CN214548117U

CN214548117U - Tablet chair convenient to height-adjusting

Info

Publication number: CN214548117U
Application number: CN202022985639.3U
Authority: CN
Inventors: 王柄淇
Original assignee: Beijing Zhenghong Tianxing Furniture Co ltd
Current assignee: Beijing Zhenghong Tianxing Furniture Co ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-11-02
Anticipated expiration: 2030-12-12

Abstract

A tablet chair convenient for adjusting the height comprises a base, an adjusting component, a seat plate, a chair back and a stop block; the adjusting assembly comprises a guide sleeve, a guide pillar, a first gear, a second gear, a first shaft, a second shaft, a third gear, a fourth gear, a first conical gear, a second conical gear, a fixing plate, a bearing, a third shaft and a turntable; in the utility model, the rotation of the first conical gear is driven by the rotation of the turntable, and then the second conical gear is driven to rotate, so that the first shaft is driven to rotate by the rotation of the first shaft, and the third gear and the fourth gear drive the second gear to rotate, so that the guide pillar is driven to ascend, the height of the seat plate is adjusted, the height of students at different ages is adapted, comfortable learning environments are created for the students, the operation is simple, and the structure is reliable; the chair back in the device can rotate, and can be folded when not in use, thereby being convenient for stacking and collecting.

Description

Tablet chair convenient to height-adjusting

Technical Field

The utility model relates to a school's communal facility field especially relates to a tablet chair convenient to height-adjusting.

Background

The school chair is a necessary product for school study and life, the leg height of the existing school chair is fixed and cannot be adjusted, the school chair is simple in structure, firm and durable, the school adopts a uniform distribution and uniform use mode, the height of the school chair can be selected only in a compromise mode, the school chair is distributed to students in a generally applicable mode, and the problem that some children with larger physique or smaller children are inconvenient to use is caused. In order to protect the health of children and create a comfortable learning environment for children, a height-adjustable tablet chair is developed, and the purpose of height adjustment is achieved by setting a positioning bolt on the leg of the tablet chair. The positioning holes are provided with 2-3 gears, the positioning bolts are inserted into different positioning holes, and the height of the tablet chair is changed accordingly. Although the mode solves the problem of adjusting the height of a certain tablet chair, the adjustment process can be only carried out according to set gears, the universal application can be realized, and the use requirement of each student can not be accurately met.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

In order to solve the technical problems existing in the background technology, the utility model provides a tablet chair with the height convenient to adjust, which can adjust the height of a seat plate, adapt to the heights of students at different ages, create comfortable learning environment for the students, and has simple operation and reliable structure; the chair back in the device can rotate, and can be folded when not in use, thereby being convenient for stacking and collecting.

(II) technical scheme

In order to solve the problems, the utility model provides a tablet chair with a height convenient to adjust, which comprises a base, an adjusting component, a seat plate, a chair back and a stop block; the adjusting component is arranged at the upper end of the base, and the upper end of the adjusting component is provided with a seat plate; the lower end of the chair back is rotatably arranged at one end of the seat plate and is provided with a stop block; the adjusting assembly comprises a guide sleeve, a guide pillar, a first gear, a second gear, a first shaft, a second shaft, a third gear, a fourth gear, a first conical gear, a second conical gear, a fixing plate, a bearing, a third shaft and a turntable; two groups of guide sleeves are arranged on the base; two groups of guide pillars are respectively arranged at the upper ends of the two groups of guide sleeves, the lower ends of the guide pillars are connected with the inner walls of the guide sleeves in a sliding manner, the upper ends of the guide pillars are connected with the lower ends of the seat plate, and the outer side wall of one side of each guide pillar is provided with gear teeth which are linearly arranged along the vertical direction; the first gear is rotatably arranged on one side of the group of guide sleeves; the second gear is rotatably arranged on one side of the other group of guide sleeves; an opening is formed in the side wall of the guide sleeve; the first gear and the second gear penetrate through the opening in the guide sleeve and are meshed with the gear teeth on the guide pillar; one end of the first shaft is connected with the rotation center of the first gear; one end of the second shaft is connected with the rotation center of the second gear; the third gear is sleeved on the first shaft; the fourth gear is sleeved on the second shaft; the third gear is meshed with the fourth gear; a fixed plate is arranged on the guide sleeve close to the first gear; a bearing is arranged on the fixed plate; the outer ring of the bearing is connected with the fixed plate; the third shaft penetrates through the bearing and is connected with the inner ring of the bearing, a turntable is arranged at one end of the third shaft, and a first conical gear is arranged at the other end of the third shaft; the conical gear is sleeved on the first shaft; the first conical gear is meshed with the second conical gear.

Preferably, the side wall of the guide post is provided with a sliding groove; a sliding rail is arranged on the inner side wall of the guide sleeve at a position corresponding to the sliding chute; the slide rail slides and sets up in the inside of spout.

Preferably, the upper end of the seat plate is provided with a spongy cushion I; a sponge cushion II is arranged on one side of the chair back.

Preferably, the lower end of the base is provided with a support leg.

Preferably, the lower end of the supporting leg is provided with a first rubber pad.

Preferably, the turntable is rotatably provided with a handle.

Preferably, a second rubber pad is arranged at the position where the stop block is contacted with the seat plate.

The above technical scheme of the utility model has following profitable technological effect:

in the utility model, the rotation of the first conical gear is driven by the rotation of the turntable, and then the second conical gear is driven to rotate, so that the first shaft is driven to rotate by the rotation of the first shaft, and the third gear and the fourth gear drive the second gear to rotate, so that the guide pillar is driven to ascend, the height of the seat plate is adjusted, the height of students at different ages is adapted, comfortable learning environments are created for the students, the operation is simple, and the structure is reliable; the chair back in the device can rotate, and can be folded when not in use, thereby being convenient for stacking and collecting.

Drawings

Fig. 1 is a schematic structural view of a tablet chair convenient for height adjustment.

Fig. 2 is a top cross-sectional view of the tablet chair convenient for height adjustment according to the present invention.

Fig. 3 is a partial enlarged view of a position a of the tablet chair with height adjustable.

Reference numerals: 1. a base; 2. an adjustment assembly; 3. a seat plate; 4. a chair back; 5. a stopper; 6. a guide sleeve; 7. a guide post; 8. a first gear; 9. a second gear; 10. a first shaft; 11. a second shaft; 12. a third gear; 13. a fourth gear; 14. a first conical gear; 15. a second bevel gear; 16. a fixing plate; 17. a bearing; 18. a third shaft; 19. a turntable; 20. a chute; 21. a slide rail; 22. a first sponge cushion; 23. a second sponge cushion; 24. a support leg; 25. a handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the tablet chair convenient for height adjustment provided by the present invention comprises a base 1, an adjusting component 2, a seat plate 3, a chair back 4 and a stop block 5; the adjusting component 2 is arranged at the upper end of the base 1, and the upper end is provided with a seat plate 3; the lower end of the chair back 4 is rotatably arranged at one end of the seat plate 3, and is provided with a stop block 5; the adjusting component 2 comprises a guide sleeve 6, a guide post 7, a first gear 8, a second gear 9, a first shaft 10, a second shaft 11, a third gear 12, a fourth gear 13, a first bevel gear 14, a second bevel gear 15, a fixed plate 16, a bearing 17, a third shaft 18 and a turntable 19; two groups of guide sleeves 6 are arranged on the base 1; two groups of guide posts 7 are respectively arranged at the upper ends of the two groups of guide sleeves 6, the lower ends of the guide posts are connected with the inner walls of the guide sleeves 6 in a sliding manner, the upper ends of the guide posts are connected with the lower ends of the seat plates 3, and the outer side wall of one side of each guide post 7 is provided with gear teeth which are linearly arranged along the vertical direction; the first gear 8 is rotatably arranged on one side of the group of guide sleeves 6; the second gear 9 is rotatably arranged on one side of the other group of guide sleeves 6; an opening is arranged on the side wall of the guide sleeve 6; the first gear 8 and the second gear 9 both penetrate through the opening on the guide sleeve 6 and are meshed with the gear teeth on the guide post 7; one end of the first shaft 10 is connected with the rotating center of the first gear 8; one end of the second shaft 11 is connected with the rotation center of the second gear 9; the third gear 12 is sleeved on the first shaft 10; the fourth gear 13 is sleeved on the second shaft 11; the third gear 12 is meshed with the fourth gear 13; a fixing plate 16 is arranged on the guide sleeve 6 close to the first gear 8; a bearing 17 is arranged on the fixed plate 16; the outer ring of the bearing 17 is connected with the fixed plate 16; the third shaft 18 penetrates through the bearing 17 and is connected with the inner ring of the bearing 17, one end of the third shaft is provided with a turntable 19, and the other end of the third shaft is provided with a first bevel gear 14; the second bevel gear 15 is sleeved on the first shaft 10; the first bevel gear 14 is meshed with the second bevel gear 15.

In an alternative embodiment, the side wall of the guide post 7 is provided with a sliding groove 20; a slide rail 21 is arranged on the inner side wall of the guide sleeve 6 at a position corresponding to the chute 20; the slide rail 21 is slidably disposed inside the slide groove 20.

In an alternative embodiment, a spongy cushion 22 is arranged at the upper end of the seat plate 3; a second sponge cushion 23 is arranged on one side of the chair back 4.

In an alternative embodiment, the lower end of the base 1 is provided with feet 24.

In an alternative embodiment, the lower end of the leg 24 is provided with a rubber pad one.

In an alternative embodiment, a handle 25 is rotatably mounted on the turntable 19.

In an alternative embodiment, a second rubber pad is arranged at the position where the stop block 5 is contacted with the seat plate 3.

In the utility model, the working principle of the device is that the rotary table 19 is rotated, the first conical gear 14 is driven to rotate by the third shaft 18, the first shaft 10 is driven to rotate by driving the second conical gear 15 to rotate, the first shaft 10 is driven to rotate by driving the first gear 8, and the second gear 9 is driven to rotate by the third gear 12 and the fourth gear 13, so that the guide pillar 7 is driven to ascend, and the height of the seat plate 3 is adjusted; the chair back 4 can rotate and can be folded when not in use.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A tablet chair convenient for adjusting the height is characterized by comprising a base (1), an adjusting component (2), a seat plate (3), a chair back (4) and a stop block (5); the adjusting component (2) is arranged at the upper end of the base (1), and the upper end is provided with a seat plate (3); the lower end of the chair back (4) is rotatably arranged at one end of the seat plate (3) and is provided with a stop block (5);

the adjusting assembly (2) comprises a guide sleeve (6), a guide pillar (7), a first gear (8), a second gear (9), a first shaft (10), a second shaft (11), a third gear (12), a fourth gear (13), a first conical gear (14), a second conical gear (15), a fixing plate (16), a bearing (17), a third shaft (18) and a turntable (19); two groups of guide sleeves (6) are arranged on the base (1); two groups of guide posts (7) are respectively arranged at the upper ends of the two groups of guide sleeves (6), the lower ends of the guide posts are connected with the inner walls of the guide sleeves (6) in a sliding manner, the upper ends of the guide posts are connected with the lower ends of the seat plates (3), and the outer side wall of one side of each guide post (7) is provided with gear teeth which are linearly arranged along the vertical direction; the first gear (8) is rotatably arranged on one side of the group of guide sleeves (6); the second gear (9) is rotatably arranged on one side of the other group of guide sleeves (6); an opening is arranged on the side wall of the guide sleeve (6); the first gear (8) and the second gear (9) both penetrate through the opening on the guide sleeve (6) and are meshed with the gear teeth on the guide post (7); one end of the first shaft (10) is connected with the rotating center of the first gear (8); one end of the second shaft (11) is connected with the rotation center of the second gear (9); the third gear (12) is sleeved on the first shaft (10); a fourth gear (13) is sleeved on the second shaft (11); the third gear (12) is meshed with the fourth gear (13); a fixed plate (16) is arranged on the guide sleeve (6) close to the first gear (8); a bearing (17) is arranged on the fixed plate (16); the outer ring of the bearing (17) is connected with the fixed plate (16); the third shaft (18) penetrates through the bearing (17) and is connected with the inner ring of the bearing (17), one end of the third shaft is provided with a turntable (19), and the other end of the third shaft is provided with a first bevel gear (14); the second bevel gear (15) is sleeved on the first shaft (10); the first conical gear (14) is meshed with the second conical gear (15).

2. The tablet chair convenient for adjusting the height according to claim 1, wherein the side wall of the guide post (7) is provided with a sliding groove (20); a slide rail (21) is arranged on the inner side wall of the guide sleeve (6) at a position corresponding to the chute (20); the slide rail (21) is arranged inside the slide groove (20) in a sliding manner.

3. The tablet chair convenient for adjusting the height according to claim 1, wherein a first sponge cushion (22) is arranged at the upper end of the seat plate (3); a sponge cushion II (23) is arranged on one side of the chair back (4).

4. The tablet chair convenient for height adjustment according to claim 1, wherein the lower end of the base (1) is provided with a foot (24).

5. The tablet chair convenient for adjusting the height as claimed in claim 4, wherein the lower end of the supporting leg (24) is provided with a rubber pad I.

6. Tablet chair with easy height adjustment according to claim 1, characterized in that the turntable (19) is provided with a handle (25) in a rotatable manner.

7. The tablet chair convenient for adjusting the height as claimed in claim 1, wherein a second rubber pad is arranged at the position where the stop block (5) contacts with the seat plate (3).