CN213067459U - Wheel arch detection system - Google Patents

Abstract

The utility model relates to a wheel arch detecting system for the wheel arch height to berthing the vehicle on load-bearing platform detects. The wheel arch detection system comprises two first detection devices and two second detection devices, wherein the two first detection devices are used for detecting one of the two front wheels and the two rear wheels, and the two second detection devices are used for detecting the other one of the two front wheels and the two rear wheels. The first detection equipment comprises a first lifting device and a first acquisition device assembled on the first lifting device. The first acquisition device comprises a first camera and a first light source projection unit assembled on the first camera. The second detection equipment comprises a transverse moving device, a second lifting device assembled on the transverse moving device and a second acquisition device assembled on the second lifting device. The second acquisition device comprises a second camera and a second light source projection unit assembled on the second camera.

Description

Wheel arch detection system

Technical Field

The utility model relates to a vehicle inspection technical field especially relates to a wheel arch detecting system.

Background

With the continuous improvement of the living standard of people, vehicles have been widely moved into the lives of people and become the best tool for people to ride instead of walk. After the vehicle is manufactured, the vehicle needs to be detected before leaving a factory, the detection before leaving the factory is the final link of vehicle leaving the factory, and the vehicle can flow into the market after all indexes are detected to be qualified.

For the measurement of the height of the vehicle body, the height of the wheel arch of the wheel is usually measured, and then the height of the vehicle body is calculated according to the height of the wheel arch. In the prior art, the most common mode is to measure the height of the wheel arch directly by manually measuring the height of the wheel arch by a measuring ruler and then calculate the height of the vehicle body, however, the numerical error measured by the method is large, and the automation degree and the efficiency are low.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a wheel arch detecting system for detecting the height of a wheel arch of a vehicle parked on a carrying platform, the wheel arch detecting system including two first detecting devices for detecting one of two front wheels and two rear wheels and two second detecting devices for detecting the other one of the two front wheels and the two rear wheels; wherein the content of the first and second substances,

the first detection equipment comprises a first lifting device and a first acquisition device assembled on the first lifting device, wherein the first acquisition device comprises a first camera and a first light source projection unit assembled on the first camera;

the second detection device comprises a transverse moving device, a second lifting device assembled on the transverse moving device and a second acquisition device assembled on the second lifting device, wherein the second acquisition device comprises a second camera and a second light source projection unit assembled on the second camera.

Optionally, the two first detecting devices are respectively used for detecting the two front wheels, and the two second detecting devices are respectively used for detecting the two rear wheels.

Optionally, each of the first detecting devices is covered with a first protecting frame, and each of the second detecting devices is covered with a second protecting frame.

Optionally, the first lifting device comprises a first lifting base, an adjusting screw, two guide upright posts, an upper fixing seat, a hand wheel, a fastening handle and a scale member; wherein the content of the first and second substances,

the adjusting screw and the two guide stand columns are vertically assembled on the first lifting base; the upper fixing seat is assembled on the adjusting screw rod and the upper end surfaces of the two guide stand columns; the hand wheel is assembled on the upper fixing seat and is fixedly connected to the upper end of the adjusting screw rod; the fastening handle is assembled on the upper fixing seat and used for fastening the adjusting screw rod; the scale piece is vertically arranged, and two ends of the scale piece are respectively fixed on the first lifting base and the upper fixing base.

Optionally, the first camera is assembled to the adjusting screw and the two guide columns by a camera adjusting plate moving up and down.

Optionally, the second lifting device is slidably connected to the lateral moving device through a sliding assembly.

Optionally, the transverse moving device comprises a driving unit, a sliding rail unit and a transverse screw rod; wherein the content of the first and second substances,

the slide rail unit is arranged along a direction perpendicular to a connecting line of the two front wheels or a connecting line of the two rear wheels, and two symmetrical slide rails are arranged on the slide rail unit; the driving unit is arranged at one end of the sliding rail unit along the length direction of the sliding rail unit; the transverse screw rod is arranged between the two slide rails and is in transmission connection with the driving unit.

Optionally, the sliding assembly comprises a nut seat and two sliding blocks; the two sliding blocks are oppositely arranged and are respectively connected with the two sliding rails in a sliding manner; the nut seat is arranged between the two sliding blocks and is connected to the transverse screw rod in a sliding manner; the second lifting device is assembled on the two sliding blocks and the nut seat through a sliding piece, and the second lifting device reciprocates along the length direction of the transverse moving device under the driving of the driving unit.

Optionally, the lateral moving device further comprises a limiting plate; the limiting plate is covered on the sliding rail unit and is inserted between the sliding piece and the second lifting device.

Optionally, a control device is included, the control device being communicatively and/or electrically connected to the first detection device and the second detection device.

The embodiment of the utility model provides a technical scheme can include following beneficial effect:

the embodiment of the utility model provides a wheel arch detecting system for highly detecting the wheel arch of the vehicle of berthing on load-bearing platform. First elevating gear can drive first collection system up-and-down motion, can adjust first collection system's height, and then can realize that first collection system's first camera and first light source throw the unit and can be used for measuring the wheel arch height of one in front wheel and the rear wheel jointly. The second lifting device can drive the second acquisition device to move up and down, the height of the second acquisition device can be adjusted, and then the second camera and the second light source projection unit of the second acquisition device can be jointly used for measuring the wheel arch height of the other one of the front wheel and the rear wheel. And the transverse moving device can simultaneously drive the second lifting device and the second collecting device to move along the length direction of the vehicle, so that the measurement flexibility can be improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic view of a wheel arch detection system, a bearing platform and a vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic view of the wheel arch detecting system and the loading platform shown in FIG. 1;

FIG. 3 is a schematic structural view of the first inspection apparatus and the first protective frame shown in FIG. 1;

FIG. 4 is a schematic view of the first testing device shown in FIG. 3 in one state;

FIG. 5 is a schematic view of the structure of FIG. 4 in another state;

FIG. 6 is a schematic structural view of the second inspection apparatus and the second protective frame shown in FIG. 1;

FIG. 7 is a schematic structural diagram of the second detecting apparatus shown in FIG. 6;

FIG. 8 is a schematic structural view of the lateral shifting apparatus shown in FIG. 7;

FIG. 9 is a schematic view of the internal structure of the lateral shifting device shown in FIG. 8;

fig. 10 is a schematic structural view of the lateral shifting device and the sliding assembly shown in fig. 9.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims does not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Fig. 1 is a schematic view of a position relationship between a wheel arch detection system and a load-bearing platform and a vehicle provided by the embodiment of the present invention. Fig. 2 is a schematic diagram illustrating a position relationship between the wheel arch detecting system and the carrying platform shown in fig. 1. Fig. 3 is a schematic structural view of the first detection apparatus and the first shield frame shown in fig. 1. Fig. 4 is a schematic structural diagram of the first detection device shown in fig. 3 in one state. Fig. 5 is a schematic structural view of fig. 4 in another state. Fig. 6 is a schematic structural view of the second inspection apparatus and the second shield frame shown in fig. 1. Fig. 7 is a schematic structural view of the second detecting apparatus shown in fig. 6. Fig. 8 is a schematic structural view of the lateral shifting device shown in fig. 7. Fig. 9 is a schematic structural view of the inside of the lateral shifting device shown in fig. 8. Fig. 10 is a schematic structural view of the lateral shifting device and the sliding assembly shown in fig. 9.

Referring to fig. 1 to 10, the embodiment of the present invention provides a wheel arch detection system for detecting the wheel arch height of a vehicle 2 parked on a load-bearing platform 1. The wheel arch detection system includes two first detection devices 3 for detecting one of the two front wheels and the two rear wheels and two second detection devices 4 for detecting the other. The first detecting device 3 includes a first lifting device 31 and a first collecting device 32 assembled on the first lifting device 31. The first capturing device 32 includes a first camera 321 and a first light source projecting unit 322 assembled to the first camera 321. The second detecting apparatus 4 includes a lateral moving device 43, a second lifting device 41 assembled to the lateral moving device 43, and a second collecting device 42 assembled to the second lifting device 41. The second capturing device 42 includes a second camera 421 and a second light source projecting unit 422 assembled to the second camera 421.

The embodiment of the utility model provides a wheel arch detecting system, first elevating gear 31 can drive first collection system 32 up-and-down motion, can highly adjust first collection system 32, and then can realize that first camera 321 and first light source of first collection system 32 throw unit 322 can be used for measuring wheel arch height of one in front wheel and the rear wheel jointly. The second lifting device 41 can drive the second collecting device 42 to move up and down, and can adjust the height of the second collecting device 42, so that the second camera 421 and the second light source projection unit 422 of the second collecting device 42 can be commonly used for measuring the wheel arch height of the other one of the front wheel and the rear wheel. And the transverse moving device 43 can drive the second lifting device 41 and the second collecting device 42 to move along the length direction of the vehicle 2 at the same time, so that the flexibility of measurement can be improved.

Referring to fig. 1 and 2, the load-bearing platform 1 may comprise a plurality of keel profiles and a plurality of platform plates. Specifically, a plurality of keel sectional materials can be built to form a square frame structure, and a plurality of platform plates are laid on the upper surface layer of the frame structure. The vehicle 2 is parked on the platform plate, the bearing capacity of the frame structure is strong, and the ground cannot be easily damaged after the vehicle 2 is borne. The center of the load bearing platform 1 along the length direction thereof is provided with a platform center line 11, and the platform center line 11 divides the load bearing platform 1 into two symmetrical parts. Correspondingly, the vehicle 2 also has a vehicle centerline 21 along its length, the vehicle centerline 21 also dividing the vehicle 2 into two symmetrical sections. The utility model discloses a first centering mechanism 12 and second centering mechanism 13 that are used for centering location to vehicle 2. The first centering mechanism 12 is used for pushing against the two front wheels. The second centering mechanism 13 is used for pushing the two rear wheels. When the vehicle 2 is parked on the loading platform 1, and the two front wheels and the two rear wheels thereof correspond to the positions of the first centering mechanism 12 and the second centering mechanism 13, respectively, the first centering mechanism 12 and the second centering mechanism 13 are synchronously started and respectively push against the two front wheels and the two rear wheels, until when the vehicle center line 21 and the platform center line 11 coincide, it is determined that the vehicle 2 is centered. After the centering and positioning of the vehicle 2 is finished, the two first detection devices 3 and the two second detection devices 4 are synchronously operated to respectively measure the heights of the wheel arches of the two front wheels and the wheel arches of the two rear wheels.

In one embodiment, the two first detection devices 3 are respectively used for detecting the two front wheels, and the two second detection devices 4 are respectively used for detecting the two rear wheels. Specifically, the two first detection devices 3 are respectively disposed on two sides of the bearing platform 1, and are symmetrical with respect to the platform center line 11. The two first detecting devices 3 correspond to the position of the first centering mechanism 12, that is, the first centering mechanism 12 is located on the line connecting the two first detecting devices 3. In this way, the two first detection devices 3 can be used to measure the square height of the wheel arch of the two front wheels, respectively. Correspondingly, the two second detection devices 4 are also respectively arranged at two sides of the bearing platform 1 and are symmetrical relative to the platform center line 11. The two second detecting devices 4 correspond to the positions of the second centering mechanism 13, that is, the second centering mechanism 13 is located on the connecting line of the two second detecting devices 4. In this way, the two second detection devices 4 can be used to measure the square height of the wheel arch of the two rear wheels, respectively. In this way, the two first detection devices 3 and the two second detection devices 4 operate synchronously, the four wheel arches of the vehicle 2 can be measured synchronously, the measurement data of the four wheel arches can be obtained at one time, and then the height of the vehicle body can be calculated. And the correction degree of the height of the vehicle body can be calculated according to the height difference values of the four wheel arches, the vehicle 2 with the height difference exceeding the threshold value is continuously adjusted, and then the measurement is carried out until the height difference is within the error range. The efficiency and the precision of the operation are high, the cost is low, and the quality of the delivered vehicle 2 can be guaranteed to reach the standard. Of course, in another embodiment, the two first detecting devices 3 may be used for detecting the two rear wheels, respectively, and the two second detecting devices 4 may be used for detecting the two front wheels, respectively, without being limited in particular.

Referring to fig. 3, each first detecting device 3 is covered with a first protective frame 33. The first protection frame 33 is a hollow square frame structure and is used for protecting the first detection device 3. The end facing the vehicle 2 has an opening, in which the first detection device 3 is located and through which the height measurement of the wheel arch of the front wheel is carried out. Referring to fig. 6, each second detecting device 4 is also covered with a second protective frame 44, which has the same function as the first protective frame 33. The first shielding frame 33 is sized to fit the first detection device 3 and the second shielding frame 44 is sized to fit the second detection device 4. The first protection frame 33 and the second protection frame 44 have the same functions and structures except for their different sizes, and are not described in detail herein.

The first detection device 3 includes a first lifting device 31 and a first collecting device 32 assembled to the first lifting device 31. The first capturing device 32 includes a first camera 321 and a first light source projecting unit 322 assembled to the first camera 321.

In one embodiment, referring to fig. 1 to 5, the first lifting device 31 includes a first lifting base 311, an adjusting screw 312, two guiding columns 313, an upper fixing seat 314, a handwheel 315, a fastening handle 316 and a scale member 317. The first lifting base 311 may be a square plate structure, and the adjusting screw 312 and the two guiding columns 313 are vertically assembled on the first lifting base 311. The length of the adjusting screw 312 is equal to that of the two guiding columns 313, the adjusting screw 312 is located between the two guiding columns 313, and the connecting line direction of the adjusting screw 312 and the two guiding columns is perpendicular to the central line 11 direction of the platform. The upper fixing base 314 is assembled on the upper end surfaces of the adjusting screw 312 and the two guiding columns 313, and is vertically arranged corresponding to the first lifting base 311. The first camera 321 is assembled to the adjusting screw 312 and the two guiding columns 313 through a camera adjusting plate 38 to move up and down. Specifically, the camera adjusting plate 38 may also be a square plate structure, and a nut adjusting seat 381 adapted to the adjusting screw 312 and two guide post sliding seats 382 adapted to the two guide posts 313 are respectively assembled at positions corresponding to the adjusting screw 312 and the two guide posts 313. Thus, the camera adjustment plate 38 can drive the first camera 321 and the first light source projection unit 322 to move up and down along the first lifting device 31. Further, a handwheel 315 is assembled on the upper end surface of the upper fixing seat 314 and is fixedly connected to the upper end of the adjusting screw 312. The hand wheel 315 is manually rotated to drive the camera adjusting plate 38 to move up and down, so as to adjust the height positions of the first camera 321 and the first light source projection unit 322. When the position is adjusted, the handwheel 315 stops rotating. In order to prevent the camera adjustment plate 38 from easily moving up and down, a fastening handle 316 may be provided to limit the up and down movement of the camera adjustment plate 38. Specifically, the fastening handle 316 is assembled to the upper fixing seat 314, and a threaded hole is formed in a side edge of the upper fixing seat 314 and penetrates to the position of the adjusting screw 312. The tightening handle 316 is screwed into the threaded hole, and when the end thereof abuts against the side wall of the adjusting screw 312, the rotation of the adjusting screw 312 is restricted, thereby restricting the vertical movement of the camera adjusting plate 38. The scale member 317 is vertically disposed, and both ends thereof are respectively fixed to the first elevating base 311 and the upper fixing base 314. The scale member 317 is provided with scales along its length for determining the distance of displacement of the camera adjustment plate 38 during its up and down movement, thereby improving accuracy. In this embodiment, the first elevating base 311 may be assembled to an adjusting assembly for fixing with the ground. Specifically, in a preferred example, the adjusting assembly may include a first adjusting base 34, a second adjusting base 35, a third adjusting base 36 and a fourth adjusting base 37, which are stacked in sequence from bottom to top. The first elevating base 311 is assembled on the fourth adjusting base 37. However, the specific structure and the specific shape of the adjusting component are not limited, and may be defined according to the actual application scenario, which is not described herein.

Further, in this embodiment, a control device is further included. The control device is communicatively and/or electrically connected to the first detection device 3. In particular, the first camera 321 of the first detection device 3 is communicatively and/or electrically connected to the control device. And the first light source projection unit 322 may be assembled right above the first camera 321. The first light source projection unit 322 and the first camera 321 are both disposed toward the front wheel direction. In a preferred example, the first light source projection unit 322 may be a lateral light source emitter capable of emitting a horizontal linear light beam that is tangential to the wheel arch of the front wheel. The control apparatus issues an image capture instruction to the first camera 321, and the first camera 321 captures image information of the front wheel and transmits the image information to the control apparatus. The control device recognizes the vertical distance between the straight light beam and the bottom of the front wheel, thereby measuring the height of the wheel arch and further deducing the height of the vehicle body. By adopting the mode, the height of the wheel arch can be quickly and accurately measured, the cost for measuring the wheel arch can be effectively reduced, and the assembly quality of the vehicle 2 is improved. Of course, in other examples, the height of the wheel arch may be calculated in other manners, and is not limited thereto.

The second detecting apparatus 4 can be used for measuring the height of the wheel arch of the rear wheel, and comprises a lateral moving device 43, a second lifting device 41 assembled on the lateral moving device 43, and a second collecting device 42 assembled on the second lifting device 41. The second capturing device 42 includes a second camera 421 and a second light source projecting unit 422 assembled to the second camera 421. It should be noted that the structure and function of the second lifting device 41 are the same as those of the first lifting device 31, and reference is made to the above description, which is not described in detail herein. The second capturing device 42 includes a second camera 421 and a second light source projection unit 422, which are identical in structure and function to the first capturing device 32. And the control device is also communicatively and/or electrically connected to the second camera 421 of the second detection device. Reference is also made in detail to the above description, which is not described in detail here.

In one embodiment, referring to fig. 1, 2 and 6-10, the second lifting device 41 is slidably connected to the lateral moving device 43 through a sliding assembly 45. The second lifting device 41 is driven by the transverse moving device 43 to reciprocate in a direction parallel to the platform centerline 11. Thus, the measurement range of the second lifting device 41 can be expanded. Specifically, the lateral moving device 43 includes a driving unit 431, a rail unit 432, and a lateral screw 433. The sliding rail unit 432 is a strip structure and is disposed along a direction perpendicular to a connecting line of the two front wheels or a connecting line of the two rear wheels. The slide rail unit 432 is provided with two slide rails 4321 which are symmetrical along the center line of the length direction of the slide rail unit 432, and the two slide rails 4321 extend to the two opposite ends of the slide rail unit 432. The driving unit 431 is provided at one end of the rail unit 432 in the longitudinal direction thereof. The transverse screw 433 is disposed between the two sliding rails 4321, extends to two opposite ends of the sliding rail unit 432, and is connected to the driving unit 431 in a transmission manner. Further, the sliding assembly 45 includes a nut base 451 and two sliding blocks 452. The two sliding blocks 452 are disposed opposite to each other and slidably connected to the two sliding rails 4321, respectively. The nut base 451 is disposed between the two sliders 452 and slidably connected to the transverse screw 433. The second lifting device 41 is assembled on the two sliders 452 and the nut base 451 through a slider 46. Specifically, the sliding member 46 is fixedly mounted on the two sliding blocks 452 and a nut base 451. The second elevating base 411 of the second elevating device 41 is assembled to the slider 46. The second elevating device 41 may reciprocate in a length direction of the traverse device 43 by the driving of the driving unit 431. Further, the lateral moving device 43 further includes a limit plate 434. The limiting plate 434 covers the sliding rail unit 432 and is matched with the upper end surface of the sliding rail unit 432. The slider 46 may have a U-shape, and the limit plate 434 is interposed between the slider 46 and the second lifting base 411 of the second lifting device 41. In this way, the second lifting device 41 cannot easily fall off the lateral moving device 43 under the limit of the limit plate 434 during the process of moving along the lateral moving device 43.

Further, the lateral moving device 43 can be fixed to the ground by two bottom supporting seats 47. The specific structure and the specific shape of the bottom support seat 47 are not limited, and may be defined according to the actual application scenario, which is not described herein.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A wheel arch detection system is used for detecting the height of a wheel arch of a vehicle parked on a bearing platform and is characterized by comprising two first detection devices used for detecting one of two front wheels and two rear wheels and two second detection devices used for detecting the other one; wherein the content of the first and second substances,

the first detection equipment comprises a first lifting device and a first acquisition device assembled on the first lifting device, wherein the first acquisition device comprises a first camera and a first light source projection unit assembled on the first camera;

the second detection device comprises a transverse moving device, a second lifting device assembled on the transverse moving device and a second acquisition device assembled on the second lifting device, wherein the second acquisition device comprises a second camera and a second light source projection unit assembled on the second camera.

2. The wheel arch detecting system of claim 1, wherein the two first detecting devices are respectively used for detecting the two front wheels, and the two second detecting devices are respectively used for detecting the two rear wheels.

3. The wheel arch detecting system of claim 1, wherein each of the first detecting devices is covered with a first protecting frame, and each of the second detecting devices is covered with a second protecting frame.

4. The wheel arch detection system of claim 1, wherein the first lifting device comprises a first lifting base, an adjusting screw, two guide columns, an upper fixing seat, a hand wheel, a fastening handle and a scale member; wherein the content of the first and second substances,

the adjusting screw and the two guide stand columns are vertically assembled on the first lifting base; the upper fixing seat is assembled on the adjusting screw rod and the upper end surfaces of the two guide stand columns; the hand wheel is assembled on the upper fixing seat and is fixedly connected to the upper end of the adjusting screw rod; the fastening handle is assembled on the upper fixing seat and used for fastening the adjusting screw rod; the scale piece is vertically arranged, and two ends of the scale piece are respectively fixed on the first lifting base and the upper fixing base.

5. The wheel arch detection system of claim 4, wherein the first camera is assembled to the adjusting screw and the two guide posts by a camera adjusting plate moving up and down.

6. The wheel arch detection system of claim 1, wherein the second lifting device is slidably coupled to the lateral movement device via a sliding assembly.

7. The wheel arch detection system of claim 6, wherein the lateral moving device comprises a driving unit, a sliding rail unit and a lateral screw; wherein the content of the first and second substances,

the slide rail unit is arranged along a direction perpendicular to a connecting line of the two front wheels or a connecting line of the two rear wheels, and two symmetrical slide rails are arranged on the slide rail unit; the driving unit is arranged at one end of the sliding rail unit along the length direction of the sliding rail unit; the transverse screw rod is arranged between the two slide rails and is in transmission connection with the driving unit.

8. The wheel arch detection system of claim 7 wherein the sliding assembly comprises a nut seat and two sliding blocks; the two sliding blocks are oppositely arranged and are respectively connected with the two sliding rails in a sliding manner; the nut seat is arranged between the two sliding blocks and is connected to the transverse screw rod in a sliding manner; the second lifting device is assembled on the two sliding blocks and the nut seat through a sliding piece, and the second lifting device reciprocates along the length direction of the transverse moving device under the driving of the driving unit.

9. The wheel arch detection system of claim 8, wherein the lateral movement device further comprises a limiting plate; the limiting plate is covered on the sliding rail unit and is inserted between the sliding piece and the second lifting device.

10. A wheel arch detection system according to claim 1, comprising a control device communicatively and/or electrically connected to the first detection device and the second detection device.

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