31results about How to "Realize a rigid connection" patented technology

The utility model relates to a transportation vibration reduction structure of a compressor and a heat pump. The transportation vibration reduction structure of the compressor comprises the compressor, a bottom plate and a vibration reduction mechanism. The vibration reduction mechanism is provided with a first vibration reduction assembly and a second vibration reduction assembly. The second vibration reduction assembly is provided with a chassis and vibration reduction foot pads; the compressor is fixedly connected to the chassis through the first vibration reduction assembly, and the chassis is fixedly connected to the bottom plate through the vibration reduction foot pad. The fixing pieces are arranged along the periphery of the chassis at intervals; the fixing piece is arranged at the bending position of the periphery of the chassis, one end of the fixing piece is detachably connected to the chassis, and the other end of the fixing piece is detachably connected to the bottom plate. According to the transportation vibration reduction structure of the compressor, the fixing piece is arranged at the bent position of the chassis, so that rigid connection between the chassis and the bottom plate is achieved, impact force in multiple horizontal directions generated by violent jolting of the compressor in the transportation process can be better resisted, and pipeline breakage of the compressor is avoided.

The utility model discloses a permanent and temporary combined assembly type underground structure plate wall connecting node which comprises an assembly type underground diaphragm wall, a full-length steel plate is installed on the side wall of the assembly type underground diaphragm wall, and a prefabricated structure plate is hoisted on the full-length steel plate. The gap between the prefabricated structural slab and the fabricated underground diaphragm wall is filled with ultra-high-performance concrete, and a steel bar structure is arranged in the ultra-high-performance concrete. According to the utility model, the rigid connection between the two prefabricated parts is realized, the integrity of the structure is improved, and the safety and durability of the underground structure are fully ensured; an underground diaphragm wall which is usually used as a temporary structure is changed into a permanent structure, so that the construction period is shortened, and the investment is saved; the ultra-high performance concrete poured in the joint can greatly shorten the anchoring length of the steel bars, enlarge the arrangement distance of the steel bars, obviously reduce the using amount of the steel bars on site and the binding workload, is convenient to install and simple in process, obviously improves the construction efficiency, and has high popularization and application value.

This utility model discloses a prefabricated reinforced concrete frame structure with steel component connections, belonging to the field of prefabricated building construction technology. Addressing the problems of cumbersome formwork support in traditional cast-in-place frames and the unreliability and partial need for formwork support in existing prefabricated joint connections, this structure includes precast columns, precast main beams with or without corbels, precast secondary beams, composite ribbed composite slabs, and column-to-column connection embedded parts. Rigid beam-column connections are achieved through T-shaped steel corbels, channel steel corbels, steel embedded parts components, and rebar bolt connectors. Grouting sleeves of the column-to-column connection embedded parts connect the longitudinal reinforcement of the upper and lower columns. Steel clips on the composite ribbed composite slabs are engaged and positioned with the main beams, and the precast layer serves as the bottom formwork. This structure achieves a completely support-free and formwork-free process, continuous force transmission at joints, strong seismic resistance, factory prefabrication ensuring quality, high on-site assembly efficiency, reduced construction waste, adaptability to multiple scenarios, and ease of modification. It is suitable for frame buildings such as residential and office buildings.

The utility model belongs to the technical field of glass fiber reinforced plastic pipelines, and discloses a tapered joint glass fiber reinforced plastic pipeline, which comprises a first pipeline and a second pipeline, a butt joint assembly is connected between the first pipeline and the second pipeline, the butt joint assembly comprises an annular plate, the annular plate is connected to the bottom end of the first pipeline, and the annular plate is connected to the bottom end of the second pipeline. The butt joint assembly structure is arranged, the opposite ends of the first pipeline and the second pipeline are aligned, then the threaded pipe makes contact with the threaded cylinder, the pipelines are rotated, the threaded pipe and the threaded cylinder are in threaded connection, and therefore the conical connector enters the conical connector, and the conical connector is connected with the second pipeline. Butt joint of the first pipeline and the second pipeline is achieved, the sealing performance of the pipeline is improved by arranging the conical connector and the conical connector, meanwhile, rigid connection between the first pipeline and the second pipeline is achieved, separation between the first pipeline and the second pipeline is prevented, and normal use of the glass fiber reinforced plastic pipeline is facilitated.

This utility model discloses a modular axle forging anvil assembly, including a medium anvil, side anvils symmetrically arranged on both sides of the medium anvil, a positioning and connecting mechanism, and a bolt assembly. A reinforcing rib is fixedly connected to the side wall of the medium anvil near the side anvils, and the reinforcing rib has a movable cavity. The positioning and connecting mechanism includes a positioning block slidably disposed within the movable cavity. The positioning block is inserted into the side anvil, and a connecting rod is fixedly connected to one side of the positioning block. A lifting seat is fixedly connected to the end of the connecting rod away from the positioning block. The bolt assembly includes a bolt threadedly connected to the side anvils. The end of the bolt passes through the reinforcing rib and abuts against the lifting seat, and the end has a tapered rod. This utility model allows the side anvils to be detachably connected to the medium anvil via the positioning and connecting mechanism and the bolt assembly, facilitating the replacement of suitable side anvils for different axle models without requiring a complete replacement of the assembly, thus reducing equipment costs and expanding applicability.

This utility model discloses a composite aluminum panel, including a wall. An aluminum panel body is provided on one side of the wall, and a groove is formed on one side surface of the aluminum panel body. A connecting plate is provided on one side of the aluminum panel body, and a reinforcing plate is fixedly installed on one side surface of the connecting plate. In this utility model, by pulling the connecting block on the limiting rod, it moves along the through groove of the connecting cylinder, causing the telescopic rod to move synchronously and compress the outer spring. When the end of the limiting rod disengages from the mounting base, the insert of the connecting plate can be inserted into the wall mounting base. After releasing the connecting block, the spring rebounds, pushing the limiting rod to automatically pass through the insert and engage with the limiting hole of the mounting base, completing a quick locking installation. For disassembly, pulling the connecting block causes the limiting rod to exit the limiting hole, separating the insert from the mounting base, achieving efficient disassembly. This structure utilizes the elastic restoring characteristics of the spring, simplifying the assembly and disassembly process and significantly improving the convenience of maintenance operations while ensuring connection reliability.

A passive delay hatch unlocking mechanism suitable for an underwater environment comprises a hatch cover, a dry cabin shell, a wet cabin shell, a hatch cover fixing ring, a hatch cover sealing ring, a hatch cover sealing pressing plate, a water-soluble fixing belt, a radial sealing ring, an axial sealing ring, a hatch cover fixing ring bolt and a hatch cover sealing ring bolt. The invention has the following characteristics: (1) based on the characteristic that the water-soluble fixing band is dissolved in water, the passive delayed unlocking of the hatch in the underwater environment can be realized; and (2) rigid connection between the hatch cover and the shell can be realized through a sandwich structure formed by the hatch cover, the hatch cover fixing ring, the water-soluble fixing belt and the hatch cover fixing ring bolt.

The utility model discloses a driving axle system of a sitting type forward forklift, which comprises a frame and a driving axle arranged below the frame, the driving axle is provided with a driving part for controlling the frame to complete steering, and the driving axle is also provided with two auxiliary parts for preventing a vehicle from transversely tipping over; the auxiliary part comprises an upper spring seat installed on the drive axle, a lower spring seat is arranged below the upper spring seat, the upper spring seat and the lower spring seat are connected through a spring, and an auxiliary wheel is arranged on the lower spring seat. The auxiliary wheel is simple in structure, through the arrangement of the auxiliary part, the upper spring seat overcomes the action of spring force to move downwards until the upper spring seat makes contact with the lower spring seat, rigid connection between the auxiliary wheel and the drive axle is achieved, when a vehicle tends to be overturned transversely, overturning torque can be resisted, and the transverse stability of the whole vehicle can be improved.

The invention relates to the technical field of pipeline joints, and discloses a high-sealing-performance insulating joint which comprises a connector, a sleeve cylinder, insulating filler and a U-shaped sealing ring, the sleeve cylinder is connected to the outer side of the connector in a sleeving mode, the space between the connector and the sleeve cylinder is filled with the insulating filler, the U-shaped sealing ring is arranged in the connector, a sealing stabilizing assembly is arranged in the connector, and the U-shaped sealing ring is connected with the U-shaped sealing ring in a sleeving mode. The sealing stabilizing assembly comprises an insulating plate which is arranged in the connector. A buffer is installed for a sealing system by sensing the internal pressure of a pipeline and dynamically adjusting the pressing state of the buffer plate set, initial sealing force is provided, meanwhile, the risk that a sealing piece is damaged due to pressure pulsation is reduced, and the sealing reliability of a connector under the complex working condition is fundamentally improved; through the negative pressure detection mechanism, operation and maintenance personnel can find faults in time and arrange maintenance in a planned mode, and economic losses and safety risks caused by leakage accidents and unplanned shutdown are avoided.

The utility model discloses middle trough hoisting and mounting integrated equipment, and belongs to the field of coal mining equipment mounting devices. Comprising a frame main body which is movably connected to middle grooves arranged in sequence through a walking mechanism; the hoisting device is mounted on the frame main body, and the hoisting device comprises a hoisting supporting main body which is rotatably connected to the upper surface of the frame main body; the hoisting beam is pivotally connected to the hoisting support main body; and the grabbing mechanism is connected to the hoisting beam in a pivoted mode, the grabbing mechanism comprises a grabbing body support and a clamping jaw pivoted to the grabbing body support, and the clamping jaw is suitable for being connected with the middle groove in a clamped mode when stretching out of the outer side of the grabbing body support. The vehicle can be rapidly and safely unloaded and installed in place.

The invention relates to a fan transmission shaft connection assembly; the assembly comprises a bolt (2), a slotted outer tapered sleeve (3), a slotted inner tapered sleeve (4), and a clamping sleeve (5); the slotted inner tapered sleeve (4) is a stepped ring, the first section of which is a cylindrical surface and the second section is a conical surface in the circumferential direction; the inner diameter of the slotted inner tapered sleeve (4) matches the outer diameter of the cylindrical section of a coupling (1); through holes are distributed axially on the first section; the outer diameter of the slotted outer tapered sleeve (3) matches the inner diameter of a steel pipe (6), and the inner surface is a conical surface; the left end surface of the slotted outer tapered sleeve (3) is fitted to the right end surface of the first section of the cylindrical surface of the slotted inner tapered sleeve (4); the clamping sleeve (5) has a threaded through hole in the axial direction, and the inner and outer surfaces are both conical surfaces, which are respectively consistent with the angle of the second section of the conical surface of the slotted inner tapered sleeve (4) and the inclination angle of the inner surface of the slotted outer tapered sleeve (3); the assembly realizes the rigid connection between the coupling and the steel pipe by generating pressure on the inner wall of the steel pipe.

The utility model relates to a building facade keel staggered hole fixing device which effectively solves the problem that the adjustability is poor when keels are installed in a staggered mode. According to the technical scheme, the sliding arm comprises two sets of sliding arm units, each set of sliding arm unit comprises a sliding block and a connecting arm, the sliding block is installed on a keel in a sliding mode, one end of the connecting arm is hinged to the sliding block, and the other end of the connecting arm is provided with a first hinge hole. The first hinge holes in the outer ends of the connecting arms of the two groups of sliding arm units are formed in the same embedded bolt or expansion bolt in a penetrating manner, and the compression nut is screwed at the outer end of the embedded bolt or expansion bolt to compress the end parts of the two connecting arms; the connecting piece can be connected with any bolt position, a long groove does not need to be formed in the keel, the strength of the keel is not affected, punching on site is not needed, installation is convenient, the connecting piece can adapt to an existing keel, and good universality is achieved.

The self-stress hollow slab structure of the bridge comprises a hollow slab and a self-stress rigid connection beam, the hollow slab is composed of a self-stress bottom plate, two thin rib plates and a top plate, and the self-stress rigid connection beam is poured above the extending parts of the two adjacent bottom plates; the self-stress rigid connection beam is composed of micro-expansion concrete, a rigid connection beam longitudinal rib, a rigid connection beam stirrup, a left single-limb rib, a right single-limb rib, two adjacent lower inclined steel bar extending parts and two adjacent upper inclined steel bar extending parts. The construction method comprises the following steps: a) welding the expansion plates and the longitudinal self-stress ribs; b) pouring high-expansion concrete; c) supporting an inner template of the hollow slab; d) pouring common concrete; e) binding a steel reinforcement framework of the self-stress rigid connection beam; and (f) micro-expansive concrete is poured. According to the bridge self-stress hollow slab structure and the construction method thereof, rigid connection between the hollow slab and the self-stress rigid connection beam is achieved, the situation that a single hollow slab is stressed is avoided, and the service life of the hollow slab is prolonged.

The present invention discloses an automated flexible assembly equipment and an assembly method for a variable-rigidity valve ball, and relates to the field of mechanical devices for assembling valve balls, comprising: a robot, connected to a gripper via a variable-rigidity mechanism; a workbench; a first assembly precision positioning mechanism, capable of collecting the spatial position of a valve housing, the first assembly precision positioning mechanism comprising a position receiver, arranged on the gripper; a second assembly precision positioning mechanism, comprising a pair of signal transmitting ends, the signal transmitting ends being respectively arranged opposite to the horizontal pipe mouth ends of the valve housing, and when the valve ball enters the valve housing, the signal transmitting ends send a positioning signal to the valve ball; a control unit, for controlling the robot and the variable-rigidity mechanism; the assembly equipment is switched to a rigid connection mode in the grasping stage to ensure the grasping position and the handling accuracy, and is switched to a flexible connection mode in the assembly stage to avoid affecting the assembly accuracy and scratches caused by hard assembly.

The utility model relates to an inertial navigation system mounting structure and a vehicle-mounted inertial navigation test system.The inertial navigation system mounting structure comprises a mounting frame, a pitch angle adjusting frame, a roll angle adjusting frame and a course angle adjusting seat, the mounting frame comprises a plurality of stand columns, and lifting assemblies are arranged on the stand columns; the pitch angle adjusting frame is rotatably arranged on the mounting rack around a first direction; the roll angle adjusting frame is rotatably arranged on the pitch angle adjusting frame around a second direction; the course angle adjusting seat is rotatably arranged on the roll angle adjusting frame around a third direction, the first direction, the second direction and the third direction are perpendicular to one another, and a mounting part is arranged on the course angle adjusting seat. The position of the high-precision inertial value system arranged on the mounting part can be adjusted through the lifting assembly, the pitch angle adjusting frame, the roll angle adjusting frame and the course angle adjusting seat, so that the height position and each axial mounting angle of the high-precision inertial value system are kept consistent with the vehicle-mounted inertial measurement element; complex angle conversion is not needed for test data collected by a high-precision inertial value system, and comparative analysis can be directly carried out.

This invention discloses a foldable space truss sealing device and its assembly method. The device includes a base structure, with a first folding frame vertically mounted at each end of the base structure. A second folding frame is installed between the front and rear ends of the two first folding frames, forming a rectangular truss. The base structure supports the rectangular truss. Both second folding frames are movably connected to the base structure. Multiple plug-in structures are installed between each second folding frame and the two first folding frames. Splicing structures are installed on the outer sides of the first folding frames and the outer sides of the base structure. This invention enables folding and collapsing, thus solving the technical problem that existing truss structures occupy a large volume during transportation, have a limited number of modules that can be transported at one time, and are difficult to meet the demand for rapid transportation of a large number of truss modules in flood control and disaster relief.

The invention provides a design method of a steel structure spiral staircase, and relates to the field of building steel structure engineering, and the method comprises the steps: building a spiral staircase space line model through computer software, and discretizing and importing a finite element program; defining a bearing system composed of the internal rotation steel beam, the external rotation steel beam and the step steel beam; applying a handrail load, a step load and a temperature effect; setting boundary conditions of the fixed support; executing deformation, internal force and stress analysis; internal and external rotation steel beams are designed by adopting a box-shaped section according to a stress result, and a rectangular steel pipe step beam is used for providing plane external support; arranging riffled plates and rib plates on the lower flanges of the steel beams based on the deformation data; section steel is pre-embedded in the concrete platform according to the internal force of the support, and rigid connection of the ends of the steel beams is achieved. According to the method, the limitation of a traditional graph set on the size of the spiral staircase is broken through, and the requirements for strength, stability and deformation control are met at the same time through finite element full-process driving design under the condition that intermediate supports are cancelled.

The present application relates to the technical field of sampling equipment, in particular to a rare earth ore automatic sampling and analysis exploration equipment, which comprises a bottom plate and a machine shell, the machine shell is fixedly installed on the bottom plate, a handle facilitating carrying is arranged on the top of the machine shell, and a mounting bracket is fixedly arranged on the bottom plate in the machine shell; further comprising an outer shell fixedly connected to the top of the machine shell, a winding wheel is rotatably installed in the outer shell, a chain link is wound on the winding wheel, a guide frame is fixedly connected to the middle of the mounting bracket, the guide frame is used for guiding the chain link, and the guide frame is in communication with the outer wall of the outer shell. The present application utilizes an electromagnet, a piston and a hydraulic linkage structure to automatically trigger the bolt to extend during the downward sampling process, realize the rigid connection between adjacent sections of the rod, ensure that the sampling cylinder is stably drilled, and after the sampling is completed, the electromagnet is powered off, the bolt is automatically retracted, the chain link restores flexibility, and the rapid winding is facilitated, and the rigidity of sampling and the convenience of storage are taken into account.

The utility model relates to the technical field of medicine packaging bottles, and discloses an emergency medicine administration pendant which stores first-aid pills inside and comprises a bottle body, a bottle cap and a medicine administration device, a bottle plug body capable of being inserted into the bottle body is arranged at the bottom of the bottle cap, the medicine administration device is connected inside the bottle body in a sliding mode, and the medicine administration device comprises two elastic fixing pieces which are arranged oppositely. Locking blocks are arranged at the tops of the opposite sides of the elastic fixing pieces, the first-aid pill is located in the space defined by the two elastic fixing pieces and located below the locking blocks, a traction ball is arranged at the bottom of the bottle plug body, and the diameter of the traction ball or the diameter of the first-aid pill are both larger than the distance between the two locking blocks. And the traction ball extends below the two locking blocks when the bottle plug body is inserted into the bottle body. The medicine storage and administration device is arranged in the pendant, so that a patient can conveniently carry the pendant on the body and is prevented from forgetting the position of medicine; meanwhile, the internal structure of the medicine administration pendant is optimized, the medicine taking operation of the patient is simplified, the medicine taking time is greatly shortened, and the life safety of the patient is guaranteed.

The utility model discloses a composite rock wool color steel plate leakproof connecting structure which comprises a composite rock wool color steel plate body, a corrugated cover plate is arranged on one side of the upper end face of the composite rock wool color steel plate body, a blocking strip is arranged on the edge of the corrugated cover plate, a through hole is formed in the blocking strip, an inserting groove is formed in the lower portion of the corrugated cover plate, and a through hole is formed in the inserting groove. The utility model relates to the technical field of composite type rock wool color steel plates, rigid connection between the composite type rock wool color steel plate bodies is achieved through matching of the inserting grooves formed in the two sides of the composite type rock wool color steel plate bodies and the inserting blocks, one end of a corrugated cover plate is buckled on the water guiding grooves, and the corrugated cover plate is arranged on the water guiding grooves. According to the color steel plate, the color steel plate body is provided with the water guide grooves, and the contact positions are fixedly connected through the rivets, so that a rain-shielding buckle cover is formed above the joint position of the color steel plate body, the leakage-proof performance of the joint part is improved, natural rainfall flows downwards along the water guide grooves under the action of gravity, and the seepage-proof effect of the joint part is effectively guaranteed.

The invention relates to the technical field of guide wheel ceramic plating, in particular to bus bar traction guide wheel ceramic plating equipment which comprises a base, and a vacuum tank communicated with a vacuum pump set is fixedly connected to the surface of the base. According to the bus bar traction guide wheel ceramic plating equipment, an operator only needs to sleeve the guide wheels into the placing rods in sequence, and the dead weight of the guide wheels during falling can trigger a pneumatic chain reaction. The first guide wheel presses the lowermost limiting block to drive the pressed pneumatic piston rod, compressed gas of the first guide wheel pushes the upper-stage ejection pneumatic piston rod through the pipeline, and therefore the upper side edge limiting mechanism is pushed out of the inner groove and exactly abuts against the upper surface of the guide wheel to form limiting. And the guide wheels are automatically and repeatedly placed along with successive placement of the guide wheels, and finally all the guide wheels are automatically separated and axially positioned by the side edge limiting mechanisms which extend out in pairs. Rapid batch feeding of multiple workpieces is achieved, it is ensured that constant isolation space exists between the workpieces, and preconditions are created for subsequent uniform coating.

Provided is a connection device for lifting the axle box of a metro engineering vehicle as a whole. The spring upper seat and the spring lower seat are located between the bogie frame and the wheelset axle box, and the spring upper seat is fixedly connected to the bogie frame. The process pin connected to the bogie frame passes through the center holes on the spring upper seat and the spring lower seat and extends to the outside of the spring lower seat. The lower end of the spring lower seat is adapted to the mounting hole on the wheelset axle box and the vibration-damping pad is sleeved on the spring lower seat. The lower end of the process pin is detachably fixedly connected to the locking member to realize the rigid connection between the bogie frame and the wheelset axle box when lifting. The present invention eliminates the lifting idle travel of the bogie frame and the wheelset axle box during the overall lifting, avoids the misalignment of the buffer spring during lifting, reduces the risk of a series of vertical oil pressure shock absorbers exceeding the maximum lifting travel, ensures the safety and reliability of the bogie frame and the wheelset axle box when lifting as a whole, has high utilization rate of the jacking equipment, reasonable design, economical and applicable, and improves the safety and reliability of operation.

This utility model discloses an electric cantilever umbrella, relating to the field of electric sunshade technology. The electric cantilever umbrella includes a base, a support rod, a connecting rod, and an umbrella body. The support rod includes a fixed rod and a rotating rod. The fixed rod is detachably connected to the base. The two ends of the connecting rod in the length direction are connected to the rotating rod and the umbrella body. The inner cavity of the rotating rod is provided with a first driving member and a connecting member. The connecting member connects the fixed rod and the rotating rod. The output end of the first driving member is connected to the connecting member to drive the connecting member to rotate, thereby causing the connecting rod to rotate relative to the fixed rod.

The utility model provides a motorcycle head hood structure which comprises a handlebar rear hood, a handlebar front hood, an instrument assembly, a windshield support, a windshield, two rubber nuts and a handlebar tube, and the instrument assembly is arranged at the middle notch position of the top end of the handlebar rear hood and suspends at the top end of the handlebar rear hood. Four fastening connection blocks are arranged at the bottom of the handle front cover, the handle front cover is connected with the handle rear cover in a fastening mode through the four fastening connection blocks, a concave portion of the handle front cover is connected with the windshield support, and the windshield support is connected with the handle front cover through three self-tapping screw seats. According to the utility model, the instrument assembly can be conveniently fastened on the handle rear cover by adopting the two positioning mounting plates and the two free positioning plates, the connection strength and stability are improved, and meanwhile, the front cover fastening seat is arranged to be fastened and connected with the handle front cover, so that the rigid connection is realized, and the shaking of the handle front cover caused by bumping is reduced.

The utility model relates to a heating device with sterilization function for solving the problem of damp wall surface microbial breeding and traditional heating cannot completely sterilize. The device comprises at least one heating plate assembly, control component and ultraviolet lamp group. The utility model can cooperate with efficient heating in depth sterilization, realize the inactivation of wall body microorganism by ultraviolet ray while maintaining the thermal advantage of graphene heating panel, and improve the service life of wall surface.

This application provides a positioning fixture for a steel plate waterstop at a construction joint. The steel plate clamp includes a first clamping plate and a second clamping plate, with the top ends of the first clamping plate hinged to the second clamping plate. A fixing connecting plate is provided on the outer side of the first clamping plate. A locking bolt passes through the first and second clamping plates, with the nut of the locking bolt abutting against the outer side of the second clamping plate, and the locking nut of the locking bolt abutting against the outer side of the first clamping plate. A fixing pile is detachably mounted on the casting template, and the fixing pile is detachably connected to the fixing connecting plate. This application, through the hinged connection between the first and second clamping plates and the abutting design of the locking bolt, can clamp and fix the steel plate waterstop, preventing displacement due to concrete compression during pouring. The detachable connection between the fixing pile and the casting template, and the cooperation between the fixing connecting plate and the fixing pile, achieve a rigid connection between the fixture and the template, ensuring the vertical positioning accuracy of the steel plate waterstop at the construction joint, effectively preventing waterproofing failure due to displacement, and improving the reliability of the tunnel drainage system.

The utility model provides a splicing type LED display screen which comprises a base, a display screen body is fixedly installed on the top side of the base, a cavity is formed in the inner side of the base, two sets of through holes are symmetrically formed in the top side of one end of the cavity, polished rods are connected to the inner sides of the two sets of through holes in a sliding mode, and the polished rods are connected with the display screen body in a sliding mode. The bottom ends of the two sets of polished rods are jointly and fixedly connected with a spring bolt, and a connecting base is fixedly installed at the position, corresponding to the spring bolt, of the other end of the base. According to the display screen, flexible movement of the spring bolt in the base can be achieved through cooperation of the polished rod and the limiting block, pressure can be applied to the spring bolt through cooperation of the spring and the polished rod, rigid connection of multiple sets of display screen bodies can be achieved through cooperation of the spring bolt and the connecting base, and the display screen is convenient to use. And gaps among the multiple groups of display screen bodies when the display screen bodies are collided by personnel, moved by equipment or impacted by external vibration force of the ground are prevented, so that the stability of multi-screen linkage picture playing is ensured.