CN220557693U

CN220557693U - Office chair with adjustable armrests

Info

Publication number: CN220557693U
Application number: CN202320774426.7U
Authority: CN
Inventors: 范力扬
Original assignee: Dongguan Youchuang Furniture Co ltd
Current assignee: Dongguan Youchuang Furniture Co ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2024-03-08
Anticipated expiration: 2033-04-10

Abstract

The utility model discloses an office chair with an adjustable armrest, which comprises: a seat; the chair comprises a chair backrest, wherein one end of the chair seat is fixedly connected with the chair backrest through a bolt assembly, and chair armrests are arranged on two sides of the chair backrest; the auxiliary adjusting mechanism is arranged at the bottom end of the chair seat and on the outer wall of one side of each chair armrest and used for adjusting the positions of the chair armrests. The auxiliary adjusting mechanism is used for rotating the knob, the knob drives the one-way threaded screw rod to rotate, so that the rectangular sliding block is driven to drive the U-shaped connecting block to move upwards, and the two chair armrests are driven to move upwards, so that the positions of the chair armrests are adjusted, users with different heights can support the arms of the users through the two chair armrests, and the overall practicability of the device is improved.

Description

Office chair with adjustable armrests

Technical Field

The utility model belongs to the technical field of chairs, and particularly relates to an office chair with adjustable armrests.

Background

The chair is daily furniture, a modern chair with a backrest and armrests pursues attractive and fashionable, and some chairs are not used as seats only, so that the life of a human being is more convenient under the combination of science and technology, and the chairs comprise office chairs, electronic racing chairs and the like according to the classification.

When a user performs office work or rest on a chair, the arm is usually put on the chair armrest, and the arm of the user is supported through the armrest, but because the armrests of the common chair are fixed, the arm of the user with different heights cannot be put on the armrests to achieve a good supporting effect, so that the comfort level of the user sitting on the chair is affected, and therefore, the office chair with the adjustable armrests is provided for solving the problems.

Disclosure of Invention

The utility model aims to provide an office chair with adjustable armrests, which solves the problem that the armrests of the office chair cannot be adjusted in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an office chair with adjustable armrests comprising:

a seat;

the chair comprises a chair backrest, wherein one end of the chair seat is fixedly connected with the chair backrest through a bolt assembly, and chair armrests are arranged on two sides of the chair backrest;

the auxiliary adjusting mechanism is arranged at the bottom end of the chair seat and on the outer wall of one side of each chair armrest and used for adjusting the positions of the chair armrests.

Further technical scheme, auxiliary adjustment mechanism includes fixed connection the L shape connecting block of seat support bottom, the rotation of L shape connecting block is connected with one-way screw thread lead screw, the inboard sliding connection of L shape connecting block has the rectangle slider, just the rectangle slider cup joints the outer wall of one-way screw thread lead screw, the one end fixedly connected with U-shaped connecting block of rectangle slider, the both ends of U-shaped connecting block respectively with one chair handrail fixed connection, the bottom of one-way screw thread lead screw runs through to the outside of L shape connecting block is provided with supports stop gear.

According to a further technical scheme, a limit chute matched with the rectangular sliding block is formed in the inner side of the L-shaped connecting block, and a thread groove matched with the unidirectional thread screw rod is formed in the inner side of the rectangular sliding block.

Further technical scheme, support stop gear includes fixed ring fixed connection is in L shape connecting block bottom, the bottom of one-way screw thread lead screw runs through to the outside fixedly connected with knob of L shape connecting block, the outer wall fixedly connected with connecting seat of knob, the inboard rotation of connecting seat is connected with the support clamp splice.

Further technical scheme, support the both sides outer wall fixedly connected with pivot of clamp splice, the one end of pivot run through to the outside of connecting seat and with the connecting seat rotates to be connected, the torsional spring is installed to the outer wall of pivot, the one end of torsional spring is installed one side outer wall of connecting seat.

According to a further technical scheme, two support clamping blocks are arranged, the two support clamping blocks are symmetrically arranged on the central axis of the knob, and the two support clamping blocks are propped against the inner side of the fixed circular ring.

The utility model has the beneficial effects that:

1. the auxiliary adjusting mechanism is provided by the utility model, the knob is rotated, the knob drives the one-way threaded screw rod to rotate, so that the rectangular sliding block is driven to drive the U-shaped connecting block to move upwards, and the two chair armrests are driven to move upwards, so that the positions of the chair armrests are adjusted, users with different heights can support the arms of the users through the two chair armrests, and the overall practicability of the device is improved;

2. the utility model provides a support limiting mechanism, when a user needs to adjust the position of a chair armrest, two support clamping blocks are pinched by hands, so that the two support clamping blocks rotate towards the inner side of a knob, when the support clamping blocks rotate, one end of a torsion spring is driven by a rotating shaft to rotate, so that the torsion spring is twisted, when the two support clamping blocks are separated from a fixed circular ring, the user pinches the two support clamping blocks to drive the knob to rotate, the steps are reversed, and the support clamping blocks are propped against the inner side of the fixed circular ring under the action of the torsion spring when the knob is not used, so that the stability of the knob in use is improved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

Fig. 1: the structure of the utility model is schematically shown.

Fig. 2: the bottom structure of the chair seat is schematically shown.

Fig. 3: the L-shaped connecting block is a cross-sectional view.

Fig. 4: the utility model is shown in an enlarged view at a in fig. 3.

Reference numerals:

in the figure: 1. a seat; 2. a chair back; 3. chair armrests; 4. an L-shaped connecting block; 5. a U-shaped connecting block; 6. fixing the circular ring; 7. a one-way threaded screw rod; 8. a rectangular slide block; 9. a knob; 10. a support clamp block; 11. a rotating shaft; 12. a torsion spring; 13. and a connecting seat.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-4, in an embodiment of the utility model, an office chair with an adjustable armrest includes: a seat 1; the chair comprises a chair backrest 2, wherein one end of a chair seat 1 is fixedly connected with the chair backrest 2 through a bolt assembly, and chair armrests 3 are arranged on two sides of the chair backrest 2; the auxiliary adjusting mechanism is arranged at the bottom end of the chair seat 1 and on the outer wall of one side of the two chair armrests 3 and used for adjusting the positions of the chair armrests 3, the auxiliary adjusting mechanism comprises an L-shaped connecting block 4 fixedly connected with the bottom end of the chair seat 1, a unidirectional threaded screw rod 7 is connected with the rotation of the L-shaped connecting block 4, a rectangular sliding block 8 is connected with the inner side of the L-shaped connecting block 4 in a sliding manner, the rectangular sliding block 8 is sleeved on the outer wall of the unidirectional threaded screw rod 7, one end of the rectangular sliding block 8 is fixedly connected with a U-shaped connecting block 5, two ends of the U-shaped connecting block 5 are fixedly connected with one chair armrest 3 respectively, and the bottom end of the unidirectional threaded screw rod 7 penetrates through the outer part of the L-shaped connecting block 4 and is provided with a supporting and limiting mechanism.

In this embodiment: firstly, when the user needs to adjust chair handrail 3 position, rotatory knob 9, knob 9 drive one-way screw thread lead screw 7 and rotate to drive rectangular slide block 8 and drive U-shaped connecting block 5 and upwards remove, thereby drive two chair handrails 3 upwards remove, with this adjust chair handrail 3 position, thereby make the user of different heights support self arm through two chair handrails 3, and then improved the holistic practicality of device.

Referring to fig. 3, a limit chute matched with a rectangular slide block 8 is formed on the inner side of the l-shaped connecting block 4, and a thread groove matched with a unidirectional thread screw rod 7 is formed on the inner side of the rectangular slide block 8.

In this embodiment: the rectangular sliding block 8 is conveniently driven by the unidirectional threaded screw rod 7 to move along the direction of the limiting sliding groove, the rectangular sliding block 8 is limited through the limiting sliding groove, and the rectangular sliding block 8 is prevented from shifting in the moving process.

Referring to fig. 3-4, the support limiting mechanism comprises a fixed circular ring 6 fixedly connected to the bottom end of an L-shaped connecting block 4, a knob 9 is fixedly connected to the outside of the L-shaped connecting block 4 in a penetrating mode through the bottom end of a one-way threaded screw rod 7, a connecting seat 13 is fixedly connected to the outer wall of the knob 9, a support clamping block 10 is rotatably connected to the inner side of the connecting seat 13, rotating shafts 11 are fixedly connected to the outer walls of two sides of the support clamping block 10, one end of each rotating shaft 11 penetrates through the outside of the connecting seat 13 and is rotatably connected with the connecting seat 13, a torsion spring 12 is mounted on the outer wall of each rotating shaft 11, one end of each torsion spring 12 is mounted on one outer wall of the connecting seat 13, two support clamping blocks 10 are arranged, the two support clamping blocks 10 are symmetrically arranged with the central axis of the knob 9, and the two support clamping blocks 10 are propped against the inner side of the fixed circular ring 6.

In this embodiment: when the user needs to adjust the position of the chair armrest 3, the two support clamping blocks 10 are pinched by hands firstly, so that the two support clamping blocks 10 rotate towards the inner side of the knob 9, one end of the torsion spring 12 is driven to rotate through the rotating shaft 11 when the support clamping blocks 10 rotate, the torsion spring 12 is twisted, after the two support clamping blocks 10 are separated from the fixed circular ring 6, the user pinches the two support clamping blocks 10 to drive the knob 9 to rotate, the steps are reversely operated, and the support clamping blocks 10 are propped against the inner side of the fixed circular ring 6 under the action of the torsion spring 12 when the knob 9 is not used, so that the stability of the knob 9 in use is improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. An office chair with adjustable armrests, characterized in that: comprising the following steps:

a seat (1);

the chair comprises a chair backrest (2), wherein one end of a chair seat (1) is fixedly connected with the chair backrest (2) through a bolt assembly, and chair armrests (3) are arranged on two sides of the chair backrest (2);

the auxiliary adjusting mechanism is arranged at the bottom end of the chair seat (1) and on the outer wall of one side of each chair armrest (3) and used for adjusting the positions of the chair armrests (3);

the auxiliary adjusting mechanism comprises an L-shaped connecting block (4) fixedly connected to the bottom end of the chair seat (1), a unidirectional threaded screw rod (7) is connected to the L-shaped connecting block (4) in a rotating mode, a rectangular sliding block (8) is connected to the inner side of the L-shaped connecting block (4) in a sliding mode, the rectangular sliding block (8) is sleeved on the outer wall of the unidirectional threaded screw rod (7), a U-shaped connecting block (5) is fixedly connected to one end of the rectangular sliding block (8), two ends of the U-shaped connecting block (5) are fixedly connected with one chair armrest (3) respectively, and a supporting limiting mechanism is arranged outside the L-shaped connecting block (4) in a penetrating mode from the bottom end of the unidirectional threaded screw rod (7).

2. An office chair with adjustable armrests according to claim 1, wherein: limiting sliding grooves matched with the rectangular sliding blocks (8) are formed in the inner sides of the L-shaped connecting blocks (4), and thread grooves matched with the unidirectional thread screw rods (7) are formed in the inner sides of the rectangular sliding blocks (8).

3. An office chair with adjustable armrests according to claim 1, wherein: the supporting and limiting mechanism comprises a fixed circular ring (6) fixedly connected with the bottom end of the L-shaped connecting block (4), the bottom end of the unidirectional threaded screw rod (7) penetrates through to the outer portion of the L-shaped connecting block (4) and is fixedly connected with a knob (9), the outer wall of the knob (9) is fixedly connected with a connecting seat (13), and the inner side of the connecting seat (13) is rotationally connected with a supporting clamping block (10).

4. An office chair with adjustable armrests according to claim 3, wherein: the outer walls of two sides of the supporting clamp block (10) are fixedly connected with a rotating shaft (11), one end of the rotating shaft (11) penetrates through the outside of the connecting seat (13) and is rotationally connected with the connecting seat (13), a torsion spring (12) is installed on the outer wall of the rotating shaft (11), and one end of the torsion spring (12) is installed on the outer wall of one side of the connecting seat (13).

5. An office chair with adjustable armrests according to claim 3, wherein: the two support clamping blocks (10) are symmetrically arranged on the central axis of the knob (9), and the two support clamping blocks (10) are propped against the inner side of the fixed circular ring (6).