Sofa support and sofa with same

Abstract

The utility model discloses a sofa support and a sofa with the same. The sofa support comprises a backrest support, a headrest support, a waist support, a first driving mechanism and a second driving mechanism, wherein the first driving mechanism and the second driving mechanism are connected to the backrest support; the headrest support is hinged to the upper portion of the backrest support, and the first driving mechanism is connected with the headrest support and drives the headrest support to rotate relative to the backrest support; the waist support is hinged to the lower portion of the backrest support, and the second driving mechanism is connected with the waist support and drives the waist support to rotate relative to the backrest support; the waist support further comprises a waist backup plate, a connecting plate is fixed to the waist backup plate, and the connecting plate is hinged to the lower end of the waist support. The waist support is provided with a first limiting column matched with the connecting plate, and the front end of the connecting plate is provided with a second limiting column matched with the waist support so as to limit the rotation angle of the waist backup plate relative to the waist support.

Description

Technical Field

[0001] This utility model relates to the field of electric furniture equipment, and more specifically, to a sofa frame. Background Technology

[0002] The headrest and lumbar support mechanism is the core mechanical component of a multi-functional electric sofa. The headrest and lumbar support components of the mechanism are driven by a motor to move, thereby adjusting the height and / or angle of the headrest and lumbar support to meet the user's comfort requirements for the multi-functional electric sofa.

[0003] Chinese patent document CN207506260U discloses a sofa backrest support, in which a mounting component is fixed to the back of the lumbar support panel. The lumbar support panel has an arc-shaped limiting hole, and a limiting post on the mounting component slides within the arc-shaped limiting hole to limit the sway angle of the lumbar support panel relative to the lumbar support. This allows the lumbar support to adaptively adjust its angle within a certain range, increasing comfort. However, the arc-shaped limiting hole on the lumbar support panel affects its strength, and the limiting post makes significant noise when sliding within the arc-shaped limiting hole. Prolonged use can also cause wear and tear on the limiting post and / or the arc-shaped limiting hole, affecting the lifespan of the sofa backrest support.

[0004] To address the aforementioned issues, it is necessary to provide a sofa support system that can resolve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a sofa support that overcomes the above-mentioned defects in the prior art.

[0006] The technical solution to achieve the purpose of this utility model is: a sofa support, including a backrest support, a headrest support, a lumbar support, and a first drive mechanism and a second drive mechanism connected to the backrest support; the headrest support is hinged to the upper part of the backrest support, the first drive mechanism is connected to the headrest support and drives the headrest support to rotate relative to the backrest support; the lumbar support is hinged to the lower part of the backrest support, the second drive mechanism is connected to the lumbar support and drives the lumbar support to rotate relative to the backrest support;

[0007] It also includes a lumbar support plate, which is fixed with a connecting plate and hinged to the lower end of the lumbar support; the lumbar support is provided with a first limiting post that cooperates with the connecting plate, and the front end of the connecting plate is provided with a second limiting post that cooperates with the lumbar support, so as to limit the rotation angle of the lumbar support plate relative to the lumbar support.

[0008] Furthermore, the first limiting post is a first rivet fixed to the waist bracket.

[0009] Furthermore, the second limiting post is a second rivet fixed to the connecting plate.

[0010] Furthermore, the connecting plate is provided with multiple second limiting post mounting through holes.

[0011] Furthermore, the first drive mechanism is a first push rod motor, which is hinged to the backrest bracket and the headrest bracket respectively.

[0012] Furthermore, the second drive mechanism is a second push rod motor, which is hinged to the backrest bracket and the lumbar bracket respectively.

[0013] Furthermore, the first drive mechanism also includes a first tension spring, which is connected to the backrest bracket and the headrest bracket respectively.

[0014] Furthermore, the headrest bracket is symmetrically provided with two headrest mounting parts, and the headrest mounting parts are provided with headrest mounting holes.

[0015] It also mentions a type of sofa that includes the aforementioned sofa frame.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] (1) This utility model allows the headrest and lumbar support to be adjusted independently, providing users with a more personalized comfort experience. Users can adjust the angle of the headrest and lumbar support separately according to their physical condition and preferences; and the lumbar backrest can be rotated at a certain angle relative to the lumbar support. During use, when the human back is against the lumbar backrest, the lumbar backrest can adaptively adjust the angle within a certain angle range, thereby ensuring that the human back always has a comfortable support surface, thus increasing the comfort of using the sofa.

[0018] (2) This utility model uses rivets as limiting posts to restrict the rotation range of the waist support plate, ensuring the relative position between the waist support plate and the waist bracket is stable, preventing excessive rotation, and maintaining the integrity of the structure; the solution is robust and durable, and reduces costs.

[0019] (3) The design of multiple second limiting column mounting through holes in this utility model provides the product with a variety of adjustment options, allowing users to customize the most suitable waist support angle, which increases the product's adaptability and user experience.

[0020] (4) The first and second drive mechanisms of this utility model use push rod motors to achieve precise and smooth position control. At the same time, they are easy to integrate into existing systems and can be programmed to achieve automated or remote control operation, improving user convenience and comfort.

[0021] (5) The spring of this utility model can provide pre-tension when the push rod is shortened, and can also achieve anti-pinch, providing additional safety.

[0022] (6) The symmetrically distributed mounting holes of this utility model make it easy to install and remove the headrest, and also support different types of headrest accessories, which improves the compatibility and customization of the product. Attached Figure Description

[0023] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0024] Figure 1 This is a front view of the present invention.

[0025] Figure 2 This is a perspective view of the present invention.

[0026] Figure 3 This is a 3D diagram of a lumbar support system.

[0027] The labels in the attached drawings are as follows: 1. Backrest bracket; 2. Headrest bracket; 21. Headrest mounting component; 22. Headrest mounting hole; 3. Lumbar support bracket; 4. First drive mechanism; 41. First push rod motor; 42. First tension spring; 5. Second drive mechanism; 51. Second push rod motor; 6. Lumbar support plate; 7. Connecting plate; 71. First limiting post; 72. Second limiting post; 73. Second limiting post mounting through hole. Detailed Implementation

[0028] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between 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. The utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this utility model and should not be used to limit the scope of protection of this utility model.

[0034] Example 1, see Figure 1 , Figure 2 and Figure 3 A sofa support includes a backrest support 1, a headrest support 2, a lumbar support 3, and a first drive mechanism 4 and a second drive mechanism 5 connected to the backrest support 1. The headrest support 2 is hinged to the upper part of the backrest support 1, and the first drive mechanism 4 is connected to the headrest support 2 and drives the headrest support 2 to rotate relative to the backrest support 1. The lumbar support 3 is hinged to the lower part of the backrest support 1, and the second drive mechanism 5 is connected to the lumbar support 3 and drives the lumbar support 3 to rotate relative to the backrest support 1. The headrest support 2 and lumbar support 3 are detachable from the backrest support 1, allowing them to be used separately as a headrest support or a backrest support, or as an integrated headrest and backrest support. When used as an integrated headrest and backrest support, the headrest and lumbar support can be adjusted independently, providing users with a more personalized comfort experience. Users can adjust the angles of the headrest and lumbar support individually according to their physical condition and preferences.

[0035] The sofa frame also includes a lumbar support 6, to which a connecting plate 7 is fixed. The connecting plate 7 is hinged to the lower end of the lumbar support 3. The lumbar support 3 has a first limiting post 71 that cooperates with the connecting plate 7, and the front end of the connecting plate 7 has a second limiting post 72 that cooperates with the lumbar support 3, to limit the rotation angle of the lumbar support 6 relative to the lumbar support 3. The lumbar support can swing at a certain angle relative to the lumbar support. During use, when the human back rests on the lumbar support, the lumbar backrest can adaptively adjust its angle within a certain range, thereby ensuring that the human back always has a large support surface, thus increasing the comfort of using the sofa.

[0036] Preferably, the first limiting post 71 is a first rivet fixed to the lumbar support 3, and the second limiting post 72 is a second rivet fixed to the connecting plate 7. Using rivets as limiting posts restricts the rotation range of the lumbar support plate, ensuring a stable relative position between the lumbar support plate and the lumbar support, preventing excessive rotation, and maintaining structural integrity. This solution is robust and durable, while simplifying the installation and manufacturing process and reducing costs. Furthermore, it does not generate noise during the swinging of the lumbar support plate, improving user comfort.

[0037] Preferably, the connecting plate 7 is provided with multiple second limiting post mounting through holes 73. This design provides the product with a variety of adjustment and upgrade options, allowing users to customize the lumbar support angle that best suits them, increasing the product's adaptability and user experience.

[0038] Preferably, the first drive mechanism 4 is a first push rod motor 41, which is hinged to the backrest support 1 and the headrest support 2 respectively; the second drive mechanism 5 is a second push rod motor 51, which is hinged to the backrest support 1 and the lumbar support 3 respectively. During adjustment, the headrest support 2 is driven to rotate forward or backward by extending or shortening the first push rod motor 41. Similarly, the lumbar support 3 is adjusted by the second push rod motor 51.

[0039] Preferably, the first drive mechanism 4 further includes a first tension spring 42, which is connected to both the backrest support 1 and the headrest support 2. The first tension spring 42 provides pre-tension when the first push rod motor 41 shortens and also prevents pinching between the headrest support 2 and the backrest support 1. Similarly, the second drive mechanism 5 may also include a second tension spring. Preferably, the headrest support 2 is symmetrically provided with two headrest mounting parts 21, each with a headrest mounting hole 22. The symmetrically distributed mounting holes allow for easy installation and removal of the headrest, and also support different types of headrest accessories, improving product compatibility and customization. The structure of the backrest support 1 can be customized according to the structure of the sofa, achieving a better streamlined shape and improving user comfort.

[0040] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sofa frame, comprising a backrest frame (1), a headrest frame (2), a lumbar support frame (3), and a first drive mechanism (4) and a second drive mechanism (5) connected to the backrest frame (1); the headrest frame (2) is hinged to the upper part of the backrest frame (1), the first drive mechanism (4) is connected to the headrest frame (2) and drives the headrest frame (2) to rotate relative to the backrest frame (1); the lumbar support frame (3) is hinged to the lower part of the backrest frame (1), the second drive mechanism (5) is connected to the lumbar support frame (3) and drives the lumbar support frame (3) to rotate relative to the backrest frame (1); Its features are: It also includes a waist support plate (6), the waist support plate (6) is fixed with a connecting plate (7), the connecting plate (7) is hinged to the lower end of the waist support (3); the waist support (3) is provided with a first limiting post (71) that cooperates with the connecting plate (7), and the front end of the connecting plate (7) is provided with a second limiting post (72) that cooperates with the waist support (3) to limit the rotation angle of the waist support plate (6) relative to the waist support (3).

2. A sofa frame according to claim 1, characterized in that: The first limiting post (71) is the first rivet fixed to the waist bracket (3).

3. A sofa frame according to claim 2, characterized in that: The second limiting post (72) is a second rivet fixed to the connecting plate (7).

4. A sofa frame according to claim 3, characterized in that: The connecting plate (7) is provided with multiple second limiting post mounting through holes (73).

5. A sofa frame according to claim 1, characterized in that: The first drive mechanism (4) is a first push rod motor (41), which is hinged to the backrest bracket (1) and the headrest bracket (2) respectively.

6. A sofa frame according to claim 5, characterized in that: The second drive mechanism (5) is a second push rod motor (51), which is hinged to the backrest bracket (1) and the waist bracket (3) respectively.

7. A sofa frame according to claim 5, characterized in that: The first drive mechanism (4) further includes a first tension spring (42), which is connected to the backrest bracket (1) and the headrest bracket (2) respectively.

8. A sofa frame according to claim 1, characterized in that: The headrest bracket (2) is symmetrically provided with two headrest mounting parts (21), and the headrest mounting parts (21) are provided with headrest mounting holes (22).

9. A sofa, comprising a sofa frame, characterized in that, The sofa frame is the sofa frame as described in any one of claims 1 to 8.

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