Refrigerator and vacuum cabinet

Abstract

The utility model relates to a refrigerator and a vacuum cabinet, the vacuum cabinet comprises a cabinet body, the side wall of the cabinet body is provided with a pressure relief hole; the cabinet door is rotationally connected to the cabinet body; the connecting rod is rotatably arranged on the side wall of the cabinet body; the pressure release valve is arranged on one side of the connecting rod; the key assembly is arranged on the side, away from the pressure release valve, of the connecting rod; and the elastic piece is connected with the connecting rod and used for driving the connecting rod to rotate, so that the pressure relief valve compresses and closes the pressure relief hole, and then the storage cavity is sealed and can be vacuumized smoothly. When the key assembly is pressed, the connecting rod can overcome the elastic force of the elastic piece to rotate reversely, then the pressure relief valve can be opened, external air can enter the cabinet body through the pressure relief hole, air pressure inside and outside the storage cavity is balanced, and the cabinet door can be opened easily. The scheme is simple to operate, and is beneficial to improving the use convenience of the user.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, and particularly relates to a refrigerator and a vacuum cabinet. Background Art

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

[0003] In related refrigerators, a refrigerator generally includes a box body and a box door, and a storage compartment is formed inside the box body. The box door is arranged on the front side of the box body, and the box door is used to open and close the storage compartment. A vacuum fresh-keeping module is usually provided in the refrigerator for vacuum fresh-keeping of food materials.

[0004] In the existing refrigerator industry, the vacuum fresh-keeping module is usually a vacuum drawer and a vacuum fresh-keeping box. The vacuum drawer is usually arranged inside the box body, which needs to occupy the space of the storage compartment and has a high cost. The vacuum fresh-keeping box is usually arranged on the box door, but the storage space of the vacuum fresh-keeping box is small and the operation convenience is poor. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a vacuum cabinet to optimize the structure of the vacuum cabinet and improve the storage space of the vacuum cabinet.

[0006] The purpose of the utility model can also be to provide a vacuum cabinet to optimize the structure of the vacuum cabinet and improve the operation convenience of the vacuum cabinet.

[0007] The purpose of the utility model can also be to provide a refrigerator to optimize the vacuum fresh-keeping structure in the refrigerator and improve the storage space and operation convenience of the vacuum fresh-keeping.

[0008] To solve the above technical problems, the utility model adopts the following technical solutions:

[0009] According to one aspect of the utility model, the utility model provides a vacuum cabinet, which includes: a cabinet body, a storage cavity is formed inside the cabinet body, and the storage cavity is used for vacuum pumping; a pressure relief hole communicating with the storage cavity is opened on the side wall of the cabinet body; a cabinet door is rotatably connected to the cabinet body, and the cabinet door is used to open or close the storage cavity; a connecting rod is rotatably arranged on the side wall of the cabinet body; a pressure relief valve is arranged on one side of the connecting rod; the pressure relief valve is used to open or close the pressure relief hole; a button assembly is arranged on the side of the connecting rod away from the pressure relief valve; an elastic member is connected to the connecting rod, and the elastic member is used to drive the connecting rod to rotate so that the pressure relief valve tightly closes the pressure relief hole; when the button assembly is pressed, the connecting rod can rotate reversely against the elastic force of the elastic member so that the pressure relief valve can open the pressure relief hole.

[0010] In some embodiments of the present application, the button assembly includes a fixed button and a pressing button; the fixed button is fixed on a side of the connecting rod away from the pressure relief valve, and the fixed button can rotate synchronously with the connecting rod; the pressing button is rotatably connected to the fixed button and is arranged on a side of the fixed button away from the cabinet body; when the pressing button is pressed, the pressing button can move towards the direction close to the cabinet body, so as to drive the fixed button to drive the connecting rod to rotate synchronously against the elastic force of the elastic member, and make the pressing button rotate relative to the fixed button.

[0011] In some embodiments of the present application, a rotating shaft portion protrudes from each of the opposite sides of the fixed button, and the two rotating shaft portions are coaxially arranged; an extension arm protrudes from each of the opposite sides of the pressing button, the extension arms extend towards the direction of the cabinet body, and the two extension arms are respectively rotatably connected to a rotating shaft portion.

[0012] In some embodiments of the present application, a rotating groove is formed at an end of the extension arm facing the cabinet body; the rotating shaft portion can be snapped into and rotatably connected in the rotating groove.

[0013] In some embodiments of the present application, the connecting rod extends along its rotation axis direction, and the rotation axis of the connecting rod is arranged parallel and spaced from the rotation axis of the cabinet door; the pressure relief holes are spacedly arranged on a side of the connecting rod away from the cabinet door; the pressure relief valve is arranged on a side of the connecting rod away from the cabinet door, and the button assembly is arranged on a side of the connecting rod close to the cabinet door.

[0014] In some embodiments of the present application, a connecting arm protrudes from a side of the connecting rod away from the cabinet door, and the connecting arm extends towards the direction of the pressure relief hole; the pressure relief valve is arranged on the connecting arm and protrudes from a side wall of the connecting arm facing the pressure relief hole.

[0015] In some embodiments of the present application, a button arm protrudes from a side of the connecting rod away from the pressure relief valve, and the button arm extends towards the direction of the cabinet door; the button assembly is detachably arranged on the button arm.

[0016] In some embodiments of the present application, a locking portion is arranged on a side of the connecting rod facing the cabinet door; a locking tongue is arranged on a side of the cabinet door away from its rotation axis; the elastic member is arranged on a side wall of the locking portion close to the cabinet body; when the cabinet door is closed, the locking portion can be engaged with the locking tongue to lock the cabinet door; when the button assembly is pressed, the connecting rod can rotate reversely against the elastic force of the elastic member, so that the locking portion can be separated from the locking tongue to unlock the cabinet door.

[0017] In some embodiments of the present application, a first sealing surface is formed on the end surface of the pressure relief valve facing the pressure relief hole, and a second sealing surface is formed at intervals and arranged around the periphery of the first sealing surface; when the pressure relief valve presses to close the pressure relief hole, the first sealing surface can seal the pressure relief hole, and the second sealing surface can be hermetically attached to the outer side wall of the cabinet body on the periphery of the pressure relief hole.

[0018] In some embodiments of the present application, a sealing ring groove is formed on the end surface of the pressure relief valve facing the pressure relief hole, and the sealing ring groove has an annular structure; the first sealing surface is formed on the inner side of the sealing ring groove, and the second sealing surface is formed on the outer peripheral side of the sealing ring groove.

[0019] According to one aspect of the present invention, the present invention provides a refrigerator, which includes: a box body, which forms the outer shell of the refrigerator, and a storage room is arranged inside 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 room; a vacuum cabinet, which is arranged on the inner side of the box door, and a storage cavity is formed inside the vacuum cabinet; the vacuum cabinet adopts the above-mentioned vacuum cabinet; when the box door is closed, the vacuum cabinet can be arranged inside the storage room; a vacuum pumping assembly, which is arranged inside the box door, and the vacuum pumping assembly is connected to the storage cavity, and the vacuum pumping assembly is used to pump the storage cavity into a vacuum.

[0020] The embodiments of the present invention have the following advantages and positive effects:

[0021] In the vacuum cabinet of the embodiment of the present invention, the vacuum cabinet includes a cabinet body and a cabinet door, and a storage cavity is formed inside the cabinet body, which can form a relatively large storage space, thereby improving the storage space of the vacuum cabinet. The connecting rod is rotatably connected to the side wall of the cabinet body, and the pressure relief valve and the button assembly are respectively arranged on both sides of the connecting rod. The elastic member is used to drive the connecting rod to rotate, so that the pressure relief valve can press to close the pressure relief hole, thereby sealing the storage cavity, and the storage cavity can be smoothly pumped into a vacuum. The user can press the button assembly to drive the connecting rod to rotate reversely against the elastic force of the elastic member, so that the pressure relief valve can be opened, and external gas can enter the inside of the cabinet body through the pressure relief hole, so that the air pressure inside and outside the storage cavity is balanced, and the cabinet door can be easily opened. This solution is simple to operate and is beneficial to improving the convenience of user use.

[0022] In the refrigerator of the embodiment of the present invention, the vacuum cabinet is arranged on the inner side of the refrigerator box door, and the vacuum pumping assembly inside the box door can be used to pump the storage cavity inside the vacuum cabinet into a vacuum, thereby realizing the vacuum fresh-keeping function, without occupying the space inside the storage room of the box body, which is beneficial to improving the storage space and operation convenience of vacuum fresh-keeping.

[0023] The effects of the present invention are not limited to the effects mentioned above. Those skilled in the art can clearly understand other effects not mentioned from the description of the claims. Description of the Drawings

[0024] Figure 1 is a schematic structural view of a refrigerator according to an embodiment of the present utility model.

[0025] Figure 2 is Figure 1 a schematic structural view of the middle cabinet door and the vacuum cabinet.

[0026] Figure 3 is Figure 2 a schematic exploded view of

[0027] Figure 4 is Figure 3 a schematic enlarged view of area A in

[0028] Figure 5 is Figure 3 a schematic exploded view of the middle cabinet door.

[0029] Figure 6 is Figure 3 a schematic structural view of the vacuum cabinet in

[0030] Figure 7 is Figure 6 a schematic structural view in another state.

[0031] Figure 8 is Figure 6 a schematic exploded view of

[0032] Fig. 9 is Figure 6 a schematic structural view from another perspective.

[0033] Fig.10 is Fig. 9 a schematic exploded view of

[0034] Fig.11 is Figure 7 a schematic structural view of the cabinet body in

[0035] Fig.12 is Fig.11 a schematic structural view of the sealing ring in

[0036] Fig.13 is Fig.12 a sectional view taken along the line B - B in

[0037] Fig.14 is Figure 7 a schematic structural view of the cabinet door in

[0038] Fig.15 is Fig. 9 a schematic structural view from another perspective.

[0039] Fig.16 is Fig.15 a sectional view of

[0040] Fig.17 is Fig.16 an enlarged structural schematic diagram of area C in

[0041] Fig.18 is Fig.16 an enlarged structural schematic diagram of area D in

[0042] Fig.19 is Figure 7 the front view of

[0043] Fig. 20 is Fig.19 a sectional view in the E-E direction of

[0044] Fig.21 is Fig.11 an exploded structural schematic diagram of

[0045] Fig. 22 is Fig.21 an enlarged structural schematic diagram of area F in

[0046] Fig.23 is Fig.21 a structural schematic diagram of the middle plate

[0047] Fig.24 is Fig.23 a structural schematic diagram from another perspective of

[0048] Fig.25 is Fig.23 a side view of

[0049] Fig.26 is Fig.14 the front view of

[0050] Fig. 27 is Fig.26 an exploded structural schematic diagram of

[0051] Fig.28 is Fig. 27 a partial exploded structural schematic diagram of

[0052] Fig.29 is Fig.26 a sectional view in the G-G direction of

[0053] Fig.30 is Fig.26 a sectional view in the H-H direction of

[0054] Fig.31 is Figure 8 a partial exploded structural schematic diagram in

[0055] Fig.32 is Fig.31 a partial structural schematic diagram of

[0056] Fig.33 is Fig.32 a decomposed structural schematic diagram of

[0057] Fig.34 is Fig.32 a side view of

[0058] Fig.35 is Fig.33 a structural schematic diagram of the pressure relief valve in

[0059] Fig.36 is Fig.35 a structural schematic diagram from another perspective of

[0060] Fig.37 is Fig.34 a sectional view taken along the I-I direction in

[0061] Fig.38 is Fig.34 a sectional view taken along the J-J direction in

[0062] Fig.39 is Fig.32 a structural schematic diagram of the key component in

[0063] Fig.40 is Fig.39 a decomposed structural schematic diagram of

[0064] Fig.41 is Fig.40 a structural schematic diagram from another perspective of

[0065] Fig.42 is Fig.32 a magnified structural schematic diagram of the K area in

[0066] Fig.43 is Fig.42 a decomposed structural schematic diagram of

[0067] Fig.44 is Fig.43 a structural schematic diagram of the elastic component in

[0068] Fig.45 is Fig.42 a structural schematic diagram of the locking part engaging with the lock tongue in

[0069] Fig.46 is Fig.45 a decomposed structural schematic diagram of

[0070] Fig.47 is Figure 8 a side view of the side plate in

[0071] Fig.48 is Fig.47 a schematic structural view from another perspective.

[0072] Fig.49 is Fig.48 an enlarged schematic structural view of region L therein.

[0073] Fig.50 is Fig.48 an enlarged schematic structural view of region M therein.

[0074] Fig.51 is Fig.47 a cross-sectional view taken along the N-N direction therein.

[0075] Fig.52 is Figure 5 a partial schematic structural view of

[0076] Fig.53 is Fig.52 an exploded schematic structural view of

[0077] Fig.54 is Fig.52 a cross-sectional view of

[0078] Explanation of the reference numerals is as follows: 100, cabinet; 100a, storage chamber; 200, cabinet door; 201, door panel; 202, upper end cover; 203, lower end cover; 204, inner door liner; 2041, rib in the liner; 2042, support block; 2043, limit card slot; 2044, support platform; 205, adapter seat; 2050, adapter cavity; 2051, adapter joint; 206, adapter pipe; 2061, vertical pipe part; 2062, horizontal pipe part; 301, vacuum pump; 302, vacuum pumping pipeline; 1, cabinet body; 10, storage cavity; 101, clamping block; 102, lock hole; 103, vacuum connection pipe; 104, pressure relief hole; 105, support part; 11, sealing ring; 111, connecting part; 112, elastic sealing part; 1121, elastic wall; 1122, sealing wall; 12, rotating seat; 121, rotating column; 122, limiting surface; 13, rotating shaft part; 14, shelf; 141, fitting part; 142, notch area; 143, elastic hook; 1431, hook part; 15, retaining edge; 16, support rib; 161, support groove; 162, clamping projection; 2, cabinet door; 21, lock tongue; 211, lock opening; 212, bending part; 22, avoidance groove; 221, rotating cavity; 222, rotating shaft groove; 223, stop surface; 23, door shell; 231, sealing surface; 232, relief groove; 233, first positioning hole; 234, first observation port; 235, second positioning hole; 236, limiting ring; 237, sealing groove; 24, door cover; 241, flanging plate; 242, second observation port; 25, reinforcing iron; 251, first mounting hole; 26, observation window; 261, observation part; 262, clamping plate part; 263, second mounting hole; 27, sealing element; 271, positioning part; 272, clamping part; 3, side plate; 30, mounting cavity; 31, first buckle; 32, absent area; 33, key hole; 34, locking groove; 341, first locking arm; 342, second locking arm; 343, first reinforcing plate; 344, second reinforcing plate; 4, top cover; 41, second buckle; 42, rotating shaft hole; 43, protruding part; 5, pressure relief valve; 51, sealing convex part; 511, first sealing surface; 512, second sealing surface; 513, sealing ring groove; 52, penetrating part; 53, limiting convex part; 6, connecting rod; 61, connecting arm; 62, key arm; 621, fixing hole; 63, locking part; 631, lock block; 632, pressing surface; 633, limiting groove; 634, step part; 64, connecting rib; 7, key assembly; 71, fixed key; 711, rotating shaft part; 712, limiting column; 72, pressing key; 721, extending arm; 722, rotating groove; 723, limiting cavity; 724, limiting rib; 8, elastic part; 81, fixed sleeve; 811, bottom clamping plate; 812, first side clamping plate; 813, second side clamping plate; 814, first top clamping plate; 8141, first abutting part; 8142, first clamping arm; 815, second top clamping plate; 8151, second abutting part; 8152, second clamping arm;82. Elastic arm; Detailed implementation mode

[0079] Typical implementation modes reflecting the features and advantages of the present utility model will be described in detail in the following description. It should be understood that the present utility model can have various changes in different implementation modes, all of which do not depart from the scope of the present utility model, and the descriptions and illustrations therein are essentially for illustrative purposes and not for limiting the present utility model.

[0080] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0081] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0082] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0083] In the existing refrigerator industry, vacuum preservation modules are usually vacuum drawers and vacuum preservation boxes. Vacuum drawers are usually arranged inside the box body, which requires occupying the space of the storage compartment and has a relatively high cost. Vacuum preservation boxes are usually arranged on the box door, but the storage space of the vacuum preservation box is small and the operation convenience is poor.

[0084] Figure 1 It is a schematic structural diagram of a refrigerator according to an embodiment of the present utility model.

[0085] Please refer to Figure 1As shown, the refrigerator provided by the embodiment of the present utility model may include a box body 100. The box body 100 may adopt a hollow cuboid structure. It can be understood that in other embodiments, the box body 100 may also adopt a hollow shell structure of other shapes.

[0086] In some embodiments, a storage compartment 100a may be formed inside the box body 100. The storage compartment 100a may serve as an independent storage space for use as a refrigerating compartment, a variable temperature compartment, a freezing compartment, etc., to meet different storage requirements such as refrigeration and freezing according to the types of stored items.

[0087] In some embodiments, multiple storage compartments 100a may be provided inside the box body 100. The multiple storage compartments 100a may be arranged in the box body 100 in an up-and-down or left-and-right partitioned manner.

[0088] Figure 2 Yes Figure 1 Schematic diagrams of the structure of the middle door 200 and the vacuum cabinet.

[0089] Please refer to Figure 1 to Figure 2 As shown, in some embodiments, a door 200 may be provided on the front side of the box body 100. The door 200 may be used to open and close the storage compartment 100a. The door 200 and the box body 100 may be connected 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 compartment 100a.

[0090] In some embodiments, multiple doors 200 may be provided. The multiple doors 200 may be provided in one-to-one correspondence with the multiple storage compartments 100a. It should be noted that in other embodiments, multiple doors 200 may also open and close one storage compartment 100a simultaneously.

[0091] Please refer to Figure 1 to Figure 2 As shown, in some embodiments, a liner (not marked in the figure) may be provided inside the box body 100. The storage compartment 100a may be formed inside the liner. Multiple liners may be provided inside the box body 100. The multiple liners may be arranged in the box body 100 in an up-and-down or left-and-right partitioned manner. One or more storage compartments 100a may be formed inside each liner.

[0092] In some embodiments, a foam layer (not marked in the figure) may be provided inside the box body 100. The foam layer may be formed in the space between the outer wall of the liner and the inner wall of the box body 100. The foam layer may be used to insulate the liner and the interior of the storage compartment 100a to achieve the heat preservation performance of the refrigerator.

[0093] Please refer to Figures 1 to 4As shown, in some embodiments, a refrigeration system (not labeled in the figure) may be provided inside the cabinet 100. The refrigeration system may be disposed 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 compartment 100a.

[0094] 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 connected in sequence to form a refrigeration circuit. The refrigerant may circulate within the refrigeration circuit to achieve refrigeration inside the cabinet 100.

[0095] Figure 3 is Figure 2 a schematic exploded view of. Figure 4 is Figure 3 an enlarged schematic view of area A in. Figure 5 is Figure 3 a schematic exploded view of the door 200 in.

[0096] Please refer to Figures 2 to 5 As shown, in some embodiments, the door 200 may include a door panel 201. The door panel 201 may be disposed on the front wall of the door 200. The door panel 201 may serve as the front-side appearance surface of the door 200.

[0097] In some embodiments, the door 200 may include an upper end cap 202. The upper end cap 202 may be disposed in the top region of the door 200. The upper end cap 202 may be disposed in the top region on the back surface of the door panel 201. The top surface of the upper end cap 202 may serve as the top-side appearance surface of the door 200. The upper end cap 202 may improve the structural strength of the top region of the door 200.

[0098] In some embodiments, the door 200 may include a lower end cap 203. The lower end cap 203 may be disposed in the bottom region of the door 200. The lower end cap 203 may be disposed in the bottom region on the back surface of the door panel 201. The bottom surface of the lower end cap 203 may serve as the bottom-side appearance surface of the door 200. The lower end cap 203 may improve the structural strength of the bottom region of the door 200.

[0099] In some embodiments, the door 200 may include a door inner liner 204. The door inner liner 204 may be disposed on the inner sidewall of the door 200. The door inner liner 204 may be disposed on the sidewall of the door 200 facing the storage compartment 100a. A foaming layer may be formed between the door inner liner 204 and the door panel 201 of the door 200. The foaming layer may be used to thermally insulate the inside of the door 200 and the inside of the storage compartment 100a to achieve the heat preservation performance of the refrigerator.

[0100] Figure 6 is Figure 3 a schematic view of the structure of the vacuum cabinet in. Figure 7 is Figure 6 A schematic structural diagram in another state.

[0101] Please refer to 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 sidewall of the door 200. A storage cavity 10 may be formed inside the vacuum cabinet. The storage cavity 10 may be used for evacuating, and thus a vacuum environment may be formed in the storage cavity 10, and then it may be used for vacuum preservation of food ingredients.

[0102] Please refer to Figure 1 As shown, in some embodiments, when the door 200 is closed, the vacuum cabinet may be arranged in the storage chamber 100a. Utilizing the low-temperature environment in the storage chamber 100a, the vacuum cabinet is stored in a low-temperature environment, and then the vacuum low-temperature preservation function of food ingredients is realized.

[0103] Please refer to Figure 3 As shown, in some embodiments, the refrigerator may include a vacuum pumping assembly. The vacuum pumping assembly may be communicated with the storage cavity 10 inside the vacuum cabinet. The vacuum pumping assembly may be used for evacuating the inside of the storage cavity 10, and thus a vacuum environment may be formed inside the storage cavity 10.

[0104] In some embodiments, the vacuum pumping assembly may include a vacuum pump 301 and a vacuum pumping pipeline 302. The vacuum pump 301 may be communicated with the storage cavity 10 inside the vacuum cabinet through the vacuum pumping pipeline 302. The vacuum pump 301 may extract the gas inside the storage cavity 10 through the vacuum pumping pipeline 302, and thus a vacuum environment may be formed inside the storage cavity 10.

[0105] In some embodiments, the vacuum pump 301 may be disposed inside the upper end cover 202. The vacuum pumping pipeline 302 may be disposed in the foaming layer between the door inner liners 204. Therefore, the vacuum pump 301 and the vacuum pumping pipeline 302 may not be exposed and do not additionally occupy the space of the storage chamber 100a.

[0106] Please refer to Figure 6 to Figure 7 As shown, in some embodiments, the vacuum cabinet may include a cabinet body 1. The cabinet body 1 may be disposed on the inner sidewall of the door 200. The storage cavity 10 may be formed inside the cabinet body 1. An opening may be formed on the front wall of the cabinet body 1. The opening may communicate with the inside of the storage cavity 10.

[0107] In some embodiments, the vacuum cabinet can be disposed on the inner door liner 204. A rib 2041 can be protruded on the inner door liner 204. The rib 2041 can be arranged to extend vertically. The rib 2041 can be disposed on the inner sidewall of the door 200. There can be two ribs 2041. The two ribs 2041 can be arranged at intervals left and right on the inner sidewall of the door 200. The vacuum cabinet can be disposed between the two ribs 2041. The cabinet body 1 can be fixed in the area between the two ribs 2041.

[0108] It should be noted that since the cabinet body 1 can be arranged in the area between the two ribs 2041 on the inner side of the door 200. Therefore, the size of the cabinet body 1 is relatively large, and the space of the storage cavity 10 inside the cabinet body 1 is large enough, which is beneficial to meeting the space requirement of the storage cavity 10 in the vacuum cabinet and can effectively solve the problem of the small storage space of the existing vacuum fresh-keeping box.

[0109] In some embodiments, a clamping block 101 can be respectively protruded on the left and right sidewalls of the cabinet body 1. The cabinet body 1 can be fixed on the rib 2041 through the clamping block 101, and further fix the cabinet body 1 of the vacuum cabinet in the area between the two ribs 2041.

[0110] Please refer to Figures 4 to 7 As shown, in some embodiments, a support block 2042 is protruded on the sidewall of the rib 2041 facing the cabinet body 1. A limiting slot 2043 is formed between the support block 2042 and the inner sidewall of the door 200. The clamping block 101 can be inserted and fixed in the limiting slot 2043, and further fix the cabinet body 1 on the sidewall of the inner door liner 204.

[0111] In some embodiments, there can be at least two support blocks 2042. The at least two support blocks 2042 can be respectively arranged on the opposite sidewalls of the two ribs 2041. At least one support block 2042 can be respectively arranged on the left and right sidewalls of the cabinet body 1. Therefore, the left and right sidewalls of the cabinet body 1 can be respectively clamped in the limiting slot 2043 inside the support block 2042 through at least one clamping block 101, and further realize fixing the cabinet body 1 in the area between the two ribs 2041.

[0112] In some embodiments, a plurality of support blocks 2042 can be arranged on the sidewall of the rib 2041. The plurality of support blocks 2042 can be arranged at intervals up and down on the sidewall of the inner door liner 204. A plurality of clamping blocks 101 can be arranged on the sidewall of the cabinet body 1. The plurality of clamping blocks 101 can be arranged at intervals up and down on the sidewall of the cabinet body 1. The plurality of clamping blocks 101 can be correspondingly clamped with the plurality of support blocks 2042 one by one.

[0113] Please refer to Figures 2 to 5As shown, in some embodiments, a support platform 2044 may be convexly provided on the inner sidewall of the cabinet door 200. The support platform 2044 may be convexly provided on the inner door liner 204. The support platform 2044 may be provided in the area between two rib members 2041. The support platform 2044 may be arranged to extend horizontally. The two horizontal ends of the support platform 2044 may be respectively connected to a rib member 2041. The support platform 2044 may be used to support the vacuum cabinet. When the cabinet body 1 is fixed between the two rib members 2041, the bottom of the cabinet body 1 can be supported on the support platform 2044.

[0114] Please refer to 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 sidewall of the cabinet body 1. One side edge of the cabinet door 2 may be rotatably connected to the front sidewall of the cabinet body 1.

[0115] In some embodiments, the rotation axis of the cabinet door 2 may be provided at one side edge of the cabinet door 2. The rotation axis of the cabinet door 2 may be arranged to extend along the height direction of the cabinet body 1.

[0116] In some embodiments, the rotation axis of the cabinet door 2 may be provided on the side of the cabinet body 1 away from the rotation axis of the cabinet door 200, so as to facilitate opening the cabinet door 2 further when the cabinet door 200 is opened.

[0117] Please refer to Figures 2 to 7 As shown, in some embodiments, a locking tongue 21 may be provided on the side of the cabinet door 2 away from its rotation axis. The cabinet door 2 may be locked and fixed to the cabinet body 1 through the locking tongue 21 to close the storage cavity 10. After the locking tongue 21 is unlocked from the cabinet body 1, the cabinet door 2 can be opened.

[0118] In some embodiments, the locking tongue 21 may be convexly provided on the inner sidewall of the cabinet door 2. The locking tongue 21 may protrude and extend from the inner sidewall of the cabinet door 2 towards the cabinet body 1.

[0119] In some embodiments, a lock hole 102 may be formed on the front sidewall of the cabinet body 1. When the cabinet door 2 is closed, the locking tongue 21 may be arranged opposite to the hole, and the locking tongue 21 may extend into and be arranged inside the lock hole 102, and then be clamped or separated from the inside of the cabinet body 1 to achieve locking and unlocking of the cabinet door 2.

[0120] Please refer to Figure 7 As shown, in some embodiments, at least two locking tongues 21 are provided on the cabinet door 2. The two locking tongues 21 may be arranged at intervals along the height direction of the cabinet door 2. The two locking tongues 21 may be arranged at intervals along the axial direction of the rotation axis of the cabinet door 2. At least two lock holes 102 are formed on the front wall of the cabinet body 1. The two lock holes 102 may be arranged at intervals along the height direction of the cabinet body 1.

[0121] It should be noted that in other embodiments, the number and positions of the locking tongues 21 and the lock holes 102 can be adjusted as needed, and no limitation is imposed herein.

[0122] Figure 8 is Figure 6 a schematic exploded view of Fig. 9 is Figure 6 a schematic structural view from another perspective. Fig.10 is Fig. 9 a schematic exploded view of

[0123] Please refer to Figures 6 to 10 As shown, in some embodiments, the vacuum cabinet may include side plates 3. The side plates 3 may be fixed to the side walls of the cabinet body 1. There may be two side plates 3. The two side plates 3 may be respectively fixed to the left and right outer side walls of the cabinet body 1.

[0124] Please refer to Figure 8 and Fig.10 As shown, in some embodiments, the side plates 3 may be detachably fixed to the outer side walls of the cabinet body 1. A first snap 31 may protrude from the side wall of the side plate 3 facing the cabinet body 1. A first snap hole (not labeled in the figure) may be formed in the corresponding outer side wall of the cabinet body 1. The first snap 31 may be snapped into the first snap hole, so that the side plate 3 can be snap-fixed to the outer side wall of the cabinet body 1.

[0125] In some embodiments, a plurality of first snaps 31 may protrude from the side plate 3. The plurality of first snaps 31 may be circumferentially spaced and arranged at the circumferential side edge of the side plate 3. A plurality of first snap holes may be formed in the corresponding outer side walls of the cabinet body 1. The plurality of first snap holes may be arranged in one-to-one correspondence with the plurality of first snaps 31.

[0126] It should be noted that in other embodiments, the number and positions of the first snaps 31 and the first snap holes can be adjusted as needed, and no limitation is imposed herein.

[0127] Please refer to Figures 6 to 10 As shown, in some embodiments, reinforcing ribs (not labeled in the figure) may protrude from the left and right side walls of the cabinet body 1 respectively. The reinforcing ribs can be used to improve the structural strength of the left and right side walls of the cabinet body 1. When evacuating the storage cavity 10, the reinforcing ribs can help maintain the shape inside the cabinet body 1 and improve the structural strength of the cabinet body 1.

[0128] In some embodiments, the side plates 3 may cover the reinforcing ribs on the side walls of the cabinet body 1. The two side plates 3 may respectively cover the reinforcing ribs on the left and right side walls of the cabinet body 1, so as to keep the appearance of the vacuum cabinet beautiful.

[0129] In some embodiments, reinforcing ribs may be provided on the side wall of the side plate 3 facing the cabinet body 1. The reinforcing ribs can be used to enhance the structural strength of the side plate 3.

[0130] In some embodiments, the clamping blocks 101 on the outer wall of the cabinet body 1 may be arranged outside the area corresponding to the reinforcing ribs. A missing area 32 may be provided on the side plate 3. When the side plate 3 covers the corresponding outer wall of the cabinet body 1, the clamping blocks 101 may be arranged within the missing area 32, and the clamping blocks 101 may be exposed outside the side plate 3.

[0131] Please refer to Figure 2 As shown, in some embodiments, when the cabinet body 1 of the vacuum cabinet is fixed between two rib members 2041, the rib members 2041 can cover the missing area 32 and the clamping blocks 101, thereby maintaining the aesthetic appearance of the vacuum cabinet.

[0132] Please refer to Figures 6 to 10 As shown, in some embodiments, reinforcing ribs (not labeled in the figure) may be provided on the bottom surface of the cabinet body 1. The reinforcing ribs can be used to improve the structural strength of the bottom side wall of the cabinet body 1. When evacuating the storage cavity 10, the reinforcing ribs can help maintain the shape inside the cabinet body 1 and improve the structural strength of the cabinet body 1.

[0133] Please refer to Figure 2 As shown, in some embodiments, when the cabinet body 1 is fixed between two rib members 2041, the bottom wall of the cabinet body 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 body 1, thereby maintaining the aesthetic appearance of the vacuum cabinet. Part of the reinforcing ribs on the bottom surface of the cabinet body 1 that are not covered are located at the bottom of the cabinet body 1 and are difficult to see, so they do not affect the aesthetic appearance of the vacuum cabinet.

[0134] It should be noted that in other embodiments, the support platform 2044 can also cover the entire bottom surface of the cabinet body 1, and thus cover all the reinforcing ribs on the bottom wall of the cabinet body 1.

[0135] Please refer to Figures 6 to 10 As shown, in some embodiments, reinforcing ribs may be provided on the outer side of the top wall of the cabinet body 1. The reinforcing ribs can be used to improve the structural strength of the top wall of the cabinet body 1. When evacuating the storage cavity 10, the reinforcing ribs can help maintain the shape inside the cabinet body 1 and improve the structural strength of the cabinet body 1.

[0136] In some embodiments, the vacuum cabinet may include a top cover 4. The top cover 4 can cover the reinforcing ribs on the outer side of the top wall of the cabinet body 1, thereby maintaining the aesthetic appearance of the vacuum cabinet.

[0137] In some embodiments, reinforcing ribs (not labeled in the figure) may be provided on the bottom side wall of the top cover 4 facing the cabinet body 1. The reinforcing ribs can be used to enhance the structural strength of the top cover 4.

[0138] In some embodiments, the top cover 4 can be detachably fixed to the top side wall of the cabinet body 1. A second buckle 41 can be protrudingly provided on the bottom wall of the top cover 4 facing the cabinet body 1. A second card hole (not marked in the figure) can be formed on the top side wall of the cabinet body 1. The second buckle 41 can be snapped into the second card hole, so that the top cover 4 can be snap-fixed above the top wall of the cabinet body 1.

[0139] In some embodiments, a plurality of second buckles 41 can be protrudingly provided on the top cover 4. The plurality of second buckles 41 can be circumferentially spaced and arranged at the circumferential side edge of the top cover 4. A plurality of second card holes can be formed on the top wall of the cabinet body 1. The plurality of second card holes can be arranged in one-to-one correspondence with the plurality of second buckles 41.

[0140] It should be noted that in other embodiments, the number and positions of the second buckle 41 and the second card hole can be adjusted as needed, and are not limited herein.

[0141] Please refer to Figures 6 to 10 As shown, in some embodiments, a reinforcing rib (not marked in the figure) can be provided on the back surface of the cabinet body 1. The reinforcing rib can be used to improve the structural strength of the rear wall of the cabinet body 1. When evacuating the storage cavity 10, the reinforcing rib can help maintain the shape inside the cabinet body 1 and improve the structural strength of the cabinet body 1.

[0142] Please refer to Figure 2 As shown, when the cabinet body 1 is provided inside the door 200, the reinforcing rib on the back surface of the cabinet body 1 can be hidden between the back surface of the cabinet body 1 and the inner side wall of the door 200, so as to keep the appearance of the vacuum cabinet beautiful.

[0143] Please refer to Figures 9 and 10 As shown, in some embodiments, a vacuum connection pipe 103 can be protrudingly provided on the back surface of the cabinet body 1. The vacuum connection pipe 103 can communicate with the storage cavity 10 inside the cabinet body 1. When the cabinet body 1 is provided on the inner side wall of the door 200, the evacuation pipeline 302 can be connected to the vacuum connection pipe 103. Therefore, the vacuum pump 301 can extract the air in the storage cavity 10 through the evacuation pipeline 302 and the vacuum connection pipe 103, so that a vacuum environment can be formed in the storage cavity 10.

[0144] Fig.11 is Figure 7 the structural schematic diagram of the cabinet body 1 in Fig.12 is Fig.11 the structural schematic diagram of the sealing ring 11 in Fig.13 is Fig.12 the sectional view taken along the line B-B in

[0145] Please refer to Figures 6 to 13As shown, in some embodiments, a sealing ring 11 may be provided on the front wall of the cabinet body 1. The sealing ring 11 may be annular. The sealing ring 11 may be circumferentially arranged around the peripheral side edge of the front side opening of the storage cavity 10. When the cabinet door 2 is closed and locked, the inner side wall of the cabinet door 2 can abut against the sealing ring 11, thereby sealing the storage cavity 10. At this time, the locking tongue 21 can be clamped and locked with the cabinet body 1, thereby clamping the sealing ring 11 between the front wall of the cabinet body 1 and the inner side wall of the cabinet door 2, and sealing the gap between the front wall of the cabinet body 1 and the inner side wall of the cabinet door 2 through the sealing ring 11, thereby sealing the storage cavity 10.

[0146] Please refer to Fig.13 As 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 on the back of the sealing ring 11. The connecting portion 111 may be used to connect with the front wall of the box body 100. The connecting portion 111 may be annular. The connecting portion 111 may be circumferentially arranged around the peripheral side edge of the front side opening of the storage cavity 10.

[0147] In some embodiments, an installation groove (not shown in the figure) may be formed on the front wall of the cabinet body 1. The installation groove may be annular. The installation groove may be circumferentially arranged around the periphery of the front side opening of the storage cavity 10. The connecting portion 111 may be embedded in the installation groove, thereby fixing the sealing ring 11 on the front wall of the cabinet body 1.

[0148] Please refer to 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 of the sealing ring 11. The elastic sealing portion 112 may extend forwardly 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, making the sealing ring 11 in sealed contact with the cabinet door 2, thereby sealing the storage cavity 10.

[0149] Please refer to Fig.13 As shown, in some embodiments, the elastic sealing portion 112 includes an integrally connected elastic wall 1121 and a sealing wall 1122. The elastic wall 1121 may extend forwardly from the front end surface of the connecting portion 111. The sealing wall 1122 may extend by bending from the front end of the elastic wall 1121 toward the peripheral side of the front side opening of the storage cavity 10. When the cabinet door 2 is locked and closed, the inner side wall of the cabinet door 2 can be in sealed contact with the sealing wall 1122, and the elastic wall 1121 can be squeezed by the sealing wall 1122, making the sealing ring 11 in sealed contact with the cabinet door 2, thereby sealing the storage cavity 10.

[0150] In some embodiments, when the locking tongue 21 is separated from the cabinet body 1 and the cabinet door 2 is 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 opening force for the cabinet door 2, so that the cabinet door 2 can be automatically opened by a certain angle, which is convenient for the user to easily open the cabinet door 2.

[0151] Fig.14 Yes Figure 7 It is a schematic structural diagram of the middle cabinet door 2. Fig.15 Yes Fig. 9 It is a schematic structural diagram from another perspective.

[0152] Please refer to 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 avoiding groove 22 arranged opposite to the rotating seat 12 may be concavely provided at one side edge of the cabinet door 2. The rotating seat 12 may be rotatably connected in the avoiding groove 22. When the cabinet door 2 rotates relative to the cabinet body 1, the rotating seat 12 may rotate relative to the inside of the avoiding groove 22.

[0153] 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 avoiding grooves 22 may be provided at one side edge of the cabinet door 2. The plurality of avoiding grooves 22 may be arranged at intervals along the height direction of the cabinet door 2. The plurality of avoiding grooves 22 may be connected to the plurality of rotating seats 12 in one-to-one correspondence.

[0154] It should be noted that in some other embodiments, the number and positions of the rotating seat 12 and the avoiding groove 22 may be adjusted according to needs, and are not limited herein.

[0155] Fig.16 Yes Fig.15 It is a cross-sectional view of Fig.17 Yes Fig.16 It is an enlarged structural schematic diagram of area C in

[0156] Please refer to Figures 11 to 17 As shown, in some embodiments, a rotating column 121 extending upward may be convexly provided on the top surface of the rotating seat 12. The rotating column 121 may be arranged on the rotation axis of the cabinet door 2. A rotating cavity 221 may be opened on the top side wall of the avoiding groove 22. The rotating cavity 221 may communicate with the avoiding groove 22. When the rotating seat 12 is arranged in the avoiding groove 22, the rotating column 121 can be rotatably extended into and arranged in the rotating cavity 221.

[0157] When the cabinet door 2 rotates relative to the cabinet body 1, the rotating column 121 can serve as the rotating axis of the cabinet door 2, enabling the cabinet door 2 to rotate relative to the rotating column 121 and the rotating seat 12. The cabinet door 2 can rotate about the axis of the rotating column 121.

[0158] In some embodiments, the rotating columns 121 on multiple rotating seats 12 can be arranged at intervals coaxially. The rotating columns 121 on multiple rotating seats 12 can all be arranged on the rotating axis of the cabinet door 2.

[0159] Please refer to Fig.17 As shown, in some embodiments, the axial length of the rotating seat 12 and the rotating column 121 thereon is less than the axial width of the avoidance groove 22. The rotating seat 12 and the rotating column 121 thereon can directly extend into the avoidance groove 22, and then move upward along the axis, enabling the rotating column 121 to extend into and be arranged in the rotating cavity 221, simplifying the installation structure of the cabinet door 2.

[0160] Fig.18 Yes Fig.16 It is an enlarged structural schematic diagram of area D in

[0161] Please refer to Figures 8 to 18 As shown, in some embodiments, the vacuum cabinet can include a rotating shaft member 13. The rotating shaft member 13 can protrude from the top of the cabinet door 2. The rotating shaft member 13 can extend upward from the top of the cabinet door 2. The rotating shaft member 13 can be arranged on the rotating axis of the cabinet door 2. A rotating shaft hole 42 can be formed on the bottom surface of the top cover 4. The upper end of the rotating shaft member 13 can be detachably inserted into the rotating shaft hole 42. When the top cover 4 is covered on the top surface of the cabinet body 1, the upper end of the rotating shaft member 13 can be inserted into the rotating shaft hole 42.

[0162] In some embodiments, the rotating shaft member 13 can be fixed to the top of the cabinet door 2. The rotating shaft member 13 can be coaxially arranged with the rotating column 121 on the rotating seat 12. When the cabinet door 2 rotates relative to the cabinet body 1, the rotating shaft member 13 can rotate synchronously with the cabinet door 2, and the rotating shaft member 13 can rotate in the rotating shaft hole 42.

[0163] Please refer to Figures 8 to 18 As shown, in some embodiments, a rotating shaft groove 222 can be recessed on the top of the cabinet door 2. The rotating shaft groove 222 can extend downward vertically. The rotating shaft groove 222 can be arranged on the rotating axis of the cabinet door 2. The lower end of the rotating shaft member 13 can be detachably inserted and fixed in the rotating shaft groove 222, enabling the rotating shaft member 13 and the cabinet door 2 to rotate synchronously.

[0164] In some embodiments, the rotating shaft can also be integrally formed on the top of the cabinet door 2.

[0165] It should be noted that in some other embodiments, the rotating shaft member 13 can also be fixed to the bottom of the top cover 4. The rotating shaft member 13 can also extend downward from the bottom surface of the top cover 4. When the top cover 4 is covered on the top surface of the cabinet body 1, the lower end of the rotating shaft member 13 can be inserted into the rotating shaft hole 42. At this time, the lower end of the rotating shaft member 13 can be rotatably arranged in the rotating shaft hole 42. When the cabinet door 2 rotates relative to the cabinet body 1, the cabinet door 2 can rotate around the rotating shaft member 13 and relative to the rotating shaft member 13, and then rotate relative to the cabinet body 1.

[0166] Fig.19 is Figure 7 the front view of. Fig. 20 is Fig.19 the cross-sectional view taken along the line E-E in.

[0167] Please refer to Figures 8 to 20 As shown, in some embodiments, a stop surface 223 can be formed on the groove wall of the avoidance groove 22. When the cabinet door 2 rotates and opens, the stop surface 223 of the avoidance groove 22 can contact and abut against the side wall surface of the rotating seat 12. At this time, the cabinet door 2 is at the maximum opening angle position. Therefore, the opening angle of the cabinet door 2 can be limited by the stop surface 223, and the problem of the opening stop of the cabinet door 2 can be solved. By the contact and abutment of the stop surface 223 with the side wall surface of the rotating seat 12, the impact between the cabinet door 2 and the cabinet body 1 can be reduced when the user opens the door, and the cabinet door 2 and the cabinet body 1 can be prevented from being damaged. This solution has a simple structure and is beneficial to improving the operation convenience of the user.

[0168] In some embodiments, a limiting surface 122 can be formed on the side wall of the rotating seat 12 away from the storage cavity 10. When the cabinet door 2 rotates and opens to the maximum angle, the stop surface 223 of the avoidance groove 22 can contact and abut against the limiting surface 122 of the rotating seat 12, and thus the opening angle of the cabinet door 2 can be limited, the problem of the opening stop of the cabinet door 2 can be solved, and the impact between the cabinet door 2 and the cabinet body 1 can be reduced, and the cabinet door 2 and the cabinet body 1 can be prevented from being damaged.

[0169] In some embodiments, the limiting surface 122 of the rotating seat 12 can be arranged parallel to the side wall of the cabinet body 1. It should be noted that in other embodiments, the limiting surface 122 of the rotating seat 12 can also be arranged at an angle with the side wall of the cabinet body 1.

[0170] Please refer to Figures 14 to 20 As shown, in some embodiments, the stop surface 223 of the avoidance groove 22 can extend vertically. The stop surface 223 can be arranged at the side edge of the outer side wall of the avoidance groove 22 close to the cabinet door 2. It should be noted that in other embodiments, there can also be a gap between the limiting surface 122 of the rotating seat 12 and the outer side wall of the cabinet door 2.

[0171] In some embodiments, the stop surface 223 of the avoidance groove 22 may protrude from the groove wall of the avoidance groove 22. The stop surface 223 may be an inclined surface. In the direction from the avoidance groove 22 towards the center of the cabinet door 2, the stop surface 223 may extend obliquely towards the direction close to the cabinet body 1. When the stop surface 223 abuts against the side wall of the rotating seat 12, the stop surface 223 may abut against the limiting surface 122. At this time, the opening angle of the cabinet door 2 may be greater than 90°. The maximum opening angle of the cabinet door 2 can be adjusted according to the inclination angle of the stop surface 223.

[0172] Please refer to Figures 14 to 20 As shown, in some embodiments, stop surfaces 223 are respectively provided in a plurality of avoidance grooves 22. When the cabinet door 2 rotates and opens to the maximum angle, the stop surfaces 223 in the plurality of avoidance grooves 22 can be in surface contact and abutment with the limiting surfaces 122 of the side walls of the plurality of rotating seats 12 one by one, so as to stop the cabinet door 2 together and jointly reduce the impact between the cabinet door 2 and the cabinet body 1, and avoid damaging the cabinet door 2 and the cabinet body 1.

[0173] Please refer to Figures 11 to 20 As shown, in some embodiments, the front end of the top cover 4 may protrude from the front wall of the cabinet body 1. The front end of the top cover 4 may form a protruding portion 43. The protruding portion 43 may protrude from the front wall of the cabinet body 1. The rotating shaft hole 42 may be provided on the bottom surface of the protruding portion 43. When the cabinet door 2 is closed, the protruding portion 43 can cover at least part of the top surface of the cabinet door 2.

[0174] In some embodiments, the width of the protruding portion 43 is the same as the thickness of the cabinet door 2. When the cabinet door 2 is closed, the protruding portion 43 can cover the entire top surface of the cabinet door 2.

[0175] It should be noted that in other embodiments, the width of the protruding portion 43 may also be greater than or less than the thickness of the cabinet door 2.

[0176] Fig.21 is Fig.11 a schematic exploded view of

[0177] Please refer to Fig.11 and Fig.21 As shown, in some embodiments, a shelf 14 may be provided inside the cabinet body 1. The shelf 14 may be provided in the storage cavity 10. The shelf 14 may be a plate-shaped structural member. The shelf 14 may extend horizontally. Both ends of the shelf 14 may be detachably fixed to the left and right side walls of the storage cavity 10. Both ends of the shelf 14 may be detachably fixed to the left and right inner side walls of the cabinet body 1. The shelf 14 can be used to divide the space inside the storage cavity 10 vertically, which is convenient for storing food materials in the storage cavity 10 in layers.

[0178] In some embodiments, when the storage cavity 10 is evacuated by the evacuation assembly, the cabinet body 1 of the vacuum cabinet can deform inward under the action of the external pressure. The two ends of the shelf 14 can respectively abut against the left and right side walls of the storage cavity 10, which can strengthen the internal structural strength of the cabinet body 1, facilitate maintaining the overall shape of the vacuum cabinet, and prevent the vacuum cabinet from deforming inward.

[0179] In some embodiments, a clearance fit can be provided between the transverse end faces of the shelf 14 and the side walls of the storage cavity 10. When the storage cavity 10 is not evacuated, a first assembly gap (not shown in the figure) can be formed between the transverse end faces of the shelf 14 and the side walls of the storage cavity 10. The width of the first assembly gap can be adjusted as needed and is not limited herein. When the storage cavity 10 is evacuated by the evacuation assembly, the cabinet body 1 deforms inward under the action of the external pressure, causing the left and right side walls of the storage cavity 10 to abut against the left and right ends of the shelf 14. At this time, the gap width of the first assembly gap becomes zero, and the shelf 14 can prevent the left and right side walls of the cabinet body 1 from continuing to deform inward, thereby maintaining the overall shape of the vacuum cabinet and strengthening the internal structural strength of the cabinet body 1.

[0180] Please refer to Fig.11 and Fig.21 As shown, in some embodiments, a horizontally extending stop edge 15 can be protruded inside the cabinet body 1. The stop edge 15 can be provided on the rear side wall of the storage cavity 10. A second assembly gap (not shown in the figure) can be formed between the rear side edge of the shelf 14 and the rear side wall of the storage cavity 10. The stop edge 15 can cover the upper side of the rear side edge of the shelf 14. The stop edge 15 can completely cover the second assembly gap, preventing the food ingredients on the shelf from entering the second assembly gap and avoiding the second assembly gap from affecting the appearance of the product.

[0181] In some embodiments, the gap width of the second assembly gap can be designed as needed and is not limited herein. The width of the stop edge 15 can be greater than the gap width of the second assembly gap, so that the stop edge 15 can completely cover the second assembly gap.

[0182] In some embodiments, the length of the stop edge 15 can be greater than or equal to the transverse length of the shelf 14, so that the stop edge 15 can completely cover the second assembly gap between the rear side edge of the shelf 14 and the rear side wall of the storage cavity 10.

[0183] Fig. 22 is Fig.21 an enlarged structural schematic diagram of the F area in

[0184] Please refer to Fig.11 、 Fig.21 and Fig. 22As shown, in some embodiments, the left and right side walls of the storage cavity 10 may each be convexly provided with a support rib 16. The support rib 16 may be arranged to extend in a strip shape. The support rib 16 may be arranged to extend in the front-rear direction of the cabinet body 1. A support groove 161 may be formed in the support rib 16. The left and right end portions of the shelf 14 can be respectively inserted into and arranged in a support groove 161, so that the two end portions of the shelf 14 can be respectively supported on a support rib 16.

[0185] In some embodiments, the support groove 161 may be arranged to extend in the front-rear direction of the cabinet body 1. An opening may be provided at the front end of the support groove 161. The end portion of the shelf 14 can be inserted into and arranged in the support groove 161 through the front end opening of the support groove 161, and the end portion of the shelf 14 can slide back and forth along the support groove 161 to facilitate the installation of the shelf 14 in the storage cavity 10.

[0186] It should be noted that in some other embodiments, the support groove 161 may also be directly recessed on the left and right cavity walls of the storage cavity 10.

[0187] Fig.23 is Fig.21 A schematic structural view of the middle shelf 14. Fig.24 is Fig.23 A schematic structural view from another perspective. Fig.25 is Fig.23 A side view of.

[0188] Please refer to Fig.11 、 Figure 21 to Figure 25 As shown, in some embodiments, elastic hooks 143 may be provided on the bottom surface of the shelf 14. A clamping projection 162 may be convexly provided on the side wall of the support rib 16. When the end portion of the shelf 14 is inserted into and arranged in the support groove 161 through the front end opening of the support groove 161, the elastic hooks 143 can be clamped with the clamping projection 162, so that the end portion of the shelf 14 can be limited and fixed in the support groove 161 to prevent the end portion of the shelf 14 from easily disengaging from the support groove 161.

[0189] In some embodiments, when the end portion of the shelf 14 is inserted into and arranged in the support groove 161 through the front end opening of the support groove 161, the shelf 14 can cover the elastic hooks 143 and the clamping projection 162, hiding the elastic hooks 143 and the clamping projection 162 under the shelf 14 to avoid affecting the appearance beauty.

[0190] In some embodiments, the clamping projection 162 may be convexly provided on the side wall of the support rib 16 facing the center of the storage cavity 10. The clamping projection 162 may be located at the rear side of the support groove 161. The elastic hooks 143 may be arranged facing the inner side wall of the cabinet body 1, so that the elastic hooks 143 can be arranged facing the clamping projection 162. It should be noted that in some other embodiments, the clamping projection 162 may also be convexly provided on other side walls of the support rib 16.

[0191] Please refer to Fig.11 , Figure 21 to Figure 25 As shown, in some embodiments, an engaging portion 141 and a notch area 142 may be formed at the end of the shelf board 14. The notch area 142 may be located at the rear side of the engaging portion 141. When the shelf is installed in the storage cavity 10, the engaging portion 141 can extend into and be supported in the support groove 161. The engaging portion 141 can extend into and be arranged in the support groove 161 through the front end opening of the support groove 161, and the engaging portion 141 can be supported in the support groove 161.

[0192] In some embodiments, the elastic hook 143 may be located on the side of the notch area 142 closer to the center of the storage cavity 10. The elastic hook 143 may be located on the side of the center of the shelf board 14 in the notch area 142. When the engaging portion 141 extends into and is supported in the support groove 161, the side edge of the notch area 142 can abut against the side wall of the support rib 16 facing the center of the storage cavity 10, and the elastic hook 143 can be engaged with the convex 162, so that the elastic hook 143 and the convex 162 can be hidden under the shelf board 14 to avoid affecting the appearance.

[0193] In some embodiments, an engaging portion 141 and a notch area 142 may be respectively formed at the left and right ends of the shelf board 14. The two engaging portions 141 can respectively extend into and be supported in the support grooves 161 of a support rib 16. The side edges of the two notch areas 142 can respectively abut against the side walls of a support rib 16 facing the center of the storage cavity 10.

[0194] In some embodiments, there may be two elastic hooks 143. The two elastic hooks 143 may be respectively located on the side of the center of the shelf board 14 in a notch area 142. The two elastic hooks 143 can be respectively engaged with the convexes 162 of a support rib 16.

[0195] Please refer to Fig.24 As shown, in some embodiments, reinforcing ribs may protrude from the bottom surface of the shelf board 14. The reinforcing ribs can enhance the structural strength of the shelf board 14. When the engaging portion 141 extends into and is supported in the support groove 161, the side edge of the notch area 142 can abut against the side wall of the support rib 16 facing the center of the storage cavity 10, and the elastic hook 143 can be engaged with the convex 162

[0196] Please refer to Figure 21 to Figure 25As shown, in some embodiments, one end of the elastic catch 143 can be connected to the reinforcing rib on the bottom surface of the shelf 14. The other end of the elastic catch 143 can be an automatic end, and the automatic end of the elastic catch 143 can extend towards the rear wall direction of the storage cavity 10. The elastic catch 143 can extend along the front-rear direction of the cabinet body 1. The free end of the elastic catch 143 can be arranged inside the notch area 142. The free end of the elastic catch 143 can be arranged on the side of the notch area 142 close to the center of the shelf 14. A hook portion 1431 facing the notch area 142 can be provided on the free end of the elastic catch 143. When the fitting portion 141 extends into and is supported in the support groove 161, the hook portion 1431 of the elastic catch 143 can be engaged with the convex 162 on the support rib 16.

[0197] In some embodiments, a first inclined surface (not marked in the figure) can be provided on the side of the convex 162 facing the support groove 161. A second inclined surface (not marked in the figure) that cooperates with the first inclined surface can be provided on the hook portion 1431 of the elastic catch 143. When the fitting portion 141 slides into the support groove 161 through the front end opening of the support groove 161, the second inclined surface of the hook portion 1431 can abut against the first inclined surface of the convex 162, forcing the automatic end of the elastic catch 143 to bend and deform towards the center direction of the storage cavity 10. When the second inclined surface passes over the first inclined surface of the convex 162, the automatic end of the elastic catch 143 can recover its deformation, enabling the hook portion 1431 of the elastic catch 143 to be engaged with the convex 162 on the support rib 16, locking and fixing the fitting portion 141 in the support groove 161.

[0198] Please refer to Figure 21 to Figure 25 As shown, in some embodiments, the left and right ends of the retaining edge 15 can be respectively connected to a support rib 16. The top surface of the retaining edge 15 can be arranged flush with the top surface of the support rib 16.

[0199] Fig.26 is Fig.14 the front view of. Fig. 27 is Fig.26 an exploded structural schematic diagram of. Fig.28 is Fig. 27 a partial exploded structural schematic diagram of.

[0200] Please refer to Fig.14 、 Figure 26 to Figure 28 As shown, in some embodiments, the cabinet door 2 can include a door shell 23. The back surface of the door shell 23 can be used to abut against the sealing ring 11 on the front wall of the cabinet body 1, thereby being able to open or close the storage cavity 10.

[0201] In some embodiments, a sealing surface 231 may be formed at the circumferential side edge of the back surface 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 the storage cavity 10.

[0202] In some embodiments, a relief groove 232 may be recessed in the central region of the back surface of the door shell 23. The sealing surface 231 may be annular. The sealing surface 231 may be circumferentially arranged around the circumferential side of the relief groove 232. When the cabinet door 2 is closed, the relief groove 232 may communicate with the storage cavity 10, thereby increasing the volume inside the storage cavity 10.

[0203] Please refer to Fig.14 、 Figure 26 to Figure 27 As shown, in some embodiments, the cabinet door 2 may include a door cover 24. The door cover 24 may be disposed 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.

[0204] In some embodiments, a flanging plate 241 that extends backward and bends may be provided at the circumferential side edge of the cabinet door 2. The flanging plate 241 may cover the corresponding side wall of the door shell 23.

[0205] In some embodiments, multiple flanging plates 241 may be provided. The multiple flanging plates 241 may be arranged at different circumferential side edges of the cabinet door 2, so that the multiple flanging plates 241 can cover the outer sides of different side walls of the door shell 23.

[0206] Please refer to Figure 26 to Figure 28 As shown, in some embodiments, the cabinet door 2 may include a reinforcing iron 25. The reinforcing iron 25 may extend in a long strip shape. The reinforcing iron 25 may be fixed to the front wall of the door shell 23, thereby enhancing the structural strength of the door shell 23 and the cabinet door 2. The reinforcing iron 25 may be disposed 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.

[0207] In some embodiments, reinforcing ribs (not labeled in the figure) may protrude from the front wall of the door shell 23. The reinforcing ribs may be laid on the front wall of the door shell 23. It should be noted that the area of the region where the reinforcing ribs are located can be adjusted as needed and is not limited herein.

[0208] Fig.29 is Fig.26 the cross-sectional view taken along the G-G direction in

[0209] Please refer to Figure 26 to Figure 29As shown, in some embodiments, the reinforcing iron 25 can be detachably fixed to the reinforcing rib on the front wall of the door shell 23. The reinforcing rib on the door shell 23 can be provided with a first positioning hole 233. The reinforcing iron 25 can be provided with a first mounting hole 251 corresponding to the first positioning hole 233. 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 on the front wall of the door shell 23 by screws passing through the first mounting hole 251 and the first positioning hole 233. By using the reinforcing iron 25 in cooperation with the reinforcing rib, the structural strength of the door shell 23 and the cabinet door 2 can be further improved.

[0210] In some embodiments, the reinforcing iron 25 can be provided with a plurality of first mounting holes 251. The plurality of first mounting holes 251 can be arranged at intervals in sequence along the extending direction of the reinforcing iron 25. The reinforcing rib on the door shell 23 can be provided with a plurality of first positioning holes 233. The plurality of first positioning holes 233 can be arranged in one-to-one correspondence with the plurality of first mounting holes 251. Therefore, the reinforcing iron 25 can be fixed by the one-to-one cooperation of the plurality of first mounting holes 251 and the plurality of first positioning holes 233, thereby improving the connection stability between the reinforcing iron 25 and the reinforcing rib of the door shell 23, and further enhancing the structural strength of the door shell 23 and the cabinet door 2.

[0211] In some embodiments, the reinforcing iron 25 can be arranged to extend along the side edge direction of the door shell 23. There can be a plurality of reinforcing irons 25. The plurality of reinforcing irons 25 are respectively arranged at a plurality of side edges of the door shell 23.

[0212] In some embodiments, there can be four reinforcing irons 25. The four reinforcing irons 25 are respectively arranged 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 can be adjusted as needed, and are not limited herein.

[0213] Please refer to Figure 26 to Figure 29 As shown, in some embodiments, the cabinet door 2 can include an observation window 26. The observation window 26 can be made of a transparent or semi-transparent material. The observation window 26 can be arranged between the door shell 23 and the door cover 24. The door shell 23 can be provided with a first observation opening 234. The door cover 24 can be provided with a second observation opening 242. The second observation opening 242 can be arranged opposite to the first observation opening 234. The observation window 26 can be arranged between the first observation opening 234 and the second observation opening 242. The observation window 26 can seal and isolate the space between the first observation opening 234 and the second observation opening 242. Users can observe the interior of the storage cavity 10 through the observation window 26, improving the convenience of user use.

[0214] In some embodiments, the observation window 26 may include an observation portion 261. The observation portion 261 may be disposed opposite to the first observation port 234 and the second observation port 242. A user can observe the interior of the storage cavity 10 through the observation portion 261.

[0215] In some embodiments, the observation portion 261 may be embedded in the second observation port 242 and may protrude 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.

[0216] Please refer to Figure 26 to Figure 29 As 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 periphery of 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.

[0217] In some embodiments, the clamping plate portion 262 may be detachably fixed to the reinforcing rib of the door shell 23. A second positioning hole 235 may be formed in the reinforcing rib of the door shell 23. A second mounting hole 263 may be formed in the clamping plate portion 262. The second mounting hole 263 may be arranged corresponding to the second positioning hole 235. The clamping plate portion 262 may be fixed to the second positioning hole 235 through the second mounting hole 263. For example, the clamping plate portion 262 may be detachably fixed to the reinforcing rib on the front wall of the door shell 23 by screws passing through the second mounting hole 263 and the second positioning hole 235. By using the clamping plate portion 262 in cooperation with the reinforcing rib, the structural strength of the observation window 26 can be improved.

[0218] In some embodiments, a plurality of second mounting holes 263 may be formed in the clamping plate portion 262. The plurality of second mounting holes 263 may be circumferentially spaced and arranged on the clamping plate portion 262. A plurality of second positioning holes 235 may be formed in the reinforcing rib of the door shell 23. The plurality of second positioning holes 235 may be arranged corresponding to the plurality of second mounting holes 263 one by one. Therefore, the observation window 26 can be fixedly matched through the one-to-one correspondence between the plurality of second mounting holes 263 and the plurality of second positioning holes 235, thereby improving the connection stability between the observation window 26 and the reinforcing rib of the door shell 23. Please refer to Figures 16 to 19 As shown, in some embodiments, a limiting ring 236 may protrude from the front wall of the door shell 23. The limiting ring 236 may be circumferentially arranged at intervals around the periphery of the first observation port 234. The outer contour shape of the limiting ring 236 may be the same as the outer contour shape of the observation window 26. The observation window 26 may be installed within the limiting ring 236. The limiting ring 236 may be circumferentially arranged around the outer periphery of the clamping plate portion 262.

[0219] 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 periphery of the first observation opening 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 hermetically seal the first observation opening 234, and thus the first observation opening 234 can be hermetically isolated from the second observation opening 242. The seal 27 can hermetically isolate the storage cavity 10 inside the cabinet body 1 from the outside of the cabinet door 2, improving the sealing performance of the vacuum cabinet.

[0220] Please refer to Figure 27 to Figure 29 As 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 periphery of the first observation opening 234. The contour shape of the seal 27 may be consistent with the contour shape of the sealing groove 237. The seal 27 may be installed at the sealing groove 237. The seal 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 hermetically seal the first observation opening 234.

[0221] 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 surface of the clamping plate portion 262. The positioning portion 271 may protrude and extend from the back surface of the clamping portion 272 towards the door shell 23. The positioning portion 271 may extend into and be arranged in the sealing groove 237. The clamping portion 272 may be encapsulated at the notch of the sealing groove 237. The sealing groove 237 can position the positioning portion 271, and thus position the seal 27, facilitating the installation of the seal 27 and preventing the seal 27 from being displaced and deviated.

[0222] Please refer to Figure 26 to Figure 29 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 at intervals vertically or horizontally between the door shell 23 and the door cover 24. A plurality of first observation openings 234 may be provided on the door shell 23. The plurality of first observation openings 234 may be arranged at intervals vertically or horizontally. A plurality of second observation openings 242 may be provided on the door cover 24. The plurality of second observation openings 242 and the plurality of first observation openings 234 may be arranged in one-to-one correspondence. The plurality of observation windows 26 may be respectively arranged between the plurality of first observation openings 234 and the plurality of second observation openings 242. A plurality of seals 27 may be provided. The plurality of seals 27 may be respectively clamped between the front wall of the door shell 23 and the rear wall of the clamping plate portion 262 of the corresponding observation window 26.

[0223] It should be noted that the number of the observation windows 26 can be adjusted as needed and is not limited herein. The positions and areas of the first observation opening 234 and the second observation opening 242 can be adjusted as needed and are not limited herein.

[0224] Fig.30 is Fig.26 a sectional view taken along the H-H direction in

[0225] Please refer to Fig.14 and Figures 26 to 30 As shown, in some embodiments, the locking tongue 21 can be inserted through the door shell 23. One end of the locking tongue 21 can extend into the space between the door shell 23 and the door cover 24. One end portion of the locking tongue 21 can be fixed between the reinforcing rib of the door shell 23 and the reinforcing iron 25. The other end of the locking tongue 21 can pass through the door shell 23 and protrude from the back surface of the door shell 23. The end portion of the locking tongue 21 is limited by the reinforcing rib of the door shell 23 and the reinforcing iron 25, improving the firmness of the installation of the locking tongue 21. When the cabinet door 2 is closed, the reinforcing iron 25 can abut against the locking tongue 21 to provide a supporting force for the locking tongue 21.

[0226] In some embodiments, a bending portion 212 can be provided at the end of the locking tongue 21 that extends into the cabinet door 2. The bending portion 212 can bend and extend towards one side of the locking tongue 21. The bending portion 212 can extend into the space between the door shell 23 and the door cover 24. The bending portion 212 can be clamped and fixed between the reinforcing rib of the door shell 23 and the reinforcing iron 25.

[0227] Fig.31 is Figure 8 a partial exploded structural schematic diagram in Fig.32 is Fig.31 a partial structural schematic diagram in Fig.33 is Fig.32 an exploded structural schematic diagram of Fig.34 is Fig.32 a side view of Fig.35 is Fig.33 a structural schematic diagram of the pressure relief valve in Fig.36 is Fig.35 a structural schematic diagram from another perspective in Fig.37 is Fig.34 a sectional view taken along the I-I direction in Fig.38 is Fig.34 a sectional view taken along the J-J direction in

[0228] Please refer to Figure 8 and Figures 31 to 38 As shown, in some embodiments, a pressure relief hole 104 can be formed in the side wall of the cabinet body 1. The pressure relief hole 104 can communicate with the storage cavity 10. External gas can enter the storage cavity 10 through the pressure relief hole 104, enabling the air pressure in the storage cavity 10 to be balanced with the outside of the cabinet body 1, so that the cabinet door 2 can be easily opened.

[0229] 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 outer side of the cabinet body 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 body 1, so that the air in the storage cavity 10 can be extracted by the vacuum assembly to form a vacuum environment. When it is necessary to open the cabinet door 2, the pressure relief hole 104 can be opened through the pressure relief valve 5, so that the external gas can enter the storage cavity 10 through the pressure relief hole 104, and then the cabinet door 2 can be easily opened.

[0230] In some embodiments, the pressure relief valve 5 may be rotatably provided on the outer side of the side wall of the cabinet body 1. When the pressure relief valve 5 rotates towards the direction close to the side wall of the cabinet body 1, the pressure relief valve 5 can tightly close the pressure relief hole 104. When the pressure relief valve 5 rotates towards the direction away from the side wall of the cabinet body 1, the pressure relief valve 5 can open the pressure relief hole 104.

[0231] Please refer to Figure 8 and Fig.31 As shown, in some embodiments, the pressure relief hole 104 may 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 may be provided on the outer side of the side wall of the cabinet body 1 away from the rotation axis of the cabinet door 2.

[0232] In some embodiments, the pressure relief hole 104 may be provided on the side wall of the cabinet body 1 close to the lock tongue 21. The pressure relief valve 5 may be provided on the outer side of the side wall of the cabinet body 1 close to the lock tongue 21.

[0233] Please refer to Figure 8 and Fig.31 As shown, in some embodiments, an installation cavity 30 may be provided between the side plate 3 and the side wall of the cabinet body 1. The installation cavity 30 may be formed between the side wall of the cabinet body 1 away from the rotation axis of the cabinet door 2 and the corresponding side plate 3. The pressure relief valve 5 may be provided in the installation cavity 30. When the pressure relief valve 5 opens the pressure relief hole 104, the pressure relief hole 104 may communicate the installation cavity 30 and the storage cavity 10 inside the cabinet body 1.

[0234] Please refer to Figures 31 to 38 As shown, in some embodiments, a first sealing surface 511 may be formed on the end surface of the pressure relief valve 5 facing the pressure relief hole 104. The first sealing surface 511 may be arranged opposite to the pressure relief hole 104. The area of the first sealing surface 511 may be larger than the area of the pressure relief hole 104. When the pressure relief valve 5 tightly closes the pressure relief hole 104, the first sealing surface 511 can seal the pressure relief hole 104.

[0235] In some embodiments, a second sealing surface 512 may be formed on the end face of the pressure relief valve 5 facing the pressure relief hole 104. The second sealing surface 512 may be arranged in a spaced manner around the circumferential side of the first sealing surface 511. When the pressure relief valve 5 presses against and closes the pressure relief hole 104, the second sealing surface 512 can be hermetically attached to the outer side wall of the cabinet body 1 on the circumferential side of the pressure relief hole 104, thereby forming a double sealing structure inside and outside at the pressure relief hole 104.

[0236] In some embodiments, a sealing ring groove 513 may be formed on the end face of the pressure relief valve 5 facing the pressure relief hole 104. The sealing ring groove 513 has an annular structure. The sealing ring groove 513 may be arranged around the center of the pressure relief valve 5. The first sealing surface 511 may be formed on the inner side of the sealing ring groove 513. The second sealing surface 512 may be formed on the outer circumferential side of the sealing ring groove 513.

[0237] Please refer to Figure 8 、 Figures 31 to 38 As shown, in some embodiments, the vacuum cabinet may include a connecting rod 6. The connecting rod 6 may be rotatably arranged on the side wall of the cabinet body 1. The connecting rod 6 may be rotatably arranged in the installation cavity 30. The connecting rod 6 may extend along the direction of its rotation axis. The connecting rod 6 may extend 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 arranged on the side of the pressure relief valve 5 close to the cabinet door 2. The connecting rod 6 may be arranged in the area between the pressure relief hole 104 and the cabinet door 2.

[0238] 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 at an interval.

[0239] When the connecting rod 6 rotates in one direction, the connecting rod 6 can drive the pressure relief valve 5 to rotate away from the side wall of the cabinet body 1, so that the first sealing surface 511 can be separated from the pressure relief hole 104, and the second sealing surface 512 can be separated from the outer side wall of the cabinet body 1, thereby enabling the pressure relief valve 5 to open the pressure relief hole 104. When the connecting rod 6 rotates in the opposite direction in the other direction, the connecting rod 6 can drive the pressure relief valve 5 to rotate towards the side wall of the cabinet body 1, thereby enabling the pressure relief valve 5 to press against and close the pressure relief hole 104.

[0240] Please refer to Figure 8 、 Figures 31 to 38As shown, in some embodiments, the pressure relief hole 104 may be spacedly provided on the side of the connecting rod 6 away from the cabinet door 2. The pressure relief valve 5 may be spacedly provided on the side of the connecting rod 6 away from the cabinet door 2. A connecting arm 61 may protrude on the side of the connecting rod 6 away from the cabinet door 2. The connecting arm 61 may extend in the direction of the pressure relief hole 104. The pressure relief valve 5 may be provided on the connecting arm 61. The pressure relief valve 5 may protrude 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 forward or backward through the connecting arm 61, so that the pressure relief valve 5 rotates towards or away from the side wall of the cabinet body 1, and further the pressure relief valve 5 can approach or move away from the pressure relief hole 104.

[0241] Please refer to Figures 31 to 38 As shown, in some embodiments, the pressure relief valve 5 may include a sealing convex portion 51. The sealing convex portion 51 may protrude on the side wall of the connecting arm 61 facing the pressure relief hole 104. The first sealing surface 511, the second sealing surface 512 and the sealing ring groove 513 may be respectively formed on the end surface of the sealing convex portion 51 facing the pressure relief hole 104.

[0242] In some embodiments, the pressure relief valve 5 may include a penetrating portion 52. The penetrating portion 52 may protrude on the end surface of the sealing convex portion 51 away from the pressure relief hole 104. A connecting hole 611 may be formed on the connecting arm 61. The penetrating portion 52 may penetrate and be fixed in the connecting hole 611.

[0243] In some embodiments, the pressure relief valve 5 may include a limiting convex portion 53. The limiting convex portion 53 may be provided on the side of the penetrating portion 52 away from the pressure relief hole 104. The outer diameter of the limiting convex portion 53 may be greater than the aperture of the connecting hole 611. The outer diameter of the limiting convex portion 53 may be greater than the diameter of the penetrating portion 52. The limiting convex portion 53 may protrude on the side wall of the connecting arm 61 away from the pressure relief hole 104. The limiting convex portion 53 may limit and fix the penetrating portion 52 and the sealing convex portion 51 on the connecting arm 61.

[0244] Please refer to Figure 8 、 Figures 31 to 38 As shown, in some embodiments, the vacuum cabinet may include a button assembly 7. The button assembly 7 may be provided on the 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 towards the side wall of the cabinet body 1 and may drive the pressure relief valve 5 to rotate away from the side wall of the cabinet body 1 through the connecting rod 6, so that the pressure relief valve 5 is separated from the pressure relief hole 104, and further the pressure relief hole 104 can be opened.

[0245] Please refer to Figures 6 to 8As shown, in some embodiments, a keyhole 33 may be formed in the side plate 3. The keyhole 33 may communicate with the installation cavity 30 between the side plate 3 and the side wall of the cabinet body 1. The key assembly 7 may be movably disposed through the keyhole 33. The inner end of the key assembly 7 may be disposed in the installation cavity 30 and may be connected to the connecting rod 6. The outer end of the key assembly 7 may be exposed outside the side plate 3 through the keyhole 33.

[0246] Please refer to Figure 8 、 Figures 31 to 38 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 installation cavity 30. The elastic member 8 may be used to drive the connecting rod 6 to rotate, drive the pressure relief valve 5 to rotate towards the direction close to the side wall of the cabinet body 1, so that the pressure relief valve 5 presses and closes the pressure relief hole 104. Therefore, when the user releases the key assembly 7, the connecting rod 6 and the key 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 key assembly 7, the connecting rod 6 can rotate reversely against the elastic force of the elastic member 8, drive the pressure relief valve 5 to rotate away from the side wall of the cabinet body 1, and further enable the pressure relief valve 5 to open the pressure relief hole 104.

[0247] In some embodiments, a key arm 62 may protrude from the side of the connecting rod 6 away from the pressure relief valve 5. The key arm 62 may extend towards the direction close to the cabinet door 2. The key assembly 7 may be disposed on the key arm 62. The key assembly 7 may be disposed on the side of the key arm 62 away from the cabinet body 1. Therefore, when the key assembly 7 is pressed by the user, the key assembly 7 can rotate towards the side close to the cabinet body 1 against the elastic force of the elastic member 8, and drive the pressure relief valve 5 to rotate away from the side of the cabinet body 1 through the key arm 62 and the connecting rod 6, and further enable the pressure relief valve 5 to open the pressure relief hole 104.

[0248] Fig.39 is Fig.32 a schematic structural view of the key assembly 7 in Fig.40 is Fig.39 an exploded structural view of Fig.41 is Fig.40 a structural view from another perspective.

[0249] Please refer to Figure 8 、 Figures 31 to 41As shown, in some embodiments, the button assembly 7 may include a fixed button 71. The fixed button 71 may be provided at the inner end of the button assembly 7. The fixed button 71 may be provided in the installation cavity 30. The fixed button 71 may be fixed to the side of the link 6 away from the pressure relief valve 5. The fixed button 71 may be fixed to the side of the button arm 62 away from the cabinet body 1. The fixed button 71 can rotate synchronously with the link 6. Therefore, when the button assembly 7 is pressed by the user, the fixed button 71 can drive the button arm 62 to rotate synchronously toward the side close to the cabinet body 1.

[0250] In some embodiments, the button assembly 7 may include a pressing button 72. The pressing button 72 may be provided at the outer end of the button assembly 7. The pressing button 72 may be movably passed through the button hole 33. The pressing button 72 may be exposed outside the side plate 3 for the user to press. The pressing button 72 may be rotatably connected to the fixed button 71. The pressing button 72 may be provided on the side of the fixed button 71 away from the cabinet body 1. The pressing button 72 may be provided on the side of the fixed button 71 away from the button arm 62. Therefore, when the pressing button 72 is pressed, the pressing button 72 can move toward the direction close to the cabinet body 1 through the button hole 33, driving the fixed button 71 to move toward the direction close to the cabinet body 1, so as to drive the link 6 to rotate synchronously against the elastic force of the elastic member 8 by the fixed button 71, and further drive the pressure relief valve 5 to rotate away from the pressure relief hole 104 through the link 6, opening the pressure relief hole 104.

[0251] It should be noted that when the pressing button 72 is pressed, the pressing button 72 can rotate relative to the fixed button 71, the pressing button 72 can move linearly following the fixed button 71, and the pressing button 72 can slide in the button hole 33. Converting the linear motion of the pressing button 72 into the rotational motion of the fixed button 71 can prevent the button assembly 7 from getting stuck and avoid the situation that the button assembly 7 cannot be pressed, effectively improving the user experience.

[0252] Please refer to Figures 32 to 41 As shown, in some embodiments, a rotating shaft portion 711 may be respectively convexly provided on opposite sides of the fixed button 71. The two rotating shaft portions 711 may be coaxially arranged. The two rotating shaft portions 711 may be respectively provided at opposite ends of the fixed button 71. An extension arm 721 may be respectively convexly provided on opposite sides of the pressing button 72. The extension arm 721 may extend toward the direction of the cabinet body 1. The two extension arms 721 are respectively rotatably connected to a rotating shaft portion 711, so that the pressing button 72 can be rotatably connected to the side of the fixed button 71 away from the cabinet body 1. When the pressing button 72 is pressed, the pressing button 72 can rotate relative to the fixed button 71 with the rotating shaft portion 711 as the axis.

[0253] In some embodiments, the axial direction of the rotating shaft portion 711 and the extending direction of the rotation axis of the link 6 may be arranged in parallel at intervals, so that the linear motion of the pressing button 72 and the rotational motion of the fixed button 71 can be smoother.

[0254] Please refer to Figures 37 to 41 As shown, in some embodiments, a rotation groove 722 is formed at the end of the extension arm 721 facing the cabinet body 1. The aperture diameter of the rotation groove 722 may be the same as the diameter of the rotating shaft portion 711. The width of the notch of the rotation groove 722 may be slightly smaller than the diameter of the rotating shaft portion 711, so that the rotating shaft portion 711 can be snapped into the rotation groove 722 through the notch of the rotation groove 722, which can prevent the extension arm 721 from detaching from the rotating shaft portion 711. The rotating shaft portion 711 may be rotatably connected in the rotation groove 722, so that the pressing key 72 can rotate relative to the fixed key 71.

[0255] In some embodiments, the fixed key 71 may be detachably provided on the key pressing arm 62. The fixed key 71 may be detachably provided on the side of the key pressing arm 62 away from the cabinet body 1.

[0256] Please refer to Figures 31 to 41 As shown, in some embodiments, a rotation limiting post 712 may protrude from the side of the fixed key 71 away from the key pressing arm 62. A hole groove (not labeled in the figure) may be provided in the rotation limiting post 712. A fixing hole 621 is formed on the key pressing arm 62. The fixing hole 621 may be directly opposite and communicated with the hole groove. The fixed key 71 can be detachably fixed on the key pressing arm 62 by screws passing through the fixing hole 621 and the hole groove, improving the connection stability between the fixed key 71 and the key pressing arm 62.

[0257] In some embodiments, a limiting cavity 723 may be recessed on the side of the pressing key 72 facing the fixed key 71. The rotation limiting post 712 may be movably received in the limiting cavity 723. When the pressing key 72 is pressed and rotates relative to the fixed key 71, the rotation limiting post 712 can rotate in the limiting cavity 723, which can limit the angular range of the rotation of the pressing key 72 relative to the fixed key 71 and prevent the pressing key 72 from detaching from the fixed key 71.

[0258] In some embodiments, a limiting rib 724 protrudes from the circumferential side wall of the pressing key 72. The limiting rib 724 may be annular, and the limiting rib 724 may be circumferentially arranged around the circumferential side wall of the pressing key 72. When the pressing key 72 moves outward from the key pressing hole 33 towards the outside of the side plate 3, the limiting rib 724 can abut against the inner side wall of the side plate 3 to limit the pressing key 72 in the key pressing hole 33 and prevent the pressing key 72 from disengaging from the key pressing hole 33.

[0259] Fig.42 is Fig.32 The enlarged structural schematic diagram of the K region in Fig.43 is Fig.42 The exploded structural schematic diagram of Fig.44 is Fig.43 The structural schematic diagram of the elastic member 8 in Fig.45 is Fig.42 Schematic diagram of the structure where the middle locking part 63 is engaged with the lock tongue 21. Fig.46 is Fig.45 a schematic exploded view of

[0260] Please refer to Figures 31 to 46 As shown, in some embodiments, a locking part 63 may protrude from one side of the connecting rod 6 facing the cabinet door 2. The locking part 63 may be arranged to extend in the direction of the connecting rod 6 facing the cabinet door 2. The locking part 63 may be arranged opposite to the lock tongue 21 on the cabinet door 2. The locking part 63 and the pressure relief valve 5 may be located on opposite sides of the connecting rod 6. The locking part 63 may be used to engage or disengage with the lock tongue 21.

[0261] When the connecting rod 6 drives the locking part 63 to rotate away from the cabinet body 1, the connecting rod 6 can drive the pressure relief valve 5 to rotate towards the cabinet body 1, so that the pressure relief valve 5 can be pressed to close the pressure relief hole 104. At this time, the locking part 63 can be engaged with the lock tongue 21, so that the locking part 63 can be engaged on the side of the lock tongue 21 close to the cabinet body 1, thereby locking the cabinet door 2 to the cabinet body 1.

[0262] When the connecting rod 6 drives the locking part 63 to rotate in the opposite direction towards the cabinet body 1, the connecting rod 6 can drive the pressure relief valve 5 to rotate away from the cabinet body 1, so that the pressure relief valve 5 can move away from and open the pressure relief hole 104, allowing gas to enter the storage cavity 10, thereby balancing the internal and external air pressures of the storage cavity 10. At this time, the locking part 63 can be separated from the lock tongue 21, thereby unlocking the cabinet door 2, enabling the cabinet door 2 to be easily opened.

[0263] In some embodiments, the elastic member 8 may protrude from the side wall of the locking part 63 close to the cabinet body 1. One end of the elastic member 8 may be connected to the locking part 63. The other end of the elastic member 8 may abut against the side wall of the cabinet body 1. The elastic member 8 can drive the connecting rod 6 to rotate, driving the locking part 63 to rotate towards the side away from the cabinet body 1, so that the locking part 63 can be engaged with the lock tongue 21, and the locking part 63 can be engaged on the side of the lock tongue 21 close to the cabinet body 1, thereby locking the cabinet door 2. At the same time, the elastic member 8 can drive the connecting rod 6 to drive the pressure relief valve 5 to rotate towards the side close to the cabinet body 1, so that the pressure relief valve 5 presses against and closes the pressure relief hole 104.

[0264] 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 towards the side close to the cabinet body 1, which can drive the connecting rod 6 to rotate in the opposite direction against the elastic force of the elastic member 8, and can drive the connecting rod 6 to drive the locking part 63 to rotate towards 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.

[0265] It should be noted that in some other embodiments, the elastic member 8 may not be provided on the locking portion 63. The elastic member 8 may also be provided at other positions of the connecting rod 6.

[0266] Please refer to Figure 42 to Figure 46 As shown, in some embodiments, a locking opening 211 is formed on the locking 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 locking opening 211 of the locking 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 reversely against 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 locking opening 211 of the locking tongue 21, thereby unlocking the cabinet door 2.

[0267] It should be noted that in some other embodiments, the locking opening 211 may also be formed on the locking portion 63. At this time, 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 opening 211 of the locking portion 63 is engaged with the locking opening 211 of the locking 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 reversely against 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 opening 211 of the locking portion 63 can be separated from the locking tongue 21, thereby unlocking the cabinet door 2.

[0268] Please refer to Fig.31 、 Fig.45 and Fig.46 As shown, in some embodiments, when the locking portion 63 is engaged with the locking opening 211 of the locking tongue 21, the cabinet door 2 is locked, and the inner side wall of the cabinet door 2 can abut against the sealing ring 11, thereby sealing 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 press the elastic wall 1121. When the locking portion 63 is separated from the locking opening 211 of the locking 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 to drive the cabinet door 2 to open automatically.

[0269] Please refer to Figure 42 to Figure 46 As shown, in some embodiments, a locking block 631 protrudes from 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 at 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.

[0270] In some embodiments, the locking block 631 may be provided with an inclined extrusion surface 632. In the direction from the cabinet body 1 towards the cabinet door 2, the extrusion surface 632 may be inclined and extend towards the direction close to the cabinet body 1. When the cabinet door 2 is closed, the locking tongue 21 can first abut against the extrusion surface 632 of the locking block 631, so that the locking portion 63 can first rotate towards the direction close to the side wall of the cabinet body 1. When the locking block 631 is located in the locking opening 211, under the action of the elastic member 8, the elastic member 8 can drive the locking portion 63 to rotate towards the side wall of the cabinet body 1, and the locking block 631 can be clamped and fixed in the locking opening 211.

[0271] In some embodiments, the locking portion 63 has a plate-like structure. The plate-like locking portion 63 can be arranged facing the side wall of the cabinet body 1. The elastic member 8 can protrude from the side of the locking portion 63 close to the cabinet body 1, so that there is a gap between the locking portion 63 and the side wall of the cabinet body 1.

[0272] Please refer to Figures 32 to 46 As shown, in some embodiments, a connecting rib 64 may protrude from the side of the connecting rod 6 close to the cabinet door 2. The connecting rib 64 can extend in a long strip shape. The extending direction of the connecting rib 64 can be the same as the extending direction of the connecting rod 6. The locking portion 63 can extend from the connecting rib 64 towards the cabinet door 2. The connecting rib 64 can improve the connection strength between the connecting rod 6 and the locking portion 63. The key arm 62 can extend from the connecting rib 64 towards the cabinet door 2. The connecting rib 64 can improve the connection strength between the connecting rod 6 and the key arm 62.

[0273] In some embodiments, there may be at least two locking portions 63. The two locking portions 63 are arranged at intervals along the extending direction of the connecting rod 6. The key assembly 7 can be arranged in the area between the two locking portions 63. The two locking portions 63 can be respectively arranged 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 portions 63 can be respectively clamped with the two locking tongues 21 in one-to-one correspondence. When the key assembly 7 is pressed, the connecting rod 6 can rotate reversely against the elastic force of the elastic member 8, and the two locking portions 63 can be respectively separated from the two locking tongues 21 in one-to-one correspondence.

[0274] It should be noted that the number of the locking portions 63 and the locking tongues 21 can be adjusted as needed and is not limited herein. In addition, when multiple locking portions 63 and multiple locking tongues 21 are clamped, the locking force of the cabinet door 2 can be improved, and the sealing performance of the sealing ring 11 can be improved.

[0275] Please refer to Figures 43 to 45As shown, in some embodiments, the elastic member 8 may include an integrally connected fixed sleeve 81 and elastic arms 82. The fixed sleeve 81 may be sleeved on the locking portion 63. The elastic arms 82 extend from the fixed sleeve 81 toward the side wall of the cabinet body 1. The elastic arms 82 can be used to abut against the side wall of the cabinet body 1. When the elastic arms 82 are compressed, the elastic arms 82 can have an elastic force.

[0276] In some embodiments, the fixed sleeve 81 may be detachably sleeved on the locking portion 63. The fixed sleeve 81 can be sleeved on the locking portion 63 at the end of the locking portion 63 away from the connecting rod 6, thereby facilitating the installation of the elastic member 8.

[0277] In some embodiments, the fixed sleeve 81 may include a bottom clamping plate 811. When the fixed sleeve 81 can be sleeved on the locking portion 63, the bottom clamping plate 811 can be clamped on the side wall of the locking portion 63 close to the cabinet body 1.

[0278] In some embodiments, the fixed sleeve 81 may include a first side clamping plate 812 and a second side clamping plate 813. The first side clamping plate 812 and the second side clamping plate 813 may be respectively connected to opposite sides of the bottom clamping plate 811. When the fixed sleeve 81 can be sleeved on the locking portion 63, the first side clamping plate 812 and the second side clamping plate 813 can be respectively clamped on opposite side walls of the locking portion 63.

[0279] In some embodiments, the fixed sleeve 81 may include a first top clamping plate 814. The first top clamping plate 814 may extend from the first side clamping plate 812 toward the second side clamping plate 813. The first top clamping plate 814 can be clamped on the side wall of the locking portion 63 away from the cabinet body 1, so that the fixed sleeve 81 can be clamped and fixed on the locking portion 63.

[0280] In some embodiments, the fixed sleeve 81 may include a second top clamping plate 815. The second top clamping plate 815 may extend from the second side clamping plate 813 toward the first side clamping plate 812. The second top clamping plate 815 can be clamped on the side wall of the locking portion 63 away from the cabinet body 1, so that the fixed sleeve 81 can be clamped and fixed on the locking portion 63.

[0281] Please refer to Figures 43 to 46 As shown, in some embodiments, a gap area (not marked in the figure) may be formed between the first top clamping plate 814 and the second top clamping plate 815. When the fixed sleeve 81 is sleeved on the locking portion 63, the lock block 631 can pass through the gap area, so that the fixed sleeve 81 can be smoothly sleeved on the locking portion 63.

[0282] In some embodiments, a limiting groove 633 may be recessed on the side wall of the locking portion 63 far from the cabinet body 1. A step portion 634 may protrude on the side of the limiting groove 633 close to the cabinet door 2. The lock block 631 may protrude and be formed on the step portion 634. The fixing sleeve 81 may be sleeved and fixed at the limiting groove 633 of the locking portion 63.

[0283] In some embodiments, a first abutting portion 8141 and a first clamping arm 8142 may respectively protrude on the side of the first top clamping plate 814 facing the step portion 634. When the fixing sleeve 81 is sleeved on the locking portion 63, the first abutting portion 8141 may abut in the limiting groove 633, and the end of the first abutting portion 8141 may abut against the side wall of the step portion 634 to prevent the fixing sleeve 81 from detaching from the locking portion 63. The first clamping arm 8142 clamps on the step portion 634 to fix the fixing sleeve 81 on the locking portion 63.

[0284] In some embodiments, a second abutting portion 8151 and a second clamping arm 8152 may respectively protrude on the side of the second top clamping plate 815 facing the step portion 634. When the fixing sleeve 81 is sleeved on the locking portion 63, the second abutting portion 8151 may abut in the limiting groove 633, and the end of the second abutting portion 8151 may abut against the side wall of the step portion 634 to prevent the fixing sleeve 81 from detaching from the locking portion 63. The second clamping arm 8152 clamps on the step portion 634 to fix the fixing sleeve 81 on the locking portion 63.

[0285] Please refer to Figure 8 and Figure 18 As shown, in some embodiments, a support portion 105 protrudes on the side wall of the cabinet body 1 facing the installation cavity 30. The support portion 105 may extend from the side wall of the cabinet body 1 towards the direction of the connecting rod 6. The end of the connecting rod 6 may be rotatably clamped between the support portion 105 and the inner side wall of the side plate 3, thereby facilitating the fixing of the connecting rod 6.

[0286] In some embodiments, there may be two support portions 105. The two support portions 105 may respectively rotatably clamp the two end portions of the connecting rod 6 between the support portion 105 and the inner side wall of the side plate 3.

[0287] Figure 47 is Figure 8 the side view of the middle side plate 3. Figure 48 is Figure 47 the structural schematic diagram from another perspective. Figure 49 is Figure 48 the enlarged structural schematic diagram of the L area in Figure 50 is Figure 48 the enlarged structural schematic diagram of the M area in Figure 51 is Figure 47 the cross-sectional view in the N-N direction of

[0288] Please refer to Figures 47 to 51 As shown, in some embodiments, a locking groove 34 may be recessed in the inner sidewall of the side plate 3. The end of the connecting rod 6 may be rotatably clamped in the locking groove 34. Thus, the connecting rod 6 can be pre-assembled on the side plate 3 first, and then the connecting rod 6 and the side plate 3 can be installed on the sidewall of the cabinet 1 together.

[0289] In some embodiments, the supporting portion 105 may be arranged opposite to the locking groove 34. When the side plate 3 is installed on the sidewall of the cabinet 1, the supporting portion 105 can extend into the notch of the locking groove 34, and thus the end of the connecting rod 6 can be rotatably clamped between the locking groove 34 and the supporting portion 105.

[0290] In some embodiments, there may be two locking grooves 34. The two locking grooves 34 may be arranged at intervals in the vertical direction. The two ends of the connecting rod 6 may be respectively rotatably clamped in one locking groove 34. The two supporting portions 105 may be arranged corresponding to the two locking grooves 34 one by one, and the two ends of the connecting rod 6 may be respectively clamped between one locking groove 34 and one supporting portion 105.

[0291] In some embodiments, a first locking arm 341 and a second locking arm 342 arranged opposite to each other at intervals may protrude from the inner sidewall of the side plate 3. The locking groove 34 may be formed on the sidewall between the first locking arm 341 and the second locking arm 342. The notch of the locking groove 34 may be formed between the ends of the first locking arm 341 and the second locking arm 342. The ends of the connecting rod 6 can respectively press the ends of the first locking arm 341 and the second locking arm 342, so that the notch of the locking groove 34 elastically opens, and thus the end of the connecting rod 6 can be clamped in the locking groove 34.

[0292] In some embodiments, there may be two sets of the first locking arm 341 and the second locking arm 342. The two sets of the first locking arm 341 and the second locking arm 342 may be arranged at intervals at the two ends of the connecting rod 6. The two sets of the first locking arm 341 and the second locking arm 342 may form two locking grooves 34. One end of the connecting rod 6 may be rotatably clamped in the locking groove 34 between one set of the first locking arm 341 and the second locking arm 342. The other end of the connecting rod 6 may be rotatably clamped in the locking groove 34 between the other set of the first locking arm 341 and the second locking arm 342.

[0293] In some embodiments, the first locking arm 341 may be connected to the reinforcing rib on the inner sidewall of the side plate 3 to enhance the structural strength of the first locking arm 341. The second locking arm 342 may be connected to the reinforcing rib on the inner sidewall of the side plate 3 to enhance the structural strength of the second locking arm 342.

[0294] Please refer to Figures 47 to 51As shown, in some embodiments, first reinforcing plates 343 and second reinforcing plates 344 that are arranged opposite to each other with a gap may protrude from the inner sidewall of the side plate 3. The first locking arm 341 may be connected to the first reinforcing plate 343. The first locking arm 341 may be disposed on the side of the first reinforcing plate 343 facing the connecting rod 6. The first reinforcing plate 343 may improve the structural strength of the first locking arm 341. The second locking arm 342 may be connected to the second reinforcing plate 344. The second locking arm 342 may be disposed on the side of the second reinforcing plate 344 facing the connecting rod 6. The second reinforcing plate 344 may improve the structural strength of the second locking arm 342.

[0295] In some embodiments, when the end of the connecting rod 6 is clamped in the locking groove 34, the first reinforcing plate 343 and the second reinforcing plate 344 can be axially limited at one end of the connecting rod 6.

[0296] In some embodiments, there may be two sets of the first reinforcing plates 343 and the second reinforcing plates 344. The two sets of the first reinforcing plates 343 and the second reinforcing plates 344 may be arranged at both ends of the connecting rod 6 at intervals. One set of the first reinforcing plates 343 and the second reinforcing plates 344 may be used for axially limiting one end of the connecting rod 6. The other set of the first reinforcing plates 343 and the second reinforcing plates 344 may be used for axially limiting the other end of the connecting rod 6.

[0297] In some embodiments, the first reinforcing plate 343 may be connected to the reinforcing ribs on the inner sidewall of the side plate 3 to enhance the structural strength of the first reinforcing plate 343. The second reinforcing plate 344 may be connected to the reinforcing ribs on the inner sidewall of the side plate 3 to enhance the structural strength of the second reinforcing plate 344.

[0298] Figure 52 is Figure 5 a partial structural schematic diagram of. Figure 53 is Figure 52 an exploded structural schematic diagram of. Figure 54 is Figure 52 a cross-sectional view of.

[0299] Please refer to Figure 5 、 Figures 52 to 54 As shown, in some embodiments, a transfer seat 205 may be provided on the inner sidewall of the cabinet door 200. A transfer cavity 2050 may be provided on the sidewall of the transfer seat 205 facing the cabinet body 1. When the vacuum cabinet is provided on the inner sidewall of the cabinet door 200, the transfer seat 205 may be provided on the back of the cabinet body 1, the transfer cavity 2050 may be provided on the back of the cabinet body 1, and the vacuum connection pipe 103 on the back of the cabinet body 1 may be arranged in the transfer cavity 2050.

[0300] In some embodiments, a connection adapter 2051 may be provided in the adapter socket 205. One end of the connection adapter 2051 may be exposed outside the outer wall of the adapter socket 205. The vacuum pumping pipeline 302 may be connected to the exposed end of the connection adapter 2051. The other end of the connection adapter 2051 may extend into the adapter cavity 2050. The vacuum connection pipe 103 on the back of the cabinet body 1 may be connected to the end of the connection adapter 2051 extending into the adapter cavity 2050. The vacuum pump 301 may extract the air in the storage cavity 10 through the vacuum pumping pipeline 302, the connection adapter 2051, and the vacuum connection pipe 103, so that a vacuum environment may be formed in the storage cavity 10.

[0301] In some embodiments, a transfer pipe 206 may be provided in the adapter socket 205. The transfer pipe 206 may be disposed in the adapter cavity 2050. One end of the transfer pipe 206 may be detachably connected to the end of the connection adapter 2051 extending into the adapter cavity 2050. The other end of the transfer pipe 206 may be detachably connected to the vacuum connection pipe 103 on the back of the cabinet body 1. Therefore, the vacuum pump 301 may extract the air in the storage cavity 10 through the vacuum pumping pipeline 302, the connection adapter 2051, the transfer pipe 206, and the vacuum connection pipe 103.

[0302] In some embodiments, the transfer pipe 206 may include a vertical pipe portion 2061 and a horizontal pipe portion 2062. The vertical pipe portion 2061 may be arranged vertically. The horizontal pipe portion 2062 may be arranged to extend horizontally. The vertical pipe portion 2061 and the horizontal pipe portion 2062 may be arranged in an L-shaped structure. The bottom end of the vertical pipe portion 2061 may be bent and connected to the horizontal pipe portion 2062. The top end of the vertical pipe portion 2061 may be detachably connected to the end of the connection adapter 2051 extending into the adapter cavity 2050. The end of the horizontal pipe portion 2062 away from the vertical pipe portion 2061 may be detachably connected to the vacuum connection pipe 103 on the back of the cabinet body 1.

[0303] In some embodiments, the connection adapter 2051 may be arranged to extend vertically. The connection adapter 2051 may be in the top area of the adapter socket 205. The connection adapter 2051 may be in the top area of the adapter cavity 2050. The top end of the connection adapter 2051 may be exposed outside the top surface of the adapter socket 205. The top end of the connection adapter 2051 may be connected to the vacuum pumping pipeline 302. The bottom end of the connection adapter 2051 may extend into the adapter cavity 2050. The bottom end of the connection adapter 2051 may be detachably connected to the top end of the vertical pipe portion 2061.

[0304] While the present utility model has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present utility model can be embodied in many forms without departing from the spirit or essence of the utility model, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A vacuum cabinet, characterized in that, Comprising: A cabinet body, within which a storage cavity is formed, and the storage cavity is used for evacuating air; a pressure relief hole communicating with the storage cavity is formed on the side wall of the cabinet body; A cabinet door, rotatably connected to the cabinet body, and the cabinet door is used to open or close the storage cavity; A connecting rod, rotatably arranged on the side wall of the cabinet body; A pressure relief valve, arranged on one side of the connecting rod; the pressure relief valve is used to open or close the pressure relief hole; A button assembly, arranged on the side of the connecting rod away from the pressure relief valve; An elastic member, connected to the connecting rod, and the elastic member is used to drive the connecting rod to rotate so that the pressure relief valve tightly closes the pressure relief hole; When the button assembly is pressed, the connecting rod can rotate reversely against the elastic force of the elastic member, so that the pressure relief valve can open the pressure relief hole.

2. The vacuum cabinet according to claim 1, characterized in that, The button assembly includes a fixed button and a pressing button; the fixed button is fixed on the side of the connecting rod away from the pressure relief valve, and the fixed button can rotate synchronously with the connecting rod; The pressing button is rotatably connected to the fixed button and is arranged on the side of the fixed button away from the cabinet body; When the pressing button is pressed, the pressing button can move towards the direction close to the cabinet body to drive the fixed button to drive the connecting rod to rotate synchronously against the elastic force of the elastic member, and make the pressing button rotate relative to the fixed button.

3. The vacuum cabinet according to claim 2, characterized in that, A rotating shaft portion is respectively convexly provided on the opposite sides of the fixed button, and the two rotating shaft portions are coaxially arranged; An extension arm is respectively convexly provided on the opposite sides of the pressing button, the extension arm extends towards the direction of the cabinet body, and the two extension arms are respectively rotatably connected to one rotating shaft portion.

4. The vacuum cabinet according to claim 3, characterized in that, A rotating groove is formed at the end of the extension arm facing the cabinet body; The rotating shaft portion can be inserted into and rotatably connected in the rotating groove.

5. The vacuum cabinet according to claim 1, characterized in that, The connecting rod extends along its rotation axis direction, and the rotation axis of the connecting rod is arranged in parallel and spaced from the rotation axis of the cabinet door; The pressure relief holes are spacedly arranged on the side of the connecting rod away from the cabinet door; the pressure relief valve is arranged on the side of the connecting rod away from the cabinet door, and the button assembly is arranged on the side of the connecting rod close to the cabinet door.

6. The vacuum cabinet according to claim 5, wherein, A connecting arm is convexly provided on the side of the connecting rod away from the cabinet door, and the connecting arm extends towards the direction of the pressure relief hole; The pressure relief valve is arranged on the connecting arm and is convexly provided on the side wall of the connecting arm facing the pressure relief hole.

7. The vacuum cabinet according to claim 5, wherein, A button arm is convexly provided on the side of the connecting rod away from the pressure relief valve, and the button arm extends towards the direction of the cabinet door; The button assembly is detachably arranged on the button arm.

8. The vacuum cabinet according to claim 7, wherein A locking portion is provided on the side of the connecting rod facing the cabinet door; a lock tongue is provided on the side of the cabinet door away from its rotation axis; The elastic member is arranged on the side wall of the locking portion close to the cabinet body; When the cabinet door is closed, the locking portion can be engaged with the lock tongue to lock the cabinet door; When the button assembly is pressed, the connecting rod can rotate reversely against the elastic force of the elastic member, so that the locking portion can be separated from the lock tongue to unlock the cabinet door.

9. The vacuum cabinet according to claim 1, characterized in that, A first sealing surface and a second sealing surface spaced apart and circumferentially arranged around the first sealing surface are formed on the end surface of the pressure relief valve facing the pressure relief hole; When the pressure relief valve tightly closes the pressure relief hole, the first sealing surface can seal the pressure relief hole, and the second sealing surface can be hermetically attached to the outer side wall of the cabinet body on the periphery of the pressure relief hole.

10. The vacuum cabinet according to claim 9, characterized in that, A sealing ring groove is formed on the end surface of the pressure relief valve facing the pressure relief hole, and the sealing ring groove has an annular structure; the first sealing surface is formed on the inner side of the sealing ring groove, and the second sealing surface is formed on the outer peripheral side of the sealing ring groove.

11. A refrigerator, characterized in that, Comprising: A box body that forms the outer shell of the refrigerator, and a storage chamber is provided inside the box body; A box door provided on the box body, and the box door is used to open or close the storage chamber; A vacuum cabinet provided on the inner side of the box door, and a storage cavity is formed inside the vacuum cabinet; the vacuum cabinet adopts the vacuum cabinet according to any one of claims 1-9; when the box door is closed, the vacuum cabinet can be arranged inside the storage chamber; A vacuum pumping assembly provided inside the box door, the vacuum pumping assembly is connected to the storage cavity, and the vacuum pumping assembly is used to pump the storage cavity to a vacuum.

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