A high-temperature-resistant vibration and noise reduction rubber expansion joint and a use method thereof

Abstract

The application discloses a high-temperature-resistant vibration and noise reduction rubber expansion joint, which comprises a supporting pipe, a first flange and a corrugated pipe, the outer wall of the supporting pipe is provided with the first flange, the outer wall of the first flange is provided with a second flange, the outer wall of the second flange is provided with the corrugated pipe, and the top of the supporting pipe is provided with a noise reduction assembly. The application is provided with a buffer ring, sound-absorbing cotton and a first spring, so that the noise and vibration of the rubber expansion joint are reduced, the threaded sleeve moves to drive the threaded rod to move, the threaded rod moves to drive the first supporting column of the supporting pipe to move, the first supporting column moves to drive the first supporting rod to move, the first supporting rod moves to drive the buffer ring to move, the buffer ring moves to be buffered, the first supporting column moves to drive the first spring to move, the first spring moves to drive the first supporting column to move the first damping block, the first damping block moves to reduce vibration, and the noise and vibration of the rubber expansion joint are reduced.

Description

Technical Field

[0001] This invention relates to the field of expansion joint technology, specifically to a high-temperature resistant, vibration-damping, and noise-reducing rubber expansion joint and its application method. Background Technology

[0002] An expansion joint is a flexible element that effectively compensates for axial deformation, reducing axial loads and thus decreasing thermal stress on pipes, tube sheets, and shells. This prevents strength failure, instability, and pipe pull-out. It consists of a bellows as its main working component, along with end pipes, supports, flanges, conduits, and other accessories. Expansion joints are flexible structures installed on container shells or pipelines to compensate for additional stresses caused by temperature differences and mechanical vibrations. However, existing rubber expansion joints, which utilize the effective expansion and contraction of their main working component (the bellows), are inconvenient to use due to their high noise and vibration levels.

[0003] The existing defects of rubber expansion joints are:

[0004] 1. Patent document CN111929427A discloses a performance testing and verification method for rubber expansion joints, "including the following steps: analyzing the environmental conditions that the rubber expansion joint will withstand in a predetermined field of use; determining the required performance test parameters based on the environmental conditions of the rubber expansion joint in the field of use; determining the acceptance criteria for the rubber expansion joint in the performance test based on the functional requirements of the rubber expansion joint; performing superimposed performance tests on the same rubber expansion joint test piece in a predetermined order; and accepting the performance test of the rubber expansion joint according to the acceptance criteria. Through the performance testing and verification method for rubber expansion joints in this invention, it is ensured that the verified rubber expansion joints can meet the usage requirements of nuclear power and other related fields, avoiding accidents caused by rubber expansion joint failure, and effectively ensuring the safe and continuous operation of equipment using rubber expansion joints." However, existing rubber expansion joints have significant noise and vibration, making them inconvenient to use.

[0005] 2. Patent document CN212960394U discloses a rubber expansion joint, "including a rubber joint, with first flanges at both ends and a second flange on one side of the first flange. The end of the rubber joint is located between the first and second flanges. The second flange has multiple connecting ears around its circumference, and a screw is installed inside each connecting ear. The two second flanges are connected by the screw, and a spring is installed on the screw, with the end of the spring abutting against the connecting ear. The two ends of the rubber joint are clamped and fixed by the first and second flanges. By tightening the nuts at both ends of the screw, the middle part of the rubber joint is compressed into a bulge. The spring on the screw can alleviate the damage to the rubber joint caused by vibration when the pipeline vibrates. At the same time, the universal joint in the middle of the screw can absorb the angular displacement of the plane when the rubber joint undergoes angular displacement in the plane. The guide pipe on the water inlet side of the rubber joint can prevent the high-pressure water flow from scouring the rubber joint for a long time and causing stratification, thereby greatly extending the service life of the rubber joint and ensuring the reliable normal operation of the pure water unit. It is suitable for widespread use." However, the fixing points of the existing rubber expansion joints cannot be quickly lubricated and are prone to corrosion.

[0006] 3. Patent document JP2014092167A discloses an expansion joint, “a bolt and nut capable of sliding between a bolt and a nut, and an expansion joint having a bolt and nut as a stop and allowing the gap between pipes to elongate with a simple structure. Solution: The expansion joint includes a bolt (4) having a shaft (2) and a head (3), a nut (6) having a plurality of separate nuts (5) separated axially, and combined into an annular elastomer (7) disposed on the outer periphery of the nut with the shaft, and a cylinder (8) for receiving the nut and the elastomer is disposed on the outer periphery of the elastomer. When the external force acting between the cylinder body and the bolt in the axial direction separating the cylinder body and the head is equal to or greater than a specified value, the cylinder body slides together with the bolt, nut and elastomer.” However, the existing rubber expansion joint has increased lubricant leakage at the fixing point, resulting in waste.

[0007] 4. Patent document US20020088192A1 discloses a sealing element for an expansion joint seat in a concrete structure, having an elastomeric profile (20) formed by two longitudinal lateral flanges (21) to be fixed to the end edge of the concrete structure (11), and a central portion (22) suspended by the flanges and converging to a central region for fitting within the seat (12), and shaped to support hydrostatic pressure upstream of the concrete structure (10). A flexible conduit (30) is installed inside the seat (12) below the central region of the central portion and is provided with a radial hole (31) opening inward to allow selective feeding of pre-decomposed polymer resin into the seat interior (12) after the elastomeric profile (20) has been installed and fixed to the concrete structure (10). The conduit may be detached from the profile and attached to the central region, or the central region may have a W shape and the conduit may be in the lower part of the W. However, existing rubber expansion joints cannot seal the connection between the connecting sleeve and the rubber expansion joint, making leakage easy. Summary of the Invention

[0008] The purpose of this invention is to provide a high-temperature resistant, vibration-damping, and noise-reducing rubber expansion joint and its usage method, so as to solve the technical problems mentioned in the background art, such as lack of noise reduction function, lack of lubrication function, lack of cost-saving structure, and lack of sealing structure.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a high-temperature resistant vibration-damping and noise-reducing rubber expansion joint, comprising a support tube, a first flange and a corrugated tube, wherein the outer wall of the support tube is fitted with the first flange, the outer wall of the first flange is fitted with the second flange, the outer wall of the second flange is fitted with the corrugated tube, and a noise reduction component is fitted on the top of the support tube;

[0010] The noise reduction component includes a first support block installed on the outer wall of the support tube, a first support column installed on the outer wall of the first support block, a second damping block installed at the bottom of the first support column, the bottom of the second damping block being connected to the outer wall of the support tube, a through opening provided on the outer wall of the first support block, a first support rod installed on the inner wall of the through opening, one end of the first support rod being connected to the inner wall of the first support column, and a buffer ring installed on the outer wall of the first support rod.

[0011] A first spring is installed on the outer wall of the first support block, sound-absorbing cotton is installed on the inner wall of the first support column, and a first damping block is installed on the top of the first support block.

[0012] Preferably, a lubrication assembly is installed on the inner wall of the first support column, a threaded sleeve is installed through the outer wall of the first support column, a blocking assembly is installed on the inner wall of the threaded sleeve, and a threaded rod is installed through the inner wall of the threaded sleeve.

[0013] Preferably, the lubrication assembly includes a storage box installed inside a first support column, a limit block installed on the inner wall of the storage box, a transmission pipe installed through the top of the storage box, one end of the transmission pipe extending to the inner wall of a threaded sleeve, a feeding head installed through the inner wall of the storage box, a pusher installed on the inner wall of the storage box, a second support rod installed on the inner wall of the first support column, a first sliding sleeve installed on the outer wall of the second support rod, a first bracket installed on the outer wall of the first sliding sleeve, one end of the first bracket connected to the bottom of the pusher, a second opening provided on the outer wall of the first support column, a second spring installed on the outer wall of the first bracket, and one end of the second spring connected to the bottom of the storage box.

[0014] Preferably, the blocking assembly includes a first groove inside the threaded sleeve, a third spring installed on the inner wall of the first groove, a third sealing ring installed on the inner wall of the first groove, a scraper installed on the outer wall of the third sealing ring, and one end of the third spring connected to the outer wall of the scraper. The outer wall of the first groove has a fourth opening, a pressure rod is installed through the inner wall of the fourth opening, a fifth opening is installed on the outer wall of the pressure rod, a sixth opening is installed on the outer wall of the threaded sleeve, a first support plate is installed on the inner wall of the threaded sleeve, a fifth spring is installed on the outer wall of the first support plate, a locking rod is installed through the inner wall of the sixth opening, and one end of the fifth spring is connected to the outer wall of the locking rod.

[0015] Preferably, one end of the first spring is connected to the inner wall of the first support column, one end of the first damping block is connected to the inner wall of the first support column, one end of the first bracket extends to the outer wall of the first support column through the second opening, one end of the pressure rod is connected to the outer wall of the scraper, and the threaded rod is fixed by a threaded sleeve.

[0016] Preferably, a sealing assembly is installed on the inner wall of the first flange, a connection port is provided on the outer wall of the first flange, and a second rubber block is installed on the inner wall of the second flange.

[0017] Preferably, the sealing assembly includes a third support rod on the inner wall of the first flange, a fifth sliding sleeve installed on the outer wall of the third support rod, a support plate installed on the outer wall of the fifth sliding sleeve, a sixth spring installed on the outer wall of the support plate, one end of the sixth spring being connected to the inner wall of the first flange, a push post installed on the outer wall of the support plate, one end of the push post extending to the outer wall of the first flange, a push block installed on the outer wall of the support plate, and a first rubber block installed on the inner wall of the first flange.

[0018] Preferably, the operating steps of the expansion joint are as follows:

[0019] S1. The function of the sound-absorbing cotton is to reduce noise. The movement of the expansion joint drives the first support column to move, the movement of the first support column drives the threaded sleeve to move, the movement of the threaded sleeve drives the threaded rod to move, the movement of the threaded rod drives the first support column of the support tube to move, the movement of the first support column drives the first support rod to move, the movement of the first support rod drives the buffer ring to move, the movement of the buffer ring provides cushioning, the movement of the first support column drives the first spring to move, the movement of the first spring causes the first support column to drive the first damping block to move, the movement of the first damping block reduces vibration, thus achieving the function of reducing the noise and vibration of the rubber expansion joint;

[0020] S2. The function of the limit block is to provide a limit for the pusher head. The function of the feeding head is to facilitate the addition of lubricating oil. The pusher head moves the first support and drives the first sliding sleeve to move. The movement of the first sliding sleeve causes the first support to move the second spring. The movement of the second spring causes the first support to move the pusher head. The movement of the pusher head allows the lubricating oil inside the storage box to enter the threaded sleeve through the transmission pipe, thus realizing the function of quickly lubricating the fixing part of the rubber expansion joint and preventing rust.

[0021] S3. The function of the third sealing ring is to prevent lubricating oil from flowing out. Pulling the lever causes it to move through the sixth opening. The movement of the lever drives the fifth spring to move. The movement of the fifth spring causes the lever to move out of the fifth opening. At this time, pulling the pressure rod through the fourth opening drives the scraper head to move. The movement of the scraper head drives the third spring to move. The movement of the third spring causes the scraper head to move away, facilitating the movement of the threaded rod. After installation, resetting the scraper head can prevent lubricating oil from flowing out. The scraper head is arc-shaped, which realizes the function of preventing lubricating fluid from flowing out at the fixed point and reducing waste.

[0022] S4. The first flange and the second flange are fixed by bolts. The movement of the bolts drives the push column to move, the movement of the push column drives the fifth sliding sleeve to move, the movement of the fifth sliding sleeve drives the support plate to move, the movement of the support plate drives the sixth spring to move, the movement of the sixth spring causes the support plate to drive the push block to move, the movement of the push block drives the first rubber block to move, so that the first rubber block and the second rubber block come into contact and seal, thus realizing the function of sealing the connection between the connecting cylinder and the rubber expansion joint to prevent leakage.

[0023] Preferably, step S1 further includes the following steps:

[0024] S11. The function of the second damping block is to provide protection for the support tube, and the function of the through-hole is to facilitate the movement of the first support block. The diameter of the through-hole is larger than the diameter of the first support rod.

[0025] Step S2 also includes the following steps:

[0026] S21. The first sliding sleeve moves with the support of the second support rod, and the function of the second opening is to facilitate the movement of the first support.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. This invention, by installing a buffer ring, sound-absorbing cotton, and a first spring, achieves the effect of reducing the noise and vibration of the rubber expansion joint. The sound-absorbing cotton reduces noise. The movement of the expansion joint drives the movement of the first support column, which in turn drives the movement of the threaded sleeve, which in turn drives the movement of the threaded rod, which in turn drives the movement of the first support column of the support tube, which in turn drives the movement of the first support rod, which in turn drives the movement of the buffer ring. The movement of the buffer ring provides cushioning, and the movement of the first support column drives the movement of the first spring. The movement of the first spring causes the first support column to drive the movement of the first damping block, which in turn reduces vibration. This invention achieves the function of reducing the noise and vibration of the rubber expansion joint.

[0029] 2. This invention, by installing a first sliding sleeve, a second spring, and a first bracket, achieves the effect of quickly lubricating and preventing rust at the fixing point of the rubber expansion joint. The limiting block provides a limit for the pusher head, and the feeding head facilitates the addition of lubricating oil. Pushing the first bracket causes the first sliding sleeve to move, the movement of the first sliding sleeve causes the first bracket to move the second spring, the movement of the second spring causes the first bracket to move the pusher head, and the movement of the pusher head allows the lubricating oil inside the storage box to enter the threaded sleeve through the transmission pipe, thus achieving the function of quickly lubricating and preventing rust at the fixing point of the rubber expansion joint.

[0030] 3. This invention, by installing a scraper head, a pressure rod, and a fifth spring, achieves the effect of preventing lubricant leakage at the fixing point and reducing waste. The function of the third sealing ring is to prevent lubricant from moving out. Pulling the clamping rod causes it to move through the sixth opening. The movement of the clamping rod drives the fifth spring to move. The movement of the fifth spring causes the clamping rod to move out of the fifth opening. At this time, pulling the pressure rod through the fourth opening drives the scraper head to move. The movement of the scraper head drives the third spring to move. The movement of the third spring causes the scraper head to move away, facilitating the movement of the threaded rod. After installation, resetting the scraper head can prevent lubricant from flowing out. The scraper head is arc-shaped, thus achieving the function of preventing lubricant leakage at the fixing point and reducing waste.

[0031] 4. This invention, by installing a sixth spring, a support plate, and a push column, achieves the effect of sealing the connecting cylinder and the rubber expansion joint to prevent leakage. The first flange and the second flange are fixed by bolts. The movement of the bolts drives the push column to move, the movement of the push column drives the fifth sliding sleeve to move, the movement of the fifth sliding sleeve drives the support plate to move, the movement of the support plate drives the sixth spring to move, the movement of the sixth spring causes the support plate to drive the push block to move, the movement of the push block drives the first rubber block to move, so that the first rubber block contacts the second rubber block to seal it, thus achieving the function of sealing the connecting cylinder and the rubber expansion joint to prevent leakage. Attached Figure Description

[0032] Figure 1 This is a front view structural diagram of the present invention;

[0033] Figure 2This is a schematic diagram of the first support column structure of the present invention;

[0034] Figure 3 This is a schematic diagram of structure B of the present invention;

[0035] Figure 4 This is a schematic diagram of the first damping block structure of the present invention;

[0036] Figure 5 This is a schematic diagram of the pusher structure of the present invention;

[0037] Figure 6 This is a schematic diagram of the scraper head structure of the present invention;

[0038] Figure 7 This is a schematic diagram of structure A of the present invention;

[0039] Figure 8 This is a schematic diagram of the pusher block structure of the present invention;

[0040] Figure 9 This is a schematic diagram of the process of the present invention.

[0041] In the diagram: 1. Support tube; 2. First support column; 3. Corrugated tube; 5. Second flange; 6. First flange; 7. Threaded rod; 8. Threaded sleeve; 10. First damping block; 11. First support block; 12. First support rod; 13. Buffer ring; 14. First spring; 15. Second damping block; 16. Sound-absorbing cotton; 18. Storage box; 19. Transmission tube; 20. Limiting block; 21. Push head; 22. Second opening; 23. Second support rod; 24. First sliding sleeve; 25. Second 26. Spring; 27. First bracket; 28. Feeding head; 29. ​​First groove; 30. Third spring; 31. Third sealing ring; 32. Scraper; 33. Fourth opening; 34. Pressure rod; 35. Fifth opening; 36. Locking rod; 37. Fifth spring; 38. First support plate; 39. Third support rod; 40. Fifth sliding sleeve; 41. Support plate; 42. Push column; 43. Sixth spring; 44. Push block; 45. First rubber block; 46. Second rubber block. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] Example 1: Please refer to Figure 1-9 An embodiment of the present invention provides a high-temperature resistant vibration-damping and noise-reducing rubber expansion joint, comprising a support tube 1, a first flange 6, and a corrugated tube 3. Both the support tube 1 and the corrugated tube 3 are internally reinforced with multi-layer nylon paper bags and are vulcanized as a whole to improve temperature resistance. The outer wall of the support tube 1 is fitted with the first flange 6, the outer wall of the first flange 6 is fitted with the second flange 5, and the outer wall of the second flange 5 is fitted with the corrugated tube 3. A noise-reducing component is installed at the top of the support tube 1. A lubrication component is installed on the inner wall of the first support column 2. A threaded sleeve 8 is installed through the outer wall of the first support column 2. A blocking component is installed on the inner wall of the threaded sleeve 8. A threaded rod 7 is installed through the inner wall of the threaded sleeve 8. One end of the first spring 14 is connected to the inner wall of the first support column 2. One end of the first damping block 10 is connected to the inner wall of the first support column 2. One end of the first bracket 26 extends to the outer wall of the first support column 2 through the second opening 22. One end of the pressure rod 33 is connected to the outer wall of the scraper head 31. The threaded rod 7 is fixed by the threaded sleeve 8.

[0046] The noise reduction assembly includes a first support block 11 mounted on the outer wall of a support tube 1, a first support column 2 mounted on the outer wall of the first support block 11, a second damping block 15 mounted on the bottom of the first support column 2, the bottom of the second damping block 15 connected to the outer wall of the support tube 1, a through opening on the outer wall of the first support block 11, a first support rod 12 mounted on the inner wall of the through opening, one end of the first support rod 12 connected to the inner wall of the first support column 2, a buffer ring 13 mounted on the outer wall of the first support rod 12, a first spring 14 mounted on the outer wall of the first support block 11, sound-absorbing cotton 16 mounted on the inner wall of the first support column 2, and a first damping block 10 mounted on the top of the first support block 11. The function of 16 is to reduce noise. The movement of the expansion joint drives the first support column 2 to move, the movement of the first support column 2 drives the threaded sleeve 8 to move, the movement of the threaded sleeve 8 drives the threaded rod 7 to move, the movement of the threaded rod 7 drives the first support column 2 of the support tube 1 to move, the movement of the first support column 2 drives the first support rod 12 to move, the movement of the first support rod 12 drives the buffer ring 13 to move, the movement of the buffer ring 13 provides cushioning, the movement of the first support column 2 drives the first spring 14 to move, the movement of the first spring 14 causes the first support column 2 to drive the first damping block 10 to move, the movement of the first damping block 10 reduces vibration, thus achieving the function of reducing the noise and vibration of the rubber expansion joint.

[0047] The lubrication assembly includes a storage box 18 installed inside the first support column 2. A limit block 20 is installed on the inner wall of the storage box 18. A transmission pipe 19 is installed through the top of the storage box 18, with one end extending to the inner wall of the threaded sleeve 8. A feeding head 27 is installed through the inner wall of the storage box 18. A pusher 21 is installed on the inner wall of the storage box 18. A second support rod 23 is installed on the inner wall of the first support column 2. A first sliding sleeve 24 is installed on the outer wall of the second support rod 23. A first bracket 26 is installed on the outer wall of the first sliding sleeve 24, with one end of the first bracket 26 connected to the bottom of the pusher 21. A second opening 2 is provided on the outer wall of the first support column 2. 2. A second spring 25 is installed on the outer wall of the first bracket 26, and one end of the second spring 25 is connected to the bottom of the storage box 18. The function of the limiting block 20 is to provide a limit for the push head 21. The function of the feeding head 27 is to facilitate the addition of lubricating oil. Pushing the first bracket 26 causes the first sliding sleeve 24 to move. The movement of the first sliding sleeve 24 causes the first bracket 26 to move the second spring 25. The movement of the second spring 25 causes the first bracket 26 to move the push head 21. The movement of the push head 21 causes the lubricating oil inside the storage box 18 to enter the threaded sleeve 8 through the transmission pipe 19, realizing the function of quickly lubricating the fixing part of the rubber expansion joint and preventing rust.

[0048] The blocking assembly includes a first groove 28 inside the threaded sleeve 8, a third spring 29 installed on the inner wall of the first groove 28, a third sealing ring 30 installed on the inner wall of the first groove 28, a scraper 31 installed on the outer wall of the third sealing ring 30, and one end of the third spring 29 connected to the outer wall of the scraper 31. The outer wall of the first groove 28 has a fourth opening 32, a pressure rod 33 is installed through the inner wall of the fourth opening 32, a fifth opening 34 is installed on the outer wall of the pressure rod 33, a sixth opening 35 is installed on the outer wall of the threaded sleeve 8, a first support plate 38 is installed on the inner wall of the threaded sleeve 8, a fifth spring 37 is installed on the outer wall of the first support plate 38, and a fifth spring 37 is installed through the inner wall of the sixth opening 35. There is a locking rod 36, and one end of the fifth spring 37 is connected to the outer wall of the locking rod 36. The function of the third sealing ring 30 is to prevent the lubricating oil from flowing out. Pulling the locking rod 36 makes it move through the sixth opening 35. The movement of the locking rod 36 drives the fifth spring 37 to move. The movement of the fifth spring 37 makes the locking rod 36 move out of the fifth opening 34. At this time, pulling the pressure rod 33 drives the scraper head 31 to move through the fourth opening 32. The movement of the scraper head 31 drives the third spring 29 to move. The movement of the third spring 29 makes the scraper head 31 move away to facilitate the movement of the threaded rod 7. After installation, resetting the scraper head 31 can block the lubricating oil. The scraper head 31 is arc-shaped, which realizes the function of preventing the lubricating fluid from flowing out at the fixed point and reducing waste.

[0049] A sealing assembly is installed on the inner wall of the first flange 6, and a connection port is provided on the outer wall of the first flange 6. A second rubber block 46 is installed on the inner wall of the second flange 5. The sealing assembly includes a third support rod 39 on the inner wall of the first flange 6, a fifth sliding sleeve 40 installed on the outer wall of the third support rod 39, a support plate 41 installed on the outer wall of the fifth sliding sleeve 40, a sixth spring 43 installed on the outer wall of the support plate 41, and one end of the sixth spring 43 is connected to the inner wall of the first flange 6. A push post 42 is installed on the outer wall of the support plate 41, and one end of the push post 42 extends to the outer wall of the first flange 6. Block 44, the inner wall of the first flange 6 is fitted with a first rubber block 45, the first flange 6 and the second flange 5 are fixed by bolts, the bolts move to drive the push column 42 to move, the push column 42 moves to drive the fifth sliding sleeve 40 to move, the fifth sliding sleeve 40 moves to drive the support plate 41 to move, the support plate 41 moves to drive the sixth spring 43 to move, the sixth spring 43 moves to drive the support plate 41 to drive the push block 44 to move, the push block 44 moves to drive the first rubber block 45 to move, so that the first rubber block 45 contacts the second rubber block 46 to seal it, thus realizing the function of sealing the connection between the connecting cylinder and the rubber expansion joint to prevent leakage.

[0050] The working steps of this expansion joint are as follows:

[0051] The function of S1 and sound-absorbing cotton 16 is to reduce noise. The movement of the expansion joint drives the first support column 2 to move, the movement of the first support column 2 drives the threaded sleeve 8 to move, the movement of the threaded sleeve 8 drives the threaded rod 7 to move, the movement of the threaded rod 7 drives the first support column 2 of the support tube 1 to move, the movement of the first support column 2 drives the first support rod 12 to move, the movement of the first support rod 12 drives the buffer ring 13 to move, the movement of the buffer ring 13 provides cushioning, the movement of the first support column 2 drives the first spring 14 to move, the movement of the first spring 14 causes the first support column 2 to drive the first damping block 10 to move, the movement of the first damping block 10 reduces vibration, thus realizing the function of reducing the noise and vibration of the rubber expansion joint;

[0052] S2 and the limiting block 20 provide a limit for the push head 21. The feeding head 27 facilitates the addition of lubricating oil. The pusher 26 drives the first sliding sleeve 24 to move. The movement of the first sliding sleeve 24 causes the first support 26 to drive the second spring 25 to move. The movement of the second spring 25 causes the first support 26 to drive the push head 21 to move. The movement of the push head 21 causes the lubricating oil inside the storage box 18 to enter the threaded sleeve 8 through the transmission pipe 19, thus realizing the function of quickly lubricating the fixing part of the rubber expansion joint to prevent rust.

[0053] The function of S3 and the third sealing ring 30 is to prevent lubricating oil from flowing out. Pulling the locking rod 36 causes it to move through the sixth opening 35. The movement of the locking rod 36 drives the fifth spring 37 to move. The movement of the fifth spring 37 causes the locking rod 36 to move out of the fifth opening 34. At this time, pulling the pressure rod 33 causes the scraper head 31 to move through the fourth opening 32. The movement of the scraper head 31 drives the third spring 29 to move. The movement of the third spring 29 causes the scraper head 31 to move away, which facilitates the movement of the threaded rod 7. After installation, resetting the scraper head 31 can prevent lubricating oil from flowing out. The scraper head 31 is arc-shaped, which realizes the function of preventing lubricating fluid from flowing out at the fixed point and reducing waste.

[0054] S4, the first flange 6 and the second flange 5 are fixed by bolts. The movement of the bolts drives the push column 42 to move, the movement of the push column 42 drives the fifth sliding sleeve 40 to move, the movement of the fifth sliding sleeve 40 drives the support plate 41 to move, the movement of the support plate 41 drives the sixth spring 43 to move, the movement of the sixth spring 43 causes the support plate 41 to drive the push block 44 to move, the movement of the push block 44 drives the first rubber block 45 to move, so that the first rubber block 45 contacts the second rubber block 46 to seal it, thus realizing the function of sealing the connection between the connecting cylinder and the rubber expansion joint to prevent leakage.

[0055] Step S1 also includes the following steps:

[0056] The function of S11 and the second damping block 15 is to provide protection for the support tube 1. The function of the through opening is to facilitate the movement of the first support block 11. The diameter of the through opening is larger than the diameter of the first support rod 12.

[0057] Step S2 also includes the following steps:

[0058] S21, the first sliding sleeve 24 moves with the support of the second support rod 23, and the function of the second opening 22 is to facilitate the movement of the first bracket 26.

[0059] Working principle: Both support tube 1 and corrugated tube 3 are internally reinforced with multiple layers of nylon paper bags and vulcanized as a whole to improve temperature resistance. The sound-absorbing cotton 16 reduces noise. The movement of the expansion joint drives the first support column 2 to move, which in turn drives the threaded sleeve 8 to move. The threaded sleeve 8 then drives the threaded rod 7 to move, which in turn drives the first support column 2 of support tube 1 to move. The movement of the first support column 2 drives the first support rod 12 to move, which in turn drives the buffer ring 13 to move. The movement of the buffer ring 13 provides cushioning, and the movement of the first support column 2 drives the first spring 14 to move. The movement of spring 14 causes the first support column 2 to move, which in turn moves the first damping block 10. The movement of the first damping block 10 reduces vibration, thus reducing the noise and vibration of the rubber expansion joint. The limiting block 20 provides a limit for the push head 21. The feeding head 27 facilitates the addition of lubricating oil. The first support 26 is pushed, causing the first sliding sleeve 24 to move. The movement of the first sliding sleeve 24 causes the first support 26 to move, which in turn causes the second spring 25 to move. The movement of the second spring 25 causes the first support 26 to move, which in turn causes the push head 21 to move. The movement of the push head 21 allows the lubricating oil inside the storage box 18 to enter the threaded section through the transmission pipe 19. Inside sleeve 8, the function of quickly lubricating and preventing rust at the fixing point of the rubber expansion joint is realized. The function of the third sealing ring 30 is to prevent the lubricating oil from flowing out. Pulling the locking rod 36 causes it to move through the sixth opening 35. The movement of the locking rod 36 drives the fifth spring 37 to move. The movement of the fifth spring 37 causes the locking rod 36 to move out of the fifth opening 34. At this time, pulling the pressure rod 33 causes the scraper head 31 to move through the fourth opening 32. The movement of the scraper head 31 drives the third spring 29 to move. The movement of the third spring 29 causes the scraper head 31 to move away, facilitating the movement of the threaded rod 7. After installation, resetting the scraper head 31 can prevent the lubricating oil from flowing out. The scraper head 31 is arc-shaped. This achieves the function of preventing lubricant leakage at the fixed point and reducing waste. The first flange 6 and the second flange 5 are fixed by bolts. The movement of the bolts drives the push column 42 to move, the movement of the push column 42 drives the fifth sliding sleeve 40 to move, the movement of the fifth sliding sleeve 40 drives the support plate 41 to move, the movement of the support plate 41 drives the sixth spring 43 to move, the movement of the sixth spring 43 causes the support plate 41 to drive the push block 44 to move, the movement of the push block 44 drives the first rubber block 45 to move, so that the first rubber block 45 contacts the second rubber block 46 to seal it, thus achieving the function of sealing the connection between the connecting cylinder and the rubber expansion joint to prevent leakage.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-temperature-resistant, vibration-damping and noise-reducing rubber expansion joint comprising a support pipe (1), a first flange (6) and a corrugated pipe (3), characterized in that: The outer wall of the support pipe (1) is provided with a first flange (6), the outer wall of the first flange (6) is provided with a second flange (5), the outer wall of the second flange (5) is provided with a corrugated pipe (3), and the top of the support pipe (1) is provided with a noise reduction assembly; The noise reduction assembly comprises a first support block (11) provided on the outer wall of the support pipe (1), a first support column (2) provided on the outer wall of the first support block (11), a second damping block (15) provided at the bottom of the first support column (2), and a connecting portion between the bottom of the second damping block (15) and the outer wall of the support pipe (1), a through hole provided on the outer wall of the first support block (11), a first supporting rod (12) provided on the inner wall of the through hole, and a connecting portion between one end of the first supporting rod (12) and the inner wall of the first support column (2), and a buffer ring (13) provided on the outer wall of the first supporting rod (12). The outer wall of the first support block (11) is provided with a first spring (14), the inner wall of the first support column (2) is provided with sound-absorbing cotton (16), and the top of the first support block (11) is provided with a first damping block (10). The inner wall of the first support column (2) is provided with a lubricating assembly, the outer wall of the first support column (2) is provided with a threaded sleeve (8), the inner wall of the threaded sleeve (8) is provided with a blocking assembly, and the inner wall of the threaded sleeve (8) is provided with a threaded rod (7). The lubricating assembly comprises a receiving box (18) provided in the first support column (2), a limiting block (20) provided on the inner wall of the receiving box (18), a transmission pipe (19) provided at the top of the receiving box (18) and extending to the inner wall of the threaded sleeve (8), a feeding head (27) provided on the inner wall of the receiving box (18), a pushing head (21) provided on the inner wall of the receiving box (18), a second supporting rod (23) provided in the first support column (2), a first sliding sleeve (24) provided on the outer wall of the second supporting rod (23), a first support frame (26) provided on the outer wall of the first sliding sleeve (24), a connecting portion between one end of the first support frame (26) and the bottom of the pushing head (21), a second opening (22) provided on the outer wall of the first support column (2), a second spring (25) provided on the outer wall of the first support frame (26), and a connecting portion between one end of the second spring (25) and the bottom of the receiving box (18).

2. The high-temperature-resistant, vibration-reducing, and noise-reducing rubber expansion joint according to claim 1, characterized in that: The blocking assembly comprises a first groove (28) in the threaded sleeve (8), a third spring (29) is mounted on the inner wall of the first groove (28), a third sealing ring (30) is mounted on the inner wall of the first groove (28), a scraping head (31) is mounted on the outer wall of the third sealing ring (30), one end of the third spring (29) is connected with the outer wall of the scraping head (31), a fourth opening (32) is arranged on the outer wall of the first groove (28), a pressing rod (33) is penetratingly mounted on the inner wall of the fourth opening (32), a fifth opening (34) is arranged on the outer wall of the pressing rod (33), a sixth opening (35) is arranged on the outer wall of the threaded sleeve (8), a first supporting plate (38) is mounted on the inner wall of the threaded sleeve (8), a fifth spring (37) is mounted on the outer wall of the first supporting plate (38), a clamping rod (36) is penetratingly mounted on the inner wall of the sixth opening (35), and one end of the fifth spring (37) is connected with the outer wall of the clamping rod (36).

3. The high-temperature-resistant, vibration-reducing, and noise-reducing rubber expansion joint according to any one of claims 1-2, characterized in that: One end of the first spring (14) is connected with the inner wall of the first supporting column (2), one end of the first damping block (10) is connected with the inner wall of the first supporting column (2), one end of the first support (26) extends to the outer wall of the first supporting column (2) through the second opening (22), one end of the pressing rod (33) is connected with the outer wall of the scraping head (31), and the threaded rod (7) is fixed through the threaded sleeve (8).

4. The high-temperature-resistant, vibration-reducing, and noise-reducing rubber expansion joint according to claim 3, characterized in that: The inner wall of the first flange (6) is provided with a sealing assembly, the outer wall of the first flange (6) is provided with a connecting port, and the inner wall of the second flange (5) is provided with a second rubber block (46).

5. The high-temperature-resistant, vibration-reducing, and noise-reducing rubber expansion joint according to claim 4, characterized in that: The sealing assembly comprises a third supporting rod (39) on the inner wall of the first flange (6), a fifth sliding sleeve (40) mounted on the outer wall of the third supporting rod (39), a supporting plate (41) mounted on the outer wall of the fifth sliding sleeve (40), a sixth spring (43) mounted on the outer wall of the supporting plate (41), one end of the sixth spring (43) connected with the inner wall of the first flange (6), a pushing column (42) mounted on the outer wall of the supporting plate (41), one end of the pushing column (42) extending to the outer wall of the first flange (6), a pushing block (44) mounted on the outer wall of the supporting plate (41), and a first rubber block (45) mounted on the inner wall of the first flange (6).

6. The use of a high-temperature-resistant, vibration-reducing, and noise-reducing rubber expansion joint according to claim 5, characterized in that, The working steps of the expansion joint are as follows: S1, the sound-absorbing cotton (16) reduces noise, the expansion joint moves to drive the first supporting column (2) to move, the first supporting column (2) moves to drive the threaded sleeve (8) to move, the threaded sleeve (8) moves to drive the threaded rod (7) to move, the threaded rod (7) moves to drive the first supporting column (2) of the supporting pipe (1) to move, the first supporting column (2) moves to drive the first supporting rod (12) to move, the first supporting rod (12) moves to drive the buffer ring (13) to move, the buffer ring (13) moves to be buffered, the first supporting column (2) moves to drive the first spring (14) to move, the first spring (14) moves to drive the first supporting column (2) to move the first damping block (10), the first damping block (10) moves to reduce vibration, and the function of reducing noise and vibration of the rubber expansion joint is realized. S2, the role of the limiting block (20) is to provide a limit for the push head (21), the role of the feeding head (27) is to facilitate the addition of lubricating oil, the first support (26) drives the first sliding sleeve (24) to move, the first sliding sleeve (24) moves to drive the first support (26) to move, the second spring (25) moves to drive the first support (26) to move, the push head (21) moves to make the lubricating oil in the storage box (18) enter the threaded sleeve (8) through the transmission pipe (19), realizing the function of quickly lubricating the fixed part of the rubber expansion joint to prevent rust; S3, the role of the third sealing ring (30) is to prevent the lubricating oil from moving out, pulling the clamping rod (36) to move through the sixth opening (35), the clamping rod (36) moves to drive the fifth spring (37) to move, the fifth spring (37) moves to make the clamping rod (36) move out of the fifth opening (34), at this time, pulling the pressing rod (33) through the fourth opening (32) drives the scraping head (31) to move, the scraping head (31) moves to drive the third spring (29) to move, the third spring (29) moves to make the scraping head (31) move away to facilitate the movement of the threaded rod (7), after installation, the scraping head (31) is reset to block the lubricating oil scraping head (31), which is arc-shaped, realizing the function of preventing the lubricating liquid at the fixed part from flowing out to reduce waste; S4, the first flange (6) and the second flange (5) are fixed by bolts, the movement of the bolts drives the push column (42) to move, the push column (42) moves to drive the fifth sliding sleeve (40) to move, the fifth sliding sleeve (40) moves to drive the supporting plate (41) to move, the supporting plate (41) moves to drive the sixth spring (43) to move, the sixth spring (43) moves to make the supporting plate (41) drive the push block (44) to move, the push block (44) moves to drive the first rubber block (45) to move, so that the first rubber block (45) contacts the second rubber block (46) to seal, realizing the function of sealing connection between the connecting cylinder and the rubber expansion joint to prevent liquid leakage.

7. The use of a high-temperature-resistant, vibration-reducing, and noise-reducing rubber expansion joint according to claim 6, characterized in that In the step S1, the following steps are further included: S11, the role of the second damping block (15) is to provide protection for the supporting pipe (1), the role of the through hole is to facilitate the movement of the first support block (11), the diameter of the through hole is greater than the diameter of the first support rod (12); In the step S2, the following steps are further included: S21, the first sliding sleeve (24) moves through the support of the second support rod (23), and the second opening (22) facilitates the movement of the first support (26).

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