Mud guard follow-up type rear wheel folding structure
By adopting a fender follow-up rear wheel folding structure in scooters, mopeds, two-wheeled electric vehicles or electric bicycles, the fenders are synchronized on the upper side of the rear wheels by using the follow-up device, the intermediate gears of the prior art are solved. The problem of mud plates being easily damaged in folded states has enabled effective protection of fenders in different states.
Patent Information
- Application Number
- CN202411691063.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-02-07
AI Technical Summary
In the rear wheel design of existing scooters, mopeds, two-wheeled electric vehicles or electric bicycles, the fenders are prone to contact the ground facing downward in the folded state, resulting in damage.
The fender follow-up rear wheel folding structure is adopted, and the fender is always moved simultaneously on the upper side of the rear wheel through the follow-up device to avoid the problem of the fender facing downward in the folded state.
Whether the vehicle is in an unfolded state, folded state or intermediate state, the fender is always on the upper side of the rear wheels, avoiding the problem of fender damage in the folded state.
Smart Images
Figure CN119389345A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of scooters, power-assisted vehicles, two-wheeled electric vehicles or electric bicycles. Background Art
[0002] When there is a mudguard on the upper part of the rear wheel of a scooter, power-assisted bicycle, two-wheeled electric vehicle or electric bicycle, if the rear wheel is designed to be able to fold forward 180°, since the mudguard generally needs to move synchronously with the rear wheel, the mudguard will change from facing upward to facing downward. Once the rear wheel mudguard in the folded state faces downward, the mudguard will directly contact the ground and bear the weight of the entire vehicle body, thereby causing damage to the mudguard. Summary of the invention
[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a fender follower type rear wheel folding structure, in which the fender is always on the upper side of the rear wheel under the transmission of the follower device, avoiding the problem of the fender facing downward in the "folded state".
[0004] Technical solution: To achieve the above-mentioned purpose, a fender follower type rear wheel folding structure of the present invention includes a vehicle body, a rear fork arm, a rear wheel, a fender and a follower device; one end of the rear fork arm is connected to the rear part of the vehicle body through a hinge; the rear wheel rotates at the other end of the rear fork arm; the fender is on the upper side of the rear wheel; when the rear wheel and the fender follower fork arm rotate around the hinge, the follower device will be linked, so that the follower device drives the fender to rotate around the axis of the rear wheel.
[0005] Furthermore, it includes an "unfolded state" and a "folded state"; in the "unfolded state", the rear wheels are on the rear side of the hinge; in the "folded state", the rear wheels are on the front side of the hinge.
[0006] Furthermore, based on the "unfolded state", the rear wheel and the subsequent fork arm rotate around the hinge until the rear wheel reaches the front side of the hinge and enters the "folded state".
[0007] Furthermore, no matter it is in the "expanded state", the "folded state" or an intermediate state between the "expanded state" and the "folded state", the fender is always on the upper side of the rear wheel under the transmission of the follower device.
[0008] Furthermore, a transverse rear wheel axle is fixedly mounted on the rear end of the rear fork arm, and the rear wheel is rotatably mounted on the rear wheel axle coaxially.
[0009] Furthermore, there is a receiving groove on the front side of the rear part of the vehicle body; in the "folded state", the rear wheels and fenders are in the receiving groove.
[0010] Furthermore, the follower device includes a transmission wheel and b transmission wheel, the a transmission wheel rotates coaxially on the rear wheel axle, and the b transmission wheel is fixed on the rear part of the vehicle body; the a transmission wheel and the b transmission wheel are connected by a transmission belt or a transmission chain; the fender is synchronously fixedly connected to the a transmission wheel through a synchronization arm.
[0011] Furthermore, the hinge includes an articulated seat fixed to the front end of the rear fork arm and a hinge shaft fixed to the rear end of the vehicle body; the b transmission wheel is coaxial with the hinge shaft.
[0012] Furthermore, the transmission wheel a and the transmission wheel b are synchronous wheels with the same outer diameter.
[0013] Furthermore, in the "expanded state", the rear fork arm contacts the upper portion of one end of the rear portion of the vehicle body and is connected via a locking structure.
[0014] Beneficial effect: For the scooter, power-assisted vehicle, two-wheeled electric vehicle or electric bicycle of the present invention, no matter it is in the "unfolded state", "folded state" or an intermediate state between the "unfolded state" and the "folded state", the fender is always on the upper side of the rear wheel under the transmission of the follower device, thus avoiding the problem of the fender facing downward in the "folded state". BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of the process of changing from "expanded state" to "folded state";
[0016] Figure 2 The schematic diagram of the structure after the rear wheel is hidden for this structure;
[0017] Figure 3 for Figure 2 Schematic diagram from another perspective. DETAILED DESCRIPTION
[0018] The present invention will be further described below in conjunction with the accompanying drawings.
[0019] As attached Figures 1 to 3 The mudguard follower type rear wheel folding structure shown in the figure comprises a vehicle body 16, a rear fork arm 7, a rear wheel 15, a mudguard 1 and a follower device; one end of the rear fork arm 7 is connected to the rear part 13 of the vehicle body 16 through a hinge 41; the rear wheel 15 rotates on the other end of the rear fork arm 7; the mudguard 1 is on the upper side of the rear wheel 15; when the rear wheel 15 and the mudguard 1 and the fork arm 7 rotate around the hinge 41, the follower device will be linked, so that the follower device drives the mudguard 1 to rotate around the axis of the rear wheel 15.
[0020] like Figure 1 As shown, the present structure includes an “expanded state” and a “folded state”; in the “expanded state”, the rear wheel 15 is at the rear side of the hinge 41 ; in the “folded state”, the rear wheel 15 is at the front side of the hinge 41 .
[0021] On the basis of the “unfolded state”, the rear wheel 15 and the subsequent fork arm 7 rotate around the hinge 41 until the rear wheel 15 reaches the front side of the hinge 41 and enters the “folded state”.
[0022] like Figure 1 As shown, no matter it is in the "expanded state", "folded state" or an intermediate state between the "expanded state" and the "folded state", the fender 1 is always on the upper side of the rear wheel 15 under the transmission of the follower device.
[0023] A transverse rear wheel axle 5 is fixedly mounted on the rear end 3 of the rear fork arm 7, and a rear wheel 15 is coaxially rotatably mounted on the rear wheel axle 5. A receiving groove 17 is provided on the front side of the rear part 13 of the vehicle body; in the "folded state", the rear wheel 15 and the fender 1 are in the receiving groove 17. The follower device includes an a transmission wheel 9 and a b transmission wheel 12, wherein the a transmission wheel 9 coaxially rotates on the rear wheel axle 5, and the b transmission wheel 12 is fixed on the rear part 13 of the vehicle body; the a transmission wheel 9 and the b transmission wheel 12 are connected by a transmission belt 14 or a transmission chain; the fender 1 is synchronously fixedly connected to the a transmission wheel 9 through a synchronous arm 2. In this case, a connecting ring 4 is integrally provided at the end of the synchronous arm 2 and is sleeved on the outside of the rear wheel axle 5, as shown in FIG. Figure 2 As shown, one side of the connecting ring 4 is coaxially fixedly connected to a transmission wheel 9.
[0024] In the present case, the transmission wheel a 9 and the transmission wheel b 12 are synchronous wheels with the same outer diameter; the transmission belt 14 is a toothed transmission belt; and it also includes a tensioning wheel 10 for tensioning the transmission belt 14, and the tensioning wheel 10 is rotatably mounted on the tensioning wheel seat 6 through a bearing, and the tensioning wheel seat 6 is fixed to the inner side of the rear fork arm 7.
[0025] like Figure 2 As shown, the hinge 41 includes a hinge seat 8 fixed to the front end of the rear fork arm 7 and a hinge shaft 11 fixed to the tail end of the rear part 13 of the vehicle body; b the transmission wheel 12 is coaxial with the hinge shaft 11.
[0026] In order to improve the stability in the "expanded state", in the present case, in the "expanded state", the rear fork arm 7 and the rear part 13 of the vehicle body are in contact with each other at the upper part close to one end, and are connected by a conventional lock or snap structure.
[0027] Working principle:
[0028] like Figure 1 The figure above shows the "expanded state". In the process of folding from the "expanded state" to the "folded state", the rear wheel 15 then the fork arm 7 gradually rotates about 180° counterclockwise around the hinge 41 and enters the state shown in FIG. Figure 1In the "folded state" in the figure below, if the fender 1 is always synchronized with the rear fork arm 7 during the above process, when entering the "folded state", the fender 1 should be just below the rear wheel 15, and the fender 1 will directly touch the ground when facing downward, and the fender 1 will bear the weight of the entire vehicle body, thereby damaging the fender; however, this problem is completely avoided in this solution, as follows:
[0029] In the present case, as the rear wheel 15 and the subsequent fork arm 7 gradually rotate counterclockwise around the hinge 41, since the b transmission wheel 12 is always fixed, the a transmission wheel 9 follows the rear fork arm 7 to rotate counterclockwise around the hinge 41 and will rotate clockwise around its own axis under the constraint of the transmission belt 14. When the a transmission wheel 9 and the b transmission wheel 12 are synchronous wheels with the same outer diameter, it can be seen from the transmission relationship that the speed of the clockwise rotation of the a transmission wheel 9 is always equal to the speed of the counterclockwise rotation of the rear fork arm 7 around the hinge 41; since the fender 1 and the a transmission wheel 9 are synchronized.
[0030] Based on the above analysis, as the rear wheel 15 and the subsequent fork arm 7 gradually rotate counterclockwise around the hinge 41, the fender 1 and the subsequent fork arm 7 rotate counterclockwise around the hinge 41, and at the same time, the fender 1 also rotates clockwise around the axis of the a transmission wheel 9 along with the a transmission wheel 9, and the above two rotational movements cancel each other out, so that the fender 1 is always on the upper side of the rear wheel 15 during the movement; therefore, this structure ensures that no matter the rear wheel is in the "expanded state", "folded state" or an intermediate state between the "expanded state" and the "folded state", the fender 1 is always on the upper side of the rear wheel 15 under the transmission of the follower device, so as to prevent the fender 1 in the folded state from directly contacting the ground and being damaged.
[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A fender follower type rear wheel folding structure, characterized in that: The vehicle comprises a vehicle body (16), a rear fork arm (7), a rear wheel (15), a fender (1) and a follower device; one end of the rear fork arm (7) is connected to the rear part (13) of the vehicle body (16) through a hinge (41); the rear wheel (15) rotates on the other end of the rear fork arm (7); the fender (1) is located on the upper side of the rear wheel (15); when the rear wheel (15) and the fender (1) rotate around the hinge (41) along with the rear fork arm (7), the follower device is linked, so that the follower device drives the fender (1) to rotate around the axis of the rear wheel (15).
2. The fender follower type rear wheel folding structure according to claim 1, characterized in that: It includes an "unfolded state" and a "folded state". In the "unfolded state", the rear wheel (15) is located at the rear side of the hinge (41); in the "folded state", the rear wheel (15) is located at the front side of the hinge (41).
3. The fender follower type rear wheel folding structure according to claim 2, characterized in that: On the basis of the "unfolded state", the rear wheel (15) rotates around the hinge (41) along with the rear fork arm (7) until the rear wheel (15) reaches the front side of the hinge (41), entering the "folded state".
4. The fender follower type rear wheel folding structure according to claim 3, characterized in that: Regardless of whether it is in the "expanded state", the "folded state" or an intermediate state between the "expanded state" and the "folded state", the fender (1) is always on the upper side of the rear wheel (15) under the transmission of the follower device.
5. The fender follower type rear wheel folding structure according to claim 4, characterized in that: A transverse rear wheel axle (5) is fixedly mounted on the rear end of the rear fork arm (7), and a rear wheel (15) is coaxially rotatably mounted on the rear wheel axle (5).
6. The fender follower type rear wheel folding structure according to claim 5, characterized in that: A receiving groove (17) is provided on the front side of the rear part (13) of the vehicle body; in the "folded state", the rear wheel (15) and the fender (1) are in the receiving groove (17).
7. The fender follower type rear wheel folding structure according to claim 5, characterized in that: The follower device comprises an a transmission wheel (9) and a b transmission wheel (12); the a transmission wheel (9) rotates coaxially on a rear wheel shaft (5); the b transmission wheel (12) is fixed on a rear part (13) of a vehicle body; the a transmission wheel (9) and the b transmission wheel (12) are connected by a transmission belt (14) or a transmission chain; and the fender (1) is synchronously and fixedly connected to the a transmission wheel (9) by a synchronous arm (2).
8. The fender follower type rear wheel folding structure according to claim 7, characterized in that: The hinge (41) comprises a hinge seat (8) fixed to the front end of the rear fork arm (7) and a hinge shaft (11) fixed to the tail end of the rear part (13) of the vehicle body; the b transmission wheel (12) is coaxial with the hinge shaft (11).
9. The fender follower type rear wheel folding structure according to claim 7, characterized in that: The a transmission wheel (9) and the b transmission wheel (12) are synchronous wheels with the same outer diameter.
10. The fender follower type rear wheel folding structure according to claim 5, characterized in that: In the "expanded state", the rear fork arm (7) and the rear part of the vehicle body (13) are in contact with each other at the upper part of one end and are connected by a locking structure.