Movable joint with good sealing effect
By setting a top ring and an O-ring on the union, and utilizing the threaded connection and the deformation of the sealing ring to fill the gap, the sealing problem at the union connection is solved, achieving good sealing effect and flowability.
Patent Information
- Application Number
- CN202423140231.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-19
AI Technical Summary
The existing union joints have gaps at the connection points, resulting in poor sealing and easy liquid leakage, which affects production and daily life.
A live joint structure including a first joint, a second joint, and a nut was designed. By setting a top ring and an O-ring on the joint, the threaded connection and the deformation of the sealing ring fill the gap, achieving a tight connection and preventing leakage.
It effectively prevents liquid leakage, improves the sealing effect of the union, and ensures smooth liquid flow.
Smart Images
Figure CN223622459U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of union technology, and in particular relates to a union with good sealing effect. Background Technology
[0002] Unions are common pipe fittings that are easy to install and disassemble. Modern unions connect to pipes at both ends, and waterproof tape is wrapped around the other end of the union before they are connected together with nuts. However, due to gaps at the joints, the sealing effect is poor, which can cause liquid in the pipes to leak from the joints, affecting normal production and daily life. Utility Model Content
[0003] To solve the above problems, this utility model provides a live joint with good sealing effect.
[0004] This utility model is implemented as follows: A swivel joint with good sealing effect includes a first joint and a second joint. The outer wall of the first joint end is provided with a first external thread, and the outer wall of the second joint end is provided with a second external thread. Nuts are fitted on the first joint and the second joint, and the first joint and the second joint are threadedly connected to the nuts to ensure a reliable connection between the first joint, the second joint and the nuts. A top ring is fixedly provided at the end of the first joint with the first external thread. The inner diameter of the top ring is the same as the inner diameter of the first joint to ensure smooth liquid flow. The outer wall of the top ring is arc-shaped to ensure a smooth contact between the top ring and the inner wall of the second joint located in the groove. The top ring makes contact with the first connector. The outer diameter of the top ring on the side closest to the first connector is larger than the outer diameter on the other side, ensuring that the top ring smoothly extends into the groove. The second connector has a groove at one end with a second external thread. The groove corresponds to the position of the top ring and is the same size, ensuring a tight connection between the top ring and the inner wall of the second connector located in the groove. A first annular groove is formed on the inner wall of the second connector at the bottom of the groove. A first O-ring is provided in the first annular groove. The end of the top ring is tightly pressed against the first O-ring. The first O-ring deforms under the pressure of the end of the top ring, filling the gap between the top ring and the inner wall of the second connector to prevent liquid leakage.
[0005] Preferably, a second annular groove is formed on the outer wall of the top ring, and a second O-ring is provided in the second annular groove. The second O-ring deforms under the pressure of the inner wall of the second connector, filling the gap between the top ring and the inner wall of the second connector to prevent liquid leakage.
[0006] Preferably, a third annular groove is formed on the outer wall of the top ring, and a third O-ring is provided in the third annular groove. The third O-ring deforms under the pressure of the inner wall of the second connector, filling the gap between the top ring and the inner wall of the second connector, further preventing liquid leakage.
[0007] Preferably, a first retaining ring is fixedly provided on the first connector, and a second retaining ring is fixedly provided on the second connector. The distance between the first retaining ring and the second retaining ring is the same as the thickness of the nut, which facilitates the limitation of the position of the nut and makes the operation convenient and quick.
[0008] The beneficial effects of this utility model are: a top ring is provided at the end of the first connector, and a groove is provided at the end of the second connector. The groove and the top ring are in the same position and the same size, which ensures a tight connection between the top ring and the inner wall of the second connector located in the groove. The end of the top ring is tightly pressed against the first O-ring. The first O-ring is deformed under the pressure of the end of the top ring, filling the gap between the top ring and the inner wall of the second connector and preventing liquid leakage. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the structure of the first connector and the second connector;
[0011] In the diagram: 1. First connector; 2. Second connector; 3. First external thread; 4. Second external thread; 5. Nut; 6. Top ring; 7. Groove; 8. First annular groove; 9. First O-ring seal; 10. Second annular groove; 11. Second O-ring seal; 12. Third annular groove; 13. Third O-ring seal; 14. First retaining ring; 15. Second retaining ring. Detailed Implementation
[0012] To better understand the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, further illustrates this utility model.
[0013] like Figure 1 and 2The disclosed example of a sealing coupling includes a first connector 1 and a second connector 2. The outer wall of the first connector 1 is provided with a first external thread 3, and the outer wall of the second connector 2 is provided with a second external thread 4. Nuts 5 are fitted onto the first connector 1 and the second connector 2. The first connector 1 and the second connector 2 are threaded together with the nuts 5 to ensure a reliable connection between the first connector 1, the second connector 2 and the nuts 5. A first retaining ring 14 is fixedly provided on the first connector 1, and a second retaining ring 15 is fixedly provided on the second connector 2. The distance between the first retaining ring 14 and the second retaining ring 15 is the same as the thickness of the nuts 5, which facilitates the limitation of the position of the nuts 5 and makes the operation convenient and quick. A top ring 6 is fixedly installed at one end of the first connector 1 with a first external thread 3. The inner diameter of the top ring 6 is the same as that of the first connector 1 to ensure smooth liquid flow. The outer wall of the top ring 6 is arc-shaped to ensure smooth contact between the top ring 6 and the inner wall of the second connector 2 located in the groove 7. The outer diameter of the top ring 6 on the side closer to the first connector 1 is larger than that on the other side to ensure that the top ring 6 smoothly extends into the groove 7. A groove 7 is provided at one end of the second connector 2 with a second external thread 4. The groove 7 is corresponding to the top ring 6 in position and is the same size to ensure a tight connection between the top ring 6 and the inner wall of the second connector 2 located in the groove 7. A first annular groove 8 is provided on the inner wall of the second connector 2 located at the bottom of the groove 7. A first O-ring 9 is provided in the first annular groove 8. The end of the top ring 6 is tightly pressed against the first O-ring 9. The first O-ring 9 deforms under the pressure of the end of the top ring 6, filling the gap between the top ring 6 and the inner wall of the second connector 2 to prevent liquid leakage.
[0014] A second annular groove 10 is formed on the outer wall of the top ring 6, and a second O-ring seal 11 is disposed in the second annular groove 10. The second O-ring seal 11 deforms under the pressure of the inner wall of the second connector 2, filling the gap between the top ring 6 and the inner wall of the second connector 2 to prevent liquid leakage. A third annular groove 12 is formed on the outer wall of the top ring 6, and a third O-ring seal 13 is disposed in the third annular groove 12. The third O-ring seal 13 deforms under the pressure of the inner wall of the second connector 2, filling the gap between the top ring 6 and the inner wall of the second connector 2 to further prevent liquid leakage.
[0015] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A swivel joint with good sealing effect, comprising a first joint and a second joint, wherein the outer wall of the end of the first joint is provided with a first external thread, the outer wall of the end of the second joint is provided with a second external thread, and nuts are fitted onto the first joint and the second joint, the first joint and the second joint being threadedly connected to the nuts, characterized in that, The first connector has a top ring fixedly installed at one end with a first external thread. The inner diameter of the top ring is the same as that of the first connector. The outer wall of the top ring is arc-shaped. The outer diameter of the top ring on the side closer to the first connector is larger than that on the other side. The second connector has a groove at one end with a second external thread. The groove corresponds to the position of the top ring and is the same size. A first annular groove is provided on the inner wall of the second connector at the bottom of the groove. A first O-ring is provided in the first annular groove. The end of the top ring is tightly abutted against the first O-ring.
2. The union with good sealing effect according to claim 1, characterized in that, A second annular groove is provided on the outer wall of the top ring, and a second O-ring is provided in the second annular groove.
3. The sealing effect of the union according to claim 1, characterized in that, A third annular groove is provided on the outer wall of the top ring, and a third O-ring is provided in the third annular groove.
4. The sealing effect of the union according to claim 1, characterized in that, A first retaining ring is fixedly provided on the first connector, and a second retaining ring is fixedly provided on the second connector. The distance between the first retaining ring and the second retaining ring is the same as the thickness of the nut.