Children trolley
Technical field
The utility model relates to a kind of children trolley.
Background technology
The children trolley of prior art, it comprises front-wheel support, rear wheel support, side handrail, seat bar, back support bar etc., and back support bar is arranged on the pulling handle rod usually, can be inconvenient when like this cloth cover being installed on back support bar, and when go-cart was folding, pulling handle rod operated heavier.
Summary of the invention
The children trolley that provides a kind of back support bar and pulling handle rod to be separated is provided the purpose of this utility model.
In order to reach above purpose, the technical solution adopted in the utility model is: a kind of children trolley, comprise go-cart vehicle frame, the front component that is arranged on described go-cart vehicle frame both sides lower front, the wheel assembly that is arranged on described go-cart vehicle frame both sides lower rear with open mode and folded state, be arranged on the described go-cart vehicle frame and be used to make described go-cart vehicle frame stably to be in the lockout mechanism of open mode or folded state, described go-cart vehicle frame comprises
Front-wheel support;
Rear wheel support;
Side handrail, parts rotate with the another one parts and are connected in the rearward end of described side handrail, described front-wheel support, three parts of the leading section of described rear wheel support, and the 3rd parts rotate with at least one parts in two other parts and are connected;
Pulling handle rod, described pulling handle rod rotate with the rearward end of described side handrail and are connected;
The setting that rotates of seat bar, the leading section of described seat bar and described front-wheel support;
The setting that rotates of back support bar, the rearward end of the bottom of described back support bar and described seat bar;
The setting that rotates of first connecting rod, an end of described first connecting rod and described seat bar, the other end of described first connecting rod and the described rear wheel support setting that rotates;
The setting that rotates of second connecting rod, the upper end of described second connecting rod and described side handrail, the bottom of described second connecting rod and the described first connecting rod setting that rotates;
The setting that rotates of third connecting rod, an end of described third connecting rod and described pulling handle rod, the other end of described third connecting rod and the described rear wheel support setting that rotates.
Described go-cart vehicle frame also comprises the basketry bar, the setting that rotates of the end of described basketry bar and described rear wheel support.
Being rotationally connected of described third connecting rod and described pulling handle rod a little is positioned at be rotationally connected a little below of described pulling handle rod and described side handrail.
The turning cylinder that turning cylinder that described first connecting rod and described rear wheel support are rotationally connected and described third connecting rod and described rear wheel support are rotationally connected is identical.
Any one parts rotates with two other parts and is connected in the rearward end of described side handrail, described front-wheel support, three parts of the leading section of described rear wheel support.
Rearward end that being rotationally connected of described first connecting rod or described third connecting rod and described rear wheel support a little is positioned at described side handrail or described front-wheel support and the described rear wheel support below a little that is rotationally connected.
Described lockout mechanism is arranged between the bottom and described rear wheel support of described pulling handle rod.
Described lockout mechanism comprises the slide block that is slidingly arranged in described pulling handle rod bottom, be opened on the described rear wheel support and the groove that matches with slide block is formed.
Because the utility model has adopted above technical scheme, its advantage is: in the children trolley, the bottom of back support bar only rotates with the rearward end of seat bar and is connected, its connection mode is independent of pulling handle rod, one end of seat bar rotates with front-wheel support and is connected, the other end is rotated and is arranged on the first connecting rod, and an end of first connecting rod is rotatably connected on the rear wheel support, when the go-cart vehicle frame is in open mode, the seat bar and the back support bar at carrying seat stably are between first connecting rod and the front-wheel support, first connecting rod relies on rear wheel support and second connecting rod stably to open simultaneously, when folding, unlock lock mechanism, pulling handle rod is downward, drive third connecting rod generation interlock, then drive second connecting rod and first connecting rod and make front-wheel support, rear wheel support and side handrail are finished corresponding folding, this go-cart body frame structure for automotive is stable, back support bar forms an integral body of carrying the seat with the seat bar simultaneously, can design a complete cloth cover is installed on it, easy for installation, and when go-cart was folding, independent pulling handle rod operated lighter.
Description of drawings
Master when accompanying drawing 1 is in open mode for go-cart vehicle frame in the utility model looks cutaway view;
Front view when accompanying drawing 2 is in open mode for go-cart vehicle frame in the utility model;
Front view when accompanying drawing 3 is in semi-collapsed condition for go-cart vehicle frame in the utility model;
Accompanying drawing 4 is the front view during complete folded state for go-cart vehicle frame in the utility model is in;
Wherein: 1, go-cart vehicle frame; 2, front component; 3, wheel assembly; 4, front-wheel support; 5, rear wheel support; 6, side handrail; 7, pulling handle rod; 8, seat bar; 9, first connecting rod; 10, second connecting rod; 11, third connecting rod; 12, back support bar; 13, basketry bar; 14, lockout mechanism.
The specific embodiment
Further set forth concrete structure of the present utility model and folding process below in conjunction with accompanying drawing.
Shown in accompanying drawing 1-4, a kind of children trolley, comprise go-cart vehicle frame 1 with open mode and folded state, be arranged on the front component 2 of described go-cart vehicle frame 1 both sides lower front, be arranged on the wheel assembly 3 of described go-cart vehicle frame 1 both sides lower rear, be arranged on the described go-cart vehicle frame 1 and be used to make described go-cart vehicle frame 1 stably to be in the lockout mechanism 14 of open mode or folded state, described go-cart vehicle frame 1 comprises front-wheel support 4, rear wheel support 5, side handrail 6, pulling handle rod 7, seat bar 8, back support bar 12, first connecting rod 9, second connecting rod 10, third connecting rod 11, basketry bar 13, described side handrail 6, the rearward end of described front-wheel support 4, any one parts and two other parts homogeneous phase are rotationally connected in three parts of the leading section of described rear wheel support 5, described pulling handle rod 7 rotates with the rearward end of described side handrail 6 and is connected, the setting that rotates of the leading section of described seat bar 8 and described front-wheel support 4, the setting that rotates of the rearward end of the bottom of described back support bar 12 and described seat bar 8, the setting that rotates of one end of described first connecting rod 9 and described seat bar 8, the setting that rotates of the other end of described first connecting rod 9 and described rear wheel support 5, the setting that rotates of the upper end of described second connecting rod 10 and described side handrail 6, the setting that rotates of the bottom of described second connecting rod 10 and described first connecting rod 9, the setting that rotates of one end of described third connecting rod 11 and described pulling handle rod 7, the setting that rotates of the other end of described third connecting rod 11 and described rear wheel support 5, the end of described basketry bar 13 and described rear wheel support 5 setting that rotates.
In the present embodiment, described third connecting rod 11 and being rotationally connected of described pulling handle rod 7 a little are positioned at be rotationally connected a little below of described pulling handle rod 7 and described side handrail 6.Turning cylinder that described first connecting rod 9 and described rear wheel support 5 are rotationally connected and described third connecting rod 11 are identical with the turning cylinder that described rear wheel support 5 is rotationally connected, and all are positioned at be rotationally connected a little below of the rearward end of described side handrail 6 or described front-wheel support 4 and described rear wheel support 5.
The lockout mechanism 14 of present embodiment is arranged between the bottom and described rear wheel support 5 of described pulling handle rod 7, described lockout mechanism 14 comprises the slide block that is slidingly arranged in described pulling handle rod 7 bottoms, be opened on the described rear wheel support 5 and the groove that matches with slide block composition, when wanting Folding trolley vehicle frame 1, elder generation's unlock lock mechanism 14, as shown in Figure 3, slide block breaks away from groove, pulling handle rod 7 moves downward forward, driving third connecting rod 11 earlier rotates, this moment pulling handle rod 7, third connecting rod 11, side handrail 6, rear wheel support 5 forms a four-bar linkage structure, first connecting rod 9, second connecting rod 10, seat bar 8, front-wheel support 4 forms the another one four-bar linkage structure, it is folding that the interlock of each rod member makes go-cart vehicle frame 1 finish, folding process as shown in Figure 3, final folded state as shown in Figure 4, this go-cart vehicle frame 1 Stability Analysis of Structures, and the bottom of back support bar 12 only rotates with the rearward end of seat bar 8 and is connected, its connection mode is independent of pulling handle rod 7, shown in accompanying drawing 1 or 2, one end of seat bar 8 rotates with front-wheel support 4 and is connected, the other end is rotated and is arranged on the first connecting rod 9, and an end of first connecting rod 9 is rotatably connected on the rear wheel support 5, when go-cart vehicle frame 1 is in open mode, the seat bar 8 and the back support bar 12 at carrying seat stably are between first connecting rod 9 and the front-wheel support 4, first connecting rod 9 relies on rear wheel support 5 and second connecting rod 10 stably to open simultaneously, when folding, unlock lock mechanism 14, pulling handle rod 7 is downward, drive third connecting rod 11 interlock takes place, then drive second connecting rod 10 and first connecting rod 9 and make front-wheel support 4, rear wheel support 5 and side handrail 6 are finished corresponding folding, back support bar 12 forms an integral body of carrying the seat with seat bar 8 in this structure, can design a complete cloth cover is installed on it, easy for installation, and when go-cart was folding, independent pulling handle rod 7 operated lighter.