651 results about "Work safety" patented technology

The invention discloses a live-line work safety monitoring system based on artificial intelligence, and relates to the technical field of intelligent electric power safety, and the system comprises a data collection module which is used for collecting and preprocessing work data in a live-line work area in real time, and extracting live-line body point cloud data based on the work data; the finite element grid unit is used for dividing all charged bodies into finite element grid units and judging high-temperature charged bodies; and the violation judgment module is used for calculating the electric field intensity value of the position where the operator is located in real time. By combining an electric field, a temperature field and three-dimensional point cloud multi-modal data, comprehensive dynamic perception of an operation area is realized, finite element modeling and dynamic non-uniform heat source distribution analysis are adopted, a high-temperature charged body is accurately identified, the equipment fault early warning capability is improved, action characteristics of an operator are captured through a long-short-term memory network, and the working efficiency is improved. And the illegal behaviors are accurately judged by dynamically combining environmental data, and an optimal operation path is generated in real time by utilizing a three-dimensional grid division and dynamic planning algorithm.

The invention discloses a video analysis-based multi-scene operator violation behavior identification method and system, and belongs to the technical field of intelligent operation safety monitoring and artificial intelligence identification, and the method comprises the steps: collecting a real-time video stream of a multi-scene operation site; recognizing a continuous action time sequence in the real-time video stream by using an action recognition depth model; constructing the continuous action time sequence into an action behavior sequence; the action behavior sequence is constructed into a directed behavior graph with time, space and action labels, the directed behavior graph is compared with a directed behavior graph corresponding to the standard action behavior sequence, and illegal behaviors are recognized; and carrying out multi-mode early warning on the identified illegal behaviors. According to the method, the bottleneck that the traditional image recognition technology is weak in action sequence semantic understanding and poor in environmental adaptability is broken through, and accurate recognition and real-time early warning of illegal behaviors in multi-scene operation are achieved.

The invention discloses an intelligent manufacturing workstation safety control system oriented to man-machine cooperation, and belongs to the technical field of intelligent manufacturing and man-machine cooperation. The system comprises a multi-modal sensor array, a personnel state sensing module, a robot state monitoring module, a dynamic safety area adaptive calculation module, an intention prediction and risk assessment module, a cooperative control decision module and an execution feedback module. The dynamic safety area self-adaptive calculation module constructs geometric representation of a man-machine interaction space based on a topological manifold theory, and calculates a dynamic safety boundary in real time; the intention prediction and risk assessment module is fused with multi-source information to predict a future trajectory of a person and assess a collision risk; the cooperative control decision module performs multi-objective optimization with safety and efficiency as double objectives to generate an optimal adjustment strategy, the system realizes prospective safety control based on intention prediction, the cooperative efficiency is improved by 25%-45% on the premise of guaranteeing safety, and the working safety accident rate is reduced to be close to zero.

The invention discloses a transformer substation hoisting operation suspension arm movement distance monitoring device, and belongs to the technical field of distance monitoring. A transformer substation hoisting operation suspension arm moving distance monitoring device comprises a bottom plate, a rotating mechanism is installed in the middle of the bottom plate, a rotating plate is installed on the rotating mechanism, a suspension arm body is installed on the rotating plate, an installing base is installed on the top of the suspension arm body, a driving box is fixed to the installing base, and a distance monitoring mechanism is installed in the driving box. Supporting mechanisms are installed at the four corners of the bottom plate. The problem that when an existing hoisting mechanism works, a full-time worker needs to stand on the ground and look up with naked eyes for observation and judgment, and the working safety of a crane is affected due to low accuracy is solved, the safety distance of a hoisting arm body does not need to be manually observed with the naked eyes, the working safety of the hoisting arm body is improved, and the working efficiency is improved. And normal work of the suspension arm body is guaranteed, so that the working efficiency is improved, and dust and impurities are prevented from entering the driving box.

The invention discloses a coal mine underground safety detection method and system based on face image recognition, and relates to the technical field of coal mine safety detection. The method comprises the following specific implementation steps: through a video target recognition technology and a self-adaptive face recognition method, recognizing the identity of a miner and the wearing condition of safety equipment in each working area, and obtaining a miner number and a first danger index; secondly, according to the motion trail matching and behavior analysis technology, analyzing the danger degree of various behaviors of the miner to obtain a second danger index; then, according to the environmental parameters, evaluating the danger level of the miner working environment, and calculating a third danger index; finally, in combination with the danger index of the miner and the danger degree of the working area, the working safety condition of the miner is comprehensively evaluated, the comprehensive danger index is obtained, danger grading is carried out, early warning information can be sent out in time, the safety risk of underground operation of the coal mine can be effectively reduced, the safety of operators is ensured, and safety accidents are reduced.

The invention relates to the technical field of plate processing, and discloses a furniture plate processing filing device which comprises a bottom plate fixedly mounted at the top of a workbench, a rear plate is integrally formed at the top of the bottom plate, a shaft seat is fixedly mounted at the top of the bottom plate, and a rotatable rotating shaft is mounted on the outer wall of the shaft seat; and a driving connecting rod is fixedly mounted on the outer wall of the rotating shaft. The file can mechanically file a plate through reciprocating pressing and releasing of the fulcrum block on the file, and the plate is filed only when the file moves forward, so that the frequency of manual operation is reduced, the risk that an operator is accidentally injured is reduced, the working safety is improved, and the working efficiency is improved. And the file only exerts force when moving close to the plate and loosens when moving away from the plate, so that the process is repeated, only the cutting edge of the file is used for filing the plate in the filing process, the abrasion of the cutting edge of the file is reduced, and the service life of the file is prolonged.

The invention belongs to the technical field of disc tool magazines, and particularly relates to a disc tool magazine tool reversing device which comprises a tool rest box, a rotating disc is rotationally arranged in the tool rest box and connected with a rotating motor, a tool outlet is formed in the bottom of the tool rest box, and mounting frames distributed in an annular array mode are arranged on the outer side of the circumference of the rotating disc. Sliding blocks are slidably connected to the two sides of the mounting frame in a limiting mode and slide in the radial direction of the rotary disc in a limiting mode, a tool sleeve structure is rotationally connected between the two sliding blocks through a torsional spring, a rotary driving mechanism and a pushing mechanism are arranged at the positions, corresponding to the tool outlets, of the tool rest box, and the rotary driving mechanism pushes the tool sleeve structure to rotate. And the pushing mechanism downwards pushes the sliding block and the knife pouch structure. When the tool pouch structure is in a horizontal placement state, the horizontal extension distance of the tool bit is reduced so as to reduce the movement range of the tool bit to ensure the working safety, and the distance of the tool bit extending out of the tool outlet is increased when the tool bit is taken.

The invention discloses a security and disinfection integrated big data platform regulation and control method based on artificial intelligence, and relates to the technical field of safety production and fire-fighting management, and the method comprises the steps: obtaining operation data and historical data, carrying out the standardization processing of the operation data, generating a training data set, training and constructing a deep convolutional neural network model, spatial correlation features are extracted through multilayer convolution operation, key state information is identified in combination with an attention mechanism, and a feature mapping matrix is generated; inputting the feature mapping matrix into a constructed safety evaluation model, calculating a safety risk index, and dividing risk levels according to the safety risk index; and generating an inspection task list according to a risk grade division result, and issuing the inspection task list to the mobile terminal for execution, thereby realizing dynamic regulation and control of the security risk. The technical bottlenecks of a traditional security and disinfection integrated platform in the aspects of data analysis, risk identification, management and control and the like are broken through, intellectualization and precision of security risk management are achieved, and the security management efficiency is improved.

The invention provides an intelligent supervision system and method for safety production liability insurance, and is applied to the technical field of supervision science and technology. The system comprises an enterprise port, an insurance institution port, a supervision department port and a background port, and integrates four modules: an automatic safety insurance data matching module synchronizes insurance buying information in real time and generates a supervision form; the safety production state monitoring module collects enterprise data to support risk assessment and provide accident prevention service; the accident prevention service evaluation module judges validity through data comparison before and after service and tracks and rectifies the data; and the data statistical analysis module realizes multi-dimensional query, dynamic ranking and visualization. According to the method, data collection, state monitoring, effect evaluation and rectification closed-loop management are realized through multi-port deployment, and a supervision mechanism of enterprise evaluation and supervision reward and punishment linkage is established. According to the invention, through cross-department data intercommunication, the problems of information isolated island and supervision lagging of the traditional responsibility insurance are effectively solved, and the supervision efficiency of the responsibility insurance is remarkably improved.

A helmet, which can, for instance, be a sports helmet or a work safety helmet, comprises a helmet body that comprises a solid foam of expanded foam particles, wherein the solid foam at least regionally has a varying hardness.

The utility model discloses a pipe fitting clamping mechanism and a positioning device, and relates to the pipe fitting clamping technology. And according to the cutting length of the needed pipe fitting, the first threaded rod is rotated, so that the limiting plate gradually gets close to or away from the cutting area under the action of threaded transmission of the first threaded rod and limiting of the first sliding groove. The purpose that workers can conveniently adjust the distance between the limiting plate and the cutting interval is achieved. And the to-be-cut pipe fitting is arranged in the first clamping channel in a penetrating mode, and the end of the to-be-cut pipe fitting abuts against the limiting plate. And the first driving piece is operated to drive the first clamping arm and the second clamping arm to get close to each other, so that the to-be-cut pipe fitting is clamped in the first clamping channel between the first clamping arm and the second clamping arm. And the purposes of improving the stability in the pipe fitting cutting process and further improving the pipe fitting cutting precision are achieved. And meanwhile, the purposes of reducing the displacement risk of the pipe fitting and further enhancing the working safety are achieved. And on the other hand, the purpose that pipe fittings with different diameters can be clamped between the first clamping arm and the second clamping arm is achieved.

The invention provides a man-machine interaction safety dynamic early warning method based on digital twinning and behavior prediction, and the method comprises the steps: S1, collecting the real-time data of a working site through a sensing layer, and enabling the data to comprise the personnel position, equipment state and environment information; s2, constructing a digital twin model based on the acquired data, wherein the model maps the dynamic state of a working site in real time; s3, generating a personnel behavior track and an equipment action range through a prediction algorithm, and calculating a dynamic risk field to evaluate space-time conflicts; s4, according to the risk value of the dynamic risk field, triggering a multi-stage early warning mechanism to reduce the risk of the operation field; and S5, displaying the real-time state and risk information in the digital twinborn model through a visual interface. According to the invention, through deep fusion of digital twinning and dynamic risk prediction, real-time monitoring and accurate prevention and control of the safety risk of the operation site are realized, and the safety management efficiency and the operation safety are greatly improved.

The invention belongs to the technical field of aerial work auxiliary tools, and particularly discloses a tower climbing anti-falling device based on unmanned aerial vehicle auxiliary installation. The hanging assembly comprises a hanging frame butt joint unit and a hanging frame, and the hanging frame butt joint unit is in vertical sliding fit with the hanging frame. The hanging frame is horizontally matched with a shrinkage sliding block in a sliding mode, and a driving piece is arranged on the hanging frame. A locking device is connected to the contraction sliding block, and a locking strip is arranged on the hanging frame. The hanger butt joint unit is connected with a connecting piece, and the connecting piece is connected with a locking device; when the hanging frame butt joint unit slides upwards, the connecting piece drives the locking device and the locking strip to be unlocked, and at the moment, the connecting piece can drive the contraction sliding block to move to the starting point position. When the hanging frame butt-joint unit slides downwards and resets, the connecting piece drives the locking device and the locking strip to be locked, and at the moment, the driving piece can drive the contraction sliding block to move towards the terminal position. The anti-falling device can play an anti-falling role, and the operation safety is improved.

The invention discloses an aerial work platform intelligent supervision method and system based on data analysis. The method comprises the following steps: S1, collecting operation state data of an aerial work platform and behavior video stream data of an operator; s2, inputting a dynamic time warping network to carry out cross-modal time alignment, and outputting a key state feature sequence; s3, inputting the behavior video stream into a double-path Transform model, and generating an operation behavior representation sequence; s4, jointly modeling key state features and behavior characterization, and constructing a risk scoring function; s5, the risk scoring result is compared with a grade threshold value, an early warning mechanism is triggered, and a control instruction is generated; s6, executing platform control actions, such as speed limiting, descent, locking, pause and recording feedback; and S7, updating the model by taking the key state characteristics, the behavior characterization, the scoring result and the feedback as samples. According to the invention, intelligent identification and early warning of high-altitude operation states and behaviors are realized, and operation safety and supervision efficiency are improved.

The invention belongs to the technical field of scaffolds composed of wheels, and particularly relates to an operation platform applied to a photovoltaic power station and a using method thereof.The operation platform comprises a movable seat, an operation table arranged above the movable seat and a safety frame fixed to the top of the operation table; the device further comprises two rotating shafts, the two rotating shafts rotate at the top of the movable base and the bottom of the operation table through the bases correspondingly, and the outer walls of the two rotating shafts are fixedly sleeved with two synchronous wheels correspondingly. And the two synchronous wheels located on the same side are in transmission connection with the same synchronous belt, and a plurality of L-shaped blocks are fixed to the outer wall of the synchronous belt. According to the photovoltaic panel conveying device, when the operation table ascends, photovoltaic panels are effectively conveyed through cooperation of an L-shaped block and a synchronous belt, the conveying difficulty of the photovoltaic panels is lowered, the working safety degree of workers is improved, in addition, through rotation of a rotating rod, the workers can be effectively shaded through sunshade cloth, and the working efficiency is improved. And a comfortable working environment can be provided for workers.

This invention relates to a method and system for intelligent analysis of rooftop work behavior and foreign object detection in electric locomotives. The system includes maintenance personnel climbing onto the roof and inputting video stream data from a camera above the roof into a target detection module. The target detection module performs image preprocessing on the input video stream and then detects rooftop maintenance actions and safety ropes. Once the maintenance personnel are stationary, foreign object detection is performed on the roof. This invention assists operators of disconnecting switches in monitoring and analyzing the maintenance process on electric locomotive rooftops. It provides real-time monitoring and automatic alarms for work processes, actions, and tool status, reducing the risk of tool residue, standardizing work processes, and ensuring the safety of workers. This system represents a shift from traditional manual monitoring to intelligent and automated monitoring, providing strong technical support for rooftop work safety, tool management, and process traceability in electric locomotives.

The invention provides a supporting structure, an oven and a using method. The oven comprises an oven body, an oven door, an oven tray and the supporting structure, and the bottom of the oven door is rotationally connected to the bottom of an opening of the oven body; the supporting structure is installed on one side of the inner wall face of the box door. The supporting structure comprises a motor and a lead screw. The screw rod is rotationally erected and supported through a bearing seat; two threaded sections with opposite spiral directions are arranged on the lead screw, the threaded sections are sleeved with sliding sleeves, and push blocks are mounted on the top surfaces of the sliding sleeves; the sides, close to the center of the lead screw, of the push blocks are rotationally connected with supporting plates, and the ends of the two supporting plates are movably connected through a supporting plate. The lead screw is driven by a motor to drive the two sliding sleeves to move, and therefore the supporting plate is driven to ascend and descend. The baking tray dragging device can stably support a baking tray dragged to the outside, two hands can be released for intermediate operation, and efficiency and operation safety can be improved.

The invention discloses a weld joint identification method based on visual inspection. The method comprises an image acquisition module, a data preprocessing module, a deep learning detection module, an image segmentation and contour extraction module, a weld joint parameter calculation module, a result visualization module, a real-time optimization module and the like. According to the method, the detection precision is improved, the generalization ability of the model in a complex scene is remarkably improved, the adaptability is enhanced, the real-time performance of the system is remarkably improved by optimizing an algorithm structure and a hardware acceleration scheme, a comprehensive evaluation function is added, and multi-dimensional evaluation indexes are provided for the welding seam quality; in addition, the method can also be applied to welding quality control in industrial production, helps enterprises to reduce the rework rate and material waste, and is expected to save 10%-15% of production cost for related welding industries. The objective and reliable welding seam quality evaluation method is provided, the fairness and accuracy of special operation examinations are improved, and the skill level and work safety of special operators can be improved.

The utility model relates to the technical field of greenhouses, in particular to a sunshade net for greenhouse planting, which comprises a greenhouse body, a sunshade net body and a covering and collecting assembly, a walking motor drives a walking gear to rotate, the walking gear moves along walking teeth on a walking frame, a walking box drives a limiting sliding block to move in a limiting sliding groove, and the sunshade net body is driven by a motor to rotate. Walking work is limited, work safety is improved, a walking box drives a covering rod to move in a covering groove, the covering rod drives a sunshade net body to move, the sunshade net body drives a retracting column to rotate, a coil spring deforms, the sunshade net body conducts sunshade covering work on a greenhouse body according to use requirements, the covering range is controlled, and the greenhouse is more convenient to use. The walking gear rotates reversely, the covering rod drives the sunshade net body to move towards the initial position, under the action of return of the coil spring, the sunshade net body is wound through the winding column, manual covering and winding are not needed, the working cost is reduced, and the working efficiency is improved.

The push-pull type guardrail of the reversed loader comprises an overhead rail and a plurality of protective nets which are located below the overhead rail and can be folded and stretched, the heads and the tails of the protective nets are rotationally connected through hinges, and the middle portion of the top end of each protective net is provided with a moving assembly in rolling connection with the overhead rail through a U-shaped support. When the transfer machine runs, only the protective nets need to be pulled open, all the protective nets are unfolded to form a barrier, a warning board is hung on the protective nets, personnel entering an equipment operation area can be greatly reduced, a good warning effect is achieved, the protective nets are hung below the hanging rail, personnel carrying is not needed, and the safety of the transfer machine is improved. And the situation that the personnel deliberately move away and do not use is completely eradicated, the working safety environment is improved, and the habitual violation phenomenon of the personnel is reduced.

The invention provides a safety management and control method based on multi-source fusion safety helmet positioning and a related device, and relates to the technical field of operation safety management and control. Indoor and outdoor seamless positioning is realized through the multi-source positioning module, a grading alarm strategy is generated by combining behavior portraits with safety rule matching, the problems of positioning fault, risk identification lag and alarm extensibility of a traditional scheme are solved, and the method has the advantages of improving positioning reliability, enhancing risk perception real-time performance and reducing false alarm rate.

The invention relates to an engineering machinery remote control method and device based on the Internet of Things, equipment and a medium. The method comprises the following steps: acquiring multi-source data of a working site, and after preprocessing, separating key features by using an optimized support vector machine model to obtain a key feature set; based on the set, utilizing a deep neural network to fuse multi-source data to generate an integration state model, and synchronously and dynamically adjusting data acquisition frequency according to network bandwidth fluctuation to obtain a final integration state model; the transmission delay of the data is evaluated, semantic classification and compression are carried out on the optimized data, and a visual interface is generated after transmission analysis; and acquiring interface interaction data, converting the interface interaction data into a control instruction, calculating a signal parameter modification value, verifying control delay compliance, and finally generating remote control response data containing execution confirmation information. By adopting the method, the intelligent level and the operation safety of remote control of the engineering machinery are remarkably improved, and the labor and operation and maintenance cost is reduced.

The invention discloses a railway special line taking, sending and shunting operation monitoring system, which is constructed by combining a plane shunting lamp display subsystem, a non-centralized area shunting monitoring subsystem and a shunting operation auxiliary subsystem, and is connected to a marshalling station integrated automation system. Monitoring of taking, sending and shunting operation of the railway special line is effectively achieved, working efficiency is improved, and working safety is guaranteed.

The invention discloses a hob abrasion monitoring device. The device comprises a cutter shaft capable of rotating, a cutter body fixedly mounted on the cutter shaft, a cutter head fixedly mounted on the cutter body, a pressure sensor which is arranged at the cutter shaft and can detect the pressure of a hob, and a torque sensor which is arranged at the cutter shaft and can detect the torque of the hob, the cutter box is arranged on one side edge of the cutter shaft and covers the cutter body and the cutter head located on the side edge, the counting device is arranged in the cutter box and can calculate the actual rotating distance of the hob, and the surrounding rock abrasion detection device is arranged on the surface of the cutter head and can quantitatively evaluate the abrasiveness of surrounding rock. According to the invention, real-time, accurate and comprehensive monitoring of the abrasion state of the hob is realized, the working safety and efficiency of the TBM are improved, the operation cost is reduced, technical innovation and development in the field of underground engineering construction are promoted, reference is provided for on-site constructors, the utilization efficiency of the hob is improved, the abnormal abrasion risk is reduced, and the construction cost is saved.

The invention provides a fire operation safety management system, which belongs to the technical field of operation safety supervision and comprises an operation application unit, a measure confirmation unit, an operation examination and approval unit, a start confirmation unit, an operation implementation unit and an operation completion unit. The measure confirmation unit matches and confirms operation safety measures; the job approval unit matches an approval process including multi-stage approval and face recognition verification; the work starting confirmation unit verifies the tools, senses the environment and secondarily confirms gas monitoring; the operation implementation unit is linked with data to supervise the operation state; and the work completion unit guides acceptance, returns tools and the like and archives work tickets. The system has the beneficial effects that operation approval management is strengthened, an intelligent safety protection system of'full-chain control, whole-process trace reserving and full-risk pre-judgment 'is constructed by means of hardware auxiliary means such as field monitoring and personnel positioning, closed-loop management of an operation process is realized, and intrinsic safety transformation from an enterprise to active prevention is promoted.

A rapid peeling and rust removing device for a railway station building steel structure coating is integrally an annular body and comprises a first box body (1), a second box body (2), a holding mechanism (3), a climbing mechanism (4), a peeling mechanism (5) and a rust removing mechanism (6) which are arranged in the first box body (1) and the second box body (2), a pin shaft rotating pair (11) is arranged at the side end of the first box body (1), and a pin shaft embedding groove (21) is formed in the side end of the second box body (2). And the first box body (1) and the second box body (2) are locked and connected through the pin shaft rotating pair (11) and the pin shaft embedding groove (21). According to the rapid peeling and derusting device for the railway station building steel structure coating, the maintenance efficiency of the railway station steel structure coating can be guaranteed, work safety is guaranteed, and economic benefits and social benefits are remarkable.

This invention relates to the field of power work equipment technology, specifically a combined multi-functional live-line working insulated operating rod and its operating method. The operating rod includes a handle, a control rod fixedly connected to the top of the handle, an extension rod movably connected to the top of the control rod, and a tool connecting mechanism fixedly connected to the top of the outer wall of the extension rod. The control rod includes a control rod housing, a rotating rod rotatably connected to the inner wall of the control rod housing, and one end of the rotating rod extending to the outer wall of the control rod housing and fixedly connected to a handle. This invention, by incorporating a control rod, an extension rod, a tool connecting mechanism, and a small monitoring camera, achieves adjustable operating rod length through the cooperation of the control rod and the extension rod, meeting the needs of different working heights. Simultaneously, the design of the tool connecting mechanism makes tool replacement simple and quick, improving work efficiency, while the small monitoring camera enhances work safety.

The utility model provides a wide-range high-altitude operation safety belt attachment device which comprises four sets of positioning devices, positioning steel wire ropes and movable steel wire ropes, the four sets of positioning devices are fixed to the four corner points of the top face of a building respectively, and the two sets of positioning steel wire ropes are straightened and arranged in parallel. Four end points at two ends of the two groups of positioning steel wire ropes are respectively fixed on the four groups of positioning devices, and two ends of the movable steel wire rope are respectively lapped on the two groups of positioning steel wire ropes through movable clamping rings. Personal safety of high-altitude operation personnel is guaranteed, and construction time is shortened. Belongs to the civil engineering field.

The invention provides an extra-thick coal seam hydraulic support mechanism which comprises a base and a top beam, a plurality of first stand columns are rotationally arranged on the base, the top end of each first stand column is connected with the top beam, a shield beam is rotationally arranged at the tail end of the top beam, the shield beam is connected with the base through a connecting rod assembly, and side protection plates are rotationally arranged on the two sides of the top beam correspondingly. A side pushing jack is arranged between the bottom of the top beam and the inner side wall of the side protection plate, a front beam is rotationally arranged at the front end of the top beam, a front beam jack is arranged between the front beam and the bottom of the top beam, and a side protection device is arranged at the front end of the front beam and used for playing a shielding role during side caving. According to the hydraulic support mechanism for the extra-thick coal seam, loads can be transmitted, unbalance loading can be adapted, the structural stress is reduced, the mining efficiency is improved, and the working safety is improved.

The present invention discloses a post-weld heat treatment mold for a reducing tee pipe, which includes a heat treatment unit, the heat treatment unit including an upper shell and a lower shell, and a locking unit; the locking unit includes an upper lock shell and a lower lock shell, the upper lock shell is arranged on the end face of the upper shell, and the lower lock shell is arranged on the end face of the lower shell, the upper lock shell and the lower lock shell are locked with each other to realize the connection between the upper shell and the lower shell. The device is simple and easy to use, greatly improves the efficiency of post-weld heat treatment, and is easy to assemble and disassemble. The automatic locking structure can effectively prevent the occurrence of safety accidents, greatly improving work safety.