An adjustable lumbar support four leaf support back support device

Abstract

The utility model discloses a four -leaf support back support device of adjustable waist backrest, including backplate, be provided with longitudinal adjustment slide rail on the backplate, at least two groups of waist backrest subassembly, and each waist backrest subassembly includes two pieces of waist backrest blade, and four pieces of waist backrest blade constitute four -leaf support structure, install a group of waist backrest subassembly on each longitudinal adjustment panel, the longitudinal adjustment panel is locked with the backplate through a handle locking mechanism, be used for limiting the position of longitudinal adjustment panel in longitudinal adjustment slide rail. Four -leaf support structure that adopts four pieces of waist backrest blade, through the bidirectional adjustment function of longitudinal adjustment panel and horizontal adjustment panel, make waist backrest blade can carry out accurate position adjustment in longitudinal and horizontal two directions, to adapt to the waist back curve of different body build user, provide more close -fitting support effect, increase the use experience effect.

Description

Technical Field

[0001] This utility model relates to a lumbar support device, specifically an adjustable lumbar support four-leaf back support device. Background Technology

[0002] With modern people spending increasingly long hours working at desks, sitting for extended periods, and using electronic devices, back and waist health problems have become a significant concern for many. Maintaining poor posture for extended periods can easily lead to muscle strain in the lower back, spinal deformities, and herniated discs. Therefore, various back support devices have emerged to improve posture during work, study, and daily life and alleviate back fatigue.

[0003] Currently, lumbar support devices on the market can be broadly divided into two categories: ordinary cushion-type and frame-type. Ordinary cushion-type devices mainly provide some support and cushioning through soft filling materials. Their disadvantages are limited support strength, inability to achieve personalized adjustment, and inability to meet the lumbar support needs of different people. Frame-type devices usually use a rigid support frame, conforming to the human body through a fixed-shape support surface. However, due to the large differences in human body size, this type of product is difficult to achieve a perfect fit, and some products have excessively strong rigid support, which can actually cause discomfort in the lumbar and back areas.

[0004] In the process of improving lumbar and back support devices, some adjustable lumbar and back support devices have gradually emerged. For example, some products have a zoned adjustment structure in the lumbar and back area to adapt to the back curves of different users; others use elastic support materials, allowing them to bend and deform within a certain range to adapt to human movement. However, most existing products have the following shortcomings:

[0005] Most existing products use a one-piece support surface or limited adjustment functions, which cannot fully fit the lumbar and back curves of different users, resulting in poor support effect;

[0006] Although some products have adjustment functions, most of them are simple height adjustments with limited lateral adjustment functions, which cannot fully meet the needs of users with different body types.

[0007] Some products have high rigidity and lack flexible cushioning structures, which can easily cause a feeling of pressure after prolonged use and affect the user experience.

[0008] Existing products generally lack a design that follows the body's dynamic movements. When users turn around or change their posture, the lumbar support components cannot adjust flexibly with the body's movements, resulting in the support surface not being able to continuously fit the lumbar and back. Utility Model Content

[0009] To address the aforementioned issues, this invention provides an adjustable lumbar support with a four-leaf back support device. This device allows for differentiated fitting of different lumbar and back areas, offers bidirectional adjustment in both longitudinal and lateral directions, and incorporates elastic support components to achieve dynamic, follow-up lumbar and back support. This caters to the personalized support needs of users with different body types, enhancing support comfort and flexibility.

[0010] This utility model is achieved through the following technical solution: an adjustable lumbar support four-leaf back support device, comprising:

[0011] Back panel, wherein a longitudinal adjustment slide rail is provided on the back panel;

[0012] At least two sets of lumbar support components, each set of lumbar support components includes two lumbar support blades, and the four lumbar support blades form a four-leaf support structure;

[0013] A longitudinal adjustment panel is movably disposed within the longitudinal adjustment slide rail. Each longitudinal adjustment panel is equipped with a set of lumbar support components. The longitudinal adjustment panel is locked to the back plate by a handle locking mechanism to limit the position of the longitudinal adjustment panel within the longitudinal adjustment slide rail.

[0014] A horizontal adjustment panel is movably mounted on both sides of each vertical adjustment panel. A horizontal adjustment groove can be provided on the vertical adjustment panel, and the horizontal adjustment panel is slidably mounted in the horizontal adjustment groove. Each waist support leaf is independently mounted on a horizontal adjustment panel. Each horizontal adjustment panel is provided with a panel locking mechanism, which locks the horizontal position of the horizontal adjustment panel in the vertical adjustment panel.

[0015] As a preferred technical solution, the panel locking mechanism includes a first locking pin disposed on the vertical adjustment panel, a plurality of first locking holes are horizontally disposed on the horizontal adjustment surface corresponding to the first locking pin, a positioning hole is disposed on the side of the first locking pin, and a ball is disposed in the vertical adjustment panel corresponding to the corresponding hole. The ball is snapped into the positioning hole to position the first locking pin, and the first locking pin is inserted into one of the first locking holes on the horizontal adjustment panel.

[0016] As a preferred technical solution, a pull-out portion is provided at the outer end of the horizontal adjustment panel.

[0017] As a preferred technical solution, each lumbar support assembly also includes an elastic connection support assembly, and each lumbar support leaf is fixedly connected to the lateral adjustment panel through the elastic connection support assembly.

[0018] As a preferred technical solution, each of the elastic connection support components includes a first connecting piece, a second connecting piece, and a connecting torsion spring. The first connecting piece is fixedly installed on the horizontal adjustment panel, and the second connecting pieces are fixedly installed on the lumbar support blades. The two connecting ends of the connecting torsion spring are respectively connected to the first connecting piece and the second connecting piece.

[0019] As a preferred technical solution, the handle locking mechanism includes an operating handle, which is hinged to a hinge seat on one side of the longitudinal adjustment panel via a ferrule. A second locking pin is provided on the lower end face of the operating handle. A plurality of second locking holes are provided on the back plate along the longitudinal direction. A spring is fitted on the second locking pin, and the spring pushes the second locking pin outward and engages it in the second locking hole.

[0020] As a preferred technical solution, a guide slider is provided on the back of the longitudinal adjustment panel corresponding to the position of the longitudinal adjustment slide rail, and the guide slider is snapped into the longitudinal adjustment slide rail.

[0021] As a preferred technical solution, each lumbar support leaf is provided with a lumbar support leather cover.

[0022] The beneficial effects of this utility model are: the adjustable lumbar support four-leaf 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.

[0023] 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.

[0024] 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.

[0025] In addition, the device is equipped with a handle locking mechanism and a panel locking mechanism, allowing users to easily adjust the position of the lumbar support blades according to their personal needs and lock them quickly. The adjustment operation is simple and convenient, and it is highly applicable.

[0026] This invention not only meets the personalized support needs of users with different body types, but also significantly improves the comfort and stability of the support, further enhancing the user's sitting experience and playing a positive role in relieving lower back fatigue and preventing lumbar spine diseases. 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 the present invention. Figure 1 ;

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

[0030] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 ;

[0031] Figure 4 This is a cross-sectional schematic diagram of the present invention;

[0032] Figure 5 This is a schematic diagram of the internal structure of the panel locking mechanism lock of this utility model;

[0033] Description of Figure Labels:

[0034] 2. Back panel; 3. Longitudinal adjustment slide rail; 1. Waist support blade; 5. Longitudinal adjustment panel; 9. Lateral adjustment panel; 6. First locking pin; 20. First locking socket; 19. Ball bearing; 8. Pull-out part; 12. First connecting piece; 10. Second connecting piece; 11. Connecting torsion spring; 14. Operating handle; 15. Hinge seat; 17. Second locking pin; 16. Second locking socket; 18. Spring; 4. Guide slider; 7. Connecting torsion spring; 13. Lateral adjustment groove. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] like Figures 1-5As shown, this utility model provides an adjustable lumbar support four-leaf back support device, including a back panel 2, a lumbar support assembly, a longitudinal adjustment panel 5, a transverse adjustment panel 9, a panel locking mechanism, a handle locking mechanism, an elastic connecting support assembly, and a lumbar support leather cover, etc. The various parts are reasonably connected and cooperated to achieve the effect of waist and back fit, comfortable support, and free adjustment.

[0038] The main body of the device is a back plate 2, on which a longitudinal adjustment slide rail 3 is provided. The longitudinal adjustment slide rail 3 extends along the length of the back plate 2 and is used to install the longitudinal adjustment panel 5 and realize the adjustment of the longitudinal position. The longitudinal adjustment panel 5 is movably installed in the longitudinal adjustment slide rail 3. Each longitudinal adjustment panel 5 has a guide slider 4 on its back. The guide slider 4 is snapped into the longitudinal adjustment slide rail 3, so that the longitudinal adjustment panel 5 can slide smoothly along the longitudinal adjustment slide rail 3. In order to fix the position of the longitudinal adjustment panel 5 on the back plate 2, a handle locking mechanism is provided on the longitudinal adjustment panel 5. The handle locking mechanism includes an operating handle 14, a core, a hinge seat 15, a second locking pin 17, and a spring 18.

[0039] like Figure 4 As shown, the hinge base 15 is fixed to one side of the longitudinal adjustment panel 5. The operating handle 14 is hinged to the hinge base 15 via a ferrule. A second locking pin 17 is installed on the lower end face of the operating handle 14. A spring 18 is fitted onto the second locking pin 17, and the spring 18 is fitted on the outside of the second locking pin 17, so that the second locking pin 17 is always in an outward pop-out state under the action of the spring 18. Multiple second locking holes 16 are provided on the back plate 2 along the longitudinal direction. When the longitudinal adjustment panel 5 slides to a suitable position along the longitudinal adjustment slide rail 3, the second locking pin 17 will automatically pop into the second locking hole 16 on the back plate 2 under the action of the spring 18, thereby locking the longitudinal adjustment panel 5 in the current position on the back plate 2. If it is necessary to adjust the position of the longitudinal adjustment panel 5, simply pull the operating handle 14 manually to disengage the second locking pin 17 from the locking hole on the back plate 2, so that the longitudinal adjustment panel 5 can slide along the longitudinal adjustment slide rail 3 to achieve the purpose of longitudinal adjustment.

[0040] Each longitudinal adjustment panel 5 has a lateral adjustment panel 9 movably arranged on both sides. Each longitudinal adjustment panel 5 has a lateral adjustment panel 9 on its left and right sides respectively. The two lateral adjustment panels 9 can slide horizontally on the longitudinal adjustment panel 5 to achieve left and right position adjustment. A lateral adjustment groove can be provided on the longitudinal adjustment panel 5, and the lateral adjustment panel 9 is slidably arranged in the lateral adjustment groove 13.

[0041] A pull-out part 8 is provided on the outer end of the horizontal adjustment panel 9. By manually pulling the pull-out part 8, the horizontal adjustment panel 9 can slide laterally on the vertical adjustment panel 5. Once the horizontal adjustment panel 9 has slid to the desired position, a panel locking mechanism secures it in place. The panel locking mechanism includes a first locking pin 6 on the vertical adjustment panel 5 and a first locking hole 20 on the horizontal adjustment panel 9. Figure 5 As shown;

[0042] The first locking hole 20 is configured in multiple ways along the horizontal direction to form a row of holes, so as to realize the locking of the horizontal adjustment panel 9 in different horizontal positions;

[0043] like Figure 5 As shown, a ball 19 and a positioning hole are also provided on the longitudinal adjustment panel 5. When the first locking pin 6 is inserted into a first locking hole 20 on the transverse adjustment panel 9, the side positioning hole of the first locking pin 6 will correspond to the ball 19. The ball 19 will be engaged in the positioning hole under the action of elasticity, thereby positioning the first locking pin 6 to achieve stable locking of the transverse adjustment panel 9.

[0044] Each horizontal adjustment panel 9 is equipped with a set of lumbar support components. Each set of lumbar support components includes two lumbar support blades 1. The two vertical adjustment panels 5 are equipped with two sets of lumbar support components, so that the four lumbar support blades 1 form a four-leaf support structure.

[0045] The lumbar support blade 1 has an arc-shaped structure, designed to conform to the waist or back of the human body, enhancing user comfort. Each lumbar support blade 1 is independently mounted on the horizontal adjustment panel 9, and the lumbar support blade 1 is connected to the horizontal adjustment panel 9 through an elastic connecting support component, so as to achieve elastic support and moderate swing of the lumbar support blade 1, further enhancing the fit of the lumbar support blade 1 to the human lower back.

[0046] The elastic connection support assembly consists of a first connecting piece 12, a second connecting piece 10, and a connecting torsion spring 7. The first connecting piece 12 is fixedly mounted on the horizontal adjustment panel 9, the second connecting piece 10 is fixedly mounted on the lumbar support leaf 1, and the connecting torsion spring 7 is positioned between the first connecting piece 12 and the second connecting piece 10, with both ends connected to the first connecting piece 12 and the second connecting piece 10, respectively. Through the elastic action of the connecting torsion spring 7, the lumbar support leaf 1 can rotate moderately with the user's body movements, thereby achieving dynamic fit and support for the lower back. A protective shell can be installed on the outside of the connecting torsion spring 7 to enhance its protective effect.

[0047] The lumbar support leaf 1 is wrapped with a lumbar support leather cover. The lumbar support leather cover is made of soft leather material, which can increase the comfort of using the lumbar support leaf 1, and also has a certain protective function to prevent the lumbar support leaf 1 from directly contacting the user and causing discomfort.

[0048] The adjustable lumbar support four-leaf back support device of this utility model realizes the longitudinal adjustment of the lumbar support component through the longitudinal adjustment slide rail 3, the longitudinal adjustment panel 5 and the handle locking mechanism on the back plate 2; and realizes the lateral adjustment of the lumbar support leaf 1 through the lateral adjustment panel 9 and the panel locking mechanism.

[0049] The elastic connection support component between the lumbar support leaf 1 and the horizontal adjustment panel 9 allows the lumbar support leaf 1 to dynamically conform to the user's waist and back as the user moves; the four-leaf support structure composed of four lumbar support leaves 1 effectively distinguishes between the waist and back, providing wraparound support to meet the needs of users of different body types.

[0050] Meanwhile, the adjustment mechanisms of the device are simple in structure and easy to operate. They can achieve dual adjustment of the lumbar support blade 1 in both the horizontal and vertical directions, which is highly flexible and allows users to adjust the position of the lumbar support blade 1 according to their own needs, thereby improving the comfort and support effect.

[0051] 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 adjustable lumbar support backrest device, characterized in that, include: Back panel, wherein a longitudinal adjustment slide rail is provided on the back panel; At least two sets of lumbar support components, each set of lumbar support components includes two lumbar support blades, and the four lumbar support blades form a four-leaf support structure; A longitudinal adjustment panel is movably disposed within the longitudinal adjustment slide rail. Each longitudinal adjustment panel is equipped with a set of lumbar support components. The longitudinal adjustment panel is locked to the back plate by a handle locking mechanism to limit the position of the longitudinal adjustment panel within the longitudinal adjustment slide rail. A horizontal adjustment panel is movably mounted on both sides of each vertical adjustment panel. Each lumbar support leaf is independently mounted on a horizontal adjustment panel. Each horizontal adjustment panel is equipped with a panel locking mechanism to lock the horizontal position of the horizontal adjustment panel in the vertical adjustment panel.

2. The adjustable lumbar support with four-leaf back support device according to claim 1, characterized in that: The panel locking mechanism includes a first locking pin disposed on the vertical adjustment panel. A plurality of first locking holes are horizontally disposed on the horizontal adjustment surface corresponding to the first locking pin. A positioning hole is disposed on the side of the first locking pin. A ball is disposed in the vertical adjustment panel corresponding to the positioning hole. The ball is snapped into the positioning hole to position the first locking pin. The first locking pin is inserted into one of the first locking holes on the horizontal adjustment panel.

3. The adjustable lumbar support with four-leaf back support device according to claim 2, characterized in that: A pull-out section is provided at the outer end of the horizontal adjustment panel.

4. The adjustable lumbar support with four-leaf back support device according to claim 1, characterized in that: Each lumbar support assembly also includes an elastic connection support assembly, and each lumbar support leaf is fixedly connected to the lateral adjustment panel via the elastic connection support assembly.

5. The adjustable lumbar support with four-leaf back support device according to claim 4, characterized in that: Each of the elastic connection support components includes a first connecting piece, a second connecting piece, and a connecting torsion spring. The first connecting piece is fixedly installed on the horizontal adjustment panel, and the second connecting pieces are fixedly installed on the lumbar support blades. The two connecting ends of the connecting torsion spring are respectively connected to the first connecting piece and the second connecting piece.

6. The adjustable lumbar support with four-leaf back support device according to claim 1, characterized in that: The handle locking mechanism includes an operating handle, which is hinged to a hinge seat on one side of the longitudinal adjustment panel via a ferrule. A second locking pin is provided on the lower end face of the operating handle. Multiple second locking holes are provided on the back plate along the longitudinal direction. A spring is fitted on the second locking pin, and the spring pushes the second locking pin outward and engages it in the second locking hole.

7. The adjustable lumbar support four-leaf back support device according to claim 1, characterized in that: A guide slider is provided on the back of the longitudinal adjustment panel corresponding to the position of the longitudinal adjustment slide rail, and the guide slider is snapped into the longitudinal adjustment slide rail.

8. The adjustable lumbar support four-leaf back support device according to claim 1, characterized in that: Each lumbar support leaf is covered with a leather lumbar support sleeve.

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