An insulating joint

Abstract

The utility model provides a kind of insulation joint, comprising: first connecting piece, second connecting piece and outer sleeve, first connecting piece, second connecting piece and outer sleeve are inserted and connected between;The outer sleeve is equipped with socket, and the inner edge of the outer sleeve and the outer wall of the socket constitute primary socket structure;Second connecting piece is inserted into outer sleeve, and the outer wall of second connecting piece is inserted into the inner wall of socket and constitutes secondary socket structure, and second connecting piece and outer sleeve are isolated by socket;First connecting piece is inserted into outer sleeve and butts with second connecting piece, and the end surface of first connecting piece and second connecting piece is isolated by sealing element.The utility model can reduce the connecting step of second connecting piece and outer sleeve, simplify the assembly step of first connecting piece, second connecting piece, socket and outer sleeve by using optimization design mode, and improve the assembly efficiency of insulation joint.

Description

Technical Field

[0001] This utility model belongs to the field of insulating joint technology, and in particular relates to an insulating joint. Background Technology

[0002] An insulating joint is a general term for pipe joints that simultaneously possess the sealing performance, strength performance, and insulation performance required for buried steel pipelines, as well as the electrical corrosion protection performance required for such joints. It utilizes insulating components to separate the metal parts at both ends of the pipe, blocking the current conduction path, while sealing components ensure the pipe's tightness and prevent media leakage. A sleeve protects both the insulating and sealing components from external influences.

[0003] Existing insulating joints have complex structures. Integral insulating joints consist of upper and lower tubes, a sleeve, insulating components, sealing components, and an insulating coating. The insulating components and sealing components are sandwiched between the mating ends of the upper and lower tubes of the insulating joint, forming a double-sealed structure with insulating properties. The sleeve firmly seals the insulating components and the upper and lower tubes inside. This requires complex processing procedures, resulting in insufficient production and assembly efficiency for insulating joints. Utility Model Content

[0004] This utility model provides an insulating joint, which is implemented as follows: An insulating joint includes: The first connector, the second connector, and the outer kit are connected by an insertion mechanism; The outer casing is provided with a support plug, and the outer wall of the support plug and the inner edge of the outer casing form a primary socket structure; the second connector is inserted into the outer casing, and the outer wall of the second connector and the inner wall of the support plug form a secondary socket structure; the second connector and the outer casing are isolated by the support plug. The first connector is inserted into the outer sleeve and mates with the second connector. The end faces of the first connector and the second connector are isolated by a seal.

[0005] Preferably, the outer wall of the support component is provided with a stepped first socket, and the inner part of the outer sleeve is provided with a first socket that is adapted to the first socket.

[0006] Preferably, the sealing element includes an annular inner insulating ring and a sealing ring nested outside the inner insulating ring.

[0007] Preferably, the outer wall of the insert is provided with a stepped first socket, and the inner part of the outer sleeve is provided with a first socket that is adapted to the first socket. The insert is inserted into the outer sleeve through the first socket and the first socket.

[0008] Preferably, the end of the second connector is provided with a second socket structure, the side of the insert away from the first socket is provided with a second socket, the second socket is inserted into the second socket, and the second connector and the outer sleeve are isolated by the insert.

[0009] Preferably, the outer diameter of the second connector is smaller than the outer diameter of the first connector, and the inner diameter of the second connector is the same as the inner diameter of the first connector.

[0010] Compared with the prior art, the embodiments of this application have the following main advantages: The insulating joint provided by this utility model adopts a multi-layer nested socket structure design for the second connector, the socket, and the outer sleeve. The first connector abuts against the second connector and presses the second connector onto the socket. By connecting and fixing the first connector and the outer sleeve, this method reduces the connection steps between the second connector and the outer sleeve. By using an optimized design, the assembly steps of the first connector, the second connector, the socket, and the outer sleeve are simplified, thereby improving the assembly efficiency of the insulating joint. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an insulating connector provided by this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of an insulating connector provided by this utility model.

[0013] Figure 3 This is a schematic diagram of the insert structure of an insulating joint provided by this utility model.

[0014] Figure 4 This is a structural schematic diagram of a sealing element in an insulating joint provided by this utility model.

[0015] Figure 5 This is a schematic diagram of the internal structure of an insulating joint using a welding connection method provided by this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. First connector; 2. Second connector; 3. Support insert; 4. Outer casing; 5. Seal; Detailed Implementation

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] This utility model embodiment provides an insulating connector, such as Figures 1-5 As shown, the insulating joint includes: The first connector 1, the second connector 2, and the outer sleeve 4 are connected by an insertion joint; the first connector 1 and the second connector 2 are composed of a welded connection of a steel pipe and a butt-welded forging. The outer casing 4 contains a support element 3. The outer wall of the support element 3 and the inner edge of the outer casing 4 form a primary socket structure. Specifically, the outer wall of the support element 3 has a stepped first insertion port, and the inner part of the outer casing 4 has a first socket that matches the first insertion port. The first insertion port can be machined with reference to a countersunk hole structure, and the first socket adopts a stepped structure to support the support element 3. The second connector 2 is inserted into the outer sleeve 4. The outer wall of the second connector 2 and the inner wall of the support plug 3 form a secondary socket structure. Specifically, the end of the second connector 2 is provided with a second socket structure, and the support plug 3 is provided with a second socket on the side away from the first socket. The second socket is inserted into the second socket, and the second connector 2 and the outer sleeve 4 are isolated by the support plug 3. The support plug 3 is made of insulating material, and the support plug 3 can prevent electrical contact between the second connector 2 and the outer sleeve 4. The first connector 1 is inserted from the other side of the outer kit 4 after the second connector 2 is inserted into the outer kit 4, and the first connector 1 and the second connector 2 are connected inside the outer kit 4. In this application, the second connector 2, the socket 3, and the outer sleeve 4 adopt a multi-layer nested socket structure design, while the first connector 1 abuts against the second connector 2 and presses the second connector 2 onto the socket 3. By connecting and fixing the first connector 1 and the outer sleeve 4, this method reduces the connection steps between the second connector 2 and the outer sleeve 4. By using an optimized design, the assembly steps of the first connector 1, the second connector 2, the socket 3, and the outer sleeve 4 are simplified, and the assembly efficiency of the insulating joint is improved.

[0020] In a preferred embodiment of this invention, the end faces of the first connector 1 and the second connector 2 are isolated by a sealing member 5. The sealing member 5 includes an annular inner insulating ring and a sealing ring nested outside the inner insulating ring. The sealing ring adopts a U-shaped structure and is nested outside the inner insulating ring. The sealing ring and the inner insulating ring form a double-sided socket structure. The front ends of the first connector 1 and the second connector 2 are provided with insertion structures, which can be inserted into and pressed onto the sealing member 5 respectively.

[0021] In a preferred embodiment of this invention, the outer sleeve 4 and the first connector 1 are connected by a tube shrinking process. The connection between the outer sleeve 4 and the first connector 1 can also be further sealed by welding to reduce the entry of external substances into the outer sleeve 4. Specifically, the external environment of the pipeline needs to be treated with double sealing methods, so that the outer sleeve 4 and the first connector 1 form an integral structure. The second connector 2 is pressed into the outer sleeve 4 by the first connector 1. In this application, the outer sleeve 4 and the first connector 1 can be connected by a tube shrinking process, which is to press the outer wall of the outer sleeve 4 to make it fit against the outside of the first connector 1. Alternatively, the outer casing 4 can be welded to the outer wall of the first connector 1 to achieve a connection between the outer casing 4 and the first connector 1; for example... Figure 5 As shown, when the welding connection method is adopted, the inner and outer diameters of the outer sleeve 4 are the same as the outer diameter of the first connector 1. The first connector 1 is also provided with an assembly ring, and the assembly ring and the end face of the outer sleeve 4 are connected by welding.

[0022] In a preferred embodiment of this invention, the outer diameter of the second connector 2 is smaller than the outer diameter of the first connector 1, the inner diameter of the second connector 2 is the same as the inner diameter of the first connector 1, and the inner diameter of the sealing member 5 is slightly larger than the inner diameter of the first connector 1, thereby isolating the second connector 2 from the first connector 1. The sealing member 5 seals the connection between the second connector 2 and the first connector 1, thereby ensuring that no leakage occurs at the connection between the second connector 2 and the first connector 1.

[0023] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0024] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An insulating joint, characterized in that, include: The first connector (1), the second connector (2), and the outer sleeve (4) are connected to the outside of the first connector (1), and the first connector (1) presses the second connector (2) into the inside of the outer sleeve (4). The outer kit (4) is provided with a support plug (3), and the outer wall of the support plug (3) and the inner edge of the outer kit (4) form a primary socket structure; the second connector (2) is inserted into the outer kit (4), and the outer wall of the second connector (2) is inserted into the inner wall of the support plug (3) to form a secondary socket structure; the second connector (2) and the outer kit (4) are isolated by the support plug (3); The first connector (1) is inserted into the outer sleeve (4) and docks with the second connector (2). The end faces of the first connector (1) and the second connector (2) are isolated by a seal (5).

2. An insulating joint as described in claim 1, characterized in that, The outer wall of the insert (3) is provided with a stepped first socket, and the inner wall of the outer sleeve (4) is provided with a first socket that is adapted to the first socket.

3. An insulating joint as described in claim 2, characterized in that, The sealing element (5) includes an annular inner insulating ring and a sealing ring nested outside the inner insulating ring.

4. An insulating joint as described in claim 3, characterized in that, The second connector (2) has a second socket structure at its end. The second socket is inserted into the second socket on the side away from the first socket. The second connector (2) and the outer sleeve (4) are isolated by the second socket (3).

5. An insulating joint as described in claim 4, characterized in that, The outer diameter of the second connector (2) is smaller than the outer diameter of the first connector (1), and the inner diameter of the second connector (2) is the same as the inner diameter of the first connector (1).

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