Zero-wall sofa iron stand and zero-wall sofa

Abstract

The utility model belongs to the technical field of sofa iron stands, and particularly relates to a zero-wall-leaning sofa iron stand and a zero-wall-leaning sofa. The linkage mechanism is arranged at the rear part of the seat plate mounting plate and comprises a turning rod and a second extension rod; a backrest mounting plate; and a driving mechanism. Wherein the zero-wall sofa iron stand is suitable for being at least switched between a sitting posture position and a lying posture position under the action of the driving mechanism; the second extension rod is fixedly connected with the seat plate mounting plate, the turning rod is hinged to the second extension rod at a hinge point B, and the rear part of the backrest mounting plate is hinged to the turning rod at a hinge point C through a backrest pull rod; the included angle alpha of the zero-wall sofa iron stand ranges from 5 degrees to 25 degrees, and the height of the hinge point C descends slowly, so that the backrest mounting plate can incline backwards slowly, and enough time is provided for the backrest mounting plate to move forwards.

Description

Technical Field

[0001] The utility model belongs to the technical field of sofa iron frames, and in particular relates to a zero-wall sofa iron frame and a zero-wall sofa. Background Art

[0002] The electric sofa includes at least two postures: sitting and lying; wherein, in the sitting position, the backrest does not tilt and the footrest is curled up under the seat cushion, and in the lying position, the backrest tilts back and the footrest is unfolded.

[0003] In order to make full use of the space in the room, the sofa backrest will be close to the wall when in the sitting position, but when it needs to be adjusted to the lying position, the sofa backrest is likely to contact the wall.

[0004] In the related art, in order to solve this problem, one end of the backrest mounting plate is connected to a fixed extension rod on the seat mounting plate, so that the backrest mounting plate moves forward during the backward tilting process, thereby making the sofa as close to the wall as possible when in the sitting position.

[0005] However, in the above solution, the backrest mounting plate tilts backward too fast in the initial stage, resulting in the backrest mounting plate being unable to drive the backrest mounting plate to move forward in time.

[0006] Therefore, how to prevent the backrest mounting plate from tilting backward too quickly in the initial stage is a technical problem that those skilled in the art need to solve urgently. Utility Model Content

[0007] In order to solve the technical problems mentioned in the background technology, the utility model provides an iron frame of a sofa with zero wall support, which includes: a seat mounting plate; a linkage mechanism, arranged at the rear of the seat mounting plate, which includes: a turning rod and a second extension rod; a backrest mounting plate; and a driving mechanism; wherein the iron frame of the sofa with zero wall support is suitable for changing at least between a sitting position and a lying position under the action of the driving mechanism; the second extension rod is fixedly connected to the seat mounting plate, the turning rod and the second extension rod are hinged at a hinge point B, and the rear part of the backrest mounting plate is hinged to the turning rod at a hinge point C through a backrest pull rod; in the sitting position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 5° to 25°.

[0008] Furthermore, in the lying position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 35° to 55°.

[0009] Furthermore, the hinge point C is located above the hinge point B.

[0010] Furthermore, in the sitting position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 10° to 20°.

[0011] Furthermore, in the lying position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 40° to 50°.

[0012] Furthermore, the linkage mechanism also includes: a first extension rod and a transmission rod; wherein one end of the first extension rod is hinged to the seat plate mounting plate, and both ends of the transmission rod are respectively hinged to the first extension rod and the turning rod.

[0013] Furthermore, the front portion of the backrest mounting plate is hinged to the transmission rod at a hinge point A.

[0014] Furthermore, the zero-wall sofa iron frame also includes: a bottom plate mounting plate; wherein the lower end of the turning rod is hinged to the bottom plate mounting plate through a bottom plate pull rod.

[0015] In the second aspect, the utility model also provides a zero-wall sofa, which includes: the zero-wall sofa iron frame as described above; a sofa backrest, connected to the backrest mounting plate through a backrest connecting hole; and a sofa bottom plate, connected to the bottom plate mounting plate through a bottom plate connecting hole; wherein in a sitting position, a distance H between the bottom plate connecting hole and the top end surface of the sofa backrest ranges from 640mm to 840mm; and in a sitting position, a distance M between the backrest connecting hole and the rear end surface of the sofa backrest ranges from 110mm to 130mm.

[0016] Further, in the lying position, the distance H between the bottom plate connecting hole and the top end surface of the sofa backrest ranges from 460mm to 660mm; and in the lying position, the distance M between the backrest connecting hole and the rear end surface of the sofa backrest ranges from 285mm to 315mm.

[0017] The beneficial effect of the present invention is that the seat mounting plate of the zero-wall sofa iron frame will move forward during the process of adjusting from a sitting position to a lying position, and the forward movement of the seat mounting plate will drive the turning rod to rotate forward around the hinge point B, and the rotation of the hinge point B will drive the backrest mounting plate to tilt backward through the backrest pull rod. Since the seat mounting plate moves forward at a relatively stable speed, the rotation speed of the hinge point B is also relatively stable. Therefore, in this scheme, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is set to 5° to 25°. Compared with about 45°, within the angle range of 5° to 25°, the speed of descending the height of the hinge point C is relatively slow, so that the backrest mounting plate can slowly tilt backward, giving the backrest mounting plate enough time to move forward.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a structural diagram of the zero wall-mounted sofa iron frame in the sitting position;

[0022] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at P in the middle;

[0023] Figure 3 This is a structural diagram of the zero wall-mounted sofa iron frame in a lying position;

[0024] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at the middle Q;

[0025] Figure 5 This is a schematic diagram of the structure of this zero sofa when sitting against the wall;

[0026] Figure 6 It is a schematic diagram of the structure of this zero sofa in a lying position against a wall.

[0027] In the figure:

[0028] Seat mounting plate 1;

[0029] Linkage mechanism 2, first extension rod 21, transmission rod 22, turning rod 23, second extension rod 24;

[0030] Backrest mounting plate 3, backrest pull rod 31;

[0031] Bottom plate mounting plate 4, bottom plate tie rod 41;

[0032] Sofa backrest 5, backrest connecting hole 51;

[0033] Sofa bottom plate 6, bottom plate connecting hole 61;

[0034] Footrest mechanism 7. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] like Figures 1 to 4 As shown, at least one embodiment provides a zero-wall sofa iron frame, which includes: a seat mounting plate 1; a linkage mechanism 2, which is arranged at the rear of the seat mounting plate 1, and includes: a turning rod 23 and a second extension rod 24; a backrest mounting plate 3; and a driving mechanism; wherein the zero-wall sofa iron frame is suitable for changing at least between a sitting position and a lying position under the action of the driving mechanism; the second extension rod 24 is fixedly connected to the seat mounting plate 1, the turning rod 23 and the second extension rod 24 are hinged at a hinge point B, and the rear part of the backrest mounting plate 3 is hinged to the turning rod 23 at a hinge point C through a backrest pull rod 31; in the sitting position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 5° to 25°.

[0037] In some embodiments, the seat mounting plate 1 of the zero-wall sofa iron frame will move forward during the process of adjusting from a sitting position to a lying position. The forward movement of the seat mounting plate 1 will drive the turning rod 23 to rotate forward around the hinge point B, and the rotation of the hinge point B will drive the backrest mounting plate 3 to tilt backward through the backrest pull rod 31. Since the seat mounting plate 1 moves forward at a relatively stable speed, the rotation speed of the hinge point B is also relatively stable. Therefore, in this scheme, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is set to 5° to 25°. Compared with about 45°, within the angle range of 5° to 25°, the speed of descending the height of the hinge point C is relatively slow, so that the backrest mounting plate 3 can slowly tilt backward, giving the backrest mounting plate 3 enough time to move forward.

[0038] In some embodiments, the bottom plate mounting plate 4 is fixedly connected to the sofa bottom plate 6, and the bottom plate mounting plate 4 is stationary during the posture adjustment process of the zero-wall sofa iron frame.

[0039] In some embodiments, the seat mounting plate 1 is movably connected to the base mounting plate 4 via a connecting rod assembly; specifically, the connecting rod assembly is prior art and is not improved.

[0040] In some embodiments, the zero-wall sofa iron frame further includes: a footrest mechanism 7, which is arranged at the front part of the seat mounting plate 1.

[0041] In some embodiments, the driving mechanism can be but is not limited to a linear motor, one end of which is connected to the base mounting plate 4, and the other end is connected to a connecting rod in the footrest mechanism 7, which drives the footrest mechanism 7 to unfold by movement, and drives the seat mounting plate 1 forward after unfolding; wherein, the driving mechanism is not shown in the figure.

[0042] In some embodiments, the linkage mechanism 2 is arranged at the rear of the seat mounting plate 1, and is respectively connected to the seat mounting plate 1, the bottom mounting plate 4, and the backrest mounting plate 3, thereby driving the backrest mounting plate 3 to move forward and tilt backward during the forward movement of the seat mounting plate 1.

[0043] In some embodiments, the backrest mounting plate 3 is arranged on the linkage mechanism 2, and its front part is hinged to the transmission rod 22 at the hinge point A, and the rear part is hinged to the turning rod 23 at the hinge point C through the backrest pull rod 31; in the process of adjusting the posture of the zero-wall sofa iron frame, the forward and backward movement and forward and backward tilting are achieved through the linkage mechanism 2.

[0044] In some embodiments, specifically, the linkage mechanism 2 includes: a first extension rod 21, a transmission rod 22, a turning rod 23 and a second extension rod 24; wherein, one end of the first extension rod 21 is hinged to the seat mounting plate 1, one end of the second extension rod 24 is fixedly connected to the seat mounting plate 1, the turning rod 23 and the second extension rod 24 are hinged at a hinge point B, both ends of the transmission rod 22 are respectively hinged to the first extension rod 21 and the turning rod 23, the rear part of the backrest mounting plate 3 is hinged to the turning rod 23 through the backrest pull rod 31, and the lower end of the turning rod 23 is hinged to the bottom plate mounting plate 4 through the bottom plate pull rod 41; in the above structure, the seat mounting plate 1 moves forward at a stable speed, and the backrest mounting plate 3 first slowly and then quickly tilts backward to better prevent contact with the wall, so that the sofa can better achieve zero wall contact.

[0045] like Figure 2 As shown, in some embodiments, in the sitting position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 5° to 25°; preferably, the angle α is 10° to 20°; more preferably, the angle α is 15°.

[0046] like Figure 4 As shown, in some embodiments, in the lying position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 35° to 55°; preferably, the angle α is 40° to 50°; more preferably, the angle α is 45°.

[0047] In some embodiments, the hinge point C is located above the hinge point B; this design allows the hinge point C to achieve slow movement near the horizontal plane (25° above to 25° below) to increase the slow movement time.

[0048] like Figure 5 , Figure 6 As shown, some embodiments also provide a zero-wall sofa, which includes: the zero-wall sofa iron frame as described above; a sofa backrest 5, connected to the backrest mounting plate 3 through the backrest connecting hole 51; and a sofa bottom plate 6, connected to the bottom plate mounting plate 4 through the bottom plate connecting hole 61.

[0049] In some embodiments, in the sitting position, the distance H between the bottom plate connecting hole 61 and the top surface of the sofa backrest 5 ranges from 640 mm to 840 mm; in the lying position, the distance H between the bottom plate connecting hole 61 and the top surface of the sofa backrest 5 ranges from 460 mm to 660 mm.

[0050] In some embodiments, in the sitting position, the distance M between the backrest connecting hole 51 and the rear end surface of the sofa backrest 5 ranges from 110 mm to 130 mm; in the lying position, the distance M between the backrest connecting hole 51 and the rear end surface of the sofa backrest 5 ranges from 285 mm to 315 mm.

[0051] Regarding the specific structure and implementation process of the zero-wall sofa, please refer to the relevant discussion in the above embodiment, which will not be repeated here.

[0052] To sum up, the seat mounting plate 1 of the zero-wall sofa iron frame will move forward during the process of adjusting from a sitting position to a lying position. The forward movement of the seat mounting plate 1 will drive the turning rod 23 to rotate forward around the hinge point B, and the rotation of the hinge point B will drive the backrest mounting plate 3 to tilt backward through the backrest pull rod 31. Since the seat mounting plate 1 moves forward at a relatively stable speed, the rotation speed of the hinge point B is also relatively stable. Therefore, in this scheme, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is set to 5° to 25°. Compared with about 45°, within the angle range of 5° to 25°, the speed of descending the height of the hinge point C is relatively slow, so that the backrest mounting plate 3 can slowly tilt backward, giving the backrest mounting plate 3 enough time to move forward.

[0053] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0054] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0056] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating 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 zero-wall sofa iron frame, characterized in that: include: Seat mounting plate (1); The linkage mechanism (2) is arranged at the rear of the seat mounting plate (1), and comprises: a turning rod (23) and a second extension rod (24); a backrest mounting plate (3); and A driving mechanism; wherein The zero-wall sofa iron frame is suitable for changing at least between a sitting position and a lying position under the action of a driving mechanism; The second extension rod (24) is fixedly connected to the seat mounting plate (1), the turning rod (23) and the second extension rod (24) are hinged at a hinge point B, and the rear portion of the backrest mounting plate (3) is hinged to the turning rod (23) at a hinge point C via a backrest pull rod (31); In the sitting position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 5° to 25°.

2. The zero-wall sofa iron frame according to claim 1, characterized in that: In the lying position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 35° to 55°.

3. The zero-wall sofa iron frame as claimed in claim 1, characterized in that: The hinge point C is located above the hinge point B.

4. The zero-wall sofa iron frame as claimed in claim 1, characterized in that: In the sitting position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 10° to 20°.

5. The zero-wall sofa iron frame as claimed in claim 2, characterized in that: In the lying position, the angle α between the straight line where the hinge point B and the hinge point C are located and the horizontal plane is 40° to 50°.

6. The zero-wall sofa iron frame according to claim 1, characterized in that: The linkage mechanism (2) further comprises: a first extension rod (21) and a transmission rod (22); wherein One end of the first extension rod (21) is hinged to the seat plate mounting plate (1), and both ends of the transmission rod (22) are respectively hinged to the first extension rod (21) and the turning rod (23).

7. The zero-wall sofa iron frame as claimed in claim 6, characterized in that: The front portion of the backrest mounting plate (3) is hinged to the transmission rod (22) at a hinge point A.

8. The zero-wall sofa iron frame as claimed in claim 7, characterized in that: Also includes: Base plate mounting plate (4); wherein The lower end of the turning rod (23) is hinged to the bottom plate mounting plate (4) via a bottom plate pull rod (41).

9. A zero-wall sofa, characterized in that: include: The zero-wall sofa iron frame as described in any one of claims 1 to 8; A sofa backrest (5) connected to the backrest mounting plate (3) via a backrest connecting hole (51); and The sofa bottom plate (6) is connected to the bottom plate mounting plate (4) via the bottom plate connecting hole (61); in In the sitting position, a distance H between the bottom plate connection hole (61) and the top end surface of the sofa backrest (5) ranges from 640 mm to 840 mm; and In the sitting position, a distance M between the backrest connecting hole (51) and the rear end surface of the sofa backrest (5) ranges from 110 mm to 130 mm.

10. The zero-wall sofa according to claim 9, characterized in that: In the lying position, a distance H between the bottom plate connection hole (61) and the top surface of the sofa backrest (5) ranges from 460 mm to 660 mm; as well as In the lying position, the distance M between the backrest connecting hole (51) and the rear end surface of the sofa backrest (5) ranges from 285 mm to 315 mm.

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