S rear fork type power bicycle frame
By adopting a combined structure of S-shaped rear fork bracket and transverse shock absorber in the S-rear fork frame, the defects in the shock absorption design of traditional bicycles and electric vehicles are solved, achieving better shock absorption effect and vehicle stability, and improving safety.
Patent Information
- Application Number
- CN202421642932.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-07-12
AI Technical Summary
Traditional small bicycles and electric vehicles have defects in shock absorption design, resulting in unstable, severe bumps, large drag and high energy consumption. The installation method of the shock absorber causes the spring rebound force to be pushed upward, increasing safety hazards.
A S-rear fork moped frame is designed, which adopts a combined structure of an S-shaped rear fork bracket and a transverse shock absorber. The shock absorber is installed in front of the rear tire, and the center pipe is connected to the transverse shock absorber to ensure that the force of the shock absorber changes, and the design of the S-shaped rear fork bracket prevents the chain from falling.
It achieves better shock absorption, reduces the bumps and energy consumption of the car, and improves the stability and safety of the car.
Smart Images
Figure CN222713669U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vehicle frames, in particular to an S-type rear fork power-assisted vehicle frame. Background Art
[0002] With the development of society and the congestion of urban traffic, people favor electric-assisted bicycles, which are small and convenient to fold and put into the trunk of the car to solve the last kilometer of the journey. Short-distance riding can also exercise the body. The disadvantages of traditional small bicycles and electric vehicles are: either there is no shock absorption, which is uncomfortable and unsafe, or the shock absorbers are designed to be installed upward. In this way, when the car passes the speed bump and is pressed down to the limit, the spring rebound force is upward, the car is bumpy and unstable, and the resistance is large and the energy consumption is higher and unsafe. The solution of this practical design invention is different from the traditional one. It can subvert the traditional shortcomings, change the force direction of the shock absorber, save energy, and make the car more stable and safer.
[0003] Therefore, it is necessary to provide a new S-rear fork type power-assisted bicycle frame to solve the above technical problems. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes an S-rear fork type power-assisted bicycle frame.
[0005] In order to solve the above technical problems, the utility model provides an S-rear fork type power-assisted bicycle frame, comprising: a head tube, one side of the head tube is fixedly connected to a main beam tube, an end of the main beam tube away from the head tube is installed with a middle tube, a side of the middle tube away from the main beam tube is installed with a shock absorber seat, a side of the shock absorber seat away from the middle tube is installed with a lateral shock absorber, the lower end of the middle tube is fixedly connected to an S-shaped rear fork bracket, a locking shaft sleeve is installed inside the S-shaped rear fork bracket, an end of the S-shaped rear fork bracket close to the head tube is installed with a five-through hole, a support tube is installed inside the five-through hole, the upper end of the support tube is connected to the main beam tube, a seat is installed on the side of the middle tube away from the head tube, a battery box is installed on the upper end of the main beam tube, a self-locking folder is installed inside the main beam tube, and a controller room is installed inside the main beam tube.
[0006] The effects achieved by the above components are: the shock absorber force direction is changed, energy consumption can be saved, and the car is more stable and safer.
[0007] Preferably, the lateral shock absorber is installed in front of the rear tire, and the middle tube is connected to the lateral shock absorber.
[0008] The effect achieved by the above components is: when the car goes over the speed bump, the spring presses down, and the rebound force pushes it forward without bumps.
[0009] Preferably, the S-shaped rear fork bracket is equivalent to two C-shaped opposite shapes.
[0010] The effect achieved by the above components is: when the lower fork is pressed down, the lower fork is pushed forward instead of pushed up. At this time, the chain of the bicycle will shorten. At this time, the other C-shaped is in an open state, which just makes up for the difference and ensures that the axis will be in the center and the chain will not fall off.
[0011] Preferably, the S-shaped rear fork bracket is made of stainless steel.
[0012] Preferably, the battery box is fixedly connected to the main beam tube by welding.
[0013] Compared with the related art, the S-type rear fork power-assisted bicycle frame provided by the utility model has the following beneficial effects:
[0014] The utility model provides an S-shaped rear fork power-assisted bicycle frame. By setting the overall structure, the S-shaped rear fork can truly achieve good shock absorption effect, no chain falling, stable energy saving and safety effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of the structure of the S-type rear fork power-assisted bicycle frame provided by the utility model;
[0016] Figure 2 for Figure 1 A schematic diagram of part of the structure is shown.
[0017] Numbers in the figure: 1. head tube; 2. main beam tube; 3. self-locking folder; 4. controller room; 5. middle tube; 6. lateral shock absorber; 7. shock absorber seat; 8. S-shaped rear fork bracket; 9. locking bushing; 10. bottom hole; 11. support tube; 12. seat; 13. battery box. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0019] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0020] See also Figure 1 to Figure 2The S-rear fork type power-assisted bicycle frame provided by the embodiment of the utility model comprises: the S-rear fork type power-assisted bicycle frame, characterized in that it comprises: a head tube 1, a main beam tube 2 is fixedly connected to one side of the head tube 1, a middle tube 5 is installed at one end of the main beam tube 2 away from the head tube 1, a shock absorber seat 7 is installed at the side of the middle tube 5 away from the main beam tube 2, a lateral shock absorber 6 is installed at the side of the shock absorber seat 7 away from the middle tube 5, an S-shaped rear fork bracket 8 is fixedly connected to the lower end of the middle tube 5, a locking shaft sleeve 9 is installed inside the S-shaped rear fork bracket 8, a five-through hole 10 is installed at one end of the S-shaped rear fork bracket 8 close to the head tube 1, a support tube 11 is installed inside the five-through hole 10, the upper end of the support tube 11 is connected to the main beam tube 2, a seat 12 is installed at the side of the middle tube 5 away from the head tube 1, a battery box 13 is installed at the upper end of the main beam tube 2, a self-locking folder 3 is installed inside the main beam tube 2, and a controller room 4 is installed inside the main beam tube 2. The rear fork of the electric bicycle has changed, and it is an S-shaped rear fork structure. Its shock-absorbing installation method is that the shock absorber is installed in front of the rear tire and connected to the middle tube 5, so that when the car passes the speed bump, the spring is pressed down, and the rebound force is to push forward without bumps. It consumes less energy, is more stable and safer. In addition, the working stroke of the lateral shock absorber 6 does not need to be so long, and the short shock absorber can also have an excellent shock absorption effect. The S-shaped rear fork bracket has another advantage. This S-shaped letter is equivalent to two C-shaped letters in opposite directions. When the lower fork is pressed down, the lower fork is pushed forward instead of pushing up. At this time, the chain of the car will be shortened. At this time, the other C-shaped letter is similar to the open state, which just makes up for the number difference and ensures that the axis will be in the center and can keep the chain from falling off. The lateral shock absorber 6 is installed in front of the rear tire, and the middle tube 5 is connected to the lateral shock absorber 6. When the car passes the speed bump, the spring is pressed down, and the rebound force is to push forward without bumps. The S-shaped rear fork bracket 8 is equivalent to two C-shaped letters in opposite directions. When the lower fork is pressed down, the lower fork is pushed forward instead of pushed up, and the chain of the bicycle will be shortened. At this time, the other C-shaped is in an open state, which just makes up for the difference in numbers and ensures that the axis will be in the center and the chain will not fall off. The S-shaped rear fork bracket 8 is specifically made of stainless steel, and the battery box 13 is fixedly connected to the main beam tube 2 by welding;
[0021] The working principle of the S-shaped rear fork power-assisted bicycle frame provided by the utility model is as follows: the rear fork of the electric bicycle is changed, and it is an S-shaped rear fork structure. Its shock-absorbing installation method is that the shock absorber is installed in front of the rear tire and connected to the middle tube 5, so that when the vehicle passes over the speed bump, the spring is pressed down, and the rebound force pushes forward without bumps. The energy consumption is lower, it is more stable and safer. In addition, the working stroke of the lateral shock absorber 6 does not need to be so long, and the shorter shock absorber can also have an excellent shock-absorbing effect. The S-shaped rear fork bracket has another advantage, and this S-shaped letter is equivalent to two C letters in reverse. When the lower fork is pressed down, the lower fork is pushed forward instead of pushed up. At this time, the chain of the car will shorten. At this time, the other C-shaped is in an open state, which just makes up for the difference in numbers and ensures that the axis will be kept in the center and the chain will not fall off. When the car goes over the speed bump, the spring is pressed down, and the rebound force pushes forward without bumps. When the lower fork is pressed down, the lower fork is pushed forward instead of pushed up. At this time, the chain of the car will shorten. At this time, the other C-shaped is in an open state, which just makes up for the difference in numbers and ensures that the axis will be kept in the center and the chain will not fall off.
[0022] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.
[0023] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. S rear fork type power-assisted bicycle frame, characterized in that: include: A head tube (1), one side of the head tube (1) is fixedly connected to a main beam tube (2), one end of the main beam tube (2) away from the head tube (1) is installed with a middle tube (5), a side of the middle tube (5) away from the main beam tube (2) is installed with a shock absorber seat (7), a side of the shock absorber seat (7) away from the middle tube (5) is installed with a lateral shock absorber (6), the lower end of the middle tube (5) is fixedly connected to an S-shaped rear fork bracket (8), a locking sleeve (9) is installed inside the S-shaped rear fork bracket (8), and the S-shaped rear A five-through hole (10) is installed at one end of the fork bracket (8) close to the head tube (1), a support tube (11) is installed inside the five-through hole (10), the upper end of the support tube (11) is connected to the main beam tube (2), a seat (12) is installed on the side of the middle tube (5) away from the head tube (1), a battery box (13) is installed at the upper end of the main beam tube (2), a self-locking folder (3) is installed inside the main beam tube (2), and a controller room (4) is installed inside the main beam tube (2).
2. The S-type rear fork power-assisted bicycle frame according to claim 1, characterized in that: The lateral shock absorber (6) is installed in front of the rear tire, and the middle tube (5) is connected to the lateral shock absorber (6).
3. The S-type rear fork power-assisted bicycle frame according to claim 1, characterized in that: The S-shaped rear fork bracket (8) is equivalent to two C-shaped parts in reverse.
4. The S-type rear fork power-assisted bicycle frame according to claim 1, characterized in that: The S-shaped rear fork bracket (8) is specifically made of stainless steel.
5. The S-type rear fork power-assisted bicycle frame according to claim 1, characterized in that: The battery box (13) is fixedly connected to the main beam tube (2) by welding.