CN217743678U

CN217743678U - Automatic adapt to two waist and lean on office chair

Info

Publication number: CN217743678U
Application number: CN202221351438.0U
Authority: CN
Inventors: 董雪芬; 杨培林
Original assignee: Anjidalin Furniture Co ltd
Current assignee: Anjidalin Furniture Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-11-08
Anticipated expiration: 2032-06-01

Abstract

The utility model discloses an office supplies technical field's an automatic adapt to two waist and lean on office chair, including the chair body, the chair body matches and is equipped with the back, the slip of back leading flank is equipped with the rectangular plate, rectangular plate side symmetry is equipped with two waist backup pads, all match between two waist backup pads and the rectangular plate and be equipped with four first springs, two waist backup pad sides all match and be equipped with the side board, and the side board passes through hinged joint with the waist backup pad, it is equipped with middle supporting shoe to match between two waist backup pads, the fixed movable block that is equipped with in middle supporting shoe side, the movable block runs through the rectangular plate, movable block one end extends to and leans on the side behind one's back, and the matching is equipped with slip limiting mechanism, it is equipped with link gear to match between movable block and two side boards. The utility model discloses can carry out the self-adaptation to the back and support, can carry out nimble altitude mixture control, can effectively restrict the position of user's waist both sides simultaneously, ensure good position of sitting.

Description

Automatic adapt to two waist and lean on office chair

Technical Field

The utility model relates to an office supplies technical field especially relates to an automatic two waist of adaptation are leaned on office chair.

Background

With the improvement of living standard, in daily work and study, the office chair is the indispensable office supplies, but people sit on the office chair for a long time, the pressure that the back received is great, can lead to occupational diseases such as lumbar intervertebral disc protrusion often, and the injury of health can bring a great deal of inconvenience for the life, brings the puzzlement for people.

The existing office chair provides the self-adaptive lumbar support to provide support on the waist and the back of a user to achieve the effect of relieving pressure, but causes body injuries such as bad sitting posture, muscle injuries caused by bad posture and soreness and discomfort of muscles caused by long-time use.

To this end, we propose an automatically adaptable double lumbar office chair to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an automatic adaptive double-waist-rest office chair.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an automatic adapt to two waist and lean on office chair, includes the chair body, the chair body matches and is equipped with the back, the back leading flank slides and is equipped with the rectangular plate, rectangular plate side symmetry is equipped with two waist backup pads, two it is equipped with four first springs, four all to match between waist backup pad and the rectangular plate first spring is the matrix setting, and first spring both ends respectively with waist backup pad and rectangular plate fixed connection, two waist backup pad side all matches and is equipped with the side board, and the side board passes through hinged joint with the waist backup pad, two the matching is equipped with middle supporting shoe between the waist backup pad, the fixed movable block that is equipped with in middle supporting shoe side, the movable block runs through the rectangular plate, and the back is equipped with the middle spout that matches with the movable block, movable block one end extends to the back side, and matches and is equipped with the slip limiting mechanism, the matching is equipped with link gear between movable block and two side boards.

Preferably, the waist backup pad is PP plastics material, evenly be equipped with a plurality of bleeder vents in the waist backup pad, the fixed rubber strake that is equipped with of side that waist backup pad and side board correspond.

Preferably, the cross-sectional shape of side board is the arc, side board one side is fixed and is equipped with the silica gel pad.

Preferably, the sliding limiting mechanism comprises a supporting frame, the supporting frame is in an X shape, cylinders are fixedly arranged at four corners of the supporting frame, sliding plates are fixedly connected between one ends of every two cylinders and are slidably connected with the side face of the backrest, bending blocks are fixedly arranged at the upper ends of the two sliding plates, fastening knobs are arranged on the bending blocks in a matched mode, the supporting frame is connected with the end faces of the movable blocks through telescopic rods, and second springs are coaxially sleeved on the outer sides of the telescopic rods.

Preferably, the link gear includes the connecting rod that two symmetries set up, the connecting rod is the L type, connecting rod one end is rotated with the movable block terminal surface and is connected, and the connecting rod other end rotates with the side board side and is connected, two all match on the connecting rod and be equipped with the fulcrum block.

Preferably, the two fulcrum blocks are respectively positioned on two sides of the backrest, the connecting rod is connected with the fulcrum blocks through a rotating shaft, a side sliding groove matched with the fulcrum blocks is formed in the side face of the backrest, and the fulcrum blocks are connected with the backrest in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up two waist backup pads on the back of chair body, and set up rectangular plate and the first spring that corresponds with the waist backup pad, thereby realize when supporting the waist back, reach the self-adaptation supporting effect to the waist back, simultaneously through setting up the movable block and the slip limiting mechanism that correspond, thereby realize the moving as a whole to rectangular plate and two waist backup pads, can be according to user's comfort level, carry out nimble altitude mixture control, set up the side board through rotating in the waist backup pad simultaneously, set up the middle supporting shoe of being connected with the movable block between two waist backup pads, and it is equipped with link gear to match between movable block and two side boards, when the user sits on the chair body with correct position of sitting, when the waist leans on middle supporting shoe after straight, two side boards can take place to rotate under link gear's effect, and clip user's waist both sides, carry out position restriction to it, effectively avoid appearing the bad posture of health to the side slope, realize effectual correction effect.

Drawings

Fig. 1 is a schematic structural view of an office chair with an automatic adaptive double waist support proposed by the present invention;

fig. 2 is a schematic structural view of the back side of the backrest in the office chair with automatic adaptive double waist support proposed by the present invention;

fig. 3 is a schematic structural view of a rectangular plate in an office chair for automatically adapting to double waist support provided by the present invention;

fig. 4 is a schematic structural view of a sliding limiting mechanism in an office chair capable of automatically adapting to double waist rests.

In the figure: the chair comprises a chair body 1, a backrest 2, a rectangular plate 3, a waist supporting plate 4, a first spring 5, a side plate 6, a middle supporting block 7, a movable block 8, a middle sliding groove 9, a rubber edge strip 10, a silica gel pad 11, a supporting frame 12, a cylinder 13, a sliding plate 14, a bending block 15, a fastening knob 16, a telescopic rod 17, a second spring 18, a connecting rod 19, a fulcrum block 20 and a side sliding groove 21.

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.

Referring to fig. 1 to 4, because the existing self-adaptive waist support lacks a mechanism for correcting bad postures, especially lacks a mechanism for limiting and correcting inclined postures, the present solution provides a self-adaptive double waist support office chair, which comprises a chair body 1, the chair body 1 is provided with a backrest 2 in a matching manner, the front side surface of the backrest 2 is provided with a rectangular plate 3 in a sliding manner, i.e. the backrest 2 is provided with a limiting slide rail matched with the rectangular plate 3, the rectangular plate 3 can slide up and down, the side surface of the rectangular plate 3 is symmetrically provided with two waist support plates 4, the waist support plates 4 are made of PP plastic material, the waist support plates 4 are uniformly provided with a plurality of air holes, the two waist support plates 4 can support the waist and the back, pressure can be effectively relieved, four first springs 5 are arranged between the two waist support plates 4 and the rectangular plate 3 in a matching manner, and the four first springs 5 are arranged in a matrix, two ends of each first spring 5 are fixedly connected with the waist supporting plate 4 and the rectangular plate 3 respectively, the four first springs 5 play multi-degree-of-freedom supporting, so that the waist supporting plate 4 can incline left and right and up and down, the automatic adaptive supporting effect on the waist and back is achieved when the waist and back are supported, the side edges of the two waist supporting plates 4 are provided with the side edge plates 6 in a matched mode, the cross section of each side edge plate 6 is arc-shaped, one sides of the side edge plates 6 are fixedly provided with the silica gel pads 11, the silica gel pads 11 play a role in flexible contact, the side edge plates 6 are connected with the waist supporting plates 4 through hinges, the hinges enable the side edge plates 6 to rotate and only rotate towards one side, the side edges, corresponding to the side edge plates 6, of the waist supporting plate 4 are fixedly provided with the rubber edge strips 10, and the rubber edge strips 10 are used for blocking gaps of the hinges and preventing clamping injuries;

the middle supporting block 7 is arranged between the two waist supporting plates 4 in a matched mode, the middle supporting block 7 plays a middle supporting role, a movable block 8 is fixedly arranged on the side face of the middle supporting block 7, the movable block 8 plays a linkage role, the movable block 8 penetrates through the rectangular plates 3, the movable block 8 can slide between the rectangular plates 3, the backrest 2 is provided with a middle sliding groove 9 matched with the movable block 8, and when the rectangular plates 3 are adjusted in height, the middle sliding groove 9 plays a role in enabling the movable block 8 to slide up and down in the middle sliding groove 9, and the rectangular plates 3 cannot move to cause obstruction;

one end of the movable block 8 extends to the rear side of the backrest 2 and is provided with a sliding limiting mechanism in a matching way, the sliding limiting mechanism comprises a support frame 12, the support frame 12 plays a supporting role, the support frame 12 is X-shaped, cylinders 13 are fixedly arranged at four corners of the support frame 12, the cylinders 13 play a supporting role on the support frame 12, a sliding plate 14 is fixedly connected between one end of each two cylinders 13, the two sliding plates 14 are both in sliding connection with the side surface of the backrest 2, namely, the backrest 2 is provided with a limiting sliding rail matched with the two sliding plates 14, the two sliding plates 1 effectively stabilize the corresponding cylinders 13 and the support frame 12 and can drive the cylinders 13 and the support frame 12 to slide, the upper ends of the two sliding plates 14 are both fixedly provided with a bending block 15, and the bending block 15 is provided with a fastening knob 16 in a matching way, the fastening knobs 16 penetrate through the bending blocks 15 in a threaded manner and abut against the backrest 2, the two sliding plates 14 can be fixed and limited to slide by screwing the two fastening knobs 16, the supporting frame 12 is connected with the end face of the movable block 8 through the telescopic rods 17, the end face of the movable block 8 is provided with a movable cavity matched with the telescopic rods 17, the telescopic rods 17 are connected with the movable block 8 in a sliding manner, one end of each telescopic rod 17 is fixedly connected with the supporting frame 12, the telescopic rods 17 are effectively connected, the supporting frame 12 and the rectangular plate 3 can move synchronously, the outer side of each telescopic rod 17 is coaxially sleeved with the second spring 18, the supporting frame 12 is limited by the sliding plates 14, the distance between the supporting frame 12 and the backrest 2 is unchanged, when the movable block 8 moves under pressure, the second springs 18 can contract, and then the second springs 18 also play a role in resetting the movable block 8;

the movable block 8 and the two side plates 6 are provided with a linkage mechanism in a matching manner, the linkage mechanism comprises two connecting rods 19 which are symmetrically arranged, the connecting rods 19 are used for linkage, the connecting rods 19 are L-shaped, one end of each connecting rod 19 is rotatably connected with the end surface of the movable block 8, the other end of each connecting rod 19 is rotatably connected with the side surface of each side plate 6, the movable blocks 8 and the side edges are linked through the connecting rods 19 according to 6, the two connecting rods 19 are respectively provided with fulcrum blocks 20 in a matching manner, the two fulcrum blocks 20 are respectively positioned at two sides of the backrest 2, the connecting rods 19 are connected with the fulcrum blocks 20 through rotating shafts, the connecting rods 19 can rotate along the supporting blocks 12, the side surface of the backrest 2 is provided with side sliding grooves 21 matched with the fulcrum blocks 20, the fulcrum blocks 20 are slidably connected with the backrest 2, the side sliding grooves 21 and the middle sliding grooves 9 are the same in length, the fulcrum blocks 20 can slide up and down with the integral mechanisms such as the rectangular plate 3 and the supporting frames 12, so as not to cause obstruction, when the movable blocks 8 extend and move towards the rear side of the backrest 2, the movable blocks 8 can drive the two connecting rods 19 to rotate by taking the corresponding fulcrum blocks 20 as axes to respectively, and the rotating tracks of the connecting rods 6.

The utility model discloses in, the device's theory of operation as follows:

when the chair body 1 is used, flexible height adjustment can be performed according to the comfort level of a user, the two fastening knobs 16 are firstly unscrewed, the integral mechanism is pushed to move, namely the support frame 12 is pushed, the support frame 12 is connected with the movable block 8, the rectangular plate 3 and other components to move, after the proper position is reached, the two fastening knobs 16 are screwed, the two sliding plates 14 are fixed and limited to slide, namely the support frame 12 is fixed and connected with the movable block 8, the rectangular plate 3 and other components; when the user sits on chair body 1 with correct position of sitting, the straight back of waist leans on middle supporting shoe 7, movable block 8 pressurized movement, telescopic link 17 and the shrink of second spring 18, movable block 8 is to the extension of back 2 rear side removal, movable block 8 drives two connecting rods 19, two connecting rods 19 use the fulcrum block 20 that corresponds to rotate as the axle center, and drive two side boards 6 respectively and rotate, user's waist both sides are cliied to two side boards 6, carry out position restriction to it, effectively avoid appearing the bad posture of health to the side slope, realize effectual restriction and posture correction effect.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an automatic two waist of adaptation lean on office chair, includes chair body (1), chair body (1) matches and is equipped with back (2), its characterized in that, back (2) leading flank slides and is equipped with rectangular plate (3), rectangular plate (3) side symmetry is equipped with two waist backup pad (4), two it is equipped with four first spring (5), four all to match between waist backup pad (4) and rectangular plate (3) first spring (5) are the matrix setting, and first spring (5) both ends respectively with waist backup pad (4) and rectangular plate (3) fixed connection, two waist backup pad (4) side all matches and is equipped with side board (6), and side board (6) and waist backup pad (4) pass through hinged joint, two it is equipped with middle supporting shoe (7) to match between waist backup pad (4), middle supporting shoe (7) side is fixed and is equipped with movable block (8), movable block (8) run through rectangular block (3), and back (2) are equipped with middle movable block (9) that match with movable block (8), movable block (8) extend to the side and limit mechanism, slide between two movable block (8) and the mechanism.

2. The office chair with the self-adaptive double waist support as claimed in claim 1, wherein the waist support plate (4) is made of PP plastic, a plurality of air holes are uniformly formed in the waist support plate (4), and rubber edge strips (10) are fixedly arranged on the side edges of the waist support plate (4) corresponding to the side edge plates (6).

3. The office chair capable of automatically adapting to double waist supports as claimed in claim 1, wherein the cross-sectional shape of the side plate (6) is arc-shaped, and a silica gel pad (11) is fixedly arranged on one side of the side plate (6).

4. The office chair capable of automatically adapting to double waist supports as claimed in claim 1, wherein the sliding limiting mechanism comprises a support frame (12), the support frame (12) is in an X shape, cylinders (13) are fixedly arranged at four corners of the support frame (12), a sliding plate (14) is fixedly connected between one end of each two cylinders (13), the two sliding plates (14) are slidably connected with the side surface of the backrest (2), a bending block (15) is fixedly arranged at the upper end of each of the two sliding plates (14), a fastening knob (16) is arranged on each bending block (15) in a matching manner, the support frame (12) is connected with the end surface of the movable block (8) through a telescopic rod (17), and a second spring (18) is coaxially sleeved outside the telescopic rod (17).

5. The office chair capable of automatically adapting to double lumbar supports according to claim 1, wherein the linkage mechanism comprises two symmetrically arranged connecting rods (19), the connecting rods (19) are L-shaped, one end of each connecting rod (19) is rotatably connected with the end face of the movable block (8), the other end of each connecting rod (19) is rotatably connected with the side face of the side plate (6), and two connecting rods (19) are respectively provided with a fulcrum block (20) in a matching manner.

6. The office chair with the automatic adaptive double lumbar supports according to claim 5, wherein the two fulcrum blocks (20) are respectively arranged on two sides of the backrest (2), the connecting rod (19) is connected with the fulcrum blocks (20) through a rotating shaft, a side sliding groove (21) matched with the fulcrum blocks (20) is formed in the side face of the backrest (2), and the fulcrum blocks (20) are connected with the backrest (2) in a sliding mode.