Search

CN-224219774-U - Chair tilting mechanism and chair

CN224219774UCN 224219774 UCN224219774 UCN 224219774UCN-224219774-U

Abstract

The utility model relates to a seat tilting mechanism and a seat, wherein the seat tilting mechanism comprises a back cushion bracket, a back cushion main body, a waist cushion, an upper elastic sheet and a lower elastic sheet, wherein the upper end of the back cushion bracket is connected with the upper elastic sheet, the middle part of the upper end of the back cushion main body is connected with the upper end of the upper elastic sheet, the upper end of the waist cushion is rotatably arranged in the middle part of the front side of the back cushion bracket, the lower end of the waist cushion is connected with the middle part of the lower end of the main body of the store, the front end of the lower elastic sheet is connected with the waist cushion and/or the back cushion main body, and the rear end of the lower elastic sheet is connected with the lower end of the back cushion bracket. The utility model can always provide powerful and comfortable waist support for users in the tilting process, eliminate the waist stress of the users, provide comfortable sitting feeling and health protection for the users, and prevent the users from uncomfortable sitting for a long time.

Inventors

  • MA JIANSEN

Assignees

  • 马儒一

Dates

Publication Date
20260512
Application Date
20250610

Claims (9)

  1. 1. A chair tilting mechanism, characterized in that: the back cushion comprises a back cushion support, a back cushion main body, a waist cushion, an upper elastic sheet and a lower elastic sheet, wherein the upper end of the back cushion support is connected with the upper elastic sheet, the middle part of the upper end of the back cushion main body is connected with the upper end of the upper elastic sheet, the upper end of the waist cushion is rotatably arranged at the middle part of the front side of the back cushion support, the lower end of the waist cushion is connected with the middle part of the lower end of the back cushion main body, the front end of the lower elastic sheet is connected with the waist cushion and/or the back cushion main body, and the rear end of the lower elastic sheet is connected with the lower end of the back cushion support.
  2. 2. The seat recline mechanism according to claim 1 wherein: The upper elastic sheet is sheet-shaped, the lower elastic sheet is of an arch structure, and the arch direction of the lower elastic sheet is upward arch.
  3. 3. The seat recline mechanism according to claim 2 wherein: The lower end of the back cushion main body is arranged in an isolated mode with the back cushion support, and the front end of the lower elastic piece is connected with the waist cushion and the back cushion main body.
  4. 4. The seat recline mechanism according to claim 1 wherein: The back cushion comprises a back cushion support, wherein a rotary shaft is arranged in the middle of the front side of the back cushion support, the rotary shaft is located between the upper elastic piece and the lower elastic piece, a sleeve is arranged at the upper end of the waist cushion, and the sleeve is movably sleeved on the rotary shaft.
  5. 5. The seat recline mechanism according to claim 1 wherein: The waist pad is of an arc-shaped sheet structure, and the arch direction of the waist pad faces the front side direction of the back pad main body.
  6. 6. The seat recline mechanism according to claim 5 wherein: the lower end of the waist pad and the middle part of the lower end of the back pad main body are integrally formed.
  7. 7. The seat recline mechanism according to claim 1 wherein: the bottom front side of back cushion support is connected with the fixed bolster, the fixed bolster with back cushion support is L structure.
  8. 8. The seat recline mechanism of claim 7 wherein: the upper end of the fixed support is provided with a cushion, and the bottom of the fixed support is provided with a fixed part.
  9. 9. A seat, characterized in that: a seat reclining mechanism according to any one of claims 1 to 8.

Description

Chair tilting mechanism and chair Technical Field The utility model relates to the technical field of chair seats, in particular to a seat tilting mechanism and a seat. Background The traditional seat design is that the leaning mechanism is directly assembled at the bottom of the seat cushion, the leaning angle of the back cushion and the seat cushion is changed to generate under the seat cushion, and because the leaning rotation axis is under the seat cushion and the rotation axis is at the tail cone position when the human body leans, the leaning track generated by the leaning mechanism and the leaning rotation axis is different, when the back cushion leans, the back cushion can be attached to the shoulder of the human body, but the waist position can generate a large gap, so that the waist of the human body can not be contacted with the back cushion and is suspended without support. Thus, the long-term use is easy to cause the accumulated stress of the intervertebral disc of the waist of the user due to no support, thereby damaging the health of the human body. Disclosure of utility model Based on the above, the utility model aims to overcome the defects of the prior art and provide a seat tilting mechanism and a seat, which can always provide powerful and comfortable waist support for users in the tilting process, eliminate the waist stress of the users, provide comfortable sitting feeling and health protection for the users and prevent the users from sitting discomfort for a long time. In order to achieve the above object, a first aspect of the embodiments of the present utility model provides a seat reclining mechanism, including a back pad support, a back pad body, a lumbar pad, an upper elastic sheet, and a lower elastic sheet, wherein the upper end of the back pad support is connected with the upper elastic sheet, the middle part of the upper end of the back pad body is connected with the upper end of the upper elastic sheet, the upper end of the lumbar pad is rotatably disposed in the middle part of the front side of the back pad support, the lower end of the lumbar pad is connected with the middle part of the lower end of the back pad body, the front end of the lower elastic sheet is connected with the lumbar pad and/or the back pad body, and the rear end of the lower elastic sheet is connected with the lower end of the back pad support. As one embodiment, the upper elastic sheet is in a sheet shape, the lower elastic sheet is in an arch structure, and the arch direction of the lower elastic sheet is upward arch. As one embodiment, the lower end of the back pad body is spaced apart from the back pad holder, and the front end of the lower elastic piece is connected to the waist pad and the back pad body. As one implementation mode, a rotating shaft is arranged in the middle of the front side of the back cushion support, the rotating shaft is positioned between the upper elastic piece and the lower elastic piece, a sleeve is arranged at the upper end of the waist cushion, and the sleeve is movably sleeved on the rotating shaft. As one embodiment, the lumbar pad has an arc-shaped sheet structure, and the arch direction of the lumbar pad faces the front side direction of the back pad body. As one embodiment, the lower end of the lumbar pad is integrally formed with the middle part of the lower end of the back pad body. As an implementation mode, the bottom front side of the back cushion support is connected with a fixing support, and the fixing support and the back cushion support are of an L-shaped structure. As one embodiment, a cushion is provided at the upper end of the fixing bracket, and a fixing portion is provided at the bottom of the fixing bracket. Compared with the prior art, the seat tilting mechanism provided by the embodiment of the utility model has the beneficial effects that: The seat tilting mechanism comprises a back cushion bracket, a back cushion main body, a waist cushion, an upper elastic piece and a lower elastic piece, wherein the lower end of the upper elastic piece is connected with the upper end of the back cushion bracket, the upper end of the upper elastic piece is connected with the middle part of the upper end of the back cushion main body, a rotating shaft is arranged in the middle of the back cushion bracket, the upper end of the waist cushion is rotatably sleeved on the rotating shaft through a sleeve, the lower end of the waist cushion is connected with the middle of the lower end of the back cushion main body, and the lower elastic piece is arranged among the back cushion main body, the waist cushion and the back cushion bracket, so that when a user reclines backwards, the weight of shoulders presses the upper part of the back cushion main body to enable the back cushion main body to tilt backwards, the lower part of the back cushion main body is driven to move forwards simultaneously, and the lower elastic piece below the back cushion bracket pushes the waist cus