Automobile chassis lifting device

Abstract

The utility model relates to the technical field of automobile detection, and discloses an automobile chassis lifting device which comprises two supporting bases, the upper surfaces of the two supporting bases are fixedly connected with a gantry fixing frame, the inner wall of a limiting guide groove is rotatably connected with a lifting screw rod, the surface of the lifting screw rod is in threaded connection with a lifting block, and the lifting block is in threaded connection with the gantry fixing frame. Supporting assemblies are arranged on the opposite faces of the two lifting blocks correspondingly and used for supporting and limiting an automobile chassis. The lifting lead screws are arranged in the gantry fixing frame, when an automobile chassis is lifted, the driving motor and the driving transverse rod can be used for driving the two lifting lead screws to rotate at the same time, and then the lifting lead screws are used for driving the supporting strip blocks to move up and down; therefore, the supporting arms on the surfaces of the two supporting strip blocks are used for synchronously supporting and lifting the automobile chassis, the adjustability is high, and the automobile chassis can be conveniently lifted and positioned to different heights according to actual inspection and maintenance requirements.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, and more specifically to an automotive chassis lifting device. Background Technology

[0002] The automobile chassis consists of four parts: the transmission system, the running system, the steering system, and the braking system. The chassis's function is to support and mount the automobile engine and its various components and assemblies, shape the overall form of the automobile, receive power from the engine to enable the automobile to move, and ensure normal driving. Therefore, by inspecting the automobile chassis, the possibility of accidents during automobile driving can be greatly reduced.

[0003] For example, a car chassis inspection lifting device, as disclosed in patent publication number CN218823208U, includes a support plate. The inner wall of the support plate has a sliding groove, and the inner cavity of the sliding groove has a sliding assembly. A spotlight is rotatably sleeved on the outside of a second rotating rod. A camera is fixedly connected to the top of the second connecting block. A fixing assembly is rotatably connected to the side of the support plate. Four grooves are formed on the top of the support plate, and a pressable limiting block is fixedly connected to the side of two mutually symmetrical grooves. This device greatly improves inspection efficiency and makes it easier for maintenance personnel to quickly perform inspections and repairs.

[0004] The car chassis inspection lifting device proposed in the above patent documents has a problem because the chassis support structure of the device occupies too much space on the car chassis, making it inconvenient for workers to perform inspection operations on different parts of the car chassis. Therefore, it is necessary to improve the above device to address this problem. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automobile chassis lifting device with the advantages of high adjustability and convenient maintenance, so as to solve the problems existing in the background art.

[0006] A car chassis lifting device includes two support bases. A gantry frame is fixedly connected to the upper surface of the two support bases. A limit guide groove is formed on the inner surface of the gantry frame. A lifting screw is rotatably connected to the inner wall of the limit guide groove. A lifting block is threadedly connected to the surface of the lifting screw. Support components are provided on the opposite surfaces of the two lifting blocks. The support components are used to support and limit the car chassis.

[0007] The support assembly includes support bars fixedly connected to the surface of the lifting block. Each of the two support bars has a strip-shaped mounting groove on its opposite surface. A bidirectional adjusting screw is rotatably connected to the inner wall of the strip-shaped mounting groove. Two adjusting blocks are threadedly connected to the surface of the bidirectional adjusting screw. Two positioning plates with corresponding vertical positions are fixedly connected to the surface of the support bars. Two mutually symmetrical support arms are rotatably connected to the surface of the positioning plates. A linkage rod is rotatably connected to the surface of the adjusting block. The end of the linkage rod away from the adjusting block is rotatably connected to the surface of the support arm.

[0008] Furthermore, a support block is fixedly connected to the upper surface of the support arm, and a rubber anti-slip sleeve is fixedly provided on the upper surface of the support block. The rubber anti-slip sleeve can play an anti-slip and cushioning role for the car chassis.

[0009] Furthermore, the adjusting block is slidably connected to the inner wall of the strip mounting groove, and one end of the bidirectional adjusting screw extends to the outside of the strip mounting groove and is fixedly connected to an adjusting handwheel, which is used to adjust the position of the two support arms.

[0010] Furthermore, a drive motor is fixedly connected to the side of the gantry fixing frame, and the output shaft of the drive motor extends into the interior of the limiting guide groove and is fixedly connected to a drive crossbar.

[0011] Furthermore, the end of the drive crossbar away from the drive motor is rotatably connected to the inner wall of the limiting guide groove, and two drive gears are fixedly connected to the surface of the drive crossbar.

[0012] Furthermore, each of the two lifting screws is fixedly connected to a driven gear at its top end. The driven gear is positioned corresponding to the driving gear, and the driving gear and the driven gear mesh with each other.

[0013] Furthermore, both the lifting block and the limiting guide groove are rectangular structures, and the lifting block is slidably connected to the inner wall of the limiting guide groove. The limiting guide groove can limit and guide the lifting block.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model features a lifting screw installed inside the gantry frame. When lifting the car chassis, the drive motor and drive crossbar simultaneously drive the two lifting screws to rotate, which in turn drive the support blocks to move up and down. Thus, the support arms on the surfaces of the two support blocks synchronously support and lift the car chassis. This design offers high adjustability, allowing the car chassis to be lifted and positioned at different heights according to actual inspection and maintenance needs. Furthermore, this support structure occupies little chassis space, making it convenient for operators to work on the car chassis.

[0016] 2. This utility model, by setting two support blocks and providing adjustable support arms on the surface of the support blocks, can not only provide stable support and limit the car chassis using the support blocks on the surface of the support arms, but also allows for easy adjustment of the distance between the left and right support blocks according to the width of the car chassis, making it suitable for supporting and limiting chassis of different widths. Attached Figure Description

[0017] Figure 1 This is a three-dimensional first-view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional second-view structure of this utility model;

[0019] Figure 3 This is a partial orthogonal sectional view of the gantry fixing frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the support strip of this utility model.

[0021] The attached diagram is labeled as follows: 1. Support base; 2. Gantry fixing frame; 3. Limiting guide groove; 4. Lifting screw; 5. Lifting block; 6. Support strip; 7. Strip mounting groove; 8. Bidirectional adjusting screw; 9. Adjusting block; 10. Positioning plate; 11. Support arm; 12. Linkage rod; 13. Support block; 14. Adjusting handwheel; 15. Drive motor; 16. Drive crossbar; 17. Drive gear; 18. Driven gear. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The automobile chassis lifting device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figure 1-4 This utility model provides an automobile chassis lifting device, including two support bases 1, with a gantry fixing frame 2 fixedly connected to the upper surface of the two support bases 1. A limit guide groove 3 is opened on the inner surface of the gantry fixing frame 2, and a lifting screw 4 is rotatably connected to the inner wall of the limit guide groove 3. A lifting block 5 is threadedly connected to the surface of the lifting screw 4. Support components are provided on the opposite surfaces of the two lifting blocks 5. The support components are used to support and limit the automobile chassis.

[0024] Both the lifting block 5 and the limiting guide groove 3 are rectangular structures, and the lifting block 5 is slidably connected to the inner wall of the limiting guide groove 3. The limiting guide groove 3 can limit and guide the lifting block 5.

[0025] A drive motor 15 is fixedly connected to the side of the gantry frame 2. The output shaft of the drive motor 15 extends into the interior of the limiting guide groove 3 and is fixedly connected to a drive crossbar 16. One end of the drive crossbar 16 away from the drive motor 15 is rotatably connected to the inner wall of the limiting guide groove 3, and two drive gears 17 are fixedly connected to the surface of the drive crossbar 16.

[0026] Both lifting screws 4 are fixedly connected to driven gears 18 at their top ends. The position of driven gears 18 corresponds to that of driving gears 17, and driving gears 17 and driven gears 18 mesh with each other.

[0027] The support assembly includes support strips 6 fixedly connected to the surface of the lifting block 5. Each of the two support strips 6 has a strip-shaped mounting groove 7 on its opposite side. A bidirectional adjusting screw 8 is rotatably connected to the inner wall of the strip-shaped mounting groove 7. One end of the bidirectional adjusting screw 8 extends to the outside of the strip-shaped mounting groove 7 and is fixedly connected to an adjusting handwheel 14.

[0028] The surface of the bidirectional adjusting screw 8 is threaded with two adjusting blocks 9. The adjusting blocks 9 are slidably connected to the inner wall of the strip mounting groove 7. The surface of the support block 6 is fixedly connected with two positioning plates 10 with corresponding upper and lower positions. The surface of the positioning plates 10 is rotatably connected with two mutually symmetrical support arms 11. The upper surface of the support arm 11 is fixedly connected with a support block 13. The upper surface of the support block 13 is fixedly provided with a rubber anti-slip sleeve, which can play an anti-slip and cushioning role for the car chassis.

[0029] It is worth noting that by setting two support blocks 6 and providing two adjustable support arms 11 on the surface of the support blocks 6, during use, the adjustment handwheel 14 can be turned to drive the bidirectional adjustment screw 8 to rotate, thereby moving the two adjustment blocks 9. The adjustment blocks 9 drive the support arms 11 to rotate on the surface of the positioning plate 10 through the linkage rod 12. Thus, the distance between the left and right support blocks 13 can be adjusted according to the width of the car chassis, so that the upper surface of the support block 13 contacts and abuts against the bottom of the car chassis. This is suitable for supporting and limiting chassis of different widths.

[0030] The surface of the adjusting block 9 is rotatably connected to the linkage rod 12. The end of the linkage rod 12 away from the adjusting block 9 is rotatably connected to the surface of the support arm 11. The adjusting handwheel 14 is used to adjust the position of the two support arms 11.

[0031] When lifting the car chassis, the four support arms 11 are first rotated and adjusted to be below the car chassis so that the support block 13 contacts the bottom of the chassis. Then, the drive motor 15 drives the drive crossbar 16 to rotate. The drive crossbar 16 drives the two lifting screws 4 to rotate simultaneously through the drive gear 17 and the driven gear 18. Then, the lifting screws 4 drive the lifting block 5 to move in the limit guide groove 3 of the gantry frame 2, thereby driving the support bar 6 to move up and down. At the same time, the support arms 11 on both sides support and lift the car chassis synchronously. This allows the car chassis to be lifted and positioned to different heights according to actual inspection and maintenance needs. Moreover, this support structure occupies little chassis space, making it convenient for workers to operate the car chassis.

[0032] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lifting device for a motor vehicle chassis comprising two support bases (1), characterised in that: The upper surface of the two support bases (1) is fixedly connected with a gantry fixing frame (2), the inner surface of the gantry fixing frame (2) is provided with a limiting guide groove (3), the inner wall of the limiting guide groove (3) is rotatably connected with a lifting lead screw (4), the surface of the lifting lead screw (4) is threadedly connected with a lifting block (5), and the opposite surfaces of the two lifting blocks (5) are provided with support assemblies for supporting and limiting the automobile chassis. The support assembly comprises a support strip block (6) fixedly connected to the surface of the lifting block (5), the opposite surfaces of the two support strip blocks (6) are provided with a strip-shaped mounting groove (7), the inner wall of the strip-shaped mounting groove (7) is rotatably connected with a bidirectional adjusting lead screw (8), the surface of the bidirectional adjusting lead screw (8) is threadedly connected with two adjusting blocks (9), the surface of the support strip block (6) is fixedly connected with two positioning plates (10) corresponding in position, the surface of the positioning plate (10) is rotatably connected with two mutually symmetrical support arms (11), the surface of the adjusting block (9) is rotatably connected with a linkage rod (12), and the end, away from the adjusting block (9), of the linkage rod (12) is rotatably connected with the surface of the support arm (11).

2. A vehicle chassis lifting device according to claim 1, characterised in that: The upper surface of the support arm (11) is fixedly connected with a support block (13), the upper surface of the support block (13) is fixedly provided with a rubber anti-skid sleeve, and the rubber anti-skid sleeve can prevent the automobile chassis from slipping and buffering.

3. The lift device of claim 1, wherein: The adjusting block (9) and the inner wall of the strip-shaped mounting groove (7) are slidably connected, one end of the bidirectional adjusting lead screw (8) extends to the outside of the strip-shaped mounting groove (7), and the adjusting hand wheel (14) is fixedly connected.

4. The lift device of claim 1, wherein: The side surface of the gantry fixing frame (2) is fixedly connected with a driving motor (15), the output shaft of the driving motor (15) extends to the inside of the limiting guide groove (3), and the driving cross rod (16) is fixedly connected.

5. A vehicle chassis lifting device according to claim 4, wherein: The end, away from the driving motor (15), of the driving cross rod (16) is rotatably connected with the inner wall of the limiting guide groove (3), and the surface of the driving cross rod (16) is fixedly connected with two driving gears (17).

6. A vehicle chassis lifting device according to claim 5, wherein: The top end of each lifting lead screw (4) is fixedly connected with a driven gear (18), the position of the driven gear (18) corresponds to that of the driving gear (17), and the driving gear (17) and the driven gear (18) are meshed with each other.

7. The lift device of claim 1, wherein: The lifting block (5) and the limiting guide groove (3) are rectangular structures, and the lifting block (5) and the inner wall of the limiting guide groove (3) are slidably connected, and the limiting guide groove (3) can limit and guide the lifting block (5).

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