318results about How to "Reduce bumps" patented technology

The utility model relates to an automatic feeding and discharging system which solves the problems that in the prior art, equipment occupies the ground space of a plant, the size of the equipment is large, cost is high, working efficiency is low, materials are prone to being collided, and the percent of pass is affected. The control mechanism is used for controlling the up-and-down material taking device to work, the up-and-down material taking device comprises a base and an up-and-down material taking mechanism arranged on the base, the up-and-down material taking mechanism comprises a lifting mechanism arranged on the base and a taking and placing mechanism arranged on the lifting mechanism, the base is provided with a moving guide assembly, and the moving guide assembly is arranged on the base. The moving guide assembly enables the base to move on the air track so that the positions of the upper material taking mechanism and the lower material taking mechanism can be changed, the lifting mechanism is used for enabling the taking and placing mechanism to descend for downward discharging and ascend for resetting or upward material taking, and the taking and placing mechanism is opened for discharging materials and tightened for grabbing materials.

The invention discloses an LMES suspension system, belongs to the field of vehicle suspensions, and aims to improve the adjustment performance of the suspensions. Comprising a hydraulic shock absorber, a spring, a linear motor and a controller. The hydraulic shock absorber comprises a piston rod and an outer barrel structure which is arranged outside the piston rod in a sleeving mode and is vertically and movably matched with the piston rod. The linear motor comprises a stator and a rotor, and the stator and the rotor are movably matched in the vertical direction. Stators of the linear motors are connected with piston rods of the hydraulic shock absorbers, and the top ends of the piston rods are connected to an upper support of the vehicle body; a rotor of the linear motor is connected with an external cylinder structure of the hydraulic shock absorber, and the bottom end of the external cylinder structure is connected to a lower support used for being installed on a wheel. And the spring is arranged between the rotor of the linear motor and the upper support. The output force of the linear motor and the damping force of the hydraulic shock absorber are overlapped to form the output force of the suspension system, compared with a traditional suspension system, the adjusting performance of the suspension system is greatly improved, and the comfort performance of a vehicle is improved.

The invention relates to the technical field of soil remediation, in particular to a soil pollution remediation agent feeding device which comprises a rolling assembly, a plurality of feeding assemblies arranged on the rolling assembly and a connecting assembly used for being connected with an external machine. The rolling assembly is of a cylindrical structure, and a plurality of throwing assemblies are evenly distributed on the outer surface of the rolling assembly. The rolling assembly is connected with an external machine through the connecting assembly; driving force is provided through an external machine to drive the rolling assembly to advance on the ground; the feeding device further comprises a material conveying assembly. The material conveying assembly provides a liquid repairing agent for the rolling assembly with the hollow interior. A passage for conveying a repairing agent is reserved between the rolling assembly and the putting assembly; in the advancing process of the rolling assembly, the putting assembly is inserted into the soil under the gravity effect of the rolling assembly, the output end is kept in an open state, and the putting assembly is used for conveying the liquid remediation agent into the soil to complete agent putting. Remediation agents can be conveniently put into soil, and the working efficiency is improved.

The invention relates to the technical field of asphalt concrete paving, in particular to a large-thickness paving device for large-particle-size permeable asphalt concrete.The large-thickness paving device comprises a box body, the bottom of the box body is obliquely arranged, a shell is fixedly installed at the rear end of the box body, and a rectangular hole communicating with the interior of the shell is formed in the side wall of the box body; a rotating shaft is horizontally and rotatably installed in the shell, auger blades are symmetrically and fixedly connected to the rotating shaft in a sleeving mode, a plurality of discharging openings communicated with the interior of the shell are formed in the lower surface of the shell, a driving shaft is rotatably installed at the upper end of the shell, and a driving motor is fixedly installed at the upper end of the shell. An output shaft of the driving motor is fixedly connected with the driving shaft, and a transmission assembly used for driving the rotating shaft to rotate is arranged on the shell. Due to the arrangement of the multiple discharging openings, asphalt concrete can be uniformly paved on a pavement, after the pavement is ironed and compacted, the compactness and flatness of the pavement are guaranteed, and the overall quality of the pavement is effectively improved.

The invention discloses fused quartz plate welding equipment with a positioning effect, and relates to the technical field of welding, and the fused quartz plate welding equipment comprises a composite mechanism. According to the fused quartz plate welding equipment with the positioning effect, through the design of the composite mechanism, the two fixing mechanisms are arranged and distributed on the two sides of the composite base, quartz plates are placed on the inner sides of the fixing mechanisms, and the effect of fixing the plates is achieved through the fixing mechanisms, so that the stability during welding is kept, deviation is prevented, and the welding precision is improved; the fixing mechanisms slide on the outer sides of the sliding rail columns, the two fixing mechanisms move towards one side of the welding machine, the mechanical butt joint effect is achieved, deviation caused by manual butt joint is avoided, the sliding frame body slides on the inner side of the composite frame body, the welding machine is driven to conduct transverse operation, and therefore the plate welding effect is achieved. When laser welding is carried out, dazzling light exists, the light is shielded through the protection mechanism, the working environment is optimized, and the vision of personnel is prevented from being affected.

The utility model belongs to the technical field of medical rescue equipment, and particularly relates to a plateau pressurizing medical emergency ambulance which comprises a chassis, an equipment cabin, a pressurizing cabin, a pressurizing module, an oxygen supply module, a medical emergency module and a function guarantee module. The equipment compartment is arranged on the rear side of a cab of the ambulance; the pressurizing cabin is located on the rear side of the equipment cabin and comprises a shell, a heat preservation layer and a damp-proof layer. The pressurizing module comprises a pressurizing host and a gas storage tank; the pressurizing module is used for generating and storing compressed air and conveying the compressed air into the pressurizing cabin. The oxygen supply module comprises an oxygen generator and an oxygen supply terminal; and the oxygen generator is arranged in the pressurizing cabin and is connected with the oxygen supply terminal through a pipeline. And the medical first-aid module is accommodated in the pressurizing cabin. And the function guarantee modules are respectively arranged in the pressurization cabin and the equipment cabin and are used for providing power application, environment control, communication and environment illumination guarantee. The utility model aims to solve the problems of poor cross-country ability, poor comfort and single guarantee function of the existing guarantee equipment.

The utility model discloses a photovoltaic module transfer carrier, and relates to the technical field of photovoltaic module transfer. The plurality of layers of supporting assemblies are arranged at intervals in the vertical direction, each layer of supporting assembly comprises a plurality of supporting arms, the supporting arms are rotationally connected with the tool frame and used for supporting the photovoltaic module, and the photovoltaic module comprises at least one supporting beam and a plurality of photovoltaic panels supported and fixed by the at least one supporting beam; in the process that the supporting arms located on the lower layer rotate to the supporting positions to support the photovoltaic modules or under the condition that the supporting arms are located on the supporting positions, the corresponding supporting arms located on the adjacent upper layer can be driven to rotate from the initial positions to the supporting positions; the support arm at the initial position does not interfere with the movement of the photovoltaic module along the vertical direction, and provides avoidance for the support arm at the lower layer to bear the photovoltaic module. Through the photovoltaic module transfer carrier, damage to the photovoltaic module in the transportation process can be reduced, the field installation efficiency is improved, the photovoltaic module loading efficiency is improved, and the photovoltaic module loading cost is reduced.

The invention relates to the technical field of injection molds, and particularly discloses a mold closing device of an injection molding machine and the injection molding machine. The mold closing device comprises a fixed mold and a movable mold which are installed on a mold frame, the movable mold is in sliding connection with the mold frame through a connecting frame, and a power air cylinder used for driving the movable mold to open and close is arranged on the mold frame; sliding frames are slidably connected to the two sides of the mold frame correspondingly, a material receiving plate is slidably connected to the interiors of the sliding frames through triggering pieces, and a cleaning brush plate is arranged at the end, away from the material receiving plate, of each sliding frame. An ejection mechanism is arranged in the connecting frame, and an intermittent power mechanism is arranged between the sliding frame and the fixing frame. According to the mold, the fixed mold core can be cleaned, meanwhile, the material receiving plate can be driven to slide out from the interior of the sliding frame, in the stroke, the ejection mechanism is driven by the driving part to eject a formed workpiece, discharging is conducted in cooperation with the material receiving plate, and the practicability and the working efficiency of the mold are greatly improved.

The invention belongs to the technical field of part machining, and particularly relates to multifunctional machining equipment for automobile part production. The machining table is slidably connected to the interior of the workbench through a sliding rail. A containing table is fixedly connected to the position, below the machining table, in the workbench. The middle part of the placing table is rotationally connected with a placing disc through a motor; a plurality of first sliding grooves are formed in the top of the containing table and located around the containing disc. According to the step, a placing disc installed on a placing table is used in cooperation with the clamping effect of a clamping plate, the clamping effect can be provided for to-be-machined parts of different specifications, the follow-up drilling or grinding effect is completed by replacing a drill bit below a machining table, meanwhile, the placing disc can be driven by a motor to rotate, and the machining efficiency is improved. And through the integrated effect of the equipment, the tedious operation of carrying the workpiece to be machined back and forth is reduced, the stability of the workpiece is kept, and collision is reduced.

The invention relates to the technical field of sheet metal machining, and discloses a welding device for sheet metal machining. The welding device comprises a base, a rectangular strip is fixedly connected to the inner wall of the base, a workbench is slidably connected to the rectangular strip, a U-shaped support is fixedly connected to the top of the base, and a motor adjusts the height of the L-shaped support through a threaded rod; an L-shaped support drives the welding machine to move through an O-shaped plate, an electric telescopic rod is started, the electric telescopic rod pushes the O-shaped plate to move towards the right side to drive a large rack, the large rack drives a first rotating shaft to rotate clockwise through a large gear, the left side of the belt is shortened, and the right side of the belt is lengthened; the belt drives the rectangular sliding strip and the workbench to move towards the left side through the arc-shaped fixing block, so that the workbench and the welding machine move in opposite directions, the workbench moves towards the right side, the moving distance of a metal plate is reduced, the welding time is shortened, position deviation of the metal plate in the moving process is prevented, and the welding efficiency is improved.

The invention provides an agricultural multifunctional picking vehicle and a working method thereof. The agricultural multifunctional picking vehicle comprises a picking vehicle picking mechanical arm, an electric cabinet, a storage classification cabin, crawler wheels, a picking vehicle body, a picking vehicle split charging module and an automatic obstacle avoidance module. Two sides of the vehicle body are connected with symmetrically distributed crawler wheels, an automatic obstacle avoidance module is arranged at the front end of the vehicle body, and a picking vehicle split charging module is loaded at the upper end of the automatic obstacle avoidance module. An electric control box is arranged in the center of the vehicle body and comprises a microprocessor, a storage battery and a wireless communication module, and all subsystems of the picking vehicle are generally controlled. Mechanical arms are arranged at the rear end of the vehicle body. The crawler wheels are used for achieving movement, instability caused by multiple road conditions such as gullies and muddy farmland ground is avoided, meanwhile, vibration of the vehicle body is effectively relieved, meanwhile, the mechanical arm is high in freedom degree, it can be guaranteed that the robot can adapt to crops of different heights, and the application range of the robot is wider. The device is reasonable in structural design, complete and stable in function, easy to operate and capable of efficiently completing crop picking.

The invention discloses zip-top can one-way air conveying equipment, and relates to the technical field of zip-top can conveying equipment. The guide part is mounted on the machine body; the two channel plates are installed on the machine body, oppositely arranged and located below the guide part, and the ends of the zip-top cans are opposite to the channel plates; the conveying path is located in a space formed by the two channel plates and used for single-row movement of the zip-top cans, and first air holes inclining in the conveying direction of the conveying path are formed in the positions, right facing the conveying path, of the channel plates; the air boxes are installed on the machine body, located on the two sides of the channel plate, communicated with the fan air outlet pipeline and used for blowing air to the first air holes; a second air hole inclining upwards is formed in the position, right opposite to the guide part, of the middle of the channel plate, and the air box communicates with the second air hole to blow the zip-top cans in the second air hole upwards. And the conveying path passes above the second air hole. The ring-pull can air conveying line has the function of converting multiple paths into a single path, and the conveying efficiency and the conveying quality are improved.

The invention relates to the technical field of valves, in particular to a low-temperature stop valve which comprises a valve body, a valve seat fixedly arranged in the valve body, a valve clack located above the valve seat and a valve rod driving the valve clack to reciprocate. A protruding part is fixedly arranged on the valve body, a mounting opening is formed in the protruding part, and a valve deck used for blocking the mounting opening is arranged above the valve body. The valve cover comprises a mounting part fixedly arranged on the valve body and an extension part fixedly arranged on one side of the mounting part, the extension part is provided with a threaded through hole which is communicated with the mounting opening and allows the valve rod to be screwed in and penetrate through, and a hand wheel is coaxially and fixedly arranged on the outer end part of the valve rod; two protective covers are symmetrically arranged outside the extending part, the edges of the lower sides of the protective covers are hinged to the peripheral face of the protruding part, receding notches allowing the extending part to be clamped in are formed in the side faces, close to each other, of the upper portions of the two protective covers, and a locking piece is arranged outside the valve body. In the application, the possibility of collision and damage of the extension part in the transportation process is reduced.

The utility model relates to the technical field of cold chain logistics transportation equipment, in particular to a passive cold chain box with a cold storage plate elastic clamping mechanism, which comprises an inner box wall, and an elastic clamping mechanism I and an elastic clamping mechanism II are respectively mounted on the upper side and the lower side of the inner box wall. A first cold storage plate and a second cold storage plate are clamped by the clamping parts of the first elastic clamping mechanism and the second elastic clamping mechanism correspondingly. Through the cooperation of the operating handle, the pressing plate, the inner box wall, the elastic clamping mechanism and the clamping pieces, when the box is used, the operating handle on the pressing plate is pulled to enable the pressing plate to rotate by an angle, the pressing plate can be separated from the inner box wall, a cold storage plate is placed in the clamping pieces of the pressing plate and the clamping grooves of the inner box wall, then the operating handle is loosened, and the pressing pieces can tightly press the cold storage plate; in addition, due to the special design of the clamping mechanism, collision, vibration and noise of the cold storage plate in the logistics transportation process are reduced.

The utility model relates to the technical field of electric tricycle rear axle damping shock absorbers, and discloses an electric tricycle rear damping shock absorber which comprises a damping shock absorber body, fixing blocks are fixedly connected to the upper end and the lower end of the damping shock absorber body respectively, and connecting blocks are rotationally connected to the outer portions of the two fixing blocks respectively. Supporting blocks are arranged outside the two connecting blocks, a pull rod is slidably connected to the interior of each supporting block, a pull plate is fixedly connected to the left side of each pull rod, two offset rods are rotatably connected to the right side of each pull plate, sliding plates are rotatably connected to the opposite sides of the two offset rods, and clamping blocks are fixedly connected to the bottoms of the two sliding plates; two fixing rods are fixedly connected to the interior of the supporting block. According to the utility model, the damping shock absorber can be conveniently mounted and dismounted, the damping shock absorber can be quickly replaced and assembled, time and labor are saved, and the practicability is improved.

The utility model relates to the field of wind power generation, in particular to a tool for assembling a hub of an offshore wind turbine type, which comprises a supporting mechanism used for jacking up a blade hub, and a clamping mechanism used for fixing the blade hub is arranged on the upper side of the supporting mechanism. The height of the assembly table is quickly adjusted through three groups of damper sliding seats and hydraulic rods at the bottom of the assembly table, and meanwhile, the assembly table can be conveniently adjusted at a plurality of inclination angles, so that the lifted blades can be more conveniently butted and mounted; the movable seat moves to enable the two ejector rods to push the arc-shaped strip to wrap and fix the blade hub hung on the placing seat so as to avoid extrusion damage, meanwhile, the traction seat and the supporting rod support the traction belt, so that the mounting end of the hung blade can be more conveniently guided to the mounting position of the blade hub, the mounting speed is increased, and the collision condition is reduced.

The utility model discloses an original tobacco leaf turnover box arc-shaped edge sealing structure and an edge sealing mould, the edge sealing structure comprises a cover plate, the cover plate comprises a top contact surface, a side contact surface and a bottom connecting surface, the bottom of the side contact surface extends to the bottom connecting surface, a hollow groove is arranged in the cover plate, the hollow groove is arranged along the height direction of the cover plate in a penetrating mode, and the bottom of the hollow groove is connected with the top contact surface. The hollow grooves are evenly distributed in the width direction of the cover plate, first arc-shaped faces are arranged at the connecting positions of the hollow grooves and the top contact face, the longitudinal section of each first arc-shaped face is in an arc shape, and second arc-shaped faces and third arc-shaped faces are formed at the connecting positions of the hollow grooves and the side contact faces. And the second arc-shaped surface and the third arc-shaped surface are bent inwards and are symmetrically arranged. The residual edge on the top contact surface of the cover plate is subjected to ultrasonic welding or hot melting to form the first arc-shaped surface, the thickness of the first arc-shaped surface is the same as that of the cover plate, and meanwhile, the first arc-shaped surface is arc-shaped, so that hands can be effectively prevented from being cut by the maximum contact surface.

The invention relates to the technical field of metal processing, and discloses a punching tool for sheet hardware products, which comprises a clamping base, a positioning frame, a buffer base and a plurality of clamping mechanisms, a rectangular groove is formed in the clamping base, the position of the rectangular groove corresponds to that of the positioning frame, a plurality of welding plates are fixedly connected to the inner wall of the positioning frame, and the clamping mechanisms are fixedly connected to the welding plates. The welding plates are evenly arranged in the clamping base, the clamping mechanism comprises a rotating pipe and a transmission rod, a butt-joint plate is installed in the clamping base, the butt-joint plate is clamped at the bottom of the rectangular groove, and a collecting ring is installed at the top of the butt-joint plate; compared with the prior art, when the reset base plate is extruded by the drill bit, the reset base plate and the reset ball can deform together, the abrasion-resistant piece can abut against the periphery of the drill bit and collide with the edge of the chip groove of the drill bit, and metal chips clamped in the chip groove can be rapidly shaken off; the situation that the drill bit is entangled on the surface of the drill bit is reduced, and the cleaning effect can be achieved.

The invention provides an intelligent logistics transportation storage goods shelf, and relates to the technical field of transportation storage goods shelves, the intelligent logistics transportation storage goods shelf comprises two sets of goods storage shelves, a front fixing frame and a rear fixing frame are fixedly installed between the two sets of goods storage shelves, the front fixing frame is located on the front side of the rear fixing frame, and the rear fixing frame is higher than the front fixing frame; a first supporting frame and a second supporting frame are installed between the front fixing frame and the rear fixing frame in a sliding mode, a rubber supporting bag is arranged between the first supporting frame and the second supporting frame, the rubber supporting bag extends downwards to bag goods, and a plurality of side supporting panels and a rubber bottom pad support the bottom of the rubber supporting bag. The deformable rubber supporting bag is used for supporting goods, so that different goods can be stored, particularly fragile objects and small sample objects can be well stored through self deformation of the rubber supporting bag, the fragile objects can be prevented from being collided, and the storage efficiency of the fragile objects and the small sample objects can be improved. And small articles can be prevented from being lost.

The invention relates to a vehicle torque determination method and device and a vehicle, and relates to the technical field of computers. The method is applied to a vehicle and comprises the steps of obtaining road surface information and vehicle driving data of a target road section where the vehicle is about to pass; based on the road surface information and the vehicle driving data, road surface impact force borne by the vehicle passing through the target road section is determined; determining a target torque based on the road impact force; the target torque is motor torque used when the vehicle passes through the target road section. Therefore, when the road surface impact force is determined, the operation data of the vehicle and the road surface information of the target road section are comprehensively considered, the accuracy of the road surface impact force is improved, and when the vehicle passes through the target road section based on the target torque, the influence of the road surface impact force on a transmission system of the vehicle can be avoided; therefore, the abnormal sound of the transmission system of the vehicle due to the inherent clearance of the system can be effectively avoided.

This utility model discloses a container, comprising a frame, a top panel, side panels, end panels, and door panels. At least one of the top panel, side panels, end panels, and door panels includes at least two layers: a steel plate and a composite material plate. The steel plate is fixedly connected to the frame. The composite material plate is located on at least one side of the steel plate facing inwards and outwards, and is fixedly connected to the steel plate. The composite material plate has the same shape as the steel plate to be integrally fitted with it, or the composite material plate is flat and partially fitted with the steel plate. According to this utility model, at least one of the top panel, side panels, end panels, and door panels is configured as a two- or multi-layer structure, wherein the side of the steel plate facing inwards and / or the side facing outwards is a composite material plate. This design allows the container to meet long-term requirements for wear resistance, acid and alkali resistance, salt spray resistance, and mildew resistance. Furthermore, container wall maintenance is relatively simple and inexpensive.

The utility model relates to wire drawing machine pay -off technical field, and disclose a wire drawing machine pay -off device with line pressing structure, including bottom plate, pressure mechanism and abutting mechanism, the upper surface fixed connection of bottom plate has the support plate for supporting pay -off roll, the top of support plate is equipped with the fixed ring for fixed pay -off roll, one side of bottom plate is equipped with support column, the pressure mechanism is established in the top of support column, the pressure mechanism sets up in the circumference of pay -off roll upper, the utility model provides a wire drawing machine pay -off device with line pressing structure, through the cooperation setting of bottom plate, support column and pressure mechanism, can press the steel wire rope on the line roller in the upper, make the movement of steel wire more smooth in the pay -off process, reduce the knot of the steel wire between the occurrence, further cooperation setting abutting mechanism in the bottom, can extrude the steel wire on the line roller from below, make the steel wire more stable when paying -off.

The utility model discloses a hanging arm for a rail train, which comprises a supporting plate, a threaded rotating rod, a U-shaped fixing plate, a small sliding block, a lifting block, a lifting rod, a rotating block, a rotating rod and a rotating roller, a placing groove is welded on the outer surface of the rotating roller, a rotating shaft is sleeved on the inner surface of the rotating roller, one end of the supporting plate is sleeved with a moving rod, and the other end of the supporting plate is sleeved with a sliding block. A movable block is welded to one end of the movable rod, a fixed rod sleeves the lower surface of the movable block, and a fixed roller is welded to the bottom end of the fixed rod; by improving the hanging arm for the rail train, the hanging arm for the rail train has the advantages that the structural design is reasonable, the small sliding blocks on the inner surface of the sliding rail can move horizontally when the direction is changed, potential safety hazards caused by uneven stress are offset as much as possible, and the safety of the rail train is improved. And the threaded rotating rod can vertically move relative to the U-shaped fixing plate, so that overhigh stress during high-speed driving is reduced, and the problems and defects of an existing device are effectively solved.

The present invention relates to the technical field of spacer irons, and proposes a spacer iron of a roller beam spacing device, which has the function of spacing long steel rails and can eliminate the sliding friction between the spacer iron system and the bottom of the long steel rail while bearing the lateral force of the long steel rail, thereby greatly reducing the wear of the spacer iron system, increasing the service life of the spacer iron system, reducing the maintenance frequency and workload, reducing the failure rate of the spacer iron system, and eliminating the safety hazard of the spacer iron system getting stuck in the long steel rail. The system has good operational flexibility and is more convenient to use. The system comprises a long steel rail, a roller beam system and a spacer iron system, wherein the roller beam system comprises a roller beam, a left end of the roller beam is fixedly connected to a plurality of left wheel frames and a plurality of support plates, a right end of the roller beam is fixedly connected to a plurality of right wheel frames, support wheels are installed in the plurality of left wheel frames and the plurality of right wheel frames, and the support wheels are used for gravity support of the long steel rail, through holes are opened on the plurality of support plates, and sleeves are fixedly connected in the plurality of through holes.

The utility model discloses a self-adjusting fruit support mechanism adapting to fruit diameter, which belongs to the technical field of agricultural instruments, solves the problem that the height of the conventional tray cannot be automatically adjusted according to the size of the fruit, and adopts the technical scheme that the self-adjusting fruit support mechanism mainly comprises a tray, a base and a guide shaft, the tray is fixedly connected with the guide shaft, the guide shaft penetrates through the guide hole in a sliding mode so that the tray can be arranged above the support in a lifting mode, a spring located between the tray and the base is arranged on the outer circle of the guide shaft, and the spring lifts the tray upwards. The height of the tray changes along with the weight of the fruits on the tray. The fruit tray is mainly used for achieving self-adaptive adjustment of the height of the tray according to the size of fruits.

The utility model provides a fingerprint identification device based on a neural network, which relates to the technical field of identification devices and comprises a main body component, a voice broadcast component is fixedly mounted on the front surface of the main body component, an energy storage structure is fixedly mounted on the left side surface of the main body component, and a control structure is arranged on the front surface of the main body component. According to the recognition device based on the neural network, by arranging the fingerprint recognition plate and the image recognition camera, fingerprint information and image information of a user can be scanned, so that the effect of more accurate information recognition is achieved, the situation that information cannot be recognized when fingerprints cannot be scanned is avoided, and the user experience is improved. Compared with the prior art, the fingerprint identification device has the advantages of being wide in application, capable of broadcasting operation steps and identifying information through the broadcasting loudspeaker, convenient to operate, and capable of reducing external collision of the fingerprint identification plate through the cover plate, thereby achieving the effect of better protection performance and prolonging the service life.

The utility model discloses an underground pipeline detecting instrument convenient to disassemble and assemble, which comprises a moving seat with pulleys and a detecting instrument body, the detecting instrument body is movably mounted on the outer wall of the upper side of the moving seat, a rotating assembly is arranged on the moving seat, one end of the rotating assembly is movably connected with the outer wall of the detecting instrument body, and a push rod is arranged on the moving seat. And a fastening rod is arranged between the push rod and the movable seat. According to the underground pipeline detecting instrument convenient to disassemble and assemble, the detecting instrument body is vertically placed in the groove formed in the upper side of the moving seat, the rotating assembly rotates downwards along with the downward gravity of the detecting instrument body, one end of the base rod rotates downwards, and the other end of the base rod is driven to rotate towards one side close to the detecting instrument body; and when the weight of the detecting instrument body completely falls into the groove, one end of the base rod rotates to the bottommost end, and the abutting head connected with the other end of the base rod is tightly attached to the outer wall of the detecting instrument body, so that foundation fixation of the detecting instrument body is achieved.

The utility model relates to the technical field of student chairs, and provides a multifunctional student chair which comprises a cushion body and an adjusting assembly. A storage box is driven to slide along an L-shaped block by pulling a U-shaped pull rod, school supplies can be quickly placed in a storage groove through a through groove after the storage box is moved out from the lower portion of a cushion body, then the U-shaped pull rod is reversely pushed to drive the storage box to slide along the L-shaped block, and when one side of the storage box is moved to touch a stop rod, the school supplies can be quickly placed in the storage groove through the through groove. The storage box cannot be continuously moved towards the direction again, so that the storage box can be placed below the cushion body again, and a gasket can support the lower end of the storage box, so that the supporting force provided by the L-shaped block to the storage box is reduced, namely, the situation that the storage box cannot be effectively supported by the L-shaped block, and the storage box cannot be effectively supported is prevented; the L-shaped blocks are prevented from being separated from the side faces of the supporting legs, and the problems that limited space cannot be effectively utilized conveniently, and the requirements of students for storage space and functionality are met are solved.

The utility model relates to the technical field of papermaking mesh production, and discloses a drying device for monofilament papermaking mesh production, which comprises a shell, a cavity is arranged in the middle of an inner cavity of the shell, a motor is fixedly mounted on the rear portion of the inner cavity of the cavity, and a rotating handle is fixedly connected onto an output shaft of the motor through a coupler. The front portion of the rotating handle is movably connected with a traction rod through a shaft, the bottom end of the traction rod is movably connected with a lifting rod through a shaft, the lifting rod is movably connected with the bottom of an inner cavity of the cavity in a sleeved mode, a connecting block is fixedly installed at the bottom end of the lifting rod, and the bottom of the connecting block is movably connected with a stretching roller through a shaft. The stretching roller is driven by the motor to stretch and shake the monofilament papermaking mesh, material shrinkage stress is counteracted, mesh hole blockage and deformation caused by monofilament winding or adhesion are avoided, surface roughness or protrusions are reduced through mesh piece tensioning, the flatness requirement is met, water in the material is migrated through shaking, the water content is reduced, and therefore the needed drying time is shortened. The device working efficiency is improved.