CN108345809B - National economy mobilization potential investigation data protection system - Google Patents
National economy mobilization potential investigation data protection system Download PDFInfo
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- CN108345809B CN108345809B CN201810211372.7A CN201810211372A CN108345809B CN 108345809 B CN108345809 B CN 108345809B CN 201810211372 A CN201810211372 A CN 201810211372A CN 108345809 B CN108345809 B CN 108345809B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
Abstract
The invention provides a national economy mobilization potential investigation data protection system, which comprises a U disk, a bottom shell, a top cover, a driver, a grinding wheel, a pressing sheet, a spring, a wind wheel, a bearing, an air tap spring, a top sheet, a lock catch, a dust cover and a screw, wherein the U disk is arranged on the bottom shell; the bottom shell and the top cover wrap a PCB of the U disk; the bottom of the grinding wheel is provided with a grinding wheel hole in the top cover, and the bottom surface of the grinding wheel is attached to the top surface of the storage chip of the U disk; an annular spring bottom groove is formed in the top surface of the outer ring of the pressing piece, an annular spring top groove is formed in the top surface of the pressing piece cavity of the driver, and the spring is compressed between the spring bottom groove and the spring top groove; the cylinder of the wind wheel is sleeved in the inner ring of the bearing, the top of the cylinder is provided with a plurality of vertically encircling fan blades, and the bottom of the cylinder is provided with triangular columns inserted in triangular holes at the top of the grinding wheel columns; the gas storage chamber of gas storage part is filled with liquid compressed gas, and the outer end of shield is equipped with the spike, inserts the outer end of shield and presses the chamber, and the spike pierces the separation blade, and the wind wheel drives the emery wheel and rotates, grinds the memory chip of USB flash disk into powder to guarantee the security of potential data.
Description
Technical Field
The invention relates to a confidential data protection system, in particular to a national economy mobilization potential investigation data protection system.
Background
The national economy mobilization system is a component part of the national defense mobilization system. Along with the continuous development of national economy in China, the diversification of economic structures, internationalization of economic relations and the internationalization of economic power technology become the main characteristics of the current economic development, and the complicating of the national economy and national defense economy components makes the importance of the national economy mobilization potential investigation work more and more prominent. The investigation work of the national economy mobilization potential is deeply and solidly carried out, the fundamental guarantee of accurately grasping the mobilization potential is the basis of the national economy mobilization work. In potential data investigation work, the security work of data is particularly important.
In order to improve the dynamic management level of potential data and ensure that timely, accurate, safe and reliable potential resources are provided for the emergency of the combat, the potential data needs to be updated and checked in time, and each related department or unit usually takes mobile storage equipment as a medium and reports the potential data to the related departments for statistics and summarization. In order to ensure the safety of the potential data, the data in the mobile storage device storing the potential data needs to be destroyed. However, once the mobile storage device is used, the stored data can be always seen by using the data recovery technology, and the data can be prevented from being recovered only by thoroughly destroying the storage elements on the storage device through a physical or chemical method. The existing method thoroughly destroys the storage hardware for storing the allergy data by using a chemical method of aluminothermic reaction at present, but the chemical method has higher cost and certain danger, and the technology can be mastered by non-ordinary people.
Therefore, a need exists to design a national economy mobilization potential investigation data protection system, thoroughly destroy storage elements on storage equipment by using a simple physical method, solve the problems of incomplete safety protection measures, multiple hidden danger of losing secret and the like of the existing potential investigation data, and have important significance for strengthening the national economy mobilization potential construction and maintaining the national information safety.
Disclosure of Invention
Therefore, in order to protect the data security of each department and enterprises in the process of transmitting data to an economic mobilization department by using mobile storage equipment, the invention provides a national economic mobilization potential investigation data protection system.
The technical scheme adopted by the invention is as follows: the national economy mobilization potential investigation data protection system is characterized in that: the device comprises a U disk, a bottom shell, a top cover, a driver, a grinding wheel, a pressing sheet, a spring, a wind wheel, a bearing, an air tap spring, a top sheet, a lock catch, a dust cover and a screw; is divided into a shell part, a grinding part, a driving part and a gas storage part.
The bottom shell upwards wraps the PCB of the U disk, the top cover downwards covers the top of the PCB of the U disk from the top surface and is opposite to the storage chip on the PCB, a grinding wheel hole is formed in the top cover, and the buckling pins of the top cover are clamped in the buckling holes of the bottom shell; the dustproof cover is sleeved on the USB interface of the USB flash disk, and the structure forms a shell part;
the driver is adhered above the top cover and is opposite to the grinding wheel hole of the top cover, and a grinding wheel cavity, a tabletting cavity, a bearing cavity and an air wheel cavity are sequentially formed from the bottom surface of the driver upwards; the bottom of the grinding wheel is provided with a grinding wheel hole in the top cover, the bottom surface of the grinding wheel is attached to the top surface of the storage chip of the U disk, and the top of the grinding wheel is positioned in the grinding wheel cavity of the driver; the inner ring of the pressing sheet is sleeved on the upright post of the grinding wheel, the bottom of the outer ring of the pressing sheet is uniformly and annularly embedded with a plurality of tapered rollers, and the tapered rollers roll on the top surface of the grinding wheel; an annular spring bottom groove is formed in the top surface of the outer ring of the pressing piece, an annular spring top groove is formed in the top surface of the pressing piece cavity of the driver, the spring is compressed between the spring bottom groove and the spring top groove, and the grinding part is formed by the structure;
the bearing is arranged in a bearing cavity of the driver, and the bottom of the outer ring of the bearing is fixed on the top surface of the tabletting cavity through a screw; the cylinder of the wind wheel is sleeved in the inner ring of the bearing, the top of the cylinder is provided with a plurality of vertically encircling fan blades, the bottom of the cylinder is provided with triangular columns, the triangular columns are inserted into triangular holes in the top of the grinding wheel columns, and the structure forms a driving part;
the inside of the inner end of the driver is provided with a hollow air storage chamber, the top surface of the air storage chamber is provided with a cylindrical shell-shaped air nozzle shell protruding downwards, and two air charging holes are oppositely arranged on the cylindrical surface of the air nozzle shell; the top of the lock catch is of an annular structure, the bottom of the annular structure extends downwards to form two hook legs, and the two hook legs are clamped and embedded in the air charging hole of the air nozzle shell; the bottom of the top piece is a flat column with a flat column shape and is arranged in a top piece cavity in the air tap shell at the lower side of the lock catch; the air tap spring is arranged in the air tap shell and is compressed at the lower side of the top piece;
a fine-pore-shaped air inlet hole is formed between the air storage chamber and the wind wheel cavity, a rectangular pressing cavity is formed on the outer end face of the driver, a fine-pore-shaped air outlet hole is formed between the wind wheel cavity and the pressing cavity, and a sheet-shaped baffle plate is arranged at the tail end of the air outlet hole in the pressing cavity to block the air outlet hole, so that the air storage part is formed;
the air storage chamber of the air storage part is filled with liquid compressed air, the outer end of the dust cover is provided with a spike, the outer end of the dust cover is inserted into the pressing cavity, the spike pierces the baffle, the air is discharged out of the driver through the air inlet hole, the air wheel cavity and the air outlet hole in sequence, the air wheel in the air wheel cavity is driven to horizontally rotate, the air wheel drives the grinding wheel to horizontally rotate, and the storage chip of the U disk is thoroughly ground into powder.
The USB flash disk is common mobile storage equipment in the market and comprises basic elements such as a PCB (printed circuit board), a storage chip, a main control chip, an indicator light and a USB interface.
The bottom shell is cuboid with a rectangular cavity formed in the top, the buckling holes of the bottom shell are formed in the vertical inner wall of the bottom shell, and the position height of the buckling holes is higher than that of the PCB after the PCB of the U disk is placed in the bottom shell.
The top cover is in a cuboid flat plate shape, and a plurality of downward inverted hook-shaped buckling feet are uniformly arranged around the edge of the bottom of the top cover.
The tabletting cavity of the driver is arranged at the top of the grinding wheel cavity, the bearing cavity is arranged at the top of the tabletting cavity, and the wind wheel cavity is arranged at the top of the bearing cavity; the grinding wheel cavity, the tabletting cavity, the bearing cavity and the wind wheel cavity are sequentially communicated and coaxial.
Further, the top surface of preforming chamber encircles the bearing chamber, sets up threaded hole, the outer lane bottom of bearing is equipped with the mounting plate, the screw passes the mounting plate and fixes the bearing outer lane in the bearing chamber.
Balls are embedded between the inner ring and the outer ring of the pressing sheet, and balls are embedded between the inner ring and the outer ring of the bearing.
The tail end of the air inlet hole and the initial end of the air outlet hole of the driver are both deviated to the same side of the wind wheel cavity.
The bottom of the top piece is a flat column with a flat cylinder shape, a vertical cylindrical thimble is arranged at the center of the top surface of the flat column, the thimble upwards penetrates through the annular structure of the lock catch, and the height of the thimble is the same as that of the annular structure.
The annular structure of hasp is installed at the top of the air cock shell of driver, the hook foot inlay card is in the top of aerifing the hole, restricts the top piece and is ejected out the air cock shell by the air cock spring.
The outer end face of the dust cover is provided with a round spike hole, and a conical spike is arranged in the spike hole.
Further, the aperture of the spike hole is larger than the outer diameter of the baffle plate, and the height of the spike hole is the same as the depth of the spike hole.
Further, the cross section shape of the dustproof cover is the same as the shape of the pressing cavity at the outer end of the driver, and when the dustproof cover is embedded into the pressing cavity, the spike of the dustproof cover is just aligned with the baffle plate.
The principle of the invention is as follows: when the air outlet of the compressed air tank is pressed on the lock catch, the air nozzle spring is pressed under the top sheet until the air nozzle spring is exposed out of the air filling hole, and liquid compressed air in the compressed air tank can enter the air storage chamber.
The air storage chamber, the air inlet hole, the wind wheel cavity and the air outlet hole are sequentially communicated, and when the dust cover punctures the baffle plate, air is discharged from the tail end of the air outlet hole, and the air flows through the wind wheel cavity to push the wind wheel to rotate. The triangular column at the bottom of the wind wheel is inserted into the triangular hole at the top of the grinding wheel to drive the grinding wheel to horizontally rotate.
The spring is compressed between the preforming and preforming chamber top surface, and the emery wheel receives the downward pressure of preforming simultaneously at pivoted in-process, and the memory chip on the USB flash disk is ground into powder gradually, and the data in the memory chip can't resume yet.
The national economy mobilization potential investigation data protection system has the following advantages:
(1) The grinding wheel is driven to rotate by utilizing the flow of compressed gas, so that the physical damage of the storage element is realized, and the design is novel;
(2) The structure of the pressing sheet simultaneously comprises balls and tapered rollers, has the function of a bearing, prevents the outer ring from rotating along with the grinding wheel, and ensures the stability of the spring;
(3) The spine structure that is equipped with on the shield realizes the dual function of protection USB interface and opening destruction procedure.
Therefore, the national economy mobilization potential investigation data protection system is provided with the grinding mechanism, when the mobile storage equipment is used up, the grinding mechanism can be started to thoroughly destroy the storage element by simple operation, the problems that the existing potential investigation data safety protection measures are not complete, the hidden danger of leakage is large and the like are solved, and the national economy mobilization potential construction and the national information safety maintenance are enhanced.
Additional features and advantages of the invention will be set forth in the description which follows, or may be learned by practice of the invention.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, like reference numerals being used to refer to like parts throughout the several views.
Fig. 1 is a schematic view of the structure of the head end of the total assembly.
Fig. 2 is a schematic structural view of the tail end of the total assembly.
Fig. 3 is a schematic view showing the dust cap detached from the main assembly.
Fig. 4 is an assembled schematic view of the actuator in a state of being horizontally sectioned along the air path.
Fig. 5 is a schematic view of an assembled structure of the driver at the wind wheel in a state of being horizontally sectioned along the air path.
Fig. 6 is an assembly schematic of the driver in a vertically sectioned state along a front-rear symmetry plane.
Fig. 7 is a schematic view of an assembled structure of the driver at the grinding wheel in a state of being vertically sectioned along the front-rear symmetry plane.
Fig. 8 is a schematic diagram of the driver and the top cover disassembled.
Fig. 9 is a schematic diagram showing the disassembly of the drive assembly, the top cover, the usb disk and the bottom case in a top view.
Fig. 10 is a schematic diagram of an assembly structure of the drive, the top cover, the usb disk, and the grinding wheel in a disassembled state of the bottom case.
Fig. 11 is a schematic view showing the driver assembly, the top cover, the usb disk and the bottom case in a bottom view.
Fig. 12 is a schematic view showing the disassembly of the spring, the pressing piece, the grinding wheel and the USB flash disk.
Fig. 13 is a schematic diagram of the disassembly of springs, tabs, grinding wheels and the usb disk at the memory chip of the usb disk.
Fig. 14 is a schematic top view of the tablet.
Fig. 15 is a schematic view of the bottom surface structure of the tablet.
Fig. 16 is a schematic view of the assembly of the rotor, bearings and drive in a vertical section of the drive along the front-rear plane of symmetry.
Figure 17 is a schematic view of the assembly of the rotor and the bearing.
Fig. 18 is a schematic view of a wind rotor and a bearing disassembled.
Fig. 19 is a schematic view showing an internal structure of the driver in a state of being vertically sectioned along a front-rear symmetry plane.
Fig. 20 is a schematic structural view of the tabletting cavity in a state that the driver is vertically sectioned along the front-rear symmetry plane.
Fig. 21 is a schematic structural view of the pressing chamber in a state where the driver is vertically sectioned along the front-rear symmetry plane.
FIG. 22 is a schematic view of the assembly of parts within the air cap shell with the actuator vertically sectioned along the front-rear plane of symmetry.
FIG. 23 is a schematic structural view of the air cap shell with the actuator vertically sectioned along the front-rear plane of symmetry.
FIG. 24 is a schematic view of the assembled structure of the air cap spring, top piece, and latch.
FIG. 25 is a schematic view showing the air faucet spring, top piece, and lock catch disassembled.
Fig. 26 is a schematic view of the structure of the dust cap.
Fig. 27 is a schematic view of the structure of the dust cap at the puncture.
Reference numerals in the drawings: 1-USB flash disk, 101-PCB board, 102-memory chip, 103-master control chip, 104-pilot lamp, 105-USB interface, 2-bottom shell, 201-snap hole, 3-top cover, 301-snap pin, 302-sand wheel hole, 4-driver, 401-sand wheel cavity, 402-snap plate cavity, 403-spring jack slot, 404-bearing cavity, 405-wind wheel cavity, 406-air reservoir, 407-air inlet, 408-air outlet hole, 409-press cavity, 410-baffle, 411-air cock shell, 412-air charge hole, 413-top plate cavity, 414-lock cavity, 5-sand wheel, 501-wheel, 502-column, 503-triangular hole, 6-snap plate, 601-inner ring, 602-outer ring, 603-ball, 604-tapered roller, 605-spring base slot, 7-spring, 8-wind wheel, 801-fan blade, 802-cylinder, triangular column, 9-bearing, 10-air cock spring, 11-top plate, 1101-flat column, 1102-ejector pin, 12-lock pin, 1201-ring structure, hook-ring structure, 13-hook, 1301-screw, and dust-proof screw 1302.
Detailed Description
The invention relates to a national economy mobilization potential investigation data protection system, which is further described in detail below with reference to the accompanying drawings and the embodiment, wherein the direction description is that a USB interface of a USB flash disk is taken as an inner end, and the opposite is taken as an outer end.
The device comprises a U disk 1, a bottom shell 2, a top cover 3, a driver 4, a grinding wheel 5, a pressing sheet 6, a spring 7, a wind wheel 8, a bearing 9, an air tap spring 10, a top sheet 11, a lock catch 12, a dust cover 13 and a screw 14; is divided into a shell part, a grinding part, a driving part and a gas storage part.
As shown in fig. 1, fig. 2, fig. 3, fig. 8, fig. 9, fig. 10 and fig. 11, the bottom shell 2 wraps up the PCB 101 of the usb disk 1, the top cover 3 covers the top of the PCB 101 of the usb disk 1 from the top surface downwards, and faces the memory chip 102 on the PCB 101, a grinding wheel hole 302 is formed in the top cover 3, and the fastening foot 301 of the top cover 3 is fastened in the fastening hole 201 of the bottom shell 2; the dust cover 13 is sleeved on the USB interface 105 of the USB flash disk 1, and the structure forms a shell part;
as shown in fig. 4, 5, 6, 7, 12, 13, 14 and 15, the driver 4 is adhered above the top cover 3, and is opposite to the grinding wheel hole 302 of the top cover 3, and a grinding wheel cavity 401, a tabletting cavity 402, a bearing cavity 404 and a wind wheel cavity 405 are sequentially formed from the bottom surface of the driver 4 upwards; the wheel 501 at the bottom of the grinding wheel 5 is arranged in the grinding wheel hole 302 of the top cover 3, the bottom surface of the wheel 501 is attached to the top surface of the storage chip 102 of the U disk 1, and the top of the wheel 501 is positioned in the grinding wheel cavity 401 of the driver 4; an inner ring 601 of the pressing sheet 6 is sleeved on the upright post 502 of the grinding wheel 5, a plurality of tapered rollers 604 are uniformly and annularly embedded at the bottom of the outer ring 602 of the pressing sheet 6, and the pressing sheet rolls on the top surface of the grinding wheel 5; an annular spring bottom groove 605 is formed in the top surface of the outer ring 602 of the pressing piece 6, an annular spring top groove 403 is formed in the top surface of the pressing piece cavity 402 of the driver 4, the spring 7 is compressed between the spring bottom groove 605 and the spring top groove 403, and the above structure forms a grinding part;
as shown in fig. 16, 17, 18, 19 and 20, the bearing 9 is installed in a bearing cavity 404 of the driver 4, and the bottom of the outer ring of the bearing 9 is fixed on the top surface of the tabletting cavity 402 through a screw 14; the cylinder 802 of the wind wheel 8 is sleeved in the inner ring of the bearing 9, the top of the cylinder 802 is provided with a plurality of vertically surrounding blades 801, the bottom of the cylinder is provided with triangular columns 803, the triangular columns 803 are inserted into the triangular holes 503 at the top of the upright post 502 of the grinding wheel 5, and the structure forms a driving part;
a hollow air storage chamber 406 is arranged in the inner end of the driver 4, a cylindrical shell-shaped air nozzle shell 411 protruding downwards is arranged on the top surface of the air storage chamber 406, and two air charging holes 412 are oppositely formed in the cylindrical surface of the air nozzle shell 411; the top of the lock catch 12 is an annular structure 1201, and two hook legs 1202 extend downwards from the bottom of the annular structure 1201 and are clamped and embedded in the air charging hole 412 of the air nozzle shell 411; the bottom of the top piece 11 is a flat column 1101 with a flat column shape, and the flat column 1101 is arranged in a top piece cavity 413 in an air tap shell 411 at the lower side of the lock catch 12; the air tap spring 10 is arranged in the air tap shell 411 and is compressed on the lower side of the top piece 11;
as shown in fig. 4, 5, 6, 7, 21, 22, 23, 24 and 25, a fine-pore air inlet hole 407 is formed between the air storage chamber 406 and the wind wheel cavity 405, a rectangular pressing cavity 409 is formed on the outer end surface of the driver 4, a fine-pore air outlet hole 408 is formed between the wind wheel cavity 405 and the pressing cavity 409, and a sheet-shaped baffle 410 is arranged at the tail end of the air outlet hole 408 in the pressing cavity 409 to block the air outlet hole 408, so that the air storage part is formed;
as shown in fig. 16, 21, 26 and 27, the air storage chamber 406 of the air storage part is filled with liquid compressed air, the outer end of the dust cover 13 is provided with a spike 1302, the outer end of the dust cover 13 is inserted into the pressing cavity 409, the spike 1302 pierces the baffle 410, the air is discharged out of the driver 4 through the air inlet hole 407, the air wheel cavity 405 and the air outlet hole 408 in sequence, the air wheel 8 in the air wheel cavity 405 is driven to horizontally rotate, the air wheel 8 drives the grinding wheel 5 to horizontally rotate, and the storage chip 102 of the usb disk 1 is thoroughly ground into powder.
Further, the wheel piece 501 of the grinding wheel 5 is a porous body formed by compacting, drying and sintering an abrasive and a binder.
As shown in fig. 12, the USB disk 1 is a common mobile storage device in the market, and includes basic elements such as a PCB 101, a storage chip 102, a main control chip 103, an indicator light 104, and a USB interface 105.
As shown in fig. 9 and 10, the bottom case 2 is cuboid with a rectangular cavity at the top, the fastening hole 201 of the bottom case 2 is formed on the vertical inner wall of the bottom case 2, and the position of the fastening hole 201 is higher than the position of the PCB board 101 after the PCB board 101 of the U disc 1 is placed in the bottom case 2.
As shown in fig. 9, 10 and 11, the top cover 3 is in a rectangular flat plate shape, and a plurality of downward inverted hook-shaped fastening pins 301 are uniformly arranged around the bottom edge of the top cover 3.
As shown in fig. 20, the tablet cavity 402 of the driver 4 is formed at the top of the grinding wheel cavity 401, the bearing cavity 404 is formed at the top of the tablet cavity 402, and the wind wheel cavity 405 is formed at the top of the bearing cavity 404; the grinding wheel cavity 401, the tabletting cavity 402, the bearing cavity 404 and the wind wheel cavity 405 are sequentially communicated and coaxial.
Further, as shown in fig. 16, 17 and 18, the top surface of the pressing cavity 402 surrounds the bearing cavity 404 and is provided with a threaded hole, the bottom of the outer ring of the bearing 9 is provided with a mounting plate, and the screw 14 passes through the mounting plate to fix the outer ring of the bearing 9 in the bearing cavity 404.
As shown in fig. 14 and 15, the outer ring 602 of the pressing piece 6 has a certain width, balls 603 are inserted between the inner ring 601 and the outer ring 602 of the pressing piece 6, and balls are inserted between the inner ring and the outer ring of the bearing 9.
As shown in fig. 4 and 5, the tail end of the air inlet hole 407 and the initial end of the air outlet hole 408 of the driver 4 are both biased to the same side of the wind wheel cavity 405.
As shown in fig. 22, 23 and 24, the bottom of the top sheet 11 is a flat column 1101 with a flat cylinder shape, a vertical cylindrical thimble 1102 is disposed at the center of the top surface of the flat column 1101, the thimble 1102 passes through the annular structure 1201 of the lock catch 12, and the height of the thimble 1102 is the same as that of the annular structure 1201.
The annular structure 1201 of the lock catch 12 is installed in the lock ring cavity 414 at the inner top end of the air cap shell 411 of the driver 4, and the hook pin 1202 is clamped and embedded at the top end of the inflation hole 412, so that the top piece 11 is limited to be ejected out of the air cap shell 411 by the air cap spring 10.
As shown in fig. 26 and 27, a circular spike hole 1301 is formed in the outer end surface of the dust cap 13, and a tapered spike 1302 is provided in the spike hole 1301.
Further, the diameter of the puncture 1301 is larger than the outer diameter of the baffle 410, and the height of the puncture 1302 is the same as the depth of the puncture 1301.
Further, the cross-sectional shape of the dust cap 13 is the same as the shape of the pressing cavity 409 at the outer end of the driver 4, and when the dust cap 13 is embedded in the pressing cavity 409, the spike 1302 of the dust cap 13 is just aligned with the blocking piece 410.
As shown in fig. 22, 23, 24 and 25, the air cap shell 411, the air charging hole 412, the air cap spring 10, the top sheet 11 and the lock catch 12 are formed into a one-way valve structure, when the air outlet of the compressed air tank is pressed on the lock catch 12, the air cap spring 10 is pressed down by the top sheet 11 until the air charging hole 412 is exposed, and the liquid compressed air in the compressed air tank can enter the air storage chamber 406 because the air pressure in the air tank is larger than the air pressure in the air storage chamber 406.
As shown in fig. 6 and 7, the air storage chamber 406, the air inlet hole 407, the wind wheel cavity 405 and the air outlet hole 408 are sequentially communicated, and when the dust cover 13 pierces the baffle 410, air is discharged from the tail end of the air outlet hole 408, and when the air flows through the wind wheel cavity 405, the wind wheel 8 is pushed to rotate. Triangular pillars 803 at the bottom of the wind wheel 8 are inserted into triangular holes 503 at the top of the grinding wheel 5, so as to drive the grinding wheel 5 to horizontally rotate.
The spring 7 is compressed between the pressing piece 6 and the top surface of the pressing piece cavity 402, the grinding wheel 5 is simultaneously pressed downwards by the pressing piece 6 in the rotating process, the memory chip 102 on the U disk 1 is gradually ground into powder, and data in the memory chip 102 cannot be recovered any more.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (1)
1. The national economy mobilization potential investigation data protection system is characterized in that: the novel air conditioner comprises a U disk (1), a bottom shell (2), a top cover (3), a driver (4), a grinding wheel (5), a pressing piece (6), a spring (7), a wind wheel (8), a bearing (9), an air tap spring (10), a top sheet (11), a lock catch (12), a dust cover (13) and a screw (14); the device comprises a shell part, a grinding part, a driving part and a gas storage part;
the bottom shell (2) is used for wrapping the PCB (101) of the USB flash disk (1) upwards, the top cover (3) downwards covers the top of the PCB (101) of the USB flash disk (1) from the top surface and is opposite to the memory chip (102) on the PCB (101), the top cover (3) is provided with a grinding wheel hole (302), and the buckling pins (301) of the top cover (3) are clamped in the buckling holes (201) of the bottom shell (2); the dustproof cover (13) is sleeved on the USB interface (105) of the USB flash disk (1), and the structure forms a shell part;
the driver (4) is adhered above the top cover (3) and is opposite to the grinding wheel hole (302) of the top cover (3), and a grinding wheel cavity (401), a tabletting cavity (402), a bearing cavity (404) and a wind wheel cavity (405) are sequentially formed in the upward direction from the bottom surface of the driver (4); the wheel piece (501) at the bottom of the grinding wheel (5) is arranged in the grinding wheel hole (302) of the top cover (3), the bottom surface of the wheel piece (501) is attached to the top surface of the storage chip (102) of the U disk (1), and the top of the wheel piece (501) is positioned in the grinding wheel cavity (401) of the driver (4); an inner ring (601) of the pressing sheet (6) is sleeved on the upright post (502) of the grinding wheel (5), a plurality of tapered rollers (604) are uniformly and annularly embedded at the bottom of an outer ring (602) of the pressing sheet (6), and the pressing sheet rolls on the top surface of the grinding wheel (5); an annular spring bottom groove (605) is formed in the top surface of an outer ring (602) of the pressing piece (6), an annular spring top groove (403) is formed in the top surface of a pressing piece cavity (402) of the driver (4), and the spring (7) is compressed between the spring bottom groove (605) and the spring top groove (403), and the structure forms a grinding part;
the bearing (9) is arranged in a bearing cavity (404) of the driver (4), and the bottom of the outer ring of the bearing (9) is fixed on the top surface of the tabletting cavity (402) through a screw (14); the cylinder (802) of the wind wheel (8) is sleeved in the inner ring of the bearing (9), a plurality of vertically encircling fan blades (801) are arranged at the top of the cylinder (802), triangular columns (803) are arranged at the bottom of the cylinder, and the cylinder is inserted into triangular holes (503) at the top of the upright post (502) of the grinding wheel (5), and the structure forms a driving part;
a hollow air storage chamber (406) is arranged in the inner end of the driver (4), a cylindrical shell-shaped air nozzle shell (411) protruding downwards is arranged on the top surface of the air storage chamber (406), and two air charging holes (412) are oppositely formed in the cylindrical surface of the air nozzle shell (411); the top of the lock catch (12) is an annular structure (1201), two hook feet (1202) extend downwards from the bottom of the annular structure (1201), and are clamped and embedded in the air charging hole (412) of the air nozzle shell (411); the bottom of the top piece (11) is a flat column (1101) with a flat column shape, and the flat column is arranged in a top piece cavity (413) in an air tap shell (411) at the lower side of the lock catch (12); the air tap spring (10) is arranged in the air tap shell (411) and is compressed at the lower side of the top piece (11);
a fine-pore-shaped air inlet hole (407) is formed between the air storage chamber (406) and the wind wheel cavity (405), a rectangular pressing cavity (409) is formed on the outer end surface of the driver (4), a fine-pore-shaped air outlet hole (408) is formed between the wind wheel cavity (405) and the pressing cavity (409), and a sheet-shaped baffle (410) is arranged at the tail end of the air outlet hole (408) in the pressing cavity (409) to block the air outlet hole (408), so that the structure forms an air storage part;
the air storage chamber (406) of the air storage part is filled with liquid compressed air, the outer end of the dust cover (13) is provided with a spike (1302), the outer end of the dust cover (13) is inserted into the pressing cavity (409), the spike (1302) pierces the baffle (410), the air is sequentially discharged out of the driver (4) through the air inlet hole (407), the air wheel cavity (405) and the air outlet hole (408), the air wheel (8) in the air wheel cavity (405) is driven to horizontally rotate, the air wheel (8) drives the grinding wheel (5) to horizontally rotate, and the storage chip (102) of the U disk (1) is thoroughly ground into powder;
the bottom shell (2) is cuboid, a rectangular cavity is formed in the top of the bottom shell, a buckling hole (201) of the bottom shell (2) is formed in the vertical inner wall of the bottom shell (2), and after the PCB (101) of the U disk (1) is placed in the bottom shell (2), the position height of the buckling hole (201) is higher than that of the PCB (101);
the top surface of the tabletting cavity (402) surrounds the bearing cavity (404) and is provided with a threaded hole, the bottom of the outer ring of the bearing (9) is provided with a mounting plate, and the screw (14) passes through the mounting plate to fix the outer ring of the bearing (9) in the bearing cavity (404);
the outer ring (602) of the pressing sheet (6) has a certain width, and balls (603) are embedded between the inner ring (601) and the outer ring (602) of the pressing sheet (6);
the tail end of an air inlet hole (407) and the initial end of an air outlet hole (408) of the driver (4) are both biased to the same side of the wind wheel cavity (405);
the annular structure (1201) of the lock catch (12) is arranged in a lock ring cavity (414) at the inner top end of the air nozzle shell (411) of the driver (4), and the hook foot (1202) is clamped and embedded at the top end of the air charging hole (412);
a round spike hole (1301) is formed in the outer end face of the dust cover (13), and a conical spike (1302) is arranged in the spike hole (1301); the aperture of the sharp hole (1301) is larger than the outer diameter of the baffle plate (410), and the height of the sharp hole (1302) is the same as the depth of the sharp hole (1301);
the cross section shape of the dust cover (13) is the same as the shape of the pressing cavity (409) at the outer end of the driver (4), and when the dust cover (13) is embedded into the pressing cavity (409), the spike (1302) of the dust cover (13) is just aligned with the baffle (410).
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| CN201810211372.7A CN108345809B (en) | 2018-03-14 | 2018-03-14 | National economy mobilization potential investigation data protection system |
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| CN201810211372.7A CN108345809B (en) | 2018-03-14 | 2018-03-14 | National economy mobilization potential investigation data protection system |
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| CN108345809B true CN108345809B (en) | 2023-07-28 |
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| CN204029382U (en) * | 2014-08-29 | 2014-12-17 | 金硕澳门离岸商业服务有限公司 | Dismountable memory storage |
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| US7811101B2 (en) * | 2007-03-20 | 2010-10-12 | Kingston Technology Corporation | Retractable memory drive |
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| CN201444404U (en) * | 2008-08-05 | 2010-04-28 | 苗林 | USB memory device capable of being virtualized by computer to multiple hard disks or CD drivers |
| CN101958946A (en) * | 2010-10-18 | 2011-01-26 | 中兴通讯股份有限公司 | Wireless communication terminal |
| CN202043399U (en) * | 2011-03-30 | 2011-11-16 | 杭州安费诺飞凤通信部品有限公司 | USB connecting device capable of bouncing out and opening automatically |
| CN102858115A (en) * | 2011-06-29 | 2013-01-02 | 鸿富锦精密工业（深圳）有限公司 | Universal serial bus device |
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| CN108345809A (en) | 2018-07-31 |
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