Fire extinguishant bottle container valve

Abstract

The application discloses a fire extinguishing agent bottle container valve, which comprises a valve body, an input interface, an output interface, a valve core, a valve cover, a reset elastic member, an interruption release mechanism and a constant pressure opening valve; the input interface is arranged on the side of the valve body; the output interface is arranged on the side of the valve body; the valve core is movably arranged in the valve body to make the input interface and the output interface communicate or not communicate; the valve cover is arranged on the valve body; a gas cavity is formed between the valve cover and the valve core; one end of the reset elastic member is abutted against the valve cover; the other end of the reset elastic member is abutted against the valve core; the interruption release mechanism is arranged on the valve cover to release the gas in the gas cavity; the constant pressure opening valve is arranged on the side of the valve body and is located below the valve core; and the constant pressure opening valve is connected with the interruption release mechanism through a pressure gas pipe to release the gas in the gas cavity. The constant pressure stabilizing valve and the interruption release mechanism arranged on the valve body can make the fire extinguishing agent be stably and intermittently sprayed, and the fire extinguishing effect is improved.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology, and in particular to a valve for a fire extinguishing agent bottle container. Background Technology

[0002] Container valves are mainly used to seal gaseous extinguishing agents and can be opened to release the gaseous extinguishing agents in the event of a fire. Therefore, the design of container valves should meet the actual needs of the gaseous fire extinguishing system, that is, according to the specific conditions of the system setup, such as location and environmental conditions, so that it can work reliably for a long time.

[0003] In existing fire extinguishing systems on the market, the valves on the extinguishing agent storage cylinders are both manually and electrically operated. In the event of an emergency, due to various reasons, existing fire extinguishing systems with multiple storage cylinders often cannot guarantee that all cylinders will activate correctly. If the valve cannot be electrically operated, manual operation is required, resulting in a large number of manually operated cylinders, high risk, and low efficiency. To address this issue, some pneumatic storage cylinder valves have been disclosed in the prior art. However, these pneumatic storage cylinder valves exhibit unstable extinguishing agent release during use. In view of this, the inventors conducted in-depth research to address the aforementioned deficiencies in the prior art, leading to this invention. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the object of the present invention is to provide a fire extinguishing agent cylinder container valve, which, by incorporating a constant pressure regulating valve and an interrupted release mechanism on the valve body, enables the fire extinguishing agent to be released stably and intermittently, thereby improving the fire extinguishing effect.

[0005] To achieve the above objectives, the present invention proposes a fire extinguishing agent bottle container valve, comprising a valve body, an input interface, an output interface, a valve core, a valve cover, a reset elastic element, an interruption release mechanism, and a constant pressure opening valve;

[0006] The input interface is located on the side of the valve body; the output interface is located on the side of the valve body; the valve core is movably located within the valve body so that the input interface and the output interface can be connected or disconnected; the valve cover is located on the valve body, and an air chamber is formed between the valve cover and the valve core; one end of the reset elastic element abuts against the valve cover, and the other end of the reset elastic element abuts against the valve core; the interruption release mechanism is located on the valve cover to release the gas in the air chamber; the constant pressure opening valve is located on the side of the valve body and below the valve core; the constant pressure opening valve is connected to the interruption release mechanism through a pressurized air pipe to release the gas in the air chamber.

[0007] Furthermore, the input interface is connected to the pressure reducing and regulating valve.

[0008] Furthermore, the pressure reducing and stabilizing valve includes a pressure stabilizing valve housing, a fixing component, a pressure stabilizing elastic component, and a moving component; the fixing component includes a fixing ring and a fixing post, the fixing ring is disposed on the inner side wall of the pressure stabilizing valve housing, a first vent hole is provided in the fixing ring, one end of the fixing post is fixedly connected to the fixing ring, and the other end of the fixing post forms a plug; one end of the pressure stabilizing elastic component is disposed on the fixing ring, and the other end of the pressure stabilizing elastic component is disposed on one side of the moving component, the moving component is movably disposed in the pressure stabilizing valve housing, a second vent hole is provided in the moving component for inserting the plug, and a vent passage is formed between the second vent hole and the outer side of the plug.

[0009] Furthermore, a first limiting step is provided inside the pressure regulating valve housing, and the end of the moving part near the pressure regulating elastic element forms a limiting block that abuts against the first limiting step.

[0010] Furthermore, a pressure-bearing surface is formed inside the limiting block.

[0011] Furthermore, a second limiting step is provided inside the pressure regulating valve housing, and one side of the fixing ring abuts against the second limiting step.

[0012] Furthermore, it also includes a receiving component, which is connected to the pressure regulating valve housing, with the end of the receiving component abutting against the other side of the fixing ring.

[0013] Furthermore, a sealing ring mounting groove is provided on the outer wall of the fixing ring.

[0014] Furthermore, the inner diameter of the plug gradually decreases from near the retaining ring to far away from the retaining ring, so that the end of the plug forms an arc surface.

[0015] Furthermore, it also includes a left connector, one end of which is connected to the left side of the pressure regulating valve housing, and the other end of which forms a left connecting thread for connection with the pipe body.

[0016] Furthermore, it also includes a right connector, one end of which is connected to the right side of the receiving part, and the other end of which forms a right connection thread for connection with the valve body.

[0017] Furthermore, a one-way valve is installed at the connection point between the right connector and the receiving component.

[0018] Furthermore, the pressure-stabilizing elastic element is a compression spring.

[0019] Furthermore, a core groove is formed on the upper part of the valve core for the end of the reset elastic element to be inserted, and a guide screw is provided on the lower part of the valve core. A guide hole is formed inside the guide screw, and the guide hole is connected to the air chamber through the core groove.

[0020] Furthermore, a valve sealing seat is formed inside the valve body; the lower part of the valve core abuts against the valve sealing seat, and the side of the flow guide screw abuts against the inner side of the valve sealing seat.

[0021] Furthermore, a gasket is provided between the lower part of the valve core and the guide screw, and a first sealing ring is provided between the gasket and the valve sealing seat.

[0022] Furthermore, a main sealing gasket is provided at the lower part of the valve core, and the inner side of the main sealing gasket abuts against the gasket; a first mating block is provided on the gasket, and a second mating block that mates with the first mating block is provided on the main sealing gasket.

[0023] Furthermore, a raised ring is provided at the upper end of the valve sealing seat, and the outer side of the main sealing gasket abuts against the raised ring.

[0024] Furthermore, it also includes a siphon tube, which is installed inside the valve body. A lower gas channel is formed between the outer wall of the siphon tube and the inner wall of the valve body, and the siphon tube extends into the extinguishing agent bottle.

[0025] Furthermore, the siphon tube rests against the bottom of the valve sealing seat, and a second sealing ring is provided between the siphon tube and the bottom of the valve sealing seat.

[0026] Furthermore, the interruption release mechanism includes an actuator, an interruption valve seat, an interruption valve core, and an interruption elastic element. The actuator is mounted on the valve cover, and a pressure rod is movably mounted inside the actuator. A pressure channel is provided on the upper part of the actuator, one end of which is used to connect to a pressure pipe, and the other end of which is located at the end of the pressure rod. A venting channel is provided at the lower part of the actuator. The interruption valve seat is mounted on the valve cover, and a pressure relief hole is provided on the side of the interruption valve seat. The interruption valve core is movably mounted inside the interruption valve seat so that the pressure relief hole is located on the upper or lower part of the interruption valve core. The interruption valve core is connected to the pressure rod and is moved by the pressure rod. One end of the interruption elastic element abuts against the interruption valve core, and the other end of the interruption elastic element abuts against the interruption valve seat.

[0027] Furthermore, a pipe connector for connecting to the pressurized air pipe is provided on the side of the starter.

[0028] Furthermore, a manual start device is provided at the end of the starter.

[0029] Furthermore, the interrupt valve core includes a core body and an upper core rod. The side of the core body is disposed on the inner wall of the interrupt valve seat, and the upper core rod is fixedly connected to the upper end of the core body. The upper core rod is connected to the lower end of the pressure rod.

[0030] Furthermore, a third sealing ring is provided on the side of the core.

[0031] Furthermore, the interrupt valve core also includes a lower core rod, which is fixedly connected to the lower end of the core body; a clearance hole is provided at the bottom of the interrupt valve seat for the lower core rod to be inserted.

[0032] Furthermore, the interrupt valve seat is detachably mounted on the valve cover, and a fourth sealing ring is provided at the connection between the interrupt valve seat and the valve cover.

[0033] Furthermore, a constant pressure opening valve is installed on the side of the valve body, and the pressurized air pipe is connected to the constant pressure opening valve.

[0034] Furthermore, the constant pressure opening valve includes a first constant pressure connector, a second constant pressure connector, a constant pressure core, and a constant pressure elastic element; the first constant pressure connector is disposed on the side of the valve body, and a first constant pressure air passage is formed inside the first constant pressure connector; the second constant pressure connector is disposed on the first constant pressure connector, and a second constant pressure air passage communicating with the first constant pressure air passage is formed inside the second constant pressure connector; the constant pressure core is movably disposed inside the first constant pressure connector and the second constant pressure connector; one end of the constant pressure core is connected to the constant pressure elastic element, and the other end of the constant pressure elastic element abuts against the second constant pressure connector; the constant pressure elastic element drives the constant pressure core to abut against the first constant pressure air passage.

[0035] Furthermore, the reset elastic element is sleeved on the outside of the interrupt valve seat.

[0036] Furthermore, a pressure gauge connector is provided on the side of the valve body. The pressure gauge connector includes a housing, a sealing core, and a sealing elastic element. A sealing channel is formed inside the housing, which includes a cylindrical section, a frustum section, a protruding section, and a connecting section. One end of the frustum section is connected to the cylindrical section, and the inner diameter of the frustum section gradually decreases from the direction close to the cylindrical section to the direction far away from the cylindrical section. One end of the protruding section is connected to the other end of the frustum section, and the connecting section is connected to the other end of the protruding section. The sealing core includes a sealing seat and a sealing head. The sealing seat is movably disposed inside the cylindrical section, and an air passage is formed inside the sealing seat. The sealing head is fixedly connected to the sealing seat, and a fifth sealing ring is provided on the side of the sealing head for abutting against the side of the frustum section. A trigger rod is formed at the end of the sealing head, and the trigger rod protrudes from the frustum section and is located inside the protruding section. One end of the sealing elastic element is connected to the end of the sealing seat, and the other end of the sealing elastic element is used to connect to the valve body to keep the sealing elastic element in a compressed state.

[0037] Furthermore, the air passage includes a horizontal air passage and multiple vertical air passages, with the ends of the multiple vertical air passages connected to the horizontal air passage.

[0038] Furthermore, the connection point between the horizontal and vertical air passages forms a pressure surface.

[0039] Furthermore, the longitudinal section of the pressure surface is V-shaped.

[0040] Furthermore, a connection port is provided on the side of the valve body, and a first internal connection thread is provided on the inner side of the connection port; an external connection thread is provided on the outer side of the outer shell to connect with the first internal connection thread.

[0041] Furthermore, an outer abutment surface is provided on the outer side of the outer casing to abut against the outer side of the valve body.

[0042] Furthermore, a sixth sealing ring is provided between the outer abutment surface and the valve body.

[0043] Furthermore, a limiting groove is provided on the inner side of the connection port for connecting the end of the sealing elastic element.

[0044] Furthermore, a second internal connecting thread is provided on the inner side of the connecting section for connection with a pressure gauge.

[0045] Furthermore, the sealing elastic element is a compression spring.

[0046] With the above structure, the fire extinguishing agent bottle container valve of the present invention has at least the following beneficial effects:

[0047] First, during use, nitrogen gas is supplied to the valve body through the input interface. The nitrogen mixes with the extinguishing agent to generate extinguishing gas. This extinguishing gas passes through a constant-pressure opening valve and a pressurized gas pipe into the interruption release mechanism. The interruption release mechanism releases the gas in the gas chamber, causing the valve core to move upwards. After the valve core moves upwards, the extinguishing gas in the extinguishing agent cylinder is output from the output interface, thus extinguishing the fire. As the extinguishing gas in the extinguishing agent cylinder is continuously released, when the gas pressure drops, the constant-pressure opening valve closes, preventing the extinguishing gas from entering the interruption release mechanism. At this time, the gas in the gas chamber gradually replenishes, causing the valve core to move downwards. After the valve core moves downwards, the extinguishing gas will not be output from the output interface, thus achieving interruption closure. Therefore, this invention, by incorporating a constant-pressure stabilizing valve and an interruption release mechanism on the valve body, enables the extinguishing agent to be released stably and intermittently, improving the fire extinguishing effect.

[0048] Second, by setting up a pressure-reducing and stabilizing valve, one end of the valve is connected to the tube of the nitrogen-driven cylinder assembly, and the other end is connected to the input interface. When nitrogen is being supplied from the nitrogen-driven cylinder assembly, the initial pressure is high. At this time, the moving part moves closer to the fixed ring under the action of nitrogen, causing the plug to insert into the second vent hole. Thus, the venting channel formed between the second vent hole and the outside of the plug is small, thereby reducing the nitrogen output when the pressure is high. As nitrogen is continuously supplied, the nitrogen pressure in the nitrogen-driven cylinder assembly decreases. At this time, the moving part moves away from the fixed ring, causing the plug to gradually move away from the second vent hole. This gradually increases the venting channel, thereby increasing the nitrogen output when the pressure is low. Therefore, this invention can provide relatively stable nitrogen supply.

[0049] Third, by setting a first limiting step, during use, the limiting block at the end of the moving part abuts against the first limiting step under the action of the pressure stabilizing elastic element, thereby realizing that when the pressure decreases, the gas passage increases, and nitrogen is transported more stably. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the structure of the fire extinguishing agent bottle container valve according to an embodiment of the present invention;

[0051] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0052] Figure 3This is a schematic diagram of the structure of the fire extinguishing agent bottle container valve from another angle according to an embodiment of the present invention;

[0053] Figure 4 This is a schematic diagram showing the connection between the constant pressure opening valve and the interruption release mechanism through the pressurized air pipe according to an embodiment of the present invention;

[0054] Figure 5 This is a schematic diagram of the interruption release mechanism according to an embodiment of the present invention;

[0055] Figure 6 for Figure 4 A magnified view of a portion of the image;

[0056] Figure 7 This is a schematic diagram of a pressure reducing and regulating valve with a large air passage according to an embodiment of the present invention;

[0057] Figure 8 This is a schematic diagram of the structure of a pressure reducing and regulating valve with a smaller gas passage according to an embodiment of the present invention;

[0058] Figure 9 for Figure 8 A magnified view of a portion of the image;

[0059] Figure 10 This is a schematic diagram of the structure of a pressure gauge connector according to an embodiment of the present invention;

[0060] Figure 11 This is a schematic diagram of another state of the pressure gauge connector according to an embodiment of the present invention;

[0061] Figure 12 This is a schematic diagram of the structure of the pressure gauge connector fixed on the valve body according to an embodiment of the present invention.

[0062] Label Explanation

[0063] Valve body 1, valve sealing seat 11, convex ring 111, siphon tube 12, lower air passage 121, pressure gauge connector 13, outer shell 131, sealing passage 1311, cylindrical section 13111, frustum section 13112, protruding section 13113, connecting section 13114, sealing core 132, sealing seat 1321, air passage 13211, sealing head 1322, trigger rod 13221, sealing elastic element 133, input interface 2, output interface 3, valve core 4, core groove 41, guide screw 42, guide hole 421, gasket 43, main sealing gasket 44, valve cover 5, air chamber 51, reset elastic element 6, interruption release mechanism 7, starter 71, pressure rod 711, pressure passage 712, venting passage 713, air pipe connector 714, manual start device 715, interruption valve seat 72. Pressure relief hole 721, clearance hole 722, interruption valve core 73, core body 731, upper core rod 732, lower core rod 733, interruption elastic element 74, constant pressure opening valve 8, pressurizing air pipe 81, first constant pressure connector 82, first constant pressure air passage 821, second constant pressure connector 83, second constant pressure air passage 831, constant pressure core 84, constant pressure elastic element 85, pressure reducing and stabilizing valve 9, pressure stabilizing valve shell 91, first limiting step 911, second limiting step 912, fixing element 92, fixing ring 921, first air passage hole 9211, fixing post 922, plug 9221, arc surface 92211, pressure stabilizing elastic element 93, moving element 94, second air passage hole 941, air passage 942, limiting block 943, pressure receiving surface 9431, receiving element 95, left connector 96, right connector 97, one-way valve 98. Detailed Implementation

[0064] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0065] like Figures 1 to 12 As shown, a fire extinguishing agent bottle container valve of the present invention includes a valve body 1, an input interface 2, an output interface 3, a valve core 4, a valve cover 5, a reset elastic element 6, an interruption release mechanism 7, and a constant pressure opening valve 8. The input interface 2 is located on the side of the valve body 1; the output interface 3 is located on the side of the valve body 1; the valve core 4 is movably located inside the valve body 1 so that the input interface 2 and the output interface 3 can be connected or disconnected; the valve cover 5 is located on the valve body 1, and a gas chamber 51 is formed between the valve cover 5 and the valve core 4; one end of the reset elastic element 6 abuts against the valve cover 5, and the other end of the reset elastic element 6 abuts against the valve core 4; the interruption release mechanism 7 is located on the valve cover 5 to release the gas in the gas chamber 51; the constant pressure opening valve 8 is located on the side of the valve body 1 and below the valve core 4; the constant pressure opening valve 8 is connected to the interruption release mechanism 7 through a pressurized gas pipe 81 to release the gas in the gas chamber 51.

[0066] Thus, the fire extinguishing agent bottle container valve of the present invention, in use, delivers nitrogen gas into the valve body 1 through the input interface 2. The nitrogen gas mixes with the fire extinguishing agent to generate fire extinguishing gas. This fire extinguishing gas enters the interruption release mechanism 7 through the constant pressure opening valve 8 and the pressurized gas pipe 81. The interruption release mechanism 7 releases the gas in the gas chamber 51, causing the valve core 4 to move upward. After the valve core 4 moves upward, the fire extinguishing gas in the fire extinguishing agent bottle is output from the output interface 3, thereby extinguishing the fire source. As the fire extinguishing gas in the fire extinguishing agent bottle is continuously released, when the gas pressure of the fire extinguishing gas drops, the constant pressure opening valve 8 closes, preventing the fire extinguishing gas from entering the interruption release mechanism 7 through the constant pressure opening valve 8. At this time, the gas in the gas chamber 51 is gradually replenished, causing the valve core 4 to move downward. After the valve core 4 moves downward, the fire extinguishing gas will not be output from the output interface 3, thus achieving interruption closure. Therefore, the present invention, by setting a constant pressure stabilizing valve and an interruption release mechanism 7 on the valve body 1, enables the fire extinguishing agent to be released stably and intermittently, improving the fire extinguishing effect.

[0067] Optionally, the input interface 2 is connected to the pressure reducing and regulating valve 9. The pressure reducing and regulating valve 9 includes a regulating valve housing 91, a fixing member 92, a pressure-regulating elastic member 93, and a moving member 94. The fixing member 92 includes a fixing ring 921 and a fixing post 922. The fixing ring 921 is disposed on the inner wall of the regulating valve housing 91, and a first vent hole 9211 is provided within the fixing ring 921. One end of the fixing post 922 is fixedly connected to the fixing ring 921, and the other end of the fixing post 922 forms a plug 9221. One end of the pressure-regulating elastic member 93 is disposed on the fixing ring 921, and the other end of the pressure-regulating elastic member 93 is disposed on one side of the moving member 94. The moving member 94 is movably disposed within the regulating valve housing 91, and a second vent hole 941 is provided within the moving member 94 for the plug 9221 to be inserted into. A vent passage 942 is formed between the second vent hole 941 and the outer side of the plug 9221.

[0068] By setting a pressure-reducing and stabilizing valve 9, one end of the valve is connected to the tube of the nitrogen-driven cylinder assembly, and the other end is connected to the input interface 2. When nitrogen is being supplied from the nitrogen-driven cylinder assembly, the initial pressure is high. At this time, the moving part 94 moves closer to the fixed ring 921 under the action of nitrogen, causing the plug 9221 to insert into the second vent hole 941. Thus, the venting channel 942 formed between the second vent hole 941 and the outside of the plug 9221 is smaller, thereby reducing the nitrogen output when the pressure is high. As nitrogen is continuously supplied, the nitrogen pressure in the nitrogen-driven cylinder assembly decreases. At this time, the moving part 94 moves away from the fixed ring 921, causing the plug 9221 to gradually move away from the second vent hole 941. This gradually enlarges the venting channel 942, thereby increasing the nitrogen output when the pressure is low. Therefore, this invention can provide relatively stable nitrogen supply.

[0069] By stably supplying nitrogen, the release of extinguishing gas becomes more stable. The pressure reducing and stabilizing valve 9, together with the constant pressure stabilizing valve and the interrupted release mechanism 7, enables the extinguishing agent to be released stably and intermittently, allowing the extinguishing agent to be released to the designated fire source location, resulting in a better fire extinguishing effect.

[0070] In this example, a first limiting step 911 is provided inside the pressure regulating valve housing 91, and a limiting block 943 abuts against the first limiting step 911 at the end of the moving member 94 near the pressure regulating elastic member 93. By providing the first limiting step 911, during use, the limiting block 943 at the end of the moving member 94 abuts against the first limiting step 911 under the action of the pressure regulating elastic member 93, thereby increasing the gas passage 942 when the pressure decreases, and achieving a more stable delivery of nitrogen.

[0071] Furthermore, a pressure-receiving surface 9431 is formed inside the limiting block 943. By setting the pressure-receiving surface 9431, when the nitrogen pressure delivered by the nitrogen-driven cylinder group is relatively high, the nitrogen will act on the pressure-receiving surface 9431 during the nitrogen delivery process. At this time, the nitrogen will push the moving part 94 to move. After the moving part 94 moves, the gas passage 942 will become smaller, thereby making the nitrogen delivery more stable.

[0072] As an example, a second limiting step 912 is provided inside the pressure regulating valve housing 91, and one side of the fixing ring 921 abuts against the second limiting step 912. By providing the second limiting step 912, it is convenient to place the fixing ring 921 inside the pressure regulating valve housing 91, so that one end of the pressure regulating elastic element 93 abuts against the fixing ring 921, and the other end of the pressure regulating elastic element 93 abuts against the limiting block 943, wherein the pressure regulating elastic element 93 is preferably a compression spring.

[0073] This example also includes a receiving component 95, which is connected to the pressure regulating valve housing 91, with one end of the receiving component 95 abutting against the other side of the retaining ring 921. The retaining ring 921 has a sealing ring mounting groove on its outer wall.

[0074] By providing a receiving component 95, after the receiving component 95 is connected to the pressure regulating valve housing 91, the end of the receiving component 95 abuts against the fixing ring 921, thereby effectively preventing the fixing ring 921 from shifting and firmly confining the fixing ring 921 within the pressure regulating valve housing 91. A sealing ring can be placed in the sealing ring mounting groove to prevent nitrogen leakage during nitrogen delivery, resulting in stronger overall sealing.

[0075] In this example, the inner diameter of the plug 9221 gradually decreases from near the retaining ring 921 to far away from the retaining ring 921, so that the end of the plug 9221 forms an arc surface 92211. During nitrogen delivery, the nitrogen moves along this arc surface 92211, thereby reducing the impact of nitrogen on the plug 9221 and enabling rapid nitrogen delivery. At the same time, when the moving part 94 moves, it can effectively change the size of the gas passage 942, resulting in better pressure reduction and stabilization.

[0076] Furthermore, it also includes a left connector 96, one end of which is connected to the left side of the pressure regulating valve housing 91, and the other end of which forms a left connecting thread for connection with the pipe body. It also includes a right connector 97, one end of which is connected to the right side of the receiving member 95, and the other end of which forms a right connecting thread for connection with the valve body 1.

[0077] By providing a left connector 96, the left connecting thread of the left connector 96 facilitates connection with the pipe body. By providing a right connector 97, the right connecting thread of the right connector 97 facilitates connection with the valve body 1 of the container valve, which is located on the extinguishing agent cylinder, thereby facilitating the delivery of nitrogen gas into the extinguishing agent cylinder.

[0078] In this example, a one-way valve 98 is installed at the connection point between the right connector 97 and the receiving part 95. By installing the one-way valve 98, backflow of the extinguishing agent can be prevented, ensuring the one-way flow of the extinguishing agent. The one-way valve 98 is a common type of one-way valve in the prior art, and will not be described in detail here. This invention, by installing a pressure-reducing and stabilizing valve 9, can stabilize the nitrogen pressure from 4-15 MPa to 2.5-3 MPa when nitrogen is being delivered into the liquid extinguishing agent cylinder, maintaining a stable nitrogen delivery.

[0079] Optionally, the upper part of the valve core 4 forms a core groove 41 for the end of the reset elastic element 6 to be inserted, and the lower part of the valve core 4 is provided with a guide screw 42, and a guide hole 421 is formed in the guide screw 42. The guide hole 421 communicates with the air chamber 51 through the core groove 41.

[0080] After the constant pressure opening valve 8 is closed, the air pressure in the air chamber 51 is less than the air pressure of the extinguishing gas in the extinguishing agent bottle. The extinguishing gas in the extinguishing agent bottle slowly enters the air chamber 51 through the guide hole 421 and the core groove 41, causing the air pressure in the air chamber 51 to slowly increase, thereby pushing the valve core 4 to move down, so that the input interface 2 is not connected to the output interface 3, thereby interrupting the release of the extinguishing gas.

[0081] In this example, the inner diameter of the guide hole 421 is small. Therefore, when the gas in the gas chamber 51 is released to the outside, a small amount of extinguishing gas in the extinguishing agent bottle slowly enters the gas chamber 51, while most of the extinguishing gas is discharged from the output port 3.

[0082] Furthermore, a valve sealing seat 11 is formed inside the valve body 1; the lower part of the valve core 4 abuts against the valve sealing seat 11, and the side of the guide screw 42 abuts against the inner side of the valve sealing seat 11. By setting the valve sealing seat 11, the valve core 4 abuts against the valve sealing seat 11 under the action of the reset elastic member 6, thereby closing the output interface 3.

[0083] Furthermore, a gasket 43 is provided between the lower part of the valve core 4 and the guide screw 42, and a first sealing ring is provided between the gasket 43 and the valve sealing seat 11. By providing the gasket 43 and the first sealing ring, the fire extinguishing gas in the valve body 1 can be effectively prevented from being output from the output port 3 after closing.

[0084] In this example, a main sealing gasket 44 is provided at the lower part of the valve core 4, and the inner side of the main sealing gasket 44 abuts against the gasket 43. A first mating block is provided on the gasket 43, and a second mating block that cooperates with the first mating block is provided on the main sealing gasket 44. By providing the main sealing gasket 44, the main sealing gasket 44 is firmly fixed to the gasket 43 through the first and second mating blocks, thereby further preventing the fire extinguishing gas in the valve body 1 from being output from the output port 3 after closing.

[0085] The valve sealing seat 11 has a raised ring 111 at the upper end, and the outer side of the main sealing gasket 44 abuts against the raised ring 111. After the valve core 4 abuts against the valve sealing seat 11 under the action of the reset elastic element 6, the outer side of the main sealing gasket 44 abuts against the raised ring 111. The main sealing gasket 44 is squeezed, which further prevents the fire extinguishing gas in the valve body 1 from being output from the output port 3 after closing.

[0086] This example also includes a siphon tube 12, which is disposed inside the valve body 1. A lower gas passage 121 is formed between the outer wall of the siphon tube 12 and the inner wall of the valve body 1, and the siphon tube 12 extends into the extinguishing agent bottle. By setting the siphon tube 12, nitrogen gas enters the extinguishing agent bottle along the lower gas passage 121, mixes thoroughly with the extinguishing agent, and improves the extinguishing effect.

[0087] Furthermore, the siphon tube 12 abuts against the bottom of the valve sealing seat 11, and a second sealing ring is provided between the siphon tube 12 and the bottom of the valve sealing seat 11. By sealing the end of the siphon tube 12, the input interface 2 and the output interface 3 are separated by the siphon tube 12, which facilitates the output of the extinguishing gas formed after the extinguishing agent and nitrogen are fully mixed.

[0088] Optionally, the interruption release mechanism 7 includes an actuator 71, an interruption valve seat 72, an interruption valve core 73, and an interruption elastic element 74. The actuator 71 is mounted on the valve cover 5, and a pressure rod 711 is movably mounted inside the actuator 71. A pressure channel 712 is provided on the upper part of the actuator 71, one end of which is connected to a pressure pipe 81, and the other end of which is located at the end of the pressure rod 711. A venting channel 713 is provided at the lower part of the actuator 71. The interruption valve seat 72 is mounted on the valve cover 5, and a pressure relief hole 721 is provided on the side of the interruption valve seat 72. The interruption valve core 73 is movably mounted inside the interruption valve seat 72 so that the pressure relief hole 721 is located on the upper or lower part of the interruption valve core 73. The interruption valve core 73 is connected to the pressure rod 711 and is moved by the pressure rod 711. One end of the interruption elastic element 74 abuts against the interruption valve core 73, and the other end of the interruption elastic element 74 abuts against the interruption valve seat 72.

[0089] In use, extinguishing gas is introduced into the pressurization channel 712 of the starter 71. This extinguishing gas pressurizes the pressurization rod 711, causing it to move downwards and simultaneously drive the interruption valve core 73 downwards. After the interruption valve core 73 moves downwards and is positioned below the pressure relief hole 721, the gas in the gas chamber 51 is output to the outside through the pressure relief hole 721 and the venting channel 713, thereby reducing the pressure of the gas in the gas chamber 51. The valve core 4 in the valve body 1 rises, allowing the extinguishing gas in the extinguishing agent bottle to be released through the output port 3. When the extinguishing gas pressure is insufficient, the pressurization rod 711 rises under the action of the interruption elastic element 74 and is positioned above the pressure relief hole 721. At this time, the gas in the gas chamber 51 will not be output from the pressure relief hole 721. As the gas in the gas chamber 51 is gradually replenished, the valve core 4 in the valve body 1 descends, thereby stopping the release of the extinguishing gas. Therefore, this invention releases the extinguishing gas when the gas pressure is high, and can interrupt the release when the gas pressure is insufficient, thereby making the extinguishing gas release process more stable, achieving high-intensity fire extinguishing at the fire source location, and having a good fire extinguishing effect.

[0090] Furthermore, the starter 71 is provided with a pipe connector 714 on its side, which connects to the pressurizing pipe 81. By providing the pipe connector 714, during installation, the pipe connector 714 can be connected to one end of the pressurizing pipe 81, while the other end of the pressurizing pipe 81 can be connected to the valve body 1. This allows a small portion of the gas inside the valve body 1 to be transported through the pressurizing pipe 81 to the pressurizing channel 712, so that the pressurizing rod 711 can be pressurized to achieve pneumatic opening.

[0091] In this example, a manual start device 715 is provided at the end of the starter 71. The manual start device 715 includes a safety device and a button. By providing the manual start device 715, when there is no gas or the gas pressure is insufficient and emergency fire extinguishing needs to be started, the safety device can be removed and the button can be pressed down to lower the pressure rod 711 and achieve manual activation.

[0092] Furthermore, the interruption valve core 73 includes a core body 731 and an upper core rod 732. The side of the core body 731 is disposed on the inner wall of the interruption valve seat 72, and the upper core rod 732 is fixedly connected to the upper end of the core body 731. The upper core rod 732 is connected to the lower end of the pressure rod 711. A third sealing ring is provided on the side of the core body 731. The valve cover 5 is provided with a through hole for the upper core rod 732 to move. The diameter of the upper core rod 732 is smaller than the through hole of the valve cover 5, so that the gas in the gas chamber 51 is output through the through hole and the pressure relief hole 721.

[0093] When the interrupt valve core 73 moves, the core body 731 moves up and down along the inner wall of the interrupt valve seat 72. When the core body 731 moves above the pressure relief hole 721, the gas in the gas chamber 51 will not be output from the pressure relief hole 721. However, when the core body 731 moves below the pressure relief hole 721, the gas in the gas chamber 51 is output from the pressure relief hole 721, thereby reducing the pressure in the gas chamber 51. This causes the valve core 4 in the valve body 1 to rise, resulting in the release of extinguishing gas from the extinguishing agent bottle. By providing a third sealing ring on the side of the core body 731, when the core body 731 moves above the pressure relief hole 721, the third sealing ring can effectively prevent gas leakage from the gas chamber 51, resulting in a good sealing effect.

[0094] In this example, the interrupt valve core 73 also includes a lower core rod 733, which is fixedly connected to the lower end of the core body 731. The bottom of the interrupt valve seat 72 is provided with a clearance hole 722 for the lower core rod 733 to be inserted. The interrupt elastic element 74 is sleeved on the lower core rod 733, thereby limiting the interrupt elastic element 74 and preventing the interrupt elastic element 74 from bending during compression. When the core body 731 moves below the pressure relief hole 721, the lower core rod 733 is inserted into the clearance hole 722.

[0095] Furthermore, the interruption valve seat 72 is detachably mounted on the valve cover 5, and a fourth sealing ring is provided at the connection between the interruption valve seat 72 and the valve cover 5. For example, the interruption valve seat 72 can be threaded to the valve cover 5, allowing it to be detachably mounted on the valve cover 5. By providing the fourth sealing ring, gas leakage from the connection between the interruption valve seat 72 and the valve cover 5 is prevented.

[0096] In this example, the reset elastic element 6 is sleeved on the outside of the interrupt valve seat 72. This makes the reset elastic element 6 more stable during compression and prevents the reset elastic element 6 from warping.

[0097] In some examples, a constant pressure opening valve 8 is provided on the side of the valve body 1, and a pressurizing air pipe 81 is connected to the constant pressure opening valve 8. The constant pressure opening valve 8 includes a first constant pressure connector 82, a second constant pressure connector 83, a constant pressure core 84, and a constant pressure elastic element 85. The first constant pressure connector 82 is located on the side of the valve body 1, and a first constant pressure air passage 821 is formed within the first constant pressure connector 82. The second constant pressure connector 83 is located on the first constant pressure connector 82, and a second constant pressure air passage 831 communicating with the first constant pressure air passage 821 is formed within the second constant pressure connector 83. The constant pressure core 84 is movably disposed within the first constant pressure connector 82 and the second constant pressure connector 83. One end of the constant pressure core 84 is connected to the constant pressure elastic element 85, and the other end of the constant pressure elastic element 85 abuts against the second constant pressure connector 83. The constant pressure elastic element 85 drives the constant pressure core 84 to abut against the first constant pressure air passage 821.

[0098] By setting a constant-pressure opening valve 8, the extinguishing gas channel is ensured to open when the constant pressure is reached, keeping the extinguishing gas in a stable state throughout the entire discharge process. When the gas pressure inside the valve body 1 is high, the gas pressurizes the constant-pressure core 84, causing it to move and open the first constant-pressure gas passage 821. At this time, the gas inside the valve body 1 enters the pressurizing gas pipe 81 through the first constant-pressure gas passage 821 and the second constant-pressure gas passage 831, finally pressurizing the pressurizing rod 711. As the extinguishing agent is continuously discharged, the gas pressure inside the valve body 1 gradually decreases. When the gas pressure inside the valve body 1 is insufficient to push the constant-pressure core 84, the constant-pressure core 84 closes the first constant-pressure gas passage 821 under the action of the constant-pressure elastic element 85, thereby stopping the gas from entering the pressurizing gas pipe 81 and interrupting the discharge of the extinguishing agent.

[0099] Optionally, a pressure gauge connector 13 is provided on the side of the valve body 1. The pressure gauge connector 13 includes a housing 131, a sealing core 132, and a sealing elastic element 133. A sealing channel 1311 is formed inside the housing 131. The sealing channel 1311 includes a cylindrical section 13111, a frustum section 13112, a protruding section 13113, and a connecting section 13114. One end of the frustum section 13112 is connected to the cylindrical section 13111. The inner diameter of the frustum section 13112 gradually decreases from near the cylindrical section 13111 to away from the cylindrical section 13111. One end of the protruding section 13113 is connected to the other end of the frustum section 13112, and the connecting section 13114 is connected to the other end of the protruding section 13113. The sealing core 1... 32 includes a sealing seat 1321 and a sealing head 1322. The sealing seat 1321 is movably disposed within the cylindrical section 13111, and an air passage 13211 is formed within the sealing seat 1321. The sealing head 1322 is fixedly connected to the sealing seat 1321. A fifth sealing ring is provided on the side of the sealing head 1322 for abutting against the side of the frustum section 13112. A trigger rod 13221 is formed at the end of the sealing head 1322. The trigger rod 13221 protrudes from the frustum section 13112 and is located within the protruding section 13113. One end of the sealing elastic member 133 is connected to the end of the sealing seat 1321, and the other end of the sealing elastic member 133 is used to connect to the valve body 1 so that the sealing elastic member 133 is in a compressed state.

[0100] After connecting the outer shell 131 to the valve body 1, one end of the sealing elastic element 133 is connected to the valve body 1, and the other end of the sealing elastic element 133 is connected to the sealing seat 1321. The sealing elastic element 133 is in a compressed state, so that the fifth sealing ring is tightly pressed against the inner wall of the frustum section 13112. After the pressure gauge is installed in the connecting section 13114, the end of the pressure gauge presses the trigger rod 13221, so that the trigger rod 13221 and the sealing core 132 move towards the sealing elastic element 133, so that the fifth sealing ring is not pressed against the frustum section 13112. In this way, gas can enter the pressure gauge through the gas passage 13211, thereby realizing the pressure measurement of the pressure gauge.

[0101] After the pressure gauge is removed, the sealing core 132, under the action of the sealing elastic element 133 and the gas, causes the fifth sealing ring of the sealing core 132 to abut against the frustum section 13112, effectively preventing gas leakage and providing a good sealing effect. Because the inner diameter of the frustum section 13112 gradually decreases from near the cylindrical section 13111 to far away from the cylindrical section 13111, the fifth sealing ring, under the action of the sealing elastic element 133 and the gas, can tightly abut against the frustum section 13112, resulting in a good sealing effect.

[0102] Furthermore, the air passage 13211 includes a horizontal air passage and multiple vertical air passages, the ends of which are connected to the horizontal air passage. After the pressure gauge is installed in the connecting section 13114, the fifth sealing ring does not abut against the frustum section 13112. At this time, after the gas passes through the horizontal air passage and the multiple vertical air passages, the gap between the fifth sealing ring and the frustum section 13112 enters the pressure gauge, thereby causing the pressure gauge to display the pressure.

[0103] In some examples, the connection point between the horizontal and vertical air passages forms a pressure surface. The longitudinal section of this pressure surface is V-shaped.

[0104] After the pressure gauge is removed, the fifth sealing ring of the sealing core 132 abuts against the frustum section 13112 under the action of the sealing elastic element 133. At the same time, the gas pressure inside the valve body 1 is high, and the gas squeezes the pressure surface to further press the fifth sealing ring against the frustum section 13112, resulting in a better sealing effect.

[0105] Furthermore, a connection port is provided on the side of the valve body 1, and a first internal connection thread is provided on the inner side of the connection port; an external connection thread is provided on the outer side of the outer shell 131, which connects with the first internal connection thread. When the outer shell 131 is connected to the valve body 1, the outer shell 131 is rotated so that the external connection thread connects with the first internal connection thread, thereby firmly fixing the outer shell 131 to the valve body 1.

[0106] In this example, the outer side of the outer casing 131 is provided with an outer abutting surface that abuts against the outer side of the valve body 1. A sixth sealing ring is provided between the outer abutting surface and the valve body 1. When fixing the outer casing 131 to the valve body 1, rotating the outer casing 131 causes its outer abutting surface to abut against the outer side of the valve body 1, thus completing the installation of the outer casing 131. The sixth sealing ring between the outer abutting surface and the valve body 1 further improves the sealing performance.

[0107] Furthermore, a limiting groove is provided inside the connection port for the end of the sealing elastic element 133 to be connected. During installation, one end of the sealing elastic element 133 abuts against the limiting groove, and the other end of the sealing elastic element 133 abuts against the sealing seat 1321. The sealing elastic element 133 is in a compressed state, causing the fifth sealing ring of the sealing core 132 to abut against the frustum section 13112. Preferably, the sealing elastic element 133 is a compression spring.

[0108] In this example, the inner side of the connecting section 13114 is provided with a second internal connecting thread for connecting with the pressure gauge. A second external connecting thread that mates with the second internal connecting thread can be provided at the connecting end of the pressure gauge. Thus, when installing the pressure gauge, rotating the pressure gauge will cause the second external connecting thread to connect with the second internal connecting thread, so that the end of the pressure gauge applies pressure to the trigger rod 13221, thereby driving the trigger rod 13221 and the sealing core 132 to move.

[0109] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A fire extinguishant cylinder container valve characterized by: The valve comprises a valve body, an input interface, an output interface, a valve core, a valve cover, a reset elastic member, an interruption release mechanism and a constant pressure opening valve. The input interface is arranged on the side of the valve body. The output interface is arranged on the side of the valve body. The valve core is movably arranged in the valve body to make the input interface and the output interface communicate or not communicate. The valve cover is arranged on the valve body. The valve cover and the valve core form an air cavity. One end of the reset elastic member is abutted against the valve cover. The other end of the reset elastic member is abutted against the valve core. The interruption release mechanism is arranged on the valve cover to release the air in the air cavity. The constant pressure opening valve is arranged on the side of the valve body and below the valve core. The constant pressure opening valve is connected with the interruption release mechanism through a pressure applying pipe to release the air in the air cavity. The interruption release mechanism comprises a starter, an interruption valve seat, an interruption valve core and an interruption elastic member. The starter is arranged on the valve cover. A pressure applying rod is movably arranged in the starter. A pressure applying channel is arranged on the upper part of the starter. One end of the pressure applying channel is used to be connected with the pressure applying pipe. The other end of the pressure applying channel is located at the end of the pressure applying rod. A gas releasing channel is arranged on the lower part of the starter. The interruption valve seat is arranged on the valve cover. A pressure releasing hole is arranged on the side of the interruption valve seat. The interruption valve core is movably arranged in the interruption valve seat to make the pressure releasing hole be located on the upper part or the lower part of the interruption valve core. The interruption valve core is connected with the pressure applying rod and is driven by the pressure applying rod to move. One end of the interruption elastic member is abutted against the interruption valve core. The other end of the interruption elastic member is abutted against the interruption valve seat. The interruption valve core comprises a core body and an upper core rod. The core body is arranged on the inner side wall of the interruption valve seat. The upper core rod is fixedly connected with the upper end of the core body. The upper core rod is connected with the lower end of the pressure applying rod. The interruption valve core further comprises a lower core rod. The lower core rod is fixedly connected with the lower end of the core body. The bottom of the interruption valve seat is provided with a space hole for the lower core rod to insert. The constant pressure opening valve comprises a first constant pressure connector, a second constant pressure connector, a constant pressure core and a constant pressure elastic member. The first constant pressure connector is arranged on the side of the valve body. A first constant pressure air channel is formed in the first constant pressure connector. The second constant pressure connector is arranged on the first constant pressure connector. A second constant pressure air channel is formed in the second constant pressure connector and communicates with the first constant pressure air channel. The constant pressure core is movably arranged in the first constant pressure connector and the second constant pressure connector. The constant pressure core is connected with one end of the constant pressure elastic member. The other end of the constant pressure elastic member is abutted against the second constant pressure connector. The constant pressure elastic member drives the constant pressure core to abut against the first constant pressure air channel.

2. The fire extinguishant bottle container valve of claim 1 wherein: The input interface is connected with a pressure reducing and stabilizing valve.

3. The fire extinguishant bottle container valve of claim 2 wherein: The pressure reducing and stabilizing valve comprises a stabilizing valve shell, a fixing member, a stabilizing elastic member and a moving member. The fixing member comprises a fixing ring and a fixing column. The fixing ring is arranged on the inner side wall of the stabilizing valve shell. A first air passing hole is arranged in the fixing ring. One end of the fixing column is fixedly connected with the fixing ring. The other end of the fixing column forms a plug. One end of the stabilizing elastic member is arranged on the fixing ring. The other end of the stabilizing elastic member is arranged on one side of the moving member. The moving member is movably arranged in the stabilizing valve shell. A second air passing hole is arranged in the moving member and can be inserted by the plug. An air passing channel is formed between the second air passing hole and the outer side of the plug.

4. The fire extinguishant bottle container valve of claim 1 wherein: The upper part of the valve core forms a core groove for the end of the reset elastic member to insert. The lower part of the valve core is provided with a flow guide screw. A flow guide hole is formed in the flow guide screw. The flow guide hole communicates with the air cavity through the core groove.

5. The fire extinguishant bottle container valve of claim 4 wherein: The valve body is provided with a valve sealing seat. The lower part of the valve core is abutted against the valve sealing seat. The side of the flow guide screw is abutted against the inner side of the valve sealing seat.

6. The fire extinguishant bottle container valve of claim 1 wherein: The siphon is arranged in the valve body, and a lower gas passage is formed between the outer wall of the siphon and the inner wall of the valve body, and the siphon extends into the fire extinguishing agent bottle.

7. The fire extinguishant bottle container valve of claim 1 wherein: The pressure gauge joint is arranged on the side of the valve body, and comprises a shell, a sealing core and a sealing elastic element; a sealing passage is formed in the shell, and the sealing passage comprises a cylindrical section, a circular cone section, a protruding section and a connecting section; one end of the circular cone section is connected with the cylindrical section, and the circular cone section gradually decreases in inner diameter from the side close to the cylindrical section to the side far from the cylindrical section; one end of the protruding section is connected with the other end of the circular cone section, and the connecting section is connected with the other end of the protruding section; the sealing core comprises a sealing seat and a sealing head; the sealing seat is movably arranged in the cylindrical section, and an air passage is formed in the sealing seat; the sealing head is fixedly connected with the sealing seat, and a fifth sealing ring for abutting against the side of the circular cone section is arranged on the side of the sealing head; a trigger rod is formed at the end of the sealing head, and the trigger rod protrudes from the circular cone section and is located in the protruding section; one end of the sealing elastic element is connected with the end of the sealing seat, and the other end of the sealing elastic element is connected with the valve body so that the sealing elastic element is in a compressed state.

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