Foldable stroller and vehicle frame thereof
The utility model relates to a kind of perambulator, relates in particular to a kind of foldable stroller and vehicle frame thereof.
Perambulator is a kind of infant indispensable instrument of going on a journey.User outside firm, the safe basic demand of pursuing perambulator, the feature such as the volume of more and more paying attention to perambulator is little, light, collapsible.The perambulator that possesses above feature, can be placed in car trunk at an easy rate, on the bus or train of trip, also can reduce the volume that it takies, thereby can greatly facilitate trip and carry.Foldable baby carriage structure is also very many, and the purpose of this utility model is to provide a kind of new folding structure.
Summary of the invention
In order to overcome the problems referred to above, the utility model provides a kind of foldable stroller vehicle frame simple in structure, easy to use.
The technical solution of the utility model is to provide a kind of foldable stroller vehicle frame, it comprises push rod, it is characterized in that: the middle part pivotal joint of described push rod has rear wheel support, the free end of described rear wheel support is provided with roller, described rear wheel support middle part pivotal joint has front-wheel support, the free end of described front-wheel support is provided with roller, and one end pivotal joint of described push rod has push rod connecting rod, and the free end pivot of described push rod connecting rod is connected to described front-wheel support middle part.
Preferably, it also comprises a front-wheel support connecting rod, and the two ends difference pivotal joint of described front-wheel support connecting rod is on described front-wheel support and rear wheel support.
Preferably, be socketed movably a sliding sleeve on described rear wheel support, described front-wheel support pivotal joint is on described sliding sleeve.
Preferably, on described sliding sleeve, be provided with one and described sliding sleeve can be fixed on to the binding bolt of described rear wheel support optional position.
Preferably, described push rod connecting rod is arc.
Preferably, the free end of described push rod is provided with handle.
The utility model also provides a kind of perambulator, it comprise two described in foldable stroller vehicle frame, described in two, foldable stroller vehicle frame is symmetrical arranged, and connects by some crossbeams.
Preferably, described in two, between push rod, be provided with a root and stem of certain plants.
Foldable stroller Vehicle Frame Design of the present utility model one folding quadrilateral structure, and utilize sliding sleeve to realize the locking and unlocking.Corresponding perambulator, in the process of using, only need to screw or unclamp that a binding bolt can use or folding.The utlity model has simple in structure, facilitate the advantages such as easy-to-use, volume after folding is little.
Accompanying drawing explanation
Fig. 1 is the structural representation of the perambulator of the utility model most preferred embodiment;
Fig. 2 is the structural representation of semi-collapsed condition of the perambulator of the utility model most preferred embodiment;
Fig. 3 is the structural representation of complete folded state of the perambulator of the utility model most preferred embodiment.
In figure: 1 front-wheel support; 2 rear wheel supports; 3 push rods; 4 front-wheel support connecting rods; 5 sliding sleeves; 6 handles; 7 push rod connecting rods; 8 front-wheels; 9 trailing wheels; 10 root and stem of certain plants.
The specific embodiment
Below the specific embodiment of the present utility model is described in further detail.
As shown in Figure 1 to Figure 3, a kind of foldable stroller vehicle frame of the present utility model comprises the push rod 3 of long rod.The middle part pivotal joint of push rod 3 has rear wheel support 2, and the free end of rear wheel support 2 is provided with roller (being trailing wheel 9).On rear wheel support 2, be socketed movably a sliding sleeve 5, sliding sleeve 5 head lamp brush guard pivots are connected with front-wheel support 1, and the free end of this front-wheel support 1 is provided with roller (being front-wheel 8).One end of push rod 3 arranges handle 6, the push rod connecting rod 7 of other end pivotal joint one arc, and the other end pivotal joint of this push rod connecting rod 7 is at front-wheel support 1 middle part.Push rod 3, rear wheel support 2, front-wheel support 1 and a deformable quadrilateral structure of push rod connecting rod 7 common formations, the common folder function of realizing as shown in Figures 2 and 3.It also comprises a front-wheel support connecting rod 4, and its two ends difference pivotal joint is on front-wheel support 1 and rear wheel support 2, in order to stablize this quadrilateral structure.A binding bolt (not shown) is threaded on sliding sleeve 5, the head of binding bolt can be resisted against on rear wheel support 2 through sliding sleeve 5, binding bolt can be fixed on sliding sleeve 5 rear wheel support 2 optional positions like this, thereby makes above-mentioned quadrilateral structure dimensionally stable, so that perambulator normally uses; Unclamp after binding bolt, to pressing down handle 6, sliding sleeve 5 is moved down along rear wheel support 2, thereby can be folded to the semi-collapsed condition of Fig. 2, continuing to press down can be to the full folded state of Fig. 3.
And perambulator of the present utility model comprises the vehicle frame of two symmetries, between two vehicle frames, by some crossbeams (not shown), connect, between two push rods 3, can fix or be mounted slidably a root and stem of certain plants 10, be convenient to child and take.
Above embodiment is only the utility model a kind of embodiment wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.