A fire extinguisher valve sealing assembly

Abstract

This utility model relates to the technical field of fire extinguisher accessories, specifically disclosing a fire extinguisher valve sealing assembly, including a valve connector; a fire extinguisher interface threadedly connected to the valve connector; a sealing sleeve connected to the outside of the valve connector, the top of the sealing sleeve having a limiting ring, the top of the limiting ring having a first annular groove, and one side of the inner wall of the limiting ring having a second annular groove; and a sealing ring connected to the top outside of the valve connector, the bottom of the sealing ring having a first sealing strip that mates with the first annular groove, and the bottom outside of the sealing ring having a second sealing strip that mates with the second annular groove; this utility model uses a threaded initial seal, the sealing ring and the sealing sleeve mate, and the first and second sealing strips mate with the corresponding first and second annular grooves to maintain the sealing effect. The double grooves and the interlocking of the sealing strips improve the sealing reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of fire extinguisher accessories, specifically a fire extinguisher valve sealing assembly. Background Technology

[0002] The fire extinguisher valve is the core component that controls the release of extinguishing agent. Its sealing performance directly affects the reliability and safety of the fire extinguisher. If the seal fails, it may cause the extinguishing agent to leak slowly or leak suddenly under high pressure.

[0003] The self-controlled fire extinguisher valve disclosed in patent publication number CN214971387U includes a main body, a nozzle, a narrow-volume connection port, a wide-volume connection port, a nozzle, and a connecting pipe. The nozzle is located on the left side of the main body near the middle. Multiple connection ports are located around the bottom of the main body, and the connecting pipe is threadedly connected to the bottom of the main body via these connection ports. A narrow-volume connection port is located around the inner wall of the left end of the nozzle, and a wide-volume connection port is located around the inner wall of the right end of the nozzle. Both the narrow-volume and wide-volume connection ports are threaded to the nozzle. A first transmission chamber is located on the inner wall of the connecting pipe near the middle, and a connecting thread is located around the outer wall of the bottom end of the connecting pipe. The fire extinguisher and valve are directly connected using a threaded connection.

[0004] In the aforementioned valves, a connecting pipe is used to connect to the fire extinguisher. Particles in the dry powder extinguishing agent can flow with the pressurized airflow through the threaded gaps, and the sealing performance of the connection still needs improvement. To address these issues, a fire extinguisher valve sealing assembly is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a fire extinguisher valve sealing assembly 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 fire extinguisher valve sealing assembly, including a valve connector;

[0008] Fire extinguisher connector that is threaded to the valve fitting;

[0009] A sealing sleeve connected to the outside of the valve connector, the sealing sleeve having a limiting ring at its top, a first annular groove at its top, and a second annular groove on one side of its inner wall; and

[0010] A sealing ring is connected to the top outer side of the valve connector. The bottom of the sealing ring is provided with a first sealing strip that mates with the first annular groove, and the bottom outer side of the sealing ring is provided with a second sealing strip that mates with the second annular groove.

[0011] In one alternative: the outer wall of the valve connector is provided with external threads, and the inner wall of the fire extinguisher interface is provided with internal threads that mate with the external threads.

[0012] In one alternative: the outer wall of the sealing sleeve is connected to an elastic fastening ring, which is used to tightly fit the bottom arc of the sealing sleeve against the outer wall of the fire extinguisher interface.

[0013] In one alternative: the valve connector has two sets of positioning grooves on its top annular outer wall, and the inner wall of the sealing ring is connected to a positioning ring that mates with the positioning grooves.

[0014] In one alternative: the bottom of the limiting ring is in close contact with the top of the fire extinguisher interface.

[0015] In one alternative: the outer wall of the sealing ring, positioned between the first and second sealing strips, is arc-shaped, and the top of the inner wall of the limiting ring is provided with an arc-shaped outer wall that fits against the sealing ring.

[0016] In one alternative: the inner diameter of the limiting ring is larger than the inner diameter of the fire extinguisher interface.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention employs a threaded initial seal, with the sealing ring and sealing sleeve engaging. The first and second sealing strips are aligned with the corresponding first and second annular grooves to maintain the sealing effect. The double grooves and the interlocking of the sealing strips enhance the reliability of the seal. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 3 This is a schematic diagram of the disassembled structure of this utility model.

[0022] Figure 4 This is a cross-sectional structural diagram of the sealing ring in this utility model.

[0023] Figure 5 This is a cross-sectional structural diagram of the valve connecting pipe in this utility model.

[0024] Figure 6 This is a cross-sectional structural diagram of the sealing sleeve in this utility model.

[0025] In the diagram: 100, valve connector; 200, fire extinguisher connector; 300, sealing sleeve; 400, sealing ring; 500, elastic fastening ring; 101, external thread; 102, positioning groove; 201, internal thread; 301, limit ring; 302, first annular groove; 303, second annular groove; 401, positioning ring; 402, first sealing strip; 403, second sealing strip. Detailed Implementation

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[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 1-6 In this embodiment, a fire extinguisher valve sealing assembly includes a valve connector 100;

[0029] Fire extinguisher port 200 is threadedly connected to valve pipe 100;

[0030] A sealing sleeve 300 is connected to the outside of the valve connecting pipe 100. The top of the sealing sleeve 300 is provided with a limiting ring 301. The top of the limiting ring 301 is provided with a first annular groove 302. A second annular groove 303 is provided on one side of the inner wall of the limiting ring 301.

[0031] And a sealing ring 400 connected to the top outer side of the valve connector 100, wherein the bottom of the sealing ring 400 is provided with a first sealing strip 402 that mates with the first annular groove 302, and the bottom outer side of the sealing ring 400 is provided with a second sealing strip 403 that mates with the second annular groove 303;

[0032] Using the above scheme, after the valve connector 100 is threadedly connected to the fire extinguisher interface 200, the top of the sealing sleeve 300 is tightly connected to the sealing ring 400, the first sealing strip 402 is embedded in the first annular groove 302, and the second sealing strip 403 is embedded in the second annular groove 303, maintaining a stable sealing effect.

[0033] Please see Figure 2 The valve connector 100 has an external thread 101 on its outer wall, and the fire extinguisher interface 200 has an internal thread 201 on its inner wall that is threaded to the external thread 101.

[0034] Specifically, the dimensions of the valve connector 100 and the fire extinguisher interface 200 are set according to actual needs. The valve connector 100 is connected to the bottom of the valve on the fire extinguisher head, and the fire extinguisher interface 200 is a structure at the mouth of the fire extinguisher bottle. The valve connector 100 and the fire extinguisher interface 200 are connected by threads 101 on the outer wall of the valve connector 100 and internal threads 201 on the inner wall of the fire extinguisher interface 200, thus completing the mechanical fixation.

[0035] Please see Figure 1-3 The outer wall of the sealing sleeve 300 is connected to an elastic fastening ring 500, which is used to tightly fit the bottom arc of the sealing sleeve 300 against the outer wall of the fire extinguisher interface 200. Specifically, the elastic fastening ring 500 achieves a clamping effect, reducing the gap between the sealing sleeve 300 and the fire extinguisher interface 200.

[0036] Please see Figure 5 The valve connector 100 has two sets of positioning grooves 102 on its top annular outer wall, and the inner wall of the sealing ring 400 is connected to a positioning ring 401 that cooperates with the positioning grooves 102. Specifically, the positioning grooves 102 are designed to facilitate the stable fixing of the sealing ring 400 on the valve connector 100, and the positioning ring 401 can be embedded in the positioning grooves 102.

[0037] Please see Figure 2 The bottom of the limiting ring 301 is in close contact with the top of the fire extinguisher interface 200; furthermore, the inner diameter of the limiting ring 301 is larger than the inner diameter of the fire extinguisher interface 200; specifically, the structural setting that the inner diameter of the limiting ring 301 is larger than the inner diameter of the fire extinguisher interface 200 not only ensures the limiting function, but also avoids interference with other components, which is conducive to the use of the sealing assembly.

[0038] Please see Figure 4 The outer wall of the sealing ring 400, which is positioned between the first sealing strip 402 and the second sealing strip 403, is arc-shaped. The top of the inner wall of the limiting ring 301 is provided with an arc-shaped outer wall that fits into the sealing ring 400. The arc-shaped fit of the inner wall can disperse stress, reduce local wear, and extend the service life of the component.

[0039] The working principle of this utility model is as follows: the valve connector 100 is connected to the bottom of the valve on the head of the fire extinguisher, the fire extinguisher interface 200 is the structure at the mouth of the fire extinguisher bottle, and the valve connector 100 and the fire extinguisher interface 200 are threadedly connected through the external thread 101 on the outer wall of the valve connector 100 and the internal thread 201 on the inner wall of the fire extinguisher interface 200. The first sealing strip 402 is embedded in the first annular groove 302, and the second sealing strip 403 is embedded in the second annular groove 303 to maintain a stable sealing effect.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fire extinguisher valve sealing assembly, characterized in that, include Valve connection (100); Fire extinguisher port (200) is threadedly connected to valve connector (100); A sealing sleeve (300) is connected to the outside of the valve connector (100). The sealing sleeve (300) has a limiting ring (301) at its top, a first annular groove (302) at its top, and a second annular groove (303) on one side of the inner wall of the limiting ring (301). A sealing ring (400) is connected to the top outer side of the valve connector (100). The bottom of the sealing ring (400) is provided with a first sealing strip (402) that mates with the first annular groove (302), and the bottom outer side of the sealing ring (400) is provided with a second sealing strip (403) that mates with the second annular groove (303).

2. The fire extinguisher valve sealing assembly according to claim 1, characterized in that: The outer wall of the valve connector (100) is provided with an external thread (101), and the inner wall of the fire extinguisher interface (200) is provided with an internal thread (201) that is threaded to the external thread (101).

3. The fire extinguisher valve sealing assembly according to claim 1, characterized in that: The outer wall of the sealing sleeve (300) is connected to an elastic fastening ring (500) for the bottom arc of the sealing sleeve (300) to fit tightly against the outer wall of the fire extinguisher interface (200).

4. The fire extinguisher valve sealing assembly according to claim 1, characterized in that: The valve connector (100) has two sets of positioning grooves (102) on its top annular outer wall, and the inner wall of the sealing ring (400) is connected to a positioning ring (401) that mates with the positioning grooves (102).

5. A fire extinguisher valve sealing assembly according to claim 1, characterized in that: The bottom of the limiting ring (301) is in close contact with the top of the fire extinguisher interface (200).

6. A fire extinguisher valve sealing assembly according to claim 1, characterized in that: The outer wall of the sealing ring (400) and the space between the first sealing strip (402) and the second sealing strip (403) is arc-shaped, and the top of the inner wall of the limiting ring (301) is provided with an arc-shaped outer wall that fits with the sealing ring (400).

7. A fire extinguisher valve sealing assembly according to claim 1, characterized in that: The inner diameter of the limiting ring (301) is larger than the inner diameter of the fire extinguisher interface (200).

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