Swing bottom fork of electric tricycle
By installing a buffer mechanism and spring connector between the tricycle's U-shaped frame and the fixed seat, the problem of swaying during bumps and cornering is solved, achieving higher driving stability and safety, and extending the service life of key components.
Patent Information
- Application Number
- CN202520548029.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Existing tricycles are prone to swaying from side to side on bumpy roads and when turning, which increases the risk of tipping over. Furthermore, existing shock absorption devices cannot effectively mitigate the swaying, leading to wear or breakage of the U-shaped frame, which affects driving safety and stability.
Design an electric tricycle swing fork. By setting a buffer mechanism and a rotatable connection between the U-shaped frame and the fixed seat, combined with spring connectors and buffer springs, the U-shaped frame can swing left and right and move up and down, thereby enhancing vehicle stability. The center of gravity is also adjusted to improve cornering stability.
It effectively reduces the swaying of tricycles when bumping and turning, improves driving stability, extends the service life of the U-shaped frame, reduces the risk of rollover, and enhances driving safety and comfort.
Smart Images
Figure CN223778498U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric tricycle accessory technical field, concretely is a kind of electric tricycle swing flat fork. BACKGROUND
[0002] Flat fork, it is an important component of tricycle frame part, mainly connects rear wheel and provides the function of moving up and down. It is similar to a U-shaped device, and the movable part of the fixed rear wheel.
[0003] When tricycle meets bumpy road in driving process, tricycle is easy to sway left and right, and there is the risk of rollover, and when passing bend, vehicle is also easy to rollover due to inertia. The tricycle of present stage is generally equipped with damping mechanism, and the damping device is generally installed on rear fork, but the whole rear fork is integrally made, and can only move up and down, which can eliminate the bump of high and low road to a certain extent, but cannot eliminate the sway left and right.
[0004] Therefore, a swing flat fork gradually appears in recent years, a fixed seat that can rotate left and right is arranged on the U-shaped frame, and it is connected with the frame, so that the vehicle can be balanced when encountering left and right sway.
[0005] But in the process of using, the fixed seat and the U-shaped frame are easy to collide, which makes the U-shaped frame be impacted for a long time, easy to wear, and even broken, once the rear fork of tricycle is broken, it will directly affect the driving safety and stability of vehicle, make vehicle unstable in driving process, increase the risk of accident.
[0006] Therefore, we propose to design a kind of electric tricycle swing flat fork. CONTENT OF THE UTILITY MODEL
[0007] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.
[0008] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:
[0009] A kind of electric tricycle swing flat fork, including U-shaped frame, the U-shaped frame both ends are fixedly connected with rear wheel frame connecting piece, the spring connecting piece is fixedly connected on the top of the rear wheel frame connecting piece, the installation pipe is embeddedly fixedly connected in the middle of the U-shaped frame, the fixed seat is rotatably connected on the top of the installation pipe, the frame connecting piece is fixedly connected to the front end of the fixed seat, and the buffer mechanism is arranged between the fixed seat and the U-shaped frame.
[0010] The buffer mechanism includes an arc-shaped tube fixedly connected to the center of the bottom of the fixed base. Both ends of the arc-shaped tube are slidably connected to limiting rods fixedly connected to the top of the U-shaped frame. A center plate is fixedly connected to the center of the arc-shaped tube. A buffer spring is fixedly connected between the limiting rods and the center plate.
[0011] As a preferred embodiment of the electric tricycle swing fork described in this utility model, a rotating shaft is embedded and fixedly connected at the center of the mounting tube, and brackets are fixedly connected to both sides of the fixed seat. The end of the rotating shaft is fixedly connected to the inner ring of a bearing, and the outer ring of a bearing is embedded and fixedly connected inside the bracket. The rotating shaft and the bracket are connected by a bearing. When the user turns the tricycle, the user changes his / her center of gravity, causing the frame and frame connecting parts to rotate on the top of the U-shaped frame, thereby shifting the center of gravity of the tricycle, which helps to improve the driving stability of the tricycle and makes it less likely to tip over.
[0012] In a preferred embodiment of the electric tricycle swing fork described in this utility model, the rear wheel frame connector is fixed to the rear wheel frame of the tricycle by bolts, which facilitates the connection and fixation of the device to the rear wheel frame of the tricycle.
[0013] As a preferred embodiment of the electric tricycle swing fork described in this utility model, the spring connector is connected to the tricycle frame through a shock-absorbing spring. When the tricycle encounters bumps, the U-shaped frame can sway up and down or left and right under the action of the shock-absorbing spring, while the driver and the frame connected to the fixed seat can remain stable and level, which can improve the driver's driving experience.
[0014] As a preferred embodiment of the electric tricycle swing fork described in this utility model, the frame connector is fixedly connected to the tricycle frame, which facilitates the connection of the swing fork assembly to the main body of the tricycle frame.
[0015] As a preferred embodiment of the electric tricycle swing fork described in this utility model, a fixing ring is fixedly connected to the bottom end of the limiting rod, and a rubber pad is fixedly connected to the top of the fixing ring. When the arc-shaped tube swings and slides to the end of the limiting rod, it can impact the rubber pad, preventing damage to the U-shaped frame structure over time.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This utility model utilizes the cooperation between the fixed seat, frame connector, buffer mechanism, and U-shaped frame. By movably connecting the U-shaped frame and the fixed seat, both can swing independently. Furthermore, an arc-shaped tube between them is provided to buffer the impact force, making the tricycle more stable when turning and reducing the impact on the U-shaped frame during use. This improves the service life of the components and thus enhances the driving safety of the tricycle. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0019] Fig. 1 This is a perspective view of a swing fork for an electric tricycle according to the present invention.
[0020] Fig. 2 This is a schematic diagram of the structure of a swing fork for an electric tricycle according to the present invention;
[0021] Fig. 3 This is a schematic diagram of the buffer mechanism of the swing fork of an electric tricycle according to the present invention.
[0022] Legend: 1. U-shaped frame; 2. Rear wheel frame connector; 3. Spring connector; 4. Mounting tube; 401. Rotary shaft; 5. Fixed seat; 501. Bracket; 6. Frame connector; 7. Buffer mechanism; 701. Arc-shaped tube; 702. Limiting rod; 703. Center plate; 704. Buffer spring; 8. Fixing ring; 9. Rubber pad. Detailed Implementation
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0026] Please see Figs. 1-3This utility model provides an electric tricycle swing fork, including a U-shaped frame 1, with rear wheel frame connectors 2 fixedly connected to both ends of the U-shaped frame 1. The rear wheel frame connectors 2 are fixed to the rear wheel frame of the tricycle by bolts, which facilitates the connection and fixation of the device to the rear wheel frame of the tricycle.
[0027] The top of the rear wheel frame connector 2 is fixedly connected to a spring connector 3. The middle of the U-shaped frame 1 is embedded and fixedly connected to a mounting tube 4. The top of the mounting tube 4 is rotatably connected to a fixing seat 5. The front end of the fixing seat 5 is fixedly connected to a frame connector 6.
[0028] Among them, the spring connector 3 is connected to the tricycle frame through the shock-absorbing spring. When the tricycle encounters bumps, the U-shaped frame 1 can sway up and down or left and right under the action of the shock-absorbing spring, while the frame connected to the driver and the fixed seat 5 can remain stable and level, which can improve the driver's driving experience.
[0029] The frame connector 6 is fixedly connected to the tricycle frame, facilitating the connection of the flat fork assembly to the main body of the tricycle frame.
[0030] In this embodiment, a rotating shaft 401 is embedded and fixedly connected at the center of the mounting tube 4, and brackets 501 are fixedly connected to both sides of the fixing seat 5. The end of the rotating shaft 401 is fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is embedded and fixedly connected inside the bracket 501. The rotating shaft 401 and the bracket 501 are connected by a bearing. When the user turns the tricycle, the user changes his / her center of gravity, which drives the frame and the frame connecting parts 6 to rotate on the top of the U-shaped frame 1, thereby shifting the center of gravity of the tricycle, which helps to improve the driving stability of the tricycle and makes it less likely to overturn.
[0031] A buffer mechanism 7 is provided between the fixed base 5 and the U-shaped frame 1.
[0032] The buffer mechanism 7 includes an arc-shaped tube 701 fixedly connected to the center of the bottom of the fixed base 5. Both ends of the arc-shaped tube 701 are slidably connected to a limiting rod 702 fixedly connected to the top of the U-shaped frame 1. A center plate 703 is fixedly connected to the center of the arc-shaped tube 701. A buffer spring 704 is fixedly connected between the limiting rod 702 and the center plate 703.
[0033] In this embodiment, a fixing ring 8 is fixedly connected to the bottom end of the limiting rod 702, and a rubber pad 9 is fixedly connected to the top of the fixing ring 8. When the arc tube 701 swings and slides to the end of the limiting rod 702, it can hit the rubber pad 9 to prevent damage to the U-shaped frame 1 structure over time.
[0034] When turning, the user adjusts their center of gravity towards the inside of the curve, causing the frame and mounting base 5 to tilt towards the inside of the curve. This shifts the center of gravity of the vehicle and the user towards the inside of the curve, thereby improving the tricycle's stability when turning and making it less prone to tipping over.
[0035] When encountering bumpy roads, the rear wheel of the tricycle swings left and right and up and down as it passes over potholes, causing the U-shaped frame 1 to swing. Through the action of the tricycle's own shock-absorbing springs and the relative rotation between the U-shaped frame 1 and the fixed seat 5, the user maintains a stable center of gravity while the U-shaped frame 1 is rotating, and the fixed seat 5 remains stable, thereby enhancing the driver's driving experience.
[0036] During this period, when the fixed seat 5 swings to one side, it will compress the buffer spring 704 until the limit rod 702 slides to the middle of the arc tube 701. At this time, the end of the arc tube 701 contacts the rubber pad 9 to buffer the impact force and effectively prevent the fixed seat 5 from directly contacting the U-shaped frame 1. This prevents the U-shaped frame 1 from being damaged by direct impact for a long time and extends the service life of related accessories.
[0037] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A swing fork for an electric tricycle, comprising a U-shaped frame (1), characterized in that, Both ends of the U-shaped frame (1) are fixedly connected to rear wheel frame connectors (2), the top of the rear wheel frame connectors (2) is fixedly connected to a spring connector (3), the middle of the U-shaped frame (1) is embedded and fixedly connected to an installation tube (4), the top of the installation tube (4) is rotatably connected to a fixed seat (5), the front end of the fixed seat (5) is fixedly connected to a frame connector (6), and a buffer mechanism (7) is provided between the fixed seat (5) and the U-shaped frame (1). The buffer mechanism (7) includes an arc-shaped tube (701) fixedly connected to the center of the bottom of the fixed base (5). Both ends of the arc-shaped tube (701) are slidably connected to a limiting rod (702) fixedly connected to the top of the U-shaped frame (1). A center plate (703) is fixedly connected to the center of the arc-shaped tube (701). A buffer spring (704) is fixedly connected between the limiting rod (702) and the center plate (703).
2. The electric tricycle swing fork according to claim 1, characterized in that, A rotating shaft (401) is embedded and fixedly connected at the center of the mounting tube (4). A bracket (501) is fixedly connected to both sides of the fixing seat (5). The end of the rotating shaft (401) is fixedly connected to the inner ring of the bearing. The outer ring of the bearing is embedded and fixedly connected inside the bracket (501). The rotating shaft (401) and the bracket (501) are connected by a bearing.
3. The electric tricycle swing fork according to claim 1, characterized in that, The rear wheel frame connector (2) is fixed to the rear wheel frame of the tricycle by bolts.
4. The electric tricycle swing fork according to claim 1, characterized in that, The spring connector (3) is connected to the tricycle frame via a shock-absorbing spring.
5. The electric tricycle swing fork according to claim 1, characterized in that, The frame connector (6) is fixedly connected to the tricycle frame.
6. The electric tricycle swing fork according to claim 1, characterized in that, The bottom end of the limiting rod (702) is fixedly connected to a fixing ring (8), and the top of the fixing ring (8) is fixedly connected to a rubber pad (9).