Dry powder extinguisher valve body convenient for pulling out safety pin

Through innovative design of the valve body of the dry powder fire extinguisher, the problem of easy wear and tear on the safety pin during extraction in existing technologies is solved by utilizing structures such as the safety handle, support frame, guide block, and cutting ring. This enables quick extraction and prevents misoperation, thereby improving the efficiency and practicality of the fire extinguisher.

CN223959111UActive Publication Date: 2026-03-03NINGBO WANGYONG NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520470072.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-03-03
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

Existing dry fire extinguisher devices are prone to damage when multiple safety pins are pulled out during minor fires, and it is difficult to install new safety pins, resulting in poor practicality.

Method used

Design a dry powder fire extinguisher valve body that facilitates the removal of the safety pin. Through a combination structure of safety handle, support frame, guide block, connecting block and cutting ring, the safety pin can be quickly removed and misoperation can be prevented. The structure includes a sliding connection between the guide groove and the ball, a cutting ring that cuts the plastic insert, and a connecting block that pushes the safety pin to separate.

Benefits of technology

It enables the quick removal of the safety pin, avoids damage to the fire extinguisher, prevents misoperation, maintains the integrity of the fire extinguisher, and improves the efficiency and practicality of the fire extinguisher.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dry powder fire extinguisher valve body convenient for pulling out a safety pin. The dry powder fire extinguisher valve body comprises a fire extinguisher valve body, a fixed handle is fixedly connected to one side of the upper end of the fire extinguisher valve body, and a pressing handle is rotationally connected to one side of the fixed handle; one side of the pressing handle is rotationally connected with a safety handle, one side of the safety handle is fixedly connected with a supporting frame, a guide block is arranged in the middle of the supporting frame, and the middle of the guide block is fixedly connected with a connecting block; a cutting ring is arranged on the other side of the guide block, and by arranging the safety handle, the supporting frame, the guide block, the connecting block and the cutting ring, when the safety handle is pressed, the plastic inserting rod on one side of the safety pin is damaged, the safety pin is conveniently and rapidly pulled out, and the dry powder fire extinguisher is conveniently and rapidly put into use; the safety handle is arranged between the fixed handle and the pressing handle, so that the situation that the safety handle is touched by mistake is conveniently prevented.
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Description

Technical Field

[0001] This utility model relates to the field of dry fire extinguisher technology, specifically to a dry powder fire extinguisher valve body that facilitates the removal of the safety pin. Background Technology

[0002] In emergencies such as fires, time is of the essence. The safety pin on the valve body of a dry fire extinguisher is designed to be easy and quick to pull out, which can significantly shorten the time from the discovery of a fire to the activation of the fire extinguisher. In addition, the plastic strip, as an auxiliary fixing device for the safety pin, can ensure that the safety pin will not accidentally fall off or loosen during transportation and storage. This helps to maintain the integrity of the fire extinguisher and prevent misoperation when it is not needed. However, the speed at which the plastic strip can be removed affects the efficiency of the dry fire extinguisher in use.

[0003] Patent document CN222467922U discloses a fire extinguisher device, which includes a housing, at least two fire extinguishers, a limiting structure, and a pulling structure. The limiting structure is located inside the housing. The pulling structure includes a pulling assembly and a sliding plate. One end of the sliding plate is connected to the pulling assembly, and the other end is horizontally slidably connected to the limiting structure. The pull-out ends of all safety pins are connected to the pulling assembly. When a fire extinguisher needs to be used, the pull assembly is held and pulled outwards, causing the sliding plate to slide away from the limiting structure. The pull-out ends of the safety pins are connected to the pulling assembly. During the outward pulling process, all safety pins are pulled off the fire extinguishers, allowing the extinguishers to be used directly. By setting up the pulling assembly, all safety pins on all fire extinguishers can be quickly and uniformly pulled off at once, saving time and allowing for rapid retrieval of all fire extinguishers from the housing for fire extinguishing. However, this patent still has the following problems in actual use:

[0004] This fire extinguisher device allows for quick removal of the safety pin when taking out the fire extinguisher by operating the handle and lever. However, since the device removes the safety pins of multiple fire extinguishers at the same time during use, it can easily damage the fire extinguishers, especially in cases of minor fires. Furthermore, it is difficult to install the safety pins of new dry fire extinguishers into the housing, resulting in poor practicality of the fire extinguisher.

[0005] Therefore, a dry powder fire extinguisher valve body with an easy-to-pull-out safety pin was proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a dry powder fire extinguisher valve body that facilitates the removal of the safety pin, thereby solving the problem mentioned in the background art. Currently, the fire extinguisher device achieves the effect of quickly removing the safety pin when taking out the fire extinguisher by operating the handle and lever. However, since the fire extinguishing device removes the safety pins of multiple fire extinguishers at the same time during use, it is easy to damage the fire extinguishers when the fire is small. Furthermore, it is difficult to install the safety pin of a new dry powder fire extinguisher in the housing, resulting in poor practicality of the fire extinguisher.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dry powder fire extinguisher valve body that facilitates the removal of the safety pin, comprising a fire extinguisher valve body body;

[0008] A fixed handle is fixedly connected to one side of the upper end of the fire extinguisher valve body. A pressing handle is rotatably connected to one side of the fixed handle. A safety pin insertion hole is opened on one side of the pressing handle. A safety pin body is inserted into the middle of the safety pin insertion hole. A plastic insert is inserted into the middle of one end of the safety pin body.

[0009] Also includes:

[0010] A safety handle is rotatably connected to one side of the pressing handle, a support frame is fixedly connected to one side of the safety handle, a guide groove is provided in the middle of the support frame, a guide block is provided in the middle of the guide groove, a ball is rotatably connected to one side of the guide block, and a connecting block is fixedly connected to the middle of the guide block.

[0011] A cutting ring is provided on the other side of the guide block.

[0012] Preferably, the safety handle is U-shaped, with its open end rotatably connected to the rotating parts of the fixed handle and the pressing handle. The safety handle is positioned between the fixed handle and the pressing handle to facilitate its positioning.

[0013] Preferably, the support frame is symmetrically arranged on the outer wall of the safety handle near the safety pin insertion hole, and the side of the support frame is set as a triangular bracket to facilitate the positioning of the support frame.

[0014] Preferably, the guide groove is formed on the side of the support frame and the safety handle near the safety pin insertion hole, which facilitates the positioning of the guide groove.

[0015] Preferably, the cross-section of the guide block is set to an "I" shape, and the guide block is slidably connected to the inner wall of the guide groove on one side of the support frame through ball bearings, which facilitates the positioning of the guide block.

[0016] Preferably, the connecting block is configured as an inverted "U" shape, the connecting block is made of silicone material, and the connecting block is fitted and connected to the outer side of the safety pin body, which facilitates the connection between the connecting block and the safety pin body.

[0017] Preferably, the cutting ring is fixedly connected to the middle of the guide block on the side away from the connecting block, the cutting ring is sleeved on the outside of the safety pin body, and the cutting ring is located at the end of the safety pin body near the plastic insert rod, which facilitates the disassembly of the plastic insert rod.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This dry powder fire extinguisher valve body, which facilitates the removal of the safety pin, uses a safety handle, support frame, guide block, connecting block, and cutting ring to facilitate the destruction of the plastic insert on one side of the safety pin when the safety handle is pressed, enabling quick removal of the safety pin and facilitating the rapid use of the dry powder fire extinguisher. By placing the safety handle between the fixed handle and the pressing handle, it helps prevent accidental activation of the safety handle. The specific details are as follows:

[0019] 1. The valve body of this dry powder fire extinguisher is designed with a safety handle, support frame, guide block, connecting block, and cutting ring. This design allows the cutting ring to cut the plastic insert when the safety handle is pressed, while the connecting block pushes the safety pin body away from the safety pin hole. This damages the plastic insert on one side of the safety pin, facilitating the quick removal of the safety pin and enabling the dry powder fire extinguisher to be used quickly. As a result, the valve body of this dry powder fire extinguisher is more convenient and faster to use, and it is less likely to waste the dry powder fire extinguisher. It is also not affected by the placement location.

[0020] 2. The valve body of this dry powder fire extinguisher features a safety handle positioned between the fixed handle and the push handle, which helps prevent accidental activation of the safety handle, prevents misoperation when not in use, and helps maintain the integrity of the fire extinguisher. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a top view of the overall structure of this utility model;

[0023] Figure 3 This utility model Figure 1 Enlarged cross-sectional view of the structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the connecting block structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the cutting ring structure of this utility model.

[0026] In the diagram: 1. Fire extinguisher valve body; 2. Fixed handle; 3. Press handle; 4. Safety pin hole; 5. Safety handle; 6. Support frame; 7. Guide groove; 8. Guide block; 9. Ball bearing; 10. Connecting block; 11. Cutting ring; 12. Safety pin body; 13. Plastic insert rod. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5 This utility model provides a technical solution: a dry powder fire extinguisher valve body that facilitates the removal of the safety pin, comprising a fire extinguisher valve body body 1; a fixed handle 2 is fixedly connected to one side of the upper end of the fire extinguisher valve body body 1, a pressing handle 3 is rotatably connected to one side of the fixed handle 2, a safety pin insertion hole 4 is provided on one side of the pressing handle 3, a safety pin body 12 is inserted into the middle of the safety pin insertion hole 4, and a plastic insert 13 is inserted into the middle of one end of the safety pin body 12; it also includes: a safety handle 5 is rotatably connected to one side of the pressing handle 3, a support frame 6 is fixedly connected to one side of the safety handle 5, a guide groove 7 is provided in the middle of the support frame 6, a guide block 8 is provided in the middle of the guide groove 7, a ball bearing 9 is rotatably connected to one side of the guide block 8, and a connecting block 10 is fixedly connected to the middle of the guide block 8; the safety handle 5 is U-shaped, the open end of the safety handle 5 is rotatably connected to the rotating parts of the fixed handle 2 and the pressing handle 3, and the safety handle 5 is located in the middle of the fixed handle 2 and the pressing handle 3; the support frame 6 is symmetrically arranged. On the outer wall of the safety handle 5 near the safety pin insertion hole 4, the side of the support frame 6 is set as a triangular bracket; the guide groove 7 is opened on the side of the support frame 6 and the safety handle 5 near the safety pin insertion hole 4; the cross-section of the guide block 8 is set as "I" shape, and the guide block 8 is slidably connected to the inner wall of the guide groove 7 on one side of the support frame 6 through the ball bearing 9; the connecting block 10 is set as an inverted "U" shape, the connecting block 10 is made of silicone material, and the connecting block 10 is attached to the outer side of the safety pin body 12. The setting of the triangular support frame 6 facilitates the effect of the guide block 8 unfolding to both sides when the safety handle 5 is pressed down, and the attachment of the silicone material connecting block 10 to the outer wall of the safety pin body 12 facilitates the separation of the safety pin body 12 with the guide block 8 in the safety pin insertion hole 4, thereby promoting the quick pull-out of the safety pin body 12. Furthermore, the safety handle 5 is set in the middle of the fixed handle 2 and the pressing handle 3, which facilitates the protection of the safety handle 5 and reduces the possibility of accidental activation.

[0029] A cutting ring 11 is provided on the other side of the guide block 8. The cutting ring 11 is fixedly connected to the middle of the guide block 8 on the side away from the connecting block 10. The cutting ring 11 is sleeved on the outside of the safety pin body 12. The cutting ring 11 is located at the end of the safety pin body 12 near the plastic insert 13. By setting the cutting ring 11, it is convenient to cut and disassemble the plastic insert 13 when the guide block 8 moves and unfolds, making it easier and faster to pull out the safety pin body 12.

[0030] Working principle: When using the valve body of this dry powder fire extinguisher that is easy to pull out the safety pin, firstly, by pressing the safety handle 5, the safety handle 5 drives the support frame 6 to rotate, thereby causing the guide block 8 to slide in the guide groove 7 through the ball bearing 9.

[0031] Next, the connecting block 10 pushes the safety pin body 12 to move in the safety pin insertion hole 4, and then the cutting ring 11 cuts the plastic insertion rod 13, so that the end of the safety pin body 12 can be pulled out.

[0032] Finally, by pressing the pressing handle 3, the pressing handle 3 rotates on one side of the fixed handle 2, thereby opening the fire extinguisher valve body 1, and the dry fire extinguisher can be used.

[0033] 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 dry powder fire extinguisher valve body that facilitates the removal of the safety pin, comprising a fire extinguisher valve body body (1); A fixed handle (2) is fixedly connected to one side of the upper end of the fire extinguisher valve body (1). A pressing handle (3) is rotatably connected to one side of the fixed handle (2). A safety pin insertion hole (4) is opened on one side of the pressing handle (3). A safety pin body (12) is inserted into the middle of the safety pin insertion hole (4). A plastic insert rod (13) is inserted into the middle of one end of the safety pin body (12). characterized in that Also includes: A safety handle (5) is rotatably connected to one side of the pressing handle (3), and a support frame (6) is fixedly connected to one side of the safety handle (5). A guide groove (7) is provided in the middle of the support frame (6), and a guide block (8) is provided in the middle of the guide groove (7). A ball bearing (9) is rotatably connected to one side of the guide block (8), and a connecting block (10) is fixedly connected to the middle of the guide block (8). A cutting ring (11) is provided on the other side of the guide block (8).

2. A dry chemical extinguisher valve body facilitating extraction of a safety pin as claimed in claim 1, wherein: The safety handle (5) is U-shaped, and the open end of the safety handle (5) is rotatably connected to the rotating part of the fixed handle (2) and the pressing handle (3). The safety handle (5) is located in the middle of the fixed handle (2) and the pressing handle (3).

3. A dry chemical extinguisher valve body facilitating extraction of a safety pin as defined in claim 1, wherein: The support frame (6) is symmetrically arranged on the outer wall of the safety handle (5) near the safety pin insertion hole (4), and the side of the support frame (6) is set as a triangular bracket.

4. A dry chemical extinguisher valve body facilitating extraction of a safety pin as defined in claim 1, wherein: The guide groove (7) is provided on the side of the support frame (6) and the safety handle (5) near the safety pin insertion hole (4).

5. A dry chemical extinguisher valve body facilitating extraction of a safety pin as defined in claim 1, wherein: The cross section of the guide block (8) is set in the shape of "I". The guide block (8) is slidably connected to the inner wall of the guide groove (7) on one side of the support frame (6) through the ball (9).

6. A dry chemical extinguisher valve body facilitating extraction of a safety pin as defined in claim 1, wherein: The connecting block (10) is configured as an inverted "U" shape, the connecting block (10) is made of silicone material, and the connecting block (10) is attached to the outer side of the safety pin body (12).

7. A dry chemical extinguisher valve body facilitating extraction of a safety pin as defined in claim 1, wherein: The cutting ring (11) is fixedly connected to the middle of the guide block (8) on the side away from the connecting block (10). The cutting ring (11) is sleeved on the outside of the safety pin body (12). The cutting ring (11) is located at one end of the safety pin body (12) near the plastic insert (13).

Citation Information

Patent Citations

  • Fire extinguisher device

    CN222467922U