CN112294009B

CN112294009B - Twin sofa

Info

Publication number: CN112294009B
Application number: CN202011004654.3A
Authority: CN
Inventors: 汪俊霖; 汪宏坤; 汪宏宇; 汪令尧
Original assignee: Huawei Home Furnishing Group Co ltd
Current assignee: Huawei Home Furnishing Group Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2022-11-15
Anticipated expiration: 2040-09-22
Also published as: CN112294009A

Abstract

The application relates to a double sofa, which belongs to the field of furniture and comprises a sofa seat and armrests positioned on two sides of the sofa seat, wherein the armrests comprise a base and a pillow block part positioned above the base, and the end surface of the top end of the base is flush with the upper surface of the sofa seat; the base is connected with a sliding piece in a sliding mode, the moving direction of the sliding piece is arranged from one side, facing the sofa seat, of the base to one side, far away from the sofa seat, of the base, one side, facing the sofa seat, of the pillow block part is hinged to the sliding piece, and the pillow block part can be turned downwards when moving to the side, far away from the sofa seat, of the base, so that one side, facing the sofa seat, of the pillow block part is in a horizontal state; a locking mechanism which fixes the relative position of the sliding piece and the base when the pillow part is positioned at the top end of the base is arranged between the sliding piece and the base. The sofa has the advantages that when a person needs to lie on the double sofa for rest, the armrests can be laid flat, so that the body of the person can be laid flat when the person lies on the sofa seat.

Description

Twin sofa

Technical Field

The application relates to the field of furniture, in particular to a love seat.

Background

The sofa is one kind of soft furniture and is one multi-seat chair with soft cushion and armrests on two sides. Sofas are classified into single sofas, twin sofas, and three sofas according to size. The normal double sofa can be used for sitting three to four persons, the daily use in a family can be met, and meanwhile, the occupied space is smaller than that of a three-person sofa, so that the family can purchase the sofa in many ways.

The length of the existing twin sofa is 1260mm-1500mm, the height of a normal person is longer than that of the twin sofa, when the person lies on the sofa for rest, the person can only rest the head on the armrest at one side of the sofa, and the feet are lapped on the armrest at the other side of the sofa, so that the person is integrally bent into an arc shape, and when the person keeps the posture for a long time, the person is very unfavorable for the waist, the spine and the cervical vertebra of the person, and the health of the person is seriously damaged.

Disclosure of Invention

In order to enable a person to lie flat when resting on a love seat, the application provides a love seat.

The application provides a twin sofa adopts following technical scheme:

a twin sofa comprises a sofa seat and armrests positioned on two sides of the sofa seat, wherein the armrests comprise a base and a pillow block part, the base is arranged side by side with the sofa seat, the pillow block part is positioned above the base, and the end surface of the top end of the base is flush with the upper surface of the sofa seat; the base is connected with a sliding piece in a sliding mode, the moving direction of the sliding piece is arranged from one side, facing the sofa seat, of the base to one side, far away from the sofa seat, of the sliding piece, the pillow part is hinged to the sliding piece, when the sliding piece moves towards one side, far away from the sofa seat, of the base, the pillow part moves towards the direction, far away from the sofa seat, of the end face of the top end of the base synchronously, and when the pillow part moves to one side, far away from the sofa seat, of the base, the pillow part can be turned downwards, so that one side, facing the sofa seat, of the pillow part is in a horizontal state; and a locking mechanism for fixing the relative position of the sliding piece and the base when the pillow part is positioned at the top end of the base is arranged between the sliding piece and the base.

By adopting the technical scheme, when a person needs to lie on the double sofa for rest, the locking mechanism is firstly opened, the sliding piece can move from one side facing the sofa seat to one side far away from the sofa seat on the base, when the sliding piece moves, the pillow part synchronously moves along with the sliding piece, and when the pillow part moves to one side of the base far away from the sofa seat, the pillow part overturns downwards, so that one side of the pillow part facing the sofa seat is in a horizontal state. The pillow part of the armrest is flatly placed, so that the length of the double sofa can be increased through the armrest, the length of the double sofa can meet the height requirement of a person, and meanwhile, the pillow part is flatly placed, so that the body of the person can be in a flat lying state when the person lies on the sofa.

Optionally, a supporting structure for assisting in supporting the pillow part turned to the horizontal state is arranged on one side of the base away from the sofa seat.

Through adopting above-mentioned technical scheme, when pillow portion upset to the horizontality, pillow portion butt is on pillow portion to when exerting decurrent pressure to pillow portion, bearing structure can support pillow portion, thereby increases pillow portion's bearing capacity, prolongs pillow portion's life.

Optionally, the supporting structure includes a supporting frame with a bottom end rotatably connected to the base through a rotating shaft and a sliding rail vertically arranged and fixed to the base, a pull rod is arranged between the sliding rail and the supporting frame, one end of the pull rod is hinged to the supporting frame, the other end of the pull rod is slidably connected to the sliding rail through a moving block, the pull rod is hinged to the moving block, when the moving block moves to the bottom end of the sliding rail, the supporting frame is arranged in an inclined mode, and when the pillow portion is turned to a horizontal state, the pillow portion can be put on the supporting frame in an inclined mode.

Through adopting above-mentioned technical scheme, when need not use the support frame, make it turn to vertical state to can reduce the whole shared space of sofa of sending out two.

Optionally, one side that the base deviates from the sofa seat is provided with the holding tank, bearing structure is located in the holding tank, when the support frame changes to the tilt state, the top of support frame stretches out from the notch of holding tank.

Through adopting above-mentioned technical scheme, hide the support frame in the holding tank, can reduce the shared space of double sofa, hide the support frame simultaneously, avoid touchhing the support frame in daily life to make the support frame cause the damage.

Optionally, a door sealing device for opening or closing the notch of the accommodating groove is arranged on the base.

Through adopting above-mentioned technical scheme, through the notch with the holding tank closed to make the holding tank be confined space, make external dust, debris difficult to enter into the holding tank.

Optionally, the door sealing device includes a sealing plate whose bottom end is hinged to the bottom end of the notch of the holding tank, and a locking member is disposed on the base and locks the position of the sealing plate when the sealing plate closes the notch of the holding tank.

Through adopting above-mentioned technical scheme, when the notch of holding tank is opened to needs, open the latch fitting, make the shrouding can outwards overturn to open the notch of holding tank.

Optionally, the sofa seat comprises a base and a soft cushion padded above the base.

By adopting the technical scheme, the comfort level of a person sitting on the double sofa can be increased.

Optionally, the base include the top terminal surface with the basal portion that the upper surface of base flushed and the extension that is located the basal portion top, the extension forms the step towards one side of cushion and between one side of basal portion towards the base, the cushion extends to on the step, the sliding member is provided with two and is located respectively on the preceding terminal surface and the rear end face of basal portion, the front end and the rear end of cushion portion stretch out from the preceding terminal surface and the rear end face of base respectively, the sliding member extends to towards the one end of base the below of step, the one end that the sliding member extends to the step below is provided with the connecting rod that sets up to deviating from the slope of base direction, cushion portion pass through the connection piece with the connecting rod is articulated mutually, cushion portion is located when the base top, the connecting rod is relative around with the cushion.

Through adopting above-mentioned technical scheme, with the cushion card around the base between the connecting rod of the piece that slides at both ends to when using, the cushion is difficult for removing on the base.

Optionally, a backrest with a top higher than the upper surface of the sofa seat is arranged at the rear end of the sofa seat.

By adopting the technical scheme, when a person sits on the sofa seat, the person can lean against the backrest, so that the comfort level of the person sitting on the sofa seat is increased.

Optionally, the locking structure includes a positioning hole provided on the base and a locking bolt screwed to the sliding member, and when the pillow block is in a state of being located on the end face of the top end of the base, the locking bolt is opposite to the positioning hole and the locking bolt is inserted into the positioning hole.

By adopting the technical scheme, when the pillow part is positioned on the end face of the top end of the base, the positioning hole is opposite to the locking bolt, the locking bolt is controlled to enable the locking bolt to extend into the positioning hole, and the sliding component can be fixed, so that the pillow part is fixed on the top end of the base, and when a person holds the pillow part by hand, the pillow part is not easy to move.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when a person needs to lie on the double sofa for rest, the locking mechanism is firstly opened, the sliding piece can move from one side facing the sofa seat to one side far away from the sofa seat on the base, when the sliding piece moves, the pillow part synchronously moves along with the sliding piece, and when the pillow part moves to one side of the base far away from the sofa seat, the pillow part overturns downwards, so that one side of the pillow part facing the sofa seat is in a horizontal state. The length of the sofa for two persons can be increased through the armrests by flatting the pillow parts of the armrests, so that the length of the sofa for two persons can meet the height requirement of a person, and meanwhile, the body of the person can be in a flat lying state when the person lies on the sofa because the pillow parts are flatly laid;

2. hide the support frame in the holding tank, can reduce the shared space of double sofa, hide the support frame simultaneously, avoid touchhing the support frame in daily life to make the support frame cause the damage.

Drawings

FIG. 1 is a schematic structural view of a love seat according to an embodiment of the present application;

fig. 2 is an outer side structural view of the armrest of the embodiment of the present application;

FIG. 3 is an exploded view of the base and skid plate connection structure of an embodiment of the present application;

FIG. 4 is a schematic structural view illustrating a state where the supporting frame is rotated out of the accommodating groove according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural view of the pillow portion of the embodiment of the present application in a state of being turned over to the horizontal state;

FIG. 6 is a schematic view of an internal structure of the accommodating groove according to the embodiment of the present application;

fig. 7 is a schematic view of a connection structure of the slide rail and the moving block.

Description of the reference numerals: 1. a sofa seat; 11. a base; 12. a soft cushion; 2. a handrail; 21. a base; 211. a base; 2111. a chute; 2112. positioning holes; 212. an extension portion; 213. a circular arc surface; 22. a pillow part; 221. connecting sheets; 222. an avoidance groove; 23. accommodating grooves; 24. positioning blocks; 25. a lock; 251. twisting the cap; 252. a latch; 26. a blocking block; 3. a backrest; 4. a slide plate; 41. a connecting rod; 42. a slider; 43. locking the bolt; 5. a support frame; 6. a slide rail; 61. a substrate; 62. blocking strips; 63. clamping the strip; 64. a stopper; 7. a moving block; 71. a card slot; 8. a pull rod; 9. and (7) closing the plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a love seat, referring to fig. 1, the love seat comprises a sofa seat 1 and armrests 2 positioned on two sides of the sofa seat 1, and the bottoms of the armrests 2 are fixedly connected with the sofa seat 1. The back rest 3 is arranged at the rear end of the sofa seat 1, the bottom end of the back rest 3 is fixedly connected with the sofa seat 1, and the top of the back rest 3 is higher than the top surface of the sofa seat 1.

The sofa seat 1 includes a base 11 located below and a cushion 12 laid on the base 11. The base 11 is made of wood or metal.

Referring to fig. 1 and 2, the armrest 2 includes a base 21 arranged side by side with the sofa seat 1 and a cushion portion 22 located above the base 21, and the cushion portion 22 is freely placed on the top end surface of the base 21. The base 21 is fixedly connected with the base 11 of the sofa seat 1. The top end surface of the base 21 is flush with the upper surface of the cushion 12 of the sofa seat 1. The base 21 includes a base 211 having a top end surface flush with the top end surface of the base 11, and an extension 212 located above the base 211, and the extension 212 is integrally formed with the base 211. The top end surface of the extension 212 is flush with the upper surface of the cushion 12.

The distance between a side surface of the extension 212 remote from the cushion 12 to a side surface of the extension 212 facing the cushion 12 is smaller than the distance between a side surface of the base 211 remote from the base 11 to a side surface of the base 211 facing the base 11. The surface of the extension 212 on the side away from the cushion 12 is flush with the surface of the base 211 on the side away from the base 11, so that a step is formed between the side of the extension 212 facing the cushion 12 and the base 211. The cushion 12 extends over the step formed between the extension 212 and the base 211 and abuts the extension 212.

The slide plates 4 are slidably connected to the front end surface and the rear end surface of the base 211, respectively. The moving direction of the slide board 4 is set from the side of the base 211 toward the base 11 to the side away from the base 11. The end of the glide plate 4 facing the base 11 is located outside the side of the extension 212 facing the cushion 12. A connecting rod 41 inclined towards the direction of the extending part 212 is arranged above one end of the sliding plate 4 facing the base 11, and the connecting rod 41 and the sliding plate 4 are integrally formed.

The front and rear ends of the cushion portion 22 protrude from the front and rear end surfaces of the extension portion 212, respectively. The sides of the bottoms of the front and rear ends of the cushion part 22 facing the cushion 12 are respectively provided with a connecting piece 221 extending downward, and the connecting pieces 221 are fixedly connected with the cushion part 22. The connecting piece 221 at the front end of the pillow part 22 is hinged to the connecting rod 41 on the front end face of the base part 211 through a hinge shaft, and the connecting piece 221 at the rear end of the pillow part 22 is hinged to the connecting rod 41 on the rear end face of the base part 211 through a hinge shaft.

Since the cushion 12 extends to the step between the extension 212 and the base 211, when the cushion part 22 is located above the base 21, the connecting rods 41 and the cushion 12 are opposite to each other in the front-rear direction, so that the cushion 12 is caught between the connecting rods 41 of the two sliding plates 4, and the position of the cushion 12 is not easily moved when it is placed on the base 11.

When the sliding plate 4 moves in the direction of the base 211 away from the base 11, the bottom end of the cushion part 22 abuts on the top end surface of the base 21 and slides in the direction of the base 21 away from the cushion 12.

Referring to fig. 2 and 3, sliding grooves 2111 are formed in the front end surface and the rear end surface of the base 211, respectively, and the sliding grooves 2111 are provided in the longitudinal direction from the side of the base 211 facing the base 11 to the side of the base 211 away from the base 11. The chute 2111 is a T-shaped groove.

One side of the sliding plate 4 facing the base 211 is provided with a sliding block 42 extending into the sliding groove 2111 and connected with the sliding groove 2111 in a sliding manner, and the sliding block 42 is a T-shaped sliding block matched with the sliding groove 2111. The sliding block 42 is fixedly connected with the sliding plate 4. When the slider 42 is moved to the end of the slide groove 2111 toward the base 11, the side surface of the cushion portion 22 toward the cushion 12 is flush with the side surface of the extended portion 212 toward the cushion 12. When the slider 42 moves to the end of the slide groove 2111 facing the base 11, the distance between the central axis of the hinge shaft at the connection of the connecting piece 221 and the connecting rod 41 and the surface of the pillow portion 22 on the side facing the base 11 are the same as the distance between the central axis of the hinge shaft and the end surface of the top end of the pillow portion 22.

A positioning hole 2112 is further provided on the front end surface of the base 211, and the positioning hole 2112 is provided opposite to the slide plate 4. When the sliding block 42 is located at one end of the sliding groove 2111 facing the base 11, a locking bolt 43 penetrating through the sliding plate 4 is arranged at a position of the sliding plate 4 opposite to the positioning hole 2112, and the locking bolt 43 is in threaded connection with the sliding plate 4. The nut of the locking bolt 43 is located on the side of the slide plate 4 facing away from the base 211. The diameter of the screw portion of the lock bolt 43 is smaller than the diameter of the positioning hole 2112, so that when the lock bolt 43 is opposed to the positioning hole 2112, the lock bolt 43 is rotated to insert the screw portion of the lock bolt 43 into the positioning hole 2112, thereby fixing the position of the slide plate 4.

Referring to fig. 3 and 4, the joint between the top end surface of the extension 212 and the surface of the extension 212 facing away from the cushion 12 is an arc surface 213. The height of the center of the circular arc surface 213 is located on the same horizontal plane as the axis of the hinge shaft between the connecting piece 221 and the connecting rod 41. When the slider 42 of the sliding plate 4 moves to the end of the sliding slot 2111 away from the base 11, the axis of the hinge shaft between the connecting piece 221 and the connecting rod 41 coincides with the center of the circular arc surface 213.

Referring to fig. 4 and 5, when the cushion part 22 moves towards the side of the base 21 away from the sofa seat 1, when the axis of the hinge shaft between the connecting piece 221 and the connecting rod 41 coincides with the center of the circular arc surface 213, the cushion part 22 can be turned downwards, so that the side surface of the cushion part 22 facing the sofa seat 1 is horizontal and flush with the top surface of the cushion 12.

The avoiding groove 222 is formed in one side, away from the sofa seat 1, of the front end surface and the rear end surface of the cushion part 22, when the cushion part 22 rotates to the horizontal state, the part, extending out of the side surface of the base part 211, rotates into the avoiding groove 222, and therefore interference of the cushion part 22 by the sliding plate 4 in the overturning process of the cushion part 22 is avoided.

Referring to fig. 5 and 6, an accommodating groove 23 is formed in a side surface of the base 21 away from the sofa seat 1, a support frame 5 is arranged inside the accommodating groove 23, and the bottom end of the support frame 5 is rotatably connected inside the accommodating groove 23 through a rotating shaft. When the supporting frame 5 rotates around the rotating shaft, the top end of the supporting frame 5 can rotate out of the notch of the accommodating groove 23 to the outside of the base 21.

Be provided with the slide rail 6 of vertical setting on the lateral wall relative with the opening of holding tank 23 in the holding tank 23, slide rail 6 fixes in holding tank 23. The sliding block 7 is arranged on the sliding rail 6 and connected with the sliding block, and the moving direction of the sliding block 7 is vertically arranged. A pull rod 8 is arranged between the moving block 7 and the support frame 5, one end of the pull rod 8 is hinged with the moving block 7, and the other end of the pull rod 8 is hinged with the support frame 5.

When the moving block 7 moves to the bottom of the slide rail 6, the top of the supporting frame 5 rotates out to the outside of the receiving groove 23 in an inclined state. When the support frame 5 is rotated out of the accommodating groove 23, the pillow part 22 is rotated to be horizontal, and one side of the pillow part 22 departing from the cushion 12 is abutted against the top end of the support frame 5. The cushion portion 22 is supported by the support frame 5.

Referring to fig. 6 and 7, the slide rail 6 includes a base plate 61 attached to the groove wall of the accommodating groove 23, two vertically disposed bars 62 are respectively disposed on two sides of the base plate 61, and the two bars 62 are parallel and opposite to each other. The barrier strip 62 and the base plate 61 are welded and fixed. The opposite sides of the two barrier strips 62 are provided with clamping strips 63, and the clamping strips 63 and the barrier strips 62 are integrally formed. The mobile mass 7 is located between the two bars 62. The position of the moving block 7 opposite to the blocking strip 62 is provided with a clamping groove 71 in which the common clamping strip 63 extends. The moving block 7 cannot be separated from the slide rail 6 by the matching of the clamping groove 71 and the clamping strip 63. A stop block 64 is arranged at the bottom end of the base plate 61, and the stop block 64 is fixedly connected with the base plate 61. The stopper 64 is passed so that the moving block 7 cannot be separated from the slide rail 6 from the bottom end of the slide rail 6.

Referring to fig. 4, a sealing plate 9 is disposed at the notch of the accommodating groove 23, and the bottom end of the sealing plate 9 is rotatably connected to the notch of the accommodating groove 23 through a rotating shaft. When the closing plate 9 is turned to the vertical state, the outer side surface of the closing plate 9 is flush with the side surface of the base 21 facing away from the sofa seat 1. A positioning block 24 is arranged at the top end of the inner part of the accommodating groove 23, and the positioning block 24 is fixed on the groove wall at the top end of the accommodating groove 23. When the closing plate 9 is turned to the vertical position, the inner side surface of the closing plate 9 abuts against the positioning block 24.

Referring to fig. 2, on the side wall of the base 21 facing away from the sofa seat 1, two sides of the receiving groove 23 are respectively provided with a locking piece 25, the locking piece 25 includes a twist cap 251 pivotally connected to the base 21, and a latch 252 extending outward is provided on the side wall of the twist cap 251. When the twist cap 251 is rotated to rotate the latch 252 toward the receiving groove 23, the end of the latch 252 away from the twist cap 251 can rotate to a position opposite to the receiving groove 23. When the closing plate 9 closes the slot of the receiving slot 23, the twist cap 251 is rotated to rotate the latch 252 against the outer surface of the closing plate 9, thereby locking the closing plate 9 in a state of closing the slot of the receiving slot 23 at all times.

A stop block 26 is arranged obliquely below one side of the twist cap 251 facing the accommodating groove 23, and the stop block 26 is fixedly connected with the base 21. When the latch 252 is rotated to a position opposite to the receiving groove 23, the latch 252 is caught on the stopper 26, so that the latch 252 cannot rotate downward by gravity.

The application principle of the love seat in the embodiment of the application is as follows: when it is desired to lay the bolster portion 22 of the arm rest 2 flat, the locking member 25 is first rotated so that the closing plate 9 can open the notch of the receiving groove 23. After the notch of the accommodating groove 23 is opened, the supporting frame 5 is pulled, so that the supporting frame 5 rotates out from the notch of the accommodating groove 23 until the moving block 7 moves to the bottommost end of the sliding rail 6. The locking bolt 43 is loosened, so that the sliding plate 4 can move on the base 21 to the side far away from the sofa seat 1. With the movement of the slide plate 4, the cushion portion 22 is attached to the top end surface of the base 21 and simultaneously moves toward the side of the base 21 away from the sofa seat 1. When the cushion part 22 moves to the arc-shaped surface, the cushion part 22 can be turned downwards synchronously along with the movement of the cushion part 22, so that one side of the cushion part 22 facing the sofa seat 1 is horizontal, and one side of the cushion part 22 departing from the sofa seat 1 is abutted against the top end of the support frame 5. When the pillow part 22 is turned to the horizontal state, the body of a person lying on the sofa seat 1 can be kept in a flat state, thereby facilitating the rest of the person.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a twin sofa, includes sofa seat (1) and is located handrail (2) of sofa seat (1) both sides, its characterized in that: the armrest (2) comprises a base (21) arranged side by side with the sofa seat (1) and a pillow part (22) positioned above the base (21), and the end surface of the top end of the base (21) is flush with the upper surface of the sofa seat (1); the base (21) is connected with a sliding part in a sliding mode, the sliding part is arranged from one side, facing the sofa seat (1), of the base (21) to one side, far away from the sofa seat (1), of the sliding part, the pillow part (22) is hinged to one side, facing the sofa seat (1), of the sliding part, when the sliding part moves towards one side, far away from the sofa seat (1), of the base (21), the pillow part (22) moves towards the direction, far away from the sofa seat (1), of the top end face of the base (21) synchronously, and when the pillow part (22) moves to one side, far away from the sofa seat (1), of the base (21), the pillow part can be turned downwards so that one side, facing the sofa seat (1), of the pillow part (22) is in a horizontal state; a locking mechanism which fixes the relative position of the sliding piece and the base (21) when the pillow part (22) is positioned at the top end of the base (21) is arranged between the sliding piece and the base (21), the sofa seat (1) comprises a base (11) and a soft cushion (12) which is paved above the base (11), the base (21) comprises a base part (211) with the top end surface flush with the upper surface of the base (11) and an extension part (212) positioned above the base part (211), the side of the extension part (212) facing the soft pad (12) forms a step with the side of the base part (211) facing the base (11), the soft pad (12) extends to the step, the sliding pieces are provided with two sliding pieces which are respectively positioned on the front end surface and the rear end surface of the base part (211), the front end and the rear end of the pillow part (22) respectively extend out of the front end surface and the rear end surface of the base (21), one end of the sliding piece facing the base (11) extends to the lower part of the step, one end of the sliding piece extending to the lower part of the step is provided with a connecting rod (41) which is obliquely arranged in the direction deviating from the base (11), the pillow part (22) is hinged with the connecting rod (41) through a connecting sheet (221), when the pillow part (22) is positioned above the base (21), the connecting rod (41) is opposite to the soft cushion (12) in the front-back direction.

2. The twin sofa of claim 1, wherein: one side of the base (21) departing from the sofa seat (1) is provided with a supporting structure for assisting in supporting the pillow part (22) which is turned to be in a horizontal state.

3. The twin sofa of claim 2, wherein: the utility model discloses a support structure, including support frame (5) and the vertical setting of bottom through the pivot rotation connection on base (21) and slide rail (6) of fixing on base (21), slide rail (6) with be provided with pull rod (8) between support frame (5), pull rod (8) one end with support frame (5) are articulated mutually, the other end of pull rod (8) pass through movable block (7) with slide rail (6) slide and link to each other, pull rod (8) with it links to each other to articulate between movable block (7), when movable block (7) remove to slide rail (6) bottom department, support frame (5) are the slope setting, when pillow portion (22) overturn to the horizontality, pillow portion (22) can be taken on support frame (5) under the commentaries on classics slope state.

4. The twin sofa of claim 3, wherein: one side that base (21) deviates from sofa seat (1) is provided with holding tank (23), bearing structure is located in holding tank (23), when support frame (5) rotated to the tilt state, the top of support frame (5) stretches out from the notch of holding tank (23).

5. The twin sofa of claim 4, wherein: the base (21) is provided with a door sealing device for opening or closing the notch of the accommodating groove (23).

6. The twin sofa of claim 5, wherein: the door sealing device comprises a sealing plate (9) with the bottom end hinged to the bottom end of the notch of the accommodating groove (23), and a locking piece (25) for locking the position of the sealing plate (9) when the sealing plate (9) closes the notch of the accommodating groove (23) is arranged on the base (21).

7. The twin sofa of claim 1, wherein: the back end of the sofa seat (1) is provided with a backrest (3) with the top end higher than the upper surface of the sofa seat (1).

8. The twin sofa of claim 1, wherein: the locking mechanism comprises a positioning hole (2112) formed in the base (21) and a locking bolt (43) in threaded connection with the sliding part, and when the cushion part (22) is located on the end face of the top end of the base (21), the locking bolt (43) is opposite to the positioning hole (2112) and the locking bolt (43) is inserted into the positioning hole (2112).