CN201849586U

CN201849586U - Bicycle frame structure

Info

Publication number: CN201849586U
Application number: CN201020593994XU
Authority: CN
Inventors: 曹永亮
Original assignee: YONGDA BICYCLE COMPONENT (HUZHOU) CO Ltd
Current assignee: YONGDA BICYCLE COMPONENT (HUZHOU) CO Ltd
Priority date: 2010-11-05
Filing date: 2010-11-05
Publication date: 2011-06-01
Anticipated expiration: 2020-11-05

Abstract

The utility model discloses a bicycle frame structure which comprises a middle tube; a top tube provided with a clothes bag is fixedly connected to one side of the middle tube; a hook is also arranged in the middle of the top tube; the top tube is fixedly connected with a head tube; one end of a bottom tube with a kettle holder in the middle is fixedly connected below the top tube via the head tube, and a five-way tube is fixedly connected to the other end of the bottom tube; the lower end of the middle tube is fixedly connected with the five-way tube; two rear upper forks are fixedly connected to the other side of the middle tube and connected with clamping hooks; and the clamping hooks are connected with one end of a rear lower fork, and the other end of the rear lower fork is connected with the five-way tube. The bicycle frame structure has the advantages of reasonably utilized space and enhanced storage capability.

Description

A kind of bicycle rack structure

Technical field

The utility model relates to a kind of link, relates in particular to a kind of bicycle rack structure that connects the two-wheeled cycle front and back wheel.

Background technology

Bicycle has become the indispensable vehicle in people's daily life, bicycle is made up of parts such as vehicle frame, tire, foot-operated, brake, chains, wherein vehicle frame is the skeleton of bicycle, it is the basic structure body that constitutes bicycle, miscellaneous part all is directly or indirectly to be installed on the vehicle frame, and vehicle frame generally adopts the normal carbon copper pipe through welding, combining.In order to alleviate pipe weight, improve intensity, owing to bicycle be rely on the propulsive effort of human body self and by bike technical ability exercise, can vehicle frame just become and bear impact load that bicycle produced under steam and the important structure body that deliver human body comfortable, safely, the quality of vehicle frame part accuracy of manufacture will directly influence ride safe, steady and brisk.The following pipe of existing bicycle rack is arranged to directly link to each other with the head pipe, and pipe is just very long so down, and load-carrying capacity does not have substantive the raising and waste material.

The utility model content

The utility model provides a kind of bicycle rack structure, to alleviate cost.

The technical solution of the utility model is: a kind of bicycle rack structure, comprise pipe in, one side captive joint one of middle pipe is provided with an end of the last pipe of kettle seat, pipe of the other end captive joint of last pipe, an end of pipe under 1/4 place's captive joint, one circular arc of last Guan Zaiqi length, the described five-way of lower end captive joint of middle pipe, the opposite side of middle pipe is fixedly connected with two Seat stays, Seat stay is connected with trip, and trip connects an end of Chain stay, and the other end of Chain stay connects five-way.

As of the present utility model a kind of preferred, middle pipe is the stainless steel tube of φ 35mm * 90cm, and last pipe is the stainless steel tube of φ 40mm * 110cm.

In sum, the utlity model has following advantage:

Pipe is arranged on 1/4 place of length of tube under the utility model handle, descend length of tube contrast prior art will lack 30% so, and preferred time pipe be shaped as circular arc, arc-shaped part as its load-carrying capacity of framing member greater than rod-like members, therefore under the prerequisite that does not reduce load-carrying capacity, reduce the use of time tube material, saved cost.

Description of drawings

Fig. 1 is a scheme drawing of the present utility model;

Fig. 2 is that A among Fig. 1 is to view.

Among the figure, 1, middle pipe; 2, go up pipe; 3, head pipe; 4, manage down; 5, five-way; 6, Seat stay; 7, trip; 8, Chain stay; 9, kettle seat.

The specific embodiment

The utility model is described in further detail with embodiment below in conjunction with accompanying drawing.

As illustrated in fig. 1 and 2, a kind of bicycle rack structure, comprise and manage 1 in one, a side captive joint one of middle pipe 1 is provided with an end of going up pipe 2 of kettle seat 9, on manage pipe 3 of other end captive joint of 2, one end of last pipe 2 pipe 4 under 1/4 place's captive joint, one circular arc of its length, the lower end captive joint five-way 5 of middle pipe 1, the opposite side of middle pipe 1 is fixedly connected with two Seat stays 6, and Seat stay 6 is connected with trip 7, trip 7 connects an end of Chain stay 8, and the other end of Chain stay 8 connects five-way 5.In pipe 1 be the stainless steel tube of φ 35mm * 90cm, on manage 2 and be the stainless steel tube of φ 40mm * 110cm.

More than explanation only is an explanation of the invention; make enforcement this programme that those of ordinary skills can be complete; but be not limitation of the present invention; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification sheets, but as long as all are subjected to the protection of patent law in claim scope of the present invention.

Claims

1. bicycle rack structure, comprise pipe (1) in, it is characterized in that: a side captive joint one of pipe (1) is provided with an end of going up pipe (2) of kettle seat (9) in described, a described pipe of other end captive joint (3) of going up pipe (2), described going up managed (2) manage (4) under 1/4 place's captive joint, one circular arc of its length a end, the described five-way of lower end captive joint (5) of pipe (1) in described, the opposite side of pipe (1) is fixedly connected with two Seat stays (6) in described, described Seat stay (6) is connected with trip (7), described trip (7) connects an end of Chain stay (8), and the other end of described Chain stay (8) connects described five-way (5).

2. a kind of bicycle rack structure according to claim 1 is characterized in that: pipe (1) is the stainless steel tube of φ 35mm * 90cm in described, and described upward pipe (2) is the stainless steel tube of φ 40mm * 110cm.