阅读说明：本技术 一种稳定性高的高度调节办公座椅 (High altitude mixture control official working seat of stability ) 是由 陈军涛 于 2020-08-25 设计创作，主要内容包括：本发明涉及办公家具技术领域,且公开了一种稳定性高的高度调节办公座椅,包括座板,所述座板的下侧固定安装有安装块,所述内螺纹套件内部活动安装有螺纹杆,所述螺纹杆的下端固定安装有第二锥齿,所述第二锥齿右侧活动连接有第三锥齿,所述第三锥齿下侧活动连接有第一锥齿,所述第一锥齿下侧通过固定轴活动连接有齿轮机构。通过旋转调节件带动旋杆进行转动,旋杆转动的同时其左侧相互啮合的第二锥齿和第三锥齿同步进行转动,第二锥齿旋转的同时其上侧固定连接的螺纹杆进行转动,螺纹杆转动的同时其外侧套设的内螺纹套件进行旋转,上侧的座椅不会连带旋转,从而达到了可使办公座椅进行升降调节的效果。(The invention relates to the technical field of office furniture and discloses a height-adjustable office chair with high stability, which comprises a seat board, wherein an installation block is fixedly installed on the lower side of the seat board, a threaded rod is movably installed in an internal thread external member, a second bevel gear is fixedly installed at the lower end of the threaded rod, a third bevel gear is movably connected to the right side of the second bevel gear, a first bevel gear is movably connected to the lower side of the third bevel gear, and a gear mechanism is movably connected to the lower side of the first bevel gear through a fixed shaft. Drive the swing arm through rotatory adjusting part and rotate, its left side intermeshing's second taper tooth and third taper tooth rotate in step when the swing arm pivoted, and its upside fixed connection's threaded rod rotates when the second taper tooth is rotatory, and the internal thread external member that its outside cover was established rotates when the threaded rod pivoted, and the seat of upside can not take the rotation even to reached and to have made office chair carry out lift adjustment's effect.)

1. The utility model provides a high altitude mixture control office chair of stability, includes bedplate (1), its characterized in that: downside fixed mounting of bedplate (1) has installation piece (4), the symmetry center fixed mounting of installation piece (4) has bearing (29), the inner circle fixed connection of bearing (29) has internal thread external member (17), the inside movable mounting of internal thread external member (17) has threaded rod (15), the gag lever post (30) is passed through to the threaded rod (15) left and right sides, and movable mounting is inside fixed block (16), the lower extreme fixed mounting of threaded rod (15) has second awl tooth (26), second awl tooth (26) right side swing joint has third awl tooth (28), third awl tooth (28) downside swing joint has first awl tooth (24), first awl tooth (24) downside has gear mechanism (8) through fixed axle (10 swing joint, gear mechanism (8) include first gear (18), second gear (20), The balance mechanism comprises a third gear (21), a fourth gear (22), a fifth gear (23) and a connecting rod (9), wherein the left end and the right end of the gear mechanism (8) are both provided with mounting rods (12) which are movably mounted in the balance seat (7).

2. A highly stable height adjustable office chair as claimed in claim 1, wherein: the upper side and the lower side of the interior of the balance seat (7) are respectively provided with a sliding rail (11), a pulley (19) is arranged in each sliding rail (11), and an installation rod (12) is fixedly connected to the inner side of each pulley (19).

3. A highly stable height adjustable office chair as claimed in claim 1, wherein: the upside fixed mounting of balanced seat (7) has fixed block (16), spacing groove (6) have all been seted up to the inside left and right sides of fixed block (16), the inside movable mounting of spacing groove (6) has lifting module (5).

4. A highly stable height adjustable office chair as claimed in claim 1, wherein: the utility model discloses a hydraulic pressure regulating device, including first awl tooth (24), second awl tooth (26), first awl tooth (24) and second awl tooth (26) are connected with the mounting (25) between swing joint, third awl tooth (28) right side fixed mounting has swing arm (27), the right side of swing arm (27) is provided with regulating part (14).

5. A highly stable height adjustable office chair as claimed in claim 1, wherein: a horizontal moving groove (13) is arranged at the symmetrical center of the upper side of the balance seat (7).

6. A highly stable height adjustable office chair as claimed in claim 1, wherein: the chair is characterized in that armrests (2) are fixedly mounted on the front side and the rear side of the seat board (1), and a backrest (3) is fixedly mounted on the right side of the seat board (1).

Technical Field

The invention relates to the technical field of office furniture, in particular to a height-adjustable office chair with high stability.

Background

Office furniture is an item of furniture that is equipped for convenience of working or doing business in daily life work and social activities, office and work chairs generally having good adjustability for increased comfort and to provide improved ergonomic functions, for example, means for adjusting seat height, armrest position and lumbar support are commonly provided.

The lift adjustment function of current known office chair, generally adopt the hydraulic stem, perhaps the form of cylinder carries out lift adjustment, but there is very big potential safety hazard in hydraulic stem and cylinder, especially the operating system that the cylinder was adjusted, if long-time the use, or reciprocate, make the inside high temperature that produces of cylinder body, the condition of exploding the jar very easily produces, in case explode the jar, will cause very big bodily injury to the user, and the seat after a board risees, stability is very poor, if design into the balanced seat of chair bottom, the great base of lifting surface area, although can heighten the equilibrium, but to office chair whole pleasing to the eye, and great base can occupy some area, and can influence user foot activity space, it is very inconvenient.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the height-adjustable office chair with high stability, which has the characteristics of safe lifting of the chair height and high stability, and solves the problems that the conventional office chair is basically lifted by adopting an air cylinder or a hydraulic rod, and the lifting process has great potential safety hazards.

(II) technical scheme

In order to realize the purposes of accurate die assembly, rapid cooling of the fixed die plate and rapid forming of the die, the invention provides the following technical scheme: the utility model provides a high altitude mixture control office chair of stability, includes the bedplate, the downside fixed mounting of bedplate has the installation piece, the symmetry center fixed mounting of installation piece has the bearing, the inner circle fixedly connected with internal thread external member of bearing, the inside movable mounting of internal thread external member has the threaded rod, the lower extreme fixed mounting of threaded rod has the second taper tooth, second taper tooth right side swing joint has the third taper tooth, third taper tooth downside swing joint has first taper tooth, first taper tooth downside has gear mechanism through fixed axle swing joint, gear mechanism includes first gear, second gear, third gear, fourth gear, fifth gear and connecting rod, both ends are by the installation pole about gear mechanism, movable mounting is in the inside of balanced seat.

Preferably, the upper and lower both sides of the inside of balanced seat all are provided with the slide rail, be provided with the pulley in the slide rail, the inboard fixedly connected with installation pole of pulley, the pulley of inside setting can make things convenient for gear mechanism to show balanced seat to the left and right sides.

Preferably, the upside fixed mounting of balanced seat has the fixed block, the spacing groove has all been seted up to the inside left and right sides of fixed block, the inside movable mounting of spacing groove has lifting module, and the cooperation of spacing groove and bearing can make the internal thread external member at the rotatory in-process that rises, and the seat can not take place to rotate.

Preferably, a fixing part is fixedly connected between the first bevel gear and the second bevel gear, a rotating rod is fixedly mounted on the right side of the third bevel gear, an adjusting part is arranged on the right side of the rotating rod, and the adjusting part can be used for adjusting the height of the seat.

Preferably, a horizontal moving groove is formed in the symmetrical center of the upper side of the balance seat, and the moving groove can effectively complete the unfolding process of the balance seat.

Preferably, the equal fixed mounting in both sides has the handrail around the bedplate, the right side fixed mounting of bedplate has the back, and the handrail can prevent that the user from because the nerve leads to empting to both sides when using, takes place danger, and the back then can carry out transient rest when user's work is tired.

(three advantageous effects)

Compared with the prior art, the invention provides the height-adjustable office chair with high stability, which has the following beneficial effects:

1. this can carry out safe altitude mixture control and have stable official working seat, it rotates to drive the swing arm through rotatory regulating part, its left side intermeshing's second awl tooth and third awl tooth rotate in step when the swing arm pivoted, its upside fixed connection's threaded rod rotates when the second awl tooth is rotatory, the internal thread external member that its outside cover was established rotates when the threaded rod was pivoted, the internal thread external member is at the bearing, under the cooperation of lifting module and spacing groove, can realize the internal thread external member rotation type, the seat of upside can not be taken rotatoryly jointly, thereby reached and to have made the official working seat carry out lift adjustment's effect.

2. When the third bevel gear rotates, the first bevel gear meshed with the third bevel gear also synchronously rotates, when the first bevel gear rotates, the lower side of the gear mechanism rotates through the gear mechanism connected with the fixed shaft, and as the first gear, the second gear, the third gear, the fourth gear and the fifth gear are meshed with each other, when the fourth gear connected with the first bevel gear rotates, the rest gear structures synchronously rotate, the gear mechanism can be prevented from falling off under the limitation of the connecting rod, and the purpose of outward extension can be achieved, the first gear and the third gear are both provided with the mounting rod, when the gear mechanism extends outward, the first gear and the third gear can drive the mounting rod, the balance seat is extended outwards by doing transverse movement in the slide rail, thereby achieving the effect that the stability of the office chair is enhanced when the office chair is lifted.

Drawings

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

FIG. 2 is a schematic view of the gear mechanism of the present invention;

FIG. 3 is a schematic view of the connection of a first bevel gear, a second bevel gear and a third bevel gear in accordance with the present invention;

fig. 4 is a cross-sectional view of the slide rail of the present invention.

In the figure: 1. a seat plate; 2. a handrail; 3. a backrest; 4. mounting blocks; 5. a lifting module; 6. a limiting groove; 7. a balance seat; 8. a gear mechanism; 9. a connecting rod; 10. a fixed shaft; 11. a slide rail; 12. mounting a rod; 13. a moving groove; 14. an adjustment member; 15. a threaded rod; 16. a fixed block; 17. an internal thread sleeve; 18. a first gear; 19. a pulley; 20. a second gear; 21. a third gear; 22. a fourth gear; 23. a fifth gear; 24. a first bevel gear; 25. a fixing member; 26. a second taper tooth; 27. rotating the rod; 28. a third bevel gear; 29. a bearing; 30. a limiting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a height adjustable office chair with high stability comprises a seat board 1, armrests 2 are fixedly installed on the front and rear sides of the seat board 1, a backrest 3 is fixedly installed on the right side of the seat board 1, the armrests 2 can prevent a user from using the chair, because the back 3 is distracted and inclined towards two sides, danger occurs, a short rest can be performed when a user works fatigued, the mounting block 4 is fixedly mounted on the lower side of the seat plate 1, the bearing 29 is fixedly mounted at the symmetrical center of the mounting block 4, the inner ring of the bearing 29 is fixedly connected with the internal thread external member 17, the threaded rod 15 is movably mounted inside the internal thread external member 17, the second conical tooth 26 is fixedly mounted at the lower end of the threaded rod 15, the third conical tooth 28 is movably connected to the right side of the second conical tooth 26, the first conical tooth 24 is movably connected to the lower side of the third conical tooth 28, and the fixing member 25 is fixedly connected between the first conical tooth 24 and the second conical tooth 26.

A rotating rod 27 is fixedly arranged on the right side of the third bevel gear 28, an adjusting part 14 is arranged on the right side of the rotating rod 27, the adjusting part 14 can be used for adjusting the height of the seat, the lower side of the first bevel gear 24 is movably connected with a gear mechanism 8 through a fixed shaft 10, the gear mechanism 8 comprises a first gear 18, a second gear 20, a third gear 21, a fourth gear 22, a fifth gear 23 and a connecting rod 9, the left end and the right end of the gear mechanism 8 are both provided with mounting rods 12 which are movably arranged in the balance seat 7, the upper side and the lower side of the interior of the balance seat 7 are both provided with slide rails 11, pulleys 19 are arranged in the slide rails 11, the inner sides of the pulleys 19 are fixedly connected with the mounting rods 12 and the pulleys 19 arranged in the interior, the balance seat 7 can be conveniently unfolded to the left side and the right side by the gear mechanism 8, fixed blocks 16 are fixedly arranged on the upper side of the balance seat 7, the left, the cooperation of spacing groove 6 and bearing 29 can make internal thread external member 17 in the rotatory in-process that rises, and the seat can not take place to rotate, and the upside symmetric center department of balanced seat 7 is provided with flat shifting chute 13, and the process that balanced seat 7 expanded can more effectively be accomplished to shifting chute 13.

The working principle is as follows: the user can adjust the height of the seat by rotating the adjusting part 14, when the user rotates the adjusting part 14, the rotating rod 27 on the left side of the adjusting part 14 rotates synchronously, the third bevel gear 28 on the left end of the rotating rod 27 rotates synchronously under the driving of the rotating rod 27, the first bevel gear 24 and the second bevel gear 26 meshed with the third bevel gear 28 also rotate, when the second bevel gear 26 rotates, the threaded rod 15 fixedly connected with the upper end of the second bevel gear rotates, the external side of the threaded rod 15 is provided with the internal thread sleeve 17, the internal thread sleeve 17 is pushed out upwards when the threaded rod 15 rotates, the seat plate 1 can move upwards, secondly, under the matching of the bearing 29, the lifting module 5 and the limiting groove 6, the seat plate 1 fixedly installed on the upper end of the second bevel gear can be prevented from rotating due to the rotation of the internal thread sleeve 17, and when the third bevel gear 28 rotates, the first bevel gear 24 meshed with the third bevel gear rotates synchronously, when the first bevel gear 24 rotates, the lower side of the first bevel gear rotates through the gear mechanism 8 connected with the fixed shaft 10, and because the first gear 18, the second gear 20, the third gear 21, the fourth gear 22 and the fifth gear 23 are meshed with each other, when the fourth gear 22 connected with the first bevel gear 24 rotates, other gear structures synchronously rotate, the gear mechanism 8 can be prevented from falling off under the limitation of the connecting rod 9, and the outward extension purpose can be achieved, the mounting rods 12 are mounted on the first gear 18 and the third gear 21, when the gear mechanism 8 extends outwards, the first gear 18 and the third gear 21 can drive the mounting rods 12 to do transverse movement in the slide rail 11, the balance seat 7 is extended outwards, the stability of the lifted office chair is ensured, and the danger that office staff sitting on the chair rolls over due to the reduction of the stability after the chair is lifted is prevented, meanwhile, the user can reset the height of the seat and the extension surface of the balance seat 7 by reversely rotating the adjusting piece 14, the contact area between the reset office seat base and the ground is reduced, the occupied office space is reduced, the foot activity space of the user is increased, and the whole appearance is more harmonious and attractive.

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.