CN101920715A - Baby carriage - Google Patents

Abstract

A stroller for children, comprising a stroller frame, the stroller frame includes a left front bracket, a right front bracket, a left front connecting piece rotatably connected to the lower part of the left front bracket, a right front connecting piece rotatably connected to the lower part of the right front bracket , the left rear bracket whose upper part is rotatably connected with the upper part of the left front bracket, the right rear bracket whose upper part is rotatably connected with the upper part of the right front bracket, the left slider that is slidably connected with the left rear bracket, and the right rear bracket that slides ground connected right sliding piece, a horizontally foldable bottom bracket, and a horizontally foldable rear bracket, the bottom bracket includes a first bottom brace, a first bottom brace that crosses and is rotationally connected at the intersection Second bottom stay. The present invention provides a technical solution of another technical idea, the cart frame has fewer parts and simple structure.

Description

a stroller for children

technical field

The invention relates to a stroller for children.

Background technique

A child stroller in the prior art usually includes a stroller frame with an unfolded position and a folded position, a left front wheel assembly and a right front wheel assembly arranged at the bottom front of the stroller frame, and a The left rear wheel assembly and the right rear wheel assembly at the bottom rear of the cart frame are a locking mechanism that locks the cart frame in an unfolded position. As shown in the document disclosed by the China Patent Office as an umbrella handle car and a publication number of 2389095, the cart includes front legs, rotatable front wheels arranged at the lower ends of the front legs, rear legs, and The rotatable rear wheel at the lower end of the rear leg, the push handle rod that is rotatably connected to the front end and the rear end of the front leg, and the upper end of the rear leg and the push handle rod are rotatable connection, the two rods intersect and the two front ends of the lower cross brace rotatably connected at the intersection are respectively rotatably connected with the lower parts of a pair of front legs, and the two rear ends of the lower cross brace are respectively connected with The pair of rear legs are rotatably connected; the outer ends of the two rear connecting rods are respectively rotatably connected to the pair of rear legs, and the inner ends of the two rear connecting rods are rotatably connected and can be A limiting device is provided at the rotational connection; the two lower ends of the rear cross brace that are rotatably connected to each other by two rods intersecting at the intersection are respectively rotatably connected to the rotating parts on the rear legs, and the two ends of the rear cross brace are rotatably connected Each upper end is rotatably connected to a pair of push handle rods; the front end of the lower link is rotatably connected to the front leg, and the rear end of the lower link is rotatably connected to the rear leg. . During the folding process, the two push handles fall forward and downward, and the two push handles move closer to the two front legs. The two front legs are far away from the two rear legs, and the transverse size is reduced, and the cart is folded.

Contents of the invention

The technical problem to be solved by the present invention is to provide a stroller for children.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is: a children's stroller, including a stroller frame with an unfolded position and a folded position, and a left front The wheel assembly and the right front wheel assembly, the left rear wheel assembly and the right rear wheel assembly arranged at the bottom rear part of the cart frame, the locking mechanism for locking the cart frame in the unfolded position, the The cart frame includes

left front bracket;

right front bracket;

a left front connecting piece, the left front connecting piece is rotatably connected to the lower part of the left front bracket;

a right front connecting piece, said right front connecting piece is rotatably connected with the lower part of said right front bracket;

Left rear bracket, the upper part of the left rear bracket is rotationally connected with the upper part of the left front bracket;

the right rear bracket, the upper part of the right rear bracket is rotationally connected with the upper part of the right front bracket;

a left slider, the left slider is slidably connected with the left rear bracket along the length direction of the left rear bracket;

a right sliding piece, the right sliding piece is slidably connected with the right rear bracket along the length direction of the right rear bracket;

A bottom brace that can be folded horizontally, the bottom brace includes a first bottom brace, a second bottom brace that intersects with the first bottom brace and is rotatably connected at the intersection, the The front end of the first bottom brace and the left front connecting piece are at least rotatably arranged on two intersecting planes, and the rear end of the first bottom brace is at least rotatable with the right sliding piece. Rotate on two intersecting planes, the front end of the second bottom support rod and the right front connecting piece can at least rotate on two intersecting planes, the second bottom The rear end of the strut and the left sliding piece are arranged to be rotatable on at least two intersecting planes;

A rear bracket that can be folded horizontally, the rear bracket is arranged between the left rear bracket, the right rear bracket, the left slider, and the right slider; or the The rear bracket is arranged between the left rear bracket and the right rear bracket.

After the locking mechanism is unlocked, the left sliding part slides upward relative to the left rear bracket, and the right sliding part slides upward relative to the right rear bracket. The left rear support is relatively close, the right front support is relatively close to the right rear support, and the left and right front supports are close to each other, and the left and right rear support are close to each other.

In some embodiments, the front end of the first bottom brace and the left front connecting piece are rotatably arranged through a first rotating joint, and the rear end of the first bottom brace is connected to the The said right sliders are arranged to rotate through the second rotating joint, and the front end of the second bottom support rod and the said right front connecting member are arranged to rotate through the third rotating joint. The rear end of the second bottom brace and the left slider are rotatably arranged through a fourth rotary joint.

In some embodiments, the cart frame further includes a left push handle bar and a right push handle bar, the lower end of the left push handle bar is movably connected with the upper end of the left front bracket, A left push handle locking mechanism is arranged between the left push handle bar and the left front bracket, the lower end of the right push handle bar is movably connected with the upper end of the right front bracket, and the A right push handle bar locking mechanism is arranged between the right push handle bar and the right front bracket. After the locking mechanism of the left push handle and the right push handle are unlocked, the left front bracket and the left push handle can be folded and folded relatively, and the right front bracket and the right push handle can be folded and folded relatively. After folding, the cart The rack is small in size and easy to transport.

In some further embodiments, the left push handle rod is slidably connected with the left front bracket, and the right push handle rod is slidably connected with the right front bracket; or the left push handle The bar is rotatably connected with the left front bracket, and the right push bar is rotatably connected with the right front bracket.

In some still further embodiments, a horizontally foldable push handle cross brace is provided between the upper end of the left push handle rod and the upper end of the right push handle rod. The rigidity between the left and right push handle bars is stronger.

In some embodiments, the left rear bracket is provided with a left chute along its length direction, the right rear bracket is provided with a right chute along its length direction, and the left slider is slidably disposed on the In said left chute, said right slider is slidably arranged in said right chute.

In some embodiments, the locking mechanism includes a left locking mechanism arranged between the left slider and the left rear bracket, a left locking mechanism arranged between the right slider and the right Right side locking mechanism between rear brackets.

In some embodiments, the rear brace includes a first rear brace, a second rear brace that intersects with the first rear brace and is rotatably connected at the intersection, and the first rear brace The upper end of a rear strut is rotatably connected to the left slider, the lower end of the first rear strut is rotatably connected to the lower part of the right rear bracket, and the second rear The upper end of the strut is rotatably connected to the right sliding member, and the lower end of the second rear strut is rotatably connected to the lower part of the left rear bracket.

In some embodiments, a horizontal brace capable of being folded laterally is provided between the left sliding piece and the right sliding piece. Strong rigidity. During the folding process of the pushcart frame, folding the cross brace can further promote the sliding of the left sliding part relative to the left rear support, and the sliding of the right sliding part relative to the right rear support.

In some embodiments, the left front wheel assembly is arranged at the lower part of the left front connecting part, and the right front wheel assembly is arranged at the lower part of the right front connecting part.

The orientation words such as up, down, front and back mentioned above are defined when the cart frame is in the unfolded position.

The scope of the present invention is not limited to technical solutions formed by a specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or equivalent features. For example, technical solutions formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: the present invention provides another technical concept of the technical solution, the stroller frame has fewer parts and simple structure.

Description of drawings

Accompanying drawing 1 is the perspective view of the present invention (cart frame is in unfolded position);

Accompanying drawing 2 is the front view of the present invention (cart frame is in unfolded position);

Accompanying drawing 3 is the three-dimensional view of the present invention (cart frame is in the conversion process of expanded position and folded position);

Accompanying drawing 4 is the front view of the present invention (cart frame is in the conversion process of expanded position and folded position);

Accompanying drawing 5 is the perspective view of the present invention (cart frame is in folded position);

Accompanying drawing 6 is the front view of the present invention (the stroller frame is in the folded position).

Among them: 1. Cart frame; 2. Left front wheel assembly; 3. Right front wheel assembly; 4. Left rear wheel assembly; 5. Right rear wheel assembly; 6. Left front bracket; 7. Right front bracket; 8. Left front Connector; 9. Right front connector; 10. Left rear support; 11. Right rear support; 12. Left sliding part; 13. Right sliding part; 14. Bottom support frame; 15. First bottom support bar; 16. The first Two bottom support rods; 17, rear support frame; 18, first revolving joint; 19, second revolving joint; 20, third revolving joint; 21, fourth revolving joint; 22, left push bar; 23, right push Bar; 24, push handle cross brace; 25, right chute; 26, the first back brace; 27, the second rear brace; 28, cross brace.

Detailed ways

As shown in the accompanying drawings, a children's stroller includes a stroller frame 1 with an unfolded position and a folded position, a left front wheel assembly 2 and a right front wheel set at the bottom front of the stroller frame 1 Component 3, the left rear wheel assembly 4 and the right rear wheel assembly 5 arranged at the bottom rear of the stroller frame 1, and a locking mechanism for locking the stroller frame 1 in the unfolded position.

The cart frame 1 includes

Left front bracket 6;

Right front bracket 7;

Left front connecting piece 8, said left front connecting piece 8 is rotatably connected with the lower part of said left front bracket 6;

Right front connecting piece 9, said right front connecting piece 9 is connected with the lower part of said right front bracket 7 in a rotatable manner;

Left rear bracket 10, the upper part of the left rear bracket 10 is rotationally connected with the upper part of the left front bracket 6;

Right rear bracket 11, the upper part of said right rear bracket 11 is rotationally connected with the upper part of said right front bracket 7;

A left slider 12, said left slider 12 is slidably connected with said left rear bracket 10 along the length direction of said left rear bracket 10;

A right slider 13, said right slider 13 is slidably connected with said right rear bracket 11 along the length direction of said right rear bracket 11;

A bottom brace 14 that can be folded horizontally, the bottom brace 14 includes a first bottom brace 15, a second bottom brace that intersects with the first bottom brace 15 and is rotatably connected at the intersection 16. The front end of the first bottom brace 15 and the left front connecting piece 8 are rotatably arranged on at least two intersecting planes, and the rear end of the first bottom brace 15 is connected to the The right sliding part 13 can be arranged to rotate on at least two intersecting planes, and the front end of the second bottom brace 16 and the right front connecting part 9 can at least be arranged on two intersecting planes. Rotately arranged, the rear end of the second bottom brace 16 and the left slider 12 can be arranged to rotate on at least two intersecting planes;

A rear support frame 17 capable of being folded laterally.

As shown in accompanying drawing 1, accompanying drawing 3, accompanying drawing 5, the front end portion of the first bottom brace 15 and the left front connecting piece 8 are arranged to rotate through the first rotating joint 18, the The rear end of the first bottom brace 15 and the right slider 13 are rotatably arranged through the second rotary joint 19, and the front end of the second bottom brace 16 is connected to the front right The components 9 are rotatably arranged through the third rotary joint 20 , and the rear end portion of the second bottom brace 16 and the left sliding member 12 are rotatably arranged through the fourth rotary joint 21 . Not shown in the figure can also be that the front end of the first bottom brace 15 is connected to the left front connecting piece 8 in a spherical rotation, and the rear end of the first bottom brace 15 is connected to the The right sliders 13 are connected in spherical rotation, the front end of the second bottom brace 16 is connected in spherical rotation with the right front connecting piece 9, and the rear end of the second bottom brace 16 is Part and the said left slider 12 are connected in spherical rotation.

As shown in the drawings, the cart frame 1 also includes a left push handle bar 22 and a right push handle bar 23, the lower end of the left push handle bar 22 and the upper end of the left front bracket 6 Rotately connected, a left push handle locking mechanism is provided between the left push handle bar 22 and the left front bracket 6, the lower end of the right push handle bar 23 is connected to the right front bracket 7 The upper ends are rotatably connected, and a right push handle bar locking mechanism is arranged between the right push handle bar 23 and the right front bracket 7 . Between the upper end of the left push handle bar 22 and the upper end of the right push handle bar 23, a push handle cross brace 24 capable of being folded laterally is arranged. The left and right push lever locking mechanisms are not the focus of the present invention, as long as the locking mechanism can be locked between the two relative rotating parts, it can be used here, such as taking the left push lever locking mechanism as an example, the left The lower end of the push bar is provided with a first tooth groove, the upper end of the left front bracket 6 is provided with a second tooth groove, and a sliding tooth block is slidably arranged between the first tooth groove and the second tooth groove. , the sliding tooth block is only inserted in the first tooth slot or the second tooth slot. It can also be, not shown in the figure, that the cart frame 1 also includes a left push handle bar 22 and a right push handle bar 23, the lower end of the left push handle bar 22 and the upper end of the left front bracket 6 Parts are slidably connected, a left push handle locking mechanism is provided between the left push handle rod 22 and the left front bracket 6, the lower end of the right push handle rod 23 is connected to the right front bracket 7 The upper end of the upper end is slidably connected, and a right push handle locking mechanism is arranged between the right push handle bar 23 and the right front bracket 7 . Likewise, any locking mechanism that can lock between two sliding parts can be used here.

As shown in accompanying drawing 1, accompanying drawing 3, accompanying drawing 5, described left rear support 10 is provided with left chute along its length direction, and described right rear support 11 is provided with right chute 25 along its length direction, The left slider 12 is slidably arranged in the left chute, and the right slider 13 is slidably arranged in the right chute 25 . It is also possible that the left slider 12 and the right slider 13 are both sliding sleeves, the left slider 12 is sleeved on the left rear bracket 10 , and the right slider 13 is slidably sleeved on the right rear bracket 11 .

The locking mechanism includes a left locking mechanism arranged between the left slider 12 and the left rear bracket 10, and a left locking mechanism arranged between the right slider 13 and the right rear bracket 11. between the right locking mechanism. The left locking mechanism and the right locking mechanism are arranged symmetrically, and any locking mechanism that can lock between the two sliding parts can be used. For example, taking the left locking mechanism as an example, it is set on the left rear bracket 10 There is a spring pin, and a spring pin hole is provided on the left sliding part 12. When locking, the spring pin is inserted in the described spring pin hole; There is a convex portion on the piece 12, and when locked, the lock hook hooks the convex portion.

In the present embodiment, as shown in accompanying drawing 1, accompanying drawing 3, accompanying drawing 5, described rear bracket 17 is a cross brace, and described rear bracket 17 is arranged on described left rear bracket 10, described Between the right rear bracket 11, the left slider 12, and the right slider 13, a first rear strut 26 is included, intersecting with the first rear strut 26 and rotating at the intersection ground connected second rear strut 27, the upper end of the first rear strut 26 is rotationally connected with the left slider 12, the lower end of the first rear strut 26 is connected with the The lower part of the right rear bracket 11 is rotationally connected, the upper end of the second rear strut 27 is rotationally connected with the right slider 13, and the lower end of the second rear strut 27 is connected with the The lower part of the left rear bracket 10 is rotatably connected.

Not shown in the figure, the rear bracket can also be a parent bracket, and the rear bracket is arranged between the left rear bracket and the right rear bracket, including:

vertical pole;

A first cross bar, one end of the first cross bar is rotatably connected to the upper end of the vertical bar, and the other end of the first cross bar is rotatably connected to the left rear bracket;

A second cross bar, one end of the second cross bar is rotatably connected to the upper end of the vertical bar, and the other end of the second cross bar is rotatably connected to the right rear bracket;

a slider, the slider is slidably arranged on the vertical bar;

A third crossbar, one end of the third crossbar is rotatably connected to the lower end of the vertical bar, and the other end of the third crossbar is rotatably connected to the left rear bracket;

The fourth cross bar, one end of the fourth cross bar is rotatably connected to the lower end of the vertical bar, and the other end of the fourth cross bar is rotatably connected to the right rear bracket.

A first slanting rod, one end of the first slanting rod is rotatably connected to the slider, and the other end of the first slanting rod is rotatably connected to the third cross bar;

As for the second slanting rod, one end of the second slanting rod is rotatably connected to the slider, and the other end of the second slanting rod is rotatably connected to the fourth cross bar.

A horizontal brace 28 capable of being folded laterally is arranged between the left sliding piece 12 and the right sliding piece 13 .

The left front wheel assembly 2 is arranged on the lower part of the left front connecting piece 8 , and the right front wheel assembly 3 is arranged on the lower part of the right front connecting piece 9 . It may also be that the left front wheel assembly 2 is arranged at the lower part of the left front bracket 6 , and the right front wheel assembly 3 is arranged at the lower part of the right front bracket 7 . The left rear wheel assembly 4 is arranged on the lower part of the left rear support 10 , and the right rear wheel assembly 5 is arranged on the lower part of the right rear support 11 .

As mentioned above, we have fully described according to the purpose of the present invention, but the present invention is not limited to the above-mentioned embodiments and implementation methods. Practitioners in the relevant technical fields may make various changes and implementations within the scope permitted by the technical ideas of the present invention.

Claims (10)

1. A stroller for children, comprising a stroller frame (1) with an unfolded position and a folded position, a left front wheel assembly (2) and a right front wheel assembly (2) arranged at the bottom front of the stroller frame (1) The wheel assembly (3), the left rear wheel assembly (4) and the right rear wheel assembly (5) arranged at the bottom rear of the cart frame (1) lock the cart frame (1) The locking mechanism in the unfolded position is characterized in that the cart frame (1) includes Left front bracket (6); Right front bracket (7); The left front connecting piece (8), the left front connecting piece (8) is rotatably connected with the lower part of the left front bracket (6); The right front connecting piece (9), the right front connecting piece (9) is rotatably connected with the lower part of the right front bracket (7); The left rear bracket (10), the upper part of the left rear bracket (10) is rotationally connected with the upper part of the left front bracket (6); Right rear bracket (11), the upper part of the right rear bracket (11) is rotationally connected with the upper part of the right front bracket (7); A left slider (12), the left slider (12) is slidably connected with the left rear bracket (10) along the length direction of the left rear bracket (10); A right slider (13), the right slider (13) is slidably connected with the right rear bracket (11) along the length direction of the right rear bracket (11); A bottom bracket (14) that can be folded horizontally, the bottom bracket (14) includes a first bottom brace (15), intersects with the first bottom brace (15) and rotates at the intersection ground-connected second bottom brace (16), the front end of the first bottom brace (15) and the left front connecting piece (8) are at least rotatably arranged on two intersecting planes, The rear end of the first bottom brace (15) and the right slider (13) are arranged to be rotatable on at least two intersecting planes, and the second bottom brace (16) The front end of the front end and the right front connecting piece (9) can be rotatably arranged on at least two intersecting planes, and the rear end of the second bottom support rod (16) is connected to the left sliding piece ( 12) It can be arranged to be rotatable on at least two intersecting planes; A rear bracket (17) that can be folded horizontally, the rear bracket (17) is arranged on the left rear bracket (10), the right rear bracket (11), the left slider (12) ), the right slider (13); or the rear bracket (17) is arranged between the left rear bracket (10) and the right rear bracket (11). 2. A stroller for children according to claim 1, characterized in that: the front end of the first bottom support rod (15) and the left front connecting piece (8) pass through the first rotating joint (18) are set in rotation, the rear end of the first bottom support rod (15) and the right slider (13) are set in rotation through the second rotation joint (19), the The front end of the second bottom brace (16) and the right front connecting piece (9) are rotatably arranged through the third pivot joint (20), and the rear of the second bottom brace (16) The end part and the left sliding piece (12) are arranged in a rotatable manner through a fourth revolving joint (21). 3. A child stroller according to claim 1, characterized in that: said stroller frame (1) also includes a left push handle bar (22) and a right push handle bar (23), said The lower end of the left push bar (22) is movably connected with the upper end of the left front bracket (6), and a Left push lever locking mechanism, the lower end of the right push lever (23) is movably connected with the upper end of the right front bracket (7), the right push lever (23) is connected with the A right push handle bar locking mechanism is arranged between the right front brackets (7). 4. The stroller for children according to claim 3, characterized in that: said left push handle bar (22) is slidably connected with said left front bracket (6), said right push handle bar (23) is slidably connected with said right front bracket (7); or said left push bar (22) is rotatably connected with said left front bracket (6), said right push bar ( 23) It is rotatably connected with the said right front support (7). 5. A child stroller according to claim 3, characterized in that: an upper end of the left push handle bar (22) and an upper end of the right push handle bar (23) are provided A horizontally foldable push handle cross brace (24). 6. A stroller for children according to claim 1, characterized in that: said left rear bracket (10) is provided with a left chute along its length direction, and said right rear bracket (11) is provided with a left chute along its length. There is a right chute (25) in the direction, the left slider (12) is slidably set in the left chute, and the right slider (13) is slidably set in the right chute (25). 7. A stroller for children according to claim 1, characterized in that: said locking mechanism comprises a set between said left slider (12) and said left rear bracket (10) The left locking mechanism and the right locking mechanism are arranged between the right sliding piece (13) and the right rear bracket (11). 8. A stroller for children according to claim 1, characterized in that: said rear support (17) comprises a first rear support (26), and said first rear support (26) The second rear strut (27) that crosses and is rotatably connected at the intersection, the upper end of the first rear strut (26) is rotatably connected with the left slider (12), so The lower end of the first rear strut (26) is rotationally connected to the lower portion of the right rear support (11), and the upper end of the second rear strut (27) is connected to the right sliding The member (13) is rotatably connected, and the lower end of the second rear strut (27) is rotatably connected with the lower part of the left rear bracket (10). 9. A stroller for children according to claim 1, characterized in that: a horizontal brace (28) capable of being folded laterally is arranged between the left sliding piece (12) and the right sliding piece (13) ). 10. A stroller for children according to claim 1, characterized in that: the left front wheel assembly (2) is arranged at the lower part of the left front connecting piece (8), and the right front wheel assembly (3) It is arranged at the lower part of the said right front connecting piece (9).

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