A new type of multi-layer pressure-resistant fire hose

Abstract

The utility model belongs to fire -hose technical field especially novel multilayer pressure -resistant fire -hose, including fire -hose connecting frame, the top of fire -hose connecting frame is provided with mounting panel, the top fixed mounting of mounting panel has fire -hose main part, the bottom fixed mounting of mounting panel has sealing rubber ring, the bottom four corners fixed mounting of mounting panel has connecting block, the inboard fixed mounting of fire -hose main part has buffer pressure -resistant ring, and the interval of connecting block and fire -hose connecting frame upper slot is same, can let single connecting block enter other connecting block and can be positioned quickly and slide in, control knob drives screw rod to rotate, and the screw rod can drive the sliding plate and the clamping block of both sides to slide through thread cooperation after rotating, the clamping block can slide into the inboard of connecting block, and it is convenient to install and fix mounting panel and fire -hose main part, and mounting panel can abut to fire -hose connecting frame through sealing rubber ring after installing, and the sealing effect of its connecting place is better.

Description

Technical Field

[0001] This utility model relates to the field of fire hose technology, and in particular to a novel multi-layer pressure-resistant fire hose. Background Technology

[0002] Fire hoses are one of the most commonly used tools in fire fighting. They are mainly used to transport high-pressure water or other extinguishing agents. When in use, one end of the fire hose is usually connected to a fire hydrant or fire pump, and the other end is connected to a fire nozzle or other equipment to form a complete water supply system. When the fire pump is turned on, the high-pressure water can be transported to the fire source through the hose to carry out fire fighting operations.

[0003] The announcement number CN 222163894 U discloses a new type of multi-layer pressure-resistant fire hose, including a first fire hose substrate, an EVA protective layer, a reinforcing braided layer, a second fire hose substrate, a TPU protective layer, a polyurethane layer, and braided threads, etc.

[0004] When in use, the instantaneous internal pressure of the fire hydrant or fire truck interface is too high, which causes the fire hose to rupture. The friction on the inner side of the fire hose is also large, which makes the fire hose easy to break. Therefore, we have proposed a new type of multi-layer pressure-resistant fire hose. Utility Model Content

[0005] The purpose of this invention is to provide a new type of multi-layer pressure-resistant fire hose that solves the existing problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel multi-layer pressure-resistant fire hose includes a fire hose connector frame. A mounting plate is provided on the top of the fire hose connector frame. A fire hose body is fixedly mounted on the top of the mounting plate. A sealing ring is fixedly mounted on the bottom of the mounting plate. Connecting blocks are fixedly mounted at the four corners of the bottom of the mounting plate. A buffer pressure-resistant ring is fixedly mounted on the inner side of the fire hose body. A supporting inner layer is provided on the inner side of the buffer pressure-resistant ring.

[0008] As a further improvement to the above solution, the fire hose body includes a fiber woven outer layer, a rubber reinforcement layer, and a wear-resistant protective layer. The rubber reinforcement layer is fixedly installed on one side of the fiber woven outer layer, and the wear-resistant protective layer is fixedly installed on one side of the rubber reinforcement layer.

[0009] As a further improvement to the above solution, the supporting inner layer includes a nylon fiber inner layer, a rubber waterproof inner layer, and a drag-reducing smooth inner layer. The rubber waterproof inner layer is fixedly installed on one side of the nylon fiber inner layer, and the drag-reducing smooth inner layer is fixedly installed on one side of the rubber waterproof inner layer.

[0010] As a further improvement to the above solution, a screw rod is rotatably installed on the left and right sides of the inner side of the fire pipe connecting bracket, a knob is fixedly installed on the outer side of one end of the screw rod, and a sliding plate is threaded on the front and rear sides of the outer side of the screw rod, and a locking block is fixedly installed on one side of the sliding plate.

[0011] As a further improvement to the above solution, slots are provided at the four corners of the top of the fire pipe connecting bracket, the connecting block fits into the slot, and the spacing between the slot and the connecting block is the same.

[0012] As a further improvement to the above solution, the material of the fiber-woven outer layer is aramid fiber, the material of the rubber reinforcement layer is rubber, and the material of the wear-resistant protective layer is polyester fiber.

[0013] As a further improvement to the above solution, the material of the nylon fiber inner layer is nylon fiber, the material of the rubber waterproof inner layer is rubber, and the material of the drag-reducing and smoothing inner layer is polytetrafluoroethylene.

[0014] As a further improvement to the above solution, the buffer pressure ring is elliptical in shape and made of rubber.

[0015] As a further improvement to the above solution, a slot is provided on one side of the connecting block, and the block fits into the slot.

[0016] As a further improvement to the above solution, a guide limiting groove is provided on the inner side of the fire pipe connecting bracket, and the sliding plate is slidably installed on the inner side of the guide limiting groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] (1) A novel multi-layer pressure-resistant fire hose of this utility model has the same spacing between the connecting block and the slot above the fire pipe connecting frame, which allows the other connecting blocks to be quickly positioned and slid in after a single connecting block enters. The control knob drives the screw rod to rotate. After the screw rod rotates, it can drive the sliding plates and the locking blocks on both sides to slide through the threaded engagement. The locking blocks can slide into the inside of the connecting block, which facilitates the installation and fixing of the mounting plate and the fire hose body. After the mounting plate is installed, it can abut against the fire pipe connecting frame through the sealing rubber ring, which can make the connection point better sealed.

[0019] (2) This utility model discloses a novel multi-layer pressure-resistant fire hose. The outer layer is woven with high-strength aramid fiber or ultra-high molecular weight polyethylene fiber. Aramid fiber has the characteristics of ultra-high strength, high modulus, high temperature resistance, and chemical corrosion resistance; ultra-high molecular weight polyethylene fiber has the advantages of light weight, high strength, and wear resistance. The weaving method adopts a special cross-weaving process, so that the fibers are evenly distributed in all directions to form a strong protective layer, which effectively resists external impact and friction, and prevents the hose from being scratched and worn during use. The drag-reducing smooth inner layer is made of polytetrafluoroethylene (PTFE) or other low friction coefficient materials to form a smooth inner surface. PTFE has the characteristics of extremely low friction coefficient, good chemical stability, and high temperature resistance. The drag-reducing smooth inner layer can reduce the resistance of water flow inside the hose and improve the water transport efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A three-dimensional structural diagram of a novel multi-layer pressure-resistant fire hose proposed in this utility model;

[0022] Figure 2 A three-dimensional structural diagram of the explosive portion of a novel multi-layer pressure-resistant fire hose proposed in this utility model;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure of part A in the diagram;

[0024] Figure 4 This is a partial three-dimensional structural diagram of a novel multi-layer pressure-resistant fire hose proposed in this utility model;

[0025] Figure 5 This is a partial three-dimensional structural diagram of a novel multi-layer pressure-resistant fire hose proposed in this utility model.

[0026] In the diagram: 1. Fire hose connector; 2. Mounting plate; 3. Fire hose body; 4. Sealing ring; 5. Connecting block; 6. Buffer pressure-resistant ring; 7. Support inner layer; 8. Fiber braided outer layer; 9. Rubber reinforcement layer; 10. Wear-resistant protective layer; 11. Nylon fiber inner layer; 12. Rubber waterproof inner layer; 13. Drag-reducing smooth inner layer; 14. Lead screw; 15. Knob; 16. Sliding plate; 17. Locking block. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] refer to Figure 1-5 A novel multi-layer pressure-resistant fire hose includes a fire hose connector 1, a mounting plate 2 on the top of the fire hose connector 1, a fire hose body 3 fixedly mounted on the top of the mounting plate 2, a sealing ring 4 fixedly mounted on the bottom of the mounting plate 2, connecting blocks 5 fixedly mounted at the four corners of the bottom of the mounting plate 2, a buffer pressure-resistant ring 6 fixedly mounted on the inner side of the fire hose body 3, and a supporting inner layer 7 on the inner side of the buffer pressure-resistant ring 6. During firefighting, the mounting plate 2 can be quickly inserted into the inner side of the fire hose connector 1 through the connecting blocks 5. Since the distance between the connecting blocks 5 and the slots above the fire hose connector 1 is the same, other connecting blocks 5 can be quickly positioned and slid in after a single connecting block 5 is inserted. In this embodiment, the fire hose body 3 includes a fiber braided outer layer 8, a rubber reinforcing layer 9, and a wear-resistant protective layer 10. The rubber reinforcing layer 9 is fixedly mounted on one side of the fiber braided outer layer 8, and the wear-resistant protective layer 10 is fixedly mounted on one side of the rubber reinforcing layer 9. The fiber braided outer layer 8 is woven with high-strength aramid fiber or ultra-high molecular weight polyethylene fiber. Aramid fibers possess characteristics such as ultra-high strength, high modulus, high temperature resistance, and chemical corrosion resistance; ultra-high molecular weight polyethylene fibers, on the other hand, have advantages such as light weight, high strength, and wear resistance. The weaving method employs a special cross-weaving process, ensuring the fibers are evenly distributed in all directions to form a robust protective layer that effectively resists external impacts and friction, preventing the hose from being scratched or worn during use. In this embodiment, the supporting inner layer 7 includes a nylon fiber inner layer 11, a rubber waterproof inner layer 12, and a drag-reducing smooth inner layer 13. The rubber waterproof inner layer 12 is fixedly installed on one side of the nylon fiber inner layer 11, and the drag-reducing smooth inner layer 13 is fixedly installed on one side of the rubber waterproof inner layer 12.

[0029] In this embodiment, a screw rod 14 is rotatably installed on the left and right sides of the inner side of the fire hose connecting bracket 1. A knob 15 is fixedly installed on the outer side of one end of the screw rod 14. A sliding plate 16 is threadedly installed on the front and rear sides of the outer side of the screw rod 14. A locking block 17 is fixedly installed on one side of the sliding plate 16. The control knob 15 drives the screw rod 14 to rotate. After the screw rod 14 rotates, it can drive the sliding plates 16 and locking blocks 17 on both sides to slide through the threaded engagement. The locking block 17 can slide into the inner side of the connecting block 5, which facilitates the installation and fixing of the mounting plate 2 and the fire hose body 3. After the mounting plate 2 is installed, it can abut against the fire hose connecting bracket 1 through the sealing rubber ring 4, which can make the connection better sealed.

[0030] In this embodiment, slots are provided at the four corners of the top of the fire hose connecting bracket 1, and the connecting block 5 fits into the slots. The spacing between the slots and the connecting block 5 is the same. In this embodiment, the fiber-woven outer layer 8 is made of aramid fiber, the rubber reinforcing layer 9 is made of rubber, and the wear-resistant protective layer 10 is made of polyester fiber. The rubber reinforcing layer 9 is made of natural or synthetic rubber and modified with a special formula to enhance its flexibility and aging resistance. The rubber layer tightly wraps around the high-strength fiber-woven outer layer, filling the gaps between the fibers and further improving the sealing and waterproof performance of the hose. At the same time, the elasticity of the rubber can buffer the impact of internal water pressure on the hose and enhance the hose's pressure resistance. In this embodiment, the nylon fiber inner layer 11 is made of nylon fiber, the rubber waterproof inner layer 12 is made of rubber, and the drag-reducing smooth inner layer 13 is made of polytetrafluoroethylene. A polyurethane material with excellent wear resistance is selected and a uniform protective layer is formed through an extrusion process. Polyurethane features high hardness, good wear resistance, and strong oil resistance, effectively resisting abrasion from rough surfaces and sharp objects, thus extending the service life of water hoses. This is applied to the wear-resistant protective outer layer.

[0031] In this embodiment, the buffer pressure ring 6 is elliptical in shape and made of rubber. The buffer pressure ring 6 has a certain buffer frame, which allows the inner supporting layer 7 to perform buffering movement and is not prone to damage. In this embodiment, a slot is provided on one side of the connecting block 5, and the card block 17 fits into the slot.

[0032] In this embodiment, a guide limiting groove is provided on the inner side of the fire pipe connecting bracket 1, and the sliding plate 16 is slidably installed on the inner side of the guide limiting groove.

[0033] The implementation principle of a novel multi-layer pressure-resistant fire hose in this application embodiment is as follows: During fire fighting, the mounting plate 2 can be quickly inserted into the inner side of the fire pipe connecting frame 1 through the connecting block 5. Since the distance between the connecting block 5 and the slot above the fire pipe connecting frame 1 is the same, after a single connecting block 5 enters, other connecting blocks 5 can be quickly positioned and slid in. The control knob 15 drives the screw 14 to rotate. After the screw 14 rotates, it can drive the sliding plates 16 and the locking blocks 17 on both sides to slide through the threaded engagement. The locking blocks 17 can slide into the inner side of the connecting block 5, which facilitates the installation and fixing of the mounting plate 2 and the fire hose body 3. After the mounting plate 2 is installed, it can abut against the fire pipe connecting frame 1 through the sealing rubber ring 4, which can make the connection better sealed, so that the water flow is not easy to leak during transmission. When the instantaneous internal pressure of the water in the fire hydrant or fire truck interface is too large, the buffer pressure-resistant ring 6 has a certain buffer frame, which can allow the inner layer 7 to buffer the movement and is not easy to break. The fiber woven outer layer 8 is woven with high-strength aramid fiber or ultra-high molecular weight polyethylene fiber. Aramid fibers possess ultra-high strength, high modulus, high temperature resistance, and chemical corrosion resistance; ultra-high molecular weight polyethylene fibers offer advantages such as light weight, high strength, and wear resistance. The weaving method employs a special cross-weaving process, ensuring uniform fiber distribution in all directions to form a robust protective layer that effectively resists external impacts and friction, preventing the hose from being scratched or worn during use. The drag-reducing smooth inner layer 13 is made of polytetrafluoroethylene (PTFE), forming a smooth inner surface. PTFE has an extremely low coefficient of friction, good chemical stability, and high temperature resistance. The drag-reducing smooth inner layer reduces the resistance of water flow within the hose, improving water transport efficiency.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The present invention provides a detailed description of a novel multi-layer pressure-resistant fire hose. Specific embodiments have been used to illustrate the principles and implementation methods of the present invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A novel multi-layer pressure-resistant fire hose, characterized in that, include: Fire hose connection bracket (1), the top of the fire hose connection bracket (1) is provided with an installation plate (2), the top of the installation plate (2) is fixedly installed with a fire hose body (3), the bottom of the installation plate (2) is fixedly installed with a sealing ring (4), the four corners of the bottom of the installation plate (2) are fixedly installed with connecting blocks (5), the inner side of the fire hose body (3) is fixedly installed with a buffer pressure-resistant ring (6), and the inner side of the buffer pressure-resistant ring (6) is provided with a supporting inner layer (7).

2. The novel multi-layer pressure-resistant fire hose according to claim 1, characterized in that, The fire hose body (3) includes a fiber braided outer layer (8), a rubber reinforcing layer (9) and a wear-resistant protective layer (10). The rubber reinforcing layer (9) is fixedly installed on one side of the fiber braided outer layer (8), and the wear-resistant protective layer (10) is fixedly installed on one side of the rubber reinforcing layer (9).

3. A novel multi-layer pressure-resistant fire hose according to claim 1, characterized in that, The supporting inner layer (7) includes a nylon fiber inner layer (11), a rubber waterproof inner layer (12), and a drag-reducing smooth inner layer (13). The rubber waterproof inner layer (12) is fixedly installed on one side of the nylon fiber inner layer (11), and the drag-reducing smooth inner layer (13) is fixedly installed on one side of the rubber waterproof inner layer (12).

4. A novel multi-layer pressure-resistant fire hose according to claim 1, characterized in that, The fire pipe connector (1) has a screw rod (14) rotatably installed on the left and right sides of its inner side. A knob (15) is fixedly installed on the outer side of one end of the screw rod (14). A sliding plate (16) is threaded on the front and rear sides of the outer side of the screw rod (14). A locking block (17) is fixedly installed on one side of the sliding plate (16).

5. A novel multi-layer pressure-resistant fire hose according to claim 1, characterized in that, The fire pipe connecting bracket (1) has slots at its top four corners, and the connecting block (5) fits into the slots. The slots and the connecting block (5) are spaced at the same distance.

6. A novel multi-layer pressure-resistant fire hose according to claim 2, characterized in that, The fiber-woven outer layer (8) is made of aramid fiber, the rubber reinforcement layer (9) is made of rubber, and the wear-resistant protective layer (10) is made of polyester fiber.

7. A novel multi-layer pressure-resistant fire hose according to claim 3, characterized in that, The nylon fiber inner layer (11) is made of nylon fiber, the rubber waterproof inner layer (12) is made of rubber, and the drag-reducing smooth inner layer (13) is made of polytetrafluoroethylene.

8. A novel multi-layer pressure-resistant fire hose according to claim 1, characterized in that, The buffer pressure ring (6) is elliptical in shape and is made of rubber.

9. A novel multi-layer pressure-resistant fire hose according to claim 4, characterized in that, A slot is provided on one side of the connecting block (5), and the card block (17) fits into the slot.

10. A novel multi-layer pressure-resistant fire hose according to claim 4, characterized in that, The fire pipe connector (1) has a guide limiting groove on its inner side, and the sliding plate (16) is slidably installed on the inner side of the guide limiting groove.

Images