CN111395900A - Refrigerator single-rail embedded hinge - Google Patents

Abstract

The invention discloses a single-rail embedded hinge of a refrigerator, which comprises a mounting plate, an extension plate, a refrigerator door, a refrigerator body and a refrigerator storage cavity, wherein a rotating shaft is respectively and rotatably fixed on opposite surfaces of the mounting plate and the refrigerator door, the two rotating shafts are connected through a horizontally arranged rotating plate, two ends of the rotating plate are respectively rotatably sleeved with the two rotating shafts, an embedded groove for embedding the two rotating shafts and the embedded shaft is formed in the mounting plate or the refrigerator door, the refrigerator door is connected with the mounting plate in a limiting way through a guide sliding groove and a sliding groove guide shaft for guiding the movement of the refrigerator door, and the sliding groove guide shaft is slidably arranged in the guide sliding groove in; the invention realizes the hinged rotation of the box door by utilizing the transmission rotating mechanism with the rotating plate, and can realize the normal opening and closing of the box door and the box body, the box door and the front panel of the non-moving storage cavity under the regulation of the minimum distance by arranging two sections of arc-shaped grooves with different retraction functions through the guide sliding chute, thereby greatly reducing the clearance between the box door and the box body as well as the refrigerator main body and being more suitable for the installation of the refrigerator main body embedded in the box body.

Description

A refrigerator monorail embedded hinge

technical field

The invention specifically relates to a refrigerator hinge, in particular to a refrigerator monorail embedded hinge.

Background technique

The cabinet and the door of the refrigerator are generally connected by hinges. At present, the installation space of refrigerators is often small and limited, especially the built-in refrigerators that are installed in the electrical cabinet as a whole. The door is driven by the hinge during the opening and closing process. , in order to ensure that the side wall of the hinge of the box door does not collide with the cabinet during the opening process, it is necessary to reserve a certain gap between the refrigerator and the cabinet. Closely embedded installation, the gap is too small, and it is easy to collide with the cabinet when opening and closing the door, resulting in the case that the door cannot fully turn on the light.

At present, many double-slot-guided hinges are used in the market to realize the rail-change movement during the opening and closing process of the box door, which is mainly used to realize the freedom of opening and closing of the side wall of the refrigerator under the minimum cabinet clearance. Improve the adjustment of the precise movement trajectory of the box door, but the double slot is prone to dislocation interference, high matching accuracy requirements, high processing and production costs, better stability of single slot, simple structure, low processing and assembly cost, and has good advantages. Moreover, at present, the gap between the box door and the cabinet wall is mostly aimed at. During the opening and closing process of the built-in box door, the gap between the box door and the refrigerator body generally needs to be reserved. When the reservation is too large, the box door needs to be reserved. A wider sealing strip ensures the tightness of the box door and the inner cavity of the refrigerator. Therefore, in view of the above problems, we need a normal opening and closing device that can realize the minimum gap between the box door and the cabinet body and the minimum gap between the box door and the refrigerator body. Monorail trough refrigerator hinge unit.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a refrigerator monorail embedded hinge, so as to solve the above-mentioned problems in the background art.

To achieve the above object, the present invention provides the following technical solutions:

A refrigerator monorail embedded hinge, comprising a mounting plate, an extension plate, a box door, a cabinet body and a refrigerator storage cavity, the refrigerator main body formed by the box door and the refrigerator storage cavity is integrally embedded and installed between multiple cabinet bodies , the top and bottom sides of the box door are hinged on the upper and lower side panels of the opening of the refrigerator storage cavity through the mounting plate, and a rotating shaft is rotated and fixed on the opposite surface of the mounting plate and the box door, and two The rotating shafts are connected by a horizontally arranged rotating plate, the two ends of the rotating plate are respectively rotatably sleeved with the two rotating shafts, and the mounting plate or the box door is provided with an embedded groove for inserting the two rotating shafts and the box door. It is connected with the mounting plate through the guide chute for guiding the movement of the box door and the chute guide shaft, and the chute guide shaft slides through the guide chute.

Further solution: the guide chute includes a rail wall retraction groove for guiding the box door to retract away from the cabinet body and a refrigerator main body retraction groove for guiding the box door to retract away from the refrigerator storage cavity. The wall retraction groove and the refrigerator main body retraction groove are two continuous arc grooves with different bending degrees.

A further solution: when the box door is closed, the guide shaft of the chute slides through the end of the rail wall retraction groove, the center of the circle corresponding to the largest arc segment of the rail wall retraction groove is X, and the level of the box door is X. The front and rear ends of the section and the adjacent sides of the cabinet are set as M and N, then the length of the line segment MX is less than the minimum horizontal distance between the X point and the cabinet body, and the length of the line segment MX is less than the horizontal distance between the X point and the front panel of the refrigerator storage cavity;

When the box door is opened and closed to the maximum angle, the guide shaft of the chute slides through the end of the retracting groove of the refrigerator main body. The front and rear ends of the adjacent sides of the cabinet are set as M and N, the length of the line segment MY is less than the horizontal distance between the Y point and the front panel of the refrigerator storage cavity, and the length of the line segment NY is less than the Y point and the refrigerator storage cavity front panel. Horizontal distance.

A further solution: the mounting plate is fixedly mounted on the front panel of the storage cavity of the refrigerator, the mounting plate includes an extension plate vertically fixed on the front panel of the mounting plate, and the top edge and bottom edge of the box door are respectively covered horizontally. An extension plate is combined, and the cover joint of the box door and the extension plate is provided with an embedded groove for embedding the two rotating shafts and the rotating plate.

A further solution: the embedded groove is set on the box door, the guide chute is set on the inner bottom surface of the embedded groove, the guide shaft of the chute is rotatably fixed on the mounting plate, and the two rotating shafts include a fixed A shaft and a connecting shaft, a connecting shaft hole is opened in the embedded groove, one end of the connecting shaft is rotated through the connecting shaft hole, and the other end of the connecting shaft is vertically fixed on the outer end surface of the rotating plate, and the rotating plate The inner end is rotatably fixed on the extension plate through a fixed shaft, and the connecting shaft is arranged in parallel with the guide shaft of the chute.

A further solution: the embedded groove is set on the box door, the guide chute is set on the extension plate, the guide shaft of the chute is rotatably fixed on the box door, and the two rotating shafts include a fixed shaft and a connecting shaft. A rotating shaft, a connecting shaft hole is opened in the embedded groove, one end of the connecting rotating shaft rotates and passes through the connecting shaft hole, and the other end of the connecting rotating shaft is vertically fixed on the outer end surface of the rotating plate, and the inner end of the rotating plate is fixed vertically. It is rotatably fixed on the extension plate through a fixed shaft, and the connecting shaft is arranged in parallel with the guide shaft of the chute.

Compared with the prior art, the beneficial effects of the present invention are: the present invention utilizes the rotating plate and the shaft to realize the shaft rotation of the box door, and the guide chute is provided with two arc-shaped grooves with different retraction functions, so that the box door and the box door can be connected with each other. The normal opening and closing of the cabinet body, the box door and the front panel of the refrigerator storage cavity under the adjustment of the minimum distance greatly reduces the gap between the box door and the cabinet body and the main body of the refrigerator, and is more suitable for the installation of the refrigerator body embedded in the cabinet body, and can be Realize the opening and closing maintenance, which is convenient for the opening and closing operation of the box door.

Description of drawings

FIG. 1 is a schematic structural diagram of a refrigerator monorail embedded hinge when the box door is closed.

FIG. 2 is a schematic structural diagram of the refrigerator monorail embedded hinge when the box door is opened.

FIG. 3 is a schematic structural diagram of the transmission and rotation mechanism when the box door in the monorail embedded hinge of the refrigerator is closed.

FIG. 4 is a schematic structural diagram of the transmission and rotation mechanism when the box door in the monorail embedded hinge of the refrigerator is opened.

FIG. 5 is a schematic structural diagram of an embedded groove in a monorail embedded hinge of a refrigerator.

FIG. 6 is a schematic structural diagram of a refrigerator main body with a single-rail embedded hinge of a refrigerator installed between multiple cabinets.

Figure 7 is the trajectory analysis diagram of points M and N when the door of the refrigerator monorail embedded hinge is closed.

Fig. 8 is a locus diagram of points M and N when the door of the refrigerator monorail embedded hinge is closed and opened.

FIG. 9 is a movement trajectory diagram of point N of the box door in the monorail embedded hinge of the refrigerator.

FIG. 10 is a motion trajectory diagram of point M of the box door in the monorail embedded hinge of the refrigerator.

Fig. 11 is a schematic structural diagram of the refrigerator monorail embedded hinge when the box door is opened (Example 2).

In the figure: mounting plate 1, extension plate 10, chute guide shaft 11, fixed shaft 12, rotating plate 13, connecting shaft 14, box door 2, embedded groove 20, guide chute 21, rail wall retraction groove 210, The refrigerator main body retracting groove 211 , the connecting shaft hole 22 , the cabinet 3 , and the refrigerator storage cavity 4 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

Referring to FIGS. 1 to 10, in an embodiment of the present invention, a refrigerator monorail embedded hinge includes a mounting plate 1, an extension plate 10, a box door 2, a cabinet body 3 and a refrigerator storage cavity 4, the box door 2 and all The refrigerator main body formed by the refrigerator storage cavity 4 is integrally embedded and installed between a plurality of cabinet bodies 3, and the one-side top edge and bottom edge of the box door 2 are hinged on the upper and lower sides of the opening of the refrigerator storage cavity 4 through the mounting plate 1. On the panel, a rotating shaft is respectively rotated and fixed on the opposite surfaces of the mounting plate 1 and the box door 2. The two rotating shafts are connected by a horizontally arranged rotating plate 13, and the two ends of the rotating plate 13 are respectively rotated with the two rotating shafts. Sleeve connection, the box door 2 and the mounting plate 1 are connected by the guide chute 21 for guiding the movement of the box door 2 and the chute guide shaft 11, and the chute guide shaft 11 slides through the guide chute 21. Inside.

The guide chute 21 includes a rail wall retraction groove 210 for guiding the box door 2 to retract away from the cabinet body 3 and a refrigerator body retraction groove for guiding the box door 2 to retract away from the refrigerator storage cavity 4 . 211, the rail wall retracting groove 210 and the refrigerator main body retracting groove 211 are two circular arc grooves with different degrees of curvature and continuous communication.

When the box door 2 is closed, the chute guide shaft 11 slides through the end of the rail wall retraction groove 210, the center of the circle corresponding to the largest arc segment of the rail wall retraction groove 210 is X, and the level of the box door 2 is X. The front and rear ends of the cross section and the adjacent sides of cabinet 3 are set to M and N, and the line segment MX is used as the radius to make a circle to form a circle B, then the length of the line segment MX is less than the minimum horizontal distance between the X point and the cabinet 3 and the length of the line segment MX is less than The horizontal distance between point X and the front panel of the storage cavity 4 of the refrigerator. Here, it is ensured that point M on the box door 2 will not be in contact with the side wall of the cabinet 3 when the box door 2 is opened, that is, when the point M rotates counterclockwise. It will be in contact with the front panel of the refrigerator storage cavity 4, and the line segment NX is used as the radius to make a circle to form a circle C. The distance of NX is less than the horizontal distance from point X to the front panel of 4. Here, ensure that the circle C, that is, point N, will not contact the front panel of 4. ;

When the door 2 is opened and closed to the maximum angle, the guide shaft 11 of the chute slides through the end of the retracting groove 211 of the refrigerator main body. The horizontal section of 2 and the front and rear ends of the adjacent sides of the cabinet 3 are set as M and N, and the line segment MY is used as the radius to make a circle to form a circle E. The length of the line segment MY is less than the level between the Y point and the front panel of the refrigerator storage cavity 4. The distance, the line segment NY is used as the radius to make a circle to form a circle F. The length of the line segment NY is less than the horizontal distance between the Y point and the front panel of the refrigerator storage cavity 4. Here, when it is ensured that the guide shaft 11 of the chute slides into the retracting groove 211 of the refrigerator main body , the side walls of the end points on both sides M and N of the box door 2 will not touch the front panel of the storage cavity 4 of the refrigerator.

The mounting plate 1 is fixedly installed on the front panel of the storage cavity 4 of the refrigerator. The mounting plate 1 includes an extension plate 10 vertically fixed on the front panel of the mounting plate 1. The top edge and bottom edge of the box door 2 are respectively An extension plate 10 is combined with the horizontal cover. The cover joint of the box door 2 and the extension plate 10 is provided with an embedded groove 20 for embedding the two rotating shafts and the rotating plate 13 .

The embedded groove 20 is set on the box door 2, the guide chute 21 is set on the inner bottom surface of the embedded groove 20, the guide shaft 11 of the chute is rotatably fixed on the mounting plate 1, and the two rotating shafts include: The fixed shaft 12 and the connecting shaft 14 are provided with a connecting shaft hole 22 in the embedded groove 20, one end of the connecting shaft 14 is rotated and penetrated in the connecting shaft hole 22, and the other end of the connecting shaft 14 is vertically fixed on the rotating plate On the outer end face of 13, the inner end of the rotating plate 13 is rotatably fixed on the extension plate 10 through the fixed shaft 12, and the connecting shaft 14 is arranged parallel to the guide shaft 11 of the chute.

The working principle of the present invention is: when the hinge body works, when the box door 2 is turned over, the connecting shaft 14, the rotating plate 13 and the fixed shaft 12 constitute a force transmission component structure, and the box door 2's turning track mainly relies on the guide chute. 21, the shape parameters of the guide chute 21 ensure that the side wall of the box door 2 will not be scratched with the cabinet body 3 and the panel of the refrigerator storage cavity 4. Here, the guide chute 21 is divided into two sections, mainly to ensure that the box door 2 Under the condition of the smallest gap between the cabinet 3 and the cabinet door 2 and the refrigerator storage cavity 4, the smooth opening of the cabinet door 2 can be achieved. Here, the two cross-section endpoints M and N adjacent to the cabinet door 2 and the cabinet 3 are used to analyze The overall motion trajectory of the box door 2;

When the box door 2 is closed, please refer to FIG. 7 , the guide shaft 11 of the chute is located at the end of the track retraction groove. At this time, when the box door 2 is flipped, the guide shaft 11 of the chute slides in the track retraction groove as a whole, and the entire box door 2 slides in the track retraction groove. Taking the arc sliding of the track retraction groove, the center of the circle corresponding to the track retraction groove is X. At this time, the running track of the chute guide shaft 11 is a segment of the circle A, the running track of the M point is a segment of the circle B, and the running track of the N point The running track is a section of the circle C. It is ensured that the adjacent side walls of the box door 2 and the cabinet 3 will not collide. Here, the distance of the line segment MX needs to be smaller than the horizontal distance between the X point and the end face of the cabinet body 3. At the same time, the line segment NX The distance cannot exceed the horizontal distance between the X point and the front face of the refrigerator storage cavity 4. Therefore, under the condition that the box door 2 and the cabinet body 3 and the box door 2 and the refrigerator storage cavity 4 will not collide, the box The gaps between the door 2 and the cabinet body 3, the box door 2 and the refrigerator storage cavity 4 are adjusted to the minimum through the opening guide chute 21 to ensure that the box door 2 and the cabinet body 3, and the box door 2 and the refrigerator storage cavity 4 fit better. There is no need to leave a large gap for the opening and closing of the box door 2;

When the door 2 is opened, please refer to FIG. 8 , when the guide shaft 11 of the chute slides into the retracting groove 211 of the refrigerator main body, the center of the circle corresponding to the retracting groove 211 of the refrigerator main body is Y, and at this time the guide shaft 11 of the chute runs The trajectory is circle D. Similarly, the running trajectory of point N becomes circle E, and the running trajectory of point M becomes circle F. Here, M and N move away from the side wall of cabinet 3. Here, it is necessary to ensure that box door 2 The side walls adjacent to the refrigerator storage cavity 4 will not collide, so the distance of the line segment MY should be less than the horizontal distance between the X point and the front face of the refrigerator storage cavity 4, and the distance of the line segment NY should not exceed the X point and the refrigerator storage cavity 4. The horizontal distance of the front face, therefore, under the condition that the box door 2 and the cabinet body 3 and the box door 2 and the refrigerator storage cavity 4 will not collide, the box door 2 and the cabinet body 3 and the box door 2 and the refrigerator can be connected. The gap of the storage cavity 4 is adjusted to the minimum through the opening guide chute 21 to ensure that the box door 2 and the cabinet body 3, the box door 2 and the refrigerator storage cavity 4 are more closely fitted, and there is no need to leave an excessive gap for the box door 2. Opening and closing;

To sum up, please refer to Figure 9, the actual motion trajectory of M is composed of circle B and circle E, and the actual motion trajectory of M is the arc segment GH (point G is the initial position of M, point H is the door 2 turning over The end position of M after opening), please refer to the extension plate 10 in the figure, the actual motion trajectory of N is composed of circle C and circle F, and the actual motion trajectory of N is arc segment KJ (K is the initial position of N, and point J is The end position of N after the box door 2 is opened), when the box door 2 is rotated as a whole, the side of the box door 2 close to the cabinet 3 is retracted to the left, and the side of the box door 2 close to the refrigerator storage cavity 4 is retracted downward. The box door 2 can realize the non-collision opening and closing process under a small gap distance, which ensures the fit between the box door 2 and the refrigerator storage cavity 4, the box door 2 and the cabinet body 3, and is more suitable for the refrigerator main body. inside cabinet 3.

Example 2

Please refer to FIG. 11 , the difference between this embodiment and Embodiment 1 is:

The embedded groove 20 is set on the box door 2 , the guide chute 21 is set on the extension plate 10 , the guide shaft 11 of the chute is rotatably fixed on the box door 2 , and the two rotating shafts include the fixed shaft 12 and the connecting shaft 14, a connecting shaft hole 22 is opened in the embedded groove 20, one end of the connecting shaft 14 is rotated through the connecting shaft hole 22, and the other end of the connecting shaft 14 is vertically fixed on the outer end surface of the rotating plate 13 Above, the inner end of the rotating plate 13 is rotatably fixed on the extension plate 10 through the fixing shaft 12 , and the connecting shaft 14 is arranged in parallel with the guide shaft 11 of the chute.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. A single-rail embedded hinge of a refrigerator comprises a mounting plate (1), an extension plate (10), a refrigerator door (2), refrigerator bodies (3) and a refrigerator storage cavity (4), wherein a refrigerator main body formed by the refrigerator door (2) and the refrigerator storage cavity (4) is integrally embedded between the refrigerator bodies (3), and the top edge and the bottom edge of one side of the refrigerator door (2) are hinged to upper and lower side panels of an opening of the refrigerator storage cavity (4) through the mounting plate (1);

its characterized in that, mounting panel (1) with it is fixed with a pivot to rotate respectively on chamber door (2) the opposite face, links to each other through rotor plate (13) that the level set up between two pivots, and the both ends of rotor plate (13) rotate with two pivots respectively and cup joint, link to each other with spout guiding axle (11) are spacing through direction spout (21) and the spout guiding axle (11) that are used for guiding chamber door (2) motion between chamber door (2) and mounting panel (1), and spout guiding axle (11) slide and wear to establish in direction spout (21).

2. The single-rail embedded hinge of the refrigerator as claimed in claim 1, wherein the guide sliding groove (21) comprises a rail wall retracting groove (210) for guiding the door (2) to retract towards the direction away from the cabinet body (3) and a refrigerator main body retracting groove (211) for guiding the door (2) to retract towards the direction away from the refrigerator storage chamber (4), and the rail wall retracting groove (210) and the refrigerator main body retracting groove (211) are two arc grooves with different bending degrees and are continuously communicated.

3. The single-rail embedded hinge of the refrigerator as claimed in claim 2, wherein when the door (2) is closed, the sliding groove guide shaft (11) is slidably disposed through the end of the rail wall retracting groove (210), the circle center corresponding to the maximum arc-shaped section of the rail wall retracting groove (210) is X, the front and rear end points of the horizontal cross section of the door (2) and the adjacent side of the cabinet (3) are set to be M and N, the length of the line segment MX is smaller than the minimum horizontal distance between the X point and the cabinet (3) and the length of the line segment MX is smaller than the horizontal distance between the X point and the front panel of the storage cavity (4) of the refrigerator;

when the refrigerator door (2) is opened and closed to a maximum angle, the sliding groove guide shaft (11) penetrates through the tail end of the refrigerator main body retraction groove (211) in a sliding mode, the circle center corresponding to the maximum arc section of the refrigerator main body retraction groove (211) is Y, the front end point and the rear end point of the horizontal cross section of the refrigerator door (2) and the adjacent side of the cabinet body (3) are set to be M and N, the length of the line segment MY is smaller than the horizontal distance between the Y point and the front panel of the refrigerator storage cavity (4), and the length of the line segment NY is smaller than the horizontal distance between the Y point and the front panel of the refrigerator storage cavity (.

4. The embedded hinge of refrigerator monorail of claim 1, characterized in that, the mounting panel (1) is attached to the front panel of the refrigerator storage chamber (4) and fixedly installed, the mounting panel (1) comprises an extension plate (10) vertically fixed on the front panel of the mounting panel (1), the top edge and the bottom edge of one side of the refrigerator door (2) are respectively and horizontally covered with an extension plate (10), and the covered part of the refrigerator door (2) and the extension plate (10) is provided with an inner embedded groove (20) for embedding two rotating shafts and a rotating plate (13).

5. The embedded hinge of single track of refrigerator of claim 4, characterized in that the inner embedded groove (20) is opened on the door (2), the guiding sliding groove (21) is opened on the inner bottom surface of the inner embedded groove (20), the sliding groove guiding shaft (11) is rotationally fixed on the mounting plate (1), two rotating shafts comprise a fixed shaft (12) and a connecting rotating shaft (14), a connecting shaft hole (22) is opened in the inner embedded groove (20), one end of the connecting rotating shaft (14) is rotationally arranged in the connecting shaft hole (22), the other end of the connecting rotating shaft (14) is vertically fixed on the outer end surface of the rotating plate (13), the inner end of the rotating plate (13) is rotationally fixed on the extending plate (10) through the fixed shaft (12), and the connecting rotating shaft (14) is parallel to the sliding groove guiding shaft (11).

6. The embedded hinge of single track of refrigerator as claimed in claim 4, wherein the inner embedded groove (20) is opened on the door (2), the guiding sliding groove (21) is opened on the extending plate (10), the guiding shaft (11) is fixed on the door (2) in rotation, two of the rotating shafts comprise a fixed shaft (12) and a connecting rotating shaft (14), the inner embedded groove (20) is opened with a connecting shaft hole (22), one end of the connecting rotating shaft (14) is rotated and penetrated in the connecting shaft hole (22), the other end of the connecting rotating shaft (14) is fixed on the outer end face of the rotating plate (13) in vertical direction, the inner end of the rotating plate (13) is fixed on the extending plate (10) in rotation through the fixed shaft (12), and the connecting rotating shaft (14) is parallel to the guiding shaft (11).

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