A non-metallic compensator that facilitates skin replacement
By setting fixing and limiting mechanisms on the non-metallic compensator, the disassembly process of the skin is simplified, the installation stability of the skin is improved, the problem of low skin disassembly and assembly efficiency in the prior art is solved, and the use efficiency and service life of the non-metallic compensator are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANSHENG THERMAL PIPELINE (JIANGSU) CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-03
AI Technical Summary
The existing annular non-metallic compensator has low efficiency in disassembling and assembling the skin, requiring tools to unscrew the bolts one by one, which is inconvenient.
A fixing mechanism is adopted, including an annular groove, a semi-circular plate and an arc plate. By turning the screw block, the threaded rod is driven to move the abutment block away from the semi-circular plate. The semi-circular plate is reset by a spring to disengage from the limiting hole, simplifying the disassembly process of the skin. The limiting mechanism ensures the stable installation of the skin through the limiting block and the connecting rod.
This significantly improves the efficiency of skin assembly and disassembly, ensures the stability of skin installation, and enhances the operating efficiency and service life of non-metallic compensators.
Smart Images

Figure CN224454036U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of non-metallic compensator technology, specifically a non-metallic compensator with a convenient skin replacement. Background Technology
[0002] The elastic element that constitutes the main working body of the non-metallic compensator is made of non-metallic material, usually fiber fabric, so it is also called a fabric compensator. There is also a rubber material. Except in cases where it cannot meet the usage conditions under ultra-high temperature conditions, this material can replace fiber fabric in various other working conditions.
[0003] In existing annular non-metallic compensators, the skin is usually fixed to the fixing ring on the annular non-metallic compensator with bolts, which is very inconvenient. When the skin needs to be disassembled and replaced, the staff needs to use additional tools to unscrew the bolts one by one to complete the disassembly, which greatly reduces the efficiency of skin disassembly and assembly and is not convenient to use. Utility Model Content
[0004] The purpose of this invention is to provide a non-metallic compensator that facilitates skin replacement, thereby solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A non-metallic compensator with easily replaceable skin includes: a non-metallic compensator body, a flange, a skin, and a fixing mechanism. The flange is disposed at the end of the non-metallic compensator body, the skin is sleeved on the outer wall of the non-metallic compensator body, and the fixing mechanism is disposed on the flange. The fixing mechanism includes an annular groove, a first semicircular plate, a second semicircular plate, and an arc-shaped plate. The annular groove is formed on the flange. The first semicircular plate is slidably connected inside the annular groove. The second semicircular plate is fixedly connected to the bottom of the first semicircular plate and abuts against the outer wall of the skin. A limiting hole is provided on the skin. The arc-shaped plate is fixedly connected to the inner wall of the second semicircular plate and inserted into the limiting hole.
[0007] Preferably, a limiting rod is fixedly connected inside the annular groove. The limiting rod passes through the semicircular plate and is slidably connected to it. The limiting rod is provided so that the semicircular plate can slide horizontally inside the annular groove.
[0008] Preferably, the outer wall of the limiting rod is fitted with a spring, and the two ends of the spring are fixedly connected to the inner wall of the annular groove and the outer wall of the semicircular plate, respectively. The spring is set to drive the semicircular plate to reset. After the skin is installed, the spring is in a stretched state.
[0009] Preferably, the flange is threaded with a threaded rod, one end of which is rotatably connected to an abutment block via a bearing, and the other end is fixedly connected to a screw block. The abutment block abuts against the outer wall of the semicircular plate, and the threaded rod can drive the abutment block to move horizontally.
[0010] Preferably, a limiting mechanism is provided on the second semicircular plate. The limiting mechanism includes a first fixing block, a connecting rod, a second fixing block, a groove, and a limiting block. The first fixing block and the second fixing block are both fixedly connected to the outer wall of the second semicircular plate. The connecting rod is fixedly connected to the outer wall of the first fixing block and slides through the second fixing block. The groove is formed on the connecting rod, and the limiting block is slidably connected inside the groove.
[0011] Preferably, a second spring is provided inside the groove, and the two ends of the second spring are fixedly connected to the outer wall of the limiting block and the inner wall of the groove, respectively. By providing the second spring, the limiting block can be driven to reset.
[0012] Preferably, a sealing ring is fixedly connected to the flange, and sealing grooves are provided at the top and bottom of the non-metallic compensator body, with the sealing ring inserted into the inside of the sealing groove. Cat ears are welded to the flange, and threaded rods are provided on the cat ears, with nuts provided on the threaded rods. This can fix the flanges at the top and bottom of the non-metallic compensator body into a whole. The sealing grooves and sealing rings are provided to improve the sealing performance between the flange and the non-metallic compensator body.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. By setting a fixing mechanism, the screw block is turned to drive the threaded rod to rotate, so that the abutment block moves away from the first semicircular plate. The second semicircular plate is reset under the action of the first spring, which drives the arc plate to disengage from the limit hole, so that the flange can be removed and the skin can be disassembled. The operation is simple and quick, which greatly improves the efficiency of skin disassembly and assembly.
[0015] 2. By setting a limiting mechanism, when installing the skin, after the skin is fitted and the arc plate is inserted into the limiting hole, the two semicircular plates are combined into a ring to fix the skin. During the combination process, the limiting block is pressed into the groove. After the combination is completed, the limiting block is reset to prevent the connecting rod from disengaging from the fixing block, ensuring that the two semicircular plates are stably fitted on the outer wall of the skin, which enhances the stability of the skin installation and ensures the normal operation and service life of the non-metallic compensator. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a partial structural schematic diagram of the fixing mechanism of this utility model;
[0018] Figure 3This is a cross-sectional view of the present invention;
[0019] Figure 4 This is an enlarged view of A of this utility model;
[0020] Figure 5 This is a sectional view of the connecting rod of this utility model;
[0021] Figure 6 This is an enlarged view of utility model B.
[0022] In the diagram: 1. Non-metallic compensator body; 2. Flange; 3. Skin; 4. Fixing mechanism; 41. Annular groove; 42. Semicircular plate one; 43. Semicircular plate two; 44. Arc plate; 45. Limiting rod; 46. Spring one; 47. Threaded rod; 48. Abutment block; 49. Tightening block; 5. Limiting mechanism; 51. Fixing block one; 52. Connecting rod; 53. Fixing block two; 54. Groove; 55. Spring two; 56. Limiting block. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figure 1-4As shown, a non-metallic compensator with easily replaceable skin includes a non-metallic compensator body 1, a flange 2, a skin 3, and a fixing mechanism 4. The flange 2 is located at the end of the non-metallic compensator body 1, the skin 3 is fitted onto the outer wall of the non-metallic compensator body 1, and the fixing mechanism 4 is located on the flange 2. The fixing mechanism 4 includes an annular groove 41, a first semicircular plate 42, a second semicircular plate 43, and an arc-shaped plate 44. The annular groove 41 is formed on the flange 2, the first semicircular plate 42 is slidably connected inside the annular groove 41, and the second semicircular plate 43 is fixedly connected. A fixed connection is made to the bottom of the semicircular plate 42 and abuts against the outer wall of the skin 3. The skin 3 is provided with a limiting hole. The arc plate 44 is fixedly connected to the inner wall of the semicircular plate 43 and inserted into the limiting hole. A limiting rod 45 is fixedly connected inside the annular groove 41. The limiting rod 45 passes through the semicircular plate 42 and is slidably connected to it. The limiting rod 45 is provided to allow the semicircular plate 42 to slide horizontally inside the annular groove 41. A spring 46 is sleeved on the outer wall of the limiting rod 45, and the two springs 46 are... The ends are respectively fixedly connected to the inner wall of the annular groove 41 and the outer wall of the semicircular plate 42. A spring 46 is provided to reset the semicircular plate 42. After the skin 3 is installed, the spring 46 is in a stretched state. A threaded rod 47 is threadedly connected to the flange 2. One end of the threaded rod 47 is rotatably connected to an abutment block 48 via a bearing, and the other end is fixedly connected to a screw block 49. The abutment block 48 abuts against the outer wall of the semicircular plate 42. The threaded rod 47 can drive the abutment block 48 to move horizontally. A screw block 49 is fixedly connected to the flange 2. The sealing ring has sealing grooves at the top and bottom of the non-metallic compensator body 1, and the sealing ring is inserted into the sealing groove. Cat ears are welded on the flange 2, and threaded rods are set on the cat ears. Nuts are set on the threaded rods, which can fix the flange 2 at the top and bottom of the non-metallic compensator body 1 to form a whole. The sealing grooves and sealing rings are set to improve the sealing between the flange 2 and the non-metallic compensator body 1. The flange 2 can be removed from the threaded rod by unscrewing the nut on the threaded rod, so that the skin 3 can be disassembled and assembled.
[0025] Specifically, by turning the screw block 49, the threaded rod 47 is rotated. The threaded rod 47 drives the abutment block 48 away from the semicircular plate 42, so that the semicircular plate 43 is reset under the action of the spring 46, causing the arc plate 44 to disengage from the limiting hole. Then, the flange 2 can be removed to disassemble and replace the skin 3.
[0026] like Figure 5-6As shown, a limiting mechanism 5 is provided on the semicircular plate 43. The limiting mechanism 5 includes a first fixing block 51, a connecting rod 52, a second fixing block 53, a groove 54, and a limiting block 56. The first fixing block 51 and the second fixing block 53 are both fixedly connected to the outer wall of the semicircular plate 43. The connecting rod 52 is fixedly connected to the outer wall of the first fixing block 51 and slides through the second fixing block 53. The groove 54 is opened on the connecting rod 52, and the limiting block 56 is slidably connected inside the groove 54. A second spring 55 is provided inside the groove 54, and the two ends of the second spring 55 are fixedly connected to the outer wall of the limiting block 56 and the inner wall of the groove 54, respectively. By setting the second spring 55, the limiting block 56 can be driven to reset.
[0027] Specifically, by fitting the skin 3 onto the outer wall of the non-metallic compensator body 1 and inserting the arc plate 44 into the limiting hole, the two semi-circular plates 43 form a ring to fix the skin 3. When the two semi-circular plates 43 are combined, the limiting block 56 is pressed to retract into the groove 54. Then the two semi-circular plates 43 are combined together. At this time, the connecting rod 52 passes through the fixing block 53, and the limiting block 56 is reset to prevent the connecting rod 52 from disengaging from the fixing block 53. Thus, the two semi-circular plates 43 are stably fitted onto the outer wall of the skin 3, improving the stability of the installation.
[0028] The working principle of this utility model is as follows: By turning the screw block 49, the threaded rod 47 is driven to rotate. The threaded rod 47 drives the abutment block 48 away from the first semicircular plate 42, so that the second semicircular plate 43 is reset under the action of the first spring 46, causing the arc plate 44 to disengage from the limiting hole. Then, the flange 2 can be removed to disassemble and replace the skin 3. By fitting the skin 3 onto the outer wall of the non-metallic compensator body 1 and inserting the arc plate 44 into the limiting hole, the two second semicircular plates 43 form a ring to fix the skin 3. When the two second semicircular plates 43 are combined, the limiting block 56 is pressed to retract into the groove 54. Then, the two second semicircular plates 43 are combined together. At this time, the connecting rod 52 passes through the second fixing block 53. The limiting block 56 is reset to prevent the connecting rod 52 from disengaging from the second fixing block 53, so that the two second semicircular plates 43 are stably fitted onto the outer wall of the skin 3, improving the stability of the installation.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A non-metallic compensator with easy-to-replace skin, characterized in that, include: The non-metallic compensator body (1), flange (2), skin (3) and fixing mechanism (4) are provided. The flange (2) is provided at the end of the non-metallic compensator body (1), the skin (3) is fitted on the outer wall of the non-metallic compensator body (1), and the fixing mechanism (4) is provided on the flange (2). The fixing mechanism (4) includes an annular groove (41), a first semicircular plate (42), a second semicircular plate (43), and an arc plate (44). The annular groove (41) is opened on the flange (2). The first semicircular plate (42) is slidably connected to the inside of the annular groove (41). The second semicircular plate (43) is fixedly connected to the bottom of the first semicircular plate (42) and abuts against the outer wall of the skin (3). The skin (3) is provided with a limiting hole. The arc plate (44) is fixedly connected to the inner wall of the second semicircular plate (43) and inserted into the inside of the limiting hole.
2. A non-metallic compensator with easily replaceable skin according to claim 1, characterized in that: The annular groove (41) is fixedly connected to a limiting rod (45), which passes through the semicircular plate (42) and is slidably connected to the semicircular plate (42).
3. A non-metallic compensator with easily replaceable skin according to claim 2, characterized in that: The outer wall of the limiting rod (45) is fitted with a spring (46), and the two ends of the spring (46) are fixedly connected to the inner wall of the annular groove (41) and the outer wall of the semicircular plate (42), respectively.
4. A non-metallic compensator with easily replaceable skin according to claim 1, characterized in that: The flange (2) is threaded with a threaded rod (47). One end of the threaded rod (47) is rotatably connected to an abutment block (48) via a bearing, and the other end is fixedly connected to a screw block (49). The abutment block (48) abuts against the outer wall of the semicircular plate (42).
5. A non-metallic compensator with easily replaceable skin according to claim 1, characterized in that: A limiting mechanism (5) is provided on the second semicircular plate (43). The limiting mechanism (5) includes a first fixing block (51), a connecting rod (52), a second fixing block (53), a groove (54), and a limiting block (56). The first fixing block (51) and the second fixing block (53) are both fixedly connected to the outer wall of the second semicircular plate (43). The connecting rod (52) is fixedly connected to the outer wall of the first fixing block (51) and slides through the second fixing block (53). The groove (54) is opened on the connecting rod (52), and the limiting block (56) is slidably connected inside the groove (54).
6. A non-metallic compensator with easily replaceable skin according to claim 5, characterized in that: A second spring (55) is provided inside the groove (54), and the two ends of the second spring (55) are fixedly connected to the outer wall of the limiting block (56) and the inner wall of the groove (54), respectively.
7. A non-metallic compensator with easily replaceable skin according to claim 1, characterized in that: A sealing ring is fixedly connected to the flange (2), and sealing grooves are provided at the top and bottom of the non-metallic compensator body (1), with the sealing ring inserted into the inside of the sealing groove.