Fire-fighting lance with protection function

Abstract

The utility model provides a fire-fighting lance with a protection function, which comprises a nozzle, a connecting pipe and a lance body, the connecting pipe is arranged between the nozzle and the lance body, the nozzle is arranged at the front end of the connecting pipe, the lance body is arranged at the rear end of the connecting pipe, a plurality of water spraying holes inclined towards the rear end are arranged on the connecting pipe at equal intervals, and the water spraying holes are communicated with the nozzle. A guide block is arranged between every two water spraying holes, the guide blocks are fixedly connected with a connecting pipe, the connecting pipe is sleeved with a jet flow ring, and the jet flow ring is in sliding connection with the guide blocks and the outer wall of the connecting pipe. According to the fire-fighting lance with the protection function, the movable jet flow ring is arranged at the position of the connecting pipe, water is sprayed out through the water spraying holes to be evenly sprayed to firemen to play a basic cooling and protecting role in the firemen under the default state that the fire-fighting lance does not move, and when the fire behavior is too large and a water curtain is rapidly evaporated in the air, the fire-fighting lance can be used for protecting the firemen. A firefighter only needs to push the jet flow ring to the bottom through the push handle, at the moment, the jet flow ring abuts against the limiting block, the water spraying holes are connected with the open holes in the inner wall of the jet flow ring, water flows into the jet flow ring through the open holes and then is sprayed out of the direct-flow spraying holes in a concentrated mode, the concentrated water flow is sprayed to the head and the upper body of the firefighter, and the effects of rapidly cooling and waking the head of the firefighter are achieved. And the protection effect on firemen is more comprehensive.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a fire fighting water gun with a protection function. Background Art

[0002] Fire hoses are essential for extinguishing fires. In many cases, due to the fierce fire and high-temperature air waves, firefighters will be burned, seriously threatening their lives. Existing fire hoses protect firefighters by setting up water curtains. However, in the case of a more serious fire, due to the high temperature, the existing fire hoses cannot provide cooling protection. Firefighters approaching the fire source are easily scalded or burned by the high temperature, and the fire extinguishing efficiency is low.

[0003] For example, the publication number: CN220404704U, "a fire hose", includes a nozzle, a connecting pipe and a gun body; the connecting pipe is arranged between the nozzle and the gun body; the nozzle is arranged at the front end of the fire hose; the gun body is arranged at the rear end of the fire hose; the nozzle or the connecting pipe is provided with a plurality of water spray holes inclined toward the rear end. By providing a plurality of water spray holes inclined toward the rear end on the fire hose, when the firefighter is burned by the fire or has a high body temperature, water is sprayed on the firefighter in all directions through the water spray holes, which plays a role of rapid cooling or fire extinguishing, thereby protecting the firefighter. Its essence is still cooling through the water curtain, but the water curtain is sprayed on the whole body of the firefighter. When the water curtain is sprayed, the range will be relatively large because it has to cover the whole body of the firefighter, resulting in a thin water curtain. Once the firefighter rushes into the center of the fire or the fire is too large, the water curtain will be evaporated by the high temperature before being sprayed on the firefighter, resulting in a significant reduction in the amount of water sprayed on the firefighter, resulting in a reduction in the protective effect on the firefighter.

[0004] This case was created to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The purpose of the utility model is to provide a fire-fighting water gun with a protective function to solve the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a fire-fighting water gun with a protective function, comprising a nozzle, a connecting pipe and a gun body, the connecting pipe is arranged between the nozzle and the gun body, the nozzle is arranged at the front end of the connecting pipe, the gun body is arranged at the rear end of the connecting pipe, and the connecting pipe is evenly spaced and provided with a plurality of water spray holes inclined toward the rear end, a guide block is arranged between each of the water spray holes, the guide block is fixedly connected to the connecting pipe, a jet ring is sleeved on the connecting pipe, and the jet ring is slidably connected to the guide block and the outer wall of the connecting pipe.

[0009] Preferably, the jet ring is hollow inside, and a hole is provided on the sliding connection portion between the jet ring and the outer wall of the connecting pipe, the hole corresponds to the number and size of the water spray holes, and the outer wall of the jet ring is provided with a direct current spray hole inclined toward the rear end.

[0010] Preferably, the openings and direct-flow spray holes are both connected to the hollow portion in the jet ring.

[0011] Preferably, push handles are provided on both sides of the jet ring.

[0012] Preferably, the push handle is inclined toward the spray head.

[0013] Preferably, a limit block is provided at one end of the guide block, and the limit block is close to the direction of the nozzle.

[0014] (III) Beneficial effects

[0015] After adopting the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model is a fire-fighting water gun with a protective function, and a movable jet ring is arranged at the connecting pipe. In the default non-moving state, water is sprayed out through the water spray hole and evenly sprinkled to the firefighters, which has a basic cooling and protective effect on the firefighters. When the fire is too big and the water curtain evaporates rapidly in the air, the firefighters only need to push the jet ring to the bottom through the push handle. At this time, the jet ring and the limit block are abutted, and the water spray hole is connected to the opening on the inner wall of the jet ring. Water flows into the jet ring through the opening and is then concentratedly sprayed out from the direct current spray hole. The concentrated water flow is sprayed onto the head and upper body of the firefighter, which has the effect of rapidly cooling the firefighter's head and awakening him, and the protection effect on the firefighter is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 Schematic diagram of the jet ring structure;

[0018] In the figure: 1 nozzle, 2 connecting pipe, 3 gun body, 4 water spray hole, 5 guide block, 6 jet ring, 61 opening, 62 direct current spray hole, 7 push handle, 8 limit block. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below through the drawings and embodiments.

[0020] The utility model embodiment provides a fire-fighting water gun with a protective function, such as Figure 1-2 As shown, it includes a nozzle 1, a connecting pipe 2 and a gun body 3, the connecting pipe 2 is arranged between the nozzle 1 and the gun body 3, the nozzle 1 is arranged at the front end of the connecting pipe 2, the gun body 3 is arranged at the rear end of the connecting pipe 2, and a plurality of water spray holes 4 inclined toward the rear end are evenly spaced on the connecting pipe 2, a guide block 5 is arranged between each water spray hole 4, the guide block 5 is fixedly connected to the connecting pipe 2, a jet ring 6 is sleeved on the connecting pipe 2, the jet ring 6 is slidably connected to the guide block 5 and the outer wall of the connecting pipe 2, and the jet ring 6 can slide along the guide block 5.

[0021] Reference Figure 2 The jet ring 6 is hollow inside, and an opening 61 is provided on the sliding connection portion between the jet ring 6 and the outer wall of the connecting pipe 2. The opening 61 corresponds to the number and size of the water spray holes 4, and a direct current spray hole 62 inclined toward the rear end is provided on the outer wall of the jet ring 6.

[0022] A movable jet ring 6 is provided at the connecting pipe 2. In the default non-moving state, water is sprayed out through the water spray holes 4 and evenly sprinkled on the firefighters, which plays a basic cooling and protective role for the firefighters. When the fire is too big and the water curtain evaporates rapidly in the air, the firefighters only need to push the jet ring 6 to the bottom through the push handle 7. At this time, the jet ring 6 and the limit block 8 are abutted, and the water spray holes 4 are connected to the openings 61 on the inner wall of the jet ring 6. Water flows into the jet ring 6 through the openings 61 and then is concentratedly sprayed out from the direct current spray holes 62. The concentrated water flow is sprayed onto the head and upper body of the firefighters, which plays a role of rapidly cooling the head of the firefighters and awakening them, and the protection effect on the firefighters is more comprehensive.

[0023] Reference Figure 2 The opening 61 and the direct-flow spray hole 62 are both connected to the hollow part in the jet ring 6. Push handles 7 are arranged on both sides of the jet ring 6. The push handles 7 are inclined toward the direction of the nozzle 1. The inclined push handles 7 make it more convenient for firefighters to push the jet ring 6.

[0024] Reference Figure 1 A limit block 8 is provided at one end of the guide block 5, and the limit block 8 is close to the direction of the nozzle 1. When the jet ring 6 abuts against the limit block 8, the water spray hole 4 corresponds to the opening 6 one by one.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire-fighting water gun with a protective function, comprising a nozzle (1), a connecting pipe (2) and a gun body (3), wherein the connecting pipe (2) is arranged between the nozzle (1) and the gun body (3), the nozzle (1) is arranged at the front end of the connecting pipe (2), and the gun body (3) is arranged at the rear end of the connecting pipe (2), characterized in that: The connecting pipe (2) is provided with a plurality of water spray holes (4) inclined toward the rear end at equal intervals, a guide block (5) is provided between each of the water spray holes (4), the guide block (5) is fixedly connected to the connecting pipe (2), a jet ring (6) is sleeved on the connecting pipe (2), and the jet ring (6) is slidably connected to the guide block (5) and the outer wall of the connecting pipe (2).

2. The fire-fighting water gun with a protective function according to claim 1, characterized in that: The jet ring (6) is hollow inside, and a portion where the jet ring (6) is slidably connected to the outer wall of the connecting pipe (2) is provided with openings (61), the number and size of the openings (61) corresponding to the water spray holes (4), and the outer wall of the jet ring (6) is provided with direct current spray holes (62) inclined toward the rear end.

3. The fire-fighting water gun with a protective function according to claim 2, characterized in that: The opening (61) and the direct-flow spray hole (62) are both in communication with the hollow portion in the spray ring (6).

4. The fire-fighting water gun with a protective function according to claim 1, characterized in that: Push handles (7) are provided on both sides of the jet ring (6).

5. The fire-fighting water gun with a protective function according to claim 4, characterized in that: The push handle (7) is inclined toward the spray head (1).

6. The fire-fighting water gun with a protective function according to claim 1, characterized in that: A limit block (8) is provided at one end of the guide block (5), and the limit block (8) is close to the direction of the nozzle (1).

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