Connecting assembly for air conditioner pipeline

Abstract

The utility model relates to the technical field of air conditioner pipeline installation, and discloses a connecting assembly for an air conditioner pipeline, which comprises a connecting pipe, two guide pipes and a sealing assembly, the sealing assembly is arranged on the outer sides of the guide pipes, two ends of the connecting pipe and one end of each guide pipe are fixedly connected with flange plates, a plurality of connecting holes are arranged in the flange plates, and the connecting holes are communicated with the connecting pipe. An anti-loosening assembly is arranged on the inner side of the connecting hole and used for preventing connection between the connecting pipe and the guide pipe from loosening. The anti-loosening assembly comprises an insertion rod. According to the connecting structure, through mutual cooperation of the inserting rod, the movable ring, the nut and other structures, the inserting rod stably penetrates through the two connecting holes, it can be guaranteed that the two flange plates are stably connected, and the stable connecting mode can effectively prevent the connecting pipe and the guide pipe from being loosened due to external force such as vibration in the operation process of an air conditioner after being connected; the sealing performance and reliability of an air-conditioning pipeline system are ensured, and normal operation of the air-conditioning system is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning pipeline installation, in particular to a connecting assembly for air-conditioning pipelines. Background Art

[0002] Air conditioning pipes refer to the piping system used to transport refrigerant in the air conditioning system. These pipes connect the indoor and outdoor units of the air conditioner and are responsible for circulating the refrigerant to complete the air conditioning cycle. Usually, air conditioning pipes are made of copper pipes or aluminum pipes. These pipes connect the compressor, evaporator, condenser and other important air conditioning system components. During the actual installation and use process, the air conditioning pipes are sometimes connected and extended as needed. In some large commercial places or buildings with more complex spatial layouts, the distance between the indoor and outdoor units of the air conditioner is far, and the original pipe length cannot meet the installation requirements. At this time, it is necessary to extend the pipe through professional connection methods.

[0003] In the prior art, when air conditioning pipes are used to extend the pipeline, the internal and external threads of the two pipes are generally connected to achieve the effect of extending the pipeline. However, when the air conditioner is running, its internal driving device will start to cause the air inside the pipeline to vibrate, and then vibrate while transmitting along the pipeline. Therefore, during long-term use, continuous vibration will cause the threads at the pipeline connection to loosen, causing the two pipes to tend to separate, and then the sealing performance of the connection will decrease, thereby causing the refrigerant or condensed water in the air conditioning system to leak, further resulting in the normal operation of the air conditioning system and the decline in the cooling effect. Therefore, the technology in this field proposes a connection component for air conditioning pipes to solve the above problems. Summary of the Invention

[0004] In order to remedy the above deficiencies, the present invention provides a connection assembly for air-conditioning pipes, which aims to improve the problem in the prior art that the connection of the air-conditioning pipes becomes loose due to vibration after long-term use.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a connection assembly for an air conditioning pipe, comprising a connecting pipe, two conduits, and a sealing assembly, characterized in that: the sealing assembly is arranged on the outside of the conduit, both ends of the connecting pipe and one end of the conduit are fixedly connected to flanges, a plurality of connecting holes are formed inside the flanges, and an anti-loosening assembly is provided inside the connecting holes, wherein the anti-loosening assembly is used to prevent the connection between the connecting pipe and the conduit from loosening;

[0006] The anti-loosening assembly includes an insert rod, which is slidably connected to the inner side of the connecting hole, and the outer side of the insert rod is fixedly connected to the limit rod. The outer side of the insert rod is provided with two groups of movable rings, and each group has two movable rings. The adjacent sides of each group of movable rings are fixedly connected with springs, and a limiting groove is provided on the outer side of one of the movable rings in each group. The outer side of the flange is fixedly connected to a limiting block, a sliding groove is provided on the inner side of the connecting hole, and an annular groove is provided inside the connecting hole. The outer side of the insert rod is threadedly connected to two nuts.

[0007] Furthermore, the outer side of the conduit is threadedly connected to the inner side of the connecting pipe, and the outer side of the limiting block is engaged with the inner side of the limiting groove.

[0008] Furthermore, the outer side of the limiting rod is slidably connected to the inner side of the sliding groove, and the outer side of the limiting rod is slidably connected to the inner side of the annular groove.

[0009] Furthermore, one end of the movable ring contacts the outer side of the flange, and the outer side of the nut fits the outer side of the other movable ring.

[0010] Furthermore, the sealing assembly includes a sliding ring, which is sleeved on the outside of the catheter, and two annular grooves are provided on the outer side of the sliding ring.

[0011] Furthermore, a groove is provided on the outer side of the flange, and a second annular groove is provided on the inner side of the groove.

[0012] Furthermore, sealing rings are provided on the inner sides of the annular groove 1 and the annular groove 2, and the sliding ring is engaged with the inner sides of the grooves.

[0013] Furthermore, a raw tape is provided on the outer thread of the conduit, and the outer side of the raw tape is in contact with the inner thread of the connecting pipe.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the present invention, the rod, movable ring, nut and other structures cooperate with each other, so that the rod can be stably inserted into the two connecting holes, which can ensure the stable connection of the two flanges. This stable connection method can effectively prevent the connecting pipe from being loosened by external forces such as vibration during the operation of the air conditioner after being connected to the duct, thereby ensuring the sealing and reliability of the air conditioning pipeline system and guaranteeing the normal operation of the air conditioning system.

[0016] 2. In the present invention, by wrapping the raw tape around the threads of the catheter, as the catheter is rotated and screwed in, the raw tape will fully fill the thread gap, and then cooperate with the sealing ring to tightly fill the gap between the connecting pipe and the outside of the catheter, further improving the sealing performance of the connecting pipe and the outside of the catheter, ensuring that the connecting pipe and the catheter have better sealing performance after being connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a connection assembly for air-conditioning pipes proposed by the present utility model;

[0018] Figure 2 This is a schematic diagram of the conduit structure of a connection assembly for air-conditioning pipes proposed by the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 The present invention is a schematic diagram of a sliding ring structure of a connection assembly for air-conditioning pipes.

[0021] Legend:

[0022] 1. Connecting pipe; 2. Conduit; 3. Flange; 4. Connecting hole; 5. Insert rod; 6. Limit rod; 7. Movable ring; 8. Limit groove; 9. Spring; 10. Limit block; 11. Slide groove; 12. Nut; 13. Sliding ring; 14. Annular groove 1; 15. Groove; 16. Annular groove 2; 17. Sealing ring; 18. Raw tape; 19. Annular groove. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1-Figure 3The utility model provides an embodiment of a connection assembly for air-conditioning pipes, comprising a connecting pipe 1, two conduits 2 and a sealing assembly, characterized in that the sealing assembly is arranged on the outside of the conduit 2, the connecting pipe 1 is used to connect the two conduits 2 so that the air-conditioning pipe can be extended, the two ends of the connecting pipe 1 and one end of the conduit 2 are fixedly connected with a flange 3, which provides a flat connection surface for the pipe connection, and a plurality of connecting holes 4 are opened inside the flange 3 to provide a space for the insertion rod 5 to be installed and slided. The inner side of the connecting hole 4 is provided with an anti-loosening assembly, which is used to prevent the connection between the connecting pipe 1 and the conduit 2 from loosening; the anti-loosening assembly includes an insertion rod 5, which is slidably connected to the inner side of the connecting hole 4, and the outer side of the insertion rod 5 is fixedly connected to the limit rod 6. The outer side of the insertion rod 5 is sleeved with two sets of movable rings 7, and the number of each set of movable rings 7 is two. The adjacent side of each set of movable rings 7 is fixedly connected with a spring 9. The elastic force generated by the spring 9 during compression acts on the movable ring The outer side of the flange 3 is fixed with a limit block 10 to prevent the movable ring 7 from rotating on the insert rod 5 and ensuring the correct compression direction of the spring 9. The inner side of the connecting hole 4 is provided with a slide groove 11, and the inner side of the connecting hole 4 is provided with an annular groove 19. The outer side of the insert rod 5 is threadedly connected with two nuts 12. A sealing assembly is provided on the outside of the conduit 2 to improve the sealing of the connection between the connecting pipe 1 and the conduit 2. The outer side of the conduit 2 is threadedly connected to the inner side of the connecting pipe 1, the outer side of the limit block 10 is engaged with the inner side of the limit groove 8, the outer side of the limit rod 6 is slidably connected to the inner side of the slide groove 11, the outer side of the limit rod 6 is slidably connected to the inner side of the annular groove 19, one end of the movable ring 7 contacts the outer side of the flange 3, and the outer side of the nut 12 fits with the outer side of the other movable ring 7.

[0025] Specifically, after the two flanges 3 are fitted together, the rod 5 is inserted through the two corresponding connecting holes 4. During the insertion of the rod 5, the limiting rod 6 fixed to its outside will slide along the sliding groove 11 inside the connecting holes 4 of the flanges 3. The sliding groove 11 provides an accurate guide for the limiting rod 6, ensuring that the rod 5 can be smoothly inserted into the appropriate position. When the rod 5 is fully inserted, the rod 5 is rotated so that the limiting rod 6 enters the interior of the annular groove 19. At this time, due to the limiting effect of the annular groove 19 on the limiting rod 6, the rod 5 is restricted from axial sliding inside the connecting hole 4, making it unable to easily move within the connecting hole 4, thereby preliminarily achieving the fixation of the rod 5 in the connection position. Then, the two sets of movable rings 7 and springs 9 are respectively put on the outside of the two ends of the insertion rod 5. During the insertion process, it is important to ensure that the limiting grooves 8 on each set of movable rings 7 are accurately engaged with the limiting blocks 10 on the outside of the flange 3. The engagement design of the limiting blocks 10 and the limiting grooves 8 plays an important positioning role. It can ensure that the movable rings 7 are installed in the correct position and prevent the movable rings 7 from unnecessary rotation or displacement during subsequent operations. Finally, tighten the nut 12 on the outside of the insertion rod 5. As the nut 12 is gradually tightened, the nut 12 will squeeze the movable ring 7 that fits it, so that the movable ring 7 moves along the insertion rod 5. Move toward the flange 3. During this process, the spring 9 will be further compressed. The spring 9 will generate a strong rebound force during the compression process. This rebound force is transmitted to the flange 3 through the movable ring 7, making the connection between the insertion rod 5 and the flange 3 tighter. This tight connection can effectively prevent the connecting pipe 1 and the conduit 2 from being loosened due to external vibrations after connection. Through the above series of operations, the entire connection assembly can ensure the stable connection of the two flanges 3, thereby ensuring the sealing and reliability of the air conditioning pipeline system, and providing a solid guarantee for the normal operation of the air conditioning system. Whether during the installation process of the air conditioner or during its long-term operation, this reliable connection method can effectively prevent refrigerant leakage, maintain the efficient and stable operation of the air conditioning system, and improve the performance and life of the air conditioner.

[0026] Reference Figure 2-Figure 4 The sealing assembly includes a sliding ring 13, which is sleeved on the outside of the conduit 2. Two annular grooves 14 are provided on the outside of the sliding ring 13 for placing a sealing ring 17. A groove 15 is provided on the outside of the flange 3, and an annular groove 2 16 is provided on the inside of the groove 15. A sealing ring 17 is provided on the inner side of the annular groove 14 and the annular groove 2 16. The sliding ring 13 is engaged with the inner side of the groove 15. A raw tape 18 is sleeved on the outer thread of the conduit 2. The outer side of the raw tape 18 is in contact with the inner thread of the connecting pipe 1. The raw tape 18 has good sealing and viscosity. When the conduit 2 is threadedly connected to the connecting pipe 1, the raw tape 18 is squeezed between the threads to fill the thread gap, thereby further improving the sealing performance of the connection.

[0027] Specifically, when connecting the air conditioning pipeline, in order to improve the sealing performance of the threaded connection between the connecting pipe 1 and the conduit 2, it is necessary to carefully wrap the raw tape 18 around the threads of the conduit 2. The raw tape 18 has good sealing and viscosity. When one end of the conduit 2 is screwed into the interior of the connecting pipe 1, the raw tape 18 will be squeezed between the threads of the connecting pipe 1 and the conduit 2. As the conduit 2 is rotated and screwed in, the raw tape 18 will fully fill the thread gap, effectively preventing other media in the air conditioning pipeline from leaking from the threaded connection, thereby improving the sealing performance of the threaded connection between the connecting pipe 1 and the conduit 2. At the same time, the sliding ring 13 is sleeved on the outside of the conduit 2. During the connection process, the sliding ring 13 moves together with the conduit 2. When the conduit 2 is connected to the connecting pipe 1, the sealing ring 17 on the sliding ring 13 will contact the outside of the connecting pipe 1 and the conduit 2. The sealing ring 17 is made of a material with good elasticity. At the connection part, the sealing ring 17 is squeezed by the connecting pipe 1 and the conduit 2 and elastically deforms, thereby tightly filling the gap between the connecting pipe 1 and the outside of the conduit 2, further improving the sealing performance of the connecting pipe 1 and the outside of the conduit 2.

[0028] Working principle: First, the raw tape 18 can be wrapped around the thread of the conduit 2, and then one end of the conduit 2 can be screwed into the inside of the connecting pipe 1. The raw tape 18 will increase the sealing of the threaded connection between the connecting pipe 1 and the conduit 2, and the sliding ring 13 cooperates with the sealing ring 17 on the outside of the conduit 2 to further increase the sealing performance of the connecting pipe 1 and the outside of the conduit 2. Then, the insertion rod 5 is passed through the two connecting holes 4. At this time, the limit rod 6 slides into the inside of the slide groove 11, and then the insertion rod 5 is rotated so that the limit rod 6 enters the inside of the annular groove 19. At this time, the insertion rod 5 is limited inside the connecting hole 4 and cannot slide. Then, the two sets of movable rings 7 and the spring 9 are put on the outside of the two ends of the insertion rod 5 so that the limit block 10 is engaged with the limit groove 8. Finally, the nut 12 is tightened on the outside of the insertion rod 5, so that the insertion rod 5 is assembled. This can ensure that the two flanges 3 are connected stably, and can prevent the connecting pipe 1 from loosening due to vibration after being connected to the conduit 2, thereby ensuring the sealing and reliability of the air-conditioning pipeline system and the normal operation of the air-conditioning system.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A connection assembly for an air conditioning pipeline, comprising a connection pipe (1), two conduits (2) and a sealing assembly, characterized in that: The sealing assembly is arranged on the outside of the conduit (2), and both ends of the connecting pipe (1) and one end of the conduit (2) are fixedly connected with flanges (3), a plurality of connecting holes (4) are provided inside the flange (3), and an anti-loosening assembly is provided inside the connecting hole (4), and the anti-loosening assembly is used to prevent the connection between the connecting pipe (1) and the conduit (2) from loosening; The anti-loosening assembly includes an insert rod (5), the insert rod (5) is slidably connected to the inner side of the connecting hole (4), the outer side of the insert rod (5) is fixedly connected to a limiting rod (6), the outer side of the insert rod (5) is provided with two groups of movable rings (7), the number of each group of movable rings (7) is two, the adjacent sides of each group of movable rings (7) are fixedly connected with springs (9), the outer side of one of the movable rings (7) in each group is provided with a limiting groove (8), the outer side of the flange (3) is fixedly connected to a limiting block (10), the inner side of the connecting hole (4) is provided with a sliding groove (11), the interior of the connecting hole (4) is provided with an annular groove (19), and the outer side of the insert rod (5) is threadedly connected to two nuts (12).

2. The connection assembly for air conditioning pipes according to claim 1, characterized in that: The outer side of the conduit (2) is threadedly connected to the inner side of the connecting pipe (1), and the outer side of the limiting block (10) is engaged with the inner side of the limiting groove (8).

3. The connection assembly for air conditioning pipes according to claim 1, characterized in that: The outer side of the limiting rod (6) is slidably connected to the inner side of the sliding groove (11), and the outer side of the limiting rod (6) is slidably connected to the inner side of the annular groove (19).

4. The connection assembly for air conditioning pipes according to claim 1, characterized in that: One end of the movable ring (7) contacts the outer side of the flange (3), and the outer side of the nut (12) fits the outer side of the other movable ring (7).

5. The connection assembly for air conditioning pipes according to claim 1, characterized in that: The sealing assembly comprises a sliding ring (13), which is sleeved on the outside of the conduit (2), and two annular grooves (14) are provided on the outside of the sliding ring (13).

6. The air conditioning pipe connection assembly according to claim 5, characterized in that: A groove (15) is provided on the outer side of the flange (3), and a second annular groove (16) is provided on the inner side of the groove (15).

7. The air conditioning pipe connection assembly according to claim 6, characterized in that: A sealing ring (17) is provided on the inner side of the annular groove 1 (14) and the annular groove 2 (16), and the sliding ring (13) is engaged with the inner side of the groove (15).

8. The air conditioning pipe connection assembly according to claim 7, characterized in that: A raw tape (18) is sleeved on the outer thread of the conduit (2), and the outer side of the raw tape (18) is in contact with the inner thread of the connecting pipe (1).

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