阅读说明：本技术 一种自行车 (A kind of bicycle ) 是由 张新金 于 2019-10-10 设计创作，主要内容包括：本发明提供了一种自行车,属于自行车技术领域。它解决了现有的自行车结构稳定性差的问题。本自行车,包括车架和驱动轮,车架侧部连接有曲轴盘,曲轴盘的侧部连接有踏板,自行车还包括一传动杆以及传动轴一、传动轴二和传动轴三,传动杆设置于车架的侧部且传动杆的一端活动连接在曲轴盘的偏心位置上,传动杆的另一端垂直地连接在传动轴一上,传动轴一和传动轴二之间通过齿轮副一传动连接,传动轴二和传动轴三之间通过齿轮副二传动连接,传动轴一和传动轴三之间还通过齿轮副三传动连接,传动轴一上的两个齿轮分别通过方向相反的单向传动结构连接在传动轴一上,传动轴三通过链轮和链条与所述驱动轮传动连接。本自行车具有稳定性好的优点。(The present invention provides a kind of bicycles, belong to technical field of bicycles.It solves the problems, such as that existing bicycle structure stability is poor.This bicycle, including vehicle frame and driving wheel, frame side is connected with crankshaft disk, the side of crankshaft disk is connected with pedal, bicycle further includes a drive rod and transmission shaft one, transmission shaft two and transmission shaft three, drive rod is set to the side of vehicle frame and one end of drive rod and is movably connected on the eccentric position of crankshaft disk, the other end of drive rod is vertically connected on transmission shaft one, it is sequentially connected between transmission shaft one and transmission shaft two by gear pair one, it is sequentially connected between transmission shaft two and transmission shaft three by gear pair two, it is also sequentially connected by gear pair three between transmission shaft one and transmission shaft three, two gears on transmission shaft one are connected on transmission shaft one by contrary single-direction transmission structure respectively, transmission shaft three is sequentially connected by sprocket wheel and chain and the driving wheel.This bicycle has the advantages that stability is good.)

1. a kind of bicycle, including vehicle frame (1) and driving wheel (2), vehicle frame (1) side is connected with the crankshaft disk being vertically arranged (3), the side of the crankshaft disk (3) is connected with the pedal (4) that the crankshaft disk (3) can be driven to circumferentially rotate, which is characterized in that Bicycle further includes a drive rod (5) and the transmission shaft one (6) being rotatably mounted on the vehicle frame (1), transmission shaft Two (7) and transmission shaft three (8), the drive rod (5) are set to one end activity of the side of the vehicle frame (1) and drive rod (5) It is connected on the eccentric position of corresponding crankshaft disk (3), the other end of the drive rod (5) is vertically connected to the transmission shaft On one (6), the drive rod (5) can alternately swing up and down when the crankshaft disk (3) circumferentially rotate and drive the transmission Around own axis, the transmission shaft one (6), transmission shaft two (7) and transmission shaft three (8) are arranged in parallel axis one (6), described It is sequentially connected between transmission shaft one (6) and transmission shaft two (7) by gear pair one (9), the transmission shaft two (7) and transmission shaft three (8) it is sequentially connected between by gear pair two (10), also passes through gear pair between the transmission shaft one (6) and transmission shaft three (8) Three (11) are sequentially connected, and two gears on the transmission shaft one (6) pass through contrary single-direction transmission structure respectively and connect On transmission shaft one (6), the transmission shaft three (8) is sequentially connected by sprocket wheel (12) and chain (13) and the driving wheel (2).

2. bicycle according to claim 1, which is characterized in that the side of described drive rod (5) one end, which is run through, to be offered Long stripes through hole (14), crankshaft disk (3) side have the driving column (15) of protrusion, and the driving column (15) is arranged in described It can move back and forth in through-hole (14) and along the length direction of the through-hole (14).

3. bicycle according to claim 2, which is characterized in that the crankshaft disk (3) includes fission in the form of annular discs One (16) and seperated two (17), described seperated one (16) and two (17) of fission are coaxially set, the driving column (15) perpendicular to Seperated one (16) setting, and driving column (15) is connected with seperated one (16) and seperated two (17) respectively, the one of the drive rod (5) End is protruded between described seperated one (16) and seperated two (17) and is set in the outside of the driving column (15).

4. bicycle according to claim 1 or 2 or 3, which is characterized in that the single-direction transmission structure includes one way engagement Ratchet and pawl.

5. bicycle according to claim 1 or 2 or 3, which is characterized in that the single-direction transmission structure includes one-way clutch Device.

Technical field

The invention belongs to technical field of bicycles, are related to a kind of bicycle.

Background technique

With being continuously increased for car ownership, the tail gas pollution on the environment of automobile discharge is also got worse.Together When, parking stall is also increasingly nervous, it is difficult to meet the needs of automobile is growing.Bicycle because it is economical, conveniently, flexibly, without dirt Dye and stop freely, start constantly to be concerned by people, and bicycle will necessarily become indispensable in people's daily life Few walking-replacing tool.However, current bicycle cooperates simple sprocket wheel chain structure to drive only by traditional foot pedal Motor car wheel forward, once meeting the needs such as abrupt slope compared with the road conditions of large driving force, will cause biggish inconvenience to the trip of people.

For this purpose, people devise a kind of reciprocal bicycle of double-crank connecting rod and applied Chinese patent (its application No. is: 201410733747.8；Its notification number are as follows: CN104527899B), which includes double-crank connecting rod Mechanism, the drag link include fixed chain wheels, chain, sprocket wheel, sprocket shaft, chain pulley seat, eccentric wheel, camshaft, vehicle Frame connector, central axis, connecting rod and lever.In use, user can trample one end of lever, by lever, connecting rod, eccentric wheel, The successively transmission of sprocket wheel, chain and fixed chain wheels, imparts power to the wheel of bicycle, to drive bicycle to advance, compares For traditional bicycle, which utilizes the labor-saving structure of lever, greatly reduces bicycle The demand of driving force improves biggish convenience for the trip of bicycle.

Because considering the factor of laborsaving lever, it is another that the length that lever can trample the end to hinge joint of one end is greater than lever It holds to the length of hinge joint.But the above-mentioned reciprocal bicycle of double-crank connecting rod is when in use, needs the both feet of user along vertical side To the end for trampling lever up and down, then user applies the active force of moment to the end of the longer one end of lever for a long time, easily to thick stick The injury that bar causes bending even to fracture, and one end that lever Gong is trampled is not fixed, will lead to hinge joint pine after long-time service It moves so that one end that lever is not connected with can freely swing in the horizontal direction, there is a problem of structural stability difference.

Summary of the invention

It is to be solved the purpose of the present invention is in view of the above-mentioned problems existing in the prior art, proposing a kind of bicycle Technical problem is how to provide a kind of bicycle that stability is good.

Object of the invention can be realized by the following technical scheme:

A kind of bicycle, including vehicle frame and driving wheel, the frame side are connected with the crankshaft disk being vertically arranged, the song The side of reel is connected with the pedal that the crankshaft disk can be driven to circumferentially rotate, which is characterized in that bicycle further includes a transmission Bar and the transmission shaft one being rotatably mounted on the vehicle frame, transmission shaft two and transmission shaft three, the drive rod setting In the side of the vehicle frame and one end of drive rod is movably connected on the eccentric position of corresponding crankshaft disk, the drive rod The other end is vertically connected on the transmission shaft one, and the drive rod can be alternately upper and lower when the crankshaft disk circumferentially rotates It swings and drives the transmission shaft one around own axis, the transmission shaft one, transmission shaft two and transmission shaft three is parallel sets It sets, is sequentially connected between the transmission shaft one and transmission shaft two by gear pair one, between the transmission shaft two and transmission shaft three It is sequentially connected by gear pair two, is also sequentially connected by gear pair three between the transmission shaft one and transmission shaft three, the biography Two gears on moving axis one are connected on transmission shaft one by contrary single-direction transmission structure respectively, the transmission shaft three It is sequentially connected by sprocket wheel and chain and the driving wheel.

This bicycle in use, user can pushes pedals to drive crankshaft disk to circumferentially rotate, by crankshaft disk drive prejudicially The drive rod being connected on crankshaft disk is up and down reciprocatingly swung, and then is driven and one circumferential turn of drive rod transmission shaft connected vertically It is dynamic.Because the gear that is connect on gear pair one and gear pair three with transmission shaft one respectively by contrary single-direction transmission structure with Transmission shaft one connects, then gear pair one and gear pair three will not be driven simultaneously, in one forward direction of transmission shaft or rotates backward When, only the rotational power of transmission shaft one is transmitted to transmission shaft three by gear pair one or gear pair three.Pedal will be stepped on, and will be passed through Crankshaft disk drives the drive rod bottom to be set as rotating forward, then drive rod can drive transmission shaft one to rotate forward.At this point, gear pair Single-direction transmission structure at one combines, and by pitch wheel on gear pair one, transmission shaft one is rotated forward transmitting To transmission shaft two, transmission shaft two is driven to rotate backward, the single-direction transmission structure at gear pair three separates, the tooth at gear pair three Wheel idle running, is transmitted without power.Counter-rotational transmission shaft two is again by gear pair two by power transmission to transmission shaft three Place simultaneously drives transmission shaft three to rotate forward, finally, passing through the structure of sprocket wheel and chain, drives driving wheel forward direction to turn by transmission shaft three It is dynamic, realize the advance of bicycle.

Conversely, putting on drive rod, transmission shaft one is driven to rotate backward, the single-direction transmission structure at gear pair one disengages, tooth Single-direction transmission structure at wheel set three combines, and by the transmission of gear pair three, the power of transmission shaft one is transferred to transmission shaft three Place simultaneously drives transmission shaft three to rotate forward, and the same structure for passing through sprocket wheel and chain drives driving wheel forward direction to turn by transmission shaft three It is dynamic, realize the advance of bicycle.

In this cyclery into the process, the process that can pedal stepped on and be lifted passes through gear pair one, gear pair respectively Two and the transmission of gear pair three be transferred at driving wheel and driving wheel driven just to march forward, i.e., only can will by a drive rod Pedal is stepped on and the power that lifts is transmitted at driving wheel and carries out the driving that moves ahead, and transmission efficiency is high, reduces setting for drive rod It sets, avoids the interference of structure, improve the stability of bicycle transmission structure.

During driving herein, connect respectively with crankshaft disk and transmission shaft one for transmitting the both ends of drive rod of power It connects, realizes the connection at drive rod both ends, avoid the case where drive rod one end does not fix and freely swings, ensure that The stability of drive mechanism.Meanwhile the driving force of user is dynamic to realize by the crankshaft disk being rotatably connected on vehicle frame from pedal Power transmitting, so that the radial forces in the instantaneous force that user applies are directly delivered on firm vehicle frame, it is only circumferential to transport Dynamic driving force is transferred on discoid crankshaft disk, is indirectly transferred on drive rod again later, avoid drive rod by Instantaneous force and the case where bend or even fracture, further improve the stability of structure.

In above-mentioned bicycle, the side of described drive rod one end, which is run through, offers long stripes through hole, the crankshaft disk Side has a driving column of protrusion, the driving column be arranged in the through-hole and can along the through-hole length direction back and forth It is mobile.Transmission is converted by circumferentially rotating for crankshaft disk by the cooperation of long stripes through hole and cylindrical driving column to realize The up and down reciprocatingly swing of bar, structure is simpler, and stability is higher.

In above-mentioned bicycle, the crankshaft disk includes fission one and seperated two, described seperated one in the form of annular discs It is coaxially set with fission two, the driving column is arranged perpendicular to fission one, and driving column is solid with seperated one and fission two respectively Even, one end of the drive rod is protruded between described seperated one and fission two and is set in the outside of the driving column.It is divided into two Drive rod is coated on centre by partial crankshaft disk, and the two sides of drive rod are limited and protected, avoid drive rod with it is other It is interfered between structure.

In above-mentioned bicycle, the single-direction transmission structure includes the ratchet and pawl of one way engagement.

In above-mentioned bicycle, the single-direction transmission structure includes one-way clutch.

Compared with prior art, this bicycle has the advantage that

1, the power that a drive rod only being arranged can step on pedal and lift drives at driving wheel, drives driving Wheel constantly advances, and power transmission efficiency is high.

2, the transmitting of power only passes through a drive rod and is transmitted, and simplifies structure, avoids the multiple drive rods of setting Situation more than existing constructive interference ensure that the stability that bicycle uses.

3, transmission, transmission efficiency and high transmission accuracy are realized by three groups of gear pairs, are not easy to skid, be further improved The stability of transmission.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of this bicycle.

Fig. 2 is the structural schematic diagram at another visual angle of this bicycle.

Fig. 3 is the structural schematic diagram at this bicycle crankshaft disk.

In figure, 1, vehicle frame；2, driving wheel；3, crankshaft disk；4, pedal；5, drive rod；6, transmission shaft one；7, transmission shaft two； 8, transmission shaft three；9, gear pair one；10, gear pair two；11, gear pair three；12, sprocket wheel；13, chain；14, through-hole；15, it is driven Column；16, fission one；17, fission two.

Specific embodiment

Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.

As shown in Figure 1-Figure 3, this bicycle includes vehicle frame 1 and driving wheel 2, and 1 two sides of vehicle frame, which are respectively connected with, to be vertically arranged Crankshaft disk 3, the side of two crankshaft disks 3 is respectively connected with the pedal 4 that energy band dynamic crankshaft disk 3 circumferentially rotates, and two pedals 4 are with song It is symmetric centered on the axis of reel 3.It connects and can rotate synchronously by connecting rod between two crankshaft disks 3.

Bicycle further includes the drive rod 5 and the transmission that is rotatably mounted on vehicle frame 1 in flat elongated rod shape Axis 1, transmission shaft 27 and transmission shaft 38.Drive rod 5 is set to the side of vehicle frame 1 and one end of drive rod 5 and is movably connected in On the eccentric position of corresponding crankshaft disk 3, the other end of drive rod 5 is vertically connected on one 6 lateral surface of transmission shaft.Drive rod 5 can alternately swing up and down when crankshaft disk 3 circumferentially rotates and drive transmission shaft 1 around own axis.

Transmission shaft 1, transmission shaft 27 and transmission shaft 38 are in elongated rod shape and arranged in parallel, transmission shaft 1 and biography It is sequentially connected between moving axis 27 by gear pair 1, is connected between transmission shaft 27 and transmission shaft 38 by the transmission of gear pair 2 10 It connects, is also sequentially connected by gear pair 3 11 between transmission shaft 1 and transmission shaft 38.Wherein, gear pair 1 and gear pair three Two gears being located on transmission shaft 1 in 11 are connected on transmission shaft 1 by contrary single-direction transmission structure respectively, Transmission shaft 38 is sequentially connected by the structure and driving wheel 2 of sprocket wheel 12 and chain 13.In the present embodiment, single-direction transmission structure Ratchet and pawl including one way engagement；Certainly, as needed, existing common one-way clutch also can be selected in single-direction transmission structure Device；12 chain 13 of sprocket wheel is existing drive mechanism on bicycle, is not illustrated here.

Specifically, the side of 5 one end of drive rod has protrusion through long stripes through hole 14,3 side of crankshaft disk is offered Cylindrical driving column 15, driving column 15 is arranged in through-hole 14 and can move back and forth along the length direction of through-hole 14.

Two 3 structures of crankshaft disk are identical, include fission 1 in the form of annular discs and fission 2 17, fission 1 and divide Body 2 17 is coaxially set, and driving column 15 is arranged perpendicular to fission 1, and driving column 15 respectively with seperated 1 and seperated two 17 are connected, and one end of drive rod 5 is protruded between the fission 1 of the crankshaft disk 3 of respective side and fission 2 17 and is set in driving column 15 outside.

This bicycle in use, the both feet of user can trample the pedals 4 of 1 two sides of vehicle frame to drive crankshaft disk 3 to circumferentially rotate, From crankshaft disk 3 by driving the drive rod 5 being prejudicially connected on crankshaft disk 3 up and down reciprocatingly with driving column 15 and through-hole 14 It swings, and then drives and circumferentially rotated with the transmission shaft 1 connected vertically of drive rod 5.

Because the gear being connect on gear pair 1 and gear pair 3 11 with transmission shaft 1 pass through respectively it is contrary unidirectional Drive mechanism is connect with transmission shaft 1, then gear pair 1 and gear pair 3 11 will not be driven simultaneously, transmission shaft 1 just To only the rotational power of transmission shaft 1 is transmitted to transmission shaft three by gear pair 1 or gear pair 3 11 when perhaps rotating backward 8。

Here, for convenience of explanation, the pedal 4 on 1 right side of vehicle frame will be stepped on, and 5 bottom of drive rod is driven by crankshaft disk 3 When direction be set as rotating forward, then drive rod 5 can drive transmission shaft 1 to rotate forward.At this point, the list at gear pair 1 It is combined to drive mechanism, by pitch wheel on gear pair 1, rotating forward for transmission shaft 1 is transferred to transmission At axis 27, transmission shaft 27 is driven to rotate backward, the single-direction transmission structure at gear pair 3 11 separates, the tooth at gear pair 3 11 Wheel idle running, is transmitted without power.Counter-rotational transmission shaft 27 is again by gear pair 2 10 by power transmission to transmission shaft At 38 and transmission shaft 38 is driven to rotate forward, finally, passing through the structure of sprocket wheel 12 and chain 13, is driven and driven by transmission shaft 38 Driving wheel 2 rotates forward, and realizes the advance of bicycle.

Conversely, user steps on left pedal 4, then right-side pedal 4 lifts, and drives and puts on drive rod 5, keeps transmission shaft 1 anti- To rotation, the single-direction transmission structure at gear pair 1 is disengaged, and the single-direction transmission structure at gear pair 3 11 combines, and passes through gear The transmission of pair 3 11, the power of transmission shaft 1 is transferred at transmission shaft 38 and transmission shaft 38 is driven to rotate forward, same logical The structure for crossing sprocket wheel 12 and chain 13 drives driving wheel 2 to rotate forward, realizes the advance of bicycle by transmission shaft 38.

In this cyclery into the process, the process that can pedal 4 stepped on and be lifted passes through gear pair 1, gear respectively The transmission of pair 2 10 and gear pair 3 11 is transferred at driving wheel 2 and driving wheel 2 is driven just to march forward, i.e., only passes through a transmission The power that pedal 4 can be stepped on and be lifted by bar 5, which is transmitted at driving wheel 2, carries out the driving that moves ahead, and transmission efficiency is high, reduces The setting of drive rod 5 avoids the interference of structure, improves the stability of bicycle transmission structure.

Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.