634results about How to "Smooth transmission" patented technology

The invention relates to the technical field of electronic transformers, and discloses a passive wireless high-reliability electronic transformer data reporting method, system and device and a medium, and the method comprises the steps: employing different reporting strategies for different types of transformer nodes when the residual electric quantity is lower than a threshold value; and the timeliness of data reporting and the power consumption are effectively balanced. For a mutual inductor node undertaking a core parameter monitoring task, basic report data is sent at the lowest report frequency, stable transmission of core data is ensured, and excessive power consumption is avoided at the same time; and for non-core parameter monitoring task nodes, temperature, voltage and current data are sent at a preset reporting frequency, so that the electric quantity loss is further reduced while important data are reported. And through a mode of temporarily storing other collected data, unnecessary data transmission is avoided, and the use efficiency of the electric quantity is improved. The reliability and the stability of the system are improved.

The optical module provided by the present disclosure comprises a circuit board, a base, a first light emitting component, a second light emitting component, a first light receiving component and a second light receiving component. The circuit board has a first notch part and a second notch part on the surface, and the base is embedded in the first notch part and the second notch part, so as to fix the base on the circuit board. The first light emitting component and the second light emitting component are located on the top surface of the base. The first light emitting component and the second light emitting component are respectively located in different notch parts, so that the wiring space of the circuit board between the first notch part and the second notch part can be used to increase the wiring area. The top surface of the base is used to carry the first light emitting component and the second light emitting component, and the top surface of the base faces the upper surface of the circuit board. The first light receiving component and the second light receiving component are arranged on the lower surface of the circuit board. The three-dimensional deployment and integrated deployment are realized, which is more conducive to wiring and reducing the occupation of the circuit board space, so as to realize multi-channel light emitting and light receiving.

The utility model discloses a kind of impedance adjustable high-speed terminal structures, it is related to high-speed terminal technical field.The impedance adjustable high-speed terminal structure, the outer shell is rectangular, the outer shell both sides are fixedly connected with mounting lug, the mounting lug is L shape, and mounting bolt is threadedly connected on the mounting lug.The impedance adjustable high-speed terminal structure, outer shell is fixed with mounting bolt through L-shaped mounting lug, adapts multiple equipment installation scene, and installation is firm and flexible;Insulating base is fixed by positioning pin and positioning hole, and assembly precision is high, effectively prevent base displacement, guarantee the relative position stability of each component, reduce the influence of vibration on terminal performance, each component is modularized assembly through mounting hole, lower mounting slot and other structure module, installation step is clear, convenient for production and assembly and later maintenance replacement, reduce assembly difficulty and cost.

The utility model relates to electronic protector technical field, concretely is a kind of TVS device with automatic open circuit protection function, including device body, automatic open circuit protection mechanism and pin connecting mechanism, and automatic open circuit protection mechanism and pin connecting mechanism are fixedly connected in the inside of device body, in the utility model, through the setting of fusible wire, temperature sensor and memory alloy spring, the automatic open circuit protection of TVS device when encountering abnormal overcurrent or overvoltage is realized, fusible wire can rapidly fuse, and timely cut off circuit connection, prevent the further expansion of fault range, temperature sensor real-time monitoring temperature, when temperature abnormally rises, memory alloy spring will rapidly change under the signal driving of temperature sensor, the pressure generated by its deformation can assist fusible wire to fuse more quickly when reaching fusing temperature, greatly shorten the response time of automatic open circuit protection, greatly improve the security and reliability of circuit.

The invention relates to the technical field of motor control, in particular to a brushless motor electronic speed regulation circuit for an unmanned aerial vehicle and a control method of the brushless motor electronic speed regulation circuit. The brushless motor electronic speed regulation circuit comprises a printed circuit board, a power supply module and a grid driving module. The printed circuit board is provided with a plurality of wiring layers which are stacked, and comprises a first power supply layer and a second power supply layer which are adjacent to each other in the vertical direction and are overlapped and aligned, and an electrical control layer. The power supply module is arranged on the first power supply layer and the second power supply layer, the first power supply layer and the second power supply layer are electrically connected through a matrix via hole array, and the power supply module is used for being electrically connected with an external power supply and supplying power to a circuit after processing. The grid driving module is arranged on the electrical control layer, is powered by the power supply module and is used for outputting driving voltage to the brushless motor, large current transmission and balanced distribution of the multi-channel motor controller can be realized on a single printed circuit board, and electromagnetic interference of a power loop on a control signal is inhibited.

The utility model relates to connecting pipe technical field discloses a high quality visual electronic cystoscope catheter, including operation handle, the outside fixed connection of operation handle has endoscope catheter, the inside slide connection of endoscope catheter has connecting pipe, the outside fixed connection of connecting pipe has curved end, the outside of operation handle is equipped with a plurality of limit slot, the outside slide connection of limit slot has telescopic mechanism, the outside fixed connection of operation handle has quick -witted mechanism, telescopic mechanism includes follow -up block no.

The utility model relates to the technical field of grain conveying, disclose a raw material conveying device for grain processing, including frame and conveyer belt, both sides of frame are longitudinally rotatable installation has the guide roller, the outer ring of both sides guide roller drive sleeve is placed, the frame surface of one side guide roller front end is installed with the step motor of guide roller drive connection, the inside of the frame below the upper layer conveyer belt is longitudinally provided with the supporting roller, the inside surface of the frame of supporting roller both ends is all set up with the sliding slot. The utility model technical scheme is provided with supporting roller in the bottom of conveyer belt and plays the supporting effect to conveyer belt, the pressure that conveyer belt acts to supporting roller can be detected by pressure sensor, the pressure size is also different when conveying the grain amount is different, and then judge the amount of conveying grain, make the conveyer belt speed increase when the conveying capacity is big, conversely make the conveyer belt speed reduce or stall, and the conveying speed requirement when the grain conveying capacity is big and the power saving demand when the grain conveying capacity is small are taken into account.

The utility model provides an electronic mechanical braking device for a drive-by-wire chassis, and belongs to the technical field of vehicle braking. The electronic mechanical braking device comprises a braking caliper body assembly, a braking transmission assembly, a driving motor connecting assembly and a driving motor. The brake caliper body is a core part of the brake caliper body assembly, an arc-shaped face and a limiting face are arranged in the brake caliper body, and a driving motor connector is arranged at the tail of the brake caliper body. The brake transmission assembly comprises a nut piston sealing cover, a nut piston and a ball screw. The nut piston is provided with an arc-shaped surface, a limiting surface and a sealing groove; the driving motor connecting assembly comprises a spline groove flange plate and a driving motor fixing frame. The electronic mechanical braking device adopts a caliper body integrated configuration scheme, and has the advantages of compact structure, smooth transmission, quick response, high bearing capacity and the like. Meanwhile, the electronic mechanical braking device can adapt to driving motors of different specifications by adjusting the driving motor fixing frame and the spline groove flange plate, and the application scene of the electronic mechanical braking device is expanded.

This utility model provides a fixing device for mounting a shooting device, including an antenna, a fixing mechanism for fixing and connecting the shooting device, and a connecting mechanism. The fixing mechanism includes a fixing base, an adjustment component rotatably mounted on the side wall of the fixing base, and two clamping arms disposed on opposite sides of the fixing base for clamping the shooting device. A fixing hole is provided through the fixing base. The connecting mechanism includes a connecting base and a signal transmission component disposed on the connecting base for electrically connecting the shooting device. The surface of the connecting base facing the fixing base is recessed inward to form a connecting groove for mounting the signal transmission component. The fixing device provided by this utility model ensures the stability and reliability of the connection between the shooting device and the antenna, thereby ensuring stable antenna signal transmission, ensuring the continuity and credibility of key data, and thus ensuring the effectiveness of law enforcement evidence collection and improving work efficiency.

The utility model relates to an in-situ torsion experiment device for X-ray CT (Computed Tomography), and belongs to the technical field of scientific instruments for in-situ torsion experiments for X-ray CT. Comprising a driving assembly, a torque sensor and a clamp assembly. Two ends of a shaft of the torque sensor are respectively connected with the driving assembly and a clamp. The driving assembly comprises a motor, an outer shell, a worm gear and a worm, the worm gear and the worm are rotationally arranged in the outer shell and meshed, the upper end of the worm gear is in key connection with the lower end of the torque sensor, and one end of the worm is connected with the output end of the motor. The driving assembly is stable in transmission during an experiment, has a self-locking function, prevents reverse rotation, improves the detection accuracy, is compact in structure, has a large transmission ratio, is suitable for speed reduction, is low in noise and small in vibration, and effectively prevents the influence on other works in a laboratory.

This utility model discloses an anti-theft installation structure for a smart lock, including an inner component and an outer component. Both the inner and outer components are detachably connected to a mounting plate. The four inner corners of both components are detachably connected to a door panel via fixing components. A lock body is positioned between the inner and outer components, and a password panel is located on the upper outer side of the outer component. This structure provides multiple layers of anti-theft protection through a zinc alloy shell, rigid corner fixing, semiconductor live fingerprint recognition, and embedded touch components. A spare lock cylinder ensures emergency use. Wear-resistant sleeves, insulating protective rings, and a sliding elastic connection structure enhance transmission reliability and lifespan. The modular design, combined with the mounting plate, adapts to door panels of different thicknesses, facilitating easy disassembly and maintenance.

The utility model relates to a rapid demolding driving device for a mold, which comprises a base, a vertical frame, a vibration spring group, a demolding frame, a limiting frame, an auxiliary demolding frame, a vibration motor, a material conveying frame and a stable support frame, the vertical frame vertically arranged on the base is connected with the demolding frame through the vibration spring group, and the limiting frame is longitudinally positioned and arranged on the demolding frame; an auxiliary demolding frame is horizontally and transversely installed on the limiting frame, a vibration motor is located and installed at the rear end of the demolding frame, a material conveying frame is located and installed on the base frame body, and a stable supporting frame is located and installed on a conveying belt of the material conveying frame.

This utility model relates to the field of electromagnetic shielding materials technology, and provides an electromagnetic shielding composite material structure, including a first shielding layer and a protective structure. A second shielding layer is disposed on one side of the first shielding layer, and a protective structure is disposed inside both the first and second shielding layers. By providing the protective structure, when electromagnetic waves are incident on the electromagnetic shielding composite material, the first and second metal film layers effectively reflect most of the electromagnetic waves back to their original direction, thus preventing electromagnetic wave penetration. Furthermore, a heat insulation layer is provided to prevent heat transfer. This heat insulation layer is an electromagnetic shielding heat insulation material with functions such as heat insulation, waterproof sealing, and corrosion resistance, thereby protecting the internal structure or equipment of the composite material from the effects of high-temperature environments. Finally, a wear-resistant layer is made of transparent PET material, which has properties such as abrasion resistance and corrosion resistance.

The present application relates to the field of smart meter data acquisition, especially to a CPU occupancy-based meter data acquisition optimization method and system, the method comprising: obtaining the signal strength and working state of concentrator and meter nodes, establishing a data acquisition network model and calculating the load rate to reflect the network busy degree. Vector coding is used to generate initial particle swarm, each particle represents a data acquisition path, the transmission efficiency and communication quality of the path are evaluated, and the path score is obtained by weighted fusion based on the load rate. The particle with the highest score is selected as the global optimal solution to guide the particle swarm learning, the learning ratio is adjusted through the negative exponential function, the parent node vector is updated and iteratively optimized until the score no longer improves, the optimal path is output, and the data acquisition path optimization is completed. The present application dynamically adjusts the weight and optimization strategy, adapts to network changes, reduces the hop count, avoids weak signal links, and improves the transmission efficiency and stability of the data acquisition path.

The utility model relates to the field of non - woven fabric drying, especially a kind of non - woven fabric processing oven equipment, technical scheme: a kind of non - woven fabric processing oven equipment, including lower drying box and the cloth automatic feeding and discharging structure with cleaning function being set on lower drying box, cloth automatic feeding and discharging structure include the first roller bracket and the second roller bracket being set in the front and back two sides of lower drying box, rotate and install the cleaning brush roller of two groups of upper and lower symmetrical distribution in third roller bracket and the two groups of dust suction head being set in the front and back two sides of cleaning brush roller, the utility model is cleaned in real time by cleaning brush roller pretreatment and negative pressure suction, double guarantee product cleanliness, cooperate through the dislocation gap guide of feeding plate and discharge plate, the tension control of tensioning roller and the support of bearing net board, ensure that transmission process is stable, avoid morphological defect, solve the problem that existing horizontal non - woven fabric oven equipment is difficult to carry out pretreatment on the surface of non - woven fabric when using.

This application relates to a photovoltaic cell conveying device, comprising: a drive unit; a conveyor belt wound around the drive unit, the conveyor belt being capable of cyclic movement under the drive of the drive unit, the conveyor belt having a negative pressure chamber, the chamber wall of which has adsorption holes connecting the negative pressure chamber to the external atmosphere; wherein, the conveyor belt is capable of undergoing recoverable deformation under the action of the drive unit to change the volume of the negative pressure chamber. In the above-mentioned photovoltaic cell conveying device, the conveyor belt cyclically moves under the drive of the drive unit to realize the conveying of the cells. Since the formation of the negative pressure environment in the negative pressure chamber relies solely on the action of the drive unit and the deformation of the conveyor belt itself, the structure of this photovoltaic cell conveying device is simple and reliable, eliminating the need for external vacuum equipment and complex connecting pipelines, thus avoiding the problems of large space occupation, high energy consumption, high noise and heat generation caused by the installation of external vacuum equipment, and significantly reducing production costs.

This invention provides a device for cleaning and removing burrs from the surface of co-extruded sheets, belonging to the field of sheet metal cleaning technology. It includes a heating shell, which heats and shrinks burrs on the sheet metal surface into granules for easier subsequent burr removal; a conveying assembly, which transports the sheet metal into the heating shell for processing and outputs the processed sheet metal; two conveying assemblies are provided on both sides of the heating shell; and a polishing assembly, which polishes the granules on the surface of the sheet metal after heating, located on the left side of the heating shell and to the right of the left conveying assembly. This invention solves the problem of burrs remaining on the surface of co-extruded sheets during processing, which results in substandard sheet quality and potential harm to workers, necessitating the removal of these burrs during processing.

The utility model provides equipment cavity temperature measurement system and with the equipment cavity of heating function. Equipment cavity temperature measurement system is used for carrying out temperature measurement to n heating plate in equipment cavity, it includes n thermocouple, first support, n thermoelectric signal transmission wire and thermoelectric signal output module, n thermoelectric signal transmission wire with n thermocouple is connected respectively through n male female matching connecting joint, n male female matching connecting joint and n thermoelectric signal transmission wire are along first support setting, thermoelectric signal output module with n thermoelectric signal transmission wire is connected and transmits n thermoelectric signal to equipment cavity outside, equipment cavity temperature measurement system still includes the n thermocouple pressure block of setting respectively on n heating plate, through the adjustment of each thermocouple pressure block to make the thermocouple and corresponding heating plate contact. The utility model can realize the thermoelectric signal stable collection, transmission of thermocouple, reduce temperature measurement error, installation difficulty and manufacturing cost.

The utility model provides a kind of angle starting position adjustable type split and combination subassembly of interlocking mechanism, including first pivot, the first pivot is fixedly connected with limit elbow, the outside rotation of the first pivot is connected with second pivot, plunger screw is equipped on the limit elbow, the outer end of the second pivot is equipped with auxiliary switch of coupling by bolt, during the application of this technical solution, it faces different angle design of interlocking mechanism transmission part, without modification main body, by adjustable structure of limit elbow and first pivot, plunger screw compensates the movement angle of second pivot, different transmission angle demand can be adapted, the versatility in multiple interlocking mechanisms is improved;Second, indication accuracy is high, plunger screw can absorb the movement deviation of rotating shaft, limit elbow angle adjustable correction shielding deviation, correct transmission part machining and debugging error, avoid misindication, ensure in-place indication reliable, fill the existing indication structure adaptation limitation, precision is susceptible to error influence blank.

The utility model relates to the technical field of drying devices for enameled wire production, and discloses a drying device for enameled wire production, which comprises a drying box penetrating left and right, and two supports arranged at intervals are fixedly arranged on the lower end face of the drying box and used for supporting the drying box. The opening adjusting devices are arranged at the two ends of the drying box and used for adjusting the opening, in addition, the circulating hot air blowing device is arranged on the drying box and used for providing continuous circulating hot air for an inner cavity of the drying box, and energy consumption is effectively reduced. The positions of different air outlets can be adjusted according to products with different diameters by adjusting the inserting plate, hot air loss is effectively reduced, energy consumption is reduced, and energy consumption is effectively reduced through circulating hot air of the hot drying circulating pipe.

The utility model provides a kind of vacuum chamber sealing door, including sealing cover and lifting mechanism, the front and back of sealing cover are equipped with the opening allowing material to go in and out;Two vertical sliding rails are equipped on the inner side wall of sealing cover, door frame is slidably installed on sliding rail, door body is slidably installed in door frame, limit block is equipped in sealing cover inside;Guiding hole is equipped in the side wall of door frame, guiding pin matched with guiding hole is equipped in the side wall of door body, sealing ring is equipped on the abutting surface of door body and sealing cover.The utility model determines the height position of door body by limit block, and utilizes the constraint of guiding hole, forcibly drives door body to move horizontally when door frame continues to drop, so that it is automatically pressed in the inner side of sealing cover opening, converts lifting movement directly into sealing pressing force, without additional pressing device, simplify overall structure and improve action reliability, significantly reduce the complexity of equipment, manufacturing cost and maintenance difficulty, while ensuring that sealing performance meets the stringent requirements of vacuum chamber.

The utility model relates to the technical field of ceramic tile transmission, and discloses a translation type elevator for ceramic tile transmission, which comprises a rack, a guide plate, an annular transmission component and a plurality of moving components, an annular rail is arranged on the vertical face of the rack, and an annular conveying assembly is installed in the annular rail and used for driving the multiple moving assemblies to move circularly along the annular rail. The guide plate is mounted on the rack and is provided with a guide rail; the guide rail is positioned behind the annular rail; the moving assembly comprises a fixing frame, a bracket, a first supporting part and at least three second supporting parts. The problems that when a conventional lifting device which moves in a reciprocating mode is used, the reciprocating speed is increased to improve the conveying efficiency, meanwhile, shaking of the device is inevitably large, the ceramic tile quality is affected, and the conveying efficiency is limited by inertia force and is difficult to further improve are solved.

The utility model discloses a compression-resistant insulating flame-retardant cable, which relates to the technical field of wires and cables and comprises a first cable core and three second cable cores, the first cable core and the three second cable cores are all arranged in the same inner filling layer, and three first shearing openings distributed in a central symmetry manner are arranged on the inner filling layer. The three first shearing openings are respectively located between two adjacent second cable cores, the inner filling layer is arranged in the outer sheath, the outer sheath is provided with three second shearing openings which are distributed in a central symmetry manner, and the three second shearing openings are respectively arranged opposite to the three first shearing openings; according to the utility model, the inner filling layer and the outer sheath are respectively provided with the first shearing opening and the second shearing opening, so that great convenience is provided for the maintenance of the cable, and when maintenance is needed, a technician can easily shear or rip a corresponding part without damaging the whole cable, thereby greatly shortening the maintenance time and improving the maintenance efficiency. And the maintenance cost is reduced.

The application provides an intelligent cruise garbage pickup and classification vehicle, method, equipment and medium to solve the problem that the existing laser radar can only obtain two-dimensional point cloud data and cannot identify garbage material, volume and other characteristics. The garbage pickup and classification vehicle comprises the following components: an upper computer, a lower computer, a laser radar, a depth camera, an odometer, an IMU, a mechanical arm and a wireless communication port. Through the heterogeneous data cooperation of the laser radar and the depth camera, the limitations of a single sensor are effectively eliminated. The laser radar provides high-precision two-dimensional spatial information, and the depth camera supplements three-dimensional geometric and visual semantic features, significantly enhancing the comprehensive perception ability of the garbage material, shape and volume. This fusion not only solves the problem of garbage material misjudgment in the traditional scheme, but also supports the adaptive grabbing strategy of the mechanical arm, reducing the risk of grabbing failure caused by environmental complexity. A double-bus communication redundancy design is adopted to ensure the stable transmission of key signals.

This application relates to the field of test fixture technology and discloses a high-resistance test fixture, including tweezers contacts, an interface and shielding assembly, an overvoltage protection circuit, a resistor network, a filter capacitor C1, and a shielded cable. The interface and shielding assembly includes a triaxial connector and a coaxial connector interface. The output end of the coaxial connector interface is connected to the input end of the overvoltage protection circuit. The triaxial connector has a Low end and a Guard end; the Low end is connected to the output end of the resistor network, and the Guard end is connected to the shielding layer of the shielded cable. The input end of the overvoltage protection circuit is connected to the output end of the coaxial connector interface. The tweezers contacts are connected to surface-mount devices, with the low-voltage end of the tweezers contacts connected to the Low end and the high-voltage end of the tweezers contacts connected to the output end of the resistor network. The first end of the filter capacitor C1 is connected between the resistor network and the tweezers contacts, and the second end of the filter capacitor C1 is grounded. Using this application can improve the testing efficiency, reliability, safety, and accuracy of high-resistance testing results.

The application discloses a PVC sheath hot-pressing device and relates to the technical field of PVC sheath processing.The device comprises a rack, a hot-pressing assembly and a material taking assembly.A cushion plate is arranged on the rack, one side of the cushion plate is provided with a limiting block one, a plurality of limiting holes one for placing PVC sheaths are arranged on the limiting block one, the other side of the cushion plate is provided with a limiting block two, a plurality of limiting holes two for inserting wire harnesses are arranged on the limiting block two, the hot-pressing assembly is arranged on the rack and is used for hot-pressing the PVC sheaths on the cushion plate to the wire harnesses, and the material taking assembly is arranged on the rack and the cushion plate and is used for taking out the hot-pressed PVC sheaths from the limiting block one.The device is provided with an automatic material taking assembly, and the mechanized discharging can avoid the contact of personnel with high-temperature PVC sheaths, thus avoiding the risk of scalding from the root.The application automatically completes sheath taking out and lifting through a cylinder, a rack and a gear transmission, and the production efficiency is improved.The multiple limiting and supporting structures guarantee smooth and accurate operation, avoid sheath deformation, and ensure product quality and batch production consistency.

This invention belongs to the field of space laser communication and deep space exploration technology, and discloses an integrated detection device for space laser communication monitoring and interaction. The device includes a main body, on which are integrated a solar panel, a navigation imaging device, a communication antenna, a communication receiver, a radar, a landing support, and functional components for communication monitoring, environmental perception, and interactive operation. This invention forms a closed-loop system through electrical, signal, and mechanical connections, enabling simultaneous execution of multiple tasks, significantly improving the device's space operation efficiency, reducing the load pressure on space launch vehicles, and adapting to the space constraints of on-orbit operations. The communication antenna and receiver achieve bidirectional signal interaction through a high-speed laser communication module and are linked with the navigation imaging device and environmental sensors to ensure stable transmission and status monitoring of laser communication signals, which is beneficial for practical applications and operations.

The utility model provides a kind of pole piece buffer transfer equipment and pole piece processing system, it includes: stacking buffer mechanism, it includes mounting plate and open-close component, open-close component includes two moving plates and two fences, two moving plates are slidably connected in mounting plate, two fences are collectively enclosed and are stacked space, and clamping groove is equipped on moving plate;Transport mechanism, it includes guide component and clamping component, clamping component moves through guide component, clamping component includes two clamps and bidirectional driver, two clamps are connected bidirectional driver, and clamping protrusion is equipped on clamp.The utility model in, stacking buffer mechanism can be suitable for fixing different models of pole piece by the setting of open-close component, and transport mechanism can also realize the stable transmission process to pole piece of array by the height cooperation between it and moving plate.Compared with the conventional transport technology of present stage, the present application has the significant advantages of flexible use, easy control, stable transfer, strong controllability and wide use range.

The utility model discloses a kind of connectors for inverter, including connector shell and the electric conductor being set in the connector shell, the one end of electric conductor is connected with the internal electrical element of plate end assembly, the other end of electric conductor is connected with external photovoltaic module;The connector shell includes connector main body and nut, connector main body is provided with boss, boss is located plate end assembly inside and is abutted with plate end assembly, so that the outside end of connector main body protrudes the through-hole of plate end assembly, the outside end of connector main body is provided with screw thread, when nut and the outside end of connector main body are cooperated screw thread connection, connector main body is fixedly connected with plate end assembly;It further includes the anti-back pad for preventing nut back rotation between plate end assembly and nut, in the structure, by the setting of anti-back pad, effectively prevent nut loosening and falling off in use process, to enhance the stability of connector for inverter, avoid the connection failure problem caused by nut loosening.

This utility model belongs to the technical field of telescopic drive shafts, specifically relating to a high-strength telescopic drive shaft. The high-strength telescopic drive shaft includes a first shaft body, with an outer cylinder fixedly connected to the left side of the first shaft body. A connecting groove is formed on the inner wall of the outer cylinder, and an inner cylinder is disposed inside the outer cylinder. A rectangular hole is formed inside the inner cylinder. Through the cooperation of the inner cylinder, rectangular hole, connecting column, trapezoidal block, threaded column, sliding groove, sliding column, trapezoidal groove, first retaining ring, nut, and second retaining ring, when a gap arises between the connecting column and the connecting groove due to wear, rotating the nut increases the distance between the connecting column and the sliding column, compensating for the wear-induced gap. This allows the connecting block and the connecting groove to regain a stable fit, enabling the drive shaft to continue transmitting power stably and effectively reducing the maintenance cost of the drive shaft.