Normally Open Lithium-Ion Battery-Operated Gas Emergency Shut-off Valve

Abstract

This application relates to the field of valves and discloses a normally open lithium battery-powered gas emergency cut-off valve, which includes a valve body. A cut-off mechanism is provided at the top of the valve body, and the cut-off mechanism is connected to a valve block mounting plate. An electromagnetic control mechanism is fixedly connected to the top of the valve block mounting plate. The cut-off mechanism includes a valve cover. A sealing steel pipe is fixedly connected to the top of the valve cover. A hinge pull rod is slidably connected inside the sealing steel pipe. A first compression spring is fixedly connected to the bottom of the valve cover. A sealing top ring is fixedly connected to the bottom of the first compression spring. The top of the sealing top ring is connected to the bottom of the sealing steel pipe by a set screw. By providing a battery, it can be powered by the battery, so there is no need to worry about the problem that it cannot be used after a power outage, avoiding the occurrence of potential safety hazards. At the same time, an antenna is used for signal connection, which can save signal wires, greatly expand the application places of the solenoid valve, and avoid the situation of power outage in the place or the failure of the gas leakage monitoring device.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a normally open lithium battery fuel gas emergency shut-off valve. Background Art

[0002] Gas is a commonly used energy source. The combustibility of gas can release heat for people to use, and the safety requirements for gas use are also very high. The gas emergency shut-off valve is a safety supporting device in gas pipeline engineering. It is used in the field of gas transmission and distribution. It can cut off the pipeline when abnormalities occur in gas transmission to ensure the safety of gas transmission and use. The normally open gas emergency shut-off valve is a type of gas emergency shut-off valve.

[0003] At present, the normally open gas emergency shut-off valve requires an external power supply. When the valve is open, the coil is in a power-off state. When a leakage accident occurs, the coil is instantly energized, the moving iron core is magnetized and the static iron core is attracted, the connecting rod loses support, and under the action of the spring and the gravity of the piston, the valve port is quickly closed, the gas source is cut off, and it enters a self-locking state.

[0004] The normally open gas emergency shut-off valve commonly used in the prior art requires an external power supply, and a power line needs to be laid in a remote installation location. In addition, when there is a sudden power outage at the gas supply site, the solenoid valve cannot work, which may pose a threat to the user's personal safety and property. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a normally open lithium battery gas emergency shut-off valve, which solves the problem that the solenoid valve cannot work when the power is off, which may pose a threat to the personal safety and property of the user.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a normally open lithium battery gas emergency shut-off valve, comprising a valve body, a shut-off mechanism is arranged on the top of the valve body, the shut-off mechanism is connected to a valve block mounting plate, and an electromagnetic control mechanism is fixedly connected to the top of the valve block mounting plate;

[0007] The cutting mechanism includes a valve cover, the top of the valve cover is fixedly connected to a sealing steel pipe, the inside of the sealing steel pipe is slidably connected to a hinge pull rod, the bottom of the valve cover is fixedly connected to a compression spring 1, the bottom of the compression spring 1 is fixedly connected to a sealing top ring, the top of the sealing top ring is connected to the bottom of the sealing steel pipe by a top screw, the top of the sealing top ring is fixedly connected to a compression spring 1, the bottom of the sealing top ring is slidably connected to a sealing ring, the bottom of the sealing ring is fixedly connected to a conical spring, the bottom of the conical spring is fixedly connected to a daisy retaining ring, the outer side of the sealing ring is snap-connected with a sealing gasket, and the chrysanthemum retaining ring is slidably connected to the bottom of the sealing top ring.

[0008] Preferably, the electromagnetic control mechanism includes an electromagnetic coil. Inside the electromagnetic coil, there is a sealed guide tube. A sliding connection is provided between the inside of the sealed guide tube and an electromagnet. On the left side inside the electromagnet, a second compression spring is fixedly connected. On the right side inside the electromagnetic coil, there is a mounting post. A screw is threadedly connected to the right side of the mounting post. The right side of the second compression spring is fixedly connected to the left side of the mounting post. On the top of the electromagnetic coil, a pressure sensor is threadedly connected. On the top of the pressure sensor, a pressure control and recording housing is threadedly connected. On the top of the pressure control and recording housing, an antenna is fixedly connected. Inside the pressure control and recording housing, a battery is provided. At the rear of the electromagnetic coil, a pressure transfer joint is fixedly connected. At the rear of the pressure transfer joint, a pressure tube is fixedly connected. The other end of the pressure tube is threadedly connected to the rear side of the valve body.

[0009] Preferably, a hand-tightening nut is threadedly connected to the top of the hinge pull rod, and a sealing cap is provided on the top of the sealed steel pipe.

[0010] Preferably, an O-ring III is provided at the outer top of the sealing cap, and an annular ring is provided between the valve cover and the valve body.

[0011] Preferably, an O-ring II is provided on the outer middle of the hinge pull rod, and an O-ring I is provided at the outer bottom of the sealed top ring.

[0012] Preferably, a washer I is provided between the sealed guide tube and the electromagnetic coil, and a circular ring is provided between both the sealed guide tube and the electromagnetic coil and between the sealed guide tube and the sealed steel pipe.

[0013] Preferably, a washer II is provided between the screw and the electromagnetic coil. The top of the valve block mounting plate is fixedly connected to the bottom of the electromagnetic coil through a fixing bolt, and a support bolt is threadedly connected to the middle of the valve block mounting plate.

[0014] Preferably, the valve block mounting plate and the valve cover are fixedly connected through a plurality of set screws, and the valve cover is fixedly connected to the top of the valve body through bolts.

[0015] Preferably, plugs are fixedly connected to both the left and right sides of the valve body. A power signal line is threadedly connected to the front side of the pressure control and recording housing, and the other end of the power signal line is threadedly connected to the top of the electromagnetic coil

[0016] Preferably, the electromagnetic coil and the battery are connected through the power signal line, and the antenna and the battery are electrically connected.

[0017] Working principle: After the gas is introduced into the normally open lithium battery gas emergency cut-off valve of the valve body, the gas will be introduced from the normally open lithium battery gas emergency cut-off valve of the pressure pipe into the pressure adapter normally open lithium battery gas emergency cut-off valve, and then through the pressure adapter normally open lithium battery gas emergency cut-off valve to the pressure sensor normally open lithium battery gas emergency cut-off valve. When the pressure signal drop value collected by the pressure sensor normally open lithium battery gas emergency cut-off valve exceeds the critical range, the pressure control record housing normally open lithium battery gas emergency cut-off valve and its internal circuit board will control the antenna normally open lithium battery gas emergency cut-off valve to send a signal. The signal on the antenna normally open lithium battery gas emergency cut-off valve can control the electromagnetic coil normally open lithium battery gas emergency cut-off valve to be energized, and the power supply is provided by the battery normally open lithium battery gas emergency cut-off valve, so that suction can be generated and the electromagnet normally open lithium battery gas emergency cut-off valve can be attracted, so that the electromagnet normally open lithium battery gas emergency cut-off valve moves to the right, and then can be disengaged from the hinge rod normally open lithium battery gas emergency cut-off valve. At this time, since the hinge rod normally open lithium battery gas emergency cut-off valve is not restricted by the electromagnet normally open lithium battery gas emergency cut-off valve, it will drive the sealing top ring normally open lithium battery gas emergency cut-off valve to move downward under the action of the compression spring 1 normally open lithium battery gas emergency cut-off valve. After the sealing top ring normally open lithium battery gas emergency cut-off valve moves downward, it can drive the sealing ring normally open lithium battery gas emergency cut-off valve to move downward, so as to drive the sealing gasket normally open lithium battery gas emergency cut-off valve installed on the sealing ring normally open lithium battery gas emergency cut-off valve to move downward, and then can block the opening for the valve body normally open lithium battery gas emergency cut-off valve to pass gas, and then can cut off the gas path to prevent danger from occurring after air leakage. At the same time, the cut-off valve is powered by the battery normally open lithium battery gas emergency cut-off valve, so there is no need for an external power supply, so there is no need to worry about power outages. And by sending signals through the antenna normally open lithium battery gas emergency cut-off valve, the signal wire is saved, greatly improving the application places of the solenoid valve. At the same time, when the pressure signal drop value collected by the solenoid valve through pressure analysis integration exceeds the critical range, it can automatically perform actions and upload data, avoiding the situation of power outage in the place or the failure of the gas leakage monitoring device. When it is necessary to return the sealing top ring normally open lithium battery gas emergency cut-off valve, first pull out the sealing cap normally open lithium battery gas emergency cut-off valve and pull up the hand-tightening nut normally open lithium battery gas emergency cut-off valve, so as to drive the hinge rod normally open lithium battery gas emergency cut-off valve to move upward. After the hinge rod normally open lithium battery gas emergency cut-off valve moves upward, it can drive the sealing top ring normally open lithium battery gas emergency cut-off valve to move upward. The upward movement of the sealing top ring normally open lithium battery gas emergency cut-off valve can drive the sealing ring normally open lithium battery gas emergency cut-off valve to move upward, so as to open the valve, and the compression spring 1 normally open lithium battery gas emergency cut-off valve can be compressed through the sealing top ring normally open lithium battery gas emergency cut-off valve. At this time, the power supply of the electromagnetic coil normally open lithium battery gas emergency cut-off valve is disconnected, so that the electromagnet normally open lithium battery gas emergency cut-off valve loses suction,Furthermore, under the action of the compression spring two-normally open lithium battery-powered gas emergency cut-off valve, the electromagnetic iron normally open lithium battery-powered gas emergency cut-off valve can be pushed to the left, so that the left side of the electromagnetic iron normally open lithium battery-powered gas emergency cut-off valve can be engaged with the groove on the hinge rod normally open lithium battery-powered gas emergency cut-off valve, and then the opening of the valve can be completed.

[0018] The present invention provides a normally open lithium battery-powered gas emergency cut-off valve, which has the following beneficial effects:

[0019] 1. Through the cut-off mechanism and the electromagnetic control mechanism, the present invention realizes the cut-off of the gas path. At the same time, since a battery is provided, the battery can be used for power supply, so there is no need to worry about the problem that it cannot be used after a power failure, avoiding the occurrence of potential safety hazards. At the same time, an antenna can be used for signal connection, thereby saving signal wires and greatly expanding the application scenarios of the solenoid valve.

[0020] 2. Through the composition of structures such as an electromagnetic coil, a sealing guide tube, an electromagnet, a compression spring two, and an antenna, the present invention realizes that after the pressure signal drop value collected exceeds the critical range, it can automatically perform actions and upload data, avoiding the situation of power failure at the site or malfunction of the gas leakage monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front sectional view of the present invention;

[0022] Figure 2 is Figure 1 the enlarged view of part A in

[0023] Figure 3 is Figure 2 the enlarged view of part B in

[0024] Figure 4 is the left sectional view of the present invention;

[0025] Figure 5 is the front view of the present invention;

[0026] Figure 6 is the right view of the present invention;

[0027] Figure 7 is the rear view of the present invention.

[0028] Among them, 1. Valve body; 2. Cutting mechanism; 201. Valve cover; 202. Sealed steel pipe; 203. Hinge pull rod; 204. Sealing top ring; 205. Compression spring I; 206. Sealing ring; 207. Conical spring; 208. Chrysanthemum retaining ring; 209. Set screw; 210. Sealing gasket; 211. O-ring I; 212. O-ring II; 213. Hand-tightening nut; 214. Sealing cap; 215. O-ring III; 216. Annular ring; 3. Electromagnetic control mechanism; 301. Electromagnetic coil; 302. Sealed guide tube; 303. Electromagnet; 304. Compression spring II; 305. Mounting post; 306. Screw; 307. Washer I; 308. Washer II; 309. Ring circle; 310. Pressure sensor; 311. Pressure control and recording housing; 312. Antenna; 313. Battery; 314. Pressure pipe; 315. Pressure adapter; 316. Fixed bolt; 317. Support bolt; 318. Power signal line; 4. Valve block mounting plate; 5. Set bolt; 6. Plugging. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment:

[0031] Please refer to the attached Figure 1 - attached Figure 7 , the present invention provides a normally open lithium battery gas emergency cut-off valve in an embodiment, including a valve body 1. A cutting mechanism 2 is arranged at the top of the valve body 1. The cutting mechanism 2 is connected to a valve block mounting plate 4. A top of the valve block mounting plate 4 is fixedly connected with an electromagnetic control mechanism 3;

[0032] The gas passage can be carried out through the valve body 1. The circuit can be cut off through the cutting mechanism 2. The electromagnetic control mechanism 3 can control the valve to close, so as to ensure the normal closing of the valve body 1, and thus ensure the safety of the user's person and property.

[0033] The cutting mechanism 2 includes a valve cover 201. A sealing steel pipe 202 is fixedly connected to the top of the valve cover 201. A hinge pull rod 203 is slidably connected inside the sealing steel pipe 202. A first compression spring 205 is fixedly connected to the bottom of the valve cover 201. A sealing top ring 204 is fixedly connected to the bottom of the first compression spring 205. The top of the sealing top ring 204 is connected to the bottom of the sealing steel pipe 202 by a setscrew 209. A first compression spring 205 is fixedly connected to the top of the sealing top ring 204. A sealing ring 206 is slidably connected to the bottom of the sealing top ring 204. A conical spring 207 is fixedly connected to the bottom of the sealing ring 206. A chrysanthemum retaining ring 208 is fixedly connected to the bottom of the conical spring 207. A sealing gasket 210 is snap-fitted to the outside of the sealing ring 206. The chrysanthemum retaining ring 208 is slidably connected to the bottom of the sealing top ring 204.

[0034] When in use, first pull out the sealing cap 214 and pull up the hand-tightening nut 213, which can drive the hinge pull rod 203 to move upward. After the hinge pull rod 203 moves upward, it can drive the sealing top ring 204 to move upward. The upward movement of the sealing top ring 204 can drive the sealing ring 206 to move upward, thereby opening the valve. And the first compression spring 205 can be compressed through the sealing top ring 204, and the electromagnetic coil 301 is powered off, so that the second compression spring 304 can push the electromagnet 303 to move to the left, thereby engaging with the hinge pull rod 203, and further preventing the hinge pull rod 203 from moving downward. The function of the sealing ring 206 is to block the valve body 1, and the function of the sealing gasket 210 is to increase the sealing performance.

[0035] Please refer to the attached Figure 1 - attached Figure 4 The electromagnetic control mechanism 3 includes an electromagnetic coil 301. A sealing guide tube 302 is arranged inside the electromagnetic coil 301. An electromagnet 303 is slidably connected inside the sealing guide tube 302. A second compression spring 304 is fixedly connected to the left side inside the electromagnet 303. An installation post 305 is arranged on the right side inside the electromagnetic coil 301. A screw 306 is threadedly connected to the right side of the installation post 305. The right side of the second compression spring 304 is fixedly connected to the left side of the installation post 305. A pressure sensor 310 is threadedly connected to the top of the electromagnetic coil 301. A pressure control and recording housing 311 is threadedly connected to the top of the pressure sensor 310. An antenna 312 is fixedly connected to the top of the pressure control and recording housing 311. A battery 313 is arranged inside the pressure control and recording housing 311. A pressure adapter 315 is fixedly connected to the rear side of the electromagnetic coil 301. A pressure pipe 314 is fixedly connected to the rear side of the pressure adapter 315. The other end of the pressure pipe 314 is threadedly connected to the rear side of the valve body 1.

[0036] When cutting is required, first, gas is introduced into the valve body 1. Then, the gas will pass through the pressure pipe 314 into the pressure adapter 315 and reach the pressure sensor 310 through the pressure adapter 315. When the pressure signal drop value collected by the pressure sensor 310 exceeds the critical range, the pressure control recording housing 311 and the circuit board inside it will control the antenna 312 to send a signal. Through the signal on the antenna 312, the electromagnetic coil 301 can be controlled to be energized, and the power supply is provided by the battery 313, so that suction can be generated and the electromagnet 303 can be attracted, causing the electromagnet 303 to move to the right, and then the engagement with the hinge rod 203 can be released. At this time, since the hinge rod 203 is not restricted by the electromagnet 303, it will drive the sealing top ring 204 to move downward under the action of the compression spring 205. After the sealing top ring 204 moves downward, it can drive the sealing ring 206 to move downward, and then drive the gasket 210 installed on the sealing ring 206 to move downward, thus blocking the opening for gas passage in the valve body 1. Inside the pressure control recording housing 311, there is not only the battery 313 but also a circuit board. The pressure control recording housing 311 mainly provides an installation position, and the pressure pipe 314 can play a role in connecting the gas path, enabling the pressure sensor 310 to function.

[0037] Please refer to the appendix Figure 1 , a hand-tightening nut 213 is threadedly connected to the top of the hinge rod 203, and a sealing cap 214 is provided at the top of the sealing steel pipe 202.

[0038] The hand-tightening nut 213 facilitates the user to pull it up. The function of the sealing cap 214 is to be able to place the hand-tightening nut 213 inside, thus preventing accidental contact with the hinge rod 203.

[0039] Please refer to the appendix Figure 1 , an O-ring III 215 is provided at the outer top end of the sealing cap 214, and an annular ring 216 is provided between the valve cover 201 and the valve body 1.

[0040] Through the O-ring III 215, the friction between the sealing cap 214 and the sealing steel pipe 202 can be increased, preventing the sealing cap 214 from falling, and at the same time increasing the sealing performance. Through the annular ring 216, the sealing performance between the valve body 1 and the valve cover 201 can be increased.

[0041] Please refer to the appendix Figure 1 - Appendix Figure 2 , an O-ring II 212 is provided on the outer middle part of the hinge rod 203, and an O-ring I 211 is provided at the outer bottom end of the sealing top ring 204.

[0042] Through the O-ring II 212, the sealing performance between the hinge rod 203 and the sealing steel pipe 202 can be increased, and at the same time, through the O-ring I 211, the sealing performance between the sealing ring 206 and the sealing top ring 204 can be increased.

[0043] A washer 307 is provided between the sealed guide tube 302 and the electromagnetic coil 301, and a circular ring 309 is provided between both the sealed guide tube 302 and the electromagnetic coil 301 and between the sealed guide tube 302 and the sealed steel pipe 202.

[0044] Please refer to the appendix Figure 3 - appendix Figure 4 A washer 308 is provided between the screw 306 and the electromagnetic coil 301. The top of the valve block mounting plate 4 is fixedly connected to the bottom of the electromagnetic coil 301 through a fixing bolt 316, and a support bolt 317 is threadedly connected to the middle of the valve block mounting plate 4.

[0045] The function of the washer 308 is to make the screw 306 tightened more tightly and at the same time increase the blocking area.

[0046] Please refer to the appendix Figure 1 - appendix Figure 4 The valve block mounting plate 4 and the valve cover 201 are fixedly connected through a plurality of set bolts 5, and the valve cover 201 is fixedly connected to the top of the valve body 1 through bolts.

[0047] Please refer to the appendix Figure 1 - appendix Figure 5 Blocking plugs 6 are fixedly connected to both the left and right sides of the valve body 1. A power signal line 318 is threadedly connected to the front side of the pressure control recording housing 311, and the other end of the power signal line 318 is threadedly connected to the top of the electromagnetic coil 301.

[0048] Please refer to the appendix Figure 4 - appendix Figure 5 The electromagnetic coil 301 and the battery 313 are connected through the power signal line 318, and the antenna 312 and the battery 313 are electrically connected.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Normally open lithium battery gas emergency cut-off valve, including a valve body (1), characterized in that, A cutting mechanism (2) is provided at the top of the valve body (1). The cutting mechanism (2) is connected to the valve block mounting plate (4), and an electromagnetic control mechanism (3) is fixedly connected to the top of the valve block mounting plate (4). The cutting mechanism (2) includes a valve cover (201). A sealing steel pipe (202) is fixedly connected to the top of the valve cover (201). A hinge pull rod (203) is slidably connected inside the sealing steel pipe (202). A first compression spring (205) is fixedly connected to the bottom of the valve cover (201). A sealing top ring (204) is fixedly connected to the bottom of the first compression spring (205). The top of the sealing top ring (204) is connected to the bottom of the sealing steel pipe (202) by a setscrew (209). A first compression spring (205) is fixedly connected to the top of the sealing top ring (204). A sealing ring (206) is slidably connected to the bottom of the sealing top ring (204). A conical spring (207) is fixedly connected to the bottom of the sealing ring (206). A chrysanthemum retaining ring (208) is fixedly connected to the bottom of the conical spring (207). A sealing gasket (210) is snap-fitted to the outside of the sealing ring (206). The chrysanthemum retaining ring (208) is slidably connected to the bottom of the sealing top ring (204). The electromagnetic control mechanism (3) includes an electromagnetic coil (301). A sealing guide pipe (302) is provided inside the electromagnetic coil (301). An electromagnet (303) is slidably connected inside the sealing guide pipe (302). A second compression spring (304) is fixedly connected to the left side inside the electromagnet (303). An installation column (305) is provided on the right side inside the electromagnetic coil (301). A screw (306) is threadedly connected to the right side of the installation column (305). The right side of the second compression spring (304) is fixedly connected to the left side of the installation column (305). A pressure sensor (310) is threadedly connected to the top of the electromagnetic coil (301). A pressure control and recording housing (311) is threadedly connected to the top of the pressure sensor (310). An antenna (312) is fixedly connected to the top of the pressure control and recording housing (311). A battery (313) is provided inside the pressure control and recording housing (311). A pressure transfer joint (315) is fixedly connected to the rear side of the electromagnetic coil (301). A pressure pipe (314) is fixedly connected to the rear side of the pressure transfer joint (315). The other end of the pressure pipe (314) is threadedly connected to the rear side of the valve body (1).

2. The normally open lithium battery-powered gas emergency cut-off valve according to claim 1, characterized in that, A hand-tightening nut (213) is threadedly connected to the top of the hinge pull rod (203). A sealing cap (214) is provided at the top of the sealing steel pipe (202).

3. The normally open lithium battery-powered gas emergency cut-off valve according to claim 2, characterized in that, A third O-ring (215) is provided at the outer top end of the sealing cap (214). An annular ring (216) is provided between the valve cover (201) and the valve body (1).

4. The normally open lithium battery gas emergency cut-off valve according to claim 1, characterized in that A second O-ring (212) is provided on the outer middle part of the hinge pull rod (203). A first O-ring (211) is provided at the outer bottom end of the sealing top ring (204).

5. The normally open lithium battery-powered gas emergency cut-off valve according to claim 1, characterized in that, A washer one (307) is provided between the sealing guide tube (302) and the electromagnetic coil (301), and a circular ring (309) is provided between both the sealing guide tube (302) and the electromagnetic coil (301) and between the sealing guide tube (302) and the sealing steel pipe (202).

6. The normally open lithium battery-powered gas emergency cut-off valve according to claim 1, characterized in that, A washer two (308) is provided between the screw (306) and the electromagnetic coil (301). The top of the valve block mounting plate (4) is fixedly connected to the bottom of the electromagnetic coil (301) by a fixing bolt (316), and a support bolt (317) is threadedly connected to the middle of the valve block mounting plate (4).

7. The normally open lithium battery-powered gas emergency cut-off valve according to claim 1, wherein, The valve block mounting plate (4) and the valve cover (201) are fixedly connected by a plurality of set bolts (5), and the valve cover (201) is fixedly connected to the top of the valve body (1) by bolts.

8. The normally open lithium battery-powered gas emergency cut-off valve according to claim 1, characterized in that, Seals (6) are fixedly connected to both the left and right sides of the valve body (1). A power signal line (318) is threadedly connected to the front side of the pressure control recording housing (311), and the other end of the power signal line (318) is threadedly connected to the top of the electromagnetic coil (301).

9. The normally open lithium battery-powered gas emergency cut-off valve according to claim 1, wherein The electromagnetic coil (301) is connected to the battery (313) through the power signal line (318), and the antenna (312) is electrically connected to the battery (313).

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