CN2051209U - Labour-saving device for bick - Google Patents

Abstract

The utility model discloses a bicycle labour saving drive, relating to an auxiliary driving drive of the labour saving of the bicycle. The utility model comprises a handle, a steel cable, a rocking bar and an accumulator. The handle is positioned at the left side of handlebars, and the handle is connected with the rocking bar by the steel cable and a spring. The accumulator is arranged at the middle lower part of the tripod or the V-shaped rack of the bicycle, and a chainwheel is arranged at the left side of the wheel hub of the back wheel. When the bicycle runs or runs on the downhill road, by using the accumulator, the kinetic energy of the bicycle can be stored while a user stop treading pedals, and the kinetic energy of the bicycle can release out when the bicycle does acceleration running on the uphill road or the flat road; so the electrical energy, the chemical energy or the mechanical energy which are provided additionally can realize no consumption, and the labour saving and the acceleration purpose can be realized when the bicycle goes ahead. When the utility model is used, the easy assembly and disassembly is realized, and the original bicycle structure is not changed. The bicycle labour saving drive can be used for a man-power tricycle.

Description

Labour-saving device for bick

The utility model relates to the driving device of bicycle, especially utilizes tightening and loosening (storage, exoergic) and be the labour-saving accessory drive gear of characteristics of spring (wind spring) for a kind of.

Existing bicycle power-saving devices divides variable speed model and power type two classes.Variable speed model work-saving device system changes the transmission speed ratio of sprocket wheel according to different road surface situations, and is laborsaving, time-consuming, but do not economize merit, can not significantly alleviate people's physical demands; The power type work-saving device then needs to add holding storage battery, electrical motor or miniature gasoline engine on bicycle, though the labor-saving effect is better, consumes energy increases aerial contamination and driving cost.

The utility model is to overcome the weak point of above-mentioned prior art, and the small and exquisite practicality on a kind of bicycle, mechanical type work-saving device easy to operate, free from environmental pollution are provided.

The utility model is by energy storage, handle, cable wire, form with rocking bar four parts.Energy storage adopts mechanical type work to be mounted on the middle below of the spider or the lady's bicycle wishbone of in men's style frame.Kinetic energy when stopping pedal when energy storage can be the bicycle descending or in advancing stores, go up a slope or flat road surface on discharge when quickening, need not to consume other electric energy of establishing in addition, chemical power or source of mechanical energy and reach laborsaving and the purpose of quickening.

This energy storage is made of parts such as metal case, driving chain wheel, chain, gear, power-transfer clutch safety device, clockwork spring (wind spring), brake wheel, interlock system, spring, axles, and interlock system and rocking bar link together.Its part is contained in the metal shell, and the metal case outside has ear handle, card hub (button) to link together with the spider of in men's style bicycle or the wishbone of lady's bicycle.The drive sprocket of energy storage is arranged on the external diameter of the bearing shell on the left of the bicycle rear wheel hub, be running-fit between its external diameter and the drive sprocket endoporus, be drilled with four holes on the drive sprocket disc, two arcs that short screw passes hole and wheel hub chain inboard link together, and the drive sprocket of energy storage just can rotate synchronously with bicycle rear like this.

Description of drawings is as follows:

Fig. 1-bicycle power-saving devices scheme of installation;

The A-A cutaway view of energy storage 1 in Fig. 2-bicycle power-saving devices;

" B " is to part sectional view in Fig. 3-energy storage;

" C " is to part sectional view in Fig. 4-energy storage;

" D " is to part sectional view in Fig. 5-energy storage.

Parts explanation in the accompanying drawing:

The 1-energy storage, 2-handle, 3-cable wire, 4-rocking bar, 5-sprocket wheel; the 6-chain, 7-sprocket wheel, 8-gear, 9-gear; 10-overload protective device (claiming unidirectional input clutch again), 11-gear (gear ring), the 12-mono-directional overrun clutch claims unidirectional input clutch again); the 13-wind spring, 14-gear, 15-gear, 16-brake wheel; 17-tooth motion block, 18-draws key, and 19-regulates plug screw, 20-spring; the 21-steel ball, 22-steel ball, 23-spring, 24-spring.

Embodiment in conjunction with the accompanying drawings further specifies as follows:

This work-saving device is by energy storage 1, handle 2, and cable wire 3 is formed with rocking bar 4 four parts.Energy storage 1 adopts mechanical type connection alive, be installed in the middle below of in men's style frame spider or the middle below of lady's bicycle vehicle body wishbone, just above the bicycle middle shaft shell, in the wishbone, like this, do not influence the upper and lower of cyclist and driving action fully.The original structure that does not all change bicycle is loaded onto or pulled down to energy storage 1.The enclosure material of energy storage 1 can be metal, also can be rigid plastic.

The inner structure of energy storage 1 as shown in Figure 2, Fig. 2 is the A-A cutaway view of energy storage 1.Four axle I, II, III, IV that are parallel to each other are arranged in the energy storage 1, and its mutual alignment as shown in Figure 1.The axle I is a bicycle rear shaft, sprocket wheel 5 is arranged on the left side of rear-wheel hub, rotate synchronously with bicycle rear, just sprocket wheel 5 is arranged on the external diameter of bicycle rear wheel hub left side bearing shell, between its external diameter and sprocket wheel 5 endoporus is running-fit, be drilled with four holes on sprocket wheel 5 formers, two arcs that short screw passes hole and wheel hub chain inboard are fixed together.The axle II is positioned at the axis top of bicycle, on the axle II sprocket wheel 7 is installed, gear 8 and gear 15.This two gear is connected and transfer torque with the axle II by drawing key (claiming feather key again) 18.Feather key 18 often keeps being connected with gear 8 under spring 24 effects, therefore axle II driven gear 8 rotations, and gear 15 does not change.When pressing lower handle 2, by cable wire 3, overcome the pressure of spring 24, make rocking bar 4 pulling feather keys and gear 8 disengagements and feather key is entered in the wheel hub groove of gear 15, then gear 15 rotates synchronously with an axle II, and tooth 8 does not change.The axle III is positioned at an II top, on the axle III gear 9 is housed, and power-transfer clutch 12 is with wind spring 13.The centre of gear 9 is equipped with overload protective device 10(and is seen Fig. 3), gear 9 endoporus are greater than a square shaft at III place, on the boss of gear 9 wheel hubs one end, are provided with four tapped bore, and steel ball 21, spring 20 are installed in its hole, regulate plug screw 19.When the resisting moment of axle III surpasses certain limit when rolling-in (wind spring fully), compressing steel ball 21 enters and is provided with stage clip 20, regulates in the hole of plug screw 19, is symmetrical arranged four steel ball component along circumference, gear 9 just dallies on the axle III like this, no longer to the wind spring intake.In the middle of the gear (gear ring) 11 mono-directional overrun clutch 12(is housed and sees Fig. 4).When the axle III clockwise rotated, gear (gear ring) 11 skidded on the axle III and does not rotate.Be actually power-transfer clutch 12 with the axle III between for key is connected, the power-transfer clutch outer rim is provided with three breach of setting one's teeth on edge, and is equipped with steel ball 22, spring 23 is a running-fit between gear (gear ring) 11 endoporus and power-transfer clutch 12 outer rims.Only release energy when driving an axle III and rotating counterclockwise, could rotate synchronously by driven gear 11,, and the moment of torsion of wind spring 13 generations is put on the II, realize laborsaving purpose through gear 14, gear 15 at wind spring 13.The hand of rotation that turning to of Fig. 2 axis, its dotted line produced when representing that wind spring reverses.

Two kinds of motion states of this work-saving device are described below:

1, energy input

Bicycle descending or when the smooth road going and since draw key 18 through strong point in gear 8 link positions, the rotating counterclockwise of bicycle rear (standing in the bicycle left side sees), by sprocket wheel 5, chain 6, sprocket wheel 7, band moving axis II rotates counterclockwise. And by gear 8, gear 9 band moving axis III clockwise rotate, and the wind spring 13 that axle III right-hand member is installed screws gradually, reaches the purpose of input energy. At this moment, mono-directional overrun clutch 12 idle running, the assurance energy is only imported and is not exported.

When energy reaches wind spring 13 when saturated, overload protective device 10 skids, though gear 9 rotates, and an axle III is not changeed, intake no longer, and the protection wind spring is disconnected by volume.

2, energy output

When bicycle is climbed or travel the needs acceleration on flat road surface, depress handle 2, affect rocking bar 4, feather key 18 is entered gear 15 by pulling out in the gear 8, make slipper 17 loosen the brake drums 16 simultaneously.Energy stored is just passed through mono-directional overrun clutch 12 driven gears 11 in the wind spring 13, gear 14, and gear 15 passes to an II, drives an axle II and rotates counterclockwise.Pass through sprocket wheel 7 again, chain 6, sprocket wheel 5 drives bicycle rear and rotates counterclockwise, and reaches purpose laborsaving and acceleration.

Through design calculation, optionally use following parameter:

Gear 8=15 tooth; Gear 9=60 tooth; Gear 11=20 tooth; Gear 14=12 tooth; Gear 15=31 tooth; Module of gear m=2, wind spring thickness δ=1.5mm, width B=30mm, wind spring maximum output torque Mmax=2.4Kg.m.After amplifying through transmission, it is rotating torque that bicycle rear can obtain 6Kg.m again.Can reach significant laborsaving and quicken purpose.

The maximum outside diameter of this work-saving device (energy storage part) gabarit is about 250mm, about the about 60mm of thickness, and compact conformation, mounting or dismounting are convenient.

This work-saving device also can be used on the non-power-driven vehicles such as general manual tricycle.

The utility model-bicycle power-saving devices has following good effect:

1, laborsaving, quicken, significantly alleviate people's physical demands.

2, do not need to establish in addition any energy, do not cause aerial contamination yet.

3, little, in light weight, the flexible operation of volume, safety, reliable.

4, can significantly improve the technical performance of existing bicycle, both be suitable for the remodeling of new car, be suitable for the transformation of used car again, can be used as an annex on the bicycle.

5, the technical market is extensive, all can install or pull down this work-saving device easily on men and women's formula bicycle of general city, rural area or mountain city, mountain area, intersected country, and load onto or pull down work-saving device, does not all need to change the structure of former bicycle.

6, this work-saving device also can be installed, be applied on the general manual tricycle or on other non-maneuverable vehicle.

Claims (2)

1, a kind of general bicycle with shelf, handlebar, vehicle seat, clothes hanger, leg, wheel rim, tire, flywheel, chain, wheel disc, pedal and bell, lock, lock is characterized in that:

The work-saving device of being installed on a, this car is by energy storage 1, handle 2, cable wire 3, rocking bar 4 four parts are formed, and handle 2 is arranged on the handlebar left side, and are connected by cable wire 3, spring 24 between the rocking bar 4, be provided with four axle I that are parallel to each other, II, III, IV in the energy storage 1, an axle I is a bicycle rear axle, sprocket wheel 5 is arranged on the left side of rear wheel hub, on the axle II sprocket wheel 7 is installed, gear 8, gear 15 is equipped with gear 9 on the axle III, mono-directional overrun clutch 12, wind spring 13 is equipped with gear 14 on the axle IV

Overload protective device 10 is equipped with in cog 9 centre of b, axle III, and its structure is that the endoporus of gear 9 is greater than a square shaft at III place, and the boss of gear 9 wheel hubs one end is provided with four tapped bore, and steel ball 21 is arranged in the hole, and spring 20 is regulated plug screw 19,

The middle part is provided with mono-directional overrun clutch 12 on c, the axle III, its structure be power-transfer clutch 12 with the axle III between for key is connected, the power-transfer clutch outer rim is provided with three breach of setting one's teeth on edge, and is equipped with steel ball 22 in the breach, spring 23 is a running-fit between the outer rim of the endoporus of gear ring 11 and power-transfer clutch 12.

2,, it is characterized in that the connection structure between said sprocket wheel 5 and the axle I is according to the described bicycle of claim 1:

Sprocket wheel 5 is arranged on the external diameter of bicycle rear wheel hub left side bearing shell, is running-fit between its external diameter and sprocket wheel 5 endoporus, is drilled with four holes on the disc of sprocket wheel 5, and two arcs that short screw passes hole and wheel hub chain inboard are fixed together.

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