Pedal self-locking anti-following-rotation assembly of electric bicycle

Abstract

The utility model provides a pedal self-locking follow-up rotation preventing assembly of an electric bicycle. The pedal self-locking follow-up rotation preventing assembly aims at solving the problem of pedal follow-up rotation of a traditional electric bicycle in an electric driving state. The bicycle mainly comprises a middle shaft, pedals, a limiting hole located in the middle shaft and a following rotation preventing assembly on a bicycle frame body. A limiting hole is formed in any position of a center shaft connected with pedals, a follow-up rotation preventing assembly (a steel ball spring buckle) is arranged at the corresponding position of a bicycle frame body, a steel ball abuts against the interior of the limiting hole through a spring, in the non-riding state, the spring releases the elastic force of the spring, and the steel ball is locked in the limiting hole so that the center shaft can be prevented from rotating; in a riding state, the pedals are treaded manually to drive the middle shaft to rotate, and when the circumferential stress of the middle shaft exceeds the elastic force of the spring, the steel ball retreats and slides out of the limiting hole, so that forward and reverse rotation of the middle shaft is realized; compared with a traditional electric bicycle pedal design, the electric bicycle pedal can not only keep the riding function of an original bicycle, but also lock the pedal to prevent following rotation in a non-riding state.

Description

Technical Field

[0001] The utility model relates to the technical field of electric bicycle pedals, in particular to a self-locking anti-heel-turn assembly of an electric bicycle pedal. Background Art

[0002] Pedals are one of the rigid requirements of the new national standard for electric bicycles. The latest national standard stipulates that electric bicycles must have the basic functions and characteristics of bicycles, including pedals and chain transmission devices, and be able to be ridden normally when the electric power assist is turned off or fails.

[0003] However, in the actual structure of electric bicycles, the pedals will keep turning due to the tight chain or increased friction of the flywheel. This phenomenon makes the rider very inconvenient and creates certain safety hazards during electric driving. The solution to this defect is mostly for consumers to remove the pedals privately, causing damage to the original structure of the electric bicycle and loss of riding function. Therefore, from the perspective of consumer safety, while retaining the riding function of the original pedals, solving the problem of pedal turning under electric driving has become a technical pain point for electric bicycle manufacturers. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned prior art, the present application provides an electric bicycle pedal self-locking anti-heel-turn assembly, which can not only retain the riding function of the original bicycle pedal, but also lock the pedal to prevent heel-turn when not riding.

[0005] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0006] A self-locking anti-heel-rotation assembly for pedals of an electric bicycle comprises a central axis and pedals connected to both ends of the central axis, a limiting hole is provided on the shaft body at either end of the central axis, a group of anti-heel-rotation components are installed on the frame body opposite to the limiting hole, the anti-heel-rotation components are embedded in the limiting hole when the pedals are not in use, and are disengaged from the limiting hole when the pedals are in use.

[0007] Furthermore, the anti-heeling assembly includes a plunger sleeve fixed inside the frame body, a spring is connected inside the plunger sleeve, and a steel ball is pressed against the end of the spring.

[0008] Furthermore, the limiting hole is a circular hole opened on the shaft body at one end of the central shaft.

[0009] Furthermore, each pedal is connected to one end of the central axis through a crank.

[0010] The beneficial effects of the utility model are as follows:

[0011] Compared with the prior art, the electric bicycle pedal self-locking anti-heel-turn assembly provided by the utility model is provided with a limit hole at any point on the central axis connected to the pedal, and an anti-heel-turn component (steel ball spring buckle) is arranged at the corresponding position of the frame body, and the steel ball is pressed against the limit hole by the spring; when not in riding state, the spring releases its elastic force, and the steel ball is locked in the limit hole to prevent the central axis from rotating; when in riding state, human power steps on the pedal to drive the central axis to rotate. At this time, when the circumferential force of the central axis exceeds the elastic force of the spring, the steel ball slides back out of the limit hole to realize the forward and reverse rotation of the central axis. Therefore, compared with the traditional electric bicycle pedal design, the utility model can not only retain the riding function of the original vehicle, but also lock the pedal to prevent heel-turn when not in riding state. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the limiting hole in the utility model;

[0014] Figure 3 It is a cross-sectional schematic diagram of the anti-following rotation component in the utility model.

[0015] Among them: 1. middle shaft; 2. pedal; 3. limit hole; 4. anti-rotation assembly; 41. plunger sleeve; 42. spring; 43. steel ball; 5. flywheel; 6. crank. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] The utility model provides a self-locking anti-heel-turn assembly for an electric bicycle pedal, aiming to solve the problem of heel-turn of the pedals of a traditional electric bicycle in an electric driving state.

[0018] like Figures 1 to 3 As shown, the utility model includes a central axis 1 and pedals 2 connected to both ends of the central axis 1, a limiting hole 3 is opened on the shaft body at either end of the central axis 1, and a group of anti-heel rotation components 4 are installed on the frame body opposite to the limiting hole 3 of the pedal 2. The anti-heel rotation components 4 are embedded in the limiting hole 3 when the pedal 2 is not in use, and are disengaged from the limiting hole 3 when the pedal 2 is in use.

[0019] In one embodiment of the present invention, the anti-rotation assembly 4 includes a plunger sleeve 41 fixed inside the frame body, a spring 42 is connected inside the plunger sleeve 41, and a steel ball 43 is pressed against the end of the spring 42.

[0020] In an embodiment of the present invention, the limiting hole 3 is a circular hole opened on the shaft body at one end of the central shaft 1 .

[0021] In one embodiment of the present invention, each pedal 2 is connected to one end of the central axis 1 via a crank 6 .

[0022] The specific structure and working principle of the utility model:

[0023] The utility model is composed of a flywheel 5 of an original electric bicycle, a middle shaft 1 connected to the flywheel 5, and pedals 2 connected to both ends of the middle shaft 1 through cranks 6. In order to solve the problem of the pedals 2 following the rotation of the traditional electric bicycle in an electric drive state, the utility model is based on the above structure, a circular limiting hole 3 is opened on the shaft body at any end of the middle shaft 1, and a group of anti-rotation components 4 are fixed inside the frame body, and the specific axial position thereof is not limited. It is ensured that the coaxiality of the two is consistent so that they can cooperate to achieve the anti-rotation function.

[0024] Working principle: When not riding, the spring 42 releases its elastic force, and the steel ball 43 is locked in the limit hole 3 to prevent the middle shaft 1 from rotating; when riding, the pedal 2 is stepped on by human power to drive the middle shaft 1 to rotate. At this time, when the circumferential force of the middle shaft 1 exceeds the elastic force of the spring 42, the steel ball 43 slides back and out of the limit hole 3 to realize the forward and reverse rotation of the middle shaft 1.

[0025] In summary, compared with the traditional design of the pedal 2 of an electric bicycle, the utility model can not only retain the riding function of the original bicycle, but also lock the pedal 2 to prevent heel rotation when not riding.

[0026] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A self-locking anti-heel-turn assembly for an electric bicycle pedal, characterized in that: The invention comprises a central axis (1) and pedals (2) connected to both ends of the central axis (1); a limiting hole (3) is formed on the shaft body at either end of the central axis (1); a group of anti-heel rotation components (4) are installed on the frame body opposite to the limiting hole (3); the anti-heel rotation components (4) are embedded in the limiting hole (3) when the pedals (2) are not in use, and are separated from the limiting hole (3) when the pedals (2) are in use.

2. The self-locking anti-heel-turn assembly for electric bicycle pedals according to claim 1, characterized in that: The anti-rotation assembly (4) comprises a plunger sleeve (41) fixed inside the frame body, a spring (42) is connected inside the plunger sleeve (41), and a steel ball (43) is pressed against the end of the spring (42).

3. The self-locking anti-heel-turn assembly for electric bicycle pedals according to claim 1, characterized in that: The limiting hole (3) is a circular hole formed on the shaft body at one end of the central shaft (1).

4. The self-locking anti-heel-turn assembly for electric bicycle pedals according to claim 1, characterized in that: Each pedal (2) is connected to one end of the central axis (1) via a crank (6).

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