Linkable folding children's chair used in baby carriages

Abstract

The present invention belongs to the field of baby strollers, and more particularly relates to a linked foldable child chair for baby strollers. The seat body comprises a seat frame and a backrest frame hinged to the seat frame, wherein a locking assembly is provided at the hinged joint between the seat frame and the backrest frame to restrict the backrest frame from rotating relative to the seat frame, a seat locking assembly is provided between the seat frame and the baby stroller to restrict the seat frame from rotating relative to the baby stroller, and an unlocking device is provided on the backrest frame to unlock the locking assembly. The child chair portion has a two-stage folding function, wherein the backrest frame can be rotated toward the seat frame for folding, and the seat frame can be rotated relative to the baby stroller for folding twice, thereby reducing the overall space of the baby stroller after folding and folding, making it easier to store. Furthermore, after the locking assembly is unlocked by using the unlocking device on the backrest frame, the backrest frame can be folded toward the seat frame, and the seat locking assembly between the seat frame and the frame is unlocked, allowing the seat to fold together.

Description

Technical field

[0001] The invention belongs to the field of baby carriages, and in particular relates to a linked foldable baby chair on a baby carriage. [Background Technology]

[0002] A stroller is a baby's "transportation tool," requiring assistance in pushing or pulling. It's an essential tool for parents to take their babies out for walks and strolls. With the development of strollers, their portability has gained increasing attention among parents. Because strollers are relatively large when unfolded, they often feature foldable frames that allow them to be folded for easy transport or storage. Therefore, the folding method and operation of strollers have become a selling point for consumers.

[0003] The existing baby strollers are generally folded by rotating the frame hinge to fold it in half. However, the rotating folding method has the following problems: firstly, the thickness of the baby stroller will be very large after the folding method is rotated in half. Secondly, the seat cannot be folded. Generally, it rotates with the frame to a vertical state. Then, by releasing the backrest frame, the seat is turned to a vertical state with the backrest at the bottom, so that the baby stroller is folded together. However, the backrest is in a free state and can still swing freely in the folded state. It cannot form a fixed folded state, which makes it inconvenient to carry. [Summary of the invention]

[0004] In order to solve the problem that the child chair in the prior art baby carriage cannot be folded, the present invention provides a linkage foldable child chair for the baby carriage.

[0005] The present invention is achieved through the following technical solutions:

[0006] A linked foldable child chair used in a baby carriage comprises a seat body, the seat body comprising a seat frame and a backrest frame hinged to the seat frame, and a locking assembly is provided at the hinge between the seat frame and the backrest frame for limiting the rotation of the backrest frame relative to the seat frame, a seat locking assembly is provided between the seat frame and the baby carriage for limiting the rotation of the seat frame relative to the baby carriage, an unlocking device is provided on the backrest frame for unlocking the locking assembly, and after the locking assembly is unlocked, the backrest frame can be rotated and folded toward the seat frame, and when the backrest frame is rotated relative to the seat frame, the seat locking assembly can be unlocked so that the seat frame can be rotated and folded relative to the baby carriage.

[0007] As described above, the linked foldable child chair used in a baby carriage is further provided with an armrest between the backrest frame and the seat frame. When the backrest frame rotates relative to the seat frame, the armrest can be unlocked so that the armrest can rotate relative to the seat frame and fold together.

[0008] The foldable children's chair for children's stroller as described above has a linked foldable children's chair, the lower end of the backrest frame is provided with a backrest frame hinge, the seat frame is provided with a seat frame hinge that cooperates with the backrest frame hinge, and the lower end of the armrest is also provided with an armrest hinge located between the back frame hinge and the seat frame hinge. The locking assembly includes a first locking member provided between the back frame hinge and the seat frame hinge and connected to the seat frame hinge. The unlocking device includes a locking pin provided on the backrest frame and extending into the seat frame hinge to cooperate with the first locking member, an unlocking button provided on the backrest frame that can pull the locking pin to move, and a connecting rope provided between the unlocking button and the locking pin. The locking pin can be pulled toward the backrest frame by the unlocking button to disengage from the first locking member, thereby allowing the backrest frame to rotate relative to the seat frame.

[0009] The linked foldable children's chair used in a baby carriage as described above is further provided with a sliding locking member on the first locking member, and the seat frame hinge is further provided with a second locking member extending out of the seat frame hinge and locking with the baby carriage, the lower end of the sliding locking member has a contact arm extending above the second locking member, and the inner side of the backrest frame hinge is provided with a protrusion, and when the backrest frame rotates relative to the seat frame, the sliding locking member is pressed by the protrusion, causing the sliding locking member and the second locking member to move downward, and the seat frame can be rotated and folded relative to the baby carriage.

[0010] As described above, in the linked foldable child chair used in a baby carriage, the upper end of the sliding locking member is a tapered head with lower sides and a higher middle, and a return spring is provided between the sliding locking member and the first locking member.

[0011] As described above, the linked foldable child chair used in a baby carriage has a latching protrusion extending toward the armrest hinge on one side of the upper end of the sliding latch, and a slot for the latching protrusion to be engaged on the inner peripheral wall of the armrest hinge. When the latching protrusion moves downward with the sliding latch and disengages from the slot, the armrest can be rotated and folded relative to the seat frame.

[0012] As described above, the linked foldable child chair used in a baby carriage has a rotating seat connected to the baby carriage on the outside of the seat frame hinge. One end of the second locking member is located in the rotating seat, and the other end passes through the rotating seat and extends into the seat frame hinge.

[0013] As described above, the linked foldable children's chair used in a baby carriage has a cavity at one end of the rotating seat opposite to the baby carriage, a matching protrusion extending into the cavity is provided on the baby carriage, and a notch is provided at the lower end of the matching protrusion for the second locking member to be locked in.

[0014] As described above, the linked foldable children's chair used in a baby carriage has an outwardly protruding limiting block on the circumference of the mating protrusion, and a limiting step on the inner wall of the cavity.

[0015] The linked foldable children's chair used in a baby carriage as described above, the seat body can be detachably installed on the baby carriage, and a disassembly locking assembly is also provided between the seat frame and the baby carriage. The disassembly locking assembly includes an embedded block provided on the side of the rotating seat opposite to the seat frame hinge, and a slide groove provided on the outside of the seat frame hinge for the embedded block to be inserted into. The rotating seat is provided with a locking piece extending from the embedded block in the direction of the slide groove, and the slide groove is provided with a lock hole for the locking piece to extend into, and the seat frame hinge is also provided with a button that extends into the slide groove. By pressing the button, the locking piece can be disengaged from the lock hole, and the slide groove can move relative to the embedded block to separate the seat from the rotating seat or the frame.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The present invention provides a linked folding child chair for a baby stroller. The child chair portion has a two-stage folding function. The backrest frame can be rotated toward the seat frame for folding, and the seat frame can be rotated relative to the baby stroller for two folding steps. This makes the overall space of the baby stroller smaller after folding, making it easier to store. After the locking assembly is unlocked using the unlocking device on the backrest frame, the backrest frame can be folded toward the seat frame, unlocking the seat locking assembly between the seat frame and the frame. As a result, the seat can be folded together with the backrest. The linked unlocking and folding method makes operation easier. In addition, combined with the foldable form of the frame itself, the baby stroller of this solution can be folded to the maximum extent.

[0018] 2. The foldable child chair on the stroller of the present invention can be detachably mounted on the stroller frame, and its mounting and dismounting structure is simple and easy to operate. In addition, its mounting structure can be mounted upright or reversed, so that the orientation of the child chair can be freely changed according to usage requirements.

[0019] 3. The linked foldable child chair on the stroller of the present invention also features a height-adjustable backrest. This utilizes an elastic stopper that cooperates with different adjustment holes on the backrest frame to adjust the backrest's height in multiple levels. Furthermore, with its sliding adjustment and elastic stopper structure, the user only needs to pull the backrest firmly to move it relative to the backrest frame. When the elastic stopper aligns with the adjustment hole, the elastic stopper snaps into the corresponding adjustment hole under its elastic action, completing the height adjustment. Adjustment is easy, and the structure is simple; the backrest can be fixed relative to the backrest frame without a separate unlocking mechanism.

Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is the structural diagram of the children's chair;

[0022] Figure 2 This is the structural explosion diagram of the children's chair;

[0023] Figure 3 For the explosion of the hinge of the children's chair Figure 1 ;

[0024] Figure 4 For the explosion of the hinge of the children's chair Figure 2 ;

[0025] Figure 5 For the explosion of the hinge of the children's chair Figure 3 ;

[0026] Figure 6 This is a structural diagram of the hinge of the baby carriage;

[0027] Figure 7 A half-section view of the hinge between the stroller and the child chair;

[0028] Figure 8 This is a structural diagram of a linked foldable child chair on a baby carriage;

[0029] Figure 9 This is a diagram of the child chair with its backrest folded;

[0030] Figure 10 This is a diagram of the folded state of the children's chair;

[0031] Figure 11 This is a diagram of the baby carriage in the folded state;

[0032] Figure 12 This is a diagram of the reverse installation state of the child chair;

[0033] Figure 13 This is a diagram of the folded state of the child chair after reverse installation;

[0034] Figure 14 This is an exploded view of a baby carriage and a baby chair. [Specific implementation method]

[0035] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] The present invention is achieved through the following technical solutions:

[0037] like Figures 1 to 14 As shown, a linkage foldable child chair used in a baby carriage includes a seat body 2, wherein the seat body 2 includes a seat frame 21 and a backrest frame 22 hinged to the seat frame 21, and a locking assembly is provided at the hinge of the seat frame 21 and the backrest frame 22 for limiting the rotation of the backrest frame 22 relative to the seat frame 21, and a seat locking assembly is provided between the seat frame 21 and the baby carriage for limiting the rotation of the seat frame 21 relative to the baby carriage, and an unlocking device 8 is provided on the backrest frame 22 for unlocking the locking assembly, and after the locking assembly is unlocked, the backrest frame 22 can be rotated and folded toward the seat frame 21, and when the backrest frame 22 is rotated relative to the seat frame 21, the seat locking assembly can be unlocked so that the seat frame 21 can be rotated and folded relative to the baby carriage. The present invention provides a linked folding child chair for a baby stroller, wherein the child chair portion has a two-stage folding function. The backrest frame can be rotated toward the seat frame for folding, and the seat frame can be rotated relative to the baby stroller for folding twice, so that the overall space of the baby stroller after folding is smaller, making it easier to store. After the locking assembly is unlocked using the unlocking device on the backrest frame, the backrest frame can be folded toward the seat frame, unlocking the seat locking assembly between the seat frame and the frame, thereby folding the seat together during the folding of the backrest. The linked unlocking and folding method makes operation easier. In addition, combined with the foldable form of the frame itself, the baby stroller of this solution can be folded and retracted to the maximum extent.

[0038] In this embodiment, the stroller includes a frame, which includes an upper frame 11, a lower front frame 12, and a lower rear frame 13. The lower end of the upper frame 11 is hingedly connected to the upper ends of the lower front frame 12 and the lower rear frame 13. The hinged joints are provided with a frame folding assembly. The upper frame 11 is provided with an unlocking member. After the unlocking member is unlocked, the hinged ends of the upper frame 11, the lower front frame 12, and the lower rear frame 13 can rotate relative to each other. In this way, the upper frame 11 and the lower front frame 12 can both rotate toward the lower rear frame 13 to fold and collapse the stroller frame. This allows the frame and seat to be folded independently, making the entire stroller smaller when folded.

[0039] In this embodiment, an armrest 23 is provided between the backrest frame 22 and the seat frame 21. When the backrest frame 22 rotates relative to the seat frame 21, the armrest 23 is unlocked, allowing the armrest 23 to rotate and fold together with the seat frame 21. The armrest is also a common structure on children's chairs, and the armrest is located between the seat frame and the backrest frame. In this embodiment, the armrest frame is unlocked during the rotation and folding of the backrest frame, allowing the armrest to rotate and fold together, making the folding operation easier.

[0040] Specifically, a backrest frame hinge 221 is provided at the lower end of the backrest frame 22, a seat frame hinge 211 is provided on the seat frame 21 and cooperates with the backrest frame hinge 221, and an armrest hinge 231 is also provided at the lower end of the armrest 23 between the backrest hinge 221 and the seat frame hinge 211. The locking assembly includes a first locking member provided between the backrest hinge 221 and the seat frame hinge 211 and connected to the seat frame hinge 211. The unlocking device 8 includes a locking pin 81 disposed on the back frame 22 and extending into the seat frame hinge 211 to engage with the first locking member 31; an unlocking button disposed on the back frame 22 for pulling the locking pin 81; and a connecting rope disposed between the unlocking button and the locking pin 81. The unlocking button can be used to pull the locking pin 81 toward the back frame 22, disengaging it from the first locking member 31 and allowing the back frame 22 to rotate relative to the seat frame 21. In this embodiment, the connecting rope can be a steel wire rope. Furthermore, the locking pin engages with the first locking member to secure the back frame relative to the seat frame. After the locking pin 81 disengages, the back frame can rotate relative to the first locking member or the seat frame.

[0041] More specifically, the first latch 31 is further provided with a sliding latch 32, and the seat frame hinge 211 is further provided with a second latch 33 extending outside the seat frame hinge 211 to engage and latch with the vehicle frame 1. The lower end of the sliding latch 32 has a contact arm 321 extending above the second latch 33. The inner side of the backrest frame hinge 221 is provided with a protrusion 2211. When the backrest frame 22 rotates relative to the seat frame 21, the protrusion 2211 presses against the sliding latch 32, causing the sliding latch 32 and the second latch 33 to move downward, allowing the seat frame 21 to rotate and fold relative to the vehicle frame 1. This solution utilizes the cooperation of the sliding latch 32 with the first latch 31 and the second latch 33 to achieve the aforementioned linked unlocking. The detailed unlocking process is as follows: when the backrest frame rotates, the backrest frame hinge rotates to a certain position, which can push the sliding locking part to move downward. When the sliding locking part moves downward, the contact arm drives the second locking part to move downward, thereby unlocking the locking assembly between the seat frame and the vehicle frame, and unlocking the rotation of the seat. In addition, when the second locking part moves downward, the armrest frame is unlocked at the same time, so that the armrest frame and the seat frame are unlocked in conjunction with the rotation of the backrest frame.

[0042] Furthermore, the upper end of the sliding latch 32 is formed with a tapered head 322, which is lower on both sides and higher in the middle. As the backrest frame rotates, the inner protrusion first contacts the side of the head. Continued rotation, driven by the tapered slope, pushes the sliding latch downward, thereby achieving the aforementioned linked unlocking. A return spring is also provided between the sliding latch 32 and the first latch 31.

[0043] As described above, the armrest of the present invention is also unlocked in linkage. A latching protrusion 323 extending toward the armrest hinge 231 is provided on one side of the upper end of the sliding latch 32. A slot 2311 is provided on the inner wall of the armrest hinge 231 for the latching protrusion 323 to be engaged. After the sliding latch 32 moves downward, the latching protrusion 323 disengages from the slot 2311, and the armrest 23 can be rotated and folded relative to the seat frame 21.

[0044] In addition, a rotating seat 41 connected to the frame 1 is further provided on the outside of the seat frame hinge 211, and one end of the second locking member 33 is located in the rotating seat 41, and the other end passes through the rotating seat 41 and extends into the seat frame hinge 211; a cavity 410 is provided at one end of the rotating seat 41 opposite to the frame 1, and a mating protrusion 42 extending into the cavity 410 is provided on the frame 1, and a notch is provided at the lower end of the mating protrusion 42 for the second locking member 33 to be engaged; an outwardly protruding limit block 421 is provided on the circumferential surface of the mating protrusion 42, and a limit step 411 is provided on the inner wall of the cavity 410.

[0045] Furthermore, the seat body 2 is detachably mounted on the vehicle frame 1, and a detachable locking assembly is provided between the seat frame 21 and the vehicle frame 1. The child chair can be detachably mounted on the vehicle frame, offering a simple installation and removal structure and convenient operation. Furthermore, the mounting structure allows for both upright and reverse installation, allowing the child chair's orientation to be freely adjusted based on user needs.

[0046] Specifically, the disassembly locking assembly includes an insert block 51 disposed on the side of the rotating seat 41 opposite the seat frame hinge 211, a slide groove 52 disposed on the outside of the seat frame hinge 211 for the insert block 51 to engage, a locking member 53 extending from the insert block 51 toward the slide groove 52 on the rotating seat 41, a locking hole 54 disposed within the slide groove 52 for the locking member 53 to extend into, and a button 55 extending into the slide groove 52 is disposed on the seat frame hinge 211. Pressing the button 55 disengages the locking member 53 from the lock hole, allowing the slide groove 52 to move relative to the insert block 51, thereby separating the seat from the rotating seat or the vehicle frame. This arrangement has a simple structure and is easy to operate. Unlocking the rotating seat allows the seat to rotate relative to the vehicle frame, and unlocking the disassembly locking assembly allows the seat to be removed relative to the rotating seat. This allows the seat to be rotated and folded even after it has been rotated.

[0047] Furthermore, the upper end of the locking member 53 is curved, and the lower end of the button 55 extends into the slot 52 to abut against the upper end of the locking member 53. The contact surface of the button 55 is also curved or inclined. Thus, when unlocking, pressing the button 55 causes the lower inclined or curved surface to cooperate, moving the locking member 53 toward the vehicle frame, thereby disengaging it from the lock hole and completing the unlocking process.

[0048] More specifically, the slide slot 52 has a recessed area 521 below the locking hole 54. A through-hole is also provided within the recessed area 521. The contact arm 321 of the sliding latch 32 extends through the through-hole to the outside of the seat frame hinge 211. One end of the second latch 33 passes through the rotating seat and is located within the recessed area 521. Furthermore, the extended length of the contact arm 321 does not exceed the recessed area 521, providing a clearing effect. This ensures that the contact arm does not interfere with the child chair during disassembly, ensuring smooth removal and installation.

[0049] Furthermore, a backrest angle adjustment component is provided between the backrest frame 22 and the seat frame 21 to adjust the angle between the backrest frame 22 and the seat frame 21. The backrest angle can be adjusted to adjust different sitting postures according to different usage requirements.

[0050] Specifically, the first locking member 31 is provided with a plurality of adjustment slots 301 on its periphery for the locking pins 81 to engage. The backrest angle can be adjusted by pressing the unlock button to disengage the locking pins 81 and insert them into other adjustment slots 301. This utilizes the existing structure of the locking assembly. After unlocking the locking mechanism, the backrest frame can be rotated toward the seat frame to fold, while a small rotation or reverse rotation can be used to adjust the backrest angle.

[0051] Furthermore, the backrest frame 22 is provided with a backrest height adjustment assembly for adjusting the height of the backrest frame 22. The backrest frame 22 is also provided with a backrest 220. The backrest height adjustment assembly includes an elastic stopper 61 disposed within the backrest 220 and protruding outward from the backrest 220. The backrest frame 22 is provided with a plurality of adjustment holes 62 into which the elastic stopper 61 engages. By adjusting the elastic stopper 61 to engage with the adjustment holes 62 at different positions, the height of the backrest 220 can be adjusted. The linked foldable child chair of the present invention also has a height adjustment function on the backrest. The elastic stopper cooperates with different adjustment holes on the backrest frame to enable the backrest height to be adjusted in multiple levels. Furthermore, the structure of sliding adjustment and elastic stopper is adopted. The user only needs to pull the backrest to move it relative to the backrest frame. When the elastic stopper moves to the point where it is aligned with the adjustment hole, the elastic stopper engages with the corresponding adjustment hole under the action of elasticity, thereby completing the height adjustment. The adjustment operation is easy and the structure is simple, and the backrest and the backrest frame can be relatively fixed without a separate unlocking structure.

[0052] In addition, the end of the elastic stopper 61 extending outward from the backrest 220 is a spherical surface or a steel ball. The spherical structure allows the elastic stopper 61 to be disengaged from the original adjustment hole by pulling the backrest hard when adjustment is required, so that the backrest can be moved to adjust the height.

[0053] Specifically, a return spring is provided between the inner side of the elastic limiting member 61 and the backrest 220 .

[0054] The present invention provides a linked folding child chair for a baby stroller, wherein the child chair portion has a two-stage folding function. The backrest frame can be rotated toward the seat frame for folding, and the seat frame can be rotated relative to the baby stroller for folding twice, so that the overall space of the baby stroller after folding is smaller, making it easier to store. After the locking assembly is unlocked using the unlocking device on the backrest frame, the backrest frame can be folded toward the seat frame, unlocking the seat locking assembly between the seat frame and the frame, thereby folding the seat together during the folding of the backrest. The linked unlocking and folding method makes operation easier. In addition, combined with the foldable form of the frame itself, the baby stroller of this solution can be folded and retracted to the maximum extent.

[0055] The above descriptions are provided in conjunction with specific content to provide one or more embodiments, and the specific implementation of the present invention is not limited to these descriptions. Any similarity or similarity with the methods, structures, etc. of the present invention, or any technical deduction or replacement based on the concept of the present invention shall be considered within the scope of protection of the present invention.

Claims

1. A foldable baby chair for a baby carriage, characterized in that: The invention comprises a seat body (2), wherein the seat body (2) comprises a seat frame (21) and a backrest frame (22) hinged to the seat frame (21), and a locking assembly for limiting the rotation of the backrest frame (22) relative to the seat frame (21) is provided at a hinged portion between the seat frame (21) and the backrest frame (22), and a seat locking assembly for limiting the rotation of the seat frame (21) relative to the baby carriage is provided between the seat frame (21) and the baby carriage, and an unlocking device (8) for unlocking the locking assembly is provided on the backrest frame (22), and after the locking assembly is unlocked, the backrest frame (22) can be rotated and folded in the direction of the seat frame (21), and when the backrest frame (22) rotates relative to the seat frame (21), the seat locking assembly can be unlocked, so that the seat body (2) can be rotated and folded relative to the baby carriage; A back frame hinge (221) is provided at the lower end of the back frame (22), and a seat frame hinge (211) that cooperates with the back frame hinge (221) is provided on the seat frame (21); The locking assembly comprises a first locking member (31) disposed between the back frame hinge (221) and the seat frame hinge (211) and connected to the seat frame hinge (211); The first locking member (31) is further provided with a sliding locking member (32), and the seat frame hinge (211) is further provided with a second locking member (33) extending out of the seat frame hinge (211) and locked with the stroller. The lower end of the sliding locking member (32) has a contact arm (321) extending above the second locking member (33), and a protrusion (2211) is provided on the inner side of the backrest frame hinge (221). When the backrest frame (22) rotates relative to the seat frame (21), the protrusion (2211) presses the sliding locking member (32), so that the sliding locking member (32) and the second locking member (33) move downward, and the seat body (2) can be rotated and folded relative to the stroller.

2. The linkage foldable child chair used in a baby carriage according to claim 1, characterized in that: An armrest (23) is further provided between the backrest frame (22) and the seat frame (21). When the backrest frame (22) rotates relative to the seat frame (21), the armrest (23) can be unlocked, so that the armrest (23) can be rotated relative to the seat frame (21) and folded together.

3. The linked foldable child chair for a baby carriage according to claim 2, characterized in that: The lower end of the armrest (23) is also provided with an armrest hinge (231) located between the back frame hinge (221) and the seat frame hinge (211), and the unlocking device (8) includes a locking pin (81) provided on the backrest frame (22) and extending into the seat frame hinge (211) to cooperate with the first locking member (31), an unlocking button provided on the backrest frame (22) and capable of pulling the locking pin (81) to move, and a connecting rope provided between the unlocking button and the locking pin (81). The locking pin (81) can be pulled toward the backrest frame (22) by pressing the unlock button, so that it is disengaged from the first locking member (31), thereby allowing the backrest frame (22) to rotate relative to the seat frame (21); a peripheral wall of the first locking member (31) is provided with a plurality of adjustment slots (301) for the locking pin (81) to be engaged, and the locking pin (81) can be disengaged from the unlock button and inserted into other adjustment slots (301) to adjust the angle between the backrest frame (22) and the seat frame (21).

4. The linkage foldable child chair for a baby carriage according to claim 1, characterized in that: The upper end of the sliding locking member (32) is a tapered head (322) with lower sides and a higher middle, and a return spring is provided between the sliding locking member (32) and the first locking member (31).

5. The linked foldable child chair for a baby carriage according to claim 3, characterized in that: A latching protrusion (323) extending toward the armrest hinge (231) is provided on one side of the upper end of the sliding latching member (32), and a latching notch (2311) for the latching protrusion (323) to be latched into is provided on the inner peripheral wall of the armrest hinge (231). When the latching protrusion (323) moves downward with the sliding latching member (32), it disengages from the latching notch (2311), and the armrest (23) can be rotated and folded relative to the seat frame (21).

6. The linked foldable child chair for a baby carriage according to claim 5, characterized in that: A rotating seat (41) connected to the baby carriage is further provided on the outside of the seat frame hinge (211); one end of the second locking member (33) is located in the rotating seat (41), and the other end passes through the rotating seat (41) and extends into the seat frame hinge (211).

7. The linked foldable child chair for a baby carriage according to claim 6, characterized in that: The rotating seat (41) is provided with a cavity (410) at one end opposite to the baby carriage, and the baby carriage is provided with a matching protrusion (42) extending into the cavity (410), and a notch is provided at the lower end of the matching protrusion (42) for the second locking member (33) to be locked in.

8. The linked foldable child chair for a baby carriage according to claim 7, characterized in that: An outwardly protruding limiting block (421) is provided on the peripheral surface of the mating protrusion (42), and a limiting step (411) is provided on the inner wall of the cavity (410).

9. The linked foldable child chair for a baby carriage according to claim 6, characterized in that: The seat body (2) can be detachably mounted on the baby carriage, and a disassembly locking assembly is further provided between the seat frame (21) and the baby carriage, the disassembly locking assembly comprising an embedding block (51) provided on the side of the rotating seat (41) relative to the seat frame hinge (211), and a slide groove (52) provided on the outside of the seat frame hinge (211) for the embedding block (51) to be inserted into. The rotating seat (41) is provided with a locking member (53) extending from the embedding block (51) to the slide groove (52), the slide groove (52) is provided with a lock hole (54) for the locking member (53) to extend into, and the seat frame hinge (211) is further provided with a button (55) extending into the slide groove (52). By pressing the button (55), the locking member (53) can be disengaged from the lock hole, and the slide groove (52) can move relative to the embedding block (51) to separate the seat from the rotating seat or the frame.

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