CN112046593A

CN112046593A - Baby carriage frame and baby carriage

Info

Publication number: CN112046593A
Application number: CN202011043400.2A
Authority: CN
Inventors: 蔡守进
Original assignee: Luorui Sports Products Kunshan Co ltd
Current assignee: Luorui Sports Products Kunshan Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2020-12-08

Abstract

The invention belongs to the technical field of baby carriers, and discloses a baby carriage frame and a baby carriage, wherein the baby carriage comprises the baby carriage frame and a seat; the baby carriage frame comprises a front wheel rod, a rear wheel rod and a push rod, wherein the front wheel rod, the rear wheel rod and the push rod are coaxially pivoted on a rotating shaft; the perambulator frame still includes pedestal, first vaulting pole, second vaulting pole and the third vaulting pole of series connection pin joint, wherein: one end of the seat body, which is far away from the first support rod, is pivoted with the push rod, and the pivot, the rotating shaft and the sliding sleeve of the seat body and the push rod are sequentially arranged along the axial direction of the push rod; the pivots of the first support rod and the second support rod are arranged at the middle section of the front wheel rod; the middle section of the third stay bar is pivoted on the rear wheel bar, and one end of the third stay bar departing from the second stay bar is pivoted on the sliding sleeve. The baby carriage frame provided by the invention can fold the seat body along with the front wheel rod, the rear wheel rod and the push rod, and the folding process is simple, convenient and quick.

Description

Baby carriage frame and baby carriage

Technical Field

The invention relates to the technical field of baby carriers, in particular to a baby carriage frame and a baby carriage.

Background

The stroller frame generally includes a front wheel bar for mounting the front wheel, a rear wheel bar for mounting the rear wheel, and a push bar adapted to be grasped and pushed by a caregiver, one or more of which in combination secure a seat adapted for seating of an infant.

In order to facilitate storage and transportation, the front wheel rod, the rear wheel rod and the push rod are generally pivoted through the connecting rods to form a foldable structure, so that the front wheel rod, the rear wheel rod and the push rod are close to be attached, the seat needs to be detached and independently placed in advance before being folded, and the folding and unfolding operations of the baby carriage frame are not simple and convenient.

Therefore, the above problems need to be solved.

Disclosure of Invention

The invention aims to provide a baby carriage frame and a baby carriage, so as to simplify the folding operation of the baby carriage frame.

In order to achieve the purpose, the invention adopts the following technical scheme:

a baby carriage frame comprises a front wheel rod, a rear wheel rod and a push rod, wherein the front wheel rod, the rear wheel rod and the push rod are coaxially pivoted on a rotating shaft, the push rod is provided with a sliding sleeve capable of axially sliding along the push rod, and the sliding sleeve is provided with a locking position close to the rotating shaft and an unlocking position departing from the rotating shaft; the baby carriage frame further comprises a seat body, a first support rod, a second support rod and a third support rod which are connected in series and pivoted, wherein:

one end of the seat body, which is far away from the first support rod, is pivoted with the push rod, and the pivot of the seat body and the push rod, the rotating shaft and the sliding sleeve are sequentially arranged along the axial direction of the push rod;

the pivots of the first support rod and the second support rod are arranged at the middle section of the front wheel rod;

the middle section of the third stay bar is pivoted to the rear wheel bar, and one end of the third stay bar, which deviates from the second stay bar, is pivoted to the sliding sleeve.

Preferably, one end of the third stay pivoted to the second stay is bent toward the rotating shaft.

Preferably, the pivot joint of the seat body and the push rod is located on the inner side of the stroller frame compared with the pivot joint of the seat body and the first stay bar.

Preferably, the base is configured to be maintained in a horizontal posture when the sliding sleeve is in the locking position.

Preferably, the base body is pivoted with the push rod through a support extending outwards from the bottom of the base body, and an avoiding portion avoiding the overturn of the push rod is formed between the support and the bottom surface of the base body.

Preferably, the baby carriage frame further comprises a push handle, the push handle comprises a handle and a pull rod which are connected, and the pull rod is in sliding sleeve connection with the push rod.

Preferably, the stroller frame further comprises a first locking device configured to lock or unlock the sliding sleeve and the push rod, so that the sliding sleeve has the locking position and the unlocking position.

A stroller comprises a stroller frame as described above, and a seat removably mounted to the stroller frame.

Preferably, the seat comprises a second locking device, and a coaxially pivoted seat cushion, arm rests and backrest, the second locking device being configured to allow the seat cushion, arm rests and backrest to collapse when unlocked and to maintain the seat cushion, arm rests and backrest in an expanded state when locked.

Preferably, the seat further comprises a ceiling, the ceiling comprises a front canopy rod and a rear canopy rod, and the front canopy rod and the rear canopy rod are pivoted to the seat so as to be foldable to be attached to the seat.

The invention has the beneficial effects that:

when the baby carriage frame is folded, the unlocked sliding sleeve is driven by the push rod which is pressed downwards to pull the first support rod, the second support rod and the third support rod in a linkage manner, so that the front wheel rod and the rear wheel rod are folded together along with the push rod. Meanwhile, the first stay bar, the second stay bar and the third stay bar are pivoted with the seat body, the front wheel bar, the rear wheel bar and the push rod, so that the seat body can be folded along with the front wheel bar, the rear wheel bar and the push rod, and the folding process of the baby carriage frame is simple, convenient and quick.

When the baby carriage frame needs to be unfolded again, external force which is back to the rear wheel rod is applied to the push rod to pull the push rod, so that the baby carriage frame can be gradually unfolded, and when the sliding sleeve slides to the locking position and is locked, the unfolding action is finished.

By means of the structure, the baby carriage frame can be folded together with the seat arranged on the baby carriage frame when the baby carriage frame is folded, namely the seat does not need to be detached independently, and the folding process of the baby carriage is simple, convenient and quick.

Drawings

FIG. 1 is a schematic structural view of a stroller in an unfolded state according to an embodiment of the present invention;

FIG. 2 is a schematic view of the stroller frame and seat shown disassembled in accordance with an embodiment of the present invention;

FIG. 3 is a schematic structural view of the stroller in an embodiment of the present invention in a semi-collapsed state with the seat, the ceiling and the push handle;

fig. 4A is a schematic structural view of the stroller in the semi-collapsed state according to the embodiment of the present invention;

fig. 4B is a second schematic structural view of the stroller in the semi-collapsed state according to the embodiment of the present invention;

fig. 5A is a schematic structural view of the stroller in the folded state according to the embodiment of the present invention;

fig. 5B is a second schematic structural view of the stroller in the folded state according to the embodiment of the invention.

In the figure:

100. a stroller frame; 200. a seat; 1. a front wheel lever; 2. a rear wheel lever; 3. a push rod; 4. a base body; 41. a support; 5. a first stay bar; 6. a second stay bar; 7. a third stay bar; 8. a sliding sleeve; 9. a rotating shaft; 10. a first pin; 11. a second pin; 12. a third pin; 13. a fourth pin; 14. a fifth pin; 15. a sixth pin; 16. a cushion; 17. a handrail; 18. a backrest; 19. a ceiling; 191. a front canopy rod; 192. a rear canopy rod; 193. a damping shaft; 20. a push handle; 201. a handle; 202. a pull rod; 21. a pedal 22, a front wheel; 23. a rear wheel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Referring to fig. 1 and 2, the present embodiment provides a foldable stroller, which can be unfolded for a baby to sit on or folded to reduce the occupied space, and the stroller includes a stroller frame 100, wherein the stroller frame 100 includes a front wheel bar 1, a rear wheel bar 2, a push bar 3, a seat body 4, a first support bar 5, a second support bar 6 and a third support bar 7.

Wherein, the front wheel rod 1 and the rear wheel rod 2 are respectively positioned at the front side and the rear side of the baby carriage and are respectively used for installing the front wheel and the rear wheel 23 of the baby carriage, and the push rod 3 extends towards the rear side of the baby carriage so as to be suitable for a caregiver to support the baby carriage 100 and push the baby carriage 100 to advance. The front wheel rod 1, the rear wheel rod 2 and the push rod 3 are coaxially pivoted to a rotating shaft 9 so as to rotate around the rotating shaft 9 when the stroller frame 100 is folded or unfolded.

A sliding sleeve 8 is arranged on the push rod 3, the sliding sleeve 8 can slide along the axial direction of the push rod 3, along with the change of the sliding position, the sliding sleeve 8 is provided with a locking position close to the rotating shaft 9 and an unlocking position departing from the rotating shaft 9, wherein the locking position can keep the front wheel rod 1, the rear wheel rod 2 and the push rod 3 in an unfolding state, the unlocking position is suitable for the relative rotation and folding of the front wheel rod 1, the rear wheel rod 2 and the push rod 3, and the folding and unfolding actions are provided by a rotatable pin joint structure formed among the seat body 4, the first support rod 5, the second support rod 6, the third support rod 7, the front wheel rod 1, the rear wheel rod 2 and the push rod 3.

With continued reference to fig. 1 and fig. 2, the pivot structure is as follows:

the seat body 4, the first stay bar 5, the second stay bar 6 and the third stay bar 7 are sequentially and serially pivoted through a first pin 10, a second pin 11 and a third pin 12.

One end of the seat body 4, which is far away from the first support rod 5, is pivoted with the push rod 3 through a fourth pin 13, and the fourth pin 13, the rotating shaft 9 and the sliding sleeve 8 are sequentially arranged along the axial direction of the push rod 3; the pivot of the first stay bar 5 and the second stay bar 6, namely the second pin 11, is arranged at the middle section of the front wheel bar 1; the middle section of the third stay bar 7 is pivoted to the rear wheel bar 2 through a fifth pin 14, and one end of the third stay bar 7 departing from the second stay bar 6 is pivoted to the sliding sleeve 8 through a sixth pin 15.

As shown in fig. 1 and 2, when the sliding sleeve 8 is in the locking position, the seat body 4, the first brace 5, the second brace 6, the third brace 7, the front wheel bar 1, the rear wheel bar 2 and the push bar 3 are restrained and fixed with each other, so that the stroller frame 100 is kept in the unfolded state, and the safety of the stroller during parking and pushing forward is ensured.

Referring to fig. 4A and 4B, when the stroller frame 100 needs to be folded, the sliding sleeve 8 is unlocked to separate the sliding sleeve 8 from the locking position, an external force toward the rear wheel bar 2 is applied to the push rod 3 to slide the sliding sleeve 8 from the locking position to the unlocking position, and the sliding sleeve 8 can pull the first support bar 5, the second support bar 6 and the third support bar 7 in a linkage manner to fold and draw the front wheel bar 1 and the rear wheel bar 2 together with the push rod 3 pressed downward. Meanwhile, in the structure of the stroller frame 100, the seat body 4 itself forms a first connecting rod, a portion of the push rod 3 located between the fourth pin 13 and the rotating shaft 9 forms a second connecting rod pivoted with the first connecting rod, a portion of the front wheel lever 1 located between the rotating shaft 9 and the second pin 11 forms a third connecting rod pivoted with the second connecting rod, and the first stay rod 5 forms a fourth connecting rod pivoted between the first connecting rod and the third connecting rod, so that the seat body 4 can be folded together with the front wheel lever 1, the rear wheel lever 2 and the push rod 3 which are folded, until the stroller frame 100 is completely folded to the folded state shown in fig. 5A and 5B.

When the baby carriage frame 100 needs to be unfolded again, an external force which is back to the rear wheel rod 2 is applied to the push rod 3 to pull the push rod 3, so that the baby carriage frame 100 can be gradually unfolded, and when the sliding sleeve 8 slides to the locking position and is locked, the unfolding action is finished.

By means of the above structure, the stroller frame 100 can be folded together with the seat 200 mounted thereon while the stroller frame 100 is folded, i.e. the seat 200 does not need to be detached separately, so that the folding process of the stroller is simple and rapid.

It will be appreciated that the stroller frame 100 includes a first locking device configured to lock or unlock the sliding sleeve 8 and the push rod 3 such that the sliding sleeve 8 has the above-described locked and unlocked positions. Specifically, the first locking device disposed between the sliding sleeve 8 and the push rod 3 may be an elastic locking pin, a quick buckle, a wedge-shaped locking sleeve, or other movable locking devices commonly used in infant carriers, and the first locking device is not an improvement point of the present application, and therefore, detailed description and limitation are not repeated herein.

It is understood that the seat 200 of the stroller may be a foldable structure fixedly connected to the seat body 4, when the stroller frame 100 is folded, the seat 200 is turned over along with the seat body 4, when the seat 200 structure is abutted against other parts of the stroller frame 100, the seat 200 structure is folded along with the stroller frame 100, or a caregiver separately folds the foldable seat 200 to be attached to the stroller frame 100 in the folded state.

Specifically, referring to fig. 1, 3, 4A and 5A, the seat 200 may include a seat cushion 16, an armrest 17 and a backrest 18, which are coaxially pivoted, wherein the seat cushion 16 is connected to the seat body 4 and is formed to be suitable for an infant to sit on, the armrest 17 is disposed on two sides of the seat cushion 16 or forms a ring structure to be suitable for the infant to support, and the backrest 18 is formed to be suitable for the infant to lean on. When the seat 200 is folded together with the stroller frame 100, the armrests 17 and the backrest 18 are rotated toward the seat cushion 16 and folded to be attached to the seat cushion 16, so as to reduce the volume.

Alternatively, the seat 200 may include a second locking device configured to allow the seat cushion 16, arm rests 17, and backrest 18 to collapse when unlocked and to maintain the seat cushion 16, arm rests 17, and backrest 18 in the expanded state when locked.

Optionally, the chair 200 may further comprise a canopy 19, the canopy 19 may comprise a front canopy rod 191 and a rear canopy rod 192, and the front canopy rod 191 and the rear canopy rod 192 may be pivotally connected to the top end of the backrest 18 of the chair 200, so that the canopy 19 may also be folded to be attached to the chair 200.

The second locking device may include an unlocking button disposed outside the seat 200, and a ratchet lock disposed on the pivot shafts of the seat cushion 16, the armrest 17, and the backrest 18, so as to lock or unlock the seat cushion 16, the armrest 17, and the backrest 18. Like the first locking device, the second locking device is not an improvement point of the present application, and therefore, detailed description and limitation are not provided herein. The pivots of front canopy bar 191 and rear canopy bar 192 may be configured to maintain their relative positions using a damper shaft 193 or the like.

For the convenience of being held by a caregiver, the stroller frame 100 further includes a push handle 20, the push handle 20 includes a handle 201 suitable for being held by a hand, the handle 201 can be directly fixed to the push rod 3, or connected to the push rod 3 through a pull rod 202, the pull rod 202 can be slidably sleeved with the push rod 3, so as to be suitable for adjusting the height position of the push handle 20, and the push rod 3 and the push handle 20 can be connected through a common telescopic tube structure, which will not be described herein.

In addition, the seat 200 may be detachably connected to the seat body 4, for example, a symmetrical fastening structure may be provided therebetween to allow the seat 200 to be changed in front-rear direction, so that the infant can be seated in the stroller in a forward direction or in a direction facing the caregiver. Suitably, pedals 21 suitable for infants to step on can be arranged on the front wheel bar 1 and the rear wheel bar 2.

In this embodiment, the pivot joint between the seat body 4 and the push rod 3 is located at the inner side of the stroller frame 100 compared with the pivot joint between the seat body 4 and the first support rod 5, that is, during the folding process of the stroller frame 100, the seat body 4 and the seat 200 mounted on the seat body 4 can be folded towards the outer side of the stroller frame 100, which is suitable for the comfortable seat 200 occupying a relatively large space by the cushion 16, the armrest 17 and the backrest 18.

Further, the seat body 4 is pivotally connected with the push rod 3 through a support 41 extending outwards from the bottom of the seat body, and an avoiding portion avoiding the push rod 3 from turning is formed between the support 41 and the bottom surface of the seat body 4.

In other optional embodiments, the seat 200 of the stroller may also be made of a flexible woven fabric, so that the occupied space of the folded seat 200 may be small, that is, the pivot joint between the seat body 4 and the push rod 3 may be located outside the stroller frame 100 compared to the pivot joint between the seat body 4 and the first support rod 5, and the length of the first support rod 5 is properly extended, so that when the stroller frame 100 is folded, the seat body 4 and the flexible seat 200 mounted on the seat body 4 may be folded towards the inside of the stroller frame 100, thereby further reducing the occupied space of the folded stroller.

Preferably, the seat body 4 is configured to be maintained in a horizontal posture when the sliding sleeve 8 is in the locking position, and the stroller frame is maintained in the unfolded state when the sliding sleeve 8 is in the locking position, that is, the seat body 4 can provide a substantially horizontal bearing surface for the infant when the stroller frame is in the unfolded state. Specifically, the above-mentioned object can be achieved by adjusting the rod-like positions of the first stay 5 and the seat body 4, and adjusting the length of the support 41.

In this embodiment, one end of the third stay 7 pivotally connected to the second stay 6 is bent toward the rotation shaft 9, please refer to fig. 4A and 5A, when the stroller frame 100 is folded, the third stay 7 rotates clockwise in fig. 4A, and pulls the second stay 6 to fold toward the rotation shaft 9, so that the second stay 6, the first stay 5, the portion of the third stay 7 close to the second stay 6 are accommodated close to the inside of the stroller when the stroller frame 100 is folded, thereby avoiding exposure and reducing the potential safety hazard.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A baby carriage frame comprises a front wheel rod (1), a rear wheel rod (2) and a push rod (3), and is characterized in that the front wheel rod (1), the rear wheel rod (2) and the push rod (3) are coaxially pivoted to a rotating shaft (9), a sliding sleeve (8) capable of axially sliding along the push rod (3) is arranged on the push rod (3), and the sliding sleeve (8) is provided with a locking position close to the rotating shaft (9) and an unlocking position departing from the rotating shaft (9); the baby carriage frame further comprises a seat body (4), a first support rod (5), a second support rod (6) and a third support rod (7) which are connected in series and pivoted, wherein:

one end of the seat body (4) departing from the first support rod (5) is pivoted with the push rod (3), and a pivot of the seat body (4) and the push rod (3), the rotating shaft and the sliding sleeve (8) are sequentially arranged along the axial direction of the push rod (3);

the pivots of the first support rod (5) and the second support rod (6) are arranged at the middle section of the front wheel rod (1);

the middle section of the third stay bar (7) is pivoted to the rear wheel bar (2), and one end of the third stay bar (7) departing from the second stay bar (6) is pivoted to the sliding sleeve (8).

2. A stroller frame according to claim 1, characterized in that the end of the third stay (7) pivoted to the second stay (6) is bent towards the pivot axis (9).

3. A stroller frame according to claim 1, wherein the pivot of the seat (4) and the push rod (3) is located inside the stroller frame compared to the pivot of the seat (4) and the first stay (5).

4. A stroller frame according to claim 1, characterized in that the seat (4) is configured to be held in a horizontal position when the sliding sleeve (8) is in the locking position.

5. The stroller frame according to claim 1, wherein the seat body (4) is pivotally connected to the push rod (3) by a support (41) extending outward from a bottom thereof, and an avoiding portion for avoiding the push rod (3) from turning is formed between the support (41) and a bottom surface of the seat body (4).

6. A stroller frame according to claim 1, characterized in that the stroller frame further comprises a push handle (20), the push handle (20) comprises a handle (201) and a pull rod (202) connected, and the pull rod (202) is slidably sleeved with the push rod (3).

7. A stroller frame according to claim 1, characterized in that the stroller frame further comprises a first locking device configured to lock or unlock the sliding sleeve (8) with the push rod (3) such that the sliding sleeve (8) has the locked position and the unlocked position.

8. A stroller, characterized by comprising a stroller frame (100) according to any one of claims 1 to 7.

9. The stroller of claim 8, further comprising a seat (200) detachably mounted to the seat body (4), the seat (200) comprising a coaxially pivoted seat cushion (16), arm rests (17) and backrest (18) and a second locking device configured to allow the seat cushion (16), arm rests (17) and backrest (18) to be folded when unlocked and to maintain the seat cushion (16), arm rests (17) and backrest (18) in a deployed state when locked.

10. The stroller of claim 9, wherein the seat (200) further comprises a canopy (19), the canopy (19) comprising a front canopy rod (191) and a rear canopy rod (192), the front canopy rod (191) and the rear canopy rod (192) being pivotally connected to the seat (200) so as to be collapsible into attachment with the seat (200).