阅读说明：本技术 一种自行车脚踏装置 (Pedal device for bicycle ) 是由 王相军 于 2019-09-21 设计创作，主要内容包括：本发明涉及一种自行车脚踏装置,包括左右曲柄,连杆,脚踏板,连杆的一端与曲柄铰接,所述连杆的另一端与脚踏板直接固接,取消了连杆与脚踏板铰接的相关部件,在结构得以简化的同时,获得了一较大的连杆前摆角,同样的脚踏力在曲柄上所获得的驱动扭矩得到大幅提升,驱动效率得以显著提高。(The invention relates to a bicycle pedal device, which comprises a left crank, a right crank, a connecting rod and a pedal, wherein one end of the connecting rod is hinged with the cranks, the other end of the connecting rod is directly and fixedly connected with the pedal, related parts of the connecting rod hinged with the pedal are eliminated, a larger connecting rod forward swing angle is obtained while the structure is simplified, the driving torque obtained by the same pedal force on the cranks is greatly improved, and the driving efficiency is obviously improved.)

1. A bicycle pedal device comprises a left crank, a right crank, a connecting rod and a pedal, wherein one end of the connecting rod is hinged with the crank, and the bicycle pedal device is characterized in that the other end of the connecting rod is fixedly connected with the pedal.

2. The bicycle pedal device of claim 1, wherein the other end of the link is fixedly coupled to the pedal plate at an angle greater than 90 degrees.

3. The bicycle pedal device according to claim 1 or 2, wherein the connecting rod is provided at one end thereof with a bearing, and an inner race of the bearing is fitted with a bolt fitted into a crank screw hole.

Technical Field

The invention relates to the technical field of manual bicycles, in particular to a bicycle pedal device.

Background

The phase difference of left and right cranks of the existing bicycle is 180 degrees, when the foot pedal of one side runs to the lowest position, the foot pedal of the other side is at the highest position and is at a force application dead point, the torque formed by the same pedal force in the small area range of the highest position is small, the driving efficiency is low, in order to increase the torque, a connecting rod pedal device with two articulated shafts is provided, one end of a connecting rod is articulated with the crank, the other end of the connecting rod is articulated with the foot pedal, when the foot pedal runs to the highest position, the foot applies downward pressure and forward swinging force at the same time, so that the connecting rod obtains a forward swinging angle of about 5 degrees, and the torque increased on the crank is very limited.

Disclosure of Invention

The invention aims to provide a bicycle pedal device, which adopts a connecting rod and pedal fixedly connected structure to ensure that the connecting rod obtains a forward swing angle which is far larger than 5 degrees.

The technical scheme adopted by the invention for solving the technical problems is as follows: a bicycle pedal device comprises a left crank, a right crank, a connecting rod and a pedal, wherein one end of the connecting rod is hinged with the crank, and the other end of the connecting rod is fixedly connected with the pedal or is of an integral structure.

Furthermore, the angle of the other end of the connecting rod fixedly connected with the pedal is larger than 90 degrees.

Furthermore, one end of the connecting rod is provided with a bearing, and the inner ring of the bearing is sleeved with a bolt matched with the crank screw hole.

The invention has the advantages of

Compared with the prior art, the pedal is directly and fixedly connected with the connecting rod, a related hinge component is omitted, the structure is simplified, a connecting rod forward swing angle far larger than 5 degrees is obtained, the driving torque obtained by the same pedal force on the crank is greatly improved, and the driving efficiency is obviously improved.

Drawings

FIG. 1 is a schematic view of the right footrest structure viewed from the rear to the front in accordance with the present invention.

FIG. 2 is a schematic view of the right footrest structure as viewed from the right to the left in accordance with the present invention.

In the figure:

1-right connecting rod, 2-right pedal, 3-upper plane of right pedal, 4-lower plane of right pedal, axis of hinge shaft of 5-right connecting rod and crank, a-angle formed by right connecting rod and upper plane of right pedal, 6-bearing, 7-bolt, 8-washer, 9-snap spring

Detailed Description

as shown in fig. 1 and 2, a bearing 6 is arranged in one end of the right connecting rod 1, a bolt 7 is sleeved on an inner ring of the bearing 6, the bolt 7 is screwed into a screw hole of a right crank (not shown), the other end of the right connecting rod 1 is fixedly connected with the right pedal 2 or is in an integral structure, and an angle formed by the upper plane 3 of the right pedal and the right connecting rod 1 is 135 degrees.

Due to self-weight, when a foot is not placed on the right pedal 2, the right pedal device naturally sags, the upper plane 3 of the pedal forms an angle of about 45 degrees with the ground, when the foot is placed on the right pedal 2, the upper plane 3 of the pedal rotates anticlockwise to be in a horizontal state, and at the moment, the forward swing angle of the right connecting rod 1 is about 45 degrees. When the bicycle is ridden, if the right pedal 2 is near the highest position, the sole is bent upwards as much as possible so as to be beneficial to obtaining the maximum forward swing angle of the connecting rod, and the sole is gradually bent downwards along with the rotation of the crank so as to reduce the forward swing angle of the connecting rod and obtain the optimal driving torque.

The above description is only for the purpose of illustrating the embodiments of the present invention and is not to be construed as limiting the invention, and any modifications and equivalents thereof, which are within the spirit and scope of the present invention, are included in the present invention.