A lifting device having adjustable support arms
By combining components such as a two-way lead screw, a hydraulic rod, and an electric push rod, flexible adjustment of the support arm is achieved, which solves the shortcomings of existing lifting devices in terms of support arm angle and length adjustment, and improves the applicability and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YINGKOU LIDE ELECTRONICS TECH
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-26
AI Technical Summary
The existing lifting devices have insufficient flexibility in adjusting the support arm angle, and the length adjustment function is missing or inconvenient, resulting in a limited lifting range and difficulty in adapting to the needs of different sizes and vehicle models.
The system employs a bidirectional screw drive to synchronously open and close the support column, combined with a hydraulic rod to adjust the height. The support shaft drives the support arm to rotate, the locking block engages with the slot, the electric push rod adjusts the length of the support plate, and the rubber plate increases friction, thus achieving the adjustability of the support arm.
It improves the versatility and applicability of the lifting device, ensures lifting safety and stability, expands the lifting range, and prevents objects from slipping and being scratched.
Smart Images
Figure CN224411288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting device technology, specifically a lifting device with an adjustable support arm. Background Technology
[0002] Hydraulic lifts are specialized lifting mechanisms used for car repair. They play an irreplaceable role in car maintenance, and are essential for the repair and maintenance of the entire vehicle. As a vital tool for car repair, the demand for lifts has increased significantly. Traditional hydraulic lifts are typically operated manually or electrically.
[0003] Regarding the adjustment of support spacing, most existing lifting devices employ fixed structures or cumbersome adjustment methods for their support columns, making it difficult to flexibly adjust the spacing according to the width of the object being lifted. For objects of different sizes, it is often necessary to replace the lifting device with a different specification or use additional auxiliary tools. Furthermore, different vehicle models and different lifting positions have different requirements for the angle of the support arm and the position of the support plate. However, existing lifting devices are often not flexible enough in terms of adjusting the angle of the support arm. Many lifting devices have their support arms installed at a fixed angle, which cannot be adjusted according to actual needs. At the same time, the length adjustment function of the support arm is missing or the adjustment method is inconvenient, resulting in a limited lifting range. Therefore, this utility model provides a lifting device with an adjustable support arm. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a lifting device with adjustable support arms. This solves the problem that existing lifting devices often employ fixed structures or cumbersome adjustment methods for their support columns, making it difficult to flexibly adjust the spacing according to the width of the object being lifted. For objects of different sizes, it is often necessary to replace the lifting device with a different specification or use additional auxiliary tools. Furthermore, different vehicle models and lifting positions have different requirements for the angle of the support arms and the position of the support plates. However, existing lifting devices are often inflexible in adjusting the angle of the support arms; many lifting devices have support arms installed at a fixed angle, making it impossible to adjust them according to actual needs. At the same time, the lack of length adjustment function for the support arms or the inconvenient adjustment method leads to a limited lifting range.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a lifting device with an adjustable support arm, comprising a mounting base, wherein the mounting base is provided with a mounting mechanism for the lifting device, the mounting mechanism comprising:
[0006] The locking assembly includes a slide groove on the upper surface of the mounting base, a support column connected by a threaded assembly inside the slide groove, a slide block connected by a lifting assembly inside the support column, locking blocks connected by telescopic assemblies on both sides of the slide block, and slots that engage with the locking blocks evenly on the side wall of the support column.
[0007] The adjustment assembly includes a mounting base fixed to one side wall of the slide, a support shaft rotatably connected inside the mounting base, a support arm fixed to the outer wall of the support shaft, positioning slide rails fixed to both side walls of the support arm, a sliding plate slidably connected inside the positioning slide rail, a support plate fixed to the top of the sliding plate, and a rubber plate fixed to the upper surface of the support plate.
[0008] Preferably, the threaded assembly includes a bidirectional lead screw rotatably connected inside the slide groove, and the support column is slidably connected to the inner wall of the slide groove. The support column is configured in two sets, and the two sets of support columns are threadedly connected to the bidirectional lead screw.
[0009] Preferably, the lifting assembly includes a hydraulic rod fixed inside the support column, and the slide is fixedly connected to the telescopic end of the hydraulic rod.
[0010] Preferably, the telescopic assembly includes a fixed plate fixed to the side wall of the slide block, four sets of guide rods fixed to the inner wall of the fixed plate, a locking block slidably connected to the outer wall of the guide rods, a first electric push rod fixed at the center of the inner wall of the fixed plate, the telescopic end of the first electric push rod being fixedly connected to the locking block, a spring being provided on the outer side of the first electric push rod, the two ends of the spring being fixedly connected to the locking block and the fixed plate respectively, and an inclined surface being provided on the upper end face of the locking block.
[0011] Preferably, a locking plate is fixed to the upper outer wall of the support shaft, threaded holes are evenly distributed on the upper surface of the mounting base, and bolts are provided inside the locking plate to connect with the threaded holes.
[0012] Preferably, a connecting plate is fixed at the center of the lower end face of the support plate, a second electric push rod is fixed at the lower end of the support arm, a push block is fixed at the lower end of the second electric push rod, and movable rods are provided on both sides of the push block through a rotating shaft. The ends of the movable rods are rotatably connected to the connecting plate through a rotating shaft.
[0013] Beneficial effects
[0014] This invention provides a lifting device with an adjustable support arm. Compared with the prior art, it has the following advantages:
[0015] Firstly, this utility model uses a bidirectional lead screw to drive two sets of support columns to open and close synchronously. The support spacing can be adjusted according to the width of the object being lifted, improving the versatility of the device. The locking block and the slot are connected by a simple and reliable structure, which can effectively prevent the slide from sliding down due to gravity or other external forces during the lifting process, ensuring the safety of the lifting operation. The spring setting enhances the stability and reliability of the locking and unlocking process.
[0016] Secondly, the support shaft of this utility model drives the support arm to rotate. Combined with the fixing of bolts and threaded holes, the angle of the support arm can be flexibly adjusted, so that the lifting device can adapt to the needs of different vehicle models and different lifting positions, thus improving the applicability of the device. The second electric push rod, push block, movable rod, etc. work together to drive the slide plate to slide in the positioning slide rail, which can adjust the extension length of the support plate and expand the lifting range. The rubber plate can increase the friction with the object being lifted, prevent slippage, and at the same time avoid scratching the surface of the object. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the slide structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the locking block structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the mounting base structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the positioning slide rail structure of this utility model.
[0022] In the diagram: 1. Mounting base; 2. Slide groove; 201. Two-way lead screw; 202. Support column; 203. Hydraulic rod; 204. Slide seat; 3. Slot; 301. Fixing plate; 302. Guide rod; 303. Locking block; 304. Inclined surface; 305. First electric push rod; 306. Spring; 4. Mounting seat; 401. Support shaft; 402. Support arm; 403. Threaded hole; 404. Locking plate; 405. Bolt; 5. Positioning slide rail; 501. Slide plate; 502. Support plate; 503. Connecting plate; 504. Second electric push rod; 505. Push block; 506. Movable rod; 6. Rubber plate. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-5 This utility model provides a technical solution: a lifting device with an adjustable support arm, including a mounting base 1, on which a mounting mechanism for the lifting device is provided, the mounting mechanism including:
[0025] The locking assembly includes a slide groove 2 opened on the upper surface of the mounting base 1. A support column 202 connected by a threaded assembly is provided inside the slide groove 2. A slide seat 204 connected by a lifting assembly is provided inside the support column 202. Locking blocks 303 connected by telescopic assemblies are provided on both sides of the slide seat 204. The side wall of the support column 202 is evenly provided with slots 3 that engage with the locking blocks 303.
[0026] The adjustment assembly includes a mounting base 4 fixed to one side wall of a slide 204, a support shaft 401 rotatably connected inside the mounting base 4, a support arm 402 fixed to the outer wall of the support shaft 401, positioning slide rails 5 fixed to both side walls of the support arm 402, a sliding plate 501 slidably connected inside the positioning slide rails 5, a support plate 502 fixed to the top of the sliding plate 501, and a rubber plate 6 fixed to the upper surface of the support plate 502.
[0027] In a preferred embodiment, the threaded assembly includes a bidirectional lead screw 201 rotatably connected inside the slide groove 2, and support columns 202 slidably connected to the inner wall of the slide groove 2. The support columns 202 are configured in two sets, and the two sets of support columns 202 are threadedly connected to the bidirectional lead screw 201. When the bidirectional lead screw 201 is rotated, since the two sets of support columns 202 are threadedly connected to the bidirectional lead screw 201 and slide inside the slide groove 2, the rotation of the bidirectional lead screw 201 will cause the two sets of support columns 202 to move towards or away from each other along the slide groove 2, thereby adjusting the distance between the two sets of support columns 202. The support distance can be adjusted according to the width of the object being lifted, improving the versatility of the device.
[0028] In a preferred embodiment, the lifting assembly includes a hydraulic rod 203 fixed inside the support column 202, and a slide 204 fixedly connected to the telescopic end of the hydraulic rod 203. When the hydraulic rod 203 is activated, the hydraulic rod 203 telescopically moves the slide 204 up and down inside the support column 202, thereby adjusting the height of the slide 204. This allows for flexible adjustment of the lifting height to meet different lifting requirements.
[0029] In a preferred embodiment, the telescopic assembly includes a fixed plate 301 fixed to the side wall of the slide 204. Four sets of guide rods 302 are fixed to the inner wall of the fixed plate 301. A locking block 303 is slidably connected to the outer wall of the guide rods 302. A first electric push rod 305 is fixed at the center of the inner wall of the fixed plate 301. The telescopic end of the first electric push rod 305 is fixedly connected to the locking block 303. A spring 306 is provided on the outer side of the first electric push rod 305, with both ends of the spring 306 respectively connected to the locking block 303. Block 303 and fixing plate 301 are fixedly connected. The upper end surface of locking block 303 is provided with inclined surface 304. When slide 204 moves to a suitable height, the first electric push rod 305 is activated. The telescopic end of the first electric push rod 305 pushes the locking block 303 to slide along the guide rod 302, so that the locking block 303 is inserted into the corresponding slot 3 on the side wall of the support column 202, thereby locking and fixing slide 204. Spring 306 plays a role in buffering and assisting in reset during the telescopic process of the first electric push rod 305.
[0030] The inclined surface 304 on the upper end of the locking block 303 helps to reduce collision and wear with the slot 3 when the slide 204 rises.
[0031] In a preferred embodiment, a locking plate 404 is fixed to the upper outer wall of the support shaft 401, and threaded holes 403 are evenly distributed on the upper surface of the mounting base 4. Bolts 405 are provided inside the locking plate 404 to connect with the threaded holes 403. In the adjustment assembly, the support shaft 401 inside the mounting base 4 rotates, which drives the support arm 402 fixed to its outer wall to rotate. After rotating to a suitable angle, it is connected and fixed to the threaded holes 403 on the upper surface of the mounting base 4 through the bolts 405 inside the locking plate 404.
[0032] In a preferred embodiment, a connecting plate 503 is fixed at the center of the lower end face of the support plate 502, a second electric push rod 504 is fixed at the lower end of the support arm 402, a push block 505 is fixed at the lower end of the second electric push rod 504, and movable rods 506 are provided on both sides of the push block 505 via a rotating shaft. The ends of the movable rods 506 are rotatably connected to the connecting plate 503 via a rotating shaft. The slide plate 501 can slide within the positioning slide rails 5 on both sides of the support arm 402. The second electric push rod 504 fixed at the lower end of the support arm 402 extends and retracts, driving the push block 505 to move. The push block 505 drives the connecting plate 503 and the support plate 502 to move via the movable rods 506, so that the slide plate 501 slides within the positioning slide rails 5. The rubber plate 6 on the upper end face of the support plate 502 contacts the object being lifted.
[0033] The aforementioned bidirectional lead screw uses a stepper motor of model 42BYGH.
[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0035] During operation, first rotate the bidirectional screw 201 inside the slide groove 2. Since the two sets of support columns 202 are threadedly connected to the bidirectional screw 201 and slide in the slide groove 2, the rotation of the bidirectional screw 201 will cause the two sets of support columns 202 to move towards or away from each other along the slide groove 2, thereby adjusting the distance between the two sets of support columns 202.
[0036] Next, the hydraulic rod 203 fixed inside the support column 202 is activated. The extension and retraction of the hydraulic rod 203 drives the slide 204 fixed at its extension end to move up and down inside the support column 202, thereby adjusting the height of the slide 204. When the slide 204 moves to the appropriate height, the first electric push rod 305 at the center of the inner wall of the side wall fixing plate 301 of the slide 204 is activated. The extension and retraction end of the first electric push rod 305 pushes the locking block 303 to slide along the four sets of guide rods 302 fixed on the inner wall of the fixing plate 301, so that the locking block 303 is engaged in the corresponding slot 3 on the side wall of the support column 202, thereby locking and fixing the slide 204. The spring 306 on the outside of the first electric push rod 305 plays a role in buffering and assisting in resetting during its extension and retraction. The inclined surface 304 on the upper end of the locking block 303 helps to reduce the collision and wear with the slot 3 when the slide 204 rises.
[0037] When the adjustment component is working, the support shaft 401 inside the mounting base 4 rotates, causing the support arm 402 fixed on its outer wall to rotate. After rotating to a suitable angle, the bolt 405 inside the locking plate 404 fixed on the upper outer wall of the support shaft 401 is connected and fixed to the threaded holes 403 evenly distributed on the upper end face of the mounting base 4. At the same time, the slide plate 501 in the positioning slide rail 5 on both sides of the support arm 402 can slide. The second electric push rod 504 fixed at the lower end of the support arm 402 extends and retracts, causing the push block 505 to move. The push block 505 drives the connecting plate 503 at the center of the lower end face of the support plate 502 and the support plate 502 to move through the movable rods 506 on both sides, so that the slide plate 501 slides in the positioning slide rail 5, and finally the rubber plate 6 on the upper end face of the support plate 502 contacts the object being lifted.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lifting device with an adjustable support arm, comprising a mounting base (1), characterized in that: The mounting base (1) is provided with a mounting mechanism for the lifting device, the mounting mechanism including: The locking assembly includes a slide groove (2) on the upper surface of the mounting base (1), a support column (202) connected by a threaded assembly is provided inside the slide groove (2), a slide seat (204) connected by a lifting assembly is provided inside the support column (202), locking blocks (303) connected by telescopic assemblies are provided on both sides of the slide seat (204), and slots (3) that engage with the locking blocks (303) are evenly provided on the side wall of the support column (202). The adjustment assembly includes a mounting base (4) fixed to one side wall of a slide (204), a support shaft (401) rotatably connected inside the mounting base (4), a support arm (402) fixed to the outer wall of the support shaft (401), positioning slide rails (5) fixed to both side walls of the support arm (402), a sliding plate (501) slidably connected inside the positioning slide rails (5), a support plate (502) fixed to the top of the sliding plate (501), and a rubber plate (6) fixed to the upper surface of the support plate (502).
2. A lifting device with an adjustable support arm according to claim 1, characterized in that: The threaded assembly includes a bidirectional lead screw (201) rotatably connected inside the slide groove (2), and a support column (202) is slidably connected to the inner wall of the slide groove (2). The support column (202) is configured in two sets, and the two sets of support columns (202) are threadedly connected to the bidirectional lead screw (201).
3. A lifting device with an adjustable support arm according to claim 1, characterized in that: The lifting assembly includes a hydraulic rod (203) fixed inside the support column (202), and the slide (204) is fixedly connected to the telescopic end of the hydraulic rod (203).
4. A lifting device with an adjustable support arm according to claim 1, characterized in that: The telescopic assembly includes a fixed plate (301) fixed to the side wall of the slide (204). Four sets of guide rods (302) are fixed to the inner wall of the fixed plate (301). The locking block (303) is slidably connected to the outer wall of the guide rods (302). A first electric push rod (305) is fixed at the center of the inner wall of the fixed plate (301). The telescopic end of the first electric push rod (305) is fixedly connected to the locking block (303). A spring (306) is provided on the outer side of the first electric push rod (305). The two ends of the spring (306) are fixedly connected to the locking block (303) and the fixed plate (301) respectively. An inclined surface (304) is provided on the upper end surface of the locking block (303).
5. A lifting device with an adjustable support arm according to claim 1, characterized in that: A locking plate (404) is fixed to the upper outer wall of the support shaft (401), and threaded holes (403) are evenly distributed on the upper surface of the mounting base (4). Bolts (405) are provided inside the locking plate (404) to connect with the threaded holes (403).
6. A lifting device with an adjustable support arm according to claim 1, characterized in that: A connecting plate (503) is fixed at the center of the lower end face of the support plate (502). A second electric push rod (504) is fixed at the lower end of the support arm (402). A push block (505) is fixed at the lower end of the second electric push rod (504). Movable rods (506) are provided on both sides of the push block (505) and are rotatably connected by a rotating shaft. The end of the movable rod (506) is rotatably connected to the connecting plate (503) by a rotating shaft.