CN212878581U - Sofa and armrest thereof - Google Patents

Abstract

The utility model discloses a sofa and a handrail thereof, which comprises a handrail frame, a third coat and a plurality of chair feet, wherein the third coat wraps the handrail frame, and the chair feet are fixedly arranged below the handrail frame; the armrest frame comprises a first support frame and a second support frame, the first support frame and the second support frame are detachably connected, and the first support frame and the second support frame are matched to form a sofa armrest-shaped frame; the technical scheme can greatly reduce the occupied space of the armrests in the boxing process, so that the boxing quantity of the sofa is further improved.

Description

Sofa and armrest thereof

Technical Field

The utility model relates to a life house technical field especially relates to a sofa and handrail thereof.

Background

Sofas are widely used in house upholstered garments as a piece of furniture, are usually manufactured and sold as an integral, indivisible unit.

The prior art sofas are generally not removable and not perfectly assembled by the average consumer after removal, and therefore are generally handled as a whole by trucks or vans after being manufactured by a factory.

The size of the sofa is large for the corridor and the door, which brings great inconvenience to the transportation. More seriously, the sofa is easy to collide with the surface of the sofa when being transported in a limited space, and the sofa is high in manufacturing cost, so that a factory often wraps a layer of anti-collision protection material, such as foam paper, foam plastic and the like, on the surface of the sofa, but the size of the sofa is further enlarged undoubtedly, and the transportation difficulty is increased.

And for the sofa of export, because sofa itself can't dismantle, consequently can occupy great packing volume when vanning, the vanning volume is low, and extravagant space is more, and the cost is higher.

Therefore, the detachable sofa disclosed in chinese patent publication No. CN210540189U is assembled from a plurality of sofa main bodies, each sofa main body includes a base, a backrest, and armrests, the base and the armrests are detachably connected by a plurality of connecting pieces, and the backrest and the armrests are detachably connected by a plurality of connecting pieces; the sofa in the technical scheme has the advantages of high disassembly and assembly efficiency, convenience in carrying, high safety and reliability, excellent user experience and the like.

But researchers in the field find that the packing amount of the sofa still has further space for improving during the use process.

Disclosure of Invention

An object of the utility model is to the above-mentioned problem, provide a sofa and handrail thereof, including handrail frame and third overcoat, wherein, the handrail frame can be dismantled with the sofa seat and be connected to the spare part of dispersion is also become to the split of handrail frame itself, with reduce the shared space of handrail at the vanning in-process, and then has promoted the vanning volume of sofa.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a handrail of a sofa comprises a handrail frame, a handrail sleeve and a plurality of chair legs, wherein the handrail frame is wrapped by the handrail sleeve, and the chair legs are fixedly arranged below the handrail frame; the sofa armrest frame is characterized by comprising a first support frame and a second support frame, wherein the first support frame and the second support frame are detachably connected, and the first support frame and the second support frame are matched to form a sofa armrest-shaped frame.

Preferably, the first support frame comprises a seventh frame and an eighth frame which are perpendicular to each other and fixedly connected, the second support frame comprises a ninth frame and a tenth frame which are perpendicular to each other and fixedly connected, the left end of the seventh frame is detachably connected with the top end of the tenth frame, and the bottom end of the eighth frame is detachably connected with the right end of the ninth frame; wherein the seventh frame, the eighth frame, the ninth frame and the tenth frame are metal frames, wood frames, plastic plates or wood plates.

Preferably, an upward convex V-shaped block is fixedly mounted at the top end of the tenth frame, an inverted V-shaped groove is formed in the left end of the seventh frame, the tenth frame and the seventh frame are detachably connected through the matching of the V-shaped block and the inverted V-shaped groove, and the bottom end of the eighth frame and the right end of the ninth frame are also detachably connected through the matching of the V-shaped block and the inverted V-shaped groove.

Preferably, the top of tenth frame is equipped with the sub-fastener, and the left end of seventh frame is equipped with the female fastener, and tenth frame and seventh frame form buckle structure through the cooperation of sub-fastener and female fastener and realize dismantling the connection, and the bottom of eighth frame forms buckle structure through the cooperation of sub-fastener and female fastener with the right-hand member of ninth frame equally and realizes dismantling the connection.

Preferably, the first support frame comprises a seventh frame, an eighth frame and a tenth frame, the second support frame comprises a ninth frame, the seventh frame is hinged to the eighth frame, the seventh frame is hinged to the tenth frame, the bottom end of the eighth frame is detachably connected with one end of the ninth frame, and the bottom end of the tenth frame is detachably connected with the other end of the ninth frame.

Preferably, the two ends of the ninth frame are respectively and fixedly provided with an upward convex V-shaped block, the bottom end of the eighth frame and the bottom end of the tenth frame are respectively provided with an inverted V-shaped groove, the bottom end of the eighth frame and one end of the ninth frame are matched and detachably connected through the V-shaped block and the inverted V-shaped groove, and the bottom end of the tenth frame and the other end of the ninth frame are matched and detachably connected through the V-shaped block and the inverted V-shaped groove.

As preferred, the both ends of ninth frame are equipped with sub-fastener respectively, and the bottom of eighth frame and the bottom of tenth frame all are equipped with female fastener, and the bottom of eighth frame and the one end of ninth frame form buckle structure through sub-fastener and female fastener cooperation and realize dismantling the connection, and the bottom of tenth frame and the other end of ninth frame form buckle structure through sub-fastener and female fastener cooperation and realize dismantling the connection.

Preferably, the armrest frame further comprises a first cover plate and/or a second cover plate, and the first cover plate and/or the second cover plate are fixedly connected or detachably connected with the first support frame and/or the second support frame respectively.

Preferably, the detachable connection is a connection by a fastener, a snap connection, a bayonet connection or a taper socket plug connection.

A sofa comprising an armrest as described above.

The utility model has the advantages that: the space occupied by the armrests in the boxing process can be greatly reduced, and the boxing amount of the sofa is further improved.

Drawings

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

fig. 2 is a schematic structural diagram of a seat frame, a back frame and a handrail frame according to an embodiment of the present invention;

fig. 3 is a schematic view of a first connection mode of the main support frame and the auxiliary support frame of the present invention;

FIG. 4 is a schematic view of a second connection mode of the main support frame and the auxiliary support frame of the present invention;

FIG. 5 is a schematic view of a third connection mode of the main support frame and the auxiliary support frame of the present invention;

fig. 6 is a schematic view of a first connection mode of the first support frame and the second support frame of the present invention;

fig. 7 is a schematic view of a second connection mode of the first support frame and the second support frame of the present invention;

fig. 8 is a schematic view of a third connection mode of the first support frame and the second support frame of the present invention;

fig. 9 is a schematic view of a fourth connection mode of the first support frame and the second support frame of the present invention;

fig. 10 is a schematic view illustrating a fifth connection mode of the first support frame and the second support frame according to the present invention;

fig. 11 is a schematic view illustrating a sixth connection mode of the first support frame and the second support frame according to the present invention;

fig. 12 is a schematic view illustrating a seventh connection mode of the first support frame and the second support frame according to the present invention;

fig. 13 is a schematic view illustrating an eighth connection mode of the first support frame and the second support frame according to the present invention;

fig. 14 is a schematic structural view of a second sofa according to the embodiment of the present invention;

fig. 15 is a schematic structural view of three sofas according to the embodiment of the present invention.

Description of reference numerals: 1. a sofa seat; 2. a backrest; 3. a cushion; 4. back cushion; 5. chair legs; 6. a handrail; 11. a seat frame; 21. a back frame; 61. an armrest frame; 211. a first frame; 212. a second frame; 213. a third frame; 214. a fourth frame; 215. a fifth frame; 613. a seventh frame; 614. an eighth frame; 615. a ninth frame; 616. a tenth frame; 216. And a sixth frame.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 and 2, a sofa is a three-seat sofa, and comprises a sofa seat 1, a backrest 2, armrests 6, an armrest cushion, a seat cushion 3, a back cushion 4 and a plurality of chair feet 5, wherein the seat cushion 3 is horizontally placed on the sofa seat 1, the back cushion 4 leans against the backrest 2 and is positioned above the seat cushion 3, the sofa seat 1 comprises a seat frame 11 and a seat cover, the seat cover wraps the seat frame 11, and a first storage space for accommodating the seat cushion 3 and/or the back cushion 4 is arranged on the seat frame 11; the backrest 2 comprises a back frame 21 and a backrest sleeve, the back frame 21 is wrapped by the backrest sleeve, the handrail 6 comprises a handrail frame 61 and a handrail sleeve, the handrail frame 61 is wrapped by the handrail sleeve, and the plurality of chair legs 5 are fixedly arranged below the handrail frame 61, the seat frame 11 and the back frame 21;

the back frame 21 is a frame formed by splicing a plurality of rod pieces, a second storage space is formed in the frame, the back sleeve is detachably sleeved outside the back frame 21, the back cushion 4 comprises an inner lining plate, fillers and a back cushion sleeve, and the inner lining plate in the back cushion 4 is detachably fixed on the back frame 21 through a connecting piece.

The back frame 21 includes a main support frame and a sub support frame, the main support frame includes a first frame 211, a second frame 212 and a third frame 213 connected to each other from top to bottom, the third frame 213 is located in front of the first frame 211, the sub support frame includes a fourth frame 214 and a fifth frame 215 connected to each other, the fourth frame 214 is connected to the third frame 213, and the fifth frame 215 is connected to the first frame 211.

The back frame 21 is made of a metal frame, a wood frame or a plurality of materials; the backrest 2 is covered by a cloth cover or a leather cover; the backrest 2 is wrapped on the back frame 21 and then fixed by a zipper, a magic tape, a button or a snap fastener and the like.

The armrest frame 61 comprises a first support frame and a second support frame, the first support frame and the second support frame are detachably connected, and the first support frame and the second support frame are matched to form a sofa armrest-shaped frame; wherein, the shape of the sofa armrest can be an arch shape, a cuboid shape, a cylinder shape or other sofa armrest shapes.

Preferably, the back cushion 4 is mounted on the second frame 212 through a movable buckle, the seat frame 11 is detachably connected with the third frame 213 through a screw, a taper sleeve or a ferrule, and the armrest 6 is detachably connected with the seat frame 11 through a screw, a taper sleeve or a ferrule.

Preferably, the seat frame 11 includes a front support frame, a rear support frame, a left support frame, a right support frame and four mounting plates, the left and right ends of the front support frame and the rear support frame are inserted into the left support frame and the right support frame, and then fixed by screws, the four mounting plates are respectively mounted on the front, rear, upper and lower four faces of the frame formed by the front support frame, the rear support frame, the left support frame and the right support frame, so as to form a first storage space for accommodating the cushion 3 and/or the cushion 4.

Preferably, the front supporting frame, the rear supporting frame, the left supporting frame and the right supporting frame are metal frames, and the mounting plate is a wood plate.

Preferably, the chair leg 5 is formed by two mounting parts perpendicular to each other, the two mounting parts are jointed with the bottom of the seat frame 11 and fixed at the bottom of the seat frame 11 through a fastener, the two mounting parts are jointed with the bottom of the back frame 21 and fixed at the bottom of the back frame 21 through a fastener, and are jointed with the bottom of the armrest 6 and fixed at the bottom of the armrest 6 through a fastener, and the chair leg 5 is used for supporting the sofa and contacting with the ground.

Preferably, the back frame is made of a metal frame, a wood frame or a plurality of materials; the backrest sleeve is a cloth sleeve or a leather sleeve; the backrest sleeve wraps the back frame and is fixed through a zipper, a magic tape, buttons or snap fasteners and the like.

Preferably, the handrail frame is further provided with a first cover plate and a second cover plate, the first cover plate and the second cover plate are respectively positioned on the front side and the rear side of the handrail frame 61, the first cover plate is detachably or fixedly connected with the first support frame, and the second cover plate is detachably or fixedly connected with the second support frame. It should be noted that the first cover plate may be first fixedly connected to the first support frame, and after the second cover plate is first fixedly connected to the second support frame, the first support frame may be then matched with the second support frame to form a rectangular frame.

As shown in fig. 3-5, a first embodiment of the primary and secondary support frame structure is:

in this embodiment, the first frame 211, the second frame 212 and the third frame 213 are fixedly connected, the fourth frame 214 and the fifth frame 215 are fixedly connected, the fourth frame 214 is horizontal, the front end of the fourth frame 214 is detachably connected with the bottom end of the third frame 213, and the top end of the fifth frame 215 is detachably connected with the rear end of the first frame 211.

The first detachable connection is implemented as follows: the front end of the fourth frame 214 is detachably connected with the bottom end of the third frame 213 through a fastener, and the top end of the fifth frame 215 is detachably connected with the rear end of the first frame 211 through a fastener; the fastener is preferably a screw.

The second detachable connection mode is as follows: the front end of the fourth frame 214 is detachably connected to the bottom end of the third frame 213 through a fastener, and the top end of the fifth frame 215 is detachably connected to the rear end of the first frame 211 through a fastener.

A third detachable connection embodiment is: the front end fixed mounting of fourth frame 214 has the bellied V-arrangement piece that makes progress, and the bottom of third frame 213 is equipped with the inverted V-arrangement groove, and third frame 213 and fourth frame 214 realize dismantling the connection through the cooperation of V-arrangement piece and inverted V-arrangement groove, and the top of fifth frame 215 is dismantled through the cooperation in V-arrangement piece and inverted V-arrangement groove with the rear end of first frame 211 equally and is connected.

With this arrangement, during the packing process, the main support frame and the auxiliary support frame are actually separated, and both the main support frame and the auxiliary support frame are substantially L-shaped, so that placing the third frame 213 of the main support frame on the seat frame 11 with the first frame 211 facing downward and placing the fifth frame 215 of the auxiliary support frame on the seat frame 11 with the fourth frame 214 facing downward can greatly reduce the space occupied by the back frame 21 during the packing process, thereby increasing the packing amount of the sofa by about one third.

The second embodiment of the main support frame and the auxiliary support frame structure is as follows:

in the present embodiment, the outer side of the first frame 211 is hinged to the inner side of the second frame 212, and the outer side of the second frame 212 is hinged to the inner side of the third frame 213, or the inner side of the first frame 211 is hinged to the outer side of the second frame 212, and the inner side of the second frame 212 is hinged to the outer side of the third frame 213;

the fourth frame 214 is fixedly connected with the fifth frame 215, the fourth frame 214 is horizontal, the front end of the fourth frame 214 is detachably connected with the bottom end of the third frame 213, and the top end of the fifth frame 215 is detachably connected with the rear end of the first frame 211.

The main support frame and the auxiliary support frame are detachably connected in a manner referred to the detachable connection of the main support frame and the auxiliary support frame in the first embodiment.

So set up, at the vanning in-process, the vanning mode of vice support frame is the same with first kind of embodiment, and main support frame is collapsible to be drawn in into the one deck through rotating, can very big reduction back of the body frame 21 shared space at the vanning in-process like this, and then makes the vanning volume of sofa improve about the third.

The third embodiment of the main support frame and the auxiliary support frame structure is as follows:

in this embodiment, the first frame 211, the second frame 212 and the third frame 213 are fixedly connected, the fourth frame 214 is hinged to the fifth frame 215, the fourth frame 214 is in an inclined state, the front end of the fourth frame 214 is detachably connected to the third frame 213, and the top end of the fifth frame 215 is hinged to the rear end of the first frame 211;

a horizontal sixth frame 216 is further provided, and a front end of the sixth frame 216 is detachably connected to a bottom end of the third frame 213.

The manner of detachable connection of the front end of the fourth frame 214 to the third frame 213 and the detachable connection of the front end of the sixth frame 216 to the bottom end of the third frame 213 may refer to the detachable connection referred to in the first embodiment of the main and auxiliary support frames.

In this embodiment, an insertion groove into which the front end of the fourth frame 214 is inserted is fixedly installed at the upper half portion of the third frame 213.

So set up, in the vanning process, earlier take out the front end of fourth frame 214 in the slot, rotating fourth frame 214 and fifth frame 215 to the state of laminating with the main tributary strut inboard, place the main tributary strut on seat frame 11 according to a first kind of implementation again, and sixth frame 216 is regular rectangle frame, only occupies less space, the space that the back of the body frame 21 that can be very big reduction is shared at the vanning in-process like this, and then makes the vanning volume of sofa improve about one third.

In this embodiment, the first frame 211, the second frame 212, the third frame 213, the fourth frame 214, and the fifth frame 215 respectively include at least one metal rod or metal pipe; further preferably, the fourth frame 214 and the fifth frame 215 may also be formed by two parallel metal rods or tubes.

In this embodiment, a seventh frame 613, an eighth frame 614, a ninth frame 615 and a tenth frame 616 are provided, and the seventh frame 613, the eighth frame 614, the ninth frame 615 and the tenth frame 616 are respectively a metal frame, a wood frame, a plastic plate or a wood plate.

The first embodiment of the first and second support frame structures is:

the seventh frame 613 and the eighth frame 614 are perpendicular to each other and fixedly connected to form a first support frame, the ninth frame 615 and the tenth frame 616 are perpendicular to each other and fixedly connected to form a second support frame, when the first support frame and the second support frame are matched to form a rectangular parallelepiped frame, the seventh frame 613 and the ninth frame 615 are horizontal, the eighth frame 614 and the tenth frame 616 are vertical, wherein the left end of the seventh frame 613 is detachably connected to the top end of the tenth frame 616, and the bottom end of the eighth frame 614 is detachably connected to the right end of the ninth frame 615.

Further preferably, as shown in fig. 6, the left end of the seventh frame 613 is detachably connected to the top end of the tenth frame 616 by means of a taper sleeve, and the bottom end of the eighth frame 614 is detachably connected to the right end of the ninth frame 615 by means of a taper sleeve.

As shown in fig. 7, the left end of the seventh frame 613 is detachably connected to the top end of the tenth frame 616 by screws and a taper sleeve, and the bottom end of the eighth frame 614 is detachably connected to the right end of the ninth frame 615 by screws and a taper sleeve.

As shown in fig. 8, the left end of the seventh frame 613 is detachably connected to the top end of the tenth frame 616 by means of a snap, and the bottom end of the eighth frame 614 is detachably connected to the right end of the ninth frame 615 by means of a snap.

As shown in fig. 9, the left end of the seventh frame 613 is detachably connected to the top end of the tenth frame 616 by screws, and the bottom end of the eighth frame 614 is detachably connected to the right end of the ninth frame 615 by screws.

So set up, at the vanning in-process, first support frame and second support frame can stack together for the shared space of handrail frame 61 reduces by a wide margin, and then makes the vanning volume of sofa obtain further promotion.

A second embodiment of the first and second support frame structures is:

the seventh frame 613, the eighth frame 614 and the tenth frame 616 form a first support frame, the ninth frame 615 forms a second support frame, the seventh frame 613 and the eighth frame 614 are hinged, the seventh frame 613 and the tenth frame 616 are hinged, the bottom end of the eighth frame 614 is detachably connected with one end of the ninth frame 615, and the bottom end of the tenth frame 616 is detachably connected with the other end of the ninth frame 615.

Further preferably, as shown in fig. 10 and 11, a bottom end of the eighth frame 614 is detachably connected to one end of the ninth frame 615 by means of screws, and a bottom end of the tenth frame 616 is detachably connected to the other end of the ninth frame 615 by means of screws.

As shown in fig. 12, the bottom end of the eighth frame 614 is detachably connected to one end of the ninth frame 615 by means of a taper sleeve, and the bottom end of the tenth frame 616 is detachably connected to the other end of the ninth frame 615 by means of a taper sleeve.

As shown in fig. 13, the bottom end of the eighth frame 614 is detachably connected to one end of the ninth frame 615 by means of a snap, and the bottom end of the tenth frame 616 is detachably connected to the other end of the ninth frame 615 by means of a snap.

So set up, at the vanning in-process, first support frame is collapsible to draw in into the one deck through rotating, and the second support frame is the rectangle frame of rule, and the shared space of handrail frame 61 reduces by a wide margin like this, and then makes the vanning volume of sofa obtain further promotion.

Example two:

the difference between this embodiment and the first embodiment is: as shown in fig. 14, this embodiment is a high-ranked imperial concubine sofa, i.e. the sofa in this embodiment has no armrest 6, while the sofa in this embodiment has two backrests.

Example three:

as shown in fig. 15, this embodiment is a combination of the first and second embodiments.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A handrail of a sofa comprises a handrail frame (61), a handrail sleeve and a plurality of chair feet (5), wherein the handrail frame (61) is wrapped by the handrail sleeve, and the chair feet (5) are fixedly arranged below the handrail frame (61); the sofa armrest frame is characterized in that the armrest frame (61) comprises a first support frame and a second support frame, the first support frame and the second support frame are detachably connected, and the first support frame and the second support frame are matched to form a sofa armrest-shaped frame.

2. The armrest of a sofa of claim 1, wherein the first support frame comprises a seventh frame (613) and an eighth frame (614) that are perpendicular and fixedly connected to each other, the second support frame comprises a ninth frame (615) and a tenth frame (616) that are perpendicular and fixedly connected to each other, the left end of the seventh frame (613) is detachably connected to the top end of the tenth frame (616), and the bottom end of the eighth frame (614) is detachably connected to the right end of the ninth frame (615); wherein the seventh frame (613), the eighth frame (614), the ninth frame (615), and the tenth frame (616) are metal frames, wood frames, plastic plates, or wood plates.

3. The armrest of the sofa according to claim 2, wherein a V-shaped block protruding upwards is fixedly installed at the top end of the tenth frame (616), an inverted V-shaped groove is formed at the left end of the seventh frame (613), the tenth frame (616) and the seventh frame (613) are detachably connected through the cooperation of the V-shaped block and the inverted V-shaped groove, and the bottom end of the eighth frame (614) and the right end of the ninth frame (615) are also detachably connected through the cooperation of the V-shaped block and the inverted V-shaped groove.

4. The armrest of the sofa of claim 2, wherein the top end of the tenth frame (616) is provided with a male fastener, the left end of the seventh frame (613) is provided with a female fastener, the tenth frame (616) and the seventh frame (613) are detachably connected by a snap structure formed by the mating of the male fastener and the female fastener, and the bottom end of the eighth frame (614) and the right end of the ninth frame (615) are also detachably connected by a snap structure formed by the mating of the male fastener and the female fastener.

5. The armrest of the sofa of claim 1, wherein the first support frame comprises a seventh frame (613), an eighth frame (614) and a tenth frame (616), the second support frame comprises a ninth frame (615), the seventh frame (613) and the eighth frame (614) are hinged, the seventh frame (613) and the tenth frame (616) are hinged, the bottom end of the eighth frame (614) is detachably connected with one end of the ninth frame (615), and the bottom end of the tenth frame (616) is detachably connected with the other end of the ninth frame (615).

6. The armrest of the sofa according to claim 5, wherein two ends of the ninth frame (615) are respectively and fixedly provided with a V-shaped block protruding upwards, the bottom end of the eighth frame (614) and the bottom end of the tenth frame (616) are respectively provided with an inverted V-shaped groove, the bottom end of the eighth frame (614) is detachably connected with one end of the ninth frame (615) through the matching of the V-shaped block and the inverted V-shaped groove, and the bottom end of the tenth frame (616) is detachably connected with the other end of the ninth frame (615) through the matching of the V-shaped block and the inverted V-shaped groove.

7. The armrest of the sofa of claim 5, wherein the ninth frame (615) has two ends respectively provided with a sub-fastener, the bottom end of the eighth frame (614) and the bottom end of the tenth frame (616) have female fasteners, the bottom end of the eighth frame (614) and one end of the ninth frame (615) form a snap structure through the cooperation of the sub-fastener and the female fastener to realize the detachable connection, and the bottom end of the tenth frame (616) and the other end of the ninth frame (615) form a snap structure through the cooperation of the sub-fastener and the female fastener to realize the detachable connection.

8. The armrest of the sofa according to claim 1, wherein the armrest frame (61) further comprises a first cover plate and/or a second cover plate, the first cover plate and/or the second cover plate being fixedly connected or detachably connected to the first support frame and/or the second support frame, respectively.

9. The armrest of a sofa of claim 2, 5 or 8, wherein the detachable connection is by fastener connection, snap connection, bayonet connection or taper plug connection.

10. A sofa comprising an armrest according to any of claims 1-9.

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