A four-leaf support lumbar device based on button adjustment

Abstract

The utility model discloses a four -leaf support waist device based on button adjustment, including backplate, be set up two groups of waist rest subassembly that can move along the backplate up and down on the backplate, and each group of waist rest subassembly includes two pieces of waist rest vane, key component is set up on each group of waist rest subassembly, and the height position of each waist rest subassembly on the backplate is adjusted through the key component. The utility model discloses through simple key operation can adjust the up and down height position of each vane, and the middle and left and right sides are all set as sliding assembly, and the adjustment is smooth, and will not appear the jam, and each vane of the utility model has the best support angle, makes it can be close to the back and waist, and the experience effect is better.

Description

Technical Field

[0001] This utility model relates to a lumbar support device, specifically a four-leaf lumbar support device based on button adjustment. Background Technology

[0002] Lumbar support devices are widely used in office chairs, car seats, and medical rehabilitation equipment. Their main function is to provide users with good lumbar support, reducing lower back fatigue and spinal discomfort caused by prolonged sitting. Existing lumbar support devices mainly include fixed lumbar supports, inflatable lumbar supports, and adjustable mechanical lumbar supports. Fixed lumbar supports are made of molded filling materials, which can provide some support, but their fixed shape makes it difficult to adapt to the lumbar curves of users of different body types, resulting in low fit and limited comfort. Inflatable lumbar supports change shape by adjusting internal air pressure, providing some adjustment, but their inflation and deflation operations are relatively complex, and they are prone to problems such as air leakage and insufficient durability.

[0003] In recent years, adjustable mechanical lumbar supports have received considerable attention and application. These supports typically employ sliding rails, adjusting racks, or knobs to adjust the height or angle of the lumbar support, improving its adaptability. However, existing adjustable lumbar supports still have the following technical limitations:

[0004] Most existing mechanical lumbar supports only support one-way adjustment, that is, they can only be adjusted in the up-down or back-forward direction, which cannot meet the personalized support needs of different users, resulting in insufficient fit.

[0005] Traditional mechanical lumbar supports generally use a rigid fixed support structure, which lacks elastic cushioning. When users change their sitting posture or perform physical activities, the lumbar support cannot adjust accordingly, which can easily cause pressure and discomfort.

[0006] Some adjustable lumbar support products use complex mechanical structures, and the adjustment method is relatively cumbersome. Users need to manually adjust multiple parts to achieve the ideal support position, which is not convenient to use. Utility Model Content

[0007] To address the aforementioned issues, this invention provides a four-leaf lumbar support device based on button adjustment. The vertical height of each leaf can be adjusted via simple button operation. The middle and left and right sides are designed with sliding assembly, ensuring smooth adjustment without any jamming. Furthermore, each leaf of this invention has an optimal support angle, allowing it to fit snugly against the back and waist for a better user experience.

[0008] This utility model is achieved through the following technical solution: a four-leaf lumbar support device based on button adjustment, comprising:

[0009] The back panel is provided with two sets of lumbar support components that can move up and down along the back panel, and each set of lumbar support components includes two lumbar support leaves;

[0010] A button assembly is installed on each lumbar support assembly, allowing adjustment of the height position of each lumbar support assembly on the back panel;

[0011] Each lumbar support blade is mounted on an adjustment panel via an elastic support assembly, and the maximum inward angle of each lumbar support blade is 50-70°.

[0012] The maximum outward expansion angle of each waist support blade is -10 to -20°, and the optimal support angle of each waist support blade is 20 to 40°.

[0013] As a preferred technical solution, the lumbar support assembly includes a first lumbar support assembly and a second lumbar support assembly. Each lumbar support assembly includes an adjustment panel. The two sides of the back panel are respectively provided with a first guide slide rail, and the middle position of the back panel is provided with a second guide slide rail.

[0014] The adjustment panel has a first sliding part on each side corresponding to the position of the first guide rail, and a second sliding part in the middle of the adjustment panel corresponding to the position of the second guide rail. The first sliding part slides into the first guide rail, and the second sliding part slides into the second guide rail.

[0015] As a preferred technical solution, each button assembly includes an adjustment button, a positioning block, a positioning rod, and a spring. The positioning rod is vertically disposed on the positioning block, and the spring is fitted onto the positioning rod and contacts and supports the adjustment panel. The back plate has one or more positioning holes arranged along the longitudinal direction of the positioning block. The positioning block is snapped into one of the positioning holes. The adjustment button is located at the upper end of the positioning block. By pressing the adjustment button, the positioning block is squeezed, causing the positioning block to separate from the positioning hole.

[0016] As a preferred technical solution, the lower end face of the adjustment button is provided with a driving part, and a first inclined pressing surface is provided on the driving part relative to the position of the positioning block. A second inclined pressing surface is provided on the positioning block corresponding to the second inclined pressing surface, and the first inclined pressing surface and the second inclined pressing surface are in pressing contact.

[0017] As a preferred technical solution, each of the elastic support components includes a connecting piece disposed on the adjustment panel, and a support spring is installed on each connecting piece. One end of the support spring is connected to the connecting piece, and the other end is fixedly connected to a mounting plate. The lumbar support blades are all disposed on the mounting plate.

[0018] As a preferred technical solution, the maximum inward angle of each waist-supporting blade is 60°.

[0019] As a preferred technical solution, the maximum outward expansion angle of each waist-supporting blade is -15°.

[0020] As a preferred technical solution, the optimal support angle for each waist support leaf is 30°.

[0021] As a preferred technical solution, a spring protective sleeve is provided on the outside of the support spring.

[0022] As a preferred technical solution, the inner curvature of the side of each waist-supporting blade is 10°-35°.

[0023] The beneficial effects of this utility model are: by using a button adjustment method, this utility model simplifies the adjustment process of traditional mechanical lumbar supports, allowing users to conveniently and quickly adjust the height and angle of the lumbar support components, avoiding the trouble of complex operation and manual adjustment of multiple parts, and greatly improving the user's convenience.

[0024] Secondly, the four-leaf support design allows the device to form the optimal support angle for the waist and back. By optimizing the maximum inward angle and the optimal support angle of each leaf, the support effect is more fitting and can effectively relieve waist fatigue and spinal discomfort caused by prolonged sitting.

[0025] In addition, the sliding assembly design of the device ensures a smooth adjustment process, avoids jamming, and improves the stability and comfort of the product.

[0026] Furthermore, the elastic support components provide appropriate cushioning as the sitting posture changes, further enhancing the user's comfort experience. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0030] Figure 3 This is a partial enlarged view of the button assembly of this utility model;

[0031] Figure 4 This is a schematic diagram of the angular layout of this utility model;

[0032] Explanation of reference numerals in the attached figures:

[0033] 3. Back panel; 1. First lumbar support assembly; 2. Second lumbar support assembly; 8. Adjustment panel; 4. Button assembly; 17. Adjustment button; 16. Positioning block; 15. Positioning rod; 6. First guide slide rail; 10. Second guide slide rail; 7. First sliding part; 9. Second sliding part; 13. Positioning hole; 14. First inclined pressing surface; 71. Connecting piece; 12. Support spring; 11. Mounting plate; 5. Spring protective sleeve. Detailed Implementation

[0034] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0035] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0036] like Figures 1-3 As shown, this utility model provides a four-leaf lumbar support device based on button adjustment. The device includes a back plate 3, on which are provided two sets of lumbar support components that can move up and down along the back plate 3. Each set of lumbar support components consists of two lumbar support leaves. The height of the lumbar support components is adjusted by a button component 4, allowing the user to adjust the support height of the lumbar support according to their own needs to adapt to different heights and sitting postures.

[0037] like Figure 4 As shown, each lumbar support leaf is mounted on an adjustment panel 8 via an elastic support assembly and can be adjusted within a certain range of angles. Specifically, the maximum inward angle of each lumbar support leaf is set between 50-70°, the maximum outward angle is set between -10--20°, and the optimal support angle is set between 20-40° to ensure that the lumbar support leaves provide support without creating excessive pressure. This angle setting ensures that the lumbar support leaves can provide appropriate support and cushioning for the lower back within different angle ranges, both closely conforming to the lower back and effectively distributing pressure, thereby improving user comfort.

[0038] The lumbar support assembly includes a first lumbar support assembly 1 and a second lumbar support assembly 2, each of which includes an adjustment panel 8. First guide rails 6 are respectively provided on both sides of the back panel 3, and a second guide rail 10 is provided in the middle to form a stable sliding guide structure. First sliding portions 7 are respectively provided on both sides of the adjustment panel 8, corresponding to the first guide rails 6, while a second sliding portion 9 is provided in the middle of the adjustment panel 8, matching the second guide rail 10. Through this structure, the adjustment panel 8 can slide along the guide rails, ensuring that the lumbar support assembly is stable and smooth during adjustment, without any shaking or jamming, allowing users to easily adjust the height of the lumbar support.

[0039] The button assembly 4 is used to control the height adjustment of the lumbar support assembly. Each button assembly 4 includes an adjustment button 17, a positioning block 16, a positioning rod 15, and a spring. The positioning rod 15 is vertically mounted on the positioning block 16, and the spring is fitted onto the positioning rod 15 and contacts and supports the adjustment panel 8. The back plate 3 has multiple positioning holes 13 arranged along the longitudinal direction of the positioning block 16. The positioning block 16 is snapped into one of the positioning holes 13 to fix the position of the lumbar support assembly.

[0040] When the user presses the adjustment button 17, the button moves the positioning block 16 downwards, disengaging it from the positioning hole 13. The user can then freely slide the adjustment panel 8 to adjust the height of the lumbar support assembly. When the user releases the adjustment button 17, the spring force causes the positioning block 16 to automatically spring back and re-engage in the new positioning hole 13, thus fixing its position. This adjustment method simplifies the complex adjustment operation of traditional mechanical lumbar supports, allowing users to adjust the height more quickly and conveniently, thus improving ease of use.

[0041] Furthermore, to ensure that the adjustment button 17 can smoothly drive the positioning block 16 out of the positioning hole 13 when pressed, a driving part is provided on the lower end face of the adjustment button 17. The driving part has a first inclined pressing surface 14 at a corresponding position on the positioning block 16, and a second inclined pressing surface is correspondingly provided on the positioning block 16. The first inclined pressing surface 14 and the second inclined pressing surface cooperate with each other, and through the pressing force of the inclined surfaces, the positioning block 16 can smoothly disengage from the positioning hole 13 after being subjected to force, further improving the smoothness and stability of the adjustment.

[0042] To provide comfortable support, each lumbar support leaf is mounted on the adjustment panel 8 via an elastic support assembly, which consists of a connecting piece 71, a support spring 12, and a mounting plate 11. The connecting piece 71 is fixedly mounted on the adjustment panel 8 and is used to mount the support spring 12.

[0043] One end of the support spring 12 is connected to the connecting piece 71, and the other end is fixedly connected to the mounting plate 11, while the lumbar support leaf is mounted on the mounting plate 11;

[0044] This structure allows the lumbar support blades to provide support while also offering moderate elastic cushioning as the sitting posture changes, effectively improving comfort and reducing pressure on the lower back. To further enhance the durability and protection of the support spring 12, a spring protective sleeve 5 is also provided on the outside of the support spring 12 to prevent dust or other foreign objects from entering the spring and affecting its elastic performance.

[0045] Regarding the angle settings of the lumbar support blades, the maximum inward angle of each blade is preferably 60°, the maximum outward angle is preferably -15°, and the optimal support angle is preferably 30°. This optimized setting ensures that the lumbar support blades provide the best support effect during use, giving the lower back good support, preventing discomfort caused by prolonged sitting, and effectively relieving lower back fatigue and spinal pressure.

[0046] In this embodiment, the optimal angle of the internal curvature of each lumbar support leaf is 26 degrees, which is also currently recognized as the most comfortable angle for the waist.

[0047] This invention allows users to quickly adjust the height and angle of the lumbar support component by means of button adjustment, without having to manually adjust multiple parts, thus simplifying the operation process and improving the user experience.

[0048] The four-leaf support design creates a reasonable support angle for the waist and back, and combined with elastic support components, it ensures proper cushioning when changing sitting posture, effectively reducing the burden on the waist.

[0049] Furthermore, the device's sliding assembly structure ensures smooth adjustment, preventing jamming and improving overall stability and comfort. This device not only optimizes lumbar support but also enhances ease of adjustment and user comfort, making it widely applicable to individuals who work in a seated position for extended periods or require lumbar support, providing a more scientific and reasonable support solution.

[0050] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A four-leaf lumbar support device based on button adjustment, characterized in that, include: The back panel is provided with two sets of lumbar support components that can move up and down along the back panel, and each set of lumbar support components includes two lumbar support leaves; A button assembly is installed on each lumbar support assembly, allowing adjustment of the height position of each lumbar support assembly on the back panel; Each lumbar support blade is mounted on an adjustment panel via an elastic support assembly, and the maximum inward angle of each lumbar support blade is 50-70°. The maximum outward expansion angle of each waist support blade is -10 to -20°, and the optimal support angle of each waist support blade is 20 to 40°.

2. The four-leaf lumbar support device based on button adjustment according to claim 1, characterized in that: The lumbar support assembly includes a first lumbar support assembly and a second lumbar support assembly. Each lumbar support assembly includes an adjustment panel. The back panel is provided with a first guide slide rail on both sides and a second guide slide rail in the middle of the back panel. The adjustment panel has a first sliding part on each side corresponding to the position of the first guide rail, and a second sliding part in the middle of the adjustment panel corresponding to the position of the second guide rail. The first sliding part slides into the first guide rail, and the second sliding part slides into the second guide rail.

3. The four-leaf lumbar support device based on button adjustment according to claim 1, characterized in that: Each button assembly includes an adjustment button, a positioning block, a positioning rod, and a spring. The positioning rod is vertically mounted on the positioning block, and the spring is fitted onto the positioning rod and contacts and supports the adjustment panel. The back plate has one or more positioning holes arranged along the longitudinal direction of the positioning block. The positioning block is snapped into one of the positioning holes. The adjustment button is located at the upper end of the positioning block. By pressing the adjustment button, the positioning block is squeezed, causing the positioning block to separate from the positioning hole.

4. The four-leaf lumbar support device based on button adjustment according to claim 3, characterized in that: The lower end face of the adjustment button is provided with a driving part, and a first inclined pressing surface is provided on the driving part relative to the position of the positioning block. A second inclined pressing surface is provided on the positioning block corresponding to the first inclined pressing surface, and the first inclined pressing surface and the second inclined pressing surface are pressed into contact.

5. The four-leaf lumbar support device based on button adjustment according to claim 1, characterized in that: Each of the elastic support components includes a connecting piece disposed on the adjustment panel. Each connecting piece is equipped with a support spring. One end of the support spring is connected to the connecting piece, and the other end is fixedly connected to a mounting plate. Each lumbar support blade is disposed on the mounting plate.

6. The four-leaf lumbar support device based on button adjustment according to claim 1, characterized in that: Each waist support leaf has a maximum inward angle of 60°.

7. The four-leaf lumbar support device based on button adjustment according to claim 1, characterized in that: The maximum outward expansion angle of each waist-supporting leaf is -15°.

8. The four-leaf lumbar support device based on button adjustment according to claim 1, characterized in that: The optimal support angle for each lumbar support leaf is 30°.

9. The four-leaf lumbar support device based on button adjustment according to claim 5, characterized in that: A spring protective sleeve is provided on the outside of the support spring.

10. The four-leaf lumbar support device based on button adjustment according to claim 1, characterized in that: The inner curvature of the side of each waist-supporting leaf is 10°-35°.

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