A stable maintenance support device
By designing a stable maintenance support device, and using a servo electric cylinder to drive the swing arm to adjust the spacing of the support rollers to form a trapezoidal support space, the problem of inconvenient individual handling of the wheel of the electric bicycle is solved, and stable support and convenient maintenance of the front and rear wheels are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG HAIMU ELECTRIC TECH CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-29
AI Technical Summary
In the existing technology, the wheel inspection device of the electric bicycle can only handle one wheel at a time, and it is laborious and inconvenient to load the rear wheel.
A stable maintenance support device was designed, including a support base, first and second roller brackets, a swing arm, support rollers, and a servo electric cylinder. The servo electric cylinder drives the swing arm to adjust the spacing of the support rollers, forming a trapezoidal support space to stably support the front and rear wheels of the electric bicycle.
It enables simultaneous support for both the front and rear wheels of the electric bicycle, improving maintenance convenience and stability, avoiding the laborious problem of dealing with a single wheel, and making operation more convenient and faster.
Smart Images

Figure CN224295667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of maintenance equipment technology, specifically a stable maintenance support device. Background Technology
[0002] There are two main types of electric bicycles: fuel-powered electric bicycles and electric bicycles. Electric bicycles consist of a frame, front wheel, rear wheel, bottom bracket and engine located at the bottom of the frame. After a period of use, the front and rear wheels of an electric bicycle need to be inspected to ensure the safety of the electric bicycle in subsequent use.
[0003] Patent (CN115591836B) discloses a wheel cleaning device. The wheel cleaning device includes: a movable frame; a movable groove, which is formed inside the movable frame, with guide grooves on both sides of the inner wall of the movable groove, and a mounting rod movably connected to the inside of the guide groove via a rotating shaft; and a limiting plate, which is rotatably connected to a groove at the bottom of the inner wall of the movable groove. The wheel cleaning device provided by this invention moves along the guide groove via the mounting rod, and drives the limiting plate to rotate via a transmission belt. The rotating limiting plate stops the wheel, while a motor drives a brush roller to rotate, and in conjunction with sprayed water, the exterior of the wheel is cleaned by rolling. This eliminates the need for manual cleaning, as the wheel is automatically cleaned and moved to a designated position, greatly improving the convenience and efficiency of wheel cleaning and maintenance.
[0004] The wheel inspection device in the aforementioned patent can only be mounted on one wheel of the electric bicycle. In other words, only one wheel of the electric bicycle can be inspected and repaired at a time. Furthermore, due to the design requirements of the electric bicycle itself, the weight of the electric bicycle is mainly concentrated near the rear wheel. When it is necessary to mount the rear wheel, it is more laborious and inconvenient to operate. Utility Model Content
[0005] The purpose of this invention is to provide a stable maintenance support device to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a stable maintenance support device, including a support base, on both sides of the top of the support base are symmetrically provided with a first roller bracket and a second roller bracket that are movably connected. The first roller bracket and the second roller bracket each include two sets of rotatably connected swing arms. A support roller is rotatably connected between the two swing arms in each set. A first servo electric cylinder is rotatably connected to the end of two adjacent swing arms away from the support roller. The two ends of the first servo electric cylinder are respectively rotatably connected to the two swing arms. The support roller extends to the top of the support base.
[0007] Furthermore, a guide assembly is provided on one side of the outer wall of the first servo cylinder. The guide assembly includes a first guide rail and a second guide rail. A first slider is movably matched on the outer wall of the first guide rail, and a second slider is movably matched on the outer wall of the second guide rail. The first slider and the second slider are fixedly connected. The first guide rail and the second guide rail are perpendicular to each other. The first guide rail is horizontally set and fixedly connected to the outer wall of the first servo cylinder.
[0008] Furthermore, the top of the support base is provided with a first mounting groove that matches the first roller bracket, and the top of the support base is provided with a second mounting groove that matches the second roller bracket.
[0009] Furthermore, the center of the outer wall of the swing arm in the first roller bracket is rotatably connected to the inner wall of the first mounting groove, and the second guide rail in the first roller bracket is fixedly connected to the inner wall of the first mounting groove.
[0010] Furthermore, the inner wall of the second mounting groove is provided with a slidingly connected support frame, the center of the outer wall of the swing arm in the second roller bracket is rotatably connected to the inner wall of the support frame, and the second guide rail in the second roller bracket is fixedly connected to the inner wall of the support frame.
[0011] Furthermore, the inner wall of the second mounting groove is symmetrically provided with third guide rails on both sides, the outer wall of the support frame is provided with a third slider that matches the third guide rails, and one end of the outer wall of the support frame is provided with a second servo electric cylinder, which is fixedly connected to the inner wall of the second mounting groove.
[0012] Furthermore, the bottom of the support base is provided with several casters, each caster is equipped with a braking assembly, and a hinged support pedal is provided on one side of the outer wall of the support base.
[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0014] 1. This utility model, by setting up a support base, a first roller bracket, a second roller bracket, a swing arm, support rollers, and a first servo cylinder, allows the first and second roller brackets to simultaneously support the front and rear wheels of the electric bicycle, effectively improving the convenience of wheel maintenance. The swing arm in the first and second roller brackets provides swing support to the support rollers. The extension and retraction of the first servo cylinder drives one end of the two symmetrically arranged swing arms to swing, allowing the two swing arms to adjust the swing of the two support rollers, thereby adjusting the distance between the two support rollers and facilitating stable support for wheels of different outer diameters. A trapezoidal support space is formed between the two support rollers and the swing arm. The bottom sides of the wheel's outer wall are located at the top of the two support rollers, while the center of the wheel's bottom is suspended. The bottom sides of the wheel's outer wall are supported by the top frame of the trapezoidal support space, and the center of the wheel's bottom is located inside the trapezoidal support space, providing more stable support for the wheel and effectively improving the stability of the wheel during subsequent maintenance. The operation is convenient and quick.
[0015] 2. In this utility model, the guide assembly provides limiting and guiding support for the first servo cylinder, thereby limiting the movement position of the first servo cylinder, ensuring that the two sets of swing arms maintain synchronous and symmetrical swing adjustment, and further ensuring the support space of the isosceles trapezoidal structure formed by the two support rollers and the swing arms, further ensuring the support stability of the wheel and preventing the support rollers from swinging arbitrarily; during the extension and retraction adjustment of the first servo cylinder, the first guide rail moves horizontally along the first slider, and the first slider moves up and down along the second guide rail with the second slider, so that the first servo cylinder moves up and down in a horizontal state during the extension and retraction adjustment, thereby ensuring that the first servo cylinder can normally drive the swing arm to swing. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[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 structure of the first roller bracket of this utility model;
[0019] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;
[0020] Figure 4 This is a schematic diagram of the structure of the second roller bracket of this utility model;
[0021] Figure 5This is a structural schematic diagram of another state of the present invention;
[0022] In the diagram: 1. Support base; 101. First mounting slot; 102. Second mounting slot; 103. Support frame; 104. Third guide rail; 105. Third slider; 106. Second servo cylinder; 107. Caster wheel; 108. Support pedal; 2. First roller bracket; 3. Second roller bracket; 4. Support roller; 5. Swing arm; 6. First servo cylinder; 7. Guide assembly; 701. First guide rail; 702. Second guide rail; 703. First slider; 704. Second slider. 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 1-5This utility model provides a technical solution: a stable maintenance support device, including a support base 1. The support base 1 has a first roller bracket 2 and a second roller bracket 3 symmetrically connected on both sides of its top. Each of the first roller bracket 2 and the second roller bracket 3 includes two sets of rotatably connected swing arms 5. A support roller 4 is rotatably connected between the two swing arms 5 in each set. A first servo cylinder 6 is rotatably connected to the end of one of the adjacent two swing arms 5 away from the support roller 4. The two ends of the first servo cylinder 6 are rotatably connected to the two swing arms 5 respectively. The support roller 4 extends above the support base 1. A guide assembly 7 is provided on one side of the outer wall of the first servo cylinder 6. The guide assembly 7 includes a first guide rail 701 and a second guide rail 702. A first slider 703 is movably matched to the outer wall of the first guide rail 701, and a second slider 704 is movably matched to the outer wall of the second guide rail 702. The first slider 703 and the second slider 704 are fixedly connected. The first guide rail 701 and the second guide rail 702 are perpendicular to each other. The first guide rail 701 is horizontally positioned. The first guide rail 701 is fixedly connected to the outer wall of the first servo cylinder 6; the top of the support base 1 is provided with a first mounting groove 101 that matches the first roller bracket 2, and the top of the support base 1 is provided with a second mounting groove 102 that matches the second roller bracket 3; the center of the outer wall of the swing arm 5 in the first roller bracket 2 is rotatably connected to the inner wall of the first mounting groove 101, and the second guide rail 702 in the first roller bracket 2 is fixedly connected to the inner wall of the first mounting groove 101; the inner wall of the second mounting groove 102 is provided with a slidingly connected support. The frame 103 has a swing arm 5 in the second roller bracket 3 whose outer wall center is rotatably connected to the inner wall of the support frame 103. The second guide rail 702 in the second roller bracket 3 is fixedly connected to the inner wall of the support frame 103. The inner wall of the second mounting groove 102 is symmetrically provided with third guide rails 104 on both sides. The outer wall of the support frame 103 is provided with a third slider 105 that matches the third guide rail 104. The outer wall of the support frame 103 is provided with a second servo electric cylinder 106 at one end. The second servo electric cylinder 106 is fixedly connected to the inner wall of the second mounting groove 102.
[0025] In one embodiment, such as Figure 4 As shown, several casters 107 are provided at the bottom of the support base 1, and the casters 107 are equipped with braking components. The casters 107 can move and support the bottom of the support base 1, making the support base 1 more convenient and quick to move. The electric bicycle on the top of the support base 1 can also be moved and adjusted, making the operation convenient and quick. In addition, a hinged support pedal 108 is provided on one side of the outer wall of the support base 1. The hinged support pedal 108 can be folded and unfolded. When folded, the support pedal 108 is folded above the support base 1. When unfolded, the support pedal 108 unfolds and forms an inclined plane with the ground support on the top of the support base 1, making it easy to push the electric bicycle to the top of the support base 1, making the operation convenient and quick.
[0026] The working principle of this utility model:
[0027] Refer to the instruction manual appendix Figures 1-5 This utility model comprises a support base 1, a first roller bracket 2, a second roller bracket 3, a swing arm 5, a support roller 4, and a first servo cylinder 6. The support base 1 supports the first roller bracket 2 and the second roller bracket 3, and also supports the electric bicycle. The first roller bracket 2 and the second roller bracket 3 can simultaneously support the front and rear wheels of the electric bicycle, which can effectively improve the convenience of wheel maintenance. In the first roller bracket 2 and the second roller bracket 3, the swing arm 5 provides swing support for the support roller 4. The extension and retraction of the first servo cylinder 6 can drive one end of the two symmetrically arranged swing arms 5 to swing, so that the two sets of swing arms 5 can swing and adjust the two support rollers 4, thereby adjusting the distance between the two support rollers 4, which is convenient for stable support of wheels with different outer diameters.
[0028] When in use, push the electric bicycle to be repaired to the top of the support base 1. The wheels of the electric bicycle will move along the top of the support base 1. The front and rear wheels of the electric bicycle can be pushed to the top of the first roller bracket 2 and the second roller bracket 3 respectively. Then, open the support legs or support frame of the electric bicycle. The support legs or support frame will contact the bottom of the support base 1 for support, so that the main body of the electric bicycle is fixed on the top of the support base 1. No additional clamping parts are needed to clamp and fix the electric bicycle.
[0029] The two support rollers 4 and the swing arm 5 form a trapezoidal support space. The bottom sides of the outer wall of the wheel are located on the top of the two support rollers 4 respectively, and the bottom center of the wheel is suspended in the air. The bottom sides of the outer wall of the wheel are supported by the top frame of the trapezoidal support space, and the bottom center of the wheel is located inside the trapezoidal support space, which makes the support of the wheel more stable and can effectively improve the stability of the wheel in subsequent maintenance processes. The operation is convenient and quick. The swing arm 5 provides rotational support for the support rollers 4, so that the wheel located on top of the support rollers 4 can be rotated and adjusted normally, which makes it easier to rotate and inspect the wheel of the electric bicycle, making the maintenance of the wheel of the electric bicycle more convenient.
[0030] During the extension and retraction adjustment of the first servo cylinder 6, the guide component 7 provides limiting guidance support for the first servo cylinder 6 and limits the movement position of the first servo cylinder 6, thereby ensuring that the two sets of swing arms 5 maintain synchronous and symmetrical swing adjustment, and further ensuring that the two support rollers 4 and the swing arms 5 form an isosceles trapezoidal support space, further ensuring the support stability of the wheel and preventing the support rollers 4 from swinging randomly.
[0031] The first guide rail 701 in the guide assembly 7 supports the outer wall of the first servo cylinder 6. When the first servo cylinder 6 is extended or retracted, the first guide rail 701 moves horizontally along the first slider 703, which can effectively ensure that the first servo cylinder 6 is always in a horizontal state during the extension and retraction process, thereby ensuring that the ends of the two sets of swing arms 4 are on the same horizontal plane, thus ensuring that the support roller 4 and the swing arm 5 form an isosceles trapezoidal support space. During the extension and retraction adjustment of the first servo cylinder 6, the first guide rail 701 moves horizontally along the first slider 703, and the first slider 703 moves up and down along the second guide rail 702 with the second slider 704, so that the first servo cylinder 6 moves up and down in a horizontal state during the extension and retraction adjustment process, thereby ensuring that the first servo cylinder 6 can normally drive the swing arm 5 to swing.
[0032] The first mounting slot 101 provides mounting space for the first roller bracket 2, and the second mounting slot 102 provides mounting space for the second roller bracket 3. The support frame 103 provides movable support for the second roller bracket 3. The extension and retraction of the second servo electric cylinder 106 can drive the support frame 103 to move horizontally, thereby driving the second roller bracket 3 to move horizontally as a whole, thus adjusting the distance between the first roller bracket 2 and the second roller bracket 3. This can effectively adapt to electric bicycles with different front and rear wheel distances, and can effectively improve the applicability of this device.
[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 stable maintenance support device, comprising a support base (1), characterized in that: The support base (1) is symmetrically provided with a first roller bracket (2) and a second roller bracket (3) on both sides of the top. The first roller bracket (2) and the second roller bracket (3) each include two sets of rotatably connected swing arms (5). A support roller (4) is rotatably connected between the two swing arms (5) in each set. A first servo cylinder (6) is rotatably connected to one end of the two adjacent swing arms (5) away from the support roller (4). The two ends of the first servo cylinder (6) are rotatably connected to the two swing arms (5) respectively. The support roller (4) extends to the top of the support base (1).
2. The stable maintenance support device according to claim 1, characterized in that: A guide assembly (7) is provided on one side of the outer wall of the first servo electric cylinder (6). The guide assembly (7) includes a first guide rail (701) and a second guide rail (702). A first slider (703) is movably matched on the outer wall of the first guide rail (701), and a second slider (704) is movably matched on the outer wall of the second guide rail (702). The first slider (703) and the second slider (704) are fixedly connected. The first guide rail (701) and the second guide rail (702) are perpendicular to each other. The first guide rail (701) is horizontally set and is fixedly connected to the outer wall of the first servo electric cylinder (6).
3. The stable maintenance support device according to claim 2, characterized in that: The top of the support base (1) is provided with a first mounting groove (101) that matches the first roller bracket (2), and the top of the support base (1) is provided with a second mounting groove (102) that matches the second roller bracket (3).
4. The stable maintenance support device according to claim 3, characterized in that: The center of the outer wall of the swing arm (5) in the first roller bracket (2) is rotatably connected to the inner wall of the first mounting groove (101), and the second guide rail (702) in the first roller bracket (2) is fixedly connected to the inner wall of the first mounting groove (101).
5. A stable maintenance support device according to claim 3, characterized in that: The inner wall of the second mounting groove (102) is provided with a sliding support frame (103), the center of the outer wall of the swing arm (5) in the second roller bracket (3) is rotatably connected to the inner wall of the support frame (103), and the second guide rail (702) in the second roller bracket (3) is fixedly connected to the inner wall of the support frame (103).
6. A stable maintenance support device according to claim 5, characterized in that: The inner wall of the second mounting groove (102) is symmetrically provided with third guide rails (104) on both sides. The outer wall of the support frame (103) is provided with a third slider (105) that matches the third guide rails (104). One end of the outer wall of the support frame (103) is provided with a second servo electric cylinder (106). The second servo electric cylinder (106) is fixedly connected to the inner wall of the second mounting groove (102).
7. A stable maintenance support device according to claim 1, characterized in that: The bottom of the support base (1) is provided with several casters (107), the casters (107) are provided with braking components, and a hinged support pedal (108) is provided on one side of the outer wall of the support base (1).