CN103072613B - Children trolley - Google Patents

Abstract

<b>The present invention discloses a stroller for children, which includes a foldable stroller frame, front wheels and rear wheels installed at the bottom of the stroller frame, a locking device for locking the stroller frame in an open state, The cart frame includes an underframe, a pole, a connecting rod, a bracket, and a push handle. Due to the adoption of the above technical solution, the children's stroller of the present invention has a simple structure, convenient folding operation, and can be grafted with a seat pocket and a seat with a load-assisting function. </b>

Description

stroller

technical field

The invention relates to a stroller for children.

Background technique

Existing children's stroller comprises a vehicle frame, a seat installed on the vehicle frame, a front wheel and a rear wheel installed below the vehicle frame, a canopy connected to the upper part of the vehicle frame, and the described vehicle frame includes The front wheel bracket of the front wheel, the rear wheel bracket on which the rear wheel is installed at the bottom and the upper part is connected to the upper part of the front wheel bracket, and the lower part is connected to the upper part of the front wheel bracket or the upper part of the rear wheel bracket The push rod, the handrail connected with the top of the front wheel bracket or the bottom of the push rod, the handrail is positioned at the front side of the vehicle frame, and the push rod is positioned at the rear side of the vehicle frame so that adults can push the cart forward.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a stroller for children.

In order to achieve the above object, the technical solution adopted by the present invention is: a kind of stroller for children, which includes a foldable stroller frame, front wheels and rear wheels installed at the bottom of the stroller frame, and the stroller frame is locked on the Locking device in open position, cart frame includes

Underframe, the front and rear wheels are installed at the bottom of the underframe;

a vertical rod, the lower part of which is rotatably connected to the rear of the chassis;

The connecting rod, the upper part of the connecting rod is hinged with the vertical rod, and the lower part of the connecting rod is rotatably and slidably connected to the bottom frame;

Bracket, the rear part of the bracket is rotatably connected with the upper part of the pole;

Push the handle, the lower part of the push handle is rotatably connected with the upper part of the vertical rod.

Further, the underframe includes a front wheel bracket on which the front wheels are installed at the bottom, and a rear wheel bracket on which the rear wheels are installed at the bottom and whose upper part is rotatably connected to the upper part of the front wheel bracket.

Further, the rear wheel bracket has a pair and is respectively arranged on the left and right sides of the front wheel bracket, and one end near the front wheel bracket on the top of each rear wheel bracket is rotatably connected to the front wheel bracket.

Further, the rear wheel bracket includes a first bar and a second bar respectively hinged with the front wheel bracket, a connecting frame respectively hinged with the first bar and the second bar, and the front wheel bracket, the first bar, the second bar and The connecting frames form a parallelogram. Preferably, the rear wheels are mounted on the link frame.

Further, a bottom link is hinged on the rear wheel bracket, and the other end of the bottom link opposite to the hinged end of the rear wheel bracket is rotatably connected to the front wheel bracket and can slide back and forth.

Further, a cross bar is fixedly connected to the upper part of the upright bar, and the cross bar and the upright bar are arranged in a cross, and the bracket is rotatably connected to the left and right sides of the cross bar. bracket limiter.

Further, the front part of the bracket is provided with an interface for connecting the seat pocket.

Further, a seat for children is detachably installed on the chassis, preferably, the seat is detachably installed on the front wheel bracket.

Further, the bottom frame is provided with a sliding sleeve that can slide in the front-rear direction, the lower part of the connecting rod is hinged with the sliding sleeve, and the other end of the bottom connecting rod is hinged with the sliding sleeve.

Further, a tray frame is rotatably arranged on the push handle.

Further, a push handle limiting device is provided between the push handle and the pole to limit the relative position of the two.

Further, the locking device includes an unlocking handle arranged on the pole, a locking piece designed on the bottom frame and limiting the relative position of the sliding sleeve and the bottom frame, and a drag cable connected at one end to the unlocking handle and the other end to the locking piece.

Due to the adoption of the above technical solution, the children's stroller of the present invention has a simple structure, convenient folding operation, and can be grafted with a seat pocket and a seat with a load-assisting function.

Description of drawings

Accompanying drawing 1 is the three-dimensional structure diagram of the children's stroller in the open state of the present invention;

Accompanying drawing 2 is the side view of the stroller of the present invention when it is opened;

Accompanying drawing 3 is the top view of the stroller of the present invention when it is opened;

Accompanying drawing 4 is the side view of the children's stroller in the folding process of the present invention;

Accompanying drawing 5 is the side view of the children's stroller in the folded state of the present invention;

Accompanying drawing 6 is the three-dimensional structural diagram of the stroller of the present invention when the bracket is put away and the seat is installed.

The labels in the figure are:

1. Front wheel bracket; 2. Sliding sleeve; 3. Connecting rod; 4. Interface; 5. Push handle limit device; 6. Bracket limit device; 7. Bracket; 8. Pole; 9. Unlock handle ;10. Push handle rotation adjustment handle; 11. Mobile phone tray; 12. Cup holder; 13. Push handle; 14. Cross bar; 15. First rod; 16. Front wheel; 17. Rear wheel; ; 19, the seat; 20, the bottom connecting rod; 21, the second bar.

detailed description

The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

This embodiment takes a child as an example to illustrate the children's stroller of the present invention. It can be seen from the structural diagrams of accompanying drawings 1 to 6 that the children's stroller in this embodiment includes a foldable stroller frame , the front wheel 16 and rear wheel 17 that are installed in the bottom of the cart frame, the locking device that the cart frame is locked in the open state, the cart frame includes underframe, vertical rod 8, connecting rod 3, bracket 7, Push handle 13. The front and rear directions mentioned in this embodiment are defined according to the custom of the cart during normal use, the forward direction is the front, and the opposite direction is the rear.

Underframe comprises the front wheel support 1 that front wheel 16 is installed on the bottom, rear wheel 17 is installed on the bottom and the rear wheel support that top is rotatably connected with the top of front wheel support 1, the top of front wheel support 1 and the top of rear wheel support Roughly set horizontally, the front wheel support 1 is arranged along the front-to-back direction, so the top of the front wheel support 1 is also its rear portion, and the rear wheel support has a pair and is respectively arranged on the left and right sides of the front wheel support 1.

Rear wheel support comprises first bar 15 and the second bar 21 that are respectively hinged with front wheel support 1, the connecting frame 18 that is respectively hinged with first bar 15 and second bar 21, and front wheel support 1, first bar 15 , the second rod 21 and the connecting frame 18 form a parallelogram. A bottom link 20 is hinged on the rear wheel support, and the other end of the bottom link 20 is rotatable and can slide forward and backward with the front wheel support 1 opposite to the hinged one end of the rear wheel support. One end of the bottom link 20 in this embodiment is hinged on the first rod 15 , and the rear wheel 17 is installed on the connecting frame 18 .

The bottom of the upright bar 8 is rotatably connected back and forth to the rear portion of the chassis, and the bottom part of the upright bar 8 in the present embodiment is hinged at the rear portion of the front wheel bracket 1 .

The top of the connecting rod 3 is hinged with the vertical rod 8, and the bottom of the connecting rod 3 is rotatably and slidably connected to the underframe. Sliding sleeve 2, the bottom of connecting rod 3 is hinged with sliding sleeve 2. The other end of the above-mentioned bottom connecting rod 20 is also hinged on the sliding sleeve 20 .

The bracket 7 is rotatably connected to the upper part of the vertical rod 8 through the cross bar 14, the cross rod 14 is fixedly connected to the upper part of the vertical rod 8, the cross bar 14 and the vertical rod 8 are arranged in a cross, and the bracket 7 has a pair and is respectively rotatably connected. On the left and right sides of the cross bar 14, the front part of the bracket 7 is provided with an interface 4 for connecting the seat pocket, and a bracket limiting device 6 is provided between the bracket 7 and the cross bar 14 to limit the relative position of the two. The axis of rotation A between the bracket 7 and the cross bar 14 is substantially horizontally arranged, and the axis of rotation A and the axis of the cross bar 14 form an angle so that the bracket 7 can move toward the vertical bar when it rotates downward. 8, so that the cart frame is more compact between the rods when folded.

Push handle 13, the bottom of push handle 13 is rotatably connected with the top of vertical rod 8. Between the push handle 13 and the vertical rod 8, there is a push handle limiting device 5 that limits the relative positions of the two. The push handle 13 is rotatably provided with a tray holder, and the tray holder in the present embodiment includes a mobile phone tray 11 and a cup holder 12 which are rotatably connected to the push handle 13 respectively, so that adults can place personal belongings conveniently.

The locking device includes an unlocking handle 9 arranged on the pole 8, a locking piece designed on the bottom frame and limiting the relative position of the sliding sleeve 2 and the bottom frame, and a drag cable connected at one end to the unlocking handle 9 and the other end to the locking piece .

With reference to accompanying drawing 2 to accompanying drawing 5, the arrow in the figure represents the moving direction of parts, and the folding process of cart frame is as follows:

1. Unlock the bracket limit device 6, so that the bracket rod 7 rotates downward around its rotation axis to the middle and puts it away; adjust the push handle to rotate the adjustment handle 10, and push the push handle 13 to rotate and put it down; the cup holder 12 and the mobile phone holder 11 can rotate a full circle respectively;

2. Pull the unlocking handle 9, and then pull the traction lock to unlock the locking piece located in the sliding sleeve 2. The sliding sleeve 2 slides on the front wheel bracket 1 in the direction of the arrow, and drives the vertical rod through the connecting rod 3 and the bottom connecting rod 20. 8 and the rear wheel bracket are folded, so that the whole vehicle is folded as accompanying drawing 5.

As shown in accompanying drawing 6, a seat 19 for children to ride is detachably installed on the front wheel bracket 1, so the stroller has two modes for children to ride on, open the bracket 7, and install the seat pocket through the interface 4 , children can ride in the seat pocket; fold up the bracket 7, install the seat 19, and children can ride on the seat.

The above embodiments are only to illustrate the technical concept and characteristics of the present invention. All equivalent changes or modifications shall fall within the protection scope of the present invention.

Claims (8)

1. a children trolley, it is characterized in that: it comprises folding stroller frame, the blocking device that is arranged on front vehicle wheel (16) bottom described stroller frame and rear wheel (17), described stroller frame is locked in open mode, and described stroller frame comprises

Underframe, described front vehicle wheel (16) and rear wheel (17) are arranged on the bottom of described underframe, described underframe are removably provided with the seat (19) for children's ride-on;

Vertical rod (8), the bottom of described vertical rod (8) can before and after be connected to the rear portion of described underframe rotationally;

Connecting rod (3), top and the described vertical rod (8) of described connecting rod (3) are hinged, the lower rotatable of described connecting rod (3) and can being connected to slidingly back and forth on described underframe;

Bracket (7), the rear portion of described bracket (7) rotates with the top of described vertical rod (8) and is connected, and the front portion of described bracket (7) is provided with the interface (4) for Connection Block pocket;

Handle (13), the bottom of described handle (13) rotates with the top of described vertical rod (8) and is connected;

Described children trolley has the first mode of operation and the second mode of operation, and when it is at the first mode of operation, bracket (7) relatively vertical rod (8) is opened, and seat pocket is connected with interface (4); When children trolley is at the second mode of operation, bracket (7) relatively vertical rod (8) draws in, and seat (19) are connected with underframe.

2. children trolley according to claim 1, is characterized in that: described underframe comprises that bottom is provided with the front-wheel support (1) of described front vehicle wheel (16), the bottom rear wheel support be connected that is provided with described rear wheel (17) and top and the top of described front-wheel support (1) rotate.

3. children trolley according to claim 2, it is characterized in that: described rear wheel support has a pair and is separately positioned on the left and right sides of described front-wheel support (1), one end of the close front-wheel support (1) on each described rear wheel support top is rotatably connected on front-wheel support (1).

4. children trolley according to claim 2, it is characterized in that: described rear wheel support comprises the first bar (15) of being hinged with front-wheel support (1) respectively and the second bar (21), distinguishes hinged link span (18) with described first bar (15) and the second bar (21), and described front-wheel support (1), the first bar (15), the second bar (21) and link span (18) form a parallelogram.

5. children trolley according to claim 2, it is characterized in that: described rear wheel support is hinged with an end connecting rod (20), described end connecting rod (20) with rear wheel support be hinged the contrary other end in one end and front-wheel support (1) rotatable and can the connection of slide anteroposterior.

6. children trolley according to claim 1, it is characterized in that: the top of described vertical rod (8) is fixedly connected with a cross bar (14), this cross bar (14) and described vertical rod (8) are arranged in right-angled crossing, described bracket (7) is rotatably connected on the left and right sides of described cross bar (14), is provided with the bracket inhibiting device (6) of both restrictions relative position between described bracket (7) and cross bar (14).

7. the children trolley according to claim 1 or 6, it is characterized in that: described underframe is provided with the sliding sleeve (2) that can slide along the longitudinal direction, bottom and the described sliding sleeve (2) of described connecting rod (3) are hinged, and the other end and the sliding sleeve (2) of described end connecting rod (20) are hinged.

8. children trolley according to claim 1, is characterized in that: described handle (13) is provided with tray rack rotationally.