CN205769878U - The road cycling that span is low - Google Patents

Abstract

The utility model discloses the road cycling that span is low, it relates to field of mechanical technique.The side of its upper pipe is connected together with first pipe, first pipe middle part caves inward, above the upper crest line of depressed area and upper tube side face, the peak of crest line is bonded together, crest line connects in one, the upper plane plane upper with first pipe that upper pipe connects end with first pipe is parallel, upper pipe and upper fork are welded, welding fabrication pipe between upper Guan Yuzhong pipe, upper fork is welded on middle pipe and upper pipe, the left and right of upper fork is welded, and down tube, in the lower section of upper pipe, connects head pipe and middle pipe, upper fork and lower fork are connect by ditch ZHUANLIAN, are provided with five-way between lower fork and down tube；Described vehicle frame material uses ultralight aircraft aluminum, and bicycle frame pipe all uses the ultra-thin system of taking out in three rank, uses superplastic formation manufacture.This utility model has the beneficial effect that it uses integral molding design, handsome in appearance, embodies science and technology and aluminium alloy forming technique, uses superplastic formation mode, strengthens and trample rigidity, handsome in appearance generous.

Description

The road cycling that span is low

Technical field

This utility model relates to field of mechanical technique, is specifically related to the road cycling that span is low.

Background technology

In prior art, bicycle uses pipe, extrusion type pipe and common moulding pipe assembly welding to be connected into triangle before and after standard Shape vehicle frame, moulding is simple, it is impossible to embodies design sense and manufactures science and technology sense, frame strength, rigidity and comfort level all deviations of riding.

Utility model content

The purpose of this utility model is the defect for prior art and deficiency, it is provided that a kind of simple in construction, design are closed Reason, the road cycling that easy to use, span is low, it can be more preferable

Ground ensures that user to the manipulation of bicycle and safety, strengthens the cast of overstriking and guarantees frame strength and durable Property, being conducive to manufacturing, vehicle frame moulding and the MPV (Multi-Purpose Vehicle) shelf structure with science and technology sense attract society to have deep love for bicycle, Have deep love for motion of riding, reach Green Travel, the work of environmental conservation has, beneficially energy-saving and emission-reduction.

In order to solve the problem existing for background technology, the technical solution adopted in the utility model is: it include first pipe, on Pipe, down tube, middle pipe, upper fork, lower fork, ditch pawl, formed pipe, five-way；The side of described upper pipe is connected together with first pipe, in first pipe Between position cave inward, above the upper crest line of depressed area and upper tube side face, the peak of crest line is bonded together, crest line connect in Integrally, the upper plane plane upper with first pipe that upper pipe connects end with first pipe is parallel, and upper pipe and upper fork are welded, in straight line, Welding a formed pipe between upper Guan Yuzhong pipe, upper fork is welded on middle pipe and upper pipe, and the left and right of upper fork is welded, and it is special to do Hiding welding bead after process, making fork is a figure modelling, and down tube, in the lower section of upper pipe, connects head pipe and middle pipe, upper fork and lower fork lead to Cross ditch ZHUANLIAN to connect, between lower fork and down tube, be provided with five-way.

Further, described vehicle frame material uses ultralight aircraft aluminum, and bicycle frame pipe all uses the ultra-thin system of taking out in three rank, uses Superplastic formation manufactures, and rigidity, intensity, precision, profile are all good.

After using said structure, this utility model has the beneficial effect that its upper fork uses integral molding design, the Beauty Seeing, embody science and technology and aluminium alloy forming technique, middle pipe uses superplastic formation mode, strengthens and tramples rigidity, handsome in appearance generous.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Description of reference numerals: first pipe 1, upper pipe 2, down tube 3, middle pipe 4, upper fork 5, lower fork 6, ditch pawl 7, formed pipe 8, five-way 9.

Detailed description of the invention

Below in conjunction with the accompanying drawings, this utility model is further described.

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and concrete Embodiment, is further elaborated to this utility model.Should be appreciated that detailed description of the invention described herein is only used To explain this utility model, it is not used to limit this utility model.

As it is shown in figure 1, this detailed description of the invention adopts the following technical scheme that it includes first pipe 1, upper pipe 2, down tube 3, middle pipe 4, upper fork 5, lower fork 6, ditch pawl 7, formed pipe 8, five-way 9；The side of described upper pipe 2 is connected together with first pipe 1, in the middle of first pipe 1 Position caves inward, and above the upper crest line of depressed area and upper pipe 2 side, the peak of crest line is bonded together, and crest line connects in one Body, the upper plane that upper pipe 2 connects end with first pipe 1 is parallel with plane on first pipe 1, and upper pipe 2 and upper fork 5 are welded, straight in one Line, welds a formed pipe 8 between upper pipe 2 with middle pipe 4, upper fork 5 is welded on middle pipe 4 and upper pipe 2, the left and right welding of upper fork 5 Integrally, do and hide welding bead after special handling, make fork 5 in a figure modelling, down tube 3 in the lower section of upper pipe 2, connect first pipe 1 and in Pipe 4, upper fork 5 and lower fork 6 are connected by ditch pawl 7, are provided with five-way 9 between lower fork 6 and down tube 3.

Further, described vehicle frame material uses ultralight aircraft aluminum, and bicycle frame pipe all uses the ultra-thin system of taking out in three rank, uses Superplastic formation manufactures, and rigidity, intensity, precision, profile are all good.

Upper fork 5 uses integral molding to design, handsome in appearance, embodies science and technology and aluminium alloy forming technique, and middle pipe 4 uses super Molded mode, strengthens and tramples rigidity, handsome in appearance generous, and upper surface, upper pipe 2 front is parallel with first pipe 1 upper surface, down tube 3 and First pipe 1 connects end arc, effective guarantee head pipe 1 end intensity and rigidity, also has preferably manipulation for riding and stablizes, upper pipe 2 Linearly design with upper fork 5, effectively lower bicycle span, more meet ergonomic designs, ultralight car body design, make car load Weight is lighter, and strong body structure, high-tech formation of tubes technique and the vehicle frame shape-designing of full sunlight more can carry Cycling is had deep love for by dynamic consumer, thus drives bicycle trade to develop.

This detailed description of the invention can better ensure that user, to the manipulation of bicycle and safety, strengthens overstriking Cast guarantees frame strength and ruggedness, is conducive to manufacturing, and has vehicle frame moulding and the MPV (Multi-Purpose Vehicle) shelf structure of science and technology sense Attract society to have deep love for bicycle, have deep love for motion of riding, reach the effect of Green Travel, environmental conservation, the most energy-conservation subtract Row.

The above, is only in order to the technical solution of the utility model to be described and unrestricted, those of ordinary skill in the art couple Other amendment or equivalent that the technical solution of the utility model is made, without departing from technical solutions of the utility model Spirit and scope, all should contain in the middle of right of the present utility model.

Claims (1)

1. the road cycling that span is low, it is characterised in that include first pipe (1), upper pipe (2), down tube (3), middle pipe (4), upper fork (5), lower fork (6), ditch pawl (7), formed pipe (8), five-way (9)；The side of described upper pipe (2) is connected together with first pipe (1), first Pipe (1) middle part caves inward, and above the upper crest line of depressed area and upper pipe (2) side, the peak of crest line is bonded together, Crest line connects in one, and the upper plane that upper pipe (2) connects end with first pipe (1) is parallel with first (1) above plane of managing, upper pipe (2) and upper Fork (5) is welded, in straight line, welds a formed pipe (8) between upper pipe (2) with middle pipe (4), and upper fork (5) is welded in On middle pipe (4) and upper pipe (2), the left and right of upper fork (5) is welded, and upper fork (5) is in a figure modelling, and down tube (3) is at upper pipe (2) Lower section, connects head pipe (1) and middle pipe (4), and upper fork (5) and lower fork (6) are connected by ditch pawl (7), between lower fork (6) and down tube (3) It is provided with five-way (9).