Automobile lifting device convenient to adjust

Abstract

The invention discloses an automobile lifting device convenient to adjust, and relates to the technical field of lifting equipment. The device comprises a base, the base is connected with two lifting piles, the base is rotationally connected with a transmission shaft, the two lifting piles are slidably connected with lifting seats and rotationally connected with spline shafts, and the lower ends of the spline shafts are in transmission connection with the transmission shaft; the lifting base is rotationally connected with a spline housing and two oppositely-arranged supporting arms. The spline housing is matched with the spline shaft, and the outer wall is connected with a driving wheel; the two supporting arms are rotationally connected with the lifting seats through rotating shafts, the rotating shafts are connected with rotating wheels, the two rotating wheels are synchronously driven to rotate through the driving wheel, the rotating directions are opposite, and the transmission shaft synchronously drives the supporting arms connected with the two lifting seats to rotate. The spline shafts in the two lifting piles are in transmission connection with the transmission shafts, the spline shafts are used for synchronously driving the supporting arms to rotate, the rotating angles of the four supporting arms are consistent, and the problems that the positions of existing supporting arms on the two sides cannot be kept symmetrical, and stability and reliability during lifting are affected are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of lifting equipment, and particularly relates to an automobile lifting device that is convenient for adjustment. Background Art

[0002] An automobile lift is a device used to lift an automobile during the automobile repair process. It can lift the automobile to a certain height, facilitating the repair operation of the chassis. Thus, it can be seen that the automobile lift is one of the indispensable important devices in the automobile repair industry, and it effectively improves the repair efficiency and quality of the automobile.

[0003] For example, Chinese invention CN117509482B discloses an automobile lift. By making the distance between two lifting piles adjustable, it is convenient to park the automobile between the two lifting piles. After parking, the distance between the two lifting piles is adjusted to be smaller, facilitating the main body of the support arm to extend under the vehicle body. And through the transmission of the double-sided rack and the gear, the two main bodies of the support arms can be synchronously opened or synchronously closed, thereby realizing the synchronous adjustment of the angles of the two main bodies of the support arms.

[0004] However, in the prior art, the adjustment of the support arms on the two lifting piles is independent. Therefore, during the adjustment process, it is impossible to accurately control the angles of the support arms on the two lifting piles to be exactly the same, resulting in the inability to keep the positions of the support arms on both sides of the automobile symmetrical, making the force on the automobile unbalanced and affecting the stability and reliability during lifting. Summary of the Invention

[0005] The purpose of the present invention is to provide an automobile lifting device that is convenient for adjustment. The spline shaft in the two lifting piles is in transmission connection with the transmission shaft, and the spline shaft is used to synchronously drive the support arms to rotate, so as to make the rotation angles of the four support arms consistent, solving the problem that the support arms on both sides in the prior art cannot keep their positions symmetrical, affecting the stability and reliability during lifting.

[0006] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0007] The present invention is an automobile lifting device that is convenient for adjustment, including a base. The base is connected with two relatively arranged lifting piles. The base is rotatably connected with a transmission shaft, and one end of the transmission shaft is in transmission connection with a driving motor. Both of the lifting piles are slidably connected with lifting seats and rotatably connected with spline shafts, and the lower ends of the spline shafts are in transmission connection with the transmission shaft. The lifting seats are rotatably connected with spline sleeves and two relatively arranged support arms. The spline sleeves cooperate with the spline shafts, and the outer walls of the spline sleeves are fixedly connected with driving wheels. One ends of the two support arms are fixedly connected with rotating shafts and are rotatably connected with the lifting seats through the rotating shafts. The rotating shafts are fixedly connected with rotating wheels that are in transmission connection with the driving wheels, so as to synchronously drive the two rotating wheels to rotate through the driving wheels, and the rotation directions are opposite, realizing that the transmission shaft synchronously drives the support arms connected to the two lifting seats to rotate.

[0008] As a preferred technical solution of the present invention, the lifting pile is slidably connected to the base, the base is rotatably connected with a lead screw, and one end of the lead screw is drivingly connected with a servo motor; the lifting pile is fixedly connected with a nut cooperating with the lead screw for synchronously driving the two lifting piles to move towards and away from each other through the lead screw.

[0009] As a preferred technical solution of the present invention, a transmission wheel is fixedly connected to the lower end of the spline shaft, a driving wheel drivingly connected with the transmission wheel is rotatably connected to the lifting pile, and the driving wheel is connected to the transmission shaft through a sliding key to realize the axial movement of the driving wheel along the transmission shaft.

[0010] As a preferred technical solution of the present invention, the transmission wheel is a worm gear, and the driving wheel is a worm.

[0011] As a preferred technical solution of the present invention, both the driving wheel and the rotating wheel are spur gears, the two rotating wheels are meshed with each other, and one of the rotating wheels is meshed with the driving wheel.

[0012] As a preferred technical solution of the present invention, the lifting seat is rotatably connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a driven wheel meshed with the driving wheel, and the other end is fixedly connected with a transmission worm; the rotating wheel is a worm gear meshed with the transmission worm, and the two rotating wheels are respectively located on both sides of the transmission worm.

[0013] As a preferred technical solution of the present invention, a scale is arranged on the outer wall of the lifting pile for determining the lifting height of the lifting seat through the scale.

[0014] As a preferred technical solution of the present invention, the scale is located on the opposite side walls of the two lifting piles.

[0015] As a preferred technical solution of the present invention, the support arm is located on the upper surface of the lifting seat.

[0016] The present invention has the following beneficial effects:

[0017] In the present invention, the spline shafts in the two lifting piles are drivingly connected with the transmission shaft, so that the two spline shafts rotate synchronously, and the driving wheel of the spline shaft is drivingly connected with the rotating wheel, so that each spline shaft drives the two support arms drivingly connected with it to rotate respectively, realizing the synchronous rotation of the four support arms and the same rotation angle, ensuring the symmetry of the positions of the support arms on both sides of the vehicle after adjustment, making the force on the vehicle balanced, and effectively improving the stability and reliability during lifting.

[0018] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of a convenient adjustable vehicle lifting device of the present invention;

[0021] Figure 2 is Figure 1 front view of;

[0022] Figure 3 is Figure 2 top view of;

[0023] Figure 4 is Figure 3 cross-sectional view taken along line A-A in;

[0024] Figure 5 Structural schematic diagram of the lifting pile and the lifting seat;

[0025] Figure 6 Structural schematic diagram of the spline shaft and the lifting seat;

[0026] Figure 7 Structural schematic diagram of the lifting seat;

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] 1 - base, 2 - lifting pile, 3 - lifting seat, 4 - support arm, 101 - transmission shaft, 102 - drive motor, 103 - lead screw, 104 - servo motor, 201 - spline shaft, 202 - nut, 203 - transmission wheel, 204 - drive wheel, 205 - scale, 301 - spline sleeve, 302 - driving wheel, 303 - rotating shaft, 304 - driven wheel, 305 - transmission worm, 401 - rotating wheel. Detailed implementation manners

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0031] Please refer to Figures 1 to 3 As shown, the present invention is an adjustable vehicle lifting device, including a base 1. Two relatively arranged lifting piles 2 are connected to the base 1. The base 1 is rotatably connected to a transmission shaft 101 through a bearing bracket, and one end of the transmission shaft 101 is drivingly connected to a driving motor 102.

[0032] Among them, the lifting piles 2 are slidably connected to the base 1 through a guide rail slider assembly. A lead screw 103 is rotatably connected to the base 1, and one end of the lead screw 103 is drivingly connected to a servo motor 104. A nut 202 cooperating with the lead screw 103 is fixedly connected to the lifting pile 2, which is used to drive the lead screw 103 to rotate through the servo motor 104, and synchronously drive the two lifting piles 2 to move towards each other through the cooperation of the lead screw 103 and the nut 202. When the lead screw 103 rotates in the reverse direction, the two lifting piles 2 are driven to move away from each other.

[0033] A lifting seat 3 is slidably connected to both of the two lifting piles 2, and a spline shaft 201 is rotatably connected. The lower end of the spline shaft 201 is drivingly connected to the transmission shaft 101. The lifting pile 2 is connected with a lifting driving device, such as a hydraulic cylinder, etc., and the hydraulic cylinder is used to drive the lifting seat 3 to move up and down on the lifting pile 2.

[0034] Such as Figure 4 and 5 As shown, a transmission wheel 203 is fixedly connected to the lower end of the spline shaft 201. A driving wheel 204 drivingly connected to the transmission wheel 203 is rotatably connected to the lifting pile 2. For example, the transmission wheel 203 is a worm gear, and the driving wheel 204 is a worm.

[0035] The driving wheel 204 is sleeved on the transmission shaft 101, and the driving wheel 204 is connected to the transmission shaft 101 through a sliding key, so that when the lifting pile 2 moves, the driving wheel 204 can be driven to move axially along the transmission shaft 101, and when the transmission shaft 101 rotates, the driving wheel 204 can still be driven to rotate.

[0036] Such as Figure 6 and 7 As shown, a spline sleeve 301 and two relatively arranged support arms 4 are rotatably connected to the lifting seat 3. The support arms 4 are located on the upper surface of the lifting seat 3, so that the lifting seat 3 provides a certain supporting effect for the support arms 4, which is beneficial to improving the overall structural stability.

[0037] The spline sleeve 301 is engaged with the spline shaft 201, and a driving wheel 302 is fixedly connected to the outer wall of the spline sleeve 301. By using the cooperation between the spline sleeve 301 and the spline shaft 201, the lifting seat 3 can realize lifting movement and ensure that the spline shaft 201 can drive the spline sleeve 301 to rotate.

[0038] One end of each of the two support arms 4 is fixedly connected with a rotating shaft, and is rotationally connected to the lifting seat 3 through the rotating shaft. The rotating shaft is fixedly connected with a rotating wheel 401 that is drivingly connected to the driving wheel 302, and is used to synchronously drive the two rotating wheels 401 to rotate through the driving wheel 302, and the rotation directions are opposite, so as to realize that the transmission shaft 101 synchronously drives the support arms 4 connected to the two lifting seats 3 to rotate.

[0039] For example, both the driving wheel 302 and the rotating wheel 401 are spur gears. The two rotating wheels 401 are meshed with each other, and one of the rotating wheels 401 is meshed with the driving wheel 302. The transmission shaft 101 drives the driving wheel 204 to rotate. The driving wheel 204 drives the spline shaft 201 to rotate through the transmission wheel 203, and then drives the rotating wheel 401 to rotate through the driving wheel 302. Since the two rotating wheels 401 are meshed with each other, the rotation directions of the two rotating wheels 401 are opposite, so as to realize the adjustment of the distance between the two support arms 4.

[0040] The two spline shafts 201 connected to the two lifting piles 2 are synchronously driven by one transmission shaft 101, so that the two support arms 4 rotationally connected to each lifting seat 3 swing synchronously, that is, the four support arms 4 swing synchronously, and the swing angles are the same, so that the positions of the support arms 4 on both sides of the vehicle after adjustment are symmetrical, ensuring the balanced force of the vehicle, and effectively improving the stability and reliability during lifting.

[0041] As another embodiment, as Figure 6 and 7 shown, the lifting seat 3 is rotationally connected with a rotating shaft 303 through a bearing bracket. One end of the rotating shaft 303 is fixedly connected with a driven wheel 304 that is meshed with the driving wheel 302, and the other end is fixedly connected with a transmission worm 305.

[0042] Among them, the driving wheel 302 and the driven wheel 304 are bevel gear structures that are meshed with each other. The rotating wheel 401 is a worm gear that is meshed with the transmission worm 305, and the two rotating wheels 401 are respectively located on both sides of the transmission worm 305.

[0043] The driving wheel 302 and the driven wheel 304 are engaged to drive the rotation of the rotating shaft 303. The driving worm 305 is used to drive the rotation of the rotating wheels 401 meshed with both sides, and the rotation directions of the two rotating wheels 401 are opposite. By adopting the worm and worm gear structure for transmission and utilizing the self-locking property of the worm and worm gear, after the support arm 4 completes the position adjustment, the support arm 4 can still maintain its fixed position when subjected to an external force collision, avoiding the accidental rotation of the rotating wheel 401 and the change of the position of the support arm 4, which is beneficial to improving the overall adaptability, reliability and stability.

[0044] As a preferred embodiment, as Figure 4 and 5 shown, a scale 205 is provided on the outer wall of the lifting pile 2, which is used to determine the lifting height of the lifting seat 3 through the scale 205, facilitating the observation of whether the heights of the lifting seats 3 connected to the two lifting piles 2 are consistent, so as to be able to detect abnormalities in time and make adjustments.

[0045] Moreover, the scale 205 is located on the opposite side walls of the two lifting piles 2, enabling the user to observe the heights of the lifting seats 3 on the two lifting piles 2 between the two lifting piles 2, which is beneficial to improving the convenience of use.

[0046] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0047] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An easily adjustable automobile lifting device, comprising a base (1), the base (1) being connected to two lifting piles (2) arranged opposite to each other, characterized in that: The base (1) is rotatably connected to a transmission shaft (101), and one end of the transmission shaft (101) is transmission-connected to a driving motor (102); the two lifting piles (2) are both slidably connected to a lifting seat (3), and are rotatably connected to a spline shaft (201), and the lower end of the spline shaft (201) is transmission-connected to the transmission shaft (101); The lifting seat (3) is rotatably connected to a spline sleeve (301) and two supporting arms (4) arranged opposite to each other; the spline sleeve (301) cooperates with the spline shaft (201), and the outer wall is fixedly connected to a driving wheel (302); one end of the two supporting arms (4) is fixedly connected to a rotating shaft, and is rotatably connected to the lifting seat (3) through the rotating shaft, and the rotating shaft is fixedly connected to a rotating wheel (401) that is transmission-connected to the driving wheel (302), and is used to synchronously drive the two rotating wheels (401) to rotate through the driving wheel (302), and the rotation directions are opposite, so that the transmission shaft (101) synchronously drives the supporting arms (4) connected to the two lifting seats (3) to rotate.

2. The easily adjustable vehicle lifting device according to claim 1, characterized in that: The lifting pile (2) is slidably connected to the base (1), the base (1) is rotatably connected to a screw rod (103), and one end of the screw rod (103) is transmission-connected to a servo motor (104); The lifting piles (2) are fixedly connected to a nut (202) that cooperates with the screw rod (103) and is used to synchronously drive the two lifting piles (2) to move toward and away from each other through the screw rod (103).

3. The easily adjustable vehicle lifting device according to claim 2, characterized in that: The lower end of the spline shaft (201) is fixedly connected to a transmission wheel (203), and the lifting pile (2) is rotatably connected to a driving wheel (204) that is transmission-connected to the transmission wheel (203), and the driving wheel (204) is connected to the transmission shaft (101) via a sliding key, so that the driving wheel (204) can move axially along the transmission shaft (101).

4. The easily adjustable vehicle lifting device according to claim 3, characterized in that: The transmission wheel (203) is a worm wheel, and the driving wheel (204) is a worm.

5. The easily adjustable vehicle lifting device according to claim 1 or 4, characterized in that: The driving wheel (302) and the rotating wheel (401) are both spur gears, the two rotating wheels (401) are meshed with each other, and one of the rotating wheels (401) is meshed with the driving wheel (302).

6. The easily adjustable vehicle lifting device according to claim 1 or 4, characterized in that: The lifting seat (3) is rotatably connected to a rotating shaft (303), one end of the rotating shaft (303) is fixedly connected to a driven wheel (304) meshing with the driving wheel (302), and the other end is fixedly connected to a transmission worm (305); The rotating wheel (401) is a worm wheel meshing with the transmission worm (305), and the two rotating wheels (401) are respectively located on both sides of the transmission worm (305).

7. The easily adjustable vehicle lifting device according to claim 1, characterized in that: The outer wall of the lifting pile (2) is provided with a scale (205) for determining the lifting height of the lifting seat (3) through the scale (205).

8. The easily adjustable vehicle lifting device according to claim 7, characterized in that: The scale (205) is located on one side wall opposite to the two lifting piles (2).

9. The easily adjustable vehicle lifting device according to claim 1, characterized in that: The supporting arm (4) is located on the upper surface of the lifting seat (3).

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