128results about How to "Motion track stability" patented technology

The invention discloses a transmission mechanism for a magnetic refrigerator. The transmission mechanism comprises a lead screw and a sliding block in screw thread fit with the lead screw, wherein the lead screw is connected and arranged between bases in a rotating mode through a bearing. The transmission mechanism further comprises a claw type packaging box and linear slide rails, wherein the linear slide rails are connected and arranged between the bases in parallel; the top end of the claw type packaging box is fixedly connected with the sliding block through a bolt; the two sides of the claw type packaging box are in sliding fit with the linear slide rails; motors driving the lead screw to rotate through a gear pair are arranged on the outer sides of the bases; U-shaped magnets are respectively arranged on the inner sides of the two ends of the bases. The transmission mechanism is simple and compact in structure and relatively low in cost; the transmission mechanism is stable in transmission and high in transmission efficiency, and linear reciprocating motion of the claw type packaging box can be realized; the claw type packaging box is of a claw type structure, so that the sliding block in the lead screw device can be mounted on the top of the claw type packaging box, so that the space is saved, and the claw type packaging box can be driven to enter a narrow space without being obstructed by the magnets; therefore, the transmission mechanism can be applied to working environments with narrow spaces.

The invention discloses a spring-magnetic control coincidence fuel gas electric motor valve and is technically characterized in that a group of main steel magnets and auxiliary steel magnets, unlike poles of which attract each other are combined with a spring organically; the main steel magnets and the auxiliary steel magnets attract each other to complete the valve opening, while the spring extends to complete the valve closing; the circulation of main and auxiliary magnets absorption and spring extension complete the opening and closing; as an isolation area is formed between in the magnetic field space between the main steel magnets and the auxiliary steel magnets, an electric motor is arranged in an fully closed electric case to completely and reliably isolate the electric motor and the fuel gas; moreover, as a valve cover mechanism partly overlaps with the fully closed electric case, the overall height of the valve is reduced to meet the market requirement for a small valve. Meanwhile, the valve is characterized with the large stroke of valve opening and closing, the small pressure loss, the low failure rate, and so on, so the valve is well worth spreading.

The invention discloses a protection mechanism for a high-voltage electric cabinet. The protection mechanism comprises an outdoor high-voltage electric cabinet body, a positioning block is fixedly installed at the top of the outdoor high-voltage electric cabinet body, and a square inserting groove is formed at the top of the positioning block. Square clamping grooves are formed at the front side and the rear side of the inner wall of the square inserting groove, extrusion devices are fixedly installed in the two square clamping grooves, and a limiting block is fixedly installed at the rear side of the right side of the positioning block. According to the cooperative use of the outdoor high-voltage electric cabinet body, the positioning block, the square inserting grooves, the square clamping grooves, the extrusion devices, the extrusion block, a connecting block, a pushing block, a threaded through hole, a threaded rod, a rotary button, a limiting block, a square inserting block, a clamping mechanism, a square groove, an extrusion spring, a square clamping block, a protective cover, a strip-shaped groove, a sliding groove and a sliding block, the problem that the existing protection effect is poor, is solved. The protection mechanism for the high-voltage electric cabinet has the advantage of better protection effect.

The invention discloses a multifunctional integrated desk and chair which comprises a base plate, a desk panel mounted on the base plate, and a chair panel mounted on the base plate. The desk panel is connected with the base plate through a first connecting rod mechanism which comprises an upper connecting rod and a lower connecting rod, wherein the ends of the upper connecting rod and the lower connecting rod are hinged. The top end of the upper connecting rod is hinged to the desk panel, and the bottom end of the lower connecting rod is hinged to the base plate. The bottom face of the desk panel is further provided with a plurality of teeth. One end of an adjustment bracket is hinged to the upper connecting rod, and the other end of the adjustment bracket enables the desk panel to be kept at different angles by abutting against the different teeth. The multifunctional integrated desk and chair is reasonable in design and integrates the functions of theory teaching and learning, various mechanical drawing teaching, diversified painting teaching and the like, so that one desk and chair has the multiple classroom using functions at the same time, and the multifunctional integrated desk and chair is simple in structure and convenient to operate.

The invention discloses an industrial robot trajectory optimization method based on an improved genetic algorithm, and aims to provide a trajectory through which an industrial robot completes a given route with the shortest time and the minimum impact based on the given path and a certain constraint condition. Based on a traditional genetic algorithm, the industrial robot trajectory optimization method disclosed by the invention improves a gene selection formula, a crossover formula and a mutation formula, improves crossover and mutation probabilities on the basis of self-adaption PRGA, optimizes the action time of a mechanical arm under the condition that the motion trail of the robot is stable, reduces resonance and shaking, caused by overlarge impact, of the robot, and enables the robot to run stably and smoothly, thereby greatly improving the working efficiency and prolonging the service life of the robot.

The invention discloses a brick picking mechanical arm, comprising a clamping arm rack consisting of a pair of clamping arms, and clamping heads which are mounted at the end parts of the clamping arms and are driven to clamp the both ends of a ceramic brick by an air cylinder. The other ends of the clamping arms are fixedly arranged on a first rotating shaft; the first rotating shaft is mounted on a rack through a bearing base; the first rotating shaft is in driving connection with a motor through a speed reducing box; and a rotating device for driving the clamping heads to rotate is mounted on each clamping arm. The brick picking mechanical arm provided by the invention uses a swing arm type mechanical arm, so that a mechanism is simplified and compact without mounting a hanging rack, and less space is occupied. Furthermore, the rack of the swing arm type mechanical arm is stable, so that when the ceramic bricks are conveyed, the ceramic bricks can keep a stable movement locus, and the corrosion of the ceramic bricks can be avoided. Compared with the traditional hanging rack type brick picking mechanism, the brick picking mechanical arm provided by the invention has higher operation speed; and the production efficiency can be effectively improved.

The invention relates to a flowerpot carrying device, and belongs to the field of carrying equipment. The flowerpot carrying device is composed of a first lead screw motor, a first lead screw, a first lifting air cylinder, a second lead screw motor, a second lead screw, wheels, a carrying support, a force transmission arc-shaped rod, a second lifting air cylinder, a first clamping assembly, a first guide rod, a first guide plate, a first supporting assembly, a first lead screw nut, a second supporting assembly, a second clamping assembly, a third supporting assembly, a second lead screw nut, a second guide rod, a third clamping assembly, a second guide plate, a third lifting air cylinder, a carrying body and a carrying vehicle body. The flowerpot carrying device is characterized in that the two lead screws are installed on the two lead screw motors, the back face of the force transmission arc-shaped rod is connected to the two lead screws through the two lead screw nuts, the two guide plates are installed on the force transmission arc-shaped rod, the three supporting assemblies are correspondingly installed on the three clamping assemblies, the three clamping assemblies are installed on the carrying support, and the three lifting air cylinders are installed on the carrying vehicle body. The flowerpot carrying device has the beneficial effect that a flowerpot can be safely and efficiently carried or moved.

The present invention discloses an intelligent cooling device for a transformer substation. The intelligent cooling device comprises a distribution box body, a square block is fixedly installed at thetop of the distribution box body, a square inserting groove is formed in the right side of the square block, a threaded groove is formed in the bottom of the inner wall of the square inserting groove, and a fixing mechanism is arranged at the top of the square block; and a square inserting block is inserted into the square inserting groove. Through cooperative use of the power distribution box body, the square block, the square inserting groove, the fixing mechanism, the fixing rod, a pushing handle, a threaded rod, the square inserting block, a protection block, a square through hole, a square fixing block, a placement groove, a positioning mechanism, an extrusion spring, a square stop block, a positioning block, variable-frequency cooling equipment, a threaded groove, a thermometer, a limiting groove and a limiting block, a circular matching hole and a circular through hole, the problem that the existing cooling effect is poor is solved, and the intelligent cooling device has the advantage of being good in cooling effect and is suitable for a transformer substation.

The invention provides a product detecting machine and box pasting machine integrated forming device for printing. The product detecting machine and box pasting machine integrated forming device comprises a box pasting machine and a product detecting machine. A feeding groove is formed in the input end of the box pasting machine, and a conveying belt is arranged at the output end of the product detecting machine. The feeding groove is in butt joint with the conveying belt, an upper opening of the feeding groove is located in the front end of the conveying belt, and the horizontal height of the upper opening of the feeding groove is lower than the conveying belt. An air spraying device is arranged at the bottom of the conveying belt. Forward pushing force is provided for falling paper through airflow of spraying holes, it is guaranteed that the front end of the paper is ejected on a front end baffle of the feeding groove of the box pasting machine, and the problems that the paper is staggered and arranged disorderly are solved. Meanwhile, due to the fact that in the paper floating process, the forward pushing force is exerted on the paper, the conveying rate is increased, and the overall vehicle speed of the device is improved by about 3%. The device is simple, convenient to operate and high in practicability.

The invention discloses a pneumatic bucket rock loading machine. The pneumatic bucket rock loading machine comprises a machine body chassis and a raising bucket system. The raising bucket system comprises a rock loading bucket, a bucket bracket, a raising bucket chain and a raising bucket winding drum. The bucket bracket comprises bucket mounting support arms and semicircular rotary supports, wherein each semicircular rotary support comprises a lever straight-edge portion and an arc rolling portion, and the arc rolling portion of each semicircular rotary support is located on the machine body chassis; a raising bucket cross shaft is arranged on the lever straight-edge portions of the semicircular rotary supports, and the raising bucket chain is arranged between the raising bucket cross shaft and the raising bucket winding drum. The raising bucket system further comprises limiting steel wire ropes, one end of each limiting steel wire rope is fixedly arranged at the front operation end of the machine body chassis, and the other end of each limiting steel wire rope winds across the corresponding semicircular rotary support by one circle and then is fixedly arranged at the rear operation end of the machine body chassis. The pneumatic bucket rock loading machine can be operated in an environment with gas and inflammable gas, and the bucket can be turned over and reset smoothly.

The invention discloses a waterproof electric cabinet which comprises a power distribution cabinet body and a waterproof cover. Positioning blocks are fixedly mounted at the left side and the right side of the inner wall of the power distribution cabinet body, fixing mechanisms are fixedly mounted in the two positioning blocks correspondingly, and circular containing grooves are formed at the opposite ends of the two positioning blocks correspondingly. Clamping mechanisms are fixedly mounted in the two circular containing grooves correspondingly, positioning grooves are formed at the left sideand the right side of the waterproof cover correspondingly, and the two positioning grooves are slidably connected with the positioning blocks correspondingly. According to the cooperative use of thepower distribution cabinet body, the waterproof cover, the positioning blocks, a fixing mechanism, a square placement groove, an extrusion spring, a square convex block, a circular placement groove,the clamping mechanisms, a pneumatic cylinder, a piston, an extrusion rod, a limiting block, a circular clamping block, a positioning groove, a square groove, a circular clamping groove, a stop block,a sliding groove and a sliding block, the problem that the waterproof effect of an existing power distribution cabinet is not good, is solved, and the waterproof electric cabinet has the better waterproof effect.

The invention discloses a primary-secondary type movable dust removal cover vehicle for a steelmaking environment and a dust removal method, and belongs to the technical field of steelmaking environment dust removal. The dust removal cover vehicle comprises a pit, guide rails, a primary dust removal cover vehicle, a secondary dust removal cover, a sweeping unit and a limiting unit, wherein a firstladle is arranged in the pit, and a second ladle is arranged on the ground beside the pit; the guide rails are laid on the ground on the two sides of the pit; the primary dust removal cover vehicle is movably connected with the guide rails through first bottom rollers, and the primary dust removal cover vehicle move on the guide rails under the driving of a first driving part in a reciprocating mode; the secondary dust removal cover is movably connected with the upper part of the vehicle side of the primary dust removal cover vehicle, and the secondary dust removal cover move along the direction of the second ladle under the driving of a second driving unit in a reciprocating mode; the sweeping unit is fixedly connected with the bottom of the primary dust removal cover vehicle and sweepsthe surface of the guide rails along with the movement of the primary dust removal cover vehicle; and the limiting unit is used for limiting the driving distance between the first driving unit and thesecond driving unit. According to the primary-secondary type movable dust removal cover vehicle for the steelmaking environment and the dust removal method, the dust removal cover vehicle is designedaccording to the working conditions of the steelmaking environment, the operation is stable, moving is flexible, potential safety hazards are reduced, and high dust removal efficiency can be guaranteed.

The invention discloses a convenient-to-maintain low-voltage power cabinet, which comprises a power cabinet body, a supporting block is fixedly mounted on the right side of the power cabinet body, twosquare inserting grooves are formed in the top of the supporting block, circular positioning grooves are formed in the front sides and the rear sides of the inner walls of the two square inserting grooves, and a cavity is formed in the supporting block. According to the invention, the power cabinet body is arranged; a supporting block, a square inserting groove, a positioning groove, a cavity, apropelling mechanism, a threaded rod, a moving block, a propelling block, a rotating wheel, a belt, a connecting rod, a rotating button, a square inserting block, a circular groove, a positioning mechanism, an extrusion spring, a circular stop block, a circular positioning block, a U-shaped block, a circular through hole, a threaded through hole, a limiting groove, a limiting block and a strip-shaped through hole; the low-voltage power cabinet convenient to maintain solves the problem that the maintenance effect is poor due to the fact that an electric wire cannot be well bound in the prior art, and has the advantage of being better in maintenance effect.

The invention discloses an automatic bundling device for celery and belongs to the field of mechanical equipment for food. The automatic bundling device comprises a bottom frame, a feeding port, a batching transmission device, a bundling device and a conveying device; the feeding port is formed in one side of the bottom frame; the batching transmission device is arranged at the upper part of the bottom frame; one side of the batching transmission device communicates with the feeding port; the other side of the batching transmission device is fixedly connected with the bundling device; and a conveying device is arranged below the bundling device and is fixedly connected onto a conveying support. Rocker stepping motors are connected with swing rods through transmission shafts for rotation, and connecting rods are driven to swing, so that a batching shifting rod can move forwards and backwards; shifting pieces at equal intervals are arranged on the batching shifting rod, and batching treatment of the celery is realized; the movement track of the batching shifting rod is stable, thus the celery can be evenly separated and bundled, and the use performance is improved; and a first stepping motor drives a rotating wheel to rotate to drive an eccentric column to rotate, a bundling rod is fixedly connected with the eccentric column, so that the bundling rod moves in a circle drawing manner, and the celery is bundled.

The invention discloses electromechanical equipment with a waste recovery function. The cleaning equipment comprises a cleaning equipment body, wherein a cleaning opening is formed in the front side of the cleaning equipment body, a sealing door is movably installed in the cleaning opening, circular containing grooves are formed in the left side and the right side of an inner wall of the cleaningopening, and positioning mechanisms are fixedly installed in the two circular containing grooves. The cleaning equipment is advantaged in that the cleaning equipment body is arranged, the cleaning opening, the sealing door, the positioning mechanisms, an extrusion spring, a circular stop block, a connecting block, a pushing handle, a circular fixing block, a circular fixing groove, a circular groove, a clamping mechanism, a pneumatic cylinder, a pushing piston, an extrusion rod, a circular limiting block, a circular clamping block, a circular clamping groove, a strip-shaped groove, a sliding rod, a sliding sleeve, a square through hole, a lifting handle, a hinge base and a circular block are matched for use, problems that existing internal cleaning is troublesome, and rapid cleaning is notfacilitated are solved, and the cleaning equipment is rapid in cleaning.

The invention discloses a disinfection device for food detection appliances. The disinfection device comprises a disinfection cabinet body, wherein two square socket joint grooves are formed in the left and right sides of the top of the disinfection cabinet body, fixing grooves are separately formed in the left and right sides of internal walls of the two square socket joint grooves, two square socket joint blocks are separately inserted inside the two square socket joint grooves, two circular through holes are separately formed inside the two square socket joint blocks, and fixing mechanismsare fixedly mounted inside the two circular through holes. According to the disinfection device for the food detection appliances, through matched use of the disinfection cabinet body, the square socket joint grooves, the fixing grooves, the square socket joint blocks, the circular through holes, the fixing mechanisms, circular stoppers, elastic telescopic rods, locating tubes, extruding springs,extruding rods, fixing blocks, exhausting equipment, supporting plates, partition boards, universal wheels, locating slots, locating blocks, limiting grooves and limiting blocks, the existing problemthat the efficiency of disinfection is low is solved; and the disinfection device for the food detection appliances has the advantage of high disinfection efficiency.

The techanical characteristic of the inventions is that: by using an organic combination of a set of homopolar repulsion main and secondary magnetic steels and springs, the repulsion of the main and secondary magnetic steels can finish closing the valve and the spring tension can finish opening the valve. Because of forming a isolation belt in the magnetic field space between the main and secondary magnetic steels, the motor can be mounted in the totally-enclosed motor case to achieve the goal of separating the motor from gas completely and reliably.

The invention belongs to the technical field of nuclear power, and particularly relates to an ultrasonic scanning device. According to an annular chain structure disclosed by the invention, phased array probes with different sizes and specifications can be conveniently mounted, so that the ultrasonic probe is better attached to the outer side wall of a to-be-detected pipeline in the detection process, the movement track is stable, the detection efficiency and the reliability of a detection result are greatly improved, the length of the chain can be adjusted by increasing or decreasing the number of the connecting blocks of the chain, and the chain is flexibly suitable for pipelines with different diameters and especially suitable for ultrasonic scanning of small-diameter pipes. Besides, as the roller connected with the encoder and other rollers rotate synchronously, the angular displacement data generated by the encoder can be used for reflecting the circumferential position corresponding to the ultrasonic scanning data, and positioning and analysis of the ultrasonic scanning result are facilitated. Human errors are reduced, and defect positioning is accurate.

The invention provides intelligent cutting equipment. The intelligent cutting equipment comprises a main machine, an active feeding photoelectric switch, a sending device, a feeding device, a full-automatic feeding frame, a frame, a control device and a cutting device, wherein the frame is arranged on the main machine; the full-automatic feeding frame is arranged at the inner side of the frame; the sending device, the cutting device and the control device are all arranged on the frame; the feeding device is arranged on the full-automatic feeding frame; the active feeding photoelectric switch is arranged on the full-automatic feeding frame, and is near a feeding end of the full-automatic feeding frame; the cutting device and the active feeding photoelectric switch are electrically connected with the control device; the feeding device is used for feeding products to be cut according to feeding signals of the active feeding photoelectric switch; and the sending device is used for sending the products to be cut. The intelligent cutting equipment is provided with the active feeding photoelectric switch, so that the full-automatic feeding is realized, and the stretching and shrinkage problems of fabric in feeding are solved.

The invention discloses a ring spinning frame with a spindle convenient to replace. The ring spinning frame comprises a spinning frame body. The two sides of the spinning frame body are each connectedwith a replacement mechanism body. Each replacement mechanism body is provided with a spindle base mechanism which is provided with a conveying mechanism. The spinning frame body comprises a spindlesupporting rod and is fixedly connected with the spindle supporting rod. The other end, opposite to the spinning frame body, of the spindle supporting rod penetrates through a spindle support. The spindle support is fixed and welded to the spindle supporting rod. The side, close to the spinning frame body, of the spindle support is fixedly provided with a plurality of spindle top bases. The othersides, opposite to the spindle support, of the spindle top bases are connected with the to-be-replaced spindle. The ring spinning frame is novel in structure, convenient to use, novel and practical, and the spindle can be rapidly replaced.

The invention discloses a tank stopping control mechanism of rotary table type counter for counting candies. The tank stopping control mechanism is simple in structure and has a stable tank positioning function. The tank stopping control mechanism comprises two gate plates which are vertically arranged in the conveying direction of a tank conveying belt and are parallel to each other, wherein each gate plate is connected with one end of a pull wire; the other end of each pull wire is connected to the lower part of a V-shaped rotary arm; the two V-shaped rotary arms are arranged abreast; the middle parts of the two V-shaped rotary arms are hinged to the same supporting shaft; a guide column is arranged at the upper part of each V-shaped rotary arm; a cam is arranged on the outer circle of each guide column in a propping way; the two cams are arranged on the same cam shaft; a gate worm gear which can be meshed with a worm in a rotary table control mechanism is arranged at the end part of the cam shaft.

The invention discloses an electric cabinet convenient for heat dissipation. The electric cabinet comprises an electric cabinet body, two square through holes are formed in the right side of the electric cabinet body, the left sides of the two square through holes are communicated with the interior of the electric cabinet body, square clamping grooves are formed in the tops and the bottoms of theinner walls of the two square through holes, and four circular through holes are formed in the tops and the bottoms of the right side of the electric cabinet body. According to the invention, the electric cabinet body, a square through hole, a square clamping groove, a circular through hole, a fixing mechanism, a positioning block, a fixing rod, a lifting block, a second extrusion spring, a limiting block, heat dissipation equipment, a clamping mechanism, a square groove, a first extrusion spring, a square clamping block, a connecting block, a pushing block, a fixing groove, a sliding groove,a sliding block and a strip-shaped groove are used cooperatively; the electric cabinet convenient for heat dissipation solves the problem that the existing heat dissipation equipment is unfavorable for quick replacement when damaged, and has the advantage of quick replacement when the heat dissipation equipment is damaged.

The invention discloses a workpiece profiling cutting device which comprises a rack, a profiling guide rail, a cutter, a cutter walking mechanism and a power mechanism. The profiling guide rail is arranged on the upper portion of the rack. A to-be-machined workpiece is mounted on one side of the profiling guide rail through a clamping mechanism. The cutter walking mechanism is arranged on the upper portion of the profiling guide rail. The cutter is arranged on one side of the cutter walking mechanism. The cutter walking mechanism is connected with the power mechanism in a cooperation manner. The profiling guide rail is composed of two vertical plates with the contours consistent with the contour of the to-be-machined workpiece. The cutter walking mechanism comprises guide bearings, supporting bears and a moving table frame. The four guide bearings are arranged on the lower portion of the moving table frame. The four supporting bearings are arranged on the upper portion of the moving table frame. The four guide bearings are mounted between the two vertical plates in a cooperation manner. The four supporting bearings are arranged on the upper portions of the two vertical plates.

The invention discloses a tool vehicle for substation operation and maintenance. The tool trolley comprises a tool vehicle body, wherein a square inserting groove is formed in the rear side of the topof the tool vehicle body, a fixing mechanism is arranged on the rear side of the tool vehicle body, a square inserting block is inserted into the square inserting groove, detection equipment is fixedly mounted at the top of the square inserting block, and an access hole is formed in the right side of the tool vehicle body. By arranging the tool vehicle body, the square inserting groove, the fixing mechanism, a threaded through hole, a threaded rod, a rotating handle, the square inserting block, the detection equipment, the access hole, a fixing groove, an access door, the square groove, a clamping mechanism, a positioning block, a positioning rod, a fixing block, an extrusion spring, a connecting block, a pushing handle, a protection block, a circular matching hole, a square through hole,a limiting groove, a limiting block and a pulling groove matched in use, the problem that an existing tool vehicle is poor in detection effect. The tool vehicle for substation operation and maintenance has an advantage of being good in detection effect and is suitable for a substation.

The invention discloses a valve and a convenient disassembly and assembly structure thereof. The valve and the convenient disassembly and assembly structure thereof include a valve body, an annular insertion groove is formed in the right side of the valve body, circular through holes are formed in both the top and the bottom of the valve body, the opposite ends of the two circular through holes both communicate with the inner part of the annular insertion groove, and fixing mechanisms are separately and fixedly installed in the two circular through holes. According to the valve and the convenient disassembly and assembly structure thereof, through the matching use of the valve body, the annular insertion groove, the circular through holes, the fixing mechanisms, circular positioning blocks, fixing rods, lift buttons, compression springs, circular limiting blocks, arc-shaped clamping grooves, annular insertion blocks, placing grooves, positioning mechanisms, miniature cylinders, pushingpistons, squeezing rods, restricting blocks, arc-shaped clamping blocks, a connecting pipe, sliding grooves, sliding blocks, fixing grooves and arc-shaped block, the problems that an existing disassembly process is troublesome and it is not conducive to rapid disassembly are solved, and the valve and the convenient disassembly and assembly structure thereof have the advantages of rapid disassembly.

The invention discloses novel campus access control and monitoring integrated equipment. The equipment comprises a fixing block, wherein a cavity is formed in the fixing block, damping devices are fixedly installed on the left side and the right side of the top of the inner wall of the cavity, stress blocks are fixedly installed at the bottoms of the two damping devices, strip-shaped grooves are formed in the left side and the right side of the inner wall of the cavity, and adjusting mechanisms are fixedly mounted in the two strip-shaped grooves. According to the equipment, the fixing block, the cavity, the damping devices, pneumatic cylinders, pistons, extrusion rods, the stress blocks, the strip-shaped grooves, the adjusting mechanisms, positioning rods, positioning sleeves, extrusion springs, a moving block, connecting rods, a traction rod, a traction block, a connecting block, an access control lock, limiting grooves, limiting blocks, a strip-shaped through hole and a circular matching hole are cooperatively used, the novel campus access control and monitoring integrated equipment solves the problem that different use heights cannot be adjusted according to different heights ofusers in the prior art, and has the advantage of being applicable to different use heights.

The invention discloses a transmission mechanism for a magnetic refrigerator. The transmission mechanism comprises a lead screw and a sliding block in screw thread fit with the lead screw, wherein the lead screw is connected and arranged between bases in a rotating mode through a bearing. The transmission mechanism further comprises a claw type packaging box and linear slide rails, wherein the linear slide rails are connected and arranged between the bases in parallel; the top end of the claw type packaging box is fixedly connected with the sliding block through a bolt; the two sides of the claw type packaging box are in sliding fit with the linear slide rails; motors driving the lead screw to rotate through a gear pair are arranged on the outer sides of the bases; U-shaped magnets are respectively arranged on the inner sides of the two ends of the bases. The transmission mechanism is simple and compact in structure and relatively low in cost; the transmission mechanism is stable in transmission and high in transmission efficiency, and linear reciprocating motion of the claw type packaging box can be realized; the claw type packaging box is of a claw type structure, so that the sliding block in the lead screw device can be mounted on the top of the claw type packaging box, so that the space is saved, and the claw type packaging box can be driven to enter a narrow space without being obstructed by the magnets; therefore, the transmission mechanism can be applied to working environments with narrow spaces.

The invention discloses an installation structure of a smart watch vibration motor. The installation structure comprises a smart watch body, a bottom fixing base is fixedly mounted in the smart watchbody, a square inserting groove is formed in the top of the bottom fixing base, and a positioning block is fixedly mounted on the rear side of the inner wall of the square inserting groove. And a square inserting block is inserted into the square inserting groove. According to the installation structure, the smart watch body, the bottom fixing base, the square inserting groove, the positioning block, the square inserting block, a square matching groove, an extrusion device, a first extrusion spring, a square stop block, an extrusion block, a vibration motor, a square groove, a U-shaped protection block, a placement groove, a fixing mechanism, a second extrusion spring, a placement block, a threaded rod, a fixing sleeve, a stepped circular through hole and a limiting groove are arranged; the limiting block, the positioning groove and the square-ring-shaped protection block are used in cooperation, the problem that the existing installation effect is poor is solved, and the installationstructure of the smart watch vibration motor has the advantage of being good in installation effect.

The invention relates to a device for modeling craniocerebral impact injuries of small animalsin the field of medical experiment devices. The device comprises an experiment table, and further comprises a spring retainer, an impact rod, a deceleration retaining device, a trolley track and a pull wire fixing and releasing device which are fixed on a table top of the experiment table in sequence. A cutting board is fixed on the impact rod, an experimental trolley is mounted on the trolley track, and a rat holder is mounted on the experimental trolley. A spring is connected with the spring retainer and a spring support on the experimental trolley. On end of a pull wire is fixed at the tail of the experimental trolley, and the other end thereof penetrates the pull wire fixing and releasing device. The device is simple to operate, excellent in actual control, and capable of achieving accurate control of injuries of target parts and well simulating craniocerebral impact injuries caused by car accidents in real life.