Hinge assembly for refrigerating and freezing equipment and refrigerating and freezing equipment

Abstract

The utility model relates to the technical field of refrigerating and freezing equipment, and discloses a hinge assembly for refrigerating and freezing equipment and the refrigerating and freezing equipment. The hinge assembly for the refrigerating and freezing equipment comprises a hinge base plate and a hinge shaft connected with the hinge base plate; the hinge shaft sleeve is connected with the hinge base plate and arranged on the outer side of the hinge shaft in a sleeving mode, the door body shaft sleeve is arranged on the outer side of the hinge shaft in a sleeving mode and connected with the hinge shaft sleeve, and the door body shaft sleeve can rotate relative to the hinge shaft and the hinge shaft sleeve; one of a spiral boss and a spiral groove which are matched with each other is arranged on the side wall, facing the hinge shaft sleeve, of the door body shaft sleeve, and the other one of the spiral boss and the spiral groove which are matched with each other is arranged on the side wall, facing the door body shaft sleeve, of the hinge shaft sleeve; and under the condition that the door body is arranged on the refrigerator body in a closed mode, the spiral boss is located in the spiral groove so as to limit rotation of the door body. And after the door is closed to a certain angle by a user, the door body can be automatically closed, and the door body is limited after being closed, so that the sealing performance of the door body to the box body is improved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration and freezing equipment, for example, to a hinge assembly for refrigeration and freezing equipment and the refrigeration and freezing equipment. Background Art

[0002] As we all know, frost and condensation have always been a common pain point in the refrigeration and freezing equipment industry. Such equipment, including but not limited to refrigerators, freezers, refrigerators, and wine cabinets, may fail to control the humidity and temperature of the air inside the cabinet due to poor sealing performance. This problem has become particularly evident as users' expectations for refrigeration performance continue to increase. Poor sealing may allow warm and humid air from the outside to penetrate into the cabinet, forming frost or condensation after contact with cold air.

[0003] At present, an automatic door closing device is disclosed in the relevant technology, which includes an outer shell installed on the door body and a hinge fixing plate installed on the box body. The outer shell is provided with a hook capable of generating elastic deformation at the installation position corresponding to the hinge fixing plate, and the hook can be engaged with the buckle provided on the hinge fixing plate to improve the sealing of the door body on the box body.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the related art, when closing the door, a force needs to be applied to the hook through the door body so that the hook is deformed and engaged with the buckle, so a large closing force needs to be applied when closing the door. However, this behavior of closing the door body with great force not only increases the inconvenience of use, but also excessive closing force may cause vibration of the entire box, reduce the stability and durability of the device, and reduce the user experience.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a hinge assembly for refrigeration and freezing equipment and refrigeration and freezing equipment, so as to achieve effective sealing of the door body without applying additional force when closing the door, thereby reducing the problems of frost and condensation, improving user experience, and enhancing the overall performance of the refrigeration and freezing equipment.

[0009] According to the first embodiment provided in the present application, a hinge assembly for refrigerating and freezing equipment is provided, and the hinge assembly for refrigerating and freezing equipment includes: a hinge base plate, which is used to connect with the box body of the refrigerating and freezing equipment; a hinge shaft, which is connected to the hinge base plate; a hinge sleeve, which is connected to the hinge base plate and is sleeved on the outside of the hinge shaft; a door body sleeve, which is used to connect with the door body of the refrigerating and freezing equipment, is sleeved on the outside of the hinge shaft and is connected to the hinge sleeve, and the door body sleeve can rotate relative to the hinge shaft and the hinge sleeve; the side wall of the door body sleeve facing the hinge sleeve is provided with one of the matching spiral bosses and spiral grooves, and the side wall of the hinge sleeve facing the door body sleeve is provided with the other of the matching spiral bosses and spiral grooves; wherein, when the door body is closed on the box body, the spiral boss is located in the spiral groove to limit the rotation of the door body.

[0010] In some optional embodiments, the spiral boss includes a rising boss, the end surface of which is spiral; the spiral groove includes a descending groove, which is matched with the rising boss, and the end surface of which is spiral.

[0011] In some optional embodiments, the spiral boss also includes a descending boss, the end side wall of the ascending boss is connected to the starting side wall of the descending boss, and the end face of the descending boss is spiral; the spiral groove also includes an ascending groove, the end side wall of the descending groove is connected to the starting side wall of the ascending groove, the ascending groove is adapted to the descending boss, and the end face of the ascending groove is spiral.

[0012] In some optional embodiments, along the circumference of the door body sleeve, the extension angle range of the rising boss is 30 degrees to 70 degrees, and / or the extension angle range of the descending groove is 30 degrees to 70 degrees.

[0013] In some optional embodiments, the hinge assembly for refrigeration and freezing equipment further includes: an elastic member, which is sleeved on the outside of the hinge shaft and connected to the door shaft sleeve, and is used to apply a force to the door shaft sleeve away from the hinge shaft sleeve.

[0014] In some optional embodiments, the hinge shaft includes a threaded portion, a boss portion and a shaft body, the outer wall of the threaded portion is provided with a thread, the hinge base plate is provided with a threaded hole, and the threaded portion is threadedly connected to the hinge base plate; the two ends of the boss portion are respectively connected to the threaded portion and the shaft body, the diameter of the boss portion is larger than the diameter of the shaft body, the boss portion is connected to the hinge base plate, the door body sleeve, the elastic part and the hinge sleeve are sequentially sleeved on the outside of the shaft body, and the first end of the elastic part is connected to the side wall of the boss portion facing away from the hinge base plate.

[0015] In some optional embodiments, the hinge sleeve includes a first connecting plate and a first sleeve body connected to each other, the first connecting plate is connected to the hinge base plate, the side wall of the first sleeve body facing away from the door body sleeve is connected to the boss portion, the first sleeve body is sleeved on the outside of the shaft body, and part of the elastic member is located between the first sleeve body and the shaft body.

[0016] In some optional embodiments, the door body sleeve includes a second connecting plate and a second sleeve body that are connected to each other, the second connecting plate is used to connect to the door body, and the second sleeve body is sleeved on the outside of the hinge shaft; the second sleeve body includes a first sleeve body and a second sleeve body, the first sleeve body is connected to the hinge shaft, the second sleeve body is arranged on the side of the first sleeve body facing the hinge sleeve, and the side wall of the second sleeve body is provided with one of the matching spiral bosses and spiral grooves; the inner diameter of the second sleeve body is larger than the inner diameter of the first sleeve body, part of the elastic member is located between the second sleeve body and the shaft body, and the second end of the elastic member is connected to the side wall of the first sleeve body facing the hinge sleeve.

[0017] According to a second embodiment provided by the present application, a refrigeration and freezing device is provided, comprising a hinge assembly for the refrigeration and freezing device as described in any one of the aforementioned items.

[0018] The hinge assembly for refrigeration and freezing equipment and the refrigeration and freezing equipment provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] With this optional embodiment, when the user closes the door to a certain angle, the door body can automatically close due to the matching spiral boss and spiral groove, and the door body is limited after closing. This improves the sealing of the door body to the box body, reduces the occurrence of condensation in the refrigeration and freezing equipment, and improves the performance of the refrigeration and freezing equipment. It can also reduce the force applied by the user when closing the door, reduce the occurrence of box body vibration caused by closing the door with force, and improve the user experience.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0022] Figure 1 It is a structural schematic diagram of a hinge assembly for a refrigeration and freezing device provided by an embodiment of the present disclosure when the door body is opened;

[0023] Figure 2 It is a structural schematic diagram of a hinge assembly for a refrigeration and freezing device provided by an embodiment of the present disclosure from a perspective when the door body is closed;

[0024] Figure 3 is a structural schematic diagram of a hinge assembly for a refrigeration and freezing device provided by an embodiment of the present disclosure when the door body is closed from another perspective;

[0025] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0026] Figure 5 It is a schematic diagram of the exploded structure of a hinge assembly for refrigeration and freezing equipment provided by an embodiment of the present disclosure.

[0027] Reference numerals:

[0028] 100, hinge base plate; 200, hinge shaft; 210, threaded portion; 220, boss portion; 230, shaft body; 300, hinge sleeve; 310, spiral groove; 320, first connecting plate; 330, first sleeve body; 400, door sleeve; 410, spiral boss; 420, second connecting plate; 430, second sleeve body; 431, first sleeve body; 432, second sleeve body; 440, limiting protrusion; 500, elastic member. DETAILED DESCRIPTION

[0029] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0030] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0031] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0033] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0035] The present disclosure provides a hinge assembly for a refrigeration and freezing device, such as Figure 1 As shown, the hinge assembly for refrigeration and freezing equipment includes a hinge base plate 100, a hinge shaft 200, a hinge sleeve 300 and a door sleeve 400. The hinge base plate 100 is used to be connected to the box body of the refrigeration and freezing equipment. The hinge shaft 200 is connected to the hinge base plate 100, the hinge sleeve 300 is connected to the hinge base plate 100, and the hinge sleeve 300 is sleeved on the outside of the hinge shaft 200. The door sleeve 400 is used to be connected to the door body of the refrigeration and freezing equipment, sleeved on the outside of the hinge shaft 200, and connected to the hinge sleeve 300, and the door sleeve 400 can rotate relative to the hinge shaft 200 and the hinge sleeve 300.

[0036] The side wall of the door body sleeve 400 facing the hinge sleeve 300 is provided with a matching spiral boss 410 and one of the spiral grooves 310, and the side wall of the hinge sleeve 300 facing the door body sleeve 400 is provided with a matching spiral boss 410 and the other of the spiral grooves 310; wherein, when the door body is closed on the box body, the spiral boss 410 is located in the spiral groove 310 to limit the rotation of the door body.

[0037] In this optional embodiment, the hinge shaft 200 and the hinge sleeve 300 are both connected to the hinge base plate 100, and the hinge base plate 100 is connected to the box body of the refrigeration and freezing equipment. When the door body of the refrigeration and freezing equipment is opened and closed, the hinge shaft 200 and the hinge base plate 100 are relatively stationary with the box body. The hinge sleeve 300 and the door body sleeve 400 are both sleeved on the outside of the hinge shaft 200, and the door body sleeve 400 is connected to the hinge sleeve 300, and the door body sleeve 400 is connected to the door body. In this way, when the door body is opened and closed, the door body can drive the door body sleeve 400 to rotate relative to the hinge shaft 200 and the hinge sleeve 300.

[0038] The side wall of the door body sleeve 400 facing the hinge sleeve 300 is connected to the side wall of the hinge sleeve 300 facing the door body sleeve 400 and can move relative to each other. When the hinge assembly for the refrigeration and freezing equipment is arranged at the lower end of the box body, the hinge sleeve 300 supports the door body sleeve 400 to support the door body.

[0039] The side wall of the door body sleeve 400 facing the hinge sleeve 300 is provided with one of the spiral boss 410 and the spiral groove 310, and the side wall of the hinge sleeve 300 facing the door body sleeve 400 is provided with the other of the spiral boss 410 and the spiral groove 310. In this way, when closing the door, after part of the spiral boss 410 is located in the spiral groove 310, due to the gravity of the door body, the spiral boss 410 and the spiral groove 310 can continue to move relative to each other, so that the spiral boss 410 is completely located in the spiral groove 310, thereby driving the door body to move toward the box body to close the box body. In addition, after the spiral boss 410 is located in the spiral groove 310, the spiral boss 410 and the spiral groove 310 can limit each other, so that the door body continues to close the door or performs a reverse door opening movement.

[0040] In this embodiment, when the user closes the door to a certain angle, the door body can automatically close due to the matching spiral boss 410 and spiral groove 310, and the door body is limited after closing. This improves the sealing of the door body to the box body, reduces the occurrence of condensation in the refrigeration and freezing equipment, and improves the performance of the refrigeration and freezing equipment. It can also reduce the force applied by the user when closing the door, reduce the occurrence of box body vibration caused by strong door closing, and improve the user experience.

[0041] Furthermore, combined with Figures 1 to 5 As shown, taking the case where the door sleeve 400 is provided with a spiral boss 410 and the hinge sleeve 300 is provided with a spiral groove 310 as an example, the hinge sleeve 300 includes a horizontal end face of the hinge sleeve 300, and the horizontal end face of the hinge sleeve 300 and the end face of the spiral groove 310 jointly enclose the end face of the hinge sleeve 300 facing the door sleeve 400. The door sleeve 400 includes a horizontal end face of the door sleeve 400, and the horizontal end face of the door sleeve 400 and the end face of the spiral boss 410 jointly enclose the end face of the door sleeve 400 facing the hinge sleeve 300.

[0042] In some optional embodiments, the spiral boss 410 includes a rising boss, the end surface of which is spiral-shaped. The spiral groove 310 includes a descending groove, which is matched with the rising boss, and the end surface of which is spiral-shaped.

[0043] In this embodiment, the rising boss means that the vertical distance between the end face of the rising boss and the bottom of the rising boss gradually increases along the circumference of the door body sleeve 400. The descending groove means that the vertical distance between the end face of the descending groove and the horizontal end face of the hinge sleeve 300 gradually increases along the circumference of the hinge sleeve 300. The descending groove is adapted to the rising boss. In this way, when the rising boss is located in the descending groove, the rising boss will not rotate in the descending groove, reducing the situation where the door cover is set on the box body and a gap is generated between the door body and the box body, thereby improving the sealing performance of the door body and the box body.

[0044] In this embodiment, when opening the door, the user applies force to the door body, so that the door body drives the door body sleeve 400 to rotate, so that the rising boss rotates out of the descending groove, and the end surface of the longest end of the rising boss can be connected to the horizontal end surface of the hinge sleeve 300 and move relative to the horizontal end surface of the hinge sleeve 300. Figure 1 As shown, after the door is opened, the longest end of the spiral boss 410 moves on the horizontal end surface of the hinge sleeve 300, and the door body can be stopped at any position to meet the user's different door opening angle requirements and improve the user's experience.

[0045] like Figure 2 and Figure 3 As shown, when closing the door, the user applies a reverse force to the door body. When the longest end of the rising boss rotates into the descending groove, the gravity of the door body can drive the longest end of the rising boss to continue to rotate and move downward, so that the rising boss can be completely located in the descending groove, thereby limiting the door body after the door body is closed.

[0046] Optionally, when the door is closed, the horizontal end surface of the hinge sleeve 300 abuts against the horizontal end surface of the door sleeve 400. In this way, the horizontal end surface of the hinge sleeve 300 can also provide support force to the door sleeve 400, thereby providing support force to the door, improving the stability and reliability of the door setting.

[0047] Furthermore, the spiral boss 410 also includes a descending boss, the end sidewall of the ascending boss is connected to the starting sidewall of the descending boss, and the end face of the descending boss is spiral. The spiral groove 310 also includes an ascending groove, the end sidewall of the descending groove is connected to the starting sidewall of the ascending groove, the ascending groove is adapted to the descending boss, and the end face of the ascending groove is spiral.

[0048] The descending boss refers to a vertical distance between the end face of the descending boss and the bottom of the descending boss that gradually decreases along the circumference of the door body sleeve 400. The bottom of the rising boss and the bottom of the descending boss can be located on the same end face as the horizontal end face of the door body sleeve 400. The end side wall of the rising boss is the side wall corresponding to the longest point of the vertical distance between the end face of the rising boss and the bottom of the rising boss, and the starting side wall of the descending boss is the side wall corresponding to the longest point of the vertical distance between the end face of the descending boss and the bottom of the descending boss. The end side wall of the rising boss is connected to the starting side wall of the descending boss, and the end side wall of the rising boss is the starting side wall of the descending boss. The spiral boss 410 has a longest end.

[0049] The rising groove means that along the circumference of the hinge sleeve 300, the vertical distance between the end surface of the rising groove and the horizontal end surface of the hinge sleeve 300 gradually decreases. The end side wall of the descending groove is the side wall corresponding to the lowest point of the descending groove, and the starting side wall of the rising groove is the side wall corresponding to the lowest point of the ascending groove. The end side wall of the descending groove is connected to the starting side wall of the ascending groove, that is, the spiral groove 310 has a lowest end.

[0050] In this embodiment, when the door is closed along the first rotation direction, the end surface of the spiral boss 410 can be moved along the end surface of the descending groove. When the door is closed along the second rotation direction, the end surface of the spiral boss 410 can be moved along the end surface of the ascending groove. In other words, the hinge assembly can be used for left-door refrigeration and freezing equipment, and can also be used for right-door refrigeration and freezing equipment, thereby improving the versatility of the hinge assembly used for refrigeration and freezing equipment.

[0051] Optionally, along the circumference of the door body sleeve 400, the rising boss and the descending boss are symmetrically arranged, and the descending groove and the rising groove are symmetrically arranged.

[0052] Furthermore, when the spiral groove 310 is disposed on the side wall of the hinge sleeve 300 facing the door sleeve 400 , the end surface of the spiral groove 310 and the end surface of the hinge sleeve 300 facing the door sleeve 400 have a spirally smooth transition.

[0053] The end surface of the spiral groove 310 and the horizontal end surface of the hinge sleeve 300 toward the door sleeve 400 have a smooth spiral transition, which can improve the smoothness of the movement of the spiral boss 410 on the end surface of the hinge sleeve 300 toward the door sleeve 400, thereby improving the stability of door opening and closing and the user experience.

[0054] Optionally, when the spiral groove 310 is provided on the side wall of the door sleeve 400 facing the hinge sleeve 300 , the end surface of the spiral groove 310 and the end surface of the door sleeve 400 facing the hinge sleeve 300 have a spirally smooth transition.

[0055] In some optional embodiments, along the circumference of the door body sleeve 400, the extension angle range of the rising boss is 30 degrees to 70 degrees, and / or the extension angle range of the descending groove is 30 degrees to 70 degrees.

[0056] In this embodiment, the extension angle range of the rising boss is 30 degrees to 70 degrees, and the extension angle range of the descending groove is 30 degrees to 70 degrees. In this way, when the angle between the door body and the box body is correspondingly 30 degrees to 70 degrees, the rising boss can be located in the descending groove so that the rising boss can continue to move along the descending boss to realize automatic door closing of the refrigeration and freezing equipment.

[0057] Optionally, when the extension angle of the rising boss and the extension angle of the descending groove are both 30 degrees, when the angle between the door body and the box body is less than or equal to 30 degrees, the door body can automatically close. When the extension angle of the rising boss and the extension angle of the descending groove are both 45 degrees, when the angle between the door body and the box body is less than or equal to 45 degrees, the door body can automatically close. When the extension angle of the rising boss and the extension angle of the descending groove are both 70 degrees, when the angle between the door body and the box body is less than or equal to 70 degrees, the door body can automatically close.

[0058] For example, the extension angle of the rising boss may be 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees or 70 degrees, and the extension angle of the descending groove may be correspondingly 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees or 70 degrees.

[0059] In this embodiment, the specific extension angles of the rising boss and the descending groove can be set according to the experience of technical personnel in this field or the needs of users. As long as the refrigeration and freezing equipment can be automatically closed when the user needs to close the door, the specific extension angles of the rising boss and the descending groove are not specifically limited here.

[0060] In some optional embodiments, such as Figure 1 , Figure 4 and Figure 5 As shown, the hinge assembly for the refrigeration and freezing equipment also includes an elastic member 500 , which is sleeved on the outside of the hinge shaft 200 and connected to the door body sleeve 400 , for applying a force to the door body sleeve 400 away from the hinge sleeve 300 .

[0061] In this embodiment, the elastic member 500 is sleeved on the outside of the hinge shaft 200, and the elastic member 500 can apply a force to the door body sleeve 400 away from the hinge sleeve 300, that is, the elastic member 500 can apply a supporting force to the door body sleeve 400 and the door body. This can reduce the force between the door body sleeve 400 and the hinge sleeve 300, especially reduce the pressure of the door body on the spiral boss 410, and improve the service life of the door body sleeve 400. On the other hand, when closing the door, the elastic member 500 is compressed, which can increase or decrease the supporting role of the elastic member 500 on the door body sleeve 400, so as to reduce the force applied by the user to rotate the spiral boss 410 out of the spiral groove 310 when opening the door, thereby improving the user's experience.

[0062] Optionally, the elastic member 500 includes a compression spring.

[0063] For example, Figure 4 and Figure 5 As shown, the hinge shaft 200 includes a threaded portion 210, a boss portion 220 and a shaft body 230. The outer wall of the threaded portion 210 is provided with a thread, the hinge base plate 100 is provided with a threaded hole, and the threaded portion 210 is threadedly connected to the hinge base plate 100; the two ends of the boss portion 220 are respectively connected to the threaded portion 210 and the shaft body 230, the diameter of the boss portion 220 is larger than the diameter of the shaft body 230, the boss portion 220 is connected to the hinge base plate 100, the door body sleeve 400, the elastic member 500 and the hinge sleeve 300 are sequentially sleeved on the outside of the shaft body 230, and the first end of the elastic member 500 is connected to the side wall of the boss portion 220 facing away from the hinge base plate 100.

[0064] In this embodiment, the threaded portion 210 is threadedly connected to the threaded hole of the hinge base 100 to install the hinge shaft 200 on the hinge base 100 , and the distance between the hinge shaft 200 and the hinge base 100 can be adjusted through the threaded connection.

[0065] Furthermore, the end of the threaded portion 210 is threadedly connected to the threaded hole and passes through the hinge base plate 100. The hinge assembly for the refrigeration and freezing equipment also includes a nut, which is threadedly connected to the end of the threaded portion 210 to reduce the occurrence of the hinge shaft 200 being detached from the hinge base plate 100.

[0066] The diameter of the boss portion 220 is greater than the diameter of the shaft body 230, and the two ends of the boss portion 220 are respectively connected to the threaded portion 210 and the shaft body 230, so that the elastic member 500 can be sleeved on the shaft body 230, and the first end of the elastic member 500 is connected to the boss portion 220, and the boss portion 220 provides support force to the elastic member 500.

[0067] Furthermore, if Figures 2 to 5As shown, the hinge sleeve 300 includes a first connecting plate 320 and a first sleeve body 330 connected to each other, the first connecting plate 320 is connected to the hinge base plate 100, the side wall of the first sleeve body 330 facing away from the door sleeve 400 is connected to the boss portion 220, the first sleeve body 330 is sleeved on the outside of the shaft body 230, and part of the elastic member 500 is located between the first sleeve body 330 and the shaft body 230.

[0068] In this embodiment, the side wall of the first sleeve body 330 facing away from the door sleeve 400 is connected to the boss portion 220, and the boss portion 220 can support the first sleeve body 330. The distance between the hinge shaft 200 and the hinge base plate 100 can be adjusted through the threaded portion 210. The boss portion 220 supports the first sleeve body 330 to adjust the distance between the hinge sleeve 300 and the hinge base plate 100, thereby adjusting the setting height of the door sleeve 400 and the door body, so that the door body corresponds to the box body, and the sealing performance of the door body to the box body is improved.

[0069] Furthermore, if Figure 3 and Figure 4 As shown, the door body sleeve 400 includes a second connecting plate 420 and a second sleeve body 430 connected to each other. The second connecting plate 420 is used to be connected to the door body, and the second sleeve body 430 is sleeved on the outer side of the hinge shaft 200.

[0070] The second sleeve body 430 includes a first sleeve body 431 and a second sleeve body 432. The first sleeve body 431 is connected to the hinge shaft 200. The second sleeve body 432 is disposed on a side of the first sleeve body 431 facing the hinge sleeve 300. The side wall of the second sleeve body 432 is provided with one of the spiral boss 410 and the spiral groove 310. The inner diameter of the second sleeve body 432 is greater than the inner diameter of the first sleeve body 431. A portion of the elastic member 500 is located between the second sleeve body 432 and the shaft body 230, and the second end of the elastic member 500 is connected to the side wall of the first sleeve body 431 facing the hinge sleeve 300.

[0071] In this embodiment, the inner diameter of the second sleeve 432 is larger than the inner diameter of the first sleeve 431 , so that the side wall of the first sleeve 431 faces the hinge sleeve 300 and is connected to the second end of the elastic member 500 so that the elastic member 500 provides support force for the first sleeve 431 .

[0072] Furthermore, if Figure 5 As shown, the outer side wall of the second sleeve body 430 is used to connect with the door body, and a limiting protrusion 440 is convexly provided on the outer side wall of the second sleeve body 430, and the limiting protrusion 440 is used to adapt to the limiting groove of the door body.

[0073] In this embodiment, the outer wall of the second sleeve body 430 is provided with a limiting protrusion 440, and the limiting protrusion 440 is adapted to the limiting groove. In this way, when the door body transmits the rotational force to the door body sleeve 400 through the second connecting plate 420, the door body can also transmit the rotational force to the second sleeve body 430 (i.e., the door body sleeve 400) through the limiting groove and the limiting protrusion 440, thereby reducing the stress at the connection between the second connecting plate 420 and the second sleeve body 430, reducing the occurrence of the second connecting plate 420 and the second sleeve body 430 breaking, and improving the working reliability and service life of the door body sleeve 400.

[0074] An embodiment of the present disclosure provides a refrigeration and freezing device, comprising any one of the hinge assemblies for refrigeration and freezing devices described above.

[0075] The refrigeration and freezing equipment provided by the embodiment of the present disclosure includes the hinge assembly for refrigeration and freezing equipment described in any one of the above embodiments, and thus has all the beneficial effects of the hinge assembly for refrigeration and freezing equipment described in any one of the above embodiments, which will not be repeated here.

[0076] Optionally, the refrigeration and freezing equipment may be a refrigerator, a freezer, a freezer, a display cabinet, a wine cabinet, etc.

[0077] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying 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

1. A hinge assembly for a refrigeration and freezing device, characterized in that: include: A hinge base plate, used for connection with a cabinet of a refrigeration and freezing equipment; A hinge shaft connected to the hinge base plate; The hinge sleeve is connected to the hinge base plate and sleeved on the outer side of the hinge shaft. The door body shaft sleeve is used to connect with the door body of the refrigeration and freezing equipment, is sleeved on the outside of the hinge shaft, and is connected to the hinge shaft sleeve. The door body shaft sleeve can rotate relative to the hinge shaft and the hinge shaft sleeve; The side wall of the door body sleeve facing the hinge sleeve is provided with a matching spiral boss and one of the spiral grooves, and the side wall of the hinge sleeve facing the door body sleeve is provided with a matching spiral boss and the other of the spiral grooves; wherein, when the door body is closed on the box body, the spiral boss is located in the spiral groove to limit the rotation of the door body.

2. The hinge assembly for refrigeration and freezing equipment according to claim 1, characterized in that: The spiral boss includes a rising boss, and the end surface of the rising boss is spiral-shaped; The spiral groove comprises a descending groove, the descending groove is matched with the ascending boss, and the end surface of the descending groove is spiral.

3. The hinge assembly for refrigeration and freezing equipment according to claim 2, characterized in that: The spiral boss also includes a descending boss, the end side wall of the ascending boss is connected to the starting side wall of the descending boss, and the end face of the descending boss is spiral; The spiral groove also includes an ascending groove, the end side wall of the descending groove is connected to the starting side wall of the ascending groove, the ascending groove is matched with the descending boss, and the end face of the ascending groove is spiral.

4. The hinge assembly for refrigeration and freezing equipment according to claim 2, characterized in that: Along the circumference of the door body sleeve, the extension angle range of the rising boss is 30 degrees to 70 degrees, and / or the extension angle range of the descending groove is 30 degrees to 70 degrees.

5. The hinge assembly for a refrigerator and freezer according to any one of claims 1 to 4, characterized in that: Also includes: The elastic member is sleeved on the outside of the hinge shaft and connected to the door body shaft sleeve, and is used for applying a force to the door body shaft sleeve away from the hinge shaft sleeve.

6. The hinge assembly for a refrigerator and freezer according to claim 5, characterized in that: The hinge shaft includes a threaded portion, a boss portion and a shaft body. The outer wall of the threaded portion is provided with a thread, the hinge base plate is provided with a threaded hole, and the threaded portion is threadedly connected to the hinge base plate; the two ends of the boss portion are respectively connected to the threaded portion and the shaft body, the diameter of the boss portion is larger than the diameter of the shaft body, the boss portion is connected to the hinge base plate, the door body sleeve, the elastic part and the hinge sleeve are sequentially sleeved on the outside of the shaft body, and the first end of the elastic part is connected to the side wall of the boss portion away from the hinge base plate.

7. The hinge assembly for a refrigerator and freezer according to claim 6, characterized in that: The hinge sleeve includes a first connecting plate and a first sleeve body connected to each other. The first connecting plate is connected to the hinge base plate. The side wall of the first sleeve body facing away from the door body sleeve is connected to the boss portion. The first sleeve body is sleeved on the outside of the shaft body, and part of the elastic part is located between the first sleeve body and the shaft body.

8. The hinge assembly for a refrigerator and freezer according to claim 5, characterized in that: The door body sleeve comprises a second connecting plate and a second sleeve body connected to each other, the second connecting plate is used to be connected to the door body, and the second sleeve body is sleeved on the outer side of the hinge shaft; The second sleeve body includes a first sleeve body and a second sleeve body, the first sleeve body is connected to the hinge shaft, the second sleeve body is arranged on the side of the first sleeve body facing the hinge sleeve, and the side wall of the second sleeve body is provided with one of the matching spiral bosses and spiral grooves; the inner diameter of the second sleeve body is larger than the inner diameter of the first sleeve body, part of the elastic member is located between the second sleeve body and the shaft body, and the second end of the elastic member is connected to the side wall of the first sleeve body facing the hinge sleeve.

9. The hinge assembly for a refrigerator and freezer according to claim 8, characterized in that: The outer side wall of the second sleeve body is used to be connected with the door body. A limiting protrusion is convexly provided on the outer side wall of the second sleeve body. The limiting protrusion is used to match with the limiting groove of the door body.

10. A refrigeration and freezing equipment, characterized in that: include: A hinge assembly for a refrigerator-freezer as claimed in any one of claims 1 to 9.

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