CN217743675U

CN217743675U - Back plate structure of chair

Info

Publication number: CN217743675U
Application number: CN202221762630.9U
Authority: CN
Inventors: 姚永红; 赵仲勇; 聂庆丰
Original assignee: Zhongshan Wosen Office Furniture Manufacturing Co ltd
Current assignee: Guangdong Huasheng Furniture Group Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-11-08
Anticipated expiration: 2032-07-06

Abstract

The utility model discloses a backplate structure of chair, including the backplate upper portion is equipped with the headrest subassembly, the front side of backplate is equipped with the waist and leans on the subassembly, the headrest subassembly includes the arc elastic plate, the upper portion of arc elastic plate with backplate upper portion fixed connection, the lower part of arc elastic plate with the interval has between the backplate the rear wall face of arc elastic plate with first buffering space has between the front wall face of backplate, it has soft cladding piece still to clad on the arc elastic plate. The utility model discloses an arc elastic plate is as the base plate of headrest subassembly, then toward the cladding have soft cladding piece on the arc elastic plate again, carries out fixed connection with the upper portion and the backplate of arc elastic plate again. Therefore, a buffering space can be formed between the arc-shaped elastic plate and the back plate, meanwhile, the soft covering piece can also play a role in soft resilience, and the comfort level of the support can be improved through secondary buffering resilience.

Description

Back plate structure of chair

Technical Field

The utility model relates to a back plate structure of a chair.

Background

The chair back plate is a part of the chair and plays the role of a backrest. In order to ensure the comfort of a user, a soft headrest is added to the existing backboard for supporting the neck of the user.

However, the conventional headrest on the back plate is formed by wrapping a flexible wrapping member on a substrate and then fixing the entire headrest on the upper portion of the back plate. It plays elastic buffering through soft cladding piece to guarantee the comfort level with human contact. However, the soft support comes from the soft covering piece, the substrate in the headrest is fixedly connected with the back plate, the secondary buffer effect cannot be realized, and the comfort level is not enough.

For this reason, the existing back plate is to be further improved to enhance comfort.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a back plate structure of a chair.

According to the backplate structure of chair of this purpose design, including the backplate upper portion is equipped with the headrest subassembly, the front side of backplate is equipped with the waist and leans on the subassembly, the headrest subassembly includes the arc elastic plate, the upper portion of arc elastic plate with backplate upper portion fixed connection, the lower part of arc elastic plate with the interval has between the backplate the rear wall face of arc elastic plate with first buffer space has between the front wall face of backplate, it has soft cladding spare still to clad on the arc elastic plate.

Preferably, the headrest assembly further comprises a connecting piece, the connecting piece is composed of a connecting portion and an extending portion arranged on the rear side of the connecting portion, and the extending portion extends downwards to be attached to the rear side wall surface of the back plate;

the connecting part is internally provided with an inserting cavity with an opening at the front side, the rear side wall surface at the upper part of the arc-shaped elastic plate is provided with an inserting part, the inserting part is inserted in the inserting cavity, the inserting part is fixedly connected with the connecting part, and the connecting part is fixedly connected with the upper part of the back plate.

Preferably, a plurality of first mounting holes are formed in the inner bottom surface of the plugging cavity, first threaded holes corresponding to the first mounting holes are formed in the upper portion of the back plate, first bolts penetrate through the first mounting holes and are in threaded connection with the first threaded holes, a plurality of second threaded holes are formed in the extending portion, second mounting holes are formed in positions, corresponding to the second threaded holes, of the connecting portion, and second bolts penetrate through the second mounting holes and are in threaded connection with the second threaded holes.

Preferably, a decorative strip is detachably connected to the upper end face of the connecting part.

Preferably, a plurality of through holes are formed in the upper end face of the connecting portion, a plurality of threaded columns are arranged on the lower end face of the decorative strip corresponding to the through holes, a clamping piece is arranged on the lower end face of each threaded column, a third bolt penetrates through the lower portion of each clamping piece to be in threaded connection with the corresponding threaded column, the corresponding threaded columns are inserted into the through holes, and the corresponding clamping pieces are clamped and fixed with the inner walls of the through holes.

Preferably, the engaging member includes a connecting ring, and a plurality of elastic portions that are in interference fit with the inner wall of the through hole are circumferentially arranged on the connecting ring.

Preferably, the lumbar support assembly comprises an elastic base plate fixedly connected with the front wall surface of the back plate, a soft back cushion is fixedly connected to the front wall surface of the elastic base plate, the lower end of the elastic base plate extends in a forward bending mode, and a second buffering space is formed between the elastic base plate and the back plate.

Preferably, a protrusion is arranged on the front wall surface of the lower part of the back plate, and the rear end surface of the elastic substrate is attached to the protrusion.

The utility model has the advantages of simple and reasonable structure, secondary buffering resilience and improved comfort, compared with the prior art, the utility model comprises a back plate, a headrest component is arranged on the upper part of the back plate, a waist rest component is arranged on the front side of the back plate, the headrest component comprises an arc-shaped elastic plate, the upper portion of arc elastic plate with backplate upper portion fixed connection, the lower part of arc elastic plate with the interval has between the backplate the rear wall face of arc elastic plate with have first buffer space between the preceding lateral wall face of backplate, the last cladding that still has soft cladding piece of arc elastic plate. The utility model discloses an arc elastic plate is as the base plate of headrest subassembly, then toward the cladding have soft cladding piece on the arc elastic plate again, carries out fixed connection with the upper portion and the backplate of arc elastic plate again. Therefore, a buffer space can be formed between the arc elastic plate and the back plate, the soft covering piece can play a soft resilience role, and the secondary buffer resilience can improve the comfort level of the support.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of an exploded structure of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is a second exploded view of the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

fig. 6 is a schematic sectional structure of the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 6 at C;

FIG. 8 is a schematic view of the engaging member;

fig. 9 is an enlarged schematic view of D in fig. 6.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 9, a back plate structure of a chair includes a back plate 10, a headrest assembly 30 is disposed on an upper portion of the back plate 10, a lumbar support assembly 20 is disposed on a front side of the back plate 10, the headrest assembly 30 includes an arc-shaped elastic plate 310, an upper portion of the arc-shaped elastic plate 310 is fixedly connected to an upper portion of the back plate 10, a space is provided between a lower portion of the arc-shaped elastic plate 310 and the back plate 10, a first buffer space 300 is provided between a rear side wall surface of the arc-shaped elastic plate 310 and a front side wall surface of the back plate 10, and the arc-shaped elastic plate 310 is further covered with a soft covering member 320.

The utility model discloses an arc elastic plate is as the base plate of headrest subassembly, then toward the cladding have soft cladding piece on the arc elastic plate again, carries out fixed connection with the upper portion and the backplate of arc elastic plate again. Therefore, a buffering space can be formed between the arc-shaped elastic plate and the back plate, meanwhile, the soft covering piece can also play a role in soft resilience, and the comfort level of the support can be improved through secondary buffering resilience.

Referring to fig. 3 and 5, the headrest assembly 30 further includes a connecting member 330, and the connecting member 330 is composed of a connecting portion 332 and an extending portion 331 disposed at a rear side of the connecting portion 332;

the extension part 331 extends downwards to be attached to the rear side wall surface of the back plate 10, so that the attractiveness of the overall appearance can be effectively improved;

the connecting part 332 is internally provided with a plugging cavity 333 with a front side opened, the rear side wall surface of the upper part of the arc-shaped elastic plate 310 is provided with a plugging part 311, the plugging part 311 is plugged in the plugging cavity 333, the plugging part 311 is fixedly connected with the connecting part 332, and the connecting part 332 is fixedly connected with the upper part of the back plate 10.

Referring to fig. 3 and 5, a plurality of first mounting holes 335 are formed in an inner bottom surface of the inserting cavity 333, first screw holes corresponding to the first mounting holes 335 are formed in an upper portion of the back plate 10, first bolts 350 are inserted into the first mounting holes 335 to be screwed into the first screw holes, a plurality of second screw holes 312 are formed in the extending portion 331, second mounting holes 334 are formed in positions of the connecting portion 332 corresponding to the second screw holes 312, and second bolts 360 are inserted into the second mounting holes 334 to be screwed into the second screw holes 312.

Referring to fig. 3 and 5, a decorative strip 340 may be detachably connected to the upper end surface of the connecting portion 332.

Referring to fig. 3 and 5, a plurality of through holes 336 are formed in the upper end surface of the connecting portion 332, a plurality of threaded columns 341 are formed in the lower end surface of the trim strip 340 corresponding to the through holes 336, an engaging member 342 is formed in the lower end surface of the threaded columns 341, a third bolt 343 is inserted into the lower portion of the engaging member 342 to be in threaded connection with the threaded columns 341, the threaded columns 341 are inserted into the through holes 336, and the engaging member 342 is fixed to the inner walls of the through holes 336 in a clamping manner.

Referring to fig. 3 and 5, the engaging member 342 includes a connecting ring 344, and a plurality of elastic portions 345 that are arranged in an interference fit with the inner wall of the through hole 336 are circumferentially arrayed on the connecting ring 344.

During assembly, the third bolt 343 penetrates the connection ring 344, so that the connection ring 344 is sleeved outside the third bolt 343, and at this time, the third bolt 343 is connected with the threaded column 341, that is, the engaging member is fixed on the threaded column. Then, the decoration strip 340 is inserted from top to bottom, so that the engaging member is inserted into the through hole 336, and the elastic portion 345 is supported on the inner wall of the through hole 336, that is, the engaging member is in interference fit with the through hole, thereby completing the installation of the decoration strip.

Referring to fig. 6 and 9, the lumbar support assembly 20 includes an elastic base plate 210 fixedly connected to the front wall of the back plate 10, a soft cushion 220 fixedly connected to the front wall of the elastic base plate 210, and a second buffer space 230 between the elastic base plate 210 and the back plate 10 and extending forward and having a lower end bent.

Referring to fig. 6 and 9, a protrusion 240 is disposed on the lower front surface of the back plate 10, and the rear surface of the elastic base plate 210 is attached to the protrusion 240.

The elastic base plate 210 functions to provide better lumbar support because the elastic base plate located at the front side of the second buffer space 230 can be sequentially deformed to form a ring buffer when the user leans on the soft back pad 220 at his or her waist due to the backward acting force of the user.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the invention, and the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying a number of technical features indicated.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A backboard structure of a chair, comprising a backboard (10), a headrest assembly (30) provided on an upper portion of the backboard (10), a lumbar support assembly (20) provided on a front side of the backboard (10), characterized in that: headrest subassembly (30) include arc elastic plate (310), the upper portion of arc elastic plate (310) with backplate (10) upper portion fixed connection, the lower part of arc elastic plate (310) with interval has between backplate (10) the rear side wall face of arc elastic plate (310) with first buffer space (300) have between the preceding side wall face of backplate (10), still the cladding has soft cladding piece (320) on arc elastic plate (310).

2. The back plate structure of a chair as claimed in claim 1, wherein: the headrest assembly (30) further comprises a connecting piece (330), the connecting piece (330) is composed of a connecting part (332) and an extending part (331) arranged at the rear side of the connecting part (332), and the extending part (331) extends downwards to be attached to the rear side wall surface of the backboard (10);

the connecting part (332) is internally provided with a plugging cavity (333) with a front side opening, a plugging part (311) is arranged on the rear side wall surface of the upper part of the arc-shaped elastic plate (310), the plugging part (311) is plugged in the plugging cavity (333), the plugging part (311) is fixedly connected with the connecting part (332), and the connecting part (332) is fixedly connected with the upper part of the back plate (10).

3. The back plate structure of a chair as claimed in claim 2, wherein: be equipped with a plurality of first mounting holes (335) on the interior bottom surface of grafting chamber (333) backplate (10) upper portion be equipped with first screw hole that first mounting hole (335) corresponded to each other penetrate first bolt (350) in first mounting hole (335) with first screw hole threaded connection be equipped with a plurality of second screw hole (312) on extension (331) connecting portion (332) correspond be equipped with second mounting hole (334) on the position of second screw hole (312) penetrate in second mounting hole (334) second bolt (360) with second screw hole (312) threaded connection.

4. A back plate structure of a chair as claimed in claim 2 or 3, wherein: the upper end surface of the connecting part (332) can be detachably connected with a decorative strip (340).

5. The back plate structure of a chair according to claim 4, wherein: the upper end face of the connecting portion (332) is provided with a plurality of through holes (336), the lower end face of the decorative strip (340) is provided with a plurality of threaded columns (341) corresponding to the through holes (336), the lower end face of each threaded column (341) is provided with a clamping piece (342), a third bolt (343) penetrates through the lower portion of each clamping piece (342) to be in threaded connection with the corresponding threaded column (341), the threaded columns (341) are inserted into the through holes (336), and the clamping pieces (342) are clamped and fixed with the inner walls of the through holes (336).

6. The back plate structure of a chair according to claim 5, wherein: the clamping piece (342) comprises a connecting ring (344), and a plurality of elastic parts (345) which are in interference fit with the inner wall of the through hole (336) are arranged on the connecting ring (344) in a circumferential array mode.

7. A back plate structure of a chair according to any one of claims 1 to 3, wherein: the waist support assembly (20) comprises an elastic base plate (210) fixedly connected with the front wall surface of the back plate (10), a soft cushion (220) is fixedly connected to the front wall surface of the elastic base plate (210), the lower end of the elastic base plate (210) extends forwards in a bending mode, and a second buffer space (230) is formed between the elastic base plate and the back plate (10).

8. The back plate structure of a chair according to claim 7, wherein: a protrusion (240) is arranged on the front wall face of the lower portion of the back plate (10), and the rear end face of the elastic base plate (210) is attached to the protrusion (240).