CN116411756A

CN116411756A - Hinge and refrigerating device with same

Info

Publication number: CN116411756A
Application number: CN202210006842.2A
Authority: CN
Inventors: 李康; 夏恩品; 王常志; 董雨峰
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2023-07-11

Abstract

The invention discloses a hinge and a refrigerating device, which are used for connecting a door body to a box body; the hinge includes: the fixed seat is fixed on the box body and is provided with a first chute and a sliding block which is in sliding connection with the first chute; the movable seat is fixed on the door body, and one end of the movable seat is connected with a hinge shaft; the linkage assembly is arranged between the sliding block and the movable seat; the movable seat is provided with a linkage state in linkage with the linkage assembly and a separation state separated from the linkage assembly, when the movable seat is in the linkage state, the linkage assembly drives the movable seat to synchronously move along with the sliding block in the process of rotating the movable seat around the hinge shaft, and when the movable seat is in the separation state, the movable seat can rotate around the hinge shaft in situ; the door body can freely rotate around the hinge shaft in situ and is not limited by the linkage assembly, so that the door body is convenient for a user to use.

Description

Hinge and refrigerating device with same

Technical Field

The invention relates to the technical field of household appliances, in particular to a hinge and a refrigerating device with the hinge.

Background

With the development of society, people have increasingly improved quality of life, and there has been an increasing demand for embedded refrigerators that can be placed in a deep and narrow space (e.g., a cabinet, etc.). However, in the practical use process, due to the influence of the hinge structure of the refrigerator door body and the refrigerator body in the traditional refrigerator, when the refrigerator door body is opened, the side of the refrigerator door body, which is hinged with the refrigerator body, often protrudes out of the side wall of the refrigerator body, when the refrigerator is placed in a deep and narrow space, the refrigerator door body can interfere with the deep and narrow space or other objects placed in the deep and narrow space, so that the opening amplitude of the refrigerator door body is influenced, the surface of the refrigerator door body is damaged, and the attractiveness of the refrigerator door body is influenced.

In order to avoid interference when the door body is opened, the structure of the hinge part connecting the box body and the door body is improved, so that the door body can rotate and generate certain displacement along the preset direction, but the structure of the existing hinge part is very complex, and meanwhile, the door opening angle is limited by the hinge part, so that the opening degree is smaller, and the door is inconvenient for users to use.

In view of the foregoing, there is a need for improvements in existing hinges and refrigeration devices having such hinges to address the above-described problems.

Disclosure of Invention

The invention aims to provide a hinge and a refrigeration device with the hinge.

In order to achieve one of the above objects, the present invention provides a hinge for connecting a door to a case; the hinge includes:

the fixed seat is fixed on the box body and is provided with a first chute and a sliding block which is in sliding connection with the first chute;

the movable seat is fixed on the door body, and one end of the movable seat is connected with a hinge shaft;

the linkage assembly is arranged between the sliding block and the movable seat;

the movable seat is provided with a linkage state in linkage with the linkage assembly and a separation state separated from the linkage assembly, when the movable seat is in the linkage state, the linkage assembly drives the movable seat to synchronously move along with the sliding block in the process of rotating the movable seat around the hinge shaft, and when the movable seat is in the separation state, the movable seat can rotate around the hinge shaft in situ.

As a further improvement of an embodiment of the present invention, the linkage assembly includes a linkage rod rotatably connected to the hinge shaft, and a transmission structure for transmitting the linkage rod and the slider, and when the linkage rod rotates around the hinge shaft, the transmission structure drives the linkage rod to move synchronously with the slider; when the movable seat is in a linkage state, the movable seat and the linkage rod are relatively fixed, and when the movable seat is in a separation state, the movable seat can be separated from the linkage rod.

As a further improvement of an embodiment of the present invention, the linkage rod is provided with a second chute extending along a length direction thereof, the movable seat is provided with a third chute extending along a length direction thereof, the transmission structure includes a first rotating shaft matched with the second chute, when the movable seat is in a linkage state, the second chute is aligned with the third chute, and the first rotating shaft is positioned in the second chute and the third chute; when the movable seat is in a disengaging state, the first rotating shaft is disengaged from the third sliding groove.

As a further improvement of an embodiment of the present invention, when the linkage rod rotates around the hinge axis in a direction away from the fixed seat, the first axis of rotation moves toward one end of the second chute and the third chute, which are close to the hinge axis, and a gap communicated with the third chute is provided on one side of the movable seat, which faces the linkage rod, and the gap is used for the first axis of rotation to separate from or enter the third chute.

As a further improvement of one embodiment of the present invention, when the driving structure drives the slider to move to one end of the first chute along a preset direction, the first rotating shaft is located at the notch.

As a further improvement of an embodiment of the present invention, an alignment structure is disposed between the linkage rod and the movable seat, and the alignment structure is used for aligning the relative position between the linkage rod and the movable seat when the movable seat rotates around the hinge axis in situ towards the fixed seat.

As a further improvement of an embodiment of the present invention, the alignment structure includes an alignment post disposed on one of the movable seat and the linkage rod, and an alignment slot disposed on the other, where the alignment slot has an inlet and an outlet for the alignment post to enter and exit.

As a further improvement of an embodiment of the present invention, the transmission structure includes:

one end of the first connecting rod is rotationally connected with the hinge shaft, and the other end of the first connecting rod is rotationally connected with the sliding block;

one end of the second connecting rod is rotatably connected to the fixed seat, and the other end of the second connecting rod is movably connected with the linkage rod;

and one end of the third connecting rod is rotationally connected with the sliding block, and the other end of the third connecting rod is rotationally connected with the second connecting rod.

As a further improvement of one embodiment of the invention, one of the third connecting rod and the second connecting rod is provided with a limiting groove, and the other one is provided with a limiting column matched with the limiting groove, and the limiting column is always matched in the limiting groove.

As a further improvement of an embodiment of the invention, one of the movable seat and the linkage assembly is provided with a yielding groove, the other is provided with a convex shaft matched with the yielding groove, the yielding groove is an arc-shaped groove taking the hinge shaft as a circle center, and when the linkage assembly is in a folded state, the convex shaft is positioned in the yielding groove.

As a further improvement of an embodiment of the present invention, the first sliding groove extends along the length direction of the fixed seat, the first sliding groove has an inner end that is close to the outer end of the hinge shaft and far away from the hinge shaft, when the movable seat is in a linkage state, the linkage assembly drives the sliding block to move from the outer end to the inner end and drives the movable seat to move in the same direction during the rotation of the movable seat around the hinge shaft.

In order to achieve the aim of the invention, the invention also provides a refrigerating device which comprises a box body, a door body and the hinge.

Compared with the prior art, the invention has the beneficial effects that: the movable seat in the hinge is provided with a linkage state which is linked with the linkage assembly and a separation state which is separated from the linkage assembly, and when the movable seat is in the separation state, the movable seat can rotate around the hinge shaft in situ, namely, the door body can freely rotate around the hinge shaft in situ, is not limited by the linkage assembly and is convenient for a user to use.

Drawings

Fig. 1 is a schematic structural view of a hinge in a first embodiment of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 1;

FIG. 4 is a schematic view of the linkage assembly of FIG. 1 in a collapsed state;

FIG. 5 is a schematic view of the movable seat of FIG. 1 after being opened (the movable seat and the linkage assembly are in a linkage state);

FIG. 6 is a schematic view of the movable seat of FIG. 1 after being opened (the movable seat and the linkage assembly are in a disengaged state);

FIG. 7 is a schematic view of a hinge according to a second embodiment of the present invention (the linkage assembly is in a folded state);

FIG. 8 is a schematic view of the hinge of FIG. 7 after the movable seat is pivoted about the hinge axis to a predetermined angle;

FIG. 9 is a schematic view of the movable seat of FIG. 7 after being opened (the movable seat and the linkage assembly are in a linkage state);

FIG. 10 is a schematic view of the movable seat of FIG. 7 after being opened (the movable seat and the linkage assembly are in a disengaged state);

fig. 11 is a schematic structural view of a refrigerating apparatus according to the present invention.

Detailed Description

The present invention will be described in detail with reference to the specific embodiments shown in fig. 1 to 11. These embodiments are not intended to limit the invention and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the invention.

The terminology used herein to represent spatially relative positions is for convenience in description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1 to 6, a hinge 10 according to a first embodiment of the present invention is shown, the hinge 10 is used to connect a door body to a box body, in this embodiment, the hinge 10 is used in a vertical refrigerator, and a door body of the refrigerator is specifically described by taking a left-right door opening as an example.

It should be emphasized that the hinge 10 of the present embodiment is applicable not only to refrigerators, but also to other scenes, such as cabinets, sideboards, and wardrobes, and the present invention is described by way of example only, but not limitation, in which the hinge 10 is applied to refrigerators.

The hinge 10 comprises a fixed seat 1 fixed on the box body, a movable seat 2 fixed on the door body and a linkage assembly 3. The fixed seat 1 is provided with a first chute 11 and a sliding block 12 which is in sliding connection with the first chute 11. The movable seat 2 has a hinge shaft 21 thereon, and the movable seat 2 is rotatable about the hinge shaft 21, so that a door body fixed to the movable seat 2 is rotatable about the hinge shaft 21 to open or close the case. The linkage assembly 3 is arranged between the sliding block 12 and the movable seat 2 to link the movable seat 2 and the sliding block 12.

Specifically, the movable seat 2 has a linkage state of being linked with the linkage assembly 3 and a separation state of being separated from the linkage assembly 3, when the movable seat 2 is in the linkage state, in the process that the movable seat 2 rotates around the hinge shaft 21, the linkage assembly 3 drives the movable seat 2 to synchronously move along with the sliding block 12 by a preset distance, and when the movable seat 2 is in the separation state, the movable seat 2 is not limited by the linkage assembly 3, namely, the movable seat 2 can freely rotate around the hinge shaft 21 in situ, and the movement track of the door body can be controlled.

It will be appreciated that the direction and the preset distance in which the linkage assembly 3 drives the movable base 2 to move are related to the moving direction and the moving distance of the slider 12. The extending direction of the first sliding groove 11, the moving direction of the sliding block 12, and the length of the first sliding groove 11 can be designed according to specific requirements. For example, when the door body is to be moved inward toward the inner side away from the opening side to prevent the door body from colliding with the wall/cabinet on the opening side when the door body is opened, the first slide groove 11 may be designed to extend in a direction perpendicular to the wall/cabinet on the opening side (the longitudinal direction of the fixing base 1 is extended), and the slide block 12 may be designed to move in a direction away from the wall/cabinet on the opening side along the first slide groove 11 when the door is opened. To increase the opening of the door by moving the door outward away from the opening side when the door is opened, the first sliding chute 11 may be designed to extend in a direction perpendicular to the opening side wall/cabinet (the longitudinal direction of the fixing base 1), and the sliding block 12 may be designed to move in a direction along the opening side wall/cabinet along the first sliding chute 11 when the door is opened.

In this embodiment, the first sliding groove 11 extends along the length direction of the fixed seat 1, and defines that one end of the first sliding groove 11, which is close to the hinge shaft 21, is an outer end, and one end, which is far away from the hinge shaft 21, is an inner end, and the movable seat 2 and the linkage assembly 3 are in a linkage state, and when the movable seat 2 rotates around the hinge shaft 21 to rotate and open in a direction far away from the fixed seat 1, the sliding block 12 moves from the outer end to the inner end along the first sliding groove 11, so as to drive the door body to move inwards, that is, the door body rotates and opens while moving for a preset distance, so that collision between the door body and a wall body or a cabinet body on the opening side can be prevented. Of course, the present invention is not limited to this, and in other embodiments, the movable seat 2 and the linkage assembly 3 may be set in a linkage state, and when the movable seat 2 rotates about the hinge shaft 21 to open in a direction away from the fixed seat 1, the slider 12 moves from the inner end to the outer end along the first chute 11, so as to drive the door body to move outwards, that is, the door body rotates to open and moves outwards by a preset distance, so that an opening angle of the door body can be enlarged, and a user is more facilitated to view articles in the refrigerator.

Specifically, the preset distance that the linkage assembly 3 drives the movable seat 2 to move may be adjusted by adjusting the length of the first chute 11.

The term "outside" refers to the outside of the refrigerator, and the term "inside" refers to the orientation defined with respect to the outside.

It can be understood that, when the hinge 10 is applied to a refrigerator with a left or right door, the length direction of the fixing base 1 is the left or right direction, and the outer end is the end of the first chute 11 corresponding to the opening side of the door body. When the hinge 10 is applied to a refrigerator with a vertically opened door, the length direction of the fixing base 1 is the vertical direction, and the outer end is the end of the first chute 11 corresponding to the opening side of the door body.

Specifically, the fixing base 1 includes a first plate 13 for fixing to a box body, and a connecting plate 14 vertically disposed on the first plate 13, and the first chute 11 is disposed on the connecting plate 14.

The first plate 13 is fixed to a side of the case facing the door so that the connection plate 14 protrudes toward the door.

It will be appreciated that the position of the first chute 11 is set according to the positional relationship between the connection plate 14 and the door body, that is, the first chute 11 is disposed at the side of the first plate 13 corresponding to the door body. For example, when the hinge 10 is mounted at the bottom of the vertical refrigerator and the door body is opened in the left-right direction, the door body is positioned at the upper side of the hinge 10, and thus the first chute 11 is provided on the upper surface of the connection plate 14.

Further, the linkage assembly 3 has a folded state and an open state, when the movable seat 2 and the linkage assembly 3 are in the linkage state, the movable seat 2 is rotated about the hinge shaft 21 in a direction away from the fixed seat 1 to be opened, the linkage assembly 3 is switched from the folded state to the open state, so as to drive the sliding block 12 to move along the sliding groove, and meanwhile, the movable seat 2 is driven to move along with the sliding block 12.

In this embodiment, when the linkage assembly 3 is in the folded state, the door body is in the closed state, at this time, the movable seat 2 and the linkage assembly 3 are in the linkage state, when the door body is opened, the movable seat 2 rotates around the hinge shaft 21 in a direction away from the fixed seat 1, and simultaneously, the linkage assembly 3 is driven by the movable seat 2 to switch from the folded state to the open state, that is, when the door body is opened, the door body rotates around the hinge shaft 21 and moves synchronously with the sliding block 12, so as to prevent the door body from collision with the wall/cabinet body on the opening side in the opening process.

In a specific embodiment, the linkage assembly 3 includes a linkage rod 34 rotatably connected to the hinge shaft 21, and a transmission structure for driving the linkage rod 34 to connect with the slider 12, where when the linkage rod 34 rotates around the hinge shaft 21, the transmission structure can drive the slider 12 to move along the first chute 11, and drive the linkage rod 34 to move along with the hinge shaft 21 in the same direction in the rotating process, and the movable seat 2 in a linkage state with the linkage rod 34 moves synchronously with the linkage rod 34.

When the movable seat 2 is in a linkage state, the movable seat 2 and the linkage rod 34 are relatively fixed, so that the movable seat 2 can synchronously move with the linkage rod 34. When the movable seat 2 is in the disengaged state, the movable seat 2 is disengaged from the link lever 34, so that the movable seat 2 can freely rotate about the hinge shaft 21 without being limited by the link assembly 3.

In one embodiment, the transmission structure includes a first link 31, a second link 32, and a third link 33, where the first link 31, the second link 32, the third link 33, and the linkage rod 34 form a four-link structure, so as to implement linkage between the slider 12 and the linkage rod 34. Of course, this is not a limitation.

Specifically, one end of the first link 31 is rotatably connected with the hinge shaft 21, the other end is rotatably connected with the slider 12, one end of the second link 32 is rotatably connected with one end of the fixing seat 1 corresponding to the inner end, the other end is movably connected with the link lever 34, one end of the third link 33 is rotatably connected with the slider 12, the other end is rotatably connected with the second link 32, and when the link assembly 3 is in a folded state, the first link 31, the second link 32, the third link 33 and the link lever 34 are laminated to reduce the distance between the door body and the box body, so that the door body is in a closed state.

In the door opening process, when the door body drives the movable seat 2 to rotate around the hinge shaft 21, the linkage assembly 3 drives the sliding block 12 to move towards the inner end and drives the movable seat 2 to move inwards, so that the door body moves inwards, and the door body is prevented from colliding with a wall or a cabinet body at the opening side when the door is opened.

In one embodiment, the first link 31 and the third link 33 are rotatably connected to the slider 12 through the same rotation shaft. Of course, this is not a limitation.

In an embodiment, the linkage rod 34 is provided with a second sliding groove 341 extending along a length direction thereof, the second connecting rod 32 is provided with a first rotating shaft 321 matched with the second sliding groove 341, and the second connecting rod 32 is movably connected to the linkage rod 34 through the matching between the first rotating shaft 321 and the second sliding groove 341. In the process that the linkage rod 34 rotates and opens around the hinge shaft 21 in a direction away from the fixed seat 1, the sliding block 12 is driven to move towards the inner end, and the first rotating shaft 321 moves towards one end of the second sliding groove 341, which is close to the hinge shaft 21, along the second sliding groove 341, so that the rotation angle of the door body in the process that the sliding block 12 drives the door body to move inwards can be reduced, and the stability of the door body moving is enhanced. Of course, the first shaft 321 may be, but not limited to, only rotatably connected to the linkage rod 34 in other embodiments.

Further, the movable seat 2 is provided with a third sliding groove 22 extending along a length direction thereof, when the movable seat 2 and the linkage rod 34 are in a linkage state, the third sliding groove 22 is aligned with the second sliding groove 341, the first rotating shaft 321 is simultaneously matched with the second sliding groove 341 and the third sliding groove 22, and when the first rotating shaft 321 is separated from the third sliding groove 22, the movable seat 2 and the linkage rod 34 are in a separation state.

Namely, the movable seat 2 and the linkage rod 34 are switched between the linkage state and the disengagement state by the cooperation between the first rotating shaft 321 and the third sliding groove 22, so that the structure is simple, the arrangement is convenient, and the cost is low.

It can be appreciated that, during the door opening process, when the movable seat 2 and the linkage rod 34 are in the linkage state, the movable seat 2 continues to rotate around the hinge shaft 21 to further open the door body 30, and the linkage assembly 3 drives the slider 12 to move toward the inner end, while the first rotating shaft 321 moves toward one end of the second sliding groove 341 and the third sliding groove 22, which is close to the hinge shaft 21, along the second sliding groove 341 and the third sliding groove 22.

Further, a notch 23 is formed on a side of the movable seat 2 facing the linkage rod 34 and is communicated with the third chute 22, the notch 23 is used for the first rotating shaft 321 to separate from or enter the third chute 22, when the first rotating shaft 321 moves along the third chute 22 to separate from the third chute 22 through the notch 23, the movable seat 2 and the linkage rod 34 are in a separated state, and the movable seat 2 can rotate around the hinge shaft 21 in situ, that is, the door body 30 can rotate around the hinge shaft 21 in situ freely, so as to increase the opening degree of the door body.

Specifically, when the linkage assembly 3 drives the slider 12 to move to one end of the first chute 11 along the preset direction, the first rotating shaft 321 is located at the notch 23, that is, in this embodiment, when the linkage assembly 3 drives the slider 12 to move to the inner end along the first chute 11, the first rotating shaft 321 is located at the notch 23, that is, after the door body 30 completes the inward movement in the door opening process, the first rotating shaft 321 is located at the notch 23, and at this time, the door is continuously opened, the first rotating shaft 321 is separated from the third chute 22 from the notch 23, so that the movable seat 2 is switched to a separated state, and therefore, the door body 30 can enter a state of in-situ free rotation around the hinge shaft 21, so that a user can take a product conveniently.

Further, a side of the movable seat 2 facing the linkage rod 34 has an inclined surface 24 extending from an end of the third sliding groove 22 away from the hinge shaft 21 toward the hinge shaft 21 and inclined in a direction away from the linkage plate rod 34, and the inclined surface 24 extends to a position where the notch 23 is located, so that the first rotating shaft 321 can conveniently enter and exit the third sliding groove 22 through the notch 23.

Further, an alignment structure 4 is disposed between the movable seat 2 and the linkage rod 34, and when the movable seat 2 rotates around the hinge shaft 21 toward the fixed seat 1 in situ, the alignment structure 4 is used for aligning the relative position between the linkage rod 34 and the movable seat 2, so as to enhance the running stability of the hinge 10.

In one embodiment, the alignment structure 4 includes an alignment post 41 disposed on one of the movable seat 2 and the linkage rod 34, and an alignment slot 42 disposed on the other, where the alignment slot 42 has an inlet and an outlet for the alignment post 41 to enter and exit. In this embodiment, after the movable seat 2 rotates around the hinge shaft 21 toward the fixed seat 1 in situ until the alignment post 41 abuts against the slot wall of the alignment slot 42, the second sliding slot 341 is aligned with the third sliding slot 22.

Further, one of the third link 33 and the second link 32 is provided with a limit groove 321, and the other one is provided with a limit block 331 matching with the limit groove 321, when the linkage assembly 2 is switched between the open state and the folded state, the limit block 331 is always matched in the limit groove 321, so that the stability of the relative movement between the first rotating shaft 321 and the second sliding groove 341 can be enhanced, and the stability of the hinge 10 is enhanced.

Specifically, the limiting groove 321 is an arc-shaped groove with a center of rotation between the third link 33 and the second link 32 as a center of circle, and the limiting block 331 and the limiting groove 321 move relatively when the linkage assembly 3 is switched from the folded state to the open state.

Further, the fixing base 1 is further provided with a protruding block 15, the protruding block 15 and the first sliding groove 11 are disposed on the same side of the connecting plate 14, and after the linkage assembly 3 drives the sliding block 12 to move to the inner end, the first connecting rod 31 abuts against the protruding block 15 to limit the rotation of the first connecting rod 31, so that the stability of the in-situ free rotation of the door body 30 around the hinge shaft 21 can be enhanced.

Further, the hinge 10 further includes a docking post 5 disposed on the movable seat 2 for fixing the movable seat 2 and the door body relatively, so as to achieve docking of corresponding structures on the door body, and fix the movable seat 2 on the door body.

Further, referring to fig. 11, the present invention further provides a refrigeration device 100, where the refrigeration device 100 includes a case 20, a door 30 for opening and closing the case 20, and a hinge 10, and the hinge 10 is used for connecting the case 20 and the door 30.

The hinge 10 is the hinge 10 described above, and will not be described herein.

In the present embodiment, the refrigerating apparatus 100 is a vertical refrigerator having a left-right door. Of course, it should be emphasized that the refrigerating apparatus 100 may be a vertical refrigerator or a horizontal refrigerator with a vertically opened door.

Next, a door opening and closing process of the refrigerating apparatus 100 having the hinge 10 will be described:

in the first stage of opening the door 30 in the closed state, the door 30 rotates around the hinge shaft 21 in a direction away from the box 20 and moves with the slide block 12 for a preset distance under the action of the linkage assembly 3;

after the door body 30 is moved inwards, the movable seat 2 is in a disengaged state, and the door body 30 can freely rotate around the hinge shaft 21 in situ;

when the door body 30 in the opened state is closed, the door body 30 firstly rotates around the hinge shaft 21 in situ to the direction of the box body 20 until the movable seat 2 is in a linkage state;

after the door is closed until the movable seat 2 is in a linkage state, the door body 30 rotates around the hinge shaft 21 in a direction approaching the box body 20, and moves along with the sliding block 12 by a preset distance under the action of the linkage assembly 3, so that the door body 30 is in a closed state.

It can be understood that the preset distance of the inner movement and the preset distance of the outer movement of the door body 30 can be preset by adjusting the length of the first chute 11.

The above-mentioned door 30 is completely moved inwards, that is, the sliding block 12 is moved to the inner end, and at this time, the first rotating shaft 321 is located at the notch 23, so that the first rotating shaft 321 is separated from the third sliding groove 22 through the notch 23.

The above-mentioned closing of the door to the movable seat 2 is in a linkage state, that is, the closing of the door to the first rotating shaft 321 enters the third sliding groove 22 from the notch 23. It can be appreciated that, after the alignment post 41 abuts against the groove wall of the alignment groove 42, the third sliding groove 22 is aligned with the second sliding groove 341, so that the first rotating shaft 321 enters the third sliding groove 22.

Referring to fig. 7 to 10, a hinge 10a according to a second embodiment of the present invention is shown, for convenience of description, the same or similar structures as those of the first embodiment are denoted by the same or similar numerals, and the same structures as those of the second embodiment are not described herein.

The hinge 10a in the second embodiment of the present invention is different from the hinge 10 in the first embodiment in that: the movable seat 2a and one of the linkage rods 34 are provided with a yielding groove 25, the other is provided with a convex shaft matched with the yielding groove 25, the yielding groove 5 is an arc-shaped groove taking the hinge shaft 21 as a circle center, and the convex shaft is matched with the yielding groove 25, so that the movable seat 2 can independently rotate around the hinge shaft 21 in situ relative to the linkage rod 34.

In one embodiment, the protruding shaft is matched with the yielding groove 25 when the door 30 is in the closed state. That is, when the movable seat 2a rotates around the hinge shaft 21 in a direction away from the fixed seat 1, the movable seat 2a rotates around the hinge shaft 21 at a predetermined angle in place under the cooperation of the protruding shaft and the yielding groove 25, and then the movable seat 2a enters a linkage state in which it is linked with the linkage lever 34. Therefore, when the door is opened, the door body 30 may be first rotated in place about the hinge axis 21 by a predetermined angle in a direction away from the case 20, and in a final stage of closing the door, the door body 30 may be rotated in place about the hinge axis 21 by a predetermined angle in a direction close to the case 20, so that the door is suitable for the door body 30 having a turnover beam, and the door body 30 may be opened and closed more conveniently.

It will be appreciated that the predetermined angle is determined by the length of the relief groove 25.

In one embodiment, the yielding groove 25 is disposed on the movable seat 2a, and the protruding shaft is a first rotating shaft 321, so as to simplify the structure of the hinge 10 a.

In the embodiment in which the relief groove 25 is disposed on the movable seat 2a and the third sliding groove 22 is disposed on the movable seat 2a, the relief groove 25 is disposed at an end of the third sliding groove 22 away from the hinge shaft 21, and the relief groove 25 is communicated with the third sliding groove 22.

It can be understood that in the present embodiment, the alignment structure 4 is configured to achieve the alignment between the movable seat 2a and the linkage rod 34 after the movable seat 2a rotates around the hinge shaft 21 in a direction approaching to the fixed seat 1 until the first rotating shaft 321 enters the yielding slot 25 from the third sliding slot 22.

The hinge 10a in the second embodiment of the present invention is identical to the hinge 10 in the first embodiment except for the differences described above, and will not be described again.

Further, referring to fig. 11, the present invention further provides a refrigeration device 100, where the refrigeration device 100 includes a case 20, a door 30 for opening and closing the case 20, and a hinge 10a, and the hinge 10a is used for connecting the case 20 and the door 30.

The hinge 10a is the hinge 10a in the second embodiment of the present invention, and will not be described herein.

Next, a door opening and closing process of the refrigerating apparatus 100 having the hinge 10a will be described:

when the door body 30 in the closed state is opened, the door body 30 firstly rotates around the hinge shaft 21 in situ by a preset angle until the movable seat 2a is in a linkage state;

after the movable seat 2a is in a linkage state, the door body 30 continues to rotate around the hinge shaft 21 in a direction away from the box body 20 and moves along with the sliding block 12 for a preset distance under the action of the linkage assembly 3;

after the door body 30 is moved inwards, the movable seat 2a is in a detachable state, and the door body 30 can freely rotate around the hinge shaft 21 in situ;

when the door body 30 in the opened state is closed, the door body 30 rotates around the hinge shaft 21 in situ to the direction of the box body 20 until the movable seat 2a and the linkage rod 34 are in a linkage state;

after the door is closed until the movable seat 2a and the linkage rod 34 are in a linkage state, the door body 30 rotates around the hinge shaft 21 in a direction approaching to the box body 20 and moves along with the sliding block 12 by a preset distance under the action of the linkage assembly 3 until the movable seat 2a and the linkage rod 34 are in a non-linkage state;

after the movable seat 2a and the linkage rod 34 are in the non-linkage state, the door 30 is in the closed state after the door 30 is pivoted in place by a preset angle around the hinge shaft 21 toward the direction of the case 20.

It can be appreciated that, during the door opening process, the door body 30 is first rotated around the hinge shaft 21 in situ by a predetermined angle until the movable seat 2a and the link lever 34 are in a linked state, that is, the door body 30 is rotated around the hinge shaft 21 in situ until the first rotating shaft 321 enters the third sliding groove 22 from the yielding groove 25, and at this time, the third sliding groove 22 is aligned with the second sliding groove 341.

The preset distance of the inner movement and the preset distance of the outer movement of the door body 30 can be preset by adjusting the length of the first chute 11.

The above-mentioned inward movement of the door 30 is completed, that is, the slider 12 is moved to the inner end, and the first rotating shaft 321 is located at the notch 23.

The above-mentioned closing of the door to the movable seat 2a and the linkage rod 34 are in a linkage state, that is, the closing of the door to the first rotating shaft 321 enters the third sliding groove 22 from the notch 23, and at this time, the third sliding groove 22 is aligned with the second sliding groove 341.

The movable seat 2a and the linkage rod 34 are in a non-linkage state, that is, the first rotating shaft 321 enters the yielding groove 25 from the third sliding groove 22 during the closing process.

In summary, in the hinge 10 of the present invention, by setting the movable seat 2 to a disengaged state in which the movable seat 2 is disengaged from the linkage assembly 2, the movable seat 2 can pivot around the hinge shaft 21 in situ after the movable seat 2 is in the disengaged state; the restriction on the opening of the door body 30 is reduced, and the use is convenient for the user.

The foregoing embodiments are only for illustrating the technical solution of the present invention, but not for limiting the same, although the present invention has been described in detail with reference to the preferred embodiments, for example, if the techniques in different embodiments can be overlapped to achieve the corresponding effects at the same time, the solution is also within the protection scope of the present invention. It will be understood by those skilled in the art that various modifications and equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A hinge connecting a door to a case; characterized in that the hinge comprises:

2. The hinge according to claim 1, wherein the linkage assembly includes a linkage rod rotatably connected to the hinge shaft, a transmission structure drivingly connecting the linkage rod and the slider, the transmission structure driving the linkage rod to move synchronously with the slider when the linkage rod rotates about the hinge shaft; when the movable seat is in a linkage state, the movable seat and the linkage rod are relatively fixed, and when the movable seat is in a separation state, the movable seat can be separated from the linkage rod.

3. The hinge according to claim 2, wherein the linkage rod is provided with a second sliding groove extending along the length direction of the linkage rod, the movable seat is provided with a third sliding groove extending along the length direction of the linkage rod, the transmission structure comprises a first rotating shaft matched with the second sliding groove, when the movable seat is in a linkage state, the second sliding groove is aligned with the third sliding groove, and the first rotating shaft is positioned in the second sliding groove and the third sliding groove; when the movable seat is in a disengaging state, the first rotating shaft is disengaged from the third sliding groove.

4. A hinge according to claim 3, wherein when the link lever rotates around the hinge shaft in a direction away from the fixed seat, the first rotating shaft moves toward one end of the second sliding groove and one end of the third sliding groove, which are close to the hinge shaft, and a notch communicated with the third sliding groove is formed in a side of the movable seat, which faces the link lever, and is used for the first rotating shaft to be separated from or enter the third sliding groove.

5. The hinge according to claim 4, wherein the first shaft is located at the notch when the driving structure drives the slider to move to one end of the first chute along a predetermined direction.

6. The hinge according to claim 4, wherein an alignment structure is provided between the link lever and the movable base, the alignment structure being configured to align a relative position between the link lever and the movable base when the movable base is rotated around the hinge axis toward the fixed base in situ.

7. The hinge according to claim 6, wherein the alignment structure comprises an alignment post provided on one of the movable seat and the link rod, and an alignment groove provided on the other, the alignment groove having an inlet and an outlet for the alignment post.

8. The hinge of claim 2, wherein the transmission structure comprises:

9. The hinge according to claim 8, wherein one of the third link and the second link has a limiting groove, and the other one has a limiting post that is matched with the limiting groove, and the limiting post is always matched in the limiting groove.

10. The hinge according to claim 1, wherein one of the movable seat and the linkage assembly is provided with a relief slot, the other one of the movable seat and the linkage assembly is provided with a protruding shaft matched with the relief slot, the relief slot is an arc-shaped slot taking the hinge shaft as a center of a circle, and the protruding shaft is positioned in the relief slot when the linkage assembly is in a folded state.

11. The hinge according to claim 1, wherein the first sliding groove extends along a length direction of the fixed seat, the first sliding groove has an outer end close to the hinge shaft and an inner end far away from the hinge shaft, and when the movable seat is in a linkage state, the linkage assembly drives the sliding block to move from the outer end to the inner end and drives the movable seat to move in the same direction during rotation of the movable seat around the hinge shaft.

12. A refrigeration device comprising a cabinet, a door, and a hinge according to any one of claims 1 to 11.