Condenser pipe fitting connecting assembly

By introducing anti-loosening and reinforcing components into the condenser pipe fitting connection assembly, and utilizing a combination structure of nuts, snap plates, snap posts, and elastic rubber pads, the problem of easy loosening of threaded connections is solved, the stability and service life of the connection are improved, and the waterproof performance is enhanced.

CN224214875UActive Publication Date: 2026-05-08ZHEJIANG XINCHENG ZHILENG NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG XINCHENG ZHILENG NEW ENERGY TECH CO LTD
Filing Date
2025-06-23
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The threaded connections of existing condenser pipe fittings are prone to loosening of nuts due to external vibrations, affecting stability and service life.

Method used

It employs anti-loosening and reinforcing components, including nuts, snap plates, snap posts, elastic rubber pads, and housings, to enhance connection stability and prevent nuts from loosening through mechanical snapping and multi-directional force.

Benefits of technology

It improves the stability and service life of condenser tube connection assemblies, enhances waterproof performance and versatility, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a condenser pipe fitting connecting assembly, and belongs to the technical field of pipe fitting connection. Comprising a connector and further comprises anti-loosening assemblies, the anti-loosening assemblies are arranged at the two ends of the connector, each anti-loosening assembly comprises nuts connected to the two ends of the connector and a clamping plate arranged on one side of the corresponding nut, one side of each nut is connected with a clamping column, and a clamping groove is formed in the side, close to the corresponding clamping column, of each clamping plate; the nut is clamped with the clamping plate through the clamping column and the clamping groove; the reinforcing assembly is arranged on the outer side of the anti-loosening assembly and used for fixing the clamping plate; by arranging the anti-loosening assembly, the clamping plate is pushed towards the nut, so that the clamping column on the nut is clamped into the clamping groove of the clamping plate, the clamping plate and the clamping column are matched to form a mechanical clamping structure, additional anti-rotation torque can be provided for the nut, the nut can be prevented from loosening due to vibration, impact or pressure fluctuation, and the anti-loosening effect is good. And the stability and the service life of the clamping sleeve type connecting assembly can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and in particular to a condenser pipe connection assembly. Background Technology

[0002] Condenser pipe fittings are key components in refrigeration systems used to connect internal or external pipes to the condenser, enabling refrigerant flow and system sealing. They typically include pipe fittings, valve assemblies, etc.

[0003] Existing condenser pipe fitting connection assemblies achieve sealing by using ferrules to compress the pipes, eliminating the need for welding. Nuts are used to fix the ferrules to the pipes on the clamps, facilitating disassembly and improving the maintenance efficiency of condenser pipe fittings. Furthermore, the ferrules are inexpensive, which helps reduce maintenance costs.

[0004] However, in practical applications, existing ferrule-type connection assemblies typically use threaded connections and are sealed with sealing rings. However, after long-term use, the friction between the threaded grooves is easily attenuated by external vibrations, causing the nut to loosen, which is not conducive to improving the stability and service life of the ferrule-type connection assembly.

[0005] Therefore, this application provides a condenser tube connection assembly to meet the requirements. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a condenser tube connection assembly.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a condenser tube connection assembly, including a connector, and further comprising:

[0008] An anti-loosening component is provided at both ends of a connector. The anti-loosening component includes nuts connected to both ends of the connector and a snap-fit ​​plate provided on one side of the nuts. A snap-fit ​​post is connected to one side of the nuts. A snap-fit ​​groove is provided on the side of the snap-fit ​​plate near the snap-fit ​​post. The nuts are snapped into the snap-fit ​​plate through the snap-fit ​​post and the snap-fit ​​groove.

[0009] A reinforcement component is placed outside the anti-loosening component and used to fix the snap-fit ​​plate. The reinforcement component includes a housing fixed to one side of the nut, on which an elastic rubber pad is attached. The housing is snapped into the snap-fit ​​plate by the elastic rubber pad.

[0010] Furthermore, a pull rod is fixedly connected to one side of the snap-fit ​​plate.

[0011] The beneficial effect of adopting the above-mentioned further solution is that it facilitates the separation of the snap-fit ​​plate from the snap-fit ​​post, thus providing convenience for subsequent dismantling.

[0012] Furthermore, a retaining sleeve is provided on the inner side of the connector, and one end of the retaining sleeve is connected to a limiting plate. The retaining sleeve is engaged with the connector through the limiting plate.

[0013] The beneficial effect of adopting the above-mentioned further solution is that a limiting groove matching the limiting plate is opened on the connector head, the limiting plate is snapped into the inside of the limiting groove, the angle of the sleeve is limited, and the sleeve always maintains the same angle with the connector head.

[0014] Furthermore, a slider is connected to one end of the sleeve near the card receiving plate, and the card receiving plate is slidably connected to the sleeve via the slider.

[0015] The beneficial effect of adopting the above-mentioned further solution is that it limits the path of one end of the snap-fit ​​plate, ensures that the angle between the snap-fit ​​plate and the connector is consistent, and facilitates the application of force to the nut.

[0016] Furthermore, a sealing ring is provided on the end of the sleeve near the nut.

[0017] The beneficial effect of adopting the above-mentioned further solution is that it reduces the gap between the ferrule and the nut, which helps to improve the waterproof performance.

[0018] Furthermore, the snap-fit ​​slots are arranged in a ring array on the snap-fit ​​plate.

[0019] The beneficial effect of adopting the above-mentioned further solution is that it ensures that the snap-fit ​​post still snaps into the snap-fit ​​slot at different angles, which helps to improve the versatility of the snap-fit ​​plate.

[0020] Furthermore, an anti-slip coating is provided on the side of the outer casing near the snap-fit ​​plate.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the connection between the snap-fit ​​plate and the outer shell is more secure, ensuring the stability of the connection between the snap-fit ​​plate and the outer shell.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1. By setting an anti-loosening component, the snap-fit ​​plate is pushed towards the nut, so that the snap-fit ​​pin on the nut is snapped into the snap-fit ​​groove of the snap-fit ​​plate. This mechanical snap-fit ​​structure formed by the snap-fit ​​plate and the snap-fit ​​pin can provide the nut with additional anti-rotation torque, solve the problem of the nut being easy to loosen due to external vibration, and prevent the nut from loosening due to vibration, impact or pressure fluctuation, which helps to improve the stability and service life of the ferrule connection component.

[0024] 2. By setting up reinforcement components, after the snap-fit ​​plate and snap-fit ​​post are snapped together, the elastic rubber pad will be embedded in the arc-shaped groove of the snap-fit ​​plate. By applying multi-directional force to the snap-fit ​​plate, the connection structure between the snap-fit ​​plate and the snap-fit ​​post is further reinforced, which helps to improve the connection stability between the snap-fit ​​plate and the nut. Attached Figure Description

[0025] Figure 1 This is a front view of a condenser tube connection assembly according to the present invention;

[0026] Figure 2 This is a side sectional view of a condenser tube connection assembly according to the present invention;

[0027] Figure 3 This is a side sectional view of a reinforcing component in a condenser tube connection assembly according to the present invention;

[0028] Figure 4 This is an exploded view of the anti-loosening component in a condenser pipe fitting connection assembly according to this utility model;

[0029] Figure 5 This is a split view of the nut in a condenser tube connection assembly according to this utility model.

[0030] Figure label:

[0031] 1. Connector;

[0032] 2. Anti-loosening component; 21. Nut; 22. Snap-fit ​​plate; 23. Snap-fit ​​post; 24. Sleeve; 25. Limiting plate; 26. Slider; 27. Sealing ring; 28. Pull rod; 29. ​​Snap-fit ​​groove;

[0033] 3. Reinforcing components; 31. Housing; 32. Elastic rubber pad; 33. Anti-slip coating. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] like Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a condenser tube connection assembly, including a connector 1, and further comprising:

[0036] like Figure 1 - Figure 4As shown, the anti-loosening component 2 is placed at both ends of the connector 1. The anti-loosening component 2 includes nuts 21 connected to both ends of the connector 1 and a snap-fit ​​plate 22 provided on one side of the nuts 21. A snap-fit ​​post 23 is connected to one side of the nuts 21. A snap-fit ​​groove 29 is provided on the snap-fit ​​plate 22 near the snap-fit ​​post 23. The nuts 21 are snapped into the snap-fit ​​plate 22 through the snap-fit ​​post 23 and the snap-fit ​​groove 29.

[0037] like Figure 1 - Figure 3 As shown, the reinforcing component 3 is placed outside the anti-loosening component 2 and is used to fix the snap-fit ​​plate 22. The reinforcing component 3 includes a housing 31 fixed to one side of the nut 21. An elastic rubber pad 32 is connected to the housing 31 near it. The housing 31 is snapped into the snap-fit ​​plate 22 through the elastic rubber pad 32. By welding the snap-fit ​​post 23 to the nut 21, the nut 21 is installed at one end of the connector 1 along the threaded groove. Then, the snap-fit ​​plate 22 is pushed towards the nut 21, so that the snap-fit ​​post 23 on the nut 21 snaps into the snap-fit ​​groove 29 on the snap-fit ​​plate 22. The mechanical snap-fit ​​structure of the snap-fit ​​plate 22 and the snap-fit ​​post 23 provides additional resistance to the nut 21. The rotational torque solves the problem that the friction between the threaded grooves is easily attenuated by external vibration, causing the nut 21 to loosen. It prevents the nut 21 from loosening due to vibration, impact or pressure fluctuation, which is beneficial to improving the stability and service life of the ferrule 24 type connection assembly. Furthermore, by welding the outer shell 31 to the outside of the nut 21 and adhering the elastic rubber pad 32 to the outer shell 31, when the snap-fit ​​plate 22 and the snap-fit ​​post 23 snap-fit ​​together, the elastic rubber pad 32 snaps into the arc groove on the snap-fit ​​plate 22, providing the snap-fit ​​plate 22 with forces in different directions, strengthening the connection between the snap-fit ​​plate 22 and the snap-fit ​​post 23, which is beneficial to improving the stability of the connection between the snap-fit ​​plate 22 and the nut 21.

[0038] Furthermore, such as Figure 1 As shown, a pull rod 28 is fixedly connected to one side of the snap-fit ​​plate 22. By welding the pull rod 28 to one side of the snap-fit ​​plate 22, pulling the pull rod 28 can move the snap-fit ​​plate 22, making it easier to separate the snap-fit ​​plate 22 from the snap-fit ​​post 23, thus facilitating subsequent disassembly.

[0039] Furthermore, such as Figure 2 - Figure 4 As shown, a retaining sleeve 24 is provided on the inner side of the connector 1. One end of the retaining sleeve 24 is connected to a limiting plate 25. The retaining sleeve 24 is engaged with the connector 1 through the limiting plate 25. By fitting the retaining sleeve 24 on the outside of the pipe fitting, when the retaining sleeve 24 is installed inside the connector 1, the retaining sleeve 24 squeezes the pipe fitting and cooperates with the connector 1 and nut 21 to seal the pipe fitting. A limiting groove matching the limiting plate 25 is opened on the connector 1. The limiting plate 25 is engaged inside the limiting groove to limit the angle of the retaining sleeve 24, so that the retaining sleeve 24 always maintains the same angle with the connector 1.

[0040] Furthermore, such as Figure 2 - Figure 4 As shown, a slider 26 is connected to one end of the sleeve 24 near the snap-fit ​​plate 22. The snap-fit ​​plate 22 is slidably connected to the sleeve 24 through the slider 26. By opening a groove on the snap-fit ​​plate 22 that matches the slider 26, the snap-fit ​​plate 22 slides on the sleeve 24 through the cylindrical groove of the slider 26, thus limiting the path of one end of the snap-fit ​​plate 22 and ensuring that the angle between the snap-fit ​​plate 22 and the connector 1 is consistent, which facilitates increasing the force on the nut 21.

[0041] Furthermore, such as Figure 2 - Figure 4 As shown, a sealing ring 27 is provided on the end of the ferrule 24 near the nut 21. By installing the sealing ring 27 between the nut 21 and the connector 1, it is beneficial to form a labyrinthine passage inside and reduce the gap between the ferrule 24 and the nut 21, which helps to improve the waterproof performance.

[0042] Furthermore, such as Figure 4 As shown, the snap-fit ​​grooves 29 are arranged in a ring array on the snap-fit ​​plate 22. By changing the angle of the rotating nut 21, the snap-fit ​​post 23 can be aligned with the snap-fit ​​groove 29 at different angles. The nut 21 and the snap-fit ​​plate 22 remain in a snap-fit ​​state, thereby ensuring that the snap-fit ​​post 23 is still snapped with the snap-fit ​​groove 29 at different angles, which helps to improve the versatility of the snap-fit ​​plate 22.

[0043] Furthermore, such as Figure 5 As shown, an anti-slip coating 33 is provided on the side of the housing 31 near the snap-fit ​​plate 22. By spraying the anti-slip coating 33 onto the housing 31, the anti-slip coating 33 increases the friction between the housing 31 and the snap-fit ​​plate 22, making the snap-fit ​​plate 22 and the housing 31 more firmly connected, and ensuring the stability of the connection between the snap-fit ​​plate 22 and the housing 31.

[0044] like Figure 1 - Figure 5 As shown:

[0045] First, install the snap-fit ​​plate 22, nut 21, sealing ring 27, and ferrule 24 onto the pipe fitting in sequence. Place the connector 1 between the two pipe fittings and insert the pipe fitting into the connector 1. Rotate the nut 21, which pushes the sealing ring 27 and ferrule 24 toward the connector 1. The ferrule 24 presses against the pipe fitting to seal it, while the limiting plate 25 engages with the limiting groove on the connector 1. The sealing ring 27 seals the gap between the nut 21 and the connector 1. After the nut 21 is installed, push the snap-fit ​​plate 22. The snap-fit ​​plate 22 slides along the slider 26 through the slide groove, causing the snap-fit ​​post 23 on the nut 21 to engage with the snap-fit ​​plate 22. Inside the snap-fit ​​groove 29, the mechanical snap-fit ​​structure that allows the snap-fit ​​plate 22 and snap-fit ​​post 23 to engage provides the nut 21 with additional anti-rotation torque, which helps improve the stability and service life of the snap-fit ​​sleeve 24 type connection assembly. When the snap-fit ​​plate 22 and snap-fit ​​post 23 are snapped together, the elastic rubber pad 32 snaps into the arc-shaped groove on the snap-fit ​​plate 22, providing the snap-fit ​​plate 22 with forces in different directions, reinforcing the connection between the snap-fit ​​plate 22 and the snap-fit ​​post 23. The friction provided by the anti-slip coating 33 further reinforces the connection between the outer shell 31 and the snap-fit ​​plate 22. When it is necessary to remove it, pull the pull rod 28 to separate the snap-fit ​​plate 22 from the nut 21, and then the nut 21 can be removed.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A condenser tube fitting connection assembly, comprising a connector (1), characterized in that, Also includes: Anti-loosening component (2), the anti-loosening component (2) is placed at both ends of connector (1), the anti-loosening component (2) includes nuts (21) connected to both ends of connector (1) and snap-fit ​​plate (22) provided on one side of nut (21), snap-fit ​​post (23) is connected to one side of nut (21), and snap-fit ​​groove (29) is provided on the side of snap-fit ​​plate (22) near snap-fit ​​post (23), the nut (21) is snapped with snap-fit ​​plate (22) through snap-fit ​​post (23) and snap-fit ​​groove (29); The reinforcement component (3) is placed outside the anti-loosening component (2) and is used to fix the snap-fit ​​plate (22). The reinforcement component (3) includes a housing (31) fixed to one side of the nut (21). An elastic rubber pad (32) is connected close to the housing (31). The housing (31) is snapped to the snap-fit ​​plate (22) through the elastic rubber pad (32).

2. The condenser tube connection assembly according to claim 1, characterized in that, A pull rod (28) is fixedly connected to one side of the snap-fit ​​plate (22).

3. A condenser tube connection assembly according to claim 1, characterized in that, The connector (1) is provided with a retainer (24) on its inner side. One end of the retainer (24) is connected to a limiting plate (25), and the retainer (24) is engaged with the connector (1) through the limiting plate (25).

4. A condenser tube connection assembly according to claim 3, characterized in that, A slider (26) is connected to one end of the sleeve (24) near the snap plate (22), and the snap plate (22) is slidably connected to the sleeve (24) through the slider (26).

5. A condenser tube connection assembly according to claim 3, characterized in that, A sealing ring (27) is provided on the end of the sleeve (24) near the nut (21).

6. A condenser tube connection assembly according to claim 1, characterized in that, The snap-fit ​​slots (29) are arranged in a ring array on the snap-fit ​​plate (22).

7. A condenser tube connection assembly according to claim 1, characterized in that, An anti-slip coating (33) is provided on the side of the outer shell (31) near the snap-fit ​​plate (22).