CN210555418U

CN210555418U - Labor-saving chainless bicycle

Info

Publication number: CN210555418U
Application number: CN201921265318.7U
Authority: CN
Inventors: 梁宣耕
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-05-19
Anticipated expiration: 2029-08-06

Abstract

The utility model relates to a laborsaving chainless bicycle directly drives the wheel of bicycle through the gear, has saved middle drive mechanism, has reduced the loss among the power transfer process, and is simpler for prior art structure, directly uses the axletree of bicycle rear wheel as the axis, and the wheel passes through one-way clutch cover to be established on the axletree, is connected through the bearing between frame and the axletree, the utility model has the characteristics of novel structure, laborsaving convenient, safe and reliable.

Description

Labor-saving chainless bicycle

Technical Field

The utility model relates to a manpower drive mechanism specifically is a laborsaving no chain bicycle.

Background

The current conventional transmission modes include: crank pedal, flywheel, chain wheel and central shaft for mounting chain wheel; the left and right pedals drive the middle shaft to rotate so as to drive the chain wheel to rotate, and the bicycle is driven to move forwards through the chain between the chain wheel and the flywheel; the distance from two pedals to the middle shaft of the chain wheel in the traditional transmission mode is fixed, namely the length of the crank is fixed, according to the mechanical principle, the crank which needs to be lengthened for labor saving is realized, the length of the crank is too long or too short, the crank is not used for riding, the crank is too short and labor-saving, the overlong pedal rotates for a circle, the time is prolonged, and the crank cannot be ridden at normal speed.

For this applicant designs a labor-saving bicycle, for example, publication No. CN208963260U discloses a labor-saving pedal driving mechanism, which includes a frame, a center shaft, a flywheel, a chain, a sprocket and pedals, wherein two sides of the frame are provided with fixed rings, the center shaft is located in the fixed rings, the inner side of each fixed ring is provided with a slip ring coaxial with the fixed ring, the axial center of the slip ring or the fixed ring is offset with respect to the center shaft, the outer side of the slip ring is provided with the pedals, two ends of the center shaft are fixedly connected with a transmission gear, the outer diameter of the transmission gear is smaller than the inner diameter of the slip ring and is accommodated in the inner side of the slip ring, the slip ring drives the transmission gear to rotate, and; the chain wheel is connected with a flywheel at the rear of the frame through a chain, and the labor-saving pedal driving mechanism has the characteristics of reasonable structure, labor saving, convenience, safety and reliability.

The structure adopts gear transmission and then chain wheel transmission, and the power output is lost through multiple transmissions, so that the labor-saving effect is weakened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laborsaving chainless bicycle directly drives the wheel of bicycle through the gear, has saved middle drive mechanism, has reduced the loss among the power transfer process, and is simpler for prior art structure, directly uses bicycle axletree as the axis, and the wheel passes through one-way clutch cover to be established on the axletree, is connected through the bearing between frame and the axletree, the utility model has the characteristics of novel structure, laborsaving convenient, safe and reliable.

The following technical scheme is adopted for achieving the purpose:

the utility model provides a laborsaving chainless bicycle, includes frame, front wheel, rear wheel and pedal, its characterized in that: the rear wheel is sleeved on the wheel shaft through the one-way clutch device, bearings are further sleeved at positions of the wheel shaft, which are located at two sides of the one-way clutch device, the wheel and the wheel shaft are fixed on the frame through the bearings, and transmission wheels are further fixed at two ends of the wheel shaft, which are located at the outer sides of the bearings; the two sides of the frame are provided with driving slip ring devices, the driving wheel is positioned in the driving slip ring devices, the rotating center of the driving slip ring devices is forward biased relative to the wheel axis, and the inner edges of the driving slip rings are meshed with the outer edges of the driving wheel; the pedals are arranged on the driving slip ring device, the phase angles of the pedals on the left side and the right side are different by half a circle, and the pedals drive the transmission wheel to rotate through the driving slip ring device so as to drive the rear wheel to rotate.

The one-way clutch device is sleeved on a wheel shaft of the rear wheel, and a central shaft of the driving slip ring device is forwardly offset relative to a central shaft of the driving wheel.

The one-way clutch device is a one-way bearing, the one-way bearing sleeve is arranged on the wheel shaft, and the hub sleeve of the rear wheel is arranged on the one-way bearing.

The number of the one-way bearings is two, and the one-way bearings are arranged in a bilateral symmetry mode.

The driving slip ring device comprises a fixing ring and a slip ring, the slip ring is accommodated at the inner edge of the fixing ring and can freely rotate in the fixing ring, the fixing ring is fixedly connected with the frame to fix the whole driving slip ring device on the frame, and the pedal is fixedly connected to the outer side of the slip ring.

The driving slip ring device comprises a slip ring and a plurality of guide seats, each guide seat is fixed on the frame, a guide wheel is arranged on each guide seat and is positioned on the outer edge side of the slip ring, the guide wheels limit the axial position of the slip ring and enable the slip ring to rotate by taking the center of the slip ring as a shaft, and the pedals are fixedly connected to the outer side of the slip ring.

The inner edge of the slip ring is provided with inner insections, and the outer edge of the driving wheel is provided with outer insections matched with the inner insections; the internal and external tooth patterns are mutually meshed.

The inner edge of the slip ring is provided with a chain ring, the inner edge of the chain ring is provided with a chain groove, the outer edge of the driving wheel is provided with outer teeth matched with the chain ring, and the outer teeth are meshed with the chain groove.

The driving slip ring device comprises a slip ring and a plurality of guide seats, each guide seat is fixed on a frame, a guide wheel is arranged on each guide seat, each guide wheel is positioned on the circumferential track of the same ring, the guide wheels are positioned on the inner edge and the outer edge of the slip ring, the axial position of the slip ring is limited by the guide wheels, the slip ring can rotate by taking the center of the slip ring as a shaft, and the pedals are fixedly connected to the outer side of the slip ring.

The outer end face of the slip ring is provided with a circle of convex ring, the inner edge of the convex ring is provided with inner insections, the outer edge of the driving wheel is provided with outer insections matched with the inner insections, and the outer insections are meshed with the inner insections.

The outer end face of the slip ring is provided with a circle of convex ring, the inner edge of the convex ring is provided with a chain ring, the inner edge of the chain ring is provided with a chain groove, the outer edge of the driving wheel is provided with outer teeth matched with the chain groove, and the outer teeth are meshed with the chain groove.

The frame comprises a front support, a rear support and a transverse connecting frame between the front support and the rear support, a seat cushion is arranged at the upper end of the rear support, a rear seat reinforcing support frame is also arranged between the upper end of the rear support and the transverse connecting frame, and the lower end of the rear support is matched with a bearing and then continues to extend downwards to form a lower connecting frame; at least the back support, the transverse connecting frame and the lower connecting frame are provided with guide seats.

And a reinforcing bracket is also arranged between the lower end of the lower connecting frame and the rear seat reinforcing support frame or the transverse connecting frame.

The utility model uses the bicycle wheel shaft as the middle shaft of the pedal directly, and connects the wheel shaft and the frame through the bearing, thus the wheel shaft is separated from the frame when rotating along with the pedal, and the dynamic and static separation is realized; in addition, the utility model saves the original chain transmission, and directly uses the gear meshing transmission, thereby reducing the loss of power transmission and avoiding the occurrence of chain dropping events; simultaneously the pulley is for the drive wheel forward offset, tramples downwards when being equivalent to increase arm of force length like this, from realizing laborsaving effect, the utility model has the characteristics of novel structure, laborsaving convenient, safe and reliable.

Drawings

Fig. 1 is a schematic view of the transmission structure of the present invention;

FIG. 2 is a schematic structural diagram of a first embodiment of the present invention;

fig. 3 is a schematic structural view of a driving slip ring device according to a first embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a second embodiment of the present invention;

fig. 5 is a schematic structural view of a driving slip ring device according to a second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a third embodiment of the present invention;

fig. 7 is a schematic structural view of a driving slip ring device according to a third embodiment of the present invention;

FIG. 8 is an internal schematic view of the guide wheels of the present invention distributed on both sides of the slip ring;

FIG. 9 is a schematic structural view of the guide wheel of the present invention distributed on one side;

fig. 10 is a schematic structural diagram of the driving slip ring device with one-side distribution of the guide wheel according to the present invention.

Detailed Description

As shown in fig. 1-3, a labor-saving chainless bicycle comprises a frame 1, a front wheel 2, a rear wheel 3 and pedals 4, wherein the rear wheel 3 is sleeved on a wheel axle 31 through a one-way clutch device, the one-way clutch device is a one-way bearing 35, the one-way bearing 35 is sleeved on the wheel axle 31, and a hub of the rear wheel 3 is sleeved on the one-way bearing 35; the number of the one-way bearings 35 is two, and the one-way bearings 35 are arranged in a left-right symmetrical mode; bearings 32 are further sleeved at the positions of the wheel shafts 31, which are positioned at the two sides of the one-way clutch device, the rear wheels 3 and the wheel shafts 31 are fixed on the frame 1 through the bearings 32, and transmission wheels 33 are further fixed at the two ends of the wheel shafts 31, which are positioned at the outer sides of the bearings 32; the driving slip ring device 5 is arranged on two sides of the frame 1, the transmission wheel 33 is positioned in the driving slip ring device 5, the rotating center of the driving slip ring device 5 is offset forwards relative to the wheel shaft 31, the driving slip ring device 5 comprises a fixed ring 51 and a slip ring 52, the slip ring 52 is accommodated at the inner edge of the fixed ring 51 and can freely rotate in the fixed ring 51, the fixed ring 51 is fixedly connected with the frame 1 to fix the whole driving slip ring device 5 on the frame 1, and the pedal 4 is fixedly connected with the outer side of the slip ring 52; the inner edge of the slip ring 52 is provided with inner threads 521, and the outer edge of the transmission wheel 33 is provided with outer threads 331 matched with the inner threads 521; the inner tooth pattern and the outer tooth pattern are mutually meshed; the pedals 4 are arranged on the slip ring 52, the phase angles of the pedals 4 on the left side and the right side are different by half a circle, and the pedals 4 drive the transmission wheel 33 to rotate by driving the slip ring device 5, so as to drive the rear wheel 3 to rotate.

The utility model uses the bicycle wheel shaft as the middle shaft of the pedal directly, and connects the wheel shaft and the frame through the bearing, thus the wheel shaft is separated from the frame when rotating along with the pedal, and the dynamic and static separation is realized; in addition, the utility model saves the original chain transmission, and directly uses the gear meshing transmission, thereby reducing the loss of power transmission and avoiding the occurrence of chain dropping events; simultaneously the pulley is for the axletree forward offset, tramples downwards like this and is equivalent to increasing arm of force length, from realizing laborsaving effect, the utility model has the characteristics of novel structure, laborsaving convenient, safe and reliable.

In addition, the structure of the driving slip ring device 5 of the present invention can be fixed in another way, as shown in fig. 4 and 5, the driving slip ring device 5 includes a slip ring 52 and a plurality of guide seats 53, each guide seat 53 is fixed on the frame 1, each guide seat 53 is provided with a guide wheel 531, the guide wheel 531 limits the axial position of the slip ring 52, and enables the slip ring 52 to rotate by taking the center of the slip ring 52 as an axis, the pedal 4 is fixedly connected to the outer side of the slip ring 52; the inner edge of the slip ring 52 is provided with inner threads 521, and the outer edge of the transmission wheel 33 is provided with outer threads 331 matched with the inner threads 521; the internal and external tooth patterns are mutually meshed.

The frame 1 comprises a front support 11, a rear support 12 and a transverse connecting frame 13 between the front support and the rear support, wherein a seat cushion 14 is arranged at the upper end of the rear support 12, a rear seat reinforcing support frame 15 is also arranged between the upper end of the rear support 12 and the transverse connecting frame 13, and the lower end of the rear support 12 is matched with a bearing and then continuously extends downwards to form a lower connecting frame 16; four guide seats 53 are respectively fixed on the rear support 12, the rear seat reinforcing support frame 15, the transverse connecting frame 13 and the lower connecting frame 16; and a reinforcing bracket 17 is also arranged between the lower end of the lower connecting frame 16 and the rear seat reinforcing support frame 15 or the transverse connecting frame 13.

The sliding ring 52 of the utility model adopts a plurality of guide seats 53 for axial positioning, and simultaneously, a guide wheel 531 is arranged on the outer side of each guide seat 53, and the guide wheel 531 ensures that the sliding ring 52 can rotate by taking the center of the sliding ring 52 as an axis; additionally the utility model discloses at least at the middle part of the front side of sliding ring to and the front and back portion of sliding ring rear side position drive wheel sets up guide holder 53, and sliding ring 52 receives reaction force when rotatory like this and can be more even, ensures the stability of during operation.

In addition the utility model discloses can also adopt chain ring 522 to replace interior insection, chain groove has been seted up to chain ring 522's inner edge department, and the chain groove is equivalent to the chain and is the same with the external insection meshing of drive wheel, only the time the utility model discloses chain ring 522 is fixed on sliding ring 52.

As shown in fig. 6 and 7, a chain ring 522 is arranged on the inner edge of the slip ring 52, a chain groove is formed in the inner edge of the chain ring 522, an external tooth pattern 331 matched with the chain ring 522 is arranged on the outer edge of the driving wheel 33, the external tooth pattern 331 is meshed with the chain groove, and the chain ring 522 is used for replacing the internal tooth pattern, so that the process is simpler and the processing is more convenient.

In the matching manner of the guide wheel 531 and the sliding ring 52, the guide wheel 531 may be arranged on both the inner side and the outer side of the sliding ring 52, or the guide wheel may be arranged only on the outer side, and when the guide wheel 531 is arranged only on the outer side, as shown in fig. 9-10, the angular phase of the guide seat 53 on the front side of the sliding ring 52 needs to be widened, which is beneficial to increasing the stability of the guide seat 53 in positioning the sliding ring 52.

When the guide wheels 531 are disposed on the inner and outer sides of the sliding ring 52, and the positions of the inner tooth marks 521 and the chain links 522 need to be adjusted to a certain extent due to the guide wheels disposed inside, as shown in fig. 8, a circle of convex ring 523 is disposed on the outer end surface of the sliding ring 52, an inner tooth mark or a chain link 522 is disposed on the inner edge of the convex ring 523, a circle of chain slot is disposed on the inner edge of the chain link 522, an outer tooth mark 331 matched with the inner tooth mark 521 or the chain slot is disposed on the outer edge of the transmission wheel 33, and the outer tooth mark 331 is engaged with the inner tooth mark 521 or the chain.

Claims

1. The utility model provides a laborsaving chainless bicycle, includes frame (1), front wheel (2), rear wheel (3) and pedal (4), its characterized in that: the rear wheel (3) is sleeved on the wheel shaft (31) through the one-way clutch device, bearings (32) are further sleeved at the positions, located on the two sides of the one-way clutch device, of the wheel shaft (31), the rear wheel (3) and the wheel shaft (31) are fixed on the frame (1) through the bearings (32), and transmission wheels (33) are further fixed at the two ends of the wheel shaft (31) and located on the outer sides of the bearings (32); the two sides of the frame (1) are provided with driving slip ring devices (5), the transmission wheel (33) is positioned in the driving slip ring devices (5), the rotating center of the driving slip ring devices (5) is offset forwards relative to the wheel shaft (31), and the inner edge of the driving slip ring devices (5) is meshed with the outer edge of the transmission wheel (33); the pedals (4) are arranged on the driving slip ring device (5), the phase angles of the pedals (4) on the left side and the right side are different by half a circle, and the pedals (4) drive the transmission wheel (33) to rotate through the driving slip ring device (5), so that the rear wheel (3) is driven to rotate.

2. A power saving chainless bicycle as claimed in claim 1, wherein: the one-way clutch device is a one-way bearing (35), the one-way bearing (35) is sleeved on the wheel shaft (31), and the hub of the rear wheel (3) is sleeved on the one-way bearing (35).

3. A power saving chainless bicycle as claimed in claim 1, wherein: the driving slip ring device (5) comprises a fixing ring (51) and a slip ring (52), the slip ring (52) is accommodated at the inner edge of the fixing ring (51) and can freely rotate in the fixing ring (51), the fixing ring (51) is fixedly connected with the frame (1) to fix the whole driving slip ring device (5) on the frame (1), and the pedal (4) is fixedly connected to the outer side of the slip ring (52).

4. A power saving chainless bicycle as claimed in claim 1, wherein: the driving slip ring device (5) comprises a slip ring (52) and a plurality of guide seats (53), each guide seat (53) is fixed on the frame (1), a guide wheel (531) is arranged on each guide seat (53), the guide wheels (531) are located on the outer edge side of the slip ring (52), the guide wheels (531) limit the axial position of the slip ring (52), the slip ring (52) can rotate by taking the center of the slip ring (52) as an axis, and the pedals (4) are fixedly connected to the outer side of the slip ring (52).

5. The power-saving chainless bicycle as claimed in claim 4, wherein: the frame (1) comprises a front support (11), a rear support (12) and a transverse connecting frame (13) between the front support and the rear support, wherein a seat cushion (14) is arranged at the upper end of the rear support (12), a rear seat reinforcing support frame (15) is also arranged between the upper end of the rear support (12) and the transverse connecting frame (13), and the lower end of the rear support (12) is matched with a bearing and then continues to extend downwards to form a lower connecting frame (16); the four guide seats (53) are respectively fixed on the back support (12), the back seat reinforcing support frame (15), the transverse connecting frame (13) and the lower connecting frame (16).

6. A power saving chainless bicycle as claimed in claim 3 or 4, wherein: the inner edge of the slip ring (52) is provided with an inner insection (521), and the outer edge of the driving wheel (33) is provided with an outer insection (331) matched with the inner insection (521); the internal and external tooth patterns are mutually meshed.

7. A power saving chainless bicycle as claimed in claim 3 or 4, wherein: the inner edge of the slip ring (52) is provided with a chain ring (522), the inner edge of the chain ring (522) is provided with a chain groove, the outer edge of the driving wheel (33) is provided with an outer insection (331) matched with the chain ring (522), and the outer insection (331) is meshed with the chain groove.

8. A power saving chainless bicycle as claimed in claim 1, wherein: the driving slip ring device (5) comprises a slip ring (52) and a plurality of guide seats (53), each guide seat (53) is fixed on the frame (1), a guide wheel (531) is arranged on each guide seat (53), the guide wheels (531) are located on two sides of the inner edge and the outer edge of the slip ring (52), the guide wheels (531) limit the axial position of the slip ring (52), the slip ring (52) can rotate by taking the center of the slip ring (52) as an axis, and the pedals (4) are fixedly connected to the outer side of the slip ring (52).

9. A power saving chainless bicycle as claimed in claim 8, wherein: the outer end face of the slip ring (52) is provided with a circle of convex ring (523), the inner edge of the convex ring (523) is provided with inner insections, the outer edge of the driving wheel (33) is provided with outer insections (331) matched with the inner insections (521), and the outer insections (331) are meshed with the inner insections (521).

10. A power saving chainless bicycle as claimed in claim 8, wherein: the outer end face of the slip ring (52) is provided with a circle of convex ring (523), the inner edge of the convex ring (523) is provided with a chain ring (522), the inner edge of the chain ring (522) is provided with a chain groove, the outer edge of the driving wheel (33) is provided with an outer tooth pattern (331) matched with the chain groove, and the outer tooth pattern (331) is meshed with the chain groove.