CN110074562B

CN110074562B - Archive storage cabinet

Info

Publication number: CN110074562B
Application number: CN201910356023.9A
Authority: CN
Inventors: 李曙东; 彭娇娇
Original assignee: Beijing Daybreak Wenyi Furniture Co ltd
Current assignee: Liming International Intelligent Furniture Shenzhou Co ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-12-08
Anticipated expiration: 2039-04-29
Also published as: CN110074562A

Abstract

The application relates to the technical field of storage, and particularly discloses a file storage cabinet, which comprises a rack and a cabinet body, wherein an ultraviolet lamp is fixed in the cabinet body, and an ultraviolet lamp switch is arranged on the rack; a drawer is arranged in the cabinet body; when the drawer is closed, the drawer and the cabinet body are sealed; the cabinet body is communicated with a Venturi tube fixed on the frame; a suction pipe is arranged at the throat part of the Venturi tube and is connected with an air source through an air pump; the suction pipe is provided with an adjusting valve; the air outlet end of the Venturi tube is connected with a purification box fixed on the rack, and the purification box can filter, absorb water and remove odor; one end of the purifying box far away from the Venturi tube is connected with an exhaust fan fixed on the frame, and the outlet of the exhaust fan is communicated with the inside of the cabinet body; a frequency modulation switch of an exhaust fan is fixed on the frame; the cabinet body is provided with an exhaust hole. The purpose of this patent is in solving the problem that ultraviolet lamp shines the paper that archives can destroy archives for a long time and is unfavorable for the archives storage.

Description

Archive storage cabinet

Technical Field

The invention relates to the technical field of storage, in particular to a file storage cabinet.

Background

Archive storage refers to placing archives in special archive storehouse, arranges according to certain arrangement order to form the location data. The file storeroom should have anti-theft measures, and the general storeroom should be additionally provided with an anti-theft door and window. The window of the file storeroom is matched with a curtain to prevent sunlight from directly irradiating the storeroom; meanwhile, the storehouse lighting device is suitable for using an incandescent lamp, and the damage of ultraviolet rays in a fluorescent lamp to archival paper is avoided. The storehouse with higher humidity is equipped with a dehumidifier and a moisture absorbent. The fire source signs are required to be extinguished around the file storeroom, smoking is strictly prohibited in the storeroom, a strict fire prevention system is required to be established, and fire-fighting equipment is required to be equipped. In order to prevent the files from being damaged by rats, the storeroom should be checked regularly and put in rodenticide. The archival repository can reduce the phenomenon of overhigh temperature in the repository by cold water spraying, mechanical ventilation, natural ventilation and other methods.

Chinese patent with the publication number of CN207754846U discloses a file management and storage device for work, which comprises a storage device body, wherein the storage device body comprises three book storage layers symmetrically arranged in the device body, one side of the inner wall of each book storage layer is provided with a first telescopic rod, the first telescopic rod extends to the tail end and is provided with a drawer, the inner wall of the bottom end of each book storage layer is provided with a sliding chute, a pulley is arranged between the lower end of the drawer and the sliding chute, one side of the inner wall of each book storage layer and positioned at the lower end of the drawer is provided with a support rod, the book storage layer is provided with a drawer door, a support rod is arranged between the inner walls at the upper end of the drawer door, the lower end of the support rod is respectively and symmetrically provided with a second telescopic rod and two ropes, the lower end of each rope is provided with a pull curtain, the second telescopic rod extends to, and the base layer is internally provided with a shockproof honeycomb.

Above-mentioned scheme utilizes the handle to pull open the sliding door, rethread control button, make telescopic link one stretch out, promote the pulley of drawer lower extreme and move on the spout, telescopic link two utilizing the branch lower extreme, indentation through telescopic link two, the draw curtain with the rope lower extreme is pulled up, the drawer is from coming out slowly in the deposit layer, just can put into the drawer with the archives that need save, close the drawer, reuse telescopic link will draw the curtain and put down, close the sliding door simultaneously, when the deposit layer seals completely, open ultraviolet lamp and thermostat, make the intraformational archives of deposit can also keep constant temperature when being disinfected, utilize hole one, hole two and hole three are ventilative for the deposit layer, prevent that the archives from going mouldy in the drawer for a long time, utilize the intraformational shockproof honeycomb of basic group at last, give archives management storage device shock attenuation.

Although above-mentioned scheme has realized the better storage of archives to a certain extent, above-mentioned scheme still has ultraviolet lamp and shines the paper that archives can destroy the archives for a long time and be unfavorable for archives storage's problem.

Disclosure of Invention

Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a file storage cabinet, and solve the problem that ultraviolet lamps irradiate files for a long time to damage paper of the files, so that the files are not beneficial to file storage.

In order to solve the problems, the technical scheme adopted by the invention is as follows: a file storage cabinet comprises a rack and a cabinet body, wherein an ultraviolet lamp is fixed in the cabinet body, and an ultraviolet lamp switch is fixed on the rack; a drawer is arranged in the cabinet body; when the drawer is closed, the drawer and the cabinet body are sealed; the cabinet body is communicated with a Venturi tube fixed on the frame; a suction pipe is arranged at the throat part of the Venturi tube and is connected with an air source through an air pump; the suction pipe is provided with an adjusting valve; the air outlet end of the Venturi tube is connected with a purifying box which is fixed on the frame and can filter, absorb water and remove odor; one end of the purifying box far away from the Venturi tube is connected with an exhaust fan fixed on the frame, and the outlet of the exhaust fan is communicated with the inside of the cabinet body; a frequency modulation switch for controlling the exhaust fan is fixed on the frame; the cabinet body is provided with an exhaust hole.

The technical principle of the basic scheme is as follows:

1. set up ultraviolet lamp for disinfect to archives, ultraviolet lamp is closed immediately after the disinfection is accomplished.

2. The air pump and the venturi tube are arranged, air or nitrogen is sucked in by the suction pipe at the throat part of the air pump and the venturi tube, the air in the cabinet body is replaced, and redundant air in the cabinet body is discharged from the exhaust hole.

3. The purification box is arranged to filter and remove dust, absorb water and remove odor from the gas in the Venturi tube, and then the gas is discharged into the cabinet body through the exhaust fan.

4. An exhaust fan is arranged to generate negative pressure and drive gas circulation.

The beneficial effect that this scheme produced is:

compared with the prior art that the files are damaged by long-time irradiation of ultraviolet lamps, the files are not beneficial to file storage, ultraviolet lamp irradiation is firstly carried out on the files, the ultraviolet lamps are closed immediately after the files are disinfected, the situation that ultraviolet rays irradiate the files for a long time to damage the paper of the files is avoided, meanwhile, in the irradiation process of the ultraviolet lamps, air sucked into the cabinet body by an exhaust fan is sent into a Venturi tube, cold air is sucked into a suction tube at the throat part of the Venturi tube through an air pump, mixed air enters a purifying box to be filtered and dedusted, water is absorbed and deodorized and then returns to the inside of the cabinet body, redundant air in the cabinet body is exhausted from an exhaust hole, on one hand, temperature rise caused by heat generated by ultraviolet lamp irradiation in the cabinet body is avoided, on the other hand, humid dirty air in the cabinet body is replaced by dry clean air, and then the suction, then the regulating valve is closed, and nitrogen is kept circulating in the device, so that the storage of the file is ensured.

Further, the drawer is made of transparent plastic; the cabinet body is externally provided with a door curtain, and the color of the door curtain is dark.

Conveniently look over the archives of the internal portion of cabinet, can avoid archives to be penetrated directly by sunshine again simultaneously.

Further, the door curtain is made of plastics, is rolled into a roll, can be kept rolled under the memory function of the door curtain, and is set to be capable of completely shielding one side of the cabinet body facing a user; the door curtain comprises a towel body and bag bodies, wherein the number of the bag bodies is two, and the two bag bodies are symmetrically fixed at two ends of the towel body; the central axes of the bag body and the towel body are arranged along the extending direction of the door curtain; when gas enters the bag body, the bag body can expand and stretch; when the gas in the bag body is exhausted, the door curtain can be rolled up under the self-memory function; the part of the door curtain below the drawer is fixed with the lower part of the cabinet body, and the lower part of the bag body is communicated with the lower part of the cabinet body through a connecting pipe; one side of the lower end of the bag body, which is far away from the connecting pipe, is communicated with the air inlet end of the Venturi tube; the towel body is rectangular, and the bag body is tubular with two closed ends.

The automatic rolling and stretching of the door curtain are realized; the towel body is rectangular, and the bag body is tubular with a closed opening.

Further, one end of the bag body, which is far away from the connecting pipe, is provided with an exhaust hole; a spring and a gas plug connected with the exhaust hole in a sliding and sealing manner are arranged in the exhaust hole, one end of the spring is fixed on the inner wall of the exhaust hole, and the other end of the spring is fixed on the gas plug; when the air pressure in the bag body exceeds a set value, the air can push the air plug to slide out of the vent hole; when the gas pressure in the bag body is reduced to be lower than a set value, the spring can pull the gas plug to reset.

Automatically discharge the redundant gas in the bag body.

Further, be provided with the filter in the purifying box, the inlet end of filter is provided with filter pulp, drier and active carbon respectively to the end of giving vent to anger.

The gas is filtered to remove dust and bacteria and absorb water and remove odor.

Furthermore, the filter plate is arranged as a drawing plate, the inner wall of the purification box is provided with drawing grooves matched with the filter plate, the direction of the drawing grooves is consistent with the drawing direction of the filter plate, and the number of the drawing grooves is two and is symmetrically distributed on the inner wall of the purification box; the filter is connected with the purifying box in a sliding and sealing manner.

The filter plate is convenient to replace.

Drawings

Fig. 1 is an overall structure diagram of the rolling of the door curtain.

Fig. 2 is an overall structural view of the door curtain when deployed.

Fig. 3 is a schematic view of the door curtain structure.

Fig. 4 is a perspective view of the drawer.

Fig. 5 is an enlarged view of a portion a in fig. 2.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the multifunctional clothes drying cabinet comprises a cabinet body 10, a drawer 11, a handle 12, meshes 13, a limiting plate 14, an ultraviolet lamp 15, a door curtain 20, a towel body 21, a bag body 22, a connecting pipe 23, an exhaust hole 24, a gas plug 25, a spring 26, a Venturi tube 30, a suction pipe 31, a purification box 40, a filter plate 41 and an exhaust fan 50.

The embodiments are substantially as shown in figures 1, 2, 3, 4 and 5:

an archive storage cabinet, as shown in fig. 1, includes a rack, a cabinet 10, and a door curtain 20. Two grating plates are fixed inside the cabinet body 10, and the grating plates divide the cabinet body 10 into an upper space, a middle space and a lower space at equal intervals. Ultraviolet lamps 15 are fixed at the center of the inner top of the cabinet body 10 and the center of the lower end face of the grid plate, and the ultraviolet lamps 15 are used for disinfecting and sterilizing the files. An ultraviolet lamp switch is fixed on the frame.

The cabinet body 10 is internally provided with a drawer 11, the drawer 11 is positioned below the ultraviolet lamp 15, and the drawer 11 is connected with the cabinet body 10 through a sliding rail. The number of the drawers 11 is 3 and the drawers are arranged from top to bottom in sequence. When the drawer 11 is closed, the drawer 11 is sealed with the cabinet 10.

As shown in fig. 4, in order to ensure the air circulation in the cabinet 10, the drawer 11 is provided with meshes 13 in the shape of a regular hexagon on each surface. Because ultraviolet lamp 15 can only shine the surface of object, in order to disinfect the archives better, the event needs to guarantee that the surface of archives is shone by ultraviolet lamp 15 completely, and archives are close together simultaneously and can influence the archives and ventilate, consequently need avoid archives close together, so be fixed with limiting plate 14 in the interior bottom of drawer 11, limiting plate 14's minor face is arranged along vertical direction. The number of the limiting plates 14 is 13, and 14 files can be placed in each drawer 11.

As shown in fig. 1, a handle 12 is fixed to the drawer 11 to facilitate opening and closing of the drawer 11. To facilitate viewing of the contents of the drawer 11, the drawer 11 is made of transparent plastic. Can be smooth when being equipped with archives for making things convenient for drawer 11 and take out and close, the distance of 11 inner bottoms of drawers and 15 lower extremes of ultraviolet lamp sets up to the height 5cm that is greater than archives, saves space on the one hand, and on the other hand avoids archives and 15 distances of ultraviolet lamp to cause the archives to be heated too closely, is unfavorable for the storage of archives.

Since the direct sunlight needs to be avoided during the file storage process, a door curtain 20 is disposed outside the cabinet 10, and the color of the door curtain 20 is set to be black. The door curtain 20 is made of plastic, the door curtain 20 is rolled into the shape of the plastic on the children's dragon mouth whistle, and the door curtain 20 has memory. As shown in fig. 3, the door curtain 20 has a rectangular parallelepiped shape when unfolded, and the door curtain 20 is sized to completely shield the side of the cabinet 10 facing the user. Door curtain 20 includes the towel body 21 and the bag body 22, and the quantity of the towel body 21 sets up to one, and the quantity of the bag body 22 sets up to two and the symmetry is fixed at the left and right sides both ends of the towel body 21. The central axes of the bag body 22 and the towel body 21 are arranged along the vertical direction. The napkin body 21 is rectangular, and the bag body 22 is tubular with a closed mouth.

The door curtain 20 can be kept rolled under the memory function of the door curtain, so that the drawer 11 can be conveniently opened; when a sufficient amount of air enters the pockets 22, the pockets 22 expand and stretch, stretching the door curtain 20 so that the door curtain 20 covers the side of the cabinet 10 facing the user. When the air in the bag body 22 is exhausted, the door curtain 20 will be rolled up under the self-memory function. The principle of rolling and extending the door curtain 20 is similar to the principle of rolling and extending the plastic roll on a children's toy dragon mouth whistle. The rolling direction of the door curtain 20 is set to be away from the cabinet body 10, so that the door curtain 20 can be conveniently rolled.

As shown in fig. 2, the curtain 20 is fixed to the lower portion of the cabinet 10 below the drawer 11, and the lower portion of the bag 22 is connected to the lower portion of the cabinet 10 through a connection pipe 23. The end of the bag body 22 far away from the connecting pipe 23 is provided with a vent hole 24, and the vent hole 24 is cylindrical. As shown in fig. 5, a gas plug 25 and a spring 26 are arranged in the exhaust hole 24, the gas plug 25 is in an inverted cone shape, one end of the spring 26 is fixed at the boundary between the inner wall of the exhaust hole 24 and the inner wall of the bag body 22, and the other end of the spring 26 is fixed at the vertex of the gas plug 25. When the air pressure in the bag body 22 exceeds a certain value, the air can push the air plug 25 to slide out of the vent hole 24; when the gas pressure in the bag body 22 drops below a certain value, the spring 26 will pull the gas plug 25 to reset. The gas plug 25 is similar in principle to a pressure relief valve.

As shown in fig. 2, a venturi tube 30 is further fixed on the frame, and one side of the lower end of the bag body 22 far away from the connecting pipe 23 is communicated with the air inlet end of the venturi tube 30. The throat of the venturi tube 30 is provided with a suction tube 31, the suction tube 31 is connected with an air source through an air pump, the mechanism of the air pump is conventional, and the suction tube 31 is provided with a manual regulating valve. The air source is available, and the air source is air or nitrogen. The end of giving vent to anger of venturi 30 is connected with purifying box 40, and purifying box 40 is fixed in the frame, is provided with filter 41 in the purifying box 40, and the inlet end of filter 41 is provided with filter pulp, drier and active carbon respectively to the end of giving vent to anger, is used for filtering dust and bacterium, absorbs water, removes the flavor respectively. For the convenience change filter 41, filter 41 sets up to take out the board, is provided with on the purifying box 40 inner wall with filter 41 matched with take out the groove, takes out the direction in groove and the direction that filter 41 took out unanimously, and the quantity of taking out the groove sets up to two and symmetric distribution on the inner wall of purifying box 40. The filter plate 41 is slidably and sealingly connected to the purge bin 40.

An exhaust fan 50 is connected to one end of the purifying box 40 far away from the venturi tube 30, the exhaust fan 50 is fixed on the rack, and an outlet of the exhaust fan 50 is communicated with the inner side of the top of the cabinet 10. The frame is also fixed with a frequency modulation switch of the exhaust fan 50, and the frequency modulation switch can adjust the frequency of the exhaust fan 50 from 0 to 50 Hz.

Although ultraviolet rays have the effect of disinfection and sterilization, the files can be damaged by long-time ultraviolet radiation. Therefore, the storage of the file in this embodiment includes three steps:

firstly, ultraviolet disinfection and sterilization. In the initial state, the door curtain 20 is rolled up. After the files are put into the drawer 11, the drawer 11 is closed, the regulating valve is opened, the air pump is connected with air, and the air pump is started. Adjust the frequency modulation switch and make air exhauster 50 bleed air fast, air exhauster 50 passes through purifying box 40 and takes out the inside gas of venturi 30, venturi 30's throat passes through straw 31 inspiration air, the air filters through purifying box 40, it is dry, remove flavor back and then get into cabinet body 10 through air exhauster 50 in, clean dry gas promotes the humid turbid gas in the cabinet body 10 and passes through connecting pipe 23 and get into bag body 22, bag body 22 expands gradually and drives door curtain 20 and upwards extends and cover drawer 11. Since the throat of the venturi tube 30 continuously sucks in air, the amount of air in the bag body 22 increases, and the surplus air is discharged through the exhaust hole 24. When the door curtain 20 is closed, the air inside the cabinet 10 is filtered, dried and deodorized. Since ultraviolet rays may injure the eyes of the human body, the ultraviolet lamp 15 is turned on after the door curtain 20 is used to shield the cabinet 10. At this time, the ultraviolet lamp switch is pressed down, the ultraviolet lamp 15 is turned on, the files are irradiated by the ultraviolet rays, and the files are disinfected and sterilized by the ultraviolet rays. The irradiation time of the ultraviolet lamp 15 is controlled according to the actual situation, and the ultraviolet lamp 15 is turned off immediately after the irradiation is completed. The ultraviolet lamp 15 generates heat during the irradiation process, so that the temperature in the cabinet 10 is raised, the storage of files is not facilitated, and the temperature in the cabinet 10 can be reduced by continuously introducing air into the cabinet 10, so that the files can be stored better.

And secondly, protecting with nitrogen. Nitrogen gas is chemically inert and is commonly used as a preservative. After the disinfection, the drying and the odor removal in the cabinet body 10 are completed, the air pump is stopped, the air pump is connected with nitrogen gas and then started, and the air in the cabinet body 10 is replaced by the nitrogen gas. Since the nitrogen gas will be mixed with the air, the content of the cabinet 10 will not be 100% pure nitrogen gas, but the purity of the nitrogen gas continuously rises to be close to that of the pure nitrogen gas, so as to achieve the expected protection effect. The nitrogen replacement process and the irradiation process of the ultraviolet lamp 15 are carried out simultaneously, so that the time is saved.

The frequency of suction fan 50 is set higher in the two steps in order to lower the temperature inside cabinet 10 by filling cold air into cabinet 10 with an air pump, and in order to quickly replace the air inside cabinet 10.

The third step: after the nitrogen replacement is completed, the frequency of the exhaust fan 50 is reduced to make the bag body 22 just expand to make the door curtain 20 cover the cabinet body 10 and the exhaust hole 24 is blocked by the air plug 25. Then, the regulating valve is closed, and the air pump is stopped, so that the nitrogen in the embodiment circulates in the system.

Since there is still a small amount of oxygen inside the cabinet 10, the process of file preservation still requires ventilation and thus internal circulation.

When the drawer 11 needs to be opened again to take files or place files, the suction fan 50 is closed and the regulating valve is opened, so that the air in the bag body 22 is discharged from the suction pipe 31 under the atmospheric pressure, the door curtain 20 is automatically rolled up, and the drawer 11 can be opened for use.

Because the air is cheap and easy to obtain and the nitrogen is high in cost, the air is adopted for replacement in the ultraviolet lamp irradiation process.

The specific implementation process is as follows:

firstly, ultraviolet disinfection and sterilization. In the initial state, the door curtain 20 is rolled up. After the files are put into the drawer 11, the drawer 11 is closed, the regulating valve is opened, and the air pump is connected into the air. The frequency modulation switch is adjusted to enable the exhaust fan 50 to exhaust air rapidly, the air enters the purifying box 40 through the venturi tube 30 to be filtered, dried and deodorized and then enters the cabinet body 10 through the exhaust fan 50, clean dry air pushes damp turbid air in the cabinet body 10 to enter the bag body 22, and the bag body 22 expands gradually and drives the door curtain 20 to extend upwards to cover the drawer 11. Then, the ultraviolet lamp switch is pressed down, and the files are disinfected and sterilized by ultraviolet rays.

And secondly, protecting with nitrogen. After the disinfection, the drying and the odor removal in the cabinet body 10 are finished, the air pump is connected with nitrogen, and the air in the cabinet body 10 is replaced by the nitrogen. After the sterilization, the ultraviolet lamp 15 is turned off.

The third step: after the nitrogen replacement is completed, the frequency of the exhaust fan 50 is reduced to make the bag body 22 just expand to make the door curtain 20 cover the cabinet body 10 and the exhaust hole 24 is blocked by the air plug 25. Then, the control valve and the air pump were closed to circulate the nitrogen gas in the present embodiment inside the system.

When the drawer 11 needs to be opened again to take files or place files, the suction fan 50 is closed to open the regulating valve, the air in the bag body 22 is discharged from the suction pipe 31 under the atmospheric pressure, the door curtain 20 is automatically rolled up, and the drawer 11 can be opened for use.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a file storage cabinet, includes the frame and the cabinet body, its characterized in that: an ultraviolet lamp is fixed in the cabinet body, and an ultraviolet lamp switch is fixed on the rack; a drawer is arranged in the cabinet body; when the drawer is closed, the drawer and the cabinet body are sealed; the cabinet body is communicated with a Venturi tube fixed on the frame; a suction pipe is arranged at the throat part of the Venturi tube and is connected with an air source through an air pump; the suction pipe is provided with an adjusting valve; the air outlet end of the Venturi tube is connected with a purifying box which is fixed on the frame and can filter, absorb water and remove odor; one end of the purifying box far away from the Venturi tube is connected with an exhaust fan fixed on the frame, and the outlet of the exhaust fan is communicated with the inside of the cabinet body; a frequency modulation switch for controlling the exhaust fan is fixed on the frame; the cabinet body is provided with an exhaust hole; the drawer is made of transparent plastic; a door curtain is arranged outside the cabinet body, and the color of the door curtain is set to be dark; the door curtain is made of plastics, is rolled into a roll, can be kept rolled under the memory function of the door curtain, and is set to be capable of completely shielding one side of the cabinet body facing a user; the door curtain comprises a towel body and bag bodies, wherein the number of the bag bodies is two, and the two bag bodies are symmetrically fixed at two ends of the towel body; the central axes of the bag body and the towel body are arranged along the extending direction of the door curtain; when gas enters the bag body, the bag body can expand and stretch; when the gas in the bag body is exhausted, the door curtain can be rolled up under the self-memory function; the part of the door curtain below the drawer is fixed with the lower part of the cabinet body, and the lower part of the bag body is communicated with the lower part of the cabinet body through a connecting pipe; one side of the lower end of the bag body, which is far away from the connecting pipe, is communicated with the air inlet end of the Venturi tube; the towel body is rectangular, and the bag body is tubular with two closed ends.

2. The archive storage cabinet of claim 1, wherein: one end of the bag body, which is far away from the connecting pipe, is provided with an exhaust hole; a spring and a gas plug connected with the exhaust hole in a sliding and sealing manner are arranged in the exhaust hole, one end of the spring is fixed on the inner wall of the exhaust hole, and the other end of the spring is fixed on the gas plug; when the air pressure in the bag body exceeds a set value, the air can push the air plug to slide out of the vent hole; when the gas pressure in the bag body is reduced to be lower than a set value, the spring can pull the gas plug to reset.

3. The file storage cabinet of claim 2, wherein: a filter plate is arranged in the purification box, and filter cotton, a drying agent and active carbon are arranged from the air inlet end to the air outlet end of the filter plate respectively.

4. The file storage cabinet of claim 3, wherein: the filter plates are arranged as drawing plates, drawing grooves matched with the filter plates are formed in the inner wall of the purification box, the direction of the drawing grooves is consistent with the drawing direction of the filter plates, and the number of the drawing grooves is two and the two drawing grooves are symmetrically distributed on the inner wall of the purification box; the filter is connected with the purifying box in a sliding and sealing manner.