TWI893662B - Child carrier - Google Patents

Abstract

The present application discloses a linked foldable mechanism and a child carrier. The linked foldable mechanism includes a first rod, a second rod, a driving member, and a driven member. The driving member is fixed on the first rod. The driving member includes a first gear teeth portion. The driven member is fixed on the second rod. The driven member includes a second gear teeth portion. The first gear teeth portion is engaged with the second gear teeth portion. The linked foldable mechanism and the children’s carrier have a simple structure, and are not easy to cause a sandwiching phenomenon.

Description

Child carriers

The present invention relates to the technical field of children's carriers, and more particularly to a linked folding mechanism and a children's carrier.

Child carriers, such as strollers, have become essential travel tools for children, greatly improving their convenience. Strollers typically include a backrest to support the child's back. To reduce packaging and storage volume, the backrest typically folds with the frame. However, this linkage mechanism often relies on a connecting rod, which is complex and prone to entrapment, potentially causing injury to the child or parent.

Therefore, it is necessary to provide a linkage folding mechanism and a child carrier, which have simple structures and are not prone to being trapped.

In one aspect, the present invention provides a linked folding mechanism, which includes a first rod, a second rod, a driving member, and a follower. The driving member is fixed to the first rod, and the driving member has a first gear portion. The follower is fixed to the second rod, and the follower has a second gear portion. The first gear portion and the second gear portion engage with each other.

In one embodiment, the driving member is fixed to one end of the first rod, and the follower is fixed to one end of the second rod.

In one embodiment, the linked folding mechanism further includes a gear housing, which is pivotally connected to the first rod and covers the first gear portion. The gear housing has an engagement opening facing the second gear portion, and the second gear portion passes through the engagement opening to engage with the first gear portion.

In one embodiment, the gear housing further has an engagement hole, the driving member is fixed to one end of the first rod, the driving member and a portion of the first rod extend into the gear housing through the engagement hole, and the hole wall of the engagement hole has a first side and a second side opposite to each other. When the first rod rotates to abut against the first side, the angle between the first rod and the second rod is minimized. When the first rod rotates to abut against the second side, the angle between the first rod and the second rod is maximized.

In one embodiment, the gear housing includes a housing body and a housing cover, the housing cover is detachably covered on a side of the housing body facing the second gear portion, and the engagement opening is provided on the housing cover.

Another aspect of the present invention provides a children's carrier, comprising: a frame support structure including a backrest support rod and a seat support rod; a driver fixed to the seat support rod, the driver having a first gear portion; and a follower fixed to the backrest support rod, the follower having a second gear portion, the first gear portion and the second gear portion meshing with each other.

In one embodiment, the frame support structure further includes a rider assembly, which includes a first rider support lever, a second rider support lever, an operating member and a locking mechanism. The first rider support lever and the second rider support lever are pivoted through the locking mechanism, and the operating member is used to control the locking mechanism to switch between locked and unlocked states, so that the first rider support lever and the second rider support lever are switched between a relatively fixed state and a relatively rotating state.

In one embodiment, the frame support structure further includes a first connecting member, and the second rider support rod and the seat support rod are respectively pivotally connected to the first connecting member at different positions.

In one embodiment, the child carrier further includes a gear housing, which is pivoted on the seat support rod and covers the outside of the first gear portion. The gear housing has an engagement opening facing the second gear portion, and the second gear portion passes through the engagement opening to engage with the first gear portion. The first connecting member is an L-shaped structure, the apex of the L-shaped structure is fixed to the gear housing, one end of the L-shaped structure away from the apex is pivoted on the seat support rod, and the other end of the L-shaped structure away from the apex is pivoted on the second rider support rod.

In one embodiment, the frame support structure further includes a rear foot support rod and a second linking member, one end of the second linking member is pivotally connected to the seat support rod, and the other end is pivotally connected to the rear foot support rod and the second rider support rod.

In one embodiment, the frame support structure further includes a front leg assembly, which is pivotally connected to the seat support rod.

In one embodiment, the front leg assembly includes a first front leg support rod, a front leg connector, and a second front leg support rod pivotally connected in sequence, wherein one end of the first front leg support rod away from the front leg connector is pivotally connected to the first rider support rod, the front leg connector is fixedly connected to the rear leg support rod at an angle, and the second front leg support rod is pivotally connected to the seat support rod.

In one embodiment, the child carrier further includes a seat plate fixed to the seat support rod.

In one embodiment, there are two frame support structures, and the seat support rods of the two frame support structures are respectively fixed to the left and right sides of the seat plate. There are also two driving members and two follower members, which are respectively used to realize the linked folding between the seat support rods and the backrest support rods of the two frame support structures.

In one embodiment, the child carrier further includes an extension plate, the front side of the extension plate is pivotally connected to the rear side of the seat plate, and the two ends of the rear side of the extension plate are respectively fixed to the back support rods of the two frame support structures.

In one embodiment, the child carrier further includes a backrest adjustment structure, which includes an adjusting member, a swivel seat, a drive block, a gear and an elastic member. The follower is provided with a first gear groove that engages with the gear. The follower, the gear and the swivel seat are coaxially pivoted. The backrest support rod is fixed to the swivel seat. The drive block is drivingly connected to the gear. The elastic member is connected between the follower and the gear. The adjusting member is used to drive the drive block to drive the gear out of the first gear groove.

Another aspect of the present invention provides a children's carrier, comprising: a frame support structure, including a seat support rod, a rider assembly, a first linkage, a rear foot support rod, and a second linkage; wherein the rider assembly includes a first rider support rod and a second rider support rod, the second rider support rod and the seat support rod being pivotally connected to the first linkage at different positions, respectively; wherein one end of the second linkage is pivotally connected to the seat support rod, and the other end is pivotally connected to the rear foot support rod and the second rider support rod.

In one embodiment, the rider assembly further includes an operating member and a locking mechanism, wherein the first rider support lever and the second rider support lever are pivotally connected through the locking mechanism, and the operating member is used to control the locking mechanism to switch between a locked state and an unlocked state, so that the first rider support lever and the second rider support lever are switched between a relatively fixed state and a relatively rotating state.

In one embodiment, the child carrier further includes a gear housing, which is pivoted on the seat support rod and covers the outside of the first gear portion. The gear housing has an engagement opening facing the second gear portion, and the second gear portion passes through the engagement opening to engage with the first gear portion. The first connecting member is an L-shaped structure, the apex of the L-shaped structure is fixed to the gear housing, one end of the L-shaped structure away from the apex is pivoted on the seat support rod, and the other end of the L-shaped structure away from the apex is pivoted on the second rider support rod.

In one embodiment, the frame support structure further includes a front leg assembly, which is pivotally connected to the seat support rod.

In one embodiment, the front leg assembly includes a first front leg support rod, a front leg connector, and a second front leg support rod pivotally connected in sequence, wherein one end of the first front leg support rod away from the front leg connector is pivotally connected to the first rider support rod, the front leg connector is fixedly connected to the rear leg support rod at an angle, and the second front leg support rod is pivotally connected to the seat support rod.

In one embodiment, the child carrier further includes a seat plate fixed to the seat support rod.

In one embodiment, the frame support structure further includes a backrest support rod. There are two frame support structures, and the seat support rods of the two frame support structures are respectively fixed to the left and right sides of the seat plate. There are also two driving members and two follower members, which are respectively used to realize the linked folding between the seat support rods and the backrest support rods of the two frame support structures.

In one embodiment, the child carrier further includes an extension plate, the front side of the extension plate is pivotally connected to the rear side of the seat plate, and the two ends of the rear side of the extension plate are respectively fixed to the back support rods of the two frame support structures.

In one embodiment, the child carrier further includes a backrest adjustment structure, which includes an adjusting member, a swivel seat, a drive block, a gear and an elastic member. The follower is provided with a first gear groove that engages with the gear. The follower, the gear and the swivel seat are coaxially pivoted. The frame support structure further includes a backrest support rod, which is fixed to the swivel seat. The drive block is drivingly connected to the gear. The elastic member is connected between the follower and the gear. The adjusting member is used to drive the drive block to drive the gear out of the first gear groove.

In one embodiment, the frame support structure further includes a backrest support rod, and the child carrier further includes: a driving member fixed to the seat support rod, the driving member having a first gear portion; a follower fixed to the backrest support rod, the follower having a second gear portion, and the first gear portion and the second gear portion meshing with each other.

In one embodiment, the frame support structure further includes a backrest support rod, which is pivotally connected to the seat support rod.

In the aforementioned linked folding mechanism and child carrier, the first and second levers achieve linked folding via a first gear on the driver and a second gear on the follower. Rotation of the first lever drives the second lever to rotate accordingly, thereby achieving the linked folding function. For example, if the first lever is a seat support lever and the second lever is a backrest support lever, rotating and folding the seat support lever also drives the backrest support lever to rotate and fold. The linked folding mechanism is simple in structure and, by replacing a traditional connecting rod structure with the cooperation of two gears, is less susceptible to pinching and offers a higher safety factor.

As shown in Figures 1, 7, and 8, one embodiment of the present invention provides a child carrier, such as a stroller, comprising a frame support structure 100, a driving member 200, a driven member 300, a gear housing 400, and a seat plate 500. The child carrier has a simple structure, is less likely to cause entrapment when folded, and offers a high safety factor.

Specifically, as shown in Figures 1 and 2, the frame support structure 100 includes a rider assembly 110, a seat support rod 120, a rear foot support rod 130, a front foot assembly 140, a backrest support rod 150, a first link 160, a second link 170, a backrest adjustment structure 180 and an armrest 190.

The rider assembly 110 includes a first rider support lever 111, a second rider support lever 112, an operating member 113, and a locking mechanism 114. The first rider support lever 111 and the second rider support lever 112 are pivotally connected via the locking mechanism 114. The operating member 113 is used to control the locking mechanism 114 to switch between a locked and unlocked state, thereby switching the first rider support lever 111 and the second rider support lever 112 between a relatively fixed state and a relatively rotatable state. In this embodiment, when the stroller is in the fully opened position (i.e., fully opened and ready for use), the first rider support lever 111 is located above the second rider support lever 112.

As shown in Figures 3 and 4 , the second rider support lever 112 and the seat support lever 120 are respectively pivoted at different locations with a first linkage 160. The first linkage 160 enables the second rider support lever 112 and the seat support lever 120 to be retracted and retracted in a coordinated manner. Specifically, when the second rider support lever 112 rotates, the seat support lever 120 rotates accordingly.

In this embodiment, as shown in Figures 4 and 13 , the first linking member 160 is a generally L-shaped iron sheet. The apex of the L-shaped structure is fixed to the gear housing 400. One end of the L-shaped structure, distal from the apex, is pivoted to the seat support rod 120, while the other end of the L-shaped structure, distal from the apex, is pivoted to the second rider support rod 112. Of course, in other embodiments, the first linking member 160 may also have other shapes or materials.

Furthermore, as shown in FIG4 , the second linkage 170 is a generally elongated iron sheet. One end of the second linkage 170 is pivotally connected to the seat support rod 120, and the other end is pivotally connected to the rear leg support rod 130 and the second rider support rod 112. The second linkage 170 enables the seat support rod 120 and the rear leg support rod 130 to move in a coordinated manner. When the seat support rod 120 rotates, the rear leg support rod 130 rotates accordingly.

Specifically, as shown in Figure 1, the front leg assembly 140 is pivoted to the seat support rod 120. The front leg assembly 140 includes a first front leg support rod 141, a front leg connector 142, and a second front leg support rod 143, which are pivotally connected in sequence. In this embodiment, when the stroller is in the fully opened position, the first front leg support rod 141, the front leg connector 142, and the second front leg support rod 143 are tilted in sequence from top to bottom. The end of the first front leg support rod 141, distal from the front leg connector 142, is pivotally connected to the first rider support rod 111. The pivot point between the first front leg support rod 141 and the first rider support rod 111 is located on the side of the locking mechanism 114 that is distal from the second rider support rod 112. That is, the pivot point between the first front leg support rod 141 and the first rider support rod 111 is spaced apart from the locking mechanism 114. The front leg connector 142 is fixedly connected to the rear leg support rod 130 at an angle. The second front leg support rod 143 is pivotally connected to the seat support rod 120. As shown in Figures 7 to 12, when the operating member 113 is operated, the locking mechanism 114 between the first rider support lever 111 and the second rider support lever 112 is unlocked, and the first rider support lever 111 rotates relative to the locking mechanism 114, for example, in a counterclockwise direction. Then, the first front leg support lever 141, driven by the first rider support lever 111, rotates clockwise relative to the front leg connecting member 142. At the same time, the second rider support rod 112 rotates clockwise relative to the locking mechanism 114 and drives the seat support rod 120 to rotate counterclockwise relative to the first link 160 through the first link 160. At the same time, the seat support rod 120 drives the second front leg support rod 143 to rotate counterclockwise relative to the front leg connecting member 142. At the same time, the seat support rod 120 drives the rear leg support rod 130 to rotate clockwise relative to the second link 170 via the second link 170. Since the rear leg support rod 130 is fixed to the front leg connector 142, the front leg assembly 140 folds in three stages. The first front leg support rod 141, the rear leg support rod 130, and the second front leg support rod 143 fold toward each other, greatly reducing the overall volume of the folded stroller.

Furthermore, as shown in Figures 10, 12, and 14, the driver 200 is fixed to the seat support rod 120 and has a first gear portion 210. The follower 300 is fixed to the backrest support rod 150 and has a second gear portion 310. The first gear portion 210 engages with the second gear portion 310. In this embodiment, the driver 200 is roughly in the shape of a quarter gear, and the central angle of the first gear portion 210 is approximately 90 degrees. The follower 300 includes a disc-shaped fixed base 320 and a driven body 330 in the shape of a third gear. The fixed base 320 is fixed to the backrest support rod 150. Specifically, the fixed base 320 and the backrest support rod 150 are engaged and connected via a swivel base 182. The driven body 330 is fixed to the fixed base 320. In this embodiment, the driven body 330 and the fixed base 320 are integrally formed. Of course, in other embodiments, the driven body 330 and the fixed base 320 can also be two separate components assembled together. The second gear 310 is provided on the driven body 330. Of course, the shapes of the driving member 200 and the driven member 300 are not limited to this. The central angle of the first gear portion 210 and the second gear portion 310 can also be adjusted according to actual needs. In this way, the seat support rod 120 and the backrest support rod 150 can be linked and folded through the first gear portion 210 on the driving member 200 and the second gear portion 310 on the driven member 300. Specifically, during folding, as the seat support rod 120 rotates counterclockwise relative to the first link 160, driven by the first link 160, the backrest support rod 150 rotates clockwise relative to the drive member 200, causing the seat support rod 120 and the backrest support rod 150 to move toward each other and fold. The use of two cogging gears replaces the traditional connecting rod structure, resulting in a simpler structure, less prone to pinching, and a higher safety factor.

Furthermore, the driver 200 is fixed to one end of the seat support rod 120, and the follower 300 is fixed to one end of the backrest support rod 150. This not only facilitates manufacturing and processing, but also increases the torque of the seat support rod 120 during the linked rotation process, so that only a small force applied to the seat support rod 120 is required to drive the backrest support rod 150 to rotate.

Furthermore, as shown in Figures 8 and 13 , a gear housing 400 is pivoted to the seat support rod 120 and covers the first gear 210. The gear housing 400 has an engagement opening 411 facing the second gear 310. The second gear 310 passes through the engagement opening 411 and engages with the first gear 210. The gear housing 400 covers the first and second gears 210, 310, protecting the user from scratches and enhancing safety.

Optionally, as shown in Figures 4 and 8, the gear housing 400 further has an engagement hole 412. The driver 200 is fixed to one end of the seat support rod 120, and the driver 200 and a portion of the seat support rod 120 extend into the gear housing 400 through the engagement hole 412. The wall of the engagement hole 412 has a first side and a second side that are opposite to each other. When the seat support rod 120 rotates to abut against the first side, the angle between the seat support rod 120 and the backrest support rod 150 is minimized, and the stroller is in the fully opened position. When the seat support rod 120 rotates to abut against the second side, the angle between the seat support rod 120 and the backrest support rod 150 is maximum, and the stroller is in the folded position. In this way, the rotation angle of the seat support rod 120 can be limited.

Alternatively, as shown in Figures 6 and 13 , the gear housing 400 includes a housing body 450 and a housing cover 460. The housing cover 460 is removably mounted on one side of the housing body 450, for example, on the side of the housing body 450 facing the second gear portion 310. A snap-fit opening 411 is provided on the housing cover 460. This facilitates removal and replacement of the driver 200. In this embodiment, the driven body 330 is disposed within the housing body 450, the fixing seat 320 covers a portion of one side of the housing body 450, and the housing cover 460 covers another portion of the same side of the housing body 450.

Furthermore, as shown in Figures 1 to 4 , the seat plate 500 is fixed to the seat support rod 120. In this embodiment, there are two frame support structures 100, with the seat support rods 120 of the two frame support structures 100 being fixed to the left and right sides of the seat plate 500, respectively. There are also two driving members 200 and two driven members 300, each used to achieve coordinated folding and retracting between the seat support rods 120 and the backrest support rods 150 of the two frame support structures 100.

Specifically, as shown in Figures 16 and 17 , the backrest adjustment structure 180 includes an adjustment member 181, a rotating seat 182, a drive block 183, a gear 184, and an elastic member 185. A first gear groove 340 is defined on the follower 300, which engages with the gear 184, while a second gear groove is defined in the rotating seat 182, which engages with the gear 184. In this embodiment, the first gear groove 340 is defined in the fixed seat 320 of the follower 300, which engages with the gear 184. The driven member 300, gear 184, and swivel base 182 are coaxially pivoted. The back support rod 150 is fixed to the swivel base 182. The drive block 183 is drivingly connected to the gear 184. The elastic member 185 is connected between the driven member 300 and the gear 184. The adjusting member 181 is used to drive the drive block 183 to drive the gear 184 out of the first gear groove 340. In this embodiment, the adjusting member 181 is an adjusting wire. To adjust the angle of the backrest support rod 150 relative to the seat plate 500, the adjustment member 181 is pulled, driving the drive block 183 to drive the gear 184 out of the first gear groove 340, releasing the engagement lock between the backrest support rod 150 and the follower 300, thereby adjusting the angle of the backrest support rod 150. The elastic member 185 then restores the gear 184 to its engagement lock within the fixing base 320.

Furthermore, the armrest 190 is a U-shaped rod, and the two ends of the armrest 190 are detachably connected to the front foot connectors 142 of the two frame support structures 100.

In another embodiment, as shown in Figures 14 and 15 , the child carrier further includes an extension panel 600. The front side of the extension panel 600 is pivotally connected to the rear side of the seat panel 500, and the two rear ends of the extension panel 600 are respectively fixed to the backrest support rods 150 of the two frame support structures 100. The extension panel 600 can be connected to the seat panel 500 to create a more spacious and comfortable riding space. Moreover, the extension panel 600 is pivotally connected to the seat panel 500 and is fixed to the backrest support rods 150. Therefore, during folding, the backrest support rods 150 can drive the extension panel 600 to fold relative to the seat panel 500, further reducing the volume of the folded child carrier.

Another embodiment of the present invention provides a linked folding mechanism suitable for use in a child carrier, such as a stroller. The linked folding mechanism has a simple structure, is not prone to entrapment, and has a high safety factor.

Specifically, as shown in FIG8 , FIG10 and FIG12 , the linked folding mechanism includes a first lever 10 , a second lever 20 , a driving member 200 , a driven member 300 and a gear housing 400 .

The driver 200 is fixed to the first lever 10 and has a first gear portion 210. The follower 300 is fixed to the second lever 20 and has a second gear portion 310. The first gear portion 210 engages with the second gear portion 310. The first lever 10 can be, for example, the seat support lever 120 of a stroller, and the second lever 20 can be, for example, the backrest support lever 150 of the stroller. Of course, in other embodiments, the first lever 10 and the second lever 20 may also be other components of the stroller that require a linked folding function. For example, the first lever 10 may be the handle assembly 110 of the stroller, and the second lever 20 may be the seat support rod 120 of the stroller. This is not a limitation. In this embodiment, the driving member 200 is generally in the shape of a quarter gear, and the central angle of the first gear tooth 210 is approximately 90 degrees. The follower 300 includes a disc-shaped mounting base 320 and a driven body 330 in the shape of a third gear. The mounting base 320 is fixed to the second rod 20, and the driven body 330 is fixed to the mounting base 320. In this embodiment, the driven body 330 and the mounting base 320 are integrally formed. However, in other embodiments, the driven body 330 and the mounting base 320 may be assembled as two separate components. The second gear 310 is mounted on the driven body 330. The central angle between the first gear 210 and the second gear 310 is configured to limit the angle between the first rod 10 and the second rod 20 to a certain range. Of course, the shapes of the driver 200 and follower 300 are not limited to this. The central angle of the first and second gears 210, 310 can also be adjusted according to actual needs. In this way, the first and second rods 10, 20 achieve linked retraction via the first gear 210 on the driver 200 and the second gear 310 on the follower 300. Replacing the traditional connecting rod structure with the coordinated use of two gears results in a simpler structure, less prone to pinching, and a higher safety factor.

Furthermore, the driving member 200 is fixed to one end of the first rod 10, and the driven member 300 is fixed to one end of the second rod 20. This not only facilitates the manufacturing and processing of the linked folding mechanism, but also increases the torque of the first rod 10 during the linked rotation process, so that only a small force needs to be applied to the first rod 10 to drive the rotation of the second rod 20.

Furthermore, as shown in Figures 8 and 13 , the linked folding mechanism further includes a gear housing 400. The gear housing 400 is pivotally connected to the first lever 10 and covers the first gear portion 210. The gear housing 400 has an engagement opening 411 facing the second gear portion 310. The second gear portion 310 passes through the engagement opening 411 and engages with the first gear portion 210. The gear housing 400 covers the first and second gear portions 210, 310, protecting the user from scratches from the first and second gear portions 210, 310, and enhancing the safety of the linked folding mechanism.

Optionally, as shown in Figures 4 and 8, the gear housing 400 further has an engagement hole 412. The driver 200 is fixed to one end of the first rod 10, and the driver 200 and a portion of the first rod 10 extend into the gear housing 400 through the engagement hole 412. The wall of the engagement hole 412 has a first side and a second side that are opposite to each other. When the first rod 10 rotates to abut against the first side, the angle between the first rod 10 and the second rod 20 is minimized, and the linked folding mechanism is in its fully opened state. When the first rod 10 rotates to abut against the second side, the angle between the first rod 10 and the second rod 20 is maximized, and the linked folding mechanism is in its fully retracted state. In this way, the rotation angle of the first rod 10 can be limited.

Alternatively, as shown in Figures 6 and 13 , the gear housing 400 includes a housing body 450 and a housing cover 460. The housing cover 460 is removably mounted on one side of the housing body 450, for example, on the side of the housing body 450 facing the second gear portion 310. A snap-fit opening 411 is provided on the housing cover 460. This facilitates removal and replacement of the driver 200. In this embodiment, the driven body 330 is disposed within the housing body 450, the fixing seat 320 covers a portion of one side of the housing body 450, and the housing cover 460 covers another portion of the same side of the housing body 450.

The aforementioned linked folding mechanism and child carrier have at least the following advantages:

The first lever 10 and the second lever 20 achieve linked folding via a first gear 210 on the driver 200 and a second gear 310 on the follower 300. Rotation of the first lever 10 drives the second lever 20 to rotate accordingly, thereby achieving a linked folding mechanism. For example, if the first lever 10 is the seat support lever 120 and the second lever 20 is the backrest support lever 150, rotating the seat support lever 120 also drives the backrest support lever 150 to rotate and fold. This linked folding mechanism is simple in structure and, by replacing a traditional connecting rod structure with two gears, is less susceptible to pinching and offers a higher safety factor.

The various technical features of the above-described embodiments can be combined arbitrarily. To simplify the description, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The embodiments described above merely illustrate several possible implementations of the present invention. While these descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that variations and modifications are possible for those skilled in the art without departing from the spirit of the present invention, and such modifications fall within the scope of protection of the present invention. Therefore, the scope of protection of the present patent shall be governed by the appended claims.

100: Frame support structure 110: Rider assembly 111: First rider support lever 112: Second rider support lever 113: Operating member 114: Locking mechanism 120: Seat support lever 130: Rear leg support lever 140: Front leg assembly 141: First front leg support lever 142: Front leg connector 143: Second front leg support lever 150: Backrest support lever 160: First linking member 170: Second linking member 180: Backrest adjustment mechanism 181: Adjustment member 182: Swivel seat 183: Drive block 184: Gear 185: Elastic member 190: Handrail 200: Drive member 210: First gear 300: Follower 310: Second gear 320: Mounting base 330: Follower body 340: First gear groove 400: Gear housing 411: Engagement opening 412: Engagement hole 450: Housing 460: Housing cover 500: Seat plate 600: Extension plate 10: First lever 20: Second lever

FIG1 is a schematic structural diagram of a children's carrier provided in accordance with an embodiment of the present invention.

Figure 2 is an enlarged view of point A in Figure 1.

FIG3 is a schematic structural diagram of the child carrier of FIG1 from another perspective.

Figure 4 is an enlarged view of point B in Figure 3.

FIG5 is a schematic diagram showing the structure of the child carrier of FIG1 with the seat and armrests omitted.

FIG6 is an enlarged view of point C in FIG5.

FIG7 shows a side cross-sectional view of the child carrier of FIG5 , when the child carrier is in the opened position.

FIG8 is an enlarged view of point D in FIG7.

FIG9 shows a side cross-sectional view of the child carrier of FIG5 , in which the child carrier is in a transition state between the fully opened state and the fully folded state.

Figure 10 is an enlarged view of point E in Figure 9.

FIG11 shows a side cross-sectional view of the child carrier of FIG5 , in which the child carrier is in a folded state.

FIG12 is an enlarged view of point F in FIG11 .

FIG13 is a partial enlarged view of FIG3 .

FIG14 is a schematic structural diagram of a child carrier provided by another embodiment of the present invention, in which the child carrier is in an opened position.

FIG15 is a schematic structural diagram of the child carrier of FIG14 from another perspective, in which the child carrier is in a folded state.

FIG. 16 is an exploded view of a portion of the child carrier of FIG. 14 .

FIG17 is a schematic diagram of FIG16.

112: Second driver supports pole

130: Rear foot support rod

141: First front foot support

142: Front foot connector

143: Second front foot support pole

150: Back support pole

160: First connecting member

182: Rotating seat

200: Drive parts

210: First gear teeth

300: Follower

310: Second gear

320: Fixed seat

330: Slave Subject

400: Gear housing

20: Second rod

Claims (11)

A child carrier comprises: A frame support structure including a seat support rod, a rider assembly, a first linkage, a rear foot support rod, and a second linkage; The rider assembly includes a first rider support rod and a second rider support rod, wherein the second rider support rod and the seat support rod are respectively pivoted to the first linkage rod at different locations; The second linkage rod has one end pivoted to the seat support rod and the other end pivoted to the rear foot support rod and the second rider support rod. A child carrier as described in claim 1, wherein the rider assembly further includes an operating member and a locking mechanism, the first rider support rod and the second rider support rod are pivoted through the locking mechanism, and the operating member is used to control the locking mechanism to switch between locked and unlocked states, so that the first rider support rod and the second rider support rod are switched between relatively fixed and relatively rotating states. A child carrier as described in claim 1, wherein the child carrier further includes a gear housing, the gear housing is pivoted on the seat support rod and covers the outside of the first gear portion, the gear housing has an engagement opening facing the second gear portion, the second gear portion passes through the engagement opening and engages with the first gear portion, the first connecting member is an L-shaped structure, the apex of the L-shaped structure is fixed to the gear housing, one end of the L-shaped structure away from the apex is pivoted on the seat support rod, and the other end of the L-shaped structure away from the apex is pivoted on the second rider support rod. The children's carrier as described in claim 1, wherein the frame support structure further includes a front leg assembly, and the front leg assembly is pivotally connected to the seat support rod. A children's carrier as described in claim 4, wherein the front leg assembly includes a first front leg support rod, a front leg connector, and a second front leg support rod pivotally connected in sequence, wherein one end of the first front leg support rod away from the front leg connector is pivotally connected to the first rider support rod, the front leg connector is fixedly connected to the rear leg support rod at an angle, and the second front leg support rod is pivotally connected to the seat support rod. The child carrier according to claim 1 further comprises a seat plate fixed to the seat support rod. As described in claim 6, the frame support structure further includes a backrest support rod, a driving member fixed to the seat support rod and a follower fixed to the backrest support rod. There are two frame support structures, and the seat support rods of the two frame support structures are respectively fixed to the left and right sides of the seat plate. There are also two driving members and two follower members, which are respectively used to realize the linked folding and retracting between the seat support rods and the backrest support rods of the two frame support structures. A child carrier as described in claim 7, wherein the child carrier further includes an extension plate, the front side of the extension plate is hinged to the rear side of the seat plate, and the two ends of the rear side of the extension plate are respectively fixed to the back support rods of the two frame support structures. The child carrier as claimed in any one of claims 1 to 8, wherein the child carrier further comprises a backrest adjustment structure, the backrest adjustment structure comprising an adjustment member, a swivel seat, a drive block, a gear and an elastic member, the frame support structure further comprises a backrest support rod and a follower fixed to the backrest support rod, the backrest support rod being fixed to the swivel seat. On the swivel seat, the driven member is provided with a first gear groove engaged with the gear, the driven member, the gear and the swivel seat are coaxially pivoted, the driving block is drivingly connected to the gear, the elastic member is connected between the driven member and the gear, and the adjusting member is used to drive the driving block to drive the gear out of the first gear groove. The child carrier as described in claim 1, wherein the frame support structure further includes a backrest support rod, and the child carrier further includes: a driving member fixed to the seat support rod, the driving member having a first gear portion; a follower fixed to the backrest support rod, the follower having a second gear portion, the first gear portion and the second gear portion engaging with each other. The child carrier according to claim 1, wherein the frame support structure further includes a backrest support rod, and the backrest support rod is pivotally connected to the seat support rod.