Door body device and refrigeration equipment

Abstract

The invention relates to the technical field of refrigeration equipment, and provides a door body device and refrigeration equipment, and the door body device comprises a box door, a cabinet door and a sliding door mechanism. The box door is rotationally connected to the box body and is suitable for opening or closing the storage space of the box body; the cabinet door is slidably arranged on the outer side of the box door; the sliding door mechanism comprises a traction assembly and a sliding door assembly, the traction assembly is arranged between the box body and the sliding door assembly, the sliding door assembly is arranged on the box door and connected with the cabinet door, and the traction assembly is configured to drive the sliding door assembly to act in the opening or closing process of the box door so as to drive the cabinet door to move relative to the box door. After the door body device is installed on a box body of the refrigeration equipment, when the box door rotates, the sliding door mechanism can drive the cabinet door to move in the width direction of the box door, and therefore when the refrigeration equipment and the cabinet are placed in an embedded mode, the cabinet door can be conveniently installed on the cabinet door under the condition that coordination and attractiveness are ensured and the use experience of a user is not affected. Interference between the cabinet door and the cabinet can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to a door device and refrigeration equipment. Background Art

[0002] Currently, refrigerators are essential appliances for almost every household. Most of the existing refrigerators are upright cabinet type. Whether in the kitchen or the living room, the placement of the refrigerator requires a certain amount of space. In order to save space, some existing refrigerators are embedded in cabinets.

[0003] like Figure 1 As shown, in order to further improve coordination and aesthetics, some refrigerators 10 that are placed in an embedded manner will add a decorative plate 30 on the outside of the refrigerator door 11, and make the decorative plate 30 flush with the cabinet 20 on the side of the refrigerator 10. However, in actual use, Figure 2 As shown, the gap between the refrigerator 10 and the cabinet 20 is small, and the decorative panel 30 and the cabinet 20 will interfere with each other during the process of opening the refrigerator door 11. In order to avoid the interference, the usual treatment method is generally to reduce the door opening angle or increase the distance between the cabinet 20 and the side of the refrigerator 10. However, these methods affect the coordination and aesthetics, and affect the user experience. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned background technology, the present invention provides a door device and a refrigeration device, which are used to avoid the problem of interference between the decorative panel and the cabinet during the process of opening the refrigerator door while ensuring coordination and aesthetics and not affecting the user's experience.

[0005] According to a first aspect of the present invention, there is provided a door device, comprising: A box door, rotatably connected to the box body, suitable for opening or closing the storage space of the box body; A cabinet door, which is slidably arranged on the outer side of the box door; The sliding door mechanism includes a traction assembly and a sliding door assembly, wherein the traction assembly is arranged between the box body and the sliding door assembly, the sliding door assembly is arranged on the box door and connected to the cabinet door, and the traction assembly is configured to drive the sliding door assembly to move during the opening or closing process of the box door, thereby driving the cabinet door to move relative to the box door.

[0006] According to a door device provided by the present invention, the traction assembly includes a driving tooth portion and a fixed tooth portion, the fixed tooth portion is suitable for being arranged on the box body, the driving tooth portion is arranged on the sliding door assembly, and the fixed tooth portion is meshed and connected with the driving tooth portion.

[0007] According to a door body device provided by the present invention, the traction assembly also includes a transmission gear set, the transmission gear set is rotatably arranged on the box door, and the fixed tooth portion is meshed and connected with the driving tooth portion through the transmission gear set.

[0008] According to a door body device provided by the present invention, the transmission gear group includes a first gear, a second gear and a third gear, the first gear is meshed and connected with the fixed tooth portion, the second gear is coaxially connected with the third gear, and the second gear is meshed and connected with the first gear, and the third gear is meshed and connected with the driving tooth portion.

[0009] According to a door body device provided by the present invention, the sliding door assembly comprises: The winding assembly comprises a winding drum and a reversing wheel, wherein the winding drum and the reversing wheel are arranged at intervals; A sliding member, the sliding member is arranged between the winding drum and the reversing wheel; A rope assembly comprises a first rope and a second rope, wherein the first rope is wound around the winding drum along a first direction, the free end of the first rope is fixed to the sliding member after passing around the reversing wheel, and the second rope is wound around the winding drum along a second direction, the first direction and the second direction are opposite, and the free end of the second rope is fixed to the sliding member; the traction assembly is connected to the winding drum, and the sliding member is connected to the cabinet door, and during the process of opening or closing the cabinet door, the traction assembly drives the winding drum to rotate, and then drives the cabinet door to move relative to the cabinet door through the sliding member.

[0010] According to a door body device provided by the present invention, in a case where the traction assembly includes a driving tooth portion, the driving tooth portion is coaxially and fixedly connected to the winding drum.

[0011] According to a door device provided by the present invention, the box door is suitable for being rotatably connected to the box body through a hinge, the hinge includes a hinge plate, and the fixed tooth portion is arranged on a side of the hinge plate facing the box door.

[0012] According to a door device provided by the present invention, the fixed tooth portion is an arc-shaped rack, gear teeth are arranged at the concave surface of the arc-shaped rack, and the driving tooth portion is meshedly connected with the gear teeth.

[0013] According to a door device provided by the present invention, the winding drum comprises a first winding drum and a second winding drum which are stacked, the first rope is wound around the first winding drum along a first direction, and the second rope is wound around the second winding drum along a second direction.

[0014] According to a door device provided by the present invention, the first rope and the second rope are arranged on the winding drum at intervals along the height direction of the winding drum, and the free end of the first rope and the free end of the second rope are located at different heights at the connection position of the sliding member.

[0015] According to a second aspect of the present invention, there is provided a refrigeration device, comprising: A box body is formed with a storage space; As in the door device according to any one of the first aspects of the present invention, the box door is rotatably connected to the box body, and is suitable for opening or closing the storage space of the box body.

[0016] The door body device provided by the present invention comprises a box door, a cabinet door and a sliding door mechanism, wherein the box door can be rotatably connected to the box body, the cabinet door is slidably provided on the outer side of the box door, and the sliding door mechanism can drive the cabinet door to move along the width direction of the box door during the process of opening or closing the box door. In actual use, after the door body device is installed on the box body of the refrigeration equipment, when the box door rotates relative to the box body to open or close the storage space of the box body, the sliding door mechanism can drive the cabinet door to move relative to the box door in the width direction of the box door, so that when the refrigeration equipment and the cabinet are placed in an embedded manner, the cabinet door and the cabinet can be prevented from interfering with each other during the process of opening the box door while ensuring coordination and aesthetics and not affecting the user's use experience.

[0017] In addition to the technical problems solved by the present invention, the technical features of the technical solutions constituted, and the advantages brought by the technical solutions with these technical features described above, other technical features of the present invention and the advantages brought by these technical features will be further explained in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a refrigerator in the related art that is placed together with a cabinet in an embedded manner, wherein a decorative panel is provided on the outside of the refrigerator door and the refrigerator door is in a closed position.

[0020] Figure 2 It is a structural schematic diagram of a refrigerator in the related art that is placed together with a cabinet in an embedded manner, wherein a decorative panel is provided on the outside of the refrigerator door and the refrigerator door is in an open position.

[0021] Figure 3 It is a schematic structural diagram of a refrigeration device provided with a door device according to one embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the partial structure of a door device according to one embodiment of the present invention.

[0023] Figure 5 It is a schematic structural diagram of a sliding door mechanism in a door device according to one embodiment of the present invention.

[0024] Figure 6 It is a partial structural schematic diagram of a sliding door mechanism in a door device according to one embodiment of the present invention.

[0025] Figure 7 It is an exploded schematic diagram of a partial structure of a sliding door mechanism in a door device according to one embodiment of the present invention.

[0026] Figure 8 It is a structural schematic diagram from another perspective of a partial structure of a sliding door mechanism in a door device according to an embodiment of the present invention.

[0027] Fig. 9 It is a schematic structural diagram of an upper shell in a guide rail of a door device according to one embodiment of the present invention.

[0028] Fig.10 It is a schematic structural diagram of a lower shell in a guide rail of a door device according to one embodiment of the present invention.

[0029] Fig.11 It is a schematic structural diagram of a sliding portion in a sliding member in a sliding door assembly of a door device according to one embodiment of the present invention.

[0030] Fig.12 It is a schematic structural diagram of the door device during installation according to one embodiment of the present invention.

[0031] Fig.13 It is a structural schematic diagram from another perspective of the installation of the door device according to one embodiment of the present invention.

[0032] Fig.14 It is a schematic diagram of the structure of a protective shell of a door device according to one embodiment of the present invention.

[0033] Fig.15 It is a schematic diagram of the installation of the sliding mechanism of the door device according to one embodiment of the present invention.

[0034] Reference numerals: 10. Refrigerator; 11. Refrigerator door; 20. Cabinet; 30. Decorative panel; 100, cabinet door; 110, cabinet body; 111, hinge plate; 120, base; 130, protective shell; 131, through groove; 200, cabinet door; 210, avoidance groove; 220, recessed part; 300, sliding door mechanism; 310, traction assembly; 311, driving gear; 3111, driving gear; 3112, connecting shaft; 312, fixed gear; 313, transmission gear set; 3131, first gear; 3132, second gear; 3133, third gear; 320, sliding door assembly; 331, winding drum; 3311, first winding drum; 3312, second winding drum; 3313, first partition; 3314, second partition; 3315, third partition; 3316, fastener; 332, reversing wheel; 340, sliding Component; 341, sliding part; 3411, mounting groove; 3412, conducting hole section; 3413, limiting hole section; 3414, receiving groove; 342, connecting part; 351, first rope; 352, second rope; 400, guide rail; 410, upper shell; 411, guide groove; 420, lower shell; 500, connecting assembly; 510, first connecting member; 520, second connecting member; 521, connecting plate; 522, matching plate; 600, sliding mechanism; 610, pulley assembly; 611, pulley; 612, mounting seat; 6121, first plate portion; 6122, second plate portion; 6123, third plate portion; 613, pin shaft; 620, slide rail assembly; 621, track component; 710, first cabinet; 720, second cabinet. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0037] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0038] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0040] In one embodiment of the present invention, a door device and a refrigeration device are provided. The door device is used for the refrigeration device. The door device includes a box door, a cabinet door and a sliding door mechanism. When the refrigeration device is placed together with the cabinet in an embedded manner or directly placed in the cabinet, a cabinet door is slidably provided on the outer side of the box door. When the box door is closed, the cabinet door can be flush with the door panel of the cabinet to ensure coordination and aesthetics. When the box door is opened, the sliding door mechanism can drive the cabinet door to move to avoid interference between the cabinet door and the door panel of the cabinet, which can enhance the user experience. Figures 3 to 15 The figure further describes the door device and refrigeration equipment in this embodiment.

[0041] Specifically, if Figure 3 and Figure 4As shown, the door device in this embodiment includes: a box door 100, a cabinet door 200 and a sliding door mechanism 300.

[0042] Among them, the box door 100 is rotatably connected to the box body 110, suitable for opening or closing the storage space of the box body 110; the cabinet door 200 is slidably arranged on the outside of the box door 100; the sliding door mechanism 300 includes a traction component 310 and a sliding door component 320, the traction component 310 is arranged between the box body 110 and the sliding door component 320, the sliding door component 320 is arranged on the box door 100 and connected to the cabinet door 200, and the traction component 310 is configured to drive the sliding door component 320 to move during the process of opening or closing the box door 100, thereby driving the cabinet door 200 to move relative to the box door 100.

[0043] It can be understood that the door device in this embodiment can be used for a refrigeration device such as a refrigerator, wherein the refrigeration device includes a box body 110, and the box body 110 is formed with a storage space, and the storage space can be used to place vegetables, fruits and other items that need to be refrigerated or frozen. Optionally, a refrigeration device is also provided in the box body 110 of the refrigeration device, and the refrigeration device can refrigerate the storage space.

[0044] In this embodiment, the door 100 in the door device is rotatably set on the body 110 of the refrigeration equipment. The door 100 can be used to realize the opening or closing of the storage space in the body 110. When the door 100 is in the closed position to close the storage space, the storage space is in a closed state, and the items in the storage space can be refrigerated. When the door 100 is in the open position to open the storage space, the storage space is in an open state, and the user can take out the items in the storage space.

[0045] In order to conveniently describe the positional relationship between the various components, in this embodiment, Figure 3 As shown, the box body 110 is roughly constructed as a rectangular structure with a certain height. The box body 110 can be placed on a horizontal plane. The box body 110 has a height direction, a width direction and a thickness direction that are perpendicular to each other, wherein the height direction of the box body 110 is parallel to the vertical direction, and the width direction and the thickness direction are located in the horizontal plane and are perpendicular to each other.

[0046] A storage space is provided inside the box body 110, and an opening is provided on the side of the box body 110 in the thickness direction, which is connected to the storage space. The box door 100 is connected to the side of the box body 110 in the thickness direction where the opening is provided. The box door 100 is extended along the width direction of the box body 110. The box door 100 is connected to a rotating shaft extending in the vertical direction on one side of the width direction of the box body 110. The box door 100 can be rotatably connected to the box body 110 via the rotating shaft, so that the box door 100 can open or close the storage space of the box body 110.

[0047] Moreover, the door 100 is generally constructed as a flat plate structure with a certain thickness, and the box body 110 has a height direction, a width direction, and a thickness direction that are perpendicular to each other, wherein the height direction of the box body 110 is parallel to the vertical direction, and the width direction and the length direction are located in the horizontal plane and are perpendicular to each other. One side of the door 100 in the width direction can be connected to the box body 110 via a rotating shaft. For example, Figure 3 As shown, the cabinet door 100 is connected to a rotation shaft on the right side of the cabinet body 110 in the width direction, and the cabinet door 100 can be rotatably connected to the cabinet body 110 via the rotation shaft.

[0048] When the door 100 is in a position to close the storage space of the housing 110 , the width direction of the door 100 is parallel to the width direction of the housing 110 , and the thickness direction of the door 100 is parallel to the thickness direction of the housing 110 .

[0049] Furthermore, the cabinet door 200 can be a decorative door panel. The cabinet door 200 is constructed as a flat structure with a certain thickness. The cabinet door 200 is connected to the outer side of the cabinet door 100 that is away from the cabinet body 110. When the refrigeration equipment is placed together with the cabinet in an embedded manner or directly placed in the cabinet, when the cabinet door 100 is in a closed position, the cabinet door 200 can be flush with the door panel of the cabinet, that is, the outer wall surface of the cabinet door 200 that is away from the cabinet door 100 can be flush with the outer wall surface of the cabinet.

[0050] In actual usage scenarios, the outer wall surface of the cabinet door 200 can be selected with the same material and shape as the outer wall surface of the cabinet, and can be attached with the same decoration, so that the refrigeration equipment can be sufficiently coordinated with the cabinet and can ensure aesthetics.

[0051] When the door device in this embodiment is installed on the cabinet 110 of the refrigeration equipment, when the cabinet door 100 rotates relative to the cabinet 110 to open or close the storage space of the cabinet 110, the sliding door mechanism 300 can drive the cabinet door 200 to move relative to the cabinet door 100 in the width direction of the cabinet door 100, so that when the refrigeration equipment and the cabinet are placed in an embedded manner, the cabinet door 200 can be prevented from interfering with the cabinet during the process of opening the cabinet door 100 while ensuring coordination and aesthetics and not affecting the user's experience.

[0052] In one embodiment, Figure 3 As shown, the door device, the box body 110 and the cabinet door 200 are used to be arranged in the installation space formed between the first cabinet body 710 and the second cabinet body 720; when the cabinet door 100 is opened or closed, the sliding door mechanism 300 is configured to drive the cabinet door 200 to move a preset distance on the cabinet door 100 so that the cabinet door 200 avoids the side walls of the first cabinet body 710 and the second cabinet body 720; Alternatively, the door device and the box body 110 are used to be set in a cabinet; during the opening or closing process of the box door 100, the sliding door mechanism 300 is configured to drive the cabinet door 200 to move a preset distance on the box door 100 so that the cabinet door 200 avoids the side wall of the cabinet.

[0053] It can be understood that the refrigeration device includes a door device and a box body 110 .

[0054] In practice, Figure 3 As shown, when the refrigeration equipment having the door device and the cabinet 110 is placed between the adjacent first cabinet 710 and the second cabinet 720, the cabinet door 200 may be provided on the outer side of the cabinet door 100 in the door device, and the cabinet door 200 may be movable relative to the cabinet door 100 along the width direction of the cabinet door 100. Optionally, when the cabinet door 100 is in a state of closing the storage space of the cabinet 110, the outer wall surface of the cabinet door 200 that is away from the cabinet door 100 may be flush with the outer wall surfaces of the first cabinet 710 and the second cabinet 720, and the outer wall surfaces of the first cabinet 710 and the second cabinet 720 and the outer wall surface of the cabinet door 200 that is away from the cabinet door 100 are in the same direction in the thickness direction of the cabinet 110.

[0055] At this time, during the rotation of the cabinet door 100 relative to the cabinet body 110 , the sliding door mechanism 300 can drive the cabinet door 200 to move, so that the cabinet door 200 avoids the side walls of the first cabinet body 710 and the second cabinet body 720 .

[0056] Alternatively, after the refrigeration device is placed in the cabinet, a cabinet door 200 may be provided outside the cabinet door 100 of the door device, and the cabinet door 200 may be movable relative to the cabinet door 100. Optionally, when the cabinet door 100 is in a state of closing the storage space of the cabinet 110, the outer wall surface of the cabinet door 200 that is away from the cabinet door 100 may be flush with the outer wall surface of the cabinet, and the outer wall surface of the cabinet and the outer wall surface of the cabinet door 200 that is away from the cabinet door 100 are in the same direction in the thickness direction of the cabinet 110.

[0057] At this time, during the process of the cabinet door 100 rotating relative to the cabinet body 110 , the sliding door mechanism 300 can drive the cabinet door 200 to move, so that the cabinet door 200 avoids the side wall of the cabinet body.

[0058] Further, in the sliding door mechanism 300 of the present embodiment, the traction assembly 310 is connected between the box body 110 and the sliding door assembly 320, the sliding door assembly 320 is arranged on the box door 100, and the sliding door assembly 320 is connected between the box door 100 and the cabinet door 200. When the box door 100 rotates relative to the box body 110, the traction assembly 310 can drive the sliding door assembly 320 to move, thereby driving the cabinet door 200 to move relative to the box door 100.

[0059] As a specific implementation method, the hinge includes a hinge plate and a hinge shaft arranged on the hinge plate, the hinge plate is arranged on the box body 110, and the box door 100 is rotatably arranged on the box body through the hinge shaft; the traction assembly 310 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 sliding door assembly, and the second rotating shaft fixing seat is connected to the hinge plate, 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; during the process of opening or closing the box door 100, the traction rod drives the sliding door assembly to move, thereby driving the cabinet door 200 to move relative to the width direction of the box door 100.

[0060] The sliding door assembly includes: a first base, a first slider, a second slider and a connecting member, 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 first slider is slidably arranged on the first guide rail, and the first shaft fixing seat is connected to the first slider; the second slider is slidably arranged on the second guide rail and is connected to the cabinet door 200; the two ends of the connecting member are respectively connected to the first slider and the second slider; during the process of opening or closing the cabinet door 100, the traction rod drives the first slider to move on the first guide rail, and the first slider drives the second slider to move in the opposite direction on the second guide rail through the connecting member. The connecting member includes: a first connecting member and a second connecting member, the first connecting member bypasses one end of the first base, and the two ends are respectively connected to one end of the first slider and the second slider; the second connecting member bypasses the other end of the first base, and the two ends are respectively connected to the other end of the first slider and the second slider.

[0061] Exemplarily, the traction assembly 310 can obtain a rotational driving force based on the rotation of the box door 100 relative to the box body 110, and the sliding door assembly 320 can obtain the rotational driving force and generate a translational driving force, and then the sliding door assembly 320 can use the translational driving force to drive the cabinet door 200 to translate relative to the box door 100.

[0062] Optionally, the cabinet door 200 may be slidably connected to the box door 100 by means of a structure such as a linear guide rail, and may be movable along the width direction of the box door 100 .

[0063] As a specific implementation, the box door 100 is rotatably connected to the box body 110 via a hinge shaft, and the hinge shaft is fixedly connected to the box body 110, the traction assembly 310 may include a gear set, the sliding door assembly 320 includes a driven wheel and a rack, the gear set includes a plurality of gears meshing with each other, one gear in the gear set is fixedly arranged on the hinge shaft, and the gear is coaxially arranged with the hinge shaft, and the other gears in the gear set are rotatably arranged on the box door 100 and also mesh with the driven wheel, the driven wheel is rotatably arranged on the box door 100, and the rack is extended along the width direction of the box door 100 and arranged on the cabinet door 200. At this time, in the process of the box door 100 rotating relative to the box body 110, the box door 100 also rotates synchronously relative to the rotating shaft, the gear set can rotate relative to the rotating shaft and can drive the driven wheel to rotate, and the driven wheel drives the rack to move in the width direction of the box door 100, so that the cabinet door 200 moves relative to the box door 100.

[0064] It can be understood that the above implementation method is only an exemplary description. The traction assembly 310 can mainly obtain the rotational driving force according to the rotation of the cabinet door 100, and the sliding door assembly 320 can obtain the rotational driving force and convert it into a translational driving force to drive the cabinet door to move. Other methods can also be adopted in actual applications.

[0065] In actual use, after the door device in this embodiment is installed on the cabinet body 110 of the refrigeration equipment, during the rotation of the cabinet door 100 relative to the cabinet body 110, the sliding door assembly 320 can move the cabinet door 200 relative to the cabinet door 100 under the drive of the traction assembly 310, so that when the refrigeration equipment and the cabinet are placed in an embedded manner, while ensuring coordination and aesthetics and not affecting the user's experience, the cabinet door 200 can be prevented from interfering with the cabinet during the process of opening the cabinet door 100.

[0066] Further, in this embodiment, if Figure 4 and Figure 5 As shown, the traction assembly 310 includes a driving tooth portion 311 and a fixed tooth portion 312 . The fixed tooth portion 312 is suitable for being arranged on the box body 110 . The driving tooth portion 311 is arranged on the sliding door assembly 320 . The fixed tooth portion 312 is meshedly connected with the driving tooth portion 311 .

[0067] Exemplarily, in order to enable the traction assembly 310 to normally drive the sliding door assembly 320 to move, the fixed tooth portion 312 is fixedly arranged on the box body 110. The fixed tooth portion 312 has a plurality of gears, and the driving tooth portion 311 is arranged on the sliding door assembly 320. The driving tooth portion 311 also has a plurality of gears, and the gears in the fixed tooth portion 312 and the gears in the driving tooth portion 311 form a meshing connection.

[0068] In actual use, after the door device in this embodiment is installed on the box body 110 of the refrigeration equipment, during the rotation of the box door 100 relative to the box body 110, the fixed tooth portion 312 remains in place, and the driving tooth portion 311 can move with the box door 100. At the same time, under the meshing relationship between the fixed tooth portion 312 and the driving tooth portion 311, the driving tooth portion 311 can also rotate. At this time, during the rotation of the driving tooth portion 311, the sliding door assembly 320 can use the rotational driving force generated by the rotation of the driving tooth portion 311 to obtain a translational driving force, thereby driving the box door 100 to move relative to the cabinet door 200. Among them, the sliding door assembly 320 includes a rack, which is slidably arranged on the box door 100 and connected to the cabinet door 200, and the driving tooth portion 311 is meshed and connected with the rack. In addition, the rack can be slidably arranged on the box door 100 through a guide rail.

[0069] In one embodiment, Figure 4 and Figure 5 As shown, the traction assembly 310 further includes a transmission gear set 313 , which is rotatably disposed on the door 100 , and the fixed tooth portion 312 is meshedly connected with the driving tooth portion 311 via the transmission gear set 313 .

[0070] Exemplarily, in order to ensure that the fixed tooth portion 312 can effectively drive the driving tooth portion 311 to rotate, the fixed tooth portion 312, the transmission gear set 313 and the driving tooth portion 311 are meshed and connected in sequence. During the rotation process, the fixed tooth portion 312 can drive the driving tooth portion 311 to rotate through the transmission gear set 313. Thereafter, the driving tooth portion 311 can generate a rotational driving force to drive the sliding door assembly 320 to move, thereby driving the cabinet door 200 to move relative to the box door 100.

[0071] Furthermore, if Figure 3 and Figure 4 As shown, the box door 100 is suitable for being rotatably connected to the box body 110 via a hinge, the hinge includes a hinge plate 111 , and the fixed tooth portion 312 is arranged on a side of the hinge plate 111 facing the box door 100 .

[0072] Exemplarily, the first end of the hinge plate 111 is provided with a plurality of mounting holes, and the second end is provided with a fixing tooth portion 312. During actual installation, the first end of the hinge plate 111 can be fixed to the top or bottom of the box body 110 by means of bolts, and the second end of the hinge plate 111 extends toward the door 100 along the thickness direction of the box body 110, and the fixing tooth portion 312 is provided at the second end of the hinge plate 111 facing the door 100.

[0073] Moreover, the hinge shaft for rotatably connecting the door 100 to the box body 110 may also be disposed at the second end of the hinge plate 111 .

[0074] In one embodiment, the door 100 is rotatably connected to the box body 110 via a hinge shaft, wherein one end of the hinge shaft can be fixedly disposed at the second end of the hinge plate 111 by welding or the like, and the other end extends vertically and is inserted into the door 100. Thus, the door 100 can be rotated relative to the box body 110.

[0075] In one embodiment, Figure 5 and Figure 6 As shown, the fixed tooth portion 312 is an arc-shaped rack, and gear teeth are arranged on the concave surface of the arc-shaped rack, and the driving tooth portion 311 is meshed and connected with the gear teeth.

[0076] Exemplarily, the concave surface of the arc-shaped rack can be extended along the circumferential direction of the rotating shaft connected between the door 100 and the box body 110, and the concave surface is sequentially provided with a plurality of gear teeth, and the driving tooth portion 311 is meshedly connected to the plurality of gear teeth on the concave surface.

[0077] Therefore, when the door 100 rotates relative to the housing 110 , the transmission gear set 313 can rotate on the fixed tooth portion 312 , and the transmission gear set 313 transmits the rotational driving force to the driving tooth portion 311 , so that the driving tooth portion 311 drives the sliding door assembly 320 to move.

[0078] In order to achieve transmission connection, such as Figure 5 and Figure 6 As shown, the transmission gear set 313 includes a first gear 3131, a second gear 3132 and a third gear 3133, the first gear 3131 is meshed and connected with the fixed tooth portion 312, the second gear 3132 is coaxially connected with the third gear 3133, and the second gear 3132 is meshed and connected with the first gear 3131, and the third gear 3133 is meshed and connected with the driving tooth portion 311.

[0079] For example, the door 100 has a certain width. To achieve installation, the sliding door mechanism 300 includes a base 120. The base 120 is configured as a plate-like structure with a certain length. The base 120 is disposed on the door 100. The base 120 extends along the width direction of the door 100. The base 120 may be located near the hinge plate 111, for example, Figure 4 As shown, the hinge plate 111 in this embodiment is connected to the top of the box body 110, and the fixed tooth portion 312 is arranged on the hinge plate 111, and the base 120 can be correspondingly arranged on the top of the box door 100. In other embodiments, when the fixed tooth portion 312 is arranged at the bottom of the box body 110, the base 120 also needs to be correspondingly arranged on the top of the box door 100.

[0080] In this embodiment, the transmission gear set 313 and the driving gear portion 311 in the traction assembly 310 are both disposed on the base 120 .

[0081] As an implementation method, the base 120 is provided with a plurality of rotating shafts extending in the vertical direction, and the first gear 3131 and the second gear 3132 are provided on these rotating shafts and can rotate around their respective rotating shafts, such as Figure 5 and Figure 6 As shown, the first gear 3131 is meshed with the gear of the fixed tooth portion 312 , the second gear 3132 is meshed with the first gear 3131 , the third gear 3133 is coaxially arranged and fixedly connected with the second gear 3132 , and the third gear 3133 is meshed with the driving tooth portion 311 .

[0082] Therefore, during the rotation of the box door 100 relative to the box body 110, the first gear 3131 can rotate on the fixed tooth portion 312, the second gear 3132 can rotate driven by the first gear 3131, the third gear 3133 rotates synchronously with the second gear 3132, and the driving tooth portion 311 can also rotate driven by the third gear 3133, thereby finally driving the sliding door assembly 320 to move.

[0083] In order to adjust the rotation speed of the driving gear portion 311, the gear ratio between the second gear 3132 and the third gear 3133 can be reasonably adjusted. Figures 4 to 6 As shown, during the rotation of the door 100 , in order to increase the rotation speed of the driving gear portion 311 , the number of teeth of the second gear 3132 may be smaller than the number of teeth of the third gear 3133 .

[0084] Furthermore, in order to convert the rotational driving force transmitted by the traction assembly 310 into a translational driving force to drive the cabinet door 200 to move, in addition to the gear rack structure as described above, the sliding door assembly 320 can also be driven by a rotating part to move the pull rope.

[0085] Specifically, in this embodiment, if Figure 5 and Figure 6 As shown, the sliding door assembly 320 includes a winding assembly, a sliding member 340 and a rope assembly.

[0086] Among them, the winding assembly includes a winding drum 331 and a reversing wheel 332, and the winding drum 331 and the reversing wheel 332 are arranged at an interval; the sliding member 340 is arranged between the winding drum 331 and the reversing wheel 332; the rope assembly includes a first rope 351 and a second rope 352, the first rope 351 is wound around the winding drum 331 along a first clockwise direction, and the free end of the first rope 351 is fixed to the sliding member 340 after passing around the reversing wheel 332, and the second rope 352 is wound around the winding drum 331 along a second counterclockwise direction, the first direction and the second direction are opposite, and the free end of the second rope 352 is fixed to the sliding member 340; the traction assembly 310 is connected to the winding drum 331, and the sliding member 340 is connected to the cabinet door 200. During the process of opening or closing the cabinet door 100, the traction assembly 310 drives the winding drum 331 to rotate, and then drives the cabinet door 200 to move relative to the cabinet door 100 through the sliding member 340.

[0087] For example, in order to facilitate installation, in this embodiment, the sliding door assembly 320 may also be disposed on the base 120 .

[0088] like Figure 5 and Figure 6 As shown, the winding drum 331 and the reversing wheel 332 can be spaced apart on the base 120 in the width direction of the box door 100, wherein one end of the box door 100 in the width direction is rotatably connected to the box body 110 via a rotating shaft, and the winding drum 331 can be located on the side close to the rotating shaft relative to the reversing wheel 332.

[0089] In order to achieve installation, a plurality of rotating shafts extending in the vertical direction are provided on the base 120, and the winding drum 331 and the reversing wheel 332 are respectively arranged on these rotating shafts and can rotate around their respective rotating shafts. The sliding member 340 is arranged between the winding drum 331 and the reversing wheel 332. The sliding member 340 is connected to the cabinet door 200. During the movement, the sliding member 340 can drive the cabinet door 200 to move in the width direction of the box door 100.

[0090] The first rope 351 is wound around the winding drum 331 along the first direction, and the free end of the first rope 351 extends from the winding drum 331. The free end is fixedly connected to the sliding member 340 after passing around the reversing wheel 332. At this time, when the winding drum 331 rotates along the second direction, the first rope 351 can be reeled into the winding drum 331. At the same time, the free end of the first rope 351 will drive the sliding member 340 to move toward the reversing wheel 332.

[0091] The second rope 352 is wound around the winding drum 331 along the second direction, and the free end of the second rope 352 extends from the winding drum 331. The free end is directly fixedly connected to the sliding member 340. At this time, when the winding drum 331 rotates along the first direction, the second rope 352 can be reeled into the winding drum 331. At the same time, the free end of the second rope 352 will drive the sliding member 340 to move toward the winding drum 331.

[0092] Further, when the door 100 rotates from the closed position for closing the storage space toward the open position for opening the storage space, the traction assembly 310 can drive the cable drum 331 to rotate in the second direction, at which time the first rope 351 is wound around the cable drum 331 and drives the sliding member 340 to move toward the reversing wheel 332. When the door 100 rotates from the open position for opening the storage space toward the closed position for opening the storage space, the traction assembly 310 can drive the cable drum 331 to rotate in the first direction, at which time the second rope 352 is wound around the cable drum 331 and drives the sliding member 340 to move toward the cable drum 331.

[0093] It can be understood that since the winding drum 331 and the reversing wheel 332 are arranged at intervals along the width direction of the box door 100, through the above-mentioned arrangement, when the box door 100 rotates relative to the box body 110, the cabinet door 200 can be driven to move relative to the box door 100 in the width direction of the box door 100.

[0094] For example, in a specific usage scenario, such as Figure 3 and Figure 4 As shown, the first direction is counterclockwise, and the second direction is clockwise. At this time, the first rope 351 is wound around the winding drum 331 in the counterclockwise direction, and the second rope 352 is wound around the winding drum 331 in the clockwise direction.

[0095] Therefore, in actual use, when the cabinet door 100 rotates from the closed position closing the storage space toward the open position opening the storage space, the traction assembly 310 can drive the cable drum 331 to rotate in the clockwise direction. During the process of the cable drum 331 rotating in the clockwise direction, the first rope 351 is wound onto the cable drum 331, the second rope 352 is unwound from the cable drum 331, and the sliding member 340 moves toward the reversing wheel 332, thereby driving the cabinet door 200 to move in the width direction of the cabinet door 100 in the direction away from the cable drum 331. When the cabinet door 100 rotates from an open position for opening the storage space toward a closed position for opening the storage space, the traction assembly 310 can drive the cable drum 331 to rotate in a counterclockwise direction. During the process of the cable drum 331 rotating in the counterclockwise direction, the second rope 352 is wound onto the cable drum 331, the first rope 351 is unwound from the cable drum 331, and the sliding member 340 moves toward the cable drum 331, thereby driving the cabinet door 200 to move in the width direction of the cabinet door 100 in a direction away from the reversing wheel 332.

[0096] In other embodiments, according to the installation position and usage requirements, the first direction can be clockwise and the second direction can be counterclockwise.

[0097] Further, in this embodiment, when the traction assembly 310 includes the driving tooth portion 311, the driving tooth portion 311 is coaxially fixedly connected with the winding drum 331. Of course, in other embodiments, in addition to the embodiment including the driving tooth portion 311, the traction assembly 310 can also take other forms.

[0098] For example, Figure 7 As shown, the driving gear portion 311 includes a driving gear 3111 and a connecting shaft 3112 , and the winding drum 331 and the driving gear 3111 are coaxially connected via the connecting shaft 3112 , so that the winding drum 331 can rotate synchronously with the driving gear 3111 .

[0099] As an implementation method, the winding drum 331 and the driving gear 3111 can be arranged on the connecting shaft 3112 through a keyway structure, or the driving tooth portion 311 can also include a positioning pin, which is inserted into the winding drum 331 and the driving gear 3111 in parallel with the extending direction of the connecting shaft 3112. Therefore, under the connection of the keyway structure or the positioning pin, the winding drum 331 can rotate synchronously with the driving gear 3111.

[0100] As another specific implementation, the box door 100 is rotatably connected to the box body 110 via a hinge shaft, and the hinge shaft is fixedly connected to the box body 110. The traction assembly 310 may include a gear set, and the gear set includes a plurality of gears meshing with each other. One gear in the gear set is fixedly disposed on the hinge shaft, and the gear is coaxially disposed with the hinge shaft. The other gears in the gear set are rotatably disposed on the box door 100, and one gear in the gear set is fixedly disposed on the winding drum 331. In the process of the box door 100 rotating relative to the box body 110, the box door 100 also rotates synchronously relative to the rotating shaft. The gear set can drive the winding drum 331 to rotate in the first direction or the second direction. In the process of the rotation of the winding drum 331, the sliding member 340 can be moved by pulling the first rope 351 or the second rope 352.

[0101] In order to facilitate the installation of the first rope 351 and the second rope 352, as shown in FIG. Figure 7 As shown, the winding drum 331 includes a first winding drum 3311 and a second winding drum 3312 which are stacked, the first rope 351 is wound around the first winding drum 3311 along a first direction, and the second rope 352 is wound around the second winding drum 3312 along a second direction.

[0102] For example, Figure 7 As shown, the first winding drum 3311, the second winding drum 3312 and the driving gear 3111 are coaxially connected via the connecting shaft 3112, so that the first winding drum 3311 and the second winding drum 3312 can rotate synchronously under the drive of the driving gear 3111.

[0103] In one embodiment, the first rope 351 and the second rope 352 are spaced apart on the winding drum 331 along the height direction of the winding drum 331, and the free end of the first rope 351 and the free end of the second rope 352 are located at different heights at the connection position of the sliding member 340.

[0104] It can be understood that the first wire reel 3311 and the second wire reel 3312 are spaced apart in the height direction of the connecting shaft 3112. At this time, the first rope 351 and the second rope 352 respectively connected to the first wire reel 3311 and the second wire reel 3312 can also be spaced apart in the axial direction of the connecting shaft 3112. By placing the first rope 351 and the second rope 352 at different heights, the first rope 351 and the second rope 352 can be prevented from interfering with each other during the process of storage or unwinding.

[0105] In one embodiment, a first winding groove is provided on the outer periphery of the first winding drum 3311, and the first winding drum 3311 is also provided with a first fixing groove, the first winding groove is connected with the first fixing groove through the notch of the first fixing groove, the fixed end of the first rope 351 is provided in the first fixing groove, and the first rope 351 is wound in the first winding groove along the first direction; and / or, A second winding groove is arranged on the outer periphery of the second winding drum 3312. The second winding drum 3312 is also provided with a second fixed groove. The second winding groove is connected with the second fixed groove through the groove opening of the second fixed groove. The fixed end of the second rope 352 is arranged in the second fixed groove. The second rope 352 is wound around the second winding groove along the second direction.

[0106] For example, Figure 7As shown, the first winding drum 3311 is constructed as a circular plate-like structure with a certain thickness, the outer side wall of the first winding drum 3311 is provided with a first winding groove extending along its circumferential direction, and the first winding drum 3311 is also provided with a first fixing groove extending from the circumferential outer wall toward the radial inner side, the notch of the first fixing groove is connected to the first fixing groove, the fixed end of the first rope 351 is provided in the first fixing groove, and the first rope 351 is wound around the first winding groove along a first direction. For example, the first direction is a counterclockwise direction.

[0107] Optionally, in order to achieve fixation, a first clamping block is provided at the fixed end of the first rope 351, and the first clamping block can be clamped in the first fixing groove. With the help of the first clamping block, the first rope 351 can be prevented from falling off during the rotation of the first winding drum 3311.

[0108] Similarly, if Figure 7 As shown, the second winding drum 3312 is constructed as a circular plate structure with a certain thickness, and the outer wall of the second winding drum 3312 is provided with a second winding groove extending along its circumferential direction. Moreover, the second winding drum 3312 is provided with a second fixed groove extending from the circumferential outer wall toward the radial inside, and the slot of the second fixed groove is connected to the second fixed groove, the fixed end of the second rope 352 is arranged in the second fixed groove, and the second rope 352 is wound around the second winding groove along the second direction.

[0109] Optionally, in order to achieve fixation, a second clamping block is provided at the fixed end of the second rope 352, and the second clamping block can be clamped in the second fixing groove. With the help of the second clamping block, the second rope 352 can be prevented from falling off during the rotation of the second winding drum 3312.

[0110] In one embodiment, in order to effectively avoid the first rope 351 and the second rope 352 from interfering with each other and to facilitate the storage of the first rope 351 and the second rope 352, as shown in FIG. Figure 7 As shown, the winding assembly also includes a first partition 3313 , a second partition 3314 and a third partition 3315 .

[0111] Among them, the first partition 3313, the first winding drum 3311, the second partition 3314, the second winding drum 3312 and the third partition 3315 are stacked, and the first partition 3313 and the second partition 3314 can form a first annular receiving groove for accommodating the first rope 351 on the periphery of the first winding drum 3311; the second partition 3314 and the third partition 3315 can form a second annular receiving groove for accommodating the second rope 352 on the periphery of the second winding drum 3312.

[0112] Exemplarily, the first partition 3313, the first winding drum 3311, the second partition 3314, the second winding drum 3312 and the third partition 3315 are sequentially stacked and arranged, and at this time, the first winding drum 3311 is sandwiched between the first partition 3313 and the second partition 3314, and the second winding drum 3312 is sandwiched between the second partition 3314 and the third partition 3315.

[0113] In actual use, when the driving gear 3111 drives the first winding drum 3311 and the second winding drum 3312 to rotate, the first rope 351 and the second rope 352 connected to the first rope 351 can be respectively received in the first annular receiving groove and the second annular receiving groove.

[0114] Exemplarily, the first partition 3313, the second partition 3314 and the third partition 3315 can all have a circular plate structure of a certain thickness, and the radial dimensions of the first partition 3313 and the second partition 3314 are both larger than the radial dimension of the first partition 3313, and the radial dimensions of the second partition 3314 and the third partition 3315 are both larger than the radial dimension of the second partition 3314.

[0115] Furthermore, in order to ensure effective fixation between the first partition 3313, the first winding reel 3311, the second partition 3314, the second winding reel 3312 and the third partition 3315, the first partition 3313, the first winding reel 3311, the second partition 3314, the second winding reel 3312 and the third partition 3315 can be arranged on the connecting shaft 3112 at the same time.

[0116] Moreover, if Figure 7 As shown, the winding assembly also includes a fastener 3316, which is sequentially installed on the first partition 3313, the first winding drum 3311, the second partition 3314, the second winding drum 3312 and the third partition 3315.

[0117] Exemplarily, the fastener 3316 may be a positioning pin, and the fastener 3316 is sequentially installed in the first baffle 3313, the first winding disk 3311, the second baffle 3314, the second winding disk 3312, and the third baffle 3315 along the axial direction of the winding disk 331. Thus, when the driving tooth portion 311 drives the winding disk 331 to rotate, the first baffle 3313, the first winding disk 3311, the second baffle 3314, the second winding disk 3312, and the third baffle 3315 can rotate synchronously.

[0118] Optionally, the number of the fasteners 3316 may be two, and the two fasteners 3316 are spaced apart in the circumferential direction of the connecting shaft 3112 .

[0119] In one embodiment, in order to effectively guide and limit the movement of the sliding member 340, as shown in FIG. Figure 4 and Figure 5 As shown, the door device further includes a guide rail 400 , which is disposed on the box door 100 , and the sliding member 340 is movably disposed on the guide rail 400 .

[0120] For example, Figure 5 As shown, the guide rail 400 is fixedly arranged on the base 120, the guide rail 400 is extended along the width direction of the cabinet door 100, the sliding member 340 is arranged in the guide rail 400, the sliding member 340 can move along the extension direction of the guide rail 400, and the cabinet door 200 is connected to the sliding member 340. Therefore, when the sliding member 340 moves on the guide rail 400, the cabinet door 200 can also move relative to the cabinet door 100.

[0121] In one embodiment, Figure 6 and Figure 8 As shown, the sliding member 340 includes a sliding portion 341 and a connecting portion 342 connected to each other, the free end of the first rope 351 and the free end of the second rope 352 are both connected to the sliding portion 341, the connecting portion 342 is connected to the cabinet door 200, the guide rail 400 is formed with a guide space and a guide groove 411 connected to the guide space, the sliding portion 341 is slidably arranged in the guide space, the connecting portion 342 is partially exposed to the guide rail 400 through the guide groove 411, and slides along the length direction of the guide groove 411.

[0122] Exemplarily, the guide rail 400 has a guide space inside, the sliding portion 341 in the sliding member 340 is arranged in the guide space, the first rope 351 and the second rope 352 are both connected to the sliding portion 341, and under the pulling of the first rope 351 or the second rope 352, the sliding portion 341 can move in the guide space along the extension direction of the guide rail 400.

[0123] like Figure 5 As shown, the guide rail 400 is also provided with a guide groove 411 , one end of the connecting portion 342 is inserted into the guide space via the guide groove 411 and fixedly connected to the sliding portion 341 , and the other end of the connecting portion 342 is connected to the cabinet door 200 .

[0124] In actual use, when the winding drum 331 rotates to drive the first rope 351 or the second rope 352 to move, the first rope 351 or the second rope 352 can pull the sliding part 341 to move in the guide space, and the connecting part 342 can follow the guide part to move synchronously in the guide groove 411, thereby driving the cabinet door 200 to move relative to the box door 100.

[0125] In one embodiment, the guide rail 400 has a first side and a second side opposite to each other, the first side is connected to the door 100 , and the guide groove 411 is disposed on the second side.

[0126] For example, Figure 5 As shown, the guide rail 400 includes an upper shell 410 and a lower shell 420. Fig. 9 and Fig.10 As shown, the upper shell 410 and the lower shell 420 can be formed by stamping and folding metal plates respectively. The upper shell 410 and the lower shell 420 can be connected to each other to form a guide rail 400 with a certain length. A guide space can be formed between the upper shell 410 and the lower shell 420, and the upper shell 410 is provided with a guide groove 411.

[0127] During actual installation, the lower housing 420 can be firstly arranged on the base 120, and then the sliding member 340 can be arranged on the upper housing 410, and then the upper housing 410 can be connected to the top of the lower housing 420, and the connecting portion 342 of the sliding member 340 can be inserted into the guide groove 411 of the upper housing 410. Finally, the connecting portion 342 can be connected to the cabinet door 200.

[0128] Thus, the sliding member 340 can move in the guide space formed between the upper shell 410 and the lower shell 420, and the connecting portion 342 of the sliding member 340 can extend to the outside of the guide space to drive the cabinet door 200 to move.

[0129] In one embodiment, the sliding portion 341 includes a mounting surface and a guide surface connected to the mounting surface, the mounting surface faces the winding reel 331 or the reversing wheel 332, the guide surface is arranged in contact with the inner wall of the guide space, and the free end of the first rope 351 and the free end of the second rope 352 are both fixed to the mounting surface.

[0130] For example, Figure 8 and Fig.11 As shown, in the width direction of the door 100, the mounting surface is located on the side of the sliding portion 341 facing the winding drum 331, and the guide surface extends along the width direction of the door 100 and is located on the peripheral side of the sliding portion 341 facing the inner wall of the track.

[0131] During actual installation, after the sliding part 341 is installed in the guide space formed by the upper shell 410 and the lower shell 420, the guide surface of the sliding part 341 extending parallel to the width direction of the box door 100 can be attached to the inner walls of the upper shell 410 and the lower shell 420 located in the guide space, and the free end of the first rope 351 and the free end of the second rope 352 are simultaneously connected to the installation surface.

[0132] In other embodiments, in the width direction of the door 100 , the mounting surface may also be located on the side of the sliding portion 341 facing the reversing wheel 332 , and the free ends of the first rope 351 and the second rope 352 are both fixedly connected to the mounting surface.

[0133] Alternatively, there are two mounting surfaces in the width direction of the box door 100. In the width direction of the box door 100, the two mounting surfaces are respectively located on both sides of the sliding portion 341 facing the winding drum 331 and the reversing wheel 332, and the free end of the first rope 351 and the free end of the second rope 352 can be fixedly connected to the two mounting surfaces respectively.

[0134] In one embodiment, Figure 8 and Fig.11 As shown, the mounting surface is provided with a mounting groove 3411, the height direction of the mounting groove 3411 is consistent with the height direction of the winding drum 331, the free end of the first rope 351 and the free end of the second rope 352 are both inserted into the mounting groove 3411, and the free end of the first rope 351 is located above the free end of the second rope 352.

[0135] It can be understood that by setting the installation groove 3411 and making the free end of the first rope 351 and the free end of the second rope 352 located at different heights, the first rope 351 and the second rope 352 can be easily fixed. At the same time, under the joint action of the first winding drum 3311 and the second winding drum 3312, it can be ensured that the first rope 351 and the second rope 352 are located at different positions in the height direction of the box door 100, thereby further avoiding interference.

[0136] In order to fix the free end of the first rope 351 and the free end of the second rope 352 to the sliding part 341, as shown in FIG. Fig.11 As shown, the mounting groove 3411 includes a conducting hole section 3412 and a limiting hole section 3413. The extension direction of the limiting hole section 3413 is consistent with the height direction of the mounting groove 3411. The extension direction of the limiting hole section 3413 is set at an angle to the extension direction of the conducting hole section 3412. The opening of the conducting hole section 3412 is greater than the opening of the limiting hole section 3413. The free end of the first rope 351 and the free end of the second rope 352 can both move in the conducting hole section 3412 and be limited in the limiting hole section 3413.

[0137] Exemplarily, the conducting hole segment 3412 may be perpendicular to the limiting hole segment 3413 . In this case, the conducting hole segment 3412 and the limiting hole segment 3413 together form a T-shaped groove.

[0138] To facilitate fixation, a first limit block is provided at the free end of the first rope 351. The first limit block can be integrally formed with the first rope 351, or the first limit block can be sleeved on the free end of the first rope 351 and limited to the free end of the first rope 351 when the free end of the first rope 351 is knotted. The radial dimension of the first limit block is larger than the diameter of the first rope 351, and the radial dimension of the first limit block is smaller than the opening of the limiting hole section 3413 and larger than the opening of the conducting hole section 3412.

[0139] During actual installation, the free end of the first rope 351 can be connected to the sliding part 341 with the help of the conducting hole section 3412, and the first limiting block can be placed on the side close to the free end of the first rope 351 relative to the installation surface. Then, the first rope 351 is moved from the conducting hole section 3412 to the limiting hole section 3413, and the first limiting block is snapped into the sliding part 341. After that, the first rope 351 can pull the sliding part 341.

[0140] Similarly, a second limit block is provided at the free end of the second rope 352. The second limit block can be integrally formed with the second rope 352, or the second limit block can be sleeved on the free end of the second rope 352 and limited to the free end of the second rope 352 when the free end of the second rope 352 is knotted. The radial dimension of the second limit block is larger than the diameter of the second rope 352, and the radial dimension of the second limit block is smaller than the opening of the limit hole section 3413 and larger than the opening of the conducting hole section 3412.

[0141] During actual installation, the free end of the second rope 352 can be connected to the sliding part 341 with the help of the conducting hole section 3412, and the second limiting block can be placed on the side close to the free end of the second rope 352 relative to the installation surface. Then, the second rope 352 is moved from the conducting hole section 3412 to the limiting hole section 3413, and the second limiting block is snapped into the sliding part 341. After that, the second rope 352 can pull the sliding part 341.

[0142] It can be understood that the first rope 351 and the second rope 352 need to pull the sliding part 341 in opposite directions respectively. Therefore, the free end of the first rope 351 and the free end of the second rope 352 are respectively located on both sides of the limiting hole section 3413, and the limiting blocks connected to the free end of the first rope 351 and the free end of the second rope 352 are also respectively located on both sides of the limiting hole section 3413.

[0143] Furthermore, in order to allow the limit block to be easily snapped into the installation slot 3411, as shown in FIG. Fig.11As shown, a receiving groove 3414 is also provided on the sliding portion 341, and the receiving groove 3414 is located on the side of the mounting surface. For example, the receiving groove 3414 can be provided on the guide surface of the sliding portion 341, and the receiving groove 3414 is connected to the limiting hole section 3413, and the opening of the receiving groove 3414 is larger than the size of the limiting block.

[0144] During actual installation, for example, when the free end of the first rope 351 is connected to the sliding part 341, the limiting block arranged at the free end of the first rope 351 can be placed in the receiving groove 3414, and then the first rope 351 can be placed in the conducting hole section 3412, and finally the first rope 351 can be moved to the limiting hole section 3413, so as to realize the installation of the first rope 351.

[0145] After the free end of the first rope 351 and the free end of the second rope 352 are respectively placed in the limiting hole section 3413, the free end of the first rope 351 and the free end of the second rope 352 can be moved up and down respectively so that the free end of the first rope 351 and the free end of the second rope 352 are located at the two ends of the limiting hole section 3413 in the height direction of the box door 100, so as to be located at different positions in the height direction of the box door 100.

[0146] It can be understood that by setting the receiving groove 3414 as mentioned above, the limit block can be installed more conveniently, and since the receiving groove 3414 can accommodate the first limit block and the second limit block, at this time, the opening of the conducting hole section 3412 and the limit hole section 3413 only needs to be slightly larger than the diameter of the first rope 351 and the second rope 352.

[0147] Moreover, if Figure 4 As shown, the wire winding drum 331 is rotatably arranged on the top of the box door 100, and the reversing wheel 332 and the guide rail 400 are both fixed on the top of the box door 100. At this time, the base 120 is also correspondingly arranged on the top of the box door 100, the wire winding drum 331 is rotatably arranged on the base 120, and the reversing wheel 332 and the guide rail 400 are also arranged on the base 120.

[0148] In other embodiments, according to actual installation requirements, the wire winding drum 331 can be rotatably disposed at the bottom of the door 100 , and the reversing wheel 332 and the guide rail 400 are both fixed at the bottom of the door 100 .

[0149] Alternatively, in order to ensure the connection effect and guarantee that the cabinet door 200 can move in the width direction of the box door 100, the top and bottom of the box door 100 are provided with a winding drum 331, and other structures such as a reversing wheel 332 and a guide rail 400 corresponding to the winding drum 331.

[0150] In one embodiment, in order to realize the connection between the sliding member 340 and the cabinet door 200, as shown in FIG. Figure 4 and Figure 5 As shown, the door body device also includes a connecting component 500, and the connecting part 342 is connected to the cabinet door 200 through the connecting component 500. The connecting component 500 can be switched between a combined state and a separated state, wherein the connecting component 500 includes a first connecting member 510 provided on the connecting part 342 and a second connecting member 520 provided on the cabinet door 200. In the combined state, the first connecting member 510 cooperates with the second connecting member 520, and in the separated state, the first connecting member 510 and the second connecting member 520 are disengaged.

[0151] Exemplarily, the connection assembly 500 includes a first connection member 510 and a second connection member 520. The first connection member 510 can be connected to the sliding portion 341. When the sliding portion 341 moves along the width direction of the cabinet door 100, the sliding portion 341 can drive the first connection member 510 to move, thereby driving the cabinet door 200 to move. The second connection member 520 can be connected to the cabinet door 200, and the first connection member 510 and the second connection member 520 can cooperate with each other through structures such as pins or magnetic members.

[0152] In actual use, when the first connector 510 and the second connector 520 cooperate with each other, the first connector 510 and the second connector 520 are combined with each other, and at this time, the second connector 520 can move synchronously with the first connector 510, thereby driving the cabinet door 200 to move relative to the box door 100. When the first connector 510 and the second connector 520 are disengaged from the cooperation, the first connector 510 and the second connector 520 are separated from each other, and at this time, the cabinet door 200 can be removed from the outer side of the box door 100.

[0153] Exemplarily, the connection portion 342 of the sliding member 340 can be connected to the first connection member 510 in a snap-fit ​​manner. For example, the first connection member 510 is provided with a snap-fit ​​groove extending along the height direction or thickness direction of the door 100, and the connection portion 342 can be directly snap-fitted into the snap-fit ​​groove, so that when the sliding member 340 moves along the width direction of the door 100, the first connection member 510 can be driven to move, and the first connection member 510 can also be easily separated from the sliding member 340.

[0154] For example, in order to save installation space, Figure 5 and Fig.12 As shown, the second connecting member 520 includes a connecting plate 521 and a matching plate 522 connected to the connecting plate 521 at an angle, the connecting plate 521 is connected to the inner side of the cabinet door 200, and the matching plate 522 is detachably connected to the first connecting member 510.

[0155] Exemplarily, the connecting plate 521 is extended along the thickness direction of the box door 100, and the mating plate 522 is extended along the height direction of the box door 100. The connecting plate 521 and the mating plate 522 are vertically connected to each other, and the two together form an L-shaped plate. The connecting plate 521 can be connected to the first connecting member 510 by means of structures such as pins or magnetic parts, and the mating plate 522 is fixedly connected to the cabinet door 200 on the side facing away from the box door 100 by means of structures such as bolts.

[0156] Therefore, through the above-mentioned setting method, an effective connection between the sliding member 340 and the cabinet door 200 can be achieved, and the second connecting member 520 is constructed as an L-shaped structure, which can save space.

[0157] Furthermore, in order to facilitate the installation of the second connecting member 520, as Figure 4 As shown, an avoidance groove 210 is provided on the inner side of the cabinet door 200 , and the connecting plate 521 is disposed in the avoidance groove 210 .

[0158] Exemplarily, in the thickness direction of the cabinet door 200, an avoidance groove 210 is provided on the inner side of the cabinet door 200 facing the box door 100, and the avoidance groove 210 is recessed in the surface of the cabinet door 200. The avoidance groove 210 can also be extended along the height direction of the cabinet door 200. The matching plate 522 in the second connecting member 520 is fixed in the avoidance groove 210 by means of bolts and other structures.

[0159] In practice, by setting the avoidance groove 210 on the cabinet door 200, sufficient installation space can be reserved for the connection between the second connecting member 520 and the cabinet door 200, so that when the cabinet door 200 is set on the outside of the box door 100, the cabinet door 200 can better fit the box door 100, so as to reduce the gap between the cabinet door 200 and the box door 100 and achieve a better installation effect.

[0160] Furthermore, in order to prevent external debris from entering the sliding door mechanism 300 and the guide rail 400, Figure 3 and Fig.13 As shown, the door device further includes a protective shell 130, which is covered on the top of the base 120. An accommodating space can be formed between the protective shell 130 and the base 120, and the sliding door mechanism 300 and the guide rail 400 are both arranged in the accommodating space.

[0161] For example, Fig.14 As shown, the protective shell 130 can be made of sheet metal by stamping, or by injection molding of plastic material. The protective shell 130 is provided with a through groove 131, and the position and size of the through groove 131 correspond to the position and size of the guide groove 411 in the guide rail 400.

[0162] In actual use, the protective shell 130 can be fixedly connected to the base 120 by means of bolts or other structures, and the connecting portion 342 of the sliding member 340 can extend to the outside of the accommodating space via the through slot 131 on the protective shell 130, so as to be connected to the connecting assembly 500. Moreover, since the through slot 131 corresponds to the guide slot 411, it can be ensured that the sliding member 340 can move along the width direction of the cabinet door 100, thereby driving the cabinet door 200 to move.

[0163] Furthermore, in order to realize the sliding connection between the cabinet door 200 and the box door 100, as Figure 3 and Fig.13 As shown, the door device further includes a sliding mechanism 600 , and the cabinet door 200 is slidably disposed on the outer side of the box door 100 via the sliding mechanism 600 .

[0164] Exemplarily, the sliding mechanism 600 may be a structure such as a linear slide rail. For example, the sliding mechanism 600 may be extended along the width direction of the cabinet door 100 , so that the cabinet door 200 can move along the width direction of the cabinet door 100 .

[0165] In one embodiment, Fig.12 and Fig.15 As shown, the sliding mechanism 600 includes a pulley assembly 610 and a slide rail assembly 620, one of which is arranged on the cabinet door 100, and the other is arranged on the cabinet door 200, the pulley assembly 610 includes a pulley 611, and the slide rail assembly 620 is provided with a linear slide cavity, and the rotating axis of the pulley 611 is perpendicular to the axis of the linear slide cavity, so that the pulley 611 cooperates with the linear slide cavity to form a rolling connection.

[0166] In this embodiment, if Fig.13 As shown, the pulley assembly 610 is disposed on the cabinet door 200 , and the slide rail assembly 620 is disposed on the cabinet door 100 .

[0167] More specifically, the pulley 611 in the pulley assembly 610 can be connected to the cabinet door 200, the slide rail assembly 620 is arranged on the top of the cabinet door 100, the linear slide cavity in the slide rail assembly 620 is extended along the width direction of the cabinet door 100, and the pulley 611 has a rotation axis, which is extended along the thickness direction of the cabinet door 100. At this time, the rotation axis and the axis of the linear slide cavity are perpendicular to each other. The pulley 611 is arranged in the linear slide cavity, and the pulley 611 can roll along the axis direction of the linear slide cavity.

[0168] Therefore, through the above-mentioned setting method, using the matching structure of the pulley 611 and the slide rail, the cabinet door 200 can be slidably set on the outside of the box door 100, and the cabinet door 200 can move in the width direction of the box door 100.

[0169] Of course, in other embodiments, according to usage requirements, the pulley assembly 610 can also be set on the cabinet door 100, and the slide rail assembly 620 can be set on the cabinet door 200.

[0170] In one embodiment, Fig.12 and Fig.15 As shown, the slide rail assembly 620 includes a track member 621 and a first mounting member. A linear slide cavity is formed on the track member 621. A first mounting member is provided at a position of the track member 621 other than the linear slide cavity, and the first mounting member is connected to the door 100.

[0171] Exemplarily, the track member 621 can be fixedly set on the top of the box door 100, and the track member 621 extends along the width direction of the box door 100. The track member 621 can be constructed as a U-shaped groove, and the opening of the U-shaped groove is facing away from the side of the cabinet door 200 in the thickness direction of the box door 100.

[0172] Specifically, the track member 621 may include a vertical plate and two horizontal plates, and the vertical plate and the two horizontal plates are both extended along the width direction of the box door 100. The two horizontal plates are respectively vertically connected to the two opposite horizontal plates in the height direction of the box door 100. The linear sliding cavity is located between the two horizontal plates. At the same time, the pulley 611 in the pulley assembly 610 is also arranged between the two horizontal plates.

[0173] The first mounting member can be a structure such as a bolt, and the track member 621 can be fixed to the top of the door 100 with the help of the first mounting member.

[0174] Optionally, two extension plates are respectively arranged on one side of the two horizontal plates away from the vertical plates, and the two extension plates are arranged to extend toward each other. Thus, when the pulley 611 is placed in the linear sliding cavity, the two extension plates and the vertical plates can limit the pulley 611 in the thickness direction of the door 100 to prevent the pulley 611 from falling off from the linear sliding cavity.

[0175] In one embodiment, Fig.12 and Fig.15 As shown, the pulley assembly 610 also includes a mounting seat 612, a pin 613 and a second mounting member; the second mounting member is arranged on the mounting seat 612, and the second mounting member is connected to the cabinet door 200; an axial hole is arranged on the mounting seat 612, and the pin 613 is rotatably inserted into the axial hole, and the pin 613 is inserted into the center of the pulley 611, so that the pulley 611 is rotatably arranged on the mounting seat 612 through the pin 613, and the pin 613 is the rotating axis of the pulley 611.

[0176] Exemplarily, the second mounting member can be a structure such as a bolt, and the mounting seat 612 can be fixedly connected to the cabinet door 200 by means of the second mounting member. The mounting seat 612 is also provided with an axial hole, and the pin shaft 613 can extend along the thickness direction of the cabinet door 100 and be inserted in the axial hole, and the pin shaft 613 is inserted in the pulley 611, and the pulley 611 can rotate around the pin shaft 613.

[0177] Therefore, through the above-mentioned setting method, the pulley 611 can be effectively installed.

[0178] Furthermore, the pin 613 is rotatably inserted into the shaft hole, that is, the pin 613 can rotate in the shaft hole. At this time, in order to position the pin 613, the pin 613 can be provided with retaining springs on both sides of the shaft hole. Through the two retaining springs, when the pin 613 rotates relative to the shaft hole, the pin 613 is prevented from falling off from the shaft hole in the axial direction of the shaft hole. In this arrangement, the roller can be fixedly connected to the pin 613 or rotatably connected to the pin 613.

[0179] Alternatively, the pin 613 can also be fixedly inserted in the shaft hole, in which case the pin 613 cannot move in the shaft hole. Accordingly, in this arrangement, the roller needs to be rotatably connected to the pin 613.

[0180] In one embodiment, Fig.12 and Fig.15 As shown, the mounting seat 612 includes a first plate portion 6121 and a second plate portion 6122 . The first plate portion 6121 and the second plate portion 6122 are arranged at an angle. The first plate portion 6121 is provided with a second mounting member, and the second plate portion 6122 is provided with an axial hole.

[0181] Exemplarily, the first plate portion 6121 can be extended along the thickness direction of the cabinet door 100, and the second plate portion 6122 can be extended along the height direction of the cabinet door 100. The first plate portion 6121 and the second plate portion 6122 are vertically connected. At this time, the mounting seat 612 is roughly formed as an L-shaped plate, and the second mounting member can be a structure such as a bolt. The first plate portion 6121 can be connected to the cabinet door 200 with the aid of the second mounting member. The second plate portion 6122 is provided with an axial hole, and the pin shaft 613 is inserted into the axial hole along the thickness direction of the cabinet door 100.

[0182] The second mounting member may also be a structure such as a bolt. In this case, the first plate portion 6121 is connected to the inner side of the cabinet door 200 through the second mounting member.

[0183] Correspondingly, a recessed portion 220 is provided on the inner side of the cabinet door 200 , and the recessed portion 220 is matched with the first plate portion 6121 , and the first plate portion 6121 is disposed in the recessed portion 220 .

[0184] Exemplarily, in the thickness direction of the cabinet door 100, a recessed portion 220 is provided on the inner side of the cabinet door 200 facing the cabinet door 100, the recessed portion 220 is sunken in the surface of the cabinet door 200, and the first plate portion 6121 is fixed in the recessed portion 220 by a second mounting member.

[0185] It can be understood that by providing a recessed portion 220 on the cabinet door 200, sufficient installation space can be reserved for the connection between the first plate portion 6121 and the cabinet door 200, so that when the cabinet door 200 is arranged on the outer side of the box door 100, the cabinet door 200 can better fit the box door 100, thereby reducing the gap between the cabinet door 200 and the box door 100 and achieving a better installation effect.

[0186] Furthermore, in order to allow the second plate portion 6122 to be more effectively connected to the cabinet door 200, as shown in FIG. Fig.12 As shown, a third plate portion 6123 is provided on a side of the first plate portion 6121 away from the second plate portion 6122 , and the third plate portion 6123 can be fitted in the recessed portion 220 on the inner side of the cabinet door 200 .

[0187] Optionally, the third plate portion 6123 may be arranged to extend in the same direction as the second plate portion 6122. In this case, the first plate portion 6121, the second plate portion 6122 and the third plate portion 6123 may be formed together into a U-shaped frame, and the track member 621 may be arranged in a notch of the U-shaped frame.

[0188] Alternatively, the third plate portion 6123 may be arranged to extend in the opposite direction to the second plate portion 6122. In this case, the first plate portion 6121, the second plate portion 6122 and the third plate portion 6123 may be formed together into a Z-shaped frame.

[0189] Moreover, the slide rail assembly 620 is disposed at at least one of the top of the door 100 and the bottom of the door 100 .

[0190] It can be understood that the slide rail assembly 620 can be arranged at the top of the door 100 , or at the bottom of the door 100 , or the slide rail assembly 620 can be arranged at both the top and the bottom of the door 100 .

[0191] Moreover, when the slide rail assembly 620 is disposed on the cabinet door 100 , the pulley assembly 610 is also correspondingly disposed on the top of the cabinet door 200 or the bottom of the cabinet door 200 .

[0192] As described above, a refrigeration device is also provided in this embodiment, which includes a box body 110 and a door device in the above embodiment. The box door 100 is rotatably connected to the box body 110 and is suitable for opening or closing the storage space of the box body 110.

[0193] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A door device, characterized in that: include: A box door (100) is rotatably connected to the box body (110) and is suitable for opening or closing the storage space of the box body (110); A cabinet door (200), the cabinet door (200) being slidably arranged on the outer side of the box door (100); The sliding door mechanism (300) comprises a traction assembly (310) and a sliding door assembly (320); the traction assembly (310) is arranged between the box body (110) and the sliding door assembly (320); the sliding door assembly (320) is arranged on the box door (100) and connected to the cabinet door (200); the traction assembly (310) is configured to drive the sliding door assembly (320) to move during the process of opening or closing the box door (100), thereby driving the cabinet door (200) to move relative to the box door (100).

2. The door device according to claim 1, characterized in that: The traction assembly (310) comprises a driving tooth portion (311) and a fixed tooth portion (312); the fixed tooth portion (312) is suitable for being arranged on the box body (110); the driving tooth portion (311) is arranged on the sliding door assembly (320); and the fixed tooth portion (312) is meshingly connected with the driving tooth portion (311).

3. The door device according to claim 2, characterized in that: The traction assembly (310) further comprises a transmission gear set (313), wherein the transmission gear set (313) is rotatably disposed on the box door (100), and the fixed tooth portion (312) is meshedly connected with the driving tooth portion (311) via the transmission gear set (313).

4. The door device according to claim 3, characterized in that: The transmission gear set (313) comprises a first gear (3131), a second gear (3132) and a third gear (3133), wherein the first gear (3131) is meshedly connected with the fixed tooth portion (312), the second gear (3132) is coaxially connected with the third gear (3133), the second gear (3132) is meshedly connected with the first gear (3131), and the third gear (3133) is meshedly connected with the driving tooth portion (311).

5. The door device according to any one of claims 1 to 4, characterized in that: The sliding door assembly (320) comprises: A winding assembly comprises a winding drum (331) and a reversing wheel (332), wherein the winding drum (331) and the reversing wheel (332) are arranged at an interval; A sliding member (340), the sliding member (340) being arranged between the winding drum (331) and the reversing wheel (332); A rope assembly comprises a first rope (351) and a second rope (352), wherein the first rope (351) is wound around the winding drum (331) along a first direction, the free end of the first rope (351) is fixed to the sliding member (340) after passing around the reversing wheel (332), and the second rope (352) is wound around the winding drum (331) along a second direction, the first direction and the second direction are opposite, and the free end of the second rope (352) is fixed to the sliding member (340); the traction assembly (310) is connected to the winding drum (331), and the sliding member (340) is connected to the cabinet door (200). When the cabinet door (100) is opened or closed, the traction assembly (310) drives the winding drum (331) to rotate, thereby driving the cabinet door (200) to move relative to the cabinet door (100) through the sliding member (340).

6. The door device according to claim 5, characterized in that: In the case where the traction assembly (310) includes a driving tooth portion (311), the driving tooth portion (311) is coaxially fixedly connected to the winding drum (331).

7. The door device according to claim 6, characterized in that: The box door (100) is suitable for being rotatably connected to the box body (110) via a hinge, wherein the hinge comprises a hinge plate (111), and the fixed tooth portion (312) is arranged on a side of the hinge plate (111) facing the box door (100).

8. The door device according to claim 7, characterized in that: The fixed tooth portion (312) is an arc-shaped toothed rack, a concave surface of the arc-shaped toothed rack is provided with gear teeth, and the driving tooth portion (311) is meshingly connected with the gear teeth.

9. The door device according to claim 5, characterized in that: The winding drum (331) comprises a first winding drum (3311) and a second winding drum (3312) which are stacked, the first rope (351) being wound around the first winding drum (3311) along a first direction, and the second rope (352) being wound around the second winding drum (3312) along a second direction.

10. The door device according to claim 5, characterized in that: The first rope (351) and the second rope (352) are arranged on the winding drum (331) at intervals along the height direction of the winding drum (331), and the free end of the first rope (351) and the free end of the second rope (352) are located at different heights at a connection position of the sliding member (340) and a connection position of the sliding member (340).

11. A refrigeration device, characterized in that: include: A box body (110) is formed with a storage space; According to any one of claims 1 to 10, the box door (100) is rotatably connected to the box body (110), and is suitable for opening or closing the storage space.

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