Pipeline gas monitoring and alarming device with blocking function

Abstract

The utility model relates to pipeline gas monitoring alarm technical field, concretely relates to a pipeline gas monitoring alarm device with blocking function, including valve box, the valve box side assembly has the air inlet pipe, the valve box side assembly has the air outlet pipe, the valve box inside assembly has the valve mechanism, the valve mechanism includes the rotating lever, the rotary plate, the first movable rod, the first hinged rod, the recessed block, the rubber strip, the rubber pad, the sealing gasket, the second movable rod, the second hinged rod, the protruding block, the rotating lever rotates and is connected in the valve box inner wall back through bearing, the rotary plate fixed sleeve sets in the rotating lever arc face outer wall, the recessed block slidingly connects in the valve box inner wall front. The utility model discloses through gas sensor, PLC controller, motor, and then drives first movable rod and second movable rod to drive recessed block and protruding block to move respectively, can make recessed block and protruding block insert in very short time, realizes the blocking of gas transmission channel.

Description

Technical Field

[0001] This utility model relates to the field of pipeline gas monitoring and alarm technology, specifically a pipeline gas monitoring and alarm device with blocking function. Background Technology

[0002] The main component of methane gas is alkanes, with methane making up the vast majority. It does not support combustion or sustain breathing. When it reaches a certain concentration, it can cause suffocation due to lack of oxygen and can also cause combustion or explosion, directly threatening the lives of miners. Therefore, methane detection alarms are installed in mining areas, both in the mining area and around gas pipelines, to monitor the methane concentration in real time. Once the concentration exceeds the standard, an alarm is triggered immediately to prevent accidents.

[0003] Patent document CN222577978U discloses a pipeline gas monitoring and alarm device. This device includes a support frame, a housing movably mounted on top of the support frame, a transceiver antenna fixedly mounted on top of the housing, and a wireless serial port transceiver module and a logic controller fixedly mounted on the front top of the support frame. The wireless serial port transceiver module allows for connection between devices without signal transmission cables. During installation, adjusting the tightness of the fixing bolts applies pressure to the upper end of the bolts on the protective pad, increasing the relative static friction between the protective pad and the gas pipeline, thus limiting the relative position between the support frame and the gas pipeline. After installation, a battery is connected to the mine's power supply line via a cable. This method eliminates the need for connecting the device with a signal transmission cable, making installation faster.

[0004] Although the aforementioned application document was approved, adjusting the tightness of the fixing bolts to apply a certain pressure to the protective pad at the upper end of the fixing bolts increases the relative static friction between the protective pad and the gas pipeline, limiting the relative position between the support frame and the gas pipeline, and after installation, the battery can be connected to the power supply line in the mine via a cable. This method eliminates the step of using a signal transmission cable connection device, making the installation operation faster. However, if the pipeline is not blocked during use, the gas may continue to leak for several minutes or even longer, drastically increasing the risk. If it comes into contact with an open flame (such as sparks from electrical switches, static electricity, or a lighter), it will cause an explosion.

[0005] Therefore, a pipeline gas monitoring and alarm device with blocking function is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a pipeline gas monitoring and alarm device with a blocking function, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: including a valve box, wherein an air inlet pipe is mounted on the side of the valve box, an air outlet pipe is mounted on the side of the valve box, and a valve mechanism is mounted inside the valve box; The valve mechanism includes a rotating rod, a rotating plate, a first movable rod, a first hinged rod, a concave block, a rubber strip, a rubber pad, a sealing gasket, a second movable rod, a second hinged rod, and a protrusion. The rotating rod is rotatably connected to the back of the inner wall of the valve box via a bearing. The rotating plate is fixedly sleeved on the outer wall of the arc-shaped surface of the rotating rod. The first movable rod is hinged to the back of the rotating plate via the first hinged rod. The concave block is slidably connected to the front of the inner wall of the valve box. The rubber strip is fixedly connected to the side of the inner wall of the concave block. The protrusion is slidably connected to the front of the inner wall of the valve box. The rubber pad is fixedly connected to the side of the protrusion. The sealing gasket is fixedly connected to the sides of the protrusion and the concave block. The second movable rod is hinged to the back of the rotating plate via the second hinged rod.

[0008] Preferably, the end of the first movable rod away from the rotating plate is hinged to the front of the concave block via a hinge rod, and the end of the second movable rod away from the rotating plate is hinged to the front of the convex block.

[0009] Preferably, a motor is fixedly connected to the front of the valve box, the rotating rod moves through the valve box, the extended end of the rotating rod extends towards the bottom of the inner wall of the valve box, and the output end of the motor is fixedly connected to the extended end of the rotating rod.

[0010] Preferably, the rubber strip is L-shaped, and the side of the rubber pad has a groove for insertion with the rubber strip.

[0011] Preferably, the rotating rod, rotating plate, first movable rod, motor, first hinge rod, second movable rod, and second hinge rod form a set of drive components, and there are two sets of drive components in total. The two motors are equipped with multi-axis linkage drivers.

[0012] Preferably, a PLC controller is fixedly connected to the front of the valve box, a buzzer is fixedly connected to the top of the valve box, and a gas concentration sensor is fixedly connected to the inner wall of the arc-shaped surface of the air inlet pipe.

[0013] Preferably, the PLC controller is electrically connected to the buzzer and the gas concentration sensor.

[0014] Preferably, the PLC controller is electrically connected to the motor. Compared with the prior art, this utility model provides a pipeline gas monitoring and alarm device with blocking function, which has the following beneficial effects: 1. By using a gas sensor, PLC controller, and motor, the first and second movable rods are driven to move the concave and convex blocks respectively, which can make the concave and convex blocks connect in a very short time, thereby blocking the gas transmission channel.

[0015] Second, by inserting a rubber strip into the groove on the side of the rubber pad, while the lower surface of the concave block contacts the rubber pad, and the side sealing gasket seals and blocks the side of the air intake pipe, multiple seals are formed, which can effectively prevent gas from leaking from all possible gaps. The elasticity of the rubber material can ensure that it fits tightly with the contact surface under certain pressure, and can maintain good sealing performance even under high gas pressure, thereby reliably blocking the transmission of gas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view of part of the structure of this utility model; Figure 3 This is a front view of part of the structure of this utility model; Figure 4 This is a schematic diagram of the front cross-sectional structure of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the front cross-sectional structure of the present invention. Figure 2 ; Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Valve box; 2. Valve mechanism; 21. Rotating rod; 22. Rotating plate; 23. First movable rod; 231. First hinge rod; 24. Concave block; 25. Motor; 26. Rubber strip; 27. Rubber pad; 271. Groove; 28. Sealing gasket; 29. ​​Second movable rod; 291. Second hinge rod; 210. Protrusion; 3. Inlet pipe; 4. Outlet pipe; 5. PLC controller; 6. Buzzer; 7. Gas concentration sensor. Detailed Implementation

[0018] 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. Example

[0019] See Figures 1-6This embodiment provides a pipeline gas monitoring and alarm device with blocking function, including a valve box 1, an air inlet pipe 3 mounted on the side of the valve box 1, an air outlet pipe 4 mounted on the side of the valve box 1, and a valve mechanism 2 mounted inside the valve box 1. The valve mechanism 2 includes a rotating rod 21, a rotating plate 22, a first movable rod 23, a first hinge rod 231, a concave block 24, a rubber strip 26, a rubber pad 27, a sealing gasket 28, a second movable rod 29, a second hinge rod 291, and a protrusion 210. The rotating rod 21 is rotatably connected to the back of the inner wall of the valve box 1 via a bearing. The rotating plate 22 is fixedly sleeved on the outer wall of the arc-shaped surface of the rotating rod 21. The first movable rod 23 is hinged to the back of the rotating plate 22 via the first hinge rod 231. The concave block 24 is slidably connected to the front of the inner wall of the valve box 1. The rubber strip 26 is fixedly connected to the side of the inner wall of the concave block 24. The protrusion 210 is slidably connected to the front of the inner wall of the valve box 1. The rubber pad 27 is fixedly connected to the side of the protrusion 210. The sealing gasket 28 is fixedly connected to the sides of the protrusion 210 and the concave block 24. The second movable rod 29 is hinged to the back of the rotating plate 22 via the second hinge rod 291.

[0020] See Figure 3 The motor 25 is started, which drives the rotating plate 22 to rotate. The rotating plate 22 drives the first movable rod 23 to move to the bottom. The first movable rod 23 drives the first hinge rod 231 to move to the bottom. The first hinge rod 231 drives the concave block 24 to descend. At the same time, the rotating plate 22 drives the second movable rod 29 to rise. The second movable rod 29 drives the second hinge rod 291 to rise. The second hinge rod 291 drives the protrusion 210 to rise. Through the insertion of the protrusion 210 and the concave block 24, the concave block 24 drives the rubber strip 26 to descend. The rubber strip 26 inserts into the groove 271. At the same time, the lower surface of the concave block 24 contacts the rubber pad 27, so that the lower surface of the concave block 24 contacts the upper surface of the protrusion 210 to achieve a seal. At the same time, the concave block 24 and the protrusion 210 move towards each other, driving the side sealing pad 28 to seal and block the side of the air intake pipe 3.

[0021] The end of the first movable rod 23 furthest from the rotating plate 22 is hinged to the front of the concave block 24 via a hinge rod. The end of the second movable rod 29 furthest from the rotating plate 22 is hinged to the front of the protrusion 210. The rotation of the rotating plate 22 drives the first movable rod 23 to lower the first hinge rod 231 and the concave block 24, while the second movable rod 29 drives the second hinge rod 291 and the protrusion 210 to rise, thereby achieving the insertion of the concave block 24 and the protrusion 210 and realizing the blocking effect. A motor 25 is fixedly connected to the front of the valve box 1. A rotating rod 21 moves through the valve box 1. The extended end of the rotating rod 21 extends to the bottom of the inner wall of the valve box 1. The output end of the motor 25 is fixedly connected to the extended end of the rotating rod 21. The rotating rod 21 is driven to rotate by the motor 25, and the rotating rod 21 drives the rotating plate 22 to rotate.

[0022] The rubber strip 26 is L-shaped to fit the shape of the groove 271. The side of the rubber pad 27 has a groove 271 for inserting into the rubber strip 26, so that the rubber strip 26 can be inserted into the groove 271.

[0023] The rotating rod 21, rotating plate 22, first movable rod 23, motor 25, first hinge rod 231, second movable rod 29, and second hinge rod 291 form a set of drive components. There are two sets of drive components. The two motors 25 are equipped with multi-axis linkage drivers. Through the multi-axis linkage drivers, the two motors 25 can be driven simultaneously to achieve smooth movement of the concave block 24 and the convex block 210 on both sides.

[0024] A PLC controller 5 is fixedly connected to the front of the valve box 1, and a buzzer 6 is fixedly connected to the top of the valve box 1. A gas concentration sensor 7 is fixedly connected to the inner wall of the arc-shaped surface of the air inlet pipe 3. The PLC controller 5 is electrically connected to the buzzer 6, the gas concentration sensor 7, and the motor 25. The gas concentration sensor 7 detects the gas concentration inside the air inlet pipe 3. When the concentration exceeds the standard, the gas concentration sensor 7 transmits the data to the PLC controller 5, which then controls the motor 25 to start. The motor 25 drives the concave block 24 and the convex block 210 to connect, thereby blocking the continued transmission of gas to the air inlet pipe 4. The PLC controller 5 controls the buzzer 6 to start to warn the staff.

[0025] The PLC controller (model 5) is a Siemens S7-1200, the motor (model 25) is a Siemens 1LE0, the gas concentration sensor (model 7) is a CH4-A3, and the buzzer (model 6) is an AD16-22SM.

[0026] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0027] 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 pipeline gas monitoring and alarm device with blocking function, characterized in that: It includes a valve box (1), an air inlet pipe (3) is mounted on the side of the valve box (1), an air outlet pipe (4) is mounted on the side of the valve box (1), and a valve mechanism (2) is mounted inside the valve box (1). The valve mechanism (2) includes a rotating rod (21), a rotating plate (22), a first movable rod (23), a first hinge rod (231), a concave block (24), a rubber strip (26), a rubber pad (27), a sealing gasket (28), a second movable rod (29), a second hinge rod (291), and a protrusion (210). The rotating rod (21) is rotatably connected to the back of the inner wall of the valve box (1) via a bearing. The rotating plate (22) is fixedly sleeved on the outer wall of the arc-shaped surface of the rotating rod (21). The first movable rod (23) is hinged to the first hinge rod (231). The back of the rotating plate (22), the concave block (24) is slidably connected to the front of the inner wall of the valve box (1), the rubber strip (26) is fixedly connected to the side of the inner wall of the concave block (24), the protrusion (210) is slidably connected to the front of the inner wall of the valve box (1), the rubber pad (27) is fixedly connected to the side of the protrusion (210), the sealing gasket (28) is fixedly connected to the side of the protrusion (210) and the concave block (24), and the second movable rod (29) is hinged to the back of the rotating plate (22) through the second hinge rod (291).

2. The pipeline gas monitoring and alarm device with blocking function according to claim 1, characterized in that: The end of the first movable rod (23) away from the rotating plate (22) is hinged to the front of the concave block (24) via a hinge rod, and the end of the second movable rod (29) away from the rotating plate (22) is hinged to the front of the protrusion (210).

3. A pipeline gas monitoring and alarm device with blocking function according to claim 2, characterized in that: A motor (25) is fixedly connected to the front of the valve box (1). The rotating rod (21) moves through the valve box (1). The extended end of the rotating rod (21) extends to the bottom of the inner wall of the valve box (1). The output end of the motor (25) is fixedly connected to the extended end of the rotating rod (21).

4. A pipeline gas monitoring and alarm device with blocking function according to claim 3, characterized in that: The rubber strip (26) is L-shaped, and the side of the rubber pad (27) is provided with a groove (271) for inserting into the rubber strip (26).

5. A pipeline gas monitoring and alarm device with blocking function according to claim 1, characterized in that: The rotating rod (21), rotating plate (22), first movable rod (23), motor (25), first hinge rod (231), second movable rod (29), and second hinge rod (291) form a set of drive components. There are two sets of drive components. The two motors (25) are equipped with multi-axis linkage drivers.

6. A pipeline gas monitoring and alarm device with blocking function according to claim 5, characterized in that: A PLC controller (5) is fixedly connected to the front of the valve box (1), a buzzer (6) is fixedly connected to the top of the valve box (1), and a gas concentration sensor (7) is fixedly connected to the inner wall of the arc-shaped surface of the air inlet pipe (3).

7. A pipeline gas monitoring and alarm device with blocking function according to claim 6, characterized in that: The PLC controller (5) is electrically connected to the buzzer (6) and the PLC controller (5) is electrically connected to the gas concentration sensor (7).

8. A pipeline gas monitoring and alarm device with blocking function according to claim 6, characterized in that: The PLC controller (5) is electrically connected to the motor (25).

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