CN100588582C - A collapsible stroller for children - Google Patents

Abstract

A foldable children's stroller, the frame of the stroller includes symmetrical side brackets and seats on both sides, the side brackets include front wheel brackets, rear wheel brackets and push handle rods, the upper end of the rear wheel bracket, push handle rods The lower ends of the front wheel brackets are rotatably connected to the rear ends of the front wheel brackets, and the brackets on both sides are connected by cross brackets. Sliders are arranged on the front wheel brackets to slide along its length, and the cross brackets are composed of first rods and cross brackets. The second rods intersect each other and are pivotally connected at the intersections. The two front ends of the cross brace are respectively connected to the sliders, and the two rear ends are respectively connected to the brackets on both sides. The lower end of the push bar The first connecting rod is fixedly connected to the sliding member, the upper end of the rear wheel bracket is fixedly connected to the sliding member through the second connecting rod, the rear end of the seat post constituting one side of the seat is rotatably connected to the side bracket, and The seatpost is fixedly connected with the first connecting rod on the same side. The invention has the advantages of convenient folding, small folding volume and low cost.

Description

A foldable stroller for children

technical field

The invention relates to a foldable stroller for children.

Background technique

The foldable children's stroller is mainly realized by setting a stroller frame having an open state and a folded state. In order to realize the function of folding, the main components that make up the stroller frame, such as the front wheel bracket, the rear wheel bracket, the side armrests, the push handle bar, etc., are arranged to rotate and connect with each other, and the specific structural designs are various. Designing a baby stroller that is easy to fold, small in size and low in cost is the goal pursued by the designers of the stroller, and it is also the key to making the stroller products competitive in the market.

In the prior art, although the foldable children's stroller disclosed in the utility model patent No. 200720041695.3 has the advantage of being small in size, the structure of the stroller is complicated, the rods are many, and the cost is high; while some commercially available children's strollers Although the cart has fewer rods, it is rather cumbersome to fold and has a large volume after folding.

Contents of the invention

The technical problem to be solved by the present invention is to provide a child stroller which is easy to fold, small in size and low in cost.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

A foldable children's pushchair, comprising a pushcart frame with an unfolded state and a folded state, a locking mechanism for locking the pushcart frame in the unfolded state, wherein the pushcart frame includes symmetrical side brackets located on both sides, The seat that is arranged between two described side supports, described side support comprises front wheel support, rear wheel support and push bar, the upper end of rear wheel support, the lower end of push bar are all connected with the rear end of front wheel support The two side brackets are connected by a cross bracket arranged between them. The front wheel bracket is slidably provided with a sliding piece along its length direction. The cross bracket is composed of a first rod and a second rod. The parts intersect and are pivotally connected at the intersection. The two front ends of the cross bracket are respectively connected to the slider through the first rotation joint, and the two rear ends are respectively connected to the two side brackets through the second rotation joint. , the lower end of the push handle rod is rotatably connected to the slider through the first connecting rod.

As a preferred embodiment of the present invention: the rear end of the front wheel bracket is provided with a connecting sleeve for connecting the lower end of the push handle bar and the upper end of the rear wheel bracket, and the two rear ends of the cross brace are connected to the connecting sleeve respectively. Rotational connection, the rear end of the seat post is rotatably arranged on the connecting sleeve.

The upper end of the rear wheel bracket is fixedly connected to the sliding member through the second connecting rod, the rear end of the seatpost constituting the side part of the seat is rotatably connected to the side bracket, and the seatpost slides along its length direction A sliding sleeve is arranged on the ground, and the sliding sleeve is also rotatably connected with the first connecting rod on the same side.

At least one foldable cross brace is arranged between the two rear wheel supports.

Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art:

1. The cart frame can be folded horizontally and vertically, and the folding volume is small;

2. Push the push handle forward, and the stroller can be folded horizontally and vertically at the same time, and the folding operation is easy;

3. The whole vehicle is simple to set up, less rods and low cost.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

Fig. 1 is a perspective view when the vehicle frame of the present invention is in an unfolded state;

Fig. 2 is the front view of Fig. 1;

Figure 3 is a perspective view of the vehicle frame of the present invention when it is in a half-folded state;

Fig. 4 is the front view of Fig. 3;

Figure 5 is a perspective view of the frame of the present invention when it is in a folded state;

Fig. 6 is the front view of Fig. 5;

Among them: 1. Front wheel bracket; 2. Rear wheel bracket; 3. Push handle bar; 4. Seat post; 5. Cross brace; 50. First rod; 51. Second rod; 6. Slider; 7. First connecting rod; 8. Second connecting rod; 9. Connecting sleeve; 10. First revolving joint; 11. Second revolving joint; 12. Cross brace; 13. Front wheel assembly; 14. Rear wheel assembly; 15, sliding sleeve.

Detailed ways

As shown in FIGS. 1 to 6 , the foldable baby stroller of this embodiment includes a stroller frame and a front wheel assembly 13 and a rear wheel assembly 14 arranged at the bottom front and bottom rear of the stroller frame. When the cart is not in use, it can be folded and stored, thereby reducing the occupied space and making it easy to carry; when in use, it is locked by the locking mechanism and is in a stable unfolded state.

As shown in Figure 1, the setting of the cart frame is simple and there are few rods. As shown in Fig. 3, the cart frame can be folded in the left and right directions (horizontal) and front and rear directions (longitudinal), and the folded volume is small. The specific settings of the cart frame with the above advantages are as follows:

The stroller frame mainly includes side supports on both sides and a seat arranged between the supports on both sides.

The side support includes a front wheel support 1 with a front wheel assembly 13 at the lower end, a rear wheel support 2 with a rear wheel assembly 14 at the lower end, and a push handle bar 3 . The rear end of the front wheel bracket 1 is fixedly provided with a connecting sleeve 9, and the upper end of the rear wheel bracket 2 and the lower end of the push handle bar 3 are simultaneously arranged at the connecting sleeve 9, and the upper end of the rear wheel bracket 2, the push handle bar The lower ends of 3 are all relatively rotatably connected to the rear end of the front wheel bracket 1, and a locking mechanism (not shown) that locks the three parts is provided at the position, and the locking mechanism can be any known method that can realize the locking function , which will not be described in detail here. In this way, when the locking mechanism is in an unlocked state, the push bar 3 and the rear wheel bracket 2 can rotate relative to the front wheel bracket 1 so as to be folded longitudinally.

The important improvement of this embodiment is that the side brackets on both sides are connected by cross brackets 5 . The cross brace 5 is formed by intersecting the first rod 50 and the second rod 51 and being pivotally connected at the intersection. 50 and the front end of the second rod 51 are respectively rotatably connected with the sliding member 6 via the first rotary joint 10 , and their rear ends are respectively rotatably connected with the connecting sleeve 9 via the second rotary joint 11 . In addition, a foldable cross brace 12 is arranged between the two rear wheel brackets 2 . The setting of cross brace 5 and cross brace 12 is under the premise of ensuring the stability of the vehicle frame, so that the two side brackets are folded along with the folding of cross brace 5 and cross brace 12, and are folded along with the opening of cross brace 5. Open so that the stroller frame can be folded in the transverse direction.

As shown in the figure, a first connecting rod 7 is rotatably connected between the lower end of the push rod 3 and the slider 6, so that when the push rod 3 is pushed, the thrust acts on the slider 6 and finally drives the cross brace 5 fold. At the same time, a second connecting rod 8 is rotatably connected between the rear wheel bracket 2 and the slider 6. Therefore, when the slider 6 slides forward, the rear wheel bracket 2 will be retracted towards the direction of the front wheel bracket 1. And finally reach the folded state as shown in FIG. 5 .

The seat is an important part of the stroller, and many stroller seats cannot be folded. In this embodiment, as shown in FIG. 3 , the seat post 4 on both sides of the seat can be folded. The rear end of the seat post 4 is rotatably connected to the connecting sleeve 9, and a sliding sleeve 15 is slidably arranged on the seat post 4 along its length direction, and the sliding sleeve 15 is also rotatably connected to the first connecting rod 7 on the same side, In this way, when the lower end of the first connecting rod 7 slides forward, the seat post 4 moves downward and is folded.

The present invention has been described in detail above. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the invention. The specification and drawings are to be regarded as illustrative rather than restrictive.

Claims (4)

1, a kind of folding children's barrow, comprise go-cart vehicle frame with deployed condition and folded state, be used for the lockout mechanism of go-cart bracket locked in deployed condition, wherein the go-cart vehicle frame comprises and is positioned at the symmetrical side stand in both sides, be arranged on the seat between the two described side stands, described side stand comprises front-wheel support (1), rear wheel support (2) and pulling handle rod (3), the upper end of rear wheel support (2), the bottom of pulling handle rod (3) all rotates with the rearward end of front-wheel support (1) and is connected, it is characterized in that: two described side stands are connected by the cross support (5) that is arranged between them, its length direction of described front-wheel support (1) upper edge is provided with sliding part (6) slidably, described cross support (5) is intersected by first rod member (50) and second rod member (51) and connects and composes at the infall phase pivot, two leading sections of cross support (5) rotate by first rotary joint (10) with described sliding part (6) respectively and are connected, two rearward end rotate by second rotary joint (11) with two described side stands respectively and are connected, the bottom of described pulling handle rod (3) rotates with described sliding part (6) by head rod (7) and is connected, and the upper end of described rear wheel support (2) rotates with described sliding part (6) by second pipe link (8) and is connected.

2, a kind of folding children's barrow according to claim 1, it is characterized in that: described seat comprises the seat bar (4) that is positioned at both sides, the rearward end of described front-wheel support (1) is provided with the adapter sleeve (9) of the upper end of the bottom that is used to connect described pulling handle rod (3) and described rear wheel support (2), two rearward end of described cross support (5) rotate with described adapter sleeve (9) respectively and are connected, and the rearward end of described seat bar (4) rotates with described adapter sleeve (9) and is connected.

3, a kind of folding children's barrow according to claim 1, it is characterized in that: the rearward end that constitutes the seat bar (4) of described seat sidepiece rotates with described side stand and is connected, its length direction of seat bar (4) upper edge is provided with sliding sleeve (15) slidably, and this sliding sleeve (15) also rotates with the head rod (7) of homonymy simultaneously and is connected.

4, according to claim 1 or 2 or 3 described a kind of folding children's barrows, it is characterized in that: be provided with at least one folding stull (12) between the two described rear wheel supports (2).

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