A valve interface for a fire extinguisher

Abstract

This utility model relates to the field of fire protection equipment technology and discloses an easy-to-disassemble fire extinguisher valve interface, including a valve device. A socket cover is fixedly connected to the bottom of the valve device, and a plug is fixedly connected to the bottom of the socket cover. A quick-connect assembly is slidably connected to the outside of the plug, and a canister is fixedly connected to the bottom of the quick-connect assembly. A sealing protection assembly is provided on the outside of the quick-connect assembly, and the top of the sealing protection assembly is slidably connected to the bottom of the socket cover. In this utility model, quick disassembly and assembly are achieved through the cooperation of a sliding ball and an annular groove, a rotating buckle and a locking strip, eliminating the need for complex tools and cumbersome steps, saving time and improving maintenance and replacement efficiency. Simultaneously, the annular sealing strip and the lower and upper sealing rings form a double seal, effectively preventing media leakage, improving airtightness, ensuring stable fire extinguisher performance, and providing a solid and reliable guarantee for fire safety.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to an easy-to-disassemble fire extinguisher valve interface. Background Technology

[0002] The easy-to-install fire extinguisher valve interface is an innovative fire-fighting accessory. It adopts a quick-opening structure and is equipped with a sealing protection device, which enables quick one-handed installation and removal with reliable airtightness. Its core advantage is that it can significantly shorten the operation time in emergency situations.

[0003] In the existing technology, some easy-to-disassemble fire extinguisher valve interfaces adopt snap-on or threaded quick-connect structures. Snap-on types achieve quick locking by engaging the interface groove with an elastic pawl, while threaded quick-connects utilize coarse threads for quick positioning and fine threads for precise locking, forming an airtight seal with the help of a sealing ring.

[0004] However, in the existing technology, some easy-to-disassemble fire extinguisher valve interfaces are cumbersome to disassemble and assemble, requiring multiple rotations or tool assistance, and have low sealing reliability. After long-term use, the sealing ring is prone to aging and leakage. Therefore, an easy-to-disassemble fire extinguisher valve interface is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an easy-to-disassemble fire extinguisher valve interface, aiming to improve the problems of excessively long disassembly and assembly time and easy contamination of the seal in some existing easy-to-disassemble fire extinguisher valve interfaces.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an easy-to-disassemble fire extinguisher valve interface, including a valve device, a socket cover fixedly connected to the bottom of the valve device, a plug fixedly connected to the bottom of the socket cover, a quick-connect assembly slidably connected to the outside of the plug, a tank body fixedly connected to the bottom of the quick-connect assembly, a sealing protection assembly provided on the outside of the quick-connect assembly, and a top of the sealing protection assembly slidably connected to the bottom of the socket cover;

[0007] As a further description of the above technical solution: the plug has an annular groove on its outside, and an upper sealing ring is fixedly connected to the bottom of the plug;

[0008] As a further description of the above technical solution: the quick-connect assembly includes a connection port, the bottom of which is fixedly connected to the top of the can body, and the outside of the plug is slidably connected to the inside of the connection port;

[0009] As a further description of the above technical solution: the connection port has multiple spherical grooves inside, each of the multiple spherical grooves has a sliding ball slidably connected inside, the outside of the multiple sliding balls is slidably connected inside the annular groove, a spring is fixedly connected to the upper outside of the connection port, and an annular sealing strip is fixedly connected to the top of the connection port.

[0010] As a further description of the above technical solution: the sealing protection component includes an annular blocking strip, the bottom of which is fixedly connected to the top of the spring, the inner side of which is in contact with the outer side of the plurality of sliding balls, and a protective cover is fixedly connected to the outer side of which is annular blocking strip;

[0011] As a further description of the above technical solution: the protective cover has two lower rotating bayonets fixedly connected to its exterior, and two snap-fit ​​strips b are fixedly connected to its exterior. The far side of the two snap-fit ​​strips b is set on the near side of the two lower rotating bayonets. The top of the protective cover is fixedly connected to a lower sealing ring, and the bottom of the lower sealing ring is in contact with the top of the upper sealing ring.

[0012] As a further description of the above technical solution: the outside of the socket cover is provided with two upper rotating buckles, and the outside of the socket cover is provided with two locking strips a, the inner sides of the two upper rotating buckles are slidably connected to the outside of the two locking strips b;

[0013] As a further description of the above technical solution: the inner sides of the two lower rotating bayonets are slidably connected to the outside of the two snap-fit ​​strips a.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the connection can be quickly completed by the snap-fit ​​between the sliding ball and the annular groove, and the cooperation between the rotating buckle and the snap-fit ​​strip. When disassembling, simply operate the rotating buckle to release the protective cover connection, and move the protective cover down to make the sliding ball unobstructed, so that the plug can be easily pulled out. The entire disassembly and assembly process does not require complicated tools and cumbersome steps, which greatly saves time and improves the efficiency of fire extinguisher maintenance and replacement.

[0016] 2. In this utility model, when the plug slides into the connection port, the annular sealing strip fits tightly with the bottom of the plug cover to form a preliminary seal. After the protective cover is installed in place, the lower sealing ring and the upper sealing ring come into close contact to further strengthen the seal. The double seal effectively prevents the leakage of the internal medium of the fire extinguisher, greatly improves the airtightness of the valve interface, and provides a reliable guarantee for fire safety. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of an easily detachable fire extinguisher valve interface proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the annular groove structure of an easily detachable fire extinguisher valve interface proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the snap-fit ​​strip a for an easily detachable fire extinguisher valve interface proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the connection port of an easily detachable fire extinguisher valve interface proposed in this utility model.

[0021] Legend:

[0022] 1. Valve device; 2. Inlet cover; 3. Plug; 4. Tank body; 5. Upper rotating buckle; 6. Snap-fit ​​strip a; 7. Annular groove; 8. Upper sealing ring; 9. Connection port; 10. Spherical groove; 11. Sliding ball; 12. Spring; 13. Annular blocking strip; 14. Protective cover; 15. Annular sealing strip; 16. Lower sealing ring; 17. Lower rotating buckle; 18. Snap-fit ​​strip b. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1 , Figure 3 , Figure 4This utility model provides an embodiment of an easily detachable fire extinguisher valve interface, including a valve device 1. The valve device 1 is a key component for controlling the flow of fire extinguishing medium. A socket cover 2 is fixedly connected to its bottom. The socket cover 2 is disc-shaped, providing an installation base for the plug 3 and offering some protection. A plug 3 is fixedly connected to the bottom of the socket cover 2. The plug 3 has a cylindrical structure and a quick-connect assembly that slides externally to facilitate quick connection and separation with the tank 4. The tank 4 is fixedly connected to the bottom of the quick-connect assembly. The tank 4 is used to store the fire extinguishing medium. The quick-connect assembly is externally equipped with… The sealing and protection assembly is used to prevent the leakage of extinguishing medium and protect the internal connection structure. The top of the sealing and protection assembly is slidably connected to the bottom of the socket cover 2 and can slide relative to the bottom of the socket cover 2 to adapt to installation and disassembly operations. The plug 3 has an annular groove 7 on its outside. The annular groove 7 is an annular groove surrounding the outer wall of the plug 3 and is used to cooperate with the sliding ball 11 to achieve snap-fit ​​fixation. The bottom of the plug 3 is fixedly connected to an upper sealing ring 8. The upper sealing ring 8 is an annular seal made of rubber, which has good elasticity and sealing performance and can effectively prevent the extinguishing medium from leaking from the bottom of the plug 3.

[0025] The quick-connect assembly includes a connector 9, which is a hollow cylindrical structure. Its bottom is fixedly connected to the top of the can 4 for mating with a plug 3. The plug 3 is externally slidably connected to the inside of the connector 9, allowing axial sliding movement within the connector 9 for installation and disassembly. The connector 9 has multiple spherical grooves 10, which are hemispherical recesses evenly distributed on the inner wall of the connector 9. Each of the multiple spherical grooves 10 has a sliding ball 11 slidably connected inside. The sliding ball 11 is spherical and can roll freely within the spherical groove 10. The external sliding balls 11 are... The plug 3 is inserted into the annular groove 7. When the plug 3 is inserted into the connector 9, the sliding ball 11 is engaged in the annular groove 7, thus fixing the plug 3 to the connector 9. A spring 12 is fixedly connected to the upper outer side of the connector 9. The spring 12 has a certain elastic deformation capacity and can be compressed or stretched when subjected to external force. An annular sealing strip 15 is fixedly connected to the top of the connector 9. The annular sealing strip 15 is a rubber annular sealing element and is set around the top edge of the connector 9. When the plug 3 is inserted into the connector 9, the annular sealing strip 15 fits tightly against the bottom of the plug cover 2, thus providing a preliminary sealing effect.

[0026] Reference Figure 2 , Figure 3The sealing protection component includes an annular blocking strip 13, which is an annular structure. Its bottom is fixedly connected to the top of the spring 12 and can move up and down with the extension and contraction of the spring 12. The inner side of the annular blocking strip 13 is in contact with the outer side of multiple sliding balls 11 to prevent the sliding balls 11 from coming out of the annular groove 7 and to ensure the stability of the connection. The annular blocking strip 13 is fixedly connected to a protective cover 14, which is a cylindrical structure and can protect the internal connection structure to prevent external impurities from entering and affecting the sealing performance. The protective cover 14 is fixedly connected to two lower rotating bayonets 17, which are rotating connectors with slots and can rotate around the axis. The protective cover 14 is fixedly connected to two snap-fit ​​strips b18, which are long strip structures. The far side of the two snap-fit ​​strips b18 is set on the near side of the two lower rotating bayonets 17 so that the snap-fit ​​strips a6 on the plug cover 2 and the upper rotating buckle 5 can cooperate to achieve connection and fixation.

[0027] The top of the protective cover 14 is fixedly connected to a lower sealing ring 16, which is a ring-shaped seal made of rubber. Its bottom contacts the top of the upper sealing ring 8, forming a double sealing structure together with the upper sealing ring 8 to further enhance the sealing performance and prevent leakage of fire extinguishing medium. The outside of the inlet cover 2 is provided with two upper rotating buckles 5, which are rotating connectors with slots and can rotate around an axis. They are used to cooperate with the snap-fit ​​strips b18 on the protective cover 14 to achieve connection and fixation. The outside of the inlet cover 2 is provided with two snap-fit ​​strips a6, which are long strip structures. The inner sides of the two upper rotating buckles 5 are slidably connected to the outside of the two snap-fit ​​strips b18, and the inner sides of the two lower rotating buckles 17 are slidably connected to the outside of the two snap-fit ​​strips a6. Through this cooperation between the rotating buckles and the snap-fit ​​strips, the protective cover 14 and the inlet cover 2 can be quickly connected and disassembled.

[0028] Working principle: Align the plug 3 connected to the inlet cover 2 at the bottom of the valve device 1 with the connection port 9 fixed to the top of the tank body 4 in the quick-connect assembly, so that the plug 3 slides into the connection port 9. During this sliding process, the sliding ball 11 in the multiple spherical grooves 10 opened inside the connection port 9 is squeezed by the outer wall of the plug 3 and shrinks into the spherical groove 10. When the plug 3 continues to slide in until the sliding ball 11 reaches the position of the annular groove 7 opened outside the plug 3, the sliding ball 11 loses the squeeze of the outer wall of the plug 3. Under the restriction of its own elasticity and the structure of the spherical groove 10, part of it slides into the annular groove 7, and part of it remains in the spherical groove 10. This achieves the initial positioning and locking of the plug 3 and the connection port 9, preventing the plug 3 from easily coming out of the connection port 9. The annular sealing strip 15 fixedly connected to the top of the connection port 9 fits tightly with the relevant part at the bottom of the inlet cover 2 during the process of the plug 3 sliding into the connection port 9, forming a preliminary sealing structure to prevent the medium inside the fire extinguisher from leaking from the connection between the plug 3 and the connection port 9.

[0029] The protective cover 14 is externally fixedly connected to two lower rotating latches 17 and two locking strips b18. The socket cover 2 is externally provided with two upper rotating latches 5 and two locking strips a6, allowing the inner sides of the two lower rotating latches 17 to slide onto the outer sides of the two locking strips a6, and simultaneously, the inner sides of the two upper rotating latches 5 to slide onto the outer sides of the two locking strips b18. Through this cooperative connection of the rotating latches and locking strips, the protective cover 14 is securely connected between the socket cover 2 and the connection port 9. The lower sealing ring 16 is fixedly connected to the top of the protective cover 14. After the protective cover 14 is installed in place, its bottom is fixedly connected to the top of the upper sealing ring 8 at the bottom of the plug 3. The tight contact, together with the annular sealing strip 15, forms a double sealing structure, which further enhances the airtightness of the valve interface, effectively prevents leakage of the internal medium of the fire extinguisher, and ensures the safety of the fire extinguisher during storage and use. The spring 12 is fixedly connected to the upper side of the outside of the connection port 9, and the top of the spring 12 is fixedly connected to the annular blocking strip 13. The inner side of the annular blocking strip 13 is in contact with the outside of multiple sliding balls 11. After installation, the spring 12 is in a naturally extended or slightly compressed state, and the annular blocking strip 13 plays a blocking role on the sliding balls 11, preventing the sliding balls 11 from sliding out of the annular groove 7, thus ensuring the stability and reliability of the connection between the plug 3 and the connection port 9.

[0030] By rotating the upper buckle 5 and the lower buckle 17, the upper buckle 5 is separated from the locking strip b18, and the lower buckle 17 is separated from the locking strip a6, thereby releasing the connection between the protective cover 14 and the inlet cover 2. The protective cover 14 is slid down, which drives the annular blocking strip 13 to move. The annular blocking strip 13 compresses the spring 12 and moves downward. As the annular blocking strip 13 moves downward, its inner side no longer blocks the sliding ball 11. Since the sliding ball 11 is no longer blocked by the annular blocking strip 13, and there are no other strong constraints between the plug 3 and the connection port 9, the plug 3 can slide out smoothly from the inside of the connection port 9 under the action of external force, realizing the quick disassembly and separation of the valve device 1 and the tank 4. The whole disassembly process is simple and convenient, without complicated tools and cumbersome operating steps.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable fire extinguisher valve interface, comprising a valve device (1), characterized in that: The valve device (1) is fixedly connected to the bottom of a socket cover (2), the bottom of the socket cover (2) is fixedly connected to a plug (3), the plug (3) is slidably connected to the outside of a quick-connect assembly, the bottom of the quick-connect assembly is fixedly connected to a tank body (4), the quick-connect assembly is provided with a sealing protection assembly on the outside of the quick-connect assembly, and the top of the sealing protection assembly is slidably connected to the bottom of the socket cover (2).

2. The easily detachable fire extinguisher valve interface according to claim 1, characterized in that: The plug (3) has an annular groove (7) on its outside, and an upper sealing ring (8) is fixedly connected to the bottom of the plug (3).

3. The easily detachable fire extinguisher valve interface according to claim 2, characterized in that: The quick-connect assembly includes a connector (9), the bottom of which is fixedly connected to the top of the tank (4), and the outside of the plug (3) is slidably connected to the inside of the connector (9).

4. The easily detachable fire extinguisher valve interface according to claim 3, characterized in that: The connection port (9) has multiple spherical grooves (10) inside, and each of the multiple spherical grooves (10) is slidably connected to a sliding ball (11). The external parts of the multiple sliding balls (11) are slidably connected to the inside of the annular groove (7). A spring (12) is fixedly connected to the upper side of the connection port (9), and an annular sealing strip (15) is fixedly connected to the top of the connection port (9).

5. The easily detachable fire extinguisher valve interface according to claim 4, characterized in that: The sealing protection assembly includes an annular blocking strip (13), the bottom of which is fixedly connected to the top of the spring (12). The inner side of the annular blocking strip (13) is in contact with the outer side of the plurality of sliding balls (11), and a protective cover (14) is fixedly connected to the outer side of the annular blocking strip (13).

6. The easily detachable fire extinguisher valve interface according to claim 5, characterized in that: The protective cover (14) is fixedly connected to two lower rotating bayonets (17) on the outside, and the protective cover (14) is fixedly connected to two snap-fit ​​strips b (18). The two snap-fit ​​strips b (18) are positioned on opposite sides of the two lower rotating bayonets (17). The top of the protective cover (14) is fixedly connected to a lower sealing ring (16), and the bottom of the lower sealing ring (16) is in contact with the top of the upper sealing ring (8).

7. The easily detachable fire extinguisher valve interface according to claim 6, characterized in that: The socket cover (2) has two upper rotating buckles (5) on its outside and two locking strips a (6) on its outside. The inner sides of the two upper rotating buckles (5) are respectively slidably connected to the outside of the two locking strips b (18).

8. The easily detachable fire extinguisher valve interface according to claim 7, characterized in that: The inner sides of the two lower rotating bayonets (17) are slidably connected to the outside of the two snap-fit ​​strips a (6).

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