An automobile exhaust emission sampling device and sampling method for low-carbon management of urban roads

Abstract

The present invention discloses an automobile exhaust emission sampling device and a sampling method for low-carbon management of urban roads, belonging to the field of exhaust gas detection. An automobile exhaust emission sampling device for low-carbon management of urban roads according to the present invention comprises: a support column, and a gas collection box body for collecting exhaust gas is installed at the lower end of the support column; a smoke exhaust chimney for slow exhaust is installed above the exhaust pipeline; a first support frame and a second support frame are used for protecting the detection structure at the bottom in the middle of the road; an air inlet is arranged at the upper end of the sampling box body, and a dust-proof net is arranged inside the air inlet. The present invention solves the problem that in the prior art, the automobile exhaust gas detection device only samples the gas around the exhaust gas through the detection structure, and the accuracy of exhaust gas detection is generally average. By means of the support frame sensing the driving position of the vehicle, the air extraction device is turned on or off, and the exhaust gas is extracted specifically, so as to improve the accuracy of the sampled exhaust gas, detect the exhaust gas emitted corresponding to each vehicle, and improve the detection effect.

Description

Technical Field

[0001] The present invention relates to the technical field of exhaust gas detection, and specifically to an automobile exhaust gas emission sampling device and sampling method for low-carbon management of urban roads. Background Art

[0002] Automobile exhaust gas is the waste gas generated when an automobile is in use, containing hundreds of different compounds, and the pollutants therein include solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead, sulfur oxides, etc. While directly harming human health, the exhaust gas will also have a profound impact on the environment in which humans live, and it is necessary to detect the automobile exhaust gas emission.

[0003] In the prior art, such as the Chinese patent with the publication number CN217112273U: A road exhaust gas detection device. This patent cleans the dust and foreign matters adhered to the inner surface of the collection cover body, and at the same time can clean the surface of the detection contact head, which can effectively avoid the situation that a large amount of dust and foreign matters adhere to the collection cover body and the detection contact head, further ensuring the detection accuracy of the detection contact head. Further, it reduces the human resources consumed during the regular cleaning of this road exhaust gas detection device by workers, and effectively improves the efficiency of the cleaning work.

[0004] However, in the above-mentioned technology, the existing automobile exhaust gas detection device only samples the gas around the exhaust gas through the detection structure, and the accuracy of the exhaust gas detection is general and the effect is not good.

[0005] In view of these defects, it is very necessary to design an automobile exhaust gas emission sampling device and sampling method for low-carbon management of urban roads. Summary of the Invention

[0006] The purpose of the present invention is to provide an automobile exhaust gas emission sampling device and sampling method for low-carbon management of urban roads, which can solve the problem that in the prior art, the existing automobile exhaust gas detection device only samples the gas around the exhaust gas through the detection structure, and the accuracy of the exhaust gas detection is general and the effect is not good.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An automobile exhaust gas emission sampling device for low-carbon management of urban roads, comprising:

[0008] A detection box is provided on each side of the road. The detection box is used to collect automobile exhaust gas emission data, and the detection box includes a data transmission module and a controller module;

[0009] It further includes:

[0010] A support column. The support column for installing the sampling structure is located at the rear end of the detection box, and a gas collection box for collecting exhaust gas is installed at the lower end of the support column;

[0011] An exhaust duct, an exhaust duct for discharging exhaust gas is located at the upper end of the gas collecting box body, and a smoke exhaust chimney for decelerating exhaust is installed above the exhaust duct;

[0012] The first support frame and the second support frame, the first support frame is provided on each side of the road, the first support frame is located on one side of the detection box, and the second support frame is used to protect the detection structure at the bottom of the middle of the road;

[0013] A sampling box body, a sampling box body for detecting exhaust gas in the middle of the road is located on one side of the first support frame and the second support frame. An air inlet is provided at the upper end of the sampling box body, and a dust-proof net is arranged inside the air inlet.

[0014] Preferably, a license plate capture camera for recording the license plate number is installed at the upper end of the detection box. The support column is connected to the detection box by fixing screws. The support column is embedded outside the gas collecting box body and fixedly connected to the gas collecting box body. An activated carbon adsorption box is installed inside the gas collecting box body, and the activated carbon adsorption box is used for disassembling and installing an activated carbon adsorption layer for filtering gas.

[0015] Preferably, a display is installed at the upper end of the exhaust duct. The display is connected to the upper end of the support column by fixing screws. A spray water tank is installed on one side of the display. A water guide pipe is installed outside the spray water tank. The lower end of the water guide pipe extends into the support column and is fixedly connected to the support column. A spray head is installed between the lower end of the water guide pipe and the exhaust duct, and the spray head is used for flushing and purifying the exhaust gas.

[0016] Preferably, the outer surface of the exhaust duct is fixedly connected to the support column through a circular buckle. A shrinkable hose is installed at the lower end of the exhaust duct. A sealing cover plate is installed at the lower end of the shrinkable hose. The shrinkable hose is connected to the sealing cover plate by fixing screws. The sealing cover plate is hermetically connected to the gas collecting box body through a sealing cushion layer.

[0017] Preferably, a road guardrail is arranged outside the detection box. The road guardrail is welded to the first support frame. The road guardrail is used to prevent pedestrians from entering the road. A collision-proof water tank is installed between the road guardrail and the detection box, and the collision-proof water tank is used to buffer the impact of a car accident.

[0018] Preferably, pressure detection plates for detecting pressure are installed on the lower end faces of the first support frame and the second support frame. A pressure sensor is installed inside the pressure detection plate. Reinforcement plates are installed on both sides of the lower ends of the first support frame and the second support frame. An anti-slip plate is welded to the lower end of the sampling box body. The anti-slip plate is embedded on both sides of the pressure detection plate and fixedly connected to the first support frame and the second support frame. Sliding grooves are provided on both sides of the second support frame and the first support frame. A shock-absorbing support plate is installed inside the sliding groove. Both ends of the shock-absorbing support plate are embedded inside the sliding groove and are slidably connected to the first support frame and the second support frame respectively. A spring damper is installed below the inside of the sliding groove.

[0019] Preferably, an exhaust gas conduit is installed at the lower end inside the first support frame and the second support frame. A first exhaust fan is installed between the exhaust gas conduit and the gas collection box body. The first exhaust fan is hermetically connected to the exhaust gas conduit and the gas collection box body through a first maintenance flange respectively. A second exhaust fan is installed between the exhaust gas conduit and the sampling box body. The second exhaust fan is hermetically connected to the exhaust gas conduit through a second connection flange. Maintenance covers are provided above both the first exhaust fan and the second exhaust fan. The maintenance covers are embedded in the upper ends of the second support frame and the first support frame and are engaged with the second support frame and the first support frame. Anti-slip pads are integrally formed on the upper end faces of the maintenance covers.

[0020] Preferably, connection pipes are installed on both outer sides of the sampling box body. A second exhaust fan is installed between one end of the exhaust gas conduit and the connection pipe. A guiding pipe is installed at the air suction port of the second exhaust fan. The guiding pipe and the connection pipe are hermetically connected through a flange.

[0021] Preferably, a first air guiding plate is arranged inside the sampling box body. A second air guiding plate is installed below the first air guiding plate. An air collection port is arranged between the second air guiding plate and the first air guiding plate. An exhaust gas sensor is arranged at the lower end of the second air guiding plate. The exhaust gas sensor is electrically connected to the detection box. Reinforcing ribs are installed at the lower ends of both the first air guiding plate and the second air guiding plate.

[0022] A sampling method for an automobile exhaust emission sampling device for urban road low-carbon management is characterized by comprising the following steps:

[0023] Step 1: Set the corresponding number of second support frames according to the road section, install the sampling box body on both sides of the second support frames, and level the roadside before carrying out the detection work;

[0024] Step 2: During the driving of the vehicle, after the pressure detection plate senses, the first exhaust fan and the second exhaust fan at the corresponding position are turned on according to the driving position of the vehicle, and the exhaust gas is extracted into the air inlet. The gas is guided into the gas collection port through the first air guide plate and the second air guide plate, so that the exhaust gas sensor can fully sense. The oxygen content of the exhaust gas is detected and transmitted to the detection box. The controller module makes a judgment based on this, and the sensing result is displayed on the display. When the exhaust gas detection is unqualified, the license plate capture camera is turned on to record the license plate number, and the information is recorded through the data transmission module;

[0025] Step 3: The exhaust gas is introduced into the interior of the exhaust gas duct through the connecting pipe. The exhaust gas is pumped into the interior of the gas collection box by the first exhaust fan, and the waste is adsorbed by the activated carbon adsorption box and then enters the exhaust pipe. Before the gas rises into the smoke exhaust chimney, the smoke is sprayed by the spray head and then discharged through the annular smoke exhaust chimney.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. The vehicle exhaust emission sampling device and sampling method for low-carbon management of urban roads can, during operation, set the corresponding number of second support frames according to the road section, install the sampling box body on both sides of the second support frame, level the roadside and then carry out the detection work, adapt to the detection work of roads with different widths, sense the driving position of the vehicle again, turn on or off the exhaust equipment, extract the exhaust gas specifically, thereby improving the accuracy of the sampled exhaust gas, detecting the exhaust gas emitted by each vehicle correspondingly, improving the detection effect, and discharging the extracted exhaust gas through the exhaust pipe. During the discharging process, the pollution of the exhaust gas can be reduced through the gas purification structure, improving the environmental protection effect, and having the ability of low-carbon environmental protection.

[0028] 2. The vehicle exhaust emission sampling device and sampling method for low-carbon management of urban roads, during the sampling work, after the pressure detection plate senses, the first exhaust fan and the second exhaust fan at the corresponding position are turned on according to the driving position of the vehicle, and the exhaust gas is extracted into the air inlet. The gas is guided into the gas collection port through the first air guide plate and the second air guide plate, so that the exhaust gas sensor can fully sense. The oxygen content of the exhaust gas is detected and transmitted to the detection box. The controller module makes a judgment based on this, and the sensing result is displayed on the display. When the exhaust gas detection is unqualified, the license plate capture camera is turned on to record the license plate number, and the information is recorded through the data transmission module, realizing intelligent sampling of the exhaust gas of each vehicle, not requiring the long-term opening of the fan, reducing energy consumption, facilitating long-term work, and further improving the environmental protection effect.

[0029] 3. The vehicle exhaust emission sampling equipment and sampling method for low-carbon management of urban roads. During operation, when the vehicle drives above the first support frame and the second support frame, the compressed first support frame and second support frame press down the spring damper through the shock-absorbing support plate, thereby buffering the pressure and maintaining the position stability of the first support frame and the second support frame. And the detection structure can be conveniently disassembled through the maintenance cover plate and the sealing cover plate, facilitating the maintenance and repair work. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Is the axonometric view of the front view of the present invention;

[0031] Figure 2 For the present invention Figure 1 Partial enlarged view of area A in the present invention;

[0032] Figure 3 Is the axonometric view of the top view of the present invention;

[0033] Figure 4 Is the axonometric view of the bottom view of the present invention;

[0034] Figure 5 For the present invention Figure 4 Partial enlarged view of area B in the present invention;

[0035] Figure 6 Is the axonometric view of the side view of the second support frame of the present invention;

[0036] Figure 7 For the present invention Figure 6 Partial enlarged view of area C in the present invention;

[0037] Figure 8 Is the internal structure diagram of the sampling box of the present invention;

[0038] Figure 9 Is the axonometric view of the side view of the detection box of the present invention;

[0039] Figure 10 Is the axonometric view of the side view of the gas collection box of the present invention.

[0040] In the figure: 1. Detection box; 101. License plate capture camera; 102. Sealing cover plate; 2. Support column; 201. Air collection box body; 2011. Activated carbon adsorption box; 3. Exhaust pipe; 301. Smoke exhaust chimney; 302. Display; 303. Spray water tank; 304. Water guide pipe; 305. Spray head; 306. Shrinkable hose; 4. Road guardrail; 401. Anti-collision water tank; 5. First support frame; 501. Pressure detection plate; 502. First exhaust fan; 503. First maintenance flange; 6. Second support frame; 601. Maintenance cover plate; 6011. Anti-slip pad; 602. Sliding groove; 603. Shock absorption support plate; 604. Reinforcing plate; 605. Second exhaust fan; 6051. Second connection flange; 6052. Guide pipe; 606. Tail gas duct; 7. Sampling box body; 701. Air inlet; 702. First air guide plate; 703. Second air guide plate; 704. Air collection port; 705. Tail gas sensor; 706. Connecting pipe; 707. Reinforcing rib; 708. Anti-slip plate. Specific embodiments

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] In order to solve the technical problem in the prior art that the existing vehicle exhaust gas detection device only samples the gas around the exhaust gas through the detection structure, and the accuracy of the exhaust gas detection is general and the effect is not good, please refer to Figure 1 、 Figure 3 - Figure 4 to provide the following technical solutions:

[0043] A vehicle exhaust gas sampling device for low-carbon management of urban roads includes:

[0044] One detection box 1 is provided on each side of the road. The detection box 1 is used to collect vehicle exhaust gas emission data, and the detection box 1 includes a data transmission module and a controller module;

[0045] It also includes:

[0046] A support column 2. The support column 2 for installing the sampling structure is located at the rear end of the detection box 1, and a gas collection box body 201 for collecting exhaust gas is installed at the lower end of the support column 2;

[0047] An exhaust pipe 3. The exhaust pipe 3 for discharging exhaust gas is located at the upper end of the gas collection box body 201, and a smoke exhaust chimney 301 for slowing down the exhaust gas is installed above the exhaust pipe 3;

[0048] The first support frame 5 and the second support frame 6 are provided on both sides of the road. The first support frame 5 is located on one side of the detection box 1, and the second support frame 6 is used to protect the detection structure at the bottom in the middle of the road.

[0049] The sampling box body 7 for detecting the tail gas in the middle of the road is located on one side of the first support frame 5 and the second support frame 6. An air inlet 701 is provided at the upper end of the sampling box body 7, and a dust-proof net is arranged inside the air inlet 701.

[0050] Specifically, during work, the corresponding number of second support frames 6 can be set according to the road section. The sampling box body 7 is installed on both sides of the second support frame 6. After the roadside is leveled, the detection work is carried out to adapt to the detection work of road surfaces with different widths. Then, the driving position of the vehicle is sensed, and the exhaust extraction device is turned on or off to extract the tail gas specifically, so as to improve the accuracy of the sampled tail gas, detect the tail gas emitted by each vehicle correspondingly, and improve the detection effect.

[0051] To solve the technical problem in the prior art that the gas cannot be purified after the tail gas detection, which is not conducive to the environmental protection effect, please refer to Figure 6 、 Figure 10 and the following technical solutions are provided:

[0052] A license plate capture camera 101 for recording the license plate number is installed at the upper end of the detection box 1. The support column 2 is connected to the detection box 1 through fixing screws. The support column 2 is embedded outside the gas collection box body 201 and fixedly connected to the gas collection box body 201. An activated carbon adsorption box 2011 for disassembling and installing the activated carbon adsorption layer for filtering gas is installed inside the gas collection box body 201.

[0053] A display 302 is installed at the upper end of the exhaust pipe 3. The display 302 is connected to the upper end of the support column 2 through fixing screws. A spray water tank 303 is installed on one side of the display 302. A water guide pipe 304 is installed outside the spray water tank 303. The lower end of the water guide pipe 304 extends into the support column 2 and is fixedly connected to the support column 2. A spray head 305 is installed between the lower end of the water guide pipe 304 and the exhaust pipe 3. The spray head 305 is used to wash and purify the tail gas.

[0054] Specifically, the tail gas is drawn into the gas collection box body 201 by the first exhaust fan 502, and the waste is adsorbed by the activated carbon adsorption box 2011 and then enters the exhaust pipe 3. Before the gas rises into the smoke exhaust chimney 301, the smoke is sprayed by the spray head 305 and then discharged through the annular smoke exhaust chimney 301. The extracted tail gas can be discharged through the exhaust pipe 3. During the discharge process, the pollution of the tail gas can be reduced through the gas purification structure, the environmental protection effect is improved, and it has the ability of low-carbon environmental protection.

[0055] In order to solve the technical problem in the prior art that the detection device conducts detection work on the road surface for a long time, it is inconvenient to handle dust, and it affects the working accuracy, please refer to Figure 6 - Figure 7 , Figure 9 , the following technical solutions are provided:

[0056] The outer surface of the exhaust pipe 3 is fixedly connected to the support column 2 through a ring buckle, and a shrinkable hose 306 is installed at the lower end of the exhaust pipe 3. A sealing cover plate 102 is installed at the lower end of the shrinkable hose 306, and the shrinkable hose 306 and the sealing cover plate 102 are connected by fixing screws. The sealing cover plate 102 is hermetically connected to the air collecting box body 201 through a sealing cushion layer.

[0057] A road guardrail 4 is arranged outside the detection box 1. The road guardrail 4 is welded to the first support frame 5. The road guardrail 4 is used to prevent pedestrians from entering the road, and an anti-collision water tank 401 is installed between the road guardrail 4 and the detection box 1. The anti-collision water tank 401 is used to buffer the impact of a car accident.

[0058] Above the first exhaust fan 502 and the second exhaust fan 605, a maintenance cover plate 601 is provided. The maintenance cover plate 601 is embedded in the upper ends of the second support frame 6 and the first support frame 5 and is engaged with the second support frame 6 and the first support frame 5. An integrally formed anti-slip pad 6011 is provided on the upper end surface of the maintenance cover plate 601.

[0059] Specifically, during long-term operation, the detection structure can be conveniently disassembled through the maintenance cover plate 601 and the sealing cover plate 102, which is convenient for maintenance and repair work. And the road guardrail 4 protects cars and pedestrians, isolates both sides of the road, and the anti-collision water tank 401 reduces the impact of the car, protects the detection box 1, reduces losses, and improves safety.

[0060] In order to solve the technical problem in the prior art that the existing detection device cannot maintain stability for a long time when installed on the road, which is not conducive to long-term operation, please refer to Figure 1 - Figure 2 , Figure 4 - Figure 6 , the following technical solutions are provided:

[0061] Pressure detection plates 501 for detecting pressure are installed on the lower end faces of the first support frame 5 and the second support frame 6. A pressure sensor is installed inside the pressure detection plate 501. Reinforcement plates 604 are installed on both sides of the lower ends of the first support frame 5 and the second support frame 6. An anti-slip plate 708 is welded to the lower end of the sampling box body 7. The two sides of the anti-slip plate 708 are embedded into the pressure detection plate 501 and fixedly connected to the first support frame 5 and the second support frame 6. Sliding grooves 602 are provided on both sides of the second support frame 6 and the first support frame 5. A shock-absorbing support plate 603 is installed inside the sliding groove 602. Both ends of the shock-absorbing support plate 603 are embedded into the sliding groove 602 and are slidably connected to the first support frame 5 and the second support frame 6 respectively. A spring damper is installed below the inside of the sliding groove 602.

[0062] An exhaust gas duct 606 is installed at the lower end inside the first support frame 5 and the second support frame 6. A first exhaust fan 502 is installed between the exhaust gas duct 606 and the gas collection box body 201. The first exhaust fan 502 is hermetically connected to the exhaust gas duct 606 and the gas collection box body 201 respectively through a first maintenance flange 503. A second exhaust fan 605 is installed between the exhaust gas duct 606 and the sampling box body 7. The second exhaust fan 605 is hermetically connected to the exhaust gas duct 606 through a second connection flange 6051.

[0063] Specifically, during the sampling operation, after the pressure detection plate 501 senses, the first exhaust fan 502 and the second exhaust fan 605 at the corresponding position are turned on according to the driving position of the vehicle. When the vehicle drives above the first support frame 5 and the second support frame 6, the first support frame 5 and the second support frame 6 under pressure press down the spring damper through the shock-absorbing support plate 603, thereby buffering the pressure and maintaining the position stability of the first support frame 5 and the second support frame 6, which is beneficial to extending the service life of the equipment.

[0064] To solve the technical problems in the prior art that the accuracy of sampling exhaust gas is general and there are errors in the sampling results, please refer to Figure 8 - Figure 9 the following technical solutions are provided:

[0065] Connection pipes 706 are installed on both sides of the outside of the sampling box body 7. A second exhaust fan 605 is installed between one end of the exhaust gas duct 606 and the connection pipe 706. A guiding pipe 6052 is installed at the suction port of the second exhaust fan 605. The guiding pipe 6052 and the connection pipe 706 are hermetically connected through a flange.

[0066] Inside the sampling box body 7, a first air guiding plate 702 is provided. Below the first air guiding plate 702, a second air guiding plate 703 is installed. An air collecting port 704 is provided between the second air guiding plate 703 and the first air guiding plate 702. At the lower end of the second air guiding plate 703, an exhaust gas sensor 705 is provided. The exhaust gas sensor 705 is electrically connected to the detection box 1. Reinforcing ribs 707 are installed at the lower ends of both the first air guiding plate 702 and the second air guiding plate 703.

[0067] Specifically, the extracted exhaust gas enters the air inlet 701. The first air guiding plate 702 and the second air guiding plate 703 guide the gas into the air collecting port 704, enabling the exhaust gas sensor 705 to fully sense. The exhaust gas oxygen content is transmitted to the detection box 1 through detection, realizing intelligent sampling of the exhaust gas of each vehicle. There is no need to keep the fan running for a long time, reducing energy consumption, facilitating long-term operation, further improving the environmental protection effect, extracting and sampling the exhaust gas of vehicles, improving the sampling accuracy, and being beneficial for long-term operation.

[0068] Please refer to Figure 1 - Figure 10 , a sampling method for an automobile exhaust gas emission sampling device used for low-carbon management of urban roads, characterized by including the following steps:

[0069] Step 1: Set the corresponding number of second support frames 6 according to the road section. Install the sampling box body 7 on both sides of the second support frame 6. After leveling the roadside, carry out the detection work;

[0070] Step 2: During the driving process of the vehicle, after the pressure detection plate 501 senses, according to the driving position of the vehicle, turn on the first exhaust fan 502 and the second exhaust fan 605 at the corresponding position, extract the exhaust gas into the air inlet 701. The first air guiding plate 702 and the second air guiding plate 703 guide the gas into the air collecting port 704, enabling the exhaust gas sensor 705 to fully sense. The exhaust gas oxygen content is transmitted to the detection box 1 through detection. The controller module makes a judgment based on this. The induction result is displayed at the display 302. When the exhaust gas detection is unqualified, turn on the license plate capture camera 101 to record the license plate number, and record the information through the data transmission module;

[0071] Step 3: The exhaust gas is introduced into the exhaust gas duct 606 through the connecting pipe 706. The exhaust gas is drawn into the inside of the gas collecting box body 201 by the first exhaust fan 502. The waste is adsorbed by the activated carbon adsorption box 2011 and enters the exhaust pipe 3. Before the gas rises into the smoke exhaust chimney 301, the smoke is sprayed by the spray head 305 and then discharged through the annular smoke exhaust chimney 301.

[0072] Working principle: During operation, the corresponding number of second support frames 6 can be set according to the road section. The sampling box body 7 is installed on both sides of the second support frame 6. After the roadside is leveled, the detection work is carried out to adapt to the detection work of roads with different widths. During the sampling work, after the pressure detection plate 501 senses, the first exhaust fan 502 and the second exhaust fan 605 at the corresponding position are turned on according to the driving position of the vehicle. When the vehicle drives above the first support frame 5 and the second support frame 6, the pressed first support frame 5 and second support frame 6 press down the spring damper through the shock absorption support plate 603, thereby buffering the pressure and maintaining the position stability of the first support frame 5 and the second support frame 6, which is beneficial to extending the service life of the equipment. When the vehicle drives above the first support frame 5 and the second support frame 6, the pressed first support frame 5 and second support frame 6 press down the spring damper through the shock absorption support plate 603, thereby buffering the pressure and maintaining the position stability of the first support frame 5 and the second support frame 6. And the detection structure is convenient to disassemble through the maintenance cover plate 601 and the sealing cover plate 102, which is convenient for maintenance and repair work. The first exhaust fan 502 and the second exhaust fan 605 at the corresponding position are turned on according to the driving position of the vehicle, and the exhaust gas is extracted into the air inlet 701. The gas is guided into the gas collection port 704 through the first air guide plate 702 and the second air guide plate 703, so that the exhaust gas sensor 705 can fully sense. The detected exhaust gas oxygen content is transmitted to the detection box 1, and the controller module makes a judgment based on this. The induction result is displayed at the display 302. When the exhaust gas detection is unqualified, the license plate capture camera 101 is turned on to record the license plate number, and the information is recorded through the data transmission module. The exhaust gas of each vehicle is sampled intelligently, without the need to keep the fan on for a long time, reducing energy consumption and facilitating long-term operation, further improving the environmental protection effect. The exhaust gas is drawn into the inside of the gas collection box body 201 through the first exhaust fan 502, the waste is adsorbed by the activated carbon adsorption box 2011, and then enters the exhaust pipe 3. Before the gas rises into the smoke exhaust chimney 301, the smoke is sprayed through the spray head 305, and then discharged through the annular smoke exhaust chimney 301. The extracted exhaust gas can be discharged through the exhaust pipe 3. During the discharge process, the pollution of the exhaust gas can be reduced through the gas purification structure, improving the environmental protection effect and having the ability of low-carbon environmental protection.

[0073] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0074] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile exhaust emission sampling device for low-carbon management of urban roads, comprising: A detection box (1) is provided on each side of the road. The detection box (1) is used to collect automobile exhaust emission data, and the detection box (1) includes a data transmission module and a controller module; It is characterized in that it further includes: A support column (2). The support column (2) for installing the sampling structure is located at the rear end of the detection box (1). A gas collection box body (201) for collecting exhaust gas is installed at the lower end of the support column (2); An exhaust pipe (3). The exhaust pipe (3) for discharging exhaust gas is located above the gas collection box body (201). A smoke exhaust chimney (301) for slowing down the exhaust is installed above the exhaust pipe (3); A first support frame (5) and a second support frame (6). A first support frame (5) is provided on each side of the road. The first support frame (5) is located on one side of the detection box (1). The second support frame (6) is used to protect the middle of the road; Pressure detection plates (501) for detecting pressure are installed on the lower end surfaces of the first support frame (5) and the second support frame (6); A tail gas conduit (606) is installed at the lower inner part of the first support frame (5) and the second support frame (6). A first exhaust fan (502) is installed between the tail gas conduit (606) and the gas collection box body (201), and a second exhaust fan (605) is installed between the tail gas conduit (606) and the sampling box body (7); A sampling box body (7). The sampling box body (7) for detecting the exhaust gas in the middle of the road is located on one side of the first support frame (5) and the second support frame (6). An air inlet (701) is provided at the upper end of the sampling box body (7), and a dust-proof net is provided inside the air inlet (701).

2. The vehicle exhaust emission sampling device for low-carbon management of urban roads according to claim 1, characterized in that: A license plate capture camera (101) for recording the license plate number is installed at the upper end of the detection box (1). The support column (2) is connected to the detection box (1) by fixing screws. The support column (2) is embedded outside the gas collection box body (201) and fixedly connected to the gas collection box body (201). An activated carbon adsorption box (2011) for disassembling and installing an activated carbon adsorption layer for filtering gas is installed inside the gas collection box body (201).

3. The vehicle exhaust emission sampling device for low-carbon management of urban roads according to claim 2, characterized in that: A display (302) is installed at the upper end of the exhaust pipe (3). The display (302) is connected to the upper end of the support column (2) by fixing screws. A spray water tank (303) is installed on one side of the display (302). A water guide pipe (304) is installed outside the spray water tank (303). The lower end of the water guide pipe (304) extends into the interior of the support column (2) and is fixedly connected to the support column (2). A spray head (305) is installed between the lower end of the water guide pipe (304) and the exhaust pipe (3). The spray head (305) is used to wash and purify the exhaust gas.

4. The vehicle exhaust emission sampling device for low-carbon management of urban roads according to claim 3, characterized in that: The outer surface of the exhaust duct (3) is fixedly connected to the support column (2) through an annular buckle, and a shrinkable hose (306) is installed at the lower end of the exhaust duct (3). A sealing cover plate (102) is installed at the lower end of the shrinkable hose (306), and the shrinkable hose (306) is connected to the sealing cover plate (102) by fixing screws. The sealing cover plate (102) is hermetically connected to the gas collecting box body (201) through a sealing cushion layer.

5. The vehicle exhaust emission sampling device for low-carbon management of urban roads according to claim 4, characterized in that: A road guardrail (4) is arranged outside the detection box (1). The road guardrail (4) is welded to the first support frame (5). The road guardrail (4) is used to prevent pedestrians from entering the road, and an anti-collision water tank (401) is installed between the road guardrail (4) and the detection box (1). The anti-collision water tank (401) is used to buffer the impact of a car accident.

6. The vehicle exhaust emission sampling device for low-carbon management of urban roads according to claim 5, characterized in that: A pressure sensor is installed inside the pressure detection plate (501). Reinforcement plates (604) are installed on both sides of the lower ends of the first support frame (5) and the second support frame (6). An anti-slip plate (708) is welded to the lower end of the sampling box body (7). The anti-slip plate (708) is embedded on both sides of the pressure detection plate (501) and fixedly connected to the first support frame (5) and the second support frame (6). Sliding grooves (602) are arranged on both sides of the second support frame (6) and the first support frame (5). A shock-absorbing support plate (603) is installed inside the sliding groove (602). Both ends of the shock-absorbing support plate (603) are embedded inside the sliding groove (602) and are slidably connected to the first support frame (5) and the second support frame (6) respectively. A spring damper is installed below the inside of the sliding groove (602).

7. An automobile exhaust emission sampling device for low-carbon management of urban roads according to claim 6, characterized in that: The first exhaust fan (502) is hermetically connected to the tail gas duct (606) and the gas collecting box body (201) respectively through a first maintenance flange (503). The second exhaust fan (605) is hermetically connected to the tail gas duct (606) through a second connecting flange (6051). Maintenance cover plates (601) are arranged above the first exhaust fan (502) and the second exhaust fan (605). The maintenance cover plates (601) are embedded in the upper ends of the second support frame (6) and the first support frame (5) and are engaged with the second support frame (6) and the first support frame (5). An integrally formed anti-slip pad (6011) is arranged on the upper end surface of the maintenance cover plate (601).

8. The vehicle exhaust emission sampling device for low-carbon management of urban roads according to claim 7, characterized in that: Connecting pipes (706) are installed on both sides of the outside of the sampling box body (7). A second exhaust fan (605) is installed between one end of the tail gas duct (606) and the connecting pipe (706). A guiding pipe (6052) is installed at the air suction port of the second exhaust fan (605). The guiding pipe (6052) is hermetically connected to the connecting pipe (706) through a flange.

9. The vehicle exhaust emission sampling device for low-carbon management of urban roads according to claim 8, characterized in that: Inside the sampling box body (7), a first air guide plate (702) is provided. Below the first air guide plate (702), a second air guide plate (703) is installed. An air collecting port (704) is arranged between the second air guide plate (703) and the first air guide plate (702). At the lower end of the second air guide plate (703), an exhaust gas sensor (705) is provided. The exhaust gas sensor (705) is electrically connected to the detection box (1). Reinforcing ribs (707) are installed at the lower ends of both the first air guide plate (702) and the second air guide plate (703).

10. A sampling method for an automobile exhaust emission sampling device for low-carbon management of urban roads according to claim 9, characterized in that, It includes the following steps: Step 1: Set the corresponding number of second support frames (6) according to the road section. Install the sampling box body (7) on both sides of the second support frame (6). After leveling the roadside, carry out the detection work; Step 2: During the driving of the vehicle, after the pressure detection plate (501) senses, according to the driving position of the vehicle, turn on the first exhaust fan (502) and the second exhaust fan (605) at the corresponding position, extract the exhaust gas into the air inlet (701), guide the gas into the air collecting port (704) through the first air guide plate (702) and the second air guide plate (703), so that the exhaust gas sensor (705) can fully sense. Transmit the detected exhaust gas oxygen content to the detection box (1), and the controller module makes a judgment based on this. The sensing result is displayed at the display (302). When the exhaust gas detection is unqualified, turn on the license plate capture camera (101) to record the license plate number, and record the information through the data transmission module; Step 3: The exhaust gas is introduced into the exhaust gas duct (606) through the connecting pipe (706). The exhaust gas is pumped into the inside of the air collecting box body (201) by the first exhaust fan (502), adsorbed of waste materials by the activated carbon adsorption box (2011), and enters the exhaust pipe (3). Before the gas rises into the smoke exhaust chimney (301), spray the flue gas through the spray head (305), and then discharge it through the annular smoke exhaust chimney (301).

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