Monitoring device for gas self-closing valve

Abstract

The invention relates to the technical field of gas self-closing valve appliance equipment, in particular to a monitoring device for a gas self-closing valve, which comprises a shield main body, an adapter plate, a circuit board and a main body pressing plate are arranged in the shield main body, an MCU and two microswitches are arranged on the circuit board, a push rod is arranged on the inner side of the shield main body, and a wind blocking cylinder is arranged at the lower end of the main body pressing plate. The push rod is arranged on the inner side of the air blocking cylinder, an electric motor is arranged on the circuit board and provided with a bevel gear, a first annular groove and a second annular groove are formed in the circuit board and the main body pressing plate respectively, an annular rotating plate is rotationally arranged in the first annular groove, and the upper end of the annular rotating plate is connected with the bevel gear in a meshed mode. An annular opening seam communicated with the annular limiting groove is formed in the top of the air blocking barrel, the lower end of the annular rotating plate rotationally penetrates through the second annular groove and the annular opening seam and is connected with the arc-shaped plate, the air blocking barrel is provided with an arc-shaped notch, a gas sensor is arranged on the side wall of the air blocking barrel, and the accuracy of movement information of the push rod is improved conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of gas self - closing valve equipment, and particularly relates to a monitoring device for a gas self - closing valve. Background Art

[0002] As a key device to ensure the safety of gas use, the installation rate of gas self - closing valves has increased significantly in recent years under the promotion of domestic and foreign policies and regulations. The market demand remains strong. With the enhancement of residents' awareness of gas safety and the implementation of mandatory installation regulations in new residential buildings and other places, gas self - closing valves have been upgraded from optional to standard equipment.

[0003] In the existing design, the state of the gas self - closing valve is usually detected. That is, the gas self - closing valve is contacted through a push rod, and the opening and closing state of the gas self - closing valve is monitored by sensing the movement state of the valve stem of the gas self - closing valve. However, the gas self - closing valve installed outdoors is easily affected by strong winds, which causes the push rod to shake, resulting in a deviation in the push rod's perception of the movement state of the valve stem of the gas self - closing valve. At the same time, there is a lack of a necessary active shutdown device in case of a small amount of gas leakage. Summary of the Invention

[0004] The purpose of the present invention is to provide a monitoring device for a gas self - closing valve to solve the problems.

[0005] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a monitoring device for a gas self-closing valve, including a shield body, wherein a transfer plate, a circuit board and a main body pressure plate are sequentially arranged from top to bottom in the shield body, an MCU and two micro switches are arranged on the circuit board, a push rod is arranged on the inner side of the shield body, the top of the push rod slides through the main body pressure plate and the circuit board, paddles are arranged on both sides of the push rod, and two sliding grooves for the paddles to slide through are arranged on the circuit board, the two micro switches are arranged on both sides of the push rod at upper and lower intervals, a windshield is arranged at the lower end of the main body pressure plate, the push rod is arranged on the inner side of the windshield, an electric motor is arranged on the circuit board, a bevel gear is arranged on the output end of the electric motor, and a first annular transparent arrangement is respectively provided on the circuit board and the main body pressure plate. A groove and a second annular groove, an annular rotating plate is rotatably provided in the first annular groove, the upper end of the annular rotating plate is meshed with the bevel gear, an annular limiting groove is provided on the inner side of the wind shield, and an annular opening slot connected to the annular limiting groove is provided on the top of the wind shield, the lower end of the annular rotating plate rotates through the second annular groove and the annular opening slot and is connected to two symmetrically arranged arc plates rotatably arranged in the annular limiting groove, an annular clamping groove is provided on the inner wall of the second annular groove, and an annular clamping plate rotatably arranged in the annular clamping groove is provided on the side wall of the annular rotating plate, two symmetrically arranged arc notches are provided on the top of the wind shield, the arc length of the arc notch is greater than the arc length of the arc plate, and at least one gas sensor is provided on the side wall of the wind shield, and the gas sensor and the electric motor are electrically connected to the MCU.

[0006] A further technical solution is that an upper cover plate is provided on the top thread of the shield body, a speaker connected to the circuit board is provided between the main pressure plate and the shield body, a battery connected to the circuit board is provided on the adapter board, and a button connected to the circuit board is provided on one side of the shield body, and the button has a built-in warning light connected to the circuit board.

[0007] A further technical solution is that a groove is provided on the top of the push rod, a vertically arranged spring is fixedly connected to the bottom of the groove, a clamping column is provided at the lower end of the adapter plate, and the upper end of the spring is connected to the clamping column.

[0008] A further technical solution is that a communication module is provided on the circuit board, the communication module is communicatively connected to the mobile terminal, and the communication module is a 4G module or a 5G module.

[0009] A further technical solution is that four clamping plates are provided at the lower end of the shield body, and a plurality of observation holes are provided on the side of the shield body.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. When an abnormality occurs in the gas self-closing valve, the push rod is driven to move synchronously. During the movement, the push rod contacts two micro switches set at upper and lower intervals through the paddle on the push rod. The movement information of the push rod is transmitted to the MCU by triggering the micro switch. The abnormal state of the gas self-closing valve is judged by the MCU, and the abnormal state and the processing method of the abnormal state are played through the speaker. At the same time, the warning light flashes to warn the personnel, so that the personnel can find the abnormality of the gas self-closing valve in time and can quickly deal with the abnormal situation according to the processing method played by the speaker.

[0011] 2. When there is strong wind, the wind shield is set to prevent the push rod from shaking due to strong wind. During the movement of the push rod, the paddle on the push rod contacts two micro switches set at intervals above and below. The movement information of the push rod is transmitted to the MCU by triggering the micro switch. The abnormal state of the gas self-closing valve is judged by the MCU, thereby improving the accuracy of the movement information of the push rod.

[0012] 3. When the gas sensor detects that the gas leakage exceeds the standard, the detection information is transmitted to the MCU. The MCU controls the electric motor to rotate. The electric motor drives the bevel gear to rotate during the rotation. The bevel gear drives the annular rotating plate meshing with the bevel gear to rotate during the rotation. The annular rotating plate drives the two arc plates to rotate during the rotation. When the arc plate rotates to the arc notch and the arc plate completely overlaps with the arc notch, the wind shield naturally falls and conflicts with the valve stem of the gas self-closing valve, and pushes the gas self-closing valve to be in a closed state, thereby avoiding continuous gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a schematic structural diagram of a monitoring device for a gas self-closing valve.

[0014] Figure 2 It is a longitudinal sectional view of the monitoring device of the gas self-closing valve in the present invention.

[0015] Figure 3 Another longitudinal sectional view of the monitoring device for the gas self-closing valve of the present invention.

[0016] Figure 4 It is a schematic diagram of the connection between the windshield cylinder and the annular rotating plate in the present invention.

[0017] Reference numerals: 1 - shield body, 2 - adapter plate, 3 - circuit board, 4 - main body pressure plate, 5 - upper cover plate, 6 - micro switch, 7 - push rod, 8 - paddle, 9 - speaker, 10 - battery, 11 - button, 12 - groove, 13 - spring, 14 - clamping post, 15 - sound transmission hole, 16 - clamping plate, 17 - observation hole, 18 - wind shield tube, 19 - electric motor, 20 - helical gear, 21 - annular rotating plate, 22 - annular limiting groove, 23 - annular opening slit, 24 - arc plate, 25 - annular clamping groove, 26 - annular clamping plate, 27 - arc notch. Detailed implementation manners

[0018] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] Embodiment 1: Figures 1-4Shows a preferred embodiment of a monitoring device for a gas self - closing valve according to the present invention. A monitoring device for a gas self - closing valve in this embodiment specifically includes a shield body 1. Inside the shield body 1, a transfer board 2, a circuit board 3, and a main body pressing plate 4 are sequentially arranged at intervals from top to bottom. The top of the shield body 1 is threadedly provided with an upper cover plate 5. On the circuit board 3, an MCU and two micro - switches 6 are provided. Inside the shield body 1, a push rod 7 is provided. The top of the push rod 7 slidably passes through the main body pressing plate 4 and the circuit board 3. On both sides of the push rod 7, there are sliders 8. On the circuit board 3, there are two chutes for the sliders 8 to slide through. The two micro - switches 6 are arranged at intervals up and down on both sides of the push rod 7. At the lower end of the main body pressing plate 4, there is a wind - shielding cylinder 18. The push rod 7 is arranged inside the wind - shielding cylinder 18. On the circuit board 3, there is an electric motor 19. The output end of the electric motor 19 is provided with a helical gear 20. The circuit board 3 and the main body pressing plate 4 are respectively provided with a first annular groove and a second annular groove that are transparently arranged. Inside the first annular groove, a ring - shaped rotating plate 21 is rotatably arranged. The upper end of the ring - shaped rotating plate 21 is meshed and connected with the helical gear 20. Inside the wind - shielding cylinder 18, there is an annular limiting groove 22. At the top of the wind - shielding cylinder 18, there is an annular opening slit 23 connected to the annular limiting groove 22. The lower end of the ring - shaped rotating plate 21 rotatably passes through the second annular groove and the annular opening slit 23 and is connected with two symmetrically arranged arc - shaped plates 24 rotatably arranged in the annular limiting groove 22. The inner wall of the second annular groove is provided with an annular clamping groove 25. On the side wall of the ring - shaped rotating plate 21, there is an annular clamping plate 26 rotatably arranged in the annular clamping groove 25. At the top of the wind - shielding cylinder 18, there are two symmetrically arranged arc - shaped notches 27. The arc length of the arc - shaped notch 27 is greater than the arc length of the arc - shaped plate 24. On the side wall of the wind - shielding cylinder 18, there is at least one gas - sensitive sensor. The gas - sensitive sensor and the electric motor 19 are electrically connected to the MCU.

[0020] In the present invention, between the main body pressing plate 4 and the shield body 1, there is a horn 9 connected to the circuit board 3. On the transfer board 2, there is a battery 10 connected to the circuit board 3. On one side of the shield body 1, there is a button 11 connected to the circuit board 3. The button 11 is internally provided with a warning light connected to the circuit board 3. When the gas self - closing valve has an abnormality, it drives the push rod 7 to move synchronously. During the movement of the push rod 7, the sliders 8 on the push rod 7 come into contact with the two micro - switches 6 arranged at intervals up and down. By triggering the micro - switches 6, the movement information of the push rod 7 is transmitted to the MCU. The MCU judges the abnormal state of the gas self - closing valve, and plays the abnormal state and the processing method of the abnormal state through the horn. At the same time, the warning light flashes to give a warning reminder to the personnel, facilitating the personnel to timely discover the abnormality of the gas self - closing valve and quickly process the abnormal situation according to the processing method played by the horn.

[0021] When strong wind weather occurs, the setting of the wind shield tube 18 can prevent the push rod 7 from shaking caused by strong wind. During the movement of the push rod 7, the paddle 8 on the push rod 7 contacts two micro switches 6 arranged at an upper and lower interval. By triggering the micro switches 6, the movement information of the push rod 7 is transmitted to the MCU, and the MCU judges the abnormal state of the gas self - closing valve, thereby improving the accuracy of the movement information of the push rod 7.

[0022] When the gas sensor detects that the gas leakage exceeds the standard, it transmits the detected information to the MCU. The MCU controls the electric motor 19 to rotate. During the rotation of the electric motor 19, the helical gear 20 is driven to rotate. During the rotation of the helical gear 20, the annular rotating plate 21 engaged with the helical gear 20 is driven to rotate. During the rotation of the annular rotating plate 21, two arc plates 24 are driven to rotate. When the arc plate 24 rotates to the arc notch 27 and the arc plate 24 completely coincides with the arc notch 27, the wind shield tube 18 naturally drops and abuts against the valve stem of the gas self - closing valve, and the gas self - closing valve is pushed to be in the closed state to avoid continuous gas leakage.

[0023] Specifically, during the implementation process, the wind shield tube 18 may rotate together with the annular rotating plate 21. To avoid this problem, a limiting post can be provided at the lower end of the main body pressing plate 4, and a limiting card hole can be provided at the top of the wind shield tube 18. The lower end of the limiting post is arranged in the limiting card hole to prevent the wind shield tube 18 from rotating together with the annular rotating plate 21. At the same time, considering the installation position of the entire device, to facilitate the wind shield tube 18 to timely disengage and abut against the valve stem of the gas self - closing valve to close the valve stem of the gas self - closing valve, a compression spring can also be sleeved on the limiting post. One end of the compression spring is fixedly connected to the main body pressing plate 4, and the other end abuts against the wind shield tube 18. When the arc plate 24 rotates to the arc notch 27 and the arc plate 24 completely coincides with the arc notch 27, the wind shield tube 18 is driven by the thrust of the compression spring to timely disengage and abut against the valve stem of the gas self - closing valve to close the valve stem of the gas self - closing valve.

[0024] Embodiment 2: When the gas self - closing valve is abnormal, it drives the push rod 7 to move synchronously. During the movement of the push rod 7, the paddle 8 on the push rod 7 contacts two micro switches 6 arranged at an upper and lower interval. By triggering the micro switches 6, the movement information of the push rod 7 is transmitted to the MCU. The MCU judges the abnormal state of the gas self - closing valve, and plays the abnormal state and the processing method of the abnormal state through the speaker 9. At the same time, the warning light flashes to give a warning reminder to the personnel, so that the personnel can timely discover the abnormality of the gas self - closing valve and quickly process the abnormal situation according to the processing method played by the speaker 9.

[0025] Specifically, two micro switches 6 are used to obtain the motion state of the displacement height of the push rod 7 and transmit the motion state information to the MCU. Then, the abnormal gas usage cause leading to the closing of the self-closing valve is judged based on the motion state of the push rod 7. Different motions of the push rod 7 correspond to different abnormal gas usage states. The horn 9 can broadcast the warning of the valve closing action of the self-closing valve to alert the user, and at the same time broadcast the abnormal gas usage type leading to the valve closing and the corresponding treatment method.

[0026] A groove 12 is provided at the top of the push rod 7, and a vertically arranged spring 13 is fixedly connected to the bottom of the groove 12. A clamping post 14 is provided at the lower end of the adapter plate 2, and the upper end of the spring 13 is connected to the clamping post 14. Specifically, the upper end of the spring 13 is clamped with the clamping post 14, so that the spring 13 and the clamping post 14 are not easily detached. The setting of the spring 13 is used to prevent the push rod 7 from falling off.

[0027] A cavity is formed between the main body pressing plate 4 and the shield main body 1. The horn 9 is arranged in the cavity. The shield main body 1 is provided with a plurality of sound transmission holes 15 communicating with the cavity. The setting of the sound transmission holes 15 facilitates the transmission of the sound played by the horn 9.

[0028] The adapter plate 2, the circuit board 3 and the main body pressing plate 4 are connected by bolts, and the main body pressing plate 4 and the shield main body 1 are integrally formed.

[0029] A communication module is provided on the circuit board 3. The communication module is communicatively connected to a mobile terminal. The communication module is a 4G module or a 5G module. Specifically, the mobile terminal is a mobile phone terminal. The 4G module or 5G module facilitates the timely sending of abnormal information to the mobile phone terminal, enabling the user to obtain abnormal information in the first time when the gas self-closing valve is abnormal.

[0030] Four clamping plates 16 are provided at the lower end of the shield main body 1, and a plurality of observation holes 17 are provided on the side of the shield main body 1. The clamping plates 16 are convenient for clamping on the gas pipeline, and the observation holes 17 are convenient for observing the gas self-closing valve.

[0031] Although the present invention has been described herein with reference to a number of illustrative embodiments of the present invention, it should be understood that those skilled in the art can design many other modifications and embodiments that will fall within the scope of the principles and spirit of the present disclosure. More specifically, within the scope of the present disclosure, the drawings and the claims, various modifications and improvements can be made to the components and / or the layout of the subject combination layout. In addition to the modifications and improvements to the components and / or the layout, other uses will also be apparent to those skilled in the art.

Claims

1. A monitoring device for a gas self-closing valve, characterized in that: The invention comprises a shield body, wherein an adapter plate, a circuit board and a main body pressure plate are sequentially arranged in the shield body from top to bottom, an MCU and two micro switches are arranged on the circuit board, a push rod is arranged on the inner side of the shield body, the top of the push rod slides through the main body pressure plate and the circuit board, paddles are arranged on both sides of the push rod, two slide grooves for the paddles to slide through are arranged on the circuit board, two micro switches are arranged on both sides of the push rod at upper and lower intervals, a windshield is arranged at the lower end of the main body pressure plate, the push rod is arranged on the inner side of the windshield, an electric motor is arranged on the circuit board, a bevel gear is arranged on the output end of the electric motor, a first annular groove and a second annular groove which are transparently arranged are respectively provided on the circuit board and the main body pressure plate, and a first annular groove rotates in the first annular groove An annular rotating plate is provided, the upper end of which is meshed with the bevel gear, an annular limiting groove is provided on the inner side of the windshield, an annular opening slot connected to the annular limiting groove is provided on the top of the windshield, the lower end of the annular rotating plate rotates through the second annular groove and the annular opening slot and is connected to two symmetrically arranged arc plates rotatably arranged in the annular limiting groove, an annular clamping groove is provided on the inner wall of the second annular groove, an annular clamping plate rotatably arranged in the annular clamping groove is provided on the side wall of the annular rotating plate, two symmetrically arranged arc notches are provided on the top of the windshield, the arc length of the arc notch is greater than the arc length of the arc plate, at least one gas sensor is provided on the side wall of the windshield, and the gas sensor and the electric motor are electrically connected to the MCU.

2. A monitoring device for a gas self-closing valve according to claim 1, characterized in that: The top thread of the shield body is provided with an upper cover plate, a speaker connected to the circuit board is provided between the main pressure plate and the shield body, a battery connected to the circuit board is provided on the adapter board, and a button connected to the circuit board is provided on one side of the shield body, and the button has a built-in warning light connected to the circuit board.

3. A monitoring device for a gas self-closing valve according to claim 1, characterized in that: A groove is provided at the top of the push rod, a vertically arranged spring is fixedly connected to the bottom of the groove, a clamping column is provided at the lower end of the adapter plate, and the upper end of the spring is connected to the clamping column.

4. A monitoring device for a gas self-closing valve according to claim 1, characterized in that: A communication module is provided on the circuit board, and the communication module is connected to the mobile terminal for communication. The communication module is a 4G module or a 5G module.

5. A monitoring device for a gas self-closing valve according to claim 1, characterized in that: Four clamping plates are arranged at the lower end of the shield body, and a plurality of observation holes are arranged on the side of the shield body.

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