CN109924748A - A kind of sofa bracket device - Google Patents

Abstract

The invention discloses a kind of sofa bracket devices, including pedestal, interlinked mechanism and two extendable brackets on the base arranged symmetrically, the interlinked mechanism includes the first interlocking lever and the second interlocking lever, the both ends of first interlocking lever are connect with two extendable brackets respectively, the both ends of second interlocking lever are connect with two extendable brackets respectively, the first connector is provided in the middle part of first interlocking lever, the second connector is provided in the middle part of second interlocking lever, first connector and second connector are connect with actuator, first connector and second connector for generating relative movement under the driving of the driving member, to drive two extendable bracket stretching, extensions or shrink.The advantages of being had using the present invention keeps sofa movement in posture transformation steady, and sound is smaller, avoids the occurrence of velocity jump, stuck, situations such as shaking.

Description

A sofa support device

technical field

The invention relates to the technical field of furniture manufacturing, in particular to a sofa support device.

Background technique

With the improvement of people's living standards, the requirements for the function and comfort of furniture products are also getting higher and higher. A multifunctional sofa or seat refers to furniture that can achieve a smooth transformation from sitting, leisure to lying, and meet various requirements such as sitting, leisure, sleep, massage, and rotation. The multifunctional sofa has greater advantages than the traditional sofa. The functional sofa makes our sitting posture beneficial to the body's blood circulation and protects our health at any time. In the lying position, the backrest moves backward, the human body lies on the sofa, the spine is completely relaxed, and the legs can reach a horizontal position to support the legs and relieve leg fatigue. The perfect close-fitting design allows people to relax and relieve when they are tired.

As the preferred sofa seat for leisure, if the design is unreasonable, it will not only fail to relax and relieve fatigue, but also lead to various diseases such as lumbar muscle strain and cumulative trauma disorders. In order to meet the user's functional requirements and use comfort, it is necessary to design a sofa stretching bracket device that can move the sofa smoothly during posture changes, with low sound, and avoid sudden changes in speed, stuck, shaking, etc.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and to propose a sofa support device.

In order to achieve the above purpose, the present invention provides a sofa support device, which includes a base, a linkage mechanism and two extension supports symmetrically arranged on the base, and the linkage mechanism includes a first linkage rod and a second linkage The two ends of the first link rod are respectively connected to the two stretch brackets, and the two ends of the second link rod are respectively connected to the two stretch brackets. The middle part is provided with a first connecting piece, the middle part of the second link rod is provided with a second connecting piece, the first connecting piece and the second connecting piece are connected with the driving piece, the first connecting piece and the The second connecting member is used to generate relative movement under the driving of the driving member, so as to drive the two extending brackets to expand or contract.

Further, each of the extension brackets includes a backrest mechanism, a seat plate linkage mechanism and a leg extension mechanism connected in sequence.

Further, the bases are two strip-shaped bases arranged in parallel.

Further, the seat plate linkage mechanism is rotatably connected with the bar-shaped chassis through a first support member and a second support member.

Further, the seat plate linkage mechanism includes an L-shaped seat frame mounting plate, a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is connected with the first seat frame bracket, and the The other end of the first connecting rod is connected with the third seat frame support, one end of the second connecting rod is connected with the first support member, and the other end of the second connecting rod is connected with the second seat frame support, so One end of the third connecting rod is connected with the second seat frame support, the other end of the third connecting rod is connected with the leg extension mechanism, the first seat frame support, the second seat frame support and the third seat frame support The frame supports are all arranged on the L-shaped seat frame mounting plate.

Further, the backrest mechanism is rotatably connected to the seat plate linkage mechanism through the third seat frame bracket and the first link.

Further, the leg extension 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.

Further, the two ends of the first linkage rod are respectively rotatably connected with the two first extension members.

Further, both ends of the second link rod are respectively connected in rotation with the two first link rods.

Further, the first connecting piece and the first linking rod are connected by welding, socketing, clipping or screwing, and the second linking piece and the second linking rod are welded, socketed, clipped connection or screw connection.

Further, the seat plate linkage mechanism is also provided with a first limit pin, a second limit pin and a third limit pin, the first limit pin is fixed on the second seat frame bracket, so The second limit pin is fixed on the third seat frame bracket, and the third limit pin is fixed on the first seat frame bracket.

Further, the L-shaped seat frame mounting plate is further provided with a seat frame protection plate, and the seat frame protection plate is fixed at the bending position of the L-shaped seat frame mounting plate.

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

Further, at least one anti-torsion bar is also provided on the sofa support device, and both ends of the torsion bar are respectively fixed on the two first support members.

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

Further, both the first interlocking rod and the second interlocking rod are connected to the driving member through a rotating shaft, and the rotating shaft is a bolt or a rotating bolt.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The present invention is connected to the driving member through a first connecting member and a second connecting member, the first connecting member and the second connecting member are respectively arranged in the middle of the first link rod and the second link rod, and the first link member The relative movement between the second connecting piece and the second connecting piece is driven by the driving piece, so as to drive the two extending brackets to expand or contract, so that the two extending brackets can be stressed more stably and the linkage structure is more streamlined.

(2) The first linkage rod of the present invention is arranged between the two seat plate linkage mechanisms, and the second linkage rod is arranged between the two leg extension mechanisms. The movement of the rod drives the movement of the seat plate linkage mechanism and the leg extension mechanism respectively, and also acts as a supporting and stabilizing device.

(3) The present invention has a simple structure and is convenient for mass production, manufacture and installation.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical manner in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

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

2 is a schematic structural diagram of a connection mode of an extension support provided by an embodiment of the present invention;

3 is a schematic structural diagram of a sitting posture state of an extension support provided by an embodiment of the present invention;

4 is a schematic structural diagram of a resting posture state of an extension support provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a lying posture state of an extension support provided by an embodiment of the present invention.

Among them, the reference numerals are: 1- base, 11-strip base, 2- linkage mechanism, 21-first linkage rod, 22-second linkage rod, 211-first connecting piece, 221-first linkage Two connecting pieces, 3-extension bracket, 31-backrest mechanism, 32-seat panel linkage mechanism, 33-leg extension mechanism, 331-first extension piece, 332-second extension piece, 34-seat frame protection plate, 321 - first support, 322 - second support, 323 - L-shaped seat frame mounting plate, 324 - first link, 325 - second link, 326 - third link, 327 - first seat frame bracket , 328-second seat frame bracket, 329-third seat frame bracket, 4-balance bar, 5-torsion bar, 6-first limit pin, 7-second limit pin, 8-third limit pin.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in 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. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings and the use state of the device , is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first", "second" and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second", "third" may expressly or implicitly include one or more of such features. Also, the terms "first," "second," "third," etc. are used to distinguish between similar objects and are not necessarily used to describe a particular order or precedence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.

Example

As shown in FIGS. 1-5 , an embodiment of the present invention provides a sofa support device, including a base 1 , a linkage mechanism 2 and two extension supports 3 symmetrically arranged on the base 1 , and the linkage mechanism 2 includes The first linkage rod 21 and the second linkage rod 22, the two ends of the first linkage rod 21 are respectively connected with the two extension brackets 3, and the two ends of the second linkage rod 22 are respectively connected with the two extension brackets 3. The extension brackets 3 are connected to each other, the middle part of the first link rod 21 is provided with a first connecting piece 211 , the middle part of the second link rod 22 is provided with a second connecting piece 221 , and the first connecting piece 211 and the second connecting member 221 are connected to the driving member, and the first connecting member 211 and the second connecting member 221 are used to generate relative movement under the driving of the driving member, so as to drive the two extending brackets 3 stretch or contract.

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

Specifically, the base 1 is two strip-shaped base frames 11 arranged in parallel, and the seat plate linkage mechanism 32 is rotatably connected to the strip-shaped base frames 11 through a first support member 321 and a second support member 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 the first seat The frame bracket 327 is connected, the other end of the first link 324 is connected to the third seat frame bracket 329, one end of the second link 325 is connected to the first support 321, and the second link 325 The other end of the third link 326 is connected to the second seat frame bracket 328, one end of the third link 326 is connected to the second seat frame bracket 328, and the other end of the third link 326 is connected to the leg extension mechanism 33, 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 , and the first limit pin 6 is fixed on the second seat The frame bracket 328 is used to interfere with the first link 324 during the expansion or contraction of the extension bracket, and the second limit pin 7 is fixed on the third seat frame bracket 329 for In the process of extending or retracting the extension bracket, the second support member 322 is in conflict, and the third limit pin 8 is fixed on the first seat frame bracket 327 for extending or retracting the extension bracket. During the retraction process, the L-shaped seat frame mounting plate 323 and the third link 326 are in conflict, so as to limit the range and angle of the extension bracket 3 during the retraction process.

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 its forward or backward tilting adjustment movement.

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

Specifically, the two ends of the first interlocking rod 21 are respectively rotatably connected with the two first extending pieces 331 on the left and right sides, and the two ends of the second interlocking rod 22 are respectively connected with the two The first link 324 is rotatably connected, and the first link rod 21 and the second link rod 22 are used for relative movement under the driving of the driving member, so as to drive the seat plate linkage mechanism 32 and the legs The stretching mechanism 33 stretches or contracts. In some embodiments, the first linkage rod 21 and the second linkage rod 22 can move simultaneously to drive the leg extension mechanism 33 and the seat plate linkage mechanism 32 to expand or contract. In other embodiments, the first linkage rod 21 and the second linkage rod 22 can also move independently, respectively driving the leg extension mechanism 33 and the seat plate linkage mechanism 32 to extend or contract.

Specifically, the cross sections of the first link rod 21 and the second link rod 22 are circular, rectangular or L-shaped. The first connecting member 211 and the second connecting member 221 are connected to the driving member through a rotating shaft, and the rotating shaft is a bolt or a rotating bolt. The first connecting piece (211) and the first linking rod (21) are welded, sleeved, snap-connected or screwed, and the second connecting piece (221) is connected with the second linking rod (21). 22) For welding, socket connection, snap connection or screw connection.

Specifically, 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 bend of the L-shaped seat frame mounting plate 323 . The seat frame protection plate 34 is used to protect and strengthen the strength of the L-shaped seat frame mounting plate and enhance the bearing capacity of the sofa. In practical applications, the seat frame protection plate 34 can be in the shape of a plate, a rod or an angle iron according to requirements.

Specifically, at least one balance bar 4 is also provided on the sofa stretching device, and both ends of the balance bar 4 are respectively fixed on the left and right second support members 322 . In some embodiments, the balance bar 4 can be designed as a round tube with radian, or a square tube or other shaped rod according to requirements. The balance bar 4 can enhance the stability of the sofa and ensure the left and right sides of the sofa. The force balance of the extension bracket.

Specifically, at least one anti-torsion bar 5 is also provided on the sofa stretching device, and both ends of the anti-torsion bar 5 are respectively fixed on the two left and right first support members 321 . In some embodiments, the torsion bar 5 can also be a round tube, square tube or other shaped bar with an arc, which has the function of preventing the torsion of the two-side extension bracket 3 during the process of extending or contracting and the two sides The effect of unbalanced force.

Specifically, the driving member is a driving mechanism such as a spring, a push rod motor or a slider motor, and different driving modes such as electric or manual can be adopted.

As shown in Figures 3-5, it is a schematic diagram of the sofa support device of the present invention in three states: sitting posture, leisure posture and lying posture. As shown in Figure 3, in the sitting posture state, the stretching bracket is in a retracted state, the backrest mechanism 31 and the legs are stretched The mechanism 33 is retracted toward the middle, and at this time, the distance between the first linking rod 21 and the second linking rod 22 is the closest. As shown in FIG. 4 , in the leisure posture, the angle of the backrest mechanism 31 when maintaining the sitting posture is basically unchanged, the leg extension mechanism 33 is unfolded forward, the first linkage rod 21 wants to translate forward, and the second linkage rod 22 rotates for a certain amount angle and pan forward. As shown in FIG. 5 , in the lying position, the seat plate linkage mechanism 32 drives the leg extension mechanism 33 to continue to translate forward, and the backrest mechanism 31 tilts backward. At this time, the first linkage rod 21 and the second The distance between the two linkage rods 22 is the farthest.

The present invention includes two stretching brackets 3, and a linkage mechanism 2 is arranged between the two stretching brackets 3, and the movement of the linkage mechanism 2 is driven by a driving member, so that the stretching brackets 3 are stretched or contracted. Compared with the traditional spring drive, the sudden change of speed can be avoided, the movement process can be made more stable by controlling the movement of the linkage mechanism 2, and the running sound can be reduced at the same time. In the present invention, the first linking rod 21 is arranged between the two seat plate linking mechanisms 32, and the second linking rod 22 is arranged between the two leg extension mechanisms 33. The movement of the linkage rod 22 drives the movement of the seat plate linkage mechanism 32 and the leg extension mechanism 33 respectively, and the first linkage rod and the second linkage rod also play the role of supporting and stabilizing devices.

It should be understood that the above-mentioned specific embodiments of the present invention are only used to illustrate or explain the principle of the present invention, but not to limit the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention.

Claims (16)

1. A sofa support device, characterized in that it comprises a base (1), a linkage mechanism (2) and two stretching supports (3) symmetrically arranged on the base (1), and the linkage mechanism ( 2) It includes a first link rod (21) and a second link rod (22), two ends of the first link rod (21) are respectively connected with the two stretch brackets (3), the first link rod (21) Both ends of the second link rod (22) are respectively connected with the two stretch brackets (3), the middle part of the first link rod (21) is provided with a first connecting piece (211), and the second link A second connecting piece (221) is arranged in the middle of the moving rod (22), the first connecting piece (211) and the second connecting piece (221) are connected with the driving piece, and the first connecting piece (211) The second connecting member (221) is used to generate relative movement under the driving of the driving member, so as to drive the two extending brackets (3) to expand or contract. 2 . The sofa support device according to claim 1 , wherein each of the stretch supports ( 3 ) comprises a backrest mechanism ( 31 ), a seat plate linkage mechanism ( 32 ) and a leg stretch mechanism connected in sequence. 3 . (33). 3 . The sofa support device according to claim 1 , wherein the base ( 1 ) is two strip-shaped base frames ( 11 ) arranged in parallel. 4 . 4. A sofa support device according to claim 2, characterized in that, the seat plate linkage mechanism (32) is connected to the strip bottom through a first support member (321) and a second support member (322) The frame (11) is rotatably connected. 5 . The sofa support device according to claim 2 , wherein the seat plate linkage mechanism ( 32 ) comprises an L-shaped seat frame mounting plate ( 323 ), a first link ( 324 ), a second link A rod (325) and a third connecting rod (326), one end of the first connecting rod (324) is connected with the first seat frame bracket (327), and the other end of the first connecting rod (324) is connected with the third connecting rod (324) The seat frame bracket (329) is connected, one end of the second link (325) is connected with the first support member (321), and the other end of the second link (325) is connected with the second seat frame bracket ( 328) connection, one end of the third link (326) is connected with the second seat frame bracket (328), and the other end of the third link (326) is connected with the leg extension mechanism (33), The first seat frame bracket (327), the second seat frame bracket (328) and the third seat frame bracket (329) are all arranged on the L-shaped seat frame mounting plate (323). 6. A sofa support device according to claim 2, characterized in that, the backrest mechanism (31) is connected to the The seat plate linkage mechanism (32) is rotatably connected. 7. A sofa support device according to claim 2, characterized in that, the leg extension mechanism (33) is arranged at the front end of the seat plate linkage mechanism (32), and is installed with the L-shaped seat frame The plate (323) is rotatably connected. 8 . The sofa support device according to claim 1 , wherein the two ends of the first linkage rod ( 21 ) are respectively rotatably connected with the two first extension members ( 331 ). 9 . 9 . The sofa support device according to claim 1 , wherein the two ends of the second link rod ( 22 ) are respectively rotatably connected with the two first link rods ( 324 ). 10 . 10 . The sofa support device according to claim 1 , wherein the first connecting member ( 211 ) and the first connecting rod ( 21 ) are connected by welding, socket connection, snap connection or screw connection. 11 . , the second connecting piece (221) and the second linking rod (22) are connected by welding, socket connection, snap connection or screw connection. 11. A sofa support device according to claim 5, characterized in that, the seat plate linkage mechanism (32) is further provided with a first limit pin (6), a second limit pin (7) and a The third limit pin (8), the first limit pin (6) is fixed on the second seat frame bracket (328), the second limit pin (7) is fixed on the third seat On the frame bracket (329), the third limit pin (8) is fixed on the first seat frame bracket (327). 12 . The sofa support device according to claim 5 , wherein a seat frame protection plate ( 34 ) is further provided on the L-shaped seat frame mounting plate ( 323 ), and the seat frame protection plate ( 34 ). ) is fixed at the bend of the L-shaped seat frame mounting plate (323). 13. A sofa support device according to claim 1, characterized in that, at least one balance bar (4) is further provided on the sofa support device, and both ends of the balance bar (4) are respectively fixed on two each of the second support members (322). 14. A sofa support device according to claim 1, characterized in that, at least one anti-torsion bar (5) is further provided on the sofa support device, and both ends of the torsion bar (5) are respectively fixed on the two first supports (321). 15. A sofa support device according to claim 1, characterized in that, the cross-sections of the first linkage rod (21) and the second linkage rod (22) are circular, rectangular or L shape. 16. The sofa support device according to claim 1, wherein the first connecting member (211) and the second connecting member (221) are connected to the driving member through a rotating shaft, and the rotating shaft is a latch or turn the bolt.