A foldable baby stroller frame and a baby stroller provided with the frame

Abstract

The present invention discloses a foldable baby carriage frame and a baby carriage provided with the frame, wherein the frame comprises a rider, a front foot, a rear foot, a first connecting member, a second connecting member, a third connecting member, a fourth connecting member and a fifth connecting member, wherein the first connecting member and the second connecting member are pivotally connected to different positions of the rider at the upper sides, and pivotally connected to different positions of the rear foot at the lower sides, so that the rider, the first and second connecting members and the rear foot form a four-bar structure; the front side of the third connecting member and the front side of the fifth connecting member are pivotally connected to different positions of the front foot, and the rear side of the third connecting member is pivotally connected to the second connecting member; the fourth connecting member is cross-pivoted with the third connecting member, and the upper side of the fourth connecting member is pivotally connected to the first connecting member, and the lower side is pivotally connected to the rear side of the fifth connecting member, so that the front foot, the third, the fourth and the fifth connecting members also form a four-bar structure, and the two connected four-bar structures enable the components to be smoothly linked when folded, and the volume is small after folding, which is convenient to carry.

Description

Technical Field

[0001] The present invention relates to the field of baby products, and in particular to a foldable stroller frame and a stroller provided with the frame. Background Art

[0002] Strollers are widely used due to their convenience. Especially with the relaxation of the current second-child policy, there are more and more children, so the demand for strollers is increasing. Moreover, the performance requirements for strollers are also getting higher and higher, especially in terms of ease of operation and portability.

[0003] Generally, a stroller includes a foldable frame, that is, the frame can be switched between an unfolded state and a folded state. The stroller also includes a locking mechanism that can lock the frame in the unfolded state. When the stroller is locked in the unfolded state, a child can sit or lie in the stroller seat; when not in use, after unlocking the locking mechanism, the frame can be folded. When folding, generally parents hold the child with one hand and fold the frame with the other hand, so the folding operation needs to be easy and labor-saving, that is, the components need to be smoothly linked when the frame is folded, so as not to be laborious.

[0004] In addition, many times, parents will travel with their children. At this time, the stroller needs to be folded and put into the trunk of a car or even taken on an airplane, and this requires the stroller to have a very small volume after folding for easy carrying.

[0005] The structure of the frame is an important factor for the ease of folding operation of the frame and the volume after folding. Summary of the Invention

[0006] The purpose of the present invention is to provide a foldable stroller frame and a stroller provided with the frame, which have an easy and labor-saving folding operation and a small volume after folding for easy carrying.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is:

[0008] A foldable stroller frame includes a handlebar, front legs, rear legs, a first connecting member, a second connecting member, a third connecting member, a fourth connecting member, and a fifth connecting member. The upper sides of the first connecting member and the second connecting member are pivotally connected to different positions of the handlebar, and the lower sides are pivotally connected to different positions of the rear legs, so that the handlebar, the first connecting member, the second connecting member, and the rear legs form a four-bar linkage structure; the front sides of the third connecting member and the fifth connecting member are pivotally connected to different positions of the front legs, and the rear side of the third connecting member is pivotally connected to the second connecting member; the fourth connecting member is cross-pivotally connected to the third connecting member, and the upper side of the fourth connecting member is pivotally connected to the first connecting member, and the lower side is pivotally connected to the rear side of the fifth connecting member, so that the front legs, the third connecting member, the fourth connecting member, and the fifth connecting member also form a four-bar linkage structure.

[0009] The upper side of the first connecting member is pivotally connected to the rider through a first pivot, and the lower side is pivotally connected to the rear foot through a second pivot. The upper side of the second connecting member is pivotally connected to the rider through a third pivot, and the lower side is pivotally connected to the rear foot through a fourth pivot. The first pivot is located above the third pivot, and the second pivot is located in front of the fourth pivot.

[0010] The rear side of the third connecting member is pivotally connected to the second connecting member through a fifth pivot, and the fifth pivot is located between the third pivot and the fourth pivot.

[0011] The front side of the third connecting member is pivotally connected to the upper side of the front foot through a sixth pivot. The front side of the fifth connecting member is pivotally connected to the front foot through a seventh pivot, and the sixth pivot is located above the seventh pivot.

[0012] The upper side of the fourth connecting member is pivotally connected to the first connecting member through an eighth pivot, and the eighth pivot is located between the first pivot and the second pivot.

[0013] The fourth connecting member is cross-pivotally connected to the third connecting member through a ninth pivot. The lower side of the fourth connecting member is pivotally connected to the rear side of the fifth connecting member through a tenth pivot, and the ninth pivot is located above the tenth pivot.

[0014] The third connecting member is configured to be connected to a seat; or, the third connecting member is configured to be a seating support member of a seat.

[0015] The front lower side of the front foot is connected with a front wheel, and the rear lower side of the rear foot is connected with a rear wheel.

[0016] A baby carriage frame includes the above-mentioned foldable baby carriage frame.

[0017] The beneficial effects of the present invention are as follows:

[0018] The foldable baby carriage frame of the present invention is formed into two connected four-bar link structures. Therefore, when folding the foldable baby carriage frame of the present invention and the baby carriage provided with this frame, the components are linked very smoothly, so the folding operation is easy and labor-saving; in addition, after folding, the components of the frame are relatively close to each other, so that the volume of the folded frame is very small, thus facilitating carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic plan view of the foldable baby carriage frame of the present invention in an unfolded state;

[0020] Figure 2 It is a schematic three-dimensional view of the foldable baby carriage frame of the present invention in an unfolded state;

[0021] Figure 3 It is a schematic plan view of the foldable baby carriage frame of the present invention during the folding process;

[0022] Figure 4 This is a three-dimensional schematic diagram of the foldable stroller frame of the present invention during the folding process;

[0023] Figure 5 This is a planar schematic diagram of the foldable stroller frame of the present invention in the folded state;

[0024] Figure 6 This is a three-dimensional schematic diagram of the foldable stroller frame of the present invention in the folded state. Detailed implementation manners

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] As Figures 1 to 6 shown, the foldable stroller frame of the present invention includes a rider 1, a front foot 2, a rear foot 3, a first connecting member 4, a second connecting member 5, a third connecting member 6, a fourth connecting member 7, and a fifth connecting member 8. The upper sides of the first connecting member 4 and the second connecting member 5 are pivotally connected to different positions of the rider 1, and the lower sides are pivotally connected to different positions of the rear foot 3. Thus, the rider 1, the first connecting member 4, the second connecting member 5, and the rear foot 3 form a four-bar linkage structure. The front sides of the third connecting member 6 and the fifth connecting member 8 are pivotally connected to different positions of the front foot 2, and the rear side of the third connecting member 6 is pivotally connected to the second connecting member 5. The fourth connecting member 7 is cross-pivotally connected to the third connecting member 6, and the upper side of the fourth connecting member 7 is pivotally connected to the first connecting member 4, and the lower side is pivotally connected to the rear side of the fifth connecting member 8. Thus, the front foot 2, the third connecting member 6, the fourth connecting member 7, and the fifth connecting member 8 also form a four-bar linkage structure.

[0027] The upper side of the first connecting member 4 is pivotally connected to the rider 1 through a first pivot 41, and the lower side is pivotally connected to the rear foot 3 through a second pivot 42. The upper side of the second connecting member 5 is pivotally connected to the rider 1 through a third pivot 51, and the lower side is pivotally connected to the rear foot 3 through a fourth pivot 52. The first pivot 41 is located above the third pivot 51, and the second pivot 42 is located in front of the fourth pivot 52.

[0028] The rear side of the third connecting member 6 is pivotally connected to the second connecting member 5 through a fifth pivot 61, and the fifth pivot 61 is located between the third pivot 51 and the fourth pivot 52.

[0029] The front side of the third connecting member 6 is pivotally connected to the upper side of the front foot 2 through a sixth pivot 62, and the front side of the fifth connecting member 8 is pivotally connected to the front foot 2 through a seventh pivot 81. The sixth pivot 62 is located above the seventh pivot 81.

[0030] The upper side of the fourth connecting member 7 is pivotally connected to the first connecting member 4 through an eighth pivot 71, and the eighth pivot is located between the first pivot 41 and the second pivot 42.

[0031] The fourth connecting member 7 and the third connecting member 6 are cross-hinged by a ninth pivot 72, and the lower side of the fourth connecting member 7 is pivotally connected to the rear side of the fifth connecting member 8 by a tenth pivot 73. The ninth pivot 72 is located above the tenth pivot 73.

[0032] The frame is arranged such that the rear side of the front foot 2 is spaced from the front side of the rear foot 3. Preferably, the third connecting member 6 can be arranged for connecting a seat, that is, an additional seat is connected to the third connecting member 6; or, the third connecting member 6 can also be directly arranged as a seating support member of a seat. That is to say, if the third connecting member 6 is directly arranged as a seat board, after covering the seat cloth, the child directly sits on the seat board covered with the seat cloth. If the third connecting member 6 is arranged as a seat tube, after covering the seat cloth, the child sits on the seat cloth, and the seat tube serves as a support member for supporting the seat cloth.

[0033] The front lower side of the front foot 2 is connected with a front wheel 9, and the rear lower side of the rear foot 38 is connected with a rear wheel 10.

[0034] When folding the frame of the baby carriage of the present invention, rotate the rider 1 forward and downward and make the lower side of the rider 1 rotate backward and downward. Due to the characteristics of the four-bar linkage structure, the first connecting member 4 and the second connecting member 5 are also driven to rotate backward and downward. When the first connecting member 4 rotates backward and downward, it will drive the fourth connecting member 7 to move downward, thereby driving the third connecting member 6 to move downward. When the second connecting member 5 rotates backward and downward, it will also drive the rear side of the third connecting member 6 to rotate backward and downward. Thus, the front side of the third connecting member 6 will rotate upward relatively. In addition, when the fourth connecting member 7 rotates downward, it will drive the rear side of the fifth connecting member 8 to rotate downward, thereby pulling the front foot 2 to rotate backward (as shown in Figure 3 、 4 ). That is to say, as long as the rider 1 is rotated forward and downward and the lower side of the rider 1 is rotated backward and downward, all components of the frame are driven to rotate and approach until the frame is completely folded. That is to say, when folding, the components of the frame are driven smoothly, so the folding operation is easy and labor-saving; when the frame is completely folded, the components of one of the four-bar linkage structures, that is, the rider 1, the first connecting member 4, the second connecting member 5, and the rear foot 3, approach relatively, and the components of the other four-bar linkage structure, that is, the third connecting member 6, the fourth connecting member 7, the fifth connecting member 8, and the front foot 2, approach relatively. And because the second connecting member 5 and the third connecting member 6 in the two four-bar linkage structures are also pivotally connected to each other, after folding, the components of the two four-bar linkage structures also approach relatively as a whole (as shown in Figure 5 、 6 ). That is to say, in the folded state, all components of the baby carriage frame approach relatively. Thus, the volume of the folded baby carriage frame is small, which is convenient for carrying.

[0035] The present invention also discloses a baby carriage, which includes the above foldable frame.

Claims

1. A foldable baby carriage frame, characterized in that: It includes a rider, a front foot, a rear foot, a first connecting member, a second connecting member, a third connecting member, a fourth connecting member, and a fifth connecting member. The upper sides of the first connecting member and the second connecting member are pivotally connected to different positions of the rider, and the lower sides are pivotally connected to different positions of the rear foot, so that the rider, the first connecting member, the second connecting member, and the rear foot form a four-bar linkage structure; the front sides of the third connecting member and the fifth connecting member are pivotally connected to different positions of the front foot, and the rear side of the third connecting member is pivotally connected to the second connecting member; the fourth connecting member is cross-pivotally connected to the third connecting member, and the upper side of the fourth connecting member is pivotally connected to the first connecting member, and the lower side is pivotally connected to the rear side of the fifth connecting member, so that the front foot, the third connecting member, the fourth connecting member, and the fifth connecting member also form a four-bar linkage structure; The upper side of the first connecting member is pivotally connected to the rider through a first pivot, and the lower side is pivotally connected to the rear foot through a second pivot. The upper side of the second connecting member is pivotally connected to the rider through a third pivot, and the lower side is pivotally connected to the rear foot through a fourth pivot. The first pivot is located above the third pivot, and the second pivot is located in front of the fourth pivot; The rear side of the third connecting member is pivotally connected to the second connecting member through a fifth pivot, and the fifth pivot is located between the third pivot and the fourth pivot; The front side of the third connecting member is pivotally connected to the upper side of the front foot through a sixth pivot, and the front side of the fifth connecting member is pivotally connected to the front foot through a seventh pivot. The sixth pivot is located above the seventh pivot; The upper side of the fourth connecting member is pivotally connected to the first connecting member through an eighth pivot, and the eighth pivot is located between the first pivot and the second pivot; The fourth connecting member is cross-pivotally connected to the third connecting member through a ninth pivot, and the lower side of the fourth connecting member is pivotally connected to the rear side of the fifth connecting member through a tenth pivot. The ninth pivot is located above the tenth pivot.

2. The foldable baby stroller frame according to claim 1, wherein: The third connecting member is provided for connecting a seat; or, the third connecting member is provided as a seating support member of a seat.

3. The foldable baby stroller frame according to claim 1 or 2, characterized in that: The front lower side of the front foot is connected with a front wheel, and the rear lower side of the rear foot is connected with a rear wheel.

4. A stroller, characterized in that: It includes the foldable stroller frame according to any one of claims 1 to 3 above.

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