A vacuumable storage cabinet

Abstract

A vacuum-sealed storage cabinet includes an outer shell, an inner liner housed within the outer shell, and a sliding door that opens and closes on the front side of the inner liner. A vacuum device is located on the rear side of the outer shell for creating a vacuum inside the inner liner. The air inlet of the vacuum device is connected to the interior of the inner liner, and the air outlet is connected to the outside. A vent valve is located on the door; when the vent valve is open, the interior of the inner liner is connected to the outside. This storage cabinet, by using a vacuum device on the rear side of the outer shell with its air inlet connected to the interior of the inner liner and its air outlet connected to the outside, extracts air from the interior of the inner liner and discharges it outside the cabinet, creating a vacuum environment inside the inner liner. This inhibits oxidation, mold, or moisture absorption of items, allowing for long-term storage. Furthermore, the vent valve on the door, when opened, connects the interior of the inner liner to the outside, balancing the internal and external air pressures and allowing the door to be opened without resistance.

Description

Technical Field

[0001] This utility model relates to the field of storage cabinet technology, and in particular to a vacuum-capable storage cabinet. Background Technology

[0002] Chinese Patent Document No. CN206150846U, published on May 10, 2017, discloses an expandable storage cabinet, comprising a cabinet body, a sliding rod on the front side of the cabinet body, a door on the front of the cabinet body, a sliding groove on the lower surface of the door, the sliding groove being slidably connected to the sliding rod, a handle on the right side of the cabinet body, a storage panel in the inner cavity of the cabinet body, a support plate groove in the inner cavity of the storage panel, dovetail grooves on both the front and rear sides of the support plate groove, a support plate in the inner side of the support plate groove, and the support plate being slidably connected to the support plate groove. This storage cabinet lacks a vacuum function, and items stored inside for extended periods may mold, making it unsuitable for long-term storage. Furthermore, some storage cabinets on the market with vacuum functions create negative pressure inside the inner liner, resulting in significant resistance when opening the cabinet door, making it difficult to open.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum-sealed storage cabinet that is simple in structure, has good preservation effect, is easy to use, provides a good user experience, and is highly practical, so as to overcome the shortcomings of the existing technology.

[0005] A vacuum-sealed locker designed for this purpose includes an outer shell, an inner liner disposed within the outer shell, and a door that slides open and closes on the front side of the inner liner. The locker is characterized in that: a vacuum device for evacuating the interior of the inner liner is provided on the rear side of the outer shell; the air inlet of the vacuum device is connected to the interior of the inner liner, and the air outlet of the vacuum device is connected to the outside; and a vent valve is provided on the door, which connects the interior of the inner liner to the outside when the vent valve is opened.

[0006] The vacuum device includes a vacuum pump for evacuating air from the inside of the inner liner and a solenoid valve for opening or cutting off the air passage. The inner liner is provided with an air extraction port. The air inlet of the solenoid valve is connected to the air extraction port, the air outlet of the solenoid valve is connected to the air inlet of the vacuum pump, and the air outlet of the vacuum pump is connected to the outside.

[0007] An electronic control board is installed inside the outer shell, and a vent is installed on the inner liner. The electronic control board is equipped with a pressure sensor for detecting the air pressure inside the inner liner. The pressure sensor is connected to the vent through a vent pipe. The electronic control board is electrically connected to the pressure sensor, the vacuum pump, and the solenoid valve. The pressure sensor feeds back the detected air pressure to the electronic control board, and the electronic control board controls the operation of the vacuum pump and the solenoid valve according to the detected air pressure.

[0008] Several reinforcing ribs are provided on the periphery of the inner liner, with the ribs protruding and recessed on the inner liner.

[0009] A filling area is provided between the outer shell and the inner liner, and the filling area is filled with a foam layer.

[0010] Several reinforcing plates are provided on the outer periphery of the inner liner. The reinforcing plates are embedded in the foam layer and are formed by connecting several bent parts together.

[0011] The vent valve includes a valve body, a valve stem, a seal, and a resilient element. The valve body has an air inlet. The valve stem is movably mounted on the valve body. The seal is fitted onto the valve stem. The resilient element is positioned between the valve stem and the valve body. Under the elastic force of the resilient element, the valve stem drives the seal to close the air inlet, thereby closing the vent valve. Under the action of external force, the valve stem drives the seal to open the air inlet, thereby opening the vent valve. The interior of the liner is connected to the outside through the air inlet.

[0012] The front side of the inner liner is provided with an opening that connects to the inside of the inner liner and a sealing strip. The sealing strip is arranged around the outer periphery of the opening and has a sealing part that protrudes from the front side of the inner liner. When the door slides to close, it abuts against the sealing part to isolate the inside of the inner liner from the outside through the sealing part.

[0013] An electrical chamber and a cover are located on the rear side of the outer casing. The vacuum pump, solenoid valve, and electrical control board are located in the electrical chamber. The cover closes to the rear opening of the electrical chamber and has several exhaust holes. The exhaust end of the vacuum pump is connected to the electrical chamber, and the electrical chamber is connected to the outside through the exhaust holes.

[0014] The inlet of the solenoid valve is connected to the suction port through the inlet pipe, and the outlet of the solenoid valve is connected to the inlet of the vacuum pump through the outlet pipe.

[0015] This utility model of a storage cabinet features a vacuum device installed on the rear side of the outer shell. The air inlet of the vacuum device is connected to the inside of the inner liner, and the air outlet is connected to the outside. The vacuum device extracts air from the inside of the inner liner and discharges it outside the storage cabinet, creating a vacuum environment inside the inner liner. This inhibits the oxidation, mold, or moisture absorption of items, allowing them to be stored in the cabinet for a long time. In addition, an air release valve is installed on the door. When the air release valve is opened, the inside of the inner liner is connected to the outside, allowing outside air to enter the inner liner and balance the internal and external air pressure. This allows the door to be opened without resistance, preventing the formation of negative pressure inside the inner liner that would make the door difficult to open. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the storage cabinet in one embodiment of the present invention.

[0017] Figure 2This is an exploded view of the storage cabinet in one embodiment of the present invention.

[0018] Figure 3 This is a partial structural cross-sectional view of the storage cabinet in one embodiment of the present invention.

[0019] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0020] Figure 5 This is a partial cross-sectional view of the storage cabinet from another position in one embodiment of the present invention.

[0021] Figure 6 This is a cross-sectional view of the storage cabinet in one embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the overall structure of the inner liner in one embodiment of the present invention.

[0023] Figure 8 for Figure 5 A magnified structural diagram at point B in the middle.

[0024] Figure 9 This is a schematic diagram of the overall structure of the storage cabinet from another position in one embodiment of the present invention.

[0025] Figure 10 This is an exploded structural diagram of the inner liner and storage device in one embodiment of the present invention.

[0026] Figure 11 This is an exploded structural diagram of the inner liner and the door body in one embodiment of the present invention.

[0027] Figure 12 This is an exploded view of the vacuum device and the electronic control board in one embodiment of the present invention.

[0028] Figure 13 This is an exploded view of the vacuum device and the electronic control board in another aspect of one embodiment of the present invention.

[0029] Figure 14 This is a schematic diagram of the assembly structure of the inner liner and storage device in one embodiment of the present invention. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] See Figures 1-14The vacuum-sealed locker includes an outer shell 1, an inner liner 2 inside the outer shell 1, and a sliding door 3 on the front side of the inner liner 2. A vacuum device for evacuating the inside of the inner liner 2 is provided on the rear side of the outer shell 1. The air inlet of the vacuum device is connected to the inside of the inner liner 2, and the air outlet of the vacuum device is connected to the outside. A vent valve 4 is provided on the door 3. When the vent valve 4 is opened, the inside of the inner liner 2 is connected to the outside, allowing outside air to enter the inner liner 2, thereby balancing the internal and external air pressure.

[0032] The vacuuming device includes a vacuum pump 5 for evacuating air from the inside of the inner liner 2 and a solenoid valve 6 for opening or cutting off the air passage. An air extraction port 7 is provided on the rear side of the inner liner 2, which is connected to the inside of the inner liner 2. The air inlet of the solenoid valve 6 is connected to the air extraction port 7, and the air outlet of the solenoid valve 6 is connected to the air inlet of the vacuum pump 5. The air outlet of the vacuum pump 5 is connected to the outside. The air inlet of the solenoid valve 6 is the air inlet of the vacuuming device, and the air outlet of the vacuum pump 5 is the air outlet of the vacuuming device. When the vacuum pump 5 is evacuating air, the solenoid valve 6 is opened. The air inside the inner liner 2 passes through the air extraction port 7 and the solenoid valve 6 to the vacuum pump 5, and then is extracted by the vacuum pump 5 to the electrical chamber 21. Finally, it is discharged to the outside through the exhaust port 23, thereby evacuating the inside of the inner liner 2.

[0033] An electronic control board 8 is installed inside the outer shell 1. A vent 45 is located on the rear side of the inner liner 2, connecting to the interior of the inner liner 2. The electronic control board 8 is equipped with a pressure sensor 27 for detecting the internal air pressure of the inner liner 2. The pressure sensor 27 is connected to the vent 45 through a vent pipe 26, thereby detecting the internal air pressure (vacuum) of the inner liner 2. The electronic control board 8 is electrically connected to the pressure sensor 27, the vacuum pump 5, and the solenoid valve 6. The pressure sensor 27 feeds back the detected air pressure to the electronic control board 8, and the electronic control board 8 controls the operation of the vacuum pump 5 and the solenoid valve 6 based on the detected air pressure. When the inner liner 2 is evacuated, the electronic control board 8 first supplies power to the solenoid valve 6. Power is supplied to open the gas path, and then vacuum pump 5 is started to evacuate air from inner liner 2. When the pressure sensor 27 detects that inner liner 2 has reached the preset vacuum level, the electronic control board 8 first stops vacuum pump 5 and then closes solenoid valve 6. Turning off the pump first and then closing the valve can prevent backflow that may occur when vacuum pump 5 stops, and better maintain the vacuum level inside inner liner 2. When inner liner 2 is not being evacuated, solenoid valve 6 remains closed, completely isolating the vacuum environment of inner liner 2 from the outside atmosphere, and can maintain the vacuum state of inner liner 2 for a long time.

[0034] Several reinforcing ribs 9 are provided on the sides of the inner liner 2. The reinforcing ribs 9 are provided on the inner liner 2 with concave and convex shapes. In this embodiment, the reinforcing ribs 9 protrude from the outside of the inner liner 2. The reinforcing ribs 9 can improve the structural strength of the inner liner 2 and prevent the inner liner 2 from being flattened by external force after the vacuum is drawn inside.

[0035] A filling area 10 is provided between the outer shell 1 and the inner liner 2. The filling area 10 is filled with a foam layer 11, which serves as a heat insulation layer and effectively blocks heat from the external environment from entering the interior of the inner liner 2, making it particularly suitable for food preservation.

[0036] Several reinforcing plates 12 are respectively provided on the outer periphery of the inner liner 2. The reinforcing plates 12 are embedded in the foam layer 11. The reinforcing plates 12 are integrally connected by several bending parts 13, which can improve the structural strength of the reinforcing plates 12. The reinforcing plates 12 are welded and fixed to the outer periphery of the inner liner 2. The reinforcing plates 12 are V-shaped. During the foaming process, the liquid foaming material will flow around the reinforcing plates 12. After solidification, it will firmly wrap and fix the reinforcing plates 12, so that the inner liner 2, the reinforcing plates 12 and the foam layer 11 form a solid integral composite structure, which greatly enhances the atmospheric pressure resistance of the inner liner 2. When the inner liner 2 is evacuated, its internal pressure is much lower than the external atmospheric pressure. The huge atmospheric pressure will act evenly on the inner liner 2. The above structure can prevent the inner liner 2 from being crushed.

[0037] The vent valve 4 includes a valve body 14, a valve stem 15, a seal 16, and an elastic element 17. The valve body 14 has an air inlet 28. The valve stem 15 is movably mounted on the valve body 14. The seal 16 is fitted onto the valve stem 15. The elastic element 17 is positioned between the valve stem 15 and the valve body 14. Under the elastic force of the elastic element 17, the valve stem 15 drives the seal 16 to close the air inlet 28, thereby closing the vent valve 4 and preventing communication between the inner liner 1 and the outside. Under external force, the valve stem 15 drives the seal 16 to close the air inlet 28. When component 16 opens the air inlet 28, it opens the vent valve 4, allowing the interior of the inner liner 2 to connect with the outside through the air inlet 28, thus balancing the internal and external air pressure. When it is necessary to open the door 2, the valve stem 15 is manually pressed, and the valve stem 15 moves towards the inner liner 2, thereby driving the sealing component 16 to open the air inlet 28. When the valve stem 15 is released, it moves back to its original position under the elastic force of the elastic component 17, and drives the sealing component 16 to re-close the air inlet 28.

[0038] The door body 3 includes an outer panel 29 and an inner panel 30. The outer panel 29 is provided with a first through hole 31, and the inner panel 30 is provided with a second through hole 32. The valve body 14 passes through the first through hole 31 and is fixed on the inner panel 30. The valve stem 15 passes through the first through hole 31 and the second through hole 32 in sequence. The valve stem 15 is provided with a pressing end 33 for pressing the valve stem 15. The pressing end 33 protrudes from the outside of the door body 3. The valve body 14 is provided with a valve cavity 34. The elastic element 17 is located in the valve cavity 34, and the valve stem 15 passes through the valve cavity 34. When the sealing element 16 opens the air inlet 28, the outside, the first through hole 31, the valve cavity 34, the air inlet 28, the second through hole 32, and the inside of the inner liner 1 are connected in sequence. The elastic element 17 is a spring, and the sealing element 16 is a sealing ring.

[0039] The inner liner 2 has an open opening 18 that connects to the inside of the inner liner 2 and a sealing strip 19 on the front side. The sealing strip 19 is arranged around the outer periphery of the open opening 18 and has a sealing part 20 protruding from the front side of the inner liner 2. When the door 3 slides closed, it abuts against the sealing part 20 to isolate the inside of the inner liner 2 from the outside through the sealing part 20. At this time, outside gas cannot enter the inside of the inner liner 2. The inner liner 2 has a sealing groove 35 on the front side and the sealing strip 19 is installed on the sealing groove 35.

[0040] An electrical chamber 21 and a cover plate 22 are provided on the rear side of the outer casing 1. The vacuum pump 5, the solenoid valve 6 and the electronic control board 8 are located inside the electrical chamber 21. The cover plate 22 covers the opening on the rear side of the electrical chamber 21. Several exhaust holes 23 are provided on the cover plate 22. The exhaust end of the vacuum pump 5 is connected to the electrical chamber 21. The electrical chamber 21 is connected to the outside through the exhaust holes 23.

[0041] The air inlet of the solenoid valve 6 is connected to the air extraction port 7 through the air inlet pipe 24, and the air outlet of the solenoid valve 6 is connected to the air inlet of the vacuum pump 5 through the air outlet pipe 25.

[0042] The inner liner 2 is equipped with a storage device 36, which includes a bottom frame 37, a support 38, and several storage containers 39. The bottom frame 37 is fixed in the middle of the inner liner 2, the support 38 is placed on the bottom frame 37, and the storage containers 39 are placed inside the support 38. The bottom frame 37 divides the interior of the inner liner 2 into an upper storage cavity 40 and a lower storage cavity 41. The support 38 and the storage containers 39 are located in the upper storage cavity 40. The inner side of the door 3 is equipped with a storage basket 42. The two sides of the storage basket 42 are equipped with movable slide rails 43, and the two sides of the lower storage cavity 41 are equipped with fixed slide rails 44. The door 3 slides open and closes at the front of the inner liner 2 through the cooperation of the movable slide rails 43 and the fixed slide rails 44. When the door 3 is open, the opening 18 is open. When the door 3 is closed, the opening 18 is closed. When the door 3 is closed, the storage basket 42 moves into the lower storage cavity 41 to form an embedded storage cabinet.

[0043] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum-sealed locker, comprising an outer shell (1), an inner liner (2) disposed within the outer shell (1), and a door (3) that slides open and closes on the front side of the inner liner (2), characterized in that: A vacuuming device for evacuating the inside of the inner liner (2) is provided on the rear side of the outer shell (1). The air inlet of the vacuuming device is connected to the inside of the inner liner (2), and the air outlet of the vacuuming device is connected to the outside. A venting valve (4) is provided on the door (3). When the venting valve (4) is opened, the inside of the inner liner (2) is connected to the outside.

2. The vacuum-capable storage cabinet according to claim 1, characterized in that: The vacuum device includes a vacuum pump (5) for evacuating the inside of the inner liner (2) and a solenoid valve (6) for opening or cutting off the air passage. The inner liner (2) is provided with an air extraction port (7). The air inlet of the solenoid valve (6) is connected to the air extraction port (7), the air outlet of the solenoid valve (6) is connected to the air inlet of the vacuum pump (5), and the air outlet of the vacuum pump (5) is connected to the outside.

3. The vacuum-capable storage cabinet according to claim 2, characterized in that: An electronic control board (8) is installed inside the outer shell (1), and a vent (45) is installed on the inner liner (2). A pressure sensor (27) for detecting the internal air pressure of the inner liner (2) is installed on the electronic control board (8). The pressure sensor (27) is connected to the vent (45) through a vent pipe (26). The electronic control board (8) is electrically connected to the pressure sensor (27), the vacuum pump (5), and the solenoid valve (6). The pressure sensor (27) feeds back the detected air pressure to the electronic control board (8). The electronic control board (8) controls the vacuum pump (5) and the solenoid valve (6) to work according to the detected air pressure.

4. The vacuum-capable storage cabinet according to claim 1, characterized in that: Several reinforcing ribs (9) are provided on the periphery of the inner liner (2), and the reinforcing ribs (9) are provided on the inner liner (2) with concave and convex shapes.

5. The vacuum-capable storage cabinet according to claim 1, characterized in that: A filling area (10) is provided between the outer shell (1) and the inner liner (2), and a foam layer (11) is filled on the filling area (10).

6. The vacuum-capable storage cabinet according to claim 5, characterized in that: Several reinforcing plates (12) are provided on the outer periphery of the inner liner (2). The reinforcing plates (12) are embedded in the foam layer (11) as a whole. The reinforcing plates (12) are integrally connected by several bending parts (13).

7. The vacuum-capable locker according to claim 5, characterized in that: The vent valve (4) includes a valve body (14), a valve stem (15), a seal (16), and an elastic element (17). The valve body (14) is provided with an air inlet (28). The valve stem (15) is movably mounted on the valve body (14). The seal (16) is fitted onto the valve stem (15). The elastic element (17) is located between the valve stem (15) and the valve body (14). Under the elastic force of the elastic element (17), the valve stem (15) drives the seal (16) to close the air inlet (28) to close the vent valve (4). Under the action of external force, the valve stem (15) drives the seal (16) to open the air inlet (28) to open the vent valve (4). The inner liner (2) is connected to the outside through the air inlet (28).

8. The vacuum-capable storage cabinet according to claim 1, characterized in that: The inner liner (2) has an opening (18) that connects to the inside of the inner liner (2) and a sealing strip (19) on the front side. The sealing strip (19) surrounds the outer periphery of the opening (18). The sealing strip (19) has a sealing part (20) that protrudes from the front side of the inner liner (2). When the door (3) slides closed, it abuts against the sealing part (20) so that the inside of the inner liner (2) is isolated from the outside through the sealing part (20).

9. The vacuum-capable storage cabinet according to claim 3, characterized in that: An electrical chamber (21) and a cover plate (22) are provided on the rear side of the outer casing (1). The vacuum pump (5), solenoid valve (6) and electrical control board (8) are located in the electrical chamber (21). The cover plate (22) covers the opening on the rear side of the electrical chamber (21). Several exhaust holes (23) are provided on the cover plate (22). The exhaust end of the vacuum pump (5) is connected to the electrical chamber (21). The electrical chamber (21) is connected to the outside through the exhaust holes (23).

10. The vacuum-capable locker according to claim 3, characterized in that: The inlet end of the solenoid valve (6) is connected to the air extraction port (7) through the inlet pipe (24), and the outlet end of the solenoid valve (6) is connected to the inlet end of the vacuum pump (5) through the outlet pipe (25).

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