Smoke exhaust air pipe device with good sealing performance

Abstract

The utility model discloses a smoke exhaust air pipe device with good sealing performance, relates to the technical field of smoke exhaust systems, and aims to solve the problem that when an existing smoke exhaust air pipe is installed and connected, the smoke leakage sealing performance of a contact position is poor. The first wrapping cover body and the second wrapping cover body are installed on the outer circle where the multiple smoke exhaust air pipe bodies are connected, second sealing rubber layers are arranged in the middles of the inner walls of the first wrapping cover body and the second wrapping cover body, and protruding connecting rod bodies are arranged on the two sides of the inner walls of the first wrapping cover body and the second wrapping cover body correspondingly. Groove rings are arranged in the outer walls of the two ends of the multiple smoke exhaust air pipe bodies, and first sealing rubber layers are arranged on the outer walls of the groove rings.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust systems, in particular to a smoke exhaust air duct device with good sealing performance. Background Art

[0002] Smoke control and exhaust systems consist of supply and exhaust ducts, manholes, fire dampers, door opening and closing devices, and supply and exhaust fans. Smoke control systems are typically installed with positive pressure in stairwells. The exhaust volume of mechanical smoke exhaust systems is directly related to smoke zones. Smoke control facilities in high-rise buildings should be divided into those with mechanical pressurized air supply and those with natural exhaust through openable exterior windows.

[0003] For example, the announcement number is CN216592086U, and the name of the Chinese authorized patent is (a cooling type smoke exhaust duct), comprising: a duct body, characterized in that it also includes: a cooling device, the cooling device is arranged on the outside of the duct body, the cooling device comprises an outer cover, a cooling liquid and a nozzle, both side end faces of the outer cover are connected to the both side end faces of the duct body, a cavity is provided between the outer cover and the duct body, the outer cover is a hollow structure, the cooling liquid is filled in the interior of the outer cover, and the nozzle is provided between the outer cover and the duct body; the above-mentioned cooling type smoke exhaust duct, the setting of the cooling device enables the duct to be cooled in the process of exhausting smoke, thereby improving the service life of the duct, and the cooling liquid is sprayed onto the outside of the duct body through the nozzle, thereby realizing cooling of the duct body, and the cooling method of spraying the cooling liquid not only does not hinder the discharge of smoke, but also can improve the fluidity of the cooling liquid and improve the cooling effect.

[0004] However, when the existing smoke exhaust duct is installed and connected, there is a problem of poor smoke leakage and sealing at the contact position; therefore, it does not meet the existing needs. In this regard, we propose a smoke exhaust duct device with good sealing performance. Utility Model Content

[0005] The purpose of the utility model is to provide a smoke exhaust duct device with good sealing performance, so as to solve the problem of poor smoke leakage and sealing at the contact position of the existing smoke exhaust duct during installation and connection proposed in the background art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a smoke exhaust duct device with good sealing performance, comprising: a smoke exhaust duct body, wherein the smoke exhaust duct body is provided with a plurality of smoke exhaust duct bodies, and the outer walls of the plurality of smoke exhaust duct bodies at both ends are provided with connecting plates, and the connecting plates are welded to the smoke exhaust duct body;

[0007] Also includes:

[0008] The first wrapping cover body and the second wrapping cover body are installed in an outer circle connected to several of the smoke exhaust duct main bodies. A second sealing rubber layer is provided at the middle position of the inner wall of the first wrapping cover body and the second wrapping cover body. Both sides of the inner wall of the first wrapping cover body and the second wrapping cover body are provided with protruding connecting rod bodies. The outer walls of both ends of several of the smoke exhaust duct main bodies are provided with groove circles, and the outer wall of the groove circle is provided with a first sealing rubber layer.

[0009] Preferably, the front side and the rear side of the outer wall of the first wrapping cover are both provided with second connection blocks, and the front side and the rear side of the outer wall of the second wrapping cover are both provided with first connection blocks.

[0010] Preferably, a first connecting plate is provided on the front side of the lower end face of the first connecting block, the first connecting plate is rotatably connected to the first connecting block through a rotating shaft, a second connecting plate is provided on the upper end of the first connecting plate, a threaded rod is provided inside the second connecting plate, the threaded rod is rotatably connected to the second connecting plate through a rotating thread, and a clamping plate is provided on the lower end face of the threaded rod.

[0011] Preferably, the second sealing rubber layer is heat-melted to the middle positions of the inner walls of the first and second wrapping covers respectively, and the first sealing rubber layer is heat-melted to the outer wall of the groove ring.

[0012] Preferably, one end of the first connecting block and the second connecting block are welded to the outer wall of the first wrapping cover and the outer wall of the second wrapping cover respectively.

[0013] Preferably, a smoke exhaust cavity is provided inside several of the smoke exhaust duct bodies.

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

[0015] 1. The utility model is to threadably connect the connecting plates of the first wrapping cover body and the second wrapping cover body, and the first connecting block, the second connecting block, the first connecting plate, the rotating shaft body, the second connecting plate, the threaded rod body, the clamping plate and the second sealing rubber layer are arranged on the first wrapping cover body and the second wrapping cover body. After the connection, the first wrapping cover body and the second wrapping cover body are wrapped around the connecting plate to completely wrap the connection position. After the wrapping is completed, the first connecting plate is installed on the top of the second connecting plate through the setting of the rotating shaft body, and then the threaded rod body is rotated to firmly fit the second connecting block on the first connecting block with the clamping plate, thereby effectively ensuring the tightness of the wrapping of the first wrapping cover body and the second wrapping cover body. At the same time, the raised connecting rod body arranged in the first wrapping cover body and the second wrapping cover body can be effectively fixed in the groove ring, and the tightness of the connection is improved by the first sealing rubber layer, which effectively avoids the problem of poor smoke leakage and sealing at the contact position of the existing smoke exhaust duct during installation and connection.

[0016] 2. The raised connecting rod body provided in the first wrapping cover and the second wrapping cover can be effectively fixed in the groove ring, and the tightness of the connection is improved by the first sealing rubber layer, and the outer circle of the connecting plate is installed at the position of the second sealing rubber layer. Finally, when the ends of several exhaust duct bodies are connected, the sealing can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the first wrapping cover and the second wrapping cover of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of point A of the present utility model;

[0020] Figure 4 This is a schematic diagram of the structure of point B of the present utility model;

[0021] In the figure: 100, smoke exhaust duct body; 101, connecting plate; 102, smoke exhaust cavity; 103, groove ring; 104, first sealing rubber layer; 200, first wrapping cover; 200-1, second wrapping cover; 201, raised connecting rod; 202, first connecting block; 203, second connecting block; 204, first connecting plate; 205, rotating shaft; 206, second connecting plate; 207, threaded rod; 208, clamping plate; 209, second sealing rubber layer. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1

[0024] See also Figure 1-4 The utility model provides an embodiment of a smoke exhaust duct device with good sealing performance, comprising: a smoke exhaust duct body 100, wherein the smoke exhaust duct body 100 is provided with a plurality of connecting plates 101 on the outer walls of both ends of the plurality of smoke exhaust duct bodies 100, and the connecting plates 101 are welded to the smoke exhaust duct body 100;

[0025] Also includes:

[0026] The first wrapping cover 200 and the second wrapping cover 200-1 are installed in an outer circle connected to several smoke exhaust duct main bodies 100. A second sealing rubber layer 209 is provided at the middle position of the inner wall of the first wrapping cover 200 and the second wrapping cover 200-1. Both sides of the inner wall of the first wrapping cover 200 and the second wrapping cover 200-1 are provided with a raised connecting rod body 201. The outer walls of both ends of the several smoke exhaust duct main bodies 100 are provided with a groove ring 103, and the outer wall of the groove ring 103 is provided with a first sealing rubber layer 104.

[0027] The first wrapping cover 200 and the second wrapping cover 200-1 can wrap the ends of several smoke exhaust duct bodies 100 when they are connected, thereby improving the sealing performance. The second sealing rubber layer 209 and the first sealing rubber layer 104 can maximize the avoidance of connection gaps and improve the tightness of the connection.

[0028] Example 2

[0029] See also Figure 1 and Figure 3 A second connecting block 203 is provided on the front and rear sides of the outer wall of the first wrapping cover body 200, and a first connecting block 202 is provided on the front and rear sides of the outer wall of the second wrapping cover body 200-1. A first connecting plate 204 is provided on the front side of the lower end face of the first connecting block 202. The first connecting plate 204 is rotatably connected to the first connecting block 202 through a rotating shaft 205. A second connecting plate 206 is provided at the upper end of the first connecting plate 204. A threaded rod 207 is provided inside the second connecting plate 206. The threaded rod 207 is rotatably connected to the second connecting plate 206 by a thread, and a clamping plate 208 is provided on the lower end face of the threaded rod 207.

[0030] After the connection position of the first wrapping cover 200 and the second wrapping cover 200-1 is completely wrapped, the first connecting plate 204 is installed on the top of the second connecting plate 206 through the setting of the rotating shaft 205, and then the threaded rod 207 is rotated to fix the second connecting block 203 firmly on the first connecting block 202 with the clamping plate 208.

[0031] See also Figure 4 The second sealing rubber layer 209 is heat-melted to the middle position of the inner wall of the first wrapping cover 200 and the second wrapping cover 200-1 respectively, and the first sealing rubber layer 104 is heat-melted to the outer wall of the groove ring 103.

[0032] The hot melt connection method can firmly connect the rubber layer to the object.

[0033] See also Figure 1 and Figure 3One end of the first connecting block 202 and the second connecting block 203 are respectively welded to the outer walls of the first wrapping cover 200 and the second wrapping cover 200 - 1 , and a smoke exhaust cavity 102 is provided inside the plurality of smoke exhaust duct bodies 100 .

[0034] Working principle: When several smoke exhaust duct bodies 100 are connected and fixed, the connecting plates 101 between the two are threadedly connected. After the connection, the first wrapping cover 200 and the second wrapping cover 200-1 wrap the connecting plate 101 to completely wrap the connection position. After the wrapping is completed, the first connecting plate 204 is installed on the top of the second connecting plate 206 through the setting of the rotating shaft 205, and the threaded rod 207 is installed. Then, by rotating the threaded rod 207, the clamping plate 208 firmly fits the second connecting block 203 on the first On a connecting block 202, thereby effectively ensuring the tightness of the first wrapping cover 200 and the second wrapping cover 200-1. At the same time, the raised connecting rod body 201 set in the first wrapping cover 200 and the second wrapping cover 200-1 can be effectively fixed in the groove ring 103, and the tightness of the connection is improved by the first sealing rubber layer 104, and the outer circle of the connecting plate 101 is installed at the position of the second sealing rubber layer 209. Finally, when the ends of several smoke exhaust duct bodies 100 are connected, the sealing can be enhanced.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A smoke exhaust duct device with good sealing performance, comprising a smoke exhaust duct body (100), wherein the smoke exhaust duct body (100) is provided with a plurality of them, and the outer walls of both ends of the plurality of the smoke exhaust duct bodies (100) are provided with connecting plates (101), and the connecting plates (101) are welded to the smoke exhaust duct body (100); Its characteristics are: Also includes: The first wrapping cover (200) and the second wrapping cover (200-1) are installed in an outer circle connected to several of the smoke exhaust duct bodies (100), and a second sealing rubber layer (209) is provided at the middle position of the inner wall of the first wrapping cover (200) and the second wrapping cover (200-1), and protruding connecting rods (201) are provided on both sides of the inner wall of the first wrapping cover (200) and the second wrapping cover (200-1), and a groove ring (103) is provided inside the outer wall of both ends of several of the smoke exhaust duct bodies (100), and a first sealing rubber layer (104) is provided on the outer wall of the groove ring (103).

2. A smoke exhaust duct device with good sealing performance according to claim 1, characterized in that: The front and rear sides of the outer wall of the first wrapping cover (200) are both provided with second connection blocks (203), and the front and rear sides of the outer wall of the second wrapping cover (200-1) are both provided with first connection blocks (202).

3. A smoke exhaust duct device with good sealing performance according to claim 2, characterized in that: A first connecting plate (204) is provided on the front side of the lower end surface of the first connecting block (202), and the first connecting plate (204) is rotatably connected to the first connecting block (202) through a rotating shaft (205). A second connecting plate (206) is provided at the upper end of the first connecting plate (204), and a threaded rod (207) is provided inside the second connecting plate (206). The threaded rod (207) is rotatably connected to the second connecting plate (206), and a clamping plate (208) is provided on the lower end surface of the threaded rod (207).

4. The smoke exhaust duct device with good sealing performance according to claim 1, characterized in that: The second sealing rubber layer (209) is heat-melted to the middle positions of the inner walls of the first wrapping cover (200) and the second wrapping cover (200-1), respectively, and the first sealing rubber layer (104) is heat-melted to the outer wall of the groove ring (103).

5. The smoke exhaust duct device with good sealing performance according to claim 2, characterized in that: One end of the first connecting block (202) and the second connecting block (203) are respectively welded to the outer walls of the first wrapping cover (200) and the second wrapping cover (200-1).

6. The smoke exhaust duct device with good sealing performance according to claim 1, characterized in that: A smoke exhaust cavity (102) is provided inside a plurality of the smoke exhaust duct bodies (100).

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