CONNECTION JOINT, SUPPORT DEVICE FOR CHILD CARRIER, AND CHILD CARRIER

Abstract

The present disclosure relates to a connection joint, a support device, and a child carrier. The connection joint includes a first rotating base, a first mounting base rotatably connected to the first rotating base and configured to removably mount a second mounting base of a child transport device, and a first locking member, a first unlocking member, and a second unlocking member attached between the first rotating base and the first mounting base. The first locking member has a first locked position and a first unlocked position, and in the first locked position, the first rotating base and the first mounting base are locked. The first unlocking member or the second unlocking member is configured to move the first locking member from the first locked position to the first unlocked position when driven by a second driving member of the second mounting base.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority from Chinese Patent Application No. 202211459699.9, filed on November 21, 2022, the entire contents of which are incorporated herein by reference. [Technical Field]

[0002] TECHNICAL FIELD The present disclosure relates to the field of children's products, and more particularly to connection joints, support devices for child carriers, and child carriers. [Background technology]

[0003] For ease of storage, stroller frames and seats are generally designed to be foldable. Currently, there are two main folding methods for strollers. In one method, the seat is permanently attached to the frame, and multiple foldable brackets are arranged on the same side of the seat and frame and permanently connected via a connecting joint. The connecting joint has multiple locking members arranged axially and an unlocking member for controlling the multiple locking members. When the multiple locking members are in the locked position, each locked bracket cannot rotate around its pivot axis. When the stroller needs to be opened or closed, the unlocking member is pressed, and the multiple locking members are synchronously pressed to the unlocked position, allowing each bracket to rotate around its pivot axis. In the other method, the seat is removably attached to the frame, and the mounting base of the seat and the mounting base of the frame engage and are latched with a pin. The seat and the frame can be folded independently. When it is necessary to change the open or closed state of the stroller, the seat is removed from the frame, and the seat and frame are unfolded or folded, respectively. Summary of the Invention

[0004] It is an object of the present disclosure to provide a connection joint that allows the child carrying device to be folded without disassembling the device.The present disclosure further provides a support device for a child carrier, and a child carrier.

[0005] The connection joint includes a first rotating base, a first mounting base, a first locking member, a first unlocking member, and a 2 and an unlocking member. The first mounting base is rotatably connected to the first rotating base and configured to be removably attached to a second mounting base of the child transport device. The first locking member is attached between the first rotating base and the first mounting base. The first locking member has a first locked position in which the first rotating base and the first mounting base are locked and a first unlocked position in which the first rotating base and the first mounting base are unlocked. The first unlocking member and a second unlocking member are attached to the first mounting base, and the first unlocking member or the second unlocking member is operably connected to the first locking member. The first unlocking member or the second unlocking member is configured to move the first locking member from the first locked position to the first unlocked position when driven by the second drive member of the second mounting base, thereby allowing the first rotating base to rotate relative to the first mounting base.

[0006] In one embodiment, the first rotating base is disposed on a first side of the first mounting base, and the first Unlock The member is disposed on a second side of the first mounting base, and the second side of the first mounting base is configured to be connected to a second mounting base.

[0007] In one embodiment, a mounting recess is provided on the end surface on the second side of the first mounting base, and the first unlocking member is disposed in the mounting recess.

[0008] In one embodiment, a chamber is formed between the first rotating base and the first mounting base, and the first locking member is a first locking gear axially movable within the chamber. The connection joint further includes a first elastic return member mounted within the chamber, the first elastic return member configured to drive the first locking member to the first locking position.

[0009] In one embodiment, the first unlocking member is rotatably connected to the first mounting base via a first shaft, and the first unlocking member includes a first pressing portion configured to press the first locking member. The first rotating base is rotatably connected to the first mounting base via a first rotating shaft, and the first rotating shaft is approximately perpendicular to the first shaft.

[0010] In one embodiment, the first unlocking member has a first abutment configured to be pressed by the second drive member.

[0011] In one embodiment, the connection joint further includes a first drive member sandwiched between the first unlocking member and the first locking member, the first unlocking member driving the first locking member via the first drive member.

[0012] In one embodiment, the second unlocking member is operably connected to the first unlocking member, and the second unlocking member Drive The locking member is configured to be driven by the member and to drive the first unlocking member to unlock the first locking member.

[0013] In one embodiment, the first unlocking member is rotatably connected to the first mounting base via a first shaft, and the second unlocking member is rotatably connected to the first mounting base via a second shaft, the second shaft being generally parallel to the first shaft, a first end of the second unlocking member being engaged with the first unlocking member, and a second end of the second unlocking member including a second abutment configured to be pressed by the second drive member.

[0014] In one embodiment, when the second unlocking member is not receiving an external driving force, the second abutment portion protrudes outward from the first mounting base.

[0015] In one embodiment, the second abutment portion has an inclined abutment surface, and the second drive member has an inclined pressing surface configured to abut against the inclined abutment surface.

[0016] In one embodiment, the first unlocking member includes a first connecting portion fitted onto the first shaft, and the second unlocking member includes a second connecting portion fitted onto the second shaft, the first connecting portion being engaged with the second connecting portion via a tooth structure.

[0017] In one embodiment, the connection joint further includes a fixed bracket, the first shaft and the second shaft are connected to the fixed bracket, the first rotating base is disposed on a first side of the first mounting base, a mounting recess is provided on an end surface on the second side of the first mounting base, and the fixed bracket is attached to the mounting recess.

[0018] The support device for a child carrier includes a first rotating frame, a second rotating frame, and the above-mentioned connection joint. The first rotating frame is connected to the first rotating base, and the second rotating frame is First mounting base is connected to.

[0019] The child carrier includes a child carrying device and the support device described above. The child carrying device includes a second mounting base.

[0020] In one embodiment, the child carrier includes a folding joint, the folding joint including a second mounting base, the folding joint including a second pivot shaft, a second drive member slidably connected to the second mounting base, and a sliding direction of the second drive member is substantially parallel to the second pivot shaft, and when the folding joint is folded, the second drive member slides relative to the second mounting base.

[0021] In one embodiment, the folding joint includes a second rotating base, a third rotating base, a second locking member, and a third Unlock The second mounting base, the second rotating base, and the third rotating base are rotatably connected to one another via a second rotation shaft. The second locking member has a second lock position where the second rotating base and the third rotating base are locked, and a second unlock position where the second rotating base and the third rotating base are unlocked. Unlock The member is configured to move the second locking member from the second locked position to the second unlocked position, thereby allowing the second rotating base to rotate relative to the third rotating base.

[0022] In one embodiment, the folding joint further includes a third drive member, and the second drive member is connected to the second rotating base via the third drive member. The second mounting base and the second rotating base rotate relative to each other. and, The third drive member causes the second drive member to slide relative to the second mounting base.

[0023] In one embodiment, the child carrier further includes a folding joint, the folding joint including a second mounting base, the folding joint including a second pivot shaft, the second drive member slidably connected to the second mounting base, and the sliding direction of the second drive member is substantially parallel to the second pivot shaft, and when the folding joint is folded, the second drive member slides relative to the second mounting base.

[0024] In one embodiment, the folding joint further includes a second rotating base, a third rotating base, a third locking member, and a fourth unlocking member. The second mounting base, the second rotating base, the third rotating base, and the fourth unlocking member are rotatably connected to one another via a second rotation shaft. The third locking member is attached between the second mounting base and the second rotating base, and has a third locked position in which the second mounting base and the second rotating base are locked, and a third unlocked position in which the second mounting base and the second rotating base are unlocked. The fourth unlocking member is configured to move the third locking member from the third locked position to the third unlocked position, thereby allowing the second mounting base to move relative to the second rotating base. The second driving member is integrally formed with the third locking member or attached to the third locking member.

[0025] According to the above-described connection joint, the first unlocking member or the second unlocking member can be driven by the second drive member of the child carrier to unlock the first locking member. This allows the first rotating base to rotate relative to the first mounting base. In other words, the connection joint can be switched from the unfolded state to the folded state without disassembling the child carrier, thereby simplifying the folding operation of the connection joint and the child carrier. In addition, various types of child carriers can be attached to the connection joint. Because the first unlocking member or the second unlocking member can be driven by the second drive member of the child carrier to unlock the first locking member, the versatility of the connection joint is improved.

[0026] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings for illustrating the embodiments or the prior art will be briefly introduced below. It should be noted that the accompanying drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings from these accompanying drawings without creative efforts. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a perspective view showing a child carrier according to an embodiment of the present disclosure in an unfolded state; [Figure 2] FIG. 2 is a side view of the child carrier shown in FIG. 1. [Figure 3] 3 is a partial cross-sectional view taken along line AA in FIG. 2, showing a state in which the first locking member is in a first locking position. [Figure 4] 3 is a partial cross-sectional view taken along line AA in FIG. 2, showing a state in which the first locking member is in a first unlocking position. [Figure 5] FIG. 2 is a perspective view showing the child carrier shown in FIG. 1 in a folded state. [Figure 6] 2 is a perspective view of the child carrier shown in FIG. 1, showing the child carrying device and the support device in a separated state; FIG. [Figure 7] 2 is an exploded view of a connecting joint of the support device of the child carrier shown in FIG. 1. [Figure 8] Similar to Figure 7, but from a different angle. [Figure 9] 2 is a side view of the child carrying device of the child carrier shown in FIG. 1 in an unfolded state. FIG. [Figure 10] 2 is a side view of the child carrying device of the child carrier shown in FIG. 1 in a folded position. [Figure 11] FIG. 10 is a partial exploded view of a folding joint of the child carrier shown in FIG. 9. [Figure 12] Similar to Figure 11, but from a different angle. [Figure 13] 10 is a partial cross-sectional view taken along line BB in FIG. 9, showing a state in which the second locking member is in a second locking position. [Figure 14] 10 is a partial cross-sectional view taken along line BB in FIG. 9, showing a state in which the second locking member is in a second unlocking position. [Figure 15] 10 is a cross-sectional view of a folding joint of the child carrier shown in FIG. 9. [Figure 16] 10 is a partial exploded view of a second mounting base of the folding joint of the child carrier shown in FIG. 9. FIG. [Figure 17]10 is a perspective view of a second mounting base and a third drive member of the folding joint of the child carrier shown in FIG. 9. [Figure 18] 10 is a perspective view of a second mounting base and a third drive member of the folding joint of the child carrier shown in FIG. 9. [Figure 19] 10 is a front view of a second mounting base of the folding joint of the child carrier shown in FIG. 9. [Figure 20] 3 is a partial cross-sectional view taken along line AA of FIG. 2 according to another embodiment of the present disclosure, showing a state in which a first locking member is in a first locking position. FIG. [Figure 21] 3 is a partial cross-sectional view taken along line AA of FIG. 2 according to another embodiment of the present disclosure, showing a state in which a first locking member is in a first unlocked position. FIG. [Figure 22] FIG. 10 is a perspective view showing a child carrier according to another embodiment of the present disclosure in an unfolded state. [Figure 23] 23 is a side view of the child carrier shown in FIG. 22. [Figure 24] 24 is a partial cross-sectional view taken along line CC in FIG. 23, showing the first locking member in a first locking position. FIG. [Figure 25] 24 is a partial cross-sectional view taken along line CC in FIG. 23, showing a state in which the first locking member is in a first unlocking position. FIG. [Figure 26] FIG. 23 is a perspective view showing the child carrier shown in FIG. 22 in a folded state. [Figure 27] 23 is a side view of a child carrying mechanism in the child carrier shown in FIG. 22. FIG. [Figure 28] 28 is a partial cross-sectional view taken along line DD in FIG. 27, showing the third locking member in a state between a third locked position and a third unlocked position. FIG. [Figure 29] 28 is an exploded view of the folding joint of the child carrier shown in FIG. 27. [Figure 30] Similar to Figure 29, but from a different angle. DETAILED DESCRIPTION OF THE INVENTION

[0028] Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, various embodiments of the present invention can be implemented in many different forms, and should not be construed as being limited to only the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be comprehensive and complete, so that the scope of the present invention will be fully conveyed to those skilled in the art. Components designated with the same or similar reference numerals refer to the same or similar components.

[0029] The terms used herein are for the purpose of describing particular embodiments and are not intended to limit the invention. As used herein, singular forms such as "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, the terms "comprises" and / or "comprising," when used herein, specify the presence of stated features, elements, steps, operations, components, and / or parts, but do not exclude the presence or addition of one or more other features, elements, steps, operations, elements, and / or parts, or groups thereof.

[0030] When an element is referred to as being "connected" or "coupled" to another element, it is understood that the element may be directly connected or coupled to the other element, or that other elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, it means that no other components are present.

[0031] In this specification, terms such as "first," "second," etc. may be used to describe various elements, but it is understood that these elements should not be limited by such terms. These terms are merely used to distinguish one element from another. Thus, a first element may be referred to as a second element without departing from the teachings of the present invention.

[0032] Unless otherwise expressly limited, the terms "front," "back," "left," and "right" in the embodiments of the present disclosure are based on the "front," "back," "left," and "right" of a child in a child carrier. In the drawings, arrows F and B are used to schematically indicate the "front" and "back" directions, and arrows L and R are used to schematically indicate the "left" and "right" directions. These directional terms are used merely to clarify the description of the embodiments of the present disclosure and are not intended to limit the scope of protection of the present disclosure.

[0033] 1 and 22 , a child carrier 1000 according to an embodiment of the present disclosure is shown. The child carrier 1000 includes a child carrying device 400 and a support device 300. The child carrying device 400 can be removably attached to the support device 300 as a mounting device. The child carrying device 400 includes a folding joint 200, and the support device 300 includes a connection joint 100. The folding joint 200 is removably connected to the connection joint 100, thereby removably connecting the child carrying device 400 to the support device 300. In the following embodiment, the child carrier 100 will be described using a stroller as an example. The support device 300 is a stroller frame. The child carrying device 400 may be a foldable seat or a foldable frame used in cooperation with an infant carrier. In another embodiment, the child carrier 100 is not limited to a stroller, but may also be a child bed frame or other child-related item. The type of support device 300 and the type of child carrying device 400 may be changed as appropriate depending on the specific type of child carrier 1000. In addition, the application range of the connection joint 100 is not limited to the child carrier 1000, but may be applied to any suitable product.

[0034] Referring to FIG. 1 , in some embodiments, the child carrier 1000 has a substantially symmetrical structure. The support device 300 includes a handlebar 91, a front frame 92, a rear frame 95, and a connection joint 100. The same sides of the handlebar 91 and the front frame 92 are connected by one connection joint 100, and the handlebar 91 is rotatably connected to the rear frame 95. More specifically, the connection joint 100 includes a first rotating base 11 and a first mounting base 12. The first rotating base 11 is rotatably connected to the first mounting base 12 via a first rotation shaft 101 (shown in FIG. 3 ). This allows the first rotating base 11 to rotate relative to the first mounting base 12. In some embodiments, the first rotating base 11 includes a first connecting barrel 1101, and the handlebar 91 is fitted into the connecting barrel 1101 as the first rotating frame. The first mounting base 12 includes a connecting barrel 1201, and the front frame 92 is fitted into the connecting barrel 1201 as a second rotating frame.

[0035] Referring to FIG. 1 , in some embodiments, the child carrier 400 includes a front bracket 94, a rear bracket 93, and two folding joints 200. The same sides of the front bracket 94 and the rear bracket 95 are connected by one folding joint 200. More specifically, the folding joint 200 includes a second mounting base 21, a second rotating base 22, and a third rotating base 23. The second mounting base 21, the second rotating base 22, and the third rotating base 23 are rotatably connected and can rotate relative to one another. The second mounting base 21 is configured to be removably attached to the first mounting base 21 of the connecting joint 100. This allows the child carrier 400 to be removably attached to the support apparatus 300. In some embodiments, the second rotating base 22 includes a connecting barrel 2201, and the rear bracket 93 is fitted into the connecting barrel 2201 as a third rotating frame. The third rotating base 23 includes a connecting barrel 2301, and the front bracket 94 is fitted into the connecting barrel 2301 as a fourth rotating frame.

[0036] 2 to 4, in some embodiments, the connection joint 100 includes a first locking member 13, which is attached between the first rotating base 11 and the first mounting base 12. The first locking member 13 has a first locked position and a first unlocked position. In some embodiments, a chamber 10 is formed between the first rotating base 11 and the first mounting base 12, and the first locking member 13 may be a first lock gear movably disposed within the chamber 10. More specifically, with reference to FIGS. 3, 4, 7, and 8, the first rotating shaft 101 extends through a central hole 1100 of the first rotating base 11, a central hole 1300 of the first locking member 13, and a central hole 1200 of the first mounting base 12. 3, when the first locking member 13 is in the first locking position, the first locking member 13 is simultaneously engaged with the inner gear 113 and the inner gear 123, thereby locking the first rotating base 11 and the first mounting base 12. Referring to FIG. 4, when the first locking member 13 is in the first unlocking position, the first locking member 13 moves along the first rotation shaft 101 into the first rotating base 11 and locks the first mounting base 12. base 12. This allows the first rotating base 11 to rotate relative to the first mounting base 12. In some other embodiments, the first locking member 13 can be implemented by other specific examples, such as a latch-type structure.

[0037] 4, 5, and 7, in some embodiments, the connection joint 100 further includes a first elastic return member 15 mounted within the chamber 10. The first elastic return member 15 is configured to apply a force to the first locking member 13 to return the first locking member 13 to the first lock position. In some embodiments, the first elastic return member 15 is a spring, and the spring is disposed between the first rotating base 11 and the first locking member 13. In some other embodiments, the configuration of the first elastic return member 15 is appropriately changed depending on the configuration of the first locking member 13.

[0038] 2 to 5, in some embodiments, the connection joint 100 further includes a first unlocking member 14. The first unlocking member 14 is attached to the first mounting base 12 and operably connected to the first locking member 13. The first unlocking member 14 is configured to move the first locking member 13 from the first locked position to the first unlocked position. In some embodiments, the first unlocking member 14 is rotatably connected to the first mounting base 12 via a first shaft 1211, which is approximately perpendicular to the first rotation axis 101. The first unlocking member 14 includes a first pressing portion 141. When the first unlocking member 14 is driven, for example, by a driving force from a second driving member 211 (the second driving member 211 will be described later), the first pressing portion rotates around the first shaft 1211. At this time, the first unlocking member 14 directly or indirectly presses the first locking member 13, thereby allowing the first locking member 13 to move from the first locking position to the first unlocking position.

[0039] 3 and 4, in some embodiments, the first unlocking member 14 further includes a first abutting portion 142. The first abutting portion 142 may be plate-shaped, and the first pressing portion 141 may be formed by extending the first abutting portion 142. The function of the first abutting portion 142 will be described later.

[0040] 2 and 3, when the child carrier 1000 is in the unfolded state, the support apparatus 300 and the child carrying apparatus 400 are both in the unfolded state, and the first locking member 13 is in the first locking position. Therefore, the first locking member 13 in the first locking position locks the first rotating base 11 and the first mounting base 12, preventing the first rotating base 11 and the first mounting base 12 from rotating relative to each other. Referring to FIGS. 4 and 5, when folding the child carrier 100, the child carrying apparatus 400 may be folded first. During the folding operation of the child carrying apparatus 400, the second driving member 211 attached to the second mounting base 21 of the folding joint 200 moves, whereby the second driving member 211 indirectly drives and moves the first unlocking member 14 of the connection joint 100 of the support apparatus 300, and the first unlocking member 14 drives and moves the first locking member 13 from the first locked position to the first unlocked position. Therefore, the first locking member 13 in the first unlocked position unlocks the first rotating base 11 and the first mounting base 12, and the first rotating base 11 becomes rotatable relative to the first mounting base 12. This allows the support device 300 to be switched from the unfolded state shown in FIG. 2 to the folded state shown in FIG. 5.

[0041] The connection joint 100 provided by the embodiment of the present disclosure allows the child carrier 1000 to be switched from the unfolded state to the folded state without disassembling the folding joint 200 of the child carrying device 400. This simplifies the folding operations of the connection joint 100, the support device 300, and the child carrying device 400. After removing the child carrying device 400 from the support device 300, the user may directly operate the first unlocking member 14 to unlock the first locking member 13.

[0042] 6 and 7, in some embodiments, the first rotating base 11 is disposed on the first side 12a (also the outside) of the first mounting base 12. The first unlocking member 14 is disposed on the second side 12b (also the inside) of the first mounting base 12. The second side 12b of the first mounting base 12 is configured to be connected to the second mounting base 21. In some embodiments, when the child carrying device 400 is attached to the support device 300, the first locking member 14 is covered by the second mounting base 21. This prevents the first locking member 14 from unintentionally coming into contact with the outside. More specifically, when the child carrying device 400 is in the unfolded state and supporting a child, this prevents the first unlocking member 14 from accidentally coming into contact with the outside, which in turn prevents the support device 300 from unintentionally folding.

[0043] Referring to FIG. 6, the structures of the first mounting base 12 of the connection joint 100 and the second mounting base 21 of the folding joint 200 are illustrated. A locking hole 120 is provided on the second side 12b of the first mounting base 12, and the second side 12b of the first mounting base 12 has a U-shaped engagement tab 121 protruding outward. The engagement tab 121 is disposed below the locking hole 120, and an attachment recess 1210 (see FIG. 7) is provided on the end face of the tab 120 (i.e., the end face of the second side 12b). The first unlocking member 14 is disposed in the attachment recess 1210. A through hole 2108 and a lock slot 210 are provided on the side of the second mounting base 21 facing the first mounting base 12. Referring to FIGS. 3 and 4, a locking member 2101, an unlocking member 2102, and an elastic return member 2103 are attached to the second mounting base 21. The locking member 2101 may be a latch pin. The elastic return member 2103 drives the locking member 2101 to protrude from the through-hole 2108. The unlocking member 2102 is operably connected to the locking member 2101 and drives the locking member 2101 to retract into the through-hole 2108.

[0044] 3, 4, and 6, when the second mounting base 21 is attached to the first mounting base 12, the lock slot 210 of the second mounting base 21 is engaged with the engagement tab 121 of the first mounting base 12, and the lock member 2101 is inserted into the lock hole 120. When the second mounting base 21 needs to be disassembled, the unlock member 2102 is pressed, and the lock member 2101 is driven to exit from the lock hole 120 by the unlock member 2102, thereby allowing the engagement tab 121 of the first mounting base 12 to be disengaged from the lock slot 210 of the second mounting base 21.

[0045] 3, 4, 7, and 8, in some embodiments, the connection joint 100 further includes a first drive member 16. The first drive member 16 is sandwiched between the first unlocking member 14 and the first locking member 13. The first unlocking member 14 indirectly drives the first locking member 13 via the first drive member 16. In some embodiments, the first drive member 16 includes a pressing portion 161 and an abutting portion 162. The abutting portion 162 may be disk-shaped, and the pressing portion 161 includes at least one rod portion extending from the abutting portion 162. The abutting portion 162 is disposed in the mounting recess 1210 and abuts against the first pressing portion 141 of the first unlocking member 14. At least one through-hole 1208 is provided in a wall of the first mounting base 12 between the mounting recess 1210 and the chamber 10. The pressing portion 161 extends through the through hole 1208 and abuts against the first locking member 13. The pressing portion 161 is slidably engaged with the through hole 1208 and guides the first driving member 16 to move in the axial direction of the first rotating shaft 101. By providing the first driving member 16 that moves in the axial direction of the first rotating shaft 101, it is sufficient for the first unlocking member 14 to be able to push and move the first driving member 15 via the first pressing portion 141, which reduces the difficulty in designing the first unlocking member 14.

[0046] Referring to FIG. 4, in some embodiments, when the second unlocking member 17 (the second unlocking member 17 will be described later) is driven by the second driving member 211, the first unlocking member 14 rotates around the first rotation axis 1211. The rotation of the first unlocking member 14 drives the first driving member 16 to unlock the first locking member 13. This allows the first locking member 13 to move from the first locked position to the first unlocked position. Note that when the driving force applied to the first unlocking member 14 by the second driving member 211 is removed, the first elastic return member 15 drives the first locking member 13 to move from the first unlocked position to the second unlocked position. 1 Lock It should be understood that the first drive member 16 is driven and returned by the first lock member 13, and the first unlock member 14 is driven and returned by the first drive member 16. In some alternative embodiments, a torsion spring may be attached to the first pivot shaft 1211 to return the first unlock member 14.

[0047] 3 and 4, in some embodiments, the connection joint 100 further includes a second unlocking member 17. The second unlocking member 17 is attached to the first mounting base 12 and operably connected to the first unlocking member 14. Thus, in some embodiments, when the child carrier 400 switches from the unfolded state to the folded state, the second drive member 211 is movable in a direction substantially perpendicular to the second pivot axis 201 (the second pivot axis 201 will be described later). Unlock The first unlocking member 14 is driven via the member 17 to unlock the first locking member 13 .

[0048] 3, 4, 7, and 8, in some embodiments, the second unlocking member 17 is disposed in the mounting recess 1210. The second unlocking member 17 is rotatably connected to the first mounting base 12 via a second pivot shaft 1212. The second pivot shaft 1212 is substantially parallel to the first shaft 1211. A first end of the second unlocking member 17 is engaged with the first unlocking member 14, and a second end of the second unlocking member 17 includes a second abutment 172. In some embodiments, when the child carrier 400 switches from the unfolded state to the folded state, the second drive member 211 can move and press the second abutment 172, thereby allowing the second locking member 17 to rotate about the second pivot shaft 1212. Rotation of the second unlocking member 17 drives the first unlocking member 14 to rotate about the first shaft 1211, and rotation of the first unlocking member 14 drives the first locking member 13 to unlock. In contrast, when the child carrier 400 switches from the folded state to the unfolded state, the second driving member 211 returns and can no longer press against the second abutment portion 172 of the second unlocking member 17. Therefore, under the action of the first elastic return member 15, the first locking member 13, the first driving member 16, and the first unlocking member 14 return, and the second unlocking member 17 returns together with the first unlocking member 14. In some other embodiments, a torsion spring may be attached to the second shaft 1212 to return the second unlocking member 17.

[0049] 3 and 6, in some embodiments, when the second unlocking member 17 is not receiving an external driving force, the second abutment portion 172 protrudes outward from the first mounting base 12. When the second driving member 211 moves in a direction substantially perpendicular to the second rotation shaft 201, the second driving member 211 can easily press the second abutment portion 172. In some embodiments, the second abutment portion 172 has an inclined abutment surface 1721, and the second driving member 211 has an inclined pressing surface 2011 configured to abut against the inclined abutment surface 1721. Cooperation between the inclined pressing surface 2011 and the inclined abutment surface 1721 can assist in smooth rotation of the second unlocking member 17.

[0050] 3, 4, 7, and 8, an example of a method for locking the first unlocking member 14 and the second unlocking member 17 is shown. The first unlocking member 14 includes a first connecting portion 143 fitted onto the first shaft 1211. The first connecting portion 143 has a first tooth structure 1431. The second unlocking member 17 includes a second connecting portion 171 fitted onto the second shaft 1212. The second connecting portion 171 has a second tooth structure 1711. The first tooth structure 1431 of the first connecting portion 143 engages with the second tooth structure 1711 of the second connecting portion 171. The gear engagement between the first unlocking member 14 and the second unlocking member 17 increases the pressing stroke of the first unlocking member 14 while reducing the pressing force of the second unlocking member 17, improving the pressing stability of the second unlocking member 17. This improves the stability and efficiency of the unlocking operation of the connection joint 100 and enables quick closure of the connection joint 100. In some other embodiments, the first unlocking member 14 and the second unlocking member 17 may be engaged with each other or movably connected via other suitable structures.

[0051] 7 and 8 , in some embodiments, the connection joint 100 may further include a fixing bracket 18. The fixing bracket 18 includes two opposing 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. Two mounting holes 1821 and 1822 are provided in the two side walls 182. 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 housed in the recess 180. The fixing bracket 18 is mounted in the mounting recess 1210, and the plate 181 partially closes the opening of the mounting recess 1210, thereby preventing external components from interfering with the engagement between the first connecting portion 143 and the second connecting portion 171.

[0052] 9 to 12, the schematic structures of the child carrier device 400 and folding joint 200 shown in FIG. 1 are shown. The child carrier device 400 may be a folding frame used in cooperation with an infant carrier. The folding joint 200 includes a second locking member 24, a third unlocking member 25, a second mounting base 21, a second rotating base 22, and a third rotating base 23. A second rotating shaft 201 (see FIG. 3) extends through a central hole 2100 of the second mounting base 21, a central hole 2200 of the second rotating base 22, and a central hole 2300 of the third rotating base 23, in that order. The second mounting base 21, the second rotating base 22, and the third rotating base 23 are rotatably connected to each other via the second rotating shaft 201, thereby allowing them to rotate relative to each other. The second rotating base 22 is sandwiched between the second mounting base 21 and the third rotating base 23. In some embodiments, the diameter of the central hole 2200 of the second rotating base 22 may be significantly larger than the diameter of the second rotating shaft 201. The second rotating base 22 is indirectly rotatably connected to the second rotating shaft 201 via the second mounting base 21 and / or the third rotating base 23.

[0053] 13 and 14, the second locking member 24 has a second locked position and a second unlocked position. In the second locked position, the second locking member 24 locks the second rotating base 22 and the third rotating base 23. This prevents the second rotating base 22 and the third rotating base 23 from rotating relative to each other, maintaining the child carrier 400 in the unfolded state. In the second unlocked position, the second locking member 24 unlocks the second rotating base 22 and the third rotating base 23. This allows the second rotating base 22 and the third rotating base 23 to rotate relative to each other, allowing the child carrier 400 to be switched to the folded state. In some embodiments, the second rotating base 22 is provided with a locking hole 220, and the third rotating base 23 is provided with a through-hole 230, and the second locking member 24 is slidably disposed within the through-hole 230. The sliding direction of the second locking member 24 is approximately parallel to the second rotation shaft 201. When the lock hole 220 is aligned with the through hole 230, the first end 241 of the second locking member 24 is inserted into the lock hole 220. This locks the second rotating base 22 and the third rotating base 23. On the other hand, when the first end 241 of the second locking member 24 retracts from the lock hole 220, the second rotating base 22 and the third rotating base 23 are unlocked.

[0054] 6 and 12, in some embodiments, the third Unlock14 , a second end of the second locking member 24 is connected to the third unlocking member 25. The third unlocking member 25 is configured to move the second locking member 24 from the second locked position to the second unlocked position. In some embodiments, the third unlocking member 25 includes a rotating portion 251. The rotating portion 251 has a hole 250, and a rotating shaft 2511 is attached to the hole 250. In some embodiments, an edge of the third rotating base 23 has a notch 231, and the rotating shaft 2411 is attached to the notch 231. Thus, the third unlocking member 25 is rotatably connected to the third rotating base 23 via the rotating shaft 2511. Referring to FIG. 14 , a second end of the second locking member 24 is connected to the third unlocking member 25. When the third unlocking member 25 receives an external tensile force, the third unlocking member 25 becomes rotatable about the rotation axis 2511, and moves the second locking member 24 from the second locked position to the second unlocked position. In some embodiments, the third unlocking member 25 is plate-shaped. When the second locking member 24 is in the second locked position, the third unlocking member 25 is configured to come into close contact with the side of the third rotating base 23 that faces the third rotating base 23 and is away from the second rotating base 22.

[0055] 11 to 14 , in some embodiments, the second end of the second locking member 24 is sheet-shaped, and an elongated hole 240 is provided at this second end. A slot 252 is provided on the inner side of the second unlocking member 25 facing the second rotating base 23, and the second end of the second locking member 24 is inserted into the slot 252. A mounting hole 2520 is provided in the wall of the slot 252. A fastener 253 is attached to the mounting hole 2520, and the portion of the fastener 253 positioned in the slot 252 passes through the elongated hole 240. When the third unlocking member 25 is rotated around the rotation axis 2511 by an external tensile force, the fastener 253 and the elongated hole 240 cooperate to move the second locking member 24 from the second locked position to the second unlocked position.

[0056] 12, in some embodiments, the third unlocking member 25 is further provided with a hole 255, and the tensioning member 203 (see FIG. 1) is connected to the third unlocking member 25 through the hole 255. The left and right ends of the tensioning member 204 may be connected to the third unlocking members 25 of the two folding joints 200 on both the left and right sides of the child carrier 400, thereby allowing the second locking members 24 of the two folding joints 200 to be unlocked synchronously. In some embodiments, the tensioning member 203 may be webbing, a piece of plastic, a rope, etc.

[0057] Referring to FIG. 12 , in some embodiments, the folding joint 200 may further include an elastic return member 262. The elastic return member 252 is configured to return the third unlocking member 25, thereby inserting the second locking member 24 into the lock hole 220. In some embodiments, an elongated countersunk hole 254 is provided in the third unlocking member 25, and the countersunk hole 254 has a stepped portion 2541. A fastener 261 may be attached to the third rotating base 23 on a side remote from the second rotating base 22. The fastener 261 passes through the elongated countersunk hole 254 and has a head 2611. The fastener 261 is approximately parallel to the second rotating shaft 201. The elastic return member 262 may be a spring fitted around the fastener 261. Both ends of the spring abut against the head 2611 of the fastener 261 and the stepped portion 2541 of the counterbore 254, respectively. When the third unlocking member 25 is rotated around the pivot shaft 2511 by an external tensile force, the elastic return portion 262 is compressed. When the external tensile force applied to the third unlocking member 25 is released, the elastic return portion 262 returns the third unlocking member 25 to its original position. In some embodiments, to facilitate attachment of the fastener 261, a protruding post 236 may be provided on the side of the third rotating base 23 away from the second rotating base 22. The fastener 261 is fixed to a hole (unnumbered) in the protruding post 236. In some other embodiments, the elastic return member 262 may be implemented by other means. For example, the elastic return member 262 may be a torsion spring fitted around the pivot shaft 2511.

[0058] Referring to FIG. 15 , in some embodiments, the second mounting base 21, the second rotating base 22, and the third rotating base 23 are connected via a planetary gear train, which allows the child carrier 400 to be unfolded or folded more easily and conveniently. More specifically, referring to FIG. 11 , a sun gear 271 is provided on the side of the third rotating base 23 facing the second rotating base 22. Referring to FIG. 17 , one or more planet gears 272 are provided on the side of the second mounting base 21 facing the second rotating base 22, and the second mounting base 21 functions as a planet carrier. Referring to FIG. 19 , an internally toothed ring gear 273 is provided on the side of the second rotating base 22 facing the third rotating base 23. The sun gear 271, the planet gears 272, and the internally toothed ring gear 273 form a planetary gear train. Referring to FIG. 15, when a load is applied to one of the second rotating base 22 and the third rotating base 23 (this load situation also includes a situation in which at least one of the second rotating base 22 and the third rotating base 23 is subjected to gravity alone, with the folding joint 200 being unlocked), the planetary gear train acts to rotate the second mounting base 21, the second rotating base 22, and the third rotating base 23 around the second rotation axis 201, Child carrier The 400 can be folded quickly and easily.

[0059] It should be understood that when the child carrier 400 does not need to be unfolded, a force can be applied to one of the second rotating base 22 and the third rotating base 23. The action of the planetary gear train allows the folding joint 200 to be easily and quickly switched to the unfolded state.

[0060] 16 to 18 , in some embodiments, the second driving member 211 is slidably connected to the second mounting base 21, and the second driving member 211 is connected to the second rotating base 22 via a third driving member 213. When the folding joint 200 is folded, the second mounting base 21 and the second rotating base 22 rotate relative to each other, and the second driving member 213 slides the second driving member 211 relative to the second mounting base 21 along a direction substantially perpendicular to the second rotation axis 201. More specifically, a sliding groove 2130 is provided on the outer side of the second mounting base 21, and the second driving member 211 is slidably disposed within the sliding groove 2130. An elongated hole 2104 is provided in the sliding groove 2130. The third driving member 213 is, for example, a bent connecting rod, and this rod is disposed between the second mounting base 21 and the second rotating base 22. A hole 2131 is provided at a first end of the third driving member 213, and the second driving member 211 has a hole 2110. A rotating shaft 2111 extends through the hole 2110, the elongated hole 2104, and the hole 2131. That is, the first end of the third driving member 213 is rotatably connected to the second driving member 211 via the rotating shaft 2111. A hole 2132 is provided at a second end of the third driving member 213, and the third driving member 213 is rotatably connected to the edge of the second rotating base 22 via a rotating shaft (no reference number in the figure) that passes through the hole 2132.

[0061] 9, when the child carrier 400 is in the unfolded state, the second driving member 211 is located at the first end of the sliding groove 2130. Referring to FIG. 10, when the child carrier 400 is in the folded state, the second driving member 211 is located at the second end of the sliding groove 2130. Referring to FIGS. 3 and 4, the second unlocking member 17 is rotationally driven by the change in position of the second driving member 211. As a result, the first unlocking member 17 is rotated. Anne The locking member 14 is indirectly driven to rotate, thereby unlocking the first locking member 13.

[0062] 12 , in some embodiments, the second rotating base 22 may further be provided with a limiting groove 22110 extending in an arcuate shape, and the limiting groove 22110 is configured to slidably engage with the second locking member 24. More specifically, when the third unlocking member 25 is pulled and the second locking member 24 retreats from the locking hole 220, the second rotating base 22 and the third rotating base 23 first become slightly rotatable relative to each other. Then, the external tensile force acting on the third unlocking member 25 is released, and the third unlocking member 25 returns due to the action of the elastic return member 262, while the second driving member 24 is driven to be inserted into the limiting groove 22110. The limiting groove 22110 can limit the rotation angle range of the second rotating base 22 and the third rotating base 23. In some embodiments, the limiting groove 22110 communicates with the locking hole 220 via a slit. However, it should be understood that the second locking member 24 cannot pass through the limiting groove 22110 and the locking hole 220 from one side to the other via the slit.

[0063] 20 and 21 show another embodiment of a connection joint 100 according to the present disclosure. The connection joint 100 in this embodiment differs from the connection joint 100 described above in that the first drive member 16 is omitted and the first pressing portion 141 of the first unlocking member 14 includes at least one rod portion. The first pressing portion 141 extends through at least one through-hole 1208 in the first mounting base 12 and directly abuts against the first locking member 13. This reduces the number of parts and improves assembly ease.

[0064] 22 and 23 show another embodiment of a child carrier 1000 according to the present disclosure. The child carrier 1000 includes a child carrying device 400 and a support device 300. Referring to FIGS. 24 and 25, the support device 300 has the same structure as the support device 300 described above. The structure of the connection joint 100 of the support device 300 can be referred to above, and will not be repeated here. The child carrier 1000 shown in FIG. 22 differs from the child carrier 1000 shown in FIG. 1 in that the child carrying device 400 is a foldable seat, and the structures of the child carrying device 400 and the folding joint 200 are different from those of the previously described embodiment. Similarly, the configuration of the second drive member 211 is also different from that of the previously described embodiment.

[0065] 24 to 26, the child carrier 400 includes a seat tube 97, a backrest tube 98, a folding joint 200, etc. The same sides of the seat tube 97 and the backrest tube 98 are connected by the folding joint 200. More specifically, the folding joint 200 includes a second mounting base 21, a second rotating base 22, a third rotating base 23, a third locking member 28, and a fourth unlocking member 29. The second mounting base 21, the second rotating base 22, the third rotating base 23, and the fourth unlocking member 29 are rotatably connected to each other, thereby allowing them to rotate relative to each other. The third locking member 28 is configured to lock the second mounting base 21 and the second rotating base 22, and the fourth unlocking member 29 is configured to unlock the third locking member 28.

[0066] Therefore, the second installation base 21 is a first mounting of the connection joint 100 base12, thereby allowing the child carrier 400 to be removably attached to the support apparatus 300. Referring to FIG. 27 , in some embodiments, the second swivel base 22 includes a connecting barrel 2201, and the seat tube 97 is fitted into the connecting barrel 2201 of the second swivel base 22 as the fifth rotating frame. The third swivel base 23 includes a connecting barrel 2301, and the back tube 98 is fitted into the connecting barrel 2301 of the third swivel base 23 as the sixth rotating frame.

[0067] 28 to 30 illustrate the structure of the child carrier 400 and folding joint 200 shown in FIG. 22. A second rotation shaft 201 extends through a central hole 2100 of the second mounting base 21, a central hole 2200 of the second rotating base 22, a central hole 2300 of the third rotating base 23, and a central hole 2900 of the third unlocking member 29, in that order. The second mounting base 21, the second rotating base 22, the third rotating base 23, and the fourth unlocking member 29 are rotatably connected to one another via the second rotation shaft 201, thereby allowing them to rotate relative to one another. The second rotating base 22 is sandwiched between the second mounting base 21 and the third rotating base 23. The third rotating base 23 is sandwiched between the second rotating base 22 and the fourth unlocking member 29.

[0068] As in the previously described embodiment, the second mounting base 21 has a through hole 2108, a through hole 2109, and a lock slot 210 on the side facing the first mounting base 12. Referring to FIGS. 28 and 29, a lock member 2101, an unlock member 2102, and an elastic return member 2103 are attached to the second mounting base 21. The elastic return member 2103 causes the lock member 2101 to protrude from the through hole 2108. The unlock member 2102 extends into the second mounting base 12 through the through hole 2109 and is operably connected to the lock member 2101. This drives the lock member 2101 to retract into the through hole 2108. When the second mounting base 21 is attached to the first mounting base 12, the lock slot 210 of the second mounting base 21 engages with the engagement tab 121 of the first mounting base 12, and the lock member 2101 is inserted into the lock hole 120. When the second mounting base 21 needs to be disassembled, the unlocking member 2102 is pressed, and the locking member 2101 is driven by the unlocking member 2102 to retract from the locking hole 120. This allows the locking slot 210 of the second mounting base 21 to disengage from the engaging tab 121 of the first mounting base 12.

[0069] Referring to FIG. 28 , in some embodiments, a chamber 20 is formed between the second mounting base 21 and the second rotating base 22, and a third locking member 28 is housed in the chamber 20. The third locking member 28 may be a gear having a central hole 2800 (see FIG. 30 ) and may be fitted onto the second rotating shaft 201. The third locking member 28 is arranged axially movably within the chamber 20 and has a third locked position and a third unlocked position. When the third locking member 28 is in the third locked position, the third locking member 28 simultaneously engages with the second mounting base 21 and the second rotating base 22, thereby locking the relative positions of the second mounting base 21 and the second rotating base 22. When the third locking member 28 is in the third unlocked position, the third locking member 28 moves into the second mounting base 21 along the second rotating shaft 201 and disengages from the second rotating base 22. The second mounting base 21 and the second rotating base 22 are then rotatable relative to each other. In some embodiments, a resilient return member 26 is mounted within the chamber 20 and configured to move the third locking member 28 to the third locking position. The resilient return member 26 is a spring and is sandwiched between the second mounting base 21 and the third locking member 28.

[0070] 28 and 29 , in some embodiments, at least one through-hole 2105 is provided in the wall between the lock slot 210 and the chamber 20. The second drive member 211 includes at least one protruding post and is integrally formed with or attached to the third lock member 28. The at least one protruding post of the second drive member 211 is slidably engaged with the at least one through-hole 2105, thereby slidably connecting the second drive member 211 to the second mounting base 21. It should be understood that the sliding direction of the second drive member 211 is approximately parallel to the second pivot shaft 201. When the third lock member 28 switches between the third locked position and the third unlocked position, the second drive member 211 can advance or retreat relative to the through-hole 2105.

[0071] 24, when the third locking member 28 is in the third locked position, the second driving member 211 does not protrude into the through hole 2105, the second driving member 211 does not act on the first unlocking member 14 and the second unlocking member 17 of the connection joint 100, and the first locking member 13 is in the first locked position. Referring to FIG. 25, when the third locking member 28 is in the third unlocked position, the second driving member 211 protrudes into the through hole 2105, functions as a protruding pillar of the second driving member 211, and directly presses the first abutment portion 142 of the first unlocking member 14. As a result, while the first unlocking member 14 rotates around the first shaft 1211, it drives the first locking member 13 directly or indirectly (i.e., without or via the first driving member 16) to move the first locking member 13 from the first locked position to the first unlocked position.

[0072] 29 and 30, the third locking member 28 further includes at least one protruding post 281. At least one through hole 2107 is provided in the wall between the lock slot 210 and the chamber 20. The protruding post 281 is slidably engaged with the through hole 2107. The protruding posts 281 and the protruding posts of the second driving member 211 are evenly arranged in the circumferential direction of the third locking member 28, thereby cooperatively guiding the axial movement of the second driving member 211. Referring to FIG. 25, the protruding posts of the second driving member 211 are arranged away from the first shaft 1211, and the protruding post 281 is arranged close to the first shaft 1211. Therefore, the axial movement of the second driving member 211 presses the first abutment portion 142 of the first unlocking member 14, causing the first unlocking member 14 to rotate around the first shaft 1211, thereby unlocking the first locking member 13. 7 and 25, in some embodiments, the first abutment portion 142 is plate-shaped and includes a recess 1420 corresponding to the protruding post 281. The recess 1420 provides a movement space for the protruding post 281, thereby preventing the protruding post 281 from interfering with the rotation of the first unlocking member 14 during a normal unlocking operation.

[0073] 28 to 30 , in some embodiments, a first movable member 221 is mounted in the chamber 20. The first movable member 221 is fitted onto the second rotating shaft 201 via a central hole 2210 thereof, and the first movable member 221 is disposed between the third locking member 28 and the second rotating base 22. At least one abutment pillar 222 is provided on the first movable member 221, and the abutment pillar 222 extends in a direction away from the third locking member 28. The second rotating base 22 is provided with at least one through hole 2203, and the abutment pillar 222 is slidably engaged with the through hole 2203.

[0074] 28 to 30 , in some embodiments, a chamber 30 is formed between the third rotating base 23 and the fourth unlocking member 29. A second movable member 235 is mounted in the chamber 30. The second movable member 235 is fitted onto the second rotating shaft 201 via its central hole 2350. The second movable member 235 includes at least one pressing post 2351. The third rotating base 23 has at least one through-hole 2303, and the at least one pressing post 2351 is slidably engaged with the at least one through-hole 2303. The at least one pressing post 2351 is configured to press the at least one abutting post 222, thereby causing the first movable member 221 to press the third locking member 28 and move the third locking member 28 from the third locked position to the third unlocked position. In some embodiments, an elastic return member 232 may be provided in the chamber 30. The elastic return member 232 is configured to move the second movable member 235 in a direction away from the first movable member 221. The elastic return member 232 is a spring, and is sandwiched between the second movable member 235 and the third rotating ace 23.

[0075] 29 and 30 , in some embodiments, the fourth unlocking member 29 rotates relative to the third rotating base 23, causing the second movable member 235 to move in the axial direction. This allows the pressing post 2351 of the second movable member 235 to press the abutting post 222 of the first movable member 221. In some embodiments, at least one first end surface tooth 291 is provided on the fourth unlocking member 29, and at least one second end surface tooth 2352 is provided on the second movable member 235. When the fourth unlocking member 29 rotates relative to the third rotating base 23, the protrusion of the first end surface tooth 291 and the protrusion of the second end surface tooth 2352 abut against each other, causing the second movable member 235 to move in the axial direction, and the pressing post 2351 of the second movable member 235 to press the abutting post 222 of the first movable member 221. This causes the first movable member 21 to move, and the third locking member 28 to move from the third locked position to the third unlocked position. If the protrusions of the first end teeth 291 and the second end teeth 2352 are misaligned with each other, the second movable member 235 moves in a direction away from the first movable part 231 and is returned to its original position by the action of the elastic return member 232. No. 2 The end surface teeth 2352 and the first end surface teeth 291 have a concave-convex fit.

[0076] 29 and 30 , in some embodiments, the third rotating member 23 and the fourth unlocking member 29 are provided with a rotation limiting mechanism that limits the relative rotation range therebetween. For example, an arc-shaped groove 2305 may be provided on the third rotating member 23, and an arc-shaped protrusion 295 may be provided on the fourth unlocking member 29. The arc-shaped protrusion 295 is disposed within the arc-shaped groove 2305. Both ends of the arc-shaped protrusion 295 selectively contact both ends of the arc-shaped groove 2305. This limits the relative rotation range between the third rotating member 23 and the fourth unlocking member 29. In some embodiments, the positions of the arc-shaped groove 2305 and the arc-shaped protrusion 295 relative to the third rotating member 23 and the fourth unlocking member 29 are interchangeable.

[0077] 29 and 30, in some embodiments, the fourth unlocking member 29 may further include a hole 292 through which a tensioning member 204 (see FIG. 22) is connected to the fourth unlocking member 29. When the tensioning member 204 is pulled, the fourth unlocking member 29 is rotatable relative to the third rotating base 23. Both left and right ends of the tensioning member 204 are connectable to the fourth unlocking members 29 of the two folding joints 200 provided on the left and right sides of the child transport device 400. This allows the third locking members 28 of the two folding joints 200 to be unlocked synchronously. In some embodiments, the tensioning member 204 may be webbing, a plastic piece, a rope, or the like.

[0078] 27 and 28, the folding operation of the child carrier 1000 will be briefly described. When it is necessary to fold the child carrier 1000, the backrest tube 98 is first pressed forward and downward. At this time, the first end surface teeth 291 and the second end surface teeth 2352 are engaged with each other, and the fourth unlocking member 29 rotates together with the third rotating base 23. When the backrest tube 98 is folded to a predetermined position, the pressing post 2351 of the second movable member 235 aligns with the abutting post 222 of the first movable member 221. Next, a pulling force is applied to the pulling member 204, causing the fourth unlocking member 29 to rotate relative to the third rotating base 23. When the protrusions of the first end teeth 291 and the second end teeth 2352 abut against each other, the second movable member 235 moves axially, and the pressing post 2351 of the second movable member 235 presses the abutment post 222 of the first movable member 221. The first movable member 221 moves axially. The axial movement of the first movable member 221 drives the third locking member 28 to move to the third unlocked position. The second rotating base 22 and the second mounting base 21 become rotatable relative to each other, allowing the child carrier 400 to be further folded. In addition, when the third locking member 28 moves to the third unlocked position, the second driving member 211 provided on the third locking member 28 directly presses the first unlocking member 14. Referring to FIG. 25 and the above description, the first unlocking member 14 is pressed by the second driving member 211 and rotates around the first shaft 1211. As a result, the first locking member 13 is driven directly or indirectly to move to the first unlock position, at which point the support device 300 becomes foldable.

[0079] When the support device 300 is folded into a predetermined position, the tension applied to the tension member 204 is released. The second movable member 235 is returned to its original position by the action of the elastic return member 233 and the elastic return member 26, and the first movable member 221 and the third locking member 28 are also returned to their original positions. This causes the first end surface teeth 291 and the second end surface teeth 2352 to engage with each other, and the third locking member 28 moves to the third locking position. The third locking member 28 retracts the second driving member 211 into the through-hole 2105 and no longer presses against the first unlocking member 14. The first locking member 13 returns to its first locking position by the action of the first elastic return member 15, and the first locking member 13 returns the first unlocking member 14.

[0080] When child carrier 1000 is in the folded position, a pulling force is applied to tension member 204, causing third locking member 28 and first locking member 13 to move to their unlocked positions, thereby allowing support apparatus 300 and child carrying apparatus 400 to be easily unfolded again, thereby unfolding child carrier 1000.

[0081] In short, according to the support device 300 provided by the embodiment of the present disclosure, when the connection joint 100 is provided with the first unlocking member 14 and the second unlocking member 17, the connection joint 100 can be detachably connected to the folding joint 200 of a different type of child carrier device 400. When the child carrier device 400 is not detached from the support device 300, the first locking member 13 of the connection joint 100 can be indirectly unlocked via the second drive member 211 of the folding joint 200 during the folding operation of the child carrier device 400, thereby allowing the support device 300 to be folded.

[0082] The above embodiments do not limit the protection scope of the technical solutions. Various modifications, equivalent replacements, and improvements made within the spirit and principle of the above embodiments shall be included in the protection scope of the technical solutions.

[0083] The above description is merely a specific embodiment of the present disclosure and is not intended to limit the scope of protection of the present disclosure. Any modifications or replacements that can be easily thought up by a person skilled in the art within the technical scope disclosed in the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. a first rotating base; a first mounting base rotatably connected to the first rotating base and configured to removably mount a second mounting base of a child transport device; a first locking member attached between the first rotating base and the first mounting base, the first locking member having a first locking position where the first rotating base and the first mounting base are locked and a first unlocking position where the first rotating base and the first mounting base are unlocked; A first unlocking member; A second unlocking member; Equipped with the first unlocking member and the second unlocking member are attached to the first mounting base, the first unlocking member or the second unlocking member is operably connected to the first locking member; the first unlocking member or the second unlocking member is configured to move the first locking member from the first lock position to the first unlocking position when driven by a second driving member of the second mounting base, and the first rotating base is rotatable relative to the first mounting base; Connection joint.

2. the first rotating base is disposed on a first side of the first mounting base; the first locking member is disposed on a second side of the first mounting base; The second side of the first mounting base is configured to be connected to the second mounting base. The connection joint according to claim 1 .

3. a mounting recess is provided on the end surface of the first mounting base on the second side; The first unlocking member is disposed in the mounting recess. The connection joint according to claim 2 .

4. a chamber is formed between the first rotating base and the first mounting base, and the first locking member is a first locking gear that is axially movable within the chamber; the connection joint further comprising a first elastic return member mounted within the chamber, the first elastic return member configured to drive the first locking member to the first locking position. The connection joint according to claim 1 .

5. the first unlocking member is rotatably connected to the first mounting base via the first shaft, and the first unlocking member includes a first pressing portion configured to press the first locking member; The first rotating base is rotatably connected to the first mounting base via a first rotation axis, and the first rotation axis is approximately perpendicular to the first shaft. The connection joint according to claim 1 .

6. the first unlocking member includes a first abutment portion configured to be pressed by the second driving member; A connection joint according to claim 5.

7. a first drive member sandwiched between the first unlocking member and the first locking member; The first unlocking member drives the first locking member via the first driving member. The connection joint according to claim 1 .

8. the second unlocking member is operably connected to the first unlocking member; The second unlocking member is configured to be driven by the second unlocking member and to drive the first unlocking member to unlock the first locking member. The connection joint according to claim 1 .

9. the first unlocking member is rotatably connected to the first mounting base via a first shaft; the second unlocking member is rotatably connected to the first mounting base via a second shaft, the second shaft being substantially parallel to the first shaft; a first end of the second unlocking member engaged with the first unlocking member; a second end of the second unlocking member including a second abutment configured to be pressed by the second drive member; A connection joint according to claim 8.

10. When the second unlocking member is not receiving an external driving force, the second abutment portion protrudes outward from the first mounting base. A connection joint according to claim 9.

11. the second abutment portion has an inclined abutment surface, and the second drive member has an inclined pressing surface configured to abut against the inclined abutment surface; A connection joint according to claim 9.

12. the first unlocking member includes a first connecting portion fitted onto the first shaft; the second unlocking member includes a second connecting portion fitted onto the second shaft; The first connecting portion is engaged with the second connecting portion via a tooth structure. A connection joint according to claim 9.

13. Further provided with a fixing bracket, the first shaft and the second shaft are connected to the fixed bracket; the first rotating base is disposed on a first side of the first mounting base; a mounting recess is provided on a second end surface of the first mounting base, The fixing bracket is attached to the mounting recess. A connection joint according to claim 9.

14. A first rotating frame, a second rotating frame, and a connection joint according to any one of claims 1 to 13, The first rotating frame is connected to the first rotating base, and the second rotating frame is connected to the second rotating base. Support device for child carriers.

15. A child carrying device and a support device according to claim 14, the child carrier includes the second mounting base; Child carrier.

16. the child carrier comprises a folding joint; the folding joint includes the second mounting base; the folding joint has a second pivot axis; the second drive member is slidably connected to the second mounting base; a sliding direction of the second driving member is substantially perpendicular to the second rotation axis, When the folding joint is folded, the second drive member slides relative to the second mounting base.

16. The child carrier of claim 15.

17. the folding joint comprises a second rotating base, a third rotating base, a second locking member, and a third locking member; the second mounting base, the second rotating base, and the third rotating base are rotatably connected to one another via the second rotating shaft; the second locking member has a second locking position where the second rotating base and the third rotating base are locked, and a second unlocking position where the second rotating base and the third rotating base are unlocked, the third locking member is configured to move the second locking member from the second locked position to the second unlocked position, so that the second rotating base is rotatable relative to the third rotating base; 17. The child carrier of claim 16.

18. the folding joint further comprises a third drive member; the second driving member is connected to the second rotating base via the third driving member; When the second mounting base and the second rotating base rotate relative to each other, the third driving member causes the second driving member to slide relative to the second mounting base.

18. The child carrier of claim 17.

19. the child carrier further comprises a folding joint; the folding joint includes the second mounting base; the folding joint has a second pivot axis; the second drive member is slidably connected to the second mounting base; a sliding direction of the second driving member is substantially parallel to the second rotation axis, When the folding joint is folded, the second drive member slides relative to the second mounting base.

16. The child carrier of claim 15.

20. the folding joint further comprises a second rotating base, a third rotating base, a third locking member, and a fourth unlocking member; the second mounting base, the second rotating base, the third rotating base, and the fourth unlocking member are rotatably connected to one another via the second rotating shaft; the third locking member is attached between the second mounting base and the second rotating base, the third locking member has a third locking position where the second mounting base and the second rotating base are locked, and a third unlocking position where the second mounting base and the second rotating base are unlocked, the fourth unlocking member is configured to move the third locking member from the third locking position to the third unlocking position, so that the second mounting base is movable relative to the second rotating base; the second drive member is integrally formed with or attached to the third locking member; 20. The child carrier of claim 19.

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