Dynamic spring waist and back surrounding supporting structure

Abstract

The utility model discloses a dynamic spring waist-back surrounding supporting structure which comprises a back plate, two groups of waist rest assemblies capable of moving up and down along the back plate are arranged on the back plate, each group of waist rest assembly comprises two waist rest blades, the two waist rest blades can be adjusted in the left-right direction, and the four waist rest blades form a surrounding supporting structure. The adjusting knobs are arranged on the back of the back plate, each adjusting knob corresponds to one waist rest assembly, and each waist rest assembly is adjusted to move up and down on the back plate through the adjusting knobs. The four-blade surrounding supporting mode is adopted, the more flexible and comfortable supporting effect can be provided, the height of the waist leaning blades can be rapidly adjusted through the adjusting knob, and the adaptability, the fitting degree and the use convenience of the waist leaning device can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waist rest device, concretely relates to a dynamic spring waist and back surrounding support structure. BACKGROUND

[0002] The waist and back support device is widely applied in office chairs, automobile seats and medical rehabilitation equipment, and its main function is to provide good waist and back support for users and reduce waist fatigue and spine discomfort caused by long-time sitting posture. The existing waist and back support device mainly includes a fixed waist rest, an inflatable waist rest and an adjustable mechanical waist rest. Among them, the fixed waist rest is made of a shaped filling material, which can provide a certain supporting effect, but due to its fixed shape, it is difficult to adapt to the waist curve of users with different body shapes, the fitting degree is low, and the use comfort is limited. The inflatable waist rest changes the shape of the waist rest by adjusting the internal air pressure to provide a certain adjusting function, but the inflation and deflation operation is relatively complex, and problems such as air leakage and insufficient durability are prone to occur.

[0003] In recent years, the adjustable mechanical waist rest has attracted more attention and application. This kind of waist rest usually adopts slide rails, adjusting racks or knob adjusting mechanisms to realize the adjustment of the height or angle of the waist rest and improve the adaptability of the support. However, the existing adjustable waist rest still has the following technical limitations:

[0004] Most of the existing mechanical waist rests only support one-way adjustment, that is, they can only be adjusted in the up-down or front-back direction, which cannot meet the individualized support needs of different users, resulting in insufficient fitting degree;

[0005] The traditional mechanical waist rest generally adopts a rigid fixed support structure and lacks elastic buffering capability. When the user changes the sitting posture or performs physical activities, the waist rest cannot adjust dynamically, which is easy to cause compression and discomfort;

[0006] Some adjustable waist rest products adopt a complex mechanical structure, and the adjusting method is relatively complicated. The user needs to manually adjust multiple components to reach the ideal support position, which is not convenient to use. INVENTION CONTENTS

[0007] In order to solve the above problems, the utility model provides a dynamic spring waist and back surrounding support structure, which adopts a four-leaf surrounding support method and can provide more flexible and comfortable support effect to improve the adaptability, fitting degree and use convenience of the waist rest.

[0008] The utility model is realized through the following technical schemes: a dynamic spring waist and back surrounding support structure, comprising:

[0009] A back plate is provided with two groups of waist rest assemblies capable of moving up and down along the back plate, each group of waist rest assemblies comprises two pieces of waist rest blades, and the four pieces of waist rest blades form a surrounding support structure.

[0010] Adjustment knobs are located on the back of the back panel. Each adjustment knob corresponds to a lumbar support component. The up and down movement of each lumbar support component on the back panel is adjusted by adjusting the knobs.

[0011] As a preferred technical solution, the lumbar support assembly includes a first lumbar support assembly and a second lumbar support assembly, and two sets of guide rails are longitudinally arranged on the back panel, with the first lumbar support assembly and the second lumbar support assembly slidably disposed within the guide rails.

[0012] As a preferred technical solution, the first lumbar support assembly further includes a first adjusting rack, and the second lumbar support assembly further includes a second adjusting rack. The opposing surfaces of the first adjusting rack and the second adjusting rack are provided with driving tooth grooves. The driving end of the adjusting knob is located between the driving tooth grooves on both sides. By rotating the adjusting knob, the first adjusting rack or the second adjusting rack can be driven to move up and down.

[0013] As a preferred technical solution, the adjustment knob includes a first adjustment knob and a second adjustment knob. Both the first adjustment knob and the second adjustment knob are provided with a first drive head and a second drive head. The first drive head and the second drive head are engaged in the drive tooth groove to drive the first adjustment rack and the second adjustment rack to move up and down.

[0014] As a preferred technical solution, a guide slide rod is provided on both the first adjusting rack and the second adjusting rack, and the guide slide rod is slidably disposed in the guide groove opened in the back plate.

[0015] As a preferred technical solution, a fixed cover is also provided on the back plate corresponding to the first adjustment knob and the second adjustment knob.

[0016] As a preferred technical solution, the first lumbar support assembly further includes a first adjustment panel, and the second lumbar support assembly further includes a second adjustment panel. The first adjustment panel is fixedly installed on the first adjustment rack, and the second adjustment panel is fixedly installed on the second adjustment rack. The first adjustment panel and the second adjustment panel move up and down with the first adjustment rack and the second adjustment rack.

[0017] As a preferred technical solution, a first connecting piece is fixedly provided on each of the first adjustment surfaces, and a second connecting piece is fixedly provided on the back of each of the waist rest blades. A connecting torsion spring is provided between the first connecting piece and the second connecting piece, and the two connecting ends of the connecting torsion spring are fixedly connected to the first connecting piece and the second connecting piece.

[0018] The beneficial effects of this utility model are: the four-leaf adjustable back support device provided by this utility model can effectively solve the problems of insufficient fit, limited adjustment range, poor comfort and insufficient flexibility in the existing technology.

[0019] The device uses a four-leaf support structure composed of four lumbar support blades. Through the bidirectional adjustment function of the longitudinal and lateral adjustment panels, the lumbar support blades can be precisely adjusted in both the longitudinal and lateral directions to adapt to the back curves of users of different body types and provide a more fitting support effect.

[0020] Meanwhile, each lumbar support leaf is connected to the horizontal adjustment panel through an elastic connection support component. This component can generate a certain follow-up elastic support effect when the user changes sitting posture or body dynamics, so that the lumbar support leaf can be flexibly adjusted with body movements, effectively avoiding the discomfort caused by traditional rigid support products when turning or changing posture.

[0021] Finally, this invention allows for easy adjustment of the vertical position of the four lumbar support blades simply by rotating the adjustment knob on the back, and the structure is simple. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the back structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the first adjusting rack of this utility model;

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Back panel; 2. Lumbar support blade; 9. Guide slide rail; 10. First adjusting rack; 16. Second adjusting rack; 15. Drive tooth groove; 11. First adjusting knob; 12. Second adjusting knob; 13. First drive head; 14. Second drive head; 17. Guide slide rod; 5. Fixed cover; 3. First adjusting panel; 4. Second adjusting panel; 7. First connecting piece; 6. Second connecting piece; 8. Connecting torsion spring. Detailed Implementation

[0030] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.

[0031] 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.

[0032] like Figures 1-5 As shown, this utility model discloses a dynamic spring lumbar support structure, including a back plate 1. Two sets of lumbar support components are mounted on the back plate 1, each capable of moving up and down along the back plate 1. Each lumbar support component includes two lumbar support blades 2, and the four lumbar support blades 2 together form a surround support structure, thus providing more comprehensive and close support for the user's lower back. To facilitate adjustment of the lumbar support components to adapt to different user body curves, adjustment knobs are provided on the back of the back plate 1. Each adjustment knob corresponds to one lumbar support component. By rotating the adjustment knobs, each lumbar support component can be moved up and down on the back plate 1 to adjust the height of the lumbar support blades 2.

[0033] To further optimize the adjustment structure and make the movement of the lumbar support assembly more stable and smooth, the lumbar support assembly specifically includes a first lumbar support assembly and a second lumbar support assembly. Two sets of guide rails 9 are longitudinally arranged on the back panel 1, and the first and second lumbar support assemblies are slidably mounted within the guide rails 9. This arrangement ensures that the lumbar support assembly always moves along the guide rails during its up-and-down movement, preventing lateral swaying or deviation and effectively guaranteeing the stability of the adjustment process.

[0034] To facilitate the movement of the lumbar support components via adjustment knobs, each lumbar support component is also equipped with an adjustment rack. The first lumbar support component includes a first adjustment rack 10, and the second lumbar support component includes a second adjustment rack 16. Both the first and second adjustment racks 10 and 16 have drive grooves 15 on their opposite surfaces, and the drive end of the adjustment knob is located between the two drive grooves 15. By rotating the adjustment knob, the user can move either the first or second adjustment rack 10 up or down on the back panel 1, thereby adjusting the position of the lumbar support components.

[0035] Furthermore, to achieve independent adjustment, each lumbar support component includes a first adjustment knob 11 and a second adjustment knob 12. Each adjustment knob is equipped with a first drive head 13 and a second drive head 14. The first drive head 13 and the second drive head 14 engage with the drive tooth groove 15 on the adjustment rack to drive the first adjustment rack 10 and the second adjustment rack 16 to move up and down. With the above structure, the independent position adjustment of the first lumbar support component and the second lumbar support component can be achieved, making the lumbar support blades 2 more conform to the user's back curve requirements.

[0036] To further improve the stability of the adjustment rack in conjunction with the back plate 1 during movement, guide rods 17 are provided on both the first adjustment rack 10 and the second adjustment rack 16. The guide rods 17 are slidably disposed within guide grooves opened on the back plate 1. When the user adjusts the rack movement by turning the knob, the guide rods 17 slide along the guide grooves, ensuring that the rack maintains smooth operation during up and down movement without shaking or jamming.

[0037] Considering the potential for loosening or detachment of the adjustment knobs over long-term use, a fixing cover 5 is provided on the back plate 1 corresponding to the first adjustment knob 11 and the second adjustment knob 12 to protect the knobs and rack components. The fixing cover 5 covers the adjustment knobs and rack transmission parts, which not only effectively prevents dust and debris from entering the gear grooves and affecting the transmission, but also provides a certain degree of protection and fixation, making the overall structure more robust and reliable.

[0038] To ensure that the lumbar support components maintain a consistent fit between the lumbar support blades 2 and the user's back during vertical movement, each lumbar support component is equipped with an adjustment panel. The first lumbar support component includes a first adjustment panel 3, and the second lumbar support component includes a second adjustment panel 4. The first adjustment panel 3 is fixedly mounted on the first adjustment rack 10, and the second adjustment panel 4 is fixedly mounted on the second adjustment rack 16. When the first adjustment rack 10 and the second adjustment rack 16 move up and down under the action of the adjustment knob, the first adjustment panel 3 and the second adjustment panel 4 rise and fall synchronously, thereby adjusting the overall position of the lumbar support blades 2.

[0039] To further enhance the responsiveness and fit of the lumbar support blades 2 during user movement, a first connecting piece 7 is fixedly mounted on the first adjustment panel 3, and a second connecting piece 6 is fixedly mounted on the back of the lumbar support blades 2. A connecting torsion spring 8 is positioned between the first connecting piece 7 and the second connecting piece 6, with its two ends fixedly connected to the first connecting piece 7 and the second connecting piece 6, respectively. When the user changes their sitting posture or engages in dynamic movement, the connecting torsion spring 8 can generate appropriate elastic deformation, causing the lumbar support blades 2 to fine-tune with the user's movements, creating a responsive elastic support effect and avoiding the pressure and discomfort caused by traditional rigid support structures when the user's posture changes.

[0040] This dynamic spring-loaded lumbar support structure features two sets of lumbar support components on the back plate 1 that can move up and down, providing precise support for the lumbar and back at different heights. The four lumbar support blades 2, forming a wraparound support structure, enhance the fit between the blades and the user's back. The height of the lumbar support components can be adjusted using a knob, rack, and guide rail 9, making operation simple and convenient. The elastic connection between the adjustment panel, connecting piece, and torsion spring 8 allows the lumbar support blades 2 to provide adaptive elastic support as the user's posture changes or their body moves, further improving the comfort and flexibility of the lumbar support device. The overall structure is simple, easy to adjust, and highly adaptable, effectively solving problems such as insufficient fit, limited adjustment range, poor comfort, and lack of flexibility in existing lumbar support products.

[0041] 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 dynamic spring-loaded lumbar support structure, characterized in that, include: Back plate (1), on which two sets of lumbar support components that can move up and down along the back plate (1) are provided. Each set of lumbar support components includes two lumbar support blades (2), and the four lumbar support blades (2) form a surrounding support structure. Adjustment knobs are located on the back of the back panel (1). Each adjustment knob corresponds to a lumbar support assembly. The up and down movement of each lumbar support assembly on the back panel (1) can be adjusted by adjusting the knobs.

2. The dynamic spring waist and back support structure according to claim 1, characterized in that: The lumbar support assembly includes a first lumbar support assembly and a second lumbar support assembly. Two sets of guide rails (9) are longitudinally arranged on the back plate (1). The first lumbar support assembly and the second lumbar support assembly are slidably arranged in the guide rails (9).

3. The dynamic spring waist and back support structure according to claim 2, characterized in that: The first lumbar support assembly further includes a first adjusting rack (10), and the second lumbar support assembly further includes a second adjusting rack (16). The opposing surfaces of the first adjusting rack (10) and the second adjusting rack (16) are provided with drive tooth grooves (15). The drive end of the adjusting knob is located between the drive tooth grooves (15) on both sides. By rotating the adjusting knob, the first adjusting rack (10) or the second adjusting rack (16) can be driven to move up and down.

4. The dynamic spring waist and back support structure according to claim 3, characterized in that: The adjustment knob includes a first adjustment knob (11) and a second adjustment knob (12). The first adjustment knob (11) and the second adjustment knob (12) are each provided with a first drive head (13) and a second drive head (14). The first drive head (13) and the second drive head (14) are engaged in the drive tooth groove (15) to drive the first adjustment rack (10) and the second adjustment rack (16) to move up and down.

5. The dynamic spring waist and back support structure according to claim 4, characterized in that: Both the first adjusting rack (10) and the second adjusting rack (16) are provided with a guide slide rod (17), which is slidably disposed in the guide slide groove opened in the back plate (1).

6. The dynamic spring waist and back support structure according to claim 5, characterized in that: A fixed cover (5) is also provided on the back plate (1) corresponding to the first adjustment knob (11) and the second adjustment knob (12).

7. The dynamic spring waist and back support structure according to claim 3, characterized in that: The first lumbar support assembly further includes a first adjustment panel (3), and the second lumbar support assembly further includes a second adjustment panel (4). The first adjustment panel (3) is fixedly installed on the first adjustment rack (10), and the second adjustment panel (4) is fixedly installed on the second adjustment rack (16). The first adjustment panel (3) and the second adjustment panel (4) move up and down with the first adjustment rack (10) and the second adjustment rack (16).

8. The dynamic spring waist and back support structure according to claim 7, characterized in that: A first connecting piece (7) is fixedly provided on the first adjustment surface, and a second connecting piece (6) is fixedly provided on the back of the waist support blade (2). A connecting torsion spring (8) is provided between the first connecting piece (7) and the second connecting piece (6), and the two connecting ends of the connecting torsion spring (8) are fixedly connected to the first connecting piece (7) and the second connecting piece (6).

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