Self-adapting adjustable net chair

Abstract

The utility model discloses a self -adaptation adjustable net chair, including chair back and waist rest, still include regulation handle and connecting axle spare, the connecting lug no.

Description

Technical Field

[0001] This utility model belongs to the field of mesh chair technology and relates to an adaptive adjustable mesh chair. Background Technology

[0002] Mesh chairs are innovative seating options that combine ergonomic design with modern technology. They utilize highly elastic, breathable mesh fabric as their primary material, forming a three-dimensional support structure through precise weaving technology. This effectively distributes body pressure and provides excellent ventilation. These chairs typically feature adjustable armrests, lumbar support, and headrests. However, current mesh chairs on the market offer relatively limited lumbar support adjustment, mostly providing fixed positions or only one direction of adjustment, failing to meet personalized support needs and achieve adaptive adjustment. Therefore, designing an adaptive adjustable mesh chair to address these issues is particularly necessary. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides an adaptive adjustable mesh chair.

[0004] To achieve the above objectives, the technical solution of this utility model is: an adaptive adjustable mesh chair, including a backrest and a lumbar support, characterized in that it further includes an adjustment handle and a connecting shaft. The connecting ear one on the upper part of the lumbar support is rotatably connected to the connecting ear two in the middle of the backrest through the connecting shaft. The adjustment handle is horizontally rotatably connected to the positioning part in the middle of the backrest. The auxiliary plate on the upper part of the lumbar support can contact the gear plate in the middle of the adjustment handle. The gear plate includes a high part, a middle part, and a low part. The three locking holes in the middle of the adjustment handle correspond one-to-one with the positions of the high part, the middle part, and the low part. A spring plunger is fixed in the mounting groove in the middle of the backrest, and the locking head of the spring plunger can be engaged in any of the locking holes. A spring is also installed between the auxiliary plate and the connecting groove in the middle of the backrest.

[0005] Each of the control handles has an operating handle at its end.

[0006] The control handle is rotatably connected to the positioning part in the middle of the chair back via a mounting block.

[0007] The auxiliary plate also has a limiting head that cooperates with the spring.

[0008] By adopting the above technical solution, the beneficial effects of this utility model are: In this invention, when the user needs strong lumbar support, the control handle can be rotated so that the high part of the gear shift plate contacts the auxiliary plate. Under the pressure of the high part, the lumbar support will protrude forward more, providing a closer fit and support for the lumbar region. If the user prefers moderate support, the control handle can be rotated to the middle position to contact the auxiliary plate. The forward protrusion of the lumbar support is moderate, providing some support without causing a feeling of pressure. When the user wants more room for lumbar movement or prefers gentler support, the control handle can be rotated to the low position to contact the auxiliary plate. At this time, the lumbar support will not protrude forward much under the pressure of the low position, and the support strength will be correspondingly reduced. This allows for three levels of support intensity to adapt to the lumbar support needs of different users. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ; Figure 3 This is an exploded view of this utility model; Figure 4 This is a three-dimensional structural diagram of the removed portion of this utility model; Figure 5 This is a magnified view of a portion of point A; Figure 6 This is a three-dimensional structural diagram of the lumbar support in this utility model; Figure 7 This is a three-dimensional structural diagram of the control handle in this utility model. Figure 1 ; Figure 8 This is a three-dimensional structural diagram of the control handle in this utility model. Figure 2 ; In the diagram, 1. Chair back; 1a. Mounting groove; 1b. Connecting groove; 1c. Positioning part; 1d. Connecting ear 2; 2. Mounting block; 3. Control handle; 3a. Gear plate; 3a1. High position part; 3a2. Middle position part; 3a3. Low position part; 3b. Lock hole; 3c. Operating handle; 4. Spring; 5. Lumbar support; 5a. Connecting ear 1; 5b. Auxiliary plate; 5b1. Limiting head; 6. Connecting shaft; 7. Spring plunger. Detailed Implementation

[0010] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0011] like Figure 1-8As shown, this adaptive adjustable mesh chair includes a backrest 1 and a lumbar support 5, as well as an adjustment handle 3 and a connecting shaft 6. The connecting ear 5a on the upper part of the lumbar support 5 is rotatably connected to the connecting ear 1d in the middle of the backrest 1 via the connecting shaft 6. The adjustment handle 3 is horizontally rotatably connected to the positioning part 1c in the middle of the backrest 1. The auxiliary plate 5b on the upper part of the lumbar support 5 can contact the gear shift plate 3a in the middle of the adjustment handle 3. The gear shift plate 3a includes a high position 3a1, a middle position 3a2, and a low position 3a3. The three locking holes 3b in the middle of the adjustment handle 3 are respectively connected to the high position 3a1, the middle position 3a2, and the low position 3a3. The positions are one-to-one. A spring plunger 7 is fixed at the mounting groove 1a in the middle of the backrest 1, and the locking head of the spring plunger 7 can be locked into any of the locking holes 3b. During the rotation of the control handle 3, the locking head of the spring plunger 7 will automatically lock into the corresponding locking hole 3b, ensuring that the gear plate 3a is stable in the selected gear and avoiding gear shift due to force during use. A spring 4 is also installed between the auxiliary plate 5b and the connecting groove 1b in the middle of the backrest 1. When in use, the user leans against the lumbar support 5, and the spring 4 makes the lumbar support 5 more elastic for the waist, improving the user's comfort when sitting for a long time.

[0012] The control handle 3 has an operating handle 3c at each end, which allows the control handle 3 to be rotated.

[0013] The control handle 3 is rotatably connected to the positioning part 1c in the middle of the chair back 1 via the mounting block 2. This is achieved by using existing technology to assemble the control handle 3.

[0014] The auxiliary plate 5b also has a limiting head 5b1 that cooperates with the spring 4. The spring 4 is reliably fixed by the cooperation of the limiting head 5b1 and the mounting groove 1a.

[0015] In this invention, when the user needs strong lumbar support, the control handle 3 can be rotated so that the high part 3a1 of the gear plate 3a contacts the auxiliary plate 5b. Under the pushing action of the high part 3a1, the lumbar support 5 will protrude forward more, providing a closer fit and support for the waist. If the user prefers moderate support, the control handle 3 can be rotated to the middle part 3a2 to contact the auxiliary plate 5b. The forward protrusion of the lumbar support 5 is moderate, providing some support to the waist without causing a feeling of pressure. When the user wants more room for waist movement or prefers gentler support, the control handle 3 can be rotated to the low part 3a3 to contact the auxiliary plate 5b. At this time, the lumbar support 5 will not protrude forward much under the pushing action of the low part 3a3, and the support strength will be correspondingly reduced. This allows for three levels of support intensity to adapt to the lumbar support needs of different users.

[0016] In summary, this design cleverly combines mechanical structure with elastic elements, allowing users to easily personalize the lumbar support strength according to their body type, sitting habits, and different usage scenarios, truly adapting to the user's lumbar needs.

[0017] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0018] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. An adaptive adjustable mesh chair, comprising a backrest (1) and a lumbar support (5), characterized in that, It also includes an adjustment handle (3) and a connecting shaft (6). The connecting ear 1 (5a) on the upper part of the lumbar support (5) is rotatably connected to the connecting ear 2 (1d) in the middle of the backrest (1) via the connecting shaft (6). The adjustment handle (3) is horizontally rotatably connected to the positioning part (1c) in the middle of the backrest (1). The auxiliary plate (5b) on the upper part of the lumbar support (5) can contact the gear plate (3a) in the middle of the adjustment handle (3). The gear plate (3a) includes a high part (3a1) and a middle part (3a2). The three locking holes (3b) in the middle of the control handle (3) correspond one-to-one with the positions of the high part (3a1), the middle part (3a2) and the low part (3a3). A spring plunger (7) is fixed at the mounting groove (1a) in the middle of the chair back (1), and the locking head of the spring plunger (7) can be inserted into any one of the locking holes (3b). A spring (4) is also installed between the auxiliary plate (5b) and the connecting groove (1b) in the middle of the chair back (1).

2. The adaptive adjustable mesh chair according to claim 1, characterized in that, The control handle (3) has an operating handle (3c) at its end.

3. The adaptive adjustable mesh chair according to claim 1, characterized in that, The control handle (3) is rotatably connected to the positioning part (1c) in the middle of the backrest (1) via the mounting block (2).

4. The adaptive adjustable mesh chair according to claim 1, characterized in that, The auxiliary plate (5b) also has a limiting head (5b1) that cooperates with the spring (4).

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