CN102530037B - Baby stroller - Google Patents

Abstract

A baby stroller, the stroller frame includes a front wheel connecting frame, a left front bracket whose front part rotates with the front wheel connecting frame, a right front bracket whose front part rotates with the front wheel connecting frame, a front part and a front Left base frame pivotally connected to wheel link, right base frame pivotally connected to front wheel link frame, left pushrod frame pivotally connected to rear of left front frame, rear of right front frame The right push rod frame pivotally connected by the second rotating shaft, the left rear frame whose upper part is pivotally connected with the lower part of the left push rod frame, the right rear frame whose upper part is pivotally connected with the lower part of the right push rod frame, can transversely In the folded support frame, the left bottom frame and the left rear bracket are rotatably arranged, and the right bottom frame and the right rear bracket are rotatably arranged. The invention provides a technical proposal of a new folding concept, and the folded volume is small.

Description

baby cart

technical field

The present invention relates to a stroller for children.

Background technique

The baby stroller in the prior art includes a stroller frame with an unfolded position and a folded position, a front wheel assembly arranged at the bottom front of the stroller frame, and a rear wheel assembly arranged at the bottom of the stroller frame The rear wheel assembly of the department, the frame locking mechanism for locking the cart frame in the unfolded position, and the human body accommodation device arranged on the cart frame. There are many types of existing trolley frames, the number of rods of the cart frame is different, and the connection relationship and connection position between the rods are different, so the folding principles and folding methods are different.

Contents of the invention

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

In order to solve the above technical problems, a technical solution adopted by the present invention is: a baby stroller, including a stroller frame with an unfolded position and a folded position, a front wheel assembly, a left rear wheel assembly, a right rear wheel assembly, In addition to the locking mechanism for locking the cart frame in the unfolded position, and the seat provided on the cart frame, the cart frame includes:

A front wheel connection frame, the front wheel assembly is arranged on the front wheel connection frame;

The left front bracket, the front part of the left front bracket and the front wheel connecting frame can be arranged so that they can rotate in two intersecting plane directions;

The right front bracket, the front part of the right front bracket and the front wheel connecting frame can be arranged to rotate in two intersecting plane directions;

The left underframe, the front part of the left underframe is pivotally connected to the front wheel connecting frame through the axis extending along the vertical axis;

The right underframe, the front part of the right underframe is pivotally connected to the front wheel connecting frame through the shaft extending along the axis line in the up and down direction;

The left push rod frame, the rear part of the left front bracket is pivotally connected to the left push rod frame through the first rotating shaft extending along the left and right directions through the axis line;

The right push rod frame, the rear part of the right front bracket is pivotally connected to the right push rod frame through the second rotating shaft extending along the left and right directions through the axis line;

The left rear bracket, the upper part of the left rear bracket is pivotally connected with the lower part of the left push rod frame through the third rotating shaft extending along the left and right directions of the axis line, and the left bottom bracket is connected with the said left bottom bracket The left rear bracket is set in a rotatable manner;

The right rear bracket, the upper part of the right rear bracket is pivotally connected with the lower part of the right push rod frame through the fourth rotating shaft extending along the left and right directions of the axis line, and the right bottom bracket is connected with the said right bottom bracket The right rear bracket is set in rotation;

A support that can be folded horizontally, the support is formed by intersecting the first bar and the second bar and pivotally connected at the intersection through the fifth rotating shaft, the support is arranged on the Between the left underframe, the right underframe, the left rear bracket, and the right rear bracket, the upper part of the first rod and the left underframe are rotatably arranged through a rotary joint , the lower part of the first rod is set to rotate with the right rear bracket through a rotating joint, and the upper part of the second rod is arranged to rotate with the right bottom frame through a rotating joint, so The lower part of the second rod and the left rear bracket are arranged to rotate through a rotating joint.

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

In some embodiments, the front wheel connecting frame is a U-shaped bar, and the front wheel assembly includes a front wheel body and a front wheel roller, and the front wheel roller is arranged on the Between the two ends of the front wheel connecting frame, the left front bracket and the right front bracket are located on the left and right sides of the front wheel body, and the left underframe and the right underframe are located on the the left and right sides of the front wheel body.

In some embodiments, the left front bracket and the left side of the front wheel connecting frame are rotatably arranged through a rotating joint, and the right front bracket and the right side of the front wheel connecting frame are arranged through The swivel joints are rotationally arranged.

In some embodiments, the front part of the left underframe is pivotally connected to the left side part of the front wheel connecting frame through the seventh rotating shaft, and the front part of the right underframe is connected to the left side of the front wheel connecting frame. The right side of the front wheel connecting frame is pivotally connected by the sixth rotating shaft.

In some embodiments, there is a device between the left underframe, the right underframe and the front wheel connecting frame that prohibits the left underframe when the trolley frame is in the unfolded position. The expansion limiting mechanism that is relatively far away between the frame and the right underframe.

In some embodiments, the left underframe and the left rear bracket are rotatably arranged through a rotation joint, and the right underframe and the right rear bracket are rotatably arranged through a rotation joint; or The left underframe and the left rear bracket are pivotally connected to the rotating shaft extending along the left-right direction through the axis line, and the right underframe and the right rear bracket are pivotally connected along the left-right direction through the axis line. The extended shaft is pivotally connected.

In some embodiments, a horizontally foldable push handle cross brace is provided between the upper part of the left push rod frame and the upper part of the right push rod frame.

The orientation words such as up, down, front, back, etc. mentioned above are defined at the unfolded position of the dining chair frame, and the position of the backrest frame is the upper back.

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, a technical solution 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 solutions, the present invention has the following advantages compared with the prior art: the present invention provides a new technical solution for folding, the left front bracket, the left underframe, the left rear bracket, and the left push rod frame form a connecting rod Mechanism, similarly, the right front bracket, the right underframe, the right rear bracket, and the right push rod frame form a linkage mechanism. When the locking mechanism is unlocked, the left push rod frame and the right push rod frame are turned forward and downward respectively, so that the first The three rotating shafts and the fourth rotating shaft move backward, so that the brackets are folded horizontally, so that the left front bracket, left bottom frame, left rear bracket, left push rod frame, right front bracket, right bottom frame, right rear bracket, right push rod frame Close to each other, the volume is smaller after folding.

Description of drawings

Accompanying drawing 1 is the perspective view of the pushcart frame of the present invention in the unfolded position (installation mode 1 of the bracket);

Accompanying drawing 2 is the perspective view of the cart frame of the present invention in the transition process between the unfolded position and the folded position;

Accompanying drawing 3 is the perspective view of the cart frame of the present invention in a folded position;

Accompanying drawing 4 is the side view of the pushcart frame of the present invention in the unfolded position;

Accompanying drawing 5 is the side view of the stroller frame of the present invention in the conversion process between the unfolded position and the folded position;

Accompanying drawing 6 is the side view of the pushcart frame of the present invention in the unfolded position (the second installation method of the bracket);

Among them: 1. Cart frame; 2. Front wheel assembly; 3. Left rear wheel assembly; 4. Right rear wheel assembly; 5. Front wheel connecting frame; 6. Left front bracket; 7. Right front bracket; 8. Left bottom Frame; 9, right bottom frame; 10, left push rod frame; 11, right push rod frame; 12, left rear support; 13, right rear support; 14, bracing frame; 15, first bar; 16, second Rod; 17, push handle cross brace; 18, left push handle bar; 19, right push handle bar; 21, first revolving joint; 22, second revolving joint; 23, third revolving joint; 24, fourth revolving joint joint; 25, the fifth rotating joint; 26, the sixth rotating joint; 27, the seventh rotating joint; 28, the eighth rotating joint; 31, the first rotating shaft; 32, the second rotating shaft; 33, the third rotating shaft; 34, The fourth rotating shaft; 35, the fifth rotating shaft; 37, the seventh rotating shaft; 38, the sixth rotating shaft.

Detailed ways

As shown in the accompanying drawings, a baby stroller includes a stroller frame 1 with an unfolded position and a folded position, a front wheel assembly 2, a left rear wheel assembly 3, a right rear wheel assembly 4, and is used to push the stroller The frame 1 is locked by a locking mechanism in the unfolded position, a seat provided on the cart frame 1 . The seat may be provided between the left front frame 6 and the right front frame 7 mentioned below.

Cart frame 1 includes:

The front wheel connecting frame 5, the front wheel assembly 2 is arranged on the front wheel connecting frame 5;

The left front bracket 6, the front part of the left front bracket 6 and the front wheel connecting frame 5 can be arranged so that they can rotate in two intersecting plane directions;

The right front bracket 7, the front part of the right front bracket 7 and the front wheel connecting frame 5 can be arranged so that they can rotate in two intersecting plane directions;

The left underframe 8, the front part of the left underframe 8 is pivotally connected with the front wheel connecting frame 5 through the axis extending along the up and down direction;

The right underframe 9, the front part of the right underframe 9 is pivotally connected with the front wheel connecting frame 5 through the axis extending along the up and down direction;

The left push rod frame 10, the rear part of the left front bracket 6 is pivotally connected with the left push rod frame 10 through the first rotating shaft 31 extending along the left and right direction through the axis line;

The right push rod frame 11, the rear part of the right front bracket 7 is pivotally connected with the right push rod frame 11 through the second rotating shaft 32 extending along the left-right direction through the axis line;

Left rear bracket 12, the upper part of left rear bracket 12 and the lower part of left push rod frame 10 are pivotally connected by the third rotating shaft 33 extending along the left and right direction through the axis line, and the left base frame 8 and left rear bracket 12 are rotated Set, the left rear wheel assembly 3 is arranged on the bottom of the left rear support 12;

Right rear bracket 13, the upper part of right rear bracket 13 and the lower part of right push rod frame 11 are pivotally connected by the fourth rotating shaft 34 extending along the left and right directions of the axis line, and the right bottom frame 9 and right rear bracket 13 are rotatably Set, the right rear wheel assembly 4 is arranged on the bottom of the right rear bracket 13;

The support frame 14 capable of being folded laterally is composed of a first bar member 15 and a second bar member 16 intersecting and being pivotally connected at the intersection by a fifth rotating shaft 35 .

Regarding the setting of the bracket 14, the bracket 14 is arranged between the left underframe 8, the right underframe 9, the left push rod frame 10 and the right push rod frame 11, or the bracket 14 can also be arranged on the left underframe 8, the right Between the bottom frame 9, the left rear support 12 and the right rear support 13.

Only the left push rod frame 10 or only the left rear support 12 and the upper part of the first rod 15 are arranged to rotate through the first rotating joint 21. Similarly, only the right push rod frame 11 or only the right rear support 13 The upper part of the second rod 16 is arranged to be rotated through the second rotating joint 22, the lower part of the first rod 15 is arranged to be rotated with the right bottom frame 9 through the third rotating joint 23, and the lower part of the second rod 16 is arranged to be rotated with the third rotating joint 23. The left base frame 8 is rotatably arranged via a fourth rotary joint 24 . As shown in accompanying drawing 1-accompanying drawing 5, in the present embodiment, the first rotating joint 21 is pivotally connected with the bottom of the left push rod frame 10 and the upper part of the left rear bracket 12 through the third rotating shaft 33, and the second rotating joint 22 is pivotally connected with the bottom of the right push rod frame 11 and the top of the right rear bracket 13 through the fourth rotating shaft 34 . There are two axes perpendicular to the space on the first rotary joint 21, the second rotary joint 22, the third rotary joint 23 and the fourth rotary joint 24, so that the two components connected by the rotary joints can be connected to each other The two intersecting planes are arranged to rotate relative to each other, such as between the upper part of the first rod 15 and the left rear bracket 12 . The first rotary joint 21 , the second rotary joint 22 , the third rotary joint 23 and the fourth rotary joint 24 can also be replaced by ball joints.

Regarding the setting of the bracket 14, as shown in accompanying drawing 6, the top of the first rod 15 is arranged to rotate with the left underframe 8 through the rotation joint, and the bottom of the first rod 15 is connected with the right rear bracket 13 through the rotation joint. Arranged in rotation, the upper part of the second rod 16 is arranged in rotation with the right underframe 9 through the rotation joint, and the lower part of the second rod 16 is arranged in rotation with the left rear bracket 12 through the rotation joint.

The locking mechanism can be arranged at the rotational connection of the left push rod frame 10 and the left front support 6, the rotational connection of the right push rod frame 11 and the right front support 7, or can be arranged at the rotational connection of the left push rod frame 10 and the left rear support 12. The pivot connection between the right push rod frame 11 and the right rear bracket 13 can also be arranged at the pivot connection between the first rod 15 and the second rod 16 . And the specific structure of the locking mechanism is not the gist of the present invention, as long as it can lock between two rotating parts, it will not be repeated here.

Regarding the molding of the cart frame 1 front, the front wheel connecting frame 5 is a U-shaped rod, and the front wheel assembly 2 includes a front wheel body and a front wheel roller, and the front wheel roller is arranged on the front wheel connecting frame 5. Between the two ends, the left front support 6 and the right front support 7 are positioned at the left and right sides of the front wheel body, and the left chassis 8 and the right chassis 9 are positioned at the left and right sides of the front wheel body, and the front wheel body cannot turn. It can also be that the front wheel joint is connected to the front wheel joint by a pivot extending along the vertical direction on the front wheel connecting frame 5, and the front wheel roller shaft is arranged on the front wheel joint, so that the front wheel body can rotate universally.

As shown in accompanying drawing 1, accompanying drawing 2, left front support 6 and the left side part of front-wheel connecting frame 5 are arranged to be rotated by the 5th pivot joint 25, and right front support 7 and the right side part of front-wheel connecting frame 5 pass through the 5th. The six revolving joints 26 are rotatably arranged. Not shown in the figure, it may also be pivotally connected with a swivel joint on the front wheel connecting frame 5, and the front portion of the left front bracket 6 and the front portion of the right front bracket 7 are respectively pivotally connected with the swivel joint.

The front portion of the left underframe 8 is pivotally connected with the left side portion of the front wheel connecting frame 5 through the seventh rotating shaft 37, and the front portion of the right underframe 9 is connected with the right side portion of the front wheel connecting frame 5 through the sixth rotating shaft 38. Pivot connection. Not shown in the figure, it is also possible that the front portion of the left underframe 8 is pivotally connected with the front portion of the right underframe 9 and the rear portion of the front wheel connecting frame 5 by a rotating shaft. Between the left underframe 8, the right underframe 9 and the front wheel connecting frame 5, a space-limiting mechanism that prohibits the relative distance between the left underframe 8 and the right underframe 9 when the trolley frame 1 is in the unfolded position, that is, The expansion limit mechanism plays the role of expansion limit, and the specific structure of the expansion limit structure is not limited. For example, two protrusions can be set on the front wheel connecting frame 5. When the cart frame 1 is in the expanded position , the front part of the left underframe 8 and the front part of the right underframe 9 respectively abut on the corresponding protrusions, so as not to limit further rotation, so that the stroller frame 1 is more stable in the unfolded position.

The connection relationship between the left underframe 8 and the right underframe 9 and the left rear support 12 and the right rear support 13 respectively. As shown in accompanying drawing 1-accompanying drawing 5, left base frame 8 and left rear bracket 12 are arranged to rotate through the seventh rotation joint 27, and right underframe 9 and right rear bracket 13 are arranged to rotate through the eighth rotation joint 28. , similarly, the seventh rotary joint 27 and the eighth rotary joint 28 can be replaced by ball joints. Alternatively, as shown in accompanying drawing 6, the left underframe 8 and the left rear bracket 12 are pivotally connected to each other through a rotating shaft extending along the left and right directions through the axis line, and the right underframe 9 and the right rear bracket 13 are connected through the axis line along the axis. The rotating shafts extending in the left and right directions are pivotally connected.

As shown in accompanying drawings 1 to 3 , between the upper part of the left push rod frame 10 and the upper part of the right push rod frame 11 , there is a horizontally foldable push handle cross brace 17 . This push handle cross brace 17 can be to comprise left push handle bar 18, the right push handle bar 19 that left push bar bar 18 is pivotally connected, and one end of left push bar bar 18 is pivoted with the upper part of left push bar frame 10 Connect, one end of the right push rod 19 is pivotally connected with the top of the right push rod frame 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 (8)

1. a doll carriage, comprise there is the go-cart vehicle frame (1), front component (2), left rear wheel assembly (3), off hind wheel assembly (4) of expanded position and folding position, for described go-cart vehicle frame (1) being locked in to lockout mechanism under expanded position, being arranged at the seat on described go-cart vehicle frame (1), it is characterized in that: described go-cart vehicle frame (1) comprising:

Front-wheel link span (5), described front component (2) is arranged on described front-wheel link span (5);

Left front support (6), the front portion of described left front support (6) and described front-wheel link span (5) can arrange rotatedly on two crossing in-planes;

Right front support (7), the front portion of described right front support (7) and described front-wheel link span (5) can arrange rotatedly on two crossing in-planes;

Left underframe (8), the front portion of described left underframe (8) is connected with the rotating shaft phase pivot that described front-wheel link span (5) extends along above-below direction by axial line;

Right underframe (9), the front portion of described right underframe (9) is connected with the rotating shaft phase pivot that described front-wheel link span (5) extends along above-below direction by axial line;

Left push-rod frame (10), the rear portion of described left front support (6) is connected with the first rotating shaft (31) phase pivot that described left push-rod frame (10) extends along left and right directions by axial line;

Right push-rod frame (11), the rear portion of described right front support (7) is connected with the second rotating shaft (32) phase pivot that described right push-rod frame (11) extends along left and right directions by axial line;

Left back support (12); the top of described left back support (12) is connected with the 3rd rotating shaft (33) phase pivot that extend along left and right directions by axial line the bottom of described left push-rod frame (10), and described left underframe (8) arranges rotatedly with described left back support (12);

Right back support (13); the top of described right back support (13) is connected with the 4th rotating shaft (34) phase pivot that extend along left and right directions by axial line the bottom of described right push-rod frame (11), and described right underframe (9) arranges rotatedly with described right back support (13);

Support that can be laterally folded (14), described support (14) is intersected and is connected and composed by the 5th rotating shaft (35) phase pivot at infall by the first rod member (15) and the second rod member (16), described support (14) is arranged at described left underframe (8), described right underframe (9), between described left back support (12) and described right back support (13), the top of described the first rod member (15) and described left underframe (8) arrange rotatedly by rotary joint, the bottom of described the first rod member (15) and described right back support (13) arrange rotatedly by rotary joint, the top of described the second rod member (16) and described right underframe (9) arrange rotatedly by rotary joint, the bottom of described the second rod member (16) and described left back support (12) arrange rotatedly by rotary joint.

2. doll carriage according to claim 1, is characterized in that: described left rear wheel assembly (3) is arranged at the bottom of described left back support (12), and described off hind wheel assembly (4) is arranged at the bottom of described right back support (13).

3. doll carriage according to claim 1, it is characterized in that: described front-wheel link span (5) is for being U-shaped rod member, described front component (2) comprises front-wheel body, front-wheel roller bearing, described front-wheel roller bearing is arranged between the both ends of described front-wheel link span (5), the left and right sides of the front-wheel body described in described left front support (6) is positioned at described right front support (7), the left and right sides of the front-wheel body described in described left underframe (8) is positioned at described right underframe (9).

4. doll carriage according to claim 1, it is characterized in that: described left front support (6) arranges by rotary joint (25) rotatedly with the left side of described front-wheel link span (5), described right front support (7) arranges by rotary joint (26) rotatedly with the right side of described front-wheel link span (5).

5. according to the doll carriage described in any one in claim 1,3,4, it is characterized in that: the front portion of described left underframe (8) is connected by the 7th rotating shaft (37) phase pivot with the left side of described front-wheel link span (5), the front portion of described right underframe (9) is connected by the 6th rotating shaft (38) phase pivot with the right side of described front-wheel link span (5).

6. doll carriage according to claim 1, is characterized in that: between described left underframe (8), described right underframe (9) and described front-wheel link span (5), be provided with when described go-cart vehicle frame (1) under expanded position, forbid between described left underframe (8) and described right underframe (9) relative away from expansion stop gear.

7. doll carriage according to claim 1, it is characterized in that: described left underframe (8) arranges by rotary joint (27) rotatedly with described left back support (12), described right underframe (9) arranges by rotary joint (28) rotatedly with described right back support (13); Or described left underframe (8) is connected with the rotating shaft phase pivot that described left back support (12) extends along left and right directions by axial line, described right underframe (9) is connected with the rotating shaft phase pivot that described right back support (13) extends along left and right directions by axial line.

8. doll carriage according to claim 1, is characterized in that: between the top of described left push-rod frame (10) and the top of described right push-rod frame (11), be provided with can be laterally folded handle stull (17).

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