Ergonomic sofa lumbar support device

Abstract

The utility model discloses an ergonomic sofa waist support device, including main part, adjusting mechanism and contact mechanism, the adjusting mechanism includes motor and lead screw, the contact mechanism includes contact piece and spring, under the mutual cooperation of above -mentioned mechanism, this device can be adjusted the position of waist support according to own height, sitting posture or comfortable demand freely of user, so that everybody can obtain the best comfort and support effect, in addition, the device passes through the self -adaptation characteristic of elastic assembly, and the waist support will be adjusted automatically along with the change of user's weight and sitting posture, ensures that every user can obtain the best support at different time points.

Description

Technical Field

[0001] This utility model relates to the field of home furnishing tools technology, specifically to an ergonomic sofa lumbar support device. Background Technology

[0002] First, the lumbar support device of traditional sofas is not well-adjustable. If the position of the lumbar support device cannot be adjusted, it may cause discomfort to some users, especially when their height and body shape do not match the default design position.

[0003] Secondly, traditional sofas cannot adapt to users of different body types. Without elastic adaptive adjustment, users may encounter situations where the support is too firm or too soft, depending on their weight, leading to a decrease in comfort.

[0004] Finally, if the seat cushions and backrests cannot be replaced, cleaning will be more troublesome, especially in environments with pets, children, or high-frequency use, where bacteria and odors can easily grow. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, this utility model provides an ergonomic sofa lumbar support device to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an ergonomic sofa lumbar support device, comprising a main body, an adjustment mechanism, and a contact mechanism. The adjustment mechanism includes a motor and a lead screw. The motor is fixedly installed inside the main body. One end of the lead screw is fixedly installed on the motor and rotatably connected to the main body. A lifting frame is installed on the lead screw. A first roller is installed on the lifting frame. The lifting frame slides inside the main body. The first roller is installed in the lifting frame and is rotatably connected to the lifting frame and slidably connected to the main body. The contact mechanism includes a contact element and a spring. One end of the spring is fixedly connected to the lifting frame. The contact element is installed in the lifting frame and slidably connected to the lifting frame. A second roller is installed on the contact element.

[0009] Preferably, the main body is equipped with a seat cushion and a backrest cushion, which are connected to the main body to facilitate the leaning of the human body.

[0010] In a further preferred embodiment, the lifting frame is provided with threaded holes, the lead screw is connected to the threaded holes, the main body is provided with a first sliding groove, and the lifting frame is slidably connected to the first sliding groove to facilitate the operation of the lifting frame.

[0011] In a further preferred embodiment, the first slide groove is provided with a second slide groove, the first roller slides in the second slide groove, the main body is provided with a first limiting groove, and the lifting frame slides in the first limiting groove, which facilitates the stable sliding of the lifting frame.

[0012] In a further preferred embodiment, the lifting frame is provided with a first limiting block and a through rod, the first limiting block being slidably connected to a first limiting groove, and the through rod being slidably connected to a contact member, facilitating the directional sliding of the contact member.

[0013] In a further preferred embodiment, the contact member is provided with a second limiting block, and the lifting frame is provided with a second limiting groove. The second limiting block and the second limiting groove are slidably connected to facilitate the directional sliding of the contact member.

[0014] In a further preferred embodiment, a shock-absorbing block is fixedly installed on the contact element, and a fitting groove is provided on the main body. The cushion is connected to the fitting groove to improve the comfort of the main body.

[0015] In a further preferred embodiment, an isolation pad is provided at the bottom of the main body, which facilitates the protection of the main body.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides an ergonomic sofa lumbar support device, which has the following beneficial effects:

[0018] By setting an adjustment mechanism, this invention allows users to freely adjust the position of the lumbar support according to their height, sitting posture, or comfort needs, through the coordinated action of components such as the motor and lead screw, so that everyone can obtain the best comfort and support effect.

[0019] In this invention, by setting up a contact mechanism, under the mutual cooperation of contact components and springs, the device automatically adjusts the lumbar support according to changes in the user's weight and sitting posture through the adaptive characteristics of the elastic components, ensuring that each user can obtain the best support at different times.

[0020] By incorporating seat cushions and backrest cushions, this invention allows for the regular replacement of these cushions, ensuring the sofa remains clean and hygienic, and preventing odors or bacterial growth caused by the accumulation of sweat and stains. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an ergonomic sofa lumbar support device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle;

[0023] Figure 3 This is a cross-sectional view of the internal structure of the main body in this utility model;

[0024] Figure 4 This is the connection method between the lifting frame and the lead screw in this utility model;

[0025] Figure 5 This is an exploded view of the contact mechanism in this utility model.

[0026] In the diagram: 1. Main body; 2. Motor; 3. Lead screw; 4. Lifting frame; 5. First roller; 6. Contact element; 7. Spring; 8. Second roller; 9. Seat cushion; 10. Backrest cushion; 11. Threaded hole; 12. First slide groove; 13. Second slide groove; 14. First limiting groove; 15. First limiting block; 16. Through rod; 17. Second limiting block; 18. Second limiting groove; 19. Shock absorber block; 20. Fitting groove; 21. Isolation pad. Detailed Implementation

[0027] 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.

[0028] Example 1:

[0029] Please see Figures 1-5 An ergonomic sofa lumbar support device includes a main body 1, an adjustment mechanism, and a contact mechanism. The adjustment mechanism includes a motor 2 and a lead screw 3. The motor 2 is fixedly installed inside the main body 1. One end of the lead screw 3 is fixedly installed on the motor 2 and rotatably connected to the main body 1. A lifting frame 4 is installed on the lead screw 3. A first roller 5 is installed on the lifting frame 4. The lifting frame 4 slides inside the main body 1. The first roller 5 is installed in the lifting frame 4 and is rotatably connected to the lifting frame 4 and slidably connected to the main body 1. The contact mechanism includes a contact element 6 and a spring 7. One end of the spring 7 is fixedly connected to the lifting frame 4. The contact element 6 is installed in the lifting frame 4 and slidably connected to the lifting frame 4. A second roller 8 is installed on the contact element 6.

[0030] In this embodiment, the adjustment mechanism includes a motor 2 and a lead screw 3. In use, the motor 2 drives the lead screw 3 to rotate, so that the lifting frame 4 can slide in the first slide groove 12 of the main body 1 under the action of the threaded hole 11 and the threaded engagement of the lead screw 3. The first roller 5 slides in the second slide groove 13, and the first limiting block 15 on the lifting frame 4 slides in the first limiting groove 14 of the main body 1, thus completing the stable sliding of the lifting frame 4 and facilitating the position adjustment of the lifting frame 4.

[0031] In this embodiment, the contact mechanism includes a contact element 6 and a spring 7. During use, when the human body leans against the contact element 6, it applies pressure to the contact element 6. At this time, the contact element 6 slides in the second limiting block 17 and the second limiting groove 18, and squeezes the spring 7. It is also slidably connected to the through rod 16. Moreover, the shock-absorbing block 19 on the contact element 6 is also connected to the lifting frame 4 to reduce the reaction force when the human body leans against it. When the contact element 6 slides on the main body 1, the second roller 8 slides in the sofa to facilitate the sliding of the contact element 6. The main body 1 is directly covered with a sofa cover, and the seat cushion 9 on the sofa can be replaced. When replacing the back cushion 10, the back cushion 10 can be taken out in the fitting groove 20.

[0032] Example 2:

[0033] In summary, during use, firstly, the motor 2 directly drives the lead screw 3 to rotate, causing the lifting frame 4 to slide in the first slide groove 12 of the main body 1 under the action of the threaded engagement between the threaded hole 11 and the lead screw 3. The first roller 5 slides in the second slide groove 13, while the first limiting block 15 on the lifting frame 4 slides in the first limiting groove 14 of the main body 1, completing the stable sliding of the lifting frame 4 and facilitating position adjustment. When a person approaches the contact piece 6, the person applies pressure to the contact piece 6, and the contact piece 6 then moves to the second limiting groove 14. Block 17 slides in the second limiting groove 18 and compresses the spring 7, while also slidingly connecting with the through rod 16. The shock-absorbing block 19 on the contact member 6 is also connected to the lifting frame 4 to reduce the reaction force when the human body leans against it. When the contact member 6 slides on the main body 1, the second roller 8 slides in the sofa to facilitate the sliding of the contact member 6. The main body 1 is directly covered with a sofa cover, and the seat cushion 9 on the sofa can be replaced. When replacing the back cushion 10, the back cushion 10 can be taken out in the fitting groove 20.

[0034] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An ergonomic sofa lumbar support device, comprising a main body (1), an adjustment mechanism, and a contact mechanism, characterized in that, The adjustment mechanism includes a motor (2) and a lead screw (3). The motor (2) is fixedly installed inside the main body (1). One end of the lead screw (3) is fixedly installed on the motor (2) and rotatably connected to the main body (1). A lifting frame (4) is installed on the lead screw (3). A first roller (5) is installed on the lifting frame (4). The lifting frame (4) slides inside the main body (1). The first roller (5) is installed in the lifting frame (4) and rotatably connected to the lifting frame (4) and slidably connected to the main body (1) respectively. The contact mechanism includes a contact element (6) and a spring (7). One end of the spring (7) is fixedly connected to the lifting frame (4). The contact element (6) is installed in the lifting frame (4) and slidably connected to the lifting frame (4). A second roller (8) is installed on the contact element (6).

2. The ergonomic sofa lumbar support device according to claim 1, characterized in that: The main body (1) is equipped with a seat cushion (9) and a backrest cushion (10), which are respectively connected to the main body (1).

3. The ergonomic sofa lumbar support device according to claim 2, characterized in that: The lifting frame (4) is equipped with a threaded hole (11), the lead screw (3) is connected to the threaded hole (11), the main body (1) is provided with a first sliding groove (12), and the lifting frame (4) is slidably connected to the first sliding groove (12).

4. The ergonomic sofa lumbar support device according to claim 3, characterized in that: The first slide groove (12) is provided with a second slide groove (13), the first roller (5) slides in the second slide groove (13), the main body (1) is provided with a first limiting groove (14), and the lifting frame (4) slides in the first limiting groove (14).

5. The ergonomic sofa lumbar support device according to claim 4, characterized in that: The lifting frame (4) is provided with a first limiting block (15) and a through rod (16). The first limiting block (15) is slidably connected to the first limiting groove (14), and the through rod (16) is slidably connected to the contact member (6).

6. The ergonomic sofa lumbar support device according to claim 1, characterized in that: The contact member (6) is provided with a second limiting block (17), and the lifting frame (4) is provided with a second limiting groove (18). The second limiting block (17) and the second limiting groove (18) are slidably connected.

7. The ergonomic sofa lumbar support device according to claim 2, characterized in that: A shock-absorbing block (19) is fixedly installed on the contact member (6), and a fitting groove (20) is provided on the main body (1). The cushion (10) is connected to the fitting groove (20).

8. The ergonomic sofa lumbar support device according to claim 2, characterized in that: An isolation pad (21) is provided at the bottom of the main body (1).

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