57results about How to "Play the role of limit support" patented technology

The invention provides a manual transportation car and relates to the field of transportation instruments. The manual transportation car comprises a base, a gantry, a hydraulic mechanism and a lifting mechanism, wherein travelling wheels are arranged at the base; the gantry is connected with the base; the hydraulic mechanism comprises a hydraulic cylinder, a handle and a pedal, wherein the handle and the pedal are arranged on the hydraulic cylinder; a movable rod is arranged at the upper end of the hydraulic cylinder; the handle and the pedal are used for controlling the movable rod to be lifted up and down; the bottom of the hydraulic cylinder is connected with the base; the lifting mechanism comprises a lifting frame, a limiting frame and a rotating shaft; the lifting frame is in slip connection with the gantry and is in driving connection with the movable rod; the limiting frame comprises a horizontal limiting rod and a longitudinal limiting rod; the two ends of the horizontal limiting rod are rotationally connected with the lifting frame; a locking bayonet is arranged at the top end of the longitudinal limiting rod; a hoop structure is also arranged on the longitudinal limiting rod; the rotating shaft is used for rotationally driving the limiting frame to rotate; a rotating wheel is arranged on the rotating shaft. The manual transportation car provided by the invention can be used for transporting goods quite conveniently and has the advantage of improving the work efficiency.

The embodiment of the invention provides electronic equipment. In the electronic equipment, a side face fingerprint identification device is in contact with the function key; a containing structure is arranged in the side face fingerprint identification device. A limiting assembly is arranged on one side, close to a fingerprint hole of a function key, in the electronic equipment; part of the area of the limiting assembly is inserted into the containing structure. When the side face fingerprint identification device is pressed, the side face fingerprint identification device can move in the moving space of the containing structure close to one side of the fingerprint hole of the function key. The displacement of the side face fingerprint recognition device is limited within a certain range, the functions of the side face fingerprint recognition device and the function key can be achieved at the same time, the side face fingerprint recognition device can be prevented from being separated from an originally designed position, and therefore the side face fingerprint recognition device can be well fixed to the electronic equipment.

The invention relates to an assembly type precast concrete member die. The assembly type precast concrete member die comprises a die mechanism and a bearing mechanism. According to the assembly type precast concrete member die, the die adopts an assembly structure, so that when a prefabricated member is molded and demoulded, the effect of rapidly disassembling and assembling the prefabricated member is achieved through a die split mechanism; meanwhile, in the disassembly and assembly process, the prefabricated member is not required to be carried and overturned, so that the prefabricated member is prevented from being damaged; and specifically, the die is composed of a first master die, a second master die, a first slave die and a second slave die, during form removal, firstly the first slave die and the second slave die are disassembled and assembled, and then one of the first master die or the second master die is removed, so that the demoulding of the prefabricated member is realized.

The invention discloses an attached safety operation protection platform for building construction. The attached safety operation protection platform comprises a base, supporting frames are symmetrically arranged at the top of the base, a baffle is fixedly arranged between the top ends of the supporting frames, lead screws are arranged in the supporting frames in a penetrating manner, and one endof each lead screw penetrates through the base and extends to the middle of a first convex gear; a second convex gear is meshed with one side of each first convex gear, a rotating shaft is arranged between the middles of the second convex gears in a penetrating manner, one end of the rotating shaft is connected with the output end of a motor, the motor is fixedly installed in the base, the outer sides of the lead screws are in threaded connection with lifting nuts, one side of each lifting nut is fixedly connected with a sliding block, and a lifting platform is fixedly arranged between the sliding blocks; and a buffer seat is arranged between the supporting frames, first buffer mechanisms and a second buffer mechanism are arranged between the buffer seat and the base, and the second buffermechanism is located between the first buffer mechanisms. The attached safety operation protection platform has the beneficial effects that the supporting performance of the buffer seat is greatly improved, and meanwhile, the stability performance of the lifting platform is improved, so that the lifting operation is safer and more reliable.

The invention discloses a self-reinforced anti-seepage outer wall, and belongs to the field of buildings. The self-reinforced anti-seepage outer wall comprises two waterproof layers and a concrete layer fixedly poured between the two waterproof layers. After self-solidification balls embedded in the concrete layer are used for a long time, the waterproofness of the outer wall is reduced, and at the moment, the outer wall is gradually degraded; when water seepage occurs, water vapor gradually enters a hollow through rod to gradually dissolve water-soluble columns, so that the limiting effect ofthe water-soluble columns on an elastic film is gradually weakened, at the moment, the elastic film is extruded and broken under the extrusion effect of water in a water storage self-expansion layer,and the remaining water-soluble columns are added and dissolved; and meanwhile, after the water-soluble columns are dissolved, the two ends of the hollow through rod are through, so that water makescontact with lime powder and solidifies the lime powder, the effect of fixed-point strength compensation of the water seepage position is achieved, the overall strength of the outer wall is effectively improved, large potential safety hazards caused by water seepage of the outer wall are not prone to happening, and safety is improved.

The invention discloses a detection test jittering platform and a jittering method thereof. The detection test jittering platform comprises a machine body and a vibrating table; a driving motor is arranged on the machine body; the driving motor is electrically connected with a control circuit; the driving motor is provided with a jittering output shaft upwards; a coupler is arranged below the vibrating table; the coupler is connected with the upper end of the jittering output shaft; the vibrating table is positioned above the jittering output shaft; and an elastic jittering limiting part is arranged between the machine body and the vibrating table. The invention can provide the jittering platform which aims at anti-jittering performance detection and is more accurate in control of vibration amplitude, and is very important for improving experiment or detection accuracy and reducing detection cost.

The invention discloses a cleaning and disinfecting device for a medical gynecological rollaway bed. The device comprises a vertical plate, wherein a first motor is fixedly connected to the bottom endin the vertical plate, a first lead screw is fixedly connected to an output end of the first motor, a moving plate is arranged on the side wall of the first lead screw, a water tank is fixedly connected to the upper surface of the moving plate, a fixed rack is fixedly connected to the surface of one side of the vertical plate, an empty groove is formed in the fixed rack, an electric air cylinderis fixedly connected to the inner wall of the empty groove, an electric push rod is arranged at an output end of the electric air cylinder, a bottom frame is fixedly connected to the upper surface ofthe fixed rack, a hydraulic cylinder is fixedly connected to the inner bottom wall of the bottom frame, a hydraulic rod is arranged at an output end of the hydraulic cylinder, a supporting column is fixedly connected to the upper end of the hydraulic rod, a third motor is fixedly connected to the left inner wall of the supporting column, and a second lead screw is fixedly connected to an output end of the third motor. As a spray head is moved up and down, multidirectional spraying is achieved. As a cleaning brush is moved all around at multiple angles, a cleaning effect of the device is improved.

The invention discloses a split-type cone drill bit, belongs to the technical field of geological drilling devices, and aims at solving the problems of the integrated connection of cone legs and coneseat of the cone drill bit, heavy integrated weight of a cone, high labor intensity of a worker when a single cone is replaced, and the inconvenient replacement of the cone. The cone drill bit comprises a cone seat, the upper ends of the cone seat is provided with three cone legs which are annularly distributed, and cones are rotatably connected with any cone leg; the cone legs are slidably connected with the cone seat, a placing groove is formed in the middle of the cone seat, first inner threads are arranged on the inner wall of the lower end of the placing groove, pressing units which are used for tightly pressing the cone legs are arranged in the middle of the cone seat, and connecting ends which are mutually matched to the first inner threads are connected with the lower ends of the pressing units.

The invention discloses a height-adjustable supporting platform. The platform comprises a base, a bearing table, a locking mechanism, a motor and a top supporting mechanism, driving wheels are arranged at the left side and the right side of the bottom of the base, a hydraulic cylinder is fixed to the upper end face of the base, and the lower end face of the bearing table penetrates through the topof a supporting frame to be in threaded connection with a fastener; and supporting columns are located at the inner side of a sleeve frame, the locking mechanism is fixed to the inner wall of the sleeve frame, the top supporting mechanism is fixed to the upper end face of a supporting plate, the supporting plate is fixed to the upper end face of a support plate through bolts, and the support plate is connected to the upper end face of the bearing table in a sliding manner. According to the height-adjustable supporting platform, after placement operation of equipment is completed, the bearingtable can move upwards along with the supporting frame, the supporting plate and a storage table move upwards along with the supporting frame, the height of the storage table can be adjusted conveniently according to needs, the supporting columns can be locked and fixed through the locking mechanism and clamping teeth after the height of the storage table is adjusted, and the bearing table is fixed; and the storage table is also fixed.

The invention discloses a gas detection device and a gas sampling device thereof, and relates to the technical field of gas detection, the gas detection device comprises a main body, a bottom plate is fixedly arranged at the bottom end in the main body, and a plurality of groups of lifting blocks are uniformly arranged at the edge position of the top of the bottom plate. Firstly, in the rotating process of a pressing rotating block, a telescopic rotating rod drives a clamping block to extend into a clamping groove of one lifting block, then the pressing rotating block is pressed, then the telescopic rotating rod drives a first toothed plate to ascend, and the telescopic rotating rod ascends and drives the lifting blocks and a vacuum sampling pipe to ascend through the clamping block at the same time; wherein the first toothed plate ascends to drive the second toothed plate and the ejector rod to descend through the gear, and the vacuum sampling pipe ascends and extends out of the upper part of the main body for a certain distance while the ejector rod descends, so that the ejector rod and the ejector pin extrude each other, the vacuum sampling pipe is opened for gas sampling, and the unsampled vacuum sampling pipe can be conveniently and quickly replaced; and the gas sampling process is more thorough.

The invention relates to an assembled concrete prefabricated component mold, including a mold mechanism and a supporting mechanism; in the invention, the mold adopts an assembled structure, so that when the prefabricated component is molded and demolded, the mold mechanism can be disassembled to achieve convenient disassembly and assembly of the prefabricated At the same time, during the disassembly process, there is no need to carry and flip the prefabricated components, so as to prevent the damage of the prefabricated components. Specifically, the mold consists of No. 1 master mold, No. 2 master mold, No. 1 slave mold and No. 2 Assembling the slave molds, when removing the molds, first disassemble the No. 1 slave mold and the No. 2 slave mold, and then remove one of the No. 1 master mold or No. 2 master mold, so that the demoulding of the prefabricated component can be realized.

The invention discloses an oil filter capable of preventing oil leakage during dismounting and mounting. The oil filter capable of preventing oil leakage during dismounting and mounting comprises a shell, a seal groove is formed in the inner top of the shell, a seal ring is arranged in the seal groove, a metal clamping plate is arranged on one side of the seal groove, multiple dirty oil inlets areformed between the seal groove and the metal clamping plate, a clean oil outlet is formed in the middle of the metal clamping plate, a center pipe is arranged in the clean oil outlet, filter paper isarranged on the outer side of the centre pipe, a check valve is arranged on the bottom of the filer paper, a mounting part is arranged on the bottom of the shell, cavities are symmetrically formed inthe mounting part, worm gears are arranged in the cavities, the centers of the worm gears are connected with the cavities through center shafts, one sides of the worm gears are provided with connecting blocks, the ends, away from the worm gears, of the connecting blocks are provided with oil blocking plates, worms are arranged on one sides of the worm gears in an engaged manner, and one ends of the worms are provided with second convex gears in a penetrating manner. The oil filter has the beneficial effects that oil leakage of the oil filter is blocked, and the oil leakage during dismountingof the oil filter can be avoided.

The invention belongs to the technical field of automobile production, and particularly relates to a metal plate cutting machine for automobile production. The problems that when a metal plate is fixed through an existing automobile metal plate cutting machine, the metal plate is severely damaged, and meanwhile, the fixed metal plate is prone to displacement during cutting due to single-point fixing are solved. The metal plate cutting machine comprises a workbench. Two fixing supports are arranged on the outer wall of the top of the workbench. Four hydraulic rods are arranged on the inner wallof the top of each fixing support. The outer walls of the bottoms of two hydraulic rods located on the same horizontal line are provided with one adjusting plate. The metal plate cutting machine is provided with the hydraulic rods, the adjusting plates and fixing rods, when the metal plate is fixed, the metal plate is fixed through the fixing rods arranged in a staggered mode, the area of connection points is increased, the fixing soundness is improved, meanwhile, in the fixing process, air passing holes of the fixing rods are vacuumed by a suction pump, the metal plate is further fixed through suction force, and damage to the metal plate is relieved while the fixing effect is improved.

The invention discloses a working table for manufacturing clothes. The working table comprises a working platform; first support frames are fixedly arranged on the two sides of the working platform; one end of each of the first support frames penetrates through a second support frame and extends into the second support frame; an accommodating groove is formed in the working platform; chip retaining plates are symmetrically arranged at the bottom of the accommodating groove; one end of each of the chip retaining plates is movably connected with the inner wall of the accommodating groove througha hinge; connecting blocks are fixedly arranged at the bottoms of the chip retaining plates; movable frames are movably connected with the connecting blocks; the end, far away from each of the connecting blocks, of the movable frame is movably connected with a sliding block; an adjusting seat is arranged on one side of the sliding block and is fixedly connected with the corresponding first support frame; a cavity is formed in the adjusting seat; a motor is fixedly mounted on the top of the interior of the cavity; the output end of the motor is connected with a rotary shaft; a spiral sliding chute is formed in the outer side of the rotary shaft; a sliding rod is in sliding fit with one side of the spiral sliding chute; a sliding rail is arranged on one side of the cavity; and matched movable blocks are arranged in the sliding rail. The working table has the following benefits: recycling of the chip is facilitated, the working strength of a worker is lowered, and the working efficiencyis improved.

The invention discloses an efficient dedusting, cooling and air-drying integrated equipment for cable processing. The equipment comprises a dedusting mechanism, a primary cooling mechanism, a water storage tank and a limiting frame, a second bearing plate is arranged on the right side of a first bearing plate, the primary cooling mechanism penetrates through the top of a bearing table, and the water storage tank is fixed to the top of the bearing table in a penetrating mode. A second fixed pulley is arranged on the upper side of the water storage tank, a third fixed pulley is rotatably connected into the water storage tank, a third bearing plate is arranged on the right side of the water storage tank, a fourth fixed pulley is rotatably connected between the third bearing plate, and a fan is arranged on the right side between the fixing sleeve and the limiting frame. And the torsion mechanism is arranged on the limiting frame. According to the efficient dedusting, cooling and air-dryingintegrated equipment for cable processing, water needs to be introduced into the water storage tank before the equipment is used, in the process that a cable is wound around the third fixed pulley, water in the water storage tank can conduct secondary cooling treatment on the cable, and the cooling effect is conveniently enhanced.

The invention relates to a fuel assembly with a compact structure, a reactor and a mobile carrier, the fuel assembly with the compact structure comprises a nuclear fixing plate, a plurality of fuel rods, a first guide plate, support rings and throttling fins, the throttling fins are fixed on the outer side walls of one ends of the fuel rods, the plurality of fuel rods are respectively sleeved with the support rings, the first guide plate is arranged on the plurality of fuel rods in a penetrating manner and is supported on the supporting ring, and the other ends of the fuel rods are assembled and fixed on the nuclear fixing plate; and the first guide plate and the support ring are respectively made of a reactor core coolant. The first guide plate restrains and limits the middle of the fuel rod, the first guide plate located in the middle of the fuel rod is limited and supported through the supporting ring, and the first guide plate and the supporting ring are made of a reactor core coolant, are in a solid state at normal temperature to achieve a guide function and are melted before operation to avoid influence on flowing of the reactor core coolant; and the influence on the flow of a reactor core coolant is further reduced, and meanwhile, the adverse influence of a structural material on neutron performance is avoided.

The invention discloses a glass teacup facilitating water drinking and having a cleaning function. The glass teacup comprises a teacup base, a glass cup body is arranged on the teacup base, a handle is arranged on one side of the glass cup body, the glass cup body comprises an outer glass layer and an inner glass layer, a first cavity is formed between the outer glass layer and the inner glass layer, a water partition plate is arranged in the glass cup body, a second cavity is formed between the water partition plate and the bottom of the glass cup body, a moving mechanism is arranged in the second cavity and comprises a first sleeve, the first sleeve is fixed into the second cavity, a connecting plate is fixedly arranged on one side of the first sleeve, a movable column is arranged in thefirst sleeve in a penetrating mode, an inserting groove is formed in the end, away from the first sleeve, of the movable column, a gear is arranged in the inserting groove, and the middle of the gearis movably connected with the movable column through a central shaft. The glass teacup has the beneficial effects that the glass cup is prevented from tilting by a large margin, and the needs of people are met.

The invention belongs to the technical field of track drive, and particularly relates to a unidirectionally-sliding anti-winding track drive wheel which comprises an inclined groove, a drive wheel ring, sharp drive angles, stoppers, clamping holes, a gear, male blocks and the like. The drive wheel ring is clamped into a track clamping groove through the sharp drive angles to drive a track to operate, the stoppers are mounted in grooves formed by the adjacent sharp drive angles and are held in the grooves through frictional force of the stoppers and centrifugal force, so that the drive sharp angles on the drive wheel cannot be wound by winding objects through the stoppers, failure of a track wheel is avoided, the stoppers can be pressed into the grooves between the adjacent sharp drive angles when a track contacts with the sharp drive angles, the track is smoothly driven by the sharp drive angles, the pressed out stoppers drive the male blocks and female blocks to slide out from the wheel grooves through stopper-rack transmission, the slide-out male blocks and female blocks can intervene with the obliquely falling stoppers, the male blocks are inserted into the clamping holes, and the stoppers provide limiting and supporting.

The invention discloses RCC-based access control machine equipment with a face recognition and door opening function, and particularly relates to the technical field of intelligent access control machines. The RCC-based access control machine equipment comprises a box body, wherein a single chip microcomputer, a sensing module, a face recognition module, an information storage module, a voice module, a WIFI module and an alarm module are fixedly arranged in the box body, the sensing module is used for detecting whether a person is in front of an access control machine and sending a signal to the single chip microcomputer. According to the RCC-based access control machine equipment, a baffle is arranged on the front side of the box body, when a person walks to the front of the baffle, an infrared sensor on the baffle senses the person and sends a signal to the single chip microcomputer, the single chip microcomputer controls a motor to rotate, a gear on the motor is meshed with teeth on a first sliding block, and therefore the first sliding block, the baffle and a second sliding block are driven to move upwards, thus face recognition of the person is facilitated, or, ID card swiping and password unlocking are used, and a camera, a loudspeaker, a display screen, an ID card inductor and password keys can be effectively prevented from being damaged through the arrangement of the baffle.

The invention discloses an ironing system for garment processing. The ironing system comprises a tensioning frame, the tensioning frame comprises a transverse tensioning frame and vertical tensioning frames, the transverse tensioning frame is fixed between the vertical tensioning frames, a first fixing groove and a second fixing groove are correspondingly formed in one side of the transverse tensioning frame and one side of each vertical tensioning frame, and garment is fixedly arranged in the tensioning frame. A limiting rail is arranged in a first adjusting cavity (10), the first sliding block is in sliding connection with the limiting rail, the end, away from a motor (14), of a lead screw (12) penetrates through a bearing and extends into the bearing, and the bearing is fixed into the first adjusting cavity (10); and the garment is fixed to the bottom of a pressing plate, a first reset spring sleeves the movable rod, and one end of the first reset spring is fixedly connected with the pressing plate. The ironing system for garment processing has the beneficial effects that ironing dead angles are avoided, the ironing effect is greatly improved, the working efficiency is high, and labor is saved.

The invention belongs to the technical field of oil exploitation, and particularly relates to an oil well overground security device for oil exploitation. According to an existing oil exploitation device, an oil well is placed on the ground, in the exploitation process, if oil blows out, oil is sprayed to the ground through the oil well, a large amount of oil is wasted, and local environmental contamination is caused. According to the technical scheme, the oil well overground security device comprises a protective frame, four connecting plates are fixedly connected to the outer wall of the protective frame, the outer walls of the opposite sides of the every two adjacent connecting plates are each fixedly connected with a fixing rod, and the outer walls of every two adjacent fixing rods arefixedly connected with the same connecting frame. By arranging the protective frame, a second hydraulic cylinder and a stop plate, when the security device is installed, the protective frame is installed at the outer side of the oil well, when the oil well blows out, the second hydraulic cylinder is adjusted to drive the stop plate to stop sprayed oil, and therefore the security effect is achieved.

The invention relates to the technical field of rotary compensators, and particularly discloses an anti-explosion high-pressure-resistant self-sealing rotary compensator which comprises an outer pipe and an inner pipe arranged in the outer pipe in a sleeved mode, a baffle is arranged on the end face of the outer pipe, and a first bearing is arranged between one side of the surface of the inner pipe and one side of the inner wall of the outer pipe. A connecting pipe is arranged on the end face of the inner pipe, a second bearing is arranged between the baffle and the connecting pipe, and a limiting assembly is arranged between the surface of the inner pipe and the inner wall of the outer pipe. The baffle is arranged on the surface of the outer pipe, the inner pipe is limited and fixed in cooperation with the first bearing and the second bearing, meanwhile, it is guaranteed that the inner pipe can rotate, the limiting assembly arranged between the inner pipe and the outer pipe is used, and the outer wall of the inner pipe can be supported through cooperation of a spring and an upper limiting rod; and after the inner pipe is thermally expanded, the anti-pressure capability of the inner pipe can be enhanced by utilizing the elastic force of the spring.

The present invention belongs to the technical field of drug analysis, especially an efficient instrument for drug analysis. The following scheme is proposed, including a workbench, an extraction tube and a negative pressure adsorption tube. The inner wall of the extraction tube near the bottom end is fixedly connected with a rod, and the outer walls of the multiple installation rods are fixedly connected with the same extruded rod. The present invention is provided with a return spring, a collision rod, a side plate and an extrusion plate, and when the medicine is extracted, the hydraulic cylinder is adjusted to drive the extrusion plate on the extrusion plate to snap into between the bonding pieces above the side plate, thereby The extrusion plate is connected to the side plate, and the extrusion plate squeezes the side plate, so that the extraction tube is pressed down to realize the crushing operation of the drug. During the process of pressing down the extraction tube, the return spring is stretched, and the extraction tube is pressed down After operation, take it out, and the return spring will drive the interference rod to reset, which improves the convenience of the extraction tube for drug extraction, without manual operation, improves the speed of drug extraction, and improves the overall efficiency of drug analysis.

The invention relates to the technical field of circuit board labeling auxiliary equipment, in particular to a labeling auxiliary device capable of automatically labeling and rolling for circuit board production. The device comprises a label frame, wherein a recycling turntable is rotatably connected to the inside of the label frame through a shaft, transmission connecting rods are movably connected to the front and rear surfaces of the recycling turntable, the right side face of the transmission connecting rod is rotatably connected with a crank connecting rod, the right side face of the crank connecting rod is movably connected with a directional plate, a compression head is inserted into the lower end of the directional plate, and a driving gear drives a T-shaped linkage rod to do up-down reciprocating clearance motion, so that the T-shaped linkage rod drives a delay compression rod at the lower end to move along with the T-shaped linkage rod. A roller push plate is driven to drive the labeling pressing plate below the roller push plate to press a label, so that labeling movement is performed, and meanwhile, when the labeling pressing plate reciprocates up and down, continuous and uninterrupted labeling movement of the labeling device is facilitated, and therefore, the working efficiency of the labeling device can be well improved.

The invention relates to the technical field of switch cabinets, and particularly discloses an intelligent low-voltage switch cabinet which comprises a box body, a storage device and a heat dissipation system, the box body is rectangular, the box body is divided into an upper box body and a lower box body, the upper box body and the lower box body are fixedly connected into a whole through a partition plate, and a turnover drawer is placed in the upper box body; switch assemblies and electrical components are placed in the turnover drawers, the turnover drawers are arranged in a bilateral symmetry mode along the center of the box body, a storage device and a heat dissipation system are arranged in the lower box body, overhaul tools are placed in the storage device, and the heat dissipation system is communicated with the upper box body and dissipates heat generated by the electrical components in the upper box body. The invention aims to solve the problems that a drawer in a traditional switch cabinet cannot be pulled out, maintenance is inconvenient, and heat cannot be discharged in time.

The invention discloses a load device for debugging the power of an automobile engine, which comprises a base, a support rod is mounted at the top of the base, a load device body is mounted at the top end of the support rod, connecting seats are mounted on both sides of the base, telescopic rods are arranged at the tops of the connecting seats, and the telescopic rods are connected with the support rod. And the top end of the telescopic rod is connected with a rear box body, connecting plates are installed on the front face and the back face of the base correspondingly, and threaded sleeves are arranged on the tops of the connecting plates. Through the arrangement of the threaded sleeve and the threaded rod, the hand crank can be rotated to drive the threaded rod to rotate, the hand crank is connected with the box body through the connecting base, and therefore when the hand crank is rotated to control the threaded rod to ascend and descend in the threaded sleeve, the box body is driven to ascend and descend; the lifting of the box body is supported in an auxiliary mode, the load device body is provided with the supporting rods, and the supporting rods play a role in limiting and supporting the load device body.