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CN-224219760-U - Folding seat with adjustable waist rest

CN224219760UCN 224219760 UCN224219760 UCN 224219760UCN-224219760-U

Abstract

The utility model discloses a folding seat with an adjustable waist rest, which comprises two landing support frames (1), wherein a seat board (2) is arranged between the two support frames (1), the rear side of the seat board (2) is rotationally connected with the support frames (1), a torsion spring (3) is arranged between the seat board (2) and the support frames (1), a leaning board (4) is arranged at the rear side of the seat board (2), a waist rest (5) close to the leaning board (4) is arranged above the seat board (2), lifting boards (6) are in sliding connection with the leaning board (4), lifting boards (6) connected with the waist rest (5) are arranged at two sides of the leaning board (4), a connecting rod (7) is arranged between the lifting boards (6) and the seat board (2), one end of the connecting rod (7) is rotationally connected with the lifting boards (6), and the other end of the connecting rod (7) is rotationally connected with one side of the seat board (2). The utility model has the advantages that the waist rest height can be automatically adjusted according to the seat plate state, not only is comfortable to use when people sit, but also has good folding effect when no people sit.

Inventors

  • JIANG ZIYI

Assignees

  • 杭州胜奇纺塑有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (5)

  1. 1. The utility model provides a waist leans on adjustable folding seat, including two support frames (1) that fall to the ground, be equipped with bedplate (2) between two support frames (1), the rear side and the support frame (1) of bedplate (2) rotate to be connected, be equipped with torsional spring (3) between bedplate (2) and support frame (1), the rear side of bedplate (2) is equipped with backup plate (4) fixed with support frame (1), the top of bedplate (2) is equipped with waist leaning on (5) near backup plate (4), characterized in that both sides of backup plate (4) all are equipped with lifter plate (6) that connect waist leaning on (5), lifter plate (6) and backup plate (4) sliding connection, be equipped with connecting rod (7) between lifter plate (6) and bedplate (2), the one end and lifter plate (6) of connecting rod (7) rotate to be connected, the other end and one side of bedplate (2) of connecting rod (7) rotate to be connected.
  2. 2. The folding chair with the adjustable lumbar support according to claim 1, wherein the support frame (1) comprises a stand column (8) fixed with the rear side of the backup plate (4), a bottom plate (9) is arranged at the bottom of the stand column (8), a mounting hole (10) is arranged on the bottom plate (9), and a cantilever beam (11) rotationally connected with the seat plate (2) is arranged at the front side of the stand column (8).
  3. 3. The folding seat with the adjustable lumbar support according to claim 2, wherein a rotating shaft (12) is arranged on one side of the seat plate (2), a through hole (13) matched with the rotating shaft (12) is formed in the cantilever beam (11), the torsion spring (3) is spiral, the rotating shaft (12) penetrates through the torsion spring (3), one end of the torsion spring (3) is connected with the seat plate (2), and the other end of the torsion spring (3) is connected with the cantilever beam (11).
  4. 4. The folding seat with adjustable lumbar support according to claim 1, wherein the connecting rod (7) comprises a vertical part (14) and a horizontal part (15), the vertical part (14) is connected with the horizontal part (15) through a bending part (16), one end of the vertical part (14) is rotatably connected with the lifting plate (6), and one end of the horizontal part (15) is rotatably connected with the seat plate (2).
  5. 5. The folding chair with the adjustable lumbar support according to claim 1, wherein the lumbar support (5) comprises a flexible inner core, and a cloth cover is arranged on the outer side of the inner core and is in sticking connection with the lifting plate (6).

Description

Folding seat with adjustable waist rest Technical Field The utility model belongs to the field of folding seats, and particularly relates to a folding seat with an adjustable waist rest. Background The folding seat is used in public places such as meeting hall generally, and a plurality of folding seat rectangular arrays are arranged, and when meeting personnel stand up, the bedplate of folding seat can rotate to with the laminating of leaning on, the purpose of setting like this, when leaving the field, can make and form wider passageway between the front and back row, and the convenience personnel pass, also make things convenient for the sanitary cleaning after meeting simultaneously. The structure of the existing folding seat comprises a left supporting frame and a right supporting frame which fall to the ground, a seat board is arranged between the two supporting frames, the rear side of the seat board is rotationally connected with the supporting frames, a torsion spring is arranged between the seat board and the supporting frames, a backup plate fixed with the supporting frames is arranged on the rear side of the seat board, and under the action of the torsion spring, when a person sitting on the folding seat is not present, the seat board is turned upwards and folded, and is kept attached to the backup plate. When the folding seats are arranged in the conference hall, the supporting frames between the same-row adjacent folding seats can be shared. In some higher conference halls, can set up the waist of soft package and lean on in the front side of backup plate, but set up the waist and lean on the back, formed the barrier between bedplate and the backup plate, can not laminate the backup plate, keep the upper end forward tilting state after the bedplate is folding, reduced the passageway width, be unfavorable for personnel to pass through and the sanitary clean after meeting, folding effect is relatively poor. Disclosure of utility model The utility model aims to provide a folding seat with an adjustable waist rest. The utility model has the advantages that the waist rest height can be automatically adjusted according to the seat plate state, not only is comfortable to use when people sit, but also has good folding effect when no people sit. The technical scheme is that the folding seat with the adjustable waist rest comprises two supporting frames which fall on the ground, a seat board is arranged between the two supporting frames, the rear side of the seat board is rotationally connected with the supporting frames, a torsion spring is arranged between the seat board and the supporting frames, a rest board fixed with the supporting frames is arranged at the rear side of the seat board, the waist rest close to the rest board is arranged above the seat board, lifting plates connected with the waist rest are arranged on two sides of the rest board, the lifting plates are in sliding connection with the rest board, a connecting rod is arranged between the lifting plates and the seat board, one end of the connecting rod is rotationally connected with the lifting plates, and the other end of the connecting rod is rotationally connected with one side of the seat board. The folding seat with the adjustable waist rest is arranged in the middle, the supporting frame comprises a stand column fixed with the rear side of the leaning plate, a bottom plate is arranged at the bottom of the stand column, a mounting hole is formed in the bottom plate, and a cantilever beam connected with the seat plate in a rotating mode is arranged on the front side of the stand column. In the folding seat with the adjustable lumbar support, the rotating shaft is arranged on one side of the seat plate, the cantilever beam is provided with the through hole matched with the rotating shaft, the torsion spring is in a spiral shape, the rotating shaft penetrates through the torsion spring, one end of the torsion spring is connected with the seat plate, and the other end of the torsion spring is connected with the cantilever beam. In the folding seat with the adjustable lumbar support, the connecting rod comprises a vertical part and a horizontal part, the vertical part is connected with the horizontal part through the bending part, one end of the vertical part is rotationally connected with the lifting plate, and one end of the horizontal part is rotationally connected with the seat plate. In the folding seat with the adjustable lumbar support, the lumbar support comprises a flexible inner core, and a cloth sleeve is arranged on the outer side of the inner core and connected with the lifting plate through sticking buckles. Compared with the prior art, the lifting plate which is in sliding connection with the backup plate is arranged on the lumbar support, the connecting rod is arranged between the lifting plate and the seat plate, so that the lumbar support is linked with the seat plate, when a person is on the seat plate and keeps the