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 first extension rod and a transmission rod, one end of the first extension rod is hinged with the seat plate mounting plate, and the other end of the first extension rod is hinged with the transmission rod; the backrest mounting plate is arranged on the linkage mechanism, and the front part of the backrest mounting plate is hinged with the transmission rod at a hinge point A; and a driving mechanism. In the process that the zero-wall sofa iron stand is adjusted from a sitting posture position to a lying posture position, a seat plate mounting plate can move forwards to drive a backrest mounting plate to move forwards, meanwhile, a first extension rod can rotate forwards to drive the backrest mounting plate to move forwards relative to the seat plate mounting plate, the two forward moving modes are carried out synchronously, the backrest mounting plate moves forwards by a longer distance, and the backrest mounting plate can move forwards by a longer distance. Therefore, a large enough backward tilting distance is reserved behind the backrest mounting plate.

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 mounting plate does not tilt, and the footrest is curled up under the seat mounting plate, and in the lying position, the backrest mounting plate tilts backward, and the footrest is unfolded.

[0003] At present, when most families place electric sofas, in order to make full use of the space in the room, the sofa backrest will be close to the wall when the sofa is in the sitting position. However, when it needs to be adjusted to a 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, and the backrest mounting plate is moved forward by the forward movement of the seat mounting plate, so that the sofa is as close to the wall as possible when in the sitting position.

[0005] However, in the above solution, the forward movement distance of the backrest mounting plate is the same as that of the seat mounting plate. This connection method limits the forward movement distance of the backrest mounting plate and the zero-wall effect is poor. Utility Model Content

[0006] 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, which is arranged at the rear of the seat mounting plate, and includes: a first extension rod and a transmission rod, one end of the first extension rod is hinged to the seat mounting plate, and the other end is hinged to the transmission rod; a backrest mounting plate, which is arranged on the linkage mechanism, and the front part of the backrest mounting plate is hinged to the transmission rod at a hinge point A; and a driving mechanism; wherein the iron frame of the sofa with zero wall support is suitable for changing between at least a sitting position and a lying position under the action of the driving mechanism; the first extension rod is tilted forward by a maximum of 40° in the lying position compared with the sitting position.

[0007] Furthermore, the hinge point A is moved forward by 180 mm to 320 mm in the lying position compared to the sitting position.

[0008] Furthermore, the first extension rod is tilted forward by at most 30° in the lying position compared to the sitting position.

[0009] Furthermore, the first extension rod is inclined forward by 22° in the lying position compared to the sitting position.

[0010] Furthermore, the hinge point A is moved forward by 220 mm to 250 mm in the lying position compared to the sitting position.

[0011] Furthermore, the hinge point A is moved forward by 235 mm in the lying position compared to the sitting position.

[0012] Furthermore, the linkage mechanism also includes: a turning rod and a second extension rod; wherein one end of 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 other end of the transmission rod is hinged to the turning rod.

[0013] Furthermore, the zero-wall sofa iron frame also includes: a bottom plate mounting plate; wherein the rear portion of the backrest mounting plate is hinged to the turning rod via a backrest pull rod; and the lower end of the turning rod is hinged to the bottom plate mounting plate via a bottom plate pull rod.

[0014] 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.

[0015] 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.

[0016] The beneficial effect of the utility model is that when the iron frame of the zero-wall sofa is adjusted from a sitting position to a lying position, the seat mounting plate will move forward to drive the backrest mounting plate to move forward, and at the same time, the first extension rod will rotate forward, thereby driving the backrest mounting plate to move forward relative to the seat mounting plate, and the two forward movement methods are carried out simultaneously, so that the backrest mounting plate moves forward a longer distance, so as to leave a sufficiently large backward tilting distance behind the backrest mounting plate.

[0017] 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.

[0018] 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

[0019] 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.

[0020] Figure 1 This is a structural diagram of the zero wall-mounted sofa iron frame in the sitting position;

[0021] Figure 2 This is a structural diagram of the zero wall-mounted sofa iron frame in a lying position;

[0022] Figure 3 This is a schematic diagram of the structure of this zero sofa when sitting against the wall;

[0023] Figure 4 It is a schematic diagram of the structure of this zero sofa in a lying position against a wall.

[0024] In the figure:

[0025] Seat mounting plate 1;

[0026] Linkage mechanism 2, first extension rod 21, transmission rod 22, turning rod 23, second extension rod 24;

[0027] Backrest mounting plate 3, backrest pull rod 31;

[0028] Bottom plate mounting plate 4, bottom plate tie rod 41;

[0029] Sofa backrest 5, backrest connecting hole 51;

[0030] Sofa bottom plate 6, bottom plate connecting hole 61;

[0031] Footrest mechanism 7. DETAILED DESCRIPTION

[0032] 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.

[0033] like Figure 1 , Figure 2As shown, at least one embodiment provides an iron frame of a sofa with zero wall support, 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 first extension rod 21 and a transmission rod 22, one end of the first extension rod 21 is hinged to the seat mounting plate 1, and the other end is hinged to the transmission rod 22; a backrest mounting plate 3, which is arranged on the linkage mechanism 2, and the front part of which is hinged to the transmission rod 22 at a hinge point A; and a driving mechanism; wherein the iron frame of the sofa with zero wall support is suitable for changing between at least a sitting position and a lying position under the action of the driving mechanism; the

[0034] In some embodiments, when the zero-wall sofa iron frame is adjusted from a sitting position to a lying position, the seat mounting plate 1 will move forward to drive the backrest mounting plate 3 to move forward, and at the same time, the first extension rod 21 will rotate forward, thereby driving the backrest mounting plate 3 to move forward relative to the seat mounting plate 1. The two forward movement methods are performed simultaneously, so that the backrest mounting plate 3 moves forward a longer distance, so as to leave a sufficiently large backward tilting distance behind the backrest mounting plate 3.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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 hinged to the first extension rod 21 and the turning rod 23 respectively, 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; the above-mentioned structure, during the linkage process, can not only drive the backrest mounting plate 3 forward through the seat mounting plate 1, but also drive the backrest mounting plate 3 forward through the first extension rod 21, and finally can make the backrest mounting plate 3 tilt backward.

[0041] In some embodiments, the first extension rod 21 is tilted forward by at most 40° in the lying position compared to the sitting position, preferably, tilted forward by at most 30°; more preferably, tilted forward by 22°.

[0042] In some embodiments, the hinge point A is moved forward by 180 mm to 320 mm in the lying position compared to the sitting position; preferably, it is moved forward by 220 mm to 250 mm; more preferably, it is moved forward by 235 mm.

[0043] like Figure 3 , Figure 4 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] To sum up, during the process of adjusting the iron frame of the zero-wall sofa from a sitting position to a lying position, the seat mounting plate 1 will move forward to drive the backrest mounting plate 3 to move forward, and at the same time, the first extension rod 21 will rotate forward, thereby driving the backrest mounting plate 3 to move forward relative to the seat mounting plate 1, and the two forward movement methods are carried out simultaneously, so that the backrest mounting plate 3 moves forward a longer distance, so as to leave a sufficiently large backward tilting distance behind the backrest mounting plate 3.

[0048] 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.

[0049] 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.

[0050] 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 limiting 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.

[0051] 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 first extension rod (21) and a transmission rod (22), wherein one end of the first extension rod (21) is hinged to the seat mounting plate (1), and the other end is hinged to the transmission rod (22); A backrest mounting plate (3) is arranged on the linkage mechanism (2), and its front portion is hinged to the transmission rod (22) at a hinge point A; 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 first extension rod (21) is tilted forward by a maximum of 40° in the lying position compared to the sitting position.

2. The zero-wall sofa iron frame according to claim 1, characterized in that: The articulation point A is displaced forward by 180 mm to 320 mm in the lying position compared to the sitting position.

3. The zero-wall sofa iron frame as claimed in claim 1, characterized in that: The first extension rod (21) is tilted forward by a maximum of 30° in the lying position compared to the sitting position.

4. The zero-wall sofa iron frame as claimed in claim 1, characterized in that: The first extension rod (21) is inclined forward by 22° in the lying position compared to the sitting position.

5. The zero-wall sofa iron frame as claimed in claim 2, characterized in that: The articulation point A is displaced forward by 220 mm to 250 mm in the lying position compared to the sitting position.

6. The zero-wall sofa iron frame as claimed in claim 2, characterized in that: The articulation point A is displaced forward by 235 mm in the lying position compared to the sitting position.

7. The zero-wall sofa iron frame as claimed in claim 1, characterized in that: The linkage mechanism (2) further comprises: a turning rod (23) and a second extension rod (24); wherein One end of the second extension rod (24) is fixedly connected to the seat plate mounting plate (1), the turning rod (23) and the second extension rod (24) are hinged at a hinge point B, and the other end of the transmission rod (22) is hinged to the turning rod (23).

8. The zero-wall sofa iron frame as claimed in claim 7, characterized in that: Also includes: Base plate mounting plate (4); wherein The rear portion of the backrest mounting plate (3) is hingedly connected to the turning rod (23) via a backrest pull rod (31); 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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