CN105691534A

CN105691534A - Driving mechanism for bicycle or tricycle

Info

Publication number: CN105691534A
Application number: CN201610058343.2A
Authority: CN
Inventors: 何泽江; 何子夜
Original assignee: 何泽江
Current assignee: Chongqing Sunate industry and Trade Co.,Ltd.
Priority date: 2016-01-28
Filing date: 2016-01-28
Publication date: 2016-06-22
Anticipated expiration: 2036-01-28
Also published as: CN105691534B

Abstract

The invention discloses a driving mechanism for a bicycle or a tricycle. A horizontally-arranged left half axle and a right half axle are each rotationally supported on a frame through a bearing, and the axis of the left half axle and the axis of the right half axle are located on the same straight line. A left pedal is fixedly arranged at the left end of the left half axle, the middle portion of the left half axle is sleeved with a left chain wheel through a one-way bearing or a one-way ratchet wheel, and the right end of the left half axle is coaxially and fixedly sleeved with a left bevel gear. The left end of the right half axle is coaxially and fixedly sleeved with a right bevel gear, the middle portion of the right half axle is sleeved with a right chain wheel through a one-way bearing or a one-way ratchet wheel, and a right pedal is fixedly arranged at the right end of the right half axle. The left bevel gear and the right bevel gear can be selectively engaged with or disengaged from the same middle transition bevel gear. The front end of a sliding shaft is fixedly sleeved with the middle transition bevel gear, and the sliding shaft is in sliding fit with an inner hole of a locating sleeve. By means of the driving mechanism, a one-way transmission manner and a common transmission manner can be flexibly switched, and the included angle between the left pedal and the right pedal can be conveniently adjusted according to the height and the leg length of a rider.

Description

A kind of driving mechanism for bicycle or tricycle

Technical field

The present invention relates to a kind of drive mechanism, particularly relate to the drive mechanism being used on bicycle or tricycle。

Background technology

Traditional bicycle or tricycle pedal only forward could advance, and pedal cannot so as to advance backward, and thus relatively elaborate, the physical demands of operator is relatively big, and this defect seems especially prominent when riding slope。

In order to overcome above-mentioned technological deficiency, Chinese patent ZL201110378950.4 discloses a kind of one-way driving mechanism suitable in bicycle, wheelchair on July 31st, 2013, it is connected to two semiaxis by differential mechanism, every semiaxis is set with sprocket wheel each through unilateral bearing, during operation, no matter forward or backward pedal can allow a wherein semiaxis rotate forward all the time, thus driving the bicycle adopting this one-way driving mechanism or tricycle to advance。

In utilization process, we have found that the not only structure of the drive mechanism disclosed in above-mentioned patent is complicated, manufacture difficulty is big, production cost is high, and no matter bicycle or tricycle all can be made to advance to front or rear pedal, standard bicycle can not be switched to or common drive mode that tricycle adopts, this common drive mode pedal only forward could drive bicycle or tricycle to advance, and pedal cannot so as to advance backward。

Additionally, no matter it is traditional bicycle or tricycle, still the bicycle of above-mentioned one-way driving mechanism is adopted, all there is between the left side and two pedals on the right a fixing angle, this angle cannot adjust according to the height of rider and lower limb length, so may result in rider's operation comfort difference and effort。In order to improve the comfortableness of rider's operation, realize only by the height adjusting medicated cushion at present, not only troublesome poeration, and it is relatively limited to improve effect also ratio。

Summary of the invention

The technical problem to be solved is in that to provide a kind of driving mechanism for bicycle or tricycle, this driving mechanism not only can switch flexibly between single-direction transmission mode and common drive mode, and can adjust the angle between the pedal of left and right limit easily。

Technical scheme is as follows: a kind of driving mechanism for bicycle or tricycle, it is characterized in that: include vehicle frame (1) and slip stick (14), wherein upper bearing (2) rotational support respectively of vehicle frame (1) has a horizontally disposed left half axle (3) and a right axle shaft (4), and the axial line of this left and right half is on the same line；The left end of described left half axle (3) is installed with a left-hand tread plate (5), it is set with a left sprocket wheel (20) by unilateral bearing or single direction ratchet (6) in the middle part of this left half axle, and left half axle (3) right-hand member is coaxially installed with a left angular wheel (7)；Described right axle shaft (4) left end is coaxially installed with a right bevel gear (8), it is set with a right sprocket wheel (9) and the fixed right-hand tread plate (10) of right axle shaft (4) right-hand member by unilateral bearing or single direction ratchet (6) in the middle part of this right axle shaft；

Described left and right bevel gear (7,8) is in the same size, and left and right bevel gear (7,8) can combine with same middle transition bevel gear (11) selectively or depart from；Described middle transition bevel gear (11) is solidly set on sliding axle (12) front end, the endoporus of this sliding axle and positioning sleeve (13) is slidably matched, and can in positioning sleeve before and after sliding, and positioning sleeve (13) is vertical with described left half axle (3), and it is horizontally arranged on described vehicle frame (1)；

Described slip stick (14) is vertically fixed on the axle body of sliding axle (12), this slip stick is located in bar shaped hole, location (13a), this bar shaped location hole (13a) axially offering along described positioning sleeve (13)；The left side wall of described bar shaped hole, location (13a) and right side wall front portion have one group of locating notch (13a ') all vertically, described slip stick (14) can snap in this locating notch, and locating notch on left and right sidewall (13a ') positions the axially staggered setting in hole (13a) along bar shaped。

When this driving mechanism is arranged on bicycle or tricycle, left sprocket wheel (20) is connected respectively through the sprocket wheel that corresponding chain is corresponding with bicycle or tricycle frame rear portion with right sprocket wheel (9), this sprocket wheel is directly sleeved in rotating shaft, and rotating shaft passes through bearings on vehicle frame。Certainly, left sprocket wheel (20) directly can also be fixedly set in left half axle (3), right sprocket wheel (9) is directly sleeved on right axle shaft (4), this left sprocket wheel (20) is connected respectively through the sprocket wheel that corresponding chain is corresponding with bicycle or tricycle frame rear portion with right sprocket wheel (9), in this case sprocket wheel is contained in rotating shaft respectively through unilateral bearing or individual event ratchet sleeve, and rotating shaft passes through bearings on vehicle frame。

Two kinds of use states are had when the present invention uses:

1, when left and right bevel gear (7,8) simultaneously with middle transition bevel gear (11) in conjunction with time, now middle transition bevel gear (11) engages with left and right bevel gear (7,8), existence due to middle transition bevel gear (11), cause that the direction of rotation of left and right bevel gear (7,8) is contrary, one of them bevel gear in left angular wheel, right bevel gear is thus made to rotate forward all the time, bicycle or tricycle thus can be driven all the time to advance, and its operation principle is consistent with the operation principle of one-way driving mechanism described in ZL201110378950.4。

2, when left and right bevel gear (7,8) disengages with middle transition bevel gear (11), now middle transition bevel gear (11) and left and right bevel gear (7,8) are in non-engagement；Now, when rider steps on forward left-hand tread plate (5) and right-hand tread plate (10), bicycle or tricycle will advance, when rider steps on left-hand tread plate (5) and right-hand tread plate (10) backward, bicycle or tricycle would not advance, and this state is identical with the common drive mode that existing bicycle or tricycle adopt。

It should be noted that, during operation rider can forward or after promote slip stick (14), so that middle transition bevel gear (11) combines with left and right bevel gear (7,8) or departs from, so that this case switches neatly between two kinds of use states, thus overcome the problem that one-way driving mechanism described in ZL201110378950.4 can only make bicycle or tricycle advance all the time well；Need middle transition bevel gear (11) and left and right bevel gear (7,8) in conjunction with time, can to the left or have rotation slip stick (14), and make slip stick (14) snap in the locating notch (13a ') of correspondence, thus adjusting the tightness degree of combination。Simultaneously, the present invention adopts the differential mechanism that middle transition bevel gear (11) and left and right bevel gear (7,8) instead of in one-way driving mechanism described in ZL201110378950.4, thus under the premise keeping original function, effectively simplify structure, reduce manufacture difficulty, reduce production cost。

Additionally, this driving mechanism can adjust the angle between left-hand tread plate (5) and right-hand tread plate (10) easily according to the height of rider and lower limb length, first have to during adjustment determine that middle transition bevel gear (11) is with left, right bevel gear (7, 8) disengage, then left-hand tread plate (5) and right-hand tread plate (10) are stepped on backward, now unilateral bearing or single direction ratchet (6) idle running, bicycle or tricycle will not advance, thus can adjust the angle between left-hand tread plate (5) and right-hand tread plate (10) according to the height of rider and lower limb length, this angle can change within 0 ° of-180 ° of scope, thus reaching to improve the purpose of comfortable riding, comfortable riding is improved without adopting the mode adjusting medicated cushion height like that by prior art；When angle between left-hand tread plate (5) and right-hand tread plate (10) adjusts rider's comfortable angle, step on left-hand tread plate (5) further along and right-hand tread plate (10) just can allow and keep this fixing angle between left and right pedal。

In sum, the present invention not only can switch flexibly between single-direction transmission mode and common drive mode, and the angle between the pedal of left and right limit can be adjusted easily according to the height of rider and lower limb length, and then conveniently and effectively improve the comfortableness of rider, additionally this driving mechanism also simplify structure, reduces manufacture difficulty and production cost。

In the present case, described slip stick (14) and sliding axle (12) are welded and fixed。

Beneficial effect: the present invention not only can switch flexibly between single-direction transmission mode and common drive mode, and the angle between the pedal of left and right limit can be adjusted easily according to the height of rider and lower limb length, and then conveniently and effectively improve the comfortableness of rider, additionally this driving mechanism also simplify structure, reduces manufacture difficulty and production cost。

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention。

Detailed description of the invention

Below in conjunction with drawings and Examples, the invention will be further described:

As shown in Figure 1, a kind of driving mechanism for bicycle or tricycle, is mainly made up of vehicle frame 1, bearing 2, left half axle 3, right axle shaft 4, left-hand tread plate 5, unilateral bearing or single direction ratchet 6, left sprocket wheel 20, left angular wheel 7, right bevel gear 8, right sprocket wheel 9, right-hand tread plate 10, middle transition bevel gear 11, sliding axle 12, positioning sleeve 13 and slip stick 14。Wherein, vehicle frame 1 is the vehicle frame of bicycle or tricycle, and on vehicle frame 1, bearing 2 rotational support has a left half axle 3 and a right axle shaft 4 respectively, and this left half axle 3 and right axle shaft 4 are horizontally disposed with, and the axial line of left half axle 3 and right axle shaft 4 is on the same line。The left end of left half axle 3 is installed with a left-hand tread plate 5, is set with a left sprocket wheel 20 by unilateral bearing or single direction ratchet 6, and left half axle 3 right-hand member is coaxially installed with a left angular wheel 7 in the middle part of this left half axle。Right axle shaft 4 left end is coaxially installed with a right bevel gear 8, is set with a right sprocket wheel 9 and the fixed right-hand tread plate 10 of right axle shaft 4 right-hand member by unilateral bearing or single direction ratchet 6 in the middle part of this right axle shaft。Further, left-hand tread plate 5 is identical with existing structure with the mounting means of right-hand tread plate 10, does not repeat at this。

Left angular wheel 7 and right bevel gear 8 in the same size, and left angular wheel 7 and right bevel gear 8 can be combined with same middle transition bevel gear 11 or depart from selectively。Middle transition bevel gear 11 is solidly set on sliding axle 12 front end, and the endoporus of this sliding axle 12 and positioning sleeve 13 is slidably matched, and can front and back sliding in positioning sleeve。Positioning sleeve 13 is vertical with left half axle 3, and positioning sleeve 13 is horizontally arranged on vehicle frame 1。

As it is shown in figure 1, slip stick 14 is vertically fixed on the axle body of sliding axle 12, slip stick 14 and sliding axle 12 are welded and fixed in the present case。Slip stick 14 is located in the hole 13a of bar shaped location, this bar shaped location hole 13a axially offering along positioning sleeve 13, and slip stick 14 can position movable in the 13a of hole and left-right rotation in bar shaped。The bar shaped location left side wall of hole 13a and right side wall front portion have one group of locating notch 13a ' all vertically, and slip stick 14 can snap in this locating notch, and the locating notch 13a ' on left side wall and right side wall positions the axially staggered setting of hole 13a along bar shaped。Additionally, left side wall and/or the right side wall at 13a rear portion, hole, bar shaped location are provided with and exit locating notch 13a "; this exits locating notch 13a " snap in for slip stick 14, in order to slip stick 14 is positioned when disengaging by middle transition bevel gear 11 with left angular wheel 7 and right bevel gear 8。

The foregoing is only presently preferred embodiments of the present invention, not with the present invention for restriction, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention。

Claims

1. the driving mechanism for bicycle or tricycle, it is characterized in that: include vehicle frame (1) and slip stick (14), wherein upper bearing (2) rotational support respectively of vehicle frame (1) has a horizontally disposed left half axle (3) and a right axle shaft (4), and the axial line of this left and right half is on the same line；The left end of described left half axle (3) is installed with a left-hand tread plate (5), it is set with a left sprocket wheel (20) by unilateral bearing or single direction ratchet (6) in the middle part of this left half axle, and left half axle (3) right-hand member is coaxially installed with a left angular wheel (7)；Described right axle shaft (4) left end is coaxially installed with a right bevel gear (8), it is set with a right sprocket wheel (9) and the fixed right-hand tread plate (10) of right axle shaft (4) right-hand member by unilateral bearing or single direction ratchet (6) in the middle part of this right axle shaft；

2. according to claim 1 for the driving mechanism of bicycle or tricycle, it is characterised in that: described slip stick (14) and sliding axle (12) are welded and fixed。