Leakage-proof corrugated pipe
By setting through holes and connectors at both ends of the bellows body, combined with guide grooves, guide posts and rubber gaskets, the problem of gas leakage caused by unstable bellows connection is solved, and a more stable and sealed connection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-03
AI Technical Summary
The existing corrugated pipe connection structure is not stable enough, is prone to loosening leading to gas leakage, and is also prone to gaps at the connection.
The first and second connectors are respectively provided with through holes at both ends of the bellows body, and are fixedly connected in multiple directions through the through connectors. The connection stability and sealing are improved by combining the guide groove and guide post, sealing part and arc rubber gasket.
This design achieves multi-directional fixation of the bellows connection structure, improving the stability and sealing of the connection and preventing gas leakage and spark generation.
Smart Images
Figure CN223965073U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of corrugated pipe technology, and in particular to a leak-proof corrugated pipe. Background Technology
[0002] Corrugated pipes are widely used for transporting gases. When two adjacent corrugated pipes are spliced, flanges are usually connected to both ends of the corrugated pipe. The flanges of the two adjacent corrugated pipes are fixed with bolts to complete the connection between the two corrugated pipes. The bolts are usually inserted in one direction, which makes the connection structure between the corrugated pipes unstable. Gaps can easily form between the flanges due to loosening, causing the gas transported inside the corrugated pipe to leak. Utility Model Content
[0003] This application provides a leak-proof bellows with better sealing performance.
[0004] The leak-proof corrugated pipe provided in this application adopts the following technical solution:
[0005] A leak-proof corrugated pipe includes a corrugated pipe body, a first connector, a second connector, a first through-hole, and a second through-hole. The first connector includes a first mounting ring and a convex ring. The first mounting ring is connected to a first end of the corrugated pipe body and has a first through-hole along the length of the corrugated pipe body. The convex ring is located on the inner circumference of the first mounting ring and protrudes relative to the first mounting ring. A second through-hole is formed on the outer circumference of the convex ring along the radial direction of the convex ring. The second connector includes a second mounting ring, which is sleeved on the outer circumference of the end face of the second end of the corrugated pipe body. The second mounting ring has a third through-hole along the length of the corrugated pipe body and a fourth through-hole along the radial direction of the second mounting ring. The convex ring is used to abut against the end face of the second end of the corrugated pipe body. The first through-hole is used to pass through the first through-hole and the third through-hole, and the second through-hole is used to pass through the second through-hole and the fourth through-hole.
[0006] Preferably, the convex ring includes a convex ring body and a sealing part. The convex ring body is connected to the first mounting ring, and the sealing part is located at the end of the convex ring body away from the first mounting ring and abuts against the end face of the second end of the bellows body.
[0007] Preferably, the outer wall of the convex ring body is provided with guide posts along the length direction of the corrugated pipe;
[0008] The inner wall of the second mounting ring has a guide groove formed along the length of the corrugated pipe, and the guide post is embedded in the guide groove.
[0009] Preferably, a rubber pad is provided at the end of the fourth through hole away from the second through hole. The rubber pad is an arc-shaped structure that matches the outer circumference of the second mounting ring. The second through member is sequentially inserted into the rubber pad, the fourth through hole, and the second through hole.
[0010] Preferably, the corrugated pipe body is fitted with an anti-corrosion protective layer, and the inner wall of the anti-corrosion protective layer has protrusions that match the troughs of the corrugated pipe body.
[0011] Preferably, the outer wall of the anti-corrosion protective layer is formed with a relief groove along the length of the corrugated pipe body, and the relief groove is located between the first through hole and the third through hole.
[0012] In summary, this application includes at least one of the following beneficial technical effects:
[0013] 1. This application fixes the connection structure of the two leak-proof bellows axially by setting a first through hole and a third through hole formed along the length of the bellows body, and a first through hole inserted into the first through hole and the third through hole. A second through hole is formed radially along the first convex ring, and a fourth through hole is formed radially along the second mounting ring, and a second through hole inserted into the second through hole and the fourth through hole. This fixes the connection structure in multiple directions, making the connection structure of the two leak-proof bellows more stable and less prone to loosening, thus avoiding the problem of gas leakage during gas transportation.
[0014] 2. By setting a sealing part, the sealing performance of the connection structure between two adjacent leak-proof bellows is enhanced, and sparks are less likely to be generated due to collisions during the connection process.
[0015] 3. By setting guide posts and guide grooves, installation and operation are facilitated, and the two leak-proof bellows are less likely to rotate axially relative to each other, thus improving the stability of the connection structure.
[0016] 4. By setting an arc-shaped rubber pad, the second insert is less likely to form a gap with the second mounting ring after it is inserted into the fourth insert hole, thus improving the sealing performance. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application.
[0018] Figure 2 This is a cross-sectional view of a preferred embodiment of this application.
[0019] Figure 3 This is a schematic diagram of the connection structure of two leak-proof corrugated pipes in a preferred embodiment of this application.
[0020] Figure 4 This is a cross-sectional view of the connection structure of two leak-proof bellows in a preferred embodiment of this application.
[0021] Explanation of reference numerals in the attached drawings: 1. Corrugated pipe body; 2. First connector; 21. First mounting ring; 211. First through hole; 22. Convex ring; 221. Second through hole; 222. Convex ring body; 223. Sealing part; 224. Guide post; 3. Second connector; 31. Second mounting ring; 311. Third through hole; 312. Fourth through hole; 313. Guide groove; 4. First through piece; 5. Second through piece; 6. Rubber pad; 7. Anti-corrosion protective layer; 71. Clearance groove. Detailed Implementation
[0022] The present application will be further described in detail below with reference to the accompanying drawings.
[0023] This application provides a leak-proof corrugated pipe, such as Figures 1 to 4 As shown, the device includes a bellows body 1, a first connector 2, a second connector 3, a first through-hole 4, and a second through-hole 5. The first connector 2 includes a first mounting ring 21 and a protruding ring 22. The first mounting ring 21 is connected to the first end of the bellows body 1 and has a first through-hole 211 along the length of the bellows body 1. The protruding ring 22 is located on the inner circumference of the first mounting ring 21 and protrudes relative to the first mounting ring 21. A second through-hole 221 is formed on the outer circumference of the protruding ring 22 along the radial direction of the protruding ring 22. The second connector... 3 includes a second mounting ring 31, which is sleeved on the outer periphery of the end face of the second end of the bellows body 1. The second mounting ring 31 has a third through hole 311 along the length direction of the bellows body 1 and a fourth through hole 312 along the radial direction of the second mounting ring 31. The convex ring 22 abuts against the end face of the second end of the bellows body 1. The first through member 4 passes through the first through hole 211 and the third through hole 311, and the second through member 5 passes through the second through hole 221 and the fourth through hole 312.
[0024] When splicing two leak-proof corrugated pipes according to this application, the splicing is achieved by connecting the first connector 2 and the second connector 3. Specifically, the first connector 2 of one leak-proof corrugated pipe moves along the length of the corrugated pipe body 1 toward the second connector 3 of the other leak-proof corrugated pipe. The convex ring 22 passes into the second mounting ring 31 and abuts against the end face of the second end of the corrugated pipe body 1. The first mounting ring 21 is attached to the second mounting ring 31. The leak-proof corrugated pipe is axially rotated so that the first through hole 211 is coaxial with the third through hole 311, the second through hole 221 is coaxial with the fourth through hole 312, the first through member 4 passes into the first through hole 211 and the third through hole 311, and the second through member 5 passes into the second through hole 221 and the fourth through hole 312, thus completing the connection of the two leak-proof corrugated pipes.
[0025] This application discloses a leak-proof corrugated pipe. A first through hole 211 and a third through hole 311 are formed along the length of the corrugated pipe body 1. A first through member 4 passes through the first through hole 211 and the third through hole 311, thus fixing the connection structure of two leak-proof corrugated pipes axially. A second through hole 221 is formed radially along the first convex ring 22, and a fourth through hole 312 is formed radially along the second mounting ring 31. A second through member 5 passes through the second through hole 221 and the fourth through hole 312, thus... The connection structure of the two leak-proof corrugated pipes is fixed in the radial direction. Compared with the prior art, the leak-proof corrugated pipe of this application fixes the connection structure in multiple directions, making the connection structure of the two leak-proof corrugated pipes more stable and less prone to loosening. A convex ring 22 is provided to abut against the end face of the second end of the corrugated pipe body 1, and a second mounting ring 31 is provided on the outer periphery of the end face of the second end. The connection between the convex ring 22 and the end face of the second end is located inside the second mounting ring 31, which improves the airtightness and effectively avoids the problem of gas leakage during gas transportation.
[0026] The first through hole 211, the third through hole 311 and the fourth through hole 312 are through holes, the second through hole 221 is a blind hole, the first through member 4 includes a first bolt and a first nut is connected to the first bolt, and the second through member 5 includes a second bolt.
[0027] The convex ring 22 includes a convex ring 22 body and a sealing part 223. The convex ring 22 body is connected to the first mounting ring 21. The sealing part 223 is located at the end of the convex ring 22 body away from the first mounting ring 21 and abuts against the end face of the second end of the bellows body 1. Specifically, the convex ring 22 body is coaxially arranged with the first mounting ring 21 and integrally cast with the first mounting ring 21. The cross-sectional dimension of the convex ring 22 body is smaller than the cross-sectional dimension of the first mounting ring 21. The sealing part 223 is a sealing ring, which is fixed at the end of the convex ring 22 body away from the first mounting ring 21. The sealing ring is used to abut against the end face of the second end of another leak-proof bellows. In this way, by setting the sealing part 223, the sealing performance of the connection structure between two adjacent leak-proof bellows is strengthened, and sparks are less likely to be generated due to collision during the connection process.
[0028] The outer wall of the main body of the convex ring 22 is provided with guide posts 224 along the length of the corrugated pipe; the inner wall of the second mounting ring 31 is formed with guide grooves 313 along the length of the corrugated pipe, and the guide posts 224 are embedded in the guide grooves 313. There are multiple guide posts 224, which are evenly arranged circumferentially on the outer wall of the main body of the convex ring 22. The number of guide grooves 313 corresponds one-to-one with the number of guide posts 224. The multiple guide grooves 313 are evenly arranged circumferentially on the inner wall of the second mounting ring 31. During the splicing of the two leak-proof corrugated pipes, one leak-proof corrugated pipe approaches the other leak-proof corrugated pipe along the length of the corrugated pipe body 1. The multiple guide posts 224 are inserted one-to-one along the length of the corrugated pipe body 1 into the guide grooves 313. This facilitates the installation operation, and the cooperation between the guide grooves 313 and the guide posts 224 makes it difficult for the two leak-proof corrugated pipes to rotate axially relative to each other, thus improving the stability of the connection structure.
[0029] A rubber pad 6 is provided at the end of the fourth through hole 312 away from the second through hole 221. The rubber pad 6 has an arc-shaped structure that matches the outer circumference of the second mounting ring 31. The second through member 5 is sequentially inserted into the rubber pad 6, the fourth through hole 312, and the second through hole 221. In this way, by providing the arc-shaped rubber pad 6, the second through member 5 is less likely to form a gap with the second mounting ring 31 after being inserted into the fourth through hole 312, thus improving the sealing performance.
[0030] The corrugated pipe body 1 is fitted with an anti-corrosion protective layer 7. The inner wall of the anti-corrosion protective layer 7 has protrusions that match the troughs of the corrugated pipe body 1. The protrusions are embedded in the troughs of the corrugated pipe body 1, and the crests of the corrugated pipe body 1 abut against the inner wall of the anti-corrosion protective layer 7. The protrusions play a role in increasing the sealing performance.
[0031] The outer wall of the anti-corrosion protective layer 7 is formed with a relief groove along the length of the corrugated pipe body 1. The relief groove is located between the first through hole 211 and the third through hole 311, so that the first through hole 4 can be easily inserted between the first through hole 211 and the third through hole 311.
[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A leak-proof corrugated pipe, characterized in that: It includes a bellows body (1), a first connector (2), a second connector (3), a first through-hole component (4), and a second through-hole component (5); The first connector (2) includes a first mounting ring (21) and a convex ring (22). The first mounting ring (21) is connected to the first end of the bellows body (1) and has a first through hole (211) along the length direction of the bellows body (1). The convex ring (22) is located on the inner circumference of the first mounting ring (21) and protrudes relative to the first mounting ring (21). The outer circumference of the convex ring (22) has a second through hole (221) formed along the radial direction of the convex ring (22). The second connector (3) includes a second mounting ring (31), which is sleeved on the outer periphery of the end face of the second end of the corrugated pipe body (1). The second mounting ring (31) has a third through hole (311) along the length direction of the corrugated pipe body (1) and a fourth through hole (312) along the radial direction of the second mounting ring (31). The convex ring (22) is used to abut against the end face of the second end of the bellows body (1), the first through member (4) is used to pass through the first through hole (211) and the third through hole (311), and the second through member (5) is used to pass through the second through hole (221) and the fourth through hole (312).
2. The leak-proof corrugated pipe according to claim 1, characterized in that: The convex ring (22) includes a convex ring (22) body and a sealing part (223). The convex ring (22) body is connected to the first mounting ring (21), and the sealing part (223) is located at one end of the convex ring (22) body away from the first mounting ring (21) and abuts against the end face of the second end of the bellows body (1).
3. The leak-proof corrugated pipe according to claim 2, characterized in that: The outer wall of the main body of the convex ring (22) is provided with guide posts (224) along the length direction of the corrugated pipe; The inner wall of the second mounting ring (31) is formed with a guide groove (313) along the length of the corrugated pipe, and the guide post (224) is embedded in the guide groove (313).
4. The leak-proof corrugated pipe according to claim 1, characterized in that: A rubber pad (6) is provided at the end of the fourth through hole (312) away from the second through hole (221). The rubber pad (6) is an arc-shaped structure that matches the outer circumference of the second mounting ring (31). The second through member (5) is sequentially inserted into the rubber pad (6), the fourth through hole (312), and the second through hole (221).
5. A leak-proof corrugated pipe according to claim 1, characterized in that: The corrugated pipe body (1) is fitted with an anti-corrosion protective layer (7), and the inner wall of the anti-corrosion protective layer (7) has protrusions that match the troughs of the corrugated pipe body (1).
6. The leak-proof corrugated pipe according to claim 5, characterized in that: The outer wall of the anti-corrosion protective layer (7) is formed with a relief groove along the length of the corrugated pipe body (1), and the relief groove is located between the first through hole (211) and the third through hole (311).