CN110811197B

CN110811197B - Office chair inclination angle adjusting mechanism

Info

Publication number: CN110811197B
Application number: CN201911143226.6A
Authority: CN
Inventors: 辛艺; 赵吉强; 苟华刚
Original assignee: Anduto Chongqing Automotive Parts Co ltd
Current assignee: Anduto Chongqing Automotive Parts Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2024-04-19
Anticipated expiration: 2039-11-20
Also published as: CN110811197A

Abstract

The invention discloses an office chair inclination angle adjusting mechanism which comprises a bracket and a supporting component rotatably arranged on the bracket, wherein an arc-shaped rack is arranged on the bracket, a gear box is arranged on the supporting component, a power input end of the gear box is connected with a driving component, and a gear meshed with the arc-shaped rack is arranged at a power output end of the gear box. The beneficial effects of the invention are as follows: the seat inclination angle adjusting device is convenient to adjust, long in service life, capable of automatically adjusting the seat inclination angle, high in quality and capable of effectively improving user experience.

Description

Office chair inclination angle adjusting mechanism

Technical Field

The invention relates to an adjusting mechanism for a seat, in particular to an office seat inclination angle adjusting mechanism.

Background

Office chair is an office furniture, to office workers, most of the time in the working day is sitting on the chair, and the chair with reasonable structural design and better comfort has the effect of taking care of relieving the fatigue feeling of sitting for a long time.

In the product design of the existing office chair, the practicability and the beauty are generally contradictory, the comfort and the health are contradictory, and sometimes the wrong sitting posture can relax muscles, but the burden of the vertebra is caused. For this reason, some comfort seats are also available on the market, and the sitting posture of the user is adjusted by adjusting the inclination angle of the seat, but the adjusting structure of these seats is generally unreasonable in design, and is particularly inconvenient to adjust, easy to damage, and poor in reliability.

Disclosure of Invention

In view of the above, the present invention provides an office chair tilt angle adjusting mechanism to solve the technical defects of inconvenient adjustment, easy damage, poor reliability, etc. of the conventional adjusting mechanism.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

The utility model provides an office chair inclination adjustment mechanism, includes the support and rotates and install the supporting component on the support, its key lies in: the support is provided with an arc-shaped rack, the support assembly is provided with a gear box, the power output end of the gear box is provided with a gear meshed with the arc-shaped rack, and the power input end of the gear box is connected with the driving assembly so as to drive the gear to rotate through the gear box.

By adopting the structure, the supporting component is used for supporting the body of a user, when the inclination angle of the seat needs to be adjusted, the driving component drives the gear box to work and enables the gear to interact with the arc-shaped rack, so that the supporting component is driven to rotate relative to the bracket, and the adjustment of the inclination angle of the seat is completed. The adjusting mechanism can automatically adjust the inclination angle of the seat, is rich in high-grade sense, and has the technical advantages of convenience in adjustment, reliability in support, long service life and the like.

As preferable: the support assembly comprises a seat support part and a backrest support part, wherein the backrest support part is provided with an armrest, and the middle part of the armrest is rotatably arranged at the upper end of the bracket. By adopting the structure, the rotating point of the support component is the position where the armrest is in rotating fit with the support.

As preferable: the gear box is internally provided with a worm wheel and a worm which are meshed with each other, wherein an output shaft is sleeved on the worm wheel, the gear is fixedly arranged on the output shaft, and a power input port is arranged at the end part of the worm. By adopting the structure, when the adjustment is not needed, the self-locking effect of the worm wheel and the worm can be used for keeping the seat fixed.

As preferable: the driving assembly comprises a motor, and the motor is connected with the worm through a flexible shaft.

As preferable: the support is distributed on the left side and the right side of the seat support component, the gear boxes are mounted at two ends of the lower side of the seat support component, the motor is a double-output motor, and two output ends of the motor are connected with the corresponding gear boxes through the flexible shafts respectively. By adopting the structure, the support assemblies can be synchronously driven to rotate at the two ends, the stress distribution is more uniform, and the smoothness of seat adjustment is better.

As preferable: the lower side of the seat support component is provided with a retainer which is n-shaped, and the retainer is provided with a motor mounting groove and flexible shaft mounting grooves which extend from two ends of the motor mounting groove to opposite directions. By adopting the structure, the assembly is convenient.

As preferable: the support corresponds the position of arc rack and is equipped with the arc hole, the tip of gear is equipped with the bulge of outside extension, and this bulge slides and sets up in the arc hole. By adopting the structure, the installation is convenient.

As preferable: the motor mounting groove is arranged at the middle position of the retainer, and motor fixing holes and motor clamping grooves are respectively formed in two ends of the motor mounting groove. The structure is adopted so as to facilitate the installation of the motor.

As preferable: a flexible shaft clamping block is arranged in the flexible shaft mounting groove. The flexible shaft is conveniently clamped by adopting the structure.

Compared with the prior art, the invention has the beneficial effects that:

by adopting the office chair inclination angle adjusting mechanism provided by the invention, the chair is reliable in support, convenient to adjust and long in service life, and can automatically adjust the chair inclination angle, so that the office chair inclination angle adjusting mechanism is high in sense of quality, and the user experience is effectively improved.

Drawings

Fig. 1 is a schematic structural view of an office chair;

FIG. 2 is an exploded view of the seat adjustment position;

FIG. 3 is a schematic view of the structure of the interior of the gearbox;

FIG. 4 is a bottom view of the office chair;

fig. 5 is an enlarged schematic view of a partial structure of the cage.

Detailed Description

The invention is further described below with reference to examples and figures.

As shown in fig. 1 and 2, an office chair inclination angle adjusting mechanism is provided, the structure of the office chair is composed of a bracket 1 and a supporting component 2 rotatably mounted on the bracket 1, wherein the supporting component 2 is composed of a seat supporting component 2a, a backrest supporting component 2b and an armrest 2c, the middle part of the armrest 2c is rotatably connected to the top end of the bracket 1, the two brackets 1 are symmetrically distributed on the left side and the right side of the supporting component 2, an arc-shaped rack 3 is fixedly mounted on the inner side of the bracket 1, a driving component 5 and a gear box 4 are mounted on the lower surface of the seat supporting component 2a, a gear 6 meshed with the arc-shaped rack 3 is arranged at the power output end of the gear box 4, the driving component 5 drives the gear box 4 to operate, and the gear 6 and the arc-shaped rack 3 can interact, so that the supporting component 2 is driven to rotate relative to the bracket 1, and the adjustment of the chair inclination angle is completed.

As shown in fig. 3 and 4, a worm wheel 4a and a worm 4b which are meshed with each other are arranged in the gear box 4, wherein an output shaft 4c is sleeved on the worm wheel 4a, a gear 6 is fixedly arranged on the output shaft 4c, a power input port 4d is arranged at the end part of the worm 4b, a driving component 5 consists of a motor 5a and a flexible shaft 5b, one end of the flexible shaft 5b is connected to the motor 5a, the other end of the flexible shaft is connected to the power input port 4d of the worm 4b, and based on the structural layout, the motor 5a works, and output power of the motor is transmitted to the gear 6 through the flexible shaft 5b, the worm 4b, the worm wheel 4a and the output shaft 4c in sequence, so that the supporting component 2 is driven to rotate.

As shown in fig. 4, the gear box 4 is fixed on the lower surface of the seat support component 2a through the fixing frame 8, the driving component 5 is fixed on the lower surface of the seat support component 2a through the retainer 7, the gear boxes 4 are respectively arranged at the left end and the right end of the lower surface of the seat support component 2a, the motor 5a is also a double-output motor, the two output ends of the motor are respectively connected with the corresponding gear boxes 4 through flexible shafts 5b, so that the supporting component 2 can be synchronously driven to rotate at the two ends of the seat, the stress distribution is more uniform, and the smoothness of seat adjustment is better.

Further, the retainer 7 is n-shaped, wherein a motor mounting groove 7a is formed in the middle position of the retainer, flexible shaft mounting grooves 7b extending towards opposite directions are formed in the directions corresponding to the two ends of the motor mounting groove 7a, the motor 5a is buckled in the motor mounting groove 7a, the flexible shaft 5b is buckled in the flexible shaft mounting groove 7b, power is transmitted through the turbine 4a and the worm 4b in the gear box 4, vertical power output between the flexible shaft 5b and the output shaft 4c is guaranteed, and the seat can be kept fixed by utilizing the self-locking effect of the turbine 4a and the worm 4b when the seat is not adjusted.

As shown in fig. 5, in order to facilitate the installation of the motor 5a and the flexible shaft 5b, two ends of the motor installation groove 7a are respectively provided with a motor fixing hole 7c and a motor clamping groove 7d, and a flexible shaft clamping block 7e is arranged in the flexible shaft installation groove 7 b.

As shown in fig. 2 and 3, the bracket 1 is provided with an arc hole 1a at a position corresponding to the arc rack 3, the end part of the gear 6 is provided with a protruding part 6a extending outwards, and the protruding part 6a is arranged in the arc hole 1a in a sliding way, so that the gear 6 can be continuously meshed with the arc rack 3 when rotating.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides an office chair inclination adjustment mechanism, includes support (1) and rotates support assembly (2) of installing on support (1), its characterized in that: an arc-shaped rack (3) is arranged on the bracket (1), a gear box (4) is arranged on the supporting component (2), a gear (6) meshed with the arc-shaped rack (3) is arranged at the power output end of the gear box (4), and a driving component (5) is connected with the power input end so as to drive the gear (6) to rotate through the gear box (4);

The support assembly (2) comprises a seat support part (2 a) and a backrest support part (2 b), wherein the backrest support part (2 b) is provided with a handrail (2 c), and the middle part of the handrail (2 c) is rotatably arranged at the upper end of the bracket (1);

The gear box (4) is fixed on the lower surface of the seat support part (2 a) through a fixing frame (8), a turbine (4 a) and a worm (4 b) which are meshed with each other are arranged in the gear box (4), an output shaft (4 c) is sleeved on the turbine (4 a), the gear (6) is fixedly arranged on the output shaft (4 c), a power input port (4 d) is arranged at the end part of the worm (4 b), the driving assembly (5) comprises a motor (5 a), and the motor (5 a) is connected with the worm (4 b) through a flexible shaft (5 b);

The support (1) is distributed on the left side and the right side of the seat support component (2 a), the gear boxes (4) are respectively arranged at two ends of the lower side of the seat support component (2 a), the motor (5 a) is a double-output motor, two output ends of the motor are respectively connected with the corresponding gear boxes (4) through the flexible shafts (5 b), the retainer (7) is arranged at the lower side of the seat support component (2 a), the retainer (7) is in an n shape, and motor mounting grooves (7 a) and flexible shaft mounting grooves (7 b) extending from two ends of the motor mounting grooves (7 a) to opposite directions are formed in the retainer (7).

2. The office chair recliner mechanism of claim 1 wherein: the support (1) is provided with an arc hole (1 a) at the position corresponding to the arc rack (3), the end part of the gear (6) is provided with a protruding part (6 a) extending outwards, and the protruding part (6 a) is arranged in the arc hole (1 a) in a sliding way.

3. The office chair recliner mechanism of claim 1 wherein: the motor mounting groove (7 a) is arranged at the middle position of the retainer (7), and motor fixing holes (7 c) and motor clamping grooves (7 d) are respectively formed in two ends of the motor mounting groove (7 a).

4. The office chair recliner mechanism of claim 1 wherein: a flexible shaft clamping block (7 e) is arranged in the flexible shaft mounting groove (7 b).