WO2016173291A1 - 一种重力悬吊摆动式省力自行车 - Google Patents

一种重力悬吊摆动式省力自行车 Download PDF

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Publication number
WO2016173291A1
WO2016173291A1 PCT/CN2016/000206 CN2016000206W WO2016173291A1 WO 2016173291 A1 WO2016173291 A1 WO 2016173291A1 CN 2016000206 W CN2016000206 W CN 2016000206W WO 2016173291 A1 WO2016173291 A1 WO 2016173291A1
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Prior art keywords
rod
chain
labor
gravity
power rod
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PCT/CN2016/000206
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English (en)
French (fr)
Inventor
张延长
张诗乐
王惠军
王千岳
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张延长
张诗乐
王惠军
王千岳
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Application filed by 张延长, 张诗乐, 王惠军, 王千岳 filed Critical 张延长
Publication of WO2016173291A1 publication Critical patent/WO2016173291A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K3/00—Bicycles
    • B62K3/02—Frames
    • 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
    • B62M1/18—Rider propulsion of wheeled vehicles by movement of rider's saddle
    • 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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/16—Tensioning or adjusting equipment for chains, belts or the like

Definitions

  • the invention belongs to the bicycle field in the field of transportation tools in the mechanical manufacturing industry, including two-wheel bicycles, three-wheel bicycles and four-wheel bicycles, in particular to a gravity suspension swinging labor-saving bicycle.
  • Bicycle is a convenient and environmentally friendly transportation tool, and also a good equipment for exercise and fitness.
  • the existing bicycle has the following problems: 1.
  • the human body is at the highest position of the bicycle, which has certain safety hazards and a large wind resistance;
  • the existing bicycle seat is mostly a triangular seat, which is very uncomfortable to ride. It is easy to damage the human perineum when riding for a long time.
  • the existing bicycle is alternately exerted on one leg, and the load on one leg is large, and it is easy to knee joint. Injury occurs; 4, bicycle riding is more laborious, it is difficult to ride for a long time.
  • a gravity suspension swinging labor-saving bicycle comprising a frame, a wheel, an axle, a middle axle, a power pole, a driven rod, a transmission mechanism, a chain, a flywheel, a seat type seat, characterized in that the central shaft It is fixedly mounted on the frame above the car.
  • a power rod is mounted on one side of the central shaft.
  • the lower end of the power rod is connected with the seat type seat.
  • the lower end of the power rod is equipped with a tensioner, and the tensioner is connected with the large spring.
  • the other end of the spring is connected with the rear part of the frame, and the other side of the middle shaft is mounted with a driven rod, and the driven rod is connected with the lower end of the power rod through a transmission mechanism, wherein the chain is meshed with the flywheel of the rear wheel;
  • the transmission mechanism is composed of a rope belt, a chain and a small spring.
  • One end of the rope belt is connected with the rod portion of the driven rod, the other end is connected with the chain, the other end of the chain is connected with the small spring, and the other end of the small spring is
  • the lower part of the power rod is connected to form a complete connecting chain of the power rod ⁇ the follower rod ⁇ the rope belt ⁇ the chain ⁇ the small spring ⁇ the power rod.
  • the rod portion of the driven rod has a semi-circular arc shape, and the rod portion has a plurality of connecting ports with the rope belt, and the distance between each connecting port and the flywheel is equal, and the driving speed is realized by selecting the connecting port. Adjustment.
  • the tensioner is a basket screw or a hand shaker or other tensioning structure.
  • the rear wheel of the wheel is larger than the front wheel, and the rear wheel and the front wheel form an angle of 10-20 degrees with the ground.
  • the frame is one or two curved frames, the front end of the frame is connected to the head pipe of the vehicle, and the rear end is connected to the rear axle or axle of the vehicle.
  • a telescopic pedal device is mounted on the head tube of the vehicle head.
  • the cord is a steel cord or a chemical fiber rope.
  • the frame 1 with the center axle is located at the upper part of the bicycle, and the lower end of the power pole 3 connected to the center shaft 2 is connected.
  • the seat type seat 9 is connected, which reduces the rider's riding height and improves the riding safety;
  • the seat type seat makes the riding more comfortable, the backrest seat is easier to force, and the riding force is the simultaneous use of the legs, reducing the force of the single leg alternating force on the knee joint;
  • the power rod is longer, the lever effect is better, and the power rod has a large spring that acts backwards.
  • the gravity of the human body can be converted into the elastic force of the large spring.
  • the power rod swings backward.
  • the spring force of the spring assists the power rod to swing backwards, which has significant labor-saving effect. It truly realizes the use of human gravity, lever pendulum force and spring force to achieve safety, comfort and labor saving, completely changing the bicycle riding mode and transmission. Structure, and provide a good technical solution for the bicycle to achieve the shape of the car, human power.
  • FIG. 1 is a schematic view showing the structure of a two-wheeled bicycle according to the present invention.
  • FIG. 2 is a schematic structural view of a three-wheeled bicycle according to the present invention.
  • Fig. 3 is a schematic view showing the structure of a follower lever in the present invention.
  • the marks in the figure indicate: 1, frame, 2, center shaft, 3, power rod, 4, follower rod, 5, rope, 6, chain, 7, small spring, 8, large spring, 9, seat Chair type seat, 10, tensioner, 11, fork frame, 12, head tube of the front, 13, axle of the rear wheel, 14, flywheel, 15, pedal device.
  • this embodiment provides a gravity suspension swinging labor-saving bicycle, including a frame 1, front and rear wheels and their axles, a middle axle 2, a power pole 3, a driven rod 4, a transmission mechanism, and a chain 5 , flywheel 14, seat type seat 9, wherein:
  • the frame 1 is two curved frames to ensure the firmness of the frame 1.
  • the frame 1 is located above the bicycle, the front end of the frame 1 is connected to the head pipe 12 of the front end, the rear end of the frame 1 is connected to the fork frame 11, and the fork frame 11 is connected to the axle 13 of the rear wheel to form a complete and firm body.
  • Frame Structure to achieve the unity of the frame and the car body.
  • the center shaft 2 of the bicycle is fixedly mounted between the two curved frames, and the design of the frame 1 in which the center shaft 2 is fixedly mounted above the vehicle is the most important innovation of the present invention.
  • a power rod 3 is mounted on one side of the center shaft 2, and a lower end of the power rod 3 is connected to the seat type seat 9, and a box body or a carrying bag of the carrier can be mounted at the rear of the seat type seat 9 to facilitate carrying items. .
  • a tensioner 10 is attached to the lower end of the power rod 3, and one end of the large spring 8 is connected to the tensioner 10, and the other end is connected to the rear of the frame 1.
  • the tensioner 10 functions to adjust the pulling force of the large spring 8, and the pulling force of the large spring 8 is greater than the gravity of the power rod 3 and the seat type seat 9, which is smaller than the power rod 3, the seat type seat 9 and the seat carrier. Gravity.
  • the power rod 3 and the seat type seat 9 When there is no load on the seat, the power rod 3 and the seat type seat 9 are in a position to move rearward; when there is a load on the seat, the power rod 3 and the seat type seat 9 are in a vertical position, At this time, the gravity of the carrier is converted into a rearward pulling force of the large spring 8, and the carrier refers to the rider or/and the carrier.
  • the other side of the center shaft 2 is mounted with a follower rod 4, and the follower rod 4 is connected to the lower end of the power rod 3 through a transmission mechanism (5, 6, 7), wherein the chain 6 and the rear wheel are The flywheel 14 is meshed with the connection.
  • the transmission mechanism is composed of a rope belt 5, a chain 6 and a small spring 7.
  • One end of the rope belt 5 is connected with the driven rod 4, the other end is connected with the chain 6, and the other end of the chain 6 is connected with the small spring 7, small
  • the other end of the spring 7 is connected with the lower part of the power rod 3 to form a complete connecting chain of the power rod 3 ⁇ the driven rod 4 ⁇ the rope belt 5 ⁇ the chain 6 ⁇ the small spring 7 ⁇ the power rod 3
  • the chain 6 is meshed with the flywheel 14
  • the force of the power rod 3 is transmitted to the flywheel 14 to drive the vehicle to run.
  • the small spring 7 functions as a tensioner to ensure reliable engagement of the chain 6 with the flywheel 14.
  • the backward swinging force drives the rod of the driven rod 4
  • the part moves forward, and the flywheel 14 moves forward through the chain 6 on the transmission mechanism (5, 6, 7), and the flywheel 14 belt Exercise on the bike.
  • the above-mentioned rope belt 5 is made of a steel wire rope or a synthetic fiber rope, which can reduce the amount of the chain, reduce the cost, and reduce the weight.
  • the rod portion of the driven rod 4 shown in FIG. 1, FIG. 2 and FIG. 3 is a semi-circular arc shape, and the rod portion has a plurality of connecting ports with the cord 5, and the distance between each connecting port and the flywheel 14 is equal.
  • the bicycle wheel shown in Fig. 1 has a rear wheel larger than the front wheel, and the rear wheel and the front wheel form an angle of 10-20 degrees with the ground, so that when the bicycle encounters a small uphill, the power rod 3 does not swing backward. Too much affects the swing.
  • the frame 1 shown in Fig. 1 is two curved frames to ensure the firmness of the frame and the wide field of view, and the frame can also be used as a bracket for installing a sunshade or a solar panel.
  • the front end of the frame 1 is connected to the head pipe 12 of the front end (also called the front fork bushing), the rear end is connected to the fork frame 11, and the fork frame 11 is connected with the axle 13 of the rear wheel to form a complete and firm frame.
  • the structure achieves the unity of the frame 1 and the vehicle body.
  • the head tube 12 of the vehicle head shown in Fig. 1 is provided with a telescopically adjustable pedal device 15 for pedaling of the bicycle, and the telescopic adjustment is suitable for riding of people of different heights.
  • the box seat or the carrying bag of the carrier can be placed behind the seat type seat 9 shown in Fig. 1 to facilitate carrying articles.
  • FIG. 2 shows the application of the gravity suspension swinging labor-saving bicycle of the present invention to a three-wheeled bicycle.
  • the rear of the two frames 1 is directly connected to the axles 13 of the two rear wheels.
  • the gravity-suspended swinging labor-saving bicycle of the present invention shown in Fig. 2 is applied to a three-wheeled bicycle.
  • the follower rod 4 is connected to the flywheel 14 between the two rear wheels via a connecting structure (5, 6, 7).
  • the gravity suspension swinging labor-saving bicycle of the invention creatively places the central axis of the bicycle on the frame located above the vehicle, changes the traditional structure of the bicycle, fully utilizes the gravity of the human body, the leverage force and the spring force of the spring, and innovates A bicycle with simple structure, good safety performance, comfortable riding and labor saving.
  • the technical scheme of the gravity suspension swinging labor-saving bicycle of the invention is applicable to two-wheel bicycles, Applicable to three-wheeled bicycles and four-wheeled bicycles, the principle is the same, the technical solutions are the same, and the modifications required in the implementation can be instructed and guided by professional technicians.
  • the technical solution of the gravity suspension swinging labor-saving bicycle of the present invention is an embodiment of the present invention. If the electric drive is further increased in this solution, the outer casing of the bicycle is increased, and the appearance of the bicycle of the bicycle of the present invention is realized, and the human and electric double drive are realized. It will be a more ideal environmental protection tool.

Abstract

一种重力悬吊摆动式省力自行车，包括车架(1)、车轮、车轴、中轴(2)、动力杆(3)、从动杆(4)、传动机构、链条(6)、飞轮(14)、座椅式车座(9)，所述的中轴(2)固定安装在车架(1)上，中轴(2)的一侧安装有动力杆(3)，动力杆(3)的下端与座椅式车座(9)连接，动力杆(3)下端安装有拉紧器(10)，拉紧器(10)与大弹簧(8)连接，大弹簧(8)的另一端与车架(1)后部连接，中轴(2)的另一侧安装有从动杆(4)，从动杆(4)通过传动机构与动力杆(3)的下端连接，其中的链条(6)与后车轮的飞轮(14)啮合连接。该重力悬吊摆动式省力自行车改变了自行车的传统结构，充分利用了人体重力、杠杆的摆力和弹簧的弹力，其结构简单，可用于两轮、三轮和四轮自行车，是一种适合于不同群体人员使用的简单、安全、环保、舒适、安全和省力的城市代步工具。

Description

一种重力悬吊摆动式省力自行车 技术领域
本发明属于机械制造行业中交通运输工具领域的自行车领域，包括两轮自行车、三轮自行车和四轮自行车，具体说是涉及一种重力悬吊摆动式省力自行车。
背景技术
自行车是一种既方便又环保的交通运输工具，也是运动健身的好器材，但现有自行车存在以下问题：1、人体处于自行车的最高位，具有一定的安全隐患，且风阻较大；2、现有自行车车座多为三角形车座，骑坐很不舒服，长时间骑行易损伤人体会阴部；3、现有自行车是单腿交替发力，单腿的负荷较大，易对膝关节产生损伤；4、自行车骑行比较费力，难以较长时间骑行。
针对自行车骑行的安全性和舒适性问题，已有众多发明技术，如中国专利(CN201120303071)就公开了一种三轮躺骑自行车，中国专利(CN201120231419)公开的一种躺骑自行车，中国专利(CN201020573245)公开的框架结构倒三轮躺骑自行车，中国专利(CN201020277684)公开的躺骑自行车前后往复脚踏装置等，虽然对自行车骑行的安全和舒适性有一定的改进，但骑行的省力问题和单腿交替发力问题并没有很好地得到解决。
针对自行车省力的问题，也有众多发明技术，这些技术主要通过改变自行车齿轮传递结构或延伸自行车动力臂达到省力效果，如中国专利(CN201420403573)公开的新型杠杆省力自行车、中国专利(CN201420229763)公开的一种利用骑车人自重的省力自行车、中国专利(CN201420032088)公开的一种上下往复踩踏省力自行车、中国专利(CN201010571519)公开的高速行驶摆杆驱动健身省力自行车等，均是通过增加踏板结构，延伸动力臂达到省力效果，但没有解决骑行的舒适性和对单腿交替发力对膝关节的影响问题。
发明内容
针对上述现有自行车存在的缺陷或不足，本发明的目的在于，提供一种结构简单、安全性能好、骑行舒适且省力的自行车。
为了实现上述任务，本发明采用如下的技术解决方案：
一种重力悬吊摆动式省力自行车，包括车架、车轮、车轴、中轴、动力杆、从动杆、传动机构、链条、飞轮、座椅式车座，其特征在于，所述的中轴固定安装在车上方的车架上，中轴的一侧安装有动力杆，动力杆的下端与座椅式车座连接，动力杆下端安装有拉紧器，拉紧器与大弹簧连接，大弹簧的另一端与车架后部连接，中轴的另一侧安装有从动杆，从动杆通过传动机构与动力杆的下端连接，其中的链条与后车轮的飞轮啮合连接；
所述的传动机构由绳带、链条和小弹簧组成，绳带的一端与从动杆的杆部连接，另一端与链条相连接，链条的另一端与小弹簧连接，小弹簧的另一端与动力杆的下部连接，形成动力杆→从动杆→绳带→链条→小弹簧→动力杆的完整连接链。
根据本发明，所述从动杆的杆部是半圆弧形，杆部有多个与绳带的连接口，每个连接口与飞轮的距离是相等的，通过选择连接口，实现行车速度的调整。
根据本发明，所述的拉紧器是花篮螺丝或手摇器，或者是其它拉紧结构。
根据本发明，所述的车轮的后轮大于前轮，后轮和前轮与地面形成的角度是10-20度。
根据本发明，所述的车架是一根或是两根弧形车架，车架前端与车的头管连接，后端与车的后车轴或轮轴连接。
根据本发明，所述车头的头管上安装有可伸缩的脚踏装置。
根据本发明，所述绳带是钢丝绳或化学纤维绳。
本发明的重力悬吊摆动式省力自行车，带来的有益效果是：
1、简化了自行车车架的架构，节约材料，降低整车的重量；
2、带有中轴的车架1位于自行车的上部，中轴2连接的动力杆3下端连 接有座椅式车座9，降低了骑车人的骑行高度，提高骑行安全性；
3、座椅式车座使骑行更舒服，背靠座椅更容易发力，且骑行作用力是双腿同时用力，减少单腿交替用力对膝关节的受力；
4、动力杆较长，杠杆效果更好，且动力杆有向后作用的大弹簧，当人体坐在车座上，可以使人体重力转换为大弹簧的弹力，用力时动力杆向后摆动，弹簧的弹力协助动力杆向后摆动，具有显著的省力效果，真正实现了利用人体重力、杠杆摆力和弹簧弹力的作用，达到安全、舒适和省力的目的，彻底改变了自行车骑行方式和传动结构，并为自行车实现汽车外形，人力动力提供良好的技术方案。
附图说明
图1是本发明一种应用于两轮自行车的结构示意图；
图2是本发明一种应用于三轮自行车的结构示意图；
图3是本发明中的从动杆的结构示意图。
图中的标记分别表示：1、车架，2、中轴，3、动力杆，4、从动杆，5、绳带，6、链条，7、小弹簧，8、大弹簧，9、座椅式车座，10、拉紧器，11、分叉架，12、车头的头管，13、后车轮的车轴，14、飞轮，15、脚踏装置。
下面结合附图1-3及较佳实施例对本发明作进一步的详细说明。
具体实施方式
如图1所示，本实施例给出一种重力悬吊摆动式省力自行车，包括车架1、前后车轮及其轮轴、中轴2、动力杆3、从动杆4、传动机构、链条5、飞轮14、座椅式车座9，其中：
本实施例中，所述的车架1是是两根弧形车架，以保证车架1的牢固性。车架1位于自行车的上方，车架1的前端与车头的头管12连接，车架1的后端与分叉架11连接，通过分叉架11与后车轮的轮轴13连接，形成完整坚固的车架 结构，达到车架与车体的统一。
参见图1所示，自行车的中轴2是固定安装在两根弧形车架之间，将中轴2固定安装在车上方的车架1的设计，是本发明最重要的创新之处。
中轴2的一侧安装有动力杆3，动力杆3的下端与座椅式车座9连接，座椅式车座9的后方可安装承载物的箱体或载物袋，以方便携带物品。
动力杆3下端安装有拉紧器10，大弹簧8的一端与拉紧器10连接，另一端与车架1的后部连接。
拉紧器10的作用是调节大弹簧8的拉力，大弹簧8的拉力是大于动力杆3和座椅式车座9的重力，小于动力杆3、座椅式车座9和车座承载物的重力。
当车座上无承载物时，动力杆3和座椅式车座9处在向后方移动的位置；当车座上有承载物时，动力杆3和座椅式车座9在垂直位置，这时承载物的重力转换为大弹簧8向后的弹拉力，承载物是指骑车人或/和承载物。
当骑车人双脚蹬踏踏板15时，动力杆3向后运动，由于动力杆3向后运动时有大弹簧8向后的弹拉力，达到省力效果。
当大弹簧8的拉力通过拉紧器10调整在略小于动力杆3、座椅式车座9和车座承载物的重力时，大弹簧8向后的拉力为最佳，省力效果最明显。
如图1所示，中轴2的另一侧安装有从动杆4，从动杆4通过传动机构(5、6、7)与动力杆3的下端连接，其中的链条6与后车轮的飞轮14啮合连接。
所述的传动机构是由绳带5、链条6和小弹簧7组成，绳带5的一端与从动杆4连接，另一端与链条6连接，链条6的另一端与小弹簧7连接，小弹簧7的另一端与动力杆3的下部连接，形成动力杆3→从动杆4→绳带5→链条6→小弹簧7→动力杆3的完整连接链，由于链条6与飞轮14啮合连接，动力杆3的力传递到飞轮14，带动车辆运行。
所述的小弹簧7是起到张紧器的作用，保证链条6与飞轮14的可靠啮合，当动力杆3在动力作用下向后摆动时，向后的摆动力带动从动杆4的杆部向前移动，通过传动机构(5、6、7)上的链条6带动飞轮14向前运动，飞轮14带 动自行车运动前行。
上述的绳带5采用钢丝绳或合成纤维绳，可以减少链条用量，降低成本，减轻重量。
如图1、图2和图3所示的从动杆4的杆部是半圆弧形，杆部上有多个与绳带5的连接口，每个连接口与飞轮14的距离是相等的，通过选择不同的连接口与绳带5的连接，可以改变从动杆的受力半径，实现行车速度的调整。
如图1所示的自行车车轮是后轮大于前轮，后轮和前轮与地面形成的角度是10-20度，这样当自行车遇到小的上坡时，动力杆3不会向后摆动过多而影响摆动。
图1所示的车架1是两根弧形车架，以保障车架的牢固性和视野的开阔，同时车架也可以作为车安装遮阳棚或太阳能板的支架。
上述车架1的前端与车头的头管12(也叫前叉套管)连接，后端与分叉架11连接，分叉架11与车后轮的轮轴13连接，形成完整坚固的车架结构，达到车架1与车体的统一。
图1所示车头的头管12上安装有可伸缩调节的脚踏装置15，用于自行车的蹬踏骑行，可伸缩调节是为适合不同身高人员的骑行。
图1所示座椅式车座9的后方可安置承载物的箱体或载物袋，以方便携带物品。
图2所示的是本发明的重力悬吊摆动式省力自行车在三轮自行车的应用，两根车架1的后方是与两后车轮的轮轴13直接连接。
图2所示的本发明的重力悬吊摆动式省力自行车在三轮自行车的应用，从动杆4是通过连接结构(5、6、7、)与两后车轮之间的飞轮14连接。
本发明的重力悬吊摆动式省力自行车，创造性的将自行车的中轴安置在位于车上方的车架上，改变了自行车的传统结构，充分利用了人体重力、杠杆力和弹簧的弹力，创新了一种结构简单、安全性能好、骑行舒服且省力的自行车。
本发明的重力悬吊摆动式省力自行车的技术方案，适用于两轮自行车，也 适用于三轮自行车和四轮自行车，其原理相同，技术方案相同，实施中所需要的修改，能够启示和引导专业技术人员实现的。
本发明的重力悬吊摆动式省力自行车的技术方案是本发明的一种实施方案，如果在此方案中再增加电力驱动，增加自行车的外壳，实现本发明自行车的汽车外观，人力、电力双驱动，将是一种更理想的环保代步工具。
以上所述仅是本发明的实施例，并非对本发明作任何形式上的限制，凡是依据本发明的技术实质对本发明及以上实施例所做的任何简单修改、等同变化、改型、添加或替换，均属本发明技术的保护范围。

Claims (7)

  1. 一种重力悬吊摆动式省力自行车，包括车架(1)、前后车轮及其轮轴、中轴(2)、动力杆(3)、从动杆(4)、传动机构、链条(6)、飞轮(14)、座椅式车座(9)，其特征在于，所述的中轴(2)固定安装在车架(1)上，中轴(2)的一侧安装有动力杆(3)，动力杆(3)的下端与座椅式车座(9)连接，动力杆(3)下端安装有拉紧器(10)，拉紧器(10)与大弹簧(8)连接，大弹簧(8)的另一端与车架(1)后部连接，中轴(2)的另一侧安装有从动杆(4)，从动杆(4)通过传动机构与动力杆(3)的下端连接，其中的链条(6)与后车轮的飞轮(14)啮合连接；
    所述的传动机构由绳带(5)、链条(6)和小弹簧(7)组成，绳带(5)的一端与从动杆(4)的杆部连接，另一端与链条(6)相连接，链条(6)的另一端与小弹簧(7)连接，小弹簧(7)的另一端与动力杆(3)的下部连接，形成动力杆(3)→从动杆(4)→绳带(5)→链条(6)→小弹簧(7)→动力杆(3)的完整连接链。
  2. 如权利要求1所述的重力悬吊摆动式省力自行车，其特征在于，所述从动杆(4)的杆部是半圆弧形，杆部有多个与绳带(5)的连接口，每个连接口与飞轮(14)的距离是相等的，通过选择连接口，实现行车速度的调整。
  3. 如权利要求1所述的重力悬吊摆动式省力自行车，其特征在于，所述的拉紧器(10)是花篮螺丝或手摇器，或者是其它拉紧结构。
  4. 如权利要求1所述的重力悬吊摆动式省力自行车，其特征在于，所述的车轮的后轮大于前轮，后轮和前轮与地面形成的角度是10-20度。
  5. 如权利要求1所述的重力悬吊摆动式省力自行车，其特征在于，所述的车架(1)是一根或是两根弧形车架，车架前端与车的头管连接，后端与车的后车轴或轮轴连接。
  6. 如权利要求1所述的重力悬吊摆动式省力自行车，其特征在于，所述车头的头管(12)上安装有可伸缩的脚踏装置(15)。
  7. 如权利要求2所述的重力悬吊摆动式省力自行车，其特征在于所述绳带(5)是钢丝绳或化学纤维绳。
PCT/CN2016/000206 2015-04-27 2016-04-19 一种重力悬吊摆动式省力自行车 WO2016173291A1 (zh)

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