CN219528733U - Refrigerator and hinge assembly thereof - Google Patents

Abstract

The utility model provides a refrigerator and a hinge assembly thereof, wherein the hinge assembly comprises: an upper stopper sleeve fixed to a door body of the refrigerator; a lower stopper sleeve fixed to a case of the refrigerator for supporting the upper stopper sleeve; the hinge shaft penetrates through the upper stop sleeve and the lower stop sleeve, the lower end of the hinge shaft is fixedly connected with the box body, and the upper end of the hinge shaft is rotatably connected with the door body; the second closing surface, the second gradual change surface and the second hovering surface of the lower edge of the upper stop sleeve are respectively correspondingly supported on the first closing surface, the first gradual change surface and the first hovering surface of the upper edge of the lower stop sleeve; in the process that the door body is opened by a preset angle, the upper stop sleeve rotates along with the door body, and the second closing surface smoothly moves from the first closing surface to the first hovering surface through the first gradual change surface. The utility model has the advantages of having the functions of hovering and stopping, having simple structure and better reliability and stability, being beneficial to reducing the complexity of the process and improving the assembly efficiency.

Description

Refrigerator and hinge assembly thereof

Technical Field

The utility model relates to the technical field of hinge structures, in particular to a refrigerator and a hinge assembly thereof.

Background

At present, the hinges on the market are usually riveted by a hinge plate and a hinge shaft, the hinge plate and the hinge shaft have few hovering functions, and the stop parts are basically separate parts and are assembled on the lower decorative strip of the door body through screws so as to form a stop function by matching with the hinges. The whole component part of the structure has the advantages of large quantity, large number of steps, complex process and low assembly efficiency, and therefore, the structure needs to be improved.

Disclosure of Invention

It is an object of a first aspect of the present utility model to provide a hinge assembly with a hover function.

A further object of the first aspect of the utility model is to provide the hinge assembly with a stop function.

An object of a second aspect of the present utility model is to provide a refrigerator having the hinge assembly as described above.

In particular, according to a first aspect of the present utility model, there is provided a hinge assembly of a refrigerator, comprising:

an upper stopper sleeve fixed to a door body of the refrigerator;

a lower stopper sleeve fixed to a case of the refrigerator for supporting the upper stopper sleeve; and

the hinge shaft penetrates through the upper stop sleeve and the lower stop sleeve, the lower end of the hinge shaft is fixedly connected with the box body, and the upper end of the hinge shaft is rotatably connected with the door body;

the upper edge of the lower stop sleeve is provided with a first closing surface, a first gradual change surface and a first hovering surface which are sequentially connected along the peripheral outline of the lower stop sleeve, and the first hovering surface is higher than the first closing surface;

the lower edge of the upper stop sleeve is provided with a second closing surface, a second gradual change surface and a second hovering surface which are sequentially connected along the peripheral outline of the upper stop sleeve, and the second closing surface, the second gradual change surface and the second hovering surface are correspondingly supported on the first closing surface, the first gradual change surface and the first hovering surface respectively;

the upper stop sleeve and the lower stop sleeve are configured to rotate along with the door body in the process that the door body is opened by a preset angle, so that the second closing surface smoothly moves from the first closing surface to the first hovering surface through the first gradual change surface.

Optionally, one side of the first closing surface far away from the first gradual change surface is provided with a first clamping surface, one side of the second closing surface far away from the second gradual change surface is provided with a second clamping surface, and when the door body is in a closed state, the second clamping surface is abutted with the first clamping surface from one side of the first closing surface.

Optionally, a first stop surface is arranged on one side of the first hovering surface far away from the first gradual change surface, a second stop surface is formed between the second gradual change surface and the second closing surface, and when the door body is opened by a preset angle, the second stop surface is abutted against the second stop surface from one side of the first hovering surface.

Optionally, a side of the second gradual change surface adjacent to the second closing surface gradually draws upward, so that a second stop surface is formed between the second closing surface and the second gradual change surface due to a height difference.

Optionally, a first flat end surface is arranged on one side, far away from the first gradual change surface, of the first closing surface, the first flat end surface is higher than the first hovering surface, a second flat end surface is arranged on one side, far away from the second gradual change surface, of the second closing surface, the second flat end surface is higher than the second hovering surface, and when the door body is in a closed state, the second flat end surface is supported on the first flat end surface.

Optionally, a first abdicating surface extending downwards gradually towards the first stopping surface is arranged between the first flat end surface and the first stopping surface, a second abdicating surface extending downwards gradually towards the second closing surface is arranged between the second flat end surface and the second closing surface, and the highest point of the second abdicating surface is located above the lowest point of the first abdicating surface.

Optionally, the preset angle is 90 ° to 150 °.

Optionally, the central axes of the upper stop sleeve, the lower stop sleeve and the hinge shaft are collinear.

Optionally, the hinge assembly further comprises:

one end of the hinge plate is connected with the bottom of the box body, the other end of the hinge plate extends to the front side of the box body, and the hinge shaft and the lower stop sleeve are fixed on the hinge plate; and/or

The connecting plate is arranged at the bottom of the door body, extends along the transverse direction of the door body, and the upper stop sleeve is fixed on the connecting plate.

According to a second aspect of the present utility model, there is provided a refrigerator comprising:

a box body, in which a storage compartment is defined;

the door body is arranged at the front side of the box body; and

any one of the hinge components is arranged at the lower end of the door body, and the door body is pivotally connected with the box body through the hinge component so as to open and close the storage compartment.

The hinge shaft of the hinge assembly is penetrated in the upper stop sleeve and the lower stop sleeve, and the door body can rotate relative to the box body around the hinge shaft. In the opening process of the door body, the door body drives the second closing surface of the upper stop sleeve to smoothly move from the first closing surface of the lower stop sleeve to the first hovering surface through the first gradual change surface, so that hovering of the door body after the door body is opened by a preset angle is realized, and the door body is lifted to a certain height at the moment. In the closing process of the door body, the door body can drive the second closing surface of the upper stop sleeve to slide back to the first closing surface from the first hovering surface of the lower stop sleeve by means of self gravity, so that the door body can be closed more conveniently and more easily, the door body is abutted to the front side of the box body, and good sealing performance of the storage compartment is guaranteed.

Further, according to the hinge assembly disclosed by the utility model, when the door body is opened by a preset angle, the second stop surface can be abutted against the second stop surface from one side of the first hovering surface, so that the door body can be prevented from being excessively opened, and the problem that the door body is difficult to close due to collision between the door body and the box body is avoided. Compared with the method for stopping the door body by adopting the independent stopping component, the structure for stopping the door body by the first stopping surface and the second stopping surface is simpler, has higher reliability and stability, is beneficial to reducing the process complexity and improves the assembly efficiency.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic front view according to one embodiment of the utility model;

FIG. 2 is a schematic exploded view of a hinge assembly according to one embodiment of the present utility model;

FIG. 3 is a schematic front view of a hinge assembly with a door body closed according to one embodiment of the present utility model;

FIG. 4 is a schematic left side view of the hinge assembly with the door body closed in accordance with one embodiment of the present utility model;

FIG. 5 is a schematic front view of a hinge assembly with a door body open according to one embodiment of the present utility model;

FIG. 6 is a schematic left side view of the hinge assembly with the door body open in accordance with one embodiment of the present utility model;

fig. 7 is a schematic top view of a hinge assembly when a door body is opened according to one embodiment of the present utility model.

Reference numerals: 10. a refrigerator; 110. a case; 120. a door body; 200. a hinge assembly; 210. an upper stop sleeve; 211. a second closure surface; 212. a second progressive surface; 213. a second hover surface; 214. a second clamping surface; 215. a second stop surface; 216. a second planar end face; 217. a second yielding surface; 220. a lower stop sleeve; 221. a first closure surface; 222. a first progressive surface; 223. a first hover surface; 224. a first clamping surface; 225. a first stop surface; 226. a first planar end surface; 227. a first yielding surface; 230. a hinge shaft; 240. a hinge plate; 250. and (5) connecting a plate.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The present utility model provides a refrigerator 10, fig. 1 is a schematic front view of the refrigerator 10 according to an embodiment of the present utility model, referring to fig. 1, the refrigerator 10 may be a single-side door-opened refrigerator 10, the refrigerator 10 includes a cabinet 110 and a door 120, a storage compartment is defined inside the cabinet 110, and the door 120 is disposed at a front side of the cabinet 110 for opening and closing the storage compartment. To achieve the pivotal movement of the door 120, the upper and lower ends of the door 120 are connected to the case 110 by hinge assemblies 200, respectively. The hinge assembly 200 according to the embodiment of the present utility model is a lower hinge assembly 200 installed at the lower end of the door 120. Of course, the hinge assembly 200 of the present utility model is equally applicable to a refrigerator 10 having a double-sided door.

Fig. 2 is a schematic exploded view of a hinge assembly 200 according to an embodiment of the present utility model, fig. 3 is a schematic front view of the hinge assembly 200 when the door 120 is closed according to an embodiment of the present utility model, fig. 4 is a schematic left view of the hinge assembly 200 when the door 120 is closed according to an embodiment of the present utility model, fig. 5 is a schematic front view of the hinge assembly 200 when the door 120 is open according to an embodiment of the present utility model, and fig. 6 is a schematic left view of the hinge assembly 200 when the door 120 is open according to an embodiment of the present utility model.

Referring to fig. 2 to 6, the hinge assembly 200 may include an upper stopper housing 210, a lower stopper housing 220, and a hinge shaft 230, wherein the upper stopper housing 210 is fixed to the door 120 of the refrigerator 10, the lower stopper housing 220 is fixed to the case 110 of the refrigerator 10 for supporting the upper stopper housing 210, the hinge shaft 230 is penetrated inside the upper and lower stopper housings 210 and 220, the lower end of the hinge shaft 230 is fixedly connected with the case 110, and the upper end of the hinge shaft 230 is rotatably connected with the door 120.

The upper edge of the lower stop sleeve 220 is provided with a first closing surface 221, a first gradual surface 222 and a first hovering surface 223, wherein the first closing surface 221 and the first hovering surface 223 may be planar, the first hovering surface 223 is higher than the first closing surface 221, the first gradual surface 222 may be inclined, and two sides of the first gradual surface 222 extend to the first closing surface 221 and the first hovering surface 223 respectively, so that the first closing surface 221, the first gradual surface 222 and the first hovering surface 223 are sequentially connected along the peripheral outline of the lower stop sleeve 220.

The lower edge of the upper stop sleeve 210 is provided with a second closing surface 211, a second gradual change surface 212 and a second hovering surface 213, wherein the second closing surface 211 and the second hovering surface 213 may be planes, the second hovering surface 213 is higher than the second closing surface 211, the second gradual change surface 212 may be inclined planes, and two sides of the second gradual change surface 212 extend to the second closing surface 211 and the second hovering surface 213 respectively, so that the second closing surface 211, the second gradual change surface 212 and the second hovering surface 213 are sequentially connected along the peripheral outline of the upper stop sleeve 210.

The second closing surface 211 is adapted to the shape of the first closing surface 221, the second tapering surface 212 is adapted to the shape of the first tapering surface 222, and the second hovering surface 213 is adapted to the shape of the first hovering surface 223. When the door 120 is in the closed state, the second closing surface 211, the second gradation surface 212, and the second hover surface 213 are respectively supported on the first closing surface 221, the first gradation surface 222, and the first hover surface 223, respectively.

By applying the technical scheme of the utility model, in the opening process of the door body 120, the door body 120 can drive the second closing surface 211 of the upper stop sleeve 210 to smoothly move from the first closing surface 221 of the lower stop sleeve 220 to the first hovering surface 223 through the first gradual change surface 222, so that hovering of the door body 120 after being opened by a preset angle is realized, and at the moment, the door body 120 is lifted by a certain height. In the closing process of the door 120, the door 120 can drive the second closing surface 211 of the upper stop sleeve 210 to slide back to the first closing surface 221 from the first hovering surface 223 of the lower stop sleeve 220 by means of self gravity, so that the door 120 can be closed more conveniently and labor-saving, and the door 120 abuts against the front side of the box 110 at this time, so that good sealing performance of the storage compartment is ensured.

The side of the first closing surface 221 away from the first gradual surface 222 may be provided with a first detent surface 224, and the side of the second closing surface 211 away from the second gradual surface 212 may be provided with a second detent surface 214. The first latching surface 224 and the second latching surface 214 may be vertical surfaces, and when the door 120 is in the closed state, the second latching surface 214 abuts against the first latching surface 224 from one side of the first closing surface 221. Through the cooperation of the first clamping surface 224 and the second clamping surface 214, the door 120 can be limited to rotate towards the box 110 after the door 120 is closed in place, so that the door 120 is prevented from excessively extruding the box 110, and deformation of the box 110 or the door 120 is avoided.

The side of the first hover surface 223 remote from the first gradual surface 222 may be provided with a first stop surface 225 and a second stop surface 215 may be formed between the second gradual surface 212 and the second closure surface 211. The first stop surface 225 and the second stop surface 215 may also be vertical surfaces, and after the door 120 is opened by a predetermined angle, the second stop surface 215 abuts against the second stop surface 215 from one side of the first hovering surface 223. Thus, the door 120 is prevented from being excessively opened, and the problem that the door 120 is difficult to close due to collision between the door 120 and the box 110 is avoided.

In an alternative embodiment of the present utility model, the side of the second gradual surface 212 adjacent to the second closing surface 211 may gradually be folded upwards, such that the second closing surface 211 and the second gradual surface 212 form the second stop surface 215 due to the height difference.

The side of the first closing surface 221 away from the first gradual surface 222 may be provided with a first flat end surface 226, the first flat end surface 226 being a plane that is higher than the first hovering surface 223, and the first clamping surface 224 may be formed by a height difference generated between the first closing surface 221 and the first flat end surface 226.

The side of the second closing surface 211 away from the second gradual surface 212 may be provided with a second flat end surface 216, the second flat end surface 216 being a plane that is higher than the second hovering surface 213, the second flat end surface 216 being adapted to the shape of the first flat end surface 226, the second flat end surface 216 being supported on the first flat end surface 226 when the door 120 is in the closed state.

That is, when the door 120 is in the closed state, not only the second closing surface 211, the second gradual change surface 212 and the second hovering surface 213 are correspondingly supported on the first closing surface 221, the first gradual change surface 222 and the first hovering surface 223, but also the second flat end surface 216 is correspondingly supported on the first flat end surface 226, so that the lower stop sleeve 220 can stably support the upper stop sleeve 210, thereby improving the connection stability between the door 120 and the box 110 and preventing the door 120 from sinking.

A first yielding surface 227 extending gradually and obliquely downwards towards the first stop surface 225 may be arranged between the first flat end surface 226 and the first stop surface 225, a second yielding surface 217 extending gradually and obliquely downwards towards the second closing surface 211 is arranged between the second flat end surface 216 and the second closing surface 211, and the highest point of the second yielding surface 217 is located above the lowest point of the first yielding surface 227. In this way, during the opening process of the door 120, the second yielding surface 217 and the first yielding surface 227 are arranged in a vertically staggered manner, so that the upper stop sleeve 210 can be allowed to rotate synchronously with the door 120.

By designing the arc-shaped lengths of the first closing surface 221, the first gradual change surface 222 and the first hover surface 223, when the second closing surface 211 is completely slid onto the first hover surface 223, the preset angle of opening the door 120 is 90 ° to 150 °. Fig. 7 is a schematic top view of the hinge assembly 200 when the door 120 is opened according to an embodiment of the present utility model, wherein the preset angle is preferably 135 °, so as to satisfy the opening requirement of the door 120 and prevent the door 120 from colliding with the case 110 after being opened.

The central axes of the upper stop sleeve 210, the lower stop sleeve 220, and the hinge shaft 230 may be collinear. In this way, during the opening and closing process of the door 120, the relative rotation of the upper stop sleeve 210 and the lower stop sleeve 220 can be smoother, which can avoid the phenomenon that the door 120 is blocked, and is beneficial to improving the smoothness of opening and closing the door 120.

In the embodiment of the present utility model shown in the drawings, the first closing surface 221, the first transition surface 222, the first hover surface 223, the first relief surface 227, and the first planar end surface 226 encircle one revolution in a counterclockwise direction, forming the upper edge of the lower stop sleeve 220. The second closing surface 211, the second transition surface 212, the second hover surface 213, the second relief surface 217, and the second planar end surface 216 encircle one revolution in a counter-clockwise direction forming the lower edge of the upper stop collar 210.

The hinge assembly 200 may further include a hinge plate 240, one end of the hinge plate 240 is connected to the bottom of the case 110, the other end extends to the front side of the case 110, and the hinge shaft 230 and the lower stopper 220 are fixed to the hinge plate 240. Preferably, the hinge shaft 230, the lower stopper 220 and the hinge plate 240 may be integrally formed. The hinge plate 240 may be coupled to the bottom of the case 110 by two screws spaced front and rear.

The hinge assembly 200 may further include a hinge plate 240, the connecting plate 250 is disposed at the bottom of the door body 120 and may extend along the lateral direction of the door body 120, the upper end of the upper stop sleeve 210 is fixed at one end of the connecting plate 250, the other end of the connecting plate 250 may be connected with the bottom of the door body 120 through two screws arranged at left and right intervals, and of course, the upper stop sleeve 210 may also be integrally formed with the connecting plate 250, and the integrally formed structure is relatively stable, and the connection part is not easy to break. The connection plate 250 is provided with a connection hole for the hinge shaft 230 to pass upward and then be rotatably connected with the door 120.

It should be noted that, the opening and closing of the door 120 may also be controlled electrically, and those skilled in the art may implement multi-angle hovering of the door 120 by providing a plurality of hovering surfaces without departing from the spirit and essence of the present utility model, which falls within the scope of the present utility model.

According to any one of the optional embodiments or the combination of multiple optional embodiments, the following beneficial effects can be achieved according to the embodiment of the utility model:

in the hinge assembly 200 according to the embodiment of the present utility model, the hinge shaft 230 is penetrated through the inside of the upper and lower stopper cases 210 and 220, and the door 120 is rotatable with respect to the case 110 about the hinge shaft 230. In the opening process of the door body 120, the door body 120 drives the second closing surface 211 of the upper stop sleeve 210 to smoothly move from the first closing surface 221 of the lower stop sleeve 220 to the first hovering surface 223 through the first gradual change surface 222, so that hovering of the door body 120 after being opened by a preset angle is realized, and at this time, the door body 120 is lifted by a certain height. In the closing process of the door 120, the door 120 can drive the second closing surface 211 of the upper stop sleeve 210 to slide back to the first closing surface 221 from the first hovering surface 223 of the lower stop sleeve 220 by means of self gravity, so that the door 120 can be closed more conveniently and labor-saving, and the door 120 abuts against the front side of the box 110 at this time, so that good sealing performance of the storage compartment is ensured.

Further, in the hinge assembly 200 according to the embodiment of the present utility model, when the door 120 is opened by a preset angle, the second stop surface 215 can abut against the second stop surface 215 from one side of the first hover surface 223, so that the door 120 is prevented from being excessively opened, and the problem that the door 120 is difficult to close due to collision between the door 120 and the box 110 is avoided. Compared with the method for stopping the door 120 by adopting a separate stopping component, the method for stopping the door 120 by the first stopping surface 225 and the second stopping surface 215 has the advantages of simpler structure, higher reliability and stability, and is beneficial to reducing the process complexity and improving the assembly efficiency.

It should be understood by those skilled in the art that, unless specifically stated otherwise, terms used to indicate orientation or positional relationship in the embodiments of the present utility model are based on the actual use state of the refrigerator 10, and these terms are merely for convenience in describing and understanding the technical solution of the present utility model, and do not indicate or imply that the device or component to be referred to must have a specific orientation, and thus should not be construed as limiting the present utility model.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present utility model as the case may be.

In the description of the present embodiment, a description referring to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A hinge assembly of a refrigerator, comprising:

an upper stopper cover fixed to a door body of the refrigerator;

a lower stopper sleeve fixed to a case of the refrigerator for supporting the upper stopper sleeve; and

the hinge shaft is penetrated in the upper stop sleeve and the lower stop sleeve, the lower end of the hinge shaft is fixedly connected with the box body, and the upper end of the hinge shaft is rotationally connected with the door body;

the upper edge of the lower stop sleeve is provided with a first closing surface, a first gradual change surface and a first hovering surface which are sequentially connected along the peripheral outline of the lower stop sleeve, and the first hovering surface is higher than the first closing surface;

the lower edge of the upper stop sleeve is provided with a second closing surface, a second gradual change surface and a second hovering surface which are sequentially connected along the outline of the upper stop sleeve, and the second closing surface, the second gradual change surface and the second hovering surface are correspondingly supported on the first closing surface, the first gradual change surface and the first hovering surface respectively;

the upper stop sleeve and the lower stop sleeve are configured to rotate along with the door body in the process that the door body is opened by a preset angle, so that the second closing surface smoothly moves from the first closing surface to the first hovering surface through the first gradual change surface.

2. The hinge assembly of claim 1 wherein the hinge assembly comprises a hinge assembly,

the door comprises a door body and is characterized in that a first clamping surface is arranged on one side, far away from the first gradual change surface, of the first closing surface, a second clamping surface is arranged on one side, far away from the second gradual change surface, of the second closing surface, and when the door body is in a closed state, the second clamping surface is abutted to the first clamping surface from one side of the first closing surface.

3. The hinge assembly of claim 1 wherein the hinge assembly comprises a hinge assembly,

the side, far away from the first gradual change surface, of the first hovering surface is provided with a first stop surface, a second stop surface is formed between the second gradual change surface and the second closing surface, and when the door body is opened by a preset angle, the second stop surface is abutted to the second stop surface from one side of the first hovering surface.

4. The hinge assembly of claim 3 wherein the hinge assembly comprises a hinge assembly,

one side of the second gradual change surface adjacent to the second closing surface gradually folds upwards, so that the second closing surface and the second gradual change surface form the second stop surface due to the height difference.

5. The hinge assembly of claim 3 wherein the hinge assembly comprises a hinge assembly,

the side of the first closing surface, which is far away from the first gradual change surface, is provided with a first flat end surface, the first flat end surface is higher than the first hovering surface, the side of the second closing surface, which is far away from the second gradual change surface, is provided with a second flat end surface, the second flat end surface is higher than the second hovering surface, and when the door body is in a closed state, the second flat end surface is supported on the first flat end surface.

6. The hinge assembly of claim 5 wherein the hinge assembly comprises a hinge assembly,

the first flat end face and the first stop face are provided with a first abdication face which gradually inclines downwards to extend towards the first stop face, the second flat end face and the second closed face are provided with a second abdication face which gradually inclines downwards to extend towards the second closed face, and the highest point of the second abdication face is located above the lowest point of the first abdication face.

7. The hinge assembly of claim 1 wherein the hinge assembly comprises a hinge assembly,

the preset angle is 90-150 degrees.

8. The hinge assembly of claim 1 wherein the hinge assembly comprises a hinge assembly,

the central axes of the upper stop sleeve, the lower stop sleeve and the hinge shaft are collinear.

9. The hinge assembly of claim 1, further comprising:

the hinge plate is connected with the bottom of the box body at one end, the other end of the hinge plate extends to the front side of the box body, and the hinge shaft and the lower stop sleeve are both fixed on the hinge plate; and/or

The connecting plate is arranged at the bottom of the door body, extends along the transverse direction of the door body, and the upper stop sleeve is fixed on the connecting plate.

10. A refrigerator, comprising:

a box body, in which a storage compartment is defined;

the door body is arranged at the front side of the box body; and

the hinge assembly as claimed in any one of claims 1 to 9, provided at a lower end of the door body, the door body being pivotably connected to the case body through the hinge assembly to open and close the storage compartment.