Waist support structure of human engineering chair

Abstract

The utility model relates to the field of human engineering chairs, and discloses a waist support structure of a human engineering chair, which comprises a connecting plate, a first elastic net is fixed on the inner wall of a waist support frame, a rotating hole is arranged on one side of the inner wall of a U-shaped frame, a rotating plate is fixed at one end of a first bolt, the rotating plate is rotatably arranged in the rotating hole, and the first elastic net is fixed on the connecting plate. A waist jacking frame is detachably arranged on the rear side of the outer wall of the U-shaped frame, a mounting plate is fixed to the front side of the outer wall of the waist jacking frame, a limiting hole is formed in the rear side of the outer wall of a connecting plate, a limiting column is fixed to the front side of the outer wall of the U-shaped frame, and the limiting column is inserted into the limiting hole in a sliding mode. According to the utility model, the front and back positions of the waist support frame are adjusted to obtain the best support and comfort, so that a user can find the most suitable sitting posture, thereby promoting the formation of a good sitting posture, facilitating the reduction of the pressure of the waist and the back, and ensuring that the lumbar vertebra is correctly supported.

Description

Technical Field

[0001] The utility model relates to the technical field of ergonomic chairs, in particular to a waist support structure of an ergonomic chair. Background Art

[0002] Chairs are an indispensable piece of furniture in people's daily office and life. Chairs are very practical and can be found in every room. Their main function is to facilitate people's rest, so their comfort is the main criterion for measuring the quality of a chair. Currently, office workers generally spend their office time on chairs. Due to long periods of sitting and incorrect sitting postures, office workers suffer from cervical spondylosis, lumbar disc herniation and other diseases to varying degrees. With the advancement of science and technology and the improvement of people's living standards, healthy living has gradually become the focus of people's attention. Healthy, ergonomic office chairs can effectively reduce the probability of suffering from the above-mentioned diseases.

[0003] According to the Chinese patent publication number: CN215959090U, an ergonomic chair for supporting arms, waist and head includes a pillow support, a chair back, a chair surface and armrests. The chair back includes a back support portion and a waist support portion connected up and down. The chair back is fixed to the rear of the chair surface by a first fixing device, and the height is adjusted by the first fixing device. The pillow support is fixed to the upper end of the chair back by a second fixing device, and the elevation angle of the support surface of the pillow support is adjusted by the second fixing device. The pillow support leans backward, and the support surface of the pillow support is in an elevation state. The head rests on the support surface of the pillow support so that the cervical spine can naturally be in a slightly extended state. The armrest is adjusted in height by a height adjustment device, and the left and right positions of the armrest are adjusted by a left and right adjustment device.

[0004] In the above scheme, the top waist component is installed behind the chair back and then the top waist component provides support for the lumbar support part, which leads to the following disadvantages: when the chair is in use, the position of the top waist component is fixed and cannot be adjusted, so that the lumbar spine cannot be properly supported, resulting in reduced user comfort. Utility Model Content

[0005] The utility model aims to provide a lumbar support structure for an ergonomic chair to solve the problem that when the chair is in use, the position of the top lumbar part is fixed and cannot be adjusted, so that the lumbar spine cannot be properly supported, resulting in reduced user comfort.

[0006] In order to achieve the above-mentioned utility model objectives, the utility model adopts the following technical solutions: a lumbar support structure of an ergonomic chair, comprising a connecting plate, the connecting plate is fixed to the front side of the outer wall of the lumbar support frame, the inner wall of the lumbar support frame is fixed with a first elastic net, the outer wall rear side of the connecting plate is provided with a first threaded hole, the first threaded hole is threadedly connected with a first bolt, the outer wall rear side of the connecting plate is movably provided with a U-shaped frame, one side of the inner wall of the U-shaped frame is provided with a rotating hole, one end of the first bolt is fixed with a rotating plate, the rotating plate is rotatably arranged in the rotating hole, the outer wall rear side of the U-shaped frame is detachably provided with a top waist frame, the outer wall front side of the top waist frame is fixed with a mounting plate, the inner wall of the top waist frame is fixed with a second elastic net, the outer wall rear side of the connecting plate is provided with a limiting hole, the outer wall front side of the U-shaped frame is fixed with a limiting column, and the limiting column can be slidably inserted in the limiting hole.

[0007] Preferably, a connecting hole is provided on one side of the outer wall of the mounting plate, a driving motor is fixed to the front side of the outer wall of the mounting plate, an output shaft of the driving motor is rotatably arranged in the connecting hole, a rotating disk is fixed to the output shaft of the driving motor, a plurality of rotating grooves are provided at the rear end of the rotating disk, and massage rollers are rotatably arranged inside the plurality of rotating grooves.

[0008] Preferably, a sponge is fixed to the rear side of the outer wall of the top waist frame.

[0009] Preferably, two fixing holes are provided on the right side of the outer wall of the sponge, and heating rods are respectively fixed to the inner walls of the two fixing holes.

[0010] Preferably, fixing plates are respectively fixed on the top and bottom surfaces of the U-shaped frame, thread grooves are respectively provided on the top and bottom surfaces of the mounting plate, second threaded holes are respectively provided on the top surfaces of the two fixing plates, second bolts are respectively threadedly connected to the two second threaded holes, and the threaded ends of the two second bolts are respectively connected to the internal threads of the two thread grooves.

[0011] Preferably, the thickness of the sponge is 1 cm.

[0012] Compared with the prior art, the lumbar support structure of an ergonomic chair using the above technical solution has the following beneficial effects:

[0013] 1. During use, the top waist frame is adjusted forward and backward to obtain the best support and comfort, so that users can find the sitting posture that suits them best, thereby promoting the formation of a good sitting posture, reducing the pressure on the waist and back, and ensuring that the lumbar spine is properly supported;

[0014] 2. During use, the driving motor, rotating disk, and massage roller can help massage the user's waist, effectively relieve the tension and fatigue of the waist muscles, improve the overall relaxation effect, reduce the pressure brought by work or study, and improve work efficiency and learning effects. The sponge can be appropriately shaped according to the user's waist shape, thereby providing more personalized and comfortable support, and at the same time can help disperse the pressure when the waist contacts the chair back, which is conducive to reducing the pressure and discomfort that may occur when sitting for a long time;

[0015] 3. During use, the heating rod can provide warm heat, which can help relax the waist muscles and promote blood circulation. It can effectively relieve the stiffness and discomfort of the waist caused by sitting for a long time. In a cold environment, the heating function can provide extra warmth, increasing the user's comfort and satisfaction. The fixing plate and the second bolt can help users disassemble and assemble the top waist frame and the mounting plate, which makes it easier for the staff to maintain or replace the top waist frame, the mounting plate, the rotating disk, and the drive motor, making maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 It is an exploded schematic diagram of an embodiment.

[0018] Figure 3 It is an exploded schematic diagram of the connecting plate and the U-shaped frame in the embodiment.

[0019] Figure 4 It is a schematic diagram of the explosion of the mounting plate and the rotating disk in the embodiment.

[0020] In the figure: 1. connecting plate; 2. waist support frame; 3. first elastic net; 4. first threaded hole; 5. first bolt; 6. U-shaped frame; 7. rotating hole; 8. rotating plate; 9. waist support frame; 10. mounting plate; 11. second elastic net; 12. limiting hole; 13. limiting column; 14. connecting hole; 15. driving motor; 16. rotating disk; 17. rotating groove; 18. massage roller; 19. sponge; 20. fixing hole; 21. heating rod; 22. fixing plate; 23. threaded groove; 24. second threaded hole; 25. second bolt. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-Figure 4As shown, a lumbar support structure of an ergonomic chair comprises a connecting plate 1, which is fixed to the front side of the outer wall of a lumbar support frame 2, a first elastic net 3 is fixed to the inner wall of the lumbar support frame 2, a first threaded hole 4 is opened on the rear side of the outer wall of the connecting plate 1, a first bolt 5 is threadedly connected to the first threaded hole 4, a U-shaped frame 6 is movably arranged on the rear side of the outer wall of the connecting plate 1, a rotating hole 7 is opened on one side of the inner wall of the U-shaped frame 6, a rotating plate 8 is fixed to one end of the first bolt 5, the rotating plate 8 is rotatably arranged in the rotating hole 7, a top waist frame 9 is detachably arranged on the rear side of the outer wall of the U-shaped frame 6, a mounting plate 10 is fixed to the front side of the outer wall of the top waist frame 9, a second elastic net 11 is fixed to the inner wall of the top waist frame 9, a limiting hole 12 is opened on the rear side of the outer wall of the connecting plate 1, a limiting column 13 is fixed on the front side of the outer wall of the U-shaped frame 6, and the limiting column 13 is slidably inserted in the limiting hole 12.

[0023] In use, the waist support frame 9 is used to support the user's waist. By rotating the first bolt 5, the rotating plate 8 rotates inside the rotating hole 7, so that the U-shaped frame 6 moves forward and backward, thereby driving the waist support frame 9 to adjust its forward and backward position. At this time, the limiting holes 12 and the limiting columns 13 are used to limit the U-shaped frame 6 to prevent the U-shaped frame 6 from rotating, thereby improving the stability of the U-shaped frame 6 during movement. By adjusting the front and back position of the waist support frame 9 to obtain the best support and comfort, the user can find the sitting posture that suits him best, thereby promoting the formation of a good sitting posture, reducing the pressure on the waist and back, and ensuring that the lumbar spine is properly supported.

[0024] like Figure 2 and Figure 4 As shown, a connecting hole 14 is formed on one side of the outer wall of the mounting plate 10, a driving motor 15 is fixed to the front side of the outer wall of the mounting plate 10, the output shaft of the driving motor 15 is rotatably arranged in the connecting hole 14, a rotating disk 16 is fixed to the output shaft of the driving motor 15, a plurality of rotating grooves 17 are formed at the rear end of the rotating disk 16, and massage rollers 18 are rotatably arranged inside the plurality of rotating grooves 17.

[0025] During use, by driving the motor 15, the rotating disk 16 and the massage roller 18, the user's waist can be massaged, which can effectively relieve the tension and fatigue of the waist muscles, improve the overall relaxation effect, reduce the pressure caused by work or study, and improve work efficiency and learning effects.

[0026] like Figure 2 As shown, a sponge 19 is fixed to the rear side of the outer wall of the top waist frame 9, and two fixing holes 20 are opened on the right side of the outer wall of the sponge 19. The inner walls of the two fixing holes 20 are respectively fixed with heating rods 21.

[0027] In use, the sponge 19 can be appropriately shaped according to the user's waist shape, thereby providing more personalized and comfortable support, and at the same time can help disperse the pressure when the waist contacts the chair back, which is conducive to reducing the pressure and discomfort that may occur when sitting for a long time. The heating rod 21 is conducive to providing warm heat, which can help relax the waist muscles and promote blood circulation. It has a good effect on relieving the stiffness and discomfort of the waist caused by sitting for a long time. In a cold environment, the heating function can provide additional warmth to increase the comfort and satisfaction of the user.

[0028] like Figure 2-Figure 4 As shown, the top and bottom surfaces of the U-shaped frame 6 are respectively fixed with fixing plates 22, the top and bottom surfaces of the mounting plate 10 are respectively provided with threaded grooves 23, the top surfaces of the two fixing plates 22 are respectively provided with second threaded holes 24, the two second threaded holes 24 are respectively threadedly connected with second bolts 25, the threaded ends of the two second bolts 25 are respectively connected with the internal threads of the two threaded grooves 23, and the thickness of the sponge 19 is 1 cm.

[0029] During use, the fixing plate 22 and the second bolt 25 facilitate the user to disassemble and assemble the top waist frame 9 and the mounting plate 10, and then facilitate the staff to maintain or replace the top waist frame 9, the mounting plate 10, the rotating disk 16, and the driving motor 15, making maintenance more convenient.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lumbar support structure for an ergonomic chair, comprising a connecting plate (1), wherein the connecting plate (1) is fixed to the front side of the outer wall of a lumbar support frame (2), characterized in that: A first elastic net (3) is fixed to the inner wall of the waist support frame (2); a first threaded hole (4) is provided on the rear side of the outer wall of the connecting plate (1); a first bolt (5) is threadedly connected to the first threaded hole (4); a U-shaped frame (6) is movably provided on the rear side of the outer wall of the connecting plate (1); a rotating hole (7) is provided on one side of the inner wall of the U-shaped frame (6); a rotating plate (8) is fixed to one end of the first bolt (5); the rotating plate (8) is rotatably arranged in the rotating hole (7); a top waist frame (9) is detachably provided on the rear side of the outer wall of the U-shaped frame (6); a mounting plate (10) is fixed on the front side of the outer wall of the top waist frame (9); a second elastic net (11) is fixed to the inner wall of the top waist frame (9); a limiting hole (12) is provided on the rear side of the outer wall of the connecting plate (1); a limiting column (13) is fixed on the front side of the outer wall of the U-shaped frame (6); the limiting column (13) is slidably inserted in the limiting hole (12).

2. The lumbar support structure of an ergonomic chair according to claim 1, characterized in that: A connection hole (14) is formed on one side of the outer wall of the mounting plate (10); a driving motor (15) is fixed to the front side of the outer wall of the mounting plate (10); an output shaft of the driving motor (15) is rotatably arranged in the connection hole (14); a rotating disk (16) is fixed to the output shaft of the driving motor (15); a plurality of rotating grooves (17) are formed at the rear end of the rotating disk (16); massage rollers (18) are rotatably arranged inside the plurality of rotating grooves (17).

3. The lumbar support structure of an ergonomic chair according to claim 2, characterized in that: A sponge (19) is fixed to the rear side of the outer wall of the top waist frame (9).

4. The lumbar support structure of an ergonomic chair according to claim 3, characterized in that: Two fixing holes (20) are provided on the right side of the outer wall of the sponge (19), and heating rods (21) are respectively fixed to the inner walls of the two fixing holes (20).

5. The lumbar support structure of an ergonomic chair according to claim 4, characterized in that: The top and bottom surfaces of the U-shaped frame (6) are respectively fixed with fixing plates (22); the top and bottom surfaces of the mounting plate (10) are respectively provided with threaded grooves (23); the top surfaces of the two fixing plates (22) are respectively provided with second threaded holes (24); the two second threaded holes (24) are respectively threadedly connected with second bolts (25); and the threaded ends of the two second bolts (25) are respectively threadedly connected with the inner threads of the two threaded grooves (23).

6. The lumbar support structure of an ergonomic chair according to claim 3, characterized in that: The thickness of the sponge (19) is 1 cm.

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