CN2157905Y

CN2157905Y - Anti-falling off additional wheels for bicycle

Info

Publication number: CN2157905Y
Application number: CN 93202913
Authority: CN
Inventors: 刘志达
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-20
Filing date: 1993-02-20
Publication date: 1994-03-02
Anticipated expiration: 2003-02-20

Abstract

The utility model relates to anti-falling off additional wheels for a bicycle, which is characterized in that the additional wheels are installed on both sides of a rear wheel of the bicycle, an expansion pipe is sheathed with a sleeve pipe, a shock-proof buffer mechanism is installed in the sleeve pipe, and the shock-proof buffer mechanism is provided with a touchdownable rubber wheel. The utility model has the advantages that when people ride the bicycle on an icy road after snow, the possibility of sliding is reduced, so personal safety can be ensured, and traffic accidents are prevented; a bicycle greener can learn to ride independently; the utility model can be used as a supporting ladder, and has the advantage of simple and convenient installation; when not used, the additional wheels can be folded up, and have the advantage of flexible and simple operation.

Description

Anti-falling off additional wheels for bicycle

The utility model relates to a kind of bicycle and prevents falling down additional wheel.

In known technology, when people have just practised by bike,, often fall down, so need the exercise of stranger's walker during practice owing to grasp the balance of bad bicycle; When learning by bike, meet in rainy day in summer or winter that particularly to avenge the back snowy day icy on road, the rider very easily falls down and causes traffic accident and human casualty accident, therefore has the people at the rear axle two ends of bicycle the pivot shaft that one one end is equipped with steamboat to be installed respectively.The shortcoming of this structure is that the pivot shaft center of gravity is low, rider's center of gravity height, pivot shaft easy deformation when steamboat lands, so poor stability.

The purpose of this utility model overcomes the known technology weak point exactly and provides a kind of bicycle to prevent falling down additional wheel.

The purpose of this utility model is by realizing with measure:

Be installed in the attaching parts on the shelf behind the bicycle, articulated telescopic pipe on it, be equipped with in symmetrical two holes of its inwall with the tight outer alignment pin of stretching wall of spring bullet, this end of flexible tube wall is sleeved in the sleeve pipe, just in time pack into its top of alignment pin and exposing outside the casing wall of the last knock hole of casing wall, also be shaped on two symmetrical following knock holees on the casing wall, tightening up the block of centre hole in the sleeve pipe of following knock hole opposite side, tighten up the spring of dressing in sleeve pipe with overbolt on the block, a part is exposed at outer support tube of sleeve pipe and the wheel carrier that is welded on the support tube, rubber wheel with little pedestal dress is housed on the wheel carrier, be welded with body cradle on the sleeve outer wall, on it articulated other end be hinged on be fixed on the bicycle rear axle and the back vent crossbeam on the support grillage at two places.

Telescopic pipe and sleeve pipe can be circular or square metal tube such as steel pipe, alloy pipe etc.

Advantage of the present utility model be rainy day in summer or winter the snow sky particularly behind the sleet ice-patch surface ride, reduced the possibility that is slipped, ensured personal safety and prevented traffic accident; Can be when just practicing bicycle rider study, oneself is independently practised; Can be terraced as propping up of bicycle, reliable and stable when parking; Need not change original bicycle, install simple and convenient; When anti-wanting not, can will add the wheel telescopic folding, flexible operation is easy.

Description of drawings:

Fig. 1 is the embodiment general assembly scheme drawing provided by the utility model that is contained on the bicycle;

Fig. 2 is that the A of Fig. 1 is to (folding after) scheme drawing.

Fig. 3 is the telescopic pipe parts assembling scheme drawing that sets a bearing pin.

In conjunction with the accompanying drawings embodiment is described in further detail:

Be installed in the attaching parts 1 on the shelf behind the bicycle, the steel telescopic pipe 2 of articulated square-section on it, near being equipped with in the two symmetrical holes of the inwall of another termination of telescopic pipe with the tight outer alignment pin 4 of head stretching wall of spring 3 bullets, it is in the square steel sleeve pipe 5 that this end of telescopic pipe is sleeved on the cross section, last knock hole 19 on the casing wall alignment pin on the telescopic pipe of just in time packing into, also expose outside the wall at its top, also is shaped on two symmetrical following knock holees 10 on the casing wall.Tightening up the block 7 of centre hole in the sleeve pipe of following knock hole opposite side with screw 6, tighten up the spring 9 of dressing in sleeve pipe with overbolt 8 on the block, a part is exposed at the support tube 11 and the wheel carrier 12 that is welded on the support tube outside the sleeve pipe termination, rubber wheel 14 with 13 dresses of little axle is housed on the wheel carrier, be welded with body cradle 15 on the outer wall of sleeve pipe, on it articulated other end be hinged on be fixed by bolts on the bicycle rear axle and bicycle rack back vent crossbeam on the L shaped connecting panel 16 at two places and 17 leg-of-mutton support grillage 18.

Installation of the present utility model and using method are in bicycle rear wheel both sides one cover to be installed respectively.Begining to learn cycling and during in the sleet sky, telescopic pipe being pulled out to alignment pin inserting in the last knock hole of sleeve pipe, after supporting sleeve pipe, can use by the support grillage; Do not using additional wheel, additional wheel uses as the car ladder, the additional wheel of one side can be shunk, its method is to refer to forefinger alignment pin by advancing in the casing wall with big mother, in the telescopic pipe indentation sleeve pipe, the alignment pin insertion is knock hole down, shrinks and supports grillage, makes additional wheel lean against the bicycle rack side and gets final product.

Claims

1, a kind of bicycle prevents falling down additional wheel, it is made up of pivot shaft and the steamboat that is installed on the axle, it is characterized in that being installed in the attaching parts on the shelf behind the bicycle, articulated telescopic pipe on it, be equipped with in symmetrical two holes of its inwall with the tight outer alignment pin of stretching wall of spring bullet, this end of telescopic pipe is sleeved in the sleeve pipe, just in time pack into its top of alignment pin and exposing outside the casing wall of last knock hole on the casing wall, also be shaped on two symmetrical following knock holees on the casing wall, tightening up the block of centre hole in the sleeve pipe of following knock hole opposite side, tighten up the spring of dressing in sleeve pipe with overbolt on the block, a part is exposed at outer support tube of sleeve pipe and the wheel carrier that is welded on the support tube, rubber wheel with little pedestal dress is housed on the wheel carrier, be welded with body cradle on the sleeve outer wall, on it articulated other end be hinged on be fixed on the bicycle rear axle and the back vent crossbeam on the support grillage at two places.

2, additional wheel according to claim 1 is characterized in that telescopic pipe and sleeve pipe can be circular or square metal tube.