High modulus hmpp wound structural wall pipe
By designing a partial docking assembly for high-modulus HMPP wound wall tubes, the problems of inconvenient transportation and overall replacement of HMPP wound wall tubes in the existing technology have been solved, realizing the flexibility of partial disassembly and docking, and reducing the cost of use and transportation difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 合肥元丰管业有限公司
- Filing Date
- 2025-05-11
- Publication Date
- 2026-06-26
AI Technical Summary
Existing HMPP spiral wound pipes are too long, making them inconvenient to transport, and require complete replacement when damaged, increasing usage costs and time.
A high-modulus HMPP spiral wound structure wall tube was designed, which adopts two sets of inner tubes, and is equipped with an outer metal reinforcement layer, an inner lining layer, a load-bearing layer and an outer wear-resistant layer. Partial disassembly and docking are achieved through docking components, including docking sleeves, sealing gaskets, positioning rods and bolt structures.
It allows for the removal of only specific pipe sections when partial damage occurs, reducing replacement costs. Furthermore, the single-unit pipe section facilitates transportation and docking, improving the flexibility of transportation and use.
Smart Images

Figure CN224414656U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wound wall tube technology, and in particular to a high modulus HMPP wound structure wall tube. Background Technology
[0002] Polypropylene spiral wound structured wall pipe is made from high-quality high-modulus polypropylene (HMPP) as raw material and processed by a secondary winding process. The product is beautiful and environmentally friendly, with high ring stiffness and ring flexibility. It provides electrofusion welding or rubber ring connection to effectively prevent leakage problems. It can be used as drainage and sewage pipes, integrated pump station shells, large storage tanks, etc.
[0003] Some existing HMPP spiral wound pipes are quite long, which not only makes them inconvenient to transport, but also requires the entire pipe to be replaced when it is damaged, rather than replacing only a part of it. This not only consumes a lot of time for replacement, but also increases the cost of use. Utility Model Content
[0004] Given that some existing HMPP spiral wound pipes are too long, making them inconvenient to transport, and that when the pipes are damaged, the entire pipe needs to be replaced instead of just a part, which not only consumes a lot of time but also increases the cost of use, this utility model was proposed.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-modulus HMPP wound structure wall tube, comprising two sets of inner tubes, a metal reinforcing layer sleeved on the outer wall of the inner tubes, an inner lining layer sleeved on the outer wall of the metal reinforcing layer, multiple sets of reinforcing rods inserted in the space between the inner lining layer and the metal reinforcing layer, a bearing layer sleeved on the outer wall of the inner lining layer, an outer wear-resistant layer sleeved on the outer wall of the bearing layer, and multiple sets of spiral wound coils uniformly sleeved on the outer wall of the outer wear-resistant layer. A docking assembly is sleeved at one end of the two sets of inner tubes that are connected to each other. The docking assembly includes a first docking sleeve sleeved on the outer wall of one set of inner tubes and a second docking sleeve sleeved on the outer wall of the other set of inner tubes. A sealing gasket is provided between the first docking sleeve and the second docking sleeve. A positioning rod is provided at the end of the first docking sleeve near the second docking sleeve. A positioning groove that cooperates with the positioning rod is opened at the end of the second docking sleeve near the first docking sleeve. An installation sleeve is sleeved at the middle of the outer wall of the first and second docking sleeves. Four sets of bolts are threaded into the outer wall of the installation sleeve.
[0006] As a preferred embodiment of the high modulus HMPP wound structure wall tube of this utility model, multiple sets of reinforcing ribs are fixedly inserted between the spiral wound rings.
[0007] As a preferred embodiment of the high-modulus HMPP wound structure wall tube of this utility model, wherein: the sealing gasket and the first mating sleeve are fixedly connected, and the positioning rod and the first mating sleeve are fixedly connected.
[0008] As a preferred embodiment of the high modulus HMPP wound structure wall tube of this utility model, the positioning rod is movably inserted into the inner wall of the positioning groove, and the mounting sleeve is movably sleeved on the outer wall of the first and second mating sleeves. The outer walls of the first and second mating sleeves are provided with threaded holes that cooperate with bolts.
[0009] As a preferred embodiment of the high-modulus HMPP wound structure wall tube of this utility model, the inner tube body is composed of high-modulus polypropylene material, and the metal reinforcing layer is made of aluminum.
[0010] As a preferred embodiment of the high-modulus HMPP wound structure wall tube of this utility model, the bearing layer is a metal mesh woven from iron wire, and the inner lining layer is made of polyvinyl chloride.
[0011] As a preferred embodiment of the high modulus HMPP wound structure wall tube of this utility model, the outer wear-resistant layer is made of glass fiber reinforced plastic.
[0012] Compared with the prior art, the present invention has at least the following beneficial effects:
[0013] In this invention, when the pipe body is damaged and needs to be replaced, the bolt is unscrewed from the threaded holes of the first and second mating sleeves, the mounting sleeve is removed from the outer wall of the first and second mating sleeves, and then the first and second mating sleeves are separated at both ends. The positioning rod is pulled out from the positioning groove, thus completing the disassembly of the two sets of mating pipe bodies. Therefore, it is not necessary to disassemble the entire pipe body, but only the damaged specific pipe body needs to be disassembled, reducing the cost of use. Moreover, compared with a longer pipe body, a single shorter pipe body is easier to transport. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the high-modulus HMPP wound structure wall tube of this utility model;
[0015] Figure 2 This is an exploded three-dimensional cross-sectional view of the docking assembly of the high-modulus HMPP wound structure wall tube of this utility model.
[0016] Figure 3 This is a three-dimensional cross-sectional view of the high-modulus HMPP wound structure wall tube of this utility model.
[0017] Explanation of reference numerals in the attached drawings: 1. Outer wear-resistant layer; 2. Spiral winding ring; 3. Connecting assembly; 31. First connecting sleeve; 32. Positioning rod; 33. Sealing gasket; 34. Second connecting sleeve; 35. Positioning groove; 36. Mounting sleeve; 37. Bolt; 4. Reinforcing rib; 5. Bearing layer; 6. Inner lining layer; 7. Metal reinforcement layer; 8. Reinforcing rod; 9. Inner tube body. Detailed Implementation
[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0019] Example 1
[0020] Reference Figures 1-3 This is the first embodiment of the present invention, providing a high-modulus HMPP wound structure wall tube. This high-modulus HMPP wound structure wall tube includes two sets of inner tube bodies 9. A metal reinforcing layer 7 is fitted onto the outer wall of the inner tube body 9. An inner lining layer 6 is fitted onto the outer wall of the metal reinforcing layer 7. Multiple sets of reinforcing rods 8 are inserted into the space between the inner lining layer 6 and the metal reinforcing layer 7. A bearing layer 5 is fitted onto the outer wall of the inner lining layer 6. An outer wear-resistant layer 1 is fitted onto the outer wall of the bearing layer 5. Multiple sets of spiral wound coils 2 are evenly fitted onto the outer wall of the outer wear-resistant layer 1. A docking assembly 3 is fitted onto one end of the two sets of inner tube bodies 9 that are connected to each other. The connecting component 3 includes a first mating sleeve 31 fitted onto the outer wall of one set of inner tube bodies 9, and a second mating sleeve 34 fitted onto the outer wall of the other set of inner tube bodies 9. A sealing gasket 33 is provided between the first mating sleeve 31 and the second mating sleeve 34. A positioning rod 32 is provided at one end of the first mating sleeve 31 near the second mating sleeve 34. A positioning groove 35 that mates with the positioning rod 32 is provided at one end of the second mating sleeve 34 near the first mating sleeve 31. An installation sleeve 36 is fitted onto the middle of the outer wall of the first mating sleeve 31 and the second mating sleeve 34. Four sets of bolts 37 are threaded into the outer wall of the installation sleeve 36.
[0021] Multiple sets of reinforcing ribs 4 are fixedly inserted between the spiral winding rings 2, which can increase the structural strength of the spiral winding rings 2.
[0022] The sealing gasket 33 is fixedly connected to the first mating sleeve 31, and the positioning rod 32 is fixedly connected to the first mating sleeve 31.
[0023] The positioning rod 32 is movably inserted into the inner wall of the positioning groove 35, and the mounting sleeve 36 is movably fitted onto the outer wall of the first mating sleeve 31 and the second mating sleeve 34. The outer walls of the first mating sleeve 31 and the second mating sleeve 34 are provided with threaded holes that cooperate with the bolt 37.
[0024] The inner tube 9 is made of high-modulus polypropylene, and the metal reinforcement layer 7 is made of aluminum.
[0025] The supporting layer 5 is a metal mesh woven from iron wire, and the inner lining layer 6 is made of polyvinyl chloride.
[0026] The outer wear-resistant layer 1 is made of glass fiber reinforced plastic.
[0027] When the pipe body is damaged and needs to be replaced, unscrew the bolt 37 from the threaded holes of the first mating sleeve 31 and the second mating sleeve 34, remove the mounting sleeve 36 from the outer wall of the first mating sleeve 31 and the second mating sleeve 34, then separate the first mating sleeve 31 and the second mating sleeve 34 at both ends, and pull out the positioning rod 32 from the positioning groove 35. This completes the disassembly of the two sets of mating pipe bodies, thus eliminating the need to disassemble the entire pipe body, only disassembling the damaged specific pipe body, reducing usage costs. Moreover, compared to a longer pipe body, a single shorter pipe body is easier to transport. When the pipe bodies need to be mated, insert the positioning rod 32 set on the outer wall of the first mating sleeve 31 along the positioning groove 35. At this time, the sealing gasket 33 and the outer wall of the second mating sleeve 34 are in contact, increasing the sealing between the pipe bodies. Put the mounting sleeve 36 on the outer wall of the first mating sleeve 31 and the second mating sleeve 34, and screw the bolt 37 into the threaded holes of the first mating sleeve 31 and the second mating sleeve 34 to complete the mating between the two sets of pipe bodies.
[0028] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A high-modulus HMPP wound structure wall tube, comprising two sets of inner tube bodies (9), characterized in that: The outer wall of the inner tube (9) is fitted with a metal reinforcing layer (7), the outer wall of the metal reinforcing layer (7) is fitted with an inner lining layer (6), multiple sets of reinforcing rods (8) are inserted in the space between the inner lining layer (6) and the metal reinforcing layer (7), the outer wall of the inner lining layer (6) is fitted with a bearing layer (5), the outer wall of the bearing layer (5) is fitted with an outer wear-resistant layer (1), the outer wall of the outer wear-resistant layer (1) is uniformly fitted with multiple sets of spiral winding rings (2), and a docking assembly (3) is fitted at one end of the two sets of inner tubes (9) that are connected to each other. The docking assembly (3) includes a first docking sleeve fitted on the outer wall of one set of inner tubes (9). 31), another set of inner tubes (9) are fitted with a second mating sleeve (34) on the outer wall. A sealing gasket (33) is provided between the first mating sleeve (31) and the second mating sleeve (34). A positioning rod (32) is provided at one end of the first mating sleeve (31) near the second mating sleeve (34). A positioning groove (35) that cooperates with the positioning rod (32) is opened at one end of the second mating sleeve (34) near the first mating sleeve (31). An installation sleeve (36) is fitted at the middle of the outer wall of the first mating sleeve (31) and the outer wall of the installation sleeve (36) is threaded with four sets of bolts (37) that are symmetrical to each other.
2. The high-modulus HMPP wound structure wall tube according to claim 1, characterized in that: Multiple sets of reinforcing ribs (4) are fixedly inserted between the spiral winding rings (2).
3. The high-modulus HMPP wound structure wall tube according to claim 1, characterized in that: The sealing gasket (33) and the first mating sleeve (31) are fixedly connected, and the positioning rod (32) and the first mating sleeve (31) are fixedly connected.
4. The high-modulus HMPP wound structure wall tube according to claim 1, characterized in that: The positioning rod (32) is movably inserted into the inner wall of the positioning groove (35), and the mounting sleeve (36) is movably sleeved on the outer wall of the first docking sleeve (31) and the second docking sleeve (34). The outer walls of the first docking sleeve (31) and the second docking sleeve (34) are provided with threaded holes that cooperate with the bolt (37).
5. The high-modulus HMPP wound structure wall tube according to claim 1, characterized in that: The inner tube (9) is made of high-modulus polypropylene, and the metal reinforcement layer (7) is made of aluminum.
6. The high-modulus HMPP wound structure wall tube according to claim 1, characterized in that: The supporting layer (5) is a metal mesh woven from iron wire, and the inner lining layer (6) is made of polyvinyl chloride.
7. The high-modulus HMPP wound structure wall tube according to claim 1, characterized in that: The outer wear-resistant layer (1) is made of glass fiber reinforced plastic.