Bending-resistant ultra-light wear-resistant fire hose for emergency rescue

Abstract

The utility model discloses an anti-bending ultra-light wear-resistant fire hose for emergency rescue, which belongs to the technical field of fire hoses and comprises a water conveying pipeline for conveying a water source in emergency and a water pipe connector mounted at a port of the water conveying pipeline. The water conveying pipeline comprises an anti-bending thermoplastic polyurethane lining, a protective layer is arranged outside the thermoplastic polyurethane lining in a composite mode, a polyethylene fiber woven outer layer is arranged outside the protective layer in a composite mode, and a wear-resisting layer set for enhancing the application wear resistance of the pipeline is arranged outside the polyethylene fiber woven outer layer in a composite mode. A protective sleeve group for further enhancing the application wear resistance of the pipeline is mounted outside the water conveying pipeline in a sleeving manner; the fire hose is prepared by compounding multiple layers of materials, the whole fire hose is light and soft, the bending resistance is high, and under the protection of the external wear-resistant layer group, the wear resistance of the fire hose in application can be effectively enhanced.

Description

Technical Field

[0001] This utility model relates to the field of fire hose technology, specifically to an ultra-lightweight and wear-resistant fire hose for emergency rescue that is resistant to bending. Background Technology

[0002] Ultra-lightweight and wear-resistant fire hoses for emergency rescue are an important component of modern firefighting equipment. Their lightweight, wear-resistant, pressure-resistant, and bend-resistant properties make them widely applicable in various firefighting scenarios. The overall lightness of the fire hose reduces the workload and increases the speed of fire extinguishing. Due to the influence of the actual application environment, the wear resistance of the fire hose is of great significance for emergency firefighting use.

[0003] For example, patent CN211410816U discloses a modified plastic fire hose, including a fire hose body, a metal mesh on the outer surface of the fire hose body, a water nozzle on the left side of the fire hose body, and a hose connector on the right side of the fire hose body. The fire hose body includes a UV-resistant layer, and an oxidation-resistant layer is provided on the side of the UV-resistant layer away from the metal mesh. The oxidation-resistant layer gives the modified plastic fire hose its anti-oxidation function, the high-temperature resistant layer gives it its high-temperature resistance function, and the cold-resistant and freeze-resistant layer gives it its... Modified plastic fire hoses possess cold-resistant and freeze-resistant properties. By incorporating a flame-retardant layer, they also acquire flame-retardant properties. In some fire locations, the ground surface is uneven, and fire hoses are often spread out on the ground. After being filled with water, the hoses should not be dragged arbitrarily on the ground to avoid wear and tear. However, during emergency firefighting operations, firefighters need to concentrate on quickly extinguishing the fire and cannot simultaneously attend to the dragging of the fire hoses. Some fire hoses with poor abrasion resistance suffer severe surface wear from repeated dragging, easily cracking and leaking, which is detrimental to high-pressure water jet firefighting.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing fire hoses. Utility Model Content

[0005] The purpose of this utility model is to provide an ultra-lightweight and wear-resistant fire hose for emergency rescue, in order to solve the problem mentioned in the background art that during emergency fire fighting operations, firefighters need to concentrate on quickly extinguishing the fire source and it is difficult to take care of the dragging of the fire hose. Some fire hoses with poor wear resistance suffer severe surface wear under repeated dragging, which can easily lead to cracking and leakage, and is not conducive to high-pressure water jet fire fighting.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ultra-lightweight and wear-resistant fire hose for emergency rescue, comprising a water supply pipe for emergency water delivery and a water pipe interface installed at the port of the water supply pipe. The water supply pipe includes a bend-resistant thermoplastic polyurethane inner lining, a protective layer is compositely disposed on the outside of the thermoplastic polyurethane inner lining, a polyethylene fiber woven outer layer is compositely disposed on the outside of the protective layer, and a wear-resistant layer assembly to enhance the wear resistance of the pipe is compositely disposed on the outside of the polyethylene fiber woven outer layer; a protective sleeve assembly to further enhance the wear resistance of the pipe is fitted on the outside of the water supply pipe.

[0007] Preferably, the wear-resistant layer assembly includes a glass fiber layer compositely bonded to the outside of the polyethylene fiber woven outer layer, a rubber wear-resistant layer compositely bonded to the outside of the glass fiber layer, and a polyurethane coating compositely bonded to the outside of the rubber wear-resistant layer.

[0008] Preferably, the protective sleeve includes two sets of fixing buckles symmetrically fixed to the outside of the water pipeline along the axial direction. The fixing buckles are provided with side grooves at the top and bottom. A cylindrical rod is fixed to the fixing buckle along the opening direction of the side groove. A wear-resistant protective strip is sleeved on the outside of the cylindrical rod.

[0009] Preferably, the wear-resistant protective belt has a circular groove, and the wear-resistant protective belt is rotatably sleeved on the outside of the cylindrical rod through the circular groove.

[0010] Preferably, the two sets of wear-resistant protective strips are symmetrically fitted and protected in the vertical direction of the water pipeline.

[0011] Preferably, the outer surface of the wear-resistant protective belt is fixed with multiple protrusions at equal intervals, and the protrusions are obliquely connected to the outside of the wear-resistant protective belt.

[0012] Preferably, multiple sets of protective sleeves are equally spaced on the outside of the water pipeline, and flexible connecting ropes are connected between adjacent protective sleeves; multiple flexible connecting ropes are fixedly connected at equal intervals on the side of the wear-resistant protective belt, and multiple flexible connecting ropes surround and protect the outside of the water pipeline.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the emergency rescue anti-bending ultra-light wear-resistant fire hose is made by composite preparation of a thermoplastic polyurethane inner lining, a protective layer, a polyethylene fiber woven outer layer and a wear-resistant layer, which makes the water supply pipe have good anti-bending and wear-resistant properties, and enhances the durability of the hose in fire emergency rescue.

[0014] Furthermore, the wear-resistant layer group includes a fiberglass layer, a rubber wear-resistant layer, and a polyurethane coating. The fiberglass layer has good wear resistance and high temperature resistance, the rubber wear-resistant layer has good elasticity and wear resistance. Using rubber materials on the outer layer of the fire hose can improve its wear resistance and pressure resistance. The polyurethane coating has good wear resistance and waterproof performance. The multi-structure wear-resistant layer group can effectively improve the wear resistance of the fire hose in actual use.

[0015] Furthermore, the water pipeline is fitted with a protective sleeve to further enhance its wear resistance. After water is filled into the pipeline, the fire hose unfolds, causing the external wear-resistant protective sleeve to expand. The wear-resistant protective sleeve has a certain thickness and provides protection and support to the outside of the water pipeline. Flexible connecting ropes connect adjacent wear-resistant protective sleeves. This structure reduces the contact between the outer surface of the water pipeline and the ground, reducing friction on the surface of the water pipeline. This prevents the water pipeline from being repeatedly dragged on the ground during emergency rescue, which could lead to cracking, damage, and leakage. It also ensures that the water source transported in the pipeline is continuously delivered and sprayed under high pressure. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the water pipeline of this utility model.

[0017] Figure 2 This is a schematic diagram of the thermoplastic polyurethane liner structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the polyurethane coating structure of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the protective sleeve assembly of this utility model.

[0020] Figure 5 This is a schematic diagram of the wear-resistant protective belt structure of this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the fixing buckle of this utility model.

[0022] Figure 7 This is a schematic diagram of the convex strip structure of this utility model.

[0023] In the diagram: 1. Water pipe; 11. Thermoplastic polyurethane lining; 12. Protective layer; 13. Polyethylene fiber braided outer layer; 14. Wear-resistant layer assembly; 141. Fiberglass layer; 142. Rubber wear-resistant layer; 143. Polyurethane coating; 2. Water pipe interface; 3. Protective sleeve assembly; 31. Fixing buckle; 32. Side groove; 33. Cylindrical rod; 34. Wear-resistant protective belt; 35. Circular groove; 36. Raised strip; 4. Flexible connecting rope. Detailed Implementation

[0024] 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.

[0025] Example 1: Please refer to Figures 1-3 The present invention provides the following technical solution: an ultra-lightweight and wear-resistant fire hose for emergency rescue, comprising a water supply pipe 1 for emergency water supply and a water pipe interface 2 installed at the port of the water supply pipe 1. The water supply pipe 1 includes a bend-resistant thermoplastic polyurethane inner lining 11, a protective layer 12 is compositely provided on the outside of the thermoplastic polyurethane inner lining 11, a polyethylene fiber braided outer layer 13 is compositely provided on the outside of the protective layer 12, and a wear-resistant layer group 14 for enhancing the wear resistance of the pipe is compositely provided on the outside of the polyethylene fiber braided outer layer 13; a protective sleeve group 3 for further enhancing the wear resistance of the pipe is sleeved on the outside of the water supply pipe 1.

[0026] The wear-resistant layer group 14 includes a glass fiber layer 141 compositely connected to the outside of the polyethylene fiber braided outer layer 13, a rubber wear-resistant layer 142 compositely connected to the outside of the glass fiber layer 141, and a polyurethane coating 143 compositely connected to the outside of the rubber wear-resistant layer 142.

[0027] The wall of the water pipeline 1 is composed of a thermoplastic polyurethane inner lining 11, a protective layer 12, a polyethylene fiber braided outer layer 13, and a wear-resistant layer group 14. The composite water pipeline 1 is lightweight and flexible, with strong bending resistance. Under the protection of the external wear-resistant layer group 14, it can effectively enhance the wear resistance of the water pipeline 1 in application.

[0028] The wear-resistant layer group 14 is composed of a glass fiber layer 141, a rubber wear-resistant layer 142, and a polyurethane coating 143. The glass fiber layer 141 has good wear resistance and high temperature resistance. The rubber wear-resistant layer 142 has good elasticity and wear resistance. It is placed on the outside of the fire hose to improve its wear resistance and compressive strength. The polyurethane coating 143 has good wear resistance and waterproof performance. The three-layer composite wear-resistant layer group 14 can effectively improve the overall wear resistance of the fire hose and prevent the fire hose from cracking or breaking easily under repeated dragging.

[0029] Example 2: Please refer to Figures 4-7Based on Embodiment 1, a protective sleeve 3 is also disclosed, the specific structure of which is as follows: The protective sleeve 3 includes two sets of fixing buckles 31 symmetrically fixed to the outside of the water supply pipe 1 along the axial direction. Side grooves 32 are provided on the upper and lower sides of the fixing buckles 31. A cylindrical rod 33 is fixed on the upper part of the fixing buckle 31 along the opening direction of the side groove 32. A wear-resistant protective strip 34 is sleeved on the outside of the cylindrical rod 33.

[0030] The wear-resistant protective belt 34 has a circular groove 35, and the wear-resistant protective belt 34 is rotatably sleeved on the outside of the cylindrical rod 33 through the circular groove 35.

[0031] Two sets of wear-resistant protective strips 34 are symmetrically fitted over the water pipeline 1 in the vertical direction. Multiple protrusions 36 are fixed at equal intervals on the outer surface of the wear-resistant protective strips 34, and the protrusions 36 are obliquely connected to the outside of the wear-resistant protective strips 34.

[0032] Multiple sets of protective sleeves 3 are equally spaced on the outside of the water supply pipe 1, and flexible connecting ropes 4 are connected between adjacent protective sleeves 3; multiple flexible connecting ropes 4 are equally spaced on the side of the wear-resistant protective belt 34, and multiple flexible connecting ropes 4 are wrapped around the outside of the water supply pipe 1 for protection.

[0033] When not using fire hoses, the fire hoses are wound into a roll. At this time, the water supply pipe 1 is flattened, and the wear-resistant protective strip 34 is flattened and attached to the outside of the water supply pipe 1. The adjacent wear-resistant protective strips 34 are connected by a flexible connecting rope 4, which does not affect the winding and coiling of the water supply pipe 1.

[0034] When using fire hoses in emergency rescue, water is connected to the water supply pipe 1 through the water pipe interface 2. When water is filled into the water supply pipe 1, it expands the pipe. At this time, the wear-resistant protective strip 34 on the outside of the water supply pipe 1 expands outward. The wear-resistant protective strip 34 has a certain thickness and supports and protects the outside of the water supply pipe 1. Multiple flexible connecting ropes 4 are connected between the horizontally adjacent wear-resistant protective strips 34. When using the fire hose, the wear-resistant protective strip 34 and the flexible connecting ropes 4 support and adhere to the ground, reducing the contact area between the water supply pipe 1 and the ground. When firefighters drag the water supply pipe 1 during firefighting operations, the probability of the surface of the water supply pipe 1 contacting the ground is reduced, thereby reducing the wear rate of the surface of the water supply pipe 1 during dragging and extending the service life of the fire hose.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] 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. An anti-kink, ultra-lightweight, wear-resistant fire hose for emergency rescue, comprising a water delivery pipeline (1) for emergency water delivery and a water pipe connector (2) installed at the port of the water delivery pipeline (1), characterized in that: The water pipeline (1) includes a thermoplastic polyurethane liner (11) for bending resistance, a protective layer (12) is provided on the outside of the thermoplastic polyurethane liner (11), a polyethylene fiber braided outer layer (13) is provided on the outside of the protective layer (12), and a wear-resistant layer group (14) to enhance the wear resistance of the pipeline is provided on the outside of the polyethylene fiber braided outer layer (13). The water pipeline (1) is fitted with a protective sleeve (3) to further enhance the wear resistance of the pipeline application.

2. The anti-kinking, ultra-lightweight, wear-resistant fire hose for emergency rescue according to claim 1, characterized in that: The wear-resistant layer group (14) includes a glass fiber layer (141) compositely connected to the outside of the polyethylene fiber braided outer layer (13), a rubber wear-resistant layer (142) compositely connected to the outside of the glass fiber layer (141), and a polyurethane coating (143) compositely connected to the outside of the rubber wear-resistant layer (142).

3. The anti-kinking, ultra-lightweight, wear-resistant fire hose for emergency rescue according to claim 1, characterized in that: The protective sleeve (3) includes two sets of fixing buckles (31) symmetrically fixed to the outside of the water supply pipe (1) along the axial direction. The fixing buckles (31) are provided with side grooves (32) on the upper and lower sides. A cylindrical rod (33) is fixed on the fixing buckle (31) along the opening direction of the side groove (32). A wear-resistant protective strip (34) is sleeved on the outside of the cylindrical rod (33).

4. The anti-kinking, ultra-lightweight, wear-resistant fire hose for emergency rescue according to claim 3, characterized in that: The wear-resistant protective strip (34) has a circular groove (35) and the wear-resistant protective strip (34) is rotatably sleeved on the outside of the cylindrical rod (33) through the circular groove (35).

5. The anti-kinking, ultra-lightweight, wear-resistant fire hose for emergency rescue according to claim 4, characterized in that: The two sets of wear-resistant protective strips (34) are symmetrically fitted and protected in the vertical direction of the water pipeline (1).

6. The anti-kinking, ultra-lightweight, wear-resistant fire hose for emergency rescue according to claim 5, characterized in that: The wear-resistant protective belt (34) has multiple protrusions (36) fixed at equal intervals on its outer surface, and the protrusions (36) are obliquely connected to the outside of the wear-resistant protective belt (34).

7. The anti-kinking, ultra-lightweight, wear-resistant fire hose for emergency rescue according to claim 6, characterized in that: Multiple sets of protective sleeves (3) are equally spaced outside the water pipeline (1), and flexible connecting ropes (4) are connected between adjacent protective sleeves (3). Multiple flexible connecting ropes (4) are fixedly connected at equal intervals to the side of the wear-resistant protective belt (34), and multiple flexible connecting ropes (4) surround and protect the outside of the water pipeline (1).

Images