Sofa and sofa iron stand structure thereof

Abstract

The utility model discloses a sofa and a sofa iron stand structure thereof. The sofa iron stand structure comprises an iron stand fixing frame, a seat frame and a backrest frame arranged on the seat frame, the device further comprises a foot support assembly. The left side and the right side of the iron stand fixing frame are each provided with a foot support assembly, a second connecting rod is arranged between the two foot support assemblies, and the two ends of the second connecting rod are fixed to the two foot support assemblies respectively. The foot supporting assembly comprises a foot supporting piece, a first supporting piece and a second supporting piece, the foot supporting piece is used for directly supporting the feet of a user, and the first supporting piece and the second supporting piece are used for jointly supporting the foot supporting piece; the foot support sheet is strip-shaped; one end of the first supporting piece is hinged to one end of the foot supporting piece, and the other end of the first supporting piece is in transmission connection with the second connecting rod. One end of the second supporting piece is hinged to the middle of the foot supporting piece, and the other end of the second supporting piece is in transmission connection with the seat frame. The foot support assembly can be simplified, and the installation and maintenance difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sofa technical field especially relates to a sofa and sofa iron frame structure thereof. BACKGROUND

[0002] Sofa is a common household furniture, in the existing functional sofa, can through adjusting the position state of the functional sofa's cushion, backrest pad and footrest, satisfy the user's use demand to sofa different posture. In the current functional iron frame, usually utilize four connecting rod mechanism to realize the dumping of backrest pad, specifically through changing the length of the driving rod and passive rod in four connecting rod mechanism, make it become double rocker mechanism or crank rocker mechanism, drive backrest pad to realize a certain angle dumping by means of the angle change between each connecting rod. For example, the existing patent 202410503528.4 discloses a functional iron frame structure and functional sofa, its functional iron frame structure includes iron frame fixed plate, seat frame, backrest frame, driving part, foot support assembly and linkage assembly etc., wherein the foot support part at the head of foot support assembly adopts two support sheets to support one end of a triangular support sheet, the other end of the triangular support sheet is fixedly connected to the structure formed by two hingedly connected support sheets, because the structure is relatively complex, the difficulty and cost of installation and maintenance are increased. SUMMARY

[0003] The utility model solves the technical problem that there is, provide a sofa and sofa iron frame structure thereof, can simplify foot support assembly, reduce installation and maintenance cost.

[0004] In order to solve the above technical problem, the utility model discloses a sofa iron frame structure in a first aspect, including iron frame fixed frame, seat frame and the backrest frame installed on the seat frame, the iron frame fixed frame is composed of left and right two iron frame fixed plates and front and rear two first connecting rods, the seat frame can be forwardly stretched or retracted to the movement relative to the iron frame fixed frame, still include foot support assembly,

[0005] The left and right sides of the iron frame fixed frame are each equipped with a foot support assembly, and a second connecting rod is provided between the two foot support assemblies, and the two ends of the second connecting rod are fixed on the two foot support assemblies, respectively.

[0006] The foot support assembly includes a foot support sheet, a first support sheet and a second support sheet, the foot support sheet is used for directly supporting the feet of a user, and the first support sheet and the second support sheet are used for jointly supporting the foot support sheet.

[0007] The foot support sheet is in the shape of a long strip, one end of the first support sheet is hingedly connected to one end of the foot support sheet, and the other end of the first support sheet is in transmission connection with the second connecting rod, one end of the second support sheet is hingedly connected to the middle part of the foot support sheet, and the other end of the second support sheet is in transmission connection with the seat frame.

[0008] As an optional implementation, the foot support assembly further comprises a third support piece, a fourth support piece, a fifth support piece, a sixth support piece, a first fixing member;

[0009] The first fixing member is fixed to the seat frame;

[0010] One end of the fifth support piece is hingedly connected to one end of the first fixing member, and the other end of the fifth support piece is hingedly connected to the second end of the first support piece;

[0011] One end of the sixth support piece is hingedly connected to the other end of the first fixing member, the other end of the sixth support piece is hingedly connected to one end of the fourth support piece, the other end of the fourth support piece is hingedly connected to one end of the third support piece, and the other end of the third support piece is hingedly connected to the second end of the second support piece;

[0012] The middle part of the first support piece is hingedly connected to the middle part of the third support piece, and the middle part of the fourth support piece is hingedly connected to a position on the fifth support piece close to the first support piece;

[0013] One end of the second connecting rod is fixed with a second fixing member, and the second fixing member is fixedly connected to a position on the fifth support piece close to the first fixing member.

[0014] As another optional implementation, a driving member is further included;

[0015] The driving member comprises an electric sliding rail and a lifting rod; the electric sliding rail comprises a motor, a transmission structure, a guide rail, and a third sliding block in sliding connection with the guide rail, and the motor drives the third sliding block to move on the guide rail through the transmission structure; the guide rail of the electric sliding rail is horizontally oriented;

[0016] One end of the lifting rod is hingedly connected to the middle part of the second connecting rod, and the other end of the lifting rod is hingedly connected to the third sliding block of the electric sliding rail.

[0017] As another optional implementation, a support stand, an inclined guide rail with a first sliding block, and a horizontal guide rail with a second sliding block are further included; the seat frame is a rectangular frame structure;

[0018] The inclined guide rail and the horizontal guide rail are installed on the inner side of each of the two iron stand fixing plates, the inclined guide rail is farther away from the backrest frame than the horizontal guide rail, and one end of the inclined guide rail farther away from the horizontal guide rail is higher than the other end closer to the horizontal guide rail;

[0019] The left and right sides of the iron stand fixing frame are respectively provided with a support vertical plate, wherein one end of the bottom of the support vertical plate is hingedly connected with the first sliding block on the same side of the inclined guide rail, the other end of the bottom of the support vertical plate is hingedly connected with the second sliding block on the same side of the horizontal guide rail, and the top of the support vertical plate is fixedly connected with the bottom of the frame strip of the seat frame on the same side.

[0020] As a further optional embodiment, the lifting rod is provided with an upwardly bent bending portion at one end close to the second connecting rod.

[0021] As a further optional embodiment, the number of the lifting rods is two, one end of each of the two lifting rods is hingedly connected with the two sides of the third sliding block, and the other end of the two lifting rods is connected with the third connecting rod.

[0022] The middle portion of the second connecting rod is provided with a hinge element hingedly connected with the third connecting rod.

[0023] As a further optional embodiment, the support vertical plate is in a C shape with the opening downward.

[0024] As a further optional embodiment, the upper surface of the seat frame is provided with a plurality of hooks.

[0025] As a further optional embodiment, an elastic member is further included, one end of the elastic member is fixed on the first connecting rod, and the other end of the elastic member is fixed on the support vertical plate.

[0026] The second aspect of the utility model discloses a sofa, which comprises the sofa iron stand structure of the first aspect of the utility model.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] The foot supporting piece is designed in a strip shape, and only two supporting pieces are used for supporting, so that the foot supporting assembly can be obviously simplified, and the difficulty and cost of installation and maintenance are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the drawings for the ordinary skilled in the art without any creative labor.

[0030] Fig. 1 is a structure schematic view of the sofa iron stand structure of the utility model embodiment after the seat frame is stretched out;

[0031] Fig. 2is another structure schematic view of the sofa iron frame structure after the seat frame is stretched according to the embodiment of the utility model;

[0032] Fig. 3 is structure schematic view of the sofa iron frame structure after the seat frame is retracted according to the embodiment of the utility model;

[0033] Fig. 4 is another structure schematic view of the sofa iron frame structure after the seat frame is retracted according to the embodiment of the utility model;

[0034] Fig. 5 is structure schematic view of the support vertical plate of the sofa iron frame structure according to the embodiment of the utility model;

[0035] Fig. 6 is partial structure schematic view of the iron frame fixed frame of the sofa iron frame structure according to the embodiment of the utility model. DETAILED DESCRIPTION

[0036] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are within the protection scope of the utility model.

[0037] Embodiment one

[0038] Referring to Figs. 1-6 The utility model embodiment discloses a sofa iron frame structure, including iron frame fixed frame 1, seat frame 2 and install on the seat frame 2 backrest frame 3, the iron frame fixed frame 1 is by left and right two iron frame fixed plate 11 and front and back two first connecting rod 12 is formed, the seat frame 2 can be relative the iron frame fixed frame 1 do forward stretch or retract movement to back, still include foot support subassembly 7,

[0039] The left and right sides of the iron frame fixed frame 1 are each equipped with a foot support subassembly 7, and a second connecting rod 70 is arranged between the two foot support subassemblies 7, and the two ends of the second connecting rod 70 are fixed on the two foot support subassemblies 7, respectively.

[0040] The foot support subassembly 7 includes a foot support piece 73, a first support piece 71 and a second support piece 72, the foot support piece 73 is used for directly supporting the feet of a user, and the first support piece 71 and the second support piece 72 are used for jointly supporting the foot support piece 73.

[0041] The foot supporting piece 73 is long strip-shaped; the first end of the first supporting piece 71 is hinged to one end of the foot supporting piece 73, and the second end of the first supporting piece 71 is drivingly connected to the second connecting rod 70, that is, the first supporting piece 71 is lifted outward at the same time when the second connecting rod 70 is lifted outward by the lifting rod 82; the first end of the second supporting piece 72 is hinged to the middle part of the foot supporting piece 73, and the second end of the second supporting piece 72 is drivingly connected to the seat frame 2, and the second supporting piece 72 can be lifted outward synchronously after the seat frame 2 is lifted outward.

[0042] The foot supporting piece 73 is designed as long strip-shaped in the embodiment of the utility model, and only two supporting pieces are used for supporting, so that the foot supporting assembly can be obviously simplified, and the difficulty and cost of installation and maintenance are reduced.

[0043] In an alternative embodiment, the foot supporting assembly 7 further comprises a third supporting piece 74, a fourth supporting piece 75, a fifth supporting piece 76, a sixth supporting piece 77, and a first fixing member 78.

[0044] The first fixing member 78 is fixed to the seat frame 2.

[0045] One end of the fifth supporting piece 76 is hinged to one end of the first fixing member 78, and the other end of the fifth supporting piece 76 is hinged to the second end of the first supporting piece 71.

[0046] One end of the sixth supporting piece 77 is hinged to the other end of the first fixing member 78, the other end of the sixth supporting piece 77 is hinged to one end of the fourth supporting piece 75, the other end of the fourth supporting piece 75 is hinged to one end of the third supporting piece 74, and the other end of the third supporting piece 74 is hinged to the second end of the second supporting piece 72.

[0047] The middle part of the first supporting piece 71 is hinged to the middle part of the third supporting piece 74, and the middle part of the fourth supporting piece 75 is hinged to the fifth supporting piece 76 close to the first supporting piece 71.

[0048] One end of the second connecting rod 70 is fixed with a second fixing member 702, and the second fixing member 702 is fixedly connected to the fifth supporting piece 76 close to the first fixing member 78.

[0049] In the embodiment, the length of the first supporting piece 71 is greater than that of the second supporting piece 72.

[0050] In still another alternative embodiment, a driving member is further included.

[0051] The driving member comprises an electric slide rail and a lifting rod 82; the electric slide rail comprises a motor 811, a transmission structure, a guide rail 812 and a third sliding block 813 in sliding connection with the guide rail 812, the motor 811 drives the third sliding block 813 to move on the guide rail 812 through the transmission structure; the guide rail 812 of the electric slide rail is horizontally oriented;

[0052] One end of the lifting rod 82 is hingedly connected to the middle part of the second connecting rod 70, and the other end is hingedly connected to the third sliding block 813 of the electric slide rail 81.

[0053] The electric slide rail is a prior art, and the transmission structure has various implementation manners, such as a ball screw structure, which will not be described in detail. In the embodiment, the design of the electric slide rail + lifting rod 82 can make the lifting of the foot support assembly 7 stable and high enough.

[0054] In another optional embodiment, a support vertical plate 4, an inclined guide rail 5 with a first sliding block 51 and a horizontal guide rail 6 with a second sliding block 61 are further included; the seat frame 2 is a rectangular frame structure;

[0055] The inclined guide rail 5 and the horizontal guide rail 6 are mounted on the inner side of the two iron stand fixing plates 11, the inclined guide rail 5 is farther away from the backrest frame 3 than the horizontal guide rail 6, and the end of the inclined guide rail 5 away from the horizontal guide rail 6 is higher than the other end close to the horizontal guide rail 6.

[0056] The left and right sides of the iron stand fixing frame 1 are each provided with one support vertical plate 4, one end of the bottom of the support vertical plate 4 is hingedly connected to the first sliding block 51 on the same side of the inclined guide rail 5, the other end of the bottom of the support vertical plate 4 is hingedly connected to the second sliding block 61 on the same side of the horizontal guide rail 6, and the top of the support vertical plate 4 is fixedly connected to the bottom of the frame strip of the seat frame 2 on the same side.

[0057] In the embodiment, the inclined guide rail 5 and the horizontal guide rail 6 are arranged in front and back respectively, the front end bottom of the support vertical plate 4 of the seat frame 2 is hingedly connected to the sliding block 51 of the inclined guide rail 5, and the rear end bottom is hingedly connected to the sliding block 61 of the horizontal guide rail 6, so that the rear end bottom of the support vertical plate 4 serves as a stable bottom support point, and the front end bottom serves as a high support point when being lifted, so that the seat frame 2 can be stably lifted; the lifting angle of the seat frame 2 is directly related to the inclined angle of the inclined guide rail 5, and a higher angle can be achieved under the condition of ensuring stability compared with a push rod motor solution.

[0058] In another optional embodiment, the lifting rod 82 is provided with an upwardly bent bending portion at one end close to the second connecting rod 70.

[0059] In still another optional embodiment, the number of the lifting rods 82 is two, one end of the two lifting rods 82 is respectively hinged to the two sides of the third sliding block 813, and the other end of the two lifting rods 82 is connected with the third connecting rod 83.

[0060] The middle part of the second connecting rod 70 is provided with a hinge 701, and the hinge 701 is hinged to the third connecting rod 83.

[0061] In still another optional embodiment, the support vertical plate 4 is C-shaped, and the opening of the support vertical plate 4 faces downward.

[0062] In still another optional embodiment, the upper surface of the seat frame 2 is provided with a plurality of hooks 21.

[0063] In still another optional embodiment, the elastic member 10 is further included, one end of the elastic member 10 is fixed on the first connecting rod 12, and the other end of the elastic member 10 is fixed on the support vertical plate 4.

[0064] Embodiment two

[0065] The embodiment of the utility model discloses a sofa, including the sofa iron frame structure as the embodiment one.

[0066] The embodiment of the utility model discloses the only for the preferred embodiment of the utility model has been, only for the technical scheme of the utility model of the description, and is not limited to it, although the utility model has been explained in detail with reference to the preceding embodiment, the ordinary skill of the art should understand, still can modify the technical scheme recorded in the preceding each item embodiment, or equivalent replacement is carried out to part of technical features, and these modifications or replacement, do not make the essence of corresponding technical scheme deviate from the spirit and scope of the utility model each item embodiment technical scheme.

Claims

1. A sofa frame structure, comprising a frame fixing frame, a seat frame, and a backrest frame mounted on the seat frame; the frame fixing frame is composed of two left and right frame fixing plates and two front and rear first connecting rods; the seat frame is capable of extending forward or retracting backward relative to the frame fixing frame; Its features are, It also includes footrest components; Each of the iron frame fixing frames is provided with a foot support assembly on both the left and right sides, and a second connecting rod is provided between the two foot support assemblies. The two ends of the second connecting rod are respectively fixed to the two foot support assemblies. The footrest assembly includes a footrest plate, a first support plate, and a second support plate. The footrest plate is used to directly support the user's foot, and the first support plate and the second support plate are used to jointly support the footrest plate. The footrest is long and narrow; One end of the first support plate is hinged to one end of the footrest plate, and the other end of the first support plate is driven to the second connecting rod; one end of the second support plate is hinged to the middle of the footrest plate, and the other end of the second support plate is driven to the seat frame. It also includes a support plate, an inclined guide rail with a first slider, and a horizontal guide rail with a second slider; the seat frame is a rectangular frame structure; The inclined guide rail and the horizontal guide rail are installed on the inner sides of both iron frame fixing plates. The inclined guide rail is farther away from the backrest than the horizontal guide rail. The end of the inclined guide rail away from the horizontal guide rail is higher than the end closer to the horizontal guide rail. The iron frame fixing frame is provided with a support plate on both the left and right sides. One end of the bottom of the support plate is hinged to the first slider on the inclined guide rail on the same side, and the other end of the bottom of the support plate is hinged to the second slider on the horizontal guide rail on the same side. The top of the support plate is fixedly connected to the bottom of the frame strip of the seat frame on the same side.

2. The sofa frame structure according to claim 1, characterized in that, The footrest assembly also includes a third support plate, a fourth support plate, a fifth support plate, a sixth support plate, and a first fixing member; The first fastener is fixed to the seat frame; One end of the fifth support piece is hinged to one end of the first fixing member, and the other end of the fifth support piece is hinged to the second end of the first support piece; One end of the sixth support piece is hinged to the other end of the first fixing member, the other end of the sixth support piece is hinged to one end of the fourth support piece, the other end of the fourth support piece is hinged to one end of the third support piece, and the other end of the third support piece is hinged to the second end of the second support piece. The middle part of the first support piece is hinged to the middle part of the third support piece, and the middle part of the fourth support piece is hinged to the fifth support piece at a position close to the first support piece. One end of the second connecting rod is fixed with a second fixing member, which is fixedly connected to the fifth support plate at a position close to the first fixing member.

3. The sofa frame structure according to claim 1, characterized in that, It also includes driving components; The driving component includes an electric slide rail and a lifting rod; the electric slide rail includes a motor, a transmission structure, a guide rail, and a third slider slidably connected to the guide rail, and the motor drives the third slider to move on the guide rail through the transmission structure; the guide rail of the electric slide rail is horizontal. One end of the lifting rod is hinged to the middle of the second connecting rod, and the other end is hinged to the third slider of the electric slide rail.

4. The sofa frame structure according to claim 3, characterized in that, The lifting rod has an upwardly bent portion at one end near the second connecting rod.

5. The sofa frame structure according to claim 4, characterized in that, The number of lifting rods is 2, one end of each of the two lifting rods is hinged to both sides of the third slider, and the other ends of the two lifting rods are connected by a third connecting rod; The second connecting rod has a hinge in the middle, which is hinged to the third connecting rod.

6. The sofa frame structure according to claim 1, characterized in that, The supporting plate is C-shaped with its opening facing downwards.

7. The sofa frame structure according to claim 1, characterized in that, The upper surface of the seat frame is provided with multiple hooks.

8. The sofa frame structure according to claim 1, characterized in that, It also includes an elastic element, one end of which is fixed to the first connecting rod and the other end of which is fixed to the support plate.

9. A sofa, characterized in that, Includes the sofa frame structure as described in any one of claims 1 to 8.

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