CN218978471U

CN218978471U - Child study seat

Info

Publication number: CN218978471U
Application number: CN202223026552.9U
Authority: CN
Inventors: 柯小斌; 李振
Original assignee: Zhejiang Junda Intelligent Technology Co ltd
Current assignee: Zhejiang Junda Intelligent Technology Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-05-09
Anticipated expiration: 2032-11-15

Abstract

The utility model relates to the technical field of child learning seats, in particular to a child learning seat; the chair comprises chair legs, wherein upright rods are arranged on the upper end faces of the chair legs, and chair cushions are arranged on the upright rods; the vertical rod is of a hollow structure, a lifting rod which can slide along the axial direction of the vertical rod and is of a hollow structure is arranged in the vertical rod, a first connecting piece fixed through a bolt is arranged at the end part of the lifting rod, which is far away from the chair leg, an armrest is arranged at the end surface of the first connecting piece, which is far away from the lifting rod, and a first adjusting mechanism for adjusting the lifting rod to lift is arranged at the armrest; the armrest is also provided with a chair back with one end connected with the armrest, the chair back comprises a second connecting piece with one end connected with the armrest, and a back cushion is arranged at the end part of the second connecting piece, facing the chair cushion; the end part of the second connecting piece is provided with a second adjusting mechanism for adjusting the chair back; according to the utility model, the study seat with the back adjusted forwards and backwards can be realized, so that the study seat is suitable for children of different ages, and the comfort level of the children when the study seat is used is improved.

Description

Child study seat

Technical Field

The utility model relates to the technical field of child learning seats, in particular to a child learning seat.

Background

Child learning seats are often a kit for a child learning table and have the primary function of enabling the child to maintain a good posture when the child is using the learning seat to protect the child's spine.

The child learning seat comprises a seat base, a seat cushion and a seat back; most children learn chairs only can adjust the height of the chair back, but cannot adjust the chair back and the chair cushion, so that the positions of the chair back and the chair cushion are relatively fixed, and cannot be adjusted; the body shape of the child can also change along with the age, and the sitting depth of the child can also change when the child sits on the child learning seat; the larger the sitting depth is, the smaller the distance between the back of the child and the chair back is; conversely, the smaller the sitting depth, the greater the distance between the back of the child and the back of the chair; because current children study seat can't adjust the back of the chair, when older children sit on study seat, because the position of back of the chair is fixed relatively with the seat cushion for children's sitting degree of depth is less, can make children sit and feel uncomfortable on study seat for a long time, so need a study seat that can adjust the back of the chair back and forth, make it can be applicable to the children of different age bracket, improve children's comfort level when using study seat.

Disclosure of Invention

In view of the above-mentioned shortcomings in the prior art, the present utility model provides a child learning seat. When children in different age groups use the child seat, parents can sit on the child learning seat in a more comfortable way through adjusting the chair back, and the comfort level of the children when the children use the learning seat is improved.

In order to solve the technical problems, the utility model is solved by the following technical scheme:

the child study seat comprises seat legs, wherein upright rods are arranged on the upper end faces of the seat legs, and seat cushions are arranged on the upright rods; the vertical rod is of a hollow structure, a lifting rod which can slide along the axial direction of the vertical rod and is of a hollow structure is arranged in the vertical rod, a first connecting piece fixed through a bolt is arranged at the end part of the lifting rod, which is far away from the chair leg, an armrest is arranged at the end surface of the first connecting piece, which is far away from the lifting rod, and a first adjusting mechanism for adjusting the lifting rod to lift is arranged at the armrest; the armrest is also provided with a chair back, one end of which is connected with the armrest and can slide along the sitting depth direction of the chair cushion, the chair back comprises a second connecting piece, one end of which is connected with the armrest, and a back cushion is arranged at the end part of the second connecting piece, facing the chair cushion; the end part of the second connecting piece connected with the armrest is provided with a second adjusting mechanism for adjusting the chair back forwards and backwards.

According to the child learning seat, when children in different age groups use the child seat, parents can sit on the child learning seat more comfortably in a mode of adjusting the chair back, and the comfort level of the children when using the learning seat is improved.

The lifting rod can be connected with the handrail through the first connecting piece;

through the arrangement of the first adjusting mechanism, parents can conveniently adjust the lifting rod through the first adjusting mechanism when the children learn the seat by using the children;

through the arrangement of the second connecting piece, the cushion can be connected with the armrests through the second connecting piece;

through the setting of second adjustment mechanism for the head of a family can be comparatively convenient to adjust the relative position of back of the chair and seat cushion, thereby make children study children that the seat can be better be applicable to the children of different age bracket.

Preferably, the handrail comprises a first annular handle, a first mounting block is arranged on the side wall of the first annular handle, facing the upright rod, and the first mounting block is fixed on the upper end face of the first connecting piece through bolts; the first mounting block is provided with a first mounting groove which is used for mounting the first adjusting mechanism and communicated with the first annular handle towards the end face of the first connecting piece.

According to the utility model, the first adjusting mechanism can be conveniently and rapidly arranged on the first mounting block through the arrangement of the first mounting groove.

Preferably, the first adjusting mechanism comprises a second annular handle arranged in the first annular handle, and a second mounting block accommodated in the first mounting groove is arranged on the side wall of the second annular handle facing the vertical rod; one end of the second installation block is provided with a steel wire rope, one end of the steel wire rope is connected with the second installation block, and the other end of the steel wire rope extends into the lifting rod; the end part of the steel wire rope extending into the lifting rod is provided with a first limiting mechanism.

According to the lifting rod adjusting device, due to the arrangement of the steel wire rope, when a parent pulls the second annular handle, the first limiting mechanism can release the limit of the lifting rod through the steel wire rope, so that the lifting rod can be adjusted conveniently and quickly by the parent.

Preferably, the end part of the second installation block, which is positioned in the first installation groove, is provided with a first bar-shaped groove, the end face of the first connection piece, which faces the second installation block, is provided with a first limiting block which stretches into the first bar-shaped groove, a first spring is arranged between the first limiting block and the inner wall of the first bar-shaped groove, one end of the first spring is abutted against the end face, which faces the vertical rod, of the first limiting block, and the other end of the first spring is abutted against the inner side wall of the first bar-shaped groove.

According to the utility model, through the arrangement of the first spring, a parent can always keep the limit of the lifting rod when the lifting rod is not required to be adjusted.

Preferably, the first limiting mechanism comprises a third installation block fixed at the inner end part of the lifting rod extending into the vertical rod, and the third installation block is provided with a bending groove for extending the steel wire rope; the side wall of the third mounting block, which is parallel to the inner wall of the lifting rod, is provided with a first chute communicated with the curved groove, the first chute is provided with a first limiting pin, and the side wall of the lifting rod is provided with a square hole for the first limiting pin to extend out; the side wall of the vertical rod is provided with a plurality of first limiting holes for the first limiting pins to be inserted.

According to the lifting rod limiting device, the first limiting pin, the first limiting hole and the square hole are arranged, so that the first limiting pin can penetrate through the square hole and be inserted into the first limiting hole, and limiting of the lifting rod is achieved more conveniently.

Preferably, the side wall of the first mounting block is provided with a second sliding groove, the inner side wall of the end part, connected with the armrest, of the second connecting piece is provided with a sliding block capable of sliding in the second sliding groove, the end face, facing the second connecting piece, of the first mounting block is provided with a second strip-shaped groove, a plurality of second limiting holes are formed in the second strip-shaped groove, and the end part, connected with the armrest, of the second connecting piece is provided with a second limiting piece matched with the second limiting holes.

According to the chair, the relative positions of the chair back and the chair cushion can be conveniently and quickly adjusted by parents through the arrangement of the second sliding groove and the sliding block; through the setting of second locating part and second spacer pin for after the head of a family accomplishes the regulation to the back of the chair, fix the back of the chair through the mode of inserting the second spacing hole with the second locating part.

Preferably, the end part of the second connecting piece connected with the armrest is provided with a turnover cover plate; the inner side wall of the cover plate is provided with a first lug, and the outer side wall of the second connecting piece is provided with a second lug matched with the first lug.

According to the utility model, through the arrangement of the cover plate, when the cover plate is attached to the surface of the second connecting piece, the cover plate can always prop up the second limiting pin in the second limiting hole; through the setting of first lug and second lug for when apron and second connecting piece surface subsides, the frictional force can be produced between first lug surface and the second lug surface, can make the apron comparatively firm fixing on the second connecting piece under the condition that no external force applyed.

Preferably, the end part of the second connecting piece, which is connected with the armrest, is provided with a second mounting groove for mounting a second limiting piece, the second limiting piece comprises a third mounting block arranged in the second mounting groove, the upper end surface of the third mounting block is provided with a third mounting groove, and a second limiting pin, one end of which extends out of the third mounting block and is inserted into the second limiting hole, is arranged in the third mounting groove; the outer wall of the second limiting pin, which is positioned in the third mounting groove, is provided with an annular stop block, the end face of the annular stop block, which faces the second connecting piece, is provided with a second spring sleeved on the outer wall of the second limiting pin, one end of the second spring is abutted against the end face of the annular stop block, which faces the second connecting piece, and the other end of the second spring is abutted against the end face of the cover plate, which faces the second connecting piece; the end face of the cover plate facing the second connecting piece is provided with a screw hole for fixing the third mounting block.

According to the utility model, through the arrangement of the annular stop block and the second spring, when the cover plate is attached to the surface of the second connecting piece, the cover plate can extrude the second spring, and then extrude the second limiting pin so that the second limiting pin can be well abutted in the second limiting hole.

Preferably, a third spring is arranged between the first mounting block and the second connecting piece; one end of the third spring is abutted against the end face of the first mounting block, which faces the chair back, and the other end of the third spring is abutted against the side wall of the second connecting piece, which faces the upright rod.

According to the utility model, the second spring can generate a reaction force on the chair back when the position of the chair back is adjusted through the arrangement of the third spring, so that the chair back can not slide very rapidly towards the direction of the armrest when the second limiting pin is separated from the second limiting hole, and children can be better protected.

Preferably, the side wall of the backrest facing the second connecting piece is provided with a fixing piece; the mounting is equipped with the first grafting piece that the cross-section is T, and the lateral wall that the second connecting piece was towards the back is equipped with first grafting piece complex second grafting piece, and the second grafting piece is equipped with the grafting groove that supplies first grafting piece male.

According to the utility model, the cushion can be conveniently and rapidly mounted on the second connecting piece through the arrangement of the first plug-in block and the plug-in groove.

Drawings

FIG. 1 is an overall schematic view of a child learning seat in embodiment 1;

FIG. 2 is a schematic view of the first ring pull and the upper end surface of the first mounting block of example 1;

FIG. 3 is a schematic view of the first ring pull and the lower end face of the first mounting block of example 1;

FIG. 4 is a schematic view of the first connector, the second ring pull and the second mounting block of embodiment 1;

fig. 5 is a schematic view of the upright in example 1;

FIG. 6 is a schematic view of the lifting rod in embodiment 1;

FIG. 7 is a schematic view of the cover plate in example 1;

FIG. 8 is a schematic view of a second connector in embodiment 1;

FIG. 9 is a schematic view of a chair back in embodiment 1;

fig. 10 is a schematic view of a first mounting block in embodiment 1;

FIG. 11 is a schematic view of a second stop pin, an annular stop block and a second spring in embodiment 1;

fig. 12 is a schematic view of a third mounting block in embodiment 1;

fig. 13 is a schematic cross-sectional view of a child learning seat according to embodiment 1.

Detailed Description

For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings and examples. It is to be understood that the examples are illustrative of the present utility model and are not intended to be limiting.

Example 1

As shown in fig. 1 to 13, the present embodiment provides a child study seat, which includes a seat leg 100, an upright rod 150 is provided at an upper end surface of the seat leg 100, and a seat cushion 110 is provided at the upright rod 150; the upright rod 150 is of a hollow structure, a lifting rod 600 which can slide along the axial direction of the upright rod 150 and is of a hollow structure is arranged in the upright rod 150, a first connecting piece 140 which is fixed through a bolt is arranged at the end part of the lifting rod 600, which is far away from the chair leg 100, an armrest is arranged at the end surface of the first connecting piece 140, which is far away from the lifting rod 600, and a first adjusting mechanism for adjusting the lifting of the lifting rod 600 is arranged at the armrest; the armrest is also provided with a chair back, one end of which is connected with the armrest and can slide along the depth direction of the chair cushion 110, the chair back comprises a second connecting piece 130, one end of which is connected with the armrest, and the end of the second connecting piece 130, facing the chair cushion 110, is provided with a back cushion 120; the end of the second connecting piece 130 connected with the armrest is provided with a second adjusting mechanism for adjusting the chair back forwards and backwards.

Through a children study seat in this embodiment, it can realize when children of different age groups use children's seat, and the head of a family can be through the mode of adjusting the back of the chair, makes children can be comparatively comfortable sit on children study seat, improves children's comfort level when using study seat.

Wherein, the first connecting piece 140 is arranged so that the lifting rod 600 can be connected with the handrail through the first connecting piece 140;

through the arrangement of the first adjusting mechanism, parents can conveniently adjust the lifting rod 600 through the first adjusting mechanism when the children learn the seat by using the children;

by the arrangement of the second connecting piece 130, the cushion 120 can be connected with the armrest through the second connecting piece 130;

through the setting of second adjustment mechanism for the head of a family can be comparatively convenient adjust the relative position of back of the chair and seat cushion 110, thereby make children study children that the seat can be better be applicable to the children of different age bracket.

In this embodiment, the handrail includes a first ring-shaped handle 200, a first mounting block 210 is disposed on a side wall of the first ring-shaped handle 200 facing the upright rod 150, and the first mounting block 210 is fixed on an upper end surface of the first connecting piece 140 through a bolt; the first mounting block 210 is provided with a first mounting groove 300 for mounting the first adjusting mechanism and communicating with the first ring pull 200 toward the end surface of the first link 140.

Through the arrangement of the first mounting groove 300 in this embodiment, the first adjusting mechanism can be conveniently mounted on the first mounting block 210.

In this embodiment, the first adjusting mechanism includes a second annular pull handle 400 disposed in the first annular pull handle 200, and a second mounting block 410 accommodated in the first mounting groove 300 is disposed on a side wall of the second annular pull handle 400 facing the upright rod 150; the end of the second installation block 410 is provided with a steel wire rope 1320, one end of which is connected with the second installation block 410, and the other end of which extends into the lifting rod 600; the end of the wire rope 1320 that extends into the lifter 600 is provided with a first stop mechanism.

Through the setting of wire rope 1320 in this embodiment for the head of a family is when pulling second ring pull 400, first stop gear can be through wire rope 1320 release the spacing to lifter 600, thereby can make the head of a family comparatively convenient adjust lifter 600.

In this embodiment, a first bar-shaped slot 411 is disposed at an end of the second mounting block 410 located in the first mounting slot 300, a first limiting block 420 extending into the first bar-shaped slot 411 is disposed at an end face of the first connecting piece 140 facing the second mounting block 410, a first spring 430 is disposed between the first limiting block 420 and an inner wall of the first bar-shaped slot 411, one end of the first spring 430 abuts against an end face of the first limiting block 420 facing the upright rod 150, and the other end abuts against an inner wall of the first bar-shaped slot 411.

By the arrangement of the first spring 430 in this embodiment, the first limiting mechanism can always keep the limit on the lifting rod 600 when the parent does not need to adjust the lifting rod 600.

In this embodiment, the first limiting mechanism includes a third installation block 1210 fixed on the inner end portion of the lifting rod 600 extending into the upright rod 150, and the third installation block 1210 is provided with a curved slot 1220 into which the steel wire rope 1320 extends; the side wall of the third mounting block 1210 parallel to the inner wall of the lifting rod 600 is provided with a first sliding groove 1230 communicated with the curved groove 1220, the first sliding groove 1230 is provided with a first limiting pin 1340, and the side wall of the lifting rod 600 is provided with a square hole 610 for the first limiting pin 1340 to extend out; the side wall of the upright 150 is provided with a plurality of first limiting holes 500 for inserting the first limiting pins 1340.

Through the arrangement of the first limiting pin 1340, the first limiting hole 500 and the square hole 610 in the present embodiment, the first limiting pin 1340 can pass through the square hole 610 and be inserted into the first limiting hole 500, so that the limiting of the lifting rod 600 is more conveniently realized.

In this embodiment, the side wall of the first installation block 210 is provided with a second chute 230, the inner side wall of the end portion of the second connecting piece 130 connected with the armrest is provided with a sliding block capable of sliding in the second chute 230, the end face of the first installation block 210 facing the second connecting piece 130 is provided with a second bar-shaped groove 220, the second bar-shaped groove 220 is provided with a plurality of second limiting holes 221, and the end portion of the second connecting piece 130 connected with the armrest is provided with a second limiting piece matched with the second limiting holes 221.

Through the arrangement of the second sliding groove 230 and the sliding block in the embodiment, parents can conveniently adjust the relative positions of the chair back and the chair cushion 110; through the setting of second locating part and second spacing hole 221 for after the head of a family accomplishes the regulation to the back of the chair, fix the back of the chair through the mode of inserting second locating part in second spacing hole 221.

In this embodiment, the end of the second connecting member 130 connected to the armrest is provided with a reversible cover 131; the inner side wall of the cover plate 131 is provided with a first bump 700, and the outer side wall of the second connecting piece 130 is provided with a second bump 810 matched with the first bump 700.

Through the arrangement of the cover plate 131 in the embodiment, when the cover plate 131 is attached to the surface of the second connecting piece 130, the cover plate 131 can always support the second limiting piece in the second limiting hole 221; through the arrangement of the first bump 700 and the second bump 810, when the cover plate 131 is attached to the surface of the second connecting piece 130, a friction force can be generated between the surface of the first bump 700 and the surface of the second bump 810, so that the cover plate 131 can be firmly fixed on the second connecting piece 130 under the condition that no external force is applied.

In this embodiment, a second mounting groove 800 for mounting a second limiting member is formed at the end portion of the second connecting member 130 connected to the armrest, the second limiting member includes a fourth mounting block 1010 disposed in the second mounting groove 800, a third mounting groove 1011 is formed on the upper end surface of the fourth mounting block 1010, and a second limiting pin 1110 having one end extending out of the fourth mounting block 1010 and inserted into the second limiting hole 221 is disposed in the third mounting groove 1011; the outer wall of the second limiting pin 1110 in the third mounting groove 1011 is provided with an annular stop block 1120, the end surface of the annular stop block 1120 facing the second connecting piece 130 is provided with a second spring 1130 sleeved on the outer wall of the second limiting pin 1110, one end of the second spring 1130 is abutted against the end surface of the annular stop block 1120 facing the second connecting piece 130, and the other end is abutted against the end surface of the cover plate 131 facing the second connecting piece 130; the end surface of the cover plate 131 facing the second connection member 130 is provided with screw holes for fixing the fourth mounting block 1010.

Through the arrangement of the annular stop block 1120 and the second spring 1130 in the embodiment, when the cover plate 131 is attached to the surface of the second connecting piece 130, the cover plate 131 can squeeze the second spring 1130, and then squeeze the second limiting pin 1110, so that the second limiting pin can be well abutted in the second limiting hole 221.

In this embodiment, a third spring 1310 is disposed between the first mounting block 210 and the second connecting member 130; one end of the third spring 1310 abuts against the end surface of the first mounting block 210 facing the seat back, and the other end abuts against the side wall of the second connecting member 130 facing the upright 150.

Through the setting of third spring 1310 in this embodiment for when adjusting the position of back of the chair, third spring 1310 can produce the reaction force to the back of the chair, and then can make when second spacer pin 1110 breaks away from in the second spacing hole 221, the back of the chair can not very rapidly slide towards the direction of handrail, can be better protect children.

In this embodiment, the side wall of the cushion 120 facing the second connecting member 130 is provided with a fixing member 910; the fixing member 910 is provided with a first insertion block 920 having a T-shaped cross section, the side wall of the second connecting member 130 facing the backrest is provided with a second insertion block 820 engaged with the first insertion block 920, and the second insertion block 820 is provided with an insertion slot 830 into which the first insertion block 920 is inserted.

Through the arrangement of the first plug block 920 and the plug slot 830 in this embodiment, the cushion 120 can be installed on the second connecting member 130 more conveniently.

When the chair back of the learning chair needs to be adjusted back and forth, a child sits on the chair cushion 110, then the cover plate 131 is lifted, the second limiting pin 1110 is separated from the second limiting hole 221 after the cover plate 131 is lifted, the child presses the chair back backwards, the chair back slides along the sitting depth direction of the child, when the chair back moves to a position where the child feels comfortable, the cover plate 131 is covered, and under the pressing of the cover plate 131, the second limiting pin 1110 is firmly fixed in the second limiting hole 221 under the action of the second spring 1130; at this time, the adjustment of the chair back is completed.

When the height of the chair back needs to be adjusted, the second annular handle 400 is pulled first, the second limiting pin 1340 is separated from the second limiting hole 500, then the armrest is pulled upwards, the lifting rod 600 can be moved upwards in the axial direction of the upright rod 150, when the chair back is adjusted to a more comfortable height, the second annular handle 400 is loosened, the second annular handle 400 can slide towards the direction of the chair back under the action of the first spring 430, and the second limiting pin 1340 is inserted into the second limiting hole 500, so that the adjustment of the height of the chair back is completed.

In addition, in the child learning seat in this embodiment, a fastener 160 for fixing the seat 110 is sleeved on the outer wall of the upright 150, a beam 1330 is disposed on a side wall of the fastener 160 facing a point, a plug connector 170 is disposed on a side wall of the fastener 160, and a positioning hole 510 matched with the plug connector 170 is disposed on a side wall of the upright 150; when the front adjustment of the seat cushion 110 is required, the fastener 160 is loosened, the plug connector 170 is separated from the positioning hole 510, a parent can adjust the height of the seat cushion 110, and the front and rear adjustment of the seat cushion 110 can be realized by loosening the locking bolt 180; through the universal wheels 190 arranged on the lower end surfaces of the chair legs 100, parents can conveniently move the child learning chair.

In summary, the foregoing description is only of the preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the utility model.

Claims

1. The child study seat comprises seat legs (100), wherein upright rods (150) are arranged on the upper end faces of the seat legs (100), and seat cushions (110) are arranged on the upright rods (150); the method is characterized in that: the vertical rod (150) is of a hollow structure, a lifting rod (600) which can slide along the axial direction of the vertical rod (150) and is of a hollow structure is arranged in the vertical rod (150), a first connecting piece (140) fixed through a bolt is arranged at the end part of the lifting rod (600) far away from the chair leg (100), an armrest is arranged at the end surface of the first connecting piece (140) far away from the lifting rod (600), and a first adjusting mechanism for adjusting the lifting rod (600) to lift is arranged at the armrest; the armrest is also provided with a chair back, one end of which is connected with the armrest and can slide along the seating depth direction of the chair cushion (110), the chair back comprises a second connecting piece (130), one end of the second connecting piece (130) is connected with the armrest, and a back cushion (120) is arranged at the end part of the second connecting piece (130) facing the chair cushion (110); the end part of the second connecting piece (130) connected with the armrest is provided with a second adjusting mechanism for adjusting the chair back forwards and backwards.

2. The child learning seat of claim 1 wherein: the handrail comprises a first annular handle (200), a first mounting block (210) is arranged on the side wall of the first annular handle (200) facing the upright (150), and the first mounting block (210) is fixed on the upper end face of the first connecting piece (140) through bolts; the first mounting block (210) is provided with a first mounting groove (300) which is used for mounting the first adjusting mechanism and is communicated with the first annular handle (200) towards the end face of the first connecting piece (140).

3. The child learning seat of claim 2 wherein: the first adjusting mechanism comprises a second annular handle (400) arranged in the first annular handle (200), and a second mounting block (410) which is accommodated in the first mounting groove (300) is arranged on the side wall of the second annular handle (400) facing the vertical rod (150); one end of the second installation block (410) is provided with a steel wire rope (1320) with one end connected with the second installation block (410) and the other end extending into the lifting rod; the end of the steel wire rope (1320) extending into the lifting rod (600) is provided with a first limiting mechanism.

4. A child learning seat as claimed in claim 3, wherein: the end that second installation piece (410) is located in first mounting groove (300) is equipped with first bar groove (411), and the terminal surface of first connecting piece (140) towards second installation piece (410) is equipped with first stopper (420) that stretch into in first bar groove (411), is equipped with first spring (430) between first stopper (420) and first bar groove (411) inner wall, and the one end of first spring (430) supports and leans on the terminal surface of first stopper (420) towards pole setting (150), and the other end supports and leans on the inside wall of first bar groove (411).

5. A child learning seat as claimed in claim 3, wherein: the first limiting mechanism comprises a third installation block (1210) which is fixed on the inner end part of the lifting rod (600) which extends into the vertical rod (150), and the third installation block (1210) is provided with a bending groove (1220) into which a steel wire rope (1320) extends; the side wall of the third mounting block (1210) parallel to the inner wall of the lifting rod (600) is provided with a first sliding groove (1230) communicated with the curved groove (1220), the first sliding groove (1230) is provided with a first limiting pin (1340), and the side wall of the lifting rod (600) is provided with a square hole (610) for the first limiting pin (1340) to extend out; the side wall of the upright (150) is provided with a plurality of first limiting holes (500) for inserting the first limiting pins (1340).

6. The child learning seat of claim 1 wherein: the side wall of the first installation block (210) is provided with a second chute (230), the inner side wall of the end part of the second connecting piece (130) connected with the handrail is provided with a sliding block capable of sliding in the second chute (230), the end face of the first installation block (210) facing the second connecting piece (130) is provided with a second bar-shaped groove (220), the second bar-shaped groove (220) is internally provided with a plurality of second limiting holes (221), and the end part of the second connecting piece (130) connected with the handrail is provided with a second limiting piece matched with the second limiting holes (221).

7. The child learning seat of claim 6 wherein: the end part of the second connecting piece (130) connected with the handrail is provided with a turnover cover plate (131); the inner side wall of the cover plate (131) is provided with a first lug (700), and the outer side wall of the second connecting piece (130) is provided with a second lug (810) matched with the first lug (700).

8. The child learning seat of claim 6 wherein: the end part of the second connecting piece (130) connected with the handrail is provided with a second mounting groove (800) for mounting a second limiting piece, the second limiting piece comprises a fourth mounting block (1010) arranged in the second mounting groove (800), the upper end surface of the fourth mounting block (1010) is provided with a third mounting groove (1011), and a second limiting pin (1110) with one end extending out of the fourth mounting block (1010) and inserted into the second limiting hole (221) is arranged in the third mounting groove (1011); the outer wall of the second limiting pin (1110) positioned in the third mounting groove (1011) is provided with an annular stop block (1120), the end face of the annular stop block (1120) facing the second connecting piece (130) is provided with a second spring (1130) sleeved on the outer wall of the second limiting pin (1110), one end of the second spring (1130) is abutted against the end face of the annular stop block (1120) facing the second connecting piece (130), and the other end is abutted against the end face of the cover plate (131) facing the second connecting piece (130); the end face of the cover plate (131) facing the second connecting piece (130) is provided with a screw hole for fixing the fourth mounting block (1010).

9. The child learning seat of claim 2 wherein: a third spring (1310) is arranged between the first mounting block (210) and the second connecting piece (130); one end of the third spring (1310) is abutted against the end face of the first mounting block (210) facing the chair back, and the other end is abutted against the side wall of the second connecting piece (130) facing the upright (150).

10. The child learning seat of claim 1 wherein: the side wall of the back cushion (120) facing the second connecting piece (130) is provided with a fixing piece (910); the fixing piece (910) is provided with a first plug-in block (920) with a T-shaped section, the side wall of the second connecting piece (130) facing the backrest is provided with a second plug-in block (820) matched with the first plug-in block (920), and the second plug-in block (820) is provided with a plug-in groove (830) for the first plug-in block (920) to be inserted.