A snap-on portable water gun

By designing a snap-on portable water gun and a ladder for fixed and flexible connection, the problem of using the water gun and ladder together was solved, achieving effective rescue and fire extinguishing effects in building fires.

CN224269997UActive Publication Date: 2026-05-26常德市消防救援支队
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
常德市消防救援支队
Filing Date
2025-06-24
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing technology lacks a water gun that is structurally and functionally compatible with extension ladders, making it impossible to effectively utilize the synergistic effect of water guns and extension ladders in building fire rescue.

Method used

A snap-on portable water gun was designed, which fixes the water gun to the extension ladder through a snap-on mechanism. The direction of the water gun head is adjusted by a hydraulic rotary joint, and the water hose can be detachably connected for extension, so that the water gun and the extension ladder can be used together to meet different fire fighting needs.

Benefits of technology

It enables flexible coordination between water cannons and extension ladders, allowing for cooling and protection of trapped personnel and internal fire extinguishing in building fires, thus improving rescue efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model pertains to fire extinguishing and rescue equipment, providing a snap-on portable water gun, comprising a water gun body and a water gun snap fastener. The water gun body is secured by a clamp within the snap fastener. A first L-shaped frame, a second L-shaped frame, and a limiting clamp, combined with a first C-shaped clamp and a second C-shaped clamp, allow the water gun fastener to be detachably connected to two steps near the top of a ladder, enabling the ladder and water gun to be used together. An external snap-on interface at the end of the water gun pipe can be connected to a water hose for water delivery. The water gun body, via a connected hydraulic rotary joint, can rotate the snap-on water gun head. During breaching and rescue operations, the snap-on water gun head is rotated towards the inside of the building to spray water and cool and protect trapped personnel from smoke and heat. During internal fire attack, the snap-on water gun head is turned outwards to vent smoke and cool the area. The snap-on water gun head at the end of the water gun body can be detached and extended using a water hose connected via the external snap-on interface for internal fire attack.
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Description

Technical Field

[0001] This utility model pertains to fire extinguishing and rescue equipment, and particularly relates to a snap-on portable water gun. Background Technology

[0002] When firefighting, water guns are connected to water hoses to spray a dense and powerful stream of water. They have advantages such as long range and large water volume. According to different jet forms and characteristics, they can be divided into straight stream water guns, spray water guns, multi-purpose water guns, etc. Among them, the most commonly used water guns are straight stream water guns and spray water guns.

[0003] Extension ladders play an important role in scenarios such as building fire rescue, high-altitude trapped person rescue, and fire fighting skills training. They are often used in fire fighting and rescue to build rescue channels and open up fire fighting and rescue paths.

[0004] Using water guns in conjunction with extension ladders can protect people trapped on windowsills and provide cover for rescuers to break through barriers, but currently there is no water gun that is structurally and functionally designed to work with extension ladders. Utility Model Content

[0005] This utility model provides a snap-on portable water gun, which aims to solve the above-mentioned technical problems.

[0006] This utility model is implemented as follows: a snap-on portable water gun includes a water gun body and a water gun buckle. The water gun body includes a water gun tube and a two-way valve, with the water gun tube threadedly connected to the two-way valve. The water gun buckle includes a clamp, a first L-shaped frame, a second L-shaped frame, and a limiting clamp. The clamp is detachably connected to the water gun tube. The top of the first L-shaped frame is vertically connected to the bottom of the clamp. The second L-shaped frame is vertically connected to the first L-shaped frame. The limiting clamp is slidably connected to the second L-shaped frame. A screw is threadedly connected to the top of the limiting clamp, and one end of the screw is rotatably connected to a first C-shaped clamp. The vertical connection between the first L-shaped frame and the second L-shaped frame forms a second C-shaped clamp, which is positioned opposite to the first C-shaped clamp.

[0007] Furthermore, the water gun body also includes a hydraulic rotary joint, a bend joint, and a snap-fit ​​water gun head. The two-way valve is threaded to the hydraulic rotary joint, the hydraulic rotary joint is threaded to the bend joint, the bend joint and the snap-fit ​​water gun head are detachably connected through a pair of external snap-fit ​​interfaces, and the end of the water gun pipe is also connected to an external snap-fit ​​interface.

[0008] Furthermore, the two-way valve is a ball valve.

[0009] Furthermore, one side of the two semi-rings of the clamp is rotatably connected, and the other side of one semi-ring is rotatably connected to a T-shaped screw. The T-shaped screw is matched with a wing nut. The other side of the two semi-rings of the clamp is then pressed together by threaded connection between the T-shaped screw and the wing nut.

[0010] Furthermore, the limiting clamp is a bridge raft spring-type quick-release clamp module.

[0011] Furthermore, a T-shaped wrench is connected to the end of the screw.

[0012] Furthermore, the pipe bend is a 90-degree bend.

[0013] This utility model provides a snap-on portable water gun. The water gun body is secured by a clamp in the snap-on mechanism. A first L-shaped frame, a second L-shaped frame, and a limiting clamp, combined with a first C-shaped clamp and a second C-shaped clamp, allow the water gun snap-on mechanism to be detachably connected to the two steps near the top of a ladder, enabling the ladder and water gun to work together. The external snap-on interface at the end of the water gun pipe can be connected to a water hose for water delivery. The water gun body can rotate the snap-on water gun head via a connected hydraulic rotary joint. During demolition and rescue operations, the snap-on water gun head is rotated towards the inside of the building to spray water and cool and protect trapped personnel from smoke and heat. During internal fire attack, the snap-on water gun head is turned outwards to ventilate and cool the building. The snap-on water gun head at the end of the water gun body can be detached and extended by connecting a water hose via the external snap-on interface, switching to a water hose-connected spray mode for internal fire attack. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the snap-on portable water gun provided in this embodiment of the utility model.

[0015] Figure 2 This is a structural diagram of the water gun body.

[0016] Figure 3 This is a schematic diagram of the water gun clip structure.

[0017] Figure 4 yes Figure 3 A diagram from another perspective.

[0018] Figure 5 This is a structural diagram of the clamp.

[0019] Figure 6 This is a schematic diagram of the snap-on portable water gun and the pull ladder provided in this embodiment of the utility model.

[0020] The numbers in the diagram represent: 01-ladder, 02-step, 1-water gun pipe, 2-two-way valve, 3-external snap-fit ​​connector, 4-hydraulic rotary joint, 5-bend connector, 6-snap-fit ​​water gun head, 7-clamp, 8-first L-shaped frame, 9-second L-shaped frame, 10-limiting clamp, 11-screw, 12-first C-shaped clamp, 13-second C-shaped clamp, 14-T-screw, 15-wing nut, 16-T-wrench. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] See Figures 1-6 This utility model provides a snap-on portable water gun for use with a ladder 01. It includes a water gun body and a water gun snap. The water gun body includes a water gun pipe 1 and a two-way valve 2. The water gun pipe 1 is threadedly connected to the two-way valve 2.

[0023] The water gun pipe 1 is a 40-type alloy pipe. The end of the water gun pipe 1 is connected to an external snap-fit ​​connector 3, which is a 40-type external snap-fit ​​connector used to connect fire hoses.

[0024] The two-way valve 2 uses a ball valve, and the handle on the ball valve controls the opening and closing of the water gun's water path.

[0025] The water gun body also includes a hydraulic rotary joint 4, a bend joint 5, and a snap-fit ​​water gun head 6. The two-way valve 2 is threaded to the hydraulic rotary joint 4, and the hydraulic rotary joint 4 is threaded to the bend joint 5. The bend joint 5 and the snap-fit ​​water gun head 6 are detachably connected through a pair of interlocking interfaces 3.

[0026] The hydraulic rotary joint 4 is a hydraulic joint that can rotate 360 ​​degrees. After being connected to the snap-on water gun head 6 through the elbow joint 5, the orientation of the snap-on water gun head 6 can be adjusted 360 degrees.

[0027] The elbow joint 5 uses a 90-degree elbow joint, so that when the water gun body is fixed to the top of the extension ladder 01 by the water gun buckle, rotating the hydraulic rotary joint 4 can make the buckle-type water gun head 6 spray towards the interior of the building to cool and protect the trapped personnel surrounded by smoke and heat. Alternatively, rotating the hydraulic rotary joint 4 can make the buckle-type water gun head 6 spray outward to exhaust smoke and cool down during internal fire attack.

[0028] The snap-on water nozzle 6 uses the LD6.0 / 4I type 40 snap-on multi-functional water nozzle, made of stainless steel and with a high-pressure design, offering both direct water jet and spray modes. The snap-on water nozzle 6 and the elbow connector 5 are detachably connected via a pair of snap-on interfaces 3 for internal hose extension and replacement.

[0029] The water gun clip includes a clamp 7, a first L-shaped frame 8, a second L-shaped frame 9, and a limiting clamp 10. The clamp 7 is detachably connected to the water gun pipe 1. The top of the first L-shaped frame 8 is vertically connected to the bottom of the clamp 7. The second L-shaped frame 9 is vertically connected to the first L-shaped frame 8. The limiting clamp 10 is slidably connected to the second L-shaped frame 9. A screw 11 is threadedly connected to the top of the limiting clamp 10. One end of the screw 11 is rotatably connected to a first C-shaped clamp 12. The vertical connection between the first L-shaped frame 8 and the second L-shaped frame 9 forms a second C-shaped clamp 13. The first C-shaped clamp 12 and the second C-shaped clamp 13 are arranged opposite to each other.

[0030] The clamp 7 fixes the water gun body by fixing the water gun pipe 1. The clamp 7 has two rotatably connected semi-rings. One side of the two semi-rings of the clamp 7 is rotatably connected, and the other side of one semi-ring is rotatably connected to a T-screw 14. The T-screw 14 is matched with a wing nut 15. The other side of the two semi-rings of the clamp 7 is pressed together by threaded connection between the T-screw 14 and the wing nut 15.

[0031] One side of one half-ring of the clamp 7 extends outward and has a U-shaped groove in the middle. A T-screw 14 is rotated and connected within the U-shaped groove. The other half-ring also extends outward and has a U-shaped groove in the middle. After the T-screw 14 is rotated until it is simultaneously located within the U-shaped grooves of both half-rings, the wing nut 15 is rotated to press and fix the two half-rings at their extended ends, thereby securing the water gun pipe 1 with the clamp 7. Furthermore, to improve the fixing effect, rubber rings can be installed on the inner surfaces of the two half-rings of the clamp 7.

[0032] The first L-shaped bracket 8 is used to offset the clamp 7 by a certain distance in the first direction, and the second L-shaped bracket 9 is used to offset the first L-shaped bracket 8 by a certain distance in the second direction. The limiting clamp can move closer to or away from the vertical connection point of the first L-shaped bracket 8 and the second L-shaped bracket 9 in the third direction, i.e., the second C-shaped clamp 13. With this configuration, when the water gun pipe 1 is fixed by the clamp 7 and the first C-shaped clamp 12 and the second C-shaped clamp 13 are clamped and fixed on the extension ladder 01, the water gun body can be kept parallel to the surface of the extension ladder 01, so that rotating the hydraulic rotary joint 4 can make the snap-on water gun head 6 face the interior or exterior of the building.

[0033] The limiting clamp 10 adopts a bridge raft spring-type quick clamp module. According to the distance between the two steps 02 of the ladder 01 to be fixed, the steel plate on the quick clamp module is moved to push the limiting clamp 10, which drives the screw 11 and the first C-shaped clamp 12 to move horizontally, so that the distance between the first C-shaped clamp 12 and the second C-shaped clamp 13 is greater than the distance between the two steps 02, and the position is initially adjusted.

[0034] The opening dimensions of the first C-shaped clip 12 and the second C-shaped clip 13 match the dimensions of the steps 02 of the pull ladder 01. A T-shaped wrench 16 is connected to the end of the screw 11. After initial position adjustment, the second C-shaped clip 13 is engaged on one step 02. The screw 11 is rotated using the T-shaped wrench 16 to engage the first C-shaped clip 12 on the other step 02 until it is clamped tightly, thus achieving relative fixation between the water gun clip and the pull ladder 01.

[0035] Furthermore, the water gun clip in this invention can also be fixed to windowsills and stair railings. Specifically, the first C-shaped clip 12 and the second C-shaped clip 13 are used to clamp the inner and outer sides of the windowsill and fix it to the windowsill; the first C-shaped clip 12 and the second C-shaped clip 13 are respectively used to clamp onto two parallel railings of the staircase, and rotating the screw 11 will drive the first C-shaped clip 12 to clamp tightly.

[0036] In summary, when the snap-on portable water gun provided in this embodiment of the present invention is used in conjunction with a pull ladder, the water gun body is connected to the water gun pipe 1, the two-way valve 2, the hydraulic rotary joint 4, the elbow joint 5, and the snap-on water gun head 6. The end of the water gun pipe 1 is connected to the external snap-on interface 3, and the elbow joint 5 and the snap-on water gun head 6 are connected through a pair of external snap-on interfaces 3. Pushing the limiting clamp 10 causes the first C-shaped clamp 12 and the second C-shaped clamp 13 to be pulled apart by a distance greater than the distance between two adjacent steps 02 on the pull ladder 01. The second C-shaped clamp 13 is snapped onto one step 02, and the screw 11 is rotated using the T-wrench 16 to bring the first C-shaped clamp 12 closer to the other step 02 until it is snapped onto it. The screw 11 is then rotated until it is clamped tightly. The water gun pipe 1 is placed inside the clamp 7, the clamp 7 is closed, the T-screw 14 is rotated into the U-shaped groove of the two semi-rings of the clamp 7, and the wing nut 15 is rotated to press and fix the two semi-rings. Connect the external snap-fit ​​connector 3 at the end of the water gun pipe 1 to the water hose. Position the extension ladder 01 relative to the building window. When water needs to be sprayed into the building interior, rotate the hydraulic rotary joint 4 to make the snap-fit ​​water gun head 6 face inward and open the valve of the two-way valve 2. When water needs to be sprayed outward, rotate the hydraulic rotary joint 4 to make the snap-fit ​​water gun head 6 face outward. When it is necessary to extend the water hose for internal fire attack, rotate and disconnect the pair of external snap-fit ​​connectors 3 connecting the elbow joint 5 to the snap-fit ​​water gun head 6, remove the snap-fit ​​water gun head 6, and use the external snap-fit ​​connector 3 of the snap-fit ​​water gun head 6 to connect the water hose separately for extension. Switch to the spray mode of the snap-fit ​​water gun head 6 connected to the water hose for internal fire attack.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A snap-on portable water gun, characterized in that, The device includes a water gun body and a water gun clip. The water gun body includes a water gun pipe and a two-way valve. The water gun pipe is threadedly connected to the two-way valve. The water gun buckle includes a clamp, a first L-shaped frame, a second L-shaped frame, and a limiting clamp. The clamp is detachably connected to the water gun pipe. The top of the first L-shaped frame is vertically connected to the bottom of the clamp. The second L-shaped frame is vertically connected to the first L-shaped frame. The limiting clamp is slidably connected to the second L-shaped frame. A screw is threadedly connected to the top of the limiting clamp. One end of the screw is rotatably connected to a first C-shaped clamp. The vertical connection between the first L-shaped frame and the second L-shaped frame forms a second C-shaped clamp, and the first C-shaped clamp and the second C-shaped clamp are arranged opposite to each other.

2. The snap-on portable water gun according to claim 1, characterized in that, The water gun body also includes a hydraulic rotary joint, a bend joint, and a snap-fit ​​water gun head. The two-way valve is threaded to the hydraulic rotary joint, and the hydraulic rotary joint is threaded to the bend joint. The bend joint and the snap-fit ​​water gun head are detachably connected through a pair of external snap-fit ​​interfaces. The end of the water gun pipe is also connected to an external snap-fit ​​interface.

3. The snap-on portable water gun according to claim 1, characterized in that, The two-way valve is a ball valve.

4. The snap-on portable water gun according to claim 1, characterized in that, The clamp has two half-rings rotatably connected on one side, and a T-shaped screw rotatably connected on the other side of one half-ring. The T-shaped screw is matched with a wing nut. The other sides of the two half-rings of the clamp are threadedly connected to the wing nut by the T-shaped screw and then pressed together.

5. The snap-on portable water gun according to claim 1, characterized in that, The limiting clamp is a bridge raft spring-type quick-release clamp module.

6. The snap-on portable water gun according to claim 1, characterized in that, A T-shaped wrench is connected to the end of the screw.

7. The snap-on portable water gun according to claim 2, characterized in that, The pipe bend is a 90-degree bend.