CN215904575U

CN215904575U - Baby carriage seat with multi-gear adjustment function

Info

Publication number: CN215904575U
Application number: CN202121751035.0U
Authority: CN
Inventors: 廖整辉
Original assignee: Zhongshan Weiya Technology Co ltd
Current assignee: Zhongshan Weiya Technology Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-02-25
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses a baby carriage seat with multi-gear adjustment, which comprises a base and a backrest rotationally connected to the base around a first axis A, wherein the backrest has a folded state and an unfolded state, a gear adjusting device capable of adjusting an unfolded included angle of the backrest is arranged between the backrest and the base, the base is rotationally connected with a grab rail around a second axis B, and a locking device capable of locking the grab rail and the base and being driven by the rotational backrest to unlock when the backrest moves from the unfolded state to the folded state is further arranged between the grab rail and the base. The utility model aims to overcome the defects of the prior art and provides a baby carrier seat which is provided with a handrail rod, can be folded when the baby carrier seat is folded and is convenient to fold and unlock and has multi-gear adjustment.

Description

Baby carriage seat with multi-gear adjustment function

[ technical field ] A method for producing a semiconductor device

The utility model relates to a baby carriage seat with multi-gear adjustment.

[ background of the utility model ]

The baby carriage is a tool for children to ride instead of walk, the space in the baby carriage can be used for the children to sit, lie and the like, the travel activities of the children carried by the users are greatly facilitated, a comfortable sitting and growing space is also provided for the children, in order to improve the comfort of sitting of the children, a seat backrest on the baby carriage usually has the function of adjusting the inclination angle of the seat backrest, and the users can adjust the seat backrest to the adaptation angle of lying or sitting of the children according to the needs of the children. At present, most of the seat backs of the baby carriages on the market are not provided with the grab bars or the grab bars are detachably arranged on the seat backs, and the seat backs of the baby carriages need to be detached when being folded, so that the seat backs of the baby carriages are inconvenient to use.

The present invention is based on the above-described disadvantages.

[ Utility model ] content

The utility model aims to overcome the defects of the prior art and provides a baby carrier seat which is provided with a handrail rod, can be folded when the baby carrier seat is folded and is convenient to fold and unlock and has multi-gear adjustment.

The utility model is realized by the following technical scheme:

a baby carriage seat with multi-gear adjustment is characterized in that: including base 1 and rotate around first axis A and connect back 2 on base 1, back 2 fold condition and expansion state have, back 2 and base 1 between be equipped with the gear adjusting device 6 that can adjust back 2 and expand the contained angle, base 1 rotate around second axis B and be connected with bar 4, bar 4 and base 1 between still be equipped with and can lock the two and can receive the locking device 7 of pivoted back 2 drive and unblock when back 2 removes to fold condition from expansion state.

The baby carriage seat with multi-gear adjustment is characterized in that: the first axis A and the second axis B are coaxial.

The baby carriage seat with multi-gear adjustment is characterized in that: in the back expansion state, the expansion included angle of the back include minimum included angle gear alpha and the maximum included angle gear beta that forms with base 1, only when the included angle of back 2 and base 1 is less than minimum included angle gear alpha that the back can stop, locking device 7 just unblock.

The baby carriage seat with multi-gear adjustment is characterized in that: the gear adjusting device 6 comprises a left shell 61 arranged on the backrest 2 and a right shell 62 arranged on the base 1, a cavity 63 is enclosed between the left shell 61 and the right shell 62, a spline 64 capable of sliding transversely relative to the cavity 63 is arranged in the cavity 63, a plurality of positioning grooves 65 capable of being clamped with the spline 64 to fix the backrest 2 and the base 1 mutually are arranged on the left shell 61 and the right shell 62, a first elastic piece 66 capable of pressing the spline 64 to clamp the spline 64 with the positioning grooves 65 on the left shell 61 and the right shell 62 simultaneously when the baby carriage seat with multi-gear adjustment is unfolded is arranged between the spline 64 and the right shell 62, a pressing piece 67 capable of sliding transversely relative to the cavity 63 to press the spline 64 to be separated from the positioning grooves 65 on the left shell 61 is movably connected between the spline 64 and the left shell 61, and a pulling cable 68 capable of pulling the pressing piece 67 to move is further arranged on the pressing piece 67, the backrest 2 is further provided with an operating piece 69 which can pull the cable to slide.

The baby carriage seat with multi-gear adjustment is characterized in that: the left shell 61 is internally provided with a protruding block 611 arranged transversely, the top pressing piece 67 is provided with a clamping groove 671 capable of accommodating the protruding block 611, and the top pressing piece 67 is further provided with a first inclined sliding surface 672 capable of being matched with the protruding block 611 when the top pressing piece rotates to enable the spline 64 to be separated from the left shell 61.

The baby carriage seat with multi-gear adjustment is characterized in that: the gear adjusting device 6 comprises a left shell 61 arranged on the backrest 2 and a right shell 62 arranged on the base 1, a cavity 63 is enclosed between the left shell 61 and the right shell 62, a spline 64 capable of sliding transversely relative to the cavity 63 is arranged in the cavity 63, a plurality of positioning grooves 65 capable of being clamped with the spline 64 to fix the backrest 2 and the base 1 mutually are arranged on the left shell 61 and the right shell 62, a first elastic piece 66 capable of pressing the spline 64 to clamp the spline 64 with the positioning grooves 65 on the left shell 61 and the right shell 62 simultaneously when the baby carriage seat with multi-gear adjustment is unfolded is arranged between the spline 64 and the right shell 62, a pressing piece 67 capable of sliding transversely relative to the cavity 63 to press the spline 64 to be separated from the positioning grooves 65 on the left shell 61 is movably connected between the spline 64 and the left shell 61, and a pulling cable 68 capable of pulling the pressing piece 67 to move is further arranged on the pressing piece 67, the backrest 2 is also provided with an operating piece 69 which can pull the inhaul cable to slide;

the grab bar 4 on still be connected with and can be around second axis B pivoted rotating turret 41, spline 64 include turning block 641, turning block 641 on be equipped with the storage tank 6411 that can hold rotating turret 41, locking device 7 include sliding connection in turning block 641 and can with the locking piece 71 of rotating turret 41 joint, left casing 61 in be equipped with and can promote the second inclined sliding surface 72 that locking piece 71 breaks away from rotating turret 41 when back 2 rotates folding to base 1, locking piece 71 and right casing 62 between still be equipped with and can make locking piece 71 keep the second elastic component 73 of kayser state.

The baby carriage seat with multi-gear adjustment is characterized in that: the turning block 641 is provided with a groove 6412 capable of accommodating the locking piece 71, the locking piece 71 comprises a locking block 711 connected in the groove 6412 in a sliding manner, the locking block 711 is provided with a plurality of clamping portions 712, and the turning frame 41 is provided with a clamping position 411 capable of clamping the clamping portions 712.

The baby carriage seat with multi-gear adjustment is characterized in that: the locking block 711 is further provided with a driving portion 713 transversely penetrating through the rotating block 641, extending into the left housing 61, and cooperating with the second inclined sliding surface 72 to drive the locking block 711 to transversely slide.

The baby carriage seat with multi-gear adjustment is characterized in that: the left shell 61 is provided with a plurality of arc-shaped protruding blocks 612 along the circumference, the second inclined sliding surface 72 is arranged on the arc-shaped protruding blocks 612, and a yielding groove 613 which can yield the driving part 713 when the backrest 2 rotates relative to the base 1 to adjust the gear is arranged between the arc-shaped protruding blocks 612.

Compared with the prior art, the utility model has the following advantages:

1. when the baby carriage seat is used, the backrest can be unfolded relative to the base, the unfolded included angle of the backrest relative to the base can be adjusted through the gear adjusting device, so that a child can feel more comfortable when the baby carriage seat is used on the seat.

2. The included angle of the unfolding gear of the backrest can be set between the minimum included angle gear alpha and the maximum included angle gear beta, the backrest can be adjusted according to requirements, the backrest can drive the locking device to unlock only when the included angle between the backrest and the base is smaller than the minimum included angle gear alpha where the backrest can stay, and the backrest cannot drive the locking device to unlock if the included angle between the backrest and the base is larger than the minimum included angle gear alpha where the backrest can stay, so that the child seat is safer to use.

[ description of the drawings ]

FIG. 1 is a perspective view of a stroller seat of the present invention;

FIG. 2 is one of the perspective views of the base of the stroller seat of the present invention;

FIG. 3 is one of the exploded views of the stroller seat of the present invention;

FIG. 4 is a second perspective view of the base of the stroller seat of the present invention;

FIG. 5 is a second exploded view of the stroller seat of the present invention;

FIG. 6 is a top view of the base of the stroller seat of the present invention;

FIG. 7 is an enlarged view of area C of FIG. 6;

FIG. 8 is a view of the stroller seat of the present invention in use;

FIG. 9 is a view of the stroller seat of the present invention in use when deployed to a maximum angle;

FIG. 10 is a view of the stroller seat of the present invention shown in the condition with the splines engaged with the spline grooves when the seat is unfolded to the maximum angle;

FIG. 11 is a view of the stroller seat in use with the present invention deployed;

FIG. 12 is a view of the stroller seat of the present invention shown with the spline engaged with the spline groove when the seat is unfolded;

FIG. 13 is a view of the stroller seat of the present invention in use deployed to a minimum angle;

FIG. 14 is a view of the stroller seat of the present invention shown in a state with the splines engaged with the spline grooves when the stroller seat is unfolded to a minimum angle;

FIG. 15 is an exploded view of the stroller seat of the present invention;

FIG. 16 is an exploded view of the shift position adjustment device in the stroller seat of the present invention;

FIG. 17 is an exploded view of the latch mechanism in the stroller seat of the present invention;

FIG. 18 is a view of the use of the splines, turret and lock in the stroller seat of the present invention;

FIG. 19 is a perspective view of the left housing of the stroller seat of the present invention;

FIG. 20 is a view of the stroller seat of the present invention in a semi-folded configuration;

fig. 21 is a view of the stroller seat of the present invention in the fully folded position.

[ detailed description ] embodiments

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1 to 21, the utility model provides a baby carriage seat with multi-gear adjustment, which comprises a base 1 and a backrest 2 rotatably connected to the base 1 around a first axis a, wherein the backrest 2 has a folded state and an unfolded state, a gear adjustment device 6 capable of adjusting the unfolded included angle of the backrest 2 is arranged between the backrest 2 and the base 1, the base 1 is rotatably connected with a grab bar 4 around a second axis B, and a locking device 7 capable of locking the grab bar 4 and the base 1 and being driven by the rotatable backrest 2 to unlock when the backrest 2 moves from the unfolded state to the folded state is further arranged between the grab bar 4 and the base 1.

When the baby carriage seat is used, the backrest 2 can be unfolded relative to the base 1, the backrest 2 can adjust the unfolding included angle of the backrest 2 relative to the base 1 through the gear adjusting device 6 to enable children to sit on the seat more comfortably, when the baby carriage seat needs to be folded, the gear adjusting device 6 is unlocked firstly, the backrest 2 can rotate relative to the base 1 and approach the base 1, the locking device 7 can be unlocked under the driving of the backrest 2 in the process that the backrest 2 moves from the unfolding state to the folding state, the grab bar 4 is unlocked with the base 1 at the moment, the backrest 2 can push the grab bar 4 in the rotating process to enable the grab bar 4 to rotate to approach the base 1, and therefore the folding of the whole baby carriage seat is completed, the unlocking of the locking device 7 and the folding of the grab bar 4 can be completed only by rotating the backrest 2 after the gear adjusting device 6 is unlocked, the operation is very simple and convenient for users to use.

As shown in fig. 1, the first axis a is coaxial with the second axis B. The structure arranged among the grab bar 4, the base 1 and the backrest 2 can be more compact, and the rotation and folding can be smoother.

As shown in fig. 9 to 16, in the unfolded state of the backrest, the unfolded included angle of the backrest includes a minimum included angle gear α and a maximum included angle gear β formed with the base 1, and the locking device 7 is unlocked only when the included angle between the backrest 2 and the base 1 is smaller than the minimum included angle gear α where the backrest can stay.

The included angle of the unfolding gear of the backrest can be set between the minimum included angle gear alpha and the maximum included angle gear beta, the backrest 2 can drive the locking device 7 to unlock only when the included angle between the backrest 2 and the base 1 is smaller than the minimum included angle gear alpha where the backrest can stay, and the backrest 2 cannot drive the locking device 7 to unlock if the included angle between the backrest 2 and the base 1 is larger than the minimum included angle gear alpha where the backrest can stay, so that the child seat is safer to use.

As shown in fig. 15 to 16, the shift position adjusting device 6 includes a left casing 61 disposed on the backrest 2 and a right casing 62 disposed on the base 1, a cavity 63 is defined between the left casing 61 and the right casing 62, a spline 64 capable of sliding transversely with respect to the cavity 63 is disposed in the cavity 63, a plurality of positioning grooves 65 capable of being simultaneously engaged with the spline 64 to fix the backrest 2 and the base 1 to each other are disposed on the left casing 61 and the right casing 62, a first elastic member 66 capable of pressing the spline 64 to simultaneously engage the spline 64 with the positioning grooves 65 on the left casing 61 and the right casing 62 when the stroller seat with multi-shift position adjustment is unfolded is disposed between the spline 64 and the right casing 62, a pressing member 67 capable of sliding transversely with respect to the cavity 63 to disengage the spline 64 from the positioning groove 65 on the left casing 61 is movably connected between the spline 64 and the left casing 61, the top pressing piece 67 is further provided with a pull cable 68 capable of pulling the top pressing piece 67 to move, and the backrest 2 is further provided with an operating piece 69 capable of pulling the pull cable to slide.

When the backrest 2 needs to be adjusted to rotate relative to the base 1, the operating element 69 is operated, the operating element 69 pulls the cable 68 to move upwards, the cable 68 pulls the pressing element 67 to rotate and transversely slide relative to the cavity 63 after being pulled to move upwards, the pressing element 67 presses the spline 64 to transversely slide relative to the cavity 63 when transversely sliding, so that the spline 64 is separated from the positioning groove 65 on the left shell 61, at the moment, the spline 64 completely enters the right shell 62, at the moment, the backrest 2 can rotate relative to the base 1 to adjust the inclination angle of the backrest 2 relative to the base 1, when the backrest 2 is adjusted to a preset angle and the spline 64 is aligned with the positioning groove 65 on the left shell 61 again, the operating element 69 is released, at the moment, the first elastic element 66 pushes the spline 64 and the pressing element 67 to reversely move and reset, so that the pushing spline 64 is clamped with the positioning groove 65 on the left shell 61 and the right shell 62 again, thereby completing the adjustment of the inclined angle of the backrest 2 relative to the base 1.

As shown in fig. 15, 16 and 20, a laterally disposed protrusion 611 is disposed in the left housing 61, a locking groove 671 capable of accommodating the protrusion 611 is disposed on the pressing member 67, and a first inclined sliding surface 672 capable of engaging with the protrusion 611 when the pressing member 67 rotates to separate the spline 64 from the left housing 61 is further disposed on the pressing member 67. When the spline 64 is in a state of being clamped with the positioning slots 65 on the left shell 61 and the right shell 62 at the same time, the clamping groove 671 on the pressing element 67 can completely accommodate the protrusion 611, and when the pressing element 67 is pulled, the first inclined sliding surface 612 on the pressing element 67 is matched with the protrusion 611 in the left shell 61, so that the pressing element 67 slides transversely relative to the cavity 63.

As shown in fig. 17, the grab bar 4 is further connected to a rotating frame 41 capable of rotating around a second axis B, the spline 64 includes a rotating block 641, the rotating block 641 is provided with an accommodating groove 6411 capable of accommodating the rotating frame 41, the locking device 7 includes a locking member 71 slidably connected in the rotating block 641 and capable of being engaged with the rotating frame 41, the left housing 61 is provided with a second inclined sliding surface 72 capable of pushing the locking member 71 to disengage from the rotating frame 41 when the backrest 2 is rotated and folded towards the base 1, and a second elastic member 73 capable of keeping the locking member 71 locked is further disposed between the locking member 71 and the right housing 62. When the baby carriage seat is folded, the gear adjusting device 6 needs to be unlocked firstly, the backrest 2 can rotate and fold relative to the base 1 after the gear adjusting device 6 is unlocked, the locking device 7 is interlocked and unlocked under the driving of the backrest 2 in the process that the backrest 2 wants the base 1 to rotate and fold, and the grab bar 4 can move towards the base 1 to rotate and fold along with the backrest 2. After the gear adjusting device 6 is unlocked, the backrest 2 is rotated, the second inclined sliding surface 72 on the backrest 2 gradually presses the locking piece 71 to make the locking piece 71 separate from the rotating frame 41, and at this time, the rotating frame 41 can rotate relative to the base 1, and contacts with the grab bar 4 and presses the grab bar 4 to rotate and fold towards the base 1 in the process that the backrest 2 rotates and folds towards the base 1.

As shown in fig. 17 to 19, the rotating block 641 is further provided with a groove 6412 capable of accommodating the locking member 71, the locking member 71 includes a locking block 711 slidably connected in the groove 6412, the locking block 711 is further provided with a plurality of clamping portions 712, and the rotating frame 41 is provided with a clamping position 411 capable of clamping with the clamping portions 712. The card slot 411 is a card slot.

As shown in fig. 17 to 19, the locking block 711 is further provided with a driving portion 713 transversely penetrating through the rotating block 641, extending into the left housing 61, and cooperating with the second inclined sliding surface 72 to drive the locking block 711 to slide transversely.

As shown in fig. 17 to 19, a plurality of arc-shaped protrusions 612 are circumferentially disposed in the left housing 61, the second inclined sliding surface 72 is disposed on the arc-shaped protrusions 612, and a yielding groove 613 capable of yielding the driving portion 713 when the backrest 2 rotates relative to the base 1 to adjust the shift position is disposed between the arc-shaped protrusions 612.

When the locking member 71 is in a normal state, the engaging portion 712 of the locking block 711 is engaged with the engaging portion 411 of the rotating frame 41, the engaging portion 411 is an engaging groove, and when the driving portion 713 of the locking block 711 is pressed by the second inclined sliding surface 72, the locking member 71 can be driven to slide laterally to disengage the engaging portion 712 of the locking block 711 from the engaging portion 411 of the rotating frame 41, and of course, the second inclined sliding surface 72 can be pressed against the driving portion 713 only when the backrest 2 is rotated and folded relative to the base 1. When the backrest 2 rotates relative to the base 1 to adjust the shift position, the driving portion 713 can move in the receding groove 614 between the arc-shaped protrusions 613 and is not driven by the second inclined sliding surface 72, and when the backrest 2 rotates relative to the base 1 to adjust the shift position, the driving portion 713 can abut against one side, away from the second inclined sliding surface 72, of the adjacent arc-shaped protrusion 613, at this time, the included angle between the backrest 2 and the base 1 is the largest, and the shift position between the backrest 2 and the base 1 is also adjusted to the largest shift position.

As shown in fig. 1 to 8, the utility model provides a baby carriage seat, comprising a base 1 and a backrest 2 connected to the base 1, wherein the base 1 is provided with a containing cavity 11, and the base 1 is further slidably connected with a resting plate 3 capable of extending out of the containing cavity 11 or retracting into the containing cavity 11.

The utility model can slide the placing plate 3 outwards from the accommodating cavity 11 of the base 1 when in use, and can be used for placing legs and feet of a child after the placing plate 3 extends out of the base 1, so that the child can feel comfortable when sitting for a long time.

As shown in fig. 1, the backrest 2 is rotatably connected to the base 1 about a first axis a. The backrest 2 can rotate and fold relative to the base 1, and the space occupied by the baby carriage seat during storage can be reduced.

As shown in fig. 1, a grab bar 4 is rotatably connected to the base 1 around a second axis B. Children can grip the grab rail 4 when sitting on the child seat, and is safer, and the grab rail 4 also can rotate folding relative to the base 1, and is more convenient when making the child seat accomodate.

As shown in fig. 2, 4, 6 and 7, the positions where the resting plate 3 can be stopped include a storage position retracted into the receiving cavity 11 and a deployed position extended out of the receiving cavity 11, the base 1 is provided with a first limiting protrusion 12 capable of cooperating with the resting plate 3 to fix the resting plate 3 in the storage position and a second limiting protrusion 13 capable of fixing the resting plate 3 in the deployed position, the resting plate 3 is provided with a third protrusion 31 capable of cooperating with the first limiting protrusion 12 or the second limiting protrusion 13 to position the resting plate 3 in the storage position or the deployed position, and when the resting plate 3 is subjected to an external force, the third protrusion 31 is disengaged from the first limiting protrusion 12 to convert the resting plate 3 from the storage position to the deployed position. The resting plate 3 is also provided with a pulling part 31. The user pulls out the resting plate 3 out of the accommodation chamber 11 by means of the pulling portion 31.

When the shelving plate 3 needs to be used, external force is applied to the pulling part 31 on the shelving plate 3, the third protrusion 31 on the shelving plate 3 is separated from the first limiting protrusion 12 on the base 1 under the action of the external force, at the moment, the shelving plate 3 can slide relative to the base 1 and extend outwards, and when the third protrusion 31 is in contact with the second limiting protrusion 13, the shelving plate 3 is in a fully unfolded state and can be used for children to shelf legs and feet, and meanwhile, the second limiting protrusion 13 also has the function of limiting the shelving plate 3 to be separated from the base 1. When not needing to use and shelving board 3, to shelving board 3 and exert external force, shelve board 3 once more with first spacing protruding 12 joint, shelve board 3 this moment and just moved to accomodating the position from the expansion displacement, shelve board 3 and just keep accomodating the position and can not slide relative base 1 always under the effect of external force not receiving, use convenience very, shelve board 3 in addition and also can accomodate when not, reduced the space that occupies.

As shown in fig. 4 and 5, a guide assembly 5 is disposed between the resting plate 3 and the base 1, the guide assembly 5 includes a guide sliding groove 51 disposed on the base 1, and the resting plate 3 is provided with a sliding portion 52 capable of sliding on the guide sliding groove 51. The sliding portion 52 cooperates with the guide slide groove 51 to allow the resting plate 3 to slide directionally with respect to the base 1.

Claims

1. A baby carriage seat with multi-gear adjustment is characterized in that: include base (1) and rotate around first axis (A) and connect back (2) on base (1), back (2) fold condition and expansion state have, back (2) and base (1) between be equipped with gear adjusting device (6) that can adjust back (2) expansion contained angle, base (1) rotate around second axis (B) and be connected with handrail rod (4), handrail rod (4) and base (1) between still be equipped with and can lock the two and can receive pivoted back (2) drive and locking device (7) of unblock when back (2) remove to fold condition from expansion state.

2. A stroller seat with multi-position adjustment according to claim 1, characterized in that: the first axis (A) is coaxial with the second axis (B).

3. A stroller seat with multi-position adjustment according to claim 1, characterized in that: in the back expansion state, the expansion included angle of back include minimum included angle gear (alpha) and the biggest included angle gear (beta) that forms with base (1), only when the contained angle of back (2) and base (1) is less than minimum included angle gear (alpha) that the back can stop, locking device (7) just unblock.

4. A stroller seat with multi-position adjustment according to claim 1, 2 or 3, characterized in that: the gear adjusting device (6) comprises a left shell (61) arranged on the backrest (2) and a right shell (62) arranged on the base (1), a cavity (63) is enclosed between the left shell (61) and the right shell (62), splines (64) capable of transversely sliding relative to the cavity are arranged in the cavity (63), a plurality of positioning grooves (65) capable of being clamped with the splines (64) simultaneously to fix the backrest (2) and the base (1) are arranged on the left shell (61) and the right shell (62), a first elastic piece (66) capable of pressing the splines (64) when the baby carriage seat with multi-gear adjustment is unfolded to enable the splines (64) to be simultaneously clamped with the positioning grooves (65) on the left shell (61) and the right shell (62) is arranged between the splines (64) and the right shell (62), and the cavity (63) can transversely slide relative to press the splines (64) and the left shell (61) is movably connected between the splines (64) and the left shell (61) The pressing piece (67) is separated from the positioning groove (65) on the left shell (61), the pressing piece (67) is further provided with a pull rope (68) capable of pulling the pressing piece (67) to move, and the backrest (2) is further provided with an operating piece (69) capable of pulling the pull rope to slide.

5. A stroller seat with multi-position adjustment according to claim 4, characterized in that: the left shell (61) is internally provided with a transverse lug (611), the jacking part (67) is provided with a clamping groove (671) capable of accommodating the lug (611), and the jacking part (67) is further provided with a first inclined sliding surface (672) which can be matched with the lug (611) when rotating to enable the spline (64) to be separated from the left shell (61).

6. A stroller seat with multi-position adjustment according to claim 1, 2 or 3, characterized in that: the gear adjusting device (6) comprises a left shell (61) arranged on the backrest (2) and a right shell (62) arranged on the base (1), a cavity (63) is enclosed between the left shell (61) and the right shell (62), splines (64) capable of transversely sliding relative to the cavity are arranged in the cavity (63), a plurality of positioning grooves (65) capable of being clamped with the splines (64) simultaneously to fix the backrest (2) and the base (1) are arranged on the left shell (61) and the right shell (62), a first elastic piece (66) capable of pressing the splines (64) when the baby carriage seat with multi-gear adjustment is unfolded to enable the splines (64) to be simultaneously clamped with the positioning grooves (65) on the left shell (61) and the right shell (62) is arranged between the splines (64) and the right shell (62), and the cavity (63) can transversely slide relative to press the splines (64) and the left shell (61) is movably connected between the splines (64) and the left shell (61) The pressing piece (67) is separated from the positioning groove (65) on the left shell (61), the pressing piece (67) is further provided with a pull rope (68) capable of pulling the pressing piece (67) to move, and the backrest (2) is further provided with an operating piece (69) capable of pulling the pull rope to slide;

handrail pole (4) on still be connected with and to wind second axis (B) pivoted rotating turret (41), spline (64) including turning block (641), turning block (641) on be equipped with storage tank (6411) that can hold rotating turret (41), locking device (7) including sliding connection in turning block (641) and locking piece (71) that can with rotating turret (41) joint, left casing (61) in be equipped with and can promote locking piece (71) to break away from second oblique slip surface (72) of rotating turret (41) when back (2) rotate folding to base (1), locking piece (71) and right casing (62) between still be equipped with elastic component (73) that can make locking piece (71) keep the kayser state.

7. A stroller seat with multi-position adjustment according to claim 6, characterized in that: the turning block (641) on still be equipped with recess (6412) that can hold locking piece (71), locking piece (71) including locking piece (711) of sliding connection in recess (6412), locking piece (711) on still be equipped with a plurality of joint portions (712), rotating turret (41) on be equipped with joint position (411) that can with joint portion (712) joint.

8. A stroller seat with multi-position adjustment according to claim 7, characterized in that: the locking block (711) is also provided with a driving part (713) which transversely penetrates through the rotating block (641), extends into the left shell (61) and is matched with the second inclined sliding surface (72) to drive the locking block (711) to transversely slide.

9. A stroller seat with multi-position adjustment according to claim 6, characterized in that: left side casing (61) in be equipped with a plurality of arc lugs (612) along the circumference, second oblique slip surface (72) locate on arc lug (612), and each arc lug (612) between be equipped with can be for drive division (713) groove of stepping down (613) of stepping down when base (1) rotation regulation gear is adjusted in back (2).