阅读说明：本技术 转角沙发 (Corner sofa ) 是由 杨锦章 吴乐乐 张艳召 陈少彬 张军明 于 2021-01-14 设计创作，主要内容包括：本发明公开了一种转角沙发,包括靠背组件和底座组件,该靠背组件包括靠背板和靠背连接结构,该靠背连接结构包括横梁、与横梁相垂直连接的纵梁以及分别与横梁两端相连接的两个侧板,该横梁和纵梁均为金属件,该侧板为一体成型的注塑件；该纵梁、侧板后侧以及靠背板均设有靠背安装孔,螺丝螺母组件通过靠背安装孔将靠背板与靠背连接结构连接在一起；该侧板还设有用于连接底座组件的插接件。本发明的转角沙发,该靠背板与靠背连接结构、该靠背连接结构与底座组件之间均为可拆卸连接,使得转角沙发组装简单,方便维修。另外,该靠背连接结构中的横梁和纵梁为金属件,该侧板为注塑件,在保证一定支撑强度的前提下,降低了成本和重量,方便运输。(The invention discloses a corner sofa, which comprises a backrest assembly and a base assembly, wherein the backrest assembly comprises a backrest plate and a backrest connecting structure, the backrest connecting structure comprises a cross beam, a longitudinal beam vertically connected with the cross beam and two side plates respectively connected with two ends of the cross beam, the cross beam and the longitudinal beam are both metal pieces, and the side plates are integrally formed injection molding pieces; the longitudinal beam, the rear side of the side plate and the backrest plate are respectively provided with a backrest mounting hole, and the screw nut assembly connects the backrest plate and the backrest connecting structure together through the backrest mounting holes; the side plate is also provided with a plug connector for connecting the base component. According to the corner sofa, the backrest plate and the backrest connecting structure and the base assembly are detachably connected, so that the corner sofa is simple to assemble and convenient to maintain. In addition, the cross beam and the longitudinal beam in the backrest connecting structure are metal pieces, the side plates are injection-molded pieces, and on the premise of ensuring certain supporting strength, the cost and the weight are reduced, and the transportation is convenient.)

1. Corner sofa, its characterized in that includes back subassembly (1) and base subassembly (2), wherein:

the backrest assembly (1) comprises a backrest plate (11) and a backrest connecting structure (12), the backrest connecting structure (12) comprises a cross beam (121), a longitudinal beam (122) and two side plates (123), the longitudinal beam (122) is perpendicularly connected with the cross beam (121), the two side plates (123) are respectively connected with the two ends of the cross beam (121), the cross beam (121) and the longitudinal beam (122) are both metal pieces, and the side plates (123) are integrally formed injection molding pieces;

the longitudinal beam (122), the rear side of the side plate (123) and the backrest plate (11) are respectively provided with a backrest mounting hole (13), and the screw nut assembly connects the backrest plate (11) and the backrest connecting structure (12) together through the backrest mounting holes (13);

and the inner side of the lower end of the side plate (123) is provided with a plug connector (14) used for connecting the base component (2).

2. The corner sofa of claim 1, wherein the base assembly (2) comprises two first supporting members (21) symmetrically arranged, a second supporting member (22) connected to two opposite ends of the two first supporting members (21), and a supporting beam (23) having one end connected to the second supporting member (22) and the other end connected to two opposite ends of the two first supporting members (21), wherein:

the first supporting piece (21), the second supporting piece (22) and the supporting beam (23) are all made by adopting a blow molding process;

the two first supporting pieces (21) and the second supporting piece (22) jointly form a fan-shaped supporting frame;

and two ends of the first supporting piece (21) are respectively provided with an inserting strip (24) matched with the inserting piece (14).

3. The corner sofa of claim 2, wherein the plug member (14) comprises a guide rail (141) and a pressing spring (142), the pressing spring (142) is composed of an n-shaped portion (1421) and a bent portion (1422), the n-shaped portion (1421) comprises an inner extending end and an outer extending end, the bent portion (1422) is disposed on the outer extending end of the n-shaped portion (1421), and one end of the guide rail (141) extends into the cavity of the n-shaped portion (1421);

the inserting strip (24) is provided with a clamping hole (241) which is clamped with the bending part (1422) of the pressing spring piece (142).

4. The corner sofa of claim 1, wherein the backrest assembly (1) further comprises a plurality of first springs (15), wherein:

a plurality of hook mounting holes (1211) are formed in the cross beam (121), and the hook mounting holes (1211) are arranged at intervals along the length direction of the cross beam (121); a first hook (16) is arranged in each hook mounting hole (1211);

the front part of the upper end of the backrest plate (11) is provided with a corresponding second hook (111) corresponding to the first hook (16);

one end of the first spring (15) is hung on a first hook (16) of the cross beam (121), and the other end of the first spring is hung on a second hook (111) corresponding to the backboard (11).

5. The corner sofa of claim 4, wherein the first hook (16) comprises a hook body (161) and a T-shaped protrusion (162), the hook body (161) is provided with a spring receiving groove (1611), the T-shaped protrusion (162) passes through a hook mounting hole (1211) and is clamped and fixed, an arc structure (163) is arranged between the hook body (161) and the T-shaped protrusion (162), and the hook mounting hole (1211) is provided with an arc hole (12111) matched with the arc structure (163); one end of the first spring (15) is hung in the spring accommodating groove (1611);

the second hook (111) and the backboard (11) are integrally formed by blow molding.

6. The corner sofa according to claim 2, wherein the first supporting members (21) are arc-shaped, and the two first supporting members (21) form a rear arc border of the supporting frame; the second supporting piece (22) comprises a horizontal part (221) and inclined parts (222) symmetrically arranged on two sides of the horizontal part (221), the horizontal part (221) forms a front frame of the supporting frame, and the two inclined parts (222) respectively form left and right side frames of the supporting frame;

two ends of the first supporting pieces (21) which are opposite to each other are respectively connected with one ends of the two inclined parts (222), one end of the supporting beam (23) is connected with two opposite ends of the first supporting pieces (21), and the other end of the supporting beam (23) is connected with the horizontal part (221).

7. The corner sofa of claim 6, wherein the base assembly (2) further comprises a plurality of second springs (25), wherein:

a plurality of third hooks (26) are arranged at intervals at the upper end of the first supporting piece (21) and the upper end of the horizontal part (221) of the second supporting piece (22), and the third hooks (26) on the first supporting piece (21) are arranged corresponding to the third hooks (26) on the second supporting piece (22); one end of the second spring (25) is hung on the third hook (26) of the first supporting piece (21), and the other end of the second spring is hung on the corresponding third hook (26) on the horizontal part (221) of the second supporting piece (22).

8. The corner sofa of claim 7, wherein the third hook (26) is an injection-molded part and is blow-molded integrally with the first and second supports (21, 22).

9. The corner sofa of claim 1, wherein the lower end of the cross beam (121) is provided with a plurality of anti-falling projections (1212) at intervals along the length direction thereof.

10. The corner sofa of claim 1, wherein the left and right sides of the upper end of the back board (11) are provided with anti-overturn deformation structures for limiting the side boards (123), and the lower end of the back board (11) is provided with hanging and fastening strips (112), wherein:

the anti-overturning deformation structure comprises a wedge-shaped concave part (1131) and a wedge-shaped convex part (1132), the upper end of the side plate (123) is placed in the wedge-shaped concave part (1131), and the side surface of the side plate (123) is abutted to the wedge-shaped convex part (1132);

the tail end of the hanging strip (112) is provided with an anti-drop strip (1121) with a water drop-shaped cross section.

Technical Field

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

Background

The corner sofa is an important part of the family life of people, and is a combined sofa which is generally placed at a corner or a turning place and enables the inner space to be attractive. The corner combined sofa has various combination modes, and the corner combined sofa can be combined randomly according to the position and the size in various common modes such as single-person position, double-person position, high-ranked imperial concubine bed, single chair and the like.

The backrest and the base of the existing corner sofa are usually integrally formed, the backrest and the base cannot be detached, and the volume and the weight of the sofa are usually large and heavy, so that inconvenience is brought to carrying of the corner sofa, and the transportation cost is increased. In addition, the existing corner sofa backrest and the base are troublesome to assemble, high in cost, labor-consuming, difficult to maintain and have great limitations.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a corner sofa.

The technical scheme adopted by the invention for solving the problems is as follows:

the invention provides a corner sofa, which comprises a backrest component and a base component, wherein:

the backrest assembly comprises a backrest plate and a backrest connecting structure, the backrest connecting structure comprises a cross beam, a longitudinal beam and two side plates, the longitudinal beam is perpendicularly connected with the cross beam, the two side plates are respectively connected with the two ends of the cross beam, the cross beam and the longitudinal beam are both metal pieces, and the side plates are integrally formed injection molding pieces;

the longitudinal beam, the rear side of the side plate and the backrest plate are respectively provided with a backrest mounting hole, and the screw nut assembly connects the backrest plate and the backrest connecting structure together through the backrest mounting holes;

and the inner side of the lower end of the side plate is provided with a plug connector used for connecting the base component.

According to the corner sofa, the backrest plate and the backrest connecting structure and the base assembly are detachably connected, so that the corner sofa is simple to assemble and convenient to maintain. In addition, the cross beam and the longitudinal beam in the backrest connecting structure are metal pieces, the side plates are injection-molded pieces, and on the premise of ensuring certain supporting strength, the cost and the weight are reduced, and the transportation is convenient.

Further, the base subassembly includes two first support pieces that the symmetry set up, respectively with two second support piece and one end that first support piece carried on the back both ends mutually are connected with the second support piece is connected, the other end and two a supporting beam that the relative both ends of first support piece are connected, wherein:

the first supporting piece, the second supporting piece and the supporting beam are all manufactured by adopting a blow molding process;

the two first supporting pieces and the second supporting piece jointly form a fan-shaped supporting frame;

and the two ends of the first supporting piece are respectively provided with an inserting strip matched with the plug connector.

Therefore, the supporting frame is formed by connecting the first supporting piece, the second supporting piece and the supporting beam, the assembly is simple, and the maintenance and the replacement are convenient. In addition, the first supporting piece, the second supporting piece and the supporting beam are all made by adopting a blow molding process, so that the cost and the weight are reduced and the transportation is convenient on the premise of ensuring certain supporting strength.

Furthermore, the plug connector comprises a guide rail and a pressing elastic sheet, the pressing elastic sheet consists of an n-shaped part and a bent part, the n-shaped part comprises an inner extending end and an outer extending end, the bent part is arranged on the outer extending end of the n-shaped part, and one end of the guide rail extends into the inner cavity of the n-shaped part;

the inserting strip is provided with a clamping hole which is clamped with the bending part of the compression spring piece.

From this, can realize dismantling between back connection structure and the base subassembly through setting up the plug connector and be connected, after the cutting on the base subassembly inserts the guide rail, its kink that compresses tightly on the shell fragment can with the joint hole joint on the cutting to realize firm connection between the two.

Further, the backrest assembly further comprises a plurality of first springs, wherein:

the beam is provided with a plurality of hook mounting holes which are arranged at intervals along the length direction of the beam; a first hook is arranged in each hook mounting hole;

the front part of the upper end of the backrest plate is provided with a corresponding second hook corresponding to the first hook;

one end of the first spring is hung on the first hook of the cross beam, and the other end of the first spring is hung on the second hook corresponding to the backboard.

Further, the first hook comprises a hook body and a T-shaped bulge, a spring accommodating groove is formed in the hook body, the T-shaped bulge penetrates through a hook mounting hole and is clamped and fixed, an arc structure is arranged between the hook body and the T-shaped bulge, and an arc hole matched with the arc structure is formed in the hook mounting hole; one end of the first spring is hung in the spring accommodating groove;

the second hook and the backrest plate are integrally formed by blow molding.

Furthermore, the first supporting pieces are arc-shaped, and the two first supporting pieces form a rear arc frame of the supporting frame; the second supporting piece comprises a horizontal part and inclined parts symmetrically arranged on two sides of the horizontal part, the horizontal part forms a front frame of the supporting frame, and the two inclined parts respectively form left and right side frames of the supporting frame;

two both ends that first support piece carried on the back mutually respectively with two the one end of slope is connected, the one end of a supporting beam with two the both ends that first support piece is relative are connected, the other end of a supporting beam with the horizontal part is connected.

Further, the base assembly further comprises a plurality of second springs, wherein:

a plurality of third hooks are arranged at intervals on the upper end of the first supporting piece and the upper end of the horizontal part of the second supporting piece, and the third hooks on the first supporting piece and the third hooks on the second supporting piece are arranged correspondingly; one end of the second spring is hung on the third hook of the first supporting piece, and the other end of the second spring is hung on the corresponding third hook on the horizontal part of the second supporting piece.

Further, the third hook is an injection molding part and is integrally blow molded with the first support part and the second support part.

Furthermore, the lower end of the cross beam is provided with a plurality of anti-falling bulges at intervals along the length direction.

From this, through set up a plurality of anticreep arch in the bottom of crossbeam, when hanging the sofa face cover in the bottom of crossbeam, this anticreep is protruding can prevent that sofa face cover from taking place to drop.

Further, the upper end left and right sides of back board is equipped with and is used for carrying out spacing anti-overturning deformation structure to the curb plate, the lower extreme of back board is provided with hangs tight batten, wherein:

the anti-overturning deformation structure comprises a wedge-shaped concave part and a wedge-shaped convex part, the upper end of the side plate is arranged in the wedge-shaped concave part, and the side surface of the side plate is abutted to the wedge-shaped convex part;

the tail end of the hanging strip is provided with an anti-drop strip with a water drop-shaped cross section.

Therefore, the anti-overturning deformation structure is arranged, so that the connection stability between the back board and the side board can be improved; the sofa cover hanging device is used for hanging the sofa cover by arranging the hanging strip, and the anti-dropping strip on the hanging strip can effectively prevent the sofa cover from dropping.

In conclusion, the corner sofa provided by the invention has the following beneficial effects:

(1) according to the corner sofa, the backrest plate and the backrest connecting structure and the base assembly are detachably connected, so that the corner sofa is simple to assemble and convenient to maintain. In addition, the cross beam and the longitudinal beam in the backrest connecting structure are metal pieces, and the side plates in the connecting structure are injection-molded pieces, so that the cost and the weight are reduced and the transportation is convenient on the premise of ensuring certain supporting strength.

(2) The corner sofa is characterized in that the supporting frame is formed by connecting the first supporting piece, the second supporting piece and the supporting beam, and the corner sofa is simple to assemble and convenient to maintain and replace. In addition, the first supporting piece, the second supporting piece and the supporting beam are all made by adopting a blow molding process, so that the cost and the weight are reduced and the transportation is convenient on the premise of ensuring certain supporting strength.

(3) According to the corner sofa, the backrest connecting structure and the base assembly can be detachably connected through the plug connectors, and after the inserting strip on the base assembly is inserted into the guide rail, the bent part on the pressing elastic piece can be clamped with the clamping hole on the inserting strip, so that firm connection between the backrest connecting structure and the base assembly is realized.

(4) According to the corner sofa, the plurality of anti-falling bulges are arranged at the bottom end of the cross beam, so that when the sofa cover is hung at the bottom end of the cross beam, the anti-falling bulges can prevent the sofa cover from falling off.

(5) According to the corner sofa, the anti-overturning deformation structure is arranged, so that the connection stability between the backrest plate and the side plate can be improved; the sofa cover hanging device is used for hanging the sofa cover by arranging the hanging strip, and the anti-dropping strip on the hanging strip can effectively prevent the sofa cover from dropping.

Drawings

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

FIG. 2 is a schematic view of the backrest assembly of the corner sofa of the present invention;

FIG. 3 is a schematic view of the back plate of the back assembly of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 3;

FIG. 5 is a schematic view of a backrest connection structure of the backrest module of the present invention;

FIG. 6 is a schematic view of a back attachment structure of the back assembly of the present invention from another perspective;

FIG. 7 is a schematic view of a side plate of the backrest connecting structure according to the present invention;

FIG. 8 is a schematic view of the structure of the insert member in the side panel according to the present invention;

FIG. 9 is a schematic structural view of the side panel of the present invention with the plug-in unit concealed;

FIG. 10 is a schematic view of the construction of the longitudinal beams of the back rest attachment structure of the present invention;

FIG. 11 is a schematic view of a cross member of the backrest connecting structure according to the present invention;

FIG. 12 is a schematic view of a first hook of the backrest connecting structure according to the present invention;

FIG. 13 is a schematic view of the bottom seat assembly of the corner sofa of the present invention;

FIG. 14 is a schematic structural view of the bottom seat assembly of the corner sofa of the present invention from another perspective;

FIG. 15 is a schematic view of a first support member of the base assembly of the present invention;

FIG. 16 is a schematic view of another perspective of the first support member of the base assembly of the present invention;

FIG. 17 is a schematic view of a second support member of the base assembly of the present invention;

FIG. 18 is a schematic structural view of a second support member of the base assembly of the present invention from another perspective;

FIG. 19 is a schematic view of the structure of the support beam of the base assembly of the present invention.

Wherein the reference numerals have the following meanings:

1. a backrest assembly; 11. a back board; 111. a second hook; 112. hanging the hanging strip tightly; 1121. anti-drop strips; 1131. a wedge-shaped recess; 1132. a wedge-shaped protrusion; 114. reinforcing the blind holes; 115. tightly hanging the mounting hole; 12. a backrest connection structure; 121. a cross beam; 1211. a hook mounting hole; 12111. a circular arc hole; 1212. the anti-drop bulge; 122. a stringer; 123. a side plate; 13. a backrest mounting hole; 14. a plug-in unit; 141. a guide rail; 142. pressing the elastic sheet; 1421. an n-shaped portion; 1422. a bending section; 15. a first spring; 16. a first hook; 161. a hook body; 1611. a spring receiving groove; 162. a T-shaped protrusion; 163. a circular arc structure; 17. a first mounting hole; 18. a second mounting hole; 19. a third mounting hole; 2. a base assembly; 21. a first support member; 22. a second support member; 221. a horizontal portion; 222. an inclined portion; 23. a support beam; 24. cutting; 241. a clamping hole; 25. a second spring; 26. a third hook; 271. hanging and buckling; 272. a slot; 28. a support leg; 291. a fourth mounting hole; 292. a fifth mounting hole; 293. and a sixth mounting hole.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1-19, the present invention provides a corner sofa, which includes a backrest assembly 1 and a base assembly 2, wherein the backrest assembly 1 includes a backrest plate 11 and a backrest connection structure 12, the backrest connection structure 12 includes a cross beam 121, a longitudinal beam 122 vertically connected to the cross beam 121, and two side plates 123 respectively connected to two ends of the cross beam 121, the longitudinal beam 122, the rear sides of the side plates 123, and the backrest plate 11 are respectively provided with backrest mounting holes 13, and the backrest plate 11 and the backrest connection structure 12 are connected together by screw nut assemblies through the backrest mounting holes 13.

Specifically, nuts are embedded in the backrest mounting holes 13 on the rear side of the side plates 123, so that the thickness and weight of the backrest plate 11 can be reduced. The inner side of the lower end of the side plate 123 and the end part of the cross beam 121 are both provided with a first mounting hole 17, and the screw and nut assembly connects the side plate 123 and the cross beam 121 together through the first mounting hole 17; third mounting holes 19 are formed in the tail ends of the longitudinal beams 122 and the middle of the cross beam 121, and the longitudinal beams 122 and the cross beam 121 are connected together through the third mounting holes 19 by screw and nut assemblies.

In this embodiment, the cross beam 121 and the longitudinal beam 122 are both metal members, and the side plate 123 is an integrally molded injection molded part; the cross-beam 121 and the longitudinal beam 122 are both U-shaped in cross-section.

Therefore, the backrest connecting structure 12 is detachably connected with the backrest plate 11, so that the assembly is simple and the maintenance is convenient. In addition, the cross beam 121 and the longitudinal beam 122 in the backrest connecting structure 12 are both metal pieces, and the side plate 123 is an injection molding piece, so that the cost and the weight are reduced and the transportation is convenient on the premise of ensuring certain supporting strength.

Referring to fig. 3, the left and right sides of the upper end of the back board 11 are provided with anti-overturning deformation structures for limiting the side board 123, each anti-overturning deformation structure includes a wedge-shaped concave portion 1131 and a wedge-shaped convex portion 1132, the upper end of the side board 123 is disposed in the wedge-shaped concave portion 1131, and the side surface of the side board 123 abuts against the wedge-shaped convex portion 1132; the lower end of the back board 11 is provided with a hanging strip 112, and the end of the hanging strip 112 is provided with an anti-drop strip 1121 with a drop-shaped cross section.

In the present embodiment, the backboard 11 is a blow-molded piece; the hanging strip 112 is arranged along the length direction of the backboard 11; the anti-slip strip 1121 is provided along the longitudinal direction of the hanger 112.

Therefore, by providing the anti-overturning deformation structure, when the side plate 123 is acted by an external force, the side plate 123 can be prevented from deforming because the upper end side surface of the side plate 123 abuts against the wedge-shaped protrusion 1132, and thus the connection stability between the back plate 11 and the side plate 123 is provided; in addition, the anti-overturning deformation structures are arranged on the left side and the right side of the upper end of the backrest plate 11, so that support parts with different sizes can be conveniently hung on the outer side of the backrest plate 11, the sofa backrest with different sizes is obtained, and the flexibility is good. In addition, by providing the hanging strip 112, when the sofa cover is hung on the backrest panel 11 and hung on the hanging strip 112, the sofa cover can cooperate with the drop-shaped anti-drop strip 1121, thereby effectively preventing the sofa cover from dropping off.

Referring to fig. 3, a plurality of reinforcing blind holes 114 and fastening mounting holes 115 are spaced in the middle of the surface of the back plate 11, and the cross section of the reinforcing blind holes 114 is gradually reduced from the outer side of the back plate 11 to the inner side of the back plate 11.

Therefore, the rigidity of the backboard 11 can be improved by arranging the reinforcing blind holes 114, and the backboard 11 is not easy to deform when being extruded by an external object; the cross section of the reinforced blind hole 114 is gradually reduced from the outer side of the backboard 11 to the inner side of the backboard 11, so that a spiral body can be formed in the cavity of the backboard 11, and the spiral body can further enhance the hardness of the backboard 11. In addition, by arranging the plurality of hanging mounting holes 115, the sofa cover and the soft sofa bag can be conveniently hung tightly, so that different appearance requirements are met.

In the present embodiment, several reinforcing blind holes 114 are arranged in a staggered manner with respect to the fastening holes 115.

Referring to fig. 7-8, the inner side of the lower end of the side plate 123 is provided with a plug connector 14 for connecting the base assembly 2, the plug connector 14 includes a guide rail 141 and a pressing elastic piece 142, the pressing elastic piece 142 is composed of an n-shaped portion 1421 and a bending portion 1422, the n-shaped portion 1421 includes an inner extending end and an outer extending end, the bending portion 1422 is disposed on the outer extending end of the n-shaped portion 1421, and one end of the guide rail 141 extends into the inner cavity of the n-shaped portion 1421.

Specifically, the inner side of the lower end of the side plate 123, the guide rail 141 and the pressing spring piece 142 are all provided with second mounting holes 18, and the screw and nut assembly connects the side plate 123 and the plug connector 14 together through the second mounting holes 18.

In this embodiment, a nut is also embedded in the second mounting hole 18 of the side plate 123. The inner side of the side plate 123 is further provided with a plurality of reinforcing ribs, so that the supporting strength of the side plate 123 can be improved.

Referring to fig. 13, the base assembly 2 is provided with a plunger 24 matching with the plug connector 14, the plunger 24 is provided with a locking hole 241, and after the plunger 24 on the base assembly 2 is inserted into the guide rail 141, the bending part 1422 on the pressing spring 142 can be locked with the locking hole 241 on the plunger 24, thereby realizing the firm connection between the two.

In this embodiment, a plurality of ribs are disposed inside the side plate 123, so that the supporting strength of the side plate 123 is improved.

Referring to fig. 2, 11 and 12, the backrest module 1 further includes a plurality of first springs 15, the cross member 121 is provided with a plurality of hook mounting holes 1211, and the hook mounting holes 1211 are spaced along the length direction of the cross member 121; a first hook 16 is arranged in each hook mounting hole 1211; the front part of the upper end of the backboard 11 is provided with a corresponding second hook 111 corresponding to the first hook 16; one end of the first spring 15 is hung on the first hook 16 of the cross beam 121, and the other end is hung on the corresponding second hook 111 of the backboard 11.

Specifically, the first hook 16 includes a hook body 161 and a T-shaped protrusion 162, the hook body 161 is provided with a spring receiving slot 1611, the T-shaped protrusion 162 passes through a hook mounting hole 1211 and is clamped and fixed, an arc structure 163 is provided between the hook body 161 and the T-shaped protrusion 162, and the hook mounting hole 1211 is provided with an arc hole 12111 matched with the arc structure 163; one end of the first spring 15 is inserted into the spring receiving groove 1611.

In this embodiment, the second hook 111 is integrally blow-molded with the backboard 11.

Therefore, when the first spring 15 needs to be installed, the T-shaped protrusion 162 on the first hook 16 firstly passes through the hook installation hole 1211, and after the first hook 16 is rotationally positioned around the arc hole 12111 until the arc structure 163 just abuts against the hook installation hole 1211, the connection between the first hook 16 and the beam 121 is realized.

In addition, a plurality of anti-falling protrusions 1212 are provided at intervals along the length direction of the lower end of the cross beam 121, and when the sofa cover is hung at the bottom end of the cross beam 121, the anti-falling protrusions 1212 can prevent the sofa cover from falling off.

Referring to fig. 13-19, the base assembly 2 includes two first supporting members 21 symmetrically disposed, a second supporting member 22 connected to two opposite ends of the two first supporting members 21, and a supporting beam 23 having one end connected to the second supporting member 22 and the other end connected to two opposite ends of the two first supporting members 21, wherein the two first supporting members 21 and the second supporting member 22 form a fan-shaped supporting frame.

Specifically, the first supporting members 21 are arc-shaped, and the two first supporting members 21 form a rear arc frame of the supporting frame; the second supporting member 22 includes a horizontal portion 221 and two inclined portions 222 symmetrically disposed at both sides of the horizontal portion 221, the horizontal portion 221 forms a front frame of the supporting frame, and the two inclined portions 222 respectively form left and right side frames of the supporting frame; the end of the inclined portion 222 is protruded with a mounting plate at a middle position so as to partition the end of the inclined portion 222 into two symmetrical mounting grooves, thereby facilitating the left and right universal mounting of the second supporting member 22. Two ends of the two first supporting members 21 opposite to each other are respectively connected with the mounting plates on the two inclined portions 222; the supporting beam 23 is composed of a round platform body with a round cross section and a thin end and a thick end and a bending mounting bulge arranged at the thin end of the round platform body, and two opposite ends of the two first supporting pieces 21 are lapped on the mounting bulge and connected with the mounting bulge; the horizontal portion 221 is provided with a circular recess into which the other end of the support beam 23 is inserted and coupled with the horizontal portion 221.

In the present embodiment, the first supporting member 21, the second supporting member 22 and the supporting beam 23 are all made by a blow molding process; the plug-in unit 14 is provided at both left and right ends of the first support member 21. The mounting plates of the two opposite ends of the two first supporting pieces 21 and the inclined part 222 are respectively provided with a fourth mounting hole 291, and the first supporting piece 21 and the second supporting piece 22 are connected together through the fourth mounting holes 291 by a screw and nut assembly; fifth mounting holes 292 are formed in two opposite ends of the mounting protrusion of the supporting beam 23 and the two first supporting members 21, sixth mounting holes 293 are formed in the other end of the supporting beam 23 and the circular cavities of the horizontal portion 221, and the supporting beam 23, the first supporting members 21 and the second supporting members 22 are connected together through the fifth mounting holes 292 and the sixth mounting holes 293 by screw nut assemblies.

Therefore, the supporting frame is formed by connecting the first supporting piece 21, the second supporting piece 22 and the supporting beam 23, the assembly is simple, and the maintenance and the replacement are convenient. In addition, the first supporting member 21, the second supporting member 22 and the supporting beam 23 are all made by a blow molding process, so that the cost and the weight are reduced and the transportation is convenient on the premise of ensuring a certain supporting strength.

Referring to fig. 13, the base assembly 2 further includes a plurality of second springs 25, a plurality of third hooks 26 are disposed at intervals on the upper end of the first supporting member 21 and the upper end of the horizontal portion 221 of the second supporting member 22, and the third hooks 26 on the first supporting member 21 and the third hooks 26 on the second supporting member 22 are disposed correspondingly. One end of the second spring 25 is hung on the third hook 26 of the first supporter 21, and the other end is hung on the corresponding third hook 26 of the horizontal portion 221 of the second supporter 22.

In this embodiment, the third hook 26 is an injection molded part, and is integrally blow molded with the first support 21 and the second support 22.

Referring to fig. 17, the inclined portion 222 at one side of the second supporting member 22 is provided with a hanging buckle 271 for connecting with the base of the sofa at one side, and a nut is embedded in the hanging buckle 271; the other side inclined portion 222 is provided with an insertion groove 272 for connecting the other side sofa base.

Therefore, when the corner sofa needs to be assembled, the insertion groove 272 on the sofa base close to the inclined part 222 on one side is aligned with the hanging buckle 271 on the inclined part 222, and then the insertion pin is inserted into the insertion groove 272 and is in threaded connection with the nut in the hanging buckle 271, so that the assembly of the sofa base and the corner sofa can be realized; then, the insertion groove 272 on the other inclined part 222 is aligned with the hanging buckle 271 on the other sofa base close to the one inclined part 222, and then the insertion pin is inserted into the insertion groove 272 and is in threaded connection with the nut in the hanging buckle 271, so that the assembly of the corner sofa and the other sofa base can be realized.

In addition, the bottom of the first supporting member 21 and the bottom of the second supporting member 22 are provided with a plurality of legs 28 to provide a supporting force to the supporting frame.

In conclusion, the corner sofa provided by the invention has the following beneficial effects:

in the corner sofa of the invention, the backrest plate 11 and the backrest connecting structure 12, and the backrest connecting structure 12 and the base component 2 are detachably connected, so that the corner sofa is simple to assemble and convenient to maintain. In addition, the cross beam 121 and the longitudinal beam 122 in the backrest connecting structure 12 are metal members, and the side plate 123 is an injection molding member, so that the cost and the weight are reduced and the transportation is convenient on the premise of ensuring certain supporting strength.

The support frame of the corner sofa of the invention is formed by connecting the first support piece 21, the second support piece 22 and the support beam 23, and has simple assembly and convenient maintenance and replacement. In addition, the first supporting member 21, the second supporting member 22 and the supporting beam 23 are all made by a blow molding process, so that the cost and the weight are reduced and the transportation is convenient on the premise of ensuring a certain supporting strength.

Thirdly, the corner sofa of the invention can realize the detachable connection between the backrest connection structure 12 and the base assembly 2 by arranging the plug connector 14, and after the inserting strip 24 on the base assembly 2 is inserted into the guide rail 141, the bending part 1422 on the pressing elastic piece 142 can be clamped with the clamping hole 241 on the inserting strip 24, thereby realizing the firm connection between the two.

In the corner sofa of the invention, (IV) the bottom end of the cross beam 121 is provided with the plurality of anti-falling protrusions 1212, so that when the sofa cover is hung at the bottom end of the cross beam 121, the anti-falling protrusions 1212 can prevent the sofa cover from falling off.

The corner sofa of the invention can improve the connection stability between the back board 11 and the side board 123 by arranging the anti-overturn deformation structure; the hanging strip 112 can be used for hanging the sofa cover, and the anti-drop strip 1121 on the hanging strip 112 can effectively prevent the sofa cover from dropping.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.