A working environment monitoring device for occupational health testing in the petrochemical industry

Abstract

This invention belongs to the technical field of monitoring devices and discloses a working environment monitoring device for occupational health testing in the petrochemical industry. It includes a supporting shell and a turbine. A support plate is fixedly connected to the inner cavity of the supporting shell. A power motor and a telescopic mechanism are fixedly connected to the top of the support plate. A worm gear is fixedly connected to the output shaft end of the power motor. A round shaft is movably engaged within the inner cavity of the support plate. This invention, through the cooperation between the round shaft, worm gear, elastic telescopic rod, and support frame, enables the device to have good stability when monitoring the outdoor environment. The rotation of the turbine causes the second gear to rotate, and then, under the tension of the first tension spring, the locking block moves away from the long block, ultimately engaging with the slot, thereby fixing the support frame. At this point, one end of the bottom of the support frame is in contact with the ground.

Description

Technical Field

[0001] This invention belongs to the field of monitoring device technology, specifically a working environment monitoring device for occupational health testing in the petrochemical industry. Background Technology

[0002] With social development, environmental pollution has become increasingly serious. For example, during the oil extraction and construction process, dust and noise pollution are easily generated, which seriously affect the nearby living environment. Therefore, it is necessary to monitor the environment of the construction site during the oil extraction and construction process to ensure the safety of construction personnel and reduce environmental pollution.

[0003] Current pollution monitoring devices are often installed on support frames or high walls. To facilitate the movement of monitoring devices, they are often mounted on support frames with bases to monitor the surrounding environment. However, because the support bases are usually not very large for easy movement, the support frames often tip over due to strong winds when monitoring the environment outdoors for extended periods. This makes monitoring the surrounding environment inconvenient. Therefore, this paper proposes a working environment monitoring device for occupational health testing in the petrochemical industry to solve the problems mentioned in the background. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a working environment monitoring device for occupational health testing in the petrochemical industry, which solves the problem that the support frame for installing the monitoring device is prone to tipping over.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a working environment monitoring device for occupational health testing in the petrochemical industry, comprising a supporting shell and a turbine. A supporting plate is fixedly connected to the inner cavity of the supporting shell. A power motor and a telescopic mechanism are fixedly connected to the top of the supporting plate. A worm gear is fixedly connected to the output shaft end of the power motor. A round shaft is movably engaged within the inner cavity of the supporting plate. A first gear tooth is fixedly connected to the outer surface of the round shaft above the supporting plate. A second gear is movably connected to the top of the supporting plate away from the worm gear. A first spring is fixedly connected to the outer surface of the round shaft below the supporting plate. A connecting ring is fixedly connected to the end of the first spring away from the circular shaft. Elastic telescopic rods are fixedly connected to both ends of the connecting ring. A support frame is connected to the ball joint at the ends of the elastic telescopic rods that are far apart from each other. A long block is movably engaged in the middle of the inner cavity of the support housing. Connecting rods are hinged to the front and rear ends of both sides of the long block. A locking block is hinged to the end of the connecting rod away from the long block. A first tension spring is fixedly connected to the inner cavity of the locking block on the side away from the long block. Slots are provided on both sides of the support frame. Fixing mechanisms are movably connected to the inner cavities of the front and rear ends of both sides of the support housing. Sliding grooves are provided on the front and rear ends of both sides of the support housing.

[0006] Preferably, the fixing mechanism includes four rollers, which are movably connected to the inner cavities around the support housing. Friction plates are movably engaged in the inner cavities around the support housing, and a second tension spring is sleeved on the outer surface of the friction plates.

[0007] Preferably, the telescopic mechanism includes a protective cylinder, the bottom of which is fixedly connected to a support plate. A threaded rod is threadedly connected to the inner cavity of the protective cylinder. A sleeve block is fitted onto the top of the protective cylinder. A splined shaft is movably engaged within the inner cavity of the threaded rod. An environmental detector body and a bellows are fixedly connected to the top of the threaded rod. A limit rod is fixedly connected to the top of the support plate at an equal angle. A top cover is fixedly connected to the top of the environmental detector body. A spring is fitted onto the outer surface of the limit rod. A take-up roller is movably connected to the inner cavity of the top of the sleeve block at an equal angle. A pull rope is wound around the outer surface of the middle part of the take-up roller. A second spring is fixedly connected to the outer surface of the take-up roller near the splined shaft.

[0008] Preferably, the two ends of the worm are movably connected to the inner cavity of the support plate, the power motor is meshed with the turbine, the turbine is sleeved on the bottom of the outer surface of the spline shaft, the turbine is located above the first gear tooth and both are meshed with the second gear.

[0009] Preferably, the outer surface of the middle part of the circular shaft is located in the inner cavity of the connecting ring, the two ends of the support frame away from the power motor are movably connected to the side wall of the support housing, and the thickness of the two ends of the support frame is greater than the thickness of other parts of the support frame.

[0010] Preferably, two sets of cylinders are respectively provided at both ends of the support frame, the slot is opened in the slot on the side away from the power motor, the inner cavity of the slide is movably connected to the outer surface of the cylinder, and the end of the locking block away from the power motor passes through the support shell and extends into the interior of the slide, and the locking block and the slot are engaged.

[0011] Preferably, both the locking block and the connecting rod are movably connected inside the support housing, and the end of the first tension spring away from the long block is fixedly connected to the support housing.

[0012] Preferably, the friction plate and the support frame are at the same height and are pressed together. The two ends of the second tension spring are fixedly connected to the roller and the support housing, respectively. The side of the friction plate away from the support frame is pressed together with the roller.

[0013] Preferably, the top of the limiting rod is fixedly connected to the top cover, the corrugated tube is sleeved on the outer surface of the environmental detector body and its top is fixedly connected to the top cover, and the top and bottom of the spring are fixedly connected to the top cover and the threaded rod, respectively.

[0014] Preferably, the top of the pull rope passes through the protective cylinder, the threaded rod, and the corrugated tube and is fixedly connected to one end of the top of the corrugated tube. The pull rope is movably connected to the bottom end of the protective cylinder, the threaded rod, and the corrugated tube. The end of the second spring away from the winding roller is fixedly connected to the protective cylinder. One end of the bottom of the sleeve block is movably engaged with the inner cavity at the bottom of the protective cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention utilizes the cooperation between structures such as a round shaft, worm gear, elastic telescopic rod, and support frame to achieve good stability when monitoring outdoor environments. The rotation of the worm gear causes the second gear to rotate, which in turn drives the round shaft, the first spring, and the connecting ring to rotate. This causes the end of the elastic telescopic rod connected to the support frame to rotate around the round shaft, extending the length of the elastic telescopic rod. Simultaneously, the cylinder on the support frame moves outward along the slide groove and tilts. At the same time, the cylinder on the side of the support frame away from the long block will press against the locking block. Then, under the action of the tension of the first tension spring, the locking block moves away from the long block and finally engages with the inside of the locking groove, thereby fixing the support frame. At this point, one end of the bottom of the support frame is in contact with the ground.

[0017] The present invention achieves good fixation of the device through the cooperation between the roller, support frame, friction plate and second tension spring. When the support frame moves away from the end of the long block, the support frame will also squeeze the friction plate, causing the friction plate to move closer to the roller and come into contact with the roller. At this time, the roller is fixed, thereby preventing the device from sliding.

[0018] This invention utilizes the cooperation of structures such as a threaded rod, bellows, pull rope, and take-up roller to position the device at a suitable height for environmental measurement. The operation of the power motor causes the worm gear to rotate, which in turn drives the threaded rod to rotate, causing the spline shaft to rotate. This rotation of the threaded rod leads to its upward movement, at which point the environmental detector body detaches from the protective cylinder. During the upward movement of the threaded rod, the tension of the pull rope causes one end of the bellows to move downward, exposing the environmental detector body located inside the bellows. This position allows the environmental detector body to be positioned at a suitable height for environmental monitoring. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a side sectional view of the support frame of the present invention and an enlarged view thereof;

[0021] Figure 3 This is a front cross-sectional view of the present invention;

[0022] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle;

[0024] Figure 6 This is a side cross-sectional view of the roller of the present invention and an enlarged view thereof;

[0025] Figure 7 This is a schematic diagram of the top cross-sectional structure of the first spring of the present invention;

[0026] Figure 8 This is an exploded view of the worm gear in this invention;

[0027] Figure 9 This is an exploded view of the elastic telescopic rod of the present invention;

[0028] Figure 10 This is an exploded view of the bellows section of the present invention.

[0029] In the diagram: 1. Support shell; 2. Support plate; 3. Power motor; 4. Worm gear; 5. Turbine; 6. First gear tooth; 7. Second gear; 8. Connecting ring; 9. Elastic telescopic rod; 10. Round shaft; 11. First spring; 12. Support frame; 13. Locking block; 14. First tension spring; 15. Long block; 16. Locking groove; 17. Slide groove; 18. Connecting rod; 19. Fixing mechanism; 191. Roller; 192. Friction plate; 193. Second tension spring; 20. Telescopic mechanism; 201. Protective cylinder; 202. Threaded rod; 203. Environmental detector body; 204. Limiting rod; 205. Top cover; 206. Bellows; 207. Winding roller; 208. Pull rope; 209. Second spring; 2010. Splined shaft; 2011. Spring; 2012. Sleeve block. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1 to 10As shown, this invention provides a working environment monitoring device for occupational health testing in the petrochemical industry, including a supporting shell 1 and a turbine 5. A supporting plate 2 is fixedly connected to the inner cavity of the supporting shell 1. A power motor 3 and a telescopic mechanism 20 are fixedly connected to the top of the supporting plate 2. A worm gear 4 is fixedly connected to the output shaft end of the power motor 3. A round shaft 10 is movably engaged in the inner cavity of the supporting plate 2. A first gear 6 is fixedly connected to the outer surface of the round shaft 10 above the supporting plate 2. A second gear 7 is movably connected to the side of the top of the supporting plate 2 away from the worm gear 4. A first spring 11 is fixedly connected to the outer surface of the round shaft 10 below the supporting plate 2. A connecting ring 8 is fixedly connected to the end of the first spring 11 away from the round shaft 10. Elastic telescopic rods 9 are fixedly connected to both ends of the connecting ring 8. A support frame 12 is connected to the ball shaft at the ends of the elastic telescopic rods 9 away from each other. A long block 15 is movably engaged in the middle of the inner cavity of the supporting shell 1. Connecting rods 18 are hinged to the front and rear ends of both sides of the long block 15. A locking block 13 is hinged to the end of the connecting rod 18 away from the long block 15. The inner cavity of the locking block 13 away from the long block 15 is fixedly connected to the first tension spring 14. The support frame 12 has a locking groove 16 on both sides. The inner cavities of the front and rear ends of both sides of the support shell 1 are movably connected to the fixing mechanism 19. The front and rear ends of both sides of the support shell 1 have a sliding groove 17. The rotation of the turbine 5 causes the second gear 7 to rotate, thereby driving the round shaft 10, the first spring 11 and the connecting ring 8 to rotate. This causes the end of the elastic telescopic rod 9 connected to the support frame 12 to rotate around the round shaft 10. At this time, the length of the elastic telescopic rod 9 is extended. At the same time, the cylinder on the support frame 12 will move outward along the sliding groove 17 and tilt. At the same time, the cylinder on the side of the support frame 12 away from the long block 15 will squeeze the locking block 13. Then, under the action of the tension of the first tension spring 14, the locking block 13 moves to the side away from the long block 15. Finally, the locking block 13 is locked into the inside of the locking groove 16, thereby fixing the support frame 12. At this time, one end of the bottom of the support frame 12 is in contact with the ground.

[0032] It is worth noting that the operator can step on the long block 15 downwards, which will cause the long block 15 to move downwards. This will cause the long block 15 to pull the locking block 13 to move closer to the long block 15 via the connecting rod 18, and cause the locking block 13 to release its engagement with the locking slot 16, thus facilitating the subsequent reset of the support frame 12.

[0033] like Figure 1 , Figure 6 and Figure 7As shown, the fixing mechanism 19 includes four rollers 191, which are movably connected to the inner cavities around the support housing 1. Friction plates 192 are movably engaged in the inner cavities around the support housing 1. A second tension spring 193 is sleeved on the outer surface of the friction plate 192. The friction plate 192 and the support frame 12 are at the same height and are pressed together. The two ends of the second tension spring 193 are fixedly connected to the rollers 191 and the support housing 1, respectively. The side of the friction plate 192 away from the support frame 12 is pressed together with the rollers 191. When the support frame 12 moves away from the end of the long block 15, the support frame 12 will also press the friction plate 192, causing the friction plate 192 to move towards the side closer to the rollers 191 and come into contact with the rollers 191. At this time, the rollers 191 are fixed, thereby preventing the device from sliding.

[0034] It is worth noting that a handle is also provided on one side of the top of the supporting shell 1 to facilitate people's movement.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 10 As shown, the telescopic mechanism 20 includes a protective cylinder 201. The bottom of the protective cylinder 201 is fixedly connected to the support plate 2. A threaded rod 202 is threadedly connected to the inner cavity of the protective cylinder 201. A sleeve block 2012 is sleeved on the top of the protective cylinder 201. A spline shaft 2010 is movably engaged in the inner cavity of the threaded rod 202. An environmental detector body 203 and a bellows 206 are fixedly connected to the top of the threaded rod 202. A limit rod 204 is fixedly connected to the top of the support plate 2 at equal angles. A top cover 205 is fixedly connected to the top of the environmental detector body 203. A spring 2011 is sleeved on the outer surface of the limit rod 204. A take-up roller 207 is movably connected to the inner cavity of the top of the sleeve block 2012 at equal angles. A pull rope 208 is wound around the outer surface of the middle part of the take-up roller 207. A second spring 209 is fixedly connected to the outer surface of 07 near the spline shaft 2010. The operation of the power motor 3 will cause the worm gear 4 to rotate, which will cause the turbine 5 to drive the threaded rod 202 to rotate, thereby causing the spline shaft 2010 to rotate, and then causing the threaded rod 202 to rotate and move upward. At this time, the environmental detector body 203 will be separated from the inside of the protective cylinder 201. During the upward movement of the threaded rod 202, the tension of the pull rope 208 will also cause one end of the top of the bellows 206 to move downward, thereby exposing the environmental detector body 203 located inside the bellows 206, thus making the environmental detector body 203 reach the moving height, which is convenient for the device to monitor the environment.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the two ends of the worm gear 4 are movably connected to the inner cavity of the support plate 2, the power motor 3 is meshed with the turbine 5, the turbine 5 is sleeved on the bottom of the outer surface of the spline shaft 2010, the turbine 5 is located above the first gear tooth 6 and both are meshed with the second gear 7, the outer surface of the middle part of the round shaft 10 is located in the inner cavity of the connecting ring 8, the two ends of the support frame 12 away from the power motor 3 are movably connected to the side wall of the support housing 1, and the thickness of the two ends of the support frame 12 is greater than the thickness of the other parts of the support frame 12; through the design of the support frame 12, it is easier for the end of the support frame 12 away from the long block 15 to contact the ground;

[0037] It is worth noting that the end of the support frame 12 away from the long block 15 only needs to be in contact with the ground; it is not necessary to support the entire device.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, two sets of cylinders are respectively provided at both ends of the support frame 12. The slot 16 is opened in the slot 16 on the side away from the power motor 3. The inner cavity of the slide groove 17 is movably connected to the outer surface of the cylinder. The end of the locking block 13 away from the power motor 3 passes through the support shell 1 and extends into the interior of the slide groove 17. The locking block 13 and the slot 16 are engaged. The locking block 13 and the connecting rod 18 are both movably connected inside the support shell 1. The end of the first tension spring 14 away from the long block 15 is fixedly connected to the support shell 1. Through the design of the first spring 11, since the number of rotations required for the threaded rod 202 to rise is greater than the number of rotations required for the elastic telescopic rod 9, the first spring 11 plays a role in slowing down the rotation of the elastic telescopic rod 9. At the same time, when the number of rotations of the first gear tooth 6 and the round shaft 10 increases, the force of the rotation of the elastic telescopic rod 9 is greater.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 10As shown, the top of the limiting rod 204 is fixedly connected to the top cover 205. The bellows 206 is sleeved on the outer surface of the environmental detector body 203 and its top is fixedly connected to the top cover 205. The top and bottom of the spring 2011 are fixedly connected to the top cover 205 and the threaded rod 202, respectively. The top of the pull rope 208 passes through the protective cylinder 201, the threaded rod 202 and the bellows 206 and is fixedly connected to one end of the top of the bellows 206. The pull rope 208 is movably connected to the protective cylinder 201, the threaded rod 202 and one end of the bottom of the bellows 206. The end of the second spring 209 away from the winding roller 207 is fixedly connected to the protective cylinder 201. One end of the bottom of the sleeve block 2012 is movably engaged with the inner cavity of the bottom of the protective cylinder 201. The design of the bellows 206 plays a protective role for the environmental detector body 203 when it needs to be used. At the same time, the design of the spring 2011 plays a role in the subsequent reset of the bellows 206.

[0040] It is worth noting that when the bellows 206 is just opened, the second spring 209 is compressed to its limit. At the same time, the compression of the second spring 209 also facilitates the subsequent winding of the pull rope 208.

[0041] It is worth noting that the diameter of the top end of the protective cylinder 201 and the threaded rod 202 is larger than the diameter of their middle and lower parts. Therefore, when the threaded rod 202 rotates and drives the pull rope 208 to rotate, although the pull rope 208 will be wrapped around the outside of the threaded rod 202, it will not come into contact with the surface of the threaded rod 202, and thus will not affect the upward movement of the threaded rod 202.

[0042] Working principle and usage process of this invention:

[0043] First, the operator runs the power motor 3, which causes the worm gear 4 to rotate, thereby causing the turbine 5 to drive the threaded rod 202 to rotate, which in turn causes the spline shaft 2010 to rotate. This causes the threaded rod 202 to rotate and move upward. At this time, the environmental detector body 203 will detach from the protective cylinder 201. During the upward movement of the threaded rod 202, the tension of the pull rope 208 will also cause one end of the top of the bellows 206 to move downward, thereby exposing the environmental detector body 203 located inside the bellows 206, thus facilitating the device's monitoring of the environment.

[0044] Simultaneously, the rotation of the turbine 5 will also cause the second gear 7 to rotate, thereby driving the round shaft 10, the first spring 11, and the connecting ring 8 to rotate. This will cause one end of the elastic telescopic rod 9 connected to the support frame 12 to rotate around the round shaft 10. At this time, the length of the elastic telescopic rod 9 will extend, and the cylinder on the support frame 12 will move outward along the slide groove 17 and tilt. At the same time, the cylinder on the side of the support frame 12 away from the long block 15 will press the locking block 13. Then, under the action of the tension of the first tension spring 14, the locking block 13 will move away from the long block 15. Finally, the locking block 13 will be locked into the inside of the locking groove 16, thereby fixing the support frame 12. At this time, one end of the bottom of the support frame 12 is in contact with the ground, completing the operation.

[0045] When the support frame 12 moves away from the end of the long block 15, the support frame 12 will also squeeze the friction plate 192, causing the friction plate 192 to move towards the side closer to the roller 191 and come into contact with and squeeze the roller 191. At this time, the roller 191 is fixed, thereby preventing the device from sliding.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A working environment monitoring device for occupational health testing in the petrochemical industry, comprising a supporting shell (1) and a turbine (5), characterized in that: A support plate (2) is fixedly connected to the inner cavity of the supporting shell (1). A power motor (3) and a telescopic mechanism (20) are fixedly connected to the top of the support plate (2). A worm gear (4) is fixedly connected to the output shaft end of the power motor (3). A round shaft (10) is movably engaged in the inner cavity of the support plate (2). A first gear tooth (6) is fixedly connected to the outer surface of the round shaft (10) above the support plate (2). A second gear (7) is movably connected to the side of the top of the support plate (2) away from the worm gear (4). A first spring (11) is fixedly connected to the outer surface of the round shaft (10) below the support plate (2). A connecting ring (8) is fixedly connected to the end of the first spring (11) away from the round shaft (10). Both ends of the support shell (1) are fixedly connected with elastic telescopic rods (9). The ball shaft of the elastic telescopic rods (9) that are far apart from each other is connected to a support frame (12). The middle of the inner cavity of the support shell (1) is movably locked with a long block (15). The front and rear ends of both sides of the long block (15) are hinged with connecting rods (18). The end of the connecting rod (18) that is far away from the long block (15) is hinged with a locking block (13). The inner cavity of the locking block (13) that is far away from the long block (15) is fixedly connected with a first tension spring (14). The two sides of the support frame (12) are provided with locking grooves (16). The inner cavities of the front and rear ends of both sides of the support shell (1) are movably connected with fixing mechanisms (19). The front and rear ends of both sides of the support shell (1) are provided with sliding grooves (17). The support frame (12) has two sets of cylinders at its two ends, and the inner cavity of the slide groove (17) is movably connected to the outer surface of the cylinders. The cylinder on the support frame (12) will move outward along the groove (17) and tilt.

2. The working environment monitoring device for occupational health testing in the petrochemical industry according to claim 1, characterized in that: The fixing mechanism (19) includes four rollers (191) that are movably connected to the inner cavity around the support housing (1). Friction plates (192) are movably engaged in the inner cavity around the support housing (1). A second tension spring (193) is sleeved on the outer surface of the friction plate (192).

3. The working environment monitoring device for occupational health testing in the petrochemical industry according to claim 1, characterized in that: The telescopic mechanism (20) includes a protective cylinder (201), the bottom of which is fixedly connected to the support plate (2). A threaded rod (202) is threadedly connected to the inner cavity of the protective cylinder (201). A sleeve block (2012) is sleeved on the top of the protective cylinder (201). A spline shaft (2010) is movably engaged in the inner cavity of the threaded rod (202). An environmental detector body (203) and a bellows (206) are fixedly connected to the top of the threaded rod (202). The top of the support plate (2) is... A limiting rod (204) is fixedly connected at an equal angle in a ring. A top cover (205) is fixedly connected to the top of the environmental detector body (203). A spring (2011) is sleeved on the outer surface of the limiting rod (204). A winding roller (207) is movably connected at an equal angle in a ring to the inner cavity of the top of the sleeve block (2012). A pull rope (208) is wound around the outer surface of the middle part of the winding roller (207). A second spring (209) is fixedly connected to the side of the outer surface of the winding roller (207) near the spline shaft (2010).

4. The working environment monitoring device for occupational health testing in the petrochemical industry according to claim 1, characterized in that: The two ends of the worm (4) are movably connected to the inner cavity of the support plate (2), the power motor (3) is meshed with the turbine (5), the turbine (5) is sleeved on the bottom of the outer surface of the spline shaft (2010), the turbine (5) is located above the first gear tooth (6) and both are meshed with the second gear (7).

5. The working environment monitoring device for occupational health testing in the petrochemical industry according to claim 1, characterized in that: The outer surface of the middle part of the circular shaft (10) is located in the inner cavity of the connecting ring (8). The two ends of the support frame (12) away from the power motor (3) are movably connected to the side wall of the support shell (1), and the thickness of the two ends of the support frame (12) is greater than the thickness of other parts of the support frame (12).

6. The working environment monitoring device for occupational health testing in the petrochemical industry according to claim 1, characterized in that: The slot (16) is located inside the slot (16) on the side away from the power motor (3). The end of the block (13) away from the power motor (3) passes through the support shell (1) and extends into the interior of the slide (17). The block (13) and the slot (16) are engaged and locked together.

7. The working environment monitoring device for occupational health testing in the petrochemical industry according to claim 1, characterized in that: The locking block (13) and the connecting rod (18) are both movably connected inside the supporting shell (1), and the end of the first tension spring (14) away from the long block (15) is fixedly connected to the supporting shell (1).

8. The working environment monitoring device for occupational health testing in the petrochemical industry according to claim 2, characterized in that: The friction plate (192) and the support frame (12) are at the same height and are pressed together. The two ends of the second tension spring (193) are fixedly connected to the roller (191) and the support shell (1) respectively. The side of the friction plate (192) away from the support frame (12) is pressed together with the roller (191).

9. The working environment monitoring device for occupational health testing in the petrochemical industry according to claim 3, characterized in that: The top of the limiting rod (204) is fixedly connected to the top cover (205), the corrugated tube (206) is sleeved on the outer surface of the environmental detector body (203) and the top is fixedly connected to the top cover (205), and the top and bottom of the spring (2011) are fixedly connected to the top cover (205) and the threaded rod (202) respectively.

10. The working environment monitoring device for occupational health testing in the petrochemical industry according to claim 3, characterized in that: The top of the pull rope (208) passes through the protective cylinder (201), the threaded rod (202) and the corrugated tube (206) and is fixedly connected to one end of the top of the corrugated tube (206). The pull rope (208) is movably connected to one end of the bottom of the protective cylinder (201), the threaded rod (202) and the corrugated tube (206). The end of the second spring (209) away from the winding roller (207) is fixedly connected to the protective cylinder (201). One end of the bottom of the sleeve block (2012) is movably engaged with the inner cavity of the bottom of the protective cylinder (201).

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