A vehicle-mounted air quality detection device

Abstract

The present invention belongs to the technical field of air quality detection equipment, and particularly relates to a vehicle-mounted air quality detection equipment, which includes a device body. The device body is provided with a hollow telescopic rod. The hollow telescopic rod is provided with a bottom plate. The hollow telescopic rod is provided with an airbag. The airbag is provided with a first air pipe. The first air pipe is provided with a six-way joint. The bottom plate is provided with an inflation mechanism. The inflation mechanism is provided with a three-way joint. A second air pipe is provided between the three-way joint and the six-way joint. The second air pipe is provided with a first one-way conduction valve. The three-way joint is connected with a third air pipe. The third air pipe is provided with a second one-way conduction valve. The six-way joint is provided with a fourth air pipe. The fourth air pipe is provided with a switch valve; this vehicle-mounted air quality detection equipment can buffer the device body to prevent the device body from being violently shaken. At the same time, this vehicle-mounted air quality detection equipment can adjust the height of the device body. In addition, this vehicle-mounted air quality detection equipment can be quickly detached from the vehicle body.

Description

Technical Field

[0001] The present invention belongs to the technical field of air quality detection equipment, and particularly relates to a vehicle-mounted air quality detection equipment. Background Art

[0002] In recent years, environmental pollution problems have been plaguing people's lives. In particular, the problem of air pollution has been intensifying, seriously threatening people's lives and health. The grid monitoring system, due to its small equipment size and low manufacturing cost, can effectively improve the work efficiency of haze control through scientific site layout, and can provide data and technical support for environmental supervision departments. Therefore, it has become the new mainstream of precise haze control.

[0003] However, due to various factors such as geographical location and climate, when some sudden pollution accidents occur, the monitoring equipment at fixed sites cannot timely monitor the ambient air quality at the accident site. Using an environmental monitoring vehicle equipped with a vehicle-mounted air quality detection equipment can enter the pollution site immediately, without being restricted by factors such as time, location, and climate, and has the functions of real-time collecting and analyzing environmental data and real-time transmitting video information, and can effectively conduct on-site rapid analysis and monitoring. However, the existing vehicle-mounted air quality detection equipment is directly fixed on the vehicle body of the environmental monitoring vehicle without being optimized in combination with the structural characteristics of the vehicle, and there are the following three deficiencies in actual use: First, during the vehicle driving process, due to bumps and vibrations, the components in the air quality detection equipment are easily damaged, resulting in unstable operation. Second, the detection height of the air quality detection equipment cannot be adjusted up and down, and the detection height is not standard. Third, when encountering a detection area where the vehicle cannot enter, the air quality detection equipment cannot be quickly removed from the vehicle body and used separately in the detection area, which brings inconvenience to the use. In view of the above problems, we propose a vehicle-mounted air quality detection equipment. Summary of the Invention

[0004] The purpose of the present invention is to provide a vehicle-mounted air quality detection equipment to solve the problems existing in the background art.

[0005] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows:

[0006] A vehicle-mounted air quality detection device, including a device body. Four hollow telescopic rods are provided at the lower end of the device body and are distributed in a rectangle. The lower ends of the four hollow telescopic rods are fixedly connected to a bottom plate. Two rollers distributed left and right are rotatably connected to the rear side of the bottom plate. Two universal wheels are provided at the front side of the lower end of the bottom plate. An airbag is arranged inside the hollow telescopic rod. The lower end of the airbag is connected to a first air pipe. The ends of the four first air pipes are connected to a six-way joint fixedly connected to the bottom plate. An inflation mechanism is provided at the rear side of the upper end of the bottom plate. The lower end of the inflation mechanism is connected to a three-way joint. A second air pipe is connected between the three-way joint and the six-way joint. The second air pipe is provided with a first one-way conduction valve. The three-way joint is connected to a third air pipe. The third air pipe is provided with a second one-way conduction valve. The upper end of the six-way joint is connected to a fourth air pipe. The fourth air pipe is provided with a switch valve. A U-shaped frame is fixedly connected to the outside of the bottom plate. Lock holes are provided on both the left and right sides of the inner wall of the U-shaped frame. Step holes matching the lock holes are provided on both the left and right sides of the bottom plate. A first spring and a T-shaped lock bolt are sequentially assembled in the two step holes from the inside to the outside. One end of each of the two T-shaped lock bolts close to the first spring is connected to a wire. The wires are guided to the rear end of the bottom plate through a wire groove. The ends of the two wires are fixedly connected to a handle.

[0007] Adopting the technical solution of the present invention, in the initial state, the U-shaped frame is fixed on the vehicle body of the environmental monitoring vehicle. The bottom plate stays inside the U-shaped frame through two rollers and two universal wheels. The U-shaped frame can limit the left and right sides of the bottom plate. The two first springs push the two T-shaped lock bolts into the two lock holes of the U-shaped frame respectively in the natural state. The cooperation of the two lock holes and the two T-shaped lock bolts can limit the front and rear sides and the upper and lower sides of the bottom plate. In this way, the whole device is in a state of being fixed on the vehicle body.

[0008] The first one-way check valve can allow the air in the three-way joint to enter the second air tube, and at the same time can restrict the air in the second air tube from entering the three-way joint. The second one-way check valve can allow the air in the third air tube to enter the three-way joint, and can restrict the air in the three-way joint from entering the third air tube. When the user steps on the inflation mechanism with the foot, the inflation mechanism can inflate the second air tube through the three-way joint. When the user's foot is lifted, the air in the external environment can be sucked into the inflation mechanism through the third air tube. In this way, when the user continuously steps on the inflation mechanism, the inflation mechanism can continuously inflate the second air tube. The air entering the second air tube can be distributed to the four first air tubes through the six-way joint, and the four first air tubes can respectively fill the air into the four air bags. The four air bags will gradually expand during the inflation process. Under the guidance and support of the hollow telescopic rods, the four gradually expanding air bags can gradually lift the equipment body, so as to increase the height of the equipment body. When the user opens the switch valve, the air in the four air bags can be gradually discharged through the fourth air tube. During the gradual discharge process, the four air bags will gradually shrink, causing the height of the equipment body to gradually decrease, so as to lower the height of the equipment body. Through the above operations, the height of the equipment body can be adjusted so that the equipment body can reach the standard detection height. The adjustment process of the equipment body is simple and convenient, which is convenient for the user to use and has high practicability;

[0009] The four air bags cooperating with the four hollow telescopic rods can play a buffering role for the equipment body. The four air bags can absorb the bumps generated during the vehicle driving process, so that the equipment body will not be violently shaken, making the equipment body not easily damaged due to vibration and preventing the equipment body from running unstably;

[0010] When encountering a detection area where the vehicle cannot enter, the user pulls the handle backward, causing the handle to drive the two pull wires to move backward synchronously. Under the guiding action of the two wire grooves, the two pull wires will synchronously pull the two T-shaped lock bolts towards the middle, causing the two T-shaped lock bolts to respectively compress the two first springs and withdraw from the two lock holes. At this time, the bottom plate can be pulled out backward from the U-shaped frame, so that the equipment body can be quickly removed from the vehicle body and then enter the detection area alone for use, which brings convenience to the detection work. Place the equipment body on the ground, and the two rollers and the two universal wheels cooperate with the bottom plate for support. At this time, the entire equipment body will roll forward on the ground, which is convenient for the user to move the entire device in the detection area and provides convenience for the air detection work;

[0011] The present invention provides a vehicle-mounted air quality detection device, which can cushion the device body to prevent the device body from being subjected to severe vibration. At the same time, the vehicle-mounted air quality detection device can adjust the height of the device body so that the device body can reach a standard detection height. In addition, the vehicle-mounted air quality detection device can be quickly removed from the vehicle body and enter the detection area for use alone.

[0012] It is further defined that the inflation mechanism includes a cylinder, in which a second spring and a piston are sequentially assembled from bottom to top, a T-shaped pedal is provided at the upper end of the piston, a limiting ring plate matching the piston is provided at the upper end of the cylinder, and the lower end of the cylinder is connected to a three-way joint. With such a structure, the second spring can push the piston upward in a natural state, and the limit ring plate can prevent the piston from separating from the cylinder. When the user steps on the T-shaped pedal with his foot, the T-shaped pedal can drive the piston to move downward. Since the first one-way guide valve allows the air in the three-way joint to enter the second air pipe, and the second one-way guide valve restricts the air in the three-way joint from entering the third air pipe, the air in the cylinder can be squeezed into the second air pipe through the three-way joint when the piston moves downward. When the user lifts his foot, under the action of the second spring, the piston and the T-shaped pedal will automatically push upward. Since the first one-way guide valve restricts the air in the second air pipe from entering the three-way joint, and the second one-way guide valve allows the air in the third air pipe to enter the three-way joint, the air in the external environment can be sucked into the cylinder when the piston moves upward, so that the user can continuously inflate the second air pipe by continuously stepping on the T-shaped pedal.

[0013] It is further defined that the rear end of the front wall of the U-shaped frame is provided with an upper limit plate and a lower limit plate matching the bottom plate, and the upper limit plate and the lower limit plate are respectively located at the upper and lower sides of the bottom plate. With such a structure, when the bottom plate is fixed in the U-shaped frame, the upper limit plate and the lower limit plate can further limit the upper and lower sides of the bottom plate, so that the bottom plate is not easy to shake up and down.

[0014] It is further defined that a plurality of mounting ears are provided at the lower part of the outer side of the U-shaped frame. With such a structure, the mounting ears can be assembled with bolts to fix the U-shaped frame to the vehicle body.

[0015] It is further defined that the bottom of the base plate is provided with a mounting groove matching the first air pipe, the six-way joint, the second air pipe, the three-way joint and the third air pipe. With such a structure, the first air pipe, the six-way joint, the second air pipe, the three-way joint and the third air pipe can be mounted in the mounting groove to protect the first air pipe, the six-way joint, the second air pipe, the three-way joint and the third air pipe.

[0016] Further defined, the hollow telescopic rod includes a first sleeve fixedly connected to the bottom plate. A second sleeve is slidably connected to the upper side inside the first sleeve. A sliding column is slidably connected to the upper side inside the second sleeve. The upper end of the sliding column is fixedly connected to the equipment body. The upper end of the airbag is fixedly connected to the lower end of the sliding column. The lower end of the airbag is fixedly connected to the upper end of the bottom plate. With such a structure, the sliding column is slidably connected to the second sleeve, and the second sleeve is slidably connected to the first sleeve, enabling the entire hollow telescopic rod to expand and contract up and down.

[0017] Further defined, a handle is provided at the rear end of the equipment body. With such a structure, it is convenient for the user to control the entire device to move.

[0018] Further defined, the diameter of the roller is between 35 cm and 40 cm. With such a structure, the passability of the entire device can be increased.

[0019] The present invention has the following advantages compared with the prior art:

[0020] 1. When the inflation mechanism is working, it can continuously inflate the second air pipe. The air entering the second air pipe can be distributed to the four first air pipes through the six-way joint. The four first air pipes then respectively fill the four airbags with air. During the inflation process, the four airbags will gradually expand. Under the guidance and support of the hollow telescopic rod, the four gradually expanding airbags can gradually lift the equipment body. In this way, the height of the equipment body can be increased. When the user opens the switch valve, the air in the four airbags can gradually be discharged through the fourth air pipe. During the gradual discharge process, the four airbags will gradually shrink, causing the height of the equipment body to gradually decrease. In this way, the height of the equipment body can be reduced. Through the above operations, the height of the equipment body can be adjusted so that the equipment body can reach the standard detection height;

[0021] 2. The adjustment process of the equipment body is simple and convenient, facilitating the user to use, and has high practicability;

[0022] 3. The four airbags cooperate with the four hollow telescopic rods to play a buffering role for the equipment body. The four airbags can absorb the bumps generated during the vehicle's driving process. In this way, the equipment body will not be violently shaken, making it difficult for the equipment body to be damaged due to vibration and preventing the equipment body from operating unstably;

[0023] 4. When encountering a detection area where the vehicle cannot enter, the user pulls the handle backward, causing the handle to drive the two pull wires to move backward synchronously. Under the guiding action of the two wire grooves, the two pull wires will synchronously pull the two T-shaped locking bolts towards the middle, causing the two T-shaped locking bolts to respectively compress the two first springs and withdraw from the two lock holes. At this time, the bottom plate can be pulled out backward from the U-shaped frame. In this way, the equipment body can be quickly removed from the vehicle body and then enter the detection area alone for use, bringing convenience to the detection work;

[0024] 5. Place the device body on the ground, and let the two rollers and two casters cooperate with the bottom plate for support. At this time, the entire device body can roll forward on the ground, which facilitates the user to move the entire device in the detection area and provides convenience for air detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention can be further illustrated by the non-limiting embodiments given in the attached drawings;

[0026] Figure 1 It is a schematic cross-sectional structure diagram of an embodiment of a vehicle-mounted air quality detection device of the present invention;

[0027] Figure 2 For Figure 1 an enlarged schematic view of the structure at A in

[0028] Figure 3 It is a schematic structure diagram of an embodiment of a vehicle-mounted air quality detection device of the present invention;

[0029] Figure 4 For Figure 3 an enlarged schematic view of the structure at B in

[0030] The main element symbols are explained as follows:

[0031] Device body 1, hollow telescopic rod 2, bottom plate 21, roller 22, caster 23, airbag 24, first air pipe 25, six-way joint 26, three-way joint 27, second air pipe 28, first one-way conduction valve 29, third air pipe 3, second one-way conduction valve 31, fourth air pipe 32, switch valve 33, U-shaped frame 4, lock hole 41, stepped hole 42, first spring 43, T-shaped lock bolt 44, pull wire 45, wire groove 46, handle 47, cylinder body 5, second spring 51, piston 52, T-shaped pedal 53, limit ring plate 54, upper limit plate 55, lower limit plate 56, mounting ear 57, mounting groove 58, first sleeve 6, second sleeve 62, sliding column 63, handle 64. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] In order to enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below in conjunction with the drawings and embodiments.

[0033] As Figures 1-4As shown in the figure, a vehicle-mounted air quality detection device of the present invention includes a device body 1. Four hollow telescopic rods 2 are provided at the lower end of the device body 1, and a bottom plate 21 is fixedly connected to the lower ends of the four hollow telescopic rods 2. Two rollers 22 distributed left and right are rotatably connected to the rear side of the bottom plate 21. Two universal wheels 23 are provided at the front side of the lower end of the bottom plate 21. An airbag 24 is provided inside the hollow telescopic rod 2. A first air pipe 25 is connected to the lower end of the airbag 24. The ends of the four first air pipes 25 are connected to a six-way joint 26 fixedly connected to the bottom plate 21. An inflation mechanism is provided at the rear side of the upper end of the bottom plate 21. The lower end of the inflation mechanism is connected to a three-way joint 27. A second air pipe 28 is connected between the three-way joint 27 and the six-way joint 26. The second air pipe 28 is provided with a first one-way conduction valve 29. The three-way joint 27 is connected to a third air pipe 3. The third air pipe 3 is provided with a second one-way conduction valve 31. The upper end of the six-way joint 26 is connected to a fourth air pipe 32. The fourth air pipe 32 is provided with a switch valve 33. A U-shaped frame 4 is fixedly connected to the outside of the bottom plate 21. Lock holes 41 are provided on both the left and right sides of the inner wall of the U-shaped frame 4. Step holes 42 matching the lock holes 41 are provided on both the left and right sides of the bottom plate 21. A first spring 43 and a T-shaped lock bolt 44 are sequentially assembled in the two step holes 42 from the inside to the outside. One end of each of the two T-shaped lock bolts 44 close to the first spring 43 is connected to a pull wire 45. The pull wire 45 is guided to the rear end of the bottom plate 21 through a wire groove 46. The ends of the two pull wires 45 are fixedly connected to a handle 47.

[0034] Adopting the technical solution of the present invention, in the initial state, the U-shaped frame 4 is fixed on the vehicle body of the environmental monitoring vehicle. The bottom plate 21 stays inside the U-shaped frame 4 through the two rollers 22 and the two universal wheels 23. The U-shaped frame 4 can limit the left and right sides of the bottom plate 21. The two first springs 43 push the two T-shaped lock bolts 44 into the two lock holes 41 of the U-shaped frame 4 respectively in the natural state. The cooperation of the two lock holes 41 and the two T-shaped lock bolts 44 can limit the front and rear sides and the upper and lower sides of the bottom plate 21. In this way, the whole device is in a state of being fixed on the vehicle body.

[0035] The first one-way conduction valve 29 can allow the air in the tee joint 27 to enter the second air pipe 28, and at the same time can restrict the air in the second air pipe 28 from entering the tee joint 27. The second one-way conduction valve 31 can allow the air in the third air pipe 3 to enter the tee joint 27, and by restricting the air in the tee joint 27 from entering the third air pipe 3. When the user steps on the inflation mechanism with the foot, the inflation mechanism can inflate the second air pipe 28 through the tee joint 27. When the user's foot is lifted, the air in the external environment can be sucked into the inflation mechanism through the third air pipe 3. In this way, when the user continuously steps on the inflation mechanism, the inflation mechanism can continuously inflate the second air pipe 28. The air entering the second air pipe 28 can be distributed to the four first air pipes 25 through the six-way joint 26. The four first air pipes 25 then respectively fill the four air bags 24 with air. The four air bags 24 will gradually expand during the inflation process. Under the guidance and support of the hollow telescopic rod 2, the four gradually expanding air bags 24 can gradually lift the equipment body 1, so as to increase the height of the equipment body 1. When the user opens the switch valve 33, the air in the four air bags 24 can be gradually discharged through the fourth air pipe 32. During the gradual discharge process, the four air bags 24 will gradually shrink, causing the height of the equipment body 1 to gradually decrease, so as to lower the height of the equipment body 1. Through the above operations, the height of the equipment body 1 can be adjusted so that the equipment body 1 can reach the standard detection height. The adjustment process of the equipment body 1 is simple and convenient, which is convenient for the user to use and has high practicability;

[0036] The four air bags 24 and the four hollow telescopic rods 2 can play a buffering role for the equipment body 1. The four air bags 24 can absorb the bumps generated during the vehicle's driving process, so that the equipment body 1 will not be violently shaken, making the equipment body 1 not easily damaged due to vibration, and preventing the equipment body 1 from operating unstably;

[0037] When encountering a detection area where the vehicle cannot enter, the user pulls the handle 47 backward, so that the handle 47 drives the two pull wires 45 to move backward synchronously. Under the guiding action of the two wire grooves 46, the two pull wires 45 will synchronously pull the two T-shaped lock bolts 44 towards the middle, causing the two T-shaped lock bolts 44 to respectively compress the two first springs 43 and withdraw from the two lock holes 41. At this time, the bottom plate 21 can be pulled backward from the U-shaped frame 4, so that the equipment body 1 can be quickly removed from the vehicle body, and then enter the detection area alone for use, which brings convenience to the detection work. Place the equipment body 1 on the ground, and the two rollers 22 and the two universal wheels 23 cooperate with the bottom plate 21 for support. At this time, the entire equipment body 1 rolls forward on the ground, which is convenient for the user to move the entire device in the detection area and provides convenience for the air detection work;

[0038] The present invention provides a vehicle-mounted air quality detection device, which can buffer the device body 1 to prevent the device body 1 from being violently shaken. At the same time, the vehicle-mounted air quality detection device can adjust the height of the device body 1 so that the device body 1 can reach the standard detection height. In addition, the vehicle-mounted air quality detection device can be quickly removed from the vehicle body and enter the detection area alone for use.

[0039] Preferably, the inflation mechanism includes a cylinder body 5. A second spring 51 and a piston 52 are sequentially assembled in the cylinder body 5 from bottom to top. A T-shaped pedal 53 is provided at the upper end of the piston 52. A limiting ring plate 54 matching the piston 52 is provided at the upper end of the cylinder body 5. The lower end of the cylinder body 5 is connected to a three-way joint 27. With such a structure, the second spring 51 can push the piston 52 upward in the natural state, and the limiting ring plate 54 can prevent the piston 52 from detaching from the cylinder body 5. When the user steps on the T-shaped pedal 53 with the foot, the T-shaped pedal 53 can drive the piston 52 to move downward. Since the first one-way conduction valve 29 allows the air in the three-way joint 27 to enter the second air pipe 28, and the second one-way conduction valve 31 restricts the air in the three-way joint 27 from entering the third air pipe 3, when the piston 52 moves downward, the air in the cylinder body 5 can be squeezed into the second air pipe 28 through the three-way joint 27. When the user lifts the foot, under the action of the second spring 51, the piston 52 and the T-shaped pedal 53 will automatically move upward. Since the first one-way conduction valve 29 restricts the air in the second air pipe 28 from entering the three-way joint 27, and the second one-way conduction valve 31 allows the air in the third air pipe 3 to enter the three-way joint 27, when the piston 52 moves upward, the air in the external environment can be inhaled into the cylinder body 5. In this way, the user can continuously step on the T-shaped pedal 53 to continuously inflate the second air pipe 28. In fact, other structures that can continuously inflate the second air pipe 28 by continuous stepping on by the user can also be considered according to the situation.

[0040] Preferably, an upper limiting plate 55 and a lower limiting plate 56 matching the bottom plate 21 are provided at the rear end of the front wall of the U-shaped frame 4. The upper limiting plate 55 and the lower limiting plate 56 are respectively located on the upper and lower sides of the bottom plate 21. With such a structure, when the bottom plate 21 is fixed in the U-shaped frame 4, the upper limiting plate 55 and the lower limiting plate 56 can further limit the upper and lower sides of the bottom plate 21, making it difficult for the bottom plate 21 to shake up and down. In fact, other structures that can make it difficult for the bottom plate 21 to shake up and down when the bottom plate 21 is fixed in the U-shaped frame 4 can also be considered according to the situation.

[0041] Preferably, a plurality of mounting ears 57 are provided at the lower part of the outer side of the U-shaped frame 4. With such a structure, the mounting ears 57 can be assembled with bolts to fix the U-shaped frame 4 to the vehicle body. In fact, other structures that can be assembled with bolts to fix the U-shaped frame 4 to the vehicle body can also be considered according to the situation.

[0042] Preferably, an installation groove 58 matching the first air pipe 25, six-way joint 26, second air pipe 28, three-way joint 27 and third air pipe 3 is provided at the bottom of the bottom plate 21. With such a structure, installing the first air pipe 25, six-way joint 26, second air pipe 28, three-way joint 27 and third air pipe 3 in the installation groove 58 can protect the first air pipe 25, six-way joint 26, second air pipe 28, three-way joint 27 and third air pipe 3. In fact, other structures that can protect the first air pipe 25, six-way joint 26, second air pipe 28, three-way joint 27 and third air pipe 3 can also be considered according to the situation.

[0043] Preferably, the hollow telescopic rod 2 includes a first sleeve 6 fixedly connected to the bottom plate 21. A second sleeve 62 is slidably connected to the upper side inside the first sleeve 6. A sliding column 63 is slidably connected to the upper side inside the second sleeve 62. The upper end of the sliding column 63 is fixedly connected to the device body 1. The upper end of the airbag 24 is fixedly connected to the lower end of the sliding column 63. The lower end of the airbag 24 is fixedly connected to the upper end of the bottom plate 21. With such a structure, the sliding column 63 is slidably connected to the second sleeve 62, and the second sleeve 62 is slidably connected to the first sleeve 6, enabling the entire hollow telescopic rod 2 to be telescoped up and down. In fact, other structures that can enable the entire hollow telescopic rod 2 to be telescoped up and down can also be considered according to the situation.

[0044] Preferably, a handle 64 is provided at the rear end of the device body 1. With such a structure, it is convenient for the user to control the movement of the entire device. In fact, other structures that can facilitate the user to control the movement of the entire device can also be considered according to the situation.

[0045] Preferably, the diameter of the roller 22 is between 35 cm and 40 cm. With such a structure, the passability of the entire device can be increased. In fact, other structures that can increase the passability of the entire device can also be considered according to the situation.

[0046] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A vehicle-mounted air quality detection device, including a device body (1), Characterized in that: Four hollow telescopic rods (2) distributed in a rectangle are arranged at the lower end of the device body (1). The lower ends of the four hollow telescopic rods (2) are fixedly connected with a bottom plate (21). Two rollers (22) distributed left and right are rotatably connected to the rear side of the bottom plate (21). Two universal wheels (23) are arranged at the front side of the lower end of the bottom plate (21). An airbag (24) is arranged in the hollow telescopic rod (2). The lower end of the airbag (24) is connected with a first air pipe (25). The ends of the four first air pipes (25) are connected with a six-way joint (26) fixedly connected with the bottom plate (21). An inflation mechanism is arranged at the rear side of the upper end of the bottom plate (21). The lower end of the inflation mechanism is connected with a three-way joint (27). A second air pipe (28) is connected between the three-way joint (27) and the six-way joint (26). A first one-way conduction valve (29) is arranged on the second air pipe (28). The three-way joint (27) is connected with a third air pipe (3). A second one-way conduction valve (31) is arranged on the third air pipe (3). The upper end of the six-way joint (26) is connected with a fourth air pipe (32). A switch valve (33) is arranged on the fourth air pipe (32). A U-shaped frame (4) fixedly connected with the vehicle body of the environmental monitoring vehicle is arranged on the outer side of the bottom plate (21). Lock holes (41) are arranged on the left and right sides of the inner wall of the U-shaped frame (4). Step holes (42) matching the lock holes (41) are arranged on the left and right sides of the bottom plate (21). A first spring (43) and a T-shaped lock bolt (44) are sequentially assembled in the two step holes (42) from the inside to the outside. One ends of the two T-shaped lock bolts (44) close to the first spring (43) are both connected with a pull wire (45). The pull wire (45) is guided to the rear end of the bottom plate (21) through a wire groove (46). The ends of the two pull wires (45) are fixedly connected with a handle (47); The inflation mechanism includes a cylinder body (5). A second spring (51) and a piston (52) are sequentially assembled in the cylinder body (5) from bottom to top. A T-shaped pedal (53) is arranged at the upper end of the piston (52). A limit ring plate (54) matching the piston (52) is arranged at the upper end of the cylinder body (5). The lower end of the cylinder body (5) is connected with the three-way joint (27).

2. The vehicle-mounted air quality detection device according to claim 1, Characterized in that: An upper limit plate (55) and a lower limit plate (56) matching the bottom plate (21) are arranged at the rear end of the front wall of the U-shaped frame (4). The upper limit plate (55) and the lower limit plate (56) are respectively located on the upper and lower sides of the bottom plate (21).

3. The vehicle-mounted air quality detection device according to claim 1, Characterized in that: A plurality of mounting ears (57) are arranged at the lower part of the outer side of the U-shaped frame (4).

4. The vehicle-mounted air quality detection device according to claim 1, Characterized in that: The bottom of the bottom plate (21) is provided with a mounting groove (58) that matches the first air pipe (25), the six-way joint (26), the second air pipe (28), the three-way joint (27), and the third air pipe (3).

5. An in-vehicle air quality detection device according to claim 1, characterized in that: The hollow telescopic rod (2) includes a first sleeve (6) fixedly connected to the bottom plate (21). A second sleeve (62) is slidably connected to the upper side inside the first sleeve (6). A sliding column (63) is slidably connected to the upper side inside the second sleeve (62). The upper end of the sliding column (63) is fixedly connected to the device body (1). The upper end of the airbag (24) is fixedly connected to the lower end of the sliding column (63). The lower end of the airbag (24) is fixedly connected to the upper end of the bottom plate (21).

6. An in-vehicle air quality detection device according to claim 1, characterized in that: A handle (64) is provided at the rear end of the device body (1).

7. An in-vehicle air quality detection device according to claim 1, characterized in that: The diameter of the roller (22) is between 35 cm and 40 cm.

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