CN215622223U - Safety baby carriage seat pocket - Google Patents

Abstract

The utility model discloses a safety baby carriage seat pocket, which comprises a backrest group, a seat plate group, a handrail group and the like, and is mainly characterized in that a seat plate lock is additionally arranged on the seat plate group, when a baby sits on the seat plate group and locks the seat plate lock, even if the backrest lock is half-unlocked or full-unlocked, the backrest lock can only be controlled to perform backrest angle adjustment rotation relative to the seat plate group, and the backrest group cannot rotate backwards relative to the seat plate group and is completely folded; when the baby leaves the seat board group to unlock the seat board lock, the semi-unlocking of the backrest lock controls the backrest group to rotate relative to the seat board group for backrest angle adjustment, and the full unlocking of the backrest lock can control the backrest group to rotate backwards and be folded completely relative to the seat board group, so that the use safety of the seat bag can be ensured. Simultaneously, the back group is rotated backward relative seat board group and is folded completely, also can unblock the handrail lock in step and drive handrail group and rotate and fold on the seat board group, and the user need not to go folding handrail group through extra action this moment, can reach the effect that a key just can fold whole seat pocket, so greatly promote the convenience of operation.

Description

Safety baby carriage seat pocket

Technical Field

The utility model relates to a baby carriage seat pocket, in particular to a safety baby carriage seat pocket.

Background

At present, most of seat pockets of baby carriages in the market are designed to be folded on a seat plate group by forward rotation of a backrest group, and babies cannot be seated on the seat pockets necessarily during folding. But some perambulator because spatial structure limits, preceding folding seat pocket can't be realized, can only adopt the relative seat board group of back group to rotate backward folding to this guarantees that whole car accomodates the volume less, if the baby still sits on the seat pocket, in case parents or other people maloperation and folding back group rotate backward, will lead to the baby to fall out from the seat pocket is interior unexpected, so has very big use safety hidden danger.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a safe baby carriage seat pocket which can automatically limit a backrest group to be completely folded backwards relative to a seat plate group when a baby sits on the seat pocket and is safer to use.

The technical problem of the utility model is realized by the following technical scheme:

a safe baby carriage seat pocket comprises a backrest group, a seat plate group and a handrail group, wherein the lower end of the backrest group is coaxially and rotatably connected with the rear end of the seat plate group through a large joint, and the lower end of the handrail group is rotatably connected with the front end of the seat plate group through a small joint; the backrest group is internally provided with two locks, the backrest locks are arranged in the backrest group and the large joint, the backrest locks control the rotation and folding of the backrest group relative to the seat plate group, and the two locks control the half unlocking or the full unlocking of the backrest locks; the inside of the big joint and the inside of the small joint are provided with armrest locks which control the rotation and folding of the armrest group relative to the seat plate group. The seat board group is provided with a seat board lock; when the seat plate lock is locked, the half unlocking or the full unlocking of the backrest lock can only control the backrest group to perform backrest angle adjustment rotation relative to the seat plate; when the seat plate lock is unlocked, the half unlocking of the backrest lock controls the backrest group to rotate relative to the seat plate group for backrest angle adjustment, the full unlocking of the backrest lock controls the backrest group to rotate backwards relative to the seat plate group for complete folding, and then the armrest lock is unlocked to drive the armrest group to rotate synchronously and fold on the seat plate group.

The seat plate lock comprises a safety cushion plate arranged on a seat plate group, the front end of the safety cushion plate is hinged on the seat plate group, the rear end of the safety cushion plate is elastically pushed to be upwarped, the rear end of the safety cushion plate is upwarped to unlock the seat plate lock, and the rear end of the safety cushion plate is pressed downwards to lock the seat plate lock; the seat plate lock is locked, and the rear end of the safety backing plate is pressed down to be tightly attached to the seat plate group so as to limit the backward rotation stroke of the backrest group relative to the seat plate group; the seat plate lock is unlocked, the rear end of the safety backing plate tilts upwards, and the limit of the backward rotation stroke of the corresponding backrest group relative to the seat plate group is removed.

The large joint comprises a rotary table arranged at the lower end of the backrest group and a rotary table arranged at the rear end of the seat group, and the rotary table are coaxially and rotatably connected; the small joint comprises a rotating shaft arranged at the lower end of the handrail group and a rotating groove arranged at the front end of the seat plate group, and the rotating shaft is assembled in the rotating groove and is connected with the rotating groove in a coaxial rotating mode.

The two locks are horizontally movably arranged in a chute at the top of the backrest group, two ends of the two locks are respectively provided with two lock springs for elastic pushing, and the two locks are centered in the chute through the two lock springs at the two ends; the two locks are locked in the middle in the sliding groove, and the corresponding backrest lock is half unlocked; the two locks horizontally move to any side and deviate from the middle of the sliding groove to be unlocked, and the corresponding backrest lock is fully unlocked.

The backrest lock comprises a rotary wrench, a lock pin pull rope and a seat insert, wherein the rotary wrench is arranged at the top of the backrest group and positioned below the second lock, the lock pin is arranged at the bottom of the backrest group and elastically pushed to move downwards, the lock pin pull rope is arranged in the backrest group and is respectively connected with the rotary wrench and the lock pin, and the seat insert is arranged in the turntable and is provided with an arc-shaped outer peripheral surface and a backrest angle adjusting groove arranged on the outer peripheral surface; the backrest lock is locked, and the lock pin is elastically pushed to move downwards to be assembled in the backrest angle adjusting groove so as to lock the backrest group to rotate and fold relative to the seat plate group; the backrest lock is half unlocked, and the lock pin is freely and selectively assembled in the backrest angle adjusting groove so as to control the backrest group to rotate relative to the backrest angle adjustment of the seat plate group; the backrest lock is unlocked completely, the lock pin is completely separated from the backrest angle adjusting groove, and then the backrest group is controlled to rotate backwards relative to the seat plate group to be folded completely.

The backrest angle adjusting groove is composed of a plurality of short grooves which are connected in parallel at the middle part and high grooves which are respectively arranged at the two sides of the short grooves; the lock pin is pushed by elasticity to move downwards and is assembled in any short groove or high groove, and further the backrest group is locked to rotate and fold relative to the seat plate group; the lock pin is pushed by elasticity to move downwards to selectively assemble any one of the short grooves or the high grooves, so that the backrest angle of the backrest group relative to the seat plate group is controlled to adjust and rotate; the lock pin passes through the high groove at the rear side and is completely separated from the backrest angle adjusting groove, so that the backrest group is controlled to rotate backwards relative to the seat plate group and is completely folded.

The two locks are locked, the upward wrenching stroke of the rotary wrench is limited by the two locks to be half unlocked, the corresponding lock pin cannot be separated from the backrest angle adjusting groove, and the backrest group performs backrest angle adjusting rotation relative to the seat plate group; the two locks are unlocked, the upward wrenching stroke of the rotary wrench is separated from the limitation of the two locks to be unlocked completely, the corresponding lock pin is completely separated from the backrest angle adjusting groove, and the backrest group rotates backwards relative to the seat plate group and is folded completely.

The handrail lock comprises a lock groove arranged on the rotating shaft, a lock column which is arranged in the seat plate group and elastically pushes the lock column to move forwards, a driving block which is fixed on the rotary table and assembled in the rotary table, a handrail sliding block arranged in the rotary table, and a lock column pull rope which is arranged in the seat plate group and respectively connected with the lock column and the handrail sliding block, wherein the handrail sliding block is pushed by the elasticity of a sliding block spring to be close to the driving block; the armrest lock is locked, the lock column is pushed by elasticity to move forwards and is assembled in the lock groove, and further the armrest group is locked to rotate and fold relative to the seat plate group; the backrest group rotates backwards relative to the seat plate group and is completely folded, the driving block is driven to push the handrail sliding block to move, the lock column is pulled by the lock column pull rope to be separated from the lock groove, and then the rotary folding of the handrail group relative to the seat plate group is unlocked.

The rotary groove is internally provided with a return spring which elastically pushes the rotary shaft to rotate backwards, the backrest group rotates backwards relative to the seat board group and is completely folded, so that the armrest group is unlocked to rotate and fold relative to the seat board group, and the return spring elastically pushes the armrest group to automatically rotate and fold on the seat board group.

The rotary groove is internally provided with a lug, the rotary shaft is internally provided with an arc-shaped spring groove taking the axis of the rotary shaft as the center of a circle, the upper end of the return spring is arranged in the spring groove in a pushing manner, the lower end of the return spring is arranged on the lug in a pushing manner and drives the handrail group to form a trend of rotating and folding backwards under the elastic pushing manner.

Compared with the prior art, the seat plate lock is mainly additionally arranged on the seat plate group, when the seat plate lock is locked, namely when an infant sits on the seat plate group and locks the seat plate lock, even if the backrest lock can be half unlocked or full unlocked, the backrest lock can only control the backrest group to rotate relative to the seat plate group for backrest angle adjustment, and cannot enable the backrest group to rotate backwards relative to the seat plate group and be completely folded; when the seat plate lock is unlocked, namely when the baby leaves the seat plate group to unlock the seat plate lock, the half unlocking of the backrest lock is mainly used for controlling the backrest group to rotate relative to the seat plate group for backrest angle adjustment, and the full unlocking of the backrest lock can be used for controlling the backrest group to rotate backwards and be completely folded relative to the seat plate group; obviously, as long as the infant sits on the seat board set, the seat board lock can be automatically locked, and conversely, the seat board lock can be unlocked, so that the use safety of the seat bag can be ensured. Simultaneously, the relative seat board group of back group rotates backward and is folded completely, also can unblock the handrail lock in step and drive handrail group and rotate and fold on the seat board group, and the user just need not to go folding handrail group through extra action this moment to reach the effect that a key just can fold whole seat pocket, greatly promoted the convenience of operation.

Drawings

Fig. 1 is a front perspective view of the present invention.

Fig. 2 is a rear perspective view of the present invention.

Fig. 3 is an exploded perspective view of fig. 1.

Fig. 4 is a schematic structural view showing the two-way lock and the backrest lock locked.

Fig. 5 is an enlarged view of the structure of fig. 4 in which the two-way lock is locked.

Fig. 6 is an enlarged view of fig. 4 at a.

Fig. 7 is an enlarged view of fig. 4 at B.

Fig. 8 is a schematic diagram of the two-way lock being locked and the back lock being semi-unlocked.

Fig. 9 is an enlarged view of fig. 8 at C.

Fig. 10 is an enlarged view of fig. 8 at D.

Fig. 11 is a schematic structural view of the two-way lock being unlocked and the backrest lock being fully unlocked.

Fig. 12 is an enlarged view of the structure of fig. 11 in which the secondary lock is unlocked.

Fig. 13 is an enlarged view of fig. 11 at E.

Fig. 14 is an enlarged view of fig. 11 at F.

Fig. 15 is a schematic structural view of the rotating shaft.

Fig. 16 is a cross-sectional view of a seat insert.

Fig. 17 is a schematic view of the structure in which the two-way lock, the back lock and the armrest lock are locked.

Fig. 18 is a cross-sectional view of the seat back set being folded back relative to the seat plate set with the secondary lock unlocked and the back lock fully unlocked.

Fig. 19 is a cross-sectional view of the back group of fig. 18 folded against the seat pan group continuing to rotate rearward and ready to unlock the armrest locks.

Fig. 20 is a cross-sectional view of the armrest lock of fig. 19 unlocked and the armrest set ready for rotational folding relative to the seat set.

Fig. 21 is a cross-sectional view of the armrest lock being unlocked and the armrest set beginning to swivel and fold relative to the seat set.

Fig. 22 is a sectional view of the seat pocket fully folded.

Fig. 23 is a sectional view of the seat plate lock in a normally unlocked state with the rearward rotational stroke of the group of backs relative to the group of seat plates being released from the limitation.

Fig. 24 is a sectional view showing a locked state of the seat plate lock.

Fig. 25 is a cross-sectional view of the seat pan lock being locked and the rearward rotational travel of the back group relative to the seat pan group being limited.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the above drawings.

As shown in fig. 1 to 25, 11 parts of a backrest group, 111 parts of a sliding groove, 12 parts of a seat plate group, 13 parts of an armrest group, 14 parts of a pedal group, 15 parts of a side cover, 2 parts of a large joint, 21 parts of a rotating table, 22 parts of a rotating disc, 3 parts of a small joint, 31 parts of a rotating shaft, 311 parts of a locking groove, 312 parts of a spring groove, 32 parts of a rotating groove, 321 parts of a lug, 33 parts of a return spring, 4 parts of a backrest lock, 41 parts of a rotating wrench, 42 parts of a locking pin, 43 parts of a locking pin pulling rope, 44 parts of a seat insert, 441 parts of a backrest angle adjusting groove, 442 parts of a driving groove, 443 parts of a high groove, 444 parts of a low groove, 45 parts of a locking pin spring, 46 parts of a wrench shaft, 5 parts of a seat plate lock, 51 parts of a safety backing plate, 52 parts of a backing plate spring, 53 parts of a backing plate shaft, 6 parts of a secondary lock, 61 parts of a secondary lock spring, 7 parts of an armrest lock, 71 parts of a sliding block, 72 parts of a locking column, 73 parts of a column pulling rope, 74 parts of a sliding block spring, 75 parts of a column spring, and a driving block.

A safety baby carriage seat pocket is mainly composed of a backrest group 11, a seat plate group 12, an armrest group 13, a pedal group 14 and the like, wherein the lower end of the backrest group 11 and the rear end of the seat plate group 12 are coaxially and rotatably connected through a large joint 2, the lower end of the armrest group 13 is rotatably connected above the front end of the seat plate group 11 through a small joint 3, and the rear end of the pedal group 14 is also rotatably connected below the front end of the seat plate group 12.

The large joint 2 comprises a rotary table 21 arranged on the inner end face of the lower end of the backrest group 11 and a rotary table 22 arranged on the outer end face of the rear end of the seat group 12, the rotary table 21 and the rotary table 22 are both circular parts, and the rotary table 21 and the rotary table 22 can rotate coaxially after being mutually buckled and connected through a pin penetrating through the circle center.

The said small joint 3 includes the rotating shaft 31 set on the outer end face of the lower end of the armrest group 13 and the rotating groove 32 set on the inner end face of the front end of the seat group 12, the rotating shaft 31 and the rotating groove 32 are also designed into a circle, so the rotating shaft 31 is assembled in the rotating groove 32 and then is connected with the rotating shaft coaxially through a pin set at the center of the circle.

The backrest group 11 is internally provided with two locks 6, the backrest group and the large joint 2 are internally provided with backrest locks 4, the backrest locks can control the backrest group 11 to rotate and fold relative to the seat plate group 12, and the two locks 6 can control the backrest locks 4 to be unlocked in a half mode or unlocked in a full mode.

The second lock 6 is horizontally movably installed in a sliding groove 111 at the top of the backrest group 11, two ends of the second lock 6 are respectively provided with a second lock spring 61 for elastic pushing, and the second lock 6 is just centered in the sliding groove 111 through the second lock springs at the two ends; thus, when the second lock 6 is centered in the sliding groove 111, the locking state is represented, and the corresponding backrest lock 4 is half-unlocked; when the two locks 6 horizontally move to any side and deviate from the middle of the sliding groove 111 to unlock, the corresponding backrest lock 4 is fully unlocked.

The backrest lock 4 includes a rotary wrench 41 disposed at the top of the backrest set 11 and below the secondary lock 6, a latch 42 disposed at the bottom of the backrest set 11 and elastically pushed by a latch spring 45 to move downward, a latch cord 43 disposed in the backrest set 11 and respectively connecting the rotary wrench 41 and the latch 42, and a seat insert 44 disposed in the rotary plate 22, wherein the latch spring 45 and the latch 42 can be enclosed by the side cover 15 for protection and aesthetic appearance.

In the embodiment, the seat insert 44 is fixed in the rotating disc 22, and the seat insert 44 can be directly formed in the rotating disc 22 in an integrated manner in actual production, but the fixed seat insert 44 adopted in the embodiment has two purposes, namely, the armrest group 13 can be fixed and the lock column pull rope 73 can be linked, and the seat insert 44 can be made of a better material to ensure the use strength.

The seat insert is a semicircular component, which has an arc-shaped outer peripheral surface, a backrest angle adjusting groove 441 is arranged on the outer peripheral surface, the backrest angle adjusting groove is composed of a plurality of short grooves 444 with the middle parts connected side by side and high grooves 443 respectively arranged at two sides of the short grooves, and the circle center of the seat insert 44 is just overlapped with the rotation axis of the large joint 2.

Therefore, when the backrest lock 4 is locked, the locking pin 42 is elastically urged by the locking pin spring 45 to move downward to fit into the backrest angle adjusting groove 441, i.e., fit into any one of the short grooves 444 or the high grooves 443, thereby locking the rotational folding of the backrest set 11 with respect to the seat plate set 12, i.e., the backrest set 11 is in a backrest angle locking use state with respect to the seat plate set 12.

When the two-way lock 6 is locked, the upward pulling stroke of the rotary wrench 41 around the wrench shaft 46 is limited by the two-way lock 6, so that the backrest lock 4 is half unlocked, and at this time, the lock pin 42 cannot be disengaged from the backrest angle adjusting groove 441, and the lock pin 42 can be freely and selectively assembled in the backrest angle adjusting groove 441, that is, the lock pin 42 is elastically pushed to move downwards to selectively assemble any one of the short groove 444 and the high groove 443, so as to control the backrest angle adjusting rotation of the backrest group 11 relative to the seat plate group 12.

When the second lock 6 is unlocked, the stroke of the rotary wrench 41 about the wrench shaft 46 being pulled upward is released from the limit of the second lock 6, so that the backrest lock 4 is unlocked completely, and the lock pin 42 can be completely released from the backrest angle adjusting groove 441 at this time, that is, the lock pin 42 can be completely released from the backrest angle adjusting groove 441 over the rear high groove 443, thereby controlling the backrest set 11 to rotate backward relative to the seat plate set 12 to be folded completely.

The seat plate group 12 is provided with a seat plate lock 5, the structure of the seat plate lock comprises a safety cushion plate 51 arranged on the seat plate group 12, the front end of the safety cushion plate is hinged on the seat plate group 12 through a cushion plate shaft 53, the rear end of the safety cushion plate is elastically pushed and upwarped by a pair of cushion plate springs 52, the cushion plate springs 52 can also be replaced by other elastic parts such as torsion springs, the number of the cushion plate springs is not limited, the cushion plate springs can be selected to be more, the rear end of the safety cushion plate 51 is upwarped to be unlocked for the seat plate lock 5, and the rear end of the safety cushion plate 51 is pressed downwards to be locked for the seat plate lock 5.

Thus, when the seat plate lock 5 is locked, that is, when the seat plate lock 5 is locked by an infant sitting on the seat plate group 12 and pressing the rear end of the safety mat 51 down against the seat plate group 12, the rearward rotational stroke of the backrest group 11 with respect to the seat plate group 12 is limited; at this time, no matter the backrest lock 4 is in the half-unlocked state or the full-unlocked state, the backrest group 11 can only be controlled to rotate relative to the seat plate group 12 for backrest angle adjustment, and the backrest group 11 cannot rotate backwards relative to the seat plate group 12 for full folding.

When the seat plate lock 5 is unlocked, that is, when the child leaves the seat plate group 12 and the rear end of the safety cushion plate 51 is automatically tilted up and reset to unlock the seat plate lock 5, the limit of the backward rotation stroke of the backrest group 11 relative to the seat plate group 12 is released; the half-unlocked state of the backrest lock 4 is mainly used for controlling the backrest angle adjusting rotation of the backrest group 11 relative to the seat plate group 12, while the full-unlocked state of the backrest lock 4 is only used for controlling the backward rotation of the backrest group 11 relative to the seat plate group 12 to be fully folded.

Obviously, as long as the infant sits on the seat plate set 12, the seat plate lock is automatically locked, and conversely, the seat plate lock is unlocked, so that the safety of the seat pocket in use can be ensured.

The armrest locks 7 are arranged in the large joints 2 and the small joints 3 and control the armrest group 13 to rotate and fold relative to the seat plate group 12.

The armrest lock 7 comprises a lock groove 311 arranged on the outer circumferential surface of the rotating shaft 31, a lock column 72 which is arranged in the seat plate group 12 and is elastically pushed by a lock column spring 75 to move forwards, a driving block 76 which is fixed on the inner end surface of the rotary table 21 and is assembled in the rotary table 22, an armrest slide block 71 arranged in the rotary table 22, and a lock column pull rope 73 which is arranged in the seat plate group 12 and is respectively connected with the lock column 72 and the armrest slide block 71; the driving block 76 and the armrest slide block 71 are both arc-shaped blocks, and the seat insert 44, the driving block 76 and the armrest slide block 71 are arranged in the rotating disc 22 in a clockwise sequence.

The driving block 76 is driven by the turntable 21 to rotate, and simultaneously can rotate circularly in the turntable 22 around the rotating axis of the large joint 2, and then can push the handrail sliding block 71, and drive the handrail sliding block to rotate circularly in the turntable 22 around the rotating axis of the large joint 2; the armrest slide block 71 is further provided with a slide block spring 74 for elastically pushing to be close to the driving block 76, the seat pocket is in a normal use state in a normal state, such as a sitting posture, a half lying state, a flat lying state and the like, the slide block spring 74 pushes the armrest slide block 71 to be in contact with the seat insert 44, the driving block 76 is located in the driving groove 442 of the seat insert 44 at the moment, as long as the backrest group 11 rotates and is completely folded, the driving block 76 fixed on the rotary table 21 can be taken out from the driving groove 442, and the armrest slide block 71 is pushed to rotate against the slide block spring 74.

Meanwhile, when the armrest lock 7 is locked, the lock cylinder 72 will be pushed by the lock cylinder spring 75 to move forward and fit in the lock slot 311, and further lock the armrest set 13 to rotate and fold relative to the seat plate set 12, and when the backrest set 11 can rotate backward and fold completely relative to the seat plate set 12, the armrest lock 7 will be unlocked synchronously to make the armrest set 13 rotate and fold on the seat plate set 12, specifically: when the backrest group 11 is rotated backwards relative to the seat plate group 12 and completely folded, the driving block 76 is driven to push the armrest slide block 71 to move, and then the lock cylinder 72 is pulled by the lock cylinder pull rope 73 to be separated from the lock groove 311, so that the rotary folding of the armrest group 13 relative to the seat plate group 12 can be unlocked.

In addition, a return spring 33 which elastically pushes the rotating shaft to rotate backwards is arranged in the rotating groove 32, and the specific structure is as follows: a lug 321 is arranged in the rotary groove, an arc-shaped spring groove 312 is arranged in the rotary shaft 31 by taking the axis of the rotary shaft as the center of a circle, the upper end of the return spring 33 is arranged in the spring groove 312 in a pushing manner, the lower end of the return spring 33 is arranged on the lug 321 in a pushing manner, and the handrail group 13 is driven to form a tendency of rotating and folding backwards by the elastic pushing of the return spring 33; therefore, when the backrest set 11 is rotated backward relative to the seat set 12 to be folded completely and the armrest lock 7 is unlocked, the return spring 33 will elastically push the armrest set 13 to be automatically rotated and folded on the seat set 12. At this moment, the user does not need to fold the armrest group 13 through extra actions, so that the effect that the whole seat pocket can be folded by one key is achieved, and convenience in operation is greatly improved.

Of course, the return spring 33 may be replaced by other elastic members such as a torsion spring, as long as the working requirements are met.

The above description is only a specific embodiment of the present invention, and those skilled in the art should understand that any similar structural design to the embodiment is included in the protection scope of the present invention.

Claims (10)

1. A safe baby carriage seat pocket comprises a backrest group (11), a seat plate group (12) and a handrail group (13), wherein the lower end of the backrest group (11) is coaxially and rotatably connected with the rear end of the seat plate group (12) through a large joint (2), and the lower end of the handrail group (13) is rotatably connected with the front end of the seat plate group (12) through a small joint (3); the backrest lock is characterized in that a second lock (6) is arranged in the backrest group (11), the backrest lock (4) is arranged in the backrest group (11) and in the large joint (2), the backrest lock controls the backrest group (11) to rotate and fold relative to the seat plate group (12), and the second lock (6) controls the backrest lock (4) to be unlocked in a half mode or unlocked in a full mode; the armrest locks (7) are arranged in the large joint (2) and the small joint (3) and control the armrest group (13) to rotate and fold relative to the seat plate group (12), and the armrest is characterized in that the seat plate group (12) is provided with a seat plate lock (5); when the seat plate lock is locked, the half unlocking or the full unlocking of the backrest lock (4) can only control the backrest group (11) to do backrest angle adjustment rotation relative to the seat plate group (12); when the seat plate lock (5) is unlocked, the half-unlocking of the backrest lock (4) controls the backrest group (11) to rotate relative to the seat plate group (12) for backrest angle adjustment, the full-unlocking of the backrest lock (4) controls the backrest group (11) to rotate backwards relative to the seat plate group (12) for complete folding, and then the armrest lock (7) is unlocked to drive the armrest group (13) to rotate synchronously and be folded on the seat plate group (12).

2. The safety baby carriage seat pocket according to claim 1, characterized in that the seat lock (5) comprises a safety pad (51) installed on the seat set (12), the front end of the safety pad is hinged on the seat set (12), the rear end of the safety pad is elastically pushed and lifted upwards, the rear end of the safety pad (51) is lifted upwards to unlock the seat lock (5), and the rear end of the safety pad (51) is pressed downwards to lock the seat lock (5); the seat plate lock (5) is locked, and the rear end of the safety cushion plate (51) presses the seat plate group (12) to limit the backward rotation stroke of the backrest group (11) relative to the seat plate group (12); the seat plate lock (5) is unlocked, the rear end of the safety cushion plate (51) tilts upwards, and the limit of the backward rotation stroke of the corresponding backrest group (11) relative to the seat plate group (12) is removed.

3. A safety baby carrier seat pocket according to claim 1, characterized in that the large joint (2) comprises a turntable (21) arranged at the lower end of the backrest group (11) and a turntable (22) arranged at the rear end of the seat group (12), the turntable (21) and the turntable (22) are coaxially and rotatably connected; the small joint (3) comprises a rotating shaft (31) arranged at the lower end of the handrail group (13) and a rotating groove (32) arranged at the front end of the seat plate group (12), and the rotating shaft is assembled in the rotating groove and is connected with the rotating groove in a coaxial rotating mode.

4. The safety baby carriage seat pocket according to claim 1, characterized in that the two locks (6) are horizontally movably installed in a chute (111) at the top of the backrest group (11), two ends of the two locks (6) are respectively provided with two elastically pushing lock springs (61), and the two locks are centered in the chute (111) through the two lock springs (61) at the two ends; the secondary lock (6) is centered in the sliding groove (111) to be locked, and the corresponding backrest lock (4) is half-unlocked; the two locks (6) horizontally move to any side and deviate from the middle of the sliding groove (111) to be unlocked, and the corresponding backrest lock (4) is fully unlocked.

5. A safety baby carriage seat pocket according to claim 3 characterized in that the backrest lock (4) comprises a rotary wrench (41) arranged on the top of the backrest group (11) and located below the secondary lock (6), a lock pin (42) arranged on the bottom of the backrest group (11) and elastically pushing the lock pin to move downwards, a lock pin pull rope (43) arranged in the backrest group (11) and respectively connecting the rotary wrench (41) and the lock pin (42), and a seat insert (44) fixed in the turntable (22) and having a circular arc outer peripheral surface and a backrest angle adjusting groove (441) arranged on the outer peripheral surface; the backrest lock (4) is locked, the lock pin (42) is pushed by elasticity to move downwards to be assembled in the backrest angle adjusting groove (441), and then the backrest group (11) is locked to rotate and fold relative to the seat plate group (12); the backrest lock (4) is half unlocked, the lock pin (42) is freely and selectively assembled in the backrest angle adjusting groove (441), and then the backrest group (11) is controlled to rotate relative to the backrest angle adjustment of the seat plate group (12); the backrest lock (4) is unlocked completely, the lock pin (42) is completely separated from the backrest angle adjusting groove (441), and the backrest group (11) is controlled to rotate backwards relative to the seat plate group (12) to be folded completely.

6. A safety seat pocket for a stroller according to claim 5, wherein the backrest angle adjusting groove (441) is formed by a plurality of short grooves (444) connected side by side at the middle part and high grooves (443) respectively formed at both sides of the plurality of short grooves; the lock pin (42) is pushed by elasticity to move downwards to be assembled in any one of the short groove (444) or the high groove (443), and then the rotary folding of the backrest group (11) relative to the seat plate group (12) is locked; the lock pin (42) is pushed by elasticity to move downwards to be selectively assembled with any one of the short groove (444) or the high groove (443), and further the backrest angle adjusting rotation of the backrest group (11) relative to the seat plate group (12) is controlled; the lock pin (42) completely breaks away from the backrest angle adjusting groove (441) after passing through the high groove (443) at the rear side, and then the backrest group (11) is controlled to rotate backwards relative to the seat plate group (12) to be completely folded.

7. A safety baby carrier seat pocket according to claim 5, characterized in that the two locks (6) are locked, the upward pulling stroke of the rotary wrench (41) is limited by the two locks (6) and is half unlocked, the corresponding lock pin (42) cannot be disengaged from the backrest angle adjusting groove (441), and the backrest group (11) performs backrest angle adjusting rotation relative to the seat plate group (12); the two locks (6) are unlocked, the upward pulling stroke of the rotary wrench (41) is separated from the limitation of the two locks (6) to be unlocked completely, the corresponding lock pin (42) is completely separated from the backrest angle adjusting groove (441), and the backrest group (11) rotates backwards relative to the seat plate group (12) to be folded completely.

8. The safety baby carriage seat pocket according to claim 3, characterized in that the armrest lock (7) comprises a lock groove (311) arranged on the rotating shaft (31), a lock post (72) arranged in the seat plate group (12) and elastically pushing the lock post to move forward, a driving block (76) fixed on the turntable (21) and assembled in the turntable (22), an armrest slider (71) arranged in the turntable (22), and a lock post pull rope (73) arranged in the seat plate group (12) and respectively connecting the lock post (72) and the armrest slider (71), wherein the armrest slider (71) is elastically pushed by a slider spring (74) to approach the driving block (76); the armrest lock (7) is locked, the lock column (72) is pushed by elasticity to move forwards and is assembled in the lock groove (311), and further the armrest group (13) is locked to rotate and fold relative to the seat plate group (12); the backrest group (11) rotates backwards relative to the seat plate group (12) and is completely folded, the driving block (76) is driven to push the handrail sliding block (71) to move, the lock column (72) is pulled by the lock column pull rope (73) to be separated from the lock groove (311), and then the rotary folding of the handrail group (13) relative to the seat plate group (12) is unlocked.

9. The safety baby carriage seat pocket according to claim 8, wherein a return spring (33) elastically pushing the rotating shaft (21) to rotate backwards is arranged in the rotating groove (22), the backrest group (11) rotates backwards relative to the seat plate group (12) to be folded completely, so that the armrest group (13) is unlocked to be folded in a rotating manner relative to the seat plate group (12), and the return spring (33) elastically pushes the armrest group (13) to be folded on the seat plate group (12) in a rotating manner automatically.

10. The safety baby stroller seat pocket according to claim 9, wherein a protrusion (321) is disposed in the rotary groove (32), an arc-shaped spring groove (312) is disposed in the rotary shaft (31) with the axis of the rotary shaft as the center of the circle, the upper end of the return spring (33) is installed in the spring groove (312) in a pushing manner, the lower end of the return spring (33) is installed on the protrusion (321) in a pushing manner, and the elastic pushing force drives the armrest assembly (13) to rotate backwards and fold.

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