Door sliding mechanism, door assembly and refrigeration device

Abstract

The present application relates to the technical field of household appliances, and provides a door sliding mechanism, a door assembly, and a refrigeration device. The door sliding mechanism comprises: a base, a first sliding block, a second sliding block, and a connecting member. The base is provided on an appliance door, and a first guide rail and a second guide rail are respectively formed on two sides of the appliance door in the thickness direction. The first sliding block is slidably arranged on the first guide rail and is used for being transmittingly connected to an appliance body. The second sliding block is slidably arranged on the second guide rail and is used for being connected to a door panel. Two ends of the connecting member are respectively connected to the first sliding block and the second sliding block. During the process of opening or closing the appliance door, the first sliding block moves on the first guide rail, and the first sliding block drives, by means of the connecting member, the second sliding block to move on the second guide rail in an opposite direction, so as to drive the door panel to move relative to the width direction of the appliance door. In the door sliding mechanism of the present application, when the appliance door rotates, the two sliding blocks slide relative to each other to drive the door panel to slide relative to the appliance door, so that the door panel can avoid obstacles during the rotational opening / closing of the appliance door.

Description

Sliding door mechanism, door body components and refrigeration equipment

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese patent application No. 202411184235.0, filed on August 26, 2024, entitled "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 a 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 a sliding door mechanism, a door assembly, and a refrigeration device to solve the problem that the door assembly with a 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] A sliding door mechanism according to a first aspect of this application is applied to a refrigeration equipment and is disposed on a cabinet door. The cabinet door is rotatably connected to the cabinet body, and a door panel that can slide along the outside of the cabinet door is provided.

[0008] The sliding door mechanism includes:

[0009] A base is provided on the box door, and a first guide rail and a second guide rail are respectively formed on both sides along the thickness direction of the box door;

[0010] A first slider and a traction mechanism, wherein the first slider is slidably mounted on the first guide rail, and the first slider is connected to the housing via the traction mechanism;

[0011] The second slider is slidably mounted on the second guide rail for connecting with the door panel;

[0012] The connector has two ends that are respectively connected to the first slider and the second slider;

[0013] During the opening or closing of the cabinet door, the first slider moves along the first guide rail under the drive of the traction mechanism, and drives the second slider to move in the opposite direction on the second guide rail through the connector, so as to drive the door panel to move relative to the width direction of the cabinet door.

[0014] According to the sliding door mechanism of this application embodiment, the connecting member includes:

[0015] The first connector bypasses one end of the base and is connected at both ends to one end of the first slider and one end of the second slider, respectively.

[0016] The second connector bypasses the other end of the base and is connected at both ends to the other ends of the first slider and the second slider, respectively.

[0017] According to the sliding door mechanism of the embodiments of this application, the sliding door mechanism further includes:

[0018] A first fixed base is connected to one end of the 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 and the second guide rail. A portion of the first connecting member is slidably disposed in the first limiting groove.

[0019] The second fixed base is connected to the other end of the 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 and the second guide rail. A portion of the second connector is slidably disposed in the second limiting groove.

[0020] According to the sliding door mechanism of the present application embodiment, a rotatable support bearing is provided in the first limiting groove and / or the second limiting groove; a portion of the first connecting member is pressed onto the support bearing in the first limiting groove; and / or, a portion of the second connecting member is pressed onto the support bearing in the second limiting groove.

[0021] According to the sliding door mechanism of the present application embodiment, the first fixed seat and / or the second fixed seat are provided with a fixing hole, and the sliding door mechanism further includes a fixing member, which passes through the fixing hole to connect with an external structure.

[0022] According to the sliding door mechanism of the embodiments of this application, the sliding door mechanism further includes:

[0023] A first ball and a second ball; a first rolling gap is formed between the first slider and the first guide rail, and the first ball is rotatably disposed in the first rolling gap; a second rolling gap is formed between the second slider and the second guide rail, and the first ball is rotatably disposed in the second rolling gap.

[0024] According to the sliding door mechanism of the present application embodiment, the first ball and the second ball are provided in multiple sets, the first guide rail is provided with multiple first concave surfaces arranged sequentially along its circumference, the first slider is formed with a first groove, the sidewall of the first groove and the multiple first concave surfaces form multiple rows of first rolling gaps, and each set of the first ball is respectively arranged in the multiple rows of first rolling gaps.

[0025] The second guide rail has a plurality of second concave surfaces arranged sequentially along its circumference, and a second groove is formed on the second slider. The sidewall of the second groove and the plurality of second concave surfaces form a plurality of rows of second rolling gaps, and each group of second balls is respectively arranged in the plurality of rows of second rolling gaps.

[0026] According to the sliding door mechanism of this application embodiment, 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 base.

[0027] A door assembly according to a second aspect of this application includes:

[0028] The cabinet door is rotatably connected to the cabinet body and is suitable for opening or closing the storage space of the cabinet body;

[0029] A door panel, slidably disposed on the outside of the cabinet door; and,

[0030] As described in any of the above, the 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;

[0031] 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.

[0032] According to the door assembly of the embodiments of this application,

[0033] The traction mechanism includes a traction rod, a first rotating shaft fixing seat, and a second rotating shaft fixing seat;

[0034] The first rotating shaft fixing seat is connected to the first slider, the second rotating shaft fixing seat is used to connect to the box body, one end of the traction rod is rotatably connected to the first rotating shaft fixing seat, and the other end of the traction rod is rotatably connected to the second rotating shaft fixing seat.

[0035] According to the door assembly of the present application embodiment, the second slider is provided with a connecting block, and the connecting block has a slot for the door panel to be attached.

[0036] A refrigeration device according to a third aspect of this application includes:

[0037] The box-shaped structure forms a storage space;

[0038] As described in any of the above-mentioned door components, the cabinet door is rotatably connected to the cabinet and is adapted to open or close the storage space.

[0039] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects:

[0040] According to the sliding door mechanism of this application, a first guide rail and a second guide rail are provided on both sides of the base. A first slider and a second slider are slidably mounted on the first and second guide rails, respectively. The first slider and the second slider can slide synchronously along their respective guide rails under the cooperation of a connecting member and a rotating support member, and the sliding directions are opposite. The first slider is connected to the housing through a traction mechanism and a transmission connection with the housing. The second slider is connected to a door panel provided on the outer side of the housing door. So that when the housing door rotates, the housing drives the two sliders to slide relative to each other through the traction mechanism and the connecting member, thereby driving 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. The first slider and the second slider are arranged along the thickness direction of the housing door, which helps to reduce the size of the entire door assembly along the width or height direction of the housing door.

[0041] According to the door assembly of the present application embodiment, a sliding door mechanism is provided on the door. The sliding door mechanism is connected to the door and the door panel respectively. During the process of the door rotating to open or close relative to the box body, the box body drives two sliders to slide relative to each other through the traction mechanism and the connector, thereby driving the door panel to slide relative to the width direction of the door, so that the door panel can avoid obstacles such as side walls and objects during the closing or opening of the door.

[0042] According to the embodiments of this application, the refrigeration device, by combining the cabinet door and the door panel, avoids interference between the door panel and surrounding objects when opening and closing the refrigeration device, greatly improving ease of use. This design advantage is particularly evident in confined kitchen environments.

[0043] Furthermore, by setting a first ball between the first slider and the first guide rail, the friction between the two is converted into rolling friction, resulting in less friction, smoother sliding, and less wear. Similarly, by setting a first ball between the second slider and the second guide rail, the friction between the two is converted into rolling friction, resulting in less friction, smoother sliding, and less wear.

[0044] 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

[0045] 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.

[0046] Figure 1 is a schematic diagram of the sliding door mechanism provided in an embodiment of this application;

[0047] Figure 2 is a side view of the sliding door mechanism provided in an embodiment of this application;

[0048] Figure 3 is a schematic diagram of the refrigeration equipment provided in an embodiment of this application;

[0049] Figure 4 is a schematic diagram of the refrigeration equipment provided in the embodiment of this application with the door open outwards.

[0050] Reference numerals: 1. Box body; 2. Box door; 21. Door panel; 4. First hinge; 7. 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. Connecting block; 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; 716. Support bearing. Detailed Implementation

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] The sliding door mechanism, door assembly, and refrigeration device of this application are described below with reference to Figures 1 to 4. The 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.

[0057] In one embodiment of this application, as shown in Figures 1 to 3, a sliding door mechanism 7 is applied to a refrigeration device and is disposed on a door 2. The door 2 is rotatably connected to a housing 1, and a sliding door panel 21 is provided on the outer side of the door 2. The sliding door mechanism 7 includes: a base disposed on the door 2, with a first guide rail 710 and a second guide rail 705 respectively formed on both sides along the thickness direction of the door 2; a first slider 715 and a traction mechanism, wherein the first slider 715 is slidably disposed on the first guide rail 710; the first slider 715 is connected to the housing 1 through the traction mechanism; a second slider 709 is slidably disposed on the second guide rail 705 for connecting to the door panel 21; and a connector, with both ends connected to the first slider 715 and the second slider 709 respectively. During the opening or closing of the door 2, the first slider 715 moves along the first guide rail 710 under the drive of the traction mechanism, and drives the second slider 709 to move in the opposite direction on the second guide rail 705 through the connector, thereby driving the door panel 21 to move relative to the width direction of the door 2.

[0058] Understandably, the width direction of the door 2 is parallel to the plane on which the door 2 is located and perpendicular to the rotation axis of the door 2, so that the door panel 21 can move away from or close to the rotation axis of the door 2 (as shown by the double-headed arrows in Figure 4). 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.

[0059] In this embodiment, the base is set on the door 2. The first slider 715 is connected to the box body 1 through a traction mechanism. The second slider 709 is slidably connected to the door panel 21 on the outside of the door 2. The connecting parts can be traction ropes, transmission belts, or other connecting components. The two ends of the connecting parts are connected to the first slider 715 and the second slider 709 respectively. When the door 2 is opened or closed, the distance between the box body 1 and the door 2 changes, so that the box body 1 drives the first slider 715 to slide along the first guide rail 710 through the traction mechanism. The first slider 715 can pull the second slider 709 to move synchronously through the connecting parts, and make the two sliders slide relative to each other in opposite directions to drive the door panel 21 to slide relative to the door 2, so that the door panel 21 can avoid obstacles on both sides during the rotation and opening of the door 2.

[0060] 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.

[0061] Meanwhile, by setting the first guide rail 710 and the second guide rail 705 on both sides along the thickness direction of the door 2, and setting the first slider 715 and the second slider 709 along the thickness direction of the door 2, it is beneficial to reduce the size of the entire door assembly along the width or height direction of the door 2.

[0062] According to the 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 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 the guide rail under the drive of the connecting member, and the sliding direction is opposite. The first slider 715 and the box body 1 are connected by a traction mechanism. The second slider 709 is connected to the door panel 21 provided on the outside of the box door 2, so that when the box door 2 is rotated, the box body 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 box door 2, so that the door panel 21 can avoid obstacles on both sides during the rotation and opening of the box door 2.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] In one embodiment of this application, as shown in FIG1, the connector includes a first connector 706 and a second connector 712. The first connector 706 bypasses one end of the 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 base and its two ends are respectively connected to the other end of the first slider 715 and the second slider 709.

[0067] In this embodiment, by connecting the first connector 706 around one end of the base to the first slider 715 and the second slider 709 respectively, when the first slider 715 slides away from the 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 base through the first connector 706. At the same time, by connecting the second connector 712 around the other end of the base to the first slider 715 and the second slider 709 respectively, when the first slider 715 slides away from the 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 base through the second connector 712. This achieves that when the first slider 715 slides towards both ends of the base, it can drive the second slider 709 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, thus avoiding interference with obstacles and affecting the opening and closing of the door 2.

[0068] In one embodiment of this application, as shown in FIG1, the 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 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 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.

[0069] In this embodiment, by providing a first fixing seat 704 and a second fixing seat 711 at both ends of the 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 connecting member 706 and the second connecting member 712, making the sliding of the first connecting member 706 and the second connecting member 712 smoother and more stable.

[0070] Furthermore, in some embodiments, a rotatable support bearing 716 is provided in the first limiting groove; a portion of the first connecting member 706 abuts against the support bearing 716 in the first limiting groove.

[0071] In this embodiment, by abutting a portion of the first connector 706 against the support bearing 716, the movement of the first connector 706 and its extension direction can be adjusted, making it convenient to connect the end of the first connector 706 that bypasses the base to the first slider 715 and the second slider 709.

[0072] It is understandable that a rotatable support bearing 716 may also be provided in the second limiting groove; a portion of the second connecting member 712 abuts against the support bearing 716 in the second limiting groove so as to adjust the extension direction of the second connecting member 712 and facilitate connecting the end of the second connecting member 712 that passes around the base to the first slider 715 and the second slider 709.

[0073] Specifically, in one embodiment of this application, the first fixing seat 704 is provided with a fixing hole. The sliding door mechanism 7 also includes a fixing member that passes through the fixing hole to connect with an external structure.

[0074] In this embodiment, by providing a fixing hole on the first fixing seat 704 and passing the fixing member through the fixing hole to fix it in the external structure, the first fixing seat 704 is fixed in the external structure, thereby fixing the base to the external structure (such as the box door 2).

[0075] Understandably, the second fixed seat 711 is provided with a fixing hole. The sliding door mechanism 7 also includes a fixing member that passes through the fixing hole to connect with the external structure.

[0076] In this embodiment, by providing a fixing hole on the second fixing seat 711 and passing the fixing member through the fixing hole to fix it in the external structure, the second fixing seat 711 is fixed in the external structure, thereby fixing the base to the external structure (such as the box door 2).

[0077] In one embodiment of this application, as shown in FIG2, the sliding door mechanism 7 further includes a first ball bearing 7141 and a second ball bearing 7071. A first rolling gap is formed between the first slider 715 and the first guide rail 710, and the first ball bearing 7141 is rotatably disposed in the first rolling gap. A second rolling gap is formed between the second slider 709 and the second guide rail 705, and the second ball bearing 7071 is rotatably disposed in the second rolling gap.

[0078] 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.

[0079] In one embodiment of this application, as shown in FIG2, multiple sets of first ball bearings 7141 and second ball bearings 7071 are provided. A first guide rail 710 has multiple first concave surfaces arranged sequentially along its circumference. A first slider 715 has a first groove formed therein. The sidewall of the first groove and the multiple first concave surfaces form multiple rows of first rolling gaps. Each set of first ball bearings 7141 is respectively disposed in the multiple rows of first rolling gaps. A second guide rail 705 has multiple second concave surfaces arranged sequentially along its circumference. A second slider 709 has a second groove formed therein. The sidewall of the second groove and the multiple second concave surfaces form multiple rows of second rolling gaps. Each set of second ball bearings 7071 is respectively disposed in the multiple rows of second rolling gaps.

[0080] 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.

[0081] 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.

[0082] In one embodiment of this application, as shown in FIG2, the sliding door mechanism 7 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. The first support frame 714 is provided with a first limiting notch at a position corresponding to the first rolling gap, and a first ball bearing 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. The second support frame 707 is provided with a second limiting notch at a position corresponding to the second rolling gap, and a second ball bearing 7071 is disposed in the second limiting notch.

[0083] 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.

[0084] 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 base.

[0085] 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 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 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.

[0086] In another embodiment of this application, as shown in Figures 1, 3, and 4, a door assembly is provided, including: a door 2, a door panel 21, and a 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 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.

[0087] In this embodiment, during the process of the door 2 rotating outwards to open towards the outside of the box body 1 (as shown by the arc arrow in Figure 4), 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 towards one side of the box body 1, the sliding door mechanism 7 drives the door panel 21 to slide towards the first hinge 4, thereby avoiding interference between the closed door panel 21 and obstacles. At the same time, by setting the first guide rail 710 and the second guide rail 705 on both sides of the base along the thickness direction of the door 2, the first slider 715 and the second slider 709 are distributed along the thickness direction of the door 2, which helps to reduce the size of the door assembly in the width or height direction of the door 2.

[0088] According to the door assembly of the present application embodiment, a sliding door mechanism 7 is provided on the door 2. The sliding door mechanism 7 is connected to the door 2 and the door panel 21 respectively, so that when the door 2 rotates to open or close relative to the box body 1, the door panel 21 is driven to slide relative to the width direction of the door 2, so that the door panel 21 can avoid obstacles such as side walls and objects when the door 2 is closed or opened.

[0089] It is understood that if the sliding door mechanism 7 has the beneficial effects of the above embodiments, then 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.

[0090] In one embodiment of this application, as shown in Figures 1, 3, and 4, 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.

[0091] 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, so that the first slider 715 slides on the base and drives the second slider 709 to slide, so as to realize the movement of the door panel 21 relative to the box door 2.

[0092] 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.

[0093] In one embodiment of this application, as shown in FIG1, the second slider 709 is provided with a connecting block 708, and the connecting block 708 has a slot for the door panel 21 to be attached.

[0094] In this embodiment, by setting a connecting block 708 on the second slider 709 and setting a slot on the connecting block 708 for hooking with the door panel 21, it is convenient for the user to install the door panel 21 on the connecting block 708, so that when the second slider 709 slides, it can drive the door panel 21 to slide relative to the box door 2.

[0095] In another embodiment of this application, as shown in Figures 1, 3, and 4, 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 storage space, and a door 2 is rotatably connected to the housing 1, adapted to open or close the storage space.

[0096] In this embodiment, the door assembly includes: a door 2, a door panel 21, and a sliding door mechanism 7. The 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.

[0097] 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.

[0098] Meanwhile, when the cabinet door 2 rotates, the 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.

[0099] The combination of door 2 and door panel 21 prevents interference between the door panel 21 and surrounding objects when the refrigeration unit is opened and closed, greatly improving ease of use. This design advantage is particularly evident in confined kitchen environments. Furthermore, the slider and guide rails within the sliding door mechanism 7 allow the door panel 21 to move smoothly and easily during opening and closing, improving the refrigerator's lifespan and stability, while also helping to reduce the dimensions of the door components and the refrigerator in the height or width directions.

[0100] 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.

[0101] Understandably, there can be multiple storage spaces.

[0102] 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.

[0103] As shown in Figure 4, 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 outer wall of the cabinet. When the door 2 is closed, the door panel 21 is flush with the outer wall of the cabinet at the edge of the slotted structure opening, and fits as close as possible to the opening of the slotted structure, so that the door panel 21 and the outer wall of the cabinet maintain visual consistency and have minimal gaps, making it more aesthetically pleasing.

[0104] When the cabinet door 2 is rotated outward to open, the 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 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.

[0105] In one embodiment of this application, the cabinet 1 has a first storage space and a second storage space. Two door assemblies are provided, including 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.

[0106] 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.

[0107] 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. A sliding door mechanism, applied to refrigeration equipment, disposed on a cabinet door, the cabinet door being rotatably connected to a cabinet body, and a door panel that can slide along the outer side of the cabinet door; The sliding door mechanism includes: A base is provided on the box door, and a first guide rail and a second guide rail are respectively formed on both sides along the thickness direction of the box door; A first slider and a traction mechanism, wherein the first slider is slidably mounted on the first guide rail; the first slider is connected to the housing via the traction mechanism; The second slider is slidably mounted on the second guide rail for connecting with the door panel; The connector has two ends that are respectively connected to the first slider and the second slider; During the opening or closing of the cabinet door, the first slider moves along the first guide rail under the drive of the traction mechanism, and drives the second slider to move in the opposite direction on the second guide rail through the connector, so as to drive the door panel to move relative to the width direction of the cabinet door.

2. The sliding door mechanism according to claim 1, wherein, The connector includes: The first connector bypasses one end of the base and is connected at both ends to one end of the first slider and one end of the second slider, respectively. The second connector bypasses the other end of the base and is connected at both ends to the other ends of the first slider and the second slider, respectively.

3. The sliding door mechanism according to claim 2, wherein, The sliding door mechanism also includes: A first fixed base is connected to one end of the 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 and the second guide rail. A portion of the first connecting member is slidably disposed in the first limiting groove. The second fixed base is connected to the other end of the 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 and the second guide rail. A portion of the second connector is slidably disposed in the second limiting groove.

4. The sliding door mechanism according to claim 3, wherein, The first limiting groove and / or the second limiting groove are provided with rotatable support bearings; a portion of the first connecting member is pressed onto the support bearing in the first limiting groove; and / or, a portion of the second connecting member is pressed onto the support bearing in the second limiting groove.

5. The sliding door mechanism according to claim 3, wherein, The first fixing seat and / or the second fixing seat are provided with fixing holes, and the sliding door mechanism also includes a fixing member, which passes through the fixing hole to connect with an external structure.

6. The sliding door mechanism according to any one of claims 1-5, wherein, The sliding door mechanism also includes: A first ball and a second ball; a first rolling gap is formed between the first slider and the first guide rail, and the first ball is rotatably disposed in the first rolling gap; a second rolling gap is formed between the second slider and the second guide rail, and the first ball is rotatably disposed in the second rolling gap.

7. The sliding door mechanism according to claim 6, wherein, The first ball and the second ball are provided in multiple sets. The first guide rail is provided with multiple first concave surfaces arranged sequentially along its circumference. The first slider is formed with a first groove. The sidewall of the first groove and the multiple first concave surfaces form multiple rows of first rolling gaps. Each set of the first ball is respectively arranged in the multiple rows of first rolling gaps. The second guide rail has a plurality of second concave surfaces arranged sequentially along its circumference, and a second groove is formed on the second slider. The sidewall of the second groove and the plurality of second concave surfaces form a plurality of rows of second rolling gaps, and each group of second balls is respectively arranged in the plurality of rows of second rolling gaps.

8. The 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 base.

9. A door assembly, wherein, include: 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 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 traction mechanism includes a traction rod, a first rotating shaft fixing seat, and a second rotating shaft fixing seat; The first rotating shaft fixing seat is connected to the first slider, the second rotating shaft fixing seat is used to connect to the box body, one end of the traction rod is rotatably connected to the first rotating shaft fixing seat, and the other end of the traction rod is rotatably connected to the second rotating shaft fixing seat.

11. The door assembly according to claim 9, wherein, The second slider is provided with a connecting block, and the connecting block has a slot for the door panel to be hung.

12. A refrigeration device, comprising: The box-shaped structure forms a storage space; The door assembly as described in any one of claims 9-11, wherein the cabinet door is rotatably connected to the cabinet and is adapted to open or close the storage space.

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