An easily adjustable fire hose

Abstract

This utility model relates to the field of fire hose technology, specifically to a fire hose that is easy to adjust. It includes a hose body with an annular protrusion on it, the interior of which communicates with the interior of the hose body. One end of the protrusion has multiple first openings along its circumferential direction. An opening / closing device is movably connected to the hose body, used to open or close each of the first openings. A speed reducer is also provided on the protrusion, forming a second channel between the opening / closing device and the speed reducer. Through the opening / closing device, when a firefighter is extinguishing a fire, moving the device exposes the first openings, allowing water from the hose body to flow out through these openings and spray towards the firefighter through the second channel. This means that a portion of the water from the hose body is sprayed towards the firefighter, reducing their body temperature, maintaining their working condition, and preventing injury from high temperatures.

Description

Technical Field

[0001] This utility model relates to the field of fire hose technology, specifically to a fire hose that is easy to adjust. Background Technology

[0002] Fire hoses are water-spraying tools used for extinguishing fires. When connected to a fire hose, they spray a dense and powerful stream of water. They have advantages such as long range and large water volume. Based on the different jet patterns and characteristics, they can be divided into: straight stream hoses, spray hoses, and multi-purpose hoses. In recent years, multi-purpose hoses have become popular in the market because they can quickly switch between various water flow patterns such as straight stream, spray, and water curtain, and their combined use can improve adaptability in fire situations.

[0003] However, although multi-functional water guns can form a water curtain, which can absorb smoke and dust particles and vaporize them to cool them down and lower the temperature at the scene, the heavy protective clothing of firefighters (such as fire-resistant heat-insulating suits) will still retain heat in high-temperature environments, causing the body surface temperature to rise slowly, which in turn affects the firefighters' condition and health. Utility Model Content

[0004] The purpose of this invention is to provide a fire hose reel that is easy to adjust, in order to overcome the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An adjustable fire hose includes a hose body with an annular protrusion on the hose body. The interior of the protrusion communicates with the interior of the hose body. One end of the protrusion has multiple first openings along the circumferential direction. An opening / closing device is also movably connected to the hose body for opening or closing each of the first openings. A speed reducer is also provided on the protrusion, and a second channel is formed between the opening / closing device and the speed reducer.

[0006] Furthermore, the opening and closing device includes a control ring slidably connected to the water gun body, and a plurality of sealing blocks are fixedly arranged on the control ring. The plurality of sealing blocks are arranged one-to-one with the first opening, and a locking part is also provided between the control ring and the water gun body.

[0007] Furthermore, the locking part includes a locking ring, which is rotatably connected to the end of the control ring away from the convex ring, and the locking ring is threadedly connected to the water gun body.

[0008] Furthermore, the reducer includes a reduction ring threaded onto a convex ring, and the reduction ring has a circumferential guide surface on the side near the first opening, forming a second channel between the reduction ring and the control ring.

[0009] Furthermore, the guide surface is inclined.

[0010] Furthermore, a sealing groove is provided in the first opening, and a sealing ring is installed in the sealing groove.

[0011] In the above technical solution, the fire hose that is easy to adjust provided by this utility model has the following beneficial effects: With the opening mechanism in place, when firefighters are extinguishing a fire, they can move the opening mechanism to expose the first opening, allowing water from the nozzle to flow out through the first opening and spray towards the firefighter through the second channel. This means that some of the water from the nozzle is sprayed towards the firefighter to lower their body temperature, maintain their working condition, and prevent injury from high temperatures.

[0012] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0013] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model; Figure 2 A schematic diagram of the convex ring structure provided in an embodiment of this utility model; Figure 3 This is a schematic diagram of the opening and closing mechanism provided in an embodiment of the present utility model; Figure 4 This is a partially enlarged structural diagram of embodiment A of the present utility model; Figure 5 This is a cross-sectional structural diagram provided for an embodiment of the present utility model.

[0016] Explanation of reference numerals in the attached figures: The water gun itself; convex ring; 21. First opening; Opening / closing device; 31. Control ring; 32. Sealing block; 33. Locking ring; Reducer; 41. Reduction ring; 42. Guide surface; Second channel; Sealing groove. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0018] Please see Figure 1-5 A fire hose reel that is easy to adjust includes a hose reel body 1, an annular protruding ring 2 on the hose reel body 1, the interior of the protruding ring 2 being connected to the interior of the hose reel body 1, a plurality of first openings 21 being opened at one end of the protruding ring 2 along the circumferential direction, an opening and closing device 3 being movably connected to the hose reel body 1, the opening and closing device 3 being used to open or close each of the first openings 21, a speed reducer 4 being provided on the protruding ring 2, and a second channel 5 being formed between the opening and closing device 3 and the speed reducer 4.

[0019] The water gun body 1 has a water outlet at one end and a clamp for connecting to the water hose at the other end. The first opening 21 faces the direction of the opening, that is, towards the side facing the firefighter, so that the sprayed water can fall on the firefighter.

[0020] Furthermore, the opening / closing device 3 includes a control ring 31 slidably connected to the water gun body 1. Multiple sealing blocks 32 are fixedly mounted on the control ring 31, each corresponding to a first opening 21. A locking part is also provided between the control ring 31 and the water gun body 1. The locking part includes a locking ring 33, which is rotatably connected to the end of the control ring 31 away from the protruding ring 2, and is threadedly connected to the water gun body 1.

[0021] The locking ring 33 rotates, causing the control ring 31 to move. The movement of the control ring 31 causes the sealing block 32 to extend out from the first opening 21, and the water flows out from the water gun body 1 and is sprayed out through the second channel 5.

[0022] Furthermore, the reducer 4 includes a reduction ring 41 threaded onto the convex ring 2. The reduction ring 41 has a circumferential guide surface 42 on the side near the first opening 21. A second channel 5 is formed between the reduction ring 41 and the control ring 31. Rotating the reduction ring 41 causes it to move towards the opening / closing device 3, thereby extending the second channel 5. This increased length of the second channel 5 intensifies the friction between the water flow and the pipe wall, thus reducing the water flow velocity and preventing high-speed water from injuring firefighters.

[0023] Furthermore, the guide surface 42 is inclined. On the one hand, this increases the spray angle of the water flow; on the other hand, the gap in the second channel 5 from the first opening 21 to the end direction is increased, reducing the speed of the water flow and preventing high-speed water flow from causing injury to firefighters.

[0024] Furthermore, a sealing groove 6 is provided inside the first opening 21, and a sealing ring is installed inside the sealing groove 6.

[0025] When the sealing block 32 on the opening / closing device 3 is inserted into the first opening 21, the sealing ring is tightly attached to the sealing block 32 to seal the first opening 21, so as to prevent the water in the water gun body 1 from flowing out of the first opening 21.

[0026] Working principle: The locking ring 33 rotates, causing the control ring 31 to move. The movement of the control ring 31 causes the sealing block 32 to extend out from the first opening 21. Water flows out from the water gun body 1 and sprays towards the firefighter through the second channel 5, thereby reducing the firefighter's body temperature.

[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fire fighting monitor facilitating adjustment, comprising a monitor body (1), characterized in that: The water gun body (1) is provided with an annular convex ring (2), the interior of the convex ring (2) is connected to the interior of the water gun body (1), one end of the convex ring (2) is provided with a plurality of first openings (21) in the circumferential direction, the water gun body (1) is also movably connected with an opening and closing device (3), the opening and closing device (3) is used to open or close each of the first openings (21), the convex ring (2) is also provided with a speed reducer (4), and a second channel (5) is formed between the opening and closing device (3) and the speed reducer (4).

2. A fire fighting monitor according to claim 1, wherein, The opening and closing device (3) includes a control ring (31) slidably connected to the water gun body (1). Multiple sealing blocks (32) are fixedly arranged on the control ring (31). The multiple sealing blocks (32) are arranged one-to-one with the first opening (21). A locking part is also provided between the control ring (31) and the water gun body (1).

3. A fire fighting monitor according to claim 2, wherein, The locking part includes a locking ring (33), which is rotatably connected to the end of the control ring (31) away from the convex ring (2), and the locking ring (33) is threadedly connected to the water gun body (1).

4. The adjustable fire fighting nozzle of claim 1, wherein, The reducer (4) includes a reduction ring (41) threaded onto a convex ring (2). The reduction ring (41) has a circumferential guide surface (42) on the side near the first opening (21). A second channel (5) is formed between the reduction ring (41) and the control ring (31).

5. A fire fighting monitor according to claim 4, wherein, The guide surface (42) is inclined.

6. A fire fighting monitor according to any one of claims 1 to 5, wherein, A sealing groove (6) is provided in the first opening (21), and a sealing ring is installed in the sealing groove (6).

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