Double stroller
Technical field
The present invention relates to a kind of carts, more particularly to a kind of double stroller.
Background technique
Double baby carriage in the prior art generally includes the vehicle frame with unfolded state and folded state, is set to vehicle
The front component and wheel assembly, the locking mechanism for being locked in vehicle frame under unfolded state of frame lower part, there are two vehicle frame tools
Seat mechanism.The vehicle frame of existing double stroller it is many kinds of, the number of vehicle frame rod piece is different, connects and closes between each rod piece
System, link position are different, so that folding principle is different with folding mode.It is limited by the structure of existing vehicle frame, current is double
The folding of people's cart be it is partially folded, the folded most of folding volumes of double stroller are all bigger, and occupied space is big, no
Portable and transport;Even if the double stroller for having a small number of folding volumes small, folding operation are also comparatively laborious, it usually needs through excessive
Step operation, can be only achieved complete folding.
Summary of the invention
The object of the present invention is to provide a kind of double strollers.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of double stroller, including with unfolded state and folded state vehicle frame, front component and wheel assembly, will be described
The locking mechanism of vehicle frame locking in the deployed state, the vehicle frame include the fore-stock and after-poppet, handle group positioned at two sides
The front seats mechanism and back seat mechanism of part, link assembly and front and back setting, before the lower end connection of the fore-stock is described
Wheel assembly, the lower end connection of the after-poppet wheel assembly, the upper end of the fore-stock and the upper end of after-poppet
Rotation connection, the link assembly include lower link and back link, and the front of the lower link and the fore-stock turn
Dynamic connection, the rear portion of the lower link and the after-poppet are rotatablely connected and can be in the length sides of the after-poppet
Upward sliding;The top of the back link and the push handle component are rotatablely connected, the lower part of the back link with it is described
After-poppet be rotatablely connected and can be slided on the length direction of the after-poppet, the front seats mechanism includes position
The front end of front stall bar, front rod in two sides, the rear end of the front stall bar and the lower link is rotatablely connected, before described
One end of connecting rod and the front stall bar are rotatablely connected, and the other end of the front rod and the fore-stock are rotatablely connected,
Make the front stall bar, front rod, fore-stock and lower link composition four-bar mechanism.
Preferably, the back seat mechanism includes the rear slide bar and rear backrest bar positioned at two sides, the rear slide bar
Upper end and the lower end of the rear backrest bar are rotatablely connected, and are arranged with and can be slided in its longitudinal direction on the rear slide bar
Sliding sleeve, the middle part of the sliding sleeve and the back link is rotatablely connected.
It is further preferred that the link assembly further includes upper connecting rod, first connecting rod and second connecting rod, described is upper
One end of connecting rod and the upper end of the back link are rotatablely connected, and the other end and the push handle component are rotatablely connected;Described
The top of first connecting rod and the rear slide bar are rotatablely connected, and lower part and the back link are rotatablely connected;Described second connects
One end of bar is rotatably connected on the first connecting rod, and the other end is connect with the rear end thereof of the lower link.
It is further preferred that the back seat mechanism includes the rear slide bar and rear backrest bar positioned at two sides, after described
The upper end of slide bar and the lower end of the rear backrest bar are rotatablely connected, and being arranged on the rear slide bar can be in its length direction
The middle part of the sliding sleeve of upper sliding, the sliding sleeve and the back link is rotatablely connected, the top of the first connecting rod and institute
The rear slide bar rotation connection stated.
It is further preferred that the back seat mechanism further includes can be in the rear backrest strut component of lateral folding, institute
The rear backrest strut component stated is connected between rear backrest bar described in two sides.
Preferably, the front seats mechanism further include positioned at two sides preceding back support bar and preceding handrail, can be in transverse direction
The front end of the preceding handrail of folding, the lower end of the preceding back support bar and the lower link is rotatablely connected, the preceding handrail
Front end and the preceding handrail be rotatablely connected, the rear end of the preceding handrail and the preceding back support bar are rotatablely connected, institute
The both ends for the preceding handrail stated are rotatablely connected with front stall bar described in two sides respectively, and the preceding handrail and the front stall bar
Turning point is located at the front of the turning point of the front rod and the front stall bar.
It is further preferred that the front seats mechanism further includes can be in the preceding backrest strut component of lateral folding, institute
The preceding backrest strut component stated is connected between preceding back support bar described in two sides.
Preferably, the push handle component includes upper push-rod and lower push-rod, the lower end of the upper push-rod and it is described under
The upper end of push rod is rotatablely connected, and the upper end of at least one in the lower end of the lower push-rod and the fore-stock and after-poppet turns
Dynamic connection, the top of the back link and the lower push-rod are rotatablely connected.
It is further preferred that the push handle component further includes can be in the handle of lateral folding, the handle connection
Between the upper end of upper push-rod described in two sides.
Preferably, the vehicle frame further includes back brace bar assembly, and the back brace bar assembly includes what middle part was rotatablely connected
The upper end of at least one in two rear poles, the front end of rear pole described in every and the fore-stock and after-poppet, which rotates, to be connected
It connects, the rear end of rear pole described in every is rotatablely connected with the after-poppet and can be in the length side of the after-poppet
Upward sliding.
Preferably, the sliding slot extended along its length is provided on the after-poppet, sliding is set in the sliding slot
It is equipped with sliding block, the rear portion of the lower link, the lower rotational of back link are connected on the sliding block.
Preferably, the vehicle frame further includes that can connect in the lower supporting rod component of lateral folding, the lower supporting rod component
It connects between the lower link described in two sides.
Preferably, when described from vehicle frame from unfolded state to when folded state conversion, the push-rod assembly turns downwards
After-poppet described in trend is drawn close, and the fore-stock rotates backward to be drawn close to the after-poppet, the front seats mechanism
It rotates forward and is drawn close to the fore-stock, the back seat mechanism rotates backward to be drawn close to the after-poppet, while two
Fore-stock described in side, after-poppet, push-rod assembly are drawn close to centre.
Preferably, when the vehicle frame is in folded state, the front component, wheel assembly the support vehicle
Frame is uprightly on the ground.
Due to the above technical solutions, the present invention has the following advantages over the prior art:
Double stroller of the invention simplifies folding step, and folding, folding convenient, and body after folding just can be rapidly completed in one hand
Product is extra small, carries, collects conveniently, practical.
Detailed description of the invention
Attached drawing 1 is that the double stroller of the present embodiment is in the perspective view of unfolded state;
Attached drawing 2 is the partial enlarged view one of the double stroller of the present embodiment;
Attached drawing 3 is the partial enlarged view two of the double stroller of the present embodiment;
Attached drawing 4 is that the double stroller of the present embodiment is in the main view of unfolded state;
Attached drawing 5 is that the double stroller of the present embodiment is in the perspective view of semi-collapsed condition;
Attached drawing 6 is that the double stroller of the present embodiment is in the main view of semi-collapsed condition;
Attached drawing 7 is that the double stroller of the present embodiment is in the perspective view of folded state;
Attached drawing 8 is that the double stroller of the present embodiment is in the main view of folded state;
Attached drawing 9 is that the double stroller of the present embodiment is in the side view of folded state.
Wherein: 10, front component;11, wheel assembly;20, fore-stock;21, after-poppet;210, sliding slot;211, sliding block;
220, upper push-rod;221, lower push-rod;222, handle;230, lower link;231, back link;232, upper connecting rod;233, first connecting rod;
234, second connecting rod;235, rear pole;236, lower supporting rod component;240, rear slide bar;241, rear backrest bar;242, rear backrest strut
Component;243, sliding sleeve;250, front stall bar;251, front rod;252, preceding back support bar;253, preceding handrail;254, preceding handrail;255,
Preceding backrest strut component;256, it rides;3, unlock piece.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
A kind of double stroller as shown in Figs 1-4, including with unfolded state and folded state vehicle frame, front component 10 and after
Wheel assembly 11, the locking mechanism by vehicle frame locking in the deployed state.Wherein:
Vehicle frame includes fore-stock 20 and after-poppet 21 positioned at two sides, push handle component, the front seats mechanism and back seat of front and back setting
Position mechanism.
The lower end of fore-stock 20 connects front component 10, and the lower end of after-poppet 21 connects wheel assembly 11, fore-stock 20
The front of upper end and 21 upper end of after-poppet is rotatablely connected by turning point a.
Push handle component includes the upper push-rod 220 and lower push-rod 221, handle 222 positioned at two sides, the lower end of upper push-rod 220 with
The upper end of lower push-rod 221 is rotatablely connected by turning point b, and the lower end of lower push-rod 221 and the rear portion of 21 upper end of after-poppet pass through turning point c
Rotation connection, handle 222 are connected between the upper end of upper push-rod 220 of two sides.
In the present embodiment: vehicle frame further includes link assembly, link assembly include positioned at two sides lower link 230, after connect
Bar 231, upper connecting rod 232, first connecting rod 233 and second connecting rod 234.Wherein:
The front of lower link 230 is rotatablely connected with fore-stock 20 by turning point d, and rear portion and the after-poppet 21 of lower link 230 pass through
Turning point e is rotatablely connected and can slide on the length direction of after-poppet 21.The top of back link 231 and lower push-rod 221 are logical
Turning point f rotation connection is crossed, the lower part of back link 231 and after-poppet 21 are rotatablely connected also by turning point e and can be in after-poppets
It is slided on 21 length direction.Therefore, in the present embodiment: the sliding slot extended along its length is provided on after-poppet 21
210, the interior sliding of sliding slot 210 is provided with sliding block 211, and the rear portion of lower link 230, the lower part of back link 231 pass through turning point e and rotate
It is connected on sliding block 211.One end of upper connecting rod 232 and the upper end of back link 231 are rotatablely connected by turning point g, upper connecting rod 232
The other end is rotatablely connected with upper push-rod 220 by turning point h, and turning point h is located at the top of turning point b on upper push-rod 220.First
The middle part of connecting rod 233 and one end of second connecting rod 234 are rotatablely connected by turning point i, the lower part of first connecting rod 233 and back link
231 are rotatablely connected by turning point j.The other end of second connecting rod 234 and the rear end of lower link 230 are rotatablely connected by turning point k.
In this way, fore-stock 20, after-poppet 21, lower link 230 and sliding block 211, after-poppet 21, lower push-rod 221, back link
231 are respectively formed Liang Zu slide link mechanism with sliding block 211;Upper push-rod 220, lower push-rod 221, back link 231, upper connecting rod 232,
Lower link 230, back link 231, first connecting rod 233, second connecting rod 234 are respectively formed two groups of four-bar mechanisms.
In the present embodiment: vehicle frame further includes back brace bar assembly, lower supporting rod component 236, and back brace bar assembly turns including middle part
Two rear poles 235 of dynamic connection, the front end of every rear pole 235 and the upper end of after-poppet 21 are rotatablely connected, every rear pole
235 rear end is rotatablely connected and can slide on the length direction of after-poppet 21 with after-poppet 21, after as shown in Figs 1-4
The rear end of strut 235 is also rotatably connected on sliding block 211.Lower supporting rod component 236 is connected between the lower link 230 of two sides.
Back seat mechanism includes the rear slide bar 240 and rear backrest bar 241, rear backrest strut component 242 positioned at two sides.After slide
The upper end of bar 240 and the lower end of rear backrest bar 241 are rotatablely connected, and are arranged with and can be slided in its longitudinal direction on rear slide bar 240
The middle part of dynamic sliding sleeve 243, sliding sleeve 243 and back link 231 is rotatablely connected, and the top of first connecting rod 233 and rear slide bar 240 rotate
Connection.Rear backrest strut component 242 is connected between the rear backrest bar 241 of two sides.Likewise, rear slide bar 240, back link 231,
Slide link mechanism is formed between first connecting rod 233 and sliding sleeve 243.
Front seats mechanism includes front stall bar 250, the front rod 251, preceding back support bar 252, preceding handrail 253 positioned at two sides,
Preceding handrail 254, preceding backrest strut component 255.The rear end of front stall bar 250 and the front end of lower link 230 are connected by turning point l rotation
It connects, the lower end of preceding back support bar 252 is rotatablely connected with the front end of lower link 230 by turning point m, one end of front rod 251 and front stall
Bar 250 is rotatablely connected by turning point n, and the other end of front rod 251 is rotatablely connected with fore-stock 20 by turning point o.Preceding handrail
253 front end is rotatablely connected with preceding handrail 254 by turning point p, and the rear end of preceding handrail 253 and preceding back support bar 252 pass through turning point q
Rotation connection, the both ends of preceding handrail 254 are rotatablely connected with the front stall bar 250 of two sides by turning point r respectively.Preceding backrest strut component
255 are connected between the preceding back support bar 252 of two sides.In addition, the front end connection foot-operated 256 of front stall bar 250.
It is front stall bar 250, preceding back support bar 252, preceding in this way, fore-stock 20, lower link 230, front stall bar 250, front rod 251
Handrail 253, preceding handrail 254 are respectively formed two groups of four-bar mechanisms.
In the present embodiment: handle 222, lower supporting rod component 236, rear backrest strut component 242, preceding leans on back brace bar assembly
Back up bar assembly 255, preceding handrail 254 can be in lateral foldings.Wherein: handle 222, preceding handrail 254 can be using such as Fig. 1,5
Shown in structure, lower supporting rod component 236, rear backrest strut component 242, preceding backrest strut component 255 can use cross
Structure.
Locking mechanism includes unlock piece 3, and unlock piece 3 can be set on handle 222, convenient for the operation of unlock.
When unlock, operation unlock piece 3 unlocks vehicle frame, and upper push-rod 220, lower push-rod 221 are pushed forward, it is rotated down
It is drawn close to after-poppet 21, fore-stock 21 rotates backward to be drawn close to after-poppet 21, and front seats mechanism rotates forward to be leaned on to fore-stock 21
Hold together, back seat mechanism rotates backward to be drawn close to after-poppet 21;Simultaneously handle 222, back brace bar assembly, lower supporting rod component 236, lean on afterwards
The lateral folding of back up bar assembly 242, preceding backrest strut component 255, preceding handrail 254, so that fore-stock 20, the after-poppet of two sides
21, upper push-rod 220 and lower push-rod 222 are drawn close to centre, as shown in Figure 5,6, until completing the complete folding of vehicle frame, are folded
Afterwards, front component 10, wheel assembly 11 support vehicle frame uprightly on the ground, as Figure 7-9.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.