Hinge installation structure for wall-mounted cabinet door-type embedded household appliance, and refrigerator

Abstract

A hinge installation structure for a wall-mounted cabinet door-type embedded household appliance, comprising hinge bodies (3) installed between a household appliance body (1) and a household appliance door (2), wherein the household appliance body (1) and the household appliance door (2) are both embedded in a space formed by a cabinet body (4) and a cabinet door (5); each hinge body (3) comprises a body hinge (31) and a door hinge (32); the body hinge (31) has one end fixed on the household appliance body (1), and the other end extending towards the cabinet door (5); the door hinge (32) has one end fixed on the household appliance door (2), and the other end extending towards the corresponding cabinet door (5); a matching structure of each cam (33) and a corresponding equilateral triangle-shaped track frame (34) is formed between the other end of the body hinge (31) and the other end of the door hinge (32); and the matching structure can be accommodated in a corresponding clearance groove (51) formed in the cabinet door (5). Also provided is a refrigerator using the hinge installation structure. The hinge installation structure and the refrigerator can satisfy the small clearance requirement of the cabinet door, so that the household appliance door does not interfere with the cabinet body during closing.

Description

Hanging cabinet door type embedded household appliance hinge installation structure and refrigerator Technical Field

[0001] The invention belongs to the technical field of refrigerators, and in particular relates to a cabinet door-hanging embedded household appliance hinge installation structure and a refrigerator. Background Art

[0002] In November 2022, the applicant applied for an invention patent with the publication number "CN115288545A" and the name "Embedded Household Appliance Hinge and Refrigerator". By setting a cam on the hinge, a track frame in the shape of a regular triangle is provided on the door body of the household appliance. The rotation of the cam in the track frame can make the door body of the household appliance retract inward when opening, effectively avoiding the interference of the door body of the household appliance with deep and narrow spaces or other objects in the deep and narrow space when opening. Technical issues

[0003] Built-in refrigerators with hanging cabinet doors usually use a complex linkage mechanism to prevent interference between the doors of adjacent cabinets. This mechanism takes up a lot of space, is inconvenient to use due to the large amount of physical effort required to open and close the door, and has the disadvantages of complex manufacturing and high cost. Technical Solutions

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a cabinet door-hanging embedded appliance hinge installation structure that can achieve better coordination between the embedded appliance door body and the cabinet door, is easy to install, and does not affect the use effect of the above-mentioned hinge.

[0005] The present invention also provides a refrigerator using the above-mentioned cabinet door-hanging embedded household appliance hinge installation structure.

[0006] The first aspect of the present invention provides a cabinet door-hanging embedded appliance hinge installation structure, comprising a hinge body installed between the appliance box and the appliance door, wherein the appliance box and the appliance door are both embedded in the space formed by the cabinet body and the cabinet door; the hinge body comprises a box hinge and a door hinge, wherein one end of the box hinge is fixed to the appliance box and the other end extends toward the cabinet door, and one end of the door hinge is fixed to the appliance door and the other end extends toward the cabinet door, wherein the other end of the box hinge and the other end of the door hinge are interposed. The cam and the track frame form a matching structure, and the matching structure can be accommodated in a corresponding yield groove on the cabinet door; the track frame is in the shape of an equilateral triangle, and the cam includes two mirror-symmetrical short outer arc sides, and a long outer arc side that is mirror-symmetrical to the two mirror-symmetrical sides, the long outer arc side is tangent between the same sides of the two short outer arc sides, and the matching structure enables the inner side wall of the track frame to move along the outer side wall of the cam during the rotation of the home appliance door body relative to the home appliance box body, and during the movement, the outer side wall of the cam maintains contact and tangency with the inner side wall of the track frame at three points.

[0007] A second aspect of the present invention provides a refrigerator using the above-mentioned cabinet door-hanging embedded home appliance hinge installation structure, which includes a refrigerator body and a refrigerator door body on which the above-mentioned cabinet door-hanging embedded home appliance hinge installation structure is installed. Beneficial effects

[0008] The present invention improves the structure of the hinge, places its hinge point outside the appliance box and the appliance door, and integrates it with the hinge point of the cabinet body and the cabinet door. This not only solves the small gap requirement (3-5mm) of the cabinet door, but also prevents the appliance door from interfering with the cabinet body when opening and closing the cabinet door. It also has the advantages of simple structure, easy opening and closing of the door, and simple assembly.

[0009] The application of the above-mentioned improved hinge structure to built-in refrigerators with hanging cabinet doors not only solves the problem of interference between the cabinet door and the adjacent cabinet when opening the refrigerator door, but also has the advantages of saving space, reducing costs and providing user experience with easy opening and closing of the door.

[0010] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG1 is a schematic diagram of the installation structure of a cabinet body and a cabinet door;

[0012] Figure 2 is a schematic diagram of the installation structure of the refrigerator and the cabinet body;

[0013] Figure 3 is a schematic diagram of the installation structure of the hinge body (between the refrigerator body and the top surface of the hinge at the refrigerator door when the refrigerator door is closed);

[0014] FIG4 is a schematic diagram of the installation structure of the hinge body in FIG3 (exploded);

[0015] FIG5 is a schematic diagram of the back structure of a cabinet door;

[0016] Figures 6 and 8 are schematic diagrams of the installation structure of the hinge body (between the refrigerator body and the top surface of the hinge at the refrigerator door when the refrigerator door is half open);

[0017] FIG7 is a schematic diagram of the installation structure of the hinge body (between the refrigerator body and the bottom surface of the hinge at the refrigerator door when the refrigerator door is closed);

[0018] Figure 9 is a schematic diagram of the installation structure of the hinge body (between the refrigerator body and the bottom surface of the hinge at the refrigerator door when the refrigerator door is half open). Modes for Carrying Out the Invention

[0019] Taking the built-in refrigerator as an example, the doors of other built-in home appliances can be equivalent to the refrigerator door, and the appliance body can be equivalent to the refrigerator body, as long as the door has the feature of swinging open on the body (such as built-in dishwashers, washing machines, dryers, microwave ovens and ovens, etc.). Example 1

[0020] 1 and 2, the present embodiment provides a cabinet door type embedded household appliance hinge installation structure, including a hinge body 3 installed between a refrigerator body 1 and a refrigerator door body 2, the refrigerator body 1 is embedded in the cabinet body 4, and the refrigerator door body 2 is provided with a cabinet door 5 adapted to the opening of the cabinet body 4, and the refrigerator body 1 and the refrigerator door body 2 are both embedded in the space formed by the cabinet body 4 and the cabinet door 5; in order to solve the technical problems described in the background technology, the technical solution of this embodiment is, referring to FIG3 and 4, the hinge body 3 includes a cabinet hinge 31 and a door hinge 32, one end of the cabinet hinge 31 is fixed on the refrigerator body 1, and the other end extends toward the cabinet door 5, one end of the door hinge 32 is fixed on the refrigerator door body 2, and the other end extends toward the cabinet door 5, and the other end of the above-mentioned cabinet hinge 31 and the other end of the door hinge 32 constitute a cam as in the background technology. The matching structure of 33 and track frame 34 (the cam 33 is set on the box hinge 31, and the track frame 34 is set on the door hinge 32; or the track frame 34 is set on the box hinge 31, and the cam 33 is set on the door hinge 32). Specifically, the track frame 34 is in the shape of an equilateral triangle, and the cam 33 includes two short outer arc sides that are mirror-symmetrical, and a long outer arc side that is mirror-symmetrical to the two short outer arc sides, and the long outer arc side is tangent between the same sides of the two short outer arc sides. During the rotation of the refrigerator door body 2 relative to the refrigerator body 1, the inner side wall of the track frame 34 moves along the outer side wall of the cam 33, and during the movement, the outer side wall of the cam 33 maintains three points in contact with and tangent to the inner side wall of the track frame 34, and the other end of the above-mentioned box hinge 31 and the other end of the door hinge 32 extend out of the part of the refrigerator door body 2, which can be accommodated in the corresponding give way groove 51 opened on the cabinet door 5 as shown in Figure 5.

[0021] The hinge point of the hinge is extended from between the refrigerator body 1 and the refrigerator door body 2 to outside the refrigerator body 1 and the refrigerator door body 2, so that the hinge point becomes the common endpoint of the refrigerator door body 2 and the cabinet door 5 when they are opened. In this way, the cabinet door 5 can be directly installed on the surface of the refrigerator door body 2 through various connection methods such as bolt connection, so as to ensure the synchronization of the refrigerator door body 2 and the cabinet door 5 when opening (as shown in Figure 6). By utilizing the principle of axis change when the cam 33 and the track frame 34 make relative motion, when the door is opened, the door body will move away from the adjacent cabinet, thereby avoiding interference and thus avoiding affecting the use effect of the refrigerator hinge.

[0022] In addition, a clearance groove 51 for accommodating the above-mentioned hinge point is directly opened on the cabinet door 5. The clearance groove 51 is located on the back of the cabinet door 5, which does not affect the aesthetics of the cabinet door 5 and does not affect the connection between the cabinet door 5 and the refrigerator door body 2, and has the advantage of easy installation. Example 2

[0023] In this embodiment, the hinge bodies 3 are symmetrically mounted between the top and bottom surfaces at the hinged joints of the refrigerator body 1 and the door 2. The assembly directions of the cabinet hinge 31 and door hinge 32 between the top and bottom surfaces are opposite (i.e., as shown in FIG6 , the door hinge 32 is assembled above the cabinet hinge 31 on the bottom surface, but the cam 33 and track frame 34 still cooperate). The cabinet door 5 includes two sets of recesses 51, one upper and one lower, to accommodate the cam 33 and track frame 34 cooperation of the hinge bodies 3. The purpose is to utilize a dual-hinged assembly for smoother and more reliable door opening and closing, but this does not preclude the use of only one hinge from this embodiment in combination with a conventional hinge. Furthermore, those skilled in the art may adjust the number of recesses to suit the refrigerator type (double-door, four-door, French style, etc.). Example 3

[0024] In this embodiment, referring to Figures 4 and 8 , the top surface of the cabinet door 5 is higher than the top surface of the refrigerator door body 2. The top surface of the refrigerator door body 2 and the back surface of the cabinet door 5 are connected via an L-shaped connecting plate 7, thereby integrally securing the refrigerator door body 2 and the cabinet door 5. Specifically, the bottom portion of the L-shaped connecting plate 7 is secured to the top of the refrigerator door body 2 via bolts 6, while the front wall is connected to the back surface of the cabinet door 5 via bolts (not shown) passing through bolt holes 71 therein. This connection facilitates assembly of the refrigerator door body 2 and the cabinet door 5 without interfering with assembly of the cabinet door 5 with the cabinet body 4. Example 4

[0025] In this embodiment, referring to FIG9 , the bottom surface of the cabinet door 5 is lower than the bottom surface of the refrigerator door body 2. The bottom surface of the refrigerator door body 2 and the back surface of the cabinet door 5 are connected by an L-shaped connecting plate 7, thereby integrally fixing the refrigerator door body 2 and the cabinet door 5. Alternatively, to improve the installation aesthetics of the bottom surface of the refrigerator door body 2, a groove for accommodating the L-shaped connecting plate 7 may be provided on the bottom surface of the refrigerator door body 2. Example 5

[0026] In this embodiment, referring to Figure 9 , the door hinge 32 at the bottom of the refrigerator door 2 is fixed between the bottom of the refrigerator door 2 and the clearance groove 51 . The cabinet hinge 31 is connected to the center beam or bottom beam of the refrigerator cabinet 1 via a connector 8 , which is the center beam 9 in this figure. The connector 8 there connects the cabinet hinge 31 of the upper layer with the cabinet hinge 31 of the lower layer, and both are mounted on the center beam 9 . The door hinge 32 of the lower layer is then mounted on the refrigerator door 2 of the lower layer. Adaptability can be adjusted according to the type of refrigerator (double-door, four-door, French style, etc.). Example 6

[0027] This embodiment also provides a refrigerator using the above-mentioned cabinet door-hanging embedded home appliance hinge installation structure, which includes a refrigerator body 1 and a refrigerator door body 2 on which the above-mentioned cabinet door-hanging embedded home appliance hinge installation structure is installed.

[0028] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An embedded household appliance hinge installation structure for a hanging cabinet door, comprising a hinge body installed between a household appliance box body and a household appliance door body, wherein the household appliance box body and the household appliance door body are both embedded in a space formed by a cabinet body and a cabinet door, and is characterized in that: The hinge body includes a cabinet hinge and a door hinge. One end of the cabinet hinge is fixed to the household appliance cabinet, and the other end extends towards the cabinet door. One end of the door hinge is fixed to the household appliance door, and the other end extends towards the cabinet door. Between the other ends of the above-mentioned cabinet hinge and the door hinge, a matching structure of a cam and a track frame is formed, and the matching structure can be accommodated in a relief groove correspondingly opened on the cabinet door; the track frame is in an equilateral triangle shape, the cam includes two mirror-symmetrical short outer arc edges, and two mirror-symmetrical long outer arc edges. The long outer arc edges are tangent between the same sides of the two short outer arc edges. And during the process of the household appliance door rotating relative to the household appliance cabinet, the inner side wall of the track frame moves along the outer side wall of the cam, and during the movement, three points on the outer side wall of the cam always keep in contact with and tangent to the inner side wall of the track frame.

2. The hinge installation structure of the cabinet door type built-in household appliance according to claim 1, characterized in that: The hinge body is symmetrically installed between the top surface and the bottom surface at the hinge joint of the household appliance cabinet and the household appliance door. The assembly directions of the cabinet hinge and the door hinge between the top surfaces and between the bottom surfaces are opposite. The relief grooves on the cabinet door are two groups, upper and lower, which respectively accommodate the matching structures of the cams and the track frames of the upper and lower groups of hinge bodies.

3. The hinge installation structure for built-in household appliances of the hanging cabinet door type according to claim 2, characterized in that: The top surface / bottom surface of the cabinet door extends out of the top surface / bottom surface of the household appliance door, and the top surface / bottom surface of the household appliance door and the back surface of the cabinet door are connected by bolts through an L-shaped connecting plate.

4. The hinge mounting structure for built-in household appliances of the hanging cabinet door type according to claim 3, characterized in that: The door hinge under the household appliance door is fixed between the bottom of the household appliance door and the relief groove, and the cabinet hinge is connected to the middle beam or the bottom beam of the household appliance cabinet through a connecting piece.

5. A refrigerator using the hinge installation structure of the hanging cabinet door type embedded household appliance according to any one of claims 1-4, characterized in that: It includes a refrigerator cabinet and a refrigerator door equipped with the above-mentioned hanging cabinet door type embedded household appliance hinge installation structure.

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