Safe sitting posture correction office chair

Abstract

The utility model belongs to the technical field of office appliances, and particularly discloses a safe sitting posture correction office chair which comprises a seat, a fixing frame is fixedly installed on the seat, a sliding groove is fixedly formed in the inner side of the fixing frame, a first protruding shaft block is connected to the inner side of the sliding groove in a sliding mode, and a connecting sleeve is rotatably connected to the outer surface of the first protruding shaft block. A waist support is arranged at the end, away from the fixing frame, of the connecting sleeve, a driving mechanism used for adjusting the supporting angle of the waist support is arranged on the fixing frame, and the driving mechanism comprises a fixing table fixedly connected to the inner side of the fixing frame. According to the safe sitting posture correction office chair, the angle and the position of the waist support can be adjusted through the motor driving system, customized support is provided according to the individual spine curve and the sitting posture habit of a user, the waist of the user can be lifted and supported more accurately through the personalized support, the natural curve of the spine can be kept, and the sitting posture correction effect is improved. Waist fatigue and discomfort caused by improper sitting postures are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of office appliances, and in particular to a safe sitting posture correction office chair. Background Art

[0002] Office chairs are specially designed for office environments to provide comfort, support and health when sitting for long periods of time. Office chairs provide good back support, including lumbar support and head support to ensure comfort and health for long periods of sitting.

[0003] Existing office chairs generally do not have the function of correcting sitting posture. A good sitting posture should be the result of the natural curve of the spine being supported and protected. Many people, when sitting for a long time, are prone to excessive lumbar flexion or incorrect spinal curvature due to the lack of proper support for the waist, which in turn causes waist fatigue and discomfort. Utility Model Content

[0004] In view of this, the purpose of the utility model is to solve the shortcomings of the background technology and to provide a safe sitting posture correction office chair to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides a safe sitting posture correction office chair, including a seat, a fixing frame fixedly installed on the seat, a slide groove fixedly opened on the inner side of the fixing frame, a first cam block slidably connected to the inner side of the slide groove, a connecting sleeve rotatably connected to the outer surface of the first cam block, a lumbar support is arranged at one end of the connecting sleeve away from the fixing frame, and a driving mechanism for adjusting the lumbar support support angle is arranged on the fixing frame.

[0006] Preferably, the driving mechanism includes a fixed platform fixedly connected to the inner side of the fixed frame, a motor is fixedly mounted on the fixed platform, a screw rod is fixedly connected to the output end of the motor, and the inclination angle of the lumbar support can be adjusted by the driving mechanism to a suitable supporting angle to maintain a good sitting posture.

[0007] Preferably, a second cam block is threadedly sleeved on the outer surface of the screw rod, and the outer surface of the second cam block is rotatably connected to the first frame bar.

[0008] Preferably, the outer surface of the lumbar support is fixedly connected with a first driving plate, the inner side of the first driving plate is fixedly penetrated with a first plate shaft, and the outer surface of the first plate shaft is rotatably connected with an end of the first frame bar away from the second convex shaft block.

[0009] Preferably, the outer surface of the lumbar support is fixedly connected with a second driving plate, and the inner side of the second driving plate is fixedly penetrated with a second plate shaft.

[0010] Preferably, a fixed shaft is fixedly connected to the inner side of the fixed frame, a second frame bar is rotatably connected to the outer surface of the fixed shaft, and one end of the second frame bar away from the fixed shaft is rotatably connected to the outer surface of the second plate shaft.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. This safe sitting posture correction office chair can adjust the angle and position of the lumbar support through the motor drive system, and provide customized support according to the user's individual spinal curve and sitting habits. This personalized support can more accurately lift and support the user's waist, help maintain the natural curve of the spine, and reduce waist fatigue and discomfort caused by incorrect sitting posture.

[0013] 2. This safe sitting posture correction office chair can dynamically adjust the inclination and position of the lumbar support. Users can adjust it at any time according to their own comfort and needs. This flexibility makes the chair more adaptable to different work scenarios and individual habits, improves the overall user experience and comfort, and enables users to maintain an efficient working state for a longer time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the inner structure of the fixing frame of this application;

[0016] Figure 3 This is a schematic diagram of the exploded structure of the fixed frame part of this application.

[0017] Among them: 1. seat; 2. fixed frame; 3. slide; 4. first cam block; 5. connecting sleeve; 6. lumbar support; 7. fixed platform; 8. motor; 9. screw rod; 10. second cam block; 11. first frame bar; 12. first drive plate; 13. first plate shaft; 14. second drive plate; 15. second plate shaft; 16. fixed shaft; 17. second frame bar. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] See also Figure 1-3A safe sitting posture correction office chair includes a seat 1, a fixing frame 2 is fixedly installed on the seat 1, a slide groove 3 is fixedly opened on the inner side of the fixing frame 2, a first cam block 4 is slidably connected to the inner side of the slide groove 3, a connecting sleeve 5 is rotatably connected to the outer surface of the first cam block 4, a lumbar support 6 is arranged at one end of the connecting sleeve 5 away from the fixing frame 2, and a driving mechanism for adjusting the supporting angle of the lumbar support 6 is arranged on the fixing frame 2.

[0020] Through the above technical solution, when the device is in use, a person sitting on the seat 1 can cooperate with the lumbar support 6 to support and lift the waist. The lumbar support 6 can be adjusted to a suitable inclination position through the driving mechanism, and customized support can be provided according to the individual's waist curve, so that the waist can naturally maintain a normal curvature, thereby maintaining a good sitting posture.

[0021] Specifically, the driving mechanism includes a fixing platform 7 fixedly connected to the inner side of the fixing frame 2 , a motor 8 is fixedly mounted on the fixing platform 7 , and a lead screw 9 is fixedly connected to the output end of the motor 8 .

[0022] Through the above technical solution, the motor 8 is turned on so that the second cam block 10 can move axially along the screw rod 9 during the rotation of the screw rod 9 .

[0023] Specifically, the outer surface of the screw rod 9 is threadedly sleeved with a second cam block 10 , and the outer surface of the second cam block 10 is rotatably connected to the first frame bar 11 .

[0024] Through the above technical solution, when the second cam block 10 moves along the screw rod 9 , it will drive the first frame bar 11 to rotate along the second cam block 10 .

[0025] Specifically, the outer surface of the lumbar support 6 is fixedly connected with the first driving plate 12 , the inner side of the first driving plate 12 is fixedly penetrated with a first plate shaft 13 , and the outer surface of the first plate shaft 13 is rotatably connected with one end of the first frame bar 11 away from the second cam block 10 .

[0026] Through the above technical solution, the first driving plate 12 and the second driving plate 14 and the plate shafts on their surfaces are designed to cooperate with the two sets of frame bars to drive and adjust the lumbar support 6.

[0027] Specifically, the outer surface of the lumbar support 6 is fixedly connected with the second driving plate 14 , and the inner side of the second driving plate 14 is fixedly penetrated with the second plate shaft 15 .

[0028] Through the above technical solution, when the second driving plate 14 cooperates with the first driving plate 12 to adjust the lumbar support 6, the first cam block 4 will slide along the slide groove 3, and the connecting sleeve 5 will rotate along the convex part of the first cam block 4.

[0029] Specifically, a fixed shaft 16 is fixedly connected to the inner side of the fixed frame 2 , a second frame bar 17 is rotatably connected to the outer surface of the fixed shaft 16 , and one end of the second frame bar 17 away from the fixed shaft 16 is rotatably connected to the outer surface of the second plate shaft 15 .

[0030] Through the above technical solution, when the second frame bar 17 rotates along the fixed axis 16, it will cooperate with the second plate axis 15 to adjust the corresponding position.

[0031] Working principle: When a person sits on the seat 1, the lumbar support 6 can lift and support his waist. Considering that an incorrect sitting posture may easily lead to the lumbar support 6 not providing proper support for the waist, the inclination and position of the lumbar support 6 can be adjusted at this time, that is, the motor 8 is turned on to drive the screw rod 9 to rotate. During this process, the second cam block 10 will move axially along the screw rod 9. While the first frame bar 11 rotates along the surface of the second cam block 10, its other end will rotate along the first plate axis 13. At the same time, the lumbar support 6 can be driven by the first frame bar 11 through the first plate axis 13 and the first drive plate 12, so that the lumbar support 6 is deflected, and the second frame bar 17 will rotate along the fixed axis 16 and rotate through the second plate axis 15 and the second drive plate 14. In cooperation with the lumbar support 6, the first cam block 4 will slide along the slide groove 3, and the connecting sleeve 5 will rotate along the first cam block 4, so that the lumbar support 6 will move as a whole and its inclination angle will change synchronously, until the lumbar support 6 is adjusted to a suitable supporting position, and the human waist is properly supported to maintain a correct sitting posture. When the waist is properly supported, the weight of the entire upper body can be evenly distributed on the seat 1, reducing local pressure points. This not only reduces the fatigue caused by sitting for a long time, but also prevents and reduces discomfort in the waist and neck, that is, the physiological curvature of the spine is kept within a normal range, thereby reducing the health risks caused by spinal twisting or incorrect posture.

[0032] In summary: the seat 1 in the present application can add a more precise support mechanism to the design of the seat 1 by changing the support angle of the lumbar support 6, thereby effectively promoting the user's correct sitting posture, reducing the occurrence of spinal problems, and improving the comfort and health of long-term sitting.

[0033] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A safe sitting posture correction office chair, comprising a seat (1), characterized in that: A fixing frame (2) is fixedly mounted on the seat (1), a slide groove (3) is fixedly provided on the inner side of the fixing frame (2), a first cam block (4) is slidably connected to the inner side of the slide groove (3), a connecting sleeve (5) is rotatably connected to the outer surface of the first cam block (4), a lumbar support (6) is provided at one end of the connecting sleeve (5) away from the fixing frame (2), and a driving mechanism for adjusting the supporting angle of the lumbar support (6) is provided on the fixing frame (2).

2. A safe sitting posture correction office chair according to claim 1, characterized in that: The driving mechanism comprises a fixed platform (7) fixedly connected to the inner side of the fixed frame (2), a motor (8) is fixedly mounted on the fixed platform (7), and a screw rod (9) is fixedly connected to the output end of the motor (8).

3. A safe sitting posture correction office chair according to claim 2, characterized in that: The outer surface of the screw rod (9) is threadedly sleeved with a second cam block (10), and the outer surface of the second cam block (10) is rotatably connected to a first frame bar (11).

4. The safe sitting posture correction office chair according to claim 3, characterized in that: The outer surface of the waist support (6) is fixedly connected to a first drive plate (12), the inner side of the first drive plate (12) is fixedly penetrated by a first plate shaft (13), and the outer surface of the first plate shaft (13) is rotatably connected to an end of the first frame bar (11) away from the second convex shaft block (10).

5. The safe sitting posture correction office chair according to claim 1, characterized in that: The outer surface of the waist support (6) is fixedly connected to a second driving plate (14), and the inner side of the second driving plate (14) is fixedly penetrated by a second plate shaft (15).

6. The safe sitting posture correction office chair according to claim 5, characterized in that: A fixed shaft (16) is fixedly connected to the inner side of the fixed frame (2), a second frame bar (17) is rotatably connected to the outer surface of the fixed shaft (16), and an end of the second frame bar (17) away from the fixed shaft (16) is rotatably connected to the outer surface of the second plate shaft (15).

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