Miniature handheld fire extinguisher

Abstract

The utility model discloses a miniature handheld fire extinguisher which comprises a tank body internally provided with a fire extinguishing agent, a valve assembly is mounted at an opening in the top end of the tank body, a hose is fixedly connected to a discharge port of the valve assembly, a spray head is fixedly connected to one end, far away from the valve assembly, of the hose in a sleeving manner, and a connecting plate is fixedly connected to the bottom end of the spray head; a through hole is formed in the connecting plate in a penetrating mode, and a connecting pipe used for communicating the through hole with the hose is fixedly installed on the outer wall of the connecting plate. When the fire extinguishing device is used, after the blanking cap is detached from the rotary table, the rotary table is rotated relative to the spray head, so that the needed spray holes are aligned with the through holes, then the valve assembly is opened, and the fire extinguishing agent in the tank body can be fed into the spray head through the hose and sprayed out through the corresponding spray holes; according to the fire extinguishing device, the spraying range of the sprayed fire extinguishing agent can be adjusted, and when the spraying hole internally provided with the guide cone is selected, the sprayed fire extinguishing agent diffuses in a cone shape, so that the fire extinguishing requirements of different fire behaviors are met.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguisher technology, specifically a miniature handheld fire extinguisher. Background Technology

[0002] Fire extinguishers are one of the most common fire prevention facilities. They are stored in public places or places where fires may occur. They are fire-fighting facilities designed for different causes of fire. A fire extinguisher usually consists of a fire extinguisher cylinder, a rubber hose, and a nozzle.

[0003] A search revealed that patent CN220572558U discloses an anti-clogging foam fire extinguisher. This extinguisher uses a sealed disc to isolate the nozzle from the outside environment, preventing dust, insects, and other contaminants from entering and clogging the nozzle. Furthermore, the use of a conical component to guide the foam during use helps improve fire extinguishing efficiency.

[0004] While the above solution can isolate the nozzle using a sealed disc to prevent it from being blocked by foreign objects, the guide groove located outside the sealed disc lacks protection and is at risk of being blocked by dust, insects, etc., which needs to be improved. Furthermore, this solution cannot adjust the spray pattern of the foam extinguishing agent. Therefore, we propose a miniature handheld fire extinguisher that is small in size, easy to carry, and convenient to use. Utility Model Content

[0005] The purpose of this invention is to provide a miniature handheld fire extinguisher to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A miniature handheld fire extinguisher includes a canister containing an extinguishing agent. A valve assembly is installed at the top opening of the canister. A hose is fixedly connected to the outlet of the valve assembly. A nozzle is fixedly sleeved at the end of the hose away from the valve assembly. A connecting plate is fixedly connected to the bottom end of the nozzle. A through hole is provided through the connecting plate. A connecting pipe for connecting the through hole and the hose is fixedly installed on the outer wall of the connecting plate. A turntable is rotatably connected to the outer wall of the connecting plate. Multiple spray holes are circumferentially distributed on the turntable. The outlet diameter of each spray hole is different. A guide cone is fixedly connected to at least one spray hole through multiple connecting blocks. A plug is detachably installed at the bottom end of the turntable.

[0008] As a further embodiment of this utility model: a stepped hole is provided through the bottom of the turntable, a rotating shaft is inserted through the stepped hole, the top end of the rotating shaft is fixedly connected to the connecting plate, and a stop block is fixedly connected to the bottom end of the rotating shaft.

[0009] As a further embodiment of this utility model: a blind hole is provided at the bottom of the connecting plate, and a spring and a steel ball are arranged from top to bottom in the blind hole. Multiple positioning grooves are distributed in a circular pattern on the top surface of the turntable. Each positioning groove corresponds to a spray hole, and each positioning groove is adapted to a steel ball.

[0010] As a further embodiment of this utility model: a sealing ring is embedded at the bottom of the connecting plate corresponding to the through hole, and the bottom surface of the sealing ring is in contact with the top surface of the turntable.

[0011] As a further embodiment of this utility model: a toggle block is fixedly connected to the outer wall of the plug, an inner convex ring is integrally formed on the inner wall of the plug, and an outer convex ring is integrally formed on the outer wall of the turntable near the bottom end, wherein the inner diameter of the inner convex ring is smaller than the outer diameter of the outer convex ring.

[0012] As a further improvement of this utility model, the outer wall of the turntable located above the plug is provided with anti-slip texture.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In use, after removing the plug on the turntable, rotate the turntable relative to the nozzle to align the desired nozzle with the through hole. Then, open the valve assembly to send the extinguishing agent in the tank into the nozzle through the hose and spray it out from the corresponding nozzle. By selecting nozzles with different discharge diameters, the spray range of the extinguishing agent can be adjusted. When a nozzle with a guide cone is selected, the sprayed extinguishing agent will spread in a cone shape to meet the extinguishing needs of different fire situations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a miniature handheld fire extinguisher.

[0016] Figure 2 This is a schematic diagram of the internal structure of the nozzle in a miniature handheld fire extinguisher.

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This is a schematic diagram of the nozzle distribution structure in a miniature handheld fire extinguisher.

[0019] The components include: 1. Tank body; 2. Valve assembly; 3. Hose; 4. Nozzle; 5. Connecting pipe; 6. Connecting plate; 7. Through hole; 8. Sealing ring; 9. Turntable; 10. Stepped hole; 11. Spray hole; 12. Connecting block; 13. Guide cone; 14. Blind hole; 15. Spring; 16. Steel ball; 17. Positioning groove; 18. Plug; 19. Outer convex ring; 20. Inner convex ring; 21. Anti-slip texture; 22. Rotating shaft; 23. Stop block; 24. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 In this embodiment of the invention, a miniature handheld fire extinguisher includes a canister 1 containing an extinguishing agent. The canister 1 is less than 30cm high and less than 8cm in diameter, making it convenient for home use or storage in a car. The extinguishing agent can be dry powder, foam, or similar. A valve assembly 2 is installed at the top opening of the canister 1. A hose 3 is fixedly connected to the outlet of the valve assembly 2. A nozzle 4 is fixedly sleeved at the end of the hose 3 away from the valve assembly 2. A connecting plate 6 is fixedly connected to the bottom end of the device. A through hole 7 is provided through the connecting plate 6. A connecting pipe 5 for connecting the through hole 7 and the hose 3 is fixedly installed on the outer wall of the connecting plate 6. A turntable 9 is rotatably connected to the outer wall of the connecting plate 6. Multiple spray holes 11 are circumferentially distributed on the turntable 9. The diameter of the outlet of each spray hole 11 is different. A guide cone 13 is fixedly connected to at least one spray hole 11 through multiple connecting blocks 12. A plug 18 is detachably installed at the bottom end of the turntable 9.

[0022] By adopting the above-mentioned solution, when using this utility model, after removing the plug 18 on the turntable 9, the turntable 9 is rotated relative to the nozzle 4 to align the required nozzle 11 with the through hole 7. Then, the valve assembly 2 is opened, and the extinguishing agent in the tank 1 is sent into the nozzle 4 through the hose and sprayed out from the corresponding nozzle 11. By selecting nozzles 11 with different discharge diameters, the spraying range of the extinguishing agent can be adjusted. When a nozzle 11 with a guide cone 13 is selected, the sprayed extinguishing agent will spread in a cone shape to meet the extinguishing needs of different fire situations.

[0023] Specific combination Figure 2 In one embodiment of the present invention, a stepped hole 10 is provided through the bottom of the turntable 9, a rotating shaft 23 is provided inside the stepped hole 10, the top end of the rotating shaft 23 is fixedly connected to the connecting plate 6, and a stop block 24 is fixedly connected to the bottom end of the rotating shaft 23.

[0024] The turntable 9 can rotate relative to the connecting plate 6 with the turntable 23 as the center by the cooperation between the rotating shaft 23 and the stepped hole 10. The stop block 24 can prevent the turntable 9 from falling off the rotating shaft 23.

[0025] Specific combination Figure 2-4 In one embodiment of the present invention, a blind hole 14 is provided at the bottom of the connecting plate 6, and a spring 15 and a steel ball 16 are arranged from top to bottom in the blind hole 14. A plurality of positioning grooves 17 are distributed in a circular pattern on the top surface of the turntable 9. The positioning grooves 17 correspond one-to-one with the spray holes 11, and each positioning groove 17 is adapted to the steel ball 16.

[0026] By setting the steel ball 16 and each groove 17, when a nozzle 11 rotates to align with the through hole 7, the steel ball 16 will just enter the corresponding positioning groove 17 under the action of the spring 15. This prevents the turntable 7 from rotating relative to the connecting plate 6 without human operation, and makes it easier to position the rotation angle of the turntable 7 on the connecting plate 6 so that the through hole 7 can accurately align with each nozzle 11.

[0027] Specific combination Figure 2 In one embodiment of this utility model, a sealing ring 8 is embedded at the bottom of the connecting plate 6 corresponding to the through hole 7, and the bottom surface of the sealing ring 8 is in contact with the top surface of the turntable 9 to ensure the sealing between the through hole 7 and the spray hole 11.

[0028] Specific combination Figure 3 In one embodiment of the present invention, a lever 19 is fixedly connected to the outer wall of the plug 18, an inner convex ring 21 is integrally formed on the inner wall of the plug 18, and an outer convex ring 20 is integrally formed on the outer wall of the turntable 9 near the bottom end. The inner diameter of the inner convex ring 21 is smaller than the outer diameter of the outer convex ring 20.

[0029] By prying the plug 18 with the lever 19, the plug 18 and the inner convex ring 21 are deformed, and the plug 18 can be removed from the turntable 9. The operation is simple and convenient.

[0030] Specific combination Figure 3 In one embodiment of this utility model, the outer wall of the turntable 9 above the plug 18 is provided with anti-slip texture 22 to prevent slippage during the rotation of the turntable 9.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A miniature handheld fire extinguisher, characterized in that: The device includes a tank (1) containing extinguishing agent. A valve assembly (2) is installed at the top opening of the tank (1). A hose (3) is fixedly connected to the outlet of the valve assembly (2). A nozzle (4) is fixedly sleeved at the end of the hose (3) away from the valve assembly (2). A connecting plate (6) is fixedly connected to the bottom end of the nozzle (4). A through hole (7) is provided through the connecting plate (6). A connecting pipe (5) for connecting the through hole (7) and the hose (3) is fixedly installed on the outer wall of the connecting plate (6). A turntable (9) is rotatably connected to the outer wall of the connecting plate (6). Multiple spray holes (11) are circumferentially distributed on the turntable (9). The outlet diameter of each spray hole (11) is different. A guide cone (13) is fixedly connected to at least one spray hole (11) through multiple connecting blocks (12). A plug (18) is detachably installed at the bottom end of the turntable (9).

2. The miniature handheld fire extinguisher according to claim 1, characterized in that: The bottom of the turntable (9) is provided with a stepped hole (10), and a rotating shaft (23) is provided inside the stepped hole (10). The top end of the rotating shaft (23) is fixedly connected to the connecting plate (6), and a stop block (24) is fixedly connected to the bottom end of the rotating shaft (23).

3. A miniature handheld fire extinguisher according to claim 2, characterized in that: The bottom of the connecting plate (6) is provided with a blind hole (14). A spring (15) and a steel ball (16) are arranged from top to bottom in the blind hole (14). The top surface of the turntable (9) is provided with a plurality of positioning grooves (17) distributed in a circular pattern. The positioning grooves (17) correspond one-to-one with the spray holes (11). The positioning grooves (17) are all adapted to the steel balls (16).

4. A miniature handheld fire extinguisher according to claim 1, characterized in that: A sealing ring (8) is embedded at the bottom of the connecting plate (6) corresponding to the through hole (7), and the bottom surface of the sealing ring (8) is in contact with the top surface of the turntable (9).

5. A miniature handheld fire extinguisher according to claim 1, characterized in that: The outer wall of the plug (18) is fixedly connected to a lever (19), the inner wall of the plug (18) is integrally formed with an inner convex ring (21), the outer wall of the turntable (9) near the bottom is integrally formed with an outer convex ring (20), and the inner diameter of the inner convex ring (21) is smaller than the outer diameter of the outer convex ring (20).

6. A miniature handheld fire extinguisher according to claim 1, characterized in that: The turntable (9) has anti-slip texture (22) on its outer wall above the plug (18).

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