CN221642539U - Connecting joint, supporting device for child carrier, and child carrier - Google Patents

Abstract

The utility model relates to a connecting joint, a supporting device for a child carrier and a child carrier. The connecting joint comprises: a first pivot seat; a first mounting seat pivotally connected to the first pivot seat and used for detachably mounting a second mounting seat of an attachment device; a first locking member mounted between the first pivot seat and the first mounting seat; the first locking member has a first locking position for locking the first pivot seat and the first mounting seat, and a first unlocking position; a first unlocking member and a second unlocking member mounted on the first mounting seat, the first unlocking member or the second unlocking member being operably connected to the first locking member; the first unlocking member or the second unlocking member being adapted to drive the first locking member to move from the first locking position to the first unlocking position when driven by a second driving member of the second mounting seat, so as to allow the first pivot seat and the first mounting seat to rotate relative to each other.

Description

Connecting joint, supporting device for child carrier, and child carrier

Technical Field

The utility model relates to the field of children's products, and more specifically, to a connecting joint, a supporting device of a children's carrier and the children's carrier.

Background Art

In order to facilitate storage, the frame and seat of a stroller are generally designed to be foldable. At present, there are two main ways to fold a stroller: one is that the seat is non-detachably mounted on the frame, and multiple foldable brackets on the same side of the seat and the frame are non-detachably connected through a connecting joint. The connecting joint has multiple locking members arranged along the axial direction and a release member for controlling the multiple locking members. When the multiple locking members are in the locked position, the locked brackets cannot rotate around the pivot. When it is necessary to change the opening or folding state of the stroller, the release member is pressed, and the multiple locking members are synchronously pushed to the release position, and each bracket can rotate around the pivot. The other is that the seat is detachably mounted on the frame, and the mounting seat of the seat is locked by a locking pin after being clamped together with the mounting seat of the frame. The folding of the seat and the frame are independent of each other. When it is necessary to change the opening or folding state of the stroller, the seat is removed from the frame, and the seat and the frame are opened or folded respectively.

Utility Model Content

The utility model aims to provide a connection joint, which can be folded without disassembling the attachment device. The utility model also provides a support device for a child carrier and the child carrier.

In one aspect, the utility model provides a connecting joint, comprising: a first pivot seat; a first mounting seat, pivotally connected to the first pivot seat, and used for detachably mounting a second mounting seat of an attachment device; a first locking member, mounted between the first pivot seat and the first mounting seat; the first locking member has a first locking position for locking the first pivot seat and the first mounting seat, and a first releasing position; a first releasing member and a second releasing member, the first releasing member and the second releasing member are mounted on the first mounting seat, the first releasing member or the second releasing member is operably connected to the first locking member; the first releasing member or the second releasing member is suitable for driving the first locking member to move from the first locking position to the first releasing position when driven by a second driving member of the second mounting seat, so as to allow the first pivot seat and the first mounting seat to rotate relative to each other.

Further, the first pivot seat is located on a first side of the first mounting seat, the first release member is located on a second side of the first mounting seat, and the second side of the first mounting seat is used to connect with the second mounting seat.

Further, an end surface of the second side of the first mounting seat is provided with a mounting recess, and the first release member is located in the mounting recess.

Furthermore, a chamber is formed between the first pivot seat and the first mounting seat, and the first locking member is a first locking gear and is axially movably arranged in the chamber; a first elastic return member is installed in the chamber, and the first elastic return member is used to drive the first locking member to the first locking position.

Furthermore, the first release member is pivotally connected to the first mounting seat via a first axis, the first release member has a first pushing portion, and the first pushing portion is used to push the first locking member; the first pivot seat is pivotally connected to the first mounting seat via a first pivot, and the first pivot is perpendicular to the first axis.

Further, the first release member has a first abutting portion, the first abutting portion is suitable for being pushed by the second driving member, and the first abutting portion has an avoiding portion.

Furthermore, the connecting joint further comprises a first driving member, wherein the first driving member is sandwiched between the first releasing member and the first locking member, and the first releasing member drives the first locking member through the first driving member.

Further, the second releasing member is operably connected to the first releasing member, and the second releasing member is adapted to be driven by the second driving member, thereby driving the first releasing member to release the first locking member.

Further, the first release member is pivotally connected to the first mounting seat via a first axis; the second release member is pivotally connected to the first mounting seat via a second axis, and the second axis is parallel to the first axis; the first end of the second release member is engaged with the first release member, and the second end of the second release member has a second abutment portion, and the second abutment portion is suitable for being pushed by the second driving member.

Furthermore, when the second release member is not subjected to an external driving force, the second abutting portion protrudes outward from the first mounting seat; and the second abutting portion has an inclined abutting surface.

Further, the first release member has a first connection portion sleeved on the first shaft, the second release member has a second connection portion sleeved on the second shaft, and the first connection portion and the second connection portion are clamped together by a toothed structure.

Furthermore, the connecting joint also includes a fixing frame, and the first axis and the second axis are respectively connected to the fixing frame; the first pivot seat is located on the first side of the first mounting seat, and the end surface of the second side of the first mounting seat is provided with a mounting recess, and the fixing frame is installed in the mounting recess.

On the other hand, the utility model provides a supporting device for a child carrier, including a first rotating frame, a second rotating frame, and the above-mentioned connecting joint, wherein the first rotating frame is connected to the first pivot seat, and the second rotating frame is connected to the first mounting seat.

In yet another aspect, the utility model provides a child carrier, comprising a child carrying device and the above-mentioned supporting device, wherein the child carrying device serves as the attachment device and has the second mounting seat.

Furthermore, the child carrying device includes a folding joint, the folding joint includes the second mounting seat, and the folding joint has a second pivot; the second driving member is slidably connected to the second mounting seat, and the sliding direction of the second driving member is perpendicular to the second pivot; when the folding joint is folded, the second driving member slides relative to the second mounting seat.

Furthermore, the folding joint also includes a second pivot seat, a third pivot seat, a second locking member, and a third releasing member; wherein the second mounting seat, the second pivot seat and the third pivot seat are pivotally connected via the second pivot; the second locking member has a second locking position for locking the second pivot seat and the third pivot seat, and a second releasing position; the third releasing member is used to drive the second locking member to move from the second locking position to the second releasing position to allow the second pivot seat and the third pivot seat to rotate relative to each other; the second driving member is connected to the second pivot seat via the third driving member; when the second mounting seat and the second pivot seat rotate relative to each other, the third driving member drives the second driving member to slide relative to the second mounting seat.

Furthermore, the child carrying device also includes a folding joint, which includes the second mounting seat and has a second pivot; the second driving member is slidably connected to the second mounting seat, and the sliding direction of the second driving member is parallel to the second pivot; when the folding joint is folded, the second driving member slides relative to the second mounting seat.

Furthermore, the folding joint also includes a second pivot seat, a third pivot seat, a third locking member, and a fourth releasing member; wherein the second mounting seat, the second pivot seat, the third pivot seat and the fourth releasing member are pivotally connected via the second pivot; the third locking member is installed between the second mounting seat and the second pivot seat; the third locking member has a third locking position for locking the second mounting seat and the second pivot seat, and a third releasing position; the fourth releasing member is used to drive the third locking member to move from the third locking position to the third releasing position to allow the second mounting seat and the second pivot seat to rotate relative to each other; the second driving member is integrally formed with or attached to the third locking member.

The connection joint provided by the utility model can release the first locking member under the drive of the second driving member of the attachment device to allow the first pivot seat and the first mounting seat to rotate relative to each other. That is, the connection joint can switch from the expanded state to the folded state without disassembling the attachment device, thereby simplifying the folding operation of the connection joint and the attachment device. In addition, different types of attachment devices can be installed on the connection joint, and the first locking member can be released by driving the first locking member or the second locking member through the second driving member of the attachment device, thereby improving the versatility of the connection joint.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and the description thereof are used to explain the present invention and do not constitute an improper limitation on the present invention.

FIG1 schematically shows a perspective view of a child carrier according to an embodiment of the present invention, wherein the child carrier is in an unfolded state;

FIG2 schematically shows a side view of the child carrier shown in FIG1 , wherein the child carrier is in an unfolded state;

FIG3 schematically shows a partial cross-sectional view taken along line A-A in FIG2 , showing an embodiment of a connecting joint of a supporting device of a child carrier, wherein the first locking member is in a first locking position;

FIG4 schematically shows a partial cross-sectional view taken along line A-A in FIG2 , showing an embodiment of a connecting joint of a supporting device of a child carrier, wherein the first locking member is in a first unlocking position;

FIG5 schematically shows a perspective view of the child carrier shown in FIG1 , wherein the child carrier is in a folded state;

FIG6 schematically shows a perspective view of the child carrier shown in FIG1 , wherein the child carrying device and the supporting device are in a separated state;

FIG. 7 schematically shows an exploded view of a connection joint of the support device of the child carrier shown in FIG. 1 in one direction;

FIG8 schematically shows an exploded view of the connection joint of the supporting device of the child carrier shown in FIG1 in another direction;

FIG9 schematically shows a side view of the child carrying device of the child carrier shown in FIG1 , wherein the child carrying device is in an unfolded state;

FIG10 schematically shows a side view of the child carrying device of the child carrier shown in FIG1 , wherein the child carrying device is in a folded state;

FIG11 schematically shows a partial exploded view of the folding joint of the child carrying device shown in FIG9 in one direction;

FIG12 schematically shows a partial exploded view of the folding joint of the child carrying device shown in FIG9 in another direction;

Fig. 13 schematically shows a partial cross-sectional view taken along line B-B in Fig. 9 , with the second locking member being in a second locking position;

Fig. 14 schematically shows a partial cross-sectional view taken along line B-B in Fig. 9 , wherein the second locking member is in a second unlocking position;

FIG15 schematically shows a cross-sectional view of the folding joint of the child carrying device shown in FIG9 , which shows the motion state of the planetary gear train;

FIG16 schematically shows a partial exploded view of the second mounting seat of the folding joint of the child carrying device shown in FIG9 ;

FIG17 schematically shows a perspective view of the second mounting seat and the third driving member of the folding joint of the child carrying device shown in FIG9 ;

FIG18 schematically shows a perspective view of the second pivot seat and the third driving member of the folding joint of the child carrying device shown in FIG9 ;

FIG19 schematically shows a front view of a second pivot seat of the folding joint of the child carrying device shown in FIG9 ;

FIG. 20 schematically shows a partial cross-sectional view taken along line A-A in FIG. 2 , showing another embodiment of a connecting joint of a supporting device in a child carrier, wherein the first locking member is in a first locking position;

FIG. 21 schematically shows a partial cross-sectional view taken along line A-A in FIG. 2 , showing another embodiment of a connecting joint of a supporting device in a child carrier, wherein the first locking member is in a first unlocking position;

FIG22 schematically shows a perspective view of a child carrier according to another embodiment of the present invention, wherein the child carrier is in an unfolded state;

FIG23 schematically shows a side view of the child carrier shown in FIG22 , wherein the child carrier is in an unfolded state;

Fig. 24 schematically shows a partial cross-sectional view taken along line C-C in Fig. 23 , wherein the first locking member is in a first locking position;

Fig. 25 schematically shows a partial cross-sectional view taken along line C-C in Fig. 23 , wherein the first locking member is in a first unlocking position;

FIG26 schematically shows a perspective view of the child carrier shown in FIG22 , wherein the child carrier is in a folded state;

FIG27 schematically shows a side view of the child carrying device in the child carrier shown in FIG22 , wherein the child carrying device is in an unfolded state;

Fig. 28 schematically shows a partial cross-sectional view taken along line D-D in Fig. 27 , wherein the third locking member is between a third locking position and a third unlocking position;

FIG. 29 schematically shows an exploded view of the folding joint of the child carrying device shown in FIG. 27 in one direction; and

FIG. 30 schematically shows an exploded view of the folding joint of the child carrying device shown in FIG. 27 in another direction.

DETAILED DESCRIPTION

Referring to FIG. 1 and FIG. 22 , a child carrier 1000 provided according to an embodiment of the present invention is shown. The child carrier 1000 includes a child carrying device 400 and a supporting device 300 provided according to an embodiment of the present invention, and the child carrying device 400 is used as an attachment device for being detachably mounted on the supporting device 300. The child carrying device 400 has a folding joint 200, and the supporting device 300 has a connecting joint 100 provided according to an embodiment of the present invention, and the folding joint 200 is detachably connected to the connecting joint 100, so that the child carrying device 400 is detachably connected to the supporting device 300. In the embodiment of the present invention, the child carrier 1000 is described by taking a child stroller as an example, and the supporting device 300 is more specifically a frame of the child stroller, and the child carrying device 400 can be a foldable seat, a folding frame for use in combination with an infant carrier, etc. In an alternative embodiment, the type of the child carrier 1000 is not limited to a child stroller, and can be, for example, a child bed frame or other products. According to the type of the child carrier 1000, the types of the support device 300 and the child carrying device 400 also change accordingly. In addition, the application scope of the connection joint 100 provided in the embodiment of the utility model is not limited to the child carrier 1000, and it can be applied to any suitable product.

Referring to FIG. 1 , in some embodiments, the structure of the child carrier 1000 is substantially bilaterally symmetrical. The support device 300, for example, includes a rider 91, a front leg frame 92, a rear leg frame 95, a connecting joint 100, etc. Among them, the rider 91 and the front leg frame 92 are connected on the same side by a connecting joint 100, and the rider 91 is pivoted to the rear leg frame 95. More specifically, the connecting joint 100 includes a first pivot seat 11 and a first mounting seat 12, and the first pivot seat 11 and the first mounting seat 12 are pivoted to each other by a first pivot 101 (see FIG. 3 ) and can rotate relative to each other. In some embodiments, the first pivot seat 11 has a connecting tube 1101, and the rider 91 is sleeved with the connecting tube 1101 as a first rotating frame. The first mounting seat 12 has a connecting tube 1201, and the front leg frame 92 is sleeved with the connecting tube 1201 as a second rotating frame.

It should be noted that, unless otherwise clearly specified and limited, the directional terms such as "front", "rear", "left", and "right" in the embodiments of the present invention are based on the "front", "rear", "left", and "right" directions of the child riding in the child carrier, and the arrows H and P are used to schematically indicate the "front" and "rear" directions, and the arrows L and R are used to schematically indicate the "left" and "right" directions. These directional terms are only used to make the description of the embodiments of the present invention clearer, and are not used to improperly limit the scope of protection of the present invention.

Referring to FIG. 1 , in some embodiments, the child carrying device 400 includes a front bracket 94, a rear bracket 93, a folding joint 200, etc. Among them, the same side of the front bracket 94 and the rear bracket 93 is connected by a folding joint 200. More specifically, the folding joint 200 includes a second mounting seat 21, a second pivoting seat 22, and a third pivoting seat 23, and the second mounting seat 21, the second pivoting seat 22, and the third pivoting seat 23 are pivoted together and can rotate relative to each other. The second mounting seat 21 is used to be detachably mounted on the first mounting seat 12 of the connecting joint 100, so that the child carrying device 400 can be detachably mounted on the supporting device 300. In some embodiments, the second pivoting seat 22 has a connecting tube 2201, and the rear bracket 93 is sleeved with the connecting tube 2201 as a third rotating frame. The third pivoting seat 23 has a connecting tube 2301, and the front bracket 94 is sleeved with the connecting tube 2301 as a fourth rotating frame.

Referring to FIGS. 2 to 4 , in some embodiments, the connecting joint 100 further includes a first locking member 13, which is installed between the first pivot seat 11 and the first mounting seat 12. The first locking member 13 has a first locking position and a first unlocking position. In some embodiments, a chamber 10 is formed between the first pivot seat 11 and the first mounting seat 12, and the first locking member 13 can be a first locking gear and is axially movably arranged in the chamber 10. More specifically, referring to FIGS. 3 , 4 , 7 and 8 , the first pivot 101 passes through a center hole 1100 of the first pivot seat 11, a center hole 1300 of the first locking member 13 and a center hole 1200 of the first mounting seat 12. In some embodiments, the first pivot seat 11 has an inner gear ring 113, and the first mounting seat 12 has an inner gear ring 123. Referring to FIG3 , when the first locking member 13 is in the first locking position, the first locking member 13 is meshed with the inner gear ring 113 and the inner gear ring 123 at the same time, thereby locking the relative position of the first pivot seat 11 and the first mounting seat 12. Referring to FIG4 , when the first locking member 13 is in the first unlocking position, the first locking member 13 moves along the first pivot axis 101 into the first pivot seat 11 and is disengaged from the inner gear ring 123 of the first mounting seat 12, thereby enabling the first pivot seat 11 and the first mounting seat 12 to rotate relative to each other. In some alternative embodiments, the first locking member 13 may also have other implementations, such as a latch-type structure.

Referring to Fig. 4, Fig. 5 and Fig. 7, in some embodiments, a first elastic return member 15 may be installed in the chamber 10, and the first elastic return member 15 is used to apply a force to the first locking member 13 to return the first locking member 13 to the first locking position. In some embodiments, the first elastic return member 15 is, for example, a spring, and the spring is installed between the first pivot seat 11 and the first locking member 13. In some alternative embodiments, according to different implementations of the first locking member 13, the implementation of the first elastic return member 15 is also changed accordingly.

2 to 5 , in some embodiments, the connection joint 100 further includes a first release member 14 , which is mounted on the first mounting seat 12 and operably connected to the first locking member 13 .

The first release member 14 is used to drive the first locking member 13 to move from the first locking position to the first unlocking position. In some embodiments, the first release member 14 is pivotally connected to the first mounting seat 12 via a first shaft 1211, and the first shaft 1211 is perpendicular to the first pivot 101. The first release member 14 includes a first pushing portion 141. When the first release member 14 is driven by, for example, a second driving member 211 (the second driving member 211 will be described below), the first release member 14 rotates around the first shaft 1211, and the first pushing portion 141 directly or indirectly pushes the first locking member 13, so that the first locking member 13 moves from the first locking position to the first unlocking position.

3 and 4 , in some embodiments, the first release member 14 further includes a first abutting portion 142, which is, for example, plate-shaped, and the first pushing portion 141 is, for example, extended from the first abutting portion 142. The function of the first abutting portion 142 will be described below.

Referring to Figures 2 and 3 again, when the child carrier 1000 is in the unfolded state, the support device 300 and the child carrying device 400 are both in the unfolded state, and the first locking member 13 is in the first locking position. As can be seen from the above, the first locking member 13 in the first locking position locks the first pivot seat 11 and the first mounting seat 12 so that the two cannot rotate relative to each other. Referring to Figures 4 and 5, when folding the child carrier 1000, the child carrying device 400 can be folded first. During the folding process of the child carrying device 400, the second driving member 211 installed on the second mounting seat 21 of the folding joint 200 moves. The movement of the second driving member 211 indirectly drives the first release member 14 of the connecting joint 100 of the support device 300 to move, so that the first release member 14 drives the first locking member 13 to move from the first locking position to the first release position. As can be seen from the above, the first locking member 13 in the first unlocking position unlocks the first pivot seat 11 and the first mounting seat 12, allowing them to rotate relative to each other, so that the support device 300 can switch from the unfolded state shown in FIG. 2 to the folded state shown in FIG. 5 .

The connecting joint 100 provided in the embodiment of the utility model can realize the switching from the unfolded state to the folded state without disassembling the folding joint 200 of the child carrying device 400, thereby simplifying the folding operation of the connecting joint 100, the supporting device 300 and the child carrying device 400. Of course, when the child carrying device 400 is disassembled from the supporting device 300, the user can directly operate the first unlocking member 14 to release the first locking member 13.

Referring to FIGS. 6 and 7 , in some embodiments, the first pivot seat 11 is located at a first side (also referred to as the outer side) 12a of the first mounting seat 12, and the first release member 14 is located at a second side (also referred to as the inner side) 12b of the first mounting seat 12, and the second side 12b of the first mounting seat 12 is used to connect with the second mounting seat 21. In some embodiments, when the child carrying device 400 is installed on the support device 300, the first release member 14 is covered by the second mounting seat 21, so that the first release member 14 can be prevented from being accidentally touched. More specifically, when the child carrying device 400 is in an unfolded state and supporting a child, the support device 300 is prevented from being accidentally folded due to the first release member 14 being accidentally touched.

Referring to FIG. 6 , an exemplary structure of the first mounting seat 12 of the connecting joint 100 and the second mounting seat 21 of the folding joint 200 is shown. The second side 12b of the first mounting seat 12 is provided with a locking hole 120, and the second side 12b of the first mounting seat 12 has a U-shaped clamping platform 121 protruding outward. The clamping platform 121 is located below the locking hole 120, and the end surface of the clamping platform 120 (also the end surface of the second side 12b of the first mounting seat 12) is provided with a mounting recess 1210 (see FIG. 7 ), and the first release member 14 is located in the mounting recess 1210. The second mounting seat 21 has a through hole 2108 and a clamping groove 210 on one side facing the first mounting seat 12. Referring to FIG. 3 and FIG. 4 in combination, a locking member 2101, a release member 2102 and an elastic reset member 2103 are installed on the second mounting seat 21. The locking member 2101 is, for example, a locking pin. The elastic return member 2103 drives the locking member 2101 to extend from the through hole 2108. The release member 2102 is operably connected to the locking member 2101 to drive the locking member 2101 to retract into the through hole 2108.

3, 4 and 6, when the second mounting seat 21 is mounted on the first mounting seat 12, the slot 210 of the second mounting seat 21 is engaged with the platform 121 of the first mounting seat 12, and the locking member 2101 is inserted into the lock hole 120. When the second mounting seat 21 needs to be disassembled, the release member 2102 is pressed, and the locking member 2101 is driven by the release member 2102 to withdraw from the lock hole 120, and then the slot 210 of the second mounting seat 21 is disengaged from the platform 121 of the first mounting seat 12.

Referring to FIGS. 3, 4, 7 and 8, in some embodiments, the connecting joint 100 further includes a first driving member 16, which is sandwiched between the first release member 14 and the first locking member 13, and the first release member 14 indirectly drives the first locking member 13 through the first driving member 16. In some embodiments, the first driving member 16 includes, for example, a pushing portion 161 and a contact portion 162, the contact portion 162 is, for example, disc-shaped, and the pushing portion 161 includes, for example, at least one leg extending from the contact portion 161. The contact portion 162 is located in the mounting recess 1210 and contacts the first pushing portion 141 of the first release member 14. The wall of the first mounting seat 12 between the mounting recess 1210 and the chamber 10 is provided with at least one through hole 1208, and the pushing portion 161 passes through the through hole 1208 and contacts the first locking member 13. The push portion 161 is slidably matched with the through hole 1208 to guide the first driving member 16 to move axially in the first pivot 101. By providing the first driving member 16 that moves in the axial direction, the design difficulty of the first unlocking member 14 can be reduced, and the first unlocking member 14 only needs to push the first driving member 16 to move through the first push portion 141.

Referring to FIG. 4 , in some embodiments, the first release member 14 rotates around the first shaft 1211 when the second release member 17 (the second release member 17 will be described below) is driven by the second driving member 211, and the rotation of the first release member 14 drives the first driving member 16 to release the first locking member 13, so that the first locking member 13 moves from the first locking position to the first unlocking position. It can be understood that when the driving force applied by the second driving member 211 to the first release member 14 is cancelled, the first elastic reset member 15 will drive the first locking member 13 to return to the first unlocking position from the first unlocking position, and accordingly, the first driving member 16 is reset by the driving of the first locking member 13, and the first release member 14 is reset by the driving of the first driving member 16. In some alternative embodiments, a torsion spring for resetting the first release member 14 can be installed on the first shaft 1211.

3 and 4, in some embodiments, the connection joint 100 further includes the second release member 17, which is mounted on the first mounting seat 12 and operably connected to the first release member 14. As can be seen from the above, in some embodiments, when the child carrying device 400 is switched from the unfolded state to the folded state, the second driving member 211 moves along a direction perpendicular to the second pivot 201 (the second pivot 201 will be described below), and drives the first release member 14 to release the first locking member 13 through the second release member 17.

Referring to FIGS. 3, 4, 7 and 8, in some embodiments, the second release member 17 is located in the mounting recess 1210, and the second release member 17 is pivotally connected to the first mounting seat 12 via a second shaft 1212. The second shaft 1212 is parallel to the first shaft 1211. The first end of the second release member 17 is engaged with the first release member 14, and the second end of the second release member 17 has a second abutment portion 172. In some embodiments, when the child carrying device 400 switches from the unfolded state to the folded state, the second driving member 211 moves and pushes the second abutment portion 172, so that the second release member 17 rotates around the second shaft 1212. The rotation of the second release member 17 drives the first release member 14 to rotate around the first shaft 1211, and the rotation of the first release member 14 further drives the first locking member 13 to release. On the contrary, when the child carrying device 400 switches from the folded state to the unfolded state, the second driving member 211 is reset and no longer pushes the second abutting portion 172 of the second release member 17. As can be seen from the above, under the action of the first elastic reset member 15, the first locking member 13, the first driving member 16, and the first release member 14 are reset, and the second release member 17 is reset together with the first release member 14. In some alternative embodiments, a torsion spring for resetting the second release member 17 can be installed on the second shaft 1212.

3 and 6, in some embodiments, when the second release member 17 is not subjected to an external driving force, the second abutting portion 172 protrudes outward from the first mounting seat 12. When the second driving member 211 moves in a direction perpendicular to the second pivot 201, it can easily push the second abutting portion 172. In some embodiments, the second abutting portion 172 has an inclined abutting surface 1721, and the second driving member 211, for example, has an inclined pushing surface 2011 for abutting against the inclined abutting surface 1721. The cooperation between the inclined pushing surface 2011 and the inclined abutting surface 1721 helps the second release member 17 to rotate smoothly.

Referring to FIGS. 3, 4, 7 and 8, exemplary engagement modes of the first release member 14 and the second release member 17 are shown. The first release member 14 has a first connection portion 143 mounted on the first shaft 1211, and the first connection portion 143 has a first toothed structure (teeth) 1431. The second release member 17 has a second connection portion 171 mounted on the second shaft 1212, and the second connection portion 171 has a second toothed structure (teeth) 1711. The first toothed structure 1431 of the first connection portion 143 and the second toothed structure 1711 of the second connection portion 171 are engaged. This gear linkage mode of the first release member 14 and the second release member 17 can, on the one hand, increase the pushing stroke of the first release member 14, and on the other hand, reduce the pushing force of the second release member 17 and increase the pushing stability of the second release member 17, thereby increasing the stability and effectiveness of the unlocking process of the connection joint 100 and realizing the rapid folding of the connection joint 100. In some alternative embodiments, the first release member 14 and the second release member 17 may also be snap-connected or movably connected via other suitable structures.

Referring to Fig. 7 and Fig. 8, in some embodiments, the connection joint 100 may further include a fixing frame 18, and the fixing frame 18 includes, for example, two opposite side walls 182 and a plate 181 connected between the two side walls 182. The plate 181 and the two side walls 182 define a recess 180. The two side walls 182 are provided with mounting holes 1821 and 1822. The first shaft 1211 is mounted in the mounting hole 1821, and the second shaft 1212 is mounted in the mounting hole 1822. The first connecting portion 143 and the second connecting portion 171 are accommodated in the recess 180. The fixing frame 18 is mounted in the mounting recess 1210, and the plate 181 partially closes the opening of the mounting recess 1210 to prevent external parts from interfering with the clamping of the first connecting portion 143 and the second connecting portion 171.

Referring to FIGS. 9 to 12 , schematic structures of the child-carrying mechanism 400 and its folding joint 200 in FIG. 1 are shown. The child-carrying mechanism 400 is, for example, a folding frame used in combination with an infant carrier. The folding joint 200 includes a second locking member 24, a third unlocking member 25, and the aforementioned second mounting seat 21, the second pivoting seat 22, and the third pivoting seat 23. The second pivot 201 (see FIG. 3 ) passes through the center hole 2100 of the second mounting seat 21, the center hole 2200 of the second pivoting seat 22, and the center hole 2300 of the third pivoting seat 23. The second mounting seat 21, the second pivoting seat 22, and the third pivoting seat 23 are pivotally connected by the second pivot 201 and can rotate relative to each other. The second pivoting seat 22 is sandwiched between the second mounting seat 21 and the third pivoting seat 23. In some embodiments, the diameter of the central hole 2200 of the second pivot seat 22 may be much larger than the diameter of the second pivot 201 , and the second pivot seat 22 is indirectly pivotally connected to the second pivot 201 via the second mounting seat 21 and/or the third pivot seat 23 .

Referring to FIG. 13 and FIG. 14 , the second locking member 24 has a second locking position and a second unlocking position. In the second locking position, the second locking member 24 locks the second pivot seat 22 and the third pivot seat 23 so that the two cannot rotate relative to each other, and the child-carrying device 400 remains in the unfolded state. In the second unlocking position, the second locking member 24 unlocks the second pivot seat 22 and the third pivot seat 23, allowing the two to rotate relative to each other, allowing the child-carrying device 400 to switch to the folded state. In some embodiments, a locking hole 220 is provided on the second pivot seat 22, and a through hole 230 is provided on the third pivot seat 23, and the second locking member 24 is slidably provided in the through hole 230. The sliding direction of the second locking member 24 is, for example, parallel to the second pivot axis 201. When the locking hole 220 is opposite to the through hole 230, the first end 241 of the second locking member 24 is inserted into the locking hole 220, that is, the second pivot seat 22 and the third pivot seat 23 are locked. Conversely, the first end 241 of the second locking member 24 is withdrawn from the locking hole 220 , thereby releasing the second pivoting seat 22 and the third pivoting seat 23 .

Referring to FIG. 6 and FIG. 12 , in some embodiments, the third release member 25 is mounted on the third pivot seat 23 and is operably connected to the second locking member 24. The third release member 25 is used to drive the second locking member 24 to move from the second locking position to the second release position. In some embodiments, the third release member 25 includes a pivoting portion 251, the pivoting portion 251 has a hole 250, and a pivot 2511 is installed in the hole 250. In some embodiments, the edge of the third pivot seat 23 has a notch 231, and the pivot 2511 is installed in the notch 231, so that the third release member 25 is pivoted to the third pivot seat 23 through the pivot 2511. Referring to FIG. 14 , the second end of the second locking member 24 is connected to the third release member 25. When the third release member 25 is subjected to an external pulling force, the third release member 25 rotates around the pivot 2511, and drives the second locking member 24 to move from the second locking position to the second release position. In some embodiments, the third release member 25 is plate-shaped, and when the second locking member 24 is in the second locking position, the third release member 25 is suitable for fitting on a side of the third pivot seat 23 facing the other folding joint 200 (also referred to as the side facing away from the second pivot seat 22).

Referring to FIGS. 11 to 14 , in some embodiments, the second end of the second locking member 24 is in a sheet shape and is provided with an elongated hole 240. The inner side of the third release member 25 facing the third pivot seat 23 is provided with a slot 252, and the second end of the second locking member 24 is inserted into the slot 252. The wall of the slot 252 is provided with a mounting hole 2520, and the fastener 253 is installed in the mounting hole 2520, and the portion of the fastener 253 located in the slot 252 passes through the elongated hole 240. When the third release member 25 is rotated around the pivot 2511 by an external pulling force, the second locking member 24 moves from the second locking position to the second unlocking position through the cooperation of the fastener 253 and the elongated hole 240.

Referring to FIG. 12 , in some embodiments, the third release member 25 is further provided with a hole 255, and the pulling member 203 (see FIG. 1 ) is connected to the third release member 25 through the hole 255. The left and right ends of the pulling member 203 can be connected to the third release members 25 of the two folding joints 200 on the left and right sides of the child carrying device 400, thereby synchronously driving the second locking members 24 of the two folding joints 200 to release. In some embodiments, the pulling member 203 can be a webbing, a plastic strip, a rope, etc.

Referring to FIG. 12 , in some embodiments, the folding joint 200 may further include an elastic reset member 262, which is used to drive the third release member 25 to reset, thereby driving the second locking member 24 to insert into the locking hole 220. In some embodiments, an elongated countersunk hole 254 is provided on the third release member 25, and the elongated countersunk hole 254 has a step portion 2541. A fastener 261 may be installed on the side of the third pivot seat 23 facing away from the second pivot seat 22, and the fastener 261 passes through the elongated countersunk hole 254, and the fastener 261 has a head 2611. The fastener 261 is, for example, parallel to the second pivot 201. The elastic reset member 262 may be a spring sleeved on the fastener 261, and the two ends of the spring are respectively in contact with the head 2611 of the fastener 261 and the step portion 2541 of the elongated countersunk hole 254. When the third release member 25 is subjected to external tension and rotates around the pivot 2511, the elastic reset member 262 is compressed. When the external pulling force on the third release member 25 is removed, the elastic reset member 262 drives the third release member 25 to reset. In some embodiments, to facilitate the installation of the fastener 261, a boss 236 can be provided on the side of the third pivot seat 23 facing away from the second pivot seat 22, and the fastener 261 is fixed to a hole (not numbered in the figure) of the boss 236. In some alternative embodiments, the elastic reset member 262 can also have other implementations, for example, the elastic reset member 262 is a torsion spring sleeved on the pivot 2511.

Referring to FIG. 15 , in some embodiments, the second mounting seat 21, the second pivoting seat 22 and the third pivoting seat 23 are linked by a planetary gear train, so that the child carrying device 400 can be more conveniently and labor-savingly unfolded or folded. More specifically, referring to FIG. 11 , a sun gear 271 is provided on the side of the third pivoting seat 23 facing the second pivoting seat 22. Referring to FIG. 17 , one or more planetary gears 272 are provided on the side of the second mounting seat 21 facing the second pivoting seat 22, and the second mounting seat 21 serves as a planet carrier. Referring to FIG. 19 , an inner gear ring 273 is provided on the side of the second pivoting seat 22 facing the third pivoting seat 23. The sun gear 271, the planetary gears 272 and the inner gear ring 273 constitute a planetary gear train. Referring again to FIG. 15 , when one of the second pivot seat 22 and the third pivot seat 23 is subjected to force (the force-bearing situation includes: under the premise that the folding joint 200 is unlocked, at least one of the second pivot seat 22 and the third pivot seat 23 is only subjected to gravity), under the action of the planetary gear train, the second mounting seat 21, the second pivot seat 22, and the third pivot seat 23 all pivot around the second pivot 201, so that the child carrying device 400 can be folded quickly and labor-savingly.

It can be understood that when the child carrying device 400 needs to be unfolded, force is applied to one of the second pivot seat 22 and the third pivot seat 23, and under the action of the planetary gear train, the folding joint 200 can be easily and quickly switched to the unfolded state.

Referring to FIGS. 16 to 18 , in some embodiments, the second driving member 211 is connected to the second mounting seat 21 in a relatively slidable manner, and the second driving member 211 is connected to the second pivot seat 22 via a third driving member 213. When the folding joint 200 is folded, the second mounting seat 21 and the second pivot seat 22 rotate relative to each other, and the third driving member 213 drives the second driving member 211 to slide relative to the second mounting seat 21 in a direction perpendicular to the second pivot 201. More specifically, a slide groove 2130 is provided on the outer side of the second mounting seat 21, and the second driving member 211 is slidably disposed in the slide groove 2130. An elongated hole 2104 is provided in the slide groove 2130. The third driving member 213 is, for example, a bent connecting rod, and is arranged between the second mounting seat 21 and the second pivot seat 22. The first end of the third driving member 213 is provided with a hole 2131, the second driving member 211 is provided with a hole 2110, and the pivot 2111 is inserted through the hole 2110, the elongated hole 2104, and the hole 2131. That is, the first end of the third driving member 213 is pivotally connected to the second driving member 211 through the pivot 2111. The second end of the third driving member 213 is provided with a hole 2132, and the third driving member 213 is pivotally connected to the edge of the second pivot seat 22 through the pivot (not numbered in the figure) inserted through the hole 2132.

Referring to Fig. 9 again, when the child carrying device 400 is in the unfolded state, the second driving member 211 is located at one end of the slide slot 2130. Referring to Fig. 10, when the child carrying device 400 is in the folded state, the second driving member 211 is located at the other end of the slide slot 2130. Referring to Fig. 3 and Fig. 4, the position change of the second driving member 211 can drive the second release member 17 to rotate, thereby indirectly driving the first release member 14 to rotate, so as to release the first locking member 13.

Referring to FIG. 12 again, in some embodiments, the second pivot seat 22 may be provided with an arc-shaped limit groove 22110, and the limit groove 22110 is used to slide with the second locking member 24. More specifically, when the third release member 25 is pulled and the second locking member 24 withdraws from the locking hole 220, the second pivot seat 22 and the third pivot seat 23 may be slightly rotated relative to each other, and then the external pulling force applied to the third release member 25 is released. Under the action of the elastic reset member 262, the third release member 25 is reset and the second locking member 24 is driven to insert into the limit groove 22110. The limit groove 22110 may also limit the pivot angle range of the second pivot seat 22 and the third pivot seat 23. In some embodiments, the limit groove 22110 and the locking hole 220 are connected by a slit, and it can be understood that the second locking member 24 cannot pass through the slit from one of the limit groove 22110 and the locking hole 220 to the other.

Referring to FIG. 20 and FIG. 21 , another embodiment of the connection joint 100 provided by the present utility model is shown. The difference between this embodiment and the connection joint 100 described above is that the first driving member 16 is omitted, and the first pushing portion 141 of the first release member 14 includes, for example, at least one leg, and the first pushing portion 141 passes through at least one through hole 1208 of the first mounting seat 12 and directly abuts against the first locking member 13. This helps to reduce the number of parts and facilitates assembly.

Referring to FIG. 22 and FIG. 23 , another child carrier 1000 provided by an embodiment of the utility model is shown. The child carrier 1000 includes a child carrying device 400 and a support device 300 provided according to an embodiment of the utility model. Referring to FIG. 24 and FIG. 25 , the support device 300 of the child carrier 1000 has the same structure as the aforementioned support device 300, and the structure of the connecting joint 100 of the support device 300 can be referred to the above description, which will not be repeated here. The difference between the child carrier 1000 and the child carrier 1000 shown in FIG. 1 is that the child riding device 400 takes a foldable seat as an example, the structure of the child carrying device 400 and its folding joint 200 are different from the aforementioned embodiments, and the implementation of the second driving member 211 is also different.

Referring to FIGS. 24 to 26 , the child riding device 400 includes a seat tube 97, a backrest tube 98, a folding joint 200, etc. Among them, the seat tube 97 and the backrest tube 98 are connected on the same side by a folding joint 200. More specifically, the folding joint 200 includes a second mounting seat 21, a second pivoting seat 22, a third pivoting seat 23, a third locking member 28, and a fourth releasing member 29. The second mounting seat 21, the second pivoting seat 22, the third pivoting seat 23, and the fourth releasing member 29 are pivotally connected together and can rotate relative to each other. The third locking member 28 is used to lock the second mounting seat 21 and the second pivoting seat 22, and the fourth releasing member 29 is used to drive the third locking member 28 to release.

As can be seen from the above, the second mounting seat 21 is used to be detachably mounted on the first mounting seat 12 of the connecting joint 100, so that the child carrying device 400 can be detachably mounted on the supporting device 300. Referring to FIG. 27, in some embodiments, the second pivot seat 22 has a connecting tube 2201, and the seat tube 97 is sleeved with the connecting tube 2201 of the second pivot seat 22 as a fifth rotating frame. The third pivot seat 23 has a connecting tube 2301, and the backrest tube 98 is sleeved with the connecting tube 2301 of the third pivot seat 23 as a sixth rotating frame.

Referring to FIGS. 28 to 30 , exemplary structures of the child support mechanism 400 and the folding joint 200 in FIG. 22 are shown. The second pivot 201 passes through the central hole 2100 of the second mounting seat 21, the central hole 2200 of the second pivot seat 22, the central hole 2300 of the third pivot seat 23, and the central hole 2900 of the fourth release member 29. The second mounting seat 21, the second pivot seat 22, the third pivot seat 23, and the fourth release member 29 are pivotally connected by the second pivot 201 and can rotate relative to each other. The second pivot seat 22 is sandwiched between the second mounting seat 21 and the third pivot seat 23, and the third pivot seat 23 is sandwiched between the second pivot seat 22 and the fourth release member 29.

Similar to the above-mentioned embodiment, the second mounting seat 21 has a through hole 2108, a through hole 2109 and a slot 210 on one side facing the first mounting seat 12. Referring to FIG. 28 and FIG. 29 , a locking member 2101, a release member 2102 and an elastic reset member 2103 are installed on the second mounting seat 21. The elastic reset member 2103 drives the locking member 2101 to extend from the through hole 2108. The release member 2102 extends into the second mounting seat 21 through the through hole 2109 and is operably connected to the locking member 2101 to drive the locking member 2101 to retract into the through hole 2108. When the second mounting seat 21 is mounted on the first mounting seat 12, the slot 210 of the second mounting seat 21 is engaged with the clamping platform 121 of the first mounting seat 12, and the locking member 2101 is inserted into the lock hole 120. When the second mounting seat 21 needs to be disassembled, the release member 2102 is pressed, and the locking member 2101 is driven to withdraw from the locking hole 120 , and then the locking slot 210 of the second mounting seat 21 is disengaged from the locking platform 121 of the first mounting seat 12 .

Referring to FIG. 28 , in some embodiments, a chamber 20 is formed between the second mounting seat 21 and the second pivot seat 22, and a third locking member 28 is accommodated in the chamber 20. The third locking member 28 may be a toothed wheel, and its center hole (see FIG. 30 ) 2800 is sleeved on the second pivot 201. The third locking member 28 is axially movable in the chamber 20, and has a third locking position and a third unlocking position. When the third locking member 28 is in the third locking position, the third locking member 28 is engaged with the second mounting seat 21 and the second pivot seat 22 at the same time, so that the relative position of the second mounting seat 21 and the second pivot seat 22 can be locked. When the third locking member 28 is in the third unlocking position, the third locking member 28 moves along the second pivot 201 into the second mounting seat 21 and disengages from the second pivot seat 22, so that the second mounting seat 21 and the second pivot seat 22 can rotate relative to each other. In some embodiments, an elastic reset member 26 is also installed in the chamber 20, and the elastic reset member 26 is used to drive the third locking member 28 to move to the third locking position. The elastic return member 26 is, for example, a spring, and is clamped between the second mounting seat 21 and the third locking member 28 .

Referring to FIGS. 28 and 29 , in some embodiments, at least one through hole 2105 is provided on the wall between the card slot 210 and the chamber 20. The second driving member 211, for example, includes at least one protruding finger, and the at least one protruding finger is integrally formed with or attached to the third locking member 28. As the at least one protruding finger of the second driving member 211, it is slidably matched with the at least one through hole 2105, so that the second driving member 211 and the second mounting seat 21 can be connected relatively slidably. It can be understood that the sliding direction of the second driving member 211 is parallel to the second pivot 201. As the third locking member 28 switches between the third locking position and the third unlocking position, the second driving member 211 is extended and retracted relative to the through hole 2105.

Referring to FIG. 24 , when the third locking member 28 is in the third locking position, the second driving member 211 does not protrude relative to the through hole 2105, and the second driving member 211 does not act on the first release member 14 and the second release member 17 of the joint 100, and the first locking member 13 is in the first locking position. Referring to FIG. 25 , when the third locking member 28 is in the third release position, the second driving member 211 protrudes relative to the through hole 2105, and the protruding finger of the second driving member 211 directly pushes the first abutting portion 142 of the first release member 14, so that the first release member 14 rotates around the first axis 1211, and directly or indirectly (without or through the first driving member 16) drives the first locking member 13 to move from the first locking position to the first release position.

Referring to FIGS. 29 and 30 , the third locking member 28 further includes at least one protruding finger 281. At least one through hole 2107 is provided on the wall between the slot 210 and the chamber 20. The protruding finger 281 is slidably matched with the through hole 2107. The protruding finger 281 and the protruding finger as the second driving member 211 are evenly arranged in the circumferential direction of the third locking member 28 to jointly guide the axial movement of the second driving member 211. Referring to FIG. 25 , the protruding finger as the second driving member 211 is away from the first shaft 1211, while the protruding finger 281 is close to the first shaft 1211. As can be seen from the above, the axial movement of the second driving member 211 pushes the first abutting portion 142 of the first unlocking member 14, so that the first unlocking member 14 rotates around the first shaft 1211, thereby releasing the first locking member 13. 7 and 25 , in some embodiments, the first abutting portion 142 is plate-shaped and has an escape portion 1420 corresponding to the protruding finger 281. The escape portion 1420 leaves room for the protruding finger 281 to prevent the protruding finger 281 from interfering with the normal unlocking rotation of the first unlocking member 14.

Referring to FIGS. 28 to 30 , in some embodiments, a first movable piece 221 is further installed in the chamber 20. The central hole 2210 of the first movable piece 221 is sleeved on the second pivot 201, and the first movable piece 221 is located between the third locking member 28 and the second pivot member 22. At least one abutting column 222 is provided on the first movable piece 221, and the abutting column 222 extends in a direction away from the third locking member 28. The second pivot seat 22 has at least one through hole 2203, and the abutting column 222 is slidably matched with the through hole 2203.

Referring to FIGS. 28 to 30 , in some embodiments, a chamber 30 is formed between the third pivot seat 23 and the fourth release member 29. A second movable piece 235 is installed in the chamber 30, and a central hole 2350 of the second movable piece 235 is sleeved on the second pivot 201. The second movable piece 235 has at least one push post 2351, and the third pivot seat 23 has at least one through hole 2303, and the at least one push post 2351 is slidably matched with the at least one through hole 2303. The at least one push post 2351 is used to push at least one abutment post 222, so that the first movable piece 221 pushes the third locking member 28 to move from the third locking position to the third release position. In some embodiments, an elastic reset member 232 may also be provided in the chamber 30, and the elastic reset member 232 is used to drive the second movable piece 235 to move in a direction away from the first movable piece 221. The elastic reset member 232 is, for example, a spring, and is sandwiched between the second movable piece 235 and the third pivot seat 23.

29 and 30, in some embodiments, the fourth release member 29 rotates relative to the third pivot seat 23 to drive the second movable piece 235 to move axially, so that the push column 2351 of the second movable piece 235 pushes the abutment column 222 of the first movable piece 221. In some embodiments, at least one first end face tooth 291 is provided on the fourth release member 29, and at least one second end face tooth 2352 is provided on the second movable piece 235. During the rotation of the fourth release member 29 relative to the third pivot seat 23, when the protrusion of the first end face tooth 291 abuts against the protrusion of the second end face tooth 2352, the second movable piece 235 moves axially, and the push column 2351 of the second movable piece 235 pushes the abutment column 22 of the first movable piece 221, so that the first movable piece 21 moves, thereby driving the third locking member 28 to move from the third locking position to the third unlocking position. When the protrusion of the first end face tooth 291 and the protrusion of the second end face tooth 2352 are staggered, the second movable piece 235 will move away from the first movable piece 231 to reset under the action of the elastic reset member 232, and the second end face tooth 2352 and the first end face tooth 291 are concave-convex matched.

Continuing to refer to FIG. 29 and FIG. 30 , in some embodiments, the third pivot member 23 and the fourth release member 29 are provided with a rotation limiting mechanism to limit the relative rotation range of the two. For example, an arc groove 2305 can be provided on the third pivot member 23, and an arc convex block 295 can be provided on the fourth release member 29, and the arc convex block 295 is located in the arc groove 2305. The two ends of the arc convex block 295 selectively abut against the two ends of the arc groove 2305, so as to limit the relative rotation range of the third pivot member 23 and the fourth release member 29. In some embodiments, the positions of the arc groove 2305 and the arc convex block 295 on the third pivot member 23 and the fourth release member 29 can be interchanged.

Continuing to refer to FIG. 29 and FIG. 30 , in some embodiments, the fourth release member 29 may also be provided with a hole 292, and the pulling member 204 (see FIG. 22 ) is connected to the fourth release member 29 through the hole 292. The pulling member 204 is pulled to make the fourth release member 29 rotate relative to the third pivot seat 23. The left and right ends of the pulling member 204 may be connected to the fourth release members 29 of the two folding joints 200 on the left and right sides of the child carrying device 400, thereby synchronously driving the third locking members 28 of the two folding joints 200 to release. In some embodiments, the pulling member 204 may be a webbing, a plastic strip, a rope, etc.

The folding operation of the child carrier 1000 is briefly described below in conjunction with FIG. 27 and FIG. 28. When the child carrier 1000 needs to be folded, the backrest tube 98 is first pushed forward and downward, at which time the first end face teeth 291 and the second end face teeth 2352 are matched with each other, and the fourth release member 29 rotates together with the third pivot seat 23. When the backrest tube 98 is folded into place, the push column 2351 of the second movable piece 235 is aligned with the abutment column 222 of the first movable piece 221. Then, a pulling force is applied to the pulling member 204 to rotate the fourth release member 29 relative to the third pivot seat 23. In the process of the protrusion of the first end face teeth 291 and the protrusion of the second end face teeth 2352 abutting against each other, the second movable piece 235 moves axially, and its push column 2351 pushes the abutment column 222 of the first movable piece 221, and the first movable piece 221 moves axially. The axial movement of the first movable piece 221 drives the third locking member 28 to move to the third unlocking position, and the second pivot seat 22 and the second mounting seat 21 can also rotate relative to each other, so that the child-bearing device 400 can be further folded. In addition, when the third locking member 28 moves to the third unlocking position, the second driving member 211 on the third locking member 28 directly pushes the first unlocking member 14. Referring to FIG. 25, combined with the above, it can be seen that the first unlocking member 14 is pushed by the second driving member 211 and rotates around the first axis 1211, thereby directly or indirectly driving the first locking member 13 to move to the first unlocking position. At this time, the supporting device 300 can be folded.

When the supporting device 300 is folded into place, the pulling force on the pulling member 204 is released, and under the action of the elastic reset member 232 and the elastic reset member 26, the second movable piece 235 is reset, and the first movable piece 221 and the third locking member 28 are reset, so that the first end face teeth 291 and the second end face teeth 2352 are matched with each other, and the third locking member 28 moves to the third locking position. The third locking member 28 drives the second driving member 211 to retract into the through hole 2105 and no longer pushes the first unlocking member 14. The first locking member 13 is reset to the first locking position under the action of the first elastic reset member 15, and the first locking member 13 drives the first unlocking member 14 to reset.

When the child carrier 1000 is in the folded state, a pulling force is applied to the pulling member 204 to drive the third locking member 28 and the first locking member 13 to move to their respective unlocking positions, so that the supporting device 300 and the child carrying device 400 can be easily unfolded again, thereby unfolding the child carrier 1000.

In summary, the supporting device 300 provided in the embodiment of the utility model, when its connecting joint 100 is provided with the first releasing member 14 and the second releasing member 17, the connecting joint can be detachably connected to the folding joint 200 of different types of child carrying devices 400. When the child carrying device 400 is not detached from the supporting device 300, during the folding process of the child carrying device 400, the first locking member 13 of the connecting joint 100 is indirectly released by the second driving member 211 of the folding joint 200, so that the supporting device 300 can also be folded.

The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims (18)

1. A connecting joint, comprising: a first pivot seat; a first mounting seat, pivotally connected to the first pivot seat, and used for detachably mounting a second mounting seat of the attachment device; A first locking member is installed between the first pivot seat and the first mounting seat; the first locking member has a first locking position for locking the first pivot seat and the first mounting seat, and a first unlocking position; A first release member and a second release member, wherein the first release member and the second release member are mounted on the first mounting seat, and the first release member or the second release member is operably connected to the first locking member; the first release member or the second release member is adapted to drive the first locking member to move from the first locking position to the first release position when driven by a second driving member of the second mounting seat, so as to allow the first pivot seat and the first mounting seat to rotate relative to each other. 2. The connecting joint according to claim 1 is characterized in that the first pivot seat is located on a first side of the first mounting seat, the first release member is located on a second side of the first mounting seat, and the second side of the first mounting seat is used to connect with the second mounting seat. 3 . The connection joint according to claim 2 , wherein an end surface of the second side of the first mounting seat is provided with a mounting recess, and the first release member is located in the mounting recess. 4. The connection joint according to claim 1, characterized in that: A chamber is formed between the first pivot seat and the first mounting seat, and the first locking member is a first locking gear and is axially movably disposed in the chamber; A first elastic return member is installed in the chamber, and the first elastic return member is used to drive the first locking member to the first locking position. 5. The connection joint according to claim 1, characterized in that: The first release member is pivotally connected to the first mounting seat via a first shaft, and the first release member has a first pushing portion, and the first pushing portion is used to push the first locking member; The first pivot seat is pivotally connected to the first mounting seat via a first pivot axis, and the first pivot axis is perpendicular to the first axis. 6 . The connection joint according to claim 5 , wherein the first release member has a first abutment portion, the first abutment portion is suitable for being pushed by the second driving member, and the first abutment portion has an avoidance portion. 7. The connection joint according to claim 1 is characterized in that the connection joint further comprises a first driving member, wherein the first driving member is clamped between the first releasing member and the first locking member, and the first releasing member drives the first locking member through the first driving member. 8. The connecting joint according to claim 1, characterized in that the second releasing member is operably connected to the first releasing member, and the second releasing member is suitable for being driven by the second driving member to drive the first releasing member to release the first locking member. 9. The connection joint according to claim 8, characterized in that: The first release member is pivotally connected to the first mounting seat via a first shaft; The second release member is pivotally connected to the first mounting seat via a second axis, and the second axis is parallel to the first axis; the first end of the second release member is engaged with the first release member, and the second end of the second release member has a second abutment portion, and the second abutment portion is suitable for being pushed by the second driving member. 10 . The connection joint according to claim 9 , wherein when the second release member is not subjected to an external driving force, the second abutting portion protrudes outward from the first mounting seat; and the second abutting portion has an inclined abutting surface. 11. The connection joint according to claim 9, characterized in that the first release member has a first connection portion sleeved on the first shaft, the second release member has a second connection portion sleeved on the second shaft, and the first connection portion and the second connection portion are clamped together by a toothed structure. 12. The connection joint according to claim 9, characterized in that: The connection joint further comprises a fixing frame, and the first shaft and the second shaft are respectively connected to the fixing frame; The first pivot seat is located on a first side of the first mounting seat, an end surface of a second side of the first mounting seat is provided with a mounting recess, and the fixing bracket is mounted in the mounting recess. 13. A support device for a child carrier, characterized in that it comprises a first rotating frame, a second rotating frame, and a connecting joint according to any one of claims 1 to 12, wherein the first rotating frame is connected to the first pivot seat, and the second rotating frame is connected to the first mounting seat. 14 . A child carrier, comprising a child carrying device and the supporting device according to claim 13 , wherein the child carrying device serves as the attachment device and has the second mounting seat. 15. The child carrier according to claim 14 is characterized in that the child carrying device includes a folding joint, the folding joint includes the second mounting seat, and the folding joint has a second pivot; the second driving member and the second mounting seat can be connected relatively slidably, and the sliding direction of the second driving member is perpendicular to the second pivot; when the folding joint is folded, the second driving member slides relative to the second mounting seat. 16. The child carrier according to claim 15, characterized in that the folding joint further comprises a second pivot seat, a third pivot seat, a second locking member, and a third releasing member; Wherein, the second mounting seat, the second pivot seat and the third pivot seat are pivotally connected via the second pivot shaft; The second locking member has a second locking position for locking the second pivot seat and the third pivot seat, and a second unlocking position; The third unlocking member is used to drive the second locking member to move from the second locking position to the second unlocking position, so as to allow the second pivot seat and the third pivot seat to rotate relative to each other; The second driving member is connected to the second pivot seat via a third driving member; When the second mounting seat and the second pivoting seat rotate relatively, the third driving member drives the second driving member to slide relative to the second mounting seat. 17. The child carrier according to claim 14 is characterized in that the child carrying device also includes a folding joint, the folding joint includes the second mounting seat, and the folding joint has a second pivot; the second driving member and the second mounting seat can be connected relatively slidably, and the sliding direction of the second driving member is parallel to the second pivot; when the folding joint is folded, the second driving member slides relative to the second mounting seat. 18. The child carrier according to claim 17, wherein the folding joint further comprises a second pivot seat, a third pivot seat, a third locking member, and a fourth releasing member; Wherein, the second mounting seat, the second pivoting seat, the third pivoting seat and the fourth release member are pivotally connected via the second pivot shaft; The third locking member is installed between the second mounting seat and the second pivoting seat; the third locking member has a third locking position for locking the second mounting seat and the second pivoting seat, and a third unlocking position; The fourth unlocking member is used to drive the third locking member to move from the third locking position to the third unlocking position, so as to allow the second mounting seat and the second pivoting seat to rotate relative to each other; The second driving member and the third locking member are integrally formed or attached together.