CN112046593A - Baby carriage frame and baby carriage - Google Patents

Abstract

The invention belongs to the technical field of baby carriers, and discloses a baby carriage frame and a baby carriage. The baby carriage includes the above-mentioned baby carriage frame and a seat; the baby carriage frame includes a front wheel rod, a rear wheel rod and a push rod. The rod, the rear wheel rod and the push rod are coaxially pivoted to a rotating shaft. The push rod is provided with a sliding sleeve that can slide along the axial direction of the push rod. The sliding sleeve has a locking position close to the rotating shaft and an unlocking position away from the rotating shaft; the baby carriage frame It also includes a seat body, a first support rod, a second support rod and a third support rod that are pivotally connected in series, wherein: the end of the seat body away from the first support rod is pivotally connected to the push rod, and the pivot of the seat body and the push rod, The rotating shaft and the sliding sleeve are arranged in sequence 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 support rod is pivotally connected to the rear wheel rod, and One end of the third support rod away from the second support rod is pivotally connected to the sliding sleeve. The baby carriage frame provided by the invention can make the seat body folded together with the front wheel rod, the rear wheel rod and the push rod, and the folding process is simple and fast.

Description

A stroller frame and stroller

technical field

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

Background technique

The stroller frame generally includes a front wheel bar for installing the front wheel, a rear wheel bar for installing the rear wheel, and a push bar suitable for the caregiver to grasp and push, and one or more of the three are combined to fix the seat to Suitable for infants.

In order to facilitate storage and transportation, the above-mentioned front wheel rod, rear wheel rod and push rod are generally pivoted by connecting rods to form a foldable structure, so that the three are close to fit. The seat needs to be disassembled and placed independently before folding, so that the The folding and unfolding operations of the stroller frame are not easy enough.

Therefore, the above problems need to be solved urgently.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a baby carriage frame and a baby carriage to simplify the folding operation of the baby carriage frame.

For this purpose, the present invention adopts the following technical solutions:

A baby carriage frame includes 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, and the push rod is provided with a A sliding sleeve sliding along the axial direction of the push rod, the sliding sleeve has a locking position close to the rotating shaft and an unlocking position away from the rotating shaft; the baby carriage frame further comprises a series pivoted seat, a first support rods, secondary struts, and tertiary struts, where:

One end of the seat body away from the first strut is pivotally connected to the push rod, and the pivot axis of the seat body and the push rod, the rotating shaft and the sliding sleeve are along the axis of the push rod Set up in sequence;

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

The middle section of the third support rod is pivotally connected to the rear wheel rod, and the end of the third support rod away from the second support rod is pivotally connected to the sliding sleeve.

Preferably, one end of the third strut pivotally connected to the second strut is bent toward the rotating shaft.

Preferably, the pivot connection between the seat body and the push rod is located on the inner side of the baby carriage frame compared to the pivot connection between the seat body and the first strut.

Preferably, the seat body is configured to maintain a horizontal attitude when the sliding sleeve is in the locking position.

Preferably, the base body is pivotally connected to the push rod through a support extending outward from the bottom of the base body, and an escape portion for preventing the push rod from turning over is formed between the support base and the bottom surface of the base body.

Preferably, the baby carriage frame further includes a push handle, the push handle includes a connected handle and a pull rod, and the pull rod is slidably sleeved with the push rod.

Preferably, the baby carriage frame further includes a first locking device, the first locking device is configured to lock or unlock the sliding sleeve and the push rod, so that the sliding sleeve has the locking position and all the the unlocked position.

A baby carriage includes the above-mentioned baby carriage frame, and a seat detachably mounted on the baby carriage frame.

Preferably, the seat includes a second locking device, and a coaxially pivoted seat cushion, armrest and backrest, the second locking device being configured to allow the seat cushion, the armrest and the backrest to retract when unlocked folds and keeps the seat cushion, the armrest and the backrest in an unfolded state when locked.

Preferably, the seat further includes a ceiling, the ceiling includes a front ceiling bar and a rear ceiling bar, and the front ceiling bar and the rear ceiling bar are pivotally connected to the seat so as to be foldable to the Seat attachment.

Beneficial effects of the present invention:

When the baby carriage frame provided by the present invention is folded, the unlocked sliding sleeve is driven by the push rod pressed down and can pull the first support rod, the second support rod and the third support rod in linkage, so that the front wheel rod and the rear wheel can be pulled together. The rod folds close together with the putter. At the same time, the pivot structure between the first strut, the second strut and the third strut and the seat body, the front wheel bar, the rear wheel bar and the push rod enables the seat body to follow the folded front wheel bar , the rear wheel rod and the push rod are folded together, so that the folding process of the baby carriage frame is simple and fast.

When the baby carriage frame needs to be unfolded again, apply an external force to the push rod and pull the push rod, so that the baby carriage frame can be gradually unfolded. When the sliding sleeve slides to the locked position and locks, the unfolding is completed action.

With the above structure, the baby carriage frame can be folded and folded together with the seat installed on the baby carriage frame, that is, the seat does not need to be disassembled separately, so that the folding process of the baby carriage is simple and fast. .

Description of drawings

1 is a schematic structural diagram of a baby carriage in an unfolded state in an embodiment of the present invention;

2 is a schematic diagram of the disassembled structure of the baby carriage frame and the seat in the embodiment of the present invention;

3 is a schematic structural diagram of the seat, the ceiling and the push handle of the stroller in the half-folded state according to the embodiment of the present invention;

4A is one of the structural schematic diagrams of the semi-folded state of the stroller in the embodiment of the present invention;

4B is the second structural schematic diagram of the semi-folded state of the stroller in the embodiment of the present invention;

5A is one of the structural schematic diagrams of the folded state of the stroller in the embodiment of the present invention;

FIG. 5B is the second structural schematic diagram of the folded state of the stroller according to the embodiment of the present invention.

In the picture:

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

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "upper", "lower", "right", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which are only for convenience of description and simplified operation, rather than indicating Or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used for distinction in description, and have no special meaning.

Please refer to FIG. 1 and FIG. 2 , this embodiment provides a foldable stroller, which can be unfolded for infants to ride, or folded to reduce the space occupied by the stroller, which includes a stroller frame 100 , The baby carriage frame 100 includes a front wheel bar 1 , a rear wheel bar 2 , a push bar 3 , a seat 4 , a first strut 5 , a second strut 6 and a third strut 7 .

The front wheel bar 1 and the rear wheel bar 2 are located on the front side and the rear side of the stroller, respectively, and are used to install the front wheel and rear wheel 23 of the stroller, respectively, and the push rod 3 is directed to the rear side of the stroller. The extension is suitable for the caregiver to support the stroller frame 100 and push the stroller frame 100 forward. 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 be able to rotate around the rotating shaft 9 when the baby carriage 100 is folded or unfolded.

A sliding sleeve 8 is provided on the above-mentioned push rod 3. The sliding sleeve 8 can slide along the axial direction of the push rod 3. 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 away from the rotating shaft 9. The locked position can keep the front wheel rod 1, the rear wheel rod 2 and the push rod 3 in the unfolded state, and the unlocked 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. The above-mentioned The folding and unfolding actions are formed by the pivotable pivot connection formed between the seat body 4 , the first support rod 5 , the second support rod 6 and the third support rod 7 and the front wheel rod 1 , the rear wheel rod 2 and the push rod 3 Structure provided.

Please continue to refer to Figure 1 and Figure 2, the above-mentioned pivot structure is as follows:

The base 4 , the first strut 5 , the second strut 6 and the third strut 7 are pivotally connected in series through the first pin 10 , the second pin 11 and the third pin 12 .

The end of the seat body 4 away from the first strut 5 is pivotally connected with the push rod 3 through the fourth pin 13, and the fourth pin 13, the rotating shaft 9 and the sliding sleeve 8 are arranged in sequence along the axial direction of the push rod 3; the first The pivot of the strut 5 and the second strut 6, that is, the second pin 11 is arranged at the middle section of the front wheel rod 1; the middle section of the third strut 7 is pivotally connected to the rear wheel rod 2 through the fifth pin 14, and One end of the third support rod 7 away from the second support rod 6 is pivotally connected to the sliding sleeve 8 through a sixth pin 15 .

As shown in Figures 1 and 2, the sliding sleeve 8 is in the locked position, the seat body 4, the first support rod 5, the second support rod 6 and the third support rod 7, the front wheel rod 1, the rear wheel rod 2 and the push rod 3 are restrained and fixed with each other, so that the stroller frame 100 can be kept in the unfolded state, so as to ensure the safety of the stroller when it is parked and pushed forward.

Please refer to 4A and 4B together, when the stroller frame 100 needs to be folded, unlock the sliding sleeve 8 so that the sliding sleeve 8 is released from the locked position, and apply an external force to the push rod 3 toward the rear wheel rod 2 to make The sliding sleeve 8 slides from the locked position to the unlocked position, and the sliding sleeve 8 can pull the first support rod 5, the second support rod 6 and the third support rod 7 in linkage, so that the front wheel rod 1 and the rear wheel rod 2 are pressed down with The putter 3 is folded and moved closer together. Meanwhile, in the structure of the baby carriage 100, the seat body 4 itself constitutes a first link, the part of the push rod 3 between the fourth pin 13 and the rotating shaft 9 constitutes a second link pivotally connected to the first link, The part of the front wheel rod 1 between the rotating shaft 9 and the second pin 11 constitutes a third link pivotally connected to the second link, and the first strut 5 constitutes a pivotal connection between the first link and the third link. The fourth link between the two links, the four-link mechanism formed by the first link, the second link, the third link and the fourth link can make the seat body 4 follow the folded front wheel rod 1, rear The wheel bar 2 and the push rod 3 are folded together until the baby carriage frame 100 is completely folded to the folded state shown in FIGS. 5A and 5B .

When the baby carriage 100 needs to be unfolded again, an external force is applied to the push rod 3 to pull the push rod 3 away from the rear wheel bar 2, so that the baby carriage 100 can be gradually unfolded. When the sliding sleeve 8 slides to the locking position and locks After that, the unfolding action is completed.

With the above structure, the baby carriage frame 100 can be folded together with the seat 200 installed on it when the baby carriage frame 100 is folded, that is, it is not necessary to disassemble the seat 200 separately, so that the baby carriage can be folded. The folding process is simple and fast.

It can be understood that the baby carriage 100 includes a first locking device configured to lock or unlock the sliding sleeve 8 and the push rod 3 so that the sliding sleeve 8 has the above-mentioned locking and unlocking positions. Specifically, the first locking device disposed between the sliding sleeve 8 and the push rod 3 can adopt movable locking devices such as elastic locking pins, quick snaps, wedge-shaped locking sleeves commonly used in infant carriers, and the first locking device is not The improvement points of the present application are therefore not described and limited in detail here.

At the same time, it can be understood that the seat 200 of the stroller may be a foldable structure that is fixedly connected to the seat body 4. When the stroller frame 100 is folded, the seat 200 is turned over with the seat body 4. When the structure of the seat 200 is folded When it collides with other parts of the folded baby carriage frame 100 , the foldable seat 200 can be folded together with the baby carriage frame 100 , or the foldable seat 200 can be folded by the caregiver to be close to the folded baby carriage frame 100 alone. attached.

Specifically, please refer to FIG. 1 , FIG. 3 , FIG. 4A and FIG. 5A together, the seat 200 may include a coaxially pivoted seat cushion 16 , an armrest 17 and a backrest 18 , and the seat cushion 16 is connected to the seat body 4 and is formed as a In the shape suitable for infants and young children to ride, the armrests 17 are arranged on both sides of the seat cushion 16 or form an annular structure to be suitable for infants and young children to support, and the backrest 18 is formed in a form suitable for infants and young children to lean on. When the seat 200 is folded together with the baby carriage frame 100 , the armrest 17 and the backrest 18 are rotated and folded toward the seat cushion 16 to be attached to the seat cushion 16 to reduce the volume.

Optionally, seat 200 may include a second locking device configured to allow seat cushion 16, armrest 17 and backrest 18 to fold when unlocked and retain seat cushion 16, armrest 17 and backrest 18 when locked in the expanded state.

Optionally, the seat 200 may further include a ceiling 19 , and the ceiling 19 may include a front ceiling bar 191 and a rear ceiling bar 192 , and the front ceiling bar 191 and the rear ceiling bar 192 can be pivotally connected to the top of the backrest 18 of the seat 200 . , so that the ceiling 19 can also be folded and attached to the seat 200 .

Wherein, the second locking device may include an unlocking button disposed on the outside of the seat 200, and structures such as ratchet locks disposed on the pivots 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. The purpose of the backrest 18. Like the first locking device, the second locking device is not an improvement point of the present application, so it will not be described or limited in detail here. The pivot shafts of the front canopy rod 191 and the rear canopy rod 192 may adopt structures such as a damping shaft 193 to maintain their relative positions.

In order to facilitate the support of the caregiver, the stroller frame 100 further includes a push handle 20, and the push handle 20 includes a handle 201 suitable for hand support. The pull rod 202 can be slidably sleeved with the push rod 3, so as to be suitable for adjusting the height of the push handle 20. The push rod 3 and the push handle 20 can pass through a common telescopic sleeve structure, which will not be repeated here.

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

In this embodiment, the pivot point between the seat body 4 and the push rod 3 is located at the inner side of the baby carriage frame 100 compared with the pivot connection position between the seat body 4 and the first strut 5 , that is, during the folding process of the baby carriage frame 100 . , the seat body 4 can be folded to the outside of the stroller frame 100 together with the seat 200 installed on the seat body 4, which is suitable for the above-mentioned comfortable seat 200 which occupies a relatively large space by the seat cushion 16, the armrest 17 and the backrest 18. .

Further, the seat body 4 is pivotally connected to the push rod 3 through a support 41 extending outward from the bottom of the base body 4 , and an escape portion is formed between the support 41 and the bottom surface of the base body 4 to prevent the push rod 3 from turning over.

In other optional embodiments, the seat 200 of the stroller can also be made of flexible woven fabrics, etc., so that the seat 200 can occupy a small space after being folded, that is, the seat body 4 and the push rod 3 can occupy a small space. Compared with the pivot point between the seat body 4 and the first strut 5, the pivot point can be located on the outer side of the baby carriage frame 100, and the length of the first support rod 5 is appropriately extended, so that when the baby carriage frame 100 is folded, the seat The body 4 together with the flexible seat 200 installed on the seat body 4 can be folded to the inner side of the stroller frame 100 to further reduce the space occupied by the entire stroller after being folded.

Preferably, the seat body 4 is configured to maintain a horizontal attitude when the sliding sleeve 8 is in the locked position, and when the sliding sleeve 8 is in the locked position, the stroller frame is maintained in the unfolded state, that is, when the stroller frame is in the unfolded state. In the state, the seat body 4 can provide a substantially horizontal bearing surface for infants and young children. Specifically, the above purpose can be achieved by adjusting the rod-like positions of the first strut 5 and the seat body 4 and adjusting the length of the support 41 and other parameters.

In this embodiment, the end of the third support rod 7 pivoted to the second support rod 6 is bent toward the rotating shaft 9. Please refer to FIG. 4A and FIG. 5A. When the baby carriage frame 100 is folded, the third support rod 7 will be Rotate clockwise in FIG. 4A, and pull the second strut 6 to fold in the direction of the rotation axis 9, so that when the baby carriage 100 is folded, the second strut 6 together with the first strut 5 and the third strut The part of the rod 7 that is close to the second strut 6 is accommodated close to the interior of the stroller, so as to avoid being exposed to the outside and reduce potential safety hazards.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those of ordinary skill in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. There is no need and cannot be exhaustive of all implementations here. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

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).

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