CN210471599U - Sofa support device - Google Patents

Abstract

The utility model discloses a sofa support device, be in including base, interlock mechanism and symmetry setting two on the base extend the support, interlock mechanism includes first interlock pole and second interlock pole, the both ends of first interlock pole respectively with two extend the leg joint, the both ends of second interlock pole respectively with two extend the leg joint, the middle part of first interlock pole is provided with first connecting piece, the middle part of second interlock pole is provided with the second connecting piece, first connecting piece with the second connecting piece is connected with the driving piece, first connecting piece with the second connecting piece is used for producing relative movement under the drive of driving piece, in order to drive two extend the support and extend or shrink. Adopt the utility model has the advantages of make the sofa move steadily in the posture transform, sound is less, avoids appearing the speed sudden change, blocks the condition such as dying, rock.

Description

Sofa support device

Technical Field

The utility model relates to a furniture manufacturing technical field especially relates to a sofa support device.

Background

Along with the improvement of living standard of people, the requirements on the function and the comfort degree of furniture products are higher and higher. The multifunctional sofa or the chair is furniture which can realize the stable transformation from sitting posture, leisure posture to lying posture and meet various requirements of sitting posture, leisure posture, sleeping posture, massage posture, rotation posture and the like. Compared with the traditional sofa, the multifunctional sofa has greater superiority. The functional sofa enables the sitting posture of people to be beneficial to the blood circulation of the body and protects the health of people at any time. When the user lies in the lying position, the backrest moves backwards, the spine of the user lies on the sofa, the legs can be completely relaxed, the legs can reach the horizontal position, the legs are supported, and the leg fatigue is relieved. The perfect fit design allows one to relax and relieve during fatigue.

As a preferred sofa seat in leisure, if the design is unreasonable, the sofa seat not only can not relax and relieve fatigue, but also can cause various diseases such as lumbar muscle strain and cumulative trauma diseases. In order to meet the functional requirements and the use comfort level of a user, the sofa stretching support device is designed to have stable motion and small sound in posture change, and the conditions of sudden speed change, deadlocking, shaking and the like are avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a sofa support device.

In order to realize the above object, the utility model provides a sofa support device, be in including base, interlock mechanism and symmetry two on the base extend the support, interlock mechanism includes first trace and second trace, the both ends of first trace respectively with two extend the leg joint, the both ends of second trace respectively with two extend the leg joint, the middle part of first trace is provided with first connecting piece, the middle part of second trace is provided with the second connecting piece, first connecting piece with the second connecting piece is connected with the driving piece, first connecting piece with the second connecting piece is used for producing relative movement under the drive of driving piece, in order to drive two extend the support and extend or shrink.

Furthermore, each extension support comprises a backrest mechanism, a seat plate linkage mechanism and a leg extension mechanism which are connected in sequence.

Further, the base is two bar chassis of parallel arrangement.

Further, the seat plate linkage mechanism is rotatably connected with the strip-shaped bottom frame through a first supporting piece and a second supporting piece.

Further, bedplate link gear includes L shape seat frame mounting panel, first connecting rod, second connecting rod and third connecting rod, the one end and the first seat frame leg joint of first connecting rod, the other end and the third seat frame leg joint of first connecting rod, the one end of second connecting rod with first support piece is connected, the other end and the second seat frame leg joint of second connecting rod, the one end and the second seat frame leg joint of third connecting rod, the other end of third connecting rod with shank extension mechanism connects, first seat frame support, second seat frame support and third seat frame support all set up on the L shape seat frame mounting panel.

Further, the backrest mechanism is rotatably connected with the seat plate linkage mechanism through the third seat frame bracket and the first connecting rod.

Furthermore, the leg stretching mechanism is arranged at the front end of the seat plate linkage mechanism and is rotatably connected with the L-shaped seat frame mounting plate.

Furthermore, two ends of the first linkage rod are respectively connected with the two first stretching pieces in a rotating mode.

Furthermore, two ends of the second linkage rod are respectively connected with the two first linkage rods in a rotating mode.

Further, first connecting piece with first trace is welding, cup joints, joint or screwed connection, the second connecting piece with second trace is welding, cup joints, joint or screwed connection.

Furthermore, a first limiting pin, a second limiting pin and a third limiting pin are further arranged on the seat plate linkage mechanism, the first limiting pin is fixed on the second seat frame support, the second limiting pin is fixed on the third seat frame support, and the third limiting pin is fixed on the first seat frame support.

Furthermore, a seat frame protection plate is further arranged on the L-shaped seat frame installation plate and fixed at the bent position of the L-shaped seat frame installation plate.

Furthermore, the sofa support device is also provided with at least one balance rod, and two ends of the balance rod are respectively fixed on the two second supporting pieces.

Furthermore, the sofa support device is further provided with at least one torsion resistant rod, and two ends of the torsion resistant rod are respectively fixed on the two first supporting pieces.

Further, the cross section of the first linkage rod and the second linkage rod is circular, rectangular or L-shaped.

Furthermore, the first linkage rod and the second linkage rod are connected with the driving piece through a rotating shaft, and the rotating shaft is a bolt or a rotating bolt.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model discloses a first connecting piece and second connecting piece are connected with the driving piece, and first connecting piece and second connecting piece set up respectively at the middle part of first interlock pole and second interlock pole, and first connecting piece and second connecting piece produce relative movement under the drive of driving piece to drive two and extend the support and extend or shrink, make both sides extend the support atress more steady, the interlock structure is more retrencied.

(2) The utility model discloses first trace sets up between two bedplate link gear, and the second trace sets up between two shank extend the mechanism, both can drive the motion that bedplate link gear and shank extend the mechanism respectively through the motion of first trace and second trace, has still played the effect of supporting with the stabilising arrangement.

(3) The utility model discloses simple structure, the batch production of being convenient for makes and installs.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical means in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a sofa support device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a connection mode of the extendable bracket according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a sitting posture state of the extension bracket according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a leisure posture state of the extension bracket according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a lying posture state of the stretching bracket according to an embodiment of the present invention.

Wherein the reference numerals are: 1-a base, 11-a bar-shaped chassis, 2-a linkage mechanism, 21-a first linkage rod, 22-a second linkage rod, 211-a first connecting piece, 221-a second connecting piece, 3-an extension bracket, 31-a backrest mechanism, 32-a seat plate linkage mechanism, 33-a leg extension mechanism, 331-a first extension piece, 332-a second extension piece, 34-a seat frame protection plate, 321-a first supporting piece, 322-a second supporting piece, 323-an L-shaped seat frame installation plate, 324-a first connecting rod, 325-a second connecting rod, 326-a third connecting rod, 328-a first seat frame bracket, 328-a second seat frame bracket, 329-a third seat frame bracket, 4-a balance rod, 5-an anti-torsion bar, 6-a first limit pin, 7-a second limit pin, 8-a third limit pin.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings and the usage state of the device, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. Moreover, the terms "first," "second," "third," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

Examples

As shown in fig. 1-5, the embodiment of the present invention provides a sofa support device, which comprises a base 1, a linkage mechanism 2 and two extending supports 3 symmetrically disposed on the base 1, wherein the linkage mechanism 2 comprises a first linkage rod 21 and a second linkage rod 22, two ends of the first linkage rod 21 are respectively connected to the extending supports 3, two ends of the second linkage rod 22 are respectively connected to the extending supports 3, a first connecting piece 211 is disposed at the middle of the first linkage rod 21, a second connecting piece 221 is disposed at the middle of the second linkage rod 22, the first connecting piece 211 is connected to the second connecting piece 221, the first connecting piece 211 is used for generating relative movement under the driving of the driving piece, so as to drive the extending supports 3 to extend or retract.

Specifically, each of the extension brackets 3 includes a backrest mechanism 31, a seat plate link mechanism 32, and a leg extension mechanism 33, which are connected in this order.

Specifically, the base 1 is two strip-shaped bottom frames 11 arranged in parallel, and the seat plate linkage mechanism 32 is rotatably connected with the strip-shaped bottom frames 11 through a first supporting piece 321 and a second supporting piece 322.

Specifically, the seat plate linkage mechanism 32 includes an L-shaped seat frame mounting plate 323, a first link 324, a second link 325, and a third link 326, one end of the first link 324 is connected to a first seat frame bracket 327, the other end of the first link 324 is connected to a third seat frame bracket 329, one end of the second link 325 is connected to the first support member 321, the other end of the second link 325 is connected to a second seat frame bracket 328, one end of the third link 326 is connected to a second seat frame bracket 328, the other end of the third link 326 is connected to the leg stretching mechanism 33, and the first seat frame bracket 327, the second seat frame bracket 328, and the third seat frame bracket 329 are all disposed on the L-shaped seat frame mounting plate 323.

Specifically, the seat plate linkage mechanism 32 is further provided with a first limit pin 6, a second limit pin 7 and a third limit pin 8, the first limit pin 6 is fixed to the second seat frame bracket 328 and is used for abutting against the first link 324 in the extension or contraction process of the extension bracket, the second limit pin 7 is fixed to the third seat frame bracket 329 and is used for abutting against the second support member 322 in the extension or contraction process of the extension bracket, and the third limit pin 8 is fixed to the first seat frame bracket 327 and is used for abutting against the L-shaped seat frame mounting plate 323 and the third link 326 in the extension or contraction process of the extension bracket, so as to limit the range and angle in the extension and contraction process of the extension bracket 3.

Specifically, the backrest mechanism 31 is rotatably connected to the seat plate linkage mechanism 32 through the third seat frame bracket 329 and the first link 324. The backrest mechanism 31 is linked with the seat plate linkage mechanism 32 to realize the forward or backward tilting adjustment movement.

Specifically, the leg extension mechanism 33 is disposed at a front end of the seat plate linkage mechanism 32, and is rotatably connected to the L-shaped seat frame mounting plate 323. The leg stretching mechanism 33 comprises a first stretching part 331 and a second stretching part 332 which are arranged in parallel, the first stretching part 331 is rotatably connected with the first linkage rod 21, and the second stretching part 332 is rotatably connected with the L-shaped seat frame mounting plate 323.

Specifically, two ends of the first linkage rod 21 are rotatably connected to the two first extending members 331 on the left and right sides, two ends of the second linkage rod 22 are rotatably connected to the two first linkage rods 324 on the left and right sides, respectively, and the first linkage rod 21 and the second linkage rod 22 are driven by the driving member to move relatively, so as to drive the seat plate linkage mechanism 32 and the leg extending mechanism 33 to extend or retract. In some embodiments, the first linkage 21 and the second linkage 22 can move simultaneously to extend or retract the leg extension mechanism 33 and the seat plate linkage 32. In other embodiments, the first linkage 21 and the second linkage 22 can also move independently to drive the leg extension mechanism 33 and the seat plate linkage 32 to extend or retract, respectively.

Specifically, the cross section of the first linkage rod 21 and the second linkage rod 22 is circular, rectangular or L-shaped. The first connecting piece 211 and the second connecting piece 221 are connected with a driving piece through a rotating shaft, and the rotating shaft is a bolt or a rotating bolt. First connecting piece (211) with first trace (21) are welding, cup joint, joint or screw connection, second connecting piece (221) with second trace (22) are welding, cup joint, joint or screw connection.

Specifically, a seat frame protection plate 34 is further disposed on the L-shaped seat frame mounting plate 323, and the seat frame protection plate 34 is fixed at a bent portion of the L-shaped seat frame mounting plate 323. The seat frame protection plate 34 is used for protecting and reinforcing the strength of the L-shaped seat frame installation plate, and the bearing capacity of the sofa is enhanced. In practical applications, the seat frame protection plate 34 may be plate-shaped, rod-shaped or angle iron-shaped as required.

Specifically, the sofa stretching device is further provided with at least one balance bar 4, and two ends of the balance bar 4 are respectively fixed on the left and right second supporting members 322. In some embodiments, the balance bar 4 may be designed into a circular tube with a radian according to requirements, or may be a square tube or a rod member with other shapes, and the balance bar 4 has the functions of enhancing the stability of the sofa and ensuring the balanced stress of the stretching brackets on the left and right sides of the sofa.

Specifically, the sofa stretching device is further provided with at least one torsion bar 5, and two ends of the torsion bar 5 are respectively fixed on the left and right first supporting members 321. In some embodiments, the torsion resistant bar 5 may also be a round tube, a square tube or another rod with a curvature, which has the effect of preventing the two-side extension bracket 3 from twisting and unbalanced force applied to the two sides during extension or contraction.

Specifically, the driving member is a spring, a push rod motor or a slide block motor and other driving mechanisms, and different driving modes such as electric driving or manual driving can be adopted.

As shown in fig. 3-5, in order to illustrate the sofa support device in the sitting posture, the leisure posture and the lying posture according to the present invention, as shown in fig. 3, the sitting posture state and the extension support are in the retracted state, the backrest mechanism 31 and the leg extension mechanism 33 are retracted toward the middle, and at this time, the first linking rod 21 and the second linking rod 22 are closest to each other. As shown in fig. 4, in the leisure posture, the angle of the backrest mechanism 31 is kept substantially unchanged when sitting, the leg stretching mechanism 33 is unfolded forward, the first linkage 21 is expected to translate forward, and the second linkage 22 rotates by a certain angle and translates forward. As shown in fig. 5, in the lying posture, the seat plate linkage mechanism 32 drives the leg stretching mechanism 33 to continue to translate forward based on the leisure posture, and the backrest mechanism 31 tilts backward, at this time, the distance between the first linkage rod 21 and the second linkage rod 22 is farthest.

The utility model discloses a two extend support 3, two are provided with interlock mechanism 2 between extending support 3, drive the motion of interlock mechanism 2 through the driving piece to make and extend support 3 and extend or contract. Compared with the traditional spring driving, the speed sudden change can be avoided, the movement process can be more stable by controlling the movement of the linkage mechanism 2, and the running sound is reduced. The utility model discloses first trace 21 sets up between two bedplate link gear 32, and second trace 22 sets up between two shank extend mechanism 33, both can drive bedplate link gear 32 and shank extend the motion of mechanism 33 respectively through the motion of first trace 21 and second trace 22, simultaneously first trace and second trace have still played the effect of supporting with the stabilising arrangement.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims (16)

1. A sofa support device is characterized by comprising a base (1), a linkage mechanism (2) and two extending supports (3) symmetrically arranged on the base (1), wherein the linkage mechanism (2) comprises a first linkage rod (21) and a second linkage rod (22), two ends of the first linkage rod (21) are respectively connected with the two extending supports (3), two ends of the second linkage rod (22) are respectively connected with the two extending supports (3), a first connecting piece (211) is arranged in the middle of the first linkage rod (21), a second connecting piece (221) is arranged in the middle of the second linkage rod (22), the first connecting piece (211) and the second connecting piece (221) are connected with a driving piece, and the first connecting piece (211) and the second connecting piece (221) are used for generating relative movement under the driving of the driving piece, so as to drive the two extension brackets (3) to extend or contract.

2. A sofa support device according to claim 1, characterised in that each of the stretching brackets (3) comprises a backrest means (31), a seat plate linkage means (32) and a leg stretching means (33) connected in series.

3. The sofa support device according to claim 1, wherein the base (1) is two strip-shaped bottom frames (11) arranged in parallel.

4. The sofa support according to claim 2, wherein the seat-plate linkage (32) is pivotally connected to the bar-shaped base-frame (11) by a first support (321) and a second support (322).

5. The sofa support apparatus according to claim 2, wherein the seat plate linkage (32) includes an L-shaped seat frame mounting plate (323), a first link (324), a second link (325), and a third link (326), one end of the first connecting rod (324) is connected with a first seat frame bracket (327), the other end of the first connecting rod (324) is connected with a third seat frame bracket (329), one end of the second connecting rod (325) is connected with the first supporting piece (321), the other end of the second connecting rod (325) is connected with the second seat frame bracket (328), one end of the third connecting rod (326) is connected with the second seat frame bracket (328), the other end of the third connecting rod (326) is connected with the leg stretching mechanism (33), the first seat frame support (327), the second seat frame support (328) and the third seat frame support (329) are all arranged on the L-shaped seat frame mounting plate (323).

6. A sofa support assembly according to claim 5, characterised in that the backrest mechanism (31) is pivotally connected to the seat plate linkage (32) by a third seat frame bracket (329) and the first link (324).

7. The sofa support apparatus according to claim 2, wherein the leg extension mechanism (33) is provided at the front end of the seat plate linkage mechanism (32) and is pivotally connected to the L-shaped seat frame mounting plate (323).

8. The sofa support according to claim 1, wherein the first linkage rod (21) is pivotally connected at both ends to the two first extending members (331), respectively.

9. The sofa support apparatus according to claim 1, wherein the two ends of the second linkage (22) are respectively connected to the two first connecting rods (324) in a rotating manner.

10. The sofa support apparatus according to claim 1, wherein the first connecting member (211) is connected to the first linkage rod (21) by welding, socket joint, snap joint, or screws, and the second connecting member (221) is connected to the second linkage rod (22) by welding, socket joint, snap joint, or screws.

11. The sofa support according to claim 5, wherein the seat plate linkage mechanism (32) further comprises a first stopper pin (6), a second stopper pin (7) and a third stopper pin (8), the first stopper pin (6) is fixed on the second seat frame support (328), the second stopper pin (7) is fixed on the third seat frame support (329), and the third stopper pin (8) is fixed on the first seat frame support (327).

12. The sofa support according to claim 5, wherein the L-shaped seat frame mounting plate (323) is further provided with a seat frame protecting plate (34), and the seat frame protecting plate (34) is fixed at the bent position of the L-shaped seat frame mounting plate (323).

13. The sofa support according to claim 1, wherein at least one balancing pole (4) is further provided, and both ends of the balancing pole (4) are fixed to the two second supporting members (322), respectively.

14. The sofa support device according to claim 1, wherein at least one torsion bar (5) is further provided, and both ends of the torsion bar (5) are fixed to the two first supporting members (321), respectively.

15. The sofa support apparatus according to claim 1, wherein the cross-section of the first linkage rod (21) and the second linkage rod (22) is circular, rectangular or L-shaped.

16. The sofa support assembly according to claim 1, wherein the first connector (211) and the second connector (221) are connected to the driving member by a rotating shaft, the rotating shaft being a bolt or a rotating bolt.

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