CN2458221Y - Lever type light bicycle - Google Patents

Abstract

The utility model relates to a lever type light bicycle which belongs to a walking substituting bicycle improved by aiming at the defect of the existing bicycle. The utility model is mainly characterized in that a chain wheel is alternately driven by a pair of pedal levers for driving a rear wheel to move, and the bicycle can be driven even by the standing gravity of the body. Damping springs which can be increased or decreased for satisfying the requirements are arranged below a saddle tube capable of stretching or contracting in a large range, handlebars whose four sides can be grasped are in a kidney shape, and the handlebars can be connected with an upright tube in a turnover mode. A main tube of a front fork can be reversely folded and can elastically adjust the height of the upright tube of the handlebars, and both sides of the rear wheel are respectively provided with a small supporting wheel. The technique can reduce the bicycle body, the carrying and the storage are convenient, and the bicycle can be ridden with labor saving. The operation is safe, and the regulating requirements of various ages and conditions are satisfied.

Description

The lever portable bicycle

The utility model lever portable bicycle is the bicycle of riding instead of walk.

Existing bicycle is with pin drive sprocket crank, thereby has determined vehicle body taller and bigger, uses relatively effort; In addition, stem and damping spring immobilize, and seatpillar amplitude modulation is very little, can not satisfy all ages and classes, different height, different brachium, different weight person's adjusting needs; Vehicle body only has two fulcrums, topples over easily, and safety inadequately, the beginner feels difficulty, the old, the more difficult adaptation of teenager deeply.This lever portable bicycle improves at these defectives and forms.Do not see relevant up-to-date technology.

The purpose of the utility model lever portable bicycle is, innovates a kind of bicycle, and utilization pedal lever structure drive sprocket crank makes laborsaving by bike; With kidney shape adjustable bicycle handlebar be engaged on can right and wrong, telescopic vertical tube of front fork on, and seatpillar can be stretched significantly, and under it, damping spring is set, make vehicle body can be high, can be low, regulate height, distance, wushu, elasticity and flexible vehicle body, the needs that are easy to carry, store to satisfy; If a pair of support steamboat makes vehicle body stable, solve the safety problem of using.

The utility model is achieved in that with metallic material makes the design-calculated vehicle frame, and with part and customised left and right sides cranks such as existing procucts sprocket shaft, bearing, sprocket wheels, assembly is fixed thereon.Make two pedal levers, the barring gear that is located on the vehicle frame is entangled in terminal perforate, makes it to be to rotate to be connected, and constitutes balance pivot.Make two connecting rods that two is with holes, connect lever and crank respectively, be rotatable and be connected, Anti-slip pedal is made in the foot position of stepping on of two levers, makes two pedals alternately stressed, alternately falling-rising.Drivening rod and crank, sprocket wheel running interlock chain, flywheel make the trailing wheel running; Make a seatpillar, open a vertical elongated slot on pipe, seatpillar is inserted in the sleeve pipe that is fixed on the vehicle frame, can slide up and down, a threaded pin is established on sleeve pipe top, can enter or withdraw from the seatpillar longitudinal slot, so that saddle is directed and loading and unloading; The damping spring of making multiple order of magnitude, multi-segmental selects for the different weight person and places in the sleeve pipe and mouth of pipe top, subtracts hop count, specification to satisfy the adjusting of height, elastic force by altar, and the supporting of spring is realized by the mouth of pipe and the movable pin that is arranged on the sleeve pipe end opening; Select less front-wheel, leave degree of growing tall of top as far as possible for.Make the standpipe that connects fork blade, pass before the vehicle frame behind the vertical tube, having backward can be tortuous, upwards can fix upright right and wrong joint, and establishing at mouth of pipe position one can pine, fastener that can be tight, stem inserts vertical tube of front fork, by fastener locking handlebar direction and adjusting handlebar height.Vertical tube of front fork is rolled over down backward, and vehicle body reduces, and is easy to carry, stores.But make all kidney shape handlebars of handle of one or four limits, be turning, lockable with stem and be connected, so that regulate height, distance, ride appearance and handle mode.Make two triangle frames, be individually fixed in the vehicle frame of hind axle ordinate, at following acute ends device steamboat, vehicle body stressed if little when inclining steamboat play a supportive role, thereby realize that vehicle body is stable, safe in utilization.Other required parts of this lever portable bicycle constitute with suitable existing product and are perfect.Make protective cover with suitable sheet material at last, positions such as sprocket wheel, flywheel, part trailing wheel are covered in the lump.

Take a broad view of this lever portable bicycle following advantage compared with prior art arranged:

1, because lever force brachium and crank are short, then quicken fast, drive laborsavingly, even can stand and utilize the driving of health gravity drive.2, vehicle body is less, rides, is with light, and center of gravity is lower, and supported at three point is arranged again, can not topple over, and is safe in utilization; 3, vertical tube of front fork can be rolled over down, and stem and seatpillar are scalable, but handlebar four limit handles are and turning, the damping spring changeable of setting, thereby satisfied the needs that all ages and classes, different height, different weight person regulate use, be of value to healthy.These advantages, prior art does not have comparability.

Accompanying drawing is the scheme drawing of this lever portable bicycle.1 is saddle among the figure, the 2nd, and seatpillar, the 3rd, longitudinal slot, the 4th, sleeve pipe, the 5th, clothes hanger, the 6th, sprocket wheel, the 7th, crank, the 8th, sprocket shaft bearing sleeve, the 9th, chain, the 10th, connecting rod, the 11st, spring, the 12nd, sprocket shaft bearing sleeve support, the 13rd, flywheel, the 14th, trailing wheel, the 15th, triangle frame, the 16th, fulcrum, the 17th, steamboat, the 18th, movable pin, the 19th, lever, the 20th, Anti-slip pedal, the 21st, vehicle frame, the 22nd, handlebar, the 23rd, fastener, the 24th, vertical tube of front fork, the 25th, front-wheel, the 26th, stem, the 27th, right and wrong joint.

Embodiment following (in conjunction with the signal description of drawings): make vehicle frame 21 and sprocket shaft bearing sleeve support 12 with metal tube, assemblies such as sprocket shaft, bearing, bearing carrier ring 8 sprocket wheels 6 are fixed in support 12, make two and match with sprocket shaft and to merge the crank 7 of device connecting rod rotating shaft, be installed on the sprocket shaft two ends respectively; Make the pedal lever 19 of two bands rotating shaft, the barring gear that is located on the vehicle frame is entangled in terminal perforate respectively, makes it to be to rotate to be connected, constitute leverage points and prop up 16, make two connecting rods 10 that two ends are with holes, connect lever 19 and crank 7 respectively, all be and rotate linking, two levers are stepped on the foot position and are made Anti-slip pedal 20, make two pedals 20 replace stressed alternately falling-rising, drivening rod 10 and crank 7, sprocket wheel 6 runnings, interlock chain 9, flywheel 13, trailing wheel 14.Make seatpillar 2 with metal tube, open vertical elongated slot 3 on pipe, perforate precession threaded pin on sleeve pipe 4 inserts sleeve pipe 4 with seatpillar 2, and threaded pin is goed deep in the elongated slot 3, in sleeve pipe 4 end opening perforates, movable pin 18 is set.Select the damping spring that satisfies height, elastic force needs, place sleeve pipe 4 suitable for reading reaching wherein.But be bent into all kidney shape handlebars 22 of handle of four limits with metal tube, be turning with stem 26 and be connected; Make the standpipe 24 that connects fork blade, make its pass have behind the vertical tube before the vehicle frame one backward can be tortuous, upwards can fix upright right and wrong joint 27, establish fastener 23 at the mouth of pipe, stem 26 is inserted wherein, direction on demand, highly lock.Make two right angle trigonometry frames 15, be individually fixed on the vehicle frame of trailing wheel 14 longitudinal axiss, in following acute ends a rolling steamboat 17 is installed respectively, buying car in installments plays a supportive role when the power of experiencing is little inclines.Other required parts of this lever portable bicycle all constitute with suitable existing procucts, and perfect.Make protective cover with suitable sheet material at last, the part of needs such as sprocket wheel 6, flywheel 13, connecting rod 10, lever 19, trailing wheel 14 protection is covered cover in the lump.

Claims (1)

1, the utility model lever portable bicycle, its principal character is, two pedal levers are arranged, terminal respectively with vehicle frame on the member that is provided be rotating shaft and be connected the fulcrum that constitutes lever, two connecting rods are to rotate with lever and sprocket crank respectively and are connected, Anti-slip pedal is made in the foot position of stepping on of two levers, two pedals replace the crank on stressed alternately falling-rising drivening rod and the sprocket wheel, sprocket wheel interlock chain, flywheel makes the trailing wheel running, longitudinal slot is arranged on the seatpillar, can slide up and down in the sleeve pipe of seatpillar on vehicle frame, sleeve pipe top has a threaded pin can enter or withdraw from the seatpillar longitudinal slot, sleeve pipe suitable for reading and the pipe in the bottom be provided with damping spring, the sleeve pipe end opening has the movable pin of a support spring, having on the vertical tube of front fork one backward can be tortuous, upwards can fix upright right and wrong joint, but the mouth of pipe has the fastener of a degree of tightness, but handlebar is all kidney shapes of handle of four limits, is turning with stem, lockable is connected, respectively there is a triangle frame trailing wheel both sides, and all adorn a steamboat at following acute angle place.