Monitoring device for gas self-closing valve

Abstract

The utility model 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 and an alarm, a circuit board and a main body pressing plate are arranged in the shield main body, an MCU (Microprogrammed Control Unit) and two microswitches are arranged on the circuit board, a push rod is connected onto the main body pressing plate in a sliding manner, and the push rod is connected with the alarm. The top of the push rod penetrates through the circuit board in a sliding mode, shifting pieces are arranged on the two sides of the push rod, sliding grooves for the shifting pieces to pass through in a sliding mode are formed in the circuit board, the two microswitches are arranged on the two sides of the push rod in an up-down spaced mode, positioning holes are evenly formed in the top of the shield body, magnetic blocks are arranged at the bottoms of the positioning holes, and silica gel rings are arranged at the openings of the positioning holes in a surrounding mode. The alarm is electrically connected with the MCU, a mounting column corresponding to the positioning hole is arranged at the bottom of the alarm in a protruding mode, a magnet attracted with the magnetic block is arranged at the end of the mounting column, an annular groove is formed in the outer side of the positioning column in a surrounding mode, and through the structure, the defect that the mounting position of a traditional integrated design is limited is overcome.

Description

Technical Field

[0001] This utility model relates to the technical field of gas self-closing valve appliances and equipment, specifically to a monitoring device for gas self-closing valves. Background Technology

[0002] As a key device for ensuring gas safety, the gas self-closing valve has been upgraded from an optional feature to a mandatory standard feature in new residential buildings and urban renewal projects, driven by domestic and international policies and regulations and the increasing safety awareness of residents. Market demand remains strong. In existing technologies, intelligent monitoring devices are usually installed on the valve body. By using the push rod to contact and sense the displacement state of the valve stem (i.e., the manual reset lever), the valve's opening and closing status can be accurately determined, thereby achieving real-time monitoring of its working status.

[0003] Chinese invention patent document CN120062424A discloses a monitoring device for a gas self-closing valve. The device includes a protective cover body. Inside the protective cover body, from top to bottom, are arranged a converter plate, a circuit board, and a main pressure plate. The circuit board has an MCU and two microswitches. A push rod is located inside the protective cover body, with its top sliding through the main pressure plate and the circuit board. Two levers are located on both sides of the push rod. The circuit board has two grooves for the levers to slide through. The two microswitches are arranged vertically on both sides of the push rod. A horn connected to the circuit board is located between the main pressure plate and the protective cover body. A battery connected to the circuit board is located on the converter plate. A button connected to the circuit board is located on one side of the protective cover body. The button has a built-in warning light connected to the circuit board. This design triggers the microswitches via the levers on the push rod, and the MCU controls the horn to announce abnormal conditions and handling methods, while the warning light flashes as a reminder.

[0004] However, the above-mentioned device has the following limitations in practical applications due to its structure: its warning light and horn are both integrated inside the main body of the protective cover, which means that the audible and visual alarm module of the device must be fixedly installed at the installation location of the gas self-closing valve along with the main body of the monitoring device. When the gas self-closing valve is installed in a corner, inside a cabinet, or other areas that are not easily observed by people during daily activities, the audible and visual warning information it emits is easily obstructed or attenuated, thus affecting the warning effect and making it difficult for users to receive alarm information in a timely manner. Utility Model Content

[0005] The purpose of this invention is to provide a monitoring device for a gas self-closing valve to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A monitoring device for a gas self-closing valve includes a protective cover and an alarm. Inside the protective cover, a circuit board and a main pressure plate are arranged sequentially from top to bottom. The circuit board has an MCU and two microswitches. A push rod is vertically slidably connected to the main pressure plate, with its top sliding through the circuit board. The push rod has paddles on both sides, and the circuit board has through holes for the paddles to slide through. The two microswitches are arranged vertically on both sides of the push rod. Positioning holes are evenly distributed on the top of the protective cover, with a magnetic block at the bottom of each hole and a silicone ring surrounding the opening. The alarm is electrically connected to the MCU. A mounting post corresponding to the positioning hole protrudes from the bottom of the alarm, with a magnet at the end of the mounting post attracting the magnetic block. An annular groove is formed around the outer side of the mounting post.

[0008] A further technical solution is that a cable plug electrically connected to the MCU is fixedly installed on the top of the protective cover body, and the alarm is connected to a flexible cable, with a cable socket adapted to the cable plug installed at the end of the flexible cable.

[0009] A further technical solution is that the lower end of the protective cover body is provided with four snap-fit ​​plates, and observation holes are opened on the side wall of the protective cover body.

[0010] A further technical solution is to have a battery connected to the circuit board inside the main body of the protective cover.

[0011] A further technical solution is that the top of the push rod is provided with a groove, the bottom of the groove is fixedly connected to a vertically arranged spring, the top inner wall of the protective cover body is provided with a locking post, and the upper end of the spring is connected to the locking post.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In use, when the gas self-closing valve is installed in a corner, inside a cabinet, or other area not easily observed by people during daily activities, pulling the alarm causes the mounting post at the bottom of the alarm to slide out of the positioning hole. This separates the magnet and the magnetic block, and simultaneously, the outer wall of the mounting post presses against the silicone ring, causing the silicone ring to deform and no longer restricting the mounting post. This allows the mounting post to slide smoothly out of the positioning hole, thus detaching the alarm from the main body of the cover. Then, a specially designed adhesive iron plate is attached to a suitable location according to the actual situation. Because the mounting post end of the alarm has a magnet, the magnet attracts the iron plate, allowing the alarm to be installed in the appropriate position. This prevents the alarm's warning signal from being easily blocked or attenuated, thus affecting the warning effect. This structure allows the alarm to be installed in a suitable location according to actual needs, regardless of the gas self-closing valve's installation position, overcoming the limitations of traditional integrated designs that restrict installation location. Users can place the alarm in the optimal detection position according to the kitchen layout. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the disassembled structure of a monitoring device for a gas self-closing valve according to the present invention.

[0015] Figure 2 This is a cross-sectional structural diagram of the protective body of this utility model.

[0016] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0017] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0018] Icons: 1-Main body of the protective cover, 2-Circuit board, 3-Main body pressure plate, 4-Micro switch, 5-Push rod, 6-Pulley, 7-Positioning hole, 8-Silicone ring, 9-Alarm, 10-Mounting post, 11-Magnet, 12-Annular groove, 13-Cable plug, 14-Snap-fit ​​plate, 15-Observation hole, 16-Groove, 17-Spring, 18-Snap-fit ​​post, 19-Sliding hole, 20-Limit block, 21-Relief groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] All electrical components involved in this application are prior art. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. According to the actual situation, a suitable controller can be selected to meet the control requirements. For specific connections and control sequences, please refer to the description below. The electrical connection between each electrical component is completed in the order of operation. The detailed connection methods are well known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0021] Figures 1 to 4 The following is an embodiment of the present invention.

[0022] Example 1: This utility model discloses a monitoring device for a gas self-closing valve, comprising a protective cover body 1 and an alarm 9. Inside the protective cover body 1, a circuit board 2 and a main pressure plate 3 are arranged sequentially from top to bottom. The circuit board 2 is equipped with an MCU and two microswitches 4. A push rod 5 is vertically slidably connected through the main pressure plate 3. The top of the push rod 5 slides through the circuit board 2. Paddles 6 are provided on both sides of the push rod 5. The circuit board 2 has through holes for the paddles 6 to slide through. The two microswitches 4 are spaced apart on both sides of the push rod 5. Positioning holes 7 are evenly distributed on the top of the protective cover body 1. A magnetic block is provided at the bottom of the positioning hole 7, and a silicone ring 8 surrounds the opening of the positioning hole 7. The alarm 9 is electrically connected to the MCU. A mounting post 10 corresponding to the positioning hole 7 protrudes from the bottom of the alarm 9. A magnet 11 attracts the magnetic block at the end of the mounting post 10. An annular groove 12 is formed around the outer side of the mounting post 10.

[0023] In this embodiment, the mounting posts 10 on the alarm 9 are aligned with the corresponding positioning holes 7 on the main body 1 of the protective cover. The alarm 9 is pushed so that the mounting posts 10 are inserted into the positioning holes 7. During this process, the outer side of the mounting post 10 compresses the silicone ring 8, causing the silicone ring 8 to deform, allowing the mounting post 10 to pass smoothly through the silicone ring 8. After the mounting post 10 is fully inserted into the positioning hole 7, the magnet 11 and the magnetic block adhere and attract each other. At the same time, the outer wall of the mounting post 10 no longer compresses the silicone ring 8, and the silicone ring 8 automatically and elastically returns to its initial shape without external force, so that the silicone ring 8 is placed in the annular groove 12, further advancing the mounting post 10. The limit switch is used to assemble the alarm 9 with the main body 1 of the protective cover. In use, when the gas self-closing valve malfunctions, it drives the push rod 5 to move synchronously. During the movement, the push rod 5 contacts two micro switches 4 that are spaced apart vertically through the paddle 6 on the push rod 5. By triggering the micro switches 4, the movement information of the push rod 5 is transmitted to the MCU. The MCU determines the abnormal state of the gas self-closing valve and plays the abnormal state and the handling method through the alarm 9, so that personnel can promptly discover the abnormality of the gas self-closing valve and quickly handle the abnormal situation according to the handling method played by the speaker.

[0024] Specifically, two microswitches 4 are used to acquire the motion state of the displacement height of the push rod 5 and transmit the motion state information to the MCU. Then, the motion state of the push rod 5 is used to determine the cause of the abnormal gas supply that caused the self-closing valve to close. Different movements of the push rod 5 correspond to different abnormal gas supply states. The alarm 9 can broadcast the self-closing valve closing action to warn the user, and at the same time broadcast the type of abnormal gas supply that caused the valve to close and the corresponding handling method.

[0025] When the gas self-closing valve is installed in a corner, inside a cabinet, or other area not easily observed by people during daily activities, pulling the alarm 9 causes the mounting post 10 at the bottom of the alarm 9 to slide out of the positioning hole 7. This separates the magnet 11 from the magnetic block. Simultaneously, the outer wall of the mounting post 10 presses against the silicone ring 8, causing the silicone ring 8 to deform and no longer limit the mounting post 10, allowing it to slide smoothly out of the positioning hole 7. This allows the alarm 9 to be removed from the protective cover body 1. Then, a specially designed adhesive iron plate is attached to the appropriate position according to the actual situation. Because the mounting post 10 of the alarm 9 has a magnet 11 at its end, the magnet 11 attracts the iron plate, allowing the alarm 9 to be installed in the corresponding position. This prevents the warning information emitted by the alarm 9 from being easily blocked or attenuated, thus affecting the warning effect. This structure allows the alarm 9 to be installed in a suitable position according to actual needs, regardless of the installation position of the gas self-closing valve. This overcomes the limitation of traditional integrated designs in terms of installation location, allowing users to place the alarm 9 in the optimal detection position according to the kitchen layout.

[0026] The device features double-sided adhesive on one side of the metal sheet, and a removable release film on the side of the adhesive away from the metal sheet. The alarm 9 employs an independent modular structure, including a housing containing a control circuit board, a horn, and a warning light electrically connected to the control circuit board. The integration of the horn and warning light via the control circuit board, and their shared enclosure within a separate housing, is common knowledge to those skilled in the art, and their installation relationship and structure can be directly derived from this common knowledge.

[0027] Example 2: Based on Example 1, a cable plug 13 electrically connected to the MCU is fixedly installed on the top of the protective cover body 1. The alarm 9 is connected to a flexible cable, and a cable socket adapted to the cable plug 13 is installed at the end of the flexible cable.

[0028] In this embodiment, during use, the alarm 9 and the MCU are electrically connected by inserting the cable socket into the cable plug 13 on the main body 1 of the protective cover. This connection method allows users to extend the alarm 9 to easily observable locations such as cabinet doors or kitchen walls.

[0029] Example 3: Based on Example 1, the lower end of the protective cover body 1 is provided with four snap-fit ​​plates 14, and the side wall of the protective cover body 1 is provided with observation holes 15.

[0030] In this embodiment, during use, the snap-fit ​​plate 14 is provided with a connection hole, and the protective cover body 1 is provided with a mounting hole. The connection hole and the mounting hole are fastened together by bolts and nuts, thereby facilitating the snap-fit ​​plate 14 to snap onto the gas self-closing valve; the observation hole 15 facilitates the observation of the gas self-closing valve. As a preferred embodiment, the protective cover body 1 contains a battery connected to the circuit board 2.

[0031] Example 4: Based on Example 1, the top of the push rod 5 is provided with a groove 16, and the bottom of the groove 16 is fixedly connected with a vertically arranged spring 17. The lower end of the adapter plate is provided with a locking post 18, and the upper end of the spring 17 is connected to the locking post 18. Specifically, the upper end of the spring 17 is engaged with the locking post 18, so that the spring 17 and the locking post 18 are not easy to fall off. The spring 17 is used to prevent the push rod 5 from falling off.

[0032] In a preferred embodiment, the main pressure plate 3 has a sliding hole 19, the push rod 5 passes through the sliding hole 19 and is slidably connected to the sliding hole 19, and a plurality of limiting blocks 20 are distributed in a ring array along the circumference of the outer side wall of the top of the push rod 5. The paddle 6 is fixedly installed on the push rod 5, and the paddle 6 has a force-relieving groove 21, and a protruding pressing part is formed on the side of the top of the paddle 6 away from the force-relieving groove 21. The pressing part moves with the push rod 5 to trigger the micro switch 4.

[0033] By setting the limiting block 20, the sliding stroke of the push rod 5 relative to the main pressure plate 3 can be effectively limited, preventing the push rod 5 from separating from the sliding hole 19 due to excessive sliding. By setting the stress relief groove 21, the contact part of the lever 6 has a certain elastic deformation capability. When the push rod 5 drives the lever 6 to move and the contact part contacts the micro switch 4, if the force is too large, the contact part can generate a small amount of elastic deformation in the direction of the stress relief groove 21, thereby absorbing the overload pressure. This ensures that the lever 6 has sufficient extension length to reliably trigger the micro switch, and also prevents excessive squeezing damage to the micro switch 4 due to excessive structural rigidity, significantly improving the operational stability and service life of the device.

[0034] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A monitoring device for a gas self-closing valve, characterized in that: The device includes a protective cover body (1) and an alarm (9). Inside the protective cover body (1), a circuit board (2) and a main pressure plate (3) are arranged sequentially from top to bottom. The circuit board (2) is equipped with an MCU and two micro switches (4). A push rod (5) is vertically slidably connected through the main pressure plate (3). The top of the push rod (5) slides through the circuit board (2). The push rod (5) has paddles (6) on both sides. The circuit board (2) has through holes for the paddles (6) to slide through. The two micro switches (4) are spaced vertically. The cover body (1) is provided with positioning holes (7) evenly distributed on both sides of the push rod (5). A magnetic block is provided at the bottom of the positioning hole (7). A silicone ring (8) is provided around the opening of the positioning hole (7). The alarm (9) is electrically connected to the MCU. The bottom of the alarm (9) is provided with a mounting post (10) corresponding to the positioning hole (7). The end of the mounting post (10) is provided with a magnet (11) that attracts the magnetic block. An annular groove (12) is provided around the outside of the mounting post (10).

2. The monitoring device for a gas self-closing valve according to claim 1, characterized in that: The top of the protective cover body (1) is fixedly installed with a cable plug (13) that is electrically connected to the MCU. The alarm (9) is connected to a flexible cable, and the end of the flexible cable is equipped with a cable socket that is compatible with the cable plug (13).

3. The monitoring device for a gas self-closing valve according to claim 1, characterized in that: The lower end of the protective cover body (1) is provided with four snap-fit ​​plates (14), and an observation hole (15) is provided on the side wall of the protective cover body (1).

4. A monitoring device for a gas self-closing valve according to claim 1, characterized in that: The protective cover body (1) contains a battery connected to the circuit board (2).

5. A monitoring device for a gas self-closing valve according to claim 1, characterized in that: The push rod (5) has a groove (16) at the top, and a vertically arranged spring (17) is fixedly connected to the bottom of the groove (16). The inner wall of the top of the cover body (1) has a locking post (18), and the upper end of the spring (17) is connected to the locking post (18).

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