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CN-224219767-U - Sofa seat capable of changing sitting postures

CN224219767UCN 224219767 UCN224219767 UCN 224219767UCN-224219767-U

Abstract

The utility model discloses a sofa seat capable of changing sitting postures, which comprises a support frame, wherein an adjustable support plate, a backrest and an adjusting mechanism are respectively arranged on the front side and the rear side of the support frame, the adjusting mechanism comprises a sliding groove, a sliding rod, an avoidance groove, a pull block, an inserting column and a limiting hole, a headrest is connected in a sliding way in a notch I formed in the upper surface of the backrest, the sliding groove is formed in the left side surface of the headrest, the sliding rod is connected in the sliding groove in a sliding way, the avoidance groove is formed in the left side surface of the backrest, the left end of the sliding rod is connected in the avoidance groove in a sliding way, the pull block is arranged at the left end of the sliding rod, the inserting columns are respectively arranged on the front side and the rear side of the right side of the pull block, and the uniformly distributed limiting holes are formed in the left side surface of the backrest.

Inventors

  • Lei Sanmu
  • LEI TIANPENG

Assignees

  • 安吉新鹏家居有限公司

Dates

Publication Date
20260512
Application Date
20250703

Claims (7)

  1. 1. The sofa seat capable of changing sitting postures comprises a support frame (1), wherein the front side and the rear side of the support frame (1) are respectively provided with an adjustable support plate (4) and a backrest (2), and the sofa seat is characterized by also comprising an adjusting mechanism (3); The adjusting mechanism (3) comprises a sliding groove (31), a sliding rod (32), an avoidance groove (33), a pull block (34), inserting columns (35) and limiting holes (36), wherein a first inner sliding connection of a notch formed in the upper surface of the backrest (2) is provided with a headrest (6), the left side surface of the headrest (6) is provided with the sliding groove (31), the sliding rod (32) is slidingly connected with the inside of the sliding groove (31), the left side surface of the backrest (2) is provided with the avoidance groove (33), the left end of the sliding rod (32) is slidingly connected with the inside of the avoidance groove (33), the left end of the sliding rod (32) is provided with the pull block (34), the front side and the rear side of the right side surface of the pull block (34) are respectively provided with the inserting columns (35), the left side surface of the backrest (2) is provided with uniformly distributed limiting holes (36), and the inserting columns (35) are respectively inserted into the inside of the adjacent limiting holes (36).
  2. 2. The sofa chair capable of changing sitting postures according to claim 1 wherein the adjusting mechanism (3) further comprises a reset component (37), the reset component (37) comprises a limiting block (371) and a spring (372), the right end of the sliding rod (32) is provided with the limiting block (371), the outer surface of the sliding rod (32) is movably sleeved with the spring (372), and the spring (372) is located between the left side face of the limiting block (371) and the left wall of the sliding groove (31).
  3. 3. The sofa seat capable of changing sitting postures according to claim 1, wherein the adjusting mechanism (3) further comprises an extending component (38), the extending component (38) comprises a screw rod (381) and a limiting rod (382), the second inner slide of the notch formed in the lower surface of the supporting plate (4) is connected with an extending plate (7), the screw rod (381) is rotatably connected to the left side of the inside of the second inner slide, the outer surface of the screw rod (381) is in threaded connection with a threaded hole formed in the left side bulge of the extending plate (7), the limiting rod (382) is arranged on the right side of the inside of the second inner slide, and the outer surface of the limiting rod (382) is in sliding connection with a sliding hole formed in the right side bulge of the extending plate (7).
  4. 4. The sofa chair capable of changing sitting postures according to claim 3 wherein the extension module (38) further comprises a first bevel gear (383), a rotating shaft (384), a second bevel gear (385) and a rotating disc (386), the first bevel gear (383) is arranged at the upper end of the screw rod (381), the second bevel gear (385) is rotatably connected to the left wall of the support plate (4) through the rotating shaft (384), the first bevel gear (383) is meshed with the second bevel gear (385), and the rotating disc (386) is arranged at the left end of the rotating shaft (384).
  5. 5. The sofa chair capable of changing sitting postures according to claim 1, wherein the left side and the right side of the supporting frame (1) are respectively connected with handrails (5) through damping rotating shafts in a rotating mode, the front side and the rear side of the supporting frame (1) are respectively provided with rotating grooves, and the inner parts of the front rotating groove and the rear rotating groove are respectively connected with a supporting plate (4) and a backrest (2) through rotating rods (10) in a rotating mode.
  6. 6. The sofa chair capable of changing sitting postures according to claim 5 further comprising a locking mechanism (9), wherein the locking mechanism (9) comprises a ratchet wheel (91), a rotating rod (92), an adjusting handle (93) and a torsion spring (94), the ratchet wheel (91) is arranged at the left end of the rotating rod (10), the adjusting handle (93) is rotatably connected to the front side and the rear side of the left side of the supporting frame (1) through the rotating rod (92), the protruding portion of the outer surface of the adjusting handle (93) is clamped between two ratchets of the adjacent ratchet wheel (91), the torsion spring (94) is sleeved on the outer surface of the rotating rod (10), one end of the torsion spring (94) is fixedly connected to the left side face of the supporting frame (1), and the other end of the torsion spring (94) is propped against the right side face of the adjacent rotating rod (92).
  7. 7. The sofa chair capable of changing sitting postures according to claim 5 wherein the upper surface of the support frame (1), the front side of the support plate (4), the front side of the backrest (2), the front side of the headrest (6) and the side of the armrest (5) close to the support frame (1) are respectively provided with a foam-rubber cushion (8).

Description

Sofa seat capable of changing sitting postures Technical Field The utility model relates to the technical field of sofa seats, in particular to a sofa seat capable of changing sitting postures. Background The seat is common furniture, the existing seat mainly comprises a support frame, a seat surface and a backrest, along with the development of technology, the requirements of people on the sofa seat are gradually increased, and in order to improve the comfort level of people when the sofa seat is used, the existing sofa seat generally has the angle adjusting function of the backrest; When the existing sofa seat is used, a user sits on a seat surface on a support frame, then backs up the backrest, when the angle of the backrest needs to be adjusted, the locking mechanism is loosened by pulling an adjusting handle, and then the backrest can be manually rotated to adjust the angle; The existing sofa seat has the following problems that most of the existing sofa seats are angle adjustment between the back and the seat surface on the support frame and self-height adjustment, can not adjust and adapt to postures such as lying, sitting and the like, and has low flexibility, so that the sofa seat capable of converting the sitting posture is proposed. Disclosure of Invention The utility model aims to overcome the existing defects, provide the sofa seat capable of changing the sitting posture, adjust the sofa seat through the adjusting mechanism, enable the sofa seat to adapt to various postures such as lying and sitting of a user, improve the flexibility when the sofa seat is used, and effectively solve the problems in the background art. In order to achieve the aim, the utility model provides the technical scheme that the sofa seat capable of changing sitting postures comprises a support frame, wherein the front side and the rear side of the support frame are respectively provided with an adjustable support plate and a backrest, and the sofa seat also comprises an adjusting mechanism; The adjusting mechanism comprises a sliding groove, a sliding rod, an avoidance groove, a pulling block, inserting columns and limiting holes, wherein a headrest is connected in a first sliding way of a notch formed in the upper surface of the backrest, the sliding groove is formed in the left side surface of the headrest, the sliding rod is connected in a sliding way in the sliding groove, the avoidance groove is formed in the left side surface of the backrest, the left end of the sliding rod is connected in the avoidance groove in a sliding way, the pulling block is arranged at the left end of the sliding rod, the inserting columns are arranged at the front side and the rear side of the right side of the pulling block, the limiting holes which are uniformly distributed are formed in the left side surface of the backrest, the inserting columns are inserted into the adjacent limiting holes, and the sofa seat is adjusted through the adjusting mechanism, so that the sofa seat can adapt to various postures such as lying and sitting of a user, and the flexibility when the sofa seat is used is improved. Further, adjustment mechanism still includes reset subassembly, and reset subassembly includes stopper and spring, and the right-hand member of slide bar is equipped with the stopper, and the surface movable sleeve of slide bar is equipped with the spring, and the spring is located between the left surface of stopper and the left wall of spout, is convenient for fix back and headrest. Further, adjustment mechanism still includes extension subassembly, and extension subassembly includes lead screw and gag lever post, and notch second sliding connection that the backup pad lower surface was seted up has the extension board, and notch second's inside left side rotates to be connected with the lead screw, and the screw hole threaded connection of seting up on the left side arch of extension board is equipped with the gag lever post on notch second's inside right side, and the slide hole sliding connection of seting up on the surface of gag lever post and the right side arch of extension board is convenient for control extension board stretches out. Further, the extension assembly further comprises a first bevel gear, a rotating shaft, a second bevel gear and a rotating disc, the first bevel gear is arranged at the upper end of the screw rod, the second bevel gear is connected to the left wall of the supporting plate in a rotating mode through the rotating shaft, the first bevel gear is connected with the second bevel gear in a meshed mode, the rotating disc is arranged at the left end of the rotating shaft, and the extension assembly can be driven to work normally conveniently. Further, the left and right sides of support frame all are connected with the handrail through the rotation of damping pivot, and the rotation groove has all been seted up to the front and back both sides of support frame, and the inside in front and back two rotation g