CN201660072U

CN201660072U - Four-connecting-rod structure for semiautomatic folding power-assisted vehicle

Info

Publication number: CN201660072U
Application number: CN201020158325XU
Authority: CN
Inventors: 钱东高
Original assignee: WUXI SOUTHEAST VEHICLE TECHNOLOGY Co Ltd
Current assignee: WUXI SOUTHEAST VEHICLE TECHNOLOGY Co Ltd
Priority date: 2010-04-14
Filing date: 2010-04-14
Publication date: 2010-12-01
Anticipated expiration: 2020-04-14

Abstract

The utility model provides a four-connecting-rod structure for a semiautomatic folding power-assisted vehicle which has functions of vibration reduction and self locking while having supporting function, and has better safety performance. The four-connecting-rod structure comprises a front connecting seat, a main bearing seat, an upper connecting rod and a lower connecting rod, wherein two ends of the upper connecting rod and two ends of the lower connecting rod are respectively and rotatably connected between the front connecting seat and the main bearing seat; and a supporting rod is connected between the rear end of the upper connecting rod and the front end of the lower connecting rod. The four-connecting-rod structure is characterized in that the supporting rod comprises a pipe sleeve and a rod; one part of the pipe sleeve and the rod is connected with the rear end of the upper connecting rod; the other part of the pipe sleeve and the rod is connected with the front end of the lower connecting rod; and the free end of the rod extends into the pipe sleeve and is lap-jointed with the pipe sleeve into a whole, and then the outer part of the free end of the rod is sheathed with a spring.

Description

Four-linkage structure for semi-automatic folding moped

(1) technical field

The utility model relates to the morpet technical field, is specially four-linkage structure for semi-automatic folding moped.

(2) background technology

Existing folding bicycle, it comprises vehicle frame, assembly, front-wheel, the trailing wheel with expansion and folder function, the electric-control system that is arranged on the saddle on the vehicle frame and drives front-wheel or trailing wheel.For the ease of carrying, reduce storage space, existing folding bicycle, its vehicle frame adopts one or more foldable structure, realizes folder function, in its folding or expansion process, the four-bar linkage structure that constitutes vehicle frame plays a major role, in the existing folded bicycle, its four-bar linkage structure comprises preceding Connection Block, primary load bearing seat, boxed rod, lower link, is rotationally connected between the equal and described preceding Connection Block in the two ends of described boxed rod and lower link two ends, the primary load bearing seat; Between the front end of the rear end of boxed rod and lower link, be connected with strut bar, described strut bar be rotationally connected with boxed rod, lower link or with boxed rod, lower link in one slidably be connected.In these two kinds of structures, the former does not have the function of damping, and the latter does not have auto-lock function, and in the use, because of external factor causes the car auto-folder, safety is bad easily.

(3) summary of the invention

At above-mentioned technological deficiency, the utility model provides four-linkage structure for semi-automatic folding moped, has the function of damping, self-locking when it has supporting role, and safety is better.

Its technical scheme is such: it comprises preceding Connection Block, primary load bearing seat, boxed rod, lower link, is rotationally connected between the equal and described preceding Connection Block in the two ends of described boxed rod and lower link two ends, the primary load bearing seat; Between the front end of the rear end of boxed rod and lower link, be connected with strut bar, it is characterized in that: strut bar comprises pipe box, bar, parts in described pipe box, the bar are connected with the rear end of described upper connecting rod, another parts in described pipe box, the bar are connected with the front end of described lower connecting rod, and the free end of described bar stretches into pipe box and overlaps its outer cover of back that is connected as a single entity with described pipe box spring is housed.

After the utility model adopts said structure, strut bar is divided into pipe box, bar, both fits, the setting of external springs, guaranteed the adjustable of strut bar length on the one hand, prevented again that on the other hand the length transition from being transferred, has an auto-lock function like this, and when reach length of spring compressed to greatest extent the time, the application force major part of four connecting rods is absorbed by spring, can play the effect of damping like this, thereby avoided in the prior art, it can only play a supportive role, and can not possess the function of self-locking and damping simultaneously, the shortcoming of poor stability.

(4) description of drawings

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

(5) specific embodiment

See Fig. 1, the utility model comprises preceding Connection Block 1, primary load bearing seat 5, boxed rod 2, lower link 3, is rotationally connected between the equal and preceding Connection Block 1 in the two ends of boxed rod 2 and lower link 3 two ends, the primary load bearing seat 5; Between the front end of the rear end of boxed rod 2 and lower link 3, be connected with strut bar, the improvements of this structure are: strut bar comprises pipe box 6, bar 7, parts in pipe box 6, the bar 7 are connected with the rear end of upper connecting rod 2, another parts in pipe box 6, the bar 7 are connected with the front end of lower connecting rod 3, and the free end of bar 7 stretches into pipe box 6 and overlaps its outer cover of back that is connected as a single entity with pipe box 6 spring 4 is housed.Among Fig. 1, pipe box 6 is connected with the rear end of upper connecting rod 2, and bar 7 is connected with the front end of lower connecting rod 3.

When needs are folding, boxed rod 2 in the four-bar linkage structure, lower link 3 rotate respectively and between the preceding Connection Block 1, primary load bearing seat 5, the free end of pipe box 6, bar 7 progressively separates in the strut bar, strut bar length overall lengthening, at this moment, spring stress, so folding application force that need overcome spring, so spring has auto-lock function, prevent that unexpected factor from causing the car under the enforcement state folding suddenly, strengthened the safety of car; When being in deployed condition, strut bar in the four-bar linkage structure is in the pretension state, the function that has self-locking simultaneously, because the strut bar total length can be regulated with car motion, this sample car is expert at and is made under the state, because jolting of causing of the injustice of road, vehicle frame has some trace and receives or put, vehicle frame in changing like this can absorb some energy, thereby can alleviate the vibration amplitude of car, thereby gives by bike personnel with buffer action.

Folding and spread apart for the ease of vehicle frame, in when four-bar linkage structure is installed on vehicle frame, the place of being rotationally connected of boxed rod 2 and preceding Connection Block 1 is positioned at the be rotationally connected top at place of lower link 3 and preceding Connection Block 1, and the place of being rotationally connected of boxed rod 2 and primary load bearing seat 5 is positioned at the top that lower link 3 and primary load bearing seat 5 are rotationally connected and locate; Lower link 3 is positioned at the back chain stay of vehicle frame and the place ahead that primary load bearing seat 5 is rotationally connected and locates with the place of being rotationally connected of primary load bearing seat 5, the place of being rotationally connected of primary load bearing seat 5 and lower link 3 is positioned at the be rotationally connected top at place of lower link 3 and the flexible power-assisted pull bar of vehicle frame, the place of being rotationally connected of flexible power-assisted pull bar and back chain stay be positioned at primary load bearing seat 5 with after the chain stay top that is rotationally connected and locates.Flexible power-assisted pull bar is the back chain stay link of lower link and vehicle frame, and primary load bearing seat 5 is installed on the back chain stay of vehicle frame, does not express among the figure.

Claims

1. four-linkage structure for semi-automatic folding moped, it comprises preceding Connection Block, primary load bearing seat, boxed rod, lower link, the two ends of described boxed rod and lower link two ends equal and described before be rotationally connected between the Connection Block, primary load bearing seat; Between the front end of the rear end of boxed rod and lower link, be connected with strut bar, it is characterized in that: strut bar comprises pipe box, bar, parts in described pipe box, the bar are connected with the rear end of described upper connecting rod, another parts in described pipe box, the bar are connected with the front end of described lower connecting rod, and the free end of described bar stretches into pipe box and overlaps its outer cover of back that is connected as a single entity with described pipe box spring is housed.