Multifunctional fire-fighting lance

Abstract

The utility model discloses a multifunctional fire-fighting lance which comprises a spray gun joint, the end part of the spray gun joint is communicated with a jet pipe seat, the water outlet end of the jet pipe seat is connected with a nozzle, the nozzle is movably connected to the jet pipe seat so as to quickly change different modes to select different spraying densities, and a valve stop structure is arranged at the joint of the jet pipe seat and the nozzle. The water yield of the nozzle is gradually increased to the maximum in the process of communicating with the jet pipe seat, and water sources in the spray gun connector and the jet pipe seat are intercepted during disassembly. The plugging block is arranged to be matched with the spring to be exactly attached to the end of the staggered notch in the normal state to block water flow, the plugging block is made to be far away from the staggered notch under pushing of the driving column, a spray gun can be used for spraying, meanwhile, after the nozzle is detached, the plugging block can seal the jet pipe base, and water source leakage is avoided.

Description

Technical Field

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

[0002] Fire hoses are often used in firefighting engineering tools. Fire hoses are water-spraying tools for extinguishing fires. When connected to a hose, they can spray dense and substantial water flows. In the process of firefighting, different fires require different water flows. Although this type of hose can control the size of the water flow, it cannot adjust the impact force and density of the water flow. Existing fire hoses achieve the adjustment of the impact force and density of the water flow by switching the nozzles. However, during the switching process, the water flow in the nozzle joint connection pipe is prone to leaking in large quantities, causing waste, and it is easy to splash the user.

[0003] This case was created to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a multifunctional fire-fighting water gun, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a multifunctional fire-fighting water gun, including a spray gun joint, an end of which is connected to a jet pipe seat, and the water outlet end of the jet pipe seat is connected to a nozzle, characterized in that: the nozzle is movably connected to the jet pipe seat to quickly change different modes to select different spray densities, a valve stop structure is provided at the connection between the jet pipe seat and the nozzle, and the nozzle gradually increases the water output to a maximum during the process of connecting to the jet pipe seat, and the water source inside the spray gun joint and the jet pipe seat is intercepted when disassembled.

[0008] Preferably, an offset slot is provided inside the jet tube seat to form a radial dimension difference with the nozzle connection opening, the inner side wall of the offset slot is axially connected to a spring, the other end of the spring is connected to a blocking block, the outer side of the blocking block is connected to a small-sized extension column, and a driving column is axially arranged on the inner side of the nozzle connection.

[0009] Preferably, the axis lines of the driving column and the extension column coincide with each other and are respectively located at the rotation axis of the corresponding structure.

[0010] Preferably, the radial dimension of the blocking block is matched with the dimension of the dislocation slot, and the matching spring fits exactly against the end of the dislocation slot under normal conditions.

[0011] Preferably, the circumferential edge of the blocking block is arranged to be an arc-shaped transition, so that the water flow can be more buffered and diffused toward the circumference when contacting the blocking block, thereby reducing the impact force of the water flow.

[0012] (III) Beneficial effects

[0013] After adopting the above technical solution, the utility model has the following advantages compared with the prior art: the utility model is a multifunctional fire-fighting water gun, and a blocking block is arranged to cooperate with a spring to fit the end of the dislocated slot in a normal state, thereby blocking the water flow, and the blocking block is moved away from the dislocated slot by the driving column so that the spray gun can be used for spraying, and at the same time, after the nozzle is disassembled, the blocking block can seal the jet pipe seat to prevent water from leaking out. Secondly, during the process of tightening the nozzle, the gap between the blocking block and the dislocated slot gradually increases, and the water output is more sufficient, so that the water output can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the improved utility model;

[0017] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged local structure in the middle.

[0018] In the figure: 1, spray gun joint; 2, jet pipe seat; 3, nozzle; 4, offset notch; 5, spring; 6, blocking block; 7, extension column; 8, driving column; 9, external thread; 10, thread groove; 11, support rod. DETAILED DESCRIPTION

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

[0020] like Figure 1-2 As shown: a multifunctional fire-fighting water gun includes a spray gun joint 1, a jet pipe seat 2, and a nozzle 3. The jet pipe seat 2 is connected to the spray gun joint 1 and the two are in communication, and the nozzle 3 is movably connected to the jet pipe seat 2. The jet pipe seat 2 can be fixed to the spray gun joint 1 in an integral manner, or can be threadedly connected and assembled in a plug-in movably connected manner. The nozzle 3 is connected to the jet pipe seat 2 by a threaded connection (such as by setting a thread groove 10 and an external thread 9). The nozzle 3 can quickly change different modes to achieve different spray densities.

[0021] In the above method, when the nozzle 3 is replaced, the water in the spray gun joint 1 and the jet pipe seat 2 is easily leaked, causing waste, and the user is easily splashed. Therefore, the present application makes the following improvements.

[0022] See attached Figure 3-4 As shown, an offset notch 4 is provided inside the jet tube seat 2 to form a radial dimension difference at the opening where the jet tube seat 2 is connected to the nozzle 3. A spring 5 is axially connected to the inner side wall of the offset notch 4, and a blocking block 6 is connected to the other end of the spring 5. A small-sized extension column 7 is connected to the outer side of the blocking block 6. At the same time, a driving column 8 is axially arranged on the inner side of the nozzle 3 through a support rod 11. The driving column 8 coincides with the axial center line of the extension column 7, and is respectively located at the corresponding rotation axis. When the nozzle 3 is installed, it is rotated and inserted so that the driving column 8 pushes the extension column 7 inward.

[0023] It should be noted that the radial size of the blocking block 6 is adapted to the size of the offset slot 4, and the matching spring 5 fits the end of the offset slot 4 in a normal state to block the water flow. The driving column 8 pushes the blocking block 6 away from the offset slot 4, so that the spray gun can be used for spraying. After the nozzle 3 is disassembled, the blocking block 6 can seal the jet pipe seat 2 to prevent water from leaking out.

[0024] At the same time, during the tightening process of the nozzle 3, the gap between the blocking block 6 and the offset notch 4 gradually increases, the water output is more sufficient, and the water output is adjusted.

[0025] Furthermore, the circumferential edge of the blocking block 6 is configured to be an arc-shaped transition, so that when the water flow contacts the blocking block 6, it can be more buffered and diffused toward the circumference, thereby reducing the impact force of the water flow.

[0026] The above-mentioned embodiments are for inspiration. Through the above-mentioned description, relevant staff can make various changes and modifications without departing from the scope of the invention. The technical scope of this new type of use is not limited to the content in the specification, and its protection scope must be determined according to the scope of the claims.

Claims

1. A multifunctional fire-fighting water gun, comprising a spray gun joint, the end of which is connected to a jet pipe seat, and the water outlet end of the jet pipe seat is connected to a nozzle, characterized in that: The nozzle is movably connected to the jet pipe seat to quickly change different modes and select different spray densities. A valve stop structure is provided at the connection between the jet pipe seat and the nozzle. The nozzle gradually increases the water output to the maximum during the connection with the jet pipe seat. When disassembling, the water source inside the spray gun joint and the jet pipe seat is intercepted.

2. A multifunctional fire-fighting water gun according to claim 1, characterized in that: An offset slot is provided inside the jet tube seat to form a radial dimension difference with the nozzle connection opening. A spring is axially connected to the inner wall of the offset slot, and a blocking block is connected to the other end of the spring. A small-sized extension column is connected to the outer side of the blocking block, and a driving column is axially arranged on the inner side of the nozzle connection.

3. A multifunctional fire-fighting water gun according to claim 2, characterized in that: The driving column and the extension column have axial center lines that coincide with each other and are located at the rotation axis of the corresponding structure respectively.

4. A multifunctional fire-fighting water gun according to claim 2, characterized in that: The radial dimension of the blocking block is matched with the dimension of the dislocation slot, and the matching spring fits exactly with the end of the dislocation slot under normal conditions.

5. A multifunctional fire-fighting water gun according to claim 2, characterized in that: The circumferential edge of the blocking block is arranged to be in an arc-shaped transition, so that the water flow can be more buffered and diffused toward the circumference when contacting the blocking block, thereby reducing the impact force of the water flow.

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