Depth-adjustable waist supporting structure

Abstract

The utility model relates to a depth-adjustable waist supporting structure, and belongs to the technical field of seat structure design, the depth-adjustable waist supporting structure comprises a mesh plate mounted on a back frame, the mesh plate is arranged to be an elastically-deformable mesh plate, and a plurality of uniformly-distributed deformation holes are formed in the mesh plate. The method has the effect of reducing the adverse effect on the comfort of the user.

Description

Technical Field

[0001] The present application relates to the technical field of seat structure design, and in particular to a lumbar support structure capable of adjusting depth. Background Art

[0002] As people's requirements for seat comfort continue to increase, lumbar support has received widespread attention as a key component of seat comfort. Traditional lumbar support devices usually consist of a back frame fixed to the seat and a support net installed on the back frame. The support net is stretched on the back frame, and the curvature of the back frame is fixed, which cannot meet the needs of different users for lumbar support depth, affecting user comfort. Utility Model Content

[0003] In order to reduce the adverse effects on user comfort, the present application provides a lumbar support structure with adjustable depth.

[0004] The present application provides a depth-adjustable lumbar support structure that adopts the following technical solution:

[0005] A lumbar support structure capable of adjusting depth comprises a mesh plate installed on a back frame, wherein the mesh plate is configured to be elastically deformable and has a plurality of evenly distributed deformation holes.

[0006] By adopting the above technical solution, when the user's back squeezes the mesh plate, the mesh plate undergoes elastic deformation. At this time, the flat mesh plate forms a three-dimensional deformation that adapts to the user's back, and the deformation holes make the mesh plate easier to deform and fit the changes in the curve surface and pressure distribution of the human back, thereby providing dynamic back support for the user and reducing the adverse effects on user comfort.

[0007] Optionally, the deformable holes are arranged in a Y shape and arranged in multiple rows along the height direction of the back frame, and the deformable holes in the lower row are all located on the midline between two adjacent deformable holes in the upper row.

[0008] By adopting the above technical solution, the deformation holes are set to a Y shape and staggered in the vertical direction. At this time, the mesh plate forms a mesh under the action of the deformation holes, thereby forming a negative Poisson's ratio structure, so that the mesh plate forms a three-dimensional deformation that fits the user's back and is not easily damaged, thereby reducing the adverse effects on user comfort while extending the service life of the mesh plate.

[0009] Optionally, the mesh plate is set to be a mesh plate made of PP material.

[0010] Optionally, a back panel mounted on the seat is provided on the side of the back frame away from the mesh panel, the upper end of the back panel is fixed to the upper end of the back frame, the back frame is arranged in an arc shape and is recessed in the direction away from the back panel, and the lower end of the back panel is provided with an adjustment component connected to the lower end of the back frame.

[0011] By adopting the above technical solution, the distance between the lower end of the back frame and the lower end of the back panel is adjusted by adjusting the component. At this time, the curvature of the back frame changes with the distance between the back frame and the back panel, thereby adapting to the different requirements of different users for lumbar support and reducing the adverse effects on user comfort.

[0012] Optionally, the adjustment assembly includes two mounting plates fixedly connected to the back plate and facing the back frame, the sides of the mounting plates facing away from each other are rotatably connected to eccentric wheels, the axis of the eccentric wheel is located on the side of the mounting plate close to the back frame, and the eccentric wheel is plugged into a driving column that coincides with the axis of the eccentric wheel, an adjustment plate adapted to the mounting plate is fixedly connected to the back frame, the adjustment plate contacts the side wall of the eccentric wheel, an adjustment hole is provided on the adjustment plate, the adjustment hole has four rounded corners, the driving column is plugged into one of the corners of the adjustment hole, and two corners of the adjustment hole adjacent to the driving column are provided with rotating columns plugged into the eccentric wheel, and a connecting bridge connecting the two is fixedly connected between the rotating columns.

[0013] By adopting the above technical solution, the driving column drives the eccentric wheel and the rotating column to rotate along the axis of the eccentric wheel toward the back frame. At this time, the rotating column squeezes the adjustment plate at the lower end of the back frame and pushes the adjustment plate to drive the lower end of the back frame to bend toward the back plate. The driving column drives the eccentric wheel and the rotating column to rotate toward the back plate. At this time, the rotating column squeezes the adjustment plate toward the back plate, so that the adjustment plate drives the lower end of the back frame to bend away from the back plate, thereby adjusting the curvature of the back frame to meet the different requirements of different users for lumbar support.

[0014] Optionally, the rotating column and the driving column are both fixedly connected to a same handle on a side away from the eccentric wheel.

[0015] By adopting the above technical solution, the driving handle drives the eccentric wheel to rotate through the driving column. At this time, the rotating column fixed to the handle rotates with the rotation of the handle, which further facilitates squeezing or driving the adjustment plate to move, thereby adjusting the curvature of the back frame and reducing the adverse effects on user comfort.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. When the user's back squeezes the mesh plate, the mesh plate undergoes elastic deformation. At this time, the flat mesh plate forms a three-dimensional deformation that adapts to the user's back, and the deformation holes make it easier for the mesh plate to deform and fit the changes in the back curve and pressure distribution of the human body, thereby providing dynamic back support for the user and reducing the adverse effects on user comfort;

[0018] 2. The deformation holes are set to be Y-shaped and staggered in the vertical direction. At this time, the mesh plate forms a mesh under the action of the deformation holes, thereby forming a negative Poisson's ratio structure, so that the mesh plate forms a three-dimensional deformation that fits the user's back and is not easy to be damaged, thereby reducing the adverse effects on user comfort and extending the service life of the mesh plate;

[0019] 3. The driving column drives the eccentric wheel and the rotating column to rotate along the axis of the eccentric wheel toward the back frame. At this time, the rotating column squeezes the adjustment plate at the lower end of the back frame and pushes the adjustment plate to drive the lower end of the back frame to bend toward the back panel. The driving column drives the eccentric wheel and the rotating column to rotate toward the back panel. At this time, the rotating column squeezes the adjustment plate toward the back panel, so that the adjustment plate drives the lower end of the back frame to bend away from the back panel, thereby adjusting the curvature of the back frame to meet the different requirements of different users for lumbar support. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the depth-adjustable lumbar support structure in an embodiment of the present application.

[0021] Figure 2 It is a structural schematic diagram showing the positional relationship between the back plate and the back frame in the embodiment of the present application.

[0022] Figure 3 It is a structural schematic diagram showing the positional relationship between the back plate and the adjustment component in the embodiment of the present application.

[0023] Figure 4 It is a structural schematic diagram reflecting the positional relationship between the mounting plate and the adjustment plate in the embodiment of the present application.

[0024] Explanation of the accompanying drawings: 1. back plate; 2. back frame; 3. adjustment assembly; 31. mounting plate; 32. eccentric wheel; 321. plug-in rod; 33. adjustment plate; 331. adjustment hole; 3311. first rounded corner; 3312. second rounded corner; 3313. third rounded corner; 3314. fourth rounded corner; 34. handle; 341. drive column; 342. rotating column; 35. connecting bridge; 36. first clamping rod; 37. second clamping rod; 4. mesh plate; 41. deformation hole. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings.

[0026] The present application embodiment discloses a lumbar support structure capable of depth adjustment. Figure 1 and Figure 2 A lumbar support structure capable of depth adjustment comprises a back panel 1 mounted on a seat, a back frame 2 is provided on one side of the back panel 1, and the upper end of the back frame 2 is fixedly connected to the upper end of the back panel 1. The back frame 2 is arranged in an arc shape and is concave in a direction away from the back panel 1, and an adjustment component 3 connected to the lower end of the back frame 2 is provided at the lower end of the back panel 1.

[0027] A mesh plate 4 capable of elastic deformation is installed on the side of the back frame 2 away from the back plate 1. In the embodiment of the present application, the mesh plate 4 is made of PP material. When the mesh plate 4 is at its original length, the mesh plate 4 is flat and is stretched on the back frame 2. A plurality of evenly distributed deformation holes 41 are provided on the mesh plate 4. The deformation holes 41 are arranged in multiple rows along the vertical direction, and the deformation holes 41 in the lower row are all located on the midline of two adjacent deformation holes 41 in the upper row. The deformation holes 41 are arranged in a Y shape.

[0028] When the user's back presses the mesh plate 4, the mesh plate 4 undergoes elastic deformation. At this time, the flat mesh plate 4 forms a three-dimensional deformation adapted to the user's back, and the deformation holes 41 make the mesh plate 4 easier to deform and fit the changes in the curve surface and pressure distribution of the human back, thereby providing dynamic back support for the user, and adjusting the distance between the lower end of the back frame 2 and the lower end of the back plate 1 by adjusting the adjustment component 3. At this time, the curvature of the back frame 2 changes with the distance between the back frame 2 and the back plate 1, thereby adapting to the different requirements of different users for lumbar support.

[0029] The deformation holes 41 are set to be Y-shaped and staggered in the vertical direction. At this time, the mesh plate 4 forms a mesh under the action of the deformation holes 41, and forms a negative Poisson's ratio structure together with the material of the mesh plate 4, so that the mesh plate 4 forms a three-dimensional deformation that fits the user's back while being not easily damaged.

[0030] Reference Figure 2 and Figure 3 The adjustment assembly 3 includes two mounting plates 31 symmetrically arranged at the lower end of the back plate 1 near the back frame 2. The mounting plates 31 are vertical and face the back frame 2. The sides of the mounting plates 31 that are away from each other are rotatably connected with eccentric wheels 32. The axis of the eccentric wheels 32 is located at the end of the mounting plates 31 near the back frame 2. A vertical adjustment plate 33 corresponding to the mounting plates 31 is fixedly connected to the side of the back frame 2 near the back plate 1. The adjustment plates 33 are located at the side of the mounting plates 31 that are away from each other and contact the side of the eccentric wheels 32 that are away from each other.

[0031] Reference Figure 3 and Figure 4, the side of the eccentric wheel 32 close to the corresponding adjustment plate 33 is fixedly connected with two horizontal plug rods 321, and the cross-sections of the plug rods 321 are all set to a cross shape. A handle 34 is provided on the side of the adjustment plate 33 away from the eccentric wheel 32, and a horizontal driving column 341 corresponding to the axis of the eccentric wheel 32 is fixedly connected to the side of the handle 34 close to the eccentric wheel 32, and a horizontal rotating column 342 corresponding to the plug rod 321 is also fixedly connected to the side of the handle 34 close to the eccentric wheel 32. When the end of the driving column 341 away from the handle 34 is plugged into the eccentric wheel 32, the plug rod 321 is inserted into the corresponding rotating column 342, and a connecting bridge 35 connecting the two is fixedly connected between the rotating columns 342.

[0032] Reference Figure 4 The adjusting plate 33 is provided with an adjusting hole 331, which includes four first rounded corners 3311, second rounded corners 3312, third rounded corners 3313 and fourth rounded corners 3314 which are sequentially arranged along the circumference of the eccentric wheel 32 and are interconnected. The driving column 341, the rotating column 342 and the connecting bridge 35 are all located in the adjusting hole 331. When the driving column 341 is located in the first rounded corner 3311, the rotating column 342 is located in the second rounded corner 3312 and the fourth rounded corner 3314 respectively.

[0033] A first clamping rod 36 which is horizontal and coaxial with the eccentric wheel 32 is penetrated and rotatably connected on the mounting plate 31, and a second clamping rod 37 which is adapted to the first clamping rod 36 is penetrated in the handle 34. When the handle 34 is mounted on the eccentric wheel 32, one end of the first clamping rod 36 close to the handle 34 is inserted into the driving column 341 and is threadedly connected with the second clamping rod 37, so that the handle 34 is mounted on the mounting plate 31.

[0034] The handle 34 drives the driving column 341 and the rotating column 342 to drive the eccentric wheel 32 to rotate along the axis of the eccentric wheel 32 toward the direction close to the back frame 2. At this time, the rotating column 342 squeezes the adjustment plate 33 at the lower end of the back frame 2 and pushes the adjustment plate 33 to drive the lower end of the back frame 2 to bend toward the direction close to the back plate 1 until the driving column 341 is located in the fourth fillet 3314, and the rotating column 342 is respectively located in the first fillet 3311 and the third fillet 3313; the driving column 341 and the rotating column 342 are driven to drive the eccentric wheel 32 to rotate toward the direction close to the back plate 1. At this time, the rotating column 342 squeezes the adjustment plate 33 toward the direction close to the back plate 1, so that the adjustment plate 33 drives the lower end of the back frame 2 to bend toward the direction away from the back plate 1, until the driving column 341 is located in the first fillet 3311, and the rotating column 342 is respectively located in the second fillet 3312 and the fourth fillet 3314, thereby adjusting the curvature of the back frame 2 to meet the different requirements of different users for lumbar support.

[0035] The implementation principle of a lumbar support structure with adjustable depth in an embodiment of the present application is as follows: when the user's back squeezes the mesh plate 4, the mesh plate 4 undergoes elastic deformation. At this time, the flat mesh plate 4 forms a three-dimensional deformation adapted to the user's back, and the deformation holes 41 make it easier for the mesh plate 4 to deform and fit the changes in the curved surface and pressure distribution of the human back, thereby providing dynamic back support for the user. The eccentric wheel 32 is driven by the handle 34 to rotate in a direction close to the back frame 2. At this time, the rotating column 342 squeezes the adjustment plate 33 and pushes the adjustment plate 33 to drive the lower end of the back frame 2 to bend in a direction close to the back plate 1, driving the eccentric wheel 32 to rotate in a direction close to the back plate 1. At this time, the rotating column 342 squeezes the adjustment plate 33 in a direction close to the back plate 1, so that the adjustment plate 33 drives the lower end of the back frame 2 to bend in a direction away from the back plate 1, thereby adjusting the different curvatures of the back frame 2 to meet the different requirements of different users for lumbar support.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lumbar support structure capable of adjusting depth, characterized in that: It comprises a mesh plate (4) mounted on a back frame (2), the mesh plate (4) being configured as a mesh plate (4) capable of elastic deformation, and having a plurality of evenly distributed deformation holes (41) formed on the mesh plate (4).

2. A lumbar support structure capable of depth adjustment according to claim 1, characterized in that: The deformable holes (41) are arranged in a Y shape and are arranged in multiple rows along the height direction of the back frame (2), and the deformable holes (41) in the lower row are all located on the midline between two adjacent deformable holes (41) in the upper row.

3. A lumbar support structure capable of depth adjustment according to claim 2, characterized in that: The mesh plate (4) is configured as a mesh plate (4) made of PP material.

4. A depth-adjustable lumbar support structure according to claim 3, characterized in that: A back panel (1) mounted on the seat is provided on the side of the back frame (2) away from the mesh plate (4); the upper end of the back panel (1) is fixed to the upper end of the back frame (2); the back frame (2) is arranged in an arc shape and the back frame (2) is recessed in a direction away from the back panel (1); and an adjustment component (3) connected to the lower end of the back frame (2) is provided at the lower end of the back panel (1).

5. A depth-adjustable lumbar support structure according to claim 4, characterized in that: The adjustment assembly (3) comprises two mounting plates (31) fixedly connected to the back plate (1) and facing the back frame (2); the sides of the mounting plates (31) that are away from each other are both rotatably connected to eccentric wheels (32); the axis of the eccentric wheel (32) is located on the side of the mounting plates (31) close to the back frame (2); and the eccentric wheel (32) is plugged with a driving column (341) that coincides with the axis of the eccentric wheel (32); the back frame (2) is fixedly connected to an adjustment plate (341) that is adapted to the mounting plate (31). 3), the adjustment plate (33) contacts the side wall of the eccentric wheel (32), an adjustment hole (331) is provided on the adjustment plate (33), the adjustment hole (331) has four rounded corners, the driving column (341) is plugged into one of the corners of the adjustment hole (331), two corners of the adjustment hole (331) adjacent to the driving column (341) are provided with rotating columns (342) plugged into the eccentric wheel (32), and a connecting bridge (35) is fixedly connected between the rotating columns (342) to connect the two.

6. A depth-adjustable lumbar support structure according to claim 5, characterized in that: The rotating column (342) and the driving column (341) are both fixedly connected to the same handle (34) on a side away from the eccentric wheel (32).

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