Hand-held foam gun device

Abstract

The utility model relates to the technical field of fire extinguishing devices, in particular to a handheld foam gun device which comprises a gun barrel, a spray head is mounted at one end of the gun barrel and used for changing mixed liquid in the gun barrel into spray foam to be sprayed out, a water hose connector is mounted at the other end of the gun barrel, and the water hose connector is communicated with a fire hose; a liquid conveying inner core part is fixedly mounted in the gun barrel, so that water conveyed to the lower part of the gun barrel firstly enters the liquid conveying inner core part and then is conveyed to the upper part of the gun barrel from the liquid conveying inner core part; the side wall of the liquid conveying inner core piece is communicated with a liquid suction pipe steel wire hose, and the side, away from the liquid conveying inner core piece, of the liquid suction pipe steel wire hose is arranged in a foam liquid barrel containing foam. When the device is used for extinguishing fire, foam can be sprayed out, so that the fire extinguishing effect is better.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing device technology, and in particular to a handheld foam gun device. Background Technology

[0002] A fire is a disaster caused by combustion that is out of control in time or space. The new standard defines a fire as combustion that is out of control in time or space.

[0003] Among various disasters, fire is one of the most frequent and widespread major disasters threatening public safety and social development.

[0004] Most existing fire extinguishing sprayers extinguish fires by spraying water. However, in some special fire situations, it is difficult to achieve the desired fire extinguishing effect by spraying water alone.

[0005] Therefore, it is necessary to provide a handheld foam gun device that can spray foam during fire extinguishing, thereby improving the fire extinguishing effect. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a hand-held foam gun device that can spray foam during fire extinguishing, thereby making the fire extinguishing effect better.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a handheld foam gun device, comprising:

[0008] The gun barrel has a spray head installed at one end for spraying the mixed liquid inside the gun barrel into a spray foam. The other end of the gun barrel is equipped with a fire hose connector, which is connected to a fire hose.

[0009] A liquid conveying core is fixedly installed inside the barrel, which allows water delivered to the lower part of the barrel to first enter the liquid conveying core and then be conveyed from the liquid conveying core to the upper part of the barrel.

[0010] The side wall of the liquid delivery inner core is connected to a suction tube steel wire hose. The side of the suction tube steel wire hose away from the liquid delivery inner core is placed in a foam liquid tank containing foam. This allows the rapidly flowing water to be delivered from the lower part of the gun barrel to the liquid delivery inner core and then to the upper part of the gun barrel. The suction tube steel wire hose connected to the side wall generates negative pressure, which transfers the foam in the foam liquid tank to the gun barrel to mix with the water and is discharged from the spray head to form foam for fire extinguishing.

[0011] Furthermore, the liquid delivery inner core includes a vertical tube and an inclined tube installed on the vertical tube. The inclined tube is connected to the vertical tube, and the extension direction of the inclined tube is close to the water inlet of the vertical tube. When high-speed water enters the vertical tube, the inclined tube generates negative pressure, and the liquid at the lower part of the gun barrel is delivered into the vertical tube and then from the vertical tube to the upper part of the gun barrel. The inclined tube is connected to the suction tube steel wire hose.

[0012] Furthermore, the inclined tube passes through the outer wall of the gun barrel and is sealed to the gun barrel. The inclined tube is connected to a quick-connect plug, and a pagoda connector is connected to the side of the quick-connect plug away from the inclined tube. A suction tube and steel wire hose are connected to the pagoda connector.

[0013] Furthermore, the side of the suction tube steel wire hose away from the pagoda connector is connected to a suction tube stainless steel tube, which is installed inside the foam liquid tank, with the bottom end of the suction tube stainless steel tube placed at the bottom of the foam liquid tank.

[0014] Furthermore, the stainless steel suction tube is installed together with the steel wire hose of the suction tube by means of a clamp.

[0015] Furthermore, a nameplate is mounted on the barrel.

[0016] Compared with the prior art, the beneficial effects of this utility model include:

[0017] The device can be connected to an external fire-fighting water source, allowing the fire-fighting water to be used in a foam-like form for fire extinguishing operations;

[0018] The device is simple and easy to operate; personnel can carry out firefighting operations by holding the gun barrel. The device is also easy to maintain and install. Attached Figure Description

[0019] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0020] Figure 1 This is a schematic diagram of the structure of the device of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the liquid transfer core component of the device of this utility model.

[0022] The following are labeled in the diagram: 1. Spray head; 2. Gun barrel; 3. Nameplate; 4. Liquid transfer inner core; 41. Vertical pipe; 42. Inclined pipe; 5. Water hose interface; 6. Quick connector; 7. Pagoda connector; 8. Suction tube steel wire hose; 9. Suction tube stainless steel pipe; 10. Clamp; 11. Foam liquid tank. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Example:

[0025] Key reference Figure 1-2 The device mainly includes a spray head 1, a gun barrel 2, a liquid delivery inner core 4, a water hose interface 5, and a foam liquid tank 11.

[0026] A spray head 1 is fixedly installed on the top of the barrel 2, and the water flowing from the barrel 2 to the spray head 1 can be turned into a spray.

[0027] A fire hose connector 5 is installed at the bottom of the gun barrel 2, and a fire hose is connected to the fire hose connector 5.

[0028] A liquid delivery core 4 is fixedly installed on the inner wall of the barrel 2 near the bottom. The liquid delivery core 4 includes a vertical pipe 41 and an inclined pipe 42 communicating with the side wall of the vertical pipe 41. The vertical pipe 41 is fitted against the inner wall of the barrel 2 and is arranged parallel to the barrel 2. The inclined pipe 42 is inclined, and its inclined extension direction is towards the water inlet of the vertical pipe 41, so that when the vertical pipe 41 is filled with rapidly flowing water, the inclined pipe 42 generates negative pressure. The inclined pipe 42 passes through the inner wall of the barrel 2 and is sealed to the barrel 2. That is, water from the bottom of the barrel 2 will only flow out from the vertical pipe 41 and flow to the upper part of the barrel 2.

[0029] A quick-connect plug 6 is installed on the part of the inclined tube 42 that is placed on the outer wall of the barrel 2, and a pagoda connector 7 is installed on the side of the quick-connect plug 6 away from the inclined tube 42.

[0030] The side of the pagoda connector 7 away from the quick-connect plug 6 is connected to a suction tube steel wire hose 8, and the side of the suction tube steel wire hose 8 away from the pagoda connector 7 is connected to a suction tube stainless steel tube 9. The suction tube stainless steel tube 9 and the suction tube steel wire hose 8 are fixed together by a clamp 10. The bottom end of the suction tube stainless steel tube 9 is placed at the bottom of the foam liquid tank 11.

[0031] A nameplate 3 is mounted on the barrel 2.

[0032] The foam liquid tank 11 has a water inlet at the top.

[0033] In practice, the foam liquid tank 11 is filled with foam liquid. Then, the fire hose connector 5 is connected to an external fire hose. At this time, fire water enters from the bottom of the nozzle 2 into the riser pipe 41, and then enters the upper part of the nozzle 2 from the upper part of the riser pipe 41. At this time, the inclined pipe 42 generates negative pressure, which draws the foam liquid from the foam liquid tank 11 to the upper part of the nozzle 2, where the foam liquid mixes with the fire water in the upper part of the nozzle 2. The mixture then enters the spray head 1, which atomizes the mixture into a spray. When the mixture is sprayed out through the spray head 1, it immediately diffuses and atomizes, creating negative pressure again, drawing in a large amount of air to mix with the mixture, producing air foam and resulting in a better fire extinguishing effect.

[0034] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A hand-held foam gun device, characterized by, The application relates to a fire extinguishing gun, which comprises a gun barrel (2), one end of the gun barrel (2) being provided with a spray head (1) for spraying the mixed liquid in the gun barrel (2) as foam, the other end of the gun barrel (2) being provided with a water hose connector (5) communicated with a fire hose, a liquid conveying inner core (4) being fixedly arranged in the gun barrel (2) for making the water conveyed to the lower part of the gun barrel (2) firstly enter the liquid conveying inner core (4) and then be conveyed to the upper part of the gun barrel (2) from the liquid conveying inner core (4), a liquid suction steel wire hose (8) being communicated with the lateral wall of the liquid conveying inner core (4), the liquid suction steel wire hose (8) being arranged in a foam liquid barrel (11) containing foam far from the liquid conveying inner core (4), and when the water rapidly flows from the lower part of the gun barrel (2) to the liquid conveying inner core (4) and then to the upper part of the gun barrel (2), the liquid suction steel wire hose (8) communicated with the lateral wall generates negative pressure to convey the foam in the foam liquid barrel (11) to the gun barrel (2) to mix with the water and then be discharged from the spray head (1) to form foam for fire extinguishing.

2. A hand held foam gun device according to claim 1, wherein, The liquid conveying inner core (4) comprises a vertical pipe (41) and an inclined pipe (42) arranged on the vertical pipe (41), the inclined pipe (42) being communicated with the vertical pipe (41), the extending direction of the inclined pipe (42) being close to the water inlet of the vertical pipe (41), and when the water enters the vertical pipe (41) at high speed, the inclined pipe (42) generates negative pressure, the liquid in the lower part of the gun barrel (2) is conveyed to the vertical pipe (41) and then to the upper part of the gun barrel (2), and the inclined pipe (42) is communicated with the liquid suction steel wire hose (8).

3. A hand held foam gun device according to claim 2, wherein, The inclined pipe (42) penetrates the outer wall of the gun barrel (2) and is sealingly connected with the gun barrel (2), the inclined pipe (42) is communicated with a quick connector (6), the quick connector (6) is communicated with a tower connector (7) far from the inclined pipe (42), and the tower connector (7) is communicated with the liquid suction steel wire hose (8).

4. A hand held foam gun device according to claim 3, wherein, The liquid suction steel wire hose (8) is communicated with a liquid suction stainless steel pipe (9) far from the tower connector (7), the liquid suction stainless steel pipe (9) is arranged in the foam liquid barrel (11), and the bottom end of the liquid suction stainless steel pipe (9) is arranged at the inner bottom of the foam liquid barrel (11).

5. A hand held foam gun device according to claim 4, wherein, The liquid suction stainless steel pipe (9) is arranged together with the liquid suction steel wire hose (8) through a clamp (10).

6. A hand held foam gun device according to claim 1, wherein, The gun barrel (2) is provided with a nameplate (3).

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