A pressure-resistant corrugated pipe
By connecting the bellows through a snap-fit mechanism, the problems of slippage and poor sealing at the bellows connection are solved, enabling convenient disassembly and improved sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN JIEYIXIN PIPE IND CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-09
Smart Images

Figure CN224339707U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated pipe technology, specifically a pressure-resistant corrugated pipe. Background Technology
[0002] Corrugated pipes are tubular elastic sensitive elements made of foldable corrugated sheets connected along the folding and stretching direction. They are widely used in industries such as petrochemicals, instrumentation, aerospace, chemicals, power, cement, and metallurgy. Large-diameter corrugated pipes are widely used in municipal drainage and sewage pipeline systems.
[0003] Corrugated pipes generally come in a certain length. When users want a longer corrugated pipe, they need to connect multiple corrugated pipes. Most corrugated pipes are connected by threads. As the corrugated pipes are used for a long time, the connecting threads between the corrugated pipes will rust. This will cause the threads between the two corrugated pipes to strip, making it more troublesome to disassemble the corrugated pipes later. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a pressure-resistant corrugated pipe that can connect two corrugated pipes together without using threaded connections, thus preventing stripping at the connection point and making subsequent disassembly of the corrugated pipes more time-saving and labor-saving.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a pressure-resistant corrugated pipe, comprising a corrugated pipe body, two corrugated pipe bodies arranged front and rear, and the connection structure of the two corrugated pipe bodies being identical;
[0008] A first rubber pad is fixedly connected to the front side of the corrugated pipe body, and a second rubber pad is fixedly connected to the rear side of the corrugated pipe body. A first fixing ring is fixedly sleeved on the outer surface of the corrugated pipe body, the front side of the first fixing ring extends past the front side of the corrugated pipe body, and a second fixing ring is fixedly sleeved on the outer surface of the corrugated pipe body.
[0009] The first and second fixing rings are equipped with a snap-fit mechanism, which allows the two bellows bodies to be connected together.
[0010] The locking mechanism includes a limiting ring groove, a connecting ring groove, two connecting grooves, a limiting ring, two connecting blocks, two limiting blocks, and two take-out grooves.
[0011] Preferably, the limiting ring groove is formed inside the first fixed ring, and the connecting ring groove is formed on the front side of the first fixed ring;
[0012] The connecting ring groove is located on the front side of the limiting ring groove, and the inside of the connecting ring groove is connected to the inside of the limiting ring groove.
[0013] Preferably, both connecting slots are formed on the front side of the first fixing ring, and the two connecting slots are arranged symmetrically from left to right;
[0014] Both connecting grooves are connected to the inside of the connecting ring groove, and both connecting grooves are also connected to the inside of the limiting ring groove.
[0015] Preferably, the limiting ring is fixedly sleeved on the outer surface of the second fixed ring, and the rear side of the limiting ring extends past the rear side of the bellows body.
[0016] The limiting ring is adapted to the connecting ring groove, and the rear side of the limiting ring can extend into the interior of the limiting ring groove.
[0017] Preferably, the two connecting blocks are respectively fixedly sleeved on the outer surface of the limiting ring, and the two connecting blocks are respectively arranged symmetrically above and below;
[0018] The two connecting blocks are respectively adapted to the two connecting slots, and the two connecting slots can move into the inside of the limiting ring slot.
[0019] Preferably, the two limiting blocks are respectively inserted into the interior of the two connecting slots, and the two take-out slots are respectively opened on the left side of the two limiting blocks.
[0020] Preferably, two limiting blocks extend from the right walls of the two extraction slots, and the insertion between the limiting blocks and the connecting slots is relatively tight.
[0021] (III) Beneficial Effects
[0022] Compared with the prior art, the present invention provides a pressure-resistant corrugated pipe, which has the following beneficial effects:
[0023] (1) For this pressure-resistant corrugated pipe, the limiting block is removed from the inside of the connecting groove, and then the corrugated pipe body is rotated. The corrugated pipe body drives the second fixing ring to rotate. After transmission, the two connecting blocks will move to the positions of the two connecting grooves. Then, the corrugated pipe body is pulled forward, and the two connecting blocks will be successfully removed from the inside of the limiting ring groove through the connecting groove, thus completing the disassembly of the corrugated pipe body. During installation, two or more corrugated pipe bodies can be connected in the above manner. In this way, two corrugated pipe bodies can be connected together without threaded connection, so that the connection of the corrugated pipe body will not have stripping, thus making it more time-saving and labor-saving to disassemble the corrugated pipe body later.
[0024] (2) The pressure-resistant corrugated pipe has a take-out groove on the left side of both limiting blocks, so that when disassembling the corrugated pipe body, the insertion between the limiting blocks and the connecting groove is relatively tight, so it can be taken out quickly and conveniently through the take-out groove, which further improves the disassembly convenience of the corrugated pipe body. At the same time, the connection between the first rubber pad and the second rubber pad improves the sealing performance of the corrugated pipe body. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of a pressure-resistant corrugated pipe structure according to the present invention;
[0026] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the first fixing ring of this utility model;
[0027] Figure 3 This is a schematic diagram of the cross-sectional connection structure of the limiting ring of this utility model;
[0028] Figure 4 for Figure 1 Enlarged diagram of point A.
[0029] In the figure: 1. Corrugated pipe body; 2. First rubber pad; 3. First fixing ring; 4. Limiting ring groove; 5. Connecting ring groove; 6. Connecting groove; 7. Second rubber pad; 8. Second fixing ring; 9. Limiting ring; 10. Connecting block; 11. Limiting block; 12. Removal groove. Detailed Implementation
[0030] 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.
[0031] Please see Figures 1 to 4This utility model provides a new technical solution: a pressure-resistant corrugated pipe, including two corrugated pipe bodies 1, which are arranged one in front of the other. The two corrugated pipe bodies 1 have the same connection structure. The following description focuses on the front corrugated pipe body 1. A first rubber pad 2 is fixedly connected to the front side of the corrugated pipe body 1, and a second rubber pad 7 is fixedly connected to the rear side of the corrugated pipe body 1. A first fixing ring 3 is fixedly sleeved on the outer surface of the corrugated pipe body 1. The front side of the first fixing ring 3 extends past the front side of the corrugated pipe body 1. A second fixing ring 8 is fixedly sleeved on the outer surface of the corrugated pipe body 1. A snap-fit mechanism is provided on the first fixing ring 3 and the second fixing ring 8. The two corrugated pipe bodies 1 can be connected together through the snap-fit mechanism. The snap-fit mechanism includes a limiting ring groove 4, a connecting ring groove 5, two connecting grooves 6, a limiting ring 9, two connecting blocks 10, two limiting blocks 11, and two take-out grooves 12.
[0032] Furthermore, the limiting ring groove 4 is formed inside the first fixed ring 3, and the connecting ring groove 5 is formed on the front side of the first fixed ring 3. The connecting ring groove 5 is set on the front side of the limiting ring groove 4, and the interior of the connecting ring groove 5 is connected to the interior of the limiting ring groove 4. Two connecting grooves 6 are formed on the front side of the first fixed ring 3, and the two connecting grooves 6 are arranged symmetrically from left to right. Both connecting grooves 6 are connected to the interior of the connecting ring groove 5, and both connecting grooves 6 are also connected to the interior of the limiting ring groove 4. The limiting ring 9 is fixedly sleeved on the outer surface of the second fixed ring 8, and the rear side of the limiting ring 9 extends past the rear side of the bellows body 1. The limiting ring 9 and the connecting ring The groove 5 is adapted to the limit ring 9, and the rear side of the limit ring 9 can extend into the interior of the limit ring groove 4. The two connecting blocks 10 are fixedly sleeved on the outer surface of the limit ring 9. The two connecting blocks 10 are arranged symmetrically up and down. The two connecting blocks 10 are adapted to the two connecting grooves 6. The two connecting grooves 6 can move into the interior of the limit ring groove 4. The two limit blocks 11 are inserted into the interior of the two connecting grooves 6. The two take-out grooves 12 are respectively opened on the left side of the two limit blocks 11. The right wall of the two take-out grooves 12 extends out of the two limit blocks 11. The insertion between the limit blocks 11 and the connecting grooves 6 is relatively tight.
[0033] Furthermore, when it is necessary to disassemble the bellows body 1, the worker inserts the disassembly tool into the removal slot 12, and then pulls the disassembly tool forward to remove the limiting block 11. The limiting block 11 can then be removed from the connecting slot 6. The other limiting block 11 is then removed in the same way. Thus, the two connecting blocks 10 inside the limiting ring slot 4 are no longer limited. The bellows body 1 is then rotated, causing the second fixing ring 8 to rotate. The second fixing ring 8 causes the limiting ring 9 to rotate synchronously, and the limiting ring 9 causes the two connecting blocks 10 to rotate synchronously. Therefore, the two connecting blocks 10 will move to two... After connecting the groove 6, pull the bellows body 1 forward. The two connecting blocks 10 will then pass smoothly through the connecting groove 6 and be removed from the inside of the limiting ring groove 4, thus completing the disassembly of the bellows body 1. During installation, two or more bellows bodies 1 can be connected in the same way. At the same time, the connection between the first rubber pad 2 and the second rubber pad 7 improves the sealing performance of the bellows body 1. In this way, two bellows bodies 1 can be connected together without threaded connection, thus preventing stripping at the connection of the bellows bodies 1. This also makes the subsequent disassembly of the bellows body 1 more time-saving and labor-saving.
[0034] Working principle: When it is necessary to disassemble the bellows body 1, the worker inserts the disassembly tool into the extraction slot 12, and then pulls the disassembly tool forward to remove the limiting block 11. The limiting block 11 can then be removed from the inside of the connecting slot 6. Then, the other limiting block 11 is removed in the same way. Thus, the two connecting blocks 10 inside the limiting ring slot 4 are no longer limited. Then, the bellows body 1 is rotated, and the bellows body 1 drives the second fixing ring 8 to rotate. The second fixing ring 8 drives the limiting ring 9 to rotate synchronously. The limiting ring 9 drives the two connecting blocks 10 to rotate synchronously. Thus, the two connecting blocks 10 will move to the positions of the two connecting slots 6. Then, the bellows body 1 is pulled forward, and the two connecting blocks 10 will be successfully removed from the inside of the limiting ring slot 4 through the connecting slot 6. Thus, the disassembly of the bellows body 1 can be completed. During installation, two or more bellows bodies 1 can be connected in the same way. At the same time, the connection between the first rubber gasket 2 and the second rubber gasket 7 improves the sealing performance of the bellows body 1.
[0035] Structural Description: Bellows Body 1: The main part of the bellows, used to withstand pressure and allow for a certain degree of bending and expansion.
[0036] First rubber pad 2: Fixed to the front side of the bellows body 1, used to provide a seal when the bellows is connected to prevent media leakage.
[0037] First fixing ring 3: It is fixedly sleeved on the outer surface of the bellows body 1 and extends forward to cooperate with the second fixing ring 8 of another bellows body and achieves connection through a snap-fit mechanism.
[0038] Limiting ring groove 4: It is formed inside the first fixed ring 3 to accommodate the limiting ring 9 and restrict its forward and backward movement.
[0039] Connecting ring groove 5: It is formed on the front side of the first fixed ring 3 and is connected to the limiting ring groove 4. It is used to guide the limiting ring 9 into the limiting ring groove 4.
[0040] Connecting groove 6: It is formed on the front side of the first fixing ring 3 and is connected to the connecting ring groove 5 and the limiting ring groove 4. It is used to accommodate the connecting block 10 and restrict its left and right movement during connection.
[0041] Second rubber gasket 7: Fixed to the rear side of the bellows body 1, it cooperates with the first rubber gasket 2 to provide an additional seal when the bellows is connected.
[0042] The second fixing ring 8 is fixedly sleeved on the outer surface of the bellows body 1 and extends to the rear side to cooperate with the first fixing ring 3 of another bellows body and achieve connection through a snap-fit mechanism.
[0043] Limiting ring 9: It is fixedly sleeved on the outer surface of the second fixing ring 8 and extends to the rear side to cooperate with the limiting ring groove 4 to limit the forward and backward movement of the bellows body.
[0044] Connecting clip 10: It is fixedly sleeved on the outer surface of the limiting ring 9 and is used to cooperate with the connecting groove 6 to restrict the left and right movement of the bellows body during connection and prevent it from falling out.
[0045] Limiting block 11: Inserted into the inside of the connecting slot 6, it is used to further restrict the movement of the connecting block 10, ensuring a stable connection of the bellows body. When disassembly is required, the limiting block 11 must be removed first.
[0046] Removal slot 12: Located on the left side of the limit block 11, it is used to insert a disassembly tool so that the limit block 11 can be removed when disassembly is required.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pressure-resistant corrugated pipe, comprising two corrugated pipe bodies (1), the two corrugated pipe bodies (1) being arranged front and rear, and the connection structure of the two corrugated pipe bodies (1) being identical; The corrugated pipe body (1) is fixedly connected with the first rubber pad (2) on the front side, and the corrugated pipe body (1) is fixedly connected with the second rubber pad (7) on the rear side, characterized in that: The outer surface of the corrugated pipe body (1) is fixedly sleeved with a first fixing ring (3), the front side of the first fixing ring (3) extends past the front side of the corrugated pipe body (1), and the outer surface of the corrugated pipe body (1) is fixedly sleeved with a second fixing ring (8). The first fixing ring (3) and the second fixing ring (8) are provided with a snap-fit mechanism, and the two bellows bodies (1) can be connected together through the snap-fit mechanism; The locking mechanism includes a limiting ring groove (4), a connecting ring groove (5), two connecting grooves (6), a limiting ring (9), two connecting blocks (10), two limiting blocks (11), and two take-out grooves (12).
2. A pressure-resistant bellows according to claim 1, characterized in that: The limiting ring groove (4) is opened inside the first fixed ring (3), and the connecting ring groove (5) is opened on the front side of the first fixed ring (3); The connecting ring groove (5) is located on the front side of the limiting ring groove (4), and the interior of the connecting ring groove (5) is connected to the interior of the limiting ring groove (4).
3. A pressure-resistant bellows according to claim 1, characterized in that: Both of the connecting grooves (6) are opened on the front side of the first fixing ring (3), and the two connecting grooves (6) are arranged symmetrically on the left and right. Both connecting grooves (6) are connected to the inside of the connecting ring groove (5), and both connecting grooves (6) are also connected to the inside of the limiting ring groove (4).
4. A pressure-resistant bellows according to claim 1, characterized in that: The limiting ring (9) is fixedly sleeved on the outer surface of the second fixed ring (8), and the rear side of the limiting ring (9) extends over the rear side of the bellows body (1). The limiting ring (9) is adapted to the connecting ring groove (5), and the rear side of the limiting ring (9) can extend into the interior of the limiting ring groove (4).
5. A pressure-resistant bellows according to claim 1, characterized in that: The two connecting blocks (10) are respectively fixedly sleeved on the outer surface of the limiting ring (9), and the two connecting blocks (10) are respectively arranged symmetrically up and down; The two connecting blocks (10) are respectively adapted to the two connecting slots (6), and the two connecting slots (6) can move into the interior of the limiting ring slot (4).
6. A pressure-resistant bellows according to claim 1, characterized in that: The two limiting blocks (11) are respectively inserted into the two connecting slots (6), and the two take-out slots (12) are respectively opened on the left side of the two limiting blocks (11).
7. A pressure-resistant bellows according to claim 6, characterized in that: Two limiting blocks (11) extend from the right walls of the two extraction slots (12), and the insertion between the limiting blocks (11) and the connecting slots (6) is relatively tight.