Leak-proof metal compensator
By incorporating leak-proof and warning components into the metal compensator, the leakage problem caused by excessive internal pressure is solved, achieving a safe and reliable operating effect.
Patent Information
- Application Number
- CN202422981676.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing metal compensators are prone to rupture, leakage, or pipe bursting when the internal pressure of the expansion joint is too high during use, leading to safety accidents.
A leak-proof metal compensator was designed. By setting a first sleeve and a second sleeve on the outer surface of the bellows, the first sleeve is fixed inside the flange. The expansion and contraction of the bellows are limited by a fixing rod and a stop, and the leakage situation is judged by an indicator component.
It effectively prevents bellows leakage and promptly alerts operators to any leakage, thus avoiding safety accidents.
Smart Images

Figure CN223511734U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal compensator technology, specifically a leak-proof metal compensator. Background Technology
[0002] Metal compensators are devices that can freely expand and contract in a pipeline system. They are mainly used to absorb changes in pipeline length caused by temperature variations, thereby protecting the pipeline system from stress damage caused by thermal expansion and contraction.
[0003] Existing metal compensators, when used, can only cover one layer of pipeline. When the internal pressure of the expansion joint of the metal compensator is too high, it is easy to cause rupture, leakage or pipe burst, which can lead to safety accidents and make them inconvenient to use. Utility Model Content
[0004] The purpose of this utility model is to provide a leak-proof metal compensator to solve the problem mentioned in the background art that existing metal compensators, when used, can only support one layer of pipeline. When the internal pressure of the expansion joint of the metal compensator is too high, it is easy to cause rupture, leakage or pipe burst, which can lead to safety accidents and make it inconvenient to use.
[0005] To solve the above-mentioned technical problems, this utility model provides a leak-proof metal compensator, comprising:
[0006] A compensator assembly, the compensator assembly including a flange;
[0007] A leak-proof assembly includes a threaded groove, a first sleeve, a baffle, a sealing ring, a second sleeve, a fixing rod, and a stop block. The threaded groove is located inside the flange. The first sleeve is threaded into the inside of the threaded groove. The baffle is fixedly connected to the outside of the first sleeve. The sealing ring is fixedly connected to the outside of the baffle. The second sleeve is fitted onto the outer surface of the first sleeve. The fixing rod is fixedly connected to the outer perimeter of the baffle. The stop block is fixedly connected to the outer end of the fixing rod.
[0008] Furthermore, the compensator assembly also includes a bellows and a threaded post, with the flange fixedly connected to both ends of the bellows and the threaded post sleeved on the outside of the flange.
[0009] Furthermore, the outer surface of the first sleeve has a threaded structure on one side relative to the threaded groove, and the first sleeve is sleeved on the outer positions of both ends of the bellows.
[0010] Furthermore, the second sleeve has a U-shaped structure, and the baffle and sealing ring are located on both sides inside the second sleeve.
[0011] Furthermore, the fixing rod extends outward through the inside of the second sleeve, and the stop block is located outside the second sleeve.
[0012] Furthermore, it also includes a prompting component, which includes a through hole, a movable rod, a sealing sleeve, a first limiting plate, a second limiting plate, and a marking ring. The through hole is opened on one side of the second sleeve, the movable rod is slidably connected to the inside of the through hole, the sealing sleeve is fixedly connected to the outer surface of the movable rod, the first limiting plate is fixedly connected to one end of the movable rod, the second limiting plate is fixedly connected to the other end of the movable rod, and the marking ring is sleeved on the outer surface of the sealing sleeve.
[0013] Furthermore, the outer surface of the sealing sleeve and the inner surface of the through hole are in contact, and the marking ring is located on the outer side of the second sleeve.
[0014] Furthermore, the first limiting plate is located inside the second sleeve, and the second limiting plate is located outside the second sleeve.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up an anti-leakage component, by setting a first sleeve and a second sleeve on the outer surface of the bellows, the first sleeve is fixed inside the flange. When the bellows expands or contracts, the flange drives the first sleeve to move inside the second sleeve, so that the first sleeve and the second sleeve are always sleeved on the outside of the bellows, thereby preventing the bellows from leaking. Furthermore, the extension distance of the bellows is limited by the fixing rod and the stop block, preventing the bellows from breaking and leaking due to extreme stretching.
[0016] Meanwhile, by setting up a prompting component, the moving rod drives the sealing sleeve to move inside the through hole, causing the sealing sleeve to move the indicator ring. The pressure inside the second sleeve is judged based on the position of the indicator ring, thereby judging the leakage of the bellows and promptly alerting external personnel. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is the front view of the present utility model;
[0019] Figure 2 This is a structural diagram of the compensator assembly of this utility model;
[0020] Figure 3 This is a structural diagram of the leak-proof component of this utility model;
[0021] Figure 4 This is a structural diagram of the prompting component of this utility model.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 11. Bellows; 12. Flange; 13. Threaded post; 21. Threaded groove; 22. First sleeve; 23. Baffle; 24. Sealing ring; 25. Second sleeve; 26. Fixing rod; 27. Stop block; 31. Through hole; 32. Movable rod; 33. Sealing sleeve; 34. First limiting plate; 35. Second limiting plate; 36. Marking ring. 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. 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.
[0025] Please see Figure 1-3 As shown, this embodiment is a leak-proof metal compensator, comprising:
[0026] The compensator assembly includes a flange 12;
[0027] The leak-proof assembly includes a threaded groove 21, a first sleeve 22, a baffle 23, a sealing ring 24, a second sleeve 25, a fixing rod 26, and a stop block 27. The threaded groove 21 is located inside the flange 12. The first sleeve 22 is threadedly connected to the inside of the threaded groove 21. The baffle 23 is fixedly connected to the outside of the first sleeve 22. The sealing ring 24 is fixedly connected to the outside of the baffle 23. The second sleeve 25 is fitted onto the outer surface of the first sleeve 22. The fixing rod 26 is fixedly connected to the outer perimeter of the baffle 23. The stop block 27 is fixedly connected to the outer end of the fixing rod 26.
[0028] The threaded groove 21 is used to fix the first sleeve 22. The first sleeve 22 and the second sleeve 25 are used to prevent the bellows 11 from leaking. The baffle 23 is used to support the sealing ring 24. The sealing ring 24 is used to seal the inside sides of the second sleeve 25. The fixing rod 26 is used to support the stop block 27. The stop block 27 is used to limit the fixing rod 26.
[0029] The compensator assembly also includes a bellows 11 and a threaded post 13. A flange 12 is fixedly connected to both ends of the bellows 11, and the threaded post 13 is sleeved on the outside of the flange 12.
[0030] Flange 12 is used to connect bellows 11 to external pipes, and threaded post 13 is used to fix the length of bellows 11.
[0031] The outer surface of the first sleeve 22 has a threaded structure on one side relative to the threaded groove 21, and the first sleeve 22 is sleeved on the outer positions of both ends of the bellows 11.
[0032] The first sleeve 22 can be fixed to the outer positions of both ends of the bellows 11 through a threaded structure.
[0033] The second sleeve 25 has a U-shaped structure, and the baffle 23 and the sealing ring 24 are located on both sides inside the second sleeve 25.
[0034] The first sleeve 22 can slide inside the second sleeve 25, and the first sleeve 22 can always seal the inside sides of the second sleeve 25 through the sealing ring 24.
[0035] The fixing rod 26 extends outward through the inside of the second sleeve 25, and the stop block 27 is located outside the second sleeve 25.
[0036] When the first sleeve 22 moves outward, the first sleeve 22 can drive the fixed rod 26 to move outward.
[0037] Working principle: When it is necessary to prevent leakage of the bellows 11, the first sleeve 22 is respectively fitted inside the two ends of the second sleeve 25, and the first sleeve 22 and the second sleeve 25 are fitted outside the bellows 11. Then, the first sleeve 22 is fixed to the inside of the flanges 12 at both ends by a threaded structure. When the bellows 11 expands or contracts, the flanges 12 drive the first sleeve 22 to move inside the second sleeve 25, always keeping it in the position outside the bellows 11, thus preventing the bellows 11 from leaking to the outside. Leakage occurs, and when the bellows 11 is stretched, the flange 12 drives the first sleeve 22 to move outward inside the second sleeve 25, the flange 12 drives the fixing rod 26 to move outward, and the fixing rod 26 drives the stop block 27 to move outward. When the stop block 27 moves to contact the inside of the flange 12, the flange 12 blocks the stop block 27, and the stop block 27 blocks the fixing rod 26. Thus, the stretching of the bellows 11 is limited by the first sleeve 22 and the flange 12, preventing the bellows 11 from being stretched excessively.
[0038] Please see Figure 4 As shown, this embodiment, based on the above embodiment, further includes:
[0039] The prompting component includes a through hole 31, a movable rod 32, a sealing sleeve 33, a first limiting plate 34, a second limiting plate 35, and a marking ring 36. The through hole 31 is located on one side of the second sleeve 25. The movable rod 32 is slidably connected to the inside of the through hole 31. The sealing sleeve 33 is fixedly connected to the outer surface of the movable rod 32. The first limiting plate 34 is fixedly connected to one end of the movable rod 32. The second limiting plate 35 is fixedly connected to the other end of the movable rod 32. The marking ring 36 is sleeved on the outer surface of the sealing sleeve 33.
[0040] The through hole 31 is used to guide the movement of the movable rod 32, the movable rod 32 is used to support the sealing sleeve 33, the sealing sleeve 33 is used to seal the through hole 31, the first limiting plate 34 is used to prevent the movable rod 32 from moving outward, the second limiting plate 35 is used to prevent the movable rod 32 from moving into the second sleeve 25, and the marking ring 36 is used to remind the operator.
[0041] The outer surface of the sealing sleeve 33 and the inner surface of the through hole 31 are in contact, and the marking ring 36 is located outside the second sleeve 25.
[0042] The movable rod 32 can move inside the through hole 31, and the movement of the movable rod 32 drives the sealing sleeve 33 to move, thus always sealing the inside of the through hole 31.
[0043] The first limiting plate 34 is located inside the second sleeve 25, and the second limiting plate 35 is located outside the second sleeve 25.
[0044] The movable rod 32 can move inside the through hole 31 under the limitation of the first limiting plate 34 and the second limiting plate 35, and cannot be moved out from both ends inside the through hole 31.
[0045] Working principle: After the anti-leakage component is installed, a moving force is applied to the indicator ring 36, causing it to move along the sealing sleeve 33 and come into contact with the outside of the second sleeve 25. When the bellows 11 leaks, the liquid inside the bellows 11 enters the second sleeve 25, increasing the pressure inside the second sleeve 25. This increased pressure exerts an outward force on the first limiting plate 34, causing the first limiting plate 34 to move the movable rod 32 outward. The outward movement of the movable rod 32 causes the sealing sleeve 33 and the indicator ring 36 to move outward. Based on the distance between the indicator ring 36 and the outside of the second sleeve 25, the pressure inside the second sleeve 25 can be determined. The pressure inside the second sleeve 25 is directly proportional to the amount of leakage in the bellows 11, thus allowing for the determination of the leakage status of the bellows 11.
[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A leak-proof metal compensator, characterized in that, include: Compensator assembly, the compensator assembly including flange (12); The leak-proof assembly includes a threaded groove (21), a first sleeve (22), a baffle (23), a sealing ring (24), a second sleeve (25), a fixing rod (26), and a stop (27). The threaded groove (21) is located inside the flange (12). The first sleeve (22) is threaded into the inside of the threaded groove (21). The baffle (23) is fixedly connected to the outside of the first sleeve (22). The sealing ring (24) is fixedly connected to the outside of the baffle (23). The second sleeve (25) is fitted onto the outer surface of the first sleeve (22). The fixing rod (26) is fixedly connected to the four sides of the outside of the baffle (23). The stop (27) is fixedly connected to the outer end of the fixing rod (26).
2. The leak-proof metal compensator as described in claim 1, characterized in that: The compensator assembly also includes a bellows (11) and a threaded post (13). The flange (12) is fixedly connected to both ends of the bellows (11), and the threaded post (13) is sleeved on the outside of the flange (12).
3. The leak-proof metal compensator as described in claim 1, characterized in that: The first sleeve (22) has a threaded structure on one side of its outer surface relative to the threaded groove (21), and the first sleeve (22) is fitted onto the outer ends of the bellows (11).
4. A leak-proof metal compensator as described in claim 1, characterized in that: The second sleeve (25) has a U-shaped structure, and the baffle (23) and the sealing ring (24) are located on both sides inside the second sleeve (25).
5. A leak-proof metal compensator as described in claim 1, characterized in that: The fixing rod (26) extends outward through the inside of the second sleeve (25), and the stop block (27) is located outside the second sleeve (25).
6. A leak-proof metal compensator as described in claim 1, characterized in that: It also includes a prompting component, which includes a through hole (31), a movable rod (32), a sealing sleeve (33), a first limiting plate (34), a second limiting plate (35), and a marking ring (36). The through hole (31) is opened on one side of the second sleeve (25). The movable rod (32) is slidably connected to the inside of the through hole (31). The sealing sleeve (33) is fixedly connected to the outer surface of the movable rod (32). The first limiting plate (34) is fixedly connected to one end of the movable rod (32). The second limiting plate (35) is fixedly connected to the other end of the movable rod (32). The marking ring (36) is sleeved on the outer surface of the sealing sleeve (33).
7. A leak-proof metal compensator as described in claim 6, characterized in that: The outer surface of the sealing sleeve (33) and the inner surface of the through hole (31) are in contact, and the marking ring (36) is located outside the second sleeve (25).
8. A leak-proof metal compensator as described in claim 6, characterized in that: The first limiting plate (34) is located inside the second sleeve (25), and the second limiting plate (35) is located outside the second sleeve (25).