CN111248679A

CN111248679A - Combined sofa

Info

Publication number: CN111248679A
Application number: CN202010154258.2A
Authority: CN
Inventors: 许惠阳; 王永霞
Original assignee: Fujian Hui'an Zhenhui Furniture Co Ltd
Current assignee: Fujian Hui'an Zhenhui Furniture Co Ltd
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2020-06-09
Anticipated expiration: 2040-03-07
Also published as: CN111248679B

Abstract

The invention relates to a combined sofa, which comprises at least two sofa units and at least two switching assemblies connected with the sofa units, wherein the bottoms of the sofa units are provided with butt joint holes and supporting legs, each switching assembly comprises a base plate and at least two telescopic columns, the bottoms of the telescopic columns are fixed on the base plate, the end parts of the telescopic columns and the hole bottoms of the butt joint holes are respectively provided with a first magnetic suction unit for promoting the telescopic columns and the base plates to attract each other, the telescopic columns are hollow, the inner cavities of the telescopic parts of the telescopic columns are fixedly provided with drawn wires, and the drawn wires penetrate through the inner cavities of the telescopic columns and the base plates and are fixedly provided with control ends; the combined sofa assembly has the advantages that the freedom degree of sofa combination can be improved, the combined sofa assembly can be ensured to have good combination stability, the combined switching assembly has a good hiding effect, and the whole appearance of the sofa unit combination can be kept.

Description

Combined sofa

Technical Field

The invention relates to the field of furniture, in particular to a combined sofa.

Background

With the improvement of living standard, the sofa becomes the necessary furniture for most families and offices, and in order to meet diversified demands and convenience of transportation, a large sofa is generally composed of a plurality of sofa modules.

Chinese patent No. CN201630733U discloses a box-like sofa. Including left unit, well unit, right unit, each unit is with the stuff, a spring, the sponge is as the inside lining, the seat and the back that the cladding of external cladding formed constitute, length is longer than well unit, the stone unit around the left unit seat, length is the same around well unit and the right unit seat, left unit and right unit back height are the same, well unit back height is than left unit, right unit height, the breach is established to left unit seat back right part and back right part, the breach is established to well unit seat right part and back right part, three unit is by the combination and link firmly each other.

The prior art has the defects that the combination purpose is achieved by the mutual complementation of the shapes of the sofas; however, this method not only has poor stability and is easy to be pushed to separate, but also limits the variety of the free combination of the sofa.

Disclosure of Invention

The invention aims to provide a combined sofa, which has the advantages of improving the freedom degree of sofa combination and ensuring that a combined sofa external member has good combination stability.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a modular sofa, includes two at least sofa units, still includes two at least switching subassemblies of connecting the sofa unit, the bottom of sofa unit is equipped with butt joint hole and supporting legs, switching subassembly includes that base plate and two at least bottoms are fixed in the flexible post of base plate, the tip of flexible post and the hole bottom in butt joint hole are equipped with respectively and make the first magnetism unit of both inter attraction, the inside cavity of flexible post, and the inner chamber of the flexible part of flexible post is fixed with the wire drawing, the wire drawing passes the inner chamber and the base plate of flexible post and is fixed with the control end at the tip.

By adopting the technical scheme, when two or more sofa units need to be assembled, the switching assembly is plugged into the bottoms of the two sofa units, the two telescopic columns of the same switching assembly are respectively aligned to the butt joint holes of the two sofa units, and the telescopic columns are attracted by the first magnetic attraction unit to extend and are embedded into the butt joint holes, so that the horizontal movement of the two sofa units is limited, the stable combination effect is achieved, if the size is limited, the base plate is attached to the bottoms of the sofa units, and the excellent hiding effect is achieved; when the sofa unit needs to be separated and recombined, the telescopic column can be pulled to contract by pulling the drawing wire, so that the butt joint assembly can be separated from the bottom of the sofa again; therefore, the sofa units can be freely and rapidly combined or disassembled, the combined sofa units are connected into a stable whole and are not easy to deviate, the freedom degree of sofa combination can be improved, and the combined sofa suite can be ensured to have good combination stability.

The invention is further configured to: the bottom of the sofa unit is fixed with a movable assembly with a telescopic function, the minimum length of the movable assembly relative to the sofa unit is smaller than that of the supporting legs, and the minimum distance from the top of the telescopic column to the bottom of the base plate is larger than the length of the supporting legs relative to the bottom of the sofa unit.

Through adopting above-mentioned technical scheme, the removal subassembly is convenient for the sofa and is shifted, and its flexible function and length restriction for the switching subassembly can adopt to raise the bottom of sofa unit and pack into, after lowering the height again, will can't break away from, thereby make the switching subassembly also still have the restriction effect to sofa unit even if hit the whereabouts, make it keep the stable combination, and after the transfer is accomplished, can be with the shrink of flexible post, support as stable stewing with the supporting legs.

The invention is further configured to: the movable assembly comprises a threaded sleeve fixed at the bottom of the sofa unit, a lifting rod penetrating through the threaded sleeve and in threaded connection with the threaded sleeve, and a universal wheel fixed at the bottom of the lifting rod, a driven wheel is fixed at the top of the lifting rod, and a driving assembly for driving the driven wheel to rotate is arranged in the sofa unit.

Through adopting above-mentioned technical scheme, drive assembly drives the lifter and rotates, reaches the lift effect through the screw-thread fit with the thread bush to because can the free rotation between universal wheel and the lifter, the universal wheel still can keep the roll effect.

The invention is further configured to: the sofa unit is internally provided with a hollow pipe frame, an upright rod is fixed on the hollow pipe frame, the driving component comprises a transmission pipe, a driving wheel, a transmission wheel and a first pull rope, the transmission pipe is sleeved on the upright rod and is rotatably connected with the upright rod, the driving wheel is fixed on the transmission pipe, the transmission wheel is wound on a driving wheel, the driving wheel, the transmission wheel and the transmission pipe are coaxial, a second pull rope is in transmission connection between the transmission wheel and a driven wheel, a plurality of second pull ropes respectively penetrate through a hollow inner cavity of the hollow pipe frame, the first pull rope penetrates through the hollow inner cavity of the hollow pipe frame to one side of the sofa unit, a pull ring is; and a coil spring for forcing the pulled first pull rope to retract is fixed between the transmission pipe and the vertical rod.

By adopting the technical scheme, the bracket provides stable support for each part, the hollow channel keeps the second pull rope connected orderly, and the gravity influence of the pull rope is eliminated; when the pull ring is pulled to a required position, the pull ring can be buckled with the buckle head to keep a moving state; after the transfer is finished, the buckling connection is cancelled, and the second pull rope is wound on the transmission wheel again through the reset of the coil spring, so that the height of the sofa single is reduced, and the standing state is recovered again.

The invention is further configured to: flexible post includes the lower post and cup joints the last post in the lower post, be fixed with two archs on the outer wall of last post, the inner wall in butt joint hole is equipped with the groove of leading soon that supplies protruding slip scarf joint, lead to revolve the groove including playing in the butt joint hole opening and to the terminal horizontal segment of groove bottom spiral extension's spiral section and connection spiral section, wherein the horizontal segment extends along the circumference in butt joint hole, the inner chamber internal fixation of going up the post has interior pole, the wire drawing is around in interior pole.

By adopting the technical scheme, in the process that the telescopic column is attracted by magnetic force to move upwards, the protrusion drives the upper column to move upwards spirally and finally stays in the horizontal section by inertia, and in the process, the drawn wire is also wound on the inner rod; at the moment, the horizontal section does not have the guide of downward movement, so that the telescopic column cannot fall off due to vibration or impact of the sofa unit; when the separation is needed, the drawn wires are pulled, and the telescopic columns can reversely form rotation separation due to the rotation traction.

The invention is further configured to: the lateral wall of base plate is provided with along length direction's first spout, the control end slides and connects in first spout, the wire drawing is worn out from the one end of first spout, be provided with the second magnetism unit of attracting each other between the other end lateral wall of first spout and the control end.

Through adopting above-mentioned technical scheme, can carry out regularly to the wire drawing, magnetism is inhaled the structure and can be kept taut, strengthens regularly to the removal of wire drawing will turn into the removal of control end, has indicating effect.

The invention is further configured to: the base plate includes the cell board of two symmetries and connects the connecting rod between the cell board, the both ends of connecting rod are provided with spacing wing along circumference salient, be provided with the second spout that supplies the connecting rod scarf joint and the first spacing groove that supplies spacing wing inlay card that multichannel arranged along connecting rod length direction on the cell board.

By adopting the technical scheme, the limiting wings can limit the axial movement of the unit plates relative to the connecting rod, the telescopic amount of the connecting rod relative to the unit plates can be adjusted through the matching of the limiting wings and different first limiting grooves, and the relative position between the two unit plates is adjusted to adjust the combined distance between the sofa modules.

The invention is further configured to: the outer wall of the limiting wing is provided with a limiting clamping protrusion, and the inner wall of the first limiting groove is provided with a second limiting clamping groove matched with the limiting clamping protrusion; the limiting clamping lugs comprise guide convex lugs and limiting convex lugs which are perpendicular to each other, wherein the guide convex lugs are positioned on one sides of the limiting convex lugs close to the bottoms of the first limiting grooves, and the protruding heights of the guide convex lugs and the limiting convex lugs relative to the surfaces of the limiting wings are gradually reduced from the crossed positions to the respective end parts; the top of the crossing one end of the guide convex rib and the limit convex rib is flush with the top of the limit convex rib, and one side of the limit convex rib, which faces the guide convex rib, is a guide surface.

By adopting the technical scheme, in the process of butting the limiting wing and the first limiting groove, the guide convex edge is firstly contacted with the inner wall of the first limiting groove and mutually generates elastic deformation on the surface so as to form avoidance; and at the moment, a smooth concave surface is formed by taking the guide convex edge as the center, before the limit convex edge is abutted against the surface of the first limit groove, the surface of the first limit groove is subjected to pre-deformation, the smooth limit convex edge can be further deformed, and the deformed part is reset until the limit convex edge is matched with the second limit clamping groove; after the matching, the first limiting groove is difficult to separate due to the lack of guide pre-deformation in the process of separating outwards; therefore, the quick installation of the end head is realized, and the connection stability between the first limit groove and the limit wing is fully ensured.

The invention is further configured to: the connecting rod comprises two unit rods respectively connected to the unit plates and an adjusting sleeve connected between the unit rods, and the adjusting sleeve is sleeved on the unit rods and is in threaded connection with the unit rods.

Through adopting above-mentioned technical scheme, the connection of adjusting collar and connecting rod can further finely tune on the basis of the preconditioning of spacing wing again to accurate adjusting according to the demand, and for the regulation of spacing wing, adjusting collar can carry out the regulation of convenience at any time after the installation of switching subassembly is accomplished.

The invention is further configured to: two be provided with the case seat that covers switching subassembly between the sofa unit, the inside cavity of case seat is provided with the garbage bin, the top of case seat is fixed with branch, and the top of branch is fixed with puts the thing board.

Through adopting above-mentioned technical scheme, on the distance adjustment's based on adapter assembly basis, can further increase the variety of furniture combination as required.

In conclusion, the invention has the following beneficial effects:

1. the sofa units can be freely and quickly combined or disassembled through the adapter component, the combined sofa units are connected into a stable whole and are not easy to deviate, and the combined adapter component has a good hiding effect and can keep the beauty of the whole sofa unit combination;

2. the sofa can be freely switched to a moving or standing state by integrally regulating and controlling the lifting of the sofa moving part, and the sofa can be quickly transferred in a unit or in an integral manner;

3. on the basis of the distance adjustment of the switching assembly, the diversity of furniture combinations can be further increased according to requirements.

Drawings

FIG. 1 is an overall configuration view of a sectional sofa according to embodiment 1;

FIG. 2 is a combination structure view of the sofa unit base and adapter assembly of embodiment 1;

FIG. 3 is a structural view of the adapter module of embodiment 1;

FIG. 4 is an enlarged view at A of FIG. 3 of embodiment 1;

FIG. 5 is a structural view of the bottom of the sofa unit in embodiment 2;

FIG. 6 is a structural view of a moving unit and a driving unit in accordance with embodiment 2;

fig. 7 is an overall configuration diagram of the modular sofa of embodiment 3.

In the figure, 1, a sofa unit; 2. a switching component; 3. a moving assembly; 4. a drive assembly; 5. a box base; 6. a strut; 7. a storage plate; 11. a butt joint hole; 111. a rotation guide groove; 12. supporting legs; 13. a hollow pipe frame; 14. erecting a rod; 15. buckling a head; 21. a substrate; 211. a first chute; 212. a unit plate; 213. a connecting rod; 2131. a unit bar; 2132. an adjusting sleeve; 214. a limiting wing; 215. a first limit groove; 216. a second chute; 22. a telescopic column; 221. column descending; 222. putting the column on; 223. a protrusion; 224. an inner rod; 23. drawing wires; 24. a control end; 25. limiting clamping protrusions; 251. a guide rib; 252. a limiting convex rib; 31. a threaded sleeve; 32. a lifting rod; 33. a universal wheel; 34. a driven wheel; 41. a drive tube; 42. a driving wheel; 43. a driving wheel; 44. a first pull cord; 45. a second pull cord; 46. and (4) a pull ring.

Detailed Description

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

Example 1: a combined sofa is shown in figures 1 and 2, a sofa unit 1 and an adapting component 2, wherein the number of the sofa unit 1 is set according to the actual requirement, and the sofa unit 1 can also be other unit bodies for people to sit; the adapter assembly 2 is used to connect two sofa units 1 as a whole.

The bottom of the sofa unit 1 is provided with a butt joint hole 11 and supporting legs 12, the inner wall of the butt joint hole 11 is provided with a spiral guiding groove 111 in a concave manner, the spiral guiding groove 111 comprises a spiral section which starts from the opening of the butt joint hole 11 and extends spirally towards the bottom of the groove and a horizontal section which is connected with the tail end of the spiral section, and the horizontal section extends along the circumferential direction of the butt joint hole 11.

Referring to fig. 2 and 3, the adapter assembly 2 includes a base plate 21 and two telescopic columns 22, wherein the two telescopic columns 22 are respectively fixed on the surface of the base plate 21 near two ends and respectively matched with the butt holes 11 of the two sofa units 1.

The telescopic column 22 comprises a lower column 221 and an upper column 222 sleeved on the lower column 221, and the end part of the upper column 222 and the bottom of the butt joint hole 11 are respectively provided with a first magnetic attraction unit for promoting the mutual attraction of the two. Two protrusions 223 are fixed on the outer wall of the upper column 222, and the protrusions 223 can be embedded into the spin guide groove 111 and slide along the spin guide groove 111 when the upper column 222 is attracted by the first magnetic attraction unit, and finally stay in the horizontal section, and the upper column 222 rotates relative to the lower column 221 in the process. The upper column 222 and the lower column 221 are both hollow, an inner rod 224 and a wire drawing 23 are fixed at one end of the inner cavity of the upper column 222, which is far away from the lower column 221, wherein the inner rod 224 extends into the lower column 221, and the wire drawing 23 winds around the inner rod 224 in the process of rotating the upper column 222. The other end of the pull wire 23 passes through the inner cavity of the lower column 221 and the channel provided in the base plate 21 to the side wall of the base plate 21, and is fixed with a control terminal 24 at the end. The lateral wall of base plate 21 is provided with along length direction's first spout 211, and control end 24 slides and connects in first spout 211, and wire drawing 23 is worn out from the one end of first spout 211, is provided with the second magnetism unit of attracting each other between the other end lateral wall of first spout 211 and the control end 24, and when control end 24 contradicted and had the one end of magnetism to inhale with first spout 211, flexible post 22 was the complete contraction state. The first magnetic unit and the second magnetic unit are both magnets.

The base plate 21 includes two symmetrical unit plates 212 and a link 213 connected between the unit plates 212, and two telescopic pillars 22 correspond to one unit plate 212, respectively. Two ends of the connecting rod 213 are provided with limiting wings 214 along the circumferential direction in a protruding manner, and the cell plate 212 is provided with a second sliding groove 216 for the connecting rod 213 to be embedded and a plurality of first limiting grooves 215 for the limiting wings 214 to be embedded and arranged along the length direction of the connecting rod 213. By adjusting the position-limiting wings 214 to correspond to different first position-limiting grooves 215, the total length of the position-limiting plates for the sofa units 1 to connect can be adjusted, so that deviation compensation can be provided for the connection between the sofa units 1, and the distance between the sofa units 1 can be adjusted according to requirements.

Referring to fig. 3 and 4, in order to stably connect the limiting wing 214 and the first limiting groove 215, a limiting protrusion 25 is disposed on an outer wall of the limiting wing 214, and a second limiting groove engaged with the limiting protrusion 25 is disposed on an inner wall of the first limiting groove 215. The limiting block protrusion 25 comprises a guiding convex rib 251 and a limiting convex rib 252 which are perpendicular to each other, wherein the guiding convex rib 251 is positioned at one side of the limiting convex rib 252 close to the groove bottom of the first limiting groove 215, and the protruding heights of the guiding convex rib 251 and the limiting convex rib 252 relative to the surface of the limiting wing 214 are gradually reduced from the crossed position to the respective end parts; the top of the intersecting end of the guiding convex rib 251 and the limiting convex rib 252 is flush with the top of the limiting convex rib 252, and the side of the limiting convex rib 252 facing the guiding convex rib 251 is a guiding surface. With this configuration, the structure is easy to mount and detach, which requires a large force to detach.

Referring to fig. 3, the connecting rod 213 includes two unit rods 2131 respectively connected to the unit plates 212 and an adjusting sleeve 2132 connected between the unit rods 2131, wherein the adjusting sleeve 2132 is sleeved on the unit rods 2131 and is in threaded connection with the unit rods 2131, and the two units are symmetrical and have opposite thread directions. The adjustment of the adjustment sleeve 2132 can be precisely adjusted based on the pre-adjustment of the limit wings 214.

Assembly of the sofa unit 1:

two adapting components 2 are correspondingly arranged between every two sofa units 1, and the horizontal lengths of the two adapting components 2 are different, so that a deflection angle is formed between the sofa units 1. Therefore, before installation, the limiting wings 214 are adjusted to match with different first limiting grooves 215 according to the space requirement between the sofa units 1, so as to pre-adjust the overall horizontal length of the adapter assembly 2.

Then the adapter module 2 is plugged into the bottoms of the two sofa units 1, the two telescopic columns 22 of the same adapter module 2 are respectively aligned to the butt joint holes 11 of the two sofa units 1, and the telescopic columns 22 are attracted by the first magnetic attraction units to be extended and embedded into the butt joint holes 11 to complete butt joint.

If the sofa unit 1 does not reach the optimal distance or angle, the adjustment sleeve 2132 may be rotated for further fine adjustment.

Disassembly of the sofa unit 1 (see fig. 2 and 3):

the control end 24 at the side end of the base plate 21 is shifted to one end of the first sliding groove 211, the control end 24 pulls the wire drawing 23 and drives the telescopic column 22 to contract, and at the moment, the base plate 21 is pressed downwards and moved out of the bottom of the sofa unit 1, so that the sofa unit 1 can be disassembled.

Example 2: as shown in fig. 5 and 6, the difference from the embodiment 1 is that a moving assembly 3 having a telescopic function is fixed at the bottom of the sofa unit 1, the minimum length of the moving assembly 3 relative to the sofa unit 1 is smaller than that of the supporting feet 12, and the minimum distance from the top of the telescopic column 22 to the bottom of the base plate 21 is larger than that of the supporting feet 12 relative to the bottom of the sofa unit 1.

The moving assembly 3 comprises a threaded sleeve 31 fixed at the bottom of the sofa unit 1, a lifting rod 32 penetrating through the threaded sleeve 31 and in threaded connection with the threaded sleeve 31, and a universal wheel 33 fixed at the bottom of the lifting rod 32, wherein a driven wheel 34 is fixed at the top of the lifting rod 32, and a driving assembly 4 driving the driven wheel 34 to rotate is arranged in the sofa unit 1.

A hollow pipe frame 13 is arranged in the sofa unit 1, a vertical rod 14 is fixed on the hollow pipe frame 13, the driving component 4 comprises a driving pipe 41 which is sleeved on the vertical rod 14 and is rotationally connected with the vertical rod 14, a driving wheel 42 fixed on the driving pipe 41, a driving wheel 43 fixed on the driving pipe 41 and a first pull rope 44 wound around the wheel of the driving wheel 42, the driving wheel 43 and the driving pipe 41 are coaxial, a second pull rope 45 is connected between the driving wheel 43 and the driven wheel 34 in a driving way, a plurality of second pull ropes 45 respectively pass through the hollow inner cavity of the hollow pipe frame 13, the first pull rope 44 passes through the hollow inner cavity of the hollow pipe frame 13 to one side of the sofa unit 1 and is fixed with a pull ring 46 at the end, and the bottom; a coil spring for forcing the first pull rope 44 to retract is fixed between the transmission pipe 41 and the vertical rod 14.

When the single sofa unit 1 or the whole sofa unit 1 is moved:

the first pull rope 44 is pulled to pull the driving wheel 42 to rotate, the driven wheel 34 is driven to rotate through the transmission of the transmission pipe 41, the transmission wheel 43 and the second pull rope 45, the driven wheel 34 drives the lifting rod 32 to rotate, the lifting effect is achieved through the thread matching with the threaded sleeve 31, and the universal wheel 33 can rotate freely between the universal wheel 33 and the lifting rod 32 at any angle. After being pulled to the required position, the sofa unit 1 can be kept in the moving state by fastening the pull ring 46 with the buckle head 15.

When the single sofa unit 1 or the sofa units 1 are kept still:

the buckling is cancelled, and the second pull rope 45 is wound on the transmission wheel 43 again through the resetting of the coil spring, so that the height of the sofa is lowered, and the standing state is restored again.

Example 3: as shown in fig. 7, the difference from embodiment 2 lies in that a box base 5 covering the adapter module 2 is provided between the two sofa units 1, the box base 5 is hollow and provided with a trash can, a support rod 6 is fixed on the top of the box base 5, and a storage plate 7 is fixed on the top of the support rod 6.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the present invention.

Claims

1. A modular sofa comprising at least two sofa units (1), characterized in that: the sofa comprises a sofa body and is characterized by further comprising at least two switching components (2) connected with the sofa unit (1), wherein the bottom of the sofa unit (1) is provided with a butt joint hole (11) and supporting legs (12); the switching assembly (2) comprises a base plate (21) and at least two telescopic columns (22) with the bottoms fixed on the base plate (21), wherein first magnetic attraction units for promoting the mutual attraction of the end parts of the telescopic columns (22) and the bottoms of the butt joint holes (11) are respectively arranged on the end parts of the telescopic columns and the bottoms of the butt joint holes; the telescopic column (22) is hollow, a drawn wire (23) is fixed in an inner cavity of a telescopic part of the telescopic column (22), and the drawn wire (23) penetrates through the inner cavity of the telescopic column (22) and the base plate (21) and is fixed with a control end (24) at the end.

2. The modular sofa of claim 1, wherein: the sofa unit is characterized in that a movable assembly (3) with a telescopic function is fixed at the bottom of the sofa unit (1), the minimum length of the movable assembly (3) relative to the sofa unit (1) is smaller than that of the supporting legs (12), and the minimum distance from the top of the telescopic column (22) to the bottom of the base plate (21) is greater than the length of the supporting legs (12) relative to the bottom of the sofa unit (1).

3. The modular sofa of claim 2, wherein: the movable assembly (3) comprises a threaded sleeve (31) fixed to the bottom of the sofa unit (1), a lifting rod (32) penetrating through the threaded sleeve (31) and in threaded connection with the threaded sleeve (31), and a universal wheel (33) fixed to the bottom of the lifting rod (32), a driven wheel (34) is fixed to the top of the lifting rod (32), and a driving assembly (4) driving the driven wheel (34) to rotate is arranged in the sofa unit (1).

4. The modular sofa of claim 3, wherein: the sofa unit is characterized in that a hollow pipe frame (13) is arranged in the sofa unit (1), a vertical rod (14) is fixed on the hollow pipe frame (13), the driving component (4) comprises a transmission pipe (41) which is sleeved on the vertical rod (14) and is rotationally connected with the vertical rod (14), a driving wheel (42) which is fixed on the transmission pipe (41), a driving wheel (43) which is fixed on the transmission pipe (41) and a first pull rope (44) which is wound on a wheel of the driving wheel (42), the driving wheel (43) and the transmission pipe (41) are coaxial, a second pull rope (45) is in transmission connection between the driving wheel (43) and a driven wheel (34), a plurality of second pull ropes (45) respectively pass through a hollow inner cavity of the hollow pipe frame (13), the first pull rope (44) passes through the hollow inner cavity of the hollow pipe frame (13) to one side of the sofa unit (1), the bottom of the sofa is provided with a buckle head (15) for buckling the pull ring (46); a coil spring for forcing the drawn first pull rope (44) to retract is fixed between the transmission pipe (41) and the vertical rod (14).

5. The modular sofa of claim 1, wherein: flexible post (22) are including lower post (221) and cup joint in last post (222) of lower post (221), be fixed with two arch (223) on the outer wall of last post (222), the inner wall of butt joint hole (11) is equipped with and supplies protruding (223) lead spiral groove (111) of scarf joint that slides, lead spiral groove (111) including playing in butt joint hole (11) opening and to the terminal horizontal segment of the spiral section of groove bottom spiral extension and connection spiral section, wherein the horizontal segment extends along the circumference of butt joint hole (11), the intracavity internal fixation of last post (222) has interior pole (224), wire drawing (23) are around interior pole (224).

6. The modular sofa of claim 5, wherein: the lateral wall of base plate (21) is provided with along length direction's first spout (211), control end (24) slide and connect in first spout (211), wire drawing (23) are worn out from the one end of first spout (211), be provided with the second magnetism unit of attracting each other between the other end lateral wall of first spout (211) and control end (24).

7. The modular sofa of claim 1, wherein: base plate (21) include cell board (212) of two symmetries and connect connecting rod (213) between cell board (212), the both ends of connecting rod (213) are provided with spacing wing (214) along circumference salient, be provided with on cell board (212) and supply second spout (216) of connecting rod (213) scarf joint and multichannel along connecting rod (213) length direction arrange supply spacing wing (214) inlay card first spacing groove (215).

8. The modular sofa of claim 7, wherein: the outer wall of the limiting wing (214) is provided with a limiting clamping protrusion (25), and the inner wall of the first limiting groove (215) is provided with a second limiting clamping groove matched with the limiting clamping protrusion (25); the limiting clamping protrusion (25) comprises a guide convex rib (251) and a limiting convex rib (252) which are perpendicular to each other, wherein the guide convex rib (251) is positioned on one side, close to the groove bottom of the first limiting groove (215), of the limiting convex rib (252), and the protruding heights of the guide convex rib (251) and the limiting convex rib (252) relative to the surface of the limiting wing (214) are gradually reduced from the intersection position of the guide convex rib and the limiting convex rib to the respective end part; the top of the intersecting end of the guide convex rib (251) and the limit convex rib (252) is flush with the top of the limit convex rib (252), and one side of the limit convex rib (252) facing the guide convex rib (251) is a guide surface.

9. The modular sofa of claim 7, wherein: the connecting rod (213) comprises two unit rods (2131) respectively connected to the unit plates (212) and an adjusting sleeve (2132) connected between the unit rods (2131), and the adjusting sleeve (2132) is sleeved on the unit rods (2131) and is in threaded connection with the unit rods (2131).

10. The modular sofa of claim 7, wherein: two be provided with case seat (5) that cover switching subassembly (2) between sofa unit (1), case seat (5) inside cavity is and is provided with the garbage bin, the top of case seat (5) is fixed with branch (6), and the top of branch (6) is fixed with puts thing board (7).