CN210707787U

CN210707787U - Power-saving bicycle

Info

Publication number: CN210707787U
Application number: CN201921305221.4U
Authority: CN
Inventors: 梁宣耕
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-06-09
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to a laborsaving bicycle adopts about pedal cooperation from top to bottom, adopts flexible arm to be connected between pedal and the axis, controls and still sets up canceling release mechanical system between pedal, controls and adopts the fixed arm to be connected between pedal and the canceling release mechanical system, and the opposite side is pedal to rise through canceling release mechanical system is automatic when stepping on down, because the utility model discloses pedal up-and-down motion that only is the small range about, can improve the frequency of riding greatly, simultaneously the utility model discloses about pedal up-and-down motion in the region in axis the place ahead, this region is the power region of saving labour most, consequently has laborsaving efficient characteristics.

Description

Power-saving bicycle

Technical Field

The utility model relates to a bicycle technique specifically is a laborsaving 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 labor-saving bicycle still adopts the traditional mode to ride, the left pedal and the right pedal are matched in a circumferential mode, the real power output is mainly concentrated in the pedal position in front of the center shaft in the pedal rotation one-circle process, when the left pedal and the right pedal are positioned at the upper top and the lower top, the left foot and the right foot are switched by means of inertia basically without power output, meanwhile, the traditional circumferential rotation pedal driving mode is realized due to the fact that the stroke is long, the pedal is close to one stroke of the upper top and the lower top, the power output needs to be realized by changing the pedal stepping direction through the ankle, and therefore the output of power.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laborsaving bicycle, about adopting pedal cooperation from top to bottom, adopting flexible arm to be connected between pedal and the axis, still set up canceling release mechanical system about between pedal, about adopting the fixed arm to be connected between pedal and the canceling release mechanical system, the opposite side is pedal through canceling release mechanical system automatic rising when stepping on down, because the utility model discloses pedal up-and-down motion that only is the small range about, can improve the frequency of riding greatly, simultaneously the utility model discloses about pedal up-and-down motion in the region in axis the place ahead, this region is the most laborsaving region of power, consequently has laborsaving efficient characteristics.

The following technical scheme is adopted for achieving the purpose:

a labor-saving bicycle comprises a frame, a front wheel, a rear wheel and a pedal, wherein a middle shaft is arranged on the frame, a chain wheel is arranged on the middle shaft, and the chain wheel is connected with the rear wheel through a chain, and the labor-saving bicycle is characterized in that: the bicycle frame is characterized in that a reset mechanism is fixedly connected to the front side of the middle shaft of the bicycle frame, connecting shafts are symmetrically arranged on the left side and the right side of the reset mechanism in a bilateral mode, the connecting shafts on the left side and the right side are fixedly connected with pedals through fixing arms, the pedals on the left side and the right side are connected with the middle shaft through telescopic arms, the telescopic arms are sleeved at two ends of the middle shaft through one-way bearings, the pedals on the left side and the right side are respectively located on the upper side and the lower side of a connecting line of the connecting shafts and the middle shaft, the fixing arms on.

The reset mechanism comprises a box body, a left gear shaft and a right gear shaft, the left gear shaft and the right gear shaft are separated from each other and coaxially pivoted on the box body, the connecting shaft is a shaft part of the left gear shaft or the right gear shaft, one end of the connecting shaft extends out of the box body and is fixedly connected with the fixing arms on the left side and the right side respectively, the tooth parts of the left gear shaft and the right gear shaft are meshed with the tooth parts of the reset gear shafts simultaneously, and the reset gear shafts are pivoted on the box body through the shaft parts; the box body is fixedly connected with the frame.

The box inside be provided with the connecting seat, the connecting seat rear side is fixed on the box inner wall, left and right gear shaft pin joint is in the left and right sides of connecting seat, the front side of reset gear shaft pin joint connecting seat, the axial of left and right driving tooth is perpendicular with the axial of reset gear shaft.

The connecting shaft and the middle shaft are positioned at the same horizontal height.

And a clutch is arranged between the chain wheel and the middle shaft.

The utility model discloses about pedal reverse motion about realizing under canceling release mechanical system's cooperation, because canceling release mechanical system's connecting axle is located centraxonial front side, pedal one circulation gets off about this, flexible arm only a fan-shaped regional internal rotation, because about pedal motion region is restricted in the region in centraxonial the place ahead, this region is from centraxonial apart from the region of centraxonial distance farthest, be equivalent to pedal the longer region in the arm of force all the time, just so reach laborsaving effect, this regional power take off is also more stable, simultaneously because pedal up-and-down motion, can promote pedal frequency, make the bicycle ride more high-efficient laborsaving.

Drawings

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

fig. 2 is a schematic structural diagram of the resetting mechanism of the present invention.

Detailed Description

As shown in fig. 1 and 2, a labor-saving bicycle comprises a frame 1, a front wheel 2, a rear wheel 3 and pedals 4, wherein a middle shaft 5 is arranged on the frame, a chain wheel 51 is arranged on the middle shaft 5, a clutch is arranged between the chain wheel and the middle shaft, the chain wheel 51 is connected with the rear wheel 3 through a chain, a reset mechanism 6 is fixedly connected to the front side of the frame 1, which is positioned on the middle shaft 5, the reset mechanism 6 is bilaterally and symmetrically provided with connecting shafts 62, and the connecting shafts 62 and the middle shaft 5 are positioned at the same horizontal height; the connecting shafts 62 on the left side and the right side are fixedly connected with the pedals 4 through the fixed arms 7, the pedals 4 on the left side and the right side are connected with the middle shaft 5 through the telescopic arms 8, the telescopic arms 8 are sleeved at two ends of the middle shaft 5 through one-way bearings, the pedals 4 on the left side and the right side are respectively positioned at the upper side and the lower side of a connecting line of the connecting shafts 62 and the middle shaft 5 and positioned at the front side of the connecting shafts 62, the fixed arms 7 on the left side and the right side are linked through the reset mechanism 6, and the reset mechanism 6 enables the fixed.

The reset mechanism 6 comprises a box body 61, a left transmission gear 66 and a right transmission gear 67, a connecting seat 63 is arranged in the box body 61, the rear side of the connecting seat 63 is fixed on the inner wall of the box body 61, the left transmission gear and the right transmission gear are fixedly connected to a left connecting shaft 62 and a right connecting shaft 62 respectively, the left connecting shaft and the right connecting shaft are pivoted at the left side and the right side of the connecting seat 63, the other ends of the left connecting shaft and the right connecting shaft extend out of the box body and are fixedly connected with a fixing arm 7 at the left side and the right side respectively, a reset gear shaft 65 is pivoted at the front side of the connecting seat, the left transmission gear and the right transmission gear are meshed with tooth parts of the; the box body 61 is fixedly connected with the frame 1.

When the utility model is used, the left foot and the right foot alternately step on the pedals, because the left foot and the right foot are linked through the reset mechanism 6, when the pedal on one side steps on, the pedal on the other side reversely rotates and automatically rises, meanwhile, the rotating shaft of the pedal is the connecting shaft 62, the pedal is positioned on the front side of the connecting shaft 62, the connecting shaft 62 is arranged in front relative to the middle shaft, which is equivalent to lengthening the force arm length from the pedal to the middle shaft, and the pedal is more labor-saving; the utility model discloses when advancing, there is the flywheel to keep apart between rear wheel and the sprocket, but when the bicycle retreats, the rear wheel passes through the flywheel and the chain drives the sprocket is rotatory together, because the utility model discloses a sprocket can not encircle rotatoryly owing to flexible wall and fixed wall restriction, can only be at sector area internal reciprocating rotation, consequently need be provided with the clutch between sprocket and axis, when the vehicle need retreat, need switch over the clutch to the detached state, when the bicycle retreats like this, makes sprocket and axis separation, and the sprocket can normal circumferential motion.

The utility model changes the traditional pedal circular motion mode, because the utility model discloses the rotation center of pedal 4 is connecting axle 62, connecting axle 62 is forward biased for axis 5, the pedal distance to the axis can change when the pedal rotates, therefore need to adopt the arm of rising and contracting freely to adjust the length between pedal and the axis, simultaneously the pedal motion orbit is equivalent to the up-and-down reciprocating motion in the front side small range radian area of axis, this area is the farthest area relative to the axis distance, the pedal arm of force is longer, it is comparatively laborsaving to do work in this area; meanwhile, due to the fact that the pedals do not move circularly, an area with small power output in circular motion is omitted, namely, useless idle stroke is omitted, and accordingly riding efficiency is improved.

Claims

1. The utility model provides a laborsaving bicycle, includes frame (1), front wheel (2), rear wheel (3) and pedal (4), is provided with axis (5) on the frame, is provided with sprocket (51) on axis (5), and sprocket (51) pass through the chain and are linked with rear wheel (3), its characterized in that: the bicycle frame is characterized in that a reset mechanism (6) is fixedly connected to the front side of a middle shaft (5) of the bicycle frame (1), connecting shafts (62) are symmetrically arranged on the left side and the right side of the reset mechanism (6), the connecting shafts (62) on the left side and the right side are fixedly connected with pedals (4) through fixing arms (7), the pedals (4) on the left side and the right side are connected with the middle shaft (5) through telescopic arms (8), the telescopic arms (8) are sleeved at two ends of the middle shaft (5) through one-way bearings, the pedals (4) on the left side and the right side are respectively located on the upper side and the lower side of a connecting line of the connecting shafts (62) and the front side of the connecting shafts (62), the fixing arms (7) on the left side and the right side are linked through the reset mechanism (6), and the reset.

2. A power saving bicycle as claimed in claim 1, wherein: the reset mechanism (6) comprises a box body (61), a left transmission gear (66) and a right transmission gear (67), wherein the left transmission gear and the right transmission gear are fixedly connected to a left connecting shaft and a right connecting shaft respectively, one end of the left connecting shaft and one end of the right connecting shaft extend out of the box body and are fixedly connected with a fixed arm (7) on the left side and a fixed arm on the right side respectively, the left transmission gear and the right transmission gear are meshed with tooth parts of a reset gear shaft (65) simultaneously, and the reset gear shaft (65) is pivoted on the box body (61) through; the box body (61) is fixedly connected with the frame (1).

3. A power saving bicycle as claimed in claim 2, wherein: the box (61) inside be provided with connecting seat (63), connecting seat (63) rear side is fixed on box (61) inner wall, left and right connecting axle pin joint is in the left and right sides of connecting seat (63), reset tooth axle (65) pin joint connecting seat's front side, the axial of left and right driving tooth is perpendicular with the axial of reset tooth axle (65).

4. A power saving bicycle as claimed in claim 1, wherein: the connecting shaft (62) and the middle shaft (5) are positioned at the same horizontal height.

5. A power saving bicycle as claimed in claim 1, wherein: a clutch is arranged between the chain wheel (51) and the middle shaft.