Gas concentration alarm equipment with clamping structure

Abstract

The utility model discloses a gas concentration alarm device with a clamping structure, which comprises a shell, a gas inlet and a methane gas sensor, one side of the shell is provided with a fixed frame, one end of a spring close to the center of the fixed frame is connected with a first clamping block, one side of the first clamping block far away from the spring is provided with a second clamping block, and the first clamping block is provided with a gas inlet. The first clamping block corresponds to the second clamping block, the inner wall of the side, away from the first clamping block, of the fixing frame is connected with a threaded sleeve through a bearing, an adjusting knob is arranged on one side of the fixing frame, the output end of the adjusting knob is connected with the threaded sleeve, and the threaded sleeve is in threaded connection with a screw. The end, away from the threaded sleeve, of the threaded rod is connected with the second clamping block. The first clamping block is matched with the second clamping block to clamp and fix the natural gas pipeline so as to facilitate installation of alarm equipment, and the distance between the first clamping block and the second clamping block can be adjusted by twisting an adjusting knob so as to perform installation or disassembly.

Description

Technical Field

[0001] The utility model relates to the technical field of gas concentration alarm, in particular to a gas concentration alarm device with a clamping structure. Background Art

[0002] With the improvement of people's living standards, natural gas has gradually become the main energy source in people's daily life. As a flammable and explosive gas, natural gas has gradually received people's high attention, and various gas alarms have gradually appeared in people's lives. The application number CN202111396636.9 is retrieved, which is a natural gas alarm device and its control method. The invention arranges a methane gas concentration detection module and a control module in the box body, which not only realizes the use of NDIR detection technology to measure the indoor methane gas concentration, but also realizes the purpose of indoor alarm and remote alarm.

[0003] Similar to the above-mentioned natural gas alarm device and its control method: Although by arranging a methane gas concentration detection module and a control module in the box body, it not only realizes the use of NDIR detection technology to measure the indoor methane gas concentration, but also realizes the purpose of indoor alarm and remote alarm. However, at present, the natural gas alarm device is often installed on the wall and cannot be installed on the gas pipeline or the natural gas pipeline at a location closer to the leakage. At the same time, tools are needed to install it during the installation process.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a gas concentration alarm device with a clamping structure is proposed to achieve a more practical purpose. Utility Model Content

[0005] The purpose of the utility model is to provide a gas concentration alarm device with a clamping structure to solve the problem that the above-mentioned natural gas alarm device and its control method proposed in the above-mentioned background technology are often installed on the wall at this stage, and cannot be installed in the gas pipeline or the natural gas pipeline. The location closer to the location prone to leakage, and the installation process requires the use of tools to install.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas concentration alarm device with a clamping structure, comprising a shell, an air inlet and a methane gas sensor, the bottom end of the shell is arranged with an air inlet, an end of the shell away from the air inlet is provided with an exhaust port, the methane gas sensor is arranged at the center of the shell, and a fan is connected to the inner wall of the shell on one side close to the exhaust port.

[0007] Furthermore, a buzzer is provided on an outer wall of one side of the exhaust port, an LED warning light is provided on a side of the exhaust port away from the buzzer, and a controller is provided on one side of the fan, and the controller is connected to the buzzer and the LED warning light through wires.

[0008] Furthermore, a fixing frame is provided on one side of the shell, a spring is arranged and connected on one side of the interior of the fixing frame, and a clamping block No. 1 is connected to one end of the spring close to the center of the fixing frame.

[0009] Furthermore, a No. 2 clamp block is provided on the side of the No. 1 clamp block away from the spring, and the No. 1 clamp block corresponds to the No. 2 clamp block. The inner wall of the fixed frame on the side away from the No. 1 clamp block is connected with a threaded sleeve through a bearing. An adjusting knob is provided on one side of the fixed frame, and the output end of the adjusting knob is connected to the threaded sleeve.

[0010] Furthermore, the threaded sleeve is threadedly connected with a screw, and one end of the screw away from the threaded sleeve is connected to the second clamping block, a limiting groove is provided on one side of the fixed frame, and a limiting rod is provided on the four ends of the second clamping block away from the first clamping block, and one end of the limiting rod away from the second clamping block passes through the limiting groove, and a stop washer is provided on the rod body of the screw.

[0011] Furthermore, fixing protrusions are arranged on opposite sides of the No. 1 clamp block and the No. 2 clamp block, and the fixing protrusions are made of rubber. A display module is arranged on the side of the shell away from the fixing frame, and the display module is connected to the methane gas sensor through wires.

[0012] Compared with the prior art, the utility model has the following beneficial effects: a gas concentration alarm device with a clamping structure, which can clamp and fix the natural gas pipeline by using a No. 1 clamping block in combination with a No. 2 clamping block, thereby facilitating the installation of the alarm device, and can adjust the spacing between the No. 1 clamping block and the No. 2 clamping block by twisting the adjusting knob to install or disassemble the device, and the specific contents are as follows:

[0013] A fixing frame is provided on one side of the shell, and a spring is arranged and connected on one side of the interior of the fixing frame. The spring shrinks and rebounds under pressure, and the rebound force is always maintained during the clamping process of the natural gas pipeline to clamp the pipeline. A No. 1 clamping block is connected to one end of the spring close to the center of the fixing frame, and the No. 1 clamping block plays a clamping role. A No. 2 clamping block is provided on the side of the No. 1 clamping block away from the spring. The No. 1 clamping block corresponds to the No. 2 clamping block. The No. 1 clamping block cooperates with the No. 2 clamping block to clamp and fix the natural gas pipeline, thereby facilitating the installation of the alarm equipment. A threaded sleeve is connected to the inner wall of the side of the fixing frame away from the No. 1 clamping block through a bearing. One end of the fixing frame is connected to a No. 1 clamping block. An adjusting knob is arranged on the side, and the output end of the adjusting knob is connected to the threaded sleeve. The threaded sleeve can be driven to rotate by twisting the adjusting knob. The threaded sleeve is threadedly connected with a screw rod. The rotation of the threaded sleeve drives the screw rod to translate. The helix angle of the threaded sleeve and the screw rod is small and self-locking. The end of the screw rod away from the threaded sleeve is connected to the No. 2 clamp block. The movement of the screw rod drives the No. 2 clamp block to translate, so that the No. 2 clamp block cooperates with the No. 1 clamp block to clamp and fix the natural gas pipeline, which is convenient for the installation of the alarm equipment. When disassembly is required, twist the adjusting knob in the opposite direction to separate the No. 2 clamp block from the pipeline to complete the disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural diagram of a gas concentration alarm device with a clamping structure according to the utility model;

[0015] Figure 2 This is a schematic diagram of a gas concentration alarm device with a clamping structure viewed from above according to the utility model;

[0016] Figure 3 This is a schematic diagram of the shell structure of a gas concentration alarm device with a clamping structure according to the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the screw structure of a gas concentration alarm device with a clamping structure.

[0018] In the figure: 1. Shell; 2. Air inlet; 3. Exhaust port; 4. Methane gas sensor; 5. Fan; 6. Buzzer; 7. LED warning light; 8. Controller; 9. Fixing frame; 10. Spring; 11. Clamp No. 1; 12. Clamp No. 2; 13. Threaded sleeve; 14. Adjustment knob; 15. Screw; 16. Limiting groove; 17. Limiting rod; 18. Fixing protrusion; 19. Display module. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a gas concentration alarm device with a clamping structure, comprising a shell 1, an air inlet 2 and a methane gas sensor 4. The bottom end of the shell 1 is arranged with an air inlet 2, and air can enter the shell 1 from the air inlet 2. The shell 1 is provided with an exhaust port 3 at one end away from the air inlet 2, and the detected air can be discharged from the exhaust port 3. The methane gas sensor 3 is arranged at the center of the shell 1. The model of the methane gas sensor 3 is SJH-5B. The methane gas sensor 3 can detect the natural gas concentration in the air in real time. The inner wall of the shell 1 on one side close to the exhaust port 3 is connected with a fan 5. Starting the fan 5 can accelerate the air circulation in the shell 1, thereby realizing the capture of a large area of ​​air for monitoring.

[0021] A buzzer 6 is provided on the outer wall of one side of the exhaust port 3. The buzzer 6 is an alarm device. An LED warning light 7 is provided on the side of the exhaust port 3 away from the buzzer 6. The LED warning light 7 can emit an alarm light. A controller 8 is provided on one side of the fan 5. The fan 5 adopts a bt35-11 explosion-proof axial flow fan. The controller 8 is connected to the buzzer 6 and the LED warning light 7 through wires. When the methane gas sensor 3 detects that the methane concentration in the air is too high, it transmits a signal to the controller 8. The controller 8 controls the buzzer 6 and the LED warning light 7 to alarm and remind the staff to deal with it in time. The buzzer 6 and the LED warning light 7 respectively adopt explosion-proof buzzer and explosion-proof LED warning light to avoid casualties caused by natural gas leakage.

[0022] A fixing frame 9 is provided on one side of the shell 1, and the fixing frame 9 plays a fixing role. A spring 10 is arranged and connected on one side of the interior of the fixing frame 9. The spring contracts and rebounds under pressure, and the rebound force is always maintained during the clamping process of the natural gas pipeline to clamp the pipeline. One end of the spring 10 close to the center of the fixing frame 9 is connected to a clamping block 11, and the clamping block 11 plays a clamping role.

[0023] A No. 2 clamping block 12 is provided on the side of the No. 1 clamping block 11 away from the spring 10. The No. 1 clamping block 11 corresponds to the No. 2 clamping block 12. The No. 1 clamping block 11 cooperates with the No. 2 clamping block 12 to clamp and fix the natural gas pipeline, thereby facilitating the installation of the alarm device. The inner wall of the side of the fixed frame 9 away from the No. 1 clamping block 11 is connected with a threaded sleeve 13 through a bearing. An adjusting knob 14 is provided on one side of the fixed frame 9. The output end of the adjusting knob 14 is connected to the threaded sleeve 13. The threaded sleeve 13 can be driven to rotate by twisting the adjusting knob 14.

[0024] The threaded sleeve 13 is threadedly connected with a screw 15, and the rotation of the threaded sleeve 13 drives the screw 15 to translate. The helical angle of the threaded sleeve 13 and the screw 15 is small and self-locking. The end of the screw 15 away from the threaded sleeve 11 is connected to the second clamping block 12. The movement of the screw 15 drives the second clamping block 12 to translate, so that the second clamping block 12 cooperates with the first clamping block 1 to clamp and fix the natural gas pipeline, which is convenient for the installation of the alarm equipment. When disassembly is required, twist the adjustment in the opposite direction. The knob allows the No. 2 clamp 12 to separate from the pipe to complete the disassembly. A limiting groove 16 is provided on one side of the fixed frame 9, and the limiting groove 16 plays a limiting role. A limiting rod 17 is provided on the four ends of the side of the No. 2 clamp 12 away from the No. 1 clamp 11. The end of the limiting rod 17 away from the No. 2 clamp 12 passes through the limiting groove 16. The limiting rod 17 and the limiting groove 16 play a limiting role to prevent the No. 2 clamp 12 from rotating with the threaded sleeve 13, and a stop washer is provided on the rod body of the screw rod 15.

[0025] Fixed protrusions 18 are arranged on the opposite sides of the No. 1 clamp block 11 and the No. 2 clamp block 12. The fixed protrusions 18 are made of rubber. The fixed protrusions 18 increase the friction between the No. 1 clamp block 11 and the No. 2 clamp block 12, so that the device is not easy to fall off. A display module 19 is arranged on the side of the shell 1 away from the fixed frame 9. The display module 19 is connected to the methane gas sensor 4 through an electric wire. The display module 19 transmits the natural gas concentration in the air through the methane gas sensor 4, which is convenient for personnel to observe.

[0026] Working principle: When using a gas concentration alarm device with a clamping structure, put the fixed frame on the appropriate position of the natural gas pipeline, clamp the natural gas pipeline through the middle clamping of the No. 1 clamping block 11 and the No. 2 clamping block 12, and twist the adjusting knob 14 to drive the threaded sleeve 13 to rotate, and the rotation of the threaded sleeve 13 drives the screw 15 to translate, and the movement of the screw 15 drives the No. 2 clamping block 12 to translate, so that the No. 2 clamping block 12 cooperates with the No. 1 clamping block 1 to clamp and fix the natural gas pipeline, which is convenient for the installation of the alarm device. When disassembly is required, twist the adjusting knob 14 in the opposite direction to separate the No. 2 clamping block 12 from the pipeline to complete the disassembly. The spring is compressed and shrinks and rebounds. In the process of clamping the natural gas pipeline, the rebound force is always maintained to clamp the pipeline. Starting the fan 5 can accelerate the air circulation in the shell 1, so as to capture a large area of ​​air for monitoring. The methane gas sensor 3 can detect the natural gas concentration in the air in real time. When the methane gas sensor 3 detects that the methane concentration in the air is too high, it transmits a signal to the controller 8. The controller 8 controls the buzzer 6 and the LED warning light 7 to alarm and remind the staff to deal with it in time to avoid casualties caused by natural gas leakage. The display module 19 transmits the natural gas concentration in the air through the methane gas sensor 4, which is convenient for observing the real-time concentration.

Claims

1. A gas concentration alarm device with a clamping structure, comprising a housing (1), an air inlet (2) and a methane gas sensor (4), characterized in that: An air inlet (2) is arranged at the bottom end of the shell (1), an exhaust port (3) is arranged at one end of the shell (1) away from the air inlet (2), the methane gas sensor is arranged at the center of the shell (1), and a fan (5) is connected to the inner wall of one side of the shell (1) close to the exhaust port (3).

2. The gas concentration alarm device with a clamping structure according to claim 1, characterized in that: A buzzer (6) is provided on an outer wall of one side of the exhaust port (3), an LED warning light (7) is provided on a side of the exhaust port (3) away from the buzzer (6), and a controller (8) is provided on one side of the fan (5), and the controller (8) is connected to the buzzer (6) and the LED warning light (7) via electric wires.

3. The gas concentration alarm device with a clamping structure according to claim 1, characterized in that: A fixing frame (9) is provided on one side of the housing (1), a spring (10) is arranged and connected on one side of the interior of the fixing frame (9), and a first clamping block (11) is connected to one end of the spring (10) close to the center of the fixing frame (9).

4. The gas concentration alarm device with a clamping structure according to claim 3 is characterized in that: A second clamp block (12) is provided on the side of the first clamp block (11) away from the spring (10), and the first clamp block (11) corresponds to the second clamp block (12). The inner wall of the side of the fixed frame (9) away from the first clamp block is connected to a threaded sleeve (13) via a bearing. An adjusting knob (14) is provided on one side of the fixed frame (9), and an output end of the adjusting knob (14) is connected to the threaded sleeve (13).

5. The gas concentration alarm device with a clamping structure according to claim 4, characterized in that: One end of the threaded sleeve (13) away from the adjusting knob (14) is threadedly connected with a screw rod (15), and one end of the screw rod (15) away from the threaded sleeve (13) is connected to the second clamping block (12). A limiting groove (16) is provided on one side of the fixing frame (9), and a limiting rod (17) is provided on one end of the second clamping block (12) away from the first clamping block (11). One end of the limiting rod (17) away from the second clamping block (12) passes through the limiting groove (16), and a stop washer is provided on the rod body of the screw rod (15).

6. The gas concentration alarm device with a clamping structure according to claim 4, characterized in that: The first clamp block (11) and the second clamp block (12) are both arranged with fixing protrusions (18) on opposite sides thereof, and the fixing protrusions (18) are made of rubber. A display module (19) is arranged on a side of the housing (1) away from the fixing frame (9), and the display module (19) is connected to the methane gas sensor (4) via an electric wire.

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