Fuel gas monitoring cut-off control device

Abstract

The utility model discloses a fuel gas monitoring cut-off control device, and relates to the technical field of fuel gas monitoring, the fuel gas monitoring cut-off control device comprises a fuel gas pipe, a fuel gas valve is arranged on the fuel gas pipe, a control mechanism is further installed on the fuel gas pipe, and the control mechanism comprises a fixing assembly and a cutting assembly, the cut-off assembly comprises a plane bearing installed on the top face of the transverse rod. According to the fuel gas monitoring and cutting-off control device, the motor is started to drive the rotating shaft to rotate, when the rotating shaft rotates, the rotating rod at the bottom end of the rotating shaft is driven to rotate together, when the rotating rod rotates, the shifting rod moves along with rotation of the rotating rod, and due to the fact that the shifting rod makes contact with a fuel gas valve, the shifting rod exerts acting force on the fuel gas valve; when gas leakage occurs, the gas valve is pushed to be closed through movement of the shifting rod, so that circulation of gas in the gas pipe is cut off, the function of automatically cutting off gas leakage is achieved, it is guaranteed that gas circulation can be rapidly and effectively cut off when gas leakage occurs, and use safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of gas monitoring technology, specifically a gas monitoring and cut-off control device. Background Technology

[0002] Gas fuels are a general term for gaseous fuels that can burn and release heat for use by urban residents and industrial enterprises. There are many types of gas fuels, mainly including natural gas, manufactured gas, liquefied petroleum gas, biogas, and coal gas.

[0003] Currently, there is still a large number of older gas pipelines on the market, and most of the gas valves that are used with them are manual valves. When the gas monitoring device detects a gas leak, the user often needs to manually close the gas valve. Because the gas supply cannot be cut off in time, it can still cause serious safety accidents. Therefore, this utility model provides a gas monitoring and shut-off control device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a gas monitoring and shut-off control device, which solves the problem that when a gas monitoring device detects a gas leak, some manual valves often require the user to manually close them, which can lead to serious safety accidents due to the inability to cut off the gas supply in time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas monitoring and shut-off control device, comprising a gas pipe, a gas valve mounted on the gas pipe, and a control mechanism installed on the gas pipe, the control mechanism comprising:

[0006] The fixing component includes a crossbar;

[0007] The cutting assembly includes a planar bearing mounted on the top surface of a crossbar, a mounting plate mounted on the top surface of the planar bearing, a motor mounted on the top surface of the mounting plate, a rotating shaft mounted on the output end of the motor, the outer wall of the rotating shaft sequentially passing through the mounting plate, the planar bearing and the surface of the crossbar and extending downwards, a rotating rod mounted on the bottom end of the rotating shaft, and a lever provided at the bottom of the rotating rod, the lever being able to contact a gas valve.

[0008] Preferably, the rotating rod has multiple second adjustment holes through it, and the top of the lever is equipped with a second fixing screw that cooperates with the second adjustment holes.

[0009] Preferably, a U-shaped limiting block is installed on the top surface of the crossbar, a pressure sensor is installed on the inner wall of one side of the U-shaped limiting block, a side rod is installed on the outer surface of the mounting plate, and the side rod is placed inside the U-shaped limiting block and can contact the pressure sensor.

[0010] Preferably, a controller is also installed on the crossbar, and a gas leak detector is electrically connected to the controller. The gas leak detector is used to monitor the gas concentration in the environment.

[0011] Preferably, the crossbar has a connecting plate symmetrically arranged on its outer surface, and a plurality of first adjustment holes are provided through the connecting plate. A first fixing screw that cooperates with the first adjustment holes is provided between the crossbar and the connecting plate.

[0012] Preferably, a pipe clamp is fixedly connected to the bottom of the connecting plate, and the pipe clamp is fixedly sleeved on the outer surface of the gas pipe.

[0013] Beneficial effects

[0014] This utility model provides a gas monitoring and shut-off control device. Compared with the prior art, it has the following advantages:

[0015] 1. This gas monitoring and shut-off control device is started by a motor, which drives the rotating shaft to rotate. When the shaft rotates, it drives the rotating rod at its bottom to rotate as well. When the rotating rod rotates, the lever moves along with the rotating rod. Since the lever is in contact with the gas valve, the lever applies force to the gas valve. The movement of the lever will push the gas valve to close, thereby cutting off the flow of gas in the gas pipe and realizing the automatic shut-off function for gas leaks. This ensures that the gas flow can be quickly and effectively cut off in the event of a gas leak, thus ensuring safe use.

[0016] 2. This gas monitoring and shut-off control device uses a motor to continuously drive a rotating shaft, a rotating rod, and a lever to close the gas valve. The gas valve generates a reaction force on the lever. This reaction force is transmitted to the side rod through the rotating rod, shaft, and mounting plate. The side rod then transmits this reaction force to the pressure sensor, causing a change in the pressure value detected by the sensor. The pressure sensor feeds this pressure signal back to the controller, which can then determine that the gas valve is completely closed. This allows the controller to stop the motor, preventing excessive wear or damage to components caused by continued motor operation, while ensuring reliable closure of the gas valve.

[0017] 3. This gas monitoring and shut-off control device can adjust the position of the lever relative to the rotating rod by installing the second fixing screw in different second adjustment holes, so that the lever can accurately match gas valves of different specifications, ensuring that the lever can effectively apply force when pushing the gas valve to close, thus improving the adaptability and versatility of the device to different types of gas valves. Attached Figure Description

[0018] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;

[0019] Figure 2 This is a three-dimensional appearance diagram of the fixing component of this utility model;

[0020] Figure 3 This is a three-dimensional appearance schematic diagram of the cutting component of this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the appearance of this practical gas leak detector.

[0022] In the diagram: 1. Gas pipe; 11. Gas valve; 2. Fixing assembly; 21. Crossbar; 22. Connecting plate; 23. First adjusting hole; 24. First fixing screw; 25. Pipe clamp; 3. Cut-off assembly; 31. Surface bearing; 32. Mounting plate; 33. Side rod; 34. Motor; 35. Rotating shaft; 36. Rotating rod; 37. Second adjusting hole; 38. Toggle lever; 39. Second fixing screw; 4. U-shaped limit block; 41. Pressure sensor; 5. Controller; 6. Gas leak detector. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides two technical solutions:

[0025] Figures 1-4 The first embodiment is shown: a gas monitoring and cut-off control device, including a gas pipe 1, a gas valve 11 provided on the gas pipe 1, and a control mechanism installed on the gas pipe 1, the control mechanism including:

[0026] Fixing component 2, which includes a crossbar 21;

[0027] The cutting assembly 3 includes a flat bearing 31 mounted on the top surface of the crossbar 21. A mounting plate 32 is mounted on the top surface of the flat bearing 31. A motor 34 is mounted on the top surface of the mounting plate 32. A rotating shaft 35 is mounted on the output end of the motor 34. The outer wall of the rotating shaft 35 sequentially moves through the mounting plate 32, the flat bearing 31 and the surface of the crossbar 21 and extends downward. A rotating rod 36 is mounted on the bottom end of the rotating shaft 35. A lever 38 is provided at the bottom of the rotating rod 36 and the lever 38 can contact the gas valve 11.

[0028] A controller 5 is also installed on the crossbar 21. A gas leak detector 6 is electrically connected to the controller 5. The gas leak detector 6 is used to monitor the gas concentration in the environment.

[0029] Specifically, when the controller 5 receives the gas concentration information from the gas leak detector 6, it will make a judgment based on preset conditions. If the gas concentration exceeds the safe range, the controller 5 will start the motor 34 of the cut-off component 3. After the motor 34 starts, its output end drives the rotating shaft 35 to rotate. When the rotating shaft 35 rotates, it will drive the rotating rod 36 at its bottom to rotate as well. When the rotating rod 36 rotates, the lever 38 will move with the rotation of the rotating rod 36. Since the lever 38 is in contact with the gas valve 11, the lever 38 will apply a force to the gas valve 11. The movement of the lever 38 will push the gas valve 11 to close, thereby cutting off the flow of gas in the gas pipe 1, realizing the automatic cut-off function for gas leaks, ensuring that the gas flow can be quickly and effectively cut off in the event of a gas leak, and ensuring safe use.

[0030] Figures 1-4 The second embodiment is shown. The main difference from the first embodiment is that a U-shaped limiting block 4 is installed on the top surface of the crossbar 21, a pressure sensor 41 is installed on the inner wall of one side of the U-shaped limiting block 4, a side rod 33 is installed on the outer surface of the mounting plate 32, and the side rod 33 is placed inside the U-shaped limiting block 4 and can contact the pressure sensor 41.

[0031] Specifically, as the motor 34 continuously drives the shaft 35, lever 36, and lever 38 to close the gas valve 11, the gas valve 11 generates a reaction force on the lever 38. This reaction force is transmitted to the side lever 33 through the lever 36, shaft 35, and mounting plate 32. The side lever 33 then transmits this reaction force to the pressure sensor 41, causing a change in the pressure value detected by the pressure sensor 41. The pressure sensor 41 feeds this pressure signal back to the controller 5, which can then determine that the gas valve 11 is completely closed, thereby controlling the motor 34 to stop operating. This prevents the motor 34 from continuing to run and causing excessive wear or damage to components, while ensuring that the gas valve 11 is reliably closed.

[0032] In this embodiment, a plurality of second adjustment holes 37 are provided through the rotating rod 36, and a second fixing screw 39 that mates with the second adjustment holes 37 is installed at the top of the lever 38. A connecting plate 22 is symmetrically provided on the outer surface of the crossbar 21, and a plurality of first adjustment holes 23 are provided through the connecting plate 22. A first fixing screw 24 that mates with the first adjustment holes 23 is provided between the crossbar 21 and the connecting plate 22. A pipe clamp 25 is fixedly connected to the bottom of the connecting plate 22, and the pipe clamp 25 is fixedly sleeved on the outer surface of the gas pipe 1.

[0033] Specifically, by installing the second fixing screw 39 in different second adjusting holes 37, the position of the lever 38 relative to the rotating rod 36 can be adjusted, allowing the lever 38 to accurately engage with gas valves 11 of different specifications. This ensures that the lever 38 can effectively apply force when pushing the gas valve 11 to close, improving the adaptability and versatility of the device for different types of gas valves. Multiple first adjusting holes 23 are provided through the connecting plate 22, and it is connected to the crossbar 21 via the first fixing screw 24. This design allows for adjustment of the position of the crossbar 21 relative to the connecting plate 22. By installing the first fixing screw 24 in different first adjusting holes 23, the position of the crossbar 21 in the horizontal or vertical direction can be adjusted to adapt to different installation environments and space constraints. The pipe clamp 25 is used to securely fix the entire control mechanism to the outer surface of the gas pipe 1.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] During operation, the gas leak detector 6 continuously monitors the gas concentration in the environment and transmits the monitoring information to the controller 5. After receiving the information, the controller 5 judges the gas concentration. Once the gas concentration exceeds the preset safety threshold, the controller 5 will start the motor 34 of the cut-off component 3. The motor 34 starts to run, driving the rotating shaft 35 to rotate. The rotation of the rotating shaft 35 drives the rotating rod 36 to rotate as well. The rotation of the rotating rod 36 will cause the bottom lever 38 to contact the gas valve 11, thereby pushing the gas valve 11 to start closing, so as to achieve the purpose of cutting off the gas supply.

[0036] During the operation of the shut-off assembly 3, when the lever 38 contacts and pushes the gas valve 11 to close, the lever 38 experiences a reaction force from the gas valve 11. This reaction force is transmitted to the motor 34, causing the motor 34 to rotate slightly. This slight rotation of the motor 34 moves the mounting plate 32, causing the side rod 33 on the mounting plate 32 to approach and eventually contact the pressure sensor 41 on the inner wall of the U-shaped limiting block 4. As the lever 38 continues to push the gas valve 11 to close, when the gas valve 11 is completely closed, it can no longer rotate, and the lever 38 will also stop rotating. At this point, the reaction force on the lever 38 reaches its maximum. This force, transmitted through the aforementioned path, increases the pressure on the pressure sensor 41. The pressure sensor 41 detects this pressure change, and when the detected pressure reaches a predetermined threshold, it indicates that the gas valve 11 has been completely closed. At this time, the controller 5 will control the motor 34 to stop running based on the signal from the pressure sensor 41, completing the automatic shut-off process in case of gas leakage, ensuring that the gas valve 11 is reliably closed, thereby ensuring the safety of gas use.

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

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas monitoring cut-off control device comprising a gas pipe (1) provided with a gas valve (11), characterized in that: The gas pipe (1) is also provided with a control mechanism, wherein the control mechanism comprises: A fixing assembly (2) comprising a horizontal rod (21); A cutting assembly (3) comprising a flat bearing (31) installed on the top surface of the horizontal rod (21), wherein the top surface of the flat bearing (31) is provided with a mounting plate (32), the top surface of the mounting plate (32) is provided with a motor (34), the output end of the motor (34) is provided with a rotating shaft (35), the outer wall of the rotating shaft (35) is sequentially movably penetrated through the mounting plate (32), the flat bearing (31) and the surface of the horizontal rod (21) and extends to the lower side, the bottom end of the rotating shaft (35) is provided with a rotating rod (36), the bottom of the rotating rod (36) is provided with a lever (38), and the lever (38) can contact the gas valve (11).

2. A gas monitoring cut-out control according to claim 1, characterised in that: A plurality of second adjusting holes (37) are formed through the rotating rod (36), and the top end of the lever (38) is provided with a second fixing screw (39) matched with the second adjusting hole (37).

3. A gas monitoring shut-off control device according to claim 1, wherein: The top surface of the horizontal rod (21) is provided with a U-shaped limiting block (4), the inner wall of one side of the U-shaped limiting block (4) is provided with a pressure sensor (41), the outer surface of the mounting plate (32) is provided with a side rod (33), the side rod (33) is arranged in the U-shaped limiting block (4) and can contact the pressure sensor (41).

4. A gas monitoring shut-off control device according to claim 1, wherein: The horizontal rod (21) is also provided with a controller (5), the controller (5) is electrically connected with a gas leakage detector (6), and the gas leakage detector (6) is used for monitoring the gas concentration in the environment.

5. A gas monitoring shut-off control device according to claim 1, wherein: The outer surface of the horizontal rod (21) is symmetrically provided with a connecting plate (22), a plurality of first adjusting holes (23) are formed through the connecting plate (22), and the first adjusting holes (23) are matched with first fixing screws (24) between the horizontal rod (21) and the connecting plate (22).

6. A gas monitoring cut-out control according to claim 5, wherein: The bottom of the connecting plate (22) is fixedly connected with a pipe clamp (25), and the pipe clamp (25) is fixedly sleeved on the outer surface of the gas pipe (1).

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