CN204056131U

CN204056131U - Rotatable folding vehicle frame

Info

Publication number: CN204056131U
Application number: CN201420243856.7U
Authority: CN
Inventors: 何响明
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-05-13
Filing date: 2014-05-13
Publication date: 2014-12-31
Anticipated expiration: 2024-05-13

Abstract

The utility model relates to a kind of bicycle, object is to provide one, and that front vehicle frame and Rear frame can be made to rotate is more smooth and easy, coordinate more accurate, rotatable folding vehicle frame easy to process, comprise Rear frame, front vehicle frame and seat pipe, the front side of Rear frame is provided with the first rotating shaft, the downside of front vehicle frame is provided with the second rotating shaft, first rotating shaft and the second rotating shaft are coaxial and can relatively rotate, the middle part of Rear frame is provided with in first manages, the rear side of front vehicle frame is provided with in second manages, seat pipe can to insert in first in pipe and second in pipe, in first, in pipe and second, the outside of pipe is respectively equipped with a pipe locking device, axle sleeve is provided with in the rotating shaft junction of described first rotating shaft and described second rotating shaft, increasing the effect of axle sleeve is that front vehicle frame and Rear frame are rotated is more smooth and easy, coordinate more accurate.

Description

Rotatable folding vehicle frame

Technical field

The utility model relates to a kind of bicycle, particularly relates to a kind of rotatable folding vehicle frame.

Background technology

Bicycle has become the indispensable vehicle in people's daily life, generally, bicycle comprises vehicle frame, wheel, foot-operated, handlebar and vehicle seat, wherein vehicle frame is the skeleton of whole bicycle, be the basic structure forming bicycle, other parts are all directly or be indirectly arranged on vehicle frame.So the stuctures and properties of vehicle frame is the key factor determining bicycle quality.Existing bicycle, although can realize folding, is doubling mostly, between crossbeam and rear supporting tube, arranges rotating shaft.Same, what present vehicle frame generally adopted is common carbon steel copper pipe, then through welding, combine, but the vehicle frame quality weight that this material is made, volume is large, is not easy to transport, storage.

Applicant discloses a kind of rotatable folding vehicle frame in the patent of the patent No. 201300259688.6, but in real work, and it is not very smooth and easy for finding that this patent also exists that front vehicle frame and Rear frame rotate, and processing is the technical matters such as inconvenient also.

Utility model content

For solving the problems of the technologies described above, the purpose of this utility model is to provide one, and that front vehicle frame and Rear frame can be made to rotate is more smooth and easy, coordinates rotatable folding vehicle frame more accurate, easy to process.

Rotatable folding vehicle frame of the present utility model, comprise Rear frame, front vehicle frame and seat pipe, the front side of described Rear frame is provided with the first rotating shaft, the downside of described front vehicle frame is provided with the second rotating shaft, first rotating shaft and the second rotating shaft are coaxial and can relatively rotate, the middle part of described Rear frame is provided with in first manages, the rear side of front vehicle frame is provided with in second manages, described seat pipe can to insert in described first in pipe and second in pipe, in described first, in pipe and second, the outside of pipe is respectively equipped with a pipe locking device, when locking bed pipe locking device, front vehicle frame and Rear frame are connected as a whole vehicle frame, when unclamping pipe locking device, extract in pipe in seat Guan Kecong two, now front vehicle frame and Rear frame under the rotation of the first rotating shaft and the second rotating shaft by vehicle frame rotary folding, axle sleeve is provided with in the rotating shaft junction of described first rotating shaft and described second rotating shaft.

By such scheme, rotatable folding vehicle frame of the present utility model at least has the following advantages: the utility model is when locking two seat pipe locking devices, front/rear frame is connected as a whole vehicle frame, when unclamping pipe locking device, seat pipe can be pulled out middle pipe, time front vehicle frame and Rear frame under the rotation of the first rotating shaft and the second rotating shaft by vehicle frame rotary folding, reduce car body take volume, the object of conveniently placing and carrying so reach.

Axle sleeve is provided with in the rotating shaft junction of described first rotating shaft and described second rotating shaft, increasing the effect of axle sleeve is that front vehicle frame and Rear frame are rotated is more smooth and easy, coordinate more accurate, because after increase axle sleeve, the contact surface of the first rotating shaft and the second rotating shaft has lacked, and only passes through axle sleeve indirect contact at axle sleeve place, and when rotating like this, friction also tails off, and working accuracy also only needs to need fine limit work in the position contacted with axle sleeve, makes easy to process.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model rotatable folding vehicle frame;

Fig. 2 is the partial enlarged drawing at the A place of Fig. 1;

Fig. 3 is vehicle frame rotary folding view.

Detailed description of the invention

Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.

See Fig. 1, shown in Fig. 2 and Fig. 3, a kind of rotatable folding vehicle frame, comprise Rear frame 1, front vehicle frame 4 and seat pipe 2, the front side of Rear frame 1 is provided with the first rotating shaft 11, the downside of front vehicle frame 4 is provided with the second rotating shaft 41, first rotating shaft 11 and the second rotating shaft 41 are coaxial and can relatively rotate, axle sleeve 5 is provided with in the rotating shaft junction of the first rotating shaft 11 and the second rotating shaft 41, the effect increasing axle sleeve 5 makes front vehicle frame 4 and Rear frame 1 rotate more smooth and easy, coordinate more accurate, because after increasing axle sleeve 5, the contact surface of the first rotating shaft 11 and the second rotating shaft 41 has lacked, only pass through axle sleeve indirect contact at axle sleeve place, during such rotation, friction also tails off, and working accuracy also only needs to need fine limit work in the position contacted with axle sleeve, make easy to process.

The middle part of Rear frame 1 is provided with pipe 12 in first, the rear side of front vehicle frame 4 is provided with pipe 42 in second, seat pipe 2 can to insert in described first in pipe 12 and second in pipe 42, in first, in pipe 12 and second, the outside of pipe 42 is respectively equipped with a pipe locking device 3, when locking bed pipe locking device 3, front vehicle frame 4 and Rear frame 1 are connected as a whole vehicle frame, when unclamping a pipe locking device 3, seat pipe 2 is extracted in pipe from two, simultaneously, front vehicle frame 4 and Rear frame 1 are rotated around the first rotating shaft 11 and the second rotating shaft 41 respectively, by vehicle frame rotary folding, so just reach reduction car body and take volume, conveniently place and carry to obtain object.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.

Claims

1. a rotatable folding vehicle frame, comprise Rear frame, front vehicle frame and seat pipe, the front side of described Rear frame is provided with the first rotating shaft, the downside of described front vehicle frame is provided with the second rotating shaft, first rotating shaft and the second rotating shaft are coaxial and can relatively rotate, the middle part of described Rear frame is provided with in first manages, the rear side of front vehicle frame is provided with in second manages, described seat pipe can to insert in described first in pipe and second in pipe, in described first, in pipe and second, the outside of pipe is respectively equipped with a pipe locking device, when locking bed pipe locking device, front vehicle frame and Rear frame are connected as a whole vehicle frame, when unclamping pipe locking device, extract in pipe in seat Guan Kecong two, now front vehicle frame and Rear frame under the rotation of the first rotating shaft and the second rotating shaft by vehicle frame rotary folding, it is characterized in that: be provided with axle sleeve in the rotating shaft junction of described first rotating shaft and described second rotating shaft.