CN2666793Y

CN2666793Y - Portable bicycle

Info

Publication number: CN2666793Y
Application number: CN 200320123459
Authority: CN
Inventors: 毛方年
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-17
Filing date: 2003-12-17
Publication date: 2004-12-29
Anticipated expiration: 2013-12-17

Abstract

The utility model relates to an improvement traffic tool which is mainly characterized in that handle bar straight pipe upward insetting type hinged inserted bars of a bicycle are inserted into a handle bar seat pipe; the pipe wall of a handle bar seat pipe is opened with a long slant groove; as position pins of inserted bars slide along a long slant groove, a handle bar straight pipe moves up and down and rotates in a positive angle of 90 DEG and in a negative angle of 90 DEG, which folds and the unfolds a bicycle. A front beam of the bicycle and a seat sleeve pipe are both separated away from a middle axial sleeve pipe; the lower section of the seat sleeve pipe is drilled a hole and is hinged with an additional vertical beam on a back fork through an axis pin, and the lower end of the seat sleeve pipe is hinged with the right end of the front beam through a double fork universal joint; an additional sub beam is provided on the middle sleeve pipe, which is hinged with the right end section of the front beam through fork-shaped joints intersecting in a certain angle. When the utility model is folded, the front wheel and the back wheel can operate crossly and in an opposite direction until being overlapped in parallel together, which makes the bicycle has a relatively small volume and be easy to be laid up and be carried; furthermore, safety devices are provided on a handle bar and a vehicle frame, which guarantees the normal ride. The utility model has the advantages of easy operation, small volume after being folded, safety and reliability.

Description

Portable bicycle

Technical field

The utility model is a kind of improved vehicle.

Background technology

Existing portable bicycle, the folding or expansion of car load, to fold mechanism, the manual operations amount is big from handlebar, vehicle frame, vehicle seat fastener, and the operating time is also long, and volume after folding is bigger simultaneously, carries, shelves still inconvenience.

Summary of the invention

The purpose of this utility model is a kind of portable bicycle of design, can not only fold quickly and easily and launch, and volume after folding is little, helps riding, shelves and carries.

The purpose of this utility model is achieved like this: handlebar is passed through in the folding and expansion of bicycle car load, the two-part action of vehicle frame is finished, a kind of by handle, front fork, front-wheel, vehicle seat, saddle tube, the vehicle seat sleeve pipe, axis, the axis sleeve pipe, foot-operated crank throw, sprocket wheel, ratchet, chain, back vent, rear axle, trailing wheel, the portable bicycle that brake etc. are formed, it is characterized in that becoming with the standpipe assembly welding socket of handlebar by handlebar seat pipe, standpipe is installed in the preceding face with overbolt, have a long skewed slot of helix that from the front to the side, becomes 90 ° of corners on the tube wall of handlebar seat pipe, with a left side, right handle becomes the embedded hinged one section inserted link in lower end of the handlebar straight tube that the T font is welded into one, insert within the handlebar seat pipe simultaneously together with the pivotally attached inserted link lower end of handlebar straight tube, and can when realizing the handlebar up-and-down movement, the locating dowel pin of the long skewed slot slippage of helix do 90 ° positive and negative revolution simultaneously on the inserted link with being contained in, thereby realize the folding and expansion of handlebar, in addition, front-axle beam all separates with the axis sleeve pipe with the vehicle seat sleeve pipe, the left end of this front-axle beam and preceding face are by certain angle assembly welding, the flat ported sub with the same line of centers of front-axle beam and the right-hand member head is welded, simultaneously, one of welding and front-axle beam line of centers are crossed as the flat ported sub or the fork-shaped ported sub of certain angle corner in addition in the bottom of the right-hand member section of this front-axle beam; The hypomere boring of vehicle seat sleeve pipe, its lower end flat ported sub that also is welded, between the flat ported sub of the lower end of the flat ported sub of front-axle beam right-hand member head and vehicle seat sleeve pipe, couple together like this, with folding or launch as required with a double jaw universal-joint or universal ball joint; In addition, being welded one near the position of axis sleeve pipe on back vent is in conplane vertical beam with vehicle seat sleeve pipe, front-axle beam, and the be welded hole usefulness bearing pin of forked type ported sub and vehicle seat sleeve pipe hypomere of the top of this vertical beam is hinged; An auxiliary girder that joins with front-axle beam is welded on the upper left side of axis sleeve pipe, fork-shaped ported sub or flat ported sub that the left end head of this auxiliary girder is welded and also has the certain angle corner, with with the flat ported sub that the certain angle corner is arranged of front-axle beam right-hand member pars infrasegmentalis or fork-shaped ported sub with the corresponding connection of bearing pin, to realize when folding, front-wheel and trailing wheel in opposite directions crossing operation until parallel overlapping, has minimum volume, be convenient to shelve or carry, expansion back front and back wheel is in same plane and guarantees that the person of taking advantage of rides; This external handlebar and vertical beam position all are provided with safety hook, and be safe and reliable with what guarantee to ride.

Portable bicycle that the utility model is carried is rational in infrastructure, and is easy to operate, and volume after folding is little, is convenient to shelve and carry, and riding safety is reliable after launching.

Description of drawings

Fig. 1 is that the utility model is carried the portable bicycle master and looked scheme drawing

Fig. 2 is that the utility model is put forward the portable bicycle schematic top plan view

Fig. 3 is the main scheme drawing of looking in the folding back of portable bicycle that the utility model is carried

The specific embodiment

From Fig. 1, Fig. 2, among Fig. 3 as can be seen: a kind of by handle 8, handlebar straight tube 7, front fork 3, front axle 1, front-wheel 2, vehicle seat 24, saddle tube 12, vehicle seat sleeve pipe 13, axis sleeve pipe 26, foot-operated crank throw 30, sprocket wheel 18, ratchet 21, back vent 20, rear axle 22, trailing wheel 23, preceding face 31, the portable bicycle that brake (not drawing among the figure) etc. are formed, it is characterized in that handlebar seat pipe 5 becomes the socket of handlebar with standpipe 4 assembly weldings, before being inserted into, standpipe 4 also is installed on the front fork 3 in the face 31 with bolt 10, have a long skewed slot of helix that from the front to the side, becomes 90 ° of corners on the tube wall of handlebar seat pipe 5, make the forked element on wedged bottom plane with holes with the lower end section that the handlebar straight tube 7 of one is made in handle 8 one-tenth T font welderings in the left and right sides, upper end section of embedded installation is that spade terminal and both sides shoulder with holes also is the inserted link 6 of angular plane surface in this forked element, handlebar straight tube 7 is connected with bearing pin with inserted link 6 interlocking backs, insert in the handlebar seat pipe 5 with the spacing back in line of both angular plane surfaces, installing on the inserted link 6 can be along the locating dowel pin of long skewed slot slippage, like this, when handlebar straight tube 7 and inserted link 6 are done together, also do 90 ° positive and negative revolution in the time of following moving, elasticity self-lock rod 9 is installed on this external handlebar straight tube 7, when cycling, handlebar straight tube 7 is locked on the handlebar seat pipe 5 or on the locating dowel pin, guarantee to travel normally, when holding self-lock rod 9, the rider upwards carries when carrying handlebar straight tube 7, promptly opened the locking of handlebar straight tube 7 with handlebar seat pipe 5, with the lifting of setting about, the limit rising edge rotation together of handlebar straight tube 7 and inserted link 6, when handlebar straight tube 7 is pulled out handlebar seat pipe 5 to top dead point with the jaw connecting portion of inserted link 6, because locating dowel pin spacing in long skewed slot can not pull, and this moment, a left side, right handle 8 has rotated 90 °, be in the position parallel with front-wheel 2, press down handle 8 as long as take advantage of a situation with hand, just can realize the folding of handle 8 and handlebar straight tube 7, when the rider upwards pulls handlebar straight tube 7 directly with hand after, insert downwards in the handlebar seat pipe 5 up to bottom dead point together with inserted link 6, a left side, 90 ° of right handle 8 contrarotations and resetting, self-lock rod 9 pins handlebar seat pipes 5 at this moment, guarantees rider's cruising; In addition, front-axle beam 11 all separates with axis sleeve pipe 26 with vehicle seat sleeve pipe 13, the left end of this front-axle beam 11 and preceding face 31 are welded by certain angle, the flat ported sub with front-axle beam 11 same line of centerss and right-hand member is welded, be welded in the bottom of the right-hand member section of front-axle beam 11 one and be crossed as the flat ported sub or the fork-shaped ported sub 28 of certain angle corner with front-axle beam 11 line of centerss, hypomere boring at vehicle seat sleeve pipe 13, its lower end flat ported sub that also is welded, between the flat ported sub of the lower end of the flat ported sub of front-axle beam 11 right-hand members and vehicle seat sleeve pipe 13, couple together with a double jaw universal-joint or universal ball joint 25, can fold as required or launch, on this external back vent 20 near the position of bottom bracket axle 26, one and vehicle seat sleeve pipe 13 are welded, front-axle beam 11 is in conplane vertical beam 16, the top welding fork-shaped ported sub and the hole on vehicle seat sleeve pipe 13 hypomeres of this vertical beam 16 are hinged with bearing pin 14, an auxiliary girder 27 that joins with front-axle beam 11 usefulness angle bearing pins 29 is welded on the upper left side of axis sleeve pipe 26, fork-shaped ported sub or flat ported sub that the left end head of this auxiliary girder 27 is welded one and also has the certain angle corner, auxiliary girder 27 left end heads have the fork-shaped ported sub or the flat ported sub of certain angle corner and also use angle bearing pin 29 hinged with the flat ported sub that the certain angle corner is arranged or the fork-shaped ported sub 28 corresponding setting-ins of front-axle beam 11 right lower quadrants, in the time of just can realizing folding, front-wheel 2 and trailing wheel 23 crossing operation in opposite directions obtain minimum volume until parallel overlapping; Safety hook 15 is welded on the bearing pin of these external Saddle cover pipe 13 lower ends, hanger pin or open pocket for the punch head 17 is welded on vertical beam 16, safety hook 15 is locked on hanger pin or the pocket for the punch head 17, make cycle frame become a solid and reliable integral body and safety traffic, hold the handle of safety hook 15 as rider one, make it break away from hanger pin or pocket for the punch head 17, another hand is pressed vehicle seat 24 to the lower right, vehicle seat sleeve pipe 13 clockwise rotates around bearing pin 14, pulling double jaw universal-joint 25 promotes front-axle beam 11 and drives front fork 3, front-wheel 2, handle 8, handlebar straight tube 7, the handlebar seat is managed 5 grades and is rotated counterclockwise around angle axle 29 together, before,

rear wheel

2,23 in opposite directions crossing operation until parallel overlapping, the realization car load is folding to finish, when the rider pins safety hook 15 on the other hand, another holds the lifting that makes progress of vehicle seat 24 rear portions, vehicle seat sleeve pipe 13 rotates counterclockwise and spurs double jaw universal-joint 25 around bearing pin 14 and drives front-axle beam 11, front-wheel 2, front fork 3 grades clockwise rotate around angle axle 29, before making, trailing

wheel

2,23 oppositely stagger until being positioned at same plane, after expansion finishes, with safety hook 15 tight hook hook pin or pocket for the punch heads 17, can ride safely; In addition, the right-hand member section of front-axle beam 11 also can be made into the wedged bottom plane, the left part of flat ported sub and double jaw universal-joint 25 of being welded on the line of centers on the top of the upper right wedge angle on this wedged bottom plane is hinged with bearing pin, be welded in the bottom, left obtuse angle on this wedged bottom plane and be crossed as the fork-shaped ported sub 28 of certain angle corner with front-axle beam 11 line of centerss, and the left end Duan Ze of auxiliary girder 27 makes tiltedly upward plane, the bottom of the lower-left wedge angle on plane is welded and is crossed as the flat ported sub of certain angle corner with auxiliary girder 27 line of centerss on this is oblique, hinged behind fork-shaped ported sub 28 setting-ins of this flat ported sub and front-axle beam 11 with angle axle 29, after bicycle launches, the plane of tiltedly going up of the wedged bottom plane of front-axle beam 11 and auxiliary girder 27 tightly offsets, and forms a firm integral body and obtains safe and reliable travelling.

Claims

1, a kind of portable bicycle of being made up of handle (8), handlebar straight tube (7), front fork (3), front axle (1), front-wheel (2), vehicle seat (24), saddle tube (12), vehicle seat sleeve pipe (13), axis sleeve pipe (26), foot-operated crank throw (30), sprocket wheel (18), chain (19), ratchet (21), back vent (20), rear axle (22), trailing wheel (23), preceding face (31), brake etc. is characterized in that:

A, standpipe (4) are inserted in the preceding face (31) and are installed on the front fork (3) with bolt (10), with have a long skewed slot of helix that from the front to the side, becomes 90 ° of corners on the tube wall of the handlebar seat pipe (5) of standpipe (4) assembly welding, the lower end section that becomes the weldering of T font to make the handlebar straight tube (7) of one with left and right handle (8) is made the forked element on wedged bottom plane with holes, embeddedly in this forked element with bearing pin inserted link (6) is installed, assembling handlebar straight tube (7) and inserted link (6) in line is inserted in the handlebar seat pipe (5);

The upper end section of b, inserted link (6) is spade terminal with holes, and the shoulder of spade terminal both sides also is angular plane surface, and inserted link (6) is gone up the locating dowel pin that installation can be done slippage along long skewed slot;

C, handlebar straight tube (7) are gone up elasticity self-lock rod (9) are installed;

D, front-axle beam (11) and vehicle seat sleeve pipe (13) all separate with axis sleeve pipe (26), the be welded flat ported sub of a concentricity line of the right-hand member of front-axle beam (11), the bottom of the right-hand member section of front-axle beam (11) are welded one and are crossed as the flat ported sub (28) of certain angle corner with front-axle beam (11) line of centers;

The boring of the hypomere of e, vehicle seat sleeve pipe (13), its lower end flat ported sub that then is welded couples together with a double jaw universal-joint (25) between the flat ported sub of this flat ported sub and front-axle beam (11) right-hand member;

F, go up position near axis sleeve pipe (26) vertical beam (16) that is welded at back vent (20), this vertical beam (16) is in same plane with front axle (11), vehicle seat sleeve pipe (13), the top welding fork-shaped ported sub and the hole on vehicle seat sleeve pipe (13) hypomere of vertical beam (16) are hinged with bearing pin (14), and hanger pin (17) is welded on the vertical beam (16);

G, an auxiliary girder (27) that is connected with angle bearing pin (29) with front-axle beam (11) is welded on the upper left side of axis sleeve pipe (26), the left end head of this auxiliary girder (27) is welded one and has the fork-shaped ported sub of certain angle corner, and the flat ported sub (28) on this fork-shaped ported sub and front-axle beam (11) the right-hand member section is hinged with angle bearing pin (29);

H, safety hook (15) is welded on the bearing pin of vehicle seat sleeve pipe (13) lower end.

2, portable bicycle according to claim 1, the bottom that it is characterized in that the right-hand member section of front-axle beam (11) center with front-axle beam (11) that is welded is crossed as the fork-shaped ported sub (28) of certain angle corner.

3, portable bicycle according to claim 1, the left end head that it is characterized in that auxiliary girder (27) is welded one and has the flat ported sub of certain angle corner.

4, portable bicycle according to claim 1 is characterized in that offering on the vertical beam (16) pocket for the punch head (17).

5, portable bicycle according to claim 1, the right-hand member section that it is characterized in that front-axle beam (11) is made the wedged bottom plane, be welded the flat ported sub of same line of centers on the top of the upper right wedge angle on this wedged bottom plane with hinged with the left part of double jaw universal-joint (25), be welded in the bottom, left obtuse angle on this wedged bottom plane and front-axle beam (11) line of centers is crossed as the fork-shaped ported sub (28) of certain angle corner with hinged with auxiliary girder (27).

6, portable bicycle according to claim 1 is characterized in that the left end section of auxiliary girder (27) is made tiltedly upward plane, and the bottom of the lower-left wedge angle on plane is welded and is crossed as the flat ported sub of certain angle corner with auxiliary girder (27) line of centers on this is oblique.

7,, it is characterized in that connecting with universal ball joint (25) between the flat ported sub of lower end of the flat ported sub of front-axle beam (11) right-hand member and vehicle seat sleeve pipe (13) according to the described portable bicycle of claim 1.