Automatic dust removal structure of holder type anti-explosion natural gas leakage laser detector

Abstract

The utility model provides an automatic dust removal structure of a holder type anti-explosion natural gas leakage laser detector, which belongs to the technical field of natural gas leakage detection devices and comprises a base. The first supporting blocks are fixedly connected to the upper end of the base, and the upper end of the base is in threaded connection with a plurality of bolts; the outer shell is fixedly connected to the inner surface of the base, and the inner surface of the outer shell is slidably connected with an inner shell; the mounting seat is fixedly connected to the outer surface of the inner shell, and a sealing seat is arranged on the inner surface of the mounting seat; the problem that a laser detector is prone to being affected by pollutants such as dust and oil dirt is solved, meanwhile, work such as automatic cleaning and dust removal can be carried out, and therefore the working efficiency and detection precision of natural gas leakage detection are improved, the situations such as misinformation are avoided, and waste of time and manpower resources is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of natural gas leak detection devices, specifically relating to an automatic dust removal structure for a pan-tilt-zoom explosion-proof laser detector for natural gas leaks. Background Technology

[0002] Natural gas refers to all gases that exist naturally in the world, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere. Its main use is as fuel; it can also be used to manufacture carbon black, chemicals, and liquefied petroleum gas (LPG). Propane and butane, produced from natural gas, are important raw materials for modern industry. They are primarily composed of a mixture of gaseous low-molecular-weight hydrocarbons and non-hydrocarbon gases.

[0003] In industrial environments, especially in locations with a risk of natural gas leaks, laser detectors are required to perform regular leak checks to prevent accidents such as natural gas leaks and explosions. However, existing pan-tilt-zoom explosion-proof laser detectors are susceptible to contaminants such as dust and oil during prolonged use. They also cannot perform automatic cleaning and dust removal, which reduces detection accuracy and may even cause false alarms, resulting in a waste of time and human resources. Utility Model Content

[0004] The purpose of this invention is to provide an automatic dust removal structure for a pan-tilt-zoom explosion-proof natural gas leak laser detector. This aims to solve the problem that existing laser detectors are easily affected by contaminants such as dust and oil, and cannot perform automatic cleaning and dust removal, thereby reducing detection accuracy or even causing false alarms, resulting in a waste of time and human resources.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic dust removal structure for a pan-tilt-zoom explosion-proof natural gas leak laser detector, characterized in that it comprises:

[0007] Base;

[0008] Multiple first support blocks are fixedly connected to the upper end of the base, and multiple bolts are threadedly connected to the upper end of the base;

[0009] The outer shell is fixedly connected to the inner surface of the base, and the inner shell is slidably connected to the inner surface of the outer shell;

[0010] Mounting base, the mounting base is fixedly connected to the outer surface of the inner shell, and the inner surface of the mounting base is provided with a sealing seat;

[0011] A telescopic rod is provided on the upper side of the sealing seat, and a laser detector body is fixedly connected to the upper end of the telescopic rod;

[0012] An alarm, wherein the alarm is disposed on the upper side of the laser detector body, and a control device is disposed on the inner surface of the alarm; and

[0013] An automatic dust removal mechanism is provided on the upper side of the mounting base to wipe and remove dust from the surface of the laser detector body.

[0014] As a preferred embodiment of this utility model, the automatic dust removal mechanism includes:

[0015] A turntable is rotatably connected to the inner surface of the mounting base. A second motor is fixedly connected to the inner surface of the inner shell. The output end of the second motor movably passes through the upper end of the turntable and the mounting base. A drive gear is fixedly connected to the output end of the second motor.

[0016] An internal gear ring is fixedly connected to the inner surface of the mounting base. A driven gear is rotatably connected to the upper end of the turntable. The internal gear ring, the driving gear, and multiple driven gears are all in a meshing state.

[0017] A brush assembly is disposed within a mounting base to remove dust from the surface of the laser detector body.

[0018] In a preferred embodiment of this utility model, a fixing block is fixedly connected to the upper end of the drive gear, and a connecting seat is fixedly connected to the inner surface of the fixing block. The inner surface of the connecting seat and the outer surface of the telescopic rod are both fixedly connected.

[0019] As a preferred embodiment of this utility model, the brush assembly includes:

[0020] Multiple limiting circular blocks are fixedly connected to the upper ends of multiple driven gears. Each of the multiple limiting circular blocks has a fixing rod fixedly connected to its inner surface, and each of the multiple fixing rods has a dust removal soft brush fixedly connected to its upper end.

[0021] As a preferred embodiment of this utility model, it further includes an adjustment mechanism, the adjustment mechanism comprising:

[0022] The first motor is fixedly connected to the lower inner wall of the housing. A limit seat is provided on the inner surface of the housing. A nut is fixedly connected to the upper end of the limit seat. The output end of the first motor movably passes through the upper end of the limit seat.

[0023] A lead screw, the lower end of which is fixedly connected to the output end of the first motor, and a nut is threaded onto the circumferential surface of the lead screw, the upper end of which is fixedly connected to the lower end of the inner shell;

[0024] A limiting component is disposed within the housing to limit the sliding of the nut.

[0025] As a preferred embodiment of this utility model, the limiting component includes:

[0026] Multiple limiting rods are fixedly connected to the upper end of the limiting seat. Multiple limiting sliders are slidably connected to the circumferential surfaces of the multiple limiting rods. The outer surfaces of the multiple limiting sliders and the outer surfaces of the nuts are fixedly connected.

[0027] In a preferred embodiment of this utility model, a support base is fixedly connected to the upper end of the sealing seat, and a plurality of second support blocks are fixedly connected to the upper end of the support base.

[0028] In a preferred embodiment of this utility model, the upper end of the sealing seat is fixedly connected to a plurality of connecting rods, and the upper ends of the plurality of connecting rods are fixedly connected to the upper end of the alarm.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] 1. In this solution, when cleaning and dusting the surface of the laser detector body, the telescopic rod is first retracted to allow the laser detector body to slide downwards. Then, the second motor is started to drive the drive gear to rotate. Since the drive gear meshes with the three driven gears, the three driven gears rotate under the action of force. The internal gear ring meshes with the three driven gears, thereby driving the three driven gears to rotate inside the mounting base. The rotating three driven gears drive three dust removal brushes to clean the surface of the laser detector body. This solves the problem that the laser detector is easily affected by dust, oil, and other contaminants. At the same time, it can perform automatic cleaning and dust removal, thereby improving the efficiency and accuracy of natural gas leak detection, avoiding false alarms, and reducing the waste of time and human resources.

[0031] 2. In this solution, the output end of the first motor and the lead screw are fixed together. When the first motor is started, it drives the lead screw to rotate, thereby causing the threaded nut and the inner shell to slide up and down, thus driving the laser detector body installed on the upper side to adjust its height. Attached Figure Description

[0032] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0033] Figure 1 This is a perspective view of the present utility model;

[0034] Figure 2 This is a cross-sectional view of the present invention;

[0035] Figure 3 This is the first exploded view of this utility model;

[0036] Figure 4 This is the second exploded view of this utility model.

[0037] In the diagram: 1. Base; 2. Bolt; 3. First support block; 4. Outer shell; 5. Inner shell; 6. Mounting seat; 7. Sealing seat; 8. Turntable; 9. Support seat; 10. Second support block; 11. Connecting rod; 12. Alarm; 13. Limiting seat; 14. First motor; 15. Lead screw; 16. Limiting rod; 17. Nut; 18. Limiting slider; 19. Second motor; 20. Control device; 21. Fixing block; 22. Connecting seat; 23. Telescopic rod; 24. Laser detector body; 25. Limiting round block; 26. Fixing rod; 27. Dust removal soft brush; 28. Internal gear ring; 29. ​​Driving gear; 30. Driven gear. Detailed Implementation

[0038] 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.

[0039] Example 1

[0040] Please see Figure 1-4 The present invention provides the following technical solution:

[0041] An automatic dust removal structure for a pan-tilt-zoom explosion-proof natural gas leak laser detector includes:

[0042] Base 1;

[0043] Multiple first support blocks 3 are fixedly connected to the upper end of the base 1, and multiple bolts 2 are threadedly connected to the upper end of the base 1.

[0044] The outer shell 4 is fixedly connected to the inner surface of the base 1, and the inner shell 5 is slidably connected to the inner surface of the outer shell 4.

[0045] Mounting base 6 is fixedly connected to the outer surface of the inner shell 5, and a sealing seat 7 is provided on the inner surface of the mounting base 6;

[0046] Telescopic rod 23 is located on the upper side of sealing seat 7, and the upper end of telescopic rod 23 is fixedly connected to laser detector body 24;

[0047] Alarm 12 is located on the upper side of the laser detector body 24, and a control device 20 is provided on the inner surface of the alarm 12; and

[0048] An automatic dust removal mechanism is installed on the upper side of the mounting base 6 to wipe and remove dust from the surface of the laser detector body 24.

[0049] In a specific embodiment of this utility model, the base 1 serves as the fundamental support for the entire device, ensuring stable installation and operation in various environments. Multiple first support blocks 3 are fixed to the upper end of the base 1, providing stable support points for the outer shell 4. Multiple bolts 2 securely connect the base 1, ensuring the outer shell 4 will not loosen or shift, thus improving structural safety. The fixed outer shell 4 protects the internal components from external environmental influences such as dust and moisture. Simultaneously, the inner shell 5 slides within the outer shell 4, allowing it to move up and down within a certain range to accommodate different height adjustment needs. Both the inner shell 5 and the outer shell 4 are made of explosion-proof and flame-retardant materials that meet industrial safety standards, ensuring the safety of the equipment in flammable and explosive environments. Mounting base 6 is fixed to the surface of inner shell 5, providing a mounting platform for the automatic dust removal mechanism and other components on the upper side. Meanwhile, sealing base 7 is installed inside mounting base 6, sealing the internal space of mounting base 6 to prevent dust and other impurities from entering. The alarm 12 facilitates the installation and fixing of control device 20, and is electrically connected to control device 20. The laser detector body 24 is also electrically connected to control device 20. When laser detector body 24 detects a natural gas leak in the area, it transmits a signal to control device 20. Simultaneously, control device 20 sends a control signal to alarm 12 to sound an alarm. Control device 20 can also be connected to the main natural gas valve. A signal connection is established so that when the alarm 12 sounds, the main natural gas valve is simultaneously closed, reducing natural gas leakage and preventing natural gas explosions. The turntable 8 houses three driven gears 30, facilitating their rotation within the mounting base 6. This rotation drives the brush assembly to clean the surface of the laser detector body 24. The second motor 19 is fixed inside the inner shell 5, with its output shaft extending through the upper end of the mounting base 6. The drive gear 29 is fixed to the output end of the second motor 19. When the second motor 19 is started, it drives the drive gear 29 to rotate. Because the drive gear 29 meshes with the three driven gears 30, the force drives the three driven gears 30... The brush assembly moves by rotating at 0 degrees. It is fixed inside the mounting base 6 by an internal gear ring 28, which meshes with three driven gears 30, limiting and transmitting power to them. This allows the three driven gears 30 to rotate inside the mounting base 6. Multiple limiting blocks 25 are fixed to the upper ends of the three driven gears 30, providing a mounting base for the three fixing rods 26. The three fixing rods 26 also install and support the three dust-removing soft brushes 27. Based on the laser detector body 24 detecting natural gas leaks, it maintains high sensitivity and accuracy. When cleaning and dusting the surface of the laser detector body 24, the length of the telescopic rod 23 can be controlled to retract, allowing the laser detector body 24 to slide downwards.The rotating three driven gears 30 drive three dust-removing soft brushes 27 to clean the surface of the laser detector body 24, solving the problem of laser detectors being easily affected by dust, oil, and other contaminants. This automatic cleaning and dust removal improves the efficiency and accuracy of natural gas leak detection, avoids false alarms, and reduces waste of time and manpower. It should be noted that the specific model of the alarm 12, second motor 19, control device 20, telescopic rod 23, and laser detector body 24 used is to be selected by those skilled in the art. Furthermore, the alarm 12, second motor 19, control device 20, telescopic rod 23, and laser detector body 24 mentioned above are all existing technologies and will not be elaborated upon in this solution.

[0050] Please refer to the details. Figure 4 The automatic dust removal mechanism includes:

[0051] Turntable 8 is rotatably connected to the inner surface of mounting base 6. A second motor 19 is fixedly connected to the inner surface of inner shell 5. The output end of the second motor 19 movably passes through the upper end of turntable 8 and mounting base 6. A drive gear 29 is fixedly connected to the output end of the second motor 19.

[0052] The internal gear ring 28 is fixedly connected to the inner surface of the mounting base 6. The upper end of the turntable 8 is rotatably connected to the driven gear 30. The internal gear ring 28, the driving gear 29 and the multiple driven gears 30 are all in a meshing state.

[0053] A brush assembly is provided within the mounting base 6 to remove dust from the surface of the laser detector body 24.

[0054] In this embodiment: three driven gears 30 are installed on a turntable 8, which facilitates the rotation of the three driven gears 30 inside the mounting base 6. The driving gear 29 is fixed at the output end of the second motor 19. When the second motor 19 is started, it drives the driving gear 29 to rotate. Since the driving gear 29 and the three driven gears 30 mesh with each other, the three driven gears 30 are driven to rotate under the action of force. The internal gear ring 28 meshes with the three driven gears 30, which drives the three driven gears 30 to rotate inside the mounting base 6. When cleaning and dusting the surface of the laser detector body 24, the length of the telescopic rod 23 can be controlled to retract, so that the laser detector body 24 slides downward. The rotating three driven gears 30 drive the three dust removal soft brushes 27 to clean the surface of the laser detector body 24.

[0055] Please refer to the details. Figure 4A fixing block 21 is fixedly connected to the upper end of the drive gear 29, and a connecting seat 22 is fixedly connected to the inner surface of the fixing block 21. The inner surface of the connecting seat 22 and the outer surface of the telescopic rod 23 are both fixedly connected.

[0056] In this embodiment: the fixing block 21 is fixed to the upper end of the drive gear 29, which facilitates the installation and connection of the connecting seat 22, and at the same time, the outer surface of the telescopic rod 23 is fixed according to the connecting seat 22.

[0057] Please refer to the details. Figure 4 The brush assembly includes:

[0058] Multiple limiting blocks 25 are fixedly connected to the upper ends of multiple driven gears 30. Each limiting block 25 has a fixing rod 26 fixedly connected to its inner surface. Each fixing rod 26 has a dust removal soft brush 27 fixedly connected to its upper end.

[0059] In this embodiment: multiple limiting blocks 25 are respectively fixed to the upper ends of three driven gears 30, providing a mounting base for three fixed rods 26, and the three fixed rods 26 install and support three dust removal soft brushes 27. By controlling the length contraction of the telescopic rod 23, the laser detector body 24 slides downward. The rotating three driven gears 30 drive the three dust removal soft brushes 27 to perform dust removal and cleaning work on the surface of the laser detector body 24. It should be noted that the specific model of the first motor 14 used can be selected by those skilled in the art, and the above-mentioned first motor 14, etc., are all prior art, and this solution will not elaborate on them.

[0060] Please refer to the details. Figure 3 It also includes a regulating mechanism, which includes:

[0061] The first motor 14 is fixedly connected to the lower inner wall of the housing 4. The inner surface of the housing 4 is provided with a limit seat 13. The upper end of the limit seat 13 is fixedly connected with a nut 17. The output end of the first motor 14 moves through the upper end of the limit seat 13.

[0062] The lower end of the lead screw 15 is fixedly connected to the output end of the first motor 14, and the circumferential surface of the lead screw 15 is threaded with a nut 17, the upper end of the nut 17 and the lower end of the inner shell 5 are fixedly connected.

[0063] A limiting component is provided inside the housing 4 to limit the sliding nut 17.

[0064] In this embodiment: the first motor 14 is fixed inside the outer casing 4, and the output end of the first motor 14 is fixed by passing through the limiting seat 13 and the lead screw 15. When the first motor 14 is started, it drives the lead screw 15 to rotate, thereby driving the threaded nut 17 to move up and down. Since the inner casing 5 is fixed to the upper end of the nut 17, the height of the inner casing 5 is adjusted according to the up and down movement of the nut 17. The four limiting rods 16 are fixed to the upper end of the limiting seat 13, and the surfaces of the four limiting rods 16 are respectively slidable by limiting sliders 18. The four limiting sliders 18 are fixed to the surface of the nut 17. When the nut 17 slides up and down, it drives the four limiting sliders 18 to slide on the surface of the four limiting rods 16, which plays a role in limiting and supporting the sliding nut 17, ensuring that the nut 17 moves up and down smoothly, thereby playing a role in adjusting the height of the inner casing 5 and the laser detector body 24 installed on the upper side.

[0065] Please refer to the details. Figure 3 The limiting components include:

[0066] Multiple limiting rods 16 are fixedly connected to the upper end of the limiting seat 13. Multiple limiting sliders 18 are slidably connected to the circumferential surfaces of the multiple limiting rods 16. The outer surfaces of the multiple limiting sliders 18 and the outer surfaces of the nuts 17 are fixedly connected.

[0067] In this embodiment: four limiting rods 16 are fixed to the upper end of the limiting seat 13, and limiting sliders 18 slide on the surface of the four limiting rods 16 respectively. The four limiting sliders 18 and the surface of the nut 17 are fixed. When the nut 17 slides up and down, it drives the four limiting sliders 18 to slide on the surface of the four limiting rods 16, which plays the role of limiting and supporting the sliding nut 17.

[0068] Please refer to the details. Figure 4 The upper end of the sealing seat 7 is fixedly connected to the support seat 9, and the upper end of the support seat 9 is fixedly connected to multiple second support blocks 10.

[0069] In this embodiment, the support base 9 is fixed to the upper end of the sealing base 7, which protects the multiple connecting rods 11 installed inside, and at the same time, the stability of the support base 9 is enhanced by multiple second support blocks 10.

[0070] Please refer to the details. Figure 4 Multiple connecting rods 11 are fixedly connected to the upper end of the sealing seat 7, and the upper ends of the multiple connecting rods 11 are fixedly connected to the upper end of the alarm 12.

[0071] In this embodiment, the alarm 12 is supported and fixed by multiple fixed connecting rods 11, and the alarm 12 is installed on the upper side of the laser detector body 24 so that the alarm 12 can sound an alarm to remind the staff.

[0072] The working principle and usage process of this utility model are as follows: First, the first motor 14 is started to rotate. Since the output end of the first motor 14 is fixed to the lead screw 15, the lead screw 15 is driven to rotate under the action of force, thereby causing the nut 17 to move up and down on the surface of the lead screw 15. At the same time, the four limiting sliders 18 slide on the surfaces of the four limiting rods 16 respectively, which plays a role in limiting and supporting the sliding nut 17. This causes the inner shell 5 and the laser detector body 24 installed on the upper side to adjust their height. Then, the surface of the laser detector body 24 is cleaned and dusted. First, the telescopic rod 23 is retracted, causing the laser detector body 24 to slide downwards. Then, the second motor 19 is started to drive the drive gear 29 to rotate. Since the drive gear 29 and the three driven gears 30 mesh with each other, the three driven gears 30 are driven to rotate under the action of force. The internal gear ring 28 meshes with the three driven gears 30, thereby driving the three driven gears 30 to rotate inside the mounting base 6. The rotating three driven gears 30 drive the three dust removal brushes 27 to perform dust removal and cleaning work on the surface of the laser detector body 24.

[0073] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gimbal type explosion-proof natural gas leakage laser detector automatic dust removal structure, characterized in that, Include: Base (1); A plurality of first support blocks (3), a plurality of the first support blocks (3) are fixedly connected to the upper end of the base (1), the upper end of the base (1) is threadedly connected with a plurality of bolts (2); The shell (4) is fixedly connected to the inner surface of the base (1), the inner surface of the shell (4) is slidably connected with the inner shell (5); Mounting seat (6), the mounting seat (6) is fixedly connected to the outer surface of the inner shell (5), the inner surface of the mounting seat (6) is provided with a sealing seat (7); Telescopic rod (23), the telescopic rod (23) is arranged on the upper side of the sealing seat (7), the upper end of the telescopic rod (23) is fixedly connected with the laser detector body (24); Alarm (12), the alarm (12) is arranged on the upper side of the laser detector body (24), the inner surface of the alarm (12) is provided with a control device (20); and Automatic dust removal mechanism, the automatic dust removal mechanism is arranged on the upper side of the mounting seat (6) to realize the wiping dust removal effect on the surface of the laser detector body (24).

2. The automatic dust removal structure of the pan-tilt explosion-proof natural gas leakage laser detector according to claim 1, characterized in that: The automatic dust removal mechanism comprises: Rotating disc (8), the rotating disc (8) is rotatably connected to the inner surface of the mounting seat (6), the inner surface of the inner shell (5) is fixedly connected with a second motor (19), the output end of the second motor (19) is movably penetrated through the rotating disc (8) and the upper end of the mounting seat (6), the output end of the second motor (19) is fixedly connected with a driving gear (29); Inner gear ring (28), the inner gear ring (28) is fixedly connected to the inner surface of the mounting seat (6), the upper end of the rotating disc (8) is rotatably connected with a driven gear (30), the inner gear ring (28), the driving gear (29) and a plurality of driven gears (30) are in meshing state; Brush assembly, the brush assembly is arranged in the mounting seat (6) to realize the dust removal effect on the surface of the laser detector body (24).

3. The automatic dust removal structure of the pan-tilt explosion-proof natural gas leakage laser detector according to claim 2, characterized in that: The upper end of the driving gear (29) is fixedly connected with a fixed block (21), the inner surface of the fixed block (21) is fixedly connected with a connecting seat (22), the inner surface of the connecting seat (22) and the outer surface of the telescopic rod (23) are fixedly connected.

4. The automatic dust removal structure of the pan-tilt explosion-proof natural gas leakage laser detector according to claim 3, characterized in that: The brush assembly comprises: A plurality of limiting round blocks (25), a plurality of the limiting round blocks (25) are fixedly connected to the upper end of a plurality of driven gears (30), the inner surface of a plurality of the limiting round blocks (25) is fixedly connected with a fixed rod (26), the upper end of a plurality of the fixed rods (26) is fixedly connected with a dust removal soft brush (27).

5. The automatic dust removal structure of the pan-tilt explosion-proof natural gas leakage laser detector according to claim 4, characterized in that: Further comprising an adjusting mechanism, the adjusting mechanism comprises: First motor (14), the first motor (14) is fixedly connected to the lower inner wall of the shell (4), the inner surface of the shell (4) is provided with a limiting seat (13), the upper end of the limiting seat (13) is fixedly connected with a nut (17), the output end of the first motor (14) is movably penetrated through the upper end of the limiting seat (13); A lead screw (15) has its lower end fixedly connected to the output end of the first motor (14), and has its circumferential surface threadedly connected with a nut (17), and the upper end of the nut (17) is fixedly connected with the lower end of the inner shell (5). A limiting assembly is arranged in the outer shell (4) to limit the sliding nut (17).

6. The automatic dust removal structure of the pan-tilt explosion-proof natural gas leakage laser detector according to claim 5, characterized in that: The limiting assembly comprises: A plurality of limiting rods (16) are fixedly connected to the upper end of the limiting seat (13), and the circumferential surface of each limiting rod (16) is slidingly connected with a limiting block (18), and the outer surface of each limiting block (18) is fixedly connected with the outer surface of the nut (17).

7. The automatic dust removal structure of the pan-tilt explosion-proof natural gas leakage laser detector according to claim 6, characterized in that: The upper end of the sealing seat (7) is fixedly connected with a supporting seat (9), and the upper end of the supporting seat (9) is fixedly connected with a plurality of second supporting blocks (10).

8. The automatic dust removal structure of the pan-tilt explosion-proof natural gas leakage laser detector according to claim 7, characterized in that: The upper end of the sealing seat (7) is fixedly connected with a plurality of connecting rods (11), and the upper end of each connecting rod (11) is fixedly connected with the upper end of the alarm (12).

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