CN116411755A

CN116411755A - Hinge and refrigerating device with same

Info

Publication number: CN116411755A
Application number: CN202210006840.3A
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, wherein the hinge is 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, one end of the movable seat is connected with a hinge shaft, and the movable seat is in a linkage state of synchronously moving with the sliding block while rotating around the hinge shaft; a linkage assembly, the linkage assembly comprising: 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 to the movable seat; 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; the motion trail of the door body can be controlled.

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, refrigerators have entered into thousands of households. The refrigerator is larger in size, more in occupied space and increasingly prominent in the requirement of being capable of being placed in a deeper and narrower space (such as a cabinet and the like) under the condition that the area of the household is limited, particularly in a kitchen with a smaller area, the refrigerator needs to be skillfully placed so as to save more movable space.

In general, the relative motion between the box body and the door body is realized through a fixed hinge member, and the opening and closing degrees of freedom of the door body are greatly limited, namely, the motion track of the door body cannot be freely controlled. In the process of opening the door body, the door body rotates around the hinge shaft, the side, hinged to the refrigerator body, of the door body protrudes out of the side wall of the refrigerator body, the wall or the cabinet body at the opening side is easily touched, the opening amplitude of the refrigerator door body can be affected, the surface of the refrigerator door body can be damaged, and the attractiveness of the refrigerator door body is affected.

In order to solve the above problems, a relatively large gap is left between both sides of the embedded refrigerator and the deep narrow space or other objects placed in the deep narrow space in the prior art to prevent interference. The gap is not only unfavorable for reasonable utilization of space, but also unfavorable for the aesthetic property of the refrigerator and the space fusion.

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, one end of the movable seat is connected with a hinge shaft, and the movable seat is in a linkage state of synchronously moving with the sliding block while rotating around the hinge shaft;

a linkage assembly, the linkage assembly comprising:

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 to the movable seat;

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 the present invention, the first sliding groove extends along the length direction of the fixing 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 the second connecting rod is connected to one end of the fixing seat corresponding to the inner end.

As a further improvement of the invention, the movable seat also has a non-linkage state which rotates only around the hinge shaft, the second connecting rod comprises a telescopic rod movably connected with the movable seat, the telescopic rod has a first non-telescopic state and a second telescopic state, and when the telescopic rod is in the second state, the movable seat is in the non-linkage state.

As a further improvement of the invention, one of the telescopic rod and the third connecting rod is provided with a limiting groove, the other one of the telescopic rod and the third connecting rod is provided with a limiting block matched with the limiting groove, when the limiting block is positioned in the limiting groove, the telescopic rod is in a first state, and after the limiting block is separated from the limiting groove, the telescopic rod is in a second state.

As a further improvement of the invention, the telescopic rod is firstly in a first state and then in a second state during the rotation of the movable seat around the hinge in the direction away from the fixed seat axially.

As a further improvement of the invention, the movable seat is also provided with a non-linkage state which only rotates around the hinge shaft, the movable seat is provided with a first abdication groove, the first abdication groove is an arc-shaped groove taking the hinge shaft as a circle center, and when the movable seat is in the non-linkage state, a first rotating shaft matched with the movable seat on the second connecting rod is movably connected in the first abdication groove.

As a further improvement of the invention, the movable seat is firstly in the non-linkage state and then in the linkage state in the process of rotating around the hinge in the direction away from the fixed seat axially.

As a further improvement of the invention, the movable seat is provided with a second chute extending along the length direction of the movable seat, and the second connecting rod is movably connected in the second chute.

As a further improvement of the invention, the movable seat comprises a fixed plate fixed on the door body and a linkage plate rotationally connected with the fixed plate through the hinge shaft, the second connecting rod is movably connected with the linkage plate, the fixed plate is in a linkage state relatively fixed with the linkage plate and can be separated from the linkage plate, when the fixed plate is in the linkage state, the linkage assembly can drive the fixed plate and the sliding block to synchronously move, and when the fixed plate is in the separation state, the fixed plate can rotate around the hinge shaft in situ.

As a further improvement of the invention, the movable seat is provided with a second chute extending along the length direction of the movable seat, the second chute is arranged on the fixed plate in a penetrating way, and the second connecting rod is provided with a first rotating shaft in sliding connection with the second chute; the fixed plate is provided with a third sliding groove extending along the length direction of the fixed plate, when the fixed plate 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 fixed plate is in a disengaging state, the first rotating shaft is disengaged from the third sliding groove.

As a further improvement of the invention, a notch communicated with the third chute is arranged on one side of the fixed plate facing the linkage plate, the notch is arranged in a penetrating manner along the width direction of the fixed plate, and when the linkage assembly drives the sliding block to move to one end of the first chute along a preset direction, the first rotating shaft is positioned at the notch.

As a further improvement of the present invention, a side of the fixing plate facing the link plate has an inclined surface extending obliquely from an end of the third sliding groove away from the hinge shaft toward the hinge shaft and in a direction away from the link plate, the inclined surface extending to a position where the notch is located.

As a further improvement of the invention, one of the fixed plate and the linkage plate is provided with a second abdicating groove, the other one is provided with a convex shaft matched with the second abdicating groove, and the second abdicating groove is an arc-shaped groove taking the hinge shaft as the center of a circle.

As a further improvement of the invention, an alignment structure is arranged between the fixed plate and the linkage plate, and the alignment structure is used for aligning the relative position between the linkage plate and the fixed plate when the fixed plate rotates around the hinge shaft in situ towards the fixed seat.

As a further improvement of the invention, the alignment structure comprises an alignment column arranged on one of the movable plate and the linkage plate and an alignment groove arranged on the other, wherein the alignment groove is provided with an inlet and an outlet for the alignment column to enter and exit.

As a further improvement of the invention, the fixing seat is also provided with a bump, and after the linkage assembly drives the sliding block to move to one end of the first chute along a preset direction, the first connecting rod is propped against the bump so as to limit the rotation of the first connecting rod.

As a further improvement of the invention, the hinge further comprises a butt post arranged on the movable seat for fixing the movable seat on the door body.

In order to achieve one of the above objects, the present invention further provides a refrigeration device, which includes a case, a door, and the hinge.

Compared with the prior art, the invention has the beneficial effects that: according to the hinge, the linkage assembly is used for linking the sliding block on the fixed seat and the movable seat, so that the movement track of the door body can be controlled, the universality of the door body is enhanced, and the door body can be suitable for various application scenes, such as the application scene of an embedded refrigerator.

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

FIG. 4 is a schematic view of the hinge of FIG. 1 after the movable seat is opened (the movable seat and the slider are in a non-linkage state);

fig. 5 is a schematic structural view of a hinge in a second embodiment of the present invention;

fig. 6 is a schematic structural view of a hinge in a third embodiment of the present invention;

fig. 7 is an enlarged view at B in fig. 6;

FIG. 8 is a schematic view of the linkage assembly of FIG. 6 in a collapsed condition;

Fig. 9 is a schematic structural view of the movable seat in fig. 6 after being opened (the fixed plate and the linkage plate in the movable seat are in linkage state);

FIG. 10 is a schematic view of the structure of the movable seat in FIG. 6 after being opened (the fixed plate and the linkage plate in the movable seat are in a separated state);

FIG. 11 is a schematic view of a hinge according to a fourth embodiment of the present invention (the linkage assembly is in a folded state);

FIG. 12 is a view of the hinge of FIG. 11 after the stationary plate has been pivoted about the hinge axis to a predetermined angle;

fig. 13 is a schematic structural view of the movable seat in fig. 11 after being opened (a linkage state between the fixed plate and the linkage plate in the movable seat);

fig. 14 is a schematic structural view of the movable seat in fig. 11 after being opened (a state of disengagement between the fixed plate and the linkage plate in the movable seat);

fig. 15 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 15. 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 4, 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 base 2 has a linked state in which it moves in synchronization with the slider 12 while rotating about the hinge shaft 21, and a non-linked state in which it rotates only about the hinge shaft 21. When the movable seat 2 and the sliding block 12 are in a linkage state, and the movable seat 2 rotates around the hinge shaft 21 to be opened, the linkage assembly 3 drives the movable seat 2 to move along with the sliding block 12 for a preset distance; when the movable seat 2 and the sliding block 12 are in a non-linkage state, 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, which 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, when the movable seat 2 and the sliding block 12 are in a linkage state, and when the movable seat 2 rotates around the hinge shaft 21 to be 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 moves a preset distance while rotating and opening, so that collision between the door body and a wall body or a cabinet body on the opening side can be prevented. Of course, it is not limited to this, and in other embodiments, the movable seat 2 and the sliding block 12 may be set in a linkage state, and when the movable seat 2 rotates around the hinge shaft 21 to open in a direction away from the fixed seat 1, the sliding block 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 door body 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 sliding block 12 are in the linkage state, the movable seat 2 rotates around the hinge shaft 21 in a direction away from the fixed seat 1 to be opened, and the linkage assembly 3 is switched from the folded state to the open state 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 slider 12 are in the linked state, and 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 meanwhile, the linkage assembly 3 is switched from the folded state to the opened state, that is, when the door body is opened, the door body rotates around the hinge shaft 21 and moves synchronously with the slider 12 while moving inwards, so as to prevent collision with the wall/cabinet body on the opening side during the opening process of the door body.

In one embodiment, the linkage assembly 3 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 movable seat 2 form a four-link structure, so as to implement linkage between the slider 12 and the movable seat 2.

Specifically, one end of the first link 31 is rotatably connected to the hinge shaft 21, the other end is rotatably connected to the slider 12, one end of the second link 32 is rotatably connected to one end of the fixed seat 1 corresponding to the inner end, the other end is movably connected to the movable seat 2, one end of the third link 33 is rotatably connected to the slider 12, the other end is rotatably connected to the second link 32, and when the linkage assembly 3 is in a folded state, the first link 31, the second link 32, the third link 33 and the movable seat 2 are in a stacked 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 movable seat 2 is provided with a second sliding groove 22 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 22, and the second connecting rod 32 is movably connected to the movable seat 2 through the matching between the first rotating shaft 321 and the second sliding groove 22. In the door opening process, when the movable seat 2 and the sliding block 12 are in a linkage state, the movable seat 2 continues to rotate around the hinge shaft 21 to further open the door body, the linkage assembly 3 drives the sliding block 12 to move towards the inner end, and the first rotating shaft 321 moves towards one end, close to the hinge shaft 21, of the second sliding groove 22 along the second sliding groove 22, so that the rotating angle of the door body in the process of driving the door body to move inwards by the sliding block 12 can be reduced, and the moving stability of the door body is enhanced. Of course, the first shaft 321 may be, but not limited to, only rotatably connected to the movable seat 2 in other embodiments.

Further, in the present embodiment, the second link 32 includes a link 322 rotatably connected to the fixing base 1, a telescopic link 323 slidably connected to the link 322 along a length direction of the link 322, and the third link 33 is rotatably connected to the link 322.

The telescopic rod 323 has a first non-telescopic state and a second telescopic state, and in the first telescopic rod 323, the movable seat 2 and the sliding block 12 can be in a linkage state; when the telescopic rod 323 is in the second state, the movable seat 2 and the sliding block 12 are in an unlink state, that is, the movable seat 2 can pivot around the hinge shaft 21 in situ.

Specifically, in this embodiment, after the door is opened until the slider 12 moves to the inner end of the first chute 11, the telescopic rod 323 is switched from the first state to the second state, that is, the second link 32 is in the first state and then in the second state during the rotation of the movable seat 2 about the hinge shaft 21 in the direction away from the fixed seat 1. After the door body moves inwards, the telescopic rod 323 is switched from the first state to the second state, and the movable seat 2 can freely rotate around the hinge shaft 21 in situ, that is, the door body can freely rotate around the hinge shaft 21 in situ, so that the door body can be further opened, and a user can conveniently take objects.

It can be appreciated that in the embodiment where the second link 32 includes the telescopic rod 323, the second chute 22 provided on the movable seat 2 can increase the opening of the door body, so as to facilitate the user to take out the object.

In one embodiment, one of the telescopic rod 323 and the third link 33 is provided with a limiting groove 3231, the other one is provided with a limiting block 331 matched with the limiting groove 3231, when the limiting block 331 is located in the limiting groove 3231, the telescopic rod 323 is in a first state, and after the limiting block 331 is separated from the limiting groove 3231, the telescopic rod 323 is in a second state.

Specifically, the limiting slot 3231 is an arc slot with a center of rotation between the third link 33 and the second link 32 as a center of circle, when the linkage assembly 3 is switched from the folded state to the open state, the limiting block 331 and the limiting slot 3231 move relatively, after the sliding block 12 moves to the inner end of the first sliding slot 11, the limiting block 331 is separated from the limiting slot 3231, so that the telescopic rod 323 is in the second state, and the movable seat 2 can freely rotate around the hinge shaft 21 in situ, that is, the door body 30 can freely rotate around the hinge shaft 21 in situ, so as to further open the door body 30, thereby facilitating the user to take objects.

It can be appreciated that, on the one hand, the cooperation between the limiting groove 3231 and the limiting block 331 can enable the telescopic rod 323 to be in the first state, so that the movable seat 2 and the sliding block 12 can be in a linkage state; on the other hand, the stability of the relative movement between the first rotation shaft 321 and the second chute 22 can be enhanced, and the stability of the hinge 10 can be enhanced.

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. 15, 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 in the first embodiment of the present invention, 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:

when the door body 30 in a closed state is opened, the door body 30 rotates around the hinge shaft 21 in a direction away from the box body 20 and moves 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 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 2 and the sliding block 12 are in a linkage state;

after the door is closed until the movable seat 2 and the sliding block 12 are in a linkage state, the door body 30 rotates around the hinge shaft 21 in a direction approaching the box body 20, and simultaneously moves along with the sliding block 12 by a preset distance under the action of the linkage assembly 3, and then 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 inward movement of the door body 30 is completed, that is, the slider 12 is moved to the inner end, and the telescopic rod 323 is in the second state.

The above-mentioned closing of the door to the movable seat 2 and the sliding block 12 are in a linkage state, that is, the closing of the door to the telescopic rod 323 is switched from the second state to the first state, and at this time, the movable seat 2 and the sliding block 12 are in a linkage state.

Referring to fig. 5, a hinge 10a according to a second embodiment of the present invention is shown, for convenience of description, the structures of the second embodiment that are similar or identical to those of the first embodiment are the same or similar numbered, and the structures of the second embodiment that are identical to those of the first 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 is further provided with a first yielding groove 23, the first yielding groove 23 is an arc-shaped groove taking the hinge shaft 21 as a circle center, the first rotating shaft 321 is movably connected in the first yielding groove 23, and the movable seat 2a can only rotate around the hinge shaft 21 in situ, namely in a non-linkage state, through the cooperation of the first rotating shaft 321 and the first yielding groove 23.

In an embodiment, during the rotation of the movable seat 2a around the hinge shaft 21 in a direction away from the fixed seat 1, the movable seat 2a is in the non-linkage state and then in the linkage state, that is, the first rotating shaft 321 is first matched with the first yielding slot 23, so that the movable seat 2a only rotates around the hinge shaft 21 in situ, and then the movable seat 2a is switched to the linkage state. Therefore, when the door is opened, the door body 30 can firstly rotate in place around the hinge shaft 21 to a preset angle in a direction away from the box body 20, then rotate and open inwards under the action of the linkage assembly 3, and at the final stage of closing the door, the door body 30 can firstly rotate in place around the hinge shaft 21 to a preset angle in a direction close to the box body 20, so that the door is suitable for the door body 30 with the turnover beam, and the door body 30 can be opened and closed more conveniently.

It will be appreciated that the predetermined angle is determined by the length of the first relief groove 23.

In the embodiment in which the movable seat 2a is provided with the second sliding groove 22, the first yielding groove 23 is located at an end of the second sliding groove 22 away from the hinge shaft 21, and the first yielding groove 23 is communicated with the second sliding groove 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. 15, 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 a closed state is opened, the door body 30 firstly rotates around the hinge shaft 21 in situ by a preset angle;

after the door body 30 rotates by a preset angle, the movable seat 2a is in a linkage state, and 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 by a preset distance under the action of the linkage assembly 3;

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 is in the linkage state;

after the door is closed until the movable seat 2a is 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 is in a non-linkage state again;

after the movable seat 2a is in the non-linkage state again, 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 by a predetermined angle, that is, the door body 30 is rotated around the hinge shaft 21 to the first rotating shaft 321, and then enters the second chute 22 from the first yielding slot 23.

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 closing of the door to the movable seat 2a is in the linkage state, that is, the closing of the door to the telescopic rod 323 is switched from the second state to the first state.

The movable seat 2a is in a non-linkage state again, that is, the first rotating shaft 321 enters the first yielding groove 23 from the second sliding groove 22 in the closing process.

Referring to fig. 6 to 10, a hinge 10b according to a third 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 first embodiment are not repeated here.

The third embodiment differs from the first embodiment in that: the movable seat 2b comprises a fixed plate 24 fixed on the door body 30, and a linkage plate 25 rotatably connected with the fixed plate 24 through the hinge shaft 21, the second connecting rod 32b is movably connected with the linkage plate 25, the fixed plate 24 has a linkage state relatively fixed with the linkage plate 25 and a release state capable of releasing the linkage plate 25, when the fixed plate 24 is in the linkage state, the linkage assembly 3 can drive the fixed plate 24 and the sliding block 12 to synchronously move, and when the fixed plate 24 is in the release state, the fixed plate 24 can rotate around the hinge shaft 21 in situ so as to drive the door body 30 to rotate around the hinge shaft 21 in situ.

In this embodiment, the second link 32b is an integral link, that is, the second link 32b is a non-telescopic link.

In this embodiment, the limit groove and the limit block, which are matched with each other between the second link 32b and the third link 33, can enhance the stability of the first rotation shaft 321 moving along the second chute 22, and enhance the stability of the hinge 10 b.

It can be understood that in the present embodiment, the linkage plate 25 and the slider 12 are always in a linkage state, and the fixed plate 24 and the slider 12 are controlled to switch between a linkage state and an unbuckled state by switching the fixed plate 24 and the linkage plate 25 between the linkage state and the unbuckled state.

In the hinge 10b of the present embodiment, in the embodiment in which the movable seat 2b is provided with the second chute 22, the second chute 22 is disposed through the fixed plate 24, and the first rotation shaft 321 of the second link 32b is movably connected to the second chute 22, so that the second link 32b is movably connected to the linkage plate 25. In the process that the linkage plate 25 moves around the hinge shaft 21 to a direction away from the fixed seat 1, the linkage assembly 3 drives the sliding block 12 to move towards the inner end, and the first rotating shaft 321 moves towards one end of the second sliding groove 22, which is close to the hinge shaft 21, along the second sliding groove 22, so that the rotating angle of the door body 30 in the process that the sliding block 12 drives the door body 30 to move inwards can be reduced, and the stability of the door opening process is enhanced. Of course, the first shaft 321 may be, but not limited to, only rotatably connected to the linkage plate 25 in other embodiments.

Further, the fixing plate 24 is provided with a third sliding slot 241 extending along a length direction thereof, when the fixing plate 24 and the linkage plate 25 are in a linkage state, the third sliding slot 241 is aligned with the second sliding slot 22, the first rotating shaft 321 is simultaneously matched with the second sliding slot 22 and the third sliding slot 241, and when the first rotating shaft 321 is separated from the third sliding slot 241, the fixing plate 24 and the linkage plate 25 are in a separation state.

That is, the fixed plate 24 is switched between the interlocking state and the disengagement state by the cooperation between the first rotating shaft 321 and the third sliding groove 241, 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 fixed plate 24 and the linkage plate 25 are in the linkage state, the movable seat 2b 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 22 and the third sliding groove 241, which is close to the hinge shaft 21, along the second sliding groove 22 and the third sliding groove 241.

Further, a notch 242 communicating with the third sliding groove 241 is provided on a side of the fixed plate 24 facing the linkage plate 25, the notch 242 is used for the first rotating shaft 321 to disengage from or enter the third sliding groove 241, when the first rotating shaft 321 moves along the third sliding groove 241 to disengage from the third sliding groove 241 through the notch 242, the fixed plate 24 and the linkage plate 25 are in a disengaged state, and the fixed plate 24 can pivot around the hinge shaft 21, i.e. the door body 30 can pivot around the hinge shaft 21 in situ.

Specifically, when the linkage assembly 3 drives the slider 12 to move to one end of the first sliding groove 11 along the preset direction, the first rotating shaft 321 is located at the notch 242, that is, in this embodiment, when the linkage assembly 3 drives the slider 12 to move to the inner end along the first sliding groove 11, the first rotating shaft 321 is located at the notch 242, that is, after the door body 30 is completely moved inwards in the door opening process, the first rotating shaft 321 is located at the notch 242, at this time, the door is continuously opened, and the first rotating shaft 321 is separated from the third sliding groove 241 from the notch 242, so that the fixed plate 24 is switched to a separated state, and therefore, the door body 30 can enter a state of freely rotating around the hinge shaft 21 in situ, thereby facilitating the user to take out objects.

Further, a side of the fixed plate 24 facing the linkage plate 25 has an inclined surface 243 extending obliquely from an end of the third sliding slot 241 away from the hinge shaft 21 toward the hinge shaft 21 and away from the linkage plate 25, and the inclined surface 243 extends to a position where the notch 242 is located, so that the first rotating shaft 321 can conveniently enter and exit the third sliding slot 241 through the notch 242.

Further, an alignment structure 4 is disposed between the fixed plate 24 and the linkage plate 25, and when the fixed plate 24 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 plate 25 and the fixed plate 24, so as to enhance the stability of the operation of the hinge 10 b.

In one embodiment, the alignment structure 4 includes an alignment post 41 disposed on one of the fixing plate 24 and the linkage plate 25, 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. In this embodiment, after the fixing plate 24 rotates around the hinge shaft 21 toward the fixing base 1 in situ until the alignment post 41 abuts against the slot wall of the alignment slot 42, the second sliding slot 22 is aligned with the third sliding slot 241.

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

Further, referring to fig. 15, 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 10b, and the hinge 10b is used for connecting the case 20 and the door 30.

The hinge 10b is the hinge 10b in the third 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 10b 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 fixed plate 24 is in a separated state, and the door body 30 rotates freely 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 fixed plate 24 is in the linkage state;

after the door is closed until the fixed plate 24 and the linkage plate 25 are in the linkage state, the door body 30 rotates around the hinge shaft 21 in a direction approaching the box 20, and moves along with the slider 12 by a preset distance under the action of the linkage assembly 3, and then the door body 30 is in the closed state.

The above-mentioned inward movement of the door 30 is completed, that is, the slide block 12 moves to the inner end, and at this time, the first rotating shaft 321 is located at the notch 242, so that the first rotating shaft 321 is separated from the third sliding groove 241 through the notch 242.

The above-mentioned closing of the door to the fixed plate 24 and the linkage plate 25 are in the linkage state, that is, the closing of the door to the first rotating shaft 321 enters the third sliding slot 241 from the notch 242. It can be appreciated that, after the alignment post 41 abuts against the groove wall of the alignment groove 42, the third sliding groove 241 is aligned with the second sliding groove 22, so as to facilitate the first rotating shaft 321 to enter the third sliding groove 241.

Referring to fig. 11-14, a hinge 10c according to a fourth embodiment of the present invention is shown, for convenience of description, the similar or identical structures of the fourth embodiment and the third embodiment are denoted by the same or similar reference numerals, and the identical structures of the fourth embodiment and the third embodiment are not repeated herein.

The hinge 10c in the fourth embodiment of the present invention is different from the hinge 10c in the third embodiment in that: the fixed plate 24 and one of the linkage plates 25 are provided with a second yielding slot 244, the other one is provided with a protruding shaft matched with the second yielding slot 244, the second yielding slot 244 is an arc slot taking the hinge shaft 21 as a circle center, and the protruding shaft is matched with the second yielding slot 244, so that the fixed plate 24 can independently rotate around the hinge shaft 21 in situ relative to the linkage plate 25.

In one embodiment, the protruding shaft mates with the second relief groove 244 when the door 30 is in the closed state. That is, when the movable base 2c rotates around the hinge shaft 21 in a direction away from the fixed base 1, the fixed plate 24 rotates around the hinge shaft 21 at a predetermined angle in place under the cooperation of the protruding shaft and the second yielding groove 244, and then the fixed plate 24 enters a linkage state of being linked with the linkage plate 25. 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.

In one embodiment, the second yielding groove 244 is disposed on the fixing plate 24, and the protruding shaft is the first rotating shaft 321, so as to simplify the structure of the hinge 10 c.

In the embodiment in which the second yielding groove 244 is disposed on the fixing plate 24 and the third sliding groove 241 is disposed on the fixing plate 24, the second yielding groove 244 is disposed at one end of the third sliding groove 241 away from the hinge shaft 21, and the second yielding groove 244 is communicated with the third sliding groove 241.

It can be appreciated that in the present embodiment, the alignment structure 4 is configured to achieve the alignment between the fixing plate 24 and the linkage plate 25 after the fixing plate 24 rotates around the hinge shaft 21 in a direction approaching to the fixing base 1 until the first rotating shaft 321 enters the second yielding groove 244 from the third sliding groove 241.

The hinge 10c in the fourth embodiment of the present invention is identical to the hinge 10b in the third embodiment except for the differences described above, and will not be described again.

Further, 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 10c, and the hinge 10c is used for connecting the case 20 and the door 30.

The hinge 10c is the hinge 10c in the fourth 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 10c 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 fixed plate 24 is in the linkage state;

After the fixed plate 24 and the linkage plate 25 are 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 fixed plate 24 is in a detachable state, and the door body 30 can rotate freely 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 fixed plate 24 and the linkage plate 25 are in the linkage state;

after the door is closed until the fixed plate 24 and the linkage plate 25 are 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 until the fixed plate 24 and the linkage plate 25 are in a non-linkage state;

after the fixed plate 24 and the linkage plate 25 are in the non-linkage state, the door 30 is in the closed state after the door 30 is pivoted in place by a predetermined angle about the hinge shaft 21 toward the housing 20.

It can be appreciated that, during the door opening process, the door body 30 is first rotated around the hinge shaft 21 by a predetermined angle until the fixed plate 24 and the linkage plate 25 are in the linkage 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 241 from the second yielding groove 244, and at this time, the third sliding groove 241 is aligned with the second sliding groove 22.

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 242.

The above-mentioned closing of the door to the fixing plate 24 and the linkage plate 25 are in the linkage state, that is, the closing of the door to the first rotating shaft 321 enters the third sliding slot 241 from the notch 242, and at this time, the third sliding slot 241 is aligned with the second sliding slot 22.

The above-mentioned fixed plate 24 and the linkage plate 25 are in a non-linkage state, that is, the first rotating shaft 321 enters the second yielding groove 244 from the third sliding groove 241 during the closing process.

In summary, the hinge 10 of the present invention is provided with the linkage assembly 3, which is used to link the slider 12 on the fixed seat 1 and the movable seat 2, so as to control the motion track of the door body 30, enhance the universality of the door body 30, and enable the door body 30 to be suitable for various application scenarios, such as the application scenario of an embedded refrigerator.

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 for connecting a door to a case; characterized in that the hinge comprises:

a linkage assembly, the linkage assembly comprising:

2. The hinge of claim 1, wherein the first sliding groove extends along a length direction of the fixing base, the first sliding groove has an outer end close to the hinge shaft and an inner end far away from the hinge shaft, and the second connecting rod is connected to an end of the fixing base corresponding to the inner end.

3. The hinge of claim 2, wherein the movable mount further has a non-linked state of rotation only about the hinge axis, the second link comprising a telescoping rod movably coupled to the movable mount, the telescoping rod having a first non-telescoping state and a second telescoping state, the movable mount being in the non-linked state when the telescoping rod is in the second state.

4. A hinge according to claim 3, wherein one of the telescopic rod and the third link is provided with a limit slot, and the other is provided with a limit block matched with the limit slot, and when the limit block is positioned in the limit slot, the telescopic rod is in a first state, and when the limit block is separated from the limit slot, the telescopic rod is in a second state.

5. A hinge according to claim 3 or 4, wherein the telescopic rod is in the first state and then in the second state during rotation of the movable seat about the hinge in a direction axially away from the fixed seat.

6. The hinge according to claim 1, wherein the movable base further has a non-linked state of rotating only about the hinge axis, the movable base is provided with a first yielding slot, the first yielding slot is an arc slot with the hinge axis as a center of a circle, and when the movable base is in the non-linked state, a first rotating shaft on the second connecting rod, which is matched with the movable base, is movably connected in the first yielding slot.

7. The hinge according to claim 6, wherein the movable seat is in the non-interlocked state and then in the interlocked state during rotation of the movable seat about the hinge in a direction axially away from the fixed seat.

8. The hinge according to claim 1, wherein the movable base is provided with a second chute extending along a length direction thereof, and the second link is movably connected to the second chute.

9. The hinge according to claim 2 or 8, wherein the movable seat comprises a fixed plate fixed on the door body, a linkage plate rotatably connected with the fixed plate through the hinge shaft, the second connecting rod is movably connected with the linkage plate, the fixed plate has a linkage state relatively fixed with the linkage plate and a release state capable of being released from the linkage plate, the linkage assembly can drive the fixed plate and the sliding block to synchronously move when the fixed plate is in the linkage state, and the fixed plate can rotate around the hinge shaft in situ when the fixed plate is in the release state.

10. The hinge according to claim 9, wherein the movable seat is provided with a second chute extending along a length direction thereof, the second chute is arranged on the fixed plate in a penetrating manner, and the second connecting rod is provided with a first rotating shaft in sliding connection with the second chute; the fixed plate is provided with a third sliding groove extending along the length direction of the fixed plate, when the fixed plate 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 fixed plate is in a disengaging state, the first rotating shaft is disengaged from the third sliding groove.

11. The hinge according to claim 10, wherein a notch communicating with the third chute is provided on a side of the fixed plate facing the linkage plate, the notch is disposed through in a width direction of the fixed plate, and the first rotating shaft is located at the notch when the linkage assembly drives the slider to move to one end of the first chute in a preset direction.

12. The hinge according to claim 11, wherein a side of the fixed plate facing the link plate has an inclined surface extending obliquely from an end of the third slide groove away from the hinge shaft toward the hinge shaft and in a direction away from the link plate, the inclined surface extending to a position where the notch is located.

13. The hinge according to claim 9, wherein one of the fixed plate and the linkage plate is provided with a second relief groove, and the other one of the fixed plate and the linkage plate is provided with a protruding shaft matched with the second relief groove, and the second relief groove is an arc-shaped groove with the hinge shaft as a center of a circle.

14. The hinge according to claim 9, wherein an alignment structure is provided between the fixed plate and the link plate, the alignment structure being configured to align a relative position between the link plate and the fixed plate when the fixed plate is rotated about the hinge axis toward the fixed seat in situ.

15. The hinge according to claim 14, wherein the alignment structure includes an alignment post provided on one of the movable plate and the link plate, an alignment slot provided on the other, the alignment slot having an access opening for the alignment post.

16. The hinge according to claim 1, wherein the fixing base is further provided with a bump, and the first link abuts against the bump to limit the rotation of the first link after the linkage assembly drives the slider to move to one end of the first chute along a preset direction.

17. The hinge of claim 1, further comprising a docking post provided on the movable mount for securing the movable mount to the door body.

18. A refrigeration device comprising a cabinet, a door, and a hinge according to any one of claims 1 to 17.