CN219842393U - Movable motor vehicle exhaust pollutant detection line - Google Patents

Abstract

The utility model discloses a movable motor vehicle exhaust pollutant detection line, which comprises a lifting frame, wherein an exhaust pollutant detection device is arranged on the lifting frame, a foldable track frame is arranged on one side of the lifting frame, and the track frame is hinged with the lifting frame; a connecting frame is arranged on one side of the lifting frame, which is connected with the track frame; the lifting frame is characterized in that first connecting rods are hinged to the middle positions of two sides of the lifting frame respectively, second connecting rods are hinged to one ends, close to the connecting frames, of two sides of the lifting frame respectively, free ends of the first connecting rods and the second connecting rods on each side are hinged to two lower ends of corresponding sides of the connecting frames respectively to form a parallel four-bar mechanism, second linear driving devices are hinged to the middle positions of two sides of the lifting frame respectively, the free ends of the second linear driving devices are hinged to the second connecting rods on the corresponding sides, and the middle of the connecting frames are hinged to the track frame. The mobile motor vehicle exhaust pollutant detection line disclosed by the utility model enables motor vehicle detection in remote areas to be more convenient.

Description

Movable motor vehicle exhaust pollutant detection line

Technical Field

The utility model belongs to the technical field of tail gas detection, and particularly relates to a movable motor vehicle exhaust pollutant detection line.

Background

With the rapid development of the automobile industry, the number of automobiles is continuously increased, and the exhaust emission of the automobiles becomes a significant pollution source, so that the pollution of the automobiles to the atmosphere is reduced for real-time monitoring and control, and the exhaust emission of the automobiles is listed as a necessary inspection item for detecting the automobiles. However, at present, in many areas, especially remote areas, motor vehicle detection stations are few, and the motor vehicle detection stations are hundreds of kilometers away from the rural areas of the lower ground city, so that motor vehicle detection by residents is inconvenient.

Disclosure of Invention

The utility model aims to provide a movable motor vehicle exhaust pollutant detection line which is used for solving the problem that motor vehicles in remote areas are inconvenient to detect in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the movable motor vehicle exhaust pollutant detection line comprises a lifting frame, wherein an exhaust pollutant detection device is arranged on the lifting frame, a foldable track frame is arranged on one side of the lifting frame, and the track frame is hinged with the lifting frame; a connecting frame is arranged on one side of the lifting frame, which is connected with the track frame; the lifting frame is characterized in that first connecting rods are hinged to the middle positions of two sides of the lifting frame respectively, second connecting rods are hinged to one ends, close to the connecting frames, of two sides of the lifting frame respectively, free ends of the first connecting rods and the second connecting rods on each side are hinged to two lower ends of corresponding sides of the connecting frames respectively to form a parallel four-bar mechanism, second linear driving devices are hinged to the middle positions of two sides of the lifting frame respectively, the free ends of the second linear driving devices are hinged to the second connecting rods on the corresponding sides, and the middle of the connecting frames are hinged to the track frame.

The working process and principle of the structure are as follows:

firstly, this exhaust pollutant detection line is located on large truck or the scooter, after truck or the scooter drives the detection line to the district that needs motor vehicle to detect, the crane is at first downward contact with ground, and drive whole equipment to rise and make things convenient for truck or scooter to leave, afterwards the crane descends subaerial, afterwards second sharp drive arrangement cooperates first connecting rod and second connecting rod, second sharp drive arrangement is the extension of straight line, make the second connecting rod drive first connecting rod to the direction deviation of keeping away from the crane, remove the link from the top of crane to horizontal ground, afterwards with folding track frame expansion in proper order, thereby realize the placing of detection line, thereby make things convenient for the motor vehicle to go to the crane through the track frame and carry out tail gas detection through exhaust pollutant detection device, after the detection, the operation sequence when folding production line is reverse with the order when expanding.

Further, the connecting frame comprises two connecting plates, the two connecting plates are respectively located at two sides of the lifting frame, two ends of the lower portion of each connecting plate are respectively hinged to a first connecting rod and a second connecting rod at corresponding sides, and the track frame is arranged between the two connecting plates and fixedly connected with the two connecting frames.

The two connecting plates are favorable for being stably connected with the two sides of the track frame, one connecting plate corresponds to one group of first connecting rods and second connecting rods, and the track frame is arranged between the two connecting plates and is favorable for being stably and excessively arranged on the lifting frame when the track frame is folded.

Further, the track frame includes a plurality of track modules and get-off inclined plate frame, is close to track module both sides of crane are connected with the connecting plate respectively, track module keeps away from the vertical rectangle breach that has seted up in crane one end middle part, rectangle breach central point puts and articulates there is third sharp drive arrangement, rectangle breach both sides all articulate there are third connecting rod and fourth connecting rod, rectangle breach homonymy third connecting rod and fourth connecting rod articulate respectively at adjacent track module's homonymy both ends, third sharp drive arrangement's free end articulates with the middle part of fourth connecting rod mutually, get-off inclined plate frame articulates with the track module who keeps away from the crane mutually.

The arrangement of the rectangular notch is beneficial to providing a movement space for the upward overturning of the third linear driving device, the third connecting rod and the fourth connecting rod, the track module, the adjacent track modules and the third connecting rod and the fourth connecting rod connected between the track module and the adjacent track modules form a parallel four-connecting-rod structure, the track module is convenient to be changed into a horizontal or stacking state, the third linear driving device provides driving force for the unfolding and folding of the track modules, and the lower inclined plate frame is beneficial to the vehicle to be driven out from the track frame.

Further, the crane comprises a lifting platform and lifting mechanisms arranged at four corners of the lifting platform, the lifting mechanisms comprise hydraulic lifting sleeves and telescopic supporting legs, the hydraulic lifting sleeves are vertically fixed on the plane of the lifting platform, the telescopic supporting legs penetrate through the lifting platform, the telescopic supporting legs are slidably arranged in the hydraulic lifting sleeves, and the four lifting mechanisms can synchronously lift and run.

When driving lift platform and taking off from the plate car, at first fill hydraulic oil in the hydraulic pressure lift sleeve for flexible stabilizer blade downwardly extending, and with ground contact, flexible stabilizer blade continues to extend after the contact ground, make lift platform bottom surface and the face separation of plate car, leave lift platform with the plate car, later hydraulic pressure lift sleeve pressure release, flexible stabilizer blade shrink in step for lift platform bottom surface and ground contact, place lift platform in the folding order of plate car and the aforesaid reverse order.

Further, each track module top surface is the plane board of concave font structure, track module lower part both sides are provided with the support body of right trapezoid structure, and the hypotenuse of this support body is located and is close to crane one side, be provided with a plurality of bracing pieces on the support body, third sharp drive arrangement, third connecting rod and fourth connecting rod are articulated with the support body respectively.

The plane boards of concave font mutually support, more help the traveling of motor vehicle and the mutually support of every track module, and right trapezoid structure's support body can not appear influencing the condition of collision each other in track module lift translation in-process, guarantees to draw in the steady operation of expansion, and the setting of bracing piece has improved the support ability of support body simultaneously, helps it to provide better holding power for third sharp drive arrangement, third connecting rod and fourth connecting rod.

Further, the opposite side of the lifting frame relative to the track frame is hinged with a car entering inclined plate frame, a first linear driving device is connected between the car entering inclined plate frame and the lifting frame, one end of the first linear driving device is hinged with the top surface of the lifting frame, and the middle position of the upper surface of the car entering inclined plate frame is hinged with the other end of the first linear driving device.

The arrangement of the car-entering inclined plate frame is beneficial to the car to more conveniently get on one side of the lifting frame and get out of the track frame, and the first linear driving device is used for driving the car-entering inclined plate frame to be folded upwards and put down horizontally.

Further, the lower inclined plate frame is hinged with the lower surface of the plane plate on one side, far away from the lifting frame, of the track module, a fourth linear driving device is hinged in the middle of the track module, and the free end of the fourth linear driving device is hinged with the middle of the lower surface of the lower inclined plate frame.

The fourth linear driving device is adopted to drive the getting-off inclined plate frame to be automatically unfolded or folded, and the unfolding and folding can be only performed when the track modules are in a stacked state.

Further, the entering inclined plate frame and the getting-off inclined plate frame comprise two rectangular grid frames, the rectangular grid frames of the entering inclined plate frame are hinged with the lifting frame, the rectangular grid frames of the getting-off inclined plate frame are hinged with the track module, a plurality of cross bars are connected between the two rectangular grid frames, the free end of the first linear driving device is hinged with the cross bars of the entering inclined plate frame, and the free end of the fourth linear driving device is hinged with the cross bars of the getting-off inclined plate frame; the rectangular grid frame comprises a long frame and a short frame, wherein the cross bars are distributed between the two long frames and between the two short frames, the cross bars are hinged to one end of the long frame, which is far away from the lifting frame, a plurality of butt support legs are arranged on the lower surface of the long frame, which is close to one end of the short frame, a fifth linear driving device is hinged to the cross bars between the long frames, and the free ends of the fifth linear driving devices are hinged to the cross bars between the two short frames.

The weight of the entering inclined plate frame and the getting-off inclined plate frame is reduced on the premise that the bearing strength is guaranteed by adopting two rectangular grid frames, the two rectangular grid frames are respectively suitable for wheels on two sides of a motor vehicle, the transverse rods help the two rectangular grid frames to synchronously lift or descend, the long frames and the short frames are arranged, the length of the entering inclined plate frame and the length of the getting-off inclined plate frame are reduced, and the situation that the length of the entering inclined plate frame and the length of the getting-off inclined plate frame are too high when the entering inclined plate frame and the getting-off inclined plate frame are folded to be in a vertical state and the equipment placement is affected is prevented.

Further, the first linear driving device, the second linear driving device, the third linear driving device, the fourth linear driving device and the fifth linear driving device are all hydraulic driving rods.

The hydraulic driving device has stronger power, mature control technology, more convenient use and lower cost.

Furthermore, the lifting platform is of a rectangular structure, and the other two opposite sides of the lifting platform are respectively provided with a generator and an office.

The generator and the office are more convenient for daily work use of the detection line.

The beneficial effects are that: according to the utility model, through the movable motor vehicle exhaust pollutant detection line, the tail gas can be rapidly and automatically unfolded or folded, the tail gas detection can be conveniently carried out on the local vehicle in a remote area, the current situation that residents of a local automobile detection station need to travel for hundreds of kilometers to detect the vehicle is solved, and the improvement of the living convenience in the remote area is facilitated.

Drawings

FIG. 1 is a front view of the overall structure of the present utility model;

FIG. 2 is a top view of the overall structure of the present utility model;

FIG. 3 is a front view of the overall structure of the present utility model after being collapsed;

FIG. 4 is a cross-sectional view of the structure of A-A in FIG. 2;

FIG. 5 is a cross-sectional view of the structure B-B of FIG. 2;

FIG. 6 is a schematic view of the structure of the entrance ramp frame of the present utility model;

fig. 7 is a schematic structural view of the getting-off ramp frame according to the present utility model.

Reference numerals: 1. a lifting frame; 101. a lifting platform; 102. a hydraulic lifting sleeve; 103. a telescopic support leg; 2. an exhaust gas pollutant detection device; 3. a track frame; 301. a track module; 3011. a planar plate; 3012. a frame body; 3013. a support rod; 302. the lower inclined plate frame; 3021. a fourth linear driving device; 303. a rectangular notch; 304. a third link; 305. a fourth link; 306. a third linear driving device; 4. a connecting frame; 401. a first link; 402. a second link; 403. a second linear driving device; 404. a connecting plate; 5. vehicle-entering inclined plate frame; 501. a first linear driving device; 502. a rectangular grid frame; 5021. a long frame; 5022. a short frame; 5023. abutting the support leg; 503. a cross bar; 504. a fifth linear driving device; 6. a generator; 7. an office.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present utility model, but is not intended to limit the present utility model.

Examples:

as shown in fig. 1 to 7, the embodiment provides a movable motor vehicle exhaust pollutant detection line, which comprises a lifting frame 1, wherein an exhaust pollutant detection device 2 is arranged on the lifting frame 1, a foldable track frame 3 is arranged on one side of the lifting frame 1, and the track frame 3 is hinged with the lifting frame 1; a connecting frame 4 is arranged on one side of the lifting frame 1, which is connected with the track frame 3; the middle parts of two sides of the lifting frame 1 are respectively hinged with a first connecting rod 401, one ends of two sides of the lifting frame 1, which are close to the connecting frame 4, are respectively hinged with a second connecting rod 402, the free ends of the first connecting rod 401 and the second connecting rod 402 on each side are respectively hinged with two ends of the lower part of the corresponding side of the connecting frame 4 to form a parallel four-bar mechanism, the middle parts of two sides of the lifting frame 1 are respectively hinged with a second linear driving device 403, the free ends of each second linear driving device 403 are hinged with the second connecting rod 402 on the corresponding side, and the middle part of the connecting frame 4 is hinged with the track frame 3.

The working process and principle of the structure are as follows:

firstly, the exhaust pollutant detection line is located on a large truck or a scooter, after the truck or the scooter drives the detection line to a region needing motor vehicle detection, the lifting frame 1 is firstly contacted with the ground downwards and drives the whole equipment to lift up so as to facilitate the truck or the scooter to leave, then the lifting frame 1 descends to the ground, then the second linear driving device 403 is matched with the first connecting rod 401 and the second connecting rod 402, the second linear driving device 403 linearly stretches, the second connecting rod 402 drives the first connecting rod 401 to deviate in a direction away from the lifting frame 1, the connecting frame 4 is moved to the horizontal ground from the upper side of the lifting frame 1, and then the folded rail frames 3 are sequentially unfolded, so that the placement of the detection line is realized, and therefore, the motor vehicle can conveniently travel to the lifting frame 1 through the rail frames 3 and carry out tail gas detection through the exhaust pollutant detection device 2, and after the detection is finished, the operation sequence in the folding production line is reverse to that in the unfolding process.

In another embodiment of the present utility model, as shown in fig. 1 to 3, the connection frame 4 includes two connection plates 404, the connection plates 404 have a rectangular plate structure, the two connection plates 404 are respectively located at two sides of the lifting frame 1, two ends of the lower portion of each connection plate 404 are respectively hinged with the first connection rod 401 and the second connection rod 402 at the corresponding sides, and the track frame 3 is disposed between the two connection plates 404 and fixedly connected with the two connection frames 4.

The two connection plates 404 facilitate smooth connection with both sides of the track frame 3, and one connection plate 404 corresponds to a set of the first connection rod 401 and the second connection rod 402, and the track frame 3 is disposed between the two connection plates 404, facilitating smooth transition on the lifting frame 1 when the track frame 3 is folded.

In another embodiment of the present utility model, as shown in fig. 1-5, the track frame 3 includes four track modules 301 and a lower car inclined plate frame 302, two sides of the track module 301 close to the lifting frame 1 are respectively connected with a connecting plate 404, a rectangular notch 303 is vertically opened in the middle of one end of the track module 301 far away from the lifting frame 1, a third linear driving device 306 is hinged in the center of the rectangular notch 303, a third connecting rod 304 and a fourth connecting rod 305 are hinged on two sides of the rectangular notch 303, the third connecting rod 304 and the fourth connecting rod 305 on the same side of the rectangular notch 303 are respectively hinged on two ends of the same side of the adjacent track module 301, the free end of the third linear driving device 306 is hinged with the middle of the fourth connecting rod 305, and the lower car inclined plate frame 302 is hinged with the track module 301 far away from the lifting frame 1.

The rectangular notch 303 is arranged, so that a movement space is provided for the third linear driving device 306, the third connecting rod 304 and the fourth connecting rod 305 to turn upwards, the track module 301, the adjacent track module 301 and the third connecting rod 304 and the fourth connecting rod 305 connected between the track module 301 form a parallel four-connecting-rod structure, the track module is conveniently changed into a horizontal or stacked state, the third linear driving device 306 provides driving force for unfolding and folding the track module 301, and the getting-off inclined plate frame 302 is beneficial to the vehicle to be driven out of the track frame 3.

In another embodiment of the present utility model, as shown in fig. 1-3, the lifting frame 1 comprises a lifting platform 101 and lifting mechanisms arranged at four corners of the lifting platform 101, wherein the lifting mechanisms comprise a hydraulic lifting sleeve 102 and a telescopic support 103, the hydraulic lifting sleeve 102 is vertically fixed on the plane of the lifting platform 101, the telescopic support 103 passes through the lifting platform 101, the telescopic support 103 is slidably arranged in the hydraulic lifting sleeve 102, and the four lifting mechanisms synchronously lift.

When the lifting platform 101 is driven to be taken down from the plate vehicle, firstly, hydraulic oil is filled in the hydraulic lifting sleeve 102, the telescopic support legs 103 extend downwards and are in contact with the ground, the telescopic support legs 103 extend continuously after contacting the ground, the bottom surface of the lifting platform 101 is separated from the plate surface of the plate vehicle, the plate vehicle is separated from the lifting platform 101, the hydraulic lifting sleeve 102 is decompressed, the telescopic support legs 103 retract synchronously, the bottom surface of the lifting platform 101 is in contact with the ground, and the folding sequence of the lifting platform 101 placed on the plate vehicle is opposite to the above sequence.

In another embodiment of the present utility model, as shown in fig. 1, 2, 3 and 5, the top surface of each track module 301 is a plane plate 3011 with a concave structure, two sides of the lower portion of each track module 301 are provided with a frame 3012 with a right trapezoid structure, the inclined edge of the frame 3012 is located at one side close to the lifting frame 1, the frame 3012 is provided with a plurality of support rods 3013, the support rods 3013 are vertically or obliquely arranged in the frame 3012, the third linear driving device 306, the third connecting rod 304 and the fourth connecting rod 305 are hinged with the frame 3012 respectively, and the third connecting rod 304 and the fourth connecting rod 305 are arranged in a dislocation manner without affecting each other.

The concave plane plates 3011 are matched with each other, so that the running of a motor vehicle and the mutual matching of each track module 301 are facilitated, the frame 3012 of the right trapezoid structure can not mutually influence the collision in the lifting and translation process of the track module 301, the stable operation of folding and unfolding is ensured, meanwhile, the support capability of the frame 3012 is improved due to the arrangement of the support rods 3013, and the frame 3012 is facilitated to provide better support force for the third linear driving device 306, the third connecting rod 304 and the fourth connecting rod 305.

In another embodiment of the present utility model, as shown in fig. 1 to 7, the other side of the lifting frame 1 opposite to the track frame 3 is hinged with a car-entering inclined plate frame 5, a first linear driving device 501 is connected between the car-entering inclined plate frame 5 and the lifting frame 1, one end of the first linear driving device 501 is hinged with the top surface of the lifting frame 1, and the middle position of the upper surface of the other end of the first linear driving device 501 is hinged with the other end of the upper surface of the car-entering inclined plate frame 5.

The arrangement of the car-entering inclined plate frame 5 is beneficial to the car to more conveniently get on one side of the lifting frame 1 and get out of the track frame 3, and the first linear driving device 501 is used for driving the car-entering inclined plate frame 5 to be folded upwards and put down horizontally.

In another embodiment of the present utility model, as shown in fig. 1 to 7, the lower ramp frame 302 is hinged to the lower surface of the planar plate 3011 on the side of the track module 301 away from the lifting frame 1, and a fourth linear driving device 3021 is hinged to the middle portion of the track module 301, and the free end of the fourth linear driving device 3021 is hinged to the middle portion of the lower surface of the lower ramp frame 302.

The fourth linear driving device 3021 is adopted to drive the lower vehicle inclined plate frame 302 to automatically unfold or fold, and the unfolding and folding can be performed only when the track modules 301 are in a stacked state.

In another embodiment of the present utility model, as shown in fig. 1-7, the entering inclined plate frame 5 and the getting-off inclined plate frame 302 each include two rectangular grid frames 502, the rectangular grid frames 502 of the entering inclined plate frame 5 are hinged with the lifting frame 1, the rectangular grid frames 502 of the getting-off inclined plate frame 302 are hinged with the track modules 301, a plurality of cross bars 503 are connected between the two rectangular grid frames 502, the cross bars 503 can also enhance the strength of the getting-off inclined plate frame 302 and the entering inclined plate frame 5, the free ends of the first linear driving devices 501 are hinged with the cross bars 503 of the entering inclined plate frame 5, and the free ends of the fourth linear driving devices 3021 are hinged with the cross bars 503 of the getting-off inclined plate frame 302; rectangular grid frame 502 includes long frame 5021 and short frame 5022, horizontal pole 503 distributes between two long frames 5021 and between two short frames 5022, articulates the one end that lift frame 1 was kept away from at long frame 5021, long frame 5021's lower surface is provided with a plurality of butt stabilizer blades 5023 near short frame 5022 one end, butt stabilizer blade 5023 articulates mutually with long frame 5021, play auxiliary stay's effect, prevent that motor vehicle weight from causing the damage to the connection between long frame 5021 and the short frame 5022, it has fifth sharp drive arrangement 504 to articulate on the horizontal pole 503 between two long frames 5021, the free end of fifth sharp drive arrangement 504 articulates with the horizontal pole 503 between two short frames 5022.

The two rectangular grid frames 502 are adopted by the car entering inclined plate frame 5 and the car getting-off inclined plate frame 302, the weight is reduced on the premise of ensuring the bearing strength, the two rectangular grid frames 502 are respectively suitable for two side wheels of a motor vehicle, the transverse rods 503 help the two rectangular grid frames 502 to synchronously lift or descend, the long frames 5021 and the short frames 5022 are arranged, the length of the car entering inclined plate frame 5 and the length of the car getting-off inclined plate frame 302 are further reduced, and the situation that when the car entering inclined plate frame 5 and the car getting-off inclined plate frame 302 are folded into a vertical state, the length of the car entering inclined plate frame and the length of the car entering inclined plate frame are too high and the equipment placement is affected is prevented.

In another embodiment of the present utility model, the first linear driving device 501, the second linear driving device 403, the third linear driving device 306, the fourth linear driving device 3021 and the fifth linear driving device 504 are all hydraulic driving rods.

The hydraulic driving device has stronger power, mature control technology, more convenient use and lower cost.

In another embodiment of the present utility model, as shown in fig. 2, the elevating platform 101 has a rectangular structure, and the other opposite sides of the elevating platform 101 are respectively provided with the generator 6 and the office 7. In this figure, the generator 6 and office 7 structure are not shown in a front view or other illustration, as are conventional structures, for ease of illustration of other structures, only the location and base footprint being shown in brief in fig. 2.

The generator 6 and the office 7 are more convenient for daily work use of the detection line.

Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The movable motor vehicle exhaust pollutant detection line is characterized by comprising a lifting frame, wherein an exhaust pollutant detection device is arranged on the lifting frame, a foldable track frame is arranged on one side of the lifting frame, and the track frame is hinged with the lifting frame; a connecting frame is arranged on one side of the lifting frame, which is connected with the track frame; the lifting frame is characterized in that first connecting rods are hinged to the middle positions of two sides of the lifting frame respectively, second connecting rods are hinged to one ends, close to the connecting frames, of two sides of the lifting frame respectively, free ends of the first connecting rods and the second connecting rods on each side are hinged to two lower ends of corresponding sides of the connecting frames respectively to form a parallel four-bar mechanism, second linear driving devices are hinged to the middle positions of two sides of the lifting frame respectively, the free ends of the second linear driving devices are hinged to the second connecting rods on the corresponding sides, and the middle of the connecting frames are hinged to the track frame.

2. The movable motor vehicle exhaust pollutant detection line according to claim 1, wherein the connecting frame comprises two connecting plates, the two connecting plates are respectively located at two sides of the lifting frame, two ends of the lower portion of each connecting plate are respectively hinged with a first connecting rod and a second connecting rod at corresponding sides, and the track frame is arranged between the two connecting plates and fixedly connected with the two connecting frames.

3. The movable motor vehicle exhaust pollutant detection line according to claim 2, wherein the track frame comprises a plurality of track modules and a lower inclined plate frame, two sides of the track module close to the lifting frame are respectively connected with the connecting plate, a rectangular notch is vertically formed in the middle of one end of the track module far away from the lifting frame, a third linear driving device is hinged to the central position of the rectangular notch, a third connecting rod and a fourth connecting rod are hinged to two sides of the rectangular notch, the third connecting rod and the fourth connecting rod on the same side of the rectangular notch are respectively hinged to two ends on the same side of the adjacent track module, the free end of the third linear driving device is hinged to the middle of the fourth connecting rod, and the lower inclined plate frame is hinged to the track module far away from the lifting frame.

4. The mobile motor vehicle exhaust pollutant detection line according to claim 1, wherein the lifting frame comprises a lifting platform and lifting mechanisms arranged at four corners of the lifting platform, the lifting mechanisms comprise hydraulic lifting sleeves and telescopic support legs, the hydraulic lifting sleeves are vertically fixed on a plane of the lifting platform, the telescopic support legs penetrate through the lifting platform, the telescopic support legs are slidably arranged in the hydraulic lifting sleeves, and the four lifting mechanisms are operated in a synchronous lifting manner.

5. A mobile motor vehicle exhaust pollutant detection line according to claim 3, wherein each of the track modules has a concave-shaped planar plate on its top surface, two sides of the lower portion of the track module are provided with a right trapezoid frame, the oblique side of the frame is located at a side close to the lifting frame, the frame is provided with a plurality of support rods, and the third linear driving device, the third connecting rod and the fourth connecting rod are respectively hinged with the frame.

6. The mobile motor vehicle exhaust pollutant detection line according to claim 5, wherein the lifting frame is hinged to the other side of the rail frame, a vehicle inlet inclined plate frame is connected between the vehicle inlet inclined plate frame and the lifting frame, one end of the first linear driving device is hinged to the top surface of the lifting frame, and the other end of the first linear driving device is hinged to the middle position of the upper surface of the vehicle inlet inclined plate frame.

7. The mobile automotive exhaust pollutant detection line according to claim 6, wherein the lower ramp frame is hinged to a lower surface of the planar plate on a side of the track module away from the lifting frame, a fourth linear driving device is hinged to a middle portion of the track module, and a free end of the fourth linear driving device is hinged to a middle portion of the lower surface of the lower ramp frame.

8. The mobile motor vehicle exhaust pollutant detection line according to claim 7, wherein the entrance ramp frame and the exit ramp frame each comprise two rectangular grid frames, the rectangular grid frames of the entrance ramp frame are hinged with the lifting frames, the rectangular grid frames of the exit ramp frame are hinged with the track modules, a plurality of cross bars are connected between the two rectangular grid frames, the free end of the first linear driving device is hinged with the cross bars of the entrance ramp frame, and the free end of the fourth linear driving device is hinged with the cross bars of the exit ramp frame; the rectangular grid frame comprises a long frame and a short frame, wherein the cross bars are distributed between the two long frames and between the two short frames, the cross bars are hinged to one end of the long frame, which is far away from the lifting frame, a plurality of butt support legs are arranged on the lower surface of the long frame, which is close to one end of the short frame, a fifth linear driving device is hinged to the cross bars between the long frames, and the free ends of the fifth linear driving devices are hinged to the cross bars between the two short frames.

9. The mobile automotive exhaust pollutant detection line of claim 8, wherein the first linear drive, the second linear drive, the third linear drive, the fourth linear drive, and the fifth linear drive are all hydraulic drive rods.

10. The mobile automotive exhaust pollutant detection line according to claim 4, wherein the lifting platform is of rectangular configuration, and the other opposite sides of the lifting platform are respectively provided with a generator and an office.