Search

CN-224206494-U - Waist support of seat and seat

CN224206494UCN 224206494 UCN224206494 UCN 224206494UCN-224206494-U

Abstract

The utility model discloses a waist support of a seat and the seat, wherein the waist support of the seat comprises a main waist support, two auxiliary waist supports and an installation seat, the main waist support is positioned at the front side of the installation seat, a connecting rod assembly is arranged between the main waist support and the installation seat, the connecting rod assembly comprises two first connecting rods and two second connecting rods, one ends of the two second connecting rods are hinged to the main waist support, one ends of the two first connecting rods are hinged to the installation seat, the other ends of the two first connecting rods are respectively hinged to the two second connecting rods, the two auxiliary waist supports are respectively hinged to the installation seat so that the auxiliary waist support can rotate relative to the installation seat around a first axis extending vertically, a linkage rod is arranged between the auxiliary waist support and the second connecting rods, a locking piece is fixedly connected to the auxiliary waist support, a locking piece is arranged on the installation seat, and the locking piece is in movable fit with the installation seat. The utility model can provide better supporting effect for users with different bodies, does not need manual adjustment by the users, and improves the use convenience and comfort of the seat.

Inventors

  • FENG XIAOWEI
  • Request for anonymity

Assignees

  • 杭州黑白调科技有限公司

Dates

Publication Date
20260508
Application Date
20250627

Claims (10)

  1. 1. The waist support of the seat is characterized by comprising a main waist support, two auxiliary waist supports and an installation seat, wherein the auxiliary waist supports and the installation seat are respectively positioned at two sides of the main waist support; The main waist support is positioned at the front side of the mounting seat, a connecting rod assembly is arranged between the main waist support and the mounting seat, the connecting rod assembly comprises two first connecting rods and two second connecting rods, one ends of the two second connecting rods are hinged on the main waist support, one ends of the two first connecting rods are hinged on the mounting seat, and the other ends of the two first connecting rods are respectively hinged on the two second connecting rods; The two auxiliary waist supports are respectively hinged on the mounting seat so that the auxiliary waist supports can rotate relative to the mounting seat around a first axis extending vertically, a linkage rod is arranged between each auxiliary waist support and a second connecting rod close to the auxiliary waist support, and two ends of the linkage rod are respectively hinged with the auxiliary waist support and the second connecting rod; The auxiliary waist support is fixedly connected with a locking block, the mounting seat is provided with a locking piece, and the locking piece is movably matched with the mounting seat so that the locking piece can move between a first position meshed with the locking block and a second position separated from the locking block.
  2. 2. The lumbar support of claim 1, wherein the locking block is provided with a plurality of first teeth arranged about the first axis, and the locking member is provided with a plurality of second teeth, the plurality of first teeth and the plurality of second teeth being engaged together when the locking member is in the first position.
  3. 3. A lumbar support as claimed in claim 1, wherein the mounting base is provided with a mounting slot recessed forwardly from a rear side thereof, the locking member being embedded in the mounting slot to enable the locking member to move in a fore-and-aft direction relative to the mounting base, the mounting base being pivotally connected to a handle located rearwardly of the locking member, the handle being provided with a boss for urging the locking member forwardly to retain the locking member in the first position.
  4. 4. A lumbar support of a seat according to claim 3, wherein the mounting base is provided with a swivel base at a front side of the mounting groove, the auxiliary lumbar support is pivotally connected to the swivel base through a rotary shaft, the first axis is a central axis of the rotary shaft, a through groove penetrating through the swivel base is formed at a front end of the mounting groove, and the locking member penetrates through the through groove and extends into the swivel base.
  5. 5. The lumbar support of claim 1, wherein the other end of the first link is hinged to the middle of the second link, one end of the link is hinged to the other end of the second link, and the other end of the link is hinged to the auxiliary lumbar support.
  6. 6. The lumbar support of claim 5, wherein the auxiliary lumbar support is provided with a connecting arm protruding from the auxiliary lumbar support, one end of the connecting arm, which is close to the auxiliary lumbar support, is pivoted with the mounting seat so that the connecting arm can rotate relative to the mounting seat around a first axis, the other end of the linkage rod is hinged on the connecting arm so that the linkage rod can rotate relative to the connecting arm around a second axis, the second axis is parallel to the first axis and is staggered with the first axis, and one end of the connecting arm, which is far away from the auxiliary lumbar support, forms a locking block.
  7. 7. A lumbar support as set forth in claim 6, wherein a torsion spring is disposed between the link arm and the mount for applying elastic stress to the link arm to maintain the link arm always in a tendency to swing outwardly relative to the mount.
  8. 8. The lumbar support of claim 7, wherein the mounting base is detachably fixed with a connecting block, one end of the first connecting rod is hinged to the connecting block, a connecting plate is arranged on one side of the connecting arm, which is away from the locking block, and the connecting plate is detachably and fixedly connected with the auxiliary lumbar support.
  9. 9. The lumbar support of claim 1 wherein the main lumbar support comprises a lumbar support frame and a support mesh mounted in the lumbar support frame, the lumbar support frame comprising two vertical beams on each side thereof, one end of each of the two second links being hinged to each of the two vertical beams.
  10. 10. A seat comprising a lumbar support according to any one of claims 1 to 9.

Description

Waist support of seat and seat Technical Field The utility model relates to the technical field of seats, in particular to a waist support of a seat and the seat. Background Some existing office chairs, electronic racing chairs and the like are generally configured with a waist support for supporting the waist of a user so as to prevent fatigue caused by suspended waist. The conventional lumbar support usually supports the waist of a user through a fixed supporting surface, the fixed supporting surface is difficult to provide support for the two sides of the waist of the user, and although the supporting surface of the lumbar support can be arranged in an arc shape to support the two sides of the waist through the two sides of the arc supporting surface, in order to meet the requirements of users with different body types, the shape of the arc supporting surface of the lumbar support needs to be arranged to have more redundancy, and for some users with larger waist width, the lumbar support can better fit the waist of the user, while for some users with smaller waist width, the two sides of the lumbar support are difficult to provide better support for the two sides of the waist of the user. Disclosure of utility model The utility model aims to provide a waist support of a seat and the seat, which can better support the waist of users with different bodies and improve the comfort level of the seat. In order to achieve the above purpose, the utility model adopts the following technical scheme: the waist support of the seat comprises a main waist support, two auxiliary waist supports and mounting seats, wherein the auxiliary waist supports and the mounting seats are respectively positioned at two sides of the main waist support; The main waist support is positioned at the front side of the mounting seat, a connecting rod assembly is arranged between the main waist support and the mounting seat, the connecting rod assembly comprises two first connecting rods and two second connecting rods, one ends of the two second connecting rods are hinged on the main waist support, one ends of the two first connecting rods are hinged on the mounting seat, and the other ends of the two first connecting rods are respectively hinged on the two second connecting rods; The two auxiliary waist supports are respectively hinged on the mounting seat so that the auxiliary waist supports can rotate relative to the mounting seat around a first axis extending vertically, a linkage rod is arranged between each auxiliary waist support and a second connecting rod close to the auxiliary waist support, and two ends of the linkage rod are respectively hinged with the auxiliary waist support and the second connecting rod; The auxiliary waist support is fixedly connected with a locking block, the mounting seat is provided with a locking piece, and the locking piece is movably matched with the mounting seat so that the locking piece can move between a first position meshed with the locking block and a second position separated from the locking block. Preferably, the locking piece is provided with a plurality of first convex teeth which are arranged around the first axis, the locking piece is provided with a plurality of second convex teeth, and when the locking piece is positioned at the first position, the plurality of first convex teeth and the plurality of second convex teeth are meshed together. Preferably, the mounting seat is provided with a mounting groove recessed forward from the rear side surface thereof, the locking piece is embedded in the mounting groove so that the locking piece can move relative to the mounting seat in the front-rear direction, the mounting seat is pivoted with a handle positioned at the rear side of the locking piece, and the handle is provided with a boss for pressing the locking piece forward so as to keep the locking piece at the first position. Preferably, the front side of the mounting seat, which is positioned in the mounting groove, is provided with a swivel base, the auxiliary waist support is pivoted on the swivel base through a rotating shaft, the first axis is the central axis of the rotating shaft, the front end of the mounting groove is provided with a through groove penetrating to the swivel base, and the locking piece penetrates through the through groove and stretches into the swivel base. Preferably, the other end of the first connecting rod is hinged to the middle of the second connecting rod, one end of the linkage rod is hinged to the other end of the second connecting rod, and the other end of the linkage rod is hinged to the auxiliary waist support. Preferably, the auxiliary waist support is provided with a connecting arm protruding out of the auxiliary waist support, one end of the connecting arm, which is close to the auxiliary waist support, is pivoted with the mounting seat so that the connecting arm can rotate around the first axis relative to the mounting seat, the other end of the li