CN110245528B - Computer network information safety device - Google Patents

Computer network information safety device Download PDF

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Publication number
CN110245528B
CN110245528B CN201910375957.7A CN201910375957A CN110245528B CN 110245528 B CN110245528 B CN 110245528B CN 201910375957 A CN201910375957 A CN 201910375957A CN 110245528 B CN110245528 B CN 110245528B
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gear
gears
box body
controller
cylinder
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CN110245528A (en
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高永利
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Tangshan Normal University
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Tangshan Normal University
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Priority to CN201910375957.7A priority Critical patent/CN110245528B/en
Publication of CN110245528A publication Critical patent/CN110245528A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/86Secure or tamper-resistant housings
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/88Detecting or preventing theft or loss

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The utility model provides a computer network information safety device, includes the box, and the box right flank is close to upper end department and offers the round hole, and the horizontal cylinder of round hole fit-in installation, cylinder physical stamina lateral shifting and rotation in the round hole, bilateral symmetry set up horizontal inserted bar about the interior terminal surface of round hole, and the left end left side of inserted bar is equipped with the cross axle, the left end and the pressure sensor contact cooperation of cross axle, the external diameter and the number of teeth homogeneous phase of first gear and second gear. When the portable electronic device is used, a user firstly rotates the first gears by random angles respectively, the cylinder needs to be rotated to enable the angle value pointed by the indicating block on the dial to be the same as the angle data of the corresponding first gear, and the inserted rod is overlapped with the through hole in the first gear.

Description

Computer network information safety device
Technical Field
The invention belongs to the field of information security, and particularly relates to a computer network information security device.
Background
At present, the information security mainly comprises the following five aspects, namely, the confidentiality, the authenticity, the integrity, the unauthorized copying and the security of a parasitic system of the information are ensured. The information security itself has a wide range, including how to prevent the leakage of business enterprise secrets, prevent the browsing of bad information by teenagers, the leakage of personal information, etc., but the current computer takes measures in the aspect of information security and mostly adopts software encryption protection, and the protection method has the defect of being cracked, while the physical protection mode is more direct and effective, so that lawless persons can not directly contact with the computer body, and thus the information resources of the computer body can not be obtained.
Disclosure of Invention
The invention provides a computer network information security device, which is used for solving the defects in the prior art.
The invention is realized by the following technical scheme:
a computer network information safety device comprises a box body, wherein a round hole is formed in the right side surface of the box body close to the upper end, a transverse cylinder body is installed in the round hole in a matched mode, the cylinder body can move and rotate in the round hole in a transverse mode, transverse insertion rods are symmetrically arranged on the upper side and the lower side of the inner end surface of the round hole, a transverse shaft is arranged on the left side of the left end of each insertion rod, a transverse rail is arranged on the upper portion of the left end of each transverse shaft, the transverse rails are fixedly installed at the top of the box body, a sliding block is installed at the bottom of each transverse rail in a matched mode through a shaft seat, the left end of each sliding block is fixedly connected with the left end of each transverse rail through a spring, a pressure sensor is arranged at the left end of each transverse shaft, the left end of each transverse shaft is in contact fit with the pressure sensor, a plurality of first gears which are evenly distributed are sleeved on the right, angle sensor all through support fixed mounting on the mounting panel, mounting panel fixed mounting is on the box inner wall, fixed mounting controller in the box, all use the axis as central symmetry to set up two through-holes on the first gear, the distance between two through-hole axes on the same first gear equals with the distance between two inserted bar axes, the inserted bar can insert in the corresponding through-hole, equal fixed mounting of left end one side of one of them through-hole on the same first gear is close the inductor, box external fixed mounting signal transmitter, set up the main frame in the box, fixed mounting electromagnetic switch in the box, electromagnetic switch's one end links to each other with the one end of supplying power cord, the lateral wall that supplies power cord to pass the box, electromagnetic switch's the other end links to each other through being connected the power cord with the main frame, pressure sensor, be close the inductor, angle sensor, A signal transmitter for transmitting a signal to the mobile station, electromagnetic switch all links to each other with the controller, signal transmitter passes through wireless network and links to each other with handheld terminal, be equipped with the display area on the handheld terminal, the outer end fixed mounting annular calibrated scale of round hole, rectangular groove is seted up at the cylinder top, a plurality of evenly distributed's of rectangular inslot fixed mounting instruction piece, the interval of two adjacent instruction pieces equals with the interval of two adjacent first gears, the interval of the first gear right-hand member on rightmost side and annular calibrated scale right-hand member is L, the distance of inserted bar left end face and leftmost instruction piece left end is M, L = M, the transparent groove is all seted up to the position that the box top surface corresponds first gear, the transparent groove that corresponds is located the outside of box is seen through at the top of first gear, evenly set up the angle scale strip on the calibrated scale and be carved with the angle value that corresponds, the box outside sets up the alarm, the alarm links to each other with the controller, the external diameter and the number of teeth.
According to the computer network information safety device, the inner end of the round hole is provided with the limiting ring, the limiting ring is fixedly installed on the column body, and the outer part of the box body is fixedly provided with the USB socket connected with the computer host.
As above a computer network information safety device, the inner downside of round hole be equipped with vertical electric telescopic handle, electric telescopic handle's dead lever lower extreme passes through support fixed connection with the box inner wall, electric telescopic handle's telescopic link upper end fixed mounting U type pole, the outer end lateral part embedding fingerprint identification ware of cylinder, fingerprint identification ware and electric telescopic handle all link to each other with the controller.
According to the computer network information safety device, the indicating block is made of the noctilucent material, and the scale bars on the dial are made of the noctilucent material.
According to the computer network information safety device, the storage battery is arranged at the bottom inside the box body, the side wall of the box body is arranged at a charging port connected with the storage battery, and the pressure sensor, the proximity sensor, the angle sensor, the signal transmitter, the electromagnetic switch and the controller are all connected with the storage battery.
The invention has the advantages that: when the invention is used, a user firstly rotates a plurality of first gears by random angles respectively, the first gears drive corresponding angle sensors to rotate through the meshing with the second gears, the angle sensors measure the rotating angles of the corresponding first gears and transmit data signals to the controller, the controller transmits the rotating angle data of the first gears from right to left to the hand-held terminal through the signal transmitter and displays the rotating angle data on the display area, the hand-held terminal can be equipment such as a smart phone, the combination of the angle data of the first gears from right to left is the password for opening the invention, the user wants to open the invention, the user makes the cylinder extend into the box body, when the indicating block is close to the dial, the cylinder needs to be rotated to make the angle value pointed by the indicating block on the dial be the same as the angle data of the corresponding first gear, at the moment, the inserted rod is superposed with the through hole on the first gear, the cylinder body is continuously extended in, the inserted rod passes through the through holes on the first gear, the operation is carried out according to the principle when the next indicating block is close to the dial, the inserted rod can sequentially pass through the through holes on the plurality of first gears, when the inserted rod is not overlapped with the corresponding through holes in the operation process, the left end of the inserted rod is contacted with the right side surface of the first gear, the inserted rod can provide leftward thrust for the first gear, the thrust drives the transverse shaft to move leftward, the pressure value detected by the pressure sensor is increased and sends an electric signal to the controller, the controller controls the alarm to give an alarm, and simultaneously sends alarm information to the handheld terminal through the signal transmitter, the owner of the invention can timely receive an alarm notification and make proper action through the handheld terminal, when the inserted rod sequentially passes through the through holes on different first gears through correct operation, the plurality of proximity sensors sequentially detect proximity signals and send the signals to the controller, when the controller receives the approach signals of all the approach sensors, the electromagnetic switch is controlled to be closed and powered on, the computer host is powered on and started up, after the use is finished, the computer host is powered off, the cylinder is pulled outwards to the initial position, the power is cut off, the first gears are rotated by random angles respectively, and the password for starting the computer host is changed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of a portion I of FIG. 1; FIG. 3 is an enlarged view of the view from the direction A of FIG. 1; fig. 4 is a schematic structural diagram of the handheld terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A computer network information safety device comprises a box body 1, a round hole 2 is arranged on the right side of the box body 1 close to the upper end, a transverse cylinder 3 is arranged in the round hole 2 in a matched mode, the cylinder 3 can move and rotate in the round hole 2 in a transverse mode, transverse insertion rods 4 are symmetrically arranged on the upper side and the lower side of the inner end face of the round hole 2, a transverse shaft 5 is arranged on the left side of the left end of each insertion rod 4, a transverse rail 6 is arranged on the upper portion of the left end of each transverse shaft 5, the transverse rail 6 is fixedly arranged on the inner top of the box body 1, a sliding block 7 is arranged at the bottom of each transverse rail 6 in a matched mode, each transverse shaft 5 is arranged at the bottom of each sliding block 7 through a shaft seat 8, the left end of each sliding block 7 is fixedly connected with the left end of each transverse rail 6 through a spring 9, a pressure sensor 10 is arranged at the left end of each transverse shaft 5, the left end of each transverse, the second gears 12 are fixedly arranged on a rotating shaft of an angle sensor 13, the second gears 12 are engaged with the corresponding first gears 11, the angle sensors 13 are fixedly arranged on a mounting plate 14 through a support, the mounting plate 14 is fixedly arranged on the inner wall of the box body 1, a controller 15 is fixedly arranged in the box body 1, two through holes 16 are symmetrically arranged on the first gears 11 by taking the central axis as the center, the distance between the axes of the two through holes 16 on the same first gear 11 is equal to the distance between the axes of the two inserted rods 4, the inserted rods 4 can be inserted into the corresponding through holes 16, a proximity sensor 17 is fixedly arranged on one side of the left end of one through hole 16 on the same first gear 11, a signal transmitter 18 is fixedly arranged outside the box body 1, a computer host 19 is arranged in the box body 1, an electromagnetic switch 20 is fixedly arranged in the box body 1, one end of the electromagnetic switch 20 is connected with one end of a power supply, a supply power line 21 penetrates through the side wall of the box body 1, the other end of the electromagnetic switch 20 is connected with a computer host 19 through a connection power line 22, the pressure sensor 10, the proximity sensor 17, the angle sensor 13, the signal emitter 18 and the electromagnetic switch 20 are all connected with a controller 15, the signal emitter 18 is connected with a handheld terminal 32 through a wireless network, a display area 33 is arranged on the handheld terminal 32, an annular dial 23 is fixedly installed at the outer end of the round hole 2, a long groove 24 is formed in the top of the column body 3, a plurality of uniformly distributed indicating blocks 25 are fixedly installed in the long groove 24, the distance between every two adjacent indicating blocks 25 is equal to the distance between every two adjacent first gears 11, the distance between the right end of the rightmost first gear 11 and the right end of the annular dial 23 is L, the distance between the left end face of the inserted link 4 and the left end of the leftmost indicating block 25 is M, L = M, transparent grooves 26 are formed in positions, the top of first gear 11 sees through corresponding penetrating groove 26 and is located the outside of box 1, evenly sets up the angle scale bar on the calibrated scale 23 and carves corresponding angle value, and the box 1 outside sets up alarm 34, and alarm 34 links to each other with the controller, and the external diameter and the number of teeth of first gear 11 and second gear 12 are all the same. When the invention is used, a user firstly rotates a plurality of first gears 11 by random angles respectively, the first gears 11 drive corresponding angle sensors 13 to rotate through meshing with second gears 12, the angle sensors 13 measure the rotating angles of the corresponding first gears 11 and transmit data signals to a controller 15, the controller 15 transmits the rotating angle data of a plurality of first gears 11 from right to left to a handheld terminal 32 through a signal emitter 18 and displays the rotating angle data on a display area, the handheld terminal can be a smart phone and other equipment, the combination of the angle data of a plurality of first gears 11 from right to left is the password for opening the invention, the user extends a cylinder 3 into a box body 1 to open the invention, when an indicating block 25 is close to a dial 23, the cylinder 3 needs to be rotated to enable the angle value pointed by the indicating block 25 on the dial 23 to be the same as the angle data of the corresponding first gears 11, at the moment, the inserted link 4 coincides with the through hole 16 on the first gear 11, the cylinder 3 is continuously inserted, the inserted link 4 passes through the through hole 16 on the first gear 11, the operation is carried out according to the principle when the next indicating block 25 approaches the dial 23, the inserted link 4 can sequentially pass through the through holes 16 on the plurality of first gears 11, when the inserted link 4 does not coincide with the corresponding through hole 16 in the operation process, the left end of the inserted link 4 is contacted with the right side surface of the first gear 11, the inserted link 4 can provide leftward thrust for the first gear 11, the thrust drives the transverse shaft 5 to move leftward, the pressure value detected by the pressure sensor 10 is increased and sends an electric signal to the controller, the controller controls the alarm to give an alarm and simultaneously sends the alarm information to the handheld terminal 32 through the signal transmitter 18, and the owner of the invention can timely receive the alarm notification and make appropriate action through the handheld terminal 32, when a user correctly operates to enable the inserted rod 4 to sequentially pass through the through holes 16 on different first gears 11, the plurality of proximity sensors 17 sequentially detect proximity signals and send the signals to the controller, when the controller receives the proximity signals of all the proximity sensors 17, the electromagnetic switch 20 is controlled to be closed and powered on, the computer host 19 is powered on and started, after the use is completed, the computer host is shut down, the cylinder 3 is pulled outwards to the initial position, the power is cut off, the plurality of first gears 11 are respectively rotated by random angles again, and the password for opening the invention is changed at the moment. Compared with the traditional physical protection mode, the opening mode of the invention is more difficult to crack and open, and is safer.
Specifically, as shown in the figure, the inner end of the circular hole 2 described in this embodiment is provided with a limit ring 27, the limit ring 27 is fixedly installed on the cylinder 3, and the outside of the box 1 is fixedly installed with a USB socket connected with the computer host 19. After the use of the device is finished, when the user pulls the cylinder 3 to reset, the limiting ring 27 can prevent the cylinder 3 from being pulled out completely, and can play a limiting role; the USB interface is convenient for a user to copy files in the computer mainframe, and the files in the computer mainframe cannot be copied through the USB interface when the computer mainframe is not electrified.
Specifically, as shown in the figure, this embodiment the inner downside of round hole 2 be equipped with vertical electric telescopic handle 28, electric telescopic handle 28's dead lever lower extreme and 1 inner walls of box pass through support fixed connection, electric telescopic handle 28's telescopic link upper end fixed mounting U type pole 29, the outer end lateral part embedding fingerprint identification ware 30 of cylinder 3, fingerprint identification ware 30 and electric telescopic handle 28 all link to each other with the controller. When the invention is in an initial unused state, the electric telescopic rod 28 is in an extended state, the upper end of the U-shaped rod 29 is positioned at the left end of the column body 3, the inserted rod 4 positioned at the lower part is positioned inside the U-shaped rod 29, at this time, the column body 3 cannot extend into and rotate towards the inside of the box body 1 under the limit of the U-shaped rod 29, when a user uses the electric telescopic rod, firstly, fingerprint identification is carried out through the fingerprint identifier 30, the fingerprint identifier 30 scans the fingerprint of the user, when the fingerprint is matched with the fingerprint recorded in advance, the controller controls the electric telescopic rod 28 to shrink, the U-shaped rod moves downwards along with the electric telescopic rod, the limit of the column body 3 and the inserted rod 4 is released, and then the next operation is carried out, and the safety of the electric telescopic rod can.
Further, as shown in the figure, the indication block 25 of the present embodiment is made of a noctilucent material, and the scale bars on the scale disc 23 are made of a noctilucent material. The invention can be conveniently operated in a poor light environment through the design.
Furthermore, as shown in the figure, a storage battery 31 is disposed at the bottom inside the box 1 according to the embodiment, the side wall of the box 1 is disposed at a charging port connected to the storage battery 31, and the pressure sensor 10, the proximity sensor 17, the angle sensor 13, the signal transmitter 18, the electromagnetic switch 20, and the controller 15 are all connected to the storage battery 31. By the design, the power supply wire 21 is only required to be connected with the electromagnetic switch 20, so that the distribution of the power supply wire can be reduced, and the installation difficulty can be reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (5)

1. A computer network information security device, characterized by: comprises a box body (1), a round hole (2) is arranged on the right side surface of the box body (1) close to the upper end, a transverse cylinder (3) is arranged in the round hole (2) in a matching way, the cylinder (3) can transversely move and rotate in the round hole (2), transverse inserted rods (4) are symmetrically arranged on the upper side and the lower side of the inner end surface of the round hole (2), a transverse shaft (5) is arranged on the left side of the left end of each inserted rod (4), a transverse rail (6) is arranged on the upper portion of the left end of the transverse shaft (5), the transverse rail (6) is fixedly arranged on the inner top of the box body (1), a sliding block (7) is arranged at the bottom of the transverse rail (6) in a matching way, the transverse shaft (5) is arranged at the bottom of the sliding block (7) through a shaft seat (8), the left end of the sliding block (7) is fixedly connected with the left end of the transverse rail (6) through a spring, the right part of cross axle (5) passes through first gear (11) of a plurality of evenly distributed of bearing suit, the downside of first gear (11) all sets up second gear (12), the equal fixed mounting of second gear (12) is in the pivot of angle sensor (13), second gear (12) and the meshing cooperation of first gear (11) that corresponds, angle sensor (13) all pass through support fixed mounting on mounting panel (14), mounting panel (14) fixed mounting is on box (1) inner wall, fixed mounting controller (15) in box (1), all use the axis to set up two through-hole (16) as central symmetry on first gear (11), the distance between two through-hole (16) axes on same first gear (11) equals with the distance between two inserted bar (4) axes, inserted bar (4) can insert in corresponding through-hole (16), the equal fixed mounting of left end one side of one of them through-hole (16) on same first gear (11) is close to the inductor (17) The device comprises a box body (1), a signal emitter (18) is fixedly installed on the outer portion of the box body (1), a computer host (19) is arranged in the box body (1), an electromagnetic switch (20) is fixedly installed in the box body (1), one end of the electromagnetic switch (20) is connected with one end of a supply power line (21), the supply power line (21) penetrates through the side wall of the box body (1), the other end of the electromagnetic switch (20) is connected with the computer host (19) through a connection power line (22), a pressure sensor (10), a proximity sensor (17), an angle sensor (13), the signal emitter (18) and the electromagnetic switch (20) are connected with a controller (15), the signal emitter (18) is connected with a handheld terminal (32) through a wireless network, a display area (33) is arranged on the handheld terminal (32), an annular dial (23) is fixedly installed on the outer end of a round hole (2), a long groove (24, a plurality of evenly distributed indicating blocks (25) are fixedly installed in the long groove (24), the distance between every two adjacent indicating blocks (25) is equal to the distance between every two adjacent first gears (11), the distance between the right end of the rightmost first gear (11) and the right end of the annular dial (23) is L, the distance between the left end surface of the inserted link (4) and the left end of the leftmost indicating block (25) is M, L = M, through grooves (26) are formed in positions, corresponding to the first gears (11), of the top surface of the box body (1), the tops of the first gears (11) penetrate through the corresponding through grooves (26) and are located outside the box body (1), angle scale strips are evenly arranged on the dial (23) and are engraved with corresponding angle values, an alarm (34) is arranged outside the box body (1), the alarm (34) is connected with a controller, and the outer diameters and the tooth numbers of the first gears (11) and the second gears (12) are the same; when the device is used, firstly, the first gears rotate at random angles respectively, the first gears drive the corresponding angle sensors to rotate through the meshing with the second gears, the angle sensors measure the rotating angles of the corresponding first gears and transmit data signals to the controller, the controller transmits the rotating angle data of the first gears from right to left to the handheld terminal through the signal transmitter and displays the rotating angle data on the display area, the combination of the angle data of the first gears from right to left is the password for opening the device, a user extends the cylinder into the box body, when the indicating block is close to the dial, the cylinder needs to be rotated to ensure that the angle value pointed by the indicating block on the dial is the same as the angle data of the corresponding first gear, at the moment, the inserted rod is superposed with the through hole on the first gear, the cylinder continues to extend, and the inserted rod passes through the through hole on the first gear, when the next indicating block is close to the dial, the operation is carried out according to the principle, the inserting rods can sequentially penetrate through the through holes in the first gears, when the inserting rods are not overlapped with the corresponding through holes in the operation process, the left ends of the inserting rods are in contact with the right side faces of the first gears, the inserting rods can provide leftward thrust for the first gears, the thrust drives the transverse shafts to move leftward, the pressure value detected by the pressure sensor is increased and sends an electric signal to the controller, the controller controls the alarm to give an alarm, and meanwhile, the signal transmitter sends alarm information to the handheld terminal; when the user makes the inserted bar pass the through-hole on the different first gear in proper order through the correct operation, a plurality of is close the inductor and detects in proper order and is close the signal and send the controller with the signal, control electromagnetic switch closed circular telegram when the controller receives all proximity signal that are close the inductor, computer host computer circular telegram and start this moment, after the use is accomplished, computer host computer shuts down, outwards stimulates the cylinder to initial position, the device outage, rotate random angle respectively with a plurality of first gear once more, the password that opens the device this moment changes.
2. The computer network information security device of claim 1, wherein: the inner of round hole (2) set up spacing ring (27), spacing ring (27) fixed mounting is on cylinder (3), the outside fixed mounting of box (1) and the continuous USB socket of main frame (19).
3. The computer network information security device of claim 1, wherein: the inner downside of round hole (2) be equipped with vertical electric telescopic handle (28), the dead lever lower extreme and box (1) inner wall of electric telescopic handle (28) pass through support fixed connection, telescopic link upper end fixed mounting U type pole (29) of electric telescopic handle (28), the outer end lateral part embedding fingerprint identification ware (30) of cylinder (3), fingerprint identification ware (30) and electric telescopic handle (28) all link to each other with the controller.
4. The computer network information security device of claim 1, wherein: the indicating block (25) is made of a noctilucent material, and the scale strips on the dial (23) are made of the noctilucent material.
5. The computer network information security device of claim 1, wherein: the intelligent charging box is characterized in that a storage battery (31) is arranged at the bottom inside the box body (1), the side wall of the box body (1) is arranged at a charging port connected with the storage battery (31), and the pressure sensor (10), the proximity sensor (17), the angle sensor (13), the signal transmitter (18), the electromagnetic switch (20) and the controller (15) are all connected with the storage battery (31).
CN201910375957.7A 2019-05-07 2019-05-07 Computer network information safety device Active CN110245528B (en)

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Application Number Priority Date Filing Date Title
CN201910375957.7A CN110245528B (en) 2019-05-07 2019-05-07 Computer network information safety device

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Application Number Priority Date Filing Date Title
CN201910375957.7A CN110245528B (en) 2019-05-07 2019-05-07 Computer network information safety device

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CN110245528B true CN110245528B (en) 2020-12-15

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CN2216567Y (en) * 1994-03-22 1996-01-03 彭程恒 Puzzle lock
CN101575920A (en) * 2008-05-06 2009-11-11 龚道宽 Device for improving theftproof performance of mechanical coded lock
CN109488113A (en) * 2019-01-10 2019-03-19 郑志文 Intercept type mechanical coaxial Rotary puzzle lock
CN208673334U (en) * 2018-08-06 2019-03-29 王俊芹 Information security of computer network control device

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DE19651771C1 (en) * 1996-12-12 1998-04-16 Trw Fahrzeugelektrik Absolute value rotary sensor for motor vehicle steering angle
CN103291139A (en) * 2012-02-28 2013-09-11 肖守宇 Electron-assisted control code night lock with automatic warning device
CN203163713U (en) * 2013-02-28 2013-08-28 三一重型装备有限公司 Rotation angle detection device and engineering machine
CN207550831U (en) * 2017-11-28 2018-06-29 郑州航空工业管理学院 Cold Chain Logistics case based on wireless communication
CN108345245A (en) * 2018-02-23 2018-07-31 长安大学 A kind of pre-warning system for monitoring of beam car
CN208522875U (en) * 2018-08-24 2019-02-19 龙泉市恒创数码科技有限公司 The hidden witness of court's trial dynamic testifies host

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2216567Y (en) * 1994-03-22 1996-01-03 彭程恒 Puzzle lock
CN101575920A (en) * 2008-05-06 2009-11-11 龚道宽 Device for improving theftproof performance of mechanical coded lock
CN208673334U (en) * 2018-08-06 2019-03-29 王俊芹 Information security of computer network control device
CN109488113A (en) * 2019-01-10 2019-03-19 郑志文 Intercept type mechanical coaxial Rotary puzzle lock

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