Reducing prevention structure of pipeline

Abstract

The utility model provides a hole shrinkage prevention structure of a pipeline, and belongs to the technical field of pipelines. The problem of how to prevent the diameter shrinkage phenomenon of the pipeline is solved. According to the hole shrinkage prevention structure of the pipeline, the pipeline comprises a first pipe body and a second pipe body, the hole shrinkage prevention structure comprises a first supporting ring and a second supporting ring, the supporting ring is located in the first pipe body, the second supporting ring is located at one end of the second pipe body, and the first supporting ring comprises a first annular locating part; the second supporting ring comprises a second annular positioning part, the first pipe body and the second pipe body are connected in an inserted mode, and the circumferential inner wall of the first positioning part and the circumferential outer wall of the second positioning part are clamped. The hole shrinkage prevention structure of the pipeline can prevent the hole shrinkage phenomenon of the pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipelines and relates to a pipeline diameter reduction prevention structure. Background Art

[0002] In today's piping systems, especially plastic piping systems, there are various ways to connect several pipe fittings. Socket-fit welding is one of the many connection methods. It is widely used in the laying of piping systems because of its low difficulty and easy operation.

[0003] Specifically, a socket is provided on one pipe body and a spigot is provided on the other pipe body, and the two pipes are connected through the socket and the spigot and then welded or fused. However, during the above operation, due to the factors of temperature and time of welding or fusion or the instability of the two pipes under uneven force in the socket and spigot type, it is easy to cause the socket and spigot parts of the two pipes to shrink in diameter, which may easily cause the risk of water leakage between the two pipes, affecting the overall laying quality of the pipeline system. Summary of the invention

[0004] The purpose of the utility model is to solve the above problems in the prior art and to propose a pipeline anti-shrinkage structure. The technical problem to be solved by the utility model is: how to prevent the pipeline from shrinking.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a pipeline anti-shrinkage structure, the pipeline includes a pipe body 1 and a pipe body 2, characterized in that the anti-shrinkage structure includes a support ring 1 and a support ring 2, the support ring must be located in the pipe body 1, the support ring 2 is positioned at one end of the pipe body 2, the support ring 1 includes an annular positioning part 1, the support ring 2 includes an annular positioning part 2, the pipe body 1 and the pipe body 2 are plugged together and the circumferential inner wall of the positioning part 1 is clamped with the circumferential outer wall of the positioning part 2.

[0006] The assembly principle of the present application is: to plug the pipe body one and the pipe body two together. Specifically, at least one end of the pipe body one is a socket, and at least one end of the pipe body two is a spigot. The socket and the spigot are matched with each other, so that the pipe body one and the pipe body two are plugged and positioned. On this basis, in order to avoid the problem of uneven circumferential force between the two after the socket connection, a support ring one is installed in the pipe body one, and a support ring two is installed in the pipe body two. Since the support ring one and the support ring two are both made of rigid materials, that is to say, the support ring one can support the circumferential side wall of the pipe body one at the socket, and the support ring two can support the circumferential side wall of the pipe body two at the spigot, so that the support ring one and the support ring two are used to support the pipe body one and the pipe body two when the socket connection is performed. The force applied can avoid the problem of uneven force when the tube body 1 and the tube body 2 are connected. At the same time, during welding or soldering, the support ring 1 has a good retaining effect on the inner wall of the tube body 1 and the support ring 2 has a good retaining effect on the inner wall of the tube body 2. Through their own shape and hardness, they can avoid the deformation of the inner walls of the tube body 1 and the tube body 2 under the heated state, thereby preventing the tube body 1 and the tube body 2 from shrinking in diameter during the assembly process. In addition, during the welding or welding process of the tube body 1 and the tube body 2, the support ring 1 and the support ring 2 are firmly positioned together by means of a clamping connection to ensure the connection strength between the tube body 1 and the tube body 2, which can effectively avoid the problem of uneven wall thickness of the tube body 1 and the tube body 2 due to deformation during the heating process.

[0007] In the above-mentioned anti-shrinkage structure of the pipeline, the positioning part 1 is bent inwardly along the length direction of the pipe body 1. Through this arrangement, when the positioning part 1 is plugged into the positioning part 2, the positioning part 2 inserted into the positioning part 1 can be pressed outwardly to make the positioning part 1 deform inwardly. In this state, the positioning part 1 forms an inward squeezing force, thereby ensuring that the positioning part 1 can firmly clamp the positioning part 2, thereby ensuring the firmness of the connection between the pipe body 1 and the pipe body 2 after plugging.

[0008] In the above-mentioned anti-shrinkage structure of the pipeline, a positioning groove is provided at one end of the pipe body 1 along the circumferential direction, and the support ring 1 also includes an annular clamping portion 1, and an annular abutting edge 1 is formed between the positioning portion 1 and the clamping portion 1, and the circumferential outer wall of the clamping portion is clamped with the circumferential inner wall of the pipe body and the abutting edge 1 abuts against the wall of the positioning groove. When installing the support ring 1, the clamping portion 1 extends into the pipe body 1 to be clamped and positioned in a clamping manner to ensure that the support ring 1 is firmly connected, and at the same time, the abutting edge 1 formed between the positioning portion 1 and the clamping portion 1 abuts against the bottom wall of the positioning groove at one end of the pipe body 1 to limit the support ring 1 and prevent it from being displaced along the length direction of the pipe body 1.

[0009] In the above-mentioned anti-shrinkage structure of the pipeline, the support ring 2 also includes an annular clamping part 2, and an annular abutting edge 2 is formed between the positioning part 2 and the clamping part 2, and the circumferential outer wall of the clamping part 2 is clamped with the circumferential inner wall of the pipe body 2 and the abutting edge 2 is abutted with the inner edge of the second port of the pipe body. When the support ring 2 is installed, the clamping part 2 is inserted into the second pipe body to be clamped and positioned in a clamping manner to ensure that the connection of the support ring 2 is firm, and at the same time, the abutting edge 2 formed between the positioning part 2 and the clamping part 2 is abutted and matched with the inner edge of one end port of the pipe body 2 to limit the support ring 2 and prevent it from being displaced along the length direction of the pipe body 2. In addition, the thickness of the positioning part 2 is thicker than that of the clamping part 2, which can ensure its own structural stability. When the positioning part is clamped, it can avoid being squeezed and deformed by the positioning part 1, thereby ensuring the shape of the second port of the pipe body is maintained.

[0010] In the above-mentioned pipeline anti-shrinkage structure, the support ring 1 and the support ring 2 are both made of stainless steel, which ensures the production cost of the support ring 1 and the support ring 2, while ensuring the structural strength of the two.

[0011] Compared with the existing technology, the anti-shrinkage structure of the pipeline has the following advantages:

[0012] 1. Install support ring 1 in pipe body 1, and install support ring 2 in pipe body 2. When pipe body 1 and pipe body 2 are plugged and positioned, positioning portion 2 on support ring 2 can extend into positioning portion 1 of support ring 1. Positioning portion 1 is squeezed outward by positioning portion 2, so that positioning portion 1 generates an extrusion force that deforms inward to clamp positioning portion 2. Thus, the connection stability of pipe body 1 and pipe body 2 in the socket connection state is ensured by clamping positioning portion 1 and positioning portion 2, and the problem of uneven wall thickness caused by deformation of pipe body 1 and pipe body 2 during subsequent heating is prevented.

[0013] 2. A pair of support rings are used to support the circumferential inner wall of one end of the tube body, and a pair of support rings are used to support the circumferential inner wall of the other end of the tube body, so as to avoid the deformation of the inner walls of the tube body 1 and the tube body 2 under heat, thereby preventing the tube body 1 and the tube body 2 from shrinking in diameter during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the anti-shrinkage structure of the pipeline.

[0015] Figure 2 It is a cross-sectional view of the anti-shrinkage structure of the pipeline and its partial enlarged view.

[0016] Figure 3 It is a structural schematic diagram of support ring one.

[0017] Figure 4It is a schematic diagram of the structure of support ring 2.

[0018] Figure 5 It is a cross-sectional view of tube body 1.

[0019] In the figure, 1, tube body one; 11, positioning groove; 2, tube body two; 3, support ring one; 31, positioning part one; 32, clamping part one; 33, abutment edge one; 4, support ring two; 41, positioning part two; 42, clamping part two; 43, abutment edge two. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] like Figure 1 and Figure 2 As shown, in the anti-shrinkage structure of the pipeline, the pipeline includes a pipe body 1 and a pipe body 2, combined with Figure 5 A positioning groove 11 is provided on the inner wall of one end of the tube body 1 along the circumferential direction, so that one end of the tube body 1 forms a socket, and either end of the tube body 2 is a spigot, and the two are initially positioned by means of a socket-and-spigot connection.

[0022] Combination Figure 3 and Figure 4 The anti-shrinkage structure includes a support ring 1 3 and a support ring 2 4 made of stainless steel material. The support ring 1 3 is specifically formed by an annular positioning portion 1 31 and an annular clamping portion 1 32, and an annular abutting edge 1 33 is formed between the two. The clamping portion 1 32 is bent inwardly along the length direction of the positioning ring 1. The positioning ring 2 is specifically formed by an annular positioning portion 2 41 and an annular clamping portion 2 42, and an annular abutting edge 2 43 is formed between the two. The positioning ring 1 is inserted through the clamping portion 1 32. The support ring 1 is inserted into the tube body 1 and the circumferential outer wall of the clamping part 32 is clamped with the circumferential inner wall of the tube body 1, and at the same time, the abutment edge 33 abuts against the bottom wall of the positioning groove 11 to ensure that the support ring 3 is firmly positioned in the tube body 1; the positioning ring 2 is inserted into the tube body 2 through the clamping part 2 42, so that the circumferential outer wall of the clamping part 2 42 is clamped with the circumferential inner wall at the end of the tube body 2, and at the same time, the abutment edge 43 abuts against the inner edge at the end of the tube body to ensure that the support ring 2 4 is firmly positioned at the end of the tube body 2.

[0023] Assembly principle: workers install support ring 1 3 into tube body 1 and support ring 2 4 into tube body 2 2, and dock tube body 1 with tube body 2 2 while ensuring the stability of the connection between the two. In this process, the circumferential inner wall of the positioning groove 11 in tube body 1 is clamped with the circumferential outer wall of tube body 2 2, thereby preliminarily ensuring the firmness of the connection between the two. At the same time, the positioning part 2 41 on the support ring 2 4 is continuously inserted into the positioning part 1 31 on the support ring 1 3, so that the positioning part 1 31 is continuously squeezed outward. Due to the material characteristics, the positioning part 1 31 also generates an opposite force while deforming outward, so that the positioning part 1 31 clamps the positioning part 2 41. Therefore, while the support ring 1 3 supports the circumferential inner wall of tube body 1 and the support ring 2 4 supports the circumferential inner wall of tube body 2 2, the connection strength of tube body 1 and tube body 2 2 is improved through the connection and cooperation between the support ring 1 3 and the support ring 2 4, so as to avoid the defect of uneven wall thickness caused by excessive deformation of the tube body 1 and the tube body 2 2 when they are heated later.

[0024] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0025] Although the terms such as tube body 1, positioning groove 11, tube body 2, support ring 1, positioning portion 31, clamping portion 32, abutting edge 33, support ring 2, positioning portion 41, clamping portion 42, abutting edge 43 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A pipe diameter reduction prevention structure, the pipe comprising a pipe body 1 (1) and a pipe body 2 (2), characterized in that: The anti-shrinkage structure comprises a support ring 1 (3) and a support ring 2 (4) made of rigid material, wherein the support ring 1 (3) is positioned in the tube body 1 (1), and the support ring 2 (4) is positioned at one end of the tube body 2 (2), the support ring 1 (3) comprises an annular positioning portion 1 (31), and the support ring 2 (4) comprises an annular positioning portion 2 (41), the tube body 1 (1) and the tube body 2 (2) are plugged together and the circumferential inner wall of the positioning portion 1 (31) is clamped with the circumferential outer wall of the positioning portion 2 (41).

2. The pipeline anti-shrinkage structure according to claim 1, characterized in that: The positioning portion 1 (31) is bent inwardly along the length direction of the tube body 1 (1).

3. The pipeline anti-shrinkage structure according to claim 1 or 2, characterized in that: A positioning groove (11) is provided at one end of the tube body (1) along the circumferential direction, and the support ring (3) further comprises an annular clamping portion (32), an annular abutting edge (33) is formed between the positioning portion (31) and the clamping portion (32), the circumferential outer wall of the clamping portion (32) is clamped with the circumferential inner wall of the tube body (1) and the abutting edge (33) is abutted against the groove wall of the positioning groove (11).

4. The pipeline anti-shrinkage structure according to claim 3, characterized in that: The supporting ring 2 (4) also includes an annular clamping portion 2 (42), and an annular abutting edge 2 (43) is formed between the positioning portion 2 (41) and the clamping portion 2 (42). The circumferential outer wall of the clamping portion 2 (42) is clamped with the circumferential inner wall of the tube body 2 (2) and the abutting edge 2 (43) is abutted with the inner edge of the port of the tube body 2 (2).

5. The pipeline anti-shrinkage structure according to claim 4, characterized in that: The support ring 1 (3) and the support ring 2 (4) are both made of stainless steel.

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