Compensator with adjusting function

By designing a compensator with adjustment function, multi-directional compensation is achieved using bellows and hinge connecting blocks, the stress concentration problem of traditional compensators under temperature changes and displacement is solved, and the stress distribution and life extension are achieved.

CN223063445UActive Publication Date: 2025-07-04HENGSHUI OULIAN RUBBER & PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202422496063.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-16
Publication Date
2025-07-04
Estimated Expiration
2034-10-16

AI Technical Summary

Technical Problem

When traditional compensators face pipeline systems with large temperature changes or installation errors exceeding the conventional range, they cannot fully meet the compensation needs, resulting in the pipeline withstand great stresses, which may lead to bending, deformation or even rupture.

Method used

A compensator with adjustment function is designed, including a pipe body, a hinge connection and a retractable connecting part. Through the combination of bellows and a hinge connection block, multi-directional compensation for the pipe due to temperature changes and displacement is achieved. The length of the compensator is adjusted by using the telescopic connection and sealing structure to ensure uniform stress distribution.

Benefits of technology

Effectively compensate for the axial and angular displacement of the pipeline, reduce stress concentration, extend the service life of the compensator, and avoid local deformation and damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of compensators, and discloses a compensator with an adjusting function, which comprises a pipe body, a hinge connecting part and an adjusting telescopic connecting part, and the two ends of the pipe body are communicated with connecting end pipes; the hinge connecting parts are arranged at the two ends of the pipe body in a communicating mode. Through the cooperation of the telescopic fixing end block, the telescopic inner pipe, the sealing rubber ring, the first nut fixing block, the threaded connecting block, the threaded rod, the hexagonal head, the threaded rod, the second nut fixing block and the connecting end pipe, the length of the compensator can be flexibly changed according to actual working conditions; the compensator can be kept in the optimal working state under various complex working conditions, the telescopic connecting part can be adjusted according to the actual displacement condition of the pipeline, stress distribution of the compensator in the working process is more reasonable, the problems of stress concentration or excessive stretching and the like caused by too large or too small compensation amount are solved, and the service life of the compensator is prolonged. Therefore, the service life of the compensator is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of compensators, in particular to a compensator with an adjusting function. Background Technique

[0002] In various pipeline transportation systems, whether it is transporting high-temperature fluids (such as hot water or steam in a thermal pipeline) or low-temperature media, due to temperature changes, the pipeline will inevitably undergo thermal expansion and contraction. For example, in a thermal heating system, when hot water flows through the pipeline, the pipeline temperature rises, causing it to elongate; while during the cooling process, the pipeline will contract. If this dimensional change is not reasonably compensated, it will generate huge stresses inside the pipeline, and in severe cases, it may lead to pipeline bending, deformation, or even rupture, affecting the normal operation of the system.

[0003] Although traditional compensators can compensate for pipeline deformation to a certain extent in design, their length adjustment range is usually relatively limited. For some pipeline systems with large temperature changes or installation errors exceeding the normal range, existing compensators may not fully meet the compensation requirements, resulting in the pipeline still bearing large stresses. Content of the Utility Model

[0004] The purpose of the utility model is to provide a compensator with an adjusting function to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A compensator with an adjusting function includes a pipe body, a hinge connection part, and an adjusting telescopic connection part. Connecting end pipes are communicated at both ends of the pipe body; the hinge connection part is communicated at both ends of the pipe body; the adjusting telescopic connection part is communicated at both ends of the hinge connection part.

[0006] Preferably, the hinge connection part specifically includes: a first hinge connection block provided at one end of the pipe body;

[0007] a second hinge connection block provided at the other end of the pipe body; a corrugated pipe communicated at one end of the connecting end pipe. By providing the corrugated pipe, the corrugated pipe can be easily stretched and compressed in the axial direction, which enables the compensator to effectively compensate for the axial thermal expansion and contraction of the pipeline due to temperature changes.

[0008] Preferably, the other end of the corrugated pipe is communicated with a connecting pipe, the other end of the connecting pipe is communicated with a communicating outer pipe, and a fixed end block is fixedly sleeved on the outer wall of the communicating outer pipe. Rectangular installation grooves and through holes are respectively circumferentially and equidistantly opened on the fixed end block.

[0009] Preferably, hinge connection blocks I and II are fixedly installed on the inner walls of the rectangular installation grooves respectively. Through grooves and sliding grooves are formed in both the hinge connection block I and the hinge connection block II. A rectangular fixing block is slidably installed on the inner wall of the through groove. A fixing rod I is fixedly installed at the top of the rectangular fixing block. The hinge connection blocks I and II are provided. When the compensator performs displacement compensation, the hinge connection blocks I and II can evenly distribute stress to the entire structure.

[0010] Preferably, a fixing rod II is fixedly connected to the bottom of the rectangular fixing block. Fixing caps are fixedly installed at the other ends of both the fixing rod I and the fixing rod II. Both the fixing rod I and the fixing rod II are slidably connected to the sliding grooves. Connecting rods are fixedly connected to the outer walls on both sides of the rectangular fixing block. A connecting hinge is movably sleeved on the outer wall of the connecting rod. The connecting hinge is provided. Since the connecting hinge makes the stress distribution of the compensator more uniform during the movement process, this helps to reduce the fatigue damage generated by the compensator during repeated telescoping or deformation.

[0011] Preferably, the adjustable telescopic connecting part specifically includes: a sealing ring fixedly installed at one end of the communicating outer pipe; a telescopic inner pipe slidably installed on the inner wall of the communicating outer pipe; and threaded connection blocks circumferentially and equidistantly fixedly installed on the outer wall of the fixed end block. The sealing ring is provided. When the telescopic inner pipe extends outwards, it can effectively prevent the medium conveyed inside the compensator from leaking outwards.

[0012] Preferably, a sealing rubber ring is fixedly installed at one end of the telescopic inner pipe. The sealing rubber ring is arranged inside the communicating outer pipe. The sealing rubber ring is adapted to the communicating outer pipe. A telescopic fixed end block is fixedly sleeved on the outer wall of the telescopic inner pipe. Circular through openings are circumferentially and equidistantly formed in the telescopic fixed end block.

[0013] Preferably, a nut fixing block I is arranged on one side of the telescopic fixed end block. The threaded connection block is adapted to the through hole. A threaded hole is formed in the threaded connection block. A threaded rod is threadedly connected inside the threaded hole. A hexagonal head is fixed at the other end of the threaded rod. A nut fixing block II is threadedly connected to the outer wall of the threaded rod. The circular through opening is adapted to the threaded rod.

[0014] The utility model provides a compensator with an adjusting function. It has the following beneficial effects:

[0015] (1). Through the cooperation among the second hinge connection block, connecting pipe, corrugated pipe, communicating outer pipe, fixed end block, connecting rod, first fixing rod, connecting hinge, first hinge connection block, fixing cap, through groove, rectangular fixing block, and second fixing rod, the compensator of the present utility model can easily achieve the compensation of angular displacement. In a pipeline system, due to reasons such as temperature changes, bends in the pipeline layout, or vibrations of equipment, angular displacement will occur, enabling the compensator to be adjusted to a certain extent in the horizontal, vertical, and other inclined directions. When the compensator performs displacement compensation, the hinge connection part can evenly transfer the stress to the entire compensator structure. This can avoid stress concentration in a certain local area, thereby reducing the risk of local deformation or damage.

[0016] (2). Through the cooperation among the telescopic fixed end block, telescopic inner pipe, sealing rubber ring, first nut fixing block, threaded connection block, threaded rod, hexagonal head, threaded rod, second nut fixing block, and connecting end pipe, the length of the compensator of the present utility model can be flexibly changed according to the actual working conditions, enabling the compensator to maintain the best working state under various complex working conditions. The telescopic connection part can be adjusted according to the actual displacement of the pipeline, making the stress distribution in the compensator more reasonable during operation, reducing problems such as stress concentration or excessive stretching caused by too large or too small compensation amount, and thus extending the service life of the compensator. Brief Description of the Drawings

[0017] Figure 1 It is the front perspective view of the overall structure of the present utility model;

[0018] Figure 2 It is the partial view of the hinge connection part of the present utility model;

[0019] Figure 3 It is the partial view of the connecting hinge of the present utility model;

[0020] Figure 4 It is the partial view of the telescopic connection part for adjustment of the present utility model.

[0021] In the figure: 1 pipe body, 2 hinge connection part, 211 second hinge connection block, 212 connecting pipe, 213 corrugated pipe, 214 communicating outer pipe, 215 fixed end block, 216 connecting rod, 217 first fixing rod, 218 connecting hinge, 219 first hinge connection block, 2111 fixing cap, 2112 through groove, 2113 rectangular fixing block, 2114 second fixing rod, 3 telescopic connection part for adjustment, 311 telescopic fixed end block, 312 telescopic inner pipe, 313 sealing rubber ring, 314 first nut fixing block, 315 threaded connection block, 316 threaded rod, 317 hexagonal head, 318 threaded rod, 319 second nut fixing block, 4 connecting end pipe. Detailed Description of the Invention

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation of the present utility model.

[0024] Embodiment 1

[0025] A preferred embodiment of a compensator with an adjustment function provided by the present utility model is as Figures 1-4 shown: A compensator with an adjustment function includes a pipe body 1, a hinge connection part 2, and an adjustment telescopic connection part 3. Connecting end pipes 4 are communicatively provided at both ends of the pipe body 1; the hinge connection part 2 is communicatively provided at both ends of the pipe body 1; the adjustment telescopic connection part 3 is communicatively provided at both ends of the hinge connection part 2.

[0026] The hinge connection part 2 specifically includes: a first hinge connection block 219 provided at one end of the pipe body 1; a second hinge connection block 211 provided at the other end of the pipe body 1; and a corrugated pipe 213 communicatively provided at one end of the connecting end pipe 4.

[0027] The other end of the corrugated pipe 213 is communicatively provided with a connecting pipe 212. The other end of the connecting pipe 212 is communicatively provided with a communicating outer pipe 214. A fixed end block 215 is fixedly sleeved on the outer wall of the communicating outer pipe 214. A rectangular installation groove and through holes are respectively and equidistantly provided in a circumferential manner on the fixed end block 215.

[0028] The inner walls of the rectangular installation groove are respectively fixedly installed with a first hinge connection block 219 and a second hinge connection block 211. Through grooves 2112 and sliding grooves are provided on both the first hinge connection block 219 and the second hinge connection block 211. A rectangular fixing block 2113 is slidably installed on the inner wall of the through groove 2112. A first fixing rod 217 is fixedly installed on the top of the rectangular fixing block 2113.

[0029] A fixing rod two 2114 is fixedly connected to the bottom of the rectangular fixing block 2113. Fixing caps 2111 are fixedly installed at the other ends of the fixing rod one 217 and the fixing rod two 2114. Both the fixing rod one 217 and the fixing rod two 2114 are slidably connected to the chute. Connecting rods 216 are fixedly connected to the outer walls on both sides of the rectangular fixing block 2113. Connecting hinges 218 are movably sleeved on the outer walls of the connecting rods 216.

[0030] During the process of this embodiment, when adjusting the length of the device, a tool is used to rotate the hexagonal head 317. When the hexagonal head 317 rotates, it drives the threaded rod 316 to axially move on the threaded connection block 315. When it is necessary to increase the axial compensation amount of the compensator, the hexagonal head 317 can be rotated clockwise to move the threaded rod 316 outwards. On the contrary, rotating the hexagonal head 317 counterclockwise can reduce the compensation amount. The compensation amount of the compensator can be flexibly changed according to the actual working conditions, so that the compensator can maintain the best working state under various complex working conditions. The telescopic connection part can be adjusted according to the actual displacement of the pipeline.

[0031] Embodiment 2

[0032] On the basis of Embodiment 1, a preferred embodiment of a compensator with an adjustment function provided by the present utility model is as Figures 1-4 shown: The telescopic connection part 3 specifically includes: a sealing ring 316 fixedly installed at one end of the communicating outer pipe 214; a telescopic inner pipe 312 slidably installed on the inner wall of the communicating outer pipe 214; and threaded connection blocks 315 circumferentially and equidistantly fixedly installed on the outer wall of the fixed end block 215.

[0033] A sealing rubber ring 313 is fixedly installed at one end of the telescopic inner pipe 312. The sealing rubber ring 313 is arranged inside the communicating outer pipe 214. The sealing rubber ring 313 is adapted to the communicating outer pipe 214. A telescopic fixed end block 311 is fixedly sleeved on the outer wall of the telescopic inner pipe 312. Circular through-holes are circumferentially and equidistantly formed in the telescopic fixed end block 311.

[0034] A nut fixing block one 314 is arranged on one side of the telescopic fixed end block 311. The threaded connection block 315 is adapted to the through-hole. A threaded hole is formed in the threaded connection block 315. A threaded rod 318 is threadedly connected inside the threaded hole. A hexagonal head 317 is fixed at the other end of the threaded rod 318. A nut fixing block two 319 is threadedly connected to the outer wall of the threaded rod 318. The circular through-hole is adapted to the threaded rod 318.

[0035] During the process of this embodiment, when the angle changes due to thermal expansion at the pipe bend, the connecting hinge 218 drives the rectangular fixing block 2113 to slide in the through slot 2112 through the connecting rod 216. When the rectangular fixing block 2113 slides, it drives the first fixing rod 217 and the second fixing rod 2114 to slide in the chute. The connecting hinge 218 can rotate on the connecting rod 216, so that the compensator can adapt to this angular displacement change. When the compensator performs displacement compensation, the hinge connection part can evenly transfer the stress to the entire compensator structure. This can avoid stress concentration in a certain local area, thereby reducing the risk of local deformation or damage.

[0036] Working principle: First, adjust the length of the device through the distance between the pipes. When adjusting the length of the device, rotate the hexagonal head 317 through a tool. When the hexagonal head 317 rotates, it drives the threaded rod 316 to axially move on the threaded connection block 315. When it is necessary to increase the axial length of the compensator, the hexagonal head 317 can be rotated clockwise to move the threaded rod 316 outward. Conversely, rotating the hexagonal head 317 counterclockwise can reduce the length. After the threaded rod 316 is adjusted, drive the telescopic inner tube 312 to slide inside the communicating outer tube 214 by moving the telescopic fixed end block 311. After the telescopic inner tube 312 moves to the appropriate position, rotate the first nut fixing block 314 and the second nut fixing block 319 respectively through tools to fix the first nut fixing block 314 and the second nut fixing block 319 on both sides of the telescopic fixed end block 311 to fix the current position of the telescopic inner tube 312. Then, fix the device between the pipes. When the pipeline system generates axial displacement due to factors such as temperature change, the corrugated pipe can undergo axial telescopic deformation 213. The corrugated pipe has good elasticity and can be freely stretched or compressed within a certain range. When the angle changes due to thermal expansion at the pipe bend, the connecting hinge 218 drives the rectangular fixing block 2113 to slide in the through slot 2112 through the connecting rod 216. When the rectangular fixing block 2113 slides, it drives the first fixing rod 217 and the second fixing rod 2114 to slide in the chute. The connecting hinge 218 can rotate on the connecting rod 216, so that the compensator can adapt to this angular displacement change.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A compensator with an adjustment function, comprising a pipe body (1), a hinge connection part (2), and an adjustable telescopic connection part (3), characterized in that, Both ends of the pipe body (1) are connected and provided with connecting end pipes (4); the hinge connection part (2) is connected and arranged at both ends of the pipe body (1); the adjustable telescopic connection part (3) is connected and arranged at both ends of the hinge connection part (2).

2. The compensator with an adjustment function according to claim 1, characterized in that, The hinge connection part (2) specifically includes: A first hinge connection block (219) arranged at one end of the pipe body (1); A second hinge connection block (211) arranged at the other end of the pipe body (1); A corrugated pipe (213) connected and arranged at one end of the connecting end pipe (4).

3. The compensator with an adjustment function according to claim 2, characterized in that, The other end of the corrugated pipe (213) is connected and provided with a connecting pipe (212), the other end of the connecting pipe (212) is connected and provided with a communicating outer pipe (214), and a fixed end block (215) is fixedly sleeved on the outer wall of the communicating outer pipe (214). Rectangular installation grooves and through holes are respectively and equidistantly arranged in a circumferential manner on the fixed end block (215).

4. The compensator with an adjustment function according to claim 3, characterized in that, The inner walls of the rectangular installation grooves are respectively fixedly installed with a first hinge connection block (219) and a second hinge connection block (211). Through grooves (2112) and sliding grooves are arranged on both the first hinge connection block (219) and the second hinge connection block (211). A rectangular fixing block (2113) is slidably installed on the inner wall of the through groove (2112), and a first fixing rod (217) is fixedly installed at the top of the rectangular fixing block (2113).

5. The compensator with an adjustment function according to claim 4, characterized in that, The bottom of the rectangular fixing block (2113) is fixedly connected with a second fixing rod (2114). Fixed caps (2111) are fixedly installed at the other ends of both the first fixing rod (217) and the second fixing rod (2114). Both the first fixing rod (217) and the second fixing rod (2114) are slidably connected with the sliding groove. Connecting rods (216) are fixedly connected to the outer walls on both sides of the rectangular fixing block (2113), and a connecting hinge (218) is movably sleeved on the outer wall of the connecting rod (216).

6. The compensator with an adjustment function according to claim 1, characterized in that, The adjustable telescopic connection part (3) specifically includes: A sealing ring (316) fixedly installed at one end of the communicating outer pipe (214); A telescopic inner pipe (312) slidably installed on the inner wall of the communicating outer pipe (214); Threaded connection blocks (315) fixedly installed on the outer wall of the fixed end block (215) at equal intervals in a circumferential manner.

7. The compensator with an adjustment function according to claim 6, characterized in that, A sealing rubber ring (313) is fixedly installed at one end of the telescopic inner pipe (312). The sealing rubber ring (313) is arranged inside the communicating outer pipe (214). The sealing rubber ring (313) is adapted to the communicating outer pipe (214). A telescopic fixed end block (311) is fixedly sleeved on the outer wall of the telescopic inner pipe (312). Circular through openings are arranged at equal intervals in a circumferential manner on the telescopic fixed end block (311).

8. The compensator with an adjustment function according to claim 7, characterized in that, One side of the telescopic fixed end block (311) is provided with a first nut fixing block (314). The threaded connection block (315) is adapted to the through hole. A threaded hole is formed in the threaded connection block (315). A threaded rod (318) is threadedly connected inside the threaded hole. The other end of the threaded rod (318) is fixed with a hexagonal head (317). A second nut fixing block (319) is threadedly connected to the outer wall of the threaded rod (318). The circular through port is adapted to the threaded rod (318).

Citation Information

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