Angle-adjustable cushion framework and seat

Abstract

The utility model discloses an angle-adjustable seat cushion framework which comprises an upper seat cushion framework and a lower seat cushion framework. The cushion lower framework comprises two lower frameworks which are respectively positioned on two sides; a first fixing shaft and a second fixing shaft are respectively arranged between the first ends and the second ends of the two lower frameworks and are fixedly connected with the first ends and the second ends of the two lower frameworks; the cushion upper framework comprises two upper frameworks located on the two sides respectively, and a third fixing shaft is arranged between the first ends of the two upper frameworks for fixed connection. The upper framework and the lower framework are correspondingly arranged; rotating support plates are arranged at the second ends of the lower frameworks, and the second ends of the two upper frameworks are rotationally matched with the corresponding rotating support plates through rotating shafts; an angle adjusting assembly is arranged between the first ends of the lower cushion framework and the upper cushion framework. According to the angle-adjustable cushion framework and the seat, the angle of the cushion can be adjusted, and the angle-adjustable cushion framework and the seat have the advantages of being high in structural stability and low in production cost.

Description

Technical Field

[0001] The utility model relates to a seat, specifically to a seat cushion skeleton and a seat with adjustable angle. Background Art

[0002] The Chinese utility model patent with the publication number of CN220876342U discloses a seat and a seat cushion skeleton with adjustable angle, which comprises an upper seat cushion skeleton and a lower seat cushion skeleton. One end of the upper seat cushion skeleton and the lower seat cushion skeleton is rotatably matched through a rotating shaft, and an angle adjusting mechanism is arranged between the other ends of the upper seat cushion skeleton and the lower seat cushion skeleton; the angle adjusting mechanism comprises an angle adjuster and a power device; a first output gear disc and a second output gear disc are respectively arranged on two sides of the angle adjuster, a connecting rod mechanism is arranged between the first output gear disc and the upper seat cushion skeleton, and the second output gear disc rotates synchronously with the lower seat cushion skeleton; the power device is in transmission connection with the angle adjuster and fixedly installed on the lower seat cushion skeleton. Wherein, both ends of the rotating shaft are rotatably matched with the two upper skeletons respectively, and the two lower skeletons are fixedly connected with the rotating shaft.

[0003] Although the seat cushion skeleton with adjustable angle can meet the technical purpose of adjusting the angle between the upper seat cushion skeleton and the lower seat cushion skeleton, the applicant finds in the production and use process that due to the rotational fit between the rotating shaft and the upper skeleton and the fixed connection with the lower skeleton, the matching structure between the rotating shaft and the upper and lower skeletons is complex, which not only increases the production cost, but also leads to insufficient stability of the rotating structure, and is prone to abnormal noise and other problems during use, resulting in more after-sales problems. Summary of the Invention

[0004] In view of this, the purpose of the utility model is to provide a seat cushion skeleton and a seat with adjustable angle, which can not only adjust the seat cushion angle, but also have the advantages of high structural stability and low production cost.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model first proposes a seat cushion skeleton with adjustable angle, which comprises an upper seat cushion skeleton and a lower seat cushion skeleton;

[0007] The lower seat cushion skeleton comprises two lower skeletons respectively located on both sides, and a first fixed shaft and a second fixed shaft are respectively arranged between the first end and the second end of the two lower skeletons for fixed connection; the upper seat cushion skeleton comprises two upper skeletons respectively located on both sides, and a third fixed shaft is arranged between the first ends of the two upper skeletons for fixed connection;

[0008] The upper frame and the lower frame are arranged correspondingly; a rotating support plate is provided at the second end of the lower frame, and the second ends of the two upper frames are rotatably matched with the corresponding rotating support plates through a rotating shaft;

[0009] An angle adjustment component is arranged between the first ends of the seat cushion lower frame and the seat cushion upper frame.

[0010] Furthermore, the second ends of the two upper frames are rotationally matched with the corresponding rotating support plates through two rotating shafts, and the two rotating shafts are coaxial.

[0011] Furthermore, the rotating shaft adopts a stepped screw arranged between the second end of the upper frame and the corresponding rotating support plate.

[0012] Furthermore, the rotating shaft is located between the first fixed shaft and the second fixed shaft.

[0013] Furthermore, the rotating support plate is respectively welded and fixed to the lower frame and the second fixed shaft.

[0014] Furthermore, the angle adjustment assembly includes an angle adjustment mechanism and a power device, the angle adjustment mechanism is provided in two, and the two angle adjustment mechanisms are respectively arranged between the two upper frames and the corresponding lower frames; the angle adjustment mechanism includes an angle adjuster, and a first output gear plate and a second output gear plate are respectively provided on both sides of the angle adjuster, a connecting rod mechanism is provided between the first output gear plate and the corresponding upper frame, and the second output gear plate rotates synchronously with the corresponding lower frame; a synchronization shaft is provided between the two angle adjusters, and the power device is transmission-connected to the synchronization shaft.

[0015] Furthermore, the connecting rod mechanism includes a first connecting rod that rotates synchronously with the first output gear plate, the first connecting rod is provided with a second connecting rod hingedly connected to the first connecting rod, and the second connecting rod is hingedly connected to the corresponding upper frame.

[0016] Furthermore, hinge plates are respectively provided at both ends of the third fixed shaft, the hinge plates are welded and fixed to the third fixed shaft, and the hinge plates are hingedly connected to the corresponding second connecting rods.

[0017] Furthermore, the power device includes an angle adjustment motor and a transmission box, the transmission box is fixedly connected to one of the lower frames, and the angle adjustment motor is fixedly mounted on the transmission box; the input shaft of the transmission box is transmission-connected to the angle adjustment motor, and the output shaft of the transmission box is transmission-connected to the synchronous shaft.

[0018] The utility model also provides a seat, comprising the above-mentioned angle-adjustable seat cushion frame.

[0019] The beneficial effects of the present utility model are as follows:

[0020] For the angle-adjustable seat cushion frame of the present utility model, by respectively arranging a first fixed shaft and a second fixed shaft between the first end and the second end of the lower frames on both sides, in this way, the structural strength of the seat cushion lower frame can be ensured; by arranging a third fixed shaft between the first ends of the upper frames on both sides, in this way, during the assembly process, the distance between the second ends of the upper frames on both sides can be adjusted to make the second end of the upper frame fit the corresponding rotating support plate; by arranging a rotating shaft between the second end of the upper frame and the corresponding rotating support plate, in this way, through the angle adjustment assembly, the seat cushion upper frame can be driven to rotate relative to the seat cushion lower frame around the rotating shaft, thereby realizing the adjustment of the seat cushion angle; since the second end of the upper frame and the rotating support plate are matched through an independent rotating shaft, there is no need to set up complex matching structures between the rotating shaft and the upper frame and the rotating support plate, which can effectively simplify the structure, save costs, and improve the structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the objectives, technical solutions and beneficial effects of the present utility model clearer, the following drawings are provided for the description of the present utility model:

[0022] Figure 1 It is a schematic structural diagram of an embodiment of the angle-adjustable seat cushion frame of the present utility model, specifically, an isometric view of the angle-adjustable seat cushion frame in the first direction;

[0023] Figure 2 It is an isometric view of the angle-adjustable seat cushion frame of this embodiment in the second direction.

[0024] Description of the reference numerals:

[0025] 10 - Seat cushion upper frame; 11 - Upper frame; 12 - Third fixed shaft; 13 - Hinge plate;

[0026] 20 - Seat cushion lower frame; 21 - Lower frame; 22 - First fixed shaft; 23 - Second fixed shaft; 24 - Rotating support plate;

[0027] 30 - Rotating shaft;

[0028] 41 - Angle adjuster; 42 - Synchronous shaft; 43 - First connecting rod; 44 - Second connecting rod; 45 - Angle adjustment motor; 46 - Transmission box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following further describes the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0030] As Figure 1As shown, the angle-adjustable seat cushion frame of the present embodiment includes an upper seat cushion frame 10 and a lower seat cushion frame 20. The lower seat cushion frame 20 of the present embodiment includes two lower frames 21 located on both sides, respectively, and a first fixed axis 22 and a second fixed axis 23 are respectively provided between the first end and the second end of the two lower frames 21 to be fixedly connected. The upper seat cushion frame 10 of the present embodiment includes two upper frames 11 located on both sides, respectively, and a third fixed axis 12 is provided between the first ends of the two upper frames 11 to be fixedly connected. Specifically, the upper frames 11 and the lower frames 21 are correspondingly arranged, and in the present embodiment, a rotating support plate 24 is provided at the second end of the lower frame 21, and the second ends of the two upper frames 11 are rotationally matched with the corresponding rotating support plates 24 through a rotating axis 30. In the present embodiment, the second ends of the two upper frames 11 are rotationally matched with the corresponding rotating support plates 24 through two rotating axes 30, and the two rotating axes 30 are coaxial.

[0031] In this embodiment, the rotating shaft 30 adopts a step screw set between the second end of the upper frame 11 and the corresponding rotating support plate 24, that is, the second end of the upper frame 11 and the corresponding rotating support plate 24 are axially positioned by the step screw.

[0032] In this embodiment, the rotating shaft 30 is located between the first fixed shaft 22 and the second fixed shaft 23 , and the rotating support plate 24 is welded and fixed to the lower frame 21 and the second fixed shaft 23 , respectively.

[0033] An angle adjustment component is provided between the first end of the lower frame 20 of the seat cushion and the upper frame 10 of the seat cushion in this embodiment. The angle adjustment component of this embodiment includes an angle adjustment mechanism and a power device. The angle adjustment mechanism is provided in two, and the two angle adjustment mechanisms are respectively provided between the two upper frames 11 and the corresponding lower frames 21. Specifically, the angle adjustment mechanism includes a recliner 41, and a first output gear disc and a second output gear disc are respectively provided on both sides of the recliner 41. A connecting rod mechanism is provided between the first output gear disc and the corresponding upper frame 11, and the second output gear disc rotates synchronously with the corresponding lower frame 21. A synchronous shaft 42 is provided between the two recliners, and the power device is connected to the synchronous shaft 42 in transmission.

[0034] The connecting rod mechanism of this embodiment includes a first connecting rod 43 that rotates synchronously with the first output gear plate, and a second connecting rod 44 is hingedly connected to the first connecting rod 43, and the second connecting rod 44 is hingedly connected to the corresponding upper frame 11. Specifically, in this embodiment, hinge plates 13 are respectively provided at both ends of the third fixed shaft 12, and the hinge plates 13 are welded and fixed to the third fixed shaft 12, and the hinge plates 13 are hingedly connected to the corresponding second connecting rod 44.

[0035] The power device of this embodiment includes an angle-adjusting motor 45 and a transmission case 46. The transmission case 15 is fixedly connected to one of the lower frameworks 11, and the angle-adjusting motor 45 is fixedly installed on the transmission case 46. In this way, when adjusting the seat cushion angle, both the angle-adjusting motor 45 and the transmission case 46 are stationary relative to the seat cushion lower framework 20, and the structure is more stable. Specifically, the input shaft of the transmission case 15 is in transmission connection with the angle-adjusting motor 45, and the output shaft of the transmission case 46 is in transmission connection with the synchronizing shaft 42.

[0036] The angle-adjustable seat cushion framework of this embodiment is provided with a first fixed shaft 22 and a second fixed shaft 23 respectively between the first end and the second end of the two side lower frameworks 21. In this way, the seat cushion lower framework 20 can form an integral structure to ensure the structural strength of the seat cushion lower framework 20. By providing a third fixed shaft 12 between the first ends of the two side upper frameworks 11, during the assembly process, the distance between the second ends of the two side upper frameworks 11 can be adjusted to make the second end of the upper framework 11 fit with the corresponding rotating support plate 24, realizing the positioning of the second end of the upper framework 11. By providing a rotating shaft 30 between the second end of the upper framework 11 and the corresponding rotating support plate 24, through the angle adjustment assembly, the seat cushion upper framework 10 can be driven to rotate relative to the seat cushion lower framework 20 around the rotating shaft, thereby realizing the adjustment of the seat cushion angle. Since the second end of the upper framework 11 and the rotating support plate 24 are matched through an independent rotating shaft 30, there is no need to set up complex matching structures between the rotating shaft 30 and the upper framework 11 and the rotating support plate 24, which can effectively simplify the structure, save costs and improve the structural stability.

[0037] This embodiment also proposes a seat, including the angle-adjustable seat cushion framework as described above in this embodiment.

[0038] The above-described embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. An angle-adjustable seat cushion frame, characterized in that: It includes a seat cushion upper frame and a seat cushion lower frame; The seat cushion lower frame comprises two lower frames respectively located on both sides, and a first fixed shaft and a second fixed shaft are respectively provided between the first end and the second end of the two lower frames for fixed connection; the seat cushion upper frame comprises two upper frames respectively located on both sides, and a third fixed shaft is provided between the first ends of the two upper frames for fixed connection; The upper frame and the lower frame are arranged correspondingly; a rotating support plate is provided at the second end of the lower frame, and the second ends of the two upper frames are rotatably matched with the corresponding rotating support plates through a rotating shaft; An angle adjustment component is arranged between the first ends of the seat cushion lower frame and the seat cushion upper frame.

2. The angle-adjustable seat cushion frame according to claim 1, characterized in that: The second ends of the two upper frames are rotationally matched with the corresponding rotating support plates through the two rotating shafts, and the two rotating shafts are coaxial.

3. The angle-adjustable seat cushion frame according to claim 2, characterized in that: The rotating shaft adopts a stepped screw arranged between the second end of the upper frame and the corresponding rotating support plate.

4. The angle-adjustable seat cushion frame according to claim 1, characterized in that: The rotating shaft is located between the first fixed shaft and the second fixed shaft.

5. The angle-adjustable seat cushion frame according to claim 1, characterized in that: The rotating support plate is respectively welded and fixed to the lower frame and the second fixed shaft.

6. The angle-adjustable seat cushion frame according to any one of claims 1 to 5, characterized in that: The angle adjustment assembly includes an angle adjustment mechanism and a power device. There are two angle adjustment mechanisms, and the two angle adjustment mechanisms are respectively arranged between the two upper frames and the corresponding lower frames; the angle adjustment mechanism includes an angle adjuster, and a first output gear plate and a second output gear plate are respectively arranged on both sides of the angle adjuster. A connecting rod mechanism is arranged between the first output gear plate and the corresponding upper frame, and the second output gear plate rotates synchronously with the corresponding lower frame; a synchronous shaft is arranged between the two angle adjusters, and the power device is transmission-connected to the synchronous shaft.

7. The angle-adjustable seat cushion frame according to claim 6, characterized in that: The connecting rod mechanism comprises a first connecting rod which rotates synchronously with the first output gear plate, the first connecting rod is provided with a second connecting rod which is hingedly connected to the first connecting rod, and the second connecting rod is hingedly connected to the corresponding upper frame.

8. The angle-adjustable seat cushion frame according to claim 7, characterized in that: Both ends of the third fixed shaft are provided with hinge plates respectively. The hinge plates are welded and fixed to the third fixed shaft, and the hinge plates are hingedly connected to the corresponding second connecting rods.

9. The angle-adjustable seat cushion frame according to claim 6, characterized in that: The power device includes an angle adjustment motor and a transmission box, the transmission box is fixedly connected to one of the lower frames, and the angle adjustment motor is fixedly installed on the transmission box; the input shaft of the transmission box is transmission-connected to the angle adjustment motor, and the output shaft of the transmission box is transmission-connected to the synchronous shaft.

10. A seat, characterized in that: It comprises an angle-adjustable seat cushion frame as described in any one of claims 1-9.

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