Multi-layer co-extrusion type creep-resistant steel wire mesh framework composite pipe
By using a multi-layer co-extrusion structure and reinforcing materials, the problem of insufficient hardness and creep resistance of steel wire mesh reinforced composite pipes is solved, achieving more stable connections and deformation prevention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-20
AI Technical Summary
Existing steel wire mesh reinforced composite pipes are prone to loosening at the joints and have insufficient creep resistance, resulting in unstable connections and deformation.
The steel wire mesh skeleton is enhanced with a multi-layer co-extrusion structure, and its hardness and creep resistance are improved by using modified bonding resin and materials such as calcium carbide particles, talc powder, and asbestos fiber. The skeleton assembly is used to improve its toughness.
It enhances the hardness and creep resistance of the steel wire mesh reinforced composite pipe, improves the stability and toughness of the connection, and prevents deformation.
Smart Images
Figure CN224017898U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to steel wire mesh skeleton composite pipe technical field, concretely to a multilayer co -extrusion type anti -creep steel wire mesh skeleton composite pipe. BACKGROUND
[0002] In daily life, long distance buried water supply and gas transmission work, need to use steel wire mesh skeleton composite pipe, steel wire mesh skeleton plastic composite pipe is a new type of steel skeleton plastic composite pipe that is improved. This pipe material is also called srtp pipe. This new type of pipe is made of high strength plastic steel wire mesh skeleton and thermoplastic polyethylene as raw material, steel wire winding net as the skeleton of polyethylene plastic pipe, with high density polyethylene (HDPE) as the matrix, using high performance HDPE modified adhesive resin to connect the steel wire skeleton and the inner and outer layers of high density polyethylene tightly together, so as to have excellent composite effect
[0003] The steel wire mesh skeleton composite pipe with authorization announcement number CN220320529U is set, by inserting two composite pipe bodies needing to be connected into the left and right ends of the connecting cylinder and abutting together, the sealing property of the connection between the two composite pipe bodies can be enhanced through the first rubber sealing ring, the connecting cylinder and the pipe body at the left end in the connecting cylinder can be fixed together through the joint action of the second bolt, the second through hole and the second nut, the connecting cylinder and the composite pipe body at the right end in the connecting cylinder can be fixed together through the joint action of the first bolt, the first nut and the second through hole, so as to complete the connection between the two composite pipe bodies, the operation process is simple, and the stability of the connection between the two composite pipe bodies is improved. The steel wire mesh skeleton composite pipe is set, the sealing property of the connection between the composite pipe body and the connecting cylinder can be enhanced through the second rubber sealing ring, and the stability of the connection between the connecting cylinder and the composite pipe body can be improved through the joint action of the first rubber sealing ring and the second rubber sealing ring.
[0004] In combination with the existing scheme and the actual production and processing, the existing steel wire mesh skeleton composite pipe has the following defects, such as:
[0005] 1. Although the existing steel wire mesh skeleton composite pipe can complete the connection between the two composite pipe bodies, if the hardness and anti-creep property of the steel wire mesh composite pipe itself are not strengthened, the connection may be loose due to external force after the two composite pipes are connected. The problem of loose connection due to external force can be solved by adding anti-creep materials during production;
[0006] 2. Although the existing steel wire mesh composite pipe improves the stability of the connection between the connecting cylinder and the composite pipe body, it does not reinforce and optimize the internal steel wire mesh, which will cause the composite pipe to deform. By reinforcing the steel wire mesh, this problem can be effectively solved. Therefore, this utility model provides a multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe to solve the above-mentioned problems. Utility Model Content
[0007] The purpose of this utility model is to provide a multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe to solve the problems mentioned in the background art, which make it difficult to improve the hardness and creep resistance of the steel wire mesh skeleton composite pipe, and at the same time, make it difficult to improve the toughness of the multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe, comprising a polyethylene outer tube, a first modified bonding resin disposed inside the polyethylene outer tube, a reinforcing layer installed inside the first modified bonding resin, a second modified bonding resin disposed inside the reinforcing layer, a steel wire mesh skeleton layer disposed inside the second modified bonding resin, a third modified bonding resin installed inside the steel wire mesh skeleton layer, and a polyethylene inner tube disposed inside the third modified bonding resin;
[0009] Calcium carbide particles are placed inside the reinforcing layer, and the outer side of the calcium carbide particles is provided with an anti-creep structure.
[0010] The skeleton assembly is located inside the wire mesh skeleton layer.
[0011] Preferably, the first modified adhesive resin is bonded to both the polyethylene outer tube and the reinforcing layer, and the diameter of the polyethylene outer tube is larger than the diameter of the reinforcing layer, and wear-resistant blocks are uniformly distributed on the outer side of the polyethylene outer tube.
[0012] Preferably, the second modified adhesive resin is bonded to both the reinforcing layer and the wire mesh skeleton layer, and the diameter of the reinforcing layer is larger than the diameter of the wire mesh skeleton layer.
[0013] Preferably, the third modified adhesive resin is bonded to both the wire mesh skeleton layer and the polyethylene inner tube, and the diameter of the wire mesh skeleton layer is larger than the diameter of the polyethylene inner tube.
[0014] Preferably, a first limiting block is installed on the inner side of the polyethylene outer tube at an equal angle, and the first limiting block is nested and connected to the first modified adhesive resin.
[0015] Preferably, the anti-creep structure includes talc powder disposed on the outside of the calcium carbide particles, and asbestos fibers are disposed on the outside of the talc powder, and the calcium carbide particles, talc powder and asbestos fibers are all bonded together by an external adhesive.
[0016] Preferably, the skeleton assembly includes a first wire mesh body, a second wire mesh body, and a third wire mesh body, with a second wire mesh body facing the opposite direction provided on the outer side of the first wire mesh body, and a third wire mesh body in a transverse direction provided at the connection between the first wire mesh body and the second wire mesh body.
[0017] Preferably, the outer side of the polyethylene inner tube is provided with second limiting blocks distributed at equal angles, and the second limiting blocks are nested and connected with the third modified adhesive resin.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe solves the problem that the existing steel wire mesh skeleton composite pipe is not easy to improve the hardness and creep resistance of the steel wire mesh skeleton composite pipe, and at the same time, it is not easy to improve the toughness of the multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe.
[0019] 1. The device is equipped with a first limiting block and a second limiting block. A third modified adhesive resin is nested and connected to the second limiting block. The third modified adhesive resin is bonded to the steel wire mesh skeleton layer and the polyethylene inner tube. The second modified adhesive resin is bonded to the reinforcing layer and the steel wire mesh skeleton layer. The inner wall of the first modified adhesive resin is bonded to the outer wall of the reinforcing layer. The inner wall of the polyethylene outer tube is bonded to the outer wall of the first modified adhesive resin. At the same time, the first limiting block is nested and connected to the first modified adhesive resin, which facilitates the stable assembly of the multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe.
[0020] 2. It contains calcium carbide particles, talc powder, and asbestos fibers. The calcium carbide particles, talc powder, and asbestos fibers are all bonded together by an adhesive. The adhesive forms a tubular steel wire mesh skeleton layer. Asbestos fibers are added inside the steel wire mesh skeleton layer, which enhances the overall creep resistance of the steel wire mesh skeleton layer and facilitates the improvement of the hardness and creep resistance of the steel wire mesh skeleton composite pipe.
[0021] 3. The system includes a skeleton assembly and a wire mesh skeleton layer. The first wire mesh body is placed at an angle, and a second wire mesh body with the opposite direction is set on the outside of the first wire mesh body. A third wire mesh body is set at the connection between the first and second wire mesh bodies. The connection between the first, second, and third wire mesh bodies is welded together. The wire mesh skeleton layer, which is constructed by the first, second, and third wire mesh bodies, is used in the composite pipe to improve the toughness of the multi-layer co-extruded anti-creep wire mesh skeleton composite pipe. Attached Figure Description
[0022] Figure 1 This is a frontal cross-sectional view of the present invention.
[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the overall structure connecting the steel wire mesh skeleton layer and the skeleton assembly of this utility model;
[0025] Figure 4 This is a schematic diagram of the overall structure of the connection between the polyethylene inner tube and the second limiting block of this utility model;
[0026] Figure 5 This is a schematic diagram of the overall structure of the connection between the polyethylene outer tube and the first limiting block of this utility model.
[0027] In the diagram: 1. Polyethylene outer tube; 2. First modified adhesive resin; 3. Reinforcing layer; 4. Second modified adhesive resin; 5. Steel wire mesh skeleton layer; 6. Third modified adhesive resin; 7. Polyethylene inner tube; 8. Wear-resistant block; 9. First limiting block; 10. Calcium carbide particles; 11. Talc powder; 12. Asbestos fiber; 13. Adhesive; 14. Skeleton assembly; 1401. First steel wire mesh body; 1402. Second steel wire mesh body; 1403. Third steel wire mesh body; 15. Second limiting block. Detailed Implementation
[0028] 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.
[0029] Please see Figures 1-5This utility model provides a technical solution: a multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe, comprising a polyethylene outer tube 1, a first modified bonding resin 2, a reinforcing layer 3, a second modified bonding resin 4, a steel wire mesh skeleton layer 5, a third modified bonding resin 6, a polyethylene inner tube 7, a wear-resistant block 8, a first limiting block 9, calcium carbide particles 10, talc powder 11, asbestos fiber 12, an adhesive 13, a skeleton assembly 14, a first steel wire mesh body 1401, a second steel wire mesh body 1402, a third steel wire mesh body 1403, and a second limiting block 15.
[0030] Specific examples Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, firstly, second limiting blocks 15 with equal angle distribution are set on the outside of the polyethylene inner tube 7. The polyethylene inner tube 7 is placed inside the third modified adhesive resin 6, so that the third modified adhesive resin 6 and the second limiting blocks 15 on the outside of the polyethylene inner tube 7 are nested and connected. The third modified adhesive resin 6 is adhesive. A wire mesh skeleton layer 5 is placed on the outside of the third modified adhesive resin 6. The diameter of the wire mesh skeleton layer 5 is larger than the diameter of the polyethylene inner tube 7, so that the third modified adhesive resin 6, the wire mesh skeleton layer 5 and the polyethylene inner tube 7 are all bonded together. Similarly, the outside of the wire mesh skeleton layer 5 is bonded to the inner wall of the second modified adhesive resin 4. The diameter of the reinforcing layer 3 is larger than the diameter of the wire mesh skeleton layer 5. The reinforcing layer 3 is placed on the outside of the second modified adhesive resin 4, so that the second modified adhesive resin 4, the reinforcing layer 3 and the wire mesh skeleton layer 5 are all bonded together.
[0031] Finally, a first modified adhesive resin 2 is placed on the outside of the reinforcing layer 3, so that the inner wall of the first modified adhesive resin 2 is bonded to the outer wall of the reinforcing layer 3. The diameter of the polyethylene outer tube 1 is larger than the diameter of the reinforcing layer 3. The polyethylene outer tube 1 is placed on the outside of the first modified adhesive resin 2, so that the inner wall of the polyethylene outer tube 1 is bonded to the outer wall of the first modified adhesive resin 2. At the same time, a first limiting block 9 with equal angles is installed on the inner side of the polyethylene outer tube 1 and nested with the first modified adhesive resin 2. Wear-resistant blocks 8 are evenly distributed on the outside of the polyethylene outer tube 1, so that the multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe has wear resistance on the outside. The multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe is assembled, which facilitates the stable assembly of the multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe.
[0032] Specific examples Figure 1 and Figure 2As shown, the interior of the steel wire mesh skeleton layer 5 contains calcium carbide particles 10, the outer side of which is covered with talc powder 11, and the outer side of which is covered with asbestos fibers 12. The calcium carbide particles 10, talc powder 11, and asbestos fibers 12 are all bonded together by an adhesive 13. The adhesive 13 forms a tubular steel wire mesh skeleton layer 5 by combining the calcium carbide particles 10, talc powder 11, and asbestos fibers 12. Based on the characteristics of the calcium carbide particles 10 and talc powder 11, the hardness of the steel wire mesh skeleton layer 5 is improved, and it also has the advantage of heat resistance. The addition of asbestos fibers 12 inside the steel wire mesh skeleton layer 5 enhances the overall creep resistance of the steel wire mesh skeleton layer 5, which facilitates the improvement of the hardness and creep resistance of the steel wire mesh skeleton composite pipe.
[0033] Specific examples Figure 1 , Figure 2 and Figure 3 Figure 4 As shown, when assembling the internal skeleton assembly 14 of the wire mesh skeleton layer 5, the first wire mesh body 1401 is placed at an angle, and a second wire mesh body 1402 with the opposite direction is set on the outside of the first wire mesh body 1401. After the first wire mesh body 1401 and the second wire mesh body 1402 are placed alternately on the left and right, a third wire mesh body 1403 is set at the connection between the first wire mesh body 1401 and the second wire mesh body 1402. The connection between the first wire mesh body 1401, the second wire mesh body 1402 and the third wire mesh body 1403 is welded to form a tubular wire mesh skeleton as a whole. After the wire mesh skeleton layer 5, which is constructed by the first wire mesh body 1401, the second wire mesh body 1402 and the third wire mesh body 1403, is used in the composite pipe, it is convenient to improve the toughness of the multi-layer co-extruded anti-creep wire mesh skeleton composite pipe. This is the method of using the multi-layer co-extruded anti-creep wire mesh skeleton composite pipe.
[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A multi-layer co-extruded anti-creep steel wire mesh skeleton composite pipe, comprising a polyethylene outer pipe (1), wherein a first modified adhesive resin (2) is disposed inside the polyethylene outer pipe (1), and a reinforcing layer (3) is installed inside the first modified adhesive resin (2), wherein a second modified adhesive resin (4) is disposed inside the reinforcing layer (3), and a steel wire mesh skeleton layer (5) is disposed inside the second modified adhesive resin (4), wherein a third modified adhesive resin (6) is installed inside the steel wire mesh skeleton layer (5), and a polyethylene inner pipe (7) is disposed inside the third modified adhesive resin (6); Its features are, Also includes: Calcium carbide particles (10) are disposed inside the reinforcing layer (3), and an anti-creep structure is provided on the outside of the calcium carbide particles (10); The skeleton assembly (14) is located inside the wire mesh skeleton layer (5).
2. The multi-layer co-extruded anti-creep steel wire mesh reinforced composite pipe according to claim 1, characterized in that: The first modified adhesive resin (2) is bonded to the polyethylene outer tube (1) and the reinforcing layer (3) respectively, and the diameter of the polyethylene outer tube (1) is larger than the diameter of the reinforcing layer (3), and wear-resistant blocks (8) are uniformly distributed on the outside of the polyethylene outer tube (1).
3. The multi-layer co-extruded anti-creep steel wire mesh reinforced composite pipe according to claim 1, characterized in that: The second modified adhesive resin (4) is bonded to both the reinforcing layer (3) and the wire mesh skeleton layer (5), and the diameter of the reinforcing layer (3) is larger than the diameter of the wire mesh skeleton layer (5).
4. The multi-layer co-extruded anti-creep steel wire mesh reinforced composite pipe according to claim 1, characterized in that: The third modified adhesive resin (6) is bonded to the wire mesh skeleton layer (5) and the polyethylene inner tube (7) by adhesive bonding, and the diameter of the wire mesh skeleton layer (5) is larger than the diameter of the polyethylene inner tube (7).
5. The multi-layer co-extruded anti-creep steel wire mesh reinforced composite pipe according to claim 1, characterized in that: The inner side of the polyethylene outer tube (1) is equipped with a first limiting block (9) set at equal angles, and the first limiting block (9) is nested and connected to the first modified adhesive resin (2).
6. The multi-layer co-extruded anti-creep steel wire mesh reinforced composite pipe according to claim 1, characterized in that: The anti-creep structure includes talc powder (11) disposed on the outside of calcium carbide particles (10), and asbestos fibers (12) are disposed on the outside of talc powder (11). The calcium carbide particles (10), talc powder (11) and asbestos fibers (12) are all bonded together by an external adhesive (13).
7. The multi-layer co-extruded anti-creep steel wire mesh reinforced composite pipe according to claim 1, characterized in that: The skeleton assembly (14) includes a first wire mesh body (1401), a second wire mesh body (1402) and a third wire mesh body (1403), and a second wire mesh body (1402) with the opposite direction is provided on the outside of the first wire mesh body (1401), and a third wire mesh body (1403) with the transverse direction is provided at the connection between the first wire mesh body (1401) and the second wire mesh body (1402).
8. The multi-layer co-extruded anti-creep steel wire mesh reinforced composite pipe according to claim 1, characterized in that: The outer side of the polyethylene inner tube (7) is provided with a second limiting block (15) distributed at equal angles, and the second limiting block (15) is nested and connected to the third modified adhesive resin (6).
Citation Information
Patent Citations
Steel wire mesh framework composite pipe
CN220320529U