CN216834136U - Power transmission device for rickshaw and rickshaw - Google Patents
Power transmission device for rickshaw and rickshaw Download PDFInfo
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- CN216834136U CN216834136U CN202122996023.0U CN202122996023U CN216834136U CN 216834136 U CN216834136 U CN 216834136U CN 202122996023 U CN202122996023 U CN 202122996023U CN 216834136 U CN216834136 U CN 216834136U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 77
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000000306 component Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a power transmission device of a rickshaw and the rickshaw. The power transmission device of the rickshaw comprises a bracket, three rotating shafts and a transmission assembly, wherein the connecting positions of the rotating shafts and the bracket form a triangular structure; the transmission assembly comprises six transmission rods and a pedal, the transmission rods are respectively fixedly connected to two ends of the three rotating shafts, the transmission rods positioned on the same side of the bracket are arranged in the same direction, the transmission rods positioned on different sides of the bracket are arranged in opposite directions, and a connecting assembly is arranged between the pedal and the three transmission rods positioned on the same side of the bracket and forms rotating connection; the connecting component is utilized, namely the total length of the connecting plate and the power-assisted rod in the horizontal direction is used as a part of the force arm, the projection of the connecting plate and the projection of the power-assisted rod on the straight line of the driving rod can increase the length of the force arm, the moment is increased, and a user can save more labor; the length in the vertical direction is fixed, and the possibility of bottom contact cannot be increased when the horizontal length lifting force arm is increased.
Description
Technical Field
The utility model relates to the technical field of rickshaw, in particular to a power transmission device of a rickshaw and the rickshaw.
Background
The manpower vehicle is a vehicle which uses manpower to drive a transmission device and finally drives wheels to rotate so as to realize the running function, and is also called as a bicycle, a bicycle and the like. The bicycle comprises a bicycle frame, a handlebar, a driving system, tires and the like, wherein the driving system is a core component and generally comprises pedals, a middle shaft, a chain wheel, a crank, a chain, a flywheel, a rear shaft, a rear wheel and the like. The pedal force of the human foot is transmitted by the crank, the chain wheel, the chain, the flywheel, the rear axle and other parts by the pedal, so that the bicycle continuously moves forward. The pedals are directly connected with the middle shaft through the crank, the pedaling force of a person is transmitted to the middle shaft to rotate, and finally the rear wheel is driven by the chain to achieve the driving effect.
However, the existing rickshaw driving device has certain problems, the labor saving problem needs to be considered during the design of the rickshaw, the labor is saved by increasing the length of the arm of force, the pedal is directly connected with the middle shaft only through the crank, the effect of increasing the arm of force can be realized only by increasing the length of the crank, and the length of the crank is limited in order to ensure that the pedal does not contact the ground when rotating, so that the labor is difficult to be further saved by increasing the arm of force.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a power transmission device of a rickshaw and the rickshaw, and solves the problem that the crank length is limited in the prior art, so that the labor cannot be further saved by increasing the force arm.
The utility model provides a power transmission device of a rickshaw, which comprises a bracket, three rotating shafts arranged on the bracket and transmission components respectively arranged at two sides of the bracket, wherein the connecting positions of the rotating shafts and the bracket form a triangular structure, the axis of each rotating shaft is vertical to the plane of the triangular structure, and a transmission disc is fixedly sleeved on one rotating shaft;
the transmission assembly comprises transmission rods and pedals, the transmission rods are six in number and are fixedly connected to two ends of the three rotating shafts respectively, the transmission rods located on the same side of the support are arranged in the same direction, the transmission rods located on different sides of the support are arranged in the opposite direction, the pedals are two in number, and each pedal and the three transmission rods located on the same side of the support are provided with connecting assemblies and are connected in a rotating mode.
The principle of the utility model is as follows: the connecting component connected with the three transmission rods simultaneously and the three transmission rods form a stable structure, and the connecting component does not rotate in the rotation process of the transmission rods, so that when the pedals are indirectly connected with the transmission rods through the connecting component, the connecting component can be part of the force arm along the length in the horizontal direction under the condition that the transmission rods are in the vertical state, the length of the force arm is increased, and when the transmission rods are in the vertical state, the connecting component can be kept unchanged along the length in the horizontal direction, so that the problem of bottom contact can not be caused.
Furthermore, the support is formed by connecting three nonparallel straight rods, and the rotating shafts are respectively arranged on connecting points formed by the three straight rods.
Furthermore, the connecting assembly comprises a connecting plate and a boosting rod arranged on the connecting plate, and the connecting plate is perpendicular to the rotating shaft and is respectively and rotationally connected with the three transmission rods on the same side; the boosting rod is horizontally arranged, one end of the boosting rod is fixedly arranged on the connecting plate, and the other end of the boosting rod is rotatably connected with the pedals.
Furthermore, perpendicular switching sections are respectively arranged at two ends of the transmission rod and are respectively matched with the rotating shaft or the connecting assembly to form rotating connection, so that the planes of any two transmission rods in the three transmission rods on the same side are not parallel to the plane of the triangular structure.
The utility model further provides a rickshaw which comprises the power transmission device of the rickshaw.
Furthermore, the rickshaw comprises at least two wheels.
Compared with the prior art, the utility model has the following beneficial effects:
1. the connecting component is utilized, namely the total length of the connecting plate and the power-assisted rod in the horizontal direction is used as a part of the force arm, and as long as the transmission rod is not in a vertical state, the projections of the connecting plate and the power-assisted rod on the straight line of the transmission rod can increase the length of the force arm, so that the torque is increased, and a user can save more labor;
2. According to the utility model, the connecting assembly keeps the self-rotation-free state by utilizing a triangular stability principle, so that the existence of the force arm is maintained, the length in the vertical direction is fixed because the force arm does not rotate, the possibility of bottom contact is not increased when the horizontal length is increased to lift the force arm, and the lifting upper limit of the force arm is expanded.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
FIG. 2 is a side view of a single-sided structure of the present invention.
In the above drawings: 1. a support; 2. a transmission rod; 3. a connecting plate; 4. a booster lever; 5. pedaling; 6. a drive plate; 11. a rotating shaft; 21. and (4) switching the sections.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the embodiments.
As shown in fig. 1, the utility model provides a power transmission device for a rickshaw, which comprises a bracket 1, three rotating shafts 11 arranged on the bracket 1 and transmission assemblies respectively arranged at two sides of the bracket 1, wherein the connecting positions of the rotating shafts 11 and the bracket 1 form a triangular structure, the axis of each rotating shaft 11 is vertical to the plane of the triangular structure, and a transmission disc 6 is fixedly sleeved on one rotating shaft 11; the transmission disc 6 is a disc provided with an external gear, a driven disc (not shown in the figure) is correspondingly arranged on the other wheel or the wheel shaft of the rickshaw, the external gear is also arranged on the driven disc, and the chains are simultaneously sleeved on the outer sides of the transmission disc 6 and the driven disc, so that the wheels of the rickshaw are driven, and the effect of driving the rickshaw to run is achieved.
In this embodiment, the drive assembly includes transfer line 2 and pedal 5, transfer line 2 is total six and respectively fixed connection at the both ends of three pivot 11, wherein lies in the support 1 and sets up with the transfer line 2 syntropy of one side, lies in the reverse setting of transfer line 2 of support 1 different sides, pedal 5 is total two, is equipped with coupling assembling and forms the rotation connection between each pedal 5 and the three transfer lines 2 that lie in support 1 with one side.
In the preferred embodiment, the support 1 is formed by connecting three non-parallel straight bars, the rest of the straight bars are connected with other parts of the rickshaw to form a body structure, and the rotating shafts 11 are respectively arranged on connecting points formed by the three straight bars, so that the support 1 forms a triangular structure and has stronger stability. It should be noted that, two ends of the transmission rod 2 are respectively provided with a vertical switching section 21, and the switching sections 21 are respectively matched with the rotating shaft 11 or the connecting assembly to form a rotating connection, so that the planes of any two transmission rods 2 in the three transmission rods 2 on the same side are not parallel to the plane of the triangular structure; therefore, the three transmission rods 2 can not mutually obstruct in the process of co-rotation, so that the transmission rods 2 can keep stable operation.
In a further scheme, the connecting assembly comprises a connecting plate 3 and a boosting rod 4 arranged on the connecting plate 3, wherein the connecting plate 3 is perpendicular to the rotating shaft 11 and is respectively in rotary connection with the three transmission rods 2 on the same side; the boosting rod 4 is horizontally arranged, one end of the boosting rod is fixedly arranged on the connecting plate 3, and the other end of the boosting rod is rotatably connected with the pedal 5. Because of connecting plate 3 is connected with three transfer lines 2 simultaneously, consequently fixed under the effect of triangle-shaped stability, can't carry out the rotation, corresponding, as connecting plate 3 can not the rotation at the helping hand pole 4 of horizontal direction extension to play the effect that promotes the arm of force.
As shown in fig. 2, the single-sided structure of the stent 1 is used to further illustrate the implementation of the present invention: when the transmission rod 2 is in a horizontal state, the boosting rod 4 is parallel to the transmission rod 2, at the moment, the boosting rod 4 and the connecting plate 3 are in a fixed state relative to the three transmission rods 2 because of the incapability of rotating, and the length of the force arm is equal to the total length of the transmission rod 2, the connecting plate 3 and the boosting rod 4 in the horizontal direction and is greater than the length of a single transmission rod 2; when the transmission rod 2 rotates to a state between horizontal and vertical, the increased moment arm is reduced to the projection length of the connection plate 3 and the boosting rod 4 on the straight line of the transmission rod 2 because the connection plate 3 and the boosting rod 4 are still kept horizontal; when the transmission rod 2 rotates to a vertical state, the connecting plate 3 and the boosting rod 4 are vertical to the transmission rod 2, the projection length is zero, and therefore the length of the force arm is not increased in the state. In summary, under the condition that the length of the transmission rod 2, i.e. the crank in the prior art, is not changed, the connecting plate 3 and the assisting rod 4 can lift the force arm, so as to lift the moment, and the same effect can be achieved only by applying less force.
The utility model also provides a rickshaw which comprises the power transmission device of the rickshaw. Furthermore, the rickshaw comprises at least two wheels.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. The power transmission device of the rickshaw is characterized in that: the transmission mechanism comprises a bracket, three rotating shafts arranged on the bracket and transmission assemblies respectively arranged on two sides of the bracket, wherein the connecting positions of the rotating shafts and the bracket form a triangular structure, the axis of each rotating shaft is vertical to the plane of the triangular structure, and a transmission disc is fixedly sleeved on one rotating shaft;
the transmission assembly comprises transmission rods and pedals, the transmission rods are six in number and are fixedly connected to two ends of the three rotating shafts respectively, the transmission rods located on the same side of the support are arranged in the same direction, the transmission rods located on different sides of the support are arranged in the opposite direction, the pedals are two in number, and each pedal and the three transmission rods located on the same side of the support are provided with connecting assemblies and are connected in a rotating mode.
2. The power transmission device of a human powered vehicle as claimed in claim 1, wherein: the support is formed by connecting three non-parallel straight rods, and the rotating shafts are respectively arranged on connecting points formed by the three straight rods.
3. The power transmission device of a human-powered vehicle as claimed in claim 1, wherein: the connecting assembly comprises a connecting plate and a boosting rod arranged on the connecting plate, and the connecting plate is perpendicular to the rotating shaft and is respectively in rotating connection with the three transmission rods on the same side; the boosting rod is horizontally arranged, one end of the boosting rod is fixedly arranged on the connecting plate, and the other end of the boosting rod is rotatably connected with the pedals.
4. The power transmission device of a human-powered vehicle as claimed in claim 1, wherein: the two ends of the transmission rod are respectively provided with a vertical switching section, and the switching sections are respectively matched with the rotating shaft or the connecting assembly to form rotating connection, so that the planes of any two transmission rods in the three transmission rods on the same side are not parallel to the plane of the triangular structure.
5. Rickshaw, its characterized in that: comprising a human powered vehicle power transmission device as claimed in any one of claims 1 to 4.
6. The human-powered vehicle of claim 5, wherein: the rickshaw comprises at least two wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122996023.0U CN216834136U (en) | 2021-11-30 | 2021-11-30 | Power transmission device for rickshaw and rickshaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122996023.0U CN216834136U (en) | 2021-11-30 | 2021-11-30 | Power transmission device for rickshaw and rickshaw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216834136U true CN216834136U (en) | 2022-06-28 |
Family
ID=82104633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122996023.0U Active CN216834136U (en) | 2021-11-30 | 2021-11-30 | Power transmission device for rickshaw and rickshaw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216834136U (en) |
-
2021
- 2021-11-30 CN CN202122996023.0U patent/CN216834136U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Power transmission device and rickshaw Granted publication date: 20220628 Pledgee: Bank of China Limited by Share Ltd. Three Gorges Branch Pledgor: Hubei Wanxin Precision Casting & Forging Inc. Registration number: Y2024980008048 |