CN215475586U

CN215475586U - Telescopic pedal crank of bicycle

Info

Publication number: CN215475586U
Application number: CN202121623893.7U
Authority: CN
Inventors: 顾胜利
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-01-11
Anticipated expiration: 2031-07-16

Abstract

The utility model relates to the technical field of bicycles, in particular to a telescopic pedal crutch of a bicycle, which comprises: one end of the rotating fluted disc is fixedly connected with a connecting mechanism; the sliding mechanism is connected with the connecting mechanism in a sliding manner; the driving mechanism is fixedly connected with the sliding mechanism; compare in the unchangeable pedal foot of length and turn, this scalable pedal foot turns can reach laborsaving effect to a certain extent, avoids riding passerby and rides the in-process for a long time and lead to debilitating because overstrain, also can make to ride passerby and ride more convenient laborsaving of in-process, and the distance of riding is longer.

Description

Telescopic pedal crank of bicycle

Technical Field

The utility model relates to the technical field of bicycles, in particular to a telescopic pedal crutch of a bicycle.

Background

The basic parts of 25 accessories of a bicycle, such as a frame, a tire, a pedal, a brake, a chain and the like, are all none. Wherein the frame is the skeleton of the bicycle, and the weight of people and goods that it bore is the biggest. The accessories can be broadly classified into a steering system, a driving system, and a braking system according to their operating characteristics.

The pedal is one of the indispensable parts in the bicycle, and its effect is crucial, but most bicycle pedal turning does not have the variable speed dish, and the length that the pedal turned keeps unchangeable, leads to people to ride comparatively labouriously when tired, and the pedal turns the distance from the axis unchangeable, leads to moment unchangeable, does not reach laborsaving effect, consequently needs to make further improvement on this basis.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a telescopic pedal crutch for a bicycle, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a telescopic bicycle pedal crank, the telescopic bicycle pedal crank comprising:

one end of the rotating fluted disc is fixedly connected with a connecting mechanism;

the sliding mechanism is connected with the connecting mechanism in a sliding manner; and the driving mechanism is fixedly connected with the sliding mechanism.

As a further scheme of the utility model: the connecting mechanism comprises a first linear bearing seat, a second linear bearing seat, a sliding rod positioning block and a fixed disc, the first linear bearing seat and the second linear bearing seat are symmetrically arranged with the axis of the rotating fluted disc and are fixedly connected with the axis of the rotating fluted disc, and the fixed disc is fixedly connected with the whole bicycle.

As a further scheme of the utility model: the sliding mechanism comprises a first sliding straight rod, a second sliding straight rod and a pedal rolling bearing, the first sliding straight rod and the second sliding straight rod are respectively in sliding connection with a first linear bearing seat and a second linear bearing seat, and one ends, far away from the driving mechanism, of the first sliding straight rod and one ends, far away from the driving mechanism, of the second sliding straight rod are fixedly connected with a sliding rod positioning block.

As a further scheme of the utility model: the driving mechanism comprises a pedal positioning block, a pedal shaft and a pedal, the pedal positioning block is fixedly connected with the end faces of the first sliding straight rod and the second sliding straight rod at the same side, one end of the pedal shaft is fixedly connected with the pedal positioning block, the other end of the pedal shaft is rotatably connected with the pedal, and the pedal positioning block is located at one end of the pedal shaft and is fixedly connected with a pedal dynamic positioning shaft.

As a further scheme of the utility model: the middle part of the fixed disc is provided with a pedal track groove, and the rolling bearing is rotationally connected to one end of the pedal positioning block, which is positioned on the fixed disc, and is in sliding connection with the pedal track groove.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model relates to a telescopic pedal crutch of a bicycle, which is characterized in that a pedal is one of essential parts in the bicycle, the function is crucial, but most of the pedal crutches of the bicycle are not provided with a speed changing disc, the length of the pedal crutches is kept unchanged, so that people feel more laboursome when riding in fatigue, the distance between the pedal crutches and a central shaft is unchanged, so that the moment is unchanged, and the labor-saving effect cannot be achieved, therefore, the telescopic pedal crutches of the bicycle need to be designed:

when the bicycle is assembled with the telescopic pedal crutch, a force is applied to the pedal plate in the riding process, the pedal plate positioning block is rotationally connected with the pedal plate rolling bearing and can drive the pedal plate rolling bearing to slide along the inside of the pedal plate track groove, the rotating fluted disc and the fixed disc have different axes, when the pedal plate rolling bearing slides along the pedal plate track groove track, the first sliding straight rod and the second sliding straight rod can be further driven to respectively slide along the first linear bearing seat and the second linear bearing seat, so as to drive the rotating tooth disc to rotate around the axes, the distance between the pedal crutch and the central shaft can be changed, compared with the pedal crutch with unchanged length, the torque for driving the bicycle is a fixed value when the pedal plate rolling bearing slides to the position closest to the central shaft due to the telescopic adjustment of the first sliding straight rod and the second sliding straight rod, the people of riding this moment need turn the power of exerting force for the biggest to the step, and need exert force all to be less than the most energetically when step antifriction bearing is in other optional position, compare in the unchangeable step of length and turn, this scalable step is turned and can be reached laborsaving effect to a certain extent, avoid riding the passerby and ride the in-process for a long time and lead to the hypodynamia because excessive fatigue, also can make and ride passerby more convenient laborsaving at the in-process of riding, it is longer to ride the distance.

Drawings

FIG. 1 is a schematic view of a telescopic pedal crank of a bicycle according to the present invention.

FIG. 2 is a schematic top view of the telescopic pedal crank of the bicycle of the present invention.

FIG. 3 is a partially enlarged schematic view of the retractable pedal crank of the bicycle of the present invention shown in FIG. 1 at A.

In the figure: the method comprises the following steps of 1-rotating fluted disc, 2-pedal track groove, 3-first linear bearing seat, 4-second linear bearing seat, 5-first sliding straight rod, 6-second sliding straight rod, 7-sliding rod positioning block, 8-pedal positioning block, 9-pedal shaft, 10-pedal, 11-fixed disk, 12-pedal rolling bearing and 13-pedal dynamic positioning shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1, in an embodiment of the present invention, a telescopic pedal crank for a bicycle comprises:

one end of the rotating fluted disc 1 is fixedly connected with a connecting mechanism;

the sliding mechanism is connected with the connecting mechanism in a sliding manner; and actuating mechanism, actuating mechanism and slide mechanism fixed connection, compare in the unchangeable pedal foot of length and turn, this scalable pedal foot turns can reach laborsaving effect to a certain extent, avoids riding passerby and rides the in-process for a long time and lead to debilitating owing to overstrain, also can make to ride passerby and ride more convenient laborsaving of in-process, the distance of riding is longer.

As shown in fig. 1-3, in the embodiment of the present invention, the connecting mechanism includes a first linear bearing seat 3, a second linear bearing seat 4, a sliding rod positioning block 7 and a fixed disk 11, the first linear bearing seat 3 and the second linear bearing seat 4 are symmetrically disposed and fixedly connected with the axis of the rotating fluted disc 1, the fixed disk 11 is fixedly connected with the whole bicycle, the sliding mechanism includes a first sliding straight rod 5, a second sliding straight rod 6 and a pedal rolling bearing 12, the first sliding straight rod 5 and the second sliding straight rod 6 are respectively slidably connected with the first linear bearing seat 3 and the second linear bearing seat 4, ends of the first sliding straight rod 5 and the second sliding straight rod 6 far away from the driving mechanism are both fixedly connected with the sliding rod positioning block 7, the driving mechanism includes a pedal positioning block 8, a pedal shaft 9 and a pedal plate 10, the pedal positioning block 8 is fixedly connected with end faces of the first sliding straight rod 5 and the second sliding straight rod 6 on the same side, one end of a pedal plate shaft 9 is fixedly connected with a pedal plate positioning block 8, the other end of the pedal plate shaft 9 is rotatably connected with a pedal plate 10, a pedal plate track groove 2 is formed in the middle of a fixed disc 11, a rolling bearing is rotatably connected to one end of the pedal plate positioning block 8, which is positioned at the fixed disc 11 and is in sliding connection with the pedal plate track groove 2, when the bicycle is assembled with the telescopic pedal crutch, people apply a force to the pedal plate 10 during the riding process, because the pedal plate positioning block 8 is rotatably connected with a pedal plate rolling bearing 12, the pedal plate rolling bearing 12 can be driven to slide along the inside of the pedal plate track groove 2, because the axes of the rotating fluted disc 1 and the fixed disc 11 are different, when the pedal plate rolling bearing 12 slides along the pedal plate track groove 2, the first sliding straight rod 5 and the second sliding straight rod 6 can be further driven to slide along the first straight rod bearing seat 3 and the second straight rod bearing seat 4 respectively, and then drive and rotate fluted disc 1 and rotate around the axle center, can change the pedal and turn the distance from the axis, compare in the unchangeable pedal turning of length, because the scalable regulation of first slip straight-bar 5 and second slip straight-bar 6, slide to when the position apart from the axis distance is nearest when footboard antifriction bearing 12, and the moment of drive bicycle is the fixed value, the people of riding this moment need turn the power of exerting oneself to the pedal and be the biggest, and the required power of exerting oneself when footboard antifriction bearing 12 is other optional position all will be less than the maximum power, compare in the unchangeable pedal turning of length, this scalable pedal turning can reach laborsaving effect to a certain extent, avoid riding the passerby to lead to the hypodynamia at long-time riding in-process because of overwork, also can make and ride passerby more convenient laborsaving at the in-process of riding, it is longer to ride the distance.

Example 2

As shown in fig. 3, in the embodiment of the present invention, the present invention further provides another embodiment, which is different from the above embodiment in that: the end of the pedal positioning block 8, which is located on the pedal shaft 9, is fixedly connected with a pedal dynamic positioning shaft 13, and the distance between the pedal rolling bearing 12 and the rotating fluted disc 1 can be approximately known through the relative position of the pedal dynamic positioning shaft 13 and the pedal 10, so that a rider can apply a force with an appropriate size to the pedal 10 conveniently.

The working principle of the utility model is as follows:

in this embodiment, when the bicycle is assembled with the telescopic pedal crank, a force is applied to the pedal 10 during riding, the pedal positioning block 8 is rotatably connected to the pedal rolling bearing 12 to drive the pedal rolling bearing 12 to slide along the inside of the pedal track groove 2, the rotating toothed disc 1 and the fixed disc 11 have different axes, when the pedal rolling bearing 12 slides along the pedal track groove 2, the first sliding straight rod 5 and the second sliding straight rod 6 can be further driven to slide along the first linear bearing seat 3 and the second linear bearing seat 4 respectively, and the rotating toothed disc 1 is further driven to rotate around the axis, so as to change the distance from the pedal crank to the center shaft, compared with the pedal crank with a constant length, due to the telescopic adjustment of the first sliding straight rod 5 and the second sliding straight rod 6, when the pedal rolling bearing 12 slides to the position closest to the center shaft, and the moment of drive bicycle is the fixed value, the people of riding this moment need turn the power of exerting force to the step and be the biggest, and the required power of exerting all will be less than the maximum power when step board antifriction bearing 12 other optional position, compare in the unchangeable step foot of length and turn, this scalable step foot turns can reach laborsaving effect to a certain extent, avoid riding the passerby and ride the in-process for a long time and lead to the hypodynamia because of overwork, also can make and ride passerby more convenient laborsaving at the in-process of riding, it is longer to ride the distance.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a flexible pedal of bicycle turns which characterized in that: the bicycle flexible pedal crutch comprises:

2. The telescopic bicycle pedal crutch of claim 1 wherein: the connecting mechanism comprises a first linear bearing seat, a second linear bearing seat, a sliding rod positioning block and a fixed disc, the first linear bearing seat and the second linear bearing seat are symmetrically arranged with the axis of the rotating fluted disc and are fixedly connected with the axis of the rotating fluted disc, and the fixed disc is fixedly connected with the whole bicycle.

3. The telescopic bicycle pedal crank of claim 2, wherein: the sliding mechanism comprises a first sliding straight rod, a second sliding straight rod and a pedal rolling bearing, the first sliding straight rod and the second sliding straight rod are respectively in sliding connection with a first linear bearing seat and a second linear bearing seat, and one ends, far away from the driving mechanism, of the first sliding straight rod and one ends, far away from the driving mechanism, of the second sliding straight rod are fixedly connected with a sliding rod positioning block.

4. The telescopic bicycle pedal crutch of claim 3 wherein: the driving mechanism comprises a pedal positioning block, a pedal shaft and a pedal, the pedal positioning block is fixedly connected with the end faces of the first sliding straight rod and the second sliding straight rod at the same side, one end of the pedal shaft is fixedly connected with the pedal positioning block, the other end of the pedal shaft is rotatably connected with the pedal, and the pedal positioning block is located at one end of the pedal shaft and is fixedly connected with a pedal dynamic positioning shaft.

5. The telescopic bicycle pedal crutch of claim 4 wherein: the middle part of the fixed disc is provided with a pedal track groove, and the rolling bearing is rotationally connected to one end of the pedal positioning block, which is positioned on the fixed disc, and is in sliding connection with the pedal track groove.