Air pipe sealing element

Abstract

The embodiment of the utility model provides an air pipe sealing piece. The air pipe sealing piece comprises a first sealing piece, a second sealing piece, a third sealing piece, a fourth sealing piece, a fifth sealing piece and a sixth sealing piece which are sequentially connected. The second sealing piece is bent towards the inner side of the first sealing piece and is perpendicular to the first sealing piece, the third sealing piece is bent towards the inner side of the first sealing piece and is overlapped with the second sealing piece, and the fourth sealing piece is bent towards the side away from the first sealing piece and is parallel to the first sealing piece. A first sealing groove is defined by the first sealing piece and the second sealing piece; the fifth sealing piece is bent towards the side, away from the first sealing piece, of the fourth sealing piece and is overlapped with the fourth sealing piece, the sixth sealing piece is bent towards the side, away from the first sealing piece, of the sixth sealing piece and is parallel to the third sealing piece, and a second sealing groove is defined by the sixth sealing piece, the third sealing piece and the fourth sealing piece. According to the technical scheme, the air pipe sealing performance can be effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air duct, in particular to an air duct sealing piece. BACKGROUND

[0002] The air duct is light, has a wide application area, and has good anti-seismic performance, but the material is limited, and the fireproof performance is defective. Therefore, the air duct with fireproof function made by adding fireproof material on the wall of the air duct is applied more and more widely.

[0003] In the related art, the air duct is usually spliced by a plurality of plates by using sealing pieces, wherein, as shown in the figure, Figure 1 The sealing piece 10 of the related art includes a first sealing piece 111 and a second sealing piece 112 connected perpendicularly to each other, and the splicing mode of the two adjacent plates is that: first, the outer side wall of the first plate 121 in the two adjacent plates is abutted against the inner side wall of the first sealing piece 111, and the first end of the first plate 121 is abutted against the inner side wall of the second sealing piece 112, then the first screw 131 is sequentially threaded through the first sealing piece 111 and the first plate 121 to screw the first plate 121 and the first sealing piece 111; then, the outer side wall of the second plate 122 is abutted against the inner side wall of the second sealing piece 112, and the first end of the second plate 122 is abutted against the first end of the first plate 121, and then the second screw 132 is sequentially threaded through the second sealing piece 112 and the second plate 122 to screw the second plate 122 and the second sealing piece 112. Since the joint A between the first end of the first plate 121 and the first end of the second plate 122 is in communication with the inside of the air duct, and the length of the first gap between the first sealing piece 111 and the first plate 121 is short, and the length of the second gap between the second sealing piece 112 and the second plate 122 is short, the first gas leakage channel L1 formed by the joint A and the first gap and the second gas leakage channel L2 formed by the joint A and the second gap are both short, so that the gas conveyed in the air duct is easy to leak to the outside of the air duct along the first gas leakage channel L1 and the second gas leakage channel L2, resulting in the problem of poor sealing of the air duct. CONTENT OF THE UTILITY MODEL

[0004] The air duct sealing piece provided by the embodiments of the present application can solve or alleviate one or more technical problems in the prior art.

[0005] The air duct sealing piece provided by the embodiments of the present application can solve or alleviate one or more technical problems in the prior art.

[0006] The second sealing sheet is bent towards the inner side of the first sealing sheet and is perpendicular to the first sealing sheet, the third sealing sheet is bent towards the inner side of the first sealing sheet and overlaps the second sealing sheet, and the fourth sealing sheet is bent towards the side away from the first sealing sheet and is parallel to the first sealing sheet, so as to define a first sealing groove with the first sealing sheet and the second sealing sheet.

[0007] The fifth sealing sheet is bent towards the side of the fourth sealing sheet away from the first sealing sheet and overlaps the fourth sealing sheet, and the sixth sealing sheet is bent towards the side away from the first sealing sheet and is parallel to the third sealing sheet, so as to define a second sealing groove with the third sealing sheet and the fourth sealing sheet.

[0008] In an embodiment, the first sealing groove and the second sealing groove both extend along the width direction of the respective sealing sheets, and the opening direction of the first sealing groove is the same as the length direction of the first sealing sheet, and the opening direction of the second sealing groove is the same as the length direction of the second sealing sheet, so that the opening direction of the first sealing groove is perpendicular to the opening direction of the second sealing groove.

[0009] In an embodiment, the air pipe sealing piece is integrally formed by a metal sheet, and the metal sheet is sequentially bent to form the first sealing sheet, the second sealing sheet, the third sealing sheet, the fourth sealing sheet, the fifth sealing sheet and the sixth sealing sheet connected in sequence.

[0010] In an embodiment, the length of the third sealing sheet is less than the length of the second sealing sheet, and the length of the fifth sealing sheet is less than the length of the fourth sealing sheet.

[0011] In an embodiment, the length of the first sealing sheet is greater than the length of the fourth sealing sheet.

[0012] In an embodiment, the length of the third sealing sheet is greater than the length of the sixth sealing sheet.

[0013] In an embodiment, the edge of the first sealing sheet away from the second sealing sheet is bent towards the inner side of the first sealing groove to form a first anti-skid strip.

[0014] In an embodiment, the edge of the sixth sealing sheet away from the fifth sealing sheet is bent towards the inner side of the second sealing groove to form a second anti-skid strip.

[0015] In an embodiment, the connection between the fourth sealing sheet and the fifth sealing sheet is raised towards the inner side of the first sealing groove to form a third anti-skid strip.

[0016] In an embodiment, the connection between the second sealing sheet and the third sealing sheet is raised towards the inner side of the second sealing groove to form a fourth anti-skid strip.

[0017] The embodiment of the present application adopts the technical scheme, by bending the second sealing sheet towards the inner side of the first sealing sheet and perpendicular to the first sealing sheet, bending the third sealing sheet towards the inner side of the first sealing sheet and overlapping the second sealing sheet, and bending the fourth sealing sheet towards the side away from the first sealing sheet and parallel to the first sealing sheet, a first sealing groove can be defined between the first sealing sheet, the second sealing sheet and the fourth sealing sheet, and when the first plate is arranged in the first sealing groove, the length of the first air leakage outside the air pipe at the joint between the inner side wall of the first plate and the first sealing groove can be extended, thereby improving the sealing performance of the air pipe, and the first sealing sheet and the fourth sealing sheet clamp the first plate; furthermore, by bending the fifth sealing sheet towards the side of the fourth sealing sheet away from the first sealing sheet and overlapping the fourth sealing sheet, and bending the sixth sealing sheet towards the side away from the first sealing sheet and parallel to the third sealing sheet, a second sealing groove can be defined between the third sealing sheet, the fourth sealing sheet and the sixth sealing sheet, and when the second plate is arranged in the second sealing groove, the length of the second air leakage outside the air pipe at the joint between the inner side wall of the second plate and the second sealing groove can be extended, thereby improving the sealing performance of the air pipe. Therefore, the air pipe sealing element of the present application can effectively improve the sealing performance of the air pipe, and the assembly operation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 A partial structure schematic diagram of an air pipe of a related art is shown.

[0020] Figure 2 A structure schematic diagram of an air pipe sealing element according to an embodiment of the present application is shown.

[0021] Figure 3 A cross-sectional structure schematic diagram of Figure 2 is shown.

[0022] Figure 4 An assembly schematic diagram of Figure 3 is shown. DETAILED DESCRIPTION

[0023] With reference to the drawings and the embodiments disclosed herein, it will be obvious to those skilled in the art that the embodiments described herein are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments disclosed herein, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of the present application.

[0024] Figure 2 A structural schematic diagram of a duct seal according to an embodiment of the present application is shown. Figure 3 A cross-sectional structural schematic diagram of Figure 2 is shown. Figure 4 An assembly schematic diagram of Figure 3 is shown.

[0025] As Figures 2 to 4 shown, the duct seal 20 includes a first sealing sheet 111, a second sealing sheet 112, a third sealing sheet 113, a fourth sealing sheet 114, a fifth sealing sheet 115, and a sixth sealing sheet 116 connected in sequence.

[0026] The second sealing sheet 112 is folded towards the inner side of the first sealing sheet 111 and perpendicular to the first sealing sheet 111, the third sealing sheet 113 is folded towards the inner side of the first sealing sheet 111 and overlaps the second sealing sheet 112, and the fourth sealing sheet 114 is folded towards the side away from the first sealing sheet 111 and parallel to the first sealing sheet 111, so as to define a first sealing groove 11A with the first sealing sheet 111 and the second sealing sheet 112. Exemplarily, the inner side wall of the first sealing sheet 111, the inner side wall of the second sealing sheet 112, and the inner side wall of the fourth sealing sheet 114 enclose the first sealing groove 11A. When the first plate 121 is arranged in the first sealing groove 11A, the joint A1 between the inner side wall of the first plate 121 and the edge of the fourth sealing sheet 114 away from the second sealing sheet 112 forms a first air leakage passage L1 (shown by the dashed line) with the first gap between the first plate 121 and the fourth sealing sheet 114, the second sealing sheet 112, and the first sealing sheet 111. Figure 4 Compared with the first air leakage passage L1 of the prior art, the gap between the fourth sealing sheet 114 and the first plate 121 can effectively lengthen the first air leakage passage L1, thereby improving the sealing performance of the assembled duct.

[0027] The fifth sealing sheet 115 is bent towards the side of the fourth sealing sheet 114 away from the first sealing sheet 111 (i.e. the outer side of the fourth sealing sheet 114) and overlaps with the fourth sealing sheet 114, and the sixth sealing sheet 116 is bent towards the side away from the first sealing sheet 111 and parallel to the third sealing sheet 113, so as to define the second sealing groove 11B with the third sealing sheet 113 and the fourth sealing sheet 114. Exemplarily, the outer side wall of the third sealing sheet 113, the outer side plate of the fourth sealing sheet 114 and the inner side wall of the sixth sealing sheet 116 enclose the second sealing groove 11B. When the second plate 122 is arranged in the second sealing groove 11B, the joint A2 between the inner side wall of the second plate 122 and the edge of the sixth sealing sheet 116 away from the first sealing sheet 111 forms a second air leakage passage L2 (as shown by the dashed line) with the second gap between the first plate 121 and the sixth sealing sheet 116, the fourth sealing sheet 114 and the third sealing sheet 113. Figure 4 Compared with the second air leakage passage L2 of the prior art, the gap between the sixth sealing sheet 116 and the second plate 122 can effectively lengthen the second air leakage passage L2, thereby improving the sealing performance of the assembled air duct.

[0028] The air duct formed by splicing the air duct sealing piece 20 of the present application can be assembled as follows: first, the first plate 121 is inserted into the first sealing groove 11A, so that the first end of the first plate 121 abuts against the inner side wall of the second sealing sheet 112, and the portion of the first plate 121 inserted into the first sealing groove 11A is clamped by the first sealing sheet 111 and the fourth sealing sheet 114; then, the second plate 122 is inserted into the second sealing groove 11B, so that the first end of the second plate 122 abuts against the outer side wall of the fourth sealing sheet 114, and the portion of the second plate 122 inserted into the second sealing groove 11B is clamped by the third sealing sheet 113 and the sixth sealing sheet 116; subsequently, the first screw 131 is sequentially threaded through the first sealing sheet 111, the first plate 121, the fourth sealing sheet 114 and the fifth sealing sheet 115 to screw the first plate 121 with the air duct sealing piece 20, and the second screw 132 is sequentially threaded through the second sealing sheet 112, the third sealing sheet 113, the second plate 122 and the sixth sealing sheet 116 to screw the second plate 122 with the air duct sealing piece 20, thereby achieving the sealing splicing between the first plate 121 and the second plate 122.

[0029] It should be noted that in the related art, when assembling the first plate 121 and the second plate 122, the first plate 121 is usually attached to the first sealing sheet 111 by manual operation or with the aid of external tools, and then the first screw 131 is arranged, and the second plate 122 is attached to the second sealing sheet 112 by manual operation or with the aid of external tools, and then the second screw 132 is arranged, which results in low assembly efficiency. The air pipe sealing piece 20 of the present application can clamp the first plate 121 and the second plate 122 after inserting the first plate 121 into the first sealing groove 11A and inserting the second plate 122 into the second sealing groove 11B, respectively, so that the attachment operation is not required by manual operation or external tools, which is more convenient and helps to improve the assembly efficiency.

[0030] In the above scheme, by bending the second sealing sheet 112 towards the inner side of the first sealing sheet 111 and perpendicular to the first sealing sheet 111, bending the third sealing sheet 113 towards the inner side of the first sealing sheet 111 and overlapping the second sealing sheet 112, and bending the fourth sealing sheet 114 towards the side away from the first sealing sheet 111 and parallel to the first sealing sheet 111, the first sealing groove 11A can be defined between the first sealing sheet 111, the second sealing sheet 112 and the fourth sealing sheet 114, so that when the first plate 121 is arranged in the first sealing groove 11A, the length of the joint A1 between the inner side wall of the first plate 121 and the first air leakage channel L2 outside the air pipe can be extended, thereby improving the sealing performance of the air pipe, and the first sealing sheet 111 and the fourth sealing sheet 114 clamp the first plate 121. Furthermore, by bending the fifth sealing sheet 115 towards the side of the fourth sealing sheet 114 away from the first sealing sheet 111 and overlapping the fourth sealing sheet 114, and bending the sixth sealing sheet 116 towards the side away from the first sealing sheet 111 and parallel to the third sealing sheet 113, the second sealing groove 11B can be defined between the third sealing sheet 113, the fourth sealing sheet 114 and the sixth sealing sheet 116, so that when the second plate 122 is arranged in the second sealing groove 11B, the length of the joint between the inner side wall of the second plate 122 and the second air leakage channel L2 outside the air pipe can be extended, thereby improving the sealing performance of the air pipe. Therefore, the air pipe sealing piece 20 of the present application can effectively improve the sealing performance of the air pipe and is easy to assemble.

[0031] In one embodiment, as Figures 2 to 4As shown, the first sealing groove 11A and the second sealing groove 11B both extend along the width direction D1 of the respective sealing sheet, and the opening direction of the first sealing groove 11A is the same as the length direction D2 of the first sealing sheet 111, and the opening direction of the second sealing groove 11B is the same as the length direction D3 of the second sealing sheet 112, so that the opening direction of the first sealing groove 11A and the opening direction of the second sealing groove 11B are perpendicular to each other. Such a mutually perpendicular groove type structure can improve the rigidity of the air pipe sealing piece 20, and can fix and support the air pipe, which is conducive to stabilizing the structure of the entire air pipe and improving the stability of the air pipe. In addition, since the opening direction of the first sealing groove 11A and the opening direction of the second sealing groove 11B are perpendicular to each other, the air pipe sealing piece 20 of the present application is used to splice the first plate 121 and the second plate 122, so that the first plate 121 and the second plate 122 are perpendicular to each other.

[0032] In an embodiment, as shown in Figures 2 to 4 The air pipe sealing piece 20 is integrally formed from a metal sheet, and the metal sheet is sequentially bent to form the first sealing sheet 111, the second sealing sheet 112, the third sealing sheet 113, the fourth sealing sheet 114, the fifth sealing sheet 115 and the sixth sealing sheet 116 connected in sequence. Based on this, the preparation process of the air pipe sealing piece 20 can be simplified, and the production cost can be reduced.

[0033] In an embodiment, as shown in Figures 2 to 4 The length of the third sealing sheet 113 is less than the length of the second sealing sheet 112, and the length of the fifth sealing sheet 115 is less than the length of the fourth sealing sheet 114. By setting the length of the third sealing sheet 113 to be less than the length of the second sealing sheet 112, the part of the second sealing sheet 112 adjacent to the first sealing sheet 111 is exposed, and space is reserved for the first sealing groove 11A; by setting the length of the fifth sealing sheet 115 to be less than the length of the fourth sealing sheet 114, the part of the fourth sealing sheet 114 adjacent to the third sealing sheet 113 is exposed, and space is reserved for the second sealing groove.

[0034] In an embodiment, as shown in Figures 2 to 4 The length of the first sealing sheet 111 is greater than the length of the fourth sealing sheet 114. By setting the length of the first sealing sheet 111 to be greater than the length of the fourth sealing sheet 114, this structure is conducive to increasing the contact area between the nut of the first screw 131 and the first sealing sheet 111, facilitating the assembly of the first screw 131 through the first sealing sheet 111, the first plate 121 and the fourth sealing sheet 114 in sequence, and also increasing the contact area between the first plate 121 and the first sealing sheet 111 and the fourth sealing sheet 114, which helps to better protect the first plate 121.

[0035] In an embodiment, as shown in Figures 2 to 4As shown, the length of the third sealing sheet 113 is greater than the length of the sixth sealing sheet 116. By setting the length of the third sealing sheet 113 to be greater than the length of the sixth sealing sheet 116, this structure is conducive to increasing the contact area between the nut of the second screw 132 and the third sealing sheet 113, facilitating the sequential insertion of the second screw 132 through the second sealing sheet 112, the third sealing sheet 113, the second plate 122, and the sixth sealing sheet 116 during assembly, and also increasing the contact area between the second plate 122 and the third sealing sheet 113 and the sixth sealing sheet 116, which helps to better protect the second plate 122.

[0036] In an embodiment, as shown in FIG. 1, the first sealing sheet 111 is bent away from the edge of the second sealing sheet 112 toward the inner side of the first sealing groove 11A to form a first anti-skid strip 141. In this way, when the first plate 121 is inserted into the first sealing groove 11A, the first anti-skid strip 141 deforms and abuts against the outer side wall of the first plate 121, which prevents the first plate 121 from sliding out of the first sealing groove 11A and facilitates the fastening of the first plate 121 in the first sealing groove 11A. Figures 2 to 4

[0037] In an embodiment, as shown in FIG. 1, the sixth sealing sheet 116 is bent away from the edge of the fifth sealing sheet 115 toward the inner side of the second sealing groove 11B to form a second anti-skid strip 142. In this way, when the second plate 122 is inserted into the second sealing groove 11B, the second anti-skid strip 142 deforms and abuts against the inner side wall of the second plate 122, which prevents the second plate 122 from sliding out of the second sealing groove 11B and facilitates the fastening of the second plate 122 in the second sealing groove 11B. Figures 2 to 4

[0038] Figures 2 to 4 In an embodiment, as shown in FIG. 1, the connection between the fourth sealing sheet 114 and the fifth sealing sheet 115 is raised toward the inner side of the first sealing groove 11A to form a third anti-skid strip 143. In this way, when the first plate 121 is inserted into the first sealing groove 11A, the third anti-skid strip 143 deforms and abuts against the inner side wall of the first plate 121, which prevents the first plate 121 from sliding out of the first sealing groove 11A and facilitates the fastening of the first plate 121 in the first sealing groove 11A.

[0039] In an embodiment, as shown in FIG. 1, the connection between the fourth sealing sheet 114 and the fifth sealing sheet 115 is raised toward the inner side of the first sealing groove 11A to form a third anti-skid strip 143. In this way, when the first plate 121 is inserted into the first sealing groove 11A, the third anti-skid strip 143 deforms and abuts against the inner side wall of the first plate 121, which prevents the first plate 121 from sliding out of the first sealing groove 11A and facilitates the fastening of the first plate 121 in the first sealing groove 11A. ​ ​​​As shown, the connection between the second sealing sheet 112 and the third sealing sheet 113 is raised towards the inner side of the second sealing groove 11B to form a fourth anti-skid strip 144. In this way, when the second plate 122 is inserted into the second sealing groove 11B, the fourth anti-skid strip 144 deforms and abuts against the outer side wall of the second plate 122, which prevents the second plate 122 from sliding out of the second sealing groove 11B, and is conducive to increasing the fastening of the second plate 122 in the second sealing groove 11B.

[0040] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An air duct seal, characterized by, The sealing piece comprises a first sealing piece, a second sealing piece, a third sealing piece, a fourth sealing piece, a fifth sealing piece and a sixth sealing piece connected in sequence. The second sealing piece is folded towards the inner side of the first sealing piece and is perpendicular to the first sealing piece, the third sealing piece is folded towards the inner side of the first sealing piece and overlaps the second sealing piece, the fourth sealing piece is folded towards the side away from the first sealing piece and is parallel to the first sealing piece, so as to define a first sealing groove with the first sealing piece and the second sealing piece. The fifth sealing piece is folded towards the side of the fourth sealing piece away from the first sealing piece and overlaps the fourth sealing piece, the sixth sealing piece is folded towards the side away from the first sealing piece and is parallel to the third sealing piece, so as to define a second sealing groove with the third sealing piece and the fourth sealing piece.

2. The duct seal of claim 1, wherein, The first sealing groove and the second sealing groove both extend along the width direction of the sealing pieces, and the opening direction of the first sealing groove is the same as the length direction of the first sealing piece, and the opening direction of the second sealing groove is the same as the length direction of the second sealing piece, so that the opening direction of the first sealing groove is perpendicular to the opening direction of the second sealing groove.

3. The duct seal of claim 1, wherein, The air pipe sealing piece is integrally formed by a metal sheet, and the metal sheet is folded in sequence to form the first sealing piece, the second sealing piece, the third sealing piece, the fourth sealing piece, the fifth sealing piece and the sixth sealing piece connected in sequence.

4. The duct seal of claim 1, wherein, The length of the third sealing piece is smaller than the length of the second sealing piece, and the length of the fifth sealing piece is smaller than the length of the fourth sealing piece.

5. A duct seal according to claim 4, wherein, The length of the first sealing piece is greater than the length of the fourth sealing piece.

6. The duct seal of claim 4, wherein, The length of the third sealing piece is greater than the length of the sixth sealing piece.

7. The duct seal of claim 1, wherein The edge of the first sealing piece away from the second sealing piece is folded towards the inner side of the first sealing groove to form a first anti-skid strip.

8. The duct seal of claim 1, wherein, The edge of the sixth sealing piece away from the fifth sealing piece is folded towards the inner side of the second sealing groove to form a second anti-skid strip.

9. The duct seal of claim 1, wherein, The connection between the fourth sealing piece and the fifth sealing piece is raised towards the inner side of the first sealing groove to form a third anti-skid strip.

10. The duct seal of claim 1, wherein, The connection between the second sealing piece and the third sealing piece is raised towards the inner side of the second sealing groove to form a fourth anti-skid strip.

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