CN202449031U - Foldable stroller - Google Patents

Abstract

The utility model discloses a foldable stroller. The foldable stroller comprises side supports and a seat rack, wherein the side supports are symmetrical on two sides and comprise front wheel supports, back wheel supports and push handle rods; the seat rack comprises symmetrical seat cushion rods on two sides; the foldable stroller further comprises sliding sleeves and a back cross brace; the sliding sleeves are arranged in the length directions of the back wheel supports; the front end parts of the front wheel supports on the two sides are connected in a rotating way; the back end parts of the front wheel supports on the two sides are connected with the sliding sleeves on the two sides in a rotating way respectively; the lower end parts of the push handle rods are connected with the upper end parts of the back wheel supports; the front parts of the seat cushion rods are connected with the front wheel supports in a rotating way; the back end parts of the seat cushion rods are connected with the back wheel supports in a rotating way; the seat rack further comprises bottom brace rods, of which the front end parts and the back end parts are connected with the seat cushion rods and the lower parts of the back wheel supports in a rotating way respectively; the back cross brace comprises a left brace rod, a right brace rod and a brace rod handle; one end part of the left brace rod and one end part of the right brace rod are connected with the sliding sleeves on the two sides in a rotating way respectively; and the other end parts of the left and the right brace rods are connected with two sides of the brace rod handle in a rotating way. The foldable stroller is novel in structural design and simple to fold.

Description

A collapsible stroller for children

technical field

The utility model relates to a foldable children's stroller.

Background technique

The foldable stroller is mainly realized by setting a stroller frame with 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 cushion bar, the push handle bar, etc., are arranged to rotate and connect with each other, and the specific structural designs are varied. 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.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a foldable children's stroller with novel structure, simple structure and convenient folding.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A foldable children's stroller, which includes a stroller frame with an unfolded state and a folded state, a locking mechanism for locking the stroller frame in the unfolded state, a front wheel assembly arranged at the bottom front of the stroller frame, The rear wheel assembly is arranged at the rear part of the bottom of the cart frame. The cart frame includes symmetrical side brackets located on both sides and a seat frame arranged between the two side brackets. The side bracket includes a front end with a front wheel The front wheel bracket of the assembly, the rear wheel bracket of the rear wheel assembly, and the push handle bar are arranged at the lower end, and the seat frame includes seat bars that are symmetrical on both sides. In particular, the foldable baby stroller also includes The sliding sleeve that is slidably arranged in the length direction of the rear wheel bracket is rotatably connected between the front ends of the front wheel brackets on both sides, and the rear end is respectively rotatably connected with the sliding sleeves on both sides; the lower end of the push bar is connected to the rear The upper end of the wheel support is connected, the front part of the seat bar is rotatably connected with the front wheel support, and the rear end is rotatably connected with the rear wheel support. Connected bottom struts; the foldable children's stroller also includes a rear cross brace arranged between the rear wheel brackets on both sides, the rear cross brace includes a left brace, a right brace and a brace handle, the left brace One end of the rod and the right strut are respectively rotatably connected to the sliding sleeves on both sides, while the other ends are rotatably connected to both sides of the strut handle respectively.

According to a further solution of the utility model: there are two bottom braces, and the front and rear ends of the two bottom braces are respectively connected to the seat cushion bars and the rear wheel brackets on opposite sides. Preferably, the front end of the bottom stay is rotatably connected to the front of the seat post. In a specific embodiment, the bottom support bar and the seat cushion bar are rotatably connected by L-shaped joints and rivets, and the bottom support bar and the rear wheel bracket are rotatably connected by U-shaped joints and rivets.

Preferably, the seat frame further includes symmetrical back bars located on both sides, the lower end of the back bar is rotatably connected to the connecting block fixed at the front of the seat bar.

Preferably, when the stroller frame is in the unfolded state, the sliding sleeve is located at the middle and lower part of the rear wheel bracket.

Also preferably, the push handle rod and the rear wheel bracket are relatively slidably arranged, for example, the lower end of the push handle rod is inserted into the lumen of the rear wheel bracket.

According to the utility model, the locking mechanism is used to realize that the whole stroller frame is in a stable unfolded state, and any known structure can be used to realize it. Not detailed here.

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

The structure design of the utility model is novel and simple. After unlocking the locking mechanism, pull up the pole handle to drive the sliding sleeve to slide upward on the rear wheel bracket. Get closer to complete the folding of the whole vehicle, and the folding operation is simple and smooth.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a foldable stroller for children according to the present invention when it is in an unfolded state;

Fig. 2 is the front schematic diagram of Fig. 1;

Fig. 3 is a three-dimensional schematic view of the foldable baby stroller in a folded state according to the present invention;

Fig. 4 is the front schematic diagram of Fig. 3;

Fig. 5 is a three-dimensional schematic view of the foldable stroller for children according to the present invention in a folded state;

Fig. 6 is a schematic front view of Fig. 5;

Among them: 1. Side support; 10. Front wheel support; 11. Rear wheel support; 12. Push bar; 2. Front wheel assembly; 3. Rear wheel assembly; 4. Seat frame; 40. Cushion bar; 42, backrest rod; 43, connection block; 5, sliding sleeve; 6, rear cross brace; 60, left brace; 61, right brace; 62, brace handle.

Detailed ways

As shown in Figures 1 and 6, the foldable children's stroller according to this embodiment mainly includes a stroller frame with an unfolded state and a folded state, a front wheel assembly 2, a rear wheel assembly 3, and a vehicle for maintaining the stroller frame in a The locking mechanism in the unfolded state (not shown in the figure), wherein the stroller frame mainly includes side brackets 1 located symmetrically on both sides, a seat frame 4 and a rear cross brace 6 arranged between the side brackets 1 on both sides. The main parts constituting the cart frame will be described in detail below.

As shown in FIGS. 1 and 2 , the side bracket 1 includes a front wheel bracket 10 , a rear wheel bracket 11 , and a handle rod 12 whose lower end is slidably inserted in the lumen of the rear wheel bracket 11 . The front end portions of the front wheel brackets 10 on both sides are rotationally connected with each other, and the front wheel assembly 3 is connected to the front end portions of the two front wheel brackets 10 . The middle and lower part of the rear wheel bracket 11 is sleeved with a sliding sleeve 5 that can slide along the length direction of the rear wheel bracket 11 . The rear end portion of the front wheel bracket 10 is rotatably connected with the sliding sleeve 5 through a pin.

The seat frame 4 includes a cushion bar 40 , a bottom support bar 41 and a back bar 42 located symmetrically on both sides. The front portion of the cushion bar 40 on each side is rotatably connected with the front wheel bracket 10 on the same side through U-shaped joints and rivets, and the rear end is rotatably connected with the rear wheel bracket 11 on the same side through U-shaped joints and rivets. The seat bar 40 is arranged obliquely downward from front to back. There are two bottom struts 41, and two bottom struts 41 are intersected. The bottom of the rear wheel bracket 11 on the other side is rotatably connected. The lower end (front end) of the backrest bar 42 is rotatably connected to the seat bar 40 through a connecting block 43 fixed at the front of the seat bar 40 . In addition, a plurality of connecting rods are connected between the backrest rods 42 on both sides.

The rear cross brace 6 is arranged between the middle and lower parts of the rear wheel brackets 11 on both sides. The rear cross brace 6 is composed of a left brace 60 , a right brace 61 and a brace handle 62 . One end of the left strut 60 and the right strut 61 are respectively rotatably connected to the sliding sleeves 5 on both sides, while the other ends are rotatably connected to both sides of the strut handle 62 respectively.

The foldable children's stroller of the present utility model is very simple and smooth in operation from the unfolded state to the folded state, as follows: first unlock the lock of the locking mechanism, and then pull up the pole handle 62 to drive the sliding sleeve 5 on the rear wheel bracket 11, and at the same time, the cushion bar 40, the bottom stay 41 and the front wheel bracket 10 contract and move closer to the rear wheel bracket 11. When the locking between the rods is released, the rear wheel support 11 moves relatively upwards, so that all parts of the push bar 12 are retracted into the tube chamber of the rear wheel support 11, and the folding of the whole vehicle is completed. As shown in Figures 5 and 6, the folded trolley has a greatly reduced transverse width and a relatively low longitudinal height.

The utility model has been described in detail above, and its purpose is to allow those familiar with the technology in this field to understand the content of the utility model and implement it, and can not limit the protection scope of the utility model. All equivalent changes or modifications made in essence shall fall within the protection scope of the present utility model .

Claims (8)

1. A foldable children's stroller, which includes a stroller frame with an unfolded state and a folded state, a locking mechanism for locking the pushcart support in the unfolded state, a bottom front part arranged at the bottom of the pushcart frame The front wheel assembly (2), the rear wheel assembly (3) arranged at the bottom rear of the cart frame, the cart frame includes symmetrical side brackets (1) located on both sides and arranged on the two The seat frame between the side brackets (1), the side bracket (1) includes the front wheel bracket (10) with the front wheel assembly (2) at the front end, and the rear wheel with the rear wheel at the lower end The rear wheel bracket (11) and push handle bar (12) of the assembly (3), the seat frame (4) includes seat cushion bars (40) located on both sides and symmetrical, characterized in that: The foldable children's stroller also includes a sliding sleeve (5) slidably arranged along the length direction of the rear wheel bracket (11), and the front ends of the front wheel brackets (10) on both sides rotate with each other. connected, and the rear ends are respectively rotatably connected with the sliding sleeves (5) on both sides; the lower end of the push bar (12) is connected with the upper end of the rear wheel bracket (11), and the The front part of the cushion rod (40) is rotatably connected to the front wheel bracket (10), the rear end is rotatably connected to the rear wheel bracket (11), and the seat frame (4) also includes front and rear bottom struts (41) whose ends are rotatably connected to the seat rod (40) and the lower part of the rear wheel bracket (11); The foldable children's stroller also includes a rear cross brace (6) arranged between the rear wheel brackets (11) on both sides, and the rear cross brace (6) includes a left brace (60), a right brace Rod (61) and pole handle (62), one end of the left pole (60) and the right pole (61) are respectively rotatably connected with the sliding sleeves (5) on both sides, and the other end They are respectively connected in rotation with the two sides of the pole handle (62). 2. The foldable baby stroller according to claim 1, characterized in that: there are two bottom struts (41), and the front and rear ends of the two bottom struts (41) are respectively connected to the opposite side. The seat post (40) is connected with the rear wheel support (11). 3. The foldable stroller for children according to claim 2, characterized in that: the front end of the bottom support rod (41) is rotatably connected to the front part of the cushion rod (40). 4. The foldable baby stroller according to claim 1, 2 or 3, characterized in that: said bottom support rod (41) and said cushion rod (40) are connected by L-shaped joints and rivets Rotationally connected, the bottom support rod (41) is rotatably connected to the rear wheel bracket (11) through U-shaped joints and rivets. 5. The foldable stroller for children according to claim 1, characterized in that: the seat frame also includes symmetrical backrest bars (42) on both sides, and the lower end of the backrest bar (42) is fixed to The connecting block (43) at the front part of the cushion bar (40) is rotatably connected. 6. The foldable baby stroller according to claim 1, characterized in that: when the stroller frame is in the unfolded state, the sliding sleeve (5) is located on the rear wheel bracket (11) the middle and lower part. 7. The foldable children's stroller according to claim 1 or 6, characterized in that: the push handle bar (12) and the rear wheel bracket (11) are relatively slidably arranged. 8. The foldable children's stroller according to claim 7, characterized in that: the lower end of the push handle rod (12) is inserted into the lumen of the rear wheel bracket (11).

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