Methane gas alarm

Abstract

The utility model belongs to the technical field of gas detection alarm, and particularly relates to a methane gas alarm, which comprises a wall surface, a mounting plate and a machine body, a methane gas detection alarm assembly is arranged on the machine body, a suspension stable mounting group mechanism is arranged between the machine body and the mounting plate, one side of the wall surface is fixedly connected with a guide rail, and the other side of the wall surface is fixedly connected with the mounting plate. A lifting assembly is arranged between the guide rail and the mounting plate, and the methane gas detection alarm assembly comprises an alarm fixedly connected to the top of the machine body and an equipment box detachably and fixedly connected to one side of the machine body. The suspension device is reasonable in structural design, through the arrangement of the transverse plate, the insertion plate and the suspension base, compared with a suspension mode adopting a suspension ring and a traction rope, suspension installation is more stable, meanwhile, the limiting plate can stretch out to abut against the top of the transverse plate, and then the transverse plate and the insertion plate are stably fixed between the suspension base and the limiting plate, so that suspension installation is more stable; therefore, the machine body is not easy to swing and shake so as not to influence the accuracy of detection and alarm.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection alarm, in particular to a methane gas alarm. Background Art

[0002] Methane gas detection alarms are widely used in metallurgy, power plants, chemical industry, mines, tunnels, underground pipelines and other places to effectively prevent poisoning accidents and ensure safe production. In biogas production, methane concentration is one of the most important parameters. By detecting the methane concentration, it is determined to replace the production raw materials to achieve the maximum production capacity. If the gas supply system is in use, once a leak occurs, it will cause an accident, affect physical health, cause equipment loss, and even endanger human life. Methane is not only a flammable and explosive gas, but also a toxic and harmful gas, so it needs to be detected to play a preventive role.

[0003] After searching: a suspended methane gas detection alarm with the authorization announcement number CN219867310U includes a mounting base, a circular frame is fixedly connected to the bottom of the mounting base, a motor is fixedly connected to the outer wall of the circular frame, a partition is fixedly connected to the inside of the circular frame, a through hole is opened on the outer wall of the partition, a rotating rod is rotatably connected to the inner wall of the through hole, one end of the motor output shaft is fixedly connected to the outer wall of the rotating rod, and both ends of the rotating rod are rotatably connected to the inner wall of the circular frame.

[0004] However, the methane gas alarm mentioned above still has some shortcomings. The methane gas alarm is suspended and installed by using a lifting ring and a traction rope. However, the lifting ring and the traction rope are prone to swing, which reduces the stability of the suspension installation, thereby reducing the accuracy of the methane gas detection alarm. Therefore, we propose a methane gas alarm to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned shortcomings and to propose a methane gas alarm.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A methane gas alarm comprises a wall, a mounting plate and a body, wherein a methane gas detection alarm component is arranged on the body, a hanging stable mounting group mechanism is arranged between the body and the mounting plate, a guide rail is fixedly connected to one side of the wall, a lifting component is arranged between the guide rail and the mounting plate, the methane gas detection alarm component comprises an alarm fixedly connected to the top of the body and a device box detachably fixedly connected to one side of the body, an infrared sensor and a catalytic combustion sensor are fixedly arranged on one side of the device box in sequence from top to bottom.

[0008] Preferably, a threaded sleeve is fixedly connected to one side of the machine body, a screw is provided inside the threaded sleeve, and the equipment box is fixedly connected to one end of the screw.

[0009] Preferably, the lifting assembly includes a driving motor fixedly connected to the top of the guide rail, and a lifting screw rod rotatably connected to the top inner wall and the bottom inner wall of the guide rail, the output shaft of the driving motor is fixedly connected to the top of the lifting screw rod, the outer threaded sleeve of the lifting screw rod is provided with a lifting plate, and the mounting plate is fixedly connected to one side of the lifting plate.

[0010] Preferably, the lifting plate sliding sleeve is arranged in the guide rail.

[0011] Preferably, the suspension stable installation group mechanism includes a suspension component and a reinforcement component, and the suspension component includes two cross plates fixedly connected to the other side of the body and two suspension seats fixedly connected to one side of the mounting plate. The bottom of the cross plate is fixedly connected with a plug plate, and the two plug plates are respectively movably clamped in the corresponding suspension seats, and the two cross plates are movably abutted against the top of the suspension seat.

[0012] Preferably, two cavities are defined in the mounting plate, and the reinforcement assembly comprises a threaded rod rotatably connected between the two cavities, two movable plates are provided on the outer threaded sleeve of the threaded rod, the bottoms of the two movable plates are rotatably connected to connecting rods, the bottom ends of the two connecting rods are rotatably connected to limit plates, and the two limit plates are movably abutted against the tops of the corresponding cross plates.

[0013] Preferably, two rectangular openings are opened on one side of the mounting plate, the two limiting plates are slidably sleeved in the corresponding rectangular openings respectively, and the two movable plates are slidably sleeved in the corresponding cavities respectively.

[0014] Preferably, the top end of the threaded rod extends to the top of the mounting plate and is fixedly connected to a hand wheel.

[0015] In the utility model, a methane gas alarm is described, in which the driving motor in the lifting assembly drives the rotation of the lifting screw rod, and under the guidance of the guide rail, the lifting screw rod drives the lifting and lowering of the lifting plate, the mounting plate and the machine body, so that during maintenance, the machine body can be lowered to a height where personnel can operate and maintain, without the need for personnel to climb for maintenance, making maintenance more convenient and safer. At the same time, when in use, the machine body can be raised to a corresponding height to detect and alarm methane gas, and the threaded connection between the threaded sleeve and the screw rod facilitates the disassembly and assembly of the equipment box, and facilitates the inspection and maintenance of the infrared sensor and the catalytic combustion sensor.

[0016] In the utility model, the methane gas alarm described in the utility model, when the two plug plates are inserted into the hanging seat, the cross plate is abutted against the top of the hanging seat, thereby achieving the purpose of hanging and installing the machine body. Compared with the hanging method using a hanging ring and a traction rope, the hanging installation of this article is more stable, so that the machine body is not easy to swing and shake, which affects the accuracy of detection and alarm. At the same time, the threaded rod is rotated by the hand wheel, and the threaded rod drives the two movable plates and the connecting rod to move downward. The two connecting rods drive the two limit plates to move left and extend out and abut against the top of the cross plate, so that the cross plate and the plug plate can be firmly fixed between the hanging seat and the limit plate, making the installation more stable. When disassembling and maintenance, the threaded rod is rotated in the opposite direction to make the limit plate move right and retract into the cavity, so that the cross plate is not limited. At this time, the machine body, the cross plate and the plug plate can be disassembled from the hanging seat;

[0017] The utility model has a reasonable structural design. Through the arrangement of the horizontal plate, the plug plate and the suspension seat, the suspension installation of this article is more stable than the suspension method using a lifting ring and a traction rope. At the same time, the limit plate can be extended out to abut against the top of the horizontal plate, and then the horizontal plate and the plug plate are firmly fixed between the suspension seat and the limit plate, making the suspension installation more stable, so that the machine body is not easy to swing and affect the accuracy of the detection alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a methane gas alarm proposed by the utility model;

[0019] Figure 2 This is a cross-sectional view of a methane gas alarm proposed by the utility model;

[0020] Figure 3 This is a structural schematic diagram of part A of a methane gas alarm proposed by the utility model.

[0021] In the figure: 1. wall; 2. guide rail; 3. drive motor; 4. mounting plate; 5. horizontal plate; 6. suspension seat; 7. plug-in plate; 8. limit plate; 9. body; 10. alarm; 11. threaded sleeve; 12. catalytic combustion sensor; 13. screw; 14. equipment box; 15. infrared sensor; 16. lifting screw; 17. lifting plate; 18. cavity; 19. hand wheel; 20. threaded rod; 21. moving plate; 22. connecting rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-3A methane gas alarm comprises a wall 1, a mounting plate 4 and a body 9, a methane gas detection alarm component is arranged on the body 9, a hanging stable mounting group mechanism is arranged between the body 9 and the mounting plate 4, a guide rail 2 is fixedly connected to one side of the wall 1, a lifting component is arranged between the guide rail 2 and the mounting plate 4, the methane gas detection alarm component comprises an alarm 10 fixedly connected to the top of the body 9 and a device box 14 detachably fixedly connected to one side of the body 9, an infrared sensor 15 and a catalytic combustion sensor 12 are fixedly arranged on one side of the device box 14 from top to bottom in sequence.

[0024] In the utility model, a threaded sleeve 11 is fixedly connected to one side of the body 9, a screw 13 is provided in the threaded sleeve 11, and an equipment box 14 is fixedly connected to one end of the screw 13. The threaded connection between the threaded sleeve 11 and the screw 13 facilitates the disassembly and assembly of the equipment box 14, and facilitates the inspection and maintenance of the infrared sensor 15 and the catalytic combustion sensor 12.

[0025] In the utility model, the lifting assembly includes a driving motor 3 fixedly connected to the top of the guide rail 2, and a lifting screw 16 rotatably connected to the top inner wall and the bottom inner wall of the guide rail 2. The output shaft of the driving motor 3 is fixedly connected to the top of the lifting screw 16. The outer thread sleeve of the lifting screw 16 is provided with a lifting plate 17. The mounting plate 4 is fixedly connected to one side of the lifting plate 17. The driving motor 3 in the lifting assembly drives the rotation of the lifting screw 16. Under the guidance of the guide rail 2, the lifting screw 16 drives the lifting plate 17, the mounting plate 4 and the machine body 9 to rise and fall. Therefore, during maintenance, the machine body 9 can be lowered to a height where personnel can operate and maintain it, without the need for personnel to climb high for maintenance, making maintenance more convenient and safe. At the same time, when in use, the machine body 9 can be raised to a corresponding height to detect and alarm methane gas.

[0026] In the utility model, the lifting plate 17 is slidably sleeved in the guide rail 2 , which is conducive to guiding and limiting the lifting plate 17 so that it does not rotate together with the lifting screw 16 .

[0027] In the utility model, the suspension stable installation group mechanism includes a suspension component and a reinforcement component. The suspension component includes two horizontal plates 5 fixedly connected to the other side of the body 9 and two suspension seats 6 fixedly connected to one side of the mounting plate 4. The bottom of the horizontal plate 5 is fixedly connected with a plug plate 7. The two plug plates 7 are respectively movably clamped in the corresponding suspension seats 6. The two horizontal plates 5 are movably abutted against the top of the suspension seat 6. Two cavities 18 are provided in the mounting plate 4. The reinforcement component includes a threaded rod 20 rotatably connected between the two cavities 18. The outer thread sleeve of the threaded rod 20 is provided with two movable plates 21. The bottoms of the two movable plates 21 are rotatably connected with connecting rods 22. The bottom ends of the two connecting rods 22 are rotatably connected to the limiting plates 8. The two limiting plates 8 are movably abutted against the tops of the corresponding horizontal plates 5. When the suspension is installed and used, the two plug plates 7 are inserted into the suspension seat 6. When the lever 18 is in the upright position, the lever 18 is in the upright position, and the lever 18 is in the upright position, so that the lever 18 can be easily moved to the left and the lever 18 can be easily moved to the right ...

[0028] In the utility model, two rectangular openings are opened on one side of the mounting plate 4, and the two limit plates 8 are respectively slidably sleeved in the corresponding rectangular openings, and the two movable plates 21 are respectively slidably sleeved in the corresponding cavities 18, which can guide the movable plates 21 and the limit plates 8 to make their movement more stable and smooth.

[0029] In the present invention, the top end of the threaded rod 20 extends to the top of the mounting plate 4 and is fixedly connected with a hand wheel 19 to facilitate the rotation of the threaded rod 20 .

[0030] In the utility model, when in use, the driving motor 3 in the lifting assembly drives the rotation of the lifting screw 16. Under the guidance of the guide rail 2, the lifting screw 16 drives the lifting plate 17, the mounting plate 4 and the machine body 9 to rise and fall. When maintenance is performed, the machine body 9 can be lowered to a height where personnel can operate and maintain, without the need for personnel to climb for maintenance, making maintenance more convenient and safe. At the same time, when in use, the machine body 9 can be raised to a corresponding height so as to detect and alarm methane gas. The infrared sensor 15 and the catalytic combustion sensor 12 (MJC4 / 2.8J (MC113)) are used to detect the actual concentration of methane gas. The catalytic combustion sensor 12 is composed of a detection element and a compensation element paired to form two arms of an electric bridge. When encountering combustible gas, the resistance of the detection element increases, and the output voltage of the bridge changes. The voltage variable increases in direct proportion to the increase in gas concentration. The compensation element plays a role in reference and temperature and humidity compensation. When the methane gas concentration exceeds the standard, the alarm 10 emits an alarm warning sound, and the threaded sleeve The threaded connection between 11 and the screw rod 13 is convenient for disassembly and assembly of the equipment box 14, and for inspection and maintenance of the infrared sensor 15 and the catalytic combustion sensor 12. When the two plug plates 7 are inserted into the suspension seat 6, the cross plate 5 is abutted against the top of the suspension seat 6, thereby achieving the purpose of suspending and installing the machine body 9. Compared with the suspension method using a lifting ring and a traction rope, the suspension installation of this article is more stable, making it difficult for the machine body 9 to swing and affect the accuracy of the detection alarm. At the same time, the hand wheel 1 9 rotates the threaded rod 20, the threaded rod 20 drives the two movable plates 21 and the connecting rod 22 to move downward, and the two connecting rods 22 drive the two limit plates 8 to move left and extend out and abut against the top of the cross plate 5, so that the cross plate 5 and the plug plate 7 can be firmly fixed between the suspension seat 6 and the limit plate 8, making the installation more stable. When disassembling and maintenance, the threaded rod 20 is rotated in the opposite direction to make the limit plate 8 move right and retract into the cavity 18, so that the cross plate 5 is not limited. At this time, the body 9, the cross plate 5 and the plug plate 7 can be removed from the suspension seat 6.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A methane gas alarm, characterized in that: The invention comprises a wall surface (1), a mounting plate (4) and a machine body (9); a methane gas detection alarm component is arranged on the machine body (9); a suspension stabilizing mounting group mechanism is arranged between the machine body (9) and the mounting plate (4); a guide rail (2) is fixedly connected to one side of the wall surface (1); a lifting component is arranged between the guide rail (2) and the mounting plate (4); the methane gas detection alarm component comprises an alarm (10) fixedly connected to the top of the machine body (9) and a device box (14) detachably fixedly connected to one side of the machine body (9); an infrared sensor (15) and a catalytic combustion sensor (12) are fixedly arranged on one side of the device box (14) in sequence from top to bottom.

2. A methane gas alarm according to claim 1, characterized in that: A threaded sleeve (11) is fixedly connected to one side of the machine body (9), a screw rod (13) is provided inside the threaded sleeve (11), and the equipment box (14) is fixedly connected to one end of the screw rod (13).

3. A methane gas alarm according to claim 1, characterized in that: The lifting assembly comprises a driving motor (3) fixedly connected to the top of the guide rail (2), and a lifting screw (16) rotatably connected to the top inner wall and the bottom inner wall of the guide rail (2), the output shaft of the driving motor (3) is fixedly connected to the top of the lifting screw (16), the outer thread sleeve of the lifting screw (16) is provided with a lifting plate (17), and the mounting plate (4) is fixedly connected to one side of the lifting plate (17).

4. A methane gas alarm according to claim 3, characterized in that: The lifting plate (17) is slidably sleeved in the guide rail (2).

5. A methane gas alarm according to claim 1, characterized in that: The suspension stable installation group mechanism comprises a suspension component and a reinforcement component, the suspension component comprises two transverse plates (5) fixedly connected to the other side of the body (9) and two suspension seats (6) fixedly connected to one side of the installation plate (4), the bottom of the transverse plate (5) is fixedly connected with an insert plate (7), the two insert plates (7) are respectively movably engaged in the corresponding suspension seats (6), and the two transverse plates (5) are both movably abutted against the top of the suspension seat (6).

6. A methane gas alarm according to claim 5, characterized in that: Two cavities (18) are provided in the mounting plate (4), and the reinforcement component comprises a threaded rod (20) rotatably connected between the two cavities (18); two movable plates (21) are provided on the outer thread sleeve of the threaded rod (20); the bottoms of the two movable plates (21) are rotatably connected to connecting rods (22); the bottom ends of the two connecting rods (22) are rotatably connected to limit plates (8), and the two limit plates (8) are movably abutted against the tops of the corresponding transverse plates (5).

7. A methane gas alarm according to claim 6, characterized in that: Two rectangular openings are provided on one side of the mounting plate (4), two limiting plates (8) are slidably sleeved in the corresponding rectangular openings, and two movable plates (21) are slidably sleeved in the corresponding cavities (18).

8. A methane gas alarm according to claim 6, characterized in that: The top end of the threaded rod (20) extends to the top of the mounting plate (4) and is fixedly connected to a hand wheel (19).

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