Multifunctional fire-fighting lance for fire fighting

Abstract

The utility model discloses a multifunctional fire-fighting lance for fire protection, which belongs to the technical field of fire-fighting tools and comprises a lance head, a quantity control mechanism is fixedly connected to the inner surface of the lance head, two positioning blocks are fixedly connected to the outside of the quantity control mechanism, and a handle is fixedly connected to the outer surfaces of the two positioning blocks jointly. By means of the quantity control mechanism, when the fire-fighting lance is used, the water quantity can be accurately adjusted, the opening and closing angle of the closing plate can be accurately adjusted through meshing transmission of the first gear and the second gear in cooperation with the connecting rod linkage mechanism, control over the water flow is achieved, and the requirements of different fire behaviors for the water quantity are met; the fire-fighting lance can be used in two different modes, the fire-fighting lance can be used in a handheld mode and can also be fixed to a certain point to be used, the use is convenient, the function that the water volume is controllable can be achieved, and the practicability of the fire-fighting lance is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting tools technology, and more specifically, to a multi-functional fire hose for firefighting. Background Technology

[0002] Fire hoses are water jetting tools used for extinguishing fires. When connected to a fire hose, they spray a dense and powerful stream of water, offering advantages such as long range and large water volume. Based on different jet patterns and characteristics, they can be classified into straight stream hoses, spray hoses, and multi-purpose hoses, among which straight stream hoses and spray hoses are the most commonly used.

[0003] Chinese Patent Publication No. CN218187635U discloses a multi-functional fire hose reel. This design, through the fixing and releasing of the mounting block, allows firefighters to more easily replace and maintain the nozzle, simplifying subsequent maintenance and making the device easier to use. The firefighter slides the mounting block into the mounting groove, releases the rotating column, and the spring returns to its original position, allowing the power frame to slide into the fixing groove, thus securing the nozzle. This makes installation and removal of the nozzle much easier. However, in practice, the following drawbacks exist: the fire hose reel can only be used by hand and cannot be fixed in one position; furthermore, the water flow cannot be adjusted, presenting certain limitations.

[0004] Therefore, a multi-functional fire hose for firefighting is proposed to address the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a multi-functional fire hose for firefighting, which can realize the function of controllable water volume.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A multi-functional fire hose for firefighting includes a nozzle head. A control mechanism is fixedly connected to the inner surface of the nozzle head. The control mechanism includes a connecting pipe. A control component is fixedly connected to the inner surface of the connecting pipe. A grip component is fixedly connected to the outer surface of the connecting pipe. A water inlet pipe is fixedly connected inside the control component. A snap-fit ​​component is threadedly connected to the inner surface of the water inlet pipe. Two positioning blocks are fixedly connected to the outside of the control mechanism. A handle is fixedly connected to the outer surface of the two positioning blocks.

[0010] Furthermore, the control component includes a housing with a circular hole at the front end. Five positioning pins are fixedly connected to the inner surface of the housing. A gear is slidably connected to the outer surfaces of the five positioning pins. Five connecting rods are rotatably connected to the inner surfaces of the gears via bolts. A sealing plate is rotatably connected to the inner surfaces of the five connecting rods via bolts. Five positioning pins are rotatably connected to the inner surface of the sealing plate. A limit ring is fixedly connected to the outer surfaces of the five positioning pins. All five outer surfaces of the positioning pins are fixedly connected to the inner surface of the housing.

[0011] Furthermore, the grip assembly includes a connecting plate, with two control buttons fixedly connected to the upper end of the connecting plate, a motor fixedly connected to the upper end of the connecting plate, a gear II fixedly connected to the output end of the motor via a coupling, and a handle fixedly connected to the rear end of the connecting plate, with the inner surface of the handle fixedly connected to the outer surface of the connecting tube.

[0012] Furthermore, the snap-fit ​​assembly includes a threaded connector, the outer surface of which is threadedly connected to the inner surface of the inlet pipe, a snap-fit ​​ring fixedly connected to the rear end of the threaded connector, a snap-fit ​​tube fixedly connected to the inner surface of the snap-fit ​​ring, and two snap-fit ​​blocks fixedly connected to the rear end of the snap-fit ​​ring.

[0013] Furthermore, the outer surface of the second gear meshes with the outer surface of the first gear, and the inner surface of the connecting plate is fixedly connected to the outer surface of the outer shell.

[0014] Furthermore, the outer surface of the outer shell is fixedly connected to the inner surface of the connecting pipe, and the rear end of the outer shell is fixedly connected to the front end of the water inlet pipe.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This solution uses a control mechanism to precisely adjust the water flow when using the fire hose. Through the meshing transmission of gear one and gear two, combined with the linkage mechanism, the opening and closing angle of the sealing plate can be precisely adjusted to control the water flow and meet the water demand of different fire situations. The grip component allows the fire hose to be used in two different ways: it can be used by hand or fixed at a certain point, which is more convenient and improves the practicality of the fire hose. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the measurement control mechanism of this utility model;

[0020] Figure 3This is a schematic diagram of the quantity control component of this utility model;

[0021] Figure 4 This is a schematic diagram of the gripping component of this utility model;

[0022] Figure 5 This is a schematic diagram of the snap-fit ​​assembly of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Water gun head; 2. Volume control mechanism; 21. Connecting pipe; 22. Grip assembly; 221. Connecting plate; 222. Control button; 223. Motor; 224. Gear II; 225. Handle; 23. Volume control assembly; 231. Housing; 232. Round hole; 233. Positioning pin I; 234. Gear I; 235. Connecting rod; 236. Sealing plate; 237. Limiting ring; 238. Positioning pin II; 24. Water inlet pipe; 25. Snap-fit ​​assembly; 251. Threaded connector; 252. Snap-fit ​​ring; 253. Snap-fit ​​pipe; 254. Snap-fit ​​block; 3. Positioning block; 4. Handle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] Please see Figure 1-5 A multi-functional fire hose for firefighting includes a nozzle head 1. A control mechanism 2 is fixedly connected to the inner surface of the nozzle head 1. The control mechanism 2 includes a connecting pipe 21. A control component 23 is fixedly connected to the inner surface of the connecting pipe 21. A grip component 22 is fixedly connected to the outer surface of the connecting pipe 21. A water inlet pipe 24 is fixedly connected inside the control component 23. A snap-fit ​​component 25 is threadedly connected to the inner surface of the water inlet pipe 24. Two positioning blocks 3 are fixedly connected to the outside of the control mechanism 2. A handle 4 is fixedly connected to the outer surface of the two positioning blocks 3.

[0030] This solution uses the snap-fit ​​component 25 to quickly connect the fire hose and the fire nozzle when needed, allowing the fire hydrant to supply water to the nozzle through the hose. The grip component 22 provides two usage methods: it can be held with both hands for increased stability, or the nozzle can be fixed in a suitable location. The control component 23, working in conjunction with the grip component 22, makes controlling the water flow simple and quick, allowing for adjustments to the water volume based on the intensity of the fire, thus conserving water while extinguishing it.

[0031] Please see Figure 2-5 The volume control component 23 includes a housing 231. The outer surface of the housing 231 is fixedly connected to the inner surface of the connecting pipe 21. The rear end of the housing 231 is fixedly connected to the front end of the water inlet pipe 24. A circular hole 232 is opened at the front end of the housing 231. Five positioning pins 233 are fixedly connected to the inner surface of the housing 231. Gear 234 is slidably connected to the outer surfaces of the five positioning pins 233. Five connecting rods 235 are rotatably connected to the inner surfaces of the gears 234 by bolts. A sealing plate 236 is rotatably connected to the inner surfaces of the five connecting rods 235 by bolts. Five positioning pins 238 are rotatably connected to the inner surface of the sealing plate 236. A limit ring 237 is fixedly connected to the outer surfaces of the five positioning pins 238. The outer surfaces of the five positioning pins 238 are all fixedly connected to the inner surface of the housing 231.

[0032] The grip assembly 22 includes a connecting plate 221, the inner surface of which is fixedly connected to the outer surface of the housing 231. Two control buttons 222 are fixedly connected to the upper end of the connecting plate 221. A motor 223 is fixedly connected to the upper end of the connecting plate 221. A gear 224 is fixedly connected to the output end of the motor 223 via a coupling. The outer surface of the gear 224 meshes with the outer surface of the gear 234. A handle 225 is fixedly connected to the rear end of the connecting plate 221. The inner surface of the handle 225 is fixedly connected to the outer surface of the connecting tube 21.

[0033] The snap-fit ​​assembly 25 includes a threaded connector 251, the outer surface of which is threadedly connected to the inner surface of the water inlet pipe 24. A snap-fit ​​ring 252 is fixedly connected to the rear end of the threaded connector 251. A snap-fit ​​pipe 253 is fixedly connected to the inner surface of the snap-fit ​​ring 252. Two snap-fit ​​blocks 254 are fixedly connected to the rear end of the snap-fit ​​ring 252.

[0034] This solution connects the snap ring 252 to the inlet pipe 24 via the threaded connector 251. The inlet pipe 24 then connects the outer casing 231 and the snap ring 252. Using the hose connector, two snap blocks 254, and the snap pipe 253, the hose and nozzle are connected. The method of use can be selected according to specific needs. The handle 4 and grip 225 allow for simultaneous gripping from both above and below the nozzle, improving stability during use and preventing the nozzle from slipping due to the impact of the high-pressure water flow. The handle 4 also facilitates lifting the nozzle for firefighters. Furthermore, the connecting plate 221 and bolts allow the fire nozzle to be fixed at a specific point, enabling continuous water spraying from that point without requiring the firefighter to hold it.

[0035] Firefighters press two control buttons 222. One button increases the water flow, and the other decreases it. When the increase button is pressed, the motor 223 drives the second gear 224 to rotate clockwise, which in turn drives the first gear 234 to rotate counterclockwise. At this time, the first gear 234 pushes the sealing plate 236 outward through five connecting rods 235. With the continuous action of the motor 223, the passage blocked by the sealing plate 236 will be unblocked, and the water can flow smoothly.

[0036] When the fire weakens, the water volume needs to be reduced. At this time, press the control reduction button. Then, the motor 223 drives the gear 224 to rotate counterclockwise. At this time, the sealing plate 236 retracts inward, which reduces the cross-sectional area of ​​the water flow channel, thus avoiding water loss and maintaining the cooling of the fire.

[0037] It should be noted that the specific installation method, circuit connection method, oil circuit connection method and control method in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0038] Working principle: When a fire hose is needed, the threaded connector 251 is used to connect the snap ring 252 to the inlet pipe 24. At this time, the inlet pipe 24 will connect the outer shell 231 and the snap ring 252. With the cooperation of the hose connector, two snap blocks 254 and the snap pipe 253, the hose and the hose nozzle are connected together. The method of use can be selected according to specific needs. With the cooperation of the handle 4 and the grip 225, the hose nozzle can be gripped from both the top and bottom positions, which improves the stability of the hose nozzle during use and avoids the impact of the high-pressure water flow that could cause the hose nozzle to slip out of the hand. The handle 4 also makes it easier for firefighters to lift the hose nozzle. In addition, with the cooperation of the connecting plate 221 and bolts, the fire hose nozzle can be fixed at a certain point, and water can be sprayed continuously from that point without the firefighter having to hold it.

[0039] During use, the water flow rate of the water gun can be adjusted by pressing the control button 222. When the control button 222 is pressed, the motor 223 controls the gear 224 to rotate, which in turn drives the gear 234 meshing with it to rotate. The gear 234 slides along the outer surface of the five positioning pins 233 and rotates the five connecting rods 235 at the same time. The five connecting rods 235 adjust the position of the five sealing plates 236 to adjust the opening size of the slots blocked by the five sealing plates 236, thereby controlling the water flow rate. The larger the opening, the larger the water flow. After the water flows smoothly through, it enters the connecting pipe 21 and finally sprays out from the water gun head 1 for fire fighting.

[0040] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A multi-functional fire hose for firefighting, comprising a nozzle (1), characterized in that: The water gun head (1) has a volume control mechanism (2) fixedly connected to its inner surface. The volume control mechanism (2) includes a connecting pipe (21). The connecting pipe (21) has a volume control component (23) fixedly connected to its inner surface. The connecting pipe (21) has a grip component (22) fixedly connected to its outer surface. The volume control component (23) has a water inlet pipe (24) fixedly connected inside. The water inlet pipe (24) has a snap-fit ​​component (25) threadedly connected to its inner surface. The volume control mechanism (2) has two positioning blocks (3) fixedly connected to its outer surface. The two positioning blocks (3) have a handle (4) fixedly connected to their outer surfaces.

2. The multifunction fire-fighting lance according to claim 1, characterized in that: The control component (23) includes a housing (231). A circular hole (232) is provided at the front end of the housing (231). Five positioning pins (233) are fixedly connected to the inner surface of the housing (231). A gear (234) is slidably connected to the outer surface of the five positioning pins (233). Five connecting rods (235) are rotatably connected to the inner surface of the gear (234) by bolts. A sealing plate (236) is rotatably connected to the inner surface of the five connecting rods (235) by bolts. Five positioning pins (238) are rotatably connected to the inner surface of the sealing plate (236). A limit ring (237) is fixedly connected to the outer surface of the five positioning pins (238). The outer surfaces of the five positioning pins (238) are all fixedly connected to the inner surface of the housing (231).

3. The multi-functional fire-fighting lance according to claim 2, characterized in that: The grip assembly (22) includes a connecting plate (221), two control buttons (222) are fixedly connected to the upper end of the connecting plate (221), a motor (223) is fixedly connected to the upper end of the connecting plate (221), a gear (224) is fixedly connected to the output end of the motor (223) through a coupling, and a handle (225) is fixedly connected to the rear end of the connecting plate (221), with the inner surface of the handle (225) fixedly connected to the outer surface of the connecting tube (21).

4. The multi-functional fire-fighting monitor according to claim 1, characterized in that: The snap-fit ​​assembly (25) includes a threaded connector (251), the outer surface of which is threadedly connected to the inner surface of the water inlet pipe (24), a snap-fit ​​ring (252) is fixedly connected to the rear end of the threaded connector (251), a snap-fit ​​tube (253) is fixedly connected to the inner surface of the snap-fit ​​ring (252), and two snap-fit ​​blocks (254) are fixedly connected to the rear end of the snap-fit ​​ring (252).

5. The multi-functional fire-fighting monitor according to claim 3, characterized in that: The outer surface of gear two (224) meshes with the outer surface of gear one (234), and the inner surface of the connecting plate (221) is fixedly connected to the outer surface of the outer shell (231).

6. The multi-functional fire-fighting monitor according to claim 2, characterized in that: The outer surface of the outer shell (231) is fixedly connected to the inner surface of the connecting pipe (21), and the rear end of the outer shell (231) is fixedly connected to the front end of the water inlet pipe (24).

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