A pipe compensator
By designing a corrugated pipe fitting and an arc-shaped block structure connecting the pipe body in the pipeline compensator, and utilizing threaded grooves and nylon materials, the problems of unstable connection and sealing were solved, achieving stable connection and efficient sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LIANXIN VALVE CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-14
Smart Images

Figure CN224497922U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline connection technology, specifically a pipeline compensator. Background Technology
[0002] Pipeline compensators, also known as pipe expansion joints, expansion joints, or expansion devices, are devices installed in pipeline systems to compensate for axial, lateral, or angular displacement of pipelines caused by factors such as temperature changes, mechanical vibration, and foundation settlement. They can increase the flexibility of the pipeline system, making it more resilient and preventing deformation of the pipeline system when it shifts vertically, horizontally, or left and right.
[0003] Utility model patent application publication number 202021825602.8 discloses a corrugated pipe compensator, including a corrugated pipe fitting. Connecting pieces are fixed at both ends of the corrugated pipe fitting, and a plunger connector is fixed on the side of the two connecting pieces that are far apart from each other. An opening communicating with the corrugated pipe fitting is provided at the central axis of the plunger connector. An external thread for connecting to the pipe is provided on the outer side of the plunger connector near the connecting piece. A sealing ring is fitted on the outer side of the plunger connector, and the outer diameter of the sealing ring is consistent with the inner diameter of the pipe. Multiple arrayed limiting mechanisms are provided between the connecting pieces. Multiple arrayed connecting ears are fixed on the outer side of the connecting pieces. A pull rod is provided between the connecting ears on two connecting pieces, and both ends of the pull rod extend to the outer side of the two sets of connecting ears. The plunger-threaded connection method makes the assembly and disassembly of the compensator and the pipe more convenient, ensures a stable connection, and prevents leakage.
[0004] As can be seen from the above patent, there is a pipeline compensator that has drawbacks in actual use. The most obvious drawback is that the current compensator is usually fixed to the pipeline using a flange. When the compensator and the pipeline are subjected to vibration or compression for a long time, the connection between the compensator and the pipeline is prone to instability, which affects the sealing performance of the compensator and reduces the efficiency of the pipeline compensator. Therefore, we propose a pipeline compensator. Utility Model Content
[0005] The purpose of this invention is to provide a pipeline compensator to solve the problems mentioned in the background art.
[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0007] Specifically, this application describes a pipeline compensator comprising: a corrugated pipe fitting and a pipeline body, wherein the pipeline body is located at one end of the corrugated pipe fitting, and mounting rings are fixedly connected to both ends of the corrugated pipe fitting. A connecting ring is rotatably connected to the side wall of the mounting ring, and a first mounting block is fixedly connected to both ends of the side wall of the connecting ring. A first arc-shaped block is fixedly connected to one end of the first mounting block.
[0008] A fixing ring is fixedly connected to one end of the main body of the pipe. A second mounting block is fixedly connected to both ends of the side wall of the fixing ring. A second arc-shaped block is fixedly connected to one end of the second mounting block. The side walls of the first mounting block and the second mounting block are provided with mounting grooves. The first arc-shaped block and the second arc-shaped block are used in conjunction with the two mounting grooves respectively.
[0009] As a preferred technical solution of this application, the corrugated pipe fitting has ear plates fixedly connected to both ends of its sidewall, and a connecting rod is threaded between the two ear plates.
[0010] As a preferred technical solution of this application, a rotating ring is fixedly connected to the inner side wall of the connecting ring, and an annular groove matching the rotating ring is opened on one side wall of the fixed ring.
[0011] As a preferred technical solution of this application, both the inner wall of the rotating ring and the inner wall of the annular groove are provided with threaded grooves.
[0012] As a preferred technical solution of this application, both the first arc-shaped block and the second arc-shaped block are made of nylon elastic material, and the ends of the first arc-shaped block and the second arc-shaped block are opened as bevels.
[0013] As a preferred technical solution of this application, both the mounting ring and the fixing ring have screw holes on their sidewalls.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In the scheme of this application:
[0016] 1. By setting a second mounting block, since the first mounting block has an installation groove, which works in conjunction with the second arc-shaped block, and the fixing ring also has a second mounting block, which works in conjunction with the first arc-shaped block, when installing the corrugated pipe fittings and the main body of the pipe, the first mounting block drives the first arc-shaped block to rotate. At this time, the first mounting block drives the first arc-shaped block to rotate on the mounting ring through the connecting ring, and the first arc-shaped block rotates into the second mounting block, and the second arc-shaped block rotates into the first mounting block, thereby improving the installation stability between the compensator and the pipeline and increasing the efficiency of the pipeline compensator.
[0017] 2. By setting a rotating ring on the inner side of the connecting ring and opening an annular groove on one side of the fixed ring, and both the rotating ring and the annular groove are provided with threaded grooves, the connecting ring can be screwed into the annular groove, thereby improving the sealing performance of the compensator. Attached Figure Description
[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0019] In the attached diagram:
[0020] Figure 1 A perspective view of a pipeline compensator provided in this application;
[0021] Figure 2 A pipeline main structure diagram of a pipeline compensator provided in this application;
[0022] Figure 3 A structural diagram of a corrugated pipe fitting for a pipeline compensator provided in this application.
[0023] In the figure: 100, corrugated pipe fitting; 110, ear plate; 120, connecting rod; 130, mounting ring; 140, rotating ring; 141, connecting ring; 150, first mounting block; 151, first arc-shaped block; 200, pipe body; 210, fixing ring; 220, annular groove; 230, second mounting block; 240, second arc-shaped block. Detailed Implementation
[0024] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-3A pipeline compensator includes: a corrugated pipe fitting 100 and a pipeline body 200. The corrugated pipe fitting 100 is used to buffer the pressure between the pipeline bodies 200. The pipeline body 200 is located at one end of the corrugated pipe fitting 100. Mounting rings 130 are fixedly connected to both ends of the corrugated pipe fitting 100. The mounting rings 130 are used to connect with fixed rings 210. A connecting ring 141 is rotatably connected to the side wall of the mounting ring 130. The connecting ring 141 is used to rotate a first mounting block 150 and a rotating ring 140. First mounting blocks 150 are fixedly connected to both ends of the side wall of the connecting ring 141. The first mounting blocks 150 are used to drive a first arc-shaped block 151 to rotate. A first arc-shaped block 151 is fixedly connected to one end of the first mounting block 150. 51; A fixing ring 210 is fixedly connected to one end of the pipe body 200. A second mounting block 230 is fixedly connected to both ends of the side wall of the fixing ring 210. A second arc-shaped block 240 is fixedly connected to one end of the second mounting block 230. The side walls of the first mounting block 150 and the second mounting block 230 are provided with mounting grooves. The first arc-shaped block 151 and the second arc-shaped block 240 are used in conjunction with the two mounting grooves respectively. Specifically, when the first mounting block 150 drives the first arc-shaped block 151 to rotate, the first arc-shaped block 151 rotates into the mounting groove on the second arc-shaped block 240, and the second arc-shaped block 240 rotates into the mounting groove on the first mounting block 150, thereby realizing the connection between the mounting ring 130 and the fixing ring 210.
[0026] Please see Figure 1 The corrugated pipe fitting 100 has ear plates 110 fixedly connected to both ends of its side wall, and a connecting rod 120 is threaded between the two ear plates 110. The ear plates 110 and the connecting rod 120 facilitate the installation of the corrugated pipe fitting 100.
[0027] Please see Figure 1-3 A rotating ring 140 is fixedly connected to the inner side wall of the connecting ring 141. An annular groove 220 matching the rotating ring 140 is opened on one side wall of the fixed ring 210. The rotating ring 140 is rotated by the connecting ring 141 and the rotating ring 140 is screwed into the annular groove 220.
[0028] Please see Figure 1-3 Both the inner wall of the rotating ring 140 and the inner wall of the annular groove 220 are provided with threaded grooves. Specifically, when the rotating ring 140 is screwed into the annular groove 220, the mounting ring 130 and the fixed ring 210 will approach each other. At this time, the mounting groove on the first mounting block 150 contacts the inclined surface on the first arc block 151, so that the first arc block 151 gradually enters into the mounting groove, and the first arc block 151 applies an elastic force to the first mounting block 150, which facilitates the connection between the mounting ring 130 and the fixed ring 210.
[0029] Please see Figure 1-3The first arc-shaped block 151 and the second arc-shaped block 240 are both made of nylon elastic material, and the ends of the first arc-shaped block 151 and the second arc-shaped block 240 are opened as bevels. The first arc-shaped block 151 and the second arc-shaped block 240 can be connected to the first mounting block 150 and the second mounting block 230 by beveling the first arc-shaped block 151 and the second arc-shaped block 240.
[0030] Please see Figure 1-3 Both the mounting ring 130 and the fixing ring 210 have screw holes on their side walls. By opening screw holes on the mounting ring 130 and the fixing ring 210, it is easy to fix them with bolts.
[0031] Specifically, when using this device, firstly, the first mounting block 150 on the corrugated pipe fitting 100 is rotated. The first mounting block 150 drives the first arc-shaped block 151 to rotate, which pushes the corrugated pipe fitting 100 closer to the pipe body 200 and makes the rotating ring 140 closer to the annular groove 220. Then, the first mounting block 150 is rotated, which drives the first arc-shaped block 151 to rotate and make the first arc-shaped block 151 rotate into the mounting groove on the second mounting block 230. The first mounting block 150 moves the second arc-shaped block 240 into the first mounting block 150 through the inclined surface on the second arc-shaped block 240. At the same time, the rotating ring 140 is screwed into the annular groove 220 through the threaded groove, realizing the connection between the mounting ring 130 and the fixed ring 210 on the corrugated pipe fitting 100, thus completing the use.
[0032] 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.
[0033] 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 pipeline compensator, comprising: A corrugated pipe fitting (100) and a pipe body (200), characterized in that the pipe body (200) is located at one end of the corrugated pipe fitting (100), and mounting rings (130) are fixedly connected to both ends of the corrugated pipe fitting (100). A connecting ring (141) is rotatably connected to the side wall of the mounting ring (130), and a first mounting block (150) is fixedly connected to both ends of the side wall of the connecting ring (141). A first arc-shaped block (151) is fixedly connected to one end of the first mounting block (150). One end of the pipe body (200) is fixedly connected to a fixing ring (210). Both ends of the side wall of the fixing ring (210) are fixedly connected to a second mounting block (230). One end of the second mounting block (230) is fixedly connected to a second arc-shaped block (240). The side walls of the first mounting block (150) and the second mounting block (230) are provided with mounting grooves. The first arc-shaped block (151) and the second arc-shaped block (240) are used in conjunction with the two mounting grooves respectively.
2. A pipeline compensator according to claim 1, characterized in that: The corrugated pipe fitting (100) has ear plates (110) fixedly connected to both ends of its side wall, and a connecting rod (120) is threaded between the two ear plates (110).
3. A pipeline compensator according to claim 1, characterized in that: The inner wall of the connecting ring (141) is fixedly connected to a rotating ring (140), and one side wall of the fixed ring (210) is provided with an annular groove (220) that matches the rotating ring (140).
4. A pipeline compensator according to claim 3, characterized in that: The inner wall of the rotating ring (140) and the inner wall of the annular groove (220) are both provided with threaded grooves.
5. A pipeline compensator according to claim 1, characterized in that: The first arc-shaped block (151) and the second arc-shaped block (240) are both made of nylon elastic material, and the ends of the first arc-shaped block (151) and the second arc-shaped block (240) are opened as bevels.
6. A pipeline compensator according to claim 1, characterized in that: Both the mounting ring (130) and the fixing ring (210) have screw holes on their side walls.