CN-122004613-A - Leisure chair suitable for waist relaxation

CN122004613ACN 122004613 ACN122004613 ACN 122004613ACN-122004613-A

Abstract

The invention discloses a leisure chair suitable for relaxing waist, which comprises a back frame, a back support frame, a waist support bracket, a waist support assembly and a back support assembly, wherein the back frame is integrally arranged on the front side of the back frame and is elastic, the top of the back frame is fixedly connected with the back frame, telescopic assemblies capable of stretching back and forth are connected between parts, corresponding to the waist of a user, of the back frame, two sides of the back frame are connected with the back frame, the edges of the back layer are connected with the inner periphery of the back frame and are used for supporting the waist of the user, the waist support bracket is arranged on the back frame, the waist support assembly transversely stretches and is arranged at the front end of the waist support bracket, the waist support assembly is supported on the back of the back layer, and the back support assembly supports the back support layer and is configured in a way that the left side and the right side of the back support assembly can swing back and forth relative to the middle part of the back support assembly. The invention has the beneficial effects that the leisure chair can be self-adaptively attached to the side-tipping sitting posture of a user and provide dynamic balanced support for the waist.

Inventors

LI HONGBIN
Wan Xizhi
CHEN XIUBO

Assignees

乐捷家居股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260225

Claims (10)

1. A lounge chair for lumbar relaxation comprising: a chair back frame; the backrest frame is integrally positioned at the front side of the backrest frame and has elasticity, the top of the backrest frame is fixedly connected with the backrest frame, and a telescopic component which can stretch back and forth is connected between the part of the two sides of the backrest frame corresponding to the waist of a user and the backrest frame; A back rest layer, the edge of which is connected with the inner periphery of the back rest frame and is used for supporting the waist and the back of a user; the waist support bracket is arranged on the chair back frame; And a lumbar support assembly extending laterally and provided at a front end of the lumbar support bracket and supported at a rear surface of the back rest layer, the lumbar support assembly supporting the back rest layer being configured such that left and right sides thereof are swingable back and forth with respect to a middle portion thereof.
2. The leisure chair according to claim 1, wherein the lumbar support assembly comprises a lumbar support base plate arranged on the lumbar support bracket, a lumbar support movable base plate supported on the back surface of the backrest layer, and an elastic member, wherein the middle part of the lumbar support movable base plate is movably connected with the middle part of the lumbar support base plate so that the left side and the right side of the lumbar support movable base plate can swing back and forth, at least one elastic member providing elasticity along the front-back direction is arranged on the two sides of the lumbar support base plate, and the elastic member is supported on the corresponding side of the lumbar support movable base plate.
3. The leisure chair according to claim 2, wherein the middle part of the waist support base plate is provided with an adjusting groove which penetrates through and vertically extends, the front end of the waist support bracket is clung to the back of the waist support base, the front end is provided with an adjusting piece which penetrates through the adjusting groove, and the part of the adjusting piece between the waist support base plate and the waist support movable base plate is clung to the front surface of the waist support base plate.
4. The lounge chair of claim 1, wherein the telescoping assembly comprises a telescoping engagement cylinder disposed on the back frame and a telescoping engagement rod disposed on the back frame, the telescoping engagement rod slidably engaging back and forth within the telescoping engagement cylinder, and wherein a damping assembly is disposed between the telescoping engagement cylinder and the telescoping engagement rod, the damping assembly being configured to gradually increase the resistance of the telescoping engagement rod to sliding back within the telescoping engagement cylinder.
5. The leisure chair according to claim 4, wherein the outer wall of the telescopic engagement bar has a positioning groove which extends continuously and is closed in a circumferential direction, the damping assembly includes a damping belt which is fitted in the positioning groove and has elasticity, and a plurality of engagement slide rails which are formed on the inner wall of the telescopic engagement bar and extend forward and backward, the damping belt has a plurality of damping engagement structures which correspond to the engagement slide rails and are arched to be separated from the groove walls of the positioning groove, the damping engagement structures are supported on the corresponding engagement slide rails, the engagement slide rails are formed by the protrusions of the inner wall of the telescopic engagement bar so that a gap is formed between the inner wall of the telescopic engagement bar and the outer wall of the telescopic engagement bar, and the protrusion degree of the engagement slide rails is gradually increased from front to back, so that the engagement slide rails gradually press the corresponding damping engagement portions to increase sliding resistance in the rearward sliding of the telescopic engagement bar.
6. The leisure chair according to claim 5, wherein the damping belt is formed with at least one fracture, and is adapted to enable the telescopic engagement rod to slide backward, the width of the fracture is consumed until the fracture is closed, and then the damping engagement portion is gradually pressed by the engagement slide rail.
7. The lounge chair according to any one of claims 1-6, wherein the left and right ends of the lumbar support assembly and the corresponding sides of the backrest frame are spaced apart such that the lateral area of the backrest layer corresponding to the lumbar support assembly is configured to be divided into a rigid support portion in the middle and supported by the lumbar support assembly, and a flexible support portion on both sides not supported by the lumbar support assembly.
8. The lounge chair of any one of claims 1-6, wherein the back frame has sides that gradually rise forward from top to bottom to the location corresponding to the lumbar support assembly and then gradually retract rearward.
9. The lounge chair of any one of claims 1-6, wherein the portion of the lumbar support assembly that supports the back rest layer presents an arcuate configuration that fits the user's waist.
10. The lounge chair of any one of claims 1-6 further comprising a rear support on which the chair back rest is mounted and vertically adjustable in position along the rear support.

Description

Leisure chair suitable for waist relaxation Technical Field The invention relates to a leisure chair, in particular to a leisure chair suitable for relaxing waist. Background The existing leisure chair provides basic sitting and lying functions and simultaneously faces the problem of comfort of long-time sitting of users. When a user sits for a long time in a normal sitting posture, the waist and buttocks are easily fatigued and uncomfortable due to the continuous bearing of pressure. To alleviate this localized fatigue, the user may involuntarily adjust the sitting position, tilt the body's center of gravity to the left or right, to shift the pressure distribution to the buttocks, and relax the tension muscles on the lumbar side. However, this spontaneous, sideways leaning sitting posture causes new discomfort. Since the backrest structure of conventional leisure chairs is usually designed to be fixed or only adjustable as a whole, the support of the backrest layer to the lumbar is static and symmetrical. When a user leans, the contact area and pressure distribution of the lumbar part and the backrest are changed significantly, so that the supporting force of the backrest layer on the lumbar part becomes uneven, the lateral pressure of the incline increases, excessive jacking can be generated, and the other side can be undersupported. The unbalanced supporting force caused by the posture change can cause extra force to the waist muscle to keep the body stable or cause the lumbar to be compressed improperly locally, thereby aggravating the soreness and discomfort of the waist. Disclosure of Invention The invention aims to provide a leisure chair suitable for relaxing the waist, which can be self-adaptively attached to the side-tipping sitting posture of a user and provide dynamic balanced support for the waist, so as to solve the problems of uneven lumbar support and discomfort caused by changing the sitting posture of the user. The invention is realized by the following technical scheme. A lounge chair suitable for lumbar relaxation comprising: a chair back frame; The backrest frame is integrally positioned at the front side of the backrest frame and is elastic, the top of the backrest frame is fixedly connected with the backrest frame, and a telescopic component which can be telescopic back and forth is connected between the part of the two sides of the backrest frame corresponding to the waist of a user and the backrest frame; a back rest layer, the edge of which is connected with the inner periphery of the back rest frame and is used for supporting the waist and the back of a user; the waist support bracket is arranged on the chair back frame; And a lumbar support assembly extending laterally and disposed at a front end of the lumbar support bracket and supported at a rear surface of the backrest layer, a portion of the lumbar support assembly supporting the backrest layer being configured to swing back and forth with respect to a middle portion thereof at left and right sides thereof. As a further improvement of the invention, the waist support component comprises a waist support base plate arranged on the waist support bracket, a waist support movable base plate supported on the back surface of the backrest layer and an elastic piece, wherein the middle part of the waist support movable base plate is movably connected with the middle part of the waist support base plate so that the left side and the right side of the waist support movable base plate can swing back and forth, at least one elastic piece which provides elasticity along the front-back direction is arranged on the two sides of the waist support base plate, and the elastic piece is supported on the corresponding side of the waist support movable base plate. As a further improvement of the invention, the middle part of the waist support base plate is provided with an adjusting groove which penetrates through and vertically extends, the front end of the waist support bracket is clung to the back part of the waist support base, the front end is provided with an adjusting piece which penetrates through the adjusting groove, and the part of the adjusting piece between the waist support base plate and the waist support movable base plate is clung to the front surface of the waist support base plate. As a further improvement of the present invention, the telescopic assembly includes a telescopic engagement cylinder provided on the back frame, and a telescopic engagement rod provided on the back frame, the telescopic engagement rod being slidably engaged in the telescopic engagement cylinder back and forth, and a damping assembly is provided between the telescopic engagement cylinder and the telescopic engagement rod, the damping assembly being configured to be adapted to gradually increase resistance of the telescopic engagement rod sliding rearward in the telescopic engagement cylinder. The damping assembly comprises a damping belt which is clamp