CN216359980U - Backrest folding linkage unlocking pedal folding baby carriage seat pocket - Google Patents

Abstract

The utility model discloses a baby carriage seat pocket with a foldable backrest, linked unlocking and pedal folding, which comprises a bottom plate, a backrest, pedals, a pedal lock, a backrest lock and the like, wherein the pedal lock is controlled by an adjusting button to be half-unlocked to drive the pedals to form rotation adjustment of a use angle relative to a seat plate, the upper end of the backrest is provided with two lock knobs to control the wrenching stroke of a wrench, when the wrench is wrenched upwards for a small stroke, the half-unlocking of the backrest lock can be controlled, the backrest is further driven to form rotation adjustment of the use angle relative to the seat plate, when the wrench is wrenched upwards for a large stroke, the backrest lock can be controlled to be fully unlocked, the backrest is further driven to be fully folded relative to the seat plate, and then the pedal lock is synchronously controlled to be fully unlocked, so that the pedals are driven to be fully folded relative to the seat plate in a linked manner. Obviously, the half unlocking and the full unlocking of the backrest lock are controlled by different wrenching strokes of the wrench, the use safety of backrest adjustment and folding is effectively guaranteed, and great convenience is brought to the operation of consumers due to linkage unlocking and pedal folding.

Description

Backrest folding linkage unlocking pedal folding baby carriage seat pocket

Technical Field

The utility model relates to a baby carriage seat pocket, in particular to a baby carriage seat pocket with a folding backrest, linkage unlocking and pedal folding functions.

Background

At present, most of seat pockets of baby carriages in the market are designed to be folded on a seat plate by forward rotation of a backrest, and babies cannot sit on the seat pockets necessarily when the seat pockets are folded, so that the safety of folding use can be ensured. But some perambulator receive spatial structure restriction, can't realize folding forward of seat pocket, can only adopt the relative bedplate of back to rotate backward folding to it is less to guarantee the volume that whole car was accomodate to this, if the baby still sits on the seat pocket, in case parents or other people one-hand maloperation and folding back rotate backward, will lead to the baby to fall out from the seat pocket is unexpected, so has very big use potential safety hazard. Secondly, after the backrest of the seat bag is folded, the pedals are still not unlocked and folded, and one more action is usually needed to fold the pedals, which obviously brings certain inconvenience to the operation of consumers.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a baby carriage seat pocket which can ensure the folding safety of the seat pocket and can carry out linkage folding on a backrest and a pedal.

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

a baby carriage seat pocket with a foldable backrest, an interlocked unlocking pedal and a foldable pedal comprises a seat plate, a backrest and a pedal; a rotationally mounted front joint is arranged between the upper end of the pedal and the front end of the seat plate, and a pedal lock and an adjusting button are arranged in the front joint; a rear joint which is rotatably installed is arranged between the lower end of the backrest and the rear end of the seat board, a backrest lock is arranged in the rear joint, a wrench which is pulled upwards is arranged at the upper end of the backrest, the adjusting button controls the pedal lock to form half unlocking, and the half unlocking of the pedal lock drives the pedal to form rotation adjustment of the use angle relative to the seat board; the upper end of the backrest is provided with two locking knobs which control the upward wrenching stroke of the wrench; the spanner is limited by the two lock knobs to pull upwards for a small stroke to control the backrest lock to form semi-unlocking, and the semi-unlocking of the backrest lock drives the backrest to form rotation adjustment of a use angle relative to the seat plate; the wrench is limited by two lock knobs to pull upwards a large stroke to control the backrest lock to be fully unlocked, the full unlocking of the backrest lock drives the backrest to be fully folded relative to the seat board, the full folding of the backrest synchronously controls the pedal lock to be fully unlocked, and then the pedal is driven to be fully folded relative to the seat board in a linkage mode.

The front joint is formed by coaxially hinging an upper rotary disc at the upper end of the pedal and a front rotary disc at the front end of the seat plate; the rear joint is formed by coaxially hinging a lower turntable at the lower end of the backrest and a rear turntable at the rear end of the seat plate.

The pedal lock comprises a pedal gear arranged between the upper rotary disc and the front rotary disc, and the pedal gear is provided with stroke teeth; the inner end face of the upper rotating disc is provided with an upper tooth groove meshed with the pedal gear, and a stroke groove matched with the stroke teeth is arranged in the upper tooth groove; the outer end face of the front rotary disc is provided with a front tooth groove meshed with the pedal gear; the adjusting button is arranged on the outer end face of the upper turntable; under normal state, the pedal gear is pushed by elasticity and meshed in the upper tooth groove and the front tooth groove at the same time, and the rotation of the pedal relative to the seat board is locked; the adjusting button is pressed inwards to push the pedal gear to be separated from the upper tooth groove and keep the stroke teeth to be assembled in the stroke groove, and the pedal lock is half-unlocked.

The backrest lock comprises a backrest gear, a top tooth and a driving tooth which are coaxially arranged between the lower rotary table and the rear rotary table, the backrest gear is provided with a stroke tooth, a driving slope which is matched and assembled is arranged between the top tooth and the driving tooth, and a backrest pull rope which is mutually connected is arranged between the driving tooth and the wrench; the inner end face of the lower turntable is provided with a lower tooth groove which is engaged with the backrest gear, and a stroke groove which is matched with the stroke teeth is arranged in the lower tooth groove; the outer end face of the rear turntable is provided with a rear tooth groove meshed with the backrest gear; under normal state, the backrest gear is pushed by elasticity and meshed in the lower tooth groove and the rear tooth groove at the same time, and the rotation of the backrest relative to the seat board is locked; the spanner is upwards wrenched by a small stroke and drives the driving teeth to rotate through the backrest pull rope, the driving teeth push the top teeth to axially translate through the driving slope to push the backrest gear to be separated from the lower tooth groove, the stroke teeth are kept to be assembled in the stroke grooves, and the backrest lock is half-unlocked; the backrest lock is fully unlocked, and the backrest is fully folded relative to the seat plate.

The inner end surface of the lower turntable is provided with a central shaft extending along the axial lead, the backrest gear, the top tooth and the driving tooth are all sleeved on the central shaft, a sliding rib and a sliding groove which are mutually assembled and axially extend are respectively arranged between the top tooth and the central shaft, the rotation of the driving tooth pushes the top tooth through a driving slope, and the top tooth is converted into the axial translation of the top tooth through the assembly of the sliding rib and the sliding groove.

A linkage pressing block and a driving block which are arranged adjacent to the lower turntable are arranged on the outer end face of the rear turntable, and a linkage sliding block is arranged on one side of the pedal gear; the driving block and the linkage pressing block are in inclined surface fit contact, pedal pull ropes which are connected with each other are arranged between the driving block and the linkage sliding block, and the linkage sliding block and the pedal gear are in inclined surface fit contact; the backrest is completely folded relative to the seat board to extrude the linkage pressing block, the linkage pressing block pushes the driving block to translate through the inclined plane in anastomotic contact, the linkage sliding block pulls the linkage sliding block through the pedal pull rope, the linkage sliding block pushes the pedal gear to be completely separated from the upper tooth socket and the stroke tooth to be completely separated from the stroke groove through the inclined plane in anastomotic contact, the pedal lock is unlocked completely, and the pedal is driven to be completely folded relative to the seat board in a linkage mode.

The pedal gear is provided with a coaxially extending gear shaft, the gear shaft is provided with a long slot hole for the linkage sliding block to pass through, and the linkage sliding block and the hole wall of the long slot hole are in inclined surface fit contact.

The backrest lock is half unlocked, and the backrest forms rotation adjustment of a use angle relative to the seat plate without extruding a linkage pressing block; the backrest lock is fully unlocked, and the backrest is completely folded relative to the seat board to extrude the linkage pressing block.

And the linkage pressing block is provided with an extrusion slope for extruding the lower turntable.

The pedal gear or the backrest gear is provided with a plurality of short teeth, and the height of the stroke teeth is higher than that of the short teeth and is embedded between any two adjacent short teeth.

Compared with the prior art, the utility model mainly designs the pedal lock which controls the pedal to rotate relative to the seat board into the semi-unlocking controlled by the adjusting button, and drives the pedal to form the rotation adjustment of the use angle relative to the seat board by the semi-unlocking of the pedal lock, and the upper end of the backrest is provided with two locking knobs which control the upward wrenching stroke of the wrench; like this, when the spanner receives the restriction of two lock knobs to pull up when less stroke, can control the back lock and form half unblock, then the half unblock of back lock just can drive the relative bedplate of back and form the rotation regulation of use angle, when the spanner receives the restriction of two lock knobs to pull up when great stroke, can control the back lock and form full unblock, then the full unblock of back lock just can drive the relative bedplate of back and fold completely to by the full folding of this back and synchronous control the pedal lock and form full unblock again, thereby the linkage drives the relative bedplate of pedal also can fold completely. Obviously, the half unlocking and the full unlocking of the backrest lock are controlled by different wrenching strokes of the wrench, the safety of the backrest in the rotation adjustment of the use angle and the full folding operation is effectively ensured, and the pedal folding structure which is unlocked in a linkage manner by folding the backrest also brings great convenience to the operation of consumers.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded perspective view of fig. 1.

Fig. 3 is an exploded perspective view of the posterior joint.

Fig. 4 is an enlarged view of fig. 3 at a.

Fig. 5 is a schematic structural view of the backrest.

Fig. 6 is an enlarged view of fig. 5 at B.

Fig. 7 is a schematic structural view of the backrest gear.

FIG. 8 is a cross-sectional structural view of the foot lock.

Fig. 9 is an exploded perspective view of the foot lock and the foot pedal.

Fig. 10 is a schematic structural view of the wrench not being pulled upwards.

Fig. 11 is a schematic view of the wrench pulling up a small stroke.

Fig. 12 is a schematic view of the wrench pulling up a large stroke.

Fig. 13 is a schematic structural view of the foothold.

Fig. 14 is a schematic structural view before the backrest is pressed and linked with the pressing block.

Fig. 15 is a schematic view of the backrest fully folded.

Fig. 16 is a schematic view of the structure of the fully folded backrest linked with the fully folded pedals.

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 16, 1, a seat plate, 2, a backrest, 3, a pedal, 4, a front joint, 41, an upper rotating disc, 411, an upper tooth groove, 42, a front rotating disc, 421, a front tooth groove, 5, a rear joint, 51, a lower rotating disc, 511, a lower tooth groove, 512, a central shaft, 513, a sliding groove, 514, a stroke groove, 52, a rear rotating disc, 521, a rear tooth groove, 6, a wrench, 7, a second locking knob, 8, a backrest lock, 81, a driving tooth, 82, a top tooth, 821. the driving device comprises a driving slope 822, a sliding rib 83, a backrest gear 831, a travel tooth 84, a backrest pull rope 9, a pedal lock 91, a pedal gear 911, a gear shaft 912, a long groove hole 92, an adjusting button 10, a driving block 11, a linkage pressing block 111, an extrusion slope 12, a driving block spring 13, a pedal pull rope 14, a pedal spring 15, a backrest spring 16, a linkage sliding block 17, an inclined plane 18 and a return spring.

A backrest folding linkage unlocking pedal folding baby carriage seat pocket is shown in figure 1, and is a folding seat pocket installed on a baby carriage, and the structure of the seat pocket mainly comprises a seat plate 1, a backrest 2, a pedal 3 and the like; a rotationally mounted front joint 4 is arranged between the upper end of the pedal 3 and the front end of the seat plate 4, and a pedal lock 9 and an adjusting button 92 are arranged in the front joint; a rear joint 5 which is rotatably arranged is arranged between the lower end of the backrest 2 and the rear end of the seat board 1, a backrest lock 8 is arranged in the rear joint, and a wrench 6 which is pulled upwards is arranged at the upper end of the backrest 2.

Wherein, the front joint 4 is formed by coaxially hinging an upper turntable 41 at the upper end of the pedal 3 and a front turntable 42 at the front end of the seat board 1; the rear joint 5 is formed by coaxially hinging a lower rotary disc 51 at the lower end of the backrest 2 and a rear rotary disc 52 at the rear end of the seat plate 1.

The pedal lock 9 includes a pedal gear 91 arranged between the upper rotary disc 41 and the front rotary disc 42, and the pedal gear is provided with stroke teeth, specifically: the pedal gear 91 has a plurality of short teeth, and the height of the stroke teeth needs to be higher than the short teeth and embedded between any two adjacent short teeth, and the plurality of short teeth and the stroke teeth can form a circumferential uniform distribution.

The inner end face of the upper rotary disc 41 is provided with a meshing pedal gear 91, namely an upper tooth groove 411 for meshing a plurality of short teeth, and a stroke groove 514 for assembling stroke teeth is also arranged in the upper tooth groove; the outer end face of the front rotary disk 42 is provided with a meshing pedal gear 91 which actually only meshes with a plurality of front tooth grooves 421 with short teeth; the adjusting button 92 is disposed on the outer end surface of the upper dial 41, and the legs of the adjusting button 92 extend into the upper dial 41 and contact the pedal gear 91.

Thus, the pedal gear 91 is pushed outwards by the elasticity of the pedal spring 14 and is engaged with the upper tooth slot 411 and the front tooth slot 421, and the rotation of the pedal 3 relative to the seat board 1 is locked; when the adjusting button 92 is pressed inward, the pedal gear 91 is pushed to be disengaged from the upper tooth slot 411, and the stroke teeth 831 are still kept fitted in the stroke slots 514, that is, the pressing stroke of the adjusting button 92 only enables the short teeth of the pedal gear 91 to be disengaged from the upper tooth slot 411 but does not enable the stroke teeth 831 to be disengaged from the stroke slots 514, and the pedal lock 9 is half unlocked.

The backrest lock 8 comprises a backrest gear 83, a top tooth 82 and a driving tooth 81 which are coaxially arranged between the lower rotary disc 51 and the rear rotary disc 52, and specifically comprises: the inner end surface of the lower rotary disc 51 is provided with a central shaft 512 extending along the axis, and the backrest gear 83, the top gear 82 and the driving gear 81 are all sleeved on the central shaft 512.

The backrest gear 83 is provided with a travel gear 831, the backrest gear and the pedal gear have the same tooth arrangement structure, namely the backrest gear 83 is also provided with a plurality of short teeth, the height of the travel gear 831 is higher than that of the short teeth and is embedded between any two adjacent short teeth, and the short teeth and the travel gear form a circumferential uniform distribution.

Between the top tooth 82 and the driving tooth 81, there is a driving slope 821 fitted in a matching way, i.e. a matching structure similar to the wave crest and the wave trough, between the top tooth 82 and the central shaft 512, there are a sliding rib 822 and a sliding groove 513 fitted to each other and extending along the axial direction, the purpose of this structure is designed: the rotation of the driving tooth 81 can be pushed against the top tooth 82 through the driving slope 821 and converted into the axial translation of the top tooth 82 through the assembly of the sliding rib 822 and the sliding groove 513; an interconnecting backrest cord 84 is provided between the drive teeth 81 and the wrench 6.

The inner end surface of the lower rotary disc 51 is provided with a meshing backrest gear 83, namely a lower tooth groove 511 for meshing a plurality of short teeth, a stroke groove 514 for assembling a stroke tooth 831 is arranged in the lower tooth groove, and the design structure of the lower rotary disc is similar to that of the upper tooth groove 411; the outer end face of the rear turntable 52 is provided with a meshing backrest gear 83 which actually only meshes with a plurality of rear tooth sockets 521 with short teeth.

Thus, the back gear 83 is normally pushed outward by the elasticity of the back spring and simultaneously engaged in the lower teeth groove 511 and the rear teeth groove 521, and the rotation of the back 2 relative to the seat plate 1 is locked.

When the wrench 6 is pulled upwards by a small stroke, the driving tooth 81 is driven to rotate by the backrest pull rope 84, the driving tooth pushes the top tooth 82 to axially translate through the driving slope 821 to push the backrest gear 83 to disengage from the lower tooth socket 511, and meanwhile, the stroke tooth 831 is kept to be assembled in the stroke groove 514, that is, when the wrench 6 is pulled upwards by a small stroke, only the short tooth of the backrest gear 83 can disengage from the lower tooth socket 511, but the stroke tooth 831 cannot disengage from the stroke groove 514, and at this time, the backrest lock 8 is half-unlocked.

When the wrench 6 is moved upwards by a large stroke, the driving tooth 81 is driven to rotate by the backrest pull rope 84, the driving tooth pushes the top tooth 82 to axially translate by the driving slope 821 to push the backrest gear 83 to be completely separated from the lower tooth groove 511 and the stroke tooth 831 to be completely separated from the stroke groove 514, the backrest lock 8 is unlocked completely, and the backrest 2 can be completely folded relative to the seat plate 1.

Meanwhile, the upper end of the backrest 2 is provided with two locking knobs 7, and the upward pulling stroke of the wrench is controlled by the two locking knobs; the second lock knob 7 can abut against the wrench 6 in a normal state, so that the wrench 6 is limited by the second lock knob 7 and can only be pulled upwards by a small stroke, and the backrest lock 8 is controlled to form half-unlocking; once the second lock knob 7 is operated to rotate to enable the wrench 6 to abut against the position, the wrench 6 can be pulled upwards by a large stroke, and therefore the backrest lock 8 is controlled to be fully unlocked.

In addition, when the backrest 2 is driven to be completely folded relative to the seat plate 1 by the full unlocking of the backrest lock 8, the full folding of the backrest 2 can synchronously control the pedal lock 9 to form full unlocking, and then the pedal 3 is driven to be completely folded relative to the seat plate 1 in a linkage manner.

The concrete structure is as follows: the outer end face of the rear turntable 52 is provided with a linkage pressing block 11 and a driving block 10 which are arranged adjacent to the lower turntable 51, the linkage pressing block 11 is provided with an extrusion slope 111, and the driving block 10 and the linkage pressing block 11 are in matched contact with each other through an inclined plane 17.

The pedal gear 91 is provided with a coaxially extending gear shaft 911, the gear shaft is provided with a long slotted hole 912, a linkage sliding block passes through the long slotted hole, the linkage sliding block is in inclined plane fit contact with the wall of the long slotted hole 912, a pedal pull rope 13 connected with each other is arranged between the driving block 10 and the linkage sliding block 16, and a return spring 18 is sleeved on the pedal pull rope 13 and used for pushing the linkage sliding block 16 to pull the pedal pull rope 13 to be tightened, so that the inclined plane 17 between the driving block 10 and the linkage pressing block 11 is ensured to be in close fit contact.

The backrest 2 is completely folded relative to the seat plate 1, and then the linkage pressing block 11 is extruded through the extrusion slope 111, the linkage pressing block pushes the driving block 10 to translate through the inclined plane 17 in the inosculating contact, the linkage sliding block 16 is pulled through the pedal pull rope 13, the linkage sliding block pushes the pedal gear 91 to be completely separated from the upper tooth socket 411 and the stroke tooth to be completely separated from the stroke groove 514 through the inclined plane in the inosculating contact, the pedal lock 9 is fully unlocked, and the pedal 3 is driven to be completely folded relative to the seat plate 1 under the action of gravity in a linkage manner.

Obviously, the backrest lock 8 is half unlocked, the backrest 2 can only form rotation adjustment of the use angle relative to the seat plate 1 without squeezing the linkage pressing block 11, and when the backrest lock 8 is fully unlocked, the backrest 2 can be fully folded relative to the seat plate 1 to squeeze the linkage pressing block 11, so that full unlocking of the pedal lock is completed.

According to the utility model, the half unlocking and the full unlocking of the backrest lock 8 are controlled by different wrenching strokes of the wrench 6, so that the safety of the rotation adjustment and the full folding operation of the backrest 2 in the use angle is effectively ensured, and the structure that the backrest 2 is folded to unlock the folding of the pedal 3 in a linkage manner also brings great convenience to the operation of consumers.

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 baby carriage seat pocket with a folding backrest, linkage unlocking and pedal folding comprises a seat plate (1), a backrest (2) and a pedal (3); a rotationally mounted front joint (4) is arranged between the upper end of the pedal (3) and the front end of the seat plate (1), and a pedal lock (9) and an adjusting button (92) are arranged in the front joint; a rear joint (5) which is rotatably installed is arranged between the lower end of the backrest (2) and the rear end of the seat plate (1), a backrest lock (8) is arranged in the rear joint, and a wrench (6) which is pulled upwards is arranged at the upper end of the backrest (2), and the chair is characterized in that the pedal lock (9) is controlled by the adjusting button (92) to form semi-unlocking, and the semi-unlocking of the pedal lock (9) drives the pedal (3) to form rotation adjustment of a use angle relative to the seat plate (1); the upper end of the backrest (2) is provided with two locking knobs (7) which control the upward wrenching travel of the wrench (6); the wrench (6) is limited by the two lock knobs (7) to pull upwards for a small stroke to control the backrest lock (8) to form semi-unlocking, and the semi-unlocking of the backrest lock (8) drives the backrest (2) to form rotation adjustment of a use angle relative to the seat plate (1); the spanner (6) is limited by a two-way lock knob (7) to be pulled upwards by a large stroke to control the backrest lock (8) to be unlocked completely, the backrest (2) is driven to be folded completely relative to the seat plate (1) by the full unlocking of the backrest lock (8), the pedal lock (9) is synchronously controlled by the complete folding of the backrest (2) to be unlocked completely, and the pedal (3) is driven to be folded completely relative to the seat plate (1) in a linkage manner.

2. The seat pocket of the baby carriage with the backrest folding linkage unlocking and pedal folding as claimed in claim 1, characterized in that the front joint (4) is formed by coaxially hinging an upper turntable (41) at the upper end of the pedal (3) and a front turntable (42) at the front end of the seat plate (1); the rear joint (5) is formed by coaxially hinging a lower turntable (51) at the lower end of the backrest (2) and a rear turntable (52) at the rear end of the seat plate (1).

3. A seat pocket for a baby carriage with linked unlocking and pedal folding of the backrest folding according to claim 2, characterized in that the pedal lock (9) comprises a pedal gear (91) arranged between the upper turntable (41) and the front turntable (42), the pedal gear being provided with travel teeth; an upper tooth groove (411) meshed with the pedal gear (91) is formed in the inner end face of the upper rotary table (41), and a stroke groove (514) matched with the stroke teeth is formed in the upper tooth groove; the outer end face of the front turntable (42) is provided with a front tooth groove (421) meshed with the pedal gear (91); the adjusting button (92) is arranged on the outer end face of the upper turntable (41); under normal state, the pedal gear (91) is pushed by elasticity and meshed in the upper tooth groove (411) and the front tooth groove (421), and the pedal (3) is locked relative to the seat board (1); the adjusting button (92) is pressed inwards to push the pedal gear (91) to be separated from the upper tooth groove (411) and keep the stroke teeth assembled in the stroke groove, and the pedal lock (9) is half unlocked.

4. A seat pocket of a baby carriage with backrest folding linkage unlocking and pedal folding as claimed in claim 2, characterized in that the backrest lock (8) comprises a backrest gear (83), a top tooth (82) and a driving tooth (81) coaxially arranged between the lower rotary plate (51) and the rear rotary plate (52), the backrest gear (83) is provided with a stroke tooth (831), a driving slope (821) fitted in a matching manner is arranged between the top tooth (82) and the driving tooth (81), and a backrest pull rope (84) connected with each other is arranged between the driving tooth (81) and the wrench (6); a lower tooth groove (511) meshed with the backrest gear (83) is formed in the inner end face of the lower rotary disc (51), and a stroke groove (514) matched with the stroke teeth (831) is formed in the lower tooth groove; the outer end face of the rear turntable (52) is provided with a rear tooth groove (521) meshed with the backrest gear (83); under normal state, the backrest gear (83) is pushed by elasticity and meshed in the lower tooth groove (511) and the rear tooth groove (521) at the same time, and the rotation of the backrest (2) relative to the seat plate (1) is locked; the spanner (6) is upwards wrenched by a small stroke and drives the driving tooth (81) to rotate through the backrest pull rope (84), the driving tooth pushes the top tooth (82) to axially translate through the driving slope (821) to push the backrest gear (83) to be separated from the lower tooth groove (511), the stroke tooth (831) is kept to be assembled in the stroke groove (514), and the backrest lock (8) is half-unlocked; the wrench (6) is used for wrenching a large stroke upwards to drive the driving tooth (81) to rotate through the backrest pull rope (84), the driving tooth is pushed to push the top tooth (82) to axially translate through the driving slope (821) to push the backrest gear (83) to be completely separated from the lower tooth groove (511) and the stroke tooth (831) to be completely separated from the stroke groove (514), the backrest lock (8) is unlocked completely, and the backrest (2) is folded completely relative to the seat plate (1).

5. The seat pocket of the baby carriage with the backrest folding linkage unlocking and pedal folding as claimed in claim 4, characterized in that the inner end surface of the lower turntable (51) is provided with a central shaft (512) extending along the axial lead, the backrest gear (83), the top tooth (82) and the driving tooth (81) are all sleeved on the central shaft (512), a sliding rib (822) and a sliding groove (513) which are mutually assembled and axially extend are respectively arranged between the top tooth (82) and the central shaft (512), and the rotation of the driving tooth (81) pushes the top tooth (82) through a driving slope (821) and is converted into the axial translation of the top tooth (82) through the assembly of the sliding rib (822) and the sliding groove (513).

6. The seat pocket of the baby carriage with the backrest folding, linkage unlocking and pedal folding functions as claimed in claim 5, characterized in that the outer end face of the rear turntable (52) is provided with a linkage pressing block (11) and a driving block (10) which are arranged adjacent to the lower turntable (51), and one side of the pedal gear (91) is provided with a linkage sliding block (16); the driving block (10) is in matched contact with the linkage pressing block (11) through an inclined plane (17), pedal pull ropes (13) which are connected with each other are arranged between the driving block (10) and the linkage sliding block (16), and the linkage sliding block (16) is in matched contact with the pedal gear (91) through the inclined plane; the backrest (2) is completely folded relative to the seat plate (1) to extrude a linkage pressing block (11), the linkage pressing block pushes a driving block (10) to translate through an inclined plane (17) in inosculating contact and pulls a linkage sliding block (16) through a pedal pull rope (13), the linkage sliding block pushes a pedal gear (91) to be completely separated from an upper tooth groove (411) and a stroke tooth to be completely separated from a stroke groove through the inclined plane in inosculating contact, a pedal lock (9) is fully unlocked, and the pedal (3) is driven to be completely folded relative to the seat plate (1) in a linkage mode.

7. The seat pocket for baby carriage with foldable backrest, interlocked unlocking and pedal folding as claimed in claim 6, characterized in that said pedal gear (91) is provided with a coaxially extending toothed shaft (911) which is provided with a slotted hole (912) for said interlocked sliding block (16) to pass through, said interlocked sliding block (16) making an inclined surface fit contact with the wall of the slotted hole (912).

8. Seat pocket for baby carriages with linked unlocking pedal folding of the backrest folding according to claim 6, characterized by the fact that the backrest lock (8) is formed semi-unlocked, the backrest (2) forming the rotation adjustment of the use angle with respect to the seat plate (1) without squeezing the linked pressure block (11); the backrest lock (8) is fully unlocked, and the backrest (2) is completely folded relative to the seat plate (1) to extrude the linkage pressing block (11).

9. The seat pocket for baby stroller with backrest folding, linkage unlocking and pedal folding according to claim 8 is characterized in that the linkage pressing block (11) is provided with a pressing slope (111) for pressing the lower rotating disc (51).

10. The seat pocket for baby stroller with backrest folding linkage unlocking and pedal folding according to claim 6, characterized in that the pedal gear (91) or the backrest gear (83) has a plurality of short teeth, and the height of the stroke tooth (831) is higher than the short teeth and is embedded between any two adjacent short teeth.

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