CN2315003Y

CN2315003Y - Foldable children cart

Info

Publication number: CN2315003Y
Application number: CN 97241693
Authority: CN
Inventors: 杨孟平
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-30
Filing date: 1997-12-30
Publication date: 1999-04-21
Anticipated expiration: 2007-12-30

Abstract

The utility model relates to a folding baby carriage, comprising a carriage frame, a carriage seat and wheels, wherein, a locking mechanism is arranged on the carriage frame, the carriage frame is composed of a supporting frame for a front leg and a supporting frame for a rear leg which are symmetrical to each other, wherein, the supporting frame for a front leg is formed by four-bar linkage mechanisms, and a U-shaped frame for a front leg is hinged with a reversed U-shaped hand push rod through an upper connecting rod and a lower connecting rod to form each of the four-bar linkage mechanisms; the supporting frame for a rear leg is formed by four-bar linkage mechanisms, and a U-shaped rear leg is hinged with the hand push rod through the upper connecting rod and a swing rod to form each of the four-bar linkage mechanisms. The utility model has the advantages of favorable folding performance, simple and compact structure, and favorable rigidity of the carriage frame.

Description

A kind of foldable stroller

The utility model relates to a kind of foldable stroller, relates in particular to the body frame structure for automotive of foldable stroller, and it has rational in infrastructure, the characteristics that in-use performance is more excellent.

Had the foldable stroller of several different structures in the prior art, wherein some perambulator handspike when folding rotates to the back lower place, and the vehicle frame after folding is long, and contractibility is poor and big, to using and casing to transport and all brought inconvenience.A kind of foldable chassis of perambulator is disclosed in Chinese patent CN2118676U, this vehicle frame mainly is formed by connecting by front and back bearing bar and under-carriage by two symmetrical quadrangle framves, wherein handspike is connected with rear linking rod, handspike overturns to the front lower place during this vehicle frame folding, folding convenient is laborsaving, and the vehicle frame volume after folding is also less.Yet the structure of this vehicle frame is comparatively complicated and compact inadequately.

The purpose of this utility model is to overcome the weak point of above-mentioned existence and provides a kind of folding property good, foldable stroller simple and compact for structure.

The technical scheme that realizes the utility model purpose is as follows: it includes the wheel of vehicle frame, vehicle seat and bottom of frame, vehicle frame is provided with lockout mechanism, its difference is that vehicle frame is interconnected by leg support before medianly zygomorphic and back leg support and forms, wherein preceding leg support is made of by the four-bar linkage that upper and lower connecting

rod

7,4 and inverted U-shaped handspike 10 are hinged U-shaped front leg 6, and back leg support is made of by the four-bar linkage that boxed rod 7 and fork 2 and inverted U-shaped handspike 10 are hinged U-shaped back leg 1.

Press such scheme, wheel 5 can directly be installed in both sides below the forward and backward leg frame of U-shaped, lockout mechanism on the vehicle frame is by being provided with swing hook 3 and the button pin constitutes between fork 2 and U-shaped back leg 1, the adjacent two articulated bracket length sums of angle＜90 ° all equate in two four-bar linkages.

The utility model is basic bar with handspike and boxed rod, be hinged with the forward and backward leg frame of U-shaped respectively by lower link and fork, constitute a handspike and turn over the formula folding stand before the upset of front lower place, the linkage of vehicle frame is strong, only need unclamp lockout mechanism push-and-pull handspike during use and whole vehicle frame is shunk and expansion, not only use very convenient, laborsaving, and all rod members are drawn close to the U-shaped back leg when folding, and the vehicle frame wheel merges together, contractibility is good, and volume is little; Vehicle frame of the present utility model is formed by bridge and other connecting rod assembly of three U-shapeds, and is simple and compact for structure, more becomes rationally, and laterally connects firmly the good rigidly of car load.

Fig. 1 is the front elevation of an embodiment of the utility model.

Fig. 2 is the birds-eye view of Fig. 1.

Fig. 3 is the state diagram in the utility model folding process.

Fig. 4 is the block diagram of an embodiment of the utility model.

An embodiment of the present utility model such as Fig. 1,2,3, shown in 4, has an inverted U-shaped handspike 10, the middle part of handspike and both sides, lower end hinged respectively boxed rod 7 and lower link 4 as handrail, on, the other end of lower link and U-shaped front leg 6 are hinged, leg support before a four-bar linkage that forms constitutes, on boxed rod 7, also be hinged with to back lower place bevelled U-shaped back leg 1, the middle and lower part of U-shaped back leg is hinged with a fork that makes progress 2, the other end of fork 2 is hinged with the lower end of handspike 10 and the hinged place of lower link 4, form another four-bar linkage and constitute the back leg support, before, back leg support is that basic bar is connected and is combined into vehicle frame with handspike and boxed rod, in above-mentioned two four-bar linkages, the long sum of adjacent two articulated brackets that angle equals (≤) 90 ° for a short time all equates, fork 2 is provided with swing hook 3, button pin phase configuration on swing hook and the U-shaped back leg, constitute lockout mechanism, below vehicle frame before the U-shaped, the both sides, below of back leg are installed on 4 wheels 5, front and back are hinged with front roll bar 8 and back fork 9 between the left and right sides boxed rod 7 in vehicle frame, before making, the synchronous swing of back fork, the movable cradle supporting plate 12 that connects between them, cradle supporting plate and cradle 11, link, constitute movable vehicle seat thus, cradle is a kind of folding cradle.Back rest can be done after dig at its rear portion, lockout mechanism and vehicle frame phase configuration can be established on the cradle.The utility model can be installed universal wheel under forward and backward leg frame, mount a pocket on vehicle frame, makes it become a go-kart, makes to the utlity model has multiple function.Each rod member of the present utility model can form with the circular or oval steel tube bending of rectangle.

Claims

1, a kind of foldable stroller, include the wheel of vehicle frame, vehicle seat and bottom of frame, also be installed on lockout mechanism on the vehicle frame, it is characterized in that vehicle frame is interconnected by leg support before medianly zygomorphic and back leg support forms, wherein preceding leg support is made of by the four-bar linkage that upper and lower connecting rod (7), (4) and inverted U-shaped handspike (10) are hinged U-shaped front leg (6), the four-bar linkage formation that back leg support is hinged by boxed rod (7) and fork (2) and inverted U-shaped handspike (10) by U-shaped back leg (1).

2,, it is characterized in that the long sum of adjacent two articulated brackets of in two four-bar linkages angle＜90 ° all equates by the described foldable stroller of claim 1.

3, by claim 1 or 2 described foldable strollers, it is characterized in that wheel (5) is directly installed in both sides below the forward and backward leg frame of U-shaped.

4, by claim 1 or 2 described foldable strollers, it is characterized in that fork (2) is provided with swing hook (3), the button pin phase configuration on swing hook and the U-shaped back leg constitutes lockout mechanism.

5, by claim 1 or 2 described foldable strollers, be hinged with front roll bar (8) and back fork (9) before and after it is characterized in that in vehicle frame between the left and right sides boxed rod (7), the movable cradle supporting plate (12) that connects between them, cradle supporting plate and cradle (11) link, and constitute movable vehicle seat.