Natural gas detection alarm equipment
By installing a mounting base and dustproof net on the outside of the natural gas pipeline, the natural gas detection and alarm device solves the problems of inconvenient installation and dust prevention, achieving convenient installation and dust prevention effect, and improving the service life and detection accuracy of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGHAI CHINA OIL GAS ENG CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-12
AI Technical Summary
Existing natural gas detection and alarm equipment is inconvenient to install and has poor dust protection, which affects the heat dissipation and service life of the equipment.
The device is designed with a mounting base, side groove, threaded rod, fixed base and dustproof net to allow it to be installed outside the natural gas pipeline. The dustproof net prevents dust from entering and is combined with an induced draft fan and methane sensor for detection.
This achieves convenient installation and dustproof effect, avoids dust affecting heat dissipation, extends equipment life and improves detection accuracy.
Smart Images

Figure CN224229768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of natural gas detection technology, specifically a natural gas detection alarm device. Background Technology
[0002] Natural gas is a gaseous fossil fuel mainly composed of methane. It is primarily found in oil and gas fields, with smaller amounts also found in coal seams. Like crude oil, natural gas is buried in closed geological structures underground. Some natural gas is stored in the same stratum as crude oil, while some exists separately. Natural gas stored in the same stratum as crude oil is extracted along with the crude oil. Natural gas leak detection alarms are very important gas safety devices. These instruments use gas sensors to detect low concentrations of combustible gases in the surrounding environment. When the concentration of combustible gases exceeds the value set in the controller or control circuit, the controller will issue an alarm signal, which in turn will issue a warning signal.
[0003] Currently, most existing natural gas detection and alarm devices are installed inside gas meter cabinets in kitchens. They are primarily used to detect leaks at gas pipeline joints. These devices are typically installed by drilling holes in the cabinet or wall and fixing them with screws. This installation method damages the wall or cabinet structure and is inconvenient for both installation and disassembly, thus presenting certain shortcomings. Furthermore, existing natural gas detection and alarm devices are equipped with exhaust fans to draw air from around the gas pipeline joints into the device for detection. However, dust inevitably exists in the air, which can enter the device and adhere to electronic components, affecting heat dissipation and lifespan, and even causing short circuits that impair detection accuracy. Existing natural gas detection and alarm devices also have poor dustproof performance, further compromising their effectiveness. Therefore, we propose a new type of natural gas detection and alarm device. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a natural gas detection and alarm device, which solves the problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A natural gas detection alarm device includes a detection device housing and a mounting base. A side groove is formed on one side of the mounting base. An upper fixing base is fixedly installed at the top of the side groove. A threaded rod is threaded onto the bottom of the mounting base. A lower fixing base is provided at one end of the threaded rod. Arc-shaped grooves are formed at the bottom of the upper fixing base and the top of the lower fixing base. A knob is fixedly installed at the other end of the threaded rod. Two guide rods are fixedly installed at the bottom of the lower fixing base. The guide rods are slidably connected to the mounting base. A side fixing plate is fixedly installed on one side of the top of the mounting base. Two L-shaped limiting plates are fixedly installed on both sides of the side fixing plate. The detection device housing cooperates with the L-shaped limiting plates.
[0006] Preferably, a dustproof net is provided on the outer side of the L-shaped limiting plate, and a connecting top plate is fixedly installed on the top of the detection equipment housing. The connecting top plate cooperates with the dustproof net, and pull plates are fixedly installed on both sides of the top of the connecting top plate.
[0007] Preferably, an air inlet is provided inside one side of the housing of the detection device, and an exhaust fan is provided inside the housing of the detection device and on one side of the air inlet. A methane sensor is provided inside the housing of the detection device, and the exhaust fan cooperates with the methane sensor. An air outlet is provided inside the other side of the housing of the detection device, and the exhaust fan cooperates with the air outlet. An audible and visual alarm is provided on the top of the connecting top plate.
[0008] Preferably, a lithium battery is installed inside the bottom of the detection device housing, and a heat dissipation grille is provided on one side of the detection device housing.
[0009] Preferably, both the air inlet and the air outlet are equipped with air filters.
[0010] Preferably, the bottom of the mounting base has holes that mate with the threaded rod and the guide rod.
[0011] This utility model provides a natural gas detection and alarm device, which has the following beneficial effects:
[0012] 1. This natural gas detection and alarm device, with its mounting base, side groove, upper fixed base, threaded rod, lower fixed base, arc groove, knob, and guide rod, can be directly installed on the outside of the natural gas pipeline. The installation position can be adjusted at will, making installation convenient and quick. It can be installed without damaging the wall or cabinet structure, making it even more convenient and quick to use.
[0013] 2. This natural gas detection and alarm device, through the setting of side fixing plates, L-shaped limit plates, dustproof nets, connecting top plates, air inlets and outlets, can effectively protect the housing of the detection device and prevent dust in the outside air from entering the housing of the detection device and affecting its heat dissipation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a side view of the present invention;
[0016] Figure 3 This is a schematic diagram of the testing equipment of this utility model;
[0017] Figure 4 This is a cross-sectional view of the housing of the testing equipment of this utility model;
[0018] Figure 5 This is a partial top view of the present invention.
[0019] In the diagram: 1. Detection equipment housing; 2. Mounting base; 3. Side groove; 4. Upper fixing base; 5. Threaded rod; 6. Lower fixing base; 7. Arc groove; 8. Knob; 9. Guide rod; 10. Side fixing plate; 11. L-shaped limit plate; 12. Dustproof net; 13. Connecting top plate; 14. Pull plate; 15. Air inlet; 16. Exhaust fan; 17. Methane sensor; 18. Air outlet; 19. Audible and visual alarm; 20. Lithium battery; 21. Heat dissipation grille. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Please see Figures 1 to 5This utility model provides a technical solution: a natural gas detection alarm device, including a detection device housing 1 and a mounting base 2. A side groove 3 is provided on one side of the mounting base 2. An upper fixed base 4 is fixedly installed at the top inside the side groove 3. A threaded rod 5 is threaded on the bottom of the mounting base 2. A lower fixed base 6 is provided at one end of the threaded rod 5. One end of the threaded rod 5 is used to drive the upper and lower fixed bases 6 to move, and the lower fixed base 6 and the threaded rod 5 can rotate relative to each other. An arc-shaped groove 7 is provided at the bottom of the fixed base 4 and the top of the lower fixed base 6. A knob 8 is fixedly installed at the other end of the threaded rod 5. Two guide rods 9 are fixedly installed at the bottom of the lower fixed base 6. The guide rods 9 are slidably connected to the mounting base 2. Holes that cooperate with the threaded rod 5 and the guide rods 9 are respectively provided inside the bottom of the mounting base 2. A side fixed plate 10 is fixedly installed on one side of the top of the mounting base 2. Two L-shaped limiting plates 11 are fixedly installed on both sides of the side fixed plate 10. The detection device housing 1 cooperates with the L-shaped limiting plates 11.
[0022] A dustproof net 12 is provided on the outer side of the L-shaped limiting plate 11. A connecting top plate 13 is fixedly installed on the top of the testing equipment housing 1. The connecting top plate 13 cooperates with the dustproof net 12. Pull plates 14 are fixedly installed on both sides of the top of the connecting top plate 13. The function of the pull plates 14 is to facilitate the removal of the testing equipment housing 1 from the inside of the L-shaped limiting plate 11.
[0023] An air inlet 15 is provided inside one side of the housing 1 of the testing equipment. An exhaust fan 16 is provided inside the housing 1 of the testing equipment and located on one side of the air inlet 15. A methane sensor 17 is provided inside the housing 1 of the testing equipment. The exhaust fan 16 works in conjunction with the methane sensor 17. An air outlet 18 is provided inside the housing 1 of the testing equipment on the other side. The exhaust fan 16 works in conjunction with the air outlet 18. Air filters are provided inside both the air inlet 15 and the air outlet 18. An audible and visual alarm 19 is provided on the top of the top plate 13. A lithium battery 20 is provided inside the bottom of the housing 1 of the testing equipment. A heat dissipation grille 21 is provided on one side of the housing 1 of the testing equipment. A controller and a processor are also provided inside the housing 1 of the testing equipment.
[0024] The methane sensor 17, controller, processor, and audible and visual alarm 19 inside the housing 1 of the detection equipment are all existing technologies. The brand and model of the methane sensor 17 is Sifang Optoelectronics JW-05, and the brand and model of the audible and visual alarm 19 is Guangda GD-EB8046. When the methane sensor 17 detects that the methane content in the air exceeds the threshold, it will activate the audible and visual alarm 19 after processing by the controller and processor. The lithium battery 20 can be removed from the bottom of the housing 1 of the detection equipment for replacement. The heat dissipation grille 21 is used for heat dissipation of the internal components of the housing 1 of the detection equipment.
[0025] In summary, when using this natural gas detection and alarm device, simply place the mounting base 2 on the outside of the natural gas pipeline through the side groove 3. After positioning it with the pipeline through the arc groove 7 at the bottom of the upper fixing base 4, rotate the knob 8 to drive the threaded rod 5 to rotate. This will cause the threaded rod 5 to move the lower fixing base 6 through the thread. The lower fixing base 6 will then fix the mounting base 2 from below the natural gas pipeline. Finally, place the detection device housing 1 from the inside of the L-shaped limiting plate 11 to complete the installation. During detection, the exhaust fan 16 inside the detection device housing 1 will be turned on to introduce external air into the detection device housing 1 through the air inlet 15 and blow it onto the methane sensor 17. The methane content in the air can then be detected by the methane sensor 17. When the methane content in the air increases, the controller and processor will receive the signal and activate the audible and visual alarm 19 to trigger an alarm.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A natural gas detection and alarm device, comprising a detection device housing (1) and a mounting base (2), characterized in that: A side groove (3) is provided on one side of the mounting base (2). An upper fixing seat (4) is fixedly installed at the top inside the side groove (3). A threaded rod (5) is installed on the internal thread at the bottom of the mounting base (2). A lower fixing seat (6) is provided at one end of the threaded rod (5). An arc groove (7) is provided at the bottom of the upper fixing seat (4) and the top of the lower fixing seat (6). A knob (8) is fixedly installed at the other end of the threaded rod (5). Two guide rods (9) are fixedly installed at the bottom of the lower fixing seat (6). The guide rods (9) are slidably connected to the mounting base (2). A side fixing plate (10) is fixedly installed on one side of the top of the mounting base (2). Two L-shaped limiting plates (11) are fixedly installed on both sides of the side fixing plate (10). The detection equipment housing (1) cooperates with the L-shaped limiting plates (11).
2. The natural gas detection and alarm device according to claim 1, characterized in that: A dustproof net (12) is provided on the outside of the L-shaped limiting plate (11), and a connecting top plate (13) is fixedly installed on the top of the detection equipment housing (1). The connecting top plate (13) cooperates with the dustproof net (12), and pull plates (14) are fixedly installed on both sides of the top of the connecting top plate (13).
3. A natural gas detection and alarm device according to claim 2, characterized in that: An air inlet (15) is provided inside one side of the housing (1) of the detection equipment. An exhaust fan (16) is provided inside the housing (1) and on one side of the air inlet (15). A methane sensor (17) is provided inside the housing (1). The exhaust fan (16) cooperates with the methane sensor (17). An air outlet (18) is provided inside the other side of the housing (1). The exhaust fan (16) cooperates with the air outlet (18). An audible and visual alarm (19) is provided on the top of the connecting top plate (13).
4. A natural gas detection and alarm device according to claim 1, characterized in that: A lithium battery (20) is installed inside the bottom of the housing (1) of the detection device, and a heat dissipation grille (21) is installed on one side of the housing (1).
5. A natural gas detection and alarm device according to claim 3, characterized in that: Both the air inlet (15) and the air outlet (18) are equipped with air filters.
6. A natural gas detection and alarm device according to claim 1, characterized in that: The bottom of the mounting base (2) has holes that mate with the threaded rod (5) and the guide rod (9).