CN201472585U

CN201472585U - Easy folding bicycle steering frame

Info

Publication number: CN201472585U
Application number: CN2009201381787U
Authority: CN
Inventors: 黄淳权; 刘小童
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-08
Filing date: 2009-05-08
Publication date: 2010-05-19
Anticipated expiration: 2019-05-08

Abstract

The utility model provides an easy folding bicycle steering frame, which relates to a bicycle, in particular to an easy folding bicycle steering frame. The utility model provides the easy folding bicycle steering frame, which has folding handles and can obviously reduce the height. The easy folding bicycle steering frame is provided with a handle part and a front fork part, wherein the handle part is provided with handles and at least one handle vertical rod, the handles and the handle vertical rod are rotatablely connected, a folding node is arranged on the handle vertical rod, a left fork pipe and a right fork pipe are arranged on the front fork part, the upper end of the left fork pipe and the upper end of the right fork pipe are connected, and the handle vertical rod is connected with the left fork pipe or/and the right fork pipe of the front fork part in a telescopic mode. The utility model has the obvious advantages and effects that the external dimension of the bicycle after being folded can be obviously reduced, the folding operation is fast and convenient, and in addition, the easy folding bicycle steering frame is suitable for being used by adults and children.

Description

A kind of easily folding bicycle bogie

Technical field

The utility model relates to bicycle, especially relates to easily folding bicycle bogie.

Background technology

Because have institute's little, advantage such as go out of collecting and be easy to carry about with one easily that takes up space after Folding Bicycle is folding, therefore, Folding Bicycle more and more is subjected to customer's favor.But existing Folding Bicycle ubiquity folding operation trouble, the unfavorable problem of folding effect, wherein to receive overlapping state not good is one of major cause to the handle of bogie truck, below casehistory.

Fig. 1 and 2 provides existing a kind of Folding Bicycle front vehicle frame, and this Folding Bicycle front vehicle frame mainly is provided with bull stick 52, be fixed in central siphon 70 on this bull stick 52, be fixed in the handle 51 of these bull stick 52 upper ends and be fixed in the U font front fork stem 60 of these bull stick 52 lower ends.Central siphon 70 connects with the crossbeam (in Fig. 1 and 2, the crossbeam of vehicle frame does not draw) of vehicle frame.When the user desires to carry out folding storage, can by be located at folding node 521 on the bull stick 52 with bull stick 52 to oblique folded beneath.If it is folding forward, then handle 51 can touch the front-wheel (front-wheel does not draw among Fig. 1 and 2) that is installed on the front fork stem 60, cause to have good folding effect, so general bull stick 52 all is designed to and can contacts with front-wheel to avoid handle 51 to the mode of oblique folded beneath.But, because bull stick 52 to oblique folded beneath, can make the part of handle 51 protrude, can not fit with front fork stem 60 parts such as grade, make folding effect bad, have a strong impact on its practicality.In addition, not flexible of the following joint of this bull stick 52 (folding node 521 be upper and lower two train spacing points that save of bull stick 52), therefore, even bull stick 52 can be to oblique folded beneath, but handle 51 residing height can't further reduce, and still influence folding effect.

Fig. 3 provides the handle portion of existing another kind of Folding Bicycle, comprise handle 351, stem 352, stem 352 is located on the connecting portion 361 of front fork 360, this connecting portion 361 is provided with vehicle frame front tube 370, front tube 370 is connected with cross member of frame, this stem 352 is in order to satisfy the demand that handle 351 height can carry out lift adjustment, and this stem 352 is designed to have Telescopic.But because this stem 352 is subjected to structural limitations, its stroke is very little, and functions of use is limited, so the height of handle 351 reduction degree is not obvious, still influences folding effect.

Publication number provides a kind of Foldable travelling-cased bicycle for the application for a patent for invention of CN101172509, comprise casing, collapsible Foldable bicycle tap in the casing and handle, the telescopic bicycle front frame that connects with handle-bar and handle, the bicycle wheels formation of being placed on, bicycle middle shaft is arranged on the casing, described bicycle rear shaft is arranged at the rear lower of casing, the part of bicycle rear is placed on outside the casing, and another part of bicycle rear then is placed in the casing; Be connected with telescopic front vehicle frame pipe on the front fork that bicycle front frame and front-wheel cooperate, described telescopic front vehicle frame pipe matches with fixedly chute in being arranged on casing.This invention is by to each constituent elements of Foldable travelling-cased bicycle, after the position that is positioned at casing is provided with, simplified the folding step of bicycle, alleviated the weight of bicycle, and it is convenient more to make it to carry, thereby has vast market prospect.

Notification number provides the combined structure of a kind of folding bicycle handlebar stem and front fork tube for the utility model patent of CN200951821, has leader's bar, one end links a folder, this folder has a upper shell, a lower house and a conjunction, mat one Fast detachable unit is with this upper and lower casing combination or disengaging, pipe fitting in the middle of this folder below connects one, and in this centre pipe fitting a sheathed front fork tube; The housing centre offers a perforation under this folder, wears for a screw rod, is equipped with an axle sleeve between folder and middle pipe fitting, is provided with negative thread in it; This front fork tube top is provided with outside thread, be used for axle sleeve within screw thread screw togather; In front fork tube, be provided with a locating piece with a screw; During assembling, this front fork tube is inserted in this centre pipe fitting, again with the outside thread of front fork tube and the internal screw-thread screw of this axle sleeve, then, the perforation that screw rod is passed this folder lower house penetrate in this front fork tube again and the screw of this locating piece after screw, handlebar stem is combined with this front fork tube is firm.

Summary of the invention

The purpose of this utility model provides a kind of handle easily folding bicycle bogie folding and significantly reduction height that makes.

The utility model is provided with handle portion and front fork part; Handle portion is provided with handle and at least 1 handle vertical rod, handle and handle vertical rod are rotationally connected, the handle vertical rod is provided with the turnover node, front fork partly is provided with left breeches pipe and right breeches pipe, breeches pipe upper end, a left side is connected with right breeches pipe upper end, and handle vertical rod and front fork left breeches pipe partly is or/and right breeches pipe is telescopic is connected.

Handle can be integral handle or split type handle.

Split type handle is provided with left handle and right handle, the handle vertical rod is provided with left handle vertical rod and right handle vertical rod, the upper end and the left handle of left side handle vertical rod are rotationally connected, the upper end and the right handle of right handle vertical rod are rotationally connected, the lower end of left side handle vertical rod is connected with left breeches pipe is flexible, and the lower end of right handle vertical rod is connected with right breeches pipe is flexible.

The turnover node preferably is rotationally connected by bearing pin, and bearing pin is preferably perpendicular to the paper direction or is parallel to the paper direction.

Because the utility model adopts said structure, when bicycle folding, handle with the left and right directions setting changes into fore-and-aft direction earlier, again with the handle vertical rod to lower compression, make the left breeches pipe of handle vertical rod retraction front fork part or/and in the right breeches pipe, transfer by the bearing pin of turnover node then, make the handle vertical rod folding downwards, like this, the height of handle can significantly reduce.This shows, compared with the prior art, the utlity model has the oad that can significantly reduce behind the bicycle folding, and outstanding fast and easily advantage of folding operation and beneficial effect, and drive applicable to adult and child.

Description of drawings

Fig. 1 is a kind of Folding Bicycle front vehicle frame structural representation of the prior art.

Fig. 2 is the folded state scheme drawing of Fig. 1.

Fig. 3 is the contraction state scheme drawing of another folding bicycle handles part of the prior art and handle thereof.

Fig. 4 is the structural representation of the utility model embodiment 1.

Fig. 5 is the schematic side view of Fig. 4.

Fig. 6 is the flexible view of Fig. 4.

Fig. 7 is the schematic side view of Fig. 6.

Fig. 8 is the handle vertical rod turnover view of Fig. 7.

Fig. 9 is the structural representation of the utility model embodiment 2.

Figure 10 is the structural representation of the utility model embodiment 3.

Figure 11 is the structural representation of the utility model embodiment 4.

The specific embodiment

Embodiment 1

Referring to Fig. 4～8, the utility model is provided with handle portion and front fork part.Handle portion is provided with left handle 11, right handle 12, left handle vertical rod 21 and right handle vertical rod 22.Front fork partly is provided with left breeches pipe 31 and right breeches pipe 32.Left side handle 11 is rotationally connected through bearing pin 111 with left handle vertical rod 21, and bearing pin 111 is perpendicular to paper.Right handle 12 is rotationally connected through bearing pin 221 with right handle vertical rod 22.Left side handle vertical rod 21 is provided with bearing pin 211, and bearing pin 211 is perpendicular to paper.Left side handle vertical rod 21 can be through bearing pin 211 turnovers, and right handle vertical rod 22 can be through bearing pin 221 turnovers.Breeches pipe 31 upper ends, a left side are connected through connecting panel 33 with right breeches pipe 32 upper ends.The lower end of left side handle vertical rod 21 is positioned at left breeches pipe 31, forms scalable connection, and the lower end of right handle vertical rod 22 is positioned at right breeches pipe 32, also forms scalable connection.The front tube P1 of cross member of frame P2 is connected with connecting panel 33.The front axle P4 of front vehicle wheel P3 and left breeches pipe 31 and right breeches pipe 32 lower ends are rotationally connected.Shown in Fig. 6 and 7, in the breeches pipe 31 of left handle vertical rod 21 a retractions left side, in the right breeches pipe 32 of right handle vertical rod 22 retractions, thereby the handle highly significant is reduced, reduce bicycle folding greatly after institute take up space.

As shown in Figure 8, it is folding that left side handle vertical rod 21 can be done backward (being parallel to paper) upset downwards through bearing pin 211, and, left handle 11 can through bearing pin 111 backward downwards (being parallel to paper) rotate, identical when right handle vertical rod 22 is folding with the folding mode of left handle vertical rod 21.Like this, can make the handle height be lower than the height of cross member of frame P2, further improve the bicycle folding effect.

Embodiment 2

Referring to Fig. 9, similar to Example 1, difference is: handle 1 is integral handle, and 2 of handle vertical rods are established 1, handle vertical rod 2 and left 31 telescopic connections of breeches pipe.The handle 1 turnover principle of present embodiment is identical with left handle or the right handle turnover principle of embodiment 1.All the other labels among Fig. 9 are corresponding consistent with Fig. 4.

Embodiment 3

Referring to Figure 10, similar to Example 1, difference is: the bearing pin 211 among Figure 10 ' and 221 ' be the direction that the bearing pin among Fig. 4 211 and 221 is parallel to instead paper.Like this, left handle vertical rod 11 can be folding through (perpendicular to the paper) upset downwards left of bearing pin 211 ' do, and right handle 21 can be folding through (perpendicular to the paper) upset downwards to the right of bearing pin 221 ' do.All the other labels among Figure 10 are corresponding consistent with Fig. 4.

Embodiment 4

Referring to Figure 11, similar to Example 2, difference is: the bearing pin 2111 among Figure 11 is the directions that the bearing pin among Fig. 9 211 are parallel to instead paper.Like this, can to do left (perpendicular to paper) upset downwards through bearing pin 2111 folding for left handle vertical rod 1.All the other labels among Figure 11 are corresponding consistent with Fig. 9.

Claims

1. an easily folding bicycle bogie is characterized in that being provided with handle portion and front fork part; Handle portion is provided with handle and at least 1 handle vertical rod, handle and handle vertical rod are rotationally connected, the handle vertical rod is provided with the turnover node, front fork partly is provided with left breeches pipe and right breeches pipe, breeches pipe upper end, a left side is connected with right breeches pipe upper end, and handle vertical rod and front fork left breeches pipe partly is or/and right breeches pipe is telescopic is connected.

2. a kind of easily folding bicycle bogie as claimed in claim 1 is characterized in that described handle is an integral handle.

3. a kind of easily folding bicycle bogie as claimed in claim 1 is characterized in that described handle is split type handle.

4. a kind of easily folding bicycle bogie as claimed in claim 3, it is characterized in that split type handle is provided with left handle and right handle, the handle vertical rod is provided with left handle vertical rod and right handle vertical rod, the upper end and the left handle of left side handle vertical rod are rotationally connected, the upper end and the right handle of right handle vertical rod are rotationally connected, the lower end of left side handle vertical rod is connected with left breeches pipe is flexible, and the lower end of right handle vertical rod is connected with right breeches pipe is flexible.

5. a kind of easily folding bicycle bogie as claimed in claim 1, the node that it is characterized in that transferring is rotationally connected by bearing pin.

6. a kind of easily folding bicycle bogie as claimed in claim 5 is characterized in that bearing pin is vertical direction setting or horizontal direction setting.