Articulated arm for vehicle lifting machine and double-column lifting machine

Abstract

The utility model aims to disclose an articulated arm for a vehicle lifting machine and a double-column lifting machine, and relates to the technical field of vehicle maintenance, the articulated arm comprises a telescopic arm and a lifting assembly arranged at the end part of the telescopic arm, a rotating shaft is arranged between the lifting assembly and the telescopic arm, and the end part of the telescopic arm is provided with a through hole matched with the rotating shaft; the lifting assembly comprises a horizontal supporting plate and a lifting disc arranged above the horizontal supporting plate. A first supporting plate is mounted at the bottom of the horizontal supporting plate, a second supporting plate is mounted at the top of the horizontal supporting plate, and a rotating shaft sequentially penetrates through the second supporting plate, the through hole and the first supporting plate; the distance L between the center line of the through hole and the center line of the lifting disc is 150 mm-260 mm. The technical effects are that the center line of the through hole is the rotation center of the lifting disc, the rotation center is adjacent to the lifting disc, the position of the lifting disc can be adjusted more accurately, and when the lifting disc lifts a vehicle, deformation force borne by the rotating shaft and the end portion of the telescopic arm is small, and abrasion is small.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle maintenance, and particularly relates to a joint arm for a vehicle lift and a two-post lift. Background Art

[0002] Currently, for vehicle lifting, in order to facilitate the adjustment of the lifting point, joint arms have been developed, such as CN116730249A and CN116374879B. The current defect of the joint arm is that the center distance between the rotation center of the joint arm and the center of the lifting disc is relatively long. Under the action of the lever principle, when lifting a vehicle, the force on the rotation center of the joint arm is relatively large, which easily causes deformation of the rotation center and is easily damaged, thus affecting the reliability of lifting.

[0003] In view of this, it is necessary to develop a joint arm for a vehicle lift and a two-post lift to solve the above problems. Summary of the Invention

[0004] To solve the above technical problems, the purpose of the utility model is to disclose a joint arm for a vehicle lift and a two-post lift.

[0005] The first invention purpose of the utility model is to provide a joint arm for a vehicle lift.

[0006] The second invention purpose of the utility model is to provide a two-post lift.

[0007] To achieve the above first invention purpose, the utility model provides a joint arm for a vehicle lift, including a telescopic arm and a lifting component arranged at the end of the telescopic arm. A rotating shaft is arranged between the lifting component and the telescopic arm, and a through hole cooperating with the rotating shaft is arranged at the end of the telescopic arm;

[0008] The lifting component includes a horizontal support plate and a lifting disc arranged above the horizontal support plate;

[0009] A first support plate is installed at the bottom of the horizontal support plate, a second support plate is installed at the top of the horizontal support plate, and the rotating shaft sequentially passes through the second support plate, the through hole and the first support plate;

[0010] The distance L between the center line of the through hole and the center line of the lifting disc is 150 mm - 260 mm.

[0011] Preferably, the total length M of the telescopic arm and the lifting component is 500 mm - 2000 mm.

[0012] Preferably, a plurality of circular grooves are arranged on the upper surface of the first support plate, and the plurality of circular grooves are arranged in a semi-circular arc.

[0013] Preferably, a washer is disposed between the second support plate and the through hole.

[0014] Preferably, a rectangular block is provided on the washer, and the rectangular block is disposed at the middle of the end of the telescopic arm.

[0015] Preferably, a small hole is provided at the end of the telescopic arm, a pin is disposed in the small hole, a guide sleeve is provided above the small hole, a nut is installed on the guide sleeve, and the nut is engaged with the rectangular block.

[0016] Preferably, the nut is a hexagonal nut, and any vertex angle of the nut abuts against the side surface of the rectangular block.

[0017] Preferably, the pin is engaged with the circular groove.

[0018] Preferably, the telescopic arm includes at least a first-stage telescopic structure.

[0019] Based on the same inventive principle, to achieve the above second object of the invention, the present utility model provides a two-column lift, and each column of the two-column lift is provided with the articulated arm for a vehicle lift described in the first invention.

[0020] Compared with the prior art, the technical effects of the present utility model are as follows:

[0021] The center line of the through hole of the present utility model is the rotation center of the lifting tray, and the distance L between the center line of the through hole and the center line of the lifting tray is 150 mm - 260 mm. The rotation center is adjacent to the lifting tray. On the one hand, the position of the lifting tray can be adjusted more accurately, which is convenient for fine-tuning the lifting point. On the other hand, when the lifting tray lifts the vehicle, the pressure on the rotation center is small, the deformation force on the rotating shaft and the end of the telescopic arm is small, the wear of the rotating shaft and the end of the telescopic arm is small, and the maintenance or replacement cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a three-dimensional structural view of the articulated arm for a vehicle lift of the present utility model.

[0024] Figure 2 is an exploded structural view of the articulated arm for a vehicle lift of the present utility model.

[0025] Figure 3This is the exploded structure of the articulated arm of the vehicle lift of the present utility model.

[0026] Figure 4 This is the present utility model Figure 1 Schematic enlarged view of part A.

[0027] Figure 5 This is the schematic top view of the two-column lift of the present utility model.

[0028] Among them, 1. Telescopic arm; 11. End; 2. Lifting component; 21. Horizontal support plate; 22. Lifting plate; 23. First support plate; 231. Circular groove; 24. Second support plate; 3. Rotating shaft; 31. Step; 4. Through hole; 5. Washer; 6. Rectangular block; 7. Small hole; 71. Guide sleeve; 72. Nut; 8. Pin; 9. Column. Specific embodiments

[0029] The present utility model will be described in detail below with reference to the embodiments shown in the drawings. However, it should be noted that these embodiments are not intended to limit the present utility model. Any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art based on these embodiments shall fall within the protection scope of the present utility model.

[0030] Embodiment 1

[0031] Refer Figures 1 to 4 As shown, this embodiment discloses a specific implementation of an articulated arm (hereinafter referred to as "articulated arm") for a vehicle lift.

[0032] The articulated arm for a vehicle lift, refer Figures 1 to 4 As shown, it includes a telescopic arm 1 and a lifting component 2 provided at the end 11 of the telescopic arm 1. The telescopic arm 1 includes at least one-stage telescopic structure 12, and can also be two-stage telescopic, three-stage telescopic or four-stage telescopic. A rotating shaft 3 is provided between the lifting component 2 and the telescopic arm 1, and a through hole 4 cooperating with the rotating shaft 3 is provided at the end 11 of the telescopic arm 1; the lifting component 2 includes a horizontal support plate 21 and a lifting plate 22 provided above the horizontal support plate 21; a first support plate 23 is installed at the bottom of the horizontal support plate 21, and a second support plate 24 is installed at the top of the horizontal support plate 21. The rotating shaft 3 sequentially passes through the second support plate 24, the through hole 4 and the first support plate 23, and a step 31 is provided at the top of the rotating shaft 3, and the step 31 abuts against the second support plate 24; see Figure 1, the distance L between the center line of the through hole 4 and the center line of the lifting plate 22 is 150mm-260mm, and the total length M of the telescopic arm 1 and the lifting assembly 2 is 500mm-2000mm; if L is 150mm and M is 2000mm, L accounts for 7.5% of M; if L is 260mm and M is 2000mm, L accounts for 13% of M; if L is 150mm and M is 1500mm, L accounts for 10% of M; if L is 200mm and M is 2000mm, L accounts for 10% of M; if L is 150mm and M is 1000mm, L accounts for 15% of M, etc.

[0033] Specifically, see Figures 1 to 4 The center line of the through hole 4 is the rotation center of the lifting plate 22. The distance L between the center line of the through hole 4 and the center line of the lifting plate 22 is 150mm-260mm. The rotation center is close to the lifting plate 22. On the one hand, the position of the lifting plate 22 can be adjusted more accurately, which is convenient for fine-tuning the lifting point. On the other hand, when the lifting plate 22 lifts the vehicle, the pressure on the rotation center is small, the second support plate 24, the first support plate 23, the rotating shaft 3 and the end 11 of the telescopic arm 1 are subjected to small deformation force, the rotating shaft 3 and the end 11 of the telescopic arm 1 are less worn, and the maintenance or replacement cost is reduced.

[0034] See also Figures 1 to 4 After the lifting plate 22 is rotated to a certain angle, in order to fix the lifting plate 22 and prevent it from swinging left and right, a plurality of circular grooves 231 are provided on the upper surface of the first support plate 23, and the plurality of circular grooves 231 are arranged in a semicircular arc; a washer 5 is provided between the second support plate 24 and the through hole 4, and a rectangular block 6 is provided on the washer 5, and the rectangular block 6 is provided in the middle of the end 11 of the telescopic arm 1; a small hole 7 is provided on the end 11 of the telescopic arm 1, and a latch 8 is provided in the small hole 7, and a guide sleeve 71 is provided above the small hole 7, and a nut 72 is installed on the guide sleeve 71, and the nut 72 is connected to the rectangular block 6. The lifting plate 22 is matched with the block 6, the nut 72 is a hexagonal nut, and any top corner of the nut 72 abuts against the side of the rectangular block 6; the pin 8 cooperates with the circular groove 231; when the rotation angle of the lifting plate 22 needs to be adjusted, the pin 8 is pulled upward and disengaged from the circular groove 231. After adjusting the lifting plate 22 to a certain angle, the pin 8 is pressed down and entered into the corresponding circular groove 231, so that the lifting plate 22 no longer swings left and right, thereby locking the lifting plate 22. At the same time, during the repeated rotation of the lifting plate 22, since any top corner of the nut 72 abuts against the side of the rectangular block 6, the washer 5 is fixed by the rectangular block 6 and does not move with it.

[0035] Example 2

[0036] See also Figure 5 , this embodiment discloses a specific implementation of a two-post lift.

[0037] Two-post lift, each column of the two-post lift is provided with the articulated arm for a vehicle lift described in Embodiment 1. Specifically, refer to Figure 5 , each column 9 is provided with two articulated arms for a vehicle lift described in Embodiment 1. The lifting trays 22 of each articulated arm rotate around the rotating shaft 3, and can be flexibly applied to vehicles with long wheelbases or short wheelbases.

[0038] For the similarities between the two-post lift of Embodiment 2 and that of Embodiment 1, please refer to Embodiment 1 and will not be elaborated here.

Claims

1. The articulated arm for a vehicle lift, characterized in that, It includes a telescopic arm and a lifting assembly arranged at the end of the telescopic arm. A rotating shaft is arranged between the lifting assembly and the telescopic arm, and a through hole cooperating with the rotating shaft is arranged at the end of the telescopic arm. The lifting assembly includes a horizontal support plate and a lifting disc arranged above the horizontal support plate. A first support plate is installed at the bottom of the horizontal support plate, and a second support plate is installed at the top of the horizontal support plate. The rotating shaft sequentially passes through the second support plate, the through hole and the first support plate. The distance L between the center line of the through hole and the center line of the lifting disc is 150 mm - 260 mm.

2. The articulated arm for a vehicle lift according to claim 1, characterized in that, The total length M of the telescopic arm and the lifting assembly is 500 mm - 2000 mm.

3. The articulated arm for a vehicle lift according to claim 1, characterized in that, A plurality of circular grooves are arranged on the upper surface of the first support plate, and the plurality of circular grooves are arranged in a semi-circular arc.

4. The articulated arm for a vehicle lift according to claim 3, characterized in that, A washer is arranged between the second support plate and the through hole.

5. The articulated arm for a vehicle lift according to claim 4, characterized in that, A rectangular block is arranged on the washer, and the rectangular block is arranged in the middle of the end of the telescopic arm.

6. The articulated arm for a vehicle lift according to claim 5, characterized in that, A small hole is arranged at the end of the telescopic arm, a pin is arranged in the small hole, a guide sleeve is arranged above the small hole, a nut is installed on the guide sleeve, and the nut cooperates with the rectangular block.

7. The articulated arm for a vehicle lift as claimed in claim 6, wherein, The nut is a hexagonal nut, and any vertex angle of the nut abuts against the side surface of the rectangular block.

8. The articulated arm for a vehicle lift according to claim 7, characterized in that, The pin cooperates with the circular groove.

9. The articulated arm for a vehicle lift according to any one of claims 1-8, characterized in that, The telescopic arm includes at least one-stage telescopic structure.

10. Double-column lift, characterized in that, Each column of the two-column lift is provided with the articulated arm for the vehicle lift according to any one of claims 1 - 9.

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