CN216611471U

CN216611471U - Lever gear transmission bicycle

Info

Publication number: CN216611471U
Application number: CN202123064062.3U
Authority: CN
Inventors: 陈继松
Original assignee: Dongguan Mingjia Model Technology Co ltd
Current assignee: Dongguan Mingjia Model Technology Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-27
Anticipated expiration: 2031-12-07
Also published as: WO2023103979A2; WO2023103979A3

Abstract

The utility model discloses a lever gear transmission bicycle, which comprises a bicycle frame (1), and a front wheel and a rear wheel (6) which are arranged on the bicycle frame (1), wherein the rear wheel is driven to rotate by a lever mechanism and a gear mechanism, the lever mechanism swings up and down to drive the gear mechanism to rotate, the gear mechanism is connected with the rear wheel, and the rotating gear mechanism drives the rear wheel (6) to roll. The utility model adopts reasonable transmission ratio and the position of the fulcrum on the lever, so that the lever gear transmission structure of the utility model is more labor-saving and has higher riding efficiency.

Description

Lever gear transmission bicycle

Technical Field

The utility model relates to the field of bicycles, in particular to a lever gear transmission bicycle.

Background

The bicycle is a common non-motor vehicle, the traditional mode is that a pedal plate rotates, and a chain is used for driving a rear wheel to rotate so as to achieve the purpose of advancing, but the mode is low in force application rate and low in transmission efficiency due to rotation motion, so that the bicycle is very labored when being ridden, and therefore, some lever-driven bicycles are invented by people.

Disclosure of Invention

The utility model aims to solve the technical problem that a lever gear transmission bicycle adopts a reasonable transmission ratio and a position of a fulcrum on a lever, so that the lever gear transmission structure is more labor-saving and has higher riding efficiency.

The utility model is realized by the following technical scheme: a lever-gear transmission bicycle comprises a bicycle frame, a front wheel and a rear wheel, wherein the front wheel and the rear wheel are installed on the bicycle frame, the rear wheel is driven to rotate through a lever mechanism and a gear mechanism, the gear mechanism is driven to rotate by the up-and-down swinging of the lever mechanism, the gear mechanism is connected with the rear wheel, and the rear wheel is driven to roll by the rotating gear mechanism.

According to the preferable technical scheme, the gear mechanism comprises a linkage gear and a driving gear, the driving gear is mounted on a bicycle frame, the linkage gear is mounted in the center of a wheel shaft of the rear wheel, the linkage gear is meshed with the driving gear, and the driving gear is driven to rotate by the up-and-down swing of the lever mechanism.

Preferably, the linkage gear is a pinion gear, the driving gear is a bull gear, and the gear ratio of the driving gear to the linkage gear is 5-2: 1.

As a preferred technical scheme, the lever mechanism comprises a lever and a connecting rod, a fulcrum is arranged at a position, close to one third of one side of the rear wheel, on the lever, the lever is installed on the bicycle framework through the fulcrum, the lever is hinged with the connecting rod, and the other end of the connecting rod is hinged with a spoke of the driving gear.

As a preferred technical scheme, the length ratio of the levers on the two sides of the fulcrum is 1: 3.

As the preferred technical scheme, a hinged fixed shaft is arranged in the middle of the driving gear.

The utility model has the beneficial effects that: the ratio of the levers on the two sides of the fulcrum is 1: 2-4, the ratio between the big gear and the small gear is more reasonable, and the structure of the levers and the gears is combined, so that the bicycle is higher in efficiency and more labor-saving when riding, and is particularly suitable for being used on flat urban ground.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a first schematic structural diagram of the present invention;

fig. 2 is a second structural schematic diagram of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly

In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 and 2, the lever gear transmission bicycle of the present invention comprises a bicycle frame 1, and a front wheel and a rear wheel 6 mounted on the bicycle frame 1, wherein the rear wheel is driven to rotate by a lever mechanism and a gear mechanism, the lever mechanism swings up and down to drive the gear mechanism to rotate, the gear mechanism is connected with the rear wheel, and the rotating gear mechanism drives the rear wheel 6 to roll.

In this embodiment, the gear mechanism includes a linkage gear 7 and a driving gear 5, the driving gear 5 is mounted on the bicycle frame 1, the linkage gear 7 is mounted at the center of the wheel axle of the rear wheel 6, the linkage gear 7 is engaged with the driving gear 5, and the driving gear 5 is driven to rotate by the up-and-down swing of the lever mechanism.

Wherein, the linkage gear 7 is a small gear, the driving gear 5 is a big gear, and the gear ratio of the driving gear 5 and the linkage gear 7 is 5-2: 1, which can be 2: 1 or 3: 1 or 5: 1, etc.

Wherein, lever mechanism includes lever 2 and connecting rod 4, and the position that is close to one third of rear wheel 6 one side on lever 2 sets up a fulcrum 3, and lever 2 passes through fulcrum 3 and installs on bicycle frame 1, and articulated between lever 2 and the connecting rod 4, the other end of connecting rod 4 is connected with the spoke of drive gear 5 is articulated. The ratio of the levers 2 on the two sides of the fulcrum 3 is 1: 2-4, and the position of the fulcrum determines the transmission ratio of the whole lever, so the length ratio of the lever taking the fulcrum as the center in the embodiment is 1: 3, which is the most labor-saving transmission ratio value.

Wherein, a hinged fixed shaft 8 is arranged in the middle of the driving gear 5, when the lever does up-and-down swinging motion, the connecting rod is driven to rotate by taking the fulcrum as the center, and then the driving gear is driven to rotate, and the purpose of advancing the whole bicycle is achieved by utilizing the lever which reciprocates up and down.

The ratio of the levers on the two sides of the fulcrum is 1: 3, the ratio between the big gear and the small gear is more reasonable, and the structure of the levers and the gears is combined, so that the bicycle is higher in efficiency and more labor-saving when riding, and is particularly suitable for being used on flat urban ground.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A lever gear transmission bicycle is characterized in that: the bicycle comprises a bicycle frame (1), a front wheel and a rear wheel (6) which are arranged on the bicycle frame (1), wherein the rear wheel is driven to rotate by a lever mechanism and a gear mechanism, the gear mechanism is driven to rotate by the up-and-down swing of the lever mechanism, the gear mechanism is connected with the rear wheel, and the rear wheel (6) is driven to roll by the rotating gear mechanism.

2. The lever-gear-driven bicycle according to claim 1, wherein: the gear mechanism comprises a linkage gear (7) and a driving gear (5), the driving gear (5) is installed on the bicycle framework (1), the linkage gear (7) is installed at the center of a wheel shaft of the rear wheel (6), the linkage gear (7) is meshed with the driving gear (5), and the driving gear (5) is driven to rotate by the up-and-down swing of the lever mechanism.

3. The lever-gear-driven bicycle according to claim 2, wherein: the linkage gear (7) is a pinion, the driving gear (5) is a bull gear, and the gear ratio of the driving gear (5) to the linkage gear (7) is 5-2: 1.

4. The lever-gear-driven bicycle according to claim 1, wherein: the lever mechanism comprises a lever (2) and a connecting rod (4), a fulcrum (3) is arranged at a position, close to one third of one side of a rear wheel (6), on the lever (2), the lever (2) is installed on a bicycle framework (1) through the fulcrum (3), the lever (2) is hinged to the connecting rod (4), and the other end of the connecting rod (4) is hinged to a spoke on one side of a driving gear (5).

5. The lever-gear-driven bicycle according to claim 4, wherein: the length ratio of the levers (2) at the two sides of the fulcrum (3) is 1: 3.

6. The lever-gear-driven bicycle according to claim 4, wherein: a hinged fixed shaft (8) is arranged in the middle of the driving gear (5).