CN102556135A - Foldable child cart - Google Patents

Abstract

The invention discloses a foldable stroller for children, which comprises a foldable stroller frame, a locking device for locking the stroller frame in an open state, front wheels installed under the stroller frame and a pair of rear The wheel and the cart frame include a front support rod, a bottom rod, a slide block, a cross brace and a connecting rod. Due to the adoption of the above technical solution, the foldable children's stroller of the present invention has the following advantages: when folding, after the locking device is unlocked, the slider is pressed down, and the slider slides backward along the bottom bar after being stressed, driving the connecting rod Rotate, and then make the front strut rotate downward toward the bottom bar, so that the whole vehicle can be folded longitudinally. The cross braces are slowly closed to realize the horizontal folding of the whole vehicle. Combining rotation and sliding, the structure is simple, the operation is convenient, fast, simple and reliable, and it will not be stuck.

Description

foldable stroller

technical field

The invention relates to a stroller for children.

Background technique

The stroller has been accepted by more and more families. When going out, the stroller frame can be opened, and the stroller can be used for infants and young children to sit, so as to reduce the burden on the caregiver. When the stroller needs to be transported or When storing, it is generally desirable to be able to fold the stroller to reduce the volume for easy handling. A foldable baby stroller should meet the requirements of small volume when the stroller is folded, and convenient operation of folding and opening at the same time. The foldable children's stroller in the prior art mostly adopts a multi-bar rotating structure. If the above characteristics are achieved, the general structure is relatively small. complex.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a foldable baby stroller which is easy to be folded and stored.

In order to achieve the above object, the technical solution adopted by the present invention is: a foldable children's stroller, which includes a foldable stroller frame, a locking device for locking the stroller frame in an open state, and a The front wheel and a pair of rear wheels, when the stroller is in normal use, the forward direction is the front, otherwise it is the rear, the stroller frame includes

A front strut, which includes a left front strut and a right front strut;

Bottom bar, which includes a left bottom bar and a right bottom bar, the rear end of the left bottom bar is connected with the left rear wheel, the front end is hinged with the left front strut, and the rear end of the right bottom bar is connected with the right rear wheel , the front end is hinged with the right front strut;

A slider, which includes a left slider and a right slider, the left slider can be slidably arranged on the left bottom bar along the length direction of the left bottom bar, and the right slider can be slidably arranged on the right bottom bar along the length direction of the right bottom bar ;

Cross strut, it comprises the first cross strut and the second cross strut, the front end of the first cross strut is connected with the right bottom bar, the rear end is connected with the left slider, the front end of the second cross strut is connected with the left The bottom bar is connected, and the rear end is connected with the right slider;

Connecting rod, which includes a left connecting rod and a right connecting rod, the upper end of the left connecting rod is hinged with the left front strut, the lower end is hinged with the left slider, the upper end of the right connecting rod is hinged with the right front strut, and the lower end is hinged with the right slider hinged.

Further, the cart frame also includes a push rod, the push rod includes a left push rod and a right push rod, the lower end of the left push rod is hinged with the upper end of the left front strut, and the lower end of the right push rod is hinged with the upper end of the right front strut .

Furthermore, the cart frame also includes an auxiliary support, the auxiliary support includes a left auxiliary support and a right auxiliary support, the upper end of the left auxiliary support is rotatably connected with the upper end of the left connecting rod, and the lower end of the left auxiliary support is connected with the lower end of the right connecting rod. The upper end of the right auxiliary support is rotatably connected with the upper end of the right connecting rod, and the lower end of the right auxiliary support is hinged with the lower end of the left connecting rod.

Preferably, the upper end of the left auxiliary support is hinged with one end of a left auxiliary rod, the other end of the left auxiliary rod is hinged with the upper end of the left connecting rod, the upper end of the right auxiliary support is hinged with one end of a right auxiliary rod, and the right auxiliary The other end of bar is hinged with the upper end of right connecting rod.

More preferably, the left auxiliary support and the right auxiliary support form a cross, and the intersections of the two are hinged.

Preferably, the first cross struts and the second cross struts form a cross, and the intersections of the two are hinged.

More preferably, the left bottom bar is provided with a left guide rail, and the left slider moves along the left guide rail, and the right bottom bar is provided with a right guide rail, and the right slider moves along the right guide rail.

Due to the adoption of the above technical solution, the foldable children's stroller of the present invention has the following advantages:

When folding, after the locking device is unlocked, press the slider down, and the slider slides backward along the bottom bar after being stressed, driving the connecting rod to rotate, and then making the front support bar turn downwards and draw towards the bottom bar, so that the whole vehicle realizes longitudinal Folding, at the same time, the slider moves backward and also drives the cross brace to rotate, so that the distance between the front and rear points of the cross brace is lengthened, and the left second cross brace is slowly closed to realize the horizontal folding of the whole vehicle. Combining rotation and sliding, the structure is simple, the operation is convenient, fast, simple and reliable, and it will not be stuck.

Description of drawings

Accompanying drawing 1 is the left side view of foldable stroller of the present invention opened state;

Accompanying drawing 2 is the rear view when the folding stroller of the present invention is opened;

Accompanying drawing 3 is the A-A sectional view of the foldable children's stroller of the present invention;

Accompanying drawing 4 is the top view of the folding state of the foldable children's stroller of the present invention;

Accompanying drawing 5 is the left side view of the foldable stroller of the present invention in a folded state.

The labels in the figure are:

11. Left front strut; 12. Right front strut;

21. Left bottom bar; 22. Right bottom bar; 221. Right guide rail;

31. Left slider; 32. Right slider;

41. The first cross brace; 42. The second cross brace;

51. Left connecting rod; 52. Right connecting rod;

61. Left push rod; 62. Right push rod;

71. Left auxiliary support; 711. Left push-pull handrail; 72. Right auxiliary support; 721. Right push-pull handrail;

81. Left auxiliary connecting rod; 82. Right auxiliary connecting rod;

91. Front wheels; 92. Rear wheels.

Detailed ways

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, 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.

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, 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.

As can be seen from the structural diagrams of accompanying drawings 1 to 5, the present invention provides a foldable stroller for children, which includes a foldable stroller frame, a locking device for locking the stroller frame in an open state, an installation The front wheel 91 and a pair of rear wheels 92 at the bottom of the stroller frame, the forward direction of the child stroller during normal use is the front, and vice versa, the rear. Rod, connecting rod.

The front struts include a left front strut 11 and a right front strut 12 .

The bottom bar comprises a left bottom bar 21 and a right bottom bar 22, the rear end of the left bottom bar 21 is connected with the rear wheel 92 on the left side, the front end is hinged with the left front strut 11, the rear end of the right bottom bar 22 is connected with the right side Rear wheel 92 is connected, and front end is hinged with right front strut 12.

When the stroller is in the open state, the central axes of the left front strut 11 and the left bottom rod 21 are arranged at an acute angle, and similarly, the central axes of the right front strut 12 and the right bottom rod 22 are set at an acute angle.

The slider includes a left slider 31 and a right slider 32, the left slider 31 can be slidably arranged on the left bottom bar 21 along the length direction of the left bottom bar 21, and the right slider 32 can be slidably arranged along the length direction of the right bottom bar 22 On the right bottom bar 22.

In this embodiment, the left bottom bar 21 is provided with a left guide rail, and the left slider 31 moves along the left guide rail. The right bottom bar 22 is provided with a right guide rail 221 , and the right slider 32 moves along the right guide rail 221 .

The cross brace comprises a first cross brace 41 and a second cross brace 42, the front end of the first cross brace 41 is connected with the right bottom bar 22, the rear end is connected with the left slider 31, and the second cross brace 42 The front end of the front end is connected with the left bottom bar 21, and the rear end is connected with the right slide block 32. The first cross brace 41 and the second cross brace 42 form a cross, and the intersections of the two are hinged.

The connecting rod includes a left connecting rod 51 and a right connecting rod 52. The upper end of the left connecting rod 51 is hinged with the left front strut 11, the lower end is hinged with the left slider 31, and the upper end of the right connecting rod 52 is hinged with the right front strut 12. The lower end is hinged with the right slider 32.

Front wheel 91 can be arranged on the lower end of front strut, also can be arranged on the front below of bottom bar, in the present embodiment, front wheel 91 is arranged on the lower end of left front strut 11 and right front strut 12 respectively.

The cart frame also includes a push rod, and the push rod includes a left push rod 61 and a right push rod 62, the lower end of the left push rod 61 is hinged with the upper end of the left front strut 11, and the lower end of the right push rod 62 is connected with the right front strut 12. The upper ends are hinged. A limiting device that locks the push rod at this position is provided between the push rod and the front support rod when the push rod rotates until its central axis is on the same straight line as the central axis of the front support rod. The upper end of the left push rod 61 is provided with a left push-pull handrail 611 , and the upper end of the right push rod 62 is provided with a right push-pull handrail 621 .

The cart frame also includes an auxiliary support. The auxiliary support includes a left auxiliary support 71 and a right auxiliary support 71. The lower end of the right auxiliary support 72 is rotatably connected with the upper end of the right connecting rod 51, and the lower end of the right auxiliary support 72 is hinged with the lower end of the left connecting rod 51.

In the present embodiment shown in accompanying drawing 2, the upper end of left auxiliary support 71 is hinged with one end of left auxiliary rod 81, and the other end of left auxiliary rod 81 is hinged with the upper end of left connecting rod 51, and right auxiliary support 72 The upper end of the upper end is hinged with an end of a right auxiliary rod 82, and the other end of the right auxiliary rod 82 is hinged with the upper end of the right connecting rod 52. The left auxiliary support 71 and the right auxiliary support 72 are crossed, and the intersections of the two are hinged.

When folding, after the locking device is unlocked, the sliders 31, 32 are pressed down, and the sliders 31, 32 slide backward along the bottom rods 21, 22 after being stressed, driving the connecting rods 51, 52 to rotate, and then the front strut 11 , 12 turn downwards to draw in the bottom bar, so that the whole vehicle can be folded longitudinally. At the same time, the backward movement of the sliders 31, 32 also drives the cross struts 41, 42 to rotate, so that the distance between the front and rear points of the cross struts 41, 42 is lengthened. , the first cross strut 41 and the second cross strut 42 are slowly closed to realize the lateral folding of the whole vehicle. Rotate push rod 61,62 forward, make push rod 61,62 move closer to forward strut 11,12, make whole vehicle be further folded longitudinally.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (7)

1. A collapsible stroller for children, which comprises a foldable stroller frame, a locking device for locking the stroller frame in an open state, front wheels (91) mounted below the stroller frame and A pair of rear wheels (92), characterized in that: the cart frame includes A front strut, which includes a left front strut (11) and a right front strut (12); Bottom bar, which includes a left bottom bar (21) and a right bottom bar (22), the rear end of the left bottom bar (21) is connected with the left rear wheel (92), and the front end is connected with the left front support bar (11) are hinged, the rear end of the right bottom rod (22) is connected to the right rear wheel (92), and the front end is hinged to the right front strut (12); A slider, which includes a left slider (31) and a right slider (32), the left slider (31) is slidably arranged on the left bottom bar (21) along the length direction of the left bottom bar (21) above, the right slider (32) is slidably set on the right bottom bar (22) along the length direction of the right bottom bar (22); A cross brace, which includes a first cross brace (41) and a second cross brace (42), the front end of the first cross brace (41) is connected to the right bottom bar (22), and the rear The end is connected with the left slider (31), the front end of the second cross brace (42) is connected with the left bottom bar (21), and the rear end is connected with the right slider (32). connect; Connecting rod, which includes a left connecting rod (51) and a right connecting rod (52), the upper end of the left connecting rod (51) is hinged with the left front strut (11), and the lower end is connected with the left slider (31) The upper end of the right connecting rod (52) is hinged with the right front strut (12), and the lower end is hinged with the right slider (32). 2. The foldable children's stroller according to claim 1, characterized in that: the stroller frame further includes a push rod, and the push rod includes a left push rod (61) and a right push rod (62 ), the lower end of the left push rod (61) is hinged with the upper end of the left front strut (11), the lower end of the right push rod (62) is connected with the upper end of the right front strut (12) hinged. 3. The foldable children's stroller according to claim 1, characterized in that: the stroller frame further includes auxiliary supports, and the auxiliary supports include left auxiliary supports (71) and right auxiliary supports (71 ), the upper end of the left auxiliary support (71) is rotationally connected with the upper end of the left connecting rod (51), the lower end of the left auxiliary support (71) is hinged with the lower end of the right connecting rod (52), and the right The upper end of the auxiliary support (72) is rotationally connected with the upper end of the right connecting rod (51), and the lower end of the right auxiliary support (72) is hinged with the lower end of the left connecting rod (51). 4. The foldable children's stroller according to claim 3, characterized in that: the upper end of the left auxiliary support (71) is hinged to one end of a left auxiliary rod (81), and the left auxiliary rod (81) The other end is hinged with the upper end of the left connecting rod (51), the upper end of the right auxiliary support (72) is hinged with one end of a right auxiliary rod (82), and the other end of the right auxiliary rod (82) is connected with the right The upper ends of the connecting rod (52) are hinged. 5. The foldable stroller for children according to claim 3, characterized in that: the left auxiliary support (71) and the right auxiliary support (72) form a cross, and the intersections of the two are hinged. 6. The foldable stroller for children according to claim 1, characterized in that: the first cross bar (41) and the second cross bar (42) are crossed, and the intersections of the two cross hinged. 7. The foldable stroller for children according to claim 1, characterized in that: the left bottom bar (21) is provided with a left guide rail, and the left slider (31) moves along the left guide rail, so that The right bottom bar (22) is provided with a right guide rail (221), and the right slider (32) moves along the right guide rail (221).

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