2721results about How to "Easy to assemble and disassemble" patented technology

The invention discloses a light aging test instrument, which includes a test cavity, a bottom baseplate, the top cover board which is fixed on the bottom and the top of the test cavity respectively. A lamp socket which fitted with a lamp is right on the centre of the base plate, the photo permeable holes are set at the same height on the side wall of the test cavity. A visual light narrow wave band filter sheet is in the photo permeable hole, and the sample trough is fitted on the photo permeable hole. The test instrument has a compact structure, easy to disassemble and assemble, inflexible for employ, with low cost of the production.

The present application relates to a kind of rocket engine injector thin-wall milling self-positioning fixture and assembly method, it mainly includes upper positioning tire body component, conical surface expansion ring, tire unloading bottom plate, pressing cover plate, tire unloading lifting ring, pressing bolt, expansion screw, lower positioning bottom plate component, locking bolt, long fixed bolt, lower positioning bottom plate component is fixed in machine tool workbench by locking bolt long-term, always not disassembled.Product is positioned and clamped and supported by conical surface expansion ring, tire unloading bottom plate, pressing cover plate, pressing bolt, expansion screw before milling injector thin-wall and positioning tire body component, limit the radial and axial movement of injector thin-wall;Injector thin-wall is positioned and clamped and supported by conical surface expansion ring, tire unloading bottom plate, pressing cover plate, pressing bolt, expansion screw before milling injector thin-wall and positioning tire body component, limit the radial and axial movement of injector thin-wall;Injector thin-wall is positioned and clamped and supported by conical surface expansion ring, tire unloading bottom plate, pressing cover plate, pressing bolt, expansion sleeve before milling injector thin-wall and positioning tire body component, limit the radial and axial movement of injector thinn

The invention relates to the technical field of pet supplies, and particularly discloses a pet water dispenser. The pet water dispenser comprises a shell, a drinking tray assembly, a driving piece and an overturning transmission mechanism. The drinking tray assembly is installed on the shell through a rotating shaft on the side portion, the overturning transmission mechanism comprises a driving sliding block driven by a driving piece and a contour surface arranged on the drinking tray assembly, and the drinking tray assembly is driven to automatically overturn around the rotating shaft to pour sewage through cooperation of the sliding block and the contour surface. A locking mechanism is further arranged, automatic locking is achieved when the rotating shaft is installed in place, and axial loosening of the assembly is prevented. The water dispenser is simple and compact in structure, high in automation degree and reliable in work, and the use safety and convenience are effectively improved.

The utility model belongs to the technical field of plasma rotating electrode powder manufacturing equipment, and relates to a vacuum dynamic sealing structure of a plasma gun for powder manufacturing, which comprises an external powder blocking module and a dynamic sealing module, the external powder blocking module consists of a first powder blocking plate, a powder blocking ring and an insulating powder blocking plate, the first powder blocking plate is fixed at the top of a plasma gun body to form an arc-shaped shielding surface, and the dynamic sealing module is fixed at the top of the plasma gun body. The powder retaining ring coaxially sleeves the positive electrode of the plasma gun body and forms an annular gap type powder blocking structure with the insulating powder retaining plate; the dynamic sealing module is sequentially provided with a dynamic sealing installation metal cylinder, an insulating cylinder and a sealing assembly from outside to inside in the radial direction of the plasma gun body, the insulating cylinder and the dynamic sealing installation metal cylinder form a step-shaped sealing structure, and vacuum sealing and electrical isolation are achieved between the dynamic sealing module and the external powder blocking module through bakelite and an O-shaped sealing ring. The vacuum dynamic sealing structure provided by the utility model has the advantages of powder isolation, reliable sealing, no burning loss short circuit and no need of vacuum grease auxiliary sealing lubrication.

This utility model discloses an anti-glare cover for a lamp, including a lampshade with a driving cavity and a control circuit board cavity within it. The lampshade also has a control switch groove and a display groove connected to the control circuit board cavity. Several lamp bead recesses are provided on the lampshade, and several snap-fit ​​ears for securing the lamp body are integrally formed along the edge of the lampshade. Screw holes are integrally formed on the lampshade. This utility model has a reasonable structural design. The snap-fit ​​ears, combined with the lamp bead recesses, allow the lamp bead lens to be positioned within the recesses, improving anti-glare performance. Furthermore, the driving cavity and control circuit board cavity facilitate the installation and positioning of the drive power supply and control circuit board, enhancing installation convenience and effectiveness. It is easy to assemble and disassemble and has strong applicability.

This utility model relates to the field of plastic granule drying technology, specifically a plastic granule drying and dehumidification circulation system, including a drying chamber body. The drying chamber body is equipped with a dehumidification mechanism, a ventilation mechanism, a heating mechanism, and a storage mechanism. The dehumidification mechanism includes a dehumidification box, and a sliding mechanism is provided between the dehumidification box and the drying chamber body. A sealing groove is opened on one side of the dehumidification box, and a sealing box is provided on the sealing groove. An adsorption layer is provided inside the sealing box, and openings are opened on both sides of the sealing box. Air guide chambers are opened on both sides of the sealing groove, and fans are provided on the air guide chambers. The drying chamber body is equipped with a dedicated dehumidification box, forming an independent airflow circulation. The humid air in the drying chamber is directionally introduced into the adsorption layer of the sealing box by the fan, and the purified dry air is directly returned to the drying chamber. The independent circulation ensures that the dehumidification process is not interfered with by other equipment, improves the humidity control accuracy, and shortens the drying time.

The utility model discloses a kind of wall column foot support structure, including inclined support plate and the horizontal support plate of the inclined support plate rotary connection, the one end of the inclined support plate away from the horizontal support plate is equipped with hook, the hook is matched with the double steel pipe of the pair of screw rod fixed assembly for fixing wall column formwork;When the hook is hung on the double steel pipe of the pair of screw rod fixed assembly, the one end of the inclined support plate away from the hook is abutted with ground, the one end of the horizontal support plate away from the inclined support plate is abutted with the lower end of the square steel of the pair of screw rod fixed assembly.The utility model realizes wall column foot stable support, effectively prevents leakage, improves construction convenience and economy simultaneously.

The application introduces a kind of supporting and fixing device of cylindrical component and its using method, the fixing device includes support beam and the fixed support that sets on both ends of support beam;The fixed support includes support body, support block, swing press plate, compression block, cushion block and locking plate.The structure of the application is reasonable, the cooperation degree is high, and the disassembly and assembly are quick and convenient;The L-shaped hole on the locking plate will not loosen and cause compression failure after contacting with the positioning shaft B to produce pressure and locking the cylindrical product;And when the positioning shaft B is located at the upper part of the L-shaped hole, the two swing press plates are completely opened, compared with the traditional semicircular fixing device, the lifting center of gravity is reduced, and the lifting safety and reliability are guaranteed;The cushion block can be replaced, which is convenient to replace after aging or damage, and prolongs the service life of the fixing device;All components are flexibly connected, compared with the transmission separation type fixing device, to avoid parts scattering;According to the size of the cylindrical component product, multiple fixed supports can be set, which has strong adaptability and wide application range.

The application relates to the technical field of machining equipment, in particular to a deep drilling device for elbow curved rods, which comprises an assembling shell, a hydraulic cylinder is embedded at the top end of the assembling shell, a pressing mechanism is connected to the power output end of the hydraulic cylinder, and a sliding groove is arranged on the abutting surface of the assembling shell and the pressing mechanism. The winding equipment body winds and unwinds the cable, so that the electromagnet connected with the connector through the thread is penetrated into the rod piece. When the hydraulic rod drives the inclined block to press and bend the rod piece, the bearing capacity is improved through the support of the electromagnet, so that the excessive pressing and bending of the rod piece is avoided, the deformation of the rod piece is avoided, the product quality is affected, the electromagnet is connected with the connector through the thread, the electromagnet is convenient to disassemble and assemble, the electromagnet with the diameter size suitable for the rod piece is replaced, the applicability is improved, the rod piece is conveniently attracted after the electromagnet is electrified through the cable, the sliding condition is avoided, the pressing and bending quality is affected, when the electromagnet is not worked, the connector is tightened in the connecting hole through the winding equipment body, and the rod piece is conveniently placed and corresponds to the electromagnet.

The application discloses a grey cloth placing tool and method for floor mat production, and relates to the technical field of industrial automation production. The machine frame is provided with an X-axis driving module, a Y-axis driving module and a Z-axis driving module matched with the cloth lifting module and used for driving the cloth lifting module to move on the machine frame. The application has the advantages that the grey cloth lifting, conveying and flattening are integrated through the cooperation of negative pressure adsorption and tension control structure, and wrinkles are effectively inhibited; the double-mode adsorption of negative pressure and high-frequency vibration is adopted, high-permeability and conventional grey cloth are compatible, and the adsorption failure problem is solved; the vibration structure is self-driven by airflow, and no additional power is needed, so that the structure is simple and reliable; the multi-point flexible adsorption is matched with the rotatable mechanism, so that the grey cloth is protected from damage; the three-axis linkage and modular design improve the automation and universality, adapt to efficient continuous production, and improve the production quality, efficiency and equipment applicability of the floor mat.

The application discloses a strip type NEG (Non Evaporable Getter) pump for a particle accelerator and a use method thereof. The pump comprises a getter assembly, a fixing part, a vacuum flange and an electrode. One end of the getter assembly is provided with the fixing part, the fixing part is fixedly connected with one side of the vacuum flange, the other side of the vacuum flange is provided with the electrode, and the getter assembly is electrically connected with the electrode. The getter assembly comprises two or more getter strips, each getter strip is arranged side by side and fixedly connected with the fixing part at one end, and a gap is reserved between two adjacent getter strips. The use method is that the strip type NEG pump is inserted into a vacuum chamber along the axial direction of the vacuum chamber and then fixedly installed, each getter strip is parallel to the axis of the vacuum chamber, the vacuum flange is fixedly installed with the side wall of the vacuum chamber, and the electrode is externally connected with a power supply device. The application can effectively improve the uniformity of vacuum distribution, maintain a high vacuum degree, avoid misfiring of a beam, has a simple structure, is convenient to install, and can be adapted to the installation requirements of the accelerator vacuum chamber in a large range.

This utility model provides an integrated portable foldable electronic scale device for automobiles, belonging to the field of electronic scales. It includes: two mounting frames, with a hinge fixedly installed between them, rotatably connected by the hinge; a grid plate fixedly installed at the bottom of each mounting frame, with casters fixedly installed at both ends of the inner side of the grid plate; an electronic scale body is installed inside each mounting frame, with locking blocks fixedly installed at both ends of the electronic scale body; locking slots are provided through both ends of each mounting frame, and L-shaped pins are movably installed through and within each locking block. This utility model allows for convenient folding and movement of the electronic scale body, facilitating transportation, maintenance, and modification, thus improving the overall convenience and practicality of the equipment; it also allows for convenient assembly and disassembly of the electronic scale body, further enhancing its practicality.

The utility model relates to a fuel cell stacking tool. The device comprises a stacking bottom plate, a positioning assembly, an air tightness test plate, an adjusting knob, an adjusting platform and a crossbeam; the positioning assembly is composed of a positioning embracing column and a positioning rod; the stacking bottom plate is provided with the positioning embracing column, the positioning embracing column is connected with the positioning rod, and the positioning rod is connected with the crossbeam; the air tightness test plate is fixed on the stacking bottom plate through the positioning embracing column; one side of the positioning embracing column is provided with the adjusting platform, the adjusting platform is provided with the adjusting knob for adjusting the backward or forward movement of the positioning embracing column; the positioning embracing column and the stacking bottom plate are provided with the adjusting knob for adjusting the inclination direction of the positioning embracing column. In the utility model, each component is modularly designed, convenient to disassemble and assemble, and can be compatible with the size change of the small range of the electric pile and the stacking requirement of different numbers of sheets, thereby achieving the effect of saving time and labor in the research and development stage.

This utility model discloses a combined training device, including a base, two weight assemblies, a dumbbell bar, and a kettlebell handle. The two weight assemblies are placed on the base and arranged left and right, with connecting holes on each weight assembly. Each end of the dumbbell bar has a first connecting seat for longitudinal sliding engagement with the weight assembly. The first connecting seat has a mounting hole communicating with the connecting hole. Two spindles, arranged left and right, are disposed inside the dumbbell bar and slide laterally with it, extending into the mounting hole on the same side. The kettlebell handle has a second connecting seat for longitudinal sliding engagement with the weight assembly. The second connecting seat has a socket, a pin, and a locking element. The socket communicates with the connecting hole, the pin passes through the socket, and the locking element locks the pin. The advantage is that it allows for quick switching between dumbbells and kettlebells, making it convenient for users.

The utility model provides a kind of high power density's lead-acid battery assembly structure, belong to battery technical field.This assembly structure includes: be equipped with several along vertical extension's sliding slot on the inner wall of box, bottom frame is equipped with in the bottom surface inside box, several placing grooves are equipped with in the inside of bottom frame, lead-acid battery is located in placing groove, hollow board is equipped with between adjacent lead-acid battery, sliding block is equipped with outside limiting ring, sliding block and sliding slot sliding fit, limiting ring keeps between lead-acid battery and the inner wall of box, plug-in board is equipped with in the lower end of pressure ring, plug-in board is inserted in the mouth, pressure ring is pressed on the upper end of lead-acid battery, locking pin is rotatably connected with in the upper end edge of box, locking pin is pressed on the upper end of pressure ring.This assembly structure can stably play the load bearing, fixed effect to battery, make each outer wall of battery be limited and positioned, to realize good anti-vibration performance.Moreover, this assembly structure is convenient, efficient to disassemble and assemble.

The utility model discloses an engineering surveying and setting-out device relates to engineering surveying tool technical field. The engineering surveying and setting-out device, including main unit, spool and ink chamber, spool is inserted in the inside of main unit, and the ink chamber is clamped in the outside of main unit. The main unit is composed of handle and positioning frame, and the positioning frame is connected to the outside of handle, and the positioning frame includes frame body, frame cover and carousel, and the frame cover is hinged to the frame body, and the carousel is inserted in the inside of frame body, and the outside of frame body is equipped with the clamping groove, and the outside of frame cover is equipped with the clamping block and the slot, and the clamping block is clamped with the clamping groove. The utility model discloses a reasonable structure design, has realized the convenient elastic line marking operation, and the spool replacement is convenient, and the ink chamber dismouting is convenient, has improved the efficiency and accuracy of engineering surveying and setting-out, and has stronger practicality.

The utility model discloses a kind of installation structure of copper busbar, to provide a kind of installation structure of copper busbar when installing copper busbar can be quickly inserted and installed.It includes: copper bar main body, the both ends of copper bar main body are equipped with mounting hole;Plug-in assembly, the plug-in assembly is installed on copper bar main body and corresponds with mounting hole;Expansion block, the expansion block is installed on plug-in assembly.The beneficial effects of the utility model are: when installing copper busbar, it can be quickly inserted and installed, the tightness of sticking can be guaranteed, plug-in assembly can be conveniently disassembled, plug-in assembly can be fixed, fixed block shape can be supported, expansion block can be prevented from coming out, and fixed block can be protected.

The utility model relates to the technical field of gas preparation, and discloses a gas standard substance preparation device which comprises a gas distribution main pipeline and a connecting pipe, a quick release assembly is arranged on the connecting pipe, a safety assembly is arranged on the gas distribution main pipeline, the quick release assembly comprises a mounting block, and an insertion block is movably connected in the mounting block. According to the gas standard substance preparation device, firstly, two pull rods on a mounting block are pulled outwards to the farthest end, a clamping block is straightened to the farthest end along with a sliding block, a spring is compressed, then an insertion block at the top of a gas storage bottle is inserted into a cavity in the mounting block till the top of a connecting base is attached to the bottom of the mounting block, the pull rods are loosened, and under the elastic force action of the spring, the gas storage bottle is fixed to the mounting block. When the gas storage cylinder needs to be disassembled, the pull rod is pulled outwards, the fixing effect of the clamping block on the inserting block is relieved, then the gas storage cylinder is pulled out downwards, quick disassembly can be completed, and the advantage that the gas storage cylinder is convenient to disassemble and assemble is achieved.

The utility model relates to the technical field of passage control equipment, and disclose a vertical non -inductive passage device, including box, identification subassembly, gate and buried part: the lower surface of box and the upper surface of buried part are pasted, the lower surface middle position of box is installed with male block through bolt, is set up in the insertion slot on buried part, the both sides of insertion slot all are set up with lateral groove. This kind of vertical non -inductive passage device, through setting the positioning post on the lower surface of the box, the positioning slot is correspondingly set up on the buried part, the quick accurate positioning of the box and the buried part can be realized by the plug-in cooperation, and the installation process is greatly simplified. At the same time, after the male block of the box bottom inserts the insertion slot of the buried part, the spring in the lateral groove pushes the convex side of the limiting block and the male block to closely adhere, forms effective limiting, and the guiding effect of connecting rod no.

This invention discloses a rail steel transport device, including a fixed ring and a transport vehicle. A connecting ring is movably installed at the top of the fixed ring, and the connecting ring is connected to the transport vehicle through a connector. A telescopic rod is provided on the fixed ring, which is used to achieve docking assembly between adjacent fixed rings. The telescopic rod is equipped with a first screw for locking the telescopic stroke. Movable arms are hinged to both sides of the fixed ring, and clamping arms are hinged to the lower ends of the movable arms. The clamping arms are hinged to each other in pairs, so that the hinge points of the movable arms and clamping arms form a rhomboid structure. The clamping arms are designed with an L-shaped structure. The fixed ring, movable arms, and clamping arms cooperate to form a single clamping structure. This invention uses a double-clamping structure at both ends of the rail steel, combined with a telescopic rod to form an integrated limiting frame. During lifting operations, both ends of the rail are simultaneously stressed, improving the problem of steel body tilting and dragging wear caused by uneven load distribution in traditional single-point fixing.

This utility model discloses a stainless steel steamer with a shelf height adjustment support device, including a steamer body. An adjustment mechanism is inserted inside the steamer body, and the adjustment mechanism includes a plug-in block. The plug-in block's end is inserted into a fixed frame and welded to one end of a return spring. The other end of the return spring is welded to the inner wall of the fixed frame. By pulling a lever, the plug-in block can slide and extend along the fixed frame, facilitating the placement of the guide plate and shelf assembly into the steamer body. After placement, releasing the lever allows the plug-in block to return to its original position within the insertion holes on the inner side of the steamer body, facilitating the assembly and disassembly of the guide plate and shelf assembly. Multiple sets of insertion holes evenly spaced on the inner side of the steamer body allow for easy adjustment of the spacing between multiple shelf units.

The utility model discloses a kind of elbow production mould of magnetic connection and elbow with inner liner, belong to pipeline production technical field, mould includes mould shell, first mould cover and second mould cover, mould cover is placed in pipe body, first mould cover and second mould cover are fixed at the both ends of pipe body.Mould shell includes first module, second module, third module, fourth module and fifth module, first module and second module are respectively located at the both ends of pipe body, first module extends pipe body, second module and second mould cover sealing connection, third module, fourth module and fifth module are located at the intermediate position of pipe body, fifth module is between third module and fourth module, third module, fourth module and fifth module are magnetically attracted and connected, third module, fourth module and fifth module are magnetically attracted and connected with first module and second module.The utility model provides a kind of elbow production mould of magnetic connection, dismounting is convenient, the manufacturing process of mould is simple, and moulding is more accurate.

The utility model discloses a dual -purpose screwdriver with detachable cutter cover, including screwdriver body and detachable connection setting the cutter cover unit on screwdriver body, the both ends of screwdriver body are provided with torque adjusting assembly and rigid output assembly respectively, torque adjusting assembly includes: torque cavity, axial opening is in screwdriver body, elastic part is set up in torque cavity, torque joint, part extends to screwdriver body outside, and its outer wall is equipped with spiral guide portion, guide column is fixed in torque cavity inner wall, and is rotatably connected with spiral guide portion, the cutter cover unit detachable cover is combined in torque adjusting assembly or the end of rigid output assembly, the utility model discloses structure design is reasonable, is provided with torque adjusting assembly and rigid output assembly through setting, has realized the diversification of screwdriver function, has met the demand of different tightening operation to torque, and cutter cover unit detachable is convenient for user to hold operation, and the use experience is promoted.

This utility model discloses a handheld beauty spray device, belonging to the field of beauty instruments. It includes a first housing and a second housing, which are detachably connected. A receiving cavity exists between the first and second housings, housing a jet assembly, a first mounting base, and a second mounting base. The jet assembly includes a first tube, a second tube, and a solenoid valve. The first mounting base has a first positioning groove and a liquid inlet pipe. One end of the liquid inlet pipe is connected to the first positioning groove, and the other end is connected to the first tube. The first positioning groove is used to install an essence bottle, and the bottle opening of the essence bottle is connected to the liquid inlet pipe. The second mounting base has a second positioning groove and an air inlet pipe. One end of the air inlet pipe is connected to the second positioning groove, and the other end is connected to the second tube. The second positioning groove is used to install a high-pressure gas cylinder, and the bottle opening of the high-pressure gas cylinder is connected to the air inlet pipe. This design reduces the noise of the beauty spray device and improves the user experience.

This application relates to a force-controlled belt sander and grinding equipment, applicable to the field of belt sanders. It includes a force-controlled actuator, a connecting structure, and a grinding mechanism. The grinding mechanism is detachably mounted to the force-controlled actuator along a first direction via the connecting structure. The connecting structure includes a connecting end plate for connecting the force-controlled actuator, multiple connecting parts, and multiple sets of locking parts. The connecting parts are spaced apart along the periphery of the connecting end plate, extend along the first direction, and connect to the grinding mechanism. The locking parts are correspondingly arranged with the connecting parts and can be inserted into the connecting parts and the connecting end plate along a second direction to fix the connecting end plate to the connecting parts. By setting the locking parts to be fixed from the side of the force-controlled actuator and the grinding mechanism, this application expands the operating space during locking part assembly, allowing maintenance personnel to perform disassembly and assembly operations more conveniently, thereby effectively improving the disassembly and assembly efficiency of the force-controlled belt sander and reducing assembly difficulty.

The utility model discloses a kind of vacuum packaging structures of microwave transmission device, for forming the microwave energy transmission environment of vacuum, including packaging shell and the cover plate of setting packaging shell, the cable hole for power line bundle to enter is opened in packaging shell, sealing mechanism is set at cable hole and is blocked;The sealing ring is set between the contact surface of cover plate and packaging shell, lock catch plate is set in the outer periphery of cover plate, lock catch plate and cover plate edge rotation cooperation, the buckle block of being coupled of lock catch plate is set to packaging shell outer wall, the buckle block is slidably connected with packaging shell along the direction perpendicular to the board surface of cover plate, the utility model will buckle block sliding arrangement, and buckle block is moved by sliding drive mechanism, can be closed, first lock catch plate and buckle block are connected, then locking is carried out by sliding drive mechanism, so as to can reduce installation difficulty, and the compression tightness of sealing ring is flexibly controlled and adjusted.

The utility model belongs to the technical field of waste heat utilization equipment, and particularly relates to a waste heat boiler which comprises a waste heat boiler body and supporting legs, a waste heat recovery structure is arranged above the waste heat boiler body and comprises a filtering mechanism and a recovery mechanism, and the filtering mechanism comprises a supporting plate, a gas guide pipe, an installation plate, a fixing plate and a rotating rod. The top of the supporting plate is connected with the bottom of the recycling box, one end of the waste heat boiler communicates with one end of the gas guide pipe, and the two ends of the mounting plate are connected with the inner wall of the recycling box. According to the waste heat boiler, after flue gas enters the recycling bin, the flow speed is reduced, the retention time is prolonged, the filter screen can effectively intercept solid impurities in the flue gas, pollutant emission is reduced, environmental pollution is avoided, impurities accumulated on the surface of the filter screen can be automatically removed, blocking is prevented, and the filtering efficiency is maintained; and meanwhile, the filter screen can be quickly and conveniently disassembled and assembled, and the working efficiency of the waste heat boiler is improved.

The utility model discloses a CVD coating frock suitable for arc top blind pipe class product outer wall surface, including cloth gas board, install a plurality of support pegs on cloth gas board, and arc top blind pipe adopts the mode of arc top downward, flat mouth upward and deposits, be equipped with the gas hole on the cover, and the support post one side is equipped with the thimble, and the support peg body and the support post lower part all are equipped with the support ring board, and the support ring board's lower part all are equipped with the assembly guide rod, and the assembly guide rod both sides are equipped with the first plane, and the neck-in portion outside is equipped with the buckle, and the buckle middle part is equipped with the assembly hole that cooperates with the assembly guide rod, and the assembly hole both sides are equipped with the second plane corresponding with the first plane, the utility model discloses arc top blind pipe adopts the mode of arc top downward, flat mouth upward and deposits, and the technological gas goes in and goes out, and arc top downward is favorable to dispersing airflow, guarantees the deposition effect of arc top, from outside, and the support peg and the support post lower part are connected with cloth gas board through the buckle, avoids the problem that traditional screw connection is difficult to separate because of CVD product coating adhesion, and is convenient to dismount.