Intelligent gas safety valve

Abstract

The utility model discloses an intelligent gas safety valve which comprises a valve body, an adjusting assembly and a safety assembly. And a valve head is mounted at the upper end of the valve body. According to the intelligent gas safety valve, when the pressure of gas entering an inner cavity of the valve body is large, a zigzag part of a flexible diaphragm is bent, so that an inner circle part moves upwards to drive a universal ball to move upwards, the universal ball moves upwards to enable a mounting rod to rotate around a rotating shaft, the universal ball and a rolling groove rotate relatively, and the left end of the mounting rod moves downwards; when the pressure of the fuel gas entering the inner cavity of the valve body is reduced, the inner circle part returns to the original position, the left end of the mounting rod and the sealing head move upwards, and therefore the throttling hole is opened, and the circulation is repeated so that the stability of the pressure of a fuel gas outlet can be effectively guaranteed; the safety of the gas safety valve can be improved through the intelligence of the safety assembly, and dangerous accidents such as gas leakage and explosion are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas safety valves, in particular to an intelligent gas safety valve. Background Art

[0002] Gas safety valves play a role in safety protection in gas systems. There are two types of gas safety valves: spring type and rod type. Spring type safety valves mainly rely on the force of the spring to work. There are closed and open spring type safety valves. Generally, closed type should be used for flammable, explosive or toxic media, and open type can be used for steam or inert gas.

[0003] The gas pipelines entering the house all use gas safety valves to adjust the gas pressure of the transmission pipeline to a certain pressure range before delivering it to the user. Sometimes the gas pressure delivered by the gas company will fluctuate, which may cause the pressure to be too low or too high in a short period of time. When the user's pipeline is under-pressure or over-pressured, it is easy to cause gas safety accidents. For this reason, we propose an intelligent gas safety valve. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an intelligent gas safety valve, which can adjust the outlet pressure of the gas through the adjustment component. When the gas enters the inner cavity of the valve body through the air inlet and the throttle hole, it is discharged through the groove and the air outlet. In this process, when the gas pressure entering the inner cavity of the valve body is large, the flexure of the flexible diaphragm will bend, so that the height of the inner circle reaches the height of the outer circle. At this time, the inner circle is parallel to the outer circle. At the same time, the upward movement of the inner circle will drive the mounting ring and the second compression spring to move upward, so that the first annular plate, the second annular plate and the universal ball move upward. The upward movement of the ball causes the mounting rod to rotate around the rotating shaft, and the universal ball and the rolling groove rotate relative to each other, and the left end of the mounting rod moves downward, thereby utilizing the sealing head to close the throttling hole, effectively reducing the gas pressure in the inner cavity of the valve body. When the pressure of the gas entering the inner cavity of the valve body decreases, the inner circle returns to its original position, causing the left end of the mounting rod and the sealing head to move upward, thereby opening the throttling hole, and thus the cycle is repeated to effectively ensure the stability of the gas outlet pressure. The intelligence of the safety component can improve the safety of the gas safety valve, avoid dangerous accidents such as gas leakage and explosion, and effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intelligent gas safety valve, comprising a valve body, a regulating component and a safety component;

[0006] A valve head is installed at the upper end of the valve body, and a valve cover is snap-connected to the upper end of the valve head. A convex block is installed on the left side of the inner bottom surface of the valve body, and a groove is provided on the right side of the inner bottom surface. An air inlet is provided on the left outer surface of the valve body, and an air outlet is provided on the right outer surface of the valve body. The air outlet is connected with the groove, and a throttling hole is provided inside the convex block. The left end of the throttling hole is connected with the air inlet. A rotating shaft is rotatably installed inside the valve body, and a mounting rod is installed on the rotating shaft. A sealing head is installed on the lower surface of the left end of the mounting rod, and the sealing head is located above the upper end opening of the throttling hole. The upper surface of the right part of the mounting rod is There is a rolling groove, a universal ball is connected in the rolling groove, a flexible diaphragm is installed inside the valve body, a through hole is opened in the middle of the flexible diaphragm, a mounting column is installed on the universal ball, the mounting column is penetrated by the through hole, a first annular plate is installed on the upper end of the mounting column, a second annular plate is installed on the lower part of the mounting column, the flexible diaphragm is located between the first annular plate and the second annular plate, a second clamping spring is installed on the lower surface of the first annular plate, a mounting ring is installed on the upper surface of the flexible diaphragm, the lower end of the second clamping spring is connected to the mounting ring, an adjusting component is installed in the valve head, and the adjusting component is connected to the mounting ring.

[0007] Furthermore, the regulating assembly includes a support plate installed in the valve head, a threaded rod is threadedly installed on the support plate, a handle is installed on the upper end of the threaded rod, a sleeve is rotatably installed on the lower end of the threaded rod, a first compression spring is installed on the inner top surface of the sleeve, and the lower end of the first compression spring is connected to the mounting ring. The handle is rotated to drive the threaded rod to move up and down under the action of the support plate, and the up and down movement of the threaded rod drives the sleeve to move up and down, so that the movement of the sleeve can adjust the stretching and compression of the first compression spring, thereby adjusting the expansion and contraction of the flexible diaphragm, and further effectively adjusting the outlet pressure of the gas.

[0008] Furthermore, the safety component includes an exhaust hole opened on the upper side of the valve body, a filter is installed inside the exhaust hole, a gas sensor is installed on the side of the exhaust hole, the filter is located above the gas sensor, an alarm is installed on the upper side of the valve body, and the input end of the gas sensor is electrically connected to the output end of the alarm. When the gas pressure in the inner cavity of the valve body is too high, the inner circle of the flexible diaphragm will continue to rise to a height greater than the outer circle, and the rise of the inner circle will resist the contraction of the second compression spring, but the first annular plate and the second annular plate cannot move up, so that a gap is generated between the second annular plate and the inner circle, so that the gas in the inner cavity of the valve body can be discharged to the atmosphere through the exhaust hole, thereby effectively improving the stability and safety of the gas safety valve. At the same time, after the gas sensor detects a certain concentration of gas, it sends a signal to the alarm, and the alarm emits a buzzer to alert the staff, thereby improving the intelligence of the gas safety valve and playing a protective role through the filter.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the intelligent gas safety valve can firstly adjust the outlet pressure of the gas through the adjusting component. After the gas enters the inner cavity of the valve body through the gas inlet and the throttle hole, it is discharged through the groove and the gas outlet. In this process, when the gas pressure entering the inner cavity of the valve body is large, the flexure of the flexible diaphragm will bend, so that the height of the inner circle reaches the height of the outer circle. At this time, the inner circle is parallel to the outer circle. At the same time, the upward movement of the inner circle will drive the mounting ring and the second compression spring to move upward, so that the first annular plate, the second annular plate and The universal ball moves upward, which causes the mounting rod to rotate around the rotating shaft, and the universal ball and the rolling groove to rotate relative to each other, and the left end of the mounting rod moves downward, thereby using the sealing head to close the throttling hole, effectively reducing the gas pressure in the valve body cavity. When the gas pressure entering the valve body cavity decreases, the inner circle returns to its original position, causing the left end of the mounting rod and the sealing head to move upward, thereby opening the throttling hole, and thus the cycle is repeated to effectively ensure the stability of the gas outlet pressure. The intelligence of the safety component can improve the safety of the gas safety valve to avoid dangerous accidents such as gas leakage and explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0012] In the figure: 1 valve body, 2 exhaust hole, 3 air inlet, 4 valve cover, 5 valve head, 6 alarm, 7 threaded rod, 8 filter, 9 air outlet, 10 gas sensor, 11 mounting rod, 12 sealing head, 13 throttle hole, 14 rotating shaft, 15 flexible diaphragm, 16 mounting ring, 17 groove, 18 handle, 19 support plate, 20 first compression spring, 21 sleeve, 22 first annular plate, 23 second compression spring, 24 mounting column, 25 second annular plate, 26 universal ball. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] See also Figure 1-2 ,This embodiment provides a technical solution: an intelligent gas safety valve, including a valve body 1, a regulating component and a safety component;

[0015] A valve head 5 is installed at the upper end of the valve body 1, and a valve cover 4 is connected to the upper end of the valve head 5 by snapping. A convex block is installed on the left side of the inner bottom surface of the valve body 1, and a groove 17 is opened on the right side of the inner bottom surface. An air inlet 3 is opened on the left outer surface of the valve body 1, and an air outlet 9 is opened on the right outer surface of the valve body 1. The air outlet 9 is connected to the groove 17. A throttle hole 13 is opened inside the convex block, and the left end of the throttle hole 13 is connected to the air inlet 3. A rotating shaft 14 is rotatably installed inside the valve body 1, and a mounting rod 11 is installed on the rotating shaft 14. A sealing head 12 is installed on the lower surface of the left end of the mounting rod 11, and the sealing head 12 is located above the upper end opening of the throttle hole 13. A rolling groove is opened on the upper surface of the right part of the mounting rod 11, and a universal ball 26 is connected in the rolling groove. The interior of the valve body 1 A flexible diaphragm 15 is installed, a through hole is opened in the middle of the flexible diaphragm 15, a mounting column 24 is installed on the universal ball 26, the mounting column 24 is penetrated in the through hole, a first annular plate 22 is installed on the upper end of the mounting column 24, a second annular plate 25 is installed on the lower part of the mounting column 24, the flexible diaphragm 15 is located between the first annular plate 22 and the second annular plate 25, a second compression spring 23 is installed on the lower surface of the first annular plate 22, a mounting ring 16 is installed on the upper surface of the flexible diaphragm 15, the lower end of the second compression spring 23 is connected to the mounting ring 16, an adjusting component is installed in the valve head 5, the adjusting component is connected to the mounting ring 16, the flexible diaphragm 15 includes an inner circular portion, a tortuous portion and an outer circular portion from the inside to the outside, and the height of the outer circular portion is greater than the height of the inner circular portion.

[0016] First, the outlet pressure of the gas can be adjusted by adjusting the assembly. When the gas enters the inner cavity of the valve body 1 through the gas inlet 3 and the throttle hole 13, it is discharged through the groove 17 and the gas outlet 9. In this process, when the gas pressure entering the inner cavity of the valve body 1 is large, the flexure of the flexible diaphragm 15 will bend, so that the height of the inner circle reaches the height of the outer circle. At this time, the inner circle is parallel to the outer circle. At the same time, the upward movement of the inner circle will drive the mounting ring 16 and the second compression spring 23 to move upward, so that the first annular plate 22, the second annular plate 25 and the universal ball 26 move upward. The upward movement of the universal ball 26 makes the mounting ring 16 and the second compression spring 23 move upward. The mounting rod 11 rotates around the rotating shaft 14, and the universal ball 26 and the rolling groove rotate relatively, and the left end of the mounting rod 11 moves downward, so that the throttle hole 13 is closed by the sealing head 12, and the gas pressure in the inner cavity of the valve body 1 is effectively reduced. When the gas pressure entering the inner cavity of the valve body 1 decreases, the inner circle returns to the original position, so that the left end of the mounting rod 11 and the sealing head 12 move upward, thereby opening the throttle hole 13, and the cycle is repeated to effectively ensure the stability of the gas outlet pressure. The intelligence of the safety component can improve the safety of the gas safety valve and avoid dangerous accidents such as gas leakage and explosion.

[0017] The regulating assembly includes a support plate 19 installed in the valve head 5, a threaded rod 7 is threadedly installed on the support plate 19, a handle 18 is installed on the upper end of the threaded rod 7, a sleeve 21 is rotatably installed on the lower end of the threaded rod 7, a first compression spring 20 is installed on the inner top surface of the sleeve 21, and the lower end of the first compression spring 20 is connected to the mounting ring 16. By rotating the handle 18, the threaded rod 7 is driven to move up and down under the action of the support plate 19, and the up and down movement of the threaded rod 7 drives the sleeve 21 to move up and down, so that the movement of the sleeve 21 can adjust the extension and compression of the first compression spring 20, thereby adjusting the expansion and contraction of the flexible diaphragm 15, and then effectively adjusting the outlet pressure of the gas.

[0018] The safety component includes an exhaust hole 2 opened on the upper side of the valve body 1, a filter 8 is installed inside the exhaust hole 2, a gas sensor 10 is installed on the side of the exhaust hole 2, the filter 8 is located above the gas sensor 10, an alarm 6 is installed on the upper side of the valve body 1, and the input end of the gas sensor 10 is electrically connected to the output end of the alarm 6. When the gas pressure in the inner cavity of the valve body 1 is too high, the inner circle of the flexible diaphragm 15 will continue to rise to a height greater than the outer circle, and the rise of the inner circle will resist the contraction of the second compression spring 23, but the first annular plate 22 and the second annular plate 25 cannot move upward, so that a gap is generated between the second annular plate 25 and the inner circle, so that the gas in the inner cavity of the valve body 1 can be discharged to the atmosphere through the exhaust hole 2, thereby effectively improving the stability and safety of the gas safety valve. At the same time, after the gas sensor 10 detects a certain concentration of gas, it sends a signal to the alarm 6, and the alarm 6 emits a buzzer to warn the staff, thereby improving the intelligence of the gas safety valve and playing a protective role through the filter 8.

[0019] The working principle of an intelligent gas safety valve provided by the utility model is as follows: first, the outlet pressure of the gas can be adjusted by adjusting the assembly. After the gas enters the inner cavity of the valve body 1 through the gas inlet 3 and the throttle hole 13, it is discharged through the groove 17 and the gas outlet 9. In this process, when the gas pressure entering the inner cavity of the valve body 1 is large, the flexure of the flexible diaphragm 15 will bend, so that the height of the inner circle reaches the height of the outer circle. At this time, the inner circle is parallel to the outer circle. At the same time, the upward movement of the inner circle will drive the mounting ring 16 and the second compression spring 23 to move upward, so that the first annular plate 22, the second annular plate 25 and the universal ball 26 The universal ball 26 moves upward, so that the mounting rod 11 rotates around the rotating shaft 14, and the universal ball 26 and the rolling groove rotate relatively, and the left end of the mounting rod 11 moves downward, so that the sealing head 12 is used to close the throttle hole 13, effectively reducing the gas pressure in the inner cavity of the valve body 1. When the gas pressure entering the inner cavity of the valve body 1 decreases, the inner circle returns to the original position, so that the left end of the mounting rod 11 and the sealing head 12 move upward, thereby opening the throttle hole 13, so that the cycle is repeated to effectively ensure the stability of the gas outlet pressure. The intelligence of the safety component can improve the safety of the gas safety valve and avoid dangerous accidents such as gas leakage and explosion. By turning the handle 18, the threaded rod 7 is driven to move up and down under the action of the support plate 19, and the threaded rod 7 moves up and down to drive the sleeve 21 to move up and down, so that the movement of the sleeve 21 can adjust the extension and compression of the first compression spring 20, thereby adjusting the expansion and contraction of the flexible diaphragm 15, and then effectively adjusting the outlet pressure of the gas. When the gas pressure in the inner cavity of the valve body 1 is too high, the inner circle of the flexible diaphragm 15 will continue to rise to a height greater than the outer circle. The rise of the inner circle resists the contraction of the second compression spring 23, but the first annular plate 22 and the second annular plate 25 cannot move upward, so that a gap is generated between the second annular plate 25 and the inner circle, so that the gas in the inner cavity of the valve body 1 can be discharged into the atmosphere through the exhaust hole 2, thereby effectively improving the stability and safety of the gas safety valve. At the same time, the gas sensor 10 sends a signal to the alarm 6 after detecting a certain concentration of gas, and the alarm 6 emits a buzzer to alert the staff, thereby improving the intelligence of the gas safety valve and playing a protective role through the filter 8.

[0020] It is worth noting that, in this embodiment, the gas sensor 10 and the alarm 6 can be freely configured according to the actual application scenario.

[0021] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An intelligent gas safety valve, characterized in that: It comprises a valve body (1), a regulating component and a safety component; A valve head (5) is mounted on the upper end of the valve body (1), and a valve cover (4) is snap-connected to the upper end of the valve head (5). A convex block is mounted on the left side of the inner bottom surface of the valve body (1), and a groove (17) is provided on the right side of the inner bottom surface. An air inlet (3) is provided on the left side outer surface of the valve body (1), and an air outlet (9) is provided on the right side outer surface of the valve body (1). The air outlet (9) is connected to the groove (17). A throttle hole (13) is provided inside the convex block, and the left end of the throttle hole (13) is connected to the air inlet (3). A rotating shaft (14) is rotatably mounted inside the valve body (1), and a mounting rod (11) is mounted on the rotating shaft (14). A sealing head (12) is mounted on the lower surface of the left end of the mounting rod (11), and the sealing head (12) is located above the upper end opening of the throttle hole (13). The upper surface of the right part of the mounting rod (11) is provided with a A rolling groove, a universal ball (26) is connected in the rolling groove, a flexible diaphragm (15) is installed inside the valve body (1), a through hole is opened in the middle of the flexible diaphragm (15), a mounting column (24) is installed on the universal ball (26), the mounting column (24) is penetrated in the through hole, a first annular plate (22) is installed at the upper end of the mounting column (24), a second annular plate (25) is installed at the lower part of the mounting column (24), the flexible diaphragm (15) is located between the first annular plate (22) and the second annular plate (25), a second compression spring (23) is installed on the lower surface of the first annular plate (22), a mounting ring (16) is installed on the upper surface of the flexible diaphragm (15), the lower end of the second compression spring (23) is connected to the mounting ring (16), an adjustment component is installed in the valve head (5), and the adjustment component is connected to the mounting ring (16).

2. The intelligent gas safety valve according to claim 1, characterized in that: The regulating assembly comprises a support plate (19) installed in the valve head (5), a threaded rod (7) being threadedly installed on the support plate (19), a handle (18) being installed on the upper end of the threaded rod (7), a sleeve (21) being rotatably installed on the lower end of the threaded rod (7), a first compression spring (20) being installed on the inner top surface of the sleeve (21), and the lower end of the first compression spring (20) being connected to the mounting ring (16).

3. The intelligent gas safety valve according to claim 1, characterized in that: The safety component comprises an exhaust hole (2) formed on the upper side of the valve body (1), a filter screen (8) being installed inside the exhaust hole (2), a gas sensor (10) being installed on the side of the exhaust hole (2), the filter screen (8) being located above the gas sensor (10), an alarm (6) being installed on the upper side of the valve body (1), and an input end of the gas sensor (10) being electrically connected to an output end of the alarm (6).

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