Door assembly and cabinet

Abstract

The present application relates to the field of storage equipment, and provides a door assembly and a storage cabinet. The door assembly comprises a door body, a handle slot is formed in the door body; a support is adapted to be hinged to the door body through a first rotating shaft and a second rotating shaft, and a cover plate assembly is installed on the support; a driving device is connected with the first rotating shaft and the second rotating shaft respectively; a damping mechanism is installed between the first rotating shaft and the second rotating shaft; the driving device is adapted to drive the support to switch between a pressing state and a reset state; in the pressing state, the cover plate assembly avoids the handle slot, and in the reset state, the cover plate assembly shields the handle slot; in the process of switching between the pressing state and the reset state, the damping mechanism is adapted to compensate for the rotating clearance between the driving device and the first rotating shaft, and compensate for the rotating clearance between the driving device and the second rotating shaft. In the door assembly, the damping mechanism can overcome the torque generated by the support due to its own gravity, and can realize the smooth driving of the driving device on the support.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of storage equipment, and in particular to a door assembly and a storage cabinet. BACKGROUND

[0002] In the related art, in order to realize a handle-free surface of a cabinet body of a storage cabinet, a hidden handle structure appears. Taking a refrigerator as an example, the hidden handle is mostly hinged to a door body through a bracket, and when a motor drives the bracket to act, the handle can be hidden. However, due to the size precision of parts or assembly, there is a gap between the motor and a shaft coupling or between the motor and a shaft sleeve, and at the same time, the bracket will swing to a certain amplitude under the action of its own gravity, resulting in inaccurate matching of the speed of the movement of the bracket and the driving of the motor, and further causing the movement process of the bracket to be not smooth. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the related art. To this end, the present application provides a door assembly capable of improving the movement stability of a bracket.

[0004] The present application also provides a storage cabinet.

[0005] The first aspect of the present application provides a door assembly, comprising:

[0006] a door body formed with a handle slot;

[0007] a bracket adapted to be hinged to the door body through a first rotation shaft and a second rotation shaft, and a cover plate assembly installed on the bracket;

[0008] a driving device connected with the first rotation shaft and the second rotation shaft, respectively;

[0009] a damping mechanism installed between the first rotation shaft and the second rotation shaft;

[0010] The driving device is adapted to drive the bracket to switch between a pressing state and a reset state; in the pressing state, the cover plate assembly avoids the handle slot, and in the reset state, the cover plate assembly shields the handle slot; in the process of switching between the pressing state and the reset state, the damping mechanism is adapted to compensate for the rotational gap between the driving device and the first rotation shaft, and compensate for the rotational gap between the driving device and the second rotation shaft.

[0011] According to the door assembly provided by the embodiment of the first aspect of the present application, the damping mechanism is arranged on the support, and the rotation gap between the driving device and the support is compensated by the damping mechanism, so that the damping mechanism can overcome the torque generated by the support due to its own gravity. When the driving device is engaged with the support, the torque exerted by the driving device on the support can overcome the resistance of the damping mechanism, thereby driving the support to switch between the pressing state and the reset state, so that the driving device can smoothly drive the support.

[0012] According to an embodiment of the present application, the support comprises:

[0013] The first rotating support is adapted to be hinged to the door body through the first rotating shaft and the second rotating shaft, and the other side of the first rotating support is hinged to the cover plate assembly.

[0014] The second rotating support is hinged to the door body on one side, and hinged to the cover plate assembly on the other side.

[0015] The driving device is adapted to drive the first rotating shaft and the second rotating shaft to act, so that the cover plate assembly acts in a direction perpendicular to the door body.

[0016] According to an embodiment of the present application, the driving device comprises a first driving member and a second driving member.

[0017] The damping mechanism comprises:

[0018] The first damping shaft sleeve is installed on one end of the first rotating shaft towards the second rotating shaft.

[0019] The second damping shaft sleeve is installed on one end of the second rotating shaft towards the first rotating shaft.

[0020] The elastic member is adapted to abut between the first damping shaft sleeve and the second damping shaft sleeve.

[0021] According to an embodiment of the present application, a transmission shaft sleeve is connected between the first driving member and the first rotating shaft, and between the second driving member and the second rotating shaft.

[0022] According to an embodiment of the present application, the first rotating support comprises:

[0023] Two first connecting shafts are hinged to the cover plate assembly at both ends respectively.

[0024] two first connecting members, one end of one of the first connecting members is connected between the first rotating shaft and one of the first connecting shafts, and the other end of the first connecting member is connected between the second rotating shaft and the other first connecting shaft;

[0025] The second rotating support comprises:

[0026] two second connecting shafts, one end of one of the second connecting shafts is hingedly connected to the door body, and the other end of the second connecting shaft is hingedly connected to the cover assembly;

[0027] a second connecting member, which is connected between the two second connecting shafts.

[0028] According to one embodiment of the present application, the first connecting shaft is provided with a first limiting member, and the first connecting shaft and the first connecting member are adapted to be connected in a limiting manner through the first limiting member.

[0029] The second connecting shaft is provided with a second limiting member, and the second connecting shaft and the second connecting member are adapted to be connected in a limiting manner through the second limiting member.

[0030] According to one embodiment of the present application, the cover assembly comprises:

[0031] a cover base, to which the two ends of the first connecting shaft and the other end of the second connecting shaft are hingedly connected;

[0032] a cover body, which is mounted on the cover base.

[0033] According to one embodiment of the present application, the door body comprises a support, and the handle slot is formed in the support.

[0034] One side of the first rotating support and the second rotating support is hingedly connected to the support, and the other side of the first rotating support and the second rotating support is hingedly connected to the cover assembly.

[0035] According to one embodiment of the present application, the support is provided with a light bar and a lampshade covering the light bar.

[0036] According to one embodiment of the present application, a detection member is further included, which is mounted on the door body and / or the support to generate a detection signal for detecting a sign signal, and the driving device is adapted to drive the support to switch between the pressing state and the reset state based on the detection signal.

[0037] The second aspect of the present application provides a storage cabinet, which comprises a cabinet body and the door assembly described above, and the door assembly is pivotally mounted on the cabinet body.

[0038] According to the second aspect of the present application, the movement stability of the cover plate assembly is improved by the door assembly, so that the cover plate assembly is more stable during operation.

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

[0040] According to the first aspect of the present application, the rotation gap between the driving device and the bracket is compensated by the damping mechanism arranged on the bracket, so that the damping mechanism can overcome the torque generated by the bracket due to its own gravity. When the driving device is engaged with the bracket, the torque exerted by the driving device on the bracket can overcome the resistance of the damping mechanism, thereby driving the bracket to switch between the pressing state and the reset state, so that the driving device can smoothly drive the bracket.

[0041] Further, according to the second aspect of the present application, the movement stability of the cover plate assembly is improved by the door assembly, so that the cover plate assembly is more stable during operation.

[0042] Additional aspects and advantages of the present application will be described in the following description and become apparent from the following description or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or related art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0044] Figure 1 is a schematic structural diagram of the upper handle slot of the door body being shielded according to the embodiments of the present application;

[0045] Figure 2 is a schematic structural diagram of the upper handle slot of the door body being avoided according to the embodiments of the present application;

[0046] Figure 3 is a schematic exploded view of the bracket and the clutch mechanism according to the embodiments of the present application;

[0047] Figure 4 is a schematic structural diagram of the upper handle slot of the support being shielded according to the embodiments of the present application;

[0048] Figure 5 is a schematic structural diagram of the upper handle slot of the support being in an intermediate state between shielding and avoiding according to the embodiments of the present application;

[0049] Figure 6 is a schematic structural view of a pull handle slot of a support provided by the embodiment of the application;

[0050] Figure 7 is a schematic top view of a support provided by the embodiment of the application;

[0051] Figure 8 is Figure 7 is a partial enlarged view at A in FIG. 1;

[0052] Figure 9 is a schematic sectional view of a cover plate assembly in a reset state provided by the embodiment of the application;

[0053] Figure 10 is a schematic sectional view of a first rotating shaft and a transmission shaft when the cover plate assembly is in the reset state provided by the embodiment of the application;

[0054] Figure 11 is a schematic sectional view of a cover plate assembly in an intermediate state provided by the embodiment of the application;

[0055] Figure 12 is a schematic sectional view of a first rotating shaft and a transmission shaft when the cover plate assembly is in the intermediate state provided by the embodiment of the application;

[0056] Figure 13 is a schematic sectional view of a cover plate assembly in a pressed state provided by the embodiment of the application;

[0057] Figure 14 is a schematic sectional view of a first rotating shaft and a transmission shaft when the cover plate assembly is in the pressed state provided by the embodiment of the application.

[0058] Reference signs:

[0059] 100, door body; 102, handle slot; 104, damping mechanism; 106, driving device; 108, first rotating support; 110, second rotating support; 112, first damping shaft sleeve; 114, second damping shaft sleeve; 116, elastic member; 118, first rotating shaft; 119, second rotating shaft; 120, first connecting shaft; 122, first connecting member; 124, second connecting shaft; 126, second connecting member; 128, first driving member; 130, second driving member; 132, transmission shaft sleeve; 134, first limiting member; 136, second limiting member; 138, cover plate base; 140, cover plate body; 142, support. DETAILED DESCRIPTION

[0060] The embodiments of the application will be further described in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the application, but cannot be used to limit the scope of the application.

[0061] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0062] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0063] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be 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 "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0064] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0065] As Figures 1 to 14As shown, a first aspect embodiment of the present invention provides a door assembly including a door body 100, a bracket, and a drive unit; wherein, a handle groove 102 is formed on the door body 100; the bracket is adapted to be hinged to the door body 100 via a first rotating shaft 118 and a second rotating shaft 119, and a cover plate assembly is mounted on the bracket; the drive unit 106 is connected to the first rotating shaft 118 and the second rotating shaft 119 respectively; a damping mechanism 104 is installed between the first rotating shaft 118 and the second rotating shaft 119; the drive unit 106 is adapted to drive the bracket to switch between a pressed state and a reset state; in the pressed state, the cover plate assembly avoids the handle groove 102, and in the reset state, the cover plate assembly covers the handle groove 102; during the switching between the pressed state and the reset state, the damping mechanism 104 is adapted to compensate for the rotational clearance between the drive unit 106 and the first rotating shaft 118, and to compensate for the rotational clearance between the drive unit 106 and the second rotating shaft 119.

[0066] According to the door assembly provided in the first aspect of the present invention, by providing a damping mechanism 104 on the bracket and compensating for the rotational clearance between the drive device 106 and the bracket, the damping mechanism 104 can overcome the torque generated by the bracket due to its own weight. When the drive device 106 engages with the bracket, the torque applied to the bracket by the drive device 106 can overcome the resistance of the damping mechanism 104, thereby driving the bracket to switch between a pressing state and a reset state, thus achieving smooth drive of the bracket by the drive device 106.

[0067] The following example uses the door assembly provided in the first aspect of the present invention to be applied to a refrigerator. In the embodiment of the present invention, the door body 100 can be one or more. In other words, the door assembly provided in the embodiment of the present invention can be applied to a single-door refrigerator or a double-door refrigerator.

[0068] A handle groove 102 is formed on the door body 100 for the user to hold. When the handle groove 102 is exposed, the user can hold the handle groove 102 to open the door body 100.

[0069] It should be noted that, in conjunction with the above, Figure 1 and Figure 2 The position of the door assembly on the door body 100 provided in this embodiment of the invention is not limited, but may vary in some specific embodiments.

[0070] When there is only one door body 100, the handle groove 102 can be formed near the edge of the door body 100. That is, when the drive device 106 drives the cover plate assembly to switch to the pressing state, the handle groove 102 set at the edge of the door body 100 can be exposed.

[0071] When the door body 100 is multiple, the handle slot 102 can be formed at the side edge position of any door body 100, and of course can be formed at the non-edge position of the door body 100 according to the requirement. Thus, when the user needs to open the current door body 100, the driving device 106 can drive the cover plate assembly on the door body 100, and then the handle slot 102 on the door body 100 is exposed to facilitate the user to hold the handle slot 102 to open the door body 100.

[0072] Or the driving device 106 is used to drive the cover plate assembly on the door body 100 to expose the handle slot 102 on the adjacent door body 100, and then the user can open the adjacent door body 100, in other words, the user can flexibly select to open the corresponding door body 100 according to the actual opening requirement. That is, when the door body 100 is multiple, the handle slot 102 can be arranged on the adjacent two door bodies 100, and then the user can conveniently open the required door body 100.

[0073] In the embodiment of the application, the door assembly further comprises a support 142, which is installed on the door body 100. For example, the support 142 can be installed in the foaming layer of the door body 100 or detachably installed on the door body 100 by means of bolts, clamping or the like, and the handle slot 102 described above is formed on the support 142.

[0074] One side of the bracket is hinged to the support 142, and the other side of the bracket is provided with the cover plate assembly. The bracket is adapted to switch between the pressing state and the reset state. In the pressing state, the cover plate assembly avoids the handle slot 102, and in the reset state, the cover plate assembly shields the handle slot 102.

[0075] As described above, when the bracket is in the pressing state, the cover plate assembly installed on the bracket can avoid the handle slot 102, so that the handle slot 102 is exposed. At this time, the user can hold the handle slot 102 to open the door body 100. When the bracket is in the reset state, the cover plate assembly installed on the bracket can shield the handle slot 102, so that the door body 100 is in a flat and simple state. The pressing state mentioned here refers to that when the driving device 106 drives the bracket to drive the cover plate assembly to move towards the position of being retracted in the door body 100, when the cover plate assembly exposes the handle slot 102, at this time, the bracket is in the pressing state. The reset state refers to that the bracket drives the cover plate assembly to switch from the state of being retracted in the door body 100 to the state of being flush with the outer surface of the door body 100, at this time, the bracket is in the reset state.

[0076] In the embodiment of the application, the driving device 106 can be installed in the support 142 or directly installed on the door body 100. The driving device 106 is mainly used to control the bracket to switch between the pressing state and the reset state.

[0077] According to one embodiment of the present application, the bracket comprises a first rotating bracket 108 and a second rotating bracket 110. One side of the first rotating bracket 108 is hinged to the support 142, and the other side of the first rotating bracket 108 is hinged to the cover plate assembly; one side of the second rotating bracket 110 is hinged to the support 142, and the other side of the second rotating bracket 110 is hinged to the cover plate assembly; the driving device 106 is adapted to drive the first rotating bracket 108 and / or the second rotating bracket 110 to drive the cover plate assembly to move in a direction perpendicular to the door body 100.

[0078] Referring to Figure 2 , Figure 9 , Figure 11 and Figure 13 , the first rotating bracket 108 and the second rotating bracket 110 jointly constitute the bracket in the embodiment of the present application. One side of the first rotating bracket 108 and one side of the second rotating bracket 110 are respectively hinged to the support 142, and the other side of the first rotating bracket 108 and the other side of the second rotating bracket 110 are respectively hinged to the cover plate assembly. Thus, the cover plate assembly can move relative to the support 142 under the hinging action of the first rotating bracket 108 and the second rotating bracket 110.

[0079] The driving device 106 can be connected to the first rotating bracket 108 or the second rotating bracket 110 respectively, or the driving device 106 can be connected to the first rotating bracket 108 and the second rotating bracket 110 simultaneously. Through the driving of the driving device 106, the first rotating bracket 108 and / or the second rotating bracket 110 can be driven to rotate, thereby achieving the purpose of driving the cover plate assembly to move relative to the support 142. In the embodiment of the present application, the first rotating bracket 108 and the second rotating bracket 110 can drive the cover plate assembly to move in a direction perpendicular to the door body 100. It can be understood that the cover plate assembly can move in translation relative to the door body 100 in a direction perpendicular to the door body 100.

[0080] In the embodiment of the present application, the driving device 106 is in transmission connection with the support through the first rotating shaft 118 and the second rotating shaft 119. It can be understood that the first rotating shaft 118 and the second rotating shaft 119 are respectively connected to the two ends of the support and are respectively in transmission connection with the driving device 106. In this way, the stability of the driving device 106 when driving the support to move can be improved. Meanwhile, the driving device 106 connected to the first rotating shaft 118 and the driving device 106 connected to the second rotating shaft 119 can be controlled independently. In this way, the relative independent movement of the first rotating shaft 118 and the second rotating shaft 119 can be realized. It can be understood that when the support is switched from the pressing state to the reset state, the driving device 106 connected to the first rotating shaft 118 and the driving device 106 connected to the second rotating shaft 119 can respectively drive the first rotating shaft 118 and the second rotating shaft 119 to move, so as to switch the two ends of the support to the reset state. In this way, the surface of the cover plate assembly can be flush with the surface of the door body 100. When the support is switched from the reset state to the pressing state, the driving device 106 connected to the first rotating shaft 118 and the driving device 106 connected to the second rotating shaft 119 can respectively drive the first rotating shaft 118 and the second rotating shaft 119 to move, so as to switch the two ends of the support to the pressing state. In this way, the cover plate assembly can completely avoid the handle slot 102, so as to facilitate the user to hold the handle slot 102 to open the door body 100, and avoid the situation that the cover plate assembly cannot move to the position due to the manufacturing error of the cover plate assembly. In the above two processes, the driving device 106 connected to the first rotating shaft 118 and the driving device 106 connected to the second rotating shaft 119 move independently and synchronously, so as to ensure the movement accuracy of the cover plate assembly.

[0081] According to an embodiment of the present application, the first rotating support 108 comprises two first connecting shafts 120 and two first connecting pieces 122, and the second rotating support 110 comprises two second connecting shafts 124 and a second connecting piece 126. The two ends of the first rotating shaft 118 and the second rotating shaft 119 are respectively hinged to the support seat 142, the two ends of the two first connecting shafts 120 are respectively hinged to the cover plate assembly, one of the first connecting pieces 122 is connected between the first rotating shaft 118 and one of the first connecting shafts 120, and the other first connecting piece 122 is connected between the second rotating shaft 119 and the other first connecting shaft 120. The two ends of one of the second connecting shafts 124 are hinged to the support seat 142, the two ends of the other second connecting shaft 124 are hinged to the cover plate assembly, and the second connecting piece 126 is connected between the two second connecting shafts 124.

[0082] In other words, referring to Figure 3, the two ends of the first rotating shaft 118 and the second rotating shaft 119 and the two ends of one of the second connecting shafts 124 are respectively hinged with the support 142, the two ends of the two first connecting shafts 120 and the two ends of the other second connecting shaft 124 are respectively hinged with the cover plate assembly. In order to improve the connection stability between the first rotating shaft 118 and the second rotating shaft 119 and the first connecting shaft 120, a first connecting piece 122 is further connected between the first rotating shaft 118 and the second rotating shaft 119 and the first connecting shaft 120, and a second connecting piece 126 is further connected between the two second connecting shafts 124.

[0083] It should be noted that in the embodiment of the present application, the cross section of the first rotating shaft 118 and the second rotating shaft 119 is a polygonal shaft. The first connecting shaft 120 can be arranged to be equal in width to the first connecting piece 122, and the second connecting shaft 124 can be arranged to be equal in width to the second connecting piece 126.

[0084] Please refer to Figure 9 , Figure 11 and Figure 13 , which show the hinged points of the first rotating shaft 118 and the support 142, the hinged points of one of the second connecting shafts 124 and the support 142, the hinged points of the first connecting shaft 120 and the cover plate assembly, and the hinged points of the other second connecting shaft 124 and the cover plate assembly. Connecting these four hinged points in order can form a parallelogram. Since the hinged points of the first rotating shaft 118 and the support 142 and the hinged points of one of the second connecting shafts 124 and the support 142 are fixed points, the relative distance between these two hinged points and the inclination angle of the line connecting these two hinged points are also fixed. Therefore, the distance between the hinged points of the first connecting shaft 120 and the cover plate assembly and the hinged points of the other second connecting shaft 124 and the cover plate assembly is also equal, and the line connecting the hinged points of the first connecting shaft 120 and the cover plate assembly and the hinged points of the other second connecting shaft 124 and the cover plate assembly is parallel to the line connecting the hinged points of the first rotating shaft 118 and the support 142 and the hinged points of one of the second connecting shafts 124 and the support 142. Therefore, the cover plate assembly can move up and down along the direction perpendicular to the door body 100 as shown in Figure 9 , Figure 11 or Figure 13 .

[0085] It should be noted that, as shown in Figure 9 , Figure 11 and Figure 13 , during the movement of the cover plate assembly from the position shielding the handle slot 102 to the position avoiding the handle slot 102, the cover plate assembly first moves downward by a distance of about 1mm to 3mm as shown in Figure 9 , and then moves downward by a distance of about 1mm to 3mm as shown in Figure 9about 1mm to 3mm to the left, and finally moves to the position of the cover handle slot 102 as shown in Figure 13 Similarly, during the movement of the cover assembly from the position of the avoiding handle slot 102 to the position of the cover handle slot 102, the cover assembly first moves downwardly about 1mm to 3mm to the position as shown in Figure 9 then moves to the left about 1mm to 3mm to the position as shown in Figure 9 and finally moves to the position of the cover handle slot 102 as shown in Figure 9

[0086] In order to limit the relative position between the first connecting shaft 120 and the first connecting member 122, a first limiting member 134 is further arranged at both ends of the first connecting shaft 120, which can be a limiting pin or the like. Similarly, in order to limit the relative position between the second connecting shaft 124 and the second connecting member 126, a second limiting member 136 is further arranged at both ends of the second connecting shaft 124, which can be a limiting pin or the like.

[0087] In some other embodiments, the first rotating bracket 108 and the second rotating bracket 110 can also be arranged in the form of a rectangular frame, that is, in this implementation, the first rotating bracket 108 and the second rotating bracket 110 can not be provided with the first rotating shaft 118, the second rotating shaft 119, the first connecting shaft 120, the second connecting shaft 124 and the corresponding connecting members, but instead use an integrally formed rectangular frame structure to replace the above-mentioned components.

[0088] According to an embodiment of the present application, the cover assembly comprises a cover base 138 and a cover body 140; both ends of the first connecting shaft 120 and both ends of the second connecting shaft 124 are respectively hinged to the cover base 138; and the cover body 140 is mounted to the cover base 138.

[0089] With reference to Figure 9 , Figure 11 and Figure 13 , both ends of the first connecting shaft 120 and the other second connecting shaft 124 are respectively hinged to the cover base 138, and the cover body 140 is further mounted to the cover base 138, and the cover body 140 and the cover base 138 can be fixed by bonding, clamping or the like. In other words, when the driving device 106 drives the first rotating bracket 108 and / or the second rotating bracket 110 to act, the first rotating bracket 108 and the second rotating bracket 110 can drive the cover base 138 and the cover body 140 to switch between the position of the avoiding handle slot 102 and the position of the cover handle slot 102. In addition, the cover body 140 can be made of the same material as the outer surface of the door body 100, which can further improve the appearance consistency of the outer surface of the door body 100. ​

[0090] In this embodiment of the invention, the driving device 106 includes a first driving member 128 and a second driving member 130, which are respectively connected to the two ends of a first rotating shaft 118 and a second rotating shaft 119. This enables synchronous driving of the first rotating bracket 108, ensuring the synchronicity of the rotation of the first rotating bracket 108.

[0091] A transmission shaft sleeve 132 is also connected between the first drive member 128 and the first rotating shaft 118, as well as between the second drive member 130 and the second rotating shaft 119. By setting the transmission shaft sleeve 132, the transmission connection between the first drive member 128, the second drive member 130 and the first rotating shaft 118 and the second rotating shaft 119 can be better realized.

[0092] Please continue reading Figure 3 In this embodiment of the invention, the door assembly further includes a light strip and a lampshade covering the light strip. The light strip is detachably mounted on the support 142, and the lampshade can be snapped onto the light strip. Of course, in some other embodiments, the light strip can also be directly mounted below the cover body 140 and move synchronously with the cover body 140.

[0093] By installing a light strip on the support 142, the light strip can illuminate the position of the cover assembly when a person approaches the door 100, allowing the user to accurately know the specific location of the cover assembly. The light strip automatically turns off when the door 100 is closed.

[0094] In this embodiment of the invention, a detection element is installed on the door 100 and / or the bracket. The detection element can be used to detect whether a human body is approaching, or to detect the opening and closing state of the door 100 or to detect whether a user has left. When the detection element detects the above situation, the detection element can generate a first detection signal for controlling the drive device 106.

[0095] Specifically, when the detector detects a human body approaching, it indicates that the user has a request to open the door, and the detector is used to generate a first detection signal indicating that the door 100 is open. After receiving the first detection signal, the drive device 106 can switch the first rotating bracket 108 and / or the second rotating bracket 110 from the reset state to the pressing state.

[0096] When the door 100 switches from the open state to the closed state, the detection element can detect the movement of the door 100 to generate a first detection signal indicating that the door 100 is closed; or, when the user leaves, the detection element can detect that the person has left the vicinity of the door 100 to generate a first detection signal indicating that the door 100 can be closed. When the drive device 106 receives the first detection signal, the drive device 106 can switch the first rotating bracket 108 and / or the second rotating bracket 110 from the pressed state to the reset state.

[0097] It should be noted that, in addition to the sensors for detecting human distance (such as infrared sensors and laser sensors) mentioned above, the detection device can also be a sensor for detecting human biometrics, such as facial recognition and voice recognition devices, or a pressure sensor. When a user touches a certain area of ​​the door 100, a first detection signal is generated. In other words, the present invention does not impose specific restrictions on the type of detection device and the excitation method, as long as it can determine the user's opening and closing needs.

[0098] In this embodiment of the invention, the running time of the motor can also be set to automatically stop after running for a certain number of seconds. For example, when the motor drives the first rotating bracket 108 to switch from the reset state to the pressing state and encounters a foreign object stuck, the motor will automatically stop after running for a certain number of seconds. After the foreign object is removed, the cover plate body 140 can be manually pressed to make the bracket move to the pressing state. This can effectively avoid the motor being damaged due to large torque.

[0099] Furthermore, by setting the motor's running time to a preset duration, the motor can automatically stop after the preset time, eliminating the need for additional sensors and further reducing design and manufacturing costs. Additionally, users can keep the bracket in the pressed state according to their actual needs, allowing for convenient opening of the door 100 at any time. Correspondingly, keeping the bracket in the pressed state can be achieved by controlling the motor.

[0100] The damping mechanism 104 provided in the embodiments of the present invention will be described below:

[0101] like Figure 3 As shown, according to one embodiment of the present invention, the damping mechanism 104 includes a first damping bushing 112, a second damping bushing 114, and an elastic member 116; wherein, the first damping bushing 112 is installed at one end of the first rotating shaft 118 facing the second rotating shaft 119, and the second damping bushing 114 is installed at one end of the second rotating shaft 119 facing the first rotating shaft 118; the elastic member 116 abuts against the first damping bushing 112 and the second damping bushing 114.

[0102] In the embodiment of the present application, the first damping sleeve 112 is fixedly arranged on the first rotating shaft 118, and the second damping sleeve 114 is fixedly arranged on the second rotating shaft 119. An elastic member 116 is arranged between the second damping sleeve 114 and the first damping sleeve 112, and the two ends of the elastic member 116 are fixed relative to the axial positions of the first rotating shaft 118 and the second rotating shaft 119. The elastic member 116 can be a spring, a torsion spring, etc. In this way, the second damping sleeve 114 is always pressed against the first damping sleeve 112 under the elastic force of the elastic member 116, and the purpose of preventing the support from rotating under its own weight is effectively achieved.

[0103] Taking the first driving member 128 and the second driving member 130 as motors as an example, when the output shaft of the motor is in transmission with the first damping sleeve 112, the other motor can drive the second damping sleeve 114 to move. Thus, with the forward and reverse rotation of the two motors, the purpose of driving the first rotating shaft 118 and the second rotating shaft 119 to rotate forward or reversely is achieved. However, because the elastic member 116 is arranged between the first damping sleeve 112 and the second damping sleeve 114, the friction therebetween is large, thereby avoiding the rotation of the support under its own weight. When the torque applied by the motor is greater than the friction between the first damping sleeve 112 and the second damping sleeve 114, the purpose of driving the support to stably rotate is achieved.

[0104] When the first rotating shaft 118 and the second rotating shaft 119 are stuck by foreign matters during forward or reverse rotation, the transmission connection between the first damping sleeve 112 and the second damping sleeve 114 is resisted. At this time, although the spring can still press the second damping sleeve 114 against the first damping sleeve 112, because the resistance is much greater than the elastic supporting force of the spring, the transmission connection between the first damping sleeve 112 and the second damping sleeve 114 is no longer stable. That is, at this time, the first rotating shaft 118 or the second rotating shaft 119 no longer synchronously moves with the second damping sleeve 114, and the motor only drives the first damping sleeve 112 or the second damping sleeve 114 to rotate idly, and the first rotating shaft 118 and the second rotating shaft 119 no longer rotate.

[0105] When the foreign matters are removed, the second damping sleeve 114 again realizes the contact with the first damping sleeve 112 under the elastic supporting force of the elastic member 116, and at this time, the first rotating shaft 118 and the second rotating shaft 119 can continue to realize the power transmission with the motor.

[0106] When power failure occurs, the motor stops, and if the cover plate assembly is in the reset state, the user can directly press the cover plate assembly, so that the cover plate assembly is from the reset state to the pressing state. Since the pressure applied by the user to the cover plate assembly is much greater than the elastic force of the elastic element 116 between the first damping sleeve 112 and the second damping sleeve 114, the user can still hold the exposed handle slot 102 to open the door body 100.

[0107] It can be understood that in the embodiment of the application, due to the size precision of parts or assembly, there is a certain gap between the output shaft of the motor and the first damping sleeve 112, or there is a certain gap between the output shaft of the motor and the second damping sleeve 114. When the motor starts to rotate, due to the certain gap between the output shaft of the motor and the first damping sleeve 112 or the second damping sleeve 114, the cover plate assembly cannot act under the action of the motor in a short time, as shown in FIG. 6, the bracket will move a certain distance in the direction close to the inside of the door body 100 under the action of gravity, until the motor and the first damping sleeve 112 or the second damping sleeve 114 are engaged, and then the bracket continues to move under the drive of the motor. Due to the mismatch between the movement of the bracket under the action of gravity and the speed of the motor drive, the movement process is not smooth. After adding the damping mechanism 104, the friction torque generated when the first rotating shaft 118 and the second rotating shaft 119 drive the first damping sleeve 112 and the second damping sleeve 114 to rotate is greater than or equal to the torque generated by the gravity acting on the cover plate assembly. When the motor starts to rotate, the cover plate assembly remains stationary under the friction torque, until the motor and the first damping sleeve 112 or the second damping sleeve 114 are engaged, and then the cover plate assembly starts to move under the drive of the motor, so as to ensure that the movement speed of the cover plate assembly is more stable, and the whole movement process is more smooth. Figure 9

[0108] The second aspect embodiment of the application provides a storage cabinet, which comprises a cabinet body and the door assembly.

[0109] According to the storage cabinet of the second aspect embodiment of the application, by arranging the door assembly, the flatness and simplicity of the surface of the door body 100 can be ensured when the door body 100 is in the closed state, while the convenience of opening and closing the door body 100 is ensured. Meanwhile, the user can be prevented from being pinched, and the damage of the driving device 106 can be avoided.

[0110] In the embodiment of the application, the storage cabinet can be a refrigerator, a freezer, a wine cabinet, etc.

[0111] ​Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

[0112] The above embodiments are only used to illustrate the present application, but not limit the present application. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the technical solutions of the present application, and should be covered in the scope of the claims of the present application.

Claims

1. A door assembly, characterized in that, include: The door body has a handle groove. A bracket is adapted to be hinged to the door body via a first pivot and a second pivot, and a cover plate assembly is mounted on the bracket; The drive unit is connected to the first rotating shaft and the second rotating shaft respectively; A damping mechanism is installed between the first rotating shaft and the second rotating shaft; The driving device is adapted to drive the bracket to switch between a pressed state and a reset state; In the pressed state, the cover plate assembly avoids the handle groove; in the reset state, the cover plate assembly covers the handle groove. During the switching process between the pressing state and the reset state, the damping mechanism is adapted to compensate for the rotational clearance between the driving device and the first rotating shaft, and to compensate for the rotational clearance between the driving device and the second rotating shaft; The driving device includes a first driving component and a second driving component; The damping mechanism includes: The first damping bushing is installed on the end of the first rotating shaft facing the second rotating shaft; The second damping bushing is installed on the end of the second rotating shaft facing the first rotating shaft; An elastic element, the elastic element being adapted to abut against the first damping bushing and the second damping bushing.

2. The door assembly according to claim 1, characterized in that, The support includes: A first rotating bracket, one side of which is adapted to be hinged to the door body via a first rotating shaft and a second rotating shaft, and the other side of which is hinged to the cover plate assembly; The second rotating bracket has one side hinged to the door body and the other side hinged to the cover plate assembly; The drive device is adapted to drive the first and second rotating shafts to move, so that the cover plate assembly moves in a direction perpendicular to the door body.

3. The door assembly according to claim 1, characterized in that, A transmission shaft sleeve is connected between the first driving component and the first rotating shaft, and between the second driving component and the second rotating shaft.

4. The door assembly according to claim 2, characterized in that, The first rotating support includes: Two first connecting shafts, with their ends respectively hinged to the cover plate assembly; Two first connecting parts, one of which is connected at both ends to the first rotating shaft and another first connecting shaft respectively, and the other of which is connected at both ends to the second rotating shaft and another first connecting shaft respectively; The second rotating support includes: Two second connecting shafts, one of which is hinged at both ends to the door body, and the other of which is hinged at both ends to the cover plate assembly; The second connector is connected between the two second connecting shafts.

5. The door assembly according to claim 4, characterized in that, The first connecting shaft is provided with a first limiting member, and the first connecting shaft and the first connecting member are adapted to achieve a limiting connection through the first limiting member; The second connecting shaft is provided with a second limiting member, and the second connecting shaft and the second connecting member are adapted to achieve a limiting connection through the second limiting member.

6. The door assembly according to claim 4 or 5, characterized in that, The cover plate assembly includes: The cover plate base, the two ends of the first connecting shaft and another second connecting shaft are respectively hinged to the cover plate base; The cover plate body is installed on the cover plate base.

7. The door assembly according to claim 4 or 5, characterized in that, The door body includes a support, and the handle groove is formed in the support; One side of the first rotating bracket and the second rotating bracket is hinged to the support, and the other side of the first rotating bracket and the second rotating bracket is hinged to the cover plate assembly.

8. The door assembly according to claim 7, characterized in that, The support is provided with a light strip and a lamp cover covering the light strip.

9. The door assembly according to any one of claims 1 to 5, characterized in that, It also includes a detection element, which is mounted on the door and / or bracket to generate a detection signal for detecting vital signs, and the drive device is adapted to drive the bracket to switch between a pressed state and a reset state based on the detection signal.

10. A storage cabinet, characterized in that, It includes a cabinet and a door assembly as claimed in any one of claims 1 to 9, the door assembly being pivotally mounted to the cabinet.

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