274results about How to "Strong magnetic force" patented technology

A securable system for displaying items of merchandise on a display board. The display system includes a lockable end assembly that engages the free end of at least one rod of a merchandise display therein. The end assembly is slidable along the rod between an unlocked position where items of merchandise may be removed therefrom and a locked position where items of merchandise cannot be removed therefrom. The end assembly is lockingly engaged with the rod by a locking mechanism that is linearly moveable within an interior chamber of the end assembly. The end assembly is provided with a specially shaped recess in its outer wall which is positioned perpendicular to the linear motion of the locking mechanism. A complementary dipole magnet key is inserted into the recess to unlock the locking mechanism.

The invention relates to a discontinuous deformable surgical anastomosing magnetic ring. The discontinuous deformable surgical anastomosing magnetic ring is provided with two magnetic ring bodies, wherein the magnetic ring bodies are the same in structure and opposite in magnetic poles and are arranged in a piling up manner; each magnetic ring body comprises a plurality of arc-shaped magnetic ring blocks and a plurality of connecting pieces; the arc-shaped magnetic ring blocks are movably connected in an end-to-end manner by the connecting pieces respectively through rivets so as to form the magnetic ring bodies; a plurality of discontinuous anastomosing gaps are formed in the upper surfaces of the arc-shaped magnetic ring blocks of one magnetic ring body; a plurality of discontinuous anastomosing gaps are formed in the lower surfaces of the arc-shaped magnetic ring blocks of the other magnetic ring body; the connecting pieces of the two magnetic ring bodies arranged in a piling up manner are oppositely arranged; and the discontinuous anastomosing gaps of the two magnetic ring bodies are arranged in an abutting manner so as to form a discontinuous anastomosing port. The discontinuous deformable surgical anastomosing magnetic ring is light in weight and large in magnetic force, is deformable, and can be easily discharged from a human body, the stability and the involutory accuracy of the magnetic ring are enhanced, and the magnetic losses are reduced; and the discontinuous deformable surgical anastomosing magnetic ring has the characteristics of surgical discontinuous anastomosis, and pressure gradients can be locally formed at the anastomosing port further, so that the tissue healing is better, and the discontinuous deformable surgical anastomosing magnetic ring can be applied to the fields, such as PPH (Procedure for Prolapse and Hemorrhoids), rectal low-order anus-preserving operation, circumcision, colostomy, minimally invasive endoscopic resection and anastomosis, and the like.

The invention relates to an automatic adjusting projector. The automatic adjusting projector is arranged on a ceiling and comprises an installation base. An upper cover plate of the installation base is connected with the ceiling. The installation base is connected with the upper end face of the projector through a telescopic pole. An electromagnet is arranged on the upper cover plate. A metal pressing plate is arranged in the installation base and located below the upper cover plate. The upper cover plate is connected with the metal pressing plate through springs. A first transverse sliding groove is formed in the bottom of the installation base. A sliding block is slidably connected in the first sliding groove. The upper end face of the sliding block abuts against the metal pressing plate. A rack is fixedly arranged on the side face of the sliding block. A gear engaged with the rack is in rotational fit with the installation base. The bottom of the sliding block is welded to the telescopic pole. Compared with the prior art, the projector can not only move up and down, but also can move left and right by pushing the sliding block to move through the gear and the rack, and it is ensured that contents can be completely projected on a curtain through the projector, so that the projection completeness is improved.

A bone conduction earphone in which a large magnetic force can be generated and which can achieve improvement of sound quality and reduction of power consumption is provided. A vibration part 3 is provided to include a first magnet 32 and a second magnet 34, which coaxially secure a voice coil 2 on an inner surface 12a of an upper wall 12 of a cylinder-shaped frame 10 having an open lower part and are located in an inner side region and an outer side region of the voice coil 2, and a diaphragm 36 which connects the first magnet 32 and the second magnet 34 to the frame 10. A vibration transmission cushion 5 is provided to a lower part of the frame 10 in order to transmit a vibration of the voice coil 2 and the vibration part 3 to a human body.

The invention relates to the technical field of sports requisites, namely a magnetic sealing device of a full-opened pocket arranged on a golf club bag, comprising a lateral sheet and a front sheet of the pocket. The invention is characterized in that two rows of magnetic particles or magnetic blocks which are mutually absorbed are respectively wrapped in the mutually-covering positions arranged on the lateral sheet and the front sheet of the pocket. The invention has the advantages that the invention employs the magnetic particles or the magnetic blocks to act as magnetic sealing materials of the pocket arranged on the golf club bag, thereby the magnetic particles or the magnetic blocks can be distributed in rows according to the curved shape of a pocket opening or a pocket cover to adapt the pocket cover shape ever-changing, ensuring the utility, novelty and beauty of the pocket. Moreover, compared with the sealing device which employs plastic magnetic strips as the pocket, the invention has the advantages of strong suction, reliable cover sealing and convenient and flexible opening and closing, and the invention can be used as the sealing device of all of full-opened style cases.

The invention relates to a leakage-free current variant damper which comprises a disk, a bottom disk flange arranged opposite to the disk, a hydraulic cylinder used for connecting the disk with the bottom disk flange in a leakage-free manner, a disk flange provided with a fifth aperture, and a cylinder provided with disk flanges at two opening ends, wherein the upper end of the cylinder with the disk cylinders at two ends is provided with an upper end disk flange, the lower end of the disk with the disk cylinders at two ends is provided with a lower end disk flange, and the side surface cylinder body of the cylinder with the disk flanges at two ends is provided with a circular through hole. By using a piston motion in a magnetic force traction damper, the piston moves, a current variant consumes energy when flowing through a small circular through hole on the piston, the viscosity of the current variant is changed by changing the voltage between a positive polar plate and a negative polar plate according to a vibration control requirement, and the effect of actively controlling the vibration is achieved. The damper is not easy to leak damping liquid due to no use of a dynamic sealing member.

The invention discloses a permanent magnet composite type brake chamber capable of improving brake hysteresis characteristics of a trailer and a control method of the brake chamber. The permanent magnet composite type brake chamber mainly comprises a service braking chamber, a service braking chamber push rod, a parking braking chamber, a permanent magnet ring A, a permanent magnet ring B, a parking braking piston, a parking braking chamber push rod and a connecting fork; an electronic control system comprises a brake pedal displacement sensor, a handle displacement sensor, an air pressure sensor A, an air pressure sensor B, a two-position three-way reversing valve, a two-position two-way reversing valve and a microprocessor, the microprocessor controls air pressure signals of the chambers according to a brake pedal displacement signal, a hand control valve handle position signal, a parking braking chamber inner air pressure signal and a servo quick release valve and controls the on-off state of respective electromagnetic valves of the two-position three-way reversing valve and the two-position two-way reversing valve. The trailer braking delay time can be shortened, the braking delaying characteristic of a trailer air braking system is improved, and the braking stability of a combination vehicle is improved.

The invention relates to a solenoid valve, in particular for a brake system of a motor vehicle, having an axially displaceably supported armature, on one end of which a valve sealing body is disposed and with the other end of which a pole core is associated, and having a compression spring acting in prestressed fashion between the pole core and the armature. It is provided that the compression spring is held in prestressed fashion in an axial passage of the armature, between a bolt, having the valve sealing body and held in a selectable position in the axial passage in force- and / or form-locking fashion, and a thrust piece, disposed such that it can be pushed out of the axial passage up to a stop and subjects the pole core to the prestressing force. The invention further relates to an armature for a solenoid valve. Finally, the invention relates to a method for producing an armature for a solenoid valve.

The invention discloses a magnetic suspension train which belongs to the field of vehicles. The magnetic suspension train comprises a train body and a rail, wherein a magnetic suspension device and a power source are arranged between the train body and roadbeds, and the magnetic suspension device is a magnetic resistance type magnetic suspension device; yokes I and yoke brackets of the magnetic resistance type magnetic suspension device constitute the rail; and magnets and magnet brackets are fixed at the bottom of the train body. The invention is driven by a linear motor, and the magnets in the magnetic suspension device are arranged in an array mode, thereby having a simple structure; the magnetic suspension device has great magnetic force, and can work at ordinary temperature; the rail comprises the yokes and yoke brackets, thereby having low cost; and the magnetic suspension device does not need power supply in operation, thereby consuming little energy.

The magnetic rocker comprises the bracket with bed head and surface which sets mineral and water supply grooves, magnetic bearing mechanism along the direction of the bed with magnetic system set on the magnetic bearing mechanism. The introduction of compound force field solves the serious issue of mixture, increasing selection efficiency, improving selection index. It meets special requirement for magnetic mineral and non-magnetic mineral separation and nonmetal equipment requirement except iron ones.

Disclosed is an automatic parameter regulating bistable-state piezoelectric power generation structure. Two leads are led out of the upper surface of a piezoelectric layer and a base layer respectively. The piezoelectric layer and the base layer are pasted through epoxy resin glue or other conductive glue. A first permanent magnet and a second permanent magnet are placed in a mutually exclusive mode. The second permanent magnet is fixed through a spring. The spring is a pressure spring, and the rigidity of the spring is smaller than medium. On the basis of the bistable-state piezoelectric power generation structure, the spring is added, the distance between the first permanent magnet and the second permanent magnet has variability, under the condition of giving external excitation, the position of the second permanent magnet can be changed along with the change of the position of the first second permanent magnet, and the effect of automatically adjusting the distance between the magnets is achieved. The work frequency domain of the structure is wide, and compared with a common bistable-state piezoelectric power generation structure, power generation efficiency and the power generation amount of unit time are obviously improved.

A dog clutch includes: a first rotational member; a second rotational member; a clutch member; and a pressing mechanism. The clutch member includes a meshing portion meshing with the second rotational member, an engageable portion circumferentially engaging with an engaged portion provided in the first rotational member, and a cam surface configured to generate a cam thrust in a direction of a rotation axis by a relative rotation with respect to the first rotational member. When the clutch member moves, a depth of meshing with the second rotational member is deepened by the cam thrust, and then the engageable portion engages with the engaged portion, so that the clutch member receives a torque from the first rotational member.

The invention discloses a magnetic resistance type magnetic suspension device which relates to the field of magnetic suspension. The magnetic resistance type magnetic suspension device comprises a magnet bracket, wherein two magnet arrays are respectively fixed in the magnet bracket in opposite directions; a yoke is arranged between the two magnet arrays; the two magnet arrays are respectively fixed at both sides in the nonmagnetic-conduction magnet bracket; a magnetic force line loop is formed between the two magnet arrays; a yoke I is arranged between the two arrays; the yoke I is equal to the air gaps of the arrays at the two sides; and the yoke I is supported by the nonmagnetic-conduction magnet bracket. In the magnetic resistance type magnetic suspension device, the permanent magnets are arranged based on a certain form, thereby having large magnetic force; and the magnetic suspension device can work at ordinary temperature and does not need power supply in operation, thereby consuming little energy.

The invention discloses a weld joint nondestructive testing device for pipeline flaw detection. The device comprises a machine base, a liquid storage tank is formed in the middle of the top end of themachine base, a wastewater discharging mechanism is arranged in the liquid storage tank, and limiting and screening mechanisms are symmetrically arranged at the positions, corresponding to the two sides of the liquid storage tank, of the top end of the machine base, an efficient spraying mechanism is arranged at the top end, corresponding to the top of the liquid storage tank, of the machine base; each limiting and screening mechanism comprises an embedded groove, a supporting seat and a bearing wheel. The device is scientific and reasonable in structure and safe and convenient to use, the limiting and screening mechanisms are arranged, side guide rollers are pressed to descend through the self-weight of a pipeline, electrode plates at the bottom ends of the side guide rollers are attached to electrode plates at the top ends of bottom blocks, power is supplied to an electromagnet, and electromagnets are matched with magnetic strips, and sliding blocks are pushed to slide, meanwhile, the magnetic force of the electromagnets is increased according to the current conveying strength, and the pushing force of the electromagnets for pushing the magnetic strips is increased, therefore the moving effect of the sliding blocks is guaranteed.

The invention relates to a leakage-free fluid damper, which comprises a disc, a bottom disc flange which is arranged opposite to the disc, a hydraulic cylinder for making the circular disc and the bottom circular disc flange in leakage-free connection, a disc flange provided with a fifth aperture, and a cylinder with disc flanges at two open ends, wherein the upper end of the cylinder with the disc flanges at the two ends is provided with an upper end disc flange; and the lower end of the cylinder with the disc flange at the two ends is provided with a lower end disc flange. A piston in the damper is dragged to move by magnetic force; when the piston moves, the damping fluid flows through a small round through hole on the piston; and the energy is consumed when the damping fluid flows through the small round through hole on the piston, and an effect of controlling vibration is achieved. Therefore, a sealing piece is not used, and the damping fluid hardly leaks from the damper.

Disclosed is a molded rare-earth magnet (1) which comprises rare-earth magnet particles (2) and an insulating phase (3) present among the rare-earth magnet particles (2). The rare-earth magnet particles (2) have, dispersed therein, segregation regions (4) in which at least one element selected from a group consisting of Dy, Tb, Pr, and Ho has segregated. As a result, the molded magnet can retain high magnetic properties (coercive force) and have excellent heat resistance required for use in motors, etc.

The invention relates to a method for harvesting microalgae with a magnetic separator. According to the method for harvesting the microalgae through a magnetic separation technology, as magnetic mediums are added into a microalgae culture solution for adsorbing microalgae cells, the magnetic mediums, namely microalgae compound, are rapidly and effectively captured in extremely short standing time by utilizing the magnetic separation action of a magnetic drum type magnetic separator, therefore, the microalgae cells and the culture solution are separated. The method for harvesting the microalgae is simple and convenient to operate, can be used for processing a large amount of feed liquid at the same time, the microalgae harvesting efficiency is high, the energy consumption is low, the energy is saved, and the method is easy to realize industrialization and lays a foundation for large-scale application.

Disclosed is a magnetic latching relay having an asymmetrical solenoid structure, the magnetic latching relay comprising an electromagnet portion, a contacting portion, and a drive portion; the electromagnet portion comprises a magnetic conductive component, a coil rack, and a coil; the drive portion comprises a movable iron core; further comprising two pieces of permanent magnet, the two magnets being respectively disposed on the two sides of a coil axis and being respectively adjacent to or in contact with the corresponding sides of the magnetic conductive component; and the two pieces of permanent magnets are within the movement range of the movable iron core in the axial direction of the coil, and are biased towards the moving direction of the movable iron core when a contact is in the closed state, such that the retaining force of the moving iron core is substantially the same in both closed and open states of contact. The present invention introduces biased permanent magnets into a relay having a solenoid electromagnet portion structure to make the relay a magnetic latching relay, for ensuring low heat dissipation while solving the problem of unbalanced action reset voltage of a solenoid electromagnet portion, thus improving product performance and operational reliability.

The invention relates to an external rotor AC independent excitation permanent magnet reluctance motor. The external rotor alternating current (AC) independent excitation permanent magnet reluctance motor is characterized in that a rotor support is provided with permanent magnet units and magnetizer units, which have the same quantity, and are arranged in an alternate, annular, and radially equalized manner, and in addition, gaps are arranged between the magnetizer units and the adjacent permanent units; during the rotation of the rotor support, all of the permanent magnet magnetic pole end surfaces of the permanent magnet units and all of the magnetizer end surfaces of the magnetizer units are capable of whisking excitation magnetic pole end surfaces of all of excitation body units on a stator base sequentially, and are superposed with the excitation magnetic pole end surfaces sequentially to form a shortest closed magnetic loop. The external rotor AC independent excitation permanent magnet reluctance motor is advantageous in that bad influences on the performance of the permanent magnet caused by current commutation of the excitation coils of the excitation body units are reduced, and the consumption of the permanent magnet is reduced, and excitation power supply commutation frequency is reduced, and the integral torque of the motor is improved; a parallelogram permanent magnet and magnetizer technical scheme provided by the invention is used to further eliminate a setback phenomenon, and then the operation of the motor is smoother.

The invention provides a pipeline cleaner ball receiving device with a high gradient magnetic separator and a powder separation method; the ball receiving device is provided with a pipeline cleaner ball receiving barrel and the high gradient magnetic separator arranged on a gas pipeline in sequence, wherein the ball receiving barrel is connected with a main gas pipeline at the front end of a production valve; one end of a drainage pipe is connected with the ball receiving barrel, and the other end of the drainage pipe is connected with the rear end of the production valve; and at least one high gradient magnetic separator is arranged in the drainage pipe. In the invention, the sewage and large-particle diameter particles in the main gas pipeline can be cleaned through the ball receiving barrel, and simultaneously a high gradient magnetic field region is generated outside the high gradient magnetic separator; therefore, the paramagnetic particles with extremely weak magnetism even can be attracted by magnetic force and separated from carrying fluid, and the cleaning effect of the main gas pipeline is improved. The invention has high separation efficiency, convenience for maintenance and reliability for operation; moreover, the pipeline cleaner ball receiving device is suitable for powder separation while cleaning a natural gas pipeline with high flow speed and high pressure, and is capable of improving the natural gas quality and the purification effect.

The present invention provides a coarse coal powder permanent magnet dry type echelon magnetic extractor. The magnetic extractor includes a main body machine frame, a drive wheel machine frame equipped with a drive conveyer band wheel on the machine frame body and a drove wheel machine frame equipped with a drove conveyer band wheel on the machine frame body which are set on left side and right side of the main body machine frame respectively; an echelon magnetic source is set on top of a steel plate table of the main body machine frame, a magnetic material receiving hopper is set on bottom of the steel plate table of the main body machine frame; an upper conveyor belt part of a sorting material conveyer band drove by the drive conveyer band wheel and the drove conveyer band wheel locates on right upper part of the echelon magnetic source, a down bend returning band part locates on right down part of the echelon magnetic source; a vibrating feed hopper is set on the machine frame on upper of the drove conveyer band wheel, a non-magnetic receiving material hopper is set on the machine frame on down part of the drive conveyer band wheel; a poly-magnetic dielectric is set on upper of the sorting material conveyer band located on upper part of the echelon magnetic source which can move front and back, right and left.

The present invention provides a semi-product made of a prepreg, a three-dimensional preform and an overmolded part. More particularly, the present invention provides a semi-product made of a prepreg, including at least a first prepreg layer and a second prepreg layer, characterized in that a magnetic material layer is laid between the first prepreg layer and the second prepreg layer. Since the magnetic material layer is added between the prepreg layers, the produced semi-product, when being made into a three-dimensional preform and further into an overmolded part, can be well supported and positioned due to attraction to the magnetic material layer by the magnet on the die, and therefore be precisely shaped.

The invention discloses a highly-integrated electromagnetic bistable-state MEMS relay and a manufacturing method of the highly-integrated electromagnetic bistable-state MEMS relay. The relay is an MEMS device which is characterized in that all relay systems for electromagnetic driving, elastic supporting, signal switching and the like and a permanent magnet are integrated on a single substrate. The manufacturing method includes the steps of conducting seed layer sputtering, photoresist spin coating and insulating layer forming on the substrate, forming a planar coil, a closed magnet yoke, a cantilever beam, an elastic platform, a magnet yoke platform, a movable contact, a fixed contact, a signal line and a supporting structure through the photoetching process, the electroplating process and the like, forming air gaps with the release method, and installing the permanent magnet on the elastic platform to form the complete relay. All the systems of the electromagnetic bistable-state MEMS relay are integrated on the single substrate with the MEMS technology, the integration level is improved, the size of the relay is reduced, power dissipation of the relay is reduced, work reliability of the relay is guaranteed, the manufacturing technology is simplified, and the highly-integrated electromagnetic bistable-state MEMS relay and the manufacturing method are suitable for industrialization volume production.

The invention discloses a nucleic acid extractor. The nucleic acid extractor comprises a case, a material tray, a plurality of suction heads, a liftable incubation mechanism, a magnetic adsorption assembly, a hanging basket and a guide rail, the material tray is provided with a plurality of detachable reagent plates, each reagent plate is provided with a sample tank, a lysis solution tank, a washing solution tank, an eluent tank, a waste solution tank and a reaction tank, and the reaction tanks is arranged at the rear ends of the reagent plate. The suction head is used for transferring a sample, a lysis solution, a washing solution, an eluent, a waste solution and nucleic acid, the incubation mechanism can heat the liquid in the reaction tank, and the magnetic forces of at least two magnets of the magnetic adsorption assembly are crossed, so that the magnetic force borne by the magnetic beads is increased, the magnetic adsorption time is shorter, and the effect is better. The hanging basket is ingenious in design structure, the centrifuge tubes can be taken out conveniently, and the centrifuge tubes are prevented from interfering with replacement of the reagent plate. The steps ofnucleic acid cracking, washing, elution, waste liquid treatment, nucleic acid transfer and the like are all completed in the extractor, so that the workload of personnel is reduced, and the nucleic acid extraction efficiency is improved.

The invention relates to a method for controlling an injection process of a magnetic injector of an internal combustion engine, wherein the magnetic injector has a coil. In order to open the magnetic injector, the coil is charged with a first current (IVK, Imax, Ipull). In order to keep the magnetic injector open, the coil is short-circuited, and in order to close the magnetic injector, the coil is charged with a second current (1s), wherein the second current (1s) is directed in the opposite direction of the first current (IVK, Imax, IAnzug).

An optical module and a projection apparatus using the optical module are provided. The optical module includes a base, a first frame, an optical element and at least one driving assembly. The first frame is disposed in the base. The optical element is disposed in the first frame. The at least one driving assembly is disposed between the base and the first frame. The first frame is configured to move relative to the base by a magnetic force generated by the at least one driving assembly. Each of the at least one driving assembly includes a coil and a Halbach array magnet structure, the coil and the Halbach array magnet structure face each other along a first direction, a width of the Halbach array magnet structure in the first direction is W1, and a width of the coil in the first direction is W2, and 0.7≤W1 / W2≤2.

The purpose of the invention is to provide a magnetizer for liquid / gas pipe or liquid / gas tank capable of improving burning efficiency or washing effect after refining the liquid or gaseousness molecular group in the tube or tank. The technical means comprises: a housing ( 1 ) provided out the liquid / gas pipe or liquid / gas tank; at least two electromagnetic (EM) devices ( 2 ) provided in the housing (1) in contact with an outer surface of a pipe or tank, the EM device ( 2 ) includes a U-shaped magnetic conduit ( 20 ) with two solenoids ( 21 ) disposed at both ends of the conduit ( 20 ), and a power supplier ( 3 ) transfers direct current (DC) into alternate current (AC) or directly provides AC for inducing time-varying magnetic flux lines.

The invention provides a magnetic sealing tape and relates to a sealing device. The magnetic sealing tape comprises a rubber strip body, square magnets I, square magnets II and square magnets III. The rubber strip body is integrally in a band shape. The outer surface of the rubber strip body is a curved surface protruding outwards. The inner surface of the rubber strip body is in a flat plate shape. The size of each square magnet I is larger than that of each square magnet II and that of each square magnet III. The square magnets I are arranged in two rows in the lengthwise direction of the rubber strip body and symmetrically arranged in the rubber strip body. The two rows of the square magnets I in the rubber strip body are arranged at the positions deviating from the outer surface of the rubber strip body and getting close to the inner surface of the rubber strip body. N poles and S poles of the two rows of the square magnets I are arranged in a staggered mode. A row of square magnets II are arranged between the two rows of the square magnets I and close to the inner surface of the rubber strip body. One square magnet III is arranged between every two adjacent square magnets I in each row of square magnets I on each side of a through hole. The magnetic sealing tape can be quickly mounted for sealing when used for repairing a water leaking iron ship.