A lifting device for vehicle chassis detection

Abstract

The present invention discloses a lifting device for vehicle chassis detection, including a bottom plate frame, and a central universal shaft is movably connected to the center position of the top surface of the bottom plate frame. The present invention relates to the field of vehicle maintenance tool equipment. Through the structure of the central universal shaft and the bearing frame, in cooperation with the four corner universal shafts and the telescopic rods, the vehicle chassis detection lifting device enables the bearing frame to be adjustable in orientation, facilitating the maintenance operation of the vehicle chassis. Through the relatively independent arrangement of the four telescopic rods, the height of each telescopic rod can be adjusted separately, facilitating the fine adjustment of the position of the bearing frame and the leveling operation of the vehicle chassis. By deflecting the lead screw, the extension plates can be driven to move away from each other and expand, increasing the overall area of the bearing frame and facilitating the bearing of chassis with different widths. This solves the problems that the existing maintenance devices are inconvenient to adjust the orientation according to the maintenance operation, not convenient for leveling the vehicle chassis, and not convenient to extend and adapt to the size of the vehicle chassis.

Description

Technical Field

[0001] The present invention relates to the field of vehicle maintenance tools and equipment, and particularly to a lifting device for vehicle chassis detection. Background Art

[0002] During the use of vehicles, maintenance is often required. During maintenance, it is necessary to raise the vehicle chassis to facilitate the maintenance and observation of operators.

[0003] The existing patent (Publication No.: CN109319690A) discloses an adjustable lifting device for an automobile chassis, which relates to the technical field of automobiles and includes a bottom plate and a reinforced cement tank. The bottom plate is arranged in the reinforced cement tank and is provided with a working area and an access area. A front adjustment cylinder and a rear adjustment cylinder are arranged at the working area, and the end of the piston rod of the front adjustment cylinder is installed with a front sliding plate. In the process of realizing the present invention, the inventor found that at least the following problems in the prior art have not been solved: 1. This device is not convenient for adjusting the orientation of the chassis. In the actual maintenance process, it is difficult to change the position of the chassis according to the visual field and operation requirements in some cases; 2. The overall linkage of this device is relatively strong, so that when adjusting the vehicle chassis, it is difficult to independently adjust and maintain the positions of the four corners of the chassis, and the use is not convenient enough; 3. This device cannot be extended, and it is not convenient to adapt to chassis structures of different widths. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a lifting device for vehicle chassis detection, which solves the problems that the existing maintenance device is not convenient for orientation adjustment according to maintenance operations, not convenient for leveling the vehicle chassis, and not convenient for extending and adapting to the size of the vehicle chassis.

[0005] To achieve the above purposes, the present invention is realized through the following technical solutions: A lifting device for vehicle chassis detection includes a bottom plate frame. The center position of the top surface of the bottom plate frame is movably connected with a central universal joint, and the top of the central universal joint is fixedly connected with a bearing frame.

[0006] The four corners of the bearing frame are all movably connected with extension devices.

[0007] The outer edge of the top surface of the bottom plate frame is provided with a transmission device, and the transmission device is movably connected with the extension device.

[0008] Preferably, the bottom plate frame is of a rectangular frame structure, a cross-shaped skeleton is fixedly connected to the middle of the bottom plate frame, and the bottom end of the central universal joint is fixedly connected to the center position of the cross-shaped skeleton.

[0009] Preferably, the extension device includes corner boxes, the number of the corner boxes is four, the four corner boxes are respectively fixedly connected to the four corners of the bearing frame, an extension plate is sleeved inside the corner box, a movable groove is formed at one corner of the extension plate, three balls are movably connected inside the movable groove, the number of the balls is three, and the three balls are respectively arranged at three corners of the movable groove. The extension plate penetrates through the side surface of the inner wall of the corner box and extends to the outside of the bearing frame. A corner universal shaft is fixedly connected to the bottom surface of the extension plate, and a telescopic rod is fixedly connected to the bottom end of the corner universal shaft. The cylinder body of the telescopic rod is fixedly connected to the top of the transmission device.

[0010] Preferably, limiting strips are fixedly connected to the outer edges of the corner boxes, and two of the four side surfaces of the corner boxes are of an open structure.

[0011] Preferably, the movable groove is a rectangular groove, three hemispherical grooves are formed on the top surface of the inner wall of the movable groove, and the three balls are respectively movably sleeved inside the hemispherical grooves.

[0012] Preferably, the transmission device includes a transmission groove, the transmission groove is opened at the midline position of the top surface of the bottom plate frame, a transmission rod is rotatably connected inside the transmission groove, and turbines are fixedly connected to both ends of the transmission rod.

[0013] Worms are rotatably connected to the front and rear sides of the top surface of the bottom plate frame, the worms are movably connected to the turbines, lead screws are fixedly connected to both ends of the worms, the thread directions of the left and right lead screws are opposite, a nut seat is threadedly connected to the surface of the lead screw, a chute is formed on the surface of the bottom plate frame, and the bottom of the nut seat is slidably connected inside the chute.

[0014] A linkage seat is fixedly connected to the top of the nut seat, a linkage rod is sleeved on the surface of the linkage seat, and the top of the linkage seat is movably connected to the extension device.

[0015] Preferably, a reduction motor is fixedly connected to one end of the transmission rod, and support plates are movably sleeved on both ends of the transmission rod. The support plates are fixedly connected to the bottom surface of the inner wall of the transmission groove.

[0016] Preferably, the linkage rods are parallel to each other, and both ends of the linkage rods are respectively sleeved on the opposite sides of the front and rear linkage seats.

[0017] Advantageous effects

[0018] The present invention provides a lifting device for vehicle chassis detection. Compared with the prior art, the following advantageous effects are achieved:

[0019] (1) The lifting device for vehicle chassis detection enables the plane of the bearing frame to be adjustable through the structure of the central universal shaft and the bearing frame, in cooperation with the four corner universal shafts and the telescopic rods. Its orientation adjustment and tilt angle range are large, facilitating the maintenance operation of the vehicle chassis.

[0020] (2) The lifting device for vehicle chassis detection is provided with four telescopic rods relatively independently, and the height of each telescopic rod can be adjusted separately, facilitating the fine adjustment of the position of the bearing frame and the leveling operation of the vehicle chassis, making the maintenance operation more convenient.

[0021] (3) The lifting device for vehicle chassis detection, through the structure of the four extension plates, while ensuring the connection effect between the bearing frame and the telescopic rods during the deflection and orientation movement of the bearing frame, can drive the extension plates to move away from each other and expand through the deflection of the lead screw, enhancing the overall area of the bearing frame, facilitating the bearing of chassis with different widths, and facilitating the maintenance operation. Description of the Drawings

[0022] Figure 1 Is the front view of the structure of the present invention;

[0023] Figure 2 Is the top view of the bottom plate frame of the present invention;

[0024] Figure 3 Is the bottom view of the bearing frame of the present invention;

[0025] Figure 4 Is the bottom sectional view of the bearing frame of the present invention.

[0026] In the figure: 1. Bottom plate frame; 2. Central universal shaft; 3. Bearing frame; 4. Extension device; 401. Corner end box; 402. Extension plate; 403. Activity slot; 404. Ball; 405. Corner universal shaft; 406. Telescopic rod; 5. Transmission device; 501. Transmission slot; 502. Transmission rod; 503. Turbine; 504. Worm; 505. Lead screw; 506. Nut seat; 507. Slide slot; 508. Linkage seat; 509. Linkage rod. Detailed Embodiment

[0027] 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.

[0028] Please refer to Figures 1-4, A lifting device for vehicle chassis detection, including a bottom plate frame 1. At the central position of the top surface of the bottom plate frame 1, a central universal shaft 2 is movably connected. At the top of the central universal shaft 2, a bearing frame 3 is fixedly connected.

[0029] At the four corners of the bearing frame 3, extension devices 4 are movably connected respectively.

[0030] On the outer edge of the top surface of the bottom plate frame 1, a transmission device 5 is arranged, and the transmission device 5 is movably connected with the extension device 4.

[0031] In the present invention, the bottom plate frame 1 is of a rectangular frame structure. In the middle of the bottom plate frame 1, a cross-shaped skeleton is fixedly connected. The bottom end of the central universal shaft 2 is fixedly connected to the central position of the cross-shaped skeleton.

[0032] In the present invention, the extension device 4 includes corner end boxes 401. The number of corner end boxes 401 is four. The four corner end boxes 401 are respectively fixedly connected to the four corners of the bearing frame 3. Inside the corner end box 401, an extension plate 402 is sleeved. At one corner of the extension plate 402, a movable groove 403 is opened. Inside the movable groove 403, three balls 404 are movably connected. The number of balls 404 is three. The three balls 404 are respectively arranged at three of the corners of the movable groove 403. The extension plate 402 penetrates through the side surface of the inner wall of the corner end box 401 and extends to the outside of the bearing frame 3. At the bottom surface of the extension plate 402, a corner universal shaft 405 is fixedly connected. At the bottom end of the corner universal shaft 405, a telescopic rod 406 is fixedly connected. The cylinder body of the telescopic rod 406 is fixedly connected to the top of the transmission device 5. It should be noted that through the three balls 404, based on the principle of "three points determine a plane", the three balls 404 ensure the movement of the extension plate 402 and provide a supporting ability for the extension plate 402. Through the relatively independent structures of the four telescopic rods 406, it is convenient to adjust the orientation of the bearing frame 3, convenient for fine-tuning the height of each corner position, convenient for the lifting and leveling operations of the vehicle chassis, convenient for observing the vehicle chassis, and can also adjust the orientation according to the operation requirements, providing more operable space for the maintenance operation.

[0033] In the present invention, limit strips are fixedly connected to the outer edges of the corner end boxes 401. Two of the four side surfaces of the corner end box 401 are of open structures. It should be noted that the extension plate 402 can penetrate and extend out from the side surface of the corner end box 401. Limited by the limit strips, the extension plate 402 can be prevented from detaching from the inside of the corner end box 401.

[0034] In the present invention, the movable groove 403 is a rectangular groove. At the top surface of the inner wall of the movable groove 403, three hemispherical grooves are opened. The three balls 404 are respectively movably sleeved inside the hemispherical grooves.

[0035] In the present invention, the transmission device 5 includes a transmission groove 501 which is opened at the midline position of the top surface of the bottom plate frame 1. A transmission rod 502 is rotatably connected inside the transmission groove 501, and both ends of the transmission rod 502 are fixedly connected with a turbine 503.

[0036] Both the front and rear sides of the top surface of the bottom plate frame 1 are rotatably connected with a worm 504. The worm 504 is movably connected with the turbine 503. Both ends of the worm 504 are fixedly connected with a lead screw 505. The thread directions of the left and right lead screws 505 are opposite. A nut seat 506 is threadedly connected to the surface of the lead screw 505. A chute 507 is opened on the surface of the bottom plate frame 1, and the bottom of the nut seat 506 is slidably connected inside the chute 507.

[0037] The top of the nut seat 506 is fixedly connected with a linkage seat 508. A linkage rod 509 is sleeved through the surface of the linkage seat 508, and the top of the linkage seat 508 is movably connected with the extension device 4.

[0038] In the present invention, one end of the transmission rod 502 is fixedly connected with a reduction motor. Both ends of the transmission rod 502 are movably sleeved with a support plate, and the support plate is fixedly connected to the bottom surface of the inner wall of the transmission groove 501. It should be noted that the rotation of the reduction motor drives the turbine 503 to rotate, drives the worm 504, and then drives the lead screw 505 to rotate, realizing the relative and opposite movement of the nut seat 506, realizing the synchronous relative and opposite movement of the extension plate 402 inside the corner end box 401, and realizing the adjustment of the overall load-bearing area of the load-bearing frame 3, facilitating the adaptation to vehicle chassis of different widths.

[0039] In the present invention, the linkage rods 509 are parallel to each other, and both ends of the linkage rods 509 are respectively sleeved through the opposite sides of the front and rear linkage seats 508.

[0040] During use, the vehicle drives to the top surface of the load-bearing frame 3 and is fixed. The four telescopic rods 406 extend synchronously and at the same rate to raise the chassis. When the orientation needs to be adjusted, each telescopic rod 406 is adjusted to a different height one by one. Under the deflection action of the load-bearing frame 3, the central universal joint 2 rotates to change the overall orientation of the load-bearing frame 3. Subsequently, the four corner universal joints 405 match the action of the load-bearing frame 3 to deflect. The top of the corner universal joint 405 drags and pulls the extension plate 402, so that the extension plate 402 extends and interpenetrates inside the corner end box 401 to make up for the horizontal difference between the top of the corner universal joint 405 and the corner point position of the load-bearing frame 3 under the deflection action of the load-bearing plate, ensuring the stable operation of the equipment.

[0041] When the actual load-bearing area of the load-bearing frame 3 needs to be extended, the reduction motor rotates and, through the transmission effect of the worm wheel 503 and the worm 504, causes the lead screw 505 to rotate, driving the nut seats 506 on the left and right to move away from each other. The nut seats 506 drive the extension plates 402 to extend through the inside of the corner end box 401, realizing the expansion of the actual area of the top surface of the load-bearing frame 3 and the adjustment of the actual load-bearing area.

[0042] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting device for vehicle chassis detection, comprising a bottom plate frame (1), characterized in that: A central universal shaft (2) is movably connected to the center position of the top surface of the bottom plate frame (1), and a bearing frame (3) is fixedly connected to the top of the central universal shaft (2); Extension devices (4) are movably connected to the four corners of the bearing frame (3); A transmission device (5) is arranged on the outer edge of the top surface of the bottom plate frame (1), and the transmission device (5) is movably connected to the extension device (4); The extension device (4) includes corner end boxes (401). The number of the corner end boxes (401) is four. The four corner end boxes (401) are respectively fixedly connected to the four corner positions of the bearing frame (3). An extension plate (402) is sleeved inside the corner end box (401). An activity groove (403) is formed at one corner of the extension plate (402). Three balls (404) are movably connected inside the activity groove (403). The number of the balls (404) is three. The three balls (404) are respectively arranged at three of the corners of the activity groove (403). The extension plate (402) penetrates through the side surface of the inner wall of the corner end box (401) and extends to the outside of the bearing frame (3). A corner universal shaft (405) is fixedly connected to the bottom surface of the extension plate (402). A telescopic rod (406) is fixedly connected to the bottom end of the corner universal shaft (405). The cylinder body of the telescopic rod (406) is fixedly connected to the top of the transmission device (5); Limit strips are fixedly connected to the outer edges of the corner end boxes (401), and two of the four side surfaces of the corner end boxes (401) are of an open structure; The activity groove (403) is a rectangular groove, and three hemispherical grooves are formed on the top surface of the inner wall of the activity groove (403). The three balls (404) are respectively movably sleeved inside the hemispherical grooves.

2. The lifting device for vehicle chassis detection according to claim 1, characterized in that: The bottom plate frame (1) is of a rectangular frame structure, and a cross-shaped skeleton is fixedly connected to the middle of the bottom plate frame (1). The bottom end of the central universal shaft (2) is fixedly connected to the center position of the cross-shaped skeleton.

3. The lifting device for vehicle chassis detection according to claim 1, characterized in that: The transmission device (5) includes a transmission groove (501). The transmission groove (501) is formed at the middle line position of the top surface of the bottom plate frame (1). A transmission rod (502) is rotatably connected inside the transmission groove (501). Turbines (503) are fixedly connected to both ends of the transmission rod (502); Worms (504) are rotatably connected to the front and rear sides of the top surface of the bottom plate frame (1). The worms (504) are movably connected to the turbines (503). Lead screws (505) are fixedly connected to both ends of the worms (504). The thread directions of the left and right lead screws (505) are opposite. A nut seat (506) is threadedly connected to the surface of the lead screw (505). A chute (507) is formed on the surface of the bottom plate frame (1). The bottom of the nut seat (506) is slidably connected inside the chute (507); A linkage seat (508) is fixedly connected to the top of the nut seat (506). A linkage rod (509) is sleeved on the surface of the linkage seat (508). The top of the linkage seat (508) is movably connected to the extension device (4).

4. The lifting device for vehicle chassis detection according to claim 3, characterized in that: One end of the transmission rod (502) is fixedly connected with a reduction motor, and both ends of the transmission rod (502) are movably sleeved with support plates, and the support plates are fixedly connected to the bottom surface of the inner wall of the transmission groove (501).

5. The lifting device for vehicle chassis detection according to claim 3, characterized in that: The linkage rods (509) are parallel to each other, and both ends of the linkage rods (509) are respectively sleeved on the opposite sides of the front and rear linkage seats (508).

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