Invisible damping device of electric power-assisted bicycle
By adopting multiple shock absorption design and lubrication system in the invisible shock absorption device of electric power-assisted bicycles, the problems of limited shock absorption effect and rust of the frame in the existing technology are solved, and better shock absorption effect and longer service life.
Patent Information
- Application Number
- CN202421381112.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-02-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing electric power-assisted bicycle invisible shock absorption device has limited shock absorption effect, and it is impossible to directly absorb the handlebar position, resulting in vibration transmission to the handlebar and still causing a large impact on the arm, and the inside of the frame is prone to rust, which reduces the Shock absorption effect.
It adopts a multiple shock absorption design, including Spring 1, Spring 2 and Spring 3, which absorbs the frame at different heights respectively, and sets Spring 3 and elastic shock absorption blocks at the handlebar position to directly absorb the handlebar. In addition, lubricating chutes and lubricating holes are designed to facilitate the addition of lubricating oil to prevent rust.
It achieves better shock absorption effect, significantly reduces the vibration of the handlebar, improves riding comfort, and prevents rust from the frame through the use of lubricant, maintaining good shock absorption effect.
Smart Images
Figure CN222474352U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric power-assisted bicycle accessories, in particular to an invisible shock-absorbing device for an electric power-assisted bicycle. Background Art
[0002] The invisible shock-absorbing device of an electric power-assisted bicycle usually refers to a shock-absorbing system installed in the frame or front fork of the electric power-assisted bicycle. It is designed to reduce the vibration and discomfort caused by uneven or bumpy roads when riding, improve riding comfort and stability, and reduce the impact on the rider's body, making the riding experience more pleasant and safer.
[0003] Existing invisible shock-absorbing devices for electric power-assisted bicycles mostly use spring shock-absorbing devices. The spring is embedded in the front fork of the frame to absorb the vibration transmitted upward from the tire during the movement of the frame, so as to reduce the vibration at the handlebar and relieve the discomfort of the arm. However, the shock-absorbing effect of a single spring is limited and it cannot directly reduce the vibration at the handlebar position. The vibration transmitted to the handlebar will still cause a large impact on the arm. In addition, the interior of the frame is prone to rust after working for a long time, which will greatly reduce the shock-absorbing effect and even cause the shock-absorbing device to fail, affecting riding. Utility Model Content
[0004] In order to solve the above problems, the utility model provides an invisible shock absorbing device for an electric power-assisted bicycle which has multiple shock absorption, good shock absorption effect and convenient adding of lubricating oil to prevent rust.
[0005] In order to solve the above technical problems, the technical solution proposed by the utility model is as follows: an invisible shock absorbing device for an electric power-assisted bicycle, comprising a frame tube, a frame rod and a handlebar, wherein the frame tube is connected to the front fork of the electric power-assisted bicycle, the lower end of the frame rod is slidably arranged in the frame tube, the frame rod is a hollow rod, a guide slide bar matching the frame rod is connected to the center of the frame tube, a baffle is integrally formed at the lower end of the frame rod, a spring 1 and a spring 2 are respectively sleeved at the lower ends of the frame rod and the guide slide bar, and the handlebar is arranged in the frame rod. The upper end of the bicycle part is arranged and passes through the frame rod, the frame rod is provided with a movable hole matching the handlebar, the inner wall of the movable hole is connected with an elastic shock-absorbing block, the lower middle part of the handlebar is connected with a movable rod, the frame rod is connected with a limiting plate matching the movable rod, the movable rod slides through the limiting plate and is connected with a fixing plate, the lower end of the movable rod is sleeved with a spring three, the frame tube and the inner side wall of the frame rod are provided with a lubrication groove, the frame tube and the side wall of the frame rod are provided with a lubrication hole above the lubrication groove, and a sealing plug is connected in the lubrication hole.
[0006] Furthermore, the elastic shock absorbing block is arranged around the side wall of the handlebar and is connected to the side wall of the handlebar.
[0007] Furthermore, the upper and lower ends of the spring one are respectively connected to the upper wall of the frame tube and the baffle plate, the upper and lower ends of the spring two are respectively connected to the baffle plate and the lower wall of the frame tube, and the upper and lower ends of the spring three are respectively connected to the limit plate and the fixing plate.
[0008] Furthermore, the lubrication grooves are multiple and evenly distributed vertically on the inner side walls of the frame tube and the frame rod.
[0009] Furthermore, the sealing plug has a T-shaped vertical cross-section.
[0010] Compared with the prior art, the utility model has the following advantages:
[0011] Multiple shock absorption, good shock absorption effect: Spring one, spring two and spring three can respectively absorb shock to the frame at different heights, with multiple shock absorption effects, which can effectively reduce the vibration of the handlebar. Spring three is set close to the handlebar, which can effectively absorb shock to the handlebar. At the same time, the elastic shock-absorbing pad can directly absorb shock to the handlebar, which is beneficial to increase riding comfort.
[0012] Convenient to add lubricating oil to prevent rust: The setting of lubrication holes makes it convenient to add lubricating oil to the frame tube and frame rod to prevent frame rust from affecting the shock absorption effect. The setting of lubrication grooves makes it convenient for lubricating oil to slide along the inner wall of the frame tube and frame rod, which is conducive to full utilization of lubricating oil. At the same time, it can also store part of the lubricating oil to increase the durability of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 It is the front view of the utility model;
[0015] Figure 3 It is an enlarged view of part A of the utility model.
[0016] As shown in the figure: 1. frame tube; 2. frame rod; 3. handlebar; 4. guide slide rod; 5. baffle; 6. spring one; 7. spring two; 8. elastic shock-absorbing block; 9. movable rod; 10. limit plate; 11. fixed plate; 12. spring three; 13. lubrication groove; 14. sealing plug. DETAILED DESCRIPTION
[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0018] Combined with Figure 1 , Attachment Figure 2, an invisible shock-absorbing device for an electric power-assisted bicycle comprises a frame tube 1, a frame rod 2 and a handlebar 3. The frame tube 1 is connected to the front fork of the electric power-assisted bicycle, the lower end of the frame rod 2 is slidably arranged in the frame tube 1, the frame rod 2 is a hollow rod, the inner center of the frame tube 1 is connected with a guide slide bar 4 matching the frame rod 2, the lower end of the frame rod 2 is integrally formed with a baffle 5, the frame rod 2 and the lower ends of the guide slide bar 4 are respectively sleeved with a spring 1 6 and a spring 2 7, the handlebar 3 is arranged at the upper end of the frame rod 2 and passes through the frame rod 2, the frame rod 2 is provided with an active hole matching the handlebar 3, the inner wall of the active hole is connected with an elastic shock-absorbing block 8, the elastic shock-absorbing block 8 is arranged around the side wall of the handlebar 3 and is connected to the side wall of the handlebar 3, which can not only ensure the stability of the handlebar 3, but also achieve effective shock absorption of the handlebar 3.
[0019] Combined with Figure 1 A movable rod 9 is connected to the lower middle part of the handlebar 3, a limiting plate 10 matching the movable rod 9 is connected inside the frame rod 2, the movable rod 9 slides through the limiting plate 10 and is connected with a fixing plate 11, a spring three 12 is sleeved at the lower end of the movable rod 9, the upper and lower ends of the spring one 6 are respectively connected to the upper wall of the frame tube 1 and the baffle 5, the upper and lower ends of the spring two 7 are respectively connected to the baffle 5 and the lower wall of the frame tube 1, the upper and lower ends of the spring three 12 are respectively connected to the limiting plate 10 and the fixing plate 11, which can increase the stability of the spring one 6, the spring two 7 and the spring three 12 to ensure their effective shock absorption.
[0020] Combined with Figure 1 , Attachment Figure 3 The inner walls of the frame tube 1 and the frame rod 2 are provided with lubrication grooves 13. The lubrication grooves 13 are provided in a plurality and are evenly vertically distributed on the inner walls of the frame tube 1 and the frame rod 2, so as to ensure the uniformity of the lubricating oil.
[0021] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 A lubrication hole is provided on the side wall of the frame tube 1 and the frame rod 2 above the lubrication groove 13, and a sealing plug 14 is connected in the lubrication hole. The sealing plug 14 has a T-shaped vertical section, which is convenient for disassembly and installation.
[0022] Specific implementation mode of the utility model: During the driving of the electric power-assisted automatic vehicle, the vibration generated by the tire will be transmitted to the frame tube 1 through the front fork, and the frame rod 2 will vibrate with the frame tube 1. During the process, the spring 1 6 and the spring 2 7 will cooperate to expand and contract and absorb part of the vibration, and the other part of the vibration will be transmitted upward to the handlebar 3. The spring 3 12 will automatically expand and contract to directly reduce the shock of the handlebar 3. At the same time, the elastic shock-absorbing block 8 can not only ensure the connection stability between the handlebar 3 and the frame rod 2, but also have a certain shock-absorbing effect. During the use of the electric power-assisted bicycle, the sealing plug 14 can be opened at intervals, and a proper amount of lubricating oil can be added to the frame tube 1 and the frame rod 2 through the lubrication hole. The lubricating oil falls to the inner walls of the frame tube 1 and the frame rod 2 and is partially stored in the lubrication groove 13, which can effectively prevent the frame tube 1 and the frame rod 2 from rusting and reduce their internal friction, thereby ensuring a good shock-absorbing effect.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. An invisible shock absorbing device for an electric power-assisted bicycle, comprising a frame tube (1), a frame rod (2) and a handlebar (3), characterized in that: The frame tube (1) is connected to the front fork of the electric power-assisted bicycle, the lower end of the frame rod (2) is slidably arranged in the frame tube (1), the frame rod (2) is a hollow rod, the inner center of the frame tube (1) is connected with a guide slide rod (4) matching the frame rod (2), the lower end of the frame rod (2) is integrally formed with a baffle (5), the lower ends of the frame rod (2) and the guide slide rod (4) are respectively sleeved with a spring 1 (6) and a spring 2 (7), the handlebar (3) is arranged at the upper end of the frame rod (2) and penetrates the frame rod (2), the frame rod (2) is provided with a movable hole matching the handlebar (3), An elastic damping block (8) is connected to the inner wall of the movable hole, a movable rod (9) is connected to the lower middle part of the handlebar (3), a limiting plate (10) matching the movable rod (9) is connected to the inside of the frame rod (2), the movable rod (9) slides through the limiting plate (10) and is connected to a fixing plate (11), a spring three (12) is sleeved at the lower end of the movable rod (9), a lubrication groove (13) is provided on the inner side wall of the frame tube (1) and the frame rod (2), a lubrication hole is provided on the side wall of the frame tube (1) and the frame rod (2) above the lubrication groove (13), and a sealing plug (14) is connected to the lubrication hole.
2. The invisible shock absorbing device for an electric power-assisted bicycle according to claim 1, characterized in that: The elastic shock absorbing block (8) is arranged around the side wall of the handlebar (3) and is connected to the side wall of the handlebar (3).
3. The invisible shock absorbing device for an electric power-assisted bicycle according to claim 1, characterized in that: The upper and lower ends of the spring one (6) are respectively connected to the upper wall of the frame tube (1) and the baffle (5), the upper and lower ends of the spring two (7) are respectively connected to the baffle (5) and the lower wall of the frame tube (1), and the upper and lower ends of the spring three (12) are respectively connected to the limit plate (10) and the fixing plate (11).
4. The invisible shock absorbing device for an electric power-assisted bicycle according to claim 1, characterized in that: The lubrication grooves (13) are multiple and evenly distributed vertically on the inner side walls of the frame tube (1) and the frame rod (2).
5. The invisible shock absorbing device for an electric power-assisted bicycle according to claim 1, characterized in that: The sealing plug (14) has a T-shaped vertical section.