An airtight storage device with a gas purification assembly
By introducing a combination of airbag body, purification box and air storage box into the airtight cabinet, the gas entering the cabinet is purified, which solves the problem of damage to items caused by untreated outside air and provides a stable storage environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN DINGKE TECHNOLOGY CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-21
AI Technical Summary
In airtight cabinets, outside air can enter without being purified, leading to damage to stored items.
An airtight storage device with a gas purification component was designed, including an airbag body, a purification box, and a gas storage box. By combining an air pump, an adsorbent hanging bag rack, and a purification box, dust removal and adsorption purification of the gas entering the cabinet can be achieved.
It effectively removes harmful gases from the cabinet, ensuring the safety of stored items and extending their shelf life, providing a stable storage environment.
Smart Images
Figure CN224529417U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of airtight cabinets, and in particular to an airtight storage device with a gas purification component. Background Technology
[0002] Airtight cabinets are widely used in many fields, including industrial production, protection of power electronic equipment, preservation of cultural relics and books, medicine storage, and household storage. Airtight cabinets are not only used for storing and protecting various equipment, instruments, cultural relics, books, and medicines in homes, but their performance also has a significant impact on the normal condition and lifespan of the stored items. In particular, for some items that are sensitive to environmental conditions, such as precision electronic components, hygroscopic chemicals, and ancient books and cultural relics, the stability of the temperature and humidity of the storage environment and the presence of corrosive gases specific to the items (such as dust, water vapor, oxygen, carbon dioxide, nitrogen oxides, ammonia, sulfur dioxide, etc.) directly affect their functional integrity and shelf life.
[0003] In actual use, every time the user opens the cabinet door, outside air rushes into the cabinet. After the user closes the cabinet door, outside air also enters the cabinet. If the air entering the cabinet is not purified, the long-term accumulation of outside air inside the cabinet will cause damage to the stored items. Summary of the Invention
[0004] To facilitate the purification of gases entering the airtight cabinet, an airtight storage device with a gas purification component is provided.
[0005] The above-mentioned objective of this application is achieved through the following technical solution: An airtight storage device with a gas purification component includes a cabinet with a door hinged to one side. An airbag body is provided on the cabinet. The bottom of the airbag body is provided with a pressure balancing working air pipe and an airbag gas purification air pipe that connect to the cabinet. An air pump is also provided inside the cabinet, and the air pump's air inlet is connected to the airbag gas purification air pipe. The cabinet contains a purification box, with a gas storage box fixed to one side. The gas storage box is connected to the air outlet of the air pump. One side of the purification box has an air inlet connected to the gas storage box, and the other side of the purification box has an air outlet. The purification box contains a miscellaneous gas adsorption chamber, and the miscellaneous gas adsorption chamber contains an adsorbent hanging bag rack for hooking the adsorbent.
[0006] By adopting the above technical solution, after the user opens the cabinet door to store or retrieve items, closing the door will activate the air pump. The air pump will pump some of the gas mixed with outside air into the airbag body through the pressure balancing working air pipe, and then pump the gas in the airbag body into the gas storage box. The gas in the gas storage box will then enter the impurity gas adsorption chamber through the air inlet. The adsorbent on the adsorbent hanging bag will adsorb the gas entering the impurity gas adsorption chamber, completing the dust removal and purification of all the gas in the cabinet, so that the gas in the enclosed space of the cabinet meets the storage requirements of the stored items.
[0007] Preferably, the top of the cabinet is equipped with a low-pressure switch and a low-pressure solenoid valve controlled by the low-pressure switch, and the low-pressure solenoid valve is connected to the gas storage box. By adopting the above technical solution, when the low-pressure switch detects a decrease in air pressure inside the cabinet, the low-pressure solenoid valve draws outside air into the air storage box. The gas in the air storage box enters the purification box through the air inlet. The adsorbent on the adsorbent hanging bag rack inside the purification box can adsorb and purify the impurities entering the cabinet, preventing outside impurities from entering the cabinet and damaging the stored items.
[0008] Preferably, the purification box has a dust removal chamber connected to the impurity gas adsorption chamber on one side of the air inlet, and the dust removal chamber is provided with adsorption cotton.
[0009] By adopting the above technical solution, when the gas in the gas storage box enters the impurity adsorption chamber from the air inlet, the gas will first pass through the dust removal chamber and then through the impurity adsorption chamber. The adsorption cotton can filter the gas in the dust removal chamber, remove dust and other impurities, prevent dust from entering the cabinet and contaminating the stored items, and improve the cleanliness of the air in the storage cabinet.
[0010] Preferably, the outer wall of the purification box has several limiting holes, and the two ends of the adsorbent hanging bag frame are respectively provided with limiting protrusions that are engaged in the limiting holes.
[0011] By adopting the above technical solution, the limiting protrusions at both ends of the adsorbent hanging bag rack are locked in the limiting holes of the purification box. When the adsorbent on the adsorbent hanging bag rack fails, the adsorbent hanging bag rack can be removed from the purification box by removing the outer wall on one side of the purification box, which facilitates the replacement of the adsorbent and improves the stability of the storage cabinet in long-term use.
[0012] Preferably, there are several purification boxes, and the purification boxes are respectively fixed on the inner wall of the top and bottom of the cabinet. A fan is fixed on the inner wall of the bottom of the cabinet. A humidity sensor electrically connected to the fan is also provided in the cabinet. The fan abuts against the side of the bottom purification box where the air inlet is opened.
[0013] By adopting the above technical solution, a purification box is set at the bottom of the cabinet, which, together with the purification box at the top, can further improve the purification effect on the air inside the cabinet. A fan is set on the inner wall at the bottom of the cabinet, which is opposite to the air inlet. When the humidity sensor detects that the humidity inside the cabinet is high, the fan will be automatically started, so that the air inside the cabinet flows through the purification box at the bottom under the drive of the fan for adsorption and purification. The fan can be automatically controlled to start and stop according to the humidity inside the cabinet, ensuring that the humidity inside the cabinet is stable and preventing the stored items from deliquescing due to excessive humidity.
[0014] Preferably, a heater is also fixedly installed on the inner wall of the bottom of the cabinet. The heater is positioned opposite to the air outlet of the bottom purification box. The bottom purification box of the cabinet is provided with an inclined guide plate at the air outlet, and the end of the guide plate is aligned with the heater.
[0015] By adopting the above technical solution, the heater can heat the gas coming out of the bottom purification box outlet. An inclined guide plate is set at the bottom purification box outlet so that the gas after being adsorbed and purified by the bottom purification box flows along the inclined direction of the guide plate, ensuring that most of the purified gas flows through the heater and reducing the risk of the gas rising without being heated by the heater.
[0016] Preferably, the cabinet body has a door frame on the side facing the cabinet door, and a limit switch is provided on the door frame for the cabinet door to abut against. The top of the cabinet body is provided with a time relay electrically connected to the limit switch, and the time relay is electrically connected to the fan and the top air pump.
[0017] By adopting the above technical solution, when the cabinet door is closed, the limit switch is triggered, which activates the time relay. The time relay starts the fan at the bottom of the cabinet and the air pump at the top according to the set time. The fan drives the air at the bottom of the cabinet to flow through the purification box at the bottom of the cabinet, and the air pump drives the air at the top of the cabinet to flow through the purification box at the top of the cabinet. After the user stores or retrieves items and closes the cabinet door, the air inside the cabinet can be automatically purified.
[0018] Preferably, the adsorbent bag rack in the purification box at the top of the cabinet is arranged horizontally, and the adsorbent bag rack in the purification box at the bottom of the cabinet is arranged vertically.
[0019] By adopting the above technical solution, when replacing the adsorbent in the corresponding purification box, the adsorbent bag holder in the top purification box is set horizontally and the adsorbent bag holder in the bottom purification box is set vertically, which makes it easy to remove the adsorbent bag holder from the purification box and avoids the risk of falling off when the vertical adsorbent bag holder is set in the top purification box.
[0020] Preferably, the inner wall of the cabinet is provided with an open-type absorbent bag rack.
[0021] By adopting the above technical solution, the open-type adsorbent bag rack can be used to place adsorbents, so that the gas inside the cabinet that has not passed through the purification box can be adsorbed and purified by the adsorbent on the open-type adsorbent bag rack. The open purification section in the middle only has passive purification capability and only includes the purification function of impurities, ensuring that the gas inside the cabinet is in a purified state.
[0022] Preferably, the structure of the cabinet is suitable for storage cabinets or storage boxes.
[0023] By adopting the above technical solution, regardless of differences in size or number of doors, it is ensured that the above-mentioned purification box can achieve gas purification in storage devices of different shapes.
[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The top purification box completes the dust removal and purification process of all gases in the airbag and part of the enclosed space. The bottom purification box completes the dust removal and purification of all gases in the enclosed space after the door is opened and closed. The impurity adsorption chambers at the top and bottom are not completely sealed. In addition to active adsorption after the door is closed, they can also have the same passive adsorption function as the open adsorbent in the middle. They can adsorb harmful gases of stored items in the enclosed space for a long time, ensuring the long-term purity of the internal gas and providing stable and controllable conditions for the types of gases during the storage of items. 2. The types of adsorbents inside the cabinet are set according to the anti-corrosion requirements of the stored items. They can adsorb gases such as dust, water vapor, oxygen, carbon dioxide, nitrogen oxides, ammonia, and sulfur dioxide in the air, providing safer anti-corrosion storage conditions for the stored items and extending their shelf life. 3. The product casing can be made of steel plate or various non-metallic materials. The internal adsorbent is an environmentally friendly substance that is non-toxic and harmless before and after adsorption, providing stable environmental conditions for valuable stored substances in an economical and practical way. 4. The innovation of this application lies in the simplification of the effective control method of gas composition in a closed space by the gas purification component. The gas composition is controlled by the selection and placement of the adsorbent, and long-term use can be achieved by repeatedly replacing the adsorbent. Attached image description: Figure 1 This is a schematic diagram of the structure of an airtight storage box; Figure 2 A schematic diagram of the air pump installed inside the cabinet; Figure 3 This is a sectional view of the instrument box and airbag housing on the cabinet. Figure 4 for Figure 1 A sectional view; Figure 5 This is a schematic diagram of an explosion of the purification box; Figure 6 for Figure 2 A sectional view; Figure 7 This is a diagram showing the connection structure between the air pump, low-pressure mechanical pressure relief valve, low-pressure solenoid valve and air storage box. Figure 8 for Figure 4 A magnified view of a portion at point A; Figure 9 A schematic diagram showing the installation of a time relay and a limit switch; Attached reference numerals: 1. Cabinet; 11. Cabinet door; 12. Door frame; 13. Air pump; 14. Fan; 15. Humidity sensor; 16. Limit switch; 17. Heater; 2. Airbag housing; 21. Airbag body; 22. Pressure balancing working air pipe; 23. Airbag gas purification air pipe; 3. Instrument box; 31. High-pressure switch; 32. Low-pressure switch; 33. High-pressure solenoid valve; 34. Low-pressure solenoid valve; 35. High-pressure mechanical pressure relief valve; 36. Low-pressure mechanical pressure relief valve; 37. Time relay; 4. Purification box; 41. Air inlet; 42. Air outlet; 43. Impurity gas adsorption chamber; 44. Adsorbent bag holder; 441. Limiting protrusion; 45. Limiting hole; 46. Dust removal chamber; 47. Adsorbent cotton; 5. Air storage box; 6. Guide plate. Detailed implementation method: The following section provides a more detailed description, in conjunction with the accompanying diagrams: As attached Figure 1 As shown, an airtight storage device with a gas purification component includes a cabinet 1. The cabinet 1 is assembled from several sheet metal parts, and all joints of the sheet metal parts are fully welded to ensure the airtightness of the cabinet 1. A cabinet door 11 is hinged to one side of the cabinet 1. A door frame 12 is fixedly provided on the side of the cabinet 1 facing the cabinet door 11. A sealing strip that abuts against the door frame 12 is also fixedly connected to the cabinet door 11 to ensure the airtightness of the cabinet 1 when the cabinet door 11 is closed.
[0025] The top of the cabinet 1 is equipped with an airbag box 2 and an instrument box 3. Both the airbag box 2 and the instrument box 3 are fixed to the top of the cabinet 1 by welding screws, which reduces additional openings and ensures the airtightness of the cabinet 1.
[0026] As attached Figure 2 and attached Figure 3As shown, the airbag housing 2 contains an airbag body 21. The airbag body 21 is typically made of rubber with good elasticity and sealing properties, and can expand or contract or spring up according to changes in the amount of gas inside. The side of the airbag body 21 that abuts against the cabinet 1 is provided with a pressure balancing working air pipe 22 and an airbag gas purification air pipe 23 that are connected to the inside of the cabinet 1. An air pump 13 is fixedly connected to the inner wall of the top of the cabinet 1. The air inlet of the air pump 13 is connected to the airbag gas purification air pipe 23. Thus, when the cabinet 1 is under high pressure, the gas inside the cabinet 1 will communicate with the gas inside the airbag 21 through the pressure balancing working air pipe 22 to achieve pressure balance between the two spaces. When the cabinet 1 is under low pressure, the gas inside the airbag 21 will communicate with the gas inside the cabinet 1 through the pressure balancing working air pipe 22 to achieve pressure balance between the two spaces.
[0027] As attached Figure 3 and attached Figure 4 As shown, an airtight storage device with a gas purification component further includes a purification box 4 and a gas storage box 5. There are three purification boxes 4 here. Two purification boxes 4 are fixedly connected to the inner wall of the bottom of the cabinet 1, and one purification box 4 is fixedly connected to the inner wall of the top of the cabinet 1. The purification box 4 is rectangular in shape. A circular air inlet 41 is opened on one side of the purification box 4, and an open air outlet 42 is opened on the other side. The purification box 4 is provided with a miscellaneous gas adsorption chamber 43. The miscellaneous gas adsorption chamber 43 is provided with an adsorbent hanging bag rack 44. Several adsorbents are hooked on the adsorbent hanging bag rack 44. The adsorbent can be any kind of adsorbent that is suitable for the miscellaneous gas to be adsorbed (including corrosive moisture, oxygen, ammonia, sulfur dioxide, nitrogen oxides, hydrogen sulfide, chloride ions, carbon dioxide, ammonia, ozone, etc.). They have strong adsorption capacity and can effectively improve the humidity and gas composition of the enclosed space.
[0028] As attached Figure 5 and attached Figure 6 As shown, the outer wall of the purification box 4 has several limiting holes 45. The adsorbent hanging bag rack 44 is comb-shaped. Both ends of the adsorbent hanging bag rack 44 are integrally formed with limiting blocks. The limiting protrusions 441 at both ends of the adsorbent hanging bag rack 44 are respectively locked in the limiting holes 45 of the purification box 4. The side wall of the purification box 4 with the limiting holes 45 is connected to other outer walls by bolts. Thus, when the adsorbent on the adsorbent hanging bag rack 44 fails, the outer wall of the purification box 4 can be removed to take the adsorbent hanging bag rack 44 out of the purification box 4, which is convenient for replacing the adsorbent.
[0029] The adsorbent bag holder 44 inside the top purification box 4 is set horizontally, and the adsorbent bag holder 44 inside the bottom purification box 4 is set vertically. When the adsorbent on the adsorbent bag holder 44 becomes ineffective, the operator can remove the side wall of the purification box 4 with the limit hole 45. The adsorbent bag holder 44 inside the top purification box 4 can be removed and replaced horizontally, and the adsorbent bag holder 44 inside the bottom purification box 4 can be removed and replaced vertically. This avoids the risk of the adsorbent bag holder 44 falling off during disassembly and assembly when it is set vertically in the top purification box 4.
[0030] An open-type adsorbent bag rack 44 is provided on the inner wall of the cabinet 1. The open-type adsorbent bag rack 44 can be used to place adsorbent, so that the gas in the cabinet 1 that has not passed through the purification box 4 can be adsorbed and purified by the adsorbent on the open-type adsorbent bag rack 44, ensuring that the gas in the cabinet 1 is in a purified state after adsorption.
[0031] The gas storage box 5 is rectangular in shape. There is one gas storage box 5 here. The gas storage box 5 is connected to the side of the purification box 4 at the top of the cabinet 1 with the air inlet 41. The gas storage box 5 and the purification box 4 are connected through the air inlet 41. The gas storage box 5 is also connected to the air outlet of the air pump 13. Thus, the gas pumped into the cabinet 1 from the airbag body 21 by the air pump 13 must pass through the gas storage box 5, the air inlet 41, the impurity adsorption chamber 43, and be adsorbed by the adsorbent on the adsorbent hanging bag frame 44 before flowing into the cabinet 1.
[0032] The purification box 4 is located on one side of the air inlet 41 and has a dust removal chamber 46 connected to the impurity gas adsorption chamber 43. The dust removal chamber 46 is equipped with adsorption cotton 47. When the gas in the gas storage box 5 enters the impurity gas adsorption chamber 43 from the air inlet 41, the gas will first pass through the dust removal chamber 46 and then through the impurity gas adsorption chamber 43. The adsorption cotton 47 can filter the gas in the dust removal chamber 46 to remove dust and other impurities, prevent dust from entering the cabinet 1 and causing pollution to the stored items, and improve the cleanliness of the air in the storage cabinet.
[0033] As attached Figure 6 and attached Figure 7 As shown, the instrument box 3 is equipped with a high-pressure switch 31, a low-pressure switch 32, a high-pressure solenoid valve 33, a low-pressure solenoid valve 34, a high-pressure mechanical pressure relief valve 35, and a low-pressure mechanical pressure relief valve 36. The high-pressure switch 31 is electrically connected to the high-pressure solenoid valve 33, and the low-pressure switch 32 is electrically connected to the low-pressure solenoid valve. The high-pressure switch 31 and the low-pressure switch 32 are used to detect the air pressure inside the cabinet 1 and transmit it to the high-pressure solenoid valve 33 and the low-pressure solenoid valve 34 respectively. The high-pressure solenoid valve 33 and the high-pressure mechanical pressure relief valve 35 are both connected to the cabinet 1. When the air pressure inside the cabinet 1 is high, the high-pressure solenoid valve 33 discharges the gas inside the cabinet 1 to the outside. When the high-pressure solenoid valve 33 fails or the air pressure inside the cabinet 1 rises sharply, the high-pressure mechanical pressure relief valve 35 can relieve the pressure inside the cabinet 1.
[0034] One end of the low-pressure solenoid valve 34 is connected to the instrument box 3, and the other end of the low-pressure solenoid valve 34 is connected to the air storage box 5. The low-pressure mechanical pressure relief valve 36 is installed upside down on the inner wall of the top of the cabinet 1. One end of the low-pressure mechanical pressure relief valve 36 is connected to the instrument box 3, and the other end of the low-pressure mechanical pressure relief valve 36 is connected to the air storage box 5. When the air pressure inside the cabinet 1 is low, the low-pressure solenoid valve 34 is used to draw outside air into the air storage box 5. When the low-pressure solenoid valve 34 fails or the air pressure inside the cabinet 1 drops sharply, the low-pressure mechanical pressure relief valve 36 is activated and draws outside air into the air storage box 5. This means that when the low-pressure mechanical pressure relief valve 36 and the low-pressure solenoid valve 34 are adjusting the air pressure, the outside air needs to be adsorbed and purified by the purification box 4 at the top.
[0035] As attached Figure 8 and attached Figure 9 As shown, a fan 14 is fixedly installed on the inner wall of the bottom of the cabinet 1, and a humidity sensor 15 electrically connected to the fan 14 is fixedly installed on the inner wall of the cabinet 1. There are two fans 14 here, and the two fans 14 are respectively set to abut against the side of the two bottom purification boxes 4 with air inlets 41. When the humidity sensor 15 detects that the humidity inside the cabinet 1 is high, the fan 14 will be automatically started, so that the air inside the cabinet 1 flows through the bottom purification box 4 under the drive of the fan 14 for adsorption and purification. The start and stop of the fan 14 can be automatically controlled according to the humidity inside the cabinet to ensure the humidity inside the cabinet is stable and to prevent the stored items from deliquescence due to excessive humidity.
[0036] Heaters 17 are also fixedly installed on the inner wall of the bottom of the cabinet 1. There are two heaters 17 here. The two heaters 17 are respectively set opposite to the air outlets 42 of the two bottom purification boxes 4. The heaters 17 can heat the gas coming out of the air outlets 42 of the bottom purification boxes 4. The heated gas rises, and at the same time, the fan 14 on one side of the bottom purification box 4 of the cabinet 1 drives the gas flow, so that the inside of the cabinet 1 forms a circulation backflow, ensuring that the gas in the cabinet 1 is adsorbed and purified by the bottom purification box 4.
[0037] The purification box 4 at the bottom of the cabinet 1 is equipped with an inclined guide plate 6 at the air outlet 42. The guide plate 6 is located at the upper end of the air outlet 42, and the end of the guide plate 6 is aligned with the heater 17. This ensures that the gas in the purification box 4 is blocked by the guide plate 6 and flows out from the lower end of the air outlet 42. The purified gas adsorbed by the bottom purification box 4 flows along the inclined direction of the guide plate 6, ensuring that most of the purified gas flows through the heater 17, reducing the risk of the gas rising without being heated by the heater 17.
[0038] A limit switch 16 is fixedly connected to the door frame 12 for triggering when the cabinet door 11 comes into contact with it. A time relay 37 is installed on the top of the cabinet body 1. The time relay 37 is located inside the instrument box 3 and is electrically connected to the limit switch 16, the fan 14, and the air pump 13. When the cabinet door 11 is closed, the limit switch 16 is triggered, which in turn triggers the time relay 37 to start. The time relay 37 starts the fan 14 at the bottom of the cabinet body 1 and the air pump 13 at the top according to the set time. The fan 14 drives the air inside the cabinet body 1 to flow through the purification box 4 at the bottom of the cabinet body 1. After the user stores or retrieves items and closes the cabinet door 11, the fan 14 is automatically started to adsorb and purify the air at the bottom, and then automatically stops after a period of time. At the same time, the air pump 13 is started to drive the air in the airbag through the air storage box 5 at the top. After the user stores or retrieves items and closes the cabinet door 11, the fan 14 is automatically started to purify the air, and then automatically stops after a period of time. This improves the convenience of use and the energy-saving effect.
[0039] When the ambient temperature drops and changes, the low-pressure relief valve 34 and the low-pressure solenoid valve 32 work. The gas entering the cabinet through both valves is purified by passing through the top gas storage box 5, the dust removal chamber 46, and the impurity gas adsorption chamber 43 in sequence, ensuring that the gas entering the cabinet at low pressure is also purified to meet the requirements for storing items.
[0040] The implementation principle of this embodiment: When cabinet door 11 is opened, outside air enters cabinet 1. After cabinet door 11 is closed, cabinet door 11 presses against and triggers limit switch 16. Limit switch 16 activates time relay 35. Time relay 35 continues to activate air pump 13 at certain intervals. All the gas pre-stored in airbag 21 and some gas mixed with outside air in cabinet 1 are pumped into airbag body 21 through airbag pressure balancing working air pipe 22. Then air pump 13 pumps the gas in airbag body 21 into air storage box 5 through airbag gas purification air pipe 23. The gas in air storage box 5 enters dust removal chamber 46 through air inlet 41 of purification box 4. Adsorption cotton 47 performs dust removal operation on the gas. The gas then flows from dust removal chamber 46 through impurity gas adsorption chamber 43 and is adsorbed by adsorbent on adsorbent hanging bag rack 44. The adsorbed and purified gas returns to cabinet 1 from air outlet 42, completing the purification cycle. When the cabinet door 11 is opened and closed, the cabinet door 11 presses against the limit switch 16, the limit switch 16 activates the time relay 37, and the time relay 37 continues to activate the fan 14 at the bottom of the cabinet 1 at a certain time. The fan 14 drives the gas in the cabinet 1 to flow through the bottom purification box 4 for adsorption and purification. The heater 17 at the air outlet 42 heats the purified gas, forming a hot airflow that rises. The heater 17 and the fan 14 work together to form a gas circulation, completing the dust removal and purification of all the gas in the cabinet 1, so that the gas in the enclosed space inside the cabinet meets the storage requirements of the stored items.
[0041] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.
Claims
1. An airtight storage device with a gas purification component, comprising a cabinet (1), wherein a cabinet door (11) is hinged to one side of the cabinet (1), characterized in that, The cabinet (1) is provided with an airbag body (21), and the bottom of the airbag body (21) is provided with a pressure balancing working air pipe (22) and an airbag gas purification air pipe (23) that connect the cabinet (1). The cabinet (1) is also provided with an air pump (13), and the air inlet of the air pump (13) is connected to the airbag gas purification air pipe (23). The cabinet (1) is equipped with a purification box (4), and a gas storage box (5) is fixed on one side of the purification box (4). The gas storage box (5) is connected to the air outlet of the air pump (13). An air inlet (41) connected to the gas storage box (5) is opened on one side of the purification box (4), and an air outlet (42) is opened on the other side of the purification box (4). The purification box (4) is equipped with a miscellaneous gas adsorption chamber (43), and an adsorbent hanging bag rack (44) for hooking the adsorbent is provided in the miscellaneous gas adsorption chamber (43).
2. The airtight storage device with a gas purification component according to claim 1, characterized in that, The cabinet (1) is equipped with a low-pressure switch (32) and a low-pressure solenoid valve (34) controlled by the low-pressure switch (32) on the top, and the low-pressure solenoid valve (34) is connected to the gas storage box (5).
3. The airtight storage device with a gas purification component according to claim 1, characterized in that, The purification box (4) is provided with a dust removal chamber (46) connected to the impurity gas adsorption chamber (43) on one side of the air inlet (41), and the dust removal chamber (46) is provided with adsorption cotton (47).
4. The airtight storage device with a gas purification component according to claim 1, characterized in that, The purification box (4) has several limiting holes (45) on its outer wall, and the adsorbent hanging bag frame (44) has limiting protrusions (441) at both ends that are fitted into the limiting holes (45).
5. The airtight storage device with a gas purification component according to claim 1, characterized in that, The purification box (4) is provided in several parts, and the purification box (4) is fixed on the top inner wall and bottom inner wall of the cabinet (1). A fan (14) is fixed on the bottom inner wall of the cabinet (1). A humidity sensor (15) electrically connected to the fan (14) is also provided inside the cabinet (1). The fan (14) abuts against the side of the bottom purification box (4) with the air inlet (41).
6. The airtight storage device with a gas purification component according to claim 5, characterized in that, A heater (17) is also fixedly installed on the inner wall of the bottom of the cabinet (1). The heater (17) is positioned opposite to the air outlet (42) of the bottom purification box (4). The purification box (4) at the bottom of the cabinet (1) is provided with an inclined guide plate (6) at the air outlet (42). The end of the guide plate (6) is aligned with the heater (17).
7. The airtight storage device with a gas purification component according to claim 5, characterized in that, The cabinet (1) has a door frame (12) on the side facing the cabinet door (11). The door frame (12) has a limit switch (16) for the cabinet door (11) to abut. The top of the cabinet (1) has a time relay (37) electrically connected to the limit switch (16). The time relay (37) is electrically connected to the fan (14) and the top air pump (13).
8. The airtight storage device with a gas purification component according to claim 5, characterized in that, The adsorbent bag rack (44) inside the purification box (4) at the top of the cabinet (1) is arranged horizontally, and the adsorbent bag rack (44) inside the purification box (4) at the bottom of the cabinet (1) is arranged vertically.
9. A gas-tight storage device with a gas purification component according to claim 1, characterized in that, The cabinet (1) has an open-type adsorbent bag rack (44) on its inner wall.
10. A gas-tight storage device with a gas purification component according to claim 1, characterized in that, The structure of the cabinet (1) is suitable for storage cabinets or storage boxes.