2745 results about "Metal sheet" patented technology

The invention relates to the technical field of metal cutting, discloses metal plate laser cutting equipment with a laser head collision early warning function, and aims to solve the problem that the collision risk of an existing cutting head and a convex part of a thin plate is high. Through the displacement component, the laser cutter, the positioning assembly and the central control unit, a metal sheet to be machined is placed on the workbench, then the laser cutter is used for cutting the metal sheet to be machined, in the whole operation process, pictures on the workbench can be shot through the industrial camera, and the working efficiency is improved. The real-time image is displayed on the controller through the real-time image display module, an image model is established through the 3D modeling module, a worker can observe more visually, when an irregular thin plate is encountered, setting is conducted through the height compensation module at the moment, the position of a tool bit of the laser cutter is always at the same height with the thin plate, and the machining precision is improved. Once the set equal height changes, the collision alarm module gives an early warning, and the overall safety performance is improved.

The invention relates to the technical field of hot riveting, and discloses split type hot riveting head modular hot riveting equipment which comprises an upper tool, a lower tool, a heating body arranged at the bottom of the upper tool, a plurality of hot riveting heads arranged at the bottom of the heating body in a linear array mode and a product arranged at the top of the lower tool. The two sets of detachable heating rods are arranged on the two sides of the heating body respectively, the three sets of thermocouples are arranged at the bottom of one side of the heating body, and the heat conduction unit is arranged on the hot riveting head. The heat conduction assembly, the reset assembly and the overturning assembly form a closed-loop action, a heat conduction plate preheats a metal sheet through a heat conduction ring, and infirm connection and deformation caused by temperature difference are avoided. Due to small deflection and overturning separation during hot riveting, heat interference and flash adhesion are avoided; after hot riveting, the material is reset and pushed to be stripped, pull wires are prevented from being pulled up, and a hot riveting head can be surrounded for heat preservation. The whole process does not need extra driving, product quality is guaranteed, takt time is shortened, and automation efficiency is improved.

The invention relates to the technical field of electrochemistry, in particular to a metal power-on weightlessness prediction method and system based on multi-modal fusion, and the method comprises the steps: obtaining weightlessness experiment data of a metal sheet under different current densities and different power-on time and a corresponding surface topography image sequence, and forming a multi-modal data set; wherein the numerical time sequence data uses a first neural network to extract numerical time sequence features representing a local dependency relationship; the image sequence uses a second neural network to extract image time sequence features representing global space-time evolution; and carrying out feature interaction and fusion on the numerical time sequence features and the image time sequence features by utilizing a cross attention fusion mechanism, and outputting a metal sheet weightlessness prediction value at a specific moment in the future. A cross-modal cross attention mechanism is introduced, and a numerical rule and visual form change information are dynamically fused to form complementary and enhanced joint feature representation, so that the precision of a weightlessness prediction value is improved.

The invention belongs to the field of membrane separation, and provides a conductive nanofiltration membrane, a roll type conductive membrane filter element and a nanofiltration separation method.The conductive nanofiltration membrane comprises a substrate layer, a conductive layer and a separation layer and is prepared through a two-step vacuum filtration process and a vacuum filtration assisted in-situ interfacial polymerization method; meanwhile, good conductivity and selective separation capability are realized. In addition, the invention also provides a roll-type conductive membrane filter element based on the conductive nanofiltration membrane, and the roll-type conductive membrane filter element comprises the conductive nanofiltration membrane, a central conduit with a plurality of side holes, a water production diversion separation net, a water inlet diversion separation net, a counter electrode conductive layer, a conductive connector lug and a metal sheet (used for power connection), the roll type conductive membrane filter element can dynamically regulate and enhance the separation performance of charged molecules, ions and the like under the action of an electric field, and has the characteristics of simple structure, easiness in operation and amplification and adjustable and controllable membrane performance.

The invention discloses an electrostatic protection circuit and method, equipment and a storage medium, and relates to the technical field of electrostatic protection, and the circuit comprises a metal sheet connecting plug, an electrostatic discharge circuit, an electrostatic sampling circuit and a microcontroller; the metal sheet connecting plug is electrically connected with the metal sheet, the electrostatic discharge circuit and the electrostatic sampling circuit respectively; the electrostatic sampling circuit comprises a voltage division circuit and a conditioning circuit, and the voltage division circuit is electrically connected with the metal sheet connecting plug and the conditioning circuit; and the microcontroller is in communication connection with the electrostatic sampling circuit and the electrostatic discharge circuit and is used for performing analog-to-digital conversion on the output voltage of the conditioning circuit to obtain electrostatic voltage and controlling the electrostatic discharge circuit to be switched on or switched off. The static voltage of the operator can be acquired in real time through the microcontroller so as to accurately judge whether the static discharge of the current operator is in place or not, so that the condition of hot-line operation of corresponding equipment when the static discharge is insufficient is reduced, and the accuracy and reliability of the static discharge are improved.

The embodiment of the invention provides a sand blasting method and equipment for a non-standard metal sheet and a storage medium, and the method comprises the steps that information of the metal sheet on a placing mechanism is acquired, and the information of the metal sheet represents pose information and surface information of the non-standard metal sheet; the sand blasting surface is divided into M sand blasting areas based on the surface information, the vertical distances from different sand blasting areas to a sand blasting mechanism are different, different sand blasting areas have different sand blasting priorities, and the sand blasting priorities are in positive correlation with the vertical distances; acquiring area shape information of the M sand blasting areas; and according to the pose information, the area shape information and the sand blasting priority, a sand blasting mechanism is sequentially controlled to conduct sand blasting on the M sand blasting areas, and then the target metal sheet is obtained. And sand blasting can be sequentially carried out on different sand blasting areas according to the sand blasting priority, the situation of excessive sand blasting or insufficient sand blasting is reduced, and the sand blasting quality of the non-standard metal sheet is high.

The invention discloses a metal plate continuous stamping device with a polishing function, and particularly relates to the technical field of metal plate machining, the metal plate continuous stamping device comprises a workbench, the rear end of the workbench is fixedly connected with a first fixing block, the upper end of the workbench is provided with a rotating assembly, and the front end of the rotating assembly is provided with a stamping assembly; a moving assembly is arranged at the upper end of the workbench, a grinding assembly is arranged on the left side of a rotating assembly, a lifting assembly is arranged on the left side of the grinding assembly, and a sweeping assembly is arranged on the lower side of the grinding assembly. Through cooperation of all the assemblies, the metal plate is driven to move forwards while being stamped, continuous stamping of the metal plate is achieved, a stamped groove is accurately polished through the polishing assembly, continuous operation of stamping, movable feeding, polishing and surface cleaning of the metal plate is achieved on the whole, and the working efficiency is improved. Manual frequent intervention is not needed, the production efficiency is greatly improved, and the product quality is guaranteed.

The invention discloses a temperature sensor for monitoring the running state of a pump station, and relates to the technical field of pump station unit temperature monitoring, the temperature sensor comprises an outer sleeve, a ceramic tube is arranged in the outer sleeve, and a first platinum wire and a second platinum wire are wound on the circumferential outer wall of the ceramic tube respectively; one end of the first platinum wire lead is welded with a short-circuit wire, and the first platinum wire lead is in short circuit with the second platinum wire lead through the short-circuit wire; one end of the first platinum wire lead and one end of the second platinum wire lead are welded with metal sheets, one side of each metal sheet is welded with a lead, and the bottom of the outer sleeve is fixedly connected with a lead sheath used for protecting the lead. The outer sleeve is filled with magnesium oxide powder used for conducting insulation and heat conduction on electromagnetic signals. According to the invention, real-time and accurate monitoring of the temperature of the air cooler is realized, reliable guarantee is provided for safe operation of a pump station unit, and unit faults or unnecessary shutdown caused by abnormal temperature are avoided.

The invention belongs to the technical field of engine cylinder block machining equipment, and particularly relates to a metal sheet machining drilling device which comprises a rack, a clamping module, a main shaft module, an atomization cooling module, a negative pressure chip removal module, a recycling and purifying module, a heat dissipation module and a control system. The main shaft module comprises a main shaft body, a tool changing module and an electric switching mechanism. The recycling and purifying module comprises a condensation recycling channel, a primary filtering assembly, a precise filtering assembly and a liquid return pipeline. According to the drilling device for metal sheet machining, the atomization cooling module greatly reduces the using amount of cutting fluid, and the purchasing cost of the cutting fluid is greatly reduced; and meanwhile, the recycling and purifying module realizes the circulating reuse of the cutting fluid, so that the consumption of the cutting fluid is further reduced, the discharge amount of waste liquid is reduced, and the waste liquid treatment cost is saved.

The utility model discloses a noise reduction structure, a vibration assembly and a vehicle, and the noise reduction structure is used for being attached to the surface of a housing of a component with vibration excitation and comprises multiple layers of metal sheets; the number of the damping layers is multiple, and the multiple damping layers and the multiple metal sheets are arranged in a stacked mode. According to the noise reduction structure, the plurality of metal sheets and the plurality of damping layers are arranged and attached to the surface of the component with vibration excitation, so that the metal sheets and the damping layers are combined, the noise reduction structure has sound absorption, sound insulation and vibration reduction performance, and the effect of reducing radiation noise of the shell can be achieved; and the original part structure and material with a vibration source do not need to be changed.

The invention belongs to the field of mechanical property testing of metal materials, and relates to a method and a system for detecting tensile strain mark limit, the system applies tensile load to a metal plate sample through a test module, an illumination projection module projects a structured light pattern to the surface of the sample, and an image acquisition module continuously acquires surface images of the sample; and the data processing module is used for carrying out wrapped phase calculation, differential phase calculation, distortion parameter extraction and tensile strain mark initiation judgment on the image sequence, so that accurate positioning at the moment of tensile strain mark initiation and objective and quantitative measurement of the critical strain limit are realized. The method can effectively improve the detection sensitivity and accuracy of the material surface instability characteristics, realizes high-precision judgment at the moment of tensile strain mark initiation, and provides a reliable basis for material performance evaluation and quality control.

The invention provides a thermocouple assembly for measuring the temperature of a pipeline and a measuring method, and belongs to the technical field of industrial temperature measurement, the thermocouple assembly comprises a pipe clamp and a thermocouple measuring instrument, the pipe clamp comprises a first clamping arm and a second clamping arm, and is configured to clamp the outer wall of the pipeline; a first metal sheet and a second metal sheet which are made of different materials are arranged on the clamping surface of the first clamping arm at intervals; a third metal sheet and a fourth metal sheet which are made of different materials are arranged on the clamping surface of the second clamping arm at intervals; when the pipe clamp is clamped on the surface of a pipeline, the measuring end of each metal sheet is in contact with the pipeline to form a first thermocouple measuring junction, a second thermocouple measuring junction and a third thermocouple measuring junction; the thermocouple measuring instrument is configured to collect thermocouple signals of the thermocouple measuring nodes and indicate temperature values of corresponding positions of the pipeline according to the thermocouple signals. According to the thermocouple assembly, the temperatures of multiple measuring points can be measured synchronously, and the convenience and accuracy of pipeline temperature measurement are greatly improved.

The utility model discloses an anti-immersion American transformer station comprising a box station, the two ends of the front side of the box station are rotatably connected with station doors, the outer side of the box station is fixedly provided with a waterproof plate, the upper part of one side of the box station is fixedly provided with a motor protection cover, the front side of the box station is fixedly provided with a rubber frame, and the surface of the rubber frame is provided with a clamping groove. Magnet pieces are evenly arranged on the surface of a clamping groove in the surface of the rubber frame in an adhesive mode, a rubber clamping ring is fixed to the surface of the station door, and a metal piece is arranged in the rubber clamping ring. According to the anti-immersion American transformer substation, the anti-seepage effect of the American transformer substation can be improved through clamping and sealing of the L-shaped waterproof plates at the heat dissipation holes in the surface of the box station, the rubber frame in the box station and the rubber clamping ring on the surface of the station door.

A method for testing the heat insulation performance of a thermal barrier coating comprises the following steps: preparing a set of plasma flame spraying equipment, preparing a metal sheet, and spraying the thermal barrier coating on the surface of the metal sheet to prepare a coating sample; preparing a high-temperature electric furnace and an aluminum oxide fiberboard with the same size as a furnace door brick, embedding the metal sheet into the aluminum oxide fiberboard, and exposing the coating surface and the back surface of the metal sheet; opening a furnace door of the high-temperature electric furnace, sealing the furnace door by using the cut aluminum oxide fiber plate as a furnace door brick, and embedding the metal sheet into the aluminum oxide fiber plate in the direction that the coating surface faces the interior of the furnace; setting a heating program of the electric furnace to heat the electric furnace to a temperature required to be tested; testing the temperature of the back surface, exposed in the air, of the metal sheet by using a laser thermometer; the steps are repeated for multiple times, the difference value between the furnace temperature and the back temperature is recorded, and the average value is calculated and can serve as the judgment basis of the heat insulation performance of the thermal barrier coating. The method is simple and convenient to operate, accurate in test condition and high in practical application value.

A magazine spring includes intermediate coils each having a first end portion, a second end portion, and a waist portion between the first end portion and the second end portion. The waist portion has a width that is less than a width of at least one of the first end portion and the second end portion. A magazine tube is also disclosed. In one example, the magazine tube is made of sheet metal and includes grip indentations formed along forward corners of the magazine tube. The magazine tube may also define locating ribs for blank cartridges. A magazine spring having the narrow waist portion can be included in the magazine assembly so that the spring clears the locating ribs.

A method for producing layered sheet structures from titanium or titanium alloy metal for use in or as electrodes of PEM-type electrolyzers or fuel cells. The method includes providing a first sheet-like green part with voids or open spaces, where first sheet-like green part is a green part of a first metal sheet layer. The method alternatively includes providing a first metal sheet layer comprising a metallic frame structure with voids or open spaces. The method further includes providing a second sheet-like green part, where second sheet-like green part is a green part of a second metal sheet layer, which is porous. The method alternatively includes providing a second metal sheet layer, which is porous. The method further includes forming a stack with a combination of the first and second sheet-like green part and the first and second metal sheet. The method further includes bonding the metal sheet layers.

Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head includes a face portion defining an opening. A face plate is set in the opening. The face plate includes a bezel attached to the opening and a strike assembly set in the bezel. The strike assembly includes at least one metal sheet and at least one composite sheet coupled to the at least one metal sheet. The at least one composite sheet includes a plurality of fibers oriented orthogonally with respect to a substrate of the at least one composite sheet. Other examples and embodiments may be described and claimed.

The invention relates to an evaluation method, in particular to a method for evaluating the flanging self-piercing riveting quality of a composite board and a metal board. According to the method for evaluating the flanging self-piercing riveting quality of the composite board and the metal board, the failure load can be directly reflected by detecting the values of delta y, W and theta, and the pulling-out force (namely the connecting force) between the boards can be reflected through the failure load, so that the connecting quality between the boards in the same batch can be directly reflected, and the evaluation of the connecting quality between the boards is more accurate and visual. And the connection quality of the plate can be ensured to be qualified through accurate evaluation, and the use performance of the plate is ensured. And meanwhile, the riveting process can be optimized through evaluation, the riveting quality is improved, the riveting qualification rate is effectively increased, and the rework rate is reduced. The problems that an existing flanging riveting quality control method is not visual and cannot directly reflect the connection quality are solved.

A turbocharger heat management structure relates to the technical field of internal combustion engine supercharging devices and comprises a radial flow turbine, a centrifugal compressor and a bearing system which are connected, and the heat management structure is arranged between the radial flow turbine and the bearing system. The heat management structure comprises a first heat insulation cover, a second heat insulation cover and a third heat insulation cover which are in a revolving body metal sheet shape and arranged at the turbine back disc, a first heat insulation cavity is formed between the first heat insulation cover and the second heat insulation cover, a second heat insulation cavity is formed between the second heat insulation cover and the third heat insulation cover, and a third heat insulation cavity is formed between the third heat insulation cover and the annular cooling groove. The first heat insulation cavity communicates with a gap in the turbine back disc, and the third heat insulation cavity is connected with a cold air hole. The third heat insulation cavity, the second heat insulation cavity and the first heat insulation cavity are sequentially communicated through an air guide structure. On the premise that the weight and the size are not greatly increased, the heat insulation efficiency is greatly improved, and the purpose of actively and efficiently cooling a key area is achieved.

A lid 10 for a container comprising a first layer 12 comprising a metal sheet, a printed circuit board (PCB) 20 second layer 14, the PCB having at least one light emitting diode (LED), wherein the fir

The application belongs to the field of carbon material preparation, and discloses a preparation method of self-supporting carbon nanotube and graphene hybrid material. The preparation method is as follows: two carbon sources with different carbon contents are added into a mixed solution of ethanol and water to form a suspension; the suspension is sprayed on the surface of a metal sheet, and after drying, the metal sheet is placed in a high-temperature furnace for high-temperature heating in a protective atmosphere; after the high-temperature furnace is cooled, the carbon material is taken off from the metal sheet, and then the carbon material is soaked in an acid solution, and then washed with water and dried to obtain the self-supporting carbon nanotube and graphene hybrid material. The method has the characteristics of simple operation, low cost, good product structure interconnection, and easy controllable macro preparation. The self-supporting carbon nanotube and graphene hybrid material can be used as a positive electrode carrier material of a lithium-sulfur battery.

This utility model discloses a spiral duct seam structure, relating to the field of ventilation duct technology. The structure includes a duct plate formed by rolling metal strip, with its seam edges connected by an interlocking structure. The interlocking structure consists of a left interlocking edge partially covering a right interlocking edge. The left interlocking edge sequentially includes a first windward section, a first double-layer pressing section, a second windward section, a first horizontal section, and a first vertical section; the right interlocking edge sequentially includes a second double-layer pressing section, a second vertical section, and a second horizontal section. The outer side of the first double-layer pressing section is pressed against the second horizontal section, the second vertical section, and the second double-layer pressing section on its upper, right, and lower sides, respectively. A reserved gap is provided between the two metal sheets of the first double-layer pressing section. By guiding and blocking dust from entering the reserved gap through the double windward sections, dust accumulation causes the gap to expand and compress the right interlocking edge, thereby adaptively enhancing the interlocking tightness and collecting dust, effectively preventing seam detachment and gas leakage, and improving ventilation quality and system safety.

The utility model discloses a bi-directional easy-to-tear protective film for a metal plate, which comprises a protective film main body and release paper, the protective film main body comprises a base material layer and an adhesive layer, the adhesive layer is used for attaching the metal plate, a bi-directional easy-to-tear structure is arranged on the base material layer, and the release paper is arranged on the base material layer. The bidirectional easy-to-tear structure comprises four punching lines which are respectively arranged at four corners of the base material layer, the release paper covers the adhesive layer when the protective film main body is not used, and the release paper is removed from the adhesive layer when the protective film main body is used. According to the utility model, the bidirectional easy-to-tear structure is arranged on the protective film, so that a user can easily tear the protective film from two directions, the difficulty of tearing by hands is reduced, and the operation efficiency is improved.

The invention relates to a configuration system comprising a main rail having a side strip for connecting the main rail and a furniture main body, a drawer rail having a further side strip which is oriented parallel to the side strip in the state of use of the configuration system, and at least one side frame in the form of a container side wall, the side frame being movably supported relative to the main rail via the drawer rail, the side frame being arranged at least partially directly between the side strip and the further side strip in the state of being fixed to the drawer rail, a metal sheet profile of the side frame comprising a recess-like profile on a side of the metal sheet profile which is configured for accommodating a container bottom, and / or a side of the curved metal sheet profile of the side frame which faces the drawer rail in the state of use of the configuration system is arranged at least partially directly between the side strip and the further side strip in the state of being fixed to the drawer rail.

The utility model relates to the technical field of lamps, in particular to a wiring-free wall lamp capable of being flexibly assembled, which comprises a lamp shell, a limiting frame is welded in an inner cavity of the lamp shell, metal plates are welded on the left side and the right side of the front side of the bottom of the limiting frame, and metal probes are slidably connected to the inner sides of the metal plates in a penetrating manner. A pressing type buckle is inserted into the middle of the front side of the bottom of the limiting frame, a storage battery shell is inserted into an inner cavity of the limiting frame in a sliding mode, a storage battery body is placed in an inner cavity of the storage battery shell, a charging and discharging plate is installed on the front side of the inner cavity of the storage battery shell, and an installation inserting rod is welded to the front side of the storage battery shell; a main control board is installed on the front side of an inner cavity of the lamp shell through bolts. And the metal probes penetrate through the storage battery shell and are in contact with the output positive and negative electrodes on the surface of the charging and discharging plate, so that the lamp is powered by the storage battery body without an external power line, the wiring-free function is achieved, the mounting position can be determined at will, and use is flexible and diverse.

The utility model belongs to the technical field of intelligent electric meter data acquisition, and provides an intelligent electric meter data acquisition device support, which comprises a main body mechanism, the main body mechanism comprises a storage rack, an acquisition main body arranged in the storage rack, mounting sheets arranged on two sides of the top of the storage rack, and fixing bolts arranged on one sides of the mounting sheets, and the back plate is arranged on the back of the storage rack. When the collecting device is used, after the collecting main body is clamped in the storage rack, the storage rack rotates in the rotating seat through the moving rod, so that a back plate on one side of the storage rack is attached to one side of the mounting plate, and a metal sheet on the back plate and a magnetic sheet on one side of the mounting plate are magnetically adsorbed and fixed; the fixing bolts penetrate through the mounting pieces to be screwed and fixed to threaded grooves in the limiting rods, and when the storage rack is mounted to the side wall, when data acquisition is needed, after the fixing bolts are unscrewed, the storage rack performs data acquisition on the aspect that the rotating seats rotate by a certain angle through the moving rods.

The application relates to a metal sheet material performance test technology and discloses a method for predicting Bauschinger effect of a metal sheet by using a BP neural network, which comprises the following steps: 1) constructing a finite element simulation model of a pre-tension three-point bending continuous deformation process of the metal sheet, and designing a pre-tension three-point bending test to verify the reliability of the finite element model; 2) obtaining a sample set containing a load displacement curve of an imaginary sheet material and a Bauschinger effect mapping relationship through finite element model simulation and theoretical calculation; 3) constructing a Bauschinger effect prediction model based on the BP neural network, and training the Bauschinger effect prediction model by using the sample set; and 4) obtaining a load displacement curve of a to-be-tested metal sheet by using a pre-tension three-point bending test, inputting the load displacement curve into the trained BP network Bauschinger effect prediction model, and predicting the Bauschinger effect of the to-be-tested metal sheet. Compared with other determination methods of the Bauschinger effect of the metal sheet, the application has the advantages of lower cost, simpler operation, fewer influencing factors and higher parameter accuracy.

A duralumin credit card, according to an embodiment of the present invention, may comprise: a metal sheet made of metal; a first duralumin flake ink layer printed on the metal sheet by means of silkscreen printing and including duralumin flake powder; and a second duralumin flake ink layer printed on the bottom surface of the metal sheet by means of indoor screen printing and including duralumin flake powder.

The utility model provides a simulated left wheel soft bullet toy gun, and relates to the technical field of toy guns. The device comprises a gun-shaped shell, a trigger slidably connected to the gun-shaped shell and a bullet wheel rotatably connected to the gun-shaped shell, soft bullets in the bullet wheel are pushed out through air pressure, and a handle is slidably connected to the top of the gun-shaped shell; the metal sheet is located on the inner side of the gun-shaped shell and installed at the bottom of the handle. The simulation bullet changing plate is slidably connected in the gun-shaped shell, the metal sheet is obliquely arranged through the simulation bullet changing plate, the handle synchronously drives the metal sheet to move towards the loading direction so as to linearly push the piston and the simulation bullet changing plate, the bullet wheel is pushed to rotate through the simulation bullet changing plate, and the metal sheet moves towards the opposite loading direction so as to be separated from the piston; the elastic clamping block is installed in the gun-shaped shell and connected with the loaded piston in a clamped mode, and the piston and the simulation bullet changing plate are released by manually pushing the trigger towards the elastic clamping block. Compression of the trigger on fingers can be reduced, the piston can be released more sufficiently, and interestingness is improved.

The utility model relates to proportional valve technical field provides a kind of modular proportional valve of split type, including valve body, the valve body upper end is fixedly connected with intermediate valve body, the intermediate valve body upper end is fixedly connected with connecting seat, the connecting seat outside is fixedly connected with clamping block, the connecting seat upper end is provided with control part, the control part outside is provided with clamping assembly;The clamping assembly includes the metal sheet fixedly installed in the control part both sides, the metal sheet lower end is equipped with clamping groove, the utility model has the beneficial effects that: through the corresponding cooperation of clamping block and clamping groove, and the guiding slope surface of metal sheet inclined section, it can be installed by inserting, pulling transmission rod, it can be rotated by transmission frame to make the elastic deformation of extruding strip synchronous extrusion metal sheet, make clamping groove and clamping block separate, and operator can realize unlocking by single hand pulling transmission rod, realize toolless quick disassembly, simple structure, convenient to use.