Child carrier

Abstract

Disclosed is a child carrier, comprising a frame, a seat assembly, and a locking mechanism. The frame comprises: front feet; rear feet; a hand grip which is pivotally connected to a same pivot point together with the front feet and the rear feet; and a supporting member comprising a first supporting frame and a second supporting frame which are pivotally connected to each other, the end of the first supporting frame away from the second supporting frame being pivotally connected to the hand grip, and the end of the second supporting frame away from the first supporting frame being pivotally connected to the rear feet. The locking mechanism comprises a locking member which is slidably arranged on the first supporting frame and can switch between a locking position and an unlocking position. The locking member has locking ends, and locking holes are provided in the rear feet. When the locking member is located at the locking position, the locking ends are adapted to be fitted to the locking holes by means of insertion. When the locking member is located at the unlocking position, the locking ends are separated from the locking holes.

Description

Child carrier

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 2024104074756 filed on April 3, 2024, Chinese patent application No. 2024111172081 filed on August 14, 2024, Chinese patent application No. 2024111353091 filed on August 16, 2024, Chinese patent application No. 202411495939X filed on October 24, 2024, and Chinese patent application No. 202510168394X filed on February 14, 2025, the full text of these Chinese patent applications are hereby incorporated by reference. Technical Field

[0003] The present invention relates to a child carrier, and in particular to a child carrier with a reversing function. Background Art

[0004] To accommodate various usage requirements, child carriers, such as strollers, have a reversing function. These child carriers can switch between a forward-facing mode, in which the child faces the front of the carrier, and a rear-facing mode, in which the child faces the rear. The reversing function of a child carrier can be achieved by directly adjusting the direction of the handlebars (also known as the push handles), thereby ensuring that the child is not disturbed.

[0005] For child carriers that achieve a reversing function by turning the rider, there are already child carriers in which the seat moves relative to the frame as the rider turns. Such child carriers may have a backrest with an adjustable tilt angle, for example, by adjusting the length of the backrest strap to adjust the backrest's tilt angle. A common structure for adjusting the backrest's tilt angle is that the bottom of the backrest is pivotally connected to the seat, and the middle and upper parts of the backrest are movably connected to the frame via backrest straps fixed to the frame at both ends. However, because the seat moves relative to the frame during the rider's forward and backward steering process, the bottom of the backrest moves with the frame, forcing the backrest's tilt angle to change. This change in the backrest's tilt angle is undesirable and will affect the user experience.

[0006] Furthermore, for conventional child carriers with a reversing function, when in forward-facing mode, the child's center of gravity is typically closer to the rear wheel in the current direction of travel. However, when the child is in rear-facing mode after the reversal, the rear wheel becomes the front wheel. At this point, because the position of the child's seat relative to the frame remains unchanged, the child's center of gravity is closer to the front wheel in the current direction of travel (i.e., the rear wheel in forward-facing mode). In this situation, pushing the child carrier in rear-facing mode becomes more laborious, especially when going uphill or up stairs. Summary of the Invention

[0007] An object of the present invention is to provide an improved children's carrier with a reversing function.

[0008] A first aspect of the present invention provides a child carrier. The child carrier includes a frame, a seat assembly, a backrest assembly, a rider, and a linkage mechanism. The seat assembly is mounted on the frame and is configured to be movable relative to the frame in the longitudinal direction of the frame. The backrest assembly includes a pivot connection with the seat assembly. The rider is pivotally connected to the frame. The linkage mechanism is disposed on one side of the seat assembly and is connected to the backrest assembly and the seat assembly, respectively. When the rider pivots relative to the frame, the rider drives the seat assembly to move relative to the frame in the longitudinal direction of the frame, and the seat assembly drives the backrest assembly to move synchronously with the seat assembly in the longitudinal direction of the frame through the linkage mechanism, so that the angle of the backrest assembly relative to the seat assembly remains unchanged.

[0009] In the first aspect, the backrest assembly includes a backrest tube and a backrest strap, wherein the backrest tube is supported by the backrest strap. The linkage mechanism includes a linkage rod, wherein a first end of the linkage rod is connected to the seat assembly, and a second end of the linkage rod is connected to the armrest of the vehicle frame and is connected to the end of the backrest strap.

[0010] In the first aspect, the linkage mechanism further comprises a fixing plate connected to the second end of the linkage rod via a sliding pin so that the fixing plate moves together with the second end of the linkage rod.

[0011] The second aspect of the present invention provides a child carrier. The child carrier includes a frame, a seat assembly and a locking mechanism. The frame includes front legs, rear legs, armrests and a support member. The armrests are pivotally connected to the front legs and rear legs at the same pivot point. The support member includes a first support frame and a second support frame pivotally connected to each other, the end of the first support frame away from the second support frame is pivotally connected to the armrest, and the end of the second support frame away from the first support frame is pivotally connected to the rear legs. The locking mechanism includes a locking member. The locking member is slidably arranged on the first support frame and can be switched between a locked position and a released position. The locking member has a locking end, and a locking hole is provided on the rear leg. When the locking member is in the locked position, the locking end is suitable for being inserted into and matched with the locking hole; when the locking member is in the released position, the locking end is disengaged from the locking hole.

[0012] In the second aspect, the locking mechanism further comprises a fixing seat, which is arranged on the rear leg, wherein the locking hole is arranged on the fixing seat.

[0013] In the second aspect, the locking member further comprises a locking end, and the second support frame is provided with an extended locking slot. When the vehicle frame is in the extended state and the locking member is in the locked position, the locking end is adapted to engage with the extended locking slot to restrict the vehicle frame from being retracted. When the locking member is in the unlocked position, the vehicle frame is allowed to switch between the extended and retracted states.

[0014] In the second aspect, the locking member further comprises a locking end, the second support frame is provided with a folding locking slot, and the folding locking slot and the unfolding locking slot are respectively provided on either side of the pivot axis connecting the first support frame and the second support frame. When the frame is in the folded state and the locking member is in the locked position, the locking end is adapted to engage with the folding locking slot to restrict the frame from unfolding.

[0015] In the second aspect, the locking member is provided with a pushing portion, which is adapted to be pushed by the unlocking mechanism to drive the locking member to move toward the unlocking position.

[0016] In the second aspect, the child carrier further includes a rider, the rider pivotally connected to the support member. The release mechanism includes a driving member and an operating member. The driving member is movably mounted on the rider and is adapted to push against the pushing portion to drive the locking member to a released position. The operating member is mounted on the rider and connected to the driving member, and the operating member is operable to drive the driving member to move.

[0017] In the second aspect described above, the child carrier further includes a rider, a backrest assembly, and a linkage mechanism. The rider is pivotally connected to the vehicle frame. The backrest assembly includes a backrest tube and a backrest strap. The backrest tube is supported by the backrest strap and pivotally connected to the seat assembly. The linkage mechanism is disposed on one side of the seat assembly and is connected to the ends of the backrest strap and the seat assembly, respectively. When the rider pivots relative to the vehicle frame, the rider drives the seat assembly to move longitudinally relative to the frame. The seat assembly, via the linkage mechanism, drives the ends of the backrest strap to move synchronously with the seat assembly along the longitudinal direction of the frame.

[0018] A third aspect of the present invention provides a child carrier, comprising: a vehicle frame; a seat assembly mounted on the vehicle frame; a backrest assembly pivotally connected to the seat assembly; a headrest pivotally connected to the backrest assembly; and a driving member connected to the vehicle frame and configured to drive the headrest so that the angle of the headrest relative to the backrest assembly changes when the angle of the backrest assembly relative to the seat assembly changes.

[0019] In the third aspect described above, the child carrier further comprises: a linkage mechanism, which is arranged on one side of the seat assembly and is connected to the backrest assembly and the seat assembly respectively. The seat assembly is constructed to be movable relative to the frame along the longitudinal direction of the frame. When the rider pivots relative to the frame, the rider drives the seat assembly to move relative to the frame along the longitudinal direction of the frame, and the seat assembly drives the backrest assembly to move synchronously with the seat assembly along the longitudinal direction of the frame through the linkage mechanism, so that the angle of the backrest assembly relative to the seat assembly remains unchanged. The connecting section of the driving member connected to the frame moves synchronously with the seat assembly along the longitudinal direction of the frame.

[0020] In the third aspect, the backrest assembly is configured to pivot relative to the seat assembly to enable the child carrier to switch between a sitting position and a lying-flat position. When the child carrier is in the sitting position, the backrest assembly is in an upright position, and the headrest is parallel to the backrest assembly. When the child carrier is in the lying-flat position, the backrest assembly is in a horizontal position, and the headrest is perpendicular to the backrest assembly.

[0021] In the above third aspect, the backrest assembly includes a backrest tube, and the bottom portion of the headrest panel is pivotally connected to a top section of the backrest tube.

[0022] In the third aspect, the headrest plate is pivotable relative to the backrest assembly within an angle range of about 90° to about 180° with respect to the backrest assembly.

[0023] In the third aspect, a headrest elastic member is provided between the headrest and the backrest assembly, and the headrest elastic member is adapted to bias the headrest so that the headrest remains parallel to the seat assembly.

[0024] In the third aspect, the headrest elastic member is in the form of a double torsion spring, having two spring portions and a U-shaped abutment portion, the two spring portions being located at either end of the U-shaped abutment portion. The two spring portions are wound around the top section of the backrest tube, and the U-shaped abutment portion abuts the headrest and is adapted to apply an elastic restoring force to the headrest to maintain the headrest parallel to the seat assembly.

[0025] In the third aspect, the driving member includes a headrest strap, wherein a top portion of the headrest panel is connected to the vehicle frame via the headrest strap, and the headrest strap has a constant length in a section between the headrest panel and the vehicle frame. The headrest strap is adapted to pull the headrest panel to pivot relative to the backrest assembly during pivoting of the backrest assembly relative to the seat assembly to switch the child carrier from the sitting position to the lying position.

[0026] In the third aspect, the driving member includes a backrest belt, and the backrest belt is suitable for supporting the backrest tube thereon.

[0027] In the third aspect, the linkage mechanism includes a linkage rod, a first end of which is connected to the seat assembly, and a second end of which is connected to the armrest of the vehicle frame and to the connecting section of the driving member.

[0028] In the above-mentioned third aspect, the linkage mechanism also includes a fixing plate, which is connected to the second end of the linkage rod through a sliding pin so that the fixing plate moves together with the second end of the linkage rod, and the connecting section of the driving member is connected to the fixing plate.

[0029] In the third aspect, the child carrier further comprises a belt adjusting device, the backrest belt passes through the belt adjusting device and extends to the connecting section, and the belt adjusting device is configured to adjust the length of the backrest belt between the fixing plate and the belt adjusting device.

[0030] A fourth aspect of the present invention provides a child carrier, comprising: a frame; a seat assembly mounted on the frame; a backrest assembly pivotally connected to the seat assembly, the backrest assembly being pivotable relative to the seat assembly between an upright position and a horizontal position; a backrest strap adapted to support the backrest assembly thereon and configured to adjust the inclination angle of the backrest assembly, the backrest strap having an effective backrest support length, wherein the longer the effective backrest support length, the greater the inclination angle of the backrest assembly; and a strap adjustment device configured to adjust the effective backrest support length of the backrest strap. When the backrest assembly is in the upright position, the effective backrest support length is shortest, and when the backrest assembly is in the horizontal position, the effective backrest support length is longest. The strap adjustment device is configured to automatically shorten the effective backrest support length when the backrest assembly is in the horizontal position or any position deviating from the upright position toward the horizontal position, thereby returning the backrest assembly to the upright position.

[0031] According to a fifth aspect of the present invention, a child carrier is provided, comprising: a frame; a seat movable relative to the frame between a first position and a second position; and a front armrest movably connected to the frame. The front armrest is configured to be adjustable such that a distance between the front armrest and the seat can be selectively increased or decreased when the seat is moved to the first position or the second position.

[0032] In a fifth aspect of the present invention, the front armrest is pivotally or telescopically connected to the frame so that the distance of the front armrest relative to the backrest of the seat is adjustable; when the seat is in the first position, the front armrest is adapted to be adjusted to have a first distance relative to the backrest, and when the seat is in the second position, the front armrest is adapted to be adjusted to have a second distance relative to the backrest that is greater than the first distance.

[0033] In the fifth aspect of the present invention, when the front armrest is pivotally connected to the frame, the child carrier further includes an angle adjustment device, the angle adjustment device including: a fixed seat fixed to the frame; a rotating seat, one end of the rotating seat is rotatably connected to the fixed seat relative to the fixed seat, and the other end of the rotating seat is connected to the front armrest; and an angle positioning member, which is slidably arranged between the fixed seat and the rotating seat relative to the rotating seat, and is constructed to be movable between a locked position and a released position, when the angle positioning member is in the locked position, the rotation of the rotating seat relative to the fixed seat is restricted, and when the angle positioning member is in the released position, the rotation of the rotating seat relative to the fixed seat is allowed.

[0034] In a fifth aspect of the present invention, when the front armrest is telescopically connected to the frame, the child carrier further comprises: a connecting sleeve having a first end and a second end opposite in the axial direction, the first end of the connecting sleeve being fixedly connected to the frame, wherein the end of the front armrest has an extension portion, the extension portion being slidably inserted into the second end of the connecting sleeve, so that the end of the front armrest is telescopic relative to the connecting sleeve.

[0035] In a fifth aspect of the present invention, the child carrier further comprises a movable bracket movably disposed on the frame and having the seat mounted thereon. The movable bracket is adapted to selectively move forward or rearward relative to the frame in a longitudinal direction of the child carrier to move the seat between the first position and the second position.

[0036] In a fifth aspect of the present invention, the frame includes side armrests. The child carrier further includes: a rider pivotally mounted on the frame; and a movable bracket movably mounted on the frame and having the seat mounted thereon. The rider is connected to the movable bracket at the side armrests, and when the rider rotates relative to the frame, the rider is adapted to drive the movable bracket to move relative to the frame in a longitudinal direction of the child carrier.

[0037] According to a sixth aspect of the present invention, a child carrier is provided, comprising: a frame; a rider mounted on the frame; a movable support movably mounted on the frame; and a seat mounted on the movable support. The movable support is configured to be adjustable so as to selectively move forward or backward relative to the frame in a longitudinal direction of the child carrier independently of movement of the rider.

[0038] In a sixth aspect of the present invention, the child carrier further includes a movement adjustment device, the movement adjustment device including: a locking member configured to be movable between a locking position and a release position, wherein when the locking member is in the locking position, the movement of the movable bracket relative to the frame is restricted, and when the locking member is in the release position, the movement of the movable bracket relative to the frame is permitted.

[0039] In a sixth aspect of the present invention, the frame includes a support rod extending in the longitudinal direction of the child carrier. The movable bracket includes a sleeve slidably mounted on the support rod, and a movable bracket body fixed to the sleeve and adapted to mount the seat. The locking member is movably mounted on the sleeve. When the locking member is moved to the locked position, the sliding sleeve is restricted from sliding relative to the support rod. When the locking member is moved to the unlocked position, the sliding sleeve is permitted to slide relative to the support rod.

[0040] According to a seventh aspect of the present invention, a child carrier is provided, comprising: a frame including side armrests; a rider pivotally mounted on the frame; a movable support movably mounted on the frame; a seat mounted on the movable support; and a slider connected to the movable support and slidably mounted on the side armrests. When the rider rotates relative to the frame to cause the slider to slide relative to the side armrests, the slider is adapted to drive the movable support to move relative to the frame in a longitudinal direction of the child carrier.

[0041] In the seventh aspect of the present invention, a guide groove is provided on the side armrest, and the sliding member passes through the guide groove and is capable of sliding along the guide groove. The rider is provided with a driving member, and the driving member is configured to drive the sliding member to slide along the guide groove relative to the side armrest when the rider rotates relative to the frame. The sliding member has a first end and a second end opposite to each other, the first end of the sliding member is connected to the driving member, and the second end of the sliding member is connected to the movable bracket via a transmission member. One end of the transmission member is pivotally connected to the second end of the sliding member, and the other end of the transmission member is hinged to the movable bracket.

[0042] The present invention also provides a child carrier that can change the center of gravity when the driver changes direction, so that the driver can push the child carrier more effortlessly after changing direction.

[0043] An eighth aspect of the present invention provides a child carrier comprising: a frame; a rider pivotally mounted on the frame; a movable support slidably mounted on the frame; an armrest fixed to the movable support; and a seat panel fixed to the movable support. The rider is configured to drive the movable support to slide relative to the frame in a longitudinal direction of the child carrier when the rider rotates relative to the frame to switch the child carrier between a forward-facing mode and a rearward-facing mode.

[0044] In the eighth aspect described above, the seat plate is detachably mounted to the movable bracket.

[0045] In the eighth aspect, the child carrier further includes at least one of the following: a leg support pivotally connected to the movable frame or the seat pan for supporting the legs of a child placed in the child carrier; and a backrest support pivotally connected to the movable frame or the seat pan for supporting a backrest board or seat fabric to form a backrest. The backrest support may optionally be provided with a canopy support.

[0046] In the eighth aspect mentioned above, the movable bracket includes: a movable bracket body; an armrest mounting seat fixed to the movable bracket body, and the armrest mounting seat is suitable for mounting the armrest.

[0047] In the eighth aspect, the movable bracket includes: a movable bracket body; and a sliding sleeve fixed to the movable bracket body, and the seat plate is detachably mounted on the sliding sleeve.

[0048] In the eighth aspect, the seat plate is detachably mounted on the sliding sleeve by snapping.

[0049] In the eighth aspect, when the rider rotates relative to the frame to convert the child carrier from the forward-facing mode to the rearward-facing mode, the rider drives the movable support to move forward relative to the frame along the longitudinal direction of the child carrier.

[0050] In the eighth aspect, the child carrier includes two movable brackets, and an elastic support member is provided between the two movable brackets. When the seat plate is fixed to the movable brackets, the elastic support member is suitable for supporting the seat plate.

[0051] In the eighth aspect, the bicycle frame includes a support rod, the rider includes a push rod, and the push rod is pivotally connected to the support rod. The sliding sleeve is slidably mounted on the support rod.

[0052] In the eighth aspect above, the movable bracket body, the sliding sleeve and the armrest mounting seat are integrally formed.

[0053] In the eighth aspect, the push rod is pivotally connected to the support rod via a drive pin, the drive pin having opposing first and second ends. The first end of the drive pin is fixedly connected to the lower end of the push rod of the rider, and the second end of the drive pin passes through the support rod and is fixedly connected to a gear. The movable bracket is provided with a rack fixed relative to the movable bracket, the rack extending along the longitudinal direction of the child carrier and meshing with the gear. When the gear rotates, the teeth of the gear push the rack along the longitudinal direction of the child carrier.

[0054] In the eighth aspect, the first end of the driving pin is fixed to the push rod of the rider via a positioning pin.

[0055] In the eighth aspect, the child carrier further includes: a transmission member, one end of which is fixed to the movable support body; a driving member, which is hinged to the other end of the transmission member; a pivot shaft, which passes through the support rod, and the push rod and the driving member are rotatably connected to the pivot shaft on opposite sides of the support rod; and a push rod sleeve, which is fixed to the lower end of the push rod. The push rod sleeve is fixedly connected to the driving member so that when the push rod rotates, the driving member rotates synchronously. The driving member is configured to drive the transmission member to move when the driving member rotates. The transmission member is configured to drive the movable support to slide along the support rod under the drive of the driving member.

[0056] In the eighth aspect, the push rod sleeve has an extension. The driving member has an L-shaped driving member body, which includes a first portion and a second portion at a predetermined angle relative to the first portion. The driving member is rotatably connected to the pivot shaft at the connection between the first portion and the second portion. The end of the first portion remote from the connection is hinged to the other end of the transmission member. A transverse connecting portion is provided between the distal end of the extension and the end of the second portion remote from the connection.

[0057] In the eighth aspect, the transverse connecting portion extends from the second portion toward the extending portion and is fixedly connected to the extending portion; or the transverse connecting portion extends from the extending portion toward the second portion and is fixedly connected to the second portion.

[0058] In the eighth aspect above, the push rod sleeve, the driving member and the transverse connecting portion are integrally formed.

[0059] In the eighth aspect, the vehicle frame includes two support rods, each of which is slidably provided with the movable bracket. The rider includes two push rods, each of which is fixedly provided with the push rod sleeve. Each push rod sleeve is fixedly connected to a corresponding driving member via a transverse connecting portion. The child carrier further includes a connecting rod, the opposite ends of which are respectively connected to the push rod sleeves of the two push rods, thereby securing the push rod sleeves of the two push rods relative to each other.

[0060] A ninth aspect of the present invention provides a child carrier, comprising: a frame; a rider pivotally mounted on the frame; a movable bracket slidably mounted on the frame; a seat fixed to the movable bracket; a drive member transmission-connected to the movable bracket; and a push rod sleeve fixed to the lower end of the rider. The push rod sleeve is fixedly connected to the drive member so that when the rider rotates relative to the frame, the drive member rotates synchronously. The drive member is configured to drive the movable bracket to slide relative to the frame along the longitudinal direction of the child carrier when the drive member rotates.

[0061] In the above-mentioned ninth aspect, the seat plate is detachably mounted to the movable bracket.

[0062] In the ninth aspect, the child carrier further includes an armrest, and the armrest is detachably mounted to the frame or the movable support.

[0063] In the ninth aspect, the child carrier further includes at least one of the following: a leg support pivotally connected to the movable frame or the seat pan for supporting the legs of a child placed in the child carrier; and a backrest support pivotally connected to the movable frame or the seat pan for supporting a backrest board or seat fabric to form a backrest. The backrest support may optionally be provided with a canopy support.

[0064] In the ninth aspect, the movable bracket includes: a movable bracket body; and a sliding sleeve fixed to the movable bracket body, and the seat plate is detachably mounted on the sliding sleeve.

[0065] In the ninth aspect, the child carrier further includes a transmission member connected between the drive member and the movable bracket. The push rod sleeve has an extension. The drive member includes a first portion and a second portion that are arranged at a predetermined angle relative to each other. An end of the first portion remote from the second portion is hingedly connected to the transmission member. The extension is connected to an end of the second portion remote from the first portion via a transverse connection.

[0066] In the ninth aspect mentioned above, the push rod sleeves are fixedly provided at both ends of the rider; each push rod sleeve is fixedly connected to a corresponding driving member through a transverse connecting portion; the child carrier also includes a connecting rod, and the opposite ends of the connecting rod are respectively connected to the push rod sleeves located at both ends of the rider.

[0067] In the ninth aspect, the frame includes a support rod, the rider includes a push rod, and the push rod sleeve is fixed to the lower end of the push rod. The child carrier also includes a pivot shaft that passes through the support rod, and the push rod and the driving member are rotatably connected to the pivot shaft on opposite sides of the support rod.

[0068] In the ninth aspect, the transmission member is configured to drive the movable bracket to slide along the support rod under the drive of the driving member.

[0069] In the ninth aspect, the child carrier includes two movable brackets, and an elastic support member is provided between the two movable brackets. When the seat plate is fixed to the movable brackets, the elastic support member is suitable for supporting the seat plate.

[0070] In the ninth aspect, the sliding sleeve is slidably mounted on the support rod.

[0071] In the ninth aspect, the seat plate is detachably mounted on the sliding sleeve by snapping.

[0072] In the ninth aspect, the movable bracket further comprises an armrest mounting seat, the armrest mounting seat is fixed to the movable bracket body, and the armrest mounting seat is suitable for mounting an armrest.

[0073] In the ninth aspect, the first and second portions of the driving member form a generally L-shaped structure. The driving member is rotatably connected to the pivot shaft at the connection between the first and second portions. An end of the first portion remote from the connection is hingedly connected to the other end of the transmission member. A transverse connecting portion is provided between the distal end of the extension and the end of the second portion remote from the connection.

[0074] In the ninth aspect, the transverse connecting portion extends from the second portion toward the extension portion and is fixedly connected to the extension portion; or the transverse connecting portion extends from the extension portion toward the second portion and is fixedly connected to the second portion.

[0075] In the ninth aspect, the push rod sleeve, the driving member and the transverse connecting portion are integrally formed.

[0076] In the ninth aspect, the frame includes two support rods, each of which is slidably provided with the movable bracket. The rider includes two push rods, each of which is fixedly provided with the push rod sleeve. Each push rod sleeve is fixedly connected to a corresponding driving member via a transverse connecting portion. Opposite ends of the connecting rod are respectively connected to the push rod sleeves of the two push rods, so that the push rod sleeves of the two push rods are relatively fixed.

[0077] A tenth aspect of the present invention provides a child carrier, comprising: a frame; a rider pivotally connected to the frame, the rider being connected to a gear; a movable bracket slidably disposed on the frame; and a seat plate fixed to the movable bracket. The movable bracket is provided with a rack fixed relative to the movable bracket, the rack extending in the longitudinal direction of the child carrier and meshing with the gear. When the gear rotates, the teeth of the gear push the rack to move in the longitudinal direction of the child carrier.

[0078] In the above tenth aspect, the seat plate is detachably mounted to the movable bracket.

[0079] In the tenth aspect, the child carrier further includes an armrest, and the armrest is detachably mounted to the frame or the movable support.

[0080] In the tenth aspect, the child carrier further includes at least one of the following: a leg support pivotally connected to the movable frame or the seat pan for supporting the legs of a child placed in the child carrier; and a backrest support pivotally connected to the movable frame or the seat pan for supporting a backrest board or seat fabric to form a backrest. The backrest support may optionally be provided with a canopy support.

[0081] In the tenth aspect, the movable bracket includes: a movable bracket body; and a sliding sleeve fixed to the movable bracket body, and the seat plate is detachably mounted on the sliding sleeve.

[0082] In the tenth aspect, the frame includes a support rod, the rider includes a push rod, and the push rod is pivotally connected to the support rod via the drive pin. The first end of the drive pin is fixedly connected to the lower end of the push rod of the rider, and the second end of the drive pin passes through the support rod and is fixedly connected to a gear.

[0083] In the tenth aspect, the child carrier includes two movable brackets, and an elastic support member is provided between the two movable brackets. When the seat plate is fixed to the movable brackets, the elastic support member is suitable for supporting the seat plate.

[0084] In the tenth aspect, the sliding sleeve is slidably mounted on the support rod.

[0085] In the tenth aspect, the seat plate is detachably mounted on the sliding sleeve by snapping.

[0086] In the tenth aspect, the movable bracket further includes an armrest mounting seat, the armrest mounting seat is fixed to the movable bracket body, and the armrest mounting seat is suitable for mounting an armrest.

[0087] In the tenth aspect described above, the movable bracket body, the sliding sleeve and the armrest mounting seat are integrally formed.

[0088] In the tenth aspect, the first end of the driving pin is fixed to the push rod of the rider via a positioning pin.

[0089] According to an eleventh aspect of the present invention, there is provided a child carrier comprising: a frame; a rider pivotally connected to the frame; a movable bracket slidably disposed on the frame; a seat panel fixed to the movable bracket; and a push member having one end connected to the rider and the other end rotatably connected to the movable bracket. The push member is configured to drive the movable bracket to slide relative to the frame in the longitudinal direction of the child carrier when the rider rotates relative to the frame to switch the child carrier between a forward-facing mode and a rearward-facing mode.

[0090] In the above eleventh aspect, the movable bracket is provided with a fitting hole, and the other end of the pusher is rotatably connected to the fitting hole. In the above eleventh aspect, the seat plate is detachably mounted to the movable bracket.

[0091] In the above eleventh aspect, the child carrier further includes an armrest, and the armrest is detachably mounted to the frame or the movable support.

[0092] In the eleventh aspect, the child carrier further includes at least one of the following: a leg support pivotally connected to the movable frame or the seat pan for supporting the legs of a child placed in the child carrier; and a backrest support pivotally connected to the movable frame or the seat pan for supporting a backrest board or seat fabric to form a backrest. The backrest support may optionally be provided with a canopy support.

[0093] In the above eleventh aspect, the movable bracket includes: a movable bracket body; and a sliding sleeve fixed to the movable bracket body, and the seat plate is detachably mounted on the sliding sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0094] The features and advantages of the present invention will be better understood through the following detailed description of exemplary embodiments utilizing the principles of the present invention with reference to the following drawings:

[0095] FIG1 shows a child carrier according to a first embodiment of the present invention, wherein the child carrier is in a forward-facing mode;

[0096] FIG2 shows a child carrier according to a first embodiment of the present invention, wherein the child carrier is in a rear-facing mode;

[0097] FIG3 is a schematic structural diagram of the child carrier in FIG1 with the front legs and rear legs removed;

[0098] FIG4 is a partial exploded schematic diagram of the child carrier according to the first embodiment of the present invention with the front legs and rear legs removed;

[0099] FIG5 is a partial enlarged view of FIG4;

[0100] FIG6 is a partial exploded schematic diagram of the child carrier according to the first embodiment of the present invention, shown from another perspective, with the front legs and rear legs removed;

[0101] FIG7 is a partial enlarged view of FIG6;

[0102] FIG8 shows a child carrier according to a second embodiment of the present invention, wherein the child carrier is in a forward-facing mode;

[0103] FIG9 is a partial side sectional view of the child carrier in FIG8 ;

[0104] FIG10 is a partial enlarged view of FIG9;

[0105] FIG11 is a schematic diagram showing the structure of the cable after removing some internal details from FIG10 ;

[0106] FIG12 is a side view of a mounting seat of a child carrier according to a second embodiment of the present invention when installed in an armrest;

[0107] FIG. 13 is a schematic structural diagram of a mounting seat of a child carrier and components mounted therein according to a second embodiment of the present invention.

[0108] FIG14 is an exploded schematic diagram of a mounting base of a child carrier and components mounted therein according to a second embodiment of the present invention;

[0109] FIG15 is an exploded schematic diagram of the mounting base of the child carrier and the components mounted therein according to the second embodiment of the present invention from another perspective;

[0110] FIG16 shows a child carrier according to a third embodiment of the present invention, wherein the child carrier is in a forward-facing mode;

[0111] FIG17 is a partial enlarged view of FIG16;

[0112] FIG18 shows a child carrier according to a fourth embodiment of the present invention, wherein the child carrier is in a rear-facing mode;

[0113] FIG19 is a side view of the child carrier in FIG18 in a folded state;

[0114] FIG20 is a side view of the child carrier in FIG18;

[0115] FIG21 is a cross-sectional view of the child carrier in FIG18;

[0116] FIG22 shows the side frame of the child carrier in FIG18 and the components mounted thereon;

[0117] FIG23 is an exploded schematic diagram of the side frame in FIG22 and the components mounted thereon;

[0118] FIG24 is a partial view of a cross-sectional view of the child carrier in FIG18 taken along line U1-U1;

[0119] FIG25 shows a partial structure of the child carrier in FIG18 in a folded state;

[0120] FIG26 shows a child carrier according to a fifth embodiment of the present invention, wherein the child carrier is in a sitting position;

[0121] FIG27 is a schematic structural diagram of the children's carrier shown in FIG26 from another perspective;

[0122] FIG28 shows a child carrier according to a fifth embodiment of the present invention, wherein the child carrier is in a lying-flat state;

[0123] FIG29 is a side view of the child carrier shown in FIG28;

[0124] FIG30 is a schematic structural diagram of the child carrier shown in FIG28 from another perspective;

[0125] FIG31 shows a strap adjustment device according to a sixth embodiment of the present invention;

[0126] 32A and 32B are exploded views of the strap adjustment device shown in FIG. 31 at two different viewing angles;

[0127] 33A and 33B are schematic diagrams of the reel shown in FIG32 at two different viewing angles;

[0128] 34A and 34B are schematic diagrams of the auxiliary disk shown in FIG32 at two different viewing angles;

[0129] FIG35 is a schematic diagram of the internal structure of the strap adjustment device shown in FIG31 at a different viewing angle;

[0130] FIG36 is a schematic diagram of the internal structure of the strap adjustment device shown in FIG31 from another perspective;

[0131] FIG37 is a schematic diagram of the locking member of the strap adjustment device shown in FIG31 in the locked position;

[0132] FIG38 is a schematic diagram of the locking member of the strap adjustment device shown in FIG31 in the unlocked position;

[0133] FIG39 shows a child carrier according to a seventh embodiment of the present invention, wherein the child carrier is in a forward-facing mode;

[0134] FIG40 shows a child carrier according to a seventh embodiment of the present invention, wherein the child carrier is in a rear-facing mode;

[0135] FIG41 shows the child carrier of FIG40 , wherein the angle of the front armrest relative to the backrest is adjusted;

[0136] FIG42 is a schematic diagram of the child carrier shown in FIG41 from another perspective;

[0137] FIG43 shows a partial structure of a child carrier according to a seventh embodiment of the present invention;

[0138] FIG44 is a partial structural exploded view of an angle adjustment device according to a seventh embodiment of the present invention;

[0139] FIG45 shows the internal structure of the angle adjustment device according to the seventh embodiment of the present invention, wherein the front armrest is in the first angular position;

[0140] FIG46 shows the internal structure of the angle adjustment device according to the seventh embodiment of the present invention, wherein the front armrest is in the second angular position;

[0141] FIG47 shows a child carrier according to an eighth embodiment of the present invention, wherein the front armrest is in a first length position;

[0142] FIG48 is an enlarged view of area H in FIG47;

[0143] FIG49 is a schematic diagram of the front armrest in FIG48 in a second length position;

[0144] FIG50 is a schematic structural diagram of a front armrest and a connecting sleeve according to an eighth embodiment of the present invention;

[0145] FIG51 is a perspective view of a child carrier according to an eighth embodiment of the present invention;

[0146] FIG52 shows a partial structure of a child carrier according to an eighth embodiment of the present invention;

[0147] FIG53 is a partial structural exploded view of the local structure shown in FIG52;

[0148] FIG54 shows a partial structure of a movement adjustment device according to an eighth embodiment of the present invention, wherein the locking member is in a locked position;

[0149] FIG55 shows a partial structure of a movement adjustment device according to an eighth embodiment of the present invention, wherein the locking member is in a released position;

[0150] FIG56 is a cross-sectional view of a partial structure of a child carrier according to an eighth embodiment of the present invention, wherein the locking member is in a locked position;

[0151] FIG57 is a cross-sectional view of a partial structure of a child carrier according to an eighth embodiment of the present invention, wherein the locking member is in a released position;

[0152] FIG58 shows a child carrier according to a ninth embodiment of the present invention, wherein the child carrier is in a forward-facing mode;

[0153] FIG59 shows a child carrier according to a ninth embodiment of the present invention, wherein the child carrier is in a rear-facing mode;

[0154] FIG60 is a schematic diagram showing the structure of a child carrier according to a ninth embodiment of the present invention from a rearward perspective, wherein the child carrier is in a forward-facing mode;

[0155] FIG61 is a schematic structural diagram of a child carrier according to a ninth embodiment of the present invention from a rearward perspective, wherein the child carrier is in a rearward-facing mode;

[0156] FIG62 is an enlarged view of area I in FIG58;

[0157] FIG63 is an enlarged view of area J in FIG59;

[0158] FIG64 is a schematic diagram showing the structure of a child carrier according to a ninth embodiment of the present invention from a forward perspective, wherein the child carrier is in a rearward-facing mode;

[0159] FIG65 is an enlarged view of area K in FIG64;

[0160] FIG66 is an enlarged view of area L in FIG64 ;

[0161] FIG67 is a schematic diagram of a partial structure of the child carrier shown in FIG64 ;

[0162] FIG68 is a schematic diagram of the partial structure shown in FIG67 from another perspective;

[0163] FIG69 shows a child carrier according to a tenth embodiment of the present invention, wherein the child carrier is in a forward-facing mode;

[0164] FIG70 shows a child carrier according to a tenth embodiment of the present invention, wherein the child carrier is in a rear-facing mode;

[0165] FIG71 is a schematic diagram of the structure of a child carrier according to the tenth embodiment of the present invention from a rearward perspective, wherein the child carrier is in a forward-facing mode;

[0166] FIG72 is an enlarged view of area M in FIG71 ;

[0167] FIG73 is a schematic diagram of the structure of a child carrier according to the tenth embodiment of the present invention from a forward perspective, wherein the child carrier is in a forward-facing mode;

[0168] FIG74 is an enlarged view of area N in FIG73 ;

[0169] FIG75 is a schematic structural diagram of the child carrier in FIG73 converted into a rear-facing mode, and illustrates partial structural details of the child carrier;

[0170] FIG76 is an exploded view of a partial structure of the child carrier in FIG71 ;

[0171] FIG77 shows a partial structure of a cross section taken along the U2-U2 direction in FIG69;

[0172] FIG78 shows a child carrier according to the eleventh embodiment of the present invention from a perspective, wherein the child carrier is in a forward-facing mode;

[0173] FIG79 shows the child carrier according to the eleventh embodiment of the present invention from another perspective, wherein the child carrier is in a forward-facing mode;

[0174] FIG80 is a schematic diagram of the structure of the child carrier in FIG78 converted into a rear-facing mode;

[0175] FIG81 is a schematic diagram of the structure of the child carrier in FIG79 converted into a rear-facing mode;

[0176] FIG82 is a schematic diagram of a partial structure of the child carrier in FIG78;

[0177] FIG83 shows a partial structure of a child carrier according to a twelfth embodiment of the present invention, wherein the child carrier is in a forward-facing mode;

[0178] FIG84 shows a partial structure of a child carrier according to a twelfth embodiment of the present invention, wherein the child carrier is in a rear-facing mode;

[0179] FIG85 shows a partial structure of a child carrier according to a thirteenth embodiment of the present invention, wherein the child carrier is in a forward-facing mode;

[0180] FIG86 shows a child carrier according to a fourteenth embodiment of the present invention;

[0181] 87 is a bottom view of the seat plate of a child carrier according to a fourteenth embodiment of the present invention;

[0182] FIG88 shows a child carrier according to a fifteenth embodiment of the present invention;

[0183] FIG89 shows a child carrier according to a sixteenth embodiment of the present invention, wherein the child carrier is in a forward-facing mode;

[0184] FIG90 is an enlarged view of area P in FIG89;

[0185] FIG91 shows a partial structure of a cross section taken along the U3-U3 direction in FIG90;

[0186] FIG92 is a schematic diagram of the structure shown in FIG89 after the backrest support member and the push member are removed;

[0187] FIG93 is a schematic diagram of a driving pin according to a sixteenth embodiment of the present invention;

[0188] FIG94 is an exploded view of a partial structure of a child carrier according to a sixteenth embodiment of the present invention;

[0189] FIG95 is a schematic diagram of the child carrier shown in FIG89 with the backrest support removed;

[0190] FIG96 is a schematic diagram of the child carrier shown in FIG95 after switching to a rear-facing mode;

[0191] FIG97 is an enlarged view of area Q in FIG95 ;

[0192] FIG98 is an enlarged view of area R in FIG96 .

[0193] Explanation of the accompanying reference numerals: 110, child carrier; 1100, frame; 1101, first slide groove; 1102, second slide groove; 1110, lateral frame; 1111, front leg; 1112, rear leg; 1113, armrest; 11131, receiving groove; 1114, support member; 1114a, first support frame; 1114b, second support frame; 11141, sliding groove; 11142, locking groove; 11142a, unfolded locking groove; 11142b, folded locking groove; 11143, guide groove; 11144, through-hole; 11145, receiving groove; 1115, reinforcement rod; 1120, seat tube 1180, release mechanism; 1181, operating member; 1182, driving member; 11821, driving portion; 1190, locking mechanism; 1191, locking member; 11911, locking portion; 11912, locking end; 11913, pushing portion; 1192, locking reset member; 1193, fixing seat; 11931, locking hole; 11914, locking portion; 11915, locking end; 1200, seat assembly; 1210, movable bracket; 1211, tubular portion; 1212, second protrusion; 1213, recess; 1214, through-hole; 1215, rib; 1300, backrest assembly; 1310, backrest tube; 1311, top section; 1312, lateral section; 1320, driving member; 1321, first headrest strap; 1322, second headrest strap; 1323, backrest strap; 1330, side panel; 1331, guide groove; 1332, guide portion; 1333, strip-shaped hole; 1400, rider; 1401, grip; 1402, push rod; 1410, pin; 1500, linkage mechanism; 1510, linkage rod; 1512, first protrusion; 1519, sliding pin; 15192, flange; 1520, elastic member; 1530, transmission assembly; 1531, linkage gear; 1532, driven gear; 15321, first driven gear; 15321a, first gear portion; 15321b, second gear portion; 15322, second driven gear; 15323, third driven gear; 15323a, first gear portion; 15323b, second gear portion; 1533, output gear; 1540, sliding member; 1541, teeth; 1542, connecting portion; 1543, sliding member; 1544, through-hole; 1550, traction member; 1560, driving wheel; 1571, first through-hole; 1518, second through-hole; 1570, fixing plate; 1572, connecting hole; 1580, guide member; 1590, connecting member; 1600, transmission mechanism; 1610, first connecting rod; 1620, second connecting rod; 1700, mounting seat; 1701, first accommodating space; 1702, second accommodating space; 1710, housing; 1711, baffle; 1712, first limiting portion; 1713, second limiting portion; 1720, cover; 1721, step;1722, opening; 1800, headrest plate; 1810, headrest plate elastic member; 1811, U-shaped abutment portion; 1812, spring portion; 1820, mounting hole; 1900, strap adjustment device; 1910, first outer cover; 1911, guide hole; 1920, second outer cover; 1930, inner cover; 1931, fixing column; 1932, connecting portion; 1933, through hole; 1934, hole; 1940, reel; 1940A, first reel; 1940B, second reel; 1940C, intermediate connecting portion; 1941, winding groove; 1942, placement hole; 1943, card slot; 1944, ratchet; 1945, guide groove; 1945', guide groove 1950, spring; 1951, first end; 1952, second end; 1960, connector; 1970, auxiliary disk; 1971, body; 1972, first limiting plate; 1973, second limiting plate; 1974, limiting channel; 1980, elastic member; 1981, first end; 1982, second end; 1990, pawl; 1991, connecting side; 1992, free side; 1993, engaging portion; 1994, protrusion; 1901, handle; 1902, driving member; 210, frame; 2110, movable bracket; 2111, sliding sleeve; 21111, sliding channel; 21112, mounting seat; 211121, flange; 2112, movable bracket body; 2113, base; 2114, side frame; 2120, support rod; 2121, movable positioning hole; 2122, limiting slot; 2130, front armrest; 2131, extension; 21311, length positioning member; 21312, spring piece; 21313, length adjustment actuator; 2140, side armrest; 2141, guide slot; 2150, fixing block; 2200, angle adjustment device; 2210, fixed seat; 2211, angle positioning hole; 2220, rotating seat; 2221, positioning column; 2230, angle positioning member; 2231, driving column; 2240, first elastic member; 2250, angle adjustment actuator; 2251: positioning slot; 2252, driving inclined slot; 2300, connecting sleeve; 2310, first end portion; 2320, second end portion; 2321, length positioning hole; 2400, movable adjustment device; 2410, locking member; 2411, locking portion; 24111, snap joint; 2412, operating portion; 24121, receiving cavity; 24122, protrusion; 2420, second elastic member; 2430, limiting pin; 2440, guide member; 2441, slide groove; 2442, fastener; 2450, slider; 2460, third elastic member; 2510, sliding member; 2520, transmission member; 2600, rider; 2610, driving member; 2611, connecting portion; 2612, driving portion; 26121, sliding channel; 26122, first pushing portion; 26123, second pushing portion; 2700, seat;2710, backrest; 310, child carrier; 3100, frame; 3110, front leg; 3111, front wheel assembly; 3120, rear leg; 3121, rear wheel assembly; 3122, neutral bar; 3130, support bar; 3131, horizontal portion; 3140, drive pin; 3141, second locating pin hole; 3142, first end; 31421, flat portion; 3143, second end; 3144, pivot portion; 3150, gear; 3160, pivot shaft; 3170, transmission member; 3180, drive member; 3181, drive member body; 31811, first portion; 31812, second portion; 3182, first transverse connecting portion; 3190, fastener; 3200, driver; 3210, push rod; 3211, push rod housing; 3212, fixing member; 32121, drive pin hole; 32122, first positioning pin hole; 32123, clamping portion; 3213, positioning pin; 32131, positioning pin head; 3214, push rod plug; 3215, push rod sleeve; 32151, extension portion; 32152, second transverse connecting portion; 3216, connecting rod; 3220, grip; 3230, transverse connecting portion; 3300, movable bracket; 3310, movable bracket body; 3311, rack; 3312, mating hole; 3313, fixing pin; 3320, sliding sleeve; 3321, engaging groove; 3330, handrail mounting seat; 3340, push member; 3341, fixing hole; 3342, connecting hole; 3400, armrest; 3500, leg support; 3600, backrest support; 3700, roof support; 3710, first roof support rod; 3720, second roof support rod; 3800, elastic support member; 3900, seat plate; 3910, engaging projection; F, longitudinal direction; F1, first direction; F2, second direction; F3, first movement direction; F4, second movement direction; F5, third movement direction; X1, pivot axis; X2, axial direction; D1, winding direction; D2, unwinding direction; D3, rotation direction. DETAILED DESCRIPTION

[0194] In the following description, various aspects of the present invention will be described. For the purpose of explanation, specific details are set forth in order to provide a thorough understanding of the present invention. It will be clear to those skilled in the art that other embodiments of the present invention may differ in detail without affecting the essence thereof. Therefore, the present invention is not limited to what is shown in the drawings and described in the specification, but only as indicated in the appended claims, the proper scope of the present invention being determined solely by the broadest interpretation of the claims.

[0195] When a feature or element is referred to herein as being "on" another feature or element, it can be directly on the other feature or element, or there can be intervening features and / or elements. Conversely, when a feature or element is referred to as being "directly" on another feature or element, there are no intervening features or elements. It should also be understood that when a feature or element is referred to as being "connected," "attached," or "engaged" to another feature or element, it can be directly connected, attached, or engaged to the other feature or element, or there can be intervening features or elements. Conversely, when a feature or element is referred to as being "directly connected," "directly attached," or "directly engaged" to another feature or element, there are no intervening features or elements.

[0196] Spatially related terms, such as "under", "beneath", "above", "above", etc., are used in this document for ease of description, particularly for describing the positional relationship of one feature or element to another feature or element as shown in the figures. It should be understood that spatially related terms are intended to include different orientations of the device in use or at work in addition to the orientations shown in the figures. For example, if the device in the figures is inverted, the features or elements described in this document as being "under" other features or elements will be oriented as being "above" the other features or elements. Thus, the exemplary term "under" can include both above and below orientations. The device may also be oriented otherwise (rotated 90 degrees or in other directions), and the spatially related descriptions used in this document are interpreted accordingly. Similarly, unless otherwise specifically indicated, the terms "upward", "downward", "vertical", "horizontal", etc. used in this document are for illustrative purposes only.

[0197] Although the terms "first" and "second" may be used to describe various features or elements in this article, these features or elements should not be limited by these terms unless otherwise specifically indicated. These terms can be used to distinguish one feature or element from another feature or element. Therefore, the first feature or element discussed below can be referred to as the second feature or element, and similarly, the second feature or element discussed below can be referred to as the first feature or element. In this article, "plurality" refers to at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0198] As used herein, the term "longitudinal direction" refers to the longitudinal direction of a child carrier as viewed from the perspective of a child positioned in the child carrier, corresponding to the front-to-back direction of the child carrier. The term "transverse direction" refers to the transverse direction of a child carrier as viewed from the perspective of a child positioned in the child carrier, corresponding to the left-to-right direction of the child carrier. The term "forward travel direction" refers to the direction in which the child carrier moves when the child carrier is pushed forward in the longitudinal direction. The term "reverse travel direction" refers to the direction in which the child carrier moves when the child carrier is pulled backward in the longitudinal direction. The term "front" of a child carrier refers to the position of the child carrier facing the forward travel direction in forward-facing mode. The term "rear" of a child carrier refers to the position of the child carrier facing away from the forward travel direction in forward-facing mode. The term "left" of a child carrier refers to the "left" when viewed from the rear of the child carrier to the front, and the term "right" of a child carrier refers to the "right" when viewed from the rear of the child carrier to the front. The terms "front," "rear," "left," and "right" mentioned herein shall have similar meanings.

[0199] The following describes an exemplary embodiment of the child carrier provided by the present invention using a child stroller as an example. The child stroller includes but is not limited to a sitting stroller, a lying stroller, a sitting and lying stroller, and the like.

[0200] First embodiment

[0201] Figures 1 and 2 illustrate a child carrier according to a first embodiment of the present invention in a forward-facing mode and a rear-facing mode, respectively. The child carrier 110 includes a frame 1100, a seat assembly 1200, a backrest assembly 1300, a rider 1400, and a linkage mechanism 1500. The seat assembly 1200 is mounted on the frame 1100 and is configured to be movable relative to the frame 1100 along the longitudinal direction F (i.e., the front-to-back direction) of the frame 1100 between a first position and a second position. The backrest assembly 1300 is mounted on the seat assembly 1200 and is configured to be adjustable in angle relative to the seat assembly 1200, i.e., its tilt angle is adjustable. The rider 1400 is generally U-shaped. The rider 1400 includes a transverse handlebar 1401 and two push rods 1402 connected to opposite ends of the handlebar 1401. The rider 1400 is pivotally connected to the frame 1100 and is configured to drive the seat assembly 1200 to move relative to the frame 1100 in the longitudinal direction F of the frame 1100 when pivoting relative to the frame 1100. The rider 1400 has two push rods 1402 pivotally connected to the frame 1100 on the left and right sides of the frame 1100, respectively. A linkage mechanism 1500 is provided on one side of the seat assembly 1200 and is connected to the backrest assembly 1300. The linkage mechanism 1500 is configured so that the angular adjustment range of the backrest assembly 1300 relative to the seat assembly 1200 remains the same when the seat assembly 1200 moves between the first position and the second position.

[0202] It should be understood that the same angle adjustment range of the backrest assembly 1300 relative to the seat assembly 1200 described herein means that when the angle of the backrest assembly 1300 relative to the seat assembly 1200 is not adjusted by the belt adjustment device 1900 (see Figure 6) provided on the backrest assembly 1300, the angle of the backrest assembly 1300 relative to the seat assembly 1200 remains basically the same or unchanged within a certain range when the seat assembly 1200 moves from the first position to the second position or from the second position to the first position.

[0203] The frame 1100 includes two lateral frames 1110 disposed opposite each other, and two seat tubes 1120 connected to the lateral frames 1110. The seat assembly 1200 is disposed on the seat tubes 1120. For ease of description, the following description uses the lateral frame 1110 and seat tube 1120 located on one side of the frame 1100 as an example.

[0204] The lateral frame 1110 includes a front leg 1111 and a rear leg 1112. The front leg 1111 and the rear leg 1112 are connected to each other and form a roughly triangular structure with the ground. The lateral frame 1110 also includes a handrail 1113 connected to the front leg 1111 and the rear leg 1112. The handrail 1113 is arranged roughly parallel to the ground or slightly inclined relative to the ground. The front leg 1111, the rear leg 1112, and the handrail 1113 are pivotally connected at the same pivot point (or pivot axis). The lateral frame 1110 also includes a support member 1114. In this embodiment, the support member 1114 is pivotally connected to the handrail 1113 and the seat tube 1120, respectively. In other embodiments, the support member 1114 may also be connected to the rear leg 1112 and the handrail 1113, respectively, to form a roughly triangular structure with the handrail 1113 and the rear leg 1112.

[0205] The seat assembly 1200 can be movably (e.g., slidably) disposed on the seat tube 1120 along the longitudinal direction F of the frame 1100. The seat assembly 1200 includes a movable bracket 1210 and a seat plate (not shown) disposed on the movable bracket 1210. The movable bracket 1210 is movably (e.g., slidably) disposed on the seat tube 1120 along the longitudinal direction F of the frame 1100. Referring to Figures 4 and 5 , the movable bracket 1210 includes a tubular portion 1211 that is slidably mounted on the seat tube 1120 along the longitudinal direction of the frame 1100. It will be appreciated that the movable bracket 1210 can also be movably disposed on the seat tube 1120 along the longitudinal direction of the frame 1100 by other means, such as by providing a slide groove.

[0206] Referring to FIG. 4 , the backrest assembly 1300 includes two parallel backrest tubes 1310 for supporting a backrest panel (not shown). The backrest assembly 1300 is mounted to the seat assembly 1200 via the backrest tubes 1310. The bottom of the backrest tubes 1310 is pivotally connected to the movable bracket 1210, allowing for angle adjustment relative to the movable bracket 1210 and the seat tube 1120. It should be understood that, herein, the angle of the backrest assembly 1300 relative to the seat assembly 1200 corresponds to the angle between the plane of the two backrest tubes 1310 and the plane of the two seat tubes 1120. When the backrest panels are mounted on the two backrest tubes 1310 and the seat panel is mounted on the two movable brackets 1210, the angle of the backrest assembly 1300 relative to the seat assembly 1200 corresponds to the angle between the backrest panel and the seat panel. The angle between the backrest assembly 1300 and the seat assembly 1200 corresponds to the angle between the backrest panel and the seat panel within the passenger space defined by the backrest panel and the seat panel.

[0207] Referring to FIG3 , the backrest assembly 1300 includes a backrest strap 1323 (for clarity, the backrest strap is omitted in some other figures. For example, the backrest strap is not shown in FIG1 and FIG2 , but the child carrier in FIG1 and FIG2 may be provided with a backrest strap similar to FIG8 ). The backrest strap 1323 is connected at each end to the two side frames 1110 , and the upper and middle portions of the backrest tubes 1310 are supported on the backrest strap 1323 . The rider 1400 can pivot relative to the frames 1100, thereby switching the child carrier 110 between a forward-facing mode (see FIG1 ) and a rearward-facing mode (see FIG2 ). The rider 1400 is positioned outside the side frames 1110 and is pivotally connected to the support members 1114 of the side frames 1110. The rider 1400 is pivotally connected to the side frames 1110 (e.g., the support members 1114) via a pin 1410 (see FIG4 ). The pin 1410 may be inserted into the lateral frame 1110 (eg, the support member 1114 ).

[0208] 3 , the rider 1400 may be connected to the seat assembly 1200, for example, to the movable support 1210 of the seat assembly 1200, via a transmission mechanism 1600. The transmission mechanism 1600 may be configured to convert the pivoting of the rider 1400 relative to the frame 1100 into movement of the seat assembly 1200 along the longitudinal direction of the frame 1100, for example, converting the pivoting of the rider 1400 relative to the frame 1100 into movement (e.g., sliding) of the movable support 1210 relative to the seat tube 1120 along the longitudinal direction of the frame 1100.

[0209] The transmission mechanism 1600 is disposed on the inner side of the lateral frame 1110 . The rider 1400 is connected to the transmission mechanism 1600 via a pin 1410 passing through the lateral frame 1110 .

[0210] In this embodiment, the transmission mechanism 1600 is a linkage mechanism. As shown in Figures 3 to 7, the transmission mechanism 1600 includes a first link 1610 and a second link 1620, which are arranged on a side of the movable bracket 1210 away from the lateral frame 1110. The first end of the first link 1610 is pivotally connected to the rider 1400 via a pin 1410. Specifically, one end of the pin 1410 is fixedly connected to the rider 1400, while the other end of the pin 1410 passes through the lateral frame 1110 (e.g., through the support member 1114) and the seat tube 1120 and is fixedly connected to the first end of the first link 1610. For example, the rider 1400 and the first end of the first link 1610 may be provided with square holes. The two ends of the pin 1410 may be square structures and can be locked into the square holes, thereby achieving a fixed connection between the pin 1410, the rider 1400, and the first end of the first link 1610. The second end of the first link 1610 is pivotally connected to the first end of the second link 1620. For example, another pin (not shown) may pass through the second end of the first link 1610 and the first end of the second link 1620 and be fixed to the movable bracket 1210, so that the second end of the first link 1610 is pivotally connected to the first end of the second link 1620 and can pivot relative to the movable bracket 1210. The other pin may also pass through the backrest tube 1310 to achieve a pivotal connection between the backrest tube 1310 and the movable bracket 1210. When the movable bracket 1210 moves along the longitudinal direction F of the vehicle frame 1100, the backrest tube 1310 can move synchronously with the movable bracket 1210. The second end of the second link 1620 is pivotally connected to the seat assembly 1200, for example, to the movable bracket 1210. When the rider 1400 pivots relative to the frame 1100, the rider 1400 can drive the first link 1610 to rotate, and drive the seat assembly 1200 to move along the longitudinal direction of the frame 1100 via the first link 1610 and the second link 1620, for example, driving the movable bracket 1210 to move (e.g., slide) relative to the seat tube 1120 along the longitudinal direction of the frame 1100. It will be understood that the above description is merely an example of the transmission mechanism 1600, and the transmission mechanism 1600 may also adopt other configurations. For example, the first link 1610 and the second link 1620 may be disposed between the lateral frame 1110 and the seat tube 1120, the number of links may be varied, and other transmission mechanisms other than link mechanisms may also be adopted.

[0211] According to the child carrier of this embodiment, when the user turns the rider 1400, the rider 1400 drives the movable bracket 1210 to move relative to the seat tube 1120 along the longitudinal direction of the frame 1100 through the transmission mechanism 1600. At this time, the bottom of the backrest tube 1310 will move synchronously with the movable bracket 1210. Without adjusting the length of the backrest strap 1323, the middle and upper parts of the backrest tube 1310 are supported on the backrest strap 1323 and will not move with the movable bracket, thereby causing the angle of the backrest tube 1310 relative to the seat assembly 1200 to change.

[0212] The linkage mechanism 1500 can be connected to the seat assembly 1200 or the rider 1400, and is connected to the backrest assembly 1300. The linkage mechanism 1500 is configured such that, when the rider 1400 pivots relative to the frame 1100, the backrest assembly 1300 moves relative to the frame 1100 in the longitudinal direction of the frame 1100 without changing its angle relative to the seat assembly 1200. In other words, when the rider 1400 pivots relative to the frame 1100, the rider 1400 drives the seat assembly 1200 to move relative to the frame 1100 in the longitudinal direction F of the frame 1100. The seat assembly 1200, through the linkage mechanism 1500, drives the backrest assembly 1300 to move synchronously with the seat assembly 1200 in the longitudinal direction F of the frame 1100, so that the angle of the backrest assembly 1300 relative to the seat assembly 1200 remains constant. Specifically, the linkage mechanism 1500 can be connected to the rider 1400 or the seat assembly 1200 on one hand, and to the backrest strap 1323 of the backrest assembly 1300 on the other hand, so that when the rider 1400 pivots relative to the frame 1100, the backrest strap 1323 drives the upper and middle portions of the backrest tube 1310 to move synchronously with the bottom portion of the backrest tube 1310, i.e., the backrest tube 1310 and the movable bracket 1210 move synchronously along the longitudinal direction of the frame without pivoting relative to the movable bracket 1210. It should be understood that the upper and middle portions of the backrest tube 1310 described herein are relative to the bottom portion of the backrest tube 1310, i.e., a position at a certain distance from the bottom portion of the backrest tube 1310.

[0213] It should be understood that the angle of the backrest assembly 1300 relative to the seat assembly 1200 remains unchanged, which means that when the angle of the backrest assembly 1300 relative to the seat assembly 1200 is not adjusted by the belt adjustment device 1900 (see Figure 6) (for example, the length of the backrest belt 1323 is not adjusted), when the rider 1400 pivots relative to the frame 1100, the angle of the backrest assembly 1300 relative to the seat assembly 1200 remains basically the same or unchanged within a certain range.

[0214] In this embodiment, the linkage mechanism 1500 is respectively connected to the seat assembly 1200 (for example, the movable bracket 1210) and the end of the backrest strap 1323, and is constructed to drive the end of the backrest strap 1323 to move synchronously with the seat assembly 1200 when the seat assembly 1200 moves along the longitudinal direction of the frame 1100. Since the middle and upper parts of the backrest tube 1310 are supported on the backrest strap 1323, the middle and upper parts and the bottom of the backrest tube 1310 move synchronously with the seat assembly 1200 without changing the angle between the backrest tube 1310 and the seat assembly 1200.

[0215] 4 , 6 , and 7 , the linkage mechanism 1500 includes a linkage rod 1510 having opposing first and second ends. The first end of the linkage rod 1510 is connected to the movable bracket 1210, and the second end of the linkage rod 1510 is movably mounted to the lateral frame 1110 in the longitudinal direction relative to the vehicle frame 1100. The second end of the linkage rod 1510 is fixedly connected to the end of the backrest strap 1323. When the seat assembly 1200 moves in the longitudinal direction relative to the vehicle frame 1100, the first end of the linkage rod 1510 drives the second end of the linkage rod 1510, and thus drives the end of the backrest strap 1323, to move in the longitudinal direction F, thereby driving the upper and middle portions of the backrest tube 1310 to move in the longitudinal direction F. In this way, when the seat assembly 1200 moves relative to the frame 1100 along the longitudinal direction of the frame 1100, the upper and middle portions of the backrest tube 1310 and the bottom portion of the backrest tube 1310 can move synchronously, thereby not pivoting relative to the seat assembly 1200 and changing their angles relative to the seat assembly 1200.

[0216] The linkage rod 1510 is disposed between the lateral frame 1110 and the movable bracket 1210. A first slide groove 1101 is provided on the lateral frame 1110, extending along the longitudinal direction F of the frame 1100. The second end of the linkage rod 1510 is slidably mounted in the first slide groove 1101. In this embodiment, the first slide groove 1101 is provided on the armrest 1113. The length of the first slide groove 1101 is the same as the distance between the first and second positions of the seat assembly 1200. In other embodiments, the length of the first slide groove 1101 may differ from the distance between the first and second positions of the seat assembly 1200, for example, the length of the first slide groove 1101 may be greater than the distance. Referring to FIG. 4 , in this embodiment, the second end of the linkage rod 1510 is mounted on the inner side of the armrest 1113 (i.e., the side of the armrest 1113 facing the seat assembly 1200). The second end of the linkage rod 1510 is slidably mounted in the first slide groove 1101 and is connected to the end of the backrest strap 1323. In some other embodiments, the second end of the linkage rod 1510 may also be installed inside the armrest 1113 .

[0217] As shown in Figures 4 to 7 , the first end of the linkage rod 1510 is connected to the movable bracket 1210. A first protrusion 1512 is provided on the side of the first end of the linkage rod 1510 facing the movable bracket 1210. The movable bracket 1210 is provided with a through hole 1214 (see Figures 5 and 7 ) for receiving the first protrusion 1512. The first protrusion 1512 mates with the through hole 1214 to connect the linkage rod 1510 to the movable bracket 1210. A second protrusion 1212 (see Figure 7 ) extends from the through hole 1214 away from the linkage rod 1510. The first protrusion 1512 is disposed within the second protrusion 1212. A recess 1213 (see FIG. 5 ) is provided on the side of the movable bracket 1210 facing the linkage rod 1510. The position of the recess 1213 corresponds to the position of the through hole 1214. The first end of the linkage rod 1510 can be received in the recess 1213, and the recess 1213 can restrict the first end of the linkage rod 1510 from rotating counterclockwise relative to the movable bracket 1210. The linkage mechanism 1500 also includes an elastic member 1520 (e.g., a torsion spring) disposed around the outer periphery of the second protrusion 1212. One end of the elastic member 1520 abuts between the rib 1215 of the movable bracket 1210 and the second protrusion 1212, and the other end of the elastic member 1520 hooks onto the side of the linkage rod 1510 away from the movable bracket 1210, thereby restricting the first end of the linkage rod 1510 from rotating clockwise relative to the movable bracket 1210. Specifically, when the rider 1400 pivots from the forward mode (see FIG. 1 ) to the rearward mode (see FIG. 2 ), the recess 1213 can restrict the counterclockwise rotation of the first end of the linkage rod 1510, thereby causing the second end of the linkage rod 1510 to slide in the first direction F1 (i.e., the forward travel direction in the forward mode) (see FIG. 7 ), that is, causing the second end of the linkage rod 1510 to slide forward. When the rider 1400 pivots from the rearward mode (see FIG. 2 ) to the forward mode (see FIG. 1 ), the elastic member 1520 can restrict the clockwise rotation of the first end of the linkage rod 1510, thereby causing the second end of the linkage rod 1510 to slide in the second direction F2 (i.e., the forward travel direction in the reverse mode) (see FIG. 7 ), that is, causing the second end of the linkage rod 1510 to slide rearward.

[0218] In this embodiment, when the user rotates the rider 1400 to switch between the forward mode (see Figure 2) and the rearward mode (see Figure 2), the rider 1400 drives the movable bracket 1210 of the seat assembly 1200 to move (for example, slide) on the seat tube 1120 along the longitudinal direction of the frame 1100 through the transmission mechanism 1600, and the bottom of the backrest tube 1310 of the backrest assembly 1300 moves along the longitudinal direction of the frame 1100 with the movable bracket 1210. At the same time, the movable bracket 1210 drives the linkage rod 1510 to move along the longitudinal direction of the frame 1100, thereby driving the end of the backrest strap 1323 and thus driving the upper and middle parts of the backrest tube 1310 to move along the longitudinal direction of the frame 1100 with the seat assembly 1200. In this way, the upper middle portion of the backrest tube 1310 and the bottom portion of the backrest tube 1310 both move synchronously with the seat assembly 1200 , thereby not changing the angle of the backrest assembly 1300 relative to the seat assembly 1200 .

[0219] Second embodiment

[0220] Figures 8 to 15 show a child carrier according to a second embodiment of the present invention. The second embodiment differs from the first embodiment primarily in the arrangement of the linkage mechanism, and similarities with the first embodiment are omitted for clarity.

[0221] In this embodiment, the linkage mechanism 1500 is connected to the rider 1400 and the end of the backrest strap 1323 respectively, and is configured to cause the end of the backrest strap 1323 to move synchronously with the seat assembly 1200 when the rider 1400 pivots relative to the frame 1100.

[0222] 10 and 11 , the linkage mechanism 1500 includes a transmission assembly 1530 and a slider 1540. The slider 1540 is slidably disposed on the lateral frame 1110 along the longitudinal direction F of the frame 1100 and is connected to the end of the backrest strap 1323. The transmission assembly 1530 is connected to a pin 1410 extending through the lateral frame 1110 (e.g., the support member 1114) and the slider 1540, respectively. The transmission assembly 1530 is configured to convert the pivoting of the rider 1400 relative to the frame 1100 (i.e., the rotation of the pin 1410) into sliding movement of the slider 1540 along the longitudinal direction F of the frame 1100, thereby driving the end of the backrest strap 1323, and thus the upper and middle portions of the backrest tube 1310 and the bottom portion of the backrest tube 1310, to move synchronously.

[0223] Specifically, transmission assembly 1530 may include a linkage gear 1531, one or more driven gears 1532, and an output gear 1533. Linkage gear 1531 may be connected to pin 1410 via a traction member 1550 and a drive wheel 1560. Drive wheel 1560 is fixedly connected to pin 1410 and is capable of rotating therewith. For example, drive wheel 1560 may be sleeved around pin 1410. Referring to FIG. 11 , traction member 1550 is respectively connected to drive wheel 1560 and linkage gear 1531. Rotation of drive wheel 1560 drives linkage gear 1531 through traction member 1550. For example, the traction member 1550 may be a cable, one end of which is fixed to a first position of the linkage gear 1531, and the other end of the cable extends to the drive wheel 1560, passes around the drive wheel 1560, and then extends back to the linkage gear 1531 and is fixed to a second position opposite the first position. The portion of the cable wrapped around the drive wheel 1560 is also fixed to a certain position of the drive wheel 1560 (for example, position R shown in FIG11 ). When the drive wheel 1560 rotates, the length of the cable portion on both sides of the drive wheel 1560 and the linkage gear 1531 changes, thereby causing the linkage gear 1531 to rotate. The linkage gear 1531 meshes with one or more driven gears 1532, which in turn mesh with the output gear 1533, which in turn meshes with the slider 1540, so that the rotation of the linkage gear 1531 can drive the slider 1540 to move along the longitudinal direction of the frame 1100. Sliding member 1540 is provided with a rack having a plurality of teeth 1541 (see FIG. 12 ) to facilitate meshing with output gear 1533, thereby driving sliding member 1540 to slide. Since the rotation angle of pin 1410 is relatively small, by providing one or more driven gears 1532, and ensuring that the number of teeth of driven gear 1532 is smaller than that of linkage gear 1531, the relatively small rotation angle of linkage gear 1531 can be amplified into a relatively large rotation angle of output gear 1533, thereby enabling sliding member 1540 to move a greater distance. It should be understood that the above detailed description is merely illustrative, and those skilled in the art may make various adjustments, variations, and improvements. For example, drive wheel 1560 may be omitted, and traction member 1550 may be connected to pin 1410 and linkage gear 1531, respectively. Rotation of pin 1410 can drive linkage gear 1531 to rotate via traction member 1550. For example, under appropriate circumstances, one or more driven gears 1532 or output gears 1533 may be omitted, and the linkage gear 1531 may directly mesh with the sliding member 1540. For another example, the number of driven gears 1532 may be adjusted according to actual conditions.

[0224] 12 to 15 , the transmission assembly 1530 is configured with a plurality of driven gears 1532. The driven gears 1532 include a first driven gear 15321, a second driven gear 15322, and a third driven gear 15323. The first driven gear 15321 is meshed between the linkage gear 1531 and the second driven gear 15322, and the third driven gear 15323 is meshed between the output gear 1533 and the second driven gear 15322. The first driven gear 15321 includes a first gear portion 15321a and a second gear portion 15321b that are coaxially arranged and interconnected, such that the second gear portion 15321b rotates synchronously with the first gear portion 15321a. Optionally, the first gear portion 15321a is integrally formed with or fixedly connected to the second gear portion 15321b by gluing, welding, or the like. The first gear portion 15321a is located on the side of the second gear portion 15321b that faces the linkage gear 1531. The first gear portion 15321a meshes with the linkage gear 1531, while the second gear portion 15321b meshes with the second driven gear 15322. The first gear portion 15321a has fewer teeth than the second gear portion 15321b, and also fewer teeth than the linkage gear 1531. When the linkage gear 1531 rotates, the first gear portion 15321a rotates, and the second gear portion 15321b rotates along with the first gear portion 15321a, thereby driving the second driven gear 15322. In this way, the smaller rotation angle of the linkage gear 1531 is amplified into a larger rotation angle of the first gear portion 15321a, and the smaller transmission distance of the first gear portion 15321a is amplified into a larger transmission distance of the second gear portion 15321b by the synchronously rotating second gear portion 15321b, and is transmitted to the second driven gear 15322. Thus, the first driven gear 15321 amplifies the transmission distance of the linkage gear 1531 (that is, the transmission distance of the drive wheel 1560, see Figure 11). It can be understood that the transmission distance of a gear is the circumference of the gear corresponding to the rotation angle of the gear. The gear includes any one of the linkage gear 1531, the driven gear 1532 and the output gear 1533.

[0225] Accordingly, the third driven gear 15323 includes a first gear portion 15323a and a second gear portion 15323b coaxially arranged and interconnected, so that the second gear portion 15323b rotates synchronously with the first gear portion 15323a. Optionally, the first gear portion 15323a is integrally formed with or fixedly connected to the second gear portion 15321b by gluing, welding, or other methods. The first gear portion 15323a is located on the side of the second gear portion 15323b facing the second driven gear 15322. The first gear portion 15323a meshes with the second driven gear 15322, and the second gear portion 15323b meshes with the third driven gear 15323. The number of teeth of the first gear portion 15323a is less than the number of teeth of the second gear portion 15323b, and less than the number of teeth of the second driven gear 15322. In this way, the smaller rotation angle of the second driven gear 15322 is amplified into a larger rotation angle of the first gear portion 15323a, and the synchronously rotating second gear portion 15323b amplifies the smaller transmission distance of the first gear portion 15323a into a larger transmission distance of the second gear portion 15323b. Thus, the third driven gear 15323 performs a second amplification on the transmission distance of the linkage gear 1531. This amplified transmission distance is transmitted to the output gear 1533 and, through the meshing between the output gear 1533 and the slider 1540, is converted into movement of the slider 1540 in the longitudinal direction F. Specifically, by adjusting the number of teeth or the tooth ratio of the first gear portion 15321a and the second gear portion 15321b of the first driven gear 15321, and / or by adjusting the number of teeth or the tooth ratio of the first gear portion 15323a and the second gear portion 15323b of the third driven gear 15323, the moving distance of the sliding member 1540 in the longitudinal direction F can be adjusted.

[0226] In this embodiment, when the driving wheel 1560, fixed to the pin 1410, rotates a small distance, the transmission distance of the driving wheel 1560 is converted into rotation of the linkage gear 1531 via the traction member 1550. The transmission distance of the linkage gear 1531 is then transmitted multiple times to the output gear 1533 via the multiple driven gears 1532, and is amplified and converted into movement of the sliding member 1540 in the longitudinal direction F. In this way, when the rider 1400 drives the pin 1410 to rotate, the transmission mechanism 1600 can drive the sliding member 1540 to move an appropriate distance in the longitudinal direction F, thereby maintaining a constant angle between the backrest assembly 1300 and the seat assembly 1200.

[0227] In other embodiments, the second driven gear 15322 may not be provided between the first driven gear 15321 and the third driven gear 15323, and the first gear portion 15323a of the third driven gear 15323 may be directly meshed with the second gear portion 15321b of the first driven gear 15321. In other embodiments, only the first driven gear 15321 may be provided to amplify the transmission distance of the linkage gear 1531 once. Alternatively, multiple gears having structures similar to the first driven gear 15321 and / or the third driven gear 15323 may be provided to amplify the transmission distance of the linkage gear 1531 by more than two times.

[0228] In this embodiment, the linkage mechanism 1500 is disposed inside the lateral frame 1110, so that it is not visible outside the lateral frame 1110. The lateral frame 1110 has one or more cavities therein, and the transmission assembly 1530, the sliding member 1540, the traction member 1550, and the driving wheel 1560 are all disposed in the one or more cavities of the lateral frame 1110.

[0229] In this embodiment, the transmission assembly 1530 (including a linkage gear 1531, one or more driven gears 1532, and an output gear 1533) and the sliding member 1540 are disposed in a cavity within the armrest 1113. The driving wheel 1560 is disposed in the cavity of the support member 1114 and is connected to the linkage gear 1531 via a traction member 1550.

[0230] 13 to 15 , the slider 1540 may include a sliding portion 1543 and a connecting portion 1542. A rack is formed on the connecting portion 1542, and teeth 1541 may be provided on the connecting portion 1542. The connecting portion 1542 is configured to mesh with the output gear 1533. When the linkage gear 1531 rotates, the driven gear 1532 and the output gear 1533 drive the connecting portion 1542, thereby driving the sliding portion 1543 to slide in the longitudinal direction of the vehicle frame 1100.

[0231] 12 to 15 , the child carrier 110 further includes a mounting seat 1700 disposed in a cavity within the armrest 1113. Mounting seat 1700 includes a housing 1710, with a baffle 1711 disposed on the inner wall of housing 1710. This baffle 1711 divides housing 1710 into a first accommodating space 1701 and a second accommodating space 1702. The sliding portion 1543 of the slider 1540 can be disposed in the first accommodating space 1701 and slidably mounted on baffle 1711. Referring to FIG. 13 , baffle 1711 can be provided with first and second limiting portions 1712 and 1713 on either side to limit the sliding limit positions of the sliding portion 1543. The distance between first and second limiting portions 1712 and 1713 along the longitudinal direction of the vehicle frame 1100 can be the same as the distance that the seat assembly 1200 moves along the longitudinal direction of the vehicle frame 1100 between its first and second positions. The linkage gear 1531, one or more driven gears 1532, and the output gear 1533 may be disposed in the second accommodating space 1702, at least one of which is engaged with the connecting portion 1542 of the sliding member 1540. The inner wall of the baffle 1711 may be provided with one or more protrusions in the second accommodating space 1702 for mounting the linkage gear 1531, one or more driven gears 1532, and the output gear 1533.

[0232] 13 to 15 , mounting base 1700 may further include a cover 1720 that can be mounted to housing 1710 and, together with housing 1710, define a second accommodating space 1702. A linkage gear 1531, one or more driven gears 1532, and an output gear 1533 may be disposed between cover 1720 and housing 1710. A connecting portion 1542 of slider 1540 may be provided with teeth 1541 at one end and extend beyond the upper end of cover 1720 and outside of cover 1720. An opening 1722 (see FIG. 14 ) may be provided on the outside of cover 1720, communicating with second accommodating space 1702. Linking gear 1531, one or more driven gears 1532, or output gear 1533 may engage with connecting portion 1542 of slider 1540 through opening 1722. Specifically, the output gear 1533 is rotatably disposed within the second accommodating space 1702, and at least a portion of the gear teeth of the output gear 1533 are exposed from the opening 1722 to mesh with the teeth 1541 of the slider 1540. More specifically, the axial dimension of the output gear 1533 (i.e., the thickness of the output gear 1533) is greater than the axial dimension of the one or more driven gears 1532 with which it directly meshes (i.e., the thickness of the driven gears 1532).

[0233] Specifically, as shown in FIG14 , a step 1721 may be provided on the outer side of the cover 1720, and teeth 1541 may be provided on one end of the connecting portion 1542 of the sliding member 1540 and may extend to the step 1721. An opening 1722 is provided through the step 1721, and teeth of the linkage gear 1531, one or more driven gears 1532, or the output gear 1533 may extend from the opening 1722 to engage with the teeth 1541 of the sliding member 1540.

[0234] Referring to FIG8 , the side frame 1110 (e.g., the armrest 1113) is provided with a second slide groove 1102 extending along the longitudinal direction F of the frame 1100. The end of the backrest strap 1323 can pass through the second slide groove 1102 and be fixedly connected to a sliding member 1540 disposed within a cavity of the side frame 1110. The end of the backrest strap 1323 can slide within the second slide groove 1102. When the sliding member 1540 slides along the longitudinal direction of the frame 1100, it can drive the end of the backrest strap 1323 to move along the longitudinal direction of the frame 1100 within the second slide groove 1102. The length of the second slide groove 1102 along the longitudinal direction of the frame 1100 can be the same as the distance between the first and second positions of the seat assembly 1200. In other embodiments, the length of the second slide groove 1102 along the longitudinal direction of the frame 1100 can also be different from the distance between the first and second positions of the seat assembly 1200.

[0235] 14 , the sliding member 1540 may be provided with a groove or a through hole 1544 so as to be connected to the end of the backrest strap 1323 .

[0236] In this embodiment, when the user rotates the rider 1400 to switch between the forward mode and the rearward mode, the pin 1410 rotates along with the rider 1400, thereby driving the drive wheel 1560 to rotate. The rotation of the drive wheel 1560 drives the linkage gear 1531 to rotate via the traction member 1550, thereby driving the sliding member 1540 to slide via one or more driven gears 1532 and the output gear 1533, thereby driving the end of the backrest strap 1323 to move in the longitudinal direction of the frame 1100, and causing the upper middle portion of the backrest tube 1310 to move synchronously with the bottom portion of the backrest tube 1310, thereby preventing the angle between the backrest assembly 1300 and the seat assembly 1200 from changing.

[0237] Third embodiment

[0238] Figures 16 and 17 show a child carrier according to a third embodiment of the present invention. The third embodiment differs from the first or second embodiment primarily in the arrangement of the linkage mechanism, and similarities with the first or second embodiment are omitted here.

[0239] Referring to Figures 16 and 17 , in this embodiment, the linkage mechanism 1500 includes a guide member 1580 and a connector 1590. The guide member 1580 is attached to the armrest 1113 of the lateral frame 1110. The backrest strap 1323 is connected to the connector 1590, and one of the backrest strap 1323 and the connector 1590 passes through the guide member 1580. The connector 1590 is in turn connected to the seat assembly 1200 and is capable of moving along with the seat assembly 1200 in the longitudinal direction F of the vehicle frame 1100, thereby driving the backrest tube 1310 to move synchronously with the seat assembly 1200 via the backrest strap 1323. The guide member 1580 is, for example, a pulley or a boss, but is not limited thereto. One of the backrest strap 1323 and the connector 1590 is at least partially wrapped around the guide member 1580 and is capable of sliding relative to the guide member 1580. Optionally, the end of the backrest strap 1323 passes through the guide member 1580 and is connected to the connector 1590. The connector 1590 is, for example, a hook, which is hooked onto the seat assembly 1200, and the backrest strap 1323 is at least partially wound around the guide member 1580. Alternatively, one end of the connector 1590 is connected to the seat assembly 1200, and the other end of the connector 1590 passes through the guide member 1580 and is connected to the backrest strap 1323. The connector 1590 is, for example, a rope, which is at least partially wound around the guide member 1580.

[0240] The guide member 1580 supports the end of the backrest strap 1323, thereby supporting the backrest tube 1310 on the middle portion of the backrest strap 1323. When the seat assembly 1200 moves along the longitudinal direction F of the vehicle frame 1100, the end of the backrest strap 1323 moves via the connector 1590, causing a change in the length of the portion of the backrest strap 1323 between the guide member 1580 and the backrest tube 1310, thereby causing the middle and upper portion of the backrest tube 1310 to move along the longitudinal direction F of the vehicle frame 1100. Specifically, when the seat assembly 1200 moves forward along the longitudinal direction F, the length of the portion of the backrest strap 1323 between the guide member 1580 and the backrest tube 1310 decreases, causing the middle and upper portion of the backrest tube 1310 to move forward. When the seat assembly 1200 moves rearward in the longitudinal direction F, the length of the portion of the backrest belt 1323 between the guide 1580 and the backrest tube 1310 increases, thereby causing the upper and middle portion of the backrest tube 1310 to move rearward.

[0241] The guide member 1580 is positioned so that after the end of the backrest strap 1323 passes through it, the upper middle portion of the backrest tube 1310 can be supported on the backrest strap 1323. For example, the guide member 1580 is generally located higher than the bottom of the backrest tube 1310, for example, attached to the lateral frame 1110, such as the armrest 1113 of the lateral frame 1110. The guide member 1580 can be, for example, a smooth cylindrical rod, so that the portion of the backrest strap 1323 passing through the guide member 1580 can slide on the guide member 1580. The guide member 1580 can also be, for example, a roller to facilitate the sliding of the portion of the backrest strap 1323 passing through the guide member 1580. It is understood that the guide member 1580 is not limited to this embodiment and may employ other configurations, as long as it supports the portion of the backrest strap 1323 passing through it and allows the portion of the backrest strap 1323 passing through it to slide thereon. The number of guide members 1580 may be one or more, and the specific configuration may be determined based on actual needs. In some embodiments, the connector 1590 may be a separate connector, such as a cable, which is connected to the seat assembly 1200 (e.g., the movable support 1210 or the seat) and the end of the backrest strap 1323, respectively. In some embodiments, the connector 1590 is part of the backrest strap 1323, or the connector 1590 may be integrally formed with the backrest strap 1323. In other words, the end of the backrest strap 1323 may be directly connected to the seat assembly 1200 after passing through the guide member 1580. It is understood that the connector 1590 is not limited to this embodiment and may employ other configurations, as long as it achieves the aforementioned functions.

[0242] In this embodiment, when the seat assembly 1200 moves along the longitudinal direction F of the vehicle frame 1100, the seat assembly 1200 causes the end of the backrest strap 1323 to move via the connecting member 1590, thereby causing a change in the length of the portion of the backrest strap 1323 between the guide member 1580 and the backrest tube 1310, which in turn causes the middle and upper portion of the backrest tube 1310 to move along the longitudinal direction F of the vehicle frame 1100. Since the middle and upper portion of the backrest tube 1310 can move synchronously with the bottom portion of the backrest tube 1310, the angle between the backrest assembly 1300 and the seat assembly 1200 is prevented from changing.

[0243] Fourth embodiment

[0244] Figures 18 to 24 show a child carrier according to a fourth embodiment of the present invention. The following mainly describes the differences between the fourth embodiment and the first embodiment, and the same or similar aspects as the first embodiment will not be repeated.

[0245] Referring to Figures 18 and 24 , the second end of the linkage rod 1510 is mounted within the armrest 1113. Specifically, the armrest 1113 is provided with a receiving slot 11131, which is a generally downward-facing U-shaped slot. A first slide 1101 extends through one sidewall of the slot 11131. The second end of the linkage rod 1510 extends from below into the slot 11131 and is slidably mounted to the first slide 1101 via a sliding pin 1519. This results in a more concise and aesthetically pleasing connection between the linkage rod 1510 and the armrest 1113.

[0246] The linkage mechanism 1500 also includes a fixing plate 1570. Both the second end of the linkage rod 1510 and the fixing plate 1570 are slidably mounted in the first slide groove 1101 via a sliding pin 1519. Referring to Figures 18 and 24, the fixing plate 1570 is disposed on the side of the armrest 1113 facing the seat assembly 1200. In other embodiments, the fixing plate 1570 may also be disposed within the armrest 1113, i.e., within the receiving groove 11131. In this embodiment, the end of the backrest strap 1323 is connected to the fixing plate 1570. Specifically, the fixing plate 1570 is provided with a connecting hole 1572, through which the end of the backrest strap 1323 is inserted. In other words, the end of the backrest strap 1323 is connected to the second end of the linkage rod 1510 via the fixing plate 1570 and the sliding pin 1519. This allows the fixing plate 1570 and the second end of the linkage rod 1510 to slide synchronously with the sliding pin 1519 along the first slide groove 1101, thereby causing the end of the backrest strap 1323 to move synchronously with the second end of the linkage rod 1510. Specifically, the sliding pin 1519 sequentially passes through the fixing plate 1570, the first slide groove 1101, and the second end of the linkage rod 1510, and is retained within the fixing plate 1570 and the linkage rod 1510. More specifically, referring to FIG. 24 , the fixing plate 1570 has a first through-hole 1571, and the second end of the linkage rod 1510 has a second through-hole 1518. The first end of the sliding pin 1519 passes through the first through-hole 1571, the first slide groove 1101, and the second through-hole 1518, and is received within the receiving groove 11131. The first end of sliding pin 1519 is slightly larger than the diameter of second through-hole 1518, allowing it to pass through second through-hole 1518 and be retained on the side of second through-hole 1518 away from fixing plate 1570. A flange 15192 is formed on the second end of sliding pin 1519, extending laterally from the sliding pin 1519, so that flange 15192 of sliding pin 1519 is retained on the side of first through-hole 1571 of fixing plate 1570 away from linkage rod 1510. This prevents sliding pin 1519 from separating from linkage rod 1510 and / or fixing plate 1570 during use. In other embodiments, sliding pin 1519 may be retained within linkage rod 1510 and fixing plate 1570 using other suitable means. For example, the first end of the sliding pin 1519 can be interference fit with the second through hole 1518, or a nut can be connected to the second end of the sliding pin 1519; for another example, the first sliding groove 1101 passes through the side walls of the accommodating groove 11131, and the sliding pin 1519 is inserted into the first sliding groove on the side walls of the accommodating groove 11131, and the first end of the sliding pin 1519 forms a flange or a connecting nut.

[0247] 20 to 23 , the frame 1100 is further provided with a locking mechanism 1190. Locking mechanism 1190 is capable of locking the frame 1100 in the expanded state shown in FIG18 and FIG20 . The support member 1114 of the lateral frame 1110 includes a first support frame 1114a and a second support frame 1114b. The first end of the first support frame 1114a is pivotally connected to the second end of the second support frame 1114b. The second end of the first support frame 1114a is pivotally connected to the armrest 1113. The first end of the second support frame 1114b is pivotally connected to the rear leg 1112. Specifically, the push rod 1402 of the rider 1400 is pivotally connected to the first support frame 1114a and the second support frame 1114b via a pin 1410. In other words, the pin 1410 extends through the first support frame 1114a, the second support frame 1114b, and the push rod 1402 of the rider 1400, defining a pivot axis X1 among the three. The locking mechanism 1190 is capable of locking the first support frame 1114a relative to the second support frame 1114b, thereby restricting pivotal movement between the first and second support frames 1114a, 1114b, and thereby preventing the frame 1100 from folding. Specifically, when the locking mechanism 1190 is in the locked state, the first support frame 1114a is fixed relative to the second support frame 1114b, and the first support frame 1114a is restricted from pivoting relative to the second support frame 1114b, thereby restricting the folding or unfolding of the lateral frame 1110, and thus restricting the folding or unfolding of the vehicle frame 1100. When the locking mechanism 1190 is in the unlocked state, the first support frame 1114a is allowed to pivot relative to the second support frame 1114b, thereby allowing the vehicle frame 1100 to fold to the folded state shown in FIG. 19 , or to unfold from the folded state shown in FIG. 19 to the unfolded state shown in FIG. 18 . The locking mechanism 1190 can be unlocked (i.e., driven to switch from the locked state to the unlocked state) by any suitable unlocking mechanism 1180.

[0248] The locking mechanism 1190 includes a locking member 1191. The second support frame 1114b is provided with a locking slot 11142. Referring to Figures 18 and 21-23, the locking slot 11142 includes an unfolded locking slot 11142a provided at the second end of the second support frame 1114b. A sliding slot 11141 is provided on the side of the first support frame 1114a facing the push rod 1402 of the rider 1400. The locking member 1191 is slidably disposed within the sliding slot 11141. The locking member 1191 has a locking end 11912 and is switchable between a locked position and a released position. When the frame 1100 is in the expanded state and the locking member 1191 is in the locked position, the locking mechanism 1190 is in the locked state, and the locking end 11912 of the locking member 1191 is suitable for being inserted into the expanded locking groove 11142a to limit the folding of the frame 1100 (that is, to lock the frame 1100 in the expanded state).

[0249] Locking member 1191 includes a locking portion 11911 and a resisting portion 11913, which are interconnected. Locking portion 11911 is slidably disposed within sliding groove 11141 and is adapted to be inserted into locking groove 11142. The lower end of locking portion 11911 is formed as locking end 11912. Resisting portion 11913 has one end connected to locking portion 11911 and the other end protruding toward push rod 1402 of rider 1400. Resisting portion 11913 is adapted to be resisted by release mechanism 1180.

[0250] 19 and 25 , the locking groove 11142 further includes a folding locking groove 11142b. As shown in FIG22 , the folding locking groove 11142b is disposed on the second support frame 1114b and is positioned opposite the expanding locking groove 11142a. Specifically, the folding locking groove 11142b and the expanding locking groove 11142a are respectively disposed on either side of the pivot axis X1 (i.e., the pin 1410, see FIG23 ) between the second support frame 1114b and the first support frame 1114a. Specifically, the folding locking groove 11142b and the expanding locking groove 11142a are respectively distributed on a circumferential surface centered on the pivot axis X1. Thus, when the vehicle frame 1100 is in the expanded state, the expanded locking groove 11142a is aligned with the locking end 11912. When the vehicle frame 1100 switches to the collapsed state, the second support frame 1114b rotates relative to the first support frame 1114a about the pivot axis X1, and the collapsed locking groove 11142b is aligned with the locking end 11912. In this embodiment, when the vehicle frame 1100 is in the collapsed state and the locking member 1191 is in the locked position, the locking mechanism 1190 is in the locked state, and the locking end 11912 is adapted to be inserted into the collapsed locking groove 11142b to restrict the expansion of the vehicle frame 1100. At this time, the locking member 1191 is not locked with the rear leg 1112. When the locking member 1191 is in the unlocking position, the locking mechanism 1190 is in the unlocking state, and the locking end 11912 is disengaged from the locking slot 11142, so that the frame 1100 can be folded or unfolded, which is equivalent to the frame 1100 being able to switch freely between the unfolded state and the folded state.

[0251] Referring to Figure 23, the locking mechanism 1190 further includes a lock reset member 1192, which is disposed between the locking member 1191 and the second support frame 1114b. Specifically, the first support frame 1114a is provided with a receiving slot 11145, which communicates with the sliding slot 11141 and is recessed relative to the bottom wall of the sliding slot 11141. At least a portion of the locking member 1191 extends into the receiving slot 11145. The lock reset member 1192 is located within the receiving slot 11145 and is adapted to provide a force to the locking member 1191, thereby moving the locking member 1191 toward the locked position. Thus, after the locking mechanism 1190 is released, the lock reset member 1192 permanently switches the locking mechanism 1190 to the locked state.

[0252] 19 to 23 , locking mechanism 1190 further includes a fixing seat 1193, which is disposed on rear leg 1112 and has a locking hole 11931. Locking member 1191 further includes a locking portion 11914, which is connected to locking portion 11911. Specifically, locking portion 11914 is connected to push portion 11913 via locking portion 11911, so that locking portion 11914 moves together with push portion 11913. Locking portion 11914 has a locking end 11915 extending toward rear leg 1112. When locking member 1191 is in the locked position, locking end 11915 is adapted to engage with locking hole 11931, thereby limiting relative movement between support member 1114 and rear foot 1112, thereby limiting relative movement between front foot 1111 and rear foot 1112, and thereby enhancing the overall rigidity of lateral frame 1110. Referring to Figures 21 and 22 , first support frame 1114a, second support frame 1114b, seat tube 1120, and push rod 1402 of rider 1400 are pivotally connected to each other via pin 1410. When the frame 1100 is in the expanded state and the locking member 1191 is in the locked position, on the one hand, the locking end 11912 of the locking member 1191 is inserted into the expanded locking groove 11142a to relatively lock the first support frame 1114a and the second support frame 1114b, and on the other hand, the locking end 11915 of the locking member 1191 is inserted into the locking hole 11931 to relatively lock the first support frame 1114a and the rear foot 1112, so that the front foot 1111 and the rear foot 1112 seat tube 1120 form a stable triangular structure, and the armrest 1113, the first support frame 1114a and the rear foot 1112 form a stable triangular structure, thereby preventing the angle between the front foot 1111 and the rear foot 1112 from changing, and the structure of the frame 1100 is more stable. For example, when the child carrier 110 is pushed in the opposite direction, the rear legs 1112 encounter an obstacle (e.g., a step obstacle) without causing the angle between the front legs 1111 and the rear legs 1112 to change and thus shake. This improves the overall rigidity of the lateral frame 1110 (i.e., the frame 1100), allowing the child carrier 110 to easily overcome the obstacle. At the same time, the locking end 11915 engages with the locking hole 11931 of the fixing seat 1193, further restricting the folding of the frame 1100. When the frame 1100 is in the folded state and the locking member 1191 is in the locked position, the locking end 11915 disengages the locking hole 11931, and the locking end 11912 engages with the folding locking groove 11142b, thereby restricting the expansion of the frame 1100. When the locking member 1191 is in the unlocking position, the locking end 11915 disengages from the locking hole 11931, and the locking end 11912 disengages from the locking slot 11142, that is, the locking end 11912 is separated from both the expanded locking slot 11142a and the folded locking slot 11142b, thereby allowing the frame 1100 to be folded or expanded.

[0253] The second support frame 1114b is provided with a guide slot 11143, into which the locking portion 11914 is slidably disposed, thereby restricting the movement of the locking portion 11914 (i.e., the locking member 1191) in a predetermined direction and preventing the locking member 1191 from shifting during movement. One end of the guide slot 11143 is open or provided with a through hole 11144, allowing the locking end 11915 of the locking portion 11914 to extend out of the guide slot 11143 and engage with the locking hole 11931.

[0254] 23 , the locking member 1191 is integrally formed. Optionally, the locking portion 11914 can be fixedly connected to the locking portion 11911 by, for example, gluing or welding; or, the locking portion 11914 can be detachably connected to the locking portion 11911 by, for example, threading or snapping.

[0255] Referring to Figures 22 and 23 , a fixing base 1193 is disposed on the rear leg 1112 near the pivotal connection between the first support frame 1114a and the second support frame 1114b. The fixing base 1193 is detachably connected to the rear leg 1112. Optionally, the fixing base 1193 can be fixed to the rear leg 1112 by gluing, welding, or other methods, or can be integrally formed on the rear leg 1112. In other embodiments, the fixing base 1193 may be omitted, and the locking hole 11931 may be directly disposed on the rear leg 1112.

[0256] In this embodiment, the locking mechanism 1190 can be released by a release mechanism 1180 provided on the rider 1400. The release mechanism 1180 includes an operating member 1181 provided on the handle 1401 and a driving member 1182 provided on two push rods 1402. The operating member 1181 can be operated and can drive the two driving members 1182 to move, for example, via two pulling members (not shown). The driving members 1182 are provided with a driving portion 11821 that protrudes toward the lateral frame 1110. When the child carrier 110 is in the forward-facing mode (i.e., the forward-facing mode, see FIG. 1 ), the guide slot 11143 of the frame 1100 extends parallel to the direction in which the push rods 1402 of the rider 1400 extend. The driving member 1182 pushes against the locking member 1191 of the locking mechanism 1190. Specifically, the driving portion 11821 abuts against the underside of the abutting portion 11913. At this time, operating (for example, pressing) the operating member 1181 can drive the driving member 1182 to move upward along the push rod 1402. At the same time, the driving member 1182 drives the locking member to move upward to the unlocking position through the contact between the driving part 11821 and the pushing part 11913, so that the locking end 11912 of the locking member 1191 disengages from the locking groove 11142, and the locking end 11915 disengages from the locking hole 11931, thereby realizing the unlocking of the locking mechanism 1190 and allowing the frame 1100 to be folded. When the child carrier 110 is in the rear-facing mode (i.e., in reverse use, see Figures 18 and 22), the driving member 1182 is separated from the locking member 1191. At this time, if the operating member 1181 is operated, the release mechanism 1180 cannot drive the locking mechanism 1190 to switch from the locked state to the released state. In other words, the locking mechanism 1190 does not respond to the release mechanism 1180, and the locking mechanism 1190 remains in the locked state and restricts the folding of the frame 1100. Of course, the locking mechanism 1190 can also be released by other suitable release mechanisms 1180, as long as the locking mechanism 1190 can be released.

[0257] The operating principles of unfolding, locking, and folding the child carrier according to this embodiment will be described below.

[0258] 18 and 22 , when the child carrier frame 1100 is in the deployed state, the locking mechanism 1190 is in the locked state, with the locking end 11912 of the locking member 1191 engaging with the deployed locking groove 11142a, and the locking end 11915 of the locking member 1191 engaging with the locking hole 11931 on the fixing seat 1193. This locks the frame 1100 in the deployed state and limits the change in the angle between the front legs 1111 and the rear legs 1112, making the frame 1100 more stable.

[0259] To fold the child carrier 1100, first switch the child carrier to forward mode. Then, press the operating member 1181 of the release mechanism 1180. This drives the two driving members 1182 to move along the two push rods 1402. Each driving member 1182 pushes against the corresponding pushing portion 11913 of the locking member 1191, which moves along the guide groove 11143, causing the locking member 1191 to move from the locked position to the released position. At this point, the locking end 11915 disengages the locking hole 11931, and the locking end 11912 disengages the extended locking groove 11142a, allowing the child carrier 1100 to fold. 19 and 25 , when the frame 1100 is fully folded, the operating member 1181 is released, the operating member 1181 and each driving member 1182 are reset, and the locking member 1191 is moved from the unlocked position to the locked position under the action of the lock reset member 1192, so that the locking end 11912 of the locking member 1191 engages with the folded locking groove 11142b, thereby locking the frame 1100 in the folded position. When the frame is in the folded state, the extension direction of the push rod 1402 of the rider 1400 is parallel to the extension direction of the guide groove 11143.

[0260] When the vehicle frame needs to be unfolded, the operating member 1181 is pressed, which drives the two driving members 1182 to move along the two push rods 1402. Each driving member 1182 pushes the corresponding locking member 1191's pushing portion 11913 along the guide groove 11143, causing the locking member 1191 to move from the locked position to the unlocked position. At this point, the locking end 11912 is disengaged from the retracted locking groove 11142b, allowing the vehicle frame 1100 to be unfolded. Referring to Figure 18, when the vehicle frame 1100 is fully unfolded, the operating member 1181 is released, the operating member 1181 and each driving member 1182 are reset respectively, and the locking member 1191 moves from the unlocking position to the locking position under the action of the locking reset member 1192, so that the locking end 11912 of the locking member 1191 is inserted and matched with the unfolded locking groove 11142a, and the locking end 11915 is inserted and matched with the locking hole 11931.

[0261] In this embodiment, the overall rigidity of the lateral frame 1110 can be enhanced by the insertion and cooperation between the locking portion 11914 of the locking member 1191 and the locking hole 11931, so that when the child carrier 110 encounters an obstacle, the angle between the front leg 1111 and the rear leg 1112 remains basically unchanged, thereby allowing the child carrier 110 to easily overcome the obstacle during the pushing process.

[0262] It can be understood that the locking mechanism 1190 and the unlocking mechanism 1180 provided in this embodiment are also applicable to the child carriers in the first to third embodiments or other similar embodiments described above.

[0263] Fifth embodiment

[0264] Figures 26 to 30 show a child carrier according to a fifth embodiment of the present invention. The following mainly describes the differences between the fifth embodiment and the fourth embodiment, and the same or similar aspects as the fourth embodiment will not be repeated.

[0265] In this embodiment, the child carrier 110 further includes a headrest 1800 pivotally connected to the backrest assembly 1300. The backrest tube 1310 of the backrest assembly 1300 is generally U-shaped, comprising a transverse top section 1311 and two side sections 1312 connected to opposite ends of the top section 1311. The two side sections 1312 are parallel to each other, and each end distal from the top section 1311 is pivotally connected to the movable bracket 1210, allowing the backrest tube 1310 to pivot relative to the movable bracket 1210, thereby adjusting the angle between the backrest assembly 1300 and the seat assembly 1200, i.e., the complementary angle to the recline angle of the backrest assembly 1300. The headrest 1800 is pivotally connected to the top section 1311 of the backrest tube 1310. When the rider 1400 pivots relative to the frame 1100 and the seat assembly 1200 drives the backrest assembly 1300 to move synchronously along the longitudinal direction F of the frame 1100, the angle of the backrest assembly 1300 relative to the seat assembly 1200 remains unchanged, and the angle of the headrest 1800 relative to the backrest assembly 1300 remains unchanged.

[0266] The angle between the backrest assembly 1300 and the seat assembly 1200 is adjustable within a predetermined range defined by a minimum angle and a maximum angle. The minimum angle is, for example, approximately 95°, and the maximum angle is, for example, approximately 180°. Depending on the angle between the backrest assembly 1300 and the seat assembly 1200, the child carrier 110 can be used in a sitting position or a lying position. In the sitting position, the angle between the backrest assembly 1300 and the seat assembly 1200 is at its minimum angle, while in the lying position, the angle between the backrest assembly 1300 and the seat assembly 1200 is at its maximum angle. By adjusting the angle between the backrest assembly 1300 and the seat assembly 1200, the child carrier 110 can be switched between the sitting position and the lying position.

[0267] In this embodiment, the headrest 1800 is configured so that its angle relative to the backrest assembly 1300 changes as the angle of the backrest assembly 1300 relative to the seat assembly 1200 changes. When the child carrier 110 is in a sitting position, the backrest assembly 1300 is in a relatively upright position relative to the seat assembly 1200 (i.e., the backrest assembly 1300 is in an upright position), and the headrest 1800 is generally parallel to the backrest assembly 1300. When the child carrier 110 is in a lying position, the backrest assembly 1300 is generally parallel to the seat assembly 1200 (i.e., the backrest assembly 1300 is in a horizontal position), and the headrest 1800 is generally perpendicular to the backrest assembly 1300. In the lying position, the headrest 1800, being generally perpendicular to the backrest assembly 1300, can act as a head stop to prevent the head of a child lying flat in the child carrier 110 from sliding out of or protruding from the child carrier 110.

[0268] The bottom of the headrest 1800 is pivotally connected to the top section 1311 of the backrest tube 1310. The headrest 1800 is pivotable relative to the backrest assembly 1300 within an angle range of approximately 90° to approximately 180°. A headrest elastic member 1810 is disposed between the headrest 1800 and the backrest assembly 1300. The headrest elastic member 1810 is adapted to bias the headrest 1800 so that it remains substantially parallel to the seat assembly 1200. Hereinafter, the state in which the headrest 1800 remains substantially parallel to the seat assembly 1200 will be referred to as the initial state of the headrest 1800. In this embodiment, the headrest elastic member 1810 is in the form of a double torsion spring, having two spring portions 1812 and a U-shaped abutment portion 1811. The two spring portions 1812 are located at either end of the U-shaped abutment portion 1811. The two spring portions 1812 of the headrest elastic member 1810 are disposed around the top section 1311 of the backrest tube 1310. The U-shaped abutment portion 1811 of the headrest elastic member 1810 abuts the head support surface of the headrest 1800, which is adapted to support the head of a child in the child carrier 110. The head support surface of the headrest 1800 can pivot toward the back support surface defined by the backrest assembly 1300, from a position parallel to the back support surface to a position perpendicular to the back support surface. The headrest elastic member 1810 is adapted to apply an elastic restoring force to the headrest 1800 via the U-shaped abutment portion 1811, thereby maintaining the headrest 1800 substantially parallel to the seat assembly 1200, that is, maintaining the head support surface substantially parallel to the back support surface. In other embodiments, the headrest elastic member 1810 may be a single torsion spring, a leaf spring, a shaped spring, or other elastic member.

[0269] The top of the headrest 1800 is connected to the vehicle frame 1100 via a driving member 1320. In this embodiment, the driving member 1320 is in the form of a strap, and the top of the headrest 1800 is connected to the fixing plate 1570 via the driving member 1320. The driving member 1320 is adapted to pull the headrest 1800 so that the headrest 1800 pivots relative to the backrest assembly 1300 when the backrest assembly 1300 pivots relative to the seat assembly 1200 to switch the child carrier 110 from a sitting position to a lying position. Specifically, the driving member 1320 between the fixing plate 1570 and the headrest 1800 maintains a substantially constant length. As the tilt angle of the backrest assembly 1300 increases, the distance between the top section 1311 of the backrest assembly 1300 and the fixing plate 1570 increases, and the distance between the headrest 1800 connected to the top section 1311 and the fixing plate 1570 also increases accordingly. The driving member 1320 pulls the top of the headrest 1800 tight. The tension applied by the driving member 1320 to the headrest 1800 causes the headrest elastic member 1810 to twist and deform, thereby driving the headrest 1800 to pivot relative to the backrest assembly 1300 in the direction from the head support surface toward the back support surface. As shown in Figures 28 to 30, when the child carrier 110 is in a flat position, the tension of the driving member 1320 forces the headrest 1800 to be substantially perpendicular to the backrest assembly 1300. At this point, the headrest 1800 acts as a headrest.

[0270] In the process of switching the child carrier 110 from a lying state to a sitting state, that is, in the process of reducing the inclination angle of the backrest assembly 1300, the distance between the top section 1311 of the backrest assembly 1300 and the fixing plate 1570 is reduced, and the distance between the headrest 1800 connected to the top section 1311 and the fixing plate 1570 is also reduced accordingly. The pulling force of the driving member 1320 on the headrest 1800 is weakened, and the elastic potential energy stored in the headrest elastic member 1810 due to torsional deformation is released. The elastic restoring force of the headrest elastic member 1810 will drive the headrest 1800 to pivot relative to the backrest assembly 1300 in the direction in which the head support surface is away from the back support surface. As shown in Figures 26 and 27, when the child carrier 110 is in a sitting state, the driving member 1320 is basically in a relaxed state, and there is no pulling force on the headrest 1800. Under the elastic restoring force of the headrest elastic member 1810, the headrest 1800 returns to its initial state, that is, the headrest 1800 is roughly parallel to the seat assembly 1200.

[0271] 26 and 27 , two mounting holes 1820 are defined along the transverse direction at the top of the headrest 1800. The two mounting holes 1820 are located adjacent to two transversely opposing sides of the headrest 1800. In this embodiment, the driving member 1320 is in the form of a single strap, with both ends of the driving member 1320 fixed to the two mounting holes 1820. The securing of each end of the driving member 1320 to the corresponding mounting hole 1820 can be achieved by any suitable method known in the art. For example, after passing through the mounting hole 1820, the end of the driving member 1320 can be connected to a positioning member having a size larger than the diameter of the mounting hole 1820. Alternatively, after passing through the mounting hole 1820, the end of the driving member 1320 can be connected to a positioning post fixed to the headrest 1800. These details will not be elaborated herein. In some other embodiments, the headrest 1800 may not be provided with the mounting hole 1820. Alternatively, the headrest 1800 may be provided with any other fixing parts such as buckles, belt clips, belt hooks, belt seats, etc., as long as the end of the driving member 1320 can be fixed.

[0272] The driving member 1320 includes a first headrest strap 1321, a second headrest strap 1322, and a backrest strap 1323. In this embodiment, the driving member 1320 is in the form of a single strap, and the first headrest strap 1321, the second headrest strap 1322, and the backrest strap 1323 correspond to the three sections of the driving member 1320, respectively. The first headrest strap 1321 and the second headrest strap 1322 are the head and tail sections of the single strap, respectively, and the backrest strap 1323 is the middle section of the single strap between the first headrest strap 1321 and the second headrest strap 1322. The length of the first headrest strap 1321 is equal to the length of the second headrest strap 1322. The first ends of the first headrest strap 1321 and the second headrest strap 1322 are respectively fixed to the headrest plate 1800. The second ends of the first headrest strap 1321 and the second headrest strap 1322 are each connected to a fixing piece 1570 provided on the armrest 1113 of a corresponding one of the two lateral frames 1110. The backrest strap 1323 is used to support the upper and middle portion of the backrest tube 1310. Both ends of the backrest strap 1323 are connected to the fixing piece 1570 of the armrest 1113 of a corresponding one of the two lateral frames 1110. The center portion of the backrest strap 1323 is disposed in the strap adjustment device 1900. The strap adjustment device 1900 is arranged on the rear side of the backrest of the child carrier 110. The length of the portion of the backrest strap 1323 extending from the strap adjustment device 1900 to each fixing plate 1570 can be adjusted by the strap adjustment device 1900. This length, referred to hereinafter as the effective backrest support length, is the length of the backrest strap 1323 between the fixing plate 1570 and the strap adjustment device 1900. The strap adjustment device 1900 is configured to adjust the length of the backrest strap 1323 received therein (i.e., the center portion of the backrest strap 1323), thereby adjusting the effective backrest support length. When the effective backrest support length increases, the backrest assembly 1300 is allowed to pivot rearward relative to the seat assembly 1200 to increase its recline angle. When the effective backrest support length decreases, the backrest assembly 1300 is forced to pivot forward relative to the seat assembly 1200 to decrease its recline angle.

[0273] 28 and 30 , the fixing plate 1570 is provided with a connecting hole 1572, through which the driving member 1320 passes. Specifically, for the driving member 1320 in the form of a single strap, the driving member 1320 further includes a connecting segment extending from the second end of each of the first headrest strap 1321 and the second headrest strap 1322 and extending to the end of the backrest strap 1323. One end of the connecting segment passes through the connecting hole 1572 and is connected to the other end of the connecting segment, for example, by sewing, to form a closed loop segment that bypasses the connecting hole 1572. Thus, the second end of each of the first headrest strap 1321 and the second headrest strap 1322 is connected to the fixing plate 1570 via the connecting segment, and the end of the backrest strap 1323 is also connected to the fixing plate 1570 via the connecting segment. Taking the connecting section of the driving member 1320 that bypasses the connecting hole 1572 as the starting section, the driving member 1320 branches out at the sewn connection of the connecting section into the first headrest strap 1321 and the backrest strap 1323, or the second headrest strap 1322 and the backrest strap 1323 of the driving member 1320. In this embodiment, the driving member 1320 can first be passed through the connecting hole 1572 of the fixing plate 1570, and then the two ends of the connecting section are sewn together. The fixing plate 1570 is then attached to the armrest 1113. In this embodiment, there are two fixing plates 1570, and the driving member 1320 forms a sewn connection after bypassing each fixing plate 1570. The portion of the driving member 1320 between each sewn connection and the headrest plate 1800 is the first headrest strap 1321 or the second headrest strap 1322, and the portion of the driving member 1320 between the two sewn connections is the backrest strap 1323. In some other embodiments, any suitable method can be used instead of sewing connection, for example, the two ends of the connecting section can be knotted together, as long as the first headrest strap 1321 and the backrest strap 1323, or the second headrest strap 1322 and the backrest strap 1323 are fixed relative to the fixing plate 1570.

[0274] As described above, in this embodiment, the driving member 1320 is in the form of a single strap. Using a single strap to simultaneously secure the first headrest strap 1321, the second headrest strap 1322, and the backrest strap 1323 facilitates the securing of the various components of the driving member 1320, saves steps, and simplifies the structure of the securing members used to secure the various components of the driving member 1320. In other embodiments, the driving member 1320 may include multiple straps. For example, it may include three straps, one serving as the backrest strap 1323, and the other two serving as the first headrest strap 1321 and the second headrest strap 1322, respectively. In other words, the first headrest strap 1321, the second headrest strap 1322, and the backrest strap 1323 are each secured by at least one strap. The connecting section of the driving member 1320 may be secured by the end of the backrest strap 1323, or by the second ends of the first headrest strap 1321 and the second headrest strap 1322. Thus, the first headrest strap 1321, the second headrest strap 1322 and the backrest strap 1323 can each be fixed to the fixing plate 1570. In this case, the connecting section may not be a closed ring section as in the present embodiment, but may be any form that can be connected to the fixing plate.

[0275] In this embodiment, side panels 1330 are respectively installed on the two lateral sections 1312 of the backrest assembly 1300. Each of the first headrest strap 1321 and the second headrest strap 1322 of the driving member 1320 is suitable for passing through the corresponding side panel 1330 to be connected to the headrest panel 1800. The side panel 1330 is provided with a guide groove 1331 and two guide portions 1332. The two guide portions 1332 are located at both ends of the guide groove 1331, and each guide portion 1332 is provided with a through hole connected to the guide groove 1331. Each of the first headrest strap 1321 and the second headrest strap 1322 is suitable for passing through the guide groove 1331 and the two guide portions 1332 of the corresponding side panel 1330. Specifically, if the sewn joint serves as the starting point for the first headrest strap 1321 or the second headrest strap 1322, the first headrest strap 1321 or the second headrest strap 1322 sequentially passes through the guide portion 1332 at the lower end or front end of the guide slot 1331, the guide slot 1331, and the guide portion 1332 at the upper end or rear end of the guide slot 1331, before being connected to the headrest plate 1800. The side plate 1330 is also provided with a strip-shaped hole 1333 for the backrest strap 1323 to pass through. If the sewn joint on one side of the frame 1100 serves as the starting point for the backrest strap 1323, the backrest strap 1323 sequentially passes through the strip-shaped hole 1333 of the side plate 1330 on the same side as the sewn joint, the strap adjustment device 1900, and the strip-shaped hole 1333 of the side plate 1330 on the opposite side of the sewn joint, before reaching the sewn joint on the other side. In some other embodiments, any suitable structure or element can be used to guide the first headrest strap 1321, the second headrest strap 1322 and the backrest strap 1323, as long as the various parts of the driving member 1320 and the driving member 1320 and other parts of the child carrier 110 do not interfere with each other during operation.

[0276] In this embodiment, the two ends of the backrest strap 1323 for supporting the upper and middle part of the backrest tube 1310 are respectively connected to the fixing plate 1570 of the armrest 1113 of a corresponding one of the two lateral frames 1110, and the two ends of each of the first headrest strap 1321 and the second headrest strap 1322 are respectively connected to the headrest plate 1800 and the corresponding fixing plate 1570. When the rider 1400 pivots relative to the frame 1100 and the seat assembly 1200 drives the backrest assembly 1300 to move along the longitudinal direction F of the frame 1100, since the fixing plate 1570 also moves synchronously along the longitudinal direction F of the frame 1100, the distance between the fixing plate 1570 and the belt adjustment device 1900 provided on the backrest assembly 1300, and the distance between the fixing plate 1570 and the top section 1311 of the backrest assembly 1300 remain unchanged. Accordingly, the angle of the backrest assembly 1300 relative to the seat assembly 1200 remains unchanged, and the angle of the headrest 1800 relative to the backrest assembly 1300 also remains unchanged. When the inclination angle of the backrest assembly 1300 is adjusted to, for example, switch the child carrier 110 from a sitting position to a lying position, the belt adjustment device 1900 releases at least a portion of the backrest belt 1323 contained therein, so that the effective length of the backrest support of the driving member is extended, thereby allowing the backrest assembly 1300 to pivot rearward relative to the seat assembly 1200 to increase the inclination angle of the backrest assembly 1300 until the backrest assembly 1300 is substantially parallel to the seat assembly 1200. At the same time, as the backrest assembly 1300 pivots rearward relative to the seat assembly 1200, the distance between the fixing plate 1570 and the top section 1311 of the backrest assembly 1300 increases. Since the lengths of the first headrest strap 1321 and the second headrest strap 1322 remain unchanged, the first headrest strap 1321 and the second headrest strap 1322 pull the top of the headrest plate 1800, causing the headrest plate 1800 to pivot relative to the backrest assembly 1300 in a direction from the head support surface toward the back support surface until the headrest plate 1800 is substantially perpendicular to the backrest assembly 1300. In this way, in the lying-flat position, the headrest plate 1800 can act as a head stop to prevent the head of a child lying flat in the child carrier 110 from sliding out or protruding from the child carrier 110.

[0277] It can be understood that the configuration related to the headrest and the straps provided in this embodiment is also applicable to the child carriers in the first to fourth embodiments or other similar embodiments.

[0278] Referring to FIG. 28 , in this embodiment, a reinforcing rod 1115 extending generally in the transverse direction is disposed between the two lateral frames 1110 of the vehicle frame 1100. The two ends of the reinforcing rod 1115 are fixedly connected to the two lateral frames 1110. Specifically, one end of the reinforcing rod 1115 may be fixedly connected to the lower portion of the armrest 1113 of one of the lateral frames 1110, while the other end of the reinforcing rod 1115 may be fixedly connected to the lower portion of the armrest 1113 of the other lateral frame 1110. The ends of the reinforcing rod 1115 may be fixedly connected to the lower portion of the armrest 1113 by, for example, welding, bonding, keying, pinning, riveting, or the like. The reinforcing rod 1115 enhances the overall strength of the vehicle frame 1100 and prevents the vehicle frame 1100 from rocking side to side. In particular, it helps prevent the vehicle frame 1100 from rocking violently when a child is rocking in the child carrier.

[0279] It can be understood that the reinforcing rod 1115 provided in this embodiment is also applicable to the child carriers in the first to fourth embodiments or other similar embodiments.

[0280] Sixth embodiment

[0281] A sixth embodiment of the present invention provides a strap adjustment device. As described in the above embodiments, the strap adjustment device can be arranged at the rear side of the backrest of the child carrier. Of course, the strap adjustment device can also be arranged at other suitable locations on the child carrier as long as it is convenient for the user to operate.

[0282] 31 and 32 , the strap adjustment device 1900 includes a first outer cover 1910, a second outer cover 1920, and an inner cover 1930 positioned between the first and second outer covers 1910, 1920. Two holes 1934 are defined on opposite sides of the inner cover 1930 for the backrest strap 1323 to pass through. The strap adjustment device 1900 also includes a reel 1940 rotatable between the inner and second outer covers 1930, 1920, for the backrest strap 1323 (see FIG. 33 ) to be wound around. Both ends of the backrest strap 1323 extend from the reel 1940 and through the holes 1934 to the exterior of the strap adjustment device 1900. Note that in FIG. 33 , the backrest strap 1323 is illustrated schematically only as a line.

[0283] As shown in Figure 33, reel 1940 includes an annular first reel 1940A and a second reel 1940B. First reel 1940A and second reel 1940B are connected by an intermediate connecting portion 1940C, forming a circumferentially extending winding groove 1941 between first reel 1940A and second reel 1940B. First reel 1940A and intermediate connecting portion 1940C together form a receiving hole 1942 within reel 1940. First reel 1940A is also provided with two guide grooves 1945 and 1945'. These two guide grooves 1945 and 1945' can be arranged symmetrically or asymmetrically on first reel 1940A, and their specific positions can be adjusted according to actual needs.

[0284] The strap adjustment device 1900 also includes a spring 1950 positioned within the reel 1940. The spring 1950 is disposed within a mounting hole 1942 within the reel 1940. The strap adjustment device 1900 also includes a connector 1960, which is used to secure the strap adjustment device 1900 to the backrest. For example, the connector 1960 can be positioned on the front side of the backrest plate of the backrest, while the second outer cover 1920 can be positioned on the rear side of the backrest plate. Fasteners, such as screws, can then be sequentially inserted through the connector 1960, the backrest plate, the second outer cover 1920, and the first outer cover 1910 to secure the strap adjustment device 1900 to the backrest. Alternatively, the connector 1960 can be omitted, and the housing of the strap adjustment device 1900 can be secured to the backrest directly using fasteners, such as screws.

[0285] As described in the above embodiment, the backrest strap 1323 is capable of supporting the upper and middle portion of the backrest of the child carrier 110. When the backrest assembly 1300 pivots relative to the seat assembly 1200, the effective backrest support length of the backrest strap 1323 required to support the backrest changes. To ensure that the backrest strap 1323 remains taut, the reel 1940 winds the backrest strap 1323 (e.g., the center portion of the backrest strap 1323) around it and rotates to wind or unwind this portion of the backrest strap 1323 as needed. A winding groove 1941 is provided on the circumferential side of the reel 1940, into which the backrest strap 1323 is wound.

[0286] 9 , the spring spring 1950 is configured to drive the reel 1940 to rotate in a winding direction D1. Thus, the reel 1940 can be driven to rotate in the winding direction D1 by the elastic restoring force of the spring spring 1950, thereby winding the backrest strap 1323 onto the reel 1940. On the other hand, when the reel 1940 rotates in an unwinding direction D2, which is opposite to the winding direction D1, the spring spring 1950 is wound, and the backrest strap 1323 is unwound from the reel 1940. Specifically, the spring spring 1950 is wound and disposed in a receiving hole 1942 within the reel 1940. A first end 1951 of the spring spring 1950 engages with a fixing post 1931 of the inner cover 1930, and a second end 1952 of the spring spring 1950 engages with a slot 1943 on the sidewall of the receiving hole 1942 of the reel 1940.

[0287] To prevent the spring spring 1950 from escaping the mounting hole 1942 of the reel 1940, an auxiliary disk 1970 is disposed outside the mounting hole 1942. Auxiliary disk 1970 is configured to block the spring spring 1950. Furthermore, auxiliary disk 1970 assists in winding the backrest strap 1323. Referring to FIG34 , auxiliary disk 1970 includes a body 1971 and first and second limiting plates 1972, 1973 extending outward from the periphery of body 1971. The first and second limiting plates 1972, 1973 are axially spaced apart to form a limiting passage 1974 through which the backrest strap 1323 passes. Limiting passage 1974 prevents the backrest strap 1323 from slipping off auxiliary disk 1970.

[0288] In this embodiment, the backrest strap 1323 only wraps around half of the outer circumference of the auxiliary tray 1970, and the first limiting piece 1972 and the second limiting piece 1973 are only provided on half of the outer circumference of the auxiliary tray 1970. In other embodiments, the first limiting piece 1972 and the second limiting piece 1973 may also be provided on the entire outer circumference of the auxiliary tray 1970.

[0289] The following will describe in detail the manner in which the backrest strap 1323 is wound around the reel 1940. The backrest strap 1323 enters the housing of the strap adjustment device 1900 through a hole 1934 on the circumferential side of the inner cover 1930, enters the placement hole 1942 through one of the guide slots 1945 on the reel 1940, passes through the limiting channel 1974 of the auxiliary disk 1970, and bypasses the portion of the reel 1940 provided with the first limiting plate 1972 and the second limiting plate 1973, so that the backrest strap 1323 bypasses the placement hole 1942. The backrest strap 1323 then exits the placement hole 1942 through another guide slot 1945' on the reel 1940, is then wound several times in the winding slot 1941 of the reel 1940, and finally exits the housing of the strap adjustment device 1900 through another opening on the opposite circumferential side of the inner cover 1930. By passing the backrest strap 1323 through the limiting channel 1974 of the auxiliary disk 1970 , the tension of the backrest strap 1323 can be increased, thereby improving the stability of the backrest strap 1323 when unwinding from the reel 1940 .

[0290] When adjusting the angle of the backrest assembly 1300 relative to the seat assembly 1200 to switch the child carrier 110 from a lying-flat position to a sitting-up position, the effective backrest support length of the backrest strap 1323 needs to be shortened. The reel 1940 is capable of winding up any slack in the backrest strap 1323, thereby allowing the spring 1950 to rotate the reel 1940 in a winding direction D1. When the backrest assembly 1300 is pivoted to a position substantially perpendicular to the seat assembly 1200 (i.e., when the backrest assembly 1300 is in an upright position), the majority of the backrest strap 1323 (e.g., the backrest strap 1323) is wound around the reel 1940, with only a small portion remaining protruding from the reel 1940 and secured to the fixing plate 1570. At this point, the reel 1940 can no longer rotate in the winding direction D1.

[0291] When adjusting the angle of the backrest assembly 1300 relative to the seat assembly 1200 to switch the child carrier 110 from a sitting position to a lying position, the effective backrest support length of the backrest strap 1323 needs to be extended. When the backrest assembly 1300 pivots to be substantially parallel to the seat assembly 1200 (i.e., when the backrest assembly 1300 is in a horizontal position), the majority of the backrest strap 1323 (e.g., the backrest strap 1323) unwinds from the reel 1940, leaving only a small portion located on the reel 1940. At this point, the reel 1940 is unable to rotate in the unwinding direction D2. Furthermore, the unwinding of the backrest strap 1323 from the reel 1940 causes the reel 1940 to rotate in the unwinding direction D2, thereby tightening the spring 1950 located within the reel 1940.

[0292] 32, 33, 37 and 38, a ratchet 1944 that rotates coaxially is provided on the reel 1940, and a pawl 1990 that cooperates with the ratchet 1944 is further provided in the strap adjusting device 1900. The ratchet 1944 is attached to the second disk 1940B of the reel 1940 to achieve unidirectional positioning.

[0293] As shown in FIG37 , the rotation of the ratchet 1944 in the unwinding direction D2 is selectively blocked by the pawl 1990, preventing the reel 1940 from rotating in the unwinding direction D2. However, the rotation of the ratchet 1944 in the winding direction D1 is not blocked by the pawl 1990. When the rotation of the ratchet 1944 on the reel 1940 in the unwinding direction D2 is blocked by the pawl 1990, the reel 1940 is also unable to rotate in the unwinding direction D2. The strap adjustment device 1900 is locked, and the ratchet 1944 can only rotate in the winding direction D1, allowing the backrest assembly 1300 to freely pivot to a desired position toward the upright position and remain in this desired position, but cannot pivot toward the horizontal position.

[0294] As shown in FIG38 , when the pawl 1990 moves to the unlocked position and the rotation of the ratchet 1944 on the reel 1940 in the unwinding direction D2 is no longer blocked by the pawl 1990, the strap adjusting device 1900 is in the unlocked state. The ratchet 1944 can rotate in both the winding direction D1 and the unwinding direction D2, allowing the backrest assembly 1300 to pivot to a desired position, not only toward the upright position but also toward the horizontal position. After the backrest assembly 1300 pivots to the desired position, either toward the upright position or toward the horizontal position, as long as the pawl 1990 is returned to the locked position shown in FIG37 , the rotation of the ratchet 1944 on the reel 1940 in the unwinding direction D2 is again blocked by the pawl 1990, and the backrest assembly 1300 will remain in the desired position. Through the cooperation between the ratchet 1944 and the pawl 1990 , the strap adjustment device 1900 can achieve one-way locking and one-way unlocking of the pivoting of the backrest assembly 1300 toward the horizontal position.

[0295] It can be understood that the above description is an embodiment in which the rotation of the ratchet wheel 1944 along the unwinding direction D2 is selectively blocked by the pawl 1990 , but the present invention is not limited thereto.

[0296] In this embodiment, the pawl 1990 is configured to move between a locked position and an unlocked position. In the locked position, the pawl 1990 blocks the backrest assembly 1300 from pivoting relative to the seat assembly 1200, while in the unlocked position, the pawl 1990 allows the backrest assembly 1300 to pivot relative to the seat assembly 1200.

[0297] 37 and 38 , a connection side 1991 of pawl 1990 is pivotally connected to a connection portion 1932 on inner cover 1930, allowing a free side 1992 of pawl 1990 to pivot relative to the connection portion 1932. As shown in FIG37 , when free side 1992 of pawl 1990 is pivoted to the locked position, a latching portion 1993 of free side 1992 of pawl 1990 engages with the ratchet teeth on ratchet wheel 1944, thereby preventing ratchet wheel 1944 from rotating in the unwinding direction D2. As shown in FIG38 , when free side 1992 of pawl 1990 is pivoted to the unlocked position, a latching portion 1993 of pawl 1990 disengages from the ratchet teeth on ratchet wheel 1944, thereby allowing ratchet wheel 1944 to rotate in the unwinding direction D2. In some other embodiments, the pawl 1990 may be configured to slide up and down along a slide rail (not shown) on the inner cover 1930 so that the engaging portion 1993 of the pawl 1990 can engage or disengage with the ratchet teeth on the ratchet 1944. At this time, the movement of the pawl 1990 is a sliding movement.

[0298] The strap adjustment device 1900 further includes an elastic member 1980 configured to bias the pawl 1990 toward the locked position, thereby causing the pawl 1990 to tend to block the ratchet wheel 1944 from rotating in the unwinding direction D2. In this embodiment, the elastic member 1980 is a torsion spring disposed around a connection side 1991 of the pawl 1990. The first end 1981 of the elastic member 1980 abuts the inner upper wall of the inner cover 1930, and the second end 1982 of the elastic member 1980 is connected to a protrusion 1994 in the middle of the pawl 1990. In other embodiments, the elastic member 1980 may take other forms, such as a tension spring, a compression spring, an elastic cord, or an elastic body, as long as it can bias the pawl 1990 toward the locked position.

[0299] When the user adjusts the backrest assembly 1300 of the child carrier 110 to pivot toward a horizontal position, the reel 1940 will rotate in the unwinding direction D2. However, the pawl 1990, under the action of the elastic member 1980, tends to block the ratchet 1944 and the reel 1940 from rotating in the unwinding direction D2. Therefore, the user needs to first drive the pawl 1990 to move it to the unlocked position and keep the pawl 1990 in the unlocked position (i.e., so that the strap adjustment device 1900 changes from a locked state to a unlocked state and remains in the unlocked state) before pulling the backrest assembly 1300 of the child carrier 110 to pivot toward a horizontal position.

[0300] 32 , in this embodiment, the operating mechanism for driving pawl 1990 to place strap adjusting device 1900 in the unlocked state includes a handle 1901 and a driving member 1902. A first end of driving member 1902 is connected to a free side 1992 of pawl 1990, and a second end of driving member 1902 is connected to handle 1901. A guide hole 1911 and a through hole 1933 are respectively provided on first outer cover 1910 and inner cover 1930 for driving member 1902 to pass through. Guide hole 1911 on first outer cover 1910 and through hole 1933 on inner cover 1930 are formed at locations corresponding to pawl 1990, facilitating connection of driving member 1902 with pawl 1990 by passing through through hole 1933 and / or guide hole 1911. When the handle 1901 is pulled by the user, the pulling force is transmitted to the pawl 1990 through the driving member 1902 , causing the pawl 1990 to move toward the unlocking position.

[0301] In this embodiment, the backrest assembly 1300 can be maintained in any desired position between the upright position and the horizontal position through the cooperation of the pawl 1990 and the ratchet 1944, and unless the user pulls the handle 1901 to place the strap adjustment device 1900 in the unlocked state, the backrest assembly 1300 cannot be further pivoted toward the horizontal position because the rotation of the ratchet 1944 along the unwinding direction D2 is blocked by the pawl 1990 (see Figure 37), and the effective length of the backrest support of the backrest strap 1323 cannot be further extended.

[0302] However, when the strap adjusting device 1900 is in the locked state, the pawl 1990 does not prevent the ratchet wheel 1944 from rotating in the winding direction D1. When the ratchet wheel 1944 rotates in the winding direction D1, the pawl 1990 slides over the back of the teeth of the ratchet wheel 1944. Due to the bias of the elastic member 1980 on the pawl 1990, the rotation of the ratchet wheel 1944 in the winding direction D1 will encounter a certain resistance.

[0303] When a child's back is leaning or lying on the backrest of the child carrier 110, and the backrest assembly 1300 is in a non-upright position (i.e., horizontal, or any position deviating from the upright position toward horizontal), the backrest strap 1323 initially wound on the reel 1940 is at least partially stretched out of the strap adjustment device 1900, and the spring spring 1950 positioned within the reel 1940 is wound and elastically deformed. In this embodiment, the spring spring 1950 is configured to have an elastic restoring force (also known as a rewinding force) that is greater than the resistance exerted by the pawl 1990 on the rotation of the ratchet wheel 1944 in the winding direction D1. When the child stands up and leaves the child carrier 110, the elastic restoring force of the spring spring 1950 drives the reel 1940 to rotate in the winding direction D1, causing the backrest strap 1323 to be rewound on the reel 1940, thereby shortening the effective backrest support length of the backrest strap 1323. In this way, the backrest assembly 1300 can automatically return to the upright position without being pushed by the user, so that the child carrier 110 can be folded more conveniently and with less effort.

[0304] Furthermore, the weight of other components of the child carrier 110 exerting on the strap adjustment device 1900 may be greater than the elastic restoring force of the spring 1950. However, even in this situation, the user only needs to slightly push the backrest assembly 1300 upward to eliminate the weight of other components of the child carrier 110 from affecting the strap adjustment device 1900. The elastic restoring force of the spring 1950 will then drive the reel 1940 to rotate in the winding direction D1, causing the backrest assembly 1300 to automatically return to its upright position. Therefore, in this situation, when the child carrier 110 needs to be folded, even if the child carrier 110 is in a flat position, the user only needs to slightly push the backrest of the child carrier 110 upward once, and the backrest assembly 1300 will automatically return to its upright position, saving effort and facilitating folding.

[0305] It can be understood that the strap adjustment device provided in this embodiment can be applied to the child carriers in the first to fifth embodiments or other similar embodiments.

[0306] Seventh embodiment

[0307] Figures 39 and 40 illustrate a child carrier according to a seventh embodiment of the present invention in forward-facing and rearward-facing modes, respectively. The child carrier includes a frame 210, a rider 220 pivotally mounted on the frame 210, a movable support 2110 movably mounted on the frame 210, and a seat 2700 mounted on the movable support 2110. For ease of illustration, only portions of the interior of the seat 2700, such as the backrest and leg supports, are schematically shown in the figures, and the seat pan of the seat 2700 is not shown. The child carrier also includes a front armrest 2130, which is primarily intended for a child in the child carrier to grasp for balance or support.

[0308] The frame 210 includes a support rod 2120 extending generally in the longitudinal direction of the child carrier. The movable bracket 2110 is slidably connected to the support rod 2120. The rider 220 is pivotally connected to the support rod 2120, allowing the rider 220 to rotate relative to the frame 210. For example, the rider 220 can rotate from a first angular position shown in FIG. 39 to a second angular position shown in FIG. 40. As shown in FIG. 39, when the rider 220 is in the first angular position, the rider 220 is generally located at the rear of the child carrier, and the child carrier is in a forward-facing mode. In this case, the forward direction of travel of the child carrier is the direction indicated by direction F1 in FIG. 39, which corresponds to the front of the child carrier. As shown in FIG. 40, when the rider 220 is in the second angular position, the rider 220 is generally located at the front of the child carrier, and the child carrier is in a rear-facing mode. At this time, the forward direction of the child carrier is the direction indicated by direction F2 in FIG. 40 , which corresponds to the rear of the child carrier. Herein, the rotation of the rider 220 from the first angular position to the second angular position, or vice versa, is referred to as a reversal of the rider 220. This reversal of the rider 220 causes the child carrier to switch between a forward-facing mode and a rearward-facing mode.

[0309] The rotation of the rider 220 relative to the frame 210 drives the movable support 2110 to slide along the support rod 2120. That is, when the rider 220 changes direction, the movable support 2110 is driven to move relative to the frame. For example, when the child carrier switches from the forward-facing mode shown in FIG. 39 to the rearward-facing mode shown in FIG. 40 , the movable support 2110 moves relative to the frame 210 along the longitudinal direction of the child carrier (specifically, direction F1 in FIG. 39 ), causing the seat 2700 mounted on the movable support 2110 to move from the first position shown in FIG. 39 to the second position shown in FIG. 40 . When the child carrier switches from the rearward-facing mode shown in FIG. 40 to the forward-facing mode shown in FIG. 39 , the movable support 2110 moves relative to the frame 210 along the longitudinal direction of the child carrier (specifically, direction F2 in FIG. 40 ), causing the seat 2700 to return from the second position shown in FIG. 40 to the first position shown in FIG. 39 . 40 , when the seat 2700 moves to the second position, the seat 2700 is closer to the front armrest 2130. In this case, compared with the case shown in FIG39 , the seating space for the child is compressed, thereby reducing the seating comfort of the child.

[0310] In this embodiment, the front armrest 2130 is movably connected to the vehicle frame 210. Furthermore, the front armrest 2130 is configured to be adjustable so that the distance between the front armrest 2130 and the seat 2700 can be adjusted when the seat 2700 is in the first position or the second position. For example, when the child carrier switches from a forward-facing mode to a rearward-facing mode, the movable bracket 2110 is adapted to move relative to the frame 210 along the longitudinal direction of the child carrier so as to move the seat 2700 from a first position to a second position. When the seat 2700 moves to the second position, the front armrest 2130 can be adjusted to increase the distance between the front armrest 2130 and the seat 2700. When the child carrier switches from a rearward-facing mode to a forward-facing mode, the movable bracket 2110 is adapted to move relative to the frame 210 along the longitudinal direction of the child carrier so as to return the seat 2700 from the second position to the first position. When the seat 2700 moves to the first position, the front armrest 2130 can be adjusted to reduce the distance between the front armrest 2130 and the seat 2700.

[0311] Specifically, in this embodiment, the front armrest 2130 is pivotally connected to the frame 210 so that the angle of the front armrest 2130 relative to the backrest of the seat 2700 is adjustable. When the seat 2700 is in a first position, the front armrest 2130 is adapted to be adjusted to a first angle relative to the backrest. When the seat 2700 is in a second position, the front armrest 2130 is adapted to be adjusted to a second angle relative to the backrest that is different from the first angle, for example, a second angle greater than the first angle. Referring to Figures 39 to 41 , the backrest of the seat 2700 is schematically indicated by reference numeral 2310. For ease of illustration, only the backrest support of the backrest 2710 is shown in Figures 40 and 41 . When the rider 220 rotates to convert the child carrier from forward-facing mode to rear-facing mode, the backrest 2710 moves forward relative to the frame 210 along with the movable bracket 2110. Therefore, when the child carrier is in the position shown in Figure 40, the distance between the front armrest 2130 and the backrest 2710 is reduced compared to the position shown in Figure 39, and the child's seating space is compressed. By adjusting the angle of the front armrest 2130 relative to the seat 2700 to increase the distance between the front armrest 2130 and the backrest 2710, the child's seating space can be expanded.

[0312] For example, as shown in FIG39 , when the child carrier is in the forward-facing mode, the angle of the front armrest 2130 relative to the backrest 2710 is a first angle A. In this case, the front armrest 2130 has a first distance from the backrest 2710. As shown in FIG40 and FIG41 , when the child carrier is in the rearward-facing mode, the angle of the front armrest 2130 relative to the backrest 2710 can be adjusted from the first angle A to a second angle B. The second angle B is greater than the first angle A. In this case, the front armrest 2130 has a second distance from the backrest 2710 that is greater than the first distance. Comparing the two situations shown in FIG40 and FIG41 , it can be seen that when the position of the seat 2700 relative to the movable support 2110 remains unchanged, the distance between the front armrest 2130 and the backrest 2710 when at the second angle B (i.e., the second distance) is greater than the distance between the front armrest 2130 and the backrest 2710 when at the first angle A (i.e., the first distance). FIG42 shows that the seating space of the child carrier is expanded after the distance between the front armrest 2130 and the backrest 2710 is increased.

[0313] In this embodiment, the seating space for children can be changed by adjusting the angle of the front armrest 2130 relative to the backrest 2710. In particular, when the child carrier is converted from a forward-facing mode to a rearward-facing mode, the seating space that is reduced due to the reversal can be expanded.

[0314] Referring to FIG. 43 , in this embodiment, the child carrier further includes an angle adjustment device 2200 for adjusting the angle of the front armrest 2130, specifically, the angle of the front armrest 2130 relative to the seat 2700. The front armrest 2130 is connected to the vehicle frame 210 via the angle adjustment device 2200. It will be appreciated that the child carrier includes two angle adjustment devices 2200, with each end of the front armrest 2130 connected to the vehicle frame 210 via the two angle adjustment devices 2200. The two angle adjustment devices 2200 are fixedly mounted on either side of the vehicle frame 210, with each end of the front armrest 2130 being detachably connected to the two angle adjustment devices 2200, for example. Alternatively, one end of the front armrest 2130 is fixedly connected to one of the angle adjustment devices 2200, while the other end of the front armrest 2130 is detachably connected to the other angle adjustment device 2200. The two angle adjustment devices 2200 have the same structure, and the following description will use one of the angle adjustment devices 2200 as an example.

[0315] Referring to Figures 44 and 45 , the angle adjustment device 20 includes a fixed base 2210, a rotating base 2220, and an angle positioning member 2230. The fixed base 2210 is mounted on the vehicle frame 210. The fixed base 2210 can be mounted to the vehicle frame 210 via a permanent connection method such as welding or bonding, or can be mounted to the vehicle frame 210 via fasteners such as threaded fasteners, pin fasteners, or rivet-like fasteners. Alternatively, the fixed base 2210 can be integrally formed with the portion of the vehicle frame 210 used to mount the fixed base 2210. One end of the rotating base 2220 is rotatably connected to the fixed base 2210, and the other end of the rotating base 2220 is connected to the front armrest 2130. The rotating base 2220 is sleeved on the fixed base 2210 and rotatable along the outer circumference of the fixed base 2210. In this embodiment, the fixed base 2210 is generally cylindrical, and one end of the rotating base 2220 defines a cylindrical cavity that at least partially accommodates the fixed base 2210. One end of the rotating base 2220 is adapted to accommodate the fixing base 2210 in its cylindrical cavity and is rotatable around the fixing base 2210. The front armrest 2130 may be detachably connected to the other end of the rotating base 2220, for example.

[0316] The angle positioning member 2230 is slidably disposed between the fixed base 2210 and the rotating base 2220 relative to the rotating base 2220 and is configured to move between a locked position and a released position. When the angle positioning member 2230 is in the locked position, the rotating base 2220 is restricted from rotating relative to the fixed base 2210. When the angle positioning member 2230 is in the released position, the rotating base 2220 is allowed to rotate relative to the fixed base 2210.

[0317] At least two angular positioning holes 2211 are provided on the outer peripheral surface of the fixing seat 2210 at intervals along the circumferential direction. The angular positioning member 2230 can cooperate with the angular positioning holes 2211 to lock the front armrest 2130 at different angular positions. In this embodiment, the fixing seat 2210 is provided with two angular positioning holes 2211. The cooperation of the angular positioning member 2230 with these two angular positioning holes 2211 can lock the front armrest 2130 in the first angular position shown in Figure 39 or Figure 40 (at this time, the front armrest 2130 has a first angle A relative to the backrest 2710) and the second angular position shown in Figure 41 (at this time, the front armrest 2130 has a second angle B relative to the backrest 2710). Figure 45 shows that when the front armrest 2130 is in a first angular position, the angle positioning member 2230 is engaged with one of the two angular positioning holes 2211. Figure 45 shows that when the front armrest 2130 is in a second angular position, the angle positioning member 2230 is engaged with the other of the two angular positioning holes 2211. It will be understood that in other embodiments, the fixing base 2210 may be provided with more than two angular positioning holes 2211, thereby enabling the front armrest 2130 to be adjusted to more than two angular positions.

[0318] When the angle positioning member 2230 is in the locked position, a portion of the angle positioning member 2230 extends from the rotating seat 2220 and is selectively inserted into one of the two angle positioning holes 2211. At this point, the rotating seat 2220 cannot rotate relative to the fixed seat 2210. When the angle positioning member 2230 is in the released position, the portion of the angle positioning member 2230 exits the selected angle positioning hole 2211 and retracts into the rotating seat 2220. At this point, the rotating seat 2220 can rotate relative to the fixed seat 2210.

[0319] Continuing with reference to Figures 44 to 46, the angle adjustment device 2200 further includes a first elastic member 2240 and an angle adjustment actuator 2250. The first elastic member 2240 is configured to bias the angle positioning member 2230 toward the locked position. The angle adjustment actuator 2250 is configured to be operable to drive the angle positioning member 2230 to move from the locked position to the released position. Specifically, the angle adjustment actuator 2250 is movably disposed in the rotating base 2220. A portion of the angle adjustment actuator 2250 is exposed from the housing of the rotating base 2220, so that a user can operate the angle adjustment actuator 2250 by, for example, pressing, thereby causing the angle adjustment actuator 2250 to move relative to the rotating base 2220. The angle adjustment actuator 2250 has a positioning slot 2251, through which a positioning post 2221 disposed on the rotating base 2220 passes. This slot 2251 limits the range of movement of the angle adjustment actuator 2250 and guides its movement. The angle adjustment actuator 2250 also has a driving bevel 2252, through which a driving post 2231 disposed on the angle positioning member 2230 passes. As the angle adjustment actuator 2250 moves relative to the rotating base 2220, the driving bevel 2252 drives the driving post 2231 along the driving bevel 2252, thereby causing the angle positioning member 2230 to move between a locked position and a released position. A first elastic member 2240 is disposed within the rotating base 2220, with one end abutting the inner wall of the rotating base 2220 and the other end abutting the angle positioning member 2230, thereby tending to move the angle positioning member 2230 toward the locked position.

[0320] The following example describes the process of adjusting the angular position of the front armrest 2130 using the angle adjustment device 2200. When the front armrest 2130 is in the first angular position shown in Figures 39 or 40, the angle positioning member 2230 engages with the angle positioning hole 2211 corresponding to the first angular position, locking the front armrest 2130 in the first angular position. When a user presses the angle adjustment actuator 2250, the movement of the angle adjustment actuator 2250 relative to the rotating base 2220 overcomes the bias applied to the angle positioning member 2230 by the first elastic member 2240, driving the drive post 2231 along the drive bevel 2252, causing the angle positioning member 2230 to move from the locked position to the released position, thereby disengaging from the angle positioning hole 2211 corresponding to the first angular position. After the angle positioning member 2230 disengages from the angle positioning hole 2211 corresponding to the first angular position, the user can rotate the front armrest 2130 and release the angle adjustment actuator 2250. When the rotating base 2220 rotates relative to the fixed base 2210, aligning the angular positioning member 2230 with the angular positioning hole 2211 corresponding to the second angular position, the elastic restoring force of the first elastic member 2240 causes the angular positioning member 2230 to move from the released position to the locked position, thereby engaging with the angular positioning hole 2211 corresponding to the second angular position. At this point, the front armrest 2130 is in the second angular position shown in Figure 41 and is locked in the second angular position. The process of adjusting the front armrest 2130 from the second angular position to the first angular position is similar to the above process and will not be repeated here.

[0321] Eighth embodiment

[0322] Figure 47 shows a child carrier according to an eighth embodiment of the present invention. The eighth embodiment differs from the seventh embodiment primarily in the arrangement of the front armrest and the movable support. Details similar to or identical to the seventh embodiment will not be repeated here.

[0323] One aspect of this embodiment provides a method for adjusting the position of the front armrest that is different from that of the seventh embodiment described above. In this embodiment, the front armrest 2130 is telescopically connected to the vehicle frame 210. Specifically, the child carrier further includes a connecting sleeve 2300 having a first end 2310 and a second end 2320 that are opposite in the axial direction X2 (see Figure 50). The first end 2310 of the connecting sleeve 2300 is fixedly connected to the vehicle frame 210. The first end 2310 of the connecting sleeve 2300 can be mounted to the vehicle frame 210 using fasteners such as threaded fasteners, pin fasteners, rivet-type fasteners, etc., or can be mounted to the vehicle frame 210 using a permanent connection method such as welding or bonding. The end of the front armrest 2130 is slidably disposed on the second end 2320 of the connecting sleeve 2300, so that the end of the front armrest 2130 is telescopic relative to the connecting sleeve 2300. By adjusting the extent to which the end of the front armrest 2130 is extended relative to the connecting sleeve 2300, the distance between the front armrest 2130 and the seat 2700, and in particular, the distance between the front armrest 2130 and the backrest 2710, can be changed, thereby varying the seating space provided by the child carrier. Specifically, for example, when the child carrier switches from forward-facing to rear-facing mode, causing the seat 2700 to move forward relative to the vehicle frame 210, the end of the front armrest 2130 can be extended relative to the connecting sleeve 2300, thereby increasing the seating space for the child.

[0324] It is understood that the child carrier includes two connecting sleeves 2300, which are fixedly mounted on both sides of the vehicle frame 210. The two ends of the front armrest 2130 are slidably mounted on the two connecting sleeves 2300. The two connecting sleeves 2300 have the same structure, and the two ends of the front armrest 2130 also have the same structure. The following description will take one of the connecting sleeves 2300 and the end of the front armrest 2130 connected thereto as an example.

[0325] Referring to Figures 48 to 50 , the front armrest 2130 has an extension 2131 at its end. The extension 2131 is slidably inserted into the second end 2320 of the connecting sleeve 2300, allowing the extension 2131 to be retractable relative to the connecting sleeve 2300. The second end 2320 of the connecting sleeve 2300 has a receiving cavity that accommodates at least a portion of the extension 2131. When the seat 2700 is in the first position, the front armrest 2130 is adapted to be adjusted so that the portion of the extension 2131 extending from the second end 2320 has a first length (see Figure 48 ). In this case, the front armrest 2130 is at a first distance relative to the backrest 2710. When the seat 2700 is in the second position, the front armrest 2130 is adapted to be adjusted so that the portion of the extension 2131 extending from the second end 2320 has a second length different from the first length, for example, a second length greater than the first length (see FIG. 49 ). In this case, the front armrest 2130 is at a second distance relative to the backrest 2710 that is greater than the first distance. In this embodiment, the length of the portion of the extension 2131 extending from the second end 2320 can be adjusted according to user needs, that is, the position of the front armrest 2130 relative to the seat 2700 can be adjusted to change the seating space of the child carrier.

[0326] The extension portion 2131 is provided with a length positioning member 21311, which is configured to move between a locked position and a released position. When the length positioning member 21311 is in the locked position, the extension portion 2131 is restricted from sliding relative to the connecting sleeve 2300. That is, the extension portion 2131 is locked in the receiving cavity of the second end portion 2320 of the connecting sleeve 2300, and the position of the extension portion 2131 relative to the connecting sleeve 2300 remains unchanged. When the length positioning member 2131 is in the released position, the extension portion 2131 is allowed to slide relative to the connecting sleeve 2300. That is, the position of the extension portion 2131 relative to the connecting sleeve 2300 can be changed, thereby at least partially pulling the portion of the extension portion 2131 accommodated in the receiving cavity of the second end portion 2320 of the connecting sleeve 2300 out of the receiving cavity, or at least partially pushing the portion of the extension portion 2131 not accommodated in the receiving cavity into the receiving cavity.

[0327] The extension portion 2131 is provided with a spring piece 21312. One end of the spring piece 21312 is a connecting end, which is fixedly connected to the extension portion 2131. Specifically, the connecting end of the spring piece 21312 is fixedly connected to the extension portion 2131 at a position close to the end of the extension portion 2131. The other end of the spring piece 21312 is a free end. The length positioning member 21311 is provided on the spring piece 21312 and is located between the connecting end and the free end of the spring piece 21312. The spring piece 21312 is suitable for keeping the length positioning member 21311 in a locked position. The free end of the spring piece 21312 is provided with a length adjustment actuator 21313, and the length adjustment actuator 21313 is configured to be operable to drive the length positioning member 21311 to move from the locked position to the released position.

[0328] Two length positioning holes 2321 are provided on the inner wall of the accommodating cavity at the second end 2320 of the connecting sleeve 2300 at intervals along the axial direction X2. When the length positioning member 21311 is in the locked position, the length positioning member 21311 selectively inserts into one of the two length positioning holes 2321. When the length positioning member 21311 is in the released position, the length positioning member 21311 withdraws from the selected length positioning hole 2321. The cooperation between the length positioning member 21311 and the two length positioning holes 2321 can lock the front armrest 2130 in the first length position shown in FIG. 48 (at this time, the portion of the front armrest 2130 extending from the second end 2320 has a first length) and the second length position shown in FIG. 49 (at this time, the portion of the front armrest 2130 extending from the second end 2320 has a second length). Figure 48 shows that the front armrest 2130 is in the first length position, with the length positioning member 21311 engaged with the length positioning hole 2321 at the proximal end; Figure 49 shows that the front armrest 2130 is in the second length position, with the length positioning member 21311 engaged with the length positioning hole 2321 at the distal end. It will be understood that in other embodiments, the connecting sleeve 2300 may be provided with more than two length positioning holes 2321, thereby enabling the front armrest 2130 to be adjusted in more than two length positions.

[0329] The following example describes the process of adjusting the length position of the front armrest 2130 by cooperating with the extension portion 2131 of the front armrest 2130 and the connecting sleeve 2300. When the front armrest 2130 is in the first length position shown in Figure 57, the length positioning member 21311 engages with the length positioning hole 2321 located at the proximal end, locking the front armrest 2130 in the first length position. The user presses the length adjustment actuator 21313, which drives the spring 21312 to move, causing the length positioning member 21311 to move from the locked position to the released position, thereby disengaging from the length positioning hole 2321 located at the proximal end. After the length positioning member 21311 is disengaged from the length positioning hole 2321 located at the proximal end, the user can pull the front armrest 2130 outward relative to the connecting sleeve 2300 and release the length adjustment actuator 21313. When the extension 2131 moves relative to the second end 2320 of the connecting sleeve 2300, aligning the length positioning member 21311 with the distal length positioning hole 2321, the elastic restoring force of the spring 21312 causes the length positioning member 21311 to move from the release position to the locked position, thereby engaging with the distal length positioning hole 2321. At this point, the front armrest 2130 is in the second length position shown in Figure 49 and is locked in the second length position. The process of adjusting the front armrest 2130 from the second length position to the first length position is similar to the above process and will not be repeated here.

[0330] Another aspect of this embodiment provides a different control method for controlling the movement of the movable support than that of the seventh embodiment. Referring to Figure 51 , similar to the seventh embodiment, the child carrier according to this embodiment includes a frame 210, a rider 220 pivotally mounted on the frame 210, a movable support 2110 slidably mounted on the frame 210, and a seat 2700 mounted on the movable support 2110. The rider 220 is rotatable relative to the frame 210 to switch the child carrier between forward-facing and rear-facing modes. Unlike the seventh embodiment, the movable support 2110 is adjustable to selectively move forward or rearward relative to the frame 210 along the longitudinal direction of the child carrier, independent of the movement of the rider 220. In other words, rotation of the rider 220 relative to the frame 210 does not drive movement of the movable support 2110 relative to the frame 210. After the rider 220 changes direction, the movement of the movable support 2110 relative to the frame 210 can be adjusted independently. Specifically, when the child carrier is switched from the forward-facing mode to the rear-facing mode, the movable bracket 2110 is adapted to be adjusted to move forward relative to the vehicle frame 210 along the longitudinal direction of the child carrier. When the child carrier is switched from the rear-facing mode to the forward-facing mode, the movable bracket 2110 is adapted to be adjusted to move rearward relative to the vehicle frame along the longitudinal direction of the child carrier.

[0331] In this embodiment, the child carrier further includes a movement adjustment device 2400. The movement adjustment device 2400 can be operated by the user to adjust the position of the movable bracket 2110 on the vehicle frame 210 relative to the vehicle frame 210. Referring to Figure 52, the vehicle frame 2110 includes two support rods 2120 located on the left and right sides, and the two movable brackets 2110 are slidably connected to a corresponding one of the two support rods 2120. Accordingly, the child carrier includes two movement adjustment devices 2400, which are configured to respectively limit and allow the movement of the two movable brackets 2110 relative to the vehicle frame 210. The movable bracket includes a sliding sleeve 2111 and a movable bracket body 2112. The sliding sleeve 2111 is slidably mounted on the support rod 2120. The movable bracket body 2112 is fixed to the sliding sleeve 2111 and is suitable for mounting the seat 2700. The seat plate can be mounted on the movable bracket body 2112 by fasteners such as threaded fasteners, pin fasteners, rivet-type fasteners, etc., and can also be mounted on the movable bracket body 2112 by permanent connection methods such as welding, bonding, etc.

[0332] 53 to 55 , the movable adjustment device 2400 includes a locking member 2410. The locking member 2410 is configured to be movable between a locked position and a released position. When the locking member 2410 is in the locked position (as shown in FIG. 54 ), the movable bracket 2110 is restricted from moving relative to the vehicle frame 210. When the locking member 2410 is in the released position (as shown in FIG. 55 ), the movable bracket 2110 is allowed to move relative to the vehicle frame 210. Furthermore, the locking member 2410 has an engaged state and a released state. When the locking member 2410 is in the engaged state, the locking member 2410 remains in the locked position. When the locking member 2410 is in the released state, the locking member 2410 automatically returns to the released position.

[0333] The sliding sleeve 2111 has a sliding channel 21111 through which the support rod 2120 passes. The support rod 2120 is inserted into the sliding sleeve 2111 via the sliding channel 21111, allowing the sliding sleeve 2111 to slide along the support rod 2120. The locking member 2410 is movably disposed on the sliding sleeve 2111 relative to the sliding sleeve 2111. When the locking member 2410 is moved to the locked position, the sliding of the sliding sleeve 2111 relative to the support rod 2120 is restricted. When the locking member 2410 is moved to the unlocked position, the sliding of the sliding sleeve 2111 relative to the support rod 2120 is permitted. The sliding sleeve 2111 is provided with a mounting seat 21112. The mounting seat 21112 has an inner cavity extending through both ends of the mounting seat 21112, and the inner cavity of the mounting seat 21112 is connected to the sliding channel 21111. The locking member 2410 is mounted on the mounting seat 21112 and is movable relative to the mounting seat 21112.

[0334] The locking member 2410 includes a locking portion 2411 and an operating portion 2412 fixedly connected to the locking portion 2411. The locking portion 2411 is disposed within the inner cavity of the mounting seat 21112, and the operating portion 2412 is sleeved within the mounting seat 21112. The operating portion 2412 has a receiving cavity 24121 for receiving at least a portion of the mounting seat 21112. A flange is provided on the outer periphery of the end of the mounting seat 21112 facing the operating portion 2412. A plurality of protrusions 24122 are provided on the upper edge of the inner wall of the receiving cavity 24121 of the operating portion 2412. When the locking member 2410 is mounted on the mounting seat 21112, at least a portion of the mounting seat 21112 is located within the receiving cavity 24121. The protrusions 24122 interfere with the flange 211121, thereby preventing the locking member 2410 from being detached from the mounting seat 21112.

[0335] The locking portion 2411 has a snap joint 24111, which is adapted to pass through the inner cavity of the mounting seat 21112 into the sliding channel 21111 and engage with the support rod 2120 in the sliding channel 21111, thereby limiting the sliding movement of the sliding sleeve 2111 relative to the support rod 2120. The outer peripheral surface of the support rod 2120 is provided with a plurality of movable positioning holes 2121 spaced apart along the longitudinal direction of the child carrier. In this embodiment, the support rod 2120 is provided with three movable positioning holes 2121. In other embodiments, the support rod 2120 may be provided with two movable positioning holes 2121, or more than three movable positioning holes 2121. It will be understood that the number of movable positioning holes 2121 can be set according to actual needs. When the locking member 2410 is in the locking position, a portion of the locking portion 2410 (including a portion of the card joint 24111) is selectively inserted into one of the movable positioning holes 2121, and when the locking member 2410 is in the unlocking position, the portion of the locking member 2410 withdraws from the selected movable positioning hole 2121.

[0336] The locking member 2410 is configured to be switched between an engaged state and a released state by rotating the locking member 2410. Specifically, the clamping joint 24111 of the locking portion 2411 is configured to be adapted to pass through the movable positioning hole 2121 and is configured to be engaged with the movable positioning hole 2121 by rotating the clamping joint 24111, and also to be disengaged from the movable positioning hole 2121 by rotating the clamping joint 24111. In this embodiment, the clamping joint 24111 has a generally elliptical radial cross-section. The movable positioning hole 2121 has a shape that is substantially the same as the radial cross-section of the clamping joint 24111, and its size is slightly larger than that of the clamping joint 24111. The orientation of the card connector 24111 can be adjusted by rotating the locking member 2410 so that the card connector 24111 can enter and pass through the movable positioning hole 2121. After the card connector 24111 passes through the movable positioning hole 2121, the card connector 24111 can be rotated by a certain angle, for example, 90 degrees, so that the card connector 24111 is locked to the movable positioning hole 2121 and cannot be disengaged from the movable positioning hole 2121. It is understood that the card connector 24111 and the movable positioning hole 2121 matched therewith can be of any other shape, as long as the card connector 24111 can be engaged with and disengaged from the movable positioning hole 2121 by rotating the card connector 24111.

[0337] In this embodiment, the movable adjustment device 2400 further includes a second elastic member 2420 configured to bias the locking member 2410 toward the unlocked position. Specifically, the second elastic member 2420 is disposed in the receiving cavity 24121 of the operating portion 2412. One end of the second elastic member 2420 abuts the bottom wall of the inner cavity of the mounting seat 21112 of the sliding sleeve 2111, while the other end of the second elastic member 2420 abuts the bottom wall of the receiving cavity 24121. When the locking member 2410 in the locked position is switched from the engaged state to the released state, that is, when the latch joint 24111 is able to disengage from the movable positioning hole 2121, the elastic restoring force of the second elastic member 2420 causes the locking member 2410 to move from the locked position to the unlocked position. As mentioned above, due to the interference between the protrusion 24122 and the flange 211121 , the locking member 2410 can be prevented from being detached from the mounting seat 21112 under the action of the elastic restoring force of the second elastic member 2420 .

[0338] The following describes the process of unlocking the movable bracket 2110 in conjunction with Figures 56 and 57. As shown in Figure 56, the locking member 2410 is in the locked position. The clamping joint 24111 of the locking member 2410 passes through the movable positioning hole 2121 and is clamped to the movable positioning hole 2121. At this time, the locking member 2410 is in the clamping state. When the locking member 2410 is in the clamping state, the locking member 2410 remains in the locked position, and the sliding sleeve 2111 cannot slide relative to the support rod 2120. Accordingly, the movable bracket 2110 is restricted from moving relative to the support rod 2120. When the user rotates the operating portion 2412 of the locking member 2410, causing the locking member 2410 to rotate as a whole, for example, 90 degrees, the locking member 2410 is in the released state, and the clamping joint 24111 will be able to disengage from the movable positioning hole 2121. Under the elastic restoring force of the second elastic member 2420, the latch 24111 withdraws from the movable positioning hole 2121, allowing the locking member 2410 to move from the locked position to the unlocked position, as shown in FIG57 . When the locking member 2410 is in the unlocked position, the sliding sleeve 2111 can slide relative to the support rod 2120, thereby allowing the movable bracket 2110 to move relative to the support rod 2120. According to the movable adjustment device 2400 of this embodiment, when the movable bracket 2110 is locked by the locking member 2410, the movable bracket 2110 can be unlocked by simply rotating the locking member 2410 90 degrees.

[0339] By moving the adjustment device 2400 to unlock the movable bracket 2110 and moving the movable bracket 2110 to a suitable position relative to the frame 210 so that the seat 2700 installed on the movable bracket 2110 has a suitable seating space, the movable bracket 2110 can be locked by simply pressing the locking piece 2410 in the direction and rotating it 90 degrees.

[0340] Continuing with reference to Figures 52 to 57, the movable adjustment device 2400 further includes a stop pin 2430. One end of the stop pin 2430 is fixedly connected to the sliding sleeve 2111, and the other end of the stop pin 2430 is slidably disposed within the support rod 2120. The support rod 2120 defines a stop slot 2122 extending in the longitudinal direction of the child carrier, through which the stop pin 2430 passes. The stop slot 2430 is configured to cooperate with the stop pin 2430 to limit the range of movement of the movable bracket 2110 relative to the vehicle frame 210.

[0341] The movable adjustment device 2400 also includes a guide 2440 and a slider 2450. The guide 2440 is fixedly arranged in the support rod 2120 and is provided with a slide groove 2441 corresponding to the limiting groove 2430. The guide 2440 is mounted on the inner wall of the support rod 2120 via a fastener 2442. When the guide 2440 is mounted on the inner wall of the support rod 2120, the limiting groove 2430 is approximately located in the center portion of the slide groove 2441. The slider 2450 is fixedly connected to the other end of the limiting pin 2430 and is slidably arranged in the slide groove 2441. The movement of the limiting pin 2430 along the limiting groove 2122 drives the slider 2450 to slide along the slide groove 2441. The movement adjustment device 2400 also includes two third elastic members 2460, respectively disposed at either end of the slider 2450, and adapted to bias the slider 2450 in two opposing directions in the longitudinal direction of the child carrier. Specifically, one end of each third elastic member 2460 abuts against an end surface of the slider 2450, and the other end abuts against an end wall of the slide groove 2441. The elastic force exerted by the two third elastic members 2460 on the slider 2450 can mitigate, or even prevent, the impact of the stop pin 2430 on the end wall of the stop groove 2122 during its sliding motion relative to the stop groove 2122.

[0342] It should be understood that the movable support provided in this embodiment can be applied to the seventh embodiment described above to achieve movement of the movable support 2110 relative to the vehicle frame 210. Furthermore, it should be understood that the front armrest provided in the seventh embodiment described above can be applied to this embodiment to replace the front armrest provided in this embodiment. Furthermore, it should be understood that both the front armrest provided in the seventh embodiment described above and the front armrest provided in this embodiment can be applied to any child carrier with a movable seat, as well as any child carrier with a fixed seat.

[0343] Ninth embodiment

[0344] Figures 58 to 61 show a child carrier according to a ninth embodiment of the present invention. The ninth embodiment differs from the above embodiments primarily in the arrangement of the movable bracket, and similarities with the above embodiments are not repeated here.

[0345] Similar to the seventh embodiment described above, the child carrier includes a frame 210, a rider 220 pivotally mounted on the frame 210, and a movable bracket 2110 movably mounted on the frame 210. The movable bracket 2110 is adapted to mount a seat (not shown in Figures 58 to 62). The rider 220 is rotatable relative to the frame 210 to switch the child carrier between a forward-facing mode and a rear-facing mode. As shown in Figures 58 and 60, when the rider 220 is in a first angular position, the rider 220 is generally positioned at the rear of the child carrier, and the child carrier is in the forward-facing mode. At this point, the forward travel direction of the child carrier is the direction indicated by direction F1 in Figure 58, which corresponds to the front of the child carrier. As shown in Figures 59 and 61, when the rider 220 is in a second angular position, the rider 220 is generally positioned at the front of the child carrier, and the child carrier is in the rear-facing mode. At this time, the forward moving direction of the child carrier is the direction indicated by the direction F2 in FIG. 59 , and the direction F2 corresponds to the rear of the child carrier.

[0346] The rotation of the rider 220 relative to the frame 210 drives the movable support 2110 to move relative to the frame 210. For example, when the rider 220 rotates from the first angular position shown in Figures 58 and 60 to the second angular position shown in Figures 59 and 61, the movable support 2110 is driven to move forward relative to the frame 210. When the rider 220 rotates from the second angular position shown in Figures 59 and 61 to the second angular position shown in Figures 58 and 60, the movable support 2110 is driven to move backward relative to the frame 210.

[0347] In this embodiment, the frame 210 includes side armrests 2140. Specifically, the frame 210 includes two side armrests 2140, one on the left and one on the right. The rider 220 is connected to the movable support 2110 at the side armrests 2140. The child carrier also includes a slider 2510, through which the rider 220 is connected to the movable support 2110 at the side armrests 2140. The slider 2510 is connected to the movable support 2110 and is slidably mounted on the side armrests 2140. When the rider 220 rotates relative to the frame 210, causing the slider 2510 to slide relative to the side armrests 2140, the slider 2510 is adapted to drive the movable support 2110 to move relative to the frame 210 along the longitudinal direction of the child carrier. It will be appreciated that the child carrier includes two sliders 2510, each of which is slidably mounted on each of the side armrests 2140. The rotation of the rider 220 relative to the frame 210 can simultaneously drive the two sliding members 2510 to slide relative to the side armrests 2140. The following description will be made by taking one of the sliding members 2510 as an example.

[0348] The slider 2510 can be, for example, in the form of a pin or a rod. A guide slot 2141 is defined in the side armrest 2140, and the slider 2510 passes through and is capable of sliding along the guide slot 2141. When the rider 220 rotates relative to the vehicle frame 210 to switch the child carrier from a forward-facing mode to a rear-facing mode, or vice versa, the slider 2510 is adapted to slide from one end of the guide slot 2141 to the other end of the guide slot 2141. For example, when the rider 220 rotates from the first angular position shown in Figures 58 and 60 to the second angular position shown in Figures 59 and 61 to switch the child carrier from the forward-facing mode to the rear-facing mode, the slider 2510 slides from the rear end of the guide slot 2141 (see Figures 58 and 60) to the front end of the guide slot 2141 (see Figures 59 and 61).

[0349] 62 and 63 , in this embodiment, the rider 220 is provided with a driving member 2610. The driving member 2610 is configured to drive the sliding member 2510 to slide relative to the side armrest 2140 along the guide groove 2141 when the rider 220 rotates relative to the frame 210. Specifically, the sliding member 2510 slides along the guide groove 2141 of the side armrest 2140. The sliding member 2510 has a first end and a second end opposite each other. The first end of the sliding member 2510 is connected to the driving member 2610, and the second end of the sliding member 2510 is connected to the movable bracket 2110 via a transmission member 2520. The driving member 2610 includes a connecting portion 2611 and a driving portion 2612. The connecting portion 2611 is mounted on the rider 220, and the driving portion 2612 is fixed to the connecting portion 2611.

[0350] The driving portion 2612 is formed with a sliding channel 26121, within which the first end of the slider 2510 is slidable. The sliding channel 26121 has a first pushing portion 26122 and a second pushing portion 26123 located at opposite ends of the sliding channel 26121. When the rider 220 rotates relative to the frame 210 to switch the child carrier from a forward-facing mode (as shown in FIG. 58 ) to a rearward-facing mode (as shown in FIG. 59 ), the first pushing portion 26122 is adapted to push the first end of the slider 2510, thereby causing the slider 2510 to slide relative to the side armrest 2140. This causes the slider 2510 to drive the movable bracket 2110 to move forward relative to the frame 2110 along the longitudinal direction of the child carrier (corresponding to direction F1 in FIG. 58 ). When the rider 220 rotates relative to the frame 210 to switch the child carrier from the rearward mode (as shown in FIG. 59 ) to the forward mode (as shown in FIG. 58 ), the second pushing portion 26123 is adapted to push the first end of the sliding member 2510 to drive the sliding member 2510 to slide relative to the side armrest 2140, so that the sliding member 2510 drives the movable bracket 2110 to move backward (corresponding to direction F2 in FIG. 59 ) relative to the frame 2110 along the longitudinal direction of the child carrier.

[0351] The sliding channel 26121 is configured such that, when the rider 220 rotates relative to the frame 210 to switch the child carrier from the forward-facing mode to the rearward-facing mode, the first pushing portion 26122 abuts the first end of the sliding member 2510 only after the rider 220 rotates relative to the frame 210 by a predetermined angle. Furthermore, when the rider 220 rotates relative to the frame 210 to switch the child carrier from the rearward-facing mode to the forward-facing mode, the second pushing portion 26123 abuts the first end of the sliding member 2510 only after the rider 220 rotates relative to the frame 210 by a predetermined angle. Specifically, the sliding channel 26121 is arc-shaped, with its center located on the pivot axis around which the rider 220 rotates about the frame 210. The guide groove 2141 formed in the side armrest 2140 is also arc-shaped and lies on the same circumferential path as the sliding channel 26121.

[0352] The following describes, with reference to Figures 62 and 63 , the process by which the driving member 2610 drives the sliding member 2510 to move. When the child carrier is in the forward-facing mode shown in Figure 62 , the sliding member 2510 is located proximal to the guide groove 2141 of the side armrest 2140, and the second pushing portion 26123 of the sliding channel 26121 abuts the first end of the sliding member 2510. When the rider 220 rotates along the first rotational direction D3 in Figure 62 to switch the child carrier from the forward-facing mode to the rearward-facing mode, the position of the sliding member 2510 initially remains unchanged. The driving member 2612 then slides across the sliding member 2510, causing the sliding member 2510's position in the sliding channel 26121 to change from abutting the second pushing portion 26123 to abutting the first pushing portion 26122. After the sliding member 2510 abuts the first pushing portion 26122, further rotation of the rider 220 in the first rotation direction D3 drives the sliding member 2510 to slide along the guide groove 2141 of the side armrest 2140 from the proximal end of the guide groove 2141 to the distal end of the guide groove 2141. After the sliding member 2510 reaches the distal end of the guide groove 2141, the rider 220 cannot rotate further in the first rotation direction D3, and the rider 220 has completed the direction change.

[0353] The sliding of the sliding member 2510 along the guide groove 2141 drives the movable bracket 2110 to move along the longitudinal direction of the child carrier relative to the frame 210. Therefore, with the help of the sliding member 2510, when the rider 220 changes direction, the seat mounted on the movable bracket 2110 is moved relative to the frame 210.

[0354] With reference to Figures 64 to 68 , the side armrests are removed in Figures 67 and 68 for ease of illustration. In this embodiment, the second end of the sliding member 2510 is connected to the movable support 2110 via a transmission member 2520. One end of the transmission member 2520 is pivotally connected to the second end of the sliding member 2510, and the other end of the transmission member 2520 is hingedly connected to the movable support 2110. The movable support 2110 includes a base 2113 and a side frame 2114 fixed to the base. The side frame 2114 can be fixed to the base 2113 via a permanent connection method such as welding or bonding, or can be fixed to the vehicle frame 210 via fasteners such as threaded fasteners, pin fasteners, or rivet-like fasteners, or can be integrally formed with the base 2113. The top of the side frame 2114 is connected to the sliding member 2510 via the transmission member 2520. Specifically, the top of the side frame 2114 is hingedly connected to the other end of the transmission member 2520. The frame 210 is provided with a fixing block 2150. The side edge of the base 2113 is slidably connected to the fixing block 2150, so that the movable bracket 2110 can slide along the fixing block 2150. Specifically, the fixing block 2150 is provided with a guide groove, and the side edge of the base 2113 is slidably set in the guide groove.

[0355] It should be understood that the front armrests and their adjustment mechanisms provided in the seventh and eighth embodiments can be applied to the child carrier provided in this embodiment, so that after the child carrier is reversed, a suitable seating space can be set by adjusting the front armrests.

[0356] Tenth embodiment

[0357] Figures 69 and 70 illustrate a child carrier according to the tenth embodiment of the present invention in forward-facing and rear-facing modes, respectively. For ease of illustration, the seat is removed. As shown in Figure 69 , the child carrier 310 includes a frame 3100, a rider 3200 pivotally mounted on the frame 3100, and a movable support 3300 slidably mounted on the frame 3100. The frame 3100 includes a front leg 3110 and a rear leg 3120. The front leg 3110 is connected to a front wheel assembly 3111, and the rear leg 3120 is connected to a rear wheel assembly 3121. The frame 3100 also includes a support rod 3130, to which the rider 3200 is pivotally mounted, and to which the movable support 3300 is slidably mounted. The child carrier 310 further includes an armrest 3400, a leg support 3500, a backrest support 3600, and a seat (not shown in Figures 69 and 70) fixed to the movable support 3300. The armrest 3400 is primarily provided for a child placed in the child carrier 310 to grasp for balance or support. The armrest 3400 can be detachably connected to the movable support 3300 so that when the child is placed in the child carrier 310, the armrest 3400 can be removed, making it easier to place the child in the child carrier 310. In this embodiment, the armrest 3400 is in the form of a horizontal bar, with both ends of the armrest 3400 connected to the movable support 3300. In other embodiments, the armrest 3400 can be provided with a dining tray or other type of storage tray.

[0358] In this embodiment, a leg support 3500 is pivotally connected to the movable support 3300 and is used to support the legs of a child placed in the child carrier. The angle of the leg support 3500 relative to the movable support 3300 is adjustable to ensure that the child's legs are comfortably supported. In other embodiments, a leg support may not be provided, or the leg support may be attached to the seat, for example, pivotally connected to the seat pan. In this embodiment, a backrest support 3600 is pivotally connected to the movable support 3300 and may be used to support the seat back panel or simply to support the seat fabric to form a backrest. The angle of the backrest support 3600 relative to the movable support 3300 is adjustable to ensure that the child's back is comfortably supported. In other embodiments, the backrest support 3600 may be attached to the seat. In this embodiment, a canopy support 3700 is also provided on the backrest support 3600 to support the seat canopy. The canopy support member 3700 includes a first canopy support rod 3710 and a second canopy support rod 3720, which is pivotally connected to the first canopy support rod 3710. Rotation of the second canopy support rod 3720 relative to the first canopy support rod 3710 enables the canopy to be deployed and retracted. In this embodiment, the seat can be mounted to the movable bracket 3300 using fasteners such as threaded fasteners, pin fasteners, or rivet-type fasteners. In other embodiments, the seat can be mounted to the movable bracket 3300 using a permanent connection method such as welding or adhesive bonding. In still other embodiments, the seat can be removably mounted to the movable bracket 3300.

[0359] The rider 3200 is rotatable relative to the frame 3100. For example, the rider 3200 can rotate from a first angular position shown in FIG. 69 to a second angular position shown in FIG. 70 . As shown in FIG. 69 , when the rider 3200 is in the first angular position, the rider's 3200 handlebars (not shown in FIG. 69 and FIG. 70 ) are located at the rear of the child carrier 310, and the child carrier 310 is in a forward-facing mode. At this point, the forward travel direction of the child carrier 310 is indicated by direction F1 in FIG. 69 , which corresponds to the front of the child carrier 310. As shown in FIG. 70 , when the rider 3200 is in the second angular position, the rider's 3200 handlebars are located at the front of the child carrier 310, and the child carrier is in a rear-facing mode. At this point, the forward travel direction of the child carrier 310 is indicated by direction F2 in FIG. 70 , which corresponds to the rear of the child carrier 310. Herein, the rotation of the rider 3200 from the first angular position to the second angular position, or vice versa, is referred to as a reversal of the rider 3200. The reversal of the rider 3200 causes the child carrier 310 to switch between the forward-facing mode and the rearward-facing mode.

[0360] The rotation of the rider 3200 relative to the frame 3100 drives the movable bracket 3300 to slide along the support rod 3130. For example, when the rider 3200 rotates from the first angular position shown in FIG. 69 to the second angular position shown in FIG. 70 , the movable bracket 3300 is driven to move from the first position relative to the frame 3100 to the second position. In the second position, the movable bracket 3300 is further away from the rear wheel 3121 in the longitudinal direction (i.e., the front-to-back direction) of the child carrier 310 than in the first position. That is, when the rider 3200 rotates from the first angular position to the second angular position to convert the child carrier 310 from the forward-facing mode to the rear-facing mode, the movable bracket 3300 moves forward relative to the frame 3100 along the longitudinal direction of the child carrier 310. Because the armrests 3400, leg supports 3500, backrest supports 3600, and seat are fixed to the movable support 3300, the armrests 3400, leg supports 3500, backrest supports 3600, roof supports 3700, and seat move forward relative to the vehicle frame 3100 along with the movable support 3300. Accordingly, the center of gravity of the child carrier 310 moves forward relative to the vehicle frame 3100 along the longitudinal direction of the child carrier 310. Furthermore, because the child in the child carrier 310 also moves forward relative to the vehicle frame 3100 along with the movable support 3300, the child's center of gravity also moves forward relative to the vehicle frame 310 along the longitudinal direction of the child carrier 310. Compared to the forward-facing mode, in the rearward-facing mode, the overall center of gravity of the child carrier 310 with the child in it is closer to the front wheels 3111. Since the front wheels 3111 of the child carrier 310 actually serve as rear wheels in the rearward mode, the changed overall center of gravity of the child carrier 310 will be closer to the actual rear wheels in the rearward mode. Therefore, pushing the child carrier 310 in this case will be more labor-saving.

[0361] When the rider 3200 rotates from the second angular position shown in FIG. 70 to the first angular position shown in FIG. 69 , the movable support 3300 is driven to move from the second position relative to the vehicle frame 3100 to the first position. Specifically, when the rider 3200 rotates from the second angular position to the first angular position to convert the child carrier 310 from rearward-facing mode to forward-facing mode, the movable support 3300 moves rearward relative to the vehicle frame 3100 along the longitudinal direction of the child carrier 310. The armrests 3400, leg supports 3500, back supports 3600, and seat also move rearward relative to the vehicle frame 3100 along with the movable support 3300. The change in the center of gravity of the child carrier 310 during the conversion from rearward-facing mode to forward-facing mode is the opposite of the change from forward-facing mode to rearward-facing mode, and will not be further described here.

[0362] Referring to Figures 71 to 74 , the rider 3200 includes two push rods 3210 and a grip 3220. The grips 3220 are each connected to a push rod 3210 at either end. The two push rods 3210 are pivotally connected to the frame 3100 on the left and right sides. The frame 3100 includes two support rods 3130 on the left and right sides. The two push rods 3210 of the rider 3200 are each pivotally connected to a corresponding one of the two support rods 3130. Two movable brackets 3300 are each slidably connected to a corresponding one of the two support rods 3130. Each movable bracket 3300 includes a movable bracket body 3310, a sliding sleeve 3320, and an armrest mounting base 3330. The armrest 3400 is removably mounted to the armrest mounting base 3330 of a corresponding one of the two movable brackets 3300 at either end. The sleeve 3320 is suitable for installing the seat plate of the seat. In this embodiment, the seat plate can be installed on the sleeve 3320 by fasteners such as threaded fasteners, pin fasteners, rivet-type fasteners, etc. In some other embodiments, the seat plate can be installed on the sleeve 3320 by a permanent connection method such as welding, bonding, etc. An elastic support member 3800 is also provided between the sleeves 3320 of the two movable brackets 3300. The elastic support member 3800 can be a spring made of elastic material. The left and right ends of the elastic support member 3800 are respectively fixed to the corresponding sleeve 3320. When the seat plate of the seat is installed on the sleeve 3320, the elastic support member 3800 is located at the bottom of the seat plate. While providing support for the seat, it can also provide shock absorption for the seat, thereby improving riding comfort.

[0363] The sliding sleeves 3320 are slidably mounted on the support rods 3130. In this embodiment, each support rod 3130 includes a substantially straight horizontal portion 3131 extending in the longitudinal direction of the child carrier 310. One end of the horizontal portion 3131 is fixed to the front leg 3110 on the same side as the support rod 3130, and the other end of the horizontal portion 3131 is fixed to the neutral rod 3122 connected to the rear leg 3120 on the same side as the support rod 3130. The sliding sleeves 3320 are slidably mounted on the horizontal portions 3131. As the sliding sleeves 3320 slide relative to the horizontal portions 3131, the sliding sleeves 3320 can move in the longitudinal direction of the child carrier 310.

[0364] The movable support body 3310, the sliding sleeve 3320, and the armrest mounting seat 3330 are fixed relative to each other. When the sliding sleeve 3320 slides relative to the horizontal portion 3131, the movable support body 3310 and the armrest mounting seat 3330 move along with the sliding sleeve 3320. In this embodiment, the movable support body 3310, the sliding sleeve 3320, and the armrest mounting seat 3330 are integrally formed. In other embodiments, the movable support body 3310, the sliding sleeve 3320, and the armrest mounting seat 3330 may be manufactured separately and then fixed together by a permanent connection method such as welding or bonding.

[0365] The rider 3200 is pivotally connected to the frame 3100 via a drive pin 3140. The drive pin 3140 has opposing first and second ends. The first end of the drive pin 3140 is fixedly connected to the rider 3200, while the second end of the drive pin 3140 passes through the support rod 3130 and is fixedly connected to the gear 3150. In this embodiment, the first end of the drive pin 3140 is fixedly connected to the lower end of the push rod 3210 of the rider 3200, allowing the drive pin 3140 to rotate with the rotation of the rider 3200. The second end of the drive pin 3140 passes through the end of the horizontal portion 3131 of the support rod 3130 near the rear foot 3120. The portion of the second end extending from the horizontal portion 3131 is fixedly connected to the center hole of the gear 3150. The drive pin 3140 is rotatable relative to the horizontal portion 3131 of the support rod 3130. When the driver 3200 rotates, the gear 3150 will also rotate synchronously with the driver 3200 due to the driving of the driving pin 3140 fixedly connected between the driver 3200 and the gear 3150.

[0366] The movable support 3300 is provided with a rack 3311. In this embodiment, the rack 3311 is fixedly mounted on the movable support body 3310 of the movable support 3300 and extends in the longitudinal direction of the child carrier 310. Accordingly, the rack 3311 extends in a direction parallel to the extension direction of the horizontal portion 3131 of the support rod 3130. The rack 3311 engages with a gear 3150 rotatably mounted on the horizontal portion 3131. When the gear 3150 rotates, the teeth of the gear 3150 push the rack 3311 in a linear direction. The gear 3150 and the rack 3311 form a rack-and-pinion mechanism that converts the rotational motion of the gear into reciprocating linear motion of the rack.

[0367] In this embodiment, when the gear 3150 rotates due to the rider 3200 changing direction, the rack 3311 moves forward or backward along the longitudinal direction of the child carrier 310. Accordingly, the movable support body 3310, on which the rack 3311 resides, and the sliding sleeve 3320 and armrest mounting base 3330 secured to the movable support body 3310 also move forward or backward along the longitudinal direction of the child carrier 310. At this time, the sliding sleeve 3320 slides forward or backward relative to the horizontal portion 3131 of the support rod 3130. For example, referring to FIG. 75 , when the rider 3200 rotates from a first angular position to a second angular position to switch the child carrier 310 from a forward-facing mode to a rearward-facing mode, the gear 3150 rotates synchronously, and the teeth of the gear 3150 push the rack 3311 to move linearly in the first movement direction F3 (which corresponds to a direction toward the front of the child carrier 310 in the longitudinal direction of the child carrier 310). At this time, the entire movable bracket 3300 including the movable bracket body 3310, the sliding sleeve 3320 and the armrest mounting seat 3330 moves in the first moving direction F3 from the first position relative to the frame 3100 to the second position farther away from the rear wheel 3121 in the longitudinal direction of the child carrier 310.

[0368] Referring to FIG. 76 , in this embodiment, the first end of the drive pin 3140 is secured to the push rod 3210 of the driver 3200 via a locating pin 3213. As shown in FIG. 76 , the push rod 3210 includes a push rod housing 3211, a fixing member 3212, a locating pin 3213, and a push rod plug 3214. The fixing member 3212 is mounted on the push rod housing 3211, with the distal end of the fixing member 3212 sealed by the push rod plug 3214. The fixing member 3212 has a drive pin hole 32121 defined in its side, through which the first end of the drive pin 3140 passes. The fixing member 3212 also has a first locating pin hole 32122 defined in its distal end, through which the locating pin 3213 is inserted. The drive pin hole 32121 communicates with the locating pin hole 32122. The distal end of the fixing member 3212 is provided with two clamping portions 32123, located on opposite sides of the first locating pin hole 32122. The clamping portion 32123 is used to clamp the head 32131 of the positioning pin 3213 to secure the positioning pin 3213. A second positioning pin hole 3141 is defined at the first end of the driving pin 3140 for the positioning pin 3213 to pass through. The first end of the driving pin 3140 can be fixedly connected to the driver 3200 by: inserting the first end of the driving pin 3140 into the driving pin hole 32121 of the fixing member 3212; aligning the second positioning pin hole 3141 of the driving pin 3140 with the first positioning pin hole 32122 of the fixing member 3212; inserting the positioning pin 3213 into the first positioning pin hole 32122 and the second positioning pin hole 3141; and clamping the head 32131 of the positioning pin 3213 using the clamping portion 32123.

[0369] Referring to Figure 77 , a positioning pin 3213 extending through the first end of the drive pin 3140 secures the first end of the drive pin 3140 to the fixing member 3212 of the push rod 3210, thereby maintaining relative stability between the drive pin 3140 and the driver 3200. Rotation of the driver 3200 causes the drive pin 3140 to rotate synchronously. The second end of the drive pin 3140 extends through the support rod 3130 and is fixedly connected to the gear 3150, allowing for rotation on the support rod 3130. When the drive pin 3140 rotates with the driver 3200, the drive gear 3150 rotates synchronously. The second end of the drive pin 3140 can be fixedly connected to the gear 3150 by welding, bonding, keying, pinning, riveting, or the like.

[0370] In this embodiment, the rotation of the rider 3200 causes the gear 3150 to rotate synchronously. This rotation of the gear 3150 causes the rack 3311 to move linearly, thereby driving the entire movable frame 3300 to slide forward or backward relative to the support rod 3130. In this way, the armrests 3400, leg supports 3500, backrest supports 3600, and seat, all fixedly connected to the movable frame 3300, move forward or backward along with the movable frame 3300 in the longitudinal direction of the child carrier 310. Specifically, when the rider 3200 rotates to convert the child carrier 310 from forward-facing mode to rear-facing mode, the armrests 3400, leg supports 3500, backrest supports 3600, and seat move forward along with the movable frame 3300 relative to the vehicle frame 310. This moves the overall center of gravity of the child carrier 310 closer to the actual rear wheels in rear-facing mode, thus reducing the effort required to push the child carrier in rear-facing mode.

[0371] Eleventh embodiment

[0372] Figures 78 and 79 illustrate a child carrier according to an eleventh embodiment of the present invention. The primary differences between this eleventh embodiment and the tenth embodiment are the placement of the armrests and roof supports, as well as the method for driving the movable brackets when the rider changes direction. Similarities with the tenth embodiment are not further elaborated here.

[0373] In this embodiment, the armrest 3400 is detachably connected to the vehicle frame 3100. Accordingly, the movable bracket 3300 does not have an armrest mounting base 3330. In other embodiments, the movable bracket 3300 may be provided with an armrest mounting base 3330, and the armrest 3400 is detachably connected to the armrest mounting base 3330. The specific implementation is similar to the tenth embodiment described above and will not be repeated here.

[0374] In this embodiment, a canopy support 3700, comprising a first canopy support rod 3710 and a second canopy support rod 3720, is disposed on the vehicle frame 3100. The second canopy support rod 3720 is pivotable relative to the first canopy support rod 3710 to enable the canopy to be deployed and retracted. In other embodiments, the canopy support 3700 may be disposed on the backrest support 3600.

[0375] In this embodiment, the rider 3200 is pivotally connected to the frame 3100 via a pivot shaft 3160. The pivot shaft 3160 has opposing first and second ends. The lower end of the push rod 3210 of the rider 3200 is rotatably connected to the first end of the pivot shaft 3160, allowing the push rod 3210 to rotate about the pivot shaft 3160. The lower end of the push rod 3210 is covered with a push rod cover 3215. The push rod cover 3215 is fixed to the lower end of the push rod 3210 and has, for example, an extension portion 32151 extending generally diagonally downward. The second end of the pivot shaft 3160 passes through the end of the horizontal portion 3131 of the support rod 3130, which is adjacent to the rear foot 3120, and passes through the drive member 3180. The push rod 3210 and the drive member 3180 are located on opposite sides of the horizontal portion 3131 of the support rod 3130, respectively. The driving member 3180 is connected to the movable bracket 3300 via, for example, a transmission member 3170 described below. The transmission member 3170 is configured to move in response to the rotation of the driving member 3180 to drive the movable bracket 3300 to slide relative to the frame (3100) along the longitudinal direction of the child carrier (10).

[0376] 82 , the driver body 3181 of the driver 3180 is generally L-shaped, comprising a first portion 31811 and a second portion 31812. The first portion 31811 is angled relative to the second portion 31812. The second end of the pivot shaft 3160 passes through the connection between the first and second portions 31811, 31812, allowing the driver 3180 to rotate about the pivot shaft 3160. The end of the first portion 31811, distal from the connection, is hingedly connected to one end of the transmission member 3170. The other end of the transmission member 3170 is connected to the movable support body 3310 of the movable support 3300 via a fastener 3190, such as a screw, bolt, rivet, or pin. A first transverse connecting portion 3182 is provided on the end of the second portion 31812, distal from the connection, facing the rider 3200. The first transverse connecting portion 3182 extends from the second portion 31812 toward the rider 3200, and its distal end is fixedly connected to the distal end of the extension portion 32151 of the push rod sleeve 3215. When the rider 3200 rotates relative to the vehicle frame 3100, the push rod sleeve 3215 and the driving member 3180 are relatively fixed, and the driving member 3180 rotates synchronously with the rider 3200, thereby driving the movable bracket 3300 to slide along the longitudinal direction of the child carrier 310 relative to the vehicle frame 3100.

[0377] In this embodiment, the first portion 31811, the second portion 31812, and the first transverse connecting portion 3182 are integrally formed. In other words, the entire driving member 3180 is integrally formed. Because the first transverse connecting portion 3182 of the driving member 3180 is fixedly connected to the push rod sleeve 3215 secured to the push rod 3210, the driving member 3180 and the push rod 3210 remain relatively fixed. When the rider 3200 rotates about the pivot axis 3160, the driving member 3180 rotates synchronously about the pivot axis 3160. Because the first portion 31811 of the driving member 3180 is hingedly connected to the transmission member 3170, during its rotation, the first portion 31811 of the driving member 3180 pushes the transmission member 3170, causing it to move. The transmission member 3170, in turn, drives the movable bracket 3300 to move along the horizontal portion 3131 of the support rod 3130. In other embodiments, the driving member 3180 may not include the first transverse connecting portion, but may be provided on the extension portion 32151 of the push rod sleeve 3215. For example, the transverse connecting portion may be integrally formed with the push rod sleeve 3215. One end of the transverse connecting portion extending from the push rod sleeve 3215 is fixedly connected to the driving member 3180. In still other embodiments, the push rod sleeve 3215 and the driving member 3180 may be integrally formed.

[0378] In Figures 78 and 79 , the child carrier 310 is in a forward-facing mode, with the movable support 3300 in a first position relative to the vehicle frame 3100. Referring to Figures 80 and 81 , when the rider 3200 rotates from the first angular position shown in Figures 78 and 79 to the second angular position shown in Figures 80 and 81 , the child carrier 310 is in a rearward-facing mode, with the movable support 3300 in a second position relative to the vehicle frame 3100. Specifically, when the rider 3200 rotates from the first angular position to the second angular position to switch the child carrier 310 from the forward-facing mode to the rearward-facing mode, the driving member 3180 rotates synchronously and drives the transmission member 3160 to move in a second movement direction F4 (which corresponds to a direction toward the front of the child carrier 310 in the longitudinal direction of the child carrier 310). The transmission member 3160 drives the movable support 3300 to move from the first position relative to the vehicle frame 3100 to the second position in the second movement direction F4. In the second position, the movable stand 3300 is further away from the rear wheel 3121 in the longitudinal direction (i.e., the front-to-back direction) of the child carrier 310 than in the first position. That is, when the rider 3200 rotates from the first angular position to the second angular position to switch the child carrier 310 from the forward-facing mode to the rear-facing mode, the movable stand 3300 moves forward relative to the frame 3100 along the longitudinal direction of the child carrier 310. In this way, the leg supports 3500, the back support 3600, and the seat, which are fixedly connected to the movable stand 3300, move forward or rearward along the longitudinal direction of the child carrier 310 with the movable stand 3300. In particular, when the rider 3200 turns to convert the child carrier 310 from the forward mode to the rearward mode, the leg support 3500, the back support 3600, and the seat will move forward relative to the frame 3100 along with the movable bracket 3300, thereby causing the overall center of gravity of the child carrier 310 to be closer to the actual rear wheels in the rearward mode. Therefore, pushing the child carrier in the rearward mode will be more labor-saving.

[0379] Twelfth embodiment

[0380] Figures 83 and 84 illustrate a partial structure of a child carrier according to a twelfth embodiment of the present invention. The primary difference between the twelfth embodiment and the eleventh embodiment lies in the manner in which the movable bracket is driven to move when the rider changes direction. Similarities and similarities with the eleventh embodiment are not further elaborated here.

[0381] In this embodiment, a second transverse connecting portion 32152 is provided at the end of the extension portion 32151 of the push rod sleeve 3215, facing the driver 3180. The second transverse connecting portion 32152 extends from the extension portion 32151 toward the driver 3180, with its distal end fixedly connected to the end of the second portion 31812 of the driver 3180, distal from the connection. The second transverse connecting portion 32152 corresponds to the connecting portion 3182 of the driver 3180 in the eleventh embodiment described above. Both the second transverse connecting portion 32152 and the connecting portion 3182 are used to connect the extension portion 32151 of the push rod sleeve 3215 to the second portion 31812 of the driver 3180, thereby securing the push rod sleeve 3215 and the driver 3180 relative to each other. The extension portion 32151 and the second transverse connecting portion 32152 of the push rod sleeve 3215 are integrally formed. In some other embodiments, the push rod sleeve 3215 may not include the second transverse connecting portion, and the transverse connecting portion may be provided on the second portion 31812 of the driving member 3180 . For example, the transverse connecting portion and the second portion 31812 may be integrally formed.

[0382] The two push rod sleeves 3215, which respectively cover the two support rods 3210 on the left and right sides of the frame 3100, are connected via a connecting rod 3216. Specifically, the connecting rod 3216 has opposing first and second ends. The first end of the connecting rod 3216 is fixedly connected to one end of the two push rod sleeves 3215, where the second transverse connection portion 32152 is connected to the second portion 31812 of the corresponding driving member 3180. The second end of the connecting rod 3216 is fixedly connected to the other end of the two push rod sleeves 3215, where the second transverse connection portion 32152 is connected to the second portion 31812 of the corresponding driving member 3180. The connecting rod 3216 synchronizes the movement of the two push rod sleeves 3215. Therefore, when the two riders 3200 on the left and right sides of the frame 3100 rotate, the two movable brackets 3300, which are slidably connected to the two support rods 3130, can move synchronously.

[0383] Thirteenth embodiment

[0384] Figure 85 shows a partial structure of a child carrier according to a thirteenth embodiment of the present invention. The main difference between the thirteenth embodiment and the eleventh embodiment is the structure of the push rod sleeve and the driving member. The same or similar aspects as the eleventh embodiment are not repeated here.

[0385] In this embodiment, the push rod sleeve 3215 is integrally formed with the driver 3180. Specifically, a transverse connecting portion 3230 is connected between the extension portion 32151 of the push rod sleeve 3215 and the second portion 31812 of the driver body 3181 of the driver 3180. The push rod sleeve 3215, the transverse connecting portion 3230, and the driver 3180 are integrally formed.

[0386] Fourteenth embodiment

[0387] FIG86 shows a child carrier according to a fourteenth embodiment of the present invention. The main difference between the fourteenth embodiment and the first to thirteenth embodiments is that the seat is detachably mounted on the movable bracket. Similarities and differences with the first to thirteenth embodiments are not repeated here.

[0388] In this embodiment, the seat plate 3900 of the chair is removably mounted on the sliding sleeve 3320 of the movable bracket 3300. For example, the seat plate 3900 can be removably mounted on the sliding sleeve 3320 by snapping. Referring to Figures 86 and 87, the sliding sleeve 3320 is provided with a snap-fitting groove 3321, and the seat plate 3900 is provided with a snap-fitting protrusion 3910 that matches the snap-fitting groove 3321. The snap-fitting protrusion 3910 is adapted to be inserted into the snap-fitting groove 3321, thereby tightly snapping together with the snap-fitting groove 3321 and thereby securing the seat plate 3900 to the sliding sleeve 3320. The seat plate 3900 can be removed from the sliding sleeve 3320 by moving the snap-fitting protrusion 3910 so that it disengages from the snap-fitting groove 3321.

[0389] In other embodiments, the engaging groove may be provided on the seat plate, and the engaging protrusion may be provided on the sliding sleeve. In other embodiments, other methods may be used to secure the seat plate 3900 to the sliding sleeve 3320, as long as a removable connection between the seat plate 3900 and the sliding sleeve 3320 is achieved. For example, the removable connection between the seat plate 3900 and the sliding sleeve 3320 may be achieved through a tenon joint, a snap joint, a bolt joint, or the like.

[0390] Fifteenth embodiment

[0391] Figure 88 shows a child carrier according to a fifteenth embodiment of the present invention. The fifteenth embodiment differs from the fourteenth embodiment in that the backrest support is provided on the seat. Similarities and differences with the fourteenth embodiment are not repeated here.

[0392] In this embodiment, a backrest support 3600 is pivotally connected to a seat pan 3900 of the seat, forming the seat's backrest support portion. The seat pan 3900 is removably mounted to the sliding sleeve 3320 of the movable bracket 3300 in the same manner as in the fourteenth embodiment. Thus, the seat, including the backrest support 3600 and the seat pan 3900, is removable from the child carrier 310 as a whole.

[0393] In this embodiment, the canopy support 3700 is provided on the vehicle frame 3200. In other embodiments, the canopy support 3700 may be pivotally connected to the side panels of the backrest support 3600, so that the canopy support 3700 can be installed on or removed from the child carrier 310 together with the seat. Furthermore, in other embodiments, the armrest 3400 may also be provided on the seat, so that the armrest 3400 can be installed on or removed from the child carrier 310 together with the seat.

[0394] Sixteenth embodiment

[0395] Figures 89 to 98 illustrate a child carrier according to a sixteenth embodiment of the present invention. The main difference between the sixteenth embodiment and the tenth embodiment is the way the movable bracket is driven to move when the rider changes direction. Similarities with the tenth embodiment are not repeated here.

[0396] Referring to Figures 89 and 90 , similar to the tenth embodiment described above, the rider 3200 is pivotally connected to the frame 3100 via a drive pin 3140. The backrest support 3600 is pivotally connected to the movable support body 3310 of the movable support 3300, and the sliding sleeve 3320 of the movable support 3300 is slidably mounted on the support rod 3130. In this embodiment, a push member 3340 is connected between the drive pin 3140 and the movable support body 3310. One end of the push member 3340 is connected to the rider 3200, and the other end of the push member 3340 is rotatably connected to the movable support body 3300. Specifically, one end of the push member 3340 is fixed to the drive pin 3140, and the other end of the push member 3340 is rotatably connected to the movable support body 3310. The pushing member 3340 can rotate synchronously with the driver 3200, and the rotation of the pushing member 3340 can drive the movable bracket 3300 to slide relative to the support rod 3130. Therefore, through the provision of the pushing member 3340, the movable bracket 3300 can slide relative to the support rod 3130 as the driver 3200 rotates.

[0397] 91 to 94 , the drive pin 3140 has a first end 3142 and a second end 3143 that oppose each other. The first end 3142 of the drive pin 3140 is fixedly connected to the lower end of the push rod 3210 of the rider 3200, allowing the drive pin 3140 to rotate with the rotation of the rider 3200. The first end 3142 of the drive pin 3140 has a flat portion 31421. When the rider 3200 rotates, the lower end of the push rod 3210 pushes against the flat portion 31421, causing the drive pin 3140 to rotate with the rotation of the rider 3200. The second end 3143 of the drive pin 3140 passes through the support rod 3130 and is fixedly connected to the push member 3340. The drive pin 3140 has a pivot portion 3144 located between the first end 3142 and the second end 3143. The pivot portion 3144 has a circular cross-section. When the drive pin 3140 passes through the support rod 3130, the pivot portion 3144 is located in the support rod 3130. The drive pin 3140 is rotatable relative to the support rod 3130 due to the sliding fit between the pivot portion 3144 and the support rod 3130. A fixing hole 3341 is provided at the first end of the push member 3340, which is fixedly connected to the drive pin 3140, and a connecting hole 3342 is provided at the second end of the push member 3340, which is rotatably connected to the movable bracket body 3310. The fixing hole 3341 is non-circular. The outer periphery of the other end 3143 of the drive pin 3140 has a shape that matches the shape of the fixing hole 3341. The second end 3143 of the drive pin 3140 is adapted to be inserted into the fixing hole 3341, and the push member 3340 is fixed to the second end 3143, for example, by an interference fit with the fixing hole 3341. When the driver 3200 rotates, the pushing member 3340 will also rotate synchronously with the driver 3200 due to the driving of the driving pin 3140 fixedly connected between the driver 3200 and the pushing member 3340. It will be understood that in other embodiments, the second end 3143 of the driving pin 3140 can be fixedly connected to the pushing member 3340 by welding, bonding, key connection, pin connection, riveting, etc.

[0398] The movable bracket 3300 is provided with a mating hole 3312. Specifically, the mating hole 3312 can be provided in the movable bracket body 3310 and can be an elongated slot extending generally in the vertical direction (i.e., perpendicular to the longitudinal and transverse directions). The other end of the push member 3340 is adapted to be rotatably connected to the mating hole 3312 via, for example, a fixing pin 3313. Specifically, the fixing pin 3313 passes through a connection hole 3342 provided in the push member 3340 and is slidably embedded in the mating hole 3312. Due to the sliding engagement between the fixing pin 3313 and the mating hole 3312, the other end of the push member 3340 can rotate relative to the mating hole 3312 and slide along the mating hole 3312 during rotation of the push member 3340. When the push member 3340 rotates with the driver 3200, the fixing pin 3313 can drive the movable bracket 3300 to slide relative to the support rod 3130. Specifically, the backrest support 3600 can be pivotally connected to the movable frame body 3310 via the same fixing pin 3313. When the rider 3200 rotates to change direction, the fixing pin 3313 is adapted to slide along the mating hole 3312. For example, when the rider 3200 rotates from the rear of the child carrier 310 toward the front of the child carrier 310, the fixing pin 3313 first slides from the lower portion of the mating hole 3312 to the upper portion of the mating hole 3312, and then slides from the upper portion of the mating hole 3312 to the lower portion of the mating hole 3312. When the rider 3200 rotates from the front of the child carrier 310 toward the rear of the child carrier 310, the fixing pin 3313 also first slides from the lower portion of the mating hole 3312 to the upper portion of the mating hole 3312, and then slides from the upper portion of the mating hole 3312 to the lower portion of the mating hole 3312. Specifically, when the movable bracket 3300 slides until the mating hole 3312 is directly above the driving pin 3140, the fixing pin 3313 slides to the top of the mating hole 3312. The mating hole 3312 provides a movable space for the other end of the push member 3340 connected to the movable bracket body 3310, allowing the push member 3340 to rotate with the driver 3200.

[0399] 95 to 98 , when the rider 3200 rotates from the rear of the child carrier 310 toward the front of the child carrier 310 to switch the child carrier 310 from the forward-facing mode shown in FIG. 95 to the rear-facing mode shown in FIG. 96 , the push member 3340 rotates synchronously with the rider 3200. The rotation of the push member 3340 drives the movable bracket 3300 to slide relative to the support rod 3130 in the third movement direction F5 in FIG. 97 (which corresponds to a direction toward the front of the child carrier 310 in the longitudinal direction of the child carrier 310). As a result, the movable bracket 3300 slides relative to the support rod 3130 in the third movement direction F5 from the position shown in FIG. 97 to the position shown in FIG. 98 , causing the movable bracket 3300 to move further away from the rear wheel 3121 in the longitudinal direction of the child carrier 310. That is, when the rider 3200 rotates from the rear of the child carrier 310 toward the front of the child carrier 310 to convert the child carrier 310 from the forward mode to the rearward mode, the movable bracket 3300 slides forward relative to the frame 3100 on the support rod 3130. When the rider 3200 rotates from the front of the child carrier 310 toward the rear of the child carrier 310 to convert the child carrier 310 from the rearward mode to the forward mode, the pushing member 3340 drives the movable bracket 3300 to slide relative to the support rod 3130 in a direction opposite to the third movement direction F5 as the rider 3200 rotates, so that the movable bracket 3300 is closer to the rear wheel 3121 in the longitudinal direction of the child carrier 310. That is, when the rider 3200 rotates from the front of the child carrier 310 toward the rear of the child carrier 310 to convert the child carrier 310 from the rear-facing mode to the forward-facing mode, the movable bracket 3300 slides rearward relative to the frame 3100 on the support rod 3130 .

[0400] Although various illustrative embodiments have been described above, numerous modifications may be made to the various embodiments without departing from the scope of the present invention as set forth in the claims. For example, optional features of various devices may be included in some embodiments or not in others. Accordingly, the foregoing description is provided primarily for illustrative purposes and should not be construed as limiting the scope of the present invention as set forth in the claims.

[0401] The examples and illustrations included herein illustrate specific embodiments of the present invention by way of example and not limitation. As previously mentioned, other embodiments can be derived therefrom, so that replacement and modification of the structure can be performed without departing from the scope of the present invention. Therefore, although specific embodiments have been described herein, any configuration that can achieve the same purpose can replace the specific embodiments shown. The present invention is intended to cover all variations of the various embodiments. For those skilled in the art, various combinations of the above-described embodiments and other embodiments not described in detail herein can be obtained by reading the above description.

Claims

1. A children's carrier, characterized in that: include: Frame, seat assembly and locking mechanism, The frame comprises: forefoot; hind foot; an armrest, pivotally connected to the front leg and the rear leg at the same pivot point; and The support member comprises a first support frame and a second support frame pivotally connected to each other, wherein one end of the first support frame away from the second support frame is pivotally connected to the armrest, and one end of the second support frame away from the first support frame is pivotally connected to the rear foot; The locking mechanism comprises: a locking member slidably disposed on the first support frame and switchable between a locking position and a releasing position; Wherein, the locking member has a locking end, and a locking hole is provided on the rear foot. When the locking member is located in the locking position, the locking end is suitable for being inserted and matched with the locking hole; when the locking member is located in the releasing position, the locking end is disengaged from the locking hole.

2. The child carrier according to claim 1, characterized in that: The locking mechanism further comprises: A fixed seat, which is arranged on the rear foot; Wherein, the locking hole is arranged on the fixing seat.

3. The child carrier according to claim 1, wherein: The locking member further includes a locking end, and the second support frame is provided with an unfolding locking groove. When the frame is in the expanded state and the locking member is in the locked position, the locking end is adapted to be inserted into and engaged with the expanded locking slot to restrict the folding of the frame; when the locking member is in the unlocked position, the frame is allowed to switch between the expanded state and the folded state.

4. The child carrier according to claim 3, characterized in that: The locking member further includes a locking end, and the second support frame is provided with a folding locking groove, wherein the folding locking groove and the unfolding locking groove are respectively provided on both sides of the pivot axis of the first support frame and the second support frame. When the frame is in the folded state and the locking member is located at the locking position, the locking end is adapted to be inserted and matched with the folded locking slot to limit the expansion of the frame.

5. The child carrier according to claim 1, characterized in that: The locking member is provided with a pushing portion, which is suitable for being pushed by the unlocking mechanism to drive the locking member to move toward the unlocking position.

6. A child carrier, characterized in that: include: Frame; a seat assembly mounted to the vehicle frame; a backrest assembly pivotally connected to the seat assembly; a headrest plate pivotally connected to the backrest assembly; as well as A driving member is connected to the vehicle frame and is configured to drive the headrest plate so that the angle of the headrest plate relative to the backrest assembly changes when the angle of the backrest assembly relative to the seat assembly changes.

7. The child carrier according to claim 6, characterized in that: The child carrier further comprises: a linkage mechanism, which is provided on one side of the seat assembly and is connected to the backrest assembly and the seat assembly respectively; wherein the seat assembly is configured to be movable relative to the vehicle frame along a longitudinal direction of the vehicle frame; wherein, when the rider pivots relative to the frame, the rider drives the seat assembly to move relative to the frame along the longitudinal direction of the frame, and the seat assembly drives the backrest assembly to move synchronously with the seat assembly along the longitudinal direction of the frame through the linkage mechanism, so that the angle of the backrest assembly relative to the seat assembly remains unchanged; Wherein, the connecting section of the driving member connected to the vehicle frame moves synchronously with the seat assembly along the longitudinal direction of the vehicle frame.

8. A children's carrier, comprising: Frame; a seat movable relative to the frame between a first position and a second position; as well as a front armrest movably connected to the frame; The front armrest is configured to be adjustable, so that when the seat moves to the first position or the second position, the distance between the front armrest and the seat can be selectively increased or decreased.

9. The child carrier according to claim 8, characterized in that: The front armrest is pivotally or telescopically connected to the frame so that the distance of the front armrest relative to the backrest of the seat is adjustable; The front armrest is adapted to be adjusted to a first distance relative to the backrest when the seat is in the first position, and to a second distance relative to the backrest greater than the first distance when the seat is in the second position.

10. The child carrier according to claim 9, characterized in that: When the front armrest is pivotally connected to the vehicle frame, the child carrier further comprises an angle adjustment device, the angle adjustment device comprising: A fixing seat, which is fixed to the frame; a rotating base, one end of which is rotatably connected to the fixed base relative to the fixed base, and the other end of which is connected to the front armrest; and an angle positioning member slidably disposed between the fixed base and the rotating base relative to the rotating base, and configured to be movable between a locking position and a release position, wherein when the angle positioning member is in the locking position, the rotation of the rotating base relative to the fixed base is restricted, and when the angle positioning member is in the release position, the rotation of the rotating base relative to the fixed base is permitted; When the front armrest is telescopically connected to the frame, the child carrier further comprises: a connecting sleeve having a first end and a second end opposite to each other in the axial direction, wherein the first end of the connecting sleeve is fixedly connected to the vehicle frame, The end of the front armrest has an extension portion, and the extension portion is slidably inserted into the second end portion of the connecting sleeve, so that the end of the front armrest is retractable relative to the connecting sleeve.

11. The child carrier according to claim 8, characterized in that: The child carrier further comprises: a movable bracket, which is movably provided on the vehicle frame and is equipped with the seat; The movable bracket is adapted to selectively move forward or backward relative to the frame along the longitudinal direction of the child carrier, so as to move the seat between the first position and the second position.

12. The child carrier according to claim 8, characterized in that: The frame includes side armrests; The child carrier further comprises: a rider pivotably mounted on the frame; and a movable bracket, which is movably provided on the vehicle frame and is equipped with the seat; The rider is connected to the movable bracket at the side armrest, and when the rider rotates relative to the frame, the rider is adapted to drive the movable bracket to move relative to the frame along the longitudinal direction of the child carrier.

13. A children's carrier, comprising: Frame; a rider, which is mounted on the frame; a movable bracket movably arranged on the vehicle frame; as well as a seat mounted on the movable bracket; The movable support is configured to be adjustable so as to selectively move forward or backward relative to the frame along the longitudinal direction of the child carrier independently of the movement of the rider.

14. The child carrier according to claim 13, characterized in that: The child carrier further includes a movement adjustment device, which includes: A locking member is configured to be movable between a locking position and a releasing position. When the locking member is in the locking position, the movable bracket is restricted from moving relative to the vehicle frame. When the locking member is in the releasing position, the movable bracket is allowed to move relative to the vehicle frame.

15. The child carrier according to claim 14, characterized in that: The frame includes a support rod extending in the longitudinal direction of the child carrier; The movable bracket comprises: a sliding sleeve slidably mounted on the support rod; and a movable bracket body, fixed to the sliding sleeve and suitable for mounting the seat; The locking member is movably arranged on the sliding sleeve. When the locking member moves to the locking position, the sliding sleeve is restricted from sliding relative to the support rod. When the locking member moves to the releasing position, the sliding sleeve is allowed to slide relative to the support rod.

16. A children's carrier, comprising: a vehicle frame including side handles; a rider pivotably mounted on the frame; a movable bracket movably arranged on the vehicle frame; a seat mounted on the movable bracket; as well as a sliding member connected to the movable bracket and slidably disposed on the side armrest; When the rider rotates relative to the frame to drive the sliding member to slide relative to the side armrest, the sliding member is adapted to drive the movable bracket to move relative to the frame along the longitudinal direction of the child carrier.

17. The child carrier according to claim 16, characterized in that: A guide groove is provided on the side armrest, and the sliding member passes through the guide groove and can slide along the guide groove; The rider is provided with a driving member, and the driving member is configured to drive the sliding member to slide along the guide groove relative to the side armrest when the rider rotates relative to the frame; The sliding member has a first end and a second end opposite to each other, the first end of the sliding member is connected to the driving member, and the second end of the sliding member is connected to the movable bracket via a transmission member; one end of the transmission member is pivotally connected to the second end of the sliding member, and the other end of the transmission member is hinged to the movable bracket.

18. A children's carrier, comprising: Frame; a rider pivotably mounted on the frame; a movable bracket slidably disposed on the vehicle frame; an armrest fixed to the movable bracket; as well as a seat plate fixed to the movable bracket; The driver is configured to drive the movable bracket to slide relative to the frame along the longitudinal direction of the child carrier when the driver rotates relative to the frame to switch the child carrier between the forward mode and the rearward mode.

19. A children's carrier, comprising: Frame; a rider pivotably mounted on the frame; a movable bracket slidably disposed on the vehicle frame; a seat plate fixed to the movable bracket; a driving member, which is transmission-connected to the movable support; as well as a push rod sleeve fixedly mounted on the lower end of the driver; wherein the push rod sleeve is fixedly connected to the driving member so that when the rider rotates relative to the frame, the driving member rotates synchronously; The driving member is configured to drive the movable bracket to slide relative to the frame along the longitudinal direction of the child carrier when the driving member rotates.

20. A children's carrier, comprising: Frame; a rider pivotally connected to the frame, the rider being connected to a gear; a movable bracket slidably disposed on the vehicle frame; as well as a seat plate fixed to the movable bracket; The movable bracket is provided with a rack fixed relative to the movable bracket, the rack extends along the longitudinal direction of the child carrier and engages with the gear. When the gear rotates, the teeth of the gear push the rack to move along the longitudinal direction of the child carrier.

21. A children's carrier, comprising: Frame; a rider pivotally connected to the frame; a movable bracket slidably disposed on the vehicle frame; a seat plate fixed to the movable bracket; as well as a push member, one end of which is connected to the rider and the other end of which is rotatably connected to the movable bracket, The pushing member is configured to drive the movable bracket to slide relative to the frame along the longitudinal direction of the child carrier when the rider rotates relative to the frame to switch the child carrier between the forward mode and the rearward mode.

22. The child carrier according to any one of claims 18 to 21, characterized in that The seat plate is detachably mounted to the movable bracket.

23. The child carrier according to any one of claims 19 to 21, characterized in that The child carrier further includes an armrest, which is detachably mounted to the vehicle frame or the movable support.

24. The child carrier according to any one of claims 18 to 21, characterized in that The child carrier further comprises at least one of the following: a leg support member pivotally connected to the movable frame or the seat pan for supporting the legs of a child placed in the child carrier; A backrest support member is pivotally connected to the movable bracket or the seat plate, and is used to support a backrest plate or a seat cloth to form a backrest, wherein the backrest support member is optionally provided with a roof support member.

25. The child carrier according to claim 18, wherein: The movable bracket comprises: Movable bracket body; An armrest mounting seat is fixed to the movable bracket body, and the armrest mounting seat is suitable for mounting the armrest.

26. The child carrier according to any one of claims 18 to 21, characterized in that The movable bracket comprises: a movable support body; and A sliding sleeve is fixed to the movable bracket body, and the seat plate is detachably mounted on the sliding sleeve.

27. The child carrier according to claim 19, wherein: The child carrier further includes a transmission member connected between the driving member and the movable bracket; The push rod sleeve has an extension portion; The driving member has a first portion and a second portion that are at a predetermined angle relative to each other; One end of the first part away from the second part is hinged to the transmission member; The extension portion is connected to an end of the second portion away from the first portion via a transverse connection portion.

28. The child carrier according to claim 19, wherein: The push rod sleeves are fixedly provided at both ends of the driver; Each push rod sleeve is fixedly connected to a corresponding driving member via a transverse connecting portion; The child carrier further includes a connecting rod, wherein opposite ends of the connecting rod are respectively connected to the push rod sleeves located at two ends of the rider.

29. The child carrier according to claim 21, wherein: The movable bracket is provided with a matching hole, and the other end of the pushing member is rotatably connected to the matching hole.

Images