Electric sofa

Abstract

The utility model discloses an electric sofa which comprises a main body frame, a seat cushion support and a foot pad support are arranged on the main body frame, the foot pad support is connected with the seat cushion support, a back cushion support is arranged on the seat cushion support, a headrest support is hinged to the back cushion support, and the headrest support is connected with the foot pad support. A linkage mechanism is arranged between the back cushion support and the seat cushion support, a first driving mechanism is arranged on the seat cushion support to drive the seat cushion support to deform and is in linkage with the back cushion support, and a second driving mechanism is arranged on the foot pad support to drive the foot pad support to deform, so that the electric sofa has various postures. And the requirements of most users can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of sofas, and more particularly relates to an electric sofa. Background Art

[0002] As people's living standards gradually improve, electric sofas have become a necessity for people to enjoy life. Compared with traditional sofas, electric sofas can change the user's posture according to needs, thus being more comfortable. However, many electric sofas on the market currently only have two postures, namely, sitting and lying. When in the sitting position, they are normal sofas, and when in the lying position, the electric sofas are unfolded. For example, patent technology with publication number CN105167431A discloses an electric sofa frame, which drives the entire sofa frame through an electric telescopic rod and only has the above two postures. Therefore, the postures that can be provided are limited and cannot meet the user's various usage postures. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides an electric sofa with multiple postures to meet the needs of most users.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: an electric sofa, comprising a main frame, a seat cushion bracket and a foot pad bracket being provided on the main frame, the foot pad bracket being connected to the seat cushion bracket, a back cushion bracket being provided on the seat cushion bracket, a headrest bracket being hingedly connected to the back cushion bracket, a linkage mechanism being provided between the back cushion bracket and the seat cushion bracket, a first driving mechanism being provided on the seat cushion bracket for driving the seat cushion bracket to deform and simultaneously linking the back cushion bracket, and a second driving mechanism being provided on the foot pad bracket for driving the foot pad bracket to deform;

[0005] The seat support comprises two first support rods connected to the main frame, a first connecting rod and a second connecting rod are hinged at both ends of the first support rod, the first connecting rod is close to the foot pad support, and the second connecting rod is far away from the foot pad support, a seat rod is provided between the first connecting rod and the second connecting rod, the seat rod is hinged to the first connecting rod and the second connecting rod, a first driving rod is provided between the two seat rods, and the first driving mechanism is connected to the first driving rod;

[0006] The foot pad bracket includes two second support rods connected to the two seat cushion rods, a third link is hingedly connected to the end of the second support rod away from the first seat cushion rod, a fourth link is provided on the side of the third link close to the seat cushion rod, and the fourth link is hinged to the second support rod, a fifth link is hinged between the third and fourth links, a sixth link is hinged on the third link, a foot pad rod is hinged between the fifth and sixth links, a foot pad plate is provided between the two foot pad rods, a second driving rod is provided between the two third links, and the second driving mechanism is connected to the second driving rod;

[0007] The linkage mechanism includes a seventh connecting rod hinged on the second connecting rod and a cushion rod hinged on the first supporting rod. The seventh connecting rod and the cushion rod are hinged to each other, and the cushion bracket is connected to the two cushion rods.

[0008] Furthermore, a seat cushion frame is provided between the two seat cushion rods, and the second support rod is connected to the seat cushion frame.

[0009] Furthermore, a first drive mounting rod is provided before the two first support rods, and the first drive mechanism includes a first electric telescopic rod, the fixed end of the first electric telescopic rod is hinged to the first drive mounting rod, and the telescopic end of the first electric telescopic rod is hinged to the first drive rod.

[0010] Furthermore, a second drive mounting rod is provided between the two second support rods, and the second drive mechanism includes a second electric telescopic rod, the fixed end of the second electric telescopic rod is hinged to the second drive mounting rod, and the telescopic end of the second electric telescopic rod is hinged to the second drive rod.

[0011] Furthermore, a first hinge rod is provided on the back cushion bracket, a second hinge rod is provided on the headrest bracket, the first hinge rod and the second hinge rod are hingedly connected, and a third driving mechanism is provided between the headrest bracket and the back cushion bracket.

[0012] Furthermore, the third connecting rod is a straight rod, the fourth connecting rod is a concave rod, the two ends of the fourth connecting rod are respectively hinged to the second support rod and the fifth connecting rod, the fifth connecting rod is a V-shaped rod, the two ends of which are respectively hinged to the fourth connecting rod and the foot pad rod, and the V-shaped bottom is hinged to the third connecting rod.

[0013] Furthermore, the main frame includes a bottom frame and a backrest frame, the first support rod is connected to the bottom frame, and the backrest frame is provided with a supporting inclined surface and a headrest groove corresponding to the headrest bracket.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the electric sofa has a variety of postures, which can meet the needs of most users, including three main postures. The first is the normal sofa seat posture, the second is that the seat cushion bracket is tilted and raised, the back cushion bracket and the headrest bracket are located in the same plane, and the angle between the back cushion bracket and the seat cushion bracket is increased, and the third is that the foot pad bracket is raised and tilted in the second posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the electric sofa of the utility model in the first main posture;

[0016] Figure 2 This is a schematic structural diagram of the electric sofa of the utility model in the second main posture;

[0017] Figure 3 This is a schematic diagram of the structure of the electric sofa of the utility model in the third main posture;

[0018] Figure 4 This is a schematic diagram of the structure of the electric sofa in the utility model when the seat cushion bracket is retracted;

[0019] Figure 5 This is a schematic diagram of the structure of the electric sofa when the seat cushion bracket is extended;

[0020] Figure 6 This is a schematic diagram of the structure of the electric sofa footrest support when it is retracted;

[0021] Figure 7 This is a schematic diagram of the structure of the electric sofa when the foot pad bracket is extended.

[0022] Figure numerals: cushion bracket 1; headrest bracket 2; first support rod 3; first connecting rod 4; second connecting rod 5; seat cushion rod 6; first drive rod 7; second support rod 8; third connecting rod 9; fourth connecting rod 10; fifth connecting rod 11; sixth connecting rod 12; foot pad rod 13; foot pad 14; second drive rod 15; seventh connecting rod 16; cushion rod 17; seat cushion frame 18; first drive mounting rod 19; first electric telescopic rod 20; second drive mounting rod 21; second electric telescopic rod 22; first articulated rod 23; second articulated rod 24; bottom frame 25; backrest frame 26; support inclined surface 27; headrest groove 28; support plate 29; connecting section 30; fixing plate 31. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0025] Reference Figures 1 to 7 The utility model is further described.

[0026] An electric sofa comprises a main frame, a seat cushion bracket 6 and a foot pad bracket provided on the main frame, the foot pad bracket being connected to the seat cushion bracket 6, a back cushion bracket 1 being provided on the seat cushion bracket 6, a headrest bracket 2 being hingedly connected to the back cushion bracket 1, a linkage mechanism being provided between the back cushion bracket 1 and the seat cushion bracket 6, a first driving mechanism being provided on the seat cushion bracket 6 for driving the seat cushion bracket 6 to deform and simultaneously linking the back cushion bracket 1, and a second driving mechanism being provided on the foot pad bracket for driving the foot pad bracket to deform;

[0027] The seat support 6 includes two first support rods 3 connected to the main frame, with a first connecting rod 4 and a second connecting rod 5 hinged at both ends of the first support rod 3, and the first connecting rod 4 is close to the foot pad support, and the second connecting rod 5 is far away from the foot pad support. A seat rod is provided between the first connecting rod 4 and the second connecting rod 5, and the seat rod is hinged to the first connecting rod 4 and the second connecting rod 5. A first driving rod 7 is provided between the two seat rods, and the first driving mechanism is connected to the first driving rod 7;

[0028] The footrest bracket includes two second support rods 8 connected to two seat cushion rods, a third connecting rod 9 is hingedly connected to the end of the second support rod 8 away from the first seat cushion rod, a fourth connecting rod 10 is provided on the side of the third connecting rod 9 close to the seat cushion rod, and the fourth connecting rod 10 is hinged to the second support rod 8, a fifth connecting rod 11 is hinged between the third connecting rod 9 and the fourth connecting rod 10, a sixth connecting rod 12 is hinged on the third connecting rod 9, a footrest rod 13 is hinged between the fifth connecting rod 11 and the sixth connecting rod 12, a footrest plate 14 is provided between the two footrest rods 13, a second driving rod 15 is provided between the two third connecting rods 9, and the second driving mechanism is connected to the second driving rod 15;

[0029] The linkage mechanism includes a seventh connecting rod 16 hinged on the second connecting rod 5 and a cushion rod 17 hinged on the first support rod 3 . The seventh connecting rod 16 and the cushion rod 17 are hinged to each other, and the cushion bracket 1 is connected to the two cushion rods 17 .

[0030] like Figure 1 As shown, in this embodiment, preferably, a cushion frame 18 is provided between the two cushion rods, and the second support rod 8 is connected to the cushion frame 18 .

[0031] like Figure 1As shown, in this example, preferably, a first drive mounting rod 19 is provided before the two first support rods 3, and the first drive mechanism includes a first electric telescopic rod 20, the fixed end of the first electric telescopic rod 20 is hinged to the first drive mounting rod 19, and the telescopic end of the first electric telescopic rod 20 is hinged to the first drive rod 7.

[0032] like Figure 1 As shown, in this example, preferably, a second drive mounting rod 21 is provided between the two second support rods 8, and the second drive mechanism includes a second electric telescopic rod 22, the fixed end of the second electric telescopic rod 22 is hinged to the second drive mounting rod 21, and the telescopic end of the second electric telescopic rod 22 is hinged to the second drive rod 15.

[0033] like Figure 1 As shown, in this example, preferably, a first hinged rod 23 is provided on the cushion bracket 1, a second hinged rod 24 is provided on the headrest bracket 2, the first hinged rod 23 is hinged to the second hinged rod 24, and a third driving mechanism is provided between the headrest bracket 2 and the cushion bracket 1.

[0034] like Figure 1 As shown, in this example, preferably, the third connecting rod 9 is a straight rod, the fourth connecting rod 10 is a concave rod, the two ends of the fourth connecting rod 10 are respectively hinged to the second support rod 8 and the fifth connecting rod 11, the fifth connecting rod 11 is a V-shaped rod, the two ends of which are respectively hinged to the fourth connecting rod 10 and the foot pad rod 13, and the V-shaped bottom is hinged to the third connecting rod 9.

[0035] like Figure 1 As shown, in this example, preferably, the main frame includes a bottom frame 25 and a backrest frame 26, the first support rod 3 is connected to the bottom frame 25, and the backrest frame 26 is provided with a supporting inclined surface 27 and a headrest groove 28 corresponding to the headrest bracket 2.

[0036] The above electric sofa includes three commonly used main postures:

[0037] The first main posture is Figure 1 As shown, the seat cushion bracket 6 and the foot pad bracket are both in a retracted state, wherein the seat cushion frame 18 is in an inclined state, and the end close to the foot pad bracket is higher, and the end close to the back cushion bracket 1 is lower. The back cushion bracket 1 is in an inclined state, and the angle between the seat cushion frame 18 and the back cushion bracket 1 is greater than 90 degrees. The end of the headrest bracket 2 is located in the headrest groove 28 of the backrest frame 26, and the headrest bracket 2 is supported by the headrest groove 28 so that the surface of the headrest bracket 2 is horizontal. The foot pad 14 is close to the end of the bottom frame 25, and the bottom end of the foot pad 14 is closer to the low frame than the upper end, so that the foot pad 14 is slightly tilted inward;

[0038] The second main posture is Figure 2As shown, the headrest bracket 2 rotates first so that it is located in the same plane as the cushion bracket 1, and then the first electric telescopic rod 20 runs, and its telescopic end extends, driving the two seat cushion rods and the seat cushion frame 18 on the seat cushion rods to rotate through the first driving rod 7, and under the limiting action of the first connecting rod 4 and the second connecting rod 5, the end thereof close to the foot pad bracket rotates and tilts up, and the end close to the cushion bracket 1 rotates and descends, that is, the extension of the first electric telescopic rod 20 makes the seat cushion frame 18 more inclined, and the cushion bracket 1 rotates synchronously under the linkage of the linkage mechanism, and the rotation direction is away from the cushion frame 18, that is, the angle between the cushion frame 18 and the cushion bracket 1 becomes larger, and the upper end of the cushion bracket 1 and the headrest bracket 2 are located on the supporting inclined surface 27 of the backrest frame 26. At this time, the foot pad bracket is still in a retracted state, but with the extension of the seat cushion bracket 6, the foot pad 14 is lifted and is in a tilted state;

[0039] The third main posture is Figure 3 As shown, in the second main posture, the second electric telescopic rod 22 is running, and its telescopic end is extended, driving the third connecting rod 9 and the foot pad 14 to rotate through the second driving rod 15, so that the foot pad 14 is higher than the seat cushion frame 18, and at the same time, the foot pad 14 is in an inclined state, and the inclination direction is opposite to the seat cushion frame 18.

[0040] In addition, there is a fourth main posture, that is, the seat cushion bracket 6 is not extended, and the foot pad bracket is extended alone, which can be achieved by the second electric telescopic rod 22. However, in this posture, since the angle between the seat cushion frame 18 and the back cushion bracket 1 is small (greater than 90 degrees but less than 100 degrees), most users are in a relatively uncomfortable state in this posture. Therefore, the applicant usually does not put the control program of the fourth posture into the overall control program of the electric sofa during production, but it can be achieved under the special requirements of customers.

[0041] Specifically, in the first main posture, the headrest bracket 2 can be rotated by the third driving mechanism between the headrest bracket 2 and the back cushion bracket 1 so as to be in a horizontal or inclined state.

[0042] Of course, in order to save costs and space of the electric sofa, the third drive mechanism can be omitted and the rotation of the headrest can be changed to manual. At this time, the headrest bracket 2 cannot maintain the tilted state in the first main posture, and can only maintain the tilt in the second main posture through the support slope 27 on the backrest frame 26.

[0043] In summary, the electric sofa in this example has multiple postures and can meet the needs of most users.

[0044] like Figure 1As shown, specifically, in the first main posture, the first connecting rod 4 is tilted more than the second connecting rod 5, the cushion rod and the first support rod 3 are in a parallel state, and a support plate 29 is integrally connected to the first support rod 3. The width of one end of the support plate 29 is greater than that of the other end. The support plate 29 replaces the first support rod 3 and is connected to the bottom frame 25, so that the first support rod 3 and the cushion rod are tilted, and the cushion frame 18 is also tilted.

[0045] Specifically, an inclined connecting section 30 is provided between the first support rod 3 and the support plate 29 , so that a gap is left between the first support rod 3 and the inner wall of the bottom frame 25 , thereby improving the overall supporting strength of the seat cushion bracket 6 .

[0046] like Figure 1 As shown, specifically, the cushion rod 17 is L-shaped, the end of the long section is hinged to the seventh connecting rod 16, the corner between the long section and the short section is hinged to the cushion rod, and a vertical fixing plate 31 is provided on the short section. The cushion bracket 1 is connected to the fixing plate 31, and the side of the cushion bracket 1 is also in contact with the cushion rod 17.

[0047] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An electric sofa, characterized by: The invention comprises a main body frame, wherein a seat cushion bracket and a foot pad bracket are provided on the main body frame, the foot pad bracket is connected to the seat cushion bracket, a back cushion bracket is provided on the seat cushion bracket, a headrest bracket is hingedly connected to the back cushion bracket, a linkage mechanism is provided between the back cushion bracket and the seat cushion bracket, a first driving mechanism is provided on the seat cushion bracket, driving the seat cushion bracket to deform and simultaneously linking the back cushion bracket, and a second driving mechanism is provided on the foot pad bracket, driving the foot pad bracket to deform; The seat support comprises two first support rods connected to the main frame, a first connecting rod and a second connecting rod are hinged at both ends of the first support rod, the first connecting rod is close to the foot pad support, and the second connecting rod is far away from the foot pad support, a seat rod is provided between the first connecting rod and the second connecting rod, the seat rod is hinged to the first connecting rod and the second connecting rod, a first driving rod is provided between the two seat rods, and the first driving mechanism is connected to the first driving rod; The foot pad bracket includes two second support rods connected to the two seat cushion rods, the second support rod is hinged to a third link at the end away from the first seat cushion rod, the third link is provided with a fourth link on the side of the third link close to the seat cushion rod, and the fourth link is hinged to the second support rod, a fifth link is hinged between the third link and the fourth link, a sixth link is hinged on the third link, a foot pad rod is hinged between the fifth link and the sixth link, a foot pad plate is provided between the two foot pads, a second drive rod is provided between the two third links, and the second drive mechanism is connected to the second drive rod; the linkage mechanism includes a seventh link hinged on the second link and a back cushion rod hinged on the first support rod, the seventh link and the back cushion rod are hinged to each other, and the back cushion bracket is connected to the two back cushion rods.

2. The electric sofa according to claim 1, characterized in that: A cushion frame is arranged between the two cushion rods, and the second support rod is connected to the cushion frame.

3. The electric sofa according to claim 1, characterized in that: A first drive mounting rod is provided before the two first support rods. The first drive mechanism includes a first electric telescopic rod. The fixed end of the first electric telescopic rod is hinged to the first drive mounting rod, and the telescopic end of the first electric telescopic rod is hinged to the first drive rod.

4. The electric sofa according to claim 1, characterized in that: A second drive mounting rod is provided between the two second support rods. The second drive mechanism includes a second electric telescopic rod. The fixed end of the second electric telescopic rod is hinged to the second drive mounting rod. The telescopic end of the second electric telescopic rod is hinged to the second drive rod.

5. The electric sofa according to claim 1, characterized in that: The back cushion bracket is provided with a first hinge rod, the headrest bracket is provided with a second hinge rod, the first hinge rod and the second hinge rod are hinged, and a third driving mechanism is provided between the headrest bracket and the back cushion bracket.

6. The electric sofa according to claim 1, characterized in that: The third connecting rod is a straight rod, the fourth connecting rod is a concave rod, the two ends of the fourth connecting rod are respectively hinged to the second support rod and the fifth connecting rod, the fifth connecting rod is a V-shaped rod, the two ends of which are respectively hinged to the fourth connecting rod and the foot pad rod, and the V-shaped bottom is hinged to the third connecting rod.

7. The electric sofa according to claim 1, characterized in that: The main frame includes a bottom frame and a backrest frame, the first support rod is connected to the bottom frame, and the backrest frame is provided with a supporting inclined surface and a headrest groove corresponding to the headrest bracket.

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