CN113799904A - Reciprocating transmission mechanism for bicycle and rickshaw - Google Patents
Reciprocating transmission mechanism for bicycle and rickshaw Download PDFInfo
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- CN113799904A CN113799904A CN202010539686.7A CN202010539686A CN113799904A CN 113799904 A CN113799904 A CN 113799904A CN 202010539686 A CN202010539686 A CN 202010539686A CN 113799904 A CN113799904 A CN 113799904A
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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
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Abstract
The invention provides a reciprocating bicycle and rickshaw transmission mechanism, which comprises a double-ratchet rear wheel, a flywheel, a transmission chain (transmission rope), a frame, a fixed pulley, a connecting rod, a pedal, a linkage rope and a rear wheel shaft, wherein the double-ratchet rear wheel is connected with the flywheel through a transmission rope; the two flywheels are arranged on two sides of the double-ratchet wheel rear wheel, the transmission chain (transmission rope) is in a sectional type, and the rear section has larger elasticity; one elastic end of a transmission chain (transmission rope) is fixed on the frame or the front end of the connecting rod, then passes through the flywheel and the fixed pulley, and finally is respectively connected with the corresponding connecting rod; the connecting rod can be arranged on the frame to design a shaft, and a rear wheel shaft can also be used; the front ends of the two connecting rods are connected together by a linkage rope which bypasses a fixed pulley on the rack; the front end of the connecting rod arm is provided with a pedal. The bicycle can do work by means of the gravity of the human body, furthest exerts the force application function of the human body structure and improves the comfort of a rider, and the bicycle has fewer parts, is easy to process and maintain and is easy to popularize in a large range.
Description
Technical Field
The present invention belongs to the field of bicycle and rickshaw transmission, and is one new kind of transmission mechanism for bicycle and rickshaw.
Background
The transmission systems of the existing bicycles and rickshaws mostly use periphery operation type chain transmission, the chain is near the trouser corners and can often be stained with a lot of greasy dirt on the trouser legs, and the center distance of the chain with common quality is not required to be adjusted for a long time because the chain is worn and stressed on the common non-tensioned bicycle.
The existing bicycle is powered by feet during riding, the crank runs around, the moment is repeated from zero to the maximum and then to zero, the moment is not repeated, in the process, the moment arm is not changed in sections, a human body applies force to do a lot of useless work, a rider can consume much physical power during long-distance riding, the comfortable range of a common non-variable speed bicycle ridden by common people can only be within two kilometers and three kilometers in a short distance, the existing bicycle runs around, the activity range of knee joints is large, the rider with slightly good physical power can feel the discomfort of knee joint soreness even when the bicycle is ridden by a speed changing bicycle within ten kilometers, and the existing bicycle is difficult to be suitable for the common people to ride for long distance.
Therefore, a new transmission mechanism for bicycles and rickshaws needs to be designed to solve the problems in the prior art.
Disclosure of Invention
In order to overcome the defects of the existing bicycle and rickshaw transmission, the invention provides a reciprocating bicycle and rickshaw transmission mechanism. The transmission mechanism of the reciprocating bicycle and the rickshaw adopts chain or rope transmission, has good stability, compact structure and uniform force application, can realize speed change through different pedal treading positions, and can realize speed change through a tower type flywheel and speed change structure when the chain transmission is adopted. In the driving process, each pedal connecting rod only reciprocates on a section of circular arc, and the motion range is just the range which is most suitable for a human body to exert force and has the best force application effect; compared with the traditional chain transmission structure, the bicycle can utilize the self gravity of a rider to apply force and do work, and overcomes the defect that the traditional bicycle has zero force arm and dead points to do excessive useless work in the operation process; the defect that the injury is easily caused by overlarge knee joint moving range of a rider is overcome; in addition, the movement track of the pedals only relates to the front part of the mounting shaft, and the mounting shaft can be shared with the rear wheel shaft, or the rear wheel shaft is not used, and the shaft is separately mounted on the rack; the invention moves backwards a lot relative to the rotating shaft point of the transmission bicycle, so that the limitation on the bicycle frame body and the whole layout is small, the distance between the front wheel and the rear wheel can be reduced, and the whole structure of the bicycle is more compact and smaller. The transmission of the invention can also use ropes completely, thus saving lubrication maintenance in chain transmission.
In order to achieve the purpose, the invention adopts the following technical scheme: a reciprocating bicycle and rickshaw transmission mechanism comprises a double-ratchet rear wheel, a flywheel, a transmission chain (transmission rope), a frame, a fixed pulley, a connecting rod, a pedal, a linkage rope and a rear wheel shaft; the two flywheels are arranged on two sides of the double-ratchet wheel rear wheel, the transmission chain (transmission rope) is in a sectional type, the rear section has larger elasticity and smaller rigidity, and the function of the transmission chain (transmission rope) is to provide restoring force, so that the corresponding transmission chain (transmission rope) is reset on the flywheels when the pedals move upwards. One end of the elastic part is fixed at the front end of the frame or the connecting rod, and the elastic part is suggested to be arranged on the frame in consideration of stable operation, and then a transmission chain (a transmission rope) passes through the flywheel and then bypasses a fixed pulley arranged on the frame, and finally is respectively connected with the corresponding connecting rod. For better practical effect and lower production cost, it is suggested to use the rear wheel axle as the rotation axis of the connecting rod, and certainly, the shaft can be installed on the frame additionally.
Furthermore, a mandrel is arranged on the frame, a fixed pulley is arranged on the mandrel, and plastic bearings similar to those of the easily-checked bearing are suggested to be arranged between the mandrel and the seat hole and between the connecting rod and the shaft, so that the frame is light in weight, free of lubrication, compact in structure and relatively environment-friendly.
Furthermore, the front end of the connecting rod is provided with a pedal, one long pedal or two standard pedals can be arranged, or the pedal is designed to be adjustable along the length direction of the connecting rod, the length of the force arm can be changed by different pedal positions, the speed change is realized, and the pedal is suitable for different road conditions such as uphill and downhill. The connecting rod is provided with a plurality of rope connecting positions, and each rider can find the proper state through different rope connecting positions. The lever arms at the front ends of the two connecting rods are connected together by a linkage rope bypassing the fixed pulley arranged on the rack, and have the functions of pedal limiting and pedal linkage ensuring.
Furthermore, when chain transmission is used, a tower type flywheel and a speed change structure can be used, so that more choices of speed change can be made, and special experience of different riding speeds of the left foot and the right foot under the same arm length can be realized.
The invention has the advantages of less parts, reasonable design, simple integral structure, low cost, easy processing and maintenance, high reliability, long service life, high efficiency and easy large-scale popularization. The pedal plate moves up and down in a reciprocating way to replace circular motion, so that the pedal plate is more in line with the physiological structure of the human body and can do work by means of the gravity of the human body.
Drawings
FIG. 1 is a block diagram of a bicycle transmission provided by the present invention.
FIG. 2 is a front elevational view of the bicycle transmission provided by the present invention.
FIG. 3 is an axial schematic view of the bicycle transmission provided by the present invention.
Fig. 4 is a structural view of a bicycle cord transmission mechanism according to embodiment 2 of the present invention.
Fig. 5 is a front elevational view of a bicycle cord transmission mechanism of embodiment 2 provided in accordance with the present invention.
Description of reference numerals:
1. double-ratchet rear wheel 2, flywheel 3, transmission chain 4, frame 5, fixed pulley 6, connecting rod 7, pedal 8, linkage rope 9 and rear wheel shaft
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by the following specific embodiments in conjunction with the accompanying drawings.
Example 1
Referring to fig. 1, the invention discloses a transmission mechanism of a reciprocating bicycle and a rickshaw, comprising a double-ratchet rear wheel 1, a flywheel 2, a transmission chain 3, a frame 4, a fixed pulley 5, a connecting rod 6, a pedal 7, a linkage rope 8 and a rear wheel shaft 9; two chain flywheels are arranged on two sides of the double-ratchet wheel rear wheel. In this embodiment, the transmission chain is divided into three sections, the first section is a round or flat elastic rope, the elongation is large, the elastic force is small, and the chain wheel restoring force can be provided, the middle section is a standard bicycle chain, and the last section is a round or flat inelastic rope. The elastic end is fixed at the front end of the frame or the connecting rod, the elastic rope section is still in a slightly stretching state when the pedal is positioned at the uppermost end during installation, the middle chain section passes through the chain flywheel and is meshed with the chain flywheel, and the rear section of inelastic rope section bypasses the fixed pulley arranged on the frame and is finally connected with the corresponding connecting rod respectively. The rear wheel axle can be selected as the mounting rotating shaft of the connecting rod in consideration of combining practical requirements and cost reduction. The frame is provided with the mandrel, the fixed pulley is arranged on the mandrel, the easy-grid plastic bearings can be arranged between the mandrel and the seat hole and between the connecting rod and the shaft, and the plastic shaft is light in bearing weight, free of lubrication, compact in structure and relatively environment-friendly. The connecting rod is provided with a plurality of rope connecting positions, and each rider can find the proper state through the different rope connecting positions. The front end of the connecting rod is provided with the pedal, one long pedal or two standard pedals can be arranged, or the pedal is designed to be adjustable along the length direction of the connecting rod, the length of the force arm can be changed through different positions of the pedal, the speed change is realized, and the pedal is suitable for different road conditions such as uphill and downhill. And the flywheel can use tower chain flywheel, and the special experience of the different speeds of riding of left and right feet under same arm length can be realized to the variable speed structure in addition, also makes the variable speed have more better selections. The front ends of the two connecting rod arms are connected together by a linkage rope to bypass a fixed pulley arranged on the rack, and the functions of pedal limiting and pedal linkage guaranteeing are realized. When riding, when the left pedal 7 moves downwards, the left pedal 7 drives the left transmission chain 3 to drive the left flywheel 2 and the double-ratchet wheel rear wheel 1 to rotate forwards, at the moment, the elastic rope section of the left transmission chain 3 is elongated, meanwhile, the right pedal 7 is driven to move upwards through the linkage rope 8, meanwhile, under the action of the elastic restoring force of the elastic rope section of the right transmission chain 3, the right flywheel rotates, the right transmission chain 3 returns to the shortest state again, and the elastic rope section rope resets.
Of course, the rear inelastic rope section in the transmission chain 3 can be directly replaced by lengthening the chain section, and only the fixed pulley mounted on the rack needs to be changed into the chain wheel, so that the whole consistency is good, but the defect of the method is that the manufacturing cost is increased, the lubrication range is enlarged, the sanitary condition is poor, and the method is only used as a reference.
The right side transmission mechanism is the same as the left side transmission mode, and the transmission process and the left side are alternately carried out.
Example 2
Referring to fig. 4, the invention discloses a transmission mechanism of a reciprocating bicycle and a rickshaw, comprising a double-ratchet rear wheel 1, a flywheel 2, a transmission rope 3, a frame 4, a fixed pulley 5, a connecting rod 6, a pedal 7, a linkage rope 8 and a rear wheel shaft 9; two flywheels are arranged on two sides of the double-ratchet wheel rear wheel. In this embodiment, the transmission rope is divided into two sections, the first section is a round elastic rope, the elongation is large, the elastic force is small, the sprocket restoring force can be provided, and the second section is a round inelastic rope. One end of the elastic rope is fixed at the front end of the frame or the connecting rod, the elastic rope section is still in a slightly stretched state when the pedals are positioned at the uppermost end during installation, the inelastic rope is wound on the flywheel for a plurality of circles, the middle position points of the wound circles are fixed on the flywheel, then the inelastic rope is wound on the fixed pulley arranged on the frame, and finally the inelastic rope is respectively connected with the corresponding connecting rods. The rear wheel axle can be selected as the mounting rotating shaft of the connecting rod in consideration of combining practical requirements and cost reduction. The frame is provided with the mandrel, the fixed pulley is arranged on the mandrel, the easy-grid plastic bearings can be arranged between the mandrel and the seat hole and between the connecting rod and the shaft, and the plastic shaft is light in bearing weight, free of lubrication, compact in structure and relatively environment-friendly. The connecting rod is provided with a plurality of rope connecting positions, and each rider can find the proper state through the different rope connecting positions. The front end of the connecting rod is provided with the pedal, one long pedal or two standard pedals can be arranged, or the pedal is designed to be adjustable along the length direction of the connecting rod, the length of the force arm can be changed through different positions of the pedal, the speed change is realized, and the pedal is suitable for different road conditions such as uphill and downhill. The front ends of the two connecting rod arms are connected together by a linkage rope to bypass a fixed pulley arranged on the rack, and the functions of pedal limiting and pedal linkage guaranteeing are realized. When the bicycle is ridden, when the left pedal 7 moves downwards, the left pedal 7 drives the left transmission rope 3 to drive the left flywheel 2 and the double-ratchet wheel rear wheel 1 to rotate forwards, at the moment, the front half part of the inelastic rope wound on the flywheel by the left transmission rope 3 is unfolded, the back half part of the inelastic rope wound on the flywheel continues to increase the winding number of turns on the flywheel, the elastic rope section connected with the flywheel is stretched, meanwhile, the right pedal 7 is driven to move upwards by the linkage rope 8, meanwhile, under the action of the elastic restoring force of the elastic rope section of the right transmission rope 3, the right flywheel rotates, the right transmission rope 3 returns to the shortest state again, and the elastic rope section is reset.
The right side transmission mechanism is the same as the left side transmission mode, and the transmission process and the left side are alternately carried out.
In conclusion, the reciprocating bicycle and rickshaw transmission mechanism can change the circular motion mode of the traditional bicycle and rickshaw into the vertically reciprocating circular motion, obviously improve the power performance of the traditional bicycle and rickshaw, overcome the defects and shortcomings in the transmission process of the traditional bicycle and rickshaw, enable the transmission of the bicycle and the rickshaw to better meet the requirements of human physiological muscle energy, exert the force exertion function of the human body structure to the maximum extent, reduce the unnecessary force exertion of the human body, improve the comfort of a rider, increase the new experience of a user and have certain market prospect.
The above-mentioned embodiments only express two specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the present concepts. For example, the linkage of the left and right pedals can be realized by using a connecting rod instead of the linkage rope and the pulley mechanism, and the elastic section of the transmission chain (transmission rope) can be replaced by using a spring, which belong to the protection scope of the invention. Therefore, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A reciprocating bicycle and rickshaw transmission mechanism comprises a double-ratchet rear wheel, a flywheel, a transmission chain (transmission rope), a frame, a fixed pulley, a connecting rod, a pedal, a linkage rope and a rear wheel shaft; the bicycle is characterized in that two flywheels are arranged on two sides of a double-ratchet wheel rear wheel, a fixed pulley is arranged on a frame, a transmission chain (transmission rope) is in a sectional type, and the rear section has larger elasticity and provides return power for the reset of the transmission chain (transmission rope); one elastic end of a transmission chain (transmission rope) is fixed at the front end of the rack or the connecting rod, and then the transmission chain (transmission rope) passes through a flywheel and then bypasses a fixed pulley arranged on the rack and is finally connected with the corresponding connecting rod respectively; the connecting rod can be arranged on the stand and can be independently designed with a shaft, and a rear wheel shaft can also be used; the front ends of the two connecting rods are connected together by a linkage rope which bypasses a fixed pulley arranged on the frame; the front ends of the two connecting rod arms are provided with pedals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010539686.7A CN113799904A (en) | 2020-06-15 | 2020-06-15 | Reciprocating transmission mechanism for bicycle and rickshaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010539686.7A CN113799904A (en) | 2020-06-15 | 2020-06-15 | Reciprocating transmission mechanism for bicycle and rickshaw |
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| Publication Number | Publication Date |
|---|---|
| CN113799904A true CN113799904A (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010539686.7A Pending CN113799904A (en) | 2020-06-15 | 2020-06-15 | Reciprocating transmission mechanism for bicycle and rickshaw |
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| CN (1) | CN113799904A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023098542A1 (en) * | 2021-08-04 | 2023-06-08 | 辛永升 | Up-and-down reciprocating type bicycle and rickshaw transmission mechanism |
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2020
- 2020-06-15 CN CN202010539686.7A patent/CN113799904A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023098542A1 (en) * | 2021-08-04 | 2023-06-08 | 辛永升 | Up-and-down reciprocating type bicycle and rickshaw transmission mechanism |
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