CN214963978U

CN214963978U - Sofa backrest plug-in connection assembly

Info

Publication number: CN214963978U
Application number: CN202023299438.4U
Authority: CN
Inventors: 李新伟
Original assignee: Anji Oufeng Leisure Home Products Co ltd
Current assignee: Anji Oufeng Leisure Home Products Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-12-03
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a sofa backrest plug coupling assembling, relate to the sofa field of making, including installation piece and connection rotating part, connect the rotating part include first connecting block and through hinge post and first connecting block articulated second connecting block, first connecting block tip is provided with the picture peg, installation piece tip is provided with the slot that is used for connecting installation piece and picture peg, the slot top is provided with the card that is used for with the picture peg joint, the picture peg tip is provided with the card hole that is used for with the card joint, installation piece bottom surface is provided with the first mounting hole that is used for connecting the sofa backrest, second connecting block tip is provided with the fourth mounting hole that is used for connecting the sofa, be provided with the gear strip that is used for adjusting first connecting block and second connecting block contained angle between first connecting block and the second connecting block. The utility model relates to a can make mode dismouting that back and sofa can pass through the plug, convenient transportation and equipment, contained angle between adjustable back and the sofa satisfies the sofa back plug coupling assembling of travelling comfort demand.

Description

Sofa backrest plug-in connection assembly

Technical Field

The utility model relates to the technical field of sofa manufacturing,

especially, the utility model relates to a sofa backrest plug coupling assembling.

Background

Sofas are widely used in house upholstered garments as a piece of furniture, are usually manufactured and sold as an integral, indivisible unit. The prior art sofas are generally not removable and not perfectly assembled by the average consumer after removal, and therefore are generally handled as a whole by trucks or vans after being manufactured by a factory. The size of the sofa is large for the corridor and the door, which brings great inconvenience to the transportation. More seriously, the sofa is easy to collide with the surface of the sofa when being transported in a limited space, and the sofa is high in manufacturing cost, so that a factory often wraps a layer of anti-collision protection material, such as foam paper, foam plastic and the like, on the surface of the sofa, but the size of the sofa is further enlarged undoubtedly, and the transportation difficulty is increased. Therefore, there is a sofa with a detachable backrest, such as a detachable sofa described in chinese utility model No. CN209450169U, which includes a seat and a backrest; the seat comprises a seat support and a cushion plate fixedly connected to the seat support; the seat support is formed by butting and fixing a plurality of mounting pipes; the backrest comprises a backrest bracket and a backrest cushion fixedly connected to the backrest bracket; the backrest bracket comprises at least two support pipes arranged in parallel and a reinforcing rod vertically and fixedly connected with all the support pipes; the backrest cushion is fixedly connected to the supporting tube, and the lower end of the supporting tube exceeds the lower surface of the backrest cushion; mounting holes corresponding to the number of the supporting tubes are formed in the mounting tube in a penetrating manner; the mounting hole is formed in a mounting pipe, corresponding to the backrest support, on the seat support.

Above-mentioned utility model has the effect that lets the sofa dismouting of being convenient for and convenient transportation, but can not satisfy the travelling comfort demand of back angle modulation.

For satisfying consumer's travelling comfort's demand, the adjustable sofa of back has still appeared, like the sofa that chinese utility model patent number introduced for CN203073821U back pad can be adjusted, belongs to furniture manufacturing technical field, fill up including cushion and back, the cushion with be provided with coupling mechanism between the back pad, coupling mechanism is including setting up fixing base, setting on the cushion are in connecting seat on the back pad and handle the fixing base with the connecting piece that the connecting seat couples together.

Above-mentioned utility model patent satisfies the travelling comfort demand of back angle modulation, but can not satisfy the effect that lets the sofa be convenient for dismouting and convenient transportation.

Therefore, in order to solve the above problems, it is necessary to design a plug-in connection assembly for a sofa backrest.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sofa backrest plug coupling assembling installs between sofa and sofa backrest, satisfies the convenience of transportation and installation, and adjustable sofa and backrest contained angle satisfy the sofa backrest plug coupling assembling of the travelling comfort of sofa simultaneously, for reaching above-mentioned purpose, the utility model discloses a following technical scheme can realize:

sofa back plug coupling assembling, including installation piece and connection rotating part, connect the rotating part include first connecting block and through the hinge post with first connecting block articulated second connecting block, first connecting block tip is provided with the picture peg, installation piece tip is provided with the slot that is used for connecting installation piece and picture peg, the slot top is provided with the card that is used for with the picture peg joint, the picture peg tip is provided with the card hole that is used for with the card joint, installation piece bottom surface is provided with the first mounting hole that is used for connecting the sofa back, second connecting block tip is provided with the fourth mounting hole that is used for connecting the sofa, be provided with the gear strip that is used for adjusting first connecting block and second connecting block contained angle between first connecting block and the second connecting block.

As the utility model discloses a preferred, the tip that the picture peg is close to first linkage block still is provided with the second mounting hole, the tip that first linkage block is close to the picture peg still is provided with the third mounting hole, second mounting hole and third mounting hole pass through bolt, one of them kind of connection of rivet.

As the utility model discloses a preferred, the tip that the gear strip is close to first connecting block is provided with the extension spring connecting hole, extending from the tip that is close to the extension spring connecting hole to keeping away from the extension spring connecting hole on the gear strip and having set gradually fulcrum hole, initial gear portion, first plectrum connecting hole, first gear portion, second plectrum connecting hole, second gear portion and the gear portion that resets, and initial gear portion, first gear portion, second gear portion and the gear portion that resets all are on the same limit of gear strip.

As the utility model discloses a preferred, still be provided with first fixed block and extension spring post on the first connecting block, be provided with the pillar between first fixed block and the first connecting block.

As the utility model discloses a preferred, still be provided with the second fixed block on the second connecting block, still be provided with the gear post between second fixed block and the second connecting block.

As the utility model discloses a preferred, the gear strip is articulated with first connecting block through the connection of fulcrum hole and pillar.

As the utility model discloses a preferred, the extension spring hole passes through the extension spring with the extension spring post and is connected.

As the utility model discloses a preferred, the gear strip has partly to be located between second connecting block, second fixed block and the gear post, and has the limit and the gear post laminating of initial gear portion on the gear strip.

As the utility model discloses a preferred, the articulated first gear plectrum that is provided with on the first plectrum connecting hole, the articulated second gear plectrum that is provided with on the second plectrum connecting hole.

As the utility model discloses a preferred, the cross-section of gear strip is the U-shaped.

The utility model discloses sofa back plug coupling assembling beneficial effect lies in: the sofa and the backrest are connected by the sofa backrest plug-in connection assembly, so that the backrest and the sofa can be assembled and disassembled in a plug-in mode, the transportation and the assembly are convenient, the included angle between the backrest and the sofa can be adjusted, and the requirement for comfort is met.

Because sofa back plug coupling assembling, including installation piece and connection rotating part, the installation piece is connected with sofa back, and rotatory connecting portion is connected with the sofa, is provided with the picture peg on the rotatory connecting portion, has the slot that can peg graft with the picture peg on the installation piece, and picture peg and slot connection are firm convenient, and sofa back accessible installation piece and the insertion of picture peg come with sofa plug installation, make sofa and back dismantled and assembled.

Because the slot top is provided with the card that is used for with the picture peg joint, the picture peg tip is provided with the card hole that is used for with the card joint, comes fixed mounting piece and picture peg through the connection in card and card hole, prevents that the inserted sheet from sliding in the slot, simple to operate and installation are firm.

Because the connecting and rotating part comprises a first connecting block and a second connecting block hinged with the first connecting block through a hinge column, a gear strip for adjusting the included angle of the first connecting block and the second connecting block is arranged between the first connecting block and the second connecting block, a fulcrum hole, an initial gear part, a first plectrum connecting hole, a first gear part, a second plectrum connecting hole, a second gear part and a reset gear part are sequentially arranged on the gear strip from the part close to the tension spring connecting hole to the part far away from the tension spring connecting hole in an extending way, a first gear plectrum is hinged on the first plectrum connecting hole, a second gear plectrum is hinged on the second plectrum connecting hole, a second fixing block is further arranged on the second connecting block, a gear column is further arranged between the second fixing block and the second connecting block, and the angles of the first connecting block and the second connecting block are adjusted through the cooperation of the gear column and different gear parts on the gear strip, thereby adjusting the included angle between the sofa and the backrest of the sofa and meeting the requirement of comfort level of consumers.

An object of the utility model is to provide a can make mode dismouting that back and sofa can pass through the plug, convenient transportation and equipment, contained angle between adjustable back and the sofa satisfies the sofa back plug coupling assembling of travelling comfort demand.

Drawings

Fig. 1 is a schematic perspective view of the sofa backrest plug-in connection assembly of the present invention;

fig. 2 is a sectional view of the sofa backrest plug-in connection assembly of the present invention;

fig. 3 is a schematic structural view of a gear strip of the sofa backrest plug-in connection assembly of the present invention;

fig. 4 is a schematic perspective view of the mounting block of the sofa backrest plug-in connection assembly of the present invention;

fig. 5 is a sectional view of the mounting block of the sofa backrest plug-in connection assembly of the present invention;

fig. 6 is a plug board diagram of the sofa backrest plug-in connection assembly of the present invention;

fig. 7 is a schematic view of a first gear state of the sofa backrest plug-in connection assembly of the present invention;

wherein 1, mounting blocks; 11. a first mounting hole; 12. a card; 13. a slot; 2. inserting plates; 21. a second mounting hole; 22. a clamping hole; 3. connecting the rotating part; 31. a first connection block; 311. a first fixed block; 312. a pillar; 313. a tension spring; 314. a tension spring column; 315. a third mounting hole; 32. a second connecting block; 321. a second fixed block; 322. a gear post; 323. a fourth mounting hole; 33. a hinged column; 4. a gear bar; 41. an initial gear section; 42. a first gear portion; 421. a first gear shifting piece; 43. a second gear portion; 431. a second gear shifting piece; 44. a reset gear section; 45. a tension spring connecting hole; 46. a fulcrum hole; 47. a first plectrum connecting hole; 48. a second plectrum connecting hole;

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the modules and structures set forth in these embodiments does not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and systems known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

The first embodiment is as follows: as shown in fig. 1 to 7, which are only one embodiment of the present invention, the sofa backrest plug-in connection assembly, comprises a mounting block 1 and a connection rotation part 3, the joint rotation part 3 includes a first joint block 31 and a second joint block 32 hinged to the first joint block 31 by a hinge column 33, the end part of the first connecting block 31 is provided with an inserting plate 2, the end part of the mounting block 1 is provided with a slot 13 for connecting the mounting block 1 and the inserting plate 2, a card 12 clamped with the inserting plate 2 is arranged above the inserting groove 13, a clamping hole 22 clamped with the card 12 is arranged at the end part of the inserting plate 2, the bottom surface of the mounting block 1 is provided with a first mounting hole 11 for connecting with a sofa backrest, the end of the second connecting block 32 is provided with a fourth mounting hole 323 for connecting with a sofa, a gear bar 4 used for adjusting the included angle between the first connecting block 31 and the second connecting block 32 is arranged between the first connecting block 31 and the second connecting block 32.

The first mounting holes 11 are connected with the bottoms of the two sides of the sofa backrest through screws, and the mounting blocks are fixed on the sofa backrest; the fourth mounting holes 323 are connected with the rear parts of the two sides of the sofa backrest through screws, and the second connecting blocks 32 in the connecting and rotating part 3 are fixed at the rear parts of the two sides of the sofa; the first connecting block 31 is hinged to the second connecting block 32 through a hinge column 33, a second mounting hole 21 is further formed in the end portion, close to the first connecting block 31, of the insertion plate 2, a third mounting hole 315 is further formed in the end portion, close to the insertion plate 2, of the first connecting block 31, and the second mounting hole 21 and the third mounting hole 315 are connected through bolts, rivets or welding. The bottom plate of the mounting block 1 is provided with a slot 13, and the inserting plate 2 can be inserted into the slot 13 to be connected with the mounting block 1. The card 12 used for being clamped with the inserting plate 2 is arranged above the inserting groove 13, the end part of the inserting plate 2 is provided with a clamping hole 22 used for being clamped with the card 12, the card 12 is an elastic part, when the inserting plate 2 is inserted into the inserting groove 13, the card 12 is jacked up by the inserting plate 2, when the inserting plate 2 is inserted into the bottom of the inserting groove 13 to complete inserting action, the card 12 is elastically reset and clamped into the clamping hole 22 of the inserting plate 2 to fix the inserting plate 2 and the mounting block 1, and the inserting plate 2 is prevented from sliding in the inserting groove 13. The sofa and the sofa backrest are convenient to install, stable in connection, firm in installation and free of looseness.

The end of the gear bar 4 close to the first connecting block 31 is provided with a tension spring connecting hole 45, the gear bar 4 is provided with a fulcrum hole 46, an initial gear portion 41, a first plectrum connecting hole 47, a first gear portion 42, a second plectrum connecting hole 48, a second gear portion 43 and a reset gear portion 44 in sequence from the end close to the tension spring connecting hole 45 to the end far away from the tension spring connecting hole 45, and the initial gear portion 41, the first gear portion 42, the second gear portion 43 and the reset gear portion 44 are all on the same side of the gear bar 4. The first shifting connection hole 47 is hinged with a first gear shifting piece 421, and the second shifting piece connection hole 48 is hinged with a second gear shifting piece 431. The section of gear shift position strip 4 is U-shaped, and first gear shift plate 421 and second gear shift plate 431 are partially located in gear shift position strip 4. The first connecting block 31 is further provided with a first fixing block 311 and a tension spring post 314, a support post 312 is arranged between the first fixing block 311 and the first connecting block 31, the second connecting block 32 is further provided with a second fixing block 321, and a gear post 322 is arranged between the second fixing block 321 and the second connecting block 32. The gear shift position strip 4 is hinged and fixed with the first connecting block 31 through the hinge joint of the fulcrum hole 46 and the pillar 312. One end of the tension spring 313 is connected with the tension spring column 314, the other end of the tension spring 313 is connected with the tension spring hole 45 on the gear shift bar 4, and the edges of the initial gear part 41, the first gear part 42, the second gear part 43 and the reset gear part 44 on the gear shift bar 4 are always attached to the gear shift column 322 through the tension force of the tension spring 313 on the gear shift bar 4. First gear shifting piece 421 is hinged to first shifting connection hole 47, and second gear shifting piece 431 is hinged to second shifting piece connection hole 48.

When the gear is adjusted, when the gear post 322 is located at the initial gear portion 41, the sofa backrest and the sofa cushion surface are unfolded to be a plane; when the sofa backrest is rotated, that is, the mounting block 1 is rotated, the mounting block 1 drives the inserting plate 2 and the first connecting block 31 to rotate clockwise in fig. 2 around the hinge post 33, the gear bar 4 is pulled to move, the gear post 322 slides from the initial gear portion 41 to the first gear portion 42 along the edge of the gear bar 4, the gear post 322 pushes the first gear shifting piece 421 open, the first gear shifting piece 421 rotates counterclockwise, and then reaches the first gear portion 42, and at this time, a certain included angle is formed between the sofa backrest and the seat cushion surface. In the same manner as the above-mentioned step of rotating the sofa backrest, the position post 322 can reach the second position portion 43, so that the angle between the sofa backrest and the sofa seat pad surface is reduced. When the sofa backrest and the sofa cushion surface need to be unfolded to be flat, the sofa backrest continues to be rotated, that is, the mounting block 1 drives the inserting plate 2 and the first connecting block 31 to rotate clockwise in fig. 7 around the hinge post 33, the gear bar 4 is pulled to move, the gear post 322 slides to the reset gear portion 44, the sofa backrest, that is, the first connecting block 31, rotates anticlockwise, so that the gear post 322 slides from the reset gear portion 44 to the initial gear portion 41, in the process, when passing through the second gear portion 43, the second gear shifting piece 431 is pushed to rotate clockwise, so that the second gear shifting piece 431 fills up the gap of the second gear portion 43, the gear post 322 is prevented from entering the second gear portion 43, and then the first connecting block 31 continues to rotate, so that the gear post 322 passes through the second gear portion 43 along the edge of the second gear shifting piece 431; the first connecting block 31 is rotated continuously, and the above steps are performed to make the gear post 322 pass through the first gear portion 42 and reach the initial gear portion 41, so that the sofa backrest and the sofa cushion surface are returned to the unfolded and flat state, and the angle adjustment is completed. So as to achieve the purpose of adjusting the angle between the sofa backrest and the sofa and meet the requirement of comfort.

The utility model discloses sofa back plug coupling assembling can make back and sofa can pass through the mode dismouting of plug, convenient transportation and equipment, and the travelling comfort demand is satisfied to the contained angle between adjustable back and the sofa.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. Sofa back plug coupling assembling, its characterized in that: including installation piece (1) and connection rotating part (3), connect rotating part (3) including first connecting block (31) and through articulated post (33) with first connecting block (31) articulated second connecting block (32), first connecting block (31) tip is provided with picture peg (2), installation piece (1) tip is provided with slot (13) that are used for connecting installation piece (1) and picture peg (2), slot (13) top is provided with card (12) that are used for with picture peg (2) joint, picture peg (2) tip is provided with card hole (22) that are used for with card (12) joint, installation piece (1) bottom surface is provided with first mounting hole (11) that are used for connecting the sofa back, second connecting block (32) tip is provided with fourth mounting hole (323) that are used for connecting the sofa, be provided with between first connecting block (31) and the second connecting block (32) and be used for adjusting first connecting block (31) and second connecting block (32) (32) A gear strip (4) with an included angle.

2. The sofa backrest plugging and unplugging assembly of claim 1, wherein: the end portion of the inserting plate (2) close to the first connecting block (31) is further provided with a second mounting hole (21), the end portion of the first connecting block (31) close to the inserting plate (2) is further provided with a third mounting hole (315), and the second mounting hole (21) and the third mounting hole (315) are connected through one of bolts and rivets.

3. The sofa backrest plugging and unplugging assembly of claim 1, wherein: gear strip (4) are close to the tip of first connecting block (31) and are provided with extension spring connecting hole (45), gear strip (4) go up from being close to extension spring connecting hole (45) to the tip extension of keeping away from extension spring connecting hole (45) and have set gradually fulcrum hole (46), initial gear portion (41), first plectrum connecting hole (47), first gear portion (42), second plectrum connecting hole (48), second gear portion (43) and gear portion (44) that resets, and initial gear portion (41), first gear portion (42), second gear portion (43) and gear portion (44) that resets all are on the same side of gear strip (4).

4. The sofa backrest plugging and unplugging assembly of claim 3, wherein: the first connecting block (31) is further provided with a first fixing block (311) and a tension spring column (314), and a support column (312) is arranged between the first fixing block (311) and the first connecting block (31).

5. The sofa backrest plugging and unplugging assembly of claim 1, wherein: a second fixing block (321) is further arranged on the second connecting block (32), and a gear column (322) is further arranged between the second fixing block (321) and the second connecting block (32).

6. The sofa backrest plugging and unplugging assembly of claim 4, wherein: the gear shift bar (4) is hinged with the first connecting block (31) through the connection of the fulcrum hole (46) and the support column (312).

7. The sofa backrest plugging and unplugging assembly of claim 4, wherein: the tension spring connecting hole (45) is connected with the tension spring column (314) through a tension spring (313).

8. The sofa backrest plugging and unplugging assembly of claim 5, wherein: one part of the gear bar (4) is positioned among the second connecting block (32), the second fixing block (321) and the gear post (322), and the edge of the gear bar (4) with the initial gear part (41) is attached to the gear post.

9. The sofa backrest plugging and unplugging assembly of claim 3, wherein: first gear shifting pieces (421) are hinged to the first shifting piece connecting holes (47), and second gear shifting pieces (431) are hinged to the second shifting piece connecting holes (48).

10. The sofa backrest plugging and unplugging assembly of claim 9, wherein: the section of the gear shift bar (4) is U-shaped, and one part of the first gear shift piece (421) and one part of the second gear shift piece (431) are positioned in the gear shift bar (4).