82results about How to "Effective limit" patented technology

The invention provides welding equipment for machining engineering machinery parts, and relates to the technical field of mechanical welding, the welding equipment comprises a bottom plate, and the top of the bottom plate is fixedly connected with a power box. A mechanical welding arm is adjusted by arranging a first motor, a driving synchronous wheel, a threaded sleeve and other parts, meanwhile, angle adjustment is conducted on a rotating box through a rotating motor, a belt wheel and other parts, an adjusting motor is started, the adjusting motor rotates to drive a worm to rotate, and therefore a worm wheel is driven to rotate; a worm wheel rotates to drive a positioning rod to rotate, a clamping box rotates through a limiting ring and a ball, the horizontal angle of an accessory is adjusted, an electric push rod is started, a rotary disc is driven to rotate through the electric push rod, and then a pull strip is driven to pull a clamping block to efficiently clamp and fix the accessory, so that the efficient fixing effect is achieved; and the welding efficiency is improved.

The utility model discloses a ceramic product sintering device which comprises a sintering box, a box cover and a heating pipe and further comprises a swing assembly and a pressure applying assembly, and the swing assembly comprises a partition plate detachably installed at the bottom end in the sintering box and a swing disc arranged in the sintering box and located above the partition plate. The device further comprises a driving disc rotationally arranged at the top of the sintering box, a universal sleeve corresponding to the swing disc in position is arranged between the swing disc and the partition plate, a universal ball is installed in the universal sleeve in a rolling mode, rectangular springs are annularly arranged at the position, away from the universal sleeve, between the swing disc and the partition plate at equal intervals, and a gear ring is fixedly installed in the middle of the top end of the swing disc. Through the swinging assembly, the inner wall of the ceramic product can be uniformly heated in a manner of performing multi-angle swinging on the ceramic product in the sintering process, so that the overall quality of the ceramic product is ensured; and through the pressure applying assembly, the ceramic product in the swinging process can be effectively fixed and limited, and the possibility that the ceramic product topples over is reduced.

According to the semiconductor product processing equipment and the mist discharging system, the mist discharging fan is connected with the rack through the damping mechanism, vibration of the mist discharging fan can be effectively prevented from being transmitted to the rack, the machining precision can be improved, the damping mechanism can adopt different structures according to needs, and when a connector is adopted, the connector is connected with the mist discharging fan through the damping mechanism. The connector is connected to the top of the first supporting rod through the first damping connecting base and connected to the bottom of the second supporting rod of the rack through the second damping connecting base, the second supporting rod can effectively limit the connector, and the problem that the connector topples due to the fact that the mist discharging fan is arranged on the first side of the connector is solved; shear force borne by bolts for connecting the first and second damping connecting seats with the first and second supporting rods is reduced, and the structural stability and safety of the damping structure are effectively guaranteed. When the bracket is adopted, the structure is simple, and a two-stage damping structure is adopted, so that the vibration of the fog exhaust fan can be isolated from the rack to the greatest extent, and the influence on the main shaft is avoided.

This invention discloses a welding clamping mechanism for metal parts of an elevator car, belonging to the field of elevator car metal part welding technology. It comprises a clamping mechanism one and a clamping mechanism two assembled on the outer surface side of the clamping mechanism one, with a welding robot arm mounted on the rear side of the outer surface of the clamping mechanism one. It includes a support frame installed at the middle of the upper surface of the clamping mechanism one, with a base plate connected to the upper surface of the support frame. This elevator car metal part welding clamping mechanism, with clamping mechanism one and clamping mechanism two assembled sequentially, facilitates alternating welding, saving material loading time. Side clamps, positioning components one and two limit and compress side rods one and two, improving the stability of the base plate during welding and preventing displacement. In conjunction with a heat-absorbing mechanism on the support frame, it performs heat absorption and cooling treatment based on the weld point position of the base plate, and works synchronously with a gas cooling system that can be linked.

The utility model discloses intelligent building energy consumption monitoring equipment convenient to install, and belongs to the field of energy consumption monitoring equipment. An intelligent building energy consumption monitoring device convenient to install comprises a substrate and further comprises a plurality of installation holes formed in the substrate; the hanging nails are fixedly arranged on the inner side of the base plate; the equipment box is arranged on the base plate in a sliding manner; the two groups of placement grooves are symmetrically formed in the base plate; the base plate is detachably connected to the interior of the placement groove; the hanging grooves are formed in the equipment box, and the hanging grooves correspond to the hanging nails; according to the utility model, the stability of the equipment box is effectively improved, and the equipment box is prevented from moving up and down when the energy consumption monitoring device in the equipment box is installed.

The utility model discloses a narrow frame folding door section bar with a pressing line, which comprises a first narrow frame section bar, the lower end of the left side of the first narrow frame section bar is provided with a multi-tenon-and-mortise clamping groove, the surface of the multi-tenon-and-mortise clamping groove is clamped with a glass pressing line section bar, and the left end of the top of the glass pressing line section bar is adhered with a first glass structure adhesive tape. Through the arrangement of the first narrow frame section bar, the second narrow frame section bar, the glass pressing line section bar and the narrow frame compensation section bar, a good supporting frame can be formed around the first glass plate and the second glass plate; the first glass plate and the glass pressing line profile can be effectively bonded and fixed, the second glass plate and the narrow frame compensation profile can be effectively bonded and fixed, and the first narrow frame profile and the glass pressing line profile can be effectively clamped and fixed in a multi-tenon-and-mortise mode through the arrangement of the multi-tenon-and-mortise clamping groove.

The utility model relates to the technical field of photoelectric communication, in particular to a QSFP (Quad Small Form-factor Pluggable) active optical cable assembly, which comprises a shell, a first mounting block and a second mounting block are symmetrically arranged on two sides of the shell respectively, one side of each of the first mounting block and the second mounting block is movably connected with a cap, a connector is movably connected in the first mounting block, and the connector is movably connected in the second mounting block. A QSFP connector is fixedly connected to one side of the connector, a limiting block is fixedly connected to the side, close to the connector, in the first mounting block, a silica gel pad is arranged in the first mounting block between the limiting block and the cap, and a pressing mechanism is rotationally connected to the interior of the shell; according to the device, the movement and swing of the connector, the wire core, the QSFP connector and the wire are effectively limited through the pressing mechanism, so that the stability of the active optical cable is improved, signal interference or connection faults possibly caused by looseness or swing are reduced, the possibility of faults is reduced, and the service life of equipment is prolonged.

The utility model discloses an intelligent cable path detection and identification instrument, and belongs to the technical field of cable comprehensive detectors, the intelligent cable path detection and identification instrument comprises an installation box and a detection ring, a wind-up roller is transversely installed in the installation box in a sliding rotation mode, and a connecting line wound around the outer wall of the wind-up roller extends to the outer side of the installation box in a sliding mode; a wire clamping groove is formed in the side wall of the mounting box, and an annular groove is formed in the top surface of the mounting box; two strip-shaped grooves are symmetrically formed in the outer wall of the mounting box, the two strip-shaped grooves are located in the two sides of the wire clamping groove correspondingly, sliding blocks are slidably connected to the interiors of the strip-shaped grooves, L-shaped clamping plates are fixedly mounted on the side walls of the sliding blocks, and the two L-shaped clamping plates both extend to the positions above the wire clamping groove; a push spring is fixedly installed on one side of the inner wall of the strip-shaped groove, and the tail end of the push spring is fixedly connected with the side wall of the sliding block. Compared with the prior art, the device can effectively store connecting wires and detection rings in the intelligent cable path detection and identification instrument.

The utility model discloses an auxiliary device for musical instrument teaching, which belongs to the technical field of musical instrument teaching, and comprises a placing plate, the outer wall of the placing plate is rotatably connected with an electric telescopic rod, the bottom wall of the electric telescopic rod is provided with a base, and the placing plate is provided with a page turning structure; the page turning structure comprises a balance plate arranged on the placing plate, a first motor is installed on the side, away from the placing plate, of the balance plate, a page turning block is installed at the output end of the first motor, and the outer wall of the page turning block is not connected with the top wall of the placing plate. By arranging the page turning structure, a student treads a switch to start a first motor and a second motor when needing to turn pages in the playing process, the first motor drives a page turning block to rotate, and the second motor drives a rotating plate to rotate leftwards to turn pages of a music score; the problems that the fluency and continuity of playing are affected and the learning efficiency of the students is reduced due to the fact that the students turn pages distracted during playing are effectively avoided.

The utility model relates to mineral processing technical field discloses a quartz sand high -efficient flotation device of intelligent monitoring, including positioner, auxiliary mechanism and organism, the positioner is located inside the organism, the positioner includes protective housing, the upper end fixed connection of protective housing limits the block, the inner wall sliding connection of protective housing has the inclined plate, the surface fixed connection of inclined plate has the limit post, the upper end fixed connection of inclined plate has the baffle, the outside fixed connection of baffle has the pull ring, the side of protective housing is installed and has the storage box, the utility model discloses through setting positioner, the operator pulls the pull ring, and the baffle of moving drives the inclined plate to slide out the storage box, and the operator rotates the limit block to cancel the limit of the limit block to the above storage box, and the whole operation process is simple and efficient, and the operator can complete the installation and disassembly of PH sensor quickly, improves work efficiency, and reduced the complexity of operation.

The utility model discloses a vehicle-mounted PCB (Printed Circuit Board) warped horizontal straightening device, which relates to the technical field of PCB processing and comprises an object main body, the bottom of the object main body is fixedly connected with a mounting block, and one side of the mounting block is provided with a mounting opening. According to the utility model, when a user needs to use, install, clamp and prevent the PCB from warping, the user needs to pull an arranged first limiting plate through a telescopic rod, then the user needs to pull up a clamping rod, then the user pushes an extended push plate back and forth on an arranged limiting ring, and after the user pushes the extended push plate, the user can push the extended push plate back and forth, so that the user can conveniently use the PCB. A clamping rod is inserted into different clamping openings formed in an extension push plate, so that a user can pull out a second limiting plate from a mounting frame; and then a user needs to place the PCB on the object main body and push the first limiting plate and the arranged second limiting plate again, so that the vehicle-mounted PCB can be efficiently mounted, limited and reversely warped.

The utility model discloses a rolling gas uniformizing device, which relates to the technical field of gas mixing and is technically characterized by comprising an induction placing rack, the rotary gas mixing mechanism is mounted and connected to the inner side of the upper end of the induction placement rack; the gas cylinder device has the technical effects that the positioning lifting auxiliary mechanism is arranged, so that the position height can be changed in a lifting mode for rolling assistance, a telescopic rod of an electric telescopic cylinder of the positioning lifting auxiliary mechanism can change the position of a movable pressing plate when stretching out and drawing back, and the gas cylinder device is convenient to use. The movable pressing plate can drive the positioning sleeve rod to conduct positioning lifting, the movable pressing plate passes through the area of the arc-shaped groove of the cylinder body, so that the gas cylinder body can be effectively limited, the movable pressing plate makes rolling contact with the gas cylinder body through the rolling ball, rolling positioning can be assisted, it is effectively guaranteed that the gas cylinder body cannot shake in the rotating process, and the gas cylinder body is prevented from rotating. Therefore, the gas cylinder body is more stable and more uniform in gas mixing during rotating gas mixing.

The utility model relates to the technical field of underground coal mine pipeline installation, in particular to a traction structure for underground pipeline installation. The bracket is mounted on the traction side of the winch body on the mounting base plate, and the clamping and limiting mechanism is mounted on the bracket, so that an underground pipeline can be limited under the clamping action of a clamping plate and a guide wheel during traction transfer in the mounting process, and a traction rope is prevented from swinging back and forth on the surface of a winding drum on the winch body; according to the hoisting machine, the hoisting rope is arranged on the hoisting machine body, abrasion of the hoisting rope is reduced, the risk that the hoisting rope on the hoisting machine body breaks and loses efficacy in the long-time using process is avoided, and meanwhile, the quick-mounting mechanism is jointly mounted between the base on the lower side of the hoisting machine body and the mounting groove in the mounting base plate; and the limiting columns are rapidly inserted into the limiting holes, so that rapid limiting of the winch body on the mounting base plate is achieved, and efficient traction of an underground pipeline during mounting in a coal mine tunnel is facilitated.

The utility model discloses a temporary fixing clamp for underwater maintenance of a marine propeller, which comprises a double-handle grip, a Z-axis hollow pipe fixedly welded on the outer wall of one side of the double-handle grip, a vertical pipe slidably mounted in the Z-axis hollow pipe, and an expansion type holding device I mounted at the lower end of the Z-axis hollow pipe and used for limiting the position of the vertical pipe, a second expansion type holding device is installed at the lower end of the vertical pipe, a transverse pipe is installed in the second expansion type holding device, and a multi-claw type clamp is installed at one end of the transverse pipe. As a worker stands at the tail end of the deck, holds the double-handle grip and controls the sinking and position adjustment of the transverse pipe at the lower end of the vertical pipe and the multi-claw fixture, the uncertainty caused by a complex environment in which a diver faces during underwater operation is reduced, the worker can perform fine adjustment by using the double-handle grip in a safe ship environment, and the working efficiency is improved. It is ensured that the multi-claw type clamp can be accurately close to the fixed position of the propeller, and a solid foundation is laid for follow-up maintenance work.

The utility model discloses a kind of plastic product stamping device with limiting function, it is related to stamping equipment technical field, the plastic product stamping device with limiting function, including equipment frame, the inner wall top of equipment frame is fixedly installed with electric cylinder, the output end of electric cylinder is fixedly installed with stamping plate, the lower fixed mounting of stamping plate is with upper die, the inner wall bottom of equipment frame is fixedly installed with lower die, still including limiting device and centering device;Among them, the limiting device includes lifting rod, fixed plate, limiting plate, fixed block, connecting rod and U-shaped plate, the plastic product stamping device with limiting function can effectively limit and fix different sizes of raw materials, improve the applicability and work efficiency of equipment, and under the action of No. 1 spring, realize the repeated use of automatic limiting, without additional operation by staff, further improve the stamping efficiency of equipment.

The utility model discloses a kind of roller replacement device, belong to film production technical field, including sliding block, positioning assembly and hoist subassembly, two The sliding block is symmetrically slidably arranged in the both sides of rack, and the roller is horizontally arranged below the sliding block, the both ends of the roller are inserted into sleeve, and the end of the roller is attached to the inner wall of sleeve, two The sleeve is fixedly connected on the positioning plate corresponding thereto respectively, and two The positioning plate is respectively arranged below the sliding block corresponding thereto;The positioning assembly is used for making two positioning plate slide towards each other;The hoist subassembly is used for making roller vertically rise;The utility model can effectively improve the stability of roller in hoisting process.

The utility model provides a kind of oscillation device for blood protein detection, it is related to blood protein detection field, including oscillation unit, including the oscillation generation box for generating oscillation movement, the cover fixedly connected in the top of the oscillation generation box, the spring fixedly connected in the bottom of the inner chamber of the cover four around, the oscillation platform fixedly connected in the top of the spring, and the tube groove for limiting placement test tube being opened in the top of the oscillation platform;The utility model is through the design of limiting component, especially the cooperation of screw rod, pressing plate, pad and rubber pad, can effectively close and limit the top of test tube, prevent blood leakage due to oscillation force and liquid inertia in the process of oscillation, to avoid sample waste and experimental environment pollution, by the cooperation of the oscillation generation box in oscillation unit, oscillation platform and spring, can make oscillation more stable and uniform, help to improve the mixing effect of blood sample, ensure the accuracy and reliability of detection result.

The utility model relates to a pull head stabilizing device and stranding equipment for splitting conductor strand blocks, which comprises a support assembly and a guide wheel assembly, the guide wheel assembly comprises a first guide wheel support, a first profiling guide wheel, a second guide wheel support, a second profiling guide wheel and driving equipment, and when the first profiling guide wheel and the second profiling guide wheel approach each other, the first profiling guide wheel and the second profiling guide wheel approach each other. The rotating axes of the first profiling guide wheel and the second profiling guide wheel are parallel and located on the two sides of the fan-shaped stranded wire harness respectively, the first wheel groove and the second wheel groove guide the fan-shaped stranded wire harness to advance and limit rotation of the fan-shaped stranded wire harness, and when the first profiling guide wheel and the second profiling guide wheel are away from each other, the first wheel groove and the second wheel groove allow the fan-shaped stranded wire harness to advance and rotate. According to the utility model, attitude positioning can be carried out on moving fan-shaped stranded wire harnesses, so that the positions of fan-shaped strand blocks can be always kept consistent when the fan-shaped strand blocks pass through each layer of stranding cage, and the fan-shaped strand blocks cannot rotate. In this way, the manual intervention frequency is greatly reduced, material scrapping caused by posture dislocation can be reduced, and the qualified rate of the puller procedure is remarkably increased.

This utility model discloses an anti-tilting plate heat exchanger support structure, relating to the field of plate heat exchanger assembly brackets. It includes a fixed clamping plate, with two mounting plates installed at one end. A lower support is welded to the bottom end of the lower mounting plate, and a first tilting support is welded to the bottom end of the upper mounting plate. The lower support and the first tilting support are arranged in a "V" shape. A guide rail mechanism is fixedly installed at the top and bottom of the fixed clamping plate, and a frame support mechanism is installed at the other end of the guide rail mechanism. A sliding clamping plate for pressing the heat exchanger pads is slidably installed on the guide rail mechanism. By setting the frame support mechanism, this utility model can effectively limit the upper slide rail, and when the heat exchanger pads are slid in, it can effectively limit the top and bottom of the heat exchanger pads simultaneously, preventing misalignment during installation.

The utility model relates to the technical field of cable take-up and pay-off, in particular to a cable take-up and pay-off device capable of automatically adjusting tension, which comprises a fixing frame, a plurality of universal wheels are mounted at the bottom of the fixing frame, symmetrically distributed pull rods are fixedly connected to the top of the fixing frame, and symmetrically distributed guide groove plates are fixedly connected to the top of the fixing frame. The guide groove plates jointly support a discharging rod. Through the arrangement of the electric sliding rail, the tension sensor, the fixing shaft, the tensioning wheel, the fixing block and the full-automatic tension control box, the tension of the cable can be monitored and accurately controlled in real time, it is ensured that proper tension can be kept under any working condition, frequent manual intervention is not needed, the cable laying and recycling speed is greatly increased, and the working efficiency is improved. The operation time is reduced, and the cable damage caused by excessive stretching or loosening can be effectively avoided, so that the quality of the cable is ensured, and the service life of the cable is prolonged.

This utility model provides a large-angle slider demolding mechanism for an electric vehicle instrument cover mold, including a lower mold base, an inner mold core, a supporting side frame, a forming slider, and a demolding top block. The inner mold core is located at the top of the lower mold base, and the supporting side frame is located on the side of the lower mold base. A disengagement cavity is opened inside the supporting side frame, and the forming slider is slidably arranged inside the disengagement cavity. A forming end face is provided on one side of the forming slider. In this utility model, the supporting side frame is installed on the side of the lower mold base by a fixed arm. The forming slider is slidably arranged in the disengagement cavity inside the supporting side frame. The forming end face at the front end of the forming slider can be pressed against the inner mold core, thereby cooperating with the inner mold core to form the instrument cover forming cavity. During demolding, the forming slider on the inner side of the supporting side frame can slide outward, and the forming end face and the inner mold core can be completely separated. Then, the injection molded part at the top of the inner mold core is ejected by the demolding top block to achieve demolding.

The utility model relates to the technical field of lens transportation equipment, in particular to an optical lens transportation box which comprises a box body, an air pump is installed on the outer wall of the top end of the box body, an inclined hole is formed in the outer wall of one side of the box body, sliding rails are arranged on the outer walls of the two sides of the inclined hole, and sliding plates are connected to the inner walls of the sliding rails in a sliding mode. A motor is installed on the outer wall of the other side of the top end of the box body, one end of an output shaft of the motor is connected with a threaded rod through a coupler, the outer wall of the threaded rod is connected with air guide plates through threads, the air guide plates are slidably connected to the inner wall of the box body, and magnetic blocks are fixedly connected to the inner walls of the two sides of the other side of the box body. The optical lens conveying device is not prone to loosening and convenient to operate through motor operation, movement of the lens storage structure is not affected when the air guide plate is covered, the supporting and buffering effect in the horizontal direction is guaranteed, the conveying safety is guaranteed, motor driving operation is convenient, not prone to loosening and the conveying efficiency of optical lenses is improved.

The utility model discloses a QQ sugar folding machine of smooth feeding relates to QQ sugar folding machine technical field, including machine body, mounting panel and lower winding film axle pole, the hinge is hinged with maintenance door through hinge outside the machine body, the machine body bottom is connected with control cabinet, the hinge is hinged with the protective door through hinge outside control cabinet, the inside of machine body is provided with internal conveying subassembly. The QQ sugar folding machine of smooth feeding, the shaft sleeve of increasing weight is installed to the side away from the push air cylinder of lower winding film axle pole, make the movement of upper winding film axle pole in second adjusting groove be more smooth, thereby effectively reduce the alarm frequency of machine platform, and can be in the limiting of lower winding film axle pole simultaneously, provide effective support for lower winding film axle pole, and the use effect is better, make the QQ sugar folding machine of smooth feeding solve the problem that the lower axle moves when traction assembly drives, will appear the one end of lower axle and the notch joint, cause the machine platform abnormal alarm problem.

The utility model relates to the technical field of printed circuit board production and processing, in particular to a positioning mechanism for edge milling forming of a printed circuit board, which comprises a placing plate, a mounting frame, a polisher, a connecting arm and a moving plate, the connecting arm is fixedly connected with the side surface of the placing plate, and the mounting frame is fixedly connected with the lower surface of the upper end of the connecting arm. The movable plate is arranged below the mounting frame, the polisher is arranged on the lower surface of the movable plate, a positioning device is arranged on the upper surface of the placing plate, the positioning device comprises a mounting plate and a circuit board, the mounting plate is arranged on the upper surface of the placing plate, and the circuit board is arranged above the mounting plate. According to the utility model, the positioning device is arranged to effectively position the circuit board and play a role in supporting and positioning the circuit board, so that the situation that the equipment has limitation on processing of the circuit board due to the fact that the equipment is difficult to position the circuit boards with different sizes and models when common equipment is used is avoided, and the stability of the equipment is improved.

The invention relates to the technical field of batteries, in particular to a battery cell and a battery module, the battery cell comprises a shell, a first cover plate and a pole group, the shell is enclosed to form a space extending along a first direction, the first cover plate covers one end of the shell in the first direction, an anti-explosion valve is arranged on the first cover plate, and the pole group is arranged on the shell. Limiting stop blocks are arranged on the inner walls of the two sides of the shell in the second direction, the pole group is arranged in the shell, the limiting stop blocks are arranged between the first cover plate and the pole group, and the second direction intersects with the first direction. And the size of the shell in the second direction is defined as A, the wall thickness of the shell is defined as t, the size of the pole group in the second direction is defined as B, and the size of the limiting stop block in the second direction is defined as C. According to the battery cell and the battery module provided by the invention, the pole group is effectively limited by the limiting stop block, so that the stability of the battery cell is improved, and the service life of the battery cell is prolonged. The anti-explosion valve on the first cover plate is prevented from being blocked by the movement of the pole group in the first direction, and the safety of the battery cell is improved.

The utility model discloses an anti-slip lifting belt with a lifting speed control function, which relates to the technical field of lifting belts and comprises a box body, a mounting component is arranged at the top of the box body, a winding limiting component is arranged in the box body and comprises a winding roller rotationally connected to the inner wall of the box body through a rotating shaft, and the winding roller is arranged in the box body. A lifting belt body is fixedly installed on the surface of the winding roller, one end of the lifting belt body penetrates through the box body and extends to the outside of the box body, and a limiting wheel is fixedly installed at one end of the winding roller. According to the anti-skid lifting belt with the lifting speed control function, lifting and anti-skid operation can be carried out on the lifting belt in the using process through the arranged winding limiting assembly, meanwhile, the winding roller can be effectively limited in the using process, and the situation that the winding roller cannot be effectively limited in the using process is avoided; and the use convenience of the lifting belt is improved, and meanwhile, the subsequent use effect is also facilitated.

The utility model relates to the technical field of hydroponics, in particular to a rape seed hydroponics germination device which comprises a storage box, a connecting ring, a placement plate, a baffle plate and a placement block, the connecting ring is fixedly connected with the upper end of the storage box, the placement plate is arranged in the storage box, the placement block is fixedly connected with the lower end of the placement plate, and the baffle plate is arranged in the storage box. The shielding plate is arranged above the placing plate, one end of the placing plate is provided with a connecting device, the connecting device comprises a connecting plate and a clamping groove, and the connecting plate is fixedly connected with one end of the placing plate. According to the storage box disclosed by the utility model, by arranging the connecting device, the placement plate is effectively limited, the effect of positioning the placement plate is achieved, and when common equipment is used, the placement plate is randomly placed in the storage box, and the storage box is moved by the equipment under external force, the placement plate is easy to separate from the interior of the storage box, so that the equipment is difficult to effectively stabilize; and the stability of the equipment is improved.