Electric sofa bed

Abstract

The present invention discloses an electric sofa bed, comprising a base frame, a seat frame and a backrest frame. In addition, it also comprises a first guide mechanism for guiding the backrest frame to swing, a second guide mechanism for guiding the seat frame to slide horizontally and a driving mechanism for driving the backrest frame to swing. When the driving mechanism drives the backrest frame to swing to be flush with the seat frame, the seat frame slides horizontally out of the base frame in a direction away from the backrest frame, and the electric sofa bed is in a bed state; when the driving mechanism drives the backrest frame to swing to be connected to the seat frame at an obtuse angle, the seat frame slides horizontally into the base frame in a direction close to the backrest frame, and the electric sofa bed is in a sofa state. The electric sofa bed of the present invention can realize the conversion between a sofa and a bed by driving the backrest frame to swing by the driving mechanism, and the operation is simple and convenient. In addition, the backrest angle of the electric sofa bed can be adjusted arbitrarily, making it more diversified and personalized, while improving comfort.

Description

Technical Field

[0001] The invention relates to the field of sofas, in particular to an electric sofa bed. Background Art

[0002] Due to the change of living conditions, the demand for home comfort and multifunctional products has increased. In order to meet the needs of consumers, a variety of sofa products have been launched on the market. Among them, sofa beds are multifunctional furniture that can be used as both sofas and beds. They can meet the various needs of users and improve space utilization.

[0003] Currently, most sofa beds on the market are manually adjusted, the conversion between sofa and bed is cumbersome, and the sofa backrest has a single angle, which makes it less practical. Summary of the invention

[0004] In order to overcome the defects of the prior art described above, the present invention provides an electric sofa bed.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] The present invention provides an electric sofa bed, comprising a base frame, a seat frame arranged on the base frame, and a backrest frame arranged at the rear of the seat frame, wherein:

[0007] It also includes a first guide mechanism disposed between the backrest frame and the seat frame and used to guide the backrest frame to swing, a second guide mechanism disposed between the base frame and the seat frame and used to guide the seat frame to slide horizontally, and a driving mechanism disposed between the backrest frame and the base frame and used to drive the backrest frame to swing;

[0008] When the driving mechanism drives the backrest frame to swing to be flush with the seat frame, the seat frame slides horizontally out of the base frame in a direction away from the backrest frame, and the electric sofa bed is in a bed state; when the driving mechanism drives the backrest frame to swing to be connected to the seat frame at an obtuse angle, the seat frame slides horizontally into the base frame in a direction close to the backrest frame, and the electric sofa bed is in a sofa state.

[0009] The electric sofa bed of the present invention can realize the conversion between a sofa and a bed by driving the backrest frame to swing through a driving mechanism, and the operation is simple and convenient. In addition, the backrest angle of the electric sofa bed can be adjusted arbitrarily, making it more diversified and personalized, and improving comfort at the same time.

[0010] Furthermore, the first guide mechanism is a supporting arc rod arranged on the backrest frame and a guide plate arranged on the seat frame, the guide plate is provided with a slide groove, and the supporting arc rod is provided with a first pulley slidably matched with the slide groove.

[0011] Furthermore, the second guide mechanism is a movable plate arranged on the seat frame and a slide rail arranged on the base frame, and the movable plate is provided with a second pulley that slidably cooperates with the slide rail.

[0012] Furthermore, a baffle for limiting the sliding of the second pulley is provided on the slide rail.

[0013] Furthermore, the driving mechanism comprises a driving motor and a traction rod connected to an output end of the driving motor, the driving motor is hinged on the base frame, and the traction rod is hinged on the backrest frame.

[0014] Furthermore, it also includes a plurality of springs arranged at intervals on the backrest frame and the seat frame, and the plurality of springs are evenly arranged along the length direction of the backrest frame and the seat frame; and a plurality of hooks for hanging the springs are arranged at intervals on the backrest frame and the seat frame.

[0015] Thus, by arranging a plurality of springs on the backrest frame and the seat frame, the backrest and the seat frame resilience can be provided to the sofa user.

[0016] Furthermore, it also includes a return spring which is arranged between the base frame and the seat frame and is used to drive the seat frame to slide horizontally away from the backrest frame.

[0017] Furthermore, both sides of the base frame are provided with inserts for installing handrails.

[0018] Furthermore, the seat frame is provided with a plurality of third pulleys, and the seat frame is slidably arranged on the base frame via the plurality of third pulleys.

[0019] Furthermore, the backrest frame, the base frame and the seat frame are all connected by metal square tubes.

[0020] In summary, the electric sofa bed of the present invention can realize the conversion between sofa and bed by driving the backrest frame to swing through the driving mechanism, and the operation is simple and convenient. In addition, the backrest angle of the electric sofa bed can be adjusted arbitrarily, making it more diversified and personalized, and improving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the electric sofa bed of the present invention when it is in the sofa state;

[0022] Figure 2 for Figure 1 The structural diagram after hiding the spring;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure from another perspective;

[0024] Figure 4 It is a structural schematic diagram of the electric sofa bed of the present invention when it is in a lying state;

[0025] Figure 5 for Figure 4 Schematic diagram of the structure from another perspective.

[0026] The meanings of the reference numerals are as follows:

[0027] 1. Base frame; 2. Seat frame; 3. Backrest frame; 41. Support arc rod; 411. First pulley; 42. Guide plate; 421. Slide groove; 51. Moving plate; 511. Second pulley; 52. Slide rail; 53. Baffle; 54. Return spring; 61. Drive motor; 62. Traction rod; 71. Spring; 72. Hook; 8. Insert strip; 9. Third pulley. DETAILED DESCRIPTION

[0028] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] See also Figure 1-5 The present invention provides an electric sofa bed, comprising a base frame 1, a seat frame 2 arranged on the base frame 1, and a backrest frame 3 arranged at the rear of the seat frame 2. The base frame 1 is a rectangular frame, and a plurality of springs 71 are arranged at intervals along its length direction, so as to provide a backrest rebound force for the sofa user. The seat frame 2 comprises a rectangular frame and a plurality of supporting legs arranged on one side of the rectangular frame. The rectangular frame of the seat frame 2 is also arranged at intervals along its length direction, so as to provide a seat rebound force for the sofa user. The lower ends of the rectangular frame of the seat frame 2 and the plurality of supporting legs are also provided with a plurality of third pulleys 9, so as to achieve sliding in and out of the base frame 1. The base frame 1 is composed of a plurality of horizontal frames and vertical frames to form a support frame, so as to provide a better support force for the sofa user.

[0032] In this embodiment, the base frame 1, the seat frame 2 and the backrest frame 3 are all welded by metal square tubes. The seat frame 2 and the backrest frame 3 are both provided with a plurality of hooks 72 for hanging springs 71.

[0033] See also Figure 2-3 The electric sofa bed also includes a first guide mechanism arranged between the backrest frame 3 and the seat frame 2 and used to guide the backrest frame 3 to swing, a second guide mechanism arranged between the base frame 1 and the seat frame 2 and used to guide the seat frame 2 to slide horizontally, a driving mechanism arranged between the backrest frame 3 and the base frame 1 and used to drive the backrest frame 3 to swing, and a return spring 54 arranged between the base frame 1 and the seat frame 2 and used to drive the seat frame 2 to slide horizontally out of the base frame 1 in a direction away from the backrest frame 3.

[0034] Specifically, the first guide mechanism is a support arc rod 41 provided on the backrest frame 3 and a guide plate 42 provided on the seat frame 2, the guide plate 42 is provided with a slide groove 421 in the shape of a waist hole, and the support arc rod 41 is provided with a first pulley 411 that slides with the slide groove 421. The second guide mechanism is an inverted L-shaped moving plate 51 provided on the seat frame 2 and a slide rail 52 provided on the base frame 1, the moving plate 51 is provided with a second pulley 511 that slides with the slide rail 52, and the slide rail 52 is provided with a baffle 53 for limiting the sliding of the second pulley 511. The drive mechanism includes a drive motor 61 and a traction rod 62 connected to the output end of the drive motor 61, the drive motor 61 is hinged on the base frame 1, and the traction rod 62 is hinged on the backrest frame 3.

[0035] Therefore, when the driving motor 61 drives the traction rod 62 to extend and drive the backrest frame 3 to swing, the first pulley 411 in the support arc rod 41 connected to the backrest frame 3 will slide along the axial direction of the slide groove 421, thereby guiding the backrest frame 3 to swing. When the first pulley 411 slides to one end of the slide groove 421, it will drag the guide plate 42 to move. Since the guide plate 42 is fixedly connected to the seat frame 2, it will drive the second pulley 511 in the moving plate 51 on the seat frame 2 to slide along the slide rail 52, thereby realizing that the seat frame 2 slides horizontally into the base frame 1 until the second pulley 511 abuts against one end of the slide rail 52. At this time, the backrest frame 3 and the seat frame 2 are connected at an obtuse angle, and the electric sofa bed is in the sofa state. When the driving motor 61 drives the traction rod 62 to retract, under the elastic force of the return spring 54, the second pulley 511 in the movable plate 51 will be driven to slide along the slide rail 52 to make the seat frame 2 slide horizontally out of the base frame 1 until the second pulley 511 abuts against the baffle 53 in the slide rail 52. At this time, the seat frame 2 slides horizontally out of the base frame 1, and then the driving motor 61 continues to drive the backrest frame 3 to swing until the first pulley 411 slides to the other end of the slide groove 421. At this time, the backrest frame 3 is flush with the seat frame 2, and the electric sofa bed is in a lying state.

[0036] In addition, the two sides of the base frame 1 are also provided with inserting strips 8 for installing the armrests. When the sofa armrests need to be assembled, the assembly of the sofa armrests can be realized by only matching the connectors on the sofa armrests with the inserting strips 8.

[0037] In summary, the electric sofa bed of the present invention can realize the conversion between sofa and bed by driving the backrest frame 3 to swing through the driving mechanism, and the operation is simple and convenient. In addition, the backrest angle of the electric sofa bed can be adjusted arbitrarily, making it more diversified and personalized, and improving comfort.

[0038] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. An electric sofa bed, comprising a base frame (1), a seat frame (2) arranged on the base frame (1), and a backrest frame (3) arranged at the rear of the seat frame (2), characterized in that: It also includes a first guide mechanism arranged between the backrest frame (3) and the seat frame (2) and used to guide the backrest frame (3) to swing, a second guide mechanism arranged between the base frame (1) and the seat frame (2) and used to guide the seat frame (2) to slide horizontally, and a drive mechanism arranged between the backrest frame (3) and the base frame (1) and used to drive the backrest frame (3) to swing; The first guide mechanism comprises a support arc rod (41) arranged on the backrest frame (3) and a guide plate (42) arranged on the seat frame (2); a slide groove (421) is provided on the guide plate (42); and a first pulley (411) slidably matched with the slide groove (421) is provided on the support arc rod (41); The second guide mechanism comprises a movable plate (51) arranged on the seat frame (2) and a slide rail (52) arranged on the base frame (1); the movable plate (51) is provided with a second pulley (511) slidably matched with the slide rail (52); and the slide rail (52) is provided with a baffle (53) for limiting the sliding of the second pulley (511); The driving mechanism comprises a driving motor (61) and a traction rod (62) connected to an output end of the driving motor (61); the driving motor (61) is hinged on the base frame (1), and the traction rod (62) is hinged on the backrest frame (3); The electric sofa bed further comprises a return spring (54) arranged between the base frame (1) and the seat frame (2) and used for driving the seat frame (2) to slide horizontally away from the backrest frame (3); When the driving mechanism drives the backrest frame (3) to swing upward, the first pulley (411) on the supporting arc rod (41) connected to the backrest frame (3) will slide along the axial direction of the slide groove (421) until the first pulley (411) slides to one end of the slide groove (421), and then the first pulley (411) will drag the guide plate (42) to move. Since the guide plate (42) is fixedly connected to the seat frame (2), the second pulley (511) on the movable plate (51) on the seat frame (2) is driven to slide along the slide rail (52), so that the seat frame (2) slides horizontally into the base frame (1), until the second pulley (511) abuts against one end of the slide rail (52). At this time, the backrest frame (3) and the seat frame (2) are aligned with each other. The seat frame (2) and the backrest frame (3) are connected at an obtuse angle, and the electric sofa bed is in a sofa state; when the driving mechanism drives the backrest frame (3) to swing downward, under the elastic force of the return spring (54), the second pulley (511) on the movable plate (51) is driven to slide along the slide rail (52) so that the seat frame (2) slides horizontally out of the base frame (1) until the second pulley (511) abuts against the baffle (53) in the slide rail (52), at which time the seat frame (2) slides horizontally out of the base frame (1), and then the driving mechanism continues to drive the backrest frame (3) to swing downward until the first pulley (411) slides to the other end of the slide groove (421), at which time the backrest frame (3) is flush with the seat frame (2), and the electric sofa bed is in a bed state.

2. The electric sofa bed according to claim 1, characterized in that: It also includes a plurality of springs (71) arranged at intervals on the backrest frame (3) and the seat frame (2), wherein the plurality of springs (71) are evenly arranged along the length direction of the backrest frame (3) and the seat frame (2); and a plurality of hooks (72) for hanging the springs (71) are arranged at intervals on the backrest frame (3) and the seat frame (2).

3. The electric sofa bed according to claim 1, characterized in that: Insert strips (8) for mounting handrails are provided on both sides of the base frame (1).

4. The electric sofa bed according to claim 1, characterized in that: The rectangular frame of the seat frame (2) and the lower ends of the plurality of supporting legs are also provided with a plurality of third pulleys (9) to enable sliding in and out of the base frame (1).

5. The electric sofa bed according to any one of claims 1 to 4, characterized in that: The backrest frame (3), the base frame (1) and the seat frame (2) are all connected by metal square tubes.

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