A splicable corrugated pipe

CN224756562UActive Publication Date: 2026-09-15DONGTAI XINDARONG BELLOWS CO LTD
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Patent Information

Application Number
CN202522427928.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2026-09-15
Estimated Expiration
2035-11-17

AI Technical Summary

Benefits of technology

[0018] The inner and outer structures of both ends of the tube are the same. The protruding plates and recessed grooves are arranged in a circular array and are staggered. There is no need to deliberately align the direction when splicing. The staggered insertion can be quickly achieved, reducing the time spent on direction adjustment. The mating plate at the end of the protruding plate and the mating groove in the recessed groove are precisely matched. With the guidance of the positioning rod and positioning groove, the installation process is further simplified and the construction cycle is shortened.

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Abstract

The utility model relates to bellows technical field especially relates to a kind of splicing bellows, including pipe body, pipe body is provided with two groups, the structure of the both ends of two pipe bodies is same, convex plate integral setting is in the end of pipe body, and the both ends of pipe body are provided with six convex plates, and the inner wall of convex plate is flush with the inner wall and outer wall of pipe body, recessed groove is circular array and is opened in the end of pipe body, the recessed groove quantity of pipe body end is same with the number of convex plate, and recessed groove and convex plate of pipe body end are staggered distribution, the convex plate and recessed groove of two pipe body ends can be mutually staggered and inserted, inner sealing ring is set between the inner wall of the butt joint end of two pipe bodies, outer sealing ring is sleeved between the outer wall of the butt joint end of two pipe bodies, the utility model is same by pipe body both ends inner and outer structure, convex plate and recessed groove are circular array and staggered distribution, need not deliberately align direction when splicing, can realize staggered and inserted quickly, reduce direction adjustment time-consuming.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, and in particular to a splicable corrugated pipe. Background Technology

[0002] Corrugated pipes, as tubular components with flexibility, corrosion resistance, and impact resistance, are widely used in various fields such as building water supply and drainage, municipal engineering, chemical fluid transportation, power cable protection, and agricultural irrigation. In scenarios such as municipal drainage and industrial transportation, there are high requirements for the splicing efficiency and connection reliability of corrugated pipes. Existing connection methods are difficult to meet the needs of rapid construction and long-term stable operation due to problems such as directional restrictions and complex operation.

[0003] The connection structures at both ends of most corrugated pipes are not standardized, which means that when splicing two pipes, the orientation of the connecting pipes at both ends must be correct before the connection can be made. This process not only consumes a lot of operation time, but also easily leads to low splicing efficiency due to directional adjustment deviations. At the same time, the existing connection structures of corrugated pipes mostly rely on a single fixing method to achieve splicing, such as directly fixing the flanges at both ends with bolts, or simply relying on the insertion fit at the ends of the pipes. They lack dual positioning and sealing design. This single connection method makes it difficult to guarantee the sealing and structural stability of the connection after the pipes are connected. During long-term use, the connection is prone to loosening and sealing failure due to the influence of fluid pressure, vibration or changes in ambient temperature. Therefore, this application proposes a splicable corrugated pipe. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a splicable corrugated pipe to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a splicable corrugated pipe, comprising:

[0006] The tube body is provided in two sets, and the structures at both ends of the two tube bodies are the same.

[0007] The protruding plate is integrally set at the end of the tube body, and six protruding plates are arranged in a circular array at both ends of the tube body. The inner wall of the protruding plate is flush with the inner and outer walls of the tube body.

[0008] The recessed grooves are arranged in a circular array at the end of the tube. The number of recessed grooves at the end of the tube is the same as the number of protruding plates. The recessed grooves and protruding plates at the end of the tube are staggered. The protruding plates and recessed grooves at the ends of two tubes can be interlocked.

[0009] An inner sealing ring is located between the inner walls of the two pipe bodies at their mating ends;

[0010] An outer sealing ring is fitted between the outer walls of the two pipe bodies at their mating ends;

[0011] The clamp assembly is fitted onto the joint ends of the two pipe bodies and the outside of the outer sealing ring.

[0012] Optionally, each protruding plate is provided with a mating plate at its end, and each recessed groove is provided with a mating groove at its inner end, and the size of the mating groove is adapted to the size of the mating plate.

[0013] Optionally, an inner fixing ring is installed at both ends of the inner wall of the tube. The inner sealing ring is located between the two inner fixing rings on the inner wall of the two tube joint ends. The width of the inner sealing ring is the same as the distance between the two inner fixing rings, and the inner wall diameter of the inner sealing ring is the same as the inner wall diameter of the inner fixing ring.

[0014] Optionally, the inner wall of the inner fixing ring away from the inner sealing ring is provided with a trumpet-shaped slope. Multiple positioning grooves are provided in a circular array at the end of each inner fixing ring near the inner sealing ring. Multiple positioning rods are provided in a circular array on both sides of the inner sealing ring. The number of positioning rods on one side of the inner sealing ring is the same as the number of positioning grooves on one side of the inner fixing ring, and the shape of the positioning rods is adapted to the positioning grooves.

[0015] Optionally, external fixing rings are installed at both ends of the outer wall of the tube body, and the external sealing ring is located between the two external fixing rings at the joint end of the two tube bodies. The width of the external sealing ring is the same as the distance between the two external fixing rings, and the outer wall diameter of the external sealing ring is the same as the outer wall diameter of the external fixing ring.

[0016] Optionally, the clamp assembly consists of two symmetrically distributed clamping rings. Both sides of the inner wall of the two clamping rings are provided with an integral enclosure, and one end of the two clamping rings is hinged. A bolt is inserted through one end of the two clamping rings. The inner wall of the clamping rings fits against the outer wall of the outer fixing ring and the outer sealing ring, and the enclosures on both sides of the inner wall of the two clamping rings fit against the side of the two outer fixing rings away from the outer sealing ring.

[0017] The beneficial effects of this utility model are:

[0018] The inner and outer structures of both ends of the tube are the same. The protruding plates and recessed grooves are arranged in a circular array and are staggered. There is no need to deliberately align the direction when splicing. The staggered insertion can be quickly achieved, reducing the time spent on direction adjustment. The mating plate at the end of the protruding plate and the mating groove in the recessed groove are precisely matched. With the guidance of the positioning rod and positioning groove, the installation process is further simplified and the construction cycle is shortened.

[0019] An inner sealing ring is installed on the inner wall to fit the inner fixing rings of the two pipe bodies, and an outer sealing ring is fitted on the outer wall to fit the outer fixing rings of the two pipe bodies, forming a double sealing structure to block the fluid leakage path. The dimensions of the inner sealing ring and the inner fixing ring, and the outer sealing ring and the outer fixing ring are precisely matched, and the sealing surfaces fit tightly after splicing, which can resist the risk of sealing failure caused by fluid pressure, vibration and temperature changes.

[0020] The staggered interlocking of the protruding plate and the recessed groove, the fitting of the mating plate and the mating groove, and the snap-fitting of the positioning rod and the positioning groove form a multi-positioning structure to prevent relative displacement after the pipe body is connected; the clamp assembly is fastened by the clamp ring and bolt, the inner wall is fitted with the outer fixing ring and the outer sealing ring, and the side enclosure limits the outer fixing ring to achieve mechanical reinforcement, improve the impact resistance and deformation resistance of the connection, and ensure long-term stable operation. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the tube body, inner sealing ring, and outer sealing ring of this utility model;

[0024] Figure 3 This is a cross-sectional structural diagram of the connection between the tube body, inner sealing ring, and outer sealing ring of this utility model;

[0025] Figure 4 This is a schematic diagram of the tube body of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the outer sealing ring and clamp assembly of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the inner sealing ring of this utility model;

[0028] In the picture:

[0029] 1. Pipe body;

[0030] 11. Outer retaining ring; 12. Protruding plate; 13. Recessed groove; 14. Inner retaining ring;

[0031] 121. Connecting plate; 131. Connecting groove; 141. Positioning groove;

[0032] 21. Inner sealing ring; 22. Outer sealing ring; 23. Clamping ring; 24. Bolt;

[0033] 211. Positioning rod. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0035] Please see Figures 1-6 This utility model provides a technical solution: a splicable corrugated pipe, including a pipe body 1, with two sets of pipe bodies 1 having identical structures at both ends. A protruding plate 12 is integrally disposed at the end of the pipe body 1, and six protruding plates 12 arranged in a circular array are provided at both ends of the pipe body 1. The inner wall of the protruding plate 12 is flush with the inner and outer walls of the pipe body 1. Recessed grooves 13 are arranged in a circular array at the end of the pipe body 1, with the number of recessed grooves 13 at the end of the pipe body 1 being the same as the number of protruding plates 12. The recessed grooves 13 at the end of the pipe body 1 are staggered with the protruding plates 12. The protruding plates 12 and recessed grooves 13 at the ends of the two pipe bodies 1 can be interlocked, providing an internal seal. Ring 21 is disposed between the inner walls of the two pipe bodies 1 at their joint ends, and outer sealing ring 22 is sleeved between the outer walls of the two pipe bodies 1 at their joint ends. Clamp assembly is sleeved on the outside of the two pipe bodies 1 at their joint ends and the outer sealing ring 22. Through the identical structural design at both ends of the pipe bodies 1, combined with the circular array of staggered protruding plates 12 and recessed grooves 13, rapid staggered insertion without deliberate alignment is achieved, greatly reducing the time spent on directional adjustment during splicing. At the same time, the combination of inner sealing ring 21, outer sealing ring 22 and clamp assembly provides basic sealing and fixing guarantee for the pipe body 1 joint, taking into account both splicing efficiency and connection reliability, and solving the problems of limited splicing direction and complicated operation of existing corrugated pipes.

[0036] like Figure 3 and Figure 4 As shown, each protruding plate 12 has a mating plate 121 at its end, and each recessed groove 13 has a mating groove 131 at its inner end. The size of the mating groove 131 is adapted to the size of the mating plate 121. By setting the mating plate 121 at the end of the protruding plate 12 and opening the adapted mating groove 131 at the inner end of the recessed groove 13, the fit and positioning accuracy of the two tubes 1 when inserted are further improved, making the insertion process smoother and effectively avoiding installation jamming caused by mating deviation. At the same time, it enhances the structural stability of the tube 1 connection, lays a good foundation for subsequent sealing and fixing, and further optimizes the splicing operation experience.

[0037] like Figure 2 , Figure 3 and Figure 4As shown, inner fixing rings 14 are installed at both ends of the inner wall of the pipe body 1. The inner sealing ring 21 is located between the two inner fixing rings 14 on the inner wall of the two pipe bodies 1 mating ends. The width of the inner sealing ring 21 is the same as the distance between the two inner fixing rings 14, and the inner wall diameter of the inner sealing ring 21 is the same as the inner wall diameter of the inner fixing ring 14. By setting the inner fixing rings 14 on the inner wall and making the inner sealing ring 21 precisely fit the space between the two inner fixing rings 14, the inner sealing ring 21 can fit tightly against the inner wall of the pipe body 1, forming a stable inner wall sealing structure. The design that the inner wall diameter of the inner sealing ring 21 is the same as that of the inner fixing ring 14 ensures the smoothness of the inner wall of the pipe body 1, avoids resistance during fluid transportation, and improves the reliability of the inner wall seal, reducing the risk of leakage due to poor sealing.

[0038] like Figure 2 , Figure 3 and Figure 6 As shown, the inner wall of the inner fixing ring 14 away from the inner sealing ring 21 has a trumpet-shaped slope. Multiple positioning grooves 141 are arranged in a circular array at the end of each inner fixing ring 14 near the inner sealing ring 21. Multiple positioning rods 211 are arranged in a circular array on both sides of the inner sealing ring 21. The number of positioning rods 211 on one side of the inner sealing ring 21 is the same as the number of positioning grooves 141 on one side of the inner fixing ring 14, and the shape of the positioning rods 211 matches the positioning grooves 141. The trumpet-shaped slope design of the inner fixing ring 14 provides a guiding effect for fluid transport, reducing the impact of fluid impact on the joint of the pipe body 1. The matching design of the positioning rods 211 and the positioning grooves 141 achieves precise positioning of the inner sealing ring 21 and the inner fixing ring 14, preventing displacement of the inner sealing ring 21 during use and further enhancing the stability of the inner wall seal. The combination of multiple positioning and sealing allows the joint of the pipe body 1 to resist the influence of fluid pressure, vibration, and other factors, improving the long-term stability of the bellows.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, both ends of the outer wall of the pipe body 1 are equipped with outer fixing rings 11. The outer sealing ring 22 is located between the two outer fixing rings 11 at the joint ends of the two pipe bodies 1. The width of the outer sealing ring 22 is the same as the distance between the two outer fixing rings 11, and the outer wall diameter of the outer sealing ring 22 is the same as the outer wall diameter of the outer fixing ring 11. By setting the outer fixing rings 11 on the outer wall and ensuring that the dimensions of the outer sealing ring 22 and the two outer fixing rings 11 are precisely matched, an outer wall sealing structure corresponding to the inner wall is formed. Together with the inner sealing ring 21 on the inner wall, a double sealing system is constructed, which significantly blocks the fluid leakage path. The design that the outer sealing ring 22 and the outer fixing ring 11 have the same outer wall diameter ensures the regularity of the outside of the pipe body 1, provides a flat fitting surface for the subsequent installation of the clamp assembly, and improves the coordination and stability of the overall structure.

[0040] like Figure 1 and Figure 5 As shown, the clamp assembly consists of two symmetrically distributed clamping rings 23. Both sides of the inner wall of each clamping ring 23 are equipped with integrated retaining walls, and one end of each clamping ring 23 is hinged. Bolts 24 are inserted through one end of each clamping ring 23. The inner wall of the clamping ring 23 fits against the outer walls of the outer fixing ring 11 and the outer sealing ring 22. The retaining walls on both sides of the inner wall of each clamping ring 23 fit against the side of the two outer fixing rings 11 furthest from the outer sealing ring 22. The clamp assembly adopts a symmetrical clamping ring 23 structure, combined with a hinged design and bolt 24 fastening method, making operation convenient and the fixing effect reliable. The inner wall of the clamping ring 23 fits tightly against the outer fixing ring 11 and the outer sealing ring 22, and the retaining walls on both sides effectively limit the movement of the outer fixing ring 11. This not only strengthens the sealing effect of the outer sealing ring 22 but also provides strong mechanical reinforcement to the pipe body 1 joint, effectively improving the impact and deformation resistance of the connection and ensuring the long-term stable operation of the corrugated pipe under complex working conditions.

[0041] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A splicable corrugated pipe, characterized in that include: The tube (1) is provided in two sets, and the structures at both ends of the two tubes (1) are the same; The protruding plate (12) is integrally set at the end of the tube body (1), and six protruding plates (12) are arranged in a circular array at both ends of the tube body (1). The inner wall of the protruding plate (12) is flush with the inner and outer walls of the tube body (1). The recessed grooves (13) are arranged in a circular array at the end of the tube body (1). The number of recessed grooves (13) at the end of the tube body (1) is the same as the number of protruding plates (12). The recessed grooves (13) at the end of the tube body (1) and the protruding plates (12) are staggered. The protruding plates (12) and recessed grooves (13) at the ends of the two tube bodies (1) can be interlocked. An inner sealing ring (21) is provided between the inner walls of the two pipe bodies (1) at their mating ends; An outer sealing ring (22) is fitted between the outer walls of the two pipe bodies (1) at their mating ends; The clamp assembly is fitted onto the outside of the joint end of the two pipe bodies (1) and the outer sealing ring (22).

2. A splicable corrugated tube according to claim 1, characterized in that Each of the protruding plates (12) is provided with a mating plate (121) at its end, and each of the recessed grooves (13) is provided with a mating groove (131) at its inner end, and the size of the mating groove (131) is adapted to the size of the mating plate (121).

3. A splicable corrugated tube according to claim 1, wherein, Both ends of the inner wall of the tube body (1) are equipped with inner fixing rings (14). The inner sealing ring (21) is located between the two inner fixing rings (14) on the inner wall of the two tube bodies (1) docking ends. The width of the inner sealing ring (21) is the same as the distance between the two inner fixing rings (14), and the inner wall diameter of the inner sealing ring (21) is the same as the inner wall diameter of the inner fixing ring (14).

4. A splicable corrugated tube according to claim 3, wherein, The inner wall of the inner fixing ring (14) away from the inner sealing ring (21) is provided with a trumpet-shaped slope. Multiple positioning grooves (141) are provided in a circular array at the end of each inner fixing ring (14) near the inner sealing ring (21). Multiple positioning rods (211) are provided in a circular array on both sides of the inner sealing ring (21). The number of positioning rods (211) on one side of the inner sealing ring (21) is the same as the number of positioning grooves (141) on one side of the inner fixing ring (14), and the shape of the positioning rods (211) is adapted to the positioning grooves (141).

5. A splicable corrugated tube according to claim 1, wherein, Both ends of the outer wall of the tube body (1) are equipped with outer fixing rings (11). The outer sealing ring (22) is located between the two outer fixing rings (11) at the joint ends of the two tube bodies (1). The width of the outer sealing ring (22) is the same as the distance between the two outer fixing rings (11), and the outer wall diameter of the outer sealing ring (22) is the same as the outer wall diameter of the outer fixing ring (11).

6. A splicable corrugated tube according to claim 5, wherein, The clamp assembly consists of two symmetrically distributed clamping rings (23). Both sides of the inner wall of the two clamping rings (23) are provided with an integral enclosure. One end of the two clamping rings (23) is hinged. A bolt (24) is inserted through one end of the two clamping rings (23). The inner wall of the clamping ring (23) is in contact with the outer wall of the outer fixing ring (11) and the outer sealing ring (22). The enclosures on both sides of the inner wall of the two clamping rings (23) are respectively in contact with the side of the two outer fixing rings (11) away from the outer sealing ring (22).