Intelligent detection device and detection method of dangerous gas

Abstract

The present invention relates to the technical field of gas detectors, and discloses an intelligent detection device for dangerous gases and a detection method thereof, comprising a gas detector body, a sensor probe installed at the bottom of the gas detector body, a mounting plate fixedly connected to the front side of the lower end of the gas detector body, a linear motor provided on the inner side of the mounting plate, fixing bolts threadedly connected to the linear motor are penetrated on both sides of the mounting plate, a connecting frame is fixedly connected to the lower end of the output shaft of the linear motor, a protective cover is fixedly connected to the outer side of the connecting frame, and a turntable is rotatably connected to the inner side of the protective cover. This intelligent detection device for dangerous gases and a detection method thereof do not require staff to climb or disassemble the gas detector body when it is necessary to adjust the zero point of the gas detector body, making it easier and more convenient to adjust the zero point of the gas detector body located at a high place, and reducing the difficulty of regular inspection and maintenance by staff.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detectors, in particular to an intelligent detection device for dangerous gases and a detection method thereof. Background Art

[0002] During the factory production process, various dangerous gases may be produced due to the different raw materials, processes and equipment used. These gases not only pose a threat to the health of workers, but may also cause safety accidents such as fires and explosions. Therefore, in order to ensure the safety of the working environment, fixed gas detectors are generally installed in the factory to detect dangerous gases. At the same time, since fixed gas detectors integrate a variety of advanced technologies and functions (such as communication technology, data processing capabilities and remote monitoring and management, etc.), these intelligent features enable it to efficiently and accurately complete monitoring tasks in various complex environments, provide real-time warnings and data analysis, and greatly improve the level of industrial safety and environmental monitoring.

[0003] As for the prior art, the patent with the authorization announcement number CN210514251U discloses a dustproof fixed gas detector, including a housing, a connection block fixed at one end of the housing, a display screen fixed at one side of the housing, a sounder fixed on the housing near the display screen, a display light fixed on the housing near the display screen, a protective cover fixed on the housing near the display screen, an elastic protective layer provided on the housing away from the display screen, a fixing sheet provided on the housing near the elastic protective layer, a gas sensor fixed on the connection block at one end away from the housing, and a temperature sensor fixed on the connection block at one end away from the housing. The dustproof fixed gas detector can reduce the vibration of the internal instrument when the vibration is frequent, ensure the precision of the device, extend the life of the device, and can detect the temperature of the environment while detecting the gas concentration in the air, and the dustproof net can filter out dust in the air.

[0004] Although the fixed gas detector in the above patent can filter out dust in the air, it still has certain defects:

[0005] Existing fixed gas detectors need to be zero-adjusted regularly (the steps for zero-adjustment are to first connect a clean gas source (such as a high-purity nitrogen bottle) to the gas inlet of the detector, then select "zero-adjustment" or a similar option in the calibration mode, then let nitrogen enter the gas chamber of the detector, and finally, after the value on the display screen stabilizes, save the zero-adjustment settings according to the steps in the instruction manual). However, when the fixed gas detector needs to detect gases lighter than air (such as hydrogen, methane, etc.), the fixed gas detector will be installed at a higher position. Therefore, when the staff wants to perform zero-adjustment on the fixed gas detector located at a high place, even if the staff can remotely control the fixed gas detector to start the zero-adjustment procedure through a remote control or a control cabinet, they can only use the method of climbing or disassembling the fixed gas detector to connect the clean gas source (such as a high-purity nitrogen bottle) to the gas inlet of the detector and perform zero-adjustment. The entire zero-adjustment process is relatively inconvenient. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an intelligent detection device and a detection method for hazardous gases to solve the problems raised by the background technology, making it easier to adjust the zero point of the gas detector body located at a high place, thereby reducing the difficulty of maintenance for staff.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent detection device for dangerous gases and a detection method thereof, comprising a gas detector body, a sensing probe being installed at the bottom of the gas detector body, a mounting plate being fixedly connected to the front side of the lower end of the gas detector body, a linear motor being provided on the inner side of the mounting plate, fixing bolts being threadedly connected to the linear motor being pierced on both sides of the mounting plate, a connecting frame being fixedly connected to the lower end of the output shaft of the linear motor, a protective cover being fixedly connected to the outer side of the connecting frame, a turntable being rotatably connected to the inner side of the protective cover, a plurality of gas storage chambers being opened inside the turntable, a top plate being fixedly connected to the inner side of the upper end of the gas storage chamber, a plurality of card blocks matching the top plate being slidably connected to the middle position of the top plate, a pressing frame being fixedly connected to the card block at both ends of the top of the plurality of card blocks, two equidistant resetting elastic members being provided between each of the pressing frames and the top plate, the top of the resetting elastic member being fixedly connected to the pressing frame, the bottom of the resetting elastic member being fixedly connected to the top plate, and a rotating component matching the turntable being provided on one side of the protective cover.

[0008] Furthermore, the rotating assembly includes an indication plate, an outward push elastic member, a wedge block, an active gear block, a driven gear block, a connecting plate and an extrusion block, the top and bottom of the indication plate are provided with a slide groove, the inside of the slide groove is slidably connected with a connecting slider, the connecting slider is fixedly connected to the protective cover on the side away from the indication plate, a plurality of storage cavities are provided on the side of the indication plate away from the turntable, the plurality of storage cavities are equidistantly distributed, each of the storage cavities is slidably connected with a wedge block on the side away from the turntable, the inside of each of the storage cavities is fixedly connected with a plurality of equidistantly distributed outward push elastic members, a plurality of active gear blocks are fixedly connected to the side of the indication plate close to the turntable, a plurality of driven gear blocks meshing with the active gear block are fixedly connected to the outer wall of the turntable, the connecting plate is fixedly connected to one side of the linear motor, the extrusion block is fixedly connected to the end of the connecting plate away from the linear motor, and the top of the extrusion block matches the bottom of the wedge block.

[0009] Furthermore, a cone angle is provided at one end of the wedge block, a chamfer is provided on a side of the wedge block away from the cone angle, and the cross section of the slide groove is T-shaped.

[0010] Furthermore, a gas injection port is provided on a side wall of the gas storage chamber away from the linear motor, and a gas nozzle is fixedly connected to the inside of the gas injection port.

[0011] Furthermore, a plurality of transparent observation chambers connected to the air storage chamber are fixedly connected to the bottom of the turntable, the number of the transparent observation chambers matches the number of the air storage chambers, a lower pressure plate is slidably connected to the upper end of the interior of the transparent observation chamber, an upward push elastic member is fixedly connected to the bottom of the lower pressure plate, the bottom of the upward push elastic member is fixedly connected to the bottom of the transparent observation chamber, and scale lines are opened on the outer wall of the transparent observation chamber.

[0012] Furthermore, an elastic washer is provided on the circumferential side of the top of the air storage chamber, and the elastic washer is fixedly connected to the turntable.

[0013] Furthermore, a rotating ring is fixedly connected to the top and bottom of the inner side of the protective cover, a rotating groove matching the rotating ring is provided on the top and bottom of the turntable, and an inflation window is provided on one side of the protective cover.

[0014] The detection method of the intelligent detection device of dangerous gas comprises the following steps:

[0015] Step 1: First start the zero point adjustment procedure through the remote terminal, then start the linear motor to control the sensor probe to enter the gas storage chamber;

[0016] Step 2: After the sensor probe enters the gas storage chamber, the linear motor continues to drive the turntable to move upward. At this time, the outer shell of the sensor probe pushes the pressing frame downward, thereby releasing the clean gas in the gas storage chamber and entering the sensor probe;

[0017] Step 3: Wait for a while, and the gas detector will complete the zero point adjustment under the control of the program;

[0018] Step 4: After the zero point adjustment of the main body of the gas detector is completed, the linear motor is started again. After the linear motor controls the sensor probe to leave the gas storage chamber, the next unused gas storage chamber is aligned with the sensor probe to perform the next zero point adjustment;

[0019] Step 5: The gas detector body can detect dangerous gases. When the sensor probe of the gas detector body detects dangerous gases, the sound and light alarm on the gas detector body will flash and emit a buzzing sound.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This intelligent detection device and method for hazardous gases does not require workers to climb or disassemble the main body of the gas detector when it is necessary to adjust the zero point of the main body of the gas detector, making it easier and more convenient to adjust the zero point of the main body of the gas detector located at a high place, and reducing the difficulty of regular inspection and maintenance by workers.

[0022] 2. The intelligent detection device and detection method of this kind of hazardous gas, when the clean gas in all the gas storage chambers in the turntable has been used, the staff only needs to re-inject new clean gas into the gas storage chamber to continue using it, and the process is simple and convenient.

[0023] 3. This kind of intelligent detection device for hazardous gases and its detection method can judge the size of the air pressure in the gas storage chamber by the downward movement distance of the lower pressure plate when adding new clean gas into the gas storage chamber, and then judge the amount of clean gas in the gas storage chamber in disguised form (because the volume of the gas storage chamber will not change, the greater the air pressure in the gas storage chamber, the greater the amount of clean gas), so that the staff can more easily judge whether the amount of clean gas added meets the standard when adding clean gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention as a whole when viewed from above;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention as a whole when viewed from the left;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention when it is unfolded as a whole;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the main body of the gas detector of the present invention when viewed from above;

[0029] Figure 6 It is a partial cross-sectional view of the turntable of the present invention;

[0030] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at point A in the middle;

[0031] Figure 8 This is a schematic diagram of the connection structure between the top plate and the card block of the present invention;

[0032] Fig. 9 A partial cross-sectional view of the protective cover of the present invention;

[0033] Fig.10 A partial cross-sectional view of the sign board of the present invention;

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the sign board of the present invention when viewed from the left.

[0035] In the figure: 1. Gas detector body; 2. Sensor probe; 3. Mounting plate; 4. Fixing bolt; 5. Linear motor; 6. Connecting frame; 7. Protective cover; 8. Rotating ring; 9. Connecting slider; 10. Turntable; 11. Rotating groove; 12. Gas storage chamber; 13. Top plate; 14. Block; 15. Pressing frame; 16. Reset elastic member; 17. Elastic gasket; 18. Gas injection port; 19. Gas nozzle; 20. Transparent observation chamber; 21. Lower pressure plate; 22. Push-up elastic member; 23. Marking plate; 24. Storage chamber; 25. Push-out elastic member; 26. Wedge block; 27. Slide; 28. Active gear block; 29. ​​Driven gear block; 30. Connecting plate; 31. Extrusion block. DETAILED DESCRIPTION

[0036] 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 the embodiments.

[0037] See also Figures 1 to 11The intelligent detection device for dangerous gas comprises a gas detector body 1, a sensor probe 2 is installed at the bottom of the gas detector body 1, a mounting plate 3 is fixedly connected to the front side of the lower end of the gas detector body 1, a linear motor 5 is arranged on the inner side of the mounting plate 3, fixing bolts 4 threadedly connected to the linear motor 5 are penetrated on both sides of the mounting plate 3, a connecting frame 6 is fixedly connected to the lower end of the output shaft of the linear motor 5, a protective cover 7 is fixedly connected to the outer side of the connecting frame 6, a turntable 10 is rotatably connected to the inner side of the protective cover 7, and a plurality of turntables 10 are provided inside An air storage chamber 12, a top plate 13 is fixedly connected to the inner side of the upper end of the air storage chamber 12, a plurality of blocks 14 matching the top plate 13 are slidably connected to the middle position of the top plate 13, both ends of the tops of the plurality of blocks 14 are provided with pressing frames 15 fixedly connected to the blocks 14, two equidistant reset elastic members 16 are provided between each pressing frame 15 and the top plate 13, the top of the reset elastic member 16 is fixedly connected to the pressing frame 15, the bottom of the reset elastic member 16 is fixedly connected to the top plate 13, and a rotating component matching the turntable 10 is provided on one side of the protective cover 7.

[0038] In the intelligent detection device for dangerous gases of the present invention, when it is necessary to adjust the zero point of the gas detector body 1 located at a high place, the zero point adjustment program is first started through the control terminal (such as a mobile phone, a control cabinet or a remote control, etc.), and then the linear motor 5 is started, and the output shaft of the linear motor 5 drives the protective cover 7 to move upward through the connecting frame 6, and the turntable 10 located in the protective cover 7 also moves upward synchronously. When the turntable 10 is installed, the gas storage chamber 12 is aligned with the sensor probe 2, so the sensor probe 2 will enter the gas storage chamber 12, and the linear motor 5 is still The rotary disk 10 will be driven to move upward, and the shell of the sensor probe 2 will push the pressing frame 15 downward, and the pressing frame 15 will push the block 14 downward until the block 14 is separated from the top plate 13, and the linear motor 5 will stop. At this time, the clean gas (such as high-purity nitrogen, etc.) with a certain pressure in the gas storage chamber 12 will gush out from the gas storage chamber 12. Since the top of the gas storage chamber 12 has been blocked by the sensor probe 2, these clean gases (such as high-purity nitrogen, etc.) will enter the sensor probe 2. After a period of time, the zero point adjustment procedure in the gas detector body 1 will be completed. After the zero point adjustment is completed, the linear motor 5 drives the turntable 10 to move downward so that the sensor probe 2 is separated from the gas storage chamber 12. The whole process does not require the staff to climb or disassemble the gas detector body 1, so the zero point adjustment process is simpler and more convenient. After the zero point adjustment of the gas detector body 1 is completed, the gas detector body 1 can detect dangerous gases. When the sensor probe 2 of the gas detector body 1 detects dangerous gases, the sound and light alarm on the gas detector body 1 will flash and emit a buzzing sound. At the same time, the linear motor 5 is connected and fixed to the gas detector body 1 by the fixing bolt 4. Therefore, if the height of the gas detector body 1 is relatively low (this means that the staff does not need to climb or disassemble the gas detector body 1), the linear motor 5 and the turntable 10 and other structures can be disassembled to make the gas detector body 1 lighter and the energy consumption lower. In addition, the structure of the gas detector body 1 and the sensor probe 2 in the present invention is similar to a fixed gas detector structure that is easy to prevent dust in the patent with the authorization announcement number CN210514251U, so it will not be elaborated here.

[0039] As a preferred technical solution of the present invention, the rotating assembly includes an indicator plate 23, an outward elastic member 25, a wedge block 26, an active gear block 28, a driven gear block 29, a connecting plate 30 and an extrusion block 31. The top and bottom of the indicator plate 23 are provided with a slide groove 27, and the inside of the slide groove 27 is slidably connected with a connecting slider 9. The connecting slider 9 is fixedly connected to the protective cover 7 on the side away from the indicator plate 23. A plurality of storage cavities 24 are provided on the side of the indicator plate 23 away from the turntable 10. The plurality of storage cavities 24 are equidistantly distributed, and each of the storage cavities A wedge block 26 is slidably connected to the side of 24 away from the turntable 10, and a plurality of equally spaced outward elastic members 25 are fixedly connected to the interior of each of the storage cavities 24. A plurality of active tooth blocks 28 are fixedly connected to the side of the marking plate 23 close to the turntable 10, and a plurality of driven tooth blocks 29 meshing with the active tooth blocks 28 are fixedly connected to the outer wall of the turntable 10. The connecting plate 30 is fixedly connected to one side of the linear motor 5, and the extrusion block 31 is fixedly connected to the end of the connecting plate 30 away from the linear motor 5, and the top of the extrusion block 31 matches the bottom of the wedge block 26.

[0040] Specifically, when the linear motor 5 drives the protective cover 7 to move upward through the connecting frame 6, the turntable 10 inside the protective cover 7 and the marking plate 23 on one side of the protective cover 7 will also move upward synchronously. At this time, since the turntable 10 and the marking plate 23 are not affected by other external forces, the turntable 10 and the marking plate 23 will not rotate; and when the linear motor 5 drives the protective cover 7 to move downward through the connecting frame 6, the bottom of the wedge block 26 on the marking plate 23 will contact the top of the extrusion block 31 (since the top of the extrusion block 31 and the bottom of the wedge block 26 are both in an inclined state, the wedge block 26 will be squeezed and moved by the extrusion block 31). During the downward movement, the extrusion block 31 will push the wedge block 26 to move in the horizontal direction, and the wedge block 26 will drive the marking plate 23 to move horizontally synchronously. When the marking plate 23 moves, the active tooth block 28 fixed to the marking plate 23 will push the driven tooth block 29 to move. Since the turntable 10 and the protective cover 7 are rotatably connected, the driven tooth block 29 will drive the turntable 10 to rotate until the next unused air storage chamber 12 is aligned with the sensor probe 2, so that the sensor probe 2 can enter the air storage chamber 12 when the zero point adjustment is performed next time. In addition, each wedge block 26 on the marking plate 23 is equivalent to a scale, such as Figure 1 As shown, the moving direction of the marking plate 23 is from right to left. When all the wedge blocks 26 on the marking plate 23 are located on the left side of the extrusion block 31, it indicates that all the air storage chambers 12 have been used once, which is convenient for the staff to intuitively judge the remaining number of uses of the turntable 10.

[0041] As a preferred technical solution of the present invention, a cone angle is provided at one end of the wedge block 26, a chamfer is provided on the side of the wedge block 26 away from the cone angle, and the cross section of the slide groove 27 is T-shaped.

[0042] Specifically, the T-shaped slide groove 27 has a better limiting effect, preventing the marking plate 23 from being separated from the connecting slider 9. At the same time, since the extrusion block 31 has a certain length, the extrusion block 31 may contact another wedge block 26 during the horizontal movement of the marking plate 23. In order to avoid the other wedge block 26 from abutting against the extrusion block 31 and causing damage to the marking plate 23, a chamfer is provided on the side of the wedge block 26 away from the cone angle, so that after the extrusion block 31 contacts the other wedge block 26, the wedge block 26 will be pressed back into the receiving cavity 24 and will not abut against the extrusion block 31.

[0043] As a preferred technical solution of the present invention, a gas injection port 18 is provided on the side wall of the gas storage chamber 12 away from the linear motor 5 , and a gas nozzle 19 is fixedly connected to the inside of the gas injection port 18 .

[0044] Specifically, after all the gas storage chambers 12 in the turntable 10 have been used once, the fixing bolts 4 can be removed, and then the turntable 10 can be removed from the gas detector body 1, and then the staff can re-inflate the gas storage chambers 12 through the gas nozzle 19.

[0045] As a preferred technical solution of the present invention, a plurality of transparent observation chambers 20 connected to the air storage chamber 12 are fixedly connected to the bottom of the turntable 10, and the number of the transparent observation chambers 20 matches the number of the air storage chambers 12. A lower pressure plate 21 is slidably connected to the upper end of the transparent observation chamber 20, and an upward push elastic member 22 is fixedly connected to the bottom of the lower pressure plate 21. The bottom of the upward push elastic member 22 is fixedly connected to the bottom of the transparent observation chamber 20, and scale lines are opened on the outer wall of the transparent observation chamber 20.

[0046] Specifically, during the process of inflating the air storage chamber 12, the staff can judge whether the amount of clean gas in the air storage chamber 12 is sufficient by the position of the lower pressure plate 21. Since the volume of the air storage chamber 12 will not change, the greater the air pressure in the air storage chamber 12, the greater the pressure on the lower pressure plate 21, and the greater the distance the lower pressure plate 21 moves downward, the greater the amount of clean gas, which makes it easier for the staff to judge whether the amount of clean gas in the air storage chamber 12 meets the standard.

[0047] As a preferred technical solution of the present invention, an elastic washer 17 is provided on the circumferential side of the top of the air storage chamber 12 , and the elastic washer 17 is fixedly connected to the turntable 10 .

[0048] Specifically, the gap between the sensor probe 2 and the air storage chamber 12 is blocked by the elastic gasket 17 to prevent other impurity air from entering the sensor probe 2 during zero point adjustment, thereby preventing errors in zero point adjustment.

[0049] As a preferred technical solution of the present invention, the top and bottom of the inner side of the protective cover 7 are fixed with a rotating ring 8, the top and bottom of the turntable 10 are provided with a rotating groove 11 matching the rotating ring 8, and an inflation window is provided on one side of the protective cover 7.

[0050] Specifically, after the gas storage chamber 12 in the turntable 10 has been used completely, a clean gas source (such as a high-purity nitrogen bottle) can be connected to the gas nozzle 19 to fill the gas storage chamber 12 with new clean gas (such as high-purity nitrogen). At the same time, in order to prevent impurity gas from entering the gas storage chamber 12 during zero adjustment, the block 14 can be pushed downward first to create a gap between the block 14 and the top plate 13, and then the gas storage chamber 12 is flushed with clean gas for a certain period of time, and then the block 14 is released. Under the action of the reset elastic member 16, the block 14 will return to its original position, and then inflation can be carried out. At the same time, after inflation, the turntable 10 can be rotated in the reverse direction (the reverse rotation refers to the direction opposite to the direction when the indicator plate 23 pushes the turntable 10 to rotate), so as to reset the device for subsequent use.

[0051] The detection method of the intelligent detection device of dangerous gas of the present invention is as follows:

[0052] Step 1: First, start the zero point adjustment procedure through a remote terminal (such as a mobile phone or a control cabinet), and then start the linear motor 5 to control the sensor probe 2 to enter the gas storage chamber 12;

[0053] Step 2: After the sensor probe 2 enters the gas storage chamber 12, the linear motor 5 continues to drive the turntable 10 to move upward. At this time, the outer shell of the sensor probe 2 pushes the pressing frame 15 downward, so that the clean gas (such as high-purity nitrogen, etc.) in the gas storage chamber 12 is released and enters the sensor probe 2;

[0054] Step 3: Wait for a while, and the gas detector body 1 will complete the zero point adjustment under the control of the program;

[0055] Step 4: After the zero point adjustment of the gas detector body 1 is completed, the linear motor 5 is started again. After the linear motor 5 controls the sensor probe 2 to leave the gas storage chamber 12, the next unused gas storage chamber 12 is aligned with the sensor probe 2 to perform the next zero point adjustment;

[0056] Step 5: The gas detector body 1 can detect dangerous gases. When the sensor probe 2 of the gas detector body 1 detects dangerous gases, the sound and light alarm on the gas detector body 1 will flash and emit a buzzing sound.

[0057] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An intelligent detection device for dangerous gases, comprising a gas detector body (1), a sensing probe (2) being installed at the bottom of the gas detector body (1), characterized in that: A mounting plate (3) is fixedly connected to the front side of the lower end of the gas detector body (1), a linear motor (5) is provided on the inner side of the mounting plate (3), fixing bolts (4) threadedly connected to the linear motor (5) are passed through both sides of the mounting plate (3), a connecting frame (6) is fixedly connected to the lower end of the output shaft of the linear motor (5), a protective cover (7) is fixedly connected to the outer side of the connecting frame (6), a turntable (10) is rotatably connected to the inner side of the protective cover (7), a plurality of gas storage chambers (12) are provided inside the turntable (10), clean gas is stored in the gas storage chambers (12), and the clean gas is used to zero the gas detector body (1). Adjustment, a top plate (13) is fixedly connected to the inner side of the upper end of each of the air storage chambers (12), a plurality of blocks (14) matching the top plate (13) are slidably connected to the middle position of the top plate (13), a pressing frame (15) fixedly connected to the block (14) is provided at both ends of the top of the plurality of blocks (14), two equidistant resetting elastic members (16) are provided between each of the pressing frames (15) and the top plate (13), the top of the resetting elastic member (16) is fixedly connected to the pressing frame (15), and the bottom of the resetting elastic member (16) is fixedly connected to the top plate (13), and a rotating assembly matching the turntable (10) is provided on one side of the protective cover (7); The rotating assembly comprises an indication plate (23), an outward push elastic member (25), a wedge block (26), an active tooth block (28), a driven tooth block (29), a connecting plate (30) and an extrusion block (31). The indication plate (23) is provided with a slide groove (27) at the top and bottom. A connecting slider (9) is slidably connected inside the slide groove (27). The connecting slider (9) is fixedly connected to the protective cover (7) on a side away from the indication plate (23). A plurality of storage cavities (24) are provided on a side away from the rotating disk (10). The plurality of storage cavities (24) are equidistantly distributed. Each storage cavity (24) is away from the indication plate (23). A wedge block (26) is slidably connected to one side of the turntable (10), a plurality of equally spaced outward elastic members (25) are fixedly connected inside each of the storage cavities (24), a plurality of active tooth blocks (28) are fixedly connected to the side of the indicator plate (23) close to the turntable (10), a plurality of driven tooth blocks (29) meshing with the active tooth blocks (28) are fixedly connected to the outer wall of the turntable (10), the connecting plate (30) is fixedly connected to one side of the linear motor (5), the extrusion block (31) is fixedly connected to an end of the connecting plate (30) away from the linear motor (5), and the top of the extrusion block (31) matches the bottom of the wedge block (26).

2. The intelligent detection device for dangerous gases according to claim 1 is characterized in that: One end of the wedge block (26) is provided with a cone angle, a side of the wedge block (26) away from the cone angle is provided with a chamfer, and the cross section of the slide groove (27) is T-shaped.

3. The intelligent detection device for dangerous gases according to claim 1, characterized in that: A gas injection port (18) is provided on a side wall of the gas storage chamber (12) away from the linear motor (5), and a gas nozzle (19) is fixedly connected to the inside of the gas injection port (18).

4. The intelligent detection device for dangerous gases according to claim 1, characterized in that: A plurality of transparent observation chambers (20) connected to the air storage chamber (12) are fixedly connected at the bottom of the turntable (10), the number of the transparent observation chambers (20) matching the number of the air storage chambers (12), a lower pressure plate (21) is slidably connected to the upper end of the transparent observation chamber (20), an upward push elastic member (22) is fixedly connected to the bottom of the lower pressure plate (21), the bottom of the upward push elastic member (22) is fixedly connected to the bottom of the transparent observation chamber (20), and a scale line is provided on the outer wall of the transparent observation chamber (20).

5. The intelligent detection device for dangerous gases according to claim 1, characterized in that: An elastic washer (17) is provided on the circumferential side of the top of the air storage chamber (12), and the elastic washer (17) is fixedly connected to the rotating disk (10).

6. The intelligent detection device for dangerous gases according to claim 1, characterized in that: A rotating ring (8) is fixedly connected to the top and bottom of the inner side of the protective cover (7), a rotating groove (11) matching the rotating ring (8) is provided on the top and bottom of the rotating disk (10), and an inflation window is provided on one side of the protective cover (7).

7. A detection method for a dangerous gas intelligent detection device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: First, start the zero point adjustment program through the remote terminal, then start the linear motor (5) to control the sensor probe (2) to enter the air storage chamber (12); Step 2: After the sensing probe (2) enters the gas storage chamber (12), the linear motor (5) continues to drive the turntable (10) to move upward, and at this time, the outer shell of the sensing probe (2) pushes the pressing frame (15) downward, thereby releasing the clean gas in the gas storage chamber (12) and allowing it to enter the sensing probe (2); Step 3: Wait for a while, and the gas detector body (1) will complete the zero point adjustment under the control of the program; Step 4: After the zero point adjustment of the gas detector body (1) is completed, the linear motor (5) is started again. After the linear motor (5) controls the sensor probe (2) to separate from the gas storage chamber (12), the next unused gas storage chamber (12) is aligned with the sensor probe (2) to perform the next zero point adjustment; Step 5: The gas detector body (1) can detect dangerous gases. When the sensor probe (2) of the gas detector body (1) detects dangerous gases, the sound and light alarm on the gas detector body (1) will flash and emit a buzzing sound.

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