CN114044080B

CN114044080B - Bicycle driving mechanism

Info

Publication number: CN114044080B
Application number: CN202111556401.1A
Authority: CN
Inventors: 郑富城; 郑兰芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-18
Filing date: 2021-12-18
Publication date: 2023-04-18
Anticipated expiration: 2041-12-18
Also published as: CN114044080A

Abstract

The invention discloses a bicycle driving mechanism, which is a double-pedaling driving mechanism and comprises two groups of pedals, wherein the first group of pedals are in a linear reciprocating motion mode in the working process, the second group of pedals are in a reciprocating motion mode within a certain angle in the working process, the first group of pedals can be used for driving a bicycle to advance in a standing posture, and the second group of pedals can be used for driving the bicycle to advance in a sitting posture or a lying posture.

Description

Bicycle driving mechanism

Technical Field

The invention relates to the technical field of bicycles, in particular to a bicycle driving mechanism.

Background

Since the birth of the eighteenth century, the bicycle is popular with people, and the bicycle can be used as a vehicle for traveling and also can be used as a physical exercise device. Because the bicycle is ridden with low carbon and environmental protection, the bicycle belongs to green travel, and is advocated vigorously by many countries today. Decision deployment about developing green trips is made in the nineteen major parts of China, green trips are advocated, and ecological civilization is promoted. The bicycle riding is just the best mode of sports and traveling for the whole people at present, and even long-distance riding and traveling are also fashionable, so that the positive attitude of modern people on green traveling is revealed.

The existing bicycle (non-assisted), no matter two-wheeled, three-wheeled and multi-wheeled, no matter single person, double person and many people ride, all have to step on the way and is single and lead to the single problem of riding the appearance (standing posture, position of sitting or lying posture), because keep a posture to ride not only boring and tasteless for a long time, and cause fatigue easily, because the traditional bicycle takes the circular motion to step on the way, the motion range of the shank is large, so in order not to influence the motion range of the shank, can only dispose narrower saddle, cause not only press the buttock but also easy to rub the inside of the thigh in the course of riding, especially when used for riding long distance this defect performance is especially obvious; therefore, the invention provides a bicycle driving mechanism which can improve the riding pleasure, improve the riding experience and has high comfort level so as to solve the existing technical problems.

Disclosure of Invention

The present invention is directed to a bicycle drive mechanism that solves the above-mentioned problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a bicycle drive mechanism is a dual pedaling mode drive mechanism.

Preferably, the driving mechanism comprises a rear chain wheel, a front chain wheel and a transmission shaft, the rear chain wheel and the front chain wheel are rotationally arranged on the bicycle bracket through bearings, the transmission shaft is horizontally and rotatably arranged on the bracket, a chain is connected between the rear chain wheel and the front chain wheel, the chain is provided with a left pedal and a right pedal, a left slide block is arranged below the left pedal, a right slide block is arranged below the right pedal, a left guide rail is arranged below the left slide block, a right guide rail is arranged below the right slide block, the left guide rail and the right guide rail are respectively arranged on the bracket, the bottom end of the chain wheel shaft of the front chain wheel is provided with a first bevel gear, a second bevel gear and a third bevel gear are connected with the first bevel gear in a meshing way, the second bevel gear and the third bevel gear are both arranged on the transmission shaft through bearings, the inner end surfaces of the second bevel gear and the third bevel gear are respectively provided with a first pawl and a second pawl, the surface of the transmission shaft is provided with a first ratchet wheel, the first pawl and the second pawl are respectively matched with the first ratchet wheel independently, a fourth bevel gear and a fifth bevel gear are oppositely arranged on the transmission shaft through a bearing, a sixth bevel gear is connected between the fourth bevel gear and the fifth bevel gear in a meshing transmission way, the sixth bevel gear is arranged on the bracket through a bearing, the fourth bevel gear and the fifth bevel gear are respectively and fixedly connected with a left pedal rod and a right pedal rod, the left pedal rod and the right pedal rod are respectively provided with a left pedal and a right pedal, a second ratchet gear is arranged on the transmission shaft between the fourth bevel gear and the fifth bevel gear, and a third pawl and a fourth pawl which are matched with the second ratchet gear are respectively arranged on the opposite inner end surfaces of the fourth bevel gear and the fifth bevel gear.

Preferably, the first pawl, the second pawl, the third pawl and the fourth pawl are all arranged in the same direction, and the first ratchet gear and the second ratchet gear are also arranged in the same direction.

Has the advantages that: compared with the prior art, the invention has the beneficial effects that: the bicycle driving mechanism has reasonable and novel structure, can randomly switch pedaling modes and randomly change various riding postures in the riding process, can improve the riding experience of riders and enables the riders to be full of fun; the bicycle driving mechanism has the advantages of high transmission efficiency, no driving force generation dead point, strong climbing capability and the like, is high in comfort level, is not easy to fatigue, is favorable for improving endurance mileage, and is particularly suitable for long-distance riding.

Drawings

Fig. 1 is a schematic view of the overall structure of a bicycle driving mechanism according to the present invention.

Fig. 2 is a schematic structural diagram of a bevel gear in the driving mechanism.

FIG. 3 is a schematic view of the connection structure of the pedals and the bevel gears.

Fig. 4 is a schematic structural view of a guide rail slider under the pedal.

FIG. 5 is a diagram of the standing riding effect of a bicycle incorporating a bicycle drive mechanism of the present invention.

Fig. 6 is a sitting riding effect diagram of a bicycle comprising the bicycle driving mechanism provided by the invention.

Fig. 7 is a diagram of the effect of recumbent riding of the bicycle comprising the bicycle driving mechanism provided by the invention.

In the drawings: 1. the device comprises a bracket, 2-1, a left guide rail, 2-2, a right guide rail, 3, a driving mechanism, 301-1, a rear chain wheel, 301-2, a front chain wheel, 302, a chain, 303-1, a left pedal, 303-2, a right pedal, 304, a chain wheel shaft, 305, a first bevel gear, 306-1, a second bevel gear, 306-2, a third bevel gear, 307-1, a first pawl, 307-2, a second pawl, 307-3, a third pawl, 307-4, a fourth pawl, 308-1, a first ratchet gear, 308-2, a second ratchet gear, 309-1, a fourth bevel gear, 309-2, a fifth bevel gear, 310, a sixth bevel gear, 311-1, a left pedal, 311-2, a right pedal, 312, a transmission shaft, 313-1, a left pedal rod, 313-2, a right pedal rod, 4-1, a left slider, 4-2 and a right slider.

Detailed description of the preferred embodiments

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Examples

Referring to the drawings, in one embodiment of the present invention, a bicycle driving mechanism is provided, wherein the driving mechanism is a dual pedaling type driving mechanism.

Further, the driving mechanism comprises a rear chain wheel 301-1, a front chain wheel 301-2 and a transmission shaft 312, the rear chain wheel 301-1 and the front chain wheel 301-2 are rotatably arranged on a bicycle support 1 through bearings, the transmission shaft 312 is horizontally and rotatably arranged on the support 1, a chain 302 is connected between the rear chain wheel 301-1 and the front chain wheel 301-2, the chain 302 is provided with a left pedal 303-1 and a right pedal 303-2, a left sliding block 4-1 is arranged below the left pedal 303-1, a right sliding block 4-2 is arranged below the right pedal 303-2, a left guide rail 2-1 is arranged below the left sliding block 4-1, a right guide rail 2-2 is arranged below the right sliding block 4-2, the left guide rail 2-1 and the right guide rail 2-2 are respectively arranged on the support 1, a first bevel gear 305 is arranged at the bottom end of a sprocket shaft 304 of the front sprocket 301-2, a second bevel gear 306-1 and a third bevel gear 306-2 are engaged with the first bevel gear 305, the second bevel gear 306-1 and the third bevel gear 306-2 are both arranged on the transmission shaft 312 through bearings, a first pawl 307-1 and a second pawl 307-2 are respectively arranged on the inner end surfaces of the second bevel gear 306-1 and the third bevel gear 306-2, a first ratchet gear 308-1 is arranged on the surface of the transmission shaft 312, the first pawl 307-1 and the second pawl 307-2 are respectively matched with the first ratchet gear 308-1, a fourth bevel gear 309-1 and a fifth bevel gear 309-2 are also oppositely arranged on the transmission shaft 312 through bearings, a sixth bevel gear 310 is connected between the fourth bevel gear 309-1 and the fifth bevel gear 309-2 in a meshing transmission manner, the sixth bevel gear 310 is arranged on the bracket 1 through a bearing, the fourth bevel gear 309-1 and the fifth bevel gear 309-2 are respectively and fixedly connected with a left pedal rod 313-1 and a right pedal rod 313-2, the left pedal rod 313-1 and the right pedal rod 313-2 are respectively provided with a left pedal 311-1 and a right pedal 311-2, a second ratchet gear 308-2 is arranged between the fourth bevel gear 309-1 and the fifth bevel gear 309-2 on the transmission shaft 312, and a third pawl 307-3 and a fourth pawl 307-4 which are matched with the second ratchet gear 308-2 are respectively arranged on opposite inner end faces of the fourth bevel gear 309-1 and the fifth bevel gear 309-2.

In order to facilitate the back-and-forth reciprocating motion of the left pedal 303-1 and the right pedal 303-2, a guide rail and a slide block can be arranged below the left pedal 303-1 and the right pedal 303-2, and the left pedal 303-1 and the right pedal 303-2 are respectively arranged on the slide block, and it is noted that the left pedal 303-1 and the right pedal 303-2 reciprocate back and forth, and the motion directions of the left pedal 303-1 and the right pedal 303-2 in the riding process are opposite; the left pedal 311-1 and the right pedal 311-2 also swing back and forth within a certain angle, not complete circular motion, and the moving directions of the left pedal 311-1 and the right pedal 311-2 are also opposite in the riding process. When riding with the left pedal 303-1 and the right pedal 303-2, the rotation directions of the second bevel gear 306-1 and the third bevel gear 306-2 are opposite, but the transmission shaft 312 is always directionally rotated regardless of the rotation directions of the second bevel gear 306-1 and the third bevel gear 306-2; similarly, the fourth bevel gear 309-1 and the fifth bevel gear 309-2 are identical to the second bevel gear 306-1 and the third bevel gear 306-2 when riding with the left foot support 311-1 and the right foot support 311-2.

Further, the first pawl 307-1, the second pawl 307-2, the third pawl 307-3 and the fourth pawl 307-4 are all disposed in the same direction, and the first ratchet gear 308-1 and the second ratchet gear 308-2 are also disposed in the same direction, as shown in the drawing, the first pawl 307-1, the second pawl 307-2, the third pawl 307-3 and the fourth pawl 307-4 are all disposed in the counterclockwise direction, and may be disposed in the clockwise direction, and then the first ratchet gear 308-1 and the second ratchet gear 308-2 should be changed accordingly to cooperate with the above-mentioned pawls.

The use process comprises the following steps:

when the bicycle is ridden in a standing mode, two feet are respectively arranged on the left pedal 303-1 and the right pedal 303-2, when the left pedal 303-1 is pedaled backwards by the left foot, the chain 302 is pulled to drive the front chain wheel 301-2 at the front end to rotate anticlockwise and drive the right pedal 303-2 to move forwards, when the right pedal 303-2 is pedaled backwards by the right foot, the chain 302 is pulled to drive the front chain wheel 301-2 at the front end to rotate clockwise and drive the left pedal 303-1 to move forwards, therefore, the left foot and the right foot pedal are pedaled backwards and repeatedly like a walking posture to pedal backwards and repeatedly, and the front chain wheel 301-2 can be driven to rotate backwards and repeatedly, the front chain wheel 301-2 drives the chain wheel shaft 304 and the first bevel gear 305 to rotate back and forth at the same time, when the first bevel gear 305 rotates clockwise, the second bevel gear 306-1 is driven to rotate forward (assuming that the direction is the forward rotation in accordance with the rolling direction when the wheels advance), at this time, the first pawl 307-1 on the second bevel gear 306-1 is meshed with the first ratchet gear 308-1 to drive the transmission shaft 312 to rotate forward, meanwhile, the third bevel gear 306-2 rotates in the reverse direction, the second pawl 307-2 on the third bevel gear 306-2 slides on the first ratchet gear 308-1 without driving, and the transmission shaft 312 drives the rear wheel to roll forward through the variable speed transmission mechanism to drive the bicycle to advance; when the first bevel gear 305 rotates counterclockwise, the above situation is reversed, and the second pawl 307-2 on the third bevel gear 306-2 engages with the first ratchet gear 308-1 to drive the transmission shaft 312 to rotate forward, and the second bevel gear 306-1 rotates in reverse direction, the first pawl 307-1 on the second bevel gear 306-1 slides on the first ratchet gear 308-1 without driving, and the transmission shaft 312 drives the rear wheel through the speed change transmission mechanism to advance the bicycle. Thus, the bicycle can be continuously driven to move forward by alternately pedaling the left pedal 303-1 and the right pedal 303-2 backwards.

When a user sits on or lies on the seat to ride, two feet are placed on a left pedal 311-1 and a right pedal 311-2, when the left pedal 311-1 is pedaled forwards by the left foot, the fourth bevel gear 309-1 is rotated in the forward direction, the fifth bevel gear 309-2 is rotated in the reverse direction by the fourth bevel gear 309-1 through a sixth bevel gear 310, the right pedal 311-2 is driven to do reverse rotation motion relative to the left pedal 311-1, a fourth pawl 307-4 installed on the fifth bevel gear 309-2 slides on a second pawl gear 308-2 without driving, meanwhile, a third pawl 307-3 installed on the fourth bevel gear 309-1 is meshed with the second pawl gear 308-2 to drive a transmission shaft 312 to rotate in the forward direction, and the transmission shaft 312 drives a rear wheel to roll forwards through a variable speed transmission mechanism to enable the bicycle to advance; when the right foot is used for pedaling the right pedal 311-2 forwards, the situation is opposite to the above situation, at this time, the fifth bevel gear 309-2 rotates forwards, the fifth bevel gear 309-2 enables the fourth bevel gear 309-1 to rotate reversely through the sixth bevel gear 310, the left pedal 311-1 is driven to rotate reversely relative to the right pedal 311-2, the pawl 307-3 arranged on the fourth bevel gear 309-1 slides on the ratchet gear 308-2 without driving, meanwhile, the fourth pawl 307-4 arranged on the fourth bevel gear 309-2 is meshed with the second ratchet gear 308-2 to drive the transmission shaft 312 to rotate forwards, and the transmission shaft 312 drives the rear wheel to roll forwards through the variable speed transmission mechanism to enable the bicycle to advance. Thus, the left pedal 311-1 and the right pedal 311-2 are alternately pedaled forwards to reciprocate within a certain angle, and the bicycle can be continuously driven to move forwards. The seat can move back and forth, and the angles of the backrest and the headrest can be adjusted, so that different sitting postures can be conveniently changed. Under the condition that the steering effect is not influenced, the handle shaft of the steering mechanism can be stretched and stretched, and the front and rear inclination angles can be adjusted at will so as to meet different riding posture requirements.

The bicycle driving mechanism provided by the invention has a reasonable and novel structure, can randomly switch pedaling modes and randomly change various riding postures in the riding process, can improve the riding experience of riders, and enables the riders to be full of fun in riding; because the bicycle driving mechanism adopts a reciprocating pedaling driving mode, compared with the traditional circular motion pedaling mode, the bicycle driving mechanism has the advantages that the range of the up-and-down motion of the feet and the legs is smaller, a wide and comfortable seat can be equipped, the leg force generation is not influenced even if the bicycle driving mechanism adopts a lying riding posture, the riding comfort is greatly improved, the bicycle driving mechanism also has the characteristics of high transmission efficiency, no driving force generation dead point, strong climbing capability and the like, the comfort is high, fatigue is not easy to generate, the endurance mileage is favorably improved, and the bicycle driving mechanism is particularly suitable for long-distance riding; this application simple structure, the practicality is strong, and easy operation is worth promoting.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.

Claims

1. A bicycle drive mechanism, comprising: the driving mechanism is a double-pedaling driving mechanism;

the driving mechanism comprises a rear chain wheel (301-1), a front chain wheel (301-2) and a transmission shaft (312), wherein the rear chain wheel (301-1) and the front chain wheel (301-2) are rotatably arranged on a bicycle bracket (1) through bearings, the transmission shaft (312) is horizontally and rotatably arranged on the bracket (1), a chain (302) is connected between the rear chain wheel (301-1) and the front chain wheel (301-2), the chain (302) is provided with a left pedal (303-1) and a right pedal (303-2), a left sliding block (4-1) is arranged below the left pedal (303-1), a right sliding block (4-2) is arranged below the right pedal (303-2), a left guide rail (2-1) is arranged below the left sliding block (4-1), a right guide rail (2-2) is arranged below the right sliding block (4-2), the left guide rail (2-1) and the right guide rail (2-2) are respectively arranged on the bracket (1), a first bevel gear (306-2) and a second bevel gear (306-2) are arranged at the bottom end of the chain wheel (301-2), the second bevel gear (306-1) and the third bevel gear (306-2) are arranged on the transmission shaft (312) through bearings, a first pawl (307-1) and a second pawl (307-2) are respectively arranged on inner end surfaces of the second bevel gear (306-1) and the third bevel gear (306-2), a first ratchet gear (308-1) is arranged on the surface of the transmission shaft (312), the first pawl (307-1) and the second pawl (307-2) are respectively matched with the first ratchet gear (308-1) independently, a fourth bevel gear (309-1) and a fifth bevel gear (309-2) are further arranged on the transmission shaft (312) through bearings, a sixth bevel gear (310) is connected between the fourth bevel gear (309-1) and the fifth bevel gear (309-2) in a meshing transmission mode, the sixth bevel gear (310) is arranged on the pedal bracket (1) through bearings, a left pedal rod (313) and a right pedal rod (313-2) are respectively and a right pedal rod (313-311) and a left pedal rod (313-2) are respectively fixedly connected with the fourth bevel gear (309-1) and the fifth bevel gear (309-2), a second ratchet gear (308-2) is arranged on the transmission shaft (312) between the fourth bevel gear (309-1) and the fifth bevel gear (309-2), and a third pawl (307-3) and a fourth pawl (307-4) which are matched with the second ratchet gear (308-2) are respectively arranged on the opposite inner end surfaces of the fourth bevel gear (309-1) and the fifth bevel gear (309-2);

when the bicycle is ridden in a standing mode, two feet are respectively arranged on a left pedal (303-1) and a right pedal (303-2), when the left pedal (303-1) is pedaled backwards by the left foot, a chain (302) is pulled to drive a front chain wheel (301-2) at the front end to rotate anticlockwise and drive the right pedal (303-2) to move forwards, when the right pedal (303-2) is pedaled backwards by the right foot, the chain (302) is pulled to drive the front chain wheel (301-2) at the front end to rotate clockwise and drive the left pedal (303-1) to move forwards, and the bicycle can be continuously driven to move forwards by pedalling the left pedal (303-1) and the right pedal (303-2) backwards alternately;

when the bicycle is ridden on the seat, two feet are placed on the left pedal (311-1) and the right pedal (311-2), and the two feet alternately pedal the left pedal (311-1) and the right pedal (311-2) forwards to reciprocate within a certain angle, so that the bicycle can be continuously driven to move forwards.

2. A bicycle drive mechanism as defined in claim 1, wherein: the first pawl (307-1), the second pawl (307-2), the third pawl (307-3) and the fourth pawl (307-4) are all arranged in the same direction, and the first ratchet gear (308-1) and the second ratchet gear (308-2) are also arranged in the same direction.