Heat preservation and insulation curtain and production process

By designing specific structures and processes on the fixing plates and curtains of the insulation curtains, the problems of high labor intensity and complex operation during installation and replacement in the prior art are solved, and the convenient disassembly and assembly of the single-piece curtains are achieved.

CN119636088APending Publication Date: 2025-03-18LIXIN FUYA GAUZE CO LTD

Patent Information

Application Number
CN202411954274.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

The existing insulation and thermal insulation curtains have problems such as large labor, high operating intensity, high safety risks and complex operation when installed and replaced.

Method used

The insulation and heat-insulating curtain structure is adopted for front and back, and the fixed plate two is installed front and back on the fixed plate one, and the curtain is fixed on the fixed plate two by bolts and pressing strips, and hot melt grooves are provided on the curtain and edge strip to improve structural stability.

Benefits of technology

It realizes the convenient disassembly and assembly of a single-piece curtain body, improves the pressure holding stability and structural stability of the edge-covering and curtain body, and reduces the labor intensity and safety risks of installation and replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a heat preservation and heat insulation curtain and a production process, and provides a heat preservation and heat insulation curtain structure installed front and back, a second fixing plate is installed on a first fixing plate in a front-back rotating and hooking mode, and compared with a traditional overall installation mode or a transverse horizontal insertion mode, the heat preservation and heat insulation curtain can facilitate independent disassembly and assembly operation of a single curtain body. Limiting bosses are additionally arranged on the second fixing plate and the pressing strip, so that the pressing stability can be effectively improved. The groove planing structure is additionally arranged on the curtain body and matched with the matching body arranged on the edge covering strip, so that the structural stability of the covering edge and the curtain body during hot melting operation can be improved, and the problem that the edge covering strip deviates is solved.
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Description

Technical Field

[0001] The invention relates to a thermal insulation curtain processing technology, in particular to a thermal insulation curtain and a production process. Background Art

[0002] The materials of thermal insulation curtains usually include PVC, fiberglass, polyester, etc. These materials have good thermal insulation properties and can effectively reduce the accumulation of indoor heat, thereby reducing indoor temperature and energy consumption. In addition, thermal insulation curtains can also maintain indoor temperature in winter and reduce heating consumption. Among them, thermal insulation curtains made of PVC material are generally used on door frames in supermarkets, cold storage and other places that require insulation. When processing and producing this type of thermal insulation curtain, in order to facilitate entry and exit, multiple pieces are assembled to cover the entry and exit channels. Since multiple pieces are assembled, there will be a problem that the adjacent pieces cannot be effectively adsorbed and sealed. Therefore, soft magnetic strips are set on both sides of the curtain body, and soft magnetic strips are used for adsorption and sealing.

[0003] After searching, it was found that CN202222797782.9 discloses a magnetic door curtain that is installed integrally through the installation rod. This technology has the following problems:

[0004] 1. Existing thermal insulation curtains are generally installed as a whole. For some scenes with extra-large width and extra-long width, the weight of a single curtain reaches 2-5kg. The overall installation requires manual use of ladders for aerial suspension, which is labor-intensive and has high work intensity and certain safety risks.

[0005] 2. The existing thermal insulation curtains are easily damaged due to frequent opening and closing by people, and need to be replaced separately. The overall installation method requires one side of the curtain to be removed before it can be taken out for replacement, which is complicated to operate. Summary of the invention

[0006] In order to solve the above technical problems, the inventors have obtained the technical solution of the present invention through practice and summary. The present invention adopts the following technical solution:

[0007] A thermal insulation curtain, comprising:

[0008] A fixing plate 1 is provided with a mounting hole, a bolt is installed in the mounting hole and fixed to the door frame, an upper stop bar and a lower stop bar are integrally provided on the front side of the fixing plate 1, a lower eave body extending downward is provided at one end of the upper stop bar away from the fixing plate 1, an upper eave body extending upward is provided at one end of the lower stop bar away from the fixing plate 1, a gap is reserved between the upper eave body and the lower eave body, and the gap is used for fixing plate 2 to be installed on the fixing plate 1;

[0009] A second fixing plate, on which a horizontal plate extending backward is arranged, the top of which is integrally connected with an upper baffle extending upward and a lower baffle extending downward, a pressure strip is installed on the second fixing plate by bolts, and the pressure strip is used to fix the curtain body on the second fixing plate;

[0010] The curtain body includes a curtain body, soft magnetic strips are tightly attached to both sides of the curtain body, and edging strips are arranged on the outer sides of the soft magnetic strips. The edging strips wrap the soft magnetic strips and fix them on the sides of the curtain body. The curtain body and the edging strips are fused together, and a hot melt groove 1 located on the front side and a hot melt groove 2 located on the back side are arranged on the surface of the fusion area. The hot melt groove 1 and the hot melt groove 2 are staggered along the length direction of the curtain body.

[0011] Preferably, the fixing plate 2 is provided with a limiting boss 1 corresponding to the position of the hot-melt groove 1, and the pressure strip is provided with a limiting boss 2 corresponding to the position of the hot-melt groove 2.

[0012] Preferably, a planing groove structure is provided on the surface of the curtain body, and the side of the planing groove structure away from the middle of the curtain body is a matching surface, and the matching surface gradually moves away from the middle of the curtain body along the depth direction, and a matching body adapted to the planing groove structure is provided on the edge strip;

[0013] The angle between the matching surface and the side wall of the curtain body is 1-5°.

[0014] Preferably, a diagonal brace is integrally provided between the fixing plate 1 and the bottom of the lower baffle.

[0015] Preferably, an adjusting wire is connected to the upper eaves body through a thread, and after the second fixing plate is installed in the first fixing plate, the adjusting wire abuts against the second fixing plate.

[0016] Preferably, a slide groove is provided on the inclined support, and moving block 1 and moving block 2 are installed in the slide groove, moving block 1 is connected to the adjusting wire via steel wire 1, and moving block 2 is connected to the adjusting wire via steel wire 2, and steel wire 1 and steel wire 2 are both wound around the adjusting wire and the winding directions are opposite.

[0017] Preferably, two groups of ratchet grooves are arranged at the bottom side opening of the slide groove, and the restriction directions of the two groups of ratchet grooves are opposite. Both the moving block 1 and the moving block 2 are provided with elastic ratchet blocks, and the two groups of elastic ratchet blocks are respectively adapted to the corresponding ratchet grooves.

[0018] Preferably, a limiting blind hole is provided on the second fixing plate, the limiting blind hole corresponds to the position of the adjusting wire, and the depth is 1-4 mm.

[0019] Preferably, an outer boss is integrally connected to one side of the upper eaves body opposite thereto, and a guide slope inclined upward is provided on the top of the outer boss, and the distance between the plane where the guide slope is located and the plane where the plane is parallel to the guide slope and passes through the bottom surface of the lower eaves body and close to the second side of the fixing plate is greater than or equal to the thickness of the upper baffle body or the lower baffle body;

[0020] The sum of the thickness of the outer boss and the thickness of the upper eaves body is equal to the distance between the lower baffle body and the second fixing plate.

[0021] A production process for a thermal insulation curtain, comprising:

[0022] Processing:

[0023] Step 1: Fixing plate 1, fixing plate 2, layering processing

[0024] The aluminum billet is heated at high temperature, and the aluminum billet is deformed and extruded from a forming opening in a die under the pressure and speed set by an extruder, so as to obtain a fixing plate 1, a fixing plate 2 and a pressure strip;

[0025] A mounting hole, a slide groove, a ratchet groove, and an internal thread hole are provided on the fixing plate 1, an adjusting wire is installed in the internal thread hole, a steel wire 1 and a steel wire 2 are wound around the adjusting wire, a moving block 1 and a moving block 2 are installed in the slide groove, the moving block 1 is connected to the steel wire 1, and the moving block 2 is connected to the steel wire 2;

[0026] A threaded blind hole and a limiting blind hole are opened on the second fixing plate, the limiting blind hole and the adjusting thread are located in corresponding positions, and a limiting boss 1 is obtained by extrusion molding;

[0027] A through hole is opened on the pressure strip, the position of the through hole corresponds to the position of the threaded blind hole, and a second limiting boss is obtained by extrusion molding;

[0028] Step 2: Curtain body processing

[0029] 21) Curtain body is extended

[0030] Install the curtain body outer roller on the output end of the external discharge motor, and drive the curtain body outer roller to be released through the reducer;

[0031] 22) Grooving the surface of the curtain body

[0032] The lifting cylinder drives the planing frame to deflect toward the side close to the curtain body until the planing tool moves down to the required planing depth. The motor drives the planing tool to rotate at high speed. The curtain body is horizontally transported by two sets of level rollers and planed by the planing tool.

[0033] While the groove is being planed, the air supply pump stabilizes the pressure and delivers high-pressure gas to the blowing plate. The high-pressure gas blows through the blowing port to stably blow the curtain body on the matching surface side, ensuring that the curtain body on the matching surface side will not turn outward.

[0034] 23) Soft magnetic strip external

[0035] The soft magnetic strip external roller is installed on the mounting frame in advance and connected to the output end of the external discharge motor 2. The external discharge speed of the external discharge motor 3 is the same as that of the external discharge motor 1. The side pressure roller 1 presses the external soft magnetic strip against the side of the curtain body.

[0036] 24) The edge strip is placed outside

[0037] The edge strip outward roller is installed on the mounting frame in advance and connected to the output end of the external discharge motor 3. The outward speed of the external discharge motor 3 is the same as that of the external discharge motor 1. The side pressure roller 2 makes the outward edge strip contact the outside of the soft magnetic strip. The inward pressure roller turns the edge strip inward and matches it with the notch on the surface of the curtain body. The negative pressure pores of the outer cylinder absorb the edge strip and lift it to the planing groove area on the curtain body, and match it in the planing groove structure.

[0038] 25) Edge binding-curtain body fusion

[0039] The upper forming plate and the lower forming plate are respectively close to the curtain body under the action of the cylinders independently equipped, and the externally protruding hot melt performs hot melting operation on the edge strip and the curtain body, and hot melting grooves 1 and 2 are respectively formed on the edge strip after hot melting, and the hot melting grooves 1 and 2 are staggered along the length direction of the curtain body;

[0040] 26) Cut to length

[0041] Cut the hot-melted edge strips and curtain body to the set length;

[0042] 27) Drilling and counterweight installation

[0043] Drill a hole at one end of the curtain body and install a counterweight at the other end;

[0044] Step 3: Assemble the curtain body, pressure strips and fixings

[0045] The second fixing plate and the pressure strip are respectively placed on the rear and front sides of the curtain body, and the limiting boss 1 is matched with the hot melt groove 1, and the limiting boss 2 is matched with the hot melt groove 2, and the bolts penetrate the pressure strip and are threadedly connected to the threaded blind hole to press and fix the curtain body;

[0046] Installation process:

[0047] Step 4: Assemble the fixing plate 1 and fixing plate 2

[0048] Fix the fixing plate 1 on the door frame, tilt the fixing plate 2, and the upper baffle body enters the area between the upper baffle bar and the lower baffle bar from the gap until the upper baffle body abuts against one side wall of the fixing plate. Move the fixing plate 2 upward and rotate the fixing plate 2 downward until the end of the adjustment wire abuts against the fixing plate 2. At this time, the lower baffle body completely enters the area between the upper baffle bar and the lower baffle bar from the gap, and lower the fixing plate 2 vertically downward until the lower baffle body falls on the top surface of the lower baffle bar.

[0049] The elastic ratchet block on the adjusting moving block 1 is disengaged from the corresponding ratchet groove, and the moving block 1 is moved horizontally to drive the adjusting wire to rotate to achieve the extension of the end. At the same time, the moving block 2 is moved horizontally in the opposite direction relative to the moving block 1 along the sliding groove through the elastic ratchet block, so that the end of the adjusting wire is matched with the limiting blind hole;

[0050] Step 5: Separate the fixing plate 1 and fixing plate 2

[0051] When it is necessary to replace a single curtain body, the elastic ratchet block on the second adjustment moving block is disengaged from the corresponding ratchet groove, and the second moving block is moved horizontally to drive the adjusting wire to rotate to achieve the inward retraction of the end. At the same time, the first moving block is moved horizontally in the opposite direction relative to the second moving block along the sliding groove through the elastic ratchet block, and the end of the adjusting wire is separated from the limiting blind hole;

[0052] Lift the second fixing plate until the upper baffle body abuts against the bottom surface of the upper baffle bar, keep the upper baffle body and the lower eaves body abutting against each other, rotate the bottom of the second fixing plate upward to the side away from the first fixing plate, until the top of the second fixing plate abuts against the outer wall of the lower eaves body, keep the upper baffle body and the lower eaves body abutting against each other and move the second fixing plate obliquely downward;

[0053] Select the curtain body to be installed, and repeat step 4 to complete the replacement of the single curtain body. Compared with the prior art, the present invention has the following beneficial effects:

[0054] 1. The present invention provides a front-to-back installed thermal insulation curtain structure, in which the second fixing plate is installed on the first fixing plate front-to-back. Compared with the traditional overall installation method or the horizontal insertion method, it is convenient for the individual disassembly and assembly of the single curtain body.

[0055] 2. In the present invention, the additional limiting bosses on the second fixing plate and the pressure strip can effectively improve the pressure holding stability.

[0056] 3. The present invention adds a planing groove structure on the curtain body, which, together with the matching body setting on the edge strip, can improve the structural stability of the edge strip and the curtain body during hot-melt operation and prevent the edge strip from deviating.

[0057] 4. The present invention adds an adjustment wire on the upper eaves body, and the adjustment wire can be used to horizontally tighten the fixed plate 2 to improve the torsion resistance of the structure. Secondly, a limit blind hole corresponding to the adjustment wire is set on the fixed plate 2 to limit the vertical and horizontal deviation of the fixed plate 2 after installation, thereby reducing the wear of the fixed plate 2. The inward and outward extension of the adjustment wire is achieved by the lateral movement of the moving block 1 and the moving block 2, and the moving block 1 and the moving block 2 are provided with elastic ratchet blocks and ratchet grooves in the slide groove. The two work together to solve the problem that the adjustment wire is easy to loosen.

[0058] 5. The present invention arranges external bosses on the outer sides of the upper eaves body and the diagonal support body, and utilizes the external bosses to facilitate the installation of the second fixing plate and the stability of the front and rear after installation.

[0059] 6. When the matching body and the planing groove structure are matched, the present invention uses an inward-turned pressure roller to absorb the edge strip and pull it inwardly toward the planing groove structure to complete the matching operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0061] Figure 2 The connection relationship between the fixing plate 1 and the fixing plate 2 of the present invention is Figure 1 ;

[0062] Figure 3 for Figure 2 A side view of the structure;

[0063] Figure 4 for Figure 2 The structural replacement operation process diagram;

[0064] Figure 5 The connection relationship between the fixing plate 1 and the fixing plate 2 of the present invention is Figure 1 ;

[0065] Figure 6 for Figure 5 A side view of the structure;

[0066] Figure 7 for Figure 6 A partial enlarged view of the middle A;

[0067] Figure 8 for Figure 6 A cross-sectional view of the middle chute along the length direction;

[0068] Fig. 9 for Figure 5 The structural replacement operation process diagram;

[0069] Fig.10 The connection relationship between the fixing plate 1 and the fixing plate 2 of the present invention is Figure 1 ;

[0070] Fig.11 for Fig.11 A side view of the structure;

[0071] Fig.12 for Fig.11 The structural replacement operation process diagram;

[0072] Fig.13 Schematic diagram of the layering structure;

[0073] Fig.14 It is a partial cross-sectional view of the side of the curtain body;

[0074] Fig.15 It is a top view of the curtain body processing equipment;

[0075] Fig.16 A top view of the planing mechanism of the present invention;

[0076] Fig.17 A side view of the planing mechanism of the present invention;

[0077] Fig.18 A lateral perspective view of the planing mechanism of the present invention;

[0078] Fig.19 It is a schematic diagram of the overall structure of the inverted pressure roller of the present invention;

[0079] Fig. 20 This is a working diagram of the inverted pressure roller of the present invention;

[0080] Fig.21 Position relationship diagram of the upper forming plate and the lower forming plate

[0081] In the figure:

[0082] 100, fixed plate 1; 101, upper stop bar; 102, lower stop bar; 103, lower eaves body; 104, upper eaves body; 105, adjustment wire; 106, steel wire 1; 107, steel wire 2; 108, moving block 1; 109, moving block 2; 110, slide groove; 111, elastic ratchet block; 112, outer boss; 200, fixed plate 2; 201, horizontal plate; 202, upper stop body; 203, lower stop body; 204, limiting boss 1; 300, pressure strip; 301, limiting boss 2; 400, curtain body; 401, curtain body; 4011, planing groove structure; 402, soft magnetic strip; 403, edge strip; 4031, matching body;

[0083] 10. Curtain release mechanism; 11. Curtain release frame; 12. Curtain release roller; 13. External discharge motor 1; 20. Grooving mechanism; 21. Support frame; 22. Upper beam; 23. Lower beam; 24. Grooving frame; 25. Grooving tool; 26. Motor; 27. Lifting cylinder; 28. Blowing plate; 29. ​​Negative pressure collection nozzle; 30. Soft magnetic strip release mechanism; 31. Mounting frame; 32. External discharge motor 2; 33 , side pressure roller one; 34, soft magnetic strip outward roller; 40, edging strip outward mechanism; 41, external discharge motor three; 42, side pressure roller two; 43, inward pressure roller; 431, inner core; 432, outer cylinder; 433, negative pressure pores; 434, negative pressure port; 44, edging strip outward roller; 50, edging-curtain body hot melt mechanism; 51, upper molding plate; 52, lower molding plate; 56, external convex hot melt; 60, level roller. DETAILED DESCRIPTION

[0084] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0085] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0086] like Figures 1 to 3 As shown, a heat insulation curtain comprises: a fixing plate 100, a fixing plate 200, and a curtain body 400.

[0087] The fixing plate 100 is provided with a mounting hole, in which bolts are installed to be fixed to the door frame. An upper baffle 101 and a lower baffle 102 are integrally provided on the front side of the fixing plate 100. A lower eaves body 103 extending downward is provided at one end of the upper baffle 101 away from the fixing plate 100, and an upper eaves body 104 extending upward is provided at one end of the lower baffle 102 away from the fixing plate 100. A gap is reserved between the upper eaves body 104 and the lower eaves body 103, and the gap is used for fixing plate 200 to be installed on the fixing plate 100.

[0088] A horizontal plate 201 extending backward is provided on the fixed plate 200, and an upper baffle 202 extending upward and a lower baffle 203 extending downward are integrally connected to the top of the horizontal plate 201. A pressure strip 300 is installed on the fixed plate 200 by bolts, and the pressure strip 300 is used to fix the curtain body 400 on the fixed plate 200.

[0089] The curtain body 400 includes a curtain body 401, and soft magnetic strips 402 are tightly attached to both sides of the curtain body 401. Edge strips 403 are arranged on the outer sides of the soft magnetic strips 402. The edge strips 403 wrap the soft magnetic strips 402 and fix them on the sides of the curtain body 401. The curtain body 401 and the edge strips 403 are fused together, and a hot melt groove 1 located on the front side and a hot melt groove 2 located on the back side are arranged on the surface of the fusion area. The hot melt groove 1 and the hot melt groove 2 are staggered along the length direction of the curtain body 401.

[0090] The fixing plate 200 is provided with a limiting boss 204 corresponding to the position of the hot melt groove 1. Fig.13 As shown, the pressure strip 300 is provided with a second limiting boss 301 corresponding to the position of the second hot-melt groove.

[0091] On this basis, if Fig.14As shown, the surface of the curtain body 400 is provided with a planing groove structure 4011, and the side of the planing groove structure 4011 away from the middle of the curtain body 400 is a matching surface, and the matching surface gradually moves away from the middle of the curtain body 400 along the depth direction, and the edge strip 403 is provided with a matching body 4031 adapted to the planing groove structure 4011;

[0092] The angle between the matching surface and the side wall of the curtain body 400 is 1-5°.

[0093] An improved implementation method:

[0094] like Figure 6 , 7 As shown in Figures 8 and 9, a diagonal support body is integrally provided between the fixing plate 100 and the bottom of the lower baffle bar 102.

[0095] The lower stop bar 102 is connected with an adjusting wire 105 via a thread. After the second fixing plate 200 is installed in the first fixing plate 100 , the adjusting wire 105 abuts against the second fixing plate 200 .

[0096] Wherein, a slide groove 110 is provided on the oblique support, and the slide groove 110 is a slot that is wide in the middle and narrow at both ends. A moving block 108 and a moving block 109 are installed in the slide groove 110. The moving block 108 is connected to the adjustment wire 105 via the steel wire 106, and the moving block 109 is connected to the adjustment wire 105 via the steel wire 2. The steel wire 106 and the steel wire 2 are both wound around the adjustment wire 105 and the winding directions are opposite. The distance between the top of the free end of the adjustment wire 105 and the plane where the upper eaves body 104 is located away from the fixed plate 100 and the plane parallel to the plane and passing through the bottom surface of the lower eaves body 103 and close to the fixed plate 200 is greater than or equal to the thickness of the upper baffle body 202 or the lower baffle body 203;

[0097] The sum of the thickness of the outer boss 112 and the thickness of the upper eaves 104 is equal to the distance between the lower baffle 203 and the second fixing plate 200.

[0098] Two groups of ratchet grooves are arranged at the bottom side opening of the slide groove 110, and the restriction directions of the two groups of ratchet grooves are opposite. Both the moving block 108 and the moving block 2 109 are provided with elastic ratchet blocks 111, and the two groups of elastic ratchet blocks 111 are respectively adapted to the corresponding ratchet grooves.

[0099] The second fixing plate 200 is provided with a limiting blind hole, which corresponds to the position of the regulating wire 105 and has a depth of 1-4 mm.

[0100] Fix the fixing plate 100 on the door frame, tilt the fixing plate 200, and the upper baffle 202 enters from the gap into the area between the upper baffle 101 and the lower baffle 102 until the upper baffle 202 abuts against the side wall of the fixing plate 100. Move the fixing plate 200 upward and rotate the fixing plate 200 downward until the end of the adjustment wire 105 abuts against the fixing plate 200. At this time, the lower baffle 203 completely enters from the gap into the area between the upper baffle 101 and the lower baffle 102, and lower the fixing plate 200 vertically downward until the lower baffle 203 falls on the top surface of the lower baffle 102.

[0101] The elastic ratchet block 113 on the adjusting moving block 108 is disengaged from the corresponding ratchet groove, and the moving block 108 is moved horizontally to drive the adjusting wire 105 to rotate to achieve the extension of the end. At the same time, the moving block 2 109 is moved horizontally in the opposite direction relative to the moving block 108 along the sliding groove 110 through the elastic ratchet block 113, and the end of the adjusting wire 105 is matched with the limiting blind hole.

[0102] When it is necessary to replace the single curtain body 400, the elastic ratchet block 113 on the second adjustment moving block 109 is disengaged from the corresponding ratchet groove, and the second movement moving block 109 is moved horizontally to drive the adjustment wire 105 to rotate to achieve the inward retraction of the end portion, and the movement block 108 is moved horizontally in the opposite direction relative to the second movement block 109 along the slide groove 110 via the elastic ratchet block 113, and the end portion of the adjustment wire 105 is separated from the limiting blind hole;

[0103] Lift the fixing plate 200 until the upper baffle 202 abuts against the bottom surface of the upper baffle bar 101, keep the upper baffle 202 and the lower eaves body 103 abutting against each other, and rotate the bottom of the fixing plate 200 upward toward the side away from the fixing plate 1 100 until the top of the fixing plate 200 abuts against the outer wall of the lower eaves body 103, keep the upper baffle 202 and the lower eaves body 103 abutting against each other and move the fixing plate 200 obliquely downward.

[0104] An improved implementation method:

[0105] like Fig.10 , 11 As shown in 12, the opposite side of the upper eaves body 104 is integrally connected with an outer boss 112 and the top of the outer boss 112 is provided with an oblique upward guide slope, and the distance between the plane where the guide slope is located and the plane where the guide slope is parallel to the guide slope and passes through the bottom surface of the lower eaves body 103 and is close to the second fixing plate 200 is greater than or equal to the thickness of the upper baffle body 202 or the lower baffle body 203;

[0106] The sum of the thickness of the outer boss 112 and the thickness of the upper eaves body 104 is equal to the distance between the lower baffle body 203 and the second fixing plate 200 .

[0107] When installing the fixing plate 200, the upper baffle body 202 is allowed to enter the gap and abut against the guide slope. The upper baffle body 202 is lifted along the guide slope until the top of the upper baffle body 202 abuts against the side wall of the fixing plate 100. Then, the upper baffle body 202 is lifted up and the bottom of the fixing plate 200 is rotated downward, causing the lower baffle body 203 to enter the internal space from the gap. At this time, the side wall of the fixing plate 200 is attached to the side wall of the external boss 112. Finally, the fixing plate 200 is lowered until the lower baffle body 203 is located on the top surface of the lower baffle bar 102. At this time, the external boss 112 limits the front and rear positions of the fixing plate 200.

[0108] A production process for a thermal insulation curtain, comprising:

[0109] Processing:

[0110] Step 1: Processing of fixed plate 1 100, fixed plate 2 200, and pressure strip 300

[0111] The aluminum billet is heated at high temperature, and the aluminum billet is deformed under the pressure and speed of the extruder, and extruded from the forming opening in the mold to obtain the fixing plate 100, the fixing plate 200 and the pressure strip 300;

[0112] A mounting hole, a slide groove 110, a ratchet groove, and an internal threaded hole are provided on the fixing plate 100, an adjusting wire 105 is installed in the internal threaded hole, a steel wire 106 and a steel wire 2 are wound around the adjusting wire 105, a moving block 108 and a moving block 2 109 are installed in the slide groove 110, the moving block 108 is connected to the steel wire 106, and the moving block 2 109 is connected to the steel wire 2;

[0113] A threaded blind hole and a limiting blind hole are opened on the second fixing plate 200, the limiting blind hole and the adjusting wire 105 are located in a corresponding position, and a limiting boss 204 is obtained by extrusion molding;

[0114] A through hole is formed on the pressure strip 300, the position of the through hole corresponds to the position of the threaded blind hole, and a second limiting boss 301 is obtained by extrusion molding;

[0115] Step 2: Curtain body processing

[0116] 21) Curtain body 401 is placed outside

[0117] The roller 12 of the curtain body 401 is installed on the output end of the external discharge motor 13, and the roller 12 of the curtain body 401 is driven by the speed reducer to release the curtain body 401;

[0118] 22) Grooving the surface of curtain body 401

[0119] The lifting cylinder 27 drives the groove planing frame 24 to deflect toward the side close to the curtain body 401 until the groove planing tool 25 moves downward to the required groove planing depth position, and the motor 26 drives the groove planing tool 25 to rotate at high speed, and the curtain body 401 is horizontally transported by two sets of level rollers 60, and the groove planing tool 25 performs the groove planing operation;

[0120] While the groove is being planed, the air supply pump stabilizes the pressure and delivers high-pressure gas to the blowing plate 28. The high-pressure gas blows the curtain body 401 on the mating surface side through the blowing port to stably blow the curtain body 401 on the mating surface side, ensuring that the curtain body 401 on the mating surface side will not turn outward.

[0121] 23) Soft magnetic strip 402 external

[0122] The roller 34 for releasing the soft magnetic strip 402 is installed on the mounting frame 31 in advance and connected to the output end of the external discharge motor 2 32. The external discharge speed of the external discharge motor 3 41 is the same as that of the external discharge motor 1 13. The side pressure roller 1 33 makes the external soft magnetic strip 402 close to the side of the curtain body 401.

[0123] 24) Edge strip 403 external

[0124] The outer roller 44 of the edge strip 403 is installed on the mounting frame 31 in advance and connected to the output end of the outer discharge motor 3 41. The outer discharge speed of the outer discharge motor 3 41 is the same as that of the outer discharge motor 1 13. The side pressure roller 2 42 makes the outer edge strip 403 abut against the outer side of the soft magnetic strip 402. The inner pressure roller 43 turns the edge strip 403 inward and matches it with the notch on the surface of the curtain body 401. The negative pressure pore 433 of the outer cylinder 432 absorbs the edge strip to the planed groove area on the curtain body 401 and matches it in the planed groove.

[0125] 25) Edge binding-curtain body 401 fusion

[0126] The upper forming plate 51 and the lower forming plate 52 are respectively moved close to the curtain body 401 by the action of their independently equipped cylinders, and the protruding hot melt body 56 performs hot melting operation on the edging strip 403 and the curtain body 401. After hot melting, hot melt groove 1 and hot melt groove 2 are respectively formed on the edging strip 403, and hot melt groove 1 and hot melt groove 2 are staggered along the length direction of the curtain body 401.

[0127] 26) Cut to length

[0128] The hot-melted edge strip 403 and the curtain body 400 are cut to a set length;

[0129] 27) Drilling and counterweight installation

[0130] A hole is punched at one end of the curtain body 400 and a counterweight is installed at the other end;

[0131] Step 3: Assemble the curtain body 400, the pressure strip 300, and the fixing two groups

[0132] The second fixing plate 200 and the pressure strip 300 are respectively placed on the rear and front sides of the curtain body 400, and the limiting boss 1 204 is matched with the hot melt groove 1, and the limiting boss 2 301 is matched with the hot melt groove 2, and the bolts penetrate the pressure strip 300 and are threadedly connected with the threaded blind hole to press and fix the curtain body 400;

[0133] Installation process:

[0134] Step 4: Assemble the fixing plate 1 100 and the fixing plate 2 200

[0135] Fix the fixing plate 100 on the door frame, tilt the fixing plate 200, and the upper baffle 202 enters from the gap into the area between the upper baffle 101 and the lower baffle 102 until the upper baffle 202 abuts against the side wall of the fixing plate 100. Move the fixing plate 200 upward and rotate the fixing plate 200 downward until the end of the adjustment wire 105 abuts against the fixing plate 200. At this time, the lower baffle 203 completely enters from the gap into the area between the upper baffle 101 and the lower baffle 102, and lower the fixing plate 200 vertically downward until the lower baffle 203 falls on the top surface of the lower baffle 102.

[0136] The elastic ratchet block 113 on the adjusting moving block 108 is disengaged from the corresponding ratchet groove, and the moving block 108 is moved horizontally to drive the adjusting wire 105 to rotate to achieve the extension of the end. At the same time, the moving block 2 109 is moved horizontally in the opposite direction relative to the moving block 108 along the sliding groove 110 via the elastic ratchet block 113, and the end of the adjusting wire 105 is matched with the limiting blind hole;

[0137] Step 5: Separate the fixing plate 1 100 and the fixing plate 2 200

[0138] When it is necessary to replace the single curtain body 400, the elastic ratchet block 113 on the second adjustment moving block 109 is disengaged from the corresponding ratchet groove, and the second movement moving block 109 is moved horizontally to drive the adjustment wire 105 to rotate to achieve the inward retraction of the end portion, and the movement block 108 is moved horizontally in the opposite direction relative to the second movement block 109 along the slide groove 110 via the elastic ratchet block 113, and the end portion of the adjustment wire 105 is separated from the limiting blind hole;

[0139] Lift the second fixing plate 200 until the upper baffle 202 abuts against the bottom surface of the upper baffle 101, keep the upper baffle 202 and the lower eaves 103 abutting against each other, rotate the bottom of the second fixing plate 200 upward to the side away from the first fixing plate 100, until the top of the second fixing plate 200 abuts against the outer wall of the lower eaves 103, keep the upper baffle 202 and the lower eaves 103 abutting against each other, and move the second fixing plate 200 obliquely downward;

[0140] Select the curtain body 400 to be installed and repeat step 4 to complete the replacement operation of the single curtain body 400.

[0141] When processing the curtain body 400, a curtain body processing device is used.

[0142] like Figures 15 to 21 As shown, the curtain body processing equipment includes:

[0143] The curtain body externally extending mechanism 10 comprises a curtain body externally extending frame 11, on which a curtain body externally extending roller 12 is mounted, on which a curtain body is wound, and on which an externally extending discharge motor 13 is mounted, and the output end of the externally extending discharge motor 13 drives the curtain body externally extending roller 12 to release the curtain body 401 via a reducer.

[0144] The groove planing mechanism 20 includes a support frame 21, an upper beam 22 and a lower beam 23 are arranged on the support frame 21, the area between the upper beam 22 and the lower beam 23 is the area where the curtain body passes, and groove planing frames 24 are installed on the upper beam 22 and the lower beam 23. The groove planing frame 24 is installed with two groups of groove planing tools 25 symmetrically distributed on the left and right and a motor 26 for driving the groove planing tools 25 to rotate.

[0145] The soft magnetic strip releasing mechanism 30 includes an independent mounting frame 31 located on both sides of the curtain body, on which an external discharge motor 2 32 and a side pressure roller 1 33 are mounted, and the output end of the external discharge motor 2 32 is connected to a soft magnetic strip releasing roller 34 via a reducer, and a soft magnetic strip is wound on the soft magnetic strip releasing roller 34, and the side pressure roller 1 33 presses the released soft magnetic strip tightly against the side of the curtain body, and the releasing speed of the external discharge motor 2 32 is the same as the releasing speed of the external discharge motor 13.

[0146] The edging strip outward-feeding mechanism 40 includes an external discharge motor 3 41, a side pressure roller 2 42, and an inward-turning pressure roller 43, which are located on both sides of the curtain body and installed on the mounting frame 31. The output end of the external discharge motor 3 41 is connected to the edging strip outward-feeding roller 44 via a reducer. The edging strip is wound on the edging strip outward-feeding roller 44. The side pressure roller 2 42 presses the outward-feeding edging strip against the outer side of the soft magnetic strip. The inward-turning pressure roller 43 turns the edging strip inward and cooperates with the groove on the surface of the curtain body. The outward-feeding speed of the external discharge motor 3 41 is the same as the outward-feeding speed of the external discharge motor 1 13.

[0147] The edging-curtain body hot melt mechanism 50 includes an upper molding plate 51 and a lower molding plate 52, each of which has a cylinder separately arranged on the side facing away from the curtain body, and an outer convex hot melt body 56 is arranged on the opposite side of the upper molding plate 51 and the lower molding plate 52, and the outer convex hot melt body 56 forms a hot melt groove 1 and a hot melt groove 2 on the edging strip, respectively, and the hot melt groove 1 and the hot melt groove 2 are staggered along the length direction of the curtain body.

[0148] The external discharge motor 13 releases the curtain body with the curtain body release roller 12 at a certain speed, and the released curtain body enters the groove planing position, and the groove planing tool 25 is rotated at high speed by the motor 26 to realize the groove planing operation of the curtain body. After groove planing, a matching groove is formed on the curtain body, and the depth of the matching groove is 1.5-3mm, and the side of the matching groove away from the middle of the curtain body is the matching surface; the curtain body enters the soft magnetic strip assembly area, and the external discharge motor 2 32 drives the soft magnetic strip release roller 34 to release the soft magnetic strip through the reducer, and the released soft magnetic strip is tightly attached to the side of the curtain body under the action of the side pressure roller 1 33; the curtain body enters the edge strip assembly area, and the external discharge motor 3 41 drives the edge strip release roller 44 to release the edge strip through the reducer, and the released edge strip is tightly attached to the outside of the soft magnetic strip under the action of the side pressure roller 2 42, and the edge part is at Under the action of the inward-turned pressure roller 43, the edging strip is installed in conjunction with the matching groove, and a matching body is provided on the side of the edging part opposite to the curtain body, and the side of the matching body opposite to the curtain body gradually approaches the side of the curtain body; the edging-curtain body combination enters the hot melt assembly area, and the upper forming plate 51 and the lower forming plate 52 move close to the curtain body under the action of the cylinders equipped with them, and the edging strip and the curtain body are thermally melted by the outwardly convex hot melt body 56 thereon (with a heating wire embedded inside and an external power supply), and after hot melting, hot melting groove one and hot melting groove two are respectively formed on the edging strip, and the hot melting groove one and the hot melting groove two are staggered along the length direction of the curtain body, which can effectively release the fusion stress, and the hot melting groove one and the hot melting groove two both span the matching groove, and the bottom surface of the groove is located in the coverage area of ​​the matching groove in the thickness direction of the curtain body.

[0149] The grooving mechanism 20 further includes two sets of leveling rollers 60 independently arranged on the front and rear sides of the grooving frame 24. The two sets of leveling rollers 60 are used to horizontally transport the curtain body, which is beneficial to ensure the consistency of the grooving depth.

[0150] The groove planing mechanism 20 also includes a lifting cylinder 27, one end of the lifting cylinder 27 is rotatably mounted on the groove planing frame 24, and the other end is rotatably mounted on the corresponding crossbeam. The lifting cylinder 27 is extended and retracted to drive the groove planing tool 25 to adjust its height, thereby achieving adjustment of the groove planing depth.

[0151] The angle between the axis of the rotating shaft of the slotting tool 25 and the horizontal plane is 1-5°, and the rotating shaft is set diagonally downward along the side close to the middle of the curtain body. Since the curtain body is made of PVC and has a certain toughness, if the vertical slotting operation is directly performed on the surface of the curtain body, the top of the matching surface will move outward, which will lead to the problem of easy falling off after the subsequent matching and installation of the edging strip, and the problem of surface wrinkle processing cannot be solved. The redundant slotting is used to achieve the inward movement of the top of the matching surface, forming a hooking form with the edging strip, thereby ensuring that it will not fall off after matching.

[0152] However, the oblique setting during the planing process will aggravate the deformation of the mating surface away from the middle area of ​​the curtain body and move it outward and upward, so that the mating surface is located on the inner side of the set area after processing, making the inclination transition of the mating surface smaller, which is not conducive to effective matching and assembly, and is easy to cause the problem of eversion after matching. Therefore, a blowing plate 28 is installed on the planing frame 24, and a plurality of blowing ports are arranged on the blowing plate 28 toward the bottom of the planing groove. The blowing plate 28 is externally connected to an air supply pump. After the air supply pump is stabilized, it blows the sharp corner part of the outer side of the originally everted mating surface inward, effectively reducing the eversion amount and effectively alleviating the problem of the eversion transition of the mating surface. In this way, the strength of the top of the mating surface can be guaranteed, and the eversion problem is not easy to occur.

[0153] A negative pressure collection nozzle 29 is installed on the planing frame 24 to collect and process debris near the slot opening.

[0154] Among them, the inward-turned pressure roller 43 is horizontally arranged and one end close to the middle of the curtain body is arranged obliquely backward. The inward-turned pressure roller 43 includes an inner core 431 and an outer tube 432. The outer tube 432 has a plurality of groups of negative pressure air holes 433 evenly distributed circumferentially. The inner core 431 is fixedly mounted on the mounting frame 31 and is hollow inside. A negative pressure port 434 communicating with the interior is arranged on the front lower side of the inner core 431. The negative pressure port 434 is used to communicate with the negative pressure air holes 433 in the corresponding area on the outer tube 432. One end of the inner core 431 is connected to an air pump through a pipeline, and the other end is a closed end. Through the inner core 431, an external vacuum pump can be connected through the negative pressure port 434 and the negative pressure air hole 433 to adsorb the edging strip on the front lower side. Since the outer tube 432 is arranged obliquely to the rear side, the edging part can be transported inward and pulled toward the middle of the curtain body until it enters the matching groove. After the elasticity of the edging part is restored, the matching gap can be eliminated and the matching quality can be effectively ensured.

[0155] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The replacement may be a replacement of a part of the structure, device, method step, or a complete technical solution. Any equivalent replacement or change according to the technical solution and the inventive concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A thermal insulation curtain, characterized in that: include: A fixing plate 1 is provided with a mounting hole, a bolt is installed in the mounting hole and fixed to the door frame, an upper stop bar and a lower stop bar are integrally provided on the front side of the fixing plate 1, a lower eave body extending downward is provided at one end of the upper stop bar away from the fixing plate 1, an upper eave body extending upward is provided at one end of the lower stop bar away from the fixing plate 1, a gap is reserved between the upper eave body and the lower eave body, and the gap is used for fixing plate 2 to be installed on the fixing plate 1; A second fixing plate, on which a horizontal plate extending backward is arranged, and the top of the horizontal plate is integrally connected with an upper baffle extending upward and a lower baffle extending downward, and a pressure strip is installed on the second fixing plate by bolts, and the pressure strip is used to fix the curtain body on the second fixing plate; The curtain body includes a curtain body, soft magnetic strips are tightly attached to both sides of the curtain body, and edging strips are arranged on the outer sides of the soft magnetic strips. The edging strips wrap the soft magnetic strips and fix them on the sides of the curtain body. The curtain body and the edging strips are fused together, and a hot melt groove 1 located on the front side and a hot melt groove 2 located on the back side are arranged on the surface of the fusion area. The hot melt groove 1 and the hot melt groove 2 are staggered along the length direction of the curtain body.

2. A thermal insulation curtain according to claim 1, characterized in that: The second fixing plate is provided with a limiting boss 1 corresponding to the position of the first hot-melt groove, and the pressure strip is provided with a limiting boss 2 corresponding to the position of the second hot-melt groove.

3. The thermal insulation curtain according to claim 1, characterized in that: The surface of the curtain body is provided with a planing groove structure, the side of the planing groove structure away from the middle of the curtain body is a matching surface, the matching surface gradually moves away from the middle of the curtain body along the depth direction, and the edge strip is provided with a matching body adapted to the planing groove structure; The angle between the matching surface and the side wall of the curtain body is 1-5°.

4. The thermal insulation curtain according to claim 1, characterized in that: An oblique support body is integrally arranged between the fixing plate 1 and the bottom of the lower stop bar.

5. The thermal insulation curtain according to claim 4, characterized in that: The diagonal support body is connected with an adjusting wire through a thread. After the second fixing plate is installed in the first fixing plate, the adjusting wire abuts against the second fixing plate.

6. The thermal insulation curtain according to claim 5, characterized in that: The inclined support is provided with a slide groove, in which a moving block 1 and a moving block 2 are installed. The moving block 1 is connected to the adjusting wire via a steel wire 1, and the moving block 2 is connected to the adjusting wire via a steel wire 2. Both the steel wire 1 and the steel wire 2 are wound around the adjusting wire and the winding directions are opposite.

7. The thermal insulation curtain according to claim 5, characterized in that: Two groups of ratchet grooves are arranged at the side openings at the bottom of the slide groove, and the restriction directions of the two groups of ratchet grooves are opposite. Both the moving block 1 and the moving block 2 are provided with elastic ratchet blocks, and the two groups of elastic ratchet blocks are respectively adapted to the corresponding ratchet grooves.

8. The thermal insulation curtain according to claim 5, characterized in that: The second fixing plate is provided with a limiting blind hole, the limiting blind hole corresponds to the position of the adjusting wire, and the depth is 1-4 mm.

9. The thermal insulation curtain according to claim 4, characterized in that: The opposite side of the upper eaves body is integrally connected with an outer boss and the top of the outer boss is provided with an upwardly inclined guide slope, and the distance between the plane where the guide slope is located and the plane where the plane is parallel to the guide slope and passes through the bottom surface of the lower eaves body and close to the second side of the fixing plate is greater than or equal to the thickness of the upper baffle body or the lower baffle body; The sum of the thickness of the outer boss and the thickness of the upper eaves body is equal to the distance between the lower baffle body and the second fixing plate.

10. A production process for a thermal insulation curtain, characterized in that: include: Processing: Step 1: Fixing plate 1, fixing plate 2, layering processing The aluminum billet is heated at high temperature, and the aluminum billet is deformed and extruded from a forming opening in a die under the pressure and speed set by an extruder, so as to obtain a fixing plate 1, a fixing plate 2 and a pressure strip; A mounting hole, a slide groove, a ratchet groove, and an internal thread hole are provided on the fixing plate 1, an adjusting wire is installed in the internal thread hole, a steel wire 1 and a steel wire 2 are wound around the adjusting wire, a moving block 1 and a moving block 2 are installed in the slide groove, the moving block 1 is connected to the steel wire 1, and the moving block 2 is connected to the steel wire 2; A threaded blind hole and a limiting blind hole are opened on the second fixing plate, the limiting blind hole and the adjusting thread are located in corresponding positions, and a limiting boss 1 is obtained by extrusion molding; A through hole is opened on the pressure strip, the position of the through hole corresponds to the position of the threaded blind hole, and a second limiting boss is obtained by extrusion molding; Step 2: Curtain body processing 21) Curtain body is extended The curtain body outer roller is installed on the output end of the external discharge motor 1, and the curtain body outer roller is driven by the reducer to release the curtain body; 22) Grooving the surface of the curtain body The lifting cylinder drives the planing frame to deflect toward the side close to the curtain body until the planing tool moves down to the required planing depth. The motor drives the planing tool to rotate at high speed. The curtain body is horizontally transported by two sets of level rollers and planed by the planing tool. 23) Soft magnetic strip external The soft magnetic strip external roller is installed on the mounting frame in advance and connected to the output end of the external discharge motor 2. The external discharge speed of the external discharge motor 3 is the same as that of the external discharge motor 1. The side pressure roller 1 presses the external soft magnetic strip against the side of the curtain body. 24) The edge strip is placed outside The edge strip outward roller is installed on the mounting frame in advance and connected to the output end of the external discharge motor 3. The outward speed of the external discharge motor 3 is the same as that of the external discharge motor 1. The side pressure roller 2 makes the outward edge strip contact the outside of the soft magnetic strip. The inward pressure roller turns the edge strip inward and matches it with the notch on the surface of the curtain body. The negative pressure pores of the outer cylinder absorb the edge strip and lift it to the planing groove area on the curtain body, and match it in the planing groove. 25) Edge binding-curtain body fusion The upper forming plate and the lower forming plate are respectively moved close to the curtain body under the action of the cylinders independently equipped therewith, and the externally convex hot melt body performs hot melting operation on the edge strip and the curtain body, and hot melting grooves 1 and 2 are respectively formed on the edge strip after hot melting, and the hot melting grooves 1 and 2 are staggeredly distributed along the length direction of the curtain body; 26) Cut to length Cut the hot-melted edge strips and curtain body to the set length; 27) Drilling and counterweight installation Drill a hole at one end of the curtain body and install a counterweight at the other end; Step 3: Assemble the curtain body, pressure strips and fixings The second fixing plate and the pressure strip are respectively placed on the rear and front sides of the curtain body, and the limiting boss 1 is matched with the hot melt groove 1, and the limiting boss 2 is matched with the hot melt groove 2, and the bolts penetrate the pressure strip and are threadedly connected to the threaded blind hole to press and fix the curtain body; Installation process: Step 4: Assemble the fixing plate 1 and fixing plate 2 Fix the fixing plate 1 on the door frame, tilt the fixing plate 2, and the upper baffle body enters the area between the upper baffle bar and the lower baffle bar from the gap until the upper baffle body abuts against one side wall of the fixing plate. Move the fixing plate 2 upward and rotate the fixing plate 2 downward until the end of the adjustment wire abuts against the fixing plate 2. At this time, the lower baffle body completely enters the area between the upper baffle bar and the lower baffle bar from the gap, and lower the fixing plate 2 vertically downward until the lower baffle body falls on the top surface of the lower baffle bar. The elastic ratchet block on the adjusting moving block 1 is disengaged from the corresponding ratchet groove, and the moving block 1 is moved horizontally to drive the adjusting wire to rotate to achieve the extension of the end. At the same time, the moving block 2 is moved horizontally in the opposite direction relative to the moving block 1 along the sliding groove through the elastic ratchet block, so that the end of the adjusting wire is matched with the limiting blind hole; Step 5: Separate the fixing plate 1 and fixing plate 2 When it is necessary to replace a single curtain body, the elastic ratchet block on the second adjustment moving block is disengaged from the corresponding ratchet groove, and the second moving block is moved horizontally to drive the adjusting wire to rotate to achieve the inward retraction of the end. At the same time, the first moving block is moved horizontally in the opposite direction relative to the second moving block along the sliding groove through the elastic ratchet block, and the end of the adjusting wire is separated from the limiting blind hole; Lift the second fixing plate until the upper baffle body abuts against the bottom surface of the upper baffle bar, keep the upper baffle body and the lower eaves body abutting against each other, rotate the bottom of the second fixing plate upward to the side away from the first fixing plate, until the top of the second fixing plate abuts against the outer wall of the lower eaves body, keep the upper baffle body and the lower eaves body abutting against each other and move the second fixing plate obliquely downward; Select the curtain body to be installed and repeat step 4 to complete the replacement of the single curtain body.

Citation Information

Patent Citations

  • Magnetic door curtain

    CN218882106U

Cited By

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