MUHDPE winding reinforced structure wall A-type pipe

By setting collars, semi-circular steel sleeves, and water-blocking rings at both ends of the A-type pipe with a spiral reinforced structural wall, the problems of poor sealing effect and low connection strength are solved, achieving higher sealing performance and stability.

CN223622451UActive Publication Date: 2025-12-02ZHEJIANG DINGDA PLASTIC
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520087849.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-12-02
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

The end-to-end sleeve connection method of the spiral reinforced structural wall type A pipe has poor sealing effect and low connection strength, which can easily lead to loosening and leakage due to sewage impact, vibration, soil deposition and temperature changes.

Method used

A collar is installed on the outer side of both ends of the pipe body. Semi-circular steel sleeve one and semi-circular steel sleeve two are welded together. The collar is snapped into the ring groove. The end ring is inserted into the water-blocking ring through the sealing groove. Limiting rings and sealing rings are added. Support blocks are supported by the base. A corrosion-resistant rubber layer is added to the outside of the collar.

Benefits of technology

It improves the reinforcement and sealing performance of the pipe ends, enhances the resistance to compression at the joints, reduces the risk of water leakage, prevents soil moisture penetration, and stabilizes the pipe joints with the supporting structure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223622451U_ABST
    Figure CN223622451U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of winding reinforced structure wall A-type pipes, and particularly relates to an MUHDPE winding reinforced structure wall A-type pipe which comprises pipe bodies, lantern rings are fixedly arranged on the outer sides of the two ends of the pipe bodies, and a first semicircular steel sleeve shell and a second semicircular steel sleeve shell are arranged at the butt joint positions of the adjacent pipe bodies in a vertically sleeved mode. The first semicircular steel sleeve shell and the second semicircular steel sleeve shell are welded. The first semicircular steel sleeve shell and the second semicircular steel sleeve shell are connected to the outer side of the butt joint end of the pipe body in a sleeving mode, the first semicircular steel sleeve shell and the second semicircular steel sleeve shell are high in strength, excellent in extrusion resistance and capable of comprehensively wrapping and reinforcing the end of the pipe body, the end of the pipe body is not prone to deformation, and the butt joint position of the pipe body is not prone to deformation. The two-layer sealing effect is provided through the water retaining ring and the lantern ring, water is difficult to leak to the outer sides of the first semicircular steel sleeve shell and the second semicircular steel sleeve shell through the water retaining ring and the lantern ring, and therefore the sealing effect of the pipe body butt joint position is greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of spiral wound reinforced structural wall A-type tube, specifically relating to a MUHDPE spiral wound reinforced structural wall A-type tube. Background Technology

[0002] Spiral-wound reinforced structural wall Type A pipe is a type of polyethylene (PE) spiral-wound structural wall pipe. The inner and outer walls of Type A pipe are smooth, and the middle layer is made of multiple layers of high-density polyethylene (HDPE) material spirally or circumferentially wound to form a robust composite structure. This type of pipe is commonly used for gravity flow transportation, such as buried drainage, sewage, water conservancy, and chemical industries, and has high ring stiffness and good pressure resistance. Its wall thickness is usually uniform, relying mainly on the middle spiral layer to provide strength and stability.

[0003] Currently, the ends of the spiral wound reinforced structural wall type A pipe are generally smoothed sleeves, with adjacent pipes sleeved together and then reinforced by structures such as clamps. However, the sealing effect of this sleeve method is relatively poor, and the strength of the connection between the pipe ends is relatively low. With underground use, the impact and vibration caused by sewage, the compression of soil deposits, and the shrinkage of the pipe body caused by temperature changes can easily deform or loosen the connection between the pipe ends, resulting in problems such as water leakage at the pipe end connection. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a MUHDPE spiral reinforced structural wall type A pipe, which solves the problem that the ends of current spiral reinforced structural wall type A pipes are generally smoothed sleeves, with adjacent pipes sleeved together and then reinforced by structures such as clamps. However, this sleeved connection method has a relatively poor sealing effect, and the connection strength between the pipe ends is relatively low. With underground use, the impact and vibration caused by sewage, soil deposition and compression, and pipe shrinkage caused by temperature changes can easily cause the connection between the pipe ends to deform or loosen, resulting in problems such as water leakage at the pipe end connection.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a MUHDPE spiral wound reinforced structural wall type A pipe, comprising a pipe body, with collars fixedly provided on the outer sides of both ends of the pipe body, and semi-circular steel shell one and semi-circular steel shell two being sleeved on the joint of adjacent pipe bodies, the semi-circular steel shell one and semi-circular steel shell two being welded together, and annular grooves being opened on the side of the semi-circular steel shell one and semi-circular steel shell two corresponding to the collars near the pipe body, the collars being snapped into the annular grooves, and end rings being provided at both ends of the pipe body, with sealing grooves being opened on the side of the end rings away from the pipe body, and water-blocking rings being inserted and snapped into the end rings between adjacent pipe bodies through the sealing grooves.

[0006] The beneficial effects of this utility model are as follows: the first and second semi-circular steel sleeves are fitted onto the outside of the pipe body's joint end. The first and second semi-circular steel sleeves have high strength and excellent anti-extrusion performance, and provide a comprehensive reinforcement effect for the pipe body's end, making the pipe body's end less prone to deformation. Furthermore, at the joint of the pipe body, the water-blocking ring and the retaining ring provide a double-layer sealing effect, making it difficult for water to leak out to the outside of the first and second semi-circular steel sleeves through the water-blocking ring and the retaining ring, thereby greatly increasing the sealing effect at the pipe body's joint.

[0007] To improve the sealing performance at the point where the collar contacts the inner wall of the ring groove;

[0008] As a further improvement to the above technical solution: the outer side of the collar is covered with a corrosion-resistant rubber layer.

[0009] The beneficial effect of this improvement is that it increases the sealing performance at the point where the collar and the inner wall of the ring groove are in contact.

[0010] To facilitate quick and easy installation of semi-circular steel sleeve one and semi-circular steel sleeve two;

[0011] As a further improvement to the above technical solution: limit rings are provided on both ends of the outer side of the tube body corresponding to the two ends of the semi-circular steel sleeve one and the semi-circular steel sleeve two.

[0012] The beneficial effects of this improvement are as follows: by setting a limiting ring, the distance between the limiting rings between adjacent pipe bodies can be equal to the lengths of the first and second semicircular steel sleeves. When connecting pipe bodies, the limiting rings facilitate quick and easy installation of the first and second semicircular steel sleeves.

[0013] In order to improve the sealing effect between the two ends of the semi-circular steel sleeve one and the semi-circular steel sleeve two and the limiting ring;

[0014] As a further improvement to the above technical solution: a sealing ring is provided on the side of the limiting ring near the first semicircular steel sleeve, and the sealing ring is tightly attached to both ends of the first and second semicircular steel sleeves.

[0015] The beneficial effects of this improvement are as follows: the sealing ring is set to increase the sealing effect between the two ends of the semi-circular steel sleeve one and the semi-circular steel sleeve two and the limiting ring. This not only increases the sealing performance at the pipe joint, but also prevents moisture in the external soil from penetrating between the semi-circular steel sleeve one and the semi-circular steel sleeve two.

[0016] In order to provide node support at the joints between pipe bodies;

[0017] As a further improvement to the above technical solution: a support block is provided on the lower side of each of the semi-circular steel sleeves, and a base is provided at the lower end of the support block.

[0018] The beneficial effects of this improvement are: the installation of support blocks and bases to provide node support at the joints between pipe bodies.

[0019] In order to adjust the support height of the second semi-circular steel sleeve;

[0020] As a further improvement to the above technical solution: an elongation block is inserted into the upper side of the support block, and bolts are symmetrically threaded on the upper side of the support block, with the bolt threads penetrating the support block and contacting the elongation block.

[0021] The beneficial effect of this improvement is that by tightening the bolts, the telescopic extension block can be extended to adjust the support height of the semi-circular steel sleeve II.

[0022] To facilitate the smooth flow of water;

[0023] As a further improvement to the above technical solution: the inner ring of the end ring is flush with the inner ring of the end of the tube.

[0024] The beneficial effects of this improvement are: it facilitates the smooth flow of water, avoids obstruction of water flow due to the protrusion on the inner side of the pipe body, and avoids increasing the impact force of water flow on the pipe body joint.

[0025] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a side view of the structure of this utility model;

[0028] Figure 3 This is a cross-sectional view of the connection point of this utility model;

[0029] Figure 4 In this utility model Figure 1 Enlarged view of point A;

[0030] In the diagram: 1. Pipe body; 2. Collar; 3. Semi-circular steel sleeve one; 4. Semi-circular steel sleeve two; 5. Ring groove; 6. Limiting ring; 7. Sealing ring; 8. End ring; 9. Sealing groove; 10. Water-blocking ring; 11. Support block; 12. Base; 13. Extension block; 14. Bolt. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0032] like Figure 1 — Figure 4 The diagram shows a type A MUHDPE spiral wound reinforced structural wall pipe, comprising a pipe body 1. Both ends of the pipe body 1 are fixedly provided with collars 2. At the joints of adjacent pipe bodies 1, semi-circular steel sleeves 3 and 4 are fitted together, welded together. On the side of each semi-circular steel sleeve 3 and 4 closest to the pipe body 1, corresponding to the collars 2, annular grooves 5 are formed, and the collars 2 engage with the annular grooves 5. Both ends of the pipe body 1 are provided with end rings 8. On the side of each end ring 8 away from the pipe body 1, a sealing groove 9 is formed. Water-blocking rings 10 are inserted and engaged between adjacent pipe bodies 1 via the sealing grooves 9. The semi-circular steel sleeves 3 and 4... 4. The semi-circular steel sleeves 3 and 4 are fitted onto the outside of the joint end of the pipe body 1. These sleeves have high strength and excellent resistance to compression, providing a comprehensive reinforcement effect to the end of the pipe body 1, preventing deformation. At the joint of the pipe body 1, the water-blocking ring 10 and the collar 2 provide a double-layer seal, making it difficult for water to leak out to the outside of the semi-circular steel sleeves 3 and 4, thus greatly increasing the sealing effect at the joint of the pipe body 1. The outer side of the collar 2 is covered with a corrosion-resistant rubber layer, increasing the sealing performance where the collar 2 contacts the inner wall of the annular groove 5. Limiting devices are provided at both ends of the pipe body 1 corresponding to the semi-circular steel sleeves 3 and 4. Ring 6 is provided, with a limiting ring 6 such that the distance between the limiting rings 6 between adjacent pipe bodies 1 is equal to the length of the semi-circular steel sleeve 1 3 and the semi-circular steel sleeve 2 4. When connecting pipe bodies 1, the limiting rings 6 facilitate quick and easy installation of the semi-circular steel sleeve 1 3 and the semi-circular steel sleeve 2 4. Each limiting ring 6 has a sealing ring 7 on the side near the semi-circular steel sleeve 1 3. The sealing ring 7 is tightly fitted to both ends of the semi-circular steel sleeve 1 3 and the semi-circular steel sleeve 2 4. The sealing ring 7 is used to increase the sealing effect between the ends of the semi-circular steel sleeve 1 3 and the semi-circular steel sleeve 2 4 and the limiting ring 6. This not only increases the sealing performance at the pipe body 1 joint but also prevents moisture from the external soil from seeping between the semi-circular steel sleeve 1 3 and the semi-circular steel sleeve 2 4. Each of the two semi-circular steel sleeves 4 has a support block 11 on its lower side. The lower end of the support block 11 is provided with a base 12. The support block 11 and the base 12 are used to provide node support at the joint between the pipes 1. An extension block 13 is inserted into the upper side of the support block 11. Bolts 14 are symmetrically threaded on the upper side of the support block 11. The threads of the bolts 14 penetrate the support block 11 and contact the extension block 13. Tightening the bolts 14 will extend or retract the extension block 13, which is used to adjust the support height of the two semi-circular steel sleeves 4. The inner ring of the end ring 8 is flush with the inner ring of the end of the pipe 1, which facilitates the smooth flow of water and avoids obstructing the water flow due to the protrusion of the inner side of the pipe 1, thus avoiding increasing the impact force of the water flow on the joint of the pipes 1.

[0033] Working principle and usage process of this utility model:

[0034] In use, an end ring 8 is installed at the end of pipe body 1, which is connected to a water-blocking ring 10 via a sealing groove 9. Then, semi-circular steel sleeves 1 and 2 are both connected to the collar 2 via ring grooves 5 and then welded. Semi-circular steel sleeves 1 and 2 are fitted onto the outside of the joint end of pipe body 1. Semi-circular steel sleeves 1 and 2 have high strength and excellent anti-extrusion performance, and provide a comprehensive reinforcement effect to the end of pipe body 1, making the end of pipe body 1 less prone to deformation. Furthermore, the joint of pipe body 1, through the water-blocking ring 10 and the collar 2, provides a double-layer seal, making it difficult for water to leak through the water-blocking ring 10 and the collar 2. The outer sides of the semi-circular steel sleeve 1 (3) and semi-circular steel sleeve 2 (4) greatly increase the sealing effect at the joint of the pipe body 1. Furthermore, during use, the outer side of the collar 2 is covered with a corrosion-resistant rubber layer, increasing the sealing performance at the point where the collar 2 contacts the inner wall of the annular groove 5. Additionally, during use, limit rings 6 are provided at both ends of the pipe body 1 corresponding to the two ends of the semi-circular steel sleeve 1 (3) and semi-circular steel sleeve 2 (4). The limit rings 6 are designed so that the distance between the limit rings 6 between adjacent pipe bodies 1 is equal to the length of the semi-circular steel sleeve 1 (3) and semi-circular steel sleeve 2 (4). When connecting the pipe body 1, the limit rings 6 facilitate quick connection of the semi-circular steel sleeve 1 (3) and semi-circular steel sleeve 2 (4). The second and fourth semicircular steel sleeves are installed with limiting rings. In addition, during use, sealing rings 7 are provided on the side of the limiting ring 6 near the first semicircular steel sleeve 3. The sealing rings 7 are tightly fitted to both ends of the first and second semicircular steel sleeves 3 and 4. The sealing rings 7 are used to increase the sealing effect between the ends of the first and second semicircular steel sleeves 3 and 4 and the limiting ring 6. This not only increases the sealing performance at the joint of the pipe body 1, but also prevents moisture from the external soil from seeping between the first and second semicircular steel sleeves 3 and 4. Furthermore, during use, support blocks 11 are provided on the lower side of the second semicircular steel sleeve 4, and bases 12 are provided at the lower end of the support blocks 11. Support block 11 and base 12 are provided to support the joint between pipe bodies 1. In addition, an extension block 13 is inserted into the upper side of support block 11, and bolts 14 are symmetrically threaded on the upper side of support block 11. The threads of bolts 14 penetrate support block 11 and contact extension block 13. Tightening bolts 14 will extend and retract extension block 13 to adjust the support height of semi-circular steel sleeve 4. In addition, during use, the inner ring of end ring 8 is flush with the inner ring of end of pipe body 1 to facilitate smooth water flow and avoid obstruction of water flow due to protrusion of the inner side of pipe body 1, thus avoiding increasing the impact force of water flow on the joint of pipe body 1.

[0035] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A type A pipe with a spiral wound reinforced structural wall of MUHDPE, characterized in that: The tube includes a pipe body (1), and a collar (2) is fixedly provided on the outer side of both ends of the pipe body (1). A semi-circular steel shell one (3) and a semi-circular steel shell two (4) are fitted together at the joint of adjacent pipe bodies (1). The semi-circular steel shell one (3) and the semi-circular steel shell two (4) are welded together. The side of the semi-circular steel shell one (3) and the semi-circular steel shell two (4) close to the pipe body (1) is provided with a ring groove (5) corresponding to the collar (2). The collar (2) is engaged with the ring groove (5). Both ends of the pipe body (1) are provided with end rings (8). The side of the end rings (8) away from the pipe body (1) is provided with a sealing groove (9). The end rings (8) between adjacent pipe bodies (1) are connected and engaged with a water-blocking ring (10) through the sealing groove (9).

2. The MUHDPE spiral wound reinforced structural wall type A pipe according to claim 1, characterized in that: The outer side of the collar (2) is covered with a corrosion-resistant rubber layer.

3. The MUHDPE spiral wound reinforced structural wall type A pipe according to claim 1, characterized in that: Limiting rings (6) are provided on both ends of the outer side of the tube body (1) corresponding to the two ends of the semi-circular steel shell one (3) and the semi-circular steel shell two (4).

4. The MUHDPE wound reinforced structural wall type A pipe according to claim 3, characterized in that: Each of the limiting rings (6) is provided with a sealing ring (7) on the side near the first semicircular steel sleeve (3), and the sealing ring (7) is in close contact with both ends of the first semicircular steel sleeve (3) and the second semicircular steel sleeve (4).

5. The MUHDPE spiral wound reinforced structural wall type A pipe according to claim 1, characterized in that: Each of the two semi-circular steel casings (4) is provided with a support block (11) on its lower side, and a base (12) is provided at the lower end of the support block (11).

6. The MUHDPE wound reinforced structural wall type A pipe according to claim 5, characterized in that: An elongation block (13) is inserted into the upper side of the support block (11), and bolts (14) are symmetrically threaded on the upper side of the support block (11). The bolts (14) are threaded through the support block (11) and contact the elongation block (13).

7. The MUHDPE spiral wound reinforced structural wall type A pipe according to claim 1, characterized in that: The inner ring of the end ring (8) is flush with the inner ring of the end of the tube body (1).