Bracket connection structure, and child carrier

Abstract

This application relates to a bracket connection structure and a child carrier. The bracket connection structure includes a bracket connection assembly. The bracket connection assembly includes a connection base, at least one swivel arm, and a locking member. At least one swivel arm is pivotably connected to the connection base. The locking member is movably positioned on the connection base and restricts or allows the rotation of at least one swivel arm relative to the connection base.

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims priority to Chinese Patent Application No. 2023115616284 filed on November 21, 2023, and Chinese Patent Application No. 2023110488754 filed on August 18, 2023, the contents of which are hereby incorporated by reference in their entirety. This application relates to the field of child carrier technology, and particularly to a bracket connection structure and a child carrier having the bracket connection structure.

Background Art

[0002] A baby bed is a practical tool for supporting infants and young children. To meet customers' requirements for foldability and ease of storage, baby beds with foldable armrests have emerged. Foldable baby beds have the advantage of being easy to disassemble, fold, and store. However, the structures and folding methods of conventional baby beds are relatively complex, resulting in high manufacturing costs on the one hand, and requiring a lot of time and labor when disassembling and folding the baby bed on the other hand.

Summary of the Invention

[0003] According to various embodiments of the present application, the present application provides a bracket connection assembly, a bracket connection structure, and a child carrier.

[0004] According to one aspect of the present application, a bracket connection structure is provided. The bracket connection structure includes a bracket connection assembly. The bracket connection assembly includes a connection base, at least one pivot arm, and a locking member. At least one pivot arm is pivotally connected to the connection base. The locking member is movably disposed on the connection base and restricts or allows the rotation of at least one pivot arm with respect to the connection base.

[0005] In one embodiment, the bracket connection assembly includes a movable connection assembly. The movable connection assembly includes a pivot base, at least one pair of pivot arms, and at least one movable locking member. The pivot base functions as a connection base. The at least one pair of pivot arms functions as at least one swivel arm. Each pair of pivot arms includes a first pivot arm and a second pivot arm that are pivotably connected to the same side of the pivot base. The first and second pivot arms are spaced apart from each other. At least one movable locking member is movably positioned on the pivot base and is switchable between a movable unlock position and a movable lock position. When the movable locking member is in the movable lock position, it locks the first and second pivot arms simultaneously, restricting the rotation of the first and second pivot arms. On the other hand, when the movable locking member is in the movable unlock position, the first and second pivot arms are rotatable relative to the pivot base.

[0006] In one embodiment, the movable locking member includes a first surface and a second surface that are opposite to each other. When the movable locking member is in the movable lock position, the first pivot arm is locked by the first surface, and the second pivot arm is locked by the second surface. When the movable locking member is in the movable unlock position, the first pivot arm is offset from the first surface, and the second pivot arm is offset from the second surface.

[0007] In one embodiment, a sliding groove is provided on one of the movable locking member and the pivot base, and a connecting projection or connecting pin is provided on the other of the movable locking member and the pivot base. The connecting projection or connecting pin is inserted and fitted into the sliding groove and is movable along the sliding groove.

[0008] In one embodiment, the movable locking member is provided with a guide surface configured to guide the pivot of at least one of the first pivot arm and the second pivot arm.

[0009] In one embodiment, two sets of pivot arms are provided. The two sets of pivot arms are positioned on either side of the pivot base. Two movement locking members are provided. The two movement locking members cooperate with the two sets of pivot arms to restrict or allow the rotation of the two sets of pivot arms relative to the pivot base.

[0010] In one embodiment, the movable connection assembly further includes a movable reset member positioned between two movable lock members. The movable reset member is configured to bias the two movable lock members so that they tend to move toward the movable lock position.

[0011] In one embodiment, at least one of the two movable locking members is provided with a receiving groove configured to accommodate at least partially a movable resetting member.

[0012] In one embodiment, the movable connection assembly further includes a connecting member. The connecting member is movably positioned on a pivot base. One of the connecting member and the movable locking member is provided with a drive groove, the direction of which the drive groove extends is at an angle with respect to the direction of movement of the movable locking member and at an angle with respect to the direction of movement of the connecting member. The other of the connecting member and the movable locking member is provided with a drive member. The drive member is slidably fitted into the drive groove and drives the movable locking member to switch between a movable lock position and a movable unlock position.

[0013] In one embodiment, one connecting member is provided, and two movable locking members are provided. The two movable locking members are passively connected to the connecting member. The connecting member is provided with an avoidance groove. The connecting member is further provided with a spacing portion. The spacing portion divides the avoidance groove into a first avoidance groove and a second avoidance groove. When the two movable locking members are in the movable lock release position, the first avoidance groove accommodates at least partially one of the two movable locking members, and the second avoidance groove accommodates at least partially the other of the two movable locking members.

[0014] In one embodiment, the bracket connection structure includes two movable connection assemblies. A movable locking member of one of the two movable connection assemblies is connected to a movable locking member of the other movable connection assembly via a connecting member, so that when one of the two movable connection assemblies is operated, the other movable connection assembly is driven to switch between a locked state and an unlocked state.

[0015] In one embodiment, each of the movable connection assemblies includes two movable locking members located on opposite sides of each other. The two movable locking members include a first movable locking member and a second movable locking member. The two movable connection assemblies include a first movable assembly and a second movable assembly. The second movable assembly includes a first movable locking member relatively close to the first movable assembly and a second movable locking member relatively far from the first movable assembly. The first movable assembly includes a first movable locking member relatively far from the second movable assembly and a second movable locking member relatively close to the second movable assembly. One end of the connecting member is connected to the second movable locking member of the first movable assembly, and the other end of the connecting member is connected to the second movable locking member of the second movable assembly.

[0016] In one embodiment, the connecting member includes a tension rope and a first latch end and a second latch end positioned at each end of the tension rope. Each of the movable locking members has an engagement hole configured to allow the tension rope to pass through. The first latch end and the second latch end engage with the corresponding engagement hole, respectively.

[0017] In one embodiment, each of the movable connection assemblies includes two movable locking members. The two movable locking members include a first movable locking member and a second movable locking member. The two movable connection assemblies include a first movable assembly and a second movable assembly. The first latch end engages with the engagement hole of the second movable locking member of the first movable assembly, and the second latch end engages with the engagement hole of the second movable locking member of the second movable assembly.

[0018] In one embodiment, each engagement hole is provided with a contact portion. The first latch end and the second latch end are configured to contact the corresponding contact portion in the engagement hole.

[0019] In one embodiment, one of the two movable connection assemblies is further provided with a mounting through-hole through which a first latch end passes, and the other of the two movable connection assemblies is further provided with a mounting through-hole through which a second latch end passes. Each mounting through-hole communicates with an engagement hole, allowing the tension rope to move between the mounting through-hole and the engagement hole.

[0020] In one embodiment, the connecting member further includes a sheath that covers the outside of the tension rope. One end of the sheath is provided with a first connecting end configured to allow the tension rope to pass through, and the other end of the sheath is provided with a second connecting end configured to allow the tension rope to pass through. Two movable connecting assemblies include a first movable assembly and a second movable assembly. The first connecting end is restricted by the pivot base of the first movable assembly, and the second connecting end is restricted by the pivot base of the second movable assembly.

[0021] In one embodiment, the two movable connection assemblies include a first movable assembly and a second movable assembly. The connecting member of the first movable assembly is provided with an operable operating part.

[0022] In one embodiment, the bracket connection assembly further includes a swivel connection assembly and a connecting member. The swivel connection assembly includes a swivel base, at least one first swivel arm, and at least one swivel locking member. The swivel base functions as a connection base. The at least one first swivel arm functions as a pivot arm. The at least one first swivel arm is pivotably connected to the swivel base. The at least one swivel locking member is rotatably positioned on the swivel base and is switchable between a swivel unlocked position and a swivel locked position. When the swivel locking member is in the swivel unlocked position, the first swivel arm is rotatable relative to the swivel base, and when the swivel locking member is in the swivel locked position, the rotation of the first swivel arm relative to the swivel base is restricted. The movable connection assembly can be driven via the connecting member to switch the swivel connection assembly from a locked state to an unlocked state, or the swivel connection assembly can be driven via the connecting member to switch the movable connection assembly from a locked state to an unlocked state.

[0023] In one embodiment, one of the first rotating arm and the rotating locking member is provided with an engaging recess, and the other of the first rotating arm and the rotating locking member is provided with an engaging projection. When the rotating locking member is in the rotating lock position, the engaging projection engages with the engaging recess, and when the rotating locking member is in the rotating unlock position, the engaging projection disengages from the engaging recess.

[0024] In one embodiment, an engaging projection is formed at one end of the first rotating arm, and the rotating locking member is provided with an engaging recess facing the first rotating arm.

[0025] In one embodiment, two first rotating arms are provided. The ends of the two first rotating arms facing each other are pivotally connected to a rotating base. Two rotating locking members are provided. The two rotating locking members can each engage with a first rotating arm. The two rotating locking members mesh with each other, thereby allowing the two rotating locking members to synchronously switch between a rotation locking position and a rotation unlocking position.

[0026] In one embodiment, the rotary connection assembly further includes a rotary reset member. The rotary reset member biases the rotary locking member so that the rotary locking member has a tendency to rotate towards the rotation locking position.

[0027] In one embodiment, one end of a connecting member is connected to a moving locking member of a moving connection assembly, and the other end of the connecting member is connected to a rotating locking member. When the moving locking member moves from the moving locking position to the moving unlocking position, the rotating locking member is driven by the connecting member and switches from the rotation locking position to the rotation unlocking position.

[0028] In one embodiment, the rotary connection assembly includes two rotary locking members that mesh with each other. The two rotary locking members include a first rotary locking member relatively close to the moving connection assembly and a second rotary locking member relatively far from the moving connection assembly. The moving connection assembly includes two moving locking members. The two moving locking members include a first moving locking member relatively far from the rotary connection assembly and a second moving locking member relatively close to the rotary connection assembly. One end of the connecting member is connected to the first rotary locking member, and the other end of the connecting member is connected to the second moving locking member.

[0029] In one embodiment, the connecting member includes a tension rope, a first latch end and a second latch end connected to both ends of the tension rope. The second moving lock member is provided with an engaging hole, and the first rotating lock member is provided with an engaging groove. The first latch end engages with the engaging hole of the second moving lock member, and the second latch end engages with the engaging groove of the first rotating lock member.

[0030] In one embodiment, the engaging groove includes a first groove portion configured to engage with the second latch end and a second groove portion configured to allow the passage of the tension rope. The first groove portion communicates with the second groove portion. The extending direction of the first groove portion forms an angle with respect to the extending direction of the second groove portion.

[0031] In one embodiment, the connecting member further includes a sheath covering the outside of the tension rope. A first connection end configured to allow the passage of the tension rope is provided at one end of the sheath, and a second connection end configured to allow the passage of the tension rope is provided at the other end of the sheath. The first connection end is restricted by a rotating base, and the second connection end is restricted by a pivoting base.

[0032] In one embodiment, a connection frame is provided on the rotating base. The first connection end is connected to the connection frame. A fixed frame is provided on the pivoting base, and the second connection end is connected to the fixed frame.

[0033] In one embodiment, the bracket connection assembly includes a rotary connection assembly. The rotary connection assembly includes a rotary base, at least one first rotary arm, and at least one rotary locking member. The rotary base functions as a connection base. The at least one first rotary arm functions as a swivel arm. The at least one first rotary arm is pivotably connected to the rotary base. The at least one rotary locking member is rotatably positioned on the rotary base and is switchable between a rotary unlocked position and a rotary locked position. When the rotary locking member is in the rotary unlocked position, the first rotary arm is rotatable relative to the rotary base, and when the rotary locking member is in the rotary locked position, the first rotary arm is restricted from rotating relative to the rotary base.

[0034] In one embodiment, one of the first rotating arm and the rotating locking member is provided with an engaging recess, and the other of the first rotating arm and the rotating locking member is provided with an engaging projection. When the rotating locking member is in the rotating lock position, the engaging projection engages with the engaging recess, and when the rotating locking member is in the rotating unlock position, the engaging projection disengages from the engaging recess.

[0035] In one embodiment, an engaging projection is formed at one end of the first rotating arm, and the rotating locking member is provided with an engaging recess facing the first rotating arm.

[0036] In one embodiment, the rotary connection assembly is provided with two first rotary arms. One end of each of the two opposing first rotary arms is pivotally connected to a rotary base.

[0037] In one embodiment, two rotation locking members are provided. Each of the two rotation locking members is engageable with the first rotation arm. The two rotation locking members interlock with each other, thereby allowing them to switch synchronously between a rotation lock position and a rotation unlock position.

[0038] In one embodiment, the rotary connection assembly further includes a rotary reset member. The rotary reset member biases the rotary locking member so that it tends to rotate toward the rotary locking position.

[0039] In one embodiment, the rotary connection assembly further includes at least one second rotary arm, which is pivotably connected to a rotary base.

[0040] In one embodiment, the rotary connection assembly further includes an operating member. The rotary base of the rotary connection assembly is provided with a housing groove, and at least a portion of the rotary locking member is housed in the housing groove. A through hole is provided in the side wall of the housing groove. The operating member is connected to the rotary locking member via the through hole and drives the rotary locking member to switch between a rotary lock position and a rotary unlock position.

[0041] In one embodiment, the rotation locking member is provided with a pivot projection. The pivot projection is provided with a recess. The operating member is provided with a pivot recess configured to accommodate the pivot projection. The pivot recess is provided with a protrusion configured to engage with the recess.

[0042] In one embodiment, two rotary connection assemblies are provided. The two rotary connection assemblies are passively connected via a connecting member. When one rotary connection assembly is operated, the other rotary connection assembly is driven by the connecting member to switch between a locked state and an unlocked state.

[0043] In one embodiment, each of the rotary connection assemblies includes two rotary locking members. The two rotary locking members include a first rotary locking member and a second rotary locking member. The two rotary connection assemblies include a first rotary assembly and a second rotary assembly. The second rotary assembly includes a first rotary locking member relatively close to the first rotary assembly and a second rotary locking member relatively far from the first rotary assembly. The first rotary assembly includes a first rotary locking member relatively far from the second rotary assembly and a second rotary locking member relatively close to the second rotary assembly. One end of the connecting member is connected to the first rotary locking member of the first rotary assembly, and the other end of the connecting member is connected to the first rotary locking member of the second rotary assembly.

[0044] In one embodiment, each of the rotary connection assemblies includes two rotary locking members. The two rotary locking members include a first rotary locking member and a second rotary locking member. At least the first rotary locking member is provided with an engagement groove. The two rotary connection assemblies include a first rotary assembly and a second rotary assembly. The connecting member includes a tension rope and a first latch end and a second latch end, respectively, located at both ends of the tension rope. The first latch end engages with the engagement groove of the first rotary locking member of the first rotary assembly, and the second latch end engages with the engagement groove of the first rotary locking member of the second rotary assembly.

[0045] In one embodiment, the engagement groove includes a first groove and a second groove configured to allow the passage of a tension rope. The first groove communicates with the second groove. The direction of extension of the first groove is at an angle to the direction of extension of the second groove. A first latch end or a second latch end is configured to engage with the first groove.

[0046] In one embodiment, the second rotation locking member of the first rotation assembly is provided with a retaining groove, and both ends of the retaining groove are open ends that allow a tension rope to pass through.

[0047] In one embodiment, the connecting member further includes a sheath fitted over the outside of the tension rope. One end of the sheath is provided with a first connecting end configured to allow the tension rope to pass through and to abut against a first latch end, and the other end of the sheath is provided with a second connecting end configured to allow the tension rope to pass through and to abut against a second latch end. The first connecting end is restricted by the rotating base of a first rotating assembly, and the second connecting end is restricted by the rotating base of a second rotating assembly.

[0048] In one embodiment, each of the two rotating bases is provided with a connecting frame, and the first and second connecting ends are restricted by the corresponding connecting frames, respectively.

[0049] In one embodiment, the two rotary connection assemblies include a first rotary assembly and a second rotary assembly. The first rotary assembly further includes an operating member that is passively connected to a rotary locking member. The operating member is configured to drive the rotary locking member of the first rotary assembly to rotate, causing the rotary locking member of the first rotary assembly to switch between a rotary locked position and a rotary unlocked position.

[0050] In one embodiment, the rotating base of the first rotating assembly has a housing groove. At least a portion of the rotating locking member of the first rotating assembly is housed in the housing groove. Through holes are provided in the side walls of the housing groove, and the operating member is connected to the rotating locking member through the through holes.

[0051] In one embodiment, the rotation locking member of the first rotation assembly is provided with a pivot projection. The pivot projection is provided with a recess. The operating member is provided with a pivot recess configured to accommodate the pivot projection. The pivot recess is provided with a protrusion configured to engage with the recess.

[0052] In one embodiment, the rotation locking member includes a first rotation locking member and a second rotation locking member. The operating member is passively connected to the first rotation locking member of the first rotation assembly.

[0053] In one embodiment, the bracket connection structure comprises a plurality of bracket connection assemblies, and the bracket connection structure further includes a corner connection member, a support leg, and a plurality of connecting rods. The plurality of bracket connection assemblies are connected to the corner connection member. The support leg is connected to the corner connection member, and the support leg is provided with a sliding structure. The sliding structure includes a sliding member that is slidably positioned on the support leg. At least one swivel arm of each bracket connection assembly is connected to the sliding structure via a corresponding connecting rod, so that when at least one swivel arm of one bracket connection assembly rotates, at least one swivel arm of the other bracket connection assembly is driven to rotate via the connecting rod and the sliding structure.

[0054] In one embodiment, the first rotating arm includes a main rod and an engaging rod. The engaging rod is connected to the end of the main rod adjacent to the rotation locking member and is movable between an extended position and a retracted position relative to the main rod. The first rotating arm has an extended position and a folded position. In the process of switching the first rotating arm from the folded position to the extended position, the rotation locking member presses against the engaging rod, thereby moving the engaging rod from the extended position to the retracted position.

[0055] In one embodiment, the rotation locking member is provided with an engagement recess, and the end of the engagement rod away from the main rod functions as an engagement projection. When the first rotation arm is in the folded position, the engagement projection is separated from the engagement recess, and the engagement rod is in the extended position. When the first rotation arm switches from the folded position to the unfolded position, the engagement projection faces the engagement recess, and the engagement rod moves from the retracted position to the extended position, causing the engagement projection to engage with the engagement recess.

[0056] In one embodiment, an insertion space is provided in one of the main rod and the engaging rod, and the other of the main rod and the engaging rod is inserted into the insertion space, with at least a portion of it being confined to the insertion space.

[0057] In one embodiment, the main rod is provided with an insertion space and is pivotably connected to a rotating base via a pin shaft. The engaging rod is inserted into the insertion space and is provided with a guide groove. The direction of extension of the guide groove is parallel to the direction of extension of the insertion space. The pin shaft extends through the guide groove and restricts the engaging rod from separating from the main rod.

[0058] In one embodiment, the end of the engaging rod away from the engaging projection is provided with a first insertion end and a second insertion end. The first and second insertion ends surround an entry opening that communicates with the guide groove. At least one of the first and second insertion ends is provided with a limiting projection. The engaging rod allows the pin shaft to enter the guide groove through the entry opening and restricts the guide groove from separating from the pin shaft by bringing the limiting projection into contact with the pin shaft.

[0059] In one embodiment, the first rotating arm is further provided with an extendable reset member. One end of the extendable reset member abuts against the pin shaft, and the other end abuts against the engagement rod. The extendable reset member biases the engagement rod to move toward the extended position.

[0060] In one embodiment, the engaging rod is provided with a housing space, and the telescopic reset member is housed within the housing space and abuts against the bottom wall of the housing space.

[0061] In one embodiment, at least one swivel arm includes a first swivel arm. The first swivel arm is pivotably connected to a connecting base via a pin shaft and is switchable between an extended position and a folded position. The bracket connecting assembly is further provided with an auxiliary reset member. One end of the auxiliary reset member is connected to the connecting base, and the other end of the auxiliary reset member abuts against the first swivel arm. The auxiliary reset member biases the first swivel arm to rotate toward the extended position.

[0062] In one embodiment, the auxiliary reset member includes two spring bodies, two first ends, and a second end connected to the two spring bodies. The first swivel arm is pivotably connected to a connecting base via a pin shaft. The two spring bodies are fitted onto the pin shaft and are positioned on either side of the first swivel arm. The two first ends abut against the connecting base, and the second ends abut against the first swivel arm and are located between the first and second swivel arms.

[0063] In another aspect of the present application, a bracket connection assembly is provided. The bracket connection assembly includes a pivot base, at least one pair of pivot arms, and at least one movement locking member. Each pair of pivot arms includes a first pivot arm and a second pivot arm pivotably connected to the same side of the pivot base. The first and second pivot arms are spaced apart from each other. At least one movement locking member is positioned on the pivot base and is switchable between a movement unlock position and a movement lock position. When the movement locking member is in the movement lock position, it locks the first and second pivot arms simultaneously, restricting the rotation of the first and second pivot arms, and when the movement locking member is in the movement unlock position, the first and second pivot arms are rotatable relative to the pivot base.

[0064] In yet another aspect of the present application, a bracket connection assembly is provided. The bracket connection assembly includes a rotating base, at least one first rotating arm, and at least one rotation locking member. At least one first rotating arm is pivotably connected to the rotating base. At least one rotation locking member is rotatably positioned on the rotating base and is switchable between a rotation unlocked position and a rotation locked position. When the rotation locking member is in the rotation unlocked position, the first rotating arm is rotatable relative to the rotating base, and when the rotation locking member is in the rotation locked position, the first rotating arm is restricted from rotating relative to the rotating base.

[0065] In yet another aspect of the present application, a child carrier is provided. The child carrier includes a bracket connection structure in any one of the above-described embodiments.

[0066] In yet another aspect of the present application, a child carrier is provided. The child carrier includes a bracket connection assembly in any one of the above-described embodiments. [Brief explanation of the drawing]

[0067] [Figure 1] Figure 1 is a cross-sectional view of a bracket connection assembly of a bracket connection structure according to a first embodiment of the present application. [Figure 2] Figure 2 is an exploded view of a bracket connection assembly of a bracket connection structure according to the first embodiment of the present application. [Figure 3] Figure 3 is a schematic diagram of a movable locking member of a bracket connection structure according to the first embodiment of the present application. [Figure 4] Figure 4 is a schematic diagram of the bed frame of a child carrier according to the first embodiment of the present application, showing the child carrier in an unfolded state. [Figure 5] Figure 5 is another schematic diagram of the bed frame of a child carrier according to the first embodiment of the present application, in which the child carrier is in a semi-folded state. [Figure 6]Figure 6 is another schematic diagram of the bed frame of a child carrier according to the first embodiment of the present application, with the child carrier in a folded state. [Figure 7] Figure 7 is a cross-sectional view of a bracket connection structure according to a second embodiment of the present application, in which the two movable connection assemblies of the bracket connection structure are in a locked state. [Figure 8] Figure 8 is another cross-sectional view of a bracket connection structure according to a second embodiment of the present application, in which the two movable connection assemblies of the bracket connection structure are in an unlocked state and the pivot arm is in an extended state. [Figure 9] Figure 9 is another cross-sectional view of a bracket connection structure according to a second embodiment of the present application, in which the two movable connection assemblies of the bracket connection structure are in an unlocked state and the pivot arm is in a folded state. [Figure 10] Figure 10 is a cross-sectional view of a connecting member of a first movable connection assembly according to a second embodiment of the present application. [Figure 11] Figure 11 is a cross-sectional view of a connecting member of a second movable connecting assembly according to a second embodiment of the present application. [Figure 12] Figure 12 is a schematic diagram of a movable locking member according to a second embodiment of the present application. [Figure 13] Figure 13 is a schematic diagram of a movable locking member according to a second embodiment of the present application, viewed from a different perspective. [Figure 14] Figure 14 is a schematic diagram of a connecting member according to a second embodiment of the present application. [Figure 15] Figure 15 is a schematic diagram of the bed frame of a child carrier according to the second embodiment of the present application. [Figure 16] Figure 16 is a schematic diagram of a bracket connection assembly of a bracket connection structure according to a third embodiment of the present application. [Figure 17] Figure 17 is a cross-sectional view of a bracket connection assembly of a bracket connection structure according to a third embodiment of the present application, in which the rotary connection assembly is in a locked state. [Figure 18]Figure 18 is another cross-sectional view of the bracket connection assembly of the bracket connection structure according to the third embodiment of the present application, in which the rotary connection assembly is in the unlocked state and the first and second rotary arms are in the extended state. [Figure 19] Figure 19 is another cross-sectional view of the bracket connection assembly of the bracket connection structure according to the third embodiment of the present application, in which the rotation locking member is in the rotation unlocked position and the first and second rotation arms are in the folded position. [Figure 20] Figure 20 is a schematic diagram of a bracket connection assembly of a bracket connection structure according to the third embodiment of the present application, in which the operating member is omitted. [Figure 21] Figure 21 is a schematic diagram of the operating member of a bracket connection assembly according to a third embodiment of the present application. [Figure 22] Figure 22 is a schematic diagram of the bed frame of a child carrier according to the third embodiment of the present application. [Figure 23] Figure 23 is a cross-sectional view of a bracket connection structure according to the fourth embodiment of the present application. [Figure 24] Figure 24 is a schematic diagram of the first rotating assembly of a bracket connection structure according to the fourth embodiment of the present application, in which the first rotating assembly is in a locked state and the side walls of the rotating base are omitted. [Figure 25] Figure 25 is another schematic diagram of the first rotating assembly of a bracket connection structure according to a fourth embodiment of the present application, in which the first rotating assembly is in an unlocked state and the side walls of the rotating base are omitted. [Figure 26] Figure 26 is a schematic diagram of the first rotary assembly according to the fourth embodiment of the present application, in which the operating member is omitted. [Figure 27] Figure 27 is a cross-sectional view of the second rotating assembly of a bracket connection structure according to a fourth embodiment of the present application. [Figure 28] Figure 28 is a cross-sectional view from a different viewpoint of the second rotating assembly of the bracket connection structure according to the fourth embodiment of the present application, in which the second rotating assembly is in the unlocked state. [Figure 29]Figure 29 is a schematic diagram of a connecting member of a bracket connection structure according to the fourth embodiment of the present application. [Figure 30] Figure 30 is a schematic diagram of a rotating locking member of a bracket connection structure according to the fourth embodiment of the present application. [Figure 31] Figure 31 is a schematic diagram of the bed frame of a child carrier according to the fourth embodiment of the present application. [Figure 32] Figure 32 is a schematic diagram of a rotary connection assembly of a bracket connection structure according to the fifth embodiment of the present application, in which the rotary connection assembly is in a locked state. [Figure 33] Figure 33 is another schematic diagram of the movable connection assembly of the bracket connection structure according to the fifth embodiment of the present application, in which the movable connection assembly is in the unlocked state. [Figure 34] Figure 34 is a cross-sectional view of a rotary connection assembly of a bracket connection structure according to the fifth embodiment of the present application, in which the rotary connection assembly is in an unlocked state and the first and second rotary arms are in an extended state. [Figure 35] Figure 35 is a cross-sectional view of a movable connection assembly of a bracket connection structure according to a fifth embodiment of the present application, in which the movable connection assembly is in an unlocked state and the first pivot arm and the second pivot arm are in an extended state. [Figure 36] Figure 36 is another cross-sectional view of the rotary connection assembly of a bracket connection structure according to the fifth embodiment of the present application, in which the rotary connection assembly is in a locked state and the first and second rotary arms are in a folded state. [Figure 37] Figure 37 is another cross-sectional view of the movable connection assembly of the bracket connection structure according to the fifth embodiment of the present application, in which the movable connection assembly is in the unlocked state and the first and second pivot arms are in the folded state. [Figure 38] Figure 38 is a schematic diagram of a connecting member of a bracket connection structure according to the fifth embodiment of the present application. [Figure 39] Figure 39 is a schematic diagram of a movable locking member according to the fifth embodiment of the present application. [Figure 40]Figure 40 is a schematic diagram of the bed frame of a child carrier according to the fifth embodiment of the present application. [Figure 41] Figure 41 is a schematic diagram of the bed frame of a child carrier according to the seventh embodiment of the present application. [Figure 42] Figure 42 is a schematic diagram of a bracket connection assembly according to the seventh embodiment of the present application. [Figure 43] Figure 43 is a schematic diagram of the bracket connection assembly shown in Figure 42, in which the main rod is omitted. [Figure 44] Figure 44 is a cross-sectional view of the bracket connection assembly of the child carrier, cut along the line U1-U1 in Figure 41. [Figure 45] Figure 45 is a schematic diagram of the engaging rod of the bracket connection assembly shown in Figure 43. [Figure 46] Figure 46 is a schematic diagram of the auxiliary reset member of the child carrier shown in Figure 41. Embodiment of the Invention

[0068] To make the above-mentioned objectives, features, and advantages of the present application clearer and easier to understand, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details will be provided to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and similar improvements can be made without departing from the spirit of the present application by those skilled in the art. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0069] In the description of this application, directions or positional relationships indicated by terms such as "center," "vertical," "horizontal," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "upper," "lower," "inside," "outside," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" are based on the directions or positional relationships shown in the attached drawings and are intended to facilitate the description of this application and simplify the description, and do not indicate or imply that the indicated device or element has a specific direction, or is configured and operates in a specific direction. Therefore, these should not be interpreted as limiting this application.

[0070] Furthermore, the terms “first” and “second” are used merely for descriptive purposes and do not indicate or imply relative importance, nor do they implicitly specify the number of technical features being referred to. Thus, features defined by “first” and “second” may explicitly or implicitly include at least one such feature. In this description, “multiple” means two or more, for example, two or three, unless explicitly and specifically defined otherwise.

[0071] In this application, unless otherwise explicitly provided and defined, the terms “attachment,” “connection,” “joining,” and “fixing” should be interpreted broadly, for example, and may include fixed connections, detachable connections, or integral connections; or mechanical or electrical connections; or direct connections; or indirect connections via an intermediate medium; or internal connections or interactions between two elements. A person skilled in the art will be able to understand the specific meaning of these terms in this application depending on the specific circumstances.

[0072] In this application, unless otherwise explicitly provided and defined, the expression that the first feature is "above" or "below" the second feature may include cases where the first feature is in direct contact with the second feature or indirect contact with the second feature through an intermediate medium. Furthermore, the expression that the first feature is "above," "upper," or "located above" the second feature may include cases where the first feature is directly above or diagonally above the second feature, or it may simply mean that the first feature is at a higher position than the second feature. Similarly, the expression that the first feature is "below," "below," or "located below" the second feature may include cases where the first feature is directly below or diagonally below the second feature, or it may simply mean that the first feature is at a lower position than the second feature.

[0073] When an element is described as being "fixed" to or "placed on top of" another element, that element may be directly placed on the other element, or an intermediate element may exist. Similarly, when an element is described as being "connected" to another element, that element may be directly connected to the other element, or an intermediate element may exist. The terms "vertical," "horizontal," "up," "down," "left," and "right" used herein are for illustrative purposes only and do not limit any particular embodiment.

[0074] According to a first embodiment of the present application, a bracket connection assembly 10, a bracket connection structure 1 including the bracket connection assembly 10, and a child carrier including the bracket connection structure 1 are provided.

[0075] Figures 1 to 4 are schematic diagrams of a bracket connection assembly 10 of a bracket connection structure 1 according to a first embodiment of the present application. The bracket connection assembly 10 includes a movable connection assembly 11. The movable connection assembly 11 has a locked state and an unlocked state. The movable connection assembly 11 includes a pivot base 111, at least one pair of pivot arms 112, and at least one movable locking member 113. The movable locking member 113 functions as a locking member of the bracket connection assembly 10. The pivot arms 112 and the movable locking member 113 are mounted on the pivot base 111. The bracket connection structure 1 is applicable to, for example, a child carrier, but is not limited to, an application to a child carrier. The child carrier may be, for example, a baby crib (including baby hammocks, baby playards, and other types of baby cribs), a stroller, or something similar, which allows the rod members of the child carrier equipped with the bracket connection structure 1 to be unfolded and folded, thereby allowing switching between an open state and a folded state, and thus meeting the different usage requirements of the user.

[0076] As shown in Figures 1 and 2, each pair of pivot arms 112 includes a first pivot arm 112a and a second pivot arm 112b pivotally connected to the same side of the pivot base 111. The first pivot arm 112a and the second pivot arm 112b are spaced apart. The pivot axis on which the first pivot arm 112a rotates relative to the pivot base 111 is X1-X1. The pivot axis on which the second pivot arm 112b rotates relative to the pivot base 111 is X2-X2. The pivot axes X1-X1 and X2-X2 are substantially parallel to each other. The direction of movement MD1 of the movable locking member 113 relative to the pivot base 111 is substantially perpendicular to the pivot axis X1-X1. The movable locking member 113 is movably positioned on the pivot base 111 and is switchable between a movable unlock position and a movable lock position. When the movable locking member 113 is in the movable lock position, the movable connection assembly 11 is locked, and the movable locking member 113 abuts against the first pivot arm 112a and the second pivot arm 112b, restricting their pivoting, and the locking member 113 locks the first pivot arm 112a and the second pivot arm 112b in the deployed position. When the movable locking member 113 is in the movable unlock position, the movable connection assembly 11 is unlocked, and the first pivot arm 112a and the second pivot arm 112b can rotate relative to the pivot base 111, and the movable locking member 113 allows the first pivot arm 112a and the second pivot arm 112b to pivot between the deployed position and the folded position.

[0077] As shown in Figures 1 and 2, the movable connection assembly 11 may be provided with two sets of pivot arms 112. The two sets of pivot arms 112 are positioned on either side of the pivot base 111. In some embodiments, the movable connection assembly 11 may be provided with two movable locking members 113, which are a first movable locking member 113a and a second movable locking member 113b. The two movable locking members 113 act on multiple pivot arms 112 of different sets, respectively. That is, the first movable locking member 113a is configured to restrict or allow the pivoting of both the first pivot arm 112a and the second pivot arm 112b, which are positioned on the same side as the first movable locking member 113a. The second movable locking member 113b is configured to restrict or allow the pivoting of both the first pivot arm 112a and the second pivot arm 112b, which are positioned on the same side as the second movable locking member 113b. In other embodiments, the movable connection assembly 11 may be provided with one set of pivot arms 112 and a movable locking member 113. In yet another embodiment, the movable connection assembly may be provided with two sets of pivot arms 112 and one movable locking member 113, the movable locking member 113 acting on both sets of pivot arms 112. Other configurations are possible, and the disclosure is not limited thereto.

[0078] As shown in Figures 1 and 2, the pivot base 111 includes a housing groove 1113 configured to accommodate a movable locking member 113. The housing groove 1113 is defined by an upper wall 1114 and a pair of side walls 1115 connected to both sides of the upper wall 1114, respectively. One end of the pivot arm 112 is housed in the housing groove 1113 and pivotably connected to the pair of side walls 1115 of the pivot base 111 via a pin shaft (not shown), which may be, for example, a rivet, screw, or bolt. The second pivot arm 112b is closer to the upper wall 1114 of the pivot base 111 than the first pivot arm 112a. When the second pivot arm 112b is extended, one end of the second pivot arm 112b housed in the housing groove 1113 can abut against the upper wall 1114 of the pivot base 111 to prevent excessive pivoting.

[0079] In one embodiment, the pivot base 111 is provided with a sliding groove 1111. Specifically, the side wall 1115 of the pivot base 111 is provided with a sliding groove 1111. The sliding groove 1111 is elongated and extends in a direction parallel to the movement direction MD1 of the movable locking member 113. Referring to Figure 3, the movable locking member 113 is provided with a connecting projection 1133. The connecting projection 1133 is inserted into the sliding groove 1111 and is movable along the sliding groove 1111. The movable locking member 113 is movably connected to the pivot base 111 by inserting the connecting projection 1133 into the sliding groove 1111. In some other embodiments, the movable locking member 113 may be provided with a sliding groove 1111, and the pivot base 111 may be provided with a connecting projection 1133, and is not limited thereto.

[0080] As shown in Figures 1-3, the pivot base 111 is provided with a plurality of sliding grooves 1111, for example, four sliding grooves. The movable locking member 113 is provided with a plurality of connecting protrusions 1133 corresponding to these grooves. For example, each movable locking member 113 is provided with two connecting protrusions, thereby allowing the movable locking member 113 to move more smoothly along direction MD1. In order to securely connect and smoothly move the movable locking member 113, each movable locking member 113 may be provided with four connecting protrusions 1133, and the pivot base 111 may be provided with eight sliding grooves to cooperate with the two movable locking members 113.

[0081] Figure 3 is a schematic diagram of a movable locking member 113 of a bracket connection structure 1 according to a first embodiment of the present application. The movable locking member 113 has a generally trapezoidal block structure. The movable locking member 113 includes a first surface 1131 and a second surface 1132 arranged on opposite sides of each other, and a first side surface 11304 and a second side surface 11305 adjacent to the first surface 1131 and the second surface 1132, respectively. When the movable locking member 113 is in the movable locking position, the first pivot arm 112a is locked by the first surface 1131 and the second pivot arm 112b is locked by the second surface 1132, thereby restricting the first pivot arm 112a and the second pivot arm 112b from rotating relative to the pivot base 111. When the movable locking member 113 is in the movable unlock position, the first pivot arm 112a is positioned offset from the first surface 1131, and the second pivot arm 112b is positioned offset from the second surface 1132, thereby allowing the first pivot arm 112a and the second pivot arm 112b to rotate relative to the pivot base 111. In this embodiment, when the movable locking member 113 is in the movable lock position, the first pivot arm 112a abuts against the first surface 1131, and the second pivot arm 112b abuts against the second surface 1132. When the movable locking member 113 is in the movable unlock position, the first pivot arm 112a is spaced away from the first surface 1131, and the second pivot arm 112b is spaced away from the second surface 1132. The bracket connection structure 1 becomes more stable when the first pivot arm 112a abuts against the first surface 1131 and the second pivot arm 112b abuts against the second surface 1132. In some embodiments, the movable locking member 113 is further provided with a guide surface 1135 configured to guide at least one of the first pivot arm 112a and the second pivot arm 112b to pivot. In this embodiment, the guide surface 1135 is an arc-shaped surface located at the junction of the second side surface 11305 and the second surface 1132. The arrangement of the guide surface 1135 allows the second pivot arm 112b to be guided to pivot along the guide surface 1135, preventing the movable locking member 113 from interfering with the pivot of the second pivot arm 112b.

[0082] As shown in Figures 1 and 2, the movable connection assembly 11 is further provided with a connecting member 115. The connecting member 115 is passively connected to two movable locking members 113, thereby allowing the two movable locking members 113 to switch synchronously between a movable lock position and a movable unlock position. The connecting member 115 is movably positioned on the pivot base 111. The connecting member 115 is at least partially housed in a housing groove of the pivot base 111 and can move along a direction perpendicular to the pivot axis X1-X1. The direction of movement MD2 of the connecting member 115 is at an angle with respect to the direction of movement MD1 of the movable locking members 113. The connecting member 115 is provided with a avoidance groove 1151. When the movable locking member 113 is in the movable unlock position, the movable locking member 113 is at least partially housed in the avoidance groove 1151. The avoidance groove 1151 has a bottom wall 1156 and a pair of side walls 1157 connected to both sides of the bottom wall 1156. The bottom wall 1156 faces the upper wall 1114 of the pivot base 111. The connecting member 115 is further provided with a spacing portion 1152. The spacing portion 1152 divides the avoidance groove 1151 into a first avoidance groove 1151a and a second avoidance groove 1151b. The two movable locking members 113 are housed in the first avoidance groove 1151a and the second avoidance groove 1151b, respectively. That is, the first movable locking member 113a is configured to be at least partially housed in the first avoidance groove 1151a, and the second movable locking member 113b is configured to be at least partially housed in the second avoidance groove 1151b. In this embodiment, when the movable locking member 113 is in the movable lock release position, the first side surface 11304 of the movable locking member 113 can come into contact with the spacing portion 1152.

[0083] The connecting member 115 is further provided with an operable operating section 1153. The bottom wall 1156 of the avoidance groove 1151 forms the operating section 1153. When the movable lock assembly 11 is locked, the operating section 1153 protrudes at least partially outward from the housing groove 1113 of the pivot base 111, enabling the operation of the operating section 1153, thereby driving the two movable lock members 113 to move. In some embodiments (see Figure 10), the operating section 1153 is further provided with reinforcing ribs 1154, which improve the strength of the operating section 1153.

[0084] In one embodiment, as shown in Figures 1-3, the pivot base 111 is provided with guide holes 1116. For example, each of the two side walls 1115 of the pivot base 111 is provided with a guide hole 1116. The guide hole 1116 is, for example, an elongated hole. The extending direction of the guide hole 1116 is substantially parallel to the movement direction MD2 of the connecting member 115. Each moving locking member 113 is provided with a drive groove 116. The drive groove 116 is elongated. The extending direction of the drive groove 116 is at an angle to both the movement direction MD1 of the moving locking member 113 and the movement direction MD2 of the connecting member 115. The connecting member 115 is connected to the drive member. The drive member slides into the drive groove 116 and drives the moving locking member 113 to switch between a moving lock position and a moving unlock position. Specifically, the connecting member 115 is provided with a connecting through-hole 1155. The connecting through-hole 1155 extends through a pair of side walls of the avoidance groove 1151. The connecting member 115 is passively connected to two movable locking members 113 via a guide hole 1116, a connecting through-hole 1155, and a drive pin 118 that passes through the drive groove 116, and is also movably connected to the pivot base 111. The drive pin 118 may be, for example, a rivet, screw, bolt, etc. In this embodiment, the drive pin 118 is formed as a drive member. In other embodiments, the drive member and the connecting member 115 may be formed integrally.

[0085] In some other illustrated embodiments, the drive groove 116 may be located on the connecting member 115. The drive member is connected to the movable locking member 113. The drive member and the movable locking member 113 may be formed separately or integrally. For example, the movable locking member 113 may be provided with a connecting through hole 1155, and the pivot base 111 may be provided with a guide hole 1116. The guide hole 1116 is an elongated hole extending substantially parallel to the direction of movement MD1 of the movable locking member 113. For example, the guide hole 1116 may communicate with a sliding groove 1111, or may be formed as the sliding groove 1111. The connecting member 115 is passively connected to the two movable locking members 113 via a drive pin 118 that passes through the guide hole 1116, the drive groove 116, and the connecting through hole 1155. The drive pin 118 is formed as a drive member.

[0086] In some embodiments, as shown in Figures 1-2, the movable connection assembly 11 further includes a movable reset member 114 positioned between two movable locking members 113. The movable reset member 114 is configured to bias the two movable locking members 113, causing them to move toward the movable lock position. The movable reset member 114 is, for example, a compression spring. Referring to Figure 3, each of the two movable locking members 113 is provided with a receiving groove 1136 configured to at least partially accommodate the movable reset member 114, so that both ends of the movable reset member 114 are housed in the receiving groove 1136, preventing displacement of the movable reset member 114 while biasing the movable locking members 113. In some other embodiments, one of the two movable locking members 113 is provided with a receiving groove 1136, and one end of the movable reset member 114 is housed in the receiving groove 1136.

[0087] According to the bracket connection structure 1 of the first embodiment of the present application, the movable locking member 113 can be switched between a movable lock position and a movable unlock position by moving the movable locking member 113 in parallel, thereby restricting or allowing the pivoting of the pivot arm 112. As a result, a bracket connection structure 1 with a simple structure and easy switching of states can be realized.

[0088] Figures 4-6 are schematic diagrams of a child carrier switching from an unfolded state to a folded state according to the first embodiment of the present application. The child carrier employs the bracket connection assembly 10 in the first embodiment.

[0089] As shown in Figures 4-6, a child carrier is, for example, a crib, a baby playard, etc. The child carrier may include a bed frame 1000 and an enclosure (enclosure) not shown. The enclosure may be made of fabric. The enclosure is connected to the bed frame 1000 and defines an accommodating space for the child carrier, in which the child can sleep or play. The bed frame 1000 includes an armrest frame 100 and a plurality of support legs 200 configured to support the armrest frame 100. The armrest frame 100 includes a pair of first armrest frames 110 and a pair of second armrest frames 120 adjacent to the first armrest frames 110. The adjacent first armrest frames 110 and second armrest frames 120 are connected to each other via corner connecting members 130. One end of each support leg 200 is connected to the armrest frame 100 via a corner connecting member 130, and the other end of each support leg 200 is provided with a roller to facilitate the movement of the child carrier.

[0090] In one embodiment, as shown in Figures 4-6, each first armrest frame 110 includes two sets of swivel arms 102a and 102b. Each set of swivel arms 102a and 102b includes a first swivel arm 102a and a second swivel arm 102b. The first ends of two opposing first swivel arms 102a are pivotably connected to a connecting base 101, and the second ends of two opposing first swivel arms 102a are each connected to a corner connecting member 130. The first ends of two opposing second swivel arms 102b in the first armrest frame 110 are pivotably connected to a connecting base 101, and the second ends of two opposing second swivel arms 102b in the first armrest frame 110 are each connected to a corner connecting member 130. The second slewing arm 102b is located above the first slewing arm 102a.

[0091] The two first swivel arms 102a of the first armrest frame 110 are respectively connected to individual adjacent support legs 200 via connecting rods 140, so that when the bed frame 1000 is folded, the two support legs 200 adjacent to each first armrest frame 110 can move closer to each other. Specifically, the support legs 200 are provided with sliding members 400. The sliding members 400 are slidably fitted onto the support legs 200. The first end of the connecting rod 140 is rotatably connected to the sliding member 400, and the second end of the connecting rod 140 is rotatably connected to the adjacent first swivel arm 102a, so that when the bed frame 1000 is folded, the two support legs 200 adjacent to each first armrest frame 110 can move closer to each other in a first direction D1. The first swivel arms 102a of the first armrest frame 110 are provided with a concave surface 104. The concave surface 104 prevents the connecting rod 140 from protruding excessively from the first swivel arm 102a after the armrest frame 100 is folded.

[0092] Correspondingly, each second armrest frame 120 includes two sets of swivel arms 102a and 102b. Each set of swivel arms 102a and 102b includes a first swivel arm 102a and a second swivel arm 102b. The opposing first ends of the two first swivel arms 102a in the second armrest frame 120 are pivotably connected to a connecting base 101, and the opposing first ends of the two second swivel arms 102b in the second armrest frame 120 are pivotally connected to the connecting base 101. Each of the two first swivel arms 102a in the second armrest frame 120 is connected to an adjacent support leg 200 via a connecting rod 140, so that when the bed frame 1000 is folded, the two adjacent support legs 200 on each second armrest frame 120 can move closer to each other. Specifically, the first end of the connecting rod 140 is rotatably connected to the sliding member 400, and the second end of the connecting rod 140 is rotatably connected to the first swivel arm 102a. Two adjacent first swivel arms 102a connected to the same corner connecting member 130 are each connected to the same sliding member 400 via different connecting rods 140, so that when the bed frame 1000 is folded, the armrest frame 100 can be folded in one direction (first direction D1 or second direction D2), thereby bringing the multiple support legs 200 closer together simultaneously in both the first direction D1 and the second direction D2. The first swivel arm 102a of the second armrest frame 120 is provided with a concave surface 104. The concave surface 104 prevents the connecting rod from protruding excessively from the first swivel arm 102a after the armrest frame 100 is folded.

[0093] According to the child carrier of the present embodiment, the child carrier can be switched between a folded state and an unfolded state by arranging a foldable first armrest frame 110 and a foldable second armrest frame 120. In one embodiment, the first armrest frame 110 and the second armrest frame 120 are further connected, respectively, to individual adjacent support legs 200 via connecting rods 140, so that when the child carrier is unfolded or folded, the multiple support legs 200 of the child carrier can move apart from or closer to each other, thereby enabling the child carrier to be quickly unfolded or folded and facilitating user operation.

[0094] As shown in Figure 4, the bed frame 1000 is provided with the aforementioned bracket connection assemblies 10. The bracket connection assemblies 10 include a plurality of movable connection assemblies 11. The plurality of movable connection assemblies 11 function as a first armrest frame 110 and a second armrest frame 120, respectively. Specifically, the two sets of first swivel arms 102a and the two sets of second swivel arms 102b of each first armrest frame 110 correspond to the two sets of pivot arms 112 of the movable connection assembly 11 (i.e., the first pivot arm 112a and the second pivot arm 112b), and the connection base 101 of each first armrest frame 110 corresponds to the pivot base 111 of the movable connection assembly 11. Similarly, the two sets of first swivel arms 102a and the two sets of second swivel arms 102b of each second armrest frame 120 correspond to the two sets of pivot arms 112 of the movable connection assembly 11 (i.e., the first pivot arm 112a and the second pivot arm 112b), and the connection base 101 of each second armrest frame 120 corresponds to the pivot base 111 of the movable connection assembly 11.

[0095] According to a first embodiment of the present application, a bracket connection structure 1 is further provided. The bracket connection structure 1 includes a plurality of bracket connection assemblies 10, a plurality of corner connection members 130, support legs 200, and a plurality of connecting rods 140. The plurality of bracket connection assemblies 10 are connected to the corner connection members 130. The support legs 200 are connected to the corner connection members 130. At least one swivel arm 102a / 102b of each bracket connection assembly 10 is connected to a sliding structure via a connecting rod 104, so that when at least one swivel arm of one bracket connection assembly 10 rotates, at least one swivel arm of the other bracket connection assembly 10 is driven to rotate via the connecting rod 140 and the sliding structure. In this embodiment, each of the plurality of bracket connection assemblies 10 includes a first armrest frame 110 and a second armrest frame 120. The sliding structure includes a sliding member 400 that is slidably disposed on the support legs 200. The first armrest frame 110 and the second armrest frame 120 are connected to the same sliding member 400 via a connecting rod 140. In other illustrated embodiments, the sliding structure may include, for example, a sliding groove and a sliding pin shaft passing through the sliding groove, and the first armrest frame 110 and the second armrest frame 120 may be connected to the same sliding pin 400 via the connecting rod 140, and the present application is not limited thereto.

[0096] As shown in Figures 4-6, when it is necessary to fold the baby crib (child carrier), referring to Figure 4, the connecting member 115 of the movable connection assembly 11 located on the pair of first armrest frames 110 (or the pair of second armrest frames 120) is pressed in direction MD2, and the drive connection between the connecting member 115 and the two movable lock members 113 drives the two movable lock members 113 to move from the movable lock position to the movable unlock position, thereby making the two first swivel arms 102a and the two second swivel arms 102b of the first armrest frame 110 pivotable. At this time, the movable connection assembly 11 located on the second armrest frame 120 (or the first armrest frame 110) remains locked, and the sliding member 400 cannot move downward (i.e., away from the corner connection member 130) or can only move a very short distance. Therefore, the two first swivel arms 102a and the two second swivel arms 102b of the first armrest frame 110 (or second armrest frame 120) are folded only slightly, thereby restricting the two movable locking members 113 of the movable connection assembly 11 located on the first armrest frame 110 (or second armrest frame 120) to the movable unlocked position. Then, the connecting member 115 of the movable connection assembly 11 located on the pair of second armrest frames 120 (or pair of first armrest frames 110) is pressed in direction MD2, and the drive connection between the connecting member 115 and the two movable locking members 113 drives the two movable locking members 113 to move from the movable locked position to the movable unlocked position, thereby making the two first swivel arms 102a and the two second swivel arms 102b of the second armrest frame 120 pivotable.Referring to Figure 5, when the user further folds one of the first armrest frame 110 and the second armrest frame 120, one connecting rod 140 drives a sliding member 400 downward, and the downward movement of the sliding member 400 can drive another connecting rod 140 downward, thereby driving the other of the first armrest frame 110 and the second armrest frame 120 to fold, thereby moving the multiple support legs 200 toward each other simultaneously in both the first direction D1 and the second direction D2, and the first armrest frame 110 and the second armrest frame 120 fold simultaneously, thereby enabling rapid folding of the child carrier (see Figure 6). It is understood that the child carrier in this embodiment includes a pair of first armrest frames 110 and a pair of second armrest frames 120. When the movable connection assemblies 11 of the pair of first armrest frames 110 and the pair of second armrest frames 120 are both in the unlocked state, the connection between the first swivel arm 102a, the plurality of connecting rods 140, and the four sliding members 400 allows the pair of first armrest frames 110 and the pair of second armrest frames 120 to be folded simultaneously by continuously folding either the first armrest frame 110 or either of the second armrest frames 120.

[0097] When it is necessary to deploy the crib, as shown in Figure 6, the two first swivel arms 102a and the two second swivel arms 102b of one of the first armrest frames 110 (or one of the second armrest frames 120) can be pivoted to rotate from the folded position to the deployed position. A connecting rod 140 drives a sliding member 400 upward (i.e., toward the corner connecting member 130), which drives another connecting rod 140 connected to this sliding member 400 to deploy the two first swivel arms 102a and the two second swivel arms 102b of the corresponding second armrest frame 120 (or the corresponding first armrest frame 110). As a result, the two first armrest frames 110 and the two second armrest frames 120 are deployed synchronously, thereby deploying the child carrier (see Figure 4).

[0098] When the crib is in the folded state (see Figure 6), the two sets of swivel arms 102a and 102b of the first armrest frame 110 can rotate to extend substantially vertically (i.e., rotate substantially perpendicular to the direction of movement MD1 of the two locking members 113), each positioned on the corresponding side of the two moving locking members 113, pushing the two moving locking members 113 closer together, compressing the moving reset member 114, and preventing the two moving locking members 113 from sliding toward the moving lock position in opposite directions. As the crib is gradually unfolded to the extended state, the two sets of swivel arms 102a and 102b of the first armrest frame gradually rotate to extend substantially horizontally (i.e., rotate substantially parallel to the direction of movement MD1 of the two locking members 113). In this process, the limiting force on the two moving lock members 113 by the two sets of swivel arms 102a and 102b of the first armrest frame 110 weakens, and the elastic restoring force of the moving reset member 114 causes the two moving lock members 113 to automatically move from the moving unlock position to the moving lock position, thereby locking the crib in the unfolded state. The second armrest frame 120 undergoes a similar process, which will not be described in detail here. As the second swivel arm 102b (or second pivot arm 112b) gradually rotates and extends horizontally, the limiting force on the moving lock members 113 by the second swivel arm 102b (or second pivot arm 112b) weakens, and the elastic restoring force of the moving reset member 114 allows the second swivel arm 102b (or second pivot arm 112b) to rotate and slide while in contact with the guide surface 1135. The guide surface 1135 is arc-shaped.

[0099] According to the child carrier of the first embodiment of the present application, the arrangement of the bracket connection structure allows the child carrier to be quickly folded or unfolded, and the structure is simple and easy to operate.

[0100] Figures 7-9 are schematic diagrams of a bracket connection structure 1 according to a second embodiment of the present application. The bracket connection structure 1 is provided with two bracket connection assemblies 10. Both bracket connection assemblies 10 are formed as movable connection assemblies 11, and are a first movable assembly 11a and a second movable assembly 11b, respectively. The two movable connection assemblies 11 are passively connected via a connecting member 20, so that when one movable connection assembly 11 is operated, the other movable connection assembly 11 is driven synchronously and can be switched between a locked state and an unlocked state, so that the two movable connection assemblies 11 connected to each other can be switched between states synchronously.

[0101] As shown in Figures 7-9, each movable connection assembly 11 includes a pivot base 111, at least one pair of pivot arms 112, at least one movable locking member 113, and a movable reset member 114 that biases the movable locking member 113 toward the movable lock position. In this embodiment, each movable connection assembly 11 is provided with two pairs of pivot arms 112 and two movable locking members 113. The two movable locking members 113 act on different pairs of pivot arms 112, respectively, to restrict or allow the rotation of the corresponding pivot arms 112 relative to the pivot base 111. The movable reset member 114 is connected to the two movable locking members 113, respectively, to bias the two movable locking members 113 toward the movable lock position. Referring to Figures 7-9, each movable connection assembly 11 is further provided with a connecting member 115. The connecting member 115 is passively connected to the two movable locking members 113.

[0102] In one embodiment, each pair of pivot arms 112 includes a first pivot arm 112a and a second pivot arm 112b pivotably connected to the same side of the pivot base 111. The first pivot arm 112a and the second pivot arm 112b are spaced apart from each other. In this embodiment, the first pivot arm 112a is located below the second pivot arm 112b. When the movement locking member 113 is in the movement lock position, the movement locking member 113 abuts against the first pivot arm 112a and the second pivot arm 112b, thereby restricting the pivoting of the first pivot arm 112a and the second pivot arm 112b. When the movement locking member 113 is in the movement unlock position, the first pivot arm 112a and the second pivot arm 112b are rotatable relative to the pivot base 111.

[0103] In this embodiment, the bracket connection structure 1 has at least the following configurations that differ from the bracket connection structure 1 in the first embodiment.

[0104] Figures 10-11 are schematic diagrams of the connecting member 115a of the first movable assembly 11a and the connecting member 115b of the second movable assembly 11b, respectively. The connecting member 115a of the first movable assembly 11a is provided with an operable operating section 1153. The connecting member 115b of the second movable assembly 11b is not provided with an operating section 1153, so that the user can drive the two movable connecting assemblies 11 to switch synchronously from a locked state to an unlocked state by operating only the connecting member 115a of the first movable assembly 11a. In some embodiments, referring to Figure 10, the operating section 1153 of the connecting member 115a is further provided with a reinforcing rib 1154 that can improve the strength of the operating section 1153. The reinforcing rib 1154 is connected to the bottom wall 1156 of the avoidance groove 1151 and is substantially parallel to the pair of side walls of the avoidance groove 1151.

[0105] Referring to Figures 7-9, the connecting member 115 is provided with a drive groove 116. The drive groove 116 is elongated. The direction of extension of the drive groove 116 is at an angle to both the movement direction MD1 of the movable locking member 113 and the movement direction MD2 of the connecting member 115. Two drive grooves 116 are provided. The two drive grooves 116 are positioned symmetrically on the side walls 1157 of the first avoidance groove 1151a and the side walls of the second avoidance groove 1151b, respectively. The connecting member 115 is connected to the drive member. The drive member slides into the drive groove 116 and drives the movable locking member 113 to switch between the movable lock position and the movable unlock position. Specifically, each movable locking member 113 is provided with a drive projection 117. The drive projection 117 and the movable locking member 113 are formed integrally. In this embodiment, the drive projection 117 is formed as a drive member. Each drive projection 117 is inserted and fitted into the corresponding drive groove 116, thereby realizing a drive connection between the movable locking member 113 and the connecting member 115. Alternatively, the movable locking member 113 may be provided with a drive groove 116, and the connecting member 115 may be provided with a drive projection 117, and the drive projection 117 may be inserted and fitted into the drive groove 116 to realize a drive connection between the movable locking member 113 and the connecting member 115.

[0106] In some other embodiments, each movable locking member 113 is provided with a drive groove 116, and the connecting member 115 is provided with two corresponding connecting through holes 1155. The connecting through holes 1155 extend through a pair of side walls of the avoidance groove 1151. The pivot base 111 is provided with a guide hole 1116, which is, for example, an elongated hole. The direction of extension of the guide hole 1116 is substantially parallel to the direction of movement MD2 of the connecting member 115. The connecting member 115 is passively connected to the two movable locking members 113 via a drive pin 118 that passes through the guide hole 1116, the connecting through hole 1155, and the drive groove 116, and is also movably connected to the pivot base 111. The drive pin 118 may be, for example, a rivet, screw, bolt, etc. In some other illustrated embodiments, the connecting member 115 may be provided with a drive groove 116, the movable locking member 113 may be provided with a connecting through hole 1155, and the pivot base 111 may be provided with a guide hole 1116. The guide hole 1116 is an elongated hole extending substantially parallel to the direction of movement of the movable locking member 113. For example, the guide hole 1116 may communicate with or be the sliding groove 1111. The connecting member 115 is passively connected to the two movable locking members 113 via a drive pin 118 that passes through the guide hole 1116, the drive groove 116, and the connecting through hole 1155.

[0107] Figures 12-13 are schematic diagrams of a movable locking member 113 according to a second embodiment of the present application. The movable locking member 113 has a generally L-shaped block structure. The movable locking member 113 includes a first portion 11301 and a second portion 11302 positioned on the first portion 11301. The first portion 11301 forms a first surface 1131 configured to abut against a first pivot arm 112a, and the second portion 11302 forms a second surface 1132 configured to abut against a second pivot arm 112b. The first surface 1131 is substantially parallel to the second surface 1132. When the movable locking member 113 is in the movable lock position, the first pivot arm 112a is locked by the first surface 1131 and the second pivot arm 112b is locked by the second surface 1132, thereby restricting the rotation of the first and second pivot arms 112a and 112b relative to the pivot base 111. When the movable locking member 113 is in the movable unlock position, the first pivot arm 112a is positioned offset from the first surface 1131 and the second pivot arm 112b is positioned offset from the second surface 1132, thereby allowing the first and second pivot arms 112a and 112b to rotate relative to the pivot base 111. In this embodiment, when the movable locking member 113 is in the movable lock position, the first pivot arm 112a abuts against the first surface 1131, and the second pivot arm 112b abuts against the second surface 1132. When the movable locking member 113 is in the movable unlock position, the first pivot arm 112a moves away from the first surface 1131, and the second pivot arm 112b moves away from the second surface 1132. The bracket connection structure 1 becomes more stable when the first pivot arm 112a abuts against the first surface 1131 and the second pivot arm 112b abuts against the second surface 1132. A relief recess 11303 is formed between the first portion 11301 and the second portion 11302, so that when the movable locking member 113 is in the movable unlocked position, the second surface 1132 is positioned offset from the second pivot arm 112b, and the second pivot arm 112b is rotatable relative to the pivot base 111.In comparison with the first embodiment, in this embodiment, the movable locking member 113 does not need to be provided with a guide surface 1135, and an arc-shaped chamfer may be formed on the edge of the second surface 1132 adjacent to the second pivot arm 112b.

[0108] As shown in Figures 7-9, both ends of the connecting member 20 are connected to the movable locking members 113 of the two movable connection assemblies 11, respectively, so that the movable locking members 113 of the two movable connection assemblies 11 switch synchronously between the movable lock position and the movable unlock position. One end of the connecting member 20 is connected to the second movable locking member 113b of the first movable assembly 11a, and the other end of the connecting member 20 is connected to the second movable locking member 113b of the second movable assembly 11b.

[0109] Figure 14 is a schematic diagram of a connecting member 20 according to a second embodiment of the present application. The connecting member 20 includes a tension rope 21, a first latch end 22a and a second latch end 22b provided at both ends of the tension rope 21, and a sheath 23 that covers the outside of the tension rope 21. The first latch end 22a and the second latch end 22b have the same structure. The sheath 23 is positioned outside the tension rope 21. At least a portion of the tension rope 21, the first latch end 22a, and the second latch end 22b all extend outside the sheath 23. One end of the sheath 23 is provided with a first connecting end 24a configured to allow the passage of the tension rope 21, and the other end of the sheath 23 is provided with a second connecting end 24b configured to allow the passage of the tension rope 21. Referring to Figures 7-9, the first connection end 24a is restricted by the pivot base 111 of the first movable assembly 11a, and the second connection end 24b is restricted by the pivot base 111 of the second movable assembly 11b.

[0110] Referring to Figures 7-9 and 12-13, the movable locking member 113 is provided with an engagement hole 1137 configured to allow the passage of the tension rope 21. The first latch end 22a and the second latch end 22b each engage with the engagement hole 1137. Specifically, the first movable locking member 113a and the second movable locking member 113b of each movable connection assembly 11 are each provided with an engagement hole 1137. The first latch end 22a engages with the engagement hole 1137 of the second movable locking member 113b of the first movable assembly 11a, and the second latch end 22b engages with the engagement hole 1137 of the second movable locking member 113b of the second movable assembly 11b. The tension rope 21 extends by sequentially passing through the engagement hole 1137 of the second movable locking member 113b of the first movable assembly 11a, the engagement hole 1137 of the first movable locking member 113a of the second movable assembly 11b, the movable reset member 114, and the engagement hole 1137 of the second movable locking member 113b of the second movable assembly 11b. The tension rope 21 may be made of, for example, a steel rope or a carbon fiber rope. In some other embodiments not shown, the engagement hole 1137 may not be provided in the first movable locking member 113a of the first movable assembly 11a, and the engagement hole 1137 may not be provided in the first movable locking member 113a of the second movable assembly 11b, and the present application is not limited thereto.

[0111] As shown in Figures 12-13, the engagement hole 1137 is provided in the second portion 11302 of the movable locking member 113. One end of the engagement hole 1137 communicates with the receiving groove 1136 of the movable locking member 113. In some embodiments, the engagement hole 1137 is provided with a contact portion 1138. Referring to Figure 7, the first latch end 22a and the second latch end 22b are configured to contact the corresponding contact portion 1138 in the engagement hole 1137, thereby enabling the first latch end 22a and the second latch end 22b to engage with the engagement hole 1137, respectively. In this embodiment, the contact portion 1138 is located at the other end of the engagement hole 1137 away from the receiving groove 1136. In this embodiment, the contact portion 1138 is located on the edge of the corresponding second movable locking member 113b away from the receiving groove 1136. The first latch end 22a is at least partially housed within the engagement hole 1137 of the second movable locking member 113b of the first movable assembly 11a and abuts against the contact portion 1138 of the second movable locking member 113b of the first movable assembly 11a. The second latch end 22b is located outside the engagement hole 1137 of the second movable locking member 113b of the second movable assembly 11b and abuts against the contact portion 1138 of the second movable locking member 113b of the second movable assembly 11b. In other embodiments, the position of the contact portion 1138 on the second movable locking member 113b can be changed, thereby adjusting the relative positions between the first latch end 22a, the second latch end 22b, and the individual second movable locking members 113b. The contact portion 1138 is not limited to being located on the edge of the second movable locking member 113b away from the receiving groove 1136.

[0112] As shown in Figures 12 and 13, in some embodiments, the movable locking member 113 is further provided with a mounting through-hole 1139 to which a first latch end 22a or a second latch end 22b can extend. For example, as shown in Figure 7, the second movable locking member 113b of the second movable assembly 11b is further provided with a mounting through-hole 1139 to which a second latch end 22b can extend, and the second movable locking member 113b of the first movable assembly 11a is further provided with a mounting through-hole 1139 to which a first latch end 22a can extend. The mounting through-hole 1139 is provided with a second portion 11302. One end of the mounting through-hole 1139 communicates with a receiving groove 1136. The mounting through-hole 1139 communicates with an engagement hole 1137, allowing the tension rope 21 to move between the mounting through-hole 1139 and the engagement hole 1137. When it is necessary to install the connecting member 20, the first latch end 22a and the second latch end 22b may each extend through the mounting through hole 1139, and then the tension rope 21 is moved into the engagement hole 1137, and the first latch end 22a and the second latch end 22b each engage with the contact portion 1138. When it is necessary to remove the connecting member 20, the first latch end 22a, the second latch end 22b, and the tension rope 21 may first be moved from the engagement hole 1137 to the mounting through hole 1139, and then the first latch end 22a and the second latch end 22b extend through the corresponding mounting through hole 1139 and outward from the corresponding mounting through hole 1139. The configuration of the mounting through hole 1139 communicating with the engagement hole 1137 allows the connecting member 20 to be easily installed and removed.

[0113] In one embodiment, as shown in Figures 7 to 9, a fixed frame 119 is provided on the pivot base 111 of the movable connection assembly 11. The tension rope 21 of the connecting member 20 can extend through the fixed frame 119. The fixed frame 119 is located within a housing groove 1113 of the pivot base 111. The fixed frame 119 is formed by cutting and bending a portion of the side wall 1115 of the pivot base 111 and folding this portion inward (i.e., toward the housing groove 1113). The fixed frame 119 and the pivot base 111 are formed integrally, thereby improving the connection strength between the fixed frame 119 and the pivot base 111 and reducing manufacturing costs. In other embodiments, the fixed frame 119 may be a component fixed to the side wall 1115 of the pivot base 111 by, for example, welding, riveting, or adhesive, and the present invention is not limited thereto.

[0114] Continuing to refer to Figures 7 to 9, the pivot base 111 is provided with a fixed frame 119. The fixed frame 119 is formed by cutting and bending a portion of one of the side walls 1115 of the pivot base 111 and folding this portion inward. In the first movable assembly 11a, the fixed frame 119 is positioned adjacent to the second movable locking member 113b and is located in the avoidance recess 11303 of the second movable locking member 113b. In the second movable assembly 11b, the fixed frame 119 is positioned adjacent to the first movable locking member 113a and is located in the avoidance recess 11303 of the first movable locking member 113a. The first connecting end 24a is restricted by the fixed frame 119 of the first connecting assembly, and the second connecting end 24b is restricted by the fixed frame 119 of the second connecting assembly. Specifically, the first connecting end 24a abuts against the fixed frame 119 of the first connecting assembly, and the second connecting end 24b abuts against the fixed frame 119 of the second connecting assembly. The first latch end 22a and the first connecting end 24a are located on one of the two sides of the fixed frame 119, respectively. The second latch end 22b and the second connecting end 24b are located on one of the two sides of the fixed frame 119, respectively. In other embodiments, the fixed frame 119 may be formed by cutting and bending a portion of the two side walls 1115 of the pivot base 111 inward. The pivot base 111 may be provided with a plurality of fixed frames 119, for example, two fixed frames 119. The two fixed frames 119 are a first fixed frame 119a positioned adjacent to the first movable locking member 113a, and a second fixed frame 119b positioned adjacent to the second movable locking member 113b. The first connecting end 24a of the connecting member 20 abuts against the second fixed frame 119b of the first movable assembly 11a, and the second connecting end 24b of the connecting member 20 abuts against the first fixed frame 119a of the second movable assembly 11b.In some other embodiments not shown, one fixed frame 119 may be provided on the pivot base 111 of the first movable assembly 11a and the second movable assembly 11b, and two fixed frames 119 may be provided on the other of the first movable assembly 11a and the second movable assembly 11b, but the present invention is not limited thereto.

[0115] According to the bracket connection structure 1 in the second embodiment of the present application, the operating part 1153 of the first movable assembly 11a is operated to move the first movable locking member 113a and the second movable locking member 113b of the first movable assembly 11a from the locked position to the unlocked position, and the second movable locking member 113b of the second movable assembly 11b is driven by the connecting member 20 to move synchronously from the locked position to the unlocked position. The movement of the second movable locking member 113b of the second movable assembly 11b can drive the connecting member 115b of the second movable assembly 11b to move, thereby driving the first movable locking member 113a of the second movable assembly 11b from the locked position to the unlocked position, so that the pivot arms 112 of the two movable connection assemblies 11 can pivot with respect to the pivot base 111. The bracket connection structure 1 in this embodiment has a simple structure and is easy to operate.

[0116] Figure 15 is a schematic diagram of a child carrier according to a second embodiment of the present application. The child carrier may include a bed frame 1000 and an enclosure (not shown). The enclosure may be made of fabric. The enclosure is connected to the bed frame 1000 and defines the accommodation space of the child carrier, in which the child can sleep and play. The bed frame 1000 includes a plurality of armrest frames 100 and a plurality of support legs 200 configured to support the armrest frames 100. The armrest frames 100 include a pair of first armrest frames 110 and a pair of second armrest frames 120 adjacent to the first armrest frames 110. The child carrier in this embodiment has at least the following configurations that differ from the child carrier in the first embodiment.

[0117] As shown in Figure 15, the bed frame 1000 is provided with a bracket connection assembly 10 of the bracket connection structure 1 of the second embodiment. The bracket connection assembly 10 includes a first moving assembly 11a and a second moving assembly 11b. The first moving assembly 11a functions as a first armrest frame 110, and the second moving assembly 11b functions as a second armrest frame 120. Specifically, the two sets of first swivel arms 102a and the two sets of second swivel arms 102b of each first armrest frame 110 correspond to the two sets of pivot arms 112 of the first moving assembly 11a (i.e., the first pivot arm 112a and the second pivot arm 112b), respectively. The connection base 101 of each first armrest frame 110 corresponds to the pivot base 111 of the first moving assembly 11a. The two sets of first swivel arms 102a and the two sets of second swivel arms 102b of each second armrest frame 120 correspond to the two sets of pivot arms 112 of the second moving assembly 11b (i.e., the first pivot arm 112a and the second pivot arm 112b), respectively. The connecting base 101 of each second armrest frame 120 corresponds to the pivot base 111 of the second moving assembly 11b.

[0118] In this embodiment, the bracket connection structure 1 further includes a corner connecting member 130, a support leg 200, and a connecting rod 140. The first armrest frame 110 and the second armrest frame 120 are connected to the corner connecting member 130. The support leg 200 is connected to the corner connecting member 130. The support leg 200 is provided with a slidable sliding member 400. The first armrest frame 110 and the second armrest frame 120 are respectively connected to the same sliding member 400 via the connecting rod 140. The first armrest frame 110 and the second armrest frame 120 are passively connected via a connecting member 20.

[0119] When the child carrier needs to be folded, referring to Figure 7, the connecting member 115a of the first movable assembly 11a is pressed in direction MD2, thereby driving the two movable locking members 113 of the first movable assembly 11a to move from the movable lock position shown in Figure 7 to the movable unlock position shown in Figure 8. At the same time, the second movable locking member 113b of the first movable assembly 11a is driven via the connecting member 20 to move the second movable locking member 113b of the second movable assembly 11b to the movable unlock position, and the connecting member 115b is passively connected to the two movable locking members 113 to drive the first movable locking member 113a of the second movable assembly 11b to move to the movable unlock position. In other words, by operating the connecting member 115a of the first movable assembly 11a, the two movable connection assemblies 11 can be switched to the unlocked state synchronously. Therefore, when it is necessary to fold the child carrier, the two first armrest frames 110 and the two second armrest frames 120 can be unlocked by simply operating the two operating parts on the two first armrest frames 110, and the two movable connection assemblies 11 can be kept unlocked by continuously pressing the connecting members 115a on the two first armrest frames 110. At this time, when a downward force in direction MD2 is applied to the pivot base 111 of any of the first armrest frames 110, the sliding member 400 drives the two first armrest frames 110 and the two second armrest frames 120 to fold synchronously, thereby achieving the folding of the child carrier. It is not necessary to operate each of the four pivot bases 111 one by one.

[0120] The deployment process of the child carrier in this embodiment is basically the same as in the first embodiment, and as the two sets of swivel arms 102a and 102b of each of the two first armrest frames 110, and the two sets of swivel arms 102a and 102b of each of the two second armrest frames 120, gradually rotate to a horizontal position, the movable locking member 113 gradually moves to the movable locking position. These details will not be described repeatedly in this specification.

[0121] According to a third embodiment of the present application, a bracket connection structure 1 and a child carrier including the bracket connection structure 1 are provided.

[0122] Figures 16 to 20 are schematic diagrams of a bracket connection assembly 10 of a bracket connection structure 1 according to a third embodiment of the present application. The bracket connection assembly 10 includes a rotary connection assembly 12. The rotary connection assembly 12 includes a rotary base 121, a first rotary arm 122a, a second rotary arm 122b, and a rotary locking member 123. The rotary locking member 123 functions as a locking member of the bracket connection assembly 10. The first rotary arm 122a is pivotably connected to the rotary base 121. The second rotary arm 122b is pivotably connected to the rotary base 121. The first rotary arm 122a and the second rotary arm 122b each have an extended position (see Figure 18) and a folded position (see Figure 19). When the rotation locking member 123 is in the rotation unlocked position, the rotational connection assembly 12 is in an unlocked state, the first rotation arm 122a is rotatable relative to the rotation base 121, and the second rotation arm 122b is rotatable relative to the rotation base 121. When the rotation locking member 123 is in the rotation locked position, the rotational connection assembly 12 is in a locked state, and the rotation of the first rotation arm 122a relative to the rotation base 121 is restricted. In some embodiments not shown, the rotational connection assembly 12 may not have a second rotation arm 122b, and the application is not limited thereto.

[0123] As shown in Figures 16 and 17, the rotating base 121 includes a housing groove 1212 configured to accommodate a rotating locking member 123. The housing groove 1212 is defined by an upper wall 1214 and a pair of side walls 1213 connected to both sides of the upper wall 1214, respectively. One end of the rotating arm 122 is housed in the housing groove 1212 and pivotally connected to the pair of side walls 1213 of the rotating base 121 via a pin shaft (not shown), which may be, for example, a rivet, screw, bolt. The second rotating arm 122b is closer to the upper wall 1214 of the pivot base 111 than the first rotating arm 122a. That is, the second rotating arm 122b is located above the first rotating arm 122a.

[0124] In one embodiment, referring to Figure 20, a first rotating arm 122a and a second rotating arm 122b are pivotally connected to the side wall 1213 of the rotating base 121 via pin shafts (which may be rivets, screws, bolts, etc.). The axis of rotation of the first rotating arm 122a relative to the rotating base 121 is Y1-Y1, and the axis of rotation of the second rotating arm 122b relative to the rotating base 121 is Y2-Y2. The axis of rotation Y1-Y1 and Y2-Y2 are substantially parallel to each other, and the axis of rotation Y2-Y2 is located above the axis of rotation Y1-Y1. A rotation locking member 123 is rotatably positioned on the rotating base 121 and is switchable between a rotation unlocked position and a rotation locked position.

[0125] As shown in Figures 17 and 20, the rotation locking member 123 is provided with a pivot hole 1234. A pivot shaft (not shown) passes through the pivot hole 1234 and is connected to a pair of side walls 1213 of the rotation base 121. The pivot shaft may be a projection provided on the side wall of the rotation base 121, or a pin connected to the side wall of the rotation base 121. The pivot axis on which the rotation locking member 123 pivots relative to the rotation base 121 is RR. The pivot axis RR is substantially parallel to the rotation axis Y1-Y1 or rotation axis Y2-Y2. The rotation locking member 123 is provided with a hook portion 1238. The hook portion 1238 forms an engagement recess 1231. The first rotation arm 122a is provided with an engagement projection 1221. When the rotation locking member 123 is in the rotation lock position, the engagement projection 1221 engages with the engagement recess 1231. When the rotation locking member 123 is in the rotation unlock position, the engaging projection 1221 disengages from the engaging recess 1231. In some embodiments, the rotation locking member 123 is provided with an engaging recess 1231 on the side facing the first rotating arm 122a. The engaging projection 1221 is formed at one end of the first rotating arm 122a. The first rotating arm 122a is further provided with an engaging surface 1222. When the rotation locking member 123 is in the rotation lock position, one end of the first rotating arm 122a is housed in the engaging recess 1231, and the engaging surface 1222 can abut against the side wall of the engaging recess 1231. By providing the engaging surface 1222, the contact area between the first rotating arm 122a and the engaging recess 1231 is increased, allowing the first rotating arm 122a and the rotation locking member 123 to engage more firmly. As shown in Figures 17 to 19, the engagement surface 1222 includes a concave surface formed by recessing the side surface of one end of the first rotating arm 122a. In some embodiments, the hook portion 1238 of the rotating locking member 123 is further provided with a wedge-shaped surface 1239. When the rotating connection assembly 12 switches from the unlocked state shown in Figure 19 to the locked state shown in Figure 17, one end of the first rotating arm 122a presses against the wedge-shaped surface 1239 and rotates the rotating locking member 123, thereby enabling one end of the first rotating arm 122a to engage with the engagement recess 1231.According to the bracket connection assembly 10 of the third embodiment of the present application, a rotation locking member 123 is pivotably mounted on the rotation base 121, and the rotation locking member 123 can be switched between a rotation lock position and a rotation unlock position, thereby restricting or allowing rotation of the first rotation arm 122a relative to the rotation base 121.

[0126] In some embodiments, as shown in Figure 17, the rotary connection assembly 12 includes two first rotary arms 122a, two second rotary arms 122b, and two rotary locking members 123. The two first rotary arms 122a are pivotably connected to the rotary base 121 at portions near their opposing ends. The two rotary locking members 123 are each configured to engage with the first rotary arms 122a, restricting or allowing the rotation of the first rotary arms 122a. The two rotary locking members 123 are passively connected to each other. Specifically, each of the two rotary locking members 123 is provided with a plurality of meshing teeth 1232 that mesh with each other. The meshing teeth 1232 drive the other rotary locking member 123 to rotate synchronously when one rotary locking member 123 rotates, so that the two rotary locking members 123 switch synchronously between a rotary lock position and a rotary unlock position.

[0127] As shown in Figures 17 to 19, the rotary connection assembly 12 further includes a rotary reset member 124. The rotary reset member 124 biases one rotary locking member 123 to rotate to the rotary lock position and further drives the other rotary locking member 123 to rotate to the rotary lock position via the meshing teeth 1232. The rotary reset member 124 is, for example, a torsion spring. The rotary reset member 124 is fitted onto the pivot shaft of one of the rotary locking members 123. Furthermore, one end of the rotary reset member 124 abuts against the rotary locking member 123, and the other end of the rotary reset member 124 abuts against the pin shaft (not shown) of the first rotary arm 122a. In this embodiment, the rotary reset member 124 is provided on only one of the rotary locking members 123, but in other embodiments, the rotary reset member 124 may be provided on each of the two rotary locking members 123, and the present application is not limited thereto.

[0128] Referring to Figures 16, 20, and 21, an operating member 125 according to a third embodiment of the present application is schematically shown. The rotary connection assembly 12 is provided with the operating member 125. The operating member 125 is rotatably positioned on the rotary base 121 and is passively connected to the rotary locking member 123, and drives the rotary locking member 123 to switch between a rotary locked position and a rotary unlocked position. In this embodiment, one operating member 125 is provided. The operating member 125 is passively connected to one of the rotary locking members 123, and when the operating member 125 is rotated, this rotary locking member 123 is driven to rotate, and furthermore, the meshing teeth 1232 of the two rotary locking members 123 drive the other rotary locking member 123 to rotate synchronously. This makes it possible to synchronously switch the two rotary locking members 123 between a rotary locked position and a rotary unlocked position.

[0129] In one embodiment, as shown in Figures 20 and 21, a pivot projection 1235 is provided on one of the two rotating locking members 123. A recess 1236 is provided on the pivot projection 1235. A connecting post 1251 is provided on the operating member 125. A pivot recess 1252 is formed on the connecting post 1251, configured to accommodate the pivot projection 1235. A protrusion 1253 is provided on the pivot recess 1252, configured to engage with the recess 1236. The protrusion 1253 extends inward from the side wall of the pivot recess 1252. Multiple protrusions 1253 are provided. The multiple protrusions 1253 are evenly distributed on the side wall of the pivot recess 1252. Multiple recesses 1236 are provided. The number of recesses 1236 is equal to or greater than the number of protrusions 1253. A through hole 1215 is provided on the side wall of the rotating base 121. The pivot projection 1235 may be connected to the operating member 125 by passing through the through hole 1215. In other embodiments, the connecting post 1251 may be connected to the rotation locking member 123 by passing through the through hole 1215. As shown in Figures 20 and 21, the pivot projection 1235 is at least partially housed within the pivot recess 1252. The protrusion 1253 engages with the recess 1236, thereby driving the operating member 125 to rotate the rotation locking member 123 when the operating member 125 rotates. To prevent the operating member 125 from separating from the rotation locking member 123, the rotation locking member 123 and the operating member 125 are further connected to each other by fasteners (not shown). The fasteners may extend through the central holes of both the pivot projection 1235 and the pivot recess 1252. The fasteners may be screws, rivets, etc.

[0130] According to the bracket connection structure 1 of this embodiment, the operating member 125 is operated to drive one rotation lock member 123 to rotate, and further, the other rotation lock member 123 to rotate via the meshing of the meshing teeth 1232, thereby enabling synchronous switching of the two rotation lock members 123 between the rotation unlock position and the rotation lock position. Thus, a bracket connection structure 1 is provided that is simple in structure and easy to operate.

[0131] Figure 22 is a schematic diagram of a child carrier according to a third embodiment of the present application. The child carrier includes a bed frame 1000 and an enclosure (not shown). The enclosure may be made of fabric. The enclosure is connected to the bed frame 1000 and defines a dwelling space for the child carrier, in which the child may sleep or play. The bed frame 1000 includes an armrest frame 100 and a plurality of support legs 200 configured to support the armrest frame 100. The armrest frame 100 includes a pair of first armrest frames 110 and a pair of second armrest frames 120 adjacent to the first armrest frames 110. The child carrier in this embodiment has at least the following configurations that differ from the child carriers according to the first and second embodiments.

[0132] As shown in Figure 22, the bed frame 1000 is provided with a bracket connection assembly 10. The bracket connection assembly 10 includes a plurality of swivel connection assemblies 12. The plurality of swivel connection assemblies 12 function as a first armrest frame 110 and a second armrest frame 120, respectively. Specifically, the two first swivel arms 102a and two second swivel arms 102b of each first armrest frame 110 correspond to the two first swivel arms 122a and two second swivel arms 122b of the swivel connection assembly 12, respectively. The connection base 101 of each first armrest frame 110 corresponds to the swivel base 121 of the swivel connection assembly 12. The first swivel arm 122a and the second swivel arm 122b, located on the same side of the swivel base 121, are both connected to the same corner connecting member 130 of the armrest frame 100. Therefore, when the swivel connection assembly 12 is locked, the first swivel arm 122a is restricted from rotating relative to the swivel base 121, thereby restricting the second swivel arm 122b from rotating relative to the swivel base 121. The two sets of first swivel arms 102a and second swivel arms 102b of each second armrest frame 120 correspond to the two sets of swivel arms 122 of the swivel connection assembly 12 (i.e., the first swivel arm 122a and the second swivel arm 122b). The connection base 101 of each second armrest frame 120 functions as the swivel base 121 of the swivel connection assembly 12. According to a third embodiment of the present application, a bracket connection structure 1 is further provided. The bracket connection structure 1 includes a plurality of bracket connection assemblies 10, a corner connection member 130, a support leg 200, and a plurality of connecting rods 140. The plurality of bracket connection assemblies 10 are connected to the corner connection member 130. The support leg 200 is connected to the corner connection member 130. At least one swivel arm 102a / 102b of each bracket connection assembly 10 is connected to a sliding structure via a connecting rod 104, so that when at least one swivel arm of one bracket connection assembly 10 rotates, at least one swivel arm of another bracket connection assembly 10 is driven to rotate by the connecting rod 140 and the sliding structure.In this embodiment, the multiple bracket connection assemblies 10 are adjacent first armrest frames 110 and second armrest frames 120, respectively. The sliding structure includes a sliding member 400 that is slidably positioned on the support legs 200. The first armrest frames 110 and the second armrest frames 120 are each connected to the same sliding member 400 via a connecting rod 140. In other embodiments not shown, the sliding structure may include, for example, a sliding groove and a sliding pin passing through the sliding groove. The first armrest frames 110 and the second armrest frames 120 may also be connected to the same sliding pin 400 via the connecting rod 140, and the application is not limited thereto.

[0133] When the child carrier needs to be folded, the rotating operating member 125 needs to be rotated. Since the two rotating locking members 123 do not lock or unlock along the same direction of rotation, the user's operation on the operating member 125 is determined by the rotating locking member 123 connected to the operating member 125. In this embodiment, with reference to Figures 16 and 20, an example is shown in which the operating member 125 is connected to the rotating locking member 123 on the left side of Figure 16. By applying a counterclockwise force to the operating member 125 of the rotating connection assembly 12, which is located on a pair of first armrest frames 110 (or second armrest frame 120), and rotating the operating member 125 counterclockwise, one of the rotating locking members 123 is driven to rotate counterclockwise, and further, through the meshing of the meshing teeth 1232 of the two rotating locking members 123, the other rotating locking member 123 is driven to rotate clockwise. As a result, the engaging recesses 1231 of the two rotation locking members 123 rotate away from their respective first rotating arms 122a. If the operating member 125 is continued to rotate, the engaging recesses 1231 of the two rotation locking members 123 completely disengage from their respective ends on the first rotating arms 122a, i.e., both rotation locking members 123 are in the rotation unlocked position. In this case, the rotation connection assembly 12 located on the second armrest frame 120 (or the first armrest frame 110) remains locked, and the sliding member 400 cannot move downward (i.e., away from the corner connection member 130), or can only move a very small distance. Therefore, the two first swivel arms 102a and the two second swivel arms 102b of the first armrest frame 110 (or second armrest frame 120) can be folded only slightly, thereby restricting one end of the first rotating arm 122a located on the first armrest frame 110 (or second armrest frame 120) to the rotation unlocked position, respectively.Subsequently, the two rotation locking members 123 of the rotation connection assembly 12 are rotated to the rotation unlocked position by rotating the operating member 125 of the rotation connection assembly 12, which is located on the other pair of second armrest frames 120 (or first armrest frame 110). In this case, the first armrest frame 110 and the second armrest frame 120 can be folded simultaneously, and the connecting rod 140 moves the sliding member 400 downward, causing the multiple support legs 200 to move closer to each other simultaneously along directions D1 and D2, thereby enabling the child carrier to be folded.

[0134] In this embodiment, since the first rotating arm 122a does not interfere with the rotation locking member 123 after folding, when the child carrier is in the folded state, the rotation locking member 123 rotates from the rotation unlocked position to the rotation locked position due to the elastic restoring force of the rotation resetting member 124.

[0135] When it is necessary to deploy the child carrier, the two first rotating arms 122a and two second rotating arms 122b of one of the first armrest frames 110 (or second armrest frame 120) are rotated from the folded position shown in Figure 19 to the deployed position shown in Figure 17, and the connecting rod drives the sliding member 400 upward (i.e., toward the corner connecting member 130). This allows another connecting rod 140 connected to the sliding member 400 to drive the two first rotating arms 122a and two second rotating arms 122b of the second armrest frame 120 (or first armrest frame 110) to rotate from the folded position to the deployed position. In this way, the two first armrest frames 110 and two second armrest frames 120 of the child carrier's armrest frame 100 are synchronously switched from the folded state to the deployed state. As the two first rotating arms 122a and the two second rotating arms 122b rotate from the folded position shown in Figure 19 to the deployed position shown in Figure 17, the ends of the two first rotating arms 122a each press against the wedge-shaped surface 1239 of the rotation locking member 123, thereby rotating each of the two rotation locking members 123 from the rotation lock position to the rotation unlock position. When the two first rotating arms 122a and the two second swivel arms 122b each rotate to the deployed position shown in Figure 18, the ends of the first rotating arms 122a just disengage from the wedge-shaped surface 1239 of the rotation locking member 123. In this case, the rotation locking member 123 is in the rotation unlock position. Due to the elastic restoring force of the rotation reset member 124, the rotation lock member 123 rotates from the rotation unlock position shown in Figure 18 to the rotation lock position shown in Figure 17, thereby engaging the end of each first rotation arm 122a with the corresponding engagement recess 1231 of the rotation lock member 123. In this way, the child carrier is deployed.

[0136] According to a fourth embodiment of the present application, a bracket connection structure 1 and a child carrier including the bracket connection structure are provided.

[0137] Figures 23 to 28 are schematic diagrams of a bracket connection structure 1 according to a fourth embodiment of the present application. The bracket connection structure 1 includes two bracket connection assemblies 10 and a connecting member 20 that is passively connected to the two bracket connection assemblies 10. Both of the two bracket connection assemblies 10 are rotary connection assemblies 12. The two rotary connection assemblies 12 are a first rotary assembly 12a and a second rotary assembly 12b, respectively.

[0138] Each rotary connection assembly 12 includes a rotary base 121, at least one first rotary arm 122a, at least one second rotary arm 122b, at least one rotary locking member 123, and a rotary reset member 124 that biases the rotary locking member 123 to rotate toward the rotary lock position. In this embodiment, each rotary connection assembly 12 is provided with two first rotary arms 122a, two second rotary arms 122b, and two rotary locking members 123. The two first rotary arms 122a act on different rotary locking members 123. Each rotary locking member 123 is provided with an engaging recess 1231. Engaging projections 1221 are formed at each of the two first rotary arms 122a, at opposite ends. When the rotation locking member 123 is in the rotation lock position, the rotation connection assembly 12 is locked, and the engaging projections 1221 of the two first rotation arms 122a engage with the engaging recesses 1231 of the rotation locking member 123, thereby restricting the two first rotation arms 122a from rotating relative to the rotation base 121. When the rotation locking member 123 is in the rotation unlock position, the rotation connection assembly 12 is unlocked, and the two first rotation arms 122a are rotatable relative to the rotation base 121, while the two second rotation arms 122b are rotatable relative to the rotation base 121.

[0139] In one embodiment, as shown in Figure 23, the two rotation locking members 123 are a first rotation locking member 123a on the right and a second rotation locking member 123b on the left, respectively. The two rotation locking members 123 are passively connected to each other. Specifically, each of the two rotation locking members 123 is provided with meshing teeth 1232. The two rotation locking members 123 mesh with each other via the meshing teeth 1232, and the rotation of one rotation locking member 123 drives the other rotation locking member 123 to rotate synchronously. This allows the two rotation locking members 123 to switch synchronously between a rotation lock position and a rotation unlock position. The rotation reset member 124 is, for example, a torsion spring. One rotation reset member 124 is provided. The rotation reset member 124 abuts against one of the rotation locking members 123, for example, the first rotation locking member 123a.

[0140] The bracket connection structure 1 according to this embodiment has at least the following configurations that differ from the bracket connection structure 1 according to the third embodiment.

[0141] As shown in Figures 23 to 24, the first rotary assembly 12a is provided with an operating member 125, while the second rotary assembly 12b is not. The operating member 125 is rotatably positioned on the rotary base 121 of the first rotary assembly 12a and is passively connected to a rotary locking member 123, driving the rotary locking member 123 to switch between a rotary lock position and a rotary unlock position. The operating member 125 is passively connected to one of the rotary locking members 123 of the first rotary assembly 12a, and when the operating member 125 is operated to rotate, this rotary locking member 123 is driven to rotate, and the other rotary locking member 123 is also driven to rotate synchronously via the meshing of the meshing teeth 1232 of the two rotary locking members 123. As a result, the two rotary locking members 123 switch synchronously between a rotary lock position and a rotary unlock position. In other embodiments not shown, the rotary connection assembly 12 may be provided with only one rotary locking member 123, and the present application is not limited thereto.

[0142] As shown in Figure 23, both ends of the connecting member 20 are connected to the rotation lock members 123 of the two rotation connection assemblies 12, respectively. When the operating member 125 is operated to rotate, the rotation lock member 123 of the first rotation assembly 12a is driven to rotate, and the connecting member 20 also drives the rotation lock member 123 of the second rotation assembly 12b to rotate. As a result, the rotation lock members 123 of the two rotation connection assemblies 12 rotate synchronously, enabling synchronous switching of the rotation lock members 123 of the two rotation connection assemblies 12 between the rotation lock position and the rotation unlock position.

[0143] Figure 29 is a schematic diagram of a connecting member 20 according to a fourth embodiment of the present application. The connecting member 20 includes a tension rope 21, a first latch end 22a and a second latch end 22b positioned at both ends of the tension rope 21, and a sheath 23 that covers the outside of the tension rope 21. The first latch end 22a and the second latch end 22b have basically the same structure. The first latch end 22a and the second latch end 22b are substantially cylindrical. Both ends of the tension rope 21 are connected to the side surfaces of the first latch end 22a and the second latch end 22b, respectively. The sheath 23 is positioned outside the tension rope 21. At least a portion of the tension rope 21, the first latch end 22a, and the second latch end 22b all extend outside the sheath 23. One end of the sheath 23 is provided with a first connecting end 24a through which the tension rope 21 can pass, and the other end of the sheath 23 is provided with a second connecting end 24b through which the tension rope 21 can pass. The first connecting end 24a is restricted by the rotating base 121 of the first rotating assembly 12a, and the second connecting end 24b is restricted by the rotating base 121 of the second rotating assembly 12b, thereby permanently connecting both ends of the sheath 23 to the rotating bases 121 of the two rotating connecting assemblies 12. In this way, the connecting member 20 can be supported on one side, and the ends of the sheath 23 can be fixed on the other side, so that the movement of the sheath 23 does not interfere with the rotation of the rotating lock member 123.

[0144] In one embodiment, as shown in Figures 21, 27, and 28, a connecting frame 129 is provided on the rotating base 121 of the rotating connection assembly 12. The tension rope 21 of the connecting member 20 can extend through the connecting frame 129. The connecting frame 129 is located within the housing groove 1212 of the rotating base 121. The connecting frame 129 is formed by cutting and bending a portion of the side wall 1213 of the pivot base 121 inward (i.e., toward the housing groove). The connecting frame 129 and the rotating base 121 are formed integrally, thereby improving the connection strength between the connecting frame 129 and the rotating base 121 and reducing manufacturing costs. In other embodiments, the connecting frame 129 may be a member fixed to the side wall 1213 of the rotating base 121 by, for example, welding, riveting, or adhesive, and the present application is not limited thereto. Referring further to Figures 23 and 27, the rotating base 121 is provided with two connecting frames 129, the first connecting frame 129a positioned adjacent to the first rotating locking member 123a and the second connecting frame 129b positioned adjacent to the second rotating locking member 123b. The two connecting frames 129 are positioned adjacent to each other on the side of the rotating locking member 123 that is farther away from the engaging recess 1231. The first connecting end 24a of the connecting member 20 engages with the second connecting frame 129b of the first rotating assembly 12a, and the second connecting end 24b of the connecting member 20 engages with the first connecting frame 129a of the second rotating assembly 12b. In other embodiments, the first rotating assembly 12a may be provided with only one connecting frame 129, i.e., the second connecting frame 129b. Similarly, the second rotation assembly 12b may also be provided with only one connecting frame 129, i.e., the first connecting frame 129a. Referring to Figures 23 and 27, in this embodiment, the rotation reset member 124 is fitted onto the pivot shaft of the first rotation lock member 123a, with one end of the rotation reset member 124 in contact with the first rotation lock member 123a and the other end of the rotation reset member 124 engaging with the first connecting frame 129a.Alternatively, the rotation reset member 124 may be fitted onto the pivot shaft of the second rotation lock member 123b, with one end of the rotation reset member 124 abutting against the second rotation lock member 123b and the other end of the rotation reset member 124 engaging with the second connecting frame 129b. Note that in this embodiment, the end of the connecting frame 129 is open. To prevent one end of the rotation reset member 124 from slipping out of the end of the connecting frame 129, the connecting frames 129 on the two side walls 1213 of the rotation base 121 can be positioned facing each other, restricting one end of the rotation reset member 124 between the two connecting frames 129 (see Figures 27 and 28). In other embodiments, the two connecting frames 129 may not be used to restrict one end of the rotational reset member 124, and furthermore, a locking structure (e.g., a hook-shaped locking structure) may be provided at the end of the connecting frame 129 to prevent the end of the rotational reset member 124 from slipping out of the connecting frame 129. In another embodiment (see Figure 17), instead, one end of the rotational reset member 124 abuts against the first rotational locking member 123a, and the other end of the rotational reset member 124 abuts against the pin shaft (not shown) of the first rotational arm 122a.

[0145] Figure 30 is a schematic diagram of the first rotation locking member 123a of a rotational connection assembly 12 according to a fourth embodiment of the present application. Referring to Figures 23 and 29, the first rotation locking members 123a of the two rotational connection assemblies 12 are each provided with an engagement groove 1233. The first latch end 22a and the second latch end 22b engage with the corresponding engagement groove 1233. Specifically, the engagement groove 1233 is provided on the side of the rotation locking member 123 that is farther from the engagement recess 1231. The first rotation locking member 123a of the first rotational assembly 12a is provided with an engagement groove 1233, and the first rotation locking member 123a of the second rotational assembly 12b is provided with an engagement groove 123. The first latch end 22a engages with the engagement groove 1233 of the first rotation locking member 123a of the first rotation assembly 12a, and the second latch end 22b engages with the engagement groove 1233 of the first rotation locking member 123a of the second rotation assembly 12b. The first latch end 22a and the second latch end 22b have the same structure. The engagement groove 1233 includes a first groove portion 12331 and a second groove portion 12332 to which the tension rope 21 extends. The first groove portion 12331 communicates with the second groove portion 12332. The direction of extension of the first groove portion 12331 is at an angle with respect to the direction of extension of the second groove portion 12332. The first latch end 22a or the second latch end 22b is configured to engage with the first groove portion 12331. In this embodiment, the second rotation locking member 123b of the two rotation connection assemblies 12 does not have an engagement groove 1233. In some embodiments, the second rotation locking member 123b of the first rotation assembly 12a is provided with a retaining groove 1237. Both ends of the retaining groove 1237 are open ends, allowing the pull rope 21 to pass through. When the first latch end 22a or the second latch end 22b is engaged with the corresponding rotation locking member 123, the pull rope 21 extends sequentially through the engagement groove 1233 of the first rotation locking member 123a of the first rotation assembly 12a, the retaining groove 1237 of the second rotation locking member 123b of the first rotation assembly 12a, and the engagement groove 1233 of the first rotation locking member 123a of the second rotation assembly 12b.The operating member 125 is passively connected to the second rotation locking member 123b of the first rotation assembly 12a. The second rotation locking member 123b of the first rotation assembly 12a is driven to rotate by the operating member 125, and the rotation locking member 123a of the first rotation assembly 12a is driven by the meshing of the two rotation locking members 123 of the first rotation assembly 12a. Furthermore, the first rotation locking member 123a of the second rotation assembly 12b is driven by the connecting member 20, thereby driving the second rotation locking member 123b of the second rotation assembly 12b to rotate by the meshing of the two rotation locking members 123 of the second rotation assembly 12b. The rotation locking members 123 of the two rotation connection assemblies 12 rotate synchronously, and the rotation locking members 123 of the two rotation connection assemblies 12 switch synchronously between the rotation lock position and the rotation unlock position.

[0146] According to the bracket connection structure 1 of this embodiment, the two rotary connection assemblies 12 are driven by the connecting member 20 and switch synchronously between a locked state and an unlocked state, resulting in a simple structure and easy operation.

[0147] Figure 31 is a schematic diagram of a child carrier according to a fourth embodiment of the present application. The child carrier includes a bed frame 1000 and an enclosure (not shown). The enclosure may be made of fabric. The enclosure is connected to the bed frame 1000 to define the accommodation space of the child carrier, in which the child may sleep or play. The bed frame 1000 includes a plurality of armrest frames 100 and a plurality of support legs 200 configured to support the armrest frames 100. The plurality of armrest frames 100 include a pair of first armrest frames 110 and a pair of second armrest frames 120 adjacent to the first armrest frames 110. The child carrier in this embodiment has at least the following configurations that differ from the child carriers in the first, second, and third embodiments.

[0148] As shown in Figure 31, the bed frame 1000 is provided with a bracket connection assembly 10 of the bracket connection structure 1 in the fourth embodiment. The bracket connection assembly 10 includes a first swivel assembly 12a and a second swivel assembly 12b. The first swivel assembly 12a functions as the first armrest frame 110, and the second swivel assembly 12b functions as the second armrest frame 120. Specifically, the two sets of first swivel arms 102a and second swivel arms 102b of the first armrest frame 110 correspond to the two sets of swivel arms 122 of the first swivel assembly 12a (i.e., the first swivel arm 122a and the second swivel arm 122b), respectively. The connection base 101 of each first armrest frame 110 corresponds to the swivel base 121 of the first swivel assembly 12a. The two sets of first swivel arms 102a and second swivel arms 102b of the second armrest frame 120 correspond to the two sets of rotating arms 122 (i.e., the first rotating arm 122a and the second rotating arm 122b) of the second rotating assembly 12b, respectively. The connecting base 101 of each second armrest frame 120 corresponds to the rotating base 121 of the second rotating assembly 12b. In this embodiment, the bracket connection structure 11 further includes a corner connecting member 130, a support leg 200, and a connecting rod 140. The first armrest frame 110 and the second armrest frame 120 are connected to the corner connecting member 130. The support leg 200 is connected to the corner connecting member 130. The support leg 200 is provided with a slidable sliding member 400. The first armrest frame 110 and the second armrest frame 120 are each connected to the same sliding member 400 via corresponding connecting rods 140. The first armrest frame 110 and the second armrest frame 120 are passively connected to each other via connecting member 20.

[0149] Compared to the third embodiment, when it is necessary to fold the child carrier in this embodiment, only the operating member 125 of the first rotation assembly 12a located on the first armrest frame 110 needs to be operated. Subsequently, the two rotation locking members 123 of the first rotation assembly 12a and the two rotation locking members 123 of the second rotation assembly 12b may be rotated synchronously from the rotation lock position to the rotation unlock position via the connecting member 20, thereby achieving the folding of the child carrier.

[0150] In the fourth embodiment, the deployment process of the child carrier is essentially the same as in the third embodiment, so a detailed explanation will not be repeated here.

[0151] According to a fifth embodiment of the present application, a bracket connection structure 1 and a child carrier including the bracket connection structure 1 are provided.

[0152] Figures 32 to 37 are schematic diagrams of a bracket connection structure 1 according to a fifth embodiment of the present application. The bracket connection structure 1 includes two bracket connection assemblies 10 and a connecting member 20 connected between the two bracket connection assemblies 10. The two bracket connection assemblies 10 include a movable connection assembly 11 and a rotary connection assembly 12. The movable connection assembly 11 has essentially the same configuration as the first movable assembly 11a in the second embodiment. The rotary connection assembly 12 has the same configuration as the second rotary assembly 12b in the fourth embodiment.

[0153] As shown in Figures 33, 35, and 37, the movable locking member 11 includes a pivot base 111, two movable locking members 113 attached to the pivot base 111, and two sets of first pivot arms 112a and two sets of second pivot arms 112b pivotally connected to the pivot base 111. The pivot base 111 is provided with a sliding groove 1111. The movable locking members 113 are inserted and fitted into the sliding groove 1111 via connecting pins (not shown). The connecting pins are, for example, rivets, screws, bolts, etc. Specifically, the movable locking member 113 is provided with a plurality of connecting holes 1134. The connecting pins pass through the sliding groove 1111 and the connecting holes 1134, movably connecting the movable locking member 113 to the pivot base 111. The pivot base 111 and the movable locking member 113 are connected via a connecting pin, which makes the connection between the pivot base 111 and the movable locking member 113 stronger and more reliable, and facilitates disassembly and assembly. In other embodiments not shown, the locking member 103 may be provided with a sliding groove 1111, and correspondingly the pivot base 111 may be provided with a connecting projection 1133 (similar to the connecting projection 1133 in Figure 13) or a connecting pin, or the connecting projection 1133 or connecting pin may be inserted and fitted into the sliding groove 1111 and movable along the sliding groove 1111, and the present invention is not limited thereto.

[0154] As shown in Figures 32 and 33, one end of the connecting member 20 is connected to the second movable locking member 113b of the movable connection assembly 11, and the other end of the connecting member 20 is connected to the first rotary locking member 123a of the rotary connection assembly 12. When the second movable locking member 113b moves from the movable lock position to the movable unlock position, the first rotary locking member 123a is driven by the connecting member 20 to rotate to the rotary unlock position, and furthermore, the meshing of the meshing teeth 1232 between the two rotary locking members 123 drives the second rotary locking member 123b to rotate further to the rotary unlock position. This enables synchronous switching from the locked state to the unlocked state of the movable connection assembly 11 and the rotary connection assembly 12.

[0155] Referring to Figure 32, the rotation reset member 124 is fitted onto the pivot shaft of the first rotation lock member 123a. One end of the rotation reset member 124 abuts against the first rotation lock member 123a, and the other end of the rotation reset member 124 abuts against the pin shaft (not shown) of the first rotation arm 122a. In other embodiments (see Figure 27), instead, one end of the rotation reset member 124 abuts against the first rotation lock member 123a, and the other end of the rotation reset member 124 engages with the first connecting frame 129a.

[0156] Figure 38 is a schematic diagram of a connecting member 20 according to a fifth embodiment of the present application. The connecting member 20 includes a tension rope 21, a sheath 23 placed over the outside of the tension rope 21, a first latch end 22a and a second latch end 22b connected to both ends of the tension rope 21, and a first connecting end 24a and a second connecting end 24b located at both ends of the sheath 23. In this embodiment, the first latch end 22a is substantially columnar, and the tension rope 21 is connected to the end face of the first latch end 22a. The second latch end 22b is substantially columnar, and the tension rope 21 is connected to the side surface of the second latch end 22b.

[0157] In one embodiment, as shown in Figures 32 to 33, the pivot base 111 of the movable connection assembly 11 is provided with two fixed frames 119, which are a first fixed frame 119a and a second fixed frame 119b. Each fixed frame 119 is formed by cutting up a corresponding portion of one of the two side walls 1115 of the pivot base 111 and folding this portion inward. The rotating base 121 of the rotating connection assembly 12 is provided with two connection frames 129, which are a first connection frame 129a and a second connection frame 129b. The first latch end 22a engages with the second connection frame 129b, and the second latch end 22b engages with the first connection frame 129a.

[0158] As shown in Figures 32 to 39, the second movable locking member 113b of the movable connection assembly 11 is provided with an engagement hole 1137. The engagement hole 1137 has a contact portion 1138 inside. The first latch end 22a engages with the contact portion 1138 of the engagement hole 1137. The first rotating locking member 123a of the rotating connection assembly 12 is provided with an engagement groove 1233. The second latch end 22b engages with the engagement groove 1233.

[0159] Figure 40 is a schematic diagram of a child carrier according to a fifth embodiment of the present application. The child carrier includes a bed frame 1000 and an enclosure (not shown). The enclosure may be made of fabric. The enclosure is connected to the bed frame 1000 and defines the accommodation space of the child carrier, in which the child may sleep or play. The bed frame 1000 includes an armrest frame 100 and a plurality of support legs 200 configured to support the armrest frame 100. The armrest frame 100 includes a pair of first armrest frames 110 and a pair of second armrest frames 120 adjacent to the first armrest frames 110. The child carrier in this embodiment has at least the following configurations that differ from the child carriers in the first, second, third, and fourth embodiments.

[0160] As shown in Figure 40, the bed frame 1000 is provided with a bracket connection assembly 10 of the bracket connection structure 1 in the fifth embodiment. The bracket connection assembly 10 includes a movable connection assembly 11 and a rotary connection assembly 12. The movable connection assembly 11 functions as a first armrest frame 110, and the rotary connection assembly 12 functions as a second armrest frame 120. Specifically, the two sets of first swivel arms 102a and the two sets of second swivel arms 102b of each first armrest frame 110 correspond to the two sets of pivot arms 112 of the movable connection assembly 11 (i.e., the first pivot arm 112a and the second pivot arm 112b), respectively. The connection base 101 of the first armrest frame 110 corresponds to the rotary base 111 of the movable connection assembly 11. The two sets of first swivel arms 102a and the two sets of second swivel arms 102b of the second armrest frame 120 correspond to the two sets of rotating arms 122 of the rotating connection assembly 12 (i.e., the first rotating arm 122a and the second rotating arm 122b), respectively. The connecting base 101 of each second armrest frame 120 corresponds to the rotating base 121 of the rotating connection assembly 12. In this embodiment, the bracket connection structure 1 further includes a corner connecting member 130, support legs 200, and connecting rods 140. The first armrest frame 110 and the second armrest frame 120 are connected to the corner connecting member 130. The support legs 200 are connected to the corner connecting member 130. The support legs 200 are provided with sliding members 400 that can slide. The first armrest frame 110 and the second armrest frame 120 are each connected to the same sliding member 400 via the corresponding connecting rods 140. The first armrest frame 110 and the second armrest frame 120 are passively connected to each other via a connecting member 20.

[0161] In the fifth embodiment, the folding and unfolding processes of the child carrier are the same as those in the second embodiment, and a detailed explanation will not be repeated here.

[0162] A sixth embodiment of the present application provides a bracket connection structure 1 and a child carrier including the bracket connection structure 1. The bracket connection structure 1 includes two bracket connection assemblies 10 and a connecting member 20 connected between the two bracket connection assemblies 10. The two bracket connection assemblies 10 include a movable connection assembly 11 and a rotary connection assembly 12. The configuration of the rotary connection assembly 12 may be the same as the configuration of the first rotary assembly 12a in the fourth embodiment, and the configuration of the movable connection assembly 11 may be the same as the configuration of the second movable assembly 11b in the second embodiment. These details will not be repeated here.

[0163] The child carrier according to the sixth embodiment of the present application has at least the following configurations that differ from the child carrier in the fifth embodiment. In this embodiment, the movable connection assembly 11 is not provided with an operating unit 1153. The movable connection assembly 11 is located on the second armrest frame 120 of the child carrier. The rotary connection assembly 12 is provided with an operating member 125. The rotary connection assembly 12 is located on the first armrest frame 110 of the child carrier.

[0164] In the sixth embodiment, the folding and unfolding processes of the child carrier are the same as those in the fourth embodiment, and a detailed explanation will not be repeated here.

[0165] In the above-described embodiment, the movable connection assembly 11 moves along a straight line between the movable unlock position and the movable lock position, specifically along a horizontal straight line. In other embodiments, the movable connection assembly 11 may move along an inclined straight line. In yet another embodiment, the movable connection assembly 11 may move along a circular arc or other trajectory between the movable unlock position and the movable lock position, and the present application is not limited thereto.

[0166] According to a seventh embodiment of the present application, a bracket connection structure 1 and a child carrier including the bracket connection structure 1 are provided.

[0167] Figure 41 is a schematic diagram of a child carrier according to the seventh embodiment of the present application. Figures 42 to 44 are schematic diagrams of a bracket connection structure 10 according to the seventh embodiment of the present application. This embodiment has at least the following configurations that differ from the first, second, third, fourth, fifth, and sixth embodiments.

[0168] As shown in Figure 41, the child carrier includes a bed frame 1000. The bed frame 1000 is provided with a bracket connection structure 1. The bracket connection structure 1 includes at least one bracket connection assembly 10. In this embodiment, the bracket connection assembly 10 includes a first rotation assembly 12a and a second rotation assembly 12b. The first rotation assembly 12a is passively connected to the second rotation assembly 12b via a connecting member 20. The first rotation assembly 12a functions as a first armrest frame 110, and the second rotation assembly 12b functions as a second armrest frame 120. In other embodiments not shown, the bracket connection structure 1 may further include a rotation connection assembly 12, and the present application is not limited thereto. For convenience of explanation, one rotation connection assembly 12 (the second rotation assembly 12b) will be described below as an example.

[0169] As shown in Figures 41 and 42, the rotary connection assembly 12 includes a rotary base 121, a first rotary arm 122a, a second rotary arm 122b, and a rotary locking member 123. The rotary locking member 123 functions as a locking member for the bracket connection assembly 10. The rotary locking member 123 is provided with an engaging recess 1231. The first rotary arm 122a is pivotably connected to the rotary base 121 via a pin shaft 128a (e.g., a rivet, screw, bolt, etc.). The second rotary arm 122b is pivotably connected to the rotary base 121 via a pin shaft 128b. The first rotary arm 122a and the second rotary arm 122b each have an extended position and a folded position. When the rotation locking member 123 is in the rotation unlocked position, the rotation connection assembly 12 is in an unlocked state, the first rotation arm 122a is rotatable relative to the rotation base 121, and the second rotation arm 122b is rotatable relative to the rotation base 121. When the rotation locking member 123 is in the rotation locked position, the rotation connection assembly 12 is in a locked state, and the first rotation arm 122a is restricted from rotating relative to the rotation base 121.

[0170] As shown in Figures 43 to 45, the first rotating arm 122a includes a main rod 1224, an engagement rod 1225, and an extension / reset member 1226. The main rod 1224 is pivotably connected to the rotating base 121 via a pin shaft 128a. An insertion space 12241 is provided in one of the main rod 1224 and the engagement rod 1225, and the other of the main rod 1224 and the engagement rod 1225 is inserted into the insertion space 12241 and at least a portion of it is restricted to the insertion space 12241. The engagement rod 1225 is movable relative to the main rod 1224 and has an extended position and a retracted position. The end of the engagement rod 1225 furthest from the main rod 1224 functions as an engagement projection 1221. In this embodiment, the main rod 1224 is provided with an insertion space 12241, and the end of the engaging rod 1225 opposite to the engaging projection 1221 is inserted into the insertion space 12241. When the first rotating arm 122a is in the folded position, the engaging projection 1221 is separated from the engaging recess 1231, and the engaging rod 1225 is in the extended position. In the process of the first rotating arm 122a switching from the folded position to the deployed position, the rotating lock member 123 presses against the engaging projection 1221, thereby moving the engaging rod 1225 from the extended position to the retracted position. When the first rotating arm 122a switches to the deployed position, the engaging projection 1221 faces the engaging recess 1231, and the engaging rod 1225 moves from the retracted position to the extended position, causing the engaging projection 1221 to engage with the engaging recess 1231. When the engagement rod 1225 is in the extended position, the total length of the first rotating arm 122a (i.e., the sum of the length of the main rod 1224 and the length of the portion of the engagement rod 1225 that protrudes from the main rod 1224) is at its maximum. When the engagement rod 1225 is in the retracted position, the total length of the first rotating arm 122a is at its minimum.

[0171] As shown in Figures 44 and 45, the engaging rod 1225 is provided with a guide groove 12252. The direction of extension of the guide groove 12252 is parallel to the direction of extension of the insertion space 12241. The pin shaft 128a passes through the guide groove 12252 and is confined within the guide groove 12252. That is, both the engaging rod 1225 and the main rod 1224 are pivotably connected to the rotating base 121 via the pin shaft 128a, and the engaging rod 1225 is movably inserted into the insertion space 12241. In this way, the engaging rod 1225 can rotate with the main rod 1224 relative to the rotating base 121 and can also move between an extended position and a retracted position relative to the main rod 1224. In other embodiments not shown, the main rod 1224 is pivotably connected to the rotating base 121 via a pin shaft 128a, the engaging rod 1225 is not pivotably connected to the rotating base 121, the engaging rod 1225 is movably inserted into an insertion space 12241 and at least a portion of it is confined to the insertion space 12241 by other restricting structures, and the present invention is not limited thereto.

[0172] As shown in Figure 45, a plurality of convex ribs 12257 are formed on the outer surface of the engagement rod 1225. The convex ribs 12257 can slide along the insertion space 12241. The convex ribs 12257 contact the inner wall of the main rod 1224. Therefore, compared to the case where the entire outer surface of the engagement rod 1225 contacts the inner wall of the main rod 1224, in this embodiment the convex ribs 12257 contact the inner wall of the main rod 1224, which reduces friction between the engagement rod 1225 and the main rod 1224 and allows for smoother sliding.

[0173] As shown in Figure 45, the end of the engaging rod 1225 furthest from the engaging projection 1221 is provided with a first insertion end 12253a and a second insertion end 12253b. The first insertion end 12253a is located above the second insertion end 12253b. The first insertion end 12253a and the second insertion end 12253b surround an entry opening 12254 that communicates with the guide groove 12252. The direction of extension of the entry opening 12254 is substantially parallel to the direction of extension of the guide groove 12252. In this way, the pin shaft 128a can be easily inserted into the guide groove 12252. At least one of the first insertion end 12253a and the second insertion end 12253b is provided with a limiting projection 12255. The engaging rod 1225 allows the pin shaft 128a to extend into the guide groove 12252 via the introduction opening 12254, and the restricting projection 12255 abuts against the pin shaft 128a, restricting the guide groove 12252 from disengaging from the pin shaft 128a. This restricts the engaging rod 1225 at least partially within the insertion space 12241 and prevents the engaging rod 1225 from disengaging from the main rod 1224. The cooperation of the introduction opening 12254 and the restricting projection 12255 allows the pin shaft 128a to be easily engaged with the guide groove 12252 of the engaging rod 1225, enabling rapid assembly of the engaging rod 1225.

[0174] In this embodiment, the first insertion end 12253a and the second insertion end 12253b are each provided with a limiting projection 12255. The two limiting projections 12255 are rotationally symmetric and have the same structure. For the sake of explanation, the structure of one of the limiting projections 12255 will be described below as an example.

[0175] The limiting projection 12255 includes an introduction portion 12255a and a limiting hook portion 12255b. The limiting hook portion 12255b is connected to the introduction portion 12255a and is closer to the guide groove 12252 than the introduction portion 12255a. The limiting hook portion 12255b is configured to abut against the pin shaft 128a, thereby preventing the guide groove 12252 from disengaging from the pin shaft 128a. The introduction portion 12255a gradually widens from the end away from the limiting hook portion 12255b toward the end adjacent to the limiting hook portion 12255b and has an inclined surface. In this way, the pin shaft 128a and the guide groove 12252 can engage more smoothly through the introduction opening 12254, making it easier to assemble the engaging rod 1225. Specifically, the process of engaging the engaging rod 1225 with the pin shaft 128a is as follows. The surface of the introduction portion 12255a of the limiting projection 12255 presses against the pin shaft 128a, causing the first insertion end 12253a and the second insertion end 12253b to elastically deform, allowing the engaging rod 1225 to move into the insertion space 12241 in a direction parallel to the main rod 1224. As the engaging rod 1225 moves and the limiting hook portion 12255b comes into contact with the pin shaft 128a, the first insertion end 12253a, the second insertion end 12253b, and the two limiting hook portions 12255b are elastically deformed by the pressure from the pin shaft 128a. The engaging rod 1225 is continuously moved into the insertion space 12241 in a direction parallel to the main rod 1224, causing the limiting hook portion 12255b to move over the pin shaft 128a and be positioned on the opposite side of the engaging projection 1221 on the pin shaft 128a. This causes the pin shaft 128a to engage with the guide groove 12252.

[0176] As shown in Figures 43 to 45, the first end of the telescopic reset member 1226 abuts against the pin shaft 128a, and the second end of the telescopic reset member 1226 abuts against the engagement rod 1225. The telescopic reset member 1226 biases the engagement rod 1225 to move to the extended position, so that if the engagement rod 1225 is not prevented by an external force, the engagement rod 1225 is held in the extended position by the elastic restoring force of the telescopic reset member 1226. As a result, when the first rotating arm 122a rotates to the deployed position, the engagement rod 1225 automatically returns to the extended position and can engage with the engagement recess 1231 of the rotating lock member 123. The telescopic reset member 1226 includes, for example, a compression spring. The engagement rod 1225 is provided with a housing space 12256. The telescopic reset member 1226 is housed within the housing space 12256. The second end of the retractable reset member 1226 abuts against the bottom wall of the housing space 12256, and the first end of the retractable reset member 1226 abuts against the pin shaft 128a.

[0177] In this embodiment, by providing an engagement rod 1225 that is movable relative to the main rod 1224, the first rotating arm 122a can engage more smoothly with the rotation locking member 123, and the first rotating arm 122a can switch more smoothly from the folded position to the deployed position. Specifically, in the process of the first rotating arm 122a switching from the folded position to the deployed position, the engagement projection 1221 of the engagement rod 1225 is pressed by the rotation locking member 123, and thereafter the engagement rod 1225 is retracted into the main rod 1224 (i.e., moves to the retracted position), thereby allowing the first rotating arm 122a to rotate more smoothly relative to the rotation base 121. When the first rotating arm 122a is switched to the deployed position, the engaging projection 1221 faces the engaging recess 1231, and the engaging rod 1225 is not locked by the rotation locking member 123. As a result, the engaging rod 1225 moves from the retracted position to the extended position, and the engaging projection 1221 engages with the engaging recess 1231, holding the first rotating arm 122a in the deployed position.

[0178] As shown in Figures 41 to 43, the bracket connection assembly 10 is further provided with an auxiliary reset member 105. One end of the auxiliary reset member 105 is connected to the connection base 101, and the other end of the auxiliary reset member 105 abuts against the first swivel arm 102a (i.e., the first rotating arm 122a). The auxiliary reset member 105 biases the first swivel arm 102a to rotate toward the deployed position. The auxiliary reset member 105 can provide an assisting force to rotate the first swivel arm 102a toward the deployed position while the bed frame 1000 is being deployed. That is, the first swivel arm 102a and the second swivel arm 102b (i.e., the second rotating arm 122b) can be rotated toward the deployed position more easily. In this way, the bed frame 1000 can be deployed more easily and with less effort. When the bed frame 1000 is in the folded state, the elastic restoring force of the auxiliary reset member 105 causes the bed frame 1000 to tend to unfold. Therefore, by securing the support legs 200 of the bed frame 1000 with ropes, straps, bands, etc., the bed frame 1000 can be held in a completely folded state, making it easy to store the bed frame 1000. In this embodiment, the auxiliary reset member 105 may be positioned on the first swivel arm 102a of the first armrest frame 110, on the first swivel arm 102a of the second armrest frame 120, or on both the first swivel arm 102a of the first armrest frame 110 and the first swivel arm 102a of the second armrest frame 120.

[0179] Referring to Figure 46, the auxiliary reset member 105 includes, for example, a torsion spring. The auxiliary reset member 105 includes two spring body portions 1053, two first ends 1051, and a second end 1052 connected to the two spring body portions 1053. The first swivel arm 102a (i.e., the first rotating arm 122a) is pivotably connected to the connecting base 101 via a pin shaft 128a, and the two spring body portions 1053 are fitted onto the pin shaft 128a and are each located on the corresponding side of the first swivel arm 102a. The two first ends 1051 abut against the connecting base 101 (i.e., the rotating base 121). Specifically, the two side walls 1213 of the rotating base 121 are each provided with abutment holes 1216. The first end 1051 is inserted into the corresponding contact hole 1216 and abuts against the corresponding hole wall of the contact hole 1216. The second end 1052 abuts against the first swivel arm 102a and is positioned between the first swivel arm 102a and the second swivel arm 102b.

[0180] In this embodiment, as shown in Figures 42 and 46, the second end portion 1052 is substantially U-shaped. The auxiliary reset member 105 can be attached in the following two ways.

[0181] In the first configuration, the first pivot arm 102a extends below the second end 1052, then the two spring body portions 1053 are positioned on either side of the first pivot arm 102a and fitted onto the pin shaft 128a, and finally the two first ends 1051 are inserted into their respective contact holes 1216 and contact the corresponding holes of the contact holes 1216.

[0182] In the second configuration, the two first ends 1051 are each inserted into corresponding contact holes 1216 and abut against the corresponding holes 1216. The first swivel arm 102a extends below the second end 1052, and the two spring body portions 1053 are positioned on either side of the first swivel arm 102a and fitted onto the pin shaft 128a.

[0183] When the first swivel arm 102a is in the folded position, the auxiliary reset member 105 is in a state of accumulating elastic energy, and due to the elastic restoring force of the auxiliary reset member 105, the first swivel arm 102a tends to rotate slightly toward the unfolded position or to attempt to rotate toward the unfolded position, thereby making it easier to unfold the bed frame 1000.

[0184] As shown in Figure 41, in this embodiment, the bracket connection structure 11 further includes a corner connecting member 130, a support leg 200, and a connecting rod 140. The first armrest frame 110 and the second armrest frame 120 are connected to the corner connecting member 130. The support leg 200 is connected to the corner connecting member 130. The support leg 200 is provided with a slidable sliding member 400. The first armrest frame 110 and the second armrest frame 120 are each connected to the same sliding member 400 via the connecting rod 140. The first armrest frame 110 and the second armrest frame 120 are passively connected to each other via a connecting member 20.

[0185] Compared to the first to sixth embodiments, in the seventh embodiment, during the process of switching the child carrier from a folded state to an unfolded state, the elastic restoring force of the auxiliary reset member 105 causes the first swivel arm 102a (i.e., the first rotating arm 122a) to rotate toward the unfolded position, thereby making it easier to unfold the child carrier (i.e., the bed frame 1000). Furthermore, during the process of switching the bed frame 1000 from a folded state to an unfolded state, the engagement rod 1225 of the first rotating arm 122a is pressed and retracted by the rotation lock member 123. When the first rotating arm 122a rotates to a predetermined position (i.e., to the unfolded position), the engagement rod 1225 protrudes from the insertion space 12241 of the main rod 1224 and engages with the engagement recess 1231 of the rotation lock member 123.

[0186] In the seventh embodiment, the folding process of the child carrier (i.e., the process from the unfolded state to the folded state) can be described by referring to the folding process in the fourth and fifth embodiments, and a detailed explanation of that process will not be repeated here.

[0187] In other embodiments, the bracket connection assembly 10 in the first, second, third, fourth, fifth, and sixth embodiments may be configured to include an auxiliary reset member 105 to assist in the deployment of the bed frame 1000, and the present application is not limited thereto.

[0188] According to the child carrier, bracket connection structure, and bracket connection assembly of the present invention, the pivoting of the pivot arm is permitted or prohibited by the arrangement of a movable locking member, thereby providing a child carrier, bracket connection structure, and bracket connection assembly that are simple in structure and easy to switch between states.

[0189] The technical features of each embodiment described above can be combined in any way. For the sake of brevity, not all possible combinations of technical features are described in each embodiment. However, as long as these combinations of technical features are not contradictory, they should be considered to be included within the scope of this specification.

[0190] The embodiments described above illustrate only a few examples of the present application, and while their descriptions are relatively specific and detailed, they should not be interpreted as limiting the scope of the present application. Those skilled in the art will understand that various modifications and improvements can be made without departing from the spirit of the present application, and that all such modifications and improvements fall within the scope of protection. Therefore, the scope of protection of the present application shall be determined based on the appended claims.

Claims

1. A bracket connection structure, Equipped with a bracket connection assembly, The bracket connection assembly is Connection base and At least one swivel arm pivotably connected to the aforementioned connection base, A locking member is movably disposed on the connecting base and restricts or allows the rotation of the at least one swivel arm relative to the connecting base, including, Bracket connection structure.

2. The bracket connection assembly includes a movable connection assembly, The aforementioned mobile connection assembly is The pivot base which functions as the connection base, The at least one set of pivot arms that function as at least one swivel arm, At least one movable locking member is movably disposed on the pivot base and is switchable between a movable unlock position and a movable lock position, Includes, Each set of pivot arms includes a first pivot arm and a second pivot arm that are pivotably connected to the same side of the pivot base. The first pivot arm and the second pivot arm are arranged with a gap between them. When the movement locking member is in the movement lock position, the movement locking member simultaneously stops the first pivot arm and the second pivot arm, and restricts the rotation of the first pivot arm and the rotation of the second pivot arm. When the movable locking member is in the movable lock release position, the first pivot arm and the second pivot arm are rotatable relative to the pivot base. Bracket connection structure according to claim 1.

3. The movable locking member includes a first surface and a second surface that are opposite to each other, When the movable locking member is in the movable locking position, the first pivot arm is stopped by the first surface, and the second pivot arm is stopped by the second surface. When the movable locking member is in the movable lock release position, the first pivot arm is in a position offset from the first plane, and the second pivot arm is in a position offset from the second plane. Bracket connection structure according to claim 2.

4. Two sets of pivot arms are provided, and the two sets of pivot arms are positioned on both sides of the pivot base, Two movement locking members are provided, and the two movement locking members cooperate with the two sets of pivot arms to restrict or allow the rotation of the two sets of pivot arms relative to the pivot base. A bracket connection structure according to any one of claims 2 to 3.

5. The movable connection assembly further includes a movable reset member positioned between the two movable lock members, the movable reset member biasing the two movable lock members so that they tend to move toward the movable lock position. Bracket connection structure according to claim 4.

6. The movable connection assembly further includes a connecting member that is movably positioned on the pivot base, A drive groove is provided in one of the connecting member and the movable locking member, and the direction in which the drive groove extends is at an angle with respect to the direction of movement of the movable locking member and at an angle with respect to the direction of movement of the connecting member. A drive member is provided on the other of the connecting member and the movable locking member, and the drive member slides into the drive groove and drives the movable locking member to switch between the movable lock position and the movable unlock position. A bracket connection structure according to any one of claims 2 to 5.

7. The bracket connection structure includes two movable connection assemblies, The movable locking member of one of the two movable connection assemblies is connected to the movable locking member of the other of the two movable connection assemblies via a connecting member, so that when one of the two movable connection assemblies is operated, the other of the two movable connection assemblies is driven to switch between a locked state and an unlocked state. Bracket connection structure according to claim 6.

8. The two moving connection assemblies include a first moving assembly and a second moving assembly, The connecting member of the first movable assembly is provided with an operable operating part. Bracket connection structure according to claim 7.

9. The bracket connection assembly further includes a rotary connection assembly and a connecting member, The aforementioned rotary connection assembly is A rotating base that functions as the connection base, The swivel arm comprises at least one first rotating arm, The rotating base comprises at least one rotation locking member that is rotatably disposed on the rotating base and can be switched between a rotation unlocked position and a rotation locked position, Includes, The at least one first rotating arm is pivotably connected to the rotating base, When the rotation locking member is in the rotation unlock position, the first rotating arm is rotatable relative to the rotating base, and when the rotation locking member is in the rotation lock position, the rotation of the first rotating arm relative to the rotating base is restricted. The movable connection assembly is driveable via the connecting member to switch the rotary connection assembly from a locked state to an unlocked state, or the rotary connection assembly is driveable via the connecting member to switch the movable connection assembly from a locked state to an unlocked state. A bracket connection structure according to any one of claims 2 to 8.

10. An engaging recess is provided on one of the first rotating arm and the rotating locking member, and an engaging projection is provided on the other of the first rotating arm and the rotating locking member. When the rotation locking member is in the rotation lock position, the engaging projection engages with the engaging recess, and when the rotation locking member is in the rotation unlock position, the engaging projection disengages from the engaging recess. Bracket connection structure according to claim 9.

11. The bracket connection assembly includes a rotary connection assembly, The aforementioned rotary connection assembly is A rotating base that functions as the connection base, The swivel arm comprises at least one first rotating arm, The rotating base comprises at least one rotation locking member that is rotatably disposed on the rotating base and can be switched between a rotation unlocked position and a rotation locked position, Includes, The at least one first rotating arm is pivotably connected to the rotating base, When the rotation locking member is in the rotation unlock position, the first rotating arm is rotatable relative to the rotating base, and when the rotation locking member is in the rotation lock position, the rotation of the first rotating arm relative to the rotating base is restricted. A bracket connection structure according to any one of claims 1 to 10.

12. The rotary connection assembly is provided with two first rotary arms, The opposing ends of the two first rotating arms are pivotably connected to the rotating base. Two rotation locking members are provided, and each of the two rotation locking members is engageable with the first rotation arm. The two rotation locking members interlock with each other so that they switch synchronously between the rotation lock position and the rotation unlock position. Bracket connection structure according to claim 11.

13. The rotary connection assembly further includes a rotary reset member, The rotation reset member biases the rotation lock member so that the rotation lock member tends to rotate toward the rotation lock position. Bracket connection structure according to claim 11 or 12.

14. The rotary connection assembly further includes an operating member, and the rotary base of the rotary connection assembly has a receiving groove. The rotation locking member is housed in the housing groove, at least a portion of it. Through holes are provided in the side walls of the aforementioned accommodating groove. The operating member is connected to the rotation lock member via the through hole and drives the rotation lock member to switch between the rotation lock position and the rotation unlock position. A bracket connection structure according to any one of claims 11 to 13.

15. The rotation locking member is provided with a pivot projection having a recess, The operating member is provided with a pivot recess configured to accommodate the pivot projection, and the pivot recess is provided with a protrusion configured to engage with the recess. Bracket connection structure according to claim 14.

16. Two rotary connection assemblies are provided, and the two rotary connection assemblies are passively connected to each other via a connecting member. When one of the rotating connection assemblies is operated, the other of the rotating connection assemblies is driven by the connecting member to switch between a locked state and an unlocked state. A bracket connection structure according to any one of claims 11 to 15.

17. The first rotating arm includes a main rod and an engagement rod, The engaging rod is connected to the end of the main rod adjacent to the rotation locking member, and is movable between an extended position and a retracted position relative to the main rod. The first rotating arm has an extended position and a folded position, and in the process of the first rotating arm switching from the folded position to the extended position, the rotating lock member presses the engaging rod, thereby moving the engaging rod from the extended position to the retracted position. A bracket connection structure according to any one of claims 11 to 16.

18. The rotation locking member is provided with an engaging recess, and the end of the engaging rod furthest from the main rod functions as an engaging projection. When the first rotating arm is in the folded position, the engaging projection is separated from the engaging recess, and the engaging rod is in the extended position. When the first rotating arm switches from the folded position to the extended position, the engaging projection faces the engaging recess, and the engaging rod moves from the retracted position to the extended position, thereby causing the engaging projection to engage with the engaging recess. Bracket connection structure according to claim 17.

19. An insertion space is provided in one of the main rod and the engaging rod, and the other of the main rod and the engaging rod is inserted into the insertion space, with at least a portion of it being confined to the insertion space. Bracket connection structure according to claim 17 or 18.

20. The main rod has an insertion space and is pivotably connected to the rotating base via a pin shaft. The engaging rod is inserted into the insertion space and has a guide groove, the direction of extension of the guide groove is parallel to the direction of extension of the insertion space. The pin shaft extends through the guide groove and restricts the engagement rod from separating from the main rod. A bracket connection structure according to any one of claims 17 to 19.

21. The end of the engagement rod furthest from the engagement projection is provided with a first insertion end and a second insertion end. The first insertion end and the second insertion end surround an introduction opening that communicates with the guide groove, and at least one of the first insertion end and the second insertion end is provided with a limiting projection. The engaging rod allows the pin shaft to extend into the guide groove through the introduction opening, and restricts the guide groove from separating from the pin shaft by bringing the limiting projection into contact with the pin shaft. Bracket connection structure according to claim 20.

22. The first rotating arm is further provided with an extendable reset member, One end of the retractable reset member abuts against the pin shaft, and the other end of the retractable reset member abuts against the engagement rod, and the retractable reset member biases the engagement rod to move toward the extended position. Bracket connection structure according to claim 20 or 21.

23. The engaging rod is provided with a housing space, and the telescopic reset member is housed within the housing space and abuts against the bottom wall of the housing space. Bracket connection structure according to claim 22.

24. The at least one swivel arm includes a first swivel arm, which is pivotably connected to the connecting base via a pin shaft and is switchable between an extended position and a folded position. The bracket connection assembly is further provided with an auxiliary reset member, one end of which is connected to the connection base, and the other end of which abuts against the first swivel arm, and the auxiliary reset member biases the first swivel arm to rotate toward the deployed position. A bracket connection structure according to any one of claims 1 to 23.

25. The aforementioned auxiliary reset member is Two spring bodies, Two first ends and, The second end connected to the two spring body portions, Includes, The first swivel arm is pivotably connected to the connecting base via the pin shaft, and the two spring bodies are fitted onto the pin shaft and are positioned on both sides of the first swivel arm, The two first ends abut against the connecting base, and the second end abuts against the first swivel arm and is positioned between the first swivel arm and the second swivel arm. Bracket connection structure according to claim 24.

26. A bracket connection structure comprising any one of claims 1 to 25, Child carrier.

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