Telescopic fire-fighting lance

Abstract

The utility model discloses a telescopic fire-fighting lance which comprises a plurality of pipe bodies with different pipe diameters, and the pipe bodies with large pipe diameters are sleeved outside the pipe bodies with small pipe diameters; a plurality of water outlet holes are formed in the pipe walls of the pipe bodies with different pipe diameters; the rear end of the pipe body with the largest pipe diameter is provided with a bayonet end used for being connected with an external water pipe. A sealing plate is arranged at the front end of the pipe body with the smallest pipe diameter; in every two adjacent pipe bodies, a limiting component used for preventing the pipe body located on the inner layer from being separated from the pipe body located on the outer layer is arranged between the front end of the pipe body located on the outer layer and the rear end of the pipe body located on the inner layer. The utility model has the advantages of simple operation and convenient carrying.

Description

Technical Field

[0001] The utility model relates to a telescopic fire-fighting water gun. Background Art

[0002] As an important fire-fighting equipment, the main function of the fire hose is to apply the fire water connected to the fire hydrant to the fire area to achieve the purpose of fire extinguishing.

[0003] The length of the fire hose nozzle currently on the market is not adjustable. It is manually held and aimed at the burning object to spray and extinguish the fire. It is not safe for people to be close to the fire source, and it cannot solve the problem of continuous fire extinguishing in a small space, such as cooling and extinguishing a car chassis fire.

[0004] The existing fire-fighting water gun has the following defects:

[0005] 1. One-way water outlet, unable to cover a large area.

[0006] 2. Firefighters need to hold fire guns to extinguish fires at the source;

[0007] 3. Firefighters cannot be released from their duties and cannot carry out other firefighting work;

[0008] 4. When the fire is at a low location, it is impossible to use an effective standing posture to extinguish the fire, and it is impossible to evacuate quickly when the fire source expands. Utility Model Content

[0009] The technical problem to be solved by the utility model is to overcome the above-mentioned defects in the prior art and provide a telescopic fire-fighting water gun.

[0010] The utility model solves the above technical problems through the following technical solutions:

[0011] A telescopic fire-fighting water gun comprises several tube bodies of different diameters, wherein the tube body with a larger diameter is sleeved on the outside of the tube body with a smaller diameter; a plurality of water outlet holes are provided on the tube walls of the tube bodies of different diameters; the rear end of the tube body with the largest diameter is provided with a bayonet end for connecting to an external water pipe; the front end of the tube body with the smallest diameter is provided with a sealing plate; in two adjacent tube bodies, a limiting component for preventing the tube body in the inner layer from separating from the tube body in the outer layer is provided between the front end of the tube body in the outer layer and the rear end of the tube body in the inner layer.

[0012] Furthermore, the limiting component includes a first limiting portion and a second limiting portion, the first limiting portion is arranged at the front end of the tube body located at the outer layer, the second limiting portion is arranged at the rear end of the tube body located at the inner layer, and the first limiting portion is located in front of the second limiting portion.

[0013] Furthermore, the first limiting portion and the second limiting portion are both annular, and the inner diameter of the first limiting portion is smaller than the outer diameter of the second limiting portion.

[0014] Furthermore, the inner diameter of the first limiting portion is greater than the outer diameter of the tube body located in the inner layer.

[0015] Furthermore, the outer diameter of the second limiting portion is smaller than the inner diameter of the tube body located on the outer layer.

[0016] Furthermore, the first limiting portion is provided on the inner wall of the tube body located at the outer layer; the second limiting portion is provided on the outer wall of the tube body located at the inner layer.

[0017] Furthermore, a sealing ring is provided on the limiting component, and the sealing ring is provided on the first limiting portion or on the second limiting portion.

[0018] Furthermore, the water outlet is a circular through hole.

[0019] Furthermore, the sealing plate is fixed to the pipe body with the smallest diameter.

[0020] Furthermore, the sealing plate is integrally formed with the tube body with the smallest diameter.

[0021] The beneficial effects of the present invention are as follows: the telescopic fire-fighting water gun of the present invention can be placed outside the fire source when in use. When the fire hydrant is opened, the telescopic fire-fighting water gun will extend step by step and automatically extend into the fire source, which can quickly and conveniently extinguish the fire and at the same time increase the range of fire extinguishing. The tube body can be provided with a large number of water outlets, which can achieve 360-degree water outlet and achieve fire extinguishing in a wider range. The telescopic fire-fighting water gun of the present invention can extinguish the fire at a certain distance from the fire source, without the need to get close to the fire source, and effectively protect the safety of personnel. The telescopic fire-fighting water gun of the present invention can extend into a narrow space and can continuously extinguish the fire in a narrow space, especially for fire sources in narrow spaces such as the bottom of a car chassis, which has a good fire-fighting effect. The telescopic fire-fighting water gun of the present invention can be placed near the fire source to extinguish the fire, without the need to hold it in hand, and can more effectively protect the safety of personnel. The telescopic fire-fighting water gun of the present invention has the advantages of being simple to operate and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a preferred embodiment of the present utility model.

[0023] Figure 2 This is a schematic diagram of the state of a preferred embodiment of the utility model after connecting to the fire water pipe.

[0024] Figure 3 for Figure 2 Enlarged schematic diagram of part A.

[0025] Figure 4 This is a schematic diagram of a preferred embodiment of the utility model when the fire hydrant is not opened when the fire is extinguished in a car.

[0026] Figure 5 This is a schematic diagram of a preferred embodiment of the present invention when a fire hydrant is opened for extinguishing a car fire. DETAILED DESCRIPTION

[0027] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0028] like Figure 1 、 Figure 2 and Figure 3 As shown, a telescopic fire hose comprises a plurality of pipe bodies with different diameters, wherein the pipe body with a larger diameter is sleeved on the outside of the pipe body with a smaller diameter; a plurality of water outlet holes are opened on the pipe walls of the pipe bodies with different diameters.

[0029] In this embodiment, there are three tubes of different diameters, including tube 10 with the largest diameter, tube 30 with the smallest diameter, and tube 20 located between tubes 10 and 30. The diameter of tube 20 is smaller than that of tube 10, and the diameter of tube 20 is larger than that of tube 30. Tube 20 is sleeved within tube 30, and tube 10 is sleeved within tube 20.

[0030] The pipe bodies 10, 20 and 30 are each provided with a plurality of water outlet holes 50. The water outlet holes are circular through holes and are distributed along the circumference and longitudinal direction of the pipe bodies.

[0031] The rear end of the pipe body 10 with the largest diameter is provided with a bayonet end 11 for connecting to an external water pipe.

[0032] The front end of the tube body 30 with the smallest diameter is provided with a sealing plate 31. The sealing plate 31 is fixed to the tube body 30 with the smallest diameter. Alternatively, the sealing plate 31 is integrally formed with the tube body 30 with the smallest diameter.

[0033] In two adjacent tubes, a limiting component for preventing the inner tube from separating from the outer tube is provided between the front end of the outer tube and the rear end of the inner tube.

[0034] In this embodiment, a limiting component 40 is provided between the tube body 10 and the tube body 20 , and between the tube body 20 and the tube body 30 .

[0035] Since the limiting components have the same structure, for the sake of convenience, this embodiment will be described by taking the limiting component between the tube body 10 and the tube body 20 as an example, and the limiting component between the tube body 20 and the tube body 30 will not be described in detail.

[0036] In this embodiment, between adjacent tube bodies 10 and 20 , the tube body located on the outer layer is the tube body 10 , and the tube body located on the inner layer is the tube body 20 .

[0037] When describing the limiting component, for the sake of convenience, the tube body 10 replaces the tube body located in the outer layer, and the tube body 20 replaces the tube body located in the inner layer.

[0038] The limiting component 40 includes a first limiting portion 41 and a second limiting portion 42. The first limiting portion 41 is provided at the front end of the tube body 10 and the second limiting portion 42 is provided at the rear end of the tube body 20. The first limiting portion 41 is located in front of the second limiting portion 42. The tube body 10 is located on the outer layer of the tube body 20.

[0039] The first limiting portion 41 and the second limiting portion 42 are both annular, and the inner diameter of the first limiting portion 41 is smaller than the outer diameter of the second limiting portion 42 .

[0040] The inner diameter of the first limiting portion 41 is greater than the outer diameter of the tube body 20 .

[0041] The outer diameter of the second limiting portion 42 is smaller than the inner diameter of the tube body 10 .

[0042] The first limiting portion 41 is disposed on the inner wall of the tube body 10 ; the second limiting portion 42 is disposed on the outer wall of the tube body 20 .

[0043] The limiting component 40 is provided with a sealing ring 43, which is provided on the first limiting portion 41. In other embodiments, the sealing ring is provided on the second limiting portion.

[0044] It should be noted that, in this embodiment, a telescopic fire hose gun comprising three tubes is provided; however, the number of tubes of the telescopic fire hose gun may also be other numbers.

[0045] The telescopic fire-fighting water gun of the utility model comprises a plurality of pipe bodies with different diameters, and the pipe bodies with different diameters are arranged in layers from small to large diameters and from inside to outside.

[0046] During use, the bayonet end at the rear end of the largest diameter tube is connected to the fire hose. Under the pressure of the fire hose, the tube within the largest diameter tube gradually slides, while the smallest diameter tube slides to the front. The adjacent tubes are prevented from separating due to the stopper. Under the influence of the water pressure, water flows through the outlet holes in the tube wall and sprays towards the fire source, thereby extinguishing the fire.

[0047] Take automobile fire protection as an example. Figure 4 As shown, when in use, first place the telescopic fire hose 60 under the chassis of the car 61 and connect the fire hose 62. After the connection is completed, open the fire hydrant and, under the action of water pressure, Figure 5 As shown, the tube bodies 20 and 30 of the telescopic fire hose will gradually open and cover the entire vehicle body, while water will be sprayed to the fire source through the water outlet holes on the tube wall, thereby achieving the purpose of extinguishing the fire.

[0048] The telescopic fire hose of this utility model can be placed outside the fire source during use. When the fire hydrant is opened, the telescopic fire hose will gradually extend and automatically reach the fire source, allowing for quick and convenient fire extinguishing while also increasing the fire extinguishing range. The hose body can be provided with a large number of water outlets, enabling 360-degree water discharge, thus achieving fire extinguishing over a wider range.

[0049] The telescopic fire-fighting water gun of the utility model can extinguish fire at a certain distance from the fire source without having to get close to the fire source, thereby effectively protecting the safety of personnel.

[0050] The telescopic fire-fighting water gun of the utility model can be extended into a narrow space and can continuously extinguish fire in the narrow space, especially having a good fire-extinguishing effect on fire sources in narrow spaces such as the bottom of a car chassis.

[0051] The telescopic fire-fighting water gun of the utility model can be placed near a fire source to extinguish the fire without the need to hold the gun in hand, thereby more effectively protecting the safety of personnel.

[0052] The telescopic fire-fighting water gun of the utility model has the advantages of being simple to operate and convenient to carry.

[0053] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A telescopic fire hose, characterized in that: It includes several tube bodies with different diameters, and the tube body with a larger diameter is sleeved on the outside of the tube body with a smaller diameter; multiple water outlet holes are opened on the tube walls of these tube bodies with different diameters; the rear end of the tube body with the largest diameter is provided with a bayonet end for connecting with an external water pipe; the front end of the tube body with the smallest diameter is provided with a sealing plate; in two adjacent tube bodies, a limiting component is provided between the front end of the tube body located on the outer layer and the rear end of the tube body located on the inner layer to prevent the tube body located on the inner layer from separating from the tube body located on the outer layer.

2. The telescopic fire-fighting water gun according to claim 1, characterized in that: The limiting component includes a first limiting portion and a second limiting portion. The first limiting portion is arranged at the front end of the tube body located at the outer layer, and the second limiting portion is arranged at the rear end of the tube body located at the inner layer. The first limiting portion is located in front of the second limiting portion.

3. The telescopic fire-fighting water gun according to claim 2, characterized in that: The first limiting portion and the second limiting portion are both annular, and the inner diameter of the first limiting portion is smaller than the outer diameter of the second limiting portion.

4. The telescopic fire-fighting water gun according to claim 3, characterized in that: The inner diameter of the first limiting portion is greater than the outer diameter of the tube body located in the inner layer.

5. The telescopic fire-fighting water gun according to claim 3, characterized in that: The outer diameter of the second limiting portion is smaller than the inner diameter of the tube body located on the outer layer.

6. The telescopic fire-fighting water gun according to claim 2, characterized in that: The first limiting portion is arranged on the inner wall of the tube body located at the outer layer; the second limiting portion is arranged on the outer wall of the tube body located at the inner layer.

7. The telescopic fire-fighting water gun according to claim 2, characterized in that: The limiting component is provided with a sealing ring, which is arranged on the first limiting portion or on the second limiting portion.

8. The telescopic fire-fighting water gun according to claim 1, characterized in that: The water outlet is a circular through hole.

9. The telescopic fire-fighting water gun according to claim 1, characterized in that: The sealing plate is fixed to the pipe body with the smallest diameter.

10. The telescopic fire-fighting water gun according to claim 1, characterized in that: The sealing plate is integrally formed on the pipe body with the smallest diameter.

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