CN215226130U

CN215226130U - Adjustable office chair

Info

Publication number: CN215226130U
Application number: CN202121922570.8U
Authority: CN
Inventors: 付德才; 王鲁健
Original assignee: Shenzhen Qianya Business Technology Co ltd
Current assignee: Shenzhen Qianya Business Technology Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2021-12-21
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses an adjustable office chair, which comprises a base, a supporting column is fixedly arranged above the base, a fixed plate is fixedly arranged above the supporting column, adjusting boxes are fixedly arranged at two sides of the fixed plate, a handrail support is movably arranged above the adjusting boxes, a first rotating shaft and a second rotating shaft are fixedly arranged on the inner wall of the adjusting boxes, the first rotating shaft and the second rotating shaft are connected through belt transmission, a backrest is fixedly arranged on the first rotating shaft, a foot pad is fixedly arranged on the second rotating shaft, a driving mechanism for driving the first rotating shaft to rotate is arranged on the inner wall of the adjusting boxes, a lifting mechanism for lifting the handrail support is arranged on the belt, a supporting mechanism for supporting the head is arranged inside the backrest, the headrest and the foot pad are not required to be adjusted one by personnel, and the headrest and the foot pad are automatically extended when the backrest is adjusted, the comfort level of the office chair is improved while the adjustment of workers is facilitated.

Description

Adjustable office chair

Technical Field

The utility model relates to a technical field of office chair, concretely relates to adjustable office chair.

Background

An office chair refers to various chairs which are convenient for work in daily work and social activities. Office chairs are classified into a narrow office chair and a generalized office chair, the narrow office chair refers to a backrest chair on which a person sits when working on a desktop in a sitting posture, and the generalized office chair is all chairs used in offices and comprises a large office chair, a middle office chair, a guest-meeting chair, a staff chair, a conference chair, a visitor chair, a training chair and the like.

Need put the back of the body chair flat when people need have a rest and have a rest, present office chair needs artifical manual pull out shank support and head support to increase the rest of chair body length supply, increased the work load that the staff adjusted, inconvenient people use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable office chair 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 an adjustable office chair, includes the base, the fixed pillar that is provided with in base top, the fixed plate that is provided with in pillar top, the fixed regulating box that is provided with in fixed plate both sides, the activity of regulating box top is provided with the handrail support, regulating box inner wall fixed mounting has first pivot and second pivot, just first pivot is passed through belt transmission with the second pivot and is connected, fixed mounting has the back in the first pivot, fixed mounting has the callus on the sole in the second pivot, the regulating box inner wall is provided with and is used for driving the rotatory actuating mechanism of first pivot, be provided with the elevating system who is used for lift handrail support on the belt, the inside bearing mechanism who is used for bearing head that is provided with of back.

Preferably, the driving mechanism comprises a worm rotatably mounted on the inner wall of the adjusting box, a worm wheel is sleeved on the first rotating shaft and is in meshed connection with the worm, and a turntable is fixedly arranged at the end part of the worm.

Preferably, elevating system is including the first articulated seat that is fixed in the belt side, first articulated seat articulates through the connecting rod has the articulated seat of second, the articulated seat fixed mounting of second is in handrail support below.

Preferably, the supporting mechanism comprises an auxiliary wheel fixed on the inner wall of the backrest, the auxiliary wheel is connected with the first rotating shaft through chain transmission, a supporting block is fixedly arranged on the side wall of the chain and slides on the inner wall of the backrest, a headrest support is fixedly arranged above the supporting block, and a headrest is fixedly arranged on the headrest support.

Preferably, the inner wall of the adjusting box is fixedly provided with a balancing weight, and the inside of the adjusting box is provided with a drawer in a sliding manner.

Preferably, sponge cushions are arranged above the fixing plate and the handrail support.

The utility model discloses a technological effect and advantage: the adjustable office chair is provided with a chair body,

in the normal work, when the staff need have a rest, rotate the carousel, the carousel makes the callus on the sole of its bottom overturn from the bottom to with the cushion parallel and level through belt drive when making its back square through the pivot, it goes up and down to drive the chain in the cooperation pivot, thereby make the headrest on its chain stretch out from the cushion is inside, thereby make its flat rest of lying cooperate headrest and callus on the sole to do the support for rest personnel, the automatic shrink of handrail support is deuterogamied, it is more comfortable when making its rest, when not, can overturn the carousel and pack up the callus on the sole and the headrest has reduced the occupation of land space, need not personnel and adjust one by one, the comfort level of office chair has been improved when being convenient for the staff to adjust.

Drawings

Fig. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a schematic side view in cross section of the present invention;

fig. 4 is an enlarged schematic view of the position a of the present invention.

In the figure: 1. a base; 2. a pillar; 3. a fixing plate; 4. an adjusting box; 5. a handrail support; 6. a first rotating shaft; 7. a second rotating shaft; 8. a belt; 9. a backrest; 10. a foot pad; 11. A drive mechanism; 12. a lifting mechanism; 13. a support mechanism; 14. a worm; 15. a worm gear; 16. a turntable; 17. a first hinge mount; 18. a connecting rod; 19. a second hinge mount; 20. A support block; 21. a headrest bracket; 22. a headrest; 23. a balancing weight; 24. a sponge cushion; 25. A drawer; 26. an auxiliary wheel; 27. and a chain.

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.

The utility model provides an adjustable office chair as shown in figures 1-4, which comprises a base 1, a support column 2 is fixedly arranged above the base 1, a fixed plate 3 is fixedly arranged above the support column 2, adjusting boxes 4 are fixedly arranged at both sides of the fixed plate 3, a handrail support 5 is movably arranged above the adjusting boxes 4, a first rotating shaft 6 and a second rotating shaft 7 are fixedly arranged on the inner wall of the adjusting boxes 4, the first rotating shaft 6 is connected with the second rotating shaft 7 through a belt 8 in a transmission way, a backrest 9 is fixedly arranged on the first rotating shaft 6, a foot pad 10 is fixedly arranged on the second rotating shaft 7, a driving mechanism 11 for driving the first rotating shaft 6 to rotate is arranged on the inner wall of the adjusting boxes 4, a lifting mechanism 12 for lifting the handrail support 5 is arranged on the belt 8, a supporting mechanism 13 for supporting the head is arranged inside the backrest 9, in the work, when the staff needs to have a rest, the first rotating shaft 6 can be rotated, the first rotating shaft 6 rotates to drive the backrest 9 to do circular motion along the rotating shaft as the center and drive the second rotating shaft 7 to rotate through the transmission of the belt 8, the second rotating shaft 7 rotates to drive the foot pad 10 to do circular motion around the second rotating shaft 7, so that the backrest 9 and the foot pad 10 synchronously rotate, when the backrest 9 and the foot pad 10 move to be level with the fixed plate 3, the rotation stops, when the belt 8 rotates, the lifting mechanism 12 drives the handrail support 5 to descend, thereby reducing the side interference to the lying staff, when the first rotating shaft 6 rotates, the headrest 22 of the lying staff stretches out through the supporting mechanism 13 to be convenient for the head of the lying staff to relax, so that the lying staff is more comfortable in the rest, when the user does not use, the foot pad 10 and the headrest 22 can be folded through the turnover rotating disc 16, the occupied space is reduced, and the staff does not need to adjust one by one, the comfort level of the office chair is improved while the adjustment of workers is facilitated.

Actuating mechanism 11 installs in the worm 14 of 4 inner walls of regulating box including rotating, worm wheel 15 has been cup jointed on the first pivot 6, worm wheel 15 is connected with the meshing of

worm

14, 14 end fixing of worm is provided with carousel 16, in the work, the regulating staff rotates carousel 16, the rotatory worm 14 rotation that drives of carousel 16, the rotatory worm wheel 15 rotation that drives of worm 14, worm wheel 15 is rotatory and then drive first pivot 6 rotatory, make it adjust the office chair, have the auto-lock nature because of worm wheel and worm 14, worm 14 drives worm wheel 15 rotation promptly, can not worm wheel 15 drive worm 14 rotation, then effectual regulation stability that has increased, carousel 16 sets up to the fixing base below, reduce the condition emergence of bumping by mistake, more stability and safety when making its staff lay the office chair flat rest.

Elevating system 12 is including the first articulated seat 17 that is fixed in 8 sides of belt, first articulated seat 17 articulates through connecting rod 18 has the articulated seat 19 of second, the articulated seat 19 fixed mounting of second is in handrail support 5 below, in operation, it is rotatory to drive second pivot 7 through belt 8 during first pivot 6 is rotatory, belt 8 drives first articulated seat 17 and moves left when rotatory, first articulated seat 17 moves left and drives the articulated seat 19 of second and move through connecting rod 18, thereby drive handrail support 5 motion, set up on adjusting box 4 because of handrail support 5 activity, then can only the downstream, thereby when back 9 is put at ordinary times, handrail support 5 downstream is to pasting tight adjusting box 4, thereby reduce the obstacle of staff when having a rest on the office chair, the comfort level of office chair has further been improved.

The supporting mechanism 13 comprises an auxiliary wheel 26 fixed on the inner wall of the backrest 9, the auxiliary wheel 26 is in transmission connection with the first rotating shaft 6 through a chain 27, a supporting block 20 is fixedly arranged on the side wall of the chain 27, the supporting block 20 slides on the inner wall of the backrest 9, a headrest support 21 is fixedly arranged above the supporting block 20, a headrest 22 is fixedly mounted on the headrest support 21, in operation, the first rotating shaft 6 rotates to drive the auxiliary wheel 26 to rotate through the transmission of the chain 27, the chain 27 rotates to drive the supporting block 20 to move upwards, the supporting block 20 moves upwards to drive the headrest support 21 to move upwards, so that the headrest 22 is driven to move upwards, the headrest 22 extends out of the backrest 9, the head of a resting person can conveniently bear the rest on the office chair, when the backrest 9 is vertical, the first rotating shaft 6 rotates backwards to drive the headrest 22 to descend so as to be retracted into the backrest 9, the occupied space is reduced while the comfort level of the office chair is effectively improved.

The fixed balancing weight 23 that is provided with of adjusting box 4 inner wall, and adjusting box 4 inside slip is provided with drawer 25, makes about the office chair weight balance, makes it more stable can not squint, sets up drawer 25, makes its staff can place idle miscellaneous article at ordinary times, reduces and takes up an area of the space, has increased the practicality when having increased office chair's stability.

The sponge cushions 24 are arranged above the fixing plate 3 and the armrest support 5, so that the personnel can feel more comfortable when placing arms or sitting on the fixing plate 3, and the comfort level of the office chair is further improved.

Claims

1. An adjustable office chair which is characterized in that: comprises a base (1), a support column (2) is fixedly arranged above the base (1), a fixing plate (3) is fixedly arranged above the support column (2), adjusting boxes (4) are fixedly arranged on two sides of the fixing plate (3), a handrail support (5) is movably arranged above the adjusting boxes (4), a first rotating shaft (6) and a second rotating shaft (7) are fixedly arranged on the inner wall of each adjusting box (4), the first rotating shaft (6) is in transmission connection with the second rotating shaft (7) through a belt (8), a backrest (9) is fixedly arranged on the first rotating shaft (6), a foot pad (10) is fixedly arranged on the second rotating shaft (7), a driving mechanism (11) for driving the first rotating shaft (6) to rotate is arranged on the inner wall of each adjusting box (4), and a lifting mechanism (12) for lifting the handrail support (5) is arranged on the belt (8), a supporting mechanism (13) for supporting the head is arranged in the backrest (9).

2. The adjustable office chair of claim 1, wherein: the driving mechanism (11) comprises a worm (14) rotatably installed on the inner wall of the adjusting box (4), a worm wheel (15) is sleeved on the first rotating shaft (6), the worm wheel (15) is in meshed connection with the worm (14), and a turntable (16) is fixedly arranged at the end of the worm (14).

3. The adjustable office chair of claim 1, wherein: elevating system (12) are including being fixed in first articulated seat (17) of belt (8) side, first articulated seat (17) are articulated through connecting rod (18) to have articulated seat (19) of second, articulated seat (19) fixed mounting of second is in handrail support (5) below.

4. The adjustable office chair of claim 1, wherein: supporting mechanism (13) is including auxiliary wheel (26) that is fixed in back (9) inner wall, just auxiliary wheel (26) are connected through chain (27) transmission with first pivot (6), chain (27) lateral wall is fixed and is provided with supporting shoe (20), supporting shoe (20) slide in back (9) inner wall, supporting shoe (20) top is fixed and is provided with headrest support (21), fixed mounting has headrest (22) on headrest support (21).

5. The adjustable office chair of claim 1, wherein: the inner wall of the adjusting box (4) is fixedly provided with a balancing weight (23), and the inside of the adjusting box (4) is provided with a drawer (25) in a sliding manner.

6. The adjustable office chair of claim 1, wherein: sponge cushions (24) are arranged above the fixing plate (3) and the handrail support (5).