CN207060278U - Rhizoma Sparganii cone structure folding bicycle frame - Google Patents

Abstract

The utility model discloses Rhizoma Sparganii cone structure folding bicycle frame, pitched including upper left, upper right is pitched, left claw hook, right claw hook, the middle pipe being connected with upper left fork and upper right fork, the lower-left fork being connected with left claw hook, the bottom right fork being connected with right claw hook, the periphery of the middle pipe is vertically welded in five logical sides, one end of middle pipe and vehicle frame main beam pipe is fixedly linked, it is weldingly fixed on after the lower-left fork upper end and the upper end of bottom right fork are intersecting on vehicle frame main beam pipe, lower-left is pitched and bottom right fork is fixedly welded on five logical upper sides, lower-left is pitched and the both sides for being welded on middle pipe are pitched in bottom right, lower-left is pitched to be connected between the fork of bottom right with reinforcing plate, lower-left is pitched and bottom right fork is all in corner shape, it is connected between the upper right fork and upper left fork with arc reinforcing plate.The advantages that the utility model has intensity high, and uniform force, aesthetics is high, and weighted load structure of the vehicle frame formed with a three-dimensional triangular pyramid improves the bearing capacity of cycle frame.

Description

Rhizoma Sparganii cone structure folding bicycle frame

【Technical field】

It the utility model is related to the technical field of cycle frame, particularly Rhizoma Sparganii cone structure folding bicycle frame Technical field.

【Background technology】

Folding bicycle belongs to a classification of bicycle, and general folded bicycle has vehicle frame folding joint and standpipe folding joint Form, by vehicle frame folding, by front and rear two-wheeled doubling together, can reduce by 45% or so length；Folding bicycle is carried, made With Energy and comfort, mature production technology.Cycle frame stress is distributed to front wheels and rear wheels by front fork and back vent, after Fork is the structure for connecting cycle frame and trailing wheel, and its intensity requirement is higher than front fork；The middle pipe of folding bicycle is Vehicle seat is connected, vehicle seat is scalable in middle pipe, and vehicle frame supervisor middle part is foldable, and front frame, Rear frame can be divided at folding, Back vent can only connect at vehicle frame supervisor's folding in the Rear frame at rear；Vehicle frame is responsible for be led to by setting a reinforcement to connect with five Connect, from a structural point, do not reach best intensity effect.It is not high intensity to be present in some existing cycle frames, beautiful The property seen is poor, the problems such as discontinuity.

【Utility model content】

The purpose of this utility model is exactly to solve the problems of the prior art, proposes that a kind of Rhizoma Sparganii cone structure folds voluntarily Vehicle carriage, the weighted load structure that can make vehicle frame has a three-dimensional triangular pyramid improve the bearing capacity of cycle frame, intensity Height, uniform force, aesthetics are high.

To achieve the above object, the utility model proposes a kind of Rhizoma Sparganii cone structure folding bicycle frame, including a left side The upper end of upper fork, upper right fork, left claw hook, right claw hook, middle pipe, lower-left fork, bottom right fork, upper left fork and upper right fork is all and middle pipe It is connected, the lower end of upper left fork is connected with left claw hook, and the lower end of the upper right fork is connected with right claw hook, and the periphery of the middle pipe hangs down Straight to be welded on five logical sides, one end of middle pipe and vehicle frame main beam pipe is fixedly linked, the upper end of the lower-left fork upper end and bottom right fork It is weldingly fixed on after intersecting on vehicle frame main beam pipe, the bottom of lower-left fork is connected with left claw hook, lower-left fork and the fixed weldering of bottom right fork It is connected on five logical upper sides, the both sides for being welded on middle pipe are pitched in lower-left fork and bottom right, and reinforcing plate is used between lower-left fork and bottom right fork It is connected, lower-left fork and bottom right fork are all in corner shape, are connected between the upper right fork and upper left fork with arc reinforcing plate, upper right fork It is symmetrically welded at upper left fork in middle pipe, upper left fork and upper right fork are respectively positioned at the top of lower-left fork and bottom right fork.

Preferably, the vehicle frame main beam pipe is located at five logical tops, the position of the left claw hook and the position of right claw hook Flush with each other.

Preferably, left trigonum is formed between the vehicle frame main beam pipe, lower-left fork and middle pipe, the vehicle frame main beam pipe, Bottom right is pitched and right trigonum is formed between middle pipe, and bottom trigonum, the left side are formed between the lower-left fork, bottom right fork and middle pipe Trigonum, right trigonum and bottom trigonum are bound to each other to form Rhizoma Sparganii wimble structure.

The beneficial effects of the utility model：The utility model is welded on middle pipe by the upper end for pitching upper left fork and upper right On, upper left fork, the lower end of upper right fork are each connected with corresponding left claw hook with right claw hook, and lower-left fork, the upper end of bottom right fork are intersected And be welded on vehicle frame main beam pipe, lower-left fork, the lower end of bottom right fork are each connected with corresponding left claw hook, right claw hook, lower-left fork, The turning bottom of bottom right fork is welded on five logical upper sides, and the both sides for being welded on middle pipe are pitched in lower-left fork and bottom right so that vehicle frame Form Mitsubishi cone structure between main-beam pipe, middle pipe, lower-left fork, bottom right fork, ensure that the fastness of unitized frame is good, vehicle frame it is strong Degree is high, will not loosen under external force, there is a good security, and stress is relatively uniform.

Feature and advantage of the present utility model will be described in detail by embodiment combination accompanying drawing.

【Brief description of the drawings】

Fig. 1 is the front view of the utility model Rhizoma Sparganii cone structure folding bicycle frame；

Fig. 2 is the main view profile of the utility model Rhizoma Sparganii cone structure folding bicycle frame.

In figure：1- upper lefts fork, 2- upper rights fork, 3- left claws hook, the right claw hooks of 4-, 5- middle pipes, 6- lower-lefts fork, 7- bottom rights fork, 8- Five is logical, 9- vehicle frame main beam pipes.

【Embodiment】

Refering to Fig. 1 and Fig. 2, the utility model Rhizoma Sparganii cone structure folding bicycle frame, including upper left fork 1, upper right fork 2nd, the upper end of left claw hook 3, right claw hook 4, middle pipe 5, lower-left fork 6, bottom right fork 7, upper left fork 1 and upper right fork 2 all with the phase of middle pipe 5 Even, the lower end of upper left fork 1 is connected with left claw hook 3, and the lower end that the upper right pitches 2 is connected with right claw hook 4, the middle pipe 5 it is cylindrical Face is vertically welded in five logical 8 sides, and one end of middle pipe 5 and vehicle frame main beam pipe 9 is fixedly linked, and 6 upper ends and bottom right are pitched in the lower-left It is weldingly fixed on after the upper end of fork 7 is intersecting on vehicle frame main beam pipe 9, the bottom of lower-left fork 6 is connected with left claw hook 3, and 6 Hes are pitched in lower-left Bottom right fork 7 is fixedly welded on five logical 8 upper side, and 7 both sides for being welded on middle pipe 5, lower-left fork are pitched in lower-left fork 6 and bottom right It is connected between the fork of bottom right with reinforcing plate, lower-left fork and bottom right fork are all in corner shape, are used between the upper right fork and upper left fork Arc reinforcing plate is connected, upper right fork and upper left fork is symmetrically welded in middle pipe, upper left fork and upper right fork respectively positioned at lower-left fork and The top of bottom right fork, upper left fork 2 and upper right fork 1 are respectively positioned at the top of lower-left fork 6 and bottom right fork 7, the vehicle frame main beam pipe 9 In five logical 8 top, the position of the left claw hook 3 and the position flush with each other of right claw hook 4, the vehicle frame main beam pipe 9, lower-left fork Left trigonum is formed between 6 and middle pipe 5, right trigonum is formed between the vehicle frame main beam pipe 9, bottom right fork and middle pipe 5, it is described Bottom trigonum, the left trigonum, right trigonum and bottom trigonum phase are formed between lower-left fork 6, bottom right fork 7 and middle pipe 5 Mutually combine to form Rhizoma Sparganii wimble structure.

Utility model works process：

In the course of the work, bicycle rack is in stress, car for the utility model Rhizoma Sparganii cone structure folding bicycle frame The left trigonum that is formed can share that left surface is vertical to load with stress between frame main-beam pipe, lower-left fork and middle pipe, vehicle frame main beam pipe, Bottom right, which is pitched, can share the vertical intensity for loading with stress of right flank the right trigonum formed between middle pipe, and lower-left fork, the right side Bottom trigonum is formed between lower fork and middle pipe again, final left trigonum, right trigonum and bottom trigonum are bound to each other to form Three-dimensional Rhizoma Sparganii wimble structure, Rhizoma Sparganii wimble structure realize multiple spot stress, complete the loaded work piece of whole vehicle frame very well.

The utility model Rhizoma Sparganii cone structure folding bicycle frame, the upper end of upper left fork 1 and upper right fork 2 is welded on In middle pipe, upper left fork 1, the lower end of upper right fork 2 are each connected with corresponding left claw hook 3 with right claw hook 4, lower-left fork 1, bottom right fork 2 Upper end intersect and be welded on vehicle frame main beam pipe 9, lower-left fork 6, bottom right fork 7 lower end each with corresponding left claw hook 3, right pawl Hook 4 is connected, and lower-left fork 6, the turning bottom of bottom right fork 7 are welded on five logical 8 upper sides, and lower-left fork 6 and bottom right fork 7 are welded on The both sides of middle pipe 5 so that form Mitsubishi's cone structure between vehicle frame main beam pipe 9, middle pipe 5, lower-left fork 6, bottom right fork 7, ensure whole The fastness of body vehicle frame is good, and the intensity of vehicle frame is high, will not loosen under external force, there is good security, stress phase To uniform.

Above-described embodiment be to explanation of the present utility model, be not to restriction of the present utility model, it is any new to this practicality Scheme after type simple transformation belongs to the scope of protection of the utility model.

Claims (3)

1. A kind of 1. Rhizoma Sparganii cone structure folding bicycle frame, it is characterised in that：Including upper left fork (1), upper right fork (2), left claw The upper end of hook (3), right claw hook (4), middle pipe (5), lower-left fork (6), bottom right fork (7), the upper left fork (1) and upper right fork (2) is all It is connected with middle pipe (5), the lower end of upper left fork (1) is connected with left claw hook (3), the lower end of the upper right fork (2) and right claw hook (4) phase Even, the periphery of the middle pipe (5) is vertically welded in five logical (8) sides, and one end of middle pipe (5) and vehicle frame main beam pipe (9) is fixed It is connected, is weldingly fixed on after the upper end that (7) are pitched in lower-left fork (6) upper end and bottom right is intersecting on vehicle frame main beam pipe (9), lower-left fork (6) bottom is connected with left claw hook (3), and lower-left fork (6) and bottom right fork (7) are fixedly welded on the upper side of five logical (8), left Lower fork (6) and bottom right fork (7) are welded on the both sides of middle pipe (5), are connected between lower-left fork (6) and bottom right fork (7) with reinforcing plate, left Lower fork (6) and bottom right fork (7) are all in corner shape, are connected between the upper right fork (2) and upper left fork (1) with arc reinforcing plate, Upper right pitches (2) and upper left fork (1) is symmetrically welded in middle pipe (5), and upper left fork (2) and upper right fork (1) are respectively positioned at lower-left fork (6) With the top of bottom right fork (7).
2. 2. Rhizoma Sparganii cone structure folding bicycle frame as claimed in claim 1, it is characterised in that：The vehicle frame main beam pipe (9) positioned at the top of five logical (8), the position of the left claw hook (3) and the position flush with each other of right claw hook (4).
3. 3. Rhizoma Sparganii cone structure folding bicycle frame as claimed in claim 1, it is characterised in that：The vehicle frame main beam pipe (9) left trigonum, is formed between lower-left fork (6) and middle pipe (5), between the vehicle frame main beam pipe (9), bottom right fork and middle pipe (5) Right trigonum is formed, formation bottom trigonum between the lower-left fork (6), bottom right fork (7) and middle pipe (5), the left trigonum, Right trigonum and bottom trigonum is bound to each other to form Rhizoma Sparganii wimble structure.