Lifting machine for automobile maintenance

Abstract

The utility model belongs to the technical field of automobile maintenance, and discloses an automobile maintenance lifting machine. The device comprises a base, a containing groove is formed in the top of the base, a mounting frame is arranged in the containing groove, a fixing plate is fixed to the position, close to the edge of one side of the mounting frame, of the top of the mounting frame, and a sliding plate is arranged at the position, close to the edge of the other side of the mounting frame, of the top of the mounting frame; a lifting assembly used for lifting the mounting frame is further arranged in the containing groove, and an adjusting assembly used for driving the sliding plate to move towards the side close to or away from the fixing plate is arranged on the mounting frame. A maintainer enables the distance between a fixing plate and a sliding plate to be equal to the distance between tires on the two sides of an automobile through an adjusting assembly, the maintainer needs to drive the automobile to a mounting frame, then a worker starts a lifting assembly, and the lifting assembly drives the mounting frame and the automobile to be maintained to ascend in the vertical direction; and maintenance personnel can conveniently maintain the bottom of the automobile.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile maintenance, in particular to an automobile maintenance hoist. Background Art

[0002] A hoist is a relatively common auxiliary equipment in the process of automobile maintenance. It can lift the vehicle under repair to a certain height above the ground, so as to facilitate the repair personnel to enter the bottom of the vehicle for operation, or to carry out work such as tire disassembly and four-wheel alignment. And the use of the hoist saves manpower and improves work efficiency.

[0003] A Chinese utility model patent with the publication number of CN220502547U discloses an automobile maintenance hoist, which includes a bottom plate; a lifting mechanism is arranged on the top side of the bottom plate, a supporting mechanism is installed on the lifting mechanism, a fixing mechanism is arranged inside the bottom plate, the fixing mechanism includes a lifting platform, mounting seats are fixed on both sides of the lifting platform, clamping plates are rotatably installed on the mounting seats through pin shafts, a sponge pad is fixed on one side of the clamping plate, a connecting ear is fixed at one end of the clamping plate, a supporting rod is fixed inside the lifting platform, a fixing plate is fixed at the bottom side of the supporting rod, and hydraulic cylinders are fixed on both sides of the fixing plate.

[0004] In view of the above related technologies, the inventor believes that there are the following defects: since the size of the mounting seat of the automobile maintenance hoist is fixed, and the clamping plate is rotatably installed on the side of the mounting seat, the clamping plate can only be limited to limit the vehicle with the same width as the mounting seat, and it is not convenient to limit vehicles with different widths. Therefore, improvement is needed. Content of the Utility Model

[0005] In order to solve the above problems, the utility model provides an automobile maintenance hoist.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: an automobile maintenance hoist, which includes a base, an upper sliding slope is fixed on one side of the base, a lower sliding slope is fixed on the side of the base far from the upper sliding slope, a receiving groove is opened at the top of the base, an installation frame is arranged in the receiving groove, a fixing plate is fixed at a position on the top of the installation frame close to one side edge of the installation frame, a sliding plate is arranged at a position on the top of the installation frame close to the other side edge of the installation frame, a lifting assembly for lifting the installation frame is further arranged in the receiving groove, and an adjusting assembly for driving the sliding plate to move towards one side close to or away from the fixing plate is arranged on the installation frame.

[0007] By adopting the above technical solution, when the bottom of the vehicle needs to be repaired, the maintenance personnel only need to drive the sliding plate to move towards or away from the fixed plate through the adjustment component, so that the distance between the fixed plate and the sliding plate is equal to the distance between the tires on both sides of the vehicle. Subsequently, the maintenance personnel need to drive the vehicle onto the mounting rack through the uphill slope, and the tires on both sides of the vehicle travel onto the fixed plate and the sliding plate, so that the vehicle repair lift can limit the vehicles with different widths to be repaired. Then, the staff starts the lifting component, and the lifting component drives the mounting rack and the vehicle to be repaired and maintained to rise in the vertical direction. When reaching a certain height, the lifting component is turned off so that the maintenance personnel can repair the bottom of the vehicle.

[0008] Further, the lifting component includes a bottom plate fixed on the inner bottom wall of the receiving groove, a first V-shaped connecting rod hinged to the bottom plate, a second V-shaped connecting rod slidably connected to the bottom plate, and a rectangular frame jointly arranged on the first V-shaped connecting rod and the second V-shaped connecting rod. There are two groups of the first V-shaped connecting rod and the second V-shaped connecting rod, which are symmetrically arranged with respect to the base. The lifting component further includes a connecting rod fixed between the two first V-shaped connecting rods and a cylinder hinged to the top of the bottom plate. The end of the piston rod of the cylinder is hinged to the connecting rod. The first V-shaped connecting rod is formed by two rod bodies hinged to each other, and the second V-shaped connecting rod is also formed by two rod bodies hinged to each other. The end of the first V-shaped connecting rod away from the bottom plate is hinged to the bottom of the rectangular frame, and the end of the second V-shaped connecting rod away from the bottom plate is slidably connected to the bottom of the rectangular frame, and the two rod bodies forming the first V-shaped connecting rod are respectively hinged to the two rod bodies forming the second V-shaped connecting rod.

[0009] By adopting the above technical solution, after the maintenance personnel start the cylinder, the piston rod of the cylinder pushes the connecting rod to move, thereby driving the first V-shaped connecting rod and the second V-shaped connecting rod to gradually unfold from the originally folded state. Since the two ends of the first V-shaped connecting rod are respectively hinged to the bottom plate and the rectangular frame, and the two ends of the second V-shaped connecting rod are respectively in sliding fit with the bottom plate and the rectangular frame, under the drive of the cylinder, the included angle between the two rod bodies forming the first V-shaped connecting rod and the included angle between the two rod bodies forming the second V-shaped connecting rod both gradually increase, so that the mounting rack and the vehicle to be repaired rise together. Relatively, when the repair operation is completed, the maintenance personnel start the cylinder again, driving the piston rod to move towards the cylinder. The included angle between the two rod bodies forming the first V-shaped connecting rod and the included angle between the two rod bodies forming the second V-shaped connecting rod both gradually decrease until they are received inside the receiving groove, and the top of the mounting rack is flush with the top of the base, so that the maintenance personnel can drive the repaired vehicle out through the downhill slope.

[0010] Further, the adjusting assembly includes a motor fixed to one side of the mounting frame, a driving gear fixed to the output shaft of the motor, a threaded rod penetrating through the mounting frame and rotatably connected to the mounting frame, a driven gear fixed to one end of the threaded rod and meshing with the driving gear, a fixing block fixed to the bottom of the fixing plate and fixed to the mounting frame, a slider fixed to the bottom of the sliding plate, and a guide rod fixed to the mounting frame and arranged in parallel with the threaded rod. The threaded rod penetrates through the fixing block and is in clearance fit with the fixing block, the threaded rod penetrates through the slider and is threadedly connected to the slider, the guide rod penetrates through the fixing block and is in clearance fit with the fixing block, and the guide rod penetrates through the slider and is in sliding fit with the slider.

[0011] By adopting the above technical solution, the maintenance personnel start the motor. After the motor works, it drives the driving gear to rotate. The driving gear drives the driven gear meshing with it to rotate. The driven gear drives the threaded rod to rotate. Since one end of the slider is threadedly connected to the threaded rod and the other end is in sliding fit with the guide rod, the circumferential rotation of the slider around the threaded rod is restricted, so that the sliding plate fixed to the top of the slider can move horizontally during this process. By adjusting the distance between the sliding plate and the fixing plate, it is applicable to the distance between the tires on both sides of cars with different widths.

[0012] Further, a plurality of anti-slip ridges are provided on both the top of the fixing plate and the top of the sliding plate.

[0013] By adopting the above technical solution, the setting of the anti-slip ridges is beneficial to increasing the friction between the car tires and the top of the fixing plate and the top of the sliding plate, and enhancing the stability of the car to be repaired on the mounting frame.

[0014] Further, L-shaped limiting plates are fixed on the side walls of the fixing plate and the sliding plate away from each other.

[0015] By adopting the above technical solution, the car chassis is clamped and fixed by the L-shaped limiting plates, so that the position of the car will not shift during the lifting process, facilitating the maintenance personnel to perform maintenance operations safely.

[0016] Further, silica gel pads are provided on the side walls of the two L-shaped limiting plates close to each other.

[0017] By adopting the above technical solution, the silica gel pads are beneficial to reducing the probability of the L-shaped limiting plates causing abrasion and scratches to the car surface.

[0018] Further, scale lines are provided at the position of the mounting frame close to the top of the upper slope.

[0019] By adopting the above technical solution, the setting of the scale lines is beneficial for the maintenance personnel to more accurately adjust the distance between the fixing plate and the sliding plate to be applicable to the distance between the tires on both sides of cars with different widths.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. In the present application, when vehicle bottom maintenance is required, maintenance personnel can drive the sliding plate to move towards or away from the fixed plate through the adjustment component, so that the distance between the fixed plate and the sliding plate is equal to the distance between the two tires on both sides of the vehicle. Subsequently, the maintenance personnel need to drive the vehicle onto the mounting frame through the uphill slope, and the tires on both sides of the vehicle travel onto the fixed plate and the sliding plate, so that the vehicle maintenance lift can limit different widths of vehicles to be repaired. Subsequently, the staff starts the lifting component, and the lifting component drives the mounting frame and the vehicle to be repaired and maintained to rise vertically. When reaching a certain height, the lifting component is turned off to facilitate maintenance personnel to repair the vehicle bottom;

[0022] 2. In the present application, after the maintenance personnel start the cylinder, the piston rod of the cylinder pushes the connecting rod to move, thereby driving the first V-shaped link and the second V-shaped link to gradually unfold from the originally folded state. Since the two ends of the first V-shaped link are respectively hinged to the bottom plate and the rectangular frame, and the two ends of the second V-shaped link are respectively slidably matched with the bottom plate and the rectangular frame, under the drive of the cylinder, the included angle between the two rod bodies forming the first V-shaped link and the included angle between the two rod bodies forming the second V-shaped link both gradually increase, causing the mounting frame and the vehicle to be repaired to rise together; On the contrary, when the maintenance operation is completed, the maintenance personnel start the cylinder again, driving the piston rod to move towards the cylinder, and the included angle between the two rod bodies forming the first V-shaped link and the included angle between the two rod bodies forming the second V-shaped link both gradually decrease until they are received inside the accommodating groove, and the top of the mounting frame is flush with the top of the base, so that the maintenance personnel can drive the repaired vehicle out from the downhill slope;

[0023] 3. In the present application, the maintenance personnel start the motor. After the motor works, it drives the driving gear to rotate. The driving gear drives the driven gear meshing with it to rotate, and the driven gear drives the threaded rod to rotate. Since one end of the slider is threadedly connected to the threaded rod and the other end is slidably matched with the guide rod, the circumferential rotation of the slider around the threaded rod is restricted, so that the sliding plate fixed to the top of the slider can move horizontally during this process. By adjusting the distance between the sliding plate and the fixed plate, it is suitable for the distance between the two tires on both sides of vehicles of different widths. Description of the Drawings

[0024] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0025] Figure 2 is the planar structural schematic diagram highlighting the lifting component in the embodiment of the present utility model;

[0026] Figure 3 is the structural schematic diagram highlighting the adjustment component in the embodiment of the present utility model.

[0027] In the figure: 1. Base; 11. Upper landslide; 12. Lower landslide; 13. Accommodating groove; 2. Mounting frame; 21. Fixed plate; 22. Slide plate; 23. Scale line; 3. Adjusting assembly; 31. Motor; 32. Driving gear; 33. Threaded rod; 34. Driven gear; 35. Fixed block; 36. Slide block; 37. Guide rod; 4. Lifting assembly; 41. Base plate; 42. First V-shaped connecting rod; 43. Second V-shaped connecting rod; 44. Rectangular frame; 45. Connecting rod; 46. Cylinder; 5. Anti-slip protrusions; 6. L-shaped limiting plate; 61. Silicone pad. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] As Figures 1-3 shown, an embodiment of the present application discloses an automotive repair hoist, which includes a base 1, a mounting frame 2, an adjusting assembly 3, and a lifting assembly 4.

[0031] The base 1 is horizontally arranged. An upper landslide 11 is fixed on one side of the base 1, a lower landslide 12 is fixed on the side of the base 1 away from the upper landslide 11, and an accommodating groove 13 is opened at the top of the base 1.

[0032] The mounting frame 2 is arranged in the accommodating groove 13. A fixed plate 21 is fixed at a position on the top of the mounting frame 2 close to one side edge of the mounting frame 2, and a slide plate 22 is arranged at a position on the top of the mounting frame 2 close to the other side edge of the mounting frame 2.

[0033] The adjusting assembly 3 is arranged on the mounting bracket 2 and is used to drive the sliding plate 22 to move towards or away from the side of the fixed plate 21. The adjusting assembly 3 includes a motor 31, a driving gear 32, a threaded rod 33, a driven gear 34, a fixed block 35, a slider 36 and a guide rod 37. The motor 31 is fixed on one side of the mounting bracket 2, and the driving gear 32 is fixed to the output shaft of the motor 31. The threaded rod 33 is disposed through the mounting bracket 2 and is rotatably connected to the mounting bracket 2. The driven gear 34 is fixed to one end of the threaded rod 33 and meshes with the driving gear 32. The fixed block 35 is fixed to the bottom of the fixed plate 21 and is fixed to the mounting bracket 2. The slider 36 is fixed to the bottom of the sliding plate 22, and the guide rod 37 is fixed to the mounting bracket 2 and is arranged in parallel with the threaded rod 33. The threaded rod 33 passes through the fixed block 35 and is in clearance fit with the fixed block 35. The threaded rod 33 passes through the slider 36 and is threadedly connected to the slider 36. The guide rod 37 passes through the fixed block 35 and is in clearance fit with the fixed block 35. The guide rod 37 passes through the slider 36 and is in sliding fit with the slider 36. In this embodiment, the maintenance personnel start the motor 31. After the motor 31 works, it drives the driving gear 32 to rotate. The driving gear 32 drives the driven gear 34 meshing with it to rotate. The driven gear 34 drives the threaded rod 33 to rotate. Since one end of the slider 36 is threadedly connected to the threaded rod 33 and the other end is in sliding fit with the guide rod 37, the circumferential rotation of the slider 36 around the threaded rod 33 is restricted, so that the sliding plate 22 fixed to the top of the slider 36 can move horizontally during this process. By adjusting the distance between the sliding plate 22 and the fixed plate 21, it is suitable for the distance between the tires on both sides of cars with different widths.

[0034] The lifting assembly 4 is arranged in the receiving groove 13 and is used to lift the mounting frame 2. The lifting assembly 4 includes a bottom plate 41, a first V-shaped connecting rod 42, a second V-shaped connecting rod 43, a rectangular frame 44, a connecting rod 45 and a cylinder 46. The bottom plate 41 is fixed on the inner bottom wall of the receiving groove 13. The first V-shaped connecting rod 42 is hinged to the bottom plate 41, and the first V-shaped connecting rod 42 is formed by two rod bodies hinged to each other. The second V-shaped connecting rod 43 is slidably connected to the bottom plate 41, and the second V-shaped connecting rod 43 is also formed by two rod bodies hinged to each other. The two rod bodies forming the first V-shaped connecting rod 42 are respectively hinged to the two rod bodies forming the second V-shaped connecting rod 43. There are two sets of the first V-shaped connecting rod 42 and the second V-shaped connecting rod 43, which are symmetrically arranged with respect to the base 1. The rectangular frame 44 is jointly arranged on the first V-shaped connecting rod 42 and the second V-shaped connecting rod 43. The connecting rod 45 is fixed between the two first V-shaped connecting rods 42. The cylinder 46 is hinged to the top of the bottom plate 41, and the end of the piston rod of the cylinder 46 is hinged to the connecting rod 45. The end of the first V-shaped connecting rod 42 far from the bottom plate 41 is hinged to the bottom of the rectangular frame 44, and the end of the second V-shaped connecting rod 43 far from the bottom plate 41 is slidably connected to the bottom of the rectangular frame 44. In this embodiment, after the maintenance personnel start the cylinder 46, the piston rod of the cylinder 46 pushes the connecting rod 45 to move, thereby driving the first V-shaped connecting rod 42 and the second V-shaped connecting rod 43 to gradually unfold from the originally folded state. Since the two ends of the first V-shaped connecting rod 42 are respectively hinged to the bottom plate 41 and the rectangular frame 44, and the two ends of the second V-shaped connecting rod 43 are respectively in sliding fit with the bottom plate 41 and the rectangular frame 44, under the drive of the cylinder 46, the included angle between the two rod bodies forming the first V-shaped connecting rod 42 and the included angle between the two rod bodies forming the second V-shaped connecting rod 43 both gradually increase, so that the mounting frame 2 and the vehicle to be repaired rise together; on the contrary, when the repair operation is completed, the maintenance personnel start the cylinder 46 again, driving the piston rod to move towards the cylinder 46. The included angle between the two rod bodies forming the first V-shaped connecting rod 42 and the included angle between the two rod bodies forming the second V-shaped connecting rod 43 both gradually decrease until they are received inside the receiving groove 13, and the top of the mounting frame 2 is flush with the top of the base 1, so that the maintenance personnel can drive the repaired vehicle out of the lower slope 12.

[0035] In order to enhance the stability of the vehicle to be repaired on the mounting frame 2, a plurality of anti-slip ridges 5 are provided on the top of the fixing plate 21 and the top of the sliding plate 22. The setting of the anti-slip ridges 5 is beneficial to increasing the friction between the vehicle tires and the top of the fixing plate 21 and the top of the sliding plate 22, thereby further improving the stability of the vehicle to be repaired on the mounting frame 2.

[0036] In order to ensure that the position of the vehicle will not shift during the lifting process, L-shaped limiting plates 6 are fixed on the side walls of the fixing plate 21 and the sliding plate 22 that are away from each other. The vehicle chassis is clamped and fixed by the L-shaped limiting plates 6, so that the vehicle is in a relatively stable state during the lifting process, facilitating the maintenance personnel to perform maintenance operations safely.

[0037] To reduce the probability of the L-shaped limit plate 6 causing wear and scratches on the car surface, silicone pads 61 are provided on the side walls of the two L-shaped limit plates 6 that are close to each other. The silicone pads 61 have a certain flexibility and deformation ability, and can protect the surface of the car to be repaired.

[0038] To facilitate the maintenance personnel to more accurately adjust the distance between the fixed plate 21 and the sliding plate 22, a scale line 23 is provided at a position of the mounting bracket 2 close to the top of the upper slope 11. The setting of the scale line 23 is conducive to the maintenance personnel to more accurately adjust the distance between the fixed plate 21 and the sliding plate 22 to be suitable for the distance between the tires on both sides of cars of different widths.

[0039] The working principle of a car repair hoist in this embodiment is as follows: When it is necessary to repair the bottom of the car, the maintenance personnel start the motor 31. After the motor 31 works, it drives the driving gear 32 to rotate. The driving gear 32 drives the driven gear 34 meshing with it to rotate. The driven gear 34 drives the threaded rod 33 to rotate. Since one end of the slider 36 is threadedly connected to the threaded rod 33 and the other end is slidably matched with the guide rod 37, the circumferential rotation of the slider 36 around the threaded rod 33 is restricted, so that the sliding plate 22 fixed to the top of the slider 36 can move horizontally during this process, making the distance between the fixed plate 21 and the sliding plate 22 equal to the distance between the tires on both sides of the car. Subsequently, the maintenance personnel need to drive the car onto the mounting bracket 2 through the upper slope 11, and the tires on both sides of the car travel onto the fixed plate 21 and the sliding plate 22, so that the car repair hoist can limit the cars to be repaired with different widths. Then the staff starts the cylinder 46, and the piston rod of the cylinder 46 pushes the connecting rod 45 to move, thereby driving the first V-shaped link 42 and the second V-shaped link 43 to gradually unfold from the originally folded state. Since the two ends of the first V-shaped link 42 are respectively hinged to the bottom plate 41 and the rectangular frame 44, and the two ends of the second V-shaped link 43 are respectively slidably matched with the bottom plate 41 and the rectangular frame 44, under the drive of the cylinder 46, the included angle between the two rod bodies forming the first V-shaped link 42 and the included angle between the two rod bodies forming the second V-shaped link 43 both gradually increase, causing the mounting bracket 2 and the car to be repaired to rise together; conversely, when the repair operation is completed, the maintenance personnel start the cylinder 46 again, driving the piston rod to move towards the cylinder 46, and the included angle between the two rod bodies forming the first V-shaped link 42 and the included angle between the two rod bodies forming the second V-shaped link 43 both gradually decrease until they are received inside the receiving groove 13, and the top of the mounting bracket 2 is flush with the top of the base 1, so that the maintenance personnel can drive the repaired car out from the lower slope 12.

[0040] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements should also be regarded as within the protection scope of the present utility model.

Claims

1. A car maintenance lift, comprising a base (1), an upper slide (11) being fixed to one side of the base (1), a lower slide (12) being fixed to the side of the base (1) away from the upper slide (11), a receiving groove (13) being provided at the top of the base (1), and characterized in that: A mounting frame (2) is arranged in the receiving groove (13); a fixing plate (21) is fixed at a position of the top of the mounting frame (2) close to the edge of one side of the mounting frame (2); a sliding plate (22) is arranged at a position of the top of the mounting frame (2) close to the edge of the other side of the mounting frame (2); a lifting component (4) for lifting the mounting frame (2) is also arranged in the receiving groove (13); and an adjusting component (3) for driving the sliding plate (22) to move toward or away from the fixing plate (21) is arranged on the mounting frame (2).

2. The vehicle maintenance lift according to claim 1, characterized in that: The lifting assembly (4) comprises a bottom plate (41) fixed on the inner bottom wall of the accommodating groove (13), a first V-shaped connecting rod (42) hinged on the bottom plate (41), a second V-shaped connecting rod (43) slidably connected to the bottom plate (41), and a rectangular frame (44) arranged on the first V-shaped connecting rod (42) and the second V-shaped connecting rod (43), wherein the first V-shaped connecting rod (42) and the second V-shaped connecting rod (43) are provided in two groups and are symmetrically arranged with respect to the base (1), and the lifting assembly (4) further comprises a connecting rod (45) fixed between the two first V-shaped connecting rods (42) and a connecting rod (45) hinged on the bottom plate (41). ) at the top of the cylinder (46), the piston rod end of the cylinder (46) is hinged to the connecting rod (45), the first V-shaped connecting rod (42) is composed of two rod bodies hinged to each other, and the second V-shaped connecting rod (43) is also composed of two rod bodies hinged to each other, the end of the first V-shaped connecting rod (42) away from the bottom plate (41) is hinged to the bottom of the rectangular frame (44), the end of the second V-shaped connecting rod (43) away from the bottom plate (41) is slidably connected to the bottom of the rectangular frame (44), and the two sections of the rod body constituting the first V-shaped connecting rod (42) are respectively hinged to the two sections of the rod body constituting the second V-shaped connecting rod (43).

3. The vehicle maintenance lift according to claim 2, characterized in that: The adjustment assembly (3) comprises a motor (31) fixed to one side of the mounting frame (2), a driving gear (32) fixed to the output shaft of the motor (31), a threaded rod (33) penetrating the mounting frame (2) and rotatably connected to the mounting frame (2), a driven gear (34) fixed to one end of the threaded rod (33) and meshing with the driving gear (32), a fixing block (35) fixed to the bottom of the fixing plate (21) and fixed to the mounting frame (2), a sliding block (36) fixed to the bottom of the sliding block (22), and a guide rod (37) fixed to the mounting frame (2) and arranged parallel to the threaded rod (33), wherein the threaded rod (33) penetrates the fixing block (35) and is clearance-matched with the fixing block (35), the threaded rod (33) penetrates the sliding block (36) and is threadedly connected to the sliding block (36), the guide rod (37) penetrates the fixing block (35) and is clearance-matched with the fixing block (35), and the guide rod (37) penetrates the sliding block (36) and is slidably matched with the sliding block (36).

4. The vehicle maintenance lift according to claim 3, characterized in that: A plurality of anti-slip convex strips (5) are provided on the top of the fixed plate (21) and the top of the sliding plate (22).

5. The vehicle maintenance lift according to claim 4, characterized in that: L-shaped limiting plates (6) are fixed on the side walls of the fixed plate (21) and the sliding plate (22) that are away from each other.

6. The vehicle maintenance lift according to claim 5, characterized in that: Silicone pads (61) are provided on the side walls of the two L-shaped limiting plates (6) that are close to each other.

7. The vehicle maintenance lift according to claim 6, characterized in that: A scale line (23) is provided on the mounting frame (2) at a position close to the top of the upper slide (11).

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