Lifting type seat framework

Abstract

The utility model relates to the technical field of seat accessories, in particular to a lifting type seat framework. The front end of the seventh connecting rod is connected with an eighth connecting rod, the rear end of the seventh connecting rod is connected with a ninth connecting rod, and a tenth connecting rod is connected between the upper end of the ninth connecting rod and the middle section of the eighth connecting rod; an eleventh connecting rod is mounted at the lower end of the eighth connecting rod, and the upper end of the eleventh connecting rod is connected with a twelfth connecting rod and a connecting rod; a fourteenth connecting rod is installed at the rear end of the thirteenth connecting rod, the rear end of a first connecting rod in the pedal assembly is connected with the front end of the thirteenth connecting rod, and the lower end of a fifteenth connecting rod is connected with the rear end of a second connecting rod in the pedal assembly. The lower end of the fourteenth connecting rod is connected with the corner of the fifteenth connecting rod through a connecting plate. The flexibility and adaptability of the seat are improved, the requirements of a user for comfort, functionality and safety are met, blood circulation is promoted, the seat adapts to different workbench heights, the best posture is achieved, body pressure is reduced, and meanwhile the universality of the seat is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seat accessories, in particular to a lifting type seat frame. Background Art

[0002] The seat frame is the core part of the seat structure. It provides support and strength for the seat and ensures the stability and durability of the seat. The seat frame of the existing technology generally has the functions of sitting flat, lying flat, and crossing legs, corresponding to the sitting posture and leisure posture. However, the existing seat frame (such as Figure 1 The chair frame (as shown) does not have a lifting function, so the user experience is rather general. At the same time, it cannot adapt to different workbench heights and different users, affecting work efficiency and comfort. Moreover, working in a fixed posture causes users to maintain the same posture for a long time, increasing the risk of physical fatigue and musculoskeletal problems. Therefore, there is an urgent need for a chair iron frame with a lifting function to improve the adaptability and comfort of the chair. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the prior art in the above-mentioned background technology, a lifting function is provided to improve the flexibility and adaptability of the seat, meet the user's needs for comfort, functionality and safety, and thus enhance the overall user experience. A lifting seat frame.

[0004] The utility model solves the technical problem by adopting a technical solution: a lifting seat frame, including a chassis component,

[0005] A back assembly is installed above the chassis assembly, the back assembly is divided into a left part and a right part, each part includes a seventh connecting rod and a thirteenth connecting rod, the front end of the seventh connecting rod is connected to the eighth connecting rod, the rear end of the seventh connecting rod is connected to the ninth connecting rod, and the upper end of the ninth connecting rod and the middle section of the eighth connecting rod are connected to the tenth connecting rod;

[0006] The lower end of the eighth connecting rod is equipped with the eleventh connecting rod, and the upper end of the eleventh connecting rod is connected with the twelfth connecting rod and the connecting rod respectively;

[0007] A fourteenth connecting rod is installed at the rear end of the thirteenth connecting rod, a rear end of the first connecting rod in the pedal assembly is connected to a front end of the thirteenth connecting rod, a limiting hook is provided at the front end of the thirteenth connecting rod for limiting the deployment angle of the first connecting rod in the pedal assembly, a fifteenth connecting rod is also installed at the middle of the thirteenth connecting rod, and a lower end of the fifteenth connecting rod is connected to a rear end of the second connecting rod in the pedal assembly;

[0008] The lower end of the fourteenth connecting rod is connected to the corner of the fifteenth connecting rod through a connecting plate, and a bearing is installed at the corner of the fifteenth connecting rod.

[0009] Furthermore, a limiting opening is provided on the bottom surface of the seventh connecting rod, a third limiting member cooperating with the limiting opening is installed on the lower side of the ninth connecting rod, and an opening for installing the cross bar in the frame assembly is provided at the lower front end of the ninth connecting rod.

[0010] Furthermore, an embedding opening is provided at the upper end of each eighth connecting rod, a main beam is installed between the two embedding openings, and a thin beam is installed between the two fourteenth connecting rods.

[0011] Furthermore, it also includes a frame component, on which a back component is installed, a footrest component is installed at the front end of the back component, a backrest component is installed at the rear end of the back component, a drive component is installed in the back component, and a motor in the drive component is connected to the backrest component.

[0012] Further, the driving assembly includes a first driving motor and a second driving motor, the front end of the first driving motor is connected to the connecting rod, and the rear end of the first driving motor is connected to the cross bar;

[0013] The front end of the second drive motor is connected to the connecting rod, and the rear end of the second drive motor is connected to the backrest assembly.

[0014] Furthermore, the frame assembly includes a frame and a cross bar, the frame is connected to the back assembly, the cross bar is installed on the chassis assembly, a cross beam is installed at the front end of the cross bar, a cross plate is installed on the left and right inner walls of the frame, and clearance holes are provided at the front and rear ends of the cross plate, a fourth limiting piece is installed at the front end of the thirteenth connecting rod, and a limiting groove protruding upward and cooperating with the fourth limiting piece is provided at the front end of the cross plate.

[0015] Furthermore, the pedal assembly includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are cross-connected and connected by a pin, the front end of the first connecting rod is connected to the third connecting rod, the front end of the second connecting rod is connected to the fourth connecting rod, the third connecting rod and the fourth connecting rod are cross-connected and connected by a pin, the front end of the third connecting rod is connected to a small footrest, the front end of the fourth connecting rod is connected to the fifth connecting rod, the front end of the fifth connecting rod is connected to a large footrest, the rear end of the large footrest is connected to the front end of the small footrest, and the rear end of the small footrest is connected to the fifth connecting rod through a sixth connecting rod.

[0016] Furthermore, the chassis assembly includes a chassis, on which a column is installed, a rotating shaft is installed in the column, a cross bar of the frame assembly is installed on the rotating shaft, a plurality of suspension rods are installed on the cross bar of the frame assembly, the front end of the cross bar of the frame assembly is connected to a first limiting piece through a lifting ear, the rear end of the cross bar of the frame assembly is installed with a connecting piece for connecting a first driving motor, the lower end of the suspension rod is connected to one end of the first limiting piece, and the other end of the first limiting piece is located below the cross beam of the frame assembly, so as to limit the cross beam of the frame assembly.

[0017] Furthermore, a second limiting member is installed on the inner side of the first connecting rod.

[0018] Furthermore, an elastic member is sleeved on the suspension rod between the cross bar and the first limiting member in the frame assembly.

[0019] Beneficial effects of the utility model: The lifting function of the utility model can improve the flexibility and adaptability of the seat, meet the user's needs for comfort, functionality and safety, thereby enhancing the overall user experience, promoting blood circulation, adapting to different workbench heights to achieve the best posture, reducing body pressure, and preventing health problems that may be caused by long-term sitting, while also improving the versatility of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a structural schematic diagram of the prior art;

[0022] Figure 2 It is a structural schematic diagram of the utility model in a lifting posture;

[0023] Figure 3 It is a structural schematic diagram of the sitting posture of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the utility model in a leisure posture;

[0025] Figure 5 This utility model Figure 4 Exploded view after removing the backrest assembly;

[0026] Figure 6 This utility model Figure 5 Exploded view from the other direction;

[0027] Figure 7 It is a structural schematic diagram of the chassis assembly of the utility model;

[0028] Figure 8 This utility model Figure 7 A schematic diagram of the structure in another direction;

[0029] Fig. 9 It is a structural schematic diagram of the pedal assembly of the utility model;

[0030] Fig.10 This utility model Fig. 9 A schematic diagram of the structure in another direction;

[0031] In the figure: 1. chassis, 2. column, 3. rotating shaft, 4. cross bar, 5. suspension rod, 6. first limiter, 7. cross beam, 8. connecting member, 9. elastic member,

[0032] 10. Large footrest, 11. Small footrest, 12. First connecting rod, 13. Second connecting rod, 14. Third connecting rod, 15. Fourth connecting rod, 16. Fifth connecting rod, 17. Sixth connecting rod, 18. Second stopper,

[0033] 19. The seventh connecting rod, 20. The eighth connecting rod, 21. The ninth connecting rod, 22. The tenth connecting rod, 23. The eleventh connecting rod, 24. The twelfth connecting rod, 25. The connecting rod, 26. The limiting opening, 27. The third limiting member, 28. The opening, 29. The thirteenth connecting rod, 30. The fourteenth connecting rod, 31. The limiting hook, 32. The fifteenth connecting rod, 33. The connecting plate, 34. The bearing,

[0034] 35. frame, 36. horizontal plate, 37. clearance hole, 38. fourth limiting member, 39. limiting groove,

[0035] 40. Main beam, 41. Embedding opening, 42. Thin beam, 43. First drive motor, 44. Second drive motor,

[0036] 100. Chassis assembly, 200. Backrest assembly, 300. Footrest assembly, 400. Back assembly, 500. Drive assembly, 600. Frame assembly. DETAILED DESCRIPTION

[0037] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0038] like Figures 2 to 10 The lifting seat frame shown in the figure includes a chassis assembly 100,

[0039] like Figures 5-6 As shown, the back assembly 400 is installed above the chassis assembly 100, and the back assembly 400 is divided into a left part and a right part, each of which includes a seventh connecting rod 19 and a thirteenth connecting rod 29, the front end of the seventh connecting rod 19 is connected to the eighth connecting rod 20, the rear end of the seventh connecting rod 19 is connected to the ninth connecting rod 21, and the tenth connecting rod 22 is connected between the upper end of the ninth connecting rod 21 and the middle section of the eighth connecting rod 20;

[0040] The lower end of the eighth connecting rod 20 is installed with the eleventh connecting rod 23, and the upper end of the eleventh connecting rod 23 is connected with the twelfth connecting rod 24 and the connecting rod 25 respectively;

[0041] A fourteenth connecting rod 30 is installed at the rear end of the thirteenth connecting rod 29, a rear end of the first connecting rod 12 in the pedal assembly 300 is connected to a front end of the thirteenth connecting rod 29, a front end of the thirteenth connecting rod 29 has a limit hook 31 for limiting the deployment angle of the first connecting rod 12 in the pedal assembly 300, a fifteenth connecting rod 32 is also installed in the middle of the thirteenth connecting rod 29, and a lower end of the fifteenth connecting rod 32 is connected to the rear end of the second connecting rod 13 in the pedal assembly 300;

[0042] The lower end of the fourteenth connecting rod 30 is connected to the corner of the fifteenth connecting rod 32 through a connecting plate 33 , and a bearing 34 is installed at the corner of the fifteenth connecting rod 32 .

[0043] like Figure 5 As shown, a limiting opening 26 is provided on the bottom surface of the seventh connecting rod 19, a third limiting member 27 cooperating with the limiting opening 26 is installed on the lower end side of the ninth connecting rod 21, and an opening 28 for installing the cross bar 4 in the frame assembly 600 is provided at the lower front end of the ninth connecting rod 21.

[0044] An embedding opening 41 is provided at the upper end of each eighth connecting rod 20 , a main beam 40 is installed between the two embedding openings 41 , and a thin beam 42 is installed between the two fourteenth connecting rods 30 .

[0045] like Figure 5 As shown, it also includes a frame assembly 600, on which a back assembly 400 is installed, a footrest assembly 300 is installed at the front end of the back assembly 400, a backrest assembly 200 is installed at the rear end of the back assembly 400, a drive assembly 500 is installed in the back assembly 400, and a motor in the drive assembly 500 is connected to the backrest assembly 200.

[0046] like Figures 5-6 As shown, the driving assembly 500 includes a first driving motor 43 and a second driving motor 44, wherein the front end of the first driving motor 43 is connected to the connecting rod 25, and the rear end of the first driving motor 43 is connected to the crossbar 4;

[0047] The front end of the second driving motor 44 is connected to the connecting rod 25 , and the rear end of the second driving motor 44 is connected to the backrest assembly 200 .

[0048] The frame assembly 600 includes a frame 35 and a cross bar 4, the frame 35 is connected to the back assembly 400, the cross bar 4 is installed on the chassis assembly 100, the front end of the cross bar 4 is installed with a cross beam 7, the left and right inner walls of the frame 35 are installed with a cross plate 36, the front and rear ends of the cross plate 36 are provided with a clearance hole 37, the front end of the thirteenth connecting rod 29 is installed with a fourth limit piece 38, and the front end of the cross plate 36 is provided with an upwardly protruding limit groove 39 that cooperates with the fourth limit piece 38.

[0049] like Figures 9-10As shown, the pedal assembly 300 includes a first connecting rod 12 and a second connecting rod 13, the first connecting rod 12 and the second connecting rod 13 are cross-connected, and the two are connected by a pin shaft, the front end of the first connecting rod 12 is connected to the third connecting rod 14, the front end of the second connecting rod 13 is connected to the fourth connecting rod 15, the third connecting rod 14 and the fourth connecting rod 15 are cross-connected, and the two are connected by a pin shaft, the front end of the third connecting rod 14 is connected to the small footrest 11, the front end of the fourth connecting rod 15 is connected to the fifth connecting rod 16, the front end of the fifth connecting rod 16 is connected to the large footrest 10, the rear end of the large footrest 10 is connected to the front end of the small footrest 11, the rear end of the small footrest 11 is connected to the fifth connecting rod 16 through the sixth connecting rod 17, and a second limiting member 18 is installed on the inner side of the first connecting rod 12.

[0050] like Figures 7-8 As shown, the chassis assembly 100 includes a chassis 1, on which a column 2 is installed, in which a rotating shaft 3 is installed, on which a cross bar 4 of a frame assembly 600 is installed, on which a plurality of suspension rods 5 are installed, the front end of the cross bar 4 of the frame assembly 600 is connected to a first limiting member 6 through a lifting ear, and the rear end of the cross bar 4 of the frame assembly 600 is installed with a connecting member 8 for connecting a first driving motor (43), the lower end of the suspension rod 5 is connected to one end of the first limiting member 6, and the other end of the first limiting member 6 is located below the cross beam 7 of the frame assembly 600, so as to limit the cross beam 7 of the frame assembly 600, and an elastic member 9 is sleeved on the suspension rod 5 between the cross bar 4 of the frame assembly 600 and the first limiting member 6.

[0051] There are three postures:

[0052] First, as Figure 2 As shown, the state is a sitting position, and the first drive motor 43 and the second drive motor 44 are both in the initial state;

[0053] Second, if Figure 1 As shown, this state is a lifting posture, the first drive motor 43 is extended, pushing the connecting rod 25 to move upward, thereby driving the seventh connecting rod 19, the eighth connecting rod 20, the ninth connecting rod 21, the tenth connecting rod 22 and the fifteenth connecting rod 32 to stretch, so that the seat frame is in a lifting posture;

[0054] Third, if Figure 3 As shown, this state is a leisure posture, the first drive motor 43 retracts, driving the connecting rod 25 to move backward, thereby driving the eleventh connecting rod 23 to rotate counterclockwise, thereby driving the pedal assembly (300) to be in an unfolded state;

[0055] At the same time, the second drive motor 44 retracts, and the rear end of the second drive motor 44 drives the backrest assembly 200 to rotate counterclockwise, so that the backrest assembly 200 tilts downward.

[0056] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A lifting seat frame, characterized in that: comprising a chassis assembly (100), A back assembly (400) is installed above the chassis assembly (100), the back assembly (400) is divided into a left part and a right part, each part includes a seventh connecting rod (19) and a thirteenth connecting rod (29), the front end of the seventh connecting rod (19) is connected to the eighth connecting rod (20), the rear end of the seventh connecting rod (19) is connected to the ninth connecting rod (21), and the tenth connecting rod (22) is connected between the upper end of the ninth connecting rod (21) and the middle section of the eighth connecting rod (20); The lower end of the eighth connecting rod (20) is installed with the eleventh connecting rod (23), and the upper end of the eleventh connecting rod (23) is respectively connected with the twelfth connecting rod (24) and the connecting rod (25); A fourteenth connecting rod (30) is installed at the rear end of the thirteenth connecting rod (29), a rear end of the first connecting rod (12) in the pedal assembly (300) is connected to a front end of the thirteenth connecting rod (29), a limiting hook (31) is provided at the front end of the thirteenth connecting rod (29) for limiting the unfolding angle of the first connecting rod (12) in the pedal assembly (300), a fifteenth connecting rod (32) is also installed at the middle of the thirteenth connecting rod (29), and a lower end of the fifteenth connecting rod (32) is connected to a rear end of the second connecting rod (13) in the pedal assembly (300); The lower end of the fourteenth connecting rod (30) is connected to the corner of the fifteenth connecting rod (32) through a connecting plate (33), and a bearing (34) is installed at the corner of the fifteenth connecting rod (32).

2. The lifting seat frame according to claim 1, characterized in that: A limiting opening (26) is provided on the bottom surface of the seventh connecting rod (19), a third limiting member (27) cooperating with the limiting opening (26) is installed on the side of the lower end of the ninth connecting rod (21), and an opening (28) for installing the cross bar (4) in the frame assembly (600) is provided at the lower front end of the ninth connecting rod (21).

3. The lifting seat frame according to claim 1, characterized in that: An embedding opening (41) is provided at the upper end of each eighth connecting rod (20), a main beam (40) is installed between the two embedding openings (41), and a thin beam (42) is installed between the two fourteenth connecting rods (30).

4. The lifting seat frame according to claim 1, characterized in that: The invention also comprises a frame assembly (600), wherein a back assembly (400) is mounted on the frame assembly (600), a pedal assembly (300) is mounted on the front end of the back assembly (400), a backrest assembly (200) is mounted on the rear end of the back assembly (400), a drive assembly (500) is mounted in the back assembly (400), and a motor in the drive assembly (500) is connected to the backrest assembly (200).

5. The lifting seat frame according to claim 4, characterized in that: The driving assembly (500) comprises a first driving motor (43) and a second driving motor (44), wherein the front end of the first driving motor (43) is connected to the connecting rod (25), and the rear end of the first driving motor (43) is connected to the crossbar (4); The front end of the second drive motor (44) is connected to the connecting rod (25), and the rear end of the second drive motor (44) is connected to the backrest assembly (200).

6. The lifting seat frame according to claim 4, characterized in that: The frame assembly (600) comprises a frame (35) and a cross bar (4), wherein the frame (35) is connected to the back assembly (400), the cross bar (4) is mounted on the chassis assembly (100), a cross beam (7) is mounted at the front end of the cross bar (4), a cross plate (36) is mounted on the left and right inner walls of the frame (35), a clearance hole (37) is provided at both the front and rear ends of the cross plate (36), a fourth limiting member (38) is mounted at the front end of the thirteenth connecting rod (29), and a limiting groove (39) protruding upward and cooperating with the fourth limiting member (38) is provided at the front end of the cross plate (36).

7. The lifting seat frame according to claim 4, characterized in that: The pedal assembly (300) comprises a first connecting rod (12) and a second connecting rod (13), wherein the first connecting rod (12) and the second connecting rod (13) are cross-connected and connected via a pin shaft, the front end of the first connecting rod (12) is connected to a third connecting rod (14), the front end of the second connecting rod (13) is connected to a fourth connecting rod (15), the third connecting rod (14) and the fourth connecting rod (15) are cross-connected and connected via a pin shaft, the front end of the third connecting rod (14) is connected to a small footrest (11), the front end of the fourth connecting rod (15) is connected to a fifth connecting rod (16), the front end of the fifth connecting rod (16) is connected to a large footrest (10), the rear end of the large footrest (10) is connected to the front end of the small footrest (11), and the rear end of the small footrest (11) is connected to the fifth connecting rod (16) via a sixth connecting rod (17).

8. The lifting seat frame according to claim 4, characterized in that: The chassis assembly (100) comprises a chassis (1), a column (2) is installed on the chassis (1), a rotating shaft (3) is installed in the column (2), a cross bar (4) of a frame assembly (600) is installed on the rotating shaft (3), a plurality of suspension rods (5) are installed on the cross bar (4) of the frame assembly (600), a front end of the cross bar (4) of the frame assembly (600) is connected to a first limiting member (6) through a lifting ear, a connecting member (8) for connecting a first driving motor (43) is installed at the rear end of the cross bar (4) of the frame assembly (600), a lower end of the suspension rod (5) is connected to one end of the first limiting member (6), and the other end of the first limiting member (6) is located below the cross beam (7) of the frame assembly (600) for limiting the cross beam (7) of the frame assembly (600).

9. The lifting seat frame according to claim 7, characterized in that: A second limiting member (18) is installed on the inner side of the first connecting rod (12).

10. The lifting seat frame according to claim 8, characterized in that: An elastic member (9) is sleeved on the suspension rod (5) between the cross bar (4) and the first limiting member (6) in the frame assembly (600).

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