Ferrule joint

Abstract

The utility model discloses a clamping sleeve connector which comprises a connector body. The clamping sleeve and the end face of the connector body form annular sealing. The nut is arranged outside the connecting position of the connector body and the clamping sleeve in a sleeving mode and used for fixing the connector body and the clamping sleeve. Due to the existence of the plane seal, the steel pipe can be easily installed between the two clamping sleeves in parallel without being inserted in a rotating mode, can also be easily disassembled, and can be conveniently installed in a scene where frequent disassembly and assembly are needed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a ferrule joint. Background Art

[0002] In piping systems, large-diameter pipes are generally connected with flanges, while small-diameter pipes (1 / 8 to 2) are often connected with compression fittings. Compared with flange connections, compression fittings are more convenient to use. Currently, compression fittings on the market are basically plug-in type, that is, the steel pipe needs to be inserted into the compression fitting. If the steel pipe is short or the compression fittings are in a straight line, it is difficult to install the steel pipe because both ends of the steel pipe are inserted into the compression fitting, and the position of the compression fitting is fixed. At the same time, even after installation, disassembly is relatively troublesome. Utility Model Content

[0003] The purpose of the present invention is to solve the above problems and provide a ferrule joint.

[0004] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0005] A ferrule joint comprises a joint body;

[0006] A ferrule, wherein the ferrule forms an annular seal with the end face of the connector body;

[0007] A nut is sleeved on the outside of the connection between the connector body and the ferrule, and is used to fix the connector body and the ferrule.

[0008] As a further description of the above technical solution, one end or both ends of the steel pipe are inserted into the interior of the ferrule.

[0009] As a further description of the above technical solution, the ferrule includes a ferrule body and an inner ring sealing surface, and the inner ring sealing surface forms an annular seal with the outer circumference of the steel pipe.

[0010] As a further description of the above technical solution, threads are provided on the outer circumferential surfaces at both ends of the joint body, and the threads are adapted to the threads inside the nut.

[0011] As a further description of the above technical solution, a through hole is provided in the middle of the ferrule, and the inner diameter of the through hole is adapted to the inner diameter of the joint body and the steel pipe.

[0012] As a further description of the above technical solution, the ferrule is made of either metal or plastic.

[0013] As a further description of the above technical solution, the inner ring sealing surface is a curved portion that converges inward.

[0014] As a further description of the above technical solution, the thickness of the inner ring sealing surface of the ferrule to the ferrule body gradually increases.

[0015] As a further description of the above technical solution, an inclined surface is provided inside the nut, and the inclined surface abuts against the outer edge of the inner ring sealing surface.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. Due to the existence of the flat seal, the utility model makes it possible for the steel pipe to be inserted without rotation and can be easily installed between the two ferrules in parallel, and can also be easily removed, which is convenient for installation in scenes that require frequent disassembly and assembly.

[0018] In order to more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the ferrule joint;

[0020] Figure 2 It is a structural diagram of the assembly of the ferrule joint and the steel pipe;

[0021] Figure 3 It is an enlarged schematic diagram of the fitting part between the inner ring sealing surface of the ferrule and the steel pipe.

[0022] Reference numerals: 1. connector body; 2. ferrule; 201. ferrule body; 202. inner ring sealing surface; 3. nut; 301. inclined surface; 4. steel pipe. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0024] like Figure 1-Figure 3 As shown, in one embodiment, a ferrule joint includes a joint body 1;

[0025] A ferrule 2, wherein the ferrule 2 forms an annular seal with the end face of the connector body 1;

[0026] The nut 3 is sleeved on the outside of the connection between the joint body 1 and the ferrule 2 to fix the joint body 1 and the ferrule 2.

[0027] Among them, when in use, that is, after assembling the steel pipe 4, the steel pipe 4 is inserted into the ferrule 2, and the ferrule 2 forms two seals in the assembled structure. The first is the annular seal formed by the inner ring sealing surface 202 at the end of the ferrule 2 and the outer edge of the steel pipe 4. For details, refer to Figure 3 The second seal is a flat seal formed between the end face of the ferrule 2 and the end face of the connector body 1. Both the first and second seals are formed as the torque of the nut 3 increases, resulting in a large extrusion deformation between the metal sealing surfaces, and a hard seal is formed after biting.

[0028] Through the above technical solution, due to the existence of the flat seal, the steel pipe 4 does not need to be rotated for insertion, and can be easily installed in parallel between the two ferrules 2, and can also be easily removed, which is convenient for installation in scenarios that require frequent disassembly and assembly.

[0029] Optionally, the ferrule 2 includes a ferrule body 201 and an inner ring sealing surface 202, and the inner ring sealing surface 202 forms an annular seal with the outer circumference of the steel pipe 4, wherein the inner ring sealing surface 202 is a curved portion that converges inward, and an inclined surface 301 is provided inside the nut 3, and the inclined surface 301 abuts against the outer edge of the inner ring sealing surface 202. When the nut 3 is tightened, the inner ring sealing surface 202 is squeezed by the inclined surface 301, so that the inner ring sealing surface 202 and the circumferential surface of the steel pipe 4 produce a larger extrusion deformation, thereby forming a hard seal.

[0030] Optionally, the thickness of the inner ring sealing surface 202 of the ferrule 2 to the ferrule body 201 gradually increases, which can enable the inner ring sealing surface 202 to be compressed and deformed while also ensuring the connection strength between it and the ferrule body 201, reducing the risk of breakage.

[0031] Optionally, the ferrule 2 is made of metal or plastic, which can be selected according to actual needs.

[0032] Optionally, threads are provided on the outer circumferences of both ends of the connector body 1 , and the threads are adapted to the threads inside the nut 3 , so that the connector body 1 and the ferrule 2 can be connected via the nut 3 .

[0033] Optionally, a through hole is formed in the middle of the ferrule 2, and the inner diameter of the through hole is adapted to the inner diameter of the connector body 1 and the steel pipe 4, so that the flowing medium of the steel pipe 4 can pass through the through hole normally. Among them, adaptation means that the inner diameter of the opening is slightly smaller than the inner diameter of the connector body 1 and the steel pipe 4.

[0034] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ferrule joint, characterized in that: including a connector body; A ferrule, wherein the ferrule forms an annular seal with the end face of the connector body; A nut is sleeved on the outside of the connection between the connector body and the ferrule, and is used to fix the connector body and the ferrule.

2. The ferrule joint according to claim 1, characterized in that: One end or both ends of the steel pipe are inserted into the interior of the ferrule.

3. The ferrule joint according to claim 1, characterized in that: The ferrule comprises a ferrule body and an inner ring sealing surface, and the inner ring sealing surface forms an annular seal with the outer circumference of the steel pipe.

4. The ferrule joint according to claim 1, characterized in that: The outer circumferences of both ends of the joint body are provided with threads, and the threads are adapted to the threads inside the nut.

5. The ferrule joint according to claim 1, characterized in that: A through hole is provided in the middle of the ferrule, and the inner diameter of the through hole is adapted to the inner diameters of the joint body and the steel pipe.

6. The ferrule joint according to claim 1, characterized in that: The ferrule is made of either metal or plastic.

7. The ferrule joint according to claim 3, characterized in that: The inner ring sealing surface is an inwardly contracted curved portion.

8. The ferrule joint according to claim 1, characterized in that: The thickness of the ferrule from the inner ring sealing surface to the ferrule body gradually increases.

9. The ferrule joint according to claim 3, characterized in that: An inclined surface is provided inside the nut, and the inclined surface abuts against the outer edge of the inner ring sealing surface.

Images