CN210930404U

CN210930404U - Chair for library

Info

Publication number: CN210930404U
Application number: CN201921833618.0U
Authority: CN
Inventors: 赵金禹; 杨光辉; 葛江波
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-07-07
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a chair for library, which comprises a seat plate, supporting legs, a handrail plate, a connecting plate, a backrest, a threaded rod, a threaded sleeve, a connecting block, a driving bevel gear, a rotating shaft, a first driven bevel gear, a second driven bevel gear, a rotating rod, a driving bevel gear and a knob, wherein the supporting legs are symmetrically fixed on the lower surface of the seat plate, the handrail plate is symmetrically fixed on the upper surface of the seat plate, one ends of two handrail plates on the seat plate are fixed with the connecting plate, the upper surface of the seat plate is in sliding connection with the backrest, a rotating groove is arranged inside the handrail plate, the inner wall of the rotating groove is in rotating connection with the threaded rod through a bearing, one end of the threaded rod is in threaded connection with the threaded sleeve, the threaded sleeve is in sliding connection with the rotating groove, one side of the threaded sleeve, which is close to the backrest, is provided with a slide way, and the adjustment is convenient, and the use by people is convenient.

Description

Chair for library

Technical Field

The utility model relates to a library's apparatus technical field specifically is a seat for library.

Background

The library is a mechanism for collecting, arranging and collecting book data for people to read and reference, the library appears 3000 years before the Gongyuan, and has the functions of preserving human cultural heritage, developing information resources, participating in social education and the like;

the existing chair in the library can not adjust the position of the backrest, and when the sizes of people are different, the comfort can be improved only by adjusting the position of the backrest;

and the existing seats are not easily adjustable. To this end, we propose a chair for libraries.

Disclosure of Invention

An object of the utility model is to provide a library uses seat 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: a chair for a library comprises a seat plate, supporting legs, armrest plates, a connecting plate, a backrest, a threaded rod, threaded sleeves, connecting blocks, a driving bevel gear, a rotating shaft, a first driven bevel gear, a second driven bevel gear, a rotating rod, a driving bevel gear and a knob, wherein the supporting legs are symmetrically fixed on the lower surface of the seat plate, the armrest plates are symmetrically fixed on the upper surface of the seat plate, the connecting plate is fixed at one end of each of two armrest plates on the seat plate, the upper surface of the seat plate is connected with the backrest in a sliding manner, a rotating groove is formed in the armrest plate, the inner wall of the rotating groove is connected with the threaded rod through a bearing in a rotating manner, one end of the threaded rod is connected with the threaded sleeves in a threaded manner, the threaded sleeves are connected with the rotating groove in a sliding manner, the connecting block is fixed on one side, close to the backrest, of, the inside one end of being close to the connecting plate of handrail board has seted up the gear groove, threaded rod one end is passed the turn trough and is fixed with drive bevel gear, and drives bevel gear and gear groove and rotate and be connected, the drive groove has been seted up to the connecting plate inner wall, drive inslot wall inner wall rotates through the bearing and is connected with the pivot, the pivot both ends are all passed the drive trough and are stretched into gear inslot wall and be fixed with first driven bevel gear, and two first driven bevel gear in the pivot are connected with two bevel gear meshing in the gear groove respectively, the pivot middle part is fixed with the driven bevel gear of second, drive inslot wall middle part rotates through the bearing and is connected with the bull stick, the one end that the bull stick is close to the driven bevel gear of second is fixed with the drive bevel gear, and drive bevel gear is connected with the driven bevel gear meshing of second.

Preferably, a headrest is fixed at the top of the backrest.

Preferably, a cross beam is fixed on two adjacent supporting legs on the seat plate.

Preferably, the outer side of the knob is provided with anti-skid grains.

Preferably, the backrest is arc-shaped.

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

1. the utility model discloses during the use, rotatory knob, and then drive the bull stick and rotate, and then make the drive bevel gear rotate, drive bevel gear is connected with the meshing of the driven bevel gear of second, and then drive the driven bevel gear of second and rotate, and then make the pivot rotate, the pivot is rotated and is driven two first driven bevel gear rotations, and then drive the drive bevel gear and rotate, make the threaded rod rotate, threaded rod and threaded sleeve threaded connection, and threaded sleeve passes through the spacing of connecting block, make the threaded sleeve can't rotate, and then drive the threaded sleeve and slide in the turn trough when making the threaded rod rotate, and then drive the back and remove, and then the position of adjustable back, make the crowd of trapezoidal difference start people to sit on the seat through the position of adjusting the back, the back can be more comfortable by on the back, improve people's comfort level.

2. The utility model discloses a rotate the knob and drive the drive bevel gear and rotate, and then drive the rotation of second driven bevel gear, and then make the pivot rotate, and then the first driven bevel gear at pivot both ends drives drive bevel gear simultaneously and rotates, and then makes the threaded rod rotate simultaneously, makes the connecting block on the threaded sleeve slide simultaneously, and then makes the more level and smooth slip of back, and it is comparatively convenient to adjust.

Drawings

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

FIG. 2 is a schematic top sectional view of the present invention;

fig. 3 is a schematic side view of the cross-sectional structure of the present invention.

In the figure: 1. a seat plate; 2. supporting legs; 3. a handrail plate; 4. a connecting plate; 5. a backrest; 6. rotating the groove; 7. a threaded rod; 8. a threaded sleeve; 9. connecting blocks; 10. a slideway; 11. a gear groove; 12. a drive bevel gear; 13. a drive slot; 14. a rotating shaft; 15. a first driven bevel gear; 16. a second driven bevel gear; 17. a rotating rod; 18. a drive bevel gear; 19. a knob; 20. a headrest; 21. a cross member.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a chair for a library comprises a seat plate 1, supporting legs 2, armrest plates 3, a connecting plate 4, a backrest 5, a threaded rod 7, a threaded sleeve 8, a connecting block 9, a driving bevel gear 12, a rotating shaft 14, a first driven bevel gear 15, a second driven bevel gear 16, a rotating rod 17, a driving bevel gear 18 and a knob 19, wherein the supporting legs 2 are symmetrically fixed on the lower surface of the seat plate 1, the armrest plates 3 are symmetrically fixed on the upper surface of the seat plate 1, the connecting plate 4 is fixed at one end of each of the two armrest plates 3 on the seat plate 1, the backrest 5 is slidably connected on the upper surface of the seat plate 1, a rotating groove 6 is formed in the armrest plate 3, the threaded rod 7 is rotatably connected on the inner wall of the rotating groove 6 through a bearing, one end of the threaded rod 7 is in threaded connection with the threaded sleeve 8, the threaded sleeve 8 is slidably connected with the rotating groove 6, the connecting block 9 is fixed on one side, a slide way 10 is arranged on one side of the rotating groove 6 close to the connecting block 9, the connecting block 9 penetrates through the slide way 10 to be fixedly connected with the backrest 5, a gear groove 11 is arranged on one end of the inside of the armrest plate 3 close to the connecting plate 4, a driving bevel gear 12 is fixed on one end of the threaded rod 7 penetrating through the rotating groove 6, the driving bevel gear 12 is rotatably connected with the gear groove 11, a driving groove 13 is arranged on the inner wall of the connecting plate 4, a rotating shaft 14 is rotatably connected with the inner wall of the driving groove 13 through a bearing, first driven bevel gears 15 are fixed on two ends of the rotating shaft 14 penetrating through the driving groove 13 and extending into the inner wall of the gear groove 11, two first driven bevel gears 15 on the rotating shaft 14 are respectively meshed with two bevel gears in the gear groove 11, a second driven bevel gear 16 is fixed on the middle part of the rotating shaft 14, and a rotating, a driving bevel gear 18 is fixed at one end of the rotating rod 17 close to the second driven bevel gear 16, the driving bevel gear 18 is in meshed connection with the second driven bevel gear 16, and a knob 19 is fixed at one end of the rotating rod 17 penetrating through the connecting plate 4.

The top of the backrest 5 is fixed with a headrest 20 which is convenient for supporting the head of a person.

Two adjacent supporting legs 2 on the seat 1 are fixed with crossbeam 21, improve supporting leg 2's stability.

The anti-slip threads are formed in the outer side of the knob 19, so that the friction force of the knob 19 is increased conveniently, and people can rotate the knob 19 more easily.

The backrest 5 is arranged in an arc shape, so that the comfort level of people is improved.

The working principle is as follows: when in use, the knob 19 is rotated to drive the rotating rod 17 to rotate, so that the driving bevel gear 18 rotates, the driving bevel gear 18 is meshed and connected with the second driven bevel gear 16, thereby driving the second driven bevel gears 16 to rotate, further driving the rotating shaft 14 to rotate, the rotating shaft 14 drives the two first driven bevel gears 15 to rotate, thereby driving the bevel gear 12 to rotate, enabling the threaded rod 7 to be in threaded connection with the threaded sleeve 8, enabling the threaded sleeve 8 not to rotate through the limit of the connecting block 9, so that the threaded rod 7 drives the threaded sleeve 8 to slide in the rotary groove 6 when rotating, and further drives the backrest 5 to move, and then the position of adjustable back 5 makes the crowd of different sizes begin people to sit on seat 1 through the position of adjusting back 5, and the back can be more comfortable leans on back 5, improves people's comfort level.

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

1. The utility model provides a seat for library, includes seat (1), supporting leg (2), handrail board (3), connecting plate (4), back (5), threaded rod (7), threaded sleeve (8), connecting block (9), drive bevel gear (12), pivot (14), first driven bevel gear (15), second driven bevel gear (16), bull stick (17), drive bevel gear (18) and knob (19), its characterized in that: the seat is characterized in that supporting legs (2) are symmetrically fixed on the lower surface of the seat (1), armrest plates (3) are symmetrically fixed on the upper surface of the seat (1), one ends of the two armrest plates (3) on the seat (1) are fixed with connecting plates (4), a backrest (5) is connected on the upper surface of the seat (1) in a sliding manner, a rotary groove (6) is formed in the armrest plates (3), the inner wall of the rotary groove (6) is rotatably connected with a threaded rod (7) through a bearing, one end of the threaded rod (7) is in threaded connection with a threaded sleeve (8), the threaded sleeve (8) is in sliding connection with the rotary groove (6), a connecting block (9) is fixed on one side, close to the backrest (5), of the threaded sleeve (8), a slide (10) is formed on one side, close to the connecting block (9), of the rotary groove (6), and the connecting block (9) penetrates through the slide (10), a gear groove (11) is formed in one end, close to the connecting plate (4), of the inside of the handrail plate (3), one end of the threaded rod (7) penetrates through the rotating groove (6) and is fixedly provided with a driving bevel gear (12), the driving bevel gear (12) is rotatably connected with the gear groove (11), a driving groove (13) is formed in the inner wall of the connecting plate (4), the inner wall of the driving groove (13) is rotatably connected with a rotating shaft (14) through a bearing, two ends of the rotating shaft (14) penetrate through the driving groove (13) and extend into the inner wall of the gear groove (11) and are fixedly provided with first driven bevel gears (15), two first driven bevel gears (15) on the rotating shaft (14) are respectively meshed with two bevel gears in the gear groove (11), a second driven bevel gear (16) is fixedly arranged in the middle of the rotating shaft (14), and a rotating rod (17) is rotatably connected in the, one end of the rotating rod (17) close to the second driven bevel gear (16) is fixedly provided with a driving bevel gear (18), the driving bevel gear (18) is meshed with the second driven bevel gear (16) and connected with the second driven bevel gear, and one end of the rotating rod (17) penetrates through the connecting plate (4) and is fixedly provided with a knob (19).

2. A library seat according to claim 1, wherein: the top of the backrest (5) is fixed with a headrest (20).

3. A library seat according to claim 1, wherein: two adjacent supporting legs (2) on the seat plate (1) are fixed with a cross beam (21).

4. A library seat according to claim 1, wherein: the outer side of the knob (19) is provided with anti-skid grains.

5. A library seat according to claim 1, wherein: the backrest (5) is arranged in an arc shape.