46results about How to "No displacement" patented technology

The utility model discloses a special-shaped nut welding positioning device which comprises a spot welding machine, a supporting and driving supporting frame is fixed on the front surface of the spot welding machine, a cavity is formed in the supporting and driving supporting frame, an adjusting piece is arranged in the cavity in a rotating mode, a supporting piece is fixed at the top end of the adjusting piece, and a driving piece is arranged in the top end of the supporting piece in a sliding mode. A rotating clamping plate is rotatably arranged at the top end of the driving part, a driven stand column is fixed to the bottom end of the rotating clamping plate, a driven roller is rotatably arranged at the bottom end of the driven stand column, a cavity is formed in the rotating clamping plate, a sliding clamping plate is slidably arranged at the top end in the cavity, and a driving screw is rotatably arranged at the bottom end in the cavity. The driving wedge block and the driven wedge block in the driving piece are matched with each other, the driven roller is pushed through the action of the inclined face, then the rotating clamping plate is driven to rotate, the angle of the special-shaped nut is flexibly adjusted, the angle adjusting process is stable and accurate, and the welding positioning accuracy is improved.

The application discloses a forming die of a rubber guide sleeve with a metal framework and a preparation method thereof. The forming die comprises an upper die, a middle die and a lower die. The upper die comprises an upper disc and a cylinder. The cylinder is provided with a positioning hole. The lower surface of the upper disc is provided with a chamfered upper cavity groove. The lower die comprises a lower disc, a circular table and a positioning boss. The upper surface of the circular table is provided with a chamfered lower cavity groove. The middle die is provided with a cavity hole in the center. When the die is closed, the positioning boss of the lower die is inserted into the positioning hole. The positioning boss is provided with a support ring which is provided with a recess forming pin. The outer wall of the cylinder is provided with a metal framework. The chamfered upper cavity groove, the outer wall of the cylinder, the outer side wall of the support ring, the chamfered lower cavity groove and the inner wall of the cavity hole form a forming cavity. After vulcanization of the product is completed, the forming pin is accurately positioned, the square recess around the inner diameter of the metal framework guide sleeve meets the design requirements, the die opening and the product demolding are smooth, the operation is simple, safe and reliable, and the manufacturing cost is low.

This utility model relates to the field of river management technology and discloses a movable micro ecological floating island, including a floating bed. Multiple planting tubes are movably connected vertically through the interior of the floating bed. A retaining ring is fixedly fitted onto the outside of each planting tube above the floating bed. Clamping mechanisms are provided on both the front and rear sides of the planting tubes on the upper surface of the floating bed. Positioning mechanisms are provided at the four corners of the upper surface of the floating bed. This utility model utilizes a pawl and ratchet locking design. After the positioning anchor sinks to the bottom of the water under gravity, releasing the pawl enables one-way self-locking of the rocker arm, effectively preventing the positioning rope from loosening and ensuring that the floating bed does not shift under water flow or wind force, ensuring stable and reliable positioning. Simultaneously, when moving the floating island, simply turning the rocker arm clockwise quickly retracts the positioning rope and anchor, making operation simple and quick, significantly improving the efficiency of floating island position adjustment and relocation.

The utility model discloses a high load automobile part frame for assembly line production relates to the technical field of automobile production, including base, the upper end center position of base is installed with center support column, the upper end symmetry of base is installed with two side plates, and the opposite end of two side plates is provided with the sliding slot, the inside installation of sliding slot has the hydraulic pressure rod, and the upper end common mounting of two hydraulic pressure rods has the crossbeam, the both ends of crossbeam all are provided with the lateral groove, and the inside rotation of lateral groove is connected with double screw thread rod, the surface symmetry of double screw thread rod is installed with the moving plate, and the lower end common mounting of same side two moving plates has the clamping plate, and the opposite end of two clamping plates all is installed with a plurality of equidistance arrangement's clamping block. The utility model discloses through setting a series of structures, through the collaborative structure of " center support column + double hydraulic pressure rod + double screw thread rod", realizes the stable support under the big load.

This utility model relates to the field of forklift technology and discloses an assembly and positioning fixture for a forklift tail carriage assembly. It includes a base, on which a slit positioning assembly is fixed. The slit positioning assembly includes a positioning bracket and horizontally arranged, mutually perpendicular transverse slit positioning blocks and longitudinal slit positioning blocks. The end of the transverse slit positioning block furthest from the positioning bracket is an abutment end, used to abut against the side plate of the tail carriage assembly. The end of the longitudinal slit positioning block furthest from the positioning bracket is also an abutment end, abutting against the front or rear plate of the tail carriage assembly. A steering axle positioning assembly is fixed to one side of the base. The steering axle positioning assembly includes a steering axle positioning bracket and a positioning pin. The axis of the positioning pin is collinear with the axis of the steering axle mounting hole on the tail carriage assembly. This utility model, through the coordinated operation of the slit positioning assembly and the steering axle positioning assembly, quickly and accurately positions and fixes the various plates of the tail carriage assembly, ensuring the coaxiality of the slit dimensions and the steering axle mounting holes.

The invention belongs to the technical field of coal mine drilling, and particularly relates to drilling equipment and method for underground coal mine geological prospecting. The drilling equipment comprises a driving assembly, a console body is arranged on the driving assembly, a plurality of fixing assemblies are arranged below the driving assembly in an array mode, and a punching assembly is arranged on the driving assembly; the driving assembly comprises two bases, a plurality of fixing columns are fixedly connected to the upper end of the lower base in an array mode, and first electric telescopic rods are fixedly connected to the lower ends of the fixing columns. The pressure control assembly and the console are arranged, hydraulic oil flow division and pressure relief are achieved by adjusting the position of the sealing cover, sparks caused by too large impact force during hard rock stratum operation are avoided, and the underground anti-explosion requirement is met; the console monitors the moving speed of the drilling head in real time and intelligently adjusts the rotating speed of the motor and the telescopic mode of the hydraulic oil telescopic rod; a drilling head is protected in a low-speed and reciprocating impact mode in a hard rock stratum, efficient drilling is kept in a soft rock stratum, and different geological conditions are adapted.

The invention relates to a welding device for sheet metal parts of a dining car carriage and a working method thereof.The welding device comprises a welding robot and a material fixing mechanism, the material fixing mechanism comprises an electric rotary table, a supporting rotary column is fixedly installed at the rotating end of the electric rotary table, and a bottom plate electromagnetic base is installed on the supporting rotary column; a plurality of first adsorption blocks are detachably mounted on the bottom plate electromagnetic seat, a rotating ring is rotatably mounted on the supporting rotating column, a supporting arm is mounted on the outer side of the rotating ring, a telescopic arm is slidably mounted in the supporting arm, and a cross beam is rotatably mounted on the top side of the outer end of the telescopic arm; according to the invention, ultra-high flexibility and high-precision customization-free positioning are realized, a traditional clamp mode is subverted, and a universal positioning platform is constructed through combination of a modularized multi-degree-of-freedom kinematic chain and a self-adaptive adsorption system.

The utility model belongs to the field of shield machine, concretely relates to a kind of multi-blade staggered wear-resistant device of high-efficiency shield machine cutter, solve the current shield cutter in shield tunneling process, do not have the characteristics of multi-blade staggered, when facing uneven special geology, easy to appear cutter wear seriously, then cannot reach the effect of wear resistance, increase the problem of cutter cost when shield tunneling, including cutterhead, the front of the cutterhead is provided with a plurality of installation grooves, the inside of each installation groove is provided with mounting block, the side surface of each mounting block is provided with two first hob, the side surface of each mounting block away from each other is provided with second hob, the front of each mounting block is provided with third hob. By two first hobs, third hobs and the second hobs of side surface, can be staggered distribution, can disperse the cutting pressure that single hob bears, will make wear more uniform, improve the wear resistance of device.

The application relates to the technical field of fabric support, in particular to a wrinkle-preventing silk fabric suspension type shaping support structure, which comprises a suspension support, a top plate, a cloth winding shaft, an auxiliary beating assembly and a wrinkle-removing positioning assembly, the top plate is fixedly connected at the top of the suspension support, and the wrinkle-removing positioning assembly is installed at the side of the suspension support close to the auxiliary beating assembly. The wrinkle-preventing silk fabric suspension type shaping support structure of the application simulates the natural unfolding effect of manual beating through low-frequency vibration of the auxiliary beating assembly, and avoids the damage of high temperature or chemical treatment to silk fibers. The cloth winding shaft symmetrically winds large-size silk fabrics, so that the fabrics are uniformly stressed in a suspension state, and folding marks are completely eliminated, and meanwhile, the transverse occupied space is saved; the fabric is gently pressed against the fabric edge by rotating the handle to drive the threaded rod, so that the vertical direction of the fabric is maintained, and oblique distortion wrinkles are avoided; the limiting block ensures that the fabric does not displace during beating, and the wrinkle-removing efficiency is improved.

The utility model discloses a mobile type spraying epidemic prevention device for animal husbandry veterinarian, including mobile car, be provided with spraying assembly on the mobile car, spraying assembly includes cylinder and pump body, the detachable installation of cylinder is on the mobile car, the pump body sets up one end at the cylinder, is equipped with the connecting hose on the pump body and is installed, be equipped with the spray head on the connecting hose and be connected, be equipped with the protection frame on the mobile car and install, be provided with locking assembly on the mobile car and cylinder, locking assembly includes lock board and lock rod, lock rod installs on the mobile car, lock board sets up on the cylinder, lock board and lock rod slidingly connected, lock rod passes through lock board and is detachably installed and is equipped with lock sleeve, to solve the technical problem that the device in the background art mentioned in design often lacks enough flexibility.

This invention discloses a welding device for a one-way explosion-proof valve body, comprising an adjustment component, a welding component, and a welding surface finishing component. The adjustment component is used to adjust the position of the welding surface finishing, and the welding component is used for adjusting and welding the valve body. The welding component includes a fixed plate fixedly mounted on the top of a fixed base and a first sliding rod fixedly mounted on the fixed plate. The welding surface finishing component is used to pre-treat the welding surface of the valve body at the position where it is welded to the flange. The welding surface finishing component includes a mounting plate, a transverse partition fixedly mounted on one side of the mounting plate, and side plates fixedly mounted on both sides of the transverse partition. This invention uses a rotating annular finishing strip to clean the welding surface of the valve body and the flange. The annular finishing strip fits tightly with the welding surface of the valve body, effectively removing oxide layers, oil stains, and impurities from the welding surface, improving the weld bonding strength, and avoiding affecting the subsequent assembly and sealing performance of the valve body.

This utility model belongs to the field of extrusion press technology, and particularly relates to a novel aluminum profile extrusion press, including a housing, a fixed frame, a hydraulic cylinder, an extrusion plate, a first motor, a disc, and four extrusion dies. It also includes: four limiting grooves, each located within the disc, with a fixing block inserted into each groove; the four extrusion dies are respectively fixedly mounted on the tops of the four fixing blocks; the first motor is fixedly mounted within the housing; the disc is fixedly mounted on the output shaft of the first motor; the fixed frame is fixedly mounted on the top of the housing; the hydraulic cylinder is fixedly mounted on the top of the fixed frame; and the extrusion plate is fixedly mounted on the telescopic end of the hydraulic cylinder; a power chamber is located within the housing. This allows for the fixing of the disc's position, ensuring that the extrusion dies do not shift during extrusion, guaranteeing stable extrusion operation, facilitating die replacement, and providing convenient and simple operation without the need for tools.

The utility model provides a zero-sequence current transformer installation structure and a low-voltage cabinet, which belong to the technical field of low-voltage cabinets and comprise an installation beam and a transformer installation module. The mounting beam is vertically mounted on the inner wall of a side plate of the low-voltage cabinet; the mounting beam is located behind the vertical row cover plate, and a mounting space is formed between the mounting beam and the vertical row cover plate; the mutual inductor mounting module comprises a sliding module and a limiting module; the sliding module has the freedom degree of moving in the length direction of the mounting beam. The limiting module is arranged on the sliding module; and the plurality of zero sequence current transformers are respectively arranged on the plurality of limiting modules. According to the zero-sequence current transformer installation structure provided by the utility model, the installation beam is arranged on the side plate of the low-voltage cabinet, so that the zero-sequence current transformer is separated from the vertical row cover plate, the heat dissipation of the vertical row cover plate is not influenced, and a primary cable and a secondary cable can be effectively separated by virtue of the installation space between the installation beam and the vertical row cover plate; the construction is convenient.

This utility model discloses a special ceramic metallization printing fixture, belonging to the field of special ceramic processing technology. The fixture includes a positioning frame and a mounting plate detachably installed within the positioning frame. It also includes: mounting holes arranged in a rectangular array on the mounting plate for placing ceramic substrates; each mounting hole has a clamping part for limiting the ceramic substrate's position. When the ceramic substrate is located within the mounting hole, its surface is flush with the mounting hole. Through the arrangement of the mounting plate and mounting holes, when the ceramic substrate is placed into the mounting hole, it directly contacts the anti-slip texture on the anti-slip pad, and the elasticity of the elastic sheet compresses the sidewall of the ceramic substrate, thereby limiting its position. This fixture can adapt to ceramic substrates of different sizes of the same type, effectively improving the adaptability of the mounting plate to the ceramic substrate and further improving production efficiency.

This invention provides a pipe hot-press welding fixture, belonging to the field of pipe welding technology. It includes a base, with a fixed mold and a fixed box fixedly connected to both ends of the top of the base. Horizontal shafts are symmetrically fixed between the fixed mold and the fixed box. A first moving mold and two second moving molds are slidably connected to the two horizontal shafts. Each of the fixed mold, the first moving mold, and the second moving molds is equipped with a locking ring and a two-drive assembly, which drives the two second moving molds to move. This invention uses an angle adjustment component to adapt the support angle according to the actual tilt angle of the pipe, replacing the rigid fixed support structure of existing hot-melt butt welding machines. This effectively avoids gravity shift or deformation caused by the lack of adaptive support when the pipe is tilted due to its high material flexibility, ensuring that the pipe joints to be welded are always accurately aligned. This prevents uneven stress on the pipe and uneven heating of the molten area during welding, significantly improving the sealing performance of the pipe.

This application relates to the technical field of permanent magnet processing, and in particular to a fixed fixture for processing neodymium iron boron (NdFeB) magnets, including a base, a clamping assembly, and a driving assembly. An electric telescopic rod is fixedly connected to the surface of the base, and a horizontal plate is fixedly connected to the output end of the electric telescopic rod. Two fixed plates are symmetrically fixedly connected to the surface of the horizontal plate. A rotating shaft is rotatably connected to one side of each fixed plate via bearings, and a U-shaped plate is fixedly connected to one side of each rotating shaft. This solution uses the electric telescopic rod on the base surface to drive the horizontal plate to rise and fall, which can be flexibly adjusted according to the height requirements of the NdFeB material, achieving rapid positioning. A servo motor drives a half-gear and a driven gear to mesh, driving the rotating shaft and the U-shaped plate to rotate, automatically realizing the flipping operation of the NdFeB material, reducing manual operation, and improving processing efficiency and accuracy.

This invention relates to the field of air conditioner technology, specifically to an installation structure, an electrical control box, and an air conditioner. The problem this invention solves is the inability to move the electrical control box within an air conditioner. To address this problem, embodiments of this invention provide an installation structure connected to the electrical control box. The installation structure includes: a connecting part connected to the electrical control box; and a fixing device connected to the connecting part; wherein at least a portion of the fixing device is movable and drives the electrical control box to move.

This utility model discloses a clamping device for a tension sensor, including a base. Support plates are fixed to the upper end of the base at its left and right sides. Multiple square holes are distributed at the front end of the support plates. A movable block is sleeved on the outer side of the support plates. A handle is provided at the left end of the movable block. After clamping the sensor body, the device can move the movable block to adjust the height of the sensor body. During adjustment, pulling the handle outward causes the circular plate to compress the stainless steel spring, and simultaneously moves it outward, disengaging the square insertion post from the square insertion hole. The movable block can then move up and down along the support plate. After adjusting to a suitable height, the handle is released, allowing the square insertion post to insert into the internal position of the square hole, thus completing the height adjustment of the movable block. This method can accommodate objects of different sizes.

This utility model relates to the field of packaging equipment technology and discloses a control box for packaging equipment, including a box body. Handles are symmetrically fixedly connected to both outer sides of the box body. A dust collector is installed through the left side of the top of the box body, and a connecting seat is fixedly connected to the right side of the top of the box body. A flexible opening and closing fixing component is provided at the front end of the box body. The fixing component includes a movable door. A slot is opened at the front end of the box body, and the left side of the movable door is movably hinged to the left side of the inner wall of the slot in the box body. This control box for packaging equipment optimizes the fixing method of the movable door by setting up a movable rod, movable door, movable frame, external seat, and pull block, ensuring that the movable door will not shift during protection and strengthening the firmness between the movable door and the box body. It solves the problem that the control box is inconvenient to open and close due to structural design issues, affecting operation and use, and that repeated opening and closing causes certain damage to the structure.

The utility model discloses a concrete floating platform for floating photovoltaic power station relates to offshore wind power technical field, including construction platform, construction platform is spliced by a plurality of board blocks, and construction platform can float on the water surface, and construction platform is equipped with floater no.

This invention relates to the field of magnesium alloy production technology, and in particular to a polishing apparatus for magnesium alloy production. It includes a polishing cabinet, a mounting frame, a aligning assembly, a heat-absorbing assembly, and a clamping assembly. The mounting frame is fixedly disposed inside the polishing cabinet. A sliding frame is horizontally mounted on the mounting frame. The aligning assembly is slidably mounted on the sliding frame, and a hydraulic cylinder is disposed between the aligning assembly and the sliding frame. The heat-absorbing assembly is fixedly disposed at the rear end of the aligning assembly and includes a mounting shell. A partition plate is fixedly disposed inside the mounting shell, and the lower end of the partition plate is a water-containing cavity. Several heat-conducting rods are vertically slidably disposed inside the mounting shell, with one end of each heat-conducting rod penetrating the top of the mounting shell and contacting the magnesium alloy. This invention achieves cooling of the magnesium alloy sheet during polishing by transferring heat generated by the magnesium alloy sheet through multiple sets of heat-conducting rods. The water-containing cavity contains water, which cools and absorbs heat from the lower ends of the heat-conducting rods, thereby reducing heat accumulation and lowering the risk of thermal combustion of the magnesium alloy during polishing.

The utility model discloses a kind of anti-shaking paving stones, belong to paving stone technical field, including paving stone body, the lower end surface of the paving stone body is fixed with fixed rod, and the side edge of the paving stone body is equipped with first fixed slot, and the upper end surface of the paving stone body is evenly equipped with antiskid groove;Still include: connecting mechanism, set in the inside of the first fixed slot, the side edge of the other of the paving stone body is equipped with second fixed slot, and the inside of second fixed slot is equipped with limiting mechanism, the limiting mechanism and connecting mechanism are mutually cooperated and realize the splicing of two paving stone bodies.The anti-shaking paving stone, even if concrete position appears the phenomenon of cracking and breaking after paving stone is trodden for a long time, adjacent paving stone between can also avoid shaking, so stability when using can be guaranteed.

The utility model discloses a stainless steel lining paper fixing device convenient to quick positioning, including base, the upper surface of base is in -built and is set up with the positioning slot, the surface on the positioning slot is etched with coordinate grid, and the both ends of base all are seted up with two sets of guide slot, and two sets of guide slot all are slidably installed with the pressure solid establishment in the inside. The utility model discloses through the pressure solid establishment, makes it through the extension of extension board can according to the quick adjustment pressure solid rod position of lining paper size, greatly promotes the adaptability to different size lining paper, need not to replace special fixed component, has reduced equipment use cost and operation complexity.

This utility model belongs to the field of vibration damper testing technology, specifically a rapid welding point testing device based on vibration damper lifting lug positioning. It includes a testing platform and a vibration damper body. The outer wall of the vibration damper body is connected to a connector, a valve housing inclinedly disposed on the vibration damper body, and a lifting lug fixed to the first end of the vibration damper body. It also includes a clamping mechanism, comprising a positioning seat fixed to the first end of the platform, sliders symmetrically sliding on the positioning seats, and fixing blocks respectively fixed to the tops of the two positioning seats and abutting each other. This utility model has a simple structure. The first clamping clamp moves the wedge-shaped blocks downwards to compress the disc, while the sliders drive the fixing blocks away from each other to fix the lifting lug, ensuring that the vibration damper body will not shift during subsequent operations or testing. This provides a stable foundation for accurate testing and related operations, and is convenient for users.

This invention discloses an adjustment device for a laser scanner, relating to the field of laser mapping technology. It includes a hollow outer rod and an inner rod. A guide rod is connected to the bottom inner wall of the outer rod. The inner rod is disposed inside the outer rod and slidably connected to the guide rod. The upper end of the inner rod penetrates the top of the outer rod and extends to the outside. A scanner body is mounted at the bottom of the outer rod and is used to perform laser scanning of stairwells to obtain three-dimensional image data. This invention utilizes the inherent stairwell gaps in building stairwells as a climbing channel. Through the relative extension and retraction of the outer and inner rods, combined with the alternating support of the upper and lower climbing mechanisms, the device achieves autonomous, floor-by-floor climbing within the stairwell. This avoids obstructing normal passage of people in the stairwell due to the equipment occupying the steps, significantly improving the applicability and convenience of the equipment in public buildings.

The present application relates to the production and manufacturing field of new energy battery, specifically relates to a locking device and new energy battery pack automatic assembly line, including base, first limiting piece and second limiting piece, the first limiting piece has first limiting surface and the inclined pushing surface that is inclinedly arranged opposite the first limiting surface, the first limiting surface can be abutted with workpiece bottom surface, and can be moved to locking position along the initial position of Y axis under the pressure action of the workpiece, second limiting piece, the second limiting piece has second limiting surface and moving cooperation surface, the moving cooperation surface is in contact with the inclined pushing surface, wherein, when the initial position of the first limiting piece along Y axis direction moves to locking position, the moving cooperation surface moves along X axis direction under the pushing force of the inclined pushing surface, the second limiting surface and the moving cooperation surface move simultaneously, when moving along the X axis direction, it moves from first initial position to X locking position.

The utility model relates to aluminium alloy machining technical field, concretely is a kind of arc-shaped lamination fixing device for aluminium alloy bending processing, including base, the upper end fixed mounting of base has support, the both ends of the middle part of support one side are equipped with down pressure block, the upper and lower of the middle part of two down pressure block one side are rotatably installed with lamination board no. One side of two sets of lamination board no. is equipped with guide rotation groove no. one, the middle part of two down pressure block one side is fixedly installed with fixed block, the middle part of two fixed blocks is fixedly installed with limit rod no. one, the both ends of limit rod no. one middle part are fixedly installed with limit board no. one, and the periphery of the middle part of two fixed blocks is fixedly installed with a plurality of connecting rods. The utility model solves the shape and structure of traditional arc-shaped lamination fixing device for aluminium alloy bending processing are relatively single, difficult to adjust according to the specific shape of aluminium material, cannot realize the good lamination with various shape aluminium material, there are many problems in actual use.

This utility model relates to the field of municipal pipeline installation technology and discloses a connecting device for municipal pipeline installation, including a first connecting ring and a second connecting ring. A convex ring is provided on the inner surface of the inner sleeve, and a spring is installed on the upper surface of the convex ring. The other end of the spring is installed on the lower surface of the cover plate. This utility model eliminates the traditional threaded connection method, replacing it with bolts that fix the pipeline to the first and second connecting rings. The conical surface of the connecting rod compresses the ball bearings, forcing them to abut against the inner wall of the outer sleeve. This converts the radial pressure into axial displacement of the inner sleeve and compresses the spring. The spring's reaction force is transmitted back to the ball bearings through the convex ring, forming a radial multi-point locking of the connecting rod. Simultaneously, the mechanical locking of the top plate by the fixing plate achieves axial constraint, ensuring that the connecting rod remains without gaps or displacement within the mounting hole under long-term vibration conditions, thus solving the problem of increased fit clearance and separation caused by water hammer effect.

The present application is suitable for the technical field of cutting equipment, and provides a laser cutting device with back adhesive; comprising a frame; a laser cutting component mounted on the frame, the laser cutting component comprising a moving platform and a laser cutter, the moving platform being mounted on the frame, the laser cutter being mounted on the output end of the moving platform, the moving platform being used for driving the laser cutter to move; an adsorption table elastically mounted on the frame and located below the laser cutting component, the surface of the adsorption table being provided with a plurality of negative pressure holes used for providing negative pressure; a ring-shaped protective sleeve sleeved on the outer side of the adsorption table and attached to the adsorption table near the top region of the adsorption table; the ring-shaped protective sleeve comprising a flexible intermediate sleeve, edge auxiliary adsorption sleeves arranged on both sides of the flexible intermediate sleeve and a rotating assembly used for driving the rotation of the edge auxiliary adsorption sleeves, the edge auxiliary adsorption sleeves being provided with micro-porous structures; an automatic cleaning component mounted on the frame; and a winding component mounted on the frame and used for unwinding the back adhesive tape.