A new automatic explosion isolation device

Abstract

A new automatic explosion isolation device, including trigger device, pressure storage liquid device, shock wave receiving sensing device, spraying device, the trigger device includes sleeve and trigger piston arranged in the sleeve, sleeve is provided with into hole and output hole, the trigger piston is provided with first sealing part, one end is connected with the shock wave receiving sensing device, the first sealing part can block the into hole or block the output hole or block the into hole and output hole at the same time, the pressure storage liquid device communicates with the into hole, the spraying device communicates with the output hole, the sleeve is provided with liquid passage. Through the cooperation of pressure storage liquid device and trigger device, it is not necessary to check and replace the fire extinguishing medium regularly, the safety is increased, the cost is reduced, the fire extinguishing liquid is sprayed from the spraying device under the high pressure, the unnecessary personnel casualties are reduced, the trigger structure is simple, the manufacturing cost is low, the installation is convenient, and the use efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of mine safety equipment, specifically relating to a novel automatic explosion-proof device. Background Technology

[0002] Safety during construction in mines has always been a crucial issue in the mining industry, and ensuring safety during underground operations is clearly stipulated in relevant national standards.

[0003] Automatic explosion-proof devices are key equipment to prevent the spread of flames after an explosion in a mine. The working principle is that when an explosion occurs, the shock wave will reach the explosion-proof device before the flame. Therefore, the shock wave generated by the explosion will trigger the explosion-proof main unit. After triggering, under the action of high-pressure gas, the extinguishing powder in the storage hood will be sprayed out through the powder spraying nozzle to block the flame transmission.

[0004] However, the existing technology has the following drawbacks: 1. The extinguishing powder needs to be inspected and replaced regularly, otherwise it will clump together and cannot effectively stop the explosion in the event of an explosion, causing devastating damage to the entire underground construction; 2. The simultaneous spraying of high-pressure gas and extinguishing powder will have a strong impact on nearby workers, causing unnecessary casualties; 3. It is a one-way trigger, meaning that the explosion-proof main unit can only be triggered when an explosion occurs on the side where the shock wave receiver is located. Therefore, two explosion-proof devices are usually installed opposite each other in the tunnel to extinguish an explosion that occurs on either side, but this approach undoubtedly increases the cost of use. Summary of the Invention

[0005] In order to solve the above-mentioned technical problems, this utility model aims to provide a new type of automatic explosion-proof device.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows.

[0007] A novel automatic explosion-proof device includes a triggering device, a pressure-storing and liquid-storing device, a shock wave receiving and sensing device, and a spraying device. The triggering device includes a sleeve and a trigger piston disposed within the sleeve. The sleeve has an inlet and an outlet. The trigger piston has a first sealing part, one end of which is connected to the shock wave receiving and sensing device. The first sealing part can block the inlet, the outlet, or both simultaneously. The pressure-storing and liquid-storing device communicates with the inlet, and the spraying device communicates with the outlet. A liquid passage is provided within the sleeve. The pressure-storing and liquid-storing device and the inlet, as well as the spraying device and the outlet, can be connected via pipelines. A seal has been applied between the sleeve and the trigger piston to prevent high-pressure liquid leakage.

[0008] A further preferred embodiment is that the other end of the trigger piston is connected to the shock wave receiving and sensing device, and the liquid passage is composed of a first liquid passage and a second liquid passage, and is disposed on both sides of the first sealing part.

[0009] A further preferred embodiment is that the liquid passage is formed by the space enclosed by the inner wall of the sleeve, the first sealing part, and the outer wall of the trigger piston.

[0010] A further preferred embodiment is that a second sealing part is provided on the right side of the trigger piston away from the first sealing part, and the liquid passage is formed by the space enclosed by the inner wall of the right side of the sleeve, the first sealing part, the outer wall of the trigger piston, and the second sealing part.

[0011] A further preferred embodiment is that the liquid passage is composed of a through hole disposed on the trigger piston.

[0012] A further preferred embodiment is that a third sealing part and a second sealing part are provided on both sides of the trigger piston away from the first sealing part. The first liquid passage is formed by the space enclosed by the right inner wall of the sleeve, the first sealing part, the outer wall of the trigger piston, and the second sealing part. The second liquid passage is formed by the space enclosed by the left inner wall of the sleeve, the first sealing part, the outer wall of the trigger piston, and the third sealing part.

[0013] A further preferred embodiment is that the second liquid passage and the first liquid passage are composed of through holes on the left and right sides of the first sealing part and disposed on the trigger piston.

[0014] A further preferred embodiment is that the first sealing part blocks the inlet hole, and the outlet hole on the sleeve is connected to the first liquid passage and the second liquid passage respectively.

[0015] A further preferred embodiment is that the first sealing part blocks the output hole, and the inlet hole on the sleeve is connected to the first liquid passage and the second liquid passage respectively.

[0016] A further preferred embodiment is that the shock wave receiving and sensing device consists of a shock wave receiver and a push rod with one end connected to the shock wave receiver and the other end connected to the trigger piston.

[0017] A further preferred embodiment is that the high-pressure extinguishing liquid stored in the pressure storage device can be a mixture of high-pressure gas and water, or high-pressure liquid nitrogen or high-pressure liquid carbon dioxide.

[0018] A further preferred embodiment is that there are at least two pressure storage devices and at least two spraying devices.

[0019] A further preferred embodiment is that the pressurized liquid storage devices are connected in parallel via T-junctions, with a check valve and a shut-off valve installed on each parallel connection pipeline. The spraying devices are also connected in parallel via T-junctions. This parallel design of multiple pressurized liquid storage devices increases the quantity of extinguishing media, correspondingly increasing the extinguishing time. The check valves prevent backflow of high-pressure liquid, and the shut-off valves control the high-pressure liquid in the pressurized liquid storage devices to be in a ready-to-spray or prohibited-from-spray state. The interconnected design of multiple spraying devices increases the extinguishing range.

[0020] This invention offers the following advantages over existing technologies: By combining a pressurized liquid storage device with a triggering device, the need for regular inspection and replacement of the extinguishing medium is eliminated, extending the service life of the explosion-proof device and preventing the failure to effectively halt the spread of an explosion, thus increasing safety and reducing operating costs. The extinguishing liquid is sprayed from the spraying device under high pressure, avoiding the direct impact of a high-pressure gas and extinguishing powder mixture on nearby workers, reducing unnecessary casualties. The triggering structure is simple, low-cost, easy to install, and highly efficient. The combination of the pressurized liquid storage device and the triggering device, along with the inclusion of a first and second liquid passage within the triggering device and shock wave receiving sensors connected to both ends of the trigger piston, ensures that an explosion on either side of the tunnel can trigger extinguishing, improving safety and reducing costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model.

[0022] Figure 2 This is a schematic diagram of the structure in the working state of the first embodiment of this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0024] Figure 4 This is a schematic diagram of the third embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the fourth embodiment of the present utility model.

[0026] Figure 6 This is a schematic diagram of the fifth embodiment of the present utility model.

[0027] Figure 7 This is a schematic diagram of the sixth embodiment of the present utility model.

[0028] Figure 8 This is a schematic diagram of the structure in the working state of the sixth embodiment of this utility model.

[0029] Figure 9 This is a schematic diagram of the seventh embodiment of the present utility model.

[0030] Figure 10 This is a schematic diagram of the eighth embodiment of the present utility model.

[0031] Figure 11 This is a schematic diagram of the ninth embodiment of the present utility model.

[0032] Figure 12 This is a schematic diagram of the tenth embodiment of the present utility model.

[0033] Among them, 1. triggering device; 11. sleeve; 111. inlet hole; 112. outlet hole; 12. triggering piston; 121. first sealing part; 122. second sealing part; 123. third sealing part.

[0034] 2. Pressure storage and liquid storage device.

[0035] 3. Shock wave receiving sensor; 31. Shock wave receiver; 32. Push rod.

[0036] 4. Spraying device.

[0037] 5. Liquid passage; 51. First liquid passage; 52. Second liquid passage.

[0038] 6. Tee fittings.

[0039] 7. Check valve.

[0040] 8. Shut-off valve.

[0041] 9. Sealing ring. Implementation

[0042] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0043] Meanwhile, the terms “center,” “longitudinal,” “lateral,” “up,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this application.

[0044] First embodiment

[0045] As attached Figure 1 and Figure 2 As shown, a novel automatic explosion-proof device includes a triggering device 1, a pressure-storing liquid storage device 2 containing high-pressure fire extinguishing liquid, a shock wave receiving and sensing device 3, and a spraying device 4. The triggering device 1 includes a sleeve 11 and a triggering piston 12 disposed within the sleeve 11. The sleeve 11 is provided with an inlet hole 111 and an outlet hole 112. The triggering piston 12 is provided with a first sealing part 121. One end of the triggering piston 12 is connected to the shock wave receiving and sensing device 3. The first sealing part 121 can block the inlet hole 111. The pressure-storing liquid storage device 2 is connected to the inlet hole 111. The spraying device 4 is connected to the outlet hole 112. A liquid passage 5 is provided inside the sleeve 11.

[0046] When the shock wave arrives, the shock wave receiving sensor 3 receives the force of the shock wave and pushes the trigger piston 12 to move inside the sleeve 11, causing the first sealing part 121 to move and expose the inlet hole 111 on the sleeve 11. At this time, the inlet hole 111 and the outlet hole 112 are connected through the liquid passage 5. The high-pressure liquid in the pressure storage device 2 passes through the inlet hole 111, the liquid passage 5 and the outlet hole 112 and is sprayed out from the spraying device 4 to extinguish the fire.

[0047] The liquid passage 5 is formed by the space enclosed by the inner wall of the sleeve 11, the first sealing part 121, and the outer wall of the trigger piston 12. Taking the first sealing part 121 and the trigger piston 12 as cylindrical as an example, the diameter of the first sealing part 121 is larger than the diameter of the trigger piston 12 and fits tightly against the inner wall of the sleeve 11, thereby forming the liquid passage 5, which facilitates the passage of high-pressure liquid.

[0048] A second sealing part 122 is provided on the right side of the trigger piston 12 away from the first sealing part 121. The liquid passage 5 is formed by the space enclosed by the inner wall of the right side of the sleeve 11, the first sealing part 121, the outer wall of the trigger piston 12, and the second sealing part 122. Taking the first sealing part 121, the second sealing part 122, and the trigger piston 12 as cylindrical as an example, the diameters of the first sealing part 121 and the second sealing part 122 are larger than the diameter of the trigger piston 12 and are tightly fitted to the inner wall of the sleeve 11, thereby forming the liquid passage 5. This facilitates the passage of high-pressure liquid and, more effectively, prevents high-pressure liquid from flowing out from the position where the trigger piston 12 extends out of the sleeve 11 when passing through the liquid passage 5.

[0049] The shock wave receiving and sensing device 3 consists of a shock wave receiver 31 and a push rod 32 connected at one end to the shock wave receiver 31 and at the other end to the trigger piston 12. The shock wave is received by the shock wave receiver 31, and under the action of the shock wave, the push rod 32 pushes the trigger piston 12 to move within the sleeve 11.

[0050] The high-pressure fire extinguishing liquid stored in the pressure storage device 2 can be high-pressure carbon dioxide liquid, high-pressure liquid nitrogen, or a mixture of high-pressure gas and water, etc.

[0051] Second embodiment

[0052] As attached Figure 3 As shown, a novel automatic explosion-proof device includes a triggering device 1, a pressure-storing liquid storage device 2 containing high-pressure fire extinguishing liquid, a shock wave receiving and sensing device 3, and a spraying device 4. The triggering device 1 includes a sleeve 11 and a triggering piston 12 disposed within the sleeve 11. The sleeve 11 is provided with an inlet hole 111 and an outlet hole 112. The triggering piston 12 is provided with a first sealing part 121. One end of the triggering piston 12 is connected to the shock wave receiving and sensing device 3. The first sealing part 121 can block the outlet hole 112. The pressure-storing liquid storage device 2 is connected to the inlet hole 111, and the spraying device 4 is connected to the outlet hole 112. A liquid passage 5 is provided inside the sleeve 11.

[0053] When the shock wave arrives, the shock wave receiving sensor 3 receives the force of the shock wave and pushes the trigger piston 12 to move inside the sleeve 11, causing the first sealing part 121 to move and expose the output hole 112 on the sleeve 11. At this time, the inlet hole 111 and the output hole 112 are connected through the liquid passage 5, and the high-pressure liquid in the pressure storage device 2 is sprayed out from the spraying device 4 through the output hole 112 to extinguish the fire.

[0054] The liquid passage 5 is formed by the space enclosed by the inner wall of the sleeve 11, the first sealing part 121, and the outer wall of the trigger piston 12. Taking the first sealing part 121 and the trigger piston 12 as cylindrical as an example, the diameter of the first sealing part 121 is larger than the diameter of the trigger piston 12 and fits tightly against the inner wall of the sleeve 11, thereby forming the liquid passage 5, which facilitates the passage of high-pressure liquid.

[0055] A second sealing part 122 is provided on the trigger piston 12 at a position away from the first sealing part 121. The liquid passage 5 is formed by the space enclosed by the inner wall of the right side of the sleeve 11, the first sealing part 121, the outer wall of the trigger piston 12, and the second sealing part 122. Taking the first sealing part 121, the second sealing part 122, and the trigger piston 12 as cylindrical as an example, the diameters of the first sealing part 121 and the second sealing part 122 are larger than the diameter of the trigger piston 12 and are tightly fitted to the inner wall of the sleeve 11, thereby forming the liquid passage 5. This facilitates the passage of high-pressure liquid and, more effectively, prevents high-pressure liquid from flowing out from the position where the trigger piston 12 extends out of the sleeve 11 when passing through the liquid passage 5.

[0056] The shock wave receiving and sensing device 3 consists of a shock wave receiver 31 and a push rod 32 connected at one end to the shock wave receiver 31 and at the other end to the trigger piston 12. The shock wave is received by the shock wave receiver 31, and under the action of the shock wave, the push rod 32 pushes the trigger piston 12 to move within the sleeve 11.

[0057] The high-pressure fire extinguishing liquid stored in the pressure storage device 2 can be high-pressure carbon dioxide liquid, high-pressure liquid nitrogen, or a mixture of high-pressure gas and water, etc.

[0058] Third embodiment

[0059] As attached Figure 4 As shown, a novel automatic explosion-proof device includes a triggering device 1, a pressure-storing liquid storage device 2 containing high-pressure fire extinguishing liquid, a shock wave receiving and sensing device 3, and a spraying device 4. The triggering device 1 includes a sleeve 11 and a triggering piston 12 disposed within the sleeve 11. The sleeve 11 is provided with an inlet hole 111 and an outlet hole 112. The triggering piston 12 is provided with a first sealing part 121. One end of the triggering piston 12 is connected to the shock wave receiving and sensing device 3. The first sealing part 121 simultaneously blocks the inlet hole 111 and the outlet hole 112. The pressure-storing liquid storage device 2 is connected to the inlet hole 111, and the spraying device 4 is connected to the outlet hole 112. A liquid passage 5 is provided inside the sleeve 11.

[0060] When the shock wave arrives, the shock wave receiving sensor 3 receives the force of the shock wave and pushes the trigger piston 12 to move inside the sleeve 11, causing the first sealing part 121 to move and expose the inlet hole 111 and the outlet hole 112 on the sleeve 11. At this time, the inlet hole 111 and the outlet hole 112 are connected through the liquid passage 5. The high-pressure liquid in the pressure storage device 2 passes through the inlet hole 111, the liquid passage 5 and the outlet hole 112 and is sprayed out from the spraying device 4 to extinguish the fire.

[0061] The liquid passage 5 is formed by the space enclosed by the inner wall of the sleeve 11, the first sealing part 121, and the outer wall of the trigger piston 12. Taking the first sealing part 121 and the trigger piston 12 as cylindrical as an example, the diameter of the first sealing part 121 is larger than the diameter of the trigger piston 12 and fits tightly against the inner wall of the sleeve 11, thereby forming the liquid passage 5, which facilitates the passage of high-pressure liquid.

[0062] A second sealing part 122 is provided on the trigger piston 12 at a position away from the first sealing part 121. The liquid passage 5 is formed by the space enclosed by the inner wall of the right side of the sleeve 11, the first sealing part 121, the outer wall of the trigger piston 12, and the second sealing part 122. Taking the first sealing part 121, the second sealing part 122, and the trigger piston 12 as cylindrical as an example, the diameters of the first sealing part 121 and the second sealing part 122 are larger than the diameter of the trigger piston 12 and are tightly fitted to the inner wall of the sleeve 11, thereby forming the liquid passage 5. This facilitates the passage of high-pressure liquid and, more effectively, prevents high-pressure liquid from flowing out from the position where the trigger piston 12 extends out of the sleeve 11 when passing through the liquid passage 5.

[0063] The shock wave receiving and sensing device 3 consists of a shock wave receiver 31 and a push rod 32 connected at one end to the shock wave receiver 31 and at the other end to the trigger piston 12. The shock wave is received by the shock wave receiver 31, and under the action of the shock wave, the push rod 32 pushes the trigger piston 12 to move within the sleeve 11.

[0064] The high-pressure fire extinguishing liquid stored in the pressure storage device 2 can be high-pressure carbon dioxide liquid, high-pressure liquid nitrogen, or a mixture of high-pressure gas and water, etc.

[0065] Fourth embodiment

[0066] As attached Figure 5As shown, taking the first sealing part 121 simultaneously blocking the inlet hole 111 and the outlet hole 112 as an example, a novel automatic explosion-proof device includes a triggering device 1, a pressure storage device 2 storing high-pressure fire extinguishing liquid, a shock wave receiving and sensing device 3, and a spraying device 4. The triggering device 1 includes a sleeve 11 and a triggering piston 12 disposed in the sleeve 11. The sleeve 11 is provided with an inlet hole 111 and an outlet hole 112. The triggering piston 12 is provided with a first sealing part 121. One end of the triggering piston 12 is connected to the shock wave receiving and sensing device 3. The first sealing part 121 simultaneously blocks the inlet hole 111 and the outlet hole 112. The pressure storage device 2 is connected to the inlet hole 111, and the spraying device 4 is connected to the outlet hole 112. A liquid passage 5 is provided in the sleeve 11, and the liquid passage 5 is composed of through holes disposed on the triggering piston 12.

[0067] When the shock wave arrives, the shock wave receiving sensor 3 receives the force of the shock wave and pushes the trigger piston 12 to move inside the sleeve 11, causing the first sealing part 121 to move and expose the inlet hole 111 and the outlet hole 112 on the sleeve 11. At this time, the inlet hole 111 and the outlet hole 112 are connected through the liquid passage 5 formed by the through hole provided on the trigger piston 12. The high-pressure liquid in the pressure storage device 2 passes through the inlet hole 111, the liquid passage 5 and the outlet hole 112 and is sprayed out from the spraying device 4 to extinguish the fire.

[0068] The shock wave receiving and sensing device 3 consists of a shock wave receiver 31 and a push rod 32 connected at one end to the shock wave receiver 31 and at the other end to the trigger piston 12. The shock wave is received by the shock wave receiver 31, and under the action of the shock wave, the push rod 32 pushes the trigger piston 12 to move within the sleeve 11.

[0069] The high-pressure fire extinguishing liquid stored in the pressure storage device 2 can be high-pressure carbon dioxide liquid, high-pressure liquid nitrogen, or a mixture of high-pressure gas and water, etc.

[0070] Fifth embodiment

[0071] As attached Figure 6As shown, a novel automatic explosion-proof device, based on the first embodiment, includes at least two pressure-storing liquid storage devices 2 and at least two spraying devices 4. The pressure-storing liquid storage devices 2 are connected in parallel via T-joints 6, and each parallel connection pipeline is equipped with a check valve 7 and a shut-off valve 8. The spraying devices 4 are also connected in parallel via T-joints 6. The parallel design of multiple pressure-storing liquid storage devices 2 increases the quantity of extinguishing medium, correspondingly increasing the extinguishing time. The interconnected design of multiple spraying devices increases the extinguishing range. A check valve 7 is installed on the pipeline connecting the pressure storage device 2 and the inlet port 111 to prevent backflow of high-pressure liquid. A shut-off valve 8 is installed to control the high-pressure liquid in the pressure storage device 2 to be in a state ready to be sprayed or a state prohibited from spraying. For example, closing the shut-off valve 8 during transportation can effectively prevent the trigger piston 12 from moving the first sealing part 121 under bumpy conditions, causing the inlet port 111 to connect with the outlet port 112 and resulting in the high-pressure liquid being sprayed out. Or, when pressurizing and filling the pressure storage device 2, it can prevent accidental contact that causes the trigger piston 12 to move the first sealing part 121, causing the inlet port 111 to connect with the outlet port 112 and resulting in the high-pressure liquid being sprayed out.

[0072] Sixth embodiment

[0073] As attached Figure 7 and Figure 8 As shown, a novel automatic explosion-proof device includes a triggering device 1, a pressure-storing liquid storage device 2 containing high-pressure fire extinguishing liquid, a shock wave receiving sensor 3, and a spraying device 4. The triggering device 1 includes a sleeve 11 and a trigger piston 12 disposed within the sleeve 11. The sleeve 11 has an inlet hole 111 and an outlet hole 112. The pressure-storing liquid storage device 2 communicates with the inlet hole 111, and the spraying device 4 communicates with the outlet hole 112. The trigger piston 12 has a first sealing part 121, and one end of the trigger piston 12 is connected to... The shock wave receiving sensor 3 is connected, the first sealing part 121 blocks the inlet hole 111, the sleeve 11 is provided with a liquid passage 5, the other end of the trigger piston 12 is connected to the shock wave receiving sensor 3, the liquid passage 5 is composed of a first liquid passage 51 and a second liquid passage 52, and is provided on both sides of the first sealing part 121, and there are two output holes 112 on the sleeve 11, which are provided on both sides of the first sealing part 121 and are respectively connected to the first liquid passage 51 and the second liquid passage 52.

[0074] When the shock wave arrives from the right, the shock wave receiving and sensing device 3 connected to the right end of the trigger piston 12 receives the force of the shock wave and pushes the trigger piston 12 to move to the left inside the sleeve 11, causing the first sealing part 121 to move and expose the inlet hole 111 on the sleeve 11. At this time, the inlet hole 111 and the outlet hole 112 located on the right side of the first sealing part 121 are connected through the first liquid passage 51. The high-pressure liquid in the pressure storage device 2 passes through the inlet hole 111, the first liquid passage 51 and the outlet hole 112 and is sprayed out from the spraying device 4 to extinguish the fire. If the shock wave comes from the left, the shock wave receiving sensor 3 connected to the left end of the trigger piston 12 receives the force of the shock wave and pushes the trigger piston 12 to move to the right inside the sleeve 11, causing the first sealing part 121 to move and expose the inlet hole 111 on the sleeve 11. At this time, the inlet hole 111 and the outlet hole 112 located on the left side of the first sealing part 121 are connected through the second liquid passage 52. The high-pressure liquid in the pressure storage device 2 passes through the inlet hole 111, the second liquid passage 52 and the outlet hole 112 and is sprayed out from the spraying device 4 to extinguish the fire.

[0075] A second sealing part 122 is provided on the right side of the trigger piston 12 away from the first sealing part 121. The first liquid passage 51 is formed by the space enclosed by the inner wall of the right side of the sleeve 11, the first sealing part 121, the outer wall of the trigger piston 12, and the second sealing part 122. Taking the first sealing part 121, the second sealing part 122, and the trigger piston 12 as cylindrical as an example, the diameters of the first sealing part 121 and the second sealing part 122 are larger than the diameter of the trigger piston 12 and are tightly fitted to the inner wall of the sleeve 11, thereby forming the first liquid passage 51. This facilitates the passage of high-pressure liquid and also optimizes the prevention of high-pressure liquid from flowing out from the position where the trigger piston 12 extends out of the sleeve 11 when passing through the first liquid passage 51.

[0076] A third sealing part 123 is provided on the left side of the trigger piston 12 away from the first sealing part 121. The second liquid passage 52 is formed by the space enclosed by the left inner wall of the sleeve 11, the first sealing part 121, the outer wall of the trigger piston 12, and the third sealing part 123. Taking the first sealing part 121, the third sealing part 123, and the trigger piston 12 as cylindrical, the diameters of the first sealing part 121 and the third sealing part 123 are larger than the diameter of the trigger piston 12 and are tightly fitted to the inner wall of the sleeve 11, thereby forming the second liquid passage 52. This facilitates the passage of high-pressure liquid and also optimizes the prevention of high-pressure liquid from flowing out from the position where the trigger piston 12 extends out of the sleeve 11 when passing through the second liquid passage 52.

[0077] The shock wave receiving and sensing device 3 consists of a shock wave receiver 31 and a push rod 32, one end of which is connected to the shock wave receiver 31 and the other end of which is connected to the trigger piston 12. The shock wave is received by the shock wave receiver 31, and under the action of the shock wave, the push rod 32 pushes the trigger piston 12 to move within the sleeve 11.

[0078] The high-pressure fire extinguishing liquid stored in the pressure storage device 2 can be high-pressure carbon dioxide liquid, high-pressure liquid nitrogen, or a mixture of high-pressure gas and water, etc.

[0079] Seventh embodiment

[0080] As attached Figure 9 As shown, a novel automatic explosion-proof device includes a triggering device 1, a pressure-storing liquid storage device 2 containing high-pressure fire extinguishing liquid, a shock wave receiving sensor 3, and a spraying device 4. The triggering device 1 includes a sleeve 11 and a trigger piston 12 disposed within the sleeve 11. The sleeve 11 has an inlet hole 111 and an outlet hole 112. The pressure-storing liquid storage device 2 communicates with the inlet hole 111, and the spraying device 4 communicates with the outlet hole 112. The trigger piston 12 has a first sealing part 121, and one end of the trigger piston 12... The first sealing part 121 blocks the output hole 112 and is connected to the shock wave receiving and sensing device 3. The sleeve 11 is provided with a liquid passage 5. The other end of the trigger piston 12 is connected to the shock wave receiving and sensing device 3. The liquid passage 5 is composed of a first liquid passage 51 and a second liquid passage 52, which are provided on both sides of the first sealing part 121. There are two inlet holes 111 on the sleeve 11, which are provided on both sides of the first sealing part 121 and are respectively connected to the second liquid passage 52 and the first liquid passage 51.

[0081] When the shock wave comes from the right, the shock wave receiving and sensing device 3 connected to the right end of the trigger piston 12 receives the force of the shock wave and pushes the trigger piston 12 to move to the left inside the sleeve 11, causing the first sealing part 121 to move and expose the output hole 112 on the sleeve 11. At this time, the inlet hole 111 and the output hole 112 located on the right side of the first sealing part 121 are connected through the first liquid passage 51. The high-pressure liquid in the pressure storage device 2 passes through the output hole 112 and is sprayed out from the spraying device 4 to extinguish the fire. If the shock wave comes from the left, the shock wave receiving sensor 3 connected to the left end of the trigger piston 12 receives the force of the shock wave and pushes the trigger piston 12 to move to the right inside the sleeve 11, causing the first sealing part 121 to move and expose the output hole 112 on the sleeve 11. At this time, the inlet hole 111 and the output hole 112 located on the left side of the first sealing part 121 are connected through the second liquid passage 52. The high-pressure liquid in the pressure storage device 2 passes through the output hole 112 and is sprayed out from the spraying device 4 to extinguish the fire.

[0082] A second sealing part 122 is provided on the right side of the trigger piston 12 away from the first sealing part 121. The first liquid passage 51 is formed by the space enclosed by the inner wall of the right side of the sleeve 11, the first sealing part 121, the outer wall of the trigger piston 12, and the second sealing part 122. Taking the first sealing part 121, the second sealing part 122, and the trigger piston 12 as cylindrical as an example, the diameters of the first sealing part 121 and the second sealing part 122 are larger than the diameter of the trigger piston 12 and are tightly fitted to the inner wall of the sleeve 11, thereby forming the first liquid passage 51. This facilitates the passage of high-pressure liquid and also optimizes the prevention of high-pressure liquid from flowing out from the position where the trigger piston 12 extends out of the sleeve 11 when passing through the first liquid passage 51.

[0083] A third sealing part 123 is provided on the left side of the trigger piston 12 away from the first sealing part 121. The second liquid passage 52 is formed by the space enclosed by the left inner wall of the sleeve 11, the first sealing part 121, the outer wall of the trigger piston 12, and the third sealing part 123. Taking the first sealing part 121, the third sealing part 123, and the trigger piston 12 as cylindrical, the diameters of the first sealing part 121 and the third sealing part 123 are larger than the diameter of the trigger piston 12 and are tightly fitted to the inner wall of the sleeve 11, thereby forming the second liquid passage 52. This facilitates the passage of high-pressure liquid and also optimizes the prevention of high-pressure liquid from flowing out from the position where the trigger piston 12 extends out of the sleeve 11 when passing through the second liquid passage 52.

[0084] The shock wave receiving and sensing device 3 consists of a shock wave receiver 31 and a push rod 32, one end of which is connected to the shock wave receiver 31 and the other end of which is connected to the trigger piston 12. The shock wave is received by the shock wave receiver 31, and under the action of the shock wave, the push rod 32 pushes the trigger piston 12 to move within the sleeve 11.

[0085] The high-pressure fire extinguishing liquid stored in the pressure storage device 2 can be high-pressure carbon dioxide liquid, high-pressure liquid nitrogen, or a mixture of high-pressure gas and water, etc.

[0086] Eighth embodiment

[0087] As attached Figure 10 As shown, a novel automatic explosion-proof device includes a triggering device 1, a pressure-storing liquid storage device 2 containing high-pressure fire extinguishing liquid, a shock wave receiving and sensing device 3, and a spraying device 4. The triggering device 1 includes a sleeve 11 and a triggering piston 12 disposed within the sleeve 11. The sleeve 11 is provided with an inlet hole 111 and an outlet hole 112. The pressure-storing liquid storage device 2 is connected to the inlet hole 111, and the spraying device 4 is connected to the outlet hole 112. The triggering piston 12 is provided with a first sealing part 121. One end of the triggering piston 12 is connected to the shock wave receiving and sensing device 3. The first sealing part 121 simultaneously blocks the inlet hole 111 and the outlet hole 112. A liquid passage 5 is provided inside the sleeve 11. The other end of the triggering piston 12 is connected to the shock wave receiving and sensing device 3. The liquid passage 5 consists of a first liquid passage 51 and a second liquid passage 52, disposed on both sides of the first sealing part 121.

[0088] When the shock wave arrives from the right, the shock wave receiving and sensing device 3 connected to the right end of the trigger piston 12 receives the force of the shock wave and pushes the trigger piston 12 to move to the left inside the sleeve 11, causing the first sealing part 121 to move and expose the inlet hole 111 and the outlet hole 112 on the sleeve 11. At this time, the inlet hole 111 and the outlet hole 112 are connected through the first liquid passage 51. The high-pressure liquid in the pressure storage device 2 passes through the inlet hole 111, the first liquid passage 51 and the outlet hole 112, and is sprayed out from the spraying device 4 to extinguish the fire. If the shock wave comes from the left, the shock wave receiving sensor 3 connected to the left end of the trigger piston 12 receives the force of the shock wave and pushes the trigger piston 12 to move to the right inside the sleeve 11, causing the first sealing part 121 to move and expose the inlet hole 111 and the outlet hole 112 on the sleeve 11. At this time, the inlet hole 111 and the outlet hole 112 are connected through the second liquid passage 52. The high-pressure liquid in the pressure storage device 2 passes through the inlet hole 111, the second liquid passage 52 and the outlet hole 112 and is sprayed out from the spraying device 4 to extinguish the fire.

[0089] A second sealing part 122 is provided on the right side of the trigger piston 12 away from the first sealing part 121. The first liquid passage 51 is formed by the space enclosed by the inner wall of the right side of the sleeve 11, the first sealing part 121, the outer wall of the trigger piston 12, and the second sealing part 122. Taking the first sealing part 121, the second sealing part 122, and the trigger piston 12 as cylindrical as an example, the diameters of the first sealing part 121 and the second sealing part 122 are larger than the diameter of the trigger piston 12 and are tightly fitted to the inner wall of the sleeve 11, thereby forming the first liquid passage 51. This facilitates the passage of high-pressure liquid and also optimizes the prevention of high-pressure liquid from flowing out from the position where the trigger piston 12 extends out of the sleeve 11 when passing through the first liquid passage 51.

[0090] A third sealing part 123 is provided on the left side of the trigger piston 12 away from the first sealing part 121. The second liquid passage 52 is formed by the space enclosed by the left inner wall of the sleeve 11, the first sealing part 121, the outer wall of the trigger piston 12, and the third sealing part 123. Taking the first sealing part 121, the third sealing part 123, and the trigger piston 12 as cylindrical, the diameters of the first sealing part 121 and the third sealing part 123 are larger than the diameter of the trigger piston 12 and are tightly fitted to the inner wall of the sleeve 11, thereby forming the second liquid passage 52. This facilitates the passage of high-pressure liquid and also optimizes the prevention of high-pressure liquid from flowing out from the position where the trigger piston 12 extends out of the sleeve 11 when passing through the second liquid passage 52.

[0091] The shock wave receiving and sensing device 3 consists of a shock wave receiver 31 and a push rod 32, one end of which is connected to the shock wave receiver 31 and the other end of which is connected to the trigger piston 12. The shock wave is received by the shock wave receiver 31, and under the action of the shock wave, the push rod 32 pushes the trigger piston 12 to move within the sleeve 11.

[0092] The high-pressure fire extinguishing liquid stored in the pressure storage device 2 can be high-pressure carbon dioxide liquid, high-pressure liquid nitrogen, or a mixture of high-pressure gas and water, etc.

[0093] Ninth embodiment

[0094] As attached Figure 11 As shown, taking the first sealing part 121 blocking the inlet hole 111 as an example, a novel automatic explosion-proof device includes a triggering device 1, a pressure-storing liquid storage device 2 storing high-pressure fire extinguishing liquid, a shock wave receiving and sensing device 3, and a spraying device 4. The triggering device 1 includes a sleeve 11 and a triggering piston 12 disposed within the sleeve 11. The sleeve 11 is provided with an inlet hole 111 and an outlet hole 112. The pressure-storing liquid storage device 2 communicates with the inlet hole 111, and the spraying device 4 communicates with the outlet hole 112. The triggering piston 12 is provided with a first sealing part 121, and one end of the triggering piston 12 is connected to the shock wave receiving and sensing device 3. The first sealing part 121 blocks the inlet hole 111. The sleeve 11 is provided with a liquid passage 5. The other end of the trigger piston 12 is connected to the shock wave receiving sensor 3. The liquid passage 5 is composed of a first liquid passage 51 and a second liquid passage 52, which are provided on both sides of the first sealing part 121. There are two output holes 112 on the sleeve 11, which are provided on both sides of the first sealing part 121 and communicate with the second liquid passage 52 and the first liquid passage 51, respectively. The second liquid passage 52 and the first liquid passage 51 are formed by through holes on the left and right sides of the first sealing part 121 and provided on the trigger piston 12.

[0095] When the shock wave arrives from the right, the shock wave receiving and sensing device 3 connected to the right end of the trigger piston 12 receives the force of the shock wave and pushes the trigger piston 12 to move to the left inside the sleeve 11, causing the first sealing part 121 to move and expose the inlet hole 111 on the sleeve 11. At this time, the inlet hole 111 and the outlet hole 112 located on the right side of the first sealing part 121 are connected through the first liquid passage 51. The high-pressure liquid in the pressure storage device 2 passes through the inlet hole 111, the first liquid passage 51 and the outlet hole 112 and is sprayed out from the spraying device 4 to extinguish the fire. If the shock wave comes from the left, the shock wave receiving sensor 3 connected to the left end of the trigger piston 12 receives the force of the shock wave and pushes the trigger piston 12 to move to the right inside the sleeve 11, causing the first sealing part 121 to move and expose the inlet hole 111 on the sleeve 11. At this time, the inlet hole 111 and the outlet hole 112 located on the left side of the first sealing part 121 are connected through the second liquid passage 52. The high-pressure liquid in the pressure storage device 2 passes through the inlet hole 111, the second liquid passage 52 and the outlet hole 112 and is sprayed out from the spraying device 4 to extinguish the fire.

[0096] The shock wave receiving and sensing device 3 consists of a shock wave receiver 31 and a push rod 32, one end of which is connected to the shock wave receiver 31 and the other end of which is connected to the trigger piston 12. The shock wave is received by the shock wave receiver 31, and under the action of the shock wave, the push rod 32 pushes the trigger piston 12 to move within the sleeve 11.

[0097] The high-pressure fire extinguishing liquid stored in the pressure storage device 2 can be high-pressure carbon dioxide liquid, high-pressure liquid nitrogen, or a mixture of high-pressure gas and water, etc.

[0098] Tenth embodiment

[0099] As attached Figure 12As shown, a novel automatic explosion-proof device, based on the first embodiment, includes at least two pressure-storing liquid storage devices 2 and at least two spraying devices 4, each storing high-pressure extinguishing liquid. The pressure-storing liquid storage devices 2 are connected in parallel via T-joints 6, and each parallel connection pipeline is equipped with a check valve 7 and a shut-off valve 8. The spraying devices 4 are also connected in parallel via T-joints 6. The parallel design of multiple pressure-storing liquid storage devices 2 increases the quantity of extinguishing medium, correspondingly increasing the extinguishing time. The parallel design of multiple spraying devices increases the extinguishing range. A check valve 7 is installed on the pipeline connecting the pressure storage device 2 and the inlet port 111 to prevent backflow of high-pressure liquid. A shut-off valve 8 is installed to control the high-pressure liquid in the pressure storage device 2 to be in a state ready to be sprayed or a state prohibited from spraying. For example, closing the shut-off valve 8 during transportation can effectively prevent the trigger piston 12 from moving the first sealing part 121 under bumpy conditions, causing the inlet port 111 to connect with the outlet port 112 and resulting in the high-pressure liquid being sprayed out. Or, when pressurizing and filling the pressure storage device 2, it can prevent accidental contact that causes the trigger piston 12 to move the first sealing part 121, causing the inlet port 111 to connect with the outlet port 112 and resulting in the high-pressure liquid being sprayed out.

[0100] The second, third, fourth and fifth embodiments omit structural diagrams in the working state, but the working principle can be referred to the first embodiment.

[0101] The seventh, eighth, ninth and tenth embodiments omit the structural diagrams in the working state, but the working principle can be referred to the sixth embodiment.

[0102] The spraying device 4 and the shock wave receiver 31 are existing technologies.

[0103] The connection between the trigger piston 12 and the sleeve 11 inside the triggering device 1 is sealed with sealing materials such as sealing rings 9 or sealing gaskets, so that no high-pressure liquid will leak out when it is not in operation, and it will not be sprayed out from a position other than the spraying device 4 when it is in operation.

[0104] The pressure storage and liquid storage device 2 and the inlet port 111, as well as the spraying device 4 and the outlet port 112, can be connected by pipelines.

[0105] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel automatic explosion-proof device, comprising a triggering device (1), a pressure storage and liquid storage device (2), a shock wave receiving and sensing device (3), and a spraying device (4), characterized in that: The triggering device (1) includes a sleeve (11) and a triggering piston (12) disposed in the sleeve (11). The sleeve (11) is provided with an inlet hole (111) and an outlet hole (112). The triggering piston (12) is provided with a first sealing part (121). One end of the triggering piston (12) is connected to the shock wave receiving and sensing device (3). The first sealing part (121) can block the inlet hole (111) or block the outlet hole (112) or block both the inlet hole (111) and the outlet hole (112) at the same time. The pressure storage and liquid storage device (2) is connected to the inlet hole (111). The spraying device (4) is connected to the outlet hole (112). The sleeve (11) is provided with a liquid passage (5).

2. A novel automatic flameproof device according to claim 1, characterized in that: The other end of the trigger piston (12) is connected to the shock wave receiving sensor (3), and the liquid passage (5) is divided into a first liquid passage (51) and a second liquid passage (52), which are located on both sides of the first sealing part (121).

3. A novel automatic flameproof device as claimed in claim 1, wherein: The liquid passage (5) is formed by the space enclosed by the inner wall of the sleeve (11), the first sealing part (121), and the outer wall of the trigger piston (12).

4. A novel automatic flameproof device as claimed in claim 1, wherein: A second sealing part (122) is provided on the right side of the trigger piston (12) away from the first sealing part (121). The liquid channel (5) is composed of the space enclosed by the inner wall of the right side of the sleeve (11), the first sealing part (121), the outer wall of the trigger piston (12), and the second sealing part (122).

5. A novel automatic flameproof device as claimed in claim 1, wherein: The liquid passage (5) is a through hole provided on the trigger piston (12).

6. A novel automatic flameproof device as claimed in claim 2, wherein: On the trigger piston (12), a third sealing part (123) and a second sealing part (122) are provided on both sides away from the first sealing part (121). The first liquid passage (51) is formed by the space enclosed by the inner wall of the right side of the sleeve (11), the first sealing part (121), the outer wall of the trigger piston (12), and the second sealing part (122). The second liquid passage (52) is formed by the space enclosed by the inner wall of the left side of the sleeve (11), the first sealing part (121), the outer wall of the trigger piston (12), and the third sealing part (123).

7. A novel automatic flameproof device as claimed in claim 2, wherein: The second liquid passage (52) and the first liquid passage (51) are through holes located on the left and right sides of the first sealing part (121) and provided on the trigger piston (12).

8. A new automatic flameproof device according to claim 2, characterized in that: The first sealing part (121) blocks the inlet hole (111), and the outlet hole (112) on the sleeve (11) is connected to the first liquid passage (51) and the second liquid passage (52) respectively.

9. A new automatic flameproof device according to claim 2, characterized in that: The first sealing part (121) blocks the output hole (112), and the inlet hole (111) on the sleeve (11) is connected to the first liquid passage (51) and the second liquid passage (52) respectively.

10. A novel automatic explosion-proof device according to any one of claims 1 to 9, characterized in that: The shock wave receiving and sensing device (3) consists of a shock wave receiver (31) and a push rod (32) with one end connected to the shock wave receiver (31) and the other end connected to the trigger piston (12).

11. A new automatic flameproof device according to any one of claims 1 to 9, characterized by the fact that: The high-pressure fire extinguishing liquid stored in the pressure storage device (2) is a mixture of high-pressure gas and water, or high-pressure liquid nitrogen or high-pressure carbon dioxide liquid.

12. A new automatic flameproof device according to any one of claims 1 to 9, characterized by the fact that: There are at least two of the pressure storage and liquid storage device (2) and the spraying device (4).

13. A novel automatic flameproof device as claimed in claim 12, wherein: The pressure storage and liquid storage device (2) is connected in parallel through a three-way connector (6), and a check valve (7) and a shut-off valve (8) are respectively installed on each parallel connecting pipeline. The spraying device (4) is connected in parallel through a three-way connector (6).

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