CN210330014U

CN210330014U - Sofa linkage support device

Info

Publication number: CN210330014U
Application number: CN201920282296.9U
Authority: CN
Inventors: 李晓鸿; 陈娇; 吴林林
Original assignee: Remacro Machinery and Technology Wujiang Co Ltd
Current assignee: Ruimai Technology Co ltd
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2020-04-17
Anticipated expiration: 2029-03-06

Abstract

The utility model discloses a sofa linkage support device, which comprises a base, a driving mechanism, a sliding mechanism, a first linkage rod, a second linkage rod and two extension supports arranged on the base; one end of the sliding rail is connected with the first linkage rod, the other end of the sliding rail is suspended, the sliding part is arranged on the sliding rail and can slide along the sliding rail, two ends of the first linkage rod and the second linkage rod are respectively connected with the two extending mechanisms, and the second linkage rod is connected with the sliding rail through the sliding part; the driving mechanism comprises a driving motor and a lead screw, the lead screw is arranged inside the slide rail, the driving motor is used for driving the lead screw to rotate, the lead screw is used for driving the sliding part to reciprocate along the slide rail, and the sliding part drives the two extending supports to extend or retract through the first linkage rod and the second linkage rod. The utility model discloses sofa linkage support device simple structure, accuracy are high, make sofa motion steady in the posture transform, and sound is less, avoids appearing the condition of sudden change and rocking.

Description

Sofa linkage support device

Technical Field

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

Background

Nowadays, the sitting health problem of people is increasingly prominent, and in order to solve the health problem brought to human bodies by sitting for a long time, various leisure chairs, massage chairs, zero-gravity sofas and functional sofas with various postures and function changes are developed. Wherein the multifunctional electric sofa has a wider application prospect. The multifunctional sofa or the chair can realize the stable transformation from sitting posture, leisure posture to lying posture, and meet various requirements of sitting posture, leisure posture, sleeping posture and the like. Compared with the traditional sofa, the sofa has greater superiority. When the multifunctional sofa is designed, the method of human engineering, planar bar system kinematics and the like are combined, so that the comfort of the sofa is higher. The use of the functional sofa is beneficial to the blood circulation of the body and protects the health of people at any time.

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 of users, it is necessary to design a sofa linkage support device which has stable structure, good movement stability and stable speed and angle in the movement process.

SUMMERY OF THE UTILITY MODEL

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

In order to achieve the above object, the utility model provides a sofa linkage support device, which comprises a base, a driving mechanism, a sliding mechanism, a first linkage rod, a second linkage rod and two extending supports arranged on the base;

the sliding mechanism comprises a sliding rail and a sliding part, one end of the sliding rail is connected with the first linkage rod, the other end of the sliding rail is suspended, the sliding part is installed on the sliding rail and can slide along the sliding rail, two ends of the first linkage rod are respectively connected with the two stretching mechanisms, two ends of the second linkage rod are respectively connected with the two stretching mechanisms, and the second linkage rod is connected with the sliding rail through the sliding part;

the driving mechanism comprises a driving motor and a lead screw, the lead screw is arranged inside the slide rail, the driving motor is used for driving the lead screw to rotate, the lead screw is used for driving the sliding piece to reciprocate along the slide rail, and the sliding piece drives the two extending supports to extend or retract through the first linkage rod and the second linkage rod.

Furthermore, two extend the support and set up for bilateral symmetry, each extend the support including the back mechanism, bedplate coordinated mechanism and the shank that connect gradually and extend the mechanism.

Further, the base is two bar chassis of parallel arrangement, bedplate link gear through first support piece and second support piece with the bar chassis rotates to be connected.

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.

Further, still be provided with first locating part, second locating part and third locating part on the bedplate link gear, first locating part is fixed on the second seat frame support, the second spacer pin is fixed on the third seat frame support, the third locating part is fixed on the first seat frame support, works as when the extension support contracts to extreme position, first locating part with first connecting rod is inconsistent, the second locating part with second support piece is inconsistent, the third locating part with L shape seat frame mounting panel and third connecting rod are inconsistent.

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.

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 linkage device is further 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 linkage device is also 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.

Further, the driving motor is rotatably connected with the first linkage rod through a first rotating shaft, and the first rotating shaft is a bolt or a rotating bolt.

Furthermore, the sliding part is rotatably connected with the second linkage rod through a second rotating shaft, and the second 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 be provided with slide mechanism and actuating mechanism between the frame of two extensions, wherein actuating mechanism control slider drives first trace and the motion of second trace to make two extensions support extend or shrink, wherein the driving method simple structure that driving motor and lead screw slide rail combine, the accuracy is high, noise reduction, practice thrift the cost, the precision control of being convenient for.

(2) The utility model discloses driving motor's one end is passed through first pivot and is connected with first linkage rod rotation, and first linkage rod extends the mechanism with the shank and is connected, and driving motor is along with first linkage rod translation motion forward in the extension support motion, and whole actuating mechanism's focus is at the front end of sofa seat for the extension and the shrink of shank extension mechanism are more freely and steady when the people sits on the sofa, avoid producing the condition of rocking.

(3) 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.

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 linkage support device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a sofa linkage device provided in the embodiment of the present invention, in which a part of the structure is removed for clarity of description;

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

fig. 4 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-base, 11-bar chassis, 2-sliding mechanism, 21-sliding rail, 22-first linkage rod, 23-second linkage rod, 24-sliding piece, 221-first rotating shaft, 231-second rotating shaft, 3-extending bracket, 31-backrest mechanism, 32-seat plate linkage mechanism, 33-leg extending mechanism, 331-first extending piece, 332-second extending piece, 34-seat frame protecting plate, 321-first supporting piece, 322-second supporting piece, 323-L-shaped seat frame installing plate, 324-first connecting rod, 325-second connecting rod, 326-third connecting rod, 327-first seat frame bracket, 328-second seat frame bracket, 329-third seat frame bracket, 4-balancing rod, 5-torsion bar, 6-driving mechanism, 61-driving motor, 62-lead screw, 7-first limiting piece, 8-second limiting piece, and 9-third limiting piece.

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. 1-4, an embodiment of the present invention provides a sofa linkage support device, which includes a base 1, a driving mechanism 6, a sliding mechanism 2, a first linkage rod 22, a second linkage rod 23, and two extending supports 3 disposed on the base 1; the sliding mechanism 2 comprises a sliding rail 21 and a sliding part 24, one end of the sliding rail 21 is connected with the first linkage rod 22, the other end of the sliding rail 21 is suspended, the sliding part 24 is mounted on the sliding rail 21 and can slide along the sliding rail 21, two ends of the first linkage rod 22 are respectively connected with the two extension mechanisms, two ends of the second linkage rod 23 are respectively connected with the two extension mechanisms, and the second linkage rod 23 is connected with the sliding rail 21 through the sliding part 24; the driving mechanism 6 includes a driving motor 61 and a lead screw 62, the lead screw 62 is disposed inside the slide rail 21, the driving motor 61 is configured to drive the lead screw 62 to rotate, the lead screw 62 is configured to drive the sliding member 24 to reciprocate along the slide rail 21, and the sliding member 24 drives the two extending brackets 3 to extend or retract through the first linkage rod 22 and the second linkage rod 23.

Specifically, both ends of the first linkage rod 22 are rotatably connected to the two first extending members 331 at the left and right sides thereof, respectively. Two ends of the second linking rod 23 are respectively rotatably connected to the two first linking rods 324 on the left and right sides thereof. The first linkage rod 22 is located at the front end of the seat plate linkage mechanism 32 and connected with the leg stretching mechanism, the second linkage rod 23 is located in the middle of the seat plate linkage mechanism 32, and the first linkage rod 22 and the second linkage rod 23 are arranged in parallel. In some embodiments, the first linkage 22 and the second linkage 23 can move simultaneously to extend or retract the leg extension mechanism 33 and the seat plate linkage 32. In other embodiments, the first linkage 22 and the second linkage 23 can also move independently to drive the leg extension mechanism 33 and the seat plate linkage 32 to extend or retract, respectively. The cross section of the first linkage rod 22 and the second linkage rod 23 is circular, rectangular or L-shaped.

Specifically, the driving motor 61 is rotatably connected to the first linkage rod 22 through a first rotating shaft 221, and the first rotating shaft 221 is a bolt or a rotating bolt. The sliding member 24 is rotatably connected to the second linkage 23 through a second rotating shaft 231, and the second rotating shaft 221 is a pin or a rotating bolt. In some embodiments, the slider 24 is a slider that cooperates with a slide and a lead screw.

Specifically, the two extension brackets 3 are arranged symmetrically, and each extension bracket 3 includes a backrest mechanism 31, a seat plate linkage mechanism 32 and a leg extension mechanism 33 connected in sequence.

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 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 seat plate linkage mechanism 32 is further provided with a first limiting member 7, a second limiting member 8 and a third limiting member 9, the first limiting member 7 is fixed on the second seat frame bracket 328, the second limiting member 8 is fixed on the third seat frame bracket 329, the third limiting member 9 is fixed on the first seat frame bracket 327, when the extension bracket 3 is retracted to the limit position, the first limiting member 7 abuts against the first connecting rod 324, the second limiting member 8 abuts against the second supporting member 322, and the third limiting member 9 abuts against the L-shaped seat frame mounting plate 323 and the third connecting rod 326. The first limiting member 7, the second limiting member 8, and the third limiting member 9 are used for limiting the adjustment range of the backrest mechanism 31 and the leg extension mechanism 33 by abutting against the positions of other connecting members during the extension or contraction process of the extension bracket. In some embodiments, the stop member may be a stop pin or a stop sleeve.

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 leg extension mechanism 33 is disposed at a front end of the seat plate linkage mechanism 32, and the leg extension mechanism 33 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 22, and the second stretching part 332 is rotatably connected with the L-shaped seat frame mounting plate 323.

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

Specifically, the sofa linkage device is further provided with at least one torsion bar 5, and two ends of the torsion bar 5 are respectively fixed on the two first supporting members 321. In some embodiments, the torsion bar 5 may also be a round tube, a square tube or a rod or a plate with other shapes, which has the function of preventing the two side extension brackets 3 from twisting and unbalanced forces during extension or contraction.

The motion principle of this embodiment is that the driving motor 61 drives the lead screw 62 to rotate, so as to drive the sliding member 24 to reciprocate along the sliding rail 21, so as to drive the second linkage rod 23 connected to the sliding member 24 and the first linkage rod 22 connected to one end of the sliding rail 21 to generate rotation and translation motions, and finally drive the extension brackets 3 at both sides to extend and retract.

The utility model discloses the transform of three kinds of gestures of sofa aggregate unit. In the sitting posture, the extending bracket 3 is retracted to the limit, the backrest mechanism 31 and the leg extending mechanism 33 are both folded in the middle seat plate linkage mechanism 32, and the first linkage rod 22 and the second linkage rod 23 are closest to each other. As shown in fig. 3, in the leisure posture, at this time, the angle of the backrest mechanism 31 when keeping the sitting posture is substantially unchanged, the leg stretching mechanism 33 is unfolded forward until the leg rest part is parallel to the ground, the lower sliding part 24 is driven by the driving motor to drive the second linkage rod 23 to translate forward, and the first linkage rod 22 rotates by a certain angle and translates forward. As shown in fig. 4, in the lying posture, the seat board linkage mechanism 32 drives the leg stretching mechanism 33 to continue to translate forward based on the leisure posture, and simultaneously the backrest mechanism 31 tilts backward, at this time, the distance between the first linkage rod 22 and the second linkage rod 23 is farthest.

The utility model discloses be provided with slide mechanism and actuating mechanism between the frame of two extensions, wherein actuating mechanism control slider drives first trace and the motion of second trace to make two extensions support extend or shrink, wherein the driving method simple structure that driving motor and lead screw slide rail combine, the accuracy is high, noise reduction, practice thrift the cost, the precision control of being convenient for. The utility model discloses driving motor's one end is passed through first pivot and is connected with first linkage rod rotation, and first linkage rod extends the mechanism with the shank and is connected, and driving motor is along with first linkage rod translation motion forward in the extension support motion, and whole actuating mechanism's focus is at the front end of sofa seat for the extension and the shrink of shank extension mechanism are more freely and steady when the people sits on the sofa, avoid producing the condition of rocking. 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.

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

1. A sofa linkage support device is characterized by comprising a base (1), a driving mechanism (6), a sliding mechanism (2), a first linkage rod (22), a second linkage rod (23) and two extension supports (3) arranged on the base (1);

the sliding mechanism (2) comprises a sliding rail (21) and a sliding part (24), one end of the sliding rail (21) is connected with the first linkage rod (22), the other end of the sliding rail (21) is suspended, the sliding part (24) is installed on the sliding rail (21) and can slide along the sliding rail (21), two ends of the first linkage rod (22) are respectively connected with the extending support (3), two ends of the second linkage rod (23) are respectively connected with the extending support (3), and the second linkage rod (23) is connected with the sliding rail (21) through the sliding part (24);

the driving mechanism (6) comprises a driving motor (61) and a lead screw (62), the lead screw (62) is arranged inside the sliding rail (21), the driving motor (61) is used for driving the lead screw (62) to rotate, the lead screw (62) is used for driving the sliding piece (24) to move along the sliding rail (21) in a reciprocating mode, and the sliding piece (24) is driven to extend or retract the extending support (3) through the first linkage rod (22) and the second linkage rod (23).

2. A sofa frame device according to claim 1, wherein two stretching frames (3) are arranged in bilateral symmetry, each stretching frame (3) comprises a backrest mechanism (31), a seat board linkage mechanism (32) and a leg stretching mechanism (33) connected in sequence.

3. A sofa frame device according to claim 2, wherein the base (1) is two bar-shaped bottom frames (11) arranged in parallel, and the seat plate linkage mechanism (32) is rotatably connected with the bar-shaped bottom frames (11) through a first supporting piece (321) and a second supporting piece (322).

4. The sofa linkage bracket device according to claim 3, wherein the seat pan 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 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 link (325) is connected to the first support (321), the other end of the second connecting rod (325) is connected with a 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).

5. A sofa frame assembly according to claim 4, wherein the backrest mechanism (31) is pivotally connected to the seat plate linkage mechanism (32) via the third frame bracket (329) and the first link (324).

6. The sofa linkage frame device according to claim 4, wherein the seat plate linkage mechanism (32) further comprises a first limiting member (7), a second limiting member (8) and a third limiting member (9), the first limiting member (7) is fixed on the second seat frame support (328), the second limiting member (8) is fixed on the third seat frame support (329), the third limiting member (9) is fixed on the first seat frame support (327), when the extension support (3) is contracted to the limiting position, the first limiting member (7) abuts against the first connecting rod (324), the second limiting member (8) abuts against the second supporting member (322), and the third limiting member (9) abuts against the L-shaped seat frame mounting plate (323) and the third connecting rod (326).

7. The sofa linkage bracket assembly according to claim 2, wherein the leg extension mechanism (33) is disposed at a front end of the seat plate linkage mechanism (32), the leg extension mechanism (33) being pivotally connected to the L-shaped seat frame mounting plate (323).

8. The sofa linkage frame device according to claim 1, wherein the two ends of the first linkage rod (22) are rotatably connected to the two first extending members (331), respectively.

9. The sofa linkage bracket device according to claim 1, wherein two ends of the second linkage rod (23) are respectively connected with the two first connecting rods (324) in a rotating manner.

10. The sofa linkage bracket device according to claim 4, wherein the L-shaped seat frame mounting plate (323) is further provided with a seat frame protection plate (34), and the seat frame protection plate (34) is fixed at the bent position of the L-shaped seat frame mounting plate (323).

11. The sofa linkage bracket device according to claim 3, wherein the sofa linkage device is further provided with at least one balance bar (4), and both ends of the balance bar (4) are respectively fixed on the two second supporting pieces (322).

12. The sofa linkage frame device according to claim 3, wherein at least one torsion bar (5) is further provided on the sofa linkage, and both ends of the torsion bar (5) are fixed on the two first supporting members (321), respectively.

13. The sofa linkage bracket device according to claim 1, wherein the cross-section of the first linkage rod (22) and the second linkage rod (23) is circular, rectangular or L-shaped.

14. The sofa linkage bracket device according to claim 1, wherein the driving motor (61) is rotatably connected to the first linkage rod (22) through a first rotating shaft (221), and the first rotating shaft (221) is a bolt or a rotating bolt.

15. The sofa linkage bracket device according to claim 1, wherein the sliding member (24) is rotatably connected to the second linkage rod (23) through a second rotating shaft (231), and the second rotating shaft (231) is a bolt or a rotating bolt.