Isolation locking type fire extinguishing bottle locking device, fire extinguishing bottle and unlocking method of fire extinguishing bottle

Abstract

The invention discloses an isolation locking type fire extinguishing bottle locking device, a fire extinguishing bottle and an unlocking method of the fire extinguishing bottle. A detonating mechanism is arranged in a detonating mechanism mounting channel of a locking shell in the device, and a spring valve mechanism arranged in a locking mechanism mounting channel is used for blocking a fire extinguishing agent inlet channel and a fire extinguishing agent outlet channel in a fire extinguishing agent spraying channel; the lever lock assembly is arranged at the outlet end of the lock mechanism installation channel, a lock pin in the lever lock assembly is pressed against the end of the spring valve mechanism, a lock key shaft of a semicircular pin structure in the linkage lock assembly penetrates through a through hole in a double-lug base on a lock machine shell, and rotation of the lever lock assembly is limited through the lock key shaft. The linkage shaft located at the outlet end of the detonating mechanism installation channel abuts against the end of the piston. The problems that according to an existing fire extinguishing bottle locking machine, a piston shaft deforms due to the pressure generated by a high-pressure fire extinguishing agent, a fire extinguishing agent conveying channel cannot be normally opened, spraying of the fire extinguishing agent is affected, and the fire extinguishing efficiency of the fire extinguishing agent is reduced due to the fact that the fire extinguishing agent is polluted by comburent of an electric detonator are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to, but not limited to, the technical field of aircraft fire extinguishing system, in particular to a kind of isolated locking type fire bottle lock device, fire bottle and its unlocking method. BACKGROUND

[0002] The aircraft fire bottle is an important accessory of the aircraft fire extinguishing system, which is filled with fire extinguishing agent and pressurized by nitrogen. When a fire occurs on the aircraft, the fire extinguishing agent in the fire bottle is released quickly, which can effectively suppress the fire. Generally, the fire bottle is composed of a bottle body and a lock. The fire bottle lock, as a key device for controlling the output of fire extinguishing agent, directly affects the success of fire extinguishing. Under normal circumstances, the fire bottle lock needs to ensure that the bottle opening is sealed under the action of high-pressure gas in the bottle; when a fire occurs and the fire extinguishing agent needs to be sprayed out, the fire bottle lock should safely and reliably open the fire extinguishing agent delivery channel.

[0003] In the traditional fire bottle lock, the movement direction of the piston is not consistent with the direction of the high-pressure fire extinguishing agent in the fire bottle. When the fire bottle lock is in a closed state for a long time, the pressure generated by the high-pressure fire extinguishing agent will cause the piston shaft to deform, and the piston shaft may be stuck when it moves, causing the fire extinguishing agent delivery channel to be unable to open normally, affecting the spraying of the fire extinguishing agent. The above-mentioned traditional fire bottle lock has poor reliability. In addition, the electric detonator used to trigger the opening of the fire bottle lock and the fire extinguishing agent delivery channel are not completely physically isolated, and the combustion products of the electric detonator may contaminate the fire extinguishing agent, thereby reducing the fire extinguishing efficiency of the fire extinguishing agent. SUMMARY

[0004] The purpose of the present application is to provide an isolated locking type fire bottle lock device, a fire bottle and an unlocking method to solve the problem that the traditional fire bottle lock causes the piston shaft to deform due to the pressure generated by the high-pressure fire extinguishing agent, thereby causing the fire extinguishing agent delivery channel to be unable to open normally and affecting the spraying of the fire extinguishing agent.

[0005] The technical solution of the present application is as follows: In a first aspect, the present application provides an isolated locking type fire bottle lock device, which includes a lock housing 11, an ignition mechanism and a spring valve mechanism 9 arranged inside the lock housing 11, and a linkage lock assembly and a lever lock assembly arranged outside the lock housing 11. The lock housing 11 has a fire extinguishing agent spraying channel, an ignition mechanism installation channel and a lock mechanism installation channel which are isolated from each other. The ignition mechanism installation channel is provided with an ignition mechanism, and the piston 4 of the ignition mechanism is located at the outlet position of the channel. The lock mechanism installation channel and the fire extinguishing agent inlet channel in the fire extinguishing agent spraying channel are coaxially arranged and connected. The spring valve mechanism 9 arranged inside the lock mechanism installation channel is used to block the fire extinguishing agent inlet channel and the fire extinguishing agent outlet channel in the fire extinguishing agent spraying channel. The lever lock assembly is arranged at the exit end of the lock mechanism mounting channel, and the internal lock pin is pressed against the end of the spring valve mechanism 9 for pressing the spring valve mechanism 9 in the locked position. One end of the lever lock assembly is a rotating end, and the other end is provided with a semicircular groove. The lock key shaft 6 arranged as a semicircular pin structure in the linkage lock assembly passes through the through hole of the double lug seat on the lock housing 11, and the lock key shaft 6 is clamped in the semicircular groove of the lever lock assembly to limit the rotation of the lever lock assembly. The linkage shaft 5 in the linkage lock assembly is located at the exit end of the detonating mechanism mounting channel and is pressed against the end of the piston 4.

[0006] The isolated locking type fire extinguishing bottle lock mechanism device drives the piston 4 to move outward when the detonating mechanism is detonated, pushes the linkage shaft 5 to rotate and then separates from the lever lock assembly, so that the lever lock assembly rotates as a whole under the spring force of the spring valve mechanism 9, drives the internal lock pin to release the spring valve mechanism 9, and makes the valve 12 in the spring valve mechanism 9 move axially along the lock mechanism mounting channel under the action of the fire extinguishing bottle gas until the fire extinguishing agent inlet channel is communicated with the fire extinguishing agent outlet channel.

[0007] Optionally, the lever lock assembly in the isolated locking type fire extinguishing bottle lock mechanism device described above includes a lever 7, a lever shaft 8, and a lock pin 19. The lever shaft 8 is fixedly installed through the lug seat outside the lock housing 11, one end of the lever 7 is installed through the lever shaft 8 for rotating as a whole around the lever shaft 8, the other end of the lever 7 is provided with a semicircular groove for clamping in the lock key shaft 6 of the linkage lock assembly and limiting the rotation thereof through the lock key shaft 6, and the lock pin 19 passes through the through hole in the middle of the lever 7, the outer end is fixedly connected through a nut, and the inner end is pressed against the end face of the spring valve mechanism 9 installed in the lock mechanism mounting channel for providing a locking force to the spring valve mechanism 9 when the lever 7 is limited in rotation through the lock key shaft 6.

[0008] Optionally, the spring valve mechanism 9 in the isolated locking type fire extinguishing bottle lock mechanism device described above includes a valve 12, a guide bushing 14, a pressure rod 17, and a spring 18. The pressure rod 17 with the annular boss at the upper portion is embedded and installed in the guide bushing 14, the spring 18 is installed in the annular cavity formed by the pressure rod 17 and the guide bushing 14, the spring 18 is located between the annular boss of the pressure rod 17 and the limiting end face at the bottom end of the guide bushing 14, and one end of the valve 12 extends into the bottom end of the guide bushing 14 and is threadedly connected with the connecting rod at the bottom of the pressure rod 17. The installation structure of the guide bushing 14, the pressure rod 17, the valve 12, and the spring 18 is integrally installed in the lock mechanism mounting channel, the pressure rod 17 is located at the end of the channel and is pressed and locked by the lock pin 19 of the lever lock assembly, so that the valve 12 is pressed and locked at the connection position of the lock mechanism mounting channel and the fire extinguishing agent inlet channel, and the fire extinguishing agent inlet channel and the outlet channel thereof are blocked.

[0009] Optionally, the spring valve mechanism 9 in the isolation locking type fire extinguishing bottle lock device as described above further comprises a buffer ring 13, a support ring 15 and a sealing ring 16; The support ring 15 and the sealing ring 16 at the top of the spring are also nested and installed in the annular cavity formed by the pressure rod 17 and the guide bushing 14; The bottom end of the guide bushing 14 is externally installed with the buffer ring 13, which provides a buffering effect when the valve 12 moves towards the side close to the guide bushing 14.

[0010] Optionally, the linkage lock assembly in the isolation locking type fire extinguishing bottle lock device as described above comprises a linkage shaft 5 and a lock key shaft 6 connected as an integral structure through a bottom plate; The linkage lock assembly is provided with the lock key shaft 6 in a half-round pin structure, which passes through the through hole in the double lug seat between the exit end of the lock mechanism installation channel and the detonation mechanism installation channel in the lock housing 11, and cooperates with the half-round groove at the other end of the lever 7 in the lever lock assembly to form a limiting form; The linkage lock assembly is used to make the lock key shaft 6 integrally connected on the bottom plate be clamped in the half-round groove at the other end of the lever 7 in the lever lock assembly when the linkage shaft 5 is pressed against the end of the piston 4 of the detonation mechanism installed in the detonation mechanism installation channel, so as to limit the rotation of the lever lock assembly, thereby making the lever lock assembly provide a locking effect on the spring valve mechanism 9.

[0011] Optionally, the detonation mechanism in the isolation locking type fire extinguishing bottle lock device as described above comprises an igniter 1, a contactor 2, an electric detonation tube 3 and a piston 4; The entrance end of the detonation mechanism installation channel is sequentially installed with the igniter 1, the contactor 2 and the electric detonation tube 3, and the exit end is installed with the piston 4; The detonation mechanism is used for the contactor 2 controlled by the igniter 1 to discharge at the tip, ignite the electric detonation tube 3, and generate high-pressure gas by the explosion of the electric detonation tube 3 to push the piston 4 to move towards the outside of the detonation mechanism installation channel, so as to push the linkage shaft 5 to drive the lock key shaft 6 to rotate synchronously, and release the locking effect on the lever lock assembly after the rotation of the lock key shaft 6 Optionally, in the locked state of the isolation locking type fire extinguishing bottle lock device as described above, the contact circumference of the lock key shaft 6 in the linkage shaft assembly with the half-round groove of the lever 7 in the lever lock assembly is not less than 2.5 mm; In the unlocked state of the fire extinguishing bottle lock device, the minimum gap between the lock key shaft 6 in the linkage shaft assembly and the half-round groove of the lever 7 in the lever lock assembly is not less than 0.4 mm.

[0012] In a second aspect, the application further provides a fire extinguishing bottle, wherein the fire extinguishing bottle is provided with the isolated and locked fire extinguishing bottle locking device according to any one of the above, and the detonation mechanism and the spring valve mechanism 9 in the isolated and locked fire extinguishing bottle locking device are physically isolated through the detonation mechanism installation channel and the lock mechanism installation channel, and the direction of the high-pressure fire extinguishing agent pressure in the fire extinguishing bottle on the valve 12 in the spring valve mechanism 9 in the locked state is consistent with the movement direction of the valve 12 in the unlocked state.

[0013] In a third aspect, the application further provides a method for unlocking a fire extinguishing bottle, wherein the method for unlocking the fire extinguishing bottle comprises the following steps: Step 1: When the isolated and locked fire extinguishing bottle locking device provided in the fire extinguishing bottle receives an unlocking instruction, the detonation mechanism starts to work, wherein the igniter 1 controls the tip of the contactor 2 to discharge, ignites the electric detonation tube 3, and the electric detonation tube 3 explodes to generate high-pressure gas to push the piston 4; Step 2: After the detonation mechanism detonates, the linkage lock assembly is driven to move, and the linkage shaft 5 and the lock key shaft 6 in the linkage lock assembly lose the contact locking in the semicircular groove at the other end of the lever 7 in the lever lock assembly, so that the lever lock assembly loses the locking effect on the spring valve mechanism 9; Step 3: After the lever lock assembly loses the locking effect on the spring valve mechanism 9, the pressure rod 17 drives the valve 12 to move in the guide bushing 14 under the action of the spring 18 and the high-pressure fire extinguishing agent pressure in the bottle, so as to realize the communication between the fire extinguishing agent inlet channel and the outlet channel thereof.

[0014] The application has the following beneficial effects: the application provides an isolated and locked fire extinguishing bottle locking device, a fire extinguishing bottle and a method for unlocking the fire extinguishing bottle, on the one hand, the lock key shaft is used to unlock the lever with a cover, so that the spring valve is popped up to guide the triggering of the fire extinguishing agent, the movement direction of the piston when it needs to be opened is consistent with the force direction of the high-pressure fire extinguishing agent in the bottle on the piston when it is in the closed state, the deformation of the piston under the pressure of the fire extinguishing agent in the fire extinguishing bottle is avoided, the piston is prevented from being stuck during movement, and the reliability of the locking device is improved; on the other hand, the design optimization is made for the problem that the traditional scheme in the application is that the booster tube and the fire extinguishing agent are in the same physical channel, and the gunpowder in the booster tube and the fire extinguishing agent are mixed after the booster tube is detonated, which may pollute the fire extinguishing agent. The structure form of the fire extinguishing bottle locking device is optimized, the electric detonation tube is physically isolated from the fire extinguishing agent in the fire extinguishing bottle, and the problem of pollution of the fire extinguishing agent by the electric detonation combustion is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to further understand the technical scheme of the application, and constitute a part of the specification, and are used together with the embodiments of the application to explain the technical scheme of the application, and do not constitute a limitation on the technical scheme of the application.

[0016] Figure 1This is a schematic diagram of a conventional fire extinguisher bottle locking device. Figure 1 Figure a is a cross-sectional view, and figure b is a side view; Figure 2 This is a schematic diagram of the overall structure of an isolation and locking type fire extinguisher bottle locking device provided in an embodiment of the present invention; Figure 3 for Figure 2 The cross-sectional view of the locking mechanism for the fire extinguisher bottle provided in the embodiment shown; Figure 4 for Figure 3 The schematic diagram illustrates the principle of lever unlocking by rotating the locking key shaft in the locking mechanism of the fire extinguisher bottle provided in the embodiment shown. Figure 4 Figure 'a' shows the lever in the closed position, and Figure 'b' shows the lever in the lever position. Figure 5 for Figure 3 The schematic diagram shows the structure of the spring-loaded valve mechanism in the locking device for fire extinguishers provided in the embodiment shown.

[0017] Explanation of reference numerals in the attached diagram: 1. Ignition device, 2. Contactor, 3. Electric detonator, 4. Piston, 5. Linkage shaft, 6. Locking key shaft, 7. Lever, 8. Lever shaft, 9. Spring valve mechanism, 10. Working nozzle, 11. Lock housing, 12. Valve, 13. Buffer ring, 14. Guide bushing, 15. Support ring, 16. Sealing ring, 17. Pressure rod, 18. Spring, 19. Locking pin. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0019] As explained in the background section, the fire extinguishing cylinder locking mechanism, as a key device controlling the output of the extinguishing agent on the fire extinguishing cylinder, directly affects the success of fire extinguishing. In traditional fire extinguishing cylinder locking mechanisms, the pressure generated by the high-pressure extinguishing agent can deform the piston shaft, causing the extinguishing agent transmission channel to fail to open properly, thus affecting the discharge of the extinguishing agent. Furthermore, the electric detonating cord used to trigger the opening of the fire extinguishing cylinder locking mechanism is not completely physically isolated from the extinguishing agent transmission channel, resulting in the possibility of the burning material from the electric detonating cord contaminating the extinguishing agent, thereby reducing the extinguishing efficiency of the extinguishing agent.

[0020] Specifically, such as Figure 1The existing fire extinguishing bottle locking device (application publication number: CN 109481869A) describes a device that, when a fire occurs, trigger connector G receives an ignition command, detonating tube F, and high-pressure gas pushes piston D with a cutter to move axially. The cutter on piston D cuts the annular thin wall at the end of siphon tube H, opening the passage for the fire extinguishing agent to be output from the fire extinguishing bottle. That is, the fire extinguishing agent flows from siphon tube H, through the annular groove on piston D with cutter, to the connector C, and reaches the fire location, thus achieving the fire extinguishing function. See the appendix for details. Figure 1 .

[0021] To address the aforementioned problems, this invention provides an isolation and locking type fire extinguisher bottle locking device, a fire extinguisher bottle, and an unlocking method thereof. By optimizing the structural form of the fire extinguisher bottle locking mechanism, the electric detonator is physically isolated from the extinguishing agent inside the fire extinguisher bottle, and the direction of the extinguishing agent pressure on the valve is coaxial with the direction of piston movement, thus preventing valve deformation and jamming during operation and improving the reliability of the fire extinguisher bottle locking mechanism.

[0022] The present invention provides the following specific embodiments, which can be combined with each other. For the same or similar concepts or processes, they may not be described again in some embodiments.

[0023] Figure 2 This is a schematic diagram of the overall structure of an isolation and locking type fire extinguisher bottle locking device provided in an embodiment of the present invention; Figure 3 for Figure 2 The cross-sectional view of the locking mechanism for the fire extinguisher bottle provided in the embodiment shown; Figure 4 for Figure 3 The schematic diagram illustrates the principle of lever unlocking by rotating the locking key shaft in the locking mechanism of the fire extinguisher bottle provided in the embodiment shown. Figure 5 for Figure 3 The illustrated embodiment provides a schematic diagram of the spring-loaded valve mechanism in the locking device for fire extinguishers. (Refer to...) Figures 2 to 5 As shown, the main structure of the isolation and locking type fire extinguisher bottle locking device provided in this embodiment of the invention includes: a locking housing 11, an ignition mechanism and a spring valve mechanism 9 disposed inside the locking housing 11, and a linkage lock assembly and a lever lock assembly disposed outside the locking housing 11.

[0024] like Figures 1 to 2 In the structure of the isolation and locking type fire extinguisher bottle locking device shown, the locking housing 11 has an extinguishing agent spray channel, as well as an isolated detonation mechanism installation channel and a locking mechanism installation channel; the detonation mechanism installation channel is equipped with a detonation mechanism, and the piston 4 of the detonation mechanism is located at the channel outlet; the extinguishing agent inlet channel in the locking mechanism installation channel and the extinguishing agent spray channel are coaxially connected channels, and the spring valve mechanism 9 installed inside the locking mechanism installation channel is used to block the extinguishing agent inlet channel and the extinguishing agent outlet channel in the extinguishing agent spray channel; The lever lock assembly in the embodiment of the present application is arranged at the exit end of the lock mechanism mounting channel, and the internal lock pin is pressed against the end of the spring valve mechanism 9, for pressing the spring valve mechanism 9 in the locked position; one end of the lever lock assembly is a rotating end, and the other end is provided with a semicircular groove; the lock key shaft 6 arranged as a semicircular pin structure in the linkage lock assembly passes through the through hole in the double lug seat on the lock housing 11, and is clamped in the semicircular groove of the lever lock assembly, so as to limit the rotation of the lever lock assembly; the linkage shaft 5 in the linkage lock assembly is located at the exit end of the detonating mechanism mounting channel and is pressed against the end of the piston 4.

[0025] Based on the embodiment shown in the present application Figure 1 and Figure 2 The working principle of the isolated locking type fire extinguishing bottle lock mechanism device provided by the embodiment is as follows: when the detonating mechanism detonates, the piston 4 is driven to move outward, the linkage shaft 5 is driven to rotate, the lock key shaft 6 is separated from the lever lock assembly, the lever lock assembly is rotated as a whole under the action of the spring force of the spring valve mechanism 9, the internal lock pin is released from the spring valve mechanism 9, and the valve 12 in the spring valve mechanism 9 moves axially along the lock mechanism mounting channel under the action of the gas in the fire extinguishing bottle until the fire extinguishing agent inlet channel and the fire extinguishing agent outlet channel are communicated.

[0026] In one implementation of the embodiment of the present application, as shown in Figure 3 The component structure of the lever lock assembly in the isolated locking type fire extinguishing bottle lock mechanism device includes a lever 7, a lever shaft 8 and a lock pin 19.

[0027] In this implementation, the lever shaft 8 is fixedly installed through the lug seat outside the lock housing 11, one end of the lever 7 is installed through the lever shaft 8, for rotating as a whole around the lever shaft 8; the other end of the lever 7 is provided with a semicircular groove, for being clamped in the lock key shaft 6 of the linkage lock assembly, and the rotation of the lever 7 is limited by the lock key shaft 6; the lock pin 19 passes through the through hole in the middle of the lever 7, the outer end is fixedly connected through a nut, and the inner end is pressed against the end face of the spring valve mechanism 9 installed in the lock mechanism mounting channel, for providing a locking force to the spring valve mechanism 9 in the state that the rotation of the lever 7 is limited by the lock key shaft 6.

[0028] In one implementation of the embodiment of the present application, as shown in Figure 4 The component structure of the spring valve mechanism 9 in the isolated locking type fire extinguishing bottle lock mechanism device includes a valve 12, a guide bushing 14, a pressure rod 17 and a spring 18.

[0029] In the implementation, the upper portion of the pressing rod 17 with the annular boss is embeddedly installed in the guide bush 14, the spring 18 is installed in the annular cavity formed by the pressing rod 17 and the guide bush 14, and the spring 18 is located between the annular boss of the pressing rod 17 and the limiting end face at the bottom end of the guide bush 14; one end of the valve 12 extends into the bottom end of the guide bush 14 and is threadedly connected with the connecting rod at the bottom of the pressing rod 17; It should be noted that the installation structure of the guide bush 14, the pressing rod 17, the valve 12 and the spring 18 is integrally installed into the lock mechanism installation channel, the pressing rod 17 is located at the end of the channel and is pressed and locked by the lock pin 19 of the lever lock assembly, so that the valve 12 is pressed at the connecting position of the lock mechanism installation channel and the fire extinguishing agent inlet channel, and the fire extinguishing agent inlet channel and the outlet channel thereof are blocked.

[0030] Further, as shown in the drawings, Figure 4 The component structure of the spring valve mechanism 9 in the isolation and locking type fire extinguishing bottle lock mechanism device in the implementation includes the buffer ring 13, the supporting ring 15 and the sealing ring 16.

[0031] In the implementation, the supporting ring 15 and the sealing ring 16 located at the top of the spring are also nestedly installed in the annular cavity formed by the pressing rod 17 and the guide bush 14.

[0032] It should be noted that the buffer ring 13 is installed at the bottom end of the guide bush 14, and is used to provide a buffering effect when the valve 12 moves towards the side close to the guide bush 14.

[0033] In one implementation of the embodiment of the application, as shown in the drawings, Figure 2 and Figure 3 The linkage lock assembly in the isolation and locking type fire extinguishing bottle lock mechanism device includes the linkage shaft 5 and the lock key shaft 6 which are integrally connected through the bottom plate.

[0034] In the implementation, the lock key shaft 6 provided with the semicircular pin structure passes through the through hole in the double lug seat between the detonation mechanism installation channel and the outlet end of the lock mechanism installation channel in the lock mechanism shell 11, and cooperates with the semicircular groove at the other end of the lever 7 in the lever lock assembly to form a limiting form.

[0035] The linkage lock assembly provided in the implementation is used to make the lock key shaft 6 integrally connected on the bottom plate be clamped in the semicircular groove at the other end of the lever 7 in the lever lock assembly when the linkage shaft 5 is pressed against the piston 4 at the end of the detonation mechanism installed in the detonation mechanism installation channel, so as to limit the rotation of the lever lock assembly, thereby making the lever lock assembly provide a locking effect on the spring valve mechanism 9.

[0036] In one implementation of the embodiment of the application, as shown in the drawings, Figure 3 The component structure of the detonation mechanism in the isolation and locking type fire extinguishing bottle lock mechanism device in the implementation includes the fire lighter 1, the contactor 2, the electric detonation tube 3 and the piston 4.

[0037] In this implementation, the entrance end of the detonation mechanism installation channel is sequentially installed with the igniter 1, the contactor 2 and the electric detonation tube 3, and the exit end is installed with the piston 4.

[0038] In this implementation, the detonation mechanism is used for the contactor 2 tip discharge controlled by the igniter 1 to ignite the electric detonation tube 3, and the high-pressure gas generated by the explosion of the electric detonation tube 3 pushes the piston 4 to move to the outside of the detonation mechanism installation channel, the piston 4 pushes the linkage shaft 5 to drive the lock shaft 6 to rotate synchronously, and the lock shaft 6 releases the locking effect on the lever lock assembly after rotating.

[0039] In one implementation of the embodiment of the present application, as shown in Figure 4 As shown in the figure, in the locked state of the fire extinguishing bottle locking device, the contact circumferential dimension of the lock shaft 6 in the linkage shaft assembly with the semicircular groove of the lever 7 in the lever lock assembly is not less than 2.5 mm; and in the unlocked state of the fire extinguishing bottle locking device, the minimum gap of the lock shaft 6 in the linkage shaft assembly with the semicircular groove of the lever 7 in the lever lock assembly is not less than 0.4 mm.

[0040] The embodiment of the present application also provides a fire extinguishing bottle, which is provided with the isolation and locking type fire extinguishing bottle locking device according to any one of the above-mentioned embodiments; the detonation mechanism and the spring valve mechanism 9 in the isolation and locking type fire extinguishing bottle locking device of the embodiment are physically isolated through the detonation mechanism installation channel and the lock mechanism installation channel, and the direction of the high-pressure fire extinguishing agent pressure in the fire extinguishing bottle on the valve 12 in the spring valve mechanism 9 in the locked state is consistent with the movement direction of the valve 12 in the unlocked state.

[0041] Based on the isolation and locking type fire extinguishing bottle locking device and the fire extinguishing bottle provided with the isolation and locking type fire extinguishing bottle locking device according to the above-mentioned embodiments of the present application, the present application also provides a fire extinguishing bottle unlocking method, which can include the following steps: Step 1, when the isolation and locking type fire extinguishing bottle locking device arranged in the fire extinguishing bottle receives an unlocking instruction, the detonation mechanism starts to work, wherein the igniter 1 controls the contactor 2 to discharge the tip, ignites the electric detonation tube 3, and the high-pressure gas generated by the explosion of the electric detonation tube 3 pushes the piston 4; Step 2, after the detonation mechanism detonates, the linkage lock assembly is driven to move, and the linkage shaft 5 and the lock shaft 6 in the linkage lock assembly lose the contact locking in the semicircular groove at the other end of the lever 7 in the lever lock assembly, so that the lever lock assembly loses the locking effect on the spring valve mechanism 9; Step 3, after the lever lock assembly loses the locking effect on the spring valve mechanism 9, the plunger 17 drives the valve 12 to move in the guide bushing 14 under the action of the spring 18 and the high-pressure fire extinguishing agent pressure in the bottle, so as to realize the communication between the inlet channel and the outlet channel of the fire extinguishing agent.

[0042] The application provides an isolated locking type fire extinguishing bottle lock device, a fire extinguishing bottle and an unlocking method. On one hand, a lock key shaft is used to unlock the lever with a cover, so that the spring valve is upwardly popped to guide the triggering of the fire extinguishing agent. The movement direction of the piston when it needs to be opened is consistent with the force direction of the high-pressure fire extinguishing agent in the bottle when it is in the closed state, so that the piston is prevented from being deformed under the pressure of the fire extinguishing agent in the fire extinguishing bottle for a long time and from being stuck when moving, thereby improving the reliability of the lock device. On the other hand, the design is optimized for the problem that the traditional scheme mixes the fire powder in the transmission tube and the fire extinguishing agent in the same physical channel after the transmission tube is ignited, which may pollute the fire extinguishing agent. The structure form of the fire extinguishing bottle lock device is optimized, the electric detonation tube is physically isolated from the fire extinguishing agent in the fire extinguishing bottle, and the problem of pollution of the electric detonation tube to the fire extinguishing agent is solved.

[0043] The structure form of the isolated locking type fire extinguishing bottle lock device provided by the application is schematically described below through a specific implementation example.

[0044] Implementation example Reference Figures 2 to 5 The implementation example provides an isolated locking type fire extinguishing bottle lock device, which comprises an igniter 1, a contactor 2, an electric detonation tube 3, a piston 4, a linkage shaft 5, a lock key shaft 6, a lever 7, a lever shaft 8, a spring valve mechanism 9, a working nozzle 10 and a lock shell 11. The spring valve mechanism 9 comprises a valve 12, a buffer ring 13, a guide bushing 14, a support ring 15, a sealing ring 16, a pressing rod 17, a spring 18 and a lock pin 19. The mounting relationship and connection form of each component in the hard oil receiving socket device provided by the implementation example have been described in the above embodiment, and will not be repeated here. The functions of each component in the device are described as follows.

[0045] The lock key shaft 6 has a semicircular pin shaft for contacting a semicircular groove on the lever 7, so that the lever 7 is locked, and the valve 12 is upwardly moved after the spring 18 is compressed and rebounded.

[0046] 1. When a fire occurs, the contactor 2 controlled by the igniter 1 discharges at the tip to ignite the electric detonation tube 3. The electric detonation tube 3 explodes to generate high-pressure gas to push the piston 4 to move towards the installation channel of the ignition mechanism. The piston 4 pushes the linkage shaft 5 to drive the lock key shaft 6 to rotate synchronously. After the lock key shaft 6 rotates, the locking effect on the lever 7 is released to unlock the lever 7. The spring 18 in the spring valve mechanism 9 moves to drive the valve 12 to move upwardly to lift the lever 7. At the same time, the valve 12 is separated from the lock shell 11, so that the fire extinguishing agent channel in the lock shell 11 is communicated with the channel in the working nozzle 10. The fire extinguishing agent is sprayed from the working nozzle 10 to the fire area to realize the fire extinguishing function.

[0047] 2. The lock key shaft 6 is set as a half-circle pin shaft structure, and is used for the lever 7. When the lock key shaft 6 is rotated and loses the locking effect on the lever 7, the lever 7 rotates around the lever shaft 8 and passes through the half-circle pin shaft of the lock key shaft 6.

[0048] 3. When the fire extinguishing bottle lock is in the closed position, in order to ensure that the lever 7 can safely and reliably press the spring valve mechanism 9, the circumferential size of the contact between the half-circle pin of the lock key shaft 6 and the half-circle groove on the lever 7 is not less than 2.5 mm, so as to ensure the reliability of the contact.

[0049] 4. When the fire extinguishing bottle lock is in the open position, in order to ensure that the lever 7 can rotate flexibly and smoothly around the lever shaft 8, the minimum gap of the half-circle groove in the rotating process of the half-circle pin of the lock key shaft 6 after being unlocked and the lever 7 is not less than 0.4 mm, so as to prevent the half-circle groove from interfering with the half-circle pin on the lock key shaft 6 when the lever 7 rotates, and affect the flexible and smooth rotation of the lever 7.

[0050] 5. The fire lighter 1 and the spring valve 9 are completely physically isolated, and there is no communication channel. The spring valve mechanism 9 is completely dependent on mechanical connection to move, so there is no possibility that the combustion material in the electric detonator 3 enters the fire extinguishing agent flow channel and pollutes the fire extinguishing agent, thereby avoiding the influence of the mixed combustion material in the fire extinguishing agent on the fire extinguishing efficiency of the fire extinguishing agent.

[0051] 6. The spring valve mechanism 9 has a buffer ring 13 pasted in the guide bushing 14, which is used to provide a buffering effect when the valve 12 moves towards the side close to the guide bushing 14.

[0052] Although the embodiments of the present application are disclosed as above, the content is only the embodiments adopted for the purpose of understanding the present application, and is not used to limit the present application. Any person skilled in the art of the present application can make any modification and change in the implementation form and details without departing from the spirit and scope of the present application. However, the patent protection scope of the present application shall be subject to the scope defined by the appended claims.

Claims

1. An isolated lockout fire extinguisher lockout device, comprising: It comprises: The lock machine shell (11), the ignition mechanism and the spring valve mechanism (9) arranged inside the lock machine shell (11), and the linkage lock assembly and the lever lock assembly arranged outside the lock machine shell (11); Wherein, the inside of the lock machine shell (11) is provided with a fire extinguishing agent injection channel, and an ignition mechanism installation channel and a lock mechanism installation channel which are isolated from each other; the ignition mechanism installation channel is provided with an ignition mechanism, and the piston (4) of the ignition mechanism is located at the outlet position of the channel; the lock mechanism installation channel and the fire extinguishing agent inlet channel in the fire extinguishing agent injection channel are coaxially arranged and connected, and the spring valve mechanism (9) arranged in the lock mechanism installation channel is used to block the fire extinguishing agent inlet channel and the fire extinguishing agent outlet channel in the fire extinguishing agent injection channel; The lever lock assembly is arranged at the outlet end of the lock mechanism installation channel, and the low pressure of the lock pin in the lever lock assembly is at the end of the spring valve mechanism (9), which is used to press the spring valve mechanism (9) tightly at the locking position; one end of the lever lock assembly is a rotating end, and the other end is provided with a semicircular groove; the lock key shaft (6) arranged as a semicircular pin structure in the linkage lock assembly passes through the through hole of the double lug seat on the lock machine shell (11), and the lock key shaft (6) is clamped in the semicircular groove of the lever lock assembly to limit the rotation of the lever lock assembly; the linkage shaft (5) in the linkage lock assembly is located at the outlet end of the ignition mechanism installation channel and abuts against the end of the piston (4).

2. The isolated locking type fire extinguishing bottle lock machine device according to claim 1, wherein The isolated locking type fire extinguishing bottle lock machine device is used to drive the piston (4) to move outward when the ignition mechanism is ignited, drive the linkage shaft (5) to rotate and then separate from the lever lock assembly, make the lever lock assembly rotate as a whole under the spring force of the spring valve mechanism (9), drive the lock pin in the lever lock assembly to release the spring valve mechanism (9), and make the valve (12) in the spring valve mechanism (9) move axially along the lock mechanism installation channel under the gas of the fire extinguishing bottle until the fire extinguishing agent inlet channel and the fire extinguishing agent outlet channel are communicated.

3. The isolation and locking fire extinguisher lock machine device according to claim 2, characterized in that, The lever lock assembly comprises a lever (7), a lever shaft (8) and a lock pin (19); The lever shaft (8) is fixedly installed through the lug seat outside the lock machine shell (11), one end of the lever (7) is installed through the lever shaft (8) and is used to rotate as a whole around the lever shaft (8); the other end of the lever (7) is provided with a semicircular groove and is used to be clamped in the lock key shaft (6) of the linkage lock assembly and be limited in rotation by the lock key shaft (6); the lock pin (19) passes through the through hole in the middle of the lever (7), the outer end is fixedly connected through a nut, and the inner end abuts against the end face of the spring valve mechanism (9) installed in the lock mechanism installation channel, which is used to provide locking force to the spring valve mechanism (9) when the lever (7) is limited in rotation by the lock key shaft (6).

4. The isolation and locking fire extinguisher lock machine device according to claim 3, characterized in that, The spring valve mechanism (9) comprises a valve (12), a guide bushing (14), a pressure rod (17) and a spring (18); The upper part of the pressing rod (17) with an annular boss is embedded in the guide bushing (14), a spring (18) is installed in the annular cavity formed by the pressing rod (17) and the guide bushing (14), the spring (18) is located between the annular boss of the pressing rod (17) and the limiting end face at the bottom end of the guide bushing (14), one end of the valve (12) extends into the bottom end of the guide bushing (14) and is threadedly connected with the connecting rod at the bottom of the pressing rod (17); The installation structure of the guide bushing (14), the pressing rod (17), the valve (12) and the spring (18) is integrally installed into the lock mechanism installation channel, the pressing rod (17) is located at the end of the channel and is pressed and locked by the lock pin (19) of the lever lock assembly, so that the valve (12) is pressed at the connecting position of the lock mechanism installation channel and the fire extinguishing agent inlet channel, and the fire extinguishing agent inlet channel and its outlet channel are blocked.

5. The isolation and locking fire extinguisher lock machine device according to claim 3, characterized in that, The spring valve mechanism (9) further comprises a buffer ring (13), a supporting ring (15) and a sealing ring (16); The annular cavity formed by the pressing rod (17) and the guide bushing (14) further nests the supporting ring (15) and the sealing ring (16) at the top of the spring; The bottom end of the guide bushing (14) is externally provided with the buffer ring (13), which provides a buffering effect when the valve (12) moves towards the side close to the guide bushing (14).

6. The isolated locking type fire extinguishing bottle lock mechanism device according to claim 3, characterized in that, The linkage lock assembly comprises a linkage shaft (5) and a lock key shaft (6) connected as an integral structure through a bottom plate; the lock key shaft (6) in the form of a semicircular pin passes through the through hole on the double lug seat between the detonation mechanism installation channel and the outlet end of the lock mechanism installation channel in the lock mechanism shell (11), and cooperates with the semicircular groove at the other end of the lever (7) in the lever lock assembly to form a limiting form; The linkage lock assembly is used to make the lock key shaft (6) integrally connected on the bottom plate be clamped in the semicircular groove at the other end of the lever (7) in the lever lock assembly when the linkage shaft (5) is pressed against the end of the piston (4) of the detonation mechanism installed in the detonation mechanism installation channel, so as to limit the rotation of the lever lock assembly, thereby making the lever lock assembly provide a locking effect on the spring valve mechanism (9).

7. The isolation and lock type fire extinguisher lock machine device according to claim 1, wherein, The detonation mechanism comprises an igniter (1), a contactor (2), an electric detonation tube (3) and a piston (4); The inlet end of the detonation mechanism installation channel is sequentially provided with the igniter (1), the contactor (2) and the electric detonation tube (3), and the outlet end is provided with the piston (4); The detonation mechanism is used for the contactor (2) controlled by the igniter (1) to discharge at the tip end, ignite the electric detonation tube (3), and make the electric detonation tube (3) explode to generate high-pressure gas to push the piston (4) to move out of the detonation mechanism installation channel, and make the piston (4) push the linkage shaft (5) to drive the lock key shaft (6) to rotate synchronously, and make the lock key shaft (6) release the locking effect on the lever lock assembly after rotation.

8. The isolation and locking fire extinguisher lock machine device according to any one of claims 1 to 7, characterized in that, In the locked state of the fire extinguishing bottle lock mechanism device, the contact circumferential dimension of the lock key shaft (6) in the linkage shaft assembly with the semicircular groove of the lever (7) in the lever lock assembly is not less than 2.5 mm. The minimum gap between the lock key shaft (6) in the linkage shaft assembly and the semicircular groove in the lever (7) in the lever lock assembly in the unlocking state of the fire extinguishing bottle lock mechanism device is not less than 0.4mm.

9. A fire extinguishing bottle characterized by The fire extinguishing bottle is provided with the isolation locking type fire extinguishing bottle lock mechanism device as claimed in any one of claims 1-8; the detonation mechanism and the spring valve mechanism (9) in the isolation locking type fire extinguishing bottle lock mechanism device are physically isolated through the detonation mechanism installation channel and the lock mechanism installation channel, and the direction of the high-pressure fire extinguishing agent pressure on the valve (12) in the spring valve mechanism (9) in the locked state is consistent with the movement direction of the valve (12) in the unlocked state.

10. A method of unlocking a fire extinguisher bottle, characterized in that The method for unlocking the fire extinguishing bottle as claimed in claim 9 comprises: Step 1: when the isolation locking type fire extinguishing bottle lock mechanism device configured in the fire extinguishing bottle receives the unlocking instruction, the detonation mechanism starts to work, wherein the igniter (1) controls the contactor (2) to discharge, ignites the electric detonation tube (3), and the electric detonation tube (3) explodes to generate high-pressure gas to push the piston (4); Step 2: after the detonation mechanism detonates, the linkage lock assembly is driven to move, the linkage shaft (5) and the lock key shaft (6) in the linkage lock assembly lose the contact locking with the semicircular groove at the other end of the lever (7) in the lever lock assembly, so that the lever lock assembly loses the locking effect on the spring valve mechanism (9); Step 3: after the lever lock assembly loses the locking effect on the spring valve mechanism (9), the pressure rod (17) drives the valve (12) to move in the guide bushing (14) under the action of the spring (18) force and the high-pressure fire extinguishing agent pressure in the bottle, so as to realize the communication between the fire extinguishing agent inlet channel and the outlet channel.

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