Ventilation pipeline sealing structure

Abstract

The utility model relates to the technical field of ventilation pipelines, and discloses a ventilation pipeline sealing structure which comprises a first pipeline, a second pipeline is arranged on one side of the first pipeline, an inner sealing sleeve is fixedly connected to the inner wall of the first pipeline, and an outer sealing sleeve is fixedly connected to the outer wall, located on one side of the inner sealing sleeve, of the first pipeline. A second sealing groove and a first sealing groove which are matched with the inner sealing sleeve and the outer sealing sleeve are formed in the inner wall of the second pipeline, two L-shaped grooves are symmetrically formed in the outer wall of the first pipeline, two inner grooves are symmetrically formed in the inner wall of the second pipeline, and L-shaped blocks matched with the two L-shaped grooves are slidably connected to the outer walls of the two inner grooves; according to the ventilation pipeline sealing device, multiple sealing can be conducted on a ventilation pipeline, so that the sealing performance of the ventilation pipeline is improved, the situation that the practicability of the ventilation pipeline is affected due to leakage of the ventilation pipeline is avoided, meanwhile, the ventilation pipeline can be rapidly disassembled and assembled, and the maintenance convenience of the ventilation pipeline is improved.

Description

Technical Field

[0001] The present application relates to the technical field of ventilation ducts, and in particular, to a ventilation duct sealing structure. Background Art

[0002] A ventilation duct is a metal or composite duct used in the ventilation and air conditioning projects of industrial and civil buildings. Connections are often required between ducts to discharge harmful gases indoors and increase air circulation indoors.

[0003] Regarding the above related technologies, the inventor believes that the existing connection components of ventilation ducts and ventilation ducts lack tightness at the connection, resulting in air leakage easily occurring during later use, reducing the practicality of ventilation ducts, and the disassembly and maintenance between ventilation ducts are rather troublesome, affecting the maintenance efficiency of workers. Therefore, a ventilation duct sealing structure is proposed to solve the above problems.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of the present application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Utility Model Content

[0005] In order to solve the above problems, the present application provides a ventilation duct sealing structure.

[0006] The ventilation duct sealing structure provided by the present application adopts the following technical solutions:

[0007] A ventilation duct sealing structure includes a first duct. A second duct is provided on one side of the first duct. An inner sealing sleeve is fixedly connected to the inner wall of the first duct. An outer sealing sleeve is fixedly connected to the outer wall of the first duct on the side of the inner sealing sleeve. And a second sealing groove and a first sealing groove adapted to the inner sealing sleeve and the outer sealing sleeve are formed in the inner wall of the second duct. Two L-shaped grooves are symmetrically formed in the outer wall of the first duct. Two inner grooves are symmetrically provided in the inner wall of the second duct. L-shaped blocks adapted to the two L-shaped grooves are slidably connected to the outer walls of the two inner grooves. And a fixing component is provided on the outer wall of the L-shaped block.

[0008] Preferably, a sealing ring is installed on the outer wall of the first duct on the side of the outer sealing sleeve. And a circular groove adapted to it is formed in the outer wall of the second duct.

[0009] Preferably, the fixing component includes two springs. The two springs are arranged between the two inner grooves and the two L-shaped blocks. And the springs are fixedly connected to the L-shaped blocks and the inner grooves respectively. A long rod is fixedly connected to the outer wall of the L-shaped block away from the spring.

[0010] Preferably, a circular sleeve is fixedly connected to the outer wall of the L-shaped block, and the long rod is sleeved in the circular sleeve, and the circular sleeve is designed in a conical shape.

[0011] In summary, the present application includes the following beneficial technical effects:

[0012] By providing the inner sealing sleeve, the outer sealing sleeve, the second sealing groove and the first sealing groove, when the first pipe and the second pipe are butted, the inner sealing sleeve, the outer sealing sleeve, the second sealing groove and the first sealing groove are butted, so as to double-seal the pipe. At the same time, through the seal between the sealing ring and the circular groove, the sealing performance between the first pipe and the second pipe is improved, further improving the sealing performance of the pipe. At the same time, the disassembly and assembly between the first pipe and the second pipe can also be completed by docking the L-shaped block with the L-shaped groove. Compared with the prior art, the ventilation pipe can be multi-sealed, thereby improving the sealing performance of the ventilation pipe, avoiding leakage and affecting its practicability. At the same time, the ventilation pipe can also be quickly disassembled and assembled, improving the convenience of its maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall schematic diagram of the first embodiment of the application;

[0014] Figure 2 is the overall structural sectional view of the first embodiment of the application;

[0015] Figure 3 is Figure 2 the enlarged schematic view of the structure at A in

[0016] Explanation of reference numerals: 1, first pipe; 2, L-shaped groove; 3, outer sealing sleeve; 4, sealing ring; 5, long rod; 6, second pipe; 7, L-shaped block; 8, inner sealing sleeve; 9, first sealing groove; 10, circular sleeve; 11, second sealing groove; 12, circular groove; 13, inner groove; 14, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following is a further detailed description of the present application in conjunction with the attached Figure 1 - Figure 3 drawings.

[0018] Embodiment 1:

[0019] A ventilation duct sealing structure includes a first duct 1. A second duct 6 is provided on one side of the first duct 1. The first duct 1 is docked with the second duct 6 to facilitate the connection and installation of the ventilation duct. An inner sealing sleeve 8 is fixedly connected to the inner wall of the first duct 1. An outer sealing sleeve 3 is fixedly connected to the outer wall of the first duct 1 on the side of the inner sealing sleeve 8. The inner sealing sleeve 8 is located inside the outer sealing sleeve 3, and the end of the inner sealing sleeve 8 is shorter than the end of the outer sealing sleeve 3. Second sealing grooves 11 and first sealing grooves 9 adapted to the inner sealing sleeve 8 and the outer sealing sleeve 3 are formed in the inner wall of the second duct 6. By docking the inner sealing sleeve 8 and the outer sealing sleeve 3 with the second sealing grooves 11 and the first sealing grooves 9, the duct can be double-sealed. Then, through the change in the lengths of the outer sealing sleeve 3 and the inner sealing sleeve 8, the sealing effect can be improved. Two L-shaped grooves 2 are symmetrically formed on the outer wall of the first duct 1. Two inner grooves 13 are symmetrically arranged on the inner wall of the second duct 6. L-shaped blocks 7 adapted to the two L-shaped grooves 2 are slidably connected to the outer walls of the two inner grooves 13. A fixing component is arranged on the outer wall of the L-shaped block 7. By the L-shaped block 7 being adapted to the L-shaped groove 2, when the first duct 1 and the second duct 6 are docked, the L-shaped block 7 is pushed into the L-shaped groove 2. Thus, the L-shaped block 7 is vertically controlled by the fixing component, and the L-shaped block 7 is fixed to the L-shaped groove 2, thereby completing the rapid installation between the first duct 1 and the second duct 6 and facilitating the disassembly, installation and maintenance by workers.

[0020] A sealing ring 4 is installed on the outer wall of the first duct 1 on the side of the outer sealing sleeve 3. A circular groove 12 adapted to it is formed in the outer wall of the second duct 6. By the sealing ring 4 being engaged with the circular groove 12, the sealing performance between the first duct 1 and the second duct 6 can be improved, further enhancing the sealing performance of the duct.

[0021] The fixing component includes two springs 14. The two springs 14 are arranged between the two inner grooves 13 and the two L-shaped blocks 7, and the springs 14 are fixedly connected to the L-shaped blocks 7 and the inner grooves 13 respectively. A long rod 5 is fixedly connected to the outer wall of the L-shaped block 7 away from the spring 14. By pressing the long rod 5, the L-shaped block 7 can be driven to move downward, so that the L-shaped block 7 is docked with the L-shaped groove 2. When the L-shaped block 7 reaches the inside of the L-shaped groove 2, the pressing on the long rod 5 is released. Then, the spring 14 drives the L-shaped block 7 to rebound, so that the end of the L-shaped block 7 is engaged with the inside of the L-shaped groove 2, completing the fixation between the first duct 1 and the second duct 6.

[0022] The outer wall of the L-shaped block 7 is fixedly connected with a circular sleeve 10, and the long rod 5 is sleeved in the circular sleeve 10. The circular sleeve 10 is designed in a conical shape. Since the circular sleeve 10 is conical, the bottom of the circular sleeve 10 is larger and the top is smaller. When the L-shaped block 7 rebounds driven by the elastic force of the spring 14, at this time, the circular sleeve 10 is stuck with the outer wall of the inner groove 13, and then the inner groove 13 is sealed, improving the sealing performance of the device. It should be noted that when the circular sleeve 10 is stuck by the inner groove 13, at this time, the L-shaped block 7 is just fixed with the L-shaped groove 2.

[0023] The implementation principle of a ventilation duct sealing structure according to an embodiment of the present application is as follows: First, the inner sealing sleeve 8 and the outer sealing sleeve 3 inside the first duct 1 are docked with the first sealing groove 9 and the second sealing groove 11 in the second duct 6, adding double sealing to the connection between the first duct 1 and the second duct 6, thereby improving the sealing performance of the duct. When the first duct 1 and the second duct 6 are docked, the sealing ring 4 on the first duct 1 is docked with the circular groove 12 on the second duct 6, thereby improving the sealing performance between the first duct 1 and the first sealing groove 9 and further improving the sealing performance of the duct connection. At the same time, when the first duct 1 is docked with the first sealing groove 9, by pressing the long rod 5, the long rod 5 drives the L-shaped block 7 to move downward, thereby generating a squeezing force on the spring 14, and then the L-shaped block 7 is docked with the L-shaped groove 2 on the first duct 1 to ensure that the L-shaped block 7 abuts against the inside of the L-shaped groove 2. Then, by releasing the pressing on the long rod 5, the spring 14 converts the previous squeezing force into a resilience force, and then the L-shaped block 7 moves upward to ensure the engagement between the L-shaped block 7 and the L-shaped groove 2, and then the installation between the first duct 1 and the first sealing groove 9 is completed, facilitating the operation of the worker.

[0024] The above text has described an exemplary implementation manner of a ventilation duct sealing structure provided by the present disclosure with reference to preferred embodiments. However, those skilled in the art can understand that without departing from the concept of the present disclosure, various modifications and variations can be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present disclosure can be made without exceeding the protection scope of the present disclosure. The protection scope of the present disclosure is determined by the appended claims.

Claims

1. A ventilation duct sealing structure, comprising a first duct (1), characterized in that: A second pipe (6) is provided on one side of the first pipe (1). An inner sealing sleeve (8) is fixedly connected to the inner wall of the first pipe (1). An outer sealing sleeve (3) is fixedly connected to the outer wall of the first pipe (1) on one side of the inner sealing sleeve (8). Second sealing grooves (11) and first sealing grooves (9) adapted to the inner sealing sleeve (8) and the outer sealing sleeve (3) are provided on the inner wall of the second pipe (6). Two L-shaped grooves (2) are symmetrically provided on the outer wall of the first pipe (1). Two inner grooves (13) are symmetrically provided on the inner wall of the second pipe (6). The outer walls of the two inner grooves (13) are both slidably connected with L-shaped blocks (7) adapted to the two L-shaped grooves (2). A fixing component is provided on the outer wall of the L-shaped block (7).

2. The air duct sealing structure according to claim 1, characterized in that: A sealing ring (4) is installed on the outer wall of the first pipe (1) on one side of the outer sealing sleeve (3). A circular groove (12) adapted to it is provided on the outer wall of the second pipe (6).

3. A ventilation duct sealing structure according to claim 1, characterized in that: The fixing component includes two springs (14). The two springs (14) are arranged between the two inner grooves (13) and the two L-shaped blocks (7). The springs (14) are fixedly connected to the L-shaped blocks (7) and the inner grooves (13) respectively. A long rod (5) is fixedly connected to the outer wall of the L-shaped block (7) facing away from the spring (14).

4. A ventilation duct sealing structure according to claim 3, characterized in that: A circular sleeve (10) is fixedly connected to the outer wall of the L-shaped block (7). The long rod (5) is sleeved in the circular sleeve (10). The circular sleeve (10) is designed in a conical shape.

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