Corrugated pipe compensator

Abstract

The utility model discloses a bellows compensator, relates to bellows compensator field, including bellows main part, flange, connecting plate and double-headed pull rod, connecting plate is symmetrically equipped with two drag reduction subassembly, drag reduction subassembly is composed of anti-drop plate, first post, first square bar, contact lever, mounting screw, second post, second square bar and threaded post, the anti-falling plate and the first square rod are fixedly installed at the two ends of the first column respectively, the second square rod is fixedly installed at one end of the second column, and the threaded column is rotatably installed at the other end of the second column. The anti-falling plate and the first square rod are fixedly installed at the two ends of the first column respectively, the second square rod is fixedly installed at one end of the second column, and the threaded column is rotatably installed at the other end of the second column. The friction resistance is obviously reduced, the abrasion is reduced, and the service life of the compensator is prolonged; meanwhile, due to the rolling contact design, the corrugated pipe body is smoother in the stretching and retracting process, and the response speed and the working efficiency of the compensator are improved.

Description

Technical Field

[0001] This utility model relates to the field of bellows compensators, and in particular to a bellows compensator. Background Technology

[0002] A bellows compensator is a flexible connection device used in piping systems. It primarily absorbs stress caused by thermal expansion and contraction, vibration, or displacement, thereby protecting the piping system from damage. Its typical structure includes a bellows body, flanges, connecting plates, and tie rods. The bellows body achieves displacement compensation through its flexible structure. The flanges are used to connect to the piping system, while the connecting plates are usually fixed to the outer wall of the flanges for installing and securing other auxiliary components. The tie rods play a crucial role in the bellows compensator, mainly used to limit excessive displacement of the bellows and prevent excessive stretching or compression during operation due to pressure or external forces, thus ensuring the bellows operates within safe limits. The tie rods are typically installed through shaft holes on the connecting plates and secured to both sides with nuts to maintain structural stability.

[0003] However, existing bellows compensators have certain drawbacks in practical use. Because the bellows frequently expands and contracts during operation, it causes the connecting flange to move, and friction easily occurs at the contact point between the tie rod and the connecting flange. Over time, this friction leads to gradual wear on the contact surfaces of the tie rod and the connecting flange, not only affecting the service life of the compensator but also potentially reducing its performance and even causing safety hazards. Therefore, this application proposes a bellows compensator to solve the above problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a bellows compensator that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A bellows compensator includes a bellows body, a flange, a connecting plate, and a double-ended tie rod. Two drag-reducing components are symmetrically mounted on the connecting plate. Each drag-reducing component consists of an anti-detachment plate, a first column, a first square rod, a contact rod, a mounting screw, a second column, a second square rod, and a threaded post. The anti-detachment plate and the first square rod are fixedly mounted at both ends of the first column, the second square rod is fixedly mounted at one end of the second column, and the threaded post is rotatably mounted at the other end of the second column. The contact rod is sleeved on the first and second square rods, and the mounting screw is mounted on the contact rod and the second square rod. The double-ended tie rod is movably mounted between the two symmetrically arranged drag-reducing components.

[0007] Preferably, there are two flanges that are symmetrically fixed at both ends of the bellows body, and several connecting plates that are respectively fixed on the outer walls of the two flanges. The connecting plates are provided with shaft holes that pass through the connecting plates. Two anti-detachment grooves are symmetrically provided inside the connecting plates. Two threaded holes are symmetrically provided at one end of the connecting plates. Two connecting holes are also symmetrically provided inside the connecting plates, and the connecting holes connect the shaft holes with the anti-detachment grooves and the threaded holes.

[0008] Preferably, the double-ended pull rod includes a pull rod body and nuts. The pull rod body is movably inserted into two shaft holes opened on two connecting plates. There are four nuts, which are symmetrically installed on the pull rod body, and the four nuts are simultaneously installed symmetrically in pairs on both sides of the two connecting plates.

[0009] Preferably, the anti-detachment plate and the first column of the drag reduction assembly are rotatably installed in the anti-detachment groove and the connecting hole, the second column is rotatably installed in the connecting hole, and the threaded column is installed in the threaded hole.

[0010] Preferably, the contact rod is rotatably installed in the connecting hole and the shaft hole. An annular groove is formed on the outer wall of the contact rod. Two square holes are formed at both ends of the contact rod. An installation through hole is formed inside the contact rod, which connects the two square holes. The contact rod is respectively sleeved on the first square rod and the second square rod through the two square holes. One end of the mounting screw passes through the installation through hole and is installed in the second square rod. The head of the mounting screw is located in one of the square holes.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By incorporating a drag-reducing component within the connecting plate and replacing the connecting plate in contact with the tie rod body, the rolling contact between the drag-reducing component and the tie rod body significantly reduces frictional resistance, minimizes wear, and extends the compensator's service life. Simultaneously, the rolling contact design allows for smoother expansion and contraction of the bellows body, improving the compensator's response speed and working efficiency. Furthermore, by designing the contact rod as a separately detachable component, it can be replaced individually after wear, eliminating the need to replace the entire drag-reducing component. This greatly reduces maintenance costs, simplifies the repair process, and improves the maintainability and economy of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram showing the positional relationship between the connecting plate of this utility model after it has been cut apart and the double-headed tie rod and drag reduction component.

[0015] Figure 3This is a schematic diagram showing the positional relationship between the connecting plate and the drag reduction component after the connection plate of this utility model is cut apart.

[0016] Figure 4 This is a cross-sectional view of the connecting plate of this utility model;

[0017] Figure 5 This is a cross-sectional view of the contact rod of the drag reduction component of this utility model.

[0018] Figure 6 This is an exploded view of the drag reduction component of this utility model.

[0019] In the diagram: 1. Bellows body; 2. Flange; 3. Connecting plate; 4. Double-ended tie rod; 5. Drag reduction assembly; 6. Shaft hole; 7. Anti-detachment groove; 8. Threaded hole; 9. Connecting hole; 10. Tie rod body; 11. Nut; 12. Anti-detachment plate; 13. First column; 14. First square rod; 15. Contact rod; 16. Annular groove; 17. Square hole; 18. Mounting through hole; 19. Mounting screw; 20. Second column; 21. Second square rod; 22. Threaded column. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1-6 As shown, a bellows compensator includes a bellows body 1, a flange 2, a connecting plate 3, and a double-ended tie rod 4. Two drag-reducing components 5 are symmetrically mounted on the connecting plate 3. Each drag-reducing component 5 consists of an anti-detachment plate 12, a first column 13, a first square rod 14, a contact rod 15, a mounting screw 19, a second column 20, a second square rod 21, and a threaded column 22. The anti-detachment plate 12 and the first square rod 14 are fixedly installed at both ends of the first column 13, the second square rod 21 is fixedly installed at one end of the second column 20, and the threaded column 22 is rotatably installed at the other end of the second column 20. The contact rod 15 is sleeved on... On the first square rod 14 and the second square rod 21, the mounting screw 19 is installed on the contact rod 15 and the second square rod 21. The double-headed tie rod 4 is movably installed between the two symmetrically arranged drag-reducing components 5. The installation method of the bellows compensator is as follows: First, align the flanges 2 at both ends of the bellows body 1 with the flanges of the pipeline system and fix them with bolts to ensure sealing. Then, insert the tie rod body 10 of the double-headed tie rod 4 into the shaft holes 6 of the two symmetrical connecting plates 3, and install nuts 11 on both sides of the connecting plates 3. The displacement range of the bellows body 1 is limited by adjusting the position of the nuts 11.

[0022] Two flanges 2 are symmetrically fixedly installed at both ends of the bellows body 1. Several connecting plates 3 are fixedly installed on the outer walls of the two flanges 2 respectively. The connecting plates 3 have shaft holes 6 that pass through them. Two anti-detachment grooves 7 are symmetrically opened inside the connecting plates 3. Two threaded holes 8 are symmetrically opened at one end of the connecting plates 3. Two connecting holes 9 are also symmetrically opened inside the connecting plates 3, connecting the shaft holes 6 with the anti-detachment grooves 7 and the threaded holes 8. The double-ended tie rod 4 includes a tie rod body 10 and nuts 11. The tie rod body 10 is movably inserted into the two shaft holes 6 opened on the two connecting plates 3. Four nuts 11 are symmetrically installed on the tie rod body 10. On the 0, four nuts 11 are symmetrically installed in pairs on both sides of the two connecting plates 3. The anti-detachment plate 12 and the first column 13 on the drag reduction assembly 5 are rotatably installed in the anti-detachment groove 7 and the connecting hole 9. The second column 20 is rotatably installed in the connecting hole 9. The threaded column 22 is installed in the threaded hole 8. The contact rod 15 is rotatably installed in the connecting hole 9 and the shaft hole 6. An annular groove 16 is opened on the outer wall of the contact rod 15. Two square holes 17 are opened at both ends of the contact rod 15. An installation through hole 18 is opened in the contact rod 15, which connects the two square holes 17. The contact rod 15 is respectively sleeved on the first square rod 14 and the second square rod 21 through the two square holes 17. One end of the screw 19 passes through the mounting through hole 18 and is installed in the second square rod 21. The head of the mounting screw 19 is located in one of the square holes 17. When the drag reduction component 5 is working, when the bellows body 1 extends and retracts, causing the connecting plate 3 to move, the contact rod 15 rolls into contact with the pull rod body 10 through the annular groove 16. At this time, the anti-detachment plate 12, the first column 13, the first square rod 14, the contact rod 15, the mounting screw 19, the second column 20, and the second square rod 21 will rotate together with the contact rod 15, thereby converting sliding friction into rolling friction and significantly reducing wear. When the contact rod 15 is worn, the replacement steps are as follows: First, use a tool to rotate the threaded column 22 to remove the thread. The threaded post 22 is removed from the threaded hole 8. At this time, the threaded post 22 will drive the contact rod 15 to move through the second post 20, the second square rod 21 and the mounting screw 19, so that the contact rod 15 is finally moved out of the connecting hole 9. Then, use a tool to loosen the mounting screw 19 and remove the worn contact rod 15 from the second square rod 21. Then, prepare a new contact rod 15, insert it into the second square rod 21, and use the mounting screw 19 to fix the contact rod 15 to the second square rod 21. Finally, re-insert the contact rod 15 into the connecting hole 9, so that the contact rod 15 is fitted onto the first square rod 14, and then install the threaded post 22 into the threaded hole 8 to complete the replacement.

[0023] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A bellows compensator comprising a bellows body (1), a flange plate (2), a connecting plate (3) and a double-end tie rod (4), characterized in that: The connecting plate (3) is symmetrically provided with two drag reduction assemblies (5), the drag reduction assembly (5) is composed of an anti-off plate (12), a first column (13), a first square rod (14), a contact rod (15), a mounting screw rod (19), a second column (20), a second square rod (21) and a threaded column (22), the anti-off plate (12) and the first square rod (14) are fixedly installed at two ends of the first column (13) respectively, the second square rod (21) is fixedly installed at one end of the second column (20), the threaded column (22) is rotatably installed at the other end of the second column (20), the contact rod (15) is sleeved on the first square rod (14) and the second square rod (21), the mounting screw rod (19) is installed on the contact rod (15) and the second square rod (21), and the double-headed pull rod (4) is movably installed between the two symmetrically arranged drag reduction assemblies (5).

2. A bellows compensator according to claim 1, characterized in that: The flange plate (2) is provided with two flange plates (2) which are symmetrically fixedly installed at two ends of the corrugated pipe body (1), the connecting plate (3) is provided with a plurality of connecting plates (3) which are fixedly installed on the outer walls of the two flange plates (2), the connecting plate (3) is provided with an axle hole (6), the axle hole (6) penetrates the connecting plate (3), the connecting plate (3) is symmetrically provided with two anti-off grooves (7) inside, one end of the connecting plate (3) is symmetrically provided with two threaded holes (8), and the connecting plate (3) is symmetrically provided with two communication holes (9) inside.

3. A bellows compensator according to claim 2, characterized in that: The double-headed pull rod (4) comprises a pull rod body (10) and a nut (11), the pull rod body (10) is movably inserted into the two axle holes (6) provided in the two connecting plates (3), the nut (11) is provided with four nuts (11) which are symmetrically installed on the pull rod body (10), and the four nuts (11) are symmetrically installed on the two sides of the two connecting plates (3) at the same time.

4. A bellows compensator according to claim 3, wherein: The anti-off plate (12) and the first column (13) on the drag reduction assembly (5) are rotatably installed in the anti-off groove (7) and the communication hole (9), the second column (20) is rotatably installed in the communication hole (9), and the threaded column (22) is installed in the threaded hole (8).

5. A bellows compensator according to claim 4, wherein: The contact rod (15) is rotatably installed in the communication hole (9) and the axle hole (6), the outer wall of the contact rod (15) is provided with an annular groove (16), two square holes (17) are formed at two ends of the contact rod (15), an installation through hole (18) is formed in the contact rod (15), the installation through hole (18) communicates the two square holes (17), the contact rod (15) is sleeved on the first square rod (14) and the second square rod (21) through the two square holes (17), one end of the mounting screw rod (19) penetrates the installation through hole (18) and is installed in the second square rod (21), and the head of the mounting screw rod (19) is located in one of the square holes (17).

Images