Restraining device, canopy attachment structure, and child carrier

Abstract

Providing a Canopy Attachment Structure and a Child Carrier 【Solution】A child carrier (1) including a restricting device (100) and a canopy attachment structure is disclosed. The restricting device (100) is configured to operably restrict the rotational angle of a first object relative to a second object. The restricting device (100) includes a housing (110) disposed between the first object and the second object and including at least one restricting groove (111), and a restricting member (120) disposed between the first object and the second object and movable between a restricting position and a non-restricting position relative to the housing (110) via the restricting groove (111). When in the restricting position, the restricting member (111) prevents the first object from rotating relative to the second object in a first rotational direction, and allows the first object to rotate relative to the second object in a second rotational direction opposite to the first rotational direction.

Description

Technical Field

[0001] The present disclosure relates to the field of child carrier technology, and more particularly to a limiting device, a canopy mounting structure, and a child carrier.

Background Art

[0002] A child carrier is a common infant carrier. A child carrier generally includes a handle frame, a back frame, a seat, and wheels. In existing child carriers, there are some in which the back frame is provided to be angle-adjustable with respect to the seat. That is, the back frame is adjustable to tilt forward and backward with respect to the seat.

Summary of the Invention

Problems to be Solved by the Invention

[0003] However, if the back frame tilts forward excessively, there may be a safety problem that the child may fall out of the baby carrier.

Means for Solving the Problems

[0004] A first aspect of the present disclosure provides a limiting device for operably limiting the rotational angle of a first object with respect to a second object. The limiting device includes a housing disposed between the first object and the second object and including at least one limiting groove, and a limiting member disposed between the first object and the second object and movable between a limiting position and a non-limiting position with respect to the housing via at least one limiting groove. When the limiting member is in the limiting position, the limiting member prevents the first object from rotating relative to the second object in a first rotational direction and allows the first object to rotate relative to the second object in a second rotational direction opposite to the first rotational direction.

[0005] In a first aspect of the present disclosure, an actuating device is further disposed between a first object and a second object, and the limiting device further includes a first reset member configured to bias a limiting member toward a limiting position. The limiting member is drivably connected to the actuating device, and the actuating device is operable to actuate the limiting member to a non-limiting position.

[0006] In a first aspect of the present disclosure, the limiting device further includes a first traction member having an end connected to the limiting member and another end connected to the actuating device. The actuating device is operable to actuate the limiting member to a non-limiting position via the first traction member.

[0007] In a first aspect of the present disclosure, the limiting device further includes an engagement pin disposed on the first object, the engagement pin being rotatable with the first object and lockable in at least one limiting groove. The limiting member is disposed on a side surface of at least one limiting groove, and the limiting member can prevent the disengagement of the engagement pin from the at least one limiting groove when in the limiting position.

[0008] In a first aspect of the present disclosure, the housing is attached to the second object and pivotally connected to the first object. A plurality of limiting grooves are continuously provided around the pivot axis of the first object along its pivoting direction on a side surface of the housing adjacent to the first object. The engagement pin has an end inserted into the plurality of limiting grooves from the side surface of the housing and another end inserted into the first object. The engagement pin is movable between a low position where the engagement pin is locked in one of the plurality of limiting grooves and a high position where the engagement pin is disposed beyond one of the plurality of limiting grooves with respect to the housing.

[0009] In a first aspect of the present disclosure, each of the plurality of limiting grooves has an arcuate wall, and the arcuate walls of the plurality of limiting grooves are connected. Each of the arcuate walls has a rear surface with a concave arcuate surface on a side away from the limiting member and a front surface with an inclined surface or a convex arcuate surface on another side facing the limiting member.

[0010] In a first aspect of the present disclosure, the engagement pin extends parallel to the pivot axis.

[0011] In a first aspect of the present disclosure, the first object is in the shape of a hollow tube, has an elongated groove facing the limiting device, and is a slider disposed within the first object, into which the engagement pin is inserted and is drivable by the slider to move between a low position and a high position, a second traction member having an end connected to the slider and another end connected to a backframe operating member disposed on the first object, the backframe operating member being operable to drive the engagement pin to move to the high position via the second traction member and the slider, and a second reset member disposed within the first object and biasing the slider to drive the engagement pin to the low position.

[0012] In a first aspect of the present disclosure, the housing includes a first housing fixed to the first object and having at least one limiting groove, and a second housing fixed to the second object and disposed on the opposite side of the first housing along the rotation axis, the first housing being rotatable about the rotation axis relative to the second housing. The limiting member is disposed within the second housing.

[0013] In a first aspect of the present disclosure, the operating device is further disposed between the first object and the second object, and the limiting device further includes a driving member joined to the limiting member and drivable to drive the limiting member to a limiting position or a non-limiting position, and a first reset member biasing the driving member to bias the limiting member to the limiting position. The limiting member is drivably connected to the driving device, and the operating device is operable to operate the limiting member to the non-limiting position via the driving member.

[0014] In a first aspect of the present disclosure, the limiting device further includes a first traction member, and the operating device is connected to the driving member via the first traction member.

[0015] In a first aspect of the present disclosure, the drive member includes a drive groove. The limiting device further includes a drive pin fixed to the limiting member and slidably inserted into the drive groove, and the limiting member is movable between a limiting position and a non-limiting position via the sliding of the drive pin.

[0016] In a first aspect of the present disclosure, the limiting groove is formed radially inward from the circumferential side wall of the first housing and has an opening on the radially outer side.

[0017] In a first aspect of the present disclosure, the limiting member includes a first limiting member end facing the first housing and having a limiting head forward surface inclined rearward with respect to the first rotational direction, and a second limiting member end on the side opposite to the first limiting member end and away from the first housing.

[0018] In a first aspect of the present disclosure, the limiting device further includes a locking member disposed between the first housing and the second housing and movable between a locked position and an unlocked position. The locking member prevents relative rotation between the first housing and the second housing when the locking member is in the locked position, and the locking member allows relative rotation between the first housing and the second housing when the locking member is in the unlocked position.

[0019] In a first aspect of the present disclosure, the first housing includes a slide groove formed inside the first housing and extending radially, and the locking member is disposed in the slide groove and rotates around the rotation axis together with the first housing.

[0020] In a first aspect of the present disclosure, the first housing includes a first shaft hole that penetrates the first housing along a rotation axis, and a first shaft hole wall that rises from the axial direction of the first housing to form a columnar wall. The lock member includes an elongated hole disposed in the lock member, and the elongated hole sleeves the first shaft hole wall. The limiting device further includes a lock reset member disposed in the elongated hole, and two ends of the lock reset member are respectively in contact with the first shaft hole wall and the end of the elongated hole, biasing the lock member toward the locked position.

[0021] In a first aspect of the present disclosure, the second housing includes a second disc portion, a second shaft hole disposed in the second disc portion, at least one first lock groove disposed inside the peripheral edge of the second disc portion, and at least one second lock groove disposed between the peripheral edge of the second disc portion and the second shaft hole. The lock member includes a first lock portion located at a first end of the lock member and a second lock portion located at a second end of the lock member, and the positions of the first end and the second end are different. When the lock member is in the locked position, the first lock portion and the second lock portion engage with the first lock groove and the second lock groove respectively.

[0022] In a first aspect of the present disclosure, the first end and the second end are disposed on opposite sides of each other.

[0023] In a first aspect of the present disclosure, a plurality of first lock grooves are disposed in the circumferential direction. The plurality of second lock grooves are disposed in the circumferential direction. The positions of the first lock groove and the second lock groove are such that when the first object is in the first rotational position and when the first object is in at least one second rotational position in a second rotational direction with respect to the first rotational position, the first lock portion and the second lock portion can engage with different first lock grooves and second lock grooves respectively.

[0024] In a first aspect of the present disclosure, the first locking portion includes at least one first locking tooth. The second locking portion includes at least one second locking tooth. When the locking member is in the locked position, the first locking tooth is inserted into at least one first locking groove, and the second locking tooth is inserted into at least one second locking groove.

[0025] In a first aspect of the present disclosure, the first locking tooth and the second locking tooth are each formed as a ratchet tooth and each have a first front surface and a second front surface that are inclined rearward along a first rotation direction.

[0026] In a first aspect of the present disclosure, the first locking groove is disposed on the inner circumferential side of the outer circumferential surface of the second disk portion, and the second locking groove is disposed between the outer circumferential surface of the second disk portion and the second shaft hole and is substantially radially opposed to the first locking groove.

[0027] In a first aspect of the present disclosure, the first housing further includes a first disk portion formed in a disk shape with an axially closed end, and a first rod portion extending from a peripheral edge of the first disk portion and connected to a first object. The second housing includes a second disk portion formed in a disk shape with an axially closed end, and a second rod portion extending from the outer periphery of the second disk portion and connected to a second object. The first disk portion and the second disk portion are rotatably fixed to each other about a rotation axis and form a cylindrical box-shaped structure with two axially closed ends.

[0028] In a first aspect of the present disclosure, the first housing is provided with a limiting groove. When the first object is in a first rotational position relative to the second object, the limiting groove is aligned with a limiting member, and the limiting member extends into the limiting groove and enters a limiting position, and then engages with the first housing.

[0029] In a first aspect of the present disclosure, when the first object is not in a first rotational position relative to the second object, the limiting groove is not aligned with the limiting member so as not to allow the limiting member to extend into the limiting groove and enter the limiting position.

[0030] In a first aspect of the present disclosure, when the first object is not in a first rotational position relative to the second object, the limiting member abuts against the peripheral edge of the first housing.

[0031] In a first aspect of the present disclosure, the limiting member linearly moves along a first sliding direction perpendicular to the rotation axis, the driving member moves on the second object along a second sliding direction, the second sliding direction is perpendicular to the rotation axis and forms an angle with the first sliding direction.

[0032] In a first aspect of the present disclosure, the driving groove is arranged at the end of the driving member close to the limiting member and extends perpendicular to the second sliding direction, and the driving pin extends parallel to the rotation axis.

[0033] It includes a vehicle frame, a seat frame arranged on the vehicle frame, a back frame joined to the rear end of the seat frame, and a limiting device according to the first aspect of the present disclosure. The limiting device is connected between the seat frame and the back frame. The first object is the back frame, and the second object is the seat frame.

[0034] In a second aspect of the present disclosure, the back frame is pivotally connected to the seat frame and is pivotable between a first position away from the seat frame and a second position towards the seat frame about a back frame pivot axis relative to the seat frame, and the limiting member limits excessive forward tilting of the back frame relative to the second position.

[0035] In a second aspect of the present disclosure, the first rotational direction is the forward tilting rotational direction of the back frame, the second rotational direction is the rearward tilting rotational direction of the back frame, and the first rotational position is the maximum forward tilting position of the back frame in the use state.

[0036] In a second aspect of the present disclosure, the vehicle frame further includes a seat tube, and the seat frame is arranged on the seat tube such that the seat frame is slidable back and forth.

[0037] In a second aspect of the present disclosure, the vehicle frame further includes an armrest frame disposed on two outer sides of the back frame, and a handle frame disposed outside the armrest frame and pivotally connected to the armrest frame, the handle frame being pivotable relative to the seat frame about a handle pivot axis substantially parallel to the back frame pivot axis. The child carrier further includes a first sliding sleeve that sleeves the lower end of the handle frame and is close to the handle pivot axis, and a handle frame operating member operably connected to the first sliding sleeve and operable to pull the first sliding sleeve in a direction away from the handle pivot axis, thereby driving the limiting member to move to the limiting position.

[0038] In a second aspect of the present disclosure, the link member is disposed on the side of the armrest frame facing the handle frame, the link member is slidable on the armrest frame, the first sliding sleeve is joined to the link member, and the slide of the first sliding sleeve away from the handle pivot axis can drive the link member to slide, thereby bringing the limiting member to the non-limiting position.

[0039] In a second aspect of the present disclosure, the first sliding sleeve includes a first sliding sleeve protrusion extending toward the armrest frame, the link member includes a link member protrusion extending toward the handle frame, and the first sliding sleeve protrusion is adjacent to the link member protrusion.

[0040] In a second aspect of the present disclosure, the armrest frame is fixed to the link member and further includes a connector inserted into the armrest frame. The link member protrusion extends from the connector toward the handle frame, and a fourth reset member is disposed between the connector and the armrest frame to keep the link member protrusion always in contact with the first sliding sleeve protrusion.

[0041] In a second aspect of the present disclosure, the vehicle frame further includes a seat tube, and the seat frame is disposed on the seat tube such that the seat frame is slidable back and forth. The restricting device is fixed to the seat frame so as to slide longitudinally on the seat tube together with the seat frame.

[0042] In a second aspect of the present disclosure, the handle frame further includes a third towing member disposed inside the handle frame and having two ends respectively connected to the first slide sleeve and the handle frame operating member. The handle frame operating member is disposed outside the handle frame, and the handle frame operating member is operable to drive the first slide sleeve to move along the handle frame via the third towing member.

[0043] In a second aspect of the present disclosure, the armrest frame is joined to the side surface of the seat frame and is pivotable between an unfold position and a collapse position with respect to the seat frame. Two ends of the first towing member are respectively connected to the restricting member and the armrest frame.

[0044] In a second aspect of the present disclosure, the child carrier further includes a connecting seat disposed at an end of the seat frame close to the back frame. The connecting seat includes a connecting seat body, a towing member groove disposed on a side of the connecting seat body spaced apart from the seat frame, a first towing member passing through the towing member groove and connected to the armrest frame, and a towing member sleeve accommodating portion disposed at an end of the towing member groove. The width of the towing member sleeve accommodating portion is larger than the width of the towing member groove.

[0045] In a second aspect of the present disclosure, the first traction member includes a cable sleeve and a cable slidably passed through the cable sleeve. Two ends of the cable are respectively connected to a limiting member and an armrest frame via a connecting sheet, and two ends of the cable sleeve are respectively connected to a housing and a connecting sheet. When the armrest frame rotates from the deployed position to the folded position, the armrest frame drives the limiting member to the unrestricted position via the first traction member.

[0046] In a second aspect of the present disclosure, the child carrier further includes a limiting block fixed to the vehicle frame. The seat frame is disposed on the vehicle frame and is movable relative to the limiting block, the back frame is rotatably connected to the seat frame, the back frame has a movable end located between the seat frame and the limiting block, and the movable end is restricted and fixed when the vehicle frame is in the deployed state.

[0047] In a second aspect of the present disclosure, the child carrier further includes a limiting block fixed to the vehicle frame. The back frame is rotatably attached to the vehicle frame, the back frame has a movable end, the limiting block is disposed adjacent to the movable end, and when the vehicle frame switches from the deployed state to the folded state, the limiting block presses against the movable end to assist the back frame to rotate and fold relative to the vehicle frame.

[0048] In a second aspect of the present disclosure, the child carrier further includes a canopy including a main canopy frame and a canopy mounting structure configured to attach the canopy to the vehicle frame or the back frame. The canopy mounting structure includes a mounting sheet disposed on the vehicle frame or the back frame and a connecting sheet disposed on the main canopy frame. The connecting sheet is detachably connected to the mounting sheet by a magnet.

[0049] A third aspect of the present disclosure provides a child carrier. The child carrier includes a vehicle frame, a restraint block fixed to the vehicle frame, a seat frame disposed on the vehicle frame and movable relative to the restraint block, and a back frame rotatably connected to the seat frame and having a movable end. The movable end is located between the seat frame and the restraint block and is configured to be restricted and fixed when the vehicle frame is in the deployed state.

[0050] In the third aspect of the present disclosure, the seat frame has a clamping portion. When the vehicle frame is in the deployed state, two side surfaces of the movable end respectively abut against the restraint block and the clamping portion. When the vehicle frame switches from the deployed state to the folded state, the movable end separates from the clamping portion, and the restraint block is pressed against the movable end to pivot relative to the seat frame.

[0051] In the third aspect of the present disclosure, the vehicle frame includes a seat tube, the restraint block is fixed to the seat tube, and the seat frame is slidably disposed on the seat tube.

[0052] In the third aspect of the present disclosure, the restraint block has a bulge extending toward the movable end. When the vehicle frame is switched from the deployed state to the folded state, the bulge is pressed against the movable end to pivotally drive the back frame.

[0053] In the third aspect of the present disclosure, when the vehicle frame is in the folded state, the seat frame is separated from the movable end, and the restraint block abuts against the movable end to limit the rotation of the back frame.

[0054] In the third aspect of the present disclosure, the restraint block has a first end face and a second end face. The side surfaces of the first end face and the second end face meet to form a bulge. The first end face abuts against the movable end when the vehicle frame is in the deployed state, and the second end face abuts against the movable end when the vehicle frame is in the folded state.

[0055] In a third aspect of the present disclosure, the vehicle frame includes a seat tube, and the child carrier further includes a tie-down member. Two ends of the tie-down member are respectively connected to the back frame and the vehicle frame, and the tie-down member can limit the pivoting of the back frame in a direction approaching the seat tube when the vehicle frame is in a deployed state.

[0056] In a third aspect of the present disclosure, the tie-down member is a webbing.

[0057] In a third aspect of the present disclosure, the vehicle frame further includes a seat tube and a handle frame. The handle frame is pivotally connected to the seat tube, and the handle frame is operable to drive the overall folding of the vehicle frame.

[0058] In a third aspect of the present disclosure, the child carrier further includes a link assembly, and the vehicle frame includes a handle frame. The link assembly is connected between the handle frame and the seat frame, and when the handle frame rotates, it drives the seat frame to slide relative to the limiting block.

[0059] In a third aspect of the present disclosure, the child carrier further includes a link assembly, the vehicle frame includes a seat tube and a handle frame, the limiting block is fixed to the seat tube, the seat frame is movably arranged on the seat tube, and the rotation of the handle frame in a direction close to the seat tube can drive the seat frame to move away from the limiting block along the seat tube through the link assembly.

[0060] In a third aspect of the present disclosure, the child carrier further includes a link assembly. The link assembly includes a first connecting rod and a second connecting rod. One end of the first connecting rod is connected to the vehicle frame and is rotatable with the rotation of the handle frame. Another end of the first connecting rod is pivotally connected to an end of the second connecting rod. Another end of the second connecting rod, which is away from the first connecting rod, is pivotally connected to the seat frame.

[0061] In a third aspect of the present disclosure, the link assembly further includes a pivot pin. The handle frame is connected to an end of the pivot pin, and an end of the first connecting rod is fixedly connected to the pivot pin.

[0062] In a third aspect of the present disclosure, the child carrier further includes a locking mechanism. The vehicle frame further includes a handle frame, an auxiliary frame, a link frame, and a rear leg support frame. The auxiliary frame is fixedly connected to the handle frame. One end of the link frame is rotatably connected to the rear leg support frame, and the other end is rotatably connected to the auxiliary frame. The locking mechanism is disposed between the auxiliary frame and the link frame. When the locking mechanism is in the unlocked state, the link frame is rotatable relative to the auxiliary frame. When the locking mechanism is in the locked state, the link frame is fixed relative to the auxiliary frame.

[0063] In a third aspect of the present disclosure, the child carrier further includes a link assembly and a pivot pin. The link assembly includes a first connecting rod and a second connecting rod. One end of the first connecting rod is connected to the vehicle frame and is rotatable with the rotation of the handle frame. Another end of the first connecting rod is pivotally connected to an end of the second connecting rod. Another end of the second connecting rod, which is away from the first connecting rod, is pivotally connected to the seat frame. The auxiliary frame and the link frame are both rotatably connected to the vehicle frame via the pivot pin, and an end of the first connecting rod is fixedly connected to the pivot pin.

[0064] A fourth aspect of the present disclosure provides a child carrier. The child carrier includes a vehicle frame, a restraint block fixed to the vehicle frame, and a back frame rotatably attached to the vehicle frame and having a movable end. The restraint block is disposed adjacent to the movable end and is pressed against the movable end when the vehicle frame switches from the deployed state to the folded state, assisting the back frame to pivot and fold relative to the vehicle frame.

[0065] In a fourth aspect of the present disclosure, the child carrier further includes a seat frame disposed on the vehicle frame and movable relative to the restraint block. The seat frame is movable relative to the restraint block, and when the vehicle frame is in the deployed state, the movable end is held between the restraint block and the seat frame.

[0066] In a fourth aspect of the present disclosure, the child carrier further includes a seat frame disposed on the vehicle frame and movable relative to the restraint block. The seat frame is movable relative to the restraint block, and the back frame is pivotally connected to the seat frame. During the switching of the vehicle frame from the deployed state to the folded state, the movable end moves away from the seat frame, and the restraint block is pressed against the movable end to pivot relative to the seat frame.

[0067] In a fourth aspect of the present disclosure, when the vehicle frame is in the folded state, the restraint block abuts against the movable end to limit the rotation of the back frame.

[0068] In a fourth aspect of the present disclosure, when the vehicle frame is in the deployed state and the folded state, the movable end abuts against different portions of the restraint block, respectively.

[0069] In a fourth aspect of the present disclosure, the child carrier further includes a backrest plate and an adjustment harness. The backrest plate is disposed in a rotatable manner with respect to the back frame. The back frame includes two back frame vertical portions disposed on two sides of the vehicle frame. One end of the adjustment harness is fixed to one of the back frame vertical portions, and the other end of the adjustment harness bypasses the backrest plate and is fixed to the other of the back frame vertical portions. The adjustment harness is adjustable in length.

[0070] A fifth aspect of the present disclosure provides a canopy attachment structure for attaching a canopy to the carrier. The canopy includes a main canopy frame. The canopy attachment structure includes an attachment sheet disposed on the carrier and a connection sheet disposed on the main canopy frame. The connection sheet is detachably connected to the attachment sheet by a magnet attachment.

[0071] In a fifth aspect of the present disclosure, the connection sheet is movable laterally so as to be magnetically attached to the attachment sheet or removed from the attachment sheet.

[0072] In a fifth aspect of the present disclosure, the attachment sheet includes a first positioning portion. The first positioning portion includes a first magnetic member. The connection sheet includes a second positioning portion. The second positioning portion is configured to be connected to the first positioning portion. The second positioning portion includes a second magnetic member. The first magnetic member and the second magnetic member are attached to each other so that the first positioning portion and the second positioning portion remain connected.

[0073] In a fifth aspect of the present disclosure, one of the first positioning portion and the second positioning portion is a recess, and the other is a lug, and the recess engages with the lug.

[0074] In a fifth aspect of the present disclosure, the first magnetic member and the mounting sheet are attached together or connected together by overmolding, and the second magnetic member and the connecting sheet are attached together or connected together by overmolding.

[0075] In a fifth aspect of the present disclosure, a receiving cavity is disposed on an end face of a lug facing the recess, one of the first magnetic member and the second magnetic member is disposed in the recess, and the other of the first magnetic member and the second magnetic member is disposed in the receiving cavity.

[0076] In a fifth aspect of the present disclosure, both the recess and the lug extend along a lateral direction, and a rotation limiting structure is disposed between the recess and the lug.

[0077] In a fifth aspect of the present disclosure, the rotation limiting structure includes a guide rib and a guide groove that fit together, and one of the guide rib and the guide groove is disposed on an inner peripheral wall of the recess, and the other of the guide rib and the guide groove is disposed on an outer peripheral wall of the lug.

[0078] In a fifth aspect of the present disclosure, the mounting sheet is fastened to a vehicle frame and a back frame via a first fastener, and the first magnet member is attached to the mounting sheet via the first fastener.

[0079] In a fifth aspect of the present disclosure, the canopy further includes an auxiliary canopy frame having a pivoting seat. The pivoting seat is rotatably fastened to the connecting sheet via a second fastener, and the second magnet member is attached to the connecting sheet via the second fastener.

[0080] In a fifth aspect of the present disclosure, a pivotal adjustment structure is disposed between the connecting sheet and the pivotal sheet, and the pivotal adjustment structure is configured to adjust the relative position between the main canopy frame and the auxiliary canopy frame. And / or, a pivotal limiting structure is disposed between the connecting sheet and the pivotal sheet, and the pivotal limiting structure is configured to limit the pivotal angle between the main canopy frame and the auxiliary canopy frame.

[0081] In a fifth aspect of the present disclosure, one of the connecting sheet and the pivotal sheet is provided with an annular groove, the other of the connecting sheet and the pivotal sheet is provided with an annular wall, and the side wall of the annular groove faces the annular wall. The pivotal adjustment structure includes one or more slots disposed on one of the side wall of the annular groove and the annular wall, and one or more protrusions disposed on the other of the side wall of the annular groove and the annular wall. The one or more slots selectively engage with the one or more protrusions.

[0082] In a fifth aspect of the present disclosure, the annular wall is disposed on a locking ring detachably connected to the connecting sheet, and the locking ring is connected to the connecting sheet without relative rotation therebetween.

[0083] In a fifth aspect of the present disclosure, the pivotal limiting structure includes a first arc-shaped block disposed on one of the connecting sheet and the pivotal sheet, and a second arc-shaped block disposed on the other of the connecting sheet and the pivotal sheet. When the auxiliary canopy frame rotates relative to the main canopy frame, the first arc-shaped block selectively abuts against the second arc-shaped block.

[0084] A sixth aspect of the present disclosure provides a child carrier. The child carrier includes a carrier and a canopy. The canopy is attached to the carrier via a canopy attachment structure according to the fifth aspect of the present disclosure.

Brief Description of the Drawings

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DETAILED DESCRIPTION OF THE INVENTION

[0086] To make the objectives, technical solutions, and advantages of the present disclosure clearer, the present disclosure will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to interpret the present disclosure and are not intended to limit the protection scope of the present disclosure.

[0087] It should be noted that when an element is said to be "fixed to" another element, it may be directly disposed on the other element or there may be an intermediate element. When an element is said to be "connected to" another element, it may be directly connected to the other element or an intermediate element may coexist. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to represent a specific embodiment.

[0088] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the present disclosure. The terms used in the specification of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0089] As shown in FIGS. 1 and 2, one embodiment of the present disclosure provides a child carrier 1. The child carrier 1 includes a restraint device 100, a seat frame 200, a vehicle frame 300, and a back frame 400.

[0090] As shown in FIGS. 1 to 3, the vehicle frame 300 includes a seat tube 310, a handle frame 320, an armrest frame 370, an auxiliary frame 330, a link frame 380, a front leg support frame 340, and a rear leg support frame 350. In the present embodiment, two seat tubes 310 are provided and arranged opposite to each other, and two seat frames 200 are also provided and slidably arranged on the two seat tubes 310, respectively. The seat body 660 of the child carrier 1 can be fixed to the vehicle frame 300 via the two seat frames 200 on the left and right for use by an infant. The handle frame 320 is configured to be pivotable with respect to the seat tube 310, which will be described in detail later. The vehicle frame 300 can be folded by operating the handle frame 320, and its operation mode will be described later. Further, in the present embodiment, by pivoting the handle frame 320 from the first position to the second position with respect to the seat tube 310, the forward direction of the child carrier 1 can be changed.

[0091] As shown in FIGS. 1 and 2, the armrest frame 370 includes an armrest body 372 and two armrest connectors 371 provided on the left and right of the seat body 660. The armrest body 372 is fixedly attached to the front end portions of the two armrest connectors 371 in a detachable or non-detachable manner. The two armrest connectors 371 on the left and right of the seat body 660 are pivotably connected to both the front leg support frame 340 and the rear leg support frame 350.

[0092] In this embodiment, the vehicle frame 300 includes two auxiliary frames 330 and two link frames 380. The two auxiliary frames 330 are respectively disposed on the left and right sides of the child carrier 1. Referring to FIGS. 1 and 2, the two auxiliary frames 330 are respectively pivotally connected to the opposing rear ends of the two armrest connectors 371. Further, the two link frames 380 are also respectively disposed on both sides of the child carrier 1. The auxiliary frame 330 and the link frame 380 on the same side of the child carrier 1 are pivotally connected to each other. The detailed structures of the auxiliary frame 330 and the link frame 380 and the connection relationship between the two will be specifically described later.

[0093] Note that, as used in this specification, "front" refers to the same direction as the front direction of the child carrier in the deployed state, and "rear" as used in this specification refers to the direction opposite to the front direction of the child carrier 1 in the deployed state.

[0094] As shown in FIGS. 1 to 3, the back frame 400 is connected to the seat frame 200 via the limiting device 100, extends upward from the seat frame 200, and is configured to dispose the backrest plate 610 of the child carrier 1 (see, for example, FIGS. 40 and 41). The back frame 400 can pivot between a first position (for example, a reclined position, that is, a position where the angle between the back frame 400 and the seat frame 200 ranges from 90 degrees to 180 degrees, see FIG. 1) and a second position (for example, a substantially upright position, that is, a position where the angle between the back frame 400 and the seat frame 200 is approximately 90 degrees, see FIG. 2) with respect to the seat frame 200. Further, when the child carrier 1 is in a laid-down state or a folded state, the back frame 400 can pivot beyond the forward tilt position (that is, a position where the angle between the back frame 400 and the seat frame 200 is less than 90 degrees) and approach the seat frame 200. The limiting device 100 is configured to prevent the back frame 400 from pivoting beyond the forward tilt position during use of the child carrier 1, which will be described in detail later. It should be understood that the limiting device 100 of the present disclosure is also applicable to other devices and is configured to operably control the relative rotation between two objects. Therefore, the back frame 400 may be referred to as the first object, and the seat frame 200 may be referred to as the second object.

[0095] As shown in FIGS. 1 to 3, the limiting device 100 is connected between the back frame 400 and the seat frame 200, more specifically, between the lower end of the back frame 400 and the rear end of the seat frame 200. Via the limiting device 100, the back frame 400 can rotate about the transverse rotation axis 101 with respect to the seat frame 200 so as to adjust the pitch angle of the back frame 400. For the sake of simplicity of description, the forward tilt rotation direction of the back frame 400 is referred to as the first rotation direction 102, and the rear tilt rotation direction of the back frame 400 is referred to as the second rotation direction 103.

[0096] The limiting device 100 may have various structures. Referring to FIGS. 3 to 7, in one embodiment, the limiting device 100 may specifically include a housing 110, a limiting member 120, an engaging pin 130, and a first traction member 191.

[0097] The housing 110 is attached to the seat frame 200 and pivotally connected to the back frame 400. In this embodiment, since the seat frame 200 can slide longitudinally along the seat tube 310, the limiting device 100 and the back frame 400 can slide longitudinally with respect to the seat tube 310 (i.e., slide back and forth). In other embodiments, the housing 110 can be directly fixed to the seat tube 310 so that the limiting device 100 and the back frame 400 do not slide together with the seat frame 200. Alternatively, both the limiting device 100 and the seat bracket 200 can be fixed to the seat tube 310 without sliding.

[0098] The housing 110 is in the shape of a flat box and has two opposing side faces that are substantially perpendicular to the lateral direction. The back frame 400 abuts against one side face of the housing 110 and is connected to the housing 110 via a horizontal axis (not shown) inserted into the housing 110. In this embodiment, the back frame 400 is in contact with the inner side face of the housing 110. In other embodiments, the back frame 400 may alternatively abut against the outer side face of the housing 110.

[0099] As shown in FIGS. 7 and 8, at least one limiting groove 111 is arranged on the side surface of the housing 110 adjacent to the back frame 400. Specifically, only one limiting groove 111 may be provided in the housing 110, or a plurality of limiting grooves 111 may be continuously provided around the back frame pivot axis 401 (see FIG. 6) along the pivoting direction of the back frame 400. In the present embodiment, the limiting groove 111 has an arc-shaped wall extending along the direction of the pivot axis 401 of the back frame. The arc-shaped walls are substantially connected to each other in a wave-like manner and open radially outward (i.e., substantially upward) toward the engaging pin 130. When only one limiting groove 111 is provided, in the use state, there is a non-adjustable pitch angle between the back frame 400 and the seat frame 200. When a plurality of limiting grooves 111 are provided, in the use state, there is an adjustable pitch angle between the back frame 400 and the seat frame 200. Hereinafter, the case where a plurality of limiting grooves 111 are provided will be mainly described.

[0100] More specifically, as shown in FIGS. 9B and 10B, each limiting groove 111 has a front surface 111a facing the forward tilt direction (the direction close to the limiting member 120) and a rear surface 111b facing the rearward tilt direction (the direction away from the limiting member 120). The front surface 111a is an inclined surface or a convex arc surface, and the rear surface 111b is a concave arc surface. By doing so, when the back frame 400 moves in the forward tilt direction, the engaging pin 130 can automatically move over the limiting groove 111, but when the back frame 400 moves in the rearward tilt direction, the engaging pin 130 cannot automatically move over the limiting groove 111.

[0101] In other embodiments, the limiting groove 111 may be of another shape such as a square, a triangle, or a trapezoid. The limiting grooves 111 do not necessarily need to be connected to each other, but may be arranged so as to have a certain distance from each other.

[0102] As shown in FIGS. 9B and 10B, the engagement pin 130 has an end inserted into a plurality of limiting grooves 111 from the side surface of the housing 110 and another end inserted into the back frame 200. The engagement pin 130 is movable between a low position where the engagement pin is locked in one of the plurality of limiting grooves 111 and a high position where the engagement pin is disposed beyond one of the plurality of limiting grooves 111 with respect to the housing 110.

[0103] Also, when the limiting groove 111 includes a front surface 111a having an inclined surface or a convex arc surface, the engagement pin 130 can move to the high position along the front surface 111a. Further, the engagement pin 130 can move between the high position and the low position by operating a slider 490 (shown in FIG. 11), which will be described in detail later.

[0104] As shown in FIGS. 9B and 10B, the limiting member 120 is disposed laterally of the plurality of limiting grooves 111 along the pivoting direction and is movable between a limiting position that restricts the engagement pin 130 from approaching laterally and a non-limiting position that avoids restricting the engagement pin 130 from approaching laterally. More specifically, the limiting member 120 is disposed on the front side of the limiting groove 111 and is adjacent to the limiting groove 111 closest to the front side. When the limiting member 120 is in the limiting position (FIGS. 9A and 9B), the engagement pin 130 in the low position or the high position cannot move beyond the limiting member 120. When the limiting member 120 is in the non-limiting position (FIGS. 10A and 10B), the engagement pin 130 in the low position or the high position can move beyond the limiting member 120.

[0105] In this embodiment, the engagement pin 130 extends parallel to the pivot axis (i.e., extends in the lateral direction).

[0106] The arrangement and operation of the limiting member 120 will be described with reference to FIGS. 7 to 10B.

[0107] The limiting member 120 is disposed in the receiving groove 112 within the housing 110 so as to slide between a limiting position (see FIGS. 7, 9A, and 9B) and a non-limiting position (see FIGS. 8, 10A, and 10B) along the receiving groove 112. The receiving groove 112 is formed between two side walls of the housing 110. In this embodiment, the receiving groove 112 extends substantially vertically, although the receiving groove 112 may alternatively extend along another direction, for example, may extend substantially in the longitudinal direction.

[0108] As shown in FIGS. 9B and 10B, the first traction member 191 has an end connected to the limiting member 120 and another end connected to an operating device (the auxiliary frame 330 in the first embodiment) outside the limiting device 100. The operating device is configured to be able to pull the limiting member 120 to the non-limiting position via the first traction member 191. The operating device will be described in detail later.

[0109] The first reset member 194 is disposed between the bottom of the limiting member 120 and the bottom wall of the receiving groove 112, and presses the limiting member 120 to the limit position.

[0110] In this way, when the child carrier 1 is in use, since the limiting member 120 is in the limiting position, the engaging pin 130 cannot move beyond the limiting member 120, and excessive forward tilting of the back frame 400 is prevented. When it is necessary to lay down or fold the child carrier 1, the limiting member 120 is pulled to the non-limiting position via the operating device, so that the engaging pin 130 can move beyond the limiting member 120, thereby enabling the back frame 400 to approach or fit into the seat frame 200.

[0111] Regarding the specific structure of the back frame 400 according to the present disclosure, reference is made to FIGS. 12 to 17 for description. The back frame 400 includes a back frame vertical portion 410, a back frame horizontal portion 420, a back frame operating member 430, a link member 440, a second traction member 465, a second reset member 495, and an end member 470.

[0112] As shown in FIGS. 12 to 14, the back frame 400 is a substantially U-shaped member formed by two back frame vertical portions 410 and a back frame horizontal portion 420 connected between the upper end portions of the two back frame vertical portions 410. The lower ends of the two back frame vertical portions 410 are respectively connected to the seat frame 200 via one limiting device 100 (or connected to the seat tube 310). The end member 470 is configured to close the lower end of the back frame vertical portion 410.

[0113] The back frame operation member 430 is disposed at the central portion of the back frame horizontal portion 420, and in other embodiments, it may be alternatively disposed at other positions of the back frame 400, such as on the back frame vertical portion 410.

[0114] As shown in FIGS. 14 and 15, the slider 490 is located at the lower end of the back frame vertical portion 410 and is slidably disposed in the hollow back frame vertical portion 410. One end of the engagement pin 130 is fixed to the slider 490, and the other end passes through a long groove 411 provided at the lower end of the back frame vertical portion 410 and reaches the outside of the back frame 400 and is inserted into the limiting device 100. The long groove 411 extends longitudinally for a certain distance, so that the engagement pin 130 can move together with the slider 490. The second reset member 495 is disposed on the back frame vertical portion 410 and biases the slider 490 to drive the engagement pin 130 to a low position (lock position).

[0115] As shown in FIGS. 14 and 15, one end of the second traction member 465 is connected to the slider 490, and the other end is connected to a link member 440 (see FIGS. 16 and 17) disposed on the back frame 400. The link member 440 is connected to the back frame operating member 430. The back frame operating member 430 is operable to drive the engagement pin 130 to a high position (i.e., the unlocking position) via the second traction member 465 and the slider 490. More specifically, the back frame operating member 430 is connected to the back frame horizontal portion 420 via the operating member housing portion 480. The operating member housing portion 480 is fixed to the back frame horizontal portion 420 and extends along the back frame horizontal portion 420. The back frame operating member 430 rotates around the operating member housing portion 480 via the operating member shaft 450. The link member 440 is disposed within the operating member housing portion 480 and is slidable along the operating member housing portion 480. The other end of the second traction member 465 is fixed to the link member 440. The back frame operating member 430 abuts against the link member 440 and includes a lug 431 that extends obliquely and faces the link member 440. The lug 431 is inserted into an obliquely extending recess 442 provided at a corresponding position of the link member 440. In this way, when the back frame operating member 430 is operated to rotate around the operating member housing portion 480, the link member 440 slides relatively along the back frame horizontal portion 420 via the biasing relationship between the lug 431 and the recess 442, thereby pulling the second traction member 465. A third reset member 460 that biases the back frame operating member 430 to a position where the second traction member 465 is not pulled may be disposed between the back frame operating member 430 and the operating member housing portion 480.

[0116] In another embodiment, the back frame operating member 430 can have different forms such as a pulling handle, provided that it can pull the slider 490 in response to a user's operation. Alternatively, the slider 490 may be configured to be operable from the outside, such as having a portion that is exposed outside the back frame 400 for pulling. In this way, the back frame operating member 430 can be omitted.

[0117] The actuating device can be in various forms. As shown in FIGS. 18 to 21, in the first embodiment, the actuating device may be the auxiliary frame 330, and the specific structure is as follows. In this embodiment, the auxiliary frame 330 is pivotally attached to the outside of the seat frame 200, and the handle frame 320 is pivotally attached to the outside of the auxiliary frame 330. In other embodiments, the order of the seat frame 200, the auxiliary frame 330, and the handle frame 320 from the inside to the outside may be interchanged. In this embodiment, the auxiliary frame 330 and the handle frame 320 rotate about the same handle pivot axis 325 with respect to the seat frame 200. However, this is not essential. In other embodiments, the auxiliary frame 330 and the handle frame 320 may have different pivot axes.

[0118] The restricting device 100 is attached above the inside of the seat frame 200. As described above, the restricting device 100 may be connected to the seat frame 200 so as to be slidable relative to the seat tube 310 via the seat frame 200 (i.e., slidable in the front-rear direction), or may be directly fixed to the seat tube 310. To clearly show the arrangement of the first towing member 191, the back frame 400 is not shown in FIGS. 18 to 21. However, it should be understood that since the back frame 400 is pivotally connected to the restricting device 100, the pivot axis of the back frame 400 does not need to overlap with the handle pivot axis 325.

[0119] When the child carrier 1 is in a lying-down state or a folded state, as indicated by the arrow 335 in FIGS. 18 and 19, the auxiliary frame 330 rotates forward with respect to the seat frame 200. Therefore, the auxiliary frame 330 can pivot between the deployed position and the folded position with respect to the seat frame 200. Only the deployed position of the auxiliary frame 330 is shown in the figures. It should be understood that the auxiliary frame 330 approaches the seat frame 200 in the lying-down position.

[0120] As shown in FIGS. 20A to 20C, both ends of the first traction member 191 are connected to the limiting member 120 and the auxiliary frame 330, respectively. More specifically, the first traction member 191 extends from the limiting member 120 through the housing 110 to the outside of the limiting device 100, passes through the gap of the seat frame 200 or bypasses the seat frame 200, passes through the connecting seat 140 attached to the rear of the seat frame 200, and finally enters the inside of the auxiliary frame 330 through the cable fixing portion 334.

[0121] The connecting seat 140 is fixed to the rear end portion of the seat tube 310 (i.e., the end portion close to the back frame 400). As shown in FIG. 21, the connecting seat 140 includes a connecting seat body 141, a traction member groove 142, and a traction member sleeve accommodating portion 143. The side of the connecting seat body 141 facing the seat tube 310 is planar, and the side facing away from the seat tube 310 has an arc-shaped finished surface. The connecting seat body 141 may alternatively have other shapes without affecting its function. The traction member groove 142 is disposed on the side surface of the connecting seat body 141, for example, the side close to the auxiliary frame 330 (i.e., the side facing away from the seat tube 310). The traction member sleeve accommodating portion 143 is disposed at the end of the traction member groove 142. The first traction member 191 passes through the traction member groove 142 and is connected to the auxiliary frame 330.

[0122] Specifically, the first traction member 191 includes a cable sleeve 191a and a cable 191b slidably passed through the cable sleeve 191a. Both ends of the cable 191b are connected to the limiting member 120 and the auxiliary frame 330 via the connecting sheet 140 respectively, and both ends of the cable sleeve 191a are connected to the housing 110 and the connecting sheet 140 respectively. When the auxiliary frame 330 pivots from the deployed position to the collapsed position, it drives the limiting member 120 to the unrestricted position via the first traction member 191.

[0123] More specifically, the first traction member 191 includes a cable sleeve 191a, a cable 191b, and a fixed head 191c. The cable 191b is slidably disposed within the cable sleeve 191a, and the fixed head 191c is disposed at the end of the cable 191b. The width of the traction member groove 142 is arranged to allow the insertion of the cable 191b but not the insertion of the cable sleeve 191a. The width of the traction member sleeve receiving portion 143 is larger than the width of the traction member groove 142, such that the end of the cable sleeve 191a engages with the traction member sleeve receiving portion 143 of the connecting sheet 140. The cable 191b is connected to the cable fixing portion 334 of the auxiliary frame 330 via the fixed head 191c.

[0124] In this way, when the child carrier 1 is collapsed or folded, the auxiliary frame 330 pivots forward relative to the seat frame 200, the cable fixing portion 334 of the auxiliary frame 330 pulls the cable 191b, and as the cable 191b slides within the cable sleeve 191a, the limiting member 120 is driven to move to the unrestricted position, enabling the back frame 400 to pivot beyond the limiting member 120.

[0125] When the child carrier 1 is laid down or folded, the seat tube 310 can also pivot upward relative to the auxiliary frame 330 (or relative to the entire child carrier 1). Similarly, when the cable fixing portion 334 of the auxiliary frame 330 pulls the cable 191b and the cable 191b slides within the cable sleeve 191a, the restricting member 120 is driven to move to the unrestricted position, and the back frame 400 can pivot beyond the restricting member 120. Therefore, when the child carrier 1 is laid down or folded, the engaging pin 130 can move beyond the restricting member 120, enabling the forward tilt folding of the back frame 400.

[0126] Furthermore, the cable cover 191a is neither pulled along with the pivoting of the auxiliary frame 330 nor configured to pull the restricting member 120. In other words, the cable cover 191a remains substantially stationary even when the auxiliary frame 330 pivots. Further, when the restricting device 100 moves longitudinally relative to the seat frame 200, the end of the cable sleeve 191a fixed to the housing 110 of the restricting device 100 moves longitudinally together with the restricting device 100. In this way, the cable cover 191a can automatically adjust the extension path of the cable 191b so that both ends of the cable 191b maintain a substantially constant traction force.

[0127] In the second embodiment, as shown in FIGS. 22 and 25, the operating device may alternatively be the link member 331. The link member 331 is disposed on the side surface of the auxiliary frame 330 and is slidable relative to the auxiliary frame 330.

[0128] A first slide sleeve 323 is provided in a sleeve shape at the lower end of the handle frame 320, and the position of the first slide sleeve 323 is close to the handle pivot shaft 325 (see FIG. 25). The handle frame 320 further includes a handle operation member 324 (see FIG. 22). The handle operation member 324 is operably connected to the first slide sleeve 323 and can slide the first slide sleeve 323 in a direction away from the handle pivot shaft 325 (i.e., slide upward) via a third traction member 326. The specific structure of the handle operation member 324 may be the same as that of the back frame operation member 430 of the back frame 400, or alternatively, it may have a different form.

[0129] The first slide sleeve 323 of the handle frame 320 drives the limiting member 120 to move to the unrestricted position via a first traction member 191. More specifically, as shown in FIG. 25, the first slide sleeve 323 is connected to a connecting member 331, and the slide of the first slide sleeve 323 away from the handle pivot shaft 325 can drive the connecting member 331 to slide, thereby pulling the first traction member 191 and bringing the limiting member 120 to the unrestricted position. In the present embodiment, the first slide sleeve 323 includes a first slide sleeve protrusion 3231 extending toward the auxiliary frame 330, the link member 331 includes a link member protrusion 3311 extending toward the handle frame 320, the link member protrusion 3311 at least partially protrudes from the auxiliary frame 330, and the first slide sleeve protrusion 3231 abuts against the lower part of the link member protrusion 3311. In this way, when the handle frame 320 moves around the handle pivot shaft 325 to the rear position shown in FIGS. 22 to 25, the first slide sleeve 323 abuts against the link member 331, and when the handle frame 320 moves away from the rear position, the first slide sleeve 323 can be separated from the link member 331 without interfering with the movement of the handle frame 320.

[0130] In other embodiments, the first slide sleeve 323 and the link member 331 may be connected in different forms. For example, the first slide sleeve 323 may be inserted into the link member 331.

[0131] In this embodiment, the connecting member 331 is connected to the first traction member 191 via the connector 332. The connector 332 is fixed to the link member 331, inserted into the auxiliary frame 330, and slidable relative to the auxiliary frame 330. The link member 331 is disposed on the side of the handle frame 320 of the auxiliary frame 330 facing the handle frame 320, and the connector 332 is disposed on the side of the auxiliary frame 330 facing the seat tube 310. In other words, the link member 331 and the connector 332 are respectively disposed on two sides of the auxiliary frame 330 so as to be connected to the first slide sleeve 323 and the first traction member 191 of the handle frame 320 respectively. The link member protrusion 3311 extends from the connector 332 toward the handle frame 320, and the fourth reset member 333 is disposed between the connector 332 and the auxiliary frame 330 so that the link member protrusion 3311 always presses against the first slide sleeve protrusion 3231.

[0132] The first slide sleeve 323 is connected to the link member 331, and the first slide sleeve 323 can slide the link member 331 by sliding in a direction away from the handle pivot axis 325, thereby pulling the first traction member 191 and bringing the limiting member 120 to the unrestricted position. More specifically, when the user needs to pivot the back frame 400 forward for lodging, the first slide sleeve 323 is pulled by the handle operating member 324 via the third traction member 326, whereby the first slide sleeve 323 drives the connecting member 331 and the connecting member 332 to move upward, thereby pulling the first traction member 191 and allowing the limiting member 120 to move to the unrestricted position and the engaging pin 130 to move beyond the limiting member 120.

[0133] Referring to FIGS. 26 to 27, in the third embodiment, the operating device is the same as the operating device in the second embodiment. The difference between the two is that in the third embodiment, the connector 332 is omitted (see FIG. 25), and the first traction member 191 is directly connected to the link member 331. In this way, the structure of the operating device can be simplified.

[0134] In another embodiment, as shown in FIGS. 28 to 30, the limiting device 100 includes a housing 110 and a limiting member 120 (see FIG. 32). The housing 110 includes a first housing 114 and a second housing 115. The first housing 114 is fixed to the back frame 400, the second housing 115 is fixed to the seat frame 200, and is disposed opposite to the first housing 114 along the rotation axis 101. The first housing 114 can rotate about the rotation axis 101 with respect to the second housing 115. In this way, the limiting device 100 realizes the relative rotation between the seat frame 200 and the back frame 400.

[0135] FIGS. 30 and 31 further illustrate two back frame vertical portions 410 forming the back frame 400, a back frame horizontal portion 420 connected between the upper ends of the two back frame vertical portions 410, and a back frame operating member 430 disposed at the center of the back frame horizontal portion 420. FIG. 31 further shows a locking member 150 disposed between the first housing 114 and the second housing 115. The back frame operating member 430 pulls the locking member 150 via the second traction member 465. The structures and operations of the back frame operating member 430 and the locking member 150 will be described in detail later.

[0136] The specific structure of the limiting member 120 in this embodiment will be described with reference to FIGS. 32 to 34.

[0137] The restricting member 120 is disposed within the second housing 115 and is movable relative to the second housing 115 between a restricting position shown in FIG. 33 and a non-restricting position shown in FIG. 34.

[0138] Referring to FIGS. 28 and 29 together, the first housing 114 is provided with a restricting groove 111. When the back frame 400 is in the first rotational position 106 shown in FIG. 29 with respect to the seat frame 200, the restricting groove 111 is aligned with the restricting member 120 (as shown in FIG. 33). The restricting member 120 extends into the restricting groove 111 and enters the restricting position, and then engages with the first housing 114. When the back frame 400 is not in the first rotational position 106 with respect to the seat frame 200, for example, when it is in the second rotational position 107, or when it is in any reclined position rotated rearward beyond the first rotational position 106, the restricting groove 111 is not aligned with the restricting member 120. Accordingly, the restricting member 120 abuts against the peripheral edge of the first housing 114, preventing the restricting member 120 from extending into the restricting groove 111 and entering the restricting position.

[0139] In one embodiment, the restricting groove 111 is formed radially inward from the peripheral side wall of the first housing 114 and has a radially outward opening.

[0140] When in the restricting position, the restricting member 120 blocks rotation of the back frame 400 in the first rotational direction 102 (i.e., the forward recline rotational direction), but is arranged to allow rotation of the back frame 400 in a second rotational direction 103 (i.e., the rearward recline rotational direction) opposite to the first rotational direction 102.

[0141] More specifically, as shown in FIGS. 33 and 34, the restricting member 120 includes a first restricting member end 121 and a second restricting member end 122. The first restricting member end 121 faces the first housing 114 and has a restricting head front surface 121a inclined rearward with respect to the first rotational direction 102. The second restricting member end 122 is on the side opposite to the first restricting member end 121 and is away from the first housing 114.

[0142] As shown in FIG. 33, when the back frame 400 rotates in the second rotation direction 103 (rearward tilting rotation direction) with the limiting member 120 extending to the limiting groove 111, the first housing 114 abuts against the front surface 121a of the limiting head, and thereby the limiting member 120 is pressed against the unrestricted position. That is, when the user rotates the back frame 400 in the second rotation direction 103, the limiting member 120 disengages from the limiting groove 111, and the rotation of the back frame 400 is unlocked (of course, in order for the user to rotate the back frame 400, it is necessary to further unlock the locking member 150, which will be described in detail later). Conversely, when the limiting member 120 extends to the limiting groove 111, if the user attempts to rotate the back frame 400 in the first rotation direction 102 (forward tilting rotation direction), it is impossible to achieve. The reason is that since the first housing 114 cannot push the limiting member 120 to the unrestricted position, there is a possibility that the limiting member 120 cannot unlock the rotation of the back frame 400. More specifically, as shown in FIG. 33, the front surface 121a of the limiting head of the limiting member 120 is an inclined surface, and the limiting groove 111 has a corresponding limiting groove inclined surface 111c. The limiting groove inclined surface 111c and the front surface 121a of the limiting head have substantially the same inclination angle. When the back frame 400 rotates in the second rotation direction 103, the limiting groove inclined surface 111c and the front surface 121a of the limiting head abut against each other, and the limiting member 120 is automatically pulled out from the limiting groove 111.

[0143] To unlock the rotation of the back frame 400, the limiting device 100 further includes a driving member 162, a first reset member 194, and an operating device (not shown).

[0144] As shown in FIGS. 33 and 34, the driving member 162 is connected to the second end 122 of the limiting member 120 away from the first housing 114, and can move along the second sliding direction 109 within the seat frame 200 or the second housing 115 so as to drive the limiting member 120 to the limiting position or the unrestricted position.

[0145] More specifically, the limiting member 120 moves linearly along a first sliding direction 108 perpendicular to the rotation axis 101 (see FIG. 31), and the second sliding direction 109 is perpendicular to the rotation axis 101 and forms an angle with the first sliding direction 108. The driving member 162 includes a driving groove 1621, and the driving groove 1621 is disposed at an end of the driving member 162 close to the limiting member 120 and extends perpendicular to the second sliding direction 109. The limiting device 100 further includes a driving pin 164, and the driving pin 164 is fixed to the second limiting member end 122, extends parallel to the rotation axis 101, and is slidably inserted into the driving groove 1621. In this way, when the driving member 162 moves linearly along the second sliding direction 109, it drives the limiting member 120 to move linearly along the first sliding direction 108 via the driving pin 164.

[0146] To move the driving member 162, a first reset member 194 is further disposed between the driving member 162 and the second housing 115 to bias the driving member 162 and urge the limiting member 120 to the limiting position.

[0147] The actuating device can be disposed on the vehicle frame 300, and this vehicle frame 300 is connected to the driving member 162 via a first towing member 191. The actuating device can be configured to actuate the limiting member 120 to the non-limiting position via the first towing member 191 and the driving member 162. The actuating device can adopt existing forms in the art. For example, it can actuate the driving member 162 according to the operation of the user (such as the operation of tipping the vehicle frame 300). The embodiments of the actuating device can be obtained by referring to the actuating device in the previous embodiments. Details will not be described again in this specification.

[0148] Further, in other embodiments, the drive member 162 may alternatively be omitted, and the restricting member 120 is directly biased via the first traction member 191. In such embodiments, the restricting device 100 further includes a restricting elastic member, the restricting elastic member is disposed between the restricting member 120 and the second housing 115, and biases the restricting member 120 to the restricting position. The actuating device is connected to the restricting member 120 via the first traction member 191. The actuating device can be operated by a user (e.g., an operation of folding the vehicle frame 300) to bias the restricting member 120 to the unrestricted position via the first traction member 191.

[0149] The specific structures of the locking member 150, the first housing 114, and the second housing 115 according to the present disclosure will be described with reference to FIGS. 33 to 37.

[0150] As shown in FIGS. 33 and 34, the locking member 150 is disposed between the first housing 114 and the second housing 115 and is radially movable between a locked position and an unlocked position. FIG. 37 schematically shows a locking direction 104 of the locking member 150 moving toward the locked position and an unlocking direction 105 of the locking member 150 moving toward the unlocked position. When the locking member 150 is in the locked position, the locking member 150 prevents relative rotation between the first housing 114 and the second housing 115. When the locking member 150 is in the unlocked position, the locking member 150 allows relative rotation between the first housing 114 and the second housing 115.

[0151] As shown in FIGS. 33 and 34, the unlocking member 161 is disposed between the first housing 114 and the locking member 150, and the unlocking member 161 biases the locking member 150 to the locked position.

[0152] Referring to FIG. 35, the first housing 114 includes a first disk portion 1143, a first rod portion 1144, a limiting groove 111, a first shaft hole 1141, and a slide groove 1142. The first disk portion 1143 is formed in a disk shape with its axial ends closed. The first rod portion 1144 extends from the outer periphery of the first disk portion 1143 and is fixed to the first object.

[0153] The slide groove 1142 is formed on the inner side in the axial direction of the first housing 114 and extends in the radial direction. The locking member 150 is disposed in the slide groove 1142 and rotates about the rotation axis 101 together with the first housing 114. In the present embodiment, the slide groove 1142 is, for example, a key groove. In other embodiments, the slide groove 1142 may alternatively be formed in other suitable shapes according to the shape of the locking member 150, for example, formed as one or more linear tracks.

[0154] More specifically, the first shaft hole 1141 is disposed in the slide groove 1142, and the first shaft hole 1141 penetrates the first housing 114 along the rotation axis 101. The first shaft hole wall 1141a rises inward from the inner side in the axial direction of the first housing 114 and forms a columnar wall.

[0155] The locking member 150 includes an elongated hole 153. The elongated hole 153 is disposed at the center in the radial direction of the locking member 150, extends in the radial direction, and the elongated hole 153 is disposed around the first shaft hole wall 1141a.

[0156] As shown in FIGS. 33 and 34, the limiting device 100 further includes a unlocking member 161. The unlocking member 161 is disposed in the elongated hole 153, and both ends thereof abut against the first shaft hole wall 1141a and the end of the elongated hole 153 respectively, biasing the locking member 150 to the locking position. Since the unlocking member 161 is disposed within the locking member 150, the limiting device 100 is allowed to have a compact structure.

[0157] The specific structure of the second housing 115 will be described with reference to FIG. 36. The second housing 115 includes a second disk portion 1154, a second rod portion 1155, a second shaft hole 1151, at least one first lock groove 1152, and at least one second lock groove 1153.

[0158] The second disk portion 1154 is formed in a disk shape with axially closed ends. The second rod portion 1155 extends from the outer periphery of the second disk portion 1154 and is fastened to the second object. The first disk portion 1143 and the second disk portion 1154 are rotatably fixed to each other about the rotation axis 101 and form a cylindrical box-shaped structure with two axially closed ends. The cylindrical box-shaped structure with both ends closed contributes to the neat appearance of the limiting device 100. However, this is not essential, and the limiting device 100 may alternatively include a closed structure or an open structure of another shape.

[0159] The second shaft hole 1151 is provided at the center of the second disk portion 1154. The first lock groove 1152 is close to the inner peripheral side of the peripheral edge of the second disk portion 1154. The second lock groove 1153 is located between the peripheral edge of the second disk portion 1154 and the second shaft hole 1151 and is substantially diametrically opposed to the first lock groove 1152.

[0160] In order to lock a plurality of rotational positions (including the first rotational position 106 and the second rotational position 107) between the first housing 114 and the second housing 115, the second housing 115 is provided with a plurality of first lock grooves 1152 arranged in the circumferential direction and a plurality of second lock grooves 1153 arranged in the circumferential direction.

[0161] The positions of the first locking groove 1152 and the second locking groove 1153 are arranged such that when the back frame 400 is in the first rotational position 106 and when the back frame 400 is in at least one second rotational position 107 in the second rotational direction 103, the first locking portion 151 and the second locking portion 152 of the locking member 150 can engage with different first locking grooves 1152 and second locking grooves 1153 (as shown in FIG. 37), respectively.

[0162] Referring to FIG. 35, the locking member 150 includes a first locking portion 151, a second locking portion 152, a long hole 153, and a fixing portion 154 at the first end of the second traction member.

[0163] The first locking portion 151 is located at the first end of the locking member 150. The second locking portion 152 is located at the second end of the locking member 150 opposite to the first end. When the locking member 150 is in the locked position, the first locking portion 151 and the second locking portion 152 engage with the first locking groove 1152 and the second locking groove 1153 of the second housing 115, respectively, so as to lock the relative rotation between the first housing 114 and the second housing 115.

[0164] More specifically, the first locking portion 151 includes at least one first locking tooth 151a that rises axially inward from the first end and extends in the locking direction 104. The second locking portion 152 includes at least one second locking tooth 152a that rises axially inward from the second end and extends in the locking direction 104. When the locking member 150 is in the locked position, the first locking tooth 151a is inserted into at least one first locking groove 1152, and the second locking tooth 152a is inserted into at least one second locking groove 1153.

[0165] In this embodiment, the locking member 150 has two first locking teeth 151a and two second locking teeth 152a so that the locking member 150 can stably engage with the second housing 115. However, this is not essential, and the locking member 150 may have only one first locking tooth 151a and one second locking tooth 152a.

[0166] The first locking tooth 151a and the second locking tooth 152a are each formed as a ratchet tooth. More specifically, each first locking tooth 151a includes a first front surface 151b and a first rear surface 151c, and each second locking tooth 152a includes a second front surface 152b and a second rear surface 152c. Both the first front surface 151b and the first rear surface 151c are inclined rearward along the first rotation direction 102. When the locking member 150 rotates together with the first housing 114 in the first rotation direction 102 (i.e., the forward tilting rotation direction), the inclined first front surface 151b and the second front surface 152b abut against the first locking groove 1152 and the second locking groove 1153, so that the locking member 150 automatically slides in the unlocking direction 105 to reach the unlocking position. When the locking member 150 attempts to rotate in the second rotation direction 103 (i.e., the rearward tilting rotation direction), since the first rear surface 151c and the second rear surface 152c are not inclined, the locking member 150 may not automatically slide to the unlocking position.

[0167] The lock member 150 can move to the unlocked position in response to a user operation. Specifically, the back frame 400 is provided with a second pulling member 465, which is, for example, a cable, and the second pulling member 465 is fixedly connected to the lock member 150. The second pulling member 465 includes a first end 4651 of the second pulling member and a second end 4652 of the second pulling member (shown in FIG. 38), which are respectively connected to the fixed portion 154 of the lock member 150, and a fixing portion 441 (see FIG. 38) of the second end of the second pulling member disposed on the back frame horizontal portion 420 of the back frame 400. The user can control the movement of the lock member 150 via the second pulling member 465 and via the back frame operating member 430.

[0168] Referring to FIGS. 38 and 39, the specific structure of the back frame operating member 430 and its related members is substantially the same as that of the back frame operating member 430 in the previous embodiment. Details will not be described again here.

[0169] The above-mentioned limiting device 100 has at least the following technical effects.

[0170] In the above-mentioned limiting device 100, the limiting device 100 includes a housing 110 and a limiting member 120 disposed between the first object and the second object. The limiting member 120 can move between a limiting position and a non-limiting position via at least one limiting groove 111 disposed on the housing 110. When the limiting member 120 is in the limiting position, the rotation of the first object in one direction with respect to the second object can be limited, and thereby, the rotation angle of the first object with respect to the second object can be limited so as to prevent the excessive forward tilt of the back frame 400.

[0171] As shown in FIGS. 40 to 42, in yet another embodiment, the child carrier 1 further includes a limiting block 500.

[0172] Hereinafter, taking the side of the child carrier 1 as an example, the structure and operating principle of the limiting block 500 and related components will be specifically described.

[0173] As shown in FIGS. 42 to 44, the limiting block 500 is fixed to the vehicle frame 300. In this embodiment, the limiting block 500 is fixed to the rear end portion on the opposite side of the seat tube 310. As shown in FIG. 44, the limiting block 500 has a first end face 510 and a second end face 520 facing the front end of the vehicle frame 300. In this embodiment, the first end face 510 and the second end face 520 are two inclined planes with different extending directions respectively, and the side surfaces of the first end face 510 and the second end face 520 meet to form a bulging portion 530. In other words, the bulging portion 530 of the limiting block 500 extends toward the movable end 413 (details will be described later) of the back frame 400, and the bulging portion 530 can have an acute angle, an obtuse angle, or a rounded chamfer. The shape of the bulging portion 530 is not limited in the present disclosure.

[0174] Of course, in other embodiments, only one of the first end face 510 and the second end face 520 of the limiting block 500 may be an inclined plane. Specifically, in the embodiment, the first end face 510 may be a vertical plane substantially perpendicular to the seat tube 310. That is, the extending direction of the first end face 510 is substantially perpendicular to the extending direction of the seat tube 310. The second end face 520 is an inclined plane and is inclined at a specific angle with respect to the first end face 510 (vertical plane). In another embodiment, at least one of the first end face 510 and the second end face 520 may alternatively be an arc-shaped surface. In another embodiment, the side surface of the limiting block 500 facing the seat frame 200 may alternatively directly form an entire arc-shaped surface without having the first end face 510 and the second end face 520. Therefore, in the present disclosure, as long as the movable end 413 can be pushed, the shape of the limiting block 500 is not limited.

[0175] Specifically, as shown in FIGS. 43 and 44, the seat frame 200 is sleeved movably on the seat tube 310 and can move relative to the limiting block 500 along the seat tube 310. Specifically, when the handle frame 320 pivots relative to the seat tube 310, the seat frame 200 may be connected to move away from or closer to the limiting block 500. In this embodiment, the seat frame 200 has a clamp portion 230 disposed opposite to the limiting block 500.

[0176] Referring again to FIGS. 40 and 41, as described above, the back frame 400 includes two back frame vertical portions 410 and a back frame horizontal portion 420 connected between the upper ends of the two back frame vertical portions 410. The back frame 400 is pivotally attached to the vehicle frame 300 relative to the vehicle frame 300. Specifically, as shown in FIGS. 42 to 44, the back frame vertical portion 410 is rotatably connected to the corresponding side seat frame 200 via a first rotating shaft M. Therefore, the back frame vertical portion 410 may rotate in the direction F1 or in the reverse direction relative to the vehicle frame 300 (or relative to the seat body 660) about the first rotating shaft M.

[0177] Furthermore, as shown in FIGS. 43 and 44, the end of the back frame vertical portion 410 that is away from the back frame horizontal portion 420 is a movable end 413, and the movable end 413 is located between the limit block 500 of the seat frame 200 and the clamp portion 230. When the vehicle frame 300 is in the deployed state, the two side surfaces of the movable end 413 are respectively in contact with the limit block 500 (specifically, the first end surface 510) and the clamp portion 230. In this way, the back frame 400 can be inclined with respect to the vertical reference plane passing through the first rotating shaft M, and the inclination angle between the extending direction of the back frame 400 and the vertical reference plane can be fixed via the limit block 500 and the clamp portion 230, thereby preventing potential safety hazards caused by the forward tilt of the back frame 400 due to the failure of the fixed limit. Therefore, by the cooperation between the arrangement of the limit block 500 and the seat frame 200, when the vehicle frame 300 is in the deployed state, the back frame 400 of the child carrier 1 can be obliquely fixed and restricted.

[0178] Also, when the vehicle frame 300 is folded down, the back frame 400 may be interlocked with the rotation of the handle frame 320 of the vehicle frame 300 to approach the handle frame 320, so as to facilitate the folding of the vehicle frame 300. As shown in FIGS. 45 and 46, when switching from the deployed state to the folded state of the vehicle frame 300, the handle frame 320 pivots in the direction F1, and thereby, the seat frame 200 may move in the direction F2 away from the limit block 500 along the seat tube 310. Details of the structure and operation for connecting the handle frame 320 and the seat frame 300 will be described later.

[0179] As shown in FIGS. 45 and 46, when the vehicle frame 300 is folded, the seat frame 200 moves in the direction F2 along the seat tube 310, so the clamp portion 230 moves away from the movable end 413. In other words, the clamp portion 230 no longer abuts against the movable end 413, thereby no longer having a restricting effect on the movable end 413. On the other hand, the rotation of the handle frame 320 may pivot the seat tube 310 toward the handle frame 320 (toward the rear). The rotation of the seat tube 310 can be driven to rotate the limiting block 500. Since the limiting block 500 is disposed adjacent to the movable end 413, during the collapse of the vehicle frame 300, the bulging portion 530 of the limiting block 500 continuously presses the movable end 413 to rotate relative to the seat frame 200, and the back frame 400 rotates relative to the vehicle frame 300 and collapses, which can be assisted. Specifically, during the collapse of the vehicle frame 300, since the limiting block 500 can continuously press against the movable end 413, the back frame horizontal portion 420, together with the back frame vertical portion 410, rotates around the first rotating shaft M toward the handle frame 320 and moves closer to the handle frame 320, which is conducive to the collapse of the vehicle frame 300.

[0180] Referring to FIGS. 47 and 48, when the vehicle frame 300 is in the folded state, the second end face 520 of the limiting block 500 abuts against the movable end 413. When the vehicle frame 300 is in the folded state, it is worth mentioning that the limiting block 500 can also limit the pivoting of the movable end 413, thereby preventing the movement of the back frame 400 (or the back frame horizontal portion 420) away from the handle frame 320. Therefore, when the vehicle frame 300 is folded, the limiting block 500 can limit the rotation of the back frame 400 and prevent interference between the back frame 400 and the armrest frame 370 due to the rotation of the back frame 400 in the direction of the armrest frame 370 (i.e., the direction F1, see FIG. 45).

[0181] In other words, when the vehicle frame 300 is in the deployed state and when it is in the folded state, the movable end 413 abuts against different parts of the limiting block 500 respectively. When the vehicle frame 300 is in the deployed state, the movable end 413 abuts against the upper half part (the first end face 510) of the limiting block 500, and when the vehicle frame 300 is in the folded state, the movable end 413 abuts against the lower half part (the second end face 520) of the limiting block 500.

[0182] Also, as described above, after the handle frame 320 is unlocked, it rotates in the direction F1, drives the seat frame 200 to move in the direction F2 and separates it from the movable end 413, so that the vehicle frame 300 can be folded or the forward direction of the child carrier 1 can be changed. However, if the handle frame 320 is accidentally operated and unlocked, the movable end 413 of the back frame 400 cannot be clamped and fixed between the limiting block 500 and the seat frame 200.

[0183] Referring to FIGS. 49 and 50, the child carrier 1 further includes a backrest plate 610. The backrest plate 610 is arranged in a rotatable manner with respect to the back frame 400 so that the inclination angle of the backrest plate 610 can be appropriately adjusted. Specifically, the seat frame 200 may be covered with a layer of flexible seat cloth (not shown), and the backrest plate 610 and the seat cloth may be integrated with a sleeve. Since the backrest plate 610 is plate-shaped and has a certain thickness, the backrest plate 610 is relatively rotatable with respect to the back frame 400. Note that the backrest plate 610 in the present embodiment is not pivotally connected to the seat frame 200 or the seat tube 310 and is configured in another manner.

[0184] Referring to FIG. 49 together with FIG. 40, further, the child carrier 1 can also include an adjustment harness 620. One end of the adjustment harness 620 is fixed to one vertical portion 410 of the back frame, and the other end of the adjustment harness 620 bypasses the backrest portion 610 and is fixed to the other vertical portion 410 of the back frame. The length of the adjustment harness 620 is adjustable, and by adjusting the length of the adjustment harness 620, the tilt angle of the backrest plate 610 with respect to the back frame 400 can be adjusted.

[0185] Furthermore, in the present embodiment, the child carrier 1 can further include an adjustment buckle 630, and the adjustment buckle 630 has two buttonholes (not shown). The approximate center portion of the adjustment harness 620 is passed through the two buttonholes. By pulling out a part of the length of the adjustment harness 620 from the two buttonholes, the length from both ends of the adjustment harness 620 to the adjustment buckle 630 can be shortened, and the degree of inclination of the backrest plate 610 can be reduced. Conversely, by moving the adjustment buckle 630 away from the backrest plate 610, the length from both ends of the adjustment harness 620 to the adjustment buckle 630 can be lengthened, and the degree of inclination of the backrest plate 610 can be increased. Of course, in other embodiments, the length of the adjustment harness 620 may alternatively be adjusted in other ways. For example, a plurality of Velcro loops and Velcro hooks can be provided at the approximate center portion of the adjustment harness 620, and the length of the adjustment harness 620 can be adjusted by attaching different Velcro loops and Velcro hooks.

[0186] Also, as shown in FIGS. 49 and 50, the child carrier 1 of the present embodiment further includes a tie-down member 640. By connecting both ends of the tie-down member 640 to the armrest frame 370 and the back frame 400 respectively, it is possible to prevent the influence on the safety of the infant still riding on the child carrier 1 when the back frame 400 rotates in the vertical direction F1 or the forward-tilt state around the first rotation shaft M. Specifically, the tie-down member 640 of the present embodiment is connected to the armrest connector 371 and the vertical portion 410 of the back frame.

[0187] When the handle frame 320 is reversed or the handle frame 320 is accidentally unlocked and rotated, the seat frame 200 can move along the direction F2 and at the same time drive the movable end 413 to move forward. When the seat frame 200 moves forward and separates from the limit block 500, a space where the movable end 413 can pivot is formed, and since the limit block 500 may not contact the movable end 413, the movable end 413 may pivot. In this case, the tie-down member 640 connected between the armrest connector 371 and the vertical portion 410 of the back frame can bind and restrict the armrest connector 371 to prevent the pivoting of the movable end 413, thereby preventing potential safety hazards caused by the pivoting of the back frame 400 to the vertical state or the forward-tilt state. In the present embodiment, the tie-down member 640 is a webbing. The webbing is lightweight, inexpensive, and easily available. At the same time, since the webbing has a flexible structure, it is easy to bend or fold along with the folding of the entire vehicle frame 300. Of course, in other embodiments, the tie-down member 640 may alternatively be made of materials such as steel wires or belts.

[0188] Hereinafter, with reference to FIGS. 51 and 52, the link mechanism between the handle frame 320 and the seat frame 200 will be further described. Specifically, as shown in FIG. 52, the child carrier 1 of the present embodiment further includes a link assembly 650 connected to the handle frame 320 and the seat frame 200. Thereby, when the handle frame 320 rotates, the seat frame 200 is driven to move. The link assembly 650 includes a first connecting rod 651 and a second connecting rod 652 that are rotatably connected to each other. An end of the first connecting rod 651 away from the second connecting rod 652 is pivotally connected to the seat tube 310. An end of the second connecting rod 652 away from the first connecting rod 651 is pivotally connected to the seat tube 200 via a second rotating shaft N.

[0189] Furthermore, as shown in FIGS. 51 to 52, the handle frame 320 is a substantially U-shaped member formed by two handle vertical frames 321 and a handle horizontal frame 322 connected between the upper ends of the two handle vertical frames 321. The handle frame 320 is configured to be pivotable with respect to the seat tube 310. Specifically, ends of the two handle vertical frames 321 of the handle frame 320 away from the handle horizontal frame 322 are pivotally connected to the two seat tubes 310, respectively. The handle frame 320 is operable to drive the overall folding of the vehicle frame 300. Further, in this embodiment, the handle frame 320 can pivot from a first position to a second position with respect to the seat tube 310 to change the forward direction of the child carrier 1.

[0190] Furthermore, the first connecting rod 651 may be rotationally driven by the rotation of the handle vertical frame 321 of the handle frame 320. Specifically, when the handle frame 320 rotates in the direction F1, the first connecting rod 651 is rotationally driven in the direction F1 together with the handle vertical frame 321. Therefore, the first connecting rod 651 biases the seat frame 200 to move in the direction F2 via the second connecting rod 652, that is, to move toward the front side of the vehicle frame 300, and the position of the seat frame 200 can be adjusted.

[0191] Referring to FIGS. 51 and 52, in the present embodiment, an auxiliary frame 330 and a link frame 380 are further disposed between the armrest frame 320 and the first connecting rod 651. The auxiliary frame 330 is substantially rod-shaped. One end of the auxiliary frame 330 is connected between the link frame 380 and the seat tube 310, and the other end is pivotally connected to the armrest connector 371 of the armrest frame 370.

[0192] Referring to FIGS. 52 and 53, the link frame 380 has a substantially L-shaped rod structure. One end of the link frame 380 is pivotally connected to an end portion of the auxiliary frame 330 away from the armrest connector 371, and the other end is pivotally connected to the first rear leg support rod 351 (details will be described later). The handle frame 320 is pivotally connected to the link frame 380. Referring to FIG. 53, in this embodiment, the handle vertical frame 321, the link frame 380, and the auxiliary frame 330 are pivotally connected to the rear end portion on the opposite side of the seat tube 310.

[0193] Referring to FIGS. 54 and 55, the link assembly 650 of the present embodiment further includes a pivot pin 653. Specifically, the end of the pivot pin 653 is fixed to the end of the handle vertical frame 321 away from the handle horizontal frame 322 (i.e., the lower end of the handle vertical frame 321), and the other end of the pivot pin 653 sequentially passes through the link frame 380, the auxiliary frame 330, and the end of the first connecting rod 651 away from the second connecting rod 652. Further, the link frame 380, the auxiliary frame 330, and the first connecting rod 651 are all fixed to the pivot pin 653. The pivot pin 653 may be disposed to penetrate substantially the central portion of the restriction block 500. Of course, in other embodiments, the pivot pin 653 may alternatively not penetrate the restriction block 500. Further, the handle vertical frame 321 may be pivotally connected to the seat tube 310 via the pivot pin 653. During the folding of the vehicle frame 300, the link frame 380, the auxiliary frame 330, the first connecting rod 651, and the seat tube 310 can be driven along with the rotation of the handle vertical frame 321.

[0194] As shown in FIG. 55, in this embodiment, the pivot pin 653 is a square pin having a rectangular cross section. Of course, in other embodiments, the pivot pin 653 may alternatively be a pin shaft having a cross section of other shapes. In this way, the handle vertical frame 321 of the handle frame 320 is pivotally connected to the seat tube 310 via the pivot pin 653, and can rotationally drive the link frame 380, the auxiliary frame 330, and the first connecting rod 651.

[0195] Specifically, when the lock of the handle frame 320 is released and the vehicle frame 300 is folded, the handle vertical frame 321 rotates in a direction approaching the seat body 660, and the handle vertical frame 321 drives the link frame 380 and the auxiliary frame 330 via the pivot pin 653, thereby driving the folding of the seat tube 310 and the armrest frame 370. Further, the handle vertical frame 321 further drives the first connecting rod 651 via the pivot pin 653, whereby the first connecting rod 651 pushes the seat frame 200 to move along the seat tube 310 via the second connecting rod 652, thereby adjusting the position of the seat frame 200 during folding.

[0196] Also, in order to switch from the reclined state to the forward-tilted state (not shown) in FIG. 54, when only the lock of the handle frame 320 is released and pushed in, the child carrier 1 realizes the reversal of the handle frame 320. That is, the traveling direction of the child carrier 1 in this case is opposite to that before the switching. When the child carrier 1 travels, the first rear leg support rod 351 (details will be described later) is located in front of the first front leg support rod 341 (details will be described later). Of course, unless otherwise specified, the "front" and "rear" described below in the present disclosure refer to the traveling direction before the handle reversal shown in FIG. 51.

[0197] Referring to FIG. 54, the front leg support frame 340 includes a first front leg support rod 341 and a second front leg support rod 342 provided on both the left and right sides of the seat body 660. Further, the rear leg support frame 350 includes a first rear leg support rod 351 and a second rear leg support rod 352 (see FIG. 22) provided on both the left and right sides of the seat body 660. The first front leg support rod 341 and the first rear leg support rod 351 are arranged obliquely. Taking the side of the child carrier 1 as an example, the ends of the first front leg support rod 341 and the ends of the first rear leg support rod 351 are both pivotally connected to the opposing front ends of the armrest connector 371. Further, the other ends of the first front leg support rod 341 and the first rear leg support rod 351 away from the armrest connector 371 are both connected to the wheels.

[0198] Referring to FIGS. 55, 56 and 57, the child carrier 1 further includes a locking mechanism 700. The locking mechanism 700 includes the first slide sleeve 323 and the link member 331 described above, the second slide sleeve 327, the engagement block 750, and the fourth reset member 333. As shown in FIGS. 55 and 56, both the first slide sleeve 323 and the second slide sleeve 327 are slidably arranged on the handle vertical frame 321, and the second slide sleeve 327 is arranged on the side closer to the handle horizontal frame 322 of the first slide sleeve 323.

[0199] As shown in FIGS. 53 and 55, the link member 331 is slidably disposed on the auxiliary frame 330. Specifically, the link member 331 can include a link member slide portion 3312 and a link member protrusion 3311 that are connected to each other and disposed obliquely. That is, the link member protrusion 3311 protrudes from the side end surface of the link member slide portion 3312. In the present embodiment, the link member slide portion 3312 and the link member protrusion 3311 are orthogonal to each other. That is, the angle formed by the link member slide portion 3312 and the link member protrusion 3311 is 90 degrees. Of course, in other embodiments, the angle between the link member slide portion 3312 and the link member protrusion 3311 may alternatively be greater than 90 degrees or less than 90 degrees. In the present embodiment, the link member 331 has an integrally formed structure. Of course, in other embodiments, the link member 331 may alternatively be formed by connecting the link member slide portion 3312 and the link member protrusion 3311 by methods such as welding or riveting.

[0200] As shown in FIGS. 53 and 55, a slide groove 336 extending along the length direction is formed in the auxiliary frame 330, and at least a part of the link member slide portion 3312 is located in the slide groove 336 and is slidable along the slide groove 336. A lock groove 740 is formed at the connection portion between the auxiliary frame 330 and the link frame 380. The link member slide portion 3312 moves along the slide groove 336 and is inserted into the lock groove 740, so that the lock fixation between the auxiliary frame 330 and the link frame 380 can be realized. As shown in FIG. 53 and as described above, the fourth reset member 333 is disposed on the auxiliary frame 330, and both ends thereof are respectively in contact with the abutment portion 337 and the link member 331 in the auxiliary frame 330. The fourth reset member 333 always moves the link member 331 in a direction approaching the lock groove 740.

[0201] Furthermore, as shown in FIGS. 56 and 57, the first slide sleeve 323 abuts against the side surface of the link member protrusion 3311 away from the handle horizontal frame 322. When the first slide sleeve 323 moves in the direction F3 along the handle vertical frame 321, that is, when moving in the direction close to the handle horizontal frame 322, the first slide sleeve 323 can drive the link member protrusion 3311 to move together in the direction F3, that is, drive the link member 331 to move in the direction F3.

[0202] Referring again to FIG. 55, the vehicle frame 300 may further include a pivot shaft (not shown), the pivot shaft having an end fixed to the auxiliary frame 330 and another end pivotally connected to the armrest connector 371. The engagement block 750 is fixed to the side of the auxiliary frame 330 facing the armrest connector 371. In this embodiment, the engagement block 750 is disposed at a distance from the pivot axis, or the engagement block 750 is connected to the pivot axis, or the end of the pivot axis penetrates the auxiliary frame 330 to form the engagement block 750. Further, an engagement groove 3271 is formed in the second slide sleeve 327, and the engagement block 750 disposed on the auxiliary frame 330 engages with the engagement groove 3271, so that the armrest connector 371 may be locked and fixed to the auxiliary frame 330 and the handle vertical frame 321. Referring to FIGS. 56 and 57 together, a limiting boss 329 is further provided on the handle vertical frame 321. The limiting boss 329 protrudes in the direction close to the auxiliary frame 330, and a limiting stop sheet 751 is disposed below the locking block 750. The limiting boss 329 can abut against the limiting stop sheet 751 to limit the pivoting direction of the handle vertical frame 321 (or the handle frame 320). In this embodiment, the limiting boss 329 can abut against the limiting stop sheet 751 to prevent the pivoting of the handle vertical frame 321 (or the handle frame 320) in the direction opposite to the direction F1 (see FIG. 52).

[0203] Specifically, as shown in FIG. 56, in addition to being operatively connected to the first slide sleeve 323, the above-described handle operating member 324 is also operatively connected to the second slide sleeve 327. Therefore, the first slide sleeve 323 and the second slide sleeve 327 can be slid away from the handle pivot axis 325 (i.e., slid upward) via the third pulling member 326.

[0204] As shown in FIG. 59, when the third pulling member 326 is pulled, the first slide sleeve 323 pushes the link member 331, causing the link member 331 to move along the direction F3 and disengage from the locking groove 740, and the second slide sleeve 327 to move along the direction F3, causing the engaging block 750 to disengage from the engaging groove 3271. As a result, the lock between the auxiliary frame 330 and the link frame 380 is released, the lock between the armrest connector 371 and the auxiliary frame 330 is released, and the lock of the entire vehicle frame 300 is released. In this case, as shown in FIG. 60, the handle vertical frame 321 is pushed in the direction approaching the seat body 660, and the vehicle frame 300 can be folded as a whole.

[0205] Furthermore, taking the handle operating member 324 of one handle vertical frame 321 as an example, as shown in FIGS. 56 to 59, the handle vertical frame 321 is provided with a first slide sleeve reset member 3281 and a second slide sleeve reset member 3282. The handle vertical frame 321 is fixedly provided with a first pressing portion 3211 and a second pressing portion 3212, and the second pressing portion 3212 is disposed on the side closer to the handle horizontal frame 322 of the first pressing portion 3211. Both ends of the first slide sleeve reset member 3281 are respectively in contact with the first pressing portion 3211 and the first slide sleeve 323, and the first slide sleeve 323 is always moved in a direction opposite to F3, that is, a direction away from the handle horizontal frame 322.

[0206] Both ends of the second slide sleeve reset member 3282 are respectively in contact with the second pressing portion 3212 and the second slide sleeve 327, and constantly move the second slide sleeve 327 in the direction opposite to F3, that is, away from the armrest body 372. In this way, when the handle operation member 324 is no longer pushed and the vehicle frame 300 is deployed to the deployed state, under the action of the first slide sleeve reset member 3281 and the second slide sleeve reset member 3282, the first slide sleeve 323 and the second slide sleeve 327 are respectively reset. Under the action of the fourth reset member 333, the link member 331 is engaged with the lock groove 740 again, the engagement block 750 is engaged with the lock groove 740 again, and the child carrier 1 can be locked in the deployed state.

[0207] Furthermore, similar engagement blocks 750 may be provided corresponding to the first front leg support rod 341 and the second front leg support rod 342 respectively, so that the child carrier 1 can be engaged with the engagement groove 3271 of the second slide sleeve 327 during reverse use.

[0208] Hereinafter, the folding process of the child carrier will be specifically described by taking the structure on the seat body 660 side of the child carrier as an example.

[0209] As shown in FIGS. 56 and 57, when it is necessary to fold the child carrier, first, the handle operation portion 324 is pushed, and the handle operation portion 324 drives both the first slide sleeve 323 and the second slide sleeve 327 to move in the F3 direction via the third traction member 326. As a result, as shown in FIGS. 58 and 59, the first slide sleeve 323 moves in the F3 direction by pushing the link member 331 until it disengages from the lock groove 740, and the second slide sleeve 327 moves along the F3 direction until the engagement block 750 disengages from the engagement groove 3271. In this way, the lock between the auxiliary frame 330 and the link frame 380 is released, the lock between the armrest connector 371 and the auxiliary frame 330 is released, and the lock of the entire vehicle frame 300 is released. In this case, the handle frame 320 moves in a direction approaching the seat tube 310, and via the auxiliary frame 330 and the link frame 380, the armrest connector 371, the first front leg support rod 341, and the first rear leg support rod 351 are also driven to move in a direction approaching the seat tube 310.

[0210] On the other hand, the handle vertical frame 321 also rotationally drives the first connecting rod 651 in the F1 direction and connects the second connecting rod 652, thereby biasing the seat frame 200 to move in the F2 direction (see FIG. 52). When the vehicle frame 300 is folded, the clamp portion 230 provided on the seat frame 200 does not contact the movable end 413 (see FIG. 46), and the movable end 413 can drive the back frame vertical portion 410 (or the back frame 400) to approach the handle frame 320 under the continuous pushing of the bulging portion 530. When the child carrier 1 is in the folded state, the limiting block 500 contacts the movable end 413 at the second end face 520 as shown in FIGS. 47 and 49. In this way, the back frame vertical portion 410 (or the back frame 400) can be folded together with the connection of the vehicle frame 300. Since the folding process of the structure on the other side of the seat body 660 of the child carrier 1 is basically the same as the above process, a detailed description will not be repeated here.

[0211] The child carrier 1 according to this embodiment has at least the following technical effects.

[0212] In the child carrier 1, the back frame 400 is pivotally connected to the seat frame 200. The seat frame 200 is disposed on the vehicle frame 300 and can move relative to the limiting block 500, and the limiting block 500 is fixed to the vehicle frame 300. The movable end 413 is disposed between the seat frame 200 and the limiting block 500. When the vehicle frame 300 is in the deployed state, by restricting and fixing the movable end 413, the back frame 400 is restricted to a certain inclination angle, preventing potential safety hazards caused by the forward tilt of the back frame 400 due to the failure of the fixed restriction. During the switching of the vehicle frame 300 from the deployed state to the folded state, the limiting block 500 can also drive the movable end 413 to fall together with the vehicle frame 300, thereby realizing the function of folding the back frame 400 together with the vehicle frame 300. When the vehicle frame 300 is in the folded state, the limiting block 500 can continuously press against the movable end 413, thereby restricting the rotation angle of the back frame 400 and preventing interference between the back frame 400 and the armrest frame 370.

[0213] As shown in FIG. 61, in yet another embodiment, the child carrier 1 further includes a canopy 910 and a canopy mounting structure. Of course, the type of child carrier 1 using the canopy mounting structure is not limited to baby strollers. In other embodiments, the child carrier 1 may be, for example, a child seat, a tricycle for children, a baby bed, a game bed, a sleeping box, etc.

[0214] Referring to FIG. 61, in some embodiments, the back frame 400 may function as a carrier. The carrier may be, for example, a U-shaped tube, and both the left and right tubular bodies of the carrier have mounting sheets 412, and the mounting sheets 412 are configured to mount the canopy 910. In this embodiment, since the vehicle frame 300 is foldable, the child carrier 1 has a smaller volume when not in use. In some alternative embodiments, the vehicle frame 300 is not foldable.

[0215] Referring to FIG. 61, the canopy 910 is attached to the carrier, and the structure of the canopy 910 is substantially symmetric from left to right. In some embodiments, the canopy 910 includes, for example, a main canopy frame 911, one or more auxiliary canopy frames 912, and a sunshade cloth (not shown). The main canopy frame 911 and the auxiliary canopy frames 912 all have, for example, a U-shaped structure. The U-shaped structure may be made of, for example, a solid rib or a hollow tube. The U-shaped structure can include left and right arm segments and an arc-shaped segment connected to the upper ends of the left and right arm segments, and the lower ends of the left and right arm segments form the two ends of the U-shaped structure.

[0216] Referring to FIGS. 61 and 63, the main canopy frame 911 is provided with connecting sheets 9111 at both ends respectively, and each connecting sheet 9111 is detachably connected by magnetic attachment to a corresponding attachment sheet 412 on the carrier so as to attach the canopy 910 to the carrier. In some embodiments, when the canopy 910 is attached to the carrier, each attachment sheet 412 is located on the side surface, for example, the inner side, of the corresponding connecting sheet 9111. Although the connecting sheets 9111 are arranged at both ends of the main canopy frame 911, it should be noted that the connecting sheets 9111 are not limited thereto and may be arranged at other appropriate positions of the main canopy frame 911 as required. For example, in some alternative embodiments, the connecting sheets 9111 may be arranged at the center of the arm segments on both sides of the main canopy frame 911.

[0217] Referring to FIGS. 61 and 64, pivot sheets 9121 are provided at both ends of each auxiliary canopy frame 912 respectively, and each pivot sheet 9121 is pivotally connected to the connecting sheet 9111 of the main canopy frame 911, and each pivot sheet 9121 is arranged, for example, on the other side, for example, the outer peripheral side, of the corresponding connecting sheet 9111. The sunshade cloth covers the main canopy frame 911 and each auxiliary canopy frame 912. By deploying or folding one or more auxiliary canopy frames 912, the sunshade cloth can be deployed or folded. Although the pivot sheets 9121 are arranged at both ends of the auxiliary canopy frame 912, it should be noted that the pivot sheets 9121 are not limited thereto and may be arranged at other appropriate positions of the auxiliary canopy frame 912 as required. For example, in some alternative embodiments, the pivot sheets 9121 may be arranged at the center of the arm segments on both sides of the auxiliary canopy frame 912.

[0218] The canopy attachment structure according to an embodiment of the present disclosure includes that the attachment sheet 412 and the connection sheet 9111 are detachably connected by magnetic attachment. Referring to FIG. 65, when the connection sheet 9111 of the main canopy frame 911 and the attachment sheet 412 of the carrier are magnetically attracted, the canopy 910 is in the attached state. Referring to FIGS. 65 and 66, the removal direction of the connection sheet 9111 and the attachment sheet 412 is the left-right direction (also referred to as the lateral direction). Referring to FIG. 66, when it is necessary to remove the canopy 910, the two ends of the main canopy frame 911 are opened outward along the left-right direction, and the connection sheets 9111 located at the two ends of the main canopy frame 911 can move outward in the left-right direction until they overcome the magnetic attraction force and separate from the corresponding attachment sheet 412. Thereafter, the main canopy frame 911 can be easily removed, and the canopy 910 is in a disassembled state. When it is necessary to attach the canopy 910 again, open the two ends of the main canopy frame 911 again, align the connection sheets 9111 located at the two ends of the main canopy frame 911 with the corresponding attachment sheet 412 in the left-right direction, and release the opening force applied to the two ends of the main canopy frame 911. The connection sheets 9111 located at the two ends of the main canopy frame 911 automatically move toward each other in the left-right direction until they abut against the corresponding attachment sheet 412, and remain engaged with the corresponding attachment sheet 412 under the action of the magnetic attraction force, and the canopy 910 returns to the attached state.

[0219] Note that in some alternative embodiments, it should be noted that the disassembly direction between the connecting sheet 9111 of the main canopy frame 911 and the mounting sheet 412 of the carrier may be the vertical direction. More specifically, when it is necessary to attach the connecting sheet 9111 to the mounting sheet 412, it is not necessary to open both ends of the main canopy frame 911. The connecting sheet 9111 can directly move downward from above to the position where it engages with the mounting sheet 412 and remain engaged with the mounting sheet 412 under the action of magnetic attraction. When it is necessary to remove the connecting sheet 9111 from the mounting sheet 412, it is not necessary to open both ends of the main canopy frame 911. An upward thrust is directly applied to the connecting sheet 9111. This thrust overcomes the magnetic attraction between the connecting sheet 911 and the mounting sheet 412 and pushes the connecting sheet 911 to move upward from below until it is separated from the mounting sheet 412. It should be noted that the above vertical direction is not limited to the vertical direction perpendicular to the ground and may be inclined with respect to the ground.

[0220] Note that the terms related to directions such as "front", "rear", "left", and "right" in the embodiments of the present disclosure refer to the "front", "rear", "left", and "right" directions of the child sitting on the child carrier unless clearly specified and limited. Furthermore, in the figures, arrows F and B are used to schematically indicate the "front" and "rear" directions, and arrows L and R are used to schematically indicate the "left" and "right" directions. These terms related to directions are only intended to make the description of the embodiments of the present disclosure clearer and are not intended to unduly limit the protection scope of the present disclosure.

[0221] In the canopy mounting structure according to the embodiment of the present disclosure, since the connecting sheet 9111 of the main canopy frame 911 and the mounting sheet 412 of the carrier are detachably connected by magnetic attachment, the canopy 910 can be easily and quickly attached to or removed from the carrier, which brings great convenience to the cleaning and replacement of the canopy 910.

[0222] Referring to FIGS. 63, 64, and 66, in some embodiments, in order to facilitate the alignment and attachment of each connecting sheet 9111 with the corresponding mounting sheet 412, the mounting sheet 412 includes, for example, a first positioning portion 4121, and the connecting sheet 9111 includes, for example, a second positioning portion 9111b. The connecting sheet 9111 is connected to the first positioning portion 4121 of the mounting sheet 412 via the second positioning portion 9111b. In the embodiment shown in FIG. 66, the first positioning portion 4121 is a recess, the second positioning portion 9111b is a lug, and the recess is engaged with the lug. Of course, in some alternative embodiments, the first positioning portion 4121 may be, for example, a lug, and the second positioning portion 9111b may be, for example, a recess.

[0223] Referring to FIG. 66, the removal direction of the connecting sheet 9111 of the main canopy frame 911 and the mounting sheet 412 of the carrier is the left - right direction. Therefore, both the recess and the lug extend along the left - right direction. In some embodiments, the main canopy frame 911 may pivot relative to the carrier in the front - rear direction. In this case, the recess may be a circular recess, the lug may be a circular boss, the circular boss is pivotally connected to the circular recess, and the circular boss forms the pivot axis of the main canopy frame 911. In some alternative embodiments, when the removal direction of the connecting sheet 9111 and the mounting sheet 412 is the up - down direction, it can be understood that both the recess and the lug extend along the up - down direction.

[0224] Referring to FIGS. 64 to 66, in some embodiments, the recess functioning as the first positioning portion 4121 is a circular recess, the lug functioning as the second positioning portion 9111b is a circular boss, and a rotation limiting structure 930 is disposed between the recess and the lug, so that the mounting sheet 412 and the connecting sheet 9111 are connected without relative rotation, and the main canopy frame 911 cannot pivot relative to the carrier in the up - down direction.

[0225] In the embodiment shown in FIG. 65, the rotation restricting structure 930 includes a guide rib 931 and a guide groove 932. The guide rib 931 is disposed on the outer peripheral wall of the circular boss, and the guide groove 932 is disposed on the inner peripheral wall of the circular recess. Both the guide rib 931 and the guide groove 932 extend in the left-right direction and can be fitted to each other. The rotation restricting structure 930 has a relatively simple structure. Of course, in some alternative embodiments, the positions of the guide rib 931 and the guide groove 932 can be interchanged. That is, the guide rib 931 may protrude from the inner peripheral wall of the circular recess, and the guide groove 932 may be disposed on the outer peripheral wall of the circular boss.

[0226] It can be understood that the embodiment of the rotation restricting structure 930 is not limited to the above example as long as the relative rotation between the mounting sheet 412 and the connecting sheet 9111 can be restricted. For example, in some alternative embodiments, the recess functioning as the first positioning portion 4121 and the lug functioning as the second positioning portion 9111b may be non-circular, and the surfaces where the recess and the lug fit each other may include, for example, a cross section.

[0227] Figures 65 and 66 show exemplary embodiments for realizing a magnetic attachment between the connecting sheet 9111 and the mounting sheet 412. The canopy mounting structure may include a magnetic device 920. The magnetic device 920 may include, for example, a first magnetic member 921 and a second magnetic member 922. The first magnetic member 921 may be fixed to the mounting sheet 412, more specifically, to the first positioning portion 4121. The second magnetic member 922 may be fixed to the connecting sheet 9111, more specifically, to the second positioning portion 911b. At least one of the first magnetic member 921 and the second magnetic member 922 may be a magnet, the other may be a magnet of opposite polarity, or may be made of any material that can be adsorbed by the magnet. When the first positioning portion 4121 and the second positioning portion 9111b are connected, the first magnetic member 921 and the second magnetic member 922 are joined together, and since the first positioning portion 4121 and the second positioning portion 9111b remain connected, the canopy 910 is stably held in the mounted state. Of course, in some embodiments, the magnetic device 920 may not be provided, the connecting sheet 9111 and the mounting sheet 412 may be formed of a magnetic material, and the second positioning portion 9111b and the first positioning portion 4121 may be attached while remaining connected.

[0228] The first magnetic member 921 and the second magnetic member 922 may have any suitable shape and size, and may be fixed to the mounting sheet 412 and the connecting sheet 9111 by any suitable method. For example, in some embodiments not shown, the first magnetic member 921 and the mounting sheet 412 are joined by overmolding, and the second magnetic member 922 and the connecting sheet 9111 are joined by overmolding. In some embodiments not shown, the first magnetic member 921 and the mounting sheet 412 are attached together by adhesion, and the second magnetic member 922 and the connecting sheet 9111 are attached together by adhesion.

[0229] Referring to FIGS. 62, 63, 65, and 66, exemplary attachment modes of the first magnetic member 921 to the mounting sheet 412 and the second magnetic member 922 to the connecting sheet 911 are shown.

[0230] Specifically, referring to FIGS. 62 and 66, the first magnetic member 921 has, for example, an annular structure and is sleeved in a recess that functions as the first positioning portion 4121. The mounting sheet 412 has a central hole 4100 communicating with the recess, and the carrier has a mounting hole 4101. The first fastener 941 is attached to the mounting hole 4101, the central hole 4100, and the central hole 9210 of the first magnetic member 921. The first fastener 941 fixes the mounting sheet 412 to the carrier and at the same time fixes the first magnetic member 921 to the recess. In some embodiments, the first fastener 941 may be a bolt. The end of the bolt close to the first magnetic member 921 is connected to a retaining ring 9413 and a nut 9412. The retaining ring 9413 limits the axial position of the first magnetic member 921. Further, a first recess 9211 may be provided at an end of the first magnetic member 921. The first recess 9211 is configured to accommodate the retaining ring 9413 and the nut 9412, prevent the nut 9412 from protruding with respect to the first magnetic member 921, and help reduce the axial dimension. Of course, the first fastener 941 is not limited to a bolt. In some alternative embodiments, the first fastener 941 may be, for example, a rivet.

[0231] Referring to FIG. 66, in some embodiments, a first annular protrusion 4123 is provided on the bottom wall of the recess that functions as the first positioning portion 4121. The inner hole of the first annular protrusion 4123 is part of the central hole 4100. The first magnetic member 921 is sleeved on the first annular protrusion 4123 through its central hole 9210 and is indirectly attached to the first fastener 941. Further, the retaining ring 9413 abuts against the first annular protrusion 4123 instead of directly against the first magnetic member 921. Therefore, the first magnetic member 921 can be protected from external forces during tightening of the first fastener 941.

[0232] Referring to FIGS. 63 and 66, an accommodation cavity 9111a is provided on the end face of the lug that functions as the second positioning portion 9111b. The second magnetic member 922 has, for example, an annular structure and is nested in the accommodation cavity 911a, so that the second magnetic member 922 does not protrude from the end face of the lug, and the axial dimension can be reduced. Also, since the second magnetic member 922 does not protrude from the end face of the lug, a certain gap can be formed between the first magnetic member 921 and the second magnetic member 922. When the first magnetic member 921 and the second magnetic member 922 are magnetically fitted, this gap can prevent a large impact caused by the direct contact of the second magnetic member 922 against the first magnetic member 921, thereby helping to extend the overall service life of the magnetic device 920.

[0233] Referring to FIG. 66, the connecting sheet 9111 has a through hole 9110, and the through hole 9110 is located at the center of the lug. The pivoting sheet 9121 of the auxiliary canopy frame 912 has a through hole 9120. A second fastener 942 is attached to the through hole 9120, the through hole 9110, and the central hole 9220 of the second magnetic member 922. The pivoting sheet 9121 is pivotally connected to the connecting sheet 9111 via the second fastener 942. The second magnetic member 922 is connected to the lug via the second fastener 942. In some embodiments, the second fastener 942 may be a bolt, and the end of the bolt close to the second magnetic member 922 is connected to a retaining ring 9413 and a nut 9412, and the retaining ring 9413 limits the axial position of the second magnetic member 922. Further, a second recess 9221 may be provided at the end of the second magnetic member 922, and the second recess 9221 is configured to accommodate the retaining ring 9413 and the nut 9412, prevent the nut 9412 from protruding with respect to the second magnetic member 922, and help reduce the axial dimension. Of course, the second fastener 942 is not limited to a bolt. In some alternative embodiments, the second fastener 942 may be, for example, a rivet.

[0234] Referring to FIG. 66, in some embodiments, a second annular protrusion 9111c is provided on the bottom wall of the receiving cavity 911a, and the inner hole of the second annular protrusion 9111c is part of the through hole 9110. The second magnetic member 922 is sleeved on the second annular protrusion 9111c through its central hole 9220 and is indirectly attached to the second fastener 942. Further, the retaining ring 9413 abuts against the second annular protrusion 911c instead of directly against the second magnetic member 922. Therefore, the second magnetic member 922 can be protected from external forces during the tightening of the second fastener 942.

[0235] Referring to FIGS. 62, 65, and 66, in some embodiments, the carrier further includes a positioning hole 4102, and the positioning hole 4102 is parallel to the mounting hole 4101. The mounting sheet 412 includes a cam follower 4122, and the cam follower 4122 is inserted into the positioning hole 4102 to prevent the mounting sheet 412 from rotating around the first fastener 941.

[0236] Referring to FIG. 65, in some embodiments, a pivoting adjustment structure 950 can be disposed between the connecting sheet 9111 and the pivoting sheet 9121. The pivoting adjustment structure 950 is configured to adjust the relative position between the main canopy frame 911 and the auxiliary canopy frame 912, enabling the canopy 910 to have various usage states such as a folded state, a semi-open state, and a fully open state.

[0237] Figures 63 and 64 show an exemplary embodiment of the pivotal adjustment structure 950. An annular groove 9122 is provided in the pivotal seat 9121, and an annular wall 9191 is provided in the connecting seat 9111. The side wall of the annular groove 9122 faces the annular wall 9191. The pivotal adjustment structure 950 includes one or more slots 952 and one or more protrusions 951. The one or more slots 952 are arranged on the side wall of the annular groove 9122, and the one or more protrusions 951 are arranged on the annular wall 9191. The one or more slots 952 selectively engage with the one or more protrusions 951 to enable locking and adjustment of the relative position between the main canopy frame 911 and the auxiliary canopy frame 912.

[0238] When it is necessary to adjust the relative position between the main canopy frame 911 and the auxiliary canopy frame 912, the contact surface between the slot 952 and the protrusion 951 may be inclined so as to apply an appropriate circumferential force to the main canopy frame 911 and / or the auxiliary canopy frame 912, and the engagement depth of both may be designed as required. That is, by changing the engagement position between the protrusion 951 and the slot 952, the relative position between the main canopy frame 911 and the auxiliary canopy frame 912 can be changed. Also, the number of the protrusions 951 and the slots 952 may be the same or different, and both the number of the protrusions 951 and the number of the slots 952 may be two or more. When a plurality of protrusions 951 and a plurality of slots 952 are provided, the plurality of protrusions 951 and the plurality of slots 952 are evenly arranged in the circumferential direction.

[0239] It will be understood that the embodiments of the pivotal adjustment structure 950 are not limited to the above examples. For example, one or more slots 952 may be arranged on the annular wall 9191, and one or more protrusions 951 may be arranged on the side wall of the annular groove 9122. Further, in some alternative embodiments, the positions of the annular groove 9122 and the annular wall 9191 on the pivotal seat 9121 and the connecting seat 9111 may be interchanged.

[0240] Referring to FIG. 63, in some embodiments, the annular wall 9191 is disposed on a locking ring 919 detachably joined to the connecting sheet 9111, and the annular wall 9191 is, for example, the outer peripheral wall of the locking ring 919. The locking ring 919 is connected to the connecting sheet 9111 in a non-rotatable manner relative to each other. For example, one or more holes 9192 may be provided in the locking ring 919, and one or more stoppers 9119 may be provided in the connecting sheet 911, and the holes 9192 may be connected to the stoppers 9119 so that the locking ring 919 and the connecting sheet 9111 cannot rotate relative to each other. In some embodiments, the locking ring 919 may also include a plurality of lightening holes 9193. The annular wall 9191 is disposed on the locking ring 919, which helps to reduce the processing difficulty of the connecting sheet 9111. Of course, in some alternative embodiments, the annular wall 9191 may be integrally formed with the connecting sheet 9111.

[0241] Referring to FIG. 65, in some embodiments, a swing limiting structure 960 can be disposed between the connecting sheet 9111 and the pivoting sheet 9121. The swing limiting structure 960 is configured to limit the pivoting angle between the main canopy frame 911 and the auxiliary canopy frame 912, and prevent damage to the sunshade cloth caused by excessive deployment or excessive folding of the auxiliary canopy frame 912.

[0242] FIG. 63 and FIG. 64 show an exemplary embodiment of the swing restriction structure 960. The swing restriction structure 960 includes a first arcuate block 961 and a second arcuate block 962. The first arcuate block 961 is disposed on the connecting sheet 9111, and the second arcuate block 962 is disposed on the pivoting sheet 9121. The sum of the angles formed by the two ends of the first arcuate block 961 and the angles formed by the two ends of the second arcuate block 962 is less than 360°. When the auxiliary canopy frame 912 rotates relative to the main canopy frame 911, the two ends of the first arcuate block 961 selectively abut against the two ends of the second arcuate block 962, and the maximum angles of the forward and backward pivoting of the auxiliary canopy frame 912 are restricted.

[0243] As can be seen from FIG. 63, FIG. 64, and FIG. 66, in some embodiments, the first arcuate block 961 is integrally formed with the connecting sheet 9111, the second arcuate block 962 is integrally formed with the pivoting sheet 9121, and both the first arcuate block 961 and the second arcuate block 962 are radially sandwiched between the hole wall of the central hole 9190 of the lock ring 919 and the second fastener 942. This design helps to improve the structural compactness and structural strength, and helps to reduce the axial dimension of the connecting sheet 9111 and the pivoting sheet 9121 after assembly.

[0244] In the above embodiment, the child carrier 1 is a baby stroller, and the description is based on an example in which the back frame 400 of the baby stroller functions as a carrier including the attachment seat 412. It can be understood that the components functioning as the carrier are not limited to the back frame 400. For example, in some embodiments, the handle frame 320 of the vehicle frame 300 may function as a carrier. Further, when the type of the child carrier 1 is changed, the components functioning as the carrier may be changed accordingly, and the manner in which the attachment seat 412 and the carrier are connected may also be adaptively changed. For example, when the child carrier 1 is a child seat, the seat body 660 of the child seat may function as a carrier. In this case, the two attachment seats 412 are respectively fixed to the back surfaces of two sides of the child seat, for example, by screwing or the like. Further, the structure of the canopy 190 is not limited to the above example. For example, in some alternative embodiments, the canopy 190 may not include the auxiliary canopy frame 912.

[0245] The technical features in the above embodiments may be randomly combined. For the sake of brief description, not all possible combinations of the technical features in the above embodiments are described. However, all combinations of the technical features are considered to be included within the scope described in this specification as long as they do not conflict with each other.

[0246] The above embodiments merely illustrate some embodiments of the present disclosure, and although the descriptions are specific and detailed, they should not be understood as limiting the patent scope of the present disclosure. Those skilled in the art should note that without departing from the concept of the present disclosure, further modifications and improvements can be made, and all of these are included in the protection scope of the present disclosure. Therefore, the patent protection scope of the present disclosure should follow the appended patent claims.

Description of Reference Numerals

[0247] 1: Child carrier 100: Restriction device 101: Rotating shaft 102: First rotation direction 103: Second rotation direction 104: Locking direction 105: Unlocking direction 106: First rotation position 107: Second rotation position 108: First sliding direction 109: Second sliding direction 110: Housing 111: Limiting groove 111a: Front side 111b: Rear side 111c: Limiting groove slope 112: Receiving groove 114: First housing 1141: First shaft hole 1141a: First shaft hole wall 1142: Slide groove 1143: First disc part 1144: First rod part 115: Second housing 1151: Second shaft hole 1152: First locking groove 1153: Second locking groove 1154: Second disc part 1155: Second rod part 120: Limiting member 121: First limiting member end 121a: Front side of the limiting head 122: Second limiting member end 130: Engaging pin 140: Connecting sheet 141: Connecting sheet body 142: Tension member groove 143: Tension member sleeve receiving part 150: Locking member 151: First locking part 151a: First locking tooth 151b: First front side 151c: First rear side 152: Second locking part 152a: Second locking tooth 152b: Second front surface 152c: Second rear surface 153: Long hole 154: Fixed part 161: Lock release member 162: Driving member 1621: Driving groove 164: Driving pin 191: First traction member (traction member between the limiting device and the auxiliary frame) 191a: Cable sleeve 191b: Cable 191c: Fixed head 194: First reset member 200: Seat frame (second object) 230: Clamp part 300: Vehicle frame 310: Seat tube 320: Handle frame 321: Handle vertical frame 3211: First pressing part 3212: Second pressing part 322: Handle horizontal frame 323: First slide sleeve 3231: Sleeve protrusion 324: Handle operating member 325: Handle pivot axis 326: Third traction member (traction member inside the handle frame) 327: Second slide sleeve 3271: Engagement groove 3281: First slide sleeve reset member 3282: Second slide sleeve reset member 329: Limiting boss 330: Auxiliary frame 331: Link member 3311: Link member protrusion 3312: Link member slide part 332: Connector 333: Fourth reset member (reset member in the auxiliary frame) 334: Cable fixing part 335: Arrow (falling direction of auxiliary frame) 336: Slide groove 337: Apron part 340: Front leg support frame, 341: First front leg support rod 342: Second front leg support rod 350: Rear leg support frame 351: First rear leg support rod 352: Second rear leg support rod 360: Fastener 370: Armrest frame 371: Armrest connector 372: Armrest body 380: Link frame 400: Back frame (first object) 401: Back frame pivot axis 410: Vertical part of back frame 4100: Central hole 4101: Mounting hole 4102: Positioning hole 411: Long groove 412: Mounting sheet 4121: First positioning part 4122: Cam follower 4123: First annular protrusion 413: Movable end 420: Horizontal part of back frame 430: Back frame operating member 431: Lug 440: Link member 441: Fixed part 442: Concave part 450: Back frame operating member shaft 460: Third reset member (back frame reset member) 465: Second traction member (back frame traction member) 4651: First end of the second traction member 4652: Second end of the second traction member 470: End member 480: Operating member housing part 490: Slider 495: Second reset member (slider reset member) 500: Restriction block 510: First end face 520: Second end face 530: Bulging part 610: Backrest plate 620: Adjustment harness 630: Adjustment buckle 640: Tie-down member 650: Link assembly 651: First connecting rod 652: Second connecting rod 653: Pivoting pin 660: Seat body 700: Lock mechanism 710: First slider 720: Second slider 721: Engagement groove 730: Lock pin 731: Slide part 732: Abatement part 740: Lock groove 750: Engagement block 751: Restriction stop sheet 760: Fifth reset member 800: Operating mechanism 810: Lock release operating member 820: Traction member 830: Sixth reset member 840: Seventh reset member M: First rotating shaft N: Second rotating shaft 910: Canopy 911: Main canopy frame 9110: Through hole 9111: Connecting sheet 9111a: Accommodation cavity 9111b: Second positioning part 9111c: Second annular protruding part 9119: Stopper 912: Auxiliary canopy frame 9120: Through hole 9121: Pivoting seat 9122: Annular groove 919: Lock ring 9190: Central hole 9191: Annular wall 9192: Hole 9193: Lightening hole 920: Magnetic device 921: First magnetic member 9210: Central hole 9211: First recess 922: Second magnetic member 9220: Central hole 9221: Second recess 930: Rotation limiting structure 931: Guide rib 932: Guide groove 941: First fastener 9412: Nut 9413: Retaining ring 942: Second fastener 9422: Nut 9423: Retaining ring 950: Pivoting adjustment structure 951: Protrusion 952: Slot 960: Swing limiting structure 961: First arcuate block 962: Second arcuate block

Claims

1. A limiting device for operably limiting the rotational angle of a first object relative to a second object, wherein the limiting device comprises: a housing disposed between the first object and the second object and including at least one limiting groove; a limiting member disposed between the first object and the second object and movable between a limiting position and a non-limiting position relative to the housing via the at least one limiting groove; when the limiting member is in the limiting position, the limiting member prevents the first object from rotating relative to the second object in a first rotational direction, and allows the first object to rotate relative to the second object in a second rotational direction opposite to the first rotational direction. The limiting device.

2. An actuating device is disposed between the first object and the second object, the limiting device comprises a first reset member configured to bias the limiting member towards the limiting position, the limiting member is drivably connected to the actuating device, and the actuating device is operable to actuate the limiting member to the non-limiting position. The limiting device according to claim 1.

3. the limiting device comprises a first traction member having an end connected to the limiting member and another end connected to the actuating device, the actuating device is operable to actuate the limiting member to the non-limiting position via the first traction member. The limiting device according to claim 2.

4. the limiting device further comprises an engagement pin disposed on the first object, the engagement pin being pivotable with the first object and lockable in the at least one limiting groove, the limiting member is disposed on a side of the at least one limiting groove, when the limiting member is in the limiting position, the limiting member can prevent the engagement pin from being disengaged from the at least one limiting groove. The limiting device according to claim 1.

5. the housing is attached to the second object and pivotably connected to the first object, a plurality of continuous limiting grooves are provided on a side surface of the housing adjacent to the first object along its pivoting direction around the pivot axis of the first object, the engagement pin has an end inserted into the plurality of limiting grooves from the side surface of the housing and another end inserted into the first object. The engaging pin is movable between a low position where the engaging pin is locked in one of the plurality of limiting grooves and a high position where the engaging pin is positioned beyond one of the plurality of limiting grooves with respect to the housing. The limiting device according to claim 4.

6. Each of the plurality of limiting grooves has an arcuate wall, and the arcuate walls of the plurality of limiting grooves are connected. Each of the arcuate walls has a rear surface with a concave arcuate surface on a side away from the limiting member and a front surface with an inclined surface or a convex arcuate surface on another side facing the limiting member. The limiting device according to claim 5.

7. The engaging pin extends parallel to the pivot axis. The limiting device according to claim 6.

8. The first object has a shape of a hollow tube and is provided with a long groove facing the limiting device. The first object A slider disposed on the first object, wherein the engaging pin is inserted into the slider, and the engaging pin is driven by the slider to be movable between the low position and the high position. A second traction member having an end connected to the slider and another end connected to a back frame operating member disposed on the first object. The back frame operating member is operable to drive the engaging pin to move to the high position via the second traction member and the slider. A second reset member disposed on the first object and biasing the slider to drive the engaging pin to the low position. The limiting device according to claim 5.

9. The housing A first housing fixed to the first object and having the at least one limiting groove. A second housing fixed to the second object and disposed on the opposite side of the first housing along a rotation axis. The first housing is rotatable about the rotation axis with respect to the second housing. The limiting member is disposed in the second housing. The limiting device according to claim 1.

10. An operating device is disposed between the first object and the second object. The limiting device further A driving member joined to the limiting member and capable of driving the limiting member to the limit position or the non-limit position. A first reset member that biases the drive member to urge the limiting member to the limiting position; The limiting device according to claim 1, wherein the limiting member is drivably connected to the driving device, and the operating device is operable to operate the limiting member to the non-limiting position via the driving member.

11. Further comprising a first traction member; The limiting device according to claim 10, wherein the operating device is connected to the driving member via the first traction member.

12. The driving member is provided with a driving groove; The limiting device further comprises a driving pin, the driving pin is fixed to the limiting member and is slidably inserted into the driving groove; The limiting device according to claim 10, wherein the limiting member is movable between the limiting position and the non-limiting position by the sliding of the driving pin.

13. The limiting groove is formed radially inward from the circumferential side wall of the first housing and opens radially outward. The limiting device according to claim 9.

14. The limiting member faces the first housing and has a first limiting member end with a limiting head front surface inclined backward with respect to the first rotation direction, and is on the side opposite to the first limiting member end and away from the first housing. The limiting device according to claim 9, which has a second limiting member end.

15. The limiting device is disposed between the first housing and the second housing, and further comprises a locking member movable between a locked position and an unlocked position; When the locking member is in the locked position, the locking member prevents relative rotation between the first housing and the second housing, and when the locking member is in the unlocked position, the locking member allows relative rotation between the first housing and the second housing. The limiting device according to claim 9.

16. The first housing is formed inside the first housing and is provided with a slide groove extending in the radial direction. The locking member is disposed in the slide groove and rotates about a rotation axis together with the first housing. The limiting device according to claim 15.

17. The first housing includes a first shaft hole penetrating the first housing along the rotation axis, and a first shaft hole wall rising from the axial direction of the first housing to form a columnar wall. The locking member includes a long hole disposed in the locking member and disposed around the circumferential wall of the first shaft hole. The limiting device further includes a locking reset member disposed in the long hole, and two ends of the locking reset member are respectively in contact with the circumferential wall of the first shaft hole and the end of the long hole, and bias the locking member toward the locking position. The limiting device according to claim 16.

18. The second housing a second disc portion, a second shaft hole disposed in the second disc portion, at least one first locking groove disposed inside the peripheral edge of the second disc portion, at least one second locking groove disposed between the outer peripheral surface of the second disc portion and the second shaft hole, and The locking member a first locking portion located at the first end of the locking member, a second locking portion located at the second end of the locking member, and the second locking portion has a different position from the first end and the second end. When the locking member is in the locking position, the first locking portion and the second locking portion are respectively engaged with the first locking groove and the second locking groove. The limiting device according to claim 15.

19. The first end and the second end are disposed on opposite sides. The limiting device according to claim 18.

20. A plurality of first locking grooves are arranged in the circumferential direction, A plurality of second locking grooves are arranged in the circumferential direction, The positions of the first locking groove and the second locking groove are such that when the first object is in the first rotational position and when the first object is in at least one second rotational position in the second rotational direction with respect to the first rotational position, the first locking portion and the second locking portion are respectively engageable with different first locking grooves and second locking grooves. The limiting device according to claim 19.

21. The first locking portion includes at least one first locking tooth, The second locking portion includes at least one second locking tooth, When the locking member is in the locking position, the first locking tooth is inserted into the at least one first locking groove, and the second locking tooth is inserted into the at least one second locking groove. The limiting device according to claim 19.

22. The first locking tooth and the second locking tooth are each formed as a ratchet tooth, and each has a first front surface and a second front surface that are inclined rearward along the first rotation direction. The limiting device according to claim 21.

23. The first locking groove is disposed on the inner circumferential side of the peripheral edge of the second disk portion, and the second locking groove is disposed between the peripheral edge of the second disk portion and the second shaft hole, and is substantially radially opposed to the first locking groove. The limiting device according to claim 18.

24. The first housing further includes a first disk portion formed in a disk shape with an axially closed end, and a first rod portion extending from the peripheral edge of the first disk portion and connected to the first object. The second housing includes a second disk portion formed in a disk shape with an axially closed end, and a second rod portion extending from the peripheral edge of the second disk portion and connected to the second object. The first disk portion and the second disk portion are rotatably fixed to each other about the rotation axis, forming a cylindrical box-shaped structure with two axially closed ends. The limiting device according to claim 9.

25. The first housing includes a limiting groove. When the first object is in a first rotational position relative to the second object, the limiting groove is aligned with the limiting member, and the limiting member extends into the limiting groove and enters the limiting position, and then engages with the first housing. The limiting device according to claim 9.

26. When the first object is not in the first rotational position relative to the second object, the limiting groove is not aligned with the limiting member so as not to allow the limiting member to extend into the limiting groove and enter the limiting position. The limiting device according to claim 25.

27. When the first object is not in the first rotational position relative to the second object, the limiting member abuts against the peripheral edge of the first housing. The limiting device according to claim 26.

28. The limiting member moves linearly along a first sliding direction perpendicular to the rotation axis, and the driving member moves within the second object along a second sliding direction. The second sliding direction is perpendicular to the rotation axis and forms an angle with the first sliding direction. The limiting device according to claim 12.

29. The drive groove is disposed at an end of the drive member close to the limiting member, extends perpendicular to the second sliding direction, and the drive pin extends parallel to the rotation axis. The limiting device according to claim 28.

30. A vehicle frame, A seat frame disposed on the vehicle frame, A back frame connected to the rear end of the seat frame, A child carrier comprising the limiting device according to claim 1, wherein The limiting device is connected between the seat frame and the back frame, the first object is the back frame, and the second object is the seat frame.

31. The back frame is pivotally connected to the seat frame and is pivotable between a first position away from the seat frame and a second position towards the seat frame about a pivot axis of the back frame with respect to the seat frame, and the limiting member limits excessive forward tilting of the back frame with respect to the second position. The child carrier according to claim 30.

32. The first rotation direction is the forward tilting rotation direction of the back frame, the second rotation direction is the rearward tilting rotation direction of the back frame, and the first rotation position is the maximum forward tilting position of the back frame in the use state. The child carrier according to claim 30.

33. The vehicle frame further comprises a seat tube, and the seat frame is disposed on the seat tube such that the seat frame is slidable back and forth. The child carrier according to claim 30.

34. The vehicle frame further comprises Armrest frames disposed on two outer sides of the back frame, A handle frame disposed outside the armrest frame, pivotally connected to the armrest frame, and pivotable with respect to the seat frame about a handle pivot axis substantially parallel to the pivot axis of the back frame. The child carrier further comprises A first slide sleeve sleeving the lower end of the handle frame and close to the handle pivot axis. A handle frame operating member that is operably connected to the first slide sleeve and is operable to pull the first slide sleeve in a direction away from the handle pivot axis, thereby driving the limiting member to move to the limiting position. The child carrier according to claim 30 includes such a member.

35. A link member is disposed on a side portion of the armrest frame facing the handle frame. The link member is slidable on the armrest frame. The first slide sleeve is connected to the link member. Sliding the first slide sleeve in a direction away from the handle pivot axis can drive the link member to slide, thereby bringing the limiting member to the non-limiting position. The child carrier according to claim 34 includes such a structure.

36. The first slide sleeve includes a first slide sleeve protrusion extending toward the armrest frame. The link member has a link member protrusion extending toward the handle frame. The first slide sleeve protrusion abuts against the link member protrusion. The child carrier according to claim 35 has such a configuration.

37. The armrest frame further includes a connector fixed to the link member and inserted into the armrest frame. The link member protrusion extends from the connector toward the handle frame. A fourth reset member is disposed between the connector and the armrest frame. The link member protrusion is always in contact with the first slide sleeve protrusion. The child carrier according to claim 36 has such a design.

38. The vehicle frame further includes a seat tube. The seat frame is disposed on the seat tube so as to be slidable back and forth. The limiting device is fixed to the seat frame so as to slide longitudinally on the seat tube together with the seat frame. The child carrier according to claim 34 has such a structure.

39. The handle frame further includes a third traction member disposed inside the handle frame and having two ends respectively connected to the first slide sleeve and the handle frame operating member. The handle frame operating member is disposed outside the handle frame, and the handle frame operating member is operable to drive the first slide sleeve of the first stage to move along the handle frame via the third traction member. The child carrier according to claim 38.

40. The armrest frame is connected to a side surface of the seat frame and is pivotable between a deployed position and a collapsed position with respect to the seat frame. Two end portions of the first traction member are respectively connected to the limiting member and the armrest frame. The child carrier according to claim 38.

41. Further comprising a connecting seat disposed at an end of the seat frame close to the back frame, The connecting seat is a connecting seat body, and a traction member groove disposed on a side of the connecting seat body facing away from the seat frame, through which the first traction member passing through and connected to the armrest frame, and a traction member sleeve accommodating portion disposed at an end of the traction member groove, the width of the traction member sleeve accommodating portion being larger than the width of the traction member groove. The child carrier according to claim 40.

42. The first traction member includes a cable sleeve and a cable slidably passed through the cable sleeve. Both ends of the cable are respectively connected to the limiting member and the armrest frame via the connecting seat. Both ends of the cable sleeve are respectively connected to the housing and the connecting seat, When the armrest frame pivots from the deployed position to the collapsed position, the limiting member is driven to the unrestricted position via the first traction member. The child carrier according to claim 41.

43. The child carrier further comprises a limiting block fixed to the vehicle frame, The seat frame is disposed on the vehicle frame and is movable with respect to the limiting block. The back frame is pivotably connected to the seat frame. The back frame has a movable end located between the seat frame and the limiting block, and the movable end is restricted and fixed when the vehicle frame is in a deployed state. The child carrier according to claim 30.

44. The child carrier further includes a restriction block fixed to the vehicle frame, wherein the back frame is pivotally attached to the vehicle frame, the back frame has a movable end, the restriction block is disposed adjacent to the movable end, and when the vehicle frame switches from the deployed state to the folded state, the movable end is pressed against the restriction block, and the back frame is assisted to pivot and fold with respect to the vehicle frame. The child carrier according to claim 30.

45. The child carrier includes a canopy having a main canopy frame, and a canopy attachment structure configured to attach the canopy to the vehicle frame or the back frame. The canopy attachment structure includes an attachment seat disposed on the vehicle frame or the back frame, and a connection seat disposed on the main canopy frame. The connection seat is detachably connected to the attachment seat by a magnet. The child carrier according to claim 30.

46. A vehicle frame, a restriction block fixed to the vehicle frame, a seat frame disposed on the vehicle frame and movable with respect to the block, and a back frame pivotally connected to the seat frame and having a movable end. The movable end is located between the seat frame and the restriction block, and when the vehicle frame is in the deployed state, the movable end is restricted and fixed. Child carrier.

47. The seat frame includes a clamp portion. When the vehicle frame is in the deployed state, both sides of the movable end are respectively in contact with the restriction block and the clamp portion. When the vehicle frame switches from the deployed state to the folded state, the movable end is separated from the clamp portion, and the restriction block presses the movable end to pivot relative to the seat frame. The child carrier according to claim 46.

48. The vehicle frame includes a seat tube, the restriction block is fixed to the seat tube, and the seat frame is slidably disposed on the seat tube. The child carrier according to claim 46.

49. The limiting block has a bulging portion extending toward the movable end, and when switching the vehicle frame from the deployed state to the folded state, the bulging portion is pressed against the movable end to pivotally drive the back frame, the child carrier according to claim 46.

50. When the vehicle frame is in the folded state, the seat frame is spaced apart from the movable end, and the limiting block abuts against the movable end to limit the rotation of the back frame, the child carrier according to claim 46.

51. The limiting block has a first end face and a second end face, and the side surface of the first end face and the side surface of the second end face are combined to form a bulging portion. The first end face abuts against the movable end when the vehicle frame is in the deployed state, and the second end face abuts against the movable end when the vehicle frame is in the folded state, the child carrier according to claim 46.

52. The vehicle frame includes a seat tube, and the child carrier further includes a tie-down member. Both ends of the tie-down member are respectively connected to the back frame and the vehicle frame. The tie-down member can limit the pivotal movement of the back frame in a direction approaching the seat tube of the vehicle frame when the vehicle frame is in the deployed state, the child carrier according to claim 46.

53. The child carrier according to claim 52, wherein the tie-down member is a webbing.

54. The vehicle frame further includes a seat tube and a handle frame. The handle frame is pivotally connected to the seat tube, and the handle frame is operable to drive the overall folding of the vehicle frame, the child carrier according to claim 46.

55. The child carrier further includes a link member. The vehicle frame includes a handle frame. The link member is connected between the handle frame and the seat frame. When the handle frame rotates, it drives the seat frame to slide relative to the limiting block, the child carrier according to claim 46.

56. The child carrier further includes a link member, the vehicle frame includes a seat tube and a handle frame, the limiting block is fixed to the seat tube, the seat frame is movably disposed on the seat tube, and rotation of the handle frame in a direction close to the seat tube can drive the seat frame to move away from the limiting block along the seat tube via the link member. The child carrier according to claim 46.

57. The child carrier further includes a link assembly, the link assembly includes a first connecting rod and a second connecting rod, an end of the first connecting rod is connected to the vehicle frame and is rotatable with the rotation of the handle frame, another end of the first connecting rod is rotatably connected to an end of the second connecting rod, and another end of the second connecting rod away from the first connecting rod is pivotally connected to the seat frame. The child carrier according to claim 56.

58. The link assembly further includes a pivot pin, the handle frame is connected to an end of the pivot pin, and an end of the first connecting rod is fixedly connected to the pivot pin. The child carrier according to claim 57.

59. The child carrier further includes a locking mechanism. The vehicle frame further includes a handle frame, an auxiliary frame, a link frame, and a rear leg support frame. The auxiliary frame is fixedly connected to the handle frame. The link frame has an end pivotally connected to the rear leg support frame and another end pivotally connected to the auxiliary frame. The locking mechanism is disposed between the auxiliary frame and the link frame. When the locking mechanism is in the unlocked state, the link frame is rotatable relative to the auxiliary frame. When the locking mechanism is in the locked state, the link frame is fixed relative to the auxiliary frame. The child carrier according to claim 46.

60. The child carrier further includes a link assembly and a pivot pin. The link assembly includes a first connecting rod and a second connecting rod. An end of the first connecting rod is connected to the vehicle frame and is rotatable with the rotation of the handle frame. Another end of the first connecting rod is pivotally connected to an end of the second connecting rod. The other end of the second connecting rod away from the first connecting rod is pivotally connected to the seat frame. The auxiliary frame and the connecting frame are pivotally connected to the vehicle frame via the pivot pin. The end of the first connecting rod is fixedly connected to the pivot pin. The child carrier according to claim 59.

61. A vehicle frame, A limiting block fixed to the vehicle frame, A back frame pivotally attached to the vehicle frame and having a movable end, The limiting block is disposed adjacent to the movable end and pushes the movable end when the vehicle frame switches from the deployed state to the folded state, assisting the back frame to pivot and fold relative to the vehicle frame. The child carrier is characterized by this.

62. The child carrier according to claim 61, further comprising a seat frame disposed on the vehicle frame and movable relative to the limiting block. The seat frame is movable relative to the limiting block, and the movable end is held between the limiting block and the seat frame when the vehicle frame is in the deployed state.

63. The child carrier according to claim 61, further comprising a seat frame disposed on the vehicle frame and relatively movable with respect to the limiting block. The seat frame is relatively movable with respect to the limiting block. The back frame is pivotally connected to the seat frame. During the switching of the vehicle frame from the deployed state to the folded state, the movable end moves away from the seat frame, and the limiting block is pressed against the movable end to pivot relative to the seat frame.

64. The child carrier according to claim 61, wherein when the vehicle frame is in the folded state, the limiting block abuts against the movable end to limit the rotation of the back frame.

65. The child carrier according to claim 61, wherein when the vehicle frame is in the deployed state and the folded state, the movable end abuts against different portions of the limiting block respectively.

66. The child carrier further comprises a backrest plate and an adjustment harness, The backrest plate is arranged in a rotatable manner with respect to the back frame, The back frame comprises two vertical back frame portions located on both sides of the vehicle frame. One end of the adjustment harness is fixed to one of the vertical back frame portions, and the other end of the adjustment harness bypasses the backrest plate and is fixed to the other vertical back frame portion. The adjustment harness has an adjustable length. The child carrier according to any one of claims 46 to 65.

67. A canopy attachment structure for attaching a canopy to a carrier, The canopy comprises a main canopy frame, The canopy attachment structure, An attachment sheet arranged on the carrier, And a connection sheet arranged on the main canopy frame, The connection sheet is detachably connected to the attachment sheet by a magnet attachment. The canopy attachment structure is characterized by this.

68. The connection sheet according to claim 67, wherein the connection sheet is magnetically attached to the attachment sheet or is movable laterally so as to be removed from the attachment sheet.

69. The attachment sheet comprises a first positioning portion, and the first positioning portion comprises a first magnetic member, The connection sheet comprises a second positioning portion, and the second positioning portion is configured to be connected to the first positioning portion. The second positioning portion comprises a second magnetic member, The first magnetic member and the second magnetic member are attached to each other so that the first positioning portion and the second positioning portion remain connected. The canopy attachment structure according to claim 67.

70. One of the first positioning portion and the second positioning portion is a recess, and the other is a lug, and the recess is engaged with the lug. The canopy attachment structure according to claim 69.

71. The first magnetic member and the mounting sheet are integrally attached or integrally joined by overmolding, and the second magnetic member and the connecting sheet are integrally attached or integrally joined by overmolding. The canopy mounting structure according to claim 69.

72. A receiving cavity is arranged on the end face of the lug facing the recess, one of the first magnetic member and the second magnetic member is arranged in the recess, and the other of the first magnetic member and the second magnetic member is arranged in the receiving cavity. The canopy mounting structure according to claim 70.

73. Both the recess and the lug extend along the lateral direction, and a rotation limiting structure is arranged between the recess and the lug. The canopy mounting structure according to claim 70.

74. The rotation limiting structure includes a guide rib and a guide groove that fit together. One of the guide rib and the guide groove is arranged on the inner peripheral wall of the recess, and the other of the guide rib and the guide groove is arranged on the outer peripheral wall of the lug. The canopy mounting structure according to claim 73.

75. The mounting sheet is fixed to the vehicle frame and the back frame via a first fastener, and the first magnet member is attached to the mounting sheet via the first fastener. The canopy mounting structure according to any one of claims 69 to 74.

76. The canopy further includes an auxiliary canopy frame, and the auxiliary canopy frame includes a pivot seat. The pivot seat is pivotally connected to the connecting sheet via a second fastener, and the second magnet member is attached to the connecting sheet via the second fastener. The canopy mounting structure according to any one of claims 69 to 74.

77. A pivot adjustment structure is arranged between the connecting sheet and the pivot seat, and the pivot adjustment structure is configured to adjust the relative position between the main canopy frame and the auxiliary canopy frame, and / or A swing limiting structure is arranged between the connecting sheet and the pivot seat, and the swing limiting structure is configured to limit the pivot angle between the main canopy frame and the auxiliary canopy frame. The canopy mounting structure according to claim 76.

78. An annular groove is provided in one of the connecting sheet and the pivoting sheet, and an annular wall is provided in the other of the connecting sheet and the pivoting sheet. The side wall of the annular groove faces the annular wall. The pivoting adjustment structure is one or more slots arranged on one of the side wall of the annular groove and the annular wall, and one or more protrusions arranged on the other of the side wall of the annular groove and the annular wall. The canopy mounting structure according to claim 77, wherein the one or more slots selectively engage with the one or more protrusions.

79. The annular wall is arranged on a locking ring detachably connected to the connecting sheet. The locking ring is connected to the connecting sheet without relative rotation therebetween. The canopy mounting structure according to claim 78.

80. The rocking limit structure is a first arc-shaped block arranged on one of the connecting sheet and the pivoting sheet, and a second arc-shaped block arranged on the other of the connecting sheet and the pivoting sheet. The canopy mounting structure according to claim 77, wherein when the auxiliary canopy frame rotates relative to the main canopy frame, the first arc-shaped block selectively abuts against the second arc-shaped block.

81. A child carrier comprising a carrier and a canopy, wherein the canopy is attached to the carrier via the canopy mounting structure according to claim 67.

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