CN111452900A

CN111452900A - Bicycle energy storage helping hand system

Info

Publication number: CN111452900A
Application number: CN202010147841.0A
Authority: CN
Inventors: 林明章
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-07-28

Abstract

A bicycle energy storage assist system comprising: a hollow mandrel, which is pivoted on a frame, a driving fluted disc and a first fluted disc are connected with the hollow mandrel and are respectively positioned at two sides of the frame; a crank spindle located within the hollow spindle and disposed coaxially with the hollow spindle; a first shell connected with the first fluted disc; the second shell is connected with the crank mandrel and corresponds to the first shell; the two ends of the energy storage element are respectively connected with the first shell and the second shell; a receiving member connected to the crank spindle and adjacent to the driving fluted disc; and the shaft seat is connected with the driving fluted disc and is provided with a connecting shaft which moves relative to the connected piece in a connecting or separating way, so that the first shell and the second shell rotate simultaneously or the first shell rotates independently to control the power storage component to output power or store power.

Description

Bicycle energy storage helping hand system

Technical Field

The invention relates to a bicycle, in particular to an energy storage power assisting system of the bicycle.

Background

The common bicycle is pedaled by manpower, when the riding time is longer, the terrain change is large, the load is heavier, or a user with a long age can make great effort to deepen the pedalling feeling of the feet, so that the bicycle is not easy to ride. The pedal is pedaled by two feet, a crank connected with the pedal drives a fluted disc in the front to rotate, and transmits force to a flywheel (namely a gear of a rear wheel) through a chain, and the flywheel is connected with a hub of the rear wheel to drive the bicycle to move forwards. The transmission system comprises a flywheel, a large disc, a front and rear speed changer, a chain and a left and right integrated brake handle. The appearance of derailleur drives the chain and reaches different fluted discs, and the tooth ratio of trampling changes, can select the most suitable tooth ratio to face different topography, saves physical power.

The speed change system treads a circle of pedal by changing the gear ratio, and the larger the gear ratio is, the larger the advancing distance is, but the harder the advancing distance is; smaller gear ratios indicate less forward travel, but are relatively labor efficient. Therefore, the gear ratio is switched at the moment, and the rider wants to have a high speed but a relatively large effort, or wants to have a low speed but a relatively small effort.

However, the speed changing system has no way to add extra power to assist riding, and in order to save labor and shorten the advancing distance, the bicycle with the non-electric driving power assisting system is also widely developed, for example, taiwan patent nos. M447358 and I378881 both disclose a bicycle with a non-electric driving power assisting system.

Taiwan patent No. M447358 discloses a bicycle which controls grips with different functions by both hands to respectively store and release auxiliary power, wherein when the bicycle is moving, the grip is pressed to store energy of the auxiliary power, and when the grip is released, the energy is not stored; the releasing device is pressed to release the auxiliary power, the auxiliary power is not released when the releasing device is released, however, the two operation handles (the control handle and the releasing device) are arranged at the position where the faucet is close to the brake handle, the operation proportion of the hand is greatly increased, and the safety of vehicle control is further influenced.

Since riding a bicycle is a design that requires full use of the four limbs, but the hands determine the direction and the brake for safety, the design of the bicycle in taiwan patent No. M447358 that excessively increases the burden of the hand operation will greatly affect the safety operation of the rider.

Taiwan patent No. I378881 discloses a transmission device is used on a bicycle, comes to clamp plate adjustment pressure through adjusting the crank, decides the energy storage mode to the clockwork spring through pressure size, and the reversal does not store when pressure is less, and on the contrary, the corotation does not store when pressure is great, borrows this to realize that pedal positive and negative can all reach the energy storage effect.

Further, taiwan patent No. I378881 also discloses an auxiliary power device such as taiwan patent No. I357389, which is applied to a bicycle, wherein the control member is pulled by a cable to release the energy storage device, thereby achieving the energy storage of the auxiliary power device, and the transmission structure of patent No. I378881 is applied to the auxiliary power device of patent No. I357389, thereby achieving a novel bicycle.

In any of the above-described bicycles, the following problems occur:

1. the operation on controlling the auxiliary power is unreasonable, and the consideration of controllability and safety is neglected;

2. the power auxiliary systems are all arranged on the frame, so that the whole bicycle needs special design and has a very complex structure, and the whole bicycle becomes heavy;

3. because the power auxiliary system is arranged on the frame and is not directly connected with the spindle, power storage (such as a chain or a rack) needs to be carried out through other structures, and power loss is increased when the bicycle runs.

How to solve the above problems and disadvantages is a direction in which the present inventors and related manufacturers in this industry desire to research and improve.

Disclosure of Invention

To solve the above problems, it is a primary object of the present invention to provide a bicycle energy storage assist system in which the power storage assembly is directly mounted on the spindle assembly.

Another objective of the present invention is to provide a linkage assembly operated by foot to further control the power storage assembly to store or output power.

Another objective of the present invention is to provide a control mechanism for controlling the power storage assembly to store power by foot to reduce the burden of hand control.

Another main object of the present invention is to provide a control mechanism that is structurally simple and reliable.

To achieve the above object, the present invention provides an energy storage assisting system for a bicycle, which is mounted on a frame of the bicycle, the energy storage assisting system comprising: a mandrel assembly comprising: a hollow mandrel, which is pivoted on the frame, a driving fluted disc and a first fluted disc are connected with the hollow mandrel and are respectively positioned at two sides of the frame; a crank spindle located within the hollow spindle and disposed coaxially with the hollow spindle; a power storage assembly comprising: a first shell connected with the first fluted disc; the second shell is connected with the crank mandrel and corresponds to the first shell; the energy storage element is positioned between the first shell and the second shell and is provided with two ends which are respectively connected with the first shell and the second shell; a connector assembly comprising: a receiving member connected to the crank spindle and adjacent to the driving fluted disc; and the shaft seat is connected with the driving fluted disc and is provided with a connecting shaft which is connected or separated with the connected piece so as to ensure that the first shell and the second shell rotate simultaneously or the first shell rotates independently to control the power storage component to output power or store power.

Furthermore, the hollow spindle has a first joint portion and a second joint portion respectively protruding from two sides of the frame, and the first joint portion and the second joint portion are respectively jointed with the driving fluted disc and the first fluted disc.

Further, the crank spindle is longer than the hollow spindle and has a first engaging portion with a left end protruding out of the hollow spindle and a second engaging portion with a right end protruding out of the hollow spindle.

Furthermore, the right end and the left end of the crank spindle are respectively connected with a right crank and a left crank.

Further, an annular gap is formed between the hollow spindle and the crank spindle, and a first rotating element and a second rotating element are arranged in the annular gap, wherein the first rotating element is adjacent to the left crank, and the second rotating element is adjacent to the right crank.

Further, the first rotating element and the second rotating element are bearings.

Furthermore, the bicycle comprises a rear wheel spindle pivoted on the frame.

Furthermore, the bicycle comprises a first transmission set, wherein the first transmission set comprises the driving fluted disc, a rear fluted disc and a first flexible transmission strip, the rear fluted disc is connected with the rear wheel mandrel, and the first flexible transmission strip is connected with the driving fluted disc and the rear fluted disc.

Furthermore, the bicycle includes a second transmission set, the second transmission set includes the first fluted disc, a second fluted disc and a second flexible transmission bar, the second fluted disc is connected with the rear wheel spindle, and the second flexible transmission bar is connected with the first fluted disc and the second fluted disc.

Furthermore, the first gear plate has a first unidirectional rotating element sleeved on the rear wheel spindle, and the second gear plate has a second unidirectional rotating element sleeved on the hollow spindle.

Furthermore, the rotation directions of the first unidirectional rotation element and the second unidirectional rotation element are opposite.

Furthermore, the rear wheel fluted disc is a single-speed fluted disc or a flywheel fluted disc, and the flywheel fluted disc comprises a plurality of fluted discs with different tooth numbers which are stacked at intervals with the same axle center.

Furthermore, the shaft seat is provided with a shaft hole for the insertion of the linkage shaft, and the receiving piece is provided with a concave part for the insertion of the linkage shaft.

Furthermore, the axle seat is connected with a unidirectional rotating element, the unidirectional rotating element is provided with an inner ring connected with the driving fluted disc and an outer ring, and the outer ring is connected with the axle seat.

Furthermore, the first casing has a first protruding rod, the second casing has a second protruding rod, and the energy storage element has a first fixing portion and a second fixing portion respectively sleeved on the first protruding rod and the second protruding rod.

Further, the energy storage element is a spiral spring.

Further, the rolling direction of the scroll spring is the same as the traveling direction of the bicycle.

Furthermore, the first casing and the second casing define a receiving space for receiving the energy storage element.

Through the structure, the inventor thinks that the rider tramples the bicycle through the foot and rotates to make the bicycle advance through the pedal is trampled to the foot, consequently controls the relative position of receiving the union piece and axle bed through foot operation running-board control, lets the activity of interlock axle make receiving union piece and axle bed connect or separate, and then whether control power storage system stores power or stores back output power, tramples through the foot and can produce the operation of uniformity and intuition with the control of effectively reducing rider's hand burden and promote the security by a wide margin.

And, directly set up the power storage subassembly on the spindle subassembly, let the frame of bicycle need not extra set up other structures again, overall structure simplifies and weight reduction to effectively reduce the power loss in the transmission, make whole use more smoothly convenient, provide the usability by a wide margin.

Drawings

FIG. 1A is a perspective view of the bicycle of the present invention;

FIG. 1B is a perspective view of the bicycle of the present invention;

FIG. 1C is an exploded perspective view of the bicycle of the present invention;

FIG. 1D is an exploded perspective view of the bicycle of the present invention;

FIG. 2A is a perspective view of the bicycle energy storage assist system of the present invention;

FIG. 2B is an exploded perspective view of the bicycle energy storage assist system of the present invention;

FIG. 2C is a schematic cross-sectional view of the bicycle energy storage assist system of the present invention;

FIG. 2D is an exploded view of the power storing assembly of the present invention;

FIG. 2E is a schematic view of an energy storage and power assisting system of the bicycle of the present invention;

fig. 3A is a schematic plan view of the linkage assembly in a connection state;

fig. 3B is a schematic plan view of the linkage assembly in a separated state;

fig. 4A is a schematic diagram of the operation of the linkage assembly in a connection state to enable the power storage assembly to store power;

fig. 4B is a schematic diagram of the action of the linkage assembly in a separated state to enable the power storage assembly to output power;

FIG. 5A is a schematic plan view (one) of the receiver at a different angle from the right crank;

FIG. 5B is a schematic plan view of the receiver at a different angle from the right crank;

fig. 5C is a schematic plan view (iii) of the angle between the receiver and the right crank.

Description of the reference numerals

10 bicycle

11 front wheel

12 rear wheel

13 vehicle frame

131 five-way shaft hole

132 frame bearing

14 left crank

141 left side foot pedal

15 right crank

151 right foot pedal

16 rear wheel spindle

20 spindle assembly

21 hollow mandrel

211 first joint part

212 second engaging portion

22 crank spindle

221 left end

222 right end

23 first rotating element

24 second rotating element

25 annular gap

30 first transmission group

31 driving fluted disc

32 rear gear tooth disc

33 first flexible driving strip

40 second drive group

41 first toothed disc

411 first unidirectional rotating element

42 second toothed disc

421 second unidirectional rotating element

43 second Flexible drive Row

50 power storage assembly

51 first housing part

511 first protruding rod

52 second housing member

521 second projecting rod

53 energy storage element

531 first fixed part

532 second fixed part

60 linkage assembly

61 axle seat

611 axle hole

612 fastener

62 receiving member

621 recess

63 linkage shaft

64 a unidirectional rotating element.

Detailed Description

The above objects, together with the structural and functional features thereof, are accomplished by the preferred embodiments according to the accompanying drawings.

Referring to fig. 1A, fig. 1B, fig. 1C, fig. 1D, fig. 2A, fig. 2B, fig. 2C, fig. 2D and fig. 2E, three-dimensional schematic diagrams (a) and (B) of the bicycle of the present invention, exploded schematic diagrams (a) and (B) of the bicycle, three-dimensional schematic diagrams, exploded schematic diagrams and cross-sectional schematic diagrams of the bicycle energy storage power assisting system of the present invention, exploded schematic diagrams of the power storage assembly of the present invention and schematic diagrams of the bicycle energy storage power assisting system of the present invention are shown, the present invention discloses an energy storage power assisting system, which is disposed on a bicycle 10, the energy storage power assisting system mainly includes a spindle assembly 20, a power storage assembly 50 and a link assembly 60, and the bicycle 10 includes a first transmission set 30 and a second transmission set 40.

The bicycle 10 includes a frame 13, a front wheel 11 and a rear wheel 12 respectively connected to the front and rear ends of the frame 13, the frame 13 has a five-way axle hole 131 and a rear axle hole, the five-way axle hole 131 is used for the pivot of the spindle assembly 20, the rear axle hole is used for the pivot of a rear axle 16, and a plurality of frame bearings 132 are disposed in the five-way axle hole 131 and connected to the spindle assembly 20.

The spindle assembly 20 includes a hollow spindle 21 and a crank spindle 22, the hollow spindle 21 is pivotally disposed in the five-way shaft hole 131, the frame bearing 132 is sleeved on an outer surface of the hollow spindle 21, the crank spindle 22 is disposed in the hollow spindle 21, an annular gap 25 is formed between the hollow spindle 21 and the crank spindle 22, and a first rotating element 23 and a second rotating element 24 are disposed in the annular gap 25, so that the hollow spindle 21 and the crank spindle 22 are coaxially disposed.

The hollow spindle 21 has a first joint portion 211 and a second joint portion 212 respectively at the left and right sides of the hollow spindle 21, the crank spindle 22 has a left end 221 and a right end 222, the crank spindle 22 has a length longer than the hollow spindle 21, the left end 221 protrudes the first joint portion 211, the right end 222 protrudes the second joint portion 212, the first rotating element 23 is close to the left opening of the hollow spindle 21, the second rotating element 24 is close to the right opening of the hollow spindle 21, and the first rotating element 23 and the second rotating element 24 are bearings.

The left end 221 of the crank spindle 22 is connected to a left crank 14, the right end 222 of the crank spindle 22 is connected to a right crank 15, a left pedal 141 is disposed at an end of the left crank 14 away from the left end 221, and a right pedal 151 is disposed at an end of the right crank 15 away from the right end 222.

The first transmission set 30 includes a driving cog 31, a rear cog 32 and a first flexible transmission bar 33, the driving cog 31 is connected to the second engaging portion 212 of the hollow spindle 21, the rear cog 32 is connected to the right outer surface portion of the rear spindle 16, and the first flexible transmission bar 33 is connected to the driving cog 31 and the rear cog 32.

In the present embodiment, the rear sprocket 32 is a flywheel sprocket comprising a plurality of sprockets with different numbers of teeth stacked coaxially, but not limited thereto, the rear sprocket 14 can also be a single-speed sprocket.

The second transmission set 40 includes a first toothed plate 41, a second toothed plate 42, and a second flexible transmission bar 43, the first toothed plate 41 is connected to the first engagement portion 211 of the hollow spindle 21, the second toothed plate 42 is connected to the left outer surface portion of the rear wheel spindle 16, and the second flexible transmission bar 43 is connected to the first toothed plate 41 and the second toothed plate 42.

The first gear 41 has a first unidirectional rotating element 411, the first unidirectional rotating element 411 is sleeved on the first joint portion 211 of the hollow spindle 21, the first unidirectional rotating element 411 is a unidirectional bearing, the first unidirectional rotating element 411 has a rotating direction and a stopping direction, the stopping direction is toward the front wheel 11, and the rotating direction is toward the rear wheel 12.

The second gear plate 42 has a second unidirectional rotating element 421, the second unidirectional rotating element 421 is sleeved on the first joint portion of the rear wheel spindle 16, the second unidirectional rotating element 421 is a unidirectional bearing, the first unidirectional rotating element 411 has a rotating direction and a stopping direction, the stopping direction is toward the rear wheel 12, and the rotating direction is toward the front wheel 11.

The power storage assembly 50 includes a first casing 51, a second casing 52 and an energy storage element 53, the first casing 51 is connected to the first toothed disc 41 (e.g. by screwing or welding), the second casing 52 is connected to the outer surface of the crank spindle 22 adjacent to the left end 221, and two ends of the energy storage element 53 are respectively connected to the first casing 51 and the second casing 52.

In this embodiment, the first casing 51 and the second casing 52 define a receiving space for receiving the energy storage element 53, the first casing 51 has a first protruding rod 511, the second casing 52 has a second protruding rod 521, two ends of the energy storage element 53 are respectively a first fixing portion 531 and a second fixing portion 532, the first fixing portion 531 is sleeved on the first protruding rod 511, the second fixing portion 532 is sleeved on the second protruding rod 521, but not limited thereto, the energy storage element 53 may also be fixed with the first casing 51 and the second casing 52 by other methods such as locking, or fitting, or fastening, or welding, and the energy storage element 53 is a spiral spring.

The coupling assembly 60 includes a shaft seat 61, a receiving member 62, a coupling shaft 63 and a unidirectional rotating element 64, the unidirectional rotating element 64 is a unidirectional flywheel and has a stopping direction and a rotating direction, the stopping direction faces the front wheel 11, the rotating direction faces the rear wheel 12, the unidirectional rotating element 64 has an inner ring and an outer ring, the inner ring is connected to the driving fluted disc 31 (for example, by screwing or welding or sleeving), the outer ring is connected to the shaft seat 61, the receiving member 62 is connected to the crank spindle 22 and is adjacent to the driving fluted disc 31, the shaft seat 61 has a shaft hole 611 and a fixing member 612, the coupling shaft 63 is inserted into the shaft hole 611 to move linearly, the fixing member 612 is connected to the right crank 15, the receiving member 62 has a recess 621 and a unidirectional rotating element 64, and the recess is used for inserting the coupling shaft 63.

In the present embodiment, the direction of the shaft seat 61 is the same as the installation direction of the right crank 15, but not limited to this, the angular relationship between the shaft seat 61 and the right crank 15 may be adjusted according to the riding habit, and the angular relationship will be described later.

Please refer to fig. 3A, fig. 3B, fig. 4A and fig. 4B, which are a schematic plan view of the linkage assembly in the connection state and the disconnection state, an operation schematic view of the linkage assembly in the connection state enabling the power storage assembly to store power, and an operation schematic view of the linkage assembly in the disconnection state enabling the power storage assembly to output power, respectively, and refer to fig. 1A to fig. 2E for understanding the operation principle of the present invention.

The operation of the bicycle 10 of the present invention will be explained as follows:

to advance the bicycle 10, the rider pedals the left pedal 141 and the right pedal 151, and the right pedal 151 drives the right crank 15 to rotate forward, so that the hollow spindle 21 and the crank spindle 22 rotate toward the front wheel 11, and the driving gear 31 connected to the hollow spindle 21, the first gear 41 and the second housing 52 connected to the crank spindle 22 all rotate forward.

On the other hand, while the driving cog 31 rotates the rear cog 32 forward through the first flexible transmission bar 33 and the bicycle 10 advances through the rear axle 16 driving the rear wheel 12 forward, the second cog 42 also disposed on the rear axle 16 rotates forward simultaneously, the second cog 42 rotates the first cog 41 forward through the second flexible transmission bar 43, the first housing 51 rotates forward with the first cog 41, the second housing 52 rotates forward with the crank axle 22, and the energy storage element 53 rotates with the rotation of the first housing 51 and the second housing 52 without storing power.

The following description is the operation description of the energy storage power-assisted system of the invention for storing power:

when the bicycle 10 is in a forward state, the rear wheel spindle 16 keeps rotating forward, the rider stops the right pedal 151 at an upper starting point and stops pedaling, the right crank 15 faces upward to keep the axle seat 61 (the coupling axle 63) above, at this time, the crank spindle 22 continues to rotate forward due to inertia and drives the receiving member 62 to make the recess 621 face upward, and when the recess 621 is aligned with the coupling axle 63, the coupling axle 63 naturally falls and is inserted into the recess 621 under the influence of gravity, as shown in fig. 3A.

At this time, because the linking shaft 63 is connected with the receiving member 62, the crank spindle 22 is locked by the right crank 15 and does not rotate, and the second housing member 52 stops rotating along with the crank spindle 22; on the other hand, as the rear wheel axle 16 rotates forward, the second toothed disc 42, the second flexible transmission bar 43 and the first toothed disc 41 rotate forward, the rotation direction of the first unidirectional rotating element 411 enables the first toothed disc 41 to rotate, so that the first shell 51 connected to the first toothed disc 41 rotates forward, the first fixing portion 531 of the energy storage element 53 is fixed, the second fixing portion 532 rotates, and the energy storage element 53 is gradually tightened and in an energy storage (power storage) state, as shown in fig. 4A.

The following description is the operation description of the energy storage power-assisted system of the invention for outputting power:

in the state of energy storage (storing power) of the energy storage element 53, the rider controls the right pedal 151 to move from an upper starting point to a lower starting point and stop, the right pedal 151 moves while the linking shaft 63 drives the connected piece 62 to rotate the crank spindle 22, so that the concave portion 621 of the connected piece 62 faces downward, the linking shaft 63 naturally falls under the influence of gravity and separates from the concave portion 621 when the right pedal 151 is at the lower starting point, as shown in fig. 3B, the crank spindle 22 can freely rotate without being limited by the right crank 15, and the energy storage element 53 gradually returns to its original state from tight to loose due to the restoring force, as shown in fig. 4B.

During the extension of the energy storage element 53, because the rear wheel spindle 16 still keeps the forward rotation state, the first shell 51 still keeps the forward rotation, and the force of the energy storage element 53 to restore the extension is applied to the second shell 52 to rotate the crank spindle 22 forward in cooperation with the stopping action of the second unidirectional rotation element 421.

The forward rotation of the hollow spindle 21 includes a pedaling force for the rider to pedal the left and

right pedals

141 and 151 via the left and right cranks 14 and 15 to rotate the hollow spindle 21, and a spring restoring force applied to the hollow spindle 21 by the rotation of the right crank 15 during the restoration of the energy storing element 53.

As described above, the energy storage device 53 of the present invention can wind up the stored power when the rear wheel 12 rotates (pedaling or inertia rotation, such as downhill), and the restoring force of the energy storage device 53 when it relaxes and recovers can generate additional force assistance to the crank spindle 22, so that the rider can feel lighter when pedaling the left and

right pedals

141 and 151.

In addition, when the rider continuously steps on the left and

right pedals

141 and 151 to move the bicycle 10, the linking shaft 63 is not inserted into the recess 621 due to the centrifugal force generated by the driving gear 31 when continuously rotating, and the first housing 51 and the second housing 52 are kept rotating, so that the energy storage element 53 is released and does not store power.

In addition, the unidirectional rotating element 64 allows the rider to quickly and conveniently adjust the position of the axle seat 61 by rotating the right pedal 151 in the opposite direction, so that the coupling shaft 63 can be more efficiently inserted into the recess 621.

Although the energy storage element 53 in the power storage assembly 50 is illustrated as a single spiral spring in the above embodiments, it is not limited thereto, and a plurality of energy storage elements 53 may be used to increase the stored energy according to the usage requirement, thereby prolonging the time and the force of the auxiliary power output.

Referring to fig. 5A, 5B and 5C, which are schematic plan views (a), (B) and (C) respectively illustrating different angles between the receiver and the right crank, in the above embodiment, it can be seen that the concave portion 621 and the right crank 15 are in the same direction, so that the right pedal 151 is placed at the top point when power is stored, and power is not stored at other positions, and when a rider uses the bicycle, the rider only needs to place the right pedal 151 at the highest position when the bicycle 10 is coasting to store power, but not all riders are used to place the right pedal 151 at the highest position when the bicycle 10 is coasting, so that the position where energy storage operation starts can be changed by adjusting the angular relationship between the concave portion 621 and the right crank 15 according to their own habits, for example, the right pedal 151 is placed at the top point to store power in fig. 5A, and the right pedal 151 is placed at the bottom point to store power in fig. 5B, fig. 5C shows right foot pedal 151 in a self-positioning position to begin storing power.

Therefore, when the bicycle 10 of the present invention is used, the operation burden of the hands is not increased, and as a general bicycle, only the brake lever and the shift lever are needed to be controlled, and the angular relationship between the right crank 15 and the recess 621 is determined according to the right foot habit parking position of the rider when the bicycle 10 is coasting or coasting, so that the rider can use the bicycle easily and quickly without re-adapting the operation.

In summary, the present invention has the following advantages:

1. the rider does not need to adapt to the operation and use mode again;

2. the operation burden of hands is not increased, and the operation safety is high;

3. the foot is used for controlling the power storage system to store power or store power to output, so that the intuition degree in use is high;

4. the power storage assembly is arranged on the spindle assembly, and the spindle assembly is arranged at the position of an original five-way spindle hole of the frame, so that the frame does not need to be redesigned;

5. the linkage assembly has simple structure and high reliability.

The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made according to the scope of the claims of the present invention should also belong to the scope of the patent coverage of the present invention.

Claims

1. An energy storage and power assisting system for a bicycle, mounted on a frame of the bicycle, the energy storage and power assisting system comprising:

a mandrel assembly comprising:

a hollow mandrel, which is pivoted on the frame, a driving fluted disc and a first fluted disc are connected with the hollow mandrel and are respectively positioned at two sides of the frame;

a crank spindle located within the hollow spindle and disposed coaxially with the hollow spindle;

a power storage assembly comprising:

a first shell connected with the first fluted disc;

the second shell is connected with the crank mandrel and corresponds to the first shell;

the energy storage element is positioned between the first shell and the second shell, and two ends of the energy storage element are respectively connected with the first shell and the second shell;

a connector assembly comprising:

a receiving member connected to the crank spindle and adjacent to the driving fluted disc;

and the shaft seat is connected with the driving fluted disc and is provided with a connecting shaft which is connected or separated with the connected piece so as to ensure that the first shell and the second shell rotate simultaneously or the first shell rotates independently to control the power storage component to output power or store power.

2. The bicycle energy storage assist system of claim 1, wherein: the hollow spindle has a first joint portion and a second joint portion respectively protruding from two sides of the frame, and the first joint portion and the second joint portion are respectively jointed with the driving fluted disc and the first fluted disc.

3. The bicycle energy storage assist system of claim 2, wherein: the crank spindle is longer than the hollow spindle and has a first joint part with a left end protruding out of the hollow spindle and a second joint part with a right end protruding out of the hollow spindle.

4. The bicycle energy storage assist system of claim 3, wherein: the right end and the left end of the crank mandrel are respectively connected with a right crank and a left crank.

5. The bicycle energy storage assist system of claim 4, wherein: an annular gap is formed between the hollow spindle and the crank spindle, and a first rotating element and a second rotating element are arranged in the annular gap, wherein the first rotating element is adjacent to the left crank, and the second rotating element is adjacent to the right crank.

6. The bicycle energy storage assist system of claim 5, wherein: the first rotating element and the second rotating element are bearings.

7. The bicycle energy storage assist system of claim 1, wherein: the bicycle comprises a rear wheel spindle pivoted on the frame.

8. The bicycle energy storage assist system of claim 7, wherein: the bicycle comprises a first transmission set, wherein the first transmission set comprises a driving fluted disc, a rear toothed disc and a first flexible transmission strip, the rear toothed disc is connected with the rear wheel mandrel, and the first flexible transmission strip is connected with the driving fluted disc and the rear toothed disc.

9. The bicycle energy storage assist system of claim 8, wherein: the bicycle comprises a second transmission set, wherein the second transmission set comprises a first fluted disc, a second fluted disc and a second flexible transmission strip, the second fluted disc is connected with the rear wheel mandrel, and the second flexible transmission strip is connected with the first fluted disc and the second fluted disc.

10. The bicycle energy storage assist system of claim 9, wherein: the first gear plate has a first unidirectional rotating element sleeved on the rear wheel spindle, and the second gear plate has a second unidirectional rotating element sleeved on the hollow spindle.

11. The bicycle energy storage assist system of claim 10, wherein: the first unidirectional rotating element and the second unidirectional rotating element rotate in opposite directions.

12. The bicycle energy storage assist system of claim 8, wherein: the rear wheel fluted disc is a single-speed fluted disc or a flywheel fluted disc, and the flywheel fluted disc comprises a plurality of fluted discs with different tooth numbers which are stacked at intervals with the same axle center.

13. The bicycle energy storage assist system of claim 1, wherein: the shaft seat has a shaft hole for the insertion of the coupling shaft, and the receiving member has a recess for the insertion of the coupling shaft.

14. The bicycle energy storage assist system of claim 1, wherein: the shaft seat is connected with a one-way rotating element, the one-way rotating element is provided with an inner ring connected with the driving fluted disc and an outer ring, and the outer ring is connected with the shaft seat.

15. The bicycle energy storage assist system of claim 1, wherein: the first shell has a first protruding rod, the second shell has a second protruding rod, and the energy storage element has a first fixing portion and a second fixing portion respectively sleeved on the first protruding rod and the second protruding rod.

16. The bicycle energy storage assist system of claim 1, wherein: the energy storage element is a volute spiral spring.

17. The bicycle energy storage assist system of claim 16, wherein: the rolling direction of the scroll spring is the same as the traveling direction of the bicycle.

18. The bicycle energy storage assist system of claim 1, wherein: the first shell and the second shell define a containing space for containing the energy storage element.