A monitoring device for a gas self-closing valve

Abstract

The present invention relates to the technical field of gas self-closing valve appliances and equipment, and particularly relates to a monitoring device for a gas self-closing valve, including a shield body. A transfer board, a circuit board, and a main body pressing plate are arranged inside the shield body. An MCU and two microswitches are arranged on the circuit board. A push rod is arranged inside the inner side of the shield body. A wind shield cylinder is arranged at the lower end of the main body pressing plate. The push rod is arranged inside the wind shield cylinder. An electric motor is arranged on the circuit board. The electric motor is provided with a helical gear. A first annular groove and a second annular groove are respectively arranged on the circuit board and the main body pressing plate. An annular rotating plate is rotatably arranged inside the first annular groove. The upper end of the annular rotating plate is meshed and connected with the helical gear. An annular limiting groove is arranged inside the wind shield cylinder. An annular opening slit connected to the annular limiting groove is arranged at the top of the wind shield cylinder. The lower end of the annular rotating plate rotatably passes through the second annular groove and the annular opening slit and is connected with an arc-shaped plate. The wind shield cylinder is provided with an arc-shaped notch. A gas sensor is arranged on the side wall of the wind shield cylinder, which is convenient for improving the accuracy of the movement information of the push rod.

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, in recent years, driven by domestic and foreign policies and regulations, the installation rate of gas self - closing valves has increased significantly, and the market demand continues to be 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] To solve the above technical problems, the object of the present invention is to provide a monitoring device for a gas self - closing valve, including a shield body. Inside the shield body, a transfer board, a circuit board, and a main body pressing plate are sequentially arranged at intervals from top to bottom. An MCU and two micro - switches are arranged on the circuit board. A push rod is arranged inside the shield body. The top of the push rod slides through the main body pressing plate and the circuit board. On both sides of the push rod, there are paddle pieces. Two sliding grooves for the paddle pieces to slide through are arranged on the circuit board. The two micro - switches are arranged at intervals up and down on both sides of the push rod. The lower end of the main body pressing plate is provided with a wind - shielding cylinder. The push rod is arranged inside the wind - shielding cylinder. An electric motor is arranged on the circuit board. The output end of the electric motor is provided with a helical gear. The circuit board and the main body pressing plate are respectively provided with a first annular groove and a second annular groove that are transparently arranged. An annular rotating plate is rotatably arranged in the first annular groove. The upper end of the annular rotating plate is meshed and connected with the helical gear. An annular limiting groove is arranged inside the wind - shielding cylinder. The top of the wind - shielding cylinder is provided with an annular opening slit connected to the annular limiting groove. The lower end of the annular rotating plate rotates through the second annular groove and the annular opening slit and is connected with two symmetrically arranged arc - shaped plates rotatably arranged in the annular limiting groove. The inner wall of the second annular groove is provided with an annular clamping groove. The side wall of the annular rotating plate is provided with an annular clamping plate rotatably arranged in the annular clamping groove. The top of the wind - shielding cylinder is provided with two symmetrically arranged arc - shaped notches. The arc length of the arc - shaped notches is greater than the arc length of the arc - shaped plates. At least one gas - sensitive sensor is arranged on the side wall of the wind - shielding cylinder. The gas - sensitive sensor and the electric motor are electrically connected to the MCU.

[0006] Further technical solution is that a top cover plate is threadedly arranged at the top of the shield body. A horn connected to the circuit board is arranged between the main body pressing plate and the shield body. A battery connected to the circuit board is arranged on the transfer board. A key connected to the circuit board is arranged on one side of the shield body. A warning lamp connected to the circuit board is arranged inside the key.

[0007] A further technical solution is that a groove is arranged at the top of the push rod. A vertically arranged spring is fixedly connected to the bottom of the groove. A clamping post is arranged at the lower end of the transfer board. The upper end of the spring is connected to the clamping post.

[0008] A further technical solution is that a communication module is arranged on the circuit board. The communication module communicates with a mobile terminal. The communication module is a 4G module or a 5G module.

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

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 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.

[0012] 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.

[0013] 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

[0014] Figure 1 The present invention is a schematic structural diagram of a monitoring device for a gas self-closing valve.

[0015] Figure 2 It is a longitudinal sectional view of the monitoring device of the gas self-closing valve in the present invention.

[0016] Figure 3 Another longitudinal sectional view of the monitoring device for the gas self-closing valve of the present invention.

[0017] Figure 4 It is a schematic diagram of the connection between the windshield cylinder and the annular rotating plate in the present invention.

[0018] Figure markings: 1-shield body, 2-adapter plate, 3-circuit board, 4-body pressure plate, 5-upper cover, 6-micro switch, 7-push rod, 8-paddle, 9-speaker, 10-battery, 11-button, 12-groove, 13-spring, 14-clamping column, 15-sound hole, 16-clamping plate, 17-observation hole, 18-wind shield, 19-electric motor, 20-bevel gear, 21-annular rotating plate, 22-annular limiting groove, 23-annular opening seam, 24-arc plate, 25-annular clamping groove, 26-annular clamping plate, 27-arc notch. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 intended to limit the present invention.

[0020] Embodiment 1:

[0021] 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 threaded with an upper cover plate 5. On the circuit board 3, there is an MCU and two micro - switches 6. Inside the shield body 1, there is a push rod 7. The top of the push rod 7 slides through the main body pressing plate 4 and the circuit board 3. On both sides of the push rod 7, there are paddles 8. On the circuit board 3, there are two chutes for the paddles 8 to slide through. The two micro - switches 6 are arranged at intervals up and down on both sides of the push rod 7. The lower end of the main body pressing plate 4 is provided with 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, there is a rotating annular plate 21. The upper end of the annular plate 21 is meshed and connected with the helical gear 20. Inside the wind - shielding cylinder 18, there is an annular limiting groove 22. The top of the wind - shielding cylinder 18 is provided with an annular opening slit 23 connected to the annular limiting groove 22. The lower end of the annular plate 21 rotates 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. The side wall of the annular plate 21 is provided with an annular clamping plate 26 rotatably arranged in the annular clamping groove 25. The top of the wind - shielding cylinder 18 is provided with 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. At least one gas - sensitive sensor is arranged on the side wall of the wind - shielding cylinder 18. The gas - sensitive sensor and the electric motor 19 are electrically connected to the MCU.

[0022] 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 key 11 connected to the circuit board 3. The key 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 paddles 8 on the push rod 7 contact 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 handle the abnormal situation according to the processing method played by the horn.

[0023] When strong wind weather occurs, the setting of the wind shield tube 18 avoids the shaking of the push rod 7 caused by the 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.

[0024] When the gas sensor detects that the gas leakage exceeds the standard, the detected information is transmitted 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 falls and abuts against the valve rod of the gas self-closing valve, and the gas self-closing valve is pushed to be in a closed state to avoid continuous gas leakage.

[0025] 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 column 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 column 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 be able to disengage and abut against the valve rod of the gas self-closing valve in time to close the valve rod of the gas self-closing valve, a compression spring can also be sleeved on the limiting column. 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 be able to disengage and abut against the valve rod of the gas self-closing valve in time to close the valve rod of the gas self-closing valve.

[0026] Embodiment 2:

[0027] 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 lamp 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 can quickly process the abnormal situation according to the processing method played by the speaker 9.

[0028] 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 handling method.

[0029] 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.

[0030] A cavity is formed between the main body pressing plate 4 and the shield main body 1, and the horn 9 is arranged in the cavity. A plurality of sound transmission holes 15 communicating with the cavity are provided on the shield main body 1. The setting of the sound transmission holes 15 facilitates the transmission of the sound played by the horn 9.

[0031] 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.

[0032] A communication module is provided on the circuit board 3, and 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 has an abnormality.

[0033] 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.

[0034] Although the present invention has been described herein with reference to multiple 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 disclosed in this application. More specifically, within the scope of this application's disclosure, the drawings, and the claims, various modifications and improvements can be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or 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. The 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. The 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. The monitoring device for a gas self - closing valve according to claim 1, wherein: 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. The 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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