83results about How to "Assembly precision" patented technology

The utility model provides a positioning clamp for assembling a bed core frame, and belongs to the technical field of machinery. The problem that an existing clamp affects the assembling stability is solved. The positioning clamp for assembling the bed core frame comprises a base plate, and two sets of clamping assemblies are arranged on the base plate in a front-and-back mode; the clamping assembly comprises at least one clamping unit, each clamping unit comprises a vertically-arranged clamping block, a liftable pressing piece and a translation mechanism used for driving the clamping block to translate front and back, and a clamping area used for clamping a bed core is defined by the multiple clamping blocks; a strip-shaped notch is formed in the side, close to the clamping area, of the top wall of the clamping block and penetrates left and right, a section of supporting face with the arc-shaped cross section is arranged on the inner wall of the strip-shaped notch, a pressing piece is arranged over each supporting face, and a clamping opening used for pressing the frame is formed between each pressing piece and the corresponding supporting face. A driving mechanism enabling the corresponding pressing piece to move front and back is arranged on the side, back to the clamping area, of the clamping block. The positioning clamp for assembling the bed core frame can ensure the assembling stability.

This application discloses a method for manufacturing and assembling a wooden ribbed floor slab, relating to the field of product assembly technology. The method involves a robot picking up pre-processed timber from a material table, cutting the end connection surfaces using a CNC platform to obtain the timber to be assembled; positioning the timber to be assembled onto a pre-installed wooden floor slab load-bearing panel, and using a pneumatic nail gun to fix the timber to the load-bearing panel, completing the installation of the circumferential secondary ribs; uniformly applying wood structure adhesive to the pre-designed contact surfaces between the laminated wood strips to be assembled and the load-bearing panel of the wooden floor slab according to a preset assembly plan; using the circumferential secondary ribs as templates, bending the laminated wood strips into radial main ribs using a robot, and installing self-tapping screws to complete the node connection; connecting the column head nodes to the load-bearing panel of the wooden floor slab using self-tapping screws, centrally transferring the end shear force of the radial main ribs to the supporting columns; and through floor slab flipping and top reinforcement processes, the robot additionally installs self-tapping screws to complete the assembly of the wooden ribbed floor slab.

The utility model belongs to the technical field of household seats, and particularly relates to a backrest dismounting and mounting structure and a seat. The backrest dismounting and mounting structure comprises a mounting piece, a mounting base, a reset spring and a locking pin. Wherein the reset spring is provided with a fixed end far away from the mounting base and a deformation end close to the mounting base, and the rebound direction of the reset spring is staggered with the mounting direction of the mounting piece; the locking pin is connected with the deformation end and moves in the compression direction and the rebound direction of the reset spring. A locking groove is formed in the mounting piece; during installation, the reset spring is compressed firstly, the reset spring rebounds after the locking groove moves to the motion trail of the locking pin, the locking pin is pushed into the locking groove by the reset spring, and locking is completed. The locking pin is further provided with a first limiting part for limiting the locking groove to move in the direction opposite to the installation direction, and the installed installation piece is prevented from retreating from the installation base. According to the utility model, the seat can be quickly assembled without the assistance of a toolkit, and the assembly is simple and convenient.

This utility model discloses a packaging mold for a suspended guide coil, relating to the field of mold packaging technology. The device includes a material carrier plate; the material carrier plate has a material-carrying cavity inside, and the top and bottom of the material-carrying cavity are respectively provided with a first mounting limiting groove and a second mounting limiting groove. The first and second mounting limiting grooves are respectively fitted with a first molding component and a second molding component, which support the top and bottom coils. A lead wire support assembly is provided below the bottom coil. The packaging mold for the suspended guide coil of this utility model, through the mutual cooperation of various structures / components in the lead wire support assembly, ensures the parallelism of the three lead wires during the packaging process, effectively avoiding deformation under external force and improving the packaging accuracy of the coil.

The utility model discloses a clamp for reserving furniture leg mounting position, including outer frame positioning device, outer frame positioning device includes the base plate, and a plurality of outer push subassembly is arranged to the both sides of base plate symmetry, and outer push subassembly includes the connecting plate of fixed setting on the base plate and the push rod device of fixed setting on the connecting plate, and push rod device includes the free end, and is provided with the locating clamping block at the free end, the inner support positioning device includes the inner support frame, and is provided with a plurality of inner support blocks of corresponding locating clamping block on the inner support frame. This scheme can improve furniture automation assembly's efficiency and precision, reduce manual intervention and cost investment, and further guarantee furniture assembly's quality and user experience.

The utility model provides a kind of double DC plug-in connection line with buffer protection and concentricity limit, including plug-in male head, plug-in female head and wiring, the plug-in male head has copper needle with one side wiring electrically conductive, the plug-in female head has with copper needle cooperation and with the other side wiring conduction slot, it is characterized in that, the plug-in male head and plug-in female head all include: hard inner core, by one injection molding;Soft shell, by secondary injection molding in hard inner core outside;Wherein, the hard inner core and wiring and copper needle or wiring and slot are integrally formed.The utility model forms the double-layer structure of different internal and external hardness with twice injection molding, ensure structure rigidity and copper needle concentricity by hard inner core, and provide buffer protection, comfortable touch and convenient assembly by soft shell, rigidly combined to improve product comprehensive performance.

The application discloses a high-stability horseradish peroxidase, a recombinant expression vector, a preparation method and application. The amino acid sequence of the horseradish peroxidase is shown as SEQ ID NO. 1. Compared with wild-type horseradish peroxidase, the enzyme activity of the horseradish peroxidase is increased by 3.2 times, and compared with commercially available horseradish peroxidase, the thermal stability is better. The method can produce the horseradish peroxidase by using a tobacco transient expression system. Compared with an Escherichia coli expression system and a yeast expression system, the tobacco transient expression system can correctly fold and glycosylate, and has higher enzyme activity and stability. The purity of the horseradish peroxidase obtained according to the method can reach RZ 3.2, the enzyme activity can reach 275 U / mg, and the horseradish peroxidase can be applied to immunological detection.

The utility model relates to the technical field of servo motors, in particular to an integrated machine body structure for a servo motor, which comprises a machine shell cylinder with a front cover, a round through hole is arranged at the axis position of the front cover, and an oil seal ring groove, a bearing ring groove and a glue containing ring groove are sequentially arranged along the inner wall of the round through hole from outside to inside. A stator iron core axial limiting flange is arranged at the position, close to the front cover, of the inner wall of the shell cylinder; a plurality of rear cover connecting bosses are symmetrically arranged at the position, close to a rear port, of the outer wall of the machine shell barrel, and a power line box mounting position is arranged at the top of any rear cover connecting boss. And a power line outlet and a grounding screw hole which can penetrate through the rear cover connecting boss and the shell cylinder are formed in the power line box mounting position. The machine body structure is simple in structure, can realize rapid and accurate assembly of subsequent components such as a stator and a rotor, can realize sealing only through a movably connected rear cover, and realizes front and back wiring through a power line outlet.

The utility model discloses a fine adjustment device for assembling a middle stand column of an assembly type station, which comprises at least two transverse adjustment components which are arranged at intervals up and down and are positioned on any one of the left and right side surfaces of the middle stand column and at least two longitudinal adjustment components which are arranged at intervals up and down and are positioned on any one of the front and rear side surfaces of the middle stand column, all the transverse adjusting assemblies are arranged on the same side, and all the longitudinal adjusting assemblies are arranged on the same side. When the middle stand column descends under the action of a crane, the middle stand column inclines towards the corner where the fine adjustment device is arranged, then accurate assembling of the middle stand column is guaranteed by controlling the extending length of the fine adjustment cylinders arranged in a right-angle mode, in the whole adjustment process, only the fine adjustment cylinders are arranged on the two sides, transition limitation is avoided, meanwhile, the fine adjustment device uses few oil cylinders, and cost is low. The cost can be effectively reduced; the supporting cross beam is of a detachable structure, the supporting cross beam is detached when the trolley moves, the trolley can pass through the middle stand column, and therefore follow-up adjustment is guaranteed.

The application discloses a natural language and meta-model driven code generation system, which comprises an AI layer containing multiple intelligent agents working cooperatively, the AI layer being configured to receive natural language instructions and perform intent recognition, entity extraction, context analysis and constraint verification through the intelligent agents to generate structured metadata; a meta-model engine configured to construct and instantiate one or more meta-model objects according to the structured metadata generated by the AI layer; and a code template engine configured to match one or more corresponding code templates from a code template library according to the content and type of the meta-model objects, and generate executable code or configuration files in one or more target languages through rendering. According to the scheme, natural language is converted into a meta-model decoupled from technology through AI, and high-quality standardized code is automatically generated through a template engine, thereby improving development efficiency and enabling developers to focus on core business innovation.

The utility model discloses a feeding cart capable of being assembled quickly, and particularly relates to the technical field of conveying carts, the feeding cart is connected to a feeding station of a feeding machine, the feeding cart comprises a frame body, and the frame body is provided with an assembling assembly matched with the feeding station and a material placing plate connected to the frame body; the assembling assembly comprises a conical positioning pin arranged at the front end of the frame body and a guide groove formed in the feeding machine and matched with the conical positioning pin. A material placing box is arranged on the material placing plate, and a material placing groove matched with the outer contour of a workpiece is formed in the material placing box. According to the utility model, the conical positioning pin is matched with the guide groove, so that the trolley and the feeding machine can be accurately guided, butted and positioned, the trolley and the feeding machine can be quickly assembled, the material placing box of the material placing groove fitting the outer contour of a workpiece is arranged on the material placing plate, and the contour of the workpiece is accurately matched, so that materials can be prevented from being collided and damaged, and the working efficiency is improved. And rapid alignment can be achieved without visual assistance, and the feeding efficiency is greatly improved through the design.

The utility model discloses a bottom forming device of blow mould that improves cooling effect to shorten blow moulding post -cooling setting time, include: a pair of bottom forming half mould, this pair of bottom forming half mould is provided with bottom forming half cavity respectively, and the bottom forming half cavity on this pair of bottom forming half mould corresponds to each other, and when the mould closes, the bottom forming half cavity on this pair of bottom forming half mould forms bottom forming cavity, a plurality of cooling grooves are provided on the bottom forming half mould respectively, a pair of bottom forming half mould is provided with the sawtooth shape cooling row of teeth respectively on the outside of bottom forming half cavity on each profile thereof, and the cooling row of teeth on this pair of bottom forming half mould is staggered with each other. The bottom forming device can be widely used in the blow mould of middle -sized plastic bottle (barrel), can shorten the cooling time greatly, improves production efficiency.

The invention relates to the field of mechanical automatic assembly, in particular to a fin feeding machine. The fin feeding machine comprises a feeding mechanism, a conveying mechanism, a fin discharging mechanism, an assembling mechanism and a carrying mechanism, the feeding mechanism is used for conveying fin materials, the conveying mechanism receives the fin materials and continues to convey the fin materials, and the fin discharging mechanism clamps the fin materials and presses the fin materials down to fall into the assembling mechanism; the assembling mechanism assembles fin materials and flat tube materials at intervals, and the carrying mechanism enables the equipment to automatically carry the flat tube materials or assembled finished products to a target position. According to the fin assembling device, the fin feeding efficiency and the quality of assembled products can be improved, and meanwhile the assembling requirements of fins and flat pipes of different specifications can be met.

This invention relates to an occlusion device and corresponding tooling, comprising a relatively independent fixing part and a sealing part, which are assembled to form the occlusion device. Thus, the fixing part and the sealing part can be manufactured, fabricated, and transported independently, and then assembled according to the required dimensions when implantation is needed. Therefore, the assembled left atrial appendage occlusion device has a wider range of size combinations, thus possessing good adaptability and fully adaptable to some special-sized left atrial appendage shapes. Simultaneously, the tooling facilitates the assembly of the occlusion device, enabling efficient and precise assembly with minimal impact on the device's physical properties and lifespan.

The utility model discloses a light guide column riveting press belongs to riveting press technical field, including work table, the top fixedly connected with fixed seat of work table, fixedly connected with the vibration feeder of fixed seat and work table, the top fixedly connected with the fixed frame of fixed seat, be provided with the staggered mechanism on the fixed frame, the staggered mechanism is opposite with vibration feeder and is used for receiving product shell, the fixed connection with the slide chute of unloading of fixed frame, and the slide chute corresponds with the staggered mechanism, the top fixedly connected with the support frame of fixed seat, the sliding connection with the slide of support frame, the bottom fixedly connected with the discharge nozzle of slide, and the discharge nozzle corresponds with the staggered mechanism, in the utility model, this riveting press adopts the automatic assembly light guide column and product shell, need not manual installation light guide column, and the artificial cost is low, can make light guide column and product shell accurate positioning assembly after feeding, thereby guarantee the riveting effect of light guide column, effectively improve work efficiency.

The utility model discloses a power supply signal male end connector, which comprises a first power supply module, a telecommunication module, a second power supply module and a positioning module, and is characterized in that the first power supply module comprises a power supply base body unit, and a first power supply terminal and a second power supply terminal which are assembled and connected with the power supply base body unit; and the first power supply terminal and the second power supply terminal are respectively provided with a power supply main body, an elastic connecting arm and an anti-retreating structure. The first power supply terminal and the second power supply terminal are installed in the power supply main body, the stability of the first power supply terminal and the second power supply terminal in the power supply main body is ensured through the arrangement of the anti-retreating structure, and when the first power supply module and the second power supply module are inserted into a connector female end, the first power supply terminal and the second power supply terminal are connected. Due to the arrangement of the anti-retreating structure, the influence of reverse thrust caused by insertion on the first power supply terminal and the second power supply terminal can be avoided, so that the first power supply terminal and the second power supply terminal cannot retreat from the power supply main body, and the first power supply terminal and the second power supply terminal can be ensured to be firmly and stably fixedly assembled in the power supply main body.

The utility model relates to pop -corn shoe sole mould technical field discloses a kind of forming mould for pop -corn shoe sole, including fixed mould component and moving mould;Fixed mould component is equipped with inner benevolence;Fixed mould component is equipped with the middle frame wrapped in inner benevolence;The first slider assembly and the second slider assembly for side hole forming are respectively equipped in the both sides of middle frame;Inner benevolence is equipped with hanging needle insert between middle frame, and hanging needle insert is fixedly connected with middle frame;Moving mould is equipped with lower mould on inner benevolence, and lower mould is equipped with the needle for lifting blank in;Lower mould both sides are equipped with first inclined lifting assembly and second inclined lifting assembly.When opening mould, first slider assembly, second slider assembly are respectively guided to line outwards by second slider assembly, so that first slider assembly, second slider assembly are away from the both sides of middle frame, realize the automatic demoulding of first slider assembly, second slider assembly, simplify demoulding step, effectively shorten demoulding time, significantly improve production efficiency.

The application discloses a kind of clamping spring assembly equipment, including bottom cabinet, clamping spring conveying mechanism, elastic sheet conveying mechanism and middle assembly table, electrical control system is integrated in the bottom cabinet, clamping spring conveying mechanism, elastic sheet conveying mechanism, transition block mechanism are fixedly installed on the bottom cabinet and by electrical control system control operation, clamping spring conveying mechanism and elastic sheet conveying mechanism are respectively used to convey clamping spring and elastic sheet to middle assembly table and assemble.The clamping spring assembly equipment is high in assembly efficiency, high in accuracy, product assembly quality is good, saves labor, and thus high in practicality.

The utility model discloses a light-weight plastic formwork rapid assembling and moving device for a water conservancy project cast-in-place concrete structure, and relates to the technical field of water conservancy projects, in particular to the light-weight plastic formwork rapid assembling and moving device for the water conservancy project cast-in-place concrete structure. A plurality of lead screws are welded to the lower surface of the top beam, the surfaces of the lead screws are sleeved with formworks, inserting holes and clamping grooves are sequentially formed in the two sides of each formwork from top to bottom, and supporting steel pipes are inserted into the inserting holes. The formwork is made of light engineering plastic materials, compared with a steel formwork, the weight is greatly reduced, the manpower and mechanical cost in the transportation and installation process is reduced, and the construction efficiency is improved; the templates are quickly assembled, namely the templates are designed by adopting clamping grooves and clamping blocks, and are matched with supporting steel pipes, lead screws and top beams to be welded into T-shaped brackets, so that the templates are quickly and accurately assembled and supported, the assembling time of a construction site is reduced, and the construction period is shortened.

The application discloses a kind of self-adapting full-automatic terminal equipment, comprising: terminal row, including multiple frame body, and connector unit;First mobile module, the fixed plate is equipped on the action end of the first mobile module, the fixed plate is equipped with compensation component, and the terminal row is connected with compensation component;Compensation component, including the floating seat that is floatingly arranged on the fixed plate, and compensation unit, the fixed plate is equipped with floating space, the compensation unit is placed in floating space, and floating gap is formed at least one side of the floating space;Second mobile module, the correction unit and clamping module are equipped on the second mobile module, the first mobile module drives the correction unit and clamping module about assembly position distance travel, the terminal is carried on the clamping module, and the terminal is assembled with the connector unit in distance position, to realize the accurate assembly of terminal and connector unit.

This utility model relates to the field of automotive tire pressure monitoring and discloses a novel external automotive tire pressure monitoring device, including a connecting part, a protective cover, a PCB board, a first mounting hole, a through-hole, a second mounting hole, and a valve thread groove. The upper end of the connecting part is threadedly connected to the protective cover, and the upper surface of the connecting part is provided with the PCB board. Multiple first mounting holes are formed around the upper surface of the connecting part, and a through-hole is formed in the center of the upper surface of the connecting part. Multiple second mounting holes are formed around the upper surface of the PCB board. In this utility model, the device eliminates built-in hardware and uses a one-time injection-molded all-plastic connecting part, simplifying the process, reducing costs, and avoiding interference from hardware components with the high-frequency antenna. The antenna consists of PCB board circuitry and a metal ring in the center of its upper surface. Precise assembly is achieved by combining the one-to-one correspondence and circular distribution of the first and second mounting holes, improving antenna installation consistency. The metal ring enhances signal gain, ensures stable transmission, and improves practicality.

The utility model discloses a kind of lead-acid battery differential pressure monitoring devices, belong to lead-acid battery monitoring equipment field, a kind of lead-acid battery differential pressure monitoring device, including monitoring mechanism, the lower end of the monitoring mechanism movably installs slide cover mechanism, the inner end of the monitoring mechanism movably installs unlocking mechanism, the slide cover mechanism includes bottom plate, the upper end of the bottom plate both sides is evenly provided with clamping block, the upper end middle part rear side of the bottom plate is equipped with installation slot, the inner end bottom of the installation slot is connected with spring, the upper end of the spring is connected with connecting rod, the upper end of the connecting rod is connected with locking rod;The lead-acid battery differential pressure monitoring device, by setting detachable bottom plate, after bottom plate is fixed with battery by 3M glue, monitoring device can be removed by split mode to complete overhaul maintenance, without peeling film, setting clamping groove is used for connecting clamping block, the quick split and accurate butt joint of work box and bottom plate can be realized, guarantee connection stability.

The utility model relates to the technical field of steel reinforcement framework assembly, aims at solving the problem of arc component steel reinforcement assembly by using traditional flat plate type steel reinforcement assembly mode, and process is complicated, and efficiency is low, and the steel reinforcement assembly quality cannot be guaranteed, and the product quality is influenced, provides an arc component steel reinforcement assembly device, including main body support, a plurality of arc plates are fixedly connected on main body support, and the plurality of arc plates are arranged at intervals, main body support includes two rows of support stand, and the top of each column of support stand is fixedly installed with a piece of steel reinforcement positioning plate respectively, two pieces of steel reinforcement positioning plate are oppositely arranged, and the arc plate is fixedly connected on two pieces of steel reinforcement positioning plate, and the plurality of arc plates are arranged at intervals along the length direction of steel reinforcement positioning plate, the upper portion of steel reinforcement positioning plate is provided with a plurality of first steel reinforcement positioning groove, and the groove is used for placing arc steel reinforcement, the upper portion of arc plate is provided with a plurality of second steel reinforcement positioning groove, and the groove is used for placing longitudinal steel reinforcement, the utility model can improve the assembly efficiency and guarantee the assembly quality.

The tire pressure sensor convenient to assemble comprises a shell assembly, a tire pressure detection assembly and a guide assembly, a containing cavity is formed in the shell assembly, the guide assembly is assembled in the containing cavity, and the tire pressure detection assembly is arranged in the containing cavity. And the guide assembly guides the movement of the tire pressure detection assembly in the assembling direction, so that the tire pressure detection assembly is assembled in the accommodating cavity. Through the mode, the guide assembly guides the assembly of the tire pressure detection assembly, so that the tire pressure detection assembly can be quickly and accurately assembled in the accommodating cavity of the shell assembly, the manual alignment and adjustment time is shortened, and the assembly efficiency is improved.

The utility model discloses a motor assembly terminal equipment, in the wire frame mounting device, first positioning mechanism is used for bearing and positioning motor main part, and hot riveting assembly in hot riveting mechanism is driven its multiple hot riveting head lower part and is abutted on the pin column of motor main part and melts the pin column, in the terminal mounting device, a pair of second positioning mechanism sets up on the rotary table, and the terminal plug -in mechanism includes second lifting drive unit and pressure head, and the pressure head is driven and moves down and is pressed into the terminal in the jack inside being located on the wire frame, and the detection mechanism is used for detecting the depth of terminal press -in jack inside installation. The utility model through first positioning mechanism to motor main part positioning, and hot riveting mechanism realizes the assembly of wire frame and motor main part, and through the cooperation of rotary table, second positioning mechanism and terminal plug -in mechanism realizes the press -in of terminal, and realizes the detection to terminal installation through detection mechanism, can realize the accurate assembly of motor main part, wire frame and terminal, and has improved assembly efficiency.

The application discloses a heat exchange assembly manufacturing device, which comprises a machine base, a first discharging device for discharging heat exchange pipes, a first clamping device for clamping the rear ends of the heat exchange pipes, a second clamping device for clamping the front ends of the heat exchange pipes, a first conveying device for conveying the heat exchange pipes to the first clamping device and the second clamping device, a second discharging device for discharging heat exchange fins, a second conveying device capable of conveying the heat exchange fins from the second discharging device to the front sides of the heat exchange pipes, a first pushing device for clamping the mounting sleeves of the heat exchange fins and sleeving the heat exchange fins into the front ends of the heat exchange pipes one by one, a second pushing device for pushing the heat exchange fins located in the middle of the heat exchange pipes to the rear half of the heat exchange pipes, and a pressing device for pressing the mounting sleeves of the heat exchange fins on the heat exchange pipes to manufacture products. The application aims at overcoming the defects of the prior art and providing a heat exchange assembly manufacturing device capable of improving production efficiency.

The invention relates to the technical field of connectors, in particular to an extended electric connector and a rapid assembling method thereof.The extended electric connector comprises a socket assembly and a plug assembly, the outer side of the plug assembly is rotationally connected with an operation assembly, the socket assembly comprises a female head, the upper end of the female head is fixedly connected with a sliding column, the operation assembly comprises a rotating cylinder, and the inner side, close to the rear end, of the rotating cylinder is provided with a straight channel; the plug assembly comprises a male head, the outer side of the male head is fixedly connected with a clockwork spring and a limiting ring, the outer side of the clockwork spring is fixedly connected to the inner side of the first arc-shaped groove, and a sliding column slides in the second arc-shaped groove. According to the device, rapid and accurate assembly of the male head and the female head of the electric connector is achieved, tedious rotation is avoided, self-locking and disengagement prevention are achieved, stability is guaranteed, damage to parts is avoided, and the requirements for automatic assembly and emergency maintenance and efficient plugging are met.

This utility model relates to the field of X-ray tube assembly and disassembly technology, and in particular to a X-ray tube assembly and disassembly fixture, comprising an assembly and disassembly fixture body and a X-ray tube body. The assembly and disassembly fixture body consists of upper and lower sets of crossbeams, a cathode connecting rod, an anode connecting rod, a support plate, and a fixing plate. The lower crossbeam has cathode connecting rods fixedly connected to both the left and right sides of its interior, and the upper crossbeam has anode connecting rods fixedly connected to both the left and right sides of its interior. By using nuts and replaceable cathode clamp disassembly fixtures, cathode sleeve disassembly fixtures, and anode clamp disassembly fixtures, the precise assembly and disassembly of the anode cover plate, cathode cover plate, and cathode sleeve body at both ends of the X-ray tube along the axial direction can be achieved. The operation is simple and requires no additional adjustment. The assembly and disassembly fixture body, when used in conjunction with a rotating fixture, can achieve 360° rotation of the X-ray tube body, ensuring accurate positioning and reducing human error.

This invention relates to the field of switch technology, and in particular to a front-to-rear air-cooled chassis with quick-release design. It includes a chassis body and a modular fan unit that can be plugged in and out from top to bottom. The fan unit includes a top plate, front and rear mounting plates, a bottom plate, and left and right side plates. The outer sides of the left and right side plates have guide rails that slide in grooves with the guide rails of the chassis body. The bottom plate has guide pins, a power plug, and a speed control feedback plug, which correspond to the guide pin seat plate, power socket, and speed control feedback socket inside the chassis body. The top plate has a folding handle and is fixed to the chassis body with screws. The rear air-exhaust mounting plate has a fan outlet and a viewing port for the plug and socket. This invention has the advantages of quick assembly and disassembly, precise positioning, reliable connection, efficient heat dissipation, and stable operation, and is suitable for rack-mounted electronic equipment such as communication equipment, industrial control computers, servers, and energy storage converters.