CN108800736A - A kind of refrigerator assistance door opening device - Google Patents

Abstract

The invention discloses a refrigerator door opening device, which comprises a refrigerator box, a door, a door seal and pins. The refrigerator box and the box door are hinged together through upper and lower hinges. A power-assisted door opening device is fixedly installed on the side, and the power-assisted door opening device includes a mounting seat, which is fixedly mounted on the side of the box door, and an axial mounting plate is fixedly mounted inside the mounting seat, and the axial mounting plate An ejection device is provided on the top, and a first fixing plate is arranged on the top of the ejection device. In the present invention, through the cooperative use of the cam and the ejector rod, the difference between the arm of the handle and the arm of the cam is utilized, and the leverage principle is cleverly used to achieve the purpose of assisting the door to be opened. Under the action, the camshaft is pushed to rotate in reverse, so that the handle returns to its original position. The whole system has a simple structure, novel concept, ingenious design, and is easy to implement.

Description

A device for assisting door opening of a refrigerator

technical field

The invention relates to the technical field of household electrical appliances, in particular to a device for assisting door opening of a refrigerator.

Background technique

As the most common product in household refrigeration products, refrigerators occupy an important market share. With the acceleration of residents' consumption upgrades, the volume of refrigerators is getting larger and larger. As the size of refrigerator doors increases, the suction of the door seals Correspondingly larger, it becomes more difficult to open the refrigerator door.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, an object of the present invention is to propose a refrigerator door-opening device, which adopts the cam ejector mechanism, utilizes the lever arm difference between the handle arm and the cam arm, and adopts the principle of leverage to achieve the purpose of saving effort in opening the door, which is labor-saving and easy. open the door.

A refrigerator door opening device according to an embodiment of the present invention includes a refrigerator box, a door, a door seal and pins, the refrigerator box and the door are hinged together through upper and lower hinges, and the sides of the door are fixed A power-assisted door-opening device is installed, and the power-assisted door-opening device includes a mounting seat, which is fixedly installed on the side of the box door, and an axial mounting plate is fixedly installed inside the mounting seat, and the top of the axial mounting plate is provided There is an ejector device, the top of the ejector device is provided with a first fixed plate, and the first fixed plate is fixedly connected with the axial mounting plate through pins, and a camshaft is arranged inside the mounting seat, and the camshaft The left and right ends of the camshaft are provided with a second fixing plate, the outside of the camshaft is provided with a handle, and the two ends of the bottom of the mounting seat are clamped with sealing covers.

Preferably, the ejector device includes a push rod, the push rod is located at the top of the axial mounting plate, the side of the push rod is provided with a baffle, one end of the push rod is in contact with the side of the camshaft, and the push rod The other end of the rod penetrates and extends to the outside of the mounting seat, a return spring is provided between the baffle plate and the inner wall of the mounting seat, and the movable sleeve of the return spring is on the outside of the push rod.

Preferably, the side of the camshaft is provided with two symmetrical first threaded holes, the middle part of the side of the camshaft is provided with a cam, the side of the cam is in contact with one end of the ejector rod, and the camshaft passes through the second The fixing plate and the pin are fixed on the top of the inner chamber of the mounting base.

Preferably, two symmetrical fixed blocks are fixedly installed on the bottom of the handle, the side of the fixed block is provided with a through hole suitable for the camshaft, and the bottom of the fixed block is provided with a first threaded hole. the second threaded hole.

Preferably, the handle is provided with two concave grooves.

Preferably, the camshaft is fixedly connected to the fixed block through pins.

Preferably, the side of the mounting seat is provided with an opening suitable for the ejector rod, and the diameter of the opening is larger than the diameter of the ejector rod.

The beneficial effect of the present invention is: through the cooperative use of the cam and the ejector rod, the lever principle is skillfully used to achieve the purpose of assisting the door to be opened by utilizing the difference in the arm of the handle and the arm of the cam. Under the action of the return spring, the ejector rod pushes the camshaft to reversely rotate, so that the handle returns to its original position. The whole system has simple structure, novel idea, ingenious design, and is easy to realize.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is an overall schematic diagram of a refrigerator door opening device and a refrigerator cabinet proposed by the present invention;

Fig. 2 is a sectional view at A place in Fig. 1 of the present invention;

Fig. 3 is a schematic structural view of a refrigerator door opening device proposed by the present invention;

Fig. 4 is an exploded view of the structure of a refrigerator door opening device proposed by the present invention;

Fig. 5 is a schematic diagram of a camshaft of a refrigerator door-opening device proposed by the present invention;

Fig. 6 is a schematic diagram of a handle of a refrigerator door opening device proposed by the present invention.

In the figure: 1 refrigerator box, 2 box door, 3 door seal, 4 pin, 5 power-assisted door opening device, 51 mounting seat, 52 axial mounting plate, 53 ejector device, 531 ejector rod, 532 baffle plate, 533 return spring , 54 first fixed plate, 55 camshaft, 551 first threaded hole, 552 cam, 56 second fixed plate, 57 handle, 571 fixed block, 572 through hole, 573 second threaded hole.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Examples of the described embodiments are shown in the drawings, wherein like or similar reference numerals designate like or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Referring to Figures 1-6, a refrigerator door opening device includes a refrigerator body 1, a door 2, a door seal 3 and a pin 4, the refrigerator body 1 and the door 2 are hinged together through upper and lower hinges, and the door 2 The side of the box door 2 is fixedly installed with a power-assisted door opening device 5, and the power-assisted door-opening device 5 includes a mounting seat 51, which is fixedly mounted on the side of the box door 2, and the inside of the mounting seat 51 is fixedly installed with an axial mounting plate 52, and the axial mounting plate 52 The top of the top is provided with an ejector device 53, and the ejector device 53 includes a ejector rod 531, which is located at the top of the axial mounting plate 52, and the side of the ejector rod 531 is provided with a baffle plate 532, and one end of the ejector rod 531 is connected to the camshaft 55 The sides are in contact, and the other end of the push rod 531 penetrates and extends to the outside of the mounting seat 51. A return spring 533 is arranged between the baffle plate 532 and the inner wall of the mounting seat 51, and the movable sleeve of the return spring 533 and the outside of the push rod 531 , the side of the mounting base 51 is provided with an opening that matches the ejector rod 531, and the aperture of the opening is larger than the diameter of the ejector rod 531, and the top of the ejector device 53 is provided with a first fixing plate 54, and the first fixing plate 54 The pin 4 is fixedly connected with the axial mounting plate 52, the inside of the mounting seat 51 is provided with a camshaft 55, the camshaft 55 is fixedly connected with the fixed block 571 through the pin 4, and the side of the camshaft 55 is provided with two symmetrical first threads Hole 551, the middle part of the side of camshaft 55 is provided with cam 552, and the side of cam 552 is in contact with one end of push rod 531, and camshaft 55 is fixed on the top of mounting seat 51 cavity by second fixing plate 56 and pin 4, and camshaft The left and right ends of the 55 are provided with a second fixed plate 56, the outside of the camshaft 55 is provided with a handle 57, the handle 57 is provided with two concave grooves, which is convenient for the user to operate, and the bottom of the handle 57 is fixedly installed with two symmetrical The fixed block 571, the side of the fixed block 571 is provided with the through hole 572 suitable for the camshaft 55, the bottom of the fixed block 571 is provided with the second threaded hole 573 suitable for the first threaded hole 551, the bottom of the mounting base 51 There are sealing covers 58 clamped at both ends of the cam, which is convenient for the installation of the cam 55 and plays a sealing role.

During work, when the box door 2 needs to be opened, pull the handle 57, because the handle 57 is fixed together with the camshaft 55 by the pin 4, the camshaft 55 is fixed by the second fixing plate 56 and can rotate along its own axis, so when When the handle 57 rotates, it drives the camshaft 55 to rotate. The camshaft 55 drives the cam 552 to move the push rod 531. The push rod 531 moves along the axial direction of the mounting plate 52 under the action of the cam 552. When the refrigerator box 1 is squeezed, a ejection force is generated. When the ejection force is greater than the suction force of the door seal 3, the door 2 is opened to complete the power-assisted door opening action; Under the action, it moves back along the axial direction, and drives the camshaft 55 and the handle 57 to rotate in reverse order, so that the handle 57 is reset.

To sum up, the power-assisted door-opening device of the refrigerator, through the cooperation of the cam 552 and the ejector rod 531, utilizes the difference in the force arm between the force arm of the handle 57 and the force arm of the cam 552, and cleverly uses the principle of leverage to achieve the effect of power-assisted door opening. Purpose: After the door is opened with assistance, the ejector rod 531 pushes the camshaft 55 to reversely rotate under the action of the return spring 533, so that the handle 57 returns to its original position. The whole system is simple in structure, novel in concept, ingenious in design and easy to implement; The cam ejector mechanism utilizes the difference between the arm of the handle and the arm of the cam, and adopts the principle of leverage to achieve the purpose of saving effort in opening the door, which saves effort and can open the door easily.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (7)

1. A refrigerator assist door opening device, comprising a refrigerator cabinet, a door, a door seal and pins, the refrigerator cabinet and the cabinet door are hinged together by upper and lower hinges, and it is characterized in that: the side of the cabinet door is fixed A power-assisted door-opening device is installed, and the power-assisted door-opening device includes a mounting seat, which is fixedly installed on the side of the box door, and an axial mounting plate is fixedly installed inside the mounting seat, and the top of the axial mounting plate is provided There is an ejector device, the top of the ejector device is provided with a first fixed plate, and the first fixed plate is fixedly connected with the axial mounting plate through pins, and a camshaft is arranged inside the mounting seat, and the camshaft The left and right ends of the camshaft are provided with a second fixing plate, the outside of the camshaft is provided with a handle, and the two ends of the bottom of the mounting seat are clamped with sealing covers. 2. The refrigerator door-opening device according to claim 1, characterized in that: the ejector device includes a push rod, the push rod is located on the top of the axial mounting plate, and the side of the push rod is provided with a baffle, so One end of the ejector rod is in contact with the side of the camshaft, and the other end of the ejector rod penetrates and extends to the outside of the mounting seat, a return spring is arranged between the baffle plate and the inner wall of the mounting seat, and the movement of the return spring Set with the outside of the top bar. 3. The refrigerator door-opening device according to claim 1, characterized in that: the side of the camshaft is provided with two symmetrical first threaded holes, the middle part of the side of the camshaft is provided with a cam, and the side of the camshaft is provided with a cam. The side is in contact with one end of the push rod, and the camshaft is fixed on the top of the inner chamber of the mounting seat through the second fixing plate and pins. 4. The refrigerator door opening device according to claim 1, characterized in that two symmetrical fixed blocks are fixedly installed on the bottom of the handle, and the side of the fixed block is provided with a through hole matching the camshaft , the bottom of the fixing block is provided with a second threaded hole matching the first threaded hole. 5. The refrigerator door opening device according to claim 1, characterized in that two concave grooves are provided on the handle. 6 . The refrigerator door opening device according to claim 1 , wherein the camshaft is fixedly connected to the fixed block through pins. 7 . 7. The refrigerator door opening device according to claim 1, characterized in that: the side of the mounting seat is provided with an opening matching the ejector rod, and the diameter of the opening is larger than the diameter of the ejector rod.