Folding system and child carrier

EP4713239A1Pending Publication Date: 2026-03-25WONDERLAND SWITZERLAND AG
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-15
Publication Date
2026-03-25

AI Technical Summary

Technical Problem

Child carriers, such as strollers, face safety hazards due to accidental folding caused by unintentional touch of the folding operation portion, potentially leading to injuries.

Method used

A folding system with a first locking mechanism and a safety lock mechanism that prevents accidental folding by requiring intentional user action to switch from a locked to an unlocked state, using a driving member and transmission member to pivot and displace components that engage and disengage the locking mechanism.

Benefits of technology

The system effectively prevents accidental folding of child carriers, enhancing user safety by ensuring that the carrier can only be folded intentionally, reducing the risk of injuries from unintentional operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

A child carrier includes a handlebar and a front leg pivotably connected to each other. A folding system for this child carrier includes a first locking mechanism connected to the handlebar and the front leg, the first locking mechanism being switchable between a locked state and an unlocked state; a first operation portion connected to the first locking mechanism and configured to switch the first locking mechanism from the locked state to the unlocked state, in the locked state the first locking mechanism restricting relative pivoting of the handlebar and the front leg, and in the unlocked state the first locking mechanism allowing the relative pivoting of the handlebar and the front leg; and a safety lock mechanism connected to the first locking mechanism, the safety lock mechanism being switchable between a secured state and a free state, in the secured state the safety lock mechanism preventing the first locking mechanism from being switched to the unlocked state, and in the free state the safety lock mechanism allowing the first locking mechanism to be switched to the unlocked state.
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Description

FOLDING SYSTEM AND CHILD CARRIERTECHNICAL FIELD

[0001] The present application relates to the field of child product technologies, and in particular, to a folding system and a child carrier.BACKGROUND

[0002] A child carrier, such as a child stroller, is usually provided with a folding system to fold the child carrier into a smaller volume for easy transport and carrying. In order to facilitate operation of a user, generally, an operation portion of the folding system is configured to have a large operable volume and arranged at a position easily accessible to the user; for example, the operation portion is a flexible pull rope arranged on a seat plate.

[0003] However, the risk of accidental folding of the child carrier caused by an unintentional touch of the operation portion is also brought, and certain potential safety hazards are brought to the user. For example, when a child sits in the child carrier, the child carrier may be accidentally folded due to the child touching the operation portion unintentionally, so that the child may be caught by the folded child carrier. In extreme cases, even injuries to the child may be caused.SUMMARY

[0004] Based on this, there is a need to provide a folding system capable of preventing accidental folding caused by an unintentional touch of an operation portion, and a child carrier having the same, so as to solve the above technical problems.

[0005] According to an aspect of the present application, there is provided a folding system for a child carrier, the child carrier at least including a handlebar and a front leg pivotably connected to each other. The folding system includes: a first locking mechanism at least connected to the handlebar and the front leg, the first locking mechanism being switchable between a locked state and an unlocked state; a first operation portion connected to the first locking mechanism and configured to switch the first locking mechanism from the locked state to the unlocked state, in the locked state, the first locking mechanism restricting relative pivoting of the handlebar and the front leg, and in the unlocked state, the first locking mechanism allowing the relative pivoting of the handlebar and the front leg; and a safety lock mechanism connected to the first locking mechanism, the safety lock mechanism being switchable between a secured state and a free state, in the secured state, the safetylock mechanism preventing the first locking mechanism from being switched to the unlocked state, and in the free state, the safety lock mechanism allowing the first locking mechanism to be switched to the unlocked state.

[0006] In the folding system according to an embodiment of the present application, the risk that the child carrier is folded accidentally due to an unintentional touch of the first operation portion is avoided by arranging the safety lock mechanism, thus improving safety of the child carrier.

[0007] In an embodiment, the first locking mechanism includes: a driving member pivotably arranged on the child carrier, the driving member being connected to the first operation portion and the safety lock mechanism, the driving member being configured to be driven to pivot by the first operation portion, the safety lock mechanism preventing the driving member from pivoting when the safety lock mechanism is in the secured state, and the safety lock mechanism allowing the driving member to pivot when the safety lock mechanism is in the free state; and a transmission member connected to the driving member, the pivoting of the driving member driving the transmission member to be displaced, and downward displacement of the transmission member in a vertical direction driving the first locking mechanism to be switched from the locked state to the unlocked state.

[0008] In an embodiment, the driving member includes: a first post connected to the transmission member; and a first concave hole, at least part of the safety lock mechanism entering the first concave hole to prevent the driving member from pivoting, or exiting from the first concave hole to allow the driving member to pivot.

[0009] In an embodiment, the transmission member includes: a second concave hole, the first post being connected in the second concave hole.

[0010] In an embodiment, the first locking mechanism further includes: an unlocking member connected to the transmission member; and a first locking member connected to the unlocking member, the first locking member being lockably connected to the handlebar and the front leg. The first locking member is slidable between a first position and a second position, and in the first position, the first locking member limits the relative pivoting of the handlebar and the front leg, and the first locking mechanism is in the locked state; in the second position, the first locking member allows the relative pivoting of the handlebar and the front leg, and the first locking mechanism is in the unlocked state. The displacement of the transmission member drives the unlocking member to be displaced, and the displacement of the unlocking member drives the first locking member to slide from the first position to the second position.

[0011] In an embodiment, the first locking mechanism further includes: a handlebar connecting member fixedly connected to the handlebar, the handlebar connecting member being provided with a first accommodating portion; and a front leg connecting member fixedly connected to the front leg, the front leg connecting member being provided with a second accommodating portion. The handlebar connecting member and the front leg connecting member are pivotably connected, the first accommodating portion and the second accommodating portion together form a locking member accommodating portion, and the first locking member is slidably arranged in the locking member accommodating portion. In the first position, the first locking member is simultaneously engaged with the handlebar connecting member and the front leg connecting member to limit the relative pivoting of the handlebar and the front leg; in the second position, the first locking member is disengaged from at least one of the handlebar connecting member and the front leg connecting member to allow the relative pivoting of the handlebar and the front leg.

[0012] In an embodiment, a first connecting column is arranged on a side of the unlocking member away from the first locking member, the transmission member is provided with a first connecting hole, and the first connecting column is inserted into the first connecting hole to connect the unlocking member to the transmission member.

[0013] In an embodiment, the unlocking member includes: a first inclined surface, and the first locking member includes: a second inclined surface. The first inclined surface and the second inclined surface contact each other, and when the driving member is displaced to drive the unlocking member to be displaced, the first inclined surface presses the second inclined surface, so that the first locking member slides away from the unlocking member, the first locking member slides from the first position to the second position, and the first locking member is disengaged from the front leg connecting member.

[0014] In an embodiment, an inner wall of the first accommodating portion is provided with first teeth, an inner wall of the second accommodating portion is provided with second teeth, and an outer circumference of the first locking member is provided with third teeth. In the first position, the third teeth are simultaneously engaged with the first teeth and the second teeth to limit the relative pivoting of the handlebar and the front leg; in the second position, the third teeth are disengaged with the second teeth to allow the relative pivoting of the handlebar and the front leg.

[0015] In an embodiment, a second connecting column is arranged in the second accommodating portion, the first locking member is provided with a second connecting hole, and the first locking member is slidably connected to the front leg connecting member by inserting the second connectingcolumn into the second connecting hole.

[0016] In an embodiment, the folding system further includes: a first reset member arranged between the first locking member and the handlebar connecting member, the first reset member biasing the first locking member towards the first position.

[0017] In an embodiment, the first locking mechanism further includes: an armrest holder pivotably connected to the child carrier, the armrest holder being provided with a locking hole; and a second locking member connected to the transmission member, the second locking member being movable between a third position and a fourth position, in the third position, the second locking member being engaged in the locking hole to restrict pivoting of the armrest holder, and in the fourth position, the second locking member being disengaged from the locking hole to allow the pivoting of the armrest holder, the pivoting of the driving member displacing the transmission member, and the displacement of the transmission member displacing the second locking member from the third position to the fourth position.

[0018] In an embodiment, the transmission member includes a connecting rod, and a convex portion is arranged on the connecting rod. The connecting rod is sleeved with the second locking member, the second locking member includes a through groove, the convex portion is extended through the through groove, and when the transmission member is driven by the driving member to be displaced, the convex portion pushes against the through groove to drive the second locking member to move from the third position to the fourth position.

[0019] In an embodiment, the folding system further includes: a second reset member arranged between the second locking member and at least part of the transmission member, the second reset member biasing the second locking member towards the third position.

[0020] In an embodiment, the first locking mechanism further includes: an armrest holder pivotably connected to a side of the front leg connecting member away from the handlebar connecting member, the armrest holder being provided with a locking hole; and a second locking member connected to the transmission member, the second locking member being movable between a third position and a fourth position, in the third position, the second locking member being engaged in the locking hole to restrict pivoting of the armrest holder, and in the fourth position, the second locking member being disengaged from the locking hole to allow the pivoting of the armrest holder, the pivoting of the driving member displacing the transmission member, and the displacement of the transmission member displacing the second locking member from the third position to the fourth position.

[0021] In an embodiment, the transmission member includes a connecting rod, a convex portion is arranged on the connecting rod, and the connecting rod is arranged between the second concave hole and the first connecting hole. The connecting rod is sleeved with the second locking member, the second locking member includes a through groove, the convex portion is extended through the through groove, and when the transmission member is driven by the driving member to displace, the convex portion pushes against the through groove to drive the second locking member to move from the third position to the fourth position.

[0022] In an embodiment, the folding system further includes: a second reset member arranged between the second locking member and the second concave hole, one end of the second reset member abutting against the second locking member, the other end of the second reset member abutting against the second concave hole, and the second reset member biasing the second locking member towards the third position.

[0023] In an embodiment, the safety lock mechanism includes: a second operation portion pivotably arranged on the child carrier, the second operation portion being pivotable between a secured position and a free position; and a pushing member pivotably arranged on the child carrier, a first end of the pushing member being operatively connected to the second operation portion, and a second end of the pushing member opposite to the first end being capable of entering or exiting from the first concave hole of the driving member. In the secured position, the second end of the pushing member enters the first concave hole, and the safety lock mechanism is in the secured state; in the free position, the second end of the pushing member exits from the first concave hole, and the safety lock mechanism is in the free state.

[0024] In an embodiment, the second operation portion includes a third inclined surface, and the first end of the pushing member is provided with a fourth inclined surface. When the second operation portion is pivoted from the secured position to the free position, the third inclined surface presses the fourth inclined surface to pivot the pushing member, the second end exits from the first concave hole, and the safety lock mechanism is switched to the free state.

[0025] In an embodiment, the second end of the pushing member is provided with a second post, and the second post can enter or exit from the first concave hole of the driving member.

[0026] In an embodiment, the folding system further includes: a third reset member, one end of the third reset member abutting against the child carrier, the other end of the third reset member abutting against the pushing member, and the third reset member biasing the pushing member in a direction causing the second end to enter the first concave hole.

[0027] According to another aspect of the present application, there is provided a child carrier, including: the folding system according to any of the above embodiments; a handlebar; and a front leg pivotably connected to the handlebar.

[0028] In an embodiment, the child carrier further includes: a seat plate, the driving member, the second operation portion, and the pushing portion being pivotably arranged on the seat plate.

[0029] In an embodiment, the child carrier further includes: an armrest detachably connected to the armrest holder.BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and other objects, features and advantages of the present application will become more apparent from a more detailed description of the preferred embodiments of the present application shown in the accompanying drawings. The same reference numerals refer to the same parts throughout the drawings, and the drawings are not intentionally drawn to scale, the emphasis being placed on illustrating the subject matter of the present application.

[0031] Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

[0032] FIG. 1 is a schematic perspective diagram of a child carrier according to an embodiment of the present application, in which the child carrier is in an unfolded state;

[0033] FIG. 2 is a schematic perspective diagram of the child carrier in FIG. 1 from another perspective;

[0034] FIG. 3 is a schematic perspective diagram of the child carrier in FIG. 1, in which the child carrier is in a partially folded state;

[0035] FIG. 4 is a partial exploded view of the child carrier according to an embodiment of the present application;

[0036] FIG. 5 is a partial enlarged view of portion A in FIG. 4;

[0037] FIG. 6 is a partial enlarged view of portion B in FIG. 4;

[0038] FIG. 7a is a schematic structural diagram of an unlocking member;

[0039] FIG. 7b is a schematic structural diagram of a first locking member;

[0040] FIG. 8 is a partial exploded view of the child carrier according to an embodiment of the present application, in which a seat plate and a front leg connecting member are omitted, and a first locking mechanism is in a locked state;

[0041] FIG. 9 is a partial enlarged view of portion C in FIG. 8;

[0042] FIG. 10 is a partial exploded view of the child carrier according to an embodiment of the present application, in which the seat plate and the front leg connecting member are omitted, and the first locking mechanism is in an unlocked state;

[0043] FIG. 11 is a partial enlarged view of portion D in FIG. 10;

[0044] FIG. 12 is a sectional view taken along line Z-Z in FIG. 2, in which part of a structure of the child carrier is omitted and the first locking mechanism is in the locked state;

[0045] FIG. 13 is a schematic diagram of the first locking mechanism of FIG. 12 in the unlocked state;

[0046] FIG. 14a is a schematic bottom perspective diagram of the child carrier according to an embodiment of the present application;

[0047] FIG. 14b is a partial enlarged view of portion E in FIG. 14a;

[0048] FIG. 15 is a schematic perspective diagram of the child carrier according to an embodiment of the present application, in which part of a structure of the seat plate is omitted;

[0049] FIG. 16 is a partial enlarged view of portion F in FIG. 15;

[0050] FIG. 17a is a bottom view of the child carrier according to an embodiment of the present application, in which a safety lock mechanism is in a secured state;

[0051] FIG. 17b is a partial enlarged view of portion G in FIG. 17a;

[0052] FIG. 18 is a schematic perspective diagram of the child carrier according to an embodiment of the present application, in which part of the structure of the seat plate is omitted;

[0053] FIG. 19 is a partial enlarged view of portion H in FIG. 18;

[0054] FIG. 20a is a bottom view of the child carrier according to an embodiment of the present application, in which the safety lock mechanism is in a free state;

[0055] FIG. 20b is a partial enlarged view of portion I in FIG. 20a;

[0056] FIG. 21 is a side view of the child carrier according to an embodiment of the present application in a folded state;

[0057] FIG. 22 is a schematic perspective diagram of the child carrier according to an embodiment of the present application, in which a second locking member is in a third position;

[0058] FIG. 23 is a partial enlarged view of portion J in FIG. 22;

[0059] FIG. 24 is a schematic perspective diagram of the child carrier according to an embodiment of the present application, in which the second locking member is in a fourth position; and

[0060] FIG. 25 is a partial enlarged view of portion K in FIG. 24.

[0061] List of reference numerals

[0062] 1 : child carrier, 10: handlebar, 20: front leg, 30: seat plate, 40: armrest, 50: rear leg.

[0063] 100: folding system, 110: first locking mechanism, 111 : driving member, 112: transmission member, 113: unlocking member, 114: first locking member, 115: handlebar connecting member, 116: front leg connecting member, 117: locking member accommodating portion, 118: armrest holder, 119: second locking member, 120: first operation portion, 130: safety lock mechanism, 140: first reset member, 150: second reset member, 160: third reset member, 301 : mounting cover, 302: connecting portion, 303: operating hole.

[0064] 1111 : first post, 1112: first concave hole, 1121 : second concave hole, 1122: first connecting hole, 1123: connecting rod, 1124: convex portion, 1131 : first connecting column, 1132: first inclined surface, 1141 : second inclined surface, 1142: third tooth, 1143: second connecting hole, 1151 : first accommodating portion, 1152: first tooth, 1161 : second accommodating portion, 1162: second tooth, 1163: second connecting column, 1164: first through hole, 1181 : locking hole, 1191 : through groove, 1301 : second operation portion, 1302: pushing member, 1303: third inclined surface, 1304: fourth inclined surface, 1305: second post, 3021 : connecting groove, 3023: second through hole.DETAILED DESCRIPTION

[0065] To facilitate an understanding of the present application, the present application is described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments set forth herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and complete.

[0066] It should be noted that when an element is considered to be “connected to” another element, the element may be directly connected to and combined with the other element or an intermediate element may exist. The terms “mounted”, “one end”, “the other end”, or the like, as used herein are for illustrative purposes only.

[0067] Unless defined otherwise, all technical and scientific terms used herein have the same meanings as are commonly understood by those skilled in the art. The terms used herein in thespecification of the present application are for the purpose of describing specific embodiments only but not intended to limit the present application. The term “and / or” used herein includes any and all combinations of one or more related listed items.

[0068] Referring to FIG. 1 to FIG. 3 and FIG. 21, FIG. 1 is a schematic perspective diagram of a child carrier according to an embodiment of the present application, in which the child carrier is in an unfolded state; FIG. 2 is a schematic perspective diagram of the child carrier in FIG. 1 from another perspective; FIG. 3 is a schematic perspective diagram of the child carrier in FIG. 1, in which the child carrier is in a partially folded state; FIG. 21 is a side view of the child carrier according to an embodiment of the present application in a folded state. In the embodiment shown in FIG. 1 to FIG. 3, the child carrier 1, such as a child safety seat, includes: a handlebar 10, a front leg 20, a seat plate 30, an armrest 40, and a rear leg 50. The front leg 20 and the rear leg 50 are pivotably connected to the handlebar 10. The armrest 40 and the seat plate 30 are pivotably connected to the front leg 20. The child carrier 1 further includes a folding system 100, by which the child carrier can be folded from the unfolded state shown in FIG. 1 to the folded state shown in FIG. 21 via the partially folded state shown in FIG. 3.

[0069] In the embodiment shown in FIG. 1 to FIG. 3, the folding system 100 includes: a first locking mechanism 110, a first operation portion 120, and a safety lock mechanism 130. The first locking mechanism 110 is at least connected to the handlebar 10 and the front leg 20, and the first locking mechanism 110 is switchable between a locked state and an unlocked state; the first operation portion 120 is operatively connected to the first locking mechanism 110 and configured to switch the first locking mechanism 110 from the locked state to the unlocked state. In the locked state, the first locking mechanism 110 limits relative pivoting of the handlebar 10 and the front leg 20. In the unlocked state, the first locking mechanism 110 allows the relative pivoting of the handlebar 10 and the front leg 20. The safety lock mechanism 130 is operatively connected to the first locking mechanism 110, and the safety lock mechanism 130 is switchable between a secured state and a free state. In the secured state, the safety lock mechanism 130 prevents the first locking mechanism 110 from being switched to the unlocked state. In the free state, the safety lock mechanism 130 allows the first locking mechanism 110 to be switched to the unlocked state. In the present embodiment, the risk that the child carrier 1 is folded accidentally due to an unintentional touch of the first operation portion 120 is avoided by arranging the safety lock mechanism 130, thus improving safety of the child carrier 1. Specifically, in use, a user is required to switch the safety lock mechanism 130 to the free state, and then can switch the first locking mechanism 110 to the unlocked state by operating the firstoperation portion 120, so as to allow the child carrier 1 to be folded. If the user does not switch the safety lock mechanism 130 to the free state, even if the first operation portion 120 is operated, for example, a child sitting in the child carrier 1 touches the first operation portion 120 unintentionally, the first locking mechanism 110 cannot be switched from the locked state to the unlocked state by the first operation portion 120, and the child carrier 1 cannot be folded.

[0070] In the embodiment shown in FIG. 1, the first operation portion 120 may be a flexible pull rope which passes through an operating hole 303 arranged on the seat plate 30 and is operatively connected to the first locking mechanism 110 (refer to FIG. 14a and FIG. 14b). However, this is merely exemplary, and those skilled in the art may select other suitable structures for the first operation portion 120 as needed, for example, a pull rod, a brace, or the like, which is not limited in the present application.

[0071] Referring to FIG. 4 to FIG. 6, FIG. 4 is a partial exploded view of the child carrier according to an embodiment of the present application; FIG. 5 is a partial enlarged view of portion A in FIG. 4; FIG. 6 is a partial enlarged view of portion B in FIG. 4. In the embodiment shown in FIG. 4, the first locking mechanism 110 includes: a driving member 111 and a transmission member 112. The driving member Ill is pivotably arranged on the child carrier 1 ; for example, the driving member 111 is pivotably arranged on a lower side of the seat plate 20. The driving member 111 is operatively connected to the first operation portion 120 and the safety lock mechanism 130. The driving member111 is driven by the first operation portion 120 to pivot along LI. When the safety lock mechanism 130 is in the secured state, the safety lock mechanism 130 prevents the driving member 111 from pivoting. When the safety lock mechanism 130 is in the free state, the safety lock mechanism 130 allows the driving member 111 to pivot. The transmission member 112 is operatively connected to the driving member 111. The pivoting of the driving member 111 drives the transmission member112 to be displaced downwards in a vertical direction (i.e., in the direction Hl), and the downward displacement of the transmission member 112 in the vertical direction drives the first locking mechanism 110 to be switched from the locked state to the unlocked state.

[0072] The driving member 111 is provided with a connecting ring 1113, and the first operation portion 120 is extended through an end portion of the operating hole 303 to be connected to the connecting ring 1113. It should be understood by those skilled in the art that the connecting ring 1113 is merely exemplary, and those skilled in the art can select other suitable connecting structures to connect the first operation portion according to actual needs, such as a connecting hook, a connecting rod, or the like.

[0073] In the embodiment shown in FIG. 4, the driving member 111 includes: a first post 1111 and a first concave hole 1112. The first post 1111 is connected to the transmission member 112, and at least part of the safety lock mechanism 130 enters or exits from the first concave hole 1112. The transmission member 112 extends in the vertical direction, one end of the transmission member 112 is provided with a second concave hole 1121, and the first post 1111 enters the second concave hole 1121 to be connected to the transmission member 112. When the user lifts the first operation portion 120 upwards, the driving member 111 is pivoted downwards, and the first post 1111 drives the transmission member 112 to be displaced downwards in the vertical direction through the second concave hole 1121.

[0074] With continued reference to FIG. 4 to FIG. 6, the first locking mechanism 110 further includes: an unlocking member 113 and a first locking member 114. The unlocking member 13 is connected to the transmission member 112, the first locking member 114 is operatively connected to the unlocking member 13, and the first locking member 114 is lockably connected to the handlebar 10 and the front leg 20. The first locking member 114 is slidable between a first position and a second position. In the first position, the first locking member 114 restricts relative pivoting of the handlebar 10 and the front leg 20, and the first locking mechanism 110 is in the locked state. In the second position, the first locking member 114 allows the relative pivoting of the handlebar 10 and the front leg 20, and the first locking mechanism 110 is in the unlocked state. The downward displacement of the transmission member 112 in the vertical direction drives the unlocking member 113 to be displaced downwards in the vertical direction, and the downward displacement of the unlocking member 113 in the vertical direction drives the first locking member 114 to slide from the first position to the second position.

[0075] Further, the seat plate 30 is provided with a connecting portion 302 and a mounting cover 301. The connecting portion 302 includes a connecting groove 3021, and the mounting cover 301 covers the connecting groove 3021. The transmission member 120 is arranged on a side of the mounting cover 301 facing the connecting groove 3021, and thus, the transmission member 120 is at least partially accommodated in the connecting groove 3021. The other end of the transmission member 120 opposite to the end provided with the second concave hole 1121 is provided with a first connecting hole 1122, a side of the unlocking member 113 away from the first locking member 114 is provided with a first connecting column 1131, and the first connecting column 1131 is inserted into the first connecting hole 1122, so that the transmission member 120 is fixedly connected to the unlocking member 113.

[0076] Specifically, when the user pulls the first operation portion 120, the driving member 111 pivots, and the first post 1111 drives the transmission member 112 to be displaced downwards in the vertical direction through the second concave hole 1121. The downward displacement of the transmission member 112 in the vertical direction drives the unlocking member 113 to be displaced downwards in the vertical direction. The unlocking member 113 presses the first locking member 114 when displaced downwards in the vertical direction, which forces the first locking member 114 from the first position to the second position, so that the first locking mechanism 110 gets into the unlocked state to allow the child carrier 1 to be folded.

[0077] Referring to FIG. 6, the first locking mechanism 110 further includes: a handlebar connecting member 115 and a front leg connecting member 116. The handlebar connecting member115 is fixedly connected to the handlebar 10, and the handlebar connecting member 115 is provided with a first accommodating portion 1151. The front leg connecting member 116 is fixedly connected to the front leg 20, and the front leg connecting member 116 is provided with a second accommodating portion 1161. The handlebar connecting member 115 is pivotably connected to the front leg connecting member 116, the first and second accommodating portions 1151, 1161 together form a locking member accommodating portion 117, and the first locking member 114 is slidably arranged in the locking member accommodating portion 117. In the first position, the first locking member 114 is simultaneously engaged with the handlebar connecting member 115 and the front leg connecting member 116 to limit the relative pivoting of the handlebar 10 and the front leg 20. In the second position, the first locking member 114 is disengaged from at least one of the handlebar connecting member 115 and the front leg connecting member 116 to allow the relative pivoting of the handlebar 10 and the front leg 20.

[0078] Specifically, when the first locking member 114 is moved from the first position to the second position, the first locking member 114 is disengaged from the front leg connecting member116 to allow the relative pivoting of the handlebar 10 and the front leg 20. Optionally, the first locking member 114 may be disengaged from the handlebar connecting member 115.

[0079] Further, a first reset member 140 is arranged between the first locking member 114 and the handlebar connecting member 115, and the first reset member 140 biases the first locking member 114 towards the first position. Specifically, the first reset member 140 is a spring. Optionally, the first reset member 140 may also have other suitable structures, such as a torsion spring, an elastic sheet, or the like, as long as the structure can satisfy the requirement of biasing the first locking member 114 towards the first position.

[0080] Further, the seat plate 30 is further provided with an annular connecting portion 3022, the front leg connecting member 116 is connected to one side of the annular connecting portion 3022, and an armrest holder 118 is pivotably connected to the other side of the annular connecting portion 3022. The armrest holder 118 is configured to be connected to the armrest 40, as will be described in further detail below.

[0081] Further, the annular connecting portion 3022 is arranged above the connecting groove 3021, and the annular connecting portion 3022 is provided with a second through hole 3023, so that the connecting groove 3021 is in communication with the annular connecting portion 3022. The front leg connecting member 116 is provided with a first through hole 1164, and the first through hole 1164 is in communication with the second accommodating portion 1161, and thus in communication with the locking member accommodating portion 117. When the front leg connecting member 116 is connected to the annular connecting portion 3022, the first through hole 1164 is aligned with the second through hole 3023, so that the transmission member 120 accommodated in the connecting groove 3021 can enter the second accommodating portion 1161 via the first through hole 1164 and the second through hole 3023 to be connected to the unlocking member 113.

[0082] Referring to FIG. 7a and FIG. 7b, FIG. 7a is a schematic structural diagram of the unlocking member; FIG. 7b is a schematic structural diagram of the first locking member. The unlocking member 13 includes: a first inclined surface 1132. The first locking member 114 includes: a second inclined surface 1141. The first inclined surface 1132 and the second inclined surface 1141 contact each other, and the first inclined surface 1132 and the second inclined surface 1141 are shaped so that: when the unlocking member 13 is displaced downwards in the vertical direction, the first inclined surface 1132 presses the second inclined surface 1141, so that the first locking member 114 slides away from the unlocking member 13, the first locking member 114 slides from the first position to the second position, the first locking member 114 is disengaged from the front leg connecting member 116, and thus, the first locking mechanism 110 is switched from the locked state to the unlocked state.

[0083] Referring also to FIG. 6 to FIG. 9 and FIG. 12, FIG. 8 is a partial exploded view of the child carrier according to an embodiment of the present application, in which the seat plate and the front leg connecting member are omitted, and the first locking mechanism is in the locked state; FIG. 9 is a partial enlarged view of portion C in FIG. 8; FIG. 12 is a sectional view taken along line Z-Z in FIG. 2, in which part of a structure of the child carrier is omitted and the first locking mechanism is in the locked state. The first accommodating portion 1151 is a substantially cylindrical cavity, acircumferential inner wall of the first accommodating portion 1151 is provided with first teeth 1152, and the first teeth 1152 are arranged at equal intervals along a circumferential direction of the first accommodating portion 1151. The second accommodating portion 1161 is a substantially cylindrical cavity, an inner wall of the second accommodating portion 1161 is provided with second teeth 1162, and the second teeth 1162 are arranged at equal intervals along a circumferential direction of the second accommodating portion 1161. The first locking member 114 has a substantially cylindrical structure, an outer circumference of the first locking member 114 is provided with third teeth 1142, and the third teeth 1142 are arranged at equal intervals along a circumferential direction of the first locking member 114. Moduli of the first teeth 1152, the second teeth 1162, and the third teeth 1142 are set so that the first teeth 1152 can be engaged with the second teeth 1162 and the third teeth 1142.

[0084] In the embodiment shown in FIG. 12, a second connecting column 1163 is arranged in the second accommodating portion 1161, the first locking member 114 is provided with a second connecting hole 1143, and the first locking member 114 is slidably connected to the front leg connecting member 116 by inserting the second connecting column 1163 into the second connecting hole 1143. The first locking member 114 is slidable along an axial direction of the second connecting column 1163 between the first position and the second position. Specifically, under the action of the first reset member 140, the first locking member 114 is in the first position, and the third teeth 1142 are simultaneously engaged with the first teeth 1152 and the second teeth 1162, thereby limiting relative pivoting of the handlebar connecting member 115 and the front leg connecting member 116, and thus limiting the relative pivoting of the handlebar 10 and the front leg 20.

[0085] Referring also to FIG. 6, FIG. 7a, FIG. 7b, FIG. 10, FIG. 11, and FIG. 13, FIG. 10 is a partial exploded view of the child carrier according to an embodiment of the present application, in which the seat plate and the front leg connecting member are omitted, and the first locking mechanism is in the unlocked state. FIG. 11 is a partial enlarged view of portion D in FIG. 10; FIG. 13 is a schematic diagram of the first locking mechanism of FIG. 12 in the unlocked state. When the user pulls the first operation portion 120, the driving member 111 pivots about the axis LI, which causes the transmission member 112 to be displaced downwards in the vertical direction (i.e., along the direction Hl), thereby causing the unlocking member 113 to be displaced downwards in the vertical direction (i.e., along the direction Hl). By pressing the second inclined surface 1141 with the first inclined surface, the first locking member 114 slides away from the unlocking member 113, and the first locking member 114 slides from the first position to the second position along the axial direction of the second connecting column 1163. At this point, the third tooth 1142 is disengaged from thesecond tooth 1162 to allow the relative pivoting of the handlebar connecting member 115 and the front leg connecting member 116, and thus allow the relative pivoting of the handlebar 10 and the front leg 20.

[0086] Referring to FIG. 15, FIG. 16, and FIG. 22 to FIG. 25, FIG. 15 is a schematic perspective diagram of the child carrier according to an embodiment of the present application, in which part of a structure of the seat plate is omitted; FIG. 16 is a partial enlarged view of portion F in FIG. 15; FIG. 22 is a schematic perspective diagram of the child carrier according to an embodiment of the present application, in which a second locking member 119 is in a third position; FIG. 23 is a partial enlarged view of portion J in FIG. 22; FIG. 24 is a schematic perspective diagram of the child carrier according to an embodiment of the present application, in which the second locking member 119 is in a fourth position; and FIG. 25 is a partial enlarged view of portion K in FIG. 22. The first locking mechanism 110 further includes: an armrest holder 118 and a second locking member 119. The armrest holder 118 is pivotably connected to a side of the front leg connecting member 116 away from the handlebar connecting member 115, and the armrest holder 118 is provided with a locking hole 1181 (refer to FIG. 23). The second locking member 119 is connected to the transmission member 112, and the second locking member 119 is movable between a third position and a fourth position in the vertical direction. In the third position, the second locking member 119 is engaged in the locking hole 1181 to limit pivoting of the armrest holder 118. In the fourth position, the second locking member 119 is disengaged from the locking hole 1181 to allow the pivoting of the armrest holder 118. The pivoting of the driving member 111 causes the transmission member 112 to be displaced downwards in the vertical direction (i.e., in the direction Hl), and the downward displacement of the transmission member 112 in the vertical direction drives the second locking member 119 to move from the third position to the fourth position.

[0087] Referring to FIG. 5 again, the transmission member 112 includes a connecting rod 1123, a convex portion 1124 is arranged on the connecting rod 1123, and the connecting rod 1123 is arranged between the second concave hole 1121 and the first connecting holell22. The connecting rod 1123 is sleeved with the second locking member 119, the second locking member 119 includes a through groove 1191, the through groove 1191 extends in the vertical direction, and the convex portion 1124 passes through the through groove 1191. When the transmission member 112 is displaced downwards in the vertical direction (i.e., in the direction Hl), the convex portion 1124 pushes against the through groove 1191 to drive the second locking member 119 to move from the third position to the fourth position. Optionally, a second reset member 150 is arranged between thesecond locking member 119 and the second concave hole 1121, one end of the second reset member 150 abuts against the second locking member 119, the other end of the second reset member 150 abuts against the second concave hole 1121, and the second reset member 150 biases the second locking member 119 towards the third position. Specifically, the second reset member 150 is a spring. Optionally, the second reset member 150 may also have other suitable structures, such as a torsion spring, an elastic sheet, or the like, as long as the structure can satisfy the requirement of biasing the second locking member 119 towards the third position.

[0088] Referring to FIG. 15, FIG. 16, FIG. 17a, and FIG. 17b, FIG. 17a is a bottom view of the child carrier according to an embodiment of the present application, in which the safety lock mechanism is in the secured state; FIG. 17b is a partial enlarged view of portion G in FIG. 17a. The safety lock mechanism 130 includes: a second operation portion 1301 and a pushing member 1302. The second operation portion 1301 is pivotably arranged on the child carrier 1. The second operation portion 1301 can pivot between a secured position and a free position. Optionally, the second operation portion 1301 is pivotably arranged on the seat plate 30, which facilitates the user to operate the second operation portion 1301. Specifically, the second operation portion 1301 is a button. Optionally, the second operation portion 1301 may have other suitable structures, such as a knob, a dial, or the like, as long as the structure meets the requirement that the second operation portion is pivotable between the secured position and the free position. The pushing member 1302 is pivotably arranged on the child carrier 1. Optionally, the pushing member 1302 is pivotably arranged on a lower side of the seat plate 30. The pushing member 1302 is pivotable about a pivot axis L2. The pushing member 1302 has a rod-shaped structure, a first end of the pushing member 1302 is operatively connected to the second operation portion 1301, and a second end of the pushing member 1302 opposite to the first end can enter or exit from the first concave hole 1112 of the driving member 111.

[0089] As shown in FIG. 16 and FIG. 17b, the second operation portion 1301 is in the secured position, and the second end of the pushing member 1302 is located in the first concave hole 1112. At this point, the safety lock mechanism 130 is in the secured state, and the pivoting of the driving member 111 about the pivot axis LI is restricted.

[0090] Referring to FIG. 18, FIG. 19, FIG. 20a, and FIG. 20b, FIG. 18 is a schematic perspective diagram of the child carrier according to an embodiment of the present application, in which part of the structure of the seat plate is omitted; FIG. 19 is a partial enlarged view of portion H in FIG. 18; FIG. 20a is a bottom view of the child carrier according to an embodiment of the present application, in which the safety lock mechanism is in the free state; FIG. 20b is a partial enlarged view of portionI in FIG. 20a. When the user presses the second operation portion 1301, the second operation portion 1301 enters the free position. The second operation portion 1301 drives the pushing member 1302 to pivot about the pivot axis L2, thereby causing the second end of the pushing member 1302 to be disengaged from the first concave hole 1112. At this point, the safety lock mechanism 130 is in the free state, and the pivoting of the driving member 111 about the pivot axis LI is not restricted.

[0091] By comparing FIG. 16 and FIG. 19, the second operation portion 1301 includes a third inclined surface 1303, and the first end of the pushing member 1302 is provided with a fourth inclined surface 1304. When the second operation portion 1301 is pivoted from the secured position to the free position, the third inclined surface 1303 presses the fourth inclined surface 1304 to pivot the pushing member 1302, the second end exits from the first concave hole 1112, and the safety lock mechanism 130 is switched to the free state. Optionally, the second end of the pushing member 1302 is provided with a second post 1305, and the second post 1305 can enter or exit from the first concave hole 1112 of the driving member 111. Optionally, a third reset member 1304 is further provided, one end of the third reset member 1304 abuts against the child carrier 1, the other end of the third reset member 1304 abuts against the pushing member 1302, and the third reset member 1304 biases the pushing member 1302 towards a direction causing the second end to enter the first concave hole 1112. Optionally, the third reset member 1304 is arranged on a lower side of the seat plate 30, one end of the third reset member 1304 abuts against the seat plate 30, and the other end of the third reset member 1304 abuts against the pushing member 1302. Specifically, the third reset member 1304 is a spring. Optionally, the third reset member 1304 may also have other suitable structures, such as a torsion spring, an elastic sheet, or the like, as long as the requirement of biasing the pushing member 1302 towards the direction causing the second end to enter the first concave hole 1112 can be met.

[0092] A working principle of the child carrier 1 having the folding system 100 according to an embodiment of the present application will be described with reference to FIG. 1, FIG. 5, FIG. 6, FIG. 9, FIG. 11, FIG. 16, FIG. 19, FIG. 21, FIG. 23, and FIG. 25. The child carrier 1 shown in FIG. 1 is in the unfolded state. When required to fold the child carrier 1, the user presses the second operation portion 1301 (e.g., a button) arranged on the seat plate 30, the third inclined surface 1303 of the second operation portion 1301 presses the fourth inclined surface 1304 of the pushing member 1032, the pushing member 1032 pivots about the pivot axis L2, the second post 1305 of the second end of the pushing member 1302 is disengaged from the first concave hole 1112, the safety lock mechanism 130 thus gets into the free state from the safety state, and the pivoting of the driving member 111 about the pivot axis LI is not limited. Thereafter, the user pulls the first operation portion 120 (e.g.,the pull rope), the driving member 111 pivots about the axis LI, the transmission member 112 is displaced downwards in the vertical direction (i.e., in the direction Hl), and the unlocking member 113 is displaced downwards in the vertical direction (i.e., in the direction Hl). By pressing the second inclined surface 1141 by the first inclined surface 1132, the first locking member 114 slides along the axial direction of the second connecting column 1163 from the first position to the second position, the third tooth 1142 is disengaged with the second tooth 1162, the first locking mechanism 110 gets into the unlocked state from the locked state, and at this point, the relative pivoting of the handlebar 10 and the front leg 20 is allowed, and the user can fold the handlebar 10 and the front leg 20 of the child carrier 1. When the transmission member 112 is displaced downwards in the vertical direction (i.e., along the direction Hl), the convex portion 1124 pushes against the through groove 1191, so that the second locking member 119 is displaced downwards in the vertical direction (i.e., along the direction Hl), and thus, the second locking member 119 is disengaged from the locking hole 1181, the pivoting of the armrest holder 118 is allowed, and the user can fold the armrest 40 of the child carrier 1. At this point, the child carrier 1 gets into the folded state, and the user can fold the child carrier 1 to the final folded state shown in FIG. 21.

[0093] When the child carrier 1 is in the unfolded state shown in FIG. 1, if the user does not press the second operation portion 1301 to make the safety lock mechanism 130 get into the free state from the secured state, but the user directly pulls the first operation portion 120 (for example, a child sitting in the child carrier 1 accidentally pulls the first operation portion 120), the second post 1305 of the second end of the pushing member 1302 is located in the first concave hole 1112 of the driving member 11, which restricts the pivoting of the driving member 111 about the pivot axis LI . Thus, the transmission member 112 cannot be displaced downwards in the vertical direction (i.e., along the direction Hl), so that the first locking mechanism 110 cannot get into the unlocked state from the locked state, and the second locking member 119 cannot be disengaged from the locking hole 1181. Therefore, the child carrier 1 cannot get into the folded state.

[0094] In the folding system 100 and the child carrier 1 according to the embodiments of the present application, the risk that the child carrier 1 is folded accidentally due to an unintentional touch of the first operation portion 120 is avoided by arranging the safety lock mechanism 130, thus improving safety of the child carrier 1.

[0095] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features are described in the embodiments. However, as long as there is no contradiction in the combinations ofthese technical features, the combinations should be considered as in the scope of the specification.

[0096] The above-described embodiments are only several implementations of the present application, and the descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present application. It should be noted that various changes and improvements can be made by those skilled in the art without departing from the concept of the application, and these changes and improvements are all within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

CLAIMS1. A folding system (100) for a child carrier (1), the child carrier (1) at least comprising a handlebar (10) and a front leg (20) pivotably connected to each other, wherein the folding system (100) comprises: a first locking mechanism (110) at least connected to the handlebar (10) and the front leg (20), the first locking mechanism (110) being switchable between a locked state and an unlocked state; a first operation portion (120) connected to the first locking mechanism (110) and configured to switch the first locking mechanism (110) from the locked state to the unlocked state, in the locked state, the first locking mechanism (110) restricting relative pivoting of the handlebar (10) and the front leg (20), and in the unlocked state, the first locking mechanism (110) allowing the relative pivoting of the handlebar (10) and the front leg (20); and a safety lock mechanism (130) connected to the first locking mechanism (110), the safety lock mechanism (130) being switchable between a secured state and a free state, in the secured state, the safety lock mechanism (130) preventing the first locking mechanism (110) from being switched to the unlocked state, and in the free state, the safety lock mechanism (130) allowing the first locking mechanism (110) to be switched to the unlocked state.

2. The folding system (100) according to claim 1, wherein the first locking mechanism (110) comprises: a driving member (111) pivotably arranged on the child carrier (1), the driving member (111) being connected to the first operation portion (120) and the safety lock mechanism (130), the driving member (111) being configured to be driven to pivot by the first operation portion (120), the safety lock mechanism (130) preventing the driving member (111) from pivoting when the safety lock mechanism (130) is in the secured state, and the safety lock mechanism (130) allowing the driving member (111) to pivot when the safety lock mechanism (130) is in the free state; and a transmission member (112) connected to the driving member (111), wherein the pivoting of the driving member (111) drives the transmission member (112) to be displaced, and downward displacement of the transmission member (112) in a vertical direction drives the first locking mechanism (110) to be switched from the locked state to the unlocked state.

3. The folding system (100) according to claim 2,wherein the driving member (111) comprises: a first post (1111) connected to the transmission member (112); and a first concave hole (1112), at least part of the safety lock mechanism (130) entering the first concave hole (1112) to prevent the driving member (111) from pivoting, or the safety lock mechanism (130) exiting from the first concave hole (1112) to allow the driving member (111) to pivot.

4. The folding system (100) according to claim 3, wherein the transmission member (112) comprises: a second concave hole ( 1121 ), the first post (1111) being connected in the second concave hole ( 1121 ).

5. The folding system (100) according to claim 2, wherein the first locking mechanism (110) further comprises: an unlocking member (113) connected to the transmission member (112); and a first locking member (114) connected to the unlocking member (113), the first locking member (114) being lockably connected to the handlebar (10) and the front leg (20), wherein the first locking member (114) is slidable between a first position and a second position, and in the first position, the first locking member (114) limits the relative pivoting of the handlebar (10) and the front leg (20), and the first locking mechanism (110) is in the locked state; in the second position, the first locking member (114) allows the relative pivoting of the handlebar (10) and the front leg (20), and the first locking mechanism (110) is in the unlocked state, the displacement of the transmission member (112) drives the unlocking member (113) to be displaced, and the displacement of the unlocking member (113) drives the first locking member (114) to slide from the first position to the second position.

6. The folding system (100) according to claim 5, wherein the first locking mechanism (110) further comprises: a handlebar connecting member (115) fixedly connected to the handlebar (10), the handlebar connecting member (115) being provided with a first accommodating portion (1151); and a front leg connecting member (116) fixedly connected to the front leg (20), the front leg connecting member (116) being provided with a second accommodating portion (1161), wherein the handlebar connecting member (115) and the front leg connecting member (116) arepivotably connected, the first accommodating portion (1151) and the second accommodating portion (1161) together form a locking member accommodating portion (117), and the first locking member (114) is slidably arranged in the locking member accommodating portion (117), in the first position, the first locking member (114) is simultaneously engaged with the handlebar connecting member (115) and the front leg connecting member (116) to limit the relative pivoting of the handlebar (10) and the front leg (20); in the second position, the first locking member (114) is disengaged from at least one of the handlebar connecting member (115) and the front leg connecting member (116) to allow the relative pivoting of the handlebar (10) and the front leg (20).

7. The folding system (100) according to claim 5, wherein a first connecting column (1131) is arranged on a side of the unlocking member (113) away from the first locking member (114), the transmission member (112) is provided with a first connecting hole (1122), and the first connecting column (1131) is inserted into the first connecting hole (1122) to connect the unlocking member (113) to the transmission member (112).

8. The folding system (100) according to claim 6, wherein the unlocking member (113) comprises: a first inclined surface (1132), the first locking member (114) comprises: a second inclined surface (1141), the first inclined surface (1132) and the second inclined surface (1141) contact each other, and when the driving member is displaced to drive the unlocking member (113) to be displaced, the first inclined surface (1132) presses the second inclined surface (1141), so that the first locking member (114) slides away from the unlocking member (113), the first locking member (114) slides from the first position to the second position, and the first locking member (114) is disengaged from the front leg connecting member (116).

9. The folding system (100) according to claim 6, wherein an inner wall of the first accommodating portion (1151) is provided with first teeth (1152), an inner wall of the second accommodating portion (1161) is provided with second teeth (1162), and an outer circumference of the first locking member (114) is provided with third teeth (1142), in the first position, the third teeth (1142) are simultaneously engaged with the first teeth (1152) and the second teeth (1162) to limit the relative pivoting of the handlebar (10) and the front leg (20); inthe second position, the third teeth (1142) are disengaged with the second teeth (1162) to allow the relative pivoting of the handlebar (10) and the front leg (20).

10. The folding system (100) according to claim 6, wherein a second connecting column (1163) is arranged in the second accommodating portion (1161), the first locking member (114) is provided with a second connecting hole (1143), and the first locking member (114) is slidably connected to the front leg connecting member (116) by inserting the second connecting column (1163) into the second connecting hole (1143).

11. The folding system (100) according to claim 6, further comprising: a first reset member (140) arranged between the first locking member (114) and the handlebar connecting member (115), the first reset member (140) biasing the first locking member (114) towards the first position.

12. The folding system (100) according to claim 2, wherein the first locking mechanism (110) further comprises: an armrest holder (118) pivotably connected to the child carrier (1), the armrest holder (118) being provided with a locking hole (1181); and a second locking member (119) connected to the transmission member (112), the second locking member (119) being movable between a third position and a fourth position, in the third position, the second locking member (119) being engaged in the locking hole (1181) to restrict pivoting of the armrest holder (118), and in the fourth position, the second locking member (119) being disengaged from the locking hole (1181) to allow the pivoting of the armrest holder (118), wherein the pivoting of the driving member (111) displaces the transmission member (112), and the displacement of the transmission member (112) drives the second locking member (119) to move from the third position to the fourth position.

13. The folding system (100) according to claim 12, wherein the transmission member (112) comprises a connecting rod (1123), and a convex portion (1124) is arranged on the connecting rod (1123), the connecting rod (1123) is sleeved with the second locking member (119), the second lockingmember (119) comprises a through groove (1191), and the convex portion (1124) is extended through the through groove (1191), when the transmission member (112) is driven by the driving member (111) to be displaced, the convex portion (1124) pushes against the through groove (1191) to drive the second locking member (119) to move from the third position to the fourth position.

14. The folding system (100) according to claim 13, further comprising: a second reset member (150) arranged between the second locking member (119) and at least part of the transmission member (112), the second reset member (150) biasing the second locking member (119) towards the third position.

15. The folding system (100) according to claim 6, wherein the first locking mechanism (110) further comprises: an armrest holder (118) pivotably connected to a side of the front leg connecting member (116) away from the handlebar connecting member (115), the armrest holder (118) being provided with a locking hole (1181); and a second locking member (119) connected to the transmission member (112), the second locking member (119) being movable between a third position and a fourth position, in the third position, the second locking member (119) being engaged in the locking hole (1181) to restrict pivoting of the armrest holder (118), and in the fourth position, the second locking member (119) being disengaged from the locking hole (1181) to allow the pivoting of the armrest holder (118), wherein the pivoting of the driving member (111) displaces the transmission member (112) downwards in the vertical direction, and the downward displacement of the transmission member (112) in the vertical direction drives the second locking member (119) to move from the third position to the fourth position.

16. The folding system (100) according to claim 15, wherein the transmission member (112) comprises a connecting rod (1123), a convex portion (1124) is arranged on the connecting rod (1123), and the connecting rod (1123) is arranged between the second concave hole (1121) and the first connecting hole (1122), the connecting rod (1123) is sleeved with the second locking member (119), the second lockingmember (119) comprises a through groove (1191), the through groove (1191) extends in the vertical direction, and the convex portion (1124) is extended through the through groove (1191), when the transmission member (112) is displaced downwards in the vertical direction, the convex portion (1124) pushes against the through groove (1191) to drive the second locking member (119) to move from the third position to the fourth position.

17. The folding system (100) according to claim 16, further comprising: a second reset member (150) arranged between the second locking member (119) and the second concave hole (1121), one end of the second reset member (150) abutting against the second locking member (119), the other end of the second reset member (150) abutting against the second concave hole (1121), and the second reset member (150) biasing the second locking member (119) towards the third position.

18. The folding system (100) according to any one of claims 3 to 17, wherein the safety lock mechanism (130) comprises: a second operation portion (1301) pivotably arranged on the child carrier (1), the second operation portion (1301) being pivotable between a secured position and a free position; and a pushing member (1302) pivotably arranged on the child carrier (1), a first end of the pushing member (1302) being operatively connected to the second operation portion (1301), and a second end of the pushing member (1302) opposite to the first end being capable of entering or exiting from the first concave hole (1112) of the driving member (111), in the secured position, the second end of the pushing member (1302) enters the first concave hole (1112), and the safety lock mechanism (130) is in the secured state; in the free position, the second end of the pushing member (1302) exits from the first concave hole (1112), and the safety lock mechanism (130) is in the free state.

19. The folding system (100) according to claim 18, wherein the second operation portion (1301) comprises a third inclined surface (1303), and the first end of the pushing member (1302) is provided with a fourth inclined surface (1304), and when the second operation portion (1301) is pivoted from the secured position to the free position, the third inclined surface (1303) presses the fourth inclined surface (1304) to pivot the pushing member (1302),the second end exits from the first concave hole (1112), and the safety lock mechanism (130) is switched to the free state.

20. The folding system (100) according to claim 18, wherein the second end of the pushing member (1302) is provided with a second post (1305), and the second post (1305) can enter or exit from the first concave hole (1112) of the driving member (111).

21. The folding system (100) according to claim 18, further comprising: a third reset member (1304), one end of the third reset member (1304) abutting against the child carrier, the other end of the third reset member (1304) abutting against the pushing member (1302), and the third reset member (1304) biasing the pushing member (1302) in a direction causing the second end to enter the first concave hole (1112).