Human body engineering sitting posture chair

Abstract

The utility model relates to the field of human engineering, in particular to a human engineering sitting posture chair, and aims to overcome the defects that in the prior art, the height of a chair is inconvenient to adjust, the legs of a user cannot be limited, and the use effect is poor. The number of the straight boxes is two, and the two straight boxes are fixedly connected to the bottom of the supporting plate; the number of the branch boxes is two, and the two branch boxes are fixedly connected to the bottom of the supporting plate; the number of the threaded rods is two, and the two threaded rods are rotationally connected to the interiors of the two straight boxes; the number of the bidirectional screw rods is two, and the two bidirectional screw rods are rotationally connected to the interiors of the two branch boxes; the adjusting assembly is fixedly connected to the top of the supporting plate, the two legs of a person can be limited, the situation that some persons shake the legs or place the legs disorderly is avoided, the height of the device can be adjusted more conveniently, and the using effect is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of human engineering, in particular to a human engineering sitting posture chair. BACKGROUND

[0002] The human engineering is mainly made of elastic and environment-friendly materials such as mesh cloth, environment-friendly cloth and high-quality memory foam to make the cushion and the backrest, and is very suitable for the development of future furniture trends in process design. It has good ventilation and heat dissipation characteristics, is comfortable and healthy, can prevent the growth of bacteria in the use process of the chair, and can reduce the compression area of the hip and back, press the acupoints, promote the blood circulation of the hip and back, avoid the strain of the neck, shoulder and waist, and keep the healthy physique.

[0003] The patent file with the publication number CN207532169U discloses a human engineering sitting posture chair, which comprises a seating surface, a waist support and a seat device of a support frame, the frame comprises, in sequence, a part of the base that leans against the ground, a seat support that supports the seating surface, a backrest part that supports the waist support, and the device further comprises a neck support supported from the backrest part, wherein the seat support is movably coupled to the base so as to be vertically movable, the seating surface is slidably coupled to the seat support so as to be horizontally movable, the waist support is movably coupled to the backrest part so as to be vertically movable, and the neck support is movably coupled to the backrest part so as to be vertically movable.

[0004] However, the above-mentioned human engineering sitting posture chair is inconvenient to adjust the height of the seat, and cannot limit the legs of the user, and the use effect is poor, and therefore, the present application provides a human engineering sitting posture chair to solve the above-mentioned problems. Content of the utility model

[0005] The utility model aims at solving the shortcomings of inconvenient height adjustment of the seat and inability to limit the user's legs in the prior art, and provides a human engineering sitting posture chair.

[0006] The human engineering sitting posture chair provided by the present application adopts the following technical scheme:

[0007] A human engineering sitting posture chair comprises:

[0008] A support plate;

[0009] Two straight boxes are arranged, and the two straight boxes are fixedly connected to the bottom of the support plate;

[0010] Two support boxes are arranged, and the two support boxes are fixedly connected to the bottom of the support plate;

[0011] Threaded rods, two threaded rods are arranged, and the two threaded rods are rotationally connected to the interiors of the two straight boxes;

[0012] Bidirectional screw rods, two bidirectional screw rods are arranged, and the two bidirectional screw rods are rotationally connected to the interiors of the two support boxes;

[0013] Support plates, the support plates are threadedly connected to the two bidirectional screw rods;

[0014] Adjusting assemblies, the adjusting assemblies are fixedly connected to the top of the support plate.

[0015] Further, the adjusting assemblies comprise motors fixedly connected to the top of the support plate, and the interiors of the two support boxes are rotationally connected with shafts, the two shafts and the two bidirectional screw rods are fixedly connected, and one of the two shafts and the output end of the motor are fixedly connected.

[0016] Further, one end of each of the two shafts is fixedly connected with a first sprocket, the same first chain is engaged on the two first sprockets, the interiors of the two straight boxes are rotationally connected with two rotating rods, and the two rotating rods and the two threaded rods are fixedly connected.

[0017] Further, one end of each of the two rotating rods is fixedly connected with a second sprocket, the same second chain is engaged on the two second sprockets, one end of one of the two shafts and one of the two rotating rods are fixedly connected with a third sprocket, and the same third chain is engaged on the two third sprockets.

[0018] Further, the two threaded rods and the two bidirectional screw rods are threadedly connected with screw blocks, the two sides of the four screw blocks are fixedly connected with supports, and the bottoms of the four supports are fixedly connected with four base plates.

[0019] Further, the support plates are slidingly connected with two sliding blocks, one side of each of the two sliding blocks is fixedly connected with a leg piece, the two leg pieces are matched with each other, the bottom of the support plate is fixedly connected with two electric telescopic rods, and one end of each of the two electric telescopic rods is fixedly connected with a sliding block.

[0020] Further, one side of each of the two straight boxes and the two support boxes is fixedly connected with a fixed rod, and the top of the support plate is connected with a backrest, the top of the support plate is fixedly connected with two armrests, and the two armrests are connected with the backrest.

[0021] Further, the interior of the backrest is rotationally connected with a stud, the interior of the backrest is fixedly connected with a limiting rod, the stud is threadedly connected with a support piece, the support piece and the limiting rod are slidingly connected, and the stud and one of the two rotating rods are fixedly connected.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. When the person's legs need to be restricted, the electric telescopic rod is started, the electric telescopic rod drives the sliding block to move, the sliding block drives the leg binding part to move, so that the two leg binding parts move to the middle, thereby fixing the legs, and the legs reach the standard sitting position;

[0024] 2. When the height of the device needs to be adjusted, the motor is started, the output end of the motor drives the rotating shaft to rotate, the rotating shaft drives the bidirectional screw rod at one end of the rotating shaft to rotate through the first sprocket and the first chain, and the rotating shaft also drives the rotating rod to rotate through the third sprocket and the third chain, the rotating rod drives the threaded rod to rotate through the second sprocket and the second chain, the rotating threaded rod and the bidirectional screw rod drive the screw block on one side to move, and the screw block drives the support and the pad to move, so that the height of the device changes BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is a schematic diagram of the three-dimensional structure of a human engineering sitting chair in the embodiment of the present application;

[0026] Fig. 2 is a schematic diagram of the three-dimensional structure of a chair back of a human engineering sitting chair in the embodiment of the present application;

[0027] Fig. 3 is a schematic diagram of the three-dimensional structure of part of a human engineering sitting chair in the embodiment of the present application.

[0028] Reference signs: 1, support plate; 2, straight box; 3, support box; 4, threaded rod; 5, bidirectional screw rod; 6, screw block; 7, support; 8, pad; 9, fixed rod; 10, support plate; 11, sliding block; 12, leg binding part; 13, chair back; 14, armrest; 15, limiting rod; 16, screw post; 17, support; 18, motor; 19, rotating shaft; 20, first sprocket; 21, first chain; 22, rotating rod; 23, third sprocket; 24, third chain; 25, second sprocket; 26, second chain. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0030] Embodiment one

[0031] Referring to Figs. 1-3 , a human engineering sitting chair comprises:

[0032] a support plate 1;

[0033] two straight boxes 2, and the two straight boxes 2 are fixedly connected to the bottom of the support plate 1;

[0034] Support boxes 3 are provided with two, and two support boxes 3 are fixedly connected to the bottom of the support plate 1;

[0035] Threaded rods 4 are provided with two, and two threaded rods 4 are rotatably connected to the inside of the two straight boxes 2;

[0036] Bidirectional screw rods 5 are provided with two, and two bidirectional screw rods 5 are rotatably connected to the inside of the two support boxes 3;

[0037] Support plate 10 is threadedly connected to two bidirectional screw rods 5;

[0038] Adjusting assembly is fixedly connected to the top of the support plate 1.

[0039] Specifically, the adjusting assembly includes a motor 18 fixedly connected to the top of the support plate 1, and two rotating shafts 19 are rotatably connected inside the two support boxes 3, the two rotating shafts 19 and the two bidirectional screw rods 5 are fixedly connected, and one of the two rotating shafts 19 and the output end of the motor 18 are fixedly connected.

[0040] Specifically, one end of the two rotating shafts 19 is fixedly connected with a first sprocket 20, the same first chain 21 is engaged on the two first sprockets 20, and two rotating rods 22 are rotatably connected inside the two straight boxes 2, and the two rotating rods 22 and the two threaded rods 4 are fixedly connected.

[0041] Specifically, one end of the two rotating rods 22 is fixedly connected with a second sprocket 25, the same second chain 26 is engaged on the two second sprockets 25, and one end of one of the two rotating shafts 19 and one of the two rotating rods 22 are fixedly connected with a third sprocket 23, and the same third chain 24 is engaged on the two third sprockets 23.

[0042] Specifically, the two threaded rods 4 and the two bidirectional screw rods 5 are threadedly connected with a screw block 6, the two sides of the four screw blocks 6 are fixedly connected with a support 7, and the bottom of the four supports 7 is fixedly connected with four pad plates 8.

[0043] Specifically, the support plate 10 is slidably connected with two sliding blocks 11, one side of the two sliding blocks 11 is fixedly connected with a leg piece 12, the two leg pieces 12 cooperate with each other, and the bottom of the support plate 10 is fixedly connected with two electric telescopic rods, one end of the two electric telescopic rods is respectively fixedly connected with the two sliding blocks 11.

[0044] Specifically, one side of the two straight boxes 2 and the two support boxes 3 is fixedly connected with two fixed rods 9, and the top of the support plate 1 is connected with a chair back 13, the top of the support plate 1 is fixedly connected with two armrests 14, and the two armrests 14 are connected with the chair back 13.

[0045] Specifically, the inside of the chair back 13 is rotationally connected with a stud 16, the inside of the chair back 13 is fixedly connected with a limiting rod 15, the stud 16 is threadedly connected with a support 17, the support 17 and the limiting rod 15 are slidingly connected, and the stud 16 is fixedly connected with one of the two rotating rods 22.

[0046] The implementation principle of the ergonomic sitting posture chair according to the embodiment of the application is as follows: when the device needs to be used, the device is only needed to be moved to a designated position, a person sits on the support plate 1, and then the electric telescopic rod is started, the electric telescopic rod drives the sliding block 11 to move, the sliding block 11 drives the leg binding members 12 to move, so that the two leg binding members 12 move to the middle, thereby fixing the two legs, and the two legs reach the standard sitting posture, and the support 17 on the chair back 13 can support the waist of the person sitting on the device, thereby reducing the pressure on the waist, thereby helping the human body to reach the standard sitting posture; when the height of the device needs to be adjusted, the motor 18 is started, the output end of the motor 18 drives the corresponding rotating shaft 19 to rotate, the rotating shaft 19 drives the other rotating shaft 19 to rotate through the first sprocket 20 and the first chain 21, so that the bidirectional screw rod 5 at one end of the rotating shaft 19 rotates, and the rotating shaft 19 also drives the rotating rod 22 to rotate through the third sprocket 23 and the third chain 24, the rotating rod 22 drives the other rotating rod 22 to rotate through the second sprocket 25 and the second chain 26, the rotating rod 22 drives the threaded rod 4 to rotate, the rotating threaded rod 4 and the bidirectional screw rod 5 drive the screw block 6 on one side to move, the screw block 6 drives the support 7 and the pad 8 to move, so that the height of the device changes, and when the bidirectional screw rod 5 drives the pad 8 to move, the support plate 10 also moves, so that the positions of the leg binding members 12 also change, and when the rotating rod 22 drives the threaded rod 4 to rotate, the screw stud 16 at the other end of the threaded rod 4 also rotates, the screw stud 16 drives the support 17 to move, so that the support 17 moves along the limiting rod 15, thereby changing the position of the limiting rod 15, and when the height requirement is reached, the motor 18 can be turned off.

[0047] Embodiment two

[0048] The difference between the embodiment and the embodiment one is that a neck fixing member is fixedly connected to the top of the support 17, when a person sits on the device, the support 17 can support the waist of the person, and the neck fixing member can support the neck of the person, thereby further assisting the human body to reach the standard sitting posture.

[0049] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. An ergonomic sitting chair, characterized by: Include: Supporting plate (1); Straight box (2), two straight boxes (2) are provided, and the two straight boxes (2) are fixedly connected to the bottom of the supporting plate (1); Support box (3), two support boxes (3) are provided, and the two support boxes (3) are fixedly connected to the bottom of the supporting plate (1); Threaded rod (4), two threaded rods (4) are provided, and the two threaded rods (4) are rotatably connected to the inside of the two straight boxes (2); Two-way screw rod (5), two two-way screw rods (5) are provided, and the two two-way screw rods (5) are rotatably connected to the inside of the two support boxes (3); Support plate (10) is screw connected to two two-way screw rods (5); Adjusting assembly, fixedly connected to the top of the supporting plate (1).

2. An ergonomic sitting chair according to claim 1, characterized in that: The adjusting assembly includes a motor (18) fixedly connected to the top of the supporting plate (1), and a rotating shaft (19) rotatably connected in the inside of each of the two support boxes (3), the two rotating shafts (19) and the two two-way screw rods (5) are fixedly connected, and one of the two rotating shafts (19) and the output end of the motor (18) are fixedly connected.

3. An ergonomic sitting chair according to claim 2, characterized in that: One end of each of the two rotating shafts (19) is fixedly connected with a first sprocket (20), the same first chain (21) is engaged on the two first sprockets (20), and two rotating rods (22) are rotatably connected in the inside of the two straight boxes (2), the two rotating rods (22) and the two threaded rods (4) are fixedly connected.

4. An ergonomic sitting chair according to claim 3, characterized in that: One end of each of the two rotating rods (22) is fixedly connected with a second sprocket (25), the same second chain (26) is engaged on the two second sprockets (25), one end of one of the two rotating shafts (19) and one of the two rotating rods (22) are fixedly connected with a third sprocket (23), and the same third chain (24) is engaged on the two third sprockets (23).

5. An ergonomic sitting chair according to claim 4, characterized in that: The threaded rods (4) and the two-way screw rods (5) are screw connected with a screw block (6), the two sides of the four screw blocks (6) are fixedly connected with a support (7), and the bottom of the four supports (7) is fixedly connected with four backing plates (8).

6. An ergonomic sitting chair according to claim 5, characterized in that: The support plate (10) is slidably connected with two sliding blocks (11), one side of each of the two sliding blocks (11) is fixedly connected with a leg piece (12), the two leg pieces (12) cooperate with each other, and the bottom of the support plate (10) is fixedly connected with two electric telescopic rods, one end of each of the two electric telescopic rods is fixedly connected with a sliding block (11).

7. An ergonomic sitting chair according to claim 6, characterized in that: One side of each of the two straight boxes (2) and the two support boxes (3) is fixedly connected with two fixed rods (9), the top of the supporting plate (1) is connected with a backrest (13), the top of the supporting plate (1) is fixedly connected with two armrests (14), and the two armrests (14) are connected with the backrest (13).

8. An ergonomic sitting chair according to claim 7, characterized in that: The inside of the backrest (13) is rotatably connected with a stud (16), the inside of the backrest (13) is fixedly connected with a limiting rod (15), the stud (16) is screw connected with a supporting piece (17), the supporting piece (17) is slidably connected with the limiting rod (15), and the stud (16) is fixedly connected with one of the two rotating rods (22).

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