Leak-proof gas emergency cut-off valve

Abstract

The utility model discloses a leakproof gas emergency shut-off valve, including valve tube, valve body, support frame, inductor, contact piece, valve plate, signal lamp, information board, handle and nut, contact piece is electrically connected to the right side of valve body inner side, the left side of valve plate is fixedly connected with spring, the left end of spring is fixedly connected with the left side of support frame inner side, and the right end of spring is fixedly connected with the left side of support frame inner side. A gear assembly is arranged on the front side of the inner side of the supporting frame, and a limiting assembly is arranged at the bottom of the valve plate. By arranging the spring, when gas in the valve pipe leaks, the valve plate breaks away from control, the spring breaks away from extrusion, then the spring releases pressure to drive the valve plate to be close to and make contact with the right side of the inner side of the valve body, and therefore leaked gas is intercepted, and the problem that gas supply is cut off when the valve pipe leaks gas, and the leakage of the gas is affected is solved. However, the valve plate cannot quickly cut off and intercept gas, so that the gas can be quickly leaked, and the potential safety hazard of dangerous explosion is caused.

Description

Technical Field

[0001] The utility model relates to the technical field of gas emergency cut-off valves, and particularly relates to a gas emergency cut-off valve for preventing leakage. Background Technique

[0002] Gas is the general term for gaseous fuels, which can burn to release heat for use by residents and industrial enterprises. There are many types of gas, mainly including natural gas, artificial gas, liquefied petroleum gas, biogas, and coal gas. When using gas, it is necessary to prevent its leakage, and when leakage occurs, the gas should be cut off in time to avoid danger caused by gas leakage.

[0003] For example, the application number is CN202222901884.0. The utility model relates to the technical field of gas emergency cut-off valves, and particularly relates to a signal feedback type gas emergency cut-off valve. By setting this device, it can automatically control the opening and closing of the valve plate, improve intelligence, and can judge whether the valve plate is completely closed by observing the color of the lit signal lamp; it includes a valve pipe, a valve body, a support frame, a motor, a screw rod, a sliding frame, a valve plate, a screw tube, an inductor, a contact piece, and a signal lamp. The valve body is installed on the valve pipe, the support frame is installed at the left end of the valve body, the motor is installed at the left end of the support frame, the left end of the screw rod is connected to the output end of the motor, the screw rod is rotatably connected to the support frame, the sliding frame is installed at the left part of the valve body, the valve plate is slidably connected to the sliding frame, the screw tube is installed inside the valve plate, the screw tube is threadedly connected to the screw rod, the inductor is installed at the right end of the valve body, the contact piece is installed at the right end inside the valve body, when the valve plate contacts the inductor, the signal lamp lights red, and when the valve plate does not contact the inductor, the signal lamp lights green.

[0004] Based on the retrieval of the above patent and the combination with the equipment in the prior art, it is found that although the above equipment can solve the problem that the conventional gas emergency cut-off valve is manually controlled and does not have a signal feedback function, so it is impossible to judge whether the gas emergency cut-off valve is completely closed, there is a potential safety hazard that during the use process, although the valve pipe will cut off the gas supply when gas leaks, the valve plate cannot quickly cut off and intercept, which may cause the gas to leak rapidly, leading to dangerous explosions. Content of the Utility Model

[0005] To solve the problems raised in the above background technique, the purpose of the present utility model is to provide a gas emergency cut-off valve for preventing leakage, which has the advantage of rapid interception of the valve plate, and solves the problem that although the valve pipe will cut off the gas supply when gas leaks, the valve plate cannot quickly cut off and intercept, which may cause the gas to leak rapidly, leading to a potential safety hazard of dangerous explosions.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A gas emergency cut-off valve with leak prevention, comprising a valve pipe, a valve body, a support frame, a sensor, a contact piece, a valve plate, a signal lamp, an information plate, a handle and a nut. The nuts are fixedly connected to both ends of the valve pipe, the valve body is fixedly connected to the surface of the valve pipe, the handle is fixedly connected to the right side of the surface of the valve pipe, the information plate is fixedly connected to the bottom of the left side of the surface of the valve pipe, the support frame is fixedly connected to the left side of the valve plate, the signal lamp is electrically connected to the front of the valve body, the sensor is electrically connected to the right side of the valve body, the contact piece is electrically connected to the right side inside the valve body, a spring is fixedly connected to the left side of the valve plate, and the left end of the spring is fixedly connected to the left side inside the support frame. A gear assembly is arranged on the front side inside the support frame, and a limiting assembly is arranged at the bottom of the valve plate.

[0007] Preferably, as the present utility model, the gear assembly includes a semi-gear and a toothed plate. The toothed plate is fixedly connected to the left side of the front of the valve plate, the semi-gear is arranged on the front side inside the support frame, and the semi-gear is meshed with the toothed plate.

[0008] Preferably, as the present utility model, the limiting assembly includes a slider and a chute. The chutes are respectively opened on both sides of the bottom inside the valve body, the sliders are fixedly connected to both sides of the bottom of the valve plate, and the sliders are slidably connected with the chutes.

[0009] Preferably, as the present utility model, a motor is fixedly connected to the front of the support frame, and a driving rod is fixedly connected to the output end of the motor. The rear end of the driving rod is fixedly connected to the front of the semi-gear.

[0010] Preferably, as the present utility model, a telescopic rod is fixedly connected to the left side inside the support frame, and the right end of the telescopic rod is fixedly connected to the left side of the valve plate.

[0011] Preferably, as the present utility model, a sealing gasket is fixedly connected to the left side of the top inside the valve body, and the top of the valve plate is slidably connected with the bottom of the sealing gasket.

[0012] Preferably, as the present utility model, a protective pad is fixedly connected to the right side of the valve plate, and the right side of the protective pad is movably connected with the right side inside the valve body.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The utility model solves the problem of potential safety hazards that when the valve tube leaks gas, the gas supply will be cut off, but the valve plate cannot quickly cut off and intercept, which may cause the gas to leak rapidly, leading to dangerous explosions. By setting a spring, when the valve tube leaks gas, the valve plate is disengaged from control, the spring is disengaged from extrusion, and then the spring releases pressure to drive the valve plate to move closer to the right side inside the valve body to contact and intercept the leaked gas, thus having the advantage of rapid interception of the valve plate.

[0015] 2. The utility model realizes the opening of the interception of the gas leakage of the valve tube by setting a gear assembly. By rotating the semi-gear, the semi-gear drives the toothed plate to move through meshing connection, and then the toothed plate drives the valve plate to move. At the same time, the valve plate drives the spring to approach and extrude the support frame. By setting a limiting assembly, when the toothed plate drives the valve plate and the spring releases pressure to drive the valve plate to move, the valve plate drives the slider to move inside the chute of the valve body, so that the slider and the chute cooperate to limit the movement of the valve plate.

[0016] 3. The utility model controls the rotation of the semi-gear by setting a motor and a driving rod. By starting the motor, the motor drives the driving rod to rotate, and then the driving rod drives the semi-gear to rotate. By setting a telescopic rod, the safety and stability of the spring are increased, so as to prevent the spring from being distorted and damaged during the extrusion process, thus effectively extending the service life of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 is a three-dimensional sectional structural schematic diagram of the valve body of the utility model;

[0019] Figure 3 is a three-dimensional exploded structural schematic diagram of the gear assembly of the utility model.

[0020] In the figure: 1. Valve tube; 2. Valve body; 3. Support frame; 4. Inductor; 5. Contact piece; 6. Raft plate; 7. Signal lamp; 8. Information plate; 9. Handle; 10. Nut; 11. Spring; 12. Gear assembly; 121. Semi-gear; 122. Toothed plate; 13. Limiting assembly; 131. Slider; 132. Chute; 14. Motor; 15. Driving rod; 16. Telescopic rod; 17. Sealing gasket; 18. Protective pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] As shown in Figures 1 to 3 the figure, a gas emergency cut-off valve with anti-leakage provided by the present invention includes a valve pipe 1, a valve body 2, a support frame 3, a sensor 4, a contact piece 5, a valve plate 6, a signal lamp 7, an information plate 8, a handle 9 and nuts 10. The nuts 10 are fixedly connected to both ends of the valve pipe 1. The valve body 2 is fixedly connected to the surface of the valve pipe 1. The handle 9 is fixedly connected to the right side of the surface of the valve pipe 1. The information plate 8 is fixedly connected to the bottom of the left side of the surface of the valve pipe 1. The support frame 3 is fixedly connected to the left side of the valve plate 6. The signal lamp 7 is electrically connected to the front of the valve body 2. The sensor 4 is electrically connected to the right side of the valve body 2. The contact piece 5 is electrically connected to the right side inside the valve body 2. A spring 11 is fixedly connected to the left side of the valve plate 6. The left end of the spring 11 is fixedly connected to the left side inside the support frame 3. A gear assembly 12 is arranged on the front side inside the support frame 3. A limit assembly 13 is arranged at the bottom of the valve plate 6.

[0023] Referring to Figure 3 , the gear assembly 12 includes a semi-gear 121 and a toothed plate 122. The toothed plate 122 is fixedly connected to the left side of the front of the valve plate 6. The semi-gear 121 is arranged on the front side inside the support frame 3. The semi-gear 121 is meshed with the toothed plate 122.

[0024] As a technical optimization scheme of the present invention, by setting the gear assembly 12, by rotating the semi-gear 121, the semi-gear 121 drives the toothed plate 122 to move through meshing connection, and then the toothed plate 122 drives the valve plate 6 to move. At the same time, the valve plate 6 drives the spring 11 to approach the support frame 3 for extrusion, so as to realize the opening of the gas leakage interception of the valve pipe 1.

[0025] Referring to Figure 2 , the limit assembly 13 includes a slider 131 and a chute 132. The chutes 132 are respectively opened on both sides of the bottom inside the valve body 2. The sliders 131 are fixedly connected to both sides of the bottom of the valve plate 6. The sliders 131 are slidably connected to the chutes 132.

[0026] As a technical optimization scheme of the present invention, by setting the limit assembly 13, when the toothed plate 122 drives the valve plate 6 and the spring 11 to release pressure and drive the valve plate 6 to move, the valve plate 6 drives the sliders 131 to move inside the chutes 132 inside the valve body 2, so that the sliders 131 and the chutes 132 cooperate to limit the movement of the valve plate 6.

[0027] Reference Figure 3 On the front of the support frame 3, a motor 14 is fixedly connected. The output end of the motor 14 is fixedly connected with a driving rod 15, and the rear end of the driving rod 15 is fixedly connected with the front of the semi-gear 121.

[0028] As a technical optimization scheme of the present utility model, by setting the motor 14 and the driving rod 15, after starting the motor 14, the motor 14 drives the driving rod 15 to rotate, and then the driving rod 15 drives the semi-gear 121 to rotate, so as to realize the control of the rotation of the semi-gear 121.

[0029] Reference Figure 1 On the left side inside the support frame 3, a telescopic rod 16 is fixedly connected. The right end of the telescopic rod 16 is fixedly connected with the left side of the valve plate 6.

[0030] As a technical optimization scheme of the present utility model, by setting the telescopic rod 16, the safety and stability of the spring 11 are increased, so as to prevent the spring 11 from being distorted and damaged during the extrusion process, thereby effectively extending the service life of the spring 11.

[0031] Reference Figure 2 On the left side at the top inside the valve body 2, a sealing gasket 17 is fixedly connected. The top of the valve plate 6 is slidably connected with the bottom of the sealing gasket 17.

[0032] As a technical optimization scheme of the present utility model, by setting the sealing gasket 17, the friction force generated by the contact between the top of the valve plate 6 and the bottom of the sealing gasket 17 is increased, so as to strengthen the sealing performance of the valve pipe 1 against gas leakage.

[0033] Reference Figure 2 On the right side of the valve plate 6, a protective pad 18 is fixedly connected. The right side of the protective pad 18 is movably connected with the right side inside the valve body 2.

[0034] As a technical optimization scheme of the present utility model, by setting the protective pad 18, when the spring 11 releases pressure and drives the valve plate 6 to approach the right side inside the valve body 2, the valve plate 6 drives the protective pad 18 to move, and then the right side of the protective pad 18 contacts and fits with the right side inside the valve body 2, so as to reduce the damage caused by the contact and fitting of the valve plate 6.

[0035] Working principle and usage process of the present utility model: When the contact piece 5 and the sensor 4 detect gas leakage during use, the signal lamp 7 gives an alarm, then the motor 14 is started, and then the motor 14 drives the driving rod 15 to rotate. After that, the driving rod 15 drives the semi-gear 121 to rotate, and the semi-gear 121 drives the toothed plate 122 to move through meshing connection. Then, during the rotation process, the semi-gear 121 disengages from the toothed plate 122, and at the same time, the spring 11 has disengaged from the extrusion control, so that the spring 11 releases pressure to drive the valve plate 6 to approach and contact and fit against the right side inside the valve body 2, thereby intercepting the leaked gas. At the same time, when the spring 11 releases pressure to drive the valve plate 6 to move, the valve plate 6 drives the slider 131 to move inside the chute 132 of the valve body 2, so that the slider 131 and the chute 132 cooperate to limit the movement of the valve plate 6. Thus, the advantage of the valve plate 6 quickly intercepting is achieved.

[0036] In summary: For this gas emergency cut-off valve for preventing leakage, in the present utility model, by setting the spring 11, when gas leaks from the valve pipe 1, the valve plate 6 is out of control, the spring 11 is out of extrusion, and then the spring 11 releases pressure to drive the valve plate 6 to approach and contact the right side inside the valve body 2, thereby intercepting the leaked gas, solving the problem of the safety hazard that since the valve pipe cuts off the gas supply when gas leaks, but the valve plate cannot quickly cut off and intercept, which may cause the gas to leak rapidly, thus triggering a dangerous explosion.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present utility model 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 principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A gas emergency cut-off valve with leak prevention, comprising a valve pipe (1), a valve body (2), a support frame (3), a sensor (4), a contact piece (5), a valve plate (6), a signal lamp (7), an information plate (8), a handle (9) and a nut (10), characterized in that: The nuts (10) are fixedly connected to both ends of the valve pipe (1), the valve body (2) is fixedly connected to the surface of the valve pipe (1), the handle (9) is fixedly connected to the right side of the surface of the valve pipe (1), the information plate (8) is fixedly connected to the bottom of the left side of the surface of the valve pipe (1), the support frame (3) is fixedly connected to the left side of the valve plate (6), the signal lamp (7) is electrically connected to the front of the valve body (2), the sensor (4) is electrically connected to the right side of the valve body (2), the contact piece (5) is electrically connected to the right side inside the valve body (2), a spring (11) is fixedly connected to the left side of the valve plate (6), and the left end of the spring (11) is fixedly connected to the left side inside the support frame (3). A gear assembly (12) is arranged on the front side inside the support frame (3), and a limiting assembly (13) is arranged at the bottom of the valve plate (6).

2. The gas emergency cut-off valve with anti-leakage according to claim 1, characterized in that: The gear assembly (12) includes a half gear (121) and a toothed plate (122). The toothed plate (122) is fixedly connected to the left side of the front of the valve plate (6). The half gear (121) is arranged on the front side inside the support frame (3), and the half gear (121) is meshed with the toothed plate (122).

3. The gas emergency cut-off valve with leakage prevention according to claim 1, characterized in that: The limiting assembly (13) includes a slider (131) and a chute (132). The chutes (132) are respectively arranged on both sides of the bottom inside the valve body (2). The sliders (131) are fixedly connected to both sides of the bottom of the valve plate (6), and the sliders (131) are slidably connected to the chutes (132).

4. The gas emergency cut-off valve with leakage prevention according to claim 2, characterized in that: A motor (14) is fixedly connected to the front of the support frame (3). The output end of the motor (14) is fixedly connected to a driving rod (15), and the rear end of the driving rod (15) is fixedly connected to the front of the half gear (121).

5. The gas emergency cut-off valve with anti-leakage according to claim 1, characterized in that: A telescopic rod (16) is fixedly connected to the left side inside the support frame (3), and the right end of the telescopic rod (16) is fixedly connected to the left side of the valve plate (6).

6. A gas emergency cut-off valve with anti-leakage according to claim 1, characterized in that: A sealing gasket (17) is fixedly connected to the left side of the top inside the valve body (2), and the top of the valve plate (6) is slidably connected to the bottom of the sealing gasket (17).

7. The gas emergency cut-off valve with anti-leakage according to claim 1, characterized in that: A protective pad (18) is fixedly connected to the right side of the valve plate (6), and the right side of the protective pad (18) is movably connected to the right side inside the valve body (2).

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