CN211592678U - Seat bidirectional folding structure and infant carrier thereof - Google Patents

Abstract

The utility model provides a seat bidirectional folding structure which is suitable for infant carrier, comprising a front foot joint, a back foot joint and a seat supporting joint, wherein the front foot joint and the back foot joint are rotatablely connected along a rotation axis, the seat supporting joint can rotate relative to the front foot joint and the back foot joint, and the seat supporting joint extends convexly towards two sides to form a first supporting arm and a second supporting arm respectively; a first supporting part is arranged on one side of the front foot joint facing the front foot rest, and a second supporting part is arranged on one side of the rear foot joint facing the rear foot rest; when the infant carrier is in a folding state, the seat supporting joint can rotate forwards relative to the front foot joint and the rear foot joint to realize forward folding or rotate backwards to realize backward folding; when the infant carrier is in an open state, the first support arm abuts against the first support part, and the second support arm abuts against the second support part so as to position the seat support joint. The utility model also provides an infant carrier with the bidirectional seat folding structure.

Description

Two-way foldable seat structure and its infant carrier

technical field

The invention relates to an infant product, in particular to an infant carrier and a bidirectional foldable structure of its seat.

Background technique

At present, in infant carriers on the market, such as baby strollers, the carrying portion and the frame are usually detachable, and the carrying portion can be installed on the frame in both front and rear directions. When the carrying part is installed forward, the infant in the carrying part can see the scenery in front; when the carrying part is installed backward, the infant in the carrying part can see the caregiver of the stroller, and the caregiver can also easily view the baby Case.

Most of the current infant carriers have a foldable function, but for a bidirectionally installed bearing portion, it can usually only be folded when it is installed in a forward direction, and cannot be folded in both directions.

In this regard, it is necessary to improve the current retractable structure of the infant carrier, so as to realize the bidirectional folding of the seat of the infant carrier, and at the same time, the folded infant carrier can stand, and the volume after retraction is small. Easy to carry and store.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a bidirectional folding structure of the seat, so as to realize the bidirectional folding of the infant carrier.

Another object of the present invention is to provide an infant carrier whose seat can be folded in both directions, and at the same time, the folded infant carrier can stand, and has a small size after being folded, which is easy to carry and store.

In order to achieve the above purpose, the present invention provides a bidirectionally foldable seat structure suitable for an infant carrier. The infant carrier includes a front foot joint disposed on the upper end of the front foot frame, a rear foot joint disposed on the upper end of the rear foot frame, and A seat support joint for supporting the bearing portion, the front foot joint and the rear foot joint are rotatably connected along a rotation axis, the seat support joint is rotatable relative to the front foot joint and the rear foot joint, the seat support joint The first support arm and the second support arm are respectively formed by protruding to both sides; the side of the front foot joint facing the front foot frame is provided with a first supporting part along the direction parallel to the rotation axis, and the rear foot joint is facing the direction of the rotation axis. One side of the rear foot frame is provided with a second support portion along the direction parallel to the rotation axis; when the front foot joint and the rear foot joint are rotated until the infant carrier is in a folded state, the first A support part is close to the second support part, and the seat support joint can rotate forward relative to the front foot joint and the rear foot joint to realize forward folding, or rotate backward to achieve backward folding; when When the front foot joint and the rear foot joint are rotated until the infant carrier is in an open state, the first support part and the second support part are far away, and the first support arm abuts against the first support arm. A support portion and the second support arm abut against the second support portion to position the seat support joint.

Compared with the prior art, the seat provided by the present invention has a bidirectional foldable structure, the seat support joint can be rotated relative to the front foot joint and the rear foot joint, and a first support part is arranged on the side of the front foot joint close to the front foot frame, and the rear foot joint is provided with a first support part. A second support portion is provided on the side of the joint close to the rear leg, and the seat support joint protrudes toward both sides to form a first support arm and a second support arm, so that when the infant carrier is in the folded state, the first support portion It is close to the second support part, the seat support joint can rotate relative to the front foot joint and the rear foot joint, and when the seat support joint rotates forward relative to the front foot joint and the rear foot joint, it can be folded forward; when the seat support joint is relative to the front foot joint and the rear foot joint Backward folding is achieved when turning backwards. According to the bidirectional foldable structure of the seat provided by the present invention, there is no restriction on the position of the carrying portion when the infant carrier is folded, and the carrying portion can be conveniently folded regardless of whether the carrying portion is in the forward or rearward direction.

Preferably, the front foot joint is provided with a first chute, the rear foot joint is provided with a second chute, and the first chute and the second chute are in a plane perpendicular to the rotation axis. overlapping area; a connecting pin is fixedly connected to the side of the seat support joint facing the front foot joint and the rear foot joint, and the connecting pin is inserted into the first chute and the second chute to realize the The seat support joint is rotatably connected with the front foot joint and the rear foot joint. In this preferred embodiment, the overlapping area of the first chute and the second chute changes with the rotation of the front foot joint and the rear foot joint, and the overlapping area of the first chute and the second chute changes with the rotation of the front foot joint and the rear foot joint. The connecting pin locks or releases the relative rotation of the front foot joint and the rear foot joint while realizing the connection between the seat support joint and the front foot joint and the rear foot joint.

In one embodiment, both the first chute and the second chute are arc-shaped with the rotation axis as the center; when the front foot joint and the rear foot joint rotate to When the tool is in the open state, the overlapping area of the first chute and the second chute is reduced, and the connecting pin is limited by the first chute and the second chute; when the front foot When the joint and the rear foot joint are rotated until the infant carrier is in the folded state, the overlapping area of the first chute and the second chute is enlarged, and the connecting pin can be located in the overlapping area Sliding; in this embodiment, when the infant carrier is in the folded state, the position of the seat support joint can be changed with the sliding of the connecting pin in the first chute and the second chute , for easy folding.

Further, the cross section of the connecting pin is non-circular, and the width of a partial area of the cross section of the connecting pin is greater than the width of the first chute or the second chute; according to this structure, the connecting pin It cannot be rotated relative to the first chute and the second chute, and can only be rotated when the front foot joint and the rear foot joint are rotated until the infant carrier is in the folded state. When the overlapping area of the chute increases, it can slide in the overlapping area, so that the seat support joint can be rotated back and forth to realize folding, and when the front foot joint and the rear foot joint are rotated until the infant carrier is in the open state, the first chute The overlapping area with the second sliding groove is reduced, the connecting pin is limited by the first sliding groove and the second sliding groove, and the connecting pin can play an auxiliary limiting role for the seat support joint.

In another embodiment, the first chute and the second chute are linear; the diameter of the cross section of the connecting pin is smaller than the width of the first chute and the second chute; The connecting pin can rotate in the first chute and the second chute, so that even when the infant carrier is in an open state, the seat support joint will not be limited.

Preferably, the first support portion and the second support portion are respectively sleeved with shaft sleeves at the positions where they are clamped with the first support arm and the second support arm.

In order to achieve the above purpose, the present invention also provides a carrier for infants and young children, comprising a front foot frame, a rear foot frame and a bearing portion, the upper end of the front foot frame is provided with a front foot joint, and the upper end of the rear foot frame is provided with a rear foot joint, so the The front foot joint and the rear foot joint are rotatably connected along a rotation axis; the bearing part is installed forwardly or backwardly through the seat support joint; the infant carrier also includes a seat bidirectional as described in any of the above A collapsible structure is provided, and the bidirectional collapsible structure of the seat is symmetrically arranged on the left and right sides of the infant carrier.

Compared with the prior art, the infant carrier provided by the present invention has the aforementioned bidirectional folding structure of the seat, which can realize the front and rear bidirectional folding of the carrying portion, which is convenient for users to use.

Preferably, the infant carrier further includes an armrest frame, the lower end of the armrest frame is provided with an upper joint, the front foot joint, the rear foot joint and the upper joint are rotatably connected along a rotation axis, the One of the front foot joint, the rear foot joint and the upper joint is provided with a bayonet, and the other two of the front foot joint, the back foot joint and the upper joint are respectively provided with bayonet slots; When the joint, the rear foot joint and the upper joint are rotated until the infant carrier is in an open state, the bayonet pin moves into the latch slot, so that the infant carrier remains in the open state.

Specifically, the bearing portion includes a seat portion and a backrest portion, the backrest portion and the seat portion are rotatably connected, and the seat portion is along a rotational axis of the backrest portion and the seat portion as At least two backrest angle adjustment card slots are arranged in the circular arc direction of the center, and the backrest portion is provided with an adjustment card pin that moves toward the direction of the rotation axis of the backrest portion and the seat portion; the adjustment The bayonet can be selectively snapped into any of the backrest angle adjustment slots to adjust the inclination angle of the backrest portion, or withdrawn from the backrest angle adjustment slot so that the backrest portion can rotate relative to the seat portion The carrying portion is folded.

Further, the adjustment bayonet always has an action tendency to be stuck into the backrest angle adjustment slot; the bearing portion further includes a backrest adjusting handle, and the backrest adjusting handle is arranged on the backrest portion away from the backrest. one side of the seat part, and the backrest adjustment handle is connected to the adjustment bayonet via a rigid traction rope; the backrest adjustment handle is operated to drive the adjustment bayonet to exit the backrest angle adjustment bayonet, so that The backrest portion and the seat portion can be rotated relative to each other to be folded.

Description of drawings

FIG. 1 is a schematic structural diagram of an infant carrier of the present invention.

FIG. 2 is a schematic diagram of the split structure of the frame and the carrying portion of the infant carrier of the present invention.

FIG. 3 is an exploded view of the bidirectional foldable structure of the seat of the present invention.

Fig. 4a is a schematic diagram of the open state of the forefoot joint and the hindfoot joint.

Fig. 4b is a schematic diagram of the folded state of the forefoot joint and the hindfoot joint.

5 is a schematic diagram of the state of the seat support joint when the seat bidirectionally foldable structure of the present invention is folded forward.

6 is a schematic diagram of the state of the seat support joint when the seat bidirectionally foldable structure of the present invention is folded backward.

Fig. 7a is a schematic diagram of the open state of the forefoot joint and the hindfoot joint in another embodiment.

Fig. 7b is a schematic diagram of a state in which the front foot joint and the rear foot joint are in a folded state, and the seat support joint is folded forward in another embodiment.

7c is a schematic diagram of a state in which the front foot joint and the rear foot joint are in a folded state, and the seat support joint is folded backward in another embodiment.

FIG. 8 is a schematic structural diagram of the bearing portion.

FIG. 9 is an enlarged view of part A in FIG. 8 .

10-12 are schematic diagrams of the folding process when the seat portion of the infant carrier according to the present invention is installed forward.

13-15 are schematic diagrams of the folding process when the seat portion of the infant carrier of the present invention is installed backward.

Detailed ways

In order to describe the technical content, structural features, achieved objects and effects of the present invention in detail, the following detailed description is given in conjunction with the embodiments and the accompanying drawings.

As shown in FIG. 1 , the present invention provides an infant carrier, which includes a front foot frame 100 , a rear foot frame 200 and a bearing portion 300 . The upper end of the front foot frame 100 is provided with a front foot joint 110 , and the upper end of the rear foot frame 200 is provided with a rear foot The joint 210 , the front foot joint 110 and the rear foot joint 210 are rotatably connected along a rotation axis; the bearing part 300 can be installed forward or backward through the seat support joint 310 . The infant carrier also includes a two-way foldable seat structure, and the seat two-way foldable structure is symmetrically arranged on the left and right sides of the infant carrier, so that no matter whether the bearing portion 300 is installed in the forward direction or in the rear direction, the infant and young child will not be affected. The carriers can be easily folded. The two-way foldable structure of the infant carrier and the seat provided by the present invention will be described in more detail below with reference to FIGS. 2-15 .

The infant carrier provided by the present invention can be a children's high chair, an infant stroller, or the like. The infant carrier shown in FIG. 1 is, by way of example, an infant stroller. Specifically, as shown in FIG. 1 , the infant carrier includes a frame and a carrying portion 300 for carrying the infant. The frame includes a front leg frame 100 , a rear leg frame 200 and an armrest frame 400 . The upper ends of the front leg frame 100 and the rear leg frame 200 are respectively provided with a front leg joint 110 and a rear leg joint 210 , and the lower end of the armrest frame 400 is provided with an upper joint 410 . The upper ends of the front leg frame 100 and the rear leg frame 200 are rotatably connected via the front leg joint 110 and the rear leg joint 210, and the lower ends of the front leg frame 100 and the rear leg frame 200 are away from each other, so that the front leg frame 100 and the rear leg frame 200 are arranged in a herringbone shape; the lower end of the armrest frame 400 It is rotatably connected to the front foot joint 110 and the rear foot joint 210 via the upper joint 410 .

Further, as shown in FIGS. 1-3 , the front foot joint 110 , the rear foot joint 210 and the upper joint 410 are rotatably connected along a rotation axis, and one of the front foot joint 110 , the rear foot joint 210 and the upper joint 410 is provided with a card The pin 411, the other two of the front foot joint 110, the rear foot joint 210 and the upper joint 410 are respectively provided with card slots 111 and 211; the front foot joint 110, the rear foot joint 210 and the upper joint 410 are rotated until the infant carrier is in an open state When the latching pin 411 moves into the latching slots 111 and 211 to keep the infant carrier in an open state; when the latching pin 411 exits the latching slots 111 and 211 , the front foot joint 110 , the rear foot joint 210 and the upper joint 410 are free Rotate close to make the infant carrier in the folded state. Specifically in this embodiment, the bayonet 411 is disposed at the upper joint 410 , and the front foot joint 110 and the rear foot joint 210 are respectively provided with bayonet slots 111 and 211 ; in other embodiments different from this embodiment, the bayonet 411 may also be It is arranged on the front foot joint 110 or the rear foot joint 210, as long as the front foot joint 110, the rear foot joint 210 and the upper joint 410 can be limited to be in an open state, or the front foot joint 110, the rear foot joint 210 and the upper joint 410 can be unlocked so as to facilitate the vehicle The rack can be folded. Furthermore, in this embodiment, the bayonet 411 can move along the radial direction of the rotation axis to enter or exit the bayonet slots 111 and 211 , and in other embodiments different from this embodiment, the bayonet 411 can also be parallel to Move into or out of the card slots 111 and 211 in the direction of the rotation circumferential direction.

Preferably, in order to fold the infant carrier in an orderly manner, a one-way limiting structure can also be provided between the front foot joint 110 and the upper joint 410, so that only one-way rotation is possible between the front foot frame 100 and the armrest frame 400. At this time, the armrest frame 400 can only be rotated in a direction away from the rear leg frame 200 and toward the front leg frame 100 , or the armrest frame 400 can only be rotated in a direction close to the rear leg frame 200 . Specifically, in this embodiment, as shown in FIGS. 10 to 15 , when the detent 411 exits the slots 111 and 211 and releases the front foot joint 110 , the rear foot joint 210 and the upper joint 410 , the armrest frame 400 can only move forward. Rotate, and rotate in a direction away from the rear stand 200 and toward the front stand 100 to realize the folding of the infant carrier. Preferably, as shown in FIGS. 10-15 , based on the relative lengths of the armrest frame 400 and the rear leg frame 200 , after the infant carrier is folded, the armrest frame 400 and the rear leg frame 200 are approximately in the same plane and can be supported together. The folded infant carrier is in an upright state, which is convenient for storing the infant carrier. It can be understood that on the basis of the above disclosure of the present invention, a one-way limit structure is provided between the forefoot joint 110 and the upper joint 410, which is common knowledge to those skilled in the art, and will not be repeated here. described.

1 and 2 , in the frame of the infant carrier, the front legs 100 , the rear legs 200 and the armrests 400 are all symmetrical in structure. The seat support joints 310 are connected; the left and right sides of the bearing part 300 are respectively provided with clamping parts 320, and the clamping parts 320 and the seat support joints 310 are correspondingly clamped to realize the detachable connection between the bearing part 300 and the frame. Further, the clamping portion 320 and the seat support joint 310 can be clamped forward or backward, so as to realize the forward installation or rearward installation of the bearing portion 300 relative to the frame.

In order to realize that the carrying portion 300 can be folded together with the frame when the infant carrier is used in the front and rear directions, the present invention also provides a bidirectional foldable structure of the seat. The bidirectionally foldable structure of the seat provided by the present invention is suitable for infant carriers such as children's high chairs and infant strollers. As shown in FIGS. 1 to 5 , it can be understood that the infant carrier includes a front foot joint 110 arranged on the upper end of the front foot frame 100 , a rear foot joint 210 arranged on the upper end of the rear foot frame 200 , and a seat support joint 310 for supporting the bearing portion , the front foot joint 110 and the rear foot joint 210 are rotatably connected along a rotation axis, the seat support joint 310 can rotate relative to the front foot joint 110 and the rear foot joint 210, and the seat support joint 310 protrudes to both sides to form a first support part 311 and a second support part 310 respectively. The support arm 312; the side of the front foot joint 110 facing the front foot frame 100 is provided with a first support portion 113 along the direction parallel to the rotation axis, and the side of the rear foot joint 210 facing the rear foot frame 200 is provided with a second support portion 113 along the direction parallel to the rotation axis Support part 213; when the front foot joint 110 and the rear foot joint 210 are rotated until the infant carrier is in the folded state, the first support part 113 and the second support part 213 are close, and the seat support joint 310 can be opposite to the front foot joint 110 and the rear foot joint 210 Rotate forward to achieve forward folding, or rotate backward to achieve backward folding; when the front foot joint 110 and the rear foot joint 210 are rotated until the infant carrier is in the open state, the first support portion 113 and the second support The first support portion 311 abuts against the first support portion 113 and the second support arm 312 abuts against the second support portion 213 to position the seat support joint 310 . Combined with Figures 6-7, more specifically:

Preferably, as shown in FIGS. 3-6 , the front foot joint 110 and the rear foot joint 210 are rotatably connected along a rotation axis; wherein the front foot joint 110 is provided with a first chute 112, and the rear foot joint 210 is provided with a second chute 212 . The first chute 112 and the second chute 212 have overlapping areas in a plane perpendicular to the axis of rotation; the seat support joint 310 is fixedly connected to the side of the front foot joint 110 and the rear foot joint 210 with a connecting pin 313, and the connecting pin 313 is inserted into the first joint 310. A sliding groove 112 and a second sliding groove 212 are used to connect the seat support joint 310 with the front foot joint 110 and the rear foot joint 210 . In this preferred embodiment, the overlapping area of the first chute 112 and the second chute 212 changes with the rotation of the front foot joint 110 and the rear foot joint 210 , and is inserted into the first chute 112 and the second chute 212 The connecting pin 313 in the seat support joint 310 can lock or release the relative rotation of the front foot joint 110 and the rear foot joint 210 while realizing the rotatable connection between the seat support joint 310 and the front foot joint 110 and the rear foot joint 210 .

In an embodiment shown in Figures 4a and 4b: the first chute 112 and the second chute 213 are arc-shaped with the rotation axis as the center; the front foot joint 110 and the rear foot joint 210 are rotated to the point where the infant load When the tool is in the open state, the overlapping area of the first sliding groove 112 and the second sliding groove 213 is reduced, the connecting pin 313 is limited by the first sliding groove 112 and the second sliding groove 213, and the connecting pin 313 limits the front foot joints 110 and 213. The rear foot joint 210 is locked and restricted from further opening, so that the infant carrier maintains the preset open state; when the front foot joint 110 and the rear foot joint 210 are rotated until the infant carrier is in the folded state, the first slide The overlapping area of the groove 112 and the second sliding groove 213 is increased, and the connecting pin 313 can slide in the overlapping area; in this embodiment, when the infant carrier is in the folded state, the connecting pin 313 slides on the first sliding The sliding in the groove 112 and the second sliding groove 213 enables the position of the seat support joint 310 to be changed, which is convenient for folding.

Further, as shown in FIGS. 4a to 6 , the cross-section of the connecting pin 313 is non-circular, and the width of a part of the cross-section of the connecting pin 313 is greater than the width of the first chute 112 or the second chute 212; according to In this structure, the connecting pin 313 cannot rotate relative to the first sliding groove 112 and the second sliding groove 212 . When the front foot joint 110 and the rear foot joint 210 are rotated until the infant carrier is in the folded state and the overlapping area of the first sliding groove 112 and the second sliding groove 212 is increased, the connecting pin 313 can slide in the overlapping area, thereby making the seat The support joint 310 can be folded by rotating forward or backward relative to the front foot joint 110 and the rear foot joint 210; when the front foot joint 110 and the rear foot joint 210 are rotated until the infant carrier is in the open state, the first chute 112 and the second When the overlapping area of the sliding grooves 212 is reduced, the connecting pin 313 is limited by the first sliding groove 112 and the second sliding groove 212, and the connecting pin 313 also limits the further opening of the front foot joint 110 and the rear foot joint 210. At this time, the connecting pin 313 The seat support joint 310 can play an auxiliary limiting role.

In another embodiment shown in FIGS. 7a-7c : the first chute 112 and the second chute 212 are linear, and the diameter of the cross section of the connecting pin 313 is smaller than or equal to the first chute 112 and the second chute 212; the connecting pin 313 can rotate in the first chute 112 and the second chute 212, so that the seat support joint 310 can be folded by rotating forward or backward relative to the front foot joint 110 and the rear foot joint 210. In this embodiment, the rotation of the seat support joint 310 is not restricted even when the infant carrier is in the open state.

In other embodiments different from the foregoing two embodiments, the first chute 112 and the second chute 212 may also be arc-shaped or other shapes.

As shown in FIG. 2 , FIG. 6 and FIG. 7 : a first support portion 113 is provided on the side of the front foot joint 110 facing the front foot frame 100 along a direction parallel to the rotation axis, and the side of the rear foot joint 210 facing the rear foot frame 200 is parallel to the rotation axis. A second support portion 213 is provided in the direction of the rotation axis. When the front foot joint 110 and the rear foot joint 210 are rotated until the infant carrier is in the open state, the first support portion 113 and the second support portion 213 are away from each other; the front foot joint 110 and the rear foot joint 210 are rotated until the infant carrier is in the folded state In the state, the first support portion 113 and the second support portion 213 are close to each other. The seat support joint 310 protrudes to both sides to form a first support arm 311 and a second support arm 312, respectively. When the front foot joint 110 and the rear foot joint 210 are rotated until the infant carrier is in the open state, the first support arm 311 is in contact with the first support arm 311. Connected to the first support portion 113 , the second support arm 312 abuts against the second support portion 213 .

It can be understood that, the first support portion 113 and the second support portion 213 are disposed on the rotational path of the seat support joint 310 relative to the front foot joint 110 and the rear foot joint 210 . When the infant carrier is in the open state, the front foot joint 110 and the rear foot joint 210 are opened, the first support part 113 and the second support part 213 are far away, and the first support part 311 abuts against the first support part 113 and the second support part 213 . The support arm 312 abuts against the second support portion 213 to limit the rotation of the seat support joint 310 relative to the front foot joint 110 and the rear foot joint 210 , so as to reliably limit the seat support joint 310 . When the infant carrier is in the folded state, the front foot joint 110 and the rear foot joint 210 are folded, the first support part 113 and the second support part 213 are close, and the seat support joint 310 can rotate relative to the front foot joint 110 and the rear foot joint 210 at this time , to achieve forward folding or backward folding.

Specifically, as shown in FIGS. 2 and 3 , in this embodiment, the first support portion 113 and the second support portion 213 are respectively tubular structures. In other embodiments different from this embodiment, the first support portion The 113 and the second support portion 213 can also be in the shape of a long rod. The first support arm 311 and the second support arm 312 are respectively bent in the direction of the first support portion 113 and the second support portion 213, so that when the front foot joint 110 and the rear foot joint 210 are rotated until the infant carrier is in an open state, The first support arm 311 and the second support arm 312 correspondingly hold the first support portion 113 and the second support portion 213 . Further, the first support portion 113 and the second support portion 213 pass through the entire frame, and both ends of the first bearing portion 300 and the second bearing portion 300 are respectively connected to the front foot joints 110 and 110 disposed on opposite inner sides of the frame. Hind foot joint 210 . Based on the arrangement of the first support portion 113 and the second support portion 213 , the seat support joints 310 on both sides of the frame can be positioned reliably, thereby providing reliable support for the bearing portion 300 mounted on the frame.

Further, as shown in FIG. 2 and FIG. 3 , the first support portion 113 and the second support portion 213 are respectively sleeved with shaft sleeves 113 a and 213 a at the positions where they are clamped with the first support arm 311 and the second support arm 312 . . The arrangement of the shaft sleeves 113a and 213a can reduce the friction between the seat support joint 310 and the first support part 113 and the second support part 213 .

Since the infant carrier provided by the present invention has the above-mentioned bidirectional foldable structure of the seat, the carrier 300 can be conveniently folded under the state of forward installation or rearward installation of the carrying portion 300 . More specifically, in the infant carrier provided by the present invention, the carrying portion 300 includes a seat portion 330 and a backrest portion 340, and the backrest portion 340 can be rotated relative to the seat portion 330 to realize the folding of the carrying portion 300, thereby further reducing the size. The volume of the infant carrier of the present invention when folded.

Specifically, as shown in FIGS. 8 and 9 , the backrest portion 340 and the seat portion 330 are rotatably connected, and the seat portion 330 is provided with a circular arc centered on the axis of rotation of the backrest portion 340 and the seat portion 330 . At least two backrest angle adjustment slots 331, the backrest portion 340 is provided with an adjustment bayonet 341 that moves toward the direction of the rotation axis of the backrest portion 340 and the seat portion 330; the adjusting bayonet 341 can be selectively snapped into any backrest The backrest angle adjustment slot 331 is used to adjust the inclination angle of the backrest portion 340 , or the backrest angle adjustment slot 331 is withdrawn so that the backrest portion 340 rotates relative to the seat portion 330 to fold the bearing portion 300 .

Specifically, as shown in FIG. 8 , the adjusting pin 341 always has an action tendency to be inserted into the backrest angle adjusting groove 331 ; the bearing portion 300 further includes a backrest adjusting handle 350 , and the backrest adjusting handle 350 is disposed on the backrest portion 340 . The side away from the seat portion 330, and the backrest adjustment handle 350 is connected to the adjustment bayonet 341 via a rigid traction rope (not shown in the figure); , so that the backrest part 340 and the seat part 330 can rotate relative to each other to adjust the inclination angle of the backrest or to fold the carrying part 300 .

Compared with the prior art, the seat provided by the present invention has a bidirectional foldable structure, the seat support joint 310 can be rotated relative to the front foot joint 110 and the rear foot joint 210, and a first support portion 113 is provided on the side of the front foot joint 110 close to the front foot frame. 2. A second support portion 213 is provided on the side of the rear foot joint 210 close to the rear foot frame, and the seat support joint 310 protrudes toward both sides to form a first support arm 311 and a second support arm 312, so that when the infant carrier is in the retracted position In the folded state, the first support part 113 and the second support part 213 are close to each other, the seat support joint 310 can rotate relative to the front foot joint 110 and the rear foot joint 210, and when the seat support joint 310 rotates forward relative to the front foot joint 110 and the rear foot joint 210 The forward folding is achieved, and the rearward folding is achieved when the seat support joint 310 rotates backward relative to the front foot joint 110 and the rear foot joint 210 . According to the bidirectional foldable structure of the seat provided by the present invention, there is no restriction on the position of the carrying portion when the infant carrier is folded, and the carrying portion 300 can be conveniently folded regardless of whether the carrying portion 300 is in the forward or rearward direction.

The above disclosures are only the preferred embodiments of the present invention, which of course cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope of the present invention.

Claims (10)

1. A bidirectional foldable structure of a seat, suitable for an infant carrier, the infant carrier comprises a front foot joint arranged on the upper end of the front foot frame, a rear foot joint arranged on the upper end of the rear foot frame, and a seat for supporting the bearing portion. Support joint, the front foot joint and the rear foot joint are rotatably connected along a rotation axis, and it is characterized in that: the seat support joint can rotate relative to the front foot joint and the rear foot joint, and the seat support joint is to both sides The protrusions form a first support arm and a second support arm respectively; a first support part is provided on the side of the front foot joint facing the front foot frame along a direction parallel to the rotation axis, and the rear foot joint faces the rear foot One side of the frame is provided with a second support portion along the direction parallel to the rotation axis; when the front foot joint and the rear foot joint are rotated until the infant carrier is in a folded state, the first support portion Close to the second support part, the seat support joint can rotate forward relative to the front foot joint and the rear foot joint to realize forward folding, or rotate backward to realize rearward folding; when the front foot joint When the joint and the rear foot joint are rotated until the infant carrier is in an open state, the first support part and the second support part are far away, and the first support arm abuts against the first support part , the second support arm abuts against the second support portion to position the seat support joint. 2 . The bidirectional foldable structure of the seat according to claim 1 , wherein the front foot joint is provided with a first chute, the rear foot joint is provided with a second chute, and the first chute and the The second chute has an overlapping area in a plane perpendicular to the rotation axis; a connecting pin is fixedly connected to the side of the seat support joint facing the front foot joint and the rear foot joint, and the connecting pin is inserted into the The first chute and the second chute are used to realize the rotatable connection of the seat support joint with the front foot joint and the rear foot joint. 3 . The bidirectionally foldable seat structure according to claim 2 , wherein the first chute and the second chute are arc-shaped with the rotation axis as the center; When the front foot joint and the rear foot joint are rotated until the infant carrier is in an open state, the overlapping area of the first chute and the second chute is reduced, and the connecting pin is blocked by the first chute. and the second chute limit; when the front foot joint and the rear foot joint are rotated until the infant carrier is in the folded state, the overlapping area of the first chute and the second chute Enlarged, the connecting pin can slide in the overlapping area. 4 . The bidirectional foldable structure of the seat according to claim 3 , wherein the cross-section of the connecting pin is non-circular, and the width of a partial area of the cross-section of the connecting pin is larger than that of the first slider. 5 . The width of the slot or the second chute. 5 . The bidirectional foldable structure of the seat according to claim 2 , wherein the first chute and the second chute are linear; the diameter of the cross-section of the connecting pin is less than or equal to the diameter of the connecting pin. 6 . the width of the first chute and the second chute. 6 . The bidirectional foldable structure of the seat according to claim 1 , wherein the first support portion and the second support portion are clamped with the first support arm and the second support arm. 7 . The positions of the shafts are respectively sleeved with shaft sleeves. 7. An infant carrier, comprising a front foot frame, a rear foot frame and a bearing part, the upper end of the front foot frame is provided with a front foot joint, the upper end of the rear foot frame is provided with a rear foot joint, the front foot joint and the rear foot joint are provided It is rotatably connected along a rotation axis; the bearing part is installed forward or backward through the seat support joint; it is characterized in that: the infant carrier further comprises the seat according to any one of claims 1-6 A two-way collapsible structure is provided, and the two-way collapsible structure of the seat is symmetrically arranged on the left and right sides of the infant carrier. 8 . The infant carrier according to claim 7 , wherein the infant carrier further comprises an armrest frame, the lower end of the armrest frame is provided with an upper joint, the front foot joint, the rear foot joint and the The upper joint is rotatably connected along a rotation axis, one of the front foot joint, the rear foot joint and the upper joint is provided with a bayonet, and the front foot joint, the rear foot joint and the upper joint are The other two are respectively provided with card slots; when the front foot joints, the rear foot joints and the upper joints are rotated until the infant carrier is in an open state, the card pins move into the card slots , so that the infant carrier remains in an open state. 9 . The infant carrier according to claim 7 , wherein the carrying portion comprises a seat portion and a backrest portion, the backrest portion and the seat portion are rotatably connected, and the seat portion is rotatably connected along the At least two backrest angle adjustment slots are arranged in the circular arc direction centered on the rotation axis of the backrest portion and the seat portion, and the backrest portion is provided with a direction toward the backrest portion and the seat. Adjustment bayonet that moves in the direction of the rotation axis of the backrest; the adjusting bayonet can be selectively snapped into any of the backrest angle adjusting bayonet slots to adjust the inclination angle of the backrest portion, or withdraw from the backrest angle The card slot is adjusted so that the backrest part rotates and folds the bearing part relative to the seat part. 10 . The infant carrier according to claim 9 , wherein the adjusting bayonet has an action tendency to be stuck into the backrest angle adjusting bayonet; the carrying portion further comprises a backrest adjusting handle, 11 . The backrest adjusting handle is arranged on the side of the backrest portion away from the seat portion, and the backrest adjusting handle is connected to the adjusting pin via a rigid traction rope; the backrest adjusting handle is operated to drive the The adjusting bayonet exits the backrest angle adjusting bayonet slot, so that the backrest portion and the seat portion can be rotated relative to each other to be folded.

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