Active sliding door mechanism, door body assembly, and refrigeration device

Abstract

An active sliding door mechanism, a door body assembly, and a refrigeration device. The active sliding door mechanism (7) comprises: a first base, a rolling body, a first sliding block (715), a second sliding block (709), and a connecting member. A first guide rail (710) is formed on one side of the first base, and a second guide rail (705) is formed on the other side of the first base. The first sliding block (715) is sleeved on the first guide rail (710), and the first sliding block (715) is slidably arranged on the first guide rail (710) by means of the rolling body. The second sliding block (709) is sleeved on the second guide rail (705), and the second sliding block (709) is slidably arranged on the second guide rail (705) by means of the rolling body. The connecting member is separately connected to the first sliding block (715) and the second sliding block (709); and when the first sliding block (715) moves on the first guide rail (710), the first sliding block (715) drives, by means of the connecting member, the second sliding block (709) to move on the second guide rail (705) in an opposite direction. The active sliding door mechanism (7) can drive a door panel (21) to slide relative to a cabinet door (2) during rotation of the cabinet door (2), so that the door panel (21) avoids obstacles, and the rolling body is arranged between the sliding blocks and the guide rails to reduce the friction force applied on the sliding blocks, thereby enabling smoother sliding of the door panel (21).

Description

Active sliding door mechanism, door assembly and refrigeration equipment

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese patent application No. 202422090538.8, filed on August 26, 2024, entitled “Active Sliding Door Mechanism, Door Assembly and Refrigeration Equipment”, which is incorporated herein by reference in its entirety. Technical Field

[0003] This application relates to the field of household appliance technology, and in particular to an active sliding door mechanism, door assembly, and refrigeration equipment. Background Technology

[0004] With the growing demand for the integration of home appliances and home furnishings, embedded design of home appliances has become a trend.

[0005] However, in pursuit of a better integrated home aesthetic, it is sometimes necessary to attach additional door panels to the cabinet door surface. Furthermore, a higher clearance is required between the embedded appliances and the cabinet sidewalls to further enhance the integrated effect. This results in the door assembly with the panel interfering with the sidewalls of the cabinet installation space during opening and closing when the appliance is embedded in the cabinet, preventing the appliance door assembly from opening or closing properly. Summary of the Invention

[0006] This application aims to at least solve one of the technical problems existing in the related art. To this end, this application proposes an active sliding door mechanism, a door assembly, and a refrigeration device to solve the problem that the door assembly with the door panel may interfere with the side of the installation space during the opening and closing process, causing the door assembly of the appliance to be unable to open or close normally.

[0007] An active sliding door mechanism according to an embodiment of this application is applied to a refrigeration device. The refrigeration device includes: a cabinet, a door, and a door panel. The door is rotatably mounted on the cabinet, and a door panel is provided on the outer side of the door that can slide along it.

[0008] The active sliding door mechanism includes:

[0009] A first base is used to be installed on the door 2. A first guide rail is formed on one side of the first base and a second guide rail is formed on the other side.

[0010] The system includes a rolling element, a traction mechanism, a first slider, and a second slider. The first slider is fitted onto the first guide rail and connected to the housing via the traction mechanism. The first slider is slidably mounted on the first guide rail via the rolling element. The second slider is fitted onto the second guide rail and is used to connect to the door panel. The second slider is slidably mounted on the second guide rail via the rolling element.

[0011] The connector has two ends that are respectively connected to the first slider and the second slider;

[0012] When the first slider moves on the first guide rail, the first slider drives the second slider to move in the opposite direction on the second guide rail via the connector.

[0013] In some embodiments, a first rolling gap is formed between the first slider and the first guide rail, and a second rolling gap is formed between the second slider and the second guide rail;

[0014] The rolling element includes a first ball and a second ball, wherein the first ball is rotatably disposed in the first rolling gap, and the second ball is rotatably disposed in the second rolling gap.

[0015] In some embodiments, multiple rows of first rolling gaps are formed between the first slider and the first guide rail, and multiple rows of second rolling gaps are formed between the second slider and the second guide rail;

[0016] The rolling element includes multiple sets of first balls and multiple sets of second balls, with each set of first balls disposed in each row of first rolling gaps and each set of second balls disposed in each row of second rolling gaps.

[0017] In some embodiments, both the first rolling gap and the second rolling gap are provided with three rows, and both the first ball and the second ball are provided with three groups.

[0018] In some embodiments, the first guide rail has three first concave surfaces arranged sequentially along its circumference, the first slider has a first groove formed thereon, and the sidewall of the first groove and the three first concave surfaces form three rows of first rolling gaps.

[0019] The second guide rail has three second concave surfaces arranged sequentially along its circumference, and the second slider has a second groove formed therein. The sidewall of the second groove and the three second concave surfaces form three rows of second rolling gaps.

[0020] In some embodiments, the first guide rail and the second guide rail are arranged in parallel, and the first guide rail and the second guide rail are respectively arranged on opposite sides of the first base.

[0021] In some embodiments, the rolling element further includes:

[0022] A first support frame is disposed between the first slider and the first guide rail. The first support frame has a first limiting notch at the position corresponding to the first rolling gap, and the first ball is disposed in the first limiting notch.

[0023] The second support frame is disposed between the second slider and the second guide rail. The second support frame has a second limiting notch at the position corresponding to the second rolling gap, and the second ball is disposed in the second limiting notch.

[0024] A door assembly according to an embodiment of this application includes:

[0025] The cabinet door is rotatably connected to the cabinet body and is suitable for opening or closing the storage space of the cabinet body;

[0026] A door panel, slidably disposed on the outside of the cabinet door; and,

[0027] As described in any of the above, the active sliding door mechanism is disposed on the box door, the first slider is connected to the box body via the traction mechanism, and the second slider is connected to the door panel;

[0028] During the opening or closing of the cabinet door, the first slider and the second slider move in opposite directions to drive the door panel to move relative to the width direction of the cabinet door.

[0029] According to the door assembly of the embodiments of this application, the door assembly further includes:

[0030] The driven sliding door mechanism includes a second base and a third slider;

[0031] A third guide rail is formed on the second base, and the third slider is slidably disposed on the third guide rail and connected to the door panel.

[0032] A refrigeration device according to an embodiment of this application includes:

[0033] The container forms multiple storage spaces;

[0034] Multiple door components as described in any of the above, each door component corresponding to one of the storage spaces, are configured to drive the door panel to move relative to the corresponding door during the opening or closing of any of the cabinet doors.

[0035] According to an embodiment of this application, a refrigeration device is provided, wherein the cabinet forms a first storage space and a second storage space, and two door components are provided, namely a first door component and a second door component;

[0036] The door of the first door assembly is rotatably connected to the box body and is adapted to open or close the first storage space; the door of the second door assembly is rotatably connected to the box body and is adapted to open or close the second storage space.

[0037] According to an embodiment of this application, a refrigeration device has three sets of first and / or second ball bearings in the first door assembly, and four sets of first and / or second ball bearings in the second door assembly. The weight of the second door assembly is greater than the weight of the first door assembly.

[0038] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects:

[0039] According to the active sliding door mechanism of this application, a first guide rail and a second guide rail are provided on both sides of a first base. A first slider and a second slider are slidably provided on the first guide rail and the second guide rail, respectively. The first slider and the second slider can slide synchronously along their respective guide rails under the drive of the connecting member, and the sliding directions are opposite. The first slider is connected to the housing through a traction mechanism, and the second slider is connected to the door panel provided on the outside of the housing door. So that when the housing door rotates, the housing body drives the two sliders to slide relative to each other through the traction mechanism and the connecting member, so as to drive the door panel to slide relative to the housing door, so that the door panel can avoid obstacles on both sides during the rotation and opening of the housing door. At the same time, by providing a rolling element between the slider and the guide rail, it is beneficial to reduce the friction between the slider and the guide rail, so that the sliding of the first slider and the second slider is smoother, thereby making the sliding of the door panel smoother as well.

[0040] According to the door assembly of the present application embodiment, an active sliding door mechanism is provided on the door. The active sliding door mechanism is connected to the box body and the door panel respectively, so that when the box door rotates to open or close relative to the box body, it drives the door panel to slide in the width direction relative to the box door, so that the door panel can avoid obstacles such as side walls and objects during the closing or opening of the box door. At the same time, the rolling element of the active sliding door mechanism can reduce the friction force on the slider, making the sliding of the door panel smoother.

[0041] According to the refrigeration device of this application embodiment, by combining the cabinet door and the door panel, the refrigeration device can avoid interference between the door panel and surrounding objects when opening and closing, greatly improving the convenience of use. This design advantage is particularly obvious in narrow kitchen environments. In addition, the arrangement of the slider, guide rail, and rolling elements in the active sliding door mechanism allows the door panel to move smoothly and easily during opening and closing, improving the service life and stability of the refrigerator.

[0042] Furthermore, by setting multiple sets of first balls between the first slider and the first guide rail, and multiple sets of second balls between the second slider and the second guide rail, the rolling force points between the slider and the guide rail are more numerous and more dispersed, making the sliding of the first slider and the second slider more stable and smooth.

[0043] Furthermore, by setting a first support frame and a second support frame between the first slider and the first guide rail, and between the second slider and the second guide rail, respectively, the first ball and the second ball are limited to prevent them from shifting, thereby making the sliding of the first slider and the second slider more stable and smooth.

[0044] Furthermore, by setting a driven sliding door mechanism to support and assist the door panel sliding, the sliding of the door panel becomes more stable and smooth.

[0045] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 is a schematic diagram of the sliding door mechanism provided in an embodiment of this application;

[0048] Figure 2 is a side view of the sliding door mechanism provided in an embodiment of this application;

[0049] Figure 3 is a schematic diagram of the refrigeration equipment provided in an embodiment of this application;

[0050] Figure 4 is a schematic diagram of the refrigeration equipment provided in the embodiment of this application with the door open outwards.

[0051] Figure label:

[0052] Figure 1 is a schematic diagram of one of the active sliding door mechanisms provided in the embodiments of this application;

[0053] Figure 2 is a second schematic diagram of the active sliding door mechanism provided in the embodiments of this application;

[0054] Figure 3 is a side view of the active sliding door mechanism provided in an embodiment of this application;

[0055] Figure 4 is a side view of an active sliding door mechanism provided in another embodiment of this application;

[0056] Figure 5 is a schematic diagram of the refrigeration equipment provided in the embodiment of this application with the door open outward;

[0057] Figure 6 is an exploded view of the refrigeration equipment provided in an embodiment of this application;

[0058] Figure 7 is a schematic diagram of the driven sliding door mechanism provided in an embodiment of this application.

[0059] Reference numerals: 1. Box body; 2. Box door; 21. Door panel; 4. First hinge; 7. Active sliding door mechanism; 701. Second pivot fixing seat; 702. Traction rod; 703. Pin; 704. First fixing seat; 705. Second guide rail; 706. First connecting piece; 707. Second support frame; 7071. Second ball bearing; 708. Slot; 709. Second slider; 710. First guide rail; 711. Second fixing seat; 712. Second connecting piece; 713. First pivot fixing seat; 714. First support frame; 7141. First ball bearing; 715. First slider; 8. Driven sliding door mechanism; 817. Second base; 813. Third slider. Detailed Implementation

[0060] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0061] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0063] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] The active sliding door mechanism, door assembly, and refrigeration device of this application are described below with reference to Figures 1 to 7. The active sliding door mechanism and door assembly of this application can be applied to cabinet doors or other doors of household appliances, such as refrigerator doors. However, it should be understood that the door mechanism and door assembly of this application can also be applied to dishwashers, washing machines, or any other suitable equipment. The refrigeration device of this application is applied, for example, to a refrigerator. However, it should be understood that the refrigeration device of this application can also be applied to a freezer or any other suitable equipment.

[0066] In one embodiment of this application, as shown in Figures 1, 2, 5, and 6, an active sliding door mechanism 7 is applied to a refrigeration device. The refrigeration device includes: a housing 1, a door 2, and a door panel 21. The door 2 is rotatably mounted on the housing 1, and a door panel 21 is provided on the outer side of the door 2, along which it can slide. The active sliding door mechanism 7 includes: a first base for mounting on the door 2, a first guide rail 710 formed on one side of the first base, and a second guide rail 705 formed on the other side; a rolling element; a traction mechanism; a first slider 715; and a second slider 709. The first slider 715 is sleeved on the first guide rail 710 and connected to the housing 1 via the traction mechanism. The first slider 715 is slidably mounted on the first guide rail 710 via the rolling element. The second slider 709 is sleeved on the second guide rail 705 and is connected to the door panel 21. The second slider 709 is slidably mounted on the second guide rail 705 via the rolling element. The connector has two ends connected to the first slider 715 and the second slider 709, respectively. When the first slider 715 moves on the first guide rail 710, the first slider 715 drives the second slider 709 to move in the opposite direction on the second guide rail 705 via the connector.

[0067] In this embodiment, the first base can be mounted on the door 2. The connecting component can be a traction rope, a transmission belt, or other connecting parts. The two ends of the connecting component are respectively connected to the first slider 715 and the second slider 709, so that the first slider 715 can drive the second slider 709 to move synchronously, thereby causing the door panel 21 to slide relative to the door 2.

[0068] By reasonably setting the extension direction of the connector, the first slider 715 and the second slider 709 move in opposite directions during movement, so as to drive the door panel 21 to avoid obstacles.

[0069] Specifically, during the process of the door 2 rotating outwards to open the box body 1, the box body 1 drives the first slider 715 to slide towards the first hinge 4 via a traction mechanism. Simultaneously, the first slider 715, through a connecting member, drives the second slider 709 to slide in the opposite direction (i.e., away from the first hinge 4), thereby preventing interference between the door panel 21 and external obstacles. During the process of the door 2 rotating outwards to close to close the box body 1, the box body 1 drives the first slider 715 to slide away from the first hinge 4 via a traction mechanism. Simultaneously, the first slider 715, through a connecting member, drives the second slider 709 to slide in the opposite direction (i.e., towards the first hinge 4), thereby preventing interference between the closed door panel 21 and obstacles.

[0070] Meanwhile, by setting rolling elements between the first slider 715 and the first guide rail 710, and between the second slider 709 and the second guide rail 705, the sliding friction between the slider and the guide rail is converted into rolling friction, making the sliding of the first slider 715 and the second slider 709 smoother, thereby making the sliding of the door panel 21 smoother as well.

[0071] According to the active sliding door mechanism 7 of this application, a first guide rail 710 and a second guide rail 705 are provided on both sides of the first base. A first slider 715 and a second slider 709 are slidably provided on the first guide rail 710 and the second guide rail 705, respectively. The first slider 715 and the second slider 709 can slide synchronously along their respective guide rails under the drive of the connecting member, and the sliding directions are opposite. The first slider 715 is connected to the housing 1 through a traction mechanism, and the second slider 709 is connected to the door panel 21 provided on the outside of the housing door 2. So that when the housing door 2 rotates, the housing 1 drives the two sliders to slide relative to each other through the traction mechanism and the connecting member, so as to drive the door panel 21 to slide relative to the housing door 2, so that the door panel 21 can avoid obstacles on both sides during the rotation and opening of the housing door 2. At the same time, by providing a rolling element between the slider and the guide rail, it is beneficial to reduce the friction between the slider and the guide rail, so that the sliding of the first slider 715 and the second slider 709 is smoother, thereby making the sliding of the door panel 21 smoother as well.

[0072] It should be noted that, in practical applications, the design of the first slider 715, the second slider 709, and other sliders in this application can be flexible and varied to adapt to different working scenarios and performance requirements. They are not limited to specific shapes, sizes, or materials, but can be customized and optimized according to specific needs.

[0073] From a material perspective, the first slider 715, the second slider 709, and other sliders in this application can be made of materials with high wear resistance, low coefficient of friction, and good stability, such as metal alloys, engineering plastics, or special lubricating materials. These material choices aim to improve the durability of the sliders, reduce wear and noise during sliding, and ensure smooth sliding.

[0074] In terms of structural design, the first slider 715, the second slider 709, and other sliders in this application can adopt various forms of guide rail contact surfaces, such as planar contact, ball contact, or sliding bearing contact. Each of these different contact methods has its advantages and disadvantages. For example, ball contact can reduce friction and wear, but it is more expensive; while planar contact has a simple structure, but may require more frequent lubrication and maintenance. Therefore, factors such as usage conditions, cost-effectiveness, and ease of maintenance should be comprehensively considered when making a selection.

[0075] In one embodiment of this application, the second slider 709 is provided with a slot 708 so as to be inserted into the connector on the door panel 21.

[0076] In one embodiment of this application, as shown in Figures 1 and 2, the traction mechanism includes a traction rod 702, a first rotating shaft fixing seat 713, and a second rotating shaft fixing seat 701. The first rotating shaft fixing seat 713 is connected to the first slider 715, and the second rotating shaft fixing seat 701 is used to connect to the housing 1. One end of the traction rod 702 is rotatably connected to the first rotating shaft fixing seat 713, and the other end of the traction rod 702 is rotatably connected to the second rotating shaft fixing seat 701.

[0077] In this embodiment, by fixing the first rotating shaft fixing seat 713 and the second rotating shaft fixing seat 701 to the first slider 715 and the box body 1 respectively, and connecting the first rotating shaft fixing seat 713 and the second rotating shaft fixing seat 701 through the traction rod 702, the distance between the first slider 715 and the second rotating shaft fixing seat 701 remains constant. When the box door 2 rotates relative to the box body 1, the angle between the box body 1 and the box door 2 changes, thereby pulling the first slider 715 through the transmission connection of the traction rod 702, the first rotating shaft fixing seat 713 and the second rotating shaft fixing seat 701, causing the first slider 715 to slide on the first base, and driving the second slider 709 to slide, so as to realize the movement of the door panel 21 relative to the box door 2.

[0078] Specifically, one end of the traction rod 702 is rotatably connected to the first rotating shaft fixing seat 713 via a pin 703, and the other end is rotatably connected to the second rotating shaft fixing seat 701 via another pin 703.

[0079] In one embodiment of this application, as shown in Figures 1 and 2, the connector includes a first connector 706 and a second connector 712. The first connector 706 bypasses one end of the first base, and its two ends are respectively connected to one end of the first slider 715 and the second slider 709; the second connector 712 bypasses the other end of the first base, and its two ends are respectively connected to the other ends of the first slider 715 and the second slider 709.

[0080] In this embodiment, by connecting the first connector 706 around one end of the first base to the first slider 715 and the second slider 709 respectively, when the first slider 715 slides away from the first base under the drive of the housing 1 and the traction mechanism, the first slider 715 drives the second slider 709 to slide closer to the first base via the first connector 706; simultaneously, by connecting the second connector 712 around the other end of the first base to the first slider 715 and the second slider 709 respectively, when the first slider 715 slides away from the first base, the second slider 709 slides closer to the first base via the first connector 706. When block 715 slides towards the other end away from the first base under the drive of the housing 1 and the traction mechanism, the first slider 715 drives the second slider 709 to slide towards the other end closer to the first base through the second connector 712. This achieves that when the first slider 715 slides towards both ends of the first base, the second slider 709 can be driven to slide in the opposite direction to the first slider 715. This allows the door panel 21 to slide relative to the door 2 as the door 2 rotates when the door 2 is opened and closed, so as to avoid interference with obstacles and affect the opening and closing of the door 2.

[0081] In one embodiment of this application, as shown in Figures 1 and 2, the active sliding door mechanism 7 further includes: a first fixed seat 704 and a second fixed seat 711. The first fixed seat 704 is connected to one end of the first base and forms a first limiting groove. The two ends of the first limiting groove are connected to one end of the first guide rail 710 and the second guide rail 705. A portion of the first connecting member 706 is slidably disposed in the first limiting groove. The second fixed seat 711 is connected to the other end of the first base and forms a second limiting groove. The two ends of the second limiting groove are connected to the other ends of the first guide rail 710 and the second guide rail 705. A portion of the second connecting member 712 is slidably disposed in the second limiting groove.

[0082] In this embodiment, by providing a first fixing seat 704 and a second fixing seat 711 at both ends of the first base, the first fixing seat 704 and the second fixing seat 711 respectively form a first limiting groove and a second limiting groove that mate with the first guide rail 710 and the second guide rail 705, respectively limiting and guiding the position of the first connector 706 and the second connector 712, making the sliding of the first connector 706 and the second connector 712 smoother and more stable.

[0083] Specifically, the first fixed seat 704 is provided with a first fixed hole, and the first base is provided with a first waist-shaped hole extending along the width direction of the first base; the active sliding door mechanism 7 also includes a first adjusting member, which passes through the first fixed hole and is slidably disposed in the first waist-shaped hole, so as to adjust the tightness of the first connecting member 706 by adjusting the position of the first adjusting member in the first waist-shaped hole.

[0084] In this embodiment, by adjusting the position of the first adjusting member in the first waist-shaped hole, the position of the first fixing seat 704 can be adjusted along the width direction of the first base, so that the first fixing seat 704 can tighten or loosen the first connecting member 706, thereby adjusting the tightness of the first connecting member 706.

[0085] Since the first connector 706 and the second connector 712 are respectively located on the first fixed seat 704 and the second fixed seat 711 on both sides of the first base, and the first connector 706 and the second connector 712 are connected to the two ends of the first slider 715 and the second slider 709, when the first fixed seat 704 is adjusted to move relative to the first base through the first waist-shaped hole, the tightness of the first connector 706 is adjusted accordingly, and the tightness of the second connector 712 is also adjusted accordingly under the pull of the first fixed seat 704 on the first connector 706.

[0086] Understandably, the second fixed seat 711 may also be provided with a first fixed hole; the first base is provided with a first waist-shaped hole extending along the width direction of the first base; the active sliding door mechanism 7 also includes a first adjusting member, which passes through the first fixed hole and is slidably disposed in the first waist-shaped hole, so as to adjust the tightness of the second connecting member 712 by adjusting the position of the first adjusting member in the first waist-shaped hole.

[0087] In this embodiment, by adjusting the position of the first adjusting member in the first waist-shaped hole, the position of the second fixing seat 711 can be adjusted along the width direction of the first base, so that the second fixing seat 711 can tighten or loosen the second connecting member 712, thereby adjusting the tightness of the second connecting member 712.

[0088] Since the first connector 706 and the second connector 712 are respectively located on the first fixed seat 704 and the second fixed seat 711 on both sides of the first base, and the first connector 706 and the second connector 712 are connected to the two ends of the first slider 715 and the second slider 709, when the second fixed seat 711 is adjusted to move relative to the first base through the first waist-shaped hole, the second connector 712 adjusts its tightness accordingly, and the first connector 706 also adjusts its tightness accordingly under the pull of the second fixed seat 711 on the second connector 712.

[0089] Furthermore, in some embodiments, the first fixed base 704 is provided with a second oblong hole extending along the width direction of the first base. The first base is provided with a second fixing hole. The active sliding door mechanism 7 also includes a second adjusting member, which passes through the second oblong hole and the second fixing hole in sequence and is fixed in the external structure, so as to adjust the position of the first fixed base 704 relative to the external structure by the position of the second adjusting member in the second oblong hole.

[0090] In this embodiment, a second oblong hole is provided on the first fixed seat 704, and a second adjusting member is sequentially passed through the second oblong hole and the second fixed hole and fixed in the external structure, so as to fix the first fixed seat 704 in the external structure, so as to fix the active sliding door mechanism 7 on the external structure (such as the box door 2). At the same time, the second adjusting member can be finely adjusted along the position of the second oblong hole to adjust the position of the first fixed seat 704, thereby enabling adjustment of the position of the first fixed seat 704 relative to the external structure.

[0091] It is understood that the second fixing seat 711 may also be provided with a second oblong hole extending along the width direction of the first base; the second adjusting member passes through the second oblong hole and the second fixing hole in sequence and is fixed in the external structure so as to adjust the position of the second fixing seat 711 relative to the external structure by the position of the second adjusting member in the second oblong hole. The functions of the second adjusting member, the second oblong hole and the second fixing hole are similar to those in the above embodiment, and will not be repeated here.

[0092] In one embodiment of this application, as shown in Figures 3 and 4, a first rolling gap is formed between the first slider 715 and the first guide rail 710, and a second rolling gap is formed between the second slider 709 and the second guide rail 705; the rolling element includes a first ball 7141 and a second ball 7071, the first ball 7141 being rotatably disposed in the first rolling gap, and the second ball 7071 being rotatably disposed in the second rolling gap.

[0093] In this embodiment, by forming a first rolling gap and a second rolling gap between the first slider 715 and the first guide rail 710, and between the second slider 709 and the second guide rail 705, direct contact between the first slider 715 and the first guide rail 710, and between the second slider 709 and the second guide rail 705, can be avoided. Furthermore, a first rolling ball 7141 and a second rolling ball 7071 are respectively provided in the first rolling gap and the second rolling gap, allowing the first slider 715 to slide along the first guide rail 710 through the rolling of the first rolling ball 7141, and the second slider 709 to slide along the second guide rail 705 through the rolling of the second rolling ball 7071. This results in low friction and smoother sliding.

[0094] In one embodiment of this application, as shown in Figures 3 and 4, a plurality of rows of first rolling gaps are formed between the first slider 715 and the first guide rail 710, and a plurality of rows of second rolling gaps are formed between the second slider 709 and the second guide rail 705; the rolling body includes a plurality of sets of first balls 7141 and a plurality of sets of second balls 7071, each set of first balls 7141 being disposed in each row of first rolling gaps, and each set of second balls 7071 being disposed in each row of second rolling gaps.

[0095] In this embodiment, by setting multiple rows of first rolling gaps and setting a set of first balls 7141 in each row of first rolling gaps, the multiple sets of first balls 7141 can form multiple rolling support points between the first slider 715 and the first guide rail 710, making the sliding of the first slider 715 relative to the first guide rail 710 more stable and smooth. Similarly, by setting multiple rows of second rolling gaps and setting a set of second balls 7071 in each row of second rolling gaps, the multiple sets of second balls 7071 can also form multiple rolling support points between the second slider 709 and the second guide rail 705, making the sliding of the second slider 709 relative to the first guide rail 710 more stable and smooth.

[0096] Optionally, the plurality of first rolling gaps in each row can be spaced apart along the extension direction of the first guide rail 710, and the plurality of second rolling gaps in each row can be spaced apart along the extension direction of the second guide rail 705.

[0097] In one embodiment of this application, as shown in FIG3, the first rolling gap and the second rolling gap are each provided with three rows, and the first ball bearing 7141 and the second ball bearing 7071 are each provided with three sets.

[0098] In this embodiment, by setting three rows of first rolling gaps and second rolling gaps, and correspondingly setting three sets of first ball bearings 7141 and second ball bearings 7071, the first ball bearings 7141 and second ball bearings 7071 are arranged in three rows between the first slider 715 and the first guide rail 710 and between the second slider 709 and the second guide rail 705, making the sliding of the first slider 715 relative to the first guide rail 710 and the sliding of the second slider 709 relative to the second guide rail 705 more stable and smooth.

[0099] Further, as shown in Figure 3, the first guide rail 710 has three first concave surfaces arranged sequentially along its circumference, and the first slider 715 has a first groove formed therein. The sidewall of the first groove and the three first concave surfaces form three rows of first rolling gaps. The second guide rail 705 has three second concave surfaces arranged sequentially along its circumference, and the second slider 709 has a second groove formed therein. The sidewall of the second groove and the three second concave surfaces form three rows of second rolling gaps.

[0100] In this embodiment, a first groove is provided on the first slider 715, and a first concave surface is provided on the first guide rail 710. The first concave surface and the first groove form a first rolling gap. The first concave surface and the first groove respectively abut against the two sides of the first ball 7141, allowing the first ball 7141 to roll within the first rolling gap, thereby achieving relative sliding between the first slider 715 and the first guide rail 710. Simultaneously, the first concave surface can limit the first ball 7141 in the circumferential direction of the first guide rail 710, preventing circumferential displacement of the first ball 7141 on the first guide rail 710, thus making the sliding of the first slider 715 more stable and smooth. Similarly, a second groove on the second slider 709 and a second concave surface of the second guide rail 705 form a second rolling gap. The second concave surface and the second groove respectively abut against the two sides of the second ball 7071, preventing circumferential displacement when the second ball 7071 rolls to achieve relative sliding between the second slider 709 and the second guide rail 705, thus making the sliding of the second slider 709 more stable and smooth.

[0101] Optionally, the first concave surface is an arc surface that fits against the first ball 7141, and the sidewall of the first groove also has an arc surface that fits against the first ball 7141 at the position corresponding to the first concave surface, so that the first concave surface and the first groove fit better against the first ball 7141, the force-bearing area is larger, and the rolling is more stable and reliable; similarly, the second concave surface is an arc surface that fits against the second ball 7071, and the sidewall of the second groove also has an arc surface that fits against the second ball 7071 at the position corresponding to the second concave surface, so that the second concave surface and the second groove fit better against the second ball 7071, the force-bearing area is larger, and the rolling is more stable and reliable.

[0102] Optionally, in another embodiment of this application, as shown in FIG4, the first rolling gap and the second rolling gap are both provided with four rows, and the first ball 7141 and the second ball 7071 are both provided with four groups.

[0103] In this embodiment, by setting four rows of first rolling gaps and second rolling gaps, and correspondingly setting four sets of first ball bearings 7141 and second ball bearings 7071, the first ball bearings 7141 and second ball bearings 7071 are arranged in four rows between the first slider 715 and the first guide rail 710 and between the second slider 709 and the second guide rail 705, making the sliding of the first slider 715 relative to the first guide rail 710 and the sliding of the second slider 709 relative to the second guide rail 705 more stable and smooth.

[0104] Optionally, the projections of the four axes of the four rows of first rolling gaps onto the cross-section of the first guide rail 710 are arranged in a square and located at the four vertices of the square, with the central axis of the first guide rail 710 passing through the center of the square.

[0105] In one embodiment of this application, as shown in FIG4, the first guide rail 710 has four first concave surfaces arranged sequentially along its circumference, and the first slider 715 has a first groove formed thereon, with the sidewall of the first groove forming four rows of first rolling gaps with the four first concave surfaces. The second guide rail 705 has four second concave surfaces arranged sequentially along its circumference, and the second slider 709 has a second groove formed thereon, with the sidewall of the second groove forming four rows of second rolling gaps with the four second concave surfaces.

[0106] In this embodiment, a first groove is provided on the first slider 715, and a first concave surface is provided on the first guide rail 710. The first concave surface and the first groove form a first rolling gap. The first concave surface and the first groove respectively abut against the two sides of the first ball 7141, allowing the first ball 7141 to roll within the first rolling gap, thereby achieving relative sliding between the first slider 715 and the first guide rail 710. Simultaneously, the first concave surface can limit the first ball 7141 in the circumferential direction of the first guide rail 710, preventing circumferential displacement of the first ball 7141 on the first guide rail 710, thus making the sliding of the first slider 715 more stable and smooth. Similarly, a second groove on the second slider 709 and a second concave surface of the second guide rail 705 form a second rolling gap. The second concave surface and the second groove respectively abut against the two sides of the second ball 7071, preventing circumferential displacement when the second ball 7071 rolls to achieve relative sliding between the second slider 709 and the second guide rail 705, thus making the sliding of the second slider 709 more stable and smooth.

[0107] In one embodiment of this application, as shown in Figures 1 and 2, the first guide rail 710 and the second guide rail 705 are arranged in parallel, and the first guide rail 710 and the second guide rail 705 are respectively arranged on opposite sides of the first base.

[0108] In this embodiment, the first guide rail 710 and the second guide rail 705 are arranged in parallel. This ensures that the first slider 715 and the second slider 709 have sufficient sliding stroke while reducing the size of the active sliding door mechanism 7 along the length of the guide rail, making the entire mechanism more compact. At the same time, by setting the first guide rail 710 and the second guide rail 705 on opposite sides of the first base, the first slider 715 and the second slider 709 can maintain a certain distance when sliding relative to each other, avoiding interference between them. The structure is simple, convenient and practical.

[0109] In one embodiment of this application, as shown in FIG4, the rolling element further includes: a first support frame 714 and a second support frame 707. The first support frame 714 is disposed between the first slider 715 and the first guide rail 710, and the first support frame 714 has a first limiting notch at a position corresponding to the first rolling gap, and the first ball 7141 is disposed in the first limiting notch. The second support frame 707 is disposed between the second slider 709 and the second guide rail 705, and the second support frame 707 has a second limiting notch at a position corresponding to the second rolling gap, and the second ball 7071 is disposed in the second limiting notch.

[0110] In this embodiment, a first support frame 714 is provided between the first slider 715 and the first guide rail 710. A first limiting notch is formed on the first support frame 714 to accommodate the first ball 7141, thereby limiting the first ball 7141 and preventing it from rolling off course in the first rolling gap, making the sliding of the first slider 715 more stable and reliable. Similarly, a second support frame 707 is provided between the second slider 709 and the second guide rail 705 to limit the second ball 7071, thereby making the sliding of the second slider 709 more stable and reliable.

[0111] In another embodiment of this application, as shown in Figures 1, 5, and 6, a door assembly is provided, including: a door 2, a door panel 21, and an active sliding door mechanism 7 as provided in any of the above embodiments. The door 2 is rotatably connected to a housing 1 and is adapted to open or close the storage space of the housing 1. The door panel 21 is slidably disposed on the outside of the door 2; the active sliding door mechanism 7 is disposed on the door 2, a first slider 715 is connected to the housing 1 via a traction mechanism, and a second slider 709 is connected to the door panel 21. During the opening or closing of the door 2, the first slider 715 and the second slider 709 move in opposite directions to drive the door panel 21 to move relative to the width direction of the door 2.

[0112] Understandably, the width direction of the door 2 is parallel to the plane on which the door 2 is located and perpendicular to the pivot of the door 2, so that the door panel 21 can be moved away from or close to the pivot of the door 2 (as shown by the double-headed arrows in Figure 5). It should be noted that the parallel and perpendicular relationships in this application need to take into account the installation errors between various components, and an error of ±10° should be understood as being within the scope of protection of the patent.

[0113] Specifically, during the process of the door 2 rotating outwards to open the box body 1 (as shown by the arc arrow in Figure 5), the first slider 715 slides towards the first hinge 4 under the drive of the box body 1 and the traction mechanism. The first slider 715 drives the second slider 709 to slide away from the first hinge 4 through the connecting piece, thereby driving the door panel 21 to slide away from the first hinge 4, thus avoiding interference between the door panel 21 and obstacles on the outside. Similarly, during the process of the door 2 rotating to close to one side of the box body 1, the active sliding door mechanism 7 drives the door panel 21 to slide towards the first hinge 4, thus avoiding interference between the closed door panel 21 and obstacles. At the same time, when the slider and the guide rail slide relative to each other, the rolling element between the slider and the guide rail can convert sliding friction into rolling friction, reducing the friction force on the first slider 715 and the second slider 709, making the sliding smoother.

[0114] According to the door assembly of this application embodiment, an active sliding door mechanism 7 is provided on the door 2. The active sliding door mechanism 7 is connected to the box body 1 and the door panel 21 respectively. During the process of the door 2 rotating to open or close relative to the box body 1, the door panel 21 is driven to slide in the width direction relative to the door 2, so that the door panel 21 can avoid obstacles such as side walls and objects during the closing or opening of the door 2. At the same time, the rolling element of the active sliding door mechanism 7 can reduce the friction force on the slider, making the sliding of the door panel 21 smoother.

[0115] It is understood that since the active sliding door mechanism 7 has the beneficial effects of the above embodiments, the door assembly will have the corresponding beneficial effects of the above embodiments. The specific implementation method can be referred to the above embodiments, and will not be repeated in this application.

[0116] In one embodiment of this application, as shown in Figures 6 and 7, the door assembly further includes a driven sliding door mechanism 8, which includes a second base 817 and a third slider 813; a third guide rail is formed on the second base 817, and the third slider 813 is slidably disposed on the third guide rail and connected to the door panel 21.

[0117] In this embodiment, a driven sliding door mechanism 8 is provided on the cabinet door 2. The driven sliding door mechanism 8 has a second base 817, on which a third guide rail and a third slider 813 that can slide along the third guide rail are provided. The third slider 813 is connected to the door panel 21. The third slider 813 can slide with the door panel 21 when the door panel 21 slides relative to the cabinet door 2, providing support and assistance for the sliding of the door panel 21, making the sliding of the door panel 21 smoother relative to the cabinet door 2. At the same time, the driven sliding door mechanism 8 can cooperate with the active sliding door mechanism 7 to restrict the movement direction of the door panel 21, reducing the shaking of the door panel 21 during the sliding process and making the sliding more stable.

[0118] Optionally, there may be multiple driven sliding door mechanisms 8. Some of the driven sliding door mechanisms 8 may be coaxially mounted on the door 2 with the driving sliding door mechanism 7; other driven sliding door mechanisms 8 may be coaxially mounted on the door 2 with the driving sliding door mechanism 7.

[0119] Specifically, the driven sliding door mechanism 8 and the active sliding door mechanism 7 are coaxially arranged, meaning they share the same centerline or axis. This helps ensure that the door panel 21 maintains stable linear movement during sliding, reducing the possibility of deviation or swaying. Coaxial arrangement is used in situations where precise control of the direction of movement or maintaining the relative positional relationship between components is required.

[0120] The driven sliding door mechanism 8 and the active sliding door mechanism 7 are arranged on opposite axes, meaning they do not share the same centerline or axis. This configuration is used to provide additional support, stability, or to prevent the door panel 21 from deflecting around the sliding direction during sliding. The off-axis arrangement is used in situations requiring distributed force, increased stability, or the implementation of complex motion trajectories.

[0121] In another embodiment of this application, as shown in Figures 5 and 6, a refrigeration device is provided, including: a housing 1 and a door assembly as provided in any of the above embodiments. The housing 1 forms a plurality of storage spaces, and each door assembly corresponds to one of the storage spaces, so as to drive a door panel 21 to move relative to the corresponding door 2 during the opening or closing of any door 2.

[0122] In this embodiment, the door assembly includes: a door 2, a door panel 21, and an active sliding door mechanism 7. The active sliding door mechanism 7 is disposed on the door 2 and is configured to drive the door panel 21 to move relative to the width direction of the door 2 during the opening or closing of the door 2.

[0123] By setting a door panel 21 on the cabinet door 2, when the refrigeration equipment is embedded and set in a recessed space, or when it is set between two cabinets, the door panel 21 can be set flush with the cabinets on the side wall or sides of the recess, so as to reduce the gap between the refrigeration equipment and the adjacent wall or cabinet, making it more aesthetically pleasing.

[0124] Meanwhile, when the cabinet door 2 rotates, the active sliding door mechanism 7 can drive the door panel 21 to move relative to the cabinet door 2 during the rotation process, so as to move away from the wall or cabinet of the side door of the cabinet 1 as much as possible, so as to avoid these obstacles blocking the door panel 21 and affecting the rotation of the cabinet door 2, causing the cabinet door 2 to be unable to open or close normally.

[0125] The combination of door 2 and door panel 21 prevents interference between the door panel 21 and surrounding objects when the refrigeration equipment is opened and closed, greatly improving ease of use. This design advantage is particularly evident in confined kitchen environments. Furthermore, the sliding door mechanism 7 incorporates a slider, guide rail, and rolling elements between them, enabling the door panel 21 to move smoothly and seamlessly during opening and closing, thus enhancing the refrigerator's lifespan and stability.

[0126] It is understood that if the door assembly has the beneficial effects of the above embodiments, then the refrigeration equipment will have the corresponding beneficial effects of the above embodiments. The specific implementation method can be referred to the above embodiments, and will not be repeated in this application.

[0127] Understandably, multiple storage spaces can be arranged arbitrarily, such as vertically or horizontally. Storage conditions can be set for these spaces according to storage needs; for example, some spaces can be designated as refrigerators, while others can be designated as freezers.

[0128] As shown in Figure 5, an application scenario based on the above embodiment is as follows: A refrigeration device can be installed in a slotted structure in the middle of a cabinet. A door panel 21 is provided on the outer side of the cabinet door 2 of the refrigeration device's cabinet body 1. The material and color of the door panel 21 can be designed to be similar to or the same as the material and color of the cabinet's outer wall. When the door 2 is closed, the door panel 21 is flush with the edge of the slotted structure's opening on the cabinet's outer wall, and fits as close as possible to the opening of the slotted structure, so that the door panel 21 and the cabinet's outer wall maintain visual consistency with minimal gaps, resulting in a more aesthetically pleasing appearance.

[0129] When the cabinet door 2 is rotated outward to open, the active sliding door mechanism 7 drives the door panel 21 to slide away from the first hinge 4 to avoid interference between the door panel 21 and the cabinet wall on the side closer to the first hinge 4, which would prevent the cabinet door 2 from opening to a larger angle. When the cabinet door 2 is rotated to close, the active sliding door mechanism 7 drives the door panel 21 to slide closer to the first hinge 4 to avoid interference between the door panel 21 and the cabinet wall on the side away from the first hinge 4, which would prevent the cabinet door 2 from closing completely and affecting the refrigeration and preservation effect in the storage space. Furthermore, when the cabinet door 2 is fully closed, the door panel 21 can return to a state flush with the cabinet body.

[0130] In one embodiment of this application, as shown in FIG6, the cabinet 1 has a first storage space and a second storage space. There are two door assemblies, namely a first door assembly and a second door assembly. The door 2 of the first door assembly is rotatably connected to the cabinet 1 to open or close the first storage space, and the door 2 of the second door assembly is rotatably connected to the cabinet 1 to open or close the second storage space.

[0131] In this embodiment, by providing a first storage space and a second storage space on the housing 1, the items to be stored can be stored separately according to requirements. The first storage space and the second storage space are respectively provided with a first door assembly and a second door assembly, so that when the doors 2 of the first door assembly and the second door assembly are rotated and opened, the corresponding door panels 21 can slide relative to the doors 2 to avoid obstacles.

[0132] In one specific embodiment of this application, the first ball bearing 7141 and / or the second ball bearing 7071 of the first door assembly are provided in three sets, and the first ball bearing 7141 and / or the second ball bearing 7071 of the second door assembly are provided in four sets. The weight of the second door assembly is greater than the weight of the first door assembly.

[0133] In this embodiment, the first door assembly has three sets of first ball bearings 7141 and / or second ball bearings 7071 to support the lighter weight of the first door assembly, resulting in a more compact structure. The second door assembly has four sets of first ball bearings 7141 and / or second ball bearings 7071 to support the lighter weight of the first door assembly, resulting in a more stable and reliable structure.

[0134] Finally, it should be noted that the above embodiments are for illustrative purposes only and are not intended to limit the scope of this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of this application do not depart from the scope of the technical solutions of this application and should be covered by the scope of the claims of this application.

Claims

1. An active sliding door mechanism, applied to a refrigeration device, the refrigeration device comprising: The box body, the box door, and the door panel are provided, wherein the box door is rotatably mounted on the box body, and the outer side of the box door is provided with a door panel that can slide along it; The active sliding door mechanism includes: A first base is provided for mounting on the box door, and a first guide rail is formed on one side of the first base and a second guide rail is formed on the other side; The system includes a rolling element, a traction mechanism, a first slider, and a second slider. The first slider is fitted onto the first guide rail and connected to the housing via the traction mechanism. The first slider is slidably mounted on the first guide rail via the rolling element. The second slider is fitted onto the second guide rail and is used to connect to the door panel. The second slider is slidably mounted on the second guide rail via the rolling element. The connector has two ends that are respectively connected to the first slider and the second slider; When the first slider moves on the first guide rail, the first slider drives the second slider to move in the opposite direction on the second guide rail via the connector.

2. The active sliding door mechanism according to claim 1, wherein, A first rolling gap is formed between the first slider and the first guide rail, and a second rolling gap is formed between the second slider and the second guide rail; The rolling element includes a first ball and a second ball, wherein the first ball is rotatably disposed in the first rolling gap, and the second ball is rotatably disposed in the second rolling gap.

3. The active sliding door mechanism according to claim 2, wherein, Multiple rows of first rolling gaps are formed between the first slider and the first guide rail, and multiple rows of second rolling gaps are formed between the second slider and the second guide rail; The rolling element includes multiple sets of first balls and multiple sets of second balls, with each set of first balls disposed in each row of first rolling gaps and each set of second balls disposed in each row of second rolling gaps.

4. The active sliding door mechanism according to claim 3, wherein, Both the first and second rolling gaps have three rows, and both the first and second balls have three sets.

5. The active sliding door mechanism according to claim 4, wherein, The first guide rail has three first concave surfaces arranged sequentially along its circumference, and the first slider has a first groove formed therein. The sidewall of the first groove and the three first concave surfaces form three rows of first rolling gaps. The second guide rail has three second concave surfaces arranged sequentially along its circumference, and the second slider has a second groove formed therein. The sidewall of the second groove and the three second concave surfaces form three rows of second rolling gaps.

6. The active sliding door mechanism according to claim 3, wherein, Both the first and second rolling gaps have four rows, and both the first and second balls have four groups.

7. The active sliding door mechanism according to claim 1, wherein, The first guide rail and the second guide rail are arranged in parallel, and the first guide rail and the second guide rail are respectively arranged on two opposite sides of the first base.

8. The active sliding door mechanism according to any one of claims 2-7, wherein, The rolling element further includes: A first support frame is disposed between the first slider and the first guide rail. The first support frame has a first limiting notch at the position corresponding to the first rolling gap, and the first ball is disposed in the first limiting notch. The second support frame is disposed between the second slider and the second guide rail. The second support frame has a second limiting notch at the position corresponding to the second rolling gap, and the second ball is disposed in the second limiting notch.

9. A door assembly, comprising: The cabinet door is rotatably connected to the cabinet body and is suitable for opening or closing the storage space of the cabinet body; A door panel, slidably disposed on the outside of the cabinet door; and, The active sliding door mechanism as described in any one of claims 1-8 is disposed on the box door, the first slider is connected to the box body via the traction mechanism, and the second slider is connected to the door panel; During the opening or closing of the cabinet door, the first slider and the second slider move in opposite directions to drive the door panel to move relative to the width direction of the cabinet door.

10. The door assembly according to claim 9, wherein, The door assembly also includes: The driven sliding door mechanism includes a second base and a third slider; A third guide rail is formed on the second base, and the third slider is slidably disposed on the third guide rail and connected to the door panel.

11. A refrigeration device, comprising: The container forms multiple storage spaces; Multiple door components as described in claim 9 or 10, each door component corresponding to one of the storage spaces, to drive the door panel to move relative to the corresponding door during the opening or closing of any of the cabinet doors.

12. The refrigeration equipment according to claim 11, wherein, The box body forms a first storage space and a second storage space, and there are two door components, namely a first door component and a second door component; The door of the first door assembly is rotatably connected to the box body and is adapted to open or close the first storage space; the door of the second door assembly is rotatably connected to the box body and is adapted to open or close the second storage space.

13. The refrigeration equipment according to claim 12, wherein, The first door assembly has three sets of first and / or second balls, the second door assembly has four sets of first and / or second balls, and the weight of the second door assembly is greater than that of the first door assembly.

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