Child carrier

Abstract

The utility model discloses a child carrier which comprises a frame, a seat assembly and a locking mechanism. The frame includes: a front leg; a rear leg; the handrail, the front foot and the rear foot are jointly pivoted at the same pivoting point; the supporting piece comprises a first supporting frame and a second supporting frame which are pivoted with each other, one end, far away from the second supporting frame, of the first supporting frame is pivoted with the handrail, and one end, far away from the first supporting frame, of the second supporting frame is pivoted with the rear leg. The locking mechanism comprises a locking piece which is arranged on the first supporting frame in a sliding mode and can be switched between a locking position and an unlocking position. The locking piece is provided with a locking end, and the rear leg is provided with a locking hole. When the locking piece is located at the locking position, the locking end is suitable for being matched with the locking hole in an inserted mode. When the locking piece is located at the unlocking position, the locking end is separated from the locking hole.

Description

Technical Field

[0001] This utility model relates to child vehicles, and in particular, to child vehicles with reversing function. Background Technology

[0002] To meet diverse usage needs, child vehicles such as strollers with reversible functions already exist. These child vehicles can switch between forward-facing and rear-facing modes. In forward-facing mode, the child inside faces forward, while in rear-facing mode, the child faces backward. The reversible function is achieved by directly adjusting the direction of the rider's handlebars (also known as the push handle), thus not affecting the child inside.

[0003] For child bikes that use the rider's rotation to achieve steering, there are existing models where the seat moves relative to the frame as the rider rotates. Such bikes may have an adjustable backrest, for example, by adjusting the length of the backrest straps. A common structure for adjusting the backrest angle involves the bottom of the backrest rotatably connected to the seat, while the upper middle part of the backrest is movably connected to the frame via backrest straps fixed at both ends. However, because the seat moves relative to the frame during the rider's forward and backward steering, the bottom of the backrest moves with the frame, forcing a change in the backrest angle. This change in backrest angle is undesirable and negatively impacts the user experience.

[0004] Furthermore, for traditional child vehicles with driver-shifting functionality, 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 shifting to rear-facing mode, the rear wheel becomes the front wheel. Since the child's seat position relative to the frame remains unchanged, the child's center of gravity shifts closer to the front wheel in the current direction of travel (i.e., the rear wheel in forward-facing mode). In this situation, pushing a child vehicle in rear-facing mode becomes more difficult, especially when going uphill or up stairs. Utility Model Content

[0005] The purpose of this invention is to provide an improved child vehicle with a reversing function.

[0006] The first aspect of this utility model provides a child vehicle. The child vehicle includes a frame, a seat assembly, a backrest assembly, a rider, and a linkage mechanism. The seat assembly is mounted on the frame and configured to move relative to the frame along its longitudinal direction. The backrest assembly is pivotally connected to 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 both the backrest assembly and the seat assembly. When the rider pivots relative to the frame, the rider drives the seat assembly to move relative to the frame along its longitudinal direction. The seat assembly, through the linkage mechanism, causes the backrest assembly to move synchronously with the seat assembly along its longitudinal direction, so that the angle of the backrest assembly relative to the seat assembly remains constant.

[0007] In the first aspect described above, the backrest assembly includes a backrest tube and a backrest strap, with the backrest tube supported on the backrest strap. 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 frame and to the end of the backrest strap.

[0008] In the first aspect described above, the linkage mechanism further includes a fixing plate, which is 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. The end of the strap backing is connected to the fixing plate.

[0009] The second aspect of this utility model provides a child vehicle. The child vehicle includes a frame, a seat assembly, and a locking mechanism. The frame includes front legs, rear legs, armrests, and support members. The armrests are pivotally connected to the front and rear legs at the same pivot point. The support members include 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 disposed on the first support frame and can be switched between a locked position and an unlocked 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 adapted to engage with the locking hole; when the locking member is in the unlocked position, the locking end disengages from the locking hole.

[0010] In the second aspect described above, the locking mechanism also includes a fixing seat. The fixing seat is located on the rear foot. A locking hole is located on the fixing seat.

[0011] In the second aspect mentioned above, the locking member also includes a locking end, and the second support frame is provided with an unfolding locking groove. When the vehicle frame is in the unfolded state and the locking member is in the locked position, the locking end is adapted to engage with the unfolding locking groove to restrict the retraction of the vehicle frame; when the locking member is in the unlocked position, the vehicle frame is allowed to switch between the unfolded state and the retracted state.

[0012] In the second aspect mentioned above, the locking component further includes a locking end, and the second support frame is provided with a retractable locking groove. The retractable locking groove and the unfolding locking groove are respectively located on both sides of the pivot shaft of the first support frame and the second support frame. When the vehicle frame is in the retracted state and the locking component is in the locked position, the locking end is adapted to engage with the retractable locking groove to restrict the unfolding of the vehicle frame.

[0013] In the second aspect mentioned above, the locking member is provided with a pushing part, which is adapted to be pushed by the unlocking mechanism to drive the locking member to move to the unlocking position.

[0014] In the second aspect described above, the child vehicle also includes a rider, which is pivotally connected to a support member. The release mechanism includes a drive member and an operating member. The drive member is movably disposed on the rider and adapted to push against a push portion to move the locking member to the release position. The operating member is disposed on the rider and connected to the drive member, and the operating member can be operated to drive the drive member to move.

[0015] In the second aspect described above, the child vehicle also includes a rider, a backrest assembly, and a linkage mechanism. The rider is pivotally connected to the frame. The backrest assembly includes a backrest tube and a backrest strap, the backrest tube being supported on the backrest strap and pivotally connected to the seat assembly. The linkage mechanism is located on one side of the seat assembly and is connected to both the end of the backrest strap and the seat assembly. When the rider pivots relative to the frame, the rider drives the seat assembly to move relative to the frame along the longitudinal direction, and the seat assembly, through the linkage mechanism, causes the end of the backrest strap to move synchronously with the seat assembly along the longitudinal direction of the frame.

[0016] A third aspect of this utility model provides a child vehicle comprising: a frame; a seat assembly mounted on the frame; a backrest assembly pivotally connected to the seat assembly; a headrest plate pivotally connected to the backrest assembly; and a drive member connected to the frame and configured to drive the headrest plate such 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.

[0017] In the third aspect described above, the child vehicle further includes a linkage mechanism disposed on one side of the seat assembly and connected to both the backrest assembly and the seat assembly. The seat assembly is configured to move relative to the frame along its longitudinal direction. When the rider pivots relative to the frame, the rider drives the seat assembly to move relative to the frame along its longitudinal direction. The seat assembly, through the linkage mechanism, causes the backrest assembly to move synchronously with the seat assembly along the longitudinal direction of the frame, so that the angle of the backrest assembly relative to the seat assembly remains constant. The connecting section of the drive member, which is connected to the frame, moves synchronously with the seat assembly along the longitudinal direction of the frame.

[0018] In the third aspect described above, the backrest assembly is configured to pivot relative to the seat assembly so that the child carrier can switch between a sitting position and a reclining 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 reclining position, the backrest assembly is in a horizontal position, and the headrest is perpendicular to the backrest assembly.

[0019] In the third aspect described above, the backrest assembly includes a backrest tube, the bottom of which is pivotally connected to the top section of the backrest tube.

[0020] In the third aspect described above, the headrest is pivotable relative to the backrest assembly within an angle of approximately 90° to approximately 180° with respect to the backrest assembly.

[0021] In the third aspect described above, a headrest elastic member is provided between the headrest and the backrest assembly, the headrest elastic member being adapted to bias the headrest so that the headrest remains parallel to the seat assembly.

[0022] In the third aspect described above, the headrest elastic element is integrally in the form of a double torsion spring, having two spring portions and a U-shaped abutment portion, with the two spring portions located at opposite ends 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 against the headrest and is adapted to apply an elastic restoring force to the headrest to keep the headrest parallel to the seat assembly.

[0023] In the third aspect described above, the actuating element includes a headrest strap, the top of which is connected to the frame via the headrest strap, the headrest strap having a constant length in the section between the headrest and the frame. The headrest strap is adapted to pull the headrest relative to the backrest assembly during the pivoting of the backrest assembly relative to the seat assembly to switch the child vehicle from the sitting position to the lying position.

[0024] In the third aspect above, the driving member includes a backrest strap adapted to support the backrest tube thereon.

[0025] In the third aspect described above, 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 frame and to the connecting section of the drive member.

[0026] In the third aspect described above, the linkage mechanism further includes a fixing plate, which is 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, and the connecting section of the driving member is connected to the fixing plate.

[0027] In the third aspect described above, the child vehicle further includes a strap adjustment device through which the back strap passes and extends to the connecting section, the strap adjustment device being configured to adjust the length of the back strap between the fixing plate and the strap adjustment device.

[0028] A fourth aspect of this utility model provides a child vehicle 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 tilt angle of the backrest assembly, the backrest strap having an effective backrest support length, the longer the effective backrest support length, the greater the tilt angle of the backrest assembly; and a strap adjustment device configured to adjust the effective backrest support length of the backrest strap. The effective backrest support length is shortest when the backrest assembly is in the upright position and longest when the backrest assembly is in the horizontal position. The strap adjustment device is configured to automatically shorten the effective backrest support length when the backrest assembly is in the horizontal position or in any position deviating from the upright position towards the horizontal position, so that the backrest assembly returns to the upright position.

[0029] According to a fifth aspect of the present invention, a child vehicle 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 when the seat is moved to the first position or the second position, the distance between the front armrest and the seat can be selectively increased or decreased.

[0030] In a fifth aspect of the present invention, the front armrest is pivotally or telescopically connected to the vehicle frame such that the distance of the front armrest relative to the back 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 greater than the first distance.

[0031] In a fifth aspect of this invention, when the front armrest is pivotally connected to the frame, the child vehicle further includes an angle adjustment device comprising: a fixed seat fixed to the frame; a rotating seat, one end of which is rotatably connected to the fixed seat relative to the fixed seat, and the other end of which is connected to the front armrest; and an angle positioning member slidably disposed between the fixed seat and the rotating seat relative to the rotating seat, and configured to be movable between a locked position and a released position, wherein when the angle positioning member is in the locked position, it restricts the rotation of the rotating seat relative to the fixed seat, and when the angle positioning member is in the released position, it allows the rotation of the rotating seat relative to the fixed seat.

[0032] In a fifth aspect of this invention, when the front armrest is retractably connected to the frame, the child vehicle further includes: a connecting sleeve having a first end and a second end opposite each other 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 that is slidably inserted into the second end of the connecting sleeve, such that the end of the front armrest is retractable relative to the connecting sleeve.

[0033] In a fifth aspect of this invention, the child vehicle further includes: a movable support movably disposed on the frame and on which the seat is mounted. The movable support is adapted to selectively move forward or backward relative to the frame along the longitudinal direction of the child vehicle, so that the seat moves between a first position and a second position.

[0034] In a fifth aspect of this invention, the frame includes a side armrest. The child vehicle further includes: a rider pivotally mounted on the frame; and a movable support movably mounted on the frame and fitted with the seat. The rider and the movable support are connected at the side armrest, and when the rider rotates relative to the frame, the rider is adapted to drive the movable support to move relative to the frame along the longitudinal direction of the child vehicle.

[0035] According to a sixth aspect of the present invention, a child vehicle is provided, comprising: a frame; a rider disposed on the frame; a movable support movably disposed on the frame; and a seat mounted on the movable support. The movable support is configured to be adjustable to selectively move forward or backward relative to the frame along the longitudinal direction of the child vehicle independently of the movement of the rider.

[0036] In a sixth aspect of this invention, the child vehicle further includes a movement adjustment device comprising: a locking member configured to be movable between a locked position and an unlocked position, wherein when the locking member is in the locked position, it restricts the movement of the movable support relative to the frame, and when the locking member is in the unlocked position, it allows the movement of the movable support relative to the frame.

[0037] In a sixth aspect of this invention, the frame includes a support rod extending along the longitudinal direction of the child vehicle. The movable support includes: a sliding sleeve slidably fitted onto the support rod; and a movable support body fixed to the sliding sleeve and adapted to mount the seat. A locking member is movably disposed on the sliding sleeve, restricting sliding of the sliding sleeve relative to the support rod when the locking member is moved to the locked position, and allowing sliding of the sliding sleeve relative to the support rod when the locking member is moved to the unlocked position.

[0038] According to a seventh aspect of the present invention, a child vehicle is provided, comprising: a frame including a side armrest; a rider pivotally disposed on the frame; a movable support movably disposed on the frame; a seat mounted on the movable support; and a slider connected to the movable support and slidably disposed on the side armrest. When the rider rotates relative to the frame to cause the slider to slide relative to the side armrest, the slider is adapted to drive the movable support to move relative to the frame along the longitudinal direction of the child vehicle.

[0039] In a seventh aspect of this invention, a guide groove is provided on the side armrest, and the sliding member passes through the guide groove and is slidable along the guide groove. The rider is provided with a drive member configured to drive the sliding member to slide relative to the side armrest along the guide groove when the rider rotates relative to the frame. The sliding member has opposing first and second ends; the first end of the sliding member is connected to the drive member, and the second end of the sliding member is connected to the movable support 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 support.

[0040] This invention also provides a child vehicle that can shift the center of gravity when the rider changes direction, making it easier for the rider to push the child vehicle after changing direction.

[0041] An eighth aspect of this utility model provides a child vehicle 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 fixed to the movable support. The rider is configured such that when the rider rotates relative to the frame to switch the child vehicle between a forward-facing mode and a rearward-facing mode, it drives the movable support to slide relative to the frame along the longitudinal direction of the child vehicle.

[0042] In the eighth aspect described above, the seat plate is detachably mounted to the movable bracket.

[0043] In the eighth aspect described above, the child carrier further includes at least one of the following: a leg support pivotally connected to the movable support or the seat plate for supporting the legs of a child placed within the child carrier; and a backrest support pivotally connected to the movable support or the seat plate for supporting a backrest or seat fabric to form a backrest. The backrest support may optionally include a canopy support.

[0044] In the eighth aspect above, the movable support includes: a movable support body; and a handrail mounting base fixed to the movable support body, wherein the handrail mounting base is adapted to mount the handrail.

[0045] In the eighth aspect described above, the movable support includes: a movable support body; and a sliding sleeve fixed to the movable support body, wherein the seat plate is detachably mounted on the sliding sleeve.

[0046] In the eighth aspect mentioned above, the seat plate is detachably mounted to the sliding sleeve by means of a snap-fit ​​mechanism.

[0047] In the eighth aspect above, when the rider rotates relative to the frame to change the child vehicle from a forward-facing mode to a rearward-facing mode, the rider drives the movable support to move forward relative to the frame along the longitudinal direction of the child vehicle.

[0048] In the eighth aspect above, the child vehicle includes two movable supports, and an elastic support is provided between the two movable supports. When the seat plate is fixed to the movable supports, the elastic support is adapted to support the seat plate.

[0049] In the eighth aspect described above, the frame includes a support rod, and the rider includes a push rod pivotally connected to the support rod. A sleeve is slidably fitted onto the support rod.

[0050] In the eighth aspect mentioned above, the movable support body, the sliding sleeve, and the handrail mounting base are integrally formed.

[0051] In the eighth aspect described above, the push rod is pivotally connected to the support rod via a 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 vehicle and meshing with the gear, wherein when the gear rotates, the teeth of the gear push the rack to move along the longitudinal direction of the child vehicle.

[0052] In the eighth aspect above, the first end of the drive pin is fixed to the rider's push rod by a locating pin.

[0053] In the eighth aspect described above, the child carrier further includes: a transmission member, one end of which is fixed to the movable support body; a drive member, hinged to the other end of the transmission member; a pivot shaft passing through the support rod, the push rod and the drive member being rotatably connected to the pivot shaft on opposite sides of the support rod; and a push rod sleeve fixed to the lower end of the push rod. The push rod sleeve is fixedly connected to the drive member such that when the push rod rotates, the drive member rotates synchronously. The drive member is configured to drive the transmission member to move when it rotates. The transmission member is configured to drive the movable support to slide along the support rod under the drive of the drive member.

[0054] In the eighth aspect described above, the push rod sleeve has an extension. The drive member has an L-shaped drive member body, the drive member body including a first portion and a second portion at a predetermined angle relative to the first portion. The drive 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 away from the connection is hinged to the other end of the drive member. A transverse connecting portion is provided between the end of the extension and the end of the second portion away from the connection.

[0055] In the eighth aspect described above, the lateral connecting portion extends from the second portion toward the extension portion and is fixedly connected to the extension portion; or the lateral connecting portion extends from the extension portion toward the second portion and is fixedly connected to the second portion.

[0056] In the eighth aspect mentioned above, the push rod sleeve, the drive member, and the transverse connecting part are integrally formed.

[0057] In the eighth aspect described above, the frame includes two support rods, each of which is slidably fitted with the movable bracket. The rider includes two push rods, each of which is fixedly fitted with a push rod sleeve. Each push rod sleeve is fixedly connected to a corresponding drive member via a lateral connecting portion. The child vehicle also includes a connecting rod, the opposite ends of which 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.

[0058] A ninth aspect of this utility model provides a child vehicle comprising: a frame; a rider pivotally mounted on the frame; a movable support slidably mounted on the frame; a seat fixed to the movable support; a drive member tractively connected to the movable support; and a push rod sleeve fixed to the lower end of the rider. The push rod sleeve is fixedly connected to the drive member such that when the rider rotates relative to the frame, the drive member rotates synchronously. The drive member is configured such that when the drive member rotates, it drives the movable support to slide relative to the frame along the longitudinal direction of the child vehicle.

[0059] In the ninth aspect described above, the seat plate is detachably mounted to the movable bracket.

[0060] In the ninth aspect described above, the child vehicle further includes a handrail, which is detachably mounted to the frame or the movable support.

[0061] In the ninth aspect described above, the child carrier further includes at least one of the following: a leg support pivotally connected to the movable support or the seat plate for supporting the legs of a child placed within the child carrier; and a backrest support pivotally connected to the movable support or the seat plate for supporting a backrest or seat fabric to form a backrest. The backrest support may optionally include a canopy support.

[0062] In the ninth aspect described above, the movable support includes: a movable support body; and a sliding sleeve fixed to the movable support body, wherein the seat plate is detachably mounted on the sliding sleeve.

[0063] In the ninth aspect described above, the child carrier further includes a transmission member connecting the drive member and the movable support. The push rod sleeve has an extension. The drive member has a first portion and a second portion at a predetermined angle to each other. The end of the first portion remote from the second portion is hinged to the transmission member. The extension is connected via a lateral connecting portion to the end of the second portion remote from the first portion.

[0064] 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 drive component through a lateral connecting part; the child vehicle also includes a connecting rod, the opposite ends of which are respectively connected to the push rod sleeves located at both ends of the rider.

[0065] In the ninth aspect described above, the frame includes a support rod, and the rider includes a push rod, the push rod sleeve being fixed to the lower end of the push rod. The child vehicle also includes a pivot shaft passing through the support rod, and the push rod and the drive member are rotatably connected to the pivot shaft on opposite sides of the support rod.

[0066] In the ninth aspect described above, the transmission member is configured to drive the movable bracket to slide along the support rod under the drive of the driving member.

[0067] In the ninth aspect above, the child vehicle includes two movable supports, and an elastic support is provided between the two movable supports. When the seat plate is fixed to the movable supports, the elastic support is adapted to support the seat plate.

[0068] In the ninth aspect described above, the sliding sleeve is slidably fitted onto the support rod.

[0069] In the ninth aspect described above, the seat plate is detachably mounted to the sliding sleeve by means of a snap-fit ​​mechanism.

[0070] In the ninth aspect mentioned above, the movable support also includes a handrail mounting base, which is fixed to the main body of the movable support and is adapted to mount a handrail.

[0071] In the ninth aspect described above, the first and second portions of the drive member form a generally L-shaped structure. The drive member is rotatably connected to the pivot shaft at the connection between the first and second portions. The end of the first portion away from the connection is hinged to the other end of the transmission member. A transverse connecting portion is provided between the end of the extension and the end of the second portion away from the connection.

[0072] In the ninth aspect described above, the lateral connecting portion extends from the second portion toward the extension portion and is fixedly connected to the extension portion; or the lateral connecting portion extends from the extension portion toward the second portion and is fixedly connected to the second portion.

[0073] In the ninth aspect mentioned above, the push rod sleeve, the drive member, and the transverse connecting portion are integrally formed.

[0074] In the ninth aspect described above, 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 fitted with a push rod sleeve. Each push rod sleeve is fixedly connected to a corresponding drive member via a lateral connecting portion. The 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.

[0075] A tenth aspect of this utility model provides a child vehicle comprising: a frame; a rider pivotally connected to the frame, the rider being connected to a gear; a movable support slidably disposed on the frame; and a seat fixed to the movable support. The movable support is provided with a rack fixed relative to the movable support, the rack extending along the longitudinal direction of the child vehicle and meshing with the gear, wherein when the gear rotates, the teeth of the gear push the rack to move along the longitudinal direction of the child vehicle.

[0076] In the tenth aspect described above, the seat plate is detachably mounted to the movable bracket.

[0077] In the tenth aspect described above, the child vehicle further includes a handrail, which is detachably mounted to the frame or the movable support.

[0078] In the tenth aspect described above, the child carrier further includes at least one of the following: a leg support pivotally connected to the movable support or the seat plate for supporting the legs of a child placed within the child carrier; and a backrest support pivotally connected to the movable support or the seat plate for supporting a backrest or seat fabric to form a backrest. The backrest support may optionally include a canopy support.

[0079] In the tenth aspect described above, the movable support includes: a movable support body; and a sliding sleeve fixed to the movable support body, wherein the seat plate is detachably mounted on the sliding sleeve.

[0080] In the tenth aspect described above, the frame includes a support rod, and the rider includes a push rod, the push rod being pivotally connected to the support rod via the drive pin. A first end of the drive pin is fixedly connected to the lower end of the push rod of the rider, and a second end of the drive pin passes through the support rod and is fixedly connected to a gear.

[0081] In the tenth aspect mentioned above, the child vehicle includes two movable supports, and an elastic support is provided between the two movable supports. When the seat plate is fixed to the movable supports, the elastic support is adapted to support the seat plate.

[0082] In the tenth aspect described above, the sliding sleeve is slidably fitted onto the support rod.

[0083] In the tenth aspect described above, the seat plate is detachably mounted to the sliding sleeve by means of a snap-fit ​​mechanism.

[0084] In the tenth aspect mentioned above, the movable support further includes a handrail mounting base, which is fixed to the main body of the movable support and is adapted to install a handrail.

[0085] In the tenth aspect mentioned above, the movable support body, the sliding sleeve, and the handrail mounting base are integrally formed.

[0086] In the tenth aspect described above, the first end of the drive pin is fixed to the rider's push rod by a locating pin.

[0087] The eleventh aspect of this utility model provides a child vehicle comprising: a frame; a rider pivotally connected to the frame; a movable support slidably disposed on the frame; a seat fixed to the movable support; and a pusher member, one end of which is connected to the rider and the other end of which is rotatably connected to the movable support. The pusher member is configured to drive the movable support to slide relative to the frame along the longitudinal direction of the child vehicle when the rider rotates relative to the frame to switch the child vehicle between a forward-facing mode and a rearward-facing mode.

[0088] In the eleventh aspect described above, the movable bracket is provided with a mating hole, and the other end of the pushing member is rotatably connected to the mating hole. In the eleventh aspect described above, the seat plate is detachably mounted to the movable bracket.

[0089] In the eleventh aspect above, the child vehicle also includes a handrail, which is detachably mounted to the frame or the movable support.

[0090] In the eleventh aspect described above, the child carrier further includes at least one of the following: a leg support pivotally connected to the movable support or the seat plate for supporting the legs of a child placed within the child carrier; and a backrest support pivotally connected to the movable support or the seat plate for supporting a backrest or seat fabric to form a backrest. The backrest support may optionally include a canopy support.

[0091] In the eleventh aspect above, the movable support includes: a movable support body; and a sliding sleeve fixed to the movable support body, wherein the seat plate is detachably mounted on the sliding sleeve. Attached Figure Description

[0092] The features and advantages of this utility model will be better understood through the following detailed description of exemplary embodiments utilizing the principles of this utility model, with reference to the accompanying drawings:

[0093] Figure 1 A child vehicle according to a first embodiment of the present invention is shown, wherein the child vehicle is in a forward-facing mode;

[0094] Figure 2 A child vehicle according to a first embodiment of the present invention is shown, wherein the child vehicle is in a rear-facing mode;

[0095] Figure 3 for Figure 1 A schematic diagram of the structure of a child vehicle after removing the front and rear legs;

[0096] Figure 4 This is a partially exploded view of a child carrier according to the first embodiment of the present invention after the front and rear legs have been removed.

[0097] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0098] Figure 6 This is a partially exploded view of the child vehicle according to the first embodiment of the present invention, after the front and rear feet have been removed.

[0099] Figure 7 for Figure 6 A magnified view of a portion of the image;

[0100] Figure 8 A child vehicle according to a second embodiment of the present invention is shown, wherein the child vehicle is in a forward-facing mode;

[0101] Figure 9 for Figure 8 A partial side sectional view of a child vehicle in the image;

[0102] Figure 10 for Figure 9 A magnified view of a portion of the image;

[0103] Figure 11 for Figure 10 After removing some internal details, a structural diagram of the cable is displayed.

[0104] Figure 12 This is a side view of the child carrier mounting base according to the second embodiment of the present invention when it is installed in the armrest.

[0105] Figure 13 This is a schematic diagram of the mounting base of a child carrier according to a second embodiment of the present invention and the components installed therein.

[0106] Figure 14 This is an exploded view of the mounting base of the child carrier according to the second embodiment of the present invention and the components installed therein;

[0107] Figure 15 This is an exploded view from another perspective of the mounting base of the child vehicle according to the second embodiment of the present invention and the components mounted therein;

[0108] Figure 16 A child vehicle according to a third embodiment of the present invention is shown, wherein the child vehicle is in a forward-facing mode;

[0109] Figure 17 for Figure 16 A magnified view of a portion of the image;

[0110] Figure 18 A child vehicle according to a fourth embodiment of the present invention is shown, wherein the child vehicle is in a rear-facing mode;

[0111] Figure 19 for Figure 18 A side view of a child vehicle in its folded-up state;

[0112] Figure 20 for Figure 18 Side view of a child vehicle in the image;

[0113] Figure 21 for Figure 18 A cross-sectional view of a child vehicle in the image;

[0114] Figure 22 Show Figure 18 The side frame of the child vehicle and the components mounted on it;

[0115] Figure 23 for Figure 22 An exploded view of the lateral frame and the components mounted on it;

[0116] Figure 24 for Figure 18 A partial view of the cross-sectional view of the child vehicle along line U1-U1;

[0117] Figure 25 Show Figure 18 A partial structure of a child vehicle in its folded state;

[0118] Figure 26 A child carrier according to a fifth embodiment of the present invention is shown, wherein the child carrier is in a sitting position;

[0119] Figure 27 for Figure 26 A structural schematic diagram of the child vehicle from another perspective;

[0120] Figure 28 A child carrier according to a fifth embodiment of the present invention is shown, wherein the child carrier is in a lying position;

[0121] Figure 29 for Figure 28 Side view of the child vehicle shown;

[0122] Figure 30 for Figure 28 A structural schematic diagram of the child vehicle from another perspective;

[0123] Figure 31 A strap adjustment device according to a sixth embodiment of the present invention is shown;

[0124] Figure 32A and Figure 32B They are respectively Figure 31 The diagram shows an exploded view of the strap adjustment device from two different perspectives.

[0125] Figure 33A and Figure 33B These are schematic diagrams of the reel shown in Figure 32 from two different perspectives;

[0126] Figure 34A and Figure 34B These are schematic diagrams of the auxiliary disk shown in Figure 32 from two different perspectives;

[0127] Figure 35 for Figure 31 A schematic diagram of the internal structure of the belt adjustment device shown from one perspective;

[0128] Figure 36 for Figure 31 A schematic diagram of the internal structure of the belt adjustment device shown from another perspective;

[0129] Figure 37 yes Figure 31 A schematic diagram showing the locking element of the belt adjustment device in the locked position;

[0130] Figure 38 yes Figure 31 A schematic diagram showing the locking element of the belt adjustment device in the unlocked position;

[0131] Figure 39 A child vehicle according to a seventh embodiment of the present invention is shown, wherein the child vehicle is in a forward-facing mode;

[0132] Figure 40 A child vehicle according to a seventh embodiment of the present invention is shown, wherein the child vehicle is in a rear-facing mode;

[0133] Figure 41 Show Figure 40 The child-friendly vehicle in which the angle of the front armrest relative to the backrest is adjustable;

[0134] Figure 42 for Figure 41 A schematic diagram of the child vehicle shown from another perspective;

[0135] Figure 43 A partial structure of a child carrier according to a seventh embodiment of the present invention is shown;

[0136] Figure 44 This is a partial exploded view of the angle adjustment device according to the seventh embodiment of the present invention;

[0137] Figure 45 The internal structure of the angle adjustment device according to the seventh embodiment of the present invention is shown, wherein the front armrest is in a first angle position;

[0138] Figure 46 The internal structure of the angle adjustment device according to the seventh embodiment of the present invention is shown, wherein the front armrest is in the second angle position;

[0139] Figure 47 A child carrier according to an eighth embodiment of the present invention is shown, wherein the front armrest is in a first length position;

[0140] Figure 48 for Figure 47 A magnified view of region H in the image;

[0141] Figure 49 for Figure 48 A schematic diagram showing the front armrest in the second length position;

[0142] Figure 50 This is a structural schematic diagram of the front armrest and connecting sleeve according to the eighth embodiment of the present utility model;

[0143] Figure 51 A perspective view of a child vehicle according to the eighth embodiment of the present invention;

[0144] Figure 52 A partial structure of a child carrier according to the eighth embodiment of the present invention is shown;

[0145] Figure 53 for Figure 52 A partial structural exploded view of the local structure shown.

[0146] Figure 54 A partial structure of the movable adjustment device according to the eighth embodiment of the present invention is shown, wherein the locking member is in the locked position;

[0147] Figure 55 A partial structure of the movable adjustment device according to the eighth embodiment of the present invention is shown, wherein the locking member is in the unlocked position;

[0148] Figure 56 This is a cross-sectional view of a partial structure of a child carrier according to the eighth embodiment of the present invention, wherein the locking member is in the locked position;

[0149] Figure 57 This is a cross-sectional view of a partial structure of a child carrier according to the eighth embodiment of the present invention, wherein the locking member is in the unlocked position;

[0150] Figure 58 A child vehicle according to a ninth embodiment of the present invention is shown, wherein the child vehicle is in a forward-facing mode;

[0151] Figure 59 A child vehicle according to a ninth embodiment of the present invention is shown, wherein the child vehicle is in a rear-facing mode;

[0152] Figure 60 A schematic diagram of a child vehicle according to a ninth embodiment of the present invention is shown in a rearward view, wherein the child vehicle is in a forward-facing mode;

[0153] Figure 61 A structural schematic diagram of a child vehicle according to a ninth embodiment of the present invention is shown in a rearward view, wherein the child vehicle is in a rearward mode;

[0154] Figure 62 for Figure 58 A magnified view of region I in the image;

[0155] Figure 63 for Figure 59 A magnified view of region J in the image;

[0156] Figure 64 A schematic diagram of a child vehicle according to a ninth embodiment of the present invention is shown in a forward-facing view, wherein the child vehicle is in a rearward-facing mode;

[0157] Figure 65 for Figure 64 A magnified view of region K in the image;

[0158] Figure 66 for Figure 64 A magnified view of region L in the image;

[0159] Figure 67 for Figure 64 A schematic diagram of a partial structure of the child vehicle shown;

[0160] Figure 68 for Figure 67 A schematic diagram of the local structure shown from another perspective;

[0161] Figure 69 A child vehicle according to a tenth embodiment of the present invention is shown, wherein the child vehicle is in a forward-facing mode;

[0162] Figure 70 A child vehicle according to a tenth embodiment of the present invention is shown, wherein the child vehicle is in a rear-facing mode;

[0163] Figure 71 This is a structural schematic diagram of a child vehicle according to the tenth embodiment of the present invention from a rearward perspective, wherein the child vehicle is in a forward-facing mode;

[0164] Figure 72 for Figure 71 A magnified view of region M in the image;

[0165] Figure 73 This is a structural schematic diagram of a child vehicle according to the tenth embodiment of the present invention from a forward-facing perspective, wherein the child vehicle is in a forward-facing mode;

[0166] Figure 74 for Figure 73 A magnified view of region N in the image;

[0167] Figure 75 for Figure 73 The diagram shows the structure of the child vehicle in reverse mode, and also shows some structural details of the child vehicle.

[0168] Figure 76 for Figure 71 An exploded view of the components of a partial structure of a child vehicle;

[0169] Figure 77 Show along Figure 69 The local structure of the section taken along the U2-U2 direction;

[0170] Figure 78 A child vehicle according to the eleventh embodiment of the present invention is shown from one perspective, wherein the child vehicle is in a forward-facing mode;

[0171] Figure 79 A child vehicle according to the eleventh embodiment of the present invention is shown from another perspective, wherein the child vehicle is in a forward-facing mode;

[0172] Figure 80 for Figure 78 A schematic diagram of a child vehicle converting to a rear-facing mode;

[0173] Figure 81 for Figure 79A schematic diagram of a child vehicle converting to a rear-facing mode;

[0174] Figure 82 for Figure 78 A schematic diagram of a partial structure of a child vehicle;

[0175] Figure 83 A partial structure of a child vehicle according to the twelfth embodiment of the present invention is shown, wherein the child vehicle is in a forward-facing mode;

[0176] Figure 84 A partial structure of a child vehicle according to the twelfth embodiment of the present invention is shown, wherein the child vehicle is in a rear-facing mode;

[0177] Figure 85 A partial structure of a child vehicle according to the thirteenth embodiment of the present invention is shown, wherein the child vehicle is in a forward-facing mode;

[0178] Figure 86 A child vehicle according to the fourteenth embodiment of the present invention is shown;

[0179] Figure 87 This is a bottom view of the seat plate of a child carrier according to the fourteenth embodiment of the present invention;

[0180] Figure 88 A child vehicle according to the fifteenth embodiment of the present invention is shown;

[0181] Figure 89 A child vehicle according to the sixteenth embodiment of the present invention is shown, wherein the child vehicle is in a forward-facing mode;

[0182] Figure 90 for Figure 89 A magnified view of region P in the image;

[0183] Figure 91 Show along Figure 90 The local structure of the section taken along the U3-U3 direction;

[0184] Figure 92 for Figure 89 The diagram shown is a schematic representation of the structure after the backrest support and push-up components have been removed.

[0185] Figure 93 This is a schematic diagram of the drive pin according to the sixteenth embodiment of the present invention;

[0186] Figure 94 This is a partial exploded view of the child vehicle according to the sixteenth embodiment of the present invention;

[0187] Figure 95 for Figure 89The diagram shown illustrates the child vehicle after the backrest support has been removed.

[0188] Figure 96 for Figure 95 The diagram shows a child vehicle switched to rear-facing mode.

[0189] Figure 97 for Figure 95 A magnified view of region Q in the image;

[0190] Figure 98 for Figure 96 A magnified view of region R in the image.

[0191] Explanation of reference numerals in the attached figures:

[0192] 110. Child vehicles;

[0193] 1100. Frame; 1101. First slide groove; 1102. Second slide groove; 1110. Side frame; 1111. Front leg; 1112. Rear leg; 1113. Handrail; 11131. Receiving groove; 1114. Support member; 1114a. First support frame; 1114b. Second support frame; 11141. Sliding groove; 11142. Locking groove; 11142a. Unfolding locking groove; 11142b. Retracting locking groove; 11143. Guide groove; 11144. Through hole; 11145, receiving groove; 1115, reinforcing rod; 1120, seat tube; 1180, release mechanism; 1181, operating component; 1182, driving component; 11821, driving part; 1190, locking mechanism; 1191, locking component; 11911, locking part; 11912, locking end; 11913, pushing part; 1192, locking reset component; 1193, fixed base; 11931, locking hole; 11914, locking part; 11915, locking end;

[0194] 1200, Seat assembly; 1210, Movable support; 1211, Tubular portion; 1212, Second protrusion; 1213, Recess; 1214, Through hole; 1215, Rib;

[0195] 1300, Backrest assembly; 1310, Backrest tube; 1311, Top section; 1312, Side section; 1320, Drive component; 1321, First end backrest strap; 1322, Second end backrest strap; 1323, Backrest strap; 1330, Side plate; 1331, Guide groove; 1332, Guide section; 1333, Strip hole;

[0196] 1400, Rider; 1401, Grip; 1402, Pushrod; 1410, Pin;

[0197] 1500, Linkage mechanism; 1510, Linkage rod; 1512, First protrusion; 1519, Sliding pin; 15192, Flange; 1520, Elastic element; 1530, Transmission assembly; 1531, Linkage gear; 1532, Driven gear; 15321, First driven gear; 15321a, First gear section; 15321b, Second gear section; 15322, Second driven gear; 15323, Third driven gear; 15323a, First gear section; 15323b, Second gear section; 1533, Output gear; 1540, Sliding member; 1541, Tooth; 1542, Connecting part; 1543, Sliding part; 1544, Through hole; 1550, Traction member; 1560, Drive wheel; 1571, First through hole; 1518, Second through hole; 1570, Fixing plate; 1572, Connecting hole; 1580, Guide member; 1590, Connecting member;

[0198] 1600, Transmission mechanism; 1610, First connecting rod; 1620, Second connecting rod;

[0199] 1700, Mounting base; 1701, First accommodating space; 1702, Second accommodating space; 1710, Housing; 1711, Baffle; 1712, First limiting part; 1713, Second limiting part; 1720, Cover; 1721, Step; 1722, Opening;

[0200] 1800, Headrest plate; 1810, Headrest plate elastic element; 1811, U-shaped abutment part; 1812, Spring part; 1820, Mounting hole;

[0201] 1900, Strap Adjustment Device; 1910, First Outer Cover; 1911, Guide Hole; 1920, Second Outer Cover; 1930, Inner Cover; 1931, Fixing Post; 1932, Connecting Part; 1933, Through Hole; 1934, Hole; 1940, Reel; 1940A, First Reel; 1940B, Second Reel; 1940C, Intermediate Connecting Part; 1941, Winding Groove; 1942, Mounting Hole; 1943, Slot; 1944, Ratchet; 1945, Guide Groove; 1945', Guide Groove 1950, Clockwork spring; 1951, First end; 1952, Second end; 1960, Connector; 1970, Auxiliary disc; 1971, Body; 1972, First limiting piece; 1973, Second limiting piece; 1974, Limiting channel; 1980, Elastic element; 1981, First end; 1982, Second end; 1990, Pawl; 1991, Connecting side; 1992, Free side; 1993, Engaging part; 1994, Protrusion; 1901, Pull handle; 1902, Driving element;

[0202] 210. Chassis;

[0203] 2110. Movable bracket; 2111. Sliding sleeve; 21111. Sliding channel; 21112. Mounting base; 211121. Flange; 2112. Main body of movable bracket; 2113. Base; 2114. Side frame; 2120. Support rod; 2121. Moving positioning hole; 2122. Limiting groove; 2130. Front armrest; 2131. Extension; 21311. Length positioning component; 21312. Spring piece; 21313. Length adjustment actuator; 2140. Side armrest; 2141. Guide groove; 2150. Fixing block;

[0204] 2200, Angle adjustment device; 2210, Fixed base; 2211, Angle positioning hole; 2220, Rotary base; 2221, Positioning post; 2230, Angle positioning component; 2231, Drive post; 2240, First elastic element; 2250, Angle adjustment actuator; 2251, Positioning groove; 2252, Drive inclined groove;

[0205] 2300 Connecting sleeve; 2310 First end; 2320 Second end; 2321 Length positioning hole;

[0206] 2400, Moving adjustment device; 2410, Locking element; 2411, Locking part; 24111, Snap connector; 2412, Operating part; 24121, Receiving cavity; 24122, Protrusion; 2420, Second elastic element; 2430, Limiting pin; 2440, Guide element; 2441, Slide groove; 2442, Fastener; 2450, Sliding block; 2460, Third elastic element;

[0207] 2510, Sliding component; 2520, Transmission component;

[0208] 2600, Driver; 2610, Drive unit; 2611, Connecting part; 2612, Drive unit; 26121, Sliding channel; 26122, First jacking part; 26123, Second jacking part;

[0209] 2700. Seat; 2710. Backrest;

[0210] 310. Child vehicles;

[0211] 3100, Frame; 3110, Front leg; 3111, Front wheel assembly; 3120, Rear leg; 3121, Rear wheel assembly; 3122, Center post; 3130, Support rod; 3131, Horizontal part; 3140, Drive pin; 3141, Second locating pin hole; 3142, First end; 31421, Flat part; 3143, Second end; 3144, Pivot part; 3150, Gear; 3160, Pivot shaft; 3170, Transmission component; 3180, Drive component; 3181, Drive component body; 31811, First part; 31812, Second part; 3182, First lateral connection part; 3190, Fastener;

[0212] 3200, Rider; 3210, Push rod; 3211, Push rod housing; 3212, Fixing component; 32121, Drive pin hole; 32122, First locating pin hole; 32123, Clamping part; 3213, Locating pin; 32131, Locating pin head; 3214, Push rod plug; 3215, Push rod sleeve; 32151, Extension part; 32152, Second lateral connecting part; 3216, Connecting rod; 3220, Grip; 3230, Lateral connecting part;

[0213] 3300, Movable support; 3310, Movable support body; 3311, Rack; 3312, Mating hole; 3313, Fixing pin; 3320, Sliding sleeve; 3321, Engaging groove; 3330, Handrail mounting base; 3340, Pushing component; 3341, Fixing hole; 3342, Connecting hole;

[0214] 3400, Handrail;

[0215] 3500, Leg support components;

[0216] 3600, Backrest support components;

[0217] 3700, Canopy support component; 3710, First canopy support rod; 3720, Second canopy support rod;

[0218] 3800, elastic support components;

[0219] 3900, Seat plate; 3910, Engaging protrusion;

[0220] F. Vertical direction;

[0221] F1, first direction; F2, second direction;

[0222] F3, First movement direction; F4, Second movement direction; F5, Third movement direction

[0223] X1, pivot axis;

[0224] X2, axial direction;

[0225] D1, winding direction; D2, unwinding direction;

[0226] D3. Direction of rotation. Detailed Implementation

[0227] In the following description, various aspects of the present invention will be described. Specific details are set forth for purposes of explanation in order to provide a thorough understanding of the present invention. It will be apparent to those skilled in the art that other embodiments of the present invention differ in detail without affecting its essence. 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, and the appropriate scope of the present invention shall be determined only by the broadest interpretation of the claims.

[0228] When a feature or element is referred to herein as "on another feature or element," it may be directly on the other feature or element, or there may be intermediate features and / or elements present. Conversely, when a feature or element is referred to herein as "directly" on another feature or element, there are no intermediate features or elements present. It should also be understood that when a feature or element is referred to herein as "connected," "attached," or "joined" to another feature or element, it may be directly connected, attached, or joined to the other feature or element, or there may be intermediate features or elements present. Conversely, when a feature or element is referred to herein as "directly connected," "directly attached," or "directly joined" to another feature or element, there are no intermediate features or elements present.

[0229] Spatial terms such as “below,” “under,” “above,” and “over” are used herein for descriptive purposes, particularly to describe the positional relationship between one feature or element and another, as shown in the figures. It should be understood that spatial terms are intended to include different orientations of the device in use or operation, in addition to those shown in the figures. For example, if the device in the figure is inverted, a feature or element described herein as “below” other features or elements would be oriented “above” other features or elements. Thus, the exemplary term “below” 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 herein are interpreted accordingly. Similarly, unless otherwise specified, terms such as “up,” “down,” “vertical,” and “horizontal” used herein are for illustrative purposes only.

[0230] While the terms “first” and “second” may be used herein to describe various features or elements, these features or elements should not be limited by these terms unless otherwise specified. These terms are used to distinguish one feature or element from another. Therefore, a first feature or element discussed below may be referred to as a second feature or element, and similarly, a second feature or element discussed below may be referred to as a first feature or element. In this document, “multiple” means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0231] In this text, "longitudinal direction" refers to the longitudinal direction of the child vehicle from the perspective of a child inside the vehicle, corresponding to the forward / backward direction. "lateral direction" refers to the lateral direction of the child vehicle from the perspective of a child inside the vehicle, corresponding to the left / right direction. "Forward travel direction" refers to the direction the child vehicle travels when pushed forward in the longitudinal direction. "Reverse travel direction" refers to the direction the child vehicle travels when pulled backward in the longitudinal direction. "Front" of the child vehicle indicates its orientation towards the forward travel direction in forward mode; "Rear" indicates its orientation away from the forward travel direction in forward mode; "Left" indicates the left side when viewed from behind; and "Right" indicates the right side when viewed from behind. Other terms like "front," "rear," "left," and "right" mentioned in the text have similar meanings.

[0232] The following describes exemplary embodiments of the child carrier provided by this utility model, using a child stroller as an example. Child strollers include, but are not limited to, sitting strollers, reclining strollers, and convertible strollers.

[0233] First Embodiment

[0234] Figure 1 and Figure 2A child vehicle according to a first embodiment of the present invention is shown in a forward-facing mode and a rearward-facing mode. The child vehicle 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 in the longitudinal direction F (i.e., the fore-and-aft direction) 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 lateral handlebar 1401 and two push rods 1402 respectively connected to opposite ends of the handlebar 1401. The rider 1400 is pivotally connected to the frame 1100 and configured to drive the seat assembly 1200 to move relative to the frame 1100 along the longitudinal direction F of the frame 1100 when pivoting relative to the frame 1100. Two push rods 1402 of the rider 1400 are pivotally connected to the frame 1100 on the left and right sides respectively. A linkage mechanism 1500 is disposed on one side of the seat assembly 1200 and connected to the backrest assembly 1300. The linkage mechanism 1500 is configured such that the angular adjustment range of the backrest assembly 1300 relative to the seat assembly 1200 is the same when the seat assembly 1200 moves between a first position and a second position.

[0235] It should be understood that the same angular adjustment range of the backrest assembly 1300 relative to the seat assembly 1200 as described herein refers to the adjustment range without using the strap adjustment device 1900 provided on the backrest assembly 1300 (see [link to document]). Figure 6 When adjusting the angle of the backrest assembly 1300 relative to the seat assembly 1200, when the seat assembly 1200 moves from the first position to the second position or from the second position to the first position, the angle of the backrest assembly 1300 relative to the seat assembly 1200 remains basically the same or unchanged within a certain range.

[0236] The frame 1100 includes two lateral frames 1110 disposed opposite each other, and two seatposts 1120 respectively connected to the two lateral frames 1110. The seat assembly 1200 is disposed on the seatposts 1120. For ease of description, the following description takes the lateral frame 1110 and seatpost 1120 located on one side of the frame 1100 as an example.

[0237] The lateral frame 1110 includes a front leg 1111 and a rear leg 1112. The front leg 1111 and the rear leg 1112 are interconnected and form a generally triangular structure with respect to the ground. The lateral frame 1110 also includes an armrest 1113 connected to the front leg 1111 and the rear leg 1112, the armrest 1113 being positioned generally parallel to the ground or slightly inclined relative to the ground. The front leg 1111, the rear leg 1112, and the armrest 1113 are pivotally connected to 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 both the armrest 1113 and the seat post 1120. In other embodiments, the support member 1114 may also be connected to both the rear leg 1112 and the armrest 1113, forming a generally triangular structure with the armrest 1113 and the rear leg 1112.

[0238] The seat assembly 1200 is movably (e.g., slidably) mounted on the seat post 1120 along the longitudinal direction F of the frame 1100. The seat assembly 1200 includes a movable support 1210 and a seat plate (not shown) mounted on the movable support 1210, the movable support 1210 being movably (e.g., slidably) mounted on the seat post 1120 along the longitudinal direction F of the frame 1100. See also... Figure 4 and Figure 5 The movable support 1210 includes a tubular portion 1211, which is slidably fitted onto the seat post 1120 along the longitudinal direction of the frame 1100. It is understood that the movable support 1210 can also be movably mounted on the seat post 1120 along the longitudinal direction of the frame 1100 in other ways, such as by providing a groove.

[0239] See Figure 4 The backrest assembly 1300 includes two parallel backrest tubes 1310 for supporting a backrest panel (not shown). The backrest assembly 1300 is mounted on the seat assembly 1200 via the backrest tubes 1310. The bottom of the backrest tubes 1310 is pivotally connected to a movable bracket 1210, allowing for angular adjustment relative to the movable bracket 1210 and the seat tube 1120. It is understood that, herein, the angle of the backrest assembly 1300 relative to the seat assembly 1200 corresponds to the angle between the planes containing the two backrest tubes 1310 and the planes containing the two seat tubes 1120. When a backrest panel is mounted on the two backrest tubes 1310 and a seat plate 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 plate. The angle between the backrest assembly 1300 and the seat assembly 1200 corresponds to the angle between the backrest panel and the seat plate within the seating space defined by the backrest panel and the seat plate.

[0240] See Figure 3The backrest assembly 1300 includes a backrest strap 1323 (for clarity, backrest straps in some other figures have been omitted, for example, Figure 1 and Figure 2 The back strap is not shown, but Figure 1 and Figure 2 Child vehicles in the middle can be similar to Figure 8 A backrest strap is provided. The two ends of the backrest strap 1323 are respectively connected to two side frames 1110, and the upper middle part of the backrest tube 1310 is supported on the backrest strap 1323. The rider 1400 can pivot relative to the frame 1100, thereby allowing the child vehicle 110 to be in forward-facing mode (see...). Figure 1 ) and backward mode (see Figure 2 Switching between the two. The rider 1400 is positioned on the outside of the lateral frame 1110 and pivotally connected to the support member 1114 of the lateral frame 1110. The rider 1400 is connected via pin 1410 (see...). Figure 4 The pin 1410 is pivotally connected to the side frame 1110 (e.g., support member 1114). The pin 1410 may pass through the side frame 1110 (e.g., support member 1114).

[0241] like Figure 3 As shown, the rider 1400 can be connected to the seat assembly 1200 via a transmission mechanism 1600, for example, to the movable support 1210 of the seat assembly 1200. The transmission mechanism 1600 can 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 along the longitudinal direction of the frame 1100 relative to the seat tube 1120.

[0242] The transmission mechanism 1600 is located inside the lateral frame 1110. The rider 1400 is connected to the transmission mechanism 1600 via a pin 1410 passing through the lateral frame 1110.

[0243] In this embodiment, the transmission mechanism 1600 is a linkage mechanism. For example... Figures 3 to 7As shown, the transmission mechanism 1600 includes a first link 1610 and a second link 1620 disposed on the 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, and 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, square holes may be provided on the rider 1400 and the first end of the first link 1610, and both ends of the pin 1410 may be square structures and can be engaged in the square holes, thereby achieving a fixed connection between the pin 1410 and 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. This other pin may also pass through the backrest tube 1310 to achieve pivotal connection between the backrest tube 1310 and the movable bracket 1210, and the backrest tube 1310 may move synchronously with the movable bracket 1210 when the movable bracket 1210 moves along the longitudinal direction F of the frame 1100. 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 through the first link 1610 and the second link 1620, drive the seat assembly 1200 to move along the longitudinal direction of the frame 1100, for example, drive the movable support 1210 to move (e.g., slide) relative to the seat post 1120 along the longitudinal direction of the frame 1100. It is understood that the above description is only an example of the transmission mechanism 1600, and the transmission mechanism 1600 can also adopt other configurations. For example, the first link 1610 and the second link 1620 can be located between the lateral frame 1110 and the seat post 1120; for example, the number of links can be varied; and for example, other non-linkage transmission mechanisms can also be used.

[0244] According to the child vehicle of this embodiment, when the user rotates the rider 1400, the rider 1400 drives the movable support 1210 to move relative to the seat post 1120 along the longitudinal direction of the frame 1100 via the transmission mechanism 1600. At this time, the bottom of the backrest tube 1310 will move synchronously with the movable support 1210. Without adjusting the length of the backrest strap 1323, the upper middle part of the backrest tube 1310 is supported on the backrest strap 1323 and will not move with the movable support, thereby causing the angle of the backrest tube 1310 relative to the seat assembly 1200 to change.

[0245] The linkage mechanism 1500 can be connected to the seat assembly 1200 or the rider 1400, and 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 along 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 along 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 along the longitudinal direction F of the frame 1100, so that the angle of the backrest assembly 1300 relative to the seat assembly 1200 remains unchanged. 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. This allows the rider 1400 to pivot relative to the frame 1100, causing the upper middle part and the bottom of the backrest tube 1310 to move synchronously via the backrest strap 1323. This ensures that the backrest tube 1310 and the movable support 1210 move synchronously along the longitudinal direction of the frame without pivoting relative to the movable support 1210. It should be understood that the upper middle part of the backrest tube 1310 mentioned herein refers to a position at a certain distance from the bottom of the backrest tube 1310, relative to its bottom.

[0246] It should be understood that the angle of the backrest assembly 1300 relative to the seat assembly 1200 remains unchanged, meaning that it does not change without the strap adjustment device 1900 (see...). Figure 6 When the angle of the backrest assembly 1300 relative to the seat assembly 1200 is adjusted (e.g., without adjusting the length of the backrest strap 1323), the angle of the backrest assembly 1300 relative to the seat assembly 1200 remains substantially the same or unchanged within a certain range when the rider 1400 pivots relative to the frame 1100.

[0247] In this embodiment, the linkage mechanism 1500 is connected to the end of the seat assembly 1200 (e.g., the movable bracket 1210) and the backrest strap 1323, respectively, and is configured 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 upper middle part of the backrest tube 1310 is supported on the backrest strap 1323, the upper middle part 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.

[0248] See Figure 4 , Figure 6and Figure 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 frame 1100 and is fixedly connected to the end of the backrest strap 1323, such that when the seat assembly 1200 moves relative to the frame 1100 in the longitudinal direction, 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 middle part 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 middle part of the backrest tube 1310 and the bottom of the backrest tube 1310 can move synchronously, so that they do not pivot relative to the seat assembly 1200 and change their angle relative to the seat assembly 1200.

[0249] A linkage rod 1510 is disposed between the lateral frame 1110 and the movable support 1210. The lateral frame 1110 has a first slide groove 1101 extending along the longitudinal direction F of the frame 1100, and the second end of the linkage rod 1510 is slidably mounted to the first slide groove 1101. In this embodiment, the first slide groove 1101 is disposed on the armrest 1113, and the length of the first slide groove 1101 is the same as the distance between the first position and the second position of the seat assembly 1200. In some other embodiments, the length of the first slide groove 1101 may not be the same as the distance between the first position and the second position of the seat assembly 1200; for example, the length of the first slide groove 1101 may be greater than this distance. See also... Figure 4 In this embodiment, the second end of the linkage rod 1510 is installed 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 to the first slide groove 1101 and 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.

[0250] like Figures 4 to 7 As shown, 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 for receiving the first protrusion 1512 (see Figure 1214). Figure 5 and Figure 7 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 extends from the through hole 1214 in a direction away from the linkage rod 1510 (see...). Figure 7 The first protrusion 1512 passes through the second protrusion 1212. The movable bracket 1210 has a recess 1213 on the side facing the linkage rod 1510 (see...). Figure 5 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, which 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 element 1520 (e.g., a torsion spring). The elastic element 1520 is arranged around the second protrusion 1212. One end of the elastic element 1520 abuts between the rib 1215 of the movable bracket 1210 and the second protrusion 1212, and the other end of the elastic element 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 is in forward mode (see...), Figure 1 Backward mode (see) Figure 2 During pivoting, the recess 1213 can restrict the counterclockwise rotation of the first end of the linkage 1510, thereby causing the second end of the linkage 1510 to slide along the first direction F1 (i.e., the forward travel direction in forward mode) (see...). Figure 7 This means that the second end of the linkage 1510 slides forward. When the rider 1400 moves from the rearward mode (see...) Figure 2 Forward mode (see) Figure 1 During pivoting, the elastic element 1520 can restrict the clockwise rotation of the first end of the linkage 1510, thereby causing the second end of the linkage 1510 to slide along the second direction F2 (i.e., the forward direction of travel in the reverse mode) (see...). Figure 7 This means that the second end of the linkage rod 1510 slides backward.

[0251] In this embodiment, when the user rotates the handlebar 1400 to the forward mode (see [reference]), Figure 2 ) and backward mode (see Figure 2When switching between the two positions, the rider 1400 drives the movable bracket 1210 of the seat assembly 1200 to move (e.g., slide) along the longitudinal direction of the frame 1100 on the seat post 1120 via the transmission mechanism 1600. 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. Simultaneously, the movable bracket 1210 drives the linkage rod 1510 to move along the longitudinal direction of the frame 1100, thereby causing the end of the backrest strap 1323 and thus the upper middle part of the backrest tube 1310 to move along the longitudinal direction of the frame 1100 with the seat assembly 1200. Thus, both the upper middle part and the bottom of the backrest tube 1310 move synchronously with the seat assembly 1200, without changing the angle of the backrest assembly 1300 relative to the seat assembly 1200.

[0252] Second Embodiment

[0253] Figures 8 to 15 A child carrier according to a second embodiment of the present invention is shown. The main difference between the second embodiment and the first embodiment described above lies in the arrangement of the linkage mechanism; the similarities or differences with the first embodiment described above will not be repeated here.

[0254] In this embodiment, the linkage mechanism 1500 is connected to the end of the rider 1400 and 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.

[0255] See Figure 10 and Figure 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 passing through the lateral frame 1110 (e.g., 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 the sliding 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 middle part of the backrest tube 1310 and the bottom of the backrest tube 1310 to move synchronously.

[0256] Specifically, the transmission assembly 1530 may include a drive gear 1531, one or more driven gears 1532, and an output gear 1533. The drive gear 1531 can be connected to the pin 1410 via a traction member 1550 and a drive wheel 1560. The drive wheel 1560 is fixedly connected to the pin 1410 and can rotate with the pin 1410; for example, the drive wheel 1560 can be sleeved on the pin 1410. See also... Figure 11 The traction member 1550 is connected to both the drive wheel 1560 and the linkage gear 1531. When the drive wheel 1560 rotates, it can drive the linkage gear 1531 to rotate via the traction member 1550. For example, the traction member 1550 can be a cable. One end of the cable is fixed to a first position on the linkage gear 1531, and the other end extends to the drive wheel 1560, passes around the drive wheel 1560, extends back to the linkage gear 1531, and is fixed to a second position opposite to the first position. The portion of the cable wound around the drive wheel 1560 is also fixed to a certain position on the drive wheel 1560 (e.g., ...). Figure 11 (At position R shown), when the drive wheel 1560 rotates, the lengths of the cable portions on both sides of the drive wheel 1560 and the linkage gear 1531 change, causing the linkage gear 1531 to rotate as well. 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 sliding member 1540. This allows the rotation of the linkage gear 1531 to drive the sliding member 1540 to move longitudinally along the frame 1100. The sliding member 1540 is equipped with a rack, which may have multiple teeth 1541 (see...). Figure 12 This allows the pin 1410 to mesh with the output gear 1533, thereby driving the slider 1540 to slide. Since the rotation angle of the pin 1410 is small, by providing one or more driven gears 1532, and ensuring that the number of teeth on the driven gears 1532 is less than the number of teeth on the linkage gear 1531, the smaller angle of rotation of the linkage gear 1531 can be amplified into a larger angle of rotation of the output gear 1533, allowing the slider 1540 to move a larger distance. It should be understood that the above detailed description is merely an example, and those skilled in the art can make several adjustments, variations, and improvements. For example, the drive wheel 1560 can be omitted, and the traction member 1550 can be connected to both the pin 1410 and the linkage gear 1531, respectively. When the pin 1410 rotates, it can drive the linkage gear 1531 to rotate via the traction member 1550. For example, where appropriate, one or more driven gears 1532 or output gears 1533 can be omitted, and the linkage gear 1531 can directly mesh with the slider 1540. For example, the number of driven gears 1532 can be adjusted according to the actual situation.

[0257] See Figures 12 to 15The transmission assembly 1530 is equipped with a plurality of driven gears 1532. Each driven gear 1532 includes a first driven gear 15321, a second driven gear 15322, and a third driven gear 15323. The first driven gear 15321 meshes between the linkage gear 1531 and the second driven gear 15322, and the third driven gear 15323 meshes 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 coaxially arranged and interconnected, so that the second gear portion 15321b rotates synchronously with the first gear portion 15321a. Optionally, the first gear portion 15321a is integrally formed on or fixedly connected to the second gear portion 15321b by means of adhesive bonding, welding, or other methods. The first gear portion 15321a is located on the side of the second gear portion 15321b facing the linkage gear 1531. The first gear section 15321a meshes with the linkage gear 1531, and the second gear section 15321b meshes with the second driven gear 15322. The number of teeth in the first gear section 15321a is less than the number of teeth in the second gear section 15321b, and also less than the number of teeth in the linkage gear 1531. When the linkage gear 1531 rotates, it drives the first gear section 15321a to rotate. The second gear section 15321b rotates together with the first gear section 15321a, thereby driving the second driven gear 15322 to rotate. In this way, the small angle of rotation of the linkage gear 1531 is amplified into a larger rotation angle of the first gear section 15321a, and the small transmission distance of the first gear section 15321a is amplified into a larger transmission distance of the second gear section 15321b by the synchronously rotating second gear section 15321b, and then transmitted to the second driven gear 15322. Therefore, the transmission distance of the first driven gear 15321 to the driven gear 1531 (that is, the transmission distance of the drive wheel 1560, see...) Figure 11 The image has been enlarged. It can be understood that the transmission distance of a gear is the circumference of the gear corresponding to the gear's rotation angle. The gear includes any one of the following: the driving gear 1531, the driven gear 1532, and the output gear 1533.

[0258] 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 on or fixedly connected to the second gear portion 15321b by means of adhesive bonding, welding, etc. 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 section 15323a, and the smaller transmission distance of the first gear section 15323a is amplified into a larger transmission distance of the second gear section 15323b by the synchronously rotating second gear section 15323b. As a result, the third driven gear 15323 amplifies the transmission distance of the linkage gear 1531 a second time. This amplified transmission distance is transmitted to the output gear 1533, and through the meshing between the output gear 1533 and the sliding member 1540, it is converted into the movement of the sliding member 1540 in the longitudinal direction F. Specifically, the moving distance of the slider 1540 in the longitudinal direction F can be adjusted 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.

[0259] In this embodiment, when the drive wheel 1560 fixed on the pin 1410 rotates a small distance, the transmission distance of the drive wheel 1560 is converted into the rotation of the linkage gear 1531 through the traction member 1550. Then, the transmission distance of the linkage gear 1531 is transmitted to the output gear 1533 multiple times through multiple driven gears 1532, and then amplified and converted into the 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 sliding member 1540 can be moved a suitable distance in the longitudinal direction F through the transmission mechanism 1600, so that the angle between the backrest assembly 1300 and the seat assembly 1200 remains unchanged.

[0260] In some other embodiments, a 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 directly mesh with the second gear portion 15321b of the first driven gear 15321. In other still embodiments, only the first driven gear 15321 may be provided to amplify the transmission distance of the linkage gear 1531 once; alternatively, multiple gears with structures more 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 more than twice.

[0261] In this embodiment, the linkage mechanism 1500 is disposed inside the lateral frame 1110, making it invisible from the outside of the lateral frame 1110. The lateral frame 1110 has one or more cavities, and the transmission assembly 1530, the slider 1540, the traction member 1550 and the drive wheel 1560 are all disposed within one or more cavities of the lateral frame 1110.

[0262] In this embodiment, the transmission assembly 1530 (including the linkage gear 1531, one or more driven gears 1532 and output gear 1533) and the sliding member 1540 are both disposed in the cavity within the handrail 1113. The drive wheel 1560 is disposed in the cavity of the support member 1114 and is connected to the linkage gear 1531 via the traction member 1550.

[0263] See Figures 13 to 15 The sliding member 1540 may include a sliding portion 1543 and a connecting portion 1542. A rack is formed in the connecting portion 1542, and teeth 1541 may be provided on the connecting portion 1542. The connecting portion 1542 is used to mesh with the output gear 1533. When the driven gear 1531 rotates, the driven gear 1532 and the output gear 1533 can drive the connecting portion 1542, and thus drive the sliding portion 1543 to slide along the longitudinal direction of the frame 1100.

[0264] See Figures 12 to 15 The child carrier 110 also includes a mounting base 1700 disposed in a cavity within the armrest 1113. The mounting base 1700 includes a housing 1710, and a baffle 1711 is disposed on the inner wall of the housing 1710, dividing the housing 1710 into a first accommodating space 1701 and a second accommodating space 1702. A sliding portion 1543 of the slider 1540 can be disposed in the first accommodating space 1701 and is slidably disposed on the baffle 1711. See also... Figure 13The baffle 1711 may be provided with a first limiting portion 1712 and a second limiting portion 1713 on both sides to limit the sliding limit position of the sliding portion 1543. The distance between the first limiting portion 1712 and the second limiting portion 1713 along the longitudinal direction of the frame 1100 may be the same as the distance by which the seat assembly 1200 moves along the longitudinal direction of the frame 1100 between its first position and its second position. The linkage gear 1531, one or more driven gears 1532 and output gear 1533 may be provided in the second accommodating space 1702, at least one of which meshes 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 output gear 1533.

[0265] See Figures 13 to 15 The mounting base 1700 may further include a cover 1720, which can be mounted to the housing 1710 and together with the housing 1710 defines a second receiving space 1702. A drive gear 1531, one or more driven gears 1532, and an output gear 1533 may be disposed between the cover 1720 and the housing 1710. One end of the connecting portion 1542 of the slider 1540 is provided with teeth 1541 and can extend across the upper end of the cover 1720 and outward from the cover 1720. An opening 1722 may be provided on the outer side of the cover 1720 (see...). Figure 14 The opening 1722 communicates with the second accommodating space 1702. The drive gear 1531, one or more driven gears 1532, or output gear 1533 can mesh with the connecting portion 1542 of the slider 1540 through the opening 1722. Specifically, the output gear 1533 is rotatably disposed within the second accommodating space 1702, and at least a portion of the teeth of the output gear 1533 protrudes 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 (i.e., the thickness of the driven gear 1532) of the one or more driven gears 1532 directly meshing with it.

[0266] Specifically, such as Figure 14 As shown, a step 1721 may be provided on the outer side of the cover 1720, and a tooth 1541 is provided at one end of the connecting part 1542 of the slider 1540, which may extend to the step 1721. An opening 1722 is provided through the step 1721, and the teeth of the linkage gear 1531, one or more driven gears 1532 or output gears 1533 may extend out of the opening 1722 to mesh with the teeth 1541 of the slider 1540.

[0267] See Figure 8A second groove 1102 extending along the longitudinal direction F of the frame 1100 is provided on the lateral frame 1110 (e.g., armrest 1113). The end of the backrest strap 1323 can pass through the second groove 1102 and be fixedly connected to a sliding member 1540 disposed in the cavity of the lateral frame 1110. The end of the backrest strap 1323 can slide in the second 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 in the second groove 1102. The length of the second groove 1102 along the longitudinal direction of the frame 1100 can be the same as the distance between the first position and the second position of the seat assembly 1200. In some other embodiments, the length of the second groove 1102 along the longitudinal direction of the frame 1100 can also be different from the distance between the first position and the second position of the seat assembly 1200.

[0268] See Figure 14 The slider 1540 may be provided with a groove or through hole 1544 for connection with the end of the back strap 1323.

[0269] In this embodiment, when the user rotates the handlebar 1400 to switch between forward and backward modes, the pin 1410 rotates with the handlebar 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 slider 1540 to slide via one or more driven gears 1532 and output gears 1533. This causes the end of the backrest strap 1323 to move along the longitudinal direction of the frame 1100, and causes the upper middle part of the backrest tube 1310 to move synchronously with the bottom of the backrest tube 1310 to prevent the angle between the backrest assembly 1300 and the seat assembly 1200 from changing.

[0270] Third Embodiment

[0271] Figure 16 and Figure 17 This illustration shows a child carrier according to a third embodiment of the present invention. The main difference between the third embodiment and the first or second embodiment described above lies in the arrangement of the linkage mechanism; the similarities or differences with the first or second embodiment described above will not be repeated here.

[0272] See Figure 16 and Figure 17In this embodiment, the linkage mechanism 1500 includes a guide 1580 and a connector 1590. The guide 1580 is attached to the armrest 1113 of the side 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 1580. The connector 1590 is also connected to the seat assembly 1200 and can move with the seat assembly 1200 along the longitudinal direction F of the frame 1100, thereby driving the backrest tube 1310 to move synchronously with the seat assembly 1200 via the backrest strap 1323. The guide 1580 is, for example, a pulley or a protrusion, but is not limited thereto. One of the backrest strap 1323 and the connector 1590 is at least partially wrapped around the guide 1580 and can slide relative to the guide 1580. Optionally, the end of the backrest strap 1323 is connected to the connector 1590 after passing through the guide 1580. 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 wrapped around the guide 1580. Alternatively, one end of the connector 1590 is connected to the seat assembly 1200, and the other end of the connector 1590 is connected to the backrest strap 1323 after passing through the guide 1580. The connector 1590 is, for example, a rope, and is at least partially wrapped around the guide 1580.

[0273] The guide member 1580 serves to support the end of the backrest strap 1323, allowing the backrest tube 1310 to be supported on the middle portion of the backrest strap 1323. When the seat assembly 1200 moves along the longitudinal direction F of the 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, which in turn causes the upper middle portion of the backrest tube 1310 to move along the longitudinal direction F of the 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 shortens, causing the upper middle portion of the backrest tube 1310 to move forward. When the seat assembly 1200 moves backward in the longitudinal direction F, the length of the backrest strap 1323 between the guide 1580 and the backrest tube 1310 increases, thereby causing the upper middle part of the backrest tube 1310 to move backward.

[0274] The guide 1580 is positioned such 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 1580 is typically positioned above the bottom of the backrest tube 1310, for example, attached to the side frame 1110, or to the armrest 1113 of the side frame 1110. The guide 1580 can be, for example, a smooth cylindrical rod, allowing the portion of the backrest strap 1323 passing through the guide 1580 to slide on it. The guide 1580 can also be, for example, a roller, to facilitate the sliding of the portion of the backrest strap 1323 passing through the guide 1580. It is understood that the guide 1580 is not limited to this and other configurations can be used, as long as it can support the portion of the backrest strap 1323 passing through it and allow the portion of the backrest strap 1323 passing through it to slide on it. The number of guides 1580 can be one or more, depending on actual needs. In some embodiments, the connector 1590 can be a separate connector, such as a cable, which is connected to the end of the seat assembly 1200 (e.g., the movable bracket 1210 or the seat) and the backrest strap 1323 respectively. In some embodiments, the connector 1590 is part of the backrest strap 1323, or the connector 1590 can be integrally formed with the backrest strap 1323; in other words, the end of the backrest strap 1323 can be directly connected to the seat assembly 1200 after passing through the guide 1580. It is understood that the connector 1590 is not limited to this and other configurations can be used, as long as the above functions are achieved.

[0275] In this embodiment, when the seat assembly 1200 moves along the longitudinal direction F of the 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. This, in turn, causes the upper middle portion of the backrest tube 1310 to move along the longitudinal direction F of the frame 1100. Since the upper middle portion of the backrest tube 1310 can move synchronously with the bottom of the backrest tube 1310, changes in the angle between the backrest assembly 1300 and the seat assembly 1200 are prevented.

[0276] Fourth embodiment

[0277] Figures 18 to 24 This illustration shows 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 described above; similarities or differences with the first embodiment will not be repeated.

[0278] See Figure 18 and Figure 24The second end of the linkage rod 1510 is installed inside the handrail 1113. Specifically, the handrail 1113 is provided with a receiving groove 11131, which is roughly a U-shaped groove with its opening facing downwards. A first sliding groove 1101 penetrates one side wall of the receiving groove 11131. The second end of the linkage rod 1510 extends from below into the receiving groove 11131 and is slidably installed into the first sliding groove 1101 via a sliding pin 1519. This makes the connection between the linkage rod 1510 and the handrail 1113 simpler and more aesthetically pleasing.

[0279] 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 on the first slide groove 1101 via sliding pins 1519. (See also...) Figure 18 and Figure 24 The fixing piece 1570 is disposed on the side of the armrest 1113 facing the seat assembly 1200. In some other embodiments, the fixing piece 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 piece 1570. Specifically, the fixing piece 1570 is provided with a connecting hole 1572, and the end of the backrest strap 1323 passes through the connecting hole 1572. In other words, the end of the backrest strap 1323 is connected to the second end of the linkage rod 1510 through the fixing piece 1570 and the sliding pin 1519. This allows the fixing piece 1570 and the second end of the linkage rod 1510 to slide synchronously along the first sliding groove 1101 with the sliding pin 1519, 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 passes sequentially through the fixing plate 1570, the first sliding groove 1101, and the second end of the linkage rod 1510, and is confined within the fixing plate 1570 and the linkage rod 1510. More specifically, see... Figure 24The 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 groove 1101, and the second through hole 1518 and is received in the receiving groove 11131. The diameter of the first end of the sliding pin 1519 is slightly larger than that of the second through hole 1518, so that the first end of the sliding pin 1519 can pass through the second through hole 1518 and be stopped on the side of the second through hole 1518 away from the fixing plate 1570. The second end of the sliding pin 1519 forms a flange 15192 that extends laterally from the sliding pin 1519, such that the flange 15192 of the sliding pin 1519 is stopped on the side of the first through hole 1571 of the fixing plate 1570 away from the linkage rod 1510. In this way, the sliding pin 1519 can be prevented from separating from the linkage rod 1510 and / or the fixing plate 1570 during use. In other embodiments, the sliding pin 1519 may also be limited within the linkage rod 1510 and the fixing piece 1570 by other suitable means. For example, the first end of the sliding pin 1519 may be interference-fitted with the second through hole 1518, or a nut may be connected to the second end of the sliding pin 1519; as another example, the first groove 1101 penetrates the two side walls of the receiving groove 11131, the sliding pin 1519 passes through the first groove on the two side walls of the receiving groove 11131, and the first end of the sliding pin 1519 forms a flange or a connecting nut.

[0280] See Figures 20 to 23 The frame 1100 is also equipped with a locking mechanism 1190. The locking mechanism 1190 can lock the frame 1100 in a position such as... Figure 18 and Figure 20The illustrated unfolded state. 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, and the first end of the second support frame 1114b is pivotally connected to the rear footrest 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 respectively via a pin 1410. In other words, the pin 1410 passes through the first support frame 1114a, the second support frame 1114b, and the push rod 1402 of the rider 1400, and defines the pivot axis X1 of the three. The locking mechanism 1190 locks the first support frame 1114a relative to the second support frame 1114b, thereby restricting pivoting between the first support frame 1114a and the second support frame 1114b, and thus restricting the folding of the frame 1100. 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, that is, restricting the folding or unfolding of the 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 frame 1100 to fold or unfold. Figure 19 The folded state shown is folded, or by Figure 19 The folded state shown Figure 18 The locking mechanism 1190 is in the unfolded state shown. The locking mechanism 1190 can be released by any suitable unlocking mechanism 1180 (that is, the locking mechanism 1190 is driven to switch from the locked state to the unlocked state).

[0281] The locking mechanism 1190 includes a locking element 1191. The second support frame 1114b is provided with a locking groove 11142. See also Figure 18 , Figures 21 to 23 The locking groove 11142 includes an unfolding locking groove 11142a disposed at the second end of the second support frame 1114b. A sliding groove 11141 is provided on the side of the first support frame 1114a facing the push rod 1402 of the rider 1400, and the locking member 1191 is slidably disposed within the sliding groove 11141. The locking member 1191 has a locking end 11912 and is switchable between a locked position and an unlocked position. When the frame 1100 is in the unfolded state and the locking member 1191 is in the locked position, and the locking mechanism 1190 is in the locked state, the locking end 11912 of the locking member 1191 is adapted to be inserted into the unfolding locking groove 11142a to restrict the retraction of the frame 1100 (i.e., to lock the frame 1100 in the unfolded state).

[0282] The locking member 1191 includes a locking portion 11911 and a pushing portion 11913 connected to each other. The locking portion 11911 is slidably disposed in the sliding groove 11141 and adapted to be inserted into the locking groove 11142. The lower end of the locking portion 11911 is formed as a locking end 11912. One end of the pushing portion 11913 is connected to the locking portion 11911, and the other end protrudes toward the push rod 1402 of the rider 1400. The pushing portion 11913 is adapted to be pushed by the unlocking mechanism 1180.

[0283] See Figure 19 and Figure 25 The locking groove 11142 also includes a retractable locking groove 11142b. Combined with... Figure 22 As shown, the retractable locking groove 11142b is disposed on the second support frame 1114b and is disposed opposite to the unfolding locking groove 11142a. That is, the retractable locking groove 11142b and the unfolding locking groove 11142a are respectively disposed between the second support frame 1114b and the first support frame 1114a. Pivot shaft X1 (i.e., pin 1410, see...) Figure 23 The frame 1100 is located on both sides of the ground. Specifically, the retractable locking groove 11142b and the unfolding locking groove 11142a are respectively distributed on the circumferential surface centered on the pivot axis X1. Thus, when the frame 1100 is in the unfolded state, the unfolding locking groove 11142a is directly opposite the locking end 11912. When the frame 1100 is switched to the retracted state, the second support frame 1114b rotates relative to the first support frame 1114a around the pivot axis X1, and the retractable locking groove 11142b is directly opposite the locking end 11912. In this embodiment, when the frame 1100 is in the retracted 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 retractable locking groove 11142b to restrict the unfolding of the 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 unlocked position, and the locking mechanism 1190 is in the unlocked state, the locking end 11912 disengages from the locking groove 11142, so that the frame 1100 can be folded or unfolded, that is, the frame 1100 can freely switch between the unfolded state and the folded state.

[0284] See Figure 23The locking mechanism 1190 further includes a locking 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 groove 11145, which communicates with the sliding groove 11141 and is recessed relative to the bottom wall of the sliding groove 11141. At least a portion of the locking member 1191 extends into the receiving groove 11145. The locking reset member 1192 is located within the receiving groove 11145 and is adapted to provide a force to the locking member 1191 to move the locking member 1191 to the locked position. Thus, after the locking mechanism 1190 is released, under the action of the locking reset member 1192, the locking mechanism 1190 switches to a constant-direction locked state.

[0285] See Figures 19 to 23 The locking mechanism 1190 also includes a fixing seat 1193, which is disposed on the rear leg 1112 and has a locking hole 11931. The locking member 1191 also has a locking part 11914, which is connected to the locking part 11911. Specifically, the locking part 11914 is connected to the pushing part 11913 via the locking part 11911, allowing the locking part 11914 to move together with the pushing part 11913. The locking part 11914 has a locking end 11915 extending towards the rear leg 1112. When the locking member 1191 is in the locked position, the locking end 11915 is adapted to engage with the locking hole 11931 to restrict the relative movement between the support member 1114 and the rear leg 1112, thereby restricting the relative movement between the front leg 1111 and the rear leg 1112, and thus enhancing the overall rigidity of the lateral frame 1110. See also... Figure 21 and Figure 22The first support frame 1114a, the second support frame 1114b, the seat post 1120, and the push rod 1402 of the rider 1400 are pivotally connected to each other via a pin 1410. When the frame 1100 is in the unfolded state and the locking member 1191 is in the locked position, on the one hand, the locking end 11912 of the locking member 1191 engages with the unfolded locking groove 11142a to lock the first support frame 1114a and the second support frame 1114b relative to each other. On the other hand, the locking end 11915 of the locking member 1191 engages with the locking hole 11931 to lock the first support frame 1114a and the rear leg 1112 relative to each other. This makes the seat post 1120 of the front leg 1111 and the rear leg 1112 form a stable triangular structure, and also makes the armrest 1113, the first support frame 1114a and the rear leg 1112 form a stable triangular structure. As a result, the included angle between the front leg 1111 and the rear leg 1112 does not change, and the structure of the frame 1100 is more stable. For example, when the child vehicle 110 is pushed in reverse, the rear foot 1112 will not wobble due to a change in the angle between the front foot 1111 and the rear foot 1112 when it encounters an obstacle (e.g., a step). The overall rigidity of the lateral frame 1110 (i.e., the frame 1100) is increased, allowing the child vehicle 110 to easily overcome obstacles. At the same time, the frame 1100 can be further restricted from folding by engaging the locking end 11915 with the locking hole 11931 of the fixing seat 1193. When the frame 1100 is in the folded state and the locking member 1191 is in the locked position, the locking end 11915 disengages from the locking hole 11931, and the locking end 11912 engages with the folding locking groove 11142b, thereby restricting the unfolding of the frame 1100. When the locking member 1191 is in the unlocked position, the locking end 11915 disengages from the locking hole 11931, and the locking end 11912 disengages from the locking groove 11142. That is, the locking end 11912 is separated from both the unfolding locking groove 11142a and the retracting locking groove 11142b, thereby allowing the frame 1100 to retract or unfold.

[0286] The second support frame 1114b is provided with a guide groove 11143, and the locking part 11914 is slidably disposed in the guide groove 11143 to restrict the movement of the locking part 11914 (i.e., the locking member 1191) in a predetermined direction and prevent the locking member 1191 from deviating during movement. One end of the guide groove 11143 is an open end or is provided with a through hole 11144 to allow the locking end 11915 of the locking part 11914 to extend out of the guide groove 11143 and be inserted into the locking hole 11931.

[0287] See Figure 23The locking part 1191 is integrally formed. Optionally, the locking part 11914 can be fixedly connected to the locking part 11911 by means of, for example, adhesive or welding; or, the locking part 11914 can be detachably connected to the locking part 11911 by means of, for example, threaded connection or snap-fit.

[0288] See Figure 22 and Figure 23 The fixing seat 1193 is located near the rear foot 1112, adjacent to the pivotal position between the first support frame 1114a and the second support frame 1114b. The fixing seat 1193 is detachably connected to the rear foot 1112. Optionally, the fixing seat 1193 can be fixed to the rear foot 1112 by means of adhesive, welding, etc., or it can be integrally formed on the rear foot 1112. In some other embodiments, the fixing seat 1193 may not be provided, and the locking hole 11931 may be directly provided on the rear foot 1112.

[0289] 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 handlebar 1401 and a drive member 1182 provided on two push rods 1402. The operating member 1181 can be operated and can drive the two drive members 1182 to move via, for example, two traction members (not shown). The drive member 1182 is provided with a drive portion 11821 protruding towards the lateral frame 1110. When the child vehicle 110 is in forward mode (i.e., frontal mode, see...), Figure 1 When the frame 1100 extends, the extension direction of the guide groove 11143 is parallel to the extension direction of the push rod 1402 of the rider 1400. The drive member 1182 pushes the locking member 1191 of the locking mechanism 1190. Specifically, the drive part 11821 abuts against the lower side of the push part 11913. At this time, operating (e.g., pressing) the operating member 1181 can drive the drive member 1182 to move upward along the push rod 1402. At the same time, the drive member 1182, through the abutment between the drive part 11821 and the push part 11913, drives the locking member to move upward to the unlock position, 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 fold. When the child vehicle 110 is in rear-facing mode (i.e., reverse use), see... Figure 18 and Figure 22Since the driving component 1182 is separated from the locking component 1191, if the operating component 1181 is operated at this time, the unlocking mechanism 1180 cannot drive the locking mechanism 1190 to switch from the locked state to the unlocked state. That is, the locking mechanism 1190 does not respond to the unlocking mechanism 1180, and the locking mechanism 1190 remains in the locked state, restricting the folding of the frame 1100. Of course, the locking mechanism 1190 can also be unlocked by other suitable unlocking mechanisms 1180, as long as the locking mechanism 1190 can be unlocked.

[0290] The following describes the operating principle of unfolding, locking, and folding the child vehicle according to this embodiment.

[0291] See Figure 18 and Figure 22 When the frame 1100 of the child vehicle is in the unfolded state, the locking mechanism 1190 is in the locked state. The locking end 11912 of the locking member 1191 is engaged with the unfolded locking groove 11142a, and the locking end 11915 of the locking member 1191 is engaged with the locking hole 11931 on the fixing seat 1193. This locks the frame 1100 in the unfolded state and limits the change of the angle between the front leg 1111 and the rear leg 1112, making the frame 1100 more stable.

[0292] When the frame 1100 needs to be folded, first switch the child vehicle to forward-facing mode. Then, press the operating member 1181 of the release mechanism 1180. The operating member 1181 drives two driving members 1182 to move along the two push rods 1402 respectively. Each driving member 1182 pushes against the abutting part 11913 of the corresponding locking member 1191, moving it along the guide groove 11143, so that the locking member 1191 moves from the locked position to the released position. At this time, the locking end 11915 disengages from the locking hole 11931, and the locking end 11912 disengages from the unfolded locking groove 11142a, allowing the frame 1100 to be folded. See also Figure 19 and Figure 25 When the frame 1100 is fully retracted, the release mechanism 1181 resets, and the mechanism 1181 and each drive component 1182 return to their original positions. Under the action of the locking reset mechanism 1192, the locking component 1191 moves from the unlocked position to the locked position, causing the locking end 11912 of the locking component 1191 to engage with the retraction locking groove 11142b, thereby locking the frame 1100 in the retracted position. When the frame is in the retracted state, the extension direction of the push rod 1402 of the rider 1400 is parallel to the extension direction of the guide groove 11143.

[0293] When the frame needs to be unfolded, press the operating element 1181. The operating element 1181 drives two driving elements 1182 to move along the two push rods 1402 respectively. Each driving element 1182 pushes against the abutting part 11913 of the corresponding locking element 1191, moving it along the guide groove 11143, so that the locking element 1191 moves from the locked position to the unlocked position. At this time, the locking end 11912 disengages from the retractable locking groove 11142b, and the frame 1100 can be unfolded. See also Figure 18 When the frame 1100 is fully extended, the release operation 1181 is activated, and the operation 1181 and each drive component 1182 are reset. Under the action of the locking reset component 1192, the locking component 1191 moves from the unlocked position to the locked position, so that the locking end 11912 of the locking component 1191 is inserted and engaged with the unfolded locking groove 11142a, and the locking end 11915 is inserted and engaged with the locking hole 11931.

[0294] In this embodiment, the overall rigidity of the side frame 1110 can be enhanced by the insertion and engagement between the locking part 11914 of the locking member 1191 and the locking hole 11931, so that when the child vehicle 110 encounters an obstacle, the included angle between the front foot 1111 and the rear foot 1112 remains basically unchanged, thereby enabling the child vehicle 110 to easily cross obstacles during the pushing process.

[0295] It is understood that the locking mechanism 1190 and the unlocking mechanism 1180 provided in this embodiment are also applicable to child vehicles in the first to third embodiments or other similar embodiments.

[0296] Fifth embodiment

[0297] Figures 26 to 30 A child carrier according to a fifth embodiment of the present invention is shown. The following mainly describes the differences between the fifth embodiment and the fourth embodiment described above; the similarities or differences with the fourth embodiment will not be repeated.

[0298] In this embodiment, the child carrier 110 also includes a headrest 1800, which is pivotally connected to the backrest assembly 1300. The backrest assembly 1300 has a generally U-shaped backrest tube 1310, including a transverse top section 1311 and two lateral sections 1312 connected to opposite ends of the top section 1311. The two lateral sections 1312 are parallel to each other, and each end away from the top section 1311 is pivotally connected to a movable support 1210, allowing the backrest tube 1310 to pivot relative to the movable support 1210, thereby enabling adjustment of the angle between the backrest assembly 1300 and the seat assembly 1200, i.e., the complementary angle of the tilt 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 also remains unchanged.

[0299] The angle between the backrest assembly 1300 and the seat assembly 1200 is adjustable within a predetermined angle 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 vehicle 110 can be used in a sitting position and a reclining position. In the sitting position, the angle between the backrest assembly 1300 and the seat assembly 1200 is at its minimum, while in the reclining position, the angle is at its maximum. By adjusting the angle between the backrest assembly 1300 and the seat assembly 1200, the child vehicle 110 can be switched between the sitting and reclining positions.

[0300] In this embodiment, the headrest 1800 is configured such that the angle of the headrest 1800 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 reclining 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 reclining position, the headrest 1800, which is generally perpendicular to the backrest assembly 1300, can act as a head shield to prevent the head of a child lying in the child carrier 110 from sliding out or protruding from the child carrier 110.

[0301] 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 of approximately 90° to approximately 180° with respect to the backrest assembly 1300. A headrest elastic member 1810 is provided between the headrest 1800 and the backrest assembly 1300. The headrest elastic member 1810 is adapted to bias the headrest 1800 so that the headrest 1800 remains substantially parallel to the seat assembly 1200. Hereinafter, the state in which the headrest 1800 is substantially parallel to the seat assembly 1200 is considered the initial state of the headrest 1800. In this embodiment, the headrest elastic member 1810 is generally in the form of a double torsion spring, having two spring portions 1812 and a U-shaped abutment portion 1811, with the two spring portions 1812 located at opposite ends of the U-shaped abutment portion 1811. Two spring portions 1812 of the headrest elastic member 1810 are wound around the top section 1311 of the backrest tube 1310. The U-shaped abutment portion 1811 of the headrest elastic member 1810 abuts against the head support surface of the backrest 1800, which is adapted to support the head of a child in the child carrier 110. The head support surface of the headrest 1800 is pivotable 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 to keep the headrest 1800 substantially parallel to the seat assembly 1200, that is, to keep the head support surface substantially parallel to the back support surface. In some other embodiments, the headrest elastic member 1810 may be other forms of elastic member such as a torsion spring, a leaf spring, or a shaped spring.

[0302] The top of the headrest 1800 is connected to the frame 1100 via a drive member 1320. In this embodiment, the drive member 1320 is in the form of a strap, and the top of the headrest 1800 is connected to the fixing piece 1570 via the drive member 1320. The drive member 1320 is adapted to pull the headrest 1800 to pivot relative to the backrest assembly 1300 during the pivoting 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. Specifically, the drive member 1320 between the fixing plate 1570 and the headrest plate 1800 maintains a generally constant length. When the tilt angle of the backrest assembly 1300 is increased, the distance between the top section 1311 of the backrest assembly 1300 and the fixing plate 1570 increases, and the distance between the headrest plate 1800 connected to the top section 1311 and the fixing plate 1570 also increases accordingly. The drive member 1320 will tighten the top of the headrest plate 1800. The tension applied by the drive member 1320 to the headrest plate 1800 causes the elastic member 1810 of the headrest plate to twist and deform, thereby driving the headrest plate 1800 to pivot relative to the backrest assembly 1300 in the direction from the head support surface to the back support surface. Figures 28 to 30As shown, when the child carrier 110 is in a lying position, under the pulling force of the drive component 1320, the headrest 1800 will be approximately perpendicular to the backrest assembly 1300. At this time, the headrest 1800 will act as a head shield.

[0303] During the process of switching the child carrier 110 from a lying position to a sitting position, that is, during the process of reducing the tilt angle of the backrest assembly 1300, the distance between the top section 1311 of the backrest assembly 1300 and the fixing plate 1570 decreases, and the distance between the headrest plate 1800 connected to the top section 1311 and the fixing plate 1570 also decreases accordingly. The pulling force of the drive component 1320 on the headrest plate 1800 weakens, and the elastic potential energy stored in the headrest plate elastic element 1810 due to torsional deformation is released. The elastic restoring force of the headrest plate elastic element 1810 will drive the headrest plate 1800 to pivot relative to the backrest assembly 1300 in the direction away from the back support surface from the head support surface. Figure 26 and 27 As shown, when the child carrier 110 is in a seated position, the drive component 1320 is basically in a relaxed state and there is no tension on the headrest 1800. Under the elastic restoring force of the headrest elastic component 1810, the headrest 1800 returns to its initial state, that is, the headrest 1800 is roughly parallel to the seat assembly 1200.

[0304] See Figure 26 and 27 The headrest plate 1800 has two mounting holes 1820 on its top side in the lateral direction. These two mounting holes 1820 are located near two opposite sides of the headrest plate 1800 in the lateral direction. In this embodiment, the drive member 1320 is a single strap, with both ends fixed to the two mounting holes 1820. The fixing of each end of the drive member 1320 to the corresponding mounting hole 1820 can be achieved by any suitable method known in the art. For example, the end of the drive member 1320 can pass through the mounting hole 1820 and be connected to a positioning member with a size larger than the diameter of the mounting hole 1820; or, the end of the drive member 1320 can pass through the mounting hole 1820 and be connected to a positioning post fixed to the headrest plate 1800. Further details are omitted here. In some other embodiments, the headrest plate 1800 may not have mounting holes 1820. Instead, the headrest plate 1800 may have any other fasteners such as buckles, clips, hooks, or seats, as long as they can fix the end of the drive member 1320.

[0305] The driving component 1320 includes a first headrest strap 1321, a second headrest strap 1322, and a backrest strap 1323. In this embodiment, the driving component 1320 is in the form of a single strap. The first headrest strap 1321, the second headrest strap 1322, and the backrest strap 1323 correspond to three segments of the driving component 1320. The first headrest strap 1321 and the second headrest strap 1322 are the beginning and end segments of the single strap, respectively, and the backrest strap 1323 is the middle segment 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 respectively connected to the fixing plates 1570 of the armrest 1113 of the corresponding side frame 1110. The backrest strap 1323 is used to support the upper middle part of the backrest tube 1310. The two ends of the backrest strap 1323 are respectively connected to the fixing plates 1570 of the armrest 1113 of the corresponding side frame 1110. The central part 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 vehicle 110. The length of the portion of the backrest strap 1323 from the strap adjustment device 1900 to each fixing piece 1570 can be adjusted by the strap adjustment device 1900, that is, the length of the backrest strap 1323 between the fixing piece 1570 and the strap adjustment device 1900. This length is hereinafter referred to as the effective backrest support length. The strap adjustment device 1900 is configured to adjust the length of the backrest strap 1323 (i.e., the central portion of the backrest strap 1323) housed therein, thereby adjusting the effective backrest support length. When the effective backrest support length is extended, the backrest assembly 1300 is allowed to pivot rearward relative to the seat assembly 1200 to increase the tilt angle of the backrest assembly 1300. Conversely, when the effective backrest support length is shortened, the backrest assembly 1300 is forced to pivot forward relative to the seat assembly 1200 to decrease the tilt angle of the backrest assembly 1300.

[0306] See Figure 28 and Figure 30The fixing piece 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 also includes a connecting segment extending from the second end of each of the first head strap 1321 and the second head strap 1322 to the end of the back 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 by, for example, sewing, thereby forming a closed annular segment that bypasses the connecting hole 1572. Thus, the second end of each of the first head strap 1321 and the second head strap 1322 is connected to the fixing piece 1570 via the connecting segment, and the end of the back strap 1323 is also connected to the fixing piece 1570 via the connecting segment. Taking the connecting segment of the drive member 1320 that bypasses the connecting hole 1572 as the starting segment, the drive member 1320 branches out into a first headrest strap 1321 and a backrest strap 1323, or a second headrest strap 1322 and a backrest strap 1323, at the sewn connection of the connecting segment. In this embodiment, the drive member 1320 can be passed through the connecting hole 1572 of the fixing piece 1570 first, then the two ends of the connecting segment can be sewn together, and then the fixing piece 1570 can be installed to the handrail 1113. In this embodiment, there are two fixing pieces 1570, and the drive member 1320 forms a sewn connection after bypassing each fixing piece 1570. The portion of the drive 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 drive member 1320 between two sewn connections is the backrest strap 1323. In other embodiments, any suitable method can be used to replace the sewing connection, such as knotting the two ends of the connecting segment together, as long as the first end strap 1321 and the back strap 1323, or the second end strap 1322 and the back strap 1323 are fixed relative to the fixing piece 1570.

[0307] As described above, in this embodiment, the driving member 1320 is in the form of a single strap. Using a single strap to simultaneously provide the first headrest strap 1321, the second headrest strap 1322, and the backrest strap 1323 facilitates the fixing of each part of the driving member 1320, saves steps, and simplifies the structure of the fasteners used to fix the parts of the driving member 1320. In other embodiments, the driving member 1320 may include multiple straps. For example, it may include three straps: one used as the backrest strap 1323, and the other two used as the first headrest strap 1321 and the second headrest strap 1322, respectively. That is, the first headrest strap 1321, the second headrest strap 1322, and the backrest strap 1323 are each implemented by at least one strap. The connecting section of the driving member 1320 may be implemented 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. Therefore, the first end strap 1321, the second end strap 1322, and the back strap 1323 can each be individually fixed to the fixing piece 1570. In this case, the connecting segment does not need to be formed as a closed annular segment as in this embodiment, and can be any form that can be connected to the fixing piece.

[0308] In this embodiment, side plates 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 drive member 1320 is adapted to pass through the corresponding side plate 1330 and connect to the headrest plate 1800. The side plate 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 has a through hole communicating with the guide groove 1331. Each of the first headrest strap 1321 and the second headrest strap 1322 is adapted to pass through the guide groove 1331 and the two guide portions 1332 of the corresponding side plate 1330. Specifically, if the seam connection is used as the starting point of the first headrest strap 1321 or the second headrest strap 1322, the first headrest strap 1321 or the second headrest strap 1322 passes sequentially through the guide portion 1332 located at the lower or front end of the guide groove 1331, the guide groove 1331, and the guide portion 1332 located at the upper or rear end of the guide groove 1331, and then connects to the headrest plate 1800. The side plate 1330 is also provided with a strip hole 1333 suitable for the backrest strap 1323 to pass through. If the seam connection on one side of the frame 1100 is used as the starting point of the backrest strap 1323, the backrest strap 1323 passes sequentially through the strip hole 1333 of the side plate 1330 on the same side as the seam connection, the strap adjustment device 1900, and the strip hole 1333 of the side plate 1330 on the opposite side of the seam connection, and then reaches the seam connection 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 drive member 1320, as well as the drive member 1320 and other parts of the child carrier 110, do not interfere with each other during operation.

[0309] In this embodiment, the two ends of the backrest strap 1323 used to support the upper middle part of the backrest tube 1310 are respectively connected to the fixing piece 1570 of the armrest 1113 of the corresponding side frame 1110. 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 piece 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, the distance between the fixing plate 1570 and the strap 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 tilt angle of the backrest assembly 1300 is adjusted, for example, to switch the child carrier 110 from a sitting position to a lying position, the strap adjustment device 1900 releases at least a portion of the backrest strap 1323 housed therein, thereby extending the effective length of the backrest support of the drive member. This allows the backrest assembly 1300 to pivot rearward relative to the seat assembly 1200 to increase the tilt angle of the backrest assembly 1300 until the backrest assembly 1300 is substantially parallel to the seat assembly 1200. Simultaneously, as the backrest assembly 1300 pivots rearward relative to the seat assembly 1200, the distance between the fixing piece 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 will pull the top of the headrest plate 1800, causing the headrest plate 1800 to pivot relative to the backrest assembly 1300 in the direction from the head support surface to the back support surface, until the headrest plate 1800 is substantially perpendicular to the backrest assembly 1300. In this way, in the lying position, the headrest plate 1800 can act as a headrest to prevent the child's head from sliding out or protruding from the child carrier 110 while lying down.

[0310] It is understood that the headrest and harness settings provided in this embodiment are also applicable to child vehicles in the first to fourth embodiments or other similar embodiments described above.

[0311] See Figure 28In this embodiment, a reinforcing rod 1115 extending generally in the lateral direction is provided between the two side frames 1110 of the frame 1100. Both ends of the reinforcing rod 1115 are fixedly connected to the two side frames 1110. Specifically, one end of the reinforcing rod 1115 can be fixedly connected to the lower part of the armrest 1113 of one side frame 1110, and the other end of the reinforcing rod 1115 can be fixedly connected to the lower part of the armrest 1113 of the other side frame 1110. The end of the reinforcing rod 1115 can be fixedly connected to the lower part of the armrest 1113 by, for example, welding, bonding, keying, pinning, riveting, etc. The reinforcing rod 1115 enhances the overall strength of the frame 1100 and prevents the frame 1100 from swaying left and right. In particular, it prevents the frame 1100 from shaking violently when a child is rocking inside the child vehicle.

[0312] It is understood that the reinforcing bar 1115 provided in this embodiment is also applicable to child vehicles in the first to fourth embodiments or other similar embodiments described above.

[0313] Sixth Embodiment

[0314] The sixth embodiment of this utility model provides a strap adjustment device. As described in the embodiments above, the strap adjustment device can be arranged on the rear side of the backrest of the child vehicle. Of course, the strap adjustment device can also be arranged in other suitable positions on the child vehicle, as long as it is convenient for the user to operate.

[0315] See Figure 31 As shown in Figure 32, the strap adjustment device 1900 includes a first outer cover 1910, a second outer cover 1920, and an inner cover 1930 located between the first outer cover 1910 and the second outer cover 1920. Two holes 1934 for the back strap 1323 to pass through are provided on opposite sides of the inner cover 1930. The strap adjustment device 1900 also includes a reel 1940, which is configured to rotatably rotate between the inner cover 1930 and the second outer cover 1920, on which the back strap 1323 (see Figure 33) is wound. Both ends of the back strap 1323 extend out of the reel 1940 and through the holes 1934 to the outside of the strap adjustment device 1900. It should be noted that in Figure 33, the back strap 1323 is shown only as a line for illustrative purposes.

[0316] As shown in Figure 33, the reel 1940 includes a first reel 1940A and a second reel 1940B in an annular shape. The first reel 1940A and the second reel 1940B are connected by an intermediate connecting part 1940C, forming a circumferentially extending winding groove 1941 between the first reel 1940A and the second reel 1940B. The first reel 1940A and the intermediate connecting part 1940C together form a mounting hole 1942 located within the reel 1940. The first reel 1940A is also provided with two guide grooves 1945 and 1945'. These two guide grooves 1945 and 1945' can be symmetrically or asymmetrically arranged on the first reel 1940A, and their specific positions can be adjusted according to actual needs.

[0317] The belt adjustment device 1900 also includes a spring 1950 located inside the reel 1940. The spring 1950 is disposed in a mounting hole 1942 within the reel 1940. The belt adjustment device 1900 also includes a connector 1960 for securing the belt adjustment device 1900 to the backrest. For example, the connector 1960 can be disposed on the front side of the backrest panel of the backrest, and the second outer cover 1920 can be disposed on the rear side of the backrest panel of the backrest. Then, fasteners such as screws can be sequentially inserted through the connector 1960, the backrest panel, the second outer cover 1920, and the first outer cover 1910, thereby securing the belt adjustment device 1900 to the backrest. Of course, the connector 1960 can also be omitted, and the housing of the belt adjustment device 1900 can be directly secured to the backrest by fasteners such as screws.

[0318] As described in the embodiments above, the backrest strap 1323 supports the upper 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 keep the backrest strap 1323 taut while supporting the backrest, the reel 1940 winds a portion of the backrest strap 1323 (e.g., the central portion of the backrest strap 1323) around itself and winds or unwinds this portion of the backrest strap 1323 as needed by its own rotation. The reel 1940 has a winding groove 1941 on its circumferential side, in which the backrest strap 1323 is wound.

[0319] See Figure 9The spring 1950 is configured to drive the reel 1940 to rotate in the winding direction D1. Thus, by means of the spring 1950's elastic restoring force, the reel 1940 can be driven to rotate in the winding direction D1, at which point the back strap 1323 is wound onto the reel 1940. Conversely, when the reel 1940 rotates in the unwinding direction D2, opposite to the winding direction D1, the spring 1950 is wound tightly, at which point the back strap 1323 is unwound from the reel 1940. Specifically, the spring 1950 is wound and housed in a mounting hole 1942 within the reel 1940. The first end 1951 of the spring 1950 engages with the fixing post 1931 of the inner cover 1930, and the second end 1952 engages with a groove 1943 on the side wall of the mounting hole 1942 of the reel 1940.

[0320] To prevent the spring 1950 from disengaging from the mounting hole 1942 of the reel 1940, an auxiliary disc 1970 is provided outside the mounting hole 1942. The auxiliary disc 1970 is configured to block the spring 1950. Furthermore, the auxiliary disc 1970 also assists in winding the back strap 1323. Referring to Figure 34, the auxiliary disc 1970 includes a body 1971 and a first limiting piece 1972 and a second limiting piece 1973 extending outward from the outer periphery of the body 1971. The first limiting piece 1972 and the second limiting piece 1973 are axially spaced to form a limiting channel 1974 through which the back strap 1323 passes. The limiting channel 1974 prevents the back strap 1323 from slipping off the auxiliary disc 1970.

[0321] In this embodiment, the back strap 1323 only wraps around half of the outer periphery of the auxiliary disk 1970, and the first limiting piece 1972 and the second limiting piece 1973 are only disposed on the outer periphery of half of the auxiliary disk 1970. In some other embodiments, the first limiting piece 1972 and the second limiting piece 1973 may also be disposed on the entire outer periphery of the auxiliary disk 1970.

[0322] The following will describe in detail, by way of example, how the back strap 1323 is wound onto the reel 1940. The back strap 1323 enters the housing of the strap adjusting device 1900 through a hole 1934 on the circumferential side of the inner cover 1930, then enters the placement hole 1942 through one of the guide grooves 1945 on the reel 1940, then passes through the limiting channel 1974 of the auxiliary disc 1970, bypasses the portion of the reel 1940 with the first limiting piece 1972 and the second limiting piece 1973, so that the back strap 1323 passes around the placement hole 1942, then exits the placement hole 1942 through another guide groove 1945' on the reel 1940, then winds several turns in the winding groove 1941 of the reel 1940, and finally extends out of the housing of the strap adjusting device 1900 through another opening on the opposite circumferential side of the inner cover 1930. By passing the back strap 1323 through the limiting channel 1974 of the auxiliary disc 1970, the tension of the back strap 1323 can be increased, thereby improving the stability of the back strap 1323 unwinding from the reel 1940.

[0323] When adjusting the angle of the backrest assembly 1300 relative to the seat assembly 1200 to switch the child carrier 110 from a reclining position to a sitting position, it is necessary to shorten the effective length of the backrest support of the backrest strap 1323. The reel 1940 can wind up the slack backrest strap 1323, thereby allowing the spring 1950 to drive the reel 1940 to rotate in the winding direction D1. When the backrest assembly 1300 pivots to be substantially perpendicular to the seat assembly 1200 (i.e., the backrest assembly 1300 is in an upright position), most of the backrest strap 1323 (e.g., the backrest strap 1323) is wound on the reel 1940, with only a small portion extending out of the reel 1940 and secured to the retaining plate 1570. At this point, the reel 1940 can no longer rotate in the winding direction D1.

[0324] When adjusting the angle of the backrest assembly 1300 relative to the seat assembly 1200 to switch the child vehicle 110 from a sitting position to a reclining position, it is necessary to extend the effective length of the backrest support of the backrest strap 1323. When the backrest assembly 1300 pivots to be substantially parallel to the seat assembly 1200 (i.e., the backrest assembly 1300 is in a horizontal position), most of the backrest strap 1323 (e.g., the backrest strap 1323) unwinds from the reel 1940, leaving only a small portion positioned on the reel 1940. At this point, the reel 1940 can no longer rotate in the unwinding direction D2. Furthermore, during the unwinding process of the backrest strap 1323 from the reel 1940, it drives the reel 1940 to rotate in the unwinding direction D2, thereby tightening the spring 1950 positioned within the reel 1940.

[0325] See Figures 32 and 33. Figure 37 and Figure 38The reel 1940 is equipped with a ratchet 1944 that rotates coaxially, and the belt adjustment device 1900 is also equipped with a pawl 1990 that cooperates with the ratchet 1944. The ratchet 1944 is attached to the second disc 1940B of the reel 1940, which can achieve unidirectional positioning.

[0326] like Figure 37 As shown, the rotation of ratchet 1944 along the unwinding direction D2 is selectively blocked by pawl 1990, preventing reel 1940 from rotating along the unwinding direction D2. However, the rotation of ratchet 1944 along the winding direction D1 is not blocked by pawl 1990. When the rotation of ratchet 1944 on reel 1940 along the unwinding direction D2 is blocked by pawl 1990, reel 1940 also cannot rotate along the unwinding direction D2, the belt adjustment device 1900 is locked, and ratchet 1944 can only rotate along the winding direction D1, allowing backrest assembly 1300 to freely pivot towards the upright position to the desired position and remain at that desired position, but not towards the horizontal position.

[0327] like Figure 38 As shown, when the pawl 1990 moves to the unlocked position, so that the rotation of the ratchet 1944 on the reel 1940 along the unwinding direction D2 is no longer blocked by the pawl 1990, the belt adjustment device 1900 is in the unlocked state. The ratchet 1944 can rotate both along the winding direction D1 and the unwinding direction D2, allowing the backrest assembly 1300 to pivot not only towards the upright position to the desired position, but also towards the horizontal position to the desired position. After the backrest assembly 1300 has pivoted towards the upright or horizontal position to the desired position, simply returning the pawl 1990 to the desired position... Figure 37 In the locked position shown, the rotation of the ratchet 1944 on the reel 1940 along the unwinding direction D2 is again blocked by the pawl 1990, and the backing assembly 1300 will remain in the desired position. Through the cooperation of the ratchet 1944 and the pawl 1990, the belt adjustment device 1900 can achieve one-way locking and one-way unlocking of the pivoting of the backing assembly 1300 toward the horizontal position.

[0328] It is understood that the above describes an embodiment in which the rotation of the ratchet 1944 along the unwinding direction D2 is selectively blocked by the pawl 1990, but the present invention is not limited thereto.

[0329] 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 prevents 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.

[0330] See Figure 37 and Figure 38 The connecting side 1991 of the pawl 1990 is pivotally connected to the connecting portion 1932 on the inner cover 1930, allowing the free side 1992 of the pawl 1990 to pivot relative to the connecting portion 1932. Figure 37 As shown, when the free side 1992 of the pawl 1990 pivots to the locked position, the engaging portion 1993 of the free side 1992 of the pawl 1990 engages with the ratchet teeth on the ratchet 1944, thereby preventing the ratchet 1944 from rotating in the unwinding direction D2. Figure 38 As shown, when the free side 1992 of the pawl 1990 pivots to the unlocked position, the engaging portion 1993 of the pawl 1990 disengages from the ratchet teeth on the ratchet wheel 1944, thereby allowing the 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 from the ratchet teeth on the ratchet wheel 1944, in which case the movement of the pawl 1990 is a sliding movement.

[0331] The belt adjustment device 1900 also includes an elastic element 1980, which is configured to bias the pawl 1990 toward the locking position, thereby causing the pawl 1990 to tend to block the ratchet 1944 from rotating in the unwinding direction D2. In this embodiment, the elastic element 1980 is a torsion spring disposed around the connecting side 1991 of the pawl 1990, with the first end 1981 abutting against the inner upper wall of the inner cover 1930, and the second end 1982 of the elastic element 1980 connected to the protrusion 1994 in the middle of the pawl 1990. In other embodiments, the elastic element 1980 may take the form of a tension spring, compression spring, elastic cord, or elastic body, as long as it can bias the pawl 1990 toward the locking position.

[0332] When the user adjusts the backrest assembly 1300 of the child carrier 110 to pivot towards the horizontal position, the reel 1940 will rotate in the unwinding direction D2. However, the pawl 1990 tends to block the ratchet 1944 and the reel 1940 from rotating in the unwinding direction D2 under the action of the elastic member 1980. 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 (that is, to change the strap adjustment device 1900 from the locked state to the unlocked state and keep it in the unlocked state) before pulling the backrest assembly 1300 of the child carrier 110 to pivot towards the horizontal position.

[0333] Referring to Figure 32, in this embodiment, the operating mechanism for driving the pawl 1990 to place the strap adjustment device 1900 in the unlocked state includes a handle 1901 and a drive member 1902. A first end of the drive member 1902 is connected to the free side 1992 of the pawl 1990, and a second end of the drive member 1902 is connected to the handle 1901. The first outer cover 1910 and the inner cover 1930 are respectively provided with a guide hole 1911 and a through hole 1933 for the drive member 1902 to pass through. The guide hole 1911 on the first outer cover 1910 and the through hole 1933 on the inner cover 1930 are formed at locations corresponding to the pawl 1990, so that the drive member 1902 can pass through the through hole 1933 and / or the guide hole 1911 to connect with the pawl 1990. When the user pulls the handle 1901, the pulling force is transmitted to the pawl 1990 through the drive component 1902, causing the pawl 1990 to move toward the release position.

[0334] In this embodiment, the pawl 1990 and ratchet 1944 engage to maintain the backrest assembly 1300 in any desired position between the upright and horizontal positions. Furthermore, unless the user pulls the handle 1901 to release the strap adjustment device 1900, the backrest assembly 1300 cannot pivot further towards the horizontal position because the rotation of the ratchet 1944 along the unwinding direction D2 is blocked by the pawl 1990 (see [link to previous embodiment]). Figure 37 The effective length of the back support of the back strap 1323 cannot be further extended.

[0335] However, when the belt adjustment device 1900 is in the locked state, the pawl 1990 does not obstruct the ratchet 1944 from rotating in the winding direction D1. When the ratchet 1944 rotates in the winding direction D1, the pawl 1990 will slide over the back of the teeth of the ratchet 1944. Due to the biasing force of the elastic element 1980 on the pawl 1990, the rotation of the ratchet 1944 in the winding direction D1 will be subject to a certain resistance.

[0336] When a child is leaning against or lying on the backrest of the child carrier 110, and the backrest assembly 1300 is in a non-upright position (i.e., a horizontal position, or any position deviating from the upright position towards the horizontal position), 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 1950 positioned within the reel 1940 is wound up and undergoes elastic deformation. In this embodiment, the spring 1950 is configured to have an elastic restoring force (also referred to as a rewinding force) greater than the resistance exerted by the pawl 1990 on the rotation of the ratchet 1944 in the winding direction D1. When the child gets up and leaves the child carrier 110, the elastic restoring force of the spring 1950 drives the reel 1940 to rotate in the winding direction D1, causing the backrest strap 1323 to be rewound onto the reel 1940, thereby shortening the effective back support length of the backrest strap 1323. In this way, the backrest component 1300 can automatically return to the upright position without the user having to push it, making it easier and less strenuous to fold up the child vehicle 110.

[0337] Furthermore, there may be situations where the weight exerted on the strap adjustment device 1900 by other components of the child carrier 110 exceeds the restoring force of the spring 1950. However, even in such cases, the user only needs to slightly push the backrest assembly 1300 upwards to eliminate the influence of the weight of the other components of the child carrier 110 on the strap adjustment device 1900. The restoring force of the spring 1950 will then drive the reel 1940 to rotate along the winding direction D1, causing the backrest assembly 1300 to automatically return to an upright position. Therefore, in this situation, when the child carrier 110 needs to be folded up, even if the child carrier 110 is in a lying position, only one slight upward push from the user is required for the backrest assembly 1300 to automatically return to an upright position, making folding up easier and less strenuous.

[0338] It is understood that the strap adjustment device provided in this embodiment can be applied to child vehicles in the first to fifth embodiments or other similar embodiments.

[0339] Seventh Embodiment

[0340] Figure 39 and Figure 40The illustration shows a child vehicle according to a seventh embodiment of the present invention in both forward and rearward modes. The child vehicle includes a frame 210, a handlebar 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 explanation, only a portion of the internal frame of the seat 2700, such as the backrest support and leg support, is schematically shown in the figures; the seat plate of the seat 2700 is not shown. The child vehicle also includes a front armrest 2130, which is primarily for a child inside the child vehicle to grasp for balance or body support.

[0341] The frame 210 includes a support rod 2120 extending generally along the longitudinal direction of the child vehicle, with a movable support 2110 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... Figure 39 The first angular position shown is rotated to Figure 40 The second angular position is shown. (As shown) Figure 39 As shown, when driver 220 is in the first angle position, driver 220 is roughly located at the rear of the child vehicle, and the child vehicle is in forward-facing mode. At this time, the forward direction of travel of the child vehicle is... Figure 39 The direction indicated by F1 in the diagram corresponds to the front of the child vehicle. For example... Figure 40 As shown, when driver 220 is in the second angle position, driver 220 is roughly located in front of the child vehicle, and the child vehicle is in rearward mode. At this time, the forward direction of travel of the child vehicle is... Figure 40 The direction indicated by F2 corresponds to the rear of the child vehicle. In this text, the driver 220 turning from the first angle position to the second angle position, or from the second angle position to the first angle position, is referred to as a change of direction for the driver 220. The change of direction for the driver 220 causes the child vehicle to switch between forward and backward modes.

[0342] 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, it drives the movable support 2110 to move relative to the frame. For example, when the child vehicle moves from... Figure 39 The forward mode shown has been switched to Figure 40 In the rearward mode shown, the movable support 2110 is along the longitudinal direction of the child vehicle (specifically, Figure 39 The direction F1) moves relative to the frame 210, causing the seat 2700 mounted on the movable bracket 2110 to move from Figure 39 The first position shown is moved to Figure 40 The second position shown. When the child vehicle is from Figure 40The backward mode is switched to as shown. Figure 39 In the forward-facing mode shown, the movable support 2110 is along the longitudinal direction of the child vehicle (specifically, Figure 40 The direction F2) moves relative to the frame 210, causing the seat 2700 to move from Figure 40 The second position shown returns to Figure 39 The first position shown. (Reference) Figure 40 When seat 2700 moves to the second position, seat 2700 is closer to the front armrest 2130. In this situation, compared to Figure 39 As shown, the child's seating space is compressed, thus reducing the child's riding comfort.

[0343] In this embodiment, the front armrest 2130 is movably connected to the 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 vehicle switches from a forward-facing mode to a rear-facing mode, the movable support 2110 is adapted to move relative to the frame 210 along the longitudinal direction of the child vehicle, so that the seat 2700 moves 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 vehicle switches from a rear-facing mode to a forward-facing mode, the movable support 2110 is adapted to move relative to the frame 210 along the longitudinal direction of the child vehicle, so that the seat 2700 returns 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 decrease the distance between the front armrest 2130 and the seat 2700.

[0344] 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 have a first angle relative to the backrest, and when the seat 2700 is in a second position, the front armrest 2130 is adapted to have a second angle relative to the backrest that is different from the first angle, for example, a second angle greater than the first angle. (Reference) Figures 39 to 41 The backrest of seat 2700 is schematically indicated by reference numeral 2310 in the attached drawing. For ease of explanation, in Figure 40 and Figure 41 Only the backrest support of the backrest 2710 is shown in the diagram. When the rider 220 rotates to switch the child vehicle from forward-facing mode to rear-facing mode, the backrest 2710 moves forward relative to the frame 210 along with the movable support 2110. Therefore, when the child vehicle is in a forward-facing position... Figure 40 In the case shown, compared to Figure 39As shown, the distance between the front armrest 2130 and the backrest 2710 is reduced, compressing the child's seating space. 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.

[0345] For example, such as Figure 39 As shown, when the child vehicle is in forward-facing mode, the angle between the front armrest 2130 and the backrest 2710 is a first angle A, and at this time, the front armrest 2130 has a first distance relative to the backrest 2710. Figure 40 and Figure 41 As shown, when the child vehicle is in rear-facing mode, the angle of the front armrest 2130 relative to the backrest 2710 can be adjusted from a first angle A to a second angle B, where the second angle B is greater than the first angle A. At this time, the front armrest 2130 has a second distance relative to the backrest 2710 that is greater than the first distance. Figure 40 and Figure 41 The comparison of the two cases shown shows 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 the front armrest 2130 is at a second angle B relative to the backrest 2710 (i.e., the second distance) is greater than the distance between the front armrest 2130 and the backrest 2710 when the front armrest 2130 is at a first angle A relative to the backrest 2710 (i.e., the first distance). Figure 42 This shows the increased seating space of the child vehicle after the distance between the front armrest 2130 and the backrest 2710 is increased.

[0346] In this embodiment, the child's seating space can be changed by adjusting the angle of the front armrest 2130 relative to the backrest 2710. In particular, when the child vehicle is switched from forward-facing mode to rear-facing mode, the seating space that has been reduced due to the change of direction can be expanded.

[0347] refer to Figure 43In this embodiment, the child vehicle also 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 frame 210 via the angle adjustment device 2200. It is understood that the child vehicle includes two angle adjustment devices 2200, with both ends of the front armrest 2130 connected to the frame 210 via these two angle adjustment devices 2200 respectively. These two angle adjustment devices 2200 are fixedly mounted on both sides of the frame 210, and both ends of the front armrest 2130 are, for example, detachably connected to these two angle adjustment devices 2200. Alternatively, one end of the front armrest 2130 may be fixedly connected to one of the angle adjustment devices 2200, and the other end may be detachably connected to the other angle adjustment device 2200. The two angle adjustment devices 2200 have the same structure; the following description will use one of the angle adjustment devices 2200 as an example.

[0348] refer to Figures 44 to 45 The angle adjustment device 20 includes a fixed base 2210, a rotating base 2220, and an angle positioning element 2230. The fixed base 2210 is disposed on the frame 210. The fixed base 2210 can be permanently connected to the frame 210 by means such as welding or bonding, or it can be installed on the frame 210 by fasteners such as threaded fasteners, pin fasteners, or rivet fasteners, or it can be integrally formed with the part of the frame 210 used to mount the fixed base 2210. One end of the rotating base 2220 is rotatably connected to the fixed base 2210 relative 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 is rotatable along the outer peripheral surface of the fixed base 2210. In this embodiment, the fixed base 2210 is generally cylindrical, and one end of the rotating base 2220 has a cylindrical cavity that at least partially accommodates the fixed base 2210. One end of the swivel base 2220 is adapted to house the fixed base 2210 within its cylindrical cavity and is rotatable about the fixed base 2210. The front armrest 2130 may, for example, be detachably attached to the other end of the swivel base 2220.

[0349] An angular 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 be movable between a locked position and a released position. When the angular positioning member 2230 is in the locked position, it restricts the rotation of the rotating base 2220 relative to the fixed base 2210, while when the angular positioning member 2230 is in the released position, it allows the rotation of the rotating base 2220 relative to the fixed base 2210.

[0350] The outer peripheral surface of the fixing base 2210 is provided with at least two angular positioning holes 2211 spaced apart circumferentially. 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 base 2210 is provided with two angular positioning holes 2211, and the cooperation of the angular positioning member 2230 with these two angular positioning holes 2211 can lock the front armrest 2130 at... Figure 39 or Figure 40 The first angular position shown (at which point the front armrest 2130 has a first angle A relative to the backrest 2710) and Figure 41 The second angle position shown (at this time, the front armrest 2130 has a second angle B relative to the backrest 2710). Figure 45 It is shown that when the front armrest 2130 is in the first angle position, the angle positioning member 2230 engages with one of the two angle positioning holes 2211. Figure 45 The diagram shows the front armrest 2130 in the second angular position, with the angle positioning member 2230 engaging with the other of the two angle positioning holes 2211. It will be understood that in other embodiments, the mounting base 2210 may be provided with more than two angle positioning holes 2211, thereby enabling adjustment of the front armrest 2130 at more than two angular positions.

[0351] When the angle positioning member 2230 is in the locked position, a portion of the angle positioning member 2230 extends from the rotating base 2220 and selectively inserts into one of the two angle positioning holes 2211. At this time, the rotating base 2220 cannot rotate relative to the fixed base 2210. When the angle positioning member 2230 is in the released position, this portion of the angle positioning member 2230 retracts from the selected angle positioning hole 2211 and returns to the rotating base 2220. At this time, the rotating base 2220 can rotate relative to the fixed base 2210.

[0352] Continue to refer to Figures 44 to 46The 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 operate to drive the angle positioning member 2230 from the locked position to the released position. Specifically, the angle adjustment actuator 2250 is movably disposed in the rotary seat 2220. A portion of the angle adjustment actuator 2250 protrudes from the housing of the rotary seat 2220 so that a user can operate the angle adjustment actuator 2250 by means of, for example, pressing, thereby causing the angle adjustment actuator 2250 to move relative to the rotary seat 2220. The angle adjustment actuator 2250 has a positioning groove 2251 through which a positioning post 2221 disposed in the rotary seat 2220 passes to define the range of movement of the angle adjustment actuator 2250 and guide the direction of movement of the angle adjustment actuator 2250. The angle adjustment actuator 2250 also has a drive groove 2252 through which the drive column 2231 of the angle positioning member 2230 passes. During the movement of the angle adjustment actuator 2250 relative to the rotary seat 2220, the drive groove 2252 drives the drive column 2231 to move along the drive groove 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 inside the rotary seat 2220, with one end abutting against the inner wall of the rotary seat 2220 and the other end abutting against the angle positioning member 2230, giving the angle positioning member 2230 a tendency to move towards the locked position.

[0353] The following example illustrates the process of adjusting the angle position of the front armrest 2130 using the angle adjustment device 2200. Currently, the armrest 2130 is in... Figure 39 or Figure 40When the angled position is shown, the angle positioning member 2230 engages with the angle positioning hole 2211 corresponding to the first angled position, and the front armrest 2130 is locked in the first angled position. When the user presses the angle adjustment actuator 2250, the movement of the angle adjustment actuator 2250 relative to the rotating seat 2220 overcomes the bias applied to the angle positioning member 2230 by the first elastic member 2240, driving the drive column 2231 to move along the drive groove 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 angled position. After the angle positioning member 2230 disengages from the angle positioning hole 2211 corresponding to the first angled position, the user can rotate the front armrest 2130 and release the angle adjustment actuator 2250. When the rotation of the rotating base 2220 relative to the fixed base 2210 aligns the angle positioning member 2230 with the angle positioning hole 2211 corresponding to the second angle position, under the elastic restoring force of the first elastic member 2240, the angle positioning member 2230 moves from the released position to the locked position, thereby engaging with the angle positioning hole 2211 corresponding to the second angle position. At this time, the front armrest 2130 is in... Figure 41 The second angle position is shown, and it is locked in the second angle position. The process of adjusting the front armrest 2130 from the second angle position to the first angle position is similar to the above process, and will not be described again here.

[0354] Eighth embodiment

[0355] Figure 47 This illustration shows an eighth embodiment of a child carrier according to the present invention. The main difference between the eighth embodiment and the seventh embodiment described above lies in the arrangement of the front armrest and the arrangement of the movable support frame; similarities or differences with the seventh embodiment described above will not be repeated here.

[0356] One aspect of this embodiment provides an adjustment method for the position adjustment of the front armrest that differs from that of the seventh embodiment described above. In this embodiment, the front armrest 2130 is telescopically connected to the frame 210. Specifically, the child vehicle also includes a connecting sleeve 2300, which has a first end 2310 and a second end 2320 opposite each other in the axial direction X2 (see reference). Figure 50The first end 2310 of the connecting sleeve 2300 is fixedly connected to the frame 210. The first end 2310 of the connecting sleeve 2300 can be installed to the frame 210 by fasteners such as threaded fasteners, pin fasteners, rivet fasteners, etc., or by 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 retractable relative to the connecting sleeve 2300. By adjusting the degree of retraction of the end of the front armrest 2130 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 changing the seating space provided by the child vehicle. Specifically, for example, when the child vehicle switches from forward-facing mode to rear-facing mode, causing the position of the seat 2700 to move forward relative to the frame 210, the end of the front armrest 2130 can be extended relative to the connecting sleeve 2300, thereby increasing the child's seating space.

[0357] It is understood that the child vehicle includes two connecting sleeves 2300, which are fixedly mounted on both sides of the frame 210. The two ends of the front armrest 2130 are slidably disposed 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 to it as an example.

[0358] refer to Figures 48 to 50 The front armrest 2130 has an extension 2131 at one end, which is slidably inserted into the second end 2320 of the connecting sleeve 2300, such that the extension 2131 is retractable relative to the connecting sleeve 2300. The second end 2320 of the connecting sleeve 2300 has a receiving cavity for receiving at least a portion of the extension 2131. When the seat 2700 is in a first position, the front armrest 2130 is adapted to adjust such that the portion of the extension 2131 extending from the second end 2320 has a first length (see reference). Figure 48 At this time, the front armrest 2130 has 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 such 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 reference). Figure 49 At this time, the front armrest 2130 has 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 usage requirements, that is, the position of the front armrest 2130 relative to the seat 2700 can be adjusted, thereby changing the seating space of the child vehicle.

[0359] The extension 2131 is provided with a length positioning member 21311, which is configured to be movable between a locked position and a released position. When the length positioning member 21311 is in the locked position, it restricts the sliding of the extension 2131 relative to the connecting sleeve 2300; that is, the extension 2131 is locked in the receiving cavity of the second end 2320 of the connecting sleeve 2300, and the position of the extension 2131 relative to the connecting sleeve 2300 remains unchanged. When the length positioning member 21311 is in the released position, it allows the extension 2131 to slide relative to the connecting sleeve 2300; that is, the position of the extension 2131 relative to the connecting sleeve 2300 can be changed, thereby at least partially pulling out the portion of the extension 2131 received in the receiving cavity of the second end 2320 of the connecting sleeve 2300 from the receiving cavity, or at least partially pushing the portion of the extension 2131 not received in the receiving cavity into the receiving cavity.

[0360] The extension 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 2131. Specifically, the connecting end of the spring piece 21312 is fixedly connected to the extension 2131 near its end. The other end of the spring piece 21312 is a free end. A length positioning member 21311 is provided on the spring piece 21312 and located between the connecting end and the free end of the spring piece 21312. The spring piece 21312 is adapted to hold 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, which is configured to be operable to drive the length positioning member 21311 from the locked position to the released position.

[0361] The inner wall of the receiving cavity at the second end 2320 of the connecting sleeve 2300 is provided with two length positioning holes 2321 spaced axially at intervals of X2. When the length positioning member 21311 is in the locked position, it selectively inserts into one of the two length positioning holes 2321, and when it is in the released position, it retracts from the selected length positioning hole 2321. The engagement of the length positioning member 21311 with the two length positioning holes 2321 locks the front armrest 2130 in place. Figure 48 The first length position shown (at which point the portion of the front armrest 2130 extending from the second end 2320 has a first length) and Figure 49 The second length position shown (at this time, the portion of the front armrest 2130 extending from the second end 2320 has a second length). Figure 48 The diagram shows that when the front armrest 2130 is in the first length position, the length positioning member 21311 engages with the length positioning hole 2321 located at the proximal end; Figure 49 The diagram shows the front armrest 2130 in its second length position, with the length positioning member 21311 engaging with the length positioning hole 2321 located 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 adjustment of the front armrest 2130 in more than two length positions.

[0362] The following example illustrates the process of adjusting the length and position of the front armrest 2130 by engaging the extension 2131 of the front armrest 2130 with the connecting sleeve 2300. Currently, the armrest 2130 is in... Figure 57 In the first length position shown, the length positioning member 21311 engages with the length positioning hole 2321 located at the proximal end, and the front armrest 2130 is locked in the first length position. When the user presses the length adjustment actuator 21313, the actuator moves the spring piece 21312, 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 disengages 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, causing the length positioning member 21311 to align with the length positioning hole 2321 located at the distal end, under the action of the elastic restoring force of the spring piece 21312, the length positioning member 21311 moves from the released position to the locked position, thereby engaging with the length positioning hole 2321 located at the distal end. At this time, the front armrest 2130 is in... Figure 49 The second length position is shown, and it 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 described again here.

[0363] Another aspect of this embodiment provides a control method different from the movement control of the movable support in the seventh embodiment described above. (See reference...) Figure 51Similar to the seventh embodiment described above, the child vehicle 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 vehicle between a forward-facing mode and a backward-facing mode. The difference from the seventh embodiment is that the movable support 2110 is configured to be adjustable, allowing it to selectively move forward or backward relative to the frame 210 along the longitudinal direction of the child vehicle independently of the movement of the rider 220. That is, 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 has changed direction, the movement of the movable support 2110 relative to the frame 210 can be adjusted independently. Specifically, when the child vehicle switches from a forward-facing mode to a rearward-facing mode, the movable support 2110 is adapted to move forward relative to the frame 210 along the longitudinal direction of the child vehicle. When the child vehicle switches from a rearward-facing mode to a forward-facing mode, the movable support 2110 is adapted to move rearward relative to the frame along the longitudinal direction of the child vehicle.

[0364] In this embodiment, the child vehicle also includes a movement adjustment device 2400. The movement adjustment device 2400 is user-operable to adjust the position of the movable support 2110 relative to the frame 210 on the vehicle frame 210. (See reference) Figure 52 The frame 2110 includes two support rods 2120 located on the left and right sides, and two movable supports 2110 are slidably connected to a corresponding support rod 2120. Correspondingly, the child vehicle includes two movement adjustment devices 2400 configured to respectively restrict and allow movement of the two movable supports 2110 relative to the frame 210. Each movable support includes a sliding sleeve 2111 and a movable support body 2112. The sliding sleeve 2111 is slidably fitted onto the support rod 2120. The movable support body 2112 is fixed to the sliding sleeve 2111 and is adapted to mount the seat 2700. The seat plate can be mounted to the movable support body 2112 using fasteners such as threaded fasteners, pin fasteners, rivet fasteners, etc., or by a permanent connection such as welding or bonding.

[0365] refer to Figures 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 an unlocked position. When the locking member 2410 is in the locked position (e.g., Figure 54 As shown), the movement of the movable bracket 2110 relative to the frame 210 is restricted, while when the locking member 2410 is in the unlocked position (as shown), Figure 55As shown), the movable bracket 2110 is allowed to move relative to the 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, it remains in the locked position, and when the locking member 2410 is in the released state, it automatically returns to the unlocked position.

[0366] The sliding sleeve 2111 has a sliding channel 21111 through which the support rod 2120 passes. The support rod 2120 passes through the sliding channel 21111 into the sliding sleeve 2111, allowing the sliding sleeve 2111 to slide along the support rod 2120. A locking member 2410 is movably disposed on the sliding sleeve 2111 relative to the sliding sleeve 2111. When the locking member 2410 moves to the locked position, it restricts the sliding of the sliding sleeve 2111 relative to the support rod 2120, and when the locking member 2410 moves to the unlocked position, it allows the sliding of the sliding sleeve 2111 relative to the support rod 2120. The sliding sleeve 2111 is provided with a mounting base 21112, which forms an inner cavity extending through both ends of the mounting base 21112, and the inner cavity of the mounting base 21112 communicates with the sliding channel 21111. The locking element 2410 is mounted on the mounting base 21112 and is movable relative to the mounting base 21112.

[0367] The locking member 2410 includes a locking part 2411 and an operating part 2412 fixedly connected to the locking part 2411. The locking part 2411 passes through the inner cavity of the mounting base 21112, and the operating part 2412 is sleeved on the mounting base 21112. The operating part 2412 has a receiving cavity 24121 for receiving at least a portion of the mounting base 21112. A flange is provided on the outer periphery of the end of the mounting base 21112 facing the operating part 2412. A plurality of protrusions 24122 are provided on the upper edge of the inner wall of the receiving cavity 24121 of the operating part 2412. When the locking member 2410 is installed on the mounting base 21112, at least a portion of the mounting base 21112 is located within the receiving cavity 24121, and the protrusions 24122 interfere with the flange 211121, thereby preventing the locking member 2410 from disengaging from the mounting base 21112.

[0368] The locking part 2411 has a snap-fit ​​connector 24111, which is adapted to pass through the inner cavity of the mounting base 21112 into the sliding channel 21111 and engage with the support rod 2120 within the sliding channel 21111, thereby restricting the sliding of the 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 or more than three movable positioning holes 2121. It is understood that the number of movable positioning holes 2121 can be set according to actual needs. When the locking member 2410 is in the locked position, a portion of the locking part 2410 (including a portion of the snap-fit ​​connector 24111) is selectively inserted into one of the movable positioning holes 2121, and when the locking member 2410 is in the unlocked position, that portion of the locking member 2410 is disengaged from the selected movable positioning hole 2121.

[0369] The locking member 2410 is configured to switch between an engaged state and a released state by rotating it. Specifically, the latch 24111 of the locking part 2411 is configured to pass through the movable positioning hole 2121, and is configured to engage with the movable positioning hole 2121 by rotating the latch 24111, and also to disengage the latch 24111 from the movable positioning hole 2121 by rotating the latch 24111. In this embodiment, the latch 24111 has a generally elliptical radial cross-section. The movable positioning hole 2121 has a shape that is generally the same as the radial cross-section of the latch 24111, and its size is slightly larger than that of the latch 24111. The orientation of the snap-fit ​​connector 24111 can be adjusted by rotating the locking member 2410, allowing the snap-fit ​​connector 24111 to enter and pass through the movable positioning hole 2121. After the snap-fit ​​connector 24111 passes through the movable positioning hole 2121, by rotating the snap-fit ​​connector 24111 by a certain angle, for example, 90 degrees, the snap-fit ​​connector 24111 will be engaged with the movable positioning hole 2121, thus preventing it from disengaging from the movable positioning hole 2121. It can be understood that the snap-fit ​​connector 24111 and the matching movable positioning hole 2121 can be of any other shape, as long as engagement and disengagement with the movable positioning hole 2121 can be achieved by rotating the snap-fit ​​connector 24111.

[0370] In this embodiment, the moving adjustment device 2400 further includes a second elastic member 2420, which is configured to bias the locking member 2410 toward the unlocking position. Specifically, the second elastic member 2420 is disposed in the receiving cavity 24121 of the operating part 2412. One end of the second elastic member 2420 abuts against the bottom wall of the inner cavity of the mounting base 21112 of the sliding sleeve 2111, and the other end of the second elastic member 2420 abuts against the bottom wall of the receiving cavity 24121. When the locking member 2410, which is in the locked position, is switched from the engaged state to the released state, that is, when the snap-fit ​​connector 24111 can disengage from the moving positioning hole 2121, the locking member 2410 will move from the locked position to the unlocking position under the action of the elastic restoring force of the second elastic member 2420. As mentioned above, due to the interference formed by the protrusion 24122 and the flange 211121, it is possible to prevent the locking member 2410 from disengaging from the mounting base 21112 under the elastic restoring force of the second elastic member 2420.

[0371] The following combination Figure 56 and Figure 57 Describe the process of unlocking the movable support 2110. For example... Figure 56 As shown, the locking member 2410 is in the locked position. The locking member 24111's snap-fit ​​connector 24111 passes through the movable positioning hole 2121 and snaps into it. At this time, the locking member 2410 is in the snap-fit ​​state. When the locking member 2410 is in the snap-fit ​​state, the locking member 2410 remains in the locked position, the sliding sleeve 2111 cannot slide relative to the support rod 2120, and correspondingly, the movement of the movable bracket 2110 relative to the support rod 2120 is restricted. When the user rotates the operating part 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 snap-fit ​​connector 24111 can disengage from the movable positioning hole 2121. Under the action of the elastic restoring force of the second elastic member 2420, the snap-fit ​​connector 24111 disengages from the movable positioning hole 2121, allowing the locking member 2410 to move from the locked position to the unlocked position, as shown. Figure 57 As shown. 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 simply by rotating the locking member 2410 by 90 degrees.

[0372] The movable support 2110 is unlocked by the movable adjustment device 2400, and the movable support 2110 is moved relative to the frame 210 to a suitable position so that the seat 2700 installed on the movable support 2110 has a suitable seating space. Then, the movable support 2110 can be locked by pressing the locking member 2410 towards the direction and rotating it 90 degrees.

[0373] Continue to refer to Figures 52 to 57 The movable adjustment device 2400 also includes a limiting pin 2430, one end of which is fixedly connected to the sliding sleeve 2111, and the other end of which is slidably disposed within the support rod 2120. The support rod 2120 has a limiting groove 2122 extending along the longitudinal direction of the child vehicle, through which the limiting pin 2430 passes. The limiting groove 2430 is configured to cooperate with the limiting pin 2430 to limit the range of movement of the movable support 2110 relative to the frame 210.

[0374] The movable adjustment device 2400 also includes a guide 2440 and a slider 2450. The guide 2440 is fixedly disposed within the support rod 2120 and has a groove 2441 corresponding to the limiting groove 2430. The guide 2440 is mounted to the inner wall of the support rod 2120 via a fastener 2442. When the guide 2440 is mounted to the inner wall of the support rod 2120, the limiting groove 2430 is approximately located at the center of the groove 2441. The slider 2450 is fixedly connected to the other end of the limiting pin 2430 and is slidably disposed in the groove 2441. The movement of the limiting pin 2430 along the limiting groove 2122 causes the slider 2450 to slide along the groove 2441. The adjustment device 2400 also includes two third elastic elements 2460, which are respectively disposed at both ends of the slider 2450 and adapted to bias the slider 2450 in two opposite directions along the longitudinal direction of the child carrier. Specifically, for each third elastic element 2460, one end abuts against the end face of the slider 2450, and the other end abuts against the end wall of the groove 2441. Due to the elastic force exerted on the slider 2450 by the two third elastic elements 2460, the impact of the limiting pin 2430 on the end wall of the limiting groove 2122 during sliding relative to the limiting groove 2122 can be reduced or even avoided.

[0375] It should be understood that the movable support provided in this embodiment can be applied to the seventh embodiment described above to enable the movable support 2110 to move relative to the 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. In addition, 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 vehicle with a movable seat, or to any child vehicle with a fixed seat.

[0376] Ninth Embodiment

[0377] Figures 58 to 61 This illustration shows a child carrier according to a ninth embodiment of the present invention. The main difference between the ninth embodiment and the above embodiments lies in the arrangement of the movable support; similarities or differences with the above embodiments will not be repeated here.

[0378] Similar to the seventh embodiment described above, the child vehicle includes a frame 210, a rider 220 pivotally mounted on the frame 210, and a movable support 2110 movably mounted on the frame 210. The movable support 2110 is adapted to mount a seat (in... Figures 58 to 62 (Not shown in the image). The rider 220 is rotatable relative to the frame 210 to switch the child vehicle between forward-facing and rearward-facing modes. Figure 58 and Figure 60 As shown, when driver 220 is in the first angle position, driver 220 is roughly located at the rear of the child vehicle, and the child vehicle is in forward-facing mode. At this time, the forward direction of travel of the child vehicle is... Figure 58 The direction indicated by F1 in the diagram corresponds to the front of the child vehicle. For example... Figure 59 and Figure 61 As shown, when driver 220 is in the second angle position, driver 220 is roughly located in front of the child vehicle, and the child vehicle is in rearward mode. At this time, the forward direction of travel of the child vehicle is... Figure 59 The direction indicated by F2 in the diagram corresponds to the rear of the child vehicle.

[0379] 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 moves from... Figure 58 and Figure 60 The first angular position shown is rotated to Figure 59 and Figure 61 At the second angular position shown, the drive bracket 2110 will move forward relative to the frame 210. When the rider 220... Figure 59 and Figure 61 The second angle position shown is rotated to Figure 58and Figure 60 At the second angular position shown, the drive movable bracket 2110 will move backward relative to the frame 210.

[0380] In this embodiment, the frame 210 includes side armrests 2140. Specifically, the frame 210 includes two side armrests 2140 located on the left and right sides respectively. The rider 220 is connected to the movable support 2110 at the side armrests 2140. The child vehicle 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 slidably disposed on the side armrests 2140. When the rider 220 rotates relative to the frame 210 to cause 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 vehicle. It can be understood that the child vehicle includes two sliders 2510, which are slidably disposed on the two side armrests 2140 respectively. The rotation of the rider 220 relative to the frame 210 can simultaneously cause the two sliding members 2510 to slide relative to the side handlebar 2140. The following description will take one of the sliding members 2510 as an example.

[0381] The slider 2510 can be, for example, in the form of a pin or a rod. A guide groove 2141 is provided on the side armrest 2140, through which the slider 2510 passes and is slidable. When the rider 220 rotates relative to the frame 210 to switch the child vehicle 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 groove 2141 to the other end. For example, when the rider 220 rotates from... Figure 58 and Figure 60 The first angular position shown is rotated to Figure 59 and Figure 61 The second angle position shown indicates that when the child vehicle is switched from forward-facing mode to rear-facing mode, the slider 2510 moves from the rear end of the guide groove 2141 (see reference). Figure 58 and Figure 60 Slide along guide groove 2141 to the front end of guide groove 2141 (refer to...) Figure 59 and Figure 61 ).

[0382] Combination Figure 62 and Figure 63In this embodiment, the rider 220 is provided with a drive member 2610. The drive member 2610 is configured such that when the rider 220 rotates relative to the frame 210, it is adapted to drive the slider 2510 to slide along the guide groove 2141 relative to the side armrest 2140, specifically, to slide along the guide groove 2141 of the side armrest 2140. The slider 2510 has a first end and a second end opposite to each other. The first end of the slider 2510 is connected to the drive member 2610, and the second end of the slider 2510 is connected to the movable bracket 2110 via the transmission member 2520. The drive member 2610 includes a connecting portion 2611 and a drive portion 2612. The connecting portion 2611 is mounted on the rider 220, and the drive portion 2612 is fixed to the connecting portion 2611.

[0383] The drive unit 2612 has a sliding channel 26121, and the first end of the slider 2510 can slide within the sliding channel 26121. 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 move the child vehicle from a forward-facing mode (e.g., Figure 58 (As shown) Switch to backward mode (as shown) Figure 59 When the first pushing part 26122 is adapted to push the first end of the sliding member 2510, so as to drive the sliding member 2510 to slide relative to the side armrest 2140, so that the sliding member 2510 drives the movable support 2110 forward relative to the frame 2110 along the longitudinal direction of the child vehicle (corresponding to...). Figure 58 Move in the direction F1). When the rider 220 rotates relative to the frame 210 to move the child vehicle from rear-facing mode (such as...). Figure 59 (As shown) Switch to forward mode (as shown) Figure 58 When the second pushing part 26123 is adapted to push the first end of the sliding member 2510 (as shown), it causes the sliding member 2510 to slide relative to the side armrest 2140, so that the sliding member 2510 drives the movable support 2110 to move rearward relative to the frame 2110 along the longitudinal direction of the child vehicle (corresponding to...). Figure 59 Move in the direction F2).

[0384] The sliding channel 26121 is constructed such that, during the process of the rider 220 rotating relative to the frame 210 to switch the child vehicle from a forward-facing mode to a rearward-facing mode, the first pushing part 26122 abuts against the first end of the slider 2510 only after the rider 220 has rotated a predetermined angle relative to the frame 210, and the second pushing part 26123 abuts against the first end of the slider 2510 only after the rider 220 has rotated a predetermined angle relative to the frame 210 to switch the child vehicle from a rearward-facing mode to a forward-facing mode. Specifically, the sliding channel 26121 is arc-shaped, and the center of this arc is located on the pivot axis of the rider 220 rotating around the frame 210. The guide groove 2141 formed on the side armrest 2140 is also arc-shaped, and the guide groove 2141 and the sliding channel 26121 are on the same circumferential path.

[0385] The following is for reference Figure 62 and Figure 63 The process of the drive component 2610 driving the slider 2510 to move is described by an example. When the child vehicle is in Figure 62 In the forward-facing mode shown, the slider 2510 is located near the proximal end of the guide groove 2141 of the side armrest 2140, and the second pushing portion 26123 of the sliding channel 26121 abuts against the first end of the slider 2510. Along... Figure 62 During the process of rotating the rider 220 in the first rotation direction D3 to switch the child vehicle from forward-facing mode to backward-facing mode, the position of the slider 2510 initially remains unchanged. The drive unit 2612 slides over the slider 2510, causing the position of the slider 2510 in the sliding channel 26121 to change from abutting against the second push part 26123 to abutting against the first push part 26122. After the slider 2510 abuts against the first push part 26122, further rotation of the rider 220 in the first rotation direction D3 will cause the slider 2510 to slide along the guide groove 2141 of the side armrest 2140 from the proximal end to the distal end of the guide groove 2141. After the slider 2510 reaches the distal end of the guide groove 2141, the rider 220 can no longer rotate further in the first rotation direction D3. At this point, the reversal of the rider 220 is completed.

[0386] The sliding of the slider 2510 along the guide groove 2141 will drive the movable support 2110 to move relative to the frame 210 in the longitudinal direction of the child vehicle. Therefore, by means of the slider 2510, the seat mounted on the movable support 2110 is moved relative to the frame 210 when the rider 220 changes direction.

[0387] refer to Figures 64 to 68 For ease of explanation, in Figure 67 and Figure 68The side armrest has been removed. In this embodiment, the second end of the slider 2510 is connected to the movable bracket 2110 via the transmission member 2520. One end of the transmission member 2520 is pivotally connected to the second end of the slider 2510, and the other end of the transmission member 2520 is hinged to the movable bracket 2110. The movable bracket 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 by a permanent connection such as welding or bonding, or it can be fixed to the frame 210 by fasteners such as threaded fasteners, pin fasteners, or rivet fasteners, or it can be integrally formed with the base 2113. The top of the side frame 2114 is connected to the slider 2510 via the transmission member 2520. Specifically, the top of the side frame 2114 is hinged 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 disposed in the guide groove.

[0388] It should be understood that the front armrest and its adjustment mechanism provided in the seventh and eighth embodiments above can be applied to the child vehicle provided in this embodiment, so that after the child vehicle is reversed, the appropriate riding space can be set by adjusting the front armrest.

[0389] Tenth Embodiment

[0390] Figure 69 and Figure 70 The tenth embodiment of the present invention is shown, depicting a child vehicle in forward and rearward modes, with the seat removed for clarity. Figure 69 As shown, the child vehicle 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, with a front wheel assembly 3111 connected to the end of the front leg 3110 and a rear wheel assembly 3121 connected to the end of the rear leg 3120. The frame 3100 also includes a support rod 3130, with the rider 3200 pivotally connected to the support rod 3130 and the movable support 3300 slidably connected to the support rod 3130. The child vehicle 310 also includes an armrest 3400, a leg support 3500, a backrest support 3600, and a seat (in...) fixed to the movable support 3300. Figure 69 and Figure 70(Not shown in the image). The armrest 3400 is primarily for children placed inside the child carrier 310 to grasp for balance or support. The armrest 3400 can be detachably connected to the movable support 3300 so that it can be removed when placing a child inside the child carrier 310. In this embodiment, the armrest 3400 is in the form of a crossbar, with both ends connected to the movable support 3300. In other embodiments, the armrest 3400 may be in the form of a tray or other type of storage plate.

[0391] In this embodiment, a leg support 3500 is pivotally connected to a movable support 3300 for supporting the legs of a child placed within the child carrier. The angle of the leg support 3500 relative to the movable support 3300 is adjustable to provide comfortable support for the child's legs. In some other embodiments, a leg support may not be provided, or it may be integrated into the seat, for example, pivotally connected to the seat plate. In this embodiment, a backrest support 3600 is pivotally connected to the movable support 3300 and may be used to support the backrest of the seat 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 provide comfortable support for the child's back. In some other embodiments, the backrest support 3600 may be integrated into the seat. In this embodiment, a canopy support 3700 is also provided on the backrest support 3600 for supporting the canopy of the seat. The canopy support 3700 includes a first canopy support rod 3710 and a second canopy support rod 3720, the second canopy support rod 3720 being 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 allows the canopy to be extended 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 fasteners. In other embodiments, the seat can be mounted to the movable bracket 3300 using a permanent connection method such as welding or bonding. In still other embodiments, the seat can be detachably mounted to the movable bracket 3300.

[0392] The rider 3200 is rotatable relative to the frame 3100. For example, the rider 3200 can rotate from... Figure 69 The first angular position shown is rotated to Figure 70 The second angular position is shown. (As shown) Figure 69 As shown, when rider 3200 is in the first angle position, the grip of rider 3200 (at...) Figure 69 and Figure 70 (Not shown in the image) is located at the rear of the child vehicle 310, which is in forward-facing mode. At this time, the forward direction of travel of the child vehicle 310 is... Figure 69 The direction indicated by direction F1 corresponds to the front of the child vehicle 310. For example... Figure 70 As shown, when the rider 3200 is in the second angle position, the handlebars of the rider 3200 are located at the front of the child vehicle 310, and the child vehicle is in rearward mode. At this time, the forward direction of travel of the child vehicle 310 is... Figure 70 The direction indicated by direction F2 corresponds to the rear of the child vehicle 310. In this document, the driver 3200 turning from the first angular position to the second angular position, or from the second angular position to the first angular position, is referred to as a change of direction of the driver 3200. The change of direction of the driver 3200 causes the child vehicle 310 to switch between forward and backward modes.

[0393] The rotation of the rider 3200 relative to the frame 3100 drives the movable support 3300 to slide along the support rod 3130. For example, when the rider 3200... Figure 69 The first angular position shown is rotated to Figure 70 In the second angle position shown, the drive bracket 3300 is moved from the first position relative to the frame 3100 to the second position. Compared to the first position, in the second position, the drive bracket 3300 is further away from the rear wheel 3121 in the longitudinal direction (i.e., the fore-and-aft direction) of the child vehicle 310. That is, when the rider 3200 rotates from the first angle position to the second angle position to switch the child vehicle 310 from a forward-facing mode to a rearward-facing mode, the drive bracket 3300 will move forward relative to the frame 3100 along the longitudinal direction of the child vehicle 310. Since the armrest 3400, leg support 3500, backrest support 3600, and seat are fixed to the drive bracket 3300, the armrest 3400, leg support 3500, backrest support 3600, canopy support 3700, and seat move forward relative to the frame 3100 together with the drive bracket 3300. Accordingly, the center of gravity of the child vehicle 310 will move forward relative to the frame 3100 along the longitudinal direction of the child vehicle 310. Furthermore, since the child placed in the child vehicle 310 also moves forward relative to the frame 3100 along with the movable support 3300, the child's center of gravity will also move forward relative to the frame 3100 along the longitudinal direction of the child vehicle 310. Compared to the forward-facing mode, in the rearward-facing mode, the overall center of gravity of the child vehicle 310 with the child is closer to the front wheel 3111. Since the front wheel 3111 of the child vehicle 310 actually acts as the rear wheel in the rearward-facing mode, the changed overall center of gravity of the child vehicle 310 will be closer to the actual rear wheel in the rearward-facing mode; therefore, pushing the child vehicle 310 in this situation will require less effort.

[0394] When the driver 3200 from Figure 70 The second angle position shown is rotated to Figure 69When the child vehicle 310 is in the first angular position, the movable support 3300 is moved from the second position relative to the frame 3100 to the first position. That is, when the rider 3200 rotates from the second angular position to the first angular position to switch the child vehicle 310 from rear-facing mode to forward-facing mode, the movable support 3300 moves rearward relative to the frame 3100 along the longitudinal direction of the child vehicle 310. The armrests 3400, leg supports 3500, backrest supports 3600, and seat also move rearward relative to the frame 3100 along with the movable support 3300. The change in the center of gravity of the child vehicle 310 when switching from rear-facing mode to forward-facing mode is the opposite of the change when switching from forward-facing mode to rear-facing mode, and will not be described further here.

[0395] See Figures 71 to 74 The rider 3200 includes two push rods 3210 and a handlebar 3220. Each end of the handlebar 3220 is connected to a push rod 3210. The two push rods 3210 are pivotally connected to the frame 3100 on the left and right sides respectively. The frame 3100 includes two support rods 3130 located on the left and right sides. The two push rods 3210 of the rider 3200 are pivotally connected to a corresponding support rod 3130, and two movable supports 3300 are slidably connected to a corresponding support rod 3130. Each movable support 3300 includes a movable support body 3310, a sliding sleeve 3320, and an armrest mounting base 3330. Each end of the armrest 3400 is detachably mounted to the armrest mounting base 3330 of a corresponding movable support 3300. The sliding sleeve 3320 is adapted to mount the seat plate. In this embodiment, the seat plate can be installed on the sliding sleeve 3320 using fasteners such as threaded fasteners, pin fasteners, or rivet fasteners. In other embodiments, the seat plate can be installed on the sliding sleeve 3320 using a permanent connection method such as welding or bonding. An elastic support member 3800 is also provided between the sliding sleeves 3320 of the two movable supports 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 sliding sleeves 3320. When the seat plate of the seat is installed on the sliding sleeve 3320, the elastic support member 3800 is located at the bottom of the seat plate, which provides support for the seat and also provides shock absorption, thereby improving the comfort of sitting.

[0396] The sliding sleeve 3320 is slidably fitted onto the support rod 3130. In this embodiment, each support rod 3130 includes a substantially straight horizontal portion 3131 extending along 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 a central rod 3122 connected to the rear leg 3120 on the same side as the support rod 3130. The sliding sleeve 3320 is slidably fitted onto the horizontal portion 3131, and by sliding the sliding sleeve 3320 relative to the horizontal portion 3131, the sliding sleeve 3320 can move along the longitudinal direction of the child carrier 310.

[0397] The movable support body 3310, the sliding sleeve 3320, and the handrail mounting base 3330 are fixedly disposed relative to each other. When the sliding sleeve 3320 slides relative to the horizontal portion 3131, the movable support body 3310 and the handrail mounting base 3330 move together with the sliding sleeve 3320. In this embodiment, the movable support body 3310, the sliding sleeve 3320, and the handrail mounting base 3330 are integrally formed. In other embodiments, the movable support body 3310, the sliding sleeve 3320, and the handrail mounting base 3330 may also be manufactured separately and then fixed together by a permanent connection method such as welding or bonding.

[0398] 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, and the second end of the drive pin 3140 passes through a support rod 3130 and is fixedly connected to a 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, causing 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, and 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 rider 3200 rotates, the gear 3150 will also rotate synchronously with the rider 3200 due to the drive pin 3140, which is fixedly connected between the rider 3200 and the gear 3150.

[0399] A rack 3311 is provided on the movable support 3300. In this embodiment, the rack 3311 is fixedly mounted on the movable support body 3310 of the movable support 3300, extending along the longitudinal direction of the child carrier 310, and correspondingly extending in a direction parallel to the extension direction of the horizontal portion 3131 of the support rod 3130. The rack 3311 meshes 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 to move in a straight line. The gear 3150 and the rack 3311 constitute a gear and rack mechanism, which converts the rotational motion of the gear into the reciprocating linear motion of the rack.

[0400] In this embodiment, when the gear 3150 rotates due to the rider 3200 changing direction, the rack 3311 will move forward or backward along the longitudinal direction of the child vehicle 310. Correspondingly, the movable support body 3310 where the rack 3311 is located, as well as the sliding sleeve 3320 and the armrest mounting seat 3330 fixed to the movable support body 3310, will also move forward or backward along the longitudinal direction of the child vehicle 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, see... Figure 75 When the rider 3200 rotates from the first angle position to the second angle position to switch the child vehicle 310 from forward mode to rearward mode, the gear 3150 rotates synchronously. The teeth of the gear 3150 push the rack 3311 to move linearly in the first direction of movement F3 (which corresponds to the direction in front of the child vehicle 310 in the longitudinal direction of the child vehicle 310). At this time, the entire movable support 3300, including the movable support body 3310, the sliding sleeve 3320 and the armrest mounting seat 3330, moves in the first direction of movement F3 from the first position relative to the frame 3100 to the second position further away from the rear wheel 3121 in the longitudinal direction of the child vehicle 310.

[0401] See Figure 76 In this embodiment, the first end of the drive pin 3140 is fixed to the push rod 3210 of the rider 3200 by the positioning pin 3213. Figure 76As shown, the push rod 3210 includes a push rod housing 3211, a fixing member 3212, a positioning pin 3213, and a push rod plug 3214. The fixing member 3212 is installed on the push rod housing 3211, and its end is closed by the push rod plug 3214. The fixing member 3212 has a drive pin hole 32121 on its side for the first end of the drive pin 3140 to pass through, and a first positioning pin hole 32122 at its end for the positioning pin 3213 to be inserted. The drive pin hole 32121 communicates with the positioning pin hole 32122. The end of the fixing member 3212 has two clamping portions 32123 located on opposite sides of the first positioning pin hole 32122. The clamping portions 32123 are used to clamp the head 32131 of the positioning pin 3213 to fix the positioning pin 3213. The first end of the drive pin 3140 has a second positioning pin hole 3141 through which the positioning pin 3213 passes. The first end of the drive pin 3140 can be fixedly connected to the rider 3200 in the following manner: insert the first end of the drive pin 3140 into the drive pin hole 32121 of the fixing member 3212; align the second positioning pin hole 3141 of the drive pin 3140 with the first positioning pin hole 32122 of the fixing member 3212; insert the positioning pin 3213 into the first positioning pin hole 32122 and the second positioning pin hole 3141; and clamp the head 32131 of the positioning pin 3213 using the clamping part 32123.

[0402] See Figure 77 A locating pin 3213 passing through the first end of the drive pin 3140 fixes the first end of the drive pin 3140 to the fixing member 3212 of the push rod 3210, thereby keeping the drive pin 3140 and the rider 3200 relatively fixed. The rotation of the rider 3200 will cause the drive pin 3140 to rotate synchronously. The second end of the drive pin 3140 passes through the support rod 3130 and is fixedly connected to the gear 3150, and is rotatable on the support rod 3130. When the drive pin 3140 rotates with the rider 3200, it will drive the gear 3150 to rotate synchronously. The second end of the drive pin 3140 can be fixedly connected to the gear 3150 by welding, bonding, keying, pinning, riveting, etc.

[0403] In this embodiment, the rotation of the rider 3200 will drive the gear 3150 to rotate synchronously. The rotation of the gear 3150 causes the rack 3311 to move in a straight line, thereby driving the entire movable support 3300 to slide forward or backward relative to the support rod 3130. Thus, the armrest 3400, leg support 3500, backrest support 3600, and seat, which are fixedly connected to the movable support 3300, move forward or backward along with the movable support 3300 in the longitudinal direction of the child vehicle 310. Specifically, when the rider 3200 rotates to switch the child vehicle 310 from a forward-facing mode to a rearward-facing mode, the armrest 3400, leg support 3500, backrest support 3600, and seat will move forward relative to the frame 3100 along with the movable support 3300. This causes the overall center of gravity of the child vehicle 310 to be closer to the actual rear wheel in the rearward-facing mode, thus requiring less effort to push the child vehicle in the rearward-facing mode.

[0404] Eleventh Embodiment

[0405] Figure 78 and Figure 79 This illustration shows a child vehicle according to the eleventh embodiment of the present invention. The main differences between the eleventh embodiment and the tenth embodiment described above are the arrangement of the armrests and the canopy support, as well as the method by which the driver drives the movable support to move when changing direction. The similarities or differences with the tenth embodiment described above will not be repeated here.

[0406] In this embodiment, the armrest 3400 is detachably connected to the frame 3100, and correspondingly, the movable support 3300 does not have an armrest mounting base 3330. In some other embodiments, the movable support 3300 may have 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.

[0407] In this embodiment, a canopy support member 3700, including 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 realize the unfolding and folding of the canopy. In some other embodiments, the canopy support member 3700 may be disposed on the backrest support member 3600.

[0408] In this embodiment, the rider 3200 is pivotally connected to the frame 3100 via a pivot 3160. The pivot 3160 has a first end and a second end opposite to each other. The lower end of the push rod 3210 of the rider 3200 is rotatably connected to the first end of the pivot 3160, and the push rod 3210 is rotatable about the pivot 3160. The lower end of the push rod 3210 is covered by a push rod sleeve 3215. The push rod sleeve 3215 is fixed to the lower end of the push rod 3210 and has, for example, an extension 32151 that extends generally obliquely downward. The second end of the pivot 3160 passes through the end of the horizontal portion 3131 of the support rod 3130 near 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 drive member 3180 is driven to the movable support 3300 via, for example, the transmission member 3170 described below. The transmission member 3170 is configured to move in response to rotation of the drive member 3180 to cause the movable support 3300 to slide relative to the frame (3100) along the longitudinal direction of the child vehicle (10).

[0409] Combination Figure 82 The drive body 3181 of the drive member 3180 is generally L-shaped, comprising a first part 31811 and a second part 31812. The first part 31811 is at a predetermined angle relative to the second part 31812. The second end of the pivot shaft 3160 passes through the connection between the first part 31811 and the second part 31812, allowing the drive member 3180 to rotate about the pivot shaft 3160. The end of the first part 31811 away from the connection is hinged 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 fasteners 3190 such as screws, bolts, rivets, or pins. The end of the second part 31812 away from the connection, facing the rider 3200, has a first lateral connecting portion 3182. The first lateral connecting portion 3182 extends from the second part 31812 towards the rider 3200, and its end is fixedly connected to the end of the extension 32151 of the push rod sleeve 3215. When the rider 3200 rotates relative to the frame 3100, since the push rod sleeve 3215 and the drive member 3180 are relatively fixed, the drive member 3180 will rotate synchronously with the rider 3200 to drive the movable support 3300 to slide relative to the frame 3100 along the longitudinal direction of the child vehicle 310.

[0410] In this embodiment, the first part 31811, the second part 31812, and the first transverse connecting part 3182 are integrally formed, meaning that the driving member 3180 is integrally formed. Since the first transverse connecting part 3182 of the driving member 3180 is fixedly connected to the push rod sleeve 3215 fixed to the push rod 3210, the driving member 3180 and the push rod 3210 can remain relatively fixed. When the rider 3200 rotates around the pivot axis 3160, the driving member 3180 rotates synchronously around the pivot axis 3160. Since the first part 31811 of the driving member 3180 is hinged to the transmission member 3170, during the rotation of the driving member 3180, the first part 31811 of the driving member 3180 will push the transmission member 3170, causing the transmission member 3170 to move. The transmission member 3170, in turn, drives the movable bracket 3300 to move along the horizontal part 3131 of the support rod 3130. In some other embodiments, the drive member 3180 may not include the first lateral connecting portion, but instead the lateral connecting portion is disposed in the extension 32151 of the push rod sleeve 3215, for example, the lateral connecting portion is integrally formed with the push rod sleeve 3215. One end of the lateral connecting portion extending from the push rod sleeve 3215 is fixedly connected to the drive member 3180. In other still embodiments, the push rod sleeve 3215 and the drive member 3180 may be integrally formed.

[0411] exist Figure 78 and Figure 79 In the middle, the child vehicle 310 is in forward-facing mode, and the movable support 3300 is in the first position relative to the frame 3100. See also Figure 80 and Figure 81 When the driver 3200 from Figure 78 and Figure 79 The first angular position shown is rotated to Figure 80 and Figure 81In the second angular position shown, the child vehicle 310 is in a rearward mode, and the movable support 3300 is in a second position relative to the frame 3100. Specifically, when the rider 3200 rotates from the first angular position to the second angular position to switch the child vehicle 310 from a forward mode to a rearward mode, the drive member 3180 rotates synchronously, and drives the transmission member 3160 to move in the second movement direction F4 (which corresponds to the direction in the longitudinal direction of the child vehicle 310 toward the front of the child vehicle 310). The transmission member 3160 drives the movable support 3300 to move in the second movement direction F4 from the first position relative to the frame 3100 to the second position. Compared to the first position, in the second position, the movable support 3300 is further away from the rear wheel 3121 in the longitudinal direction (i.e., the front-to-back direction) of the child vehicle 310. In other words, when the rider 3200 rotates from the first angle position to the second angle position to switch the child vehicle 310 from forward-facing mode to rear-facing mode, the movable support 3300 will move forward relative to the frame 3100 along the longitudinal direction of the child vehicle 310. Thus, the leg support 3500, backrest support 3600, and seat, which are fixedly connected to the movable support 3300, move forward or backward along with the movable support 3300 in the longitudinal direction of the child vehicle 310. Specifically, when the rider 3200 rotates to switch the child vehicle 310 from forward-facing mode to rear-facing mode, the leg support 3500, backrest support 3600, and seat will move forward relative to the frame 3100 along with the movable support 3300, causing the overall center of gravity of the child vehicle 310 to be closer to the actual rear wheel in rear-facing mode. Therefore, pushing the child vehicle in rear-facing mode will require less effort.

[0412] Twelfth Embodiment

[0413] Figure 83 and Figure 84 A partial structure of a child vehicle according to the twelfth embodiment of the present invention is shown. The main difference between the twelfth embodiment and the eleventh embodiment described above is the method by which the movable support is moved when the rider changes direction; the similarities or differences with the eleventh embodiment described above will not be repeated here.

[0414] In this embodiment, a second lateral connecting portion 32152 is provided at the end of the extension 32151 of the push rod sleeve 3215 facing the drive member 3180. The second lateral connecting portion 32152 extends from the extension 32151 toward the drive member 3180, and its end is fixedly connected to the end of the second portion 31812 of the drive member 3180 away from the connection point. The second lateral connecting portion 32152 corresponds to the connecting portion 3182 of the drive member 3180 in the eleventh embodiment described above. Both the second lateral connecting portion 32152 and the connecting portion 3182 are used to connect the extension 32151 of the push rod sleeve 3215 and the second portion 31812 of the drive member 3180, so that the push rod sleeve 3215 and the drive member 3180 are relatively fixed. The extension 32151 and the second lateral 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 lateral connecting portion, but the lateral connecting portion may be disposed on the second portion 31812 of the drive member 3180, for example, the lateral connecting portion and the second portion 31812 may be integrally formed.

[0415] Two push rod sleeves 3215, covering the left and right sides of the frame 3100 respectively, are connected by a connecting rod 3216. Specifically, the connecting rod 3216 has a first end and a second end. The first end of the connecting rod 3216 is fixedly connected to the end where the second lateral connecting portion 32152 of one of the push rod sleeves 3215 is connected to the second part 31812 of the corresponding drive member 3180. The second end of the connecting rod 3216 is fixedly connected to the end where the second lateral connecting portion 32152 of the other push rod sleeve 3215 is connected to the second part 31812 of the corresponding drive member 3180. Under the action of the connecting rod 3216, the movement of the two push rod sleeves 3215 will be synchronized. Therefore, when the two riders 3200 located on the left and right sides of the frame 3100 rotate, it can be ensured that the two movable supports 3300, which are slidably connected to the two support rods 3130 respectively, move synchronously.

[0416] Thirteenth Embodiment

[0417] Figure 85 This diagram illustrates 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 described above lies in the structure of the push rod sleeve and the drive member; similarities or differences to those in the eleventh embodiment will not be repeated here.

[0418] In this embodiment, the push rod sleeve 3215 and the drive member 3180 are integrally formed. Specifically, a transverse connecting portion 3230 connects the extension 32151 of the push rod sleeve 3215 and the second part 31812 of the drive member body 3181 of the drive member 3180. The push rod sleeve 3215, the transverse connecting portion 3230, and the drive member 3180 are integrally formed.

[0419] Fourteenth Embodiment

[0420] Figure 86 This illustration shows a child carrier according to the fourteenth embodiment of the present invention. The main difference between the fourteenth embodiment and the first to thirteenth embodiments described above is that the seat is detachably mounted on a movable support. The similarities or differences between the fourteenth and the first to thirteenth embodiments described above will not be repeated here.

[0421] In this embodiment, the seat plate 3900 is detachably mounted to the sliding sleeve 3320 of the movable bracket 3300. For example, the seat plate 3900 can be detachably mounted to the sliding sleeve 3320 by a snap-fit ​​mechanism. See also Figure 86 and Figure 87 The sliding sleeve 3320 is provided with a locking groove 3321, and the seat plate 3900 is provided with a locking protrusion 3910 that matches the locking groove 3321. The locking protrusion 3910 is adapted to be inserted into the locking groove 3321 to engage tightly with the locking groove 3321, thereby fixing the seat plate 3900 to the sliding sleeve 3320. By moving the locking protrusion 3910 to disengage it from the locking groove 3321, the seat plate 3900 can be removed from the sliding sleeve 3320.

[0422] In some other embodiments, the engaging groove can be provided on the seat plate, and correspondingly, the engaging protrusion can be provided on the slide sleeve. In other still embodiments, the seat plate 3900 can be fixed to the slide sleeve 3320 in other ways, as long as a detachable engagement between the seat plate 3900 and the slide sleeve 3320 can be achieved. For example, a detachable engagement between the seat plate 3900 and the slide sleeve 3320 can be achieved by tenon joint, snap-fit ​​joint, bolt joint, etc.

[0423] Fifteenth Embodiment

[0424] Figure 88 A child carrier according to the fifteenth embodiment of the present invention is shown. The main difference between the fifteenth embodiment and the fourteenth embodiment described above is that the backrest support is disposed in the seat; the similarities or samenesses with the fourteenth embodiment described above will not be repeated here.

[0425] In this embodiment, the backrest support 3600 is pivotally connected to the seat plate 3900 of the seat, forming the backrest support portion of the seat. The seat plate 3900 is detachably 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 plate 3900, is detachable overall relative to the child carrier 310.

[0426] In this embodiment, the canopy support 3700 is disposed on the frame 3200. In other embodiments, the canopy support 3700 may be pivotally connected to the side panel of the backrest support 3600, such that the canopy support 3700 can be installed with the seat to or removed from the child carrier 310. Furthermore, in other embodiments, the armrest 3400 may also be disposed on the seat, such that the armrest 3400 can be installed with the seat to or removed from the child carrier 310.

[0427] Sixteenth Embodiment

[0428] Figures 89 to 98 This illustration shows a child vehicle according to the sixteenth embodiment of the present invention. The main difference between the sixteenth embodiment and the tenth embodiment described above is the manner in which the movable support is moved when the rider changes direction; similarities or differences with the tenth embodiment described above will not be repeated here.

[0429] Reference Figures 89 to 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 fitted onto the support rod 3130. In this embodiment, a pusher 3340 is connected between the drive pin 3140 and the movable support body 3310. One end of the pusher 3340 is connected to the rider 3200, and the other end is rotatably connected to the movable support 3300. Specifically, one end of the pusher 3340 is fixed to the drive pin 3140, and the other end is rotatably connected to the movable support body 3310. The pusher 3340 can rotate synchronously with the rider 3200, and the rotation of the pusher 3340 can drive the movable support 3300 to slide relative to the support rod 3130. Thus, through the setting of the pusher 3340, the movable support 3300 can slide relative to the support rod 3130 as the rider 3200 rotates.

[0430] Combined with reference Figures 91 to 94The drive pin 3140 has a first end 3142 and a second end 3143. 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, so that the drive pin 3140 rotates 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 is adapted to push against the flat portion 31421, thereby 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, and 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. Through the sliding fit between the pivot portion 3144 and the support rod 3130, the drive pin 3140 is rotatable relative to the support rod 3130. The first end of the push member 3340, which is fixedly connected to the drive pin 3140, has a fixing hole 3341. The second end of the push member 3340, which is rotatably connected to the movable support body 3310, has a connecting hole 3342. 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, for example, through an interference fit with the fixing hole 3341, the push member 3340 is fixed to the second end 3143. When the rider 3200 rotates, the pusher 3340 will also rotate synchronously with the rider 3200 due to the drive pin 3140, which is fixedly connected between the rider 3200 and the pusher 3340. It is understood that in some other embodiments, the second end 3143 of the drive pin 3140 can be fixedly connected to the pusher 3340 by welding, bonding, keying, pinning, riveting, or other methods.

[0431] The movable support 3300 is provided with a mating hole 3312. Specifically, the mating hole 3312 can be provided in the movable support 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 connecting hole 3342 provided in the push member 3340 and is slidably fitted in the mating hole 3312. Through the sliding engagement of the fixing pin 3313 with the mating hole 3312, during the rotation of the push member 3340, the other end of the push member 3340 is rotatable relative to the mating hole 3312 and slidable along the mating hole 3312. When the push member 3340 rotates with the driver 3200, the movable support 3300 can be driven to slide relative to the support rod 3130 by the fixing pin 3313. Specifically, the backrest support 3600 is pivotally connected to the movable support body 3310 via the same retaining pin 3313. When the rider 3200 rotates to change direction, the retaining pin 3313 is adapted to slide along the mating hole 3312. For example, when the rider 3200 rotates from the rear of the child vehicle 310 to the front of the child vehicle 310, the retaining pin 3313 first slides from the lower part of the mating hole 3312 to the upper part of the mating hole 3312, and then slides from the upper part of the mating hole 3312 to the lower part of the mating hole 3312. When the rider 3200 rotates from the front of the child vehicle 310 to the rear of the child vehicle 310, the retaining pin 3313 also first slides from the lower part of the mating hole 3312 to the upper part of the mating hole 3312, and then slides from the upper part of the mating hole 3312 to the lower part of the mating hole 3312. Specifically, when the movable bracket 3300 slides to the position where the mating hole 3312 is directly above the drive pin 3140, the retaining pin 3313 slides to the top of the mating hole 3312. The mating hole 3312 provides room for movement at the other end of the pusher 3340 connected to the movable bracket body 3310, allowing the pusher 3340 to rotate with the rider 3200.

[0432] Reference Figures 95 to 98 When the driver 3200 turns from the rear of the child vehicle 310 towards the front of the child vehicle 310 to move the child vehicle 310 from... Figure 95 The forward mode shown is converted to Figure 96 In the rearward configuration shown, the jacking member 3340 rotates synchronously with the rider 3200. The rotation of the jacking member 3340 drives the movable support 3300 along... Figure 97 The third moving direction F5 (which corresponds to the direction towards the front of the child carrier 310 in the longitudinal direction of the child carrier 310) slides relative to the support rod 3130. Thus, the movable support 3300 slides relative to the support rod 3130 along the third moving direction F5. Figure 97 Slide to the position shown Figure 98The position shown allows the movable support 3300 to move further away from the rear wheel 3121 in the longitudinal direction of the child vehicle 310. That is, when the rider 3200 rotates from the rear of the child vehicle 310 towards the front to switch the child vehicle 310 from a forward-facing mode to a rearward-facing mode, the movable support 3300 slides forward relative to the frame 3100 on the support rod 3130. When the rider 3200 rotates from the front of the child vehicle 310 towards the rear to switch the child vehicle 310 from a rearward-facing mode to a forward-facing mode, the pusher 3340, along with the rotation of the rider 3200, drives the movable support 3300 to slide relative to the support rod 3130 in a direction opposite to the third direction of movement F5, causing the movable support 3300 to move closer to the rear wheel 3121 in the longitudinal direction of the child vehicle 310. In other words, when the rider 3200 rotates from the front of the child vehicle 310 to the rear of the child vehicle 310 to switch the child vehicle 310 from rearward mode to forward mode, the movable support 3300 slides rearward on the support rod 3130 relative to the frame 3100.

[0433] Although various illustrative embodiments have been described above, numerous modifications can be made to these embodiments without departing from the scope of the invention as described in the claims. For example, optional features of various devices may be included in some embodiments or excluded in others. Therefore, the foregoing description is provided primarily for illustrative purposes and should not be construed as limiting the scope of the invention as set forth in the claims.

[0434] The examples and illustrations contained herein are shown by way of example and not limitation, to illustrate specific embodiments of the present invention. As previously stated, other embodiments can be derived from them, allowing for structural substitutions and changes without departing from the scope of the present invention. Therefore, although specific embodiments have been described herein, any construction capable of achieving the same purpose may replace the specific embodiments shown. The present invention is intended to cover all variations of the various embodiments. Those skilled in the art will, upon reading the above description, arrive at various combinations of the above embodiments and other embodiments not described in detail herein.

Claims

1. A child vehicle, characterized in that, include: Frame; Seat assembly, which is mounted on the vehicle frame; A backrest assembly, which is pivotally connected to the seat assembly; A headrest panel, which is pivotally connected to the backrest assembly; as well as A drive element, connected to the vehicle frame, is configured to actuate the headrest so that the angle of the headrest relative to the backrest changes when the angle of the backrest assembly relative to the seat assembly changes.

2. The child vehicle according to claim 1, characterized in that, The child vehicle also includes: A linkage mechanism is disposed on one side of the seat assembly and is connected to both the backrest assembly and the seat assembly. The seat assembly is configured to be movable relative to the vehicle frame in the longitudinal direction of the vehicle 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. 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 drive component that is connected to the frame moves synchronously with the seat assembly along the longitudinal direction of the frame.

3. A child vehicle, characterized in that, include: Frame; A seat that is movable relative to the vehicle frame between a first position and a second position; as well as The front armrest is movably connected to the vehicle frame; The front armrest is adjustable, allowing the distance between the front armrest and the seat to be selectively increased or decreased when the seat is moved to the first or second position.

4. The child vehicle according to claim 3, 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 back 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.

5. The child vehicle according to claim 4, characterized in that, When the front armrest is pivotally connected to the frame, the child vehicle also includes an angle adjustment device, the angle adjustment device comprising: A mounting base, which is fixed to the vehicle frame; A rotating seat, one end of which is rotatably connected to the fixed seat relative to the fixed seat, and the other end of which is connected to the front armrest; and An angular positioning member is slidably disposed between the fixed seat and the rotating seat relative to the rotating seat, and is configured to be movable between a locked position and a released position. When the angular positioning member is in the locked position, it restricts the rotation of the rotating seat relative to the fixed seat, while when the angular positioning member is in the released position, it allows the rotation of the rotating seat relative to the fixed seat. When the front armrest is retractably connected to the frame, the child vehicle also includes: A connecting sleeve having a first end and a second end opposite each other in the axial direction, the first end of the connecting sleeve being fixedly connected to the vehicle frame. The front armrest has an extension at its end, which is slidably inserted into the second end of the connecting sleeve, so that the end of the front armrest is retractable relative to the connecting sleeve.

6. The child vehicle according to claim 3, characterized in that, The child vehicle also includes: A movable support frame is movably mounted on the vehicle frame and on which the seat is installed; The movable support is adapted to selectively move forward or backward relative to the frame along the longitudinal direction of the child vehicle, so that the seat can move between the first position and the second position.

7. The child vehicle according to claim 3, characterized in that: The frame includes side armrests; The child vehicle also includes: The rider, pivotally mounted on the frame; and A movable support frame is movably mounted on the vehicle frame and on which the seat is installed; The rider and the movable support are connected at the side armrest. When the rider rotates relative to the frame, the rider is adapted to drive the movable support to move relative to the frame along the longitudinal direction of the child vehicle.

8. A child vehicle, characterized in that, include: Frame; The rider, who is mounted on the frame; A movable support bracket, which is movably mounted on the vehicle frame; as well as Seat, which is mounted on the movable support; The movable support is configured to be adjustable, allowing it to move selectively forward or backward relative to the frame along the longitudinal direction of the child vehicle, independent of the rider's movement.

9. The child vehicle according to claim 8, characterized in that, The child vehicle also includes a movement adjustment device, which comprises: A locking element is configured to be movable between a locked position and an unlocked position. When the locking element is in the locked position, it restricts the movement of the movable bracket relative to the frame, while when the locking element is in the unlocked position, it allows the movement of the movable bracket relative to the frame.

10. The child vehicle according to claim 9, characterized in that: The frame includes a support rod extending along the longitudinal direction of the child vehicle; The movable support includes: A sliding sleeve, which is slidably fitted onto the support rod; and The movable support body is fixed to the sliding sleeve and is adapted to mount the seat; The locking member is movably disposed on the sliding sleeve. When the locking member moves to the locking position, it restricts the sliding of the sliding sleeve relative to the support rod. When the locking member moves to the unlocking position, it allows the sliding of the sliding sleeve relative to the support rod.

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