CN107344591A

CN107344591A - A kind of bicycle

Info

Publication number: CN107344591A
Application number: CN201710484716.7A
Authority: CN
Inventors: 李钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-23
Filing date: 2017-06-23
Publication date: 2017-11-14

Abstract

In order to solve a kind of disclosed up and down reciprocatingly pedal-type bicycle, the disadvantages mentioned above of the patent application of Application No. 2017100141840, the present invention provides a kind of bicycle, using to a left side, right pedal, which is alternately back and forth trampled, can produce continuous pedal force output, it is high with pedal force utilization rate, physical consumption can be greatly lowered, trample no dead angle, the angle that readily angle can be trampled by adjustment and control the reciprocal alternatively swinging of pedal arm exports to obtain bigger pedal force, also conveniently can carry out backward, the phenomenon of wheel locked will not be produced, with convenience of riding, it is simple in construction, outward appearance change is small, it is easy to the advantages that bicyclist receives.

Description

A kind of bicycle

Technical field

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

Background technology

The basic structure of existing bicycle be installed with the both ends of the axis of cycle frame bottom pedal arm and Pedal, pedal is trampled by the circumferential cycle of bicyclist's both feet and drives the sprocket wheel on axis to rotate, and pass through chain-driving rear portion Sprocket wheel on wheel is rotated to promote bicycle to advance forward, has advantages of simple structure and simple, the trip to people brings pole Big convenience.

But there is also larger shortcoming, due to needing 180 ° of settings between two pedal arms, when riding, it is necessary to which bicycle will be first After having certain speed, two pedals can just cross top dead centre and lower dead center forms circular motion, and completion is smoothly trampled relatively Power exports, and only crosses when stepping on forward in the angular range of about 100 ° of pedal after top dead centre and can just have pedal force output, And because the angle of most of pedal force be not easy to adjust to close to the cylindrical tangential direction of sprocket wheel come formed it is bigger trample rotating torque, Only about 50 ° of angular range can produce it is larger trample rotating torque, remaining 260 ° of angular turn substantially flog a dead horse, and It is tight so as to cause pedal force because its pedal power is smaller in the acting angle of each circle and must rotate one week and could do work once Waste, and limited by human body both legs move distance and pedal minimum ground clearance again, the design length of its pedal arm can only limit System within the specific limits, can not form bigger rotating torque, when ultimately causing big bicyclist's physical consumption when riding, upward slope Arduously, operation is heavy, a kind of disclosed up and down reciprocatingly pedal-type bicycle, the patent application of Application No. 2017100141840, Intact solves above mentioned problem, but there is also the phenomenon that wheel locked can be produced during reversing, have impact on the normal of bicycle makes With.

The content of the invention

In order to solve a kind of disclosed up and down reciprocatingly pedal-type bicycle, the patent application of Application No. 2017100141840 Disadvantages mentioned above, the present invention provides a kind of bicycle, continuous pedal force can be produced using alternately back and forth being trampled to left and right pedal Output, have pedal force utilization rate high, physical consumption can be greatly lowered, trample no dead angle, readily can be trampled by adjustment Angle and the angle of the control reciprocal alternatively swinging of pedal arm export to obtain bigger pedal force, conveniently can also carry out backward, no The phenomenon of wheel locked can be produced, has and rides conveniently, simple in construction, outward appearance change is small, is easy to the advantages that bicyclist receives.

According to a kind of bicycle provided by the present invention, inner sleeve is provided with the steel pipe of cycle frame axis, in inner sleeve Inside is provided with left axle and right axis, wherein left axle is rigidly connected with left shaft sleeve, left axle is passed through and is fixed in vehicle frame One end of left end cap on axle steel pipe is installed with pedal arm, and the other end is installed with bevel gear, on left shaft sleeve Provided with the arc-shaped slot parallel to axial cross section, the middle angular wheel shaft provided with rotatable middle bevel gear leads to through arc Groove is put in being fixed on, and is inside enclosed in the steel pipe of vehicle frame axis and is set in coaxial circumferential slippage, same with right axis outside right axis Axle is provided with sprocket sleeve, and it passes through the one end for the right end cap being fixed on vehicle frame axis steel pipe to be installed with sprocket wheel, the other end Ratchet is provided between left shaft sleeve, is installed with pedal arm in one end of right axis, the other end is installed with umbrella tooth Wheel, and is provided with ratchet between right axis and sprocket sleeve, left shaft bevel gear and shaft bevel gear in the right side by with middle umbrella tooth Take turns engagement can backwards rotation each other, be provided between the steel pipe of inner sleeve and cycle frame axis it is orientable in circumferencial direction and Can monodirectional locking ratchet mechanism, when trampling forward, inner sleeve by trample direction rotate to setting position and and cycle frame The steel pipe locking of axis, in reversing, inner sleeve is rotated with the unblock of the steel pipe of cycle frame axis so that inner sleeve by inverse direction of trampling The normal rotation in the steel pipe of cycle frame axis.

According to a kind of bicycle provided by the present invention, in order to more laborsaving, smooth in reversing, in inner sleeve and bicycle Bearing is provided between the steel pipe of vehicle frame axis.

According to a kind of bicycle provided by the present invention, to facilitate installation, between inner sleeve and cycle frame axis Bearing be arranged on the both ends of inner sleeve.

According to a kind of bicycle provided by the present invention, described ratchet mechanism may be set to：Put inside provided with bayonet socket, It is fast that the unidirectional locking card being engaged with bayonet socket is provided with the steel pipe of cycle frame axis.

It should be noted that：Background technology Steel pipe is provided with unidirectional locking and blocks fast setting, and bayonet socket can be also provided with the steel pipe of cycle frame axis, is put inside It is fast provided with unidirectional locking card,

Operation logic is as follows：Turned counterclockwise by the rigidly connected left axle of pedal arm therewith when left foot tramples downwards left pedal It is dynamic, due to left shaft bevel gear with it is right in shaft bevel gear can backwards rotation each other by being engaged with middle bevel gear so that in the right side Axle rotates clockwise drive and moved up therewith by the rigidly connected right pedal of pedal arm,（Now at the ratchet on right axis In open state clockwise）, while left axle rotates counterclockwise, pass through spine with the rigidly connected left shaft sleeve of left axle Wheel（Now ratchet is in locking state counterclockwise）Sprocket sleeve and the sprocket wheel being fixedly mounted on sprocket sleeve is driven together to turn Dynamic, sprocket wheel is rotated by chain-driving bicycle rear sprocket wheel, promotes bicycle to move ahead, when left pedal is trampled downwards to certain angle After degree, conversion is trampled downwards to trampling right pedal, rigidly connected by pedal arm therewith when right crus of diaphragm tramples right pedal downwards Right axis rotates counterclockwise, because shaft bevel gear in the right side and left shaft bevel gear can be reverse each other by being engaged with middle bevel gear Rotate so that left axle rotates clockwise drive and moved up therewith by the rigidly connected left pedal of pedal arm（It is now left Ratchet on shaft sleeve is in open state clockwise）, while right axis rotates counterclockwise, right axis passes through ratchet（This When ratchet be in locking state counterclockwise）Sprocket sleeve and the sprocket wheel being fixedly mounted on sprocket sleeve is driven together to rotate, chain Wheel is rotated by chain-driving bicycle rear sprocket wheel, promotes bicycle to move ahead, and and so on completes continuous pedal force output, When promoting reversing, because of the ratchet lock in rear car wheel sprocket, rear wheel passes through chain-driving and pedal against the rotation of preceding line direction The rigidly connected sprocket wheel of arm rotates against preceding line direction, is rigidly connected so as to be driven by the bevel gear of engagement with middle angular wheel shaft Inner sleeve rotating Vortex, because monodirectional locking card is in released state soon so that bicycle is able to facilitate backward, when needing to fore rider During row, sprocket wheel rigidly connected with pedal arm and the bevel gear by engaging is driven to drive and middle bevel gear by trampling pedal The rigidly connected inner sleeve rotation of axle, after inner sleeve is rotated to set position, because monodirectional locking card is in the lock state soon, makes Obtain and rotated with the rigidly connected sprocket wheel of pedal arm by the sprocket wheel on chain-driving bicycle rear wheel, so as to be rotated with motor car wheel Bicycle is promoted to move ahead.

It should be noted that：Left and right central axis direction described above is come true with the right central axis direction visual angle in left axial direction Fixed left and right axis is rotationally clockwise or rotated in an anti-clockwise direction.

A kind of the advantages of bicycle of the present invention, is：It is simple in construction, it is low to instead of existing bicycle pedal force transmission efficiency Pedal circular motion, have pedal force utilization rate high, physical consumption can be greatly lowered, trample no dead angle, can facilitate to pusher OK, the phenomenon of wheel locked will not be produced, is ridden conveniently, outward appearance change is small, is easy to the advantages that bicyclist receives.

Brief description of the drawings

Pass through further describing to elaborate the design and application of the present invention to embodiment below in conjunction with the accompanying drawings.

Fig. 1 is a kind of overall schematic of bicycle embodiment of the present invention

Fig. 2 is the schematical sectional view splitted along Fig. 1 line A-A

Fig. 3 is the schematical sectional view splitted along Fig. 2 line B-B

Fig. 4 is Fig. 3 K direction views

Fig. 5 is Fig. 1 A1 partial enlarged view

Fig. 6 is Fig. 2 A2 partial enlarged view

Fig. 7 is Fig. 3 A3 partial enlarged view

Embodiment：

Now, will be described according to the embodiment of the present invention, its example is illustrated in the accompanying drawings.Hereinafter, with reference to the accompanying drawings Embodiment is described, to explain the present general inventive concept.

As shown in Figures 1 to 4,

According to a kind of bicycle provided by the present invention, inner sleeve 5 is provided with the steel pipe 3 of the axis of cycle frame 100, in inner sleeve 5 inside are provided with left axle 1 and right axis 10, wherein left axle 1 is rigidly connected with left shaft sleeve 14, left axle 1, which passes through, to be fixed The forwarding voice is sent to first object terminal Wheel 18, the arc-shaped slot 20 parallel to axial cross section is provided with left shaft sleeve 14, provided with rotatable middle bevel gear 17 middle angular wheel shaft 4 is fixed in inner sleeve 5 through arc-shaped slot 20 by screw 16, steel of the inner sleeve 5 in the axis of vehicle frame 100 Pipe 3 is interior to be set in coaxial circumferential slippage, is coaxially provided with sprocket sleeve 7 with right axis 10 outside right axis 10, it passes through and is fixed on One end of right end cap 8 on the axis steel pipe 3 of vehicle frame 100 is installed with sprocket wheel 12, is set between the other end and left shaft sleeve 14 There is ratchet 6, pedal arm 101 is installed with one end of right axis 10, the other end is installed with bevel gear 15, and in the right side Be provided with ratchet 11 between axle 10 and sprocket sleeve 7, left shaft bevel gear 18 with it is right in shaft bevel gear 15 by with middle bevel gear 17 engagements can backwards rotation each other, being provided between the steel pipe 3 of inner sleeve 5 and the axis of cycle frame 100 can determine in circumferencial direction Position and can monodirectional locking ratchet, when trampling forward, inner sleeve 5 by trample direction rotate to setting position and and vehicle The steel pipe 3 of the axis of frame 100 locks, and in reversing, inner sleeve 5 rotates steel pipe 3 with the axis of cycle frame 100 by inverse direction of trampling Unblock so that the normal rotation in the steel pipe 3 of the axis of cycle frame 100 of inner sleeve 5.

As shown in Fig. 2 in order to more laborsaving, smooth in reversing, in inner sleeve 5 and the steel pipe 3 of the axis of cycle frame 100 Between be provided with bearing 13.

As shown in Fig. 2 to facilitate installation, the bearing between the steel pipe 3 of inner sleeve 5 and the axis of cycle frame 100 is set Put at the both ends of inner sleeve 5.

As shown in Fig. 2 smooth in order to operate, left shaft sleeve 14 and sprocket sleeve 7 are provided with bearing at the end cap of left and right.

Such as Fig. 3, shown in 7, installation, maintenance, are provided with bayonet socket 21, in the axis of cycle frame 100 in inner sleeve 5 for convenience Steel pipe 3 be provided with the unidirectional locking card fast 22 that is engaged with bayonet socket 21, locking card fast 22 is around being arranged on the axis of vehicle frame 100 Steel pipe 3 on axle 23 rotate, and by spring 24 be pressed on inner sleeve 5 it is cylindrical on.

Operation logic is as follows：Left foot is trampled downwards inverse by the rigidly connected left axle 1 of pedal arm 101 therewith during left pedal Hour hands rotate, due to left shaft bevel gear 18 with shaft bevel gear 15 in the right side by engaging and can inversely turn each other with middle bevel gear 17 It is dynamic so that right axis 10 rotates clockwise drive and moved up therewith by 101 rigidly connected right pedal of pedal arm,（Now Ratchet 11 on right axis is in open state clockwise）, while left axle 1 rotates counterclockwise, connect with the left rigidity of axle 1 The left shaft sleeve 14 connect passes through ratchet 6（Now ratchet 6 is in locking state counterclockwise）Drive sprocket sleeve 7 and be fixedly mounted Sprocket wheel 12 on sprocket sleeve 7 is together rotated, and sprocket wheel 12 is rotated by chain-driving bicycle rear sprocket wheel, promotes bicycle Move ahead, after left pedal is trampled downwards to certain angle, conversion is trampled downwards to trampling right pedal, and right crus of diaphragm is trampled downwards in right crus of diaphragm Rotated counterclockwise therewith by the rigidly connected right axis 10 of pedal arm 101 when pedaling, due to shaft bevel gear 15 in the right side and left axle Bevel gear 18 can backwards rotation each other by being engaged with middle bevel gear 17 so that left axle 1 rotates clockwise drive and led to therewith 101 rigidly connected left pedal of pedal arm is crossed to move up（Now the ratchet 6 on left shaft sleeve 14 is in open shape clockwise State）, while right axis 10 rotates counterclockwise, right axis passes through ratchet 11（Now ratchet 11 is in locking state counterclockwise） Sprocket sleeve 7 and the sprocket wheel 12 being fixedly mounted on sprocket sleeve 7 is driven together to rotate, sprocket wheel 12 passes through chain-driving bicycle Rear wheel sprocket rotates, and promotes bicycle to move ahead, and continuous pedal force output is and so on completed, when promoting reversing, because of rear car Ratchet lock in wheel sprocket, rear wheel pass through chain-driving and 101 rigidly connected sprocket wheel of pedal arm against the rotation of preceding line direction 12 rotate against preceding line direction, are revolved in the same direction with the rigidly connected inner sleeve 5 of middle angular wheel shaft 4 so as to be driven by the bevel gear of engagement Turn, the slope because unidirectionally blocking fast 22 skids off bayonet socket 21 being contacted with bayonet socket 21, in non-locking state so that bicycle is able to Facilitate backward, when needing to ride forward, sprocket wheel 12 rigidly connected with pedal arm 101 is driven and by nibbling by trampling pedal The bevel gear of conjunction drives to be rotated with the rigidly connected inner sleeve 5 of middle angular wheel shaft 4, after inner sleeve 5 is rotated to set position, Because unidirectionally block fast 22 slip into bayonet socket 21 after, card fast 22 facade contacted with bayonet socket 21, be in the lock state so that with pedal arm 101 rigidly connected sprocket wheels are rotated by the sprocket wheel on chain-driving bicycle rear wheel, so that with motor car wheel rotation forces certainly Driving moves ahead.

Claims

1. a kind of bicycle, being included in the steel pipe of cycle frame axis and being provided with inner sleeve, left axle and the right side are provided with inner sleeve Axis, wherein left axle is rigidly connected with left shaft sleeve, left axle passes through the left end cap that is fixed on vehicle frame axis steel pipe One end is installed with pedal arm, and the other end is installed with bevel gear, is provided with left shaft sleeve parallel to axially transversal The arc-shaped slot in face, the middle angular wheel shaft provided with rotatable middle bevel gear through arc-shaped slot be fixed in put, it is interior It is enclosed in the steel pipe of vehicle frame axis and is set in coaxial circumferential slippage, sprocket sleeve is coaxially provided with right axis outside right axis, its Sprocket wheel is installed with through the one end for the right end cap being fixed on vehicle frame axis steel pipe, is set between the other end and left shaft sleeve There is ratchet, pedal arm is installed with one end of right axis, the other end is installed with bevel gear, and in right axis and sprocket wheel Ratchet is provided between axle sleeve, left shaft bevel gear can inversely turn each other with shaft bevel gear in the right side by being engaged with middle bevel gear It is dynamic, it is characterised in that：It is provided between the steel pipe of inner sleeve and cycle frame axis orientable and can be unidirectional in circumferencial direction The ratchet of locking, when trampling forward, inner sleeve by trample direction rotate to setting position and with the steel pipe of cycle frame axis Lock, in reversing, inner sleeve is rotated with the unblock of the steel pipe of cycle frame axis so that interior be enclosed on voluntarily by inverse forward direction of trampling Normal rotation in the steel pipe of vehicle carriage axis.

A kind of 2. bicycle as claimed in claim 1, it is characterised in that：Between the steel pipe of inner sleeve and cycle frame axis Provided with bearing.

A kind of 3. bicycle as claimed in claim 1, it is characterised in that：Bearing between inner sleeve and cycle frame axis It is arranged on the both ends of inner sleeve.

A kind of 4. bicycle as claimed in claim 1, it is characterised in that：Described monodirectional locking ratchet by putting setting inside Bayonet socket and formed soon with the unidirectional locking card being arranged on cycle frame axis steel pipe of bayonet fittings.

A kind of 5. bicycle as claimed in claim 4, it is characterised in that：Locking card surrounds soon to be arranged on vehicle frame axis steel pipe Axle rotation, and by spring compression on inner sleeve is cylindrical.