WO2020083320A1 - 一种脚踏车的传动结构 - Google Patents

一种脚踏车的传动结构 Download PDF

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Publication number
WO2020083320A1
WO2020083320A1 PCT/CN2019/112838 CN2019112838W WO2020083320A1 WO 2020083320 A1 WO2020083320 A1 WO 2020083320A1 CN 2019112838 W CN2019112838 W CN 2019112838W WO 2020083320 A1 WO2020083320 A1 WO 2020083320A1
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WO
WIPO (PCT)
Prior art keywords
transmission
gear
driven wheel
bicycle according
transmission structure
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PCT/CN2019/112838
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English (en)
French (fr)
Inventor
罗立元
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深圳市南博自动化设备有限公司
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Publication of WO2020083320A1 publication Critical patent/WO2020083320A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
    • B62M1/28—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by the use of flexible drive members, e.g. chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
    • B62M1/30—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by the use of intermediate gears

Definitions

  • the invention relates to the technical field of bicycle pedal resetting, in particular to a bicycle transmission structure that can realize the resetting of a pedal in a short process and has the characteristics of space saving, time saving and labor saving.
  • the bicycle As a vehicle that uses human power to generate forward power, the bicycle satisfies people's travel together with other vehicles such as motor vehicles.
  • existing bicycles use front and rear sprockets and gears connected to the front and rear sprockets. To drive, use the foot force to drive the rear wheels to get forward power, and long-term pedaling can easily cause leg muscles to overwork.
  • the present invention provides a bicycle transmission structure that can realize the reset of the foot pedal in a short process, has the characteristics of space saving, time saving and labor saving.
  • a transmission structure of a bicycle includes two oppositely arranged transmission units.
  • the transmission unit includes a linear reciprocating stepping mechanism and a transmission module drivingly connected to the linear reciprocating stepping mechanism.
  • the transmission modules of the two transmission units are driven by unidirectional transmission
  • the mechanism is connected to a power output mechanism, wherein the transmission unit further includes a reset module connected to the transmission module of the transmission unit.
  • the transmission module includes a first driven wheel and a first transmission gear coaxially arranged with the first driven wheel
  • the reset module includes a connecting member and an elastic member, the connecting member and the first A transmission gear is connected, and the elastic member is connected with the connecting member.
  • the transmission module further includes a second driven wheel and a transmission connection device, and the first driven wheel and the second driven wheel are connected through the transmission connection device.
  • the transmission connection device is provided with an auxiliary wheel rotatably connected thereto.
  • the linear reciprocating stepping mechanism includes a linear guide rail and a foot pedal slidingly connected to the linear guide rail.
  • the linear guide rail is parallel to one side of the transmission connection device.
  • the side of the transmission connection device is fixedly connected.
  • the connecting member is a gear engagement plate
  • the gear engagement plate is rotatably connected by a rotating shaft fixed on the frame
  • one end of the gear engagement plate is provided with a gear connected to the first transmission gear
  • the other end of the gear engagement plate is provided with a hooking portion that is rotatably connected to the end.
  • the other ends of the elastic members of the two transmission units are connected to a fixing member.
  • the fixing member is an adjustable fixing member, which includes a fixing seat, a tapered screw, a fixing head, a locking head, two adjusting screws and two sliding pieces.
  • the fixing seat is provided with two holes for threading Two adjusting screw holes of the adjusting screw and screw holes for threading through the tapered screws, the two sliding parts are respectively slidably sleeved on the fixing seats, and are located in the corresponding adjusting screw holes Between the screw hole, the fixing head is screwed to the lower end of the adjusting screw and fixedly connected to the other end of the elastic member, and the locking head is screwed to the lower end of the tapered screw.
  • a process enlargement gear set is provided between the connecting member and the first transmission gear.
  • the elastic member is selected from one of tension spring, compression spring, coil spring, spring and torsion spring.
  • the transmission structure of the bicycle of the present invention can realize the resetting of the foot pedal through the reset module, and at the same time, the transmission cooperation of the elastic member with the first transmission gear and the connecting member can be realized in a short process
  • the reset of the foot pedal saves time and effort.
  • FIG. 1 is a perspective structural view of a transmission structure of a bicycle according to an embodiment of the invention.
  • FIG. 2 is a structural view of one side of a transmission unit in an embodiment of the invention.
  • FIG. 3 is a structural diagram of another side of a transmission unit in an embodiment of the invention.
  • FIG. 4 is a transmission connection structure diagram of a process enlargement gear set, a connecting member and a first transmission gear in an embodiment of the invention
  • FIG. 5 is a structural diagram of a connecting member in an embodiment of the invention.
  • FIG. 6 is a structural diagram of a power output mechanism located outside the transmission unit in an embodiment of the present invention.
  • FIG. 7 is a structural diagram of an auxiliary wheel provided with a rotation connection device of a transmission connection device according to an embodiment of the present invention.
  • FIG. 8 is a structural diagram of an adjustable fixing member fixed on an upper end of an elastic member according to an embodiment of the invention.
  • FIG. 9 is a perspective structural view of an adjustable fixing member in an embodiment of the present invention.
  • FIG. 10 is a perspective structural view of two elastic members connected to an adjustable fixing member according to an embodiment of the invention.
  • FIG. 11 is an exploded view of an adjustable fixing member in an embodiment of the invention.
  • FIG. 12 is a structural diagram of a side of a transmission unit in which a connecting member directly meshes with a first transmission gear in an embodiment of the present invention.
  • FIGS. 1 to 3 it is a schematic diagram of a transmission structure of a bicycle according to an embodiment of the present invention.
  • the transmission structure of the bicycle includes two oppositely disposed transmission units 100.
  • the transmission unit 100 includes a linear reciprocating stepping mechanism and a transmission module 1 connected to the linear reciprocating stepping mechanism.
  • the transmission modules 1 of the two transmission units 100 are connected to a power output mechanism 6 through a unidirectional transmission mechanism.
  • the wheels connected by the transmission get riding power.
  • the transmission unit 100 also includes a reset module connected to the transmission module 1 of the transmission unit 100.
  • the transmission module 1 includes a first driven wheel 11 and a first transmission gear 111 disposed coaxially with the first driven wheel 11.
  • the first transmission gear 111 is linked to the first driven wheel 11.
  • the reset module includes a connecting member 2 and an elastic member 3, wherein the connecting member 2 is drivingly connected to the first transmission gear 111, and the elastic member 3 is connected to the connecting member 2.
  • the transmission module 1 further includes a second driven wheel 12 and a transmission connection device 13 through which the first driven wheel 11 and the second driven wheel 12 are connected.
  • the one-way transmission mechanism is fixed on the shaft 121 of the second driven wheel 12, and the two corresponding second driven wheels 12 in the two transmission units 100 are synchronously fixed on the shaft 121.
  • the one-way transmission mechanism rotates synchronously only when the second driven wheel 12 rotates in a certain fixed direction, and the power output mechanism 6 rotates with the second driven wheel 12 to output a rotational torque to the outside, so that the wheels connected to the power output mechanism 6 obtain The turning force of riding.
  • the one-way transmission mechanism does not rotate with the second driven wheel 12, and accordingly, the power output mechanism 6 does not rotate with the second driven wheel 12 at this time.
  • 1 and 2 show the power output mechanism 6, and FIG. 3 does not show the power output mechanism 6.
  • the power output mechanism 6 of the transmission structure of the bicycle of the present invention transmits It is connected to the central position of the shaft 121, that is, between two corresponding second driven wheels 12 in the two transmission units 100. In some embodiments, as shown in FIGS.
  • the power output mechanism 6 includes a first output wheel 61 fixed on the shaft 121, a second output wheel 62 for driving transmission with a bicycle wheel, and a transmission A transmission chain connected to the first output wheel 61 and the second output wheel 62, the second output wheel 62 is coaxially fixed with a power transmission wheel 621, and the shaft end gear disc of the power transmission wheel 621 and the bicycle wheel can be connected through the chain Realize power output.
  • the first output wheel 61 in the power output mechanism 6 is connected to the one-way transmission mechanism.
  • one side of the transmission connecting device 13 is provided with a linear guide 4 parallel to the side, and the linear guide 4 is slidingly connected with a foot pedal 5, a foot pedal 5 It is fixedly connected to this side of the transmission connection device 13.
  • the length direction of the linear guide rail 4 is straight down, preferably a vertical direction perpendicular to the horizontal plane, so that it is arranged so that the straight line is stepped down, and riding is relatively labor-saving.
  • a slider 51 is connected to the foot pedal 5, and the slider 51 is slidably fixed on the linear guide 4.
  • a fixing block 52 is provided on one side of the slider 51, and the fixing block 52 is fixed on the transmission connecting device 13.
  • the transmission connection device 13 in the transmission module 1 is a chain
  • the linear guide 4 is parallel to one side of the chain
  • the fixing block 52 is fixed to the side of the chain.
  • the transmission connection device 13 may also be a transmission belt.
  • the transmission connection device 13 is a transmission belt
  • the first driven wheel 11 and the second driven wheel 12 are transmission wheels, and the transmission connection of the belt structure
  • the device 13 can also reduce the weight of the transmission module.
  • the linear guide rail 4 is arranged vertically, and the second driven wheel 12 is located above the first driven wheel 11.
  • the tangent of the two on the side close to the linear guide rail 4 is parallel to the linear guide rail 4.
  • This setting enables the foot pedal 5 to move downward along the vertical linear guide 4 when being stepped on, and the chain segment of the chain corresponding to the side of the linear guide 4 is parallel to the linear guide 4 so that the foot pedal 5
  • the separation distance between the foot pedal 5 and the chain segment on the side opposite to the linear guide 4 can be kept constant.
  • the linear guide 4 and the chain section of the chain on the side opposite to the linear guide 4 are kept parallel in the vertical direction, so that the force applied to the chain via the foot pedal 5 all acts in the vertical movement direction, and No horizontal component force is generated.
  • the first driven wheel 11 and the second driven wheel 12 are rotated counterclockwise under the drive of the transmission connecting device 13, and the second driven wheel 12 is fixed to its shaft 121, and is linked to the first
  • the one-way transmission mechanism fixedly connected to the shaft 121 of the two driven wheels 12 also rotates counterclockwise, and then the one-way transmission mechanism drives the power output mechanism 6 connected thereto to rotate counterclockwise, and the structure of the transmission connection with the power output mechanism 6 is obtained at this time Forward momentum.
  • the connecting member 2 drivingly engaged with the first transmission gear 111 is also rotated clockwise by an angular displacement driven by the first transmission gear 111 rotating counterclockwise, so that the elastic member 3 obtains a tensile or compressive deformation, ie
  • the reset module has an elastic potential energy.
  • the elastic member 3 recovers its elastic deformation, and the elastic potential energy is released, which drives the connecting member 2 to rotate counterclockwise to reset, and the first transmission gear 111 connected to the connecting member 2 also rotates clockwise.
  • the first driven wheel 11 coaxially linked with the first transmission gear 111 also rotates clockwise, thereby driving the transmission connection device 13 to rotate clockwise, and thus, the transmission connection device 13 drives the second driven wheel 12 to rotate clockwise.
  • the unidirectional transmission mechanism Under the effect of the one-way transmission, only the second driven wheel 12 rotates clockwise, and the power output mechanism 6 connected to the one-way transmission mechanism does not rotate.
  • the transmission connection The device 13 is rotated clockwise to reset, and the foot pedal 5 connected to the transmission connection device 13 is also reset to the initial position before being stepped on.
  • the power output mechanism 6 may be a one-way bearing, a one-way clutch and other devices with one-way transmission.
  • a one-way bearing with a brand of GMN and a model of FE 410Z2 is selected As an example.
  • the shaft 121 of the second driven wheel 12 is fixedly connected to the inner ring of the one-way bearing, and the first output wheel 61 in the power output mechanism 6 is fixedly connected to the outer ring of the one-way bearing.
  • the outer ring and the inner ring are not locked, the outer ring does not follow the rotation, and is fixed with the outer ring
  • the connected first output wheel 61 also does not rotate, and at this time, the power output mechanism 6 has no rotational torque output.
  • the present invention also proposes some other embodiments based on the transmission structure of the bicycle, and some embodiments of the present invention will be described in detail below in conjunction with other drawings.
  • the connecting member 2 is a gear engagement plate 21.
  • the gear engagement plate 21 is rotatably connected by a rotating shaft 211 fixed on the frame.
  • One end of the gear engagement plate 21 Along with the transmission teeth 212 connected to the first transmission gear 111, the other end of the gear engagement plate 21 is rotatably connected to the elastic member 3.
  • the end of the gear engagement plate 21 is rotatably connected to the hook portion 10 . Both ends of the elastic members 3 of the two transmission units 100 are connected to a fixing member, and the other end is hooked to the hooking portion 10.
  • the fixing member is an adjustable adjustable fixing member 7, the elastic member 3 is hooked on the hooking portion 10 at one end, and the other end is adjustable It is hooked on the adjustable fixing member 7.
  • the adjustable fixing member 7 includes a fixing base 71, a tapered screw 73, a fixing head 76, a locking head 75, two adjusting screws 72 and two sliding members 74.
  • the fixing seat 71 is provided with two adjusting screw holes 712 for threading the two adjusting screws 72 and screw holes 711 for threading the tapered screws 73. As shown in FIG.
  • the two sliding members 74 are slidably sleeved It is connected to the fixing base 71 and is located between the corresponding adjusting screw hole 712 and the screw hole 711, and the two corresponding adjusting screws 72 are clamped and fixed by the corresponding two sliding members 74.
  • the fixing head 76 is screwed to the lower end of the adjusting screw 72 and fixedly connected to the other end of the elastic member 3, and the locking head 75 is screwed to the lower end of the conical screw 73.
  • the distance between the head of the adjusting screw 72 and the fixed head 76 can be adjusted through the adjusting screw 72, that is, the adjusting screw 72 is screwed to screw the rod into the fixed head 76, thereby adjusting the upper end of the elastic member 3 and the fixed seat 71 The distance between them is used to adjust the predetermined deformation amount of the elastic member 3.
  • the conical head 73 forces the slider 74 to squeeze the head of the adjustment screw 72 by the upward and downward movement of the conical screw 73, thereby clamping the adjustment screw 72 connected to the elastic member 3 Locking, the adjustable fixing member 7 can better protect the elastic member 3, and extend its service life.
  • a process enlargement gear set 8 is provided between the connecting member 2 and the first transmission gear 111.
  • the process amplifying gear set 8 includes a first amplifying gear 81 and a second amplifying gear 82.
  • the first amplifying gear 81 is coaxially fixed with a first meshing gear
  • the second amplifying gear 82 is coaxially fixed
  • the first amplifying gear 81 meshes with the first transmission gear 111
  • the second amplifying gear 82 meshes with the first meshing gear
  • the second meshing gear 821 meshes with the connector 2.
  • the diameters of the first amplifying gear 81 and the second amplifying gear 82 are larger than those of the first meshing gear, the second meshing gear 821, and the first transmission gear 111, and the process is amplified through the small and large gears, and the elastic member 3 only needs to be A small elastic deformation can reset the foot pedal 5 and prolong the service life of the elastic member 3.
  • the power output mechanism 6 is disposed at the outer end of the shaft 121, that is, outside one of the two second driven wheels 12.
  • an auxiliary wheel 9 is rotatably connected to the transmission connection device 13, and the auxiliary wheel 9 adjusts the position of the transmission connection device 13 to arrange it more neatly and reduce the occupied space, Avoid interference with other components.
  • the transmission connection device 13 is a chain, correspondingly, the auxiliary wheel 9 is a sprocket, and when the transmission connection device 13 is a belt, correspondingly, the auxiliary wheel 9 is a pulley.
  • the fixing member connected to the other end of the elastic member 3 may also be a fixing rod 7 a, and the fixing rod 7 a is not adjustable for fixing.
  • FIGS. 8 and 9 an embodiment of the present invention is shown, and the elastic member 3 is configured with an adjustable fixed member 7 and a process enlargement gear set 8, which can be better extended by double adjustment protection The service life of the elastic member 3.
  • the elastic member 3 may be selected from one of a tension spring, a compression spring, a coil spring, a spring, and a torsion spring.
  • FIG. 12 is a structural view of one side of the transmission unit 100 where the connecting member 2 directly meshes with the first transmission gear 111.
  • the connecting member 2 of the transmission unit 100 directly meshes with the first transmission gear 111, no process enlargement gear set 8 is provided in the middle, and the other end of the gear engagement plate 21 is directly connected with the elastic member 3 in rotation. That is, one end of the elastic member 3 is directly hooked on the hanging hole at the end of the gear engagement plate 21.

Abstract

一种脚踏车的传动结构，包含两相对设置的传动单元（100），传动单元（100）包含直线往复踩踏机构、与直线往复踩踏机构传动连接的传动模块（1），以及与传动模块（1）连接的复位模块，两传动单元（100）的传动模块（1）通过单向传动机构连接一动力输出机构（6）。传动模块（1）包含有第一从动轮（11）及与第一从动轮（11）同轴设置的第一传动齿轮（111），复位模块包含连接件（2）及弹性件（3），连接件（2）与第一传动齿轮（111）连接，弹性件（3）与连接件（2）连接。该脚踏车的传动结构通过复位模块可实现脚踏板（5）的复位回正，同时通过弹性件（3）与第一传动齿轮（111）和连接件（2）的传动配合，可以以很短的进程实现脚踏板（5）的复位，省时省力。

Description

一种脚踏车的传动结构 技术领域
本发明涉及脚踏车踏板复位技术领域，具体涉及一种可以以很短的进程实现脚踏板的复位，具有节省空间，省时省力特点的脚踏车的传动结构。
背景技术
脚踏车作为一种以人力踩踏产生前进动力的交通工具，与机动车等其他交通工具一起满足了人们的出行，但是现有的脚踏车采用的是前后侧的链轮以及连接在前后链轮上的齿轮来传动，通过脚力来驱动后轮获得前进动力，长时间踩踏容易造成腿部肌肉过劳酸痛。
发明内容
为了解决上述技术存在的缺陷，本发明提供一种可以以很短的进程实现脚踏板的复位，具有节省空间，省时省力特点的脚踏车的传动结构。
本发明实现上述技术效果所采用的技术方案是：
一种脚踏车的传动结构，包含两相对设置的传动单元，所述传动单元包含直线往复踩踏机构、与所述直线往复踩踏机构传动连接的传动模块，两所述传动单元的传动模块通过单向传动机构连接一动力输出机构，其中，所述传动单元还包含与该所述传动单元的传动模块相 连接的复位模块。
作为优选的，所述传动模块包含有第一从动轮及与所述第一从动轮同轴设置的第一传动齿轮，所述复位模块包含连接件及弹性件，所述连接件与所述第一传动齿轮连接，所述弹性件与所述连接件连接。
作为优选的，所述传动模块还包含第二从动轮及传动连接装置，所述第一从动轮与所述第二从动轮通过所述传动连接装置连接。
作为优选的，所述传动连接装置设有与其转动连接的辅助轮。
作为优选的，所述直线往复踩踏机构包括一直线设置的直线导轨以及与该直线导轨滑动连接的脚踏板，所述直线导轨与所述传动连接装置的一侧平行，所述脚踏板与所述传动连接装置的该侧固定连接。
作为优选的，所述连接件为一齿轮啮合板，所述齿轮啮合板通过固定在车架上的转轴转动连接，所述齿轮啮合板的一端沿设有与所述第一传动齿轮传动连接的传动齿，所述齿轮啮合板的另一端设有与该端转动连接的挂接部。
作为优选的，两所述传动单元的弹性件的另一端均与一固定件连接。作为优选的，所述固定件为一可调固定件，包括固定座、锥形螺丝、固定头、锁定头、两调节螺杆和两滑动件，所述固定座上设有用于螺纹穿接两所述调节螺杆的两调节螺杆孔以及用于螺纹穿接所述锥形螺丝的螺丝孔，两所述滑动件分别可滑动地套接在所述固定座上，并位于相应的所述调节螺杆孔和所述螺丝孔之间，所述固定头螺纹连接在所述调节螺杆的下端且与所述弹性件的另一端固定连接，所述锁定 头螺纹连接在所述锥形螺丝的下端。
作为优选的，所述连接件与所述第一传动齿轮之间设有进程放大齿轮组。
作为优选的，所述弹性件选自拉簧、压簧、卷簧、弹簧及扭簧其中之一。
本发明的有益效果为：本发明的脚踏车的传动结构通过复位模块可实现脚踏板的复位回正，同时通过弹性件与第一传动齿轮和连接件的传动配合，可以以很短的进程实现脚踏板的复位，省时省力。
附图说明
图1为本发明一实施例的脚踏车的传动结构的立体结构图；
图2为本发明一实施例中传动单元的一侧面的结构图；
图3为本发明一实施例中传动单元的另一侧面的结构图；
图4为本发明一实施例中进程放大齿轮组与连接件以及第一传动齿轮的传动连接结构图；
图5为本发明一实施例中连接件的结构图；
图6为本发明一实施例中动力输出机构位于传动单元外侧的结构图；
图7为本发明一实施例中传动连接装置设有与其转动连接的辅助轮的结构图；
图8为本发明一实施例中弹性件上端固定有可调固定件的结构图；
图9为本发明一实施例中固定件为可调固定件的立体结构图；
图10为本发明一实施例中两弹性件连接可调固定件的立体结构图；
图11为本发明一实施例中可调固定件的爆炸结构图；
图12为本发明一实施例中连接件与第一传动齿轮直接啮合的传动单元一侧面的结构图。
具体实施方式
为使对本发明作进一步的了解，下面参照说明书附图和具体实施例对本发明作进一步说明：
如图1至图3所示，为本发明一实施例的脚踏车的传动结构的示意图，该脚踏车的传动结构包含两相对设置的传动单元100。传动单元100包含直线往复踩踏机构、与该直线往复踩踏机构传动连接的传动模块1，两传动单元100的传动模块1通过单向传动机构连接一动力输出机构6，通过该动力输出机构6对与其传动连接的轮子获得骑行动力。传动单元100还包含与该传动单元100的传动模块1相连接的复位模块。传动模块1包含有第一从动轮11及与该第一从动轮11同轴设置的第一传动齿轮111，第一传动齿轮111与该第一从动轮11联动。复位模块包含连接件2及弹性件3，其中，该连接件2与第一传动齿轮111传动连接，弹性件3与连接件2连接。
在一些实施例中，传动模块1还包含第二从动轮12以及传动连接装置13，第一从动轮11与第二从动轮12通过该传动连接装置13 连接。单向传动机构固定在第二从动轮12的轴121上，两传动单元100中的两相应第二从动轮12同步固定在轴121上。该单向传动机构在第二从动轮12朝某一个固定方向转动时才随之同步转动，动力输出机构6随第二从动轮12转动，对外输出转动力矩，使连接动力输出机构6的轮子获得骑行的转动力。在第二从动轮12反向转动时，该单向传动机构不随第二从动轮12转动，相应地，动力输出机构6此时也不随第二从动轮12转动。图1和图2示出了动力输出机构6，图3未示出该动力输出机构6，在图1至图3所示的实施例中，本发明的脚踏车的传动结构的动力输出机构6传动连接在轴121的中部位置，即位于两传动单元100中的两相应第二从动轮12之间。在一些实施例中，再如图1至图3所示，动力输出机构6包括固定在轴121上的第一输出轮61、用于与脚踏车的轮子传动连接的第二输出轮62，以及传动连接在第一输出轮61和第二输出轮62上的传动链条，第二输出轮62同轴固定有动力传递轮621，通过链条连接动力传递轮621和脚踏车的轮子的轴端齿轮盘即可实现动力输出。具体的，动力输出机构6中的第一输出轮61与单向传动机构连接。
在一些实施例中，如图2和图3所示，传动连接装置13的一侧设有与该侧平行的直线导轨4，该直线导轨4上滑动连接有脚踏板5，脚踏板5与传动连接装置13的该侧固定连接。具体的，直线导轨4的长度方向直线朝下，优选为垂直于水平面的竖直方向，如此设置，方便直线朝下踩踏，骑行较为省力。脚踏板5连接有滑块51，该滑块51可滑动地固定在直线导轨4上，滑块51一侧设有固定块52， 固定块52固定在传动连接装置13上。在一些实施例中，具体的，传动模块1中的传动连接装置13为一链条，直线导轨4与该链条的一侧平行，固定块52与链条的该侧固定。相应地，在传动连接装置13为链条时，第一从动轮11、第二从动轮12为链轮。在一些其他实施例中，传动连接装置13也可以是传动皮带，相应地，在传动连接装置13为传动皮带时，第一从动轮11、第二从动轮12为传动轮，皮带结构的传动连接装置13一方面还可以减轻传动模块的重量。具体地，直线导轨4为竖直设置，第二从动轮12位于第一从动轮11的上方，两者在靠近直线导轨4一侧的切线与该直线导轨4平行。该设置使得脚踏板5受力被踩踏时可沿着竖直的直线导轨4向下运动，在对应直线导轨4一侧的链条的链条段与该直线导轨4平行相对，使得脚踏板5在竖直方向上运动时，可始终保持脚踏板5与链条在相对直线导轨4一侧的链条段之间的间隔距离不变。同时，直线导轨4与链条在相对该直线导轨4一侧的链条段保持竖直方向的平行，可使得经脚踏板5施加在链条上的作用力全部作用在竖直的运动方向上，而不产生水平方向的分力。
在脚踏板5被向下踩踏时，第一从动轮11和第二从动轮12在传动连接装置13的带动下逆时针转动，第二从动轮12与其轴121固定，联动地，与该第二从动轮12的轴121固定连接的单向传动机构也逆时针转动，然后单向传动机构带动与其连接的动力输出机构6逆时针进行转动，与该动力输出机构6传动连接的结构此时获得前进动力。与此同时，与第一传动齿轮111传动啮合的连接件2在逆时针转动的 第一传动齿轮111的带动下也顺时针转动一个角位移，使得弹性件3获得一个拉伸或压缩形变，即复位模块具有一个弹性势能。
在松开对脚踏板5的踩踏时，弹性件3恢复弹性形变，弹性势能释放，带动连接件2逆时针转动复位，与连接件2传动连接的第一传动齿轮111也顺时针转动，与第一传动齿轮111同轴联动的第一从动轮11也顺时针转动，从而带动传动连接装置13顺指针转动，从而，传动连接装置13带动第二从动轮12顺时针转动，在单向传动机构的单向传动作用下，只有第二从动轮12在顺时针转动，而连接在该单向传动机构其上的动力输出机构6是不回转的，在弹性件3释放完弹性势能后，传动连接装置13顺时针转动复位，连接在传动连接装置13上的脚踏板5也复位到踩踏前的初始位置。在一些实施例中，具体地，该动力输出机构6可以是单向轴承、单向离合器等具有单向传动的器件，本发明的实施例选择一品牌为GMN，型号为FE 410Z2的单向轴承作为示例性说明。第二从动轮12的轴121与单向轴承的内圈固定连接，动力输出机构6中的第一输出轮61与单向轴承的外圈固定连接。在第二从动轮12的轴121逆时针转动时，单向轴承的内圈与外圈锁死(单向传动)，此时，内圈与外圈不可相对转动，与第二从动轮12的轴121一起转动的内圈带动外圈逆时针转动，与外圈固定连接的第一输出轮61也同步转动，对外输出力矩。在第二从动轮12的轴121顺时针转动时，单向轴承的内圈可相对其外圈进行转动，此时，外圈与内圈未锁死，外圈不跟随转动，与外圈固定连接的第一输出轮61也不转动，此时动力输出机构6无转动力矩输出。
在图1所示的脚踏车的传动结构的基础上，本发明还提出了基于该脚踏车的传动结构的其他一些实施例，下面具体结合其他附图对本发明的一些实施例进行说明。
请参见图4和图5所示，在一些实施例中，该连接件2为为一齿轮啮合板21，齿轮啮合板21通过固定在车架上的转轴211转动连接，齿轮啮合板21的一端沿设有与第一传动齿轮111传动连接的传动齿212，齿轮啮合板21的另一端与弹性件3转动连接，在一些实施例中，齿轮啮合板21的该端转动连接有挂接部10。两传动单元100的弹性件3的一端均与一固定件连接，另一端与挂接部10挂接。
进一步地，在一些实施例中，请参见图10和图11所示，固定件为一可调的可调固定件7，弹性件3一端挂接在挂接部10上，另一端可调节地挂接在该可调固定件7上。该可调固定件7包括固定座71、锥形螺丝73、固定头76、锁定头75、两调节螺杆72和两滑动件74。固定座71上设有用于螺纹穿接两调节螺杆72的两调节螺杆孔712以及用于螺纹穿接锥形螺丝73的螺丝孔711，如图10所示，两滑动件74分别可滑动地套接在固定座71上，并位于相应的调节螺杆孔712和螺丝孔711之间，通过相应的两滑动件74对两相应调节螺杆72进行卡接固定。固定头76螺纹连接在调节螺杆72的下端且与弹性件3的另一端固定连接，锁定头75螺纹连接在锥形螺丝73的下端。通过调节螺杆72可调节该调节螺杆72的头部与固定头76之间的距离，即拧动该调节螺杆72使之杆体旋入固定头76，从而调节弹性件3的 上端与固定座71之间的距离，以此来调节弹性件3的预定形变量。在需要调节该调节螺杆72时，通过锥形螺丝73的上下运动，使其锥形头部迫使滑动件74挤压调节螺杆72的头部，从而将与弹性件3连接的调节螺杆72卡紧锁死，通过该可调固定件7可以更好地保护弹性件3，延长其使用寿命。
进一步地，在一些实施例中，请参见图3所示，连接件2与第一传动齿轮111之间设有进程放大齿轮组8。具体如图4所示，该进程放大齿轮组8包括第一放大齿轮81和第二放大齿轮82，第一放大齿轮81上同轴固定有第一啮合齿轮，第二放大齿轮82上同轴固定有第二啮合齿轮821。第一放大齿轮81与第一传动齿轮111啮合，第二放大齿轮82与第一啮合齿轮啮合，第二啮合齿轮821与连接件2啮合。第一放大齿轮81和第二放大齿轮82的直径均大于第一啮合齿轮、第二啮合齿轮821和第一传动齿轮111，通过大小齿轮实现了对进程的放大，可以实现弹性件3只需进行很小的弹性形变即可使脚踏板5的复位，延长了弹性件3的使用寿命。
在一些实施例中，如图6所示，动力输出机构6设置在轴121的外端，即两第二从动轮12其中一个的外侧。再如图7、图8和图9所示，传动连接装置13上转动连接有辅助轮9，该辅助轮9将传动连接装置13进行位置调整，将其整理的更整齐，减少占用的空间，避免与其他部件发生干涉。在传动连接装置13为链条时，相应地，辅助轮9为链轮，在传动连接装置13为皮带时，相应地，辅助轮9为皮带轮。
在一些实施例中，如图1至图3、图6和图7所示，连接在弹性件3另一端的固定件还可以是固定杆7a，固定杆7a固定不可调节。如图8和图9所示，示出的是本发明的一实施例，其弹性件3配置的是可调固定件7和进程放大齿轮组8，通过双重的调节保护，可更好地延长弹性件3的使用寿命。在一些实施例中，弹性件3可选自拉簧、压簧、卷簧、弹簧及扭簧其中之一。
在一些实施例中，如图12所示，图12示出的是连接件2与第一传动齿轮111直接啮合的传动单元100的一侧面的结构图。在该具体的实施例中，传动单元100的连接件2与第一传动齿轮111直接啮合，中间不设置进程放大齿轮组8，且齿轮啮合板21的另一端与弹性件3直接进行转动连接，即弹性件3一端直接挂接在齿轮啮合板21该端的挂孔上。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是本发明的原理，在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明的范围内，本发明要求的保护范围由所附的权利要求书及其等同物界定。

Claims (10)

  1. 一种脚踏车的传动结构，包含两相对设置的传动单元，所述传动单元包含直线往复踩踏机构、与所述直线往复踩踏机构传动连接的传动模块，两所述传动单元的传动模块通过单向传动机构连接一动力输出机构，其特征在于：
    所述传动单元还包含与该所述传动单元的传动模块相连接的复位模块。
  2. 根据权利要求1所述的脚踏车的传动结构，其特征在于：
    所述传动模块包含有第一从动轮及与所述第一从动轮同轴设置的第一传动齿轮，所述复位模块包含连接件及弹性件，所述连接件与所述第一传动齿轮连接，所述弹性件与所述连接件连接。
  3. 根据权利要求2所述的脚踏车的传动结构，其特征在于：
    所述传动模块还包含第二从动轮及传动连接装置，所述第一从动轮与所述第二从动轮通过所述传动连接装置连接。
  4. 根据权利要求3所述的脚踏车的传动结构，其特征在于：所述传动连接装置设有与其转动连接的辅助轮。
  5. 根据权利要求1所述的脚踏车的传动结构，其特征在于：
    所述直线往复踩踏机构包括一直线设置的直线导轨以及与该直线导轨滑动连接的脚踏板，所述直线导轨与所述传动连接装置的一侧平行，所述脚踏板与所述传动连接装置的该侧固定连接。
  6. 根据权利要求2所述的脚踏车的传动结构，其特征在于：
    所述连接件为一齿轮啮合板，所述齿轮啮合板通过固定在车架上的转轴转动连接，所述齿轮啮合板的一端沿设有与所述第一传动齿轮传动 连接的传动齿，所述齿轮啮合板的另一端设有与该端转动连接的挂接部。
  7. 根据权利要求2或4所述的脚踏车的传动结构，其特征在于：两所述传动单元的弹性件的另一端均与一固定件连接。
  8. 根据权利要求7所述的脚踏车的传动结构，其特征在于：
    所述固定件为一可调固定件，包括固定座、锥形螺丝、固定头、锁定头、两调节螺杆和两滑动件，所述固定座上设有用于螺纹穿接两所述调节螺杆的两调节螺杆孔以及用于螺纹穿接所述锥形螺丝的螺丝孔，两所述滑动件分别可滑动地套接在所述固定座上，并位于相应的所述调节螺杆孔和所述螺丝孔之间，所述固定头螺纹连接在所述调节螺杆的下端且与所述弹性件的另一端固定连接，所述锁定头螺纹连接在所述锥形螺丝的下端。
  9. 根据权利要求8所述的脚踏车的传动结构，其特征在于：
    所述连接件与所述第一传动齿轮之间设有进程放大齿轮组。
  10. 根据权利要求2所述的脚踏车的传动结构，其特征在于：所述弹性件选自拉簧、压簧、卷簧、弹簧及扭簧其中之一。
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