57results about How to "Play a magnetic role" patented technology

The invention discloses a permanent magnet. The permanent magnet comprises a columnar inner magnet, a first columnar side magnet and a second columnar side magnet that are made from a permanent magnetic material; the first columnar side magnet is coaxially arranged on the external of the columnar inner magnet; the second columnar side magnet is coaxially arranged on the external of the first columnar inner magnet; the heights of the columnar inner magnet, the first columnar side magnet and the second columnar side magnet are entirely or partially different, and an approximate concave curved surface is formed; the magnetization direction of the columnar inner magnet is an axial direction; a first angle is formed between the magnetization direction of the first columnar side magnet and the axial direction; a second angle is formed between the magnetization direction of the second columnar side magnet and the axial direction; and the second angle is greater than or equal to the first angle. The invention also discloses a magnetic apparatus used for a nuclear magnetic resonance imaging system.

The invention discloses an electric cooker with fresh-keeping and refrigerating functions. The electric cooker comprises a cooker body, a cooker cover arranged on the cooker body as well as a pot body, an electromagnetic heating furnace core, a refrigerating and fresh-keeping device and a controller which are arranged in the cooker body, wherein the electromagnetic heating furnace core comprises a furnace core casing and an electromagnetic heating coil, and an electromagnetic coil part is formed after the electromagnetic heating coil wounds around the furnace core casing and corresponds to a circular arc transition part of the pot body; the electromagnetic heating coil is electrically connected with a heating control end of the controller; the refrigerating and fresh-keeping device comprises a semi-conductor refrigerating module and a heat dissipating device, a cold surface of the semi-conductor refrigerating module is attached to the bottom wall of the pot body, the heat dissipation device is arranged on the hot surface of the semi-conductor refrigerating module, and the semi-conductor refrigerating module is electrically connected with a refrigerating control end of the controller. The electric cooker also has fresh-keeping and refrigerating functions except conventional functions and can cool and refrigerate the pot body and food materials in the pot body, so that the food materials in the pot body can be kept fresh and refrigerated.

The invention discloses a dynamic dehumidification device for drying plastic particles, and belongs to the technical field of plastic particle processing. Moisture on the plastic particles is absorbedand dried through magnetic dehumidification balls, and before the magnetic dehumidification balls absorb the moisture, magnet layers can magnetically absorb hollow magnetic balls, and after the magnetic dehumidification balls absorb the moisture to a certain degree, outer moisture absorption expansion layers absorb water and expands to extrude inner elastic magnetic shielding layers, inner elastic magnetic shielding layers are extruded to be tightly attached to the hollow magnetic balls, so that a certain magnetic shielding effect on the hollow magnetic balls is achieved; and the magnetic dehumidification balls are reset inwards under the action of extension springs, and after a drying part is dried and the outer moisture absorption expansion layers lose water, the inner elastic magneticshielding layers expand outwards to weaken the shielding effect on the hollow magnetic balls, when the magnetic attraction force of the magnet layers to the hollow magnetic balls is larger than the tensile force of the extension springs, the magnetic dehumidification balls are pulled to move outwards, reciprocating dynamic movement is matched with a rotating dehumidification cylinder, and the gooddehumidification effect on the plastic particles is effectively achieved.

The invention discloses a magnetic fluid sealing shaft with a heat insulation device. The magnetic fluid sealing shaft comprises a transmission shaft, a non-magnetic sleeve, a heat insulation gasket,a left bearing, a right bearing, a magnetic component and an end cover, the left bearing and the magnetic component are sequentially sleeved on the transmission shaft from left to right, the right bearing is arranged on the right side of the magnetic component in a sleeved mode, the magnetic component and the left bearing are spaced by a certain distance, and the non-magnetic sleeve sleeves the left bearing, the magnetic component and the right bearing. According to the magnetic fluid sealing shaft, the magnetic component plays a dynamic sealing role, so that sealing between the transmission shaft and the non-magnetic sleeve can be realized, the transmission shaft is composed of a three-level stepped shaft formed by integrally forming, a first step shaft is used for isolating the heat transmitted by a heat vacuum tank through the transmission shaft, meanwhile, a magnetic conduction material shaft sleeve, a permanent magnet, magnetic poles form a magnetic conduction loop; a magnetic field is generated between the magnetic conduction material shaft sleeve and the magnetic poles, and a liquid magnetic fluid is restrained.

The invention discloses a silicon steel sheet superposed force sensor, which comprises a force bearing tube, wherein an excitation magnetic core formed by superposing silicon steel sheets is installedin the force bearing cylinder, four excitation magnetic poles are formed on four arms of the excitation magnetic core, and an excitation coil is installed on the periphery of each excitation magneticpole; an induction magnetic core formed by superposing silicon steel sheets is installed in the force bearing cylinder, four induction magnetic poles are formed on four wing ends of the induction magnetic core, an excitation coil is installed on the periphery of each induction magnetic pole, the excitation magnetic core is vertically installed in the middle of the induction magnetic core, and thefour excitation magnetic poles form two pairs of excitation magnetic poles which are radially and symmetrically arranged. When the force bearing cylinder is subjected to heavy load, component forcesare applied to the two pairs of excitation magnetic poles in the direction of the excitation magnetic poles, both the two pairs of excitation magnetic poles deform, and two symmetrical magnetic fieldsare biased. Since the excitation magnetic core and the induction magnetic core are formed by superposing the silicon steel sheets, the self-inductance coefficient is increased, and the magnetic conduction effect is achieved; in addition, since the two magnetic fields are biased and superposed, the output amplitude of an induction current generated in the induction coil is increased, and the sensitivity is improved.

The invention discloses portable electrical variable detection equipment with a quick plug, which belongs to the technical field of electrical variable detection, and is characterized in that the quick plug used for being connected with a current detection sensor and a voltage detection sensor is arranged on the detection equipment and consists of a mother joint and a son joint which are correspondingly arranged; the flexible electromagnet on the mother connector is used for magnetically attracting the flexible auxiliary magnet on the son connector after being started, rapid connection betweenthe son connector and the mother connector is achieved, the current detection sensor and the voltage detection sensor are used for detecting current and voltage, detection results are transmitted tothe flat plate, the flat plate is stored in the detection plate, carrying is convenient, and when the flexible electromagnet is disconnected, the quick plug can be disconnected, a port does not need to be manually replaced for testing, flexible plugging of the quick plug is effectively achieved through cooperation of the flexible electromagnet and the flexible auxiliary magnet, and the situation that the service life of the quick plug is shortened after the child connector and the mother connector are repeatedly plugged and unplugged is avoided.

The invention discloses a saturated gas expansion type self-developing water surface oil stain adsorption ball, which belongs to the technical field of water body oil stain adsorption; through an adsorption ball body formed by a lower oil absorption part and an upper oil absorption part, when the lower oil absorption part reaches adsorption saturation, a lower oil hydrolysis half bag is subjectedto oil hydrolysis; a lower water absorption column, a water guide body and an upper water absorption column are matched; water is guided to a magnetic shielding hydrolytic capsule, magnetic shieldingparticles formed in the magnetic shielding hydrolytic capsule are dispersed after the magnetic shielding hydrolytic capsule is hydrolyzed; at the moment, a magnetic attraction block plays a magnetic attraction role on a magnetic ball, the adsorption ball body is turned over, alternate adsorption of the two oil adsorption parts is achieved, the adsorption area is expanded, and after an oil adsorption layer of the upper oil adsorption part is adsorbed to be saturated, the upper oil hydrolysis half capsule is oiled. The effervescent gas hydrolysis layer is exposed outside, the upper water absorption column arranged in the water body is matched with the water guide body to guide water to the effervescent gas hydrolysis layer, the effervescent gas hydrolysis layer disintegrates when encountering water to generate carbon dioxide, the carbon dioxide is guided into the color development ball to react with the acid-base indicator for color development, and technicians are effectively reminded that the upper oil absorption part and the lower oil absorption part both reach the saturation state.

The invention discloses a magnetism gathering type eddy current sensor. The sensor is a magnetic focusing eddy current sensor formed by combining an exciting coil, a coil framework, a Hall sensor, a funnel-shaped magnetic shielding cover and a ferrite magnetic core. Because the magnetic core, the magnetic shielding cover and other structures are added, magnetic lines of force are bound in the sensor, and the magnetic leakage effect and the background magnetic field are reduced. And the structure of the funnel-shaped exciting coil is introduced, so that a magnetic field gathering effect can be achieved, the magnetic field at the central position of the sensor can be enhanced along with the increase of the inclination angle, and the signal intensity is improved. According to the sensor, the defect detection capability is improved from two aspects of exciting signals and receiving signals, the identification rate of tiny defects of a coating is effectively improved, and the sensitivity of detection signals is enhanced.

The invention discloses a low-loss type injection mold, and belongs to the technical field of molds. Heat storage bags for collecting waste heat are arranged at four corners of the bottom end of a mold core, the heat storage bags are connected with the mold core through heat insulation rods, upper heat conductors and lower heat conductors which extend into a conduction seat and the heat storage bags respectively are mounted in the heat insulation rods, and before water cooling forming, by means of the magnetic attraction effect, the lower heat conductor penetrates through a heat insulation plate to be connected with the upper heat conductor, heat is conducted through the upper heat conductor and the lower heat conductor and stored in the heat storage bags, heat recovery is achieved, preliminary cooling of the mold core is achieved, water cooling operation of a plurality of water cooling pipes is matched, the cooling effect on the mold core is further improved, cooling forming of a product is realized, and in the water cooling process, the lower heat conductor and the upper heat conductor are disconnected, heat in the heat storage bags cannot be lost due to water cooling of the mold core, the heat stored in the heat storage bags can be used for preheating during next pouring, and energy conservation and low loss are achieved.

The invention discloses a superconducting induction heating device capable of simultaneously heating multiple workpieces. The superconducting induction heating device comprises a magnetic conductive iron core, a superconducting coil and iron yokes, wherein the superconducting coil surrounds the magnetic conductive iron core. The magnetic conductive iron core is a columnar iron core, an upper magnetic conductive plate is arranged at an upper end of the magnetic conductive iron core, and a lower magnetic conductive plate is arranged at a lower end of the magnetic conductive iron core; the superconducting coil is connected with an external power supply through a current lead so that the superconducting coil bears a current to generate a magnetic field; each uniform iron yoke is connected withthe upper magnetic conductive plate and the lower magnetic conductive plate, an air gap is arranged in each iron yoke, and the air gaps are used for placing workpieces to be heated; and after the workpieces to be heated are placed in the air gaps, the magnetic conductive iron core conducts the magnetic field generated by the superconducting coil to the multiple iron yokes connected in parallel soas to form multiple series-parallel connection mixed magnetic circuits. The device provided in the invention can heat the plurality of workpieces to be heated at the same time, heating efficiency ofthe workpieces to be heated is improved, and the device has a better adjusting function corresponding to a heating process and power through the mixed magnetic circuits.

The invention provides a vibration motor. The vibration motor comprises a housing, a fixing assembly, a vibration assembly and an elastic connection piece. The fixing assembly is accommodated in the housing. The vibration assembly is arranged in the housing in an suspended manner through the elastic connection piece. The fixing assembly comprises a coil fixed in the housing. The vibration assembly comprises a balancing weight, a pole attached to the balancing weight and a magnetic steel assembly. The balancing weight comprises a first side part, a second side part and a connecting arm connecting the first side part and a second side part. The pole core cooperates with the first side part and the second side part to form an accommodation groove used for accommodating the magnetic steel assembly. The connecting arm is arranged on the accommodating groove. The connecting arm is provided with at least one positioning platform. The pole core is correspondingly provided with at least one positioning hole adapted to the at least one positioning platform. The vibration motor is quite high in rigidity, quite low in noise, quite high in finished product rate and low in production cost.

The invention discloses an anchoring type concrete crack repairing method, and belongs to the technical field of concrete crack repairing. The method comprises the following steps that a plurality ofanchoring balls are anchored on the inner wall of a crack position dug into a Y-shaped groove, a T-shaped anchoring nail is inserted at the bottom in the Y-shaped groove, a repairing material with a certain temperature is injected into the Y-shaped groove, the repairing material is fused and bonded with the T-shaped anchoring nail and the plurality of anchoring balls, after the anchoring balls areheated, a binder in the anchoring balls overflows, the binder is a molten resin material with cohesiveness, the repairing material is guided into the anchoring groove and fused with the binder, and the binder is used as a bonding material for anchoring between the repairing material and the anchoring balls and anchoring holes. The anchoring effect of the anchoring balls on the inner sides of theanchoring holes is effectively improved, the repairing material can be fully bonded and fixed to the anchoring balls under the matching effect of the binder, the repairing strength of the repairing material and the Y-shaped groove repairing interface is effectively improved to a certain degree, and secondary cracking of the crack is not likely to happen.

The invention discloses a packaging device for a defoaming type semiconductor chip, and belongs to the field of chip packaging, a magnetic bearing capable of moving left and right and up and down and a flexible bag connected with the bottom end wall of the magnetic bearing in a wrapping manner are additionally arranged at the bottom end part of a packaging seat, and the flexible bag is extruded by means of horizontal and intermittent up and down movement of the magnetic bearing; after being extruded, the flexible bag presses a gap in the epoxy resin in the pouring cavity to be flat, meanwhile, an elastic packaging bottom film is additionally arranged at the bottom end of the pouring cavity, and a plurality of magnetic extrusion assisting components which are in magnetic attraction with the magnetic bearing are distributed at the lower end of the elastic packaging bottom film; the magnetic extrusion assisting component upwards extrudes the elastic packaging bottom film, so that the epoxy resin is extruded in a vertical horizontal wave shape, bubbles are effectively extruded from the bottom, the defoaming effect is comprehensively improved, and bubble holes in a packaging layer at the bottom end due to the fact that the bubbles remain at the bottom are effectively avoided.

The invention relates to a radial magnetic bearing structure and a multi-degree-of-freedom magnetic levitation mechanism containing the structure. The structure comprises an upper rotator assembly, alower rotator assembly and a stator assembly. The structure is simple, processing is convenient, and the assembly precision is high. The upper rotator assembly and the lower rotator assembly form a high-strength permanent even perpendicular main magnetic field along the axial direction; the magnetic steel surfaces of the upper rotator assembly and the lower rotator assembly are wrapped with a layer of magnetic conductive materials, so an even flat magnetic field with a large occupation rate can be formed in a magnetic gap to achieve the magnetism gathering effect. The stator assembly is of a hollow disc structure and built-in coils in the stator assembly are radially utilized in pairs in the perpendicular even magnetic field to form a couple, so the output force of the coils during motionsin the magnetic gap is even, the linear degree is high, and the high rigidity and low disturbance index requirements of a radial magnetic bearing are realized. The structure solves the difficulty that existing the magnetic force of magnetic bearings is greatly influenced by changes of magnetic gaps and the power consumption is large under large load bearing force and realizes the advantages of good magnetic force linear degree, high rigidity and lower power consumption. The structure belongs to the field of astrovehicle magnetic control systems.

The invention discloses a stamping die with a double-cooling type forming punch, and belongs to the technical field of stamping. The stamping die is characterized in that an upper cooling cavity and alower cooling cavity filled with cooling liquid are arranged in a mold core and the punch respectively, and the upper cooling cavity and the lower cooling cavity communicate with each other through symmetrically-arranged air supply guide columns; air circularly flows between the upper cooling cavity and the lower cooling cavity through the air supply guide columns, and matching of air cooling andwater cooling is achieved, so that the cooling effect on the die is effectively improved; in addition, a magnetic attraction plate is arranged inside the punch, the bottom end of the magnetic attraction plate magnetically attracts a plurality of magnetic nitratine particles, after die assembly, water-soluble magnetism-starting trigger bodies located at the bottom ends of the air supply guide columns disintegrate when meeting water to trigger an on-off switch of the magnetic attraction plate, after the magnetic attraction plate is powered off, the plurality of magnetic nitratine particles fallinto the cooling liquid in the upper cooling cavity, and the cooling liquid is gradually cooled and partially frozen when meeting the magnetic nitratine particles; and on one hand, the cooling effectof the punch on the die is directly improved, on the other hand, a cooling effect on the circularly flowing air is achieved, and rapid cooling of the die is achieved.

A wireless charging device for laptops relates to wireless charging. The wireless charging device for laptops is smaller and lighter, and is flexible. A receiving coil can be either installed outside the bottom of a laptop or built in the laptop at design time. The wireless charging device comprises a high-frequency power supply, an electric energy transmitting coil, an electric energy receiving coil, and a post-processing circuit. DC power is connected to the input end of the high-frequency power supply. The two pins of the electric energy transmitting coil are connected with the output end of the high-frequency power supply. The two pins of the electric energy receiving coil are connected with the input end of the post-processing circuit. The output end of the post-processing circuit is connected with the charging port of a laptop.

The invention discloses a hybrid magnetic circuit superconducting induction heating device, which comprises a magnetic conductive iron core, a superconducting coil arranged around the magnetic conductive iron core and a plurality of parallel iron yokes distributed around the magnetic conductive iron core in the circumferential direction, wherein the upper end of the magnetic conductive iron core is provided with an upper magnetic conductive plate, and the lower end of the magnetic conductive iron core is provided with a lower magnetic conductive plate; the superconducting coil is connected with an external power supply through a current lead to enable the superconducting coil to bear current so as to generate a magnetic field; a first air gap for placing a workpiece to be heated is formedbetween the upper end surface / lower end surface of each iron yoke and the side wall of the upper magnetic conductive plate / lower magnetic conductive plate; after the to-be-heated workpiece is placed in the first air gap, the magnetic conductive iron core conducts the magnetic field generated by the superconducting coil to the multiple iron yokes connected in parallel so as to form multiple series-parallel connection mixed magnetic circuits. The device provided by the invention can heat a plurality of workpieces to be heated at the same time, the heating efficiency of the workpieces to be heated is improved, and the hybrid magnetic circuit enables the device to have a better adjusting function corresponding to the heating process and power.

The present application discloses a hybrid magnetic circuit superconducting induction heating device, which includes: a magnetic core, a superconducting coil arranged around the magnetic core, and a plurality of parallel iron yokes distributed around the circumferential direction of the magnetic core. The upper end is provided with an upper magnetic plate, and the lower end of the magnetic core is provided with a lower magnetic plate; the superconducting coil is connected to an external power supply through a current lead so that the superconducting coil can carry a current, thereby generating a magnetic field; the upper end surface of each iron yoke / There is a first air gap for placing the workpiece to be heated between the lower end surface and the side wall of the upper magnetic permeable plate / lower magnetic permeable plate; after the workpiece to be heated is placed in the first air gap, the permeable core converts the superconducting coil to The magnetic field is conducted to multiple parallel iron yokes to form multiple series-parallel hybrid magnetic circuits. The device provided by the application can simultaneously heat multiple workpieces to be heated, and increase the heating efficiency of the workpieces to be heated, and the hybrid magnetic circuit enables the device to have a better adjustment function corresponding to the heating process and power.

The invention discloses a fixed-point type soil deep nutrient conveyor, and belongs to the technical field of soil conservation. Fertilizer is stored through a plurality of storage cylinders provided with storage cavities; during use, the conveyor is buried in a soil deep layer part, electromagnets at corresponding magnetic driving plates are started, and the electromagnets magnetically attract and pull magnetic push plates corresponding to the electromagnets in position; the magnetic push plates slowly move outwards under the action of extension springs and fertilizer resistance to extrude and push fertilizer towards one side of an outer oval permeable layer, and the fertilizer slowly seeps into soil through the outer oval permeable layer, and therefore, implementation of multi-point, fixed-point and deeper delivery of the fertilizer into soil is realized; and when follow-up material supplementation needs to be carried out, the electromagnets are turned off, the magnetic pushing plates retreat under the rebound action of the extension springs, then material supplementation is carried out into the storage cavities through embedded rods and conveying pipes, the materials are recycled, the fertilizer is slowly released, and the fertilizer is not prone to volatilization, and the fertilizer can be more easily and completely absorbed by soil.

The invention discloses a device for storing traditional Chinese medicinal materials, belonging to the technical field of traditional Chinese medicinal material storage. Moisture-absorbing balls are arranged in a plurality of separately opened storage cavities, and the moisture-absorbing balls are composed of spherical moisture-absorbing cotton and inner magnetic water-absorbing bags , when the moisture in the storage chamber is too heavy, the spherical moisture-absorbing cotton and the inner magnetic water-absorbing bag located inside the storage chamber absorb moisture and reduce the moisture in the storage chamber. When the inner magnetic water-absorbing bag absorbs water and expands, it will make the elastic insulation The magnetic layer expands. At this time, the one-way exhaust pipe acts as a magnetic attraction for the inner magnetic water-absorbing bag. Under the action of magnetic attraction, the inner magnetic water-absorbing bag drives the air supply actuating body to fit together, thereby triggering the touch switch at the air supply nozzle. Therefore, the gas in the air storage box is introduced into the sub-drying chamber through the air supply pipe and the air supply nozzle to dry the spherical moisture-absorbing cotton and the inner magnetic water-absorbing bag after moisture absorption. After drying and dehydration, the moisture-absorbing ball is reset and the air intake is disconnected. The source is circulated in this way to achieve intelligent moisture absorption and drying of storage chambers in multiple different environments.

The invention discloses a manufacturing method of a decorative plate based on a grainy paper veneer, belongs to the technical field of grainy paper processing, and can realize that after wood grains are printed through magnetic ink, the grainy paper veneer on the surface has magnetism, then a plate core is provided with a magnetic groove, and the magnetic groove is combined with the plate core in a manner of clamping a magnetic pendant, so that the decorative plate is formed. By means of the magnetic attraction force of the magnetic pendant to the surface grainy paper veneer, the grainy paper veneer can be forced to tightly cover the surface of the board core, meanwhile, the bonding effect of an adhesive between the grainy paper veneer and the board core can be improved, the situation of infirm bonding is not prone to occurring, the magnetic pendant can partially extend into the adhesive to be combined with the adhesive, and the magnetic pendant is not prone to falling off. The bonding strength among the grainy paper veneer, the adhesive layer and the plate core is further improved, the phenomena of stripping and separation in the later period are avoided, the quality of the decorative plate is greatly improved, and the service life of the decorative plate is prolonged.

The invention discloses a high-absorbing and permeable coating device for steel strip processing, which belongs to the technical field of metal material coating. By setting a plurality of sets of magnetic liquid-absorbing capsules in the coating roller, the pair of electromagnetic sheets rotates to the immersion chamber. A plurality of magnetic liquid-absorbing sacs are adsorbed and stretched, and the magnetic-absorbed liquid-absorbed sac and the outer permeable layer elastically expand downwards to expand its adsorption pores and improve the adsorption of the coating solution, which is conducive to continuously fully coating the coating solution on the steel. On the belt, the coating effect is enhanced, and at the same time, the metal powder is sprayed on the steel belt under high pressure. The metal powder covers between the paint surface and the coating layer, which not only helps to improve the metal texture of the coating layer, but also improves the paint surface. It plays a protective role. In addition, the metal powder forms tiny holes on the paint surface, which is conducive to the penetration of the coating solution into the tiny holes, improving the coating effect between the coating layer and the paint surface, and effectively preventing the coating layer from stripping.

The invention discloses a hybrid magnetic circuit superconducting induction heating device based on a split iron core. The device comprises a magnetic conductive iron core, a superconducting coil arranged around the magnetic conductive iron core and a plurality of parallel iron yokes circumferentially distributed around the magnetic conductive iron core. The magnetic conductive iron core is composed of a plurality of sub iron cores formed by longitudinally cutting a columnar iron core; an upper concentrating flux plate is correspondingly arranged at an upper end of each sub iron core, and a lower concentrating flux plate is correspondingly arranged at a lower end of each sub iron core; the number of the iron yokes is equal to that of the sub iron cores, each iron yoke corresponds to one sub iron core, a first air gap is formed between an upper end face / lower end face of each iron yoke and a side wall of the upper concentrating flux plate of the upper end or a lower concentrating flux plate of the lower end of the corresponding sub iron core, and the first air gaps are used for containing workpieces to be machined. A to-be-heated workpiece can rotate under the action of external force to generate induced current to heat the to-be-machined workpiece. The hybrid magnetic circuit superconducting induction heating device based on the split type iron core is provided with the independent anti-interference magnetic circuit, and therefore, the better heating adjusting characteristic is achieved.

The invention discloses a solar heat collector with high light-collecting and heat-conducting functions, and belongs to the technical field of solar heat collection. A pair of light reflecting pieces is installed at the bottom end of a main heat-collecting pipe, sunlight is reflected to the backlight surface of the main heat-collecting pipe, the light-collecting and heating surface of the main heat-collecting pipe is expanded, in addition, a plurality of auxiliary heat collecting pipes are arranged on the main heat-collecting pipe in a distributing mode, the upper end walls and the lower end walls of the auxiliary heat collecting pipes are both wrapped around magnetic columns through elastic magnetism isolating layers, the magnetic columns are connected to a heat conducting plate through memory alloy rods, and after the temperature of the light receiving faces of the auxiliary heat collecting pipes rises, the memory alloy rods recover to the high-temperature spring phase state and contract to enable the magnetic columns to extrude the elastic magnetism isolating layers, and after the elastic magnetism isolating layers deform, the magnetism isolating effect on the magnetic columns is weakened, so that magnetic attraction strips located on the lower portions have the magnetic attraction effect on the displaced magnetic columns, the auxiliary heat collecting pipes are promoted to rotate to change the light receiving faces of the auxiliary heat collecting pipes, and the circulation is conducted, so that the auxiliary heat collecting pipes are comprehensively and uniformly heated, and heat transfer media are effectively and comprehensively conducted.

The invention discloses a breathable head-mounted Bluetooth headset, and belongs to the technical field of Bluetooth headsets. A plurality of breathable air holes are formed in a receiver, then a breathable bag and a heat conduction bag are vertically distributed, the heat conduction bag is used for absorbing heat generated in the working process of the receiver, then the heat is transferred to an internal heat floating ball, the heat floating ball expands after absorbing certain heat, so that buoyancy is increased, the heat floating ball floats upwards, and the breathable bag on the upper side is extruded, air accumulated in the breathable bag is exhausted, active ventilation in the breathable air holes is achieved, and meanwhile heat on the heat floating ball is dissipated to the outside through a magnetic heat conduction umbrella and a outer heat conduction piece to achieve cooling. After cooling, the heat floating ball sinks and resets after restoring the original buoyancy, the breathable bag also restores the shape and absorbs external air for filling, the repeated breathable action of the breathable bag can be realized by repeating the actions, and the breathability of the receiver and the ears is obviously improved.

The invention discloses an anti-pollution beverage packaging bag, which belongs to the technical field of packaging bags. A reclaiming seat is added under a base, and a reclaiming barrel extending into the bag is arranged inside the reclaiming seat, and a suction barrel is arranged in the reclaiming barrel. For the suction body, when taking the material, the user only needs to press down the toggle plate, and after the toggle plate drives the suction body to press down, a negative pressure is formed in the upper reclaiming cavity of the reclaiming barrel, and the powder beverage in the bag is removed. It is sucked into the upper reclaiming cavity through the suction pipe. After the reclaiming is completed, the lower end of the suction body is pressed against a pair of magnetic isolation lobes. The magnetic suction plate is exposed, and the magnetic suction plate has a magnetic suction effect on the magnetic blocking material plate. After the magnetic blocking material plate is pressed down, the suction port is blocked. At this time, the user can use the material guide tube to The powder beverage in the reclaiming cavity is sucked out, and there is no need to open the bag for reclaiming, realizing non-contact, non-polluting, quantitative closed reclaiming, and has a moisture-proof effect.

The invention discloses novel clinical puncture equipment for the department of cardiology, and belongs to the technical field of medical equipment. A plurality of magnetic extrusion pads are distributed at the top end of a pressing pad, in the puncture process, a magnetic ring penetrates through a magnetic isolation sleeve and then is close to the magnetic extrusion pads, and the magnetic extrusion pads are affected by magnetic attraction and extrude the bottom end of the pressing pad; an extrusion ring sleeve can further press the skin near a perforated hole in the puncture process, a needle tube and a puncture needle are not prone to shifting in the puncture process to cause trauma to the perforated hole position, meanwhile, a hemostatic ring sleeve is arranged on the inner side of the extrusion ring sleeve, a pair of magnetic hemostatic bodies is arranged at the inner bottom of the hemostatic ring sleeve, the magnetic hemostatic bodies and the magnetic ring are arranged in a repulsive mode, when the magnetic ring is close to the magnetic hemostatic bodies, the pair of magnetic hemostatic bodies oppositely move and retreat into a containing cavity, perforating of the puncture needle is facilitated, and after perforating work is completed, the magnetic ring is far away from the magnetic hemostatic bodies, the pair of magnetic hemostatic bodies oppositely reset, and the magnetic hemostatic bodies match the hemostatic ring sleeve to achieve the hemostatic effect on the perforated hole.

The invention discloses a turning belt conveyor with a chain wheel convenient to replace, and belongs to the technical field of belt conveyors. An arc-shaped driving frame with a transmission chain wheel set is installed on the inner ring side of an inner arc-shaped frame, the inner end of a rotating shaft connected to a taper roller extends into the inner arc-shaped frame, after embedded installation, a plurality of transmission parts on the transmission chain wheel set correspond to a plurality of rotating shafts in a one-to-one mode, magnetic attraction connection between the transmission parts and the rotating shafts is achieved through pushing and promoting of a pneumatic magnetic pushing body, a driving motor and a driving gear set are matched to drive one transmission part, the transmission parts are in transmission connection through the transmission chain, so that a plurality of taper rollers drive the conveyor belt to convey, by means of integral detachable butt-joint type magnetic attraction connection, installation does not need to be conducted through a traditional fixing mode, installation is easy and convenient, during disassembly, the pneumatic magnetic pushing body is reutilized to retreat to be separated from the rotating shafts, then the arc-shaped driving frame is disassembled outwards, and the chain wheel in the arc-shaped driving frame can be replaced.

The invention discloses a solar heat collector with high light collection and heat conduction, which belongs to the technical field of solar heat collection. A pair of light reflectors are installed at the bottom of the main heat collection tube to reflect sunlight on the backlight surface of the main heat collection tube and expand the main heat collection tube. In addition, multiple auxiliary heat collecting tubes are distributed on the upper end of the main heat collecting tube. The upper and lower end walls of the auxiliary heat collecting tubes are covered with magnetic columns through elastic magnetic isolation layers, and the magnetic columns are connected to the heat conducting plate through memory alloy rods. , when the temperature of the light-receiving surface of the auxiliary heat collector rises, the memory alloy rod returns to its high-temperature spring phase state, and its contraction makes the magnetic column squeeze the elastic magnetic isolation layer, and the elastic magnetic isolation layer deforms and weakens the magnetic isolation effect on the magnetic column , so that the magnetic strip located below acts as a magnetic attraction for the displaced magnetic column, prompting the auxiliary heat collecting tube to rotate and exchange its light-receiving surface, so that the auxiliary heat collecting tube can be fully heated evenly and effectively conduct heat to the heat transfer medium.