CN218960399U

CN218960399U - Child learning chair with adjustable seat height and seat depth

Info

Publication number: CN218960399U
Application number: CN202223279211.2U
Authority: CN
Inventors: 李立清
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-05-05
Anticipated expiration: 2032-12-08

Abstract

The utility model relates to the field of children furniture, and particularly discloses a children study chair with adjustable seat height and seat depth, which comprises a seat plate, a fixing frame, an underframe and a backrest plate, wherein two fixing frames are arranged side by side, and the seat plate is arranged on the upper side of the fixing frame; the whole underframe is in a strip-shaped structure, and the underframe is matched with the fixing frame; the inner side of the fixed frame is provided with movable chair legs, the underframe is vertically provided with fixed chair legs, the movable chair legs are connected with the fixed chair legs, and the movable chair legs are arranged in a sliding manner along the length direction of the fixed chair legs; the back board is arranged on the upper side of the seat board and is connected with the fixing frame through the connecting frame; a sliding plate is arranged at the lower side of the seat plate, a sliding belt is arranged between the two fixing frames, and the sliding plate is arranged in a sliding manner along the length direction of the sliding belt; the learning chair provided by the utility model has two groups of adjusting structures, can flexibly adjust the seat height and the seat depth, and is suitable for children in different age groups.

Description

Child learning chair with adjustable seat height and seat depth

Technical Field

The utility model relates to the field of children furniture, in particular to a children learning chair with adjustable seat height and seat depth.

Background

The body of the child is continuously developed, the over-high and over-low chairs have adverse effects on the body development of the child, the child bends over, the humpback is short-sighted and the like, and the first leg of the child is that the legs of the child must be ensured to be at right angles or slightly smaller than 90 degrees when the child is correctly in a sitting position. The feet are suspended or not put on the ground, the gravity center can be completely fallen on the thighs and buttocks, blood vessels are pressed, blood circulation is influenced, the children have uncomfortable feeling, the postures are inevitably changed, the correct sitting postures cannot be kept, meanwhile, the children are easy to fatigue, the mental concentration is influenced, the children shake when sitting, and the lumbar spine of the children is also easy to damage.

At present, most of study chairs are adjusted in a mode of fixing by screws or metal sliding rods, and the adjustment mode is inconvenient for children to operate, and needs other people to cooperate to complete the adjustment process, so that the chair is inconvenient to use.

Disclosure of Invention

The utility model aims to provide a child learning chair with adjustable seat height and seat depth, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the child learning chair with the seat height and the seat depth adjustable comprises a seat plate, a fixing frame, an underframe and a backrest plate, wherein two fixing frames are arranged side by side, and the seat plate is arranged on the upper side of the fixing frame; the whole underframe is in a strip-shaped structure, and the underframe is matched with the fixing frame; the inner side of the fixed frame is provided with movable chair legs, the underframe is vertically provided with fixed chair legs, the movable chair legs are connected with the fixed chair legs, and the movable chair legs are arranged in a sliding manner along the length direction of the fixed chair legs; the back board is arranged on the upper side of the seat board and is respectively connected with the two fixing frames through the two connecting frames; the lower side of the seat board is provided with a sliding plate, a sliding belt is arranged between the two fixing frames, and the sliding plate is arranged in a sliding manner along the length direction of the sliding belt.

Preferably, a first chute is arranged on the inner side of the movable chair leg, and a first gear box is transversely arranged at the top end of the first chute; the first sliding groove is internally provided with a first screw rod and a first sliding block, the first sliding block is matched and sleeved on the first screw rod, the first screw rod is connected with the output end of the first gear box, and the first sliding block is fixedly connected with the fixed chair leg.

Preferably, the input end of the first gear box is provided with a rotary table, the rotary table is provided with regular hexagon adjusting holes, the first gear boxes on the two groups of movable chair legs are kept flush, and regular hexagon torsion bars are inserted into the through holes of the first gear boxes and the second gear boxes.

Preferably, two auxiliary frames are arranged between the two fixing frames side by side, a square frame structure is enclosed between the auxiliary frames and the fixing frames, two ends of the sliding belt are fixedly connected with the two auxiliary frames, and the sliding belt and the fixing frames are arranged in parallel.

Preferably, the sliding belt is provided with a second sliding groove, and a second gear box is arranged at one end of the second sliding groove far away from the backboard; a second screw rod and a second sliding block are arranged in the second sliding groove, the second sliding block is matched and sleeved on the second screw rod, and the second screw rod is connected with the output end of the second gear box; the input of second gear box is provided with the carousel, is provided with regular hexagon's regulation hole on the carousel, is provided with regular hexagon's through-hole in the slide downside correspondence, second slider and slide fixed connection.

Preferably, the backboard is arranged to be of an arc-shaped structure, and a reinforcing frame is arranged between the two bottom frames.

Compared with the prior art, the utility model has the beneficial effects that: the learning chair provided by the utility model has two groups of adjusting structures, can flexibly adjust the seat height and the seat depth, and is suitable for children in different age groups; the adjusting mode is to drive the gear box to work by twisting the torsion bar, so that the screw rod and the sliding block are meshed to adjust the height, and the adjusting mode can be used by a single person for children, so that the adjusting mode is more convenient to use.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic view of the connection of the movable leg with the fixed leg according to the present utility model;

FIG. 3 is a schematic view of the movable leg structure of the present utility model;

FIG. 4 is a second schematic diagram of the structure of the present utility model;

FIG. 5 is a schematic view of a slider structure according to the present utility model;

reference numerals in the drawings: 1. a seat plate; 2. a fixing frame; 3. a chassis; 4. a movable chair leg; 5. fixing chair legs; 6. a backboard; 7. a connecting frame; 8. a reinforcing frame; 9. a first chute; 10. a first gear box; 11. a first screw rod; 12. a first slider; 13. a slide plate; 14. an auxiliary frame; 15. a slide belt; 16. a torsion bar; 17. a second chute; 18. a second gear box; 19. a second screw rod; 20. and a second slider.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-5, the present utility model provides a technical solution: the child learning chair with the seat height and the seat depth adjustable comprises a seat board 1, a fixing frame 2, a bottom frame 3 and a backrest board 6, wherein two fixing frames 2 are arranged side by side, and the seat board 1 is arranged on the upper side of the fixing frame 2; the whole underframe 3 is in a strip-shaped structure, and the underframe 3 is matched with the fixing frame 2; the inner side of the fixed frame 2 is provided with movable chair legs 4, the underframe 3 is vertically provided with fixed chair legs 5, the movable chair legs 4 are connected with the fixed chair legs 5, and the movable chair legs 4 are arranged in a sliding manner along the length direction of the fixed chair legs 5; the backrest plate 6 is arranged on the upper side of the seat plate 1, and the backrest plate 6 is respectively connected with the two fixing frames 2 through the two connecting frames 7; the lower side of the seat board 1 is provided with a sliding plate 13, a sliding belt 15 is arranged between the two fixing frames 2, and the sliding plate 13 is arranged in a sliding manner along the length direction of the sliding belt 15.

Further, a first chute 9 is arranged on the inner side of the movable chair leg 4, and a first gear box 10 is transversely arranged at the top end of the first chute 9; the first sliding groove 9 is internally provided with a first screw rod 11 and a first sliding block 12, the first sliding block 12 is sleeved on the first screw rod 11 in a matched mode, the first screw rod 11 is connected with the output end of the first gear box 10, and the first sliding block 12 is fixedly connected with the fixed chair leg 5.

Further, the input end of the first gear box 10 is provided with a turntable, regular hexagon adjusting holes are formed in the turntable, the first gear boxes 10 on the two groups of movable chair legs 4 are kept flush, and regular hexagon torsion bars 16 are inserted into through holes of the two groups of movable chair legs.

Further, two auxiliary frames 14 are arranged between the two fixing frames 2 side by side, a square frame structure is enclosed between the auxiliary frames 14 and the fixing frames 2, two ends of the sliding belt 15 are fixedly connected with the two auxiliary frames 14, and the sliding belt 15 and the fixing frames 2 are arranged in parallel.

Further, a second chute 17 is provided on the sliding belt 15, and a second gear box 18 is installed at one end of the second chute 17 away from the backboard 6; a second screw rod 19 and a second sliding block 20 are arranged in the second sliding groove 17, the second sliding block 20 is matched and sleeved on the second screw rod 19, and the second screw rod 19 is connected with the output end of the second gear box 18; the input end of the second gear box 18 is provided with a turntable, a regular hexagon adjusting hole is arranged on the turntable, a regular hexagon through hole is correspondingly arranged on the lower side of the sliding belt 15, and the second sliding block 20 is fixedly connected with the sliding plate 13.

Further, the back board 6 is provided with an arc structure, and a reinforcing frame 8 is arranged between the two bottom frames 3.

Working principle: in the actual use process, the two adjustment modes are all described below respectively:

seat height adjusting process: by twisting the torsion bar 16, the two ends of the torsion bar 16 penetrate into the rotary table at the input end of the first gear box 10, and the rotary table is clamped by the regular hexagon structure of the torsion bar 16, so that the rotary table is driven to rotate, and power is provided for the first gear box 10; the first gear box 10 drives the first screw rod 11 connected with the lower side to rotate, and the first screw rod 11 is matched with the first sliding block 12 sleeved on the first screw rod 11, so that the first sliding block 12 moves in the first sliding groove 9 along the first screw rod 11; the first sliding block 12 is fixedly connected with the fixed chair leg 5, so that the movable chair leg 4 and the fixed chair leg 5 are mutually separated in the height direction, the bottom end of the fixed chair leg 5 is fixed on the underframe 3, and the position on the ground is unchanged, and therefore the movable chair leg 4 drives the fixed frame 2 and the seat board 1 connected with the movable chair leg 4 to move up and down, and the purpose of changing the height is achieved.

Meanwhile, two ends of the torsion bar 16 are inserted into the two groups of first gear boxes 10, so that the two groups of first gear boxes 10 can be kept to synchronously move, and the aim of synchronous adjustment is fulfilled.

And (3) seat depth adjusting process: the torsion bar 16 is mounted in a through hole in the turntable and is extractable from the through hole. The top end of the torsion bar 16 is clamped into a regular hexagon through hole at the lower side of the sliding belt 15 and is connected with a rotary table at the input end of the second gear box 18, so that the rotary table is driven to rotate, and power is provided for the second gear box 18. The second gear box 18 drives the second screw rod 19 connected with the second gear box to rotate, and the second screw rod 19 is matched with the second sliding block 20 sleeved on the second screw rod 19, so that the second sliding block 20 moves in the second sliding groove 17 along the second screw rod 19. The second sliding block 20 is fixedly connected with the sliding plate 13, and the sliding plate 13 drives the seat plate 1 to slide in the horizontal direction, so that the purpose of adjusting the seat depth is achieved.

The whole sliding belt 15 is fixedly connected with the fixed frame 2 through the auxiliary frame 14, and the position of the sliding belt in the horizontal direction cannot be changed, so that the whole stability is ensured.

The operation process is realized by twisting the torsion bar 16, and the operation can be performed by one hand, so that the child can use the torsion bar conveniently.

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

Claims

1. The utility model provides a children study chair of adjustable seat height and seat depth which characterized in that: the novel chair comprises a seat board (1), a fixing frame (2), an underframe (3) and a backrest board (6), wherein two fixing frames (2) are arranged side by side, and the seat board (1) is arranged on the upper side of the fixing frame (2); the whole underframe (3) is in a strip-shaped structure, and the underframe (3) is matched with the fixing frame (2); the movable chair legs (4) are arranged on the inner side of the fixed frame (2), the fixed chair legs (5) are vertically arranged on the underframe (3), the movable chair legs (4) are connected with the fixed chair legs (5) mutually, and the movable chair legs (4) are arranged in a sliding manner along the length direction of the fixed chair legs (5); the back board (6) is arranged on the upper side of the seat board (1), and the back board (6) is respectively connected with the two fixing frames (2) through the two connecting frames (7); the sliding plate is characterized in that a sliding plate (13) is arranged on the lower side of the seat plate (1), a sliding belt (15) is arranged between the two fixing frames (2), and the sliding plate (13) is arranged in a sliding mode along the length direction of the sliding belt (15).

2. A child learning chair with adjustable seat height and depth as claimed in claim 1, wherein: a first sliding groove (9) is formed in the inner side of the movable chair leg (4), and a first gear box (10) is transversely arranged at the top end of the first sliding groove (9); the novel chair is characterized in that a first screw rod (11) and a first sliding block (12) are arranged in the first sliding groove (9), the first sliding block (12) is sleeved on the first screw rod (11) in a matched mode, the first screw rod (11) is connected with the output end of the first gear box (10), and the first sliding block (12) is fixedly connected with the fixed chair leg (5).

3. A child learning chair with adjustable seat height and depth as claimed in claim 2, wherein: the input end of the first gear box (10) is provided with a rotary table, a regular hexagon adjusting hole is formed in the rotary table, the first gear boxes (10) on the two groups of movable chair legs (4) are kept flush, and a regular hexagon torsion bar (16) is inserted into through holes of the first gear boxes and the second gear boxes.

4. A child learning chair with adjustable seat height and depth as claimed in claim 1, wherein: two auxiliary frames (14) are arranged between the two fixing frames (2) side by side, a square frame-shaped structure is formed between the auxiliary frames (14) and the fixing frames (2), two ends of the sliding belt (15) are fixedly connected with the two auxiliary frames (14), and the sliding belt (15) and the fixing frames (2) are arranged in parallel.

5. A child learning chair with adjustable seat height and depth as claimed in claim 1, wherein: a second chute (17) is arranged on the sliding belt (15), and a second gear box (18) is arranged at one end of the second chute (17) far away from the backboard (6); a second screw rod (19) and a second sliding block (20) are arranged in the second sliding groove (17), the second sliding block (20) is sleeved on the second screw rod (19) in a matched mode, and the second screw rod (19) is connected with the output end of the second gear box (18); the input end of the second gear box (18) is provided with a rotary table, a regular hexagon adjusting hole is formed in the rotary table, a regular hexagon through hole is correspondingly formed in the lower side of the sliding belt (15), and the second sliding block (20) is fixedly connected with the sliding plate (13).

6. A child learning chair with adjustable seat height and depth as claimed in claim 1, wherein: the back board (6) is of an arc-shaped structure, and a reinforcing frame (8) is arranged between the two underframes (3).