Sealing connection device for heating and ventilation decoration pipelines

Abstract

The utility model discloses a sealing connection device for heating and ventilation decoration pipelines, which comprises a first pipeline and a second pipeline which are oppositely arranged, one side of the first pipeline is fixedly provided with a connecting pipe, the second pipeline is inserted into the end part of the connecting pipe, and the outer side wall of the second pipeline is fixedly provided with a fixing ring; the movable pipe is connected to the outer side wall of the connecting pipe in a screwed mode, and a limiting ring used for being connected with the fixing ring in a clamped mode is arranged on the side portion of the movable pipe. A through airflow channel is formed in the connecting pipe, a movable bobbin is arranged in the airflow channel in a sliding mode, a fixing plate is arranged on one side of the airflow channel, a plurality of connecting rods are arranged on the periphery of the fixing plate in the circumferential direction, and a spring abutting against the bottom of the bobbin is arranged on one side of the fixing plate. The utility model can solve the problem that the existing heating and ventilation decoration pipeline is easy to leak due to insufficient sealing performance and stability of connecting parts.

Description

Technical Field

[0001] The utility model relates to the technical field of heating and ventilation engineering, in particular to a sealing connection device for heating and ventilation decoration pipelines. Background Art

[0002] In the existing HVAC and interior decoration field, the installation and connection of piping systems is a crucial link. This is especially true in applications such as purification system return air ducts, central air conditioning ventilation ducts, industrial supply and exhaust ventilation ducts, environmental protection system intake and exhaust ducts, mining gas extraction pipes, and mining rubberized cloth air ducts. The sealing, stability, and ease of installation of piping connections directly affect the performance and lifespan of the entire system.

[0003] Currently, common pipe connection methods include threaded connections, welding, and flange connections. While these traditional connection methods can achieve a certain degree of pipe connection, they are prone to leakage during long-term use, especially when the pipes are subject to vibration or temperature fluctuations. Existing connection methods often require specialized technicians, resulting in complex installation processes, high worker skill requirements, and low installation efficiency. Therefore, we propose a sealing connection device for HVAC decorative pipes. Utility Model Content

[0004] The utility model provides a sealing connection device for HVAC decorative pipes, which can solve the problem that the existing HVAC decorative pipes are prone to leakage due to insufficient sealing and stability of connecting parts.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a sealing connection device for HVAC decoration and decoration pipes, comprising a first pipe and a second pipe arranged opposite to each other, a connecting pipe fixedly provided on one side of the first pipe, the second pipe inserted into the end of the connecting pipe, and a fixing ring fixedly provided on the outer wall of the second pipe; a movable pipe, which is screwed on the outer wall of the connecting pipe, and a side portion of the movable pipe is provided with a limiting ring for clamping the fixing ring; a through air flow channel is provided in the connecting pipe, a movable barrel is slidably provided in the air flow channel, a fixing plate is provided on one side of the air flow channel, a plurality of connecting rods are provided on the outer periphery of the fixing plate along the circumferential direction, a spring is provided on one side of the fixing plate for abutting the bottom of the barrel, a sealing block is fixedly provided on one side of the movable barrel, a limiting ring platform is provided in the first pipe for cooperating with the sealing block, the structure is simple, the operation is convenient, the pipes are easy to connect, the sealing effect at the pipe interface is good, the leaking pipe can be automatically sealed, and the convenience of using the pipe is effectively improved.

[0006] Preferably, a connecting groove matching the second pipe is provided at the end of the connecting pipe, and the second pipe is inserted into the connecting groove for easy installation.

[0007] Preferably, the surface of the connecting groove is provided with an annular fixing groove along the circumferential direction, and a number of positioning balls are evenly distributed in the fixing groove. A limiting groove for fixing the positioning balls is provided on the left side wall of the second pipe. The positioning balls drive the second pipe to move in the connecting groove. When the positioning balls move into the fixing groove, the connecting pipe and the second pipe are initially connected.

[0008] Preferably, the inner side wall of the air flow channel is provided with a guide ring platform that is slidably matched with the movable barrel, and the structure is simple.

[0009] Preferably, an external thread is provided on the right outer wall of the connecting pipe, and an internal thread matching the external thread is provided on the inner wall of the movable pipe. Through the mutual cooperation between the internal thread and the external thread, the connecting pipe, the movable pipe and the second pipe can be stably connected.

[0010] Preferably, a plurality of guide holes are provided on the side wall of the movable tube in a circumferential direction to connect the inner cavity of the movable tube with the air flow channel. The guide holes can realize communication between the first pipe and the second pipe under the action of air flow pressure.

[0011] Preferably, a first sealing ring is provided on the outer side wall of the second pipe on one side of the fixing ring, and a second sealing ring is provided on the bottom of the side of the second pipe located in the connecting groove, so as to provide good sealing performance.

[0012] Preferably, the outer side of the movable tube is provided with anti-slip grooves, which improves the grip during operation and makes the connection and disassembly process safer and more convenient.

[0013] Preferably, a fixing nut is screwed onto the outer side wall of one end of the first pipe close to the connecting pipe, which facilitates connection.

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

[0015] It has a simple structure, good sealing and stability, easy operation, easy connection between pipes, good sealing effect at the pipe interface, and can automatically seal leaking pipes, effectively improving the convenience of pipe use. It can solve the problem that existing HVAC decoration pipes are prone to leakage due to insufficient sealing and stability of connecting parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0017] Figure 2 This is a main cross-sectional structural diagram of the present utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the utility model in an unassembled state;

[0019] Figure 4 It is a structural diagram of A of the present utility model;

[0020] Figure 5 This is a schematic structural diagram of point B of the present utility model.

[0021] Reference numerals:

[0022] 1. First pipe, 2. Second pipe, 3. Connecting pipe, 31. Air flow channel, 4. Connecting groove, 5. Fixed ring, 6. Limiting ring, 7. Movable pipe, 8. Internal thread, 9. External thread, 10. Limiting groove, 11. Positioning ball, 12. Fixed groove, 13. Connecting rod, 14. Fixed plate, 15. Spring, 16. Movable bobbin, 17. Sealing block, 18. Limiting ring platform, 19. Guide hole, 20. Guide ring platform, 21. First sealing ring, 22. Second sealing ring, 23. Anti-slip groove, 24. Fixing nut. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] like Figure 1-5As shown, the utility model solves the problem that the existing HVAC decoration and renovation pipes are prone to leakage due to insufficient sealing and stability of the connecting parts, and provides the following technical solutions: a sealing connection device for HVAC decoration and renovation pipes, comprising a first pipe 1 and a second pipe 2 arranged relatively to each other, a connecting pipe 3 fixedly provided on one side of the first pipe 1, the second pipe 2 is inserted into the end of the connecting pipe 3, and a fixing ring 5 is fixedly provided on the outer wall of the second pipe 2; a movable pipe 7 is screwed on the outer wall of the connecting pipe 3, and a limiting ring 6 for clamping the fixing ring 5 is provided on the side of the movable pipe 7; a through air flow channel 31 is provided in the connecting pipe 3, a movable barrel 16 is slidably provided in the air flow channel 31, a fixing plate 14 is provided on one side of the air flow channel 31, and a plurality of connecting rods 13 are provided on the outer periphery of the fixing plate 14 along the circumferential direction. One side of the fixed plate 14 is provided with a spring 15 abutting the bottom of the barrel 16, and a sealing block 17 is fixedly provided on one side of the movable barrel 16. A limiting ring platform 18 cooperating with the sealing block 17 is provided in the first pipe 1. When there is no airflow inside the pipe, under the action of the elastic force of the spring 15, the sealing block 17 contacts the limiting ring platform 18, so that the first pipe 1 can be closed by the mutual cooperation between the sealing block 17 and the limiting ring platform 18. When the airflow passes through the inside of the first pipe 1, under the action of the airflow pressure, the sealing block 17 is separated from the limiting ring platform 18, so that the airflow inside the first pipe 1 can enter the inside of the second pipe 2 through the guide hole 19. When the sealing performance of the connection between the pipes deteriorates, the air pressure inside the pipe becomes smaller, so that the sealing block 17 can automatically seal the limiting ring platform 18, and the sealing effect at the pipe interface is good, which effectively improves the convenience of use of the pipe.

[0025] In this embodiment, if Figure 2 As shown, a connecting groove 4 matching the second pipe 2 is opened at the end of the connecting pipe 3, and the second pipe 2 is inserted into the connecting groove 4, which is convenient for installation.

[0026] In this embodiment, if Figure 4 As shown, the surface of the connecting groove 4 is provided with an annular fixing groove 12 along the circumferential direction, and a plurality of positioning balls 11 are evenly distributed in the fixing groove 12. A limiting groove 10 for fixing the positioning balls 11 is provided on the left side wall of the second pipe 2. The positioning balls 11 drive the second pipe 2 to move in the connecting groove 4. When the positioning balls 11 move into the fixing groove 12, the connecting pipe 3 and the second pipe 2 are initially connected.

[0027] In this embodiment, if Figure 4As shown, the inner side wall of the air flow channel 31 is provided with a guide ring 20 that is slidably matched with the movable barrel 16 . The guide ring 20 can guide and limit the movable barrel 16 , thereby effectively improving the movement stability of the movable barrel 16 .

[0028] In this embodiment, if Figure 3 As shown, an external thread 9 is provided on the right outer wall of the connecting pipe 3, and an internal thread 8 matching the external thread 9 is provided on the inner wall of the movable pipe 7. Through the mutual cooperation between the internal thread 8 and the external thread 9, the connecting pipe 3, the movable pipe 7 and the second pipeline 2 can be stably connected.

[0029] In this embodiment, if Figure 4 As shown, a plurality of guide holes 19 are provided on the side wall of the movable tube 16 along the circumferential direction to connect the inner cavity of the movable tube 16 with the air flow channel 31. Through the guide holes 19, the first pipe 1 and the second pipe 2 can be connected under the action of air flow pressure.

[0030] In this embodiment, if Figure 4-5 As shown, a first sealing ring 21 is provided on the outer wall of the second pipe 2 on one side of the fixing ring 5, and a second sealing ring 22 is provided on the bottom of the side of the second pipe 2 located in the connecting groove 4, which has good sealing performance.

[0031] In this embodiment, if Figure 1 As shown, the outer side of the movable tube 7 is provided with anti-slip grooves 23, which improves the grip during operation and makes the connection and disassembly process safer and more convenient.

[0032] In this embodiment, if Figure 1 As shown, a fixing nut 24 is screwed onto the outer wall of one end of the first pipe 1 close to the connecting pipe 3 , and the fixing nut 24 is convenient for limiting the position of the first pipe 1 .

[0033] In this embodiment, if Figure 1As shown, when the first pipe 1 and the second pipe 2 are connected, the second pipe 2 is inserted into the connecting groove 4 in the middle of the connecting pipe 3. During the process of the second pipe 2 entering the connecting groove 4, the positioning ball 11 moves into the fixing groove 12, so that the connecting pipe 3 and the second pipe 2 are preliminarily connected through the mutual cooperation between the positioning ball 11 and the fixing groove 12. The movable pipe 7 is rotated, and the internal thread 8 on the inner wall of the movable pipe 7 is threadedly connected with the external thread 9 on the connecting pipe 3. Therefore, the internal thread 8 and the external thread 9 cooperate with each other, so that the connecting pipe 3 and the second pipe 2 can be stably connected. When there is no airflow inside the pipe, the sealing block 17 contacts the limiting ring 18 under the action of the elastic force of the spring 15, so that the first pipe 1 can be closed by the mutual cooperation between the sealing block 17 and the limiting ring 18. When the airflow passes through the inside of the first pipe 1, the sealing block 17 is separated from the limiting ring 18 under the action of the airflow pressure, so that the airflow inside the first pipe 1 can enter the inside of the second pipe 2 through the guide hole 19. When the sealing performance of the connection between the pipes deteriorates, the air pressure inside the pipe becomes smaller, so that the sealing block 17 can automatically seal the limiting ring 18.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0036] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. A sealing connection device for HVAC decoration pipes, characterized in that: include: A first pipe (1) and a second pipe (2) are arranged opposite to each other, a connecting pipe (3) is fixedly arranged on one side of the first pipe (1), the second pipe (2) is inserted at the end of the connecting pipe (3), and a fixing ring (5) is fixedly arranged on the outer side wall of the second pipe (2); A movable tube (7) is screwed onto the outer wall of the connecting tube (3), and a limiting ring (6) for clamping the fixing ring (5) is provided on the side of the movable tube (7); The connecting tube (3) is provided with a through air flow channel (31), a movable tube (16) is slidably provided in the air flow channel (31), a fixing plate (14) is provided on one side of the air flow channel (31), a plurality of connecting rods (13) are provided on the outer periphery of the fixing plate (14) along the circumferential direction, a spring (15) abutting against the bottom of the tube (16) is provided on one side of the fixing plate (14), a sealing block (17) is fixedly provided on one side of the movable tube (16), and a limiting ring (18) cooperating with the sealing block (17) is provided in the first pipe (1).

2. The sealing connection device for HVAC decoration pipes according to claim 1 is characterized in that: The end of the connecting pipe (3) is provided with a connecting groove (4) matching the second pipe (2), and the second pipe (2) is inserted into the connecting groove (4).

3. The sealing connection device for HVAC decoration pipes according to claim 2 is characterized in that: The surface of the connecting groove (4) is provided with an annular fixing groove (12) along the circumferential direction, a plurality of positioning balls (11) are evenly distributed in the fixing groove (12), and a limiting groove (10) for fixing the positioning balls (11) is provided on the left side wall of the second pipe (2).

4. The sealing connection device for HVAC decoration pipes according to claim 1, characterized in that: The inner side wall of the air flow channel (31) is provided with a guide ring platform (20) which is slidably matched with the movable barrel (16).

5. The sealing connection device for HVAC decoration pipes according to claim 1, characterized in that: An external thread (9) is provided on the right outer wall of the connecting pipe (3), and an internal thread (8) matching the external thread (9) is provided on the inner wall of the movable pipe (7).

6. The sealing connection device for HVAC decoration pipes according to claim 1, characterized in that: A plurality of flow guide holes (19) for connecting the inner cavity of the movable tube (16) with the air flow channel (31) are provided on the side wall of the movable tube (16) along the circumferential direction.

7. The sealing connection device for HVAC decoration pipes according to claim 2 is characterized in that: A first sealing ring (21) is provided on the outer wall of the second pipe (2) on one side of the fixing ring (5), and a second sealing ring (22) is provided on the bottom of the side of the second pipe (2) located in the connecting groove (4).

8. The sealing connection device for HVAC decoration pipes according to claim 1, characterized in that: The outer side of the movable tube (7) is provided with anti-slip grooves (23).

9. The sealing connection device for HVAC decoration pipes according to claim 1, characterized in that: A fixing nut (24) is screwed onto the outer wall of one end of the first pipeline (1) close to the connecting pipe (3).

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