Refrigerator

Abstract

The utility model relates to a refrigerator. The refrigerator comprises a vacuum cabinet, the vacuum cabinet comprises a cabinet body arranged on the inner side of the box door, and a rotating seat is arranged on the front wall of the cabinet body in a protruding mode; the cabinet door is rotationally connected to the cabinet body, and the cabinet door comprises a door shell, a door cover and reinforcing iron; the back face of the door shell is used for opening or closing the storage cavity. The door cover covers the front side of the door shell; the reinforcing iron is arranged on the front wall of the door shell and arranged between the door shell and the door cover. The reinforcing iron is arranged on the front wall of the door shell, so that the structural strength of the cabinet door is enhanced. When the storage cavity in the cabinet body is vacuumized, the shape of the cabinet door can be kept, and the cabinet door is prevented from deforming. And the reinforcing iron is arranged between the door shell and the door cover, so that the appearance of the cabinet door can be kept attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a refrigerator. Background Art

[0002] A refrigerator is a container that uses the phase change of a refrigerant to create a low-temperature environment for storing food. It is one of the indispensable household appliances for people's home life. As people's living standards improve, the requirements for refrigerators are getting higher and higher.

[0003] In the related refrigerator, the refrigerator usually includes a box body and a door, and a storage compartment is formed in the box body. The door is arranged at the front side of the box body, and the door is used to open and close the storage compartment. The refrigerator is usually also provided with a vacuum preservation module for vacuum preservation of food.

[0004] In the existing refrigerator industry, vacuum fresh-keeping modules are usually vacuum drawers and vacuum fresh-keeping boxes. Vacuum drawers are usually arranged inside the refrigerator body, which requires space in the storage compartment and is relatively expensive. Vacuum fresh-keeping boxes are usually arranged on the door of the refrigerator, but the storage space of vacuum fresh-keeping boxes is small, and the structural strength is insufficient after the space is expanded. Utility Model Content

[0005] The utility model aims to provide a refrigerator to optimize the vacuum preservation structure in the refrigerator and increase the vacuum preservation space.

[0006] The utility model also aims to provide a refrigerator to optimize the vacuum preservation structure in the refrigerator and improve the structural strength of the vacuum preservation module.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] According to one aspect of the utility model, the utility model provides a refrigerator, which comprises: a box body, which forms an outer shell of the refrigerator, and a storage chamber is arranged in the box body; a box door, which is arranged on the box body, and the box door is used to open or close the storage chamber; a vacuum cabinet, which is arranged on the inner side of the box door, and a storage cavity is arranged in the vacuum cabinet; when the box door is closed, the vacuum cabinet can be arranged in the storage chamber; a vacuum pumping component, which is arranged in the box door, the vacuum pumping component is connected to the storage cavity, and the vacuum pumping component is used to vacuum the storage cavity; wherein the vacuum cabinet comprises: a cabinet body, which is arranged on the inner side of the box door, and the storage cavity is formed inside the cabinet body; a cabinet door, which is rotatably connected to the cabinet body, and the cabinet door is used to open or close the storage cavity; the cabinet door comprises a door shell, a door cover and a reinforcing iron; the back side of the door shell is used to open or close the storage cavity; the door cover is arranged on the front side of the door shell; the reinforcing iron is arranged on the front wall of the door shell and between the door shell and the door cover.

[0009] In some embodiments of the present application, a reinforcing rib is protruded from the front wall of the door shell, and the reinforcing iron is fixed on the reinforcing rib of the door shell.

[0010] In some embodiments of the present application, a first positioning hole is provided on the reinforcing rib of the door shell, a first mounting hole corresponding to the first positioning hole is opened on the reinforcing iron, and the reinforcing iron is fixed to the first positioning hole through the first mounting hole.

[0011] In some embodiments of the present application, a plurality of the first mounting holes are formed on the reinforcing iron; a plurality of the first positioning holes are formed on the reinforcing rib of the door shell, and the plurality of the first positioning holes are arranged in one-to-one correspondence with the plurality of the first mounting holes.

[0012] In some embodiments of the present application, the reinforcing iron is arranged to extend in a long strip shape, and the reinforcing iron is extended along the direction of the peripheral edge of the door shell.

[0013] In some embodiments of the present application, a plurality of the reinforcing irons are provided, and the plurality of the reinforcing irons are respectively arranged at a plurality of side edges of the door shell.

[0014] In some embodiments of the present application, a first observation port is provided on the door shell, and a second observation port is provided on the door cover and is arranged opposite to the first observation port; the cabinet door includes an observation window, and the observation window is made of a transparent or translucent material; the observation window is clamped between the door shell and the door cover, and the observation window is arranged between the first observation port and the second observation port, and the first observation port and the second observation port are sealed and isolated.

[0015] In some embodiments of the present application, the observation window includes an observation portion and a clamping plate portion; the observation portion is arranged opposite to the first observation port and the second observation port; the clamping plate portion is circumferentially arranged around the observation portion, and the clamping plate portion is clamped and fixed between the front wall of the door shell and the rear wall of the door cover.

[0016] In some embodiments of the present application, the observation portion is protruded from the front side of the clamping plate portion, the observation portion is embedded in the second observation port, and is protruded from the front wall of the door cover.

[0017] In some embodiments of the present application, a second positioning hole is provided on the reinforcing rib of the door shell, a second mounting hole corresponding to the second positioning hole is opened on the clamping plate portion, and the clamping plate portion is fixed to the second positioning hole through the second mounting hole.

[0018] In some embodiments of the present application, the cabinet door includes a lock tongue, one end of which is fixed between the reinforcement rib of the door shell and the reinforcement iron, and the other end of the lock tongue passes through the door shell and protrudes out of the back side of the door shell.

[0019] The embodiments of the present invention have the following advantages and positive effects:

[0020] In the refrigerator of the utility model embodiment, a vacuum cabinet is arranged on the inner side of the refrigerator door, and the vacuum pumping assembly in the door can be used to vacuumize the storage cavity in the vacuum cabinet, thereby realizing the vacuum preservation function without occupying the space in the storage room of the cabinet. The vacuum cabinet includes a cabinet body and a cabinet door, and the storage cavity is formed inside the cabinet body, which can form a larger storage space. The cabinet door includes a door shell, a door cover and a reinforcing iron. The storage cavity can be opened or closed using the back of the door shell. The reinforcing iron is arranged on the front wall of the door shell to strengthen the structural strength of the cabinet door. When the storage cavity inside the cabinet body is vacuumed, it is beneficial to maintain the shape of the cabinet door and prevent the cabinet door from being deformed. The reinforcing iron is arranged between the door shell and the door cover, thereby maintaining the beautiful appearance of the cabinet door. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a refrigerator according to an embodiment of the utility model.

[0022] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle box door and vacuum cabinet.

[0023] Figure 3 yes Figure 2 A schematic diagram of the decomposed structure.

[0024] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of area A in the middle.

[0025] Figure 5 yes Figure 3 Schematic diagram of the exploded structure of the middle box door.

[0026] Figure 6 yes Figure 3 Schematic diagram of the structure of the medium vacuum cabinet.

[0027] Figure 7 yes Figure 6 Schematic diagram of the structure in another state.

[0028] Figure 8 yes Figure 6 A schematic diagram of the decomposed structure.

[0029] Fig. 9 yes Figure 6 Schematic diagram of the structure from another perspective.

[0030] Fig.10 yes Fig. 9 A schematic diagram of the decomposed structure.

[0031] Fig.11 yes Figure 7Schematic diagram of the structure of the middle cabinet.

[0032] Fig.12 yes Fig.11 Schematic diagram of the structure of the middle sealing ring.

[0033] Fig.13 yes Fig.12 Cross-sectional view along the BB axis.

[0034] Fig.14 yes Figure 7 Schematic diagram of the structure of the middle cabinet door.

[0035] Fig.15 yes Fig. 9 Schematic diagram of the structure from another perspective.

[0036] Fig.16 yes Fig.14 Front view of .

[0037] Fig.17 yes Fig.16 A schematic diagram of the decomposed structure.

[0038] Fig.18 yes Fig.17 Schematic diagram of the partial decomposition structure.

[0039] Fig.19 yes Fig.16 Sectional view along CC direction.

[0040] Fig. 20 yes Fig.16 Cross-sectional view along DD direction.

[0041] Fig.21 yes Figure 8 Schematic diagram of the partial decomposition structure in.

[0042] Fig. 22 yes Fig.21 Schematic diagram of some structures in .

[0043] Fig.23 yes Fig. 22 A schematic diagram of the decomposed structure.

[0044] Fig.24 yes Fig. 22 Side view of .

[0045] Fig.25 yes Fig.24 Cross-sectional view along the EE axis.

[0046] Fig.26 yes Fig. 22 Schematic diagram of the enlarged structure of the F region in the middle.

[0047] Fig. 27 yes Fig.26 A schematic diagram of the structure in which the middle locking part and the lock tongue are engaged.

[0048] Fig.28 yes Fig. 27 A schematic diagram of the decomposed structure.

[0049] The accompanying drawings are described as follows: 100, box body; 100a, storage room; 200, box door; 201, door panel; 202, upper end cover; 203, lower end cover; 204, door liner; 2041, liner rib; 2042, support block; 2043, limit slot; 2044, support table; 301, vacuum pump; 302, vacuum pipeline; 1, cabinet body; 10, storage cavity; 101, clamping block; 102, lock hole; 103, vacuum pipe; 104, pressure relief hole; 11, sealing ring; 111, connecting part; 112, elastic sealing part; 1121, elastic wall; 1122, sealing wall; 12, rotating seat; 2, cabinet door; 21, lock tongue; 211, lock mouth; 22, avoidance groove; 23, door shell; 231, sealing surface; 232, give way groove ; 233, first positioning hole; 234, first observation port; 235, second positioning hole; 236, limiting ring; 237, sealing groove; 24, door cover; 241, flange plate; 242, second observation port; 25, reinforcing iron; 251, first mounting hole; 26, observation window; 261, observation part; 262, clamping part; 263, second mounting hole; 27, sealing member; 271, positioning part; 272, clamping part; 3, side panel; 30, mounting cavity; 31, first buckle; 32, missing area; 33, button hole; 4, top cover; 41, second buckle; 5, pressure relief valve; 6, connecting rod; 61, connecting arm; 62, button arm; 63, locking part; 631, locking block; 632, extrusion surface; 64, connecting rib; 7, button assembly; 8, elastic member. DETAILED DESCRIPTION

[0050] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0051] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] In the existing refrigerator industry, vacuum fresh-keeping modules are usually vacuum drawers and vacuum fresh-keeping boxes. Vacuum drawers are usually arranged inside the refrigerator body, which requires space in the storage compartment and is relatively expensive. Vacuum fresh-keeping boxes are usually arranged on the door of the refrigerator, but the storage space of vacuum fresh-keeping boxes is small and the operation convenience is poor.

[0055] Figure 1 It is a structural schematic diagram of a refrigerator according to an embodiment of the utility model.

[0056] See also Figure 1 As shown, the refrigerator provided by the embodiment of the utility model may include a box body 100. The box body 100 may adopt a hollow structure of a rectangular parallelepiped. It is understandable that in other embodiments, the box body 100 may also adopt a hollow shell structure of other shapes.

[0057] In some embodiments, a storage room 100a may be formed in the box 100. The storage room 100a may be used as an independent storage space, and may be used as a refrigerating room, a temperature-changing room, a freezing room, etc., to meet different storage requirements such as refrigeration and freezing according to different types of stored items.

[0058] In some embodiments, a plurality of storage chambers 100a may be provided in the housing 100. The plurality of storage chambers 100a may be arranged in the housing 100 in a manner of being divided up and down or left and right.

[0059] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle box door 200 and the vacuum cabinet.

[0060] See also Figure 1 to Figure 2 As shown, in some embodiments, a door 200 may be provided on the front side of the cabinet 100. The door 200 may be used to open and close the storage chamber 100a. The door 200 may be connected to the cabinet 100 by a hinge, so that the door 200 of the refrigerator can rotate around the axis of the hinge to open and close the door 200 of the refrigerator, thereby opening or closing the corresponding storage chamber 100a.

[0061] In some embodiments, multiple doors 200 may be provided. Multiple doors 200 may be provided in one-to-one correspondence with multiple storage chambers 100a. It should be noted that, in other embodiments, multiple doors 200 may also open and close a storage chamber 100a at the same time.

[0062] See also Figure 1 to Figure 2 As shown, in some embodiments, a box liner (not shown) may be provided in the box body 100. A storage room 100a may be formed in the box liner. Multiple box liner may be provided in the box body 100. Multiple box liner may be arranged in the box body 100 in an upper and lower partition or a left and right partition. One or more storage rooms 100a may be formed in each box liner.

[0063] In some embodiments, a foam layer (not shown) may be provided in the box body 100. The foam layer may be formed in the space between the outer wall of the box liner and the inner wall of the box body 100. The foam layer may be used to insulate the box liner and the interior of the storage chamber 100a to achieve the heat preservation performance of the refrigerator.

[0064] See also Figures 1 to 4 As shown, in some embodiments, a refrigeration system (not shown) may be provided in the cabinet 100. The refrigeration system may be provided inside the cabinet 100. The refrigeration system may be used to provide cold air inside the refrigerator to maintain a low temperature environment in each storage chamber 100a.

[0065] In some embodiments, the refrigeration system may include a compressor, a condenser, a throttling device, and an evaporator. The compressor, the condenser, the throttling device, and the evaporator may be sequentially connected to form a refrigeration circuit. The refrigerant may circulate in the refrigeration circuit to achieve refrigeration of the interior of the box 100.

[0066] Figure 3 yes Figure 2A schematic diagram of the decomposed structure. Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of area A in the middle. Figure 5 yes Figure 3 Schematic diagram of the exploded structure of the middle box door 200.

[0067] See also Figures 2 to 5 As shown, in some embodiments, the cabinet door 200 may include a door panel 201. The door panel 201 may be disposed on the front wall of the cabinet door 200. The door panel 201 may serve as the front appearance surface of the cabinet door 200.

[0068] In some embodiments, the door 200 may include an upper end cover 202. The upper end cover 202 may be disposed in the top region of the door 200. The upper end cover 202 may be disposed in the top region of the back side of the door panel 201. The top surface of the upper end cover 202 may serve as the top side appearance surface of the door 200. The upper end cover 202 may improve the structural strength of the top region of the door 200.

[0069] In some embodiments, the door 200 may include a lower end cover 203. The lower end cover 203 may be disposed in the bottom area of ​​the door 200. The lower end cover 203 may be disposed in the bottom area of ​​the back side of the door panel 201. The bottom surface of the lower end cover 203 may serve as the bottom side appearance surface of the door 200. The lower end cover 203 may improve the structural strength of the bottom area of ​​the door 200.

[0070] In some embodiments, the door 200 may include a door liner 204. The door liner 204 may be disposed on the inner side wall of the door 200. The door liner 204 may be disposed on the side wall of the door 200 facing the storage chamber 100a. A foam layer may be formed between the door liner 204 and the door panel 201 of the door 200. The foam layer may be used to insulate the interior of the door 200 and the interior of the storage chamber 100a, thereby achieving the heat preservation performance of the refrigerator.

[0071] Figure 6 yes Figure 3 Schematic diagram of the structure of the medium vacuum cabinet. Figure 7 yes Figure 6 Schematic diagram of the structure in another state.

[0072] See also Figures 1 to 7 As shown, in some embodiments, the refrigerator may include a vacuum cabinet. The vacuum cabinet may be disposed on the inner side wall of the door 200. A storage cavity 10 may be formed in the vacuum cabinet. The storage cavity 10 may be used for vacuuming, thereby forming a vacuum environment in the storage cavity 10, and then may be used for vacuum preservation of food.

[0073] See also Figure 1As shown, in some embodiments, when the door 200 is closed, the vacuum cabinet can be arranged in the storage room 100a, and the low temperature environment in the storage room 100a is utilized to store the vacuum cabinet in a low temperature environment, thereby realizing the vacuum low-temperature preservation function of the food.

[0074] See also Figure 3 As shown, in some embodiments, the refrigerator may include a vacuum assembly. The vacuum assembly may be connected to the storage cavity 10 in the vacuum cabinet. The vacuum assembly may be used to vacuum the storage cavity 10, thereby forming a vacuum environment in the storage cavity 10.

[0075] In some embodiments, the vacuum pump assembly may include a vacuum pump 301 and a vacuum pipeline 302. The vacuum pump 301 may be connected to the storage chamber 10 in the vacuum cabinet through the vacuum pipeline 302. The vacuum pump 301 may extract gas in the storage chamber 10 through the vacuum pipeline 302, thereby forming a vacuum environment in the storage chamber 10.

[0076] In some embodiments, the vacuum pump 301 may be disposed inside the upper end cover 202. The vacuum pumping line 302 may be disposed in the foaming layer between the door liner 204. Therefore, the vacuum pump 301 and the vacuum pumping line 302 may not be exposed to the outside, and do not occupy additional space in the storage chamber 100a.

[0077] See also Figure 6 to Figure 7 As shown, in some embodiments, the vacuum cabinet may include a cabinet 1. The cabinet 1 may be disposed on the inner side wall of the cabinet door 200. A storage cavity 10 may be formed inside the cabinet 1. An opening may be provided on the front wall of the cabinet 1. The opening may communicate with the inside of the storage cavity 10.

[0078] In some embodiments, the vacuum cabinet may be provided on the door liner 204. A rib 2041 may be provided on the door liner 204. The rib 2041 may be arranged to extend vertically. The rib 2041 may be arranged on the inner side wall of the door 200. Two ribs 2041 may be provided. Two ribs 2041 may be arranged on the inner side wall of the door 200 at intervals on the left and right. The vacuum cabinet may be provided between the two ribs 2041. The cabinet body 1 may be fixed in the area between the two ribs 2041.

[0079] It should be noted that, since the cabinet 1 can be arranged in the area between the two ribs 2041 on the inner side of the door 200, the size of the cabinet 1 is relatively large, and the space of the storage cavity 10 inside the cabinet 1 is large enough, which is conducive to meeting the space requirement of the storage cavity 10 in the vacuum cabinet, and can effectively solve the problem of small storage space of the existing vacuum fresh-keeping box.

[0080] In some embodiments, a clamping block 101 may be protruded from the left and right side walls of the cabinet 1. The cabinet 1 may be fixed to the ribs 2041 by the clamping block 101, thereby fixing the cabinet 1 of the vacuum cabinet in the area between the two ribs 2041.

[0081] See also Figures 4 to 7 As shown, in some embodiments, a support block 2042 is convexly provided on the side wall of the rib 2041 facing the cabinet 1. A limited slot 2043 is formed between the support block 2042 and the inner side wall of the door 200. The clamping block 101 can be inserted and fixed in the limited slot 2043, thereby fixing the cabinet 1 on the side wall of the door liner 204.

[0082] In some embodiments, at least two support blocks 2042 may be provided. At least two support blocks 2042 may be provided on the opposite side walls of the two ribs 2041. At least one support block 2042 may be provided on the left and right side walls of the cabinet 1, respectively. Therefore, the left and right side walls of the cabinet 1 may be respectively clamped in the limiting clamping groove 2043 on the inner side of the support block 2042 by at least one clamping block 101, thereby fixing the cabinet 1 in the area between the two ribs 2041.

[0083] In some embodiments, a plurality of support blocks 2042 may be arranged on the side wall of the rib 2041. The plurality of support blocks 2042 may be arranged on the side wall of the door liner 204 at intervals. The side wall of the cabinet 1 may be provided with a plurality of clamping blocks 101. The plurality of clamping blocks 101 may be arranged on the side wall of the cabinet 1 at intervals at intervals at intervals. The plurality of clamping blocks 101 may be clamped with the plurality of support blocks 2042 in a one-to-one correspondence.

[0084] See also Figures 2 to 5 As shown, in some embodiments, a support platform 2044 may be convexly provided on the inner side wall of the door 200. The support platform 2044 may be convexly provided on the door inner liner 204. The support platform 2044 may be provided in the area between two ribs 2041. The support platform 2044 may be arranged to extend in the transverse direction. The two transverse ends of the support platform 2044 may be connected to a rib 2041 respectively. The support platform 2044 may be used to support the vacuum cabinet. When the cabinet body 1 is fixed between the two ribs 2041, the bottom of the cabinet body 1 can be supported on the support platform 2044.

[0085] See also Figures 2 to 7 As shown, in some embodiments, the vacuum cabinet may include a cabinet door 2. The cabinet door 2 may be rotatably connected to the front side wall of the cabinet body 1. One side edge of the cabinet door 2 may be rotatably connected to the front side wall of the cabinet body 1.

[0086] In some embodiments, the rotation axis of the cabinet door 2 may be disposed at a side edge of the cabinet door 2. The rotation axis of the cabinet door 2 may be extended along the height direction of the cabinet body 1.

[0087] In some embodiments, the rotation axis of the cabinet door 2 can be arranged on a side of the cabinet body 1 away from the rotation axis of the box door 200, so as to facilitate further opening of the cabinet door 2 when the box door 200 is opened.

[0088] See also Figures 2 to 7 As shown, in some embodiments, a lock tongue 21 may be provided on one side of the cabinet door 2 away from its rotation axis. The cabinet door 2 may be locked and fixed with the cabinet body 1 by the lock tongue 21 to close the storage cavity 10. After the lock tongue 21 is unlocked from the cabinet body 1, the cabinet door 2 can be opened.

[0089] In some embodiments, the locking tongue 21 may be protruded on the inner side wall of the cabinet door 2. The locking tongue 21 may protrude and extend from the inner side wall of the cabinet door 2 toward the cabinet body 1.

[0090] In some embodiments, a lock hole 102 may be provided on the front side wall of the cabinet 1. When the cabinet door 2 is closed, the lock tongue 21 may be arranged opposite to the hole, and the lock tongue 21 may extend into the lock hole 102, and then engage or disengage with the interior of the cabinet 1, thereby locking and unlocking the cabinet door 2.

[0091] See also Figure 7 As shown, in some embodiments, at least two lock tongues 21 are provided on the cabinet door 2. The two lock tongues 21 can be arranged at intervals along the height direction of the cabinet door 2. The two lock tongues 21 can be arranged at intervals along the axial direction of the rotating shaft of the cabinet door 2. At least two lock holes 102 are opened on the front wall of the cabinet body 1. The two lock holes 102 can be arranged at intervals along the height direction of the cabinet body 1.

[0092] It should be noted that, in other embodiments, the number and position of the locking tongue 21 and the locking hole 102 can be adjusted as needed and are not limited here.

[0093] Figure 8 yes Figure 6 A schematic diagram of the decomposed structure. Fig. 9 yes Figure 6 Schematic diagram of the structure from another perspective. Fig.10 yes Fig. 9 A schematic diagram of the decomposed structure.

[0094] See also Figures 6 to 10 As shown, in some embodiments, the vacuum cabinet may include a side panel 3. The side panel 3 may be fixed to the side wall of the cabinet body 1. Two side panels 3 may be provided. The two side panels 3 may be fixed to the left and right outer side walls of the cabinet body 1, respectively.

[0095] See also Figure 8 and Fig.10As shown, in some embodiments, the side panel 3 can be detachably fixed to the outer side wall of the cabinet 1. A first buckle 31 can be protruded on the side wall of the side panel 3 facing the cabinet 1. A first buckle hole (not shown in the figure) can be opened on the corresponding outer side wall of the cabinet 1. The first buckle 31 can be snapped into the first buckle hole, so that the side panel 3 can be snapped and fixed to the outer side wall of the cabinet 1.

[0096] In some embodiments, a plurality of first buckles 31 may be convexly provided on the side panel 3. The plurality of first buckles 31 may be arranged at intervals on the circumferential side edge of the side panel 3. A plurality of first buckles may be provided on the corresponding outer side wall of the cabinet 1. The plurality of first buckles may be arranged one-to-one with the plurality of first buckles 31.

[0097] It should be noted that, in other embodiments, the number and positions of the first buckles 31 and the first buckle holes can be adjusted as needed and are not limited here.

[0098] See also Figures 6 to 10 As shown, in some embodiments, reinforcing ribs (not shown in the figure) may be provided on the left and right side walls of the cabinet 1. The reinforcing ribs may be used to improve the structural strength of the left and right side walls of the cabinet 1. When the storage cavity 10 is evacuated, the reinforcing ribs may help maintain the shape of the interior of the cabinet 1 and improve the structural strength of the cabinet 1.

[0099] In some embodiments, the side panels 3 may cover the reinforcing ribs on the side walls of the cabinet 1. The two side panels 3 may respectively cover the reinforcing ribs on the left and right side walls of the cabinet 1, thereby maintaining the beautiful appearance of the vacuum cabinet.

[0100] In some embodiments, a reinforcing rib may be provided on the side wall of the side panel 3 facing the cabinet body 1. The reinforcing rib may be used to enhance the structural strength of the side panel 3.

[0101] In some embodiments, the clamping block 101 on the outer wall of the cabinet 1 can be arranged outside the area corresponding to the reinforcing rib. A missing area 32 can be provided on the side panel 3. When the side panel 3 covers the corresponding outer side wall of the cabinet 1, the clamping block 101 can be arranged in the missing area 32, and the clamping block 101 can be exposed on the side panel 3.

[0102] See also Figure 2 As shown, in some embodiments, when the cabinet body 1 of the vacuum cabinet is fixed between two ribs 2041 , the ribs 2041 can cover the missing area 32 and the clamping block 101 , thereby maintaining the beautiful appearance of the vacuum cabinet.

[0103] See also Figures 6 to 10As shown, in some embodiments, a reinforcing rib (not shown in the figure) may be provided on the bottom surface of the cabinet 1. The reinforcing rib may be used to improve the structural strength of the bottom side wall of the cabinet 1. When the storage cavity 10 is evacuated, the reinforcing rib may help maintain the shape of the interior of the cabinet 1 and improve the structural strength of the cabinet 1.

[0104] See also Figure 2 As shown, in some embodiments, when the cabinet 1 is fixed between two ribs 2041, the bottom wall of the cabinet 1 can be supported on the support platform 2044, and the support platform 2044 can cover part of the reinforcing ribs on the bottom surface of the cabinet 1, thereby maintaining the appearance of the vacuum cabinet. The part of the reinforcing ribs on the bottom surface of the cabinet 1 that are not covered can be hardly seen because they are located at the bottom of the cabinet 1, and thus will not affect the appearance of the vacuum cabinet.

[0105] It should be noted that, in other embodiments, the support platform 2044 may also cover the entire bottom surface of the cabinet 1 , and further cover all the reinforcing ribs of the bottom wall of the cabinet 1 .

[0106] See also Figures 6 to 10 As shown, in some embodiments, a reinforcing rib may be provided on the outer side of the top wall of the cabinet 1. The reinforcing rib may be used to improve the structural strength of the top wall of the cabinet 1. When the storage cavity 10 is evacuated, the reinforcing rib may help maintain the shape of the interior of the cabinet 1 and improve the structural strength of the cabinet 1.

[0107] In some embodiments, the vacuum cabinet may include a top cover 4. The top cover 4 may cover the reinforcing ribs on the outer side of the top wall of the cabinet body 1, thereby maintaining the beautiful appearance of the vacuum cabinet.

[0108] In some embodiments, a reinforcing rib (not shown in the figure) may be provided on the bottom side wall of the top cover 4 facing the cabinet body 1 . The reinforcing rib may be used to enhance the structural strength of the top cover 4 .

[0109] In some embodiments, the top cover 4 can be detachably fixed to the top side wall of the cabinet 1. A second buckle 41 can be convexly provided on the bottom wall of the top cover 4 facing the cabinet 1. A second clamping hole (not marked in the figure) can be opened on the top side wall of the cabinet 1. The second clamping hole 41 can be clamped in the second clamping hole, so that the top cover 4 can be clamped and fixed above the top wall of the cabinet 1.

[0110] In some embodiments, a plurality of second buckles 41 may be convexly provided on the top cover 4. The plurality of second buckles 41 may be arranged at intervals on the circumferential side edge of the top cover 4. A plurality of second buckle holes may be provided on the top wall of the cabinet 1. The plurality of second buckle holes may be arranged in one-to-one correspondence with the plurality of second buckles 41.

[0111] It should be noted that, in other embodiments, the number and positions of the second buckles 41 and the second holes can be adjusted as needed and are not limited here.

[0112] See also Figures 6 to 10 As shown, in some embodiments, a reinforcing rib (not shown) may be provided on the back of the cabinet 1. The reinforcing rib may be used to improve the structural strength of the rear wall of the cabinet 1. When the storage cavity 10 is evacuated, the reinforcing rib may help maintain the shape of the interior of the cabinet 1 and improve the structural strength of the cabinet 1.

[0113] See also Figure 2 As shown, when the cabinet 1 is disposed on the inner side of the door 200 , the reinforcing ribs on the back side of the cabinet 1 can be hidden between the back side of the cabinet 1 and the inner side wall of the door 200 , thereby maintaining the beautiful appearance of the vacuum cabinet.

[0114] See also Figures 9 and 10 As shown, in some embodiments, a vacuum pipe 103 may be convexly provided on the back of the cabinet 1. The vacuum pipe 103 may be connected to the storage cavity 10 inside the cabinet 1. When the cabinet 1 is arranged on the inner wall of the door 200, the vacuum pipe 302 may be connected to the vacuum pipe 103. Therefore, the vacuum pump 301 may extract the air in the storage cavity 10 through the vacuum pipe 302 and the vacuum pipe 103, so that a vacuum environment may be formed in the storage cavity 10.

[0115] Fig.11 yes Figure 7 Schematic diagram of the structure of the middle cabinet 1. Fig.12 yes Fig.11 A schematic structural diagram of the middle sealing ring 11. Fig.13 yes Fig.12 Cross-sectional view along the BB axis.

[0116] See also Figures 6 to 13 As shown, in some embodiments, a sealing ring 11 may be provided on the front wall of the cabinet 1. The sealing ring 11 may be annular. The sealing ring 11 may be circumferentially arranged around the peripheral edge of the front opening of the storage cavity 10. When the cabinet door 2 is closed and locked, the inner wall of the cabinet door 2 can abut against the sealing ring 11, thereby sealing and closing the storage cavity 10. At this time, the locking tongue 21 can be engaged and locked with the cabinet 1, thereby clamping the sealing ring 11 between the front wall of the cabinet 1 and the inner wall of the cabinet door 2, and sealing the gap between the front wall of the cabinet 1 and the inner wall of the cabinet door 2 through the sealing ring 11, thereby sealing the storage cavity 10.

[0117] See also Fig.13As shown, in some embodiments, in the cross-sectional view of the sealing ring 11, the sealing ring 11 may include a connecting portion 111. The connecting portion 111 may be located at the back of the sealing ring 11. The connecting portion 111 may be used to connect to the front wall of the box body 100. The connecting portion 111 may be annular. The connecting portion 111 may be circumferentially arranged at the peripheral edge of the front opening of the storage cavity 10.

[0118] In some embodiments, a mounting groove (not shown) may be provided on the front wall of the cabinet 1. The mounting groove may be annular. The mounting groove may be circumferentially arranged around the front opening of the storage cavity 10. The connecting portion 111 may be embedded in the mounting groove, thereby fixing the sealing ring 11 on the front wall of the cabinet 1.

[0119] See also Fig.13 As shown, in some embodiments, in the cross-sectional view of the sealing ring 11, the sealing ring 11 may include an elastic sealing portion 112. The connecting portion 111 and the elastic sealing portion 112 may be integrally connected. The elastic sealing portion 112 may be located at the front portion of the sealing ring 11. The elastic sealing portion 112 may be arranged to protrude forward from the front end surface of the connecting portion 111. The elastic sealing portion 112 may protrude from the front wall of the cabinet body 1. The elastic sealing portion 112 may be used to abut against the inner side wall of the cabinet door 2. When the cabinet door 2 is closed and locked, the inner side wall of the cabinet door 2 can abut against the elastic sealing portion 112, so that the sealing ring 11 is sealed to the cabinet door 2, thereby sealing and closing the storage cavity 10.

[0120] See also Fig.13 As shown, in some embodiments, the elastic sealing portion 112 includes an elastic wall 1121 and a sealing wall 1122 that are integrally connected. The elastic wall 1121 can be arranged to protrude forward from the front end surface of the connecting portion 111. The sealing wall 1122 can be arranged to be bent and extended from the front end of the elastic wall 1121 toward the peripheral side of the front opening of the storage cavity 10. When the cabinet door 2 is locked and closed, the inner wall of the cabinet door 2 can be sealed against the sealing wall 1122, and the elastic wall 1121 can be squeezed by the sealing wall 1122, so that the sealing ring 11 is sealed with the cabinet door 2, thereby sealing and closing the storage cavity 10.

[0121] In some embodiments, when the lock tongue 21 is separated from the cabinet body 1 and the cabinet door 2 is locked or unlocked, the elastic restoring force of the elastic wall 1121, that is, the elastic force of the elastic sealing portion 112, can provide a certain door-opening force, thereby causing the cabinet door 2 to automatically open to a certain angle, thereby making it easier for the user to open the cabinet door 2.

[0122] Fig.14 yes Figure 7 Schematic diagram of the structure of the middle cabinet door 2. Fig.15 yes Fig. 9 Schematic diagram of the structure from another perspective.

[0123] See also Figures 11 to 15 As shown, in some embodiments, a rotating seat 12 may be convexly provided on the front side wall of the cabinet body 1. The rotating seat 12 may be provided on one side of the storage cavity 10. A relief groove 22 arranged opposite to the rotating seat 12 may be concavely provided on one side edge of the cabinet door 2. The rotating seat 12 may be rotatably connected in the relief groove 22. When the cabinet door 2 rotates relative to the cabinet body 1, the rotating seat 12 may rotate relatively in the relief groove 22.

[0124] In some embodiments, a plurality of rotating seats 12 may be convexly provided on the front side wall of the cabinet body 1. The plurality of rotating seats 12 may be arranged at intervals along the height direction of the cabinet body 1. The axes of the plurality of rotating seats 12 may be located on the same axis, and the axes of the plurality of rotating seats 12 may be arranged on the rotation axis of the cabinet door 2. A plurality of avoidance grooves 22 may be provided at one side edge of the cabinet door 2. The plurality of avoidance grooves 22 may be arranged at intervals along the height direction of the cabinet door 2. The plurality of avoidance grooves 22 may be connected to the plurality of rotating seats 12 in a one-to-one correspondence.

[0125] It should be noted that, in some other embodiments, the number and position of the rotating seat 12 and the avoiding groove 22 can be adjusted as needed, and are not limited here.

[0126] Fig.16 yes Fig.14 Front view of . Fig.17 yes Fig.16 A schematic diagram of the decomposed structure. Fig.18 yes Fig.17 Schematic diagram of the partial decomposition structure.

[0127] See also Figures 14 to 18 As shown, in some embodiments, the cabinet door 2 may include a door shell 23. The back side of the door shell 23 may be used to abut against the sealing ring 11 on the front wall of the cabinet body 1, thereby opening or closing the storage cavity 10.

[0128] In some embodiments, a sealing surface 231 may be formed at the peripheral edge of the back side of the door shell 23. When the cabinet door 2 is closed, the sealing surface 231 may abut against the sealing ring 11, thereby sealing and closing the storage cavity 10.

[0129] In some embodiments, a recessed groove 232 may be formed in the central area of ​​the back of the door shell 23. The sealing surface 231 may be annular. The sealing surface 231 may be circumferentially arranged around the periphery of the recessed groove 232. When the cabinet door 2 is closed, the recessed groove 232 may be connected to the storage cavity 10, thereby increasing the volume of the storage cavity 10.

[0130] See also Figures 14 to 17 As shown, in some embodiments, the cabinet door 2 may include a door cover 24. The door cover 24 may be arranged on the front side of the door shell 23. The door cover 24 may serve as the front appearance surface of the cabinet door 2.

[0131] In some embodiments, a flange plate 241 that is bent and extended backward may be provided at the peripheral edge of the cabinet door 2. The flange plate 241 may cover the corresponding side wall of the door shell 23.

[0132] In some embodiments, a plurality of flange plates 241 may be provided. The plurality of flange plates 241 may be arranged at different peripheral edges of the cabinet door 2 , so that the plurality of flange plates 241 may cover different sidewall outer sides of the door shell 23 .

[0133] See also Figures 14 to 18 As shown, in some embodiments, the cabinet door 2 may include a reinforcing iron 25. The reinforcing iron 25 may be arranged in a long strip shape. The reinforcing iron 25 may be fixed to the front wall of the door shell 23, thereby reinforcing the structural strength of the door shell 23 and the cabinet door 2. The reinforcing iron 25 may be arranged between the door shell 23 and the door cover 24. The reinforcing iron 25 may be clamped and fixed between the door shell 23 and the door cover 24.

[0134] In some embodiments, a reinforcing rib (not shown) may be convexly provided on the front wall of the door shell 23. The reinforcing rib may be laid on the front wall of the door shell 23. It should be noted that the area where the reinforcing rib is located and the area of ​​the area where the reinforcing rib is located can be adjusted as needed, and no limitation is made here.

[0135] Fig.19 yes Fig.16 Sectional view along CC direction.

[0136] See also Figures 16 to 19 As shown, in some embodiments, the reinforcing iron 25 can be detachably fixed to the reinforcing rib of the front wall of the door shell 23. A first positioning hole 233 can be provided on the reinforcing rib of the door shell 23. A first mounting hole 251 corresponding to the first positioning hole 233 can be provided on the reinforcing iron 25. The reinforcing iron 25 can be fixed to the first positioning hole 233 through the first mounting hole 251. For example, the reinforcing iron 25 can be detachably fixed to the reinforcing rib of the front wall of the door shell 23 by means of screws inserted into the first mounting hole 251 and the first positioning hole 233. By using the reinforcing iron 25 in combination with the reinforcing rib, the structural strength of the door shell 23 and the cabinet door 2 can be further improved.

[0137] In some embodiments, the reinforcing iron 25 may be provided with a plurality of first mounting holes 251. The plurality of first mounting holes 251 may be arranged in sequence and spaced apart along the extension direction of the reinforcing iron 25. The reinforcing ribs of the door shell 23 may be provided with a plurality of first positioning holes 233. The plurality of first positioning holes 233 may be arranged in one-to-one correspondence with the plurality of first mounting holes 251. Therefore, the reinforcing iron 25 may be fixed in one-to-one correspondence with the plurality of first positioning holes 233 through the plurality of first mounting holes 251, thereby improving the connection stability between the reinforcing iron 25 and the reinforcing ribs of the door shell 23, and further enhancing the structural strength of the door shell 23 and the cabinet door 2.

[0138] In some embodiments, the reinforcing iron 25 may be arranged to extend along the side edge of the door shell 23. A plurality of reinforcing irons 25 may be provided. The plurality of reinforcing irons 25 are respectively provided at the plurality of side edges of the door shell 23.

[0139] In some embodiments, four reinforcing irons 25 may be provided. The four reinforcing irons 25 are respectively provided at the upper, lower, left and right side edges of the door shell 23. It should be noted that in some other embodiments, the number and position of the reinforcing irons 25 may be adjusted as needed, and are not limited here.

[0140] See also Figures 16 to 19 As shown, in some embodiments, the cabinet door 2 may include an observation window 26. The observation window 26 may be made of a transparent or translucent material. The observation window 26 may be disposed between the door shell 23 and the door cover 24. A first observation port 234 may be provided on the door shell 23. A second observation port 242 may be provided on the door cover 24. The second observation port 242 may be arranged opposite to the first observation port 234. The observation window 26 may be disposed between the first observation port 234 and the second observation port 242. The observation window 26 may seal and isolate the first observation port 234 from the second observation port 242. The user may observe the interior of the storage cavity 10 through the observation window 26, thereby improving the convenience of use for the user.

[0141] In some embodiments, the observation window 26 may include an observation portion 261. The observation portion 261 may be arranged opposite to the first observation port 234 and the second observation port 242. The user may observe the interior of the storage cavity 10 through the observation portion 261.

[0142] In some embodiments, the observation portion 261 may be embedded in the second observation port 242 and may be protruded from the front wall of the door cover 24. The observation portion 261 may protrude from the front wall of the door cover 24 in an arc shape.

[0143] See also Figures 16 to 19As shown, in some embodiments, the observation window 26 may include a clamping plate portion 262. The clamping plate portion 262 may be circumferentially arranged around the observation portion 261. The clamping plate portion 262 may be clamped and fixed between the front wall of the door shell 23 and the rear wall of the door cover 24. The observation portion 261 may be fixed between the first observation port 234 and the second observation port 242 through the clamping plate portion 262.

[0144] In some embodiments, the clamping plate portion 262 can be detachably fixed to the reinforcement rib of the door shell 23. The reinforcement rib of the door shell 23 can be provided with a second positioning hole 235. The clamping plate portion 262 can be provided with a second mounting hole 263. The second mounting hole 263 can be arranged corresponding to the second positioning hole 235. The clamping plate portion 262 can be fixed to the second positioning hole 235 through the second mounting hole 263. For example, the clamping plate portion 262 can be detachably fixed to the reinforcement rib of the front wall of the door shell 23 by means of screws inserted into the second mounting hole 263 and the second positioning hole 235. By using the clamping plate portion 262 in conjunction with the reinforcement rib, the structural strength of the observation window 26 can be improved.

[0145] In some embodiments, the clamping plate portion 262 may be provided with a plurality of second mounting holes 263. The plurality of second mounting holes 263 may be arranged circumferentially at intervals on the clamping plate portion 262. The reinforcing ribs of the door shell 23 may be provided with a plurality of second positioning holes 235. The plurality of second positioning holes 235 may be arranged one-to-one with the plurality of second mounting holes 263. Therefore, the observation window 26 may be fixed by the plurality of second mounting holes 263 and the plurality of second positioning holes 235 in one-to-one correspondence, thereby improving the connection stability between the observation window 26 and the reinforcing ribs of the door shell 23. Please refer to Figures 16 to 19 As shown, in some embodiments, a stop ring 236 may be convexly provided on the front wall of the door shell 23. The stop ring 236 may be arranged around the periphery of the first observation port 234 at intervals. The outer contour of the stop ring 236 may be consistent with the outer contour of the observation window 26. The observation window 26 may be installed in the stop ring 236. The stop ring 236 may be arranged circumferentially around the outer periphery of the clamping plate portion 262.

[0146] In some embodiments, the cabinet door 2 may include a seal 27. The seal 27 may be annular. The seal 27 may be circumferentially arranged around the first observation port 234. The seal 27 may be clamped between the front wall of the door shell 23 and the rear wall of the clamping plate portion 262, so that the observation window 26 can seal and close the first observation port 234, thereby sealing and isolating the first observation port 234 from the second observation port 242. The seal 27 can seal and isolate the storage cavity 10 inside the cabinet body 1 from the outside of the cabinet door 2, thereby improving the sealing performance of the vacuum cabinet.

[0147] See also Figures 17 to 19As shown, in some embodiments, a sealing groove 237 is recessed on the front wall of the door shell 23. The sealing groove 237 may be annular. The sealing groove 237 may be circumferentially arranged around the first observation port 234. The contour shape of the sealing member 27 may be consistent with the contour shape of the sealing groove 237. The sealing member 27 may be installed at the sealing groove 237. The sealing member 27 may be clamped between the groove wall of the sealing groove 237 and the clamping plate portion 262, thereby sealing the gap between the clamping plate portion 262 and the front wall of the door shell 23, so that the observation window 26 can seal and close the first observation port 234.

[0148] In some embodiments, the seal 27 may include a positioning portion 271 and a clamping portion 272. The clamping portion 272 may be clamped between the front wall of the door shell 23 and the back of the clamping plate portion 262. The positioning portion 271 may be arranged to protrude from the back of the clamping portion 272 toward the door shell 23. The positioning portion 271 may extend into the sealing groove 237. The clamping portion 272 may be encapsulated at the notch of the sealing groove 237. The sealing groove 237 may position the positioning portion 271, and then the seal 27, to facilitate the case of the seal 27, and prevent the seal 27 from displacement and deviation.

[0149] See also Figures 16 to 19 As shown, in some embodiments, the cabinet door 2 may include a plurality of observation windows 26. The plurality of observation windows 26 may be arranged between the door shell 23 and the door cover 24 with intervals up and down or left and right. The door shell 23 may be provided with a plurality of first observation ports 234. The plurality of first observation ports 234 may be arranged with intervals up and down or left and right. The door cover 24 may be provided with a plurality of second observation ports 242. The plurality of second observation ports 242 may be arranged one-to-one with the plurality of first observation ports 234. The plurality of observation windows 26 may be arranged one-to-one between the plurality of first observation ports 234 and the plurality of second observation ports 242. A plurality of seals 27 may be provided. The plurality of seals 27 may be sandwiched one-to-one between the front wall of the door shell 23 and the rear wall of the clamping plate portion 262 corresponding to the observation window 26.

[0150] It should be noted that the number of the observation windows 26 can be adjusted as needed, and is not limited here. The positions and areas of the first observation port 234 and the second observation port 242 can be adjusted as needed, and are not limited here.

[0151] Fig. 20 yes Fig.16 Cross-sectional view along DD direction.

[0152] See also Figures 14 to 20As shown, in some embodiments, the lock tongue 21 can be inserted into the door shell 23. One end of the lock tongue 21 can be inserted between the door shell 23 and the door cover 24. One end of the lock tongue 21 can be fixed between the reinforcing rib of the door shell 23 and the reinforcing iron 25. The other end of the lock tongue 21 can pass through the door shell 23 and protrude from the back of the door shell 23. The end of the lock tongue 21 is limited by the reinforcing rib of the door shell 23 and the reinforcing iron 25, thereby improving the firmness of the installation of the lock tongue 21. When the cabinet door 2 is closed, the reinforcing iron 25 can be against the lock tongue 21 to provide support for the lock tongue 21.

[0153] Fig.21 yes Figure 8 Schematic diagram of the partial decomposition structure in. Fig. 22 yes Fig.21 Schematic diagram of some structures in . Fig.23 yes Fig. 22 A schematic diagram of the decomposed structure. Fig.24 yes Fig. 22 Side view of . Fig.25 yes Fig.24 Cross-sectional view along the EE axis.

[0154] See also Figures 8 to 25 As shown, in some embodiments, a pressure relief hole 104 may be provided on the side wall of the cabinet 1. The pressure relief hole 104 may be connected to the storage cavity 10. External gas may enter the storage cavity 10 through the pressure relief hole 104, so that the storage cavity 10 and the outside of the cabinet 1 can be balanced in air pressure, so that the cabinet door 2 can be easily opened.

[0155] In some embodiments, the vacuum cabinet may include a pressure relief valve 5. The pressure relief valve 5 may be made of a flexible material such as rubber. The pressure relief valve 5 may be arranged on the outside of the cabinet 1. The pressure relief valve 5 may be used to open or close the pressure relief hole 104. When the cabinet door 2 is closed and the pressure relief valve 5 closes the pressure relief hole 104, the storage cavity 10 may be isolated from the outside of the cabinet 1, so that the air in the storage cavity 10 may be extracted by the vacuum assembly to form a vacuum environment. When the cabinet door 2 needs to be opened, the pressure relief hole 104 may be opened through the pressure relief valve 5, so that external gas may enter the storage cavity 10 through the pressure relief hole 104, thereby allowing the cabinet door 2 to be easily opened.

[0156] In some embodiments, the pressure relief valve 5 may be rotatably disposed outside the side wall of the cabinet 1. When the pressure relief valve 5 rotates toward the side wall of the cabinet 1, the pressure relief valve 5 may close the pressure relief hole 104. When the pressure relief valve 5 rotates toward the side wall away from the cabinet 1, the pressure relief valve 5 may open the pressure relief hole 104.

[0157] See also Figures 6 to 18As shown, in some embodiments, the pressure relief hole 104 can be provided on the side wall of the cabinet body 1 away from the rotation axis of the cabinet door 2. The pressure relief valve 5 can be provided on the outside of the side wall of the cabinet body 1 away from the rotation axis of the cabinet door 2.

[0158] In some embodiments, the pressure relief hole 104 may be disposed on a side wall of the cabinet 1 close to the lock tongue 21. The pressure relief valve 5 may be disposed on the outer side of the side wall of the cabinet 1 close to the lock tongue 21.

[0159] See also Figure 8 and Fig.18 As shown, in some embodiments, a mounting cavity 30 may be provided between the side panel 3 and the side wall of the cabinet 1. The mounting cavity 30 may be formed between the side wall of the cabinet 1 away from the rotation axis of the cabinet door 2 and the corresponding side panel 3. The pressure relief valve 5 may be provided in the mounting cavity 30. When the pressure relief valve 5 opens the pressure relief hole 104, the pressure relief hole 104 may communicate the mounting cavity 30 with the storage cavity 10 inside the cabinet 1.

[0160] See also Figures 8 to 23 As shown, in some embodiments, the vacuum cabinet may include a connecting rod 6. The connecting rod 6 may be rotatably disposed on the side wall of the cabinet body 1. The connecting rod 6 may be rotatably disposed in the mounting cavity 30. The connecting rod 6 may be extended and arranged along the direction of its rotation axis. The connecting rod 6 may be extended and arranged along the height direction of the cabinet body 1. The connecting rod 6 may be connected to the pressure relief valve 5. The connecting rod 6 may be disposed on a side of the pressure relief valve 5 close to the cabinet door 2. The connecting rod 6 may be disposed in the area between the pressure relief hole 104 and the cabinet door 2.

[0161] In some embodiments, the rotation axis of the connecting rod 6 and the rotation axis of the cabinet door 2 may be arranged in parallel and spaced apart.

[0162] When the connecting rod 6 rotates in one direction, the connecting rod 6 can drive the pressure relief valve 5 to rotate in a direction away from the side wall of the cabinet 1, so that the pressure relief valve 5 can open the pressure relief hole 104. When the connecting rod 6 rotates in the opposite direction, the connecting rod 6 can drive the pressure relief valve 5 to rotate in a direction close to the side wall of the cabinet 1, so that the pressure relief valve 5 can press and close the pressure relief hole 104.

[0163] See also Figures 18 to 23 As shown, in some embodiments, the pressure relief hole 104 can be arranged at intervals on the side of the connecting rod 6 away from the cabinet door 2. The pressure relief valve 5 can be arranged at intervals on the side of the connecting rod 6 away from the cabinet door 2. A connecting arm 61 can be protrudingly provided on the side of the connecting rod 6 away from the cabinet door 2. The connecting arm 61 can be extended in the direction of the pressure relief hole 104. The pressure relief valve 5 can be arranged on the connecting arm 61. The pressure relief valve 5 can be protruding on the side wall of the connecting arm 61 facing the pressure relief hole 104. Therefore, the connecting rod 6 can drive the pressure relief valve 5 to rotate synchronously in the forward or reverse direction through the connecting arm 61, so that the pressure relief valve 5 rotates toward or away from the side wall of the cabinet 1, and then the pressure relief valve 5 can be close to or away from the pressure relief hole 104.

[0164] See also Figures 8 to 23 As shown, in some embodiments, the vacuum cabinet may include a button assembly 7. The button assembly 7 may be disposed on a side of the connecting rod 6 away from the pressure relief valve 5. When the button assembly 7 is pressed, the button assembly 7 may rotate toward a direction close to the side wall of the cabinet 1, and the pressure relief valve 5 may be driven to rotate toward a direction away from the side wall of the cabinet 1 through the connecting rod 6, so that the pressure relief valve 5 is separated from the pressure relief hole 104, and the pressure relief hole 104 may be opened.

[0165] See also Figures 6 to 8 As shown, in some embodiments, a button hole 33 may be provided on the side panel 3. The button hole 33 may communicate with the mounting cavity 30 between the side panel 3 and the side wall of the cabinet 1. The button assembly 7 may be movably arranged in the button hole 33. The inner end of the button assembly 7 may be arranged in the mounting cavity 30 and may be connected to the connecting rod 6. The outer end of the button assembly 7 may be exposed to the side panel 3 through the button hole 33.

[0166] See also Figures 8 to 23 As shown, in some embodiments, the vacuum cabinet may include an elastic member 8. The elastic member 8 may be connected to the connecting rod 6. The elastic member 8 may be disposed in the mounting cavity 30. The elastic member 8 may be used to drive the connecting rod 6 to rotate, and drive the pressure relief valve 5 to rotate in a direction close to the side wall of the cabinet 1, so that the pressure relief valve 5 can press and close the pressure relief hole 104. Therefore, when the user releases the button assembly 7, the connecting rod 6 and the button assembly 7 can automatically rotate under the elastic force of the elastic member 8, so that the pressure relief valve 5 can automatically press and close the pressure relief hole 104. When the user presses the button assembly 7, the connecting rod 6 can overcome the elastic force of the elastic member 8 and rotate in the opposite direction, driving the pressure relief valve 5 to rotate in a direction away from the side wall of the cabinet 1, thereby enabling the pressure relief valve 5 to open the pressure relief hole 104.

[0167] In some embodiments, a button arm 62 may be protruded from the side of the connecting rod 6 away from the pressure relief valve 5. The button arm 62 may be extended toward the direction close to the cabinet door 2. The button assembly 7 may be arranged on the button arm 62. The button assembly 7 may be arranged on the side of the button arm 62 away from the cabinet 1. Therefore, when the button assembly 7 is pressed by the user, the button assembly 7 can overcome the elastic force of the elastic member 8 and rotate toward the side close to the cabinet 1, and drive the pressure relief valve 5 to rotate toward the side away from the cabinet 1 through the button arm 62 and the connecting rod 6, so that the pressure relief valve 5 can open the pressure relief hole 104.

[0168] Fig.26 yes Fig. 22 Schematic diagram of the enlarged structure of the F region in the middle. Fig. 27 yes Fig.26 Schematic diagram of the structure in which the middle locking portion 63 is engaged with the locking tongue 21. Fig.28 yes Fig. 27 A schematic diagram of the decomposed structure.

[0169] See also Figures 21 to 28 As shown, in some embodiments, a locking portion 63 may be convexly provided on one side of the connecting rod 6 facing the cabinet door 2. The locking portion 63 may be arranged to extend from the connecting rod 6 in the direction toward the cabinet door 2. The locking portion 63 may be arranged opposite to the lock tongue 21 on the cabinet door 2. The locking portion 63 and the pressure relief valve 5 may be located on opposite sides of the connecting rod 6. The locking portion 63 may be used to be engaged with or separated from the lock tongue 21.

[0170] When the connecting rod 6 drives the locking portion 63 to rotate in a direction away from the cabinet 1, the connecting rod 6 can drive the pressure relief valve 5 to rotate in a direction close to the cabinet 1, so that the pressure relief valve 5 can press and close the pressure relief hole 104. At this time, the locking portion 63 can be engaged with the lock tongue 21, so that the locking portion 63 can be engaged with the side of the lock tongue 21 close to the cabinet 1, thereby locking and fixing the cabinet door 2 on the cabinet 1.

[0171] When the connecting rod 6 drives the locking part 63 to rotate in the opposite direction toward the cabinet 1, the connecting rod 6 can drive the pressure relief valve 5 to rotate in the direction away from the cabinet 1, so that the pressure relief valve 5 can move away and open the pressure relief hole 104, so that the gas enters the storage cavity 10, thereby balancing the air pressure inside and outside the storage cavity 10. At this time, the locking part 63 can be separated from the lock tongue 21, so that the cabinet door 2 is unlocked and the cabinet door 2 can be easily opened.

[0172] In some embodiments, the elastic member 8 may be convexly disposed on the side wall of the locking portion 63 close to the cabinet 1. One end of the elastic member 8 may be connected to the locking portion 63. The other end of the elastic member 8 may abut against the side wall of the cabinet 1. The elastic member 8 may drive the connecting rod 6 to rotate, and drive the locking portion 63 to rotate toward the side away from the cabinet 1, so that the locking portion 63 is engaged with the lock tongue 21, so that the locking portion 63 can be engaged with the side of the lock tongue 21 close to the cabinet 1, thereby locking the cabinet door 2. At the same time, the elastic member 8 may drive the connecting rod 6 to drive the pressure relief valve 5 to rotate toward the side close to the cabinet 1, so that the pressure relief valve 5 presses and closes the pressure relief hole 104.

[0173] In some embodiments, when the button assembly 7 is pressed by the user, the button assembly 7 can overcome the elastic force of the elastic member 8 and rotate toward the side close to the cabinet body 1, and can drive the connecting rod 6 to overcome the elastic force of the elastic member 8 and rotate in the opposite direction, and can drive the connecting rod 6 to drive the locking part 63 to rotate toward the side close to the cabinet body 1, so that the locking part 63 can be separated from the lock tongue 21, thereby unlocking the cabinet door 2.

[0174] It should be noted that, in some other embodiments, the elastic member 8 may not be disposed on the locking portion 63. The elastic member 8 may also be disposed at other positions of the connecting rod 6.

[0175] See also Figures 7 to 28As shown, in some embodiments, a lock hole 211 is provided on the lock tongue 21. The elastic member 8 can drive the connecting rod 6 to drive the locking portion 63 to rotate toward the side away from the cabinet body 1, so that the locking portion 63 is engaged with the lock hole 211 of the lock tongue 21, thereby locking the cabinet door 2. When the button assembly 7 is pressed by the user, the button assembly 7 can drive the connecting rod 6 to rotate in the opposite direction to overcome the elastic force of the elastic member 8, and can drive the connecting rod 6 to drive the locking portion 63 to rotate toward the side close to the cabinet body 1, so that the locking portion 63 can be separated from the lock hole 211 of the lock tongue 21, thereby unlocking the cabinet door 2.

[0176] It should be noted that, in some other embodiments, the lock opening 211 may also be provided on the locking portion 63. At this time, the elastic member 8 may drive the connecting rod 6 to drive the locking portion 63 to rotate toward the side away from the cabinet 1, so that the lock opening 211 of the locking portion 63 is engaged with the lock opening 211 of the lock tongue 21, thereby locking the cabinet door 2. When the button assembly 7 is pressed by the user, the button assembly 7 may drive the connecting rod 6 to rotate in the opposite direction to overcome the elastic force of the elastic member 8, and may drive the connecting rod 6 to drive the locking portion 63 to rotate toward the side close to the cabinet 1, so that the lock opening 211 of the locking portion 63 can be separated from the lock tongue 21, thereby unlocking the cabinet door 2.

[0177] See also Figures 11 to 28 As shown, in some embodiments, when the locking portion 63 is engaged with the lock opening 211 of the lock tongue 21, the cabinet door 2 is locked, and the inner wall of the cabinet door 2 can abut against the sealing ring 11, thereby sealing and closing the storage cavity 10. At this time, the elastic sealing portion 112 of the sealing ring 11 is elastically compressed, and the sealing wall 1122 can squeeze the elastic wall 1121. When the locking portion 63 is separated from the lock opening 211 of the lock tongue 21, the cabinet door 2 is unlocked, and the elastic force of the elastic sealing portion 112 of the sealing ring 11 can provide a certain door opening force, driving the cabinet door 2 to open automatically.

[0178] See also Figures 21 to 28 As shown, in some embodiments, a locking block 631 is protruding on the side wall of the locking portion 63 away from the cabinet body 1. When the cabinet door 2 is closed, the locking portion 63 can rotate toward the side away from the cabinet body 1 under the action of the elastic member 8, so that the locking block 631 of the locking portion 63 can be engaged with the locking opening 211 of the locking tongue 21, thereby fixing the locking tongue 21 on the locking portion 63 and locking the cabinet door 2.

[0179] In some embodiments, the lock block 631 may be provided with an inclined extrusion surface 632. In the direction from the cabinet 1 to the cabinet door 2, the extrusion surface 632 may be arranged to extend obliquely toward the direction close to the cabinet 1. When the cabinet door 2 is closed, the lock tongue 21 can first abut against the extrusion surface 632 of the lock block 631, so that the locking portion 63 can first rotate toward the direction close to the side wall of the cabinet 1. When the lock block 631 is located in the lock port 211, under the action of the elastic member 8, the elastic member 8 can drive the locking portion 63 to rotate toward the direction of the side wall of the cabinet 1, and the lock block 631 can be clamped and fixed in the lock port 211.

[0180] In some embodiments, the locking portion 63 is a plate-shaped structure. The plate-shaped locking portion 63 can be arranged facing the side wall of the cabinet 1. The elastic member 8 can be convexly arranged on a side of the locking portion 63 close to the cabinet 1, so that the locking portion 63 and the side wall of the cabinet 1 are arranged at a distance.

[0181] See also Figure 22 to Figure 28 As shown, in some embodiments, a connecting rib 64 may be convexly provided on one side of the connecting rod 6 close to the cabinet door 2. The connecting rib 64 may be arranged to extend in a long strip shape. The extending direction of the connecting rib 64 may be consistent with the extending direction of the connecting rod 6. The locking portion 63 may have the connecting rib 64 extending in the direction of the cabinet door 2. The connecting rib 64 may increase the connection strength between the connecting rod 6 and the locking portion 63. The button arm 62 may be extended in the direction of the cabinet door 2 by the connecting rib 64. The connecting rib 64 may increase the connection strength between the connecting rod 6 and the button arm 62.

[0182] In some embodiments, at least two locking parts 63 may be provided. The two locking parts 63 are arranged at intervals along the extension direction of the connecting rod 6. The key assembly 7 may be provided in the area between the two locking parts 63. The two locking parts 63 may be provided at the upper and lower ends of the connecting rod 6. When the elastic member 8 drives the connecting rod 6 to rotate, the two locking parts 63 can be engaged with the two locking tongues 21 in a one-to-one correspondence. When the key assembly 7 is pressed, the connecting rod 6 can overcome the elastic force of the elastic member 8 and rotate in the opposite direction, and the two locking parts 63 can be separated from the two locking tongues 21 in a one-to-one correspondence.

[0183] It should be noted that the number of the locking portion 63 and the locking tongue 21 can be adjusted as needed, and is not limited here. In addition, when a plurality of locking portions 63 and a plurality of locking tongues 21 are engaged, the locking force of the cabinet door 2 can be increased, and the sealing performance of the sealing ring 11 can be improved.

[0184] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A refrigerator, characterized in that: include: A box body, which forms an outer shell of the refrigerator, and a storage chamber is arranged in the box body; A box door, provided on the box body, and used to open or close the storage chamber; A vacuum cabinet is arranged on the inner side of the box door, and a storage cavity is arranged in the vacuum cabinet; when the box door is closed, the vacuum cabinet can be arranged in the storage chamber; A vacuum pumping assembly is disposed in the box door, the vacuum pumping assembly is connected to the storage cavity, and the vacuum pumping assembly is used to vacuum the storage cavity; Wherein, the vacuum cabinet comprises: A cabinet body is arranged on the inner side of the cabinet door, and the storage cavity is formed inside the cabinet body; A cabinet door is rotatably connected to the cabinet body, and is used to open or close the storage cavity; the cabinet door includes a door shell, a door cover and a reinforcing iron; the back side of the door shell is used to open or close the storage cavity; the door cover is arranged on the front side of the door shell; the reinforcing iron is arranged on the front wall of the door shell and between the door shell and the door cover.

2. The refrigerator according to claim 1, characterized in that: A reinforcing rib is protrudingly arranged on the front wall of the door shell, and the reinforcing iron is fixed on the reinforcing rib of the door shell.

3. The refrigerator according to claim 2, characterized in that: A first positioning hole is provided on the reinforcing rib of the door shell, a first mounting hole corresponding to the first positioning hole is opened on the reinforcing iron, and the reinforcing iron is fixed to the first positioning hole through the first mounting hole.

4. The refrigerator according to claim 3, characterized in that: The reinforcing iron is provided with a plurality of the first mounting holes; A plurality of the first positioning holes are formed on the reinforcing rib of the door shell, and the plurality of the first positioning holes are arranged in one-to-one correspondence with the plurality of the first mounting holes.

5. The refrigerator according to claim 1, characterized in that: The reinforcing iron is arranged to extend in a long strip shape, and the reinforcing iron is arranged to extend along the direction of the side edge of the door shell.

6. The refrigerator according to claim 5, characterized in that: The reinforcing irons are provided in plurality, and the plurality of reinforcing irons are respectively arranged at a plurality of side edges of the door shell.

7. The refrigerator according to claim 1, characterized in that: The door shell is provided with a first observation port, and the door cover is provided with a second observation port arranged opposite to the first observation port; The cabinet door includes an observation window, which is made of a transparent or translucent material; the observation window is sandwiched between the door shell and the door cover, and is arranged between the first observation port and the second observation port, and the first observation port and the second observation port are sealed and isolated.

8. The refrigerator according to claim 7, characterized in that: The observation window includes an observation portion and a clamping plate portion; the observation portion is arranged opposite to the first observation port and the second observation port; The clamping plate portion is circumferentially arranged around the observation portion, and the clamping plate portion is clamped and fixed between the front wall of the door shell and the rear wall of the door cover.

9. The refrigerator according to claim 8, characterized in that: The observation portion is protrudingly arranged on the front side of the clamping plate portion, is embedded in the second observation port, and is protrudingly arranged on the front wall of the door cover.

10. The refrigerator according to claim 8, characterized in that A second positioning hole is provided on the reinforcing rib of the door shell, a second mounting hole corresponding to the second positioning hole is opened on the clamping plate portion, and the clamping plate portion is fixed to the second positioning hole through the second mounting hole.

11. The refrigerator according to claim 2, characterized in that: The cabinet door comprises a lock tongue, one end of which is fixed between the reinforcing rib of the door shell and the reinforcing iron, and the other end of which passes through the door shell and protrudes out of the back side of the door shell.

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