CN-116558214-B - Push telescopic refrigerator drawer limiting assembly

CN116558214BCN 116558214 BCN116558214 BCN 116558214BCN-116558214-B

Abstract

The invention relates to the technical field of limiting parts and provides a limiting assembly for a drawer of a pressing telescopic refrigerator, which comprises a shell, a pressing column, a centering cylinder, a limiting sleeve, a positioning shaft and a pressing column, wherein a track cylinder is fixedly sleeved in the shell, the centering cylinder is coaxially sleeved in the pressing column, the limiting sleeve is movably sleeved between the pressing column and the centering cylinder, the positioning shaft is movably sleeved on the centering cylinder, the pressing column is in an extending state and a retracting state relative to the shell, and the pressing column can be switched between the extending state and the retracting state when being pressed by external force. Therefore, the invention improves convenience by switching the extending or retracting state of the pressing column according to the actual use situation. The invention can be assembled in advance and then integrally installed on the liner, integrates the existing two assembly procedures into one, and optimizes the production process.

Inventors

CHENG YU
WU CAIXIA
Teng Huanjie
SUI HONGJUN
XU NAN
GUO CHENGLONG
WANG HONGJIN

Assignees

澳柯玛股份有限公司

Dates

Publication Date: 20260505
Application Date: 20230411

Claims (6)

1. The drawer limiting assembly of the push telescopic refrigerator is characterized by comprising a shell, wherein one end of the shell is open, and the other end of the shell is closed; The device comprises a positioning shaft, a positioning spring, a pressing column, a centering sleeve, a positioning sleeve, a spring pressing surface and a pressing rod, wherein the pressing column is of a hollow structure, and a centering sleeve coaxial with the pressing column is fixedly sleeved in the pressing column; the pressing column has two states of extending and retracting relative to the shell, and the pressing column can be switched between the two states of extending and retracting when being pressed by external force; The track cylinder comprises a shell, a plurality of track blocks, a first sliding groove, a second sliding groove, a first sliding groove and a second sliding groove, wherein the track blocks are uniformly arranged on the inner wall of the track cylinder in a ring manner; The outer wall of the pressing column is uniformly and annularly provided with a plurality of rotation preventing convex blocks, and each rotation preventing convex block is arranged in a first chute or a second chute of the corresponding track cylinder in a sliding way; The outer wall of the limit sleeve is uniformly and annularly provided with a plurality of limit lugs, the limit lugs are provided with pushing inclined planes which are in contact fit with the driving surfaces of the pressing columns, the limit lugs are positioned in the first sliding grooves when the pressing columns are in an extending state relative to the shell, and the limit lugs are abutted against the stop surfaces when the pressing columns are in a retracting state relative to the shell.
2. The drawer limiting assembly of the push-pull refrigerator of claim 1, wherein a plurality of clamping blocks are uniformly arranged on the outer wall of the centering cylinder in a surrounding mode, and clamping pressing surfaces matched with the clamping blocks are correspondingly formed on the inner wall of the limiting sleeve.
3. The drawer limiting assembly of the push-pull type refrigerator according to claim 2, wherein an anti-falling structure is formed on the end face, facing the shell, of the centering cylinder, and an anti-falling blocking surface matched with the anti-falling structure is correspondingly arranged on the positioning shaft.
4. The drawer limiting assembly of the push-pull type refrigerator of claim 3 wherein one end of the positioning shaft is screwed with the anti-falling screw, and a part of a screw head of the anti-falling screw, which exceeds the side wall of the positioning shaft, forms the anti-falling blocking surface.
5. The drawer limiting assembly of the pressing telescopic refrigerator of claim 3, wherein the centering cylinder is composed of a plurality of cylindrical plates which are uniformly arranged around the axis in a surrounding mode, a clamping block is fixedly arranged on the outer side face of each cylindrical plate, one end of each cylindrical plate is fixedly connected with a pressing column, and the other end of each cylindrical plate is provided with an anti-falling structure.
6. The drawer limiting assembly of any one of claims 1-5, wherein the stop surface of the track block is an inclined surface, and the end of the stop surface forms a rotation stopping protrusion.

Description

Push telescopic refrigerator drawer limiting assembly Technical Field The invention belongs to the technical field of limiting parts, and particularly relates to a limiting assembly for a drawer of a push telescopic refrigerator. Background In order to avoid the drawer from being pulled out completely when in use, the liner of the refrigerator is provided with a limiting structure. As disclosed in chinese patent CN201810475377.0, the existing limiting structure generally includes a fixed seat and a limiting post. During production, the fixing seat rotates in the preassembling stage of the box body, the fixing seat is positioned after foaming, and then the limiting column is arranged on the liner. The two parts of the existing limiting structure are finished in two-to-two working procedures respectively, the operation is complex, the limiting column is fixed by adopting a screw, and the cleaning of the box body is inconvenient because the space of the liner is small. In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed. Disclosure of Invention Aiming at the defects, the invention improves convenience by switching the extending or retracting state of the pressing column according to the actual use situation. The invention can be assembled in advance and then integrally installed on the liner, integrates the existing two assembly procedures into one, and optimizes the production process. In order to solve the problems, the invention provides a push-telescopic refrigerator drawer limiting assembly, which comprises a shell, wherein one end of the shell is open, and the other end of the shell is closed; the track cylinder is fixedly sleeved in the shell, a positioning shaft is fixedly arranged in the shell, and the positioning shaft is sleeved with a reset spring; The device comprises a positioning shaft, a positioning spring, a pressing column, a centering sleeve, a positioning sleeve, a spring pressing surface and a pressing rod, wherein the pressing column is of a hollow structure, and a centering sleeve coaxial with the pressing column is fixedly sleeved in the pressing column; the pressing column has two states of extending and retracting relative to the shell, and the pressing column can be switched between the two states of extending and retracting when being pressed by external force; The track cylinder comprises a shell, a plurality of track blocks, a first sliding groove, a second sliding groove, a first sliding groove and a second sliding groove, wherein the track blocks are uniformly arranged on the inner wall of the track cylinder in a ring manner; The outer wall of the pressing column is uniformly and annularly provided with a plurality of rotation preventing convex blocks, and each rotation preventing convex block is arranged in a first chute or a second chute of the corresponding track cylinder in a sliding way; The outer wall of the limit sleeve is uniformly and annularly provided with a plurality of limit lugs, the limit lugs are provided with pushing inclined planes which are in contact fit with the driving surfaces of the pressing columns, the limit lugs are positioned in the first sliding grooves when the pressing columns are in an extending state relative to the shell, and the limit lugs are abutted against the stop surfaces when the pressing columns are in a retracting state relative to the shell. According to the pressing telescopic refrigerator drawer limiting assembly, the plurality of clamping blocks are uniformly arranged on the outer wall of the centering cylinder in a surrounding mode, and the clamping pressing surfaces matched with the clamping blocks are correspondingly formed on the inner wall of the limiting sleeve. According to the pressing telescopic refrigerator drawer limiting assembly, the end face, facing the shell, of the centering cylinder is provided with the anti-falling structure, and the positioning shaft is correspondingly provided with the anti-falling blocking surface matched with the anti-falling structure. According to the pressing telescopic refrigerator drawer limiting assembly, one end of the positioning shaft is in threaded connection with the anti-falling screw, and the part of the screw head of the anti-falling screw, which exceeds the side wall of the positioning shaft, forms the anti-falling blocking surface. The limiting assembly for the pressing telescopic refrigerator drawer comprises a plurality of cylindrical sheets uniformly arranged around an axis, wherein a clamping block is fixedly arranged on the outer side face of each cylindrical sheet, one end of each cylindrical sheet is fixedly connected with a pressing column, and the other end of each cylindrical sheet is provided with an anti-falling structure. According to the pressing telescopic refrigerator drawer limiting assembly, the stop surface of the track block is an inclined surface, and the tail end of the stop surface is pro