Limo plate compounding equipment

The RV panels are laminated by vacuuming and applying negative pressure, which solves the problems of high equipment cost and bonding quality and achieves efficient and uniform panel production.

CN223420268UActive Publication Date: 2025-10-10GAOBEIDIAN LONGCHENG AUTOMOBILE MFG CO LTD
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Patent Information

Application Number
CN202422314024.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-23
Publication Date
2025-10-10
Estimated Expiration
2034-09-23

AI Technical Summary

Technical Problem

The existing RV panel production equipment is expensive, especially for large-area composite panels, where the equipment investment cost is even higher and the bonding quality is difficult to guarantee.

Method used

The composite board is clamped by vacuuming and negative pressure, and the vacuum pump and vacuum tank system are used to achieve uniform pressurization through the sealed chamber and air guide groove to eliminate bubbles and improve the bonding quality.

Benefits of technology

It reduces the equipment investment cost, realizes efficient and uniform bonding of large-area panels, and improves production efficiency and bonding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a touring car panel compound equipment, including compound platform, vacuum tank and vacuum pump, the compound platform is horizontally provided with the sealed chamber that accommodates the touring car panel that needs to compound, the sealed chamber is the chamber that the top can be compressed, the sealed chamber is communicated with the vacuum tank, the vacuum tank is communicated with the vacuum pump, and the vacuum pump is communicated with the vacuum tank. And the vacuum tank is communicated with an extraction opening of the vacuum pump. According to the recreational vehicle plate compounding equipment, a composite plate is clamped in a vacuumizing and negative pressure pressurizing mode, the equipment investment cost is reduced, and large-area plate production is facilitated.
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Description

Technical Field

[0001] The utility model relates to the technical field of recreational vehicles, in particular to a composite device for recreational vehicle panels. Background Art

[0002] A motorhome, also known as a recreational vehicle (RV), is a special type of passenger vehicle that combines the functions of a home and a vehicle. It combines the functionality of a house with the mobility of a vehicle, integrating clothing, food, shelter, and transportation into a fashionable lifestyle. RV interiors are typically equipped with basic home amenities such as a television, refrigerator, air conditioning, as well as a bed, sofa, dining table and chairs, and bathroom facilities to meet traveler needs.

[0003] RV wall panels mostly utilize a sandwich composite structure, similar to a Western sandwich, composed of multiple layers of materials. Specifically, wall panels typically consist of an exterior finish, a skeleton and insulation layer, an internal structural layer, and an interior trim layer. This structure not only enhances the overall strength and stability of the wall panels, but also improves their thermal insulation, waterproofing, and moisture-proofing properties. The production of these panels often requires adhesive bonding and pressure-assisted flattening. Currently, large presses are often used for composite bonding. Larger composite panels require larger presses, increasing equipment costs.

[0004] Therefore, it is necessary to develop a RV sheet material composite equipment to address the above defects. Utility Model Content

[0005] The purpose of the utility model is to provide a RV board composite equipment, which uses a vacuum negative pressure pressurization method to clamp the composite board, reducing the equipment investment cost and facilitating the production of large-area boards.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The utility model relates to a RV sheet material composite device, comprising a composite platform, a vacuum tank and a vacuum pump. A sealed chamber for accommodating RV sheets to be composited is horizontally arranged on the composite platform. The sealed chamber is a chamber with a compressible top. The sealed chamber is connected to the vacuum tank, and the vacuum tank is connected to the air suction port of the vacuum pump.

[0008] Furthermore, the composite platform includes a bracket, an outer limiting tube, an inner limiting baffle, a groove cover, a glass bottom plate, a sealing cover cloth and a pressure edge assembly; the bracket body is a welded frame and a top plate is horizontally arranged on the top, and the outer limiting tube of the entire circle is arranged on the outer edge of the top surface of the top plate; the inner limiting baffle of the entire circle is arranged on the top surface of the top plate and is equidistantly arranged on the inner side of the outer limiting tube, and the entire glass bottom plate is flatly laid on the top surface of the top plate; the four sides of the sealed chamber are closed and enclosed by the inner limiting baffle, the glass bottom plate is the bottom surface of the sealed chamber, the sealing cover cloth covers the top surface of the sealed chamber, and the pressure edge assembly completes the compression and sealing of the sealing cover cloth around; there is an air guide groove between the inner limiting baffle and the outer limiting tube; the air guide groove is connected to the exhaust joint, and the exhaust joint is connected to the vacuum tank through the exhaust pipe; the groove cover is buckled on the top of the air guide groove, and a plurality of exhaust holes are equidistantly provided on the inner side wall of the groove cover and the inner limiting baffle.

[0009] Furthermore, the edge pressing assembly includes a pressing bar and a G-type clamp, a rubber pad is provided on the top of the outer limiting tube, the edge of the sealing cover cloth is stacked on the rubber pad, and multiple sections of pressing bars are arranged along the outer limiting tube and stacked on the edge of the sealing cover cloth; the G-type clamp is clamped between the top surface of the pressing bar and the bottom surface of the top plate, and multiple G-type clamps are arranged at equal intervals on the periphery of the composite platform.

[0010] Furthermore, a rubber layer is bonded to the bottom surface of the pressure bar, and the rubber layer is pressed tightly against the edge of the sealing cover cloth.

[0011] Furthermore, a vacuum pressure gauge is connected to the side wall of the exhaust pipe through a branch pipe.

[0012] Furthermore, a stop valve is connected in series on the air extraction pipe, an exhaust pipe connected to the air guide groove is installed on the top plate, and a stop valve is installed on the exhaust pipe.

[0013] Furthermore, the slot cover is specifically made of C-shaped steel, the C-shaped steel is arranged in the air guide slot with its opening facing downward, and a second air extraction hole is opened on the web of the C-shaped steel.

[0014] Compared with the prior art, the beneficial technical effects of the present invention are:

[0015] This practical RV sheet material composite equipment places RV sheets in a sealed chamber, tightens the top wall of the sealed chamber with negative pressure, and simultaneously applies pressure to a large area of ​​the RV sheets to be bonded and composited. The pressure is uniform and consistent, and the negative pressure can eliminate bubbles in the glue and interlayer, improving the bonding quality. A vacuum tank is connected in series between the sealed chamber and the vacuum pump, which increases the vacuum pumping speed, improves production efficiency, and makes the negative pressure application more stable. This utility model RV sheet material composite equipment utilizes vacuum pumping and negative pressure to clamp the composite sheets, reducing equipment investment costs and facilitating the production of large-area sheets.

[0016] Furthermore, the glass bottom wall of the sealed chamber ensures smoothness while also utilizing the smooth surface of tempered glass to facilitate cleaning of any glue flow marks. An air guide groove, arranged around the entire perimeter of the sealed chamber and connected to the sealed chamber via an exhaust port, allows for vacuuming all around the chamber, ensuring uniform pressure on the sealing drape under negative pressure. A groove cover, buckled onto the top of the air guide groove, supports and seals the top, preventing the sealing drape from being pressed into the groove. Using a G-type clamp to pressurize the edges of the sealing drape against the pressure bar allows for flexible control of the clamping point and pressure, preventing localized air leaks. The rubber layer bonded to the rubber pad and the bottom of the pressure bar ensures a sufficient seal around the edges of the sealing drape over a long distance. A vacuum pressure gauge, installed at the base of the exhaust pipe, monitors the vacuum level within the sealed chamber and controls process parameters. A shutoff valve installed on the exhaust pipe allows for easy removal of the RV panels after the lamination process is complete. By opening the second exhaust hole on the top of the tank cover, the air in the space above the tank cover can be extracted and discharged, avoiding the formation of air islands and affecting the vacuum degree of the sealed chamber during normal pressurization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of the RV panel composite equipment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the composite platform of the present invention when the sealing cover is removed;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the AA part;

[0021] Figure 4 for Figure 3 Schematic diagram of the structure during the production of RV panels.

[0022] Explanation of the accompanying reference numerals: 1. Bracket; 101. Top plate; 102. Exhaust joint; 103. Exhaust pipe; 2. External limit tube; 201. Rubber pad; 3. Internal limit baffle; 4. Slot cover; 401. Top exhaust hole; 5. Main exhaust hole; 6. Glass plate; 7. Pressure bar; 8. G-type clamp; 9. Exhaust pipe; 10. Vacuum tank; 11. Vacuum pump; 12. Pressure gauge; 13. Sealing cover cloth; 14. RV panel. DETAILED DESCRIPTION

[0023] The core of the utility model is to provide a RV panel composite equipment, which uses vacuum negative pressure to clamp the composite panels, reducing the equipment investment cost and facilitating the production of large-area panels.

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] With reference to the accompanying drawings, Figure 1 This is a schematic diagram of the structure of the RV panel composite equipment of the utility model; Figure 2 This is a schematic diagram of the top view of the composite platform in the utility model; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the AA part; Figure 4 for Figure 3 Schematic diagram of the structure during the production of RV panels.

[0027] In one embodiment, Figures 1 to 4 As shown, the RV sheet material laminating apparatus of the present invention includes a laminating platform, a vacuum tank 10, and a vacuum pump 11. A sealed chamber is horizontally disposed on the laminating platform to accommodate the RV sheet material 14 to be laminated. The RV sheet material 14 is placed flat within the sealed chamber. The sealed chamber is a chamber with a compressible top and is connected to the vacuum tank 10, which is in turn connected to the vacuum pump 11's exhaust port. In one embodiment, the vacuum tank 10 has a capacity of 1 cubic meter.

[0028] By placing the RV sheet material 14 in the sealed chamber, negative pressure tightens the top wall of the sealed chamber, and the RV sheet material 14 that needs to be bonded and composited is simultaneously pressurized over a large area, with uniform pressure. At the same time, the negative pressure can eliminate bubbles in the glue and the interlayer, improving the bonding quality. By connecting the vacuum tank 10 in series between the sealed chamber and the vacuum pump 11, the vacuum tank 10 increases the vacuuming speed, improves production efficiency, and makes the negative pressure application more stable. The utility model RV sheet material composite equipment uses vacuuming and negative pressure to clamp the composite sheet material, reducing equipment investment costs and facilitating the production of large-area sheets.

[0029] In a specific embodiment of the present invention, Figures 1 to 3 As shown, the composite platform includes a bracket 1, an outer limiting tube 2, an inner limiting baffle 3, a groove cover 4, a glass bottom plate 6, a sealing cover cloth 13 and a pressure edge assembly. The main body of the bracket 1 is a welded frame and a top plate 101 is horizontally arranged on the top. The outer limiting tube 2 of the entire circle is arranged on the outer edge of the top surface of the top plate 101. The bottom of the legs of the bracket 1 are all provided with support feet that can be adjusted in height. The inner limiting baffle 3 of the entire circle is arranged on the top surface of the top plate 101 and is equidistantly arranged on the inner side of the outer limiting tube 2. A whole piece of glass bottom plate 6 is laid flat on the top surface of the top plate 101, that is, the glass bottom plate 6 is a whole piece of tempered glass. Of course, if the area of ​​the sealed chamber is large, multiple pieces of tempered glass can also be used to be pieced together, and the joints are filled with glue and smoothed. The four sides of the sealed chamber are enclosed by the inner limiting baffle 3, and the glass bottom plate 6 is the bottom surface of the sealed chamber. The sealing cover cloth 13 covers the top surface of the sealed chamber, and the pressure edge assembly completes the compression and sealing around the sealing cover cloth 13. Between the inner limit baffle 3 and the outer limit tube 2 is an air guide groove, which surrounds the outside of the sealed chamber. This groove connects to an air extraction connector 102, which in turn connects to a vacuum tank 10 via an air extraction pipe 9. A groove cover 4 is fastened to the top of the air guide groove. Multiple air extraction holes 5 are evenly spaced on the inner sidewall of the groove cover 4 and the inner limit baffle 3.

[0030] Specifically, if Figure 1 and Figure 4 As shown, the sealing cover cloth 13 is made of a soft rubber plate to isolate the sealed chamber and block the air. The outer limiting tube 2 is made of a square tube.

[0031] By setting the bottom wall of the sealed chamber as a glass bottom plate 6, on one hand, the flatness is ensured, and on the other hand, the smooth surface characteristic of the tempered glass is utilized to facilitate the cleaning of the traces of the convection glue; by setting the air guide groove around the periphery of the sealed chamber, the air guide groove is communicated with the sealed chamber through the air extraction hole 5, the sealed chamber can be vacuumized around the periphery, so that the sealing cover cloth 13 is uniformly pressurized under the negative pressure. By buckling the groove cover 4 on the top of the air guide groove, the top of the air guide groove can be supported and closed, so as to avoid that the sealing cover cloth 13 is pressed into the air guide groove.

[0032] Specifically, as shown in Figure 1 and Figure 4 , the edge of the sealing cover cloth 13 is overlapped on the rubber pad 201, and the plurality of pressure bars 7 are arranged along the outer limiting tube 2 and overlapped on the edge of the sealing cover cloth 13. The working end of the G-shaped clamp 8 is clamped between the top surface of the pressure bar 7 and the bottom surface of the top plate 101, and a plurality of G-shaped clamps 8 are arranged at equal intervals around the composite platform.

[0033] Specifically, as shown in Figure 4 , the bottom surface of the pressure bar 7 is bonded with a rubber layer, and the rubber layer is pressed against the edge of the sealing cover cloth 13.

[0034] Obviously, a magnetic attraction structure can also be arranged between the pressure bar 7 and the outer limiting tube 2, and the high-strength magnet is used to complete the pressing of the edge of the sealing cover cloth 13 by the pressure bar 7. Similar replacement deformation modes also fall within the protection scope of the utility model.

[0035] By using the G-shaped clamp 8 to press and seal the edge of the sealing cover cloth 13, the clamping point and the pressing degree can be flexibly controlled, and the local air leakage is avoided; by bonding the rubber layer on the bottom surface of the pressure bar 7 and the rubber pad 201, the edge of the sealing cover cloth 13 can be fully sealed over a long distance.

[0036] In a specific embodiment of the utility model, as shown in Figure 1 , the side wall of the air extraction pipe 9 is connected with a vacuum pressure gauge 12 through a branch pipe. The vacuum pressure gauge 12 is installed at one end close to the top plate 101.

[0037] Specifically, as shown in Figure 1 and Figure 2 , a stop valve is connected in series on the air extraction pipe 9, and an exhaust pipe 103 communicating with the air guide groove is installed on the top plate 101, and a stop valve is installed on the exhaust pipe 103.

[0038] By adding a vacuum pressure gauge 12 at the root of the exhaust pipe 9, the vacuum degree of the sealed chamber can be monitored and the process parameters can be controlled; by installing a stop valve on the exhaust pipe 103, the stop valve can be opened after the composite process is completed to eliminate the vacuum and facilitate the removal of the RV board 14.

[0039] In a specific embodiment of the present invention, Figure 3 and Figure 4 As shown, the trough cover 4 is specifically made of C-shaped steel, with the opening of the C-shaped steel facing downward and arranged in the air guide trough. A second air extraction hole 401 is centrally opened on the web of the top of the C-shaped steel. The number of the second air extraction holes 401 is multiple and is evenly spaced along the length of the trough cover 4.

[0040] By opening the second exhaust hole 401 on the top of the tank cover 4, the air in the space above the tank cover 4 can be extracted and discharged, avoiding the formation of air islands that affect the vacuum degree of the sealed chamber during normal pressurization.

[0041] The working process of the RV sheet composite equipment of the present invention is as follows: the various layers of the RV sheet 14, such as the fiberglass layer, the insulation layer, the interior surface layer, etc., are stacked one by one on the glass bottom plate 6, and the adhesive is brushed on the bonding surface. The application must be even and there must be no glue leakage. The entire sealed chamber is basically filled with the RV sheets 14 that need to be composited. The sealing cover cloth 13 is covered on the top surface of the sealed chamber, and the edge of the sealing cover cloth 13 is overlapped on the rubber pad 201. The pressure bars 7 are placed in a circle, and the G-type clamps 8 are installed at intervals. The G-type clamps 8 are clamped one by one so that the pressure bars 7 press the sealing cover cloth 13 on the rubber pad 201 to complete the sealing of the sealed chamber. Close the stop valve on the exhaust pipe 103, start the vacuum pump 11, and the vacuum pump 11 evacuates the vacuum tank 10. After the set vacuum degree is reached, the vacuum pump 11 stops. Open the stop valve on the exhaust pipe 9, and evacuate the entire sealed chamber through the exhaust pipe 9. The air in the sealed chamber enters the air guide groove through the exhaust hole 5, and the air guide groove is then extracted to the exhaust pipe 9 and returns to the vacuum tank 10. Negative pressure enters the sealed chamber, and the sealing cover cloth 13 pressurizes the RV board 14 from top to bottom. Observe the reading of the vacuum pressure gauge 12 to control the vacuum degree of the sealed chamber. When the vacuum degree is insufficient, start the vacuum pump 11 to continue to pump negative pressure. The pressure holding time is 8 hours, and the RV board 14 is cured. Close the stop valve on the exhaust pipe 9, open the stop valve on the exhaust pipe 103 to release the vacuum, remove the G-type clamp 8 and the pressure bar 7, lift the sealing cover cloth 13, and remove the composite RV board 14. Pay attention to cleaning the glue flow on the glass bottom plate 6 in time to avoid causing an uneven bottom surface that affects the next board composite.

[0042] In summary, the RV sheet material composite equipment of the present invention places RV sheet material 14 within a sealed chamber, tightens the sealed chamber top wall with negative pressure, and simultaneously applies pressure to the RV sheet material 14 to be bonded and composited over a large area, achieving uniform pressure. The negative pressure also eliminates bubbles in the glue and interlayer, improving bonding quality. By connecting a vacuum tank 10 in series between the sealed chamber and the vacuum pump 11, the vacuum tank 10 increases vacuuming speed, improves production efficiency, and provides more stable negative pressure application. The RV sheet material composite equipment of the present invention utilizes vacuuming and negative pressure to clamp the composite sheet material, reducing equipment investment costs and facilitating the production of large-area sheet materials. Furthermore, by providing the bottom wall of the sealed chamber with a glass bottom plate 6, flatness is ensured while utilizing the smooth surface of tempered glass to facilitate the cleaning of glue flow marks. By providing an air guide groove around the entire periphery of the sealed chamber, which is connected to the sealed chamber via an air extraction hole 5, the sealed chamber can be vacuumed all around, ensuring uniform and consistent pressure on the sealing cover cloth 13 under negative pressure. By buckling the slot cover 4 on the top of the air guide slot, the top of the air guide slot can be supported and sealed to prevent the sealing cover cloth 13 from being pressed into the air guide slot. By using the G-type clamp 8 to pressurize the pressure bar 7 to seal the edge of the sealing cover cloth 13, the clamping point and the pressure strength can be flexibly controlled to avoid local air leakage; by bonding the rubber layer between the rubber pad 201 and the bottom surface of the pressure bar 7, the edge of the sealing cover cloth 13 can be fully sealed over a long distance. By adding a vacuum pressure gauge 12 at the root of the exhaust pipe 9, the vacuum degree of the sealed chamber can be monitored and the process parameters can be controlled; by installing a stop valve on the exhaust pipe 103, the stop valve can be opened after the composite process is completed to eliminate the vacuum and facilitate the removal of the RV board 14. By opening the exhaust hole 2 401 at the top of the slot cover 4, the air in the space above the slot cover 4 can be extracted and discharged to avoid the formation of air islands that affect the vacuum degree of the sealed chamber during normal pressurization.

[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A RV sheet composite equipment, characterized in that: The invention comprises a composite platform, a vacuum tank (10) and a vacuum pump (11); a sealed chamber for accommodating a recreational vehicle plate (14) to be composited is horizontally arranged on the composite platform; the sealed chamber is a chamber with a top capable of being compressed; the sealed chamber is connected to the vacuum tank (10); and the vacuum tank (10) is connected to an air extraction port of the vacuum pump (11); The composite platform comprises a bracket (1), an outer limiting tube (2), an inner limiting baffle (3), a groove cover (4), a glass bottom plate (6), a sealing cover cloth (13) and a pressure edge assembly; the main body of the bracket (1) is a welded frame and a top plate (101) is horizontally arranged on the top, and a full circle of the outer limiting tube (2) is arranged on the outer edge of the top surface of the top plate (101); a full circle of the inner limiting baffle (3) is arranged on the top surface of the top plate (101) and is equidistantly arranged on the inner side of the outer limiting tube (2), and a whole piece of the glass bottom plate (6) is laid flat on the top surface of the top plate (101); the four sides of the sealed chamber are surrounded by the inner limiting baffles (13). The plate (3) is closed and enclosed, the glass bottom plate (6) is the bottom surface of the sealed chamber, the sealing cover cloth (13) covers the top surface of the sealed chamber, and the edge pressing assembly completes the compression and sealing around the sealing cover cloth (13); an air guide groove is provided between the inner limit baffle (3) and the outer limit tube (2); the air guide groove is connected to the exhaust joint (102), and the exhaust joint (102) is connected to the vacuum tank (10) through the exhaust pipe (9); the groove cover (4) is buckled on the top of the air guide groove, and a plurality of exhaust holes (5) are provided at equal intervals on the inner side wall of the groove cover (4) and the inner limit baffle (3).

2. The RV sheet material composite equipment according to claim 1, characterized in that: The edge pressing assembly includes a pressing bar (7) and a G-type clamp (8); a rubber pad (201) is provided on the top of the outer limiting tube (2); the edge of the sealing cover cloth (13) is stacked on the rubber pad (201); multiple sections of the pressing bar (7) are arranged along the outer limiting tube (2) and stacked on the edge of the sealing cover cloth (13); the G-type clamp (8) is clamped between the top surface of the pressing bar (7) and the bottom surface of the top plate (101); and multiple G-type clamps (8) are arranged at equal intervals on the periphery of the composite platform.

3. The RV sheet composite equipment according to claim 2, characterized in that: A rubber layer is bonded to the bottom surface of the pressure bar (7), and the rubber layer is pressed tightly against the edge of the sealing cover cloth (13).

4. The RV sheet material composite equipment according to claim 1, characterized in that: A vacuum pressure gauge (12) is connected to the side wall of the air extraction pipe (9) via a branch pipe.

5. The RV sheet material composite equipment according to claim 1, characterized in that: A stop valve is connected in series to the air extraction pipe (9), an exhaust pipe (103) communicating with the air guide groove is installed on the top plate (101), and a stop valve is installed on the exhaust pipe (103).

6. The RV sheet material composite equipment according to claim 1, characterized in that: The slot cover (4) is specifically made of C-shaped steel, the opening of the C-shaped steel is arranged downward in the air guide slot, and a second air extraction hole (401) is opened on the web of the C-shaped steel.