CN219911561U - Clutch assembly of booster bicycle - Google Patents

Abstract

The utility model belongs to the technical field of bicycles, and particularly relates to a clutch assembly of a booster bicycle. The main dental tray is fixedly connected to the periphery of the connecting sleeve; the first one-way clutch comprises a first inner ring and a first outer ring, and the first inner ring is sleeved on the middle shaft and fixedly connected with the middle shaft; the second one-way clutch comprises a second inner ring and a second outer ring, and the electric tooth disc is fixedly connected to the periphery of the second outer ring; the connecting sleeve and the middle shaft are coaxially and rotatably sleeved on the middle shaft, and two ends of the connecting sleeve are respectively fixedly connected with the first outer ring and the second inner ring in the circumferential direction; the first one-way clutch and the second one-way clutch rotate in opposite directions in one direction. The clutch assembly provided by the utility model can prevent the manpower mode and the electric mode from being mutually influenced, and does not waste manpower and electric power. The clutch assembly is matched with two one-way clutches to form a modular structure, so that the clutch assembly is integrally modular without additional matching.

Description

Clutch assembly of booster bicycle

Technical Field

The utility model belongs to the technical field of bicycles, and particularly relates to a clutch assembly of a booster bicycle.

Background

The electric bicycle is a novel scooter, a middle motor is additionally arranged on the basis of a bicycle, the middle motor can provide power-assisted torque according to requirements when a user rides so as to achieve the purpose of saving physical strength of the user, and in strenuous scenes such as an ascending slope, a road surface and the like, the power-assisted torque provided by the middle motor can greatly save the strength required by the user, so that the user can achieve good riding experience.

In the prior art, a planetary reduction type central motor for a power-assisted vehicle with the patent number of CN218786058U discloses a central motor, which comprises a shell, a central shaft, a motor part, a planetary reduction mechanism and a sensor assembly; the motor part comprises a motor shaft, a stator and a rotor; the planetary carrier of the planetary reduction mechanism establishes a transmission relation with the central shaft through a gear set, and the gear set comprises a first gear and a second gear which are respectively arranged on the planetary carrier and the central shaft; a moment deformation sleeve is sleeved on the middle shaft, one end of the moment deformation sleeve is connected with the middle shaft through a second one-way clutch, and the other end of the moment deformation sleeve extends out of the shell to be connected with an output part; a first one-way clutch is arranged between the middle hole of the second gear and the moment deformation sleeve; all the parts contained in the sensor assembly and the second gear are installed around the torque deformation sleeve and distributed in the axial range of the sensor assembly.

The one-way clutch can realize the function of directional rotation, but the one-way clutch, the motor structure and the planetary reduction mechanism are enclosed in a shell, the two one-way clutches are not combined, cannot be installed as a whole accessory, and partial parts are easy to lose during disassembly and assembly.

Disclosure of Invention

The utility model aims at solving the technical problems and provides a clutch assembly of a power-assisted bicycle, which achieves the effects of forming a modular structure and integrally assembling the clutch assembly without additional matching.

In view of the above, the present utility model provides a clutch assembly of a booster bicycle, comprising:

the periphery of the connecting sleeve is fixedly connected with the main dental tray;

the first one-way clutch comprises a first inner ring and a first outer ring, and the first inner ring is sleeved on the middle shaft and fixedly connected with the middle shaft;

the second one-way clutch comprises a second inner ring and a second outer ring, and the electric tooth disc is fixedly connected to the periphery of the second outer ring;

the connecting sleeve and the middle shaft are coaxially and rotatably sleeved on the middle shaft, and two ends of the connecting sleeve are respectively fixedly connected with the first outer ring and the second inner ring in the circumferential direction; the first one-way clutch and the second one-way clutch rotate in opposite directions in one direction.

In this technical scheme, helping hand bicycle includes three operating condition of manpower mode, electric mode and combination mode, and clutch pack can make manpower mode and electric mode not influence each other, can not extravagant manpower and electric power. The clutch assembly is matched with two one-way clutches to form a modular structure, so that the clutch assembly is integrally modular without additional matching.

Further, the first inner ring periphery of the first one-way clutch is provided with a first pawl, the first outer ring inner periphery is provided with a first ratchet tooth matched with the first pawl, the second inner ring periphery of the second one-way clutch is provided with a second pawl, the second outer ring inner periphery is provided with a second ratchet tooth matched with the second pawl, and the inclination directions of the first pawl and the second pawl are opposite.

In this technical scheme, when only using manual mode, the people pedal promptly, the axis anticlockwise rotates, and then the axis drives first inner circle and rotates, and first inner circle and main chain wheel circumference fixed connection so main chain wheel can rotate, and then main chain wheel rotates and makes the bicycle chain drive rear wheel rotate and realize preceding, but first outer lane, adapter sleeve and second one-way clutch all do not follow the rotation, therefore, under the manpower mode, driving motor main shaft can not rotate, consequently can not extravagant manpower. When only using electric mode, electric mode is helping hand structure drive electric chain wheel clockwise rotation promptly, and then second outer lane can drive the second inner circle and rotate, and then adapter sleeve, main chain wheel and first outer lane all follow clockwise rotation, and then main chain wheel rotates and makes bicycle chain drive rear wheel rotate and realize preceding, but first inner circle does not rotate, then axis and pedal do not rotate under electric mode, therefore can not waste electric power. The combined mode, namely the pedal and the power assisting structure are synchronously carried out, and the main chain wheel is driven by the power source with stronger power to circumferentially rotate so that the bicycle chain drives the rear wheel to rotate, and the bicycle is driven to advance.

Further, the first inner ring is in threaded fit connection with the middle shaft.

Further, the outer periphery of the second outer ring is fixedly connected with the inner periphery of the electric dental tray through welding.

Further, the outer periphery of the connecting sleeve is fixedly connected with the inner periphery of the main dental tray through welding.

Further, the connecting sleeve extends out of the first circular ring towards one end of the second one-way clutch, a connecting hole is formed in the second inner ring, and the first circular ring can be inserted into the connecting hole and is fixedly connected with the connecting hole through a threaded structure.

Further, the connecting sleeve extends out of the second circular ring towards one end of the first one-way clutch, and the first outer ring can be inserted into the inner ring of the second circular ring and is fixedly connected with the second circular ring through a threaded structure.

The beneficial effects of the utility model are as follows:

1. the booster bicycle comprises three working states of a manpower mode, an electric mode and a combined mode, and the clutch assembly can enable the manpower mode and the electric mode not to be affected mutually, so that manpower and electric power cannot be wasted. The clutch assembly is matched with two one-way clutches to form a modular structure, so that the clutch assembly is integrally modular without additional matching.

Drawings

FIG. 1 is a front elevational view of a bicycle;

FIG. 2 is a rear elevational view of the bicycle;

FIG. 3 is a perspective view of the bicycle;

FIG. 4 is a partial enlarged view A of FIG. 3;

FIG. 5 is a schematic illustration of a boost configuration;

FIG. 6 is a perspective view of the clutch assembly;

FIG. 7 is an exploded view of the clutch assembly;

FIG. 8 is an exploded view of another view of the clutch assembly;

FIG. 9 is a semi-sectional view of the clutch assembly;

fig. 10 is a perspective view of the output wheel.

The label in the figure is:

1. a frame; 2. foot pedal; 3. a power assisting structure; 4. a master dental tray; 5. an electric dental tray; 6. a clutch assembly; 7. a center shaft; 8. a driving motor; 9. a planetary reduction assembly; 10. a battery; 11. a lower pipe; 12. a rear lower fork; 13. a chute; 14. a chain; 15. connecting sleeves; 16. a first one-way clutch; 17. a second one-way clutch; 18. a first inner ring; 19. a first outer race; 20. a first pawl; 21. a first ratchet tooth; 22. a second inner ring; 23. a second outer race; 24. a second pawl; 25. a second ratchet tooth; 26. a first ring; 27. a connection hole; 28. a second ring; 29. a connecting bolt; 30. a connecting plate; 31. an upper press plate; 32. a lower pressing plate; 33. a rotating shaft; 34. a turntable.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present utility model, fall within the scope of protection of the present utility model.

In the description of the present utility model, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present utility model. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present utility model may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

It should be noted that, in the description of the present utility model, the terms like "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc. generally refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and these orientation terms do not indicate and imply that the apparatus or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

It should be noted that, in the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present utility model is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Example 1:

as shown in figures 1-4, the booster bicycle comprises a frame, wherein a pedal 2 is arranged on a center shaft 7 of the frame, and the booster bicycle further comprises a booster structure 3, a main toothed disc 4, an electric toothed disc 5 and a clutch assembly 6. The electric dental tray 5 is positioned on one side of the main dental tray 4 close to the frame. The bicycle handle is provided with a gear adjusting button for adjusting the output rotating speed of the power assisting structure 3. Be provided with the display screen on the bicycle tap, adjustment button and display screen are the conventional setting in this field, do not make too much redundant description.

The electric dental tray 5 and the middle shaft 7 are coaxially arranged on the periphery of the middle shaft 7 in a surrounding manner; the power assisting structure 3 comprises a driving motor 8 and a planetary reduction assembly 9, the power assisting structure 3 is electrically connected with a storage battery 10, and the power assisting structure 3 is detachably and fixedly arranged below the joint of a lower frame pipe 11, a rear lower fork 12 and an inclined pipe 13 through a fixed connection structure; the main chain wheel 4 is sleeved on the periphery of the center shaft 7 coaxially with the center shaft 7, and the main chain wheel 4 is connected with a bicycle chain 14 and can drive a rear wheel to rotate; the clutch component 6 is detachably sleeved on the middle shaft 7 coaxially with the middle shaft 7; the output wheel of the planetary reduction assembly 9 is in transmission connection with the electric toothed disc 5, and the clutch assembly 6 is used for enabling the main toothed disc 4 to be in circumferential synchronous connection with only one of the middle shaft 7 or the electric toothed disc 5.

The power assisting structure 3 and the clutch assembly 6 are respectively and detachably connected with a power assisting bicycle, the modification or replacement is relatively convenient, the universality and the replacement performance are high, the power assisting structure 3 and the clutch assembly 6 are respectively arranged, and are not required to be arranged on a central shaft 7 of the bicycle in a concentrated manner, the redundant space on the bicycle can be respectively utilized, the modification to the original bicycle is small, and the applicability and the universality in the field of bicycle modification are high.

Example 2:

as shown in fig. 6-9, the clutch assembly 6 comprises a connecting sleeve 15, a first one-way clutch 16 and a second one-way clutch 17. The first one-way clutch 16 is located on the side of the second one-way clutch 17 remote from the frame. The periphery of the connecting sleeve 15 is fixedly connected with the main dental tray 4 through welding;

the first one-way clutch 16 comprises a first inner ring 18 and a first outer ring 19, wherein the first inner ring 18 is sleeved on the middle shaft 7 and is fixedly connected with the middle shaft 7 through a thread structure. The first inner race 18 of the first one-way clutch 16 is provided with a first pawl 20 at its outer periphery, the first outer race 19 is provided with first ratchet teeth 21 matching the first pawl 20 at its inner periphery,

the second one-way clutch 17 comprises a second inner ring 22 and a second outer ring 23, and the electric toothed disc 5 is fixedly connected to the outer periphery of the second outer ring 23 through welding. The second inner race 22 of the second one-way clutch 17 is provided at its outer periphery with a second pawl 24, the second outer race 23 is provided at its inner periphery with a second ratchet tooth 25 matching the second pawl 24,

the connecting sleeve 15 is coaxially and rotatably sleeved on the central shaft 7 with the central shaft 7, two ends of the connecting sleeve 15 are respectively connected with the first outer ring 19 and the second inner ring 22 in a circumferential Xiang Gujie mode, specifically, one end of the connecting sleeve 15, which faces the second one-way clutch 17, extends out of the first circular ring 26, a connecting hole 27 is formed in the second inner ring 22, and the first circular ring 26 can be inserted into the connecting hole 27 and is fixedly connected with the second circular ring through a threaded structure. The connecting sleeve 15 extends out of the second circular ring 28 towards one end of the first one-way clutch 16, and the first outer ring 19 can be inserted into the inner ring of the second circular ring 28 and is fixedly connected with the second circular ring through a threaded structure. The first one-way clutch 16 and the second one-way clutch 17 are rotated in opposite directions in one direction, i.e., in opposite directions of inclination of the first pawl 20 and the second pawl 24.

The booster bicycle comprises three working states of a manpower mode, an electric mode and a combined mode, and the clutch assembly 6 can enable the manpower mode and the electric mode not to be affected mutually, so that manpower and electric power are not wasted. The clutch assembly 6 is assembled by using two one-way clutches together to form an assembled structure, so that the clutch assembly 6 is assembled integrally without additional matching. When only the manual mode is used, namely the pedal 2 is stepped on by a person, the middle shaft 7 rotates anticlockwise, the middle shaft 7 drives the first inner ring 18 to rotate, the first inner ring 18 is fixedly connected with the circumference of the main chain wheel 4, so that the main chain wheel 4 rotates, the bicycle chain 14 drives the rear wheel to rotate, and the front wheel is driven to advance, but the first outer ring 19, the connecting sleeve 15 and the second one-way clutch 17 do not rotate, so that the main shaft of the driving motor 8 does not rotate in the manual mode, and the manpower is not wasted. When only the electric mode is used, the electric mode, namely the power assisting structure 3 drives the electric dental disc 5 to rotate clockwise, the second outer ring 23 drives the second inner ring 22 to rotate, the connecting sleeve 15, the main dental disc 4 and the first outer ring 19 all rotate clockwise, the main dental disc 4 rotates to drive the bicycle chain 14 to drive the rear wheel to rotate so as to realize forward movement, but the first inner ring 18 does not rotate, and the middle shaft 7 and the pedals 2 do not rotate in the electric mode, so that electric power cannot be wasted. The combination mode, namely the pedal 2 and the power assisting structure 3 are synchronously carried out, and the main chain wheel 4 is driven by the stronger power source to rotate circumferentially so that the bicycle chain 14 drives the rear wheel to rotate, thereby realizing the forward movement of the bicycle.

Example 3:

as shown in fig. 4, the fixed connection structure includes a connection nut, a connection bolt 29, and a connection plate 30. The head of the connecting bolt 29 is welded with the power assisting structure 3; the connecting plate 30 is arranged at the joint of the lower frame pipe 11, the rear lower fork 12 and the inclined pipe 13, a round hole is formed in the connecting plate 30, and the connecting bolt 29 can penetrate through the round hole and be in threaded connection with the connecting nut.

Example 4:

as shown in fig. 5 and 10, the output wheel includes an upper platen 31, a lower platen 32, and a rotating shaft 33. The upper pressing plate 31 is disc-shaped; the lower platen 32 has a disc shape; a rotary table 34 is rotatably sleeved on the rotary shaft 33; the upper pressing plate 31 and the lower pressing plate 32 are arranged at parallel intervals, the rotating shafts 33 are arranged between the upper pressing plate 31 and the lower pressing plate 32, two ends of the rotating shafts are fixedly connected with the upper pressing plate 31 and the lower pressing plate 32 respectively, a plurality of rotating shafts 33 are arranged along the axial direction of the upper pressing plate 31, and gaps larger than the tooth width of the main tooth tray 4 are formed between the rotating plates 34. The output wheel with the structure plays a role of meshing with the main dental tray 4, and has strong universality.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, in which the embodiments of the present utility model and features of the embodiments may be combined with each other without conflict, the present utility model is not limited to the above-described embodiments, which are merely illustrative, not restrictive, of the present utility model, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are protected by the present utility model.

Claims (7)

1. A clutch assembly for a booster bicycle, comprising:

the periphery of the connecting sleeve is fixedly connected with a main dental tray;

the first one-way clutch comprises a first inner ring and a first outer ring, and the first inner ring is sleeved on the middle shaft and fixedly connected with the middle shaft;

the second one-way clutch comprises a second inner ring and a second outer ring, and an electric tooth disc is fixedly connected to the periphery of the second outer ring;

the connecting sleeve and the middle shaft are coaxially and rotatably sleeved on the middle shaft, and two ends of the connecting sleeve are respectively fixedly connected with the first outer ring and the second inner ring in the circumferential direction; the first one-way clutch and the second one-way clutch rotate in opposite directions in one direction.

2. The clutch assembly of a booster bicycle of claim 1, wherein a first pawl is provided on an outer periphery of a first inner race of the first one-way clutch, a first ratchet tooth matching the first pawl is provided on an inner periphery of the first outer race, a second pawl is provided on an outer periphery of a second inner race of the second one-way clutch, a second ratchet tooth matching the second pawl is provided on an inner periphery of the second outer race, and inclination directions of the first pawl and the second pawl are opposite.

3. The clutch assembly of a booster bicycle of claim 1, wherein the first inner race is threadedly coupled to the bottom bracket.

4. The clutch assembly of a booster bicycle of claim 1, wherein the outer periphery of the second outer race is fixedly connected to the inner periphery of the electric crankset by welding.

5. The clutch assembly of a booster bicycle of claim 1, wherein the outer periphery of the connecting sleeve is fixedly connected with the inner periphery of the main dental disk by welding.

6. The clutch assembly of a booster bicycle of claim 1, wherein the connecting sleeve extends out of the first ring toward one end of the second one-way clutch, a connecting hole is formed in the second inner ring, and the first ring can be inserted into the connecting hole and is fixedly connected with the first ring through a threaded structure.

7. The clutch assembly of a booster bicycle of claim 1, wherein the connecting sleeve extends out of the second ring toward one end of the first one-way clutch, the first outer ring is insertable into the inner ring of the second ring and the first outer ring and the second ring are fixedly connected by a threaded structure.