WO2023098542A1 - 一种上下往复式自行车、人力车传动机构 - Google Patents
一种上下往复式自行车、人力车传动机构 Download PDFInfo
- Publication number
- WO2023098542A1 WO2023098542A1 PCT/CN2022/133842 CN2022133842W WO2023098542A1 WO 2023098542 A1 WO2023098542 A1 WO 2023098542A1 CN 2022133842 W CN2022133842 W CN 2022133842W WO 2023098542 A1 WO2023098542 A1 WO 2023098542A1
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- WIPO (PCT)
- Prior art keywords
- transmission
- connecting rod
- chain
- bicycle
- rope
- Prior art date
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Classifications
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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
- B62M1/10—Rider propulsion of wheeled vehicles involving devices which enable the mechanical storing and releasing of energy occasionally, e.g. arrangement of flywheels
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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
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
Definitions
- the invention relates to the field of bicycles and rickshaws, in particular to an up and down reciprocating transmission mechanism for bicycles and rickshaws.
- the force is exerted by the feet during riding, and the crank rotates in circles.
- the force exerted by the feet is basically vertically downward, so the torque goes from zero to maximum and then to zero again and again. It is the largest at the highest and lowest points, and it is zero at the highest and lowest points.
- the effect of the force exerted by the human body is the force arm multiplied by the force, so some force effects are not good, and a lot of useless work is done.
- the rider will consume a lot of energy, causing ordinary people to ride normally
- the comfort range of a non-variable bicycle can only be within a short distance of two or three kilometers.
- the crank of the existing bicycle runs in circles, and the knee joint has a large range of motion.
- a transmission mechanism for up and down reciprocating bicycles and rickshaws comprising: flywheels, the flywheels are arranged in two groups, and ratchet mechanisms are included in the flywheels, and the two flywheels are respectively installed on the rear wheels on both sides, and the rear wheels are installed on the rear wheel shaft, and the two sets of flywheels are respectively equipped with transmission structures; the frame, four sets of fixed pulleys are installed in the middle of the frame, and a set of fixed pulleys is installed on the front of the vertical column of the frame.
- the fixed pulley is sleeved with a linkage rope, and the other three sets of fixed pulleys are sleeved with a transmission structure.
- the two ends of the linkage rope are respectively connected to the front ends of the two sets of connecting rods, and the two ends of the transmission structure are connected to the adjustment block of the connecting rod.
- the adjustment block can move along the length direction of the connecting rod; the connecting rod, the connecting rod is set in two groups, the two groups of connecting rods are respectively located on both sides of the frame, the front end of the connecting rod is fixed with a pedal, and the connecting rod is connected with the transmission structure connect.
- the transmission structure is a transmission rope
- the transmission rope is a three-section type
- the middle section of the transmission rope is an elastic rope
- the two side sections of the elastic rope are inelastic ropes
- the transmission structure includes a winding drive part, a pulley transmission part, a connecting part and the elastic tension end, and the winding driving part, the pulley transmission part and the connecting part are all arranged in two groups, and the two groups of winding driving parts are respectively installed on the flywheels on both sides of the rear wheel, and the two groups of pulley transmission parts are respectively installed on the On the fixed pulleys on both sides of the top of the middle part of the frame, the lower ends of the two sets of connecting parts are respectively installed on the surface of the adjustment blocks of the two sets of connecting rods, and one set of elastic tension ends are installed on the fixed pulleys located on the lower side of the frame.
- the number of turns of the winding driving part is at least two groups, and the winding driving part is directly wound on the flywheel, and at the same time, the rope loop located in the middle of the winding driving part is fixedly installed on the flywheel at one point in the case of insufficient static friction transmission. .
- the transmission structure is a three-stage transmission chain
- the middle section of the transmission chain is an elastic rope
- the two sides of the transmission chain are bicycle chains
- the transmission chain is a composite structure composed of an elastic rope and a bicycle chain.
- the bicycle chain at both ends of the transmission chain is installed on the chain flywheel at one end, and the other end is installed on the adjustment device through the fixed pulley.
- the corresponding fixed pulley is a sprocket.
- the transmission structure is that the five-segment transmission chain is a standard bicycle chain followed by an inelastic rope, and the length of the bicycle chain on the five-segment transmission chain is less than the length of the bicycle chain on the three-segment transmission chain.
- the fixed pulley that contacts the inelastic rope is a sheave.
- a mandrel is installed on the vehicle frame, and a fixed pulley is installed on the mandrel, and a bearing is installed between the mandrel and the pulley seat hole, the connecting rod and the rear wheel shaft.
- the connecting rod includes an adjustment block, a connecting rod body, a pull cable and a compression spring, while the adjustment block is adapted to the size of the connecting rod body, and the adjustment block is slidably installed on the connecting rod body, while compressing the spring and the adjustment block For interference installation, the dragline is connected to the adjustment block.
- a connecting rod block is installed on the vehicle frame, and a soft object is installed on the vehicle frame.
- a slider is installed under the vehicle frame, and an elastic element is connected to it, and a fixed pulley in contact with the elastic tension end of the transmission structure is installed on the slider.
- a protective cover is installed on the outside of the fixed pulley, and the protective cover is a fan-shaped structure, and the protective cover is installed on the mandrel of the fixed pulley through screws, and the four groups of fixed pulleys on the frame are equipped with protective covers on the outside .
- the transmission structure uses a rope transmission or uses a standard bicycle chain, and each pedal only reciprocates on a section of arc during the driving process, and the range of this motion is just It is the most suitable range for the human body to exert force and exert the best force effect; compared with the traditional chain transmission structure, it can use the rider's own gravity to perform force and work, and it overcomes the traditional bicycle in operation, which has great changes in the force arm The disadvantage of doing too much useless work at the dead point makes riding more labor-saving.
- the movement space of the pedals only involves the vertical part of the pedals, and the shaft of the connecting rod can be shared with the rear axle.
- the rear axle can also be used without the rear axle.
- the shaft is installed separately; in this way, the bicycle frame and the overall layout are less restricted, and the overall structure of the bicycle is more compact, simple in structure, and low in cost.
- the forward and backward movement distance of the pedals is small, which makes it easier for the rider to adopt two riding postures, standing and sitting.
- the two riding postures have their own advantages and can be switched at any time to make more Muscle groups are relaxed and exercised, reducing the discomfort of riding in a single sitting position; even if only riding in a sitting position, because the pedals move up and down almost in a straight line, the sitting position is upright and upright, which does not have to be like traditional riding In this way, the upper body leans forward, the perineum is basically no longer oppressed, and the range of motion of the knee joints is also much smaller, which also increases the riding comfort and increases the riding distance.
- the adjustment blocks on the left and right connecting rods are independently controlled and adjusted separately, so it can realize the special experience of different forces applied to the left and right feet, and can realize the training or strengthening of specific legs, or the alternate exercise of left and right legs, etc. OK fun.
- Fig. 1 is a schematic front view of the structure of the present invention.
- Fig. 2 is a schematic diagram when the transmission structure of the structure of the present invention is a transmission rope.
- Fig. 3 is a schematic diagram showing that the transmission structure of the structure of the present invention is a five-stage transmission chain installed on a vehicle frame.
- Fig. 4 is a side view of Fig. 3 showing the structure of the present invention.
- Fig. 5 is a three-dimensional view of Fig. 4 of the structure of the present invention.
- Fig. 6 is a side view of Fig. 5 showing the structure of the present invention.
- Fig. 7 is a schematic diagram of the connecting rod structure of the present invention.
- Fig. 8 is a schematic diagram of the adjustment block of the structure of the present invention.
- Fig. 9 is a three-dimensional schematic diagram of a fixed pulley with a structure of the present invention.
- Fig. 10 is a schematic cross-sectional view of the fixed pulley assembly of the structure of the present invention.
- Fig. 11 is a three-dimensional schematic diagram when the fixed pulleys on both sides of the frame of the fixed pulley assembly with the structure of the present invention are sprockets.
- the present invention provides a kind of technical scheme: a kind of transmission mechanism of up and down reciprocating bicycle, rickshaw, comprising: flywheel 2, vehicle frame 4 and connecting rod 6; There is a ratchet mechanism, and the rear wheel 1 is installed on the rear wheel shaft 9, and two groups of flywheels 2 are installed on both sides of the rear wheel 1 respectively, and the transmission structure 3 is respectively installed on the two groups of flywheels 2; the middle part of the vehicle frame 4 is installed with Four sets of fixed pulleys 5, and a set of fixed pulleys 5 mounted on the front of the vertical column of the vehicle frame are sleeved with linkage ropes 8, while the other three sets of fixed pulleys 5 are sleeved with transmission structures 3, and the two ends of the linkage ropes 8 are respectively Connected to the front ends of two groups of connecting rods 6, the adjustment block 61 is sleeved on the outside of the connecting rods 6; the ends of the two groups of connecting rods 6 are installed
- the transmission structure 3 is driven by a standard bicycle chain.
- each pedal 7 only reciprocates on a section of a circular arc, and the range of this movement is just the range where the human body is most suitable for exerting force and has the best force application effect;
- the rider's own weight can be used to exert force and do work.
- the rider’s knee joint has a large range of motion and is easily damaged; compared with the traditional bicycle’s pivot point, the movement range of the pedal 7 only involves the vertical space of the pedal 7, and the rotating shaft of the connecting rod 6 and the rear wheel shaft 9 sharing, after saving the center shaft of the traditional bicycle and the support seat on the frame, the restrictions on the overall layout of the bicycle frame and the bicycle become smaller, making the overall structure of the bicycle more concise and compact, and the transmission structure simpler.
- Transmission structure 3 is a five-stage transmission chain, the middle section of the transmission chain is an elastic rope, and the two sides of the transmission chain are standard bicycle chains, and a section of non-elastic rope is added after the standard bicycle chain.
- the roller chain length of the five-stage transmission chain is short, and the overall weight is lighter.
- the corresponding fixed pulley 5 in contact with the inelastic rope segment is a sheave; one end of the transmission chain is installed on the adjustment block 61 on the connecting rod 6 , then bypass the fixed pulley 5 installed on the same side of the vehicle frame 4, and bypass the chain flywheel 2 on the same side, at this time, the chain segment of the transmission chain is meshed with the chain flywheel 2, and then bypassed and installed in the middle of the vehicle frame 4
- the fixed pulley 5 reaches the other side of the frame 4 and bypasses the chain flywheel 2 on the opposite side.
- the second chain segment of the transmission chain meshes with the chain flywheel 2 on the opposite side, and then bypasses and is installed on the opposite side of the frame 4.
- the fixed pulley 5 on the top is finally installed with the connection point on the adjustment block 61 on the connecting rod 6 on the opposite side.
- the two riding postures have their own strengths and can be switched at any time, so that more muscle groups can be relaxed and exercised during riding, and the discomfort of riding in a single sitting posture can be alleviated; Even if you only ride in a sitting position, because the pedals 7 almost move up and down in a straight line, the range of motion of the knee joints is much smaller, and the sitting position does not have to lean forward like traditional riding, because the riding position is straight , The perineum is basically no longer oppressed, which also increases the riding comfort and increases the riding distance.
- a mandrel is installed on the vehicle frame 4, and a fixed pulley 5 is installed on the mandrel, a deep groove ball bearing with an end cover is installed between the mandrel and the pulley seat hole, and a self-supporting wheel is installed between the connecting rod 6 and the rear axle 9.
- Lubricated bearings free of lubrication within the life cycle, more environmentally friendly, and the friction coefficient is also small.
- Connecting rod 6 comprises adjusting block 61, connecting rod body 62, drag cable 63 and compression spring 64, and the size of adjusting block 61 and connecting rod body 62 is adapted simultaneously, and adjusting block 61 is slidably installed on connecting rod body 62, compresses simultaneously.
- the spring 64 is sleeved on the outside of the connecting rod body 62, and is installed against the adjusting block 61.
- the drag cable 63 is connected on the adjusting block 61, and the front end of the connecting rod 6 is equipped with a pedal 7.
- the adjusting block 61 is slidably connected to the outside of the connecting rod body 62. By changing the position of the connecting part 33 of the transmission structure 3 on the connecting rod 6, the speed change function is realized.
- the adjusting block 61 can slide along the connecting rod body 62, and after the spring 64 is compressed The end is fixed on the connecting rod body, the front end is against the adjustment block 61, one end of the drag cable 63 is connected to the adjustment block, and the other end is connected with the rotary handle or finger dial.
- the adjustment block 61 When the drag cable 63 is shortened by the control of the handle, the adjustment block 61 is The pulling force of the drag cable 63 moves toward the rotating shaft 9 at the rear end of the connecting rod, the moment arm becomes shorter, and the mechanism is in a labor-saving state; The front end pedal 7 moves in the direction, the moment arm becomes longer, and the mechanism is in a high-speed state; theoretically, under the joint action of the pulling force of the cable 63 and the pushing force of the compression spring 64, the adjusting block 61 can stay in any position of the designed sliding area so that Realize continuously variable speed, because it can be adjusted continuously in theory, and is no longer limited by the number of stages of the existing variable speed bicycle tower wheel, so each rider can find a more suitable riding state and adapt to different road conditions such as uphill and downhill; Eliminate the high price and complex structure of the existing bicycle speed change system; because the speed change on both sides is independently adjusted, it can realize the special experience of different riding speeds and different force levels on the left and right feet, and can realize the
- a connecting rod block is installed on the frame 4, and when the connecting rod 6 runs to the limit position, it is in conflict with it, and it plays the role of load bearing when standing and riding, and the function of limiting and safety protection for the connecting rod 6 is installed on the connecting rod stopper.
- the outside of fixed pulley 5 is equipped with protective cover, and protective cover is fan-shaped structure, and protective cover is installed on the mandrel of fixed pulley 5 by screw simultaneously, and four groups of fixed pulleys 5 outsides on the vehicle frame 4 are all equipped with protective cover.
- the present invention provides a kind of technical solution: a kind of transmission mechanism of up and down reciprocating bicycle, rickshaw, comprising: flywheel 2, vehicle frame 4 and connecting rod 6; flywheel 2 is arranged in two groups , the flywheel 2 contains a ratchet mechanism, and the rear wheel 1 is installed on the rear wheel shaft 9, and two sets of flywheels 2 are respectively installed on both sides of the rear wheel 1, and the two sets of flywheels 2 are respectively equipped with a transmission structure 3;
- Four sets of fixed pulleys 5 are installed in the middle of 4, and a set of fixed pulleys 5 installed on the front of the vertical column of the vehicle frame is sleeved with linkage ropes 8, while the other three sets of fixed pulleys 5 are sleeved with transmission structures 3, and the linkage ropes
- the two ends of 8 are respectively connected to the front ends of the two groups of connecting rods 6, and the adjusting block 61 is sleeved on the outside of the connecting rods
- the transmission structure 3 uses a rope transmission or a standard bicycle chain transmission. During the driving process, each pedal 7 only reciprocates in a circular arc, and the range of this movement is just the most suitable range for the human body to exert force and exert the best force effect. ;Compared with the traditional chain transmission structure, it can use the rider's own body weight to exert force and do work. It overcomes the shortcomings of traditional bicycles that have large changes in the force arm and dead spots to do too much useless work during operation, making riding more comfortable.
- the movement range of the pedal 7 only involves the vertical space of the pedal 7, and the rotation axis of the connecting rod 6 can Shared with the rear wheel shaft 9, of course, the rear wheel shaft 9 may not be used, and the shaft is installed separately on the frame; after the center shaft of the traditional bicycle and the support seat on the frame are omitted, the restrictions on the bicycle frame and the overall layout are relatively small , so that the overall structure of the bicycle is more concise and compact, and the transmission structure is simpler.
- Embodiment 2 This embodiment is a further limitation of Embodiment 1.
- the transmission structure 3 is a transmission rope, the transmission rope is a three-section type, the middle section of the transmission rope is an elastic rope, and the two sides of the elastic rope are inelastic ropes.
- the transmission structure 3 includes a winding drive part 31, a pulley transmission part 32, a connection part 33 and an elastic tension end 34, and the winding drive part 31, the pulley transmission part 32 and the connection part 33 are all arranged in two groups, and the two groups of winding drive parts 31 are respectively mounted on the flywheel 2 on both sides of the rear wheel 1, two groups of pulley transmission parts 32 are respectively installed on the fixed pulleys 5 on both sides of the top of the middle part of the vehicle frame 4, and the lower ends of the two groups of connecting parts 33 are respectively installed on the two groups of connecting parts.
- On the surface of the adjustment block 61 of the rod 6, a group of elastic tension ends 34 are installed on the fixed pulley 5 positioned at the lower side of the vehicle frame 4 .
- the installation method of the transmission structure 3 is: one end of the transmission structure 3 is installed on the connection point of the adjustment block 61 on the connecting rod 6, and then the other end bypasses the fixed pulley 5 installed on the same side of the vehicle frame 4, and then bypasses the The flywheel 2 on the same side bypasses the fixed pulley 5 installed in the middle of the vehicle frame 4 to reach the other side of the vehicle frame 4, and then bypasses the fixed pulley 5 installed on the opposite side of the vehicle frame 4 after bypassing the flywheel 2 on the opposite side , and finally connect with the connection point of the adjustment block 61 on the connecting rod 6 on the opposite side, which has good practical effect and reduces production cost.
- a connecting rod stopper is installed on the frame 4, which plays the role of load-bearing when standing and riding, and the function of limiting and safety protection for the connecting rod 6; when riding, when the left pedal 7 moves downward, the The pedal 7 drives the transmission structure 3 to drive the left flywheel 2 and the rear wheel 1 to rotate forward. At this time, the left connecting rod 6 drives the right pedal 7 to move upward through the linkage rope 8.
- the traction force of the transmission structure 3 Next, the right flywheel 2 rotates, and the right pedal 7 reaches the high point; then the right foot exerts force, and the right pedal 7 moves downward, and the right pedal 7 drives the transmission structure 3 to drive the right flywheel 2 and the rear wheel 1 rotates forward, at this time, the right connecting rod 6 drives the left pedal 7 to move upward through the linkage rope 8, and at the same time, under the action of the traction force of the transmission structure 3, the left flywheel 2 rotates, and the left pedal 7 reaches the high Click the position to complete a motion cycle.
- Embodiment 3 This embodiment is a further limitation of Embodiment 2.
- the number of turns of the winding drive part 31 is at least two groups, and the winding drive part 31 is directly wound on the flywheel 2.
- the rope located in the middle of the winding drive part 31 One point of the ring can be fixed on the flywheel 2.
- the middle position point of the winding circle on the winding driving part 31 is fixed on the flywheel 2 as a non-essential condition, as the static friction force between the toothless flywheel 2 and the rope is enough for transmission and can not be fixed, and then it is bypassed and installed in the middle of the vehicle frame 4
- the fixed pulley 5 reaches the other side of the frame 4, winds around the toothless flywheel 2 on the opposite side for several turns, then bypasses the fixed pulley 5 mounted on the opposite side of the frame 4, and finally adjusts with the connecting rod 6 on the opposite side.
- the block 61 is connected; in combination with actual needs and cost reduction considerations, the rear axle 9 can be selected as the installation rotating shaft of the connecting rod 6.
- the transmission structure 3 is all driven by ropes. Firstly, the lubrication of the traditional bicycle chain is omitted, and secondly, the actual manufacturing cost is reduced. Although the price of the chain is very low driven by China's strong productivity, its production process cannot be reduced. The production process of the rope is much simpler.
- Embodiment 4 This embodiment is a further limitation of Embodiment 1.
- the transmission structure 3 is a three-stage transmission chain, the middle section of the transmission chain is an elastic rope, and the two sides of the transmission chain are bicycle chains. It is a composite structure composed of elastic ropes and bicycle chains.
- the bicycle chain located at both ends of the transmission chain is installed on the chain flywheel 2 at one end, and the other end is installed on the adjustment block 61 on the connecting rod 6 through the fixed pulley 5.
- the three-stage Drive chain is in the process of installing, and corresponding fixed pulley 5 is sprocket wheel.
- Embodiment 5 This embodiment is a further limitation of Embodiment 1.
- a mandrel is installed on the vehicle frame 4, and a fixed pulley 5 is installed on the mandrel.
- Deep groove ball bearings, self-lubricating bearings are installed between the connecting rod 6 and the rear wheel shaft 9, the bearings are free from lubrication in the life cycle, more environmentally friendly, and the friction coefficient is also small.
- Embodiment 6 This embodiment is a further limitation of Embodiment 1.
- the connecting rod 6 includes an adjusting block 61, a connecting rod body 62, a pull cable 63 and a compression spring 64, and the adjusting block 61 is the same size as the connecting rod body 62.
- the adjusting block 61 is slidably installed on the connecting rod body 62
- the compression spring 64 is sleeved on the outside of the connecting rod body 62 , and is installed against the adjusting block 61
- the drag cable 63 is connected to the adjusting block 61 .
- the adjusting block 61 is slidably connected to the outside of the connecting rod body 62. By changing the position of the connecting part 33 of the transmission structure 3 on the connecting rod 6, the speed change function is realized.
- the adjusting block 61 can slide along the connecting rod body 62, and after the spring 64 is compressed The end is fixed on the connecting rod body, the front end is against the adjustment block 61, one end of the drag cable 63 is connected to the adjustment block, and the other end is connected with the rotary handle or finger dial.
- the adjustment block 61 When the drag cable 63 is shortened by the control of the handle, the adjustment block 61 is The pulling force of the drag cable 63 moves toward the rotating shaft 9 at the rear end of the connecting rod, the moment arm becomes shorter, and the mechanism is in a labor-saving state; The front end pedal 7 moves in the direction, the moment arm becomes longer, and the mechanism is in a high-speed state; theoretically, under the joint action of the pulling force of the cable 63 and the pushing force of the compression spring 64, the adjusting block 61 can stay in any position of the designed sliding area so that Realize continuously variable speed, because it can be adjusted continuously in theory, and is no longer limited by the number of stages of the existing variable speed bicycle tower wheel, so each rider can find a more suitable riding state and adapt to different road conditions such as uphill and downhill; Eliminate the high price and complex structure of the existing bicycle speed change system; because the speed change on both sides is independently adjusted, it can realize the special experience of different forces on the left and right feet, and can realize the training or strengthening of specific
- Embodiment 7 This embodiment is a further limitation of Embodiment 1.
- the pulley below the vehicle frame 4 that is in contact with the elastic tension end 34 is installed on the slider, and the slider can slide along the direction of the vehicle frame.
- There are elastic elements If a spring or an elastic rope is connected to the slider, its function is to keep the transmission structure 3 in tension, so that the elastic rope section of the transmission structure 3 can be replaced by an inelastic rope, the structure of the transmission structure 3 is simplified, but the structure of the tensioning pulley is complex Now, this structure can be regarded as a deformation of the transmission structure 3, and the manufacturer can choose a suitable structure according to the actual production situation and specific process.
- Embodiment 8 This embodiment is a further limitation of Embodiment 1.
- a connecting rod stopper is installed on the frame 4, and when the connecting rod 6 runs to the limit position, it is in conflict with it, so as to bear the load when standing and riding.
- Bar 6 carries out the function of limiting and safety protection, and rubber or other softer parts are installed on the connecting rod block, and when connecting rod is in contact with it, play buffering effect, avoid impact feeling, make riding more comfortable.
- this embodiment is a further limitation of any one of specific embodiments one to eight, a protective cover is installed on the outside of the fixed pulley 5, and the protective cover is a fan-shaped structure, and the protective cover is installed on the core of the fixed pulley 5 by screws On the axle, and four groups of fixed pulleys 5 outsides on the vehicle frame 4 are equipped with protective covers.
- the four sets of fixed pulleys 5 on the vehicle frame 4 are equipped with protective covers on the outer sides.
- the setting of the protective covers can cover the fixed pulleys 5 to protect the movement and prevent the transmission structure 3 on the fixed pulleys 5 from falling off. Improve the stability of the bicycle when riding.
- Embodiment 10 This embodiment is a further limitation of Embodiment 1.
- the flywheel 2 is arranged in two groups, and the flywheel 2 includes a ratchet mechanism, and the two rear wheels 1 Installed on the rear axle 9, two groups of flywheels 2 are respectively installed in the middle of the two rear wheels 1, and the two groups of flywheels 2 are respectively equipped with transmission structures 3.
- This mechanism can change the circular motion mode of traditional bicycles and rickshaws into an up and down reciprocating motion mode. It can use the gravity of the human body to do work, significantly improve the dynamic performance of traditional bicycles and rickshaws, and overcome the defects and deficiencies in the transmission process of traditional bicycles and rickshaws. , making riding more labor-saving.
- the up and down reciprocating riding method of this mechanism is more suitable for human physiological structure, meets the needs of human physiological muscle energy, can maximize the force function of human body structure, and reduce unnecessary force exerted by human body;
- the up-and-down reciprocating bicycle and rickshaw transmission mechanism has two long-term riding postures of standing riding and riding, which can be switched at any time to exercise more muscle groups. It also reduces the pressure on the perineum and improves the rider's comfort. sex.
- this mechanism can realize the special experience of different forces applied to the left and right feet, and can realize the training or strengthening of specific legs; it can realize stepless speed change, allowing each rider to find a more suitable riding state , to adapt to different road conditions such as uphill and downhill; the transmission range is large, and a large transmission ratio can be realized, so it is heavier than traditional bicycles and manpower; it saves the existing bicycles with high price and complex structure. The cost is lower.
- This mechanism integrates green travel and fitness.
- the riding method is similar to the weight-bearing squat in the gym. It has a significant exercise effect on the legs and buttocks, reduces the wear and tear on the knee joints of the traditional riding method, and increases the user's new experience;
- the overall structure of the mechanism is simple, the number of parts is small, the design is reasonable, the cost is low, easy to process and maintain, high reliability, long service life, high efficiency, easy to be widely promoted, and has a certain market prospect.
Abstract
一种上下往复式自行车、人力车传动机构，其包括：飞轮(2)，所述飞轮(2)设置为两组，飞轮内含有棘轮机构，两飞轮分别安装在后车轮(1)的两侧，且后车轮(1)安装在后轮轴(9)上，并且两组飞轮(2)上分别安装有传动结构(3)；车架(4)，所述车架(4)的中部安装有四组定滑轮(5)，且车架竖向立柱正面安装的一组定滑轮(5)上套接有联动绳索(8)，另外三组定滑轮(5)上套接有传动结构(3)，联动绳索(8)的两端分别连接在两组连杆(6)的前端；连杆(6)，所述连杆(6)设置为两组，两组连杆分别位于车架(4)的两侧，连杆(6)的前端固定有脚踏(7)，连杆(6)与传动结构(3)相连接。该上下往复式自行车、人力车传动机构在驱动过程中每个脚踏仅在一段圆弧上往复运动，使骑行更为省力。
Description
本发明涉及自行车、人力车领域，具体为一种上下往复式自行车、人力车传动机构。
现有自行车、人力车的传动系统多使用周圈运转式链传动，链条在裤角附近，经常会沾的裤脚很多油污。
现有自行车在骑行中由脚发力，曲柄周圈运转，脚的发力基本是垂直向下，所以力矩从零到最大再到零周而复始不断往复，在这个过程中力臂不断变化，水平时最大，在最高和最低点时为零，人体所施力效果为力臂乘以力，所以有一部分力效果不佳，做了很多无用功，骑行者会多消耗很多体力，导致一般人骑行普通的无变速自行车舒适范围仅能够在短途二三公里内，现有自行车曲柄周圈运转，膝关节活动范围大，体力略好的人用变速车在十公里左右也会感到膝关节不适，很难适合普通人长途骑行；现在的大多数自行车在绝大多数骑行时间内只能采用坐骑的方式，为了能使上力气身体还要前倾，长时间保持这种坐骑姿势，易造成骑行者臀部肌肉和会阴局部压痛难受，也会影响骑行者的骑行意愿。
为了解决自行车、人力车在骑行中力臂变化大，人体施力做了很多无用功，骑行姿势不舒适，膝关节受力大易损伤的现有自行车、人力车的问题，需要发明一种新型的自行车、人力车传动机构。
为实现上述目的，本发明提供如下技术方案：一种上下往复式自行车、人力车传动机构，包括：飞轮，所述飞轮设置为两组，飞轮内包含有棘轮机构，两飞轮分别安装在后车轮的两侧，且后车轮安装在后轮轴上，并且两组飞轮上分别安装有传动结构；车架，所述车架的中部安装有四组定滑轮，且车架竖向立柱正面安装的一组定滑轮上套接有联动绳索，同时另外三组定滑轮上套接有传动结构，联动绳索的两端分别连接在两组连杆的前端，传动结构的两端连接在连杆的调节块上，调节块可沿连杆长度方向移动；连杆, 所述连杆设置为两组，两组连杆分别位于车架的两侧，连杆的前端固定有脚踏，连杆与传动结构相连接。
进一步的，所述传动结构为传动绳索，传动绳索为三段式，传动绳索的中间段为弹性绳索，弹性绳索的两侧段为无弹性绳索，传动结构包括缠绕驱动部、滑轮传动部、连接部和弹性张紧端，且缠绕驱动部、滑轮传动部和连接部均设置为两组，两组缠绕驱动部分别安装在位于后车轮两侧的飞轮上，两组滑轮传动部分别安装在位于车架中部顶端两侧的定滑轮上，两组连接部下端分别安装在两组连杆的调节块表面，一组弹性张紧端安装在位于车架下侧的定滑轮上。
进一步的，所述缠绕驱动部的匝数为至少两组，且缠绕驱动部直接缠绕在飞轮上，同时在其静摩擦力传动不足的情况下位于缠绕驱动部中部的绳环一点固定安装在飞轮上。
进一步的，所述传动结构为三段式传动链条，传动链条的中部段为弹性绳索，同时传动链条的两侧为自行车链条，同时此传动链条是由弹性绳索和自行车链条组成的复合结构，位于传动链条两端的自行车链条，一端安装在链飞轮上，另一端通过定滑轮安装在调节装置上，三段式的传动链条在安装的过程中，相应的定滑轮为链轮。
进一步的，所述传动结构为五段式的传动链条为标准自行车链条后再加一段无弹性绳索，五段式的传动链条上的自行车链条长度小于三段式的传动链条上的自行车链条长度，五段式的传动链条在安装的过程中，与无弹性绳索相接触的定滑轮为槽轮。
进一步的，所述车架上安装有芯轴，且芯轴上安装有定滑轮，芯轴和滑轮座孔、连杆与后轮轴之间安装有轴承。
进一步的，所述连杆包括调节块、连杆体、拉索和压缩弹簧，同时调节块与连杆体的尺寸相适配，调节块滑动安装在连杆体上，同时压缩弹簧和调节块抵触安装，拉索连接在调节块上。
进一步的，所述车架上安装有连杆挡块，并有软物件安装于车架上。
进一步的，所述车架的下方安装有滑块，并有弹性元件与其连接，与传动结构的弹性张紧端相接触的定滑轮安装在滑块上。
进一步的，所述定滑轮的外侧安装有防护罩，且防护罩为扇形结构，同时防护罩通过螺丝安装在定滑轮的芯轴上，并且车架上的四组定滑轮外侧均安装有防护罩。
与现有技术相比，本发明的有益效果是：1.传动结构使用绳索传动或者使用标准自行车链条，在驱动过程中每个脚踏仅在一段圆弧上往复运动，而这个运动的范围恰好是人体最适合发力，施力效果最好的范围；它与传统链传动结构相比，可利用骑行者的自身重力进行发力做功，它克服传统自行车在运转中，存在力臂变化大有死点做过多无用功的缺点，使骑行更为省力。
2.相较传统自行车转轴点后移，脚踏的运动空间仅仅涉及到脚踏处垂直上下的部分，且连杆的转轴的可以和后轮轴共用，当然也可不使用后轮轴，在机架上单独安装轴；这样自行车架体和整体布局所受的限制较小，自行车的整体结构更加简洁紧凑，结构简单，成本低。
3.脚踏的前后移动距离较小，这样使得骑行者可较轻松的采用站立和坐两种骑行姿势，两种骑行姿势各有所长，随时切换，在骑行中使更多的肌肉群得到放松和锻炼，减轻骑行者原来单一坐姿骑行的不适感；即使仅采用坐姿骑行，因为脚踏近乎在一条直线上进行上、下运动，所以坐姿挺拔直立，不必像传统骑行那样上身前倾，会阴部基本不再受压迫，两膝关节运动范围也小了很多，这也增加了骑行舒适度，增大了骑行距离。
4. 左右两连杆上的调节块独立受控，分别调节，故可实现左右脚不同施力大小的特殊体验，可实现特定腿的训练或强化，或左右腿的交替锻炼等，增大骑行乐趣。
5.通过拉索拉动连杆上的调节块，可使调节块在连杆上进行实时横向移动，使得传动结构的连接点在连杆上所处的位置不同，实现变速功能，此结构可省掉现有自行车价格高昂、结构复杂的变速系统，大幅降低了变速车的成本，而且变速档位更为连贯细腻，相当于无级变速的效果，让每位骑行者能更好的匹配骑行速度和所施力量，找到自己更适合的状态，适应上坡下坡等不同路况。
6.脚踏的上下移动范围不是固定的，只要骑行者下踏至自己合适位置即可返回进行下一周期，所以此种传动机构的自行车只要调整车座和车把的高度就可适合身高差异很大的人群，适应性更广。
图1为本发明结构的正视示意图。
图2为本发明结构的传动结构为传动绳索时示意图。
图3为本发明结构的传动结构为五段式传动链条安装在车架上示意图。
图4为本发明结构的图3的侧视图。
图5为本发明结构的图4的三维图。
图6为本发明结构的图5的侧视图。
图7为本发明结构的连杆结构示意图。
图8为本发明结构的调节块示意图。
图9为本发明结构的定滑轮立体示意图。
图10为本发明结构的定滑轮组件剖面示意图。
图11为本发明结构的定滑轮组件车架两侧的定滑轮为链轮时的立体示意图。
图中：1、后车轮；2、飞轮；3、传动结构；31、缠绕驱动部；32、滑轮传动部；33、连接部；34、弹性张紧端；4、车架；5、定滑轮；6、连杆；61、调节块；62、连杆体；63、拉索；64、压缩弹簧；7、脚踏；8、联动绳索；9、后轮轴。
下面将结合本发明实施例中的附图，对本发明实施例中的最佳技术方案进行清楚、完整地描述。
请参阅图1-10，本发明提供一种技术方案：一种上下往复式自行车、人力车传动机构，包括：飞轮2、车架4和连杆6；飞轮2设置为两组，飞轮2内包含有棘轮机构，且后车轮1安装在后轮轴9上，同时两组飞轮2分别安装在后车轮1的两侧，并且两组飞轮2上分别安装有传动结构3；车架4的中部安装有四组定滑轮5，且车架竖向立柱正面安装的一组定滑轮5上套接有联动绳索8，同时另外三组定滑轮5上套接有传动结构3，联动绳索8的两端分别连接在两组连杆6的前端，调节块61套接在连杆6的外侧；两组连杆6的端部安装在后轮轴9上两侧，且连杆6的另一端部外侧固定有脚踏7。
传动结构3使用标准自行车链条传动，在驱动过程中每个脚踏7仅在一段圆弧上往复运动，而这个运动的范围恰好是人体最适合发力，施力效果最好的范围；它与传统链传动结构相比，可利用骑行者的自身体重进行发力做功，它克服传统自行车在运转中，存在力臂变化大有死点做过多无用功的缺点，使骑行更为省力；克服骑行者膝关节活动范围大易损伤的缺点；相较传统自行车转轴点后移，脚踏7的运动范围仅仅涉及到脚踏7处垂直上下的部分空间，且连杆6的转轴的和后轮轴9共用，省去传统自行车的中轴及车架上的支撑座后，自行车架体和自行车的整体布局所受的限制变小，使自行车的整体结构更加简洁紧凑，传动结构更简单。
传动结构3为五段式的传动链条，传动链条的中部段为弹性绳索，同时传动链条的两侧为标准自行车链条，同时标准自行车链条后再加一段无弹性绳索，同时此传动链条是由弹性绳索、自行车链条和无弹性绳索组成的复合结构，传动链条上的自行车链条，与安装在车架4上的链飞轮2相啮合，无弹性绳索段通过定滑轮5后安装在连杆6上的调节块61上。
五段式的传动链条的滚子链长度短，整体质量更轻，与无弹性绳索段相接触的相应的定滑轮5为槽轮；传动链其中一端安装在连杆6上的调节块61上，然后绕过安装在车架4同侧上的定滑轮5，又绕过同侧链飞轮2，此时传动链的链条段与链飞轮2相啮合，后再绕过安装在车架4中间的定滑轮5到达车架4另一侧，绕过异侧的链飞轮2，此时传动链的第二链条段与异侧链飞轮2相啮合，后再绕过装在车架4异侧上的定滑轮5，最后与异侧的连杆6上的调节块61上的连接点安装。
如图1所示：使用者在骑行时脚踏7仅在一段圆弧上往复运动，并因为圆弧半径较大，脚踏7的前后移动距离较小，这样使得骑行者可较轻松的采用站立和坐两种骑行姿势，两种骑行姿势各有所长，随时切换，在骑行中使更多的肌肉群得到放松和锻炼，减轻骑行者原来单一坐姿骑行的不适感；即使仅采用坐姿骑行，因为脚踏7近乎在一条直线上进行上、下运动，两膝关节运动范围也小了很多，坐姿也不必像传统骑行那样上身前倾，由于骑行坐姿挺拔，会阴部基本不再受压迫，这也增加了骑行舒适度，增大了骑行距离。
骑行时，当左侧脚踏7向下移动时，通过左侧脚踏7带动传动结构3驱动左侧飞轮2和后车轮1向前转动，此时左侧连杆6通过联动绳索8带动右侧脚踏7向上运动，与此同时在传动结构3牵引力的作用下，右侧飞轮2回转，右侧脚踏7到达高点位置；然后右脚用力，右侧脚踏7向下移动，通过右侧脚踏7带动传动结构3驱动右侧飞轮2和后车轮1向前转动，此时右侧连杆6通过联动绳索8带动左侧脚踏7向上运动，与此同时在传动结构3牵引力的作用下，左侧飞轮2回转，左侧脚踏7到达高点位置，完成一个运动循环。
车架4上安装有芯轴，且芯轴上安装有定滑轮5，芯轴和滑轮座孔之间安装有带端盖的深沟球轴承，连杆6与后轮轴9之间安装有自润滑轴承，生命周期内免润滑，比较环保，摩擦系数也小。
连杆6包括调节块61、连杆体62、拉索63和压缩弹簧64，同时调节块61与连杆体62的尺寸相适配，调节块61滑动安装在连杆体62上，同时压缩弹簧64套置在连杆体62的外侧，与调节块61抵触安装，拉索63连接在调节块61上，连杆6前端安装有脚踏7。
调节块61滑动连接在连杆体62的外侧，通过改变传动结构3的连接部33在连杆6上的位置，来实现变速功能，调节块61可沿连杆体62滑动，压缩弹簧64后端固定在连杆体上，前端抵在调节块61上，拉索63一端连接在调节块上，另一端与旋转把手或指拨相接，当拉索63受把手控制缩短时，调节块61受拉索63的拉力向连杆后端旋转轴9方向移动，力臂变短，机构处于省力状态；当拉索63受把手控制伸长时，调节块61在压缩弹簧64的作用下向连杆前端脚踏7方向移动，力臂变长，机构处于高速状态；理论上在拉索63的拉力和压缩弹簧64的推力的共同作用下，调节块61可停留在设计滑动区域的任何一个位置从而实现无级变速，因为理论上连续可调，不再受现有变速自行车塔轮级数的限制，所以能让每位骑行者找到更适合的骑行状态，适应上坡下坡等不同路况；省掉现有自行车价格高昂、结构复杂的变速系统；因为两侧变速独立调节，故可实现左右脚不同骑行速度，不同施力大小的特殊体验，可实现特定腿的训练或强化；两个连杆6前端用联动绳索8绕过安装在机架上的定滑轮5连接在一起，使两脚踏7联动。
车架4上安装有连杆挡块，在连杆6运行到极限位置是与其相抵触，起到站骑时承重，对连杆6进行限位和安全保护的功能，连杆挡块上安装有橡胶或其它较软的零件，当连杆与其相接触时起缓冲作用，避免冲击感，使骑行更舒适。
定滑轮5的外侧安装有防护罩，且防护罩为扇形结构，同时防护罩通过螺丝安装在定滑轮5的芯轴上，并且车架4上的四组定滑轮5外侧均安装有防护罩。
车架4上的四组定滑轮5外侧均安装有防护罩，防护罩的设置，可对定滑轮5进行覆盖，起运动防护作用，并使得定滑轮5上的绳索不会发生脱落，提高自行车在骑行时候的稳定性。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
具体实施方式一：请参阅图1-10，本发明提供一种技术方案：一种上下往复式自行车、人力车传动机构，包括：飞轮2、车架4和连杆6；飞轮2设置为两组，飞轮2内包含有棘轮机构，且后车轮1安装在后轮轴9上，同时两组飞轮2分别安装在后车轮1的两侧，并且两组飞轮2上分别安装有传动结构3；车架4的中部安装有四组定滑轮5，且车架竖向立柱正面安装的一组定滑轮5上套接有联动绳索8，同时另外三组定滑轮5上套接有传动结构3，联动绳索8的两端分别连接在两组连杆6的前端，调节块61套接在连杆6的外侧；两组连杆6的端部安装在后轮轴9上两侧，且连杆6的另一端部外侧固定有脚踏7。
传动结构3使用绳索传动或者标准自行车链条传动，在驱动过程中每个脚踏7仅在一段圆弧上往复运动，而这个运动的范围恰好是人体最适合发力，施力效果最好的范围；它与传统链传动结构相比，可利用骑行者的自身体重进行发力做功，它克服传统自行车在运转中，存在力臂变化大有死点做过多无用功的缺点，使骑行更为省力；克服骑行者膝关节活动范围大易损伤的缺点；相较传统自行车转轴点后移，脚踏7的运动范围仅仅涉及到脚踏7处垂直上下的空间，且连杆6的转轴的可以和后轮轴9共用，当然也可不使用后轮轴9，在机架上单独安装轴；省去传统自行车的中轴及车架上的支撑座后，自行车架体和整体布局所受的限制较小，使自行车的整体结构更加简洁紧凑，传动结构更简单。
具体实施方式二：本实施方式为具体实施方式一的进一步限定，传动结构3为传动绳索，传动绳索为三段式，传动绳索的中间段为弹性绳索，弹性绳索的两侧段为无弹性绳索，传动结构3包括缠绕驱动部31、滑轮传动部32、连接部33和弹性张紧端34，且缠绕驱动部31、滑轮传动部32和连接部33均设置为两组，两组缠绕驱动部31分别安装在位于后车轮1两侧的飞轮2上，两组滑轮传动部32分别安装在位于车架4中部顶端两侧的定滑轮5上，两组连接部33下端分别安装在两组连杆6的调节块61表面，一组弹性张紧端34安装在位于车架4下侧的定滑轮5上。
传动结构3的安装方式为：传动结构3其中一端安装在连杆6上的调节块61的连接点上，然后其另一端绕过安装在车架4同侧上的定滑轮5，又绕过同侧飞轮2后再绕过安装在车架4中间的定滑轮5到达车架4的另一侧，绕过异侧的飞轮2后再绕过安装在车架4异侧上的定滑轮5，最后与异侧的连杆6上的调节块61的连接点进行连接，具有良好的实用效果并降低生产成本。
如图1所示：使用者在骑行时脚踏7仅在一段圆弧上往复运动，并因为圆弧半径较大，脚踏7的前后移动距离较小，这样使得骑行者可较轻松的采用站立和坐两种骑行姿势，两种骑行姿势各有所长，随时切换，在骑行中使更多的肌肉群得到放松和锻炼，减轻骑行者原来单一坐姿骑行的不适感；即使仅采用坐姿骑行，因为脚踏7近乎在一条直线上进行上、下运动，所以坐姿也不必像传统骑行那样上身前倾，两膝关节运动范围也小了很多，由于骑行坐姿挺拔，会阴部基本不再受压迫，这也增加了骑行舒适度，增大了骑行距离。
在车架4上安装有连杆挡块，起到站骑时承重，对连杆6进行限位和安全保护的功能；骑行时，当左侧脚踏7向下移动时，通过左侧脚踏7带动传动结构3驱动左侧飞轮2和后车轮1向前转动，此时左侧连杆6通过联动绳索8带动右侧脚踏7向上运动，与此同时在传动结构3牵引力的作用下，右侧飞轮2回转，右侧脚踏7到达高点位置；然后右脚用力，右侧脚踏7向下移动，通过右侧脚踏7带动传动结构3驱动右侧飞轮2和后车轮1向前转动，此时右侧连杆6通过联动绳索8带动左侧脚踏7向上运动，与此同时在传动结构3牵引力的作用下，左侧飞轮2回转，左侧脚踏7到达高点位置，完成一个运动循环。
具体实施方式三：本实施方式为具体实施方式二的进一步限定，缠绕驱动部31的匝数为至少两组，且缠绕驱动部31直接缠绕在飞轮2上，同时位于缠绕驱动部31中部的绳环一点可固定在飞轮2上。
缠绕驱动部31上的缠绕圈的中间位置点固定在飞轮2上非必须条件，如无齿飞轮2与绳索间的静摩擦力大小足够传动也可不固定，然后再绕过安装在车架4中间的定滑轮5到达车架4另一侧，在异侧的无齿飞轮2缠绕数圈后再绕过装在车架4异侧上的定滑轮5，最后与异侧的连杆6上的调节块61连接；结合实际需要和降低成本考虑，可选用后轮轴9作为连杆6的安装旋转轴。
传动结构3全部使用绳索传动，第一省去了传统自行车链条的润滑，第二减少了实际的制造成本，链条虽然在中国强大生产力的推动下价格很低，但其生产工艺是不能减少的，而绳索的生产过程要简略很多。
具体实施方式四：本实施方式为具体实施方式一的进一步限定，传动结构3为三段式传动链条，传动链条的中部段为弹性绳索，同时传动链条的两侧为自行车链条，同时此传动链条是由弹性绳索和自行车链条组成的复合结构，位于传动链条两端的自行车链条，一端安装在链飞轮2上，另一端通过定滑轮5安装在连杆6上的调节块61上，三段式的传动链条在安装的过程中，相应的定滑轮5为链轮。
具体实施方式五：本实施方式为具体实施方式一的进一步限定，车架4上安装有芯轴，且芯轴上安装有定滑轮5，芯轴和滑轮座孔之间安装有带端盖的深沟球轴承，连杆6与后轮轴9之间安装有自润滑轴承，轴承生命周期内免润滑，比较环保，摩擦系数也小。
具体实施方式六：本实施方式为具体实施方式一的进一步限定，连杆6包括调节块61、连杆体62、拉索63和压缩弹簧64，同时调节块61与连杆体62的尺寸相适配，调节块61滑动安装在连杆体62上，同时压缩弹簧64套置在连杆体62的外侧，与调节块61抵触安装，拉索63连接在调节块61上。
调节块61滑动连接在连杆体62的外侧，通过改变传动结构3的连接部33在连杆6上的位置，来实现变速功能，调节块61可沿连杆体62滑动，压缩弹簧64后端固定在连杆体上，前端抵在调节块61上，拉索63一端连接在调节块上，另一端与旋转把手或指拨相接，当拉索63受把手控制缩短时，调节块61受拉索63的拉力向连杆后端旋转轴9方向移动，力臂变短，机构处于省力状态；当拉索63受把手控制伸长时，调节块61在压缩弹簧64的作用下向连杆前端脚踏7方向移动，力臂变长，机构处于高速状态；理论上在拉索63的拉力和压缩弹簧64的推力的共同作用下，调节块61可停留在设计滑动区域的任何一个位置从而实现无级变速，因为理论上连续可调，不再受现有变速自行车塔轮级数的限制，所以能让每位骑行者找到更适合的骑行状态，适应上坡下坡等不同路况；省掉现有自行车价格高昂、结构复杂的变速系统；因为两侧变速独立调节，故可实现左右脚不同施力大小的特殊体验，可实现特定腿的训练或强化；两个连杆6前端用联动绳索8绕过安装在机架上的定滑轮5连接在一起，连杆6前端安装有脚踏7，通过联动绳索8使两脚踏7联动。
具体实施方式七：本实施方式为具体实施方式一的进一步限定，车架4的下方的与弹性张紧端34接触的滑轮安装在滑块上，滑块可沿车架方向滑动，有弹性元件如弹簧或弹性绳索与滑块连接，它的作用是使传动结构3保持张力，这样传动结构3的弹性绳索段可用无弹性绳索代替，传动结构3的结构简化了，但这个张紧滑轮结构复杂了，此结构可以看为是传动结构3的一种变形，可根据实际生产情况和具体工艺，生产厂选择适合自己的结构。
具体实施方式八：本实施方式为具体实施方式一的进一步限定，车架4上安装有连杆挡块，在连杆6运行到极限位置是与其相抵触，起到站骑时承重，对连杆6进行限位和安全保护的功能，连杆挡块上安装有橡胶或其它较软的零件，当连杆与其相接触时起缓冲作用，避免冲击感，使骑行更舒适。
具体实施方式九：本实施方式为具体实施方式一至八任一项的进一步限定，定滑轮5的外侧安装有防护罩，且防护罩为扇形结构，同时防护罩通过螺丝安装在定滑轮5的芯轴上，并且车架4上的四组定滑轮5外侧均安装有防护罩。
车架4上的四组定滑轮5外侧均安装有防护罩，防护罩的设置，可对定滑轮5进行覆盖，起运动防护作用，并使得定滑轮5上的传动结构3不会发生脱落，提高自行车在骑行时候的稳定性。
具体实施方式十：本实施方式为具体实施方式一的进一步限定，当有两个后轮时，如人力三轮车，飞轮2设置为两组，飞轮2内包含有棘轮机构，且两个后车轮1安装在后轮轴9上，同时两组飞轮2分别安装在两个后车轮1的中间，并且两组飞轮2上分别安装有传动结构3。
应当指出的是，对于本领域的普通技术人员来说，在不脱离本构思的前提下，还可以做出若干变形和改进；例如可用连杆机构来代替联动绳索8的滑轮机构实现左右脚踏7的联动，可将脚踏7安装在竖直方向的滑轨上来代替连杆6。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变形，本发明的范围由所附权利要求及其等同物限定。
本机构能将传统自行车、人力车的圆周运动模式改变成为上下往复运动模式，能借助人体自身的重力做功，明显改善传统自行车、人力车的动力性能，克服传统自行车、人力车传动过程中存在的缺陷和不足，使骑行更省力。本机构上下往复的骑行方式相较传统的自行车、人力车更适合人的生理结构，符合人体的生理肌能的需要，能最大限度的发挥人体结构的用力功能，减少人体不必要的施力；上下往复式自行车、人力车传动机构具有站骑和坐骑两种长时间骑行姿态，随时切换，可使更多的肌肉群得到锻炼，仅坐骑时也减轻了会阴部承受的压力，改善骑者舒适性。
本机构因为两侧变速独立调节，故可实现左右脚不同施力大小的特殊体验，可实现特定腿的训练或强化；可实现无级变速，能让每位骑行者找到更适合的骑行状态，适应上坡下坡等不同路况；变速范围大，能实现很大的变速比，所以较传统的自行车、人力车载重量更大；省掉了现有自行车价格高昂、结构复杂的变速系统，所以成本更低。
本机构融绿色出行和健身于一体，骑行方式类似在健身房的负重深蹲，对腿部臀部的锻炼效果显著，减少了传统骑行方式对膝关节的磨损，增加了用户的新体验；本机构整体结构简单，部件数量少，设计合理，成本低廉，易加工维护，可靠性高，使用寿命长，效率高，易于大范围推广，具有一定的市场前景。
Claims (10)
- 一种上下往复式自行车、人力车传动机构，其特征在于，包括：飞轮（2），所述飞轮（2）设置为两组，飞轮内含有棘轮机构，两飞轮分别安装在后车轮（1）的两侧，且后车轮（1）安装在后轮轴（9）上，并且两组飞轮（2）上分别安装有传动结构（3）；车架（4），所述车架（4）的中部安装有四组定滑轮（5），且车架竖向立柱正面安装的一组定滑轮（5）上套接有联动绳索（8），同时另外三组定滑轮（5）上套接有传动结构（3），联动绳索（8）的两端分别连接在两组连杆（6）的前端；连杆（6）, 所述连杆（6）设置为两组，两组连杆分别位于车架（4）的两侧，连杆（6）的前端固定有脚踏（7），连杆（6）与传动结构（3）相连接。
- 根据权利要求1所述的一种上下往复式自行车、人力车传动机构，其特征在于：所述传动结构（3）为绳索传动，传动绳索为三段式，传动绳索的中间段为弹性绳索，弹性绳索的两侧段为无弹性绳索，传动结构（3）包括缠绕驱动部（31）、滑轮传动部（32）、连接部（33）和弹性张紧端（34），且缠绕驱动部（31）、滑轮传动部（32）和连接部（33）均设置为两组，两组缠绕驱动部（31）分别安装在位于后车轮（1）两侧的飞轮（2）上，两组滑轮传动部（32）分别安装在位于车架（4）中部顶端两侧的定滑轮（5）上，两组连接部（33）下端分别安装在两个连杆（6）的调节块（61）上，一组弹性张紧端（34）安装在位于车架（4）下侧的定滑轮（5）上。
- 根据权利要求2所述的一种上下往复式自行车、人力车传动机构，其特征在于：所述缠绕驱动部（31）的匝数为至少两组，且缠绕驱动部（31）直接缠绕在飞轮（2）上，同时在其静摩擦力传动不足的情况下位于缠绕驱动部（31）中部的绳环一点固定安装在飞轮（2）上。
- 根据权利要求1所述的一种上下往复式自行车、人力车传动机构，其特征在于：所述传动结构（3）为链条传动，传动链条为三段式，中部段为弹性绳索，同时传动链条的两侧为自行车链条，同时此传动链条是由弹性绳索和自行车链条组成的复合结构，位于传动链条两端的自行车链条，一端安装在链飞轮（2）上，另一端通过定滑轮（5）安装在两个连杆（6）的调节块（61）上。
- 根据权利要求1所述的一种上下往复式自行车、人力车传动机构，其特征在于：所述传动结构（3）为链条传动，传动链条为五段式，中部段为弹性绳索，两侧为标准自行车链条，自行车链条后再加一段无弹性绳索，五段式的传动链条上的自行车链条长度小于三段式的传动链条上的自行车链条长度，五段式的传动链条在安装的过程中，与无弹性绳索相接触的定滑轮（5）为槽轮。
- 根据权利要求1所述的一种上下往复式自行车、人力车传动机构，其特征在于：所述车架（4）上安装有芯轴，且芯轴上安装有定滑轮（5），连杆（6）的端部安装在后轮轴（9）两侧，芯轴和滑轮座孔、连杆（6）与后轮轴（9）之间安装有轴承。
- 根据权利要求1所述的一种上下往复式自行车、人力车传动机构，其特征在于：所述连杆（6）包括调节块（61）、连杆体（62）、拉索（63）和压缩弹簧（64），且调节块（61）与连杆体（62）的尺寸相适配，调节块（61）滑动安装在连杆体（62）上，同时压缩弹簧（64）套置在连杆体（62）的外侧，与调节块（61）抵触安装，拉索（63）连接在调节块（61）上。
- 根据权利要求1所述的一种上下往复式自行车、人力车传动机构，其特征在于：所述车架（4）的下方安装有滑块，并有弹性元件与其连接，与传动结构（3）的弹性张紧端（34）相接触的定滑轮（5）安装在滑块上。
- 根据权利要求1所述的一种上下往复式自行车、人力车传动机构，其特征在于：所述车架（4）上安装有连杆挡块。
- 根据权利要求1-9任一项所述的一种上下往复式自行车、人力车传动机构，其特征在于：所述定滑轮（5）的外侧安装有防护罩，同时防护罩通过螺丝安装在定滑轮（5）的芯轴上，并且车架（4）上的四组定滑轮（5）外侧均安装有防护罩。
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| CN216468293U (zh) * | 2021-08-04 | 2022-05-10 | 辛永升 | 一种上下往复式自行车、人力车传动机构 |
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| JP2011068326A (ja) * | 2009-09-25 | 2011-04-07 | Birejion:Kk | 自転車往復式ペダル装置 |
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