CN213247982U - High chair for baby - Google Patents

Abstract

The utility model discloses a high chair for baby, including the seat, the seat below is equipped with supporting mechanism, elevating system is installed to supporting mechanism both ends symmetry, two elevating system respectively with seat both sides fixed connection, back mechanism is installed to seat inner wall one end, the one end that back mechanism was kept away from at the seat top is installed dining table mechanism, the one end that back mechanism was kept away from to the seat bottom is installed and is kept off leg mechanism, the utility model discloses an adjust supporting mechanism, can fold first U-shaped pole and second U-shaped pole, through the height of the adjustable seat of elevating system, through the angle of the adjustable back board of back mechanism, through the position of the adjustable bearing plate of dining table mechanism, through the angle of the adjustable leg board of leg mechanism for this device can diversely adjust, makes things convenient for people to use.

Description

High chair for baby

Technical Field

The utility model relates to a baby dining chair technical field specifically is a high chair is used to baby.

Background

A chair for helping babies to eat by using the baby dining chair. The infant is helped to successfully transit from a one-to-one feeding process to dining with parents and elders, the parents can easily take care of the infant, the infant can find fun in the eating process, the existing infant dining chair is a high chair for taking care of the infant well in order to take care of the infant well in high heat, the adult can take care of the infant without bending down, the existing infant dining chair is simple in structure and not convenient for adjusting all parts of the dining chair, and therefore the infant high chair is provided.

Disclosure of Invention

An object of the utility model is to provide a high chair for baby to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high chair for baby, includes the seat, the seat below is equipped with supporting mechanism, elevating system is installed to supporting mechanism both ends symmetry, two elevating system respectively with seat both sides fixed connection, back mechanism is installed to seat inner wall one end, the one end that back mechanism was kept away from at the seat top is installed dining table mechanism, the one end that back mechanism was kept away from to the seat bottom is installed and is kept off leg mechanism.

Preferably, the supporting mechanism comprises a first U-shaped rod, a second U-shaped rod, a first rotating block, a second rotating block, a first clamping groove, a limiting tooth, a first pressing button, a top column, a protective cover and an anti-slip sleeve, the first U-shaped rod and the second U-shaped rod are symmetrically arranged below the seat plate, the first rotating block is fixed at two ends of the first U-shaped rod, the second rotating block is fixed at two ends of the second U-shaped rod, the first rotating block and the second rotating block are rotatably connected through a shaft pin, the first clamping groove is formed in one side, close to each other, of the first rotating block and the second rotating block, the limiting tooth is clamped between the two first clamping grooves, the first pressing button is slidably connected to one side, far away from the first rotating block, of the second rotating block, the top column is fixed at an equal distance on one side, close to the first rotating block, of the first rotating block, the top column penetrates through the second rotating block to be in contact with the limiting tooth, the protective cover is fixed on the outer side of the second rotating block, and anti-skidding sleeves are fixed at the bottoms of the first U-shaped rod and the second U-shaped rod.

Preferably, elevating system is including adjusting shell, turn trough, turn button, spacing piece and second draw-in groove, the symmetrical sliding connection in second U-shaped pole both ends has the adjusting shell, the turn trough has been seted up to adjusting shell one side, the turn trough inner wall rotates through the pivot and is connected with the turn button, turn button inner wall joint has spacing piece, the impartial distance in second U-shaped pole both ends is seted up with spacing piece matched with second draw-in groove, and spacing piece one end and second draw-in groove joint, two the adjusting shell respectively with seat both sides fixed connection.

Preferably, the backrest mechanism includes first pinion rack, first back board, sliding seat, the first in command, U-shaped pull rod, first spacing post and limiting plate, seat inner wall one end symmetry is fixed with first pinion rack, two be connected with first back board through the pivot rotation between the first pinion rack, one side upper end that dining table mechanism was kept away from to first back board is fixed with the sliding seat, sliding seat one side sliding connection has the first in command, the first in command one end joint has the U-shaped pull rod, U-shaped pull rod both ends all are fixed with first spacing post, and the tooth's socket joint on first spacing post and the first pinion rack, the one end symmetry that first back board is close to first spacing post is fixed with the limiting plate, and U-shaped pull rod both ends and limiting plate sliding connection.

Preferably, the back mechanism includes second pinion rack, second back board, mounting groove, second handle, plastics elasticity strip, connection piece and the spacing post of second, seat inner wall one end symmetry is fixed with the second pinion rack, two be connected with the second back board through pivot rotation between the second pinion rack, the mounting groove has been seted up to one side that the second back board is close to table mechanism, mounting groove inner wall upper end sliding connection has the second handle, and stretches out the one side that table mechanism was kept away from to the back bottom the second handle, second handle one side symmetry is fixed with plastics elasticity strip, two plastics elasticity strip upper end is fixed with the connection piece, and connection piece and mounting groove inner wall sliding connection, the one end that plastics elasticity strip is close to the second pinion rack is fixed with the spacing post of second, and the tooth's socket joint on spacing post of second and the second pinion rack.

Preferably, dining table mechanism includes fixed plate, spacing groove, bearing plate, draws handle, joint piece, removable dinner plate and elasticity card, the one end symmetry that backrest mechanism was kept away from at the seat top is fixed with the fixed plate, the spacing groove has been seted up to fixed plate one side equidistance, two fixed plate top sliding connection has bearing plate, the inside one end sliding connection who is close to the fixed plate of bearing plate has a handle, draw one side that is close to the spacing groove to be fixed with the joint piece, and joint piece and spacing groove joint, bearing plate upper surface joint has removable dinner plate, removable dinner plate both ends symmetry is fixed with elasticity card, and removable elasticity card and bearing plate dinner plate joint through elasticity card.

Preferably, keep off leg mechanism and include the fixed cylinder, keep off leg plate, first oblique fluted disc, the oblique fluted disc of second and the second presses the button, the one end that back mechanism was kept away from to the seat bottom is fixed with the fixed cylinder, two the fixed cylinder rotates through the pivot and is connected with the fender leg plate, fixed cylinder inner wall joint has first oblique fluted disc, the inboard sliding connection of one end that keeps off the leg plate to be close to the fixed cylinder has the oblique fluted disc of second with first oblique fluted disc matched with, and first oblique fluted disc and the oblique fluted disc joint of second, the one end outside sliding connection that keeps off the leg plate to be close to the fixed cylinder has the second to press the button, the second passes second oblique fluted disc and the contact of first oblique fluted disc according to button one end.

Preferably, the seat inner wall is close to the one end joint that keeps off leg mechanism and is had the non-slip column.

Preferably, the bearing support plate is internally and symmetrically fixed with inserting blocks, two ends of the first U-shaped rod are symmetrically fixed with H-shaped blocks matched with the inserting blocks, and the inserting blocks are connected with the H-shaped blocks in an inserting mode.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an adjust supporting mechanism, can fold first U-shaped pole and second U-shaped pole, through the height of the adjustable seat of elevating system, through the angle of the adjustable back board of back mechanism, through the position of the adjustable bearing plate of dining table mechanism, through the angle of the adjustable fender leg board of fender leg mechanism for this device can diversely adjust, makes things convenient for people to use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a second schematic view of the overall structure of the present invention;

FIG. 3 is a third schematic view of the overall structure of the present invention;

FIG. 4 is a schematic view of the structure of the limit tooth of the present invention;

FIG. 5 is a schematic view of the structure of the knob of the present invention;

FIG. 6 is a schematic view of the structure of the spacing piece of the present invention;

fig. 7 is one of the structural schematic diagrams of the backrest mechanism of the present invention;

FIG. 8 is a schematic view of the dining table mechanism of the present invention;

FIG. 9 is a second schematic view of the dining table mechanism of the present invention;

FIG. 10 is a third schematic view of the dining table mechanism of the present invention;

FIG. 11 is a schematic view of the structure of the pull handle of the present invention;

fig. 12 is a schematic view of a first helical gear plate structure of the present invention;

fig. 13 is a schematic structural view of a second helical fluted disc of the present invention;

fig. 14 is a second schematic structural view of the backrest mechanism of the present invention;

fig. 15 is a third schematic view of the backrest mechanism of the present invention.

In the figure: 1. a seat plate;

2. a support mechanism; 21. a first U-shaped bar; 22. a second U-shaped bar; 23. a first rotating block; 24. a second rotating block; 25. a first card slot; 26. limiting teeth; 27. a first press button; 28. a top pillar; 29. a protective cover; 210. an anti-slip sleeve;

3. a lifting mechanism; 31. an adjustment housing; 32. rotating the groove; 33. turning a button; 34. a limiting sheet; 35. a second card slot;

4. a backrest mechanism; 41. a first toothed plate; 42. a first back board; 43. a sliding seat; 44. a first handle; 45. a U-shaped pull rod; 46. a first limit post; 47. a limiting plate; 48. a second toothed plate; 49. a second back board; 410. mounting grooves; 411. a second handle; 412. a plastic elastic strip; 413. connecting sheets; 414. a second limit post;

5. a dining table mechanism; 51. a fixing plate; 52. a limiting groove; 53. a load bearing plate; 54. pulling a handle; 55. a clamping block; 56. a detachable dinner plate; 57. an elastic card;

6. a leg blocking mechanism; 61. a fixed cylinder; 62. a leg shield; 63. a first inclined fluted disc; 64. a second inclined fluted disc; 65. a second press button;

7. an anti-slip column; 8. inserting a block; 9. h-shaped blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1, a high chair for infants in the figure comprises a seat 1, a supporting mechanism 2 is arranged below the seat 1, lifting mechanisms 3 are symmetrically arranged at two ends of the supporting mechanism 2, the two lifting mechanisms 3 are respectively and fixedly connected with two sides of the seat 1, a backrest mechanism 4 is arranged at one end of the inner wall of the seat 1, a dining table mechanism 5 is arranged at one end of the top of the seat 1, which is far away from the backrest mechanism 4, a leg blocking mechanism 6 is arranged at one end of the bottom of the seat 1, which is far away from the backrest mechanism 4, and an anti-slip column 7 is clamped at one end of the inner wall of the seat 1, which is close to the leg blocking mechanism 6.

Referring to fig. 2, 3 and 4, the supporting mechanism 2 includes a first U-shaped rod 21, a second U-shaped rod 22, a first rotating block 23, a second rotating block 24, a first engaging groove 25, a limiting tooth 26, a first pressing button 27, a supporting post 28, a protective cover 29 and an anti-slip sleeve 210, the first U-shaped rod 21 and the second U-shaped rod 22 are symmetrically disposed below the seat plate 1, the first rotating block 23 is fixed at both ends of the first U-shaped rod 21, the second rotating block 24 is fixed at both ends of the second U-shaped rod 22, the first rotating block 23 and the second rotating block 24 are rotatably connected through a shaft pin, the first engaging groove 25 is disposed at one side of the first rotating block 23 close to the second rotating block 24, the limiting tooth 26 is clamped between the two first engaging grooves 25, the first rotating block 27 is slidably connected to one side of the second rotating block 24 far from the first rotating block 23, the pressing button 27 is fixed at one side of the first rotating block 23 close to the first rotating block at an equal distance, and the top column 28 passes through the second rotary block 24 to contact with the limit teeth 26, a protective cover 29 is fixed on the outer side of the second rotary block 24, the anti-skid sleeves 210 are fixed at the bottoms of the first U-shaped rod 21 and the second U-shaped rod 22, and press the first press button 27, so that the first pressing button 27 pushes the limit tooth 26 to slide in the first slot 25 on the second rotating block 24 through the top pillar 28, so that the limit tooth 26 slides out of the second rotating block 24 completely, and enters the first clamping groove 25 on the inner wall of the first rotating block 23, at this time, by rotating the first U-shaped rod 21 or the second U-shaped rod 22, the first U-shaped rod 21 and the second U-shaped rod 22 are combined together, then, one releases the first pressing button 27, so that half of the limit tooth 26 slides out of the first rotating block 23 and is clamped in the first clamping groove 25 in the second rotating block 24, the first rotating block 23 and the second rotating block 24 are limited, and the same operation is carried out when the first rotating block and the second rotating block are opened.

Referring to fig. 2, 5 and 6, the lifting mechanism 3 includes an adjusting shell 31, a rotating groove 32, a rotating button 33, a limiting plate 34 and a second engaging groove 35, the two ends of the second U-shaped rod 22 are symmetrically and slidably connected with the adjusting shell 31, one side of the adjusting shell 31 is provided with the rotating groove 32, the inner wall of the rotating groove 32 is rotatably connected with the rotating button 33 through a shaft pin, the inner wall of the rotating button 33 is engaged with the limiting plate 34, the two ends of the second U-shaped rod 22 are equally spaced with the second engaging groove 35 matched with the limiting plate 34, one end of the limiting plate 34 is engaged with the second engaging groove 35, the two adjusting shells 31 are respectively and fixedly connected with the two sides of the seat plate 1, a person holds the two adjusting shells 31 with two hands and presses the lower end of the rotating button 33 with a finger, so that the rotating button 33 rotates in the rotating groove 32, and the limiting plate 34 is separated from the second engaging groove 35, at this time, the person slides the adjusting shell 31 on, adjust the height of seat 1, after the regulation is accomplished, people loosen adjusting shell 31 for turn-button 33 resets, makes spacing piece 34 card carry on spacingly in second draw-in groove 35 to adjusting shell 31.

Referring to fig. 2, 3 and 7, the backrest mechanism 4 includes a first toothed plate 41, a first backrest plate 42, a sliding seat 43, a first handle 44, a U-shaped pull rod 45, a first limit post 46 and a limit plate 47, the first toothed plate 41 is symmetrically fixed at one end of the inner wall of the seat plate 1, the first backrest plate 42 is rotatably connected between the two first toothed plates 41 through a shaft pin, the sliding seat 43 is fixed at the upper end of one side of the first backrest plate 42 away from the dining table mechanism 5, the first handle 44 is slidably connected to one side of the sliding seat 43, the U-shaped pull rod 45 is fastened to one end of the first handle 44, the first limit post 46 is fixed at both ends of the U-shaped pull rod 45, the first limit post 46 is fastened to a toothed groove on the first toothed plate 41, the limit plate 47 is symmetrically fixed at one end of the first backrest plate 42 close to the first limit post 46, and both ends of the U-shaped pull rod 45 are slidably connected to the limit plate 47, through sliding the first handle 44, the first handle 44 drives the U-shaped pull rod 45 to slide upwards, and then drives the two first limiting columns 46 to slide upwards and separate from the first toothed plate 41, at this time, people can turn over the first back plate 42, adjust the angle of the first back plate 42, after the adjustment is completed, people loosen the first handle 44, and the first limiting columns 46 are clamped into the first toothed plate 41 again.

Referring to fig. 8, 9, 10 and 11, the dining table mechanism 5 includes a fixing plate 51, a limiting groove 52, a bearing support plate 53, a pull handle 54, a clamping block 55, a detachable dinner plate 56 and an elastic clamping piece 57, the fixing plate 51 is symmetrically fixed at one end of the top of the seat plate 1 far away from the backrest mechanism 4, the limiting groove 52 is formed at one side of the fixing plate 51 at equal intervals, the bearing support plate 53 is connected to the top of the two fixing plates 51 in a sliding manner, the pull handle 54 is connected to one end of the bearing support plate 53 close to the fixing plate 51 in a sliding manner, the clamping block 55 is fixed at one side of the pull handle 54 close to the limiting groove 52, the detachable dinner plate 56 is clamped to the upper surface of the bearing support plate 53, the elastic clamping pieces 57 are symmetrically fixed at two ends of the detachable dinner plate 56, the detachable dinner plate 56 is clamped to the bearing support plate 53 through the elastic clamping, make to draw joint piece 55 on 54 and the spacing groove 52 on the fixed plate 51 to break away from, people can slide on fixed plate 51 this moment and bear layer board 53, adjust the distance that bears layer board 53, adjust and accomplish the back, people loosen and draw 54 for joint piece 55 card once more into spacing groove 52 can, and can be with removable dinner plate 56 card on bearing layer board 53 through elasticity card 57, make things convenient for people to take off the washing at any time.

Referring to fig. 12 and 13, the leg blocking mechanism 6 includes a fixed cylinder 61, a leg blocking plate 62, a first angled toothed disc 63, a second angled toothed disc 64, and a second pressing button 65, the fixed cylinder 61 is fixed at an end of the bottom of the seat plate 1 away from the backrest mechanism 4, the two fixed cylinders 61 are rotatably connected to the leg blocking plate 62 through shaft pins, the first angled toothed disc 63 is clamped to an inner wall of the fixed cylinder 61, the second angled toothed disc 64 matched with the first angled toothed disc 63 is slidably connected to an inner side of the leg blocking plate 62 near the end of the fixed cylinder 61, the first angled toothed disc 63 is clamped to the second angled toothed disc 64, a second button 65 is slidably connected to an outer side of the leg blocking plate 62 near the end of the fixed cylinder 61, one end of the second pressing button 65 penetrates through the second pressing angled toothed disc 64 to contact the first angled toothed disc 63, and one presses the second pressing button 65, so that the second pressing button 65 pushes the first angled toothed disc 63 to slide, make first oblique fluted disc 63 and the oblique fluted disc 64 of second break away from, people can overturn downwards this moment and keep off leg plate 62, adjust and accomplish the back, through loosening second press button 65, make first oblique fluted disc 63 and the meshing of the oblique fluted disc 64 of second, then accomplish the spacing to keeping off leg plate 62, and people are when upwards adjusting and keep off leg plate 62, because the tooth of first oblique fluted disc 63 and the oblique fluted disc 64 of second is the slope form, make people directly upwards rotate and keep off leg plate 62 and make the inclined plane of the inclined plane extrusion first oblique fluted disc 63 of the tooth of the oblique fluted disc 64 of second promptly, make first oblique fluted disc 63 and the oblique fluted disc 64 of second break away from, and then can adjust.

Referring to fig. 2 and 8, the insert blocks 8 are symmetrically fixed inside the bearing support plate 53, the H-shaped blocks 9 matched with the insert blocks 8 are symmetrically fixed at two ends of the first U-shaped rod 21, and the insert blocks 8 are inserted into the H-shaped blocks 9, so that when a baby does not need to have a meal, the bearing support plate 53 can be detached and placed on the first U-shaped rod 21, and the folding and storage are convenient.

The working principle is as follows:

when the infant sitting on the sitting plate 1 is used, the anti-slip column 7 is arranged to prevent the infant from slipping off, the supporting mechanism 2 can be folded, the first pressing button 27 is pressed to enable the first pressing button 27 to push the limiting teeth 26 to slide in the first clamping grooves 25 on the second rotary block 24 through the top column 28, so that the limiting teeth 26 completely slip out of the second rotary block 24 and enter the first clamping grooves 25 on the inner wall of the first rotary block 23, at the moment, people rotate the first U-shaped rod 21 or the second U-shaped rod 22 to enable the first U-shaped rod 21 and the second U-shaped rod 22 to be combined together, then people loosen the first pressing button 27 to enable half of the limiting teeth 26 to slip out of the first rotary block 23 and be clamped in the first clamping grooves 25 in the second rotary block 24, the first rotary block 23 and the second rotary block 24 are limited, the same operation is carried out when the infant sitting plate is opened, when the height of the sitting plate 1 is adjusted, people hold two adjusting shells 31 by two hands, and the lower end of the rotating button 33 is pressed by fingers, so that the rotating button 33 rotates in the rotating groove 32, and further the limiting sheet 34 is separated from the second clamping groove 35, at the moment, people slide the adjusting shell 31 on the second U-shaped rod 22 to adjust the height of the seat plate 1, after the adjustment is completed, people loosen the adjusting shell 31, so that the rotating button 33 is reset, so that the limiting sheet 34 is clamped in the second clamping groove 35, the adjusting shell 31 is limited, when people adjust the height of the first back plate 42, the first handle 44 is slid, so that the first handle 44 drives the U-shaped pull rod 45 to slide upwards, and further drives the two first limiting columns 46 to slide upwards and separate from the first toothed plate 41, at the moment, the first back plate 42 can be turned over to adjust the angle of the first back plate 42, after the adjustment is completed, people loosen the first handle 44, so that the first limiting column 46 is clamped into the first toothed plate 41 again, when people adjust the distance between the detachable dinner plate 56 and the baby, the pull handle 54 is pulled to separate the clamping block 55 on the pull handle 54 from the limiting groove 52 on the fixing plate 51, at this time, people can slide the bearing support plate 53 on the fixing plate 51 to adjust the distance of the bearing support plate 53, after the adjustment is completed, people loosen the pull handle 54 to enable the clamping block 55 to be clamped into the limiting groove 52 again, and the detachable dinner plate 56 can be clamped on the bearing support plate 53 through the elastic clamping piece 57, so that people can conveniently take off and clean the dinner plate 62 at any time, when people need to adjust the angle of the leg blocking plate 62, people press the second press button 65 to enable the second press button 65 to push the first inclined fluted disc 63 to slide, so that the first inclined fluted disc 63 is separated from the second inclined fluted disc 64, at this time, people can turn over the leg blocking plate 62 downwards, after the adjustment is completed, the first inclined fluted disc 63 is meshed with the second inclined fluted disc 64 by loosening the second press button 65, so that the limitation on the leg blocking plate 62, and people are when upwards adjusting fender leg board 62, because the tooth of first oblique fluted disc 63 and second oblique fluted disc 64 is the slope form, make people directly upwards rotate fender leg board 62 and make the inclined plane of the inclined plane extrusion of the tooth of second oblique fluted disc 64 promptly the inclined plane of the tooth of first oblique fluted disc 63, make first oblique fluted disc 63 break away from with second oblique fluted disc 64, and then can adjust, the inserted block 8 that sets up on bearing tray 53 cooperatees with the H-shaped piece 9 that sets up on the first U-shaped pole 21, make people when this device is folded to needs, can take off the card from fixed plate 51 and place on first U-shaped pole 21 bearing tray 53, floor area has been saved, and spacing tooth 26, turn button 33, draw handle 54 and first oblique fluted disc 63 all to reset through the spring.

Example two

Referring to fig. 14 and 15, the backrest mechanism 4 includes a second toothed plate 48, a second backrest plate 49, a mounting groove 410, a second handle 411, a plastic elastic strip 412, a connecting piece 413, and a second limit post 414, the second toothed plate 48 is symmetrically fixed at one end of the inner wall of the seat plate 1, the two second toothed plates 48 are rotatably connected with the second backrest plate 49 through a shaft pin, the mounting groove 410 is formed at one side of the second backrest plate 49 close to the table mechanism 5, the second handle 411 is slidably connected to the upper end of the inner wall of the mounting groove 410, the bottom of the second handle 411 extends out to one side of the backrest far from the table mechanism 5, the plastic elastic strip 412 is symmetrically fixed at one side of the second handle 411, the connecting piece 413 is fixed at the upper end of the two plastic elastic strips 412, the connecting piece 413 is slidably connected to the inner wall of the mounting groove 410, the second limit post 414 is fixed at one end of the plastic elastic strip 412 close to the second toothed, and the spacing post 414 of second and the tooth's socket joint on the second toothed plate 48, through pulling second handle 411, and then drive plastics elasticity strip 412 and slide in mounting groove 410, make plastics elasticity strip 412 can pull spacing post 414 of second and slide, make spacing post 414 roll-off second toothed plate 48 of second, people can overturn second back board 49 this moment, adjust the angle of second back board 49, after the regulation is accomplished, people loosen second handle 411, make second handle 411 reset under the elasticity of spring, make spacing post 414 of second block again into the tooth's socket of second toothed plate 48, accomplish spacingly.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A high chair for babies, comprising a seat plate (1), characterized in that: seat (1) below is equipped with supporting mechanism (2), elevating system (3) are installed to supporting mechanism (2) both ends symmetry, two elevating system (3) respectively with seat (1) both sides fixed connection, back mechanism (4) are installed to seat (1) inner wall one end, dining table mechanism (5) are installed to the one end that back mechanism (4) were kept away from at seat (1) top, the one end of keeping away from back mechanism (4) bottom seat (1) is installed and is kept off leg mechanism (6).

2. A highchair for infants according to claim 1, characterized in that: the supporting mechanism (2) comprises a first U-shaped rod (21), a second U-shaped rod (22), a first rotating block (23), a second rotating block (24), a first clamping groove (25), a limiting tooth (26), a first pressing button (27), a top column (28), a protective cover (29) and an anti-skidding sleeve (210), the first U-shaped rod (21) and the second U-shaped rod (22) are symmetrically arranged below the seat plate (1), the first rotating block (23) is fixed at each end of the first U-shaped rod (21), the second rotating block (24) is fixed at each end of the second U-shaped rod (22), the first rotating block (23) is rotatably connected with the second rotating block (24) through a shaft pin, the first clamping groove (25) is formed in one side, close to each other, of the first rotating block (23) and the second rotating block (24), the limiting tooth (26) is clamped between the two first clamping grooves (25), and the first sliding pressing button (27) is connected to one side, far away from the first rotating block (23), of the second rotating block (24), first press button (27) are close to one side equidistance of first commentaries on classics piece (23) and are fixed with fore-set (28), and fore-set (28) pass second commentaries on classics piece (24) and spacing tooth (26) contact, the second commentaries on classics piece (24) outside is fixed with protection casing (29), first U-shaped pole (21) and second U-shaped pole (22) bottom all are fixed with antiskid cover (210).

3. A highchair for infants according to claim 2, characterized in that: elevating system (3) are including adjusting shell (31), turn-trough (32), turn-button (33), spacing piece (34) and second draw-in groove (35), second U-shaped pole (22) both ends symmetry sliding connection has adjusting shell (31), turn-trough (32) have been seted up to adjusting shell (31) one side, turn-trough (32) inner wall rotates through the pivot and is connected with turn-button (33), turn-button (33) inner wall joint has spacing piece (34), the impartial distance in second U-shaped pole (22) both ends is seted up with spacing piece (34) matched with second draw-in groove (35), and spacing piece (34) one end and second draw-in groove (35) joint, two adjust shell (31) respectively with seat (1) both sides fixed connection.

4. A highchair for infants according to claim 3, characterized in that: the backrest mechanism (4) comprises a first toothed plate (41), a first backrest plate (42), a sliding seat (43), a first handle (44), a U-shaped pull rod (45), a first limiting column (46) and a limiting plate (47), wherein the first toothed plate (41) is symmetrically fixed at one end of the inner wall of the seat plate (1), the first backrest plate (42) is rotationally connected between the two first toothed plates (41) through a shaft pin, the sliding seat (43) is fixed at the upper end of one side, away from the dining table mechanism (5), of the first backrest plate (42), the first handle (44) is slidably connected to one side of the sliding seat (43), the U-shaped pull rod (45) is connected to one end of the first handle (44) in a clamped mode, the first limiting columns (46) are fixed at two ends of the U-shaped pull rod (45), the first limiting columns (46) are connected to tooth grooves on the first toothed plate (41) in a clamped mode, the limiting plate (47) is symmetrically fixed at one end, close to the first limiting column (46), of the first toothed plate (42), and two ends of the U-shaped pull rod (45) are connected with the limiting plate (47) in a sliding way.

5. The highchair for infants according to claim 4, wherein: the backrest mechanism (4) comprises a second toothed plate (48), a second backrest plate (49), a mounting groove (410), a second handle (411), a plastic elastic strip (412), a connecting piece (413) and a second limiting column (414), wherein the second toothed plate (48) is symmetrically fixed at one end of the inner wall of the seat plate (1), the second toothed plate (49) is connected between the second toothed plate (48) in a rotating mode through a shaft pin, the mounting groove (410) is formed in one side, close to the dining table mechanism (5), of the second backrest plate (49), the second handle (411) is connected to the upper end of the inner wall of the mounting groove (410) in a sliding mode, the bottom of the second handle (411) extends out of one side, far away from the dining table mechanism (5), the plastic elastic strip (412) is symmetrically fixed on one side of the second handle (411), the connecting piece (413) is fixed at the upper end of the plastic elastic strip (412), and connecting piece (413) and mounting groove (410) inner wall sliding connection, the one end that plastics elasticity strip (412) are close to second pinion rack (48) is fixed with spacing post of second (414), and spacing post of second (414) and the tooth's socket joint on second pinion rack (48).

6. A highchair for infants according to claim 5, characterized in that: the dining table mechanism (5) comprises a fixing plate (51), a limiting groove (52), a bearing supporting plate (53), a pull handle (54), a clamping block (55), a detachable dinner plate (56) and an elastic card (57), wherein the fixing plate (51) is symmetrically fixed at one end of the top of the seat plate (1) far away from the backrest mechanism (4), the limiting groove (52) is formed in one side of the fixing plate (51) at equal intervals, the two ends of the fixing plate (51) are connected with the bearing supporting plate (53) in a sliding manner, the pull handle (54) is connected with the end close to the fixing plate (51) in a sliding manner, the clamping block (55) is fixed at one side of the pull handle (54) close to the limiting groove (52), the clamping block (55) is clamped with the limiting groove (52), the detachable dinner plate (56) is clamped on the upper surface of the bearing supporting plate (53), and the elastic card (57) is symmetrically fixed at, and the detachable dinner plate (56) is clamped with the bearing supporting plate (53) through an elastic clamping piece (57).

7. The highchair for infants according to claim 6, wherein: the leg blocking mechanism (6) comprises a fixed cylinder (61), a leg blocking plate (62), a first inclined fluted disc (63), a second inclined fluted disc (64) and a second pressing button (65), one end of the bottom of the seat plate (1) far away from the backrest mechanism (4) is fixed with a fixed cylinder (61), the two fixed cylinders (61) are rotationally connected with leg blocking plates (62) through shaft pins, a first inclined fluted disc (63) is clamped on the inner wall of the fixed cylinder (61), a second inclined fluted disc (64) matched with the first inclined fluted disc (63) is connected to the inner side of one end, close to the fixed cylinder (61), of the leg blocking plate (62) in a sliding manner, the first inclined fluted disc (63) is clamped with the second inclined fluted disc (64), the outer side of one end of the leg baffle plate (62) close to the fixed cylinder (61) is connected with a second pressing button (65) in a sliding way, one end of the second pressing button (65) penetrates through the second inclined fluted disc (64) to be in contact with the first inclined fluted disc (63).

8. A highchair for infants according to claim 1, characterized in that: and an anti-slip column (7) is clamped at one end of the inner wall of the seat plate (1) close to the leg blocking mechanism (6).

9. The highchair for infants according to claim 6, wherein: bearing plate (53) inside symmetry is fixed with inserted block (8), first U-shaped pole (21) both ends symmetry is fixed can have with inserted block (8) matched with H-shaped piece (9), and inserted block (8) are pegged graft with H-shaped piece (9).

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