Handheld fire-fighting spray gun convenient to adjust

Abstract

According to the handheld fire-fighting spray gun convenient to adjust, the spray gun switch composed of the ball valve and the atomization assembly is arranged on the spray gun body composed of the flow stabilizing pipe, and the holding piece composed of the fixed grip and the rotating grip is arranged on the side face of the spray gun body. A spraying piece composed of a blooming assembly and a nozzle is arranged at the end, away from the holding piece, of the rotating handle, and a blooming transmission assembly connected with the rotating handle and the blooming assembly is arranged in the spraying piece; the fire-fighting spray gun is simple in structure and easy to operate, after the spray gun switch is turned on, water flow spraying forms such as direct-flow water columns, atomized water flow and blooming water flow can be selected by adjusting the atomization knob and rotating the grip respectively so as to meet different fire-fighting scenes such as different range requirements, different coverage areas and different comburent, the practicability of the fire-fighting spray gun is improved, and the fire-fighting spray gun is worthy of popularization and application. The requirement for flexible and rapid fire extinguishing can be met, meanwhile, the auxiliary grip wrapped with the anti-skid layer and the auxiliary grip are more convenient for a user to hold the fire-fighting spray gun, and the situation of falling off is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire-fighting spray guns, and in particular relates to a handheld fire-fighting spray gun which is easy to adjust. Background Art

[0002] Fire refers to a fire that is out of control. It is a kind of combustion phenomenon with catastrophic characteristics that causes damage to human life and property during its spread and development. It has the characteristics of high frequency and great destructiveness. Because of the advantages of easy access to water, low cost and no pollution, and the small size of the whole set of equipment required, it can be installed on a car for remote operation, the fire extinguishing process is safe, and the fire extinguishing effect is obvious. Using a fire spray gun to connect a high-pressure water source such as a fire truck or a fire pump through a hose to spray a large amount of water to extinguish the fire is currently the most commonly used fire extinguishing method. With the development of production and technology, changes in social material living conditions and an increase in population, fire situations are becoming more and more complicated. Fire spray guns, as the core components of firefighting work such as water spraying, need to change the water flow state in time according to the needs of firefighting work in order to cope with complex and changeable combustion conditions. However, some existing spray guns can only have one state of water flow, and some can change the water flow state but the operation is relatively cumbersome and the fire extinguishing efficiency is low.

[0003] The utility model provides an easily adjustable handheld fire spray gun, which integrates a spray gun switch, an atomizing component and a blooming component, optimizes the adjustment operation steps, and reduces the time consumption of the fire spray gun in adjusting the water flow process, so as to more flexibly cope with different fire extinguishing scenarios such as different range requirements, different coverage areas and different combustibles. Utility Model Content

[0004] In view of the above-mentioned existing problems, the utility model proposes a handheld fire spray gun which is easy to adjust, and integrates a spray gun switch, an atomization component and a flowering component, optimizes the adjustment operation steps, and reduces the time consumption of the fire spray gun in adjusting the water flow process, so as to more flexibly respond to different fire extinguishing scenarios such as different range requirements, different coverage areas and different combustible materials.

[0005] To achieve the above-mentioned purpose, the utility model provides an easily adjustable handheld fire-fighting spray gun, comprising a spray gun body, a spray piece, a gripping piece and a spray gun switch; the spray piece is arranged at one end of the spray gun body, comprising a flowering component connected to one end of the spray gun body and a nozzle connected to the flowering component; the gripping piece is arranged on the side of the spray gun body, comprising a fixed handle fixed to the side of the spray gun body and a rotating handle arranged in the fixed handle; the spray gun switch is arranged on the spray gun body, comprising a ball valve and an atomizing component arranged on the ball valve; the spray gun body is a flow stabilizing tube, and a flowering transmission component is arranged in the flow stabilizing tube, one end of the flowering transmission component is connected to the rotating handle, and the other end is connected to the flowering component.

[0006] Preferably, the flowering component is a double-layer conical tube, including an adjusting outer layer fixedly connected between the spray gun body and the nozzle and an adjusting inner layer rotatable within the adjusting outer layer, the adjusting inner layer is connected to the flowering transmission component at one end close to the spray gun body, and the adjusting outer layer and the adjusting inner layer are both provided with outlet holes.

[0007] Preferably, the flowering transmission assembly includes a main transmission rod, a first transmission gear set connecting the rotating handle and the main transmission rod, and a second transmission gear set connecting the main transmission rod and the flowering assembly.

[0008] Preferably, the ball valve includes a valve seat arranged in the flow stabilizing tube, a spherical valve core rotatably arranged in the valve seat, a ball valve knob arranged on the outer surface of the flow stabilizing tube, and a valve stem connecting the spherical valve core and the ball valve knob, and a horizontal channel is provided through the spherical valve core.

[0009] Preferably, the atomization assembly includes a rotatable vertical mounting rod disposed on the horizontal channel and a rotatable guide fan disposed on the vertical mounting rod, and an atomization knob is disposed at one end of the vertical mounting rod away from the guide fan.

[0010] Preferably, the guide fan has at least two guide blades, and the tail ends of the guide blades are curved with a certain arc.

[0011] Preferably, an openable and closable cover is provided on the outer side of one end of the nozzle away from the flowering component.

[0012] Preferably, the flow stabilizing tube is a double-layer structure, including an outer flow stabilizing tube, an inner flow stabilizing tube and a flow stabilizing member connected between the outer flow stabilizing tube and the inner flow stabilizing tube.

[0013] Preferably, the gripping piece further comprises an auxiliary grip, and the outer layers of the fixed grip and the auxiliary grip are wrapped with an anti-slip layer.

[0014] Preferably, a water pipe connector is provided at one end of the flow-stabilizing main pipe away from the nozzle member, and a plurality of sealing rings are provided inside the water pipe connector.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a hand-held fire spray gun which is easy to adjust, a spray gun switch consisting of a ball valve and an atomizing assembly is arranged on the spray gun body which is composed of a flow stabilizing tube, a gripping piece consisting of a fixed grip and a rotating grip is arranged on the side thereof, a spraying piece consisting of a flowering assembly and a nozzle is arranged at the end away from the gripping piece, and a flowering transmission assembly connecting the rotating grip and the flowering assembly is arranged inside thereof; wherein a guide fan for changing the tangential velocity of the water flow is arranged in the atomizing assembly, and when the angle between the water flow and the guide blades of the guide fan is 90 degrees, the water flow sprayed from the nozzle can be in an atomized state; the flowering assembly consists of an adjusting outer layer and an adjusting inner layer which are provided with an outlet hole, and the adjusting inner layer can be rotated by rotating the rotating handle through the flowering transmission assembly, so that the water flow is sprayed from the outlet hole where the adjusting outer layer and the adjusting inner layer gradually overlap, forming an umbrella-shaped flowering water flow.

[0016] The utility model has a simple structure and is easy to operate. After turning on the spray gun switch, the water spray forms such as direct current water column, atomized water flow and blooming water flow can be selected by adjusting the atomization knob and rotating the handle respectively to cope with different fire extinguishing scenarios such as different range requirements, different coverage areas and different combustibles, thereby improving the practicability of the fire spray gun and meeting the requirements of flexible and rapid fire extinguishing. At the same time, the auxiliary handle and the auxiliary handle wrapped with an anti-slip layer make it easier for the user to hold the fire spray gun to avoid falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a handheld fire spray gun that is easy to adjust in the utility model;

[0018] Figure 2 It is a structural schematic diagram of the flowering component of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the spray gun of the utility model when the switch is turned on.

[0020] In the figure: 1-flow stabilizing outer tube, 2-flow stabilizing inner tube, 3-spring assembly, 4-main transmission rod, 5-driving spur bevel gear, 6-driven spur bevel gear, 7-driving internal gear, 8-driven internal gear, 9-flowering assembly, 10-adjusting outer layer, 11-adjusting inner layer, 12-flow outlet, 13-nozzle, 14-cover body, 15-metal rod, 16-spring interlayer, 17-fixed handle, 18-auxiliary handle, 19-rotating handle, 20-anti-slip layer, 21-valve seat, 22-spherical valve core, 23-ball valve knob, 24-valve stem, 25-vertical placement rod, 26-guide fan, 27-atomizing knob, 28-water pipe connector, 29-sealing ring, 30-threaded structure. DETAILED DESCRIPTION

[0021] To further describe the utility model in detail, the following is an explanation with reference to the accompanying drawings. It is particularly pointed out that the embodiments described below are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 The present embodiment provides a hand-held fire-fighting spray gun that is easy to adjust, including a spray gun body, a spray piece, a gripping piece, a spray gun switch and a water pipe connecting piece 28. The spray piece and the water pipe connecting piece 28 are respectively arranged at both ends of the spray gun body, the gripping piece is arranged on the side of the spray gun body, and the spray gun switch is arranged on the spray gun body.

[0023] The spray gun body is a flow stabilizer tube. In the present embodiment, the flow stabilizer tube is a double-layer structure, including an outer flow stabilizer tube 1, an inner flow stabilizer tube 2 and a flow stabilizer connected between the outer flow stabilizer tube 1 and the inner flow stabilizer tube 2. The flow stabilizer is a symmetrically distributed spring assembly 3, which is used to stabilize the water flow entering the flow stabilizer tube and reduce the lateral impact force of the water flow. A flowering transmission assembly is arranged in the inner flow stabilizer tube 2, and the flowering transmission assembly includes a main transmission rod 4, a first transmission gear group connecting the rotating handle 19 and the main transmission rod 4, and a second transmission gear group connecting the main transmission rod 4 and the flowering assembly 9. In the present embodiment, the first transmission gear group is a group of spur bevel gear groups, and the second transmission gear is a group of internal gear groups, that is, a driven spur bevel gear 6 is arranged at one end of the main transmission rod 4 close to the rotating handle 19, and an active internal gear 7 is arranged at one end close to the flowering assembly 9.

[0024] The water pipe connector 28 is provided with multiple layers of sealing rings 29, and a threaded structure 30 or a snap-on structure is provided inside the opening at one end away from the spray gun body. In this embodiment, the opening at one end of the water pipe connector 28 away from the spray gun body is a threaded structure 30 and is provided with three layers of sealing rings 29 to ensure stability and sealing when connected to the fire water pipe.

[0025] See also Figure 1 and Figure 2 , the spraying part includes a blooming component 9 and a nozzle 13. The blooming component 9 is a double-layer conical tube, including an adjusting outer layer 10 and an adjusting inner layer 11, and the adjusting outer layer 10 and the adjusting inner layer 11 are symmetrically provided with multiple groups of outflow holes 12, wherein the adjusting outer layer 10 is fixedly connected between the steady flow outer tube 1 and the nozzle 13, and the adjusting inner layer 11 is rotatably arranged inside the adjusting outer layer 10, and the inner side of one end thereof close to the spray gun body is provided with a driven inner gear 8 matching the driving inner gear 7 on the main transmission rod 4, and the adjusting inner layer 11 can be driven to rotate by the main transmission rod 4, and the adjusting inner layer 11 is rotated so that the outflow holes 12 on the adjusting outer layer 10 and the adjusting inner layer 11 gradually overlap from the staggered distribution, and the water flow is scattered from the outflow hole 12 to form an umbrella-shaped blooming water flow, which can be used to separate the fire from the firefighters at the fire scene to protect the personal safety of the firefighters. The nozzle 13 is a cylindrical tube to ensure that when the water flow is sprayed out, the nozzle 13 will not shrink excessively under the impact of high-intensity water flow, thereby extending the service life of the nozzle 13; a cover body 14 is arranged on the outer side of the end of the nozzle 13 away from the regulating outer layer 10. In this embodiment, one end of the cover body 14 is rotatably fixed above the nozzle 13 through a metal rod 15, and a spring interlayer 16 is arranged to reduce the impact force of the water backflow when the nozzle 13 is closed when the blooming water flow is sprayed out.

[0026] The gripping member includes a fixed grip 17, a rotating grip 19 and an auxiliary grip 18. The fixed grip 17 and the auxiliary grip 18 can be fixed on the same side of the spray gun body or on different sides of the spray gun body, and the outer layers of the fixed grip 17 and the auxiliary grip 18 are wrapped with an anti-slip layer 20 to ensure that the handheld fire-fighting spray gun is stable and does not fall out of the hand during use; the rotating grip 19 is arranged in the fixed grip 17, and the driving spur gear 5 matching the driven spur gear 6 on the main transmission rod 4 is arranged at one end of the rotating grip 19 inside the flow stabilizing inner tube 2, so that the rotation of the regulating inner layer 11 can be controlled through the main transmission rod 4 by rotating the rotating grip 19.

[0027] See also Figure 1 and Figure 3The spray gun switch includes a ball valve and an atomizing assembly. The ball valve includes a valve seat 21, a spherical valve core 22, a ball valve knob 23 and a valve stem 24. The valve seat 21 is arranged inside the flow-stabilizing tube. The spherical valve core 22 is provided with a horizontal channel and can be rotatably arranged inside the valve seat 21. The valve stem 24 is connected between the spherical valve core 22 and the ball valve knob 23. The ball valve knob 23 is arranged on the outer surface of the flow-stabilizing tube. The horizontal channel of the spherical valve core 22 can be changed by rotating the ball valve knob 23 to control the size of the spray water flow or switch the handheld fire-fighting spray gun. The atomization assembly is arranged on the ball valve, and includes a vertical mounting rod 25 and a guide fan 26. The vertical mounting rod 25 is rotatably arranged on the horizontal channel, and one end of the vertical mounting rod 25 extends to the ball valve knob 23 where an atomization knob 27 is arranged, which is used to control the rotation of the vertical mounting rod 25 to change the angle between the guide fan 26 and the water flow direction; the guide fan 26 is rotatably arranged on the vertical mounting rod 25, and there are at least 2 guide blades, and the tail end of the guide blade is bent with a certain arc, which is used to change the internal flow structure of the water flow, so that the water flow is atomized under the action of the air resistance after the nozzle 13 is sprayed out.

[0028] In this embodiment, when the handheld fire spray gun is in the initial state, the spray gun switch is in the closed state. At this time, the horizontal channel direction and the guide vanes are perpendicular to the water flow direction through the flow-stabilizing inner tube 2. The regulating outer layer 10 and the regulating inner layer 11 in the flowering component 9 are in a staggered distribution, and the cover body 14 is closed on the outside of the nozzle 13. When in use, the user holds the handheld fire spray gun by the fixed handle 17 and the auxiliary handle 18. After rotating the cover body 14 to open it, the ball valve knob 23 is rotated to make the water flow direction parallel to the horizontal channel direction and the guide vanes. The water flow is concentrated and sprayed out from the nozzle 13 to form a relatively concentrated straight-flow water column. If the cover body 14 is opened, the ball valve knob 23 is rotated while the atomizing knob 27 is rotated to make the water flow direction parallel to the horizontal channel direction but perpendicular to the guide vanes. At this time, the water flow directly impacts the guide vanes, and the water flow passes through the guide vanes in a circular direction. Tangential speed, forming an atomized water flow after leaving the nozzle 13; if the cover body 14 is kept closed, the rotating handle 19 is rotated while rotating the ball valve knob 23, the first transmission gear set drives the main transmission rod 4 to rotate, and the main transmission rod 4 drives the second transmission gear set to rotate, so that the outlet holes 12 of the regulating outer layer 10 and the regulating inner layer 11 gradually overlap, and the water flow is dispersed and sprayed out from the outlet holes 12 to form an umbrella-shaped blooming water flow, and the diffusion state of the umbrella-shaped blooming water flow can be changed by changing the degree of the outlet holes 12 of the regulating outer layer 10 and the regulating inner layer 11.

[0029] In this embodiment, the above is only an example and is not intended to limit the scope of protection of this application.

[0030] A hand-held fire-fighting spray gun which is easy to adjust, wherein a spray gun switch consisting of a ball valve and an atomizing assembly is arranged on a spray gun body consisting of a flow-stabilizing tube, a gripping piece consisting of a fixed gripping piece and a rotating gripping piece is arranged on its side, a spraying piece consisting of a blooming assembly and a nozzle is arranged at the end away from the gripping piece, and a blooming transmission assembly connecting the rotating gripping piece and the blooming assembly is arranged inside the spray gun; wherein a guide fan for changing the tangential velocity of the water flow is arranged in the atomizing assembly, and when the angle between the water flow and the guide blades of the guide fan is 90 degrees, the water flow sprayed from the nozzle can be in an atomized state; the blooming assembly consists of an adjusting outer layer and an adjusting inner layer provided with an outlet hole, and the adjusting inner layer can be rotated by rotating the rotating gripping piece through the blooming transmission assembly, so that the water flow is sprayed from the outlet hole where the adjusting outer layer and the adjusting inner layer gradually overlap, forming an umbrella-shaped blooming water flow.

[0031] The utility model has a simple structure and is easy to operate. After turning on the spray gun switch, the water spray forms such as direct current water column, atomized water flow and blooming water flow can be selected by adjusting the atomization knob and rotating the handle respectively to cope with different fire extinguishing scenarios such as different range requirements, different coverage areas and different combustibles, thereby improving the practicability of the fire spray gun and meeting the requirements of flexible and rapid fire extinguishing. At the same time, the auxiliary handle and the auxiliary handle wrapped with an anti-slip layer make it easier for the user to hold the fire spray gun to avoid falling off.

[0032] The embodiments disclosed above are only for the purpose of describing and introducing the present invention in detail, and cannot be used to limit the scope of the present invention. Therefore, simple improvements and changes made according to the scope of application of the claims of the present invention still fall within the scope of protection of the present invention.

[0033] The protection scope of the present invention shall be based on the limited scope. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A hand-held fire spray gun that is easy to adjust, characterized in that: It includes a spray gun body, a spraying part, a holding part and a spray gun switch; The spraying member is arranged at one end of the spray gun body, and comprises a blooming component connected to one end of the spray gun body and a nozzle connected to the blooming component; The gripping member is arranged on the side of the spray gun body, and includes a fixed grip fixed on the side of the spray gun body and a rotating grip arranged in the fixed grip; The spray gun switch is arranged on the spray gun body, and comprises a ball valve and an atomizing assembly arranged on the ball valve; The spray gun body is a flow stabilizing tube, and a flowering transmission component is arranged in the flow stabilizing tube. One end of the flowering transmission component is connected to the rotating handle, and the other end is connected to the flowering component.

2. The adjustable handheld fire spray gun according to claim 1, characterized in that: The flowering component is a double-layer conical tube, including an adjusting outer layer fixedly connected between the spray gun body and the nozzle and an adjusting inner layer rotatable within the adjusting outer layer. The adjusting inner layer is connected to the flowering transmission component at one end close to the spray gun body, and both the adjusting outer layer and the adjusting inner layer are provided with outflow holes.

3. The adjustable handheld fire spray gun according to claim 2, characterized in that: The flowering transmission assembly includes a main transmission rod, a first transmission gear set connecting the rotating handle and the main transmission rod, and a second transmission gear set connecting the main transmission rod and the flowering assembly.

4. The adjustable handheld fire spray gun according to claim 1, characterized in that: The ball valve includes a valve seat arranged in the flow stabilizing tube, a spherical valve core rotatably arranged in the valve seat, a ball valve knob arranged on the outer surface of the flow stabilizing tube and a valve stem connecting the spherical valve core and the ball valve knob, and a horizontal channel is penetrated by the spherical valve core.

5. The adjustable handheld fire spray gun according to claim 4, characterized in that: The atomization assembly comprises a rotatable vertical placement rod arranged on the horizontal channel and a rotatable air guide fan arranged on the vertical placement rod. An atomization knob is arranged at one end of the vertical placement rod away from the air guide fan.

6. The adjustable handheld fire spray gun according to claim 5, characterized in that: The guide fan has at least two guide blades, and the tail ends of the guide blades are curved with a certain arc.

7. The adjustable handheld fire spray gun according to claim 1, characterized in that: An openable and closable cover is arranged on the outer side of one end of the nozzle away from the flowering component.

8. The adjustable handheld fire spray gun according to claim 1, characterized in that: The flow stabilizing tube is a double-layer structure, comprising an outer flow stabilizing tube, an inner flow stabilizing tube and a flow stabilizing member connected between the outer flow stabilizing tube and the inner flow stabilizing tube.

9. The easily adjustable handheld fire spray gun according to claim 1, characterized in that: The holding piece also includes an auxiliary handle, and the fixed handle and the auxiliary handle are wrapped with an anti-slip layer.

10. The easily adjustable handheld fire spray gun according to claim 1, characterized in that: A water pipe connector is arranged at one end of the flow stabilizing tube away from the nozzle member, and a multi-layer sealing ring is arranged inside the water pipe connector.

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