CN-224206493-U - Frame net surface type seat waist rest

CN224206493UCN 224206493 UCN224206493 UCN 224206493UCN-224206493-U

Abstract

The utility model relates to a frame net type seat waist rest, which comprises a frame net type rest body, a spring, a core seat, a connecting pin, an adjusting seat and an installing seat, wherein the front end surface of the core seat is an inclined surface, a spring positioning hole cavity is formed in the center of the core seat, the front end of the core seat is inserted into a core seat slot, the spring is positioned between the core seat and the core seat slot, the front end of the core seat is hinged with the slot wall of the core seat slot through the connecting pin at the position close to the lower top angle of the core seat, the rear part of the core seat is embedded and inserted into the adjusting seat, the adjusting seat is fixedly connected with the installing seat, and an installing hole is formed on the installing seat. The frame mesh type seat lumbar support can be quickly mounted to a seat back frame, when a human waist leans on a lumbar support body, the lumbar support body can provide a buffer function, so that impact on the waist is reduced, meanwhile, the frame mesh type seat lumbar support is also used as an elevation angle adjusting function, so that the elevation angle of the lumbar support body is more suitable, the lumbar support body is more attached to the waist, the waist is more comfortable, and the seat lumbar support can also adjust the depth, so that the use requirements of people with different body types are met.

Inventors

Du Dianxian

Assignees

佛山市佳仕轩家具有限公司

Dates

Publication Date: 20260508
Application Date: 20250630

Claims (2)

1. A frame mesh type seat waist rest comprises a frame mesh type seat waist rest body (1) and is characterized by further comprising a spring (2), a core seat (3), a connecting pin (4), an adjusting seat (6) and an installing seat (7), wherein the core seat slot (1-1) is integrally formed in the middle of the seat waist rest body (1), a spring positioning column (1-1-1) is formed in the core seat slot (1-1), the front end face of the core seat (3) is an inclined plane with an inclination angle of 65-75 degrees, a spring positioning cavity (3-1) is formed in the center, the front end of the core seat (3) is inserted into the core seat slot (1-1), the spring (2) is positioned between the core seat (3) and the core seat slot (1-1), one end of the spring (2) is sleeved on the spring positioning column (1-1-1) in the core seat slot (1-1), the other end of the spring positioning column (3-1) is embedded in the spring positioning cavity (3-1) of the core seat (3), meanwhile, the front end of the core seat (3) is close to the front end of the core seat (3) and can be hinged to the front end face (2) of the core seat (3) in a certain angle through the lower vertical angle of the front end face (4) of the seat waist rest body (1-1) of the seat waist rest body, and the front end of the seat waist rest body can be hinged to the front end of the seat waist rest body (3, two ends of the connecting pin (4) are limited by end covers (5); The rear part of the core seat (3) is embedded in the adjusting seat (6), the core seat (3) can be pulled out or pushed into the adjusting seat (6) to a certain extent, a core seat clamping and positioning mechanism is arranged in the adjusting seat (6), the core seat clamping and positioning mechanism comprises a clamping block positioning plate (6-1) which can be assembled/disassembled on the adjusting seat (6), a clamping block (6-2) and a top spring (6-3) which are arranged in a linear groove on the inner wall of the clamping block positioning plate (6-1), a smooth-edge bulge (6-2-1) is formed on the clamping block (6-2), a sawtooth groove (3-3) is formed on the surface of the core seat (3) along the pulling direction of the core seat (3), and the bulge (6-2-1) of the clamping block is clamped in the sawtooth groove (3-3) on the surface of the core seat (3) under the pushing action of the top spring (6-3); the adjusting seat (6) is fixedly connected with the mounting seat (7) through bolts, and symmetrically arranged mounting holes are formed in the mounting seat (7) so that the mounting seat (7) can be mounted on the chair back frame through bolts.
2. The frame mesh type seat lumbar support according to claim 1, wherein the outer wall of the core seat (3) and the inner wall of the adjusting seat (6) are correspondingly provided with linear grooves (3-4) and convex edges which are matched.

Description

Frame net surface type seat waist rest Technical Field The utility model relates to the technical field of seats, in particular to a frame net type seat lumbar support. Background The backrest of the conventional backrest chair is mainly designed for supporting the back, and has weak supporting effect or poor supporting effect on the waist of a human body, so that the backrest chair is easy to cause uncomfortable waist and enhance tired feeling when being used for sitting for a long time. At present, a chair specially aiming at human lumbar support exists, but due to structural design, the chair has defects such as poor use effect caused by the fact that the lumbar support has no elasticity, no buffering capacity, no adjustment of depth and the like. Disclosure of Invention The utility model aims to solve the technical problem of providing a frame net type seat lumbar support so as to overcome the defects and the shortcomings of the existing similar products in the background technology. The utility model solves the technical problems by adopting the technical scheme that the frame net type seat waist rest comprises a frame net type leaning body, a spring, a core seat, an adjusting seat and an installing seat, wherein a core seat slot is integrally formed in the middle of the leaning body, a spring positioning column is formed in the core seat slot, the front end face of the core seat is an inclined plane with an inclination angle of 65-75 degrees, a spring positioning hole cavity is formed in the center, the front end of the core seat is inserted into the core seat slot, the spring is positioned between the core seat and the core seat slot, one end of the spring is sleeved on the spring positioning column in the core seat slot, the other end of the spring is embedded into the spring positioning hole cavity of the core seat, meanwhile, the front end part of the core seat is hinged with the wall of the core seat slot through a connecting pin, and can only turn over an end cover within a certain angle range (as the inclination angle of the front end face of the core seat is determined) due to the limiting effect of the lower top angle of the core seat; The rear part of the core seat is embedded in the adjusting seat, the core seat can be pulled out or pushed in to a certain extent, a core seat clamping and positioning mechanism is arranged in the adjusting seat, the core seat clamping and positioning mechanism comprises a clamping block positioning plate which can be assembled/disassembled on the adjusting seat, a clamping block and a top spring, wherein the clamping block and the top spring are arranged in a linear groove on the inner wall of the clamping block positioning plate, a smooth-edge bulge is formed on the clamping block, a sawtooth groove is formed on the surface of the core seat along the pulling direction of the core seat, and the bulge of the clamping block is clamped in a sawtooth groove on the surface of the core seat under the pushing action of the top spring; The adjusting seat is fixedly connected with the mounting seat through bolts, and symmetrically arranged mounting holes are formed in the mounting seat for the mounting seat to be mounted on the chair back frame through bolts. Preferably, a linear groove and a convex rib which are matched are correspondingly formed on the outer wall of the core seat and the inner wall of the adjusting seat. The frame mesh type seat lumbar support has the advantages that the frame mesh type seat lumbar support can be quickly mounted to a seat back frame, when a human waist leans against the lumbar support body, the lumbar support body can provide a buffer effect (namely, the lumbar support body can elastically overturn backwards within a certain angle range) under the support of the springs, so that the impact on the waist is reduced, meanwhile, the frame mesh type seat lumbar support also serves as an elevation angle adjusting function, the lumbar support body is more suitable in elevation angle, the lumbar support body is more attached to the waist, the waist is more comfortable, and in addition, the seat lumbar support can also adjust the depth (the depth is adjusted by pulling out/pushing back the core seat from the adjusting seat), so that the use requirements of people with different sizes are met. Drawings The utility model is further described below with reference to the drawings and examples. FIG. 1 is a schematic perspective view of the present utility model; FIG. 2 is a schematic diagram of an exploded construction of the present utility model; Fig. 3 and fig. 4 are schematic front and bottom views of an assembly structure of a spring, a core seat and an adjusting seat according to the present utility model (fig. 4 shows that only a clamping block and a top spring are reserved to clearly show a matching structure by removing a clamping block positioning plate on the adjusting seat); Fig. 5 and 6 show the outer side and the inner side of the f