Automobile air conditioner pipeline joint
By introducing a staggered surrounding design of movable sealing rings and sealing gaskets into the automotive air conditioning pipe joints, the problem of sealing failure in traditional joints is solved, achieving better sealing performance and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGHAO AUTO PARTS (HEFEI) CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional automotive air conditioning pipe joints are prone to aging and deformation after long-term use, leading to seal failure, affecting air conditioning performance and increasing maintenance costs.
The design employs a movable sealing ring and a sealing gasket. The sealing effect is enhanced by the deformation of the movable sealing ring and the staggered surrounding structure of the ring, while the snap-fit structure of the fixed ring facilitates maintenance.
It improves sealing performance, reduces the risk of leaks, simplifies maintenance, and lowers maintenance costs.
Smart Images

Figure CN224229470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning pipe connector technology, specifically an automotive air conditioning pipe connector. Background Technology
[0002] Automotive air conditioning pipe fittings are important components that connect various parts of the air conditioning system, and their sealing performance directly affects the operating efficiency of the air conditioning system. Traditional pipe fittings are prone to poor sealing during installation, leading to refrigerant leakage and affecting air conditioning performance.
[0003] Existing joint structures typically use fixed sealing rings, but these are prone to aging and deformation after long-term use, leading to seal failure. Traditional joints seal by squeezing the end faces from the top and bottom, resulting in poor sealing performance. Once leakage occurs between the joints, the joints need to be replaced, increasing maintenance and repair costs.
[0004] Therefore, there is an urgent need for a new type of automotive air conditioning pipe connector that offers better sealing performance and is easier to maintain. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an automotive air conditioning pipe connector that solves the sealing problem of air conditioning pipe connector connections. By adding a movable sealing ring, the sealing effect can be improved, and the sealing gasket and fixing ring can be disassembled for easy maintenance and repair.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automotive air conditioning pipe connector, comprising a pipe body and a connector, wherein the pipe body and the connector are fixedly connected, a connecting pipe is fixedly attached to the lower end of the connector, a screw is threaded through one side of the connector, the screw is threadedly connected and fixed to the lower end connecting end, an L-shaped movable groove is provided on the inner side of the lower end of the connector, a washer is fixedly attached to the upper end of the movable groove, and a movable sealing ring is movably disposed inside the movable groove, wherein the upper end of the movable sealing ring is L-shaped and is offset and superimposed on the movable groove.
[0007] Furthermore, the lower end of the movable sealing ring can deform to form a seal, and the movable sealing ring is arranged around the lower outer ring of the joint.
[0008] Furthermore, a retaining ring is fixed to the lower outer end of the connector, the lower end of the retaining ring being positioned beyond the lower edge of the connector, and the retaining ring being fitted around the outer side of the lower connecting end.
[0009] Furthermore, a sealing gasket is provided on the inner edge of the lower end of the ring, and the sealing gasket abuts against the outer edge of the lower connecting end and deforms.
[0010] Furthermore, a retaining ring is fixed to the outer end of the sealing gasket, and the retaining ring is engaged with the inner end of the wrapping ring.
[0011] Furthermore, the screw is used to fasten the joint to the lower connection end and provides a stable fixing effect through the threaded connection.
[0012] This utility model provides an automotive air conditioning pipe connector. Compared with the prior art, it has the following advantages:
[0013] This automotive air conditioning pipe connector features a movable sealing ring and gasket that work together to create a clearance during installation, improving the sealing effect. The staggered surround design of the ring and gasket further enhances the sealing at the connection. The snap-fit structure between the fixed ring and the ring makes gasket replacement more convenient and quick. The overall structure is simple and reliable, easy to install and maintain, and suitable for the long-term stable operation of automotive air conditioning systems. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the unfolded structure of the movable sealing ring and screw of this utility model;
[0016] Figure 3 This is a structural schematic diagram of the cross-section of the connector of this utility model;
[0017] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.
[0018] In the diagram: 1. Pipe body; 2. Connector; 3. Connecting pipe; 4. Screw; 5. Encasing ring; 6. Sealing gasket; 7. Fixing ring; 8. Movable groove; 9. Washer; 10. Movable sealing ring. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-4This utility model provides a technical solution: an automotive air conditioning pipe connector; specifically composed of a pipe body 1 and a connector 2, the pipe body 1 and the connector 2 are fixedly connected, a connecting pipe 3 is fixed at the lower end of the connector 2, a screw 4 passes through one side of the connector 2, and is threadedly connected to the lower end of the connector 2 by the screw 4, a movable groove 8 is provided on the inner side of the lower end of the connector 2, the movable groove 8 has an L-shaped cross-section, a washer 9 is fixed at the upper end of the movable groove 8, and a movable sealing ring 10 is movably arranged inside the movable groove 8, the upper end of the movable sealing ring 10 is L-shaped and is offset and superimposed with the movable groove 8, when the connector 2 is fixedly connected to the other end of the air conditioner, the movable sealing ring 10 is squeezed upward when it is pressed, and as the movable sealing ring 10 rises, it abuts against the washer 9, the washer 9 provides a reverse thrust, and the lower end of the movable sealing ring 10 deforms to form a seal, and the movable sealing ring 10 is arranged around the outer ring of the lower end of the connector 2, thus providing a stable seal when the connector 2 is installed, and making the sealing effect of the connection better.
[0021] A retaining ring 5 is fixed to the lower outer side of the connector 2. The lower end of the retaining ring 5 extends beyond the lower edge of the connector 2. The retaining ring 5 is fitted onto the outside of the lower connecting end, and the sealing effect at the connection is further improved by the staggered encirclement. A sealing gasket 6 is provided on the inner edge of the lower end of the retaining ring 5. The sealing gasket 6 abuts against the outer edge of the lower connecting end, and the sealing gasket 6 deforms, thereby achieving a better sealing effect.
[0022] A retaining ring 7 is fixed to the outer end of the sealing gasket 6. The retaining ring 7 is snapped into the inner end of the wrapping ring 5. When replacing the sealing gasket 6, it can be removed by pulling directly. It can also be installed and fixed directly by fixing the retaining ring 7 to the inner end of the wrapping ring 5. The operation is convenient and quick.
[0023] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A car air conditioning pipe connector, comprising a pipe body (1) and a connector (2), characterized in that, The pipe body (1) is fixedly connected to the connector (2). The lower end of the connector (2) is fixed with a connecting pipe (3). A screw (4) is threaded through one side of the connector (2). The screw (4) is threadedly connected to the lower end connection end. The lower end of the connector (2) has an L-shaped movable groove (8) on its inner side. A washer (9) is fixed inside the upper end of the movable groove (8). A movable sealing ring (10) is movably arranged inside the movable groove (8). The upper end of the movable sealing ring (10) is L-shaped and is offset and superimposed with the movable groove (8).
2. The automotive air conditioning pipe connector according to claim 1, characterized in that, The lower end of the movable sealing ring (10) can deform to form a seal, and the movable sealing ring (10) is arranged around the lower outer ring of the connector (2).
3. The automotive air conditioning pipe connector according to claim 2, characterized in that, A ring (5) is fixed to the lower outer end of the connector (2). The lower end of the ring (5) extends beyond the lower edge of the connector (2). The ring (5) is fitted around the outer side of the lower connecting end.
4. The automotive air conditioning pipe connector according to claim 3, characterized in that, A sealing gasket (6) is provided on the inner edge of the lower end of the ring (5), and the sealing gasket (6) abuts against the outer edge of the lower connecting end and deforms.
5. A car air conditioning pipe connector according to claim 4, characterized in that, The outer end of the sealing gasket (6) is fixed with a fixing ring (7), which is engaged with the inner end of the wrapping ring (5).
6. The automotive air conditioning pipe connector according to claim 1, characterized in that, The screw (4) is used to fasten the connector (2) to the lower end connection and provides a stable fixing effect through the threaded connection.