A high sealing joint

Abstract

The utility model discloses a kind of high sealing joint, comprising: connector body, the connector body is provided with hexagon nut, the hexagon nut is arranged in the middle part of connector body, the both ends surface of connector body is all set with external thread, the both ends of connector body are all provided with sealing assembly, the sealing assembly includes conical tube, first sealing member and second sealing member, annular mounting groove is set up at the position of conical tube close to conical face, the first sealing member is set in annular mounting groove, the second sealing member is set on the conical face of conical tube.The utility model, by the extrusion of the first sealing member and the inner wall of connecting pipe piece that is set, fill the radial gap between connector body and connecting pipe piece, form a seal, by the extrusion of the second sealing member and the inner wall of connecting pipe piece that is set, form two seals, so that joint has the characteristics of high sealing, and overall structure is relatively simple, and use cost is low.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically a high-sealing connector. Background Technology

[0002] Pipe fittings are crucial connecting components. Their sealing performance directly affects the safety and reliability of the entire system. Common fitting types include threaded fittings, flange fittings, and quick-connect fittings.

[0003] A search revealed that the existing technology, specifically the authorized patent CN223035904U, discloses a high-sealing copper connector, including an external hexagonal nut. The upper outer surface of the external hexagonal nut has an internal threaded groove in the middle, and the lower outer surface of the external hexagonal nut has an external threaded post fixedly installed in the middle. Both the upper and lower ends of the external hexagonal nut are provided with anti-loosening sealing components. Each anti-loosening sealing component includes a guide hole, an annular mounting groove, an annular block, a guide rod, a compression spring, an annular groove, and a third sealing ring. Two sets of anti-loosening sealing components are provided. The annular mounting groove is located on the upper and lower outer surfaces of the external hexagonal nut, and the guide hole is located at one end of the annular mounting groove. This utility model's high-sealing copper connector, through the anti-loosening sealing components, facilitates improved sealing and stability after connection. The second and first sealing rings further enhance the sealing performance.

[0004] However, the above technical solution still has the following shortcomings in use: The device improves the sealing effect by compressing the sealing ring with a spring, but the spring's elasticity gradually decreases over time, resulting in insufficient force on the sealing ring and affecting its sealing performance. To address this, we propose a high-sealing connector to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-sealing connector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-sealing joint, comprising: The connector body has a hexagonal nut located in the middle of the connector body. Both ends of the connector body have external threads. Both ends of the connector body have sealing components, each of which includes a tapered tube, a first sealing element, and a second sealing element. The tapered tube has an annular mounting groove near its tapered surface. The first sealing element is located in the annular mounting groove, and the second sealing element is located on the tapered surface of the tapered tube.

[0007] Preferably, the first sealing element is an O-ring, and the second sealing element is a sealing lip.

[0008] Preferably, a conical ring is installed inside the second sealing element, and the conical ring is fixedly welded to the conical surface of the conical tube.

[0009] Preferably, the connector body, hexagonal nut, and two tapered tubes are integrally cast.

[0010] Preferably, the side of the second seal that contacts the inner wall of the connecting pipe can be machined with fine wavy texture.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention achieves a first seal by pressing and fitting a first sealing element against the inner wall of the connecting pipe, filling the radial gap between the connector body and the connecting pipe. A second sealing element, which is a sealing lip, further enhances the seal by pressing and fitting a second sealing element against the inner wall of the connecting pipe. When a medium is introduced into the connector and pressure is generated, the medium pressure acts on the inner side of the sealing lip, pushing its outer wall to press more tightly against the inner wall of the connecting pipe. Higher pressure results in a stronger seal, further enhancing the sealing effect under high pressure. This gives the connector high sealing performance, and the overall structure is relatively simple with low operating costs. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a high-sealing connector proposed in this utility model; Figure 2 This is a three-dimensional structural diagram of the connection head body and the tapered tube in a high-sealing connector proposed in this utility model; Figure 3 This is a structural diagram showing the connection between the conical ring and the second sealing element in a high-sealing joint proposed in this utility model.

[0013] In the diagram: 1. Connector body; 2. Hexagonal nut; 3. External thread; 4. Sealing assembly; 5. Tapered tube; 6. Annular mounting groove; 7. First seal; 8. Second seal; 9. Tapered ring. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-3This utility model provides a technical solution: a high-sealing connector, comprising: The connector body 1 has a hexagonal nut 2 located in the middle of the connector body 1. Both ends of the connector body 1 have external threads 3. Both ends of the connector body 1 have sealing components 4. The sealing components 4 include a tapered tube 5, a first sealing element 7, and a second sealing element 8. The tapered tube 5 has an annular mounting groove 6 near the tapered surface. The first sealing element 7 is located in the annular mounting groove 6, and the second sealing element 8 is located on the tapered surface of the tapered tube 5.

[0016] The first sealing element 7 is an O-ring, and the second sealing element 8 is a sealing lip.

[0017] A conical ring 9 is installed inside the second sealing element 8. The conical ring 9 is fixedly welded to the conical surface of the conical tube 5. The conical ring 9 facilitates fixing the second sealing element 8 to the conical tube 5.

[0018] The connector body 1, hexagonal nut 2, and two tapered tubes 5 are integrally cast.

[0019] The side of the second seal 8 that contacts the inner wall of the connecting pipe can be machined with fine wavy texture to improve the sealing effect of the second seal 8.

[0020] Working Principle: In use, this utility model connects one end of the connector body 1 to the connecting pipe fitting via a hexagonal nut 2. The first sealing element 7, pressed against the inner wall of the connecting pipe fitting, fills the radial gap between the connector body 1 and the connecting pipe fitting, forming a first seal. A second sealing element 8, also pressed against the inner wall of the connecting pipe fitting, forms a second seal. When a medium is introduced into the connector, generating pressure, the medium pressure acts on the inner side of the sealing lip, pushing its outer wall to press more tightly against the inner wall of the connecting pipe fitting. Higher pressure results in a stronger seal, further enhancing the sealing effect under high pressure. This gives the connector high sealing performance, and the overall structure is relatively simple with low operating costs.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-sealing joint, characterized in that, include: The connector body (1) is provided with a hexagonal nut (2) and the hexagonal nut (2) is located in the middle of the connector body (1). Both ends of the connector body (1) are provided with external threads (3). Both ends of the connector body (1) are provided with sealing components (4). The sealing components (4) include a tapered tube (5), a first sealing element (7) and a second sealing element (8). The tapered tube (5) is provided with an annular mounting groove (6) near the tapered surface. The first sealing element (7) is located in the annular mounting groove (6) and the second sealing element (8) is located on the tapered surface of the tapered tube (5).

2. The high-sealing joint according to claim 1, characterized in that: The first sealing element (7) is an O-ring, and the second sealing element (8) is a sealing lip.

3. The high-sealing joint according to claim 1, characterized in that: A conical ring (9) is installed inside the second sealing element (8), and the conical ring (9) is fixedly welded to the conical surface of the conical tube (5).

4. The high-sealing joint according to claim 1, characterized in that: The connector body (1), hexagonal nut (2) and two tapered tubes (5) are integrally cast.

5. A high-sealing joint according to claim 1, characterized in that: The side of the second seal (8) that contacts the inner wall of the connecting pipe can be machined with fine wavy texture.

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