Automatic door opening and closing device of refrigerator

Abstract

The utility model discloses a refrigerator automatic door opening and closing device which comprises a driving structure, a transmission structure and a door plate, the driving structure comprises an electric push rod, the electric push rod is fixedly arranged, a rack is fixedly installed on a telescopic rod of the electric push rod, the length direction of the rack is arranged in the telescopic direction of the telescopic rod, and the transmission structure comprises a rotating shaft. The rotating shaft is fixedly arranged and rotatably installed, a gear is fixedly installed on the rotating shaft, the rack is connected with the gear in a meshed mode, two bent rods are fixedly installed on the rotating shaft in a spaced mode, and the ends of the two bent rods are fixedly connected with the door plate and can drive the door plate to turn over. According to the refrigerator, the storage space between the upper storage plate and the lower storage plate of the storage chamber of the refrigerator can be automatically opened and closed, the functions of cold insulation and cold leakage prevention are achieved, then energy consumption of the refrigerator is reduced, in addition, stored objects can be stored in a classified mode, and odor tainting is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, and in particular to an automatic door opening and closing device for a refrigerator. Background Art

[0002] Refrigerators are refrigeration devices designed to maintain a constant low temperature. To increase storage capacity and enhance user convenience, refrigerators typically feature multiple layers of shelves within their refrigerated storage compartments. The space between the shelves is used for storage. Currently, the front of the space between adjacent shelves is typically open, lacking a door panel to conceal it. Consequently, each time the door is opened, a significant amount of cooling energy is lost, reducing cooling efficiency and increasing the refrigerator's energy consumption.

[0003] In view of this, it is necessary to improve the existing technology. Utility Model Content

[0004] The purpose of the present invention is to provide an automatic door opening and closing device for a refrigerator, aiming to solve at least one of the technical problems existing in the above-mentioned prior art. To achieve the above-mentioned purpose, the technical solutions adopted are as follows:

[0005] A refrigerator automatic door opening and closing device includes a drive structure, a transmission structure and a door panel. The drive structure includes an electric push rod, which is fixedly arranged. A rack is fixedly installed on the telescopic rod of the electric push rod, and the length direction of the rack is arranged along the telescopic direction of the telescopic rod. The transmission structure includes a rotating shaft, which is fixedly arranged and rotatably installed. A gear is fixedly installed on the rotating shaft, and the rack is meshed with the gear. Two bent rods are also fixedly installed at intervals on the rotating shaft, and the ends of the two bent rods are fixedly connected to the door panel, which can drive the door panel to flip.

[0006] Preferably, the device is installed between the upper and lower storage boards of the refrigerator storage compartment.

[0007] Preferably, both ends of the rotating shaft are respectively mounted on corresponding positions of the side walls of the refrigerator storage compartment through bearings.

[0008] Preferably, the electric push rod is fixedly installed at a corresponding position on the side wall of the refrigerator storage compartment.

[0009] Preferably, the telescopic rod of the electric push rod is arranged downward.

[0010] Preferably, the rotating shaft drives the curved rod to rotate, which can drive the door panel to flip toward the bottom of the lower storage board, thereby opening the front opening between the two storage boards. The rotating shaft drives the curved rod to rotate in the opposite direction, which can drive the door panel to flip in the opposite direction, thereby covering the front opening between the two storage boards.

[0011] Preferably, the bent rod is arc-shaped with an arc angle of 45°.

[0012] Preferably, the gear is keyed to the shaft.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The utility model relates to an automatic door opening and closing device for a refrigerator, which can automatically realize the opening and closing of the storage space between the upper and lower storage boards of the refrigerator storage compartment, has the function of keeping cold and preventing cold leakage, thereby reducing the energy consumption of the refrigerator. In addition, it can also realize the classified storage of stored items to prevent odor contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the device of the utility model.

[0017] Figure 2 It is a schematic diagram of the assembly of the drive structure and transmission structure of the utility model.

[0018] In the figure: 1. Upper storage board; 2. Lower storage board; 3. Door panel; 4. Electric push rod; 5. Rack; 6. Rotating shaft; 7. Bearing; 8. Gear; 9. Bending rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0021] like Figures 1 to 2 As shown, a preferred embodiment of the present invention provides an automatic door opening and closing device for a refrigerator, which is installed at the front side of the storage space between the upper storage board 1 and the lower storage board 2 adjacent to the refrigerator storage compartment, thereby realizing the opening and closing of the storage space between the upper and lower storage boards, thereby improving the refrigeration effect of the refrigerator and reducing the energy consumption of the refrigerator.

[0022] The device comprises a drive structure, a transmission structure, and a door panel 3. The drive structure includes an electric push rod 4, which is fixedly mounted on a corresponding position on the side wall of the refrigerator storage compartment, with its telescopic rod facing downward. The push rod 4 is electrically connected to the refrigerator's main controller. A rack 5 is fixedly mounted on the telescopic rod, with its length extending in the same direction as the telescopic rod. The main controller controls the push rod 4, causing the rod to freely extend and retract, thereby driving the rack 5 to move up and down synchronously.

[0023] The transmission structure includes a rotating shaft 6, which is fixed and rotatably mounted. Specifically, each end of the rotating shaft 6 is mounted to a corresponding position on the side wall of the refrigerator storage compartment via bearings 7. A gear 8 is fixedly mounted on the rotating shaft 6. Specifically, the gear 8 is keyed to the rotating shaft 6, and the rack 5 is meshed with the gear 8. Two curved rods 9 are also fixedly mounted on the rotating shaft 6 at intervals. Specifically, the curved rods 9 are curved with an arc of 45 degrees. The ends of the two curved rods 9 are fixedly connected to the door panel 3.

[0024] When the controller controls the telescopic rod of the electric push rod 4 to extend downward, it drives the rack 5 to move downward, thereby driving the gear 8, the rotating shaft 6, and the two curved rods 9 to rotate counterclockwise in synchronization, thereby driving the door panel 3 to flip under the lower storage panel 2, thereby opening the front opening between the two storage panels. When the controller controls the telescopic rod of the electric push rod 4 to retract upward, it drives the rack 5 to move upward, thereby driving the gear 8, the rotating shaft 6, and the two curved rods 9 to rotate clockwise in synchronization, thereby driving the door panel 3 to flip upward, thereby closing the front opening between the two storage panels.

[0025] Of course, a control button for opening and closing the door panel can be set on the front side of the refrigerator door or on the control panel for user convenience.

[0026] To sum up, the automatic door opening and closing device of a refrigerator described in an embodiment of the utility model can automatically open and close the storage space between the upper and lower storage panels of the refrigerator storage compartment, has the function of keeping cold and preventing cold leakage, thereby reducing the energy consumption of the refrigerator. In addition, it can also realize the classified storage of stored items to prevent odor contamination.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A refrigerator automatic door opening and closing device, characterized in that: The device includes a driving structure, a transmission structure and a door panel. The driving structure includes an electric push rod, which is fixedly arranged. A rack is fixedly installed on the telescopic rod of the electric push rod, and the length direction of the rack is arranged along the telescopic direction of the telescopic rod. The transmission structure includes a rotating shaft, which is fixedly arranged and rotatably installed. A gear is fixedly installed on the rotating shaft, and the rack is meshed with the gear. Two bent rods are also fixedly installed at intervals on the rotating shaft, and the ends of the two bent rods are fixedly connected to the door panel, which can drive the door panel to flip.

2. The automatic door opening and closing device of a refrigerator according to claim 1, characterized in that: The device is installed between the upper and lower storage boards of the refrigerator storage compartment.

3. The automatic door opening and closing device of a refrigerator according to claim 2, characterized in that: Both ends of the rotating shaft are respectively mounted on corresponding positions of the side walls of the refrigerator storage compartment through bearings.

4. The automatic door opening and closing device of a refrigerator according to claim 2, characterized in that: The electric push rod is fixedly installed at a corresponding position on the side wall of the refrigerator storage compartment.

5. The automatic door opening and closing device of a refrigerator according to claim 4, characterized in that: The telescopic rod of the electric push rod is arranged downward.

6. The automatic door opening and closing device of a refrigerator according to claim 2, characterized in that: The rotating shaft drives the curved rod to rotate, which can drive the door panel to flip toward the bottom of the lower storage board, thereby opening the front opening between the two storage boards. The rotating shaft drives the curved rod to rotate in the opposite direction, which can drive the door panel to flip in the opposite direction, thereby covering the front opening between the two storage boards.

7. The automatic door opening and closing device of a refrigerator according to claim 6, characterized in that: The bent rod is arc-shaped with an arc angle of 45 degrees.

8. The automatic door opening and closing device for refrigerator according to claim 1, characterized in that: The gear is key-connected to the rotating shaft.

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