Fire extinguishing device

Abstract

The utility model relates to the field of fire-fighting devices, in particular to a fire-fighting fire extinguishing device which structurally comprises a spray head, the spray head comprises a cleaning shell and a spray plate, the spray plate is nested in the cleaning shell and is connected with a port of a gun body through the cleaning shell, and water flow is additionally input into the improved device through a one-way valve, so that the waste of water resources is reduced; a front panel and a rear panel of a spraying plate are cleaned through a jet flow ring and a front cover plate, corrosion caused by foam residues is avoided, use of follow-up equipment is not affected, and due to the fact that the jet flow ring is installed in a shell and soaked in foam for a long time, corrosion is inevitably caused, and in order to facilitate disassembly of the jet flow ring, the jet flow ring is replaced. The jet flow ring is composed of a first arc body and a second arc body, an annular cavity is formed through nesting, limiting is conducted through a limiting column at the top, the limiting column can prevent the first arc body and the second arc body from being dislocated, flow guiding can be conducted, and liquid in a flow guiding groove enters the jet flow ring.

Description

Technical Field

[0001] The utility model relates to a fire extinguishing device, in particular to a fire extinguishing device. Background Art

[0002] As a key piece of firefighting equipment, firefighting foam guns offer unique applications and significant advantages, particularly when responding to specific fire types. However, when considering their coordinated operation with dry powder fire extinguishing systems, a crucial follow-up step is ensuring the timely cleaning of the dry powder gun cavity. This is because residual dry powder, if not promptly disposed of, can cause corrosion and clogging of the equipment, impacting its subsequent effectiveness and reliability.

[0003] The current standard practice for firefighting foam gun maintenance is to flush the gun internally by connecting it to a fire hose to remove impurities and residue from the flow path. While this method can achieve a certain degree of cleaning, it lacks convenience. Not only does it consume a large amount of water, but the flushing process often fails to fully reach every tiny corner, resulting in limited cleaning effectiveness. Utility Model Content

[0004] The utility model provides a fire extinguishing device, which can effectively solve the above problems.

[0005] The utility model is implemented as follows: a fire extinguishing device, the structure of which includes: a gun body and a first handle, a second handle is also installed on the surface of the gun body, a pipe interface is installed on one side of the gun body, and a spray head is installed on the side opposite to the pipe interface, the spray head includes a cleaning shell and a spray plate, the spray plate is nested in the cleaning shell and connected to the port of the gun body through the cleaning shell;

[0006] The cleaning shell includes a shell, a first limiting groove is provided inside the shell, and the first limiting groove is nested with the jet ring, a groove body is provided between the port of the shell and the first limiting groove to cooperate with the spray plate, the port of the shell is provided with a front cover plate, the inner ring surface of the front cover plate is provided with multiple first jet ports, the first jet ports are opposite to the nozzles on the surface of the spray plate, a guide groove is also provided in the middle of the shell, and a one-way valve is provided at the inlet of the guide groove, and a confluence groove is provided inside the front cover plate to connect the first jet port and the guide groove.

[0007] As a further improvement, the jet ring includes a first arc body and a second arc body. The first arc body and the second arc body are nested through a second limiting groove opened in the second arc body to form a ring body. Second jet outlets are provided on the surfaces of the first arc body and the second arc body. The second arc body and the first arc body are limited by a limiting column.

[0008] As a further improvement, the first limiting groove is a two-section structure, one side cooperates with the second arc body, and the other side is connected to the first arc body.

[0009] As a further improvement, the second jet port is located on the inclined surface between the second arc body and the first arc body, opposite to the back of the spray plate.

[0010] As a further improvement, the one-way valve interface adopts a snap-on quick interface.

[0011] As a further improvement, the limiting column includes a bolt formed by a rotating part and a locking part, a middle groove is provided in the middle of the locking part, and an inner column is provided in the middle of the middle groove, and a side groove is provided on the side wall of the locking part, which is connected to the middle groove cavity.

[0012] As a further improvement, the surface of the inner column opposite to the one-way valve is a plane, and the surface opposite to the first jet outlet is an arc surface.

[0013] As a further improvement, the thread of the locking portion is located near the connection of the rotating portion, and the locking portion is engaged with the housing through the thread.

[0014] The beneficial effects of the utility model are as follows: the improved device inputs another water flow through the one-way valve, reducing the waste of water resources, and diverts the water through the guide groove and the limit column to clean the front and rear panels of the spray plate through the spray ring and the front cover, avoiding corrosion caused by foam residue and affecting the use of subsequent equipment.

[0015] And because the jet ring is installed inside the shell and is immersed in foam for a long time, corrosion is inevitable. In order to facilitate its disassembly, the jet ring is composed of a first arc body and a second arc body, which are nested to form a ring cavity and are limited by a limiting column on the top. The limiting column can not only prevent the first arc body and the second arc body from being misaligned, but also can guide the liquid in the guide groove to enter the interior of the jet ring. Once corrosion occurs, you only need to disassemble and replace the limiting column and the first arc body and the second arc body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 The utility model is a structural schematic diagram of a fire extinguishing device.

[0018] Figure 2 This is a schematic cross-sectional view of the sprinkler head of the present invention.

[0019] Figure 3 It is a schematic cross-sectional structural diagram of the cleaning shell of the present invention.

[0020] Figure 4 This is a schematic structural diagram of the jet ring of the utility model.

[0021] Figure 5 This is a schematic diagram of the first limiting groove structure of the utility model.

[0022] Figure 6 This is a schematic structural diagram of the limit column of the utility model.

[0023] Figure 7 This is a schematic diagram of the installation structure of the inner column of the utility model.

[0024] The reference numerals are as follows:

[0025] 1. Sprinkler head; 2. Gun body; 3. First handle; 4. Second handle; 5. Pipe connection;

[0026] 11. Clean the shell; 12. Spray plate;

[0027] 111. Housing; 112. Guide groove; 113. One-way valve; 114. Front cover; 115. First jet port; 116. Converging groove; 117. First limiting groove; 118. Jet ring;

[0028] 181. First arc body; 182. Limiting column; 183. Second arc body; 184. Second jet outlet; 185. Second limiting groove;

[0029] 81. Rotating portion; 82. Locking portion; 83. Side groove; 84. Inner column; 85. Middle groove. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the present invention.

[0031] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically specified.

[0032] The conventional practice is to flush the interior of the flow channel by connecting a fire hose to remove impurities and residues. While this method can achieve the cleaning purpose to a certain extent, it lacks convenience. Not only does it consume a large amount of water resources, but the flushing process often fails to fully cover all tiny corners, resulting in limited cleaning results. Therefore, to address the above issues, this case proposes the following technical solutions:

[0033] Reference Figures 1 to 7 As shown, a fire extinguishing device includes: a gun body 2 and a first handle 3. A second handle 4 is also installed on the surface of the gun body 2. A pipe interface 5 is installed on one side of the gun body 2, and a spray head 1 is installed on the side opposite to the pipe interface 5. The spray head 1 includes a cleaning shell 11 and a spray plate 12. The spray plate 12 is nested in the cleaning shell 11 and connected to the port of the gun body 2 through the cleaning shell 11.

[0034] The cleaning shell 11 includes a shell 111, and a first limiting groove 117 is provided inside the shell 111, and the first limiting groove 117 is nested with the jet ring 118. A groove body is provided between the port of the shell 111 and the first limiting groove 117 to cooperate with the spray plate 12. The port of the shell 111 is provided with a front cover plate 114, and the inner ring surface of the front cover plate 114 is provided with multiple first jet ports 115. The first jet ports 115 are opposite to the nozzles on the surface of the spray plate 12. A guide groove 112 is also provided in the middle of the shell 111, and a one-way valve 113 is provided at the inlet of the guide groove 112. A confluence groove 116 is provided inside the front cover plate 114 to connect the first jet port 115 and the guide groove 112.

[0035] In this embodiment, the fire extinguishing device structure includes a gun body 2, a sprinkler head 1 is provided at the front end of the gun body 2, and the rear end is connected to the fire pipe through a pipe interface 5. A first handle 3 for holding and a second handle 4 for auxiliary holding are provided at the bottom of the gun body 2.

[0036] The front spray plate 12 is used to spray foam, and there is a risk of corrosion and clogging, so it needs to be cleaned in time after use. To this end, this device optimizes the cleaning shell 11:

[0037] The cleaning shell 11 is provided with a shell 111, which is connected to the gun body 2 through the shell 111. The wall of the shell 111 is provided with a guide groove 112 running through it. One side of the guide groove 112 is connected to the one-way valve 113 and the other side is connected to the confluence groove 116 of the front cover 114, and a slot hole is provided in the middle to cooperate with the limit column 182. The limit column 182 can limit the position between the first arc body 181 and the second arc body 183 through the slot hole of the shell 111.

[0038] A double-width first limiting groove 117 is provided inside the specific shell 111, and the jet ring 118 is connected through the first limiting groove 117. One side of the first limiting groove 117 is nested with the second arc body 183, and the narrow side is connected to the first arc body 181. Through the double-width setting, the second arc body 183 can form a limiting groove for the second arc body 183 due to the difference in width on both sides when embedded. During installation, the first arc body 181 on the other side is embedded in the second limiting groove 185 of the second arc body 183. When installed in the first limiting groove 117, it is extended to form an annular structure, and is limited by the limiting column 182 on the top. The first arc body 181 and the second arc body 183 are combined to form an annular tube, which is convenient for cleaning by aligning the second jet port 184 with the structure at the rear end of the spray plate 12.

[0039] A confluence groove 116 is provided inside the front cover plate 114 at the front end to cooperate with the first jet port 115 to clean the front panel of the spray plate 12. The water source input of the guide groove 112 for front and rear spraying is injected through the one-way valve 113, which can avoid wasting a lot of water resources.

[0040] The limiting column 182 not only plays a limiting role, but also plays a guiding role.

[0041] The specific limiting column 182 includes a bolt formed by a rotating part 81 and a locking part 82. A hollow middle groove 85 is set in the middle of the locking part 82, and an inner column 84 is installed in the middle groove 85. The water flow is transported to the cavity of the first arc body 181 and the second arc body 183 through the inner column 84.

[0042] The annular surface of the locking portion 82 is provided with a side groove 83 , and the side groove 83 blocks the fluid so that the water flow can be dispersed more into the cavities of the second arc body 183 and the first arc body 181 to increase the pressure.

[0043] The improved device inputs another water flow through the one-way valve 113 to reduce the waste of water resources, and diverts the water through the guide groove 112 and the limit column 182 to clean the front and rear panels of the spray plate 12 through the spray ring 118 and the front cover 114 to avoid corrosion caused by foam residue and affect the use of subsequent equipment.

[0044] And because the jet ring 118 is installed inside the shell 111 and is immersed in foam for a long time, corrosion is inevitable. In order to facilitate its disassembly, the jet ring 118 is composed of a first arc body 181 and a second arc body 183, which are nested to form an annular cavity and are limited by a limiting column 182 at the top. The limiting column 182 can not only prevent the first arc body 181 and the second arc body 183 from being misaligned, but also can guide the liquid in the guide groove 112 to enter the interior of the jet ring 118. Once corrosion occurs, it is only necessary to disassemble and replace the limiting column 182 and the first arc body 181 and the second arc body 183.

[0045] The above only describes the basic principles and preferred implementations of the present invention. Those skilled in the art may make many changes and improvements based on the above description, and these changes and improvements should fall within the scope of protection of the present invention.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fire extinguishing device, comprising: A gun body (2) and a first handle (3), a second handle (4) is also provided on the surface of the gun body (2), a pipe interface (5) is provided on one side of the gun body (2), and a spray head (1) is provided on the side opposite to the pipe interface (5), characterized in that: The spray head (1) comprises a cleaning shell (11) and a spray plate (12), wherein the spray plate (12) is nested inside the cleaning shell (11) and connected to a port of the gun body (2) via the cleaning shell (11); The cleaning shell (11) comprises a shell (111), a first limiting groove (117) is provided inside the shell (111), and the first limiting groove (117) is nested with the jet ring (118), a groove body is provided between the port of the shell (111) and the first limiting groove (117) to cooperate with the spray plate (12), the port of the shell (111) is provided with a front cover (114), the inner ring surface of the front cover (114) is provided with a plurality of first jet ports (115), the first jet ports (115) are opposite to the nozzles on the surface of the spray plate (12), the middle part of the shell (111) is further provided with a guide groove (112), and a one-way valve (113) is provided at the inlet of the guide groove (112), and a confluence groove (116) is provided inside the front cover (114) to connect the first jet ports (115) and the guide groove (112).

2. A fire extinguishing device according to claim 1, characterized in that: The jet ring (118) includes a first arc body (181) and a second arc body (183), wherein the first arc body (181) and the second arc body (183) are nested with each other through a second limiting groove (185) provided in the second arc body (183) to form a ring body, and second jet ports (184) are provided on the surfaces of the first arc body (181) and the second arc body (183), and a limiting column (182) is passed through between the second arc body (183) and the first arc body (181) for limiting.

3. A fire extinguishing device according to claim 1, characterized in that: The first limiting groove (117) is a two-section structure, one side of which cooperates with the second arc body (183) and the other side of which is connected to the first arc body (181).

4. A fire extinguishing device according to claim 2, characterized in that: The second jet outlet (184) is located on the inclined surface between the second arc body (183) and the first arc body (181), opposite to the back of the spray plate (12).

5. A fire extinguishing device according to claim 1, characterized in that: The one-way valve (113) interface adopts a snap-on quick interface.

6. A fire extinguishing device according to claim 2, characterized in that: The limiting column (182) includes a bolt formed by a rotating portion (81) and a locking portion (82), a middle groove (85) is provided in the middle of the locking portion (82), and an inner column (84) is provided in the middle of the middle groove (85), and a side groove (83) is provided on the side wall of the locking portion (82), and the side groove (83) is communicated with the cavity of the middle groove (85).

7. A fire extinguishing device according to claim 6, characterized in that: The surface of the inner column (84) facing the one-way valve (113) is a plane, and the surface facing the first jet port (115) is an arc surface.

8. A fire extinguishing device according to claim 6, characterized in that: The thread of the locking portion (82) is located near the connection of the rotating portion (81), and the locking portion (82) is engaged with the housing (111) via the thread.

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