Waist support capable of being adjusted in multiple directions and having waist chasing function

By using a multi-directional adjustable lumbar support design, and employing a two-way screw and memory alloy spring in conjunction with an air pressure bladder, the problem of lumbar supports being unable to adapt to the lumbar curves of different users is solved, achieving dynamic support and comfortable wear.

CN224112355UActive Publication Date: 2026-04-14HANGZHOU BOZHI FURNITURE DESIGN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Most existing lumbar supports are fixed in shape or adjustable in only one direction, which cannot adapt to the different waist curves and dynamic activity needs of different users, thus affecting their applicability.

Method used

The device employs a bidirectional screw to drive the adjusting block for multi-directional adjustment, combined with a memory alloy spring and a pneumatic bladder to automatically adjust the support force, and with the help of a rotating joint and locking assembly, ensures that the device conforms to the waist curve.

Benefits of technology

It features multi-directional lumbar support adjustment to adapt to different users' lumbar curves, reduce fatigue, prevent shifting and pressure, and improve user comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multidirectional adjusting waist support with a waist chasing function, which comprises a base, an adjusting mechanism is arranged on the outer surface of the base, a rotary joint is fixedly connected to the outer surface of the base, a supporting component is arranged on the outer surface of the adjusting mechanism, a locking component is arranged on the outer surface of the base, and the locking component is fixedly connected to the rotary joint. An auxiliary assembly is arranged on the outer surface of the base. According to the device, the adjusting block is driven by the two-way screw rod to realize left-right synchronous adjustment, so that the device can adapt to waist widths of different users, and the problem that the application range of the device is affected to a certain extent due to the fact that the fixed-form or single-direction adjustable lumbar support cannot adapt to waist curves and dynamic activity requirements of different users can be effectively solved; meanwhile, the memory alloy spring is matched with the air pressure bag, so that the equipment can automatically adjust the supporting force along with the waist movement and always fit the waist curve, the fatigue feeling of the user is effectively reduced, and the equipment is prevented from shifting or generating the pressed body feeling when the user moves.
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Description

Technical Field

[0001] This utility model relates to the field of ergonomic support device technology, and in particular to a lumbar support with multi-directional adjustment and waist-supporting function. Background Technology

[0002] Lumbar supports primarily stem from the need for lumbar support and are widely used in the treatment of lumbar injuries, lumbar spine diseases, or postoperative rehabilitation. Their original design purpose is to provide external support, reduce the burden on the lower back, relieve pain, and promote recovery.

[0003] Currently, most lumbar supports adopt a fixed shape or a single-direction adjustable setting. However, lumbar supports with a fixed shape or a single-direction adjustable setting cannot adapt to the different waist curves and dynamic activity needs of different users, which will have a certain impact on the applicability of the equipment. To address this issue, we propose a lumbar support with multi-directional adjustment and waist tracking function. Utility Model Content

[0004] The purpose of this invention is to provide a lumbar support with multi-directional adjustment and waist-tracking function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-directional adjustable lumbar support with a waist-supporting function includes a base, an adjustment mechanism on the outer surface of the base, a rotating joint fixedly connected to the outer surface of the base, a support component on the outer surface of the adjustment mechanism, a locking component on the outer surface of the base, and an auxiliary component on the outer surface of the base.

[0007] In a further embodiment, the adjusting mechanism includes a bidirectional screw, an adjusting groove is formed on the outer surface of the base, a set of adjusting blocks are slidably connected inside the adjusting groove, each adjusting block has a threaded hole through its outer surface, a set of auxiliary shafts are embedded in the inner wall of the adjusting groove, the inner ring of the auxiliary shafts is fixedly connected to the outer surface of the bidirectional screw, the outer surface of the bidirectional screw is threadedly connected to the inside of the threaded hole, and a rotating block is fixedly connected to the outer surface of the bidirectional screw.

[0008] In a further embodiment, the support assembly includes a set of connecting plates, the outer surface of each connecting plate is fixedly connected to the outer surface of the adjusting block, a force-bearing plate is fixedly connected to the outer surface of each connecting plate, a conforming curved surface is fixedly connected to the outer surface of each force-bearing plate, a set of memory alloy springs is provided on the outer surface of each conforming curved surface, a pressure bladder is provided on the outer surface of each conforming curved surface, and a support base plate is fixedly connected to the outer surface of the rotary joint.

[0009] In a further embodiment, the locking assembly includes a locking device, the auxiliary assembly includes an adapter shaft, and the outer surface of the base has an auxiliary hole.

[0010] In a further embodiment, an auxiliary rod is threaded into the internal part of the auxiliary hole, and the inner ring of the adapter shaft is fixedly connected to the outer surface of the auxiliary rod.

[0011] In a further embodiment, the outer surface of the base is provided with an elastic pad, and the outer surface of the base is provided with a set of Velcro straps.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device uses a bidirectional screw to drive an adjusting block, enabling synchronous left and right adjustment. This allows the device to adapt to different users' waist widths, effectively solving the problem that fixed-shape or single-direction adjustable lumbar support devices cannot adapt to different users' waist curves and dynamic activity needs, thus affecting the device's applicability. At the same time, it uses a memory alloy spring in conjunction with a pneumatic bladder, allowing the device to automatically adjust the support force with waist movement, always conforming to the waist curve. This effectively reduces user fatigue and prevents the device from shifting or causing a feeling of pressure during user activity. Attached Figure Description

[0014] Figure 1 A frontal three-dimensional structural diagram of a lumbar support with multi-directional adjustment and waist-tracking function.

[0015] Figure 2 A side view of the three-dimensional structure of a lumbar support with multi-directional adjustment and waist-tracking function.

[0016] Figure 3 A three-dimensional sectional view of a lumbar support with multi-directional adjustment and waist-tracking function.

[0017] Figure 4 A top-view three-dimensional structural diagram of a lumbar support with multi-directional adjustment and waist-tracking function.

[0018] In the diagram: 1. Base; 2. Locking assembly; 201. Locking device; 3. Adjustment mechanism; 301. Two-way screw; 302. Adjusting block; 303. Threaded hole; 304. Adjustment groove; 305. Auxiliary shaft; 306. Rotating block; 4. Auxiliary assembly; 401. Adaptor shaft; 402. Auxiliary rod; 403. Auxiliary hole; 5. Elastic washer; 6. Velcro; 7. Support assembly; 701. Connecting plate; 702. Force plate; 703. Fitting curved surface; 704. Memory alloy spring; 705. Air pressure bladder; 706. Support base plate; 8. Rotary joint. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4In this utility model, a multi-directional adjustable lumbar support with a waist-tracking function includes a base 1. An adjustment mechanism 3 is provided on the outer surface of the base 1. The adjustment mechanism 3 includes a bidirectional screw 301. An adjustment groove 304 is formed on the outer surface of the base 1. A set of adjustment blocks 302 are slidably connected inside the adjustment groove 304. Each adjustment block 302 has a threaded hole 303 penetrating its outer surface. A set of auxiliary shafts 305 are embedded in the inner wall of the adjustment groove 304. The inner ring of the auxiliary shafts 305 is fixedly connected to the outer surface of the bidirectional screw 301. The outer surface of the bidirectional screw 301 is threadedly connected to the inside of the threaded hole 303. A rotating block 306 is fixedly connected to the outer surface of the bidirectional screw 301. The base 1 serves as the main frame, and the adjustment mechanism 3 is connected via the bidirectional screw 301. The adjustment groove 304 extends horizontally through the base 1. Simultaneously, both ends of the bidirectional screw 301 are fixed within the adjustment groove 304 via auxiliary shafts 305. Adjustment blocks 302 engage with the bidirectional screw 301 through threaded holes 303, allowing them to slide within the adjustment groove 304. Rotary blocks 306 are fixed to the outer end of the bidirectional screw 301 for manual rotation adjustment. Rotating the rotary blocks 306, in conjunction with the bidirectional screw 301, drives the adjustment blocks 302 on both sides to move synchronously in opposite directions, effectively achieving precise adjustment of the waist support width. This allows the equipment to adapt to different waist sizes. The auxiliary shafts 305 ensure smooth rotation of the bidirectional screw 301, effectively preventing jamming or misalignment. Furthermore, the ergonomic design of the rotary blocks 306 makes adjustment easier.

[0023] A rotary joint 8 is fixedly connected to the outer surface of the base 1. A support assembly 7 is provided on the outer surface of the adjustment mechanism 3. The support assembly 7 includes a set of connecting plates 701. The outer surface of each connecting plate 701 is fixedly connected to the outer surface of the adjustment block 302. A force-bearing plate 702 is fixedly connected to the outer surface of each connecting plate 701. A fitting curved surface 703 is fixedly connected to the outer surface of each force-bearing plate 702. A set of memory alloy springs 704 is provided on the outer surface of each fitting curved surface 703. A pressure bladder 705 is provided on the outer surface of each fitting curved surface 703. A support base plate 706 is fixedly connected to the outer surface of the rotary joint 8. The rotary joint 8 is fixed to the base 1. The support base plate 706 is connected to the rotary joint 8. The device allows for multi-angle adjustment. The connecting plate 701 is fixed to the adjusting block 302, while the force plate 702 is rigidly connected to the connecting plate 701. The fitted curved surface 703 covers the surface of the force plate 702. The memory alloy spring 704 and the air pressure bag 705 are embedded in the fitted curved surface 703 to provide elastic support. The support base plate 706 can be tilted back and forth by rotating the joint 8, allowing the device to adapt to different sitting or standing postures. The memory alloy spring 704 automatically adjusts its shape according to body temperature and pressure, and the air pressure bag 705 disperses the pressure, ensuring that the fitted curved surface 703 always fits snugly against the waist curve. The use of flexible materials in contact with the human body reduces hard contact and can effectively avoid discomfort caused by prolonged wear.

[0024] The outer surface of the base 1 is provided with a locking assembly 2 and an auxiliary assembly 4. The locking assembly 2 includes a locking device 201, and the auxiliary assembly 4 includes an adapter shaft 401. An auxiliary hole 403 is provided on the outer surface of the base 1, and an auxiliary rod 402 is threaded into the auxiliary hole 403. The inner ring of the adapter shaft 401 is fixedly connected to the outer surface of the auxiliary rod 402. An elastic washer 5 and a set of Velcro 6 are provided on the outer surface of the base 1. The locking device 201 of the locking assembly 2 is installed on the side of the base 1 to fix the position of the adjustment mechanism 3. The auxiliary rod 402 of the auxiliary component 4 is connected to the auxiliary hole 403 by a thread. The adapter shaft 401 is sleeved on the auxiliary rod 402, which can finely adjust the support force. The locking device 201 can quickly lock the adjustment mechanism 3, which can effectively prevent the lumbar support from loosening or shifting during use. The support strength can be adjusted by the auxiliary rod 402, which can effectively adapt to the different users' needs for the softness and hardness of the lumbar support. The elastic pad 5 is provided to compensate for the assembly gap between the seat and the base 1. The Velcro 6 is used to fix the position of the lumbar support, which can effectively improve the convenience of using the equipment.

[0025] The working principle of this utility model is as follows:

[0026] When using the device, the user first drives the bidirectional screw 301 to rotate by rotating the rotating block 306, which drives the two side adjustment blocks 302 to move synchronously in opposite directions within the adjustment groove 304, thereby adjusting the lateral distance between the connecting plate 701 and the force plate 702 to accommodate different waist widths. Then, the user adjusts the tilt angle of the support base plate 706 by rotating the joint 8. With the elastic deformation of the memory alloy spring 704 and the air pressure bag 705, the fitting surface 703 dynamically fits the waist curve. Finally, the user fixes the waist support position with Velcro 6, locks the adjustment mechanism 3 with the locking component 2, and uses the auxiliary component 4 to fine-tune the support pressure through the auxiliary rod 402 to achieve multi-directional adjustment and real-time waist tracking function.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-directional adjustable lumbar support with a waist-supporting function, characterized in that: Includes a base (1), an adjustment mechanism (3) is provided on the outer surface of the base (1), a rotary joint (8) is fixedly connected to the outer surface of the base (1), a support component (7) is provided on the outer surface of the adjustment mechanism (3), a locking component (2) is provided on the outer surface of the base (1), and an auxiliary component (4) is provided on the outer surface of the base (1).

2. The lumbar support with multi-directional adjustment and waist-tracking function according to claim 1, characterized in that: The adjustment mechanism (3) includes a bidirectional screw (301), and the outer surface of the base (1) is provided with an adjustment groove (304). A set of adjustment blocks (302) are slidably connected inside the adjustment groove (304). The outer surface of each adjustment block (302) is provided with a threaded hole (303) that penetrates the adjustment block (302). A set of auxiliary shafts (305) are embedded in the inner wall of the adjustment groove (304). The inner ring of the auxiliary shaft (305) is fixedly connected to the outer surface of the bidirectional screw (301). The outer surface of the bidirectional screw (301) is threadedly connected to the inside of the threaded hole (303). A rotating block (306) is fixedly connected to the outer surface of the bidirectional screw (301).

3. The lumbar support with multi-directional adjustment and waist-tracking function according to claim 1, characterized in that: The support assembly (7) includes a set of connecting plates (701), the outer surface of each connecting plate (701) is fixedly connected to the outer surface of the adjusting block (302), the outer surface of each connecting plate (701) is fixedly connected to a force plate (702), the outer surface of each force plate (702) is fixedly connected to a fitting surface (703), the outer surface of each fitting surface (703) is provided with a set of memory alloy springs (704), the outer surface of each fitting surface (703) is provided with an air pressure bladder (705), and the outer surface of the rotating joint (8) is fixedly connected to a support base plate (706).

4. The lumbar support with multi-directional adjustment and waist-tracking function according to claim 1, characterized in that: The locking assembly (2) includes a locking device (201), the auxiliary assembly (4) includes an adapter shaft (401), and the outer surface of the base (1) is provided with an auxiliary hole (403).

5. The lumbar support with multi-directional adjustment and waist-tracking function according to claim 4, characterized in that: The auxiliary hole (403) is internally threaded with an auxiliary rod (402), and the inner ring of the adapter shaft (401) is fixedly connected to the outer surface of the auxiliary rod (402).

6. The lumbar support with multi-directional adjustment and waist-tracking function according to claim 1, characterized in that: The outer surface of the base (1) is provided with an elastic pad (5), and the outer surface of the base (1) is provided with a set of Velcro (6).