Door assembly, freezing / refrigerating compartment and refrigerator

Abstract

The application provides a door body assembly, a freezing / refrigerating compartment and a refrigerator, and relates to the technical field of the refrigerator, which solves the problem that the whole compartment door needs to be opened when taking out the goods from the freezing compartment or the refrigerating compartment, resulting in a large opening space of the freezing compartment or the refrigerating compartment. The door body assembly comprises at least two inner doors in the compartment door, all the inner doors are in sliding connection with the door frame, all the inner doors can seal the compartment when being completely unfolded on the door frame, and when any inner door is pushed or pulled, the inner door can slide along another adjacent inner door, thereby opening or closing at least part of the compartment when the compartment door is opened. When different storage spaces in the compartment need to be opened, the corresponding door body can be pushed or pulled to slide on the door frame, thereby opening the corresponding part of the compartment, and meanwhile, the sliding connection between the adjacent inner doors does not affect the sliding of any inner door, the loss of cold energy between the inner doors is reduced, the opening space of the compartment is reduced, and the energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator, in particular to a door assembly, a freezing / refrigerating compartment and a refrigerator. BACKGROUND

[0002] As a freezing and refrigerating container, the refrigerator has been more and more common in people's daily life. The refrigerator usually comprises a refrigerating compartment and a freezing compartment. The refrigerating compartment has a refrigerating compartment door and two or more refrigerating compartments in the refrigerating compartment door. The freezing compartment has a freezing compartment door and two or more compartments in the freezing compartment door.

[0003] The present applicant finds that the prior art at least has the following technical problems: on the one hand, when taking or placing the items in the refrigerating compartment or the freezing compartment, the whole door corresponding to the items needs to be opened regardless of the size of the items, so that the refrigerator has a large open space, a large amount of cold is lost, and the energy consumption of the refrigerator is high. On the other hand, when the refrigerating / freezing compartment door is closed, the door seal is deformed due to aging after long-term use, or the door seal structure is deformed due to transportation vibration, improper installation, improper operation when opening and closing the door, etc., thereby causing the problem of poor sealing of the door seal, and the freezing compartment or the refrigerating compartment leaks cold, resulting in condensation of the refrigerator and affecting the user experience. SUMMARY

[0004] The purpose of the present application is to provide a door assembly, a freezing / refrigerating compartment and a refrigerator to solve the technical problem in the prior art that the whole door needs to be opened when taking or placing items from the freezing compartment or the refrigerating compartment, resulting in a large open space of the freezing compartment or the refrigerating compartment to the outside, and a large amount of cold is lost. The preferred technical solutions in the technical solutions provided by the present application can produce the technical effects as described below.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] The door assembly provided by the present application comprises at least two inner doors in the compartment door. All the inner doors are in sliding connection with the door frame. All the inner doors can seal the compartment when fully unfolded on the door frame. When any of the inner doors is pushed or pulled, the inner door can slide along another inner door adjacent to it, thereby opening or closing at least part of the compartment when the door is opened.

[0007] Preferably, the compartment has one or more than two storage spaces. When all the storage spaces are arranged vertically, all the inner doors can slide vertically on the door frame. When all the storage spaces are arranged horizontally, all the inner doors can slide horizontally on the door frame.

[0008] Preferably, one of the two adjacent inner doors is provided with a sliding slot, and the other is provided with a sliding block inserted into the sliding slot, and the matching structure of the sliding slot and the sliding block enables the two adjacent inner doors to be slidingly connected.

[0009] Preferably, one or both of the opposite side walls of the door frame is provided with a receiving slot, and all the connected inner doors are arranged along the width direction of the receiving slot, so that any two of the inner doors are in different sliding planes.

[0010] Preferably, the receiving slot is communicated with a flared slot, and the flared slot is communicated with the outer edge of the door frame, and all the connected inner doors can be inserted into the receiving slot through the flared slot and assembled in place in the receiving slot.

[0011] Preferably, all the inner doors and the door frame have a locking state and a movable state, in the locking state, the inner doors are locked on the door frame, and in the movable state, the inner doors can slide up and down or left and right on the door frame.

[0012] Preferably, the door frame is provided with a fixed hole, and the inner door comprises an inner door body and a locking assembly, wherein:

[0013] The locking assembly is retractably arranged on the inner door body, at least part of the locking assembly is inserted into the corresponding fixed hole in the locking state, and pulling the locking assembly can make the locking assembly disengage from the fixed hole and make the corresponding inner door and the door frame in the movable state.

[0014] Preferably, the locking assembly comprises a handle and a positioning column, wherein:

[0015] The handle and the positioning column are fixedly connected and slidingly arranged on the inner door body, one end of the positioning column is located in the inner door body, the other end of the positioning column extends out of the inner door body and is inserted into the corresponding fixed hole in the locking state, and pulling the handle can make the positioning column slide and disengage from the fixed hole to make the inner door and the door frame in the movable state.

[0016] Preferably, the inner door body is provided with a slot hole, and the opening of the slot hole is located on the side wall of the inner door body;

[0017] The locking assembly further comprises a resilient portion, the resilient portion is fixed in the slot hole, one end of the positioning column located in the slot hole abuts against the resilient portion, pulling the handle can make the positioning column compress the resilient portion and disengage from the fixed hole, and after the external force acting on the handle is removed, the resilient portion can push the positioning column to be inserted into the corresponding slot hole.

[0018] Preferably, the fixing holes include upper fixing holes and lower fixing holes for fixing the lowermost inner door, wherein:

[0019] When the lowermost inner door is in sealing fit with the inner wall of the bottom of the door frame, at least part of the lock assembly on the lowermost inner door can be inserted into the lower fixing hole; when the lowermost inner door is pushed upward, at least part of the lock assembly on the lowermost inner door can be inserted into the upper fixing hole.

[0020] Preferably, among the two adjacent inner doors, the bottom of the upper inner door is provided with an abutting part, and the upper part of the lower inner door is provided with a limiting part, wherein when the abutting part on one inner door is inserted into the limiting part on the other inner door, the sliding of the inner door can be limited.

[0021] Preferably, the inner doors include n inner doors, wherein n is a positive integer greater than 1; the limiting part is provided with (n-1) limiting parts on at least one of the inner doors, which are respectively used for inserting the abutting parts on the remaining inner doors, so that all the inner doors are stacked on the door frame.

[0022] Preferably, when all the inner doors are completely unfolded on the door frame, the opening side of each storage space in the chamber is in sealing fit with only one inner door, and when the inner door is completely opened and limited in sliding by another inner door, only one storage space is opened.

[0023] Preferably, the outer periphery of all the inner doors is sleeved with a sealing part in sealing fit with the door frame.

[0024] The application also provides a refrigeration / freezing chamber including a chamber door and the door body assembly.

[0025] The application also provides a refrigerator including a cabinet and the refrigeration / freezing chamber on the cabinet.

[0026] The door body assembly, the refrigeration / freezing chamber and the refrigerator provided by the application have the following beneficial effects compared with the prior art: at least two inner doors are arranged in the chamber door of the refrigeration / freezing chamber, and when all the inner doors are unfolded on the door frame, the entire chamber can be sealed, and even when the chamber door is opened, the inner doors in the unfolded state can prevent cold air from leaking. When different storage spaces in the chamber need to be opened, the corresponding door body can be pushed or pulled to slide on the door frame, and the corresponding part of the chamber is opened, and at the same time, the sliding connection between the adjacent inner doors does not affect the sliding of any inner door, and the cold air loss between the inner doors is reduced, the opening space of the chamber to the outside is reduced, and the energy consumption is reduced.

[0027] The freezing / refrigerating compartment has a compartment door and the door body assembly, the door body assembly is located in the compartment door, realizes the partition storage and taking of the articles, and can reduce the opening space of the compartment to the outside and reduce the energy consumption when the door is opened. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0029] Figure 1 It is a schematic diagram of the overall assembly structure of the refrigerator;

[0030] Figure 2 It is a schematic diagram of the exploded structure of the first inner door;

[0031] Figure 3 It is a schematic diagram of the exploded structure of the second inner door;

[0032] Figure 4 It is a schematic diagram of the exploded structure of the third inner door;

[0033] Figure 5 It is a schematic diagram of the structure of the refrigerator inner door frame;

[0034] Figure 6 It is a schematic diagram of the structure of the inner side of the door frame;

[0035] Figure 7 It is Figure 5 a partial enlarged view of A in FIG. 8;

[0036] Figure 8 It is a schematic diagram of the cooperation structure of the door frame and the door body assembly;

[0037] Figure 9 It is Figure 8 a partial enlarged view of A in FIG. 8;

[0038] Figure 10 It is Figure 8 a partial enlarged view of B in FIG. 8;

[0039] Figure 11 It is Figure 8 a partial enlarged view of C in FIG. 8;

[0040] Figure 12 It is a front view of the door body assembly after connection;

[0041] Figure 13 It is a side view of the door body assembly after connection;

[0042] Figure 14 is a plan view of the door body assembly after connection;

[0043] Figure 15 is Figure 14 is an enlarged view of A in FIG. 4;

[0044] Figure 16 is a front structural view of all the inner doors overlapped together;

[0045] Figure 17 is Figure 16 is an enlarged view of A in FIG. 6;

[0046] Figure 18 is a side structural view of all the inner doors overlapped together;

[0047] Figure 19 is a mode schematic view when the first inner door starts;

[0048] Figure 20 is a mode schematic view when the second inner door starts;

[0049] Figure 21 is a mode schematic view when the third inner door starts.

[0050] 1, cabinet; 1-1, refrigeration compartment; 1-2, freezing compartment; 1-21, tank groove; 2, middle beam; 3, freezing compartment door; 4, door frame; 4-1, first inner door fixing hole; 4-2, second inner door fixing hole; 4-3, upper fixing hole; 4-4, lower fixing hole; 4-5, accommodating groove; 4-51, flared groove; 5, first inner door; 5-1, first handle; 5-2, first positioning column; 5-3, compression spring; 5-4, first inner door body; 5-41, first sliding groove; 5-42, first slot hole; 5-5, first sealing ring; 6, second inner door; 6-1, second handle; 6-2, second positioning column; 6-3, second inner door body; 6-31, second sliding groove; 6-32, first limiting groove; 6-33, second slot hole; 6-34, second sliding rail; 6-4, second sealing ring; 7, third inner door; 7-1, third handle; 7-2, third positioning column; 7-3, third inner door body; 7-31, second limiting groove; 7-32, third limiting groove; 7-33, third slot hole; 7-34, second sliding rail; 7-4, third sealing ring. DETAILED DESCRIPTION

[0051] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0052] In the description of the present application, it should be understood that the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing 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 present application. In the description of the present application, "a plurality of" means two or more, unless otherwise specified.

[0053] The door body assembly of the present application is provided in the room door of the freezing / chilling compartment, which realizes the partitioned storage and taking of articles, reduces the opening space of the compartment to the outside, and reduces energy consumption.

[0054] The following will be described in combination with Figure 1 -- Figure 18 The technical solutions provided by the present application will be described in more detail.

[0055] As shown in Figures 1-18 The present embodiment provides a door body assembly, which includes at least two inner doors in the room door of the compartment. All the inner doors are slidably connected with the door frame 4, and can seal the compartment when fully expanded on the door frame 4. When any inner door is pushed or pulled, it can slide along another adjacent inner door, and then open or close at least part of the compartment when the room door is opened.

[0056] The above-mentioned compartment can be a freezing compartment 1-2 or a chilling compartment 1-1, as shown in Figure 1 The freezing compartment 1-2 in the present embodiment is provided with a room door and the above-mentioned door body assembly in the room door. As shown in Figure 1 The existing refrigerator includes a freezing compartment 1-2 and a chilling compartment 1-1, which are separated by a middle beam 2.

[0057] The door body assembly of the present embodiment is provided with at least two inner doors in the room door of the freezing / chilling compartment. When all the inner doors are slid to the fully expanded state on the door frame 4, the entire compartment can be sealed. Even when the room door of the compartment is opened, the inner doors in the fully expanded state can prevent cold air from leaking. When different storage spaces in the compartment need to be opened, the corresponding door body can be pushed or pulled to slide on the door frame 4, thereby opening the corresponding part of the compartment. At the same time, since the adjacent inner doors are slidably connected, the sliding of any inner door is not affected, and the loss of cold air between the inner doors is reduced, the opening space of the compartment to the outside is reduced, and the energy consumption is reduced.

[0058] As an optional implementation, the room in this embodiment has one or more storage spaces. When all storage spaces are arranged vertically, all inner doors can slide vertically on the door frame 4; when all storage spaces are arranged horizontally, all inner doors can slide horizontally on the door frame 4. Figure 1 As shown, Figure 1 The storage spaces in the freezer compartments 1-2 are arranged vertically, therefore, all the inner doors in this embodiment can slide vertically.

[0059] In existing technologies, freezer compartment 1-2 and refrigerator compartment 1-1 typically have two or more drawers, with storage space formed within them for storing items. Users can pull out different drawers to retrieve items from the corresponding storage space in the refrigerator. The drawers' function is merely to categorize and store items; when the compartment door is opened, the drawers cannot seal the interior. In existing technologies, opening the compartment door exposes the entire space of either freezer compartment 1-2 or refrigerator compartment 1-1, resulting in significant cold air leakage.

[0060] In this embodiment, preferably, the inner door is a transparent door, so that when the door of the corresponding room is opened, such as Figure 1 When freezer compartment door 3 is opened, the door assembly seals freezer compartments 1-2, reducing cold loss. Users can observe which drawer contains the desired item through the transparent inner door, slide the corresponding inner door to open the corresponding drawer, and retrieve the item. This convenient design reduces the amount of open space in the compartment.

[0061] Example 1

[0062] See Figures 1-4 , Figure 12 , Figure 13 As shown, the freezer compartments 1-2 of a common refrigerator have three drawers (storage spaces). Therefore, referring to the attached drawings, this embodiment will be described using the example of a door assembly including three inner doors, but the number of inner doors is not specifically limited.

[0063] The inner door assembly in this embodiment includes a first inner door 5, a second inner door 6, and a third inner door 7. Adjacent inner doors are slidably connected to ensure smooth movement and sealing between adjacent inner doors.

[0064] As an optional implementation, when all inner doors are fully extended on the door frame 4, only one inner door is sealed to the opening side of each storage space in the room. When an inner door is fully opened and its sliding is restricted by another inner door, only one storage space is open.

[0065] See Figure 1 , Figure 8As shown, the first inner door 5, the second inner door 6 and the third inner door 7 of the embodiment can seal the three storage spaces (storage spaces are usually formed in the drawers) in the chamber when the first inner door 5, the second inner door 6 and the third inner door 7 are fully unfolded on the door frame 4. When the uppermost storage space needs to be opened, slide the first inner door 5, and the first inner door 5 slides downward and opens the uppermost drawer to take the items. When the middle storage space needs to be opened, slide the second inner door, and the second inner door slides downward or upward and opens the middle drawer to take the items. When the lowermost storage space needs to be opened, slide the third inner door 7, and the third inner door 7 slides upward and opens the lowermost drawer to take the items. Similarly, when the uppermost and middle storage spaces need to be opened at the same time, slide the first inner door 5 and the second inner door 6 downward at the same time.

[0066] The above structure has the advantages that the storage spaces (drawers) in the chamber correspond to the inner doors one by one, and the use is convenient. The cold energy leakage in the chamber is reduced, and the drawers in the chamber are not affected.

[0067] In order to realize the sliding connection between the adjacent inner doors, as an optional implementation, refer to Figures 2-4 , Figures 9-13 As shown, one of the two adjacent inner doors is provided with a sliding groove, and the other is provided with a sliding block extending into the sliding groove. The cooperation structure of the sliding groove and the sliding block realizes the sliding connection between the two adjacent inner doors.

[0068] Specifically, refer to Figures 2-4 、 Figure 12 、 Figure 13 As shown, the first inner door 5 includes a first inner door body 5-4 and a first sliding groove 5-41 located on the first inner door body 5-4; the second inner door 6 includes a second inner door body 6-3 and a first sliding rail 6-34 and a second sliding groove 6-31 located on the second inner door body 6-3; the third inner door 7 includes a third inner door body 7-3 and a second sliding rail 7-34 located on the third inner door body 7-3; wherein: the first sliding rail 6-34 is in sliding connection with the first sliding groove 5-41, so that the first inner door body 5-4 can slide downward along the first sliding rail 6-34 on the second inner door body 6-3 and be opened; the second sliding groove 6-31 is in sliding connection with the second sliding rail 7-34, so that the second inner door body 6-3 can slide downward along the second sliding rail 7-34 on the third inner door body 7-3 and be opened, or so that the third inner door body 7-3 can slide upward along the second sliding groove 6-31 on the second inner door body 6-3 and be opened.

[0069] The sliding connection between the adjacent inner doors connects all the inner doors together. When any inner door is pushed, the inner door slides along the door frame 4 and the inner door adjacent thereto, preventing the cold energy from leaking between the inner doors and the inner door, and ensuring the smoothness and sealing performance of the inner door sliding.

[0070] To facilitate the installation of the aforementioned door components, a specific implementation method for the door frame 4 is provided below:

[0071] See Figures 5-7 As shown, one or two opposite side walls of the door frame 4 are provided with receiving grooves 4-5, and all connected inner doors are arranged along the width direction of the receiving grooves 4-5 so that any two inner doors are on different sliding planes.

[0072] After all the inner doors are connected, they are located in the receiving groove 4-5. Pushing any one of the inner doors will allow it to slide within the receiving groove 4-5. The sliding of each inner door does not affect the others. You can open only one inner door or open two or more inner doors at the same time, which is convenient to use.

[0073] See Figure 5 , Figure 7 As shown, the bottom of the door frame 4 is provided with a box liner groove 1-21 that communicates with the receiving groove 4-5. The bottom of the lowest inner door can be sealed and fitted into the box liner groove 1-21 to ensure sealing performance.

[0074] To facilitate the installation of all inner doors into the receiving slots 4-5 after connection, as an optional implementation, see [link to implementation details]. Figure 5 , Figure 6 As shown, the receiving groove 4-5 is connected to a flared groove 4-51, which is connected to the outer edge of the door frame 4. The flared groove 4-51 is located at the upper part of the receiving groove 4-5 for easy installation. All connected inner doors can be inserted into the receiving groove 4-5 through the flared groove 4-51 and assembled in place within the receiving groove 4-5. The structure of the flared groove 4-51 does not affect the sliding of the inner doors within the receiving groove 4-5, and facilitates the insertion of all connected inner doors into the receiving groove 4-5 through the flared groove 4-51 and their installation in place within the receiving groove 4-5.

[0075] Example 2

[0076] This embodiment is an improvement on the above embodiment. As mentioned above, the inner door in this embodiment can slide left and right or up and down on the door frame 4. When the inner door slides up and down along the door frame 4, in order to open the corresponding storage space (drawer) when the inner door is open, and to ensure that the inner door can cooperate with the interior wall to seal the storage space when closed, all inner doors in this embodiment have a locked state and an active state with the door frame 4. When locked, the inner door is locked to the door frame 4; when active, the inner door can slide up and down or left and right on the door frame 4.

[0077] When the inner door and door frame 4 are locked, the inner door will not slide and will seal the compartment; when the inner door and door frame 4 are in the open state, pushing the inner door will cause it to slide on the door frame 4, thereby opening the corresponding storage space of the compartment.

[0078] In order to enable the inner door and the door frame 4 to form the aforementioned locked and active states, as an optional implementation, see [link to implementation details]. Figure 5 , Figure 6 As shown, fixing holes are provided on the door frame 4, combined with Figures 2-4 , Figure 12 As shown, the inner door includes an inner door body and a locking assembly, wherein: the locking assembly is retractably mounted on the inner door body, and when in the locked state, at least a portion of the locking assembly is inserted into the corresponding fixing hole; pulling the locking assembly can disengage the locking assembly from the fixing hole and put the corresponding inner door and the door frame 4 in an active state.

[0079] When the locking component is inserted into the corresponding fixing hole, the inner door locks to the door frame 4, preventing it from opening even under external force, thus ensuring the compartment's sealing performance and preventing cold air leakage. When the locking component disengages from the corresponding fixing hole, the inner door can slide under external pushing or pulling, opening the corresponding storage space inside the compartment. This structure ensures that the inner door can cooperate with the interior wall of the compartment to seal the corresponding storage space when closed, while simultaneously ensuring that the inner door can be easily opened when the corresponding storage space inside the compartment needs to be accessed.

[0080] This embodiment provides a specific implementation method for a locking component:

[0081] See Figures 2-4 The inner door body has slots, the openings of which are located on the side wall of the inner door body. (See also...) Figures 2-4 , Figure 16 , Figure 17 As shown, the locking assembly includes a handle and a positioning post, wherein: the handle and the positioning post are fixedly connected and both are slidably disposed on the inner door body, one end of the positioning post is located in the slot of the inner door body, and when in the locked state, the other end of the positioning post extends out of the slot and inserts into the corresponding fixing hole; pulling the handle can make the positioning post slide and disengage from the fixing hole, so that the inner door and the door frame 4 are in an active state.

[0082] The positioning pin is inserted into the corresponding fixing hole of the receiving groove 4-5, which can lock the corresponding inner door and the door frame 4, prevent the inner door from sliding, and ensure good sealing performance. The handle is fixedly connected to the positioning pin, and the handle is set perpendicular to the positioning pin, so that the user can hold the handle and pull the positioning pin away from the fixing hole. When the positioning pin is released from the corresponding fixing hole, the corresponding inner door and the door frame 4 can be unlocked, and the inner door can slide within the receiving groove 4-5.

[0083] For details, see Figure 2As shown, the locking assembly of the first inner door 5 comprises a first handle 5-1 and a first positioning column 5-2. A first slot hole 5-42 is arranged on the first inner door body 5-4. The first handle 5-1 is fixedly connected with the first positioning column 5-2, and one end of the first positioning column 5-2 is arranged in the first slot hole 5-42. Referring to Figure 3 , the locking assembly of the second inner door 6 comprises a second handle 6-1 and a second positioning column 6-2. A second slot hole 6-33 is arranged on the second inner door body 6-3. The second handle 6-1 is fixedly connected with the second positioning column 6-2, and one end of the second positioning column 6-2 is arranged in the second slot hole 6-33. Referring to Figure 4 , the locking assembly of the third inner door 7 comprises a third handle 7-1 and a third positioning column 7-2. A third slot hole 7-33 is arranged on the third inner door body 7-3. The third handle 7-1 is fixedly connected with the third positioning column 7-2, and one end of the third positioning column 7-2 is arranged in the third slot hole 7-33.

[0084] After the inner door is slid into position, the handle can be pulled or pushed again to allow the positioning column to be inserted into the corresponding fixed hole again, so that the inner door is locked with the door frame 4 again. Alternatively, the embodiment provides a specific implementation mode which is more convenient for the inner door to be locked with the door frame 4 again:

[0085] Referring to Figures 2-4 , Figures 19-21 As shown, the locking assembly further comprises an elastic part. The elastic part can be a compression spring 5-3 or the like elastic member. The compression spring 5-3 serving as the elastic part is fixed in the slot hole. One end of the positioning column located in the slot hole abuts against the corresponding compression spring 5-3. Pulling the handle can compress the elastic part and make the positioning column disengage from the fixed hole. After the external force acting on the handle is removed, the compression spring 5-3 serving as the elastic part can push the positioning column to be inserted into the corresponding slot hole.

[0086] Specifically, referring to Figure 2 As shown, one end of the first positioning column 5-2 is connected with the compression spring 5-3 and arranged in the first slot hole 5-42. Referring to Figure 3 As shown, one end of the second positioning column 6-2 is connected with the compression spring 5-3 and arranged in the second slot hole 6-33. Referring to Figure 4 As shown, one end of the third positioning column 7-2 is connected with the compression spring 5-3 and arranged in the third slot hole 7-33.

[0087] Referring to Figures 19-21, pull the corresponding handle away from the corresponding fixed hole, the positioning column can slide in the corresponding slot hole along with the handle, so as to compress the compression spring 5-3, the positioning column is separated from the corresponding fixed hole, and then the handle is pushed upward or downward, so that the inner door can be slid upward or downward. After the inner door is slid in place, the positioning column is aligned with the corresponding fixed hole, and the elastic restoring force can push the corresponding positioning column to re-extend into the slot hole and insert into the corresponding fixed hole, so that the positioning column does not need to be manually pulled into the fixed hole, and use is facilitated.

[0088] In order to enable the inner door located at the lowermost position to be slid upward and to form a locking state and a movable state with the door frame 4, as an optional implementation, the fixed holes include an upper fixed hole 4-3 and a lower fixed hole 4-4 for fixing the inner door located at the lowermost position, wherein: when the inner door located at the lowermost position is in sealing cooperation with the inner wall of the bottom of the door frame 4, at least part of the upper locking assembly can be inserted into the lower fixed hole 4-4; when the inner door located at the lowermost position is pushed upward, at least part of the upper locking assembly can be inserted into the upper fixed hole 4-3.

[0089] Specifically, referring to Figure 6 As described above, all the fixed holes are arranged in the accommodating groove 4-5, and the fixed holes of the embodiment include a first inner door fixed hole 4-1 for fixing the first inner door body 5-4, a second inner door fixed hole 4-2 for fixing the second inner door body 6-3, and an upper fixed hole 4-3 and a lower fixed hole 4-4 for fixing the third inner door body 7-3. The upper fixed hole 4-3 and the lower fixed hole 4-4 are located on the same straight line. The first inner door fixed hole 4-1, the second inner door fixed hole 4-2, and the upper fixed hole 4-3 are located on different straight lines.

[0090] When the third inner door body 7-3 closes the storage space at the lowermost position of the compartment, the third positioning column 7-2 of the third inner door 7 is inserted into the lower fixed hole 4-4; when it is necessary to slide the third inner door body 7-3, referring to Figure 21 As shown, the third handle 7-1 is pulled away from the lower fixed hole 4-4, the third positioning column 7-2 is separated from the lower fixed hole 4-4, and then the third handle 7-1 is pushed upward, so that the third inner door body 7-3 is slid upward. After the third inner door body 7-3 is slid in place and the third positioning column 7-2 is aligned with the upper fixed hole 4-3, the external force acting on the third handle 7-1 is removed, the third positioning column 7-2 is re-inserted into the upper fixed hole 4-3 under the action of the corresponding compression spring 5-3, and the third inner door body 7-3 is overlapped with the second inner door body 6-3.

[0091] The above structure can realize upward sliding and locking of the inner door located at the lowermost position, and use is facilitated.

[0092] Embodiment three

[0093] The embodiment is an improvement based on the above embodiment. As described above, the inner door of the embodiment can slide left and right or up and down on the door frame 4. When the inner door slides up and down on the door frame 4, in order to make the inner door open only one corresponding storage space (drawer) when the inner door is opened, prevent the uppermost inner door from directly sliding to the position overlapping with the lowermost inner door under the action of gravity.

[0094] As an optional implementation, the bottom of the upper inner door of the two adjacent inner doors is provided with an abutting portion, and the upper portion of the lower inner door is provided with a limiting portion. When the abutting portion of one inner door is inserted into the limiting portion of the other inner door, the inner door can be limited to continue sliding. In this way, the upper inner door of the two adjacent inner doors can slide to a position flush with the upper edge of the lower inner door; or the lower inner door can slide to a position flush with the lower edge of the upper inner door.

[0095] Referring to Figures 2-4 The limiting portion in the embodiment is a groove structure, and the handle on the inner door serves as the abutting portion for inserting into the groove structure to limit the continuous sliding of the corresponding inner door body. No additional structure is needed as the abutting portion to cooperate with the limiting portion, and the structure is simple and convenient to use.

[0096] Referring to Figures 2-4 、 Figures 14-17 As shown in the figure, the second inner door body 6-3 is provided with a first limiting groove 6-32. When the first inner door body 5-4 slides to the first handle 5-1 inserted into the first limiting groove 6-32, the first inner door body 5-4 slides to the position overlapping with the second inner door body 6-3, and the continuous sliding of the first inner door body 5-4 is limited. The third inner door body 7-3 is provided with a second limiting groove 7-31 and a third limiting groove 7-32. When the second inner door body 6-3 slides to the second handle 6-1 inserted into the third limiting groove 7-32, the second inner door body 6-3 slides to the position overlapping with the third inner door body 7-3, and the continuous sliding of the second inner door body 6-3 is limited. At the same time, when the first inner door body 5-4 slides to the first handle 5-1 inserted into the second limiting groove 7-31, the first inner door body 5-4 and the second inner door body 6-3 slide to the position overlapping with the third inner door body 7-3, and the second limiting groove 7-31 limits the continuous sliding of the first inner door body 5-4.

[0097] The abutting portion can be provided with one or more than two on the same inner door body. As an optional implementation, the inner door includes n, where n is a positive integer greater than 1; and the limiting portion is provided with (n-1) on at least one of the inner doors, respectively for inserting the abutting portion on the remaining inner doors, so that all the inner doors overlap on the door frame 4.

[0098] Referring to Figures 2-4In this embodiment, the inner door includes three parts. The third inner door body 7-3, located at the bottom, has two limiting parts. Thus, when the first inner door body 5-4 slides to the position where the first handle 5-1 engages with the first limiting groove 6-32, and the second inner door body 6-3 slides to the position where the second handle 6-1 engages with the third limiting groove 7-32, the first handle 5-1 can simultaneously engage with the second limiting groove 7-31. Figures 16-18 As shown, the three inner doors are stacked together on the door frame 4, with the upper edges of the first inner door body 5-4, the second inner door body 6-3 and the third inner door body 7-3 aligned. This allows the storage spaces corresponding to the first inner door body 5-4 and the second inner door body 6-3 to be opened simultaneously, making them more flexible and convenient to use.

[0099] To ensure the sealing performance between the inner door and the door frame 4, as an optional implementation method, see [link to implementation details]. Figures 2-4 , Figures 9-11 All inner doors are fitted with a sealing part around their outer perimeter that seals against the door frame 4. This sealing part can be a sealing ring. See also Figure 2 The outer periphery of the first inner door body 5-4 is fitted with a first sealing ring 5-5; see also Figure 3 The second inner door body 6-3 is fitted with a second sealing ring 6-4 around its outer periphery; see also Figure 4 The outer periphery of the third inner door body 7-3 is fitted with a third sealing ring 7-4. The above structure can ensure that each inner door body can be sealed and fitted with the door frame 4, reducing cold leakage.

[0100] In this embodiment, when it is necessary to retrieve items from the top storage space (drawer) of the door assembly, see [reference needed]. Figure 19 As shown, pulling the first handle 5-1 away from the first inner door fixing hole 4-1 causes the first positioning post 5-2 to compress the compression spring 5-3, disengaging the first positioning post 5-2 from the first inner door fixing hole. Under the action of gravity and downward external force, the first inner door body 5-4 slides along the first slide rail 6-34 until its upper edge is flush with the upper edge of the second inner door body 6-3 and stops sliding. At this time, the first handle 5-1 is fixedly limited in the first limiting groove 6-32 of the second inner door body 6-3, completing the opening and fixing of the first inner door body 5-4. If it is necessary to close the first inner door body 5-4, simply reverse the operation.

[0101] See Figure 20When the article in the middle drawer needs to be taken, the second handle 6-1 is pulled away from the second inner door fixed hole 4-2, the second positioning column 6-2 makes the compression spring 5-3 back compression, the second positioning column 6-2 is separated from the second inner door fixed hole, the second inner door body 6-3 stops sliding along the second sliding rail 7-34 under the action of gravity and downward external force to the position where the upper edge of the second inner door body 6-3 is flush with the upper edge of the third inner door body 7-3, at this time, the second handle 6-1 is fixedly limited in the second limiting groove 7-31 of the third inner door body 7-3, and the opening and fixing of the second inner door body 6-3 are completed; if the second inner door body 6-3 needs to be closed, only the reverse operation is needed.

[0102] Referring to Figure 21 When the article in the lowermost drawer needs to be taken, the third handle 7-1 is pulled away from the lower fixed hole 4-4, the third positioning column 7-2 makes the compression spring 5-3 compression, the third positioning column 7-2 is separated from the lower fixed hole 4-4, the third inner door body 7-3 stops sliding along the second sliding groove 6-31 under the action of upward thrust to the position where the lower edge of the third inner door body 7-3 is flush with the lower edge of the second inner door body 6-3, at this time, the third handle 7-1 is released, the third positioning column 7-2 is inserted into the upper fixed hole 4-3 for fixing under the rebound force of the compression spring 5-3, the opening and fixing of the third inner door body 7-3 are realized, and if the third inner door body 7-3 needs to be closed, only the reverse operation is needed.

[0103] Therefore, the cold storage / freezing compartment can reduce the loss of cold energy as much as possible when the compartment door is opened, realize the partitioned taking of articles, and reduce energy consumption. When the sealing strip of the cold storage / freezing compartment door is not sealed tightly, the door body assembly can further play a sealing role to prevent cold air leakage.

[0104] Embodiment four

[0105] The embodiment provides a cold storage / freezing compartment which comprises a compartment door and the door body assembly.

[0106] The freezing / cold storage compartment has the compartment door and the door body assembly, the door body assembly is located in the compartment door, partitioned storage and taking of articles are realized, the opening space of the compartment to the outside can be reduced, and energy consumption can be reduced.

[0107] Embodiment five

[0108] The embodiment provides a refrigerator which comprises the cold storage / freezing compartment.

[0109] The refrigerator has the freezing / cold storage compartment, the door body assembly is located in the compartment door, partitioned storage and taking of articles are realized, the opening space of the corresponding compartment to the outside can be reduced, and energy consumption of the refrigerator can be reduced.

[0110] In the description of the specification, specific features, structures, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0111] In the description of the specification, the description referring 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 connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Furthermore, the skilled person in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0112] The above merely describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A door assembly comprising: The door frame is provided with at least two inner doors located in the chamber door, all the inner doors are in sliding connection with the door frame, all the inner doors can seal the chamber when fully unfolded on the door frame, and any inner door can make the adjacent inner door slide when pushed or pulled, thereby opening or closing at least part of the chamber when the chamber door is opened; One of the two adjacent inner doors is provided with a sliding groove, and the other is provided with a sliding block extending into the sliding groove, and the matching structure of the sliding groove and the sliding block enables the two adjacent inner doors to be in sliding connection; The bottom of the upper inner door of the two adjacent inner doors is provided with an abutting portion, and the upper portion of the lower inner door is provided with a limiting portion, and when one of the inner doors slides to the position where the abutting portion on it is inserted with the limiting portion on the other inner door, the sliding of the inner door is limited; When all the inner doors are fully unfolded on the door frame, only one inner door is sealingly matched with the opening side of each storage space in the chamber, and when the inner door is fully opened and limited in sliding by another inner door, only one storage space is opened; All the inner doors and the door frame have a locking state and a movable state, and when in the locking state, the inner door is locked on the door frame; when in the movable state, the inner door can slide up and down on the door frame; The door frame is provided with a fixed hole, and the inner door comprises an inner door body and a locking assembly, wherein: The locking assembly is retractably arranged on the inner door body, at least part of the locking assembly is inserted into the corresponding fixed hole when in the locking state, and pulling the locking assembly can make the locking assembly separate from the fixed hole and make the corresponding inner door and the door frame in the movable state.

2. The door assembly of claim 1, wherein, The chamber has one or more than two storage spaces, and when all the storage spaces are arranged vertically, all the inner doors can slide up and down on the door frame.

3. The door assembly of claim 1, wherein, One or both opposite side walls of the door frame are provided with a receiving groove, and all the connected inner doors are arranged in the width direction of the receiving groove, so that any two inner doors are in different sliding planes.

4. The door assembly of claim 3, wherein, The receiving groove is communicated with an expanded groove, and the expanded groove is communicated with the outer edge of the door frame, and all the connected inner doors can be inserted into the receiving groove from the expanded groove and assembled in place in the receiving groove.

5. The door assembly of claim 1, wherein, The locking assembly comprises a handle and a positioning column, wherein: The handle and the positioning column are fixedly connected and both are slidably arranged on the inner door body, one end of the positioning column is located in the inner door body, the other end of the positioning column extends out of the inner door body and is inserted into the corresponding fixed hole when in the locking state, and pulling the handle can make the positioning column slide and separate from the fixed hole, so that the inner door and the door frame are in the movable state.

6. The door assembly of claim 5, wherein, The inner door body is provided with a slot hole, and the opening of the slot hole is located on the side wall of the inner door body; The locking assembly further comprises an elastic part fixed in the slot hole, one end of the positioning column in the slot hole abutting against the elastic part, pulling the handle can make the positioning column compress the elastic part and disengage from the fixing hole; after the external force acting on the handle is removed, the elastic part can push the positioning column to insert into the corresponding slot hole.

7. The door assembly of any of claims 4-6, wherein, The fixing hole comprises an upper fixing hole and a lower fixing hole for fixing the lowermost inner door, wherein: When the lowermost inner door is in sealing cooperation with the inner wall of the bottom of the door frame, at least part of the locking assembly on the lowermost inner door can be inserted into the lower fixing hole; when the lowermost inner door is pushed upward, at least part of the locking assembly on the lowermost inner door can be inserted into the upper fixing hole.

8. The door assembly of claim 7, wherein, The inner door comprises n, wherein n is a positive integer greater than 1; the limiting part is provided with (n-1) on at least one of the inner doors, respectively for inserting the abutting part on the remaining inner doors, so that all the inner doors are stacked on the door frame.

9. The door assembly of claim 1, wherein, The outer periphery of all the inner doors is sleeved with a sealing part in sealing cooperation with the door frame.

10. A refrigerator / freezer compartment characterized by, The door body assembly comprises a compartment door and any one of the door body assemblies according to claims 1-9.

11. A refrigerator characterized by comprising: The refrigerator / freezer compartment comprises a cabinet and the refrigerator / freezer compartment according to claim 10, and the refrigerator / freezer compartment is located on the cabinet.

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