Multifunctional sofa iron stand

Abstract

The utility model relates to the technical field of sofa iron stands, and discloses a multifunctional sofa iron stand which comprises a main supporting rod, an electric push rod is installed on the lower surface of the middle of the main supporting rod through a bolt, and the telescopic end of the electric push rod is connected with a telescopic supporting rod through a rotary connecting shaft. The two ends of the telescopic supporting rod are connected with a first leg-leaning rotating arm through angle iron and a rotating shaft, and the other end of the first leg-leaning rotating arm is connected with a second leg-leaning rotating arm through a rotating shaft. The multifunctional sofa iron stand is provided with the leg leaning rotating arms, the linkage plate and the telescopic plate structure, so that the backrest connecting plate moves obliquely downwards when the sofa is unfolded, the sofa using the iron stand can be placed against a wall, the occupied space of the sofa during placement is reduced, and the seat wrapping fixing plate at a lower position is arranged, so that the sofa is convenient to use. The installation position of a sofa seat frame using the iron stand can be lower, the thickness of a soft bag of the sofa is increased, and the comfort when the sofa is used for sitting down is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sofa iron frame technical field, concretely is a kind of multifunctional sofa iron frame. BACKGROUND

[0002] Sofa iron frame is an important component inside sofa, mainly used to support the structure and shape of sofa, ensure the stability and durability of sofa. Sofa iron frame is usually made of metal material, with high strength and durability. The existing sofa iron frame cannot be zero wall, and needs to be placed away from the wall by a large distance, occupies more space, and the sofa seat frame is high, so that the soft package cannot be made more comfortable.

[0003] The sofa iron frame on the market cannot be zero wall in use, needs to be placed away from the wall by a large distance, occupies more space, and the sofa seat frame is high, so that the soft package cannot be made more comfortable. Therefore, we propose a kind of multifunctional sofa iron frame. UTILITY MODEL CONTENTS

[0004] The utility model is to provide a kind of multifunctional sofa iron frame, to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of multifunctional sofa iron frame, comprising:

[0006] Main support rod, the lower surface of the middle part of the main support rod is provided with electric push rod by bolt, the telescopic end of the electric push rod is connected with telescopic support rod by rotating connecting shaft, the both ends of the telescopic support rod are connected with the first leg rest arm of angle iron and pivot, the other end of the first leg rest arm is connected with the second leg rest arm of pivot, the other end of the second leg rest arm is connected with the leg support plate of end face structure trapezoidal, one side inner wall of the leg support plate is connected with the third leg rest arm of pivot, the other end of the third leg rest arm is connected with the rotating conical plate of pivot, the rotating conical plate and the one side outer wall of leg support plate are both vertically fixed with leg support plate, the middle part of the rotating conical plate is connected with flat plate by pivot, and the other end of flat plate is connected in the inner wall of one end of the leg support plate by pivot, the one end of the first leg rest arm away from the second leg rest arm is connected with linkage support plate by pivot.

[0007] Further, one side outer wall of the leg support plate is connected with the first connecting plate of pivot, the middle part of the first connecting plate is connected with the first leg rest arm by pivot, the other end of the first connecting plate is connected with the second connecting plate of pivot, the other end of the second connecting plate is connected with the third connecting plate of pivot, the middle part of the third connecting plate is connected with the first linkage plate of pivot, and the first linkage plate is connected in the inner side lower surface of the linkage support plate.

[0008] Further, the fourth connecting plate is connected with a sixth connecting plate through a rotating shaft at one end close to the linkage triangular plate, the fifth connecting plate is connected with a seventh connecting plate through a rotating shaft at the middle part, the other end of the sixth connecting plate and the seventh connecting plate is connected with an eighth connecting plate through a rotating shaft, and the other end of the eighth connecting plate is connected with the fifth connecting plate through a rotating shaft at one end away from the linkage triangular plate, the fifth connecting plate and the eighth connecting plate are connected with a staggered connecting plate through a rotating shaft, and the staggered connecting plate is connected with the middle inner surface of the main support plate through a rotating shaft.

[0009] Further, the fourth connecting plate is connected with a sixth connecting plate through a rotating shaft at one end close to the linkage triangular plate, the fifth connecting plate is connected with a seventh connecting plate through a rotating shaft at the middle part, the other end of the sixth connecting plate and the seventh connecting plate is connected with an eighth connecting plate through a rotating shaft, and the other end of the eighth connecting plate is connected with the fifth connecting plate through a rotating shaft at one end away from the linkage triangular plate, the fifth connecting plate and the eighth connecting plate are connected with a staggered connecting plate through a rotating shaft, and the staggered connecting plate is connected with the middle inner surface of the main support plate through a rotating shaft.

[0010] Further, the fourth connecting plate is connected with a sixth connecting plate through a rotating shaft at one end close to the linkage triangular plate, the fifth connecting plate is connected with a seventh connecting plate through a rotating shaft at the middle part, the other end of the sixth connecting plate and the seventh connecting plate is connected with an eighth connecting plate through a rotating shaft, and the other end of the eighth connecting plate is connected with the fifth connecting plate through a rotating shaft at one end away from the linkage triangular plate, the fifth connecting plate and the eighth connecting plate are connected with a staggered connecting plate through a rotating shaft, and the staggered connecting plate is connected with the middle inner surface of the main support plate through a rotating shaft.

[0011] Further, the fourth connecting plate is connected with a sixth connecting plate through a rotating shaft at one end close to the linkage triangular plate, the fifth connecting plate is connected with a seventh connecting plate through a rotating shaft at the middle part, the other end of the sixth connecting plate and the seventh connecting plate is connected with an eighth connecting plate through a rotating shaft, and the other end of the eighth connecting plate is connected with the fifth connecting plate through a rotating shaft at one end away from the linkage triangular plate, the fifth connecting plate and the eighth connecting plate are connected with a staggered connecting plate through a rotating shaft, and the staggered connecting plate is connected with the middle inner surface of the main support plate through a rotating shaft.

[0012] Further, the inner lower surface of the linkage support plate is fixed with a seat fixing plate, and the seat fixing plate and the linkage support plate are perpendicular to each other.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The multifunctional sofa iron frame is provided with a leg-rest rotating arm, a linkage plate and an expansion plate structure, so that the backrest connecting plate moves obliquely downward when the sofa is unfolded, the sofa using the iron frame can be placed against the wall, the occupied space when the sofa is placed is reduced, the seat fixing plate arranged at a lower position can make the sofa seat frame installation position lower, the sofa soft package thickness is increased, and the comfort when sitting is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a side view plane structure schematic diagram of the utility model;

[0016] Fig. 2 It is a unilateral contraction state three-dimensional structure schematic diagram of the utility model iron stand;

[0017] Fig. 3 It is a unilateral expansion state three-dimensional structure schematic diagram of the utility model iron stand.

[0018] In the figure: 1, main support rod; 2, electric push rod; 3, telescopic support rod; 4, first legrest swing arm; 5, linkage support plate; 6, second legrest swing arm; 7, leg support plate; 8, third legrest swing arm; 9, rotating conical plate; 10, flat expansion plate; 11, leg support plate; 12, first connecting plate; 13, second connecting plate; 14, third connecting plate; 15, first linkage plate; 16, fourth connecting plate; 17, linkage triangular plate; 18, arc-shaped swing shaft; 19, fifth connecting plate; 20, main support plate; 21, sixth connecting plate; 22, seventh connecting plate; 23, eighth connecting plate; 24, staggered connecting plate; 25, first telescopic plate; 26, backrest connecting plate; 27, second telescopic plate; 28, third telescopic plate; 29, fourth telescopic plate; 30, middle linkage rod; 31, linkage spring; 32, seat fixing plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0020] The utility model discloses an iron stand of multi-functional sofa through improvement, please refer to Figs. 1-3The utility model relates to a kind of foldable legs supporting device, including: main support 1, the lower surface of the middle part of main support 1 is equipped with electric push rod 2 by bolt, the telescopic end of electric push rod 2 is connected with telescopic support 3 by rotating connecting shaft, both ends of telescopic support 3 are connected with first leg-rest swing arm 4 by angle iron and pivot, the other end of first leg-rest swing arm 4 is connected with second leg-rest swing arm 6 by pivot, the other end of second leg-rest swing arm 6 is connected with leg supporting plate 7 of end face structure trapezoidal by pivot, one side inner wall of leg supporting plate 7 is connected with third leg-rest swing arm 8 by pivot, the other end of third leg-rest swing arm 8 is connected with rotating conical plate 9 by pivot, rotating conical plate 9 and the lateral outer wall of leg supporting plate 7 are vertically fixed with leg supporting plate 11, leg supporting plate 7 and rotating conical plate 9 are in folded state when electric push rod 2 does not push telescopic support 3 to stretch out, when electric push rod 2 telescopic end pushes out, by the rotation of first leg-rest swing arm 4, second leg-rest swing arm 6, third leg-rest swing arm 8 and rotating conical plate 9, and the limiting of flat swing plate, so that the horizontal state of leg supporting plate 11 in unfolded state is obtained, conveniently support leg.The middle part of the rotating conical plate 9 is connected with the flat connecting plate 10 through the rotating shaft, and the other end of the flat connecting plate 10 is connected with the inner wall of one end of the leg supporting plate 7 through the rotating shaft, the end of the first leg leaning rotating arm 4 away from the second leg leaning rotating arm 6 is connected with the linkage supporting plate 5 through the rotating shaft, the outer wall of one side of the leg supporting plate 7 is connected with the first connecting plate 12 through the rotating shaft, the middle part of the first connecting plate 12 is connected with the first leg leaning rotating arm 4 through the rotating shaft, the other end of the first connecting plate 12 is connected with the second connecting plate 13 through the rotating shaft, the other end of the second connecting plate 13 is connected with the third connecting plate 14 through the rotating shaft, the middle part of the third connecting plate 14 is connected with the first linkage plate 15 through the rotating shaft, and the first linkage plate 15 is connected with the inner side lower surface of the linkage supporting plate 5, the inner wall of the end of the third connecting plate 14 away from the second connecting plate 13 is connected with the fourth connecting plate 16 through the rotating shaft, the other end of the fourth connecting plate 16 is connected with the linkage triangular plate 17 through the rotating shaft, the inner side of the linkage triangular plate 17 is vertically fixed with the arc-shaped swing shaft 18 with the middle part bent through the bolt, one corner of the linkage triangular plate 17 is connected with the fifth connecting plate 19 through the rotating shaft, the other corner of the linkage triangular plate 17 is connected with the main supporting plate 20 through the rotating shaft, the end of the fourth connecting plate 16 close to the linkage triangular plate 17 is also connected with the sixth connecting plate 21 through the rotating shaft, the middle part of the fifth connecting plate 19 is connected with the seventh connecting plate 22 through the rotating shaft, the other end of the sixth connecting plate 21 and the seventh connecting plate 22 is connected with the eighth connecting plate 23 through the rotating shaft, and the other end of the eighth connecting plate 23 is connected with the end of the fifth connecting plate 19 away from the linkage triangular plate 17 through the rotating shaft, the fifth connecting plate 19 and the eighth connecting plate 23 are connected with the staggered connecting plate 24 through the rotating shaft, and the staggered connecting plate 24 is connected with the middle part inner surface of the main supporting plate 20 through the rotating shaft, the connecting place of the fifth connecting plate 19, the eighth connecting plate 23 and the staggered connecting plate 24 is also connected with the first telescopic plate 25 through the rotating shaft, the other end of the first telescopic plate 25 is connected with the backrest telescopic plate through the rotating shaft, the other end of the backrest telescopic plate is connected with the second telescopic plate 27 through the rotating shaft, and the other end of the second telescopic plate 27 is connected with the inner wall of one end of the main supporting plate 20 through the rotating shaft, the middle part of the second telescopic plate 27 is connected with the third telescopic plate 28 through the rotating shaft, and the other end of the third telescopic plate 28 is connected with the outer wall of one end of the linkage supporting plate 5 through the rotating shaft, the structure of the leg leaning rotating arm, the linkage plate and the telescopic plate is arranged, so that the backrest connecting plate 26 moves obliquely downward when the sofa is unfolded, so that the sofa with the iron frame can be placed close to the wall, and the occupied space when the sofa is placed is reduced; the lower end of the third telescopic plate 28 is connected with the fourth telescopic plate 29 through the rotating shaft, and the middle part of the fourth telescopic plate 29 is connected with the inner walls of both ends of the main supporting rod 1 through the rotating shaft, the middle part lower surface of the sixth connecting plate 21 is fixed with the middle linkage rod 30 through the fastener, the other end of the fourth telescopic plate 29 is connected with the linkage spring 31 through the fastener, the other end of the linkage spring 31 is connected with the middle part inner surface of the sixth connecting plate 21 through the fastener, and the linkage spring 31 is used to realize that the fourth telescopic plate 29 drives the sixth connecting plate 21 to preferentially retract when the iron frame is retracted, so as to prevent the structure from being damaged by indirect contact friction.

[0021] Please refer to Fig. 2 The inner lower surface of the linkage support plate 5 is fixed with a bag seat fixing plate 32, and the bag seat fixing plate 32 is perpendicular to the linkage support plate 5, and the bag seat fixing plate 32 fixed at the inner lower end of the linkage support plate 5 can make the sofa sitting frame installed lower, increase the sofa bag thickness, and improve the comfort when sitting. The bag seat fixing plate 32 has two layers, the lower layer is an iron sheet, and the upper layer is an anti-skid plastic, the iron sheet is provided with a insertion hole, the lower surface of the anti-skid plastic is provided with an insertion column, the insertion column of the anti-skid plastic is inserted into the insertion hole of the iron sheet for fixation, and the anti-skid design of the bag seat fixing plate 32 can effectively prevent the displacement of the sofa.

[0022] Working principle: for this kind of multifunctional sofa iron frame, the sofa iron frame has a deformable function when in use, when the telescopic end of the electric push rod 2 is retracted, the backrest connecting plate 26 is in an upright state, and the leg support plate 7 and the rotating conical plate 9 are in a retracted storage state, at this time, the sofa occupies the smallest space, when the telescopic end of the electric push rod 2 is pushed out, the telescopic end of the electric push rod 2 pushes the telescopic support rod 3 to translate to one end, thereby driving the first leg rest rotating arm 4, the second leg rest rotating arm 6, the linkage support plate 5 and the third leg rest rotating arm 8 to rotate, the rotating angle is limited by the limiting of the flat expansion plate 10, so that when the electric push rod 2 is extended to the maximum distance, the leg support plate 11 is in a horizontal state in the final unfolded state of the sofa iron frame, which is convenient for providing support to the legs or feet, and through the linkage rotation between the connecting plate, the telescopic plate and the linkage support plate 5, and the limiting constraint of the linkage support plate 5 to the connecting plate and the telescopic plate through the first linkage plate 15, the main support plate 20 can drive the backrest connecting plate 26 to move obliquely downward inside the main support rod 1 and the main support plate 20 while the leg support plate 7 is extended, the telescopic process can be controlled by starting and stopping the electric push rod 2, so that the user can find a suitable sitting angle, when retracted, the linkage spring 31 drives the fourth telescopic plate 29, the sixth connecting plate 21 and the middle linkage rod 30 to retract first, preventing damage caused by scratching between structures, and finally the bag seat fixing plate 32 fixed at the inner lower end of the linkage support plate 5 is arranged at a lower position, which is convenient for the user to lay the thicker bag, and improves the comfort of sitting.

[0023] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multifunctional sofa frame, characterized in that, include: The main support rod (1) has an electric push rod (2) bolted to its lower middle surface. The telescopic end of the electric push rod (2) is connected to a telescopic support rod (3) via a rotating connecting shaft. The two ends of the telescopic support rod (3) are connected to a first leg arm (4) via angle iron and a rotating shaft. The other end of the first leg arm (4) is connected to a second leg arm (6) via a rotating shaft. The other end of the second leg arm (6) is connected to a leg support plate (7) with a trapezoidal end face structure via a rotating shaft. The inner wall of one side of the leg support plate (7) is connected to a rotating shaft. A third leg-supporting rotating arm (8) is connected to the shaft. The other end of the third leg-supporting rotating arm (8) is connected to a rotating conical plate (9) via a rotating shaft. A leg support plate (11) is vertically fixed to one side of the outer wall of the rotating conical plate (9) and the leg support plate (7). A flat connecting plate (10) is connected to the middle of the rotating conical plate (9) via a rotating shaft. The other end of the flat connecting plate (10) is connected to the inner wall of one end of the leg support plate (7) via a rotating shaft. A linkage support plate (5) is connected to the end of the first leg-supporting rotating arm (4) away from the second leg-supporting rotating arm (6) via a rotating shaft.

2. The multifunctional sofa frame according to claim 1, characterized in that: One side of the outer wall of the leg support plate (7) is connected to a first connecting plate (12) via a pivot. The middle part of the first connecting plate (12) is cross-connected to the first leg support arm (4) via a pivot. The other end of the first connecting plate (12) is connected to a second connecting plate (13) via a pivot. The other end of the second connecting plate (13) is connected to a third connecting plate (14) via a pivot. The middle part of the third connecting plate (14) is connected to a first linkage plate (15) via a pivot. The first linkage plate (15) is connected to the inner lower surface of the linkage support plate (5).

3. A multifunctional sofa frame according to claim 2, characterized in that: The inner wall of the third connecting plate (14) away from the second connecting plate (13) is connected to the fourth connecting plate (16) via a pivot. The other end of the fourth connecting plate (16) is connected to the linkage triangle plate (17) via a pivot. The inner side of the linkage triangle plate (17) is vertically fixed with a curved swing shaft (18) with a central bend by bolts. One corner of the linkage triangle plate (17) is connected to the fifth connecting plate (19) via a pivot. The other corner of the linkage triangle plate (17) is connected to the main support plate (20) via a pivot.

4. A multifunctional sofa frame according to claim 3, characterized in that: The fourth connecting plate (16) is connected to the sixth connecting plate (21) via a pivot at one end near the linkage triangle plate (17). The middle part of the fifth connecting plate (19) is connected to the seventh connecting plate (22) via a pivot. The other ends of the sixth connecting plate (21) and the seventh connecting plate (22) are connected to the eighth connecting plate (23) via a pivot. The other end of the eighth connecting plate (23) is connected to the end of the fifth connecting plate (19) away from the linkage triangle plate (17) via a pivot. The fifth connecting plate (19) and the eighth connecting plate (23) are connected to the staggered connecting plate (24) via a pivot. The staggered connecting plate (24) is connected to the inner surface of the middle part of the main support plate (20) via a pivot.

5. A multifunctional sofa frame according to claim 4, characterized in that: The fifth connecting plate (19), the eighth connecting plate (23) and the staggered connecting plate (24) are connected by a first telescopic plate (25) via a pivot. The other end of the first telescopic plate (25) is connected by a backrest telescopic plate via a pivot. The other end of the backrest telescopic plate is connected by a second telescopic plate (27) via a pivot. The other end of the second telescopic plate (27) is connected by a pivot to the inner wall of one end of the main support plate (20). The middle part of the second telescopic plate (27) is connected by a third telescopic plate (28) via a pivot. The other end of the third telescopic plate (28) is connected by a pivot to the outer wall of one end of the linkage support plate (5).

6. A multifunctional sofa frame according to claim 5, characterized in that: The lower end of the third telescopic plate (28) is connected to the fourth telescopic plate (29) via a pivot, and the middle part of the fourth telescopic plate (29) is connected to the inner walls of both ends of the main support rod (1) via a pivot. The other end of the fourth telescopic plate (29) is connected to a linkage spring (31) via a fastener. The other end of the linkage spring (31) is connected to the inner surface of the middle part of the sixth connecting plate (21) via a fastener. The lower surface of the middle part of the sixth connecting plate (21) is also fixed with a middle linkage rod (30) via a fastener.

7. A multifunctional sofa frame according to claim 1, characterized in that: The inner lower surface of the linkage support plate (5) is fixed with a seat fixing plate (32), and the seat fixing plate (32) and the linkage support plate (5) are perpendicular to each other.

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