CN217374807U - Pedal lever type bicycle - Google Patents

Abstract

The utility model provides a pedal lever bicycle, it includes the frame, front and back fork, the handlebar, the saddle, the front and back wheel, the front and back axle, swing joint has the swing arm lever on the back fork, be equipped with foot-operated lever transmission between the back flywheel that is equipped with on swing arm lever and the rear axle, foot-operated lever transmission includes the chain leading wheel, return spring, the speed changing slider, the back flywheel, drive chain, be equipped with speed adjusting device between speed changing slider and the handlebar, speed adjusting device is including the adjustment slider, the speed regulator is acted as go-between, the speed regulator on the handlebar, all be equipped with pedal on every swing arm lever, be equipped with the lever pivot between back fork and every swing arm lever respectively. The utility model discloses have the advantage of power, high-speed, simple structure, processing technical requirement and with low costs, the trouble incidence is few, the vehicle operation power preferred.

Description

Pedal lever type bicycle

Technical Field

The utility model relates to a bicycle field especially relates to a pedal lever bicycle.

Background

At present, the existing bicycles have the structure that a chain wheel on a middle shaft drives a rear flywheel to move forwards through a chain, a centripetal force is generated when a pedal goes downwards from an upper dead point, an outward centrifugal force is generated when the pedal goes to a lower dead point, a lot of physical power is wasted when the bicycle is ridden, and the speed can be increased only by accelerating the circular motion of the feet. Therefore, variable speed bicycles are available in the market, and the variable speed bicycles realize variable speed operation through a cone pulley, or a transmission shaft and a bevel gear.

Disclosure of Invention

The utility model aims at overcoming the defects existing in the prior art and providing a pedal lever type bicycle which has the advantages of labor saving, high speed, simple structure, processing technical requirement, low cost, less failure occurrence rate and better running power.

The purpose of the utility model is realized like this: the bicycle comprises a bicycle frame, a front fork, a rear fork, a handlebar and a bicycle seat are arranged on the bicycle frame, a front wheel is arranged on the front fork, a rear wheel is arranged on the rear fork, a front shaft is arranged between the front fork and the front wheel, a rear shaft is arranged between the rear fork and the rear wheel, swing arm levers with the same size and shape are movably connected to two outer sides of the rear fork in a symmetrical mode respectively, rear flywheels are arranged on the rear shafts between two inner sides of the rear fork and the rear wheel respectively, a pedal type lever transmission device is arranged between each swing arm lever and the corresponding rear flywheel on the same side, the pedal type lever transmission device comprises a swing arm lever, a speed change sliding block arranged on the swing arm lever, a rear flywheel on the same side as the swing arm lever, a chain guide wheel and a return spring clamp which are arranged on the same side of the swing arm lever on the bicycle frame, a return spring arranged on the return spring clamp, and a transmission chain arranged on the rear flywheel and the chain guide wheel and one end of which is connected to the return spring, and the other end of the speed change sliding block is connected to the speed change sliding block, the chain guide wheel is positioned on a frame between a saddle and a handlebar, the return spring clamp is positioned on the frame between the chain guide wheel and the handlebar, a speed regulating device is arranged between each speed changing slider and the corresponding handlebar on the same side, the speed regulating device comprises a speed changing slider, a speed regulator pull wire arranged on the speed changing slider, and a speed regulator arranged on the speed regulator pull wire, the speed regulator is arranged on the handlebar on the same side, a pull wire fixing ring is arranged between the speed regulator pull wire and a swing arm lever on the same side, and pedals are arranged on each swing arm lever.

And a lever rotating shaft is respectively arranged between the rear fork and each swing arm lever.

Due to the adoption of the technical scheme, the utility model provides a pedal lever bicycle has following advantage: the device has the advantages of labor saving, high speed, simple structure, low processing technical requirement and cost, less failure occurrence rate and better running power.

Drawings

Fig. 1 is a schematic front view of the present invention.

In the figure: 1. the bicycle comprises a swing arm lever, 2, a speed change slider, 3, a lever rotating shaft, 4, a return spring clamp, 5, a return spring, 6, a chain guide wheel, 7, a transmission chain, 8, a speed regulator pull wire, 9, a saddle, 10, a rear flywheel, 11, a rear wheel, 12, pedals, 13, a speed regulator, 14, a handlebar, 15, a rear shaft, 16, a front fork, 17, a front shaft, 18, a front wheel, 19, a rear fork, 20, a frame, 21 and a pull wire fixing ring.

Detailed Description

As shown in figure 1, the utility model provides a pedal lever type bicycle includes frame 20, is equipped with front and back fork, handlebar 14, saddle 9 on the frame 20, is equipped with front wheel 18 on the front fork 16, is equipped with rear wheel 11 on the rear fork 19, is equipped with front axle 17 between front fork 16 and the front wheel 18, is equipped with rear axle 15 between rear fork 19 and the rear wheel 11, two outsides of rear fork 19 on swing arm lever 2 with the same size and shape of swing arm lever swing joint respectively with the mode of symmetry, be equipped with rear flywheel 10 respectively on the rear axle 15 between two inboards of rear fork 19 and the rear wheel 11, all be equipped with pedal lever transmission between every swing arm lever and the corresponding homonymy rear flywheel, pedal lever transmission includes swing arm lever 1, the variable speed slider 2 that is equipped with on swing arm lever 1, rear flywheel 10 with swing arm lever 1 homonymy, be equipped with on the frame 20 with the chain leading wheel 6 and return spring clamp 4 of swing arm lever 1 homonymy, The bicycle speed regulation device comprises a return spring 5 arranged on a return spring clamp 4, a transmission chain 7 arranged on a rear flywheel 10 and a chain guide wheel 6, wherein one end of the transmission chain 7 is connected to the return spring 5, the other end of the transmission chain 7 is connected to a speed change slider 2, the chain guide wheel 6 is arranged on a bicycle frame 20 between a saddle 9 and a handlebar 14, the return spring clamp 4 is arranged on the bicycle frame 20 between the chain guide wheel 6 and the handlebar 14, a speed regulation device is arranged between each speed change slider 2 and the corresponding handlebar 14 on the same side, the speed regulation device comprises a speed change slider 2, a speed regulator stay wire 8 arranged on the speed change slider 2 and a speed regulator 13 arranged on the speed regulator stay wire 8, the speed regulator 13 is arranged on the handlebar 14 on the same side, a stay wire fixing ring 21 is arranged between the speed regulator stay wire 8 and a swing arm lever 1 on the same side, each swing arm lever is provided with a pedal 12, and a lever rotating shaft 3 is respectively arranged between a rear fork 19 and each swing arm lever.

When the bicycle is used, a user sits on the saddle 9, places feet on the pedals 12 to pedal downwards, the pedals 12 move from the highest point to the lowest point, meanwhile, the swing arm lever 1 rotates around the lever rotating shaft 3, the speed changing slide block 2 on the swing arm lever 1 moves downwards, the end part of the transmission chain 7 connected to the speed changing slide block 2 moves downwards and drives the rear flywheel 10 to rotate around the chain guide wheel 6, the rear flywheel 10 drives the rear shaft 15 and the rear wheel 11 arranged on the rear shaft 15 to rotate, meanwhile, the return spring 5 arranged at the other end of the transmission chain 7 is tensioned, and the rear wheel 11 rotates to enable the bicycle to start to move forwards.

When the pedals 12 are at the lowest position, the user bends the legs to move the pedals 12 upwards, the transmission chain 7 connected to the return spring 5 pulls the speed changing slide block 2 to move upwards under the action of the elastic force of the return spring 5 and the lever rotating shaft 3, and meanwhile, the speed changing slide block 2 drives the swing arm lever 1 and the pedals 12 on the swing arm lever 1 to return to the highest point so as to start working again. Thus, the two feet are continuously stepped on, the rear wheel continuously rotates, and the bicycle moves forwards together with the front wheel.

Meanwhile, the speed governor 13 on the handlebar 14 is pressed as necessary to tighten or loosen the speed governor rope 8 by the speed governor 13. When the speed regulator pull wire 8 is tensioned, the speed change slider 2 connected to the speed regulator pull wire 8 is driven to move backwards on the swing arm lever 1, the speed change slider 2 is far away from the pedal 12, the movement of the speed change slider 2 enables the downward force displacement length of the swing arm lever 1 to be shortened, and the force required for pedaling the pedal 12 is larger; on the contrary, when the speed regulator 13 loosens the speed regulator pull wire 8, the speed change slider 2 connected to the speed regulator pull wire 8 is driven to move forward on the swing arm lever 1 and approach the pedal 12, the movement of the speed change slider 2 makes the downward force displacement length of the swing arm lever 1 longer, and the force of the pedal 12 is smaller, so that the same power can be achieved.

Claims (2)

1. A pedal lever type bicycle comprises a frame, wherein a front fork, a rear fork, a handlebar and a saddle are arranged on the frame, a front wheel is arranged on the front fork, a rear wheel is arranged on the rear fork, a front shaft is arranged between the front fork and the front wheel, and a rear shaft is arranged between the rear fork and the rear wheel The bicycle comprises a movable chain, a chain guide wheel is positioned on a bicycle frame between a bicycle seat and a bicycle handlebar, a return spring clamp is positioned on the bicycle frame between the chain guide wheel and the bicycle handlebar, a speed regulating device is arranged between each speed changing slide block and the corresponding bicycle handlebar on the same side, each speed regulating device comprises a speed changing slide block, a speed regulator pull wire arranged on each speed changing slide block, a speed regulator arranged on each speed regulator pull wire, the speed regulators are arranged on the speed regulators, the speed regulators are arranged on the bicycle handlebars on the same side, a pull wire fixing ring is arranged between each speed regulator pull wire and a swing arm lever on the same side, and pedals are arranged on each swing arm lever.

2. A pedal leverage bicycle as claimed in claim 1 wherein a lever pivot is provided between the rear fork and each swing arm lever.

Images