Chassis transporting device with adjusting function

Abstract

The invention relates to the technical field of vehicle mounting equipment, in particular to a chassis transportation device with an adjusting function. Comprising a supporting plate, a supporting frame is fixed to the bottom of the supporting plate, first rotating shafts are rotationally connected to the two ends of the bottom of the supporting frame correspondingly, connecting columns are rotationally connected to the two sides of the first rotating shafts correspondingly, and moving wheels are rotationally connected to the sides, away from the first rotating shafts, of the connecting columns; a rotating disc is fixed to the outer side of the rotating shaft. According to the chassis transportation device with the adjusting function, through cooperation of the supporting plate, the second-stage electric cylinder, the electric push rod, the balance weight mechanism and the adjusting mechanism, when the supporting plate upwarps and positions the chassis through the push rod of the second-stage electric cylinder, through cooperation of the balance weight mechanism, the chassis can be conveyed to the second-stage electric cylinder; and the situation that the supporting plate is unstable due to single-side inclination generated by the weight of the second-stage electric cylinder is prevented, and then the supporting plate drives the chassis to move through the moving wheels to complete transportation.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle installation equipment, and in particular to a vehicle chassis transportation device with an adjustment function. Background Art

[0002] Electric vehicles are vehicles that use onboard power as a power source, use motors to drive wheels, and comply with various requirements of road traffic and safety regulations. As they have less impact on the environment than traditional vehicles, their prospects are widely optimistic. The chassis of electric vehicles requires the use of transportation devices during the processing.

[0003] The patent document with the announcement number (CN218594362U) discloses a wheeled chassis device and a transport trolley, including a frame and a moving wheel set. The frame has a through cavity for a crossbeam to pass through, and the through cavity passes through along the Y-axis direction, and a gap is formed between at least one side of the cavity wall of the through cavity and the corresponding outer wall of the crossbeam. The moving wheel set includes a wheel frame and a roller, and the wheel frame is rotatably connected to the frame to guide the moving direction of the transport trolley, and the roller is connected to the wheel frame. A gap is formed between at least one side of the cavity wall of the through cavity and the corresponding outer wall of the crossbeam, so that the crossbeam can move in the through cavity relative to the frame. Therefore, when the transport trolley passes through a rugged road section, due to the gap between the cavity wall of the through cavity and the outer wall of the crossbeam, the wheeled chassis device and the vehicle body can move relative to each other, thereby reducing the occurrence of the moving wheel set or the rotating wheel being suspended; When using the above technology, it was found that the following technical problems exist in the prior art: the existing transportation device is not convenient to adjust according to needs during use. Therefore, a vehicle chassis transportation device with an adjustment function is designed to provide another technical solution to the above technical problem. Summary of the invention

[0004] Based on this, it is necessary to provide a vehicle chassis transportation device with an adjustment function to address the above technical problems, so as to solve the technical problem that the existing transportation devices are not convenient to adjust according to needs during use.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A vehicle chassis transportation device with an adjustment function comprises a support plate, a support frame is fixed to the bottom of the support plate, both ends of the bottom of the support frame are rotatably connected to a first rotating shaft, both sides of the first rotating shaft are rotatably connected to connecting columns, the connecting column is rotatably connected to a moving wheel on a side away from the first rotating shaft, one end of the top of the support plate is rotatably connected to the rotating shaft, a rotating disk is fixed to the outside of the rotating shaft, a secondary electric cylinder is fixed to the top of the rotating disk, and the other end of the top of the support plate is rotatably connected to an electric push rod, and the push rod of the electric push rod is rotatably connected to the rotating plate.

[0006] As a preferred embodiment of the vehicle chassis transportation device with adjustment function provided by the present invention, a counterweight mechanism is installed at the other end of the support plate, and the counterweight mechanism includes a counterweight frame, a positioning frame, a lifting block and a compression spring. The counterweight frame is slidably connected to the support plate, wherein a positioning frame is slidably connected to the outer side of the first rotating shaft located away from one end of the secondary electric cylinder, the positioning frame is slidably connected to the counterweight frame, and a lifting block is slidably connected inside the counterweight frame, the lifting block is slidably connected to the positioning frame, and a compression spring is fixed to the bottom of the lifting block.

[0007] As a preferred implementation of the vehicle chassis transport device with adjustment function provided by the present invention, the positioning frame is in a U-shape.

[0008] As a preferred implementation of the vehicle chassis transportation device with adjustment function provided by the present invention, an extrusion slope is provided at one end of the top of the lifting block.

[0009] As a preferred embodiment of the vehicle chassis transportation device with adjustment function provided by the present invention, a height limiting assembly is installed at one end of the counterweight frame and located between the support plate and the positioning frame. The height limiting assembly includes a height baffle, a connecting plate, a second rotating shaft, a threaded section, a rotating column, a first bevel gear and a second bevel gear. The interiors of both sides of one end of the height baffle are slidably connected with the connecting plate, the connecting plate is slidably connected with the counterweight frame, the interior of the height baffle is rotatably connected with the second rotating shaft, and threaded sections are provided on both sides of the outside of the second rotating shaft, the outer side of the threaded section is threadedly connected with the connecting plate, and the thread rotation directions of the two threaded sections are opposite, and the interior of the height baffle away from one end of the counterweight frame is rotatably connected with the rotating column, one end of the rotating column is fixed with the first bevel gear, one end of the first bevel gear is meshedly connected with the second bevel gear, and the interior of the second bevel gear is fixed to the second rotating shaft.

[0010] As a preferred embodiment of the vehicle chassis transportation device with adjustment function provided by the present invention, one end of the first rotating shaft located at the end of the support plate away from the counterweight frame is rotatably connected to a connecting rod, one end of the two connecting rods is rotatably connected to a pulling rod, one end of the pulling rod is provided with an armrest, and an adjustment mechanism for adjusting the distance between the armrest and the pulling rod is installed on the pulling rod.

[0011] As a preferred embodiment of the vehicle chassis transportation device with adjustment function provided by the present invention, the adjustment mechanism includes a sliding column, a limit block, an extrusion block, a sliding block and a return spring. The pull rod is slidably connected to the sliding column inside, and the sliding column is fixed to the armrest. Sliding blocks are symmetrically slidably connected on both sides of the pull rod and located on the outside of the sliding column. A return spring is fixed between the sliding block and the pull rod. Extrusion blocks are fixed at both ends of the sliding column and located on the top of the sliding block. A limit block is fixed at the end of the pull rod close to the armrest, and the limit block is slidably connected to the sliding column.

[0012] As a preferred embodiment of the vehicle chassis transportation device with adjustment function provided by the present invention, a first sliding groove is opened inside the sliding column, and second sliding grooves are evenly opened inside the sliding column and on one side of the first sliding groove, the first sliding groove and the second sliding groove are connected, and the limit block and the first sliding groove, as well as the limit block and the second sliding groove are all slidably connected.

[0013] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0014] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects: The present invention provides a vehicle chassis transport device with an adjustment function. Through the cooperation of a support plate, a secondary electric cylinder, an electric push rod, a counterweight mechanism and an adjustment mechanism, when the support plate is lifted and positioned by the push rod of the secondary electric cylinder, the counterweight mechanism is used to prevent the support plate from being unstable due to unilateral tilt caused by the weight of the secondary electric cylinder, so that the support plate drives the vehicle chassis to move through the moving wheels to complete the transportation. Through the coordination of the counterweight frame, the positioning frame, the lifting block and the height baffle, when the counterweight frame is installed at one end of the support plate, the counterweight block placed inside the counterweight frame can offset the weight of the secondary electric cylinder at the end of the support plate away from the counterweight frame, preventing the support plate from being suspended on one side, thereby making the use of the support plate more balanced and stable; Through the cooperation of the connecting plate, the threaded section and the rotating column, the rotation of the rotating column drives the connecting plate to translate through the threaded section, so that the two connecting plates enter the interior of the counterweight frame and move close to each other, thereby firmly connecting the height baffle plate and the counterweight frame; Through the cooperation of the pulling rod, the sliding column and the extrusion block, the armrest drives the sliding column to rotate, and the sliding column rotates to make the second sliding groove disengage from the limit block, so that the sliding column can be extended and retracted inside the pulling rod, and the position of the armrest can be adjusted according to usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a rotation schematic diagram of the secondary electric cylinder of the present invention; Figure 3 It is a structural schematic diagram of the support frame of the present invention; Figure 4 It is a schematic diagram of the internal structure of the counterweight frame of the present invention; Figure 5 This is a schematic diagram of the internal structure of the height baffle of the present invention; Figure 6 It is a structural schematic diagram of the pull rod of the present invention; Figure 7 It is a structural schematic diagram of the sliding column of the present invention; Figure 8 It is a structural schematic diagram of the limit block of the present invention; Fig. 9 It is a structural schematic diagram of the first sliding groove of the present invention; Fig.10 is a schematic diagram of the cooperation between the first connecting shaft and the moving wheel; Fig.11 It is a structural schematic diagram of the counterweight frame.

[0017] In the figure: 1. support plate; 2. support frame; 3. first rotating shaft; 4. connecting column; 5. moving wheel; 6. rotating shaft; 7. rotating disk; 8. secondary electric cylinder; 9. electric push rod; 10. counterweight frame; 11. pulling rod; 12. positioning frame; 13. lifting block; 14. extrusion ramp; 15. compression spring; 16. height baffle; 17. connecting plate; 18. second rotating shaft; 19. threaded section; 20. rotating column; 21. first bevel gear; 22. second bevel gear; 23. connecting rod; 24. sliding column; 25. handrail; 26. limit block; 27. extrusion block; 28. sliding block; 29. ​​return spring; 30. first sliding groove; 31. second sliding groove. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings. Example

[0022] Reference Figure 1-Figure 5 , 10, 11, a vehicle chassis transport device with an adjustment function, comprising a support plate 1, a support frame 2 is fixed to the bottom of the support plate 1, both ends of the bottom of the support frame 2 are rotatably connected to a first rotating shaft 3, so that the first rotating shaft 3 can rotate around the axis inside the support plate 1, both sides of the first rotating shaft 3 are rotatably connected to a connecting column 4, and a side of the connecting column 4 away from the first rotating shaft 3 is rotatably connected to a moving wheel 5, so that the connecting column 4 can perform a plane rotation at both ends of the first rotating shaft 3 to adjust the angle between the moving wheel 5 and the support plate 1; More specifically, see Fig.10 The first rotating shaft has U-shaped joints 301 at both ends, and the flat end 401 of the connecting column 4 is inserted into the U-shaped joint and is rotatably connected through the pivot 302.

[0023] One end of the top of the support plate 1 is rotatably connected to a rotating shaft 6, a rotating disk 7 is fixed to the outside of the rotating shaft 6, a secondary electric cylinder 8 is fixed to the top of the rotating disk 7, so that the secondary electric cylinder 8 can rotate around the rotating shaft 6 to adjust the angle through the rotating disk 7, and the other end of the top of the support plate 1 is rotatably connected to an electric push rod 9, and the push rod of the electric push rod 9 is rotatably connected to the rotating disk 7, so that the operation of the electric push rod 9 drives the rotating disk 7 to rotate around the rotating shaft 6; More specifically, an extension arm 701 extends radially from the rotating disk, and the electric push rod is hinged to the extension arm, thereby expanding the rotation angle of the rotating disk. The rear end of the electric push rod is rotatably connected to the two ear plates 101.

[0024] A counterweight mechanism is installed at the other end of the support plate 1, and the counterweight mechanism balances and stabilizes the support plate 1 through the movement of the support plate 1. The counterweight mechanism includes a counterweight frame 10, a positioning frame 12, a lifting block 13 and a compression spring 15. The counterweight frame 10 is slidably connected to the support plate 1, and a counterweight block is placed inside the top of the counterweight frame 10, so that the top of one end of the counterweight frame 10 is located outside the top of the support plate 1 when installed, and the counterweight frame 10 prevents the secondary electric cylinder 8 from being too heavy, causing one side of the support plate 1 to be suspended in the air, wherein a positioning frame 12 is slidably connected to the outside of the first rotating shaft 3 at one end away from the secondary electric cylinder 8, and the positioning frame 12 is U-shaped, and the positioning frame 12 is slidably connected to the counterweight frame 10, so that the positioning frame 12 passes through the outside of the first rotating shaft 3 and enters the inside of the counterweight frame 10; In other embodiments, different counterweight objects can be placed inside the top of the counterweight rack 10 .

[0025] The counterweight frame 10 is internally slidably connected with a lifting block 13, and the lifting block 13 is slidably connected with the positioning frame 12, so that when the lifting block 13 enters the interior of the positioning frame 12, the positioning frame 12 cannot be separated from the counterweight frame 10 at this time, and the lifting block 13 can be moved down through the rectangular groove 1011 on one side of the counterweight frame 10. An extrusion slope 14 is provided at one end of the top of the lifting block 13, so that when the positioning frame 12 enters the interior of the counterweight frame 10, the lifting block 13 is squeezed by the extrusion slope 14. A compression spring 15 is fixed at the bottom of the lifting block 13, so that the descent of the lifting block 13 drives the compression spring 15 to be compressed, and the lifting block 13 is reset by the rebound of the compression spring 15 after being compressed; A height limiting assembly is installed at one end of the counterweight frame 10 and is located between the support plate 1 and the positioning frame 12. The height limiting assembly includes a height baffle 16, a connecting plate 17, a second rotating shaft 18, a threaded section 19, a rotating column 20, a first bevel gear 21 and a second bevel gear 22. The interiors of both sides of one end of the height baffle 16 are slidably connected with connecting plates 17, and the two connecting plates 17 are symmetrically arranged. The connecting plate 17 is slidably connected to the counterweight frame 10, so that after the connecting plate 17 translates into the interior of the counterweight frame 10, the height baffle 16 is fixed to the counterweight frame 10 through the approaching movement of the two connecting plates 17. The interior of the height baffle 16 is rotatably connected with the second rotating shaft 18, and both sides of the exterior of the second rotating shaft 18 are provided with threaded sections 19. The outer sides of the threaded sections 19 are threadedly connected to the connecting plate 17, and the thread rotation directions of the two threaded sections 19 are opposite, so that the movement of the threaded sections 19 drives the two connecting plates 17 to move in the opposite direction; The height baffle 16 is internally rotatably connected to one end of the counterweight frame 10, so that an external hexagonal wrench can directly drive the rotating column 20 to rotate. A first bevel gear 21 is fixed to one end of the rotating column 20, and a second bevel gear 22 is meshedly connected to one end of the first bevel gear 21. The interior of the second bevel gear 22 is fixed to the second rotating shaft 18, so that the rotation of the rotating column 20 drives the second rotating shaft 18 to rotate through the first bevel gear 21 and the second bevel gear 22.

[0026] Among them, a first connecting plate 1012 extends from the left side of the upper end face of the counterweight frame 10, and the connecting plate is pressed on the support plate. The first connecting plate has two grooves 1015, and the ear plate is located in the grooves to limit the breeding frame. The left end face of the counterweight frame is provided with a first groove 1013 and a second groove 1014. There are four first grooves and four second grooves, and every two first grooves and second grooves constitute a groove group. The two grooves in the groove group of the first groove are spaced apart in the front-to-back direction, and the two grooves in the groove group of the second groove are spaced apart in the up-and-down direction, and the second groove located at the bottom is connected to the rectangular groove.

[0027] Each height limit assembly corresponds to a groove group of a first groove, and the two connecting plates 17 thereon are inserted into the corresponding two first grooves and clamped and fixed. After fixation, the upper end surface of the height baffle (box structure) contacts and cooperates with the lower end surface of the support plate, thereby keeping the counterweight frame stable on the support plate.

[0028] The use process of the vehicle chassis transportation device with adjustment function provided by the present invention is as follows: before use, the counterweight frame 10 is installed on the top of the other end of the support plate 1 by sliding one end, and then the positioning frame 12 enters the interior of the counterweight frame 10 by sliding with the corresponding first rotating shaft 3, and the positioning frame 12 is allowed to enter and squeeze the lifting block 13 through the extrusion inclined surface 14, so that the lifting block 13 descends and drives the compression spring 15 to compress, and the lifting block 13 enters the interior of the positioning frame 12 through the rebound after the compression of the compression spring 15. At this time, the installation of the counterweight frame 10 on one end of the support plate 1 is positioned, and then the height baffle 16 is placed between the positioning frame 12 and the support plate 1, and is installed through the sliding connection of the connecting plate 17 with the counterweight frame 10, and then the rotation of the rotating column 20 is driven by an external tool to drive the first bevel gear 21 to rotate, so that the first bevel gear 21 The rotation drives the second bevel gear 22 to rotate, and the rotation of the second bevel gear 22 drives the two threaded segments 19 to rotate through the second rotating shaft 18, and the rotation of the two threaded segments 19 drives the two threaded connecting plates 17 to move closer, so that the height baffle 16 is assembled and fixed to the counterweight frame 10, and the movement of the support plate 1 increases the weight of the support plate 1 at the other end of the secondary electric cylinder 8 through the counterweight frame 10, thereby preventing the support plate 1 from being suspended on one side due to the excessive weight of the secondary electric cylinder 8, and the chassis is tilted and positioned by the work of the secondary electric cylinder 8. At this time, through the work of the electric push rod 9, the output end of the electric push rod 9 drives the rotating disk 7 to rotate around the rotating shaft 6, and the rotating disk 7 is rotated to drive the secondary electric cylinder 8 to adjust the angle, thereby pulling the chassis to a position where the support plate 1 is easy to move. At this time, the chassis is transported by the rotation of the moving wheel 5. Example

[0029] Reference Figure 6-Figure 9 , a vehicle chassis transport device with an adjustment function, wherein one end of the first rotating shaft 3 at one end of the support plate 1 away from the counterweight frame 10 is rotatably connected to a connecting rod 23, one end of the two connecting rods 23 is rotatably connected to a pulling rod 11, so that the support plate 1 is moved by the movement of the pulling rod 11, and an armrest 25 is arranged at one end of the pulling rod 11, and then the pulling rod 11 is driven to move by pulling the armrest 25, and an adjustment mechanism for adjusting the distance between the armrest 25 and the pulling rod 11 is installed on the pulling rod 11; The adjusting mechanism includes a slide post 24, a limit block 26, an extrusion block 27, a sliding block 28 and a return spring 29. The slide post 24 is slidably connected to the interior of the pull rod 11, and the slide post 24 is fixed to the handrail 25, so that the slide post 24 can slide and rotate inside the pull rod 11. The sliding blocks 28 are symmetrically slidably connected on both sides of the pull rod 11 and located on the outside of the slide post 24. A return spring 29 is fixed between the sliding block 28 and the pull rod 11, so that the sliding block 28 slides between the slide post 24 and the pull rod 11 after being squeezed by an external force and drives the return spring 29 to be compressed. Extrusion blocks 27 are fixed at both ends of the slide post 24 and located on the top of the sliding block 28, so that the rotation of the slide post 24 drives the sliding block 28 to move through the extrusion block 27, thereby driving the return spring 29 to be compressed. At the same time, the slide post 24 can be reset and rotated by the rebound of the return spring 29 after being compressed. A limit block 26 is fixed at one end of the pull rod 11 near the armrest 25, and the limit block 26 is slidably connected to the sliding column 24, so that the sliding of the sliding column 24 in the pull rod 11 is positioned by sliding the limit block 26 inside the sliding column 24, and a first sliding groove 30 is opened inside the sliding column 24, and second sliding grooves 31 are evenly opened inside the sliding column 24 and on one side of the first sliding groove 30, the first sliding groove 30 and the second sliding groove 31 are connected, and the limit block 26 and the first sliding groove 30, as well as the limit block 26 and the second sliding groove 31 are all slidably connected, so that when the limit block 26 is located in the second sliding groove 31, the sliding column 24 can only rotate inside the pull rod 11, and when the sliding column 24 is located in the first sliding groove 30, the sliding column 24 can slide inside the pull rod 11 to adjust the distance between the armrest 25 and the pull rod 11.

[0030] The use process of the vehicle chassis transport device with adjustment function provided by the present invention is as follows: when it is necessary to pull the moving wheel 5 on the support plate 1 to rotate for movement, at this time, according to the use requirements, the handrail 25 is rotated, so that the handrail 25 drives the sliding column 24 to rotate inside the pulling rod 11, and the rotation of the sliding column 24 causes the limit block 26 to slide inside the second sliding groove 31 into the first sliding groove 30, and at the same time, the rotation of the sliding column 24 drives the extrusion block 27 to rotate, so that the extrusion block 27 rotates to squeeze the sliding block 28, so that the sliding block 28 drives the return spring 29 to compress, and then pulls the armrest 25, so that the slide column 24 slides inside the pulling rod 11 to adjust the distance between the armrest 25 and the pulling rod 11. When it is adjusted to an appropriate length, the rotation of the armrest 25 is released, so that the armrest 25 is reset by the rebound after being compressed by the return spring 29, and then the limit block 26 enters the second sliding groove 31. At this time, the slide column 24 cannot slide horizontally inside the pulling rod 11, and then the armrest 25 is pulled to drive the support plate 1 to move through the pulling rod 11.

[0031] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vehicle chassis transport device with an adjustment function, characterized in that: The invention comprises a support plate (1), a support frame (2) being fixed at the bottom of the support plate (1), both ends of the bottom of the support frame (2) being rotatably connected to a first rotating shaft (3), both sides of the first rotating shaft (3) being rotatably connected to connecting columns (4), a side of the connecting column (4) away from the first rotating shaft (3) being rotatably connected to a moving wheel (5), one end of the top of the support plate (1) being rotatably connected to a rotating shaft (6), a rotating disk (7) being fixed on the outer side of the rotating shaft (6), a secondary electric cylinder (8) being fixed on the top of the rotating disk (7), and the other end of the top of the support plate (1) being rotatably connected to an electric push rod (9), the push rod of the electric push rod (9) being rotatably connected to the rotating disk (7).

2. A vehicle chassis transport device with adjustment function according to claim 1, characterized in that: A counterweight mechanism is installed at the other end of the support plate (1), and the counterweight mechanism comprises a counterweight frame (10), a positioning frame (12), a lifting block (13) and a compression spring (15). The counterweight frame (10) is slidably connected to the support plate (1), wherein the positioning frame (12) is slidably connected to the outer side of the first rotating shaft (3) at the end away from the secondary electric cylinder (8), the positioning frame (12) is slidably connected to the counterweight frame (10), the lifting block (13) is slidably connected inside the counterweight frame (10), the lifting block (13) is slidably connected to the positioning frame (12), and the bottom of the lifting block (13) is fixed with a compression spring (15).

3. The vehicle chassis transport device with adjustment function according to claim 2, characterized in that: The positioning frame (12) is in a U-shape.

4. The vehicle chassis transport device with adjustment function according to claim 2, characterized in that: An extrusion slope (14) is provided at one end of the top of the lifting block (13).

5. The vehicle chassis transport device with adjustment function according to claim 2, characterized in that: A height limiting assembly is installed at one end of the counterweight frame (10) and between the support plate (1) and the positioning frame (12), the height limiting assembly comprising a height baffle (16), a connecting plate (17), a second rotating shaft (18), a threaded section (19), a rotating column (20), a first bevel gear (21) and a second bevel gear (22), the interior of both sides of one end of the height baffle (16) are slidably connected to the connecting plate (17), the connecting plate (17) is slidably connected to the counterweight frame (10), and the interior of the height baffle (16) is rotatably connected to the second rotating shaft (18). 8), threaded sections (19) are provided on both sides of the exterior of the second rotating shaft (18), the exterior of the threaded sections (19) is threadedly connected to the connecting plate (17), the threads of the two threaded sections (19) are in opposite directions, the interior of the height baffle (16) away from the end of the counterweight frame (10) is rotatably connected to a rotating column (20), one end of the rotating column (20) is fixed with a first bevel gear (21), one end of the first bevel gear (21) is meshingly connected with a second bevel gear (22), and the interior of the second bevel gear (22) is fixed to the second rotating shaft (18).

6. The vehicle chassis transport device with adjustment function according to claim 2, characterized in that: One end of the first rotating shaft (3) located at the end of the support plate (1) away from the counterweight frame (10) is rotatably connected to a connecting rod (23), one end of the two connecting rods (23) is rotatably connected to a pulling rod (11), one end of the pulling rod (11) is provided with an armrest (25), and an adjustment mechanism for adjusting the distance between the armrest (25) and the pulling rod (11) is installed on the pulling rod (11).

7. The vehicle chassis transport device with adjustment function according to claim 6, characterized in that: The adjustment mechanism comprises a sliding column (24), a limit block (26), an extrusion block (27), a sliding block (28) and a return spring (29); the sliding column (24) is slidably connected inside the pull rod (11), and the sliding column (24) is fixed to the handrail (25); sliding blocks (28) are symmetrically slidably connected on both sides of the pull rod (11) and located on the outside of the sliding column (24); a return spring (29) is fixed between the sliding block (28) and the pull rod (11); extrusion blocks (27) are fixed at both ends of the sliding column (24) and located on the top of the sliding block (28); a limit block (26) is fixed at one end of the pull rod (11) close to the handrail (25), and the limit block (26) is slidably connected to the sliding column (24).

8. The vehicle chassis transport device with adjustment function according to claim 7, characterized in that: A first sliding groove (30) is provided inside the sliding column (24), and second sliding grooves (31) are evenly distributed inside the sliding column (24) and on one side of the first sliding groove (30). The first sliding groove (30) and the second sliding groove (31) are connected to each other, and the limiting block (26) and the first sliding groove (30) and the limiting block (26) and the second sliding groove (31) are both slidably connected.

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