CN215776794U - Electric backrest structure - Google Patents
Electric backrest structure Download PDFInfo
- Publication number
- CN215776794U CN215776794U CN202121449906.3U CN202121449906U CN215776794U CN 215776794 U CN215776794 U CN 215776794U CN 202121449906 U CN202121449906 U CN 202121449906U CN 215776794 U CN215776794 U CN 215776794U
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- backrest
- frame
- backrest frame
- hinge joint
- hinged
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Abstract
The utility model discloses an electric backrest structure, which is characterized in that: comprises a backrest frame, a backrest head frame and a connecting rod driving mechanism; the head rest frame is hinged to the top of the backrest frame; the connecting rod driving mechanism comprises an electric push rod, a driving plate and a connecting rod; the driving plate is provided with a left hinge joint, a right hinge joint and a lower hinge joint which are distributed in a triangular mode, the left hinge joint of the driving plate is hinged to the backrest frame, the lower end of the connecting rod is hinged to the right hinge joint of the driving plate, the upper end of the connecting rod is connected to the backrest frame, the motor end of the electric push rod is connected to the backrest frame, the push rod end of the electric push rod is hinged to the lower hinge joint of the driving plate to drive the connecting rod to move up and down, and meanwhile the backrest frame is linked to swing relative to the backrest frame. The angle between the head rest frame and the backrest frame can be adjusted to adapt to different use requirements.
Description
Technical Field
The utility model relates to the technical field of seat accessories, in particular to an electric backrest structure.
Background
The sofa on the market at present mainly includes the sofa seat, sets up in the leg rest subassembly of sofa seat front side and sets up in the back subassembly of sofa seat rear side.
In the prior art, the top of the backrest assembly is provided with a backrest head, and the backrest head and the backrest assembly are of an integral structure. In position adjustment, the headrest can only be adjusted synchronously with the backrest assembly, but the headrest cannot be adjusted independently relative to the backrest assembly. So the relative angle between back subassembly and the headrest on the existing market can't be adjusted, can't satisfy different crowds promptly or the demand to different inclination under different states of the same person, is showing the travelling comfort that has reduced the user and used. There is therefore room for improvement in existing commercial back rest structures.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an electric backrest structure which can adjust the angle between a headrest frame and a backrest frame so as to adapt to different use requirements.
In order to achieve the purpose, the utility model provides the following technical scheme:
an electric backrest structure is characterized in that: comprises a backrest frame, a backrest head frame and a connecting rod driving mechanism;
the head rest frame is hinged to the top of the backrest frame;
the connecting rod driving mechanism comprises an electric push rod, a driving plate and a connecting rod;
the driving plate is provided with a left hinge joint, a right hinge joint and a lower hinge joint which are distributed in a triangular mode, the left hinge joint of the driving plate is hinged to the backrest frame, the lower end of the connecting rod is hinged to the right hinge joint of the driving plate, the upper end of the connecting rod is connected to the backrest frame, the motor end of the electric push rod is connected to the backrest frame, the push rod end of the electric push rod is hinged to the lower hinge joint of the driving plate to drive the connecting rod to move up and down, and meanwhile the backrest frame is linked to swing relative to the backrest frame.
Preferably, the backrest frame and the headrest frame are both of a U-shaped structure, a first connecting assembly is arranged on each side rod of the headrest frame, a second connecting assembly is arranged on each side rod of the backrest frame, and the first connecting assembly and the second connecting assembly are hinged.
Preferably, the first connecting component comprises a first connecting sheet, and the upper side of the first connecting sheet is fixed on the side rod of the head rest; the second connecting assembly comprises a second connecting piece, the lower side of the second connecting piece is fixed on a side rod of the backrest frame, and the upper end of the second connecting piece is hinged with the lower end of the first connecting piece.
Preferably, the first connecting component further comprises a connecting sleeve, the connecting sleeve is fixed on the inner side of the first connecting sheet, a connecting plate is arranged at the upper end of the connecting rod, and a clamping groove capable of being clamped on the connecting sleeve is formed in the connecting plate.
Preferably, reinforcing plates are arranged between the two side rods of the backrest frame and between the two side rods of the backrest frame.
The utility model has the advantages that:
1. the electric push rod can drive the connecting rod to move up and down, so that the headrest frame can swing back and forth relative to the backrest frame in a linkage manner, the effect of adjusting the angle of the headrest frame relative to the backrest frame is realized, the use requirements of the headrest frame at different angles are met, and the use comfort is improved;
2. the matching structures among the electric push rod, the driving plate and the connecting rod, the head rest frame and the backrest frame are compact, the integral thickness of the backrest structure can be reduced, and the backrest is lighter and thinner.
Drawings
Fig. 1 is a schematic view of an electric backrest structure provided in this embodiment;
fig. 2 is a schematic view of the headrest frame provided in this embodiment in different angle states relative to the backrest frame.
Detailed Description
The electric backrest structure of the present invention will be further described with reference to fig. 1 to 2.
An electric backrest structure is characterized in that: comprises a backrest frame 2, a backrest frame 1 and a connecting rod driving mechanism 5. The backrest frame 1 is hinged to the top of the backrest frame 2 and can swing back and forth relative to the backrest frame 2. The link driving mechanism 5 includes an electric push rod 53, a driving plate 52, and a link 51. The driving plate 52 is provided with a left hinge joint, a right hinge joint and a lower hinge joint which are distributed in a triangular manner, the left hinge joint of the driving plate 52 is hinged on a mounting plate 7 of the backrest frame 2, the lower end of the connecting rod 51 is hinged on the right hinge joint of the driving plate 52, the upper end of the connecting rod 51 is connected with the backrest frame 1, the motor end of the electric push rod 53 is hinged on the other mounting plate 6 of the backrest frame 2, the push rod end of the electric push rod 53 is hinged on the lower hinge joint of the driving plate 52 so as to drive the connecting rod 51 to move up and down and simultaneously link the backrest frame 1 to swing relative to the backrest frame 2.
Specifically, the backrest frame 2 and the headrest frame 1 are both U-shaped structures, the first connecting assemblies 3 are respectively arranged on the two side rods 11 of the headrest frame 1, the second connecting assemblies 4 are respectively arranged on the two side rods 22 of the backrest frame 2, and the first connecting assemblies 3 and the second connecting assemblies 4 are hinged to each other, so that the headrest frame 1 is hinged to the upper end of the backrest frame 2.
The first connecting component 3 comprises a first connecting sheet 31, and the upper side of the first connecting sheet 31 is fixed on the side rod 11 of the head rest 1 through two screws; the second connecting assembly 4 comprises a second connecting piece, the lower side of which is fixed on the side lever 22 of the backrest frame 2 by two screws, and the upper end of the second connecting piece is hinged with the lower end of the first connecting piece 31.
The first connecting component 3 further comprises a connecting sleeve 32, the connecting sleeve 32 is inserted and fixed on the inner side of the first connecting sheet 31, the upper end of the connecting rod 51 is connected with a connecting plate 511 through a screw, and the connecting plate 511 is provided with a clamping groove which can be clamped on the connecting sleeve 32, namely the clamping groove is clamped on the circumferential side surface of the connecting sleeve 32.
Reinforcing plates 8 are arranged between the two side rods 11 of the backrest frame 1 and between the two side rods 22 of the backrest frame 2.
The backrest frame 2 is internally provided with a mounting rod 211, and the other mounting plate 6 is positioned on the mounting rod 211 and is connected with the motor end of the electric push rod 53; meanwhile, a mounting structure 21 is formed between the mounting rod 211 and the bottom rod 212 of the backrest frame 2, and the backrest frame 2 is mounted on the sofa seat through the mounting structure 21 so as to form a stable mounting structure 21.
In this embodiment, in order to improve the lightness and thinness of the backrest structure, the plane on which the electric push rod, the drive plate and the connecting rod are located coincides with the plane on which the backrest frame is located as much as possible.
In this embodiment, the adjustment angle of the headrest frame 1 with respect to the backrest frame 2 is about 30 degrees.
The hinges mentioned in the above structures are all realized by pin rods.
Based on the structure, when in specific work: if the electric push rod 53 contracts, the drive plate 52 is driven to rotate clockwise, the drive plate 52 pulls the connecting rod 51 to move downwards, and the connecting rod 51 drives the head rest 1 to swing forwards through the clamping groove on the connecting plate 511; if the electric push rod 53 extends to drive the driving plate 52 to rotate anticlockwise, the driving plate 52 pushes the connecting rod 51 to move upwards, and the connecting rod 51 drives the backrest frame 1 to swing backwards through the clamping groove on the connecting plate 511, so that the angle adjustment of the backrest frame relative to the backrest frame is realized, different use requirements are met, and the use comfort is improved.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (5)
1. An electric backrest structure is characterized in that: comprises a backrest frame, a backrest head frame and a connecting rod driving mechanism;
the head rest frame is hinged to the top of the backrest frame;
the connecting rod driving mechanism comprises an electric push rod, a driving plate and a connecting rod;
the driving plate is provided with a left hinge joint, a right hinge joint and a lower hinge joint which are distributed in a triangular mode, the left hinge joint of the driving plate is hinged to the backrest frame, the lower end of the connecting rod is hinged to the right hinge joint of the driving plate, the upper end of the connecting rod is connected to the backrest frame, the motor end of the electric push rod is connected to the backrest frame, the push rod end of the electric push rod is hinged to the lower hinge joint of the driving plate to drive the connecting rod to move up and down, and meanwhile the backrest frame is linked to swing relative to the backrest frame.
2. The electric backrest structure of claim 1, wherein: the backrest frame and the headrest frame are of U-shaped structures, first connecting assemblies are arranged on two side rods of the headrest frame, second connecting assemblies are arranged on two side rods of the backrest frame, and the first connecting assemblies and the second connecting assemblies are hinged.
3. The electric backrest structure of claim 2, wherein: the first connecting component comprises a first connecting sheet, and the upper side of the first connecting sheet is fixed on the side rod of the head rest; the second connecting assembly comprises a second connecting piece, the lower side of the second connecting piece is fixed on a side rod of the backrest frame, and the upper end of the second connecting piece is hinged with the lower end of the first connecting piece.
4. The electric backrest structure of claim 3, wherein: the first connecting component further comprises a connecting sleeve, the connecting sleeve is fixed on the inner side of the first connecting sheet, a connecting plate is arranged at the upper end of the connecting rod, and a clamping groove capable of being clamped in the connecting sleeve is formed in the connecting plate.
5. The electric backrest structure of claim 2, wherein: reinforcing plates are arranged between the two side rods of the backrest frame and between the two side rods of the backrest frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121449906.3U CN215776794U (en) | 2021-06-28 | 2021-06-28 | Electric backrest structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121449906.3U CN215776794U (en) | 2021-06-28 | 2021-06-28 | Electric backrest structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215776794U true CN215776794U (en) | 2022-02-11 |
Family
ID=80179130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121449906.3U Active CN215776794U (en) | 2021-06-28 | 2021-06-28 | Electric backrest structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215776794U (en) |
-
2021
- 2021-06-28 CN CN202121449906.3U patent/CN215776794U/en active Active
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| GR01 | Patent grant |