Polyurethane fire-fighting steel wire pipe
By incorporating a wear-resistant layer, a flame-retardant layer, a fiber braided layer, and a wire mesh layer into the polyurethane steel wire tube, and filling it with a flame retardant, the problems of puncture resistance and flame retardancy of polyurethane steel wire tubes are solved, thereby improving its wear resistance and flame retardancy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING NINGHUAI PIPE IND
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-05
AI Technical Summary
Existing polyurethane steel wire hoses are not convenient for puncture protection and flame retardant protection during use, leading to easy damage and leakage.
The polyurethane steel wire tube is constructed by incorporating a wear-resistant layer, a flame-retardant layer, a fiber braided layer, a steel wire mesh layer, and flame-retardant pellets, combined with a flame retardant agent, to form a multi-layered protective structure that enhances wear resistance and flame retardancy.
This technology improves the wear resistance and flame retardancy of polyurethane steel wire tubing, prevents damage and puncture leaks, and enhances overall protective performance.
Smart Images

Figure CN224201281U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyurethane steel wire pipe technology, specifically a polyurethane fire-fighting steel wire pipe. Background Technology
[0002] Polyurethane steel wire hose, also known as polyurethane steel wire reinforced hose, is a flexible pipe made of polyurethane material with an embedded steel wire reinforcement layer. This pipe has significant characteristics: excellent wear resistance, which can resist abrasion from particles, sand and gravel; strong pressure resistance, as the steel wire reinforcement layer enables it to withstand high pressure; good flexibility, which makes it easy to install in complex environments; and corrosion resistance, which can transport media such as acids and alkalis.
[0003] Existing polyurethane steel wire pipes, such as the double-layer polyurethane steel wire pipe disclosed in publication number CN219345755U, have the advantages of greatly extending the service life of the steel wire pipe body and enhancing the overall strength and stability. However, these polyurethane steel wire pipes are inconvenient to carry out puncture protection and flame retardant protection during use. Therefore, we propose a polyurethane fire-fighting steel wire pipe. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows:
[0006] A polyurethane fire-fighting steel wire pipe includes: a pipe body; the outermost layer of the pipe body is provided with a wear-resistant layer, the inner layer of the wear-resistant layer is fixedly provided with a flame-retardant layer, the inner layer of the flame-retardant layer is fixedly provided with a fiber braided layer, the inner layer of the fiber braided layer is fixedly provided with a steel wire mesh layer, flame-retardant pellets are fixedly provided in the flame-retardant layer, and each flame-retardant pellet is filled with a flame retardant agent.
[0007] Preferably, the inner layer of the wire mesh layer is further fixedly provided with a polyurethane outer layer.
[0008] Preferably, the outer and inner layers of the polyurethane outer layer are further fixedly provided with spiral steel wires.
[0009] Preferably, the inner layer of the spiral steel wire is further fixedly provided with a polyurethane inner layer.
[0010] Preferably, the flame retardant is in multiple groups.
[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0012] 1. In this utility model, the wear-resistant layer, fiber braiding layer and wire mesh layer set on the outer layer of the spiral steel wire in the pipe body can form a three-layer protection at the outer end, so that the outer layer of the pipe body has good wear resistance to prevent it from being damaged. At the same time, the fiber braiding layer and wire mesh layer set in sequence also have the effect of preventing puncture, thereby blocking the puncture of foreign objects and avoiding the problem of leakage caused by completely puncturing the entire pipe.
[0013] 2. In this utility model, the flame-retardant layer provided on the outer layer of the pipe body, as well as the flame-retardant pellets and flame-retardant filler provided in the flame-retardant layer, can also make the pipe have good flame retardancy. Attached Figure Description
[0014] Figure 1 This is an overall structural diagram of the present invention;
[0015] Figure 2 This is a side sectional view of the present invention;
[0016] Figure 3 This utility model Figure 2 A magnified view of A in the middle.
[0017] Figure label:
[0018] 100. Pipe body; 101. Wear-resistant layer; 102. Flame-retardant layer; 103. Fiber braided layer; 104. Steel wire mesh layer; 105. Flame-retardant shot; 106. Flame retardant; 107. Polyurethane outer layer; 108. Spiral steel wire; 109. Polyurethane inner layer. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0020] The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a polyurethane fire-fighting steel wire pipe.
[0021] Example 1:
[0022] Combination Figure 1-3As shown, the present invention provides a polyurethane fire-fighting steel wire pipe, comprising: a pipe body 100; the outermost layer of the pipe body 100 is provided with a wear-resistant layer 101, the inner layer of the wear-resistant layer 101 is fixedly provided with a flame-retardant layer 102, the inner layer of the flame-retardant layer 102 is fixedly provided with a fiber braided layer 103, the inner layer of the fiber braided layer 103 is fixedly provided with a steel wire mesh layer 104, flame-retardant pellets 105 are fixedly provided in the flame-retardant layer 102, and the flame-retardant pellets 105 are also filled with flame retardant 106, the inner layer of the steel wire mesh layer 104 is also fixedly provided with a polyurethane outer layer 107, the inner layer of the polyurethane outer layer 107 is also fixedly provided with a spiral steel wire 108, the inner layer of the spiral steel wire 108 is also fixedly provided with a polyurethane inner layer 109, and the flame retardant 106 is in multiple groups.
[0023] Specifically, the polyurethane steel wire hose, also known as polyurethane steel wire reinforced hose, is a flexible pipe made of polyurethane material with an embedded steel wire reinforcement layer. The wear-resistant layer 101, fiber braided layer 103, and steel wire mesh layer 104 on the outer layer of the spiral steel wire 108 in the pipe body 100 form a three-layer protection at the outer end, giving the outer layer of the pipe body 100 good wear resistance to prevent damage. Simultaneously, the sequentially connected fiber braided layer 103 and steel wire mesh layer 104 also have a puncture-resistant effect, thus blocking punctures from foreign objects and preventing complete puncture of the entire pipe and leakage. The flame-retardant layer 102 on the outer layer of the pipe body 100, along with the flame-retardant pellets 105 and flame-retardant agent 106 filled within the flame-retardant layer 102, also gives the pipe good flame retardancy. The polyurethane outer layer 107 and polyurethane inner layer 109 on the inner and outer layers of the spiral steel wire 108, through their excellent material properties, also ensure the wear resistance and corrosion resistance of the inner layer of the pipe body 100.
[0024] Working principle and usage process of this utility model:
[0025] During use, the outermost wear-resistant layer 101 of the pipe body 100 ensures the wear resistance of the outer end of the pipe body 100 and reduces the problem of damage after wear. The flame-retardant layer 102 inside the wear-resistant layer 101, as well as the multiple sets of flame-retardant pellets 105 uniformly arranged in the flame-retardant layer 102 and the flame retardant agent 106 filled in the flame-retardant pellets 105, can also ensure the flame-retardant performance of the outside of the pipe body 100. At the same time, the fiber braided layer 103 and the wire mesh layer 104 arranged in sequence inside the flame-retardant layer 102 can also block foreign objects from piercing the pipe body 100, so as to avoid the problem of leakage caused by complete piercing of the pipe body 100.
[0026] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A polyurethane fire-fighting steel wire pipe, characterized in that, include: Pipe body (100); the outermost layer of the pipe body (100) is provided with a wear-resistant layer (101), the inner layer of the wear-resistant layer (101) is fixedly provided with a flame-retardant layer (102), the inner layer of the flame-retardant layer (102) is fixedly provided with a fiber braided layer (103), the inner layer of the fiber braided layer (103) is fixedly provided with a wire mesh layer (104), flame-retardant pellets (105) are fixedly provided in the flame-retardant layer (102), and the flame-retardant pellets (105) are also filled with flame retardant (106).
2. The polyurethane fire-fighting steel wire pipe according to claim 1, characterized in that, The inner layer of the wire mesh layer (104) is also fixedly provided with a polyurethane outer layer (107).
3. The polyurethane fire-fighting steel wire pipe according to claim 2, characterized in that, The inner layer of the polyurethane outer layer (107) is also fixedly provided with a spiral steel wire (108).
4. A polyurethane fire-fighting steel wire pipe according to claim 3, characterized in that, The inner layer of the spiral steel wire (108) is also fixedly provided with a polyurethane inner layer (109).
5. A polyurethane fire-fighting steel wire pipe according to claim 1, characterized in that, The flame retardant (106) is in multiple groups.
Citation Information
Patent Citations
Double-layer polyurethane steel wire pipe
CN219345755U