阅读说明：本技术 一种可拆卸沙发 (Detachable sofa ) 是由 郑坚荣 于 2019-11-13 设计创作，主要内容包括：本发明涉及一种可拆卸沙发,属于沙发的技术领域,其包括沙发底座、沙发靠背和沙发扶手,所述沙发底座的下方设置有支座,支座设置两个,且两个支座分设于沙发底座的两侧,沙发底座的下表面连接有卡件,支座的上表面开设有凹槽,卡件卡设于凹槽内,支座远离沙发底座中心的一侧与沙发扶手固定连接,沙发靠背与沙发扶手可拆卸连接,本发明具有使沙发便于搬动的效果。(The invention relates to a detachable sofa, which belongs to the technical field of sofas and comprises a sofa base, a sofa backrest and sofa handrails, wherein two supporting seats are arranged below the sofa base and are respectively arranged at two sides of the sofa base, the lower surface of the sofa base is connected with clamping pieces, the upper surface of each supporting seat is provided with a groove, the clamping pieces are clamped in the grooves, one side of each supporting seat, which is far away from the center of the sofa base, is fixedly connected with the sofa handrail, and the sofa backrest is detachably connected with the sofa handrail.)

1. The utility model provides a can dismantle sofa, includes sofa base (1), sofa back (2) and sofa handrail (3), its characterized in that: the sofa comprises a sofa base (1) and is characterized in that two supports (4) are arranged below the sofa base (1), the two supports (4) are arranged on two sides of the sofa base (1) respectively, clamping pieces (11) are connected to the lower surface of the sofa base (1), grooves (41) are formed in the upper surface of each support (4), the clamping pieces (11) are clamped in the grooves (41), one side, far away from the center of the sofa base (1), of each support (4) is fixedly connected with a sofa armrest (3), and the sofa backrest (2) is detachably connected with the sofa armrests (3).

2. The detachable sofa of claim 1, wherein: the lower surface fixedly connected with box (12) of sofa base (1), box (12) are located between two supports (4), and the one side of sofa back (2) is kept away from towards sofa base (1) to the opening of box (12), and box (12) sliding connection has ascending containing box (121) of opening.

3. The detachable sofa of claim 1, wherein: the two ends of the groove (41) are close to the two ends of the support (4) in the length direction, the clamping piece (11) is located at the two ends of the sofa base (1) close to the sofa armrest (3), the clamping piece (11) is a sliding wheel, the clamping piece (11) is rotatably connected with the sofa base (1), the rotating shaft (21) of the clamping piece (11) is horizontal and perpendicular to the length direction of the groove (41), the lower surface of the box body (12) is rotatably connected with the pulley (122), and the sofa backrest (2) is rotatably connected with the sofa armrest (3).

4. The detachable sofa of claim 1, wherein: two relative side fixed connection of support (4) has horizontally connecting plate (43), and connecting plate (43) are located sofa back (2) under, are connected with fixed plate (22) between two supports (4), the tip and support (4) butt of fixed plate (22), are connected with screw (221) between fixed plate (22) and connecting plate (43), and the vertical upwards extension in one side of sofa base (1) is kept away from in fixed plate (22) to keep away from one side butt of sofa base (1) with sofa back (2).

5. The detachable sofa of claim 1, wherein: sofa handrail (3) are the box body shape of opening orientation keeping away from sofa back (2) one side, and sliding connection has handrail case (32) in sofa handrail (3), and the opening direction of two handrail cases (32) sets up relatively, and fixed connection has horizontally baffle (321) in handrail case (32), and baffle (321) set up the one deck at least.

6. The detachable sofa of claim 5, wherein: the top of the opening side of the armrest box (32) is rotatably connected with a table plate (322), the hinge axis of the table plate (322) is horizontal, a support plate (325) is hinged between the partition plate (321) closest to the top in the armrest box (32) and the top of the armrest box (32), and the hinge axis of the support plate (325) is vertical.

7. The detachable sofa of claim 6, wherein: the upper surface of table (322) articulates there are extension board (71) and backup plate (72), and the articulated axis level of extension board (71) and backup plate (72) and parallel to each other, has seted up supporting groove (323) on table (322), and extension board (71) and backup plate (72) all are located supporting groove (323), and the last fixed surface of backup plate (72) is connected with a plurality of draw-in grooves (721) that are on a parallel with the articulated axis of self, and standing groove (324) that are on a parallel with the articulated axis of backup plate (72) are seted up to the bottom of supporting groove (323).

8. The detachable sofa of claim 2, wherein: the positioning device is characterized in that a positioning assembly (5) is arranged in the box body (12), the positioning assembly (5) comprises two positioning rods (51), two limiting pieces (52) and springs (53), the limiting pieces (52) are fixedly connected with the top end of the box body (12), the two limiting pieces (52) are arranged, the positioning rods (51) penetrate through the two limiting pieces (52) and one vertical side surface of the box body (12), the positioning rods (51) are slidably connected with the limiting pieces (52) and the box body (12), the positioning rods (51) are perpendicular to the side surface, facing the box body (12), of the support (4), positioning holes (42) matched with the positioning rods (51) are formed in the support (4), bulges (511) are fixedly connected on the positioning rods (51), the bulges (511) are located between the two limiting pieces (52), the springs (53) are sleeved on the outer wall of the positioning rods (51), and the springs (53), one end of the positioning rod (51) far away from the positioning hole (42) is fixedly connected with a stop piece (512).

9. The detachable sofa of claim 1, wherein: support (4) are close to the position at self both ends and are provided with lifting unit (6), and lifting unit (6) include cylinder (61) and universal wheel (62), and cylinder (61) inlay and locate in support (4), the piston rod end of cylinder (61) is vertical downwards, and cylinder (61) and support (4) fixed connection, universal wheel (62) fixed connection in the bottom of cylinder (61).

Technical Field

The invention relates to the technical field of sofas, in particular to a detachable sofa.

Background

The sofa is a multi-seat chair with soft cushion, a backrest chair with spring or thick foam plastics, etc. and armrests on two sides, and is one kind of soft furniture. The sofa is mainly used for providing a sitting and resting place for people, and provides convenience for the leisure and entertainment of owners and guests.

The existing sofa comprises a sofa base, a sofa backrest and sofa armrests, a semi-open space for people to sit is formed among the sofa base, the sofa backrest and the sofa armrests, so that the sofa occupies a large volume relatively, and the sofa is usually arranged integrally and is not easy to detach.

The above prior art solutions have the following drawbacks: when moving, the whole sofa needs to be moved, and the whole sofa occupies a large volume, so that the sofa is difficult to move.

Disclosure of Invention

The invention aims to provide a detachable sofa which is convenient to move.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a can dismantle sofa, includes sofa base, sofa back and sofa handrail, sofa base's below is provided with the support, and the support sets up two, and two supports divide the both sides of locating sofa base, and sofa base's lower surface is connected with the fastener, and the upper surface of support is seted up flutedly, and in the recess was located to the fastener card, one side and sofa handrail fixed connection at sofa base center were kept away from to the support, the sofa back can be dismantled with the sofa handrail and be connected.

Through adopting above-mentioned technical scheme, with sofa base rebound, until the fastener breaks away from the draw-in groove, then sofa base separates with the support promptly, sofa base separates with the sofa handrail promptly, it is comparatively convenient to make the dismantlement between sofa base and the sofa handrail, and the sofa back can be dismantled with the sofa handrail and be connected, it can separate to make between sofa back and the sofa handrail, thereby the sofa back, several most of sofa base and sofa handrail can be dismantled and separate, can move each part of sofa, the volume of each part of sofa is less relatively, it is comparatively convenient when making to move.

The invention is further configured to: the lower surface of the sofa base is fixedly connected with a box body, the box body is positioned between the two supports, the opening of the box body faces one side, away from the sofa backrest, of the sofa base, and the box body is connected with a containing box with an upward opening in a sliding mode.

Through adopting above-mentioned technical scheme, pull out the containing box, can accomodate some article in the containing box, make sofa base below space by make full use of.

The invention is further configured to: the two ends of the groove are close to the two ends of the support in the length direction, the clamping piece is located at the two ends of the sofa base close to the sofa armrests, the clamping piece is a sliding wheel and is rotatably connected with the sofa base, the rotating axis of the clamping piece is horizontal and perpendicular to the length direction of the groove, the lower surface of the box body is rotatably connected with a pulley, and the sofa backrest is rotatably connected with the sofa armrests.

By adopting the technical scheme, the clamping piece can roll in the groove, the friction force between the collecting clamping piece and the support is small, so that the movement of the sofa base is labor-saving, the sliding friction between the box body and the ground is changed into rolling friction by the pulley, and the rolling friction is far smaller than the sliding friction, so that the movement of the sofa base is labor-saving; when the sofa base moves towards the direction far away from the sofa backrest, the box body plays a supporting role for the sofa base, so that the two ends of the sofa base can be kept in a stable horizontal state when not supported by the support.

The invention is further configured to: two the horizontal connecting plate is connected to two relative side fixed connections of support, and the connecting plate is located sofa backrest under, is connected with the fixed plate between two supports, and the tip and the support butt of fixed plate are connected with the screw between fixed plate and the connecting plate, and sofa base's one side vertical upwards extension is kept away from to the fixed plate to keep away from sofa base's one side butt with sofa backrest.

By adopting the technical scheme, the connecting plate plays a role in connecting the fixing plate, the connecting plate and the nail plate are connected by adopting the screws, the screws are easy to disassemble, and the fixing plate is easy to disassemble; the fixing plate plays a role in connecting the two supports, so that the relative position between the two supports is stable; the fixed plate plays a limiting role in the sofa base, and the sofa base can not rotate any more when rotating to abut against the fixed plate.

The invention is further configured to: the sofa armrest is in a box body shape with an opening facing away from one side of a sofa backrest, armrest boxes are connected in the sofa armrest in a sliding mode, the opening directions of the two armrest boxes are arranged oppositely, a horizontal partition plate is fixedly connected in each armrest box, and at least one layer of partition plate is arranged.

Through adopting above-mentioned technical scheme, the baffle separates the space in the handrail case, all can accomodate article such as some paper handkerchiefs, tealeaves on every layer of baffle, makes the space in the handrail case can be utilized by a larger margin to the space in the sofa handrail is by make full use of.

The invention is further configured to: the top of the opening side of the armrest box is rotatably connected with a table plate, the hinge axis of the table plate is horizontal, a supporting plate is hinged between the baffle closest to the top in the armrest box and the top of the armrest box, and the hinge axis of the supporting plate is vertical.

Through adopting above-mentioned technical scheme, pull out the handrail case, then rotate the table to the level, rotate the backup pad about ninety degrees, the top of backup pad and the lower surface butt of table, the backup pad plays the supporting role to the table, makes the maintenance horizontality that the table can be more stable, can place teacup books etc. on the plastic sheet, when using the sofa, it is comparatively convenient to place article.

The invention is further configured to: the upper surface of table articulates there are extension board and backup plate, and the articulated axis level of extension board and backup plate is just parallel to each other, has seted up on the table and has supported the groove, and extension board and backup plate all are located and support the inslot, and the last fixed surface of backup plate is connected with a plurality of draw-in grooves that are on a parallel with self articulated axis, supports the bottom in groove and sets up a plurality of standing grooves that are on a parallel with backup plate articulated axis.

Through adopting above-mentioned technical scheme, rotation extension board and backup plate, the tip card that makes the extension board is in the position of draw-in groove, the backup plate is supported by the extension board, when the extension board card is in the draw-in groove of different positions, the inclination of backup plate is different, make the people of using adjust to watching more comfortable angle according to self height, can place the cell-phone, it is dull and stereotyped, the standing groove is placed to the bottom of books etc. in, the standing groove plays the positioning action to cell-phone and flat board etc. and, the bottom of having avoided cell-phone and flat board etc. produces relative slip with the table, make placing more stable of cell-phone and flat board etc. then lean on cell-phone and flat board etc. on the backup plate, make use cell-phone and flat board etc. no longer need the manual cell-phone and flat board etc. of people to hold.

The invention is further configured to: set up locating component in the box, locating component includes the locating lever, locating part and spring, the top fixed connection of locating part and box, and the locating part sets up two, the locating lever passes a vertical side of two locating parts and box, and locating lever and locating part and box sliding connection, the locating lever perpendicular to support is towards the side of box, set up the locating hole with locating lever looks adaptation on the support, fixedly connected with arch on the locating lever, the arch is located between two locating parts, the outer wall at the locating lever is established to the spring housing, and the spring is located between two locating parts, the locating lever is kept away from the one end fixedly connected with of locating hole and is stopped.

By adopting the technical scheme, when the sofa base is abutted against the sofa backrest, the positioning rod is just inserted into the positioning hole and cannot move relative to the support, so that the box body cannot move relative to the support, namely the sofa base cannot move relative to the support, and the position stability of the sofa base is ensured; the blocking piece prevents the end part of the positioning rod from slipping off from the limiting piece; when the sofa base needs to be moved, the armrest box is pulled open to expose the positioning rod, the positioning rod is pulled to be away from the positioning hole, and the sofa base can be moved; when square removal sofa base to being close to the sofa back, stimulate the locating lever earlier, make the tip of locating lever stretch into the box, avoid the locating lever to be blocked by the support, then when crossing with the extension line of the tip of locating lever removal to the locating lever and support, loosen the locating lever, when sofa base and sofa back butt, the locating lever just is just to the locating hole, and the locating lever is driven by the spring and is inserted the locating hole, and sofa base is fixed a position.

The invention is further configured to: the position that the support is close to self both ends is provided with lifting unit, and lifting unit includes cylinder and universal wheel, and in the cylinder inlayed and locates the support, the tailpiece of the piston rod of cylinder was vertical downwards, and cylinder and support fixed connection, universal wheel fixed connection in the bottom of cylinder.

Through adopting above-mentioned technical scheme, the piston rod of cylinder stretches out, the cylinder drives the universal wheel and moves down, until universal wheel and ground butt, and when making the support keep away from the ground, gap grow between sofa and the ground, thereby make the ground of sofa bottom clear up more easily, can promote the sofa this moment simultaneously, the universal wheel becomes rolling friction with the sliding friction between sofa and the ground, make the frictional force between sofa and the ground reduce greatly, the sofa easily is promoted, further make the bottom of sofa be convenient for clear up.

In conclusion, the beneficial technical effects of the invention are as follows:

1. by arranging the support, the clamping piece and the groove, the sofa backrest is detachably connected with the sofa armrest, so that the sofa base is more convenient to detach from the sofa armrest, and most parts of the sofa backrest, the sofa base and the sofa armrest can be detached and separated, so that the sofa backrest is more convenient to move;

2. the sofa backrest is easy to disassemble and assemble by arranging the rotating groove, the rotating wheels and the fixing plate;

3. through setting up locating component, guaranteed the stability of sofa base position.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic illustration of an explosive structure of the present invention;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is a schematic view of an explosive structure of the invention intended to embody a fixed plate;

FIG. 5 is a schematic view showing an inner structure of the console box;

FIG. 6 is a schematic structural view of the lift assembly;

fig. 7 is a state view of the sofa converted into a bed.

In the figure, 1, a sofa base; 11. a fastener; 12. a box body; 121. a storage box; 122. a pulley; 2. a sofa backrest; 21. a rotating shaft; 22. a fixing plate; 221. a screw; 3. a sofa armrest; 31. a rotating groove; 32. a handrail box; 321. a partition plate; 322. a table plate; 323. a support groove; 324. a placement groove; 325. a support plate; 4. a support; 41. a groove; 42. positioning holes; 43. a connecting plate; 5. a positioning assembly; 51. positioning a rod; 511. a protrusion; 512. a blocking member; 52. a limiting member; 53. a spring; 6. a lifting assembly; 61. a cylinder; 62. a universal wheel; 7. a support assembly; 71. a support plate; 72. a backup plate; 721. a clamping groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the detachable sofa disclosed by the invention comprises a sofa base 1, a sofa backrest 2 and sofa handrails 3, wherein two supports 4 are arranged below the sofa base 1, the two supports 4 are respectively arranged at two sides of the sofa base 1, the supports 4 are detachably connected with the sofa base 1, and the sofa backrest 2 is detachably connected with the sofa handrails 3. When moving, the sofa base 1 and the support 4 can be detached, and the sofa backrest 2 and the support 4 can be detached, so that the sofa parts are separated, the volume of each part is relatively small, and the sofa is convenient to move when moving.

Referring to fig. 3 and 4, the lower surface of the sofa base 1 is connected with the clamping piece 11, the clamping piece 11 is positioned at two ends of the sofa base 1 close to the sofa armrest 3, the clamping piece 11 is positioned at one side of the sofa base 1 close to the sofa backrest 2, the upper surface of the support 4 is provided with a groove 41, the clamping piece 11 is positioned in the groove 41, two ends of the groove 41 are close to two ends of the support 4 in the length direction, the clamping piece 11 is a sliding wheel, the clamping piece 11 is rotatably connected with the sofa base 1, the rotating axis 21 line of the clamping piece 11 is horizontal and vertical to the length direction of the groove 41, the groove 41 has a limiting effect on the clamping piece 11, so that the clamping piece 11 can only slide in the groove 41, the accuracy of the moving direction of the sofa base 1 is ensured, and two ends of the groove 41 do not penetrate through the top of the support 4, thereby two ends of the groove 41 play a, when the sofa base 1 is disassembled, the sofa base 1 only needs to be moved upwards to enable the clamping piece 11 to leave from the groove 41, and the sofa base 1 is disassembled from the support 4, so that the sofa base 1 and the support 4 are convenient to disassemble; the lower surface of the sofa base 1 is fixedly connected with a box body 12, the box body 12 plays a supporting role for the sofa base 1, the box body 12 is positioned between the two supports 4, the opening of the box body 12 faces to one side of the sofa base 1 away from the sofa backrest 2, the box body 12 is connected with a containing box 121 with an upward opening in a sliding mode, the containing box 121 is pulled out, and some articles can be contained in the containing box 121, so that the space below the sofa base 1 is fully utilized; the bottom of the box body 12 is rotatably connected with four pulleys 122, the four pulleys 122 are respectively arranged at four corners of the lower surface of the box body 12, the sofa backrest 2 is rotatably connected with the sofa armrest 3, and one side of the support 4 far away from the center of the sofa base 1 is fixedly connected with the sofa armrest 3. The sofa base 1 is moved in the direction far away from the sofa backrest 2, the pulleys 122 roll on the ground, so that the sofa base 1 can be moved more easily until the clamping pieces 11 are positioned at the end parts of the grooves 41, then the sofa backrest 2 is rotated to enable the sofa backrest 2 to be in a horizontal state, two ends of the lower surface of the sofa backrest 2 are supported by the supports 4, the upper surface of the sofa backrest 2 is just flush with the upper surface of the sofa base 1, the resting area of the sofa is increased, and the sofa is more comfortable when being used for sleeping and resting (refer to fig. 7).

Referring to fig. 3 and 4, a rotating groove 31 is formed in one side of the sofa armrest 3, which abuts against the sofa backrest 2, the rotating groove 31 extends horizontally from the end of the sofa armrest 3, which is close to the sofa backrest 2, to the direction close to the sofa base 1, and then extends vertically and downwardly, a horizontal rotating shaft 21 is embedded in the position of the sofa backrest 2, which is close to the bottom end of the sofa backrest, two ends of the rotating shaft 21 exceed two ends of the sofa backrest 2, two ends of the rotating shaft 21 are located in the rotating groove 31, and when the sofa backrest 2 is in a vertical state, the bottom of the sofa backrest 2 abuts against the upper surface of the support 4. When the sofa backrest 2 is installed, the rotating shaft 21 is only required to be clamped into the rotating groove 31, and when the sofa backrest 2 is disassembled, the rotating shaft 21 is only required to slide out of the rotating groove 31, so that the sofa backrest 2 is convenient to install and disassemble.

Referring to fig. 4, two opposite side surfaces of two supports 4 are fixedly connected with horizontal connecting plate 43, connecting plate 43 is located under sofa backrest 2, be connected with fixed plate 22 between two supports 4, the tip and the support 4 butt of fixed plate 22, be connected with screw 221 between fixed plate 22 and the connecting plate 43, screw 221 plays the fixed action to between fixed plate 22 and the connecting plate 43, screw 221 easily dismantles, it is more convenient to make the dismantlement of fixed plate 22, one side vertical upwards extension that sofa base 1 was kept away from to fixed plate 22, and the one side butt of sofa base 1 was kept away from with sofa backrest 2, and the top of fixed plate 22 exceeds the top of rotating groove 31, sofa base 1 rotates and no longer rotates when reaching with fixed plate 22 butt promptly, fixed plate 22 has played limiting displacement to sofa base 1.

Referring to fig. 5, the sofa armrest 3 is in the shape of a box with an opening facing away from the sofa backrest 2, the armrest boxes 32 are slidably connected to the sofa armrest 3, and the opening directions of the two armrest boxes 32 are opposite. The horizontal partition boards 321 are fixedly connected in the armrest box 32, at least one layer of partition boards 321 is arranged, and the partition boards 321 separate the space in the armrest box 32, so that the space in the armrest box 32 can be utilized to a greater extent, and the space in the sofa armrest 3 is fully utilized; the top of the opening side of handrail case 32 rotates and is connected with table 322, the articulated axis level of table 322, it has backup pad 325 to articulate between baffle 321 that is closest to the top in handrail case 32 and the top of handrail case 32, the articulated axis of backup pad 325 is vertical, when backup pad 325 rotates the top of backup pad 325 and the lower surface butt of table 322, backup pad 325 plays the supporting role to table 322, table 322 is the horizontality this moment, can place teacup, books etc. on table 322, it is comparatively convenient to make sofa place article.

Referring to fig. 3, a positioning assembly 5 is disposed in the box 12, the positioning assembly 5 includes a positioning rod 51, a limiting member 52 and a spring 53, the limiting member 52 is fixedly connected to the top end of the box 12, two limiting pieces 52 are arranged, the positioning rod 51 passes through the two limiting pieces 52 and one vertical side surface of the box body 12, the positioning rod 51 is connected with the limiting pieces 52 and the box body 12 in a sliding way, the positioning rod 51 is perpendicular to the side surface of the support 4 facing the box body 12, the support 4 is provided with a positioning hole 42 matched with the positioning rod 51, the positioning rod 51 is fixedly connected with a bulge 511, the bulge 511 is positioned between the two limiting pieces 52, a spring 53 is sleeved on the outer wall of the positioning rod 51, and the spring 53 is located between the two position-limiting members 52, one end of the positioning rod 51 far away from the positioning hole 42 is fixedly connected with a blocking member 512, when the sofa base 1 abuts against the sofa backrest 2, the positioning rod 51 is just inserted into the positioning hole 42. Make the sofa become the user state of sofa by the state of bed, make sofa back 2 rotate to vertical, remove sofa base 1, when locating lever 51 is close to support 4, pulling locating lever 51, spring 53 is compressed, when locating lever 51's tip and support 4 butt, loosen the hand, continue to remove sofa base 1, when sofa base 1 and sofa back 2 butt, locating lever 51 just is just to locating hole 42, spring 53 drives locating lever 51 and stretches into in the locating hole 42, can not relative movement between sofa base 1 and the support 4 this moment, the stability in sofa base 1 position has been guaranteed.

Referring to fig. 6, the lifting assembly 6 is arranged at a position, close to two ends of the support 4, the lifting assembly 6 comprises a cylinder 61 and a universal wheel 62, the cylinder 61 is embedded in the support 4, a piston rod end of the cylinder 61 is vertically downward, the cylinder 61 is fixedly connected with the support 4, and the universal wheel 62 is fixedly connected to the bottom end of the cylinder 61. After the sofa is used for a long time, a lot of dust can be piled up to the bottom of sofa, at this moment, make the piston rod of cylinder 61 stretch out, the piston rod of cylinder 61 drives universal wheel 62 and moves down, until universal wheel 62 and ground butt, and when making support 4 keep away from the ground, the gap grow between sofa and the ground, thereby make the ground of sofa bottom clear up more easily, universal wheel 62 becomes rolling friction with the sliding friction between sofa and the ground, make the frictional force between sofa and the ground reduce greatly, the sofa easily is promoted, further make the bottom of sofa be convenient for clear up.

Referring to fig. 5, the supporting assembly 7 includes a paper supporting plate 71 and a backup plate 72, a supporting groove 323 is formed on the table plate 322, the supporting plate 71 and the backup plate 72 are both located in the supporting groove 323, the supporting plate 71 and the backup plate 72 are hinged to the table plate 322, the hinge axes of the supporting plate 71 and the backup plate 72 are horizontal and parallel to each other, when the table 322 is in a horizontal state, the support plate 71 is located on one side of the backup plate 72, which is far away from the sofa base 1, the upper surface of the backup plate 72 is fixedly connected with a plurality of clamping grooves 721 which are parallel to the hinge axis of the support plate 72, the bottom of the support groove 323 is provided with a plurality of placing grooves 324 which are parallel to the hinge axis of the backup plate 72, when the support plate 71 and the backup plate 72 are abutted against the bottom of the support groove 323, the end part of the support plate 71, which is far away from the hinge axis of the support plate 71, is abutted against the hinge side of the support groove 323, and the distance from the hinge axis of the support plate 71 to the hinge axis of the support plate 71 is one third to two thirds. The support plate 71 and the backup plate 72 are rotated to enable the end portion of the support plate 71 to be clamped at the position of the clamping groove 721, the backup plate 72 is supported by the support plate 71, the bottom ends of the mobile phone, the flat plate and the like can be placed in the placing groove 324, then the mobile phone, the flat plate and the like lean against the backup plate 72, the mobile phone, the flat plate and the like do not need to be held manually when the mobile phone, the flat plate and the like are used on the sofa, and the comfort degree of the sofa in use is improved.

The implementation principle of the embodiment is as follows: the screws 221 between the connecting plate 43 and the fixing plate 22 are removed, the fixing plate 22 is removed from the connecting plate 43, the fixing plate 22 is separated from the two supports 4, the two supports 4 are separated at the same time, then the sofa backrest 2 is moved, the rotating shaft 21 slides out from the rotating groove 31, and the sofa backrest 2 is removed; the sofa base 1 is slightly moved upwards, then the support 4 is moved, the support 4 is far away from the lower part of the sofa base 1, the clamping piece 11 is separated from the groove 41, the sofa base 1 is separated from the support 4, the sofa base 1, the sofa backrest 2 and the sofa armrest 3 are separated conveniently in the whole process, the sofa is convenient to disassemble, and the sofa base 1, the sofa backrest 2, the sofa armrest 3 and other parts can be transported separately when moving home, so that the transporting difficulty of the sofa is reduced; during installation, two supports 4 are placed oppositely, after two ends of the rotating shaft 21 are placed in the rotating groove 31, the screws 221 are screwed between two ends of the fixing plate 22 and the connecting plate 43, finally the sofa base 1 is slightly moved upwards, the clamping piece 11 enters the groove 41, then the sofa base 1 is moved until the sofa base 1 is abutted to the sofa backrest 2, the sofa is installed immediately, and the sofa is convenient to install.

The sofa has a good storage function, when the sofa is used, the armrest box 32 is pulled open, and articles such as tissues, tea leaves and the like can be placed in the armrest box 32; the containing box 121 is pulled out, and articles such as standby bedding and the like can be placed in the containing box 121, so that the space below the sofa base 1 and in the sofa armrest 3 is fully utilized.

The sofa has a good storage function, after the armrest box 32 is pulled open, the table plate 322 is rotated to be in a horizontal state, the supporting plate 325 is rotated, the top end of the supporting plate 325 is abutted to the lower surface of the table plate 322, the table plate 322 is supported by the supporting plate 325, articles such as a water cup and a paper drawer can be placed on the table plate 322, furthermore, when a mobile phone or a flat plate is used on the sofa, the supporting plate 71 and the backup plate 72 are rotated, the end portion of the supporting plate 71 is clamped at the position of the clamping groove 721, the backup plate 72 is supported by the supporting plate 71, the bottom ends of the mobile phone, the flat plate and the like are placed in the placing groove 324, then the mobile phone, the flat plate and the like are abutted to the backup plate 72, the mobile phone, the flat plate and the like are supported.

Before the sofa base 1 is moved, the armrest boxes 32 are pulled open to expose the positioning rods 51, then the positioning rods 51 are pulled to enable the positioning rods 51 to be far away from the positioning holes 42, the sofa base 1 is moved in the direction far away from the sofa backrest 2 until the clamping pieces 11 are positioned at the end parts of the grooves 41, then the sofa backrest 2 is rotated to enable the sofa backrest 2 to be in a horizontal state, two ends of the lower surface of the sofa backrest 2 are supported by the supporting seats 4, the upper surface of the sofa backrest 2 is just flush with the upper surface of the sofa base 1, the area of the sofa capable of having a rest is increased, the sofa is comfortable when being used for sleeping and resting, the area of the upper surface of the sofa can be increased, and the comfort degree of the; make the sofa become the user state of sofa by the state of bed, make sofa back 2 rotate to vertical, remove sofa base 1, when locating lever 51 is close to support 4, pulling locating lever 51, spring 53 is compressed, when locating lever 51's tip and support 4 butt, loosen the hand, continue to remove sofa base 1, when sofa base 1 and sofa back 2 butt, locating lever 51 just is just to locating hole 42, spring 53 drives locating lever 51 and stretches into in the locating hole 42, can not relative movement between sofa base 1 and the support 4 this moment, the stability in sofa base 1 position has been guaranteed.

After the sofa is used for a period of time, the piston rod of the cylinder 61 extends out, the cylinder 61 drives the universal wheel 62 to move downwards until the universal wheel 62 is abutted with the ground, then the support 4 is continuously driven to be away from the ground, meanwhile, the support 4 drives the sofa handrail 3 and the sofa base 1 to be away from the ground, so that a gap between the sofa and the ground is enlarged, the ground at the bottom of the sofa is easy to clean, the sofa is pushed, the sliding friction between the sofa and the ground is changed into rolling friction by the universal wheel 62, the friction between the sofa and the ground is greatly reduced, the sofa is easy to push, the ground below the sofa is emptied, the difficulty in cleaning the ground at the bottom of the sofa is further reduced, after the cleaning is finished, the sofa moves back to the original position, the piston rod of the cylinder 61 retracts, the piston rod of the cylinder 61 drives the universal wheel 62 to enter the support 4, the sofa handrail, so that the sofa is placed stably.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.