CN219183207U

CN219183207U - Executive chair with liftable headrest

Info

Publication number: CN219183207U
Application number: CN202320195383.7U
Authority: CN
Inventors: 黄跃龙
Original assignee: Anji Hetian Furniture Co ltd
Current assignee: Anji Hetian Furniture Co ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-06-16
Anticipated expiration: 2033-02-13

Abstract

The utility model discloses a executive chair with a liftable headrest, which comprises the following components: the seat, the seat left end rotates and is connected with the back, the inside rotation of back is connected with two threaded rods, two the equal threaded connection of threaded rod outside has the screw thread piece, two screw thread piece lateral wall fixedly connected with bracing piece, the bracing piece upper end is two dead levers of interval fixedly connected with, the back upper end is provided with the back rest, the back rest lower extreme passes back rest upper end and extends to inside, and with dead lever upper end fixed connection. Through the structure, the threaded rod is matched with the threaded block, so that the supporting rod pushes the headrest to move in the moving process, and the height of the headrest is adjusted.

Description

Executive chair with liftable headrest

Technical Field

The utility model relates to the technical field of executive chairs, in particular to a executive chair with a liftable headrest.

Background

The fabric of the executive chair is leather, artificial leather, flannelette or mesh fabric. The office chair has the advantages of strong air permeability, good rebound resilience, extremely large pulling force, difficult deformation, no aging, sitting posture compliance and ergonomic compliance.

The traditional office chair back cushion is basically in fixed connection with the backrest, and the height of the back cushion cannot be adjusted, so that when a person leans on the backrest for a long time, neck stiffness is caused for a long time, and the comfort level is low.

Disclosure of Invention

The utility model aims to solve the technical problem that the headrest of the executive chair is inconvenient to adjust in the prior art by providing the executive chair with the liftable headrest.

To achieve the above object, there is provided a executive chair with a headrest liftable, comprising: the back support comprises a base, wherein the left end of the base is rotationally connected with a back support, the inside of the back support is rotationally connected with two threaded rods, the outside of each threaded rod is connected with a threaded block in a threaded manner, the side walls of each threaded block are fixedly connected with a supporting rod, the upper ends of the supporting rods are fixedly connected with two fixing rods at intervals, the upper ends of the back support are provided with back supports, the lower ends of the back supports penetrate through the upper ends of the back support and extend into the back support and are fixedly connected with the upper ends of the fixing rods, the threaded rods and the supporting rods are utilized to cooperate to push the back supports to move, so that the height of the back supports is adjusted, and the back supports are prevented from loosening after being adjusted to a proper height by utilizing the self-locking function of the threaded rods and the threaded blocks;

the inside fixedly connected with a plurality of spring of back, a plurality of spring one end fixedly connected with limiting plate, the connection of limiting plate lateral wall has the waist to hold in the palm, waist holds in the palm one end and passes the back right side and extend to outside, limiting plate both ends all with the inside sliding connection of back, utilize the spring to hold in the palm with the waist and cooperate, can play the effect of massage to the waist, alleviate fatigue.

According to the executive chair with the liftable headrest, the upper end of the base is fixedly connected with two supporting frames, and the upper ends of the two supporting frames are fixedly connected with armrests.

According to the executive chair with the liftable headrest, the lower end of the base is fixedly connected with the lifting mechanism, the side wall of the lifting mechanism is movably connected with the adjusting rod, and the height of the base is adjusted.

According to the executive chair with the liftable headrest, the fixed disc is fixedly connected to the lower end of the lifting mechanism, the side wall of the fixed disc is fixedly connected with a plurality of supporting legs in an annular shape, and universal wheels are arranged at one ends of the supporting legs, so that the executive chair is convenient to move.

According to the executive chair with the liftable headrest, two knobs are arranged at the upper end of the backrest, and one ends of the two knobs are fixedly connected with one ends of two threaded rods respectively.

According to the executive chair with the liftable headrest, the waist support and the side wall of the headrest are arc-shaped, so that a user can lean on the chair conveniently.

According to the executive chair with the liftable headrest, the side wall of the backrest and the outer wall of the armrest are both provided with sponge.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

The utility model aims to provide a executive chair with a liftable headrest, which is mainly characterized in that:

1. the utility model uses the threaded rod to cooperate with the supporting rod, so that the threaded rod moves under the drive of the knob, thereby using the fixed rod to push the headrest to move, and adjusting the height of the headrest, and using the self-locking function of the threaded rod and the threaded block, the headrest can not loosen after being adjusted to a proper height.

2. The waist support device disclosed by the utility model is matched with the spring, the limiting rod and the waist support, so that the waist of a user can be supported, the waist can be conveniently loosened, and the waist support device is convenient for the user to rely on.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a perspective view of a executive chair with a headrest raised and lowered according to the utility model;

FIG. 2 is a side view of a executive chair with a headrest raised and lowered in accordance with the present utility model;

FIG. 3 is a rear cross-sectional view of a executive chair with a headrest raised and lowered in accordance with the present utility model;

fig. 4 is a side cross-sectional view of a back rest of a executive chair with a headrest raised and lowered in accordance with the present utility model.

Legend description:

1. a base; 2. a backrest; 3. a headrest; 4. an armrest; 5. a support frame; 6. a lifting mechanism; 7. support legs; 8. a universal wheel; 9. a fixed plate; 10. an adjusting rod; 11. a waist support; 12. a spring; 13. a limiting plate; 14. a knob; 15. a screw block; 16. a threaded rod; 17. a fixed rod; 18. and (5) supporting the rod.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

Referring to fig. 1 to 4, an embodiment of the present utility model provides a executive chair with a liftable headrest, comprising: the back rest 2 is rotationally connected to the left end of the base 1, two threaded rods 16 are rotationally connected to the inner part of the back rest 2, external threads of the two threaded rods 16 are symmetrically arranged, so that two threaded blocks 15 are driven by a knob 14 to move simultaneously, a supporting rod 18 is driven to move, the threaded blocks 15 are connected to the outer parts of the two threaded rods 16 in a threaded manner, the supporting rods 18 are fixedly connected to the side walls of the two threaded blocks 15, two fixing rods 17 are fixedly connected to the upper ends of the supporting rods 18 at intervals, a back rest 3 is arranged at the upper end of the back rest 2, and the lower end of the back rest 3 penetrates through the upper end of the back rest 2 to extend into the inner part and is fixedly connected with the upper ends of the fixing rods 17;

the inside fixedly connected with a plurality of spring 12 of back 2, a plurality of spring 12 one end fixedly connected with limiting plate 13, limiting plate 13 lateral wall be connected with waist support 11, spring 12 and waist support 11 cooperate, utilize waist support 11 to support user's waist, can play the effect of massage, waist support 11 one end passes back 2 right side and extends to outside, limiting plate 13 both ends all with the inside sliding connection of back 2.

The base 1 upper end fixedly connected with two support frames 5, two equal fixedly connected with handrail 4 of support frame 5 upper end, base 1 lower extreme fixedly connected with elevating system 6, elevating system 6 is hydraulic means, adjust the height of base 1 under the pole 10 effect of adjusting, elevating system 6 lateral wall swing joint has the pole 10 of adjusting, elevating system 6 lower extreme fixedly connected with fixed disk 9, fixed disk 9 lateral wall is annular fixedly connected with a plurality of supporting leg 7, a plurality of supporting leg 7 one end all is provided with universal wheel 8, back 2 upper end is provided with two knob 14, two knob 14 one end respectively with two threaded rod 16 one end fixed connection, waist holds in the palm 11 and all is the arc setting with back 3 lateral wall, back 2 lateral wall and handrail 4 outer wall all are provided with the sponge.

Working principle: when the device is used, the executive chair is pushed to move through the universal wheels 8, the height of the base 1 is adjusted by the adjusting rod 10 after the executive chair is adjusted to a proper position, so that different users can use the device conveniently, and then the two knobs 14 are driven to rotate simultaneously, so that the two threaded rods 16 are driven to rotate, the two threaded blocks 15 are made to move outside the threaded rods 16, and the supporting rods 18 are utilized to push the fixing rods 17 to move to adjust the height of the headrest 3.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A executive chair with a liftable headrest, comprising: the novel backrest comprises a base (1), wherein the left end of the base (1) is rotationally connected with a backrest (2), the inside of the backrest (2) is rotationally connected with two threaded rods (16), threaded blocks (15) are connected to the outside of the threaded rods (16) in a threaded mode, support rods (18) are fixedly connected to the side walls of the threaded blocks (15), two fixing rods (17) are fixedly connected to the upper ends of the support rods (18) at intervals, a headrest (3) is arranged at the upper end of the backrest (2), and the lower end of the headrest (3) penetrates through the upper end of the backrest (2) to extend into the inside and is fixedly connected with the upper ends of the fixing rods (17);

the novel backrest is characterized in that a plurality of springs (12) are fixedly connected inside the backrest (2), one end of each spring (12) is fixedly connected with a limiting plate (13), a waist support (11) is connected to the side wall of each limiting plate (13), one end of each waist support (11) penetrates through the right side of the backrest (2) to extend to the outside, and two ends of each limiting plate (13) are connected with the inside of the backrest (2) in a sliding mode.

2. The executive chair with the liftable headrest according to claim 1, wherein the upper end of the base (1) is fixedly connected with two supporting frames (5), and the upper ends of the two supporting frames (5) are fixedly connected with armrests (4).

3. The executive chair with the liftable headrest according to claim 1, wherein the lower end of the base (1) is connected with a lifting mechanism (6), and the side wall of the lifting mechanism (6) is movably connected with an adjusting rod (10).

4. A executive chair with a liftable headrest according to claim 3, characterized in that the lower end of the lifting mechanism (6) is fixedly connected with a fixed disc (9), the side wall of the fixed disc (9) is fixedly connected with a plurality of supporting legs (7) in a ring shape, and one end of each supporting leg (7) is provided with a universal wheel (8).

5. The executive chair with the liftable headrest according to claim 1, wherein two knobs (14) are arranged at the upper end of the backrest (2), and one end of each knob (14) is fixedly connected with one end of each threaded rod (16).

6. The executive chair with the liftable headrest according to claim 1, wherein the waist support (11) and the side wall of the headrest (3) are arranged in an arc shape.

7. The executive chair with the liftable headrest according to claim 1, wherein the side wall of the backrest (2) and the outer wall of the armrest (4) are both provided with sponge.