CN2774915Y - Folding bicycle goods rack for two purpose vehicle - Google Patents

Abstract

The utility model relates to a folding dual-purpose vehicle for being used as a bicycle and for supporting goods. A vehicle seat and vehicle handlebars are installed on a vehicle frame, and a front and a back wheels are separately installed on a front and a back forks. A middle shaft chain disk is connected with a back wheel driving mechanism through a chain, and the vehicle frame is in a frame structure; a goods rack is pivoted on a lower cross beam of the vehicle frame, and a front fork upright rod is installed in a front upright tube of the vehicle frame and can also rotate in the front upright tube. The vehicle handlebars form a telescopic type, and a vehicle seat upright tube is installed in a back upright tube of the vehicle frame; the lower part of the vehicle seat is provided with vehicle handlebar fixing members, and the back wheel driving mechanism is composed of a large and a small fly wheels separately positioned on the front and the back sides of a back wheel steering mechanism and a back wheel fly wheel. The middle shaft chain disk is connected with the small fly wheel through the chain, and the large fly wheel is connected with the back wheel fly wheel through the chain. The utility model has dual-purpose of being used as a bicycle and a goods supporting vehicle and has the advantages of simple and artful structural combination, convenient fold, small size, portability and convenient operation. The utility model is especially suitable for traveling personnel, outgoing personnel and working personnel and for the haulage of light objects.

Description

The folding goods motor moped that holds in the palm voluntarily

Technical field

The utility model relates to a kind of bicycle, especially relates to a kind of folding goods motor moped that hold in the palm voluntarily that can use as bicycle and holder lorry.

Background technology

At present, the relevant patent of folding bicycle and the combination of various holder lorry seldom, reason is can not be effectively succinct the combining of both different framed structures, and does not design shared technical scheme of taking turns, and chain folding.Most of design is main subsidiary have loading function, design plan complexity, poor practicability with the folding bicycle.

Summary of the invention

The purpose of this utility model provides a kind of can the use as folding bicycle, and can also be as the folding goods motor moped that holds in the palm voluntarily of holder lorry use after simple the expansion.

For achieving the above object, the technical solution adopted in the utility model is: a kind of folding goods motor moped that holds in the palm voluntarily, vehicle seat and handlebar are housed on the vehicle frame, front and back wheel is contained on the front and rear fork respectively, the axis chain drum is connected with back-wheel drive mechanism by chain, vehicle frame is a framed structure, pivot is equipped with shelf on the cross sill of vehicle frame, the front fork vertical rod is contained in the preceding standpipe of vehicle frame and can rotates therein, handlebar is telescopic, the vehicle seat standpipe is contained in the vehicle frame rear profile tube, below vehicle seat, be provided with the handlebar connecting element, back-wheel drive mechanism is by the big flywheel that lays respectively at both sides, trailing wheel side steering front and back, small flywheel and back flying wheel are formed, and the axis chain drum is connected with small flywheel by chain, and big flywheel is connected with the back flying wheel by chain.

Described trailing wheel side steering comprises a sleeve, this upper cartridge is inserted in vehicle frame rear profile tube lower end, lower cartridge is inserted in back vent vertical rod upper end, the small flywheel rotating shaft is contained in by in the axle sleeve of bearing fixing on sleeve, big flywheel rotating shaft is contained in the axle sleeve that fixes with vehicle frame rear profile tube upper end, at small flywheel rotating shaft center one through hole is arranged, and is installed with connecting pin in this through hole, the other end of connecting pin is inserted in the pin-and-hole of big flywheel rotating shaft, is processed with one 90 degree and rotates chute on the face of cylinder of sleeve.

One spring or latch are housed in the through hole of small flywheel rotating shaft.

The utility model is the common frame of main framework as folding bicycle and holder lorry, the shelf of holder lorry can be folded in the main frame, two wheels can freely turn to forms shared the wheel, the front-wheel of bicycle can use for the single wheel that holds in the palm lorry by the adjusting break-in of handlebar, after trailing wheel rotates by the trailing wheel side steering, after making itself and bicycle directional in alignment, simultaneously the connecting pin between big flywheel rotating shaft and the small flywheel rotating shaft is inserted, make propulsion source pass to big flywheel by the connection of connecting pin, drive trailing wheel then and advance, become folding bicycle.As pulling holder during lorry, the shelf that are folded in the main frame are opened, by the trailing wheel side steering rear wheel are revolved then and turn 90 degrees, again bicycle handle bar pull out with vehicle seat under connecting element combine, as the wushu structure that pulls the holder lorry, promptly form the holder lorry.The utility model textural association is succinctly ingenious, folding convenient, and volume is little, can carry, and is easy to use, is particularly suitable for parading, goes out, the manual labour personnel use, and the haul that also is fit to light object is used.

Description of drawings

Fig. 1 is the scheme drawing of the utility model as folding bicycle;

Fig. 2 is that the utility model launches the scheme drawing of back as the holder lorry;

Fig. 3 is the schematic perspective view of the utility model trailing wheel side steering;

Fig. 4 is the vertical part surface constructional drawing of the utility model trailing wheel side steering.

The specific embodiment

As shown in Figure 1, 2, main frame 22 is as the vehicle frame of folding bicycle, the standpipe 28 of vehicle seat 1 is installed in the rear profile tube 3 of main frame 22, and by fixing pin 2 liftables, below vehicle seat, be provided with handlebar connecting element 29, connecting element can be a pipe, also can be other fixedly connecting elements of handlebar end.Handlebar 9 is installed in the preceding standpipe 23 of main frame 22, and by pin 12 liftables, handlebar is telescopic.By hinge 25 pivots shelf 4 are housed on the cross sill 24 of main frame 22, shelf 4 are folded in the main frame 22 at ordinary times, when dragging lorry to use, shelf are put down get final product.The vertical rod of front fork 26 is contained in the preceding standpipe 23 of main frame 22 and can rotates therein, stem and vertical tube of front fork are one, or be fixed together by attaching parts, front-wheel 10 rotated thereupon when handlebar rotated, when the handlebar direction was consistent with main frame 22 directions, front-wheel 10 was perpendicular with the main frame direction.

Back-wheel drive mechanism is made up of the big flywheel 6 that lays respectively at both sides, trailing wheel side steering 5 front and back, small flywheel 15 and back flying wheel 27, and axis chain drum 11 is connected with small flywheel 15 by chain 13, and big flywheel 6 is connected with back flying wheel 27 by chain 7.Shown in Fig. 3,4, trailing wheel side steering 5 comprises a sleeve 14, this upper cartridge is inserted in main frame rear profile tube 3 lower ends, sleeve 14 bottoms are inserted in vertical rod 16 upper ends of back vent 30, small flywheel rotating shaft 18 is contained in by bearing 32 is fixed in the axle sleeve 31 on the sleeve 14, and big flywheel rotating shaft 20 is contained in the axle sleeve 33 that vertical rod 16 upper ends with back vent 30 fix by bearing 35.At small flywheel rotating shaft 18 centers one through hole is arranged, in this through hole, be installed with connecting pin 19, for connecting pin 19 can be inserted under normal condition in the through hole of big flywheel axle sleeve 33 all the time, a spring 21 is housed in the through hole of small flywheel rotating shaft 18, the end of spring 21 is fixed on the small flywheel 15.The also available latch of spring 21 replaces.The other end of connecting pin 19 is inserted in the pin-and-hole of big flywheel rotating shaft 20, the shape of the pin-and-hole of the through hole at small flywheel rotating shaft 18 centers and big flywheel is all suitable with the shape of connecting pin 19, when small flywheel 15 is subjected to chain 13 to drive rotation and drives the small flywheel rotating shaft to rotate, by connecting pin rotation is passed to big flywheel rotating shaft 20, big flywheel rotating shaft 20 drives back flying wheel 27 by chain 7 again and rotates, thereby drives trailing wheel 8 rotations.On the face of cylinder of sleeve 14, be processed with one and rotate chute 17, because axle sleeve 33 fixes with back vent standpipe upper end, therefore when connecting pin 19 when the pin-and-hole of big flywheel rotating shaft is extracted, rotate trailing wheel 8 and can make axle sleeve 33 in chute 17, rotate 90 degree together, make trailing wheel 8 perpendicular with the direction of main frame 22 in company with the back vent standpipe.

When the utility model used as bicycle, pedal 34 passed to big flywheel 6 as propulsion source by axis chain drum 11 and chain 13, small flywheel 15, drove trailing wheel 8 by chain 7 again and advanced.As shown in Figure 2, shelf 4 are opened, handlebar 9 revolve turn 90 degrees after, the frame that pulls that makes one end and vehicle seat connect to form the holder lorry is used.Extract pin 19, trailing wheel 8 by rear-axle steering mechanism 5 drive big flywheel 6 revolve turn 90 degrees after, the opposite side wheel of forming the holder lorry gets final product.

Claims (3)

1, a kind of folding goods motor moped that holds in the palm voluntarily, vehicle seat and handlebar are housed on the vehicle frame, front and back wheel is contained on the front and rear fork respectively, the axis chain drum is connected with back-wheel drive mechanism by chain, it is characterized in that, vehicle frame is a framed structure, pivot is equipped with shelf on the cross sill of vehicle frame, the front fork vertical rod is contained in the preceding standpipe of vehicle frame and can rotates therein, and handlebar is telescopic, and the vehicle seat standpipe is contained in the vehicle frame rear profile tube, below vehicle seat, be provided with the handlebar connecting element, back-wheel drive mechanism is by the big flywheel that lays respectively at both sides, trailing wheel side steering front and back, small flywheel and back flying wheel are formed, and the axis chain drum is connected with small flywheel by chain, and big flywheel is connected with the back flying wheel by chain.

2, motor moped as claimed in claim 1, it is characterized in that, the trailing wheel side steering comprises a sleeve, this upper cartridge is inserted in vehicle frame rear profile tube lower end, lower cartridge is inserted in back vent vertical rod upper end, the small flywheel rotating shaft is contained in by in the axle sleeve of bearing fixing on sleeve, big flywheel rotating shaft is contained in the axle sleeve that fixes with vehicle frame rear profile tube upper end, at small flywheel rotating shaft center one through hole is arranged, in this through hole, be installed with connecting pin, the other end of connecting pin is inserted in the pin-and-hole of big flywheel rotating shaft, is processed with one 90 degree and rotates chute on the face of cylinder of sleeve.

3, motor moped as claimed in claim 2 is characterized in that, a spring or latch are housed in the through hole of small flywheel rotating shaft.

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