CN202807001U

CN202807001U - Bicycle frame with strengthening configuration

Info

Publication number: CN202807001U
Application number: CN 201220435413
Authority: CN
Inventors: 蒲龙伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-29
Filing date: 2012-08-29
Publication date: 2013-03-20
Anticipated expiration: 2022-08-29

Abstract

A bicycle frame with strengthening configuration comprises a middle tube, a front fork tube, a head tube, and an upper tube and a lower tube which are connected on the head tube, wherein the other ends of the upper tube and lower tube are connected with the middle tube respectively, and a triangular structure is formed by the upper tube, the lower tube and the middle tube. The bicycle frame is characterized in that the upper tube has a hollow structure; a heterogeneous reinforcement tube is disposed on one end of the upper tube with the end close to the middle tube, is molded into one piece with the upper tube, and extends to and is connected on the middle tube; a small triangular structure is formed by a part of the middle tube, a part of the upper tube and the heterogeneous reinforcement tube. According to the bicycle frame of the utility model, the heterogeneous reinforcement tube is added between the upper tube and the middle tube to enhance the strengthen of the frame; a reinforcement triangle formed by the heterogeneous reinforcement tube, the middle tube and the upper tube is added based on the original triangle of the frame, so as to further strengthen stability and soundness of the frame structure; and the middle tube and the heterogeneous reinforcement tube are hollow tubes molded into one piece, thereby reducing mass without influencing strength of the structure, and the bicycle is exempt from crafts such as welding, simple, and strong in practicality.

Description

A kind of vehicle frame of strengthening configuration

[technical field]

The utility model relates to cycle frame, relates in particular to the large body frame structure for automotive of a kind of light weight structural strength.

[background technology]

Although private car is popularized gradually, but the bicycle that the environment-friendly and green safety performance is higher does not withdraw from people's life also, though enter into amusement and recreation, match sports field, because being fit to the people of all age group, uses by bicycle, so the research for bicycle also never is interrupted in order to adapt to market, businessman constantly weeds out the old and bring forth the new, demand for the bicycle product is mainly manifested in portable at present, light and handy and of fine quality, the bicycle main body structure comprises connecting vehicle frame and wheel, vehicle frame comprises again the upright middle pipe that connects vehicle seat, be connected respectively to the top tube and down tube of car front fork tube, upper pipe, lower pipe and middle pipe consist of the three-legged structure of stability under loading usually, generally for the quality control of vehicle body and structural development all from upper pipe, the three-legged structure that lower pipe and middle pipe connect and compose is started with, the mode that some manufacturer's employing is found time into hollow tubular with upper pipe is gently changed the vehicle frame overall weight, but affected the intensity of vehicle frame, make tripod structure no longer stable, then so lightization quality means are to sacrifice bicycle safe and stability is cost, also some adopts light weight and the high-strength alloy metal-made is made for hollow vehicle frame, but cost is high, become the high-end consumables, be not the price that general general masses sieve can bear, the product that needs is to adopt common versatile material to reach the intensity height and the purpose of light weight by optimizing structure design.

[summary of the invention]

The utility model for above problem proposed a kind of can effectively alleviate the vehicle frame total quality guaranteed the vehicle frame Joint strenght, simultaneously vehicle body keeps streamline moulding, grace simple in structure, technique is simple, cost is lower.

The technical solution of the utility model is: a kind of vehicle frame of strengthening configuration, comprise and directly be connected upright middle pipe with vehicle seat, the fixing front fork tube of front-wheel, head tube with front fork tube, be connected respectively to the top tube and down tube on the head tube, and the other end of top tube and down tube is connected with middle pipe respectively, described upper pipe, lower pipe and middle pipe consist of triangular structure, it is characterized in that, described upper pipe is hollow structure, at the end of upper pipe near middle pipe, one-body moldedly from the upper pipe go out an isomery reinforced pipe, described isomery reinforced pipe extension is connected on the middle pipe part of middle pipe, the part of upper pipe and described isomery reinforced pipe consist of a little triangular structure.

The cross sectional shape of described upper pipe and isomery reinforced pipe is the equilateral triangle of corner arc, and the angle position is towards the car body below.

The thickness of pipe of described upper pipe is inconsistent, and is thicker than the thickness of pipe of close head tube part in the thickness of pipe near middle tube portion, middle even transition.

Described upper pipe and isomery reinforced pipe are formed in one, the round and smooth linking in profile and hollow part.

The beneficial effects of the utility model are: strengthen frame strength by add the isomery reinforced pipe between upper pipe and middle pipe, and car body itself has the triangular structure of pipe in, top tube and down tube formation, reconstruct one by isomery reinforced pipe and middle pipe, upper pipe on this basis and reinforce triangle, further Strengthening bicycle frame structural stability and fastness, middle pipe and isomery reinforced pipe are integrated hollow tubes, when alleviating quality, can not affect the intensity of structure, and removed the techniques such as welding from, simple and practical.

[description of drawings]

Fig. 1 is the utility model one embodiment vehicle frame integral structure scheme drawing;

Fig. 2 is tube section scheme drawing on the utility model;

Fig. 3 is middle pipe and isomery reinforced pipe scheme drawing.

Wherein: 1, middle pipe; 2, head tube; 3, upper pipe; 31, the first cross section; 32, the second cross section; 4, lower pipe; 5 isomery reinforced pipes.

[specific embodiment]

A kind of vehicle frame of strengthening configuration, comprise and directly be connected upright middle pipe 1 with vehicle seat, the fixing front fork tube of front-wheel, head tube 2 with front fork tube, be connected respectively to upper pipe 3 and lower pipe 4 on the head tube 2, and upper pipe 3 is connected with middle pipe 1 respectively with the other end of lower pipe 4, described upper pipe 3, lower pipe 4 and middle pipe 1 consist of triangular structure, it is characterized in that, described upper pipe 3 is hollow structure, at the end of upper pipe 3 near middle pipe 1, one-body moldedly from the upper pipe 3 go out an isomery reinforced pipe 5, described isomery reinforced pipe 5 extensions are connected on the middle pipe 1 part of middle pipe 1, the part of upper pipe 3 and described isomery reinforced pipe 5 consist of a little triangular structure.Above theory of structure, calculate, this car body is not only a following large triangular structure that is made of upper pipe, lower pipe and middle pipe, the little triangular structure that consists of with a part and the isomery reinforced pipe 5 of the part by upper pipe, middle pipe, can regard the polygon of an integral body as and bear integral pressure, configuration is more stable and stressed more even, meets mechanics principle.

The thickness of pipe of described upper pipe is inconsistent, and is thicker than the thickness of pipe of close head tube part in the thickness of pipe near middle tube portion, middle even transition.Compare near the first cross section 31 of middle tube portion with near the second cross section 32 of head tube part, the thickness of pipe that demonstrates on the first cross section 31 obviously is thicker than the thickness of pipe that demonstrates on the second cross section 32.

Described upper pipe and isomery reinforced pipe are formed in one, the round and smooth linking in profile and hollow part.Adopt hydraulic molding technique water annotate/oil annotates, visually, the edge transition at deformation process position is smoothly attractive in appearance, the 3D three-dimensional line is obvious, and is applicable to hollow structure pipe fitting among the different thick abnormity.

The above, it only is the utility model preferred embodiment, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, refer to any simple modification that above embodiment is done according to the utility model technology, equivalent variations and modification all belong in the scope of technical solutions of the utility model.

Claims

1. vehicle frame of strengthening configuration, comprise and directly be connected upright middle pipe with vehicle seat, the fixing front fork tube of front-wheel, head tube with front fork tube, be connected respectively to the top tube and down tube on the head tube, and the other end of top tube and down tube is connected with middle pipe respectively, described upper pipe, lower pipe and middle pipe consist of triangular structure, it is characterized in that, described upper pipe is hollow structure, at the end of upper pipe near middle pipe, one-body moldedly from the upper pipe go out an isomery reinforced pipe, described isomery reinforced pipe extension is connected on the middle pipe part of middle pipe, the part of upper pipe and described isomery reinforced pipe consist of a little triangular structure.

2. the vehicle frame of described reinforcement configuration according to claim 1 is characterized in that the cross sectional shape of described upper pipe and isomery reinforced pipe is the equilateral triangle of corner arc, and the angle position is towards the car body below.

3. the vehicle frame of described reinforcement configuration according to claim 2 is characterized in that the thickness of pipe of described upper pipe is inconsistent, and is thicker than close head tube thickness of pipe partly in the thickness of pipe near middle tube portion, middle even transition.

4. the vehicle frame of described reinforcement configuration according to claim 3 is characterized in that described upper pipe and isomery reinforced pipe are formed in one, the round and smooth linking in profile and hollow part.