CN2233882Y

CN2233882Y - Foldable bicycle

Info

Publication number: CN2233882Y
Application number: CN 95222665
Authority: CN
Inventors: 戴裕聪
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-09
Filing date: 1995-10-09
Publication date: 1996-08-28
Anticipated expiration: 2005-10-09

Abstract

The utility model discloses a folding bicycle. The upper end of a front fork is provided with a handle disk which is connected with a handle bar by a U-shaped drift bolt and a nut; the handle disk is also provided with the installation hole of the U-shaped drift bolt when the handle bar is longitudinally installed; the demountable connected front frame of a bicycle beam is inserted in a back beam; the outer circle of the front frame is provided with a spring sleeve, and the front frame is connected with the back beam by a pin pipe making use of threads; pipe columns are respectively arranged in the front beam and the back beam which are tied together by the two pipe columns; the utility model has the advantages of simple structure and easy fabrication, and can be put into production for the existing bicycle manufacturers without adding any equipment. The utility model can be moved in rooms after folded, has small land occupation, and keeps the bicycle safe.

Description

A kind of folding bicycle

The utility model relates to a kind of folding bicycle.

Along with the wildness of theft bicycle, various new mode locks extensively are used, but rarely have through firmly using the auto theft person of long arm clamp.More have thief row " not picking lock " also to steal car, will lock well bicycle directly throw away to get on the car and pull away.This just points out us, depends the method for improving lock alone, far can not guarantee not lose car, but if ride complete back car " is received (Tibetan) ", just very can guarantee the safety of car.And remove the crowded obstruction of bicycle on preceding passageway, building simultaneously from, and by wind, drench with rain.Long the causing of vehicle body is difficult to carrying and collection but because of having now voluntarily.

Though the design of folded bicycle was arranged in the past, cherish that it is each has something to recommend him, not widespread use eventually.If any complex structure, cause and make to be difficult for; It is poor that the intensity that has is disliked; The speed that has falls sharply, or the like.So as the national vehicle, like undesirable.

The purpose of this utility model be for overcome above-mentioned weak point design a kind of bicycle beam be divided into two sections and adopt removably connect, folding bicycles that handlebar can be placed in length and breadth, fold up after riding, be put in indoorly, guarantee safety.

Fork upper end was provided with dish before the utility model was achieved in that, dish was connected the mounting hole of U type drift bolt when also being provided with handlebar on coiling and vertically installing through U type drift bolt and nut with handlebar; The front-axle beam of the car beam that removably connects inserts in the back rest, mounting spring cover and be connected with the back rest by tip Guan Jingqi screw thread on the front-axle beam cylindrical; One end of tip pipe is shaped on and back rest bonded assembly screw thread, and the other end is provided with the taper hole of holddown spring cover, respectively is provided with tubing string in the front-axle beam and the back rest and by wire line thimble two tubing strings is nested together.

The car beam that removably connects also can insert in the back rest in the front-axle beam, and mounting spring is overlapped and is connected with front-axle beam by tip Guan Jingqi screw thread on back rest cylindrical.

The utility model advantage is to guarantee antitheft, and dependable performance is made easily.

As described above, ride and finish the back car " Tibetan ", this is best theft preventing method.Although the thief of " modernization " has the long-armed pliers and the advanced vehicle, also have no way out.The utility model is folding simple, easy to use, and folding back bodywork length has reduced half approximately, has greatly dwindled the occupation of land space, and extremely sharp carrying gets up to become a reality with car " Tibetan " thereby make, so can guarantee the safety of car.

The utility model will not slow down; And car body strength is also absolute reliable.

Guaranteeing under the above-mentioned prerequisite, the utility model manufacturing simple in structure, easy, and do not disturb the existing manufacturing line of manufacturer substantially.

The utility model is of many uses, not only can be used for man's bicycle, also can be used for woman's bicycle; Not only can be used for " cable brake " car, also can be used for " rod lock " car; Not only can be used for eagle car, directly car, also can be used for flat car.

As above-mentioned, design of the present utility model is mainly antitheft consideration, so painstakingly pursue the small size after folding.Extremely sharp production and use.

Description of drawings:

Fig. 1 is the utility model

Fig. 2 is a car beam folded part cutaway view

Fig. 3 is a handlebar part exploded drawings

Below in conjunction with description of drawings the utility model embodiment, the utility model is compared with Regular Bicycle, has removed preceding cant beam so that folding, and crossbeam adopts twin-spar construction to strengthen the intensity of vehicle body;

A, U type drift bolt (I) is passed handlebar (2) be fixed on and dish (3) gone up (crosswise fixed when riding, vertically fixing when folding), fastening with fly nut (4).

B, when riding the front-axle beam (5) in the car beam (11) is inserted in the back rest (7) by tip pipe (6), and tighten tip pipe (6) the two locking.

C, when folding, unscrew tip pipe (6), directly fold back after preceding pipe (5) is extracted and lock with locking hook (12).

D, when riding preceding pipe (5) is inserted in the back pipe (7) by tip pipe (6), and tip pipe (6) is tightened, pipe inner spring cover (8) is promptly embraced preceding pipe (5) to be made fixing.

E, when folding, tip pipe (6) is unclamped, spring housing (8) loosens, and preceding pipe (5) can be extracted out and fold back.Rely on this moment the wire line thimble (9) that is placed on the tubing string (10) to connect between forward and backward pipe.Wire line thimble (9) becomes soft hinge, the two is connected solid.

Claims

1, a kind of folding bicycle that comprises wheel, handlebar, vehicle frame, pedal and chain drive, the fork upper end is provided with dish before it is characterized in that, dish is connected the mounting hole of U type drift bolt when also being provided with handlebar on coiling and vertically installing through U type drift bolt and nut with handlebar; The front-axle beam of the car beam that removably connects inserts in the back rest, shock mount cover and be connected with the back rest by tip Guan Jingqi screw thread on the front-axle beam cylindrical; One end of tip pipe is shaped on and back rest bonded assembly screw thread, and the other end is provided with the taper hole of holddown spring cover; Respectively be provided with tubing string in the front-axle beam and the back rest and two tubing strings connected together by wire line thimble.

2, by the described folding bicycle of claim 1, it is characterized in that the car beam that removably connects also can insert in the back rest in the front-axle beam, shock mount overlaps and is connected with front-axle beam by tip Guan Jingqi screw thread on back rest cylindrical.