Water supply belt for fire fighting

Abstract

The utility model discloses a fire-fighting water supply belt, which belongs to the technical field of fire-fighting equipment and comprises a water supply belt body, metal joints are fixedly mounted at two ends of the water supply belt body, a walking frame is arranged on the outer side of the water supply belt body, bearing cylinders are fixedly mounted in the middles of outer walls of two ends of the walking frame, and a pull rod is rotatably mounted between opposite ends of the two bearing cylinders. The water supply belt body is wound and stored in the middle of the walking frame, when a fire occurs, one metal connector is communicated with a water source, then the pull rod is held by a hand to move, the walking frame is placed on the ground to roll or suspend in the air, and therefore the water supply belt body can be unfolded rapidly, the water passing efficiency of the water supply belt body is improved, and the physical strength of firemen is saved; a plurality of equal-angle buffer rods, brackets and moving wheels are arranged on the outer side of the circumference of the ferrule, so that the water supply belt body is convenient to move after being filled with water, the expansion of the water supply belt body can be accelerated, the friction between the ground and the surface of the water supply belt body is reduced, and the service life of the water supply belt body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a water supply hose for fire-fighting. Background Art

[0002] A fire hose is a flexible hose used to transport high-pressure water or flame-retardant liquids such as foam. Both ends of it are equipped with metal connectors, which can be connected to another hose to extend the distance or to a nozzle to increase the liquid spraying pressure. A fire hose is an indispensable part of fire-fighting equipment.

[0003] After retrieval, the patent publication number CN214146888U discloses a patent named a water supply hose for fire-fighting. The technical problem it aims to solve is that for the convenience of storage and space saving, fire hoses are rolled up with both sides joined together. After a long time, the two sides of the fire hose are prone to being folded with marks and are easily damaged. By arranging a pressure-resistant layer inside the braided layer, it can better withstand the pressure of the high-pressure water flow inside the water supply hose. And by arranging a wear-resistant layer outside the braided layer, it can prevent the water supply hose from being worn too fast when dragged on the road surface, which also affects its use. A reinforcing rib arranged in a spiral shape is arranged inside the braided layer, and the reinforcing rib is wrapped around the braided layer, which can provide a certain bearing pressure for the water supply hose and is convenient for holding when dragging. A metal protective layer is arranged on the outer layer of the braided layer at one end of the water supply hose, which can be better connected to the connector. Hardening strips are arranged on both sides of the braided layer. The existence of the hardening strips can ensure that when the water supply hose is folded together without water, no folding marks will be formed on the left and right sides of the water supply hose, avoiding cracks and extending the service life of the water supply hose. However, there are still the following drawbacks to be solved: When the existing fire hose is in use, firefighters need to manually unroll the fire hose from the rolled state. However, in case of an emergency fire, when there is a lot of mud, obstacles or large frictional resistance on the road, it is not easy for firefighters to roll the fire hose forward to unroll it. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a water supply hose for fire-fighting.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A water supply hose for fire-fighting includes a water supply hose body. Metal connectors are fixedly installed at both ends of the water supply hose body. A walking frame is arranged on the outer side of the water supply hose body. Bearing cylinders are fixedly installed in the middle of the outer walls at both ends of the walking frame. A pull rod is rotatably installed between the opposite ends of the two bearing cylinders. Extension rigid pipes are fixedly installed at the joints between the two metal connectors and the two ends of the water supply hose body. A ferrule is slidably sleeved on the outer circumference of the extension rigid pipe. The inner circumference of the ferrule is circular, and the ferrule is located on the outer circumference of the water supply hose body.

[0007] Preferably, T-shaped plates are fixedly installed at both ends on one side of the circumference of the walking frame, and a first rotating rod and a second rotating rod are respectively rotatably installed at the upper and lower ends of the opposite ends of the two T-shaped plates.

[0008] Preferably, gears are fixedly installed at one end of the circumference of the first rotating rod and the second rotating rod, and the outer circumferences of the two gears are meshed. A protective cover is fixedly installed inside one of the T-shaped plates, and both gears are located inside the protective cover.

[0009] Preferably, the inner diameter of the ferrule is larger than the outer diameter of the water supply belt body, and the inner diameter of the ferrule is smaller than the outer diameter of the metal joint.

[0010] Preferably, a plurality of buffer rods are fixedly installed at equal angles on the outer circumference of the ferrule, and brackets are rotatably installed at the ends of the buffer rods. Moving wheels are rotatably installed inside the brackets, and a plurality of equally spaced rolling balls are rotatably installed on the inner circumference of the ferrule.

[0011] Preferably, magnetic strips are inlaid in the middle of the outer walls on both sides of the ferrule, and two adjacent magnetic strips repel each other.

[0012] Preferably, anti-slip bumps are arranged on the outer circumference of the pull rod, and an anti-friction coating is sprayed on the outer circumference of the walking frame. Both the pull rod and the walking frame are made of heat-insulating materials.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. A water supply belt for fire fighting proposed by the present utility model winds and stores the water supply belt body in the middle of the walking frame. When a fire breaks out, first connect one of the metal joints to the water source, and then hold the pull rod and move it. Place the walking frame on the ground to roll or suspend it. Thus, the water supply belt body can be quickly unfolded, the water passing efficiency of the water supply belt body can be accelerated, and the physical strength of firefighters can be saved. Moreover, both the pull rod and the walking frame are made of heat-insulating materials, avoiding heat transfer when approaching the fire source or high-temperature area, resulting in the inability to stably hold the pull rod or being scalded. And a plurality of ferrules are stacked and located at the end of the circumference of the water supply belt body. After the water supply belt body is unfolded, every two adjacent ferrules move away from each other under the effect of the mutual repulsion of the two adjacent magnetic strips, so that a plurality of ferrules are distributed on the surface of the water supply belt body. And a plurality of buffer rods, brackets and moving wheels are arranged at equal angles on the outer circumference of the ferrule, and a plurality of equally spaced rolling balls are rotatably installed on the inner circumference of the ferrule. This makes it convenient to move the water supply belt body after water passing, which can not only accelerate the unfolding of the water supply belt body, speed up the fire extinguishing speed, but also reduce the friction between the ground and the surface of the water supply belt body, and prolong the service life of the water supply belt body.

[0015] 2. A water supply hose for fire fighting proposed by the present utility model has a first rotating rod and a second rotating rod respectively rotatably installed at the upper and lower ends of the opposite ends of two T-shaped plates. The circumferential outer sides of the gears fixedly installed at one ends of the circumferences of the first rotating rod and the second rotating rod are meshed. After the water supply hose body is used for fire fighting, the traveling frame can be rotated to wind and store it. When the first rotating rod and the second rotating rod rotate towards each other, the residual water and air in the water supply hose body can be squeezed out, and the water supply hose body can be wound orderly. Moreover, both gears are located inside the protective cover, preventing the gears from being corroded or damaged in a water vapor and high-temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a water supply hose for fire fighting proposed by the present utility model;

[0017] Figure 2 is a schematic right-view structural diagram of a water supply hose for fire fighting proposed by the present utility model;

[0018] Figure 3 is a schematic structural diagram of a ferrule of a water supply hose for fire fighting proposed by the present utility model;

[0019] Figure 4 is a schematic structural diagram of the interior of a protective cover of a water supply hose for fire fighting proposed by the present utility model.

[0020] In the figure: 1 water supply hose body, 2 traveling frame, 3 bearing cylinder, 4 pull rod, 5 T-shaped plate, 6 extension hard pipe, 7 metal joint, 8 ferrule, 9 protective cover, 10 first rotating roller, 11 second rotating roller, 12 buffer column, 13 moving wheel, 14 magnetic strip, 15 ball, 16 gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Referring to Figures 1-4 , a water supply hose for fire fighting includes a water supply hose body 1. Metal joints 7 are fixedly installed at both ends of the water supply hose body 1. A traveling frame 2 is arranged on the outer side of the water supply hose body 1. Bearing cylinders 3 are fixedly installed in the middle of the outer walls at both ends of the traveling frame 2. A pull rod 4 is rotatably installed between the opposite ends of the two bearing cylinders 3. Extension hard pipes 6 are fixedly installed at the joints between the two metal joints 7 and the two ends of the water supply hose body 1. A ferrule 8 is slidably sleeved on the circumferential outer side of the extension hard pipe 6. The inner circumference of the ferrule 8 is circular, and the ferrule 8 is located on the circumferential outer side of the water supply hose body 1.

[0022] In the present utility model, T-shaped plates 5 are fixedly installed at both ends on one side of the circumference of the traveling frame 2. A first rotating rod 10 and a second rotating rod 11 are respectively rotatably installed at the upper and lower ends of the opposite ends of the two T-shaped plates 5;

[0023] Gears 16 are fixedly installed at one ends of the circumferences of the first rotating rod 10 and the second rotating rod 11. The circumferential outer sides of the two gears 16 are meshed. A protective cover 9 is fixedly installed inside one of the T-shaped plates 5. Both gears 16 are located inside the protective cover 9;

[0024] The inner diameter of the ferrule 8 is greater than the outer diameter of the water supply belt body 1, and the inner diameter of the ferrule 8 is less than the outer diameter of the metal joint 7, so that a plurality of ferrules 8 can be accommodated and stacked at the end of the water supply belt body 1;

[0025] A plurality of buffer rods 12 at equal angles are fixedly installed on the outer circumference of the ferrule 8, and a bracket is rotatably installed at the end of the buffer rod 12, a moving wheel 13 is rotatably installed inside the bracket, and a plurality of equally spaced balls 15 are rotatably installed on the inner circumference of the ferrule 8;

[0026] Magnetic strips 14 are inlaid in the middle of the outer walls on both sides of the ferrule 8, and two adjacent magnetic strips 14 repel each other;

[0027] Anti-slip bumps are provided on the outer circumference of the pull rod 4 to reduce the phenomenon of hand slipping. The outer circumference of the walking frame 2 is sprayed with an anti-friction coating, so that the firefighter can pull the pull rod 4 to move, and at the same time the walking frame 2 rolls to unfold the water supply belt body 2, which not only accelerates the unfolding of the water supply belt body 2, but also saves the physical strength of the firefighter. Moreover, both the pull rod 4 and the walking frame 2 are made of heat-insulating materials to prevent heat transfer when approaching a fire source or a high-temperature area, resulting in the firefighter being unable to stably hold the pull rod 4 or being scalded.

[0028] Working principle: The water supply belt body 1 is wound and stored in the middle of the walking frame 2. When a fire breaks out, first connect one of the metal joints 7 to the water source, and then hold the pull rod 4 to move, place the walking frame 2 on the ground to roll or suspend it. Thus, the water supply belt body 1 can be quickly deployed and opened, the water passing efficiency of the water supply belt body 1 can be accelerated, and the physical strength of the firefighter can be saved. Moreover, both the pull rod 4 and the walking frame 2 are made of heat-insulating materials to prevent heat transfer when approaching a fire source or a high-temperature area, resulting in the inability to stably hold the pull rod 4 or being scalded. And a plurality of ferrules 8 are accommodated and stacked at the end of the circumference of the water supply belt body 1. After the water supply belt body 1 is unfolded, every two adjacent ferrules 8 are separated from each other under the repulsive effect of the two adjacent magnetic strips 14, so that a plurality of ferrules 8 are distributed on the surface of the water supply belt body 1. And a plurality of buffer rods 12, brackets and moving wheels 13 at equal angles are provided on the outer circumference of the ferrule 8, and a plurality of equally spaced balls 15 are rotatably installed on the inner circumference of the ferrule 8, so that it is convenient to move the water supply belt body 1 after water is passed through, which can not only accelerate the unfolding of the water supply belt body 1, speed up the fire extinguishing speed, but also reduce the friction between the ground and the surface of the water supply belt body 1 and extend the service life of the water supply belt body 1;

[0029] A first rotating rod 10 and a second rotating rod 11 are respectively rotatably installed at the upper and lower ends of the opposite ends of two T-shaped plates 5, and the outer circumference of the gears 16 fixedly installed at one end of the circumferences of the first rotating rod 10 and the second rotating rod 11 are engaged. After the water supply belt body 1 is used for fire fighting, the traveling frame 2 can be rotated to wind and store it. Among them, when the first rotating rod 10 and the second rotating rod 11 rotate towards each other, the residual water and air in the water supply belt body 1 can be squeezed out, and the water supply belt body 1 can be wound orderly. Moreover, both of the two gears 16 are located inside the protective cover 9 to prevent the gears 16 from being corroded or damaged in a water vapor and high-temperature environment.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A fire-fighting water supply hose, comprising a water supply hose body (1), wherein both ends of the water supply hose body (1) are fixedly mounted with metal joints (7), and a running frame (2) is arranged outside the water supply hose body (1), characterized in that: A bearing cylinder (3) is fixedly installed in the middle of the outer wall at both ends of the walking frame (2), and a pull rod (4) is rotatably installed between the opposite ends of the two bearing cylinders (3). An extension hard pipe (6) is fixedly installed at the connection between the two metal joints (7) and the two ends of the water supply belt body (1), and a ring (8) is slidably sleeved on the outer side of the circumference of the extension hard pipe (6). The inner side of the circumference of the ring (8) is annular, and the ring (8) is located on the outer side of the circumference of the water supply belt body (1).

2. A fire-fighting water supply hose according to claim 1, characterized in that: Both ends of one side of the circumference of the walking frame (2) are fixedly mounted with T-shaped plates (5), and the upper and lower ends of the opposite ends of the two T-shaped plates (5) are rotatably mounted with a first rotating rod (10) and a second rotating rod (11).

3. A fire-fighting water supply hose according to claim 2, characterized in that: Gears (16) are fixedly mounted on one end of the circumference of the first rotating roller (10) and the second rotating roller (11), and the two gears (16) are meshed on the outer sides of the circumference; a protective cover (9) is fixedly mounted on the inner side of one of the T-shaped plates (5), and the two gears (16) are located inside the protective cover (9).

4. A fire-fighting water supply hose according to claim 1, characterized in that: The inner diameter of the ferrule (8) is greater than the outer diameter of the water supply belt body (1), and the inner diameter of the ferrule (8) is smaller than the outer diameter of the metal joint (7).

5. A fire-fighting water supply hose according to claim 1, characterized in that: A plurality of buffer rods (12) with equal angles are fixedly mounted on the outer side of the circumference of the ferrule (8), a bracket is rotatably mounted on the end of the buffer rod (12), a moving wheel (13) is rotatably mounted inside the bracket, and a plurality of balls (15) with equal distances are rotatably mounted on the inner side of the circumference of the ferrule (8).

6. A fire-fighting water supply hose according to claim 5, characterized in that: Magnetic strips (14) are embedded in the middle of the outer walls on both sides of the ferrule (8), and two adjacent magnetic strips (14) repel each other.

7. A fire-fighting water supply hose according to claim 1, characterized in that: The outer circumference of the pull rod (4) is provided with anti-skid protrusions, the outer circumference of the walking frame (2) is sprayed with a friction-resistant coating, and the pull rod (4) and the walking frame (2) are both made of heat-insulating materials.

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