CN2245574Y

CN2245574Y - Dismounting folding bicycle

Info

Publication number: CN2245574Y
Application number: CN 95203512
Authority: CN
Inventors: 郭伟彬
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-02-04
Filing date: 1995-02-04
Publication date: 1997-01-22
Anticipated expiration: 2005-02-04

Abstract

The utility model relates to a dismounting folding bicycle. A sleeve barrel at the front part of the bicycle is connected with a square tube (6), the upper side of the square tube is provided with a small hole, and the lower side is provided with a long hole. The lower end of the sleeve barrel is provided with a rotatable safety rod (8); the right side of a front wheel and the left side of a rear wheel are provided with a joining hook device; an inclined tube (21) at the rear part is connected with a cross bar (22) and an inclined rod (23) by a hinge; the upper end of the inclined tube is provided with a lever lock (26); a handlebar (7) is composed of three sections, and the three sections are connected by hinges; the inner ends of the outside two sections are respectively provided with a spring bolt (17), and the outer ends are respectively provided with a button. After the bicycle is folded, the size is small, the two wheels can roll on ground, and the bicycle can go up and down stairs very conveniently.

Description

The reassembling type folding bicycle

The utility model relates to a kind of Foldable bicycle

Ordinary bicycle seems very inconvenient because car body is oversize in the space-constrained occasion, and the high building resident family in city particularly is because ordinary bicycle stair activity (comprising elevator) is extremely inconvenient, so the keeping of bicycle has just become city dweller's a difficult problem.

Folding bicycle is had it long ago abroad.Two kinds of folding bicycles were introduced in telecast " 95 is global " lining, all were the method for folding that adopts the hinge doubling.This method can make bicycle shorten, but the bicycle after folding cannot roll on the ground, and this does not bring much convenience concerning high building resident family.The reason that this bicycle cannot roll is cannot address the problem behind the bicycle folding of hinge doubling: the one, and front and back wheel coaxial and parallel; The 2nd, handlebar, vehicle seat, stretcher three position concentrated relatively.

The purpose of this utility model provides a kind of improved folding bicycle.It can solve ordinary bicycle stair activity difficulty, problems such as packed and transported difficulty and theftproof performance difference.

The purpose of this utility model be achieved in that with the main body of bicycle make can dismounting front and back two parts.Anterior major part has: front-wheel, front vehicle fork, handlebar and be connected to the sleeve of the vertical rectangular tube of a joint, and the rectangular tube upside has an aperture, and downside has a slotted hole.The major part at rear portion has: trailing wheel, stretcher and driving device, the fixing three-legged structure of trailing wheel and driving device (being made of an inclined tube and two cars forks).The front side of inclined tube connects two bars with hinge, and two bars can rotate up and down around hinge separately.Top cross bar is equipped with vehicle seat, and leading portion is slightly upwards curved, and there is a tooth upper end.The leading portion of following brace is made hook solid.During use, top cross bar is injected anterior rectangular tube, the tooth that makes the cross bar front end passes from the aperture of rectangular tube upside, and following brace then advances from the slotted hole hook of rectangular tube downside.Gravity will make front and back two parts obtain firm being connected with the power system that bearing capacity is constituted.Forwardly a safety lever that can rotate around sleeve is adorned in the lower end of sleeve, be used to prevent coming off of rear portion brace.The safety lever change is enclosed within on the sleeve, and there is a tooth inboard of change, the lower end of sleeve dug one " " the shape groove, tooth can only move in groove, withstands with spring below the safety lever change, and when making safety lever point to the dead aft, its tooth can be locked in the vertical slot upper end, and depressing its tooth of back can be by 90 ° of translot turn-off.In the left side of the right side of front-wheel and trailing wheel one cover is housed and has contact with device, in the upper end of rear portion inclined tube one lever lock is housed, when folding, the front portion is suspended to the left side at rear portion by having contact with device, rectangular tube is set on the lever lock, allows the locking bar of lever lock lock out from the slotted hole of rectangular tube downside.Handlebar is made of three joints, connects with hinge, and outside two joint fold-downs are folded, and respectively there is a spring tongue its inner, and respectively there is a button outer end, fixes with spring tongue during use, fixes with button when folding.Also can adopt the handlebar of ordinary bicycle.Adorn a handle in the left side of rear portion inclined tube, be convenient to moving of bicycle.

The utility model can reduce the shared space of bicycle effectively.Owing to be that mode by dismounting realizes folding, make folding back two-wheeled not only parallel but also coaxial, and protrusion is more concentrated, so two-wheeled can roll on ground forward, than above-mentioned easier the moving of external folding bicycle.This reassembling type folding bicycle has also been introduced more firm lever lock, has improved the theftproof performance of bicycle.This device is owing to the moment of using bicycle itself connects, so use very safe.Each parts of this device all are easy to processing, and particularly junction screw of no use is realized the sturdy and durable of each parts easily.

Concrete structure of the present utility model is provided by following examples and accompanying drawing.

Fig. 1 is the block diagram of each major part of reassembling type folding bicycle that the utility model proposes.Arrow among the figure is indicated the installation site of this assembly.

This reassembling type folding bicycle is made up of anterior (1) and rear portion (2) two large divisions.

The major part of anterior (1) has: front-wheel (3), front vehicle fork (4), sleeve (5), rectangular tube (6), handlebar (7), safety lever (8) and have contact with (9).The upside of rectangular tube (6) has an aperture (10), and downside has a slotted hole (11), and the length of rectangular tube (6) approximates wheel thickness.Safety lever (8) is assemblied in the lower end of sleeve (5) with spring (12) and nut (13).The lower end of sleeve dug one "

" shape groove (14), translot part radian is 90 °.There is a tooth (32) safety lever change inboard, and it can only move in groove (14), and when safety lever (8) pointed to the dead aft, tooth (32) was locked in the vertical slot upper end, and after depressing, tooth (32) can be by 90 ° of translot turn-ofves.Two joint structures are identical about handlebar (7), there is a button (15) its outer end, and inner upside has dug a groove (16), and a spring tongue is adorned in the inside, spring tongue is made up of latch main body (17), spring (18) and handle (19), and handle (19) is passed by groove (16).Fixing during use with spring tongue (17), fixing when folding with button (15).Also can adopt the handlebar of ordinary bicycle, though folding effect is slightly poor, but simplified structure.

The major part at rear portion (2) has: trailing wheel (20), inclined tube (21), cross bar (22), brace (23), vehicle seat (24), car pin (25), lever lock (26), handle (27) and take ring (28).Cross bar (22) front end has a tooth (31).After normotopia was installed, brace (23) should be perpendicular to inclined tube (21).The action radius that cross bar (22) and brace (23) make progress should be able to satisfy the requirement that normotopia is installed.The key hole of lever lock (26) is on the car body right side.The pillar of vehicle seat (24) is made up of sleeve that digs several holes (29) and the inner prop (30) that digs a hole, can regulate the vehicle seat height as required.Also can adopt the vehicle seat of standing height.

Fig. 2 is the site plan of each major part of the folding front and back of this reassembling type folding bicycle.

When installing and using, cross bar (22) is injected in the rectangular tube (6), the tooth that makes cross bar (22) front end passes from the aperture of rectangular tube upside, and brace (23) advances from the slotted hole hook of rectangular tube (6) downside.Again safety lever (8) is gone to the back locking.Handlebar (7) holds up flat back to lock with spring tongue (17).

When folding, earlier safety lever (8) is depressed 90 ° of turn-ofves, install to the left side of rear portion (2) after anterior (1) is split out, the wheel shaft place is fixed with having contact with device, and rectangular tube (6) packs into the lever lock (26) of inclined tube (21) upper end and locates locking.

During making, in the weight of guaranteeing to alleviate under the prerequisite of intensity bicycle as far as possible.Cross bar (22) and brace (23) can be pressed into " worker " word steel or adopt hollow tubular.The opening part intensity of rectangular tube (6) and inclined tube (21) is relatively poor, can suitably thicken in its edge.The front end of the spring tongue (17) of rectangular tube (6), handlebar and cross bar (22) and brace (23) gets rusty easily, available following method overcomes: the spring tongue (17) of rectangular tube (6) and handlebar is preferably selected high-intensity stainless steel material for use, the front end of cross bar (22) and brace (23) then can be pressed into " worker " word steel earlier, to reduce its contact surface, tumble in one deck stainless steel material at its contact surface again.The design of vehicle seat and handlebar should make rider's body erect, to alleviate the pressure of human body to handlebar.

The utility model is fit to the bicycle of multiple size, considers from practical and light two aspects, preferably selects 22 cun and 24 cun two kinds of sizes for use.

Claims

1, a kind of reassembling type folding bicycle, it is characterized in that anterior sleeve (5) upward connects a joint vertical rectangular tube (6), rectangular tube (6) upside has an aperture (10), downside has a slotted hole (11), the front side of rear portion inclined tube (21) connects a cross bar (22) and a brace (23) with hinge, the leading portion of cross bar (22) is slightly upwards curved, there is a tooth (31) upper end, and the front end of brace (23) is a hook solid, and vehicle seat is contained on the cross bar (22), there is a safety lever (8) sleeve (5) lower end, be used to prevent coming off of brace (23), there is a handle (27) in the left side of inclined tube (21), and there is a lever lock (26) upper end, the front-wheel right side has has contact with (9), and ring (28) is taken in the trailing wheel left side.

2, reassembling type folding bicycle according to claim 1 is characterized in that handlebar (7) is made up of three joints, connects with hinge, and outside two joint fold-downs are folded, and respectively there is a spring tongue (17) its inner, and respectively there is a button (15) outer end.

3, reassembling type folding bicycle according to claim 1, the pillar that it is characterized in that vehicle seat (24) is made up of sleeve that is drilled with several holes (29) and the inner prop (30) that is drilled with a hole.

4, reassembling type folding bicycle according to claim 1 is characterized in that safety lever (8) is enclosed within on the sleeve (5) with change, and there is a tooth (32) inboard of change, the lower end of sleeve (5) dug one "

" shape groove (14), tooth (32) can only move in groove (14), withstands with spring (12) below the safety lever change, makes tooth (32) can be locked in the vertical slot upper end, and after depressing, tooth (32) can be by 90 ° of translot turn-ofves.