Foldable automobile lifting machine supporting arm
By designing the toothed block, semi-circular gear, and telescopic arm structure of the foldable car lift arm, the problem of fixed lifting point position was solved, enabling flexible adjustment and stable lifting of the pallet, and avoiding battery damage and accidents.
Patent Information
- Application Number
- CN202422773315.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-14
AI Technical Summary
Existing two-post lifts have straight arms with fixed lifting points, making it difficult to adapt to the differences between different vehicles. In particular, the battery position of battery-powered vehicles cannot be lifted, resulting in a small lifting range and inaccurate positioning, which may cause battery damage or accidents.
A foldable car lift arm was designed. Through a combination of toothed blocks, semi-circular gears, support arms and telescopic arms, the angle and position of the pallet can be adjusted. The cooperation of levers and limit rods ensures the accuracy and stability of the pallet position.
It enables flexible adjustment of the tray to adapt to the lifting needs of different vehicles, prevents battery damage, and improves the safety and stability of lifting.
Smart Images
Figure CN223509571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lift technology, specifically a foldable car lift arm. Background Technology
[0002] Automotive repair is a general term for automobile maintenance and repair. It involves using technical means to troubleshoot malfunctioning vehicles, identify the causes of the faults, and take measures to eliminate the faults and restore the vehicles to a certain performance and safety standard. Automotive repair includes major repairs and minor repairs. Major repairs refer to restorative repairs that restore a vehicle to its good technical condition and fully (or nearly fully) restore its lifespan by repairing or replacing any parts (including basic components). Minor repairs refer to operational repairs that ensure or restore a vehicle's working ability by replacing or repairing individual parts. Two-post lifts are often used in automotive repair, and they are a common type of specialized mechanical lifting equipment used in automotive repair and maintenance shops.
[0003] Currently, two-post lifts use straight arms, lifting the vehicle by supporting four points on the chassis. The lifting points are fixed and vary slightly between vehicles. In battery-powered vehicles, the battery is located on the chassis, in an area that cannot be lifted, resulting in a smaller lifting surface. Current lift arms also suffer from insufficient flexibility in adjusting the lifting position. Furthermore, due to the weight of vehicles, especially battery-powered vehicles, inaccurate lifting or mishandling can damage the battery and even lead to the vehicle falling off the platform. Utility Model Content
[0004] The purpose of this invention is to provide a foldable car lift arm to solve the problems mentioned in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A foldable car lift support arm includes a middle support arm and a tray. One end of the middle support arm has a mounting cavity, and a toothed block is slidably disposed inside the mounting cavity. A lever is hinged to the upper end of the toothed block, and a limit rod is provided at one end of the lever. A semi-circular gear is meshed at one end of the toothed block, and the semi-circular gear is fixedly disposed at the bottom end of a support arm. The support arm is rotatably connected to the end of the middle support arm via a pin. A telescopic arm is slidably disposed at the bottom end of the support arm, and the tray is disposed on the telescopic arm.
[0007] In a preferred embodiment, a first spring is fixedly provided at one end of the tooth block, and one end of the first spring is provided on the inner sidewall of the mounting cavity. The first spring allows the tooth block to move closer to the semi-circular gear.
[0008] In a preferred embodiment, a waist-shaped slot is provided on the outer side wall of the middle support arm, and one end of the lever passes through the waist-shaped slot. The lever is hinged to the toothed block by a pin. The waist-shaped slot facilitates the rotation of the lever, and the rotation of the lever can drive the toothed block to move.
[0009] In a preferred embodiment, the limiting rod is slidably disposed on the side wall of the middle support arm, and one end of the limiting rod is disposed in the mounting cavity. A limiting plate is fixedly disposed on the outer side of the limiting rod, and a second spring is fixedly disposed on one end of the limiting plate. The second spring is sleeved on the limiting rod, and a pull ring is disposed on the outer end of the limiting rod located on the middle support arm. The limiting rod can limit the lever and prevent the lever from driving the tooth block away from the semi-circular gear during use, which would cause the semi-circular gear to become unstable after losing its limit.
[0010] In a preferred embodiment, a groove is provided at the bottom end of the support arm, and a slider is fixedly provided at the upper end of the telescopic arm. The slider is a T-shaped slider and is slidably disposed in the groove. The slider and the groove facilitate the adjustment of the support arm, thereby enabling the adjustment of the position of the tray.
[0011] In a preferred embodiment, a fastening bolt is provided at the bottom end of the telescopic arm, and a scale line is provided on the support arm. The fastening bolt can fix the telescopic arm, while the scale line can determine the position of the telescopic arm.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model is equipped with a structure including a middle support arm, a toothed block, a semi-circular gear, a support arm, a telescopic arm, and a lever. The lever drives the toothed block to move, and when the toothed block meshes with the semi-circular gear, the angle of the tray can be adjusted. The telescopic arm is slidably mounted on the support arm, which can adjust the horizontal position of the tray, making the tray suitable for different battery-powered vehicles, making the lifting position more accurate, and preventing the tray from damaging the battery.
[0014] 2. This utility model, by setting up a limit rod, a second spring, a pull ring, a T-shaped slider, and a slide groove, makes the tray more stable after the position is adjusted. The limit rod limits the lever to prevent the lever from moving during use, which would cause the tooth block and the semi-circular gear to separate. After the semi-circular gear loses the limiting effect of the tooth block, it rotates, thereby causing the tray to move. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2This is a cross-sectional view of the present invention;
[0017] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0018] Figure 4 This is a schematic diagram of the connection structure between the telescopic arm and the support arm of this utility model.
[0019] The following are the labels in the diagram: 1. Middle support arm; 2. Tray; 3. Mounting cavity; 4. Tooth block; 5. Semi-circular gear; 6. Support arm; 7. Pin; 8. Telescopic arm; 9. Lever; 10. Limiting rod; 11. First spring; 12. Waist-shaped slot; 13. Pin; 14. Limiting plate; 15. Second spring; 16. Pull ring; 17. Slide groove; 18. Slider; 19. Scale line. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a foldable car lift support arm, the technical solution of which is as follows:
[0022] A foldable car lift support arm includes a middle support arm 1 and a tray 2. One end of the middle support arm 1 has a mounting cavity 3. A toothed block 4 is slidably disposed inside the mounting cavity 3. A lever 9 is hinged to the upper end of the toothed block 4. A limit rod 10 is disposed at one end of the lever 9. A semi-circular gear 5 is meshed at one end of the toothed block 4. The semi-circular gear 5 is fixedly disposed at the bottom end of a support arm 6. The support arm 6 is rotatably connected to the end of the middle support arm 1 through a pin 7. A telescopic arm 8 is slidably disposed at the bottom end of the support arm 6, and the tray 2 is disposed on the telescopic arm 8.
[0023] In a preferred embodiment, a first spring 11 is fixedly provided at one end of the tooth block 4. One end of the first spring 11 is provided on the inner side wall of the mounting cavity 3. The first spring 11 can push the tooth block 4 to move toward the semi-circular gear 5, so that the tooth block 4 is limited to the semi-circular gear 5.
[0024] In a preferred embodiment, a waist-shaped slot 12 is provided on the outer side wall of the middle support arm 1, and one end of the lever 9 is provided through the waist-shaped slot 12. The lever 9 is hinged to the toothed block 4 by a pin 13. The pin 13 hinges the lever 9 to the toothed block 4, so that the lever 9 can drive the toothed block 4 to move when it rotates.
[0025] In a preferred embodiment, the limiting rod 10 is slidably disposed on the side wall of the middle support arm 1, and one end of the limiting rod 10 is disposed in the mounting cavity 3. A limiting plate 14 is fixedly disposed on the outer side of the limiting rod 10, and a second spring 15 is fixedly disposed on one end of the limiting plate 14. The second spring 15 is sleeved on the limiting rod 10. A pull ring 16 is disposed on the outer end of the limiting rod 10 located on the middle support arm 1. The pull ring 16 pulls the limiting rod 10 to move, thereby compressing the second spring 15. After the pull ring 16 is released, the second spring 15 can push the limiting rod 10 towards the inner side of the mounting cavity 3, thereby limiting the lever 9 by the limiting rod 10.
[0026] In a preferred embodiment, the bottom end of the support arm 6 is provided with a sliding groove 17, and the upper end of the telescopic arm 8 is fixedly provided with a slider 18, which is a T-shaped slider. The slider 18 is slidably disposed in the sliding groove 17. When the length of the tray 2 is adjusted, the slider 18 at the bottom end of the telescopic arm 8 moves in the sliding groove 17.
[0027] In a preferred embodiment, the bottom end of the telescopic arm 8 is provided with a fastening bolt, and the support arm 6 is provided with a scale line 19. The fastening bolt can fix the telescopic arm 8, while the scale line 19 can determine the position of the telescopic arm 8.
[0028] The working principle of this utility model is as follows: When the angle of the tray 2 needs to be adjusted, the limiting rod 10 is pulled outward by the pull ring 16, so that the limiting rod 10 is separated from the end of the lever 9. Then, by turning the lever 9, the lever 9 drives the toothed block 4 to move, so that the toothed block 4 is separated from the semi-circular gear 5. After the semi-circular gear 5 loses its limiting function, the support arm 6 can be directly rotated to adjust the angle of the tray 2. After the adjustment is completed, the lever 9 is released, and the toothed block 4 moves closer to the semi-circular gear 5 under the action of the first spring 11, so that the semi-circular gear 5 meshes with the toothed block 4. Then, the pull ring 16 is released, and the limiting rod 10 moves inward to the mounting cavity 3 under the action of the second spring 15. The limiting rod 10 is used to limit the lever 9 to prevent the toothed block 4 from moving. When adjusting the length of the tray 2, the fastening bolt is loosened, so that the slider 18 moves in the slide groove 17, thereby adjusting the length of the telescopic arm 8. The position of the telescopic arm 8 is judged by the scale line 19. After the adjustment is completed, the telescopic arm 8 is fixed by the fastening bolt.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A foldable car lift support arm, comprising a middle support arm (1) and a tray (2), characterized in that: One end of the middle support arm (1) is provided with an installation cavity (3). A toothed block (4) is slidably arranged inside the installation cavity (3). A lever (9) is hinged to the upper end of the toothed block (4). A limit rod (10) is provided at one end of the lever (9). A semi-circular gear (5) is meshed at one end of the toothed block (4). The semi-circular gear (5) is fixedly arranged at the bottom end of the support arm (6). The support arm (6) is rotatably connected to the end of the middle support arm (1) through a pin (7). A telescopic arm (8) is slidably arranged at the bottom end of the support arm (6), and the tray (2) is arranged on the telescopic arm (8).
2. The foldable car lift arm according to claim 1, characterized in that: One end of the toothed block (4) is fixedly provided with a first spring (11), and one end of the first spring (11) is provided on the inner side wall of the mounting cavity (3).
3. The foldable car lift arm according to claim 1, characterized in that: The outer side wall of the middle support arm (1) is provided with a waist-shaped slot (12), one end of the lever (9) is set through the waist-shaped slot (12), and the lever (9) is hinged to the tooth block (4) through the pin (13).
4. The foldable car lift arm according to claim 1, characterized in that: The limiting rod (10) is slidably disposed on the side wall of the middle support arm (1), and one end of the limiting rod (10) is disposed in the mounting cavity (3). A limiting plate (14) is fixedly disposed on the outside of the limiting rod (10). A second spring (15) is fixedly disposed on one end of the limiting plate (14). The second spring (15) is sleeved on the limiting rod (10). A pull ring (16) is disposed on one end of the limiting rod (10) located on the outside of the middle support arm (1).
5. A foldable car lift arm according to claim 1, characterized in that: The bottom end of the support arm (6) is provided with a sliding groove (17), and the upper end of the telescopic arm (8) is fixedly provided with a slider (18). The slider (18) is a T-shaped slider, and the slider (18) is slidably disposed in the sliding groove (17).
6. A foldable car lift arm according to claim 5, characterized in that: The bottom end of the telescopic arm (8) is provided with a fastening bolt, and the support arm (6) is provided with a scale line (19).