Fixing device of motor vehicle detection platform

Abstract

The invention belongs to the technical field of motor vehicle detection, and discloses a motor vehicle detection platform fixing device which is technically characterized by comprising a base, a placement cavity is formed in the surface of the base, a bearing table is arranged in the placement cavity, a running track is arranged on the surface of the bearing table, and a maintenance cavity is formed in the middle of the bearing table; a first limiting protection mechanism matched with a driving track is arranged on the surface of the bearing table, the first limiting protection mechanism comprises a limiting block, a positioning assembly and a first adjusting assembly, stand columns are fixedly installed on the periphery of the containing cavity, and a second limiting protection mechanism matched with the stand columns is arranged on the surface of the bearing table; the second limiting protection mechanism comprises a clamping assembly and a second adjusting assembly, the clamping assembly and the second adjusting assembly are arranged to be matched with each other, the multiple sets of stand columns can be controlled to conduct anti-falling protection on the bearing table, and the bearing table is effectively prevented from directly falling off when the lifting mechanism breaks down.

Description

Technical Field

[0001] The present invention relates to the technical field of motor vehicle detection, and specifically to a fixing device for a motor vehicle detection platform. Background Art

[0002] After the production and use of existing motor vehicles, it is necessary to detect various performances of the motor vehicles. For example, when detecting whether the parts are aged, when detecting the bottom of the motor vehicle, the motor vehicle will be lifted by a lifting device, and the lifting device is driven by a lifting mechanism, so that the lifting platform lifts and lowers parallel to the ground.

[0003] When the existing lifting platform is in use, it lacks necessary protective measures and is only supported and protected by the lifting mechanism at the bottom. The stability is poor. When the lifting mechanism fails or there is an operation error, the lifting platform is prone to directly lose weight and move down sharply, affecting the personal safety of the staff below, and the vehicle is prone to slide off the surface of the lifting platform, resulting in poor use effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a fixing device for a motor vehicle detection platform to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A fixing device for a motor vehicle detection platform includes a base, the surface of the base is flush with the ground surface, a placement cavity is provided on the surface of the base, a bearing platform is arranged in the placement cavity, a lifting mechanism connected to the bearing platform is arranged in the base, and the lifting mechanism is used to control the bearing platform to move in the vertical direction. Two groups of juxtaposed driving tracks are arranged on the surface of the bearing platform, a maintenance cavity is provided in the middle of the bearing platform, and a first limit protection mechanism matched with the driving tracks is arranged on the surface of the bearing platform. The first limit protection mechanism includes limit blocks, a positioning component and a first adjustment component. Multiple groups of limit blocks are provided and are respectively located at both ends of the driving tracks. The positioning component is located on the surface of the bearing platform and is connected to the limit blocks. The first adjustment component is located in the bearing platform and is connected to the positioning component. The first adjustment component adjusts the relative position of the limit blocks and the driving tracks by cooperating with the positioning component. Columns are fixedly installed around the placement cavity, and the columns are slidably connected to the bearing platform in the vertical direction. A second limit protection mechanism matched with the columns is arranged on the surface of the bearing platform. The second limit protection mechanism includes a clamping component and a second adjustment component. The clamping component is located on the surface of the bearing platform and is connected to the columns. The second adjustment component is located in the bearing platform and is connected to the clamping component. The second adjustment component adjusts the relative position of the bearing platform and the columns by cooperating with the clamping component.

[0006] As a further solution of the present invention: The positioning component includes multiple groups of chutes respectively located at both ends of the driving track and opened on the surface of the bearing platform. A sliding block is slidably installed in the chute. The sliding block extends above the chute and is connected to a limiting block. A baffle is fixedly installed in the chute. An extrusion spring is fixedly installed on the surface of the baffle. The telescopic end of the extrusion spring is connected to the sliding block.

[0007] As a further solution of the present invention: The first adjustment component includes two sets of relatively distributed winding rods rotatably installed inside the bearing platform. The winding rods pass through the two chutes on the same side of the driving track. A first pulling rope is fixedly installed on the side wall of the sliding block. One end of the first pulling rope away from the sliding block is connected to the winding rod. One end of the winding rod extends outside the bearing platform and is fixedly installed with a control gear disk. The two control gear disks are jointly connected with a synchronous belt. A handle is arranged on the surface of one control gear disk. A limiting member is arranged on the side wall of the bearing platform and is matched with the control gear disk.

[0008] As a further solution of the present invention: The limiting member includes multiple groups of positioning holes arranged in an annular and equally spaced manner on the surface of one control gear disk. A positioning rod is telescopically arranged on the side wall of the bearing platform and is matched with the positioning holes.

[0009] As a further solution of the present invention: The clamping component includes a fixed ring fixedly installed on the surface of the bearing platform and sleeved outside the column. Multiple groups of support rods distributed in a ring are rotatably installed on the inner side wall of the fixed ring. A control spring is fixedly installed on the inner side wall of the fixed ring. The telescopic end of the control spring is connected to the support rod. Multiple groups of support holes arranged side by side in the vertical direction and matched with the support rods are opened on the surface of the column.

[0010] As a further solution of the present invention: The second adjustment component includes a control cavity opened on the bottom wall of the bearing platform and sleeved outside the column. Multiple wire grooves communicating with the control cavity are opened downward on the surface of the bearing platform. A second pulling rope is fixedly installed on the side wall of the support rod. One end of the second pulling rope away from the support rod passes through the fixed ring and the wire groove and extends into the control cavity and is fixedly installed with a bottom ring. The bottom ring is made of a magnetic material. An electromagnetic ring matched with the bottom ring is fixedly installed at the bottom of the control cavity. A controller is fixedly installed on the side wall of the bearing platform. The electromagnetic ring is electrically connected to the controller.

[0011] As a further solution of the present invention: A protection wheel matched with the second pulling rope is rotatably installed in the wire groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: By arranging the positioning component and the first adjusting component to cooperate with each other, the relative positions of multiple groups of limit blocks and the driving track can be adjusted conveniently, facilitating the anti-slip protection of the wheels of the motor vehicle and effectively improving the stability during vehicle maintenance.

[0013] By arranging the clamping component and the second adjusting component to cooperate with each other, multiple groups of columns can be controlled to provide anti-falling protection for the bearing platform, effectively preventing the bearing platform from falling directly when the lifting mechanism fails, and effectively improving the stability and safety performance of the bearing platform. It solves the problem that when the lifting mechanism fails or there is an operation error, the lifting platform is prone to directly lose weight and move downward rapidly, affecting the personal safety of the staff below. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic three-dimensional structure of a fixing device for a motor vehicle detection platform provided in an embodiment of the present invention Figure One 。

[0015] Figure 2 Schematic three-dimensional structure of a fixing device for a motor vehicle detection platform provided in an embodiment of the present invention Figure Two 。

[0016] Figure 3 Schematic three-dimensional structure of a fixing device for a motor vehicle detection platform provided in an embodiment of the present invention Figure Three 。

[0017] Figure 4 Schematic front view structure diagram of a fixing device for a motor vehicle detection platform provided in an embodiment of the present invention.

[0018] Figure 5 Schematic top view structure diagram of the bearing platform in a fixing device for a motor vehicle detection platform provided in an embodiment of the present invention.

[0019] Figure 6 is Figure 1 Enlarged structure diagram of A in

[0020] Figure 7 is Figure 2 Enlarged structure diagram of B in

[0021] Figure 8 is Figure 4 Enlarged structure diagram of C in

[0022] Wherein: 1 - base, 11 - placement cavity, 2 - carrier platform, 21 - traveling track, 22 - maintenance cavity, 3 - first limit protection mechanism, 31 - limit block, 32 - positioning component, 321 - chute, 322 - baffle, 323 - compression spring, 324 - sliding block, 33 - first adjustment component, 331 - winding rod, 332 - first pulling rope, 333 - control gear disc, 334 - synchronous belt, 335 - handle, 4 - limiting piece, 41 - positioning hole, 42 - positioning rod, 5 - column, 6 - second limit protection mechanism, 61 - clamping component, 611 - fixed ring, 612 - support rod, 613 - control spring, 614 - support hole, 62 - second adjustment component, 621 - control cavity, 622 - wire groove, 623 - second pulling rope, 624 - bottom ring, 625 - electromagnetic ring, 626 - controller, 7 - protection wheel, 8 - lifting mechanism. Detailed implementation manners

[0023] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0024] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0025] Such as Figure 1 、 Figure 2 、 Figure 4As shown in the figure, it is a structural diagram of a fixing device for a motor vehicle detection platform provided by an embodiment of the present invention, including a base 1. The surface of the base 1 is flush with the ground surface. A placement cavity 11 is provided on the surface of the base 1. A bearing platform 2 is arranged in the placement cavity 11. A lifting mechanism 8 connected to the bearing platform 2 is arranged in the base 1. The lifting mechanism 8 is used to control the vertical movement of the bearing platform 2. Two groups of juxtaposed driving tracks 21 are arranged on the surface of the bearing platform 2. A maintenance cavity 22 is provided in the middle of the bearing platform 2. A first limit protection mechanism 3 that cooperates with the driving tracks 21 is arranged on the surface of the bearing platform 2. The first limit protection mechanism 3 includes limit blocks 31, a positioning component 32 and a first adjustment component 33. Multiple groups of limit blocks 31 are arranged and are respectively located at both ends of the driving tracks 21. The positioning component 32 is located on the surface of the bearing platform 2 and is connected to the limit blocks 31. The first adjustment component 33 is located in the bearing platform 2 and is connected to the positioning component 32. The first adjustment component 33 adjusts the relative position of the limit blocks 31 and the driving tracks 21 by cooperating with the positioning component 32. Columns 5 are fixedly installed around the placement cavity 11. The columns 5 are slidably connected to the bearing platform 2 in the vertical direction. A second limit protection mechanism 6 that cooperates with the columns 5 is arranged on the surface of the bearing platform 2. The second limit protection mechanism 6 includes a clamping component 61 and a second adjustment component 62. The clamping component 61 is located on the surface of the bearing platform 2 and is connected to the columns 5. The second adjustment component 62 is located in the bearing platform 2 and is connected to the clamping component 61. The second adjustment component 62 adjusts the relative position of the bearing platform 2 and the columns 5 by cooperating with the clamping component 61.

[0026] Initially, the entire loading platform 2 is located within the placement cavity 11. The positioning component 32 positions the limiting block 31. At this time, the limiting block 31 is outside the driving track 21. When it is necessary to perform maintenance and inspection on a motor vehicle, the wheels of the motor vehicle are controlled to travel along the driving track 21 to the surface of the loading platform 2. After the entire motor vehicle has moved to the surface of the loading platform 2, the first adjustment component 33 and the positioning component 32 cooperate with each other to control multiple groups of limiting blocks 31 to move to positions directly opposite to both ends of the driving track 21 respectively. At this time, multiple groups of limiting blocks 31 are respectively outside the front and rear wheels of the motor vehicle, and multiple groups of limiting blocks 31 can provide anti-slip protection for the motor vehicle on the surface of the loading platform 2. The lifting mechanism 8 pushes the loading platform 2 to move vertically upward. When the loading platform 2 moves upward, it slides upward along the surface of the column 5. After the loading platform 2 has moved to an appropriate height, the staff can conveniently perform maintenance and inspection on the bottom of the motor vehicle within the maintenance cavity 22. When the lifting mechanism 8 fails and cannot effectively support the loading platform 2, the loading platform 2 and the motor vehicle move downward under the action of gravity. The second adjustment component 62 and the clamping component 61 cooperate with each other to timely fixedly connect the column 5 and the loading platform 2. At this time, multiple groups of columns 5 can timely support and position the loading platform 2, effectively preventing the loading platform 2 from continuously moving downward, thereby improving the safety of the staff when performing maintenance and inspection below the loading platform 2. When the lifting mechanism 8 does not fail, after the maintenance and inspection are completed, the lifting mechanism 8 controls the loading platform 2 to move downward. At this time, the clamping component 61 controls the column 5 not to interfere with the downward movement process of the loading platform 2.

[0027] As Figure 1 , Figure 4 , Figure 5 , Figure 7 shown, as a preferred embodiment of the present invention, the positioning component 32 includes multiple groups of chutes 321 respectively located at both ends of the driving track 21 and opened on the surface of the loading platform 2. A sliding block 324 is slidably installed within the chute 321. The sliding block 324 extends above the chute 321 and is connected to the limiting block 31. A baffle 322 is fixedly installed within the chute 321. An extrusion spring 323 is fixedly installed on the surface of the baffle 322. The telescopic end of the extrusion spring 323 is connected to the sliding block 324.

[0028] Initially, the compression spring 323 exerts a thrust on the sliding block 324, causing the sliding block 324 to be at one end of the chute 321 away from the driving track 21. The sliding block 324 positions the limiting block 31. At this time, the limiting block 31 is outside the driving track 21. The wheels of the motor vehicle can travel along the driving track 21 to the surface of the bearing platform 2. After the motor vehicle moves to the surface of the bearing platform 2, the first adjusting assembly 33 controls the sliding block 324 to move in the chute 321. The sliding block 324 drives the limiting block 31 to move synchronously on the surface of the bearing platform 2 to a position opposite to both ends of the driving track 21. At this time, the limiting block 31 can provide anti-slip protection for the wheels of the motor vehicle. After the maintenance is completed, the first adjusting assembly 33 releases the pulling force on the sliding block 324, and the compression spring 323 pushes the sliding block 324 to move reversely to its original position. At this time, the limiting block 31 moves to the outside of the driving track 21 again, and the motor vehicle can conveniently drive to the outside of the bearing platform 2.

[0029] As Figure 1 , Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown in

[0030] When it is necessary to adjust the position of the limiting block 31, the staff holds the handle 335 and rotates the control gear disk 333. The control gear disk 333 cooperates with the synchronous belt 334 to drive the two control gear disks 333 to rotate synchronously. The control gear disk 333 drives the winding rod 331 to rotate in the bearing platform 2. When the winding rod 331 rotates, it can wind up the first pulling rope 332. The first pulling rope 332 pulls the sliding block 324 to move in the chute 321. After the sliding block 324 moves to the appropriate position, the limiting member 4 fixes the position of the control gear disk 333 on the side wall of the bearing platform 2. When it is necessary to drive the motor vehicle out after the maintenance is completed, the limiting member 4 releases the restriction on the control gear disk 333. Holding the handle 335 drives the control gear disk 333 to rotate reversely. The control gear disk 333 drives the winding rod 331 to rotate synchronously in the reverse direction. At this time, the compression spring 323 pushes the sliding block 324 to move reversely in the chute 321 to its original position.

[0031] As Figure 3 、 Figure 6 shown, as a preferred embodiment of the present invention, the limiting member 4 includes a plurality of positioning holes 41 formed on the surface of a set of control gear discs 333 and distributed at equal intervals in a circular shape, and a positioning rod 42 that is telescopically arranged on the side wall of the bearing platform 2 and is matched with the positioning holes 41.

[0032] When the positioning rod 42 is inserted into the positioning hole 41, the position of the control gear disc 333 can be fixed at the side wall of the bearing platform 2.

[0033] As Figure 1 、 Figure 4 、 Figure 7 、 Figure 8 shown, as a preferred embodiment of the present invention, the clamping assembly 61 includes a fixing ring 611 fixedly installed on the surface of the bearing platform 2 and sleeved outside the column 5, a plurality of support rods 612 distributed in a circular shape are rotatably installed on the inner side wall of the fixing ring 611, a control spring 613 is fixedly installed on the inner side wall of the fixing ring 611, the telescopic end of the control spring 613 is connected to the support rod 612, and a plurality of support holes 614 that are arranged side by side in the vertical direction and are matched with the support rods 612 are formed on the surface of the column 5.

[0034] When the bearing platform 2 moves upward, the bearing platform 2 cooperates with the fixing ring 611, which can drive the support rods 612 to move upward synchronously outside the column 5. The control spring 613 applies a thrust to the support rods 612. The bottom end of the support rod 612 fits against the side wall of the column 5. The support rods 612 will not interfere with the entire upward movement process of the bearing platform 2. When the bearing platform 2 moves to an appropriate height and the motor vehicle is being repaired, the lifting mechanism 8 supports and positions the bearing platform 2. When the lifting mechanism 8 fails and cannot effectively support, when the bearing platform 2 falls downward, the support rods 612 automatically insert into the support holes 614 on the side wall of the column 5. The support rods 612 cooperate with the support holes 614, and the bearing platform 2 can be effectively supported and positioned on the surface of the column 5, avoiding the continuous fall of the bearing platform 2 from causing danger to the staff below. When the lifting mechanism 8 does not fail, when it is necessary to control the bearing platform 2 to move downward after the repair is completed, the second adjustment assembly 62 adjusts the position of the support rods 612 inside the fixing ring 611, so that the support rods 612 are separated from the side wall of the column 5. At this time, the bearing platform 2 drives the support rods 612 to move downward synchronously, and the support rods 612 will not insert into the support holes 614 when moving downward.

[0035] As Figure 1 、 Figure 3 、 Figure 4 、 Figure 7 、 Figure 8As shown, as a preferred embodiment of the present invention, the second adjustment assembly 62 includes a control cavity 621 formed in the bottom wall of the carrier 2 and sleeved outside the column 5. A plurality of wire grooves 622 communicating with the control cavity 621 are formed downward on the surface of the carrier 2. A second pulling rope 623 is fixedly installed on the side wall of the support rod 612. One end of the second pulling rope 623 away from the support rod 612 passes through the fixed ring 611 and the wire groove 622 and extends into the control cavity 621 and is fixedly installed with a bottom ring 624. The bottom ring 624 is made of a magnetic material. An electromagnetic ring 625 cooperating with the bottom ring 624 is fixedly installed at the bottom of the control cavity 621. A controller 626 is fixedly installed on the side wall of the carrier 2. The electromagnetic ring 625 is electrically connected to the controller 626.

[0036] Initially, the controller 626 controls the electromagnetic ring 625 to be in a power-off state. At this time, the electromagnetic ring 625 does not generate a magnetic attraction force on the bottom ring 624. When the carrier 2 moves upward, the support rod 612 will not interfere with the rising process. When it is necessary to control the carrier 2 to move downward after the maintenance is completed, the controller 626 controls the electromagnetic ring 625 to be in a power-on state. The electromagnetic ring 625 generates a magnetic attraction force to pull the bottom ring 624 to move downward in the control cavity 621. The bottom ring 624 cooperates with the second pulling rope 623 to pull the support rod 612 to rotate towards the inner side wall of the fixed ring 611. At this time, the support rod 612 is separated from the column 5, and the support rod 612 will not interfere with the downward movement of the carrier 2.

[0037] As Figure 8 shown, as a preferred embodiment of the present invention, a protection wheel 7 cooperating with the second pulling rope 623 is rotatably installed in the wire groove 622.

[0038] The working principle of the present invention is: Initially, the entire carrier 2 is located in the placement cavity 11. The compression spring 323 exerts a thrust on the sliding block 324, so that the sliding block 324 is located at one end of the sliding groove 321 away from the driving track 21. At this time, the limiting block 31 is outside the driving track 21. When it is necessary to perform maintenance and inspection on a motor vehicle, control the wheels of the motor vehicle to travel along the driving track 21 to the surface of the carrier 2. After the entire motor vehicle moves to the surface of the carrier 2, the staff holds the handle 335 and pushes the control gear disk 333 to rotate. The control gear disk 333 cooperates with the synchronous belt 334 to drive the two control gear disks 333 to rotate synchronously. The control gear disk 333 drives the winding rod 331 to rotate in the carrier 2. When the winding rod 331 rotates, it can wind up the first pulling rope 332. The first pulling rope 332 pulls the sliding block 324 to move in the sliding groove 321. The sliding block 324 drives the limiting block 31 to move synchronously on the surface of the carrier 2 to a position opposite to both ends of the driving track 21. At this time, the limiting block 31 can provide anti-slip protection for the wheels of the motor vehicle.

[0039] The lifting mechanism 8 pushes the carrying platform 2 to move vertically upward. When the carrying platform 2 moves upward, it slides upward along the surface of the column 5. After the carrying platform 2 moves to an appropriate height, the staff can conveniently repair and detect the bottom of the motor vehicle in the maintenance cavity 22. When the lifting mechanism 8 fails and cannot effectively support the carrying platform 2, when the carrying platform 2 falls downward, the support rod 612 automatically inserts into the support hole 614 on the side wall of the column 5. The support rod 612 and the support hole 614 cooperate with each other, and can effectively support and position the carrying platform 2 on the surface of the column 5, avoiding the danger caused by the continuous fall of the carrying platform 2 to the staff below. When the lifting mechanism 8 does not fail, when it is necessary to control the carrying platform 2 to move downward after the maintenance is completed, the controller 626 controls the electromagnetic ring 625 to be in the energized state. The electromagnetic ring 625 generates magnetic suction force and then pulls the bottom ring 624 to move downward in the control cavity 621. The bottom ring 624 and the second pulling rope 623 cooperate with each other, and can pull the support rod 612 to rotate towards the inner side wall of the fixed ring 611. At this time, the support rod 612 is separated from the column 5, and the support rod 612 will not interfere with the downward movement of the carrying platform 2.

[0040] The above describes the preferred embodiments of the present invention in detail. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A fixing device for a motor vehicle detection platform, comprising a base, the surface of the base being flush with the ground surface, a placement cavity being provided on the surface of the base, a bearing platform being provided in the placement cavity, a lifting mechanism connected to the bearing platform being provided in the base, the lifting mechanism being used to control the bearing platform to move in the vertical direction, characterized in that, Two sets of parallel driving tracks are arranged on the surface of the bearing platform, and a maintenance cavity is formed in the middle of the bearing platform; A first limit protection mechanism that cooperates with the driving track is arranged on the surface of the bearing platform. The first limit protection mechanism includes limit blocks, a positioning component and a first adjustment component. Multiple groups of limit blocks are arranged and are respectively located at both ends of the driving track; The positioning component is located on the surface of the bearing platform and is connected to the limit block. The first adjustment component is located inside the bearing platform and is connected to the positioning component. The first adjustment component adjusts the relative position of the limit block and the driving track by cooperating with the positioning component; Columns are fixedly installed around the placement cavity respectively, and the columns are slidably connected to the bearing platform in the vertical direction; A second limit protection mechanism that cooperates with the column is arranged on the surface of the bearing platform. The second limit protection mechanism includes a clamping component and a second adjustment component. The clamping component is located on the surface of the bearing platform and is connected to the column. The second adjustment component is located inside the bearing platform and is connected to the clamping component. The second adjustment component adjusts the relative position of the bearing platform and the column by cooperating with the clamping component.

2. The fixing device of a motor vehicle detection platform according to claim 1, characterized in that The positioning component includes multiple groups of chutes respectively located at both ends of the driving track and formed on the surface of the bearing platform. A sliding block is slidably installed in the chute. The sliding block extends above the chute and is connected to the limit block. A baffle is fixedly installed in the chute, and an extrusion spring is fixedly installed on the surface of the baffle. The telescopic end of the extrusion spring is connected to the sliding block.

3. The fixing device of a motor vehicle detection platform according to claim 2, characterized in that, The first adjustment component includes two sets of relatively distributed winding rods rotatably installed inside the bearing platform. The winding rods pass through the two chutes on the same side of the driving track. A first pulling rope is fixedly installed on the side wall of the sliding block. One end of the first pulling rope away from the sliding block is connected to the winding rod. One end of the winding rod extends outside the bearing platform and is fixedly installed with a control gear disc. The two control gear discs are jointly connected with a synchronous belt. A handle is arranged on the surface of one control gear disc, and a limiting part that cooperates with the control gear disc is arranged on the side wall of the bearing platform.

4. The fixing device of a motor vehicle detection platform according to claim 3, characterized in that, The limiting part includes multiple groups of positioning holes formed on the surface of one control gear disc and distributed at equal intervals in a ring shape. A positioning rod that cooperates with the positioning holes is telescopically arranged on the side wall of the bearing platform.

5. The fixing device of a motor vehicle detection platform according to claim 1, characterized in that, The clamping component includes a fixing ring fixedly installed on the surface of the bearing platform and sleeved outside the column. Multiple groups of support rods distributed in a ring shape are rotatably installed on the inner side wall of the fixing ring. A control spring is fixedly installed on the inner side wall of the fixing ring. The telescopic end of the control spring is connected to the support rod. Multiple groups of support holes that are arranged in parallel in the vertical direction and cooperate with the support rod are formed on the surface of the column.

6. The fixing device of a motor vehicle detection platform according to claim 5, characterized in that, The second adjustment component includes a control cavity formed in the bottom wall of the bearing platform and sleeved outside the column. A plurality of wire grooves communicating with the control cavity are formed downward on the surface of the bearing platform. A second pulling rope is fixedly installed on the side wall of the support rod. One end of the second pulling rope away from the support rod passes through the fixed ring and the wire groove and extends into the control cavity and is fixedly installed with a bottom ring. The bottom ring is made of a magnetic material. An electromagnetic ring matched with the bottom ring is fixedly installed at the bottom of the control cavity. A controller is fixedly installed on the side wall of the bearing platform. The electromagnetic ring is electrically connected to the controller.

7. The fixing device of a motor vehicle detection platform according to claim 6, characterized in that, A protection wheel matched with the second pulling rope is rotatably installed in the wire groove.

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