Nautilus gear reversing structure for automatic door opening device of refrigerator

Abstract

The utility model belongs to the technical field of refrigerators, and particularly relates to a nautilus gear reversing structure for an automatic door opener of a refrigerator, which comprises a speed change reversing gear mounted at the output end of a motor, the speed change reversing gear is of a multilayer design, and the speed change reversing gear is meshed with a left speed change driving gear and a right speed change driving gear through gears. The left variable-speed driving gear and the right variable-speed driving gear are mounted through rotating shafts; the function of changing the rotating speed and the rotating force in the movement process is achieved through the nautilus gear meshing structure, the effect that the door opening force of the refrigerator is large and small in sequence, and the door opening speed is slow and high in sequence is achieved, and the structure is simple and reliable. When the nautilus gear meshing structure works, lubricating oil can be evenly smeared to the joint faces of the gears on the two sides, the maintenance frequency is reduced, and the failure rate and the needed maintenance frequency are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to refrigerator technical field, specifically speak to the nautilus gear reversing structure for refrigerator automatic door opening device. BACKGROUND

[0002] The refrigerator is a kind of household appliance for food storage and preservation, reduces internal temperature by refrigeration technology, to extend the preservation period of food.The working principle of refrigerator mainly relies on refrigeration cycle, including four steps of compression, condensation, expansion and evaporation.Compressor compresses refrigerant gas into high-temperature and high-pressure gas, high-pressure gas flows into condenser, becomes liquid after heat dissipation, liquid refrigerant passes through expansion valve, pressure drops, temperature drops, low-pressure liquid absorbs heat in evaporator, converts into gas, reduces the temperature inside the refrigerator.

[0003] In the existing refrigerator automatic door opening technology, there are the following problems.For example, for double-door refrigerator, the common door opening device adopts single door opening device to control single sash door opening, or single door opening device controls two sash doors to open.Single door opening device controls single sash door, which increases the use of driving equipment and improves the complexity of control logic;And single door opening device controls two sash doors to open, which is often applied to French double-door refrigerator, and the same storage box is usually arranged in two sash doors, so that users only need to open one sash door, and user experience is poor.

[0004] Therefore, the utility model provides nautilus gear reversing structure for refrigerator automatic door opening device. UTILITY MODEL CONTENTS

[0005] In order to make up for the deficiencies of prior art, at least one technical problem in the background art is solved.

[0006] The utility model solves the technical scheme that the utility model discloses nautilus gear reversing structure for refrigerator automatic door opening device, including the variable speed reversing gear of being installed on the motor output, the variable speed reversing gear is multilayer design, the variable speed reversing gear has left variable speed drive gear and right variable speed drive gear through gear engagement, left variable speed drive gear and right variable speed drive gear are all installed through the shaft.

[0007] Further, the variable speed reversing gear is three-layer mechanism design, the variable speed reversing gear is divided into top tooth, middle tooth and bottom tooth, middle tooth is standard gear, and top tooth and bottom tooth are all variable-diameter gear.

[0008] Further, the left variable speed drive gear and the right variable speed drive gear are both nautilus type.

[0009] Further, the right variable speed drive gear is double-sided design, and the bottom gear of the right variable speed drive gear is one-half design.

[0010] Further, the left variable speed drive gear is a double-layer design, the upper gear of the left variable speed drive gear is a half design, and the left variable speed drive gear and the right variable speed drive gear are symmetric designs.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. The nautilus gear reversing structure for the automatic door opening device of the refrigerator, by using the nautilus gear meshing structure, the function of changing the rotating speed and the rotating force during the movement is realized, the effect that the opening force of the refrigerator is large first and small later and the opening speed is slow first and fast later is realized, and the structure is simple and reliable. The nautilus gear meshing structure can uniformly smear lubricating oil on the two gear joint surfaces during work, reduces the maintenance frequency, reduces the failure rate and the required maintenance frequency. At the same time, the variable speed reversing gear can drive the two side gears to rotate through forward and reverse rotation, and can realize the effect that one set of device opens two doors when applied in a double-door refrigerator, and optimizes the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0013] The present application will be further described below in combination with the drawings.

[0014] Fig. 1 is a schematic diagram of the three-dimensional structure of the present application;

[0015] Fig. 2 is a schematic diagram of the top view structure of the variable speed reversing gear in the present application;

[0016] Fig. 3 is a schematic diagram of the bottom view structure of the variable speed reversing gear in the present application.

[0017] In the figure: 1a, left variable speed drive gear; 1b, right variable speed drive gear; 2, variable speed reversing gear. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application will be further described below in combination with specific embodiments.

[0019] For example, Figs. 1-3As shown, the nautilus gear reversing structure for the automatic door opening device of the refrigerator, comprising a variable speed reversing gear 2 installed on the output end of the motor, the variable speed reversing gear 2 is designed in multiple layers, the variable speed reversing gear 2 is engaged with a left variable speed drive gear 1a and a right variable speed drive gear 1b through gears, and the left variable speed drive gear 1a and the right variable speed drive gear 1b are both installed through a rotating shaft. The variable speed reversing gear 2 is designed in three layers, the variable speed reversing gear 2 is divided into top teeth, middle teeth and bottom teeth, the middle teeth are standard gears, and the top teeth and the bottom teeth are variable diameter gears. The left variable speed drive gear 1a and the right variable speed drive gear 1b are both nautilus type. The right variable speed drive gear 1b is designed on both sides, and the bottom gear of the right variable speed drive gear 1b is designed in half. The left variable speed drive gear 1a is designed in double layers, the upper gear of the left variable speed drive gear 1a is designed in half, and the left variable speed drive gear 1a and the right variable speed drive gear are designed symmetrically.

[0020] When working, the middle teeth of the variable speed reversing gear 2 are engaged with the driving single-layer gear in the device, the top teeth of the variable speed reversing gear 2 are engaged with the variable speed drive gear, and the bottom teeth of the variable speed reversing gear 2 are engaged with the variable speed drive gear. The output end of the motor drives the variable speed reversing gear 2 to rotate (the motor can realize forward and reverse rotation, and then drives the variable speed reversing gear 2 to rotate forward and reverse), and when the variable speed reversing gear 2 rotates forward or reverses, the left variable speed drive gear 1a and the right variable speed drive gear 1b can rotate at the same time. When the variable diameter gear is engaged, the dividing circle radius of the driven gear and the driving gear in the engaged part changes constantly, so that the transmission ratio changes, thereby realizing the variable speed and variable force requirements of the whole device.

[0021] The function of changing the rotation speed and the rotation force during movement is realized by using the nautilus gear engagement structure, the opening force of the refrigerator door is large at first and small later, the opening speed of the refrigerator door is slow at first and fast later, and the structure is simple and reliable. The nautilus gear engagement structure can uniformly apply lubricating oil to the engagement surfaces of the two gears during work, thereby reducing the maintenance frequency, the failure rate and the required maintenance frequency. Meanwhile, the variable speed reversing gear 2 can drive the two side gears to rotate through forward and reverse rotation, and when applied to a double-door refrigerator, one set of device can open two doors, thereby optimizing the user experience.

[0022] When working, the middle teeth of the variable speed reversing gear 2 are engaged with the driving single-layer gear in the device, the top teeth of the variable speed reversing gear 2 are engaged with the variable speed drive gear, and the bottom teeth of the variable speed reversing gear 2 are engaged with the variable speed drive gear. The output end of the motor drives the variable speed reversing gear 2 to rotate, and when the variable speed reversing gear 2 rotates forward or reverses, the left variable speed drive gear 1a and the right variable speed drive gear 1b can rotate at the same time. When the variable diameter gear is engaged, the dividing circle radius of the driven gear and the driving gear in the engaged part changes constantly, so that the transmission ratio changes, thereby realizing the variable speed and variable force requirements of the whole device.

[0023] The above-mentioned front, rear, left, right, top and bottom are based on the drawings of the specification Fig. 1 as a reference, according to the standard of the human observation angle, the side of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0025] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A nautiloid gear reversing structure for an automatic door opening device of a refrigerator, characterized in that: Including the variable speed reversing gear (2) installed on the motor output, the variable speed reversing gear (2) is a multi-layer design, the variable speed reversing gear (2) is engaged with left variable speed drive gear (1a) and right variable speed drive gear (1b) through gear, the left variable speed drive gear (1a) and the right variable speed drive gear (1b) are both installed through the rotating shaft.

2. The ammonite gear reversing structure for the automatic door opening device of a refrigerator according to claim 1, characterized in that: The variable speed reversing gear (2) is a three-layer mechanism design, the variable speed reversing gear (2) is divided into top teeth, middle teeth and bottom teeth, the middle teeth are standard gears, and the top teeth and the bottom teeth are variable diameter gears.

3. The ammonite gear reversing structure for the automatic door opening device of a refrigerator according to claim 1, characterized in that: The left variable speed drive gear (1a) and the right variable speed drive gear (1b) are both nautilus type.

4. The ammonite gear reversing structure for the automatic door opening device of a refrigerator according to claim 1, characterized in that: The right variable speed drive gear (1b) is a double-sided design, and the bottom gear of the right variable speed drive gear (1b) is a one-half design.

5. The nautiloid gear reversing structure for the automatic door opening device of a refrigerator according to claim 1, characterized in that: The left variable speed drive gear (1a) is a double-layer design, the upper gear of the left variable speed drive gear (1a) is a one-half design, and the left variable speed drive gear (1a) and the right variable speed drive gear (1b) are a symmetrical design.

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