A ferrule type pipe joint

Abstract

This utility model discloses a ferrule-type pipe fitting, including a fitting body, a steel pipe, a ferrule, a nut, and a conical seal. The fitting body mates with the ferrule and nut via a fitting opening on its right end, and connects to an external valve block via an external threaded port on its left end. The conical seal is fitted onto the steel pipe and the ferrule, with its first annular surface abutting against the fitting opening and conforming to the inner surface of the nut, its conical surface conforming to the outer circumferential surface of the ferrule, and its second annular surface conforming to the outer circumferential surface of the steel pipe. This utility model, through the multi-faceted conforming design of the conical seal, achieves more convenient assembly and more reliable sealing, while extending its service life, and is suitable for various industrial piping systems.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, specifically a compression fitting type pipe connector. Background Technology

[0002] Compression fittings are widely used in industrial piping systems due to their reliable connection and convenient assembly / disassembly. However, existing compression fittings generally suffer from two major problems: first, poor sealing performance, which easily leads to leakage when conveying media (such as hydraulic oil, gas, etc.), affecting system stability; second, cumbersome assembly process, with insufficient fit between components, which not only increases installation difficulty but also shortens the service life of the fitting.

[0003] To address the aforementioned problems, this utility model provides a compression fitting type pipe connector, which solves the issues of poor sealing performance and inconvenient assembly of existing connectors, thereby improving the reliability and practicality of pipeline connections. Utility Model Content

[0004] This utility model proposes a novel compression fitting, which achieves more convenient assembly, more reliable sealing, and longer service life by optimizing the structural design, especially by adding a tapered sealing element with a specific structure.

[0005] A compression fitting, comprising:

[0006] Connector body, used for connection to an external valve block;

[0007] Steel pipe and clamps fixedly installed on the steel pipe are used to connect the joint body for conveying the medium;

[0008] Nuts are used to connect and secure steel pipes and connectors.

[0009] A conical seal is used for sealing pipe joints. It includes a first annular surface on the outer circumference of the right end, a second annular surface on the inner circumference of the left end, and a conical surface in the middle. The conical seal is fitted onto a steel pipe and a ferrule. The conical surface fits against the outer circumference of the ferrule, and the second annular surface fits against the outer circumference of the steel pipe.

[0010] As a preferred embodiment of this utility model, the right end of the connector body is provided with a connector sleeve, the inside of which is a conical cavity and the outer circumferential surface is provided with external threads; the conical cavity is used to mate with the clamping sleeve, and the external threads are used to connect and fix with the nut.

[0011] In a preferred embodiment of this utility model, the left end of the first annular surface of the conical seal abuts against the right end of the connector sleeve, and the outer circumferential surface of the first annular surface fits against the inner surface of the nut.

[0012] As a preferred embodiment of this utility model, the left end of the connector body is provided with an external threaded port for connecting with the valve block.

[0013] As a preferred embodiment of this utility model, the connector body is also equipped with a sealing ring, which is disposed in a groove on the left side of the connector body.

[0014] As a preferred embodiment of this utility model, the conical seal is made of fluororubber and is integrally molded by injection molding.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects:

[0016] The design of the conical seal fitting with the ferrule and steel pipe in this utility model ensures precise positioning and smooth installation of each component during assembly, reducing operational difficulty. The conical seal forms a triple seal by tightly fitting with the joint opening, ferrule, and steel pipe through the first annular surface, conical surface, and second annular surface, effectively preventing media leakage. The tight fit and uniform force distribution of each component reduces component wear caused by friction and leakage, extending the overall service life of the joint. Attached Figure Description

[0017] Figure 1 This is an exploded view of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0019] In the diagram: 1. Connector body; 2. Conical seal; 3. Nut; 4. Steel pipe; 5. Compression fitting; 6. First annular surface; 7. Conical surface; 8. Second annular surface; 9. Connector sleeve; 10. Sealing ring; 11. External threaded port. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1

[0022] like Figure 1 , 2 As shown, a specific embodiment of the compression fitting of this utility model includes:

[0023] The connector body 1 is used to connect with an external valve block (not shown in the figure). Its right end is provided with a connector sleeve 9, the inside of which is a conical cavity (for assembly with the ferrule 5), and the outer circumferential surface is provided with external threads (for threaded connection and fixation with the nut 3). The left end is provided with an external threaded port 11 (for connection with the valve block), and a sealing ring 10 is assembled in the groove on the left side.

[0024] Steel pipe 4 and ferrule 5, the steel pipe 4 is used to transport the medium, and the ferrule 5 is fixedly installed on the steel pipe 4. The two are connected to the connector body 1.

[0025] Nut 3 is used to connect and fix steel pipe 4 and connector body 1, and is locked by engaging with the external thread of connector sleeve 9;

[0026] The conical seal 2, made of fluororubber and integrally molded by injection molding, is used for sealing pipe joints. Its structure includes a first annular surface 6 on the outer circumference of the right end, a second annular surface 8 on the inner circumference of the left end, and a conical surface 7 in the middle. The conical seal 2 is fitted onto the steel pipe 4 and the ferrule 5. The conical surface 7 fits against the outer circumference of the ferrule 5, the second annular surface 8 fits against the outer circumference of the steel pipe 4, the left end of the first annular surface 6 abuts against the right end of the joint sleeve 9, and the outer circumference of the first annular surface 6 fits against the inner surface of the nut 3.

[0027] The working principle of this utility model is as follows: During assembly, the ferrule 5 is fixed on the steel pipe 4 (cut into the surface of the steel pipe 4 to form a compression deformation fixation), the conical seal 2 is installed (so that the conical surface 7 fits the outer circumferential surface of the ferrule 5 and the second annular surface 8 fits the outer circumferential surface of the steel pipe 4), then the combination of the steel pipe 4 and the ferrule 5 is inserted into the conical cavity of the connector body 1, and finally locked by the nut 3 and the external thread of the connector sleeve 9.

[0028] During the tightening process, the nut 3 pushes the conical seal 2 to the left, so that the first annular surface 6 tightly abuts against the right end of the connector sleeve 9. At the same time, the fit between the conical surface 7 and the outer circumference of the sleeve 5, and the second annular surface 8 and the outer circumference of the steel pipe 4 are further improved, forming a multi-dimensional sealing structure. The sealing ring 10 on the left side of the connector body 1 enhances the sealing performance of the connection with the external valve block.

[0029] All components mentioned in this article are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.

[0030] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A compression fitting, characterized in that, include: Connector body (1), used for connection with external valve block; A steel pipe (4) and a clamp (5) fixedly installed on the steel pipe (4) are used to connect the connector body (1) to transport the medium; Nut (3) is used to connect and fix the steel pipe (4) and the joint body (1); A conical seal (2) is used for sealing the pipe joint. It includes a first annular surface (6) on the outer periphery of the right end, a second annular surface (8) on the inner periphery of the left end, and a conical surface (7) in the middle. The conical seal (2) is fitted onto the steel pipe (4) and the ferrule (5). The conical surface (7) is fitted to the outer periphery of the ferrule (5), and the second annular surface (8) is fitted to the outer periphery of the steel pipe (4).

2. The compression fitting according to claim 1, characterized in that: The right end of the connector body (1) is provided with a connector sleeve (9), the inside of which is a conical cavity and the outer circumferential surface is provided with external threads; the conical cavity is used to assemble with the ferrule (5), and the external threads are used to connect and fix with the nut (3) by thread.

3. A compression fitting according to claim 2, characterized in that: The left end of the first annular surface (6) of the conical seal (2) abuts against the right end of the connector sleeve (9), and the outer circumferential surface of the first annular surface (6) fits against the inner surface of the nut (3).

4. A compression fitting according to claim 1, characterized in that: The left end of the connector body (1) is provided with an external threaded port (11) for connecting with the valve block.

5. A compression fitting according to claim 1, characterized in that: The connector body (1) is also equipped with a sealing ring (10), which is located in the groove on the left side of the connector body (1).

6. A compression fitting according to claim 1, characterized in that: The conical seal (2) is made of fluororubber and is integrally molded by injection molding.

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