CN115158529A

CN115158529A - Bicycle and driving assembly thereof

Info

Publication number: CN115158529A
Application number: CN202210890784.4A
Authority: CN
Inventors: 杨成
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-10-11

Abstract

The embodiment of the application discloses bicycle and drive assembly thereof can make the rider step on the pedal drive bicycle with the reciprocating drive mode from top to bottom to obtain more laborsaving effect through designing longer power arm. The bicycle comprises a front wheel frame component, a rear wheel frame component, a front wheel rotationally connected to the front wheel frame component, a rear wheel rotationally connected to the rear wheel frame component, a transmission component for driving the rear wheel to rotate and a driving component for driving the transmission component to rotate, wherein the driving component is connected to the rear wheel frame component and comprises a crank component, a first connecting rod component, a second connecting rod component and a third connecting rod component, the crank component is connected with one end of the first connecting rod component and the transmission component, the other end of the first connecting rod component is connected with one end of the second connecting rod component, the other end of the second connecting rod component is rotationally connected with the rear wheel frame component, one end of the third connecting rod component is connected with the second connecting rod component, and the other end of the third connecting rod component is used for being connected with a pedal.

Description

Bicycle and drive assembly thereof

Technical Field

The present application relates to the field of bicycle technology, and more particularly, to a bicycle and a drive assembly therefor.

Background

A bicycle generally includes a front wheel, a rear wheel, a front wheel frame rotatably connected to the front wheel, a rear wheel frame rotatably connected to the rear wheel, a driving wheel (the driving wheel may be a sprocket wheel for transmitting motive power, and is connected to at least one of the front wheel and the rear wheel via a chain) for driving the front wheel and the rear wheel to rotate, and a pedal. In the current bicycle, a driver needs to step on a pedal in a circle manner to drive a driving sprocket to rotate. This rounding results in a high frequency of flexing of the muscles of the front and rear of the rider's ankles and is prone to knee strain.

Disclosure of Invention

It is an object of the present application to solve the above problems and provide corresponding advantageous effects.

It is yet another object of the present invention to provide a bicycle and its drive assembly that enables the rider to drive the bicycle with up and down pedaling and that results in more effort-saving by designing a longer power arm.

In order to achieve the above purpose, the main technical solutions adopted in the embodiments of the present application are as follows:

in a first aspect, the present application provides a drive assembly for a bicycle, the bicycle comprising: the device comprises a front wheel frame assembly, a rear wheel frame assembly, a front wheel rotationally connected with the front wheel frame assembly, a rear wheel rotationally connected with the rear wheel frame assembly, a transmission assembly for driving the rear wheel to rotate and a driving assembly for driving the transmission assembly to rotate, wherein the driving assembly is connected with the rear wheel frame assembly;

the driving assembly comprises a crank member, a first connecting rod member, a second connecting rod member and a third connecting rod member, the crank member is connected with one end of the first connecting rod member and the transmission assembly, the other end of the first connecting rod member is connected with one end of the second connecting rod member, the other end of the second connecting rod member is rotatably connected with the rear wheel carrier assembly, one end of the third connecting rod member is connected with the second connecting rod member, and the other end of the third connecting rod member is used for being connected with a pedal.

In a second aspect, the present application provides a bicycle comprising:

the device comprises a front wheel frame assembly, a rear wheel frame assembly, a front wheel rotationally connected with the front wheel frame assembly, a rear wheel rotationally connected with the rear wheel frame assembly, a transmission assembly for driving the rear wheel to rotate and two driving assemblies for driving the transmission assembly to rotate; the two driving components are respectively connected to two sides of the rear wheel carrier component;

the driving assembly comprises a crank member, a first connecting rod member, a second connecting rod member and a third connecting rod member, wherein the crank member is connected with one end of the first connecting rod member and the transmission assembly, the other end of the first connecting rod member is connected with one end of the second connecting rod member, the other end of the second connecting rod member is rotatably connected with the rear wheel carrier assembly, one end of the third connecting rod member is connected with the second connecting rod member, and the other end of the third connecting rod member is connected with a pedal.

In some embodiments, the two crank members of the two drive assemblies are coaxially arranged 180 degrees out of phase and the two crank members are arranged in parallel.

In some aspects, the transmission member comprises: a driving wheel, a driven wheel and a rotating shaft;

the rotating shaft is connected with the rear wheel carrier assembly,

the driving wheel is coaxially connected with the rotating shaft, the driving wheel is connected with the driven wheel, the driving wheel is connected with one end of the rotating shaft,

the driven wheel is coaxially connected with the rear wheel and is used for driving the rear wheel to rotate;

wherein one of the crank members of the two drive assemblies is connected to one end of the rotating shaft, and the other crank member is connected to the other end of the rotating shaft.

In some aspects, the rear wheel carriage assembly comprises: the lifting handle is connected with the rear wheel frame main body or the frame upper cover and is positioned in front of the frame upper cover.

In some technical schemes, the rear wheel carrier main body is provided with two reference pin shafts, and the two reference pin shafts are respectively and symmetrically arranged on the left side and the right side of the rear wheel carrier main body; one of the reference pins is connected to one of the second link members of the two drive assemblies, and the other of the reference pins is connected to the other of the second link members.

In some technical schemes, the number of the front wheels is 2, the 2 front wheels are rotatably connected with the front wheel frame, and the two front wheels are symmetrically arranged on the left side and the right side of the front wheel frame.

In some technical solutions, the bicycle further includes 2 auxiliary rear wheels, wherein the 2 auxiliary rear wheels are connected with the rear wheel carrier main body, and the two auxiliary rear wheels are symmetrically arranged on the left side and the right side of the rear wheel carrier main body.

In some embodiments, one end of the third link member is connected to a middle portion of the second link member, the middle portion of the second link member refers to a middle region between the one end and the other end of the second link member, and the one end of the third link member is integrally connected to the middle portion of the second link member;

the second connecting rod component is arranged in a bent mode, and the bending direction of the second connecting rod component faces the first connecting rod component;

an included angle between a portion between the middle portion and the other end of the second link member and the third link member is an acute angle.

In some embodiments, the crank member includes a circular base and a rod-like extension extending from a circumferential edge of the circular base, and the rod-like extension is connected to one end of the first link member, and more specifically, an end of the rod-like extension away from the circular base is connected to one end of the first link member.

The embodiment of the application has the following technical effects:

according to the bicycle provided by the embodiment of the application, when a rider reciprocates along the vertical direction and steps on the pedal, power can be transmitted to the third connecting rod member, the second connecting rod member, the first connecting rod member and the crank member in sequence. In the process, the second connecting rod component rotates around the rear wheel carrier component to further drive one end of the first connecting rod component to move, so that the crank component makes circular motion, and meanwhile, power is transmitted to the transmission component to further drive the rear wheel to rotate. Therefore, the bicycle is not driven in a circle stepping mode any more, the stretching frequency of the muscles at the front and the rear of the ankles of the rider can be reduced, the knee strain degree is reduced, and the body of the rider is effectively protected.

In addition, in the power driving process, power provided by the feet of the rider is transmitted to the transmission assembly through the pedal, the third connecting rod member, the second connecting rod member, the first connecting rod member and the crank member in sequence, so that the length of the power arm is greatly increased, and a more labor-saving effect can be obtained according to the lever principle.

Additional advantages, objects, and features of the application will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the application.

Drawings

FIG. 1 is a schematic view of a bicycle in accordance with an embodiment of the present application;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of a drive assembly of an embodiment of the present application;

FIG. 4 is a schematic view of a crank member of an embodiment of the present application;

FIG. 5 is a schematic view of a rear wheel carrier body of an embodiment of the present application;

FIG. 6 is a schematic view of the rear wheel carrier body coupled to the rotating axle according to the embodiment of the present application;

FIG. 7 is yet another schematic view of the cycling apparatus in accordance with the embodiment of the present application;

FIG. 8 is another schematic view of the bicycle of the present embodiment of the application;

reference numerals are as follows:

10. a front wheel carrier assembly; 20. a rear wheel carrier assembly; 30. a front wheel; 40. a rear wheel; 50. a drive assembly; 60. a transmission assembly; 70. an auxiliary rear wheel assembly; 110. a handlebar; 120. a faucet member; 210. a rear wheel carrier main body; 220. a frame upper cover; 230. lifting a handle; 211. a connecting pipe; 212. a reference pin shaft; 213. a first rotary connection; 214. a second rotation connecting portion; 510. a crank member; 520. a first link member; 530. a second link member; 540. a third link member; 550. a foot pedal; 511. a circular base; 512. a rod-like extension; 610. a driving wheel; 620. a driven wheel; 630. a rotating shaft; 710. an auxiliary rear wheel; 720. a connecting member; 80. a vehicle seat.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present application more clear and obvious, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The terms "first", "second" and "third" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

Further, the orientations and positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like are based on the orientations and positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or apparatus referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

Drive assembly for a bicycle

In a first aspect, the present application provides a drive assembly 50 for a bicycle.

For the purpose of describing the drive assembly 50, the construction of the bicycle will first be described. As can be seen in particular in fig. 1 and 2, said cycle comprises: the front wheel frame assembly 10, the rear wheel frame assembly 20, the front wheel 30 rotatably connected to the front wheel frame assembly 10, the rear wheel 40 rotatably connected to the rear wheel frame assembly 20, the transmission assembly 60 for driving the rear wheel 40 to operate, and the driving assembly 50 for driving the transmission assembly 60 to operate, wherein the driving assembly 50 is connected to the rear wheel frame assembly 20.

On the basis of the above, as further shown in fig. 3, the driving assembly 50 includes a crank member 510, a first link member 520, a second link member 530, and a third link member 540, wherein the crank member 510 is connected to one end of the first link member 520 and the transmission assembly 60, the other end of the first link member 520 is connected to one end of the second link member 530, the other end of the second link member 530 is rotatably connected to the rear wheel frame assembly 20, and one end of the third link member 540 is connected to the second link member 530, and the other end is used for connecting to the pedal 550.

When the rider steps on the footrest 550 in the up-down direction, power may be transmitted to the third link member 540, the second link member 530, the first link member 520, and the crank member 510 in sequence. In this process, the second link member 530 rotates around the rear wheel frame assembly 20, further driving one end of the first link member 520 to move, so that the crank member 510 makes a circular motion, and simultaneously transmits power to the transmission assembly 60, thereby driving the rear wheel 40 to rotate.

In addition, in the power driving process, power provided by the feet of the rider sequentially passes through the pedal, the third connecting rod component, the second connecting rod component, the first connecting rod component and the crank component and then is transmitted to the transmission assembly, the length of the power arm is greatly increased, and a more labor-saving effect can be obtained according to the lever principle.

It should be noted that the third link member 540 is connected to the second link member 530, and corresponds to a rocker.

Further, one end of the third link member 540 is connected to a middle portion of the second link member 530, and the middle portion of the second link member 530 refers to a middle region between one end and the other end of the second link member 530. Further, one end of the third link member 540 is integrally formed with the middle portion of the second link member 530.

Further, the driving assembly 50 includes a foot pedal 550, and the foot pedal 550 is connected to the other end of the third link member 540.

In some embodiments, the transmission assembly 60 includes at least one of a driving wheel 610, a chain or a belt (not shown), and the driving wheel 610 is connected with at least one of the front wheel 30 and the rear wheel 40 through the chain or the belt. In some embodiments, the transmission assembly 60 may also be implemented in other ways, as will be described in detail below.

< bicycle >

On the basis of the foregoing, as shown in fig. 1-8, the present application also provides a bicycle in a second aspect. With reference first to fig. 1-3, the cycle comprises:

the device comprises a front wheel frame component 10, a rear wheel frame component 20, a front wheel 30 rotationally connected with the front wheel frame component 10, a rear wheel 40 rotationally connected with the rear wheel frame component 20, a transmission component 60 for driving the rear wheel to operate and two driving components 50 for driving the transmission component 60 to operate; wherein, the two driving assemblies 50 are respectively connected to two sides of the rear wheel frame assembly 20;

the driving assembly 50 includes a crank member 510, a first link member 520, a second link member 530, and a third link member 540, wherein the crank member 510 is connected to one end of the first link member 520 and the transmission assembly 60, the other end of the first link member 520 is connected to one end of the second link member 530, the other end of the second link member 530 is rotatably connected to the rear wheel frame assembly 20, one end of the third link member 540 is connected to the second link member 530, and the other end is connected to a pedal 550.

For each of the driving assemblies 50, when the rider steps on the foot pedal 550 in the up-down direction, power may be transmitted to the third link member 540, the second link member 530, the first link member 520, and the crank member 510 in sequence. In this process, the second link member 530 rotates around the rear wheel frame assembly 20, further driving one end of the first link member 520 to move, so that the crank member 510 makes a circular motion, and simultaneously transmits power to the transmission assembly 60, thereby driving the rear wheel 40 to rotate.

In some embodiments, two of the drive assemblies 50 are arranged in central symmetry, and the two crank members 510 of the two drive assemblies 50 are arranged coaxially 180 degrees out of phase while the two crank members 510 are arranged in parallel. Thus, by alternately driving the two third link members 540 and the second link member 530, the mechanism dead point effect can be eliminated, and the two crank members 510 can be continuously rotated.

In some embodiments, as shown in fig. 4, the crank member 510 includes a circular base 511 and a rod-like extension 512 extending from a circumferential edge of the circular base 511, wherein the rod-like extension 512 is connected to one end of the first link member 520, and more specifically, an end of the rod-like extension 512 away from the circular base 511 is connected to one end of the first link member 520.

Further, one end of the third link member 540 is connected to the middle of the second link member 530, and the middle of the second link member 530 refers to a middle region between one end and the other end of the second link member 530. Further, one end of the third link member 540 is integrally formed with the middle portion of the second link member 530.

In some embodiments, the second link member 530 is disposed in a curved manner, and the curved direction is toward the first link member 520.

In some embodiments, an angle between a portion between the middle portion and the other end of the second link member 530 and the third link member 540 is acute.

In some embodiments, continuing to be shown in fig. 5, the rear wheel carriage assembly 20 includes: the frame structure comprises a rear wheel frame main body 210, a frame upper cover 220 and a lifting handle 230, wherein the frame upper cover 220 is arranged at the upper end of the rear wheel frame main body 210, and the lifting handle 230 is connected with the rear wheel frame main body 210 or the frame upper cover 220 and is positioned in front of the frame upper cover 220.

In some embodiments, the rear wheel carriage body 210 is an axisymmetric structure.

In some embodiments, the rear wheel frame body 210 has a connection pipe 211, and the connection pipe 211 is connected with the front wheel frame assembly 10.

In some embodiments, the rear wheel frame body 210 has two reference pins 212, and the two reference pins 212 are symmetrically disposed on the left and right sides of the rear wheel frame body 210; the two reference pins 212 correspond to the two driving assemblies 50 one by one, wherein one reference pin 212 is connected to one second link member 530 of the two driving assemblies 50, and the other reference pin 212 is connected to the other second link member 530

In some embodiments, the rear wheel carrier body 210 has a first rotational connection 213, the first rotational connection 213 being coaxially connected with the rear wheel. This facilitates the rotation of the driven wheel 620 with the rear wheel.

In some embodiments, the rear wheel frame body 210 has a second rotational connection part 214, and the second rotational connection part 214 is coaxially connected with the rotational shaft 630. Further, the rotating shaft 630 may be sleeved inside the second rotating connection portion 214, and two ends of the rotating shaft 630 respectively extend out of two ends of the second rotating connection portion 214 along the left-right direction, as shown in fig. 6. This facilitates the rotation of the rotating shaft 630 by the crank member 510.

In some embodiments, the first rotation connecting part 213 and the first rotation connecting part 213 are each provided in a cylindrical shape.

In some embodiments, the transmission assembly 60 includes at least one of a driving wheel 610, a chain or a belt (not shown), and the driving wheel 610 is connected with at least one of the front wheel 30 and the rear wheel 40 through the chain or the belt.

Of course, in some embodiments, the transmission assembly 60 may also be implemented in such a way that the transmission assembly 60 includes: a driving pulley 610, a driven pulley 620, and a rotating shaft 630. More specifically, the rotating shaft 630 is connected to the rear wheel carrier assembly 20, specifically, as shown in fig. 6, the driving wheel 610 is coaxially connected to the rotating shaft 630, the driving wheel 610 is connected to the driven wheel 620, further, the driving wheel 610 is connected to one end of the rotating shaft 630, and the driven wheel 620 is coaxially connected to the rear wheel 40, so as to drive the rear wheel 40 to rotate; wherein one of the crank members 510 of the two driving assemblies 50 is connected to one end of the rotating shaft 630, and the other crank member 510 is connected to the other end of the rotating shaft 630. With such a design, the crank member 510 can drive the rotation shaft 630 to rotate, and further drive the driving wheel 610 to rotate.

In some embodiments, the driving wheel 610 and the driven wheel 620 are provided as sprockets, and the driving wheel 610 and the driven wheel 620 are connected by a chain (not shown).

In some embodiments, the bicycle further comprises 2 auxiliary rear wheel assemblies 70, wherein 2 auxiliary rear wheel assemblies 70 are connected to the rear wheel frame body 210, and two auxiliary rear wheel assemblies 70 are symmetrically arranged on the left and right sides of the rear wheel frame body 210. The auxiliary rear wheel assembly 70 includes an auxiliary rear wheel 710 and a connecting member 720, and the auxiliary rear wheel 710 and the connecting member 720 are sequentially connected to the rear wheel frame main body 210. The present embodiment can enhance the balance of the vehicle body. To more easily obtain high speed and public (e.g. children) adaptability.

In some embodiments, the front wheel frame assembly 10 includes a handlebar 110 and a tap member 120 connected to the handlebar 110; the handle bar 110 is positioned above the tap member 120, and the tap member 120 is connected to the rear wheel frame body 210, and more particularly, to the connection pipe 211 of the rear wheel frame body 210.

In some embodiments, as shown in fig. 7, unlike fig. 1, the number of the front wheels 30 is 2, 2 front wheels 30 are all rotatably connected to the front wheel frame assembly 10, and two front wheels 30 are symmetrically disposed on the left and right sides of the front wheel frame assembly 10.

In some embodiments, as shown in fig. 8, unlike fig. 1, the bicycle further includes a saddle 80 attached to the frame 20 and positioned above the frame 20.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A drive assembly for a cycle, characterized in that,

the bicycle comprises: the device comprises a front wheel frame component, a rear wheel frame component, a front wheel rotationally connected with the front wheel frame component, a rear wheel rotationally connected with the rear wheel frame component, a transmission component for driving the rear wheel to rotate and a driving component for driving the transmission component to rotate, wherein the driving component is connected with the rear wheel frame component;

2. A cycle, comprising:

3. A cycle as claimed in claim 2, wherein the two crank members of the two drive assemblies are coaxially arranged 180 degrees out of phase and are arranged in parallel.

4. A cycle as claimed in claim 2, wherein said drive members include: the driving wheel, the driven wheel and the rotating shaft;

the rotating shaft is connected with the rear wheel carrier component,

5. A cycle as claimed in claim 2, wherein said rear wheel frame assembly includes: the lifting handle is connected with the rear wheel frame main body or the frame upper cover and is positioned in front of the frame upper cover.

6. A cycle as claimed in claim 5, wherein said rear frame body has two reference pins, said reference pins being symmetrically disposed on left and right sides of said rear frame body, respectively; one of the reference pins is connected to one of the second link members of the two drive assemblies, and the other of the reference pins is connected to the other of the second link members.

7. A cycle as claimed in claim 2, wherein said front wheels are 2, 2 of said front wheels are rotatably connected to said front wheel frame, and two of said front wheels are symmetrically disposed on the left and right sides of said front wheel frame.

8. A cycle as claimed in claim 5, further including 2 auxiliary rear wheels, each of said 2 auxiliary rear wheels being connected to said rear wheel frame body, said two auxiliary rear wheels being symmetrically disposed on the left and right sides of said rear wheel frame body.

9. A cycle as claimed in claim 2, wherein one end of said third link member is connected to a mid-portion of said second link member, said mid-portion of said second link member being a mid-portion region between one end and the other end of said second link member, said one end of said third link member being integrally connected to said mid-portion of said second link member;

10. A cycle as claimed in claim 2, wherein the crank member includes a circular base portion and a rod-like extension extending from a circumferential edge of the circular base portion, the rod-like extension being connected to one end of the first link member, and more particularly, the end of the rod-like extension remote from the circular base portion being connected to one end of the first link member.