CN117515999A - Refrigerating apparatus - Google Patents

Abstract

The application relates to the technical field of refrigerators and discloses refrigeration equipment, which comprises: the door comprises a shell, a main door body, an auxiliary door body and an upper hinge plate. The interior of the shell defines a storage cavity; the main door body is arranged at one side of the shell and is used for closing or opening the storage cavity, and the main door body is provided with a taking and placing opening; the auxiliary door body is arranged at the picking and placing opening and is used for closing or opening the picking and placing opening; the upper hinge plate is arranged on the upper side of the main door body and is connected with the upper side wall of the main door body; the upper hinge plate is characterized in that a first hinge shaft and a second hinge shaft are arranged on the lower side wall of the upper hinge plate, the first hinge shaft is rotationally connected with the shell, the second hinge shaft is rotationally connected with the auxiliary door body, and the main door body is located between the first hinge shaft and the second hinge shaft. In this application, can simplify the hinge connection structure between casing, main door body and the vice door body, reduce the material loss in the production process, reduce cost.

Description

Refrigerating apparatus

Technical Field

The application relates to the technical field of refrigerators, in particular to refrigeration equipment.

Background

At present, a single-layer door is adopted in a refrigerator, when the refrigerator is opened to take and put articles, the refrigerating space is directly subjected to heat exchange with the outside, so that the temperature in the refrigerator is rapidly increased, the energy consumption of the refrigerator is increased, most of door opening reasons are that small articles such as cold drinks are taken for users, excessive cold is leaked for the reason, and the experience of the users is low, so that the refrigerator with the door-in-door is widely applied.

There is a refrigerator in the related art, including a case and at least one door for opening and closing the case, at least one the door includes an outer door and an inner door rotatably fixed on the case, respectively, the inner door being located between the outer door and the case, characterized in that: the refrigerator is characterized in that the outer layer door is divided into at least two small doors which are arranged up and down, a cross beam is arranged at the joint of the inner layer door corresponding to the two adjacent small doors, the width of the cross beam is larger than the gap between the two small doors, a first hinge and a second hinge which are connected with the inner layer door and the refrigerator body are arranged on the refrigerator, a middle hinge which is connected with the outer layer door and the inner layer door is arranged on the inner layer door, and the middle hinge comprises an upper end shaft and a lower end shaft.

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 hinge connection structure of the door-in-door refrigerator is complex, two different hinge plates are required to be installed in the production process, the extra loss of materials is increased, and the cost is increased.

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 refrigeration equipment, which is used for simplifying a hinge connection structure among a shell, a main door body and an auxiliary door body, reducing material loss in the production process and lowering cost.

In some embodiments, a refrigeration device includes: the door comprises a shell, a main door body, an auxiliary door body and an upper hinge plate. The interior of the shell defines a storage cavity; the main door body is arranged at one side of the shell and is used for closing or opening the storage cavity, and the main door body is provided with a taking and placing opening; the auxiliary door body is arranged at the picking and placing opening and is used for closing or opening the picking and placing opening; the upper hinge plate is arranged on the upper side of the main door body and is connected with the upper side wall of the main door body; the upper hinge plate is characterized in that a first hinge shaft and a second hinge shaft are arranged on the lower side wall of the upper hinge plate, the first hinge shaft is rotationally connected with the shell, the second hinge shaft is rotationally connected with the auxiliary door body, and the main door body is located between the first hinge shaft and the second hinge shaft.

The refrigerating equipment provided by the embodiment of the disclosure can realize the following technical effects:

the main door body and the auxiliary door body can be assembled on the shell at the same time by arranging the upper hinge plate, the first hinge shaft and the second hinge shaft of the upper hinge plate are respectively and rotatably connected with the shell and the auxiliary door body, and the main door body is fixedly connected between the first hinge shaft and the second hinge shaft, so that the main door body and the auxiliary door body can be independently rotated and opened. The main door body and the auxiliary door body can be assembled simultaneously by arranging the upper hinge plate, so that the hinge connection structure among the shell, the main door body and the auxiliary door body is simplified, the material loss in the production process is reduced, and the cost is reduced. And the main door body and the auxiliary door body are simultaneously supported by the upper hinge plate, so that the stability of the main door body and the auxiliary door body is improved.

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

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 structural view of a refrigeration apparatus according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of an assembly of an upper hinge plate with a housing, a main door body, and a sub door body provided in an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a refrigeration appliance provided by an embodiment of the present disclosure;

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

FIG. 5 is a schematic view of the installation of a first hinge shaft and a second hinge shaft provided by an embodiment of the present disclosure;

FIG. 6 is a schematic view of an assembly of a middle hinge plate with a housing, a main door, and a sub door provided in an embodiment of the present disclosure;

FIG. 7 is a schematic structural view of a middle hinge plate provided by an embodiment of the present disclosure;

fig. 8 is a schematic view of an arrangement position of balls provided in an embodiment of the present disclosure.

Reference numerals:

100. a housing; 110. a storage cavity; 120. a first sleeve; 130. a mounting groove; 131. a support shaft; 132. a mounting gap; 133. a ball; 200. a main door body; 210. a taking and placing port; 300. an auxiliary door body; 310. a second sleeve; 320. a third sleeve; 400. an upper hinge plate; 410. a first hinge shaft; 420. a second hinge shaft; 430. a connecting seat; 500. a middle hinge plate; 510. a third hinge shaft; 520. and the shaft hole.

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 devices 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 device, 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; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, 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.

As shown in connection with fig. 1-8, embodiments of the present disclosure provide a refrigeration appliance including: the door comprises a housing 100, a main door body 200, a sub door body 300 and an upper hinge plate 400. The interior of the housing 100 defines a storage cavity 110; the main door body 200 is disposed at one side of the housing 100, and is used for closing or opening the storage cavity 110, and the main door body 200 has a pick-and-place opening 210; the auxiliary door 300 is disposed at the pick-and-place opening 210, and is used for closing or opening the pick-and-place opening 210; the upper hinge plate 400 is disposed at the upper side of the main door body 200 and connected with the upper sidewall of the main door body 200; the lower sidewall of the upper hinge plate 400 is provided with a first hinge shaft 410 and a second hinge shaft 420, the first hinge shaft 410 is rotatably connected with the housing 100, the second hinge shaft 420 is rotatably connected with the auxiliary door 300, and the main door 200 is located between the first hinge shaft 410 and the second hinge shaft 420.

With the refrigeration apparatus provided in the embodiment of the present disclosure, the main door body 200 and the auxiliary door body 300 may be simultaneously assembled on the housing 100 by providing the upper hinge plate 400, the first hinge shaft 410 and the second hinge shaft 420 of the upper hinge plate 400 are respectively rotatably connected with the housing 100 and the auxiliary door body 300, and the main door body 200 is fixedly connected between the first hinge shaft 410 and the second hinge shaft 420, so that the main door body 200 and the auxiliary door body 300 may be independently rotated and opened. The simultaneous assembly of the main door body 200 and the auxiliary door body 300 can be realized by arranging the upper hinge plate 400, so that the hinge connection structure among the shell 100, the main door body 200 and the auxiliary door body 300 is simplified, the material loss in the production process is reduced, and the cost is reduced. And the main door body 200 and the sub door body 300 are simultaneously supported by one upper hinge plate 400, thereby improving the stability of the main door body 200 and the sub door body 300.

Specifically, the refrigeration device is a refrigerator.

Alternatively, the housing 100 has a rectangular structure, the storage cavity 110 has a rectangular cavity structure defined in the housing 100, and the main door 200 and the auxiliary door 300 have rectangular plate structures. Like this, the casing 100 of cuboid shape is convenient for this refrigeration plant's place, and the article of different shapes can be deposited in the adaptation of rectangular storing chamber 110, has improved space utilization, and rectangular platelike structure's main door body 200 and vice door body 300 can cooperate with casing 100 better, seals storing chamber 110.

Alternatively, as shown in fig. 3, the access opening 210 is a rectangular opening formed on an outer side wall of the main door 200, and the access opening 210 is communicated with the storage cavity 110 when the main door 200 is closed. Thus, the rectangular taking and placing opening 210 is convenient for taking and placing objects, and when objects with smaller volumes need to be taken and placed from the storage cavity 110, the auxiliary door 300 can be selectively opened, and taking and placing are performed from the taking and placing opening 210, so that the experience of a user is improved.

Alternatively, the main door body 200 and the sub door body 300 have the same length and width. Thus, the shapes and the sizes of the main door body 200 and the auxiliary door body 300 are the same, when the storage cavity 110 is closed by the main door body 200 and the taking and placing opening 210 is closed by the auxiliary door body 300, the auxiliary door body 300 can cover the main door body 200, the heat preservation and sealing effects of the main door body 200 are improved, the leakage of cold is reduced, and the attractive degree is higher.

Optionally, a door seal is provided on a side wall of the main door body 200 facing the housing 100, and a door seal is also provided on a side wall of the sub door body 300 facing the main door body 200. In this way, when the main door body 200 and the sub door body 300 are closed, the door seal can be pressed, the sealing performance of the main door body 200 and the sub door body 300 can be improved, and the leakage of cold can be reduced.

Referring to fig. 2, in one embodiment, a first shaft housing 120 is disposed on an upper sidewall of the housing 100 corresponding to a position of the first hinge shaft 410, the first hinge shaft 410 is inserted into the first shaft housing 120, and the first hinge shaft 410 and the first shaft housing 120 can rotate relatively. In this way, by correspondingly arranging the first shaft housing 120 on the upper sidewall of the housing 100, the first hinge shaft 410 of the upper hinge plate 400 is inserted into the first shaft housing 120, and the first hinge shaft 410 is supported and limited by the first shaft housing 120, so that the first hinge shaft 410 can rotate in the first shaft housing 120 when the main door body 200 is rotated to be opened and closed, thereby improving the rotation stability of the main door body 200.

Alternatively, the depth of the first bushing 120 is smaller than the length of the first hinge shaft 410 in the vertical direction. In this way, when the first hinge shaft 410 is inserted into the first bushing 120, the upper region of the first hinge shaft 410 protrudes out of the first bushing 120, thereby forming a rotation gap between the lower sidewall of the upper hinge plate 400 and the upper sidewall of the housing 100, preventing friction from occurring between the lower sidewall of the upper hinge plate 400 and the upper sidewall of the housing 100, and affecting the rotation of the main door body 200.

Specifically, there is a difference of 5 mm between the length of the first hinge shaft 410 and the depth of the first bushing 120. In this way, a rotation gap of 5 mm is provided between the lower side wall of the upper hinge plate 400 and the upper side wall of the housing 100, facilitating the rotation of the upper hinge plate 400.

It will be appreciated that when the main door body 200 is rotated, the housing 100 and the first bushing 120 are in a stationary state, and the upper hinge plate 400 and the first hinge shaft 410 are rotated along with the main door body 200.

Optionally, a second shaft sleeve 310 is disposed on the upper sidewall of the auxiliary door body 300 corresponding to the second hinge shaft 420, the second hinge shaft 420 is inserted into the second shaft sleeve 310, and the second hinge shaft 420 and the second shaft sleeve 310 can rotate relatively. In this way, the second hinge shaft 420 is inserted into the second shaft bushing 310 by correspondingly arranging the second shaft bushing 310 on the upper sidewall of the sub-door body 300, and the second hinge shaft 420 is supported and limited by the second shaft bushing 310, so that the second hinge shaft 420 can rotate in the second shaft bushing 310 when the sub-door body 300 is turned on or turned off, thereby improving the rotation stability of the sub-door body 300.

Optionally, the depth of the second bushing 310 is less than the length of the second hinge shaft 420 in the vertical direction. In this way, when the second hinge shaft 420 is inserted into the second bushing 310, the upper region of the second hinge shaft 420 protrudes out of the second bushing 310, so that a rotation gap is formed between the lower sidewall of the upper hinge plate 400 and the upper sidewall of the sub-door 300, thereby preventing friction between the lower sidewall of the upper hinge plate 400 and the upper sidewall of the sub-door 300, and affecting the rotation of the sub-door 300.

Specifically, there is also a difference of 5 mm between the length of the second hinge shaft 420 and the depth of the second bushing 310. In this way, a rotation gap of 5 mm is provided between the lower sidewall of the upper hinge plate 400 and the upper sidewall of the housing 100, facilitating the rotation of the sub-door 300.

It can be appreciated that when the sub door 300 is rotated, the upper hinge plate 400, the main door 200, and the second hinge shaft 420 are in a stationary state, and the sub door 300 and the second bushing 310 are rotated with respect to the second hinge shaft 420.

In one embodiment, as shown in fig. 4, the diameter of the first hinge shaft 410 is greater than the diameter of the second hinge shaft 420. In this way, since the upper hinge plate 400 is rotatably coupled with the housing 100 through the first hinge shaft 410, i.e., the upper hinge plate 400 is supported by the first hinge shaft 410, the point of force of the upper hinge plate 400 is located at the first hinge shaft 410, and thus the diameter of the first hinge shaft 410 is set to be greater than that of the second hinge shaft 420, the strength of the first hinge shaft 410 is improved, and thus the stability of the upper hinge plate 400, the main door body 200, and the sub-door body 300 is improved.

Specifically, the diameter of the first hinge shaft 410 is twice that of the second hinge shaft 420.

In one embodiment, as shown in fig. 5, a distance between the first hinge shaft 410 and the main door body 200 is greater than a distance between the second hinge shaft 420 and the main door body 200 in a direction perpendicular to the main door body 200. In this way, since the force application point of the upper hinge plate 400 is at the first hinge shaft 410, the first hinge shaft 410 is coupled with the upper hinge plate 400 to support the main door body 200 and the sub door body 300, so that the distance between the first hinge shaft 410 and the main door body 200 is set to be greater than the distance between the second hinge shaft 420 and the main door body 200, the connection position of the second hinge shaft 420 and the housing 100 is relatively far from the main door body 200, and the support stability of the upper hinge plate 400 is increased, thereby improving the stability of the main door body 200 and the sub door body 300.

Alternatively, the distance between the first bushing 120 and the main door body 200 is greater than the distance between the second bushing 310 and the main door body 200 in a direction perpendicular to the main door body 200. Thus, since the first hinge shaft 410 is inserted into the first bushing 120 and the second hinge shaft 420 is inserted into the second bushing 310, in case that the distance between the first hinge shaft 410 and the main door body 200 is greater than the distance between the second hinge shaft 420 and the main door body 200, the distance between the first bushing 120 and the main door body 200 is also greater than the distance between the second bushing 310 and the main door body 200.

Specifically, the distance between the first hinge shaft 410 and the main door body 200 is twice the distance between the second hinge shaft 420 and the main door body 200.

Optionally, a protruding connection seat 430 is provided at a position of the lower sidewall of the upper hinge plate 400 corresponding to the main door body 200, and the lower sidewall of the upper hinge plate 400 is fixedly connected with the upper sidewall of the main door body 200 through the connection seat 430. In this way, since the length of the first hinge shaft 410 is greater than the depth of the first bushing 120 and the length of the second hinge shaft 420 is greater than the depth of the second bushing 310, rotation slits are formed between the lower side wall of the upper hinge plate 400 and the upper side wall of the housing 100, and between the lower side wall of the upper hinge plate 400 and the upper side wall of the sub-door body 300. The main door body 200 and the auxiliary door body 300 are rectangular plate structures with the same shape and size, so that the height difference is avoided between the assembled box body, the main door body 200 and the upper side wall of the auxiliary door body 300, and therefore, the lower side wall of the upper hinge plate 400 is correspondingly provided with the protruding connecting seat 430, and the lower side wall of the upper hinge plate 400 is fixedly connected with the upper side wall of the main door body 200 through the connecting seat 430, so that the assembled upper side walls of the main door body 200 and the auxiliary door body 300 can be flush.

Alternatively, the protruding height of the connection socket 430 is a difference between the length of the first hinge shaft 410 and the depth of the first bushing 120. In this way, the upper sidewall of the main door body 200 fixed by the connection base 430 can be flush with the upper sidewall of the sub door body 300.

It can be appreciated that the connection base 430 is fixedly connected to the upper side wall of the main door body 200 by welding or screw connection, which will not be described herein.

As shown in connection with fig. 6 and 7, in some embodiments, the refrigeration apparatus further includes: a middle hinge plate 500. The middle hinge plate 500 is disposed at the lower side of the main door body 200 and connected with the lower side wall of the main door body 200, the upper side wall of the middle hinge plate 500 is provided with a third hinge shaft 510 and a shaft hole 520, the shaft hole 520 is rotatably connected with the housing 100, the third hinge shaft 510 is rotatably connected with the sub door body 300, and the connection position of the main door body 200 and the middle hinge plate 500 is located between the third hinge shaft 510 and the shaft hole 520. In this way, the middle hinge plate 500 is provided at the lower side of the main door body 200 to support the lower side wall of the main door body 200, the third hinge shaft 510 and the shaft hole 520 are provided at the upper side wall of the middle hinge plate 500, the middle hinge plate 500 is rotatably connected to the housing 100 through the shaft hole 520, the middle hinge plate 500 is supported by the housing 100, the third hinge shaft 510 is rotatably connected to the lower side wall of the sub door body 300, and the lower side wall of the sub door body 300 is supported. The middle hinge plate 500 and the upper hinge plate 400 cooperate to support the main door body 200 and the sub door body 300 together, thereby further improving the stability of the main door body 200 and the sub door body 300.

Specifically, the axis of the third hinge shaft 510 is on the same vertical line as the axis of the second hinge shaft 420. In this way, since the upper hinge plate 400 is rotatably coupled to the upper side wall of the sub door body 300 through the second hinge shaft 420, the middle hinge plate 500 is rotatably coupled to the lower side wall of the sub door body 300 through the third hinge shaft 510, and the upper and lower side walls of the sub door body 300 are supported through the second hinge shaft 420 and the third hinge shaft 510. To prevent the sub door 300 from being offset when rotating, the axis of the third hinge shaft 510 and the axis of the second hinge shaft 420 are positioned on the same vertical line, so that the sub door 300 is rotated more stably.

Optionally, a third shaft housing 320 is provided at a lower sidewall of the sub-door body 300, and a third hinge shaft 510 is inserted into the third shaft housing 320 and is rotatable with respect to the third shaft housing 320. In this way, by correspondingly providing the third shaft sleeve 320 on the lower side wall of the sub-door 300, inserting the third hinge shaft 510 into the third shaft sleeve 320, and supporting and restricting the third hinge shaft 510 by the third shaft sleeve 320, the third hinge shaft 510 can rotate in the third shaft sleeve 320 when the sub-door 300 is turned on or turned off, and supporting the upper and lower side walls of the sub-door 300 by the cooperation of the second shaft sleeve 310 and the third shaft sleeve 320, the rotational stability of the sub-door 300 is further improved.

Optionally, a mounting groove 130 is provided on the side wall of the housing 100 at a position corresponding to the middle hinge plate 500, a supporting shaft 131 is provided in the mounting groove 130, a part of the middle hinge plate 500 extends into the mounting groove 130, and the supporting shaft 131 passes through the shaft hole 520. In this way, since the connection position of the middle hinge plate 500 and the housing 100 is located in the middle region of the side wall of the housing 100, the mounting groove 130 is provided at the position corresponding to the side wall of the housing 100, the portion of the middle hinge plate 500 extends into the mounting groove 130, the support shaft 131 in the mounting groove 130 passes through the shaft hole 520, and the support shaft 131 in the mounting groove 130 supports the middle hinge plate 500.

Specifically, the axis of the support shaft 131 is positioned on the same vertical line as the axis of the first hinge shaft 410. In this way, since the upper hinge plate 400 is supported by the first hinge shaft 410 and the middle hinge plate 500 is supported by the support shaft 131, in order to prevent the upper hinge plate 400 and the middle hinge plate 500 from being offset during rotation to cause abnormal rotation of the main door body 200, the axis of the support shaft 131 and the axis of the first hinge shaft 410 are positioned on the same vertical line, so that the main door body 200 can be rotated more stably.

Alternatively, the side wall of the mounting groove 130 facing the main door body 200 has a first opening, and the outer side wall of the mounting groove 130 adjacent to the first opening has a second opening. Thus, the first opening is provided to facilitate the insertion and installation of the middle hinge plate 500, and when the middle hinge plate 500 is opened by rotating the main door body 200, the middle hinge plate 500 can be rotated out of the installation groove 130 through the second opening, thereby preventing the outer wall of the installation groove 130 from blocking the rotation of the middle hinge plate 500. The mounting groove 130 also serves to limit the rotation range of the middle hinge plate 500, and prevent the rotation angle of the main door body 200 from being excessively large.

Alternatively, the lower end of the support shaft 131 is fixedly connected to the lower inner wall of the installation groove 130, and an installation gap 132 is provided between the upper end of the support shaft 131 and the upper inner wall of the installation groove 130. In this way, since the middle hinge plate 500 is supported by the support shaft 131, the lower end of the support shaft 131 is fixedly installed at the lower inner wall of the installation groove 130, and when the support shaft 131 is installed through the shaft hole 520 of the middle hinge plate 500, the middle hinge plate 500 can be supported by the lower inner wall of the installation groove 130, so that the stability of the middle hinge plate 500 is improved, thereby improving the stability of the main door body 200 and the sub door body 300. And set up the installation clearance 132 between the upper end of back shaft 131 and the upside inner wall of mounting groove 130, avoid back shaft 131 to block mounting groove 130, hinge plate 500 can pass installation clearance 132 in the part that stretches into in the mounting groove 130 to make the shaft hole 520 on the well hinge plate 500 can overlap smoothly and establish on back shaft 131, the installation of the well hinge plate 500 of being convenient for reduces the assembly degree of difficulty of main door body 200.

In some examples, when the main door body 200 and the sub door body 300 are assembled with the housing 100, the upper hinge plate 400 and the middle hinge plate 500 are first installed at the upper and lower sides of the main door body 200 and the sub door body 300, respectively, and then a portion of the middle hinge plate 500 is inserted into the installation slot 130, and at this time, the first hinge shaft 410 of the upper hinge plate 400 is aligned with the first shaft housing 120 in the vertical direction, and then the shaft hole 520 is sleeved on the support shaft 131, and since the axial direction of the support shaft 131 is on the same vertical line as the axial direction of the first hinge shaft 410, the first hinge shaft 410 is correspondingly inserted into the first shaft housing 120 in the case that the shaft hole 520 is sleeved into the support shaft 131, thereby completing the assembly of the main door body 200 and the sub door body 300.

In some embodiments, as shown in fig. 8, balls 133 are embedded in the lower inner wall of the mounting groove 130 corresponding to the outer circumference of the support shaft 131, the middle hinge plate 500 is located above the balls 133, and the lower side wall of the middle hinge plate 500 is slidably connected with the upper end of the balls 133. In this way, since the lower side wall of the middle hinge plate 500 is in contact with the lower side inner wall of the installation groove 130 in the portion extending into the installation groove 130, the lower side wall of the middle hinge plate 500 is rubbed with the lower side inner wall of the installation groove 130 when the main door body 200 rotates, thereby affecting smooth rotation of the main door body 200 as the middle hinge plate 500 rotates with the main door body 200. The balls 133 are fitted into the lower inner walls of the mounting grooves 130 corresponding to the outer circumference of the support shaft 131, and the lower side walls of the mounted middle hinge plate 500 contact with the upper ends of the balls 133, so that the middle hinge plate 500 is supported by the balls 133. Since the balls 133 may rotate, the lower side wall of the middle hinge plate 500 slides on the balls 133 while the middle hinge plate 500 rotates along with the main door body 200, and the balls 133 rotate themselves, thereby reducing friction of the lower side wall of the middle hinge plate 500, enabling smooth rotation of the middle hinge plate 500, and improving rotation stability of the main door body 200.

Alternatively, a plurality of balls 133 are provided, and the plurality of balls 133 are uniformly distributed on the lower inner wall of the mounting groove 130 corresponding to the outer circumference of the support shaft 131. In this way, the plurality of balls 133 have a surrounding effect on the supporting shaft 131, and the plurality of balls 133 simultaneously support the lower side wall of the middle hinge plate 500, so that the plurality of balls 133 rotate when the middle hinge plate 500 rotates, thereby further reducing friction of the lower side wall of the middle hinge plate 500.

Optionally, a plurality of ball grooves are respectively disposed on the lower inner wall of the mounting groove 130 corresponding to the outer periphery of the support shaft 131 corresponding to the plurality of balls 133, each ball 133 is correspondingly embedded in one ball groove, and the balls 133 disposed in each ball groove can rotate in the ball groove. In this way, by fitting the plurality of balls 133 into the corresponding ball grooves, when the middle hinge plate 500 rotates, the plurality of balls 133 rotate in the corresponding ball grooves, thereby reducing friction on the lower side wall of the middle hinge plate 500 and reducing the rotation resistance of the middle hinge plate 500.

Specifically, the lower half portion of the ball 133 is fitted in the ball groove, and the upper half portion protrudes from the lower inner wall of the mounting groove 130. In this way, the balls 133 are not easily separated from the ball grooves, and the lower side wall of the center hinge plate 500 can be supported better by the balls 133.

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 refrigeration appliance, comprising:

a housing (100) defining a storage cavity (110) therein;

the main door body (200) is arranged at one side of the shell (100) and is used for closing or opening the storage cavity (110), and a taking and placing opening (210) is formed in the main door body (200);

the auxiliary door body (300) is arranged at the pick-and-place opening (210) and is used for closing or opening the pick-and-place opening (210);

the upper hinge plate (400) is arranged on the upper side of the main door body (200) and is connected with the upper side wall of the main door body (200);

the lower side wall of the upper hinge plate (400) is provided with a first hinge shaft (410) and a second hinge shaft (420), the first hinge shaft (410) is rotatably connected with the shell (100), the second hinge shaft (420) is rotatably connected with the auxiliary door body (300), and the main door body (200) is positioned between the first hinge shaft (410) and the second hinge shaft (420).

2. The refrigeration appliance according to claim 1, wherein a first bushing (120) is provided on an upper side wall of the housing (100) at a position corresponding to the first hinge shaft (410), the first hinge shaft (410) is inserted into the first bushing (120), and the first hinge shaft (410) and the first bushing (120) are rotatable relative to each other.

3. The refrigeration appliance according to claim 1, wherein a second shaft (310) is disposed on an upper side wall of the auxiliary door body (300) at a position corresponding to the second hinge shaft (420), the second hinge shaft (420) is inserted into the second shaft (310), and the second hinge shaft (420) and the second shaft (310) are rotatable relative to each other.

4. A refrigerating device according to claim 1, characterized in that the diameter of the first hinge axis (410) is greater than the diameter of the second hinge axis (420).

5. The refrigeration appliance of claim 1, wherein a distance between the first hinge axis (410) and the main door body (200) is greater than a distance between the second hinge axis (420) and the main door body (200) in a direction perpendicular to the main door body (200).

6. The refrigeration appliance according to claim 1, wherein a protruding connection seat (430) is provided at a position of the lower side wall of the upper hinge plate (400) corresponding to the main door body (200), and the lower side wall of the upper hinge plate (400) is fixedly connected with the upper side wall of the main door body (200) through the connection seat (430).

7. The refrigeration appliance of any one of claims 1 to 6 further comprising:

the middle hinge plate (500) is arranged on the lower side of the main door body (200) and is connected with the lower side wall of the main door body (200), a third hinge shaft (510) and a shaft hole (520) are arranged on the upper side wall of the middle hinge plate (500), the shaft hole (520) is rotationally connected with the shell (100), the third hinge shaft (510) is rotationally connected with the auxiliary door body (300), and the connection position of the main door body (200) and the middle hinge plate (500) is located between the third hinge shaft (510) and the shaft hole (520).

8. The refrigeration appliance according to claim 7, wherein a mounting groove (130) is formed in a position, corresponding to the middle hinge plate (500), of the side wall of the housing (100), a supporting shaft (131) is arranged in the mounting groove (130), a part of the middle hinge plate (500) extends into the mounting groove (130), and the supporting shaft (131) is arranged through the shaft hole (520).

9. The refrigeration appliance according to claim 8, wherein the lower end of the support shaft (131) is fixedly connected with the lower side inner wall of the installation groove (130), and an installation gap (132) is provided between the upper end of the support shaft (131) and the upper side inner wall of the installation groove (130).

10. The refrigeration appliance according to claim 8, wherein balls (133) are embedded in the inner wall of the lower side of the mounting groove (130) corresponding to the outer periphery of the support shaft (131), the middle hinge plate (500) is located above the balls (133), and the lower side wall of the middle hinge plate (500) is slidably connected with the upper ends of the balls (133).