CN111042694A

CN111042694A - Automatic door opening and closing device for refrigerator and refrigerator based on same

Info

Publication number: CN111042694A
Application number: CN201911345463.0A
Authority: CN
Inventors: 张魁仓; 李乾坤; 张卫卫
Original assignee: Changhong Meiling Co Ltd
Current assignee: Changhong Meiling Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-04-21

Abstract

The invention discloses an automatic door opening and closing device of a refrigerator and the refrigerator based on the same, and relates to the technical field of refrigerator devices. The invention comprises a gear box, a push rod, a connecting rod, a driving device and a speed reducer device; the gear box comprises a gear box body and a gear box cover which are fixed by screws and matched with each other; the driving device, the speed reducer device and the connecting rod are arranged in the gear box body in a mutually matched mode; the push rod is hinged with the connecting rod. The automatic opening and closing door of the refrigerator designed by the invention has the advantages of simple structure, low cost, simple installation process and large torque, and the automatic opening and closing of the refrigerator door body can be realized by using a single module.

Description

Automatic door opening and closing device for refrigerator and refrigerator based on same

Technical Field

The invention belongs to the technical field of refrigerator devices, and particularly relates to an automatic door opening and closing device of a refrigerator and the refrigerator based on the same.

Background

In the current market, most of refrigerators still open and close the door in a manual mode, and when a user holds articles by hands, the operation is very inconvenient. Some household electrical appliances manufacturers have released refrigerators that can be opened semi-automatically by touch, human body induction, voice, key and other modes, but the doors of these refrigerators cannot be opened to a required angle automatically, and have no automatic door closing function, so that the user experience is not good. The existing automatic door opening and closing scheme is mostly used in a multi-module matching mode, the cost is expensive, and the wide application is difficult to achieve.

Disclosure of Invention

The invention aims to provide an automatic door opening and closing device of a refrigerator and the refrigerator based on the same, and aims to overcome the defects in the prior art.

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

the invention relates to an automatic door opening and closing device for a refrigerator, which comprises a gear box, a push rod, a connecting rod, a driving device and a speed reducer device, wherein the gear box is arranged on the gear box; the gearbox comprises a gearbox body and a gearbox cover which are fixed through screws and matched with each other; the driving device, the speed reducer device and the connecting rod are all arranged in the gearbox body in a mutually matched mode; the push rod is hinged with the connecting rod.

Further, the driving device is installed in a motor groove of the gearbox body; the end of the driving device is provided with a motor shaft, and a worm is sleeved on the motor shaft.

Further, the speed reducer device comprises a first gear and a second gear which are meshed with each other, the speed reducer device further comprises a worm wheel meshed with the second gear, and the worm wheel is in transmission connection with the worm; the first gear, the second gear and the worm gear are all arranged in the gearbox body through a gear shaft; and a shaft hole D for mounting a gear shaft is arranged in the gear box body.

Furthermore, a guide rail is arranged in the gearbox body and penetrates through the gearbox body and extends to the outside of the gearbox body; screw holes are respectively arranged at two ends of the guide rail; a rack structure is arranged on one side surface of the push rod, and a sliding block which can be in sliding fit along the guide rail is arranged on the bottom side surface of the push rod; the end part of the push rod is also provided with a shaft hole A, and the rack structure is meshed with the first gear.

Further, the both ends of connecting rod are equipped with a shaft hole B respectively and in shaft hole B cooperation is installed bearing B, the one end of connecting rod is articulated mutually with the one end that the push rod was equipped with shaft hole A.

Further, the driving device is a motor.

The refrigerator comprises the automatic opening and closing door device for the refrigerator, wherein the automatic opening and closing door device for the refrigerator is arranged at the top and/or the bottom of a refrigerator body.

Further, the refrigerator comprises a refrigerator body and a door body; the box body is connected with the door body through a hinge, and one end of the hinge is fixed at the top of the box body through a bolt; the other end of the hinge is provided with a rotating shaft, the top of the door body is provided with a shaft hole C matched with the rotating shaft, and a bearing C is installed between the shaft hole C and the rotating shaft in a matched mode.

Furthermore, the side of the gear box body is provided with a fixing block and bolt holes are formed in the fixing block, and the automatic refrigerator door opening and closing device is fixed on the box body through the bolt holes.

Furthermore, the end part of a connecting rod of the automatic door opening and closing device of the refrigerator is hinged on the door body; the door body is provided with a hinged shaft matched with the bearing B.

The invention has the following beneficial effects:

the automatic opening and closing door of the refrigerator designed by the invention has the advantages of simple structure, low cost, simple installation process and large torque, and the automatic opening and closing of the refrigerator door body can be realized by using a single module.

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 view of a refrigerator according to the present invention in a closed state;

FIG. 2 is a schematic view illustrating an opened state of a refrigerator according to the present invention;

FIG. 3 is a schematic view of the internal mounting of the gearbox of the present invention;

FIG. 4 is an exploded view of an automatic door opening and closing apparatus according to the present invention;

fig. 5 is a schematic view of the structure of the push rod of the present invention.

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 "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Referring to fig. 1-5, the present invention relates to an automatic door opening and closing device for a refrigerator, which comprises a gear box 41, a push rod 42, a connecting rod 43, a driving device 44 and a decelerator device; the gear box 41 comprises a gear box body 411 and a gear box cover 412 which are fixed through screws and matched with each other; the driving device 44, the speed reducer device and the connecting rod 43 are all arranged in the gear box body 411 in a matched mode; the push rod 42 is hinged to the link 43.

Wherein, the driving device 44 is arranged in a motor groove of the gearbox body 411; the end of the driving device 44 is provided with a motor shaft 441, and the motor shaft 441 is sleeved with a worm 451.

The reducer device comprises a first gear 453 and a second gear 454 which are meshed with each other, the reducer device further comprises a worm wheel 452 meshed with the second gear 454, and the worm wheel 452 is in transmission connection with the worm 451; the first gear 453, the second gear 454 and the worm gear 452 are all mounted in the gear case 411 through a gear shaft 46; a shaft hole D4113 for mounting the gear shaft 46 is formed in the gear box body 411.

A guide rail 4111 is arranged in the gear box body 411, and the guide rail 4111 penetrates through the gear box body 411 and extends to the outside of the gear box body 411; screw holes 4112 are respectively arranged at two ends of the guide rail 4111; a rack structure 421 is arranged on one side surface of the push rod 42, and a sliding block 422 which can be in sliding fit along the guide rail 4111 is arranged on the bottom side surface of the push rod 42; the end of the push rod 42 is further provided with a shaft hole a423, and the rack gear 421 is engaged with the first gear 453.

Wherein, both ends of the connecting rod 43 are respectively provided with a shaft hole B and are provided with a bearing B431 in the shaft hole B in a matching way, and one end of the connecting rod 43 is hinged with one end of the push rod 42 provided with the shaft hole a 423.

The driving device 44 is a motor.

The refrigerator comprises the automatic opening and closing door device for the refrigerator, and the automatic opening and closing door device for the refrigerator is arranged at the top and/or the bottom of a refrigerator body.

The refrigerator comprises a refrigerator body 1 and a door body 2; the refrigerator body 1 is connected with the door body 2 through a hinge 3, and one end of the hinge 3 is fixed at the top of the refrigerator body 1 through a bolt; the other end of the hinge 3 is provided with a rotating shaft, the top of the door body 2 is provided with a shaft hole C matched with the rotating shaft, and a bearing C31 is arranged between the shaft hole C and the rotating shaft in a matching manner.

Wherein, the week side of gear box 411 sets up the fixed block and sets up bolt hole 4114 on the fixed block, and refrigerator automatic door opening and closing device passes through bolt hole 4114 to be fixed on box 1.

The end part of a connecting rod of the automatic door opening and closing device of the refrigerator is hinged on the door body 2; the door body 2 is provided with a hinge shaft 21 engaged with the bearing B431.

A crank sliding block mechanism is formed among the push rod 42, the connecting rod 43, the box body 1 and the door body 2, wherein the push rod 42 serves as a sliding block, the door body 2 serves as a crank, the box body 1 serves as a rack, and the sliding block is connected with the crank through the connecting rod 43.

When the door is opened, the driving device 44 rotates forwards, the speed is reduced by the speed reducer, the circular motion of the motor is converted into the linear motion of the push rod 42 through the gear rack, the push rod 42 moves forwards, the thrust of the push rod 42 is transmitted to the door body 2 through the connecting rod 43 and is converted into the circular motion of the door body 2, and the door body 2 is driven to be opened automatically.

When the door is closed, the driving device 44 rotates reversely, the speed is reduced by the speed reducer, the circular motion of the motor is converted into the linear motion of the push rod 42 through the gear rack, the push rod 42 moves backwards, the pulling force of the push rod 42 is transmitted to the door body 2 through the connecting rod 43, the circular motion of the door body 2 is converted, and the door body 2 is driven to be closed automatically.

The invention realizes the automatic opening and closing of the door body 2 by utilizing the principle of a crank slider mechanism.

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 utility model provides a refrigerator automatic switch door gear which characterized in that: comprises a gear box (41), a push rod (42), a connecting rod (43), a driving device (44) and a speed reducer device;

the gear box (41) comprises a gear box body (411) and a gear box cover (412) which are fixed through screws and matched with each other;

the driving device (44), the speed reducer device and the connecting rod (43) are all arranged in the gearbox body (411) in a matched mode; the push rod (42) is hinged with the connecting rod (43).

2. An automatic door opening and closing device for a refrigerator according to claim 1, wherein said driving means (44) is installed in a motor groove of said gear case body (411); the end of the driving device (44) is provided with a motor shaft (441), and the motor shaft (441) is sleeved with a worm (451).

3. An automatic door opening and closing device for a refrigerator according to claim 2, wherein the decelerator device comprises a first gear (453) and a second gear (454) engaged with each other, the decelerator device further comprises a worm wheel (452) engaged with the second gear (454), the worm wheel (452) is in transmission connection with the worm (451);

the first gear (453), the second gear (454) and the worm wheel (452) are all installed in the gearbox box body (411) through a gear shaft (46);

and a shaft hole D (4113) for mounting a gear shaft (46) is arranged in the gear box body (411).

4. An automatic door opening and closing device for a refrigerator according to claim 3, wherein the gear box body (411) is provided with a guide rail (4111) therein, and the guide rail (4111) penetrates the gear box body (411) and extends to the outside of the gear box body (411); screw holes (4112) are respectively arranged at two ends of the guide rail (4111);

a rack structure (421) is arranged on one side surface of the push rod (42), and a sliding block (422) which can be in sliding fit along a guide rail (4111) is arranged on the bottom side surface of the push rod (42); the end part of the push rod (42) is also provided with a shaft hole A (423),

the rack structure (421) is engaged with the first gear (453).

5. An automatic door opening and closing device for a refrigerator according to claim 1, wherein the connecting rod (43) has a shaft hole B at each end and a bearing B (431) is fitted in the shaft hole B, and one end of the connecting rod (43) is hinged to the end of the push rod (42) having the shaft hole A (423).

6. An automatic door opening and closing device for a refrigerator according to claim 1, wherein said driving means (44) is a motor.

7. A refrigerator comprising an automatic door opening and closing apparatus for a refrigerator according to any one of claims 1 to 6;

the automatic opening and closing door device of the refrigerator is arranged at the top and/or the bottom of the refrigerator body.

8. The refrigerator according to claim 7, characterized in that the refrigerator comprises a refrigerator body (1) and a door body (2); the refrigerator body (1) is connected with the door body (2) through a hinge (3), and one end of the hinge (3) is fixed to the top of the refrigerator body (1) through a bolt;

the other end of hinge (3) sets up the pivot, the top of the door body (2) is provided with the shaft hole C with pivot matched with, bearing C (31) are installed in the cooperation between shaft hole C and the pivot.

9. The refrigerator according to claim 7, wherein a fixing block is provided on a peripheral side of the gear box body (411) and a bolt hole (4114) is provided on the fixing block, and the automatic door opening and closing device for the refrigerator is fixed on the refrigerator body (1) through the bolt hole (4114).

10. The refrigerator according to claim 7, wherein the end of the link of the automatic door opening and closing device is hinged on the door body (2); the door body (2) is provided with a hinged shaft (21) matched with the bearing B (431).