132results about How to "Play a blocking effect" patented technology

The invention provides a method for evaluating adaptability of a polymer gel profile control agent to an oil reservoir. The method comprises the following steps: step A, preparing cement artificial rock cores; step B, preparing an aqueous stratum solution; step C, preparing the polymer gel profile control agent; step D, carrying out displacement on one cement artificial rock core by respectively using the aqueous stratum solution and the currently prepared polymer gel profile control agent and calculating the residual resistance factor of the cement artificial rock core; step E, carrying out displacement on another cement artificial rock core by respectively using the aqueous stratum solution and a pure polymer liquid and calculating the residual resistance factor of the cement artificial rock core; and step F, determining a minimum gel forming concentration of a to-be-measured oil reservoir stratum according to a ratio of the residual resistance factor calculated in the step D to the residual resistance factor calculated in the step E. With the method, the polymer gel profile control agent with an appropriate concentration can be selected and used for plugging of the oil reservoir stratum, and cost is low and waste of resources is small in the process of construction.

The invention discloses a friction pendulum earthquake reduction and isolation support with multilayer shear force pins. The friction pendulum earthquake reduction and isolation support is characterized in that multilayer earthquake isolation baffle rings coaxially sleeve the top of an earthquake reduction base and are fixedly connected with the earthquake reduction base by the shear force pins, slide cushion areas are arranged between the multilayer earthquake isolation baffle rings, and the inner wall of the earthquake isolation baffle ring of the innermost layer is connected with the side walls of an earthquake reduction spherical pendulum in a slide fit manner; a limit skirt which is slidably connected with the side walls of the earthquake reduction spherical pendulum is arranged at the bottom of an upper seat plate by means of manufacturing, and the swing directions of the earthquake reduction spherical pendulum can be restrained by the limit skirt. The friction pendulum earthquake reduction and isolation support has the advantages that horizontal displacement friction pendulum earthquake reduction and isolation support structural types can be controlled under the effects of medium earthquake and major earthquake, accordingly, targets on multiple properties or targets on the earthquake resistance of bridges under multilevel earthquake ground motion can be met by the friction pendulum earthquake reduction and isolation support, and the friction pendulum earthquake reduction and isolation support is high in applicability.

The invention relates to a technique used acidity surfactant to remove oil well blocking and its formula and manufacturing method. The feature of the acidity surfactant formula is that its material weight ratio is as follows: polyoxy propylene-polyoxy ethylene glycerin ether 10-40%, polyoxy propylene-polyoxy ethylene phenol amine resin 10-45%, FC-NO1 fluorocarbon surfactant 0.0001%-0.035%, FC-3B fluorocarbon surfactant 0.0001%-0.05%, hydrochloric acid 3-10%, nitric acid 2-10%, and water 30-55%. The feature of the technique is as follows: the made-up 0.4%-0.6% acidity surfactant can be injected from hollow while running; then it can be replaced by 10-20m3 clear water. The invention has good effect and can improve yield.

The invention discloses a conveying device provided with a clamping fixing function and used for a light building material. Multiple guide barrels are fixedly connected to the inner bottom wall of a conveying box, guide rods are connected into the guide barrels in a sliding mode, the upper ends of the guide rods are fixedly connected to the lower end face of a bearing plate, the lower end of the bearing plate is fixedly connected with one end of a buffer spring, the other end of the buffer spring is fixedly connected to the upper end face of a spring seat, a clamping plate moves to drive eachfixed tooth to enter the position between two corresponding teeth of a gear, and therefore a limiting effect is achieved. Due to the existence of the combination of a first containing port and a second containing port, the effect that the building material is convenient to take and place can be achieved. Due to the existence of the combination of a fixed plate, a hinged rod and a blocking plate, the effect that the second containing port is blocked can be achieved. Therefore, the conveying device can achieve the effect that the building material is prevented from being placed in disorder.

The invention relates to the field of drying of coal gangue green bricks, in particular to coal gangue green brick drying equipment. The coal gangue green brick drying equipment comprises an outer rack; a drying chamber is installed inside the outer rack; a carrying box is arranged inside the drying chamber; the top of the drying box is provided with an air inlet; the outer wall of the drying chamber is provided with a heat exchange chamber; the edge of an inner frame of the outer rack is provided with a supporting horizontal frame; a heat exchange tube is installed on the supporting horizontal frame; the heat exchange tube is spirally installed on the supporting horizontal frame; the heat exchange tube is inserted into the heat exchange chamber and is attached to the outer wall of the carrying box; the bottom of the drying chamber is provided with a moisture discharging chamber; an exhaust end is installed at the bottom end of the moisture discharging chamber; the side of the exhaustend is connected with a pressurization tube; and a drying box is installed at the bottom of the outer rack. The coal gangue green brick drying equipment provided by the invention achieves a three-dimensional drying effect from inside to outside and increases the flowing speed by quickening flow-in of hot air flow.

The invention discloses an integrated sewage intercepting well. The integrated sewage intercepting well comprises a shaft, wherein a primary sewage intercepting device is arranged in the shaft and comprises a sewage intercepting chamber, a smashing device is arranged in the sewage intercepting chamber, a primary filtering device is arranged at the bottom of the sewage intercepting chamber, the smashing device comprises a smashing driving device, a rotating rod and smashing blades, the smashing driving device drives the rotating rod to rotate, the smashing blades are arranged on the rotating rod, a sewage pipe is arranged on the shaft wall of the shaft, a secondary sewage intercepting device and a sludge removing device are arranged in the shaft, a sludge discharging opening is formed in the shaft wall of the shaft, and a sludge collecting box is arranged outside the shaft. The integrated sewage intercepting well has the effects of intercepting sewage on sunny days and directly drainingin rainy seasons, the sewage intercepting chamber is taken out in the flood season to directly drain rainstorm, the sewage intercepting chamber is installed in the period with small rainfall to perform graded sewage interception on sewage, the smashing device is used for smashing large-particle sewage contained in the sewage to prevent the primary filtering device from being blocked to hinder water circulation, and the sludge removing device is used for clearing the sludge retained in the sewage intercepting well.

The invention provides a folding solar battery sunshade of a laptop. A solar panel covered on a U-shaped folding frame and a shell charges a rechargeable battery pack so as to supply power to the laptop. A frame is processed in a folding way and has a function of shading a display screen. For a user using the laptop outdoors or under the condition of hard light, the folding solar battery sunshade can conveniently supply power by using solar energy and can prevent the hard light from irradiating the display screen when the laptop is used.

The invention provides a basketball competing layup blocking trainer, and relates to the field of sports equipment. The basketball competing layup blocking trainer, a piston plate is arranged on the inner side of the closed pipe, the left side of the closure tube is communicated with a catheter, the left side of the box body is provided with an opposing cavity body, The inner cavity of the opposing cavity is provided with an air bag, the right side of the closed tube is communicated with a connecting tube, the left side of the top of the conductive rod is fixedly connected with a lifting rod,the left side of the top surface of the box is penetrated with a guide sleeve, the top of the lifting rod is connected with a shield, and both sides of the bottom of the box are provided with rollers.The attacker needs to unlock the opposing cavity in order to put the basketball into the basket, Thus, after the air in the air bag passes through the extrusion, the air in the air pressure tube canlower the shielding member and drive the shielding member to rise, so that the rising shielding member can have the effect of shielding the attacking player, and thus the effect during training can beimproved.

The invention discloses a ventilation anti-theft door which comprises a door body, door lock mechanisms, a ventilation channel, a filter screen, a ventilating fan and a seal cover; the door lock mechanisms are respectively arranged on the inner side and the outer side of the door body; the ventilation channel is formed in the door body, and the filter screen covers and is fixed on an opening of the ventilation channel, towards the outside of a house, and the seal cover covers an opening of the ventilation channel, towards the inside of the house; the ventilating fan is arranged inside the ventilation channel and is positioned between the seal cover and the filter screen. The ventilation anti-theft door overcomes the defects that although the anti-theft effect of an existing anti-theft door is improved day by day, the existing anti-theft door is usually made of a metal material and is mostly closed, so that air inside the house cannot be communicated with the outside, and if a window is opened only, the air quality is worse because the indoor air cannot form convection.

The invention discloses a multifunctional solar carport which comprises four supports and a ceiling supported by the supports, wherein one or two supports are of telescopic structures; the ceiling is of a folding structure and is formed by butting long sides of multiple rectangular plates through hinge shafts; the cross section of the ceiling is like sequentially connected V shapes; more than two solar panels are respectively arranged on parallel sides of every two adjacent V-shapes and are connected in parallel or in series to form a solar square matrix component; two power cords are respectively led from the positive electrode and the negative electrode of the solar square matrix component; the positive power cord is simultaneously and sequentially connected with a counter current preventing diode and a solar controller; an electric wire connected from the solar controller and the negative power cord form a charging wire of an electrombile. According to the multifunctional solar carport disclosed by the invention, the application range of the solar carport is greatly widened; the charging efficiency and the cooling process are greatly improved; a manufacturing technology is simple; the pertinence of the carport is improved, and the popularization range of the carport is widened.

The invention relates to the technical field of hardware machining equipment, and discloses a hardware instrument automatic feeding device. The hardware instrument automatic feeding device comprises rollers, rotating circular plates are fixedly connected to one ends of the rollers, and rotating plates are fixedly connected to the other ends of the rollers. The two rollers are connected through a conveyor belt in a drive mode, and the outer surfaces of the two rotating circular plates and the rollers are movably sleeved with fixing blocks. A box is arranged on the right sides of the rotating plates, a drive motor is fixedly installed in the box, and a drive rod is fixedly connected to the left end of an outlet shaft of the drive motor. According to the hardware instrument automatic feedingdevice, through the role of a baffle, a blocking effect to an open box is achieved, when a hardware instrument between two clamping pieces is not taken out in time, the open box is rotated to a position to reverse, the phenomenon that the metal instrument is damaged caused by falling is avoided, and the practicability of the whole hardware instrument is improved.

The invention relates to a residue conveying device for a building construction project. The residue conveying device comprises a bottom plate, wherein a collecting box is arranged on the bottom plate; a feeding port is formed in the collecting box; a material guiding box is arranged above the feeding port; supporting rods are arranged on the two sides of the collecting box; a rotating shaft whichpenetrates through and is rotationally connected to the supporting rods on the two sides is fixedly arranged on the material guiding box; a dustproof part is arranged between the position, close to the bottom plate, of the material guiding box and the bottom plate; a buffer part used for buffering construction waste entering the material guiding box is arranged in the material guiding box; and amaterial conveying pipe is arranged on the side wall of the material guiding box and located at the position far away from the bottom plate, the material conveying pipe communicates with the materialguiding box, a feeding hopper is arranged at the end part, far away from the material guiding box, of the material conveying pipe, and a dust falling mechanism is arranged on the feeding hopper. The residue conveying device has the advantage that the damage to the body of a constructor due to the fact that the constructor inhales dust is prevented.

The invention discloses an intelligent display storage rack which comprises a display rack body. The display rack body is internally provided with a base, a support frame, a containing rack, a voice playing device, a detection device and a control device; the support frame is fixed to the base, the containing rack is transversely arranged on the support rod, the voice playing device is arranged at the placing position of an object on the storage rack, the detection device is arranged on the display rack body, the control device is arranged the a base, a control key is arranged on the containing rack, and the voice playing device and the control key are both connected with the control device; a camera shooting mechanism and an infrared detector are arranged in the detection device. Accordingly, by arranging the voice playing device on the display storage rack, price broadcasting is conducted through the voice playing device, more conveniences are provided for clients, and meanwhile the workload of workers is reduced; the detection device is arranged on the display storage rack, voice reminding is conducted on the workers through the voice playing device according to the detection results, and the workload of the workers is greatly reduced.

The invention discloses a preparation method of a composite antibacterial coating aluminum foil. The preparation method comprises the following steps that a titanium source, a dispersing agent and a pH regulator for controlling solution to be acidic are added into an anhydrous alcohol solution, then a hydrolysis inhibitor is added, and a solution A is obtained after stirring is carried out; a silver source and a silver ion stabilizer are added into a mixed solution of alcohol and water, and a solution B is obtained after stirring is carried out; the solution B is dropwise added into the solution A, a TiO2 / Ag composite sol is obtained after stirring is carried out, and aging treatment is carried out; and a porous aluminum foil is coated with the TiO2 / Ag composite sol by using a spin-coatingmethod, and the composite antibacterial coating aluminum foil is obtained after drying. According to the method disclosed by the invention, tiny antibacterial ions are deposited into holes of the porous aluminum foil, so that the binding force of a film layer and the aluminum foil is stronger, and the adsorption efficiency is higher; and meanwhile, the silver ion stabilizer is used for preventingsilver salt and organic matters from reacting to form precipitates to destroy the steady state of the sol, so that the composite film is high in stability.

The invention discloses an environment-friendly oil immersed transformer. The environment-friendly oil immersed transformer comprises an oil tank outer shell, an oil tank inner shell, an iron core and a winding located at the center of the oil tank inner shell, an oil purification device located at the two sides of the iron core and the winding and forms a cavity together with the sidewall of the oil tank inner shell, and a noise reduction device located between the oil tank inner shell and the oil tank outer shell. The noise reduction device comprises a noise reduction interlayer and a cooling interlayer; the noise reduction interlayer which adopts a porous glass wool board has the closest distance to a noise resource and can absorb noise efficiently; as the noise reduction interlayer is installed in the oil tank, diffusion of fiber fines can be avoided, and environment pollution can be reduced; as the cooling interlayer is located between the oil purification device and the noise reduction interlayer, the temperature of transformer oil can be reduced efficiently; as the oil purification device is an enforced purification device arranged in the oil tank, the oil purification device comprises a first purifier used for filtering away nonmetal impurities and a second purifier used for adsorbing metal impurities and has no air exchange with the exterior, the degree of purity of the transformer oil can be increased; and as the noise reduction device and the oil purification device are in mutual coordination, the effect of giving consideration to noise reduction, oil purification and cooling is realized, and good environment-friendly and energy-saving performances are obtained.

The invention discloses a Micro LED display device and a preparation method, and belongs to the technical field of Micro-LED manufacturing. The Micro LED display chip comprises: a driving panel; an LED unit individually driven by the contacts; the passivation layer is located on the LED unit and comprises a first passivation layer, a second passivation layer and a third passivation layer; and the second reflective layer is formed on the second passivation layer and the third passivation layer. The preparation method comprises the following steps: providing a driving panel, and forming an LED unit on the driving panel; forming a passivation layer on the LED unit; forming a reflective layer on the passivation layer; and stripping the first reflective layer and retaining the second reflective layer. Spontaneous radiation photons are blocked through the reflective layer and are emitted only from the top, crosstalk between adjacent pixels is completely prevented, the photons reflected back by the reflective layer escape from the unique emitting window, and the light emitting power is greatly improved.

The invention discloses a solar-powered curtain wall roof device. The solar-powered curtain wall roof device comprises a deflection adjusting device, a support frame, solar-powered curtain wall boardsand a curtain wall spreading device, wherein the curtain wall spreading device comprises a mounting board; a transmission case is arranged on the mounting board; the transmission case is provided with two through sliding chutes; an upper pushing gear rack and a lower pushing gear rack are arranged in the two sliding chutes respectively in a slide manner; a right end of the upper pushing gear rackis fixedly connected with the solar-powered curtain wall board on a right side; the lower pushing gear rack is fixedly connected with the solar-powered curtain wall board on a left side; a transmission gear is connected between the lower pushing gear rack and the upper pushing gear rack in a meshing manner; the transmission gear is arranged in the transmission case; the transmission gear is fixedly connected with a transmission shaft; and the transmission shaft passes through a side face of the transmission case, and is in transmission connection with a spreading motor. The solar-powered curtain wall roof device is reasonable in structural design. The spreading manner of the solar-powered curtain wall boards and the projection angles of sunlight on the solar-powered curtain wall boards can be adjusted, so that the power generation efficiency of the solar-powered curtain wall boards is improved greatly.

The invention provides a maze type micro-fluid delay flow control unit and belongs to the field of medical instant detection product researches.The maze type blood sample delay flow control unit is used for controlling the flowing of a thrombus instant detection POCT product in fluid.Liquid flowing states can be controlled by regulating the feature sizes of a maze entrance boss structure (3), a maze exit boss structure (4), a first maze wall boss structure (5), a second maze wall boss structure (6) and channels, and accordingly flowing time of the fluid flowing through the channels is controlled.By controlling the fluid flowing time, the antigen in a to-be-detected blood sample is allowed to be fully mixed with the antibody on the POCT chip product, detection reaction time is controlled, the detection sensitivity and accuracy of the POCT detection product are increased, and good detection results can be obtained.

The invention relates to the technical field of air purification equipment, in particular to an environment-friendly ventilation system for purification plate production. The environment-friendly ventilation system for purification plate production comprises a ventilation pipeline, a filtering assembly is arranged in the interior of the ventilation pipeline, a perforated plate and a flow limiting mechanism are sequentially arranged at one end, close to an exhaust outlet, of the ventilation pipeline, the perforated plate is fixedly connected with a fixed frame, a fan and a driving device used for driving the fan are arranged on the fixed frame, the flow limiting mechanism is connected with the driving device through a linkage assembly, a dust collecting groove is formed in the lower end of the ventilation pipeline, a dust blocking filter plate is arranged on the left side of the dust collecting groove, an arc-shaped groove is formed in an inner cavity of the ventilation pipeline, the top end of the dust blocking filter plate is rotationally installed at the upper end of the arc-shaped groove, and the dust blocking filter plate carries out reciprocating deflection motion in the arc-shaped groove. According to the environment-friendly ventilation system for purification plate production, effective interception is carried out on large fibers and dust mixed in indoor air in advance, and fibers or dust adhered to the surface of the dust blocking filter plate can quickly fall into the dust collecting groove, so that the filter assembly is prevented from being blocked, and the replacement cost is reduced.

The invention relates to the technical field of natural gas pipeline installation and maintenance, in particular to a gas leakage detection device for natural gas pipeline transportation. The device comprises a first gas conveying pipeline and two second gas conveying pipelines communicated with the two ends of the first gas conveying pipeline. Flange pieces are fixedly connected between the two ends of the first gas conveying pipeline and the opposite ends of the two second gas conveying pipelines correspondingly, and a plurality of pressure sensors are fixedly connected to the inner side walls of the first gas conveying pipeline and the two second gas conveying pipelines correspondingly. First gas leakage detection mechanisms are arranged between the opposite ends of the two second gas conveying pipelines and the two ends of the first gas conveying pipeline correspondingly, and the outer side wall of the first gas conveying pipeline is slidably sleeved with a second gas leakage detection mechanism. The device can perform gas leakage detection on the whole pipe body surface and the pipeline opening joint of the gas conveying pipelines simultaneously, the detection efficiency is higher, and the detection is more accurate.

The invention discloses a silicon carbide UMOSFET device cellular structure with surge voltage self-inhibiting and self-overvoltage protection. A p-well area of the cellular structure is divided into three layers; the topmost layer is located at the left side and the right side of a U-shaped slot, and is in contact with the U-shaped slot; each of the middle layer and the bottommost layer is formed by two parts respectively arranged on the left side and the right side of the cellular structure; the left part and the right part of the middle layer and the bottommost layer are not in contact with each other; the distance between the left and right parts of the middle layer and a vertical middle axle line of the cellular structure is larger than the distance between the left and right parts of the bottommost layer and the vertical middle axle line of the cellular structure; a JFET structure is introduced onto a drain electrode current path of the cellular structure. According to the silicon carbide UMOSFET device cellular structure with surge voltageself-inhibiting and self-overvoltage protection provided by the invention, the JFET structure is specifically introduced onto the drain electrode current path, so that device on resistance and a self-locking protection effect are automatically adjusted, and meanwhile, a smaller device cellular size can be maintained.

The invention relates to a camellia edible oil storage oilcan, and aims at solving the problems that the existing edible oil can cannot be quantitatively taken and the oil taking is not easy to operate. The oilcan comprises an oilcan body, wherein an oil adding pipe is arranged at the upper end of the oilcan body, and a pipe cover is covered on the oil adding pipe. In the present invention, the quantitative oil taking effect can be realized, and the effect of conveniently taking oil can be achieved; specifically, the pressing plate is pressed downwards, and the pressing plate drives the firstmoving rod and the movable plug to move in a combined mode. Through the combined movement, gas in the fixed cylinder can be pushed into the oil storage pot body; due to the fact that the moving distance of the movable plug in the fixed cylinder is fixed, it can be guaranteed that the amount of oil entering the quantitative oil bottle is fixed, and the quantitative effect is achieved; meanwhile, the oil taking process can be completed only by pressing the pressing plate, and the effect of conveniently taking oil is achieved.

The invention discloses an asphalt composition used for a drilling fluid and a preparation method thereof. The asphalt composition takes high softening point asphalt as the nucleation phase, and high softening point asphalt is covered with high-softening-point coal asphalt. The asphalt composition comprises the following components in percentage by mass: 20-50% of high-softening-point asphalt and 50-80% of high-softening-point coal asphalt, wherein the softening point difference of high softening point asphalt and high softening point coal asphalt is 15-40 DEG C. The preparation method comprises the following steps: adding molten coal asphalt into an oxidation reactor; introducing air for performing air blowing oxidation reaction; after the reaction is ended, spraying the oxidized material on the surface of high-softening-point asphalt powder for covering; cooling to obtain the asphalt composition; adding the asphalt composition into a smashing device for mixing and smashing to prepare asphalt composition particles. The asphalt composition has a relatively high softening point, and can continuously play a role under the drilling operation conditions within a relatively wide temperature range.

The invention discloses a roof photovoltaic system which comprises a plurality of confluence strips, a junction box, tile components, at least two groups of photovoltaic components and carrying components. Each group of photovoltaic components comprise bottom plates and a plurality of photovoltaic cells, the bottom plates are flat plate without a frame, the upper surfaces of the bottom plates comprise photovoltaic cell mounting areas and bottom plate overlapping mounting areas, photovoltaic cells are mounted in the photovoltaic cell mounting areas of the bottom plates, the bottom plates of multi-group photovoltaic components are distributed in a matrix manner, parts of two adjacent bottom plates are overlapped, each group of carrying components comprise at least two support bodies, drainage grooves are formed in the support bodies and used for supporting the tile components, parts of two adjacent support bodies are overlapped, and the bottoms of the upper support bodies are positionedin the drainage grooves of the lower support bodies. According to the roof photovoltaic system, a solar cell and a building roof are effectively and integrally fused, construction cost is greatly reduced, and photovoltaic power stations are more conveniently popularized.

The invention discloses a high-softening-point asphalt granule and a preparation method thereof. The high-softening-point asphalt granule uses high-softening-point asphalt I as the core phase, and the outer layer wraps high-softening-point asphalt II. The mass percentage includes the following: Components: 20% to 70% of high softening point asphalt I, 30% to 80% of high softening point asphalt II; the softening point difference between high softening point asphalt I and high softening point asphalt II is 15 to 50°C. The preparation method is as follows: (1) Mix the high softening point bitumen II and the compatibilizer to obtain the mother liquor, then mix the high softening point pitch I and the mother liquor evenly in the reactor, and blow off the compressed gas from the bottom of the reactor, The compatibilizer is discharged through the outlet of the upper part of the reactor in the gas phase. After the blow-off is completed, the material is discharged and cooled to obtain a high softening point asphalt mixture; (2) Add the mixture, surfactant and inorganic powder obtained in step (1) to the crushing equipment Mixing and crushing in the middle, that is to prepare high softening point asphalt granules. The bitumen particles of the invention have a higher softening point and can continue to function under the conditions of drilling operations in a wider temperature range.

The invention relates to the technical field of environment detection, and discloses an urban environment detection device convenient to mount and dismount. The device comprises a frame, sliding railsare fixedly mounted at the upper end and the lower end in the frame, a movable plate is movably installed at the left end of the frame, fixed frames are fixedly installed at the upper end and the lower end of the movable plate, movable columns are movably installed in the fixed frames, first springs are fixedly installed at the lower ends of the movable columns, and clamping plates are movably installed at the front end of the movable plate. According to the urban environment detection device convenient to mount and dismount, a worker puts the detection device on the movable plate and pushesthe movable plate towards the right end, when rollers pass through the sliding rails, the distance between the rollers is reduced, the two movable columns are driven to get close to each other, the movable columns drive the clamping plates to get close to each other through the first springs, the clamping plates drive corner clamping plates to get close to each other, and therefore the effect of fixing the monitoring device is achieved.

The invention discloses a circuit breaker with good current blocking performance. The circuit breaker comprises an interrupter shell and a handle, one end of the handle penetrates through the interrupter shell and extends into the interrupter shell; a connecting shaft is fixedly connected to one side of the inner wall of the interrupter shell, a driving disc is rotatably connected to an outer surface of the connecting shaft, one end of the handle is fixedly connected with an outer surface of the driving disc, and a driving mechanism is rotatably connected to a front face of the driving disc through a short rod. The invention relates to the technical field of circuit breakers, according to the circuit breaker with good current blocking performance, a first conductive sleeve and a first conductive sheet are arranged on the surface of an upper guide pillar; by utilizing the first conductive sleeve and the first conductive sheet on the surface of the upper guide pillar, when a connecting pillar is positioned between the upper guide pillar and a lower guide pillar, the first conductive sleeve and the second conductive sleeve can be respectively contacted with the connecting pillar and the lower guide pillar, and when the connecting pillar is not positioned between the upper guide pillar and the lower guide pillar, a flow choking effect is achieved, so that the structure is simple and the circuit breaker is easy to popularize.

The invention discloses a material storage bin. The material storage bin comprises a driving assembly, a rack, electrical bars, a discharging hopper and a material collecting basin arranged below the discharging hopper, the discharging hopper and the material collecting basin are both installed on the rack, movable holes matched with the electrical bars in shape are formed in the side wall of the discharging hopper, the electrical bars are inserted into the movable holes, and the driving assembly controls the electrical bars to move at the movable holes. The electrical bars move on the discharging hopper so that the electrical bars can collide with blocky materials in the discharging hopper, the hard blocky materials are crushed, and the size of the blocky materials with high hardness is reduced; and as the viscosity of the blocky materials is reduced overall in the heating process, the crushed materials are not prone to agglomerate again.

The invention relates to the technical field of auto parts processing equipment, and specifically discloses an integrated automatic grinding and welding equipment for pipe parts, which includes a processing table, a first pipe and a second pipe. The middle part of the top of the processing table is near the front and back The positions are fixedly connected with a fixed plate, and the two fixed plates are opposite and close to the top. , the structural design of the first connecting plate, the first motor, the grinding disc, the electric telescopic rod, the first arc panel, the second arc panel, the second connecting plate and the control panel effectively make the device have the ability to control the first pipe fitting and the control panel. The rapid welding and grinding process of the second pipe avoids the need to remove the welded first and second pipes and then use the first motor and the grinding disc to polish them.