CN219887849U - Door opening and closing structure for refrigerator and refrigerator - Google Patents

Abstract

The utility model relates to the technical field of household appliances, and discloses a door opening and closing structure for a refrigerator, which comprises a refrigerator body mounting seat and a door body connecting seat, and further comprises: the hinge assembly is hinged with the box body mounting seat and the door body mounting seat and comprises a first connecting rod and a sliding part arranged on the first connecting rod, the sliding part can rotationally slide along a sliding groove arranged on the box body mounting seat, and the first end of the first connecting rod is hinged with the door body mounting seat; the door closer is configured to be arranged on a refrigerator body of the refrigerator and is connected with the sliding part; wherein, in the open and the in-process of closing of refrigerator door body, the slider slides along the spout, and the door closer can produce the pulling force to the slider. The utility model can generate a certain damping effect on the opening of the door body when the refrigerator door body is opened, and can realize the automatic closing of the door body when the refrigerator door body is closed to a smaller included angle with the refrigerator body. And, the door closer can generate a greater force on the hinge assembly and reduce the thickness of the hinge assembly. The utility model also discloses a refrigerator.

Description

Door opening and closing structure for refrigerator and refrigerator

Technical Field

The utility model relates to the technical field of household appliances, in particular to a door opening and closing structure for a refrigerator and the refrigerator.

Background

When the embedded refrigerator is opened, the door body of the embedded refrigerator cannot collide with obstacles beside the embedded refrigerator, and meanwhile, the internal drawer shelf and the like are ensured to be normally pulled out for use, and in addition, the door body is ensured to be capable of automatically closing in a small-angle opening state. The embedded refrigerator is characterized in that a box body mounting seat is arranged between the door body and the box body, a hinge assembly is arranged in the box body mounting seat, and the hinge assembly can be unfolded or folded in the process of opening or closing the door body. The door closer is further arranged in the box body mounting seat, the door closer comprises a spring, and the automatic closing effect of the refrigerator door body after being closed to a specific angle can be achieved through the thrust of the precompressed spring.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the whole thickness of hinge subassembly and door closer combination back is thicker, leads to its installation crossbeam also corresponding thickening, causes extravagant to the whole volume of refrigerator, and the effort of door closer to hinge subassembly is also less.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the utility model and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a door opening and closing structure for a refrigerator and the refrigerator, which can reduce the thickness of a hinge assembly and enable a door closer to generate larger acting force on the hinge assembly.

In some embodiments, a door opening and closing structure for a refrigerator includes a case mounting seat and a door body connecting seat, further comprising:

the hinge assembly is hinged with the box body mounting seat and the door body mounting seat and comprises a first connecting rod and a sliding part arranged on the first connecting rod, the sliding part can rotationally slide along a sliding groove arranged on the box body mounting seat, and the first end of the first connecting rod is hinged with the door body mounting seat;

the door closer is configured to be arranged on a refrigerator body of the refrigerator and is connected with the sliding part;

wherein, in the open and the in-process of closing of refrigerator door body, the slider slides along the spout, and the door closer can produce the pulling force to the slider.

In some embodiments, a door closer includes:

the elastic piece is configured to be arranged on the refrigerator body of the refrigerator, one end of the elastic piece is connected with the sliding part, the elastic piece is stretched in the opening process of the refrigerator door body, and the elastic piece is retracted in the closing process of the refrigerator door body.

In some embodiments, the resilient member comprises:

the cylinder is arranged on the refrigerator body of the refrigerator;

one end of the piston rod is connected with the cylinder;

the spacer is arranged between the piston rod and the sliding part, is connected with the other end of the piston rod and is hinged with the sliding part, and the spacer can transmit acting force of the piston rod to the sliding part to generate pulling force on the sliding part in the opening and closing process of the refrigerator door body.

In some embodiments, the cylinder is disposed in parallel with a front side of an upper or lower portion of a cabinet of the refrigerator, and the spacer is hinged with the piston rod.

In some embodiments, the resilient member comprises:

the cylinder is arranged on the refrigerator body of the refrigerator;

and one end of the piston rod is connected with the air cylinder, the other end of the piston rod is hinged with the sliding part, and the piston rod can generate tension to the sliding part in the opening and closing process of the refrigerator door body.

In some embodiments, the resilient member comprises:

and one end of the spring assembly is connected with the refrigerator body of the refrigerator, and the other end of the spring assembly is hinged with the sliding part.

In some embodiments, the elastic member is disposed at an upper portion and/or a lower portion of the cabinet of the refrigerator, and is adjacent to a front side of the cabinet.

In some embodiments, the slide includes:

the pin shaft penetrates through the first connecting rod along the thickness direction of the first connecting rod, extends to the outer side of the first connecting rod and is rotationally connected with the first connecting rod;

the shaft sleeve is connected with the first connecting rod and sleeved at the part of the pin shaft positioned at the outer side of the first connecting rod, is limited on the sliding groove and can rotationally slide relative to the sliding groove;

wherein, door closer is connected with the round pin axle.

In some embodiments, the hinge assembly further comprises:

the second connecting rod is hinged with the first connecting rod in an X shape and comprises a third end and a fourth end, and the third end is hinged with the box body mounting seat;

and one end of the third connecting rod is hinged with the door body mounting seat, and the other end of the third connecting rod is hinged with the fourth end of the second connecting rod.

In some embodiments, a refrigerator includes:

a case;

the door body is rotationally connected with the box body;

the door opening and closing structure for a refrigerator according to any one of the preceding claims, provided between the door body and the case body.

The embodiment of the disclosure provides a door opening and closing structure for a refrigerator and the refrigerator, which can realize the following technical effects: the door closer is configured to be arranged on a refrigerator body of the refrigerator, namely, is positioned outside a refrigerator body mounting seat, and is connected with a sliding part of a first connecting rod of the hinge assembly, the sliding part rotationally slides along a sliding groove of the refrigerator body mounting seat and is far away from the door closer in the process of opening the refrigerator door body, and the door closer can generate a pulling force on the sliding part in the process of opening the door body to a small included angle with the refrigerator body, and the direction of the pulling force is opposite to the moving direction of the sliding part, so that a certain damping effect is generated on the opening of the door body; under the condition that the refrigerator door body is closed to be smaller in included angle with the refrigerator body, the door closer generates pulling force which is the same as the moving direction of the sliding part, folding of the hinge assembly is facilitated, and therefore automatic closing of the door body can be achieved.

And the door closer is arranged outside the box body mounting seat, and compared with the door closer arranged inside the box body mounting seat, the door closer can generate larger acting force on the hinge assembly, and meanwhile, the thickness of the hinge assembly can be reduced, and correspondingly, the thickness of the mounting cross beam is also reduced, so that the occupation of the whole volume of the refrigerator can be reduced.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the utility model.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic view of a door opening and closing structure for a refrigerator according to an embodiment of the present disclosure;

fig. 2 is a schematic view of a refrigerator top according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a hinge assembly provided in an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of another hinge assembly provided by an embodiment of the present disclosure;

fig. 5 is a schematic view of another door opening and closing structure for a refrigerator provided in an embodiment of the present disclosure;

fig. 6 is a schematic view of another door opening and closing structure for a refrigerator provided in an embodiment of the present disclosure;

fig. 7 is a partial schematic view of another door opening and closing structure for a refrigerator provided in an embodiment of the present disclosure.

Reference numerals:

10. a case; 110. a receiving groove; 20. a door body; 30. a box body mounting seat; 310. a chute; 40. a door body connecting seat; 50. a hinge assembly; 510. a first link; 520. a sliding part; 5201. a shaft sleeve; 5202. a pin shaft; 530. a second link; 540. a third link; 60. a door closer; 610. a cylinder; 620. a piston rod; 630. a spacer; 640. a spring assembly; 6401. a first connection base; 6402. a body; 6403. and the second connecting seat.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and tanks may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated tank, element or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; can be directly connected or indirectly connected through an intermediate medium, or can be communicated internally between two water tanks, elements or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

Referring to fig. 1 and 2, the disclosed embodiment provides a door opening and closing structure for a refrigerator, including a case mounting seat 30 and a door body connecting seat 40, and further including a hinge assembly 50 and a door closer 60; the hinge assembly 50 is hinged with the box body mounting seat 30 and the door body connecting seat 40, and comprises a first connecting rod 510 and a sliding part 520 arranged on the first connecting rod 510, wherein the sliding part 520 can rotationally slide along a sliding groove 310 arranged on the box body mounting seat 30, and a first end of the first connecting rod 510 is hinged with the door body connecting seat 40; the door closer 60 is configured to be provided to the case 10 of the refrigerator and connected to the sliding part 520; during the opening of the refrigerator door 20, the sliding portion 520 slides along the chute 310 in a direction away from the door closer 60, and the door closer 60 can generate a force against the sliding portion 520 in a direction opposite to the moving direction of the sliding portion 520.

In the disclosed embodiment, a case mount 30 is provided to the refrigerator case 10 for mounting the hinge assembly 50. The case mount 30 has an accommodating space capable of accommodating a portion of the hinge assembly 50 when the hinge assembly 50 is in a fully folded state. The refrigerator body mounting base 30 is disposed at an upper portion and/or a lower portion of the refrigerator body 10 and is disposed near a rotation shaft position of the refrigerator door 20. The case mount 30 is provided with a chute 310, and the chute 310 can function as a rail to slide the components disposed therein along a trajectory defined thereby.

The fully folded state of the hinge assembly 50 refers to a folded state of the refrigerator door 20 corresponding to the hinge assembly 50 in the closed state. The fully unfolded state of the hinge assembly 50 refers to an unfolded state of the refrigerator door 20 corresponding to when it is opened to a maximum angle. In a state that the refrigerator door 20 is closed, the hinge assembly 50 is completely folded; when the refrigerator door 20 is switched from the closed state to the open state, the hinge assembly 50 is switched from the fully folded state to the unfolded state; when the refrigerator door 20 is opened to a maximum angle, the hinge assembly 50 is fully unfolded.

In the embodiment of the present disclosure, the door body connecting seat 40 is disposed at the refrigerator door body 20 opposite to the door body mounting seat 30, and the hinge assembly 50 is disposed between the door body mounting seat 30 and the door body connecting seat 40 and connected with the door body mounting seat 30 and the door body connecting seat 40. The door body connecting seat 40 also has a receiving space for receiving the hinge assembly 50, and in the fully folded state of the hinge assembly 50, the hinge assembly 50 is partially disposed in the receiving space of the box body mounting seat 30 and partially disposed in the receiving space of the door body connecting seat 40.

In the state that the hinge assembly 50 is completely folded, the case mounting seat 30 is opposite and parallel to the door body connecting seat 40; during the time that the hinge assembly 50 is fully folded to fully unfolded, the door connecting seat 40 rotates relative to the box mounting seat 30 and gradually moves away from the box mounting seat 30.

In the embodiment of the present disclosure, the hinge assembly 50 includes a first link 510, and the first link 510 is provided with a sliding portion 520 rotatably and slidably coupled with the chute 310. In the fully folded state of the hinge assembly 50, the sliding portion 520 is located at one end of the sliding chute 310 away from the rotation axis of the door body 20, and during the gradual unfolding of the hinge assembly 50, the sliding portion 520 slides toward the other end of the sliding chute 310, i.e., the end near the rotation axis of the door body 20. During the unfolding of the hinge assembly 50, the sliding portion 520 also rotates relative to the sliding slot 310 due to the rotation of the first link 510 relative to the sliding slot 310. The rotational sliding connection facilitates positional adjustment of the first link 510 relative to the housing mount 30.

The first link 510 is rotatably and slidably coupled to the case mount 30 through a sliding portion 520, and the first end is hinged to the case mount 40. During the process of opening the door 20, the first end is pulled by the door connecting seat 40 to drive the sliding portion 520 to move along the sliding slot 310.

The door closer 60 is disposed in the refrigerator case 10, and compared with the door closer 60 which is disposed in the case mount 30, the door closer 60 has a larger force arm to the hinge assembly 50, and can generate a larger force to the hinge assembly 50. And, after the door closer 60 is externally arranged on the box body mounting seat 30, the thickness of the box body mounting seat 30 can be reduced, and the thickness of the cross beam for mounting the box body mounting seat 30 is correspondingly reduced, so that the occupation of the whole volume of the refrigerator is reduced. And, the door closer 60 is provided to the cabinet 10 of the refrigerator, and the structural style of the door closer 60 breaks through the space restriction of the cabinet mount 30, thereby providing a premise for enhancing the acting force thereof on the hinge assembly 50.

In the actual movement process, when the refrigerator door 20 is opened, the door body connecting seat 40 drives the first end of the first connecting rod 510 to move, and then drives the sliding portion 520 to slide along the sliding groove 310 towards the end far away from the door closer 60, when the door 20 moves from the closed state to the open angle being smaller, the door closer 60 can generate a pulling force on the sliding portion 520, and the direction of the pulling force is opposite to the moving direction of the sliding portion 520, so that the hinge assembly 50 is unfolded to receive a certain resistance, and the door 20 has a damping effect when the open angle is smaller. In the process of closing the door 20, when the refrigerator door 20 is closed to have a small included angle with the refrigerator door 10, the direction of pulling force of the door closer 60 to the sliding portion 520 is the same as the moving direction of the sliding portion 520, which is conducive to folding the hinge assembly 50, so that the door 20 can be automatically closed.

The door opening and closing structure for a refrigerator provided in the embodiments of the present disclosure sets the door closer 60 on the refrigerator body 10 of the refrigerator, that is, on the outside of the refrigerator body mounting seat 30, and connects the door closer 60 with the sliding portion 520 of the first link 510 of the hinge assembly 50, when the refrigerator door 20 is opened and closed, the hinge assembly 50 has a folding tendency under the action of the tension of the door closer 60 when the included angle between the door 20 and the refrigerator body 10 is smaller, and the door 20 can be automatically closed. And, door closer 60 sets up in box mount pad 30 outside, compares in box mount pad 30 inside, can produce bigger effort to hinge assembly 50, simultaneously, can reduce the thickness of the installation crossbeam that is used for installing box mount pad 30 to can the whole volume of rational utilization refrigerator.

Optionally, the sliding portion 520 extends away from the first link 510 and extends into the chute 310. In this way, the sliding connection between the sliding portion 520 and the chute 310 can be achieved. Optionally, the chute 310 is elongated.

Optionally, the upper and/or lower portion of the case 10 is provided with a receiving groove 110 for receiving the door closer 60. Alternatively, the receiving groove 110 is provided corresponding to the position of the door body 20. In this way, occupation of the internal volume of the refrigerator can be avoided. Optionally, the case 10 is provided with an upper beam and a lower beam, and the door closer 60 is provided to the upper beam and/or the lower beam. The upper and lower beams of the cabinet 10 have enough space to install the door closer 60, which can avoid occupying the volume space of the refrigerator.

Alternatively, the air cylinder 610 is disposed in the receiving groove 110, and the refrigerator fixes the air cylinder 610 in the receiving groove 110 by providing the first fixing member and the second fixing member. Alternatively, the first fixing member is disposed in the receiving groove 110 and provided with a through hole through which the cylinder 610 passes, and the first fixing member is coupled with the case 10 by a screw. The second fixing member is disposed in the accommodating groove 110 and connected to an end of the cylinder 610 extending away from the piston rod 620. The second fixing member is coupled to the bottom of the receiving groove 110 by a screw. By providing the first fixing member and the second fixing member, the cylinder 610 can be firmly and stably mounted in the accommodating groove 110.

Optionally, the first link 510 further includes a second end, and the sliding portion 520 is disposed at the second end. The first end of the first link 510 is hinged to the door body connecting seat 40, and the sliding portion 520 is disposed at the other end, and in the opening or closing process of the door body 20, the door body connecting seat 40 drives the first end to move, so as to drive the sliding portion 520 on the second end to slide in the sliding groove 310, thereby finally forming the effect of the rotational movement of the first link 510.

In some embodiments, the door closer 60 includes an elastic member configured to be disposed at the refrigerator body 10 of the refrigerator, one end of which is connected to the sliding portion 520, the elastic member being stretched during the opening of the refrigerator door 20, and retracted during the closing of the refrigerator door 20.

In the embodiment of the present disclosure, the elastic member is provided at the cabinet 10 of the refrigerator, and during the opening of the door 20, a tensile force is generated to the sliding portion 520 while being pulled by the sliding portion 520, and the sliding portion 520 moves in a direction away from the door closer 60, so that the elastic member is gradually stretched from an initial state. During the closing process of the door body 20, the sliding portion 520 moves toward the direction approaching the door closer 60, the elastic member retracts to gradually return to the original state, and the pulling force applied by the elastic member can assist the sliding portion 520 approaching the door closer 60.

Optionally, elastic members are provided at the upper and/or lower beams of the case 10. The upper and lower beams of the case 10 have sufficient space to provide the elastic member and facilitate the connection of the elastic member with the hinge assembly 50. Through setting up the elastic component at the roof beam and/or the underbeam of box 10, can reduce the occupation to the refrigerator volume to make the upper door body 20 of refrigerator and lower door body 20 all pull hinge assembly 50 through the elastic component, realize automatic door closing effect.

Alternatively, the hinge assembly 50 is disposed at a rotation axis of the refrigerator door 20, and the elastic member is disposed at the refrigerator door 10 and is away from the rotation axis relative to the hinge assembly 50.

In some embodiments, the resilient member comprises: the air cylinder 610, the piston rod 620 and the spacer 630, the air cylinder 610 being disposed at the cabinet 10 of the refrigerator; one end of the piston rod 620 is connected with the cylinder 610; the spacer 630 is disposed between the piston rod 620 and the sliding part 520, is connected to the other end of the piston rod 620, and is hinged to the sliding part 520, and the spacer 630 can transmit the force of the piston rod 620 to the sliding part 520 to generate a pulling force on the sliding part 520 during the opening and closing of the refrigerator door 20.

In the embodiment of the present disclosure, one end of the piston rod 620 is connected to the cylinder 610, a part of the piston rod 620 is located inside the cylinder 610, and the other part extends out of the cylinder 610, so that when the piston rod 620 is pulled, the part located inside the cylinder 610 can be pulled out, and the piston rod 620 is extended, and when the pulling force is removed, the piston rod 620 is retracted inside the cylinder 610.

In the embodiment of the present disclosure, the spacer 630 is disposed between the piston rod 620 and the sliding portion 520, and the acting force is transmitted through the spacer 630, so that the spacer 630 is hinged to the other end of the piston rod 620 and is hinged to the sliding portion 520, and thus, when the sliding portion 520 moves, the piston rod 620 can be always maintained in a state parallel to the front side of the door body 20 by the rotation of the end of the spacer 630, and the tensile force generated to the hinge assembly 50 is more stable. And, by providing the spacer 630, the stroke of the piston rod 620 can be reduced, the force of the elastic member to the hinge assembly 50 can be enhanced, and the door closing effect can be improved.

Alternatively, the spacer 630 is a pull rod, one end of which is connected to the piston rod 620 and the other end of which is hinged to the sliding portion 520. In this way, the transmission of the force can be realized, and the piston rod 620 can be kept parallel to the front side of the case 10 all the time during the extension and retraction, thereby generating a stable pulling force on the hinge assembly 50.

Alternatively, the cylinder 610 is provided with an adjusting knob by which the pulling force of the piston rod 620 can be adjusted, thereby adjusting the magnitude of the closing force.

In some embodiments, the cylinder 610 is disposed in parallel with the front side of the upper or lower portion of the cabinet 10 of the refrigerator, and the spacer 630 is hinged with the piston rod 620.

The cylinder 610 may be disposed at an upper portion and/or a lower portion of the case 10, and when the cylinder 610 is disposed at the upper portion of the case 10, it is parallel to a front side of the upper portion of the case 10; when the cylinder 610 is disposed at the lower portion of the cabinet 10, it is parallel to the front side of the lower portion of the cabinet 10. Under the action of the spacer 630, the piston rod 620 is always kept parallel to the front side of the case 10 during extension and retraction, thereby generating a stable pulling force on the hinge assembly 50.

As shown in connection with fig. 1, 2, in some embodiments, the resilient member comprises: the refrigerator comprises an air cylinder 610, a piston rod 620 and a pull rod, wherein the air cylinder 610 is arranged on a refrigerator body 10 of the refrigerator; one end of the piston rod 620 is connected to the cylinder 610; the pull rod is arranged between the piston rod 620 and the sliding part 520, one end of the pull rod is hinged with the other end of the piston rod 620, and the other end of the pull rod is hinged with the sliding part 520; the cylinder 610 and the piston rod 620 are disposed in parallel with the front side of the upper or lower portion of the cabinet 10 of the refrigerator; during the opening and closing of the refrigerator door 20, the pull rod transmits the force of the piston rod 620 to the sliding part 520 to generate a pulling force on the sliding part 520.

With the embodiments of the present disclosure, the stroke of the piston rod 620 can be reduced on the one hand, and a stable pulling force can be generated on the hinge assembly 50 on the other hand.

Optionally, a columnar protrusion is disposed at the end of the piston rod 620 connected to the pull rod, and a through hole is disposed at one end of the pull rod and sleeved outside the columnar protrusion. In this way, articulation of the pull rod with the piston rod 620 can be achieved. Alternatively, the sliding portion 520 includes a pillar bump extending to the outside of the sliding groove 310, and the other end of the pull rod is provided with a through hole, which is sleeved at the outside of the pillar bump. In this way, the hinge of the tie rod with the sliding portion 520 can be achieved. Optionally, a limiting portion is provided on the outer side of the stud bump and the stud bump to prevent the tie rod from being separated from the stud bump or stud bump.

As shown in fig. 5, in some embodiments, the elastic member includes a cylinder 610 and a piston rod 620, and the cylinder 610 is provided to the cabinet 10 of the refrigerator; one end of the piston rod 620 is connected to the cylinder 610, and the other end is hinged to the sliding part 520, and the piston rod 620 can generate a pulling force on the sliding part 520 during the opening and closing of the refrigerator door 20.

In the embodiment of the present disclosure, the piston rod 620 is directly hinged to the sliding portion 520, and when the sliding portion 520 moves along the sliding slot 310, the piston rod 620 can directly generate a pulling force on the sliding portion 520, so that the door body 20 can be subjected to a door closing force during the opening and closing process. In addition, the piston rod 620 is directly hinged with the sliding part 520, so that other transmission components are omitted, and the occupied space of the door closer 60 can be further reduced.

Alternatively, the cylinder 610 is disposed obliquely with respect to the front side of the upper or lower portion of the case 10. In this way, the extending track of the piston rod 620 is also inclined with respect to the front side of the case 10, so that the piston rod 620 is connected to the sliding part 520.

As shown in connection with fig. 6 and 7, in some embodiments, the elastic member includes a spring assembly 640, and one end of the spring assembly 640 is connected to the cabinet 10 of the refrigerator and the other end is hinged to the sliding portion 520.

During the opening of the refrigerator door 20, the sliding portion 520 moves along the sliding chute 310 in a direction away from the spring assembly 640, and the spring assembly 640 is stretched and generates a pulling force on the sliding portion 520; during the gradual closing of the refrigerator door 20, the sliding portion 520 moves toward the direction approaching the spring assembly 640, and the spring assembly 640 gradually returns to the original state, generating the same tensile force to the sliding portion 520 as the moving direction of the sliding portion 520, facilitating the folding of the hinge assembly 50. When the included angle between the door 20 and the case 10 is small, the refrigerator can realize an automatic door closing effect under the acting force of the spring assembly 640.

The embodiment of the disclosure sets the spring assembly 640 in the case 10, and generates a pulling force to the sliding part 520 of the hinge assembly 50 through the spring assembly 640 in the opening and closing processes of the refrigerator door 20, thereby realizing an automatic door closing effect of the door 20, and generating a certain damping effect when the opening angle of the door 20 is smaller.

Optionally, the spring assembly 640 includes: the first connecting seat 6401, the body 6402 and the second connecting seat 6403, the first connecting seat 6401 is rotationally connected with the box 10, the second connecting seat 6403 is sleeved on the outer side of the sliding part 520, one end of the body 6402 is connected with the first connecting seat 6401, and the other end is connected with the second connecting seat 6403.

Optionally, the case 10 is provided with a protruding column, and the first connecting seat 6401 is sleeved on the outer side of the protruding column and can rotate relative to the protruding column. In this way, when the sliding portion 520 moves, the second connecting seat 6403 is pulled by force, so as to drive the main body 6402 to be stretched and rotate relative to the case 10, so as to generate a pulling force on the sliding portion 520.

In some embodiments, the elastic member is provided at an upper portion and/or a lower portion of the cabinet 10 of the refrigerator and near a front side of the cabinet 10. The elastic member may be disposed at an upper portion and/or a lower portion of the case 10, and the hinge assembly 50 is disposed at an upper portion and/or a lower portion of the case 10 corresponding to the elastic member, which is adjacent to a front side of the case 10, so as to be connected with the sliding portion 520 of the hinge assembly 50.

As shown in conjunction with fig. 3 and 4, in some embodiments, the sliding portion 520 includes a pin 5202 and a sleeve 5201, wherein the pin 5202 penetrates the first link 510 in a thickness direction of the first link 510 and extends to an outer side of the first link 510 to be rotatably connected with the first link 510; the shaft sleeve 5201 is connected with the first connecting rod 510 and sleeved at the part of the pin shaft 5202, which is positioned outside the first connecting rod 510, is limited on the chute 310 and can rotate and slide relative to the chute 310; the door closer 60 is connected to the pin 5202.

In this embodiment, the first link 510 is slidably connected to the chute 310 through a sleeve 5201, and the sleeve 5201 is limited inside the chute 310 and can rotate relative to the chute 310 and move along the chute 310. The pin 5202 penetrates the sleeve 5201 and the first link 510 and extends to the outside of the first link 510, and the pin 5202 can rotate relative to the sleeve 5201 and the first link 510. The door closer 60 is connected to the pin 5202, and the door closer 60 is hinged to the first link 510, so that the door closer 60 can rotate relative to the sliding portion 520 when the sliding portion 520 slides in rotation.

Alternatively, the elastic member includes a cylinder 610 and a piston rod 620, the cylinder 610 being provided to the cabinet 10 of the refrigerator; one end of the piston rod 620 is connected with the cylinder 610, and the other end is sleeved on the outer side of the pin 5202 and can rotate relative to the pin 5202, and the piston rod 620 can generate a pulling force on the sliding part 520 during the opening and closing process of the refrigerator door 20.

Optionally, the elastic member includes: the refrigerator comprises an air cylinder 610, a piston rod 620 and a pull rod, wherein the air cylinder 610 is arranged on a refrigerator body 10 of the refrigerator; one end of the piston rod 620 is connected to the cylinder 610; the pull rod is arranged between the piston rod 620 and the sliding part 520, one end of the pull rod is hinged with the other end of the piston rod 620, and the other end of the pull rod is sleeved on the outer side of the pin 5202 and can rotate relative to the pin 5202; during the opening and closing of the refrigerator door 20, the pull rod transmits the force of the piston rod 620 to the sliding part 520 to generate a pulling force on the sliding part 520.

As shown in connection with fig. 6 and 7, the elastic member may alternatively include a spring assembly 640, and the spring assembly 640 includes: the first connecting seat 6401, the body 6402 and the second connecting seat 6403, first connecting seat 6401 rotates with box 10 to be connected, and the outside of round pin axle 5202 is arranged in to the second connecting seat 6403 cover, and first connecting seat 6401 is connected to the one end of body 6402, and second connecting seat 6403 is connected to the other end.

As shown in connection with fig. 3 and 4, in some embodiments, the hinge assembly 50 further includes a second link 530 and a third link 540; the second connecting rod 530 is hinged with the first connecting rod 510 in an X shape and comprises a third end and a fourth end, and the third end is hinged with the box body mounting seat 30; one end of the third link 540 is hinged with the door body connection base 40, and the other end is hinged with the fourth end of the second link 530.

By adopting the door opening and closing structure provided by the embodiment of the disclosure, the first connecting rod 510 and the second connecting rod 530 of the hinge assembly 50 are mutually connected to bear the weight of the refrigerator door 20 together, and are both arranged into a sheet-shaped structure, so that the surfaces of the two are directly abutted against each other, and the purpose of reducing the thickness of the whole hinge is achieved by reducing the thickness of each of the two and the gap between the two; and the first connecting rod 510 and the second connecting rod 530 are mutually abutted, so that the contact area of the first connecting rod 510 and the second connecting rod is increased, the whole contact surface can be stressed, the supportability is improved, the normal supporting effect of the hinge can be further maintained, and the whole thickness of the hinge is reduced.

Optionally, the third link 540 has a length less than the first link 510 and the second link 530. When the links are in the storage state, the third link 540 is folded to be close to the first link 510 and the second link 530, and one end of the first link 510 and one end of the third link 540 are used for connecting the door body 20, so that the length of the third link 540 is set to be smaller than the lengths of the first link 510 and the second link 530, so that after the third link 540 is folded, one end of the third link 540 is kept at a sufficient distance from one end of the first link 510, and further, two points for connecting the door body 20 have a sufficient gap, so that the balance of the holding force is better, and the overall supporting capability of the hinge is improved.

Optionally, the first link 510, the second link 530, and the third link 540 are all solid structures. In this way, the first link 510, the second link 530 and the third link 540 are all configured as a solid structure, so that the thickness thereof is reduced while maintaining sufficient supporting force, and the hinge has a sufficient bearing effect as a whole, thereby preventing deformation damage.

Optionally, the box mounting seat is provided with the avoidance portion, and in the state that the door body is closed, the pin joint of second connecting rod and third connecting rod is located the avoidance space that the avoidance portion formed.

Like this, under the state that the door body was closed, hinge subassembly was folding completely, and the pin joint of second connecting rod and third connecting rod is located the outside of box mount pad, can reduce the friction between hinge subassembly and the box mount pad, makes hinge subassembly's motion more smooth and easy.

The embodiment of the disclosure also provides a refrigerator, which comprises: the door opening and closing structure provided by the box body 10, the door body 20 and any one of the foregoing embodiments, wherein the door body 20 is rotationally connected with the box body 10, and the door opening and closing structure is disposed between the door body 20 and the box body 10.

The refrigerator provided in the embodiment of the disclosure is provided with the door closer 60 in the refrigerator body 10, and the door closer 60 is connected with the sliding part 520 of the first connecting rod 510 of the hinge assembly 50, in the process of opening the refrigerator door body 20, the sliding part 520 rotationally slides along the sliding groove 310 of the refrigerator body mounting seat 30 and is far away from the door closer 60, in the process of opening the door body 20 to a smaller included angle with the refrigerator body 10, the door closer 60 can generate a tensile force on the sliding part 520, and the direction of the tensile force is opposite to the moving direction of the sliding part 520, so that a certain damping effect is generated on the opening of the door body 20; when the refrigerator door 20 is closed to a small angle with the refrigerator body 10, the door closer 60 generates a pulling force in the same direction as the moving direction of the sliding portion 520, which facilitates the folding of the hinge assembly 50, thereby enabling the automatic closing of the door 20.

And the door closer is arranged outside the box body mounting seat, and compared with the door closer arranged inside the box body mounting seat, the door closer can generate larger acting force on the hinge assembly, and meanwhile, the thickness of the hinge assembly can be reduced, and correspondingly, the thickness of the mounting cross beam is also reduced, so that the occupation of the whole volume of the refrigerator can be reduced.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A switch door structure for refrigerator, includes box mount pad and door body connecting seat, its characterized in that still includes:

the hinge assembly is hinged with the box body mounting seat and the door body mounting seat and comprises a first connecting rod and a sliding part arranged on the first connecting rod, the sliding part can rotationally slide along a sliding groove arranged on the box body mounting seat, and the first end of the first connecting rod is hinged with the door body mounting seat;

the door closer is configured to be arranged on a refrigerator body of the refrigerator and is connected with the sliding part;

wherein, in the open and the in-process of closing of refrigerator door body, the slider slides along the spout, and the door closer can produce the pulling force to the slider.

2. The door opening and closing structure according to claim 1, wherein the door closer comprises:

the elastic piece is configured to be arranged on the refrigerator body of the refrigerator, one end of the elastic piece is connected with the sliding part, the elastic piece is stretched in the opening process of the refrigerator door body, and the elastic piece is retracted in the closing process of the refrigerator door body.

3. The door opening and closing structure according to claim 2, wherein the elastic member includes:

the cylinder is arranged on the refrigerator body of the refrigerator;

one end of the piston rod is connected with the cylinder;

the spacer is arranged between the piston rod and the sliding part, is connected with the other end of the piston rod and is hinged with the sliding part, and the spacer can transmit acting force of the piston rod to the sliding part to generate pulling force on the sliding part in the opening and closing process of the refrigerator door body.

4. A door opening and closing structure according to claim 3, wherein the cylinder is disposed in parallel with a front side of an upper or lower portion of the refrigerator body, and the spacer is hinged with the piston rod.

5. The door opening and closing structure according to claim 2, wherein the elastic member includes:

the cylinder is arranged on the refrigerator body of the refrigerator;

and one end of the piston rod is connected with the air cylinder, the other end of the piston rod is hinged with the sliding part, and the piston rod can generate tension to the sliding part in the opening and closing process of the refrigerator door body.

6. The door opening and closing structure according to claim 2, wherein the elastic member includes:

and one end of the spring assembly is connected with the refrigerator body of the refrigerator, and the other end of the spring assembly is hinged with the sliding part.

7. The door opening and closing structure according to claim 2, wherein the elastic member is provided at an upper portion and/or a lower portion of the cabinet of the refrigerator, and is adjacent to a front side of the cabinet.

8. The door opening and closing structure according to any one of claims 1 to 7, wherein the sliding portion includes:

the pin shaft penetrates through the first connecting rod along the thickness direction of the first connecting rod, extends to the outer side of the first connecting rod and is rotationally connected with the first connecting rod;

the shaft sleeve is connected with the first connecting rod and sleeved at the part of the pin shaft positioned at the outer side of the first connecting rod, is limited on the sliding groove and can rotationally slide relative to the sliding groove;

wherein, door closer is connected with the round pin axle.

9. The door opening and closing structure according to any one of claims 1 to 7, wherein the hinge assembly further comprises:

the second connecting rod is hinged with the first connecting rod in an X shape and comprises a third end and a fourth end, and the third end is hinged with the box body mounting seat;

and one end of the third connecting rod is hinged with the door body mounting seat, and the other end of the third connecting rod is hinged with the fourth end of the second connecting rod.

10. A refrigerator, comprising:

a case;

the door body is rotationally connected with the box body;

the door opening and closing structure for a refrigerator as claimed in any one of claims 1 to 9, disposed between the door body and the cabinet body.