Alarm method for chemical safety management

Abstract

The invention discloses an alarm method for chemical safety management. The alarm method comprises the following steps: S1, equipment installation: before use, installing the whole equipment on the surface of a wall by using a U-shaped installation frame in a rotary guide mechanism; and S2, continuous gas monitoring: starting a gas detector in the monitoring protection mechanism to monitor indoor air. The invention relates to the technical field of gas monitoring. According to the alarm method for chemical engineering safety management, a rotary guide mechanism and a monitoring protection mechanism are combined for use, and through the arrangement of the two mechanisms, when a motor is started and drives a reciprocating lead screw to rotate, a filter screen cover reciprocates to detect spaces of different areas; and during movement, an inner arc dehairing plate can actively clean the surface of the filter screen cover, blockage is prevented, meanwhile, the monitoring and protecting mechanism can continuously rotate anticlockwise and clockwise as a whole through contact and extrusion of a pushing and pressing round rod and arc-shaped guide plates on the two sides, and the air monitoring range of the filter screen cover is further widened.

Description

Technical Field

[0001] The invention relates to the technical field of gas monitoring, in particular to an alarm method for chemical safety management. Background Art

[0002] Chemical industry refers to the chemical industry. Any use of chemical methods to change the composition or structure of substances or to synthesize new substances belongs to chemical production technology, and the resulting products are chemical products. In modern life, chemical products are almost indispensable anytime and anywhere, so chemical production safety is of vital importance. The existing chemical production process involves the use of flammable, explosive, toxic and harmful items, and some gas detectors are needed for safety management. However, the existing alarm devices are fixed, resulting in the need to install multiple alarm devices within the production range, which increases costs and requires staff to manually move and adjust to complete monitoring work at different locations, which is inconvenient to use. Patent documents have now been made to improve this.

[0003] For example, Chinese patent CN216848947U, an alarm device for chemical safety management, relates to the technical field of alarm devices, including an installation box, an alarm, a controller and an electrochemical sensor, the alarm is connected to the top of the installation box, the controller and the electrochemical sensor are both installed on the inner wall of the installation box, the electrochemical sensor and the alarm are both electrically connected to the controller, and a threaded mounting rod is provided on the back of the installation box, and mounting plates are rotatably installed at both ends of the threaded mounting rod. The utility model drives the threaded mounting rod to rotate back and forth after the servo motor is started through the mutual cooperation between the installation box, the alarm, the threaded mounting rod, the mounting plate, the moving block, the servo motor and the limit, at this time, the moving block can drive the installation box as a whole to move back and forth along the threaded mounting rod, which can effectively expand the gas monitoring range, reduce the initial investment and later maintenance costs, and at the same time, the position does not need to be manually adjusted, which brings convenience to use.

[0004] Although the device in the above document can use the threaded rod to drive the monitoring device to move left and right to increase the monitoring range, it still has defects that need to be improved in actual use, such as: In chemical production, the released toxic gases will drift irregularly according to the airflow. Some toxic gases with heavy molecular weight will be in the low place, while some toxic gases with light molecular weight will be in the high place. However, the equipment in the document can only drive the monitor to move left and right, and cannot monitor the toxic gases in the air more effectively, which reduces the practicality. Therefore, a chemical safety management alarm method that can improve the monitoring range is now designed to solve such defects. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an alarm method for chemical safety management, which solves the problems of small monitoring range and low practicality of the existing monitoring equipment.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a chemical safety management alarm method, specifically comprising the following steps: S1. Equipment installation: Before use, first use the U-shaped mounting frame in the rotary guide mechanism to install the entire equipment on the wall surface; S2, continuous gas monitoring: start the gas detector in the monitoring protection mechanism to monitor the indoor air; S3, forward rotation monitoring: the monitoring and protection mechanism is driven to rotate clockwise as a whole by utilizing the contact between the push rod and the arc guide plate each time the push rod moves; S4, monitoring range flipping: when the reciprocating screw rod is in a vertical state, the arc guide plate is flipped by using the first inclined plate; S5. Reverse rotation monitoring: After the arc guide plate is flipped over, the contact between the pushing round rod and the arc guide plate drives the monitoring protection mechanism to rotate in the reverse direction as a whole.

[0007] Preferably, the rotary guide mechanism comprises a circular chassis, and a monitoring and protection mechanism is installed on the surface of the circular chassis.

[0008] Preferably, an annular sliding groove is provided at the rear portion of the inner cavity of the circular chassis, a circular rotating ring is slidably installed on the inner side of the annular sliding groove, gear groups are installed on both sides of the surface of the circular rotating ring, and there are a plurality of gear groups. Rotating rods are rotatably connected to both sides of the inner cavity of the circular chassis through bearing members, and there are a plurality of rotating rods. The opposite ends of the rotating rods on both sides are fixedly connected with arc guide plates, and the arc guide plates on both sides are staggered. The surface of the rotating rod is fixedly connected with a first gear cylinder meshing with the gear group.

[0009] Preferably, a first inclined panel is fixedly connected to the bottom of the circular rotating ring inner cavity, a second inclined panel is fixedly connected to the right side of the circular rotating ring inner cavity, a reverse guide seat is fixedly connected to the upper side of the rear part of the circular chassis inner cavity, a side slide groove is provided on the edge side of the circular chassis, and a U-shaped mounting frame is fixedly connected to the rear part of the circular chassis through a fixing plate, and a plurality of U-shaped mounting frames are provided.

[0010] Preferably, the monitoring and protection mechanism includes two arc-shaped sliding plates, which are slidably installed on both sides of the inner cavity of the side slide groove, respectively. The upper and lower parts between the surfaces of the two arc-shaped sliding plates are respectively fixedly connected to the first guide frame and the second guide frame through fixed blocks, and a cross-connecting plate is fixedly connected to the left side between the first guide frame and the second guide frame. The surface of the arc-shaped sliding plate on the right side is fixedly connected to a motor through a bracket, and the output shaft of the motor is fixedly connected to a reciprocating screw through a coupling, and the left end of the reciprocating screw is rotatably connected to the right side of the cross-connecting plate through a bearing.

[0011] Preferably, the surface of the reciprocating screw is threadedly connected with a threaded barrel, the surface of the first guide frame is slidably mounted with a sliding sleeve frame, and the bottom of the sliding sleeve frame is fixedly connected to the threaded barrel through a fixed block, and the rear part of the threaded barrel is fixedly connected to a pushing round rod used in conjunction with the arc guide plate, the first inclined plate, the second inclined plate and the reverse guide seat through a fixed block.

[0012] Preferably, the surface of the sliding sleeve frame is fixedly connected to a bearing sleeve via a fixed block, the inner side of the bearing sleeve is rotatably connected to a threading barrel via a bearing member, the surface of the threading barrel and located below the bearing sleeve is fixedly connected to a filter screen cover, the bottom end of the threading barrel and located on the inner side of the filter screen cover is fixedly connected to a rectangular connecting frame, and the inner side of the rectangular connecting frame is fixedly connected to a gas detector.

[0013] Preferably, inner arc scraping plates are fixedly connected to both sides of the bearing sleeve, and the two inner arc scraping plates are respectively fitted with two sides of the filter screen.

[0014] Preferably, a first tooth block is fixedly connected to the surface of the second guide frame, second tooth blocks are fixedly connected to both sides of the rear portion of the second guide frame, and a gear plate meshing with the first tooth block is rotatably connected to the bottom of the filter screen via a bearing.

[0015] Preferably, the bottom of the sliding sleeve frame is rotatably connected to a threaded rod through a bearing member, and the bottom end of the threaded rod is fixedly connected to a second gear cylinder meshing with the second tooth block, the surface of the threaded rod is threadedly connected to an arc rod, both ends of the arc rod are fixedly connected to a concave scraper, and the concave scraper is sleeved on the surface of the inner arc scraper plate. Beneficial Effects

[0016] The present invention provides an alarm method for chemical safety management. Compared with the existing technology, it has the following beneficial effects: (1) The alarm method for chemical safety management uses a rotating guide mechanism and a monitoring and protection mechanism in combination. The arrangement of these two mechanisms can allow the filter cover to reciprocate to detect spaces in different areas when the motor is started and drives the reciprocating screw to rotate. When moving, the inner arc scraper plate can actively clean the surface of the filter cover to prevent clogging. At the same time, the contact and extrusion of the pushing round rod and the arc guide plates on both sides can make the monitoring and protection mechanism as a whole continuously rotate counterclockwise and clockwise, further improving the range of air monitoring of the filter cover and meeting the current use.

[0017] (2) The alarm method for chemical safety management is characterized in that arc-shaped guide plates are rotatably installed on both sides of the inner cavity of the circular chassis through rotating rods, and the arc-shaped guide plates on both sides are arranged in a staggered manner and used in conjunction with a pushing rod. The arrangement of these structures can make the pushing rod alternately contact and squeeze the arc-shaped guide plates on both sides according to the direction faced by the inclined surface of the arc-shaped guide plate when the pushing rod follows the reciprocating movement of the filter screen cover, thereby driving the monitoring and protection mechanism as a whole to rotate along the surface of the circular chassis, ensuring that the filter screen cover can monitor the air at the upper and lower parts and the remaining space heights, thereby improving practicality.

[0018] (3) The alarm method for chemical safety management is to slide a circular ring on the rear of the inner cavity of the circular chassis, and to install a tooth group on the surface of the circular ring, and to be used in conjunction with a first inclined plate and a second inclined plate. The arrangement of these structures can use the pushing rod to squeeze the first inclined plate and the second inclined plate when the reciprocating screw rotates to a vertical or horizontal state, thereby driving the circular ring to rotate, and the tooth group can change the direction of the plurality of arc-shaped guide plates by meshing with the first gear cylinder, so that the pushing rod can drive the monitoring and protection mechanism as a whole to repeatedly and continuously rotate clockwise and counterclockwise, without the need for staff to operate.

[0019] (4) The alarm method for chemical safety management is to install inner arc scraping plates that fit the filter screen on both sides of the bearing sleeve and use them in conjunction with a concave scraper. The arrangement of these structures can allow the inner arc scraping plates to clean the fluff on the surface of the filter screen when it rotates and moves, avoiding clogging of the holes in the filter screen and ensuring the normal operation of the internal gas detector. At the same time, the concave scraper can scrape off the accumulated fluff after the filter screen reaches both ends, avoiding the accumulation of fluff impurities and improving the overall functionality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the process of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 It is a rear view of the structure of the present invention; Figure 4 It is a schematic diagram of the rotary guide mechanism structure of the present invention; Figure 5 For the present invention Figure 4 A partial enlarged view of the middle A; Figure 6 It is a schematic diagram of the structure of the rotating ring, the tooth set, the first inclined plate and the second inclined plate of the present invention; Figure 7 is a cross-sectional view of the circular chassis structure of the present invention; Figure 8 It is a schematic diagram of the monitoring and protection mechanism structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the pushing round rod, the sliding sleeve frame and the bearing sleeve of the present invention; Fig.10 It is a schematic diagram of the arc rod and concave scraper structure of the present invention; Fig.11 is a cross-sectional view of the filter screen structure of the present invention; Fig.12 It is a schematic diagram of the motor, cross-connecting plate and reciprocating screw structure of the present invention.

[0021] In the figure: 1, rotary guide mechanism; 2, monitoring and protection mechanism; 101, circular chassis; 102, annular sliding groove; 103, circular rotating ring; 104, tooth group; 105, rotating rod; 106, arc guide plate; 107, first gear cylinder; 108, first inclined plate; 109, second inclined plate; 110, reverse guide seat; 111, U-shaped mounting frame; 112, side sliding groove; 201, arc slide plate; 202, first guide frame; 203, motor; 204, cross link Plate; 205, reciprocating screw; 206, threaded cylinder; 207, pushing round rod; 208, sliding sleeve frame; 209, bearing sleeve; 210, threading cylinder; 211, filter screen; 212, rectangular connecting frame; 213, gas detector; 214, inner arc scraper plate; 215, first tooth block; 216, second tooth block; 217, gear plate; 218, threaded rod; 219, second gear cylinder; 220, arc rod; 221, concave scraper; 222, second guide frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-12The present invention provides a technical solution: an alarm method for chemical safety management, which specifically comprises the following steps: S1. Equipment installation: Before use, first use the U-shaped mounting frame 111 in the rotary guide mechanism 1 to mount the entire equipment on the wall surface; S2, continuous gas monitoring: start the gas detector 213 in the monitoring protection mechanism 2 to monitor the indoor air; S3, forward rotation monitoring: utilizing the contact between the push rod 207 and the arc guide plate 106 each time it moves to drive the monitoring protection mechanism 2 to rotate clockwise as a whole; S4, monitoring range flipping: when the reciprocating screw rod 205 is in a vertical state, the arc guide plate 106 is flipped by using the first inclined plate 108; S5, reverse rotation monitoring: after the arc-shaped guide plate 106 is turned over, the contact between the pushing round rod 207 and the arc-shaped guide plate 106 drives the monitoring protection mechanism 2 to rotate reversely as a whole.

[0024] The above-mentioned chemical safety management alarm method has the following more specific steps: S1, equipment installation: before use, first insert bolts into the interior of a plurality of U-shaped mounting frames 111, and then use the bolts to mount the rotary guide mechanism 1 as a whole on the surface of the wall for fixing, and after the installation is completed, proceed to step S2; S2. Continuous gas monitoring: After the installation of the rotating guide mechanism 1 is completed, the gas detector 213 and the motor 203 are started at the same time. At this time, the indoor air passes through the holes on the surface of the filter cover 211 and enters the filter cover 211 to be detected by the gas detector 213, while the motor 203 drives the reciprocating screw 205 to rotate. The rotation of the reciprocating screw 205 will utilize the engagement of the sliding sleeve frame 208 with the first guide frame 202 to allow the threaded cylinder 206 to drive the bearing sleeve 209, the pushing rod 207 and the filter cover 211 to move back and forth. When the filter cover 211 moves, the gear plate 217 at the bottom is engaged with the first tooth block 215, so that the filter cover 211 rotates under the action of the threading tube 210. When the filter cover 211 rotates, the two inner arc scraping plates 214 will scrape its surface, thereby avoiding fluff and other impurities in the air. The first gear 217 is engaged with the second gear block 216 to drive the threaded rod 218 to rotate. After the threaded rod 218 rotates, the arc rod 220 is used to drive the concave scrapers 221 on both sides to descend along the surface of the inner arc scraper plate 214, so as to remove the fluff impurities scraped on the surface of the inner arc scraper plate 214. After the filter screen 211 is away from the two ends of the reciprocating screw rod 205, the threaded rod 218 will use the second tooth block 216 to drive the threaded rod 218 to reverse and raise and reset the concave scraper 221, and then the gear plate 217 will be engaged with the first tooth block 215 again to drive the filter screen 211 to rotate. S3, forward rotation monitoring: In step S2, each time the filter screen cover 211 is driven to the left end by the threaded cylinder 206, the pushing rod 207 will squeeze the arc guide plate 106 on the left side, and the monitoring protection mechanism 2 as a whole will rotate clockwise for a distance under the limit of the arc sliding plate 201 by utilizing the guiding effect of the arc guide plate 106. At this time, the reciprocating screw rod 205 is inclined, causing the moving track of the filter screen cover 211 to change and increase the monitoring range. After the left arc guide plate 106 is squeezed, the right end of the reciprocating screw rod 205 will be ready to rotate clockwise for a distance. A curved guide plate 106 on the right overlaps, and when the filter screen cover 211 is driven to move right, the pushing rod 207 will squeeze the curved guide plate 106 on the right and rotate the monitoring protection mechanism 2 clockwise for a distance again. The staggered arrangement of the curved guide plates 106 on both sides allows the filter screen cover 211 to continuously revolve to increase the monitoring range. After the pushing rod 207 is squeezed by the curved guide plate 106 at the bottom middle, the reciprocating screw rod 205 is in a vertical state, and the filter screen cover 211 can also be driven to move up and down, and then go to step S4; S4, monitoring range flipping: after the reciprocating screw rod 205 is in a vertical state, the filter screen cover 211 will directly contact and squeeze the first inclined plate 108 when it moves upward again. After the first inclined plate 108 is squeezed, it will drive the entire rotating ring 103 and the second inclined plate 109 and the tooth group 104 on the surface to rotate clockwise. Since the first gear cylinder 107 and the tooth group 104 are meshed, the rotating rod 105 drives the plurality of arc guide plates 106 to flip toward the opposite side, and then go to step S5; S5, reverse rotation monitoring: after several arc guide plates 106 are flipped over, the filter screen cover 211 continues to rise, and when the filter screen cover 211 rises to the top, the pushing rod 207 contacts the reverse guide seat 110 and squeezes it, driving the entire monitoring and protection mechanism 2 to rotate counterclockwise for a distance. At this time, the reciprocating movement of the filter screen cover 211 again enables the pushing rod 207 to use the reverse staggered setting of the arc guide plates 106 on both sides to drive the entire monitoring and protection mechanism 2 to rotate counterclockwise and reset. After the pushing rod 207 is squeezed by the arc guide plate 106 on the upper right side, the entire reciprocating screw rod 205 rotates to a horizontal state. When the pushing rod 207 moves to the left again, it will squeeze the second inclined plate 109, driving the entire circular rotating ring 103, the first inclined plate 108 and several tooth groups 104 to rotate counterclockwise, driving the arc guide plates 106 on both sides to flip again. After the pushing rod 207 moves to the left again, the monitoring and protection mechanism 2 can be rotated clockwise as a whole for monitoring.

[0025] The above-mentioned chemical safety management alarm method is implemented by the following structure: Please refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7, showing the overall structure of the rotary guide mechanism 1, the rotary guide mechanism 1 includes a circular chassis 101, the surface of the circular chassis 101 is installed with a monitoring and protection mechanism 2, the rear part of the inner cavity of the circular chassis 101 is provided with an annular sliding groove 102, the inner side of the annular sliding groove 102 is slidably installed with a circular rotating ring 103, the circular rotating ring 103 and the annular sliding groove 102 are interference fit with each other, have a large friction force and will not rotate easily, both sides of the surface of the circular rotating ring 103 are installed with tooth groups 104, and the tooth groups 104 are provided with a plurality of them, both sides of the inner cavity of the circular chassis 101 are rotatably connected with a rotating rod 105 through a bearing member, and the rotating rod 105 is rotatably connected with the circular chassis 101 through a damping bearing, There are several rotating rods 105, and the opposite ends of the rotating rods 105 on both sides are fixedly connected with arc guide plates 106, and the arc guide plates 106 on both sides are staggered. The surface of the rotating rod 105 is fixedly connected with a first gear cylinder 107 meshing with the tooth group 104, the bottom of the inner cavity of the circular rotating ring 103 is fixedly connected with a first inclined plate 108, and the right side of the inner cavity of the circular rotating ring 103 is fixedly connected with a second inclined plate 109, and the upper side of the rear part of the inner cavity of the circular chassis 101 is fixedly connected with a reverse guide seat 110, and the edge side of the circular chassis 101 is provided with a side slide groove 112, and the rear part of the circular chassis 101 is fixedly connected with a U-shaped mounting frame 111 through a fixing plate, and there are several U-shaped mounting frames 111.

[0026] Please refer to Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12, showing the overall structure of the monitoring and protection mechanism 2, the monitoring and protection mechanism 2 includes two arc-shaped sliding plates 201, the two arc-shaped sliding plates 201 are slidably installed on both sides of the inner cavity of the side slide groove 112, the arc-shaped sliding plates 201 and the side slide groove 112 are interference fit with each other, have large friction and will not rotate easily, the upper and lower parts between the surfaces of the two arc-shaped sliding plates 201 are respectively fixedly connected with the first guide frame 202 and the second guide frame 222 through fixed blocks, the left side between the first guide frame 202 and the second guide frame 222 is fixedly connected with a cross-connecting plate 204, the surface of the right arc-shaped sliding plate 201 is fixedly connected with a motor 203 through a bracket, and the motor The motor 203 is a servo motor, the output shaft of the motor 203 is fixedly connected to a reciprocating screw 205 through a coupling, and the left end of the reciprocating screw 205 is rotatably connected to the right side of the cross-connecting plate 204 through a bearing, the surface of the reciprocating screw 205 is threadedly connected to a threaded barrel 206, the surface of the first guide frame 202 is slidably mounted with a sliding sleeve frame 208, and the bottom of the sliding sleeve frame 208 is fixedly connected to the threaded barrel 206 through a fixed block, the rear part of the threaded barrel 206 is fixedly connected to a pushing round rod 207 used in conjunction with the arc guide plate 106, the first inclined plate 108, the second inclined plate 109 and the reverse guide seat 110 through a fixed block, and the surface of the sliding sleeve frame 208 is fixedly connected to the arc guide plate 106, the first inclined plate 108, the second inclined plate 109 and the reverse guide seat 110 through a fixed block. The fixed block is fixedly connected with a bearing sleeve 209, and the inner side of the bearing sleeve 209 is rotatably connected with a threading barrel 210 through a bearing member. The surface of the threading barrel 210 and the bottom of the bearing sleeve 209 are fixedly connected with a filter screen cover 211, and the bottom end of the threading barrel 210 and the inner side of the filter screen cover 211 are fixedly connected with a rectangular connecting frame 212, and the inner side of the rectangular connecting frame 212 is fixedly connected with a gas detector 213. The model of the gas detector 213 is KP826 multiple toxic gas detector. Both sides of the bearing sleeve 209 are fixedly connected with inner arc scraping plates 214, and the two inner arc scraping plates 214 are respectively fitted with the two sides of the filter screen cover 211. The second guide The surface of the frame 222 is fixedly connected with the first tooth block 215, and the two sides of the rear part of the second guide frame 222 are fixedly connected with the second tooth block 216. The bottom of the filter screen cover 211 is rotatably connected with the gear plate 217 meshing with the first tooth block 215 through a bearing member. The bottom of the sliding sleeve frame 208 is rotatably connected with the threaded rod 218 through a bearing member, and the bottom end of the threaded rod 218 is fixedly connected with the second gear cylinder 219 meshing with the second tooth block 216. The surface of the threaded rod 218 is threadedly connected with the arc rod 220, and both ends of the arc rod 220 are fixedly connected with the concave scraper 221, and the concave scraper 221 is sleeved on the surface of the inner arc scraping plate 214.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A chemical safety management alarm method, characterized in that: The specific steps include: S1. Equipment installation: Before use, first use the U-shaped mounting frame (111) in the rotary guide mechanism (1) to mount the entire equipment on the wall surface; S2, continuous gas monitoring: starting the gas detector (213) in the monitoring and protection mechanism (2) to monitor the indoor air; S3, forward rotation monitoring: utilizing the contact between the pushing rod (207) and the arc-shaped guide plate (106) each time when the pushing rod (207) moves to drive the monitoring and protection mechanism (2) to rotate clockwise as a whole; S4, monitoring range flipping: when the reciprocating screw rod (205) is in a vertical state, the arc-shaped guide plate (106) is flipped using the first inclined plate (108); S5, reverse rotation monitoring: after the arc-shaped guide plate (106) is turned over, the contact between the pushing rod (207) and the arc-shaped guide plate (106) is coordinated to drive the monitoring and protection mechanism (2) to rotate in the reverse direction as a whole.

2. A chemical safety management alarm method according to claim 1, characterized in that: The rotary guide mechanism (1) comprises a circular chassis (101), and a monitoring and protection mechanism (2) is installed on the surface of the circular chassis (101).

3. A chemical safety management alarm method according to claim 2, characterized in that: An annular sliding groove (102) is provided at the rear of the inner cavity of the circular chassis (101), a circular rotating ring (103) is slidably mounted inside the annular sliding groove (102), gear groups (104) are mounted on both sides of the surface of the circular rotating ring (103), and a plurality of gear groups (104) are provided. Rotating rods (105) are rotatably connected to both sides of the inner cavity of the circular chassis (101) via bearings, and a plurality of rotating rods (105) are provided. The opposite ends of the rotating rods (105) on both sides are fixedly connected to arc guide plates (106), and the arc guide plates (106) on both sides are staggered. The surface of the rotating rod (105) is fixedly connected to a first gear cylinder (107) meshing with the gear group (104).

4. A chemical safety management alarm method according to claim 3, characterized in that: A first inclined panel (108) is fixedly connected to the bottom of the inner cavity of the circular rotating ring (103), a second inclined panel (109) is fixedly connected to the right side of the inner cavity of the circular rotating ring (103), a reverse guide seat (110) is fixedly connected to the upper side of the rear portion of the inner cavity of the circular chassis (101), a side slide groove (112) is provided on the edge side of the circular chassis (101), and a U-shaped mounting frame (111) is fixedly connected to the rear portion of the circular chassis (101) via a fixing plate, and a plurality of U-shaped mounting frames (111) are provided.

5. A chemical safety management alarm method according to claim 4, characterized in that: The monitoring and protection mechanism (2) comprises two arc-shaped sliding plates (201), the two arc-shaped sliding plates (201) are respectively slidably mounted on both sides of the inner cavity of the side slide groove (112), the upper and lower parts between the surfaces of the two arc-shaped sliding plates (201) are respectively fixedly connected to a first guide frame (202) and a second guide frame (222) via a fixing block, a cross-connecting plate (204) is fixedly connected to the left side between the first guide frame (202) and the second guide frame (222), the surface of the right arc-shaped sliding plate (201) is fixedly connected to a motor (203) via a bracket, the output shaft of the motor (203) is fixedly connected to a reciprocating screw (205) via a coupling, and the left end of the reciprocating screw (205) is rotationally connected to the right side of the cross-connecting plate (204) via a bearing member.

6. A chemical safety management alarm method according to claim 5, characterized in that: The surface of the reciprocating screw rod (205) is threadedly connected to a threaded barrel (206); the surface of the first guide frame (202) is slidably mounted with a sliding sleeve frame (208); the bottom of the sliding sleeve frame (208) is fixedly connected to the threaded barrel (206) via a fixing block; the rear of the threaded barrel (206) is fixedly connected to a pushing round rod (207) used in conjunction with the arc guide plate (106), the first inclined plate (108), the second inclined plate (109) and the reverse guide seat (110) via a fixing block.

7. A chemical safety management alarm method according to claim 6, characterized in that: The surface of the sliding sleeve frame (208) is fixedly connected to a bearing sleeve (209) via a fixing block, the inner side of the bearing sleeve (209) is rotatably connected to a threading tube (210) via a bearing member, the surface of the threading tube (210) is fixedly connected to a filter screen cover (211) below the bearing sleeve (209), the bottom end of the threading tube (210) is fixedly connected to a rectangular connecting frame (212) on the inner side of the filter screen cover (211), and the inner side of the rectangular connecting frame (212) is fixedly connected to a gas detector (213).

8. A chemical safety management alarm method according to claim 7, characterized in that: Inner arc scraping plates (214) are fixedly connected to both sides of the bearing sleeve (209), and the two inner arc scraping plates (214) are respectively fitted to both sides of the filter screen cover (211).

9. A chemical safety management alarm method according to claim 8, characterized in that: The surface of the second guide frame (222) is fixedly connected to a first tooth block (215), both sides of the rear portion of the second guide frame (222) are fixedly connected to second tooth blocks (216), and the bottom of the filter screen cover (211) is rotatably connected to a gear plate (217) meshing with the first tooth block (215) via a bearing.

10. A chemical safety management alarm method according to claim 9, characterized in that: The bottom of the sliding sleeve frame (208) is rotatably connected to a threaded rod (218) via a bearing member, and the bottom end of the threaded rod (218) is fixedly connected to a second gear cylinder (219) meshing with a second tooth block (216), and the surface of the threaded rod (218) is threadedly connected to an arc rod (220), and both ends of the arc rod (220) are fixedly connected to a concave scraper (221), and the concave scraper (221) is sleeved on the surface of the inner arc scraper plate (214).

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