Folding baby stroller

Abstract

A foldable baby stroller includes a folding mechanism, a push rod, a front wheel frame, a rear caster frame, a seat plate, a guardrail and a back plate. The push rod is switched between a folded state of flipping downward or an unfolded state of flipping upward and restoring by means of the folding mechanism; the guardrail is switched between a folded state of being relatively close to the seat plate and an unfolded state of flipping up by means of the rotation of the seat shaft. Therefore, it has superior performance in terms of technology, practicality and economy.

Description

Technical Field

[0001] The invention relates to a foldable baby stroller. Background Art

[0002] According to market research and patent search, we found that the folding structure of existing baby strollers is a four-side folding structure with complex structural components and poor bearing capacity of the seat plate. We have comprehensively optimized the structure of various components of the baby stroller and developed a foldable baby stroller. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a foldable baby stroller, which has a safe and reliable assembly relationship, a stable folding structure, a small storage volume, a stable telescopic transmission of multiple linkages for storage and unfolding, a reversible direction for easy communication with the baby, and is safe and reliable. Therefore, it has superior performance in terms of technology, practicality and economy.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a foldable baby stroller, characterized in that it includes a folding mechanism, a push rod, a front wheel frame, a rear caster frame, a seat plate, a guardrail and a back plate, the push rod is converted between a folded state of flipping downward or an unfolded state of flipping upward and resetting with the help of the folding mechanism; the guardrail is converted between a folded state relatively close to the seat plate and an unfolded state of flipping up with the help of the rotation of the seat shaft.

[0005] In one or more embodiments of the present invention, the folding mechanism includes a first folding shaft, a second folding shaft, a third folding shaft, a fourth folding shaft, a fifth folding shaft, a sixth folding shaft, a seventh folding shaft and an eighth folding shaft; the first folding shaft, the second folding shaft and the sixth folding shaft are arranged on a rotating central component, and a bent connecting arm is movably connected between the third folding shaft and the fourth folding shaft; a first connecting rod is movably connected between the fourth folding shaft and the seventh folding shaft; the fifth folding shaft is movably arranged on the first connecting rod, and an inner folding arm is movably connected between the fifth folding shaft and the sixth folding shaft; and a second connecting rod is movably connected between the seventh folding shaft and the eighth folding shaft.

[0006] In one or more embodiments of the present invention, the central component is connected to a push rod, the seventh folding axis is arranged on the caster rod, and the eighth folding axis is movably connected to the seat plate; when the push rod is folded in a direction relatively close to the seat plate, the first folding axis, the second folding axis, the third folding axis, the fourth folding axis, the fifth folding axis, the sixth folding axis, the seventh folding axis and the eighth folding axis are linked to form a storage state.

[0007] In one or more embodiments of the present invention, when the hand push rod is folded in a direction relatively away from the seat plate, the first folding shaft, the second folding shaft, the third folding shaft, the fourth folding shaft, the fifth folding shaft, the sixth folding shaft, the seventh folding shaft and the eighth folding shaft are linked to form an unfolded state.

[0008] In one or more embodiments of the present invention, the first rotating central component is connected to the second rotating central component, and the second rotating central component is provided with a translation sliding shaft.

[0009] In one or more embodiments of the present invention, the backplane is a reversible backplane; the guardrail provides a reversing slot for the backplane.

[0010] In one or more embodiments of the present invention, the front wheel frame is integrally formed with the front foot support portion.

[0011] In one or more embodiments of the present invention, a rear foot support portion is assembled or formed on the rear caster frame.

[0012] Compared with the background technology, the present invention has the following effects:

[0013] Since the present invention adopts the above scheme, its assembly relationship is safe and reliable, the structure is stable when folded, the storage volume is small, the storage and unfolding multi-linkage and multiple connecting rods are combined and the telescopic transmission is stable, the reversible direction is convenient for communicating with the baby, and it is safe and reliable. Therefore, it has superior performance in terms of technology, practicality and economy. Therefore, it has superior performance in terms of technology, practicality and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a foldable baby stroller in a storage state according to an embodiment of the present invention;

[0015] Figure 2 It is a schematic structural diagram of a foldable baby stroller in another storage state according to an embodiment of the present invention;

[0016] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 4 It is a structural schematic diagram of a foldable baby stroller in one embodiment of the present invention;

[0018] Figure 5 It is a schematic structural diagram of a foldable baby stroller after reversing in one embodiment of the present invention;

[0019] Figure 6 for Figure 5 Schematic diagram of the structure of the mid-foldable baby stroller in the unfolded state after the back panel is reversed.

[0020] Those skilled in the art can understand the shapes, structures and schemes obtained from the figures shown in the drawings. The various components of the drawings are not necessarily to scale, and the sizes of the various components and elements of the drawings may be enlarged or reduced to more clearly illustrate the embodiments of the present invention described herein.

[0021] The following is a schematic diagram of the structure. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0023] The orientation shown in the drawings cannot be understood as limiting the specific protection scope of the present invention, but is only for reference and understanding of the preferred embodiments. The product components shown in the drawings may be changed in position, increased in number, or simplified in structure.

[0024] The "connection" described in the specification and the mutual "connection" relationship of the components shown in the drawings can be understood as a fixed connection or a detachable connection or an integral connection; it can be a direct connection or a connection through an intermediate medium. Ordinary technicians in this field can understand the connection relationship according to the specific circumstances and can derive different implementation methods in an appropriate manner such as screwing, riveting, welding, clamping or embedding.

[0025] The directional words such as up, down, left, right, top, bottom, etc. described in the specification and the directions shown in the drawings, the components may be in direct contact or through other features between them; for example, above can be directly above and obliquely above, or it only means higher than other objects; other directions can also be understood by analogy. The following describes specific embodiments with reference to the drawings. However, those skilled in the art will easily understand that the detailed description given herein with respect to these drawings is for illustrative purposes only and should not be understood as limiting.

[0026] See also Figures 1 to 6 What is shown in the figure is a preferred embodiment of the present invention, which is a foldable baby stroller, which includes a folding mechanism 10, a push rod 20, a front wheel frame 30, a rear caster frame 40, a seat plate 50, a guardrail 60 and a back plate 70. The push rod 20 is converted between a folded state of flipping downward or an unfolded state of flipping upward and restoring by means of the folding mechanism 100; the guardrail 60 is converted between a folded state relatively close to the seat plate 50 and an unfolded state of flipping up by means of the rotation of the seat shaft 80.

[0027] The folding mechanism 10 includes a first folding shaft 1, a second folding shaft 2, a third folding shaft 3, a fourth folding shaft 4, a fifth folding shaft 5, a sixth folding shaft 6, a seventh folding shaft 8 and an eighth folding shaft 8; the first folding shaft 1, the second folding shaft 2 and the sixth folding shaft 6 are arranged on a rotating central component 9, and a bending connecting arm 10 is movably connected between the third folding shaft 3 and the fourth folding shaft 4; a first connecting rod 11 is movably connected between the third folding shaft 3 and the seventh folding shaft 7; the fifth folding shaft 5 is movably arranged on the first connecting rod 11, and an inner folding arm 12 is movably connected between the fifth folding shaft 5 and the sixth folding shaft 6; a second connecting rod 13 is movably connected between the seventh folding shaft 7 and the eighth folding shaft.

[0028] The central component 19 is connected to the push rod 14, the seventh folding axis 7 is arranged on the caster rod 15, and the eighth folding axis 8 is movably connected to the seat plate 50; when the push rod 14 is folded in a direction relatively close to the seat plate 50, the first folding axis 1, the second folding axis 2, the third folding axis 3, the fourth folding axis 4, the fifth folding axis 5, the sixth folding axis 6, the seventh folding axis 7 and the eighth folding axis 8 are linked to form a storage state.

[0029] When the push rod 20 is folded in a direction relatively away from the seat plate 16, the first folding shaft 1, the second folding shaft 2, the third folding shaft 3, the fourth folding shaft 4, the fifth folding shaft 5, the sixth folding shaft 6, the seventh folding shaft 7 and the eighth folding shaft 8 are linked to form an unfolded state.

[0030] The rotating central component 1 9 is connected to the rotating central component 2 17, and the rotating central component 2 2 is provided with a translation sliding shaft 18. It also includes a rear caster rod 19, and the rear caster rod 19 is provided with a first shaft sleeve hole 21 connected to the second folding shaft 2 and a second shaft sleeve hole 21 connected to the sixth folding shaft 6. Sliding shaft.

[0031] The backboard 70 is a reversible backboard; the guardrail 60 provides a reversing slot 61 for the backboard. The backboard 70 is provided with a locking buckle 71 or a buckle, and the locking buckle 71 is assembled into the slot 61 and locked during assembly. The front wheel frame 30 is integrally formed with the front foot support portion 31. The rear foot support portion 41 is assembled or formed on the rear caster frame 40 to facilitate the baby to put his feet after turning.

[0032] When it is necessary to fold and store, the spring lock buckle 201 is pressed to open the seat plate buckle 51, so that the guardrail 60 is turned downward by the seat rotating shaft 80, and the hand push rod 20 is turned downward to fold in a direction close to the seat plate 50, and turned upward to reset to form an unfolded state. Its assembly relationship is safe and reliable, the structure is stable in folding, the storage volume is small, the storage and unfolding multi-linkage and multiple connecting rod combination telescopic transmission are stable, the reversible direction is convenient for communication with the baby, and it is safe and reliable. Therefore, it has superior performance in terms of technology, practicality and economy.

[0033] For the purpose of illustration, the foregoing description uses specific nomenclature to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that specific details are not required in order to practice the embodiments. Those skilled in the art should understand that the present invention is not limited to the specific embodiments described above, and improvements and substitutions based on the present invention using techniques known in the art fall within the scope of the present invention and should be defined by the claims.

Claims

1. A foldable baby stroller, characterized in that: It comprises a folding mechanism, a push rod, a front wheel frame, a rear caster frame, a seat plate, a guardrail and a back plate. The push rod is switched between a folding state of flipping downward or an unfolded state of flipping upward and restoring by means of the folding mechanism; the guardrail is switched between a folding state of being relatively close to the seat plate and an unfolded state of flipping up by means of the rotation of the seat shaft; The folding mechanism comprises a first folding rotating shaft, a second folding rotating shaft, a third folding rotating shaft, a fourth folding rotating shaft, a fifth folding rotating shaft, a sixth folding rotating shaft, a seventh folding rotating shaft and an eighth folding rotating shaft; the first folding rotating shaft, the second folding rotating shaft and the sixth folding rotating shaft are arranged on the rotating central component 1, the third folding rotating shaft is arranged on the hand push rod, the third folding rotating shaft and the fourth folding rotating shaft are movably connected to the bending connecting arm; the fourth folding rotating shaft and the seventh folding rotating shaft are movably connected to the first connecting rod; the fifth folding rotating shaft is movably arranged on the first connecting rod, the fifth folding rotating shaft and the sixth folding rotating shaft are movably connected to the inner folding arm; the seventh folding rotating shaft and the eighth folding rotating shaft are movably connected to the second connecting rod; The central component is connected to the push rod, the seventh folding shaft is arranged on the caster rod, and the eighth folding shaft is movably connected to the seat plate; when the push rod rotates in a direction relatively close to the seat plate, the first folding shaft, the second folding shaft, the third folding shaft, the fourth folding shaft, the fifth folding shaft, the sixth folding shaft, the seventh folding shaft and the eighth folding shaft are linked to form a storage state; When the push rod rotates in a direction relatively away from the seat plate, the first folding shaft, the second folding shaft, the third folding shaft, the fourth folding shaft, the fifth folding shaft, the sixth folding shaft, the seventh folding shaft and the eighth folding shaft are linked to form an unfolded state.

2. The foldable baby stroller according to claim 1, characterized in that: The first rotating central component is connected to the second rotating central component, and the second rotating central component is provided with a translation sliding shaft.

3. The foldable baby stroller according to claim 1, characterized in that: The backplane is a reversible backplane; the guardrail provides a reversing slot for the backplane.

4. The foldable baby stroller according to claim 1, characterized in that: The front wheel frame is integrally formed with a front foot support portion.

5. The foldable baby stroller according to claim 1, characterized in that: A rear foot support portion is assembled or formed on the rear caster frame.

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