A bellows compensator

Abstract

The utility model relates to the technical field of compensators, and proposes a bellows compensator, including a tube body, and also including legs, a fixing plate, a connecting flange, a connecting pipe, a buffer assembly and a pressing assembly. The fixing plate is fixedly mounted on the legs, two connecting flanges are provided, and grooves are provided on the sides of the connecting flanges, and the tube body is fixedly mounted between the two connecting flanges, two connecting pipes are provided, and two connecting rods penetrate the connecting flanges, and the connecting pipe is fixedly connected to the fixing plate, and the buffer assembly is provided on the connecting pipe for buffering the compensator after it is extended, and the pressing assembly is provided on the connecting pipe for blocking the tube body after it is deflected up and down. Through the above technical scheme, the problem in the prior art that when the compensator is telescopically limited, if the compensator does not reach the critical point to limit it, it may make the bellows difficult to protect it when it is stretched, thereby causing damage to the bellows.

Description

Technical Field

[0001] The utility model relates to the technical field of compensators, in particular to a bellows compensator. Background Art

[0002] Bellows compensator, also called expansion joint or telescopic joint, is composed of bellows and end pipes, brackets, flanges, ducts and other accessories that constitute its working body. It utilizes the effective expansion and contraction of the bellows, the working body, to absorb the dimensional changes caused by thermal expansion and contraction of pipelines, ducts, containers, etc., or to compensate for the axial, lateral and angular displacements of pipelines, ducts, containers, etc. When the bellows compensator expands and contracts with the bellows, if the bellows expansion and contraction length is too long, the compensator may be stretched too long, thereby exceeding the limit value of the compensator and causing the compensator wall to rupture.

[0003] A search was conducted on the above-mentioned issues and it was found that in the currently disclosed prior art, there is a bellows compensator proposed with publication number CN218972123U. The compensator is constructed by installing a limit rod on the connecting flange, installing a connecting seat between the limit rods, and installing a limit ring on the connecting seat. The limit ring limits the moving distance of the limit rod, thereby limiting the expansion and contraction of the compensator and avoiding excessive expansion and contraction that may cause rupture of the pipe wall.

[0004] However, although the compensator can limit the expansion and contraction length, if the bellows at both ends expand and contract to a large extent, but the compensator has not reached the maximum deformation, the limit ring will limit the expansion and contraction of the compensator, making the expansion and contraction degree of the compensator smaller than the degree of change of the bellows, which may cause the bellows to continue to extend. However, due to the limitation of the limiting ring, the protection of the bellows by the compensator is limited, which may cause damage to the bellows. Utility Model Content

[0005] The utility model provides a bellows compensator, which solves the problem in the prior art that when the compensator is telescopically limited, if the compensator does not reach the critical point to limit it, it may be difficult to protect the bellows when it is stretched, thereby causing damage to the bellows.

[0006] The technical solution of the utility model is as follows:

[0007] A bellows compensator includes a tube body, and also includes support legs, a fixing plate, a connecting flange, a connecting pipe, a buffer assembly and a downward pressure assembly. The two legs are provided, the two fixing plates are provided, and the fixing plates are fixedly installed on the support legs. The two connecting flanges are provided, and grooves are provided on the sides of the connecting flanges, and the tube body is fixedly installed between the two connecting flanges. The two connecting pipes are provided, and the two connecting pipes pass through the connecting flanges, and the connecting pipes are fixedly connected to the fixing plate. The buffer assembly is provided on the connecting pipe to buffer the compensator after it is extended, and the downward pressure assembly is provided on the connecting pipe to block the tube body after it deviates up and down.

[0008] Furthermore, the buffer assembly includes a support plate, a telescopic spring, a buffer plate, a sliding frame and an extrusion plate, wherein the support plates are provided with a plurality of them, a sliding groove is provided on the top of the support plate, and the support plate is fixedly mounted on the connecting pipe, the telescopic springs are provided with a plurality of them, and the telescopic springs are mounted on the side of the support plate, the buffer plates are provided with a plurality of them, and the buffer plate is fixedly mounted on the other end of the telescopic spring, the sliding frames are provided with a plurality of them, and one end of the sliding frames is slidably mounted on the support plate, the extrusion plate is provided with a plurality of them, a sliding groove is provided on the side of the extrusion plate, the extrusion plate contacts the buffer plate, and the other end of the sliding frame is slidably mounted on the side of the extrusion plate.

[0009] Furthermore, the down-pressing assembly includes a mounting frame and a down-pressing ring, wherein two mounting frames are provided and the mounting frames are fixedly installed on the side of the connecting pipe, and four down-pressing rings are provided and the down-pressing rings are obliquely installed on the mounting frames, and the curvature of the down-pressing rings is consistent with the curvature of the side of the connecting flange.

[0010] Furthermore, it also includes a moving component, which includes a moving block and a pushing rod. Four moving blocks are provided, and the moving blocks are slidably installed on the connecting pipe. Several pushing rods are provided, and the pushing rods are fixedly installed on the moving blocks.

[0011] Furthermore, when the sliding frame is stationary in the sliding grooves of the extrusion plate and the support plate, the extrusion plate presses the buffer plate, and the telescopic spring is in a compressed state.

[0012] Furthermore, a telescopic tube is fixedly installed in the middle part of the two legs.

[0013] Furthermore, when the connecting flange contacts the lower pressure ring and the moving block moves to the end of the connecting pipe, the pipe body bends and expands to the maximum extent.

[0014] The working principle and beneficial effects of the utility model are:

[0015] 1. In the utility model, the moving block is pushed to move to the fixed plate by the expansion and contraction of the pipe body in the compensator, so as to limit its position, and the pipe body and the connecting flange can be pushed and buffered by the buffer assembly, thereby avoiding damage caused by the excessive expansion and contraction of the pipe body of the compensator;

[0016] 2. In the present invention, when the pipe body is deflected up and down by the pressing component, if the pipe body is deflected to the maximum extent, the connecting flange and the pipe body can be pressed down;

[0017] In summary, the compensator can make the pipe body bend to the maximum extent through the mutual cooperation between the fixed plate, the connecting flange, the connecting pipe, the buffer assembly and the pressing assembly, and avoids limiting the compensator when it is not bent to the maximum extent, thereby making it difficult to protect the corrugated pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a structural schematic diagram of the connecting pipe and the buffer assembly of the utility model;

[0021] Figure 3 For this utility model Figure 2 A local enlarged schematic diagram of the middle A;

[0022] Figure 4 It is a structural schematic diagram of the pressing component of the utility model.

[0023] In the figure: 1, tube body; 2, support leg; 3, fixing plate; 4, connecting flange; 5, connecting pipe; 6, telescopic tube; 101, support plate; 102, telescopic spring; 103, buffer plate; 104, sliding frame; 105, extrusion plate; 201, mounting frame; 202, lower pressure ring; 301, moving block; 302, pushing rod. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 to Figure 4As shown, this embodiment proposes a bellows compensator, including a tube body 1, and also includes support legs 2, fixed plates 3, connecting flanges 4, connecting pipes 5, buffer components and downward pressure components. Two support legs 2 are provided, two fixing plates 3 are provided, and the fixing plates 3 are fixedly installed on the support legs 2. Two connecting flanges 4 are provided, and grooves are provided on the sides of the connecting flanges 4, and the tube body 1 is fixedly installed between the two connecting flanges 4. Two connecting pipes 5 are provided, and the two connecting pipes 5 pass through the connecting flanges 4, and the connecting pipes 5 are fixedly connected to the fixing plates 3. The buffer component is provided on the connecting pipe 5, and is used to buffer the compensator after extension. The downward pressure component is provided on the connecting pipe 5, and is used to block the tube body 1 after it deviates up and down.

[0026] In this embodiment, the buffer assembly includes a support plate 101, a telescopic spring 102, a buffer plate 103, a sliding frame 104 and an extrusion plate 105. The support plate 101 is provided with a plurality of support plates, a slide groove is provided on the top of the support plate 101, and the support plate 101 is fixedly installed on the connecting pipe 5. The telescopic spring 102 is provided with a plurality of buffer plates 103, and the buffer plate 103 is fixedly installed on the other end of the telescopic spring 102. The sliding frame 104 is provided with a plurality of support plates 101, and the support plate 101 is fixedly installed on the connecting pipe 5. 04 is provided with several, and one end of the sliding frame 104 is slidably installed on the support plate 101, the extrusion plate 105 is provided with several stems, a sliding groove is opened on the side of the extrusion plate 105, the extrusion plate 105 is in contact with the buffer plate 103, and the other end of the sliding frame 104 is slidably installed on the side of the extrusion plate 105, and the sliding frame 104 slides outside the extrusion plate 105 and the support plate 101, so that the extrusion plate 105 is separated from the buffer plate 103, and the telescopic spring 102 is reset, thereby extruding the connecting flange 4 in the reverse direction.

[0027] In this embodiment, the pressing assembly includes a mounting frame 201 and a pressing ring 202. Two mounting frames 201 are provided, and the mounting frames 201 are fixedly installed on the side of the connecting pipe 5. Four pressing rings 202 are provided. The pressing rings 202 are obliquely installed on the mounting frame 201, and the curvature of the pressing ring 202 is consistent with the curvature of the side of the connecting flange 4. When the pipe body 1 and the connecting flange 4 are offset up and down, they can be pressed down by the pressing ring 202.

[0028] In this embodiment, a moving component is also included, which includes a moving block 301 and a pushing rod 302. Four moving blocks 301 are provided, and the moving blocks 301 are slidably installed on the connecting pipe 5. Several pushing rods 302 are provided, and the pushing rods 302 are fixedly installed on the moving blocks 301. The moving blocks 301 are pushed to move through the connecting flange 4, and then the pushing rods 302 push the sliding frame 104.

[0029] In this embodiment, when the sliding frame 104 is stationary in the sliding grooves of the pressing plate 105 and the supporting plate 101 , the pressing plate 105 presses the buffer plate 103 , and the telescopic spring 102 is in a compressed state.

[0030] In this embodiment, a telescopic tube 6 is fixedly mounted on the middle part of the two legs 2 .

[0031] In this embodiment, when the connecting flange 4 contacts the lower pressure ring 202 and the moving block 301 moves to the end of the connecting pipe 5 , the pipe body 1 bends and expands to the maximum extent.

[0032] In this embodiment, when the compensator protects the bellows, the bellows is first inserted into the compensator. If the bellows fluctuates and expands, the bellows drives the pipe body 1 and the connecting flange 4 to move forward and backward, and the connecting flange 4 pushes the moving block 301 to move on the connecting pipe 5. When the moving block 301 moves to the end of the connecting pipe 5, the pushing rod 302 can just push the sliding frame 104 away from the sliding frame 104 and the extrusion plate 105, so that the telescopic spring 102 rebounds and pushes the buffer plate 103 to support the connecting flange 4 to prevent the pipe body 1 from excessive expansion and contraction and thus causing damage. If the bellows drives the pipe body 1 to deviate up and down, if the deflection reaches the maximum extent, the lower pressure ring 202 can press down on the connecting flange 4 to prevent it from continuing to deviate up and down, thereby causing damage to the pipe body 1. It should be supplemented that when the pipe body 1 deviates up and down, the connecting plate and the fixed plate 3 can be driven to deviate up and down through the telescopic tube 6. Therefore, the compensator can drive and protect the bellows within the maximum extent of bending and expansion.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bellows compensator, comprising a tube body (1) and a leg (2), wherein two legs (2) are provided, characterized in that: Also includes: A fixing plate (3), two fixing plates (3) are provided, and the fixing plates (3) are fixedly mounted on the supporting legs (2); A connecting flange (4), wherein two connecting flanges (4) are provided, a groove is provided on the side of the connecting flange (4), and the pipe body (1) is fixedly installed between the two connecting flanges (4); A connecting pipe (5), wherein two connecting pipes (5) are provided, the two connecting pipes (5) penetrate the connecting flange (4), and the connecting pipes (5) are fixedly connected to the fixing plate (3); A buffer assembly, the buffer assembly being arranged on the connecting pipe (5) and used for buffering the compensator after it is extended; A pressing component is arranged on the connecting pipe (5) and is used to block the pipe body (1) after it deviates up and down.

2. A bellows compensator according to claim 1, characterized in that: The buffer assembly comprises: A supporting plate (101), wherein a plurality of the supporting plates (101) are provided, a sliding groove is provided on the top of the supporting plate (101), and the supporting plate (101) is fixedly mounted on the connecting pipe (5); A telescopic spring (102), wherein a plurality of the telescopic springs (102) are provided, and the telescopic springs (102) are installed on a side surface of the support plate (101); A buffer plate (103), wherein a plurality of buffer plates (103) are provided, and the buffer plate (103) is fixedly mounted on the other end of the telescopic spring (102); A sliding frame (104), wherein a plurality of sliding frames (104) are provided, and one end of the sliding frame (104) is slidably mounted on the support plate (101); The extrusion plate (105) is provided with a plurality of stems, a sliding groove is provided on the side of the extrusion plate (105), the extrusion plate (105) is in contact with the buffer plate (103), and the other end of the sliding frame (104) is slidably mounted on the side of the extrusion plate (105).

3. A bellows compensator according to claim 2, characterized in that: The pressing assembly comprises: A mounting frame (201), wherein two mounting frames (201) are provided, and the mounting frames (201) are fixedly mounted on the side of the connecting pipe (5); A lower pressure ring (202), wherein four lower pressure rings (202) are provided, and the lower pressure rings (202) are obliquely mounted on the mounting frame (201), and the curvature of the lower pressure ring (202) is consistent with the curvature of the side surface of the connecting flange (4).

4. A bellows compensator according to claim 3, characterized in that: Also included is a moving assembly, the moving assembly comprising: Moving blocks (301), four of which are provided, and the moving blocks (301) are slidably mounted on the connecting pipe (5); A pushing rod (302), wherein a plurality of the pushing rods (302) are provided, and the pushing rods (302) are fixedly mounted on the moving block (301).

5. A bellows compensator according to claim 4, characterized in that: When the sliding frame (104) is stationary in the sliding grooves of the extrusion plate (105) and the support plate (101), the extrusion plate (105) presses the buffer plate (103), and the telescopic spring (102) is in a compressed state.

6. A bellows compensator according to claim 5, characterized in that: A telescopic tube (6) is fixedly mounted on the middle part of the two supporting legs (2).

7. The bellows compensator according to claim 6, characterized in that: When the connecting flange (4) contacts the lower pressure ring (202), and the moving block (301) moves to the end of the connecting pipe (5), the pipe body (1) bends and expands to the maximum extent.

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