CN111536744A

CN111536744A - Refrigerator shelf automatic lifting device based on single drive

Info

Publication number: CN111536744A
Application number: CN202010372253.7A
Authority: CN
Inventors: 鲍敏; 李乾坤; 陆涛
Original assignee: Changhong Meiling Co Ltd
Current assignee: Changhong Meiling Co Ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-08-14

Abstract

The invention discloses a refrigerator shelf automatic lifting device based on single driving, and relates to the technical field of refrigerators. The air duct is provided with two first vertical sliding holes; an automatic lifting device is arranged at the back inside the refrigerator body; the automatic lifting device comprises a vertical mounting plate, a U-shaped lifting frame, a driving device, a screw and a lifting seat; the U-shaped lifting frame comprises a bottom rod and two supporting side rods; the vertical mounting plate is arranged on the back inside the refrigerator body; the U-shaped lifting frame is slidably arranged on the side surface of the vertical mounting plate; the lifting seat is fixed on the bottom surface of the bottom rod. The lifting device drives the screw to rotate forwards or backwards through the driving equipment, so that the lifting seat is driven to vertically move up and down, and the U-shaped lifting frame and the shelf are further driven to vertically move; the shelf is lifted through a single driving device, so that the problem of unsynchronized lifting of the shelf caused by a plurality of driving devices is solved; simple structure, with low costs to make the user very conveniently reach the refrigerator shelf on article, make things convenient for getting of article on this place shelf to put, optimize refrigerator space utilization.

Description

Refrigerator shelf automatic lifting device based on single drive

Technical Field

The invention belongs to the technical field of refrigerators, and particularly relates to a refrigerator shelf automatic lifting device based on single driving.

Background

In the prior art, most of refrigerator shelves are placed on ribs on the left side and the right side of an inner container, the ribs are provided with a plurality of different heights, and the positions of the shelves are adjusted according to requirements. But the height adjustment needs to take out all the articles on the shelf, put the shelf at a proper position and put the articles on the shelf, and for a high and deep large-volume refrigerator, the storage and the taking out of the foods on the shelf are inconvenient. And only a few fixed heights can be adjusted, and the effect of stepless adjustment of the shelf cannot be effectively realized. Meanwhile, the operation time is long, the amount of cold air is increased, the energy consumption loss is large, and the like.

The existing refrigerators mostly adopt a left lifting structure and a right lifting structure to realize the lifting of a shelf; however, under the existing process conditions, the left lifting mechanism and the right lifting mechanism are difficult to realize synchronization. The present invention has been made to solve the above problems and disadvantages; the utility model provides a refrigerator shelf automatic lifting device based on single drive, the effectual shelf lift problem of having solved realizes the shelf lift through single drive arrangement, avoids the problem that the shelf operation that a plurality of drive arrangement caused is asynchronous.

Disclosure of Invention

The invention aims to provide a refrigerator shelf automatic lifting device based on single drive.A over-drive device drives a screw to rotate forwards or backwards to drive a lifting seat to vertically move up and down so as to drive a U-shaped lifting frame and a shelf to vertically move; the shelf is lifted through a single driving device, and the problem that shelves are not lifted synchronously due to a plurality of driving devices is avoided.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a refrigerator shelf automatic lifting device based on single driving, which comprises a refrigerator body and a shelf, wherein an air duct is arranged on the back inside the refrigerator body, and two first vertical sliding holes are formed in the air duct; the automatic lifting device is positioned in the air duct, and an automatic lifting device is arranged on the back in the refrigerator body;

the automatic lifting device comprises a vertical mounting plate, a U-shaped lifting frame, a driving device, a screw and a lifting seat; the U-shaped lifting frame comprises a bottom rod and two supporting side rods; the vertical mounting plate is mounted on the back inside the refrigerator body; the U-shaped lifting frame is slidably arranged on the side surface of the vertical mounting plate; the lifting seat is fixed on the bottom surface of the bottom rod;

a driving device is arranged on the side face of the bottom of the vertical mounting plate; the output end of the driving device is connected with the screw rod; the screw rod is in threaded connection with the lifting seat and penetrates through a through hole formed in the bottom rod; the supporting side rod is matched in the first vertical sliding hole in a sliding manner; and the two supporting side rods are fixedly provided with a shelf.

Preferably, the two side ends of the vertical mounting plate are vertically provided with vertical ear plates; a second vertical sliding hole is formed in the vertical ear plate; and two ends of the bottom rod are matched in the second vertical sliding hole in a sliding manner.

Preferably, the bottom of the vertical mounting plate is provided with a horizontal chute; two sliding blocks which are arranged in the horizontal sliding groove in a sliding mode are symmetrically arranged on two sides of the driving device; two sides of the lifting seat are symmetrically hinged with connecting rods; one end of the connecting rod is hinged to the side face of the sliding block.

Preferably, the upper part and the lower part of one side surface of the vertical mounting plate are correspondingly fixed with the horizontal mounting block; the driving device is arranged on the bottom surface of the horizontal mounting block positioned at the lower part; the screw is rotatably mounted between the horizontal mounting blocks.

One aspect of the present invention has the following advantageous effects:

1. the lifting device drives the screw to rotate forwards or backwards through the driving equipment, so that the lifting seat is driven to vertically move up and down, and the U-shaped lifting frame and the shelf are further driven to vertically move; the shelf is lifted through a single driving device, so that the problem of unsynchronized lifting of the shelf caused by a plurality of driving devices is solved; the refrigerator shelf has the advantages that the structure is simple, the cost is low, so that a user can conveniently reach articles on the refrigerator shelf, the articles on the shelf are conveniently taken and placed, and the space utilization rate of the refrigerator is optimized;

2. the connecting rods hinged to the two sides of the lifting seat are hinged to the sliding block, so that the problems that the lifting seat is large in bearing force, unstable in movement and limited in service life due to the fact that weight is concentrated on the lifting seat are solved.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an automatic refrigerator shelf lifting device based on single drive according to the present invention;

FIG. 2 is a schematic structural diagram of the refrigerator shelf automatic lifting device based on single drive without an air duct;

FIG. 3 is a schematic structural view of the automatic lifting device of the refrigerator shelf automatic lifting device based on single drive, in which a U-shaped lifting frame is positioned at the top;

FIG. 4 is a schematic structural view of the bottom of a U-shaped lifting frame of the automatic lifting device in the refrigerator shelf automatic lifting device based on single drive of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-refrigerator body, 2-shelf, 3-air duct, 31-first vertical sliding hole, 4-automatic lifting device, 41-vertical mounting plate, 411-vertical lug plate, 412-second vertical sliding hole, 413-horizontal sliding groove, 414-sliding block, 415-horizontal mounting block, 42-U-shaped lifting frame, 421-bottom rod, 422-supporting side rod, 423-through hole, 43-driving device, 44-screw rod, 45-lifting seat and 46-connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open," "upper," "middle," "length," "inner," and the like are used in an orientation or positional relationship for convenience in describing the present invention and for simplicity of description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-4, the invention relates to a refrigerator shelf automatic lifting device based on single drive, which comprises a refrigerator body 1 and a shelf 2, wherein an air duct 3 is arranged on the back inside the refrigerator body 1, and the air duct 3 is provided with two first vertical sliding holes 31; the automatic lifting device 4 is arranged in the air duct 3 and is arranged on the back inside the refrigerator body 1;

the automatic lifting device 4 comprises a vertical mounting plate 41, a U-shaped lifting frame 42, a driving device 43, a screw 44 and a lifting seat 45; the U-shaped lifting frame 42 comprises a bottom rod 421 and two supporting side rods 422; the vertical mounting plate 412 is mounted on the back inside the refrigerator cabinet 1; the U-shaped lifting frame 42 is slidably arranged on the side surface of the vertical mounting plate 412; specifically, the vertical ear plates 411 are vertically installed at the two side ends of the vertical installation plate 41; the vertical ear plate 411 is provided with a second vertical sliding hole 412; the two ends of the bottom rod 421 are matched in the second vertical sliding hole 412 in a sliding manner; the lifting seat 45 is fixed on the bottom surface of the bottom rod 421;

the driving device 43 is arranged on the bottom side surface of the vertical mounting plate 41; the output end of the driving device 43 is connected with a screw 44; the screw rod 44 is in threaded connection with the lifting seat 45, the screw rod 44 penetrates through a through hole 423 formed in the bottom rod 421, and the screw rod 44 is perpendicular to the horizontal plane where the U-shaped lifting frame 42 is located, so that the U-shaped lifting frame 42 is driven to stably lift in the vertical direction when the screw rod 44 rotates; the supporting side rod 422 is matched in the first vertical sliding hole 31 in a sliding way; the two supporting side rods 422 are fixedly provided with the shelf 2.

The bottom of the vertical mounting plate 41 is provided with a horizontal chute 413; two sliding blocks 414 which are arranged in the horizontal sliding groove 413 in a sliding mode are symmetrically distributed on two sides of the driving device 43, and the two sliding blocks 414 are symmetrical relative to the driving device 43; two sides of the lifting seat 45 are symmetrically hinged with connecting rods 46; one end of the connecting rod 46 is hinged on the side surface of the sliding block 414; in addition, the upper and lower parts of one side surface of the vertical mounting plate 41 are correspondingly fixed with the horizontal mounting block 415; the driving device 43 is mounted on the bottom surface of the horizontal mounting block 415 located at the lower portion; the screw 44 is rotatably mounted between the horizontal mounting blocks 415.

When the lifting device is in actual use, the driving device 43 drives the screw 414 to rotate forwards or backwards, so as to drive the lifting seat 45 to move vertically and further drive the U-shaped lifting frame 42 and the shelf 2 to move vertically; the lifting of the shelf 2 is realized through a single driving device 43, so that the problem of unsynchronized lifting of the shelf 2 caused by a plurality of driving devices 43 is avoided; meanwhile, the connecting rods 46 hinged to the two sides of the lifting seat 45 are hinged to the sliding blocks 414, so that the problems that the lifting seat 45 is large in bearing force, unstable in movement and limited in service life due to the fact that weight is concentrated on the lifting seat 45 are solved, the structure is simple, cost is low, a user can conveniently reach objects on a refrigerator shelf, the objects on the shelf at the position can be conveniently taken and placed, and the space utilization rate of the refrigerator is optimized.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The refrigerator shelf automatic lifting device based on single driving comprises a refrigerator body (1) and a shelf (2), wherein an air duct (3) is arranged on the back inside the refrigerator body (1), and is characterized in that two first vertical sliding holes (31) are formed in the air duct (3); the automatic lifting device (4) is arranged in the air duct (3) and is arranged on the back of the refrigerator body (1);

the automatic lifting device (4) comprises a vertical mounting plate (41), a U-shaped lifting frame (42), a driving device (43), a screw rod (44) and a lifting seat (45); the U-shaped lifting frame (42) comprises a bottom rod (421) and two supporting side rods (422); the vertical mounting plate (412) is mounted on the back inside the refrigerator body (1); the U-shaped lifting frame (42) is slidably arranged on the side surface of the vertical mounting plate (412); the lifting seat (45) is fixed on the bottom surface of the bottom rod (421);

a driving device (43) is arranged on the bottom side surface of the vertical mounting plate (41); the output end of the driving device (43) is connected with a screw rod (44); the screw rod (44) is in threaded connection with the lifting seat (45), and the screw rod (44) penetrates through a through hole (423) formed in the bottom rod (421); the supporting side rod (422) is matched in a first vertical sliding hole (31) in a sliding way; and the two supporting side rods (422) are fixedly provided with a shelf (2).

2. The automatic refrigerator shelf lifting device based on single drive as claimed in claim 1, wherein the vertical mounting plate (41) is vertically mounted with vertical ear plates (411) at both side ends; a second vertical sliding hole (412) is formed in the vertical ear plate (411); the two ends of the bottom rod (421) are matched in the second vertical sliding hole (412) in a sliding mode.

3. The automatic refrigerator shelf lifting device based on single drive as claimed in claim 2, characterized in that the bottom of the vertical mounting plate (41) is provided with a horizontal chute (413); two sliding blocks (414) which are arranged in the horizontal sliding groove (413) in a sliding mode are symmetrically arranged on two sides of the driving device (43); two sides of the lifting seat (45) are symmetrically hinged with connecting rods (46); one end of the connecting rod (46) is hinged on the side surface of the sliding block (414).

4. The automatic refrigerator shelf lifting device based on single drive as claimed in claim 1 or 3, characterized in that the vertical mounting plate (41) has a side surface with a corresponding fixed horizontal mounting block (415) at the upper and lower parts; the driving device (43) is arranged on the bottom surface of a horizontal mounting block (415) positioned at the lower part; the screw (44) is rotatably mounted between the horizontal mounting blocks (415).