CN101306695A - Self-supporting mechanism of foldable stroller and foldable stroller having the same - Google Patents

Abstract

A self-supporting mechanism for a foldable stroller, comprising a front wheel bracket, a curved connecting piece whose upper end is connected to the lower end of the front wheel bracket, and a front wheel assembly arranged at the lower end of the curved connecting piece. The front wheel assembly is located below the front wheel bracket, and a rod is slidably arranged along the length direction of the front wheel bracket, and the length direction of the rod is the same as the length direction of the front wheel bracket. Consistently, when the stroller is in the folded state, the lower end of the front wheel assembly and the rod touches the ground to form a support for the foldable stroller. Since the bar slides relative to the front wheel support, when the bar slides to the ground at the same time as the front wheels, it will support the folded stroller, so the structure of the self-supporting mechanism is relatively simple, and the structure of the stroller including the self-supporting mechanism is also simple, and After folding, the volume is smaller and neater.

Description

Self-supporting mechanism of foldable stroller and foldable stroller having the same

technical field

The invention relates to a baby carriage, in particular to a self-supporting mechanism of the baby carriage and a foldable baby carriage including the self-supporting mechanism.

Background technique

The self-supporting mechanism of the stroller usually works after the stroller is folded. The self-supporting mechanism of the stroller enables the stroller to stand up even when it is in a folded state, which is convenient for the carrier to take. In the prior art, there are many kinds of self-supporting mechanisms for foldable baby carriages. Some are supported by the lower end of the rod and the rear wheel on the ground; some are supported by the front wheel and the rear wheel at the same time; A supporting leg is additionally added on the frame, and the supporting leg and the front wheel or the rear wheel touch the ground to form a support for the stroller. These self-supporting mechanisms have the following defects at present: either the structure of the self-supporting mechanism itself is more complicated, or after the self-supporting mechanism is applied to the foldable stroller, the structure of the stroller is more complicated; The small size of the back and the neatness after folding cannot be both.

Contents of the invention

The technical problem to be solved by the present invention is to provide a self-supporting mechanism of a foldable stroller with a simpler structure, and the present invention also provides a foldable stroller with a simpler structure including the self-supporting mechanism.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A self-supporting mechanism for a foldable stroller, comprising a front wheel bracket, a curved connecting piece whose upper end is connected to the lower end of the front wheel bracket, and a front wheel assembly arranged at the lower end of the curved connecting piece. The front wheel assembly is located below the front wheel bracket, and a rod is slidably arranged along the length direction of the front wheel bracket, and the length direction of the rod is the same as the length direction of the front wheel bracket. Consistently, when the baby carriage is converted from the open state to the folded state, the rod slides downward relative to the front wheel support until the baby carriage is in the folded state, and the front wheel assembly and the lower end of the rod are both on the ground Forming a support for the foldable stroller, the self-supporting mechanism can be applied to a variety of frames with different folding principles.

The front wheel bracket is a pipe with a lumen, the curved connector has a through hole communicating with the lumen of the front wheel bracket, and the rod can be slidably inserted into the front wheel bracket or the rods can be slidably inserted into the lumen of the front wheel bracket and the through hole, preferably, the visual effect is better, and the rods appear less and neater. It can also be realized that the rod is arranged side by side with the front wheel bracket.

When the stroller is in the open state, the lower end of the rod is located in the tube cavity of the front wheel bracket or in the through hole; when the stroller is in the folded state, the lower end of the rod extends out of the via holes described above.

The rod is a push rod of the stroller.

A foldable stroller comprising the above self-supporting mechanism, which has an open state and a folded state, comprises a front wheel bracket, a rear wheel bracket, a seat bar rotatably connected to the rear wheel bracket, and is used to hold the baby stroller The locking device locked in the open state, the front wheel assembly, the rear wheel assembly arranged at the bottom of the rear wheel bracket, the lower end of the front wheel bracket is connected with the upper end of the curved connector, the front wheel The assembly is arranged at the lower end of the curved connector, and the front wheel assembly is located below the front wheel bracket. When the stroller is in an open state, the front wheel assembly and the rear wheel assembly touch the ground Form a support for the collapsible stroller,

The front wheel bracket is slidably provided with a rod along its length direction, the length direction of the rod is consistent with the length direction of the front wheel bracket, and the front end of the seat rod is connected to the rod The upper end of the rear wheel bracket is rotatably connected with the upper end of the front wheel bracket. When the stroller is transformed from the open state to the folded state, the rod is relatively The front wheel bracket slides down, and the front end of the seat bar slides down together with the bar, so that the front wheel assembly and the rear wheel assembly are drawn together. When the stroller is in a folded state, the The front wheel assembly and the lower end of the bar are grounded to form a support for the foldable stroller.

The front wheel bracket is a pipe with a lumen, the curved connector has a through hole communicating with the lumen of the front wheel bracket, and the rod can be slidably inserted into the front wheel bracket or the rod can be slidably inserted into the lumen of the front wheel bracket and the through hole; the front wheel bracket has a sliding groove along its length, or the Both the front wheel bracket and the curved connecting piece are provided with sliding grooves along the length direction of the front wheel bracket, and the front end of the seat bar and the rod member pass through the sliding groove. The slots are rotationally connected.

When the stroller is in the open state, the lower end of the rod is located in the tube cavity of the front wheel bracket or in the through hole; when the stroller is in the folded state, the lower end of the rod extends out of the via holes described above.

The rod is a push rod of the stroller.

An adjustment handle is rotatably connected to the rod, and a locking mechanism is arranged between the adjustment handle and the rod. After the locking mechanism is unlocked, the adjustment handle is rotated relative to the rod so as to adjust the height of the stroller. When the stroller is in the folded state, the adjustment handle can also be folded relative to the rod.

Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: since the bar slides relative to the front wheel bracket, when the bar slides to the ground at the same time as the front wheel, it will support the folded stroller, so the self-supporting The structure of the mechanism is relatively simple, and the structure of the stroller including the self-supporting mechanism is also simple, and the folded volume is smaller and neater.

Description of drawings

Accompanying drawing 1 is the expanded front view of the present invention;

Accompanying drawing 2 is the expanded perspective view of the present invention;

Accompanying drawing 3 is a half-folded front view of the present invention;

Accompanying drawing 4 is a half-folded perspective view of the present invention;

Accompanying drawing 5 is the folding front view of the present invention;

Accompanying drawing 6 is the folding front view of the present invention;

Accompanying drawing 7 is the enlarged view of place A of accompanying drawing 1;

Accompanying drawing 8 is the enlarged view of B of accompanying drawing 4.

Among them: 1. Front wheel bracket; 2. Rear wheel bracket; 3. Rod; 4. Seat rod; 5. Front wheel joint; 6. First shaft; 7. Second shaft; 8. Third shaft; 9. Through hole; 10, adjusting handle; 11, slide groove; 12, front wheel assembly; 13, rear wheel assembly.

Detailed ways

As shown in accompanying drawing 1-accompanying drawing 7, a self-supporting mechanism of a collapsible stroller comprises a front wheel bracket 1, a curved connector 5 whose upper end is connected to the lower end of the front wheel bracket 1, and is arranged on the front wheel bracket 1. The front wheel assembly 12 at the lower end of the curved connector 5, the front wheel assembly 12 is located below the front wheel bracket 1, and the front wheel bracket 1 is slidably arranged along its length direction Rod 3, the length direction of the rod 3 is consistent with the length direction of the front wheel bracket 1, when the stroller is in the folded state, the front wheel assembly 12 and the lower end of the rod 3 touch the ground to form a Support for collapsible strollers.

The front wheel bracket 1 is a pipe with a lumen, the curved connector 5 has a through hole 9 communicating with the lumen of the front wheel bracket 1, the rod 3 can be slidably inserted into the The lumen of the front wheel bracket 1, or the rod 3 can be slidably inserted into the lumen of the front wheel bracket 1 and the through hole 9.

When the stroller is in the open state, the lower end of the rod 3 is located in the tube cavity of the front wheel bracket 1 or in the through hole; when the stroller is in the folded state, the lower end of the rod 3 Protrude through the said through hole 9.

A foldable stroller comprising the self-supporting mechanism of claim 1, which has an open state and a folded state, comprising a front wheel support 1, a rear wheel support 2, a seat post 4 rotatably connected to the rear wheel support 2, A locking device for locking the stroller in an open state, a front wheel assembly 12, a rear wheel assembly 13 arranged at the bottom of the rear wheel bracket 2, the lower end of the front wheel bracket 1 is connected with a curved The upper end of the connector 5 and the front wheel assembly 12 are arranged at the lower end of the curved connector 5, and the front wheel assembly 12 is located below the front wheel bracket 1. When the stroller is in an open state Next, the front wheel assembly 12 and the rear wheel assembly 13 are on the ground to form a support for the foldable stroller,

The front wheel bracket 1 is slidably provided with a rod 3 along its length direction, the length direction of the rod 3 is consistent with the length direction of the front wheel bracket 1, and the front end of the seat bar 4 is It is rotatably connected with the rod 3, and the upper end of the rear wheel bracket 2 is rotatably connected with the upper end of the front wheel bracket 1. When the stroller is in a folded state, the front wheel The assembly 12 and the lower end of the rod 3 touch the ground to form a support for the foldable stroller.

As shown in accompanying drawing 8, described front wheel support 1 is the tubular member that has lumen, has the through hole 9 that communicates with the lumen of front wheel support 1 on the described curved connector 5, and described bar 3 can be slidably inserted into the lumen of the front wheel bracket 1, or the rod 3 can be slidably inserted into the lumen of the front wheel bracket 1 and the through hole 9; Both the front wheel bracket 1 and the curved connector 5 are provided with sliding grooves 11 along the length direction of the front wheel bracket 1, and the front end of the seat bar 4 is connected to the rod member 3 are rotatably connected through the sliding groove 11.

When the stroller is in the open state, the lower end of the rod 3 is located in the tube cavity of the front wheel bracket 1 or in the through hole 9; when the stroller is in the folded state, the lower end of the rod 3 The part protrudes from the said through hole 9.

The rod 3 is the push rod of the stroller.

An adjustment handle 10 is rotatably connected to the rod 3 , and a locking mechanism is provided between the adjustment handle 10 and the rod 3 .

The location words such as front and rear involved in the present invention are defined when the baby carriage is in an open state, the position of the front wheel on the baby carriage is the front, and the position of the rear wheel is the rear.

Claims (9)

1. A self-supporting mechanism for a foldable stroller, comprising a front wheel bracket (1), a curved connecting piece (5) whose upper end is connected to the lower end of the front wheel bracket (1), The front wheel assembly (12) at the lower end of the shaped connector (5), the front wheel assembly (12) is located below the front wheel bracket (1), and it is characterized in that: the front wheel bracket (1) ) is slidably provided with a rod (3) along its length direction, the length direction of the rod (3) is consistent with the length direction of the front wheel bracket (1), when the stroller is in a folded state, the The lower end of the front wheel assembly (12) and the rod (3) touches the ground to form a support for the foldable stroller. 2. The self-supporting mechanism of the foldable stroller according to claim 1, characterized in that: the front wheel support (1) is a pipe with a lumen, and the curved connector (5) has a The through hole (9) communicated with the lumen of the wheel bracket (1), the rod (3) can be slidably inserted in the lumen of the front wheel bracket (1), or the rod ( 3) Slidably inserted into the lumen of the front wheel bracket (1) and the through hole (9). 3. The self-supporting mechanism of the foldable stroller according to claim 2, characterized in that: when the stroller is in the open state, the lower end of the rod (3) is located in the tube cavity of the front wheel bracket (1) or Located in the through hole, when the stroller is in a folded state, the lower end of the rod (3) protrudes out of the through hole (9). 4. The self-supporting mechanism of the foldable stroller according to claim 1, characterized in that: the rod (3) is a push rod of the stroller. 5. A foldable stroller comprising the self-supporting mechanism of claim 1, which has an open state and a folded state, comprising a front wheel support (1), a rear wheel support (2), and said rear wheel support (2) A seat bar (4) connected in rotation, a locking device for locking the stroller in an open state, a front wheel assembly (12), a rear wheel assembly (13) arranged at the lower part of the rear wheel bracket (2) ), the lower end of the front wheel bracket (1) is connected to the upper end of the curved connector (5), and the front wheel assembly (12) is arranged on the lower end of the curved connector (5) , the front wheel assembly (12) is located below the front wheel bracket (1), when the stroller is in an open state, the front wheel assembly (12) and the rear wheel assembly (13) touch the ground Forms a support for the collapsible stroller, It is characterized in that a rod (3) is slidably arranged on the front wheel bracket (1) along its length direction, and the length direction of the rod (3) is aligned with the length direction of the front wheel bracket (1). Correspondingly, the front end of the seat bar (4) is rotationally connected with the rod (3), and the upper end of the rear wheel bracket (2) is connected with the front wheel bracket (1) The upper ends of the front wheel assembly (12) and the lower end of the rod (3) touch the ground to form a support for the foldable baby carriage when the baby carriage is in a folded state. 6. The foldable stroller according to claim 5, characterized in that: said front wheel bracket (1) is a tube with a lumen, and said curved connecting piece (5) is equipped with a front wheel bracket ( 1) through the through hole (9) that communicates with the lumen, the rod (3) can be slidably inserted into the lumen of the front wheel bracket (1), or the rod (3) can Slidingly inserted in the lumen of the front wheel bracket (1) and the through hole (9); the front wheel bracket (1) has a sliding groove (11) along its length, or the The front wheel bracket (1) and the curved connector (5) are provided with slide grooves (11) along the length direction of the front wheel bracket (1), and the seat bar (4 ) is rotationally connected with the rod (3) through the sliding groove (11). 7. The foldable stroller according to claim 6, characterized in that: when the stroller is in an open state, the lower end of the rod (3) is located in the tube cavity of the front wheel bracket (1) or in the In the through hole (9), when the stroller is in the folded state, the lower end of the rod (3) protrudes out of the through hole (9). 8. The foldable stroller according to claim 5, characterized in that the rod (3) is a push rod of the stroller. 9. The foldable stroller according to claim 5, characterized in that: the rod (3) is rotatably connected with an adjustment handle (10), and the adjustment handle (10) is connected with the rod ( 3) There is a locking mechanism between them.

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