A hand-held rotary locking fire extinguisher valve mechanism
By designing a hand-operated, rotating locking mechanism for fire extinguisher valves, and utilizing the combination of plastic blocks and pins, the problem of slow valve locking in existing fire extinguishers has been solved. This enables safe locking and quick unlocking of fire extinguishers during transportation, thereby improving fire extinguishing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING JIAYUAN FIRE SAFETY EQUIP CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-14
AI Technical Summary
The existing fire extinguisher valve locking mechanism is not quick enough, which requires removing the lead seal and pin when extinguishing a fire, thus delaying the fire extinguishing time.
Design a hand-held, rotary-locking fire extinguisher valve mechanism. Through the cooperation of a plastic stop and a pin, it avoids accidental locking and allows direct rotation of the rotating block to unlock the handle, simplifying the operation process.
It achieves safe locking of fire extinguishers during transportation and allows for quick unlocking of the handle when needed, thus improving fire extinguishing efficiency.
Smart Images

Figure CN224484772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire extinguishers, specifically to a fire extinguisher valve mechanism that is hand-held and rotated for locking. Background Technology
[0002] A fire extinguisher is a portable fire-fighting tool containing various chemicals. It is one of the most commonly used fire-fighting devices in society. Because fire extinguishers stored in public places usually have valve locks to prevent them from being used indiscriminately.
[0003] Existing fire extinguisher valve locking mechanisms use a pin inserted into the holes of the handle and lever to restrict the position of the lever. A lead seal is then installed at the other end of the pin; this seal is a one-time tamper-proof mark to prevent accidental valve operation. When using the fire extinguisher, the lead seal must be removed first, followed by the pin, to unlock the lever. Then, the lever must be pressed to extinguish the fire. This method is inconvenient and wastes time. Therefore, those skilled in the art have provided a hand-held, rotary-locking fire extinguisher valve mechanism to solve the problems mentioned in the background section. Utility Model Content
[0004] To solve the above technical problems, this utility model provides a hand-held, rotating, and locking fire extinguisher valve mechanism, including a bottle body, a valve body installed at the upper end of the bottle body, a handle installed at the upper end of the valve body, a pressure handle set at the upper end of the valve body, and symmetrical insertion holes opened on the sides of the handle and the pressure handle. A plastic ring is installed at the right end of the pressure handle corresponding to the position of the insertion hole, and a notch is opened on the side of the plastic ring, with several plastic blocks set inside the notch.
[0005] A square block is set on the left side of the handle corresponding to the position of the insertion hole. A circular groove is opened on the right end of the square block. A slot is symmetrically opened on the inner wall of the circular groove. The four insertion holes are rotatably connected to the pin rod. A rotating block is installed on the right end of the pin rod. A fixed block is installed on the left end of the rotating block. The fixed block is located on the side of the plastic stop block inside the notch. A cavity is symmetrically set on the left side of the pin rod. A moving block is slidably connected inside the cavity.
[0006] Preferably, a plurality of positioning blocks are installed on the left end of the pressure handle, and the positioning blocks are arranged around the socket.
[0007] Preferably, the square block has several positioning grooves on its right end, and the positioning grooves correspond to the positions of the positioning block.
[0008] Preferably, the plastic block is fixed to the inner wall of the notch by two welding points.
[0009] Preferably, springs are symmetrically installed at one inner end of the movable block, and a locking block is installed at one outer end of the movable block.
[0010] Preferably, the end face of the card block in the counterclockwise direction is an arc surface.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] This invention uses plastic blocks to prevent the fixed block from rotating, thus preventing the rotating block from easily rotating and avoiding the fire extinguisher from unlocking the handle during transportation. When it is necessary to unlock the handle to extinguish the fire, simply rotate the rotating block to drive the pin rod and the fixed block to rotate, causing several plastic blocks to break under pressure. The pin rod then drives the locking block to rotate counterclockwise and leave the locking slot. Then, simply pull the pin rod out of the round groove and the insertion hole to unlock the handle, thereby quickly and easily extinguishing the fire. Attached Figure Description
[0013] Figure 1 This is the front view of this application;
[0014] Figure 2 This is a rear view of this application;
[0015] Figure 3 This is a schematic diagram of the socket structure of this application;
[0016] Figure 4 This is a schematic diagram of the structure of the plastic ring in this application;
[0017] Figure 5 This is a schematic diagram of the structure of the square block in this application;
[0018] Figure 6 This is a schematic diagram of the structure of the pin rod in this application;
[0019] In the picture:
[0020] 1. Bottle body; 2. Valve body; 3. Handle; 4. Pressure handle; 5. Positioning block; 6. Plastic ring; 7. Notch; 8. Plastic stop block; 9. Square block; 10. Positioning groove;
[0021] 11. Circular groove; 12. Slot; 13. Pin rod; 14. Rotating block; 15. Fixed block; 16. Cavity; 17. Moving block; 18. Spring; 19. Locking block; 20. Insertion hole. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0023] like Figures 1-6As shown, this embodiment provides a hand-held, rotating, and locking fire extinguisher valve mechanism, including a bottle body 1. A valve body 2 is installed on the upper end of the bottle body 1, and a handle 3 is installed on the upper end of the valve body 2. A pressure handle 4 is provided on the upper end of the valve body 2, and the pressure handle 4 is rotatably connected to the handle 3. Insertion holes 20 are symmetrically opened on the sides of both the handle 3 and the pressure handle 4. Several positioning blocks 5 are installed on the left end of the pressure handle 4, and the positioning blocks 5 are arranged around the insertion holes 20. A plastic ring 6 is installed on the right end of the pressure handle 4 corresponding to the position of the insertion hole 20. A notch 7 is opened on the side of the plastic ring 6, and several plastic blocks 8 are arranged inside the notch 7. The plastic blocks 8 are fixed to the inner wall of the notch 7 by two welding points. A pressure handle 4 is positioned on the left side corresponding to the position of the insertion hole 20. A square block 9 is placed, and several positioning grooves 10 are opened on the right end of the square block 9, with the positioning grooves 10 corresponding to the positions of the positioning blocks 5. A circular groove 11 is opened on the right end of the square block 9, and a slot 12 is symmetrically opened on the inner wall of the circular groove 11. The four insertion holes 20 are rotatably connected to the insertion pin 13. A rotating block 14 is installed on the right end of the insertion pin 13, and a fixing block 15 is installed on the left end of the rotating block 14. The fixing block 15 is located on the side of the plastic stop block 8 inside the notch 7. A cavity 16 is symmetrically set on the left side of the insertion pin 13. A moving block 17 is slidably connected inside the cavity 16. A spring 18 is symmetrically installed on the inner end of the moving block 17, and a locking block 19 is installed on the outer end of the moving block 17. The counterclockwise end face of the locking block 19 is an arc surface.
[0024] The working principle of this utility model is: the plastic block 8 blocks the rotation of the fixed block 15, so that the rotating block 14 will not easily rotate, thus preventing the rotating block 14 from rotating during the transportation of the fire extinguisher and causing the handle 4 to unlock. The locking block 19 is locked in the slot 12, so that the square block 9 is fixed at one end of the pin rod 13, and the position of the handle 4 is locked by the pin rod 13.
[0025] When the pressure handle 4 needs to be unlocked for fire extinguishing, simply rotate the rotating block 14 to drive the pin rod 13 and the fixing block 15 to rotate. The fixing block 15 rotates within the notch 7, pushing several plastic blocks 8, causing them to break under force. This allows the rotating block 14 to rotate normally. The rotating block 14 drives two locking blocks 19 to rotate counterclockwise via the pin rod 13. The arc surface of the locking block 19 is compressed into the cavity 16 by the inner wall of the slot 12. The locking block 19 pushes the moving block 17 to compress the spring 18, causing the locking block 19 to rotate away from the slot 12. The square block 9 loses its limiting force. Then, simply pull the pin rod 13 out of the round groove 11 and the insertion hole 20 to unlock the pressure handle 4, thus quickly carrying out fire extinguishing work.
[0026] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A hand-held, rotary-locking fire extinguisher valve mechanism, comprising a cylinder (1), characterized in that, The upper end of the bottle body (1) is equipped with a valve body (2), the upper end of the valve body (2) is equipped with a handle (3), the upper end of the valve body (2) is equipped with a pressure handle (4), the handle (3) and the pressure handle (4) are symmetrically opened with insertion holes (20) on the side, a plastic ring (6) is installed on the right end of the pressure handle (4) corresponding to the position of the insertion hole (20), a notch (7) is opened on the side of the plastic ring (6), and several plastic blocks (8) are set inside the notch (7); A square block (9) is set on the left side of the pressure handle (4) corresponding to the position of the insertion hole (20). A round groove (11) is opened on the right end of the square block (9). A slot (12) is symmetrically opened on the inner wall of the round groove (11). The four insertion holes (20) are rotatably connected to the pin rod (13). A rotating block (14) is installed on the right end of the pin rod (13). A fixing block (15) is installed on the left end of the rotating block (14). The fixing block (15) is located on the side of the plastic stop block (8) inside the notch (7). A cavity (16) is symmetrically set on the left side of the pin rod (13). A moving block (17) is slidably connected inside the cavity (16).
2. The hand-held, rotary-locking fire extinguisher valve mechanism according to claim 1, characterized in that, Several positioning blocks (5) are installed on the left end of the pressure handle (4), and the positioning blocks (5) are arranged around the socket (20).
3. The hand-held, rotary-locking fire extinguisher valve mechanism according to claim 1, characterized in that, The square block (9) has several positioning slots (10) on its right end, and the positioning slots (10) correspond to the positions of the positioning block (5).
4. The hand-held, rotary-locking fire extinguisher valve mechanism according to claim 1, characterized in that, The plastic block (8) is fixed to the inner wall of the notch (7) by two welding points.
5. The hand-held, rotary-locking fire extinguisher valve mechanism according to claim 1, characterized in that, Springs (18) are symmetrically installed on the inner end of the movable block (17), and a locking block (19) is installed on the outer end of the movable block (17).
6. A hand-operated, rotary-locking fire extinguisher valve mechanism according to claim 5, characterized in that, The card block (19) has an arc-shaped end face in the counterclockwise direction.