CN112046593B

CN112046593B - Baby carriage frame and baby carriage

Info

Publication number: CN112046593B
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: 2025-07-25
Anticipated expiration: 2040-09-28
Also published as: CN112046593A

Abstract

The invention belongs to the technical field of infant carriers, and discloses an infant frame and an infant car, wherein the infant car comprises the infant frame and a seat, the infant frame comprises a front wheel rod, a rear wheel rod and a push rod, the front wheel rod, the rear wheel rod and the push rod are coaxially pivoted on a rotating shaft, a sliding sleeve capable of sliding along the axial direction of the push rod is arranged on the push rod, the sliding sleeve is provided with a locking position close to the rotating shaft and an unlocking position deviating from the rotating shaft, the infant frame further comprises a seat body, a first supporting rod, a second supporting rod and a third supporting rod which are pivoted in series, one end of the seat body deviating from the first supporting rod is pivoted with the push rod, a 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 pivot of the first supporting rod and the second supporting rod is arranged at the middle section of the front wheel rod, the middle section of the third supporting rod is pivoted on the rear wheel rod, and one end of the third supporting rod deviating from the second supporting rod is pivoted on the sliding sleeve. The baby carriage frame provided by the invention can enable the seat body to be folded together 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 infant carriers, in particular to a baby carriage frame and a baby carriage.

Background

Infant carriers generally include a front wheel bar for mounting the front wheels, a rear wheel bar for mounting the rear wheels, and a push bar adapted for grasping and pushing by a caregiver, one or more of which in combination secures the seat for seating by the infant.

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

Therefore, the above-described problems are 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.

To achieve the purpose, the invention adopts the following technical scheme:

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 to a rotating shaft, a sliding sleeve capable of axially sliding along the push rod is arranged on the push rod, the sliding sleeve is provided with a locking position close to the rotating shaft and an unlocking position deviating from the rotating shaft, and the baby carriage frame further comprises a seat body, a first supporting rod, a second supporting rod and a third supporting rod which are pivoted in series, wherein:

One end of the seat body, which is away from the first stay bar, 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 pivot shafts of the first stay bar and the second stay bar are arranged at the middle section of the front wheel bar;

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

Preferably, one end of the third supporting rod pivoted with the second supporting rod is bent towards the rotating shaft.

Preferably, the pivot joint of the seat body and the push rod is located at the inner side of the baby carriage frame compared with the pivot joint of the seat body and the first support rod.

Preferably, the seat is configured to remain in a horizontal position when the sliding sleeve is in the locked position.

Preferably, the seat body is pivoted with the push rod through a support seat with the bottom extending outwards, and an avoiding part for avoiding the push rod from overturning is formed between the support seat and the bottom surface of the seat body.

Preferably, the baby carriage frame further comprises a push handle, wherein the push handle comprises a handle and a pull rod which are connected, and the pull rod is in sliding sleeve joint 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 locked position and the unlocked position.

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

Preferably, the seat comprises a second locking means, and a seat cushion, armrest and backrest coaxially pivoted, the second locking means being configured to allow the seat cushion, armrest and backrest to collapse when unlocked and to retain the seat cushion, armrest and backrest in an extended condition when locked.

Preferably, the seat further comprises a roof comprising a front canopy bar and a rear canopy bar, the front canopy bar and the rear canopy bar being pivotally connected to the seat so as to be foldable into attachment with the seat.

The invention has the beneficial effects that:

When the baby carriage frame provided by the invention is folded, the unlocked sliding sleeve is driven by the push rod which is pressed down 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 pivot structure among the first stay bar, the second stay bar and the third stay bar, the seat body, the front wheel bar, the rear wheel bar and the push rod can enable the seat body to be folded together with the front wheel bar, the rear wheel bar and the push rod in folding, so that 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 back to the rear wheel rod is applied to the push rod to lift the push rod, so that the baby carriage frame can be unfolded gradually, and when the sliding sleeve slides to the locking position and is locked, the unfolding action is completed.

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, so that the folding process of the baby carriage is simple, convenient and quick.

Drawings

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

FIG. 2 is a schematic view showing a disassembled structure of a stroller frame and a seat according to an embodiment of the present invention;

FIG. 3 is a schematic view showing a half-folded state of a seat, a roof and a push handle of a stroller according to an embodiment of the present invention;

FIG. 4A is a schematic view of a stroller in a semi-folded state according to an embodiment of the present invention;

FIG. 4B is a second schematic view of a stroller in a semi-folded state according to an embodiment of the present invention;

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

FIG. 5B is a second schematic view of a stroller in a folded state according to an embodiment of the present invention.

In the figure:

100. The baby carriage comprises a baby carriage frame, 200 parts, a seat, 1 parts of front wheel rods, 2 parts of rear wheel rods, 3 parts of push rods, 4 parts of seat bodies, 41 parts of support seats, 5 parts of first support rods, 6 parts of second support rods, 7 parts of third support rods, 8 parts of sliding sleeves, 9 parts of rotating shafts, 10 parts of first pins, 11 parts of second pins, 12 parts of third pins, 13 parts of fourth pins, 14 parts of fifth pins, 15 parts of sixth pins, 16 parts of seat cushion, 17 parts of armrests, 18 parts of backrest, 19 parts of ceilings, 191 parts of front shed rods, 192 parts of rear shed rods, 193 parts of damping shafts, 20 parts of push handles, 201 parts of handles, 202 parts of pull rods, 21 parts of pedal, 22 parts of front wheels, 23 parts of rear wheels.

Detailed Description

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

In the description of the present invention, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

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

Wherein the front wheel bar 1 and the rear wheel bar 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 caretaker to support the baby carriage 100 and push the baby carriage 100 to advance. The front wheel bar 1, the rear wheel bar 2 and the push bar 3 are coaxially pivoted to a rotation shaft 9 so as to rotate around the rotation shaft 9 when the stroller frame 100 is folded or unfolded.

The push rod 3 is provided with a sliding sleeve 8, the sliding sleeve 8 can slide along the axial direction of the push rod 3, and along with the change of the sliding position, the sliding sleeve 8 has a locking position close to the rotating shaft 9 and an unlocking position deviating 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 relatively rotating and folding 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 turnable pivoting structure formed among the seat body 4, the first supporting rod 5, the second supporting rod 6 and the third supporting rod 7, the front wheel rod 1, the rear wheel rod 2 and the push rod 3.

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

The seat body 4, the first supporting rod 5, the second supporting rod 6 and the third supporting rod 7 are sequentially pivoted in series through a first pin 10, a second pin 11 and a third pin 12.

The seat body 4 is pivoted with the push rod 3 through a fourth pin 13 at one end, which is far away from the first support rod 5, 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 support rod 5 and the second support rod 6, namely the second pin 11, is arranged at the middle section of the front wheel rod 1, the middle section of the third support rod 7 is pivoted with the rear wheel rod 2 through a fifth pin 14, and one end, which is far away from the second support rod 6, of the third support rod 7 is pivoted with the sliding sleeve 8 through a sixth pin 15.

As shown in fig. 1 and 2, the sliding sleeve 8 is in a locking position, and the seat body 4, the first supporting rod 5, the second supporting rod 6, the third supporting rod 7, the front wheel rod 1, the rear wheel rod 2 and the push rod 3 are mutually held and fixed, so that the stroller frame 100 is kept in a unfolded state, and the safety of the stroller in the process of stopping and pushing is ensured.

Referring to fig. 4A and 4B together, when the stroller frame 100 needs to be folded, the sliding sleeve 8 is unlocked, the sliding sleeve 8 is separated from the locking position, an external force is applied to the push rod 3 towards the rear wheel rod 2, so that the sliding sleeve 8 slides from the locking position to the unlocking position, the sliding sleeve 8 can pull the first support rod 5, the second support rod 6 and the third support rod 7 in a linkage manner, and the front wheel rod 1 and the rear wheel rod 2 are folded together along with the push rod 3 pressed down. Meanwhile, in the structure of the stroller frame 100, the seat body 4 itself forms a first link, the portion of the push rod 3 located between the fourth pin 13 and the rotating shaft 9 forms a second link pivoted with the first link, the portion of the front wheel rod 1 located between the rotating shaft 9 and the second pin 11 forms a third link pivoted with the second link, the first support rod 5 forms a fourth link pivoted between the first link and the third link, and the four-link mechanism formed by the first link, the second link, the third link and the fourth link can fold the seat body 4 together with the front wheel rod 1, the rear wheel rod 2 and the push rod 3 in folding until the stroller frame 100 is completely folded to a folded state as shown in fig. 5A and 5B.

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

By virtue of the structure, the baby carriage 100 can be folded together with the seat 200 arranged on the baby carriage 100 when the baby carriage 100 is folded, that is, the seat 200 does not need to be independently disassembled, so that the folding process of the baby carriage is simple, convenient and quick.

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 locked and unlocked positions described above. Specifically, the first locking device disposed between the sliding sleeve 8 and the push rod 3 may be a movable locking device such as an elastic lock pin, a quick buckle, a wedge-shaped locking sleeve, etc. commonly used in infant carriers, which is not an improvement point of the present application, and therefore is not specifically described and limited herein.

It should be 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, and when the seat 200 is in contact with other parts of the stroller frame 100, the seat is folded along with the stroller frame 100, or the caregivers individually fold the foldable seat 200 to attach to the stroller frame 100 in a folded state.

Specifically, referring to fig. 1, 3, 4A and 5A together, the seat 200 may include a seat cushion 16, armrests 17 and a backrest 18 coaxially pivoted, wherein the seat cushion 16 is connected to the seat body 4 and is configured to be suitable for an infant to sit on, and the armrests 17 are disposed on two sides of the seat cushion 16 or form a ring structure to be suitable for the infant to support, and the backrest 18 is configured 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 folded toward the seat cushion 16 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, the armrest 17, and the back 18 to collapse when unlocked and to maintain the seat cushion 16, the armrest 17, and the back 18 in an expanded state when locked.

Optionally, the seat 200 may further include a ceiling 19, and the ceiling 19 may include 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 seat 200, so that the ceiling 19 may also be folded to be attached to the seat 200.

The second locking device may include an unlocking button provided on the outside of the seat 200, and a ratchet lock provided on the pivots of the seat cushion 16, the armrest 17, and the backrest 18, etc., to achieve the purpose of locking or unlocking the seat cushion 16, the armrest 17, and the backrest 18. As with the first locking device, the second locking device is not a modification of the present application, and is not described in detail herein. The pivot shafts of the front and rear canopy bars 191 and 192 may be maintained in their relative positions by means of a damping shaft 193 or the like.

For the convenience of supporting by caregivers, the stroller frame 100 further comprises a push handle 20, the push handle 20 comprises a handle 201 suitable for hand supporting, the handle 201 can be directly fixed on the push rod 3, or connected with the push rod 3 through a pull rod 202, and the pull rod 202 can be slidably sleeved with the push rod 3, so that the height position of the push handle 20 is suitable for being adjusted, and the push rod 3 and the push handle 20 can be in a common telescopic sleeve structure, which is not described herein.

In addition, the seat 200 may be configured for removable attachment to the seat body 4, such as by providing a symmetrical snap-fit arrangement therebetween that allows the seat 200 to be swapped back and forth so that an infant may sit on the stroller in a forward direction or in a face-up position. Suitably, the front wheel bar 1 and the rear wheel bar 2 may each be provided with a pedal 21 adapted to be stepped on by an infant.

In this embodiment, the pivot joint of 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 of the seat body 4 and the first support rod 5, that is, 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 during the folding process of the stroller frame 100, so that the seat 200 is suitable for the comfort seat 200 with relatively large occupied space such as the seat cushion 16, the armrest 17 and the backrest 18.

Further, the seat body 4 is pivoted with the push rod 3 through a support 41 with the bottom extending outwards, and an avoiding part for avoiding the push rod 3 from overturning is formed between the support 41 and the bottom surface of the seat body 4.

In other alternative embodiments, the seat 200 of the stroller may be made of flexible woven fabric, so that the space occupation of the folded seat 200 may be small, that is, the pivot of the seat body 4 and the push rod 3 may be located outside the stroller frame 100 as compared with the pivot of the seat body 4 and the first stay 5, and the length of the first stay 5 may be 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 space occupation of the whole stroller after folding.

Preferably, the seat 4 is configured to remain in a horizontal position when the sliding sleeve 8 is in the locked position, and the stroller frame is maintained in the unfolded state when the sliding sleeve 8 is in the locked position, i.e., the seat 4 provides a substantially horizontal bearing surface for the infant when the stroller frame is in the unfolded state. Specifically, the above object can be achieved by adjusting the rod-shaped 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 brace 7 pivoted to the second brace 6 is bent towards the rotation axis 9, referring to fig. 4A and 5A, when the stroller frame 100 is folded, the third brace 7 will rotate clockwise in fig. 4A and pull the second brace 6 to fold towards the rotation axis 9, so that the second brace 6, together with the first brace 5 and the portion of the third brace 7 close to the second brace 6, is accommodated close to the inside of the stroller when the stroller frame 100 is folded, thereby avoiding exposure and reducing the safety hazard.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. The 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), the sliding sleeve (8) is provided with a locking position close to the rotating shaft (9) and an unlocking position deviating from the rotating shaft (9), and the baby carriage frame further comprises a seat body (4), a first supporting rod (5), a second supporting rod (6) and a third supporting rod (7) which are pivoted in series, wherein:

One end of the seat body (4) deviating from the first supporting rod (5) is pivoted with the push rod (3), and the 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 pivot shafts of the first stay bar (5) and the second stay bar (6) are arranged at the middle section of the front wheel bar (1);

The middle section of the third supporting rod (7) is pivoted to the rear wheel rod (2), and one end of the third supporting rod (7) deviating from the second supporting rod (6) is pivoted to the sliding sleeve (8);

one end of the third supporting rod (7) pivoted with the second supporting rod (6) is bent towards the rotating shaft (9);

The pivot joint of the seat body (4) and the push rod (3) is positioned at the inner side of the baby carriage frame compared with the pivot joint of the seat body (4) and the first support rod (5);

The first brace rod (5), the second brace rod (6) and the third brace rod (7) are pivoted with the seat body (4), the front wheel rod (1), the rear wheel rod (2) and the push rod (3), so that the seat body (4) can be folded along with the front wheel rod (1), the rear wheel rod (2) and the push rod (3) in folding, and the folding process of the baby carriage frame is simple, convenient and quick.

2. The stroller frame according to claim 1, characterized in that the seat (4) is configured to remain in a horizontal position when the sliding sleeve (8) is in the locked position.

3. The baby carriage frame according to claim 1, wherein the base body (4) is pivoted with the push rod (3) through a support (41) with the bottom extending outwards, and an avoiding part for avoiding the overturn of the push rod (3) is formed between the support (41) and the bottom surface of the base body (4).

4. The stroller frame according to claim 1, further comprising a push handle (20), wherein the push handle (20) comprises a handle (201) and a pull rod (202) connected, and wherein the pull rod (202) is slidably sleeved with the push rod (3).

5. The stroller frame according to claim 1, further comprising 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.

6. A stroller characterized by comprising a stroller frame (100) according to any of the claims 1-5.

7. The stroller of claim 6, further comprising a seat (200) removably mounted to the seat body (4), the seat (200) comprising a second locking device and a seat cushion (16), an armrest (17) and a backrest (18) coaxially pivoted, the second locking device being configured to allow folding of the seat cushion (16), the armrest (17) and the backrest (18) when unlocked and to retain the seat cushion (16), the armrest (17) and the backrest (18) in an unfolded state when locked.

8. The stroller of claim 7, wherein the seat (200) further comprises a canopy (19), the canopy (19) comprising a front canopy bar (191) and a rear canopy bar (192), the front canopy bar (191) and the rear canopy bar (192) being pivotally connected to the seat (200) to be foldable into apposition with the seat (200).