CN217658868U

CN217658868U - Study chair with adjustable backrest

Info

Publication number: CN217658868U
Application number: CN202221565121.7U
Authority: CN
Inventors: 骆叶佳
Original assignee: Changzhou Jushita Electronics Co ltd
Current assignee: Changzhou Jushita Electronics Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-10-28
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a study chair with adjustable back, the on-line screen storage device comprises a base, first regulation pole is installed at the top of base, the lateral wall cover of first regulation pole is equipped with the third control tube, logical groove has been seted up to one side of third control tube, the inside sliding connection who leads to the groove has the slider, the slider is kept away from one side of third control tube is fixed with the connecting rod, the connecting rod is kept away from the back is installed to the one end of slider, the lateral wall cover of connecting rod is equipped with the clamp plate, the clamp plate is the arc, one side laminating of clamp plate in one side of third control tube, the lateral wall threaded connection of connecting rod has the bolt, the top of slider with be provided with the spring leaf between the inner wall that leads to the groove, the third control tube with one side that the clamp plate is adjacent all bonds there is the slipmat, wherein, the device has solved the single problem of current chair functionality.

Description

Study chair with adjustable backrest

Technical Field

The utility model belongs to study chair technical direction, concretely relates to study chair with adjustable back.

Background

The study chair is used as a main school furniture in the study stage of students, and the unreasonable matching not only seriously affects the study experience of the students and reduces the study efficiency, but also affects the physical development of the students in the past. Therefore study chair need set up adjustable structure, and current study chair is through foraminiferous guide rail and the height of inserted bar cooperation regulation back and cushion, and the adjusting distance of this kind of mode is fixed, can not carry out high fine setting, greatly reduced study chair's functionality, this phenomenon becomes the problem that the skilled person had a high need to solve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a study chair with adjustable to current device a back to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a study chair with adjustable back, includes the base, first regulation pole is installed at the top of base, the lateral wall cover of first regulation pole is equipped with the third control tube, logical groove has been seted up to one side of third control tube, the inside sliding connection who leads to the groove has the slider, the slider is kept away from one side of third control tube is fixed with the connecting rod, the connecting rod is kept away from the back is installed to the one end of slider, the lateral wall cover of connecting rod is equipped with the clamp plate, the clamp plate is the arc, one side laminating of clamp plate in one side of third control tube, the lateral wall threaded connection of connecting rod has the bolt.

The utility model discloses explain further, the top of slider with be provided with the spring leaf between the inner wall that leads to the groove.

The utility model discloses explain further, the third control tube with one side that the clamp plate is adjacent all bonds and has the slipmat.

The utility model discloses explain further, the lateral wall cover of first regulation pole is equipped with first control tube, one side of first control tube is provided with the cushion.

The utility model discloses further explain, one side of first control tube is fixed with the second and adjusts the pole, the lateral wall cover that the second was adjusted the pole is equipped with the second control tube, the bottom of cushion with the top fixed connection of second control tube.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model is characterized in that the utility model,

(1) Through the arrangement of the third adjusting pipe, a user pulls the third adjusting pipe to slide on the outer side wall of the first adjusting rod, so that the heights of the third adjusting pipe and the backrest are adjusted, the user pushes the pressing plate to drive the connecting rod and the sliding block to move, the connecting rod drives the backrest to perform height fine adjustment, the user rotates the bolt, the bolt moves towards the direction close to the pressing plate on the outer side wall of the connecting rod, the pressing plate is arc-shaped, the pressing plate is extruded to deform, the bending state is changed into the straight state, the pressing plate is tightly pressed on one side of the third adjusting pipe to fix the position of the sliding block, so that the height fine adjustment of the backrest is completed, the user can perform backrest fine adjustment according to self requirements and the comfort level of the chair, and the functionality of the learning chair is greatly improved;

(2) Through being provided with the spring leaf, the slider slides when shifting up in the inside that leads to the groove, and the slider extrudees the spring leaf, and the spring leaf atress takes place to deform, and when needs recovered the initial condition with the back, the user only needs the counter-rotating bolt, and the bolt cancellation is to the extrusion of clamp plate, and the third regulating tube is kept away from to the clamp plate, and the elasticity of spring leaf promotes the slider and moves down rapidly in the inside that leads to the groove and resets, and the person of facilitating the use finely tunes the height of back once more.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic view of a connection structure of the third adjusting tube and the first adjusting rod of the present invention;

fig. 3 is an enlarged structural schematic diagram of the area a in fig. 2 according to the present invention;

in the figure: 1. a base; 2. a first adjusting lever; 3. a first regulating pipe; 4. a second adjusting lever; 5. a second regulating tube; 6. a cushion; 7. a third regulating tube; 8. a connecting rod; 9. a backrest; 10. a through groove; 11. a slider; 12. a spring plate; 13. pressing a plate; 14. a bolt; 15. a non-slip mat.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and 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.

Referring to fig. 1-3, the present invention provides a technical solution: a learning chair with an adjustable backrest comprises a base 1, a first adjusting rod 2 is installed at the top of the base 1, a third adjusting pipe 7 is sleeved on the outer side wall of the first adjusting rod 2, a through groove 10 is formed in one side of the third adjusting pipe 7, a sliding block 11 is connected inside the through groove 10 in a sliding mode, a connecting rod 8 is fixed on one side, away from the third adjusting pipe 7, of the sliding block 11, a backrest 9 is installed at one end, away from the sliding block 11, of the connecting rod 8, a pressing plate 13 is sleeved on the outer side wall of the connecting rod 8, the pressing plate 13 is arc-shaped, one side of the pressing plate 13 is attached to one side of the third adjusting pipe 7, a bolt 14 is connected to the outer side wall of the connecting rod 8 in a threaded mode, four universal wheels are installed at the bottom of the base 1, when the chair needs to move, the chair can be moved to a working place through the cooperation and rotation of the four universal wheels, when the backrest 9 is adjusted, a user pulls the third adjusting pipe 7 to slide on the outer side wall of the first adjusting rod 2, thereby adjusting the height of the third adjusting pipe 7, and fixing the position through the inserted link of the outer side wall of the third adjusting pipe 7, after the adjustment of the third adjusting pipe 7 is completed, the user pushes the pressing plate 13 to drive the connecting rod 8 and the sliding block 11 to move, the connecting rod 8 drives the backrest 9 to finely adjust the height, the sliding block 11 slides in the through groove 10, thereby guiding the connecting rod 8 and the backrest 9, so that the backrest 9 can only move in the up-down direction, the user rotates the bolt 14, because the bolt 14 is in threaded connection with the connecting rod 8, the bolt 14 moves in the outer side wall of the connecting rod 8 to the direction close to the pressing plate 13, because the pressing plate 13 is arc-shaped, the pressing plate 13 is deformed by extrusion, and is changed from the bending state to the straight state, the pressing plate 13 is pressed on one side of the third adjusting pipe 7 to fix the position of the sliding block 11, thereby completing the fine adjustment of the height of the backrest 9, the user can finely adjust the backrest 9 according to the self requirement and the comfort level, so that the functionality of the learning chair is greatly improved;

a spring piece 12 is arranged between the top of the sliding block 11 and the inner wall of the through groove 10, when the sliding block 11 slides upwards in the through groove 10, the sliding block 11 extrudes the spring piece 12, the spring piece 12 is stressed to deform, when the backrest 9 needs to be restored to an initial state, a user only needs to rotate the bolt 14 reversely, the bolt 14 cancels the extrusion of the pressing plate 13, the pressing plate 13 is far away from the third adjusting pipe 7, the elastic force of the spring piece 12 pushes the sliding block 11 to rapidly move downwards in the through groove 10 for restoration, and the user can conveniently fine-adjust the height of the backrest 9 again;

the anti-slip pads 15 are bonded on the adjacent sides of the third adjusting pipe 7 and the pressing plate 13, when the pressing plate 13 is stressed to deform and is attached to one side of the third adjusting pipe 7, the two anti-slip pads 15 on the adjacent sides of the third adjusting pipe 7 and the pressing plate 13 are attached to each other and extruded, so that the friction force between the third adjusting pipe 7 and the pressing plate 13 is greatly increased, and the stability of the third adjusting pipe 7 and the pressing plate 13 during attachment is improved;

the outer side wall of the first adjusting rod 2 is sleeved with a first adjusting tube 3, one side of the first adjusting tube 3 is provided with a cushion 6, when a user needs to adjust the cushion 6, the user only needs to pull the first adjusting tube 3 to slide on the outer side wall of the first adjusting rod 2, one side of the first adjusting tube 3 is provided with a support, the cushion 6 is connected with the support, when the height of the first adjusting tube 3 is changed, the first adjusting tube 3 drives the cushion 6 to adjust the height, and the position is fixed through an inserted link on the outer side wall of the first adjusting tube 3;

one side of first control tube 3 is fixed with the second and adjusts pole 4, the lateral wall cover that the second adjusted pole 4 was equipped with second control tube 5, the bottom of cushion 6 and the top fixed connection of second control tube 5, the support is formed by second regulation pole 4 and the combination of second control tube 5, the back is accomplished in the altitude mixture control of cushion 6, in order to further improve user's user demand, user pulling second control tube 5 slides at the lateral wall of second regulation pole 4, and the inserted bar through 5 lateral walls of second control tube carries out the rigidity, thereby adjust the distance between cushion 6 and the first control tube 3.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalent substitutions may be made to some of the features of the embodiments without departing from the spirit and scope of the invention.

Claims

1. A learning chair with adjustable backrest comprises a base (1), and is characterized in that: first regulation pole (2) are installed at the top of base (1), the lateral wall cover of first regulation pole (2) is equipped with third control tube (7), logical groove (10) have been seted up to one side of third control tube (7), the inside sliding connection who leads to groove (10) has slider (11), slider (11) are kept away from one side of third control tube (7) is fixed with connecting rod (8), keep away from connecting rod (8) back (9) are installed to the one end of slider (11), the lateral wall cover of connecting rod (8) is equipped with clamp plate (13), clamp plate (13) are the arc, one side laminating of clamp plate (13) in one side of third control tube (7), the lateral wall threaded connection of connecting rod (8) has bolt (14).

2. A learning chair with adjustable backrest as claimed in claim 1, wherein: a spring piece (12) is arranged between the top of the sliding block (11) and the inner wall of the through groove (10).

3. A learning chair with adjustable backrest as claimed in claim 2, wherein: and an anti-skid pad (15) is bonded on one side of the third adjusting pipe (7) adjacent to the pressing plate (13).

4. A learning chair with adjustable backrest as claimed in claim 3, wherein: the outer side wall cover of first regulation pole (2) is equipped with first regulation pipe (3), one side of first regulation pipe (3) is provided with cushion (6).

5. A back rest adjustable learning chair as claimed in claim 4 wherein: one side of first regulation pipe (3) is fixed with the second and adjusts pole (4), the lateral wall cover that the second adjusted pole (4) is equipped with second regulation pipe (5), the bottom of cushion (6) with the top fixed connection of second regulation pipe (5).