Folding stroller

Abstract

The present invention discloses a folding stroller, comprising a push rod, a front support, a rear support, and an upper support rod, the lower part of which is rotatably connected to the lower part of the push rod; a side support rod, the upper part of which is rotatably connected to the upper support rod and slidably connected to the rear support; and a seat rod, which is rotatably connected to the front support. During the transition of the folding stroller from an open state to a folded state, the rear part of the seat rod is directly or indirectly driven by the lower part of the side support rod. When folding, the upper part of the side support rod slides along the upper support rod while the side support rod rotates, and the lower part of the side support rod drives the seat rod to rotate. After the whole stroller is folded, it is small in size, easy to carry, simple in structure, ingenious in design, and easy to operate.

Description

Technical Field

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

[0002] Folding strollers are widely used as a means of transportation for infants. Consumers require folding strollers that are easy to fold and small in size after folding, so that they are easy to store and carry. Folding strollers in the prior art generally have a complex structure, are large in size after folding, are relatively heavy, inconvenient to carry, and take up a lot of space when stored. Summary of the invention

[0003] In order to solve the above problems, an object of the present invention is to provide a foldable baby stroller.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a foldable baby stroller, which has an open state and a folded state, and includes a push rod, a front bracket with a front wheel connected to the bottom for rotation, and a rear bracket with a rear wheel connected to the bottom, any two of the upper part of the front bracket, the upper part of the rear bracket and the lower part of the push rod are rotationally connected, and the remaining one is rotationally connected to at least one of the two, and the foldable baby stroller also includes

[0005] An upper enclosure rod, the lower portion of which is rotatably connected to the lower portion of the push rod;

[0006] A side support rod, the upper portion of which is connected to the upper enclosure rod in a manner that it can rotate and slide relative to the upper enclosure rod, and the side support rod is rotatably connected to the rear bracket;

[0007] The seat rod is rotatably connected to the front bracket. When the folding stroller is in transition from an open state to a folded state, the rear portion of the seat rod is directly or indirectly driven by the lower portion of the side support rod.

[0008] Furthermore, a sliding sleeve is slidably connected to the upper enclosure rod, and the upper portion of the side support rod is rotatably connected to the sliding sleeve.

[0009] Optionally, the foldable stroller further comprises a basket rod rotatably connected to the rear support, the front portion of the basket rod is rotatably connected to the rear portion of the seat rod, and the lower portion of the side support rod is connected to the basket rod so as to be both rotatable and slidable relative to the basket rod. Specifically, a slide groove is provided on the basket rod, and the lower portion of the side support rod has a pin that can slide along the slide groove and rotate in the slide groove.

[0010] Optionally, the lower portion of the side support rod is rotatably connected to the rear portion of the seat rod.

[0011] Furthermore, the foldable stroller also includes an armrest whose rear portion is rotatably connected to the front bracket, and a connecting rod whose upper portion is rotatably connected to the armrest and whose lower portion is rotatably connected to the seat rod.

[0012] Furthermore, the upper portion of the front bracket has a joint extending forward, and the armrest is connected to the joint.

[0013] Furthermore, the foldable baby stroller also includes an upper push rod whose lower portion is rotatably connected to the upper portion of the push rod.

[0014] Furthermore, the push rod, the upper enclosure rod, the front bracket and the rear bracket are rotatably connected on the same rotation axis.

[0015] Furthermore, when the foldable stroller is in the open state, the push rod is located above the rear support. The foldable stroller also has a reverse working state. When the foldable stroller is in the reverse working state, the push rod rotates to the top of the front support.

[0016] Due to the adoption of the above technical solution, when the foldable child stroller is folded, the side support rods rotate while their upper parts slide along the upper surrounding rods, and the lower parts of the side support rods drive the seat rods to rotate. After the whole stroller is folded, it is small in size, easy to carry, simple in structure, ingenious in design, and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a schematic diagram of the side structure of a foldable baby stroller in an open state according to an embodiment of the present invention;

[0018] Attached Figure 2 For attachment Figure 1 Schematic diagram of the three-dimensional structure;

[0019] Attached Figure 3 For attachment Figure 1 The side structural diagram of the foldable baby stroller shown is in a reverse state;

[0020] Attached Figure 4 For attachment Figure 3 Schematic diagram of the three-dimensional structure;

[0021] Attached Figure 5 For attachment Figure 1 A schematic diagram of the side structure of the foldable baby stroller during the folding process;

[0022] Attached Figure 6 For attachment Figure 5 Schematic diagram of the three-dimensional structure;

[0023] Attached Figure 7 For attachment Figure 1 The side structural diagram of the foldable baby stroller shown in the folded state;

[0024] Attached Figure 8 For attachment Figure 7 Schematic diagram of the three-dimensional structure;

[0025] Attached Fig. 9FIG. 1 is a schematic diagram of the side structure of a foldable baby stroller in an open state according to another embodiment of the present invention.

[0026] The numbers in the figure are:

[0027] 1. Upper push rod; 2. Push rod; 3. Side support rod; 4. Upper enclosure rod; 5. Sliding sleeve; 6. Front bracket; 7. Rear bracket; 8. Seat rod; 9. Basket rod; 10. Connecting rod; 11. Handrail; 12. Slide; 13. Joint; 14. Front wheel; 15. Rear wheel; 16. Connecting piece. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0029] Embodiment 1

[0030] From the attached Figure 1 To Attachment Figure 8 As can be seen from the structural schematic diagram, the foldable baby stroller in this embodiment has an open state and a folded state. The foldable baby stroller includes a push rod 2, a front bracket 6, a rear bracket 7, an upper surrounding rod 4, a side support rod 3, and a seat rod 8, wherein any two of the upper part of the front bracket 6, the upper part of the rear bracket 7 and the lower part of the push rod 2 are rotatably connected, and the remaining one is rotatably connected to at least one of the two, preferably: a front wheel 14 is connected to the bottom of the front bracket 6, and the upper part of the front bracket 6 is rotatably connected to the lower part of the push rod 2; a rear wheel 15 is connected to the bottom of the rear bracket 7, and the upper part of the rear bracket 7 is rotatably connected to the front bracket 6 or the push rod 2.

[0031] The lower part of the upper surrounding rod 4 is rotatably connected to the lower part of the push rod 2. In this embodiment, the push rod 2, the upper surrounding rod 4, the front bracket 6, and the rear bracket 7 are rotatably connected on the same rotation axis. Figure 1 Preferably, the upper enclosure rod 4 is located inside the push rod 2, and a plane extending in the up-down direction and the front-back direction is provided, and the projections of the upper enclosure rod 4 and the push rod 2 on the plane substantially coincide.

[0032] The upper part of the side support rod 3 is connected to the upper enclosure rod 4 so as to be rotatable and slidable relative to each other. In the specific structure of this embodiment, a sliding sleeve 5 is slidably connected to the upper enclosure rod 4, and the upper part of the side support rod 3 is rotatably connected to the sliding sleeve 5 via a rotating shaft b, and the sliding sleeve 5 is located above the rotating shaft a. The side support rod 3 is rotatably connected to the rear bracket 7 via a rotating shaft c, and specifically, the rotating shaft c is located between the rotating shaft a and the rear wheel 15.

[0033] The seat post 8 is rotatably connected to the front support 6 via a rotating shaft d, specifically, the rotating shaft d is located between the rotating shaft a and the front wheel 14. During the transition of the folding stroller from the open state to the folded state, the rear portion of the seat post 8 is directly or indirectly driven by the lower portion of the side support rod 3.

[0034] In this embodiment, during the transition from the open state to the folded state of the foldable stroller, the rear portion of the seat rod 8 is indirectly driven by the lower portion of the side support rod 3. Specifically, the foldable stroller further includes a basket rod 9, which is rotatably connected to the rear support 7 via a rotating shaft e, the rotating shaft e being located between the rotating shaft c and the rear wheel 15, the front portion of the basket rod 9 is rotatably connected to the rear portion of the seat rod 8 via a rotating shaft f, the rotating shaft f being located behind the rotating shaft d and in front of the rotating shaft e, the lower portion of the side support rod 3 is connected to the basket rod 9 in a manner that allows both relative rotation and relative sliding, and the specific structure adopted in this embodiment is that a slide groove 12 is provided on the basket rod 9, the lower portion of the side support rod 3 has a pin that can slide along the slide groove 12 and can rotate in the slide groove 12, the pin being arranged at the attachment Figure 1 At g shown, g is located below the rotation axis c.

[0035] The foldable stroller in this embodiment also includes an armrest 11. In a more preferred embodiment, the rear portion of the armrest 11 is rotatably connected to the front bracket 6 via a rotating shaft h, and the armrest 11 is rotatably connected to the connecting rod 10 via a rotating shaft i. The lower portion of the connecting rod 10 is rotatably connected to the seat rod 8 via a rotating shaft j, so that the armrest 11 can be driven to fold in conjunction when the stroller is folded, and the volume of the entire stroller is smaller after folding. Specifically, the rotating shaft i is located behind the rotating shaft h, and the rotating shaft j is located between the rotating shaft d and the rotating shaft f. The specific connection structure between the armrest 11 and the front bracket 6 in this embodiment is that the upper portion of the front bracket 6 has a joint 13 extending forward, and the armrest 11 is rotatably connected to the joint 13. In the present embodiment, the specific connection structure between the armrest 11 and the connecting rod 10 is that a connecting piece 16 extending backward is fixedly connected to the rear of the armrest 11, and the upper end of the connecting rod 10 is connected to the connecting piece 16. When the foldable child stroller is in the open state, the connecting piece 16 is located on the inner side of the armrest 11 and the joint 13, and the inner side here refers to the side facing the inside of the stroller.

[0036] In this embodiment, the foldable baby stroller further comprises an upper push rod 1, the lower portion of which is rotatably connected to the upper portion of the push rod 2 via a rotating shaft k.

[0037] In a more preferred embodiment, the foldable stroller is a reversible stroller, and the push rod 2 is rotatably located above the front bracket 6 or above the rear bracket 7. When the stroller is in the above-mentioned open state, the push rod 2 is located above the rear bracket 7, and the stroller can be pushed forward at this time, that is, when pushing, the person pushing the stroller faces the same direction as the child sitting in the stroller. The stroller also has a reverse working state. In the reverse working state, the push rod 2 is located above the front bracket 6, and the stroller can be pushed in the reverse direction at this time, that is, when pushing, the person pushing the stroller faces the opposite direction to the child sitting in the stroller, specifically face to face, so that the status of the child in the stroller can be conveniently checked; when. .

[0038] The upper push rod 1, upper surrounding rod 4, handrail 11, basket rod 9 are all U-shaped, and the push rod 2, side support rod 3, front bracket 6, rear bracket 7, seat rod 8, connecting rod 10 are respectively provided with two and are symmetrically arranged on the left and right sides of the cart.

[0039] Working principle:

[0040] When the foldable baby stroller needs to be folded in the opened state, the upper push rod 1 is rotated forward and downward to make it close to the push rod 2, and then the push rod 2 and the upper surrounding rod 4 are rotated backward and downward; the upper surrounding rod 4, the side support rod 3, the sliding sleeve 5 and the rear bracket 7 constitute a crank slider mechanism, and during the process of the upper surrounding rod 4 rotating close to the rear bracket 7, the upper part of the side support rod 3 is driven to rotate backward, and the sliding sleeve 5 moves upward along the side support rod 3; the side support rod 3, the rear bracket 7, the basket rod 9 and the slide groove 12 constitute another crank slider mechanism, and the side support rod 3 When the lower part of the side support rod 3 rotates forward, the basket rod 9 is pried to rotate, and the pin connected to the lower part of the side support rod 3 slides forward along the slide slot 12; the front bracket 6, the rear bracket 7, the seat rod 8 and the basket rod 9 constitute a four-bar linkage mechanism, and the front part of the basket rod 9 drives the rear part of the seat rod 8 to rotate upward, so that the front bracket 6 and the rear bracket 7 rotate and move closer to each other; the front bracket 6, the seat rod 8, the connecting rod 10, and the handrail 11 constitute another four-bar linkage mechanism, and the seat rod 8 rotates to rotate the handrail 11 and the connecting rod 10 and move closer to the front bracket 6. Until all parts are folded, the whole vehicle is folded.

[0041] When the foldable baby stroller needs to be folded in the reverse state, the push rod 2 is first rotated backwards, the foldable baby stroller is first switched to the check-in state, and then folded according to the above steps.

[0042] Embodiment 2

[0043] Reference Fig. 9 The folding child stroller in this embodiment has a substantially identical frame structure to that in the first embodiment, and the folding child stroller in this embodiment differs from the first embodiment only in that, in this embodiment, during the transition of the folding child stroller from the open state to the folded state, the rear portion of the seat rod 8 is directly driven by the lower portion of the side support rod 3.

[0044] Specifically, compared with the first embodiment, the present embodiment does not have a basket rod 9, and the lower portion of the side support rod 3 is directly rotatably connected to the rear portion of the seat rod 8 via a rotating shaft 1, and the rotating shaft 1 is located between the rotating shaft d and the rotating shaft c.

[0045] Working principle:

[0046] When the foldable stroller needs to be folded in the open state, the upper push rod 1 is rotated forward and downward to make it close to the push rod 2, and then the push rod 2 and the upper surrounding rod 4 are rotated backward and downward; the upper surrounding rod 4, the side support rod 3, the sliding sleeve 5 and the rear bracket 7 constitute a crank slider mechanism, and in the process of the upper surrounding rod 4 rotating and approaching the rear bracket 7, the upper part of the side support rod 3 is driven to rotate backward, and the sliding sleeve 5 moves upward along the side support rod 3; the front bracket 6, the rear bracket 7, the seat rod 8 and the side support rod 3 constitute a four-bar linkage mechanism, and the lower part of the side support rod 3 drives the rear part of the seat rod 8 to rotate upward, so that the front bracket 6 and the rear bracket 7 rotate and approach each other; the front bracket 6, the seat rod 8, the connecting rod 10, and the handrail 11 constitute another four-bar linkage mechanism, and the seat rod 8 rotates to make the handrail 11 and the connecting rod 10 rotate and approach the front bracket 6. Until all parts are folded, the whole vehicle is folded.

[0047] When the foldable baby stroller needs to be folded in the reverse state, the push rod 2 is first rotated backwards, the foldable baby stroller is first switched to the check-in state, and then folded according to the above steps.

[0048] The foldable stroller in the above embodiment, when folding, the side support rods rotate while their upper parts slide along the upper surrounding rods, and the lower parts of the side support rods directly or indirectly drive the seat rods to rotate. After the whole stroller is folded, it is small in size, easy to carry, simple in structure, ingenious in design, and easy to operate.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A foldable baby stroller having an open state and a folded state, the foldable baby stroller comprising a push rod (2), a front bracket (6) having a front wheel (14) connected to the bottom, and a rear bracket (7) having a rear wheel (15) connected to the bottom, wherein any two of the upper part of the front bracket (6), the upper part of the rear bracket (7) and the lower part of the push rod (2) are rotatably connected, and the remaining one is rotatably connected to at least one of the two, characterized in that: The foldable baby stroller also includes An upper enclosure rod (4), the lower portion of which is rotatably connected to the lower portion of the push rod (2); A side support rod (3), the upper portion of which is connected to the upper enclosure rod (4) in a manner that allows both relative rotation and relative sliding, and the side support rod (3) is rotatably connected to the rear bracket (7); a seat rod (8) rotatably connected to the front bracket (6), The foldable stroller further comprises a connecting rod (10) and an armrest (11); the rear portion of the armrest (11) is rotatably connected to the front bracket (6); the rear portion of the armrest (11) is fixedly connected to a connecting piece (16) extending backward; the upper portion of the connecting rod (10) is connected to the connecting piece (16); the lower portion of the connecting rod (10) is rotatably connected to the seat rod (8); a four-bar linkage is formed between the front bracket (6), the seat rod (8), the connecting rod (10) and the armrest (11); during the transition of the foldable stroller from an open state to a folded state, the rear portion of the seat rod (8) is directly or indirectly driven by the lower portion of the side support rod (3), so that the rear portion of the seat rod (8) is turned upward and folded relative to the front bracket (6); the seat rod (8) rotates to cause the armrest (11) and the connecting rod (10) to rotate and move closer to the front bracket (6).

2. The foldable baby stroller according to claim 1, characterized in that: A sliding sleeve (5) is slidably connected to the upper enclosure rod (4), and the upper portion of the side support rod (3) is rotatably connected to the sliding sleeve (5).

3. The foldable baby stroller according to claim 1, characterized in that: The foldable baby stroller further comprises a basket rod (9) rotatably connected to the rear support (7), the front portion of the basket rod (9) being rotatably connected to the rear portion of the seat rod (8), and the lower portion of the side support rod (3) being connected to the basket rod (9) in a manner that allows both relative rotation and relative sliding.

4. The foldable baby stroller according to claim 3, characterized in that: The basket rod (9) is provided with a slide groove (12), and the lower part of the side support rod (3) has a pin shaft that can slide along the slide groove (12) and can rotate in the slide groove (12).

5. The foldable baby stroller according to claim 1, characterized in that: The lower portion of the side support rod (3) is rotatably connected to the rear portion of the seat rod (8).

6. The foldable baby stroller according to claim 1, characterized in that: The upper portion of the front bracket (6) has a joint (13) extending forward, and the armrest (11) is connected to the joint (13).

7. The foldable baby stroller according to claim 1, characterized in that: The foldable baby stroller further comprises an upper push rod (1) whose lower portion is rotatably connected to the upper portion of the push rod (2).

8. The foldable baby stroller according to claim 1, characterized in that: The push rod (2), the upper surrounding rod (4), the front bracket (6), and the rear bracket (7) are rotatably connected on the same rotation axis.

9. The foldable baby stroller according to claim 1, characterized in that: When the foldable child stroller is in an open state, the push rod (2) is located above the rear bracket (7); the foldable child stroller also has a reverse working state, and when the foldable child stroller is in the reverse working state, the push rod (2) rotates to above the front bracket (6).

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