CN201258009Y - Foldable pushing handle pole of baby carriage - Google Patents

Abstract

A foldable push bar of a stroller comprises a pair of left and right longitudinal bars and a cross bar spanning between the top ends of the pair of longitudinal bars. The outer ends of the cross bars are respectively connected to the top ends of the same side of the longitudinal bars around a rotation axis perpendicular to the plane where the pair of longitudinal bars are located. The cross bar includes at least two connecting rods which are rotationally connected in sequence, and the axis of rotation between each adjacent connecting rod is perpendicular to the plane where the pair of longitudinal rods are located. The push handle bar has a folded state and an unfolded state, and the push handle bar also includes an unfolding locking mechanism that fixes the push handle bar in the unfolded state. After the push handle bar is folded, the horizontal bar and the longitudinal bar are located in the same plane, and the three-dimensional space at the front and back is not occupied, so the structure is compact and the occupied space is small. Moreover, the structure is simple and easy to operate, and the folding can be realized only through 3 or 4 simple hinge parts.

Description

Foldable push handle bar for stroller

technical field

The utility model relates to a foldable push handle bar of a baby carriage.

Background technique

In the prior art, there is a foldable push handle bar of a baby carriage composed of a pair of longitudinal bars and a cross bar spanning between the top ends of the longitudinal bars. Rotate and connect with each other around the axial direction, and divide the cross bar into three sections that are also rotatably connected around the axial direction of the longitudinal bars, so that the distance between a pair of longitudinal bars can be reduced by the rotation between the parts. This embodiment is described in detail in Japanese Patent No. 3027803.

However, the push handle folded in this way has a U-shaped portion bent forward or backward, which takes up a large space. Moreover, this folding method additionally adds a rotating connection part on the vertical rod, which has high implementation cost and is inconvenient to operate.

Contents of the invention

The purpose of the utility model is to provide a foldable push handle bar of a baby carriage which takes up little space after being folded and has a simple structure and is easy to operate.

For achieving the above object, the technical scheme that the utility model adopts is:

A foldable push bar of a stroller comprises a pair of left and right longitudinal bars and a cross bar spanning between the top ends of the pair of longitudinal bars. The outer ends of the horizontal bars are respectively connected to the top ends of the longitudinal bars on the same side around a rotation axis perpendicular to the plane where the pair of longitudinal bars are located. The cross bar includes at least two connecting rods which are rotationally connected in sequence, and the axis of rotation between each adjacent connecting rod is perpendicular to the plane where the pair of longitudinal rods are located. The push handle bar has a folded state and an unfolded state, and the push handle bar also includes an unfolding locking mechanism that fixes the push handle bar in the unfolded state.

When the push handle bar is in a folded state, each of the connecting rods is sandwiched between the pair of longitudinal rods.

The connecting rod includes a pair of outer cross bars and a grip bar spanning between the inner ends of the pair of outer cross bars. The outer cross bar includes a straight bar part and an L-shaped bent bar part, and the outer end of the bent bar part is rotatably connected with the longitudinal bar. When the push handle bar is in an unfolded state, the bent bar part The extension direction of the outer end portion is the same as the extension direction of the longitudinal rod. The deployment locking mechanism is arranged on the handle bar.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages:

1. The folded horizontal bar and the vertical bar are located in the same plane, and will not occupy the three-dimensional space at the front and rear, so the structure is compact and the space occupied is small.

2. The structure is simple and easy to operate, and the folding can be realized only through 3 or 4 simple hinge parts.

Description of drawings

Accompanying drawing 1 is the front view of the utility model under the expanded state;

Accompanying drawing 2 is the front view of the utility model in the folded state;

Accompanying drawing 3 is the perspective view of the utility model under the expanded state;

Accompanying drawing 4 is the perspective view of the utility model in another direction in the unfolded state

Among them: 1. Longitudinal rod; 2. Cross rod; 21. Outer cross rod; 22. Grip rod; 23. Straight rod part; 24. Bending rod part; 3. Unfolding locking mechanism; 31. Lock pin, 32. Lock block ; 33, the spring; 34, the button; 35, the first slope; 36, the second slope.

Detailed ways

Specific embodiments of the present utility model are described below in conjunction with accompanying drawings.

As shown in accompanying drawing 1 and accompanying drawing 2, this foldable push bar is made up of a pair of longitudinal bars 1 and a cross bar 2 spanning between the top ends of the pair of longitudinal bars 1, wherein the cross bar 2 includes A pair of outer cross bars 21 and a grip bar 22 spanning between inner ends of the pair of outer cross bars 21 .

Both the outer cross bar 21 and the longitudinal bar 1 and between the outer cross bar 21 and the grip bar 22 are respectively rotatably connected, and the rotation axes are all perpendicular to the plane where the longitudinal bar 1 is located. Therefore, hold the grip bar 22 and pull down the cross bar 1 toward the direction sandwiched between the longitudinal bars 1, then the push bar can be folded from the unfolded state shown in Figure 1 to the folded state shown in Figure 2 .

An unfolding locking mechanism is provided on the grip bar 22 . The unfolding locking mechanism in this embodiment is shown in FIG. 3 and FIG. 4 , and includes a locking pin 31 slidably disposed on the handle bar 22 and a locking block 32 protrudingly disposed at the inner end of the outer cross bar 21 . When the unfolding locking mechanism is in the locking state, the locking pin 31 is in conflict with the locking block 32 , which prevents the relative rotation between the grip bar 22 and the outer cross bar 21 .

A pair of locking pins 31 respectively located at two ends of the handle bar 22 are in contact with each other, and the locking pins 31 are pushed to the locked position by a spring 33 .

A button 34 is also arranged on the grip bar 22 , and a first slope 35 and a second slope 36 are respectively arranged on the button 34 and the locking pin 31 . When the button 34 is pressed down, the first inclined surface 35 and the second inclined surface 36 collide with each other and slide with the locking pin 31 , so that the elastic force of the spring 33 disappears, and the locking pin 31 and the locking block 32 are separated. At this time, the grip bar 22 and the outer cross bar 21 can be folded, so that the push handle bar can be folded as a whole.

In order to make the structure of the push handle bar more stable, the cross bar 2 is made into a U shape. That is, as shown in accompanying drawing 1 and accompanying drawing 2, outer cross bar 21 is made of straight bar part 23 and L-shaped bent bar part 24, and the outer end of bent bar part 24 is rotatably connected with the top end of longitudinal bar 1. , so that when the push handle bar is unfolded, the bent bar portion 24 is located in the extending direction of the longitudinal bar 1 . This structure can enhance the stability of the push handle bar in the unfolded state. In the unfolded state, the outer end of the cross bar 2 is coaxial with the top end of the longitudinal bar 1, and there is no angle between the bar and the bar. And in the folded state, as shown in accompanying drawing 2, between the left and right pair of bent bar parts 24, draw close to each other towards the middle, make the size of the push handle bar in the width direction can be folded to be substantially the same as the width size of the grip bar 22 Likewise, this increases the stability of the push bar in the folded state.

As mentioned above, we have fully described according to the purpose of the utility model, but the utility model is not limited to the above-mentioned embodiment and implementation method. Practitioners in the relevant technical fields can make different changes and implementations within the scope permitted by the technical ideas of the present utility model.

Claims (5)

1. A foldable push handle bar for a stroller, comprising a pair of left and right longitudinal bars (1) and a cross bar (2) spanning between the top ends of the pair of longitudinal bars (1), characterized in that: The outer ends of the cross bars (2) are respectively connected to the top ends of the same side of the longitudinal bars (1) around the rotation axis perpendicular to the plane where the pair of longitudinal bars (1) are located, The cross bar (2) comprises at least two connecting rods which are rotationally connected in sequence, and the axis of rotation between each adjacent connecting rod is parallel to the plane where the pair of longitudinal rods (1) are located. vertical, The push handle bar has a folded state and an unfolded state, and the push handle bar also includes an unfolding locking mechanism (3) for fixing the push handle bar in the unfolded state. 2. The foldable push handle bar of the stroller according to claim 1, characterized in that: when the push handle bar is in the folded state, each of the connecting rods is sandwiched between the pair of longitudinal bars (1) between. 3. The foldable push handle bar of the stroller according to claim 1, characterized in that: the connecting rod comprises a pair of outer cross bars (21) and the inner ends of the pair of outer cross bars (21) Grip bar (22) between the parts. 4. The foldable push handle bar of the stroller according to claim 3, characterized in that: the outer cross bar (21) includes a straight bar part (23) and an L-shaped bent bar part (24), the bent bar The outer end of the part (24) is rotatably connected with the longitudinal bar (1). When the push handle bar is in the unfolded state, the extension direction of the outer end of the curved bar part (24) is in line with the The direction of extension of the longitudinal rods (1) is the same. 5. The foldable push handle bar of a stroller according to claim 3, characterized in that: said unfolding locking mechanism (3) is arranged on said handle bar (22).

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