Computer interface safety device capable of preventing computer data output

Abstract

The invention discloses a computer interface safety device capable of preventing computer data output. The computer interface safety device comprises a USB lock and a key. After a user inserts the lock head into the USB port, the hook and the sliding block are arranged in the lock head, and the hook can be popped out under the driving of the pressure of the spring and clamped into the gap of the elastic sheet of the USB port; a key head of a key part of the device corresponds to the shape of a lock hole of a lock cylinder, so that the device can be opened only by a specific key, after a user unlocks the key through a fingerprint module on the key, the fingerprint module supplies power to a coil, the key head generates magnetic force and attracts and pulls a metal block in the lock hole, and then a hook in the lock head can be unlocked. According to the device, through a physical locking mechanism, unauthorized USB equipment is prevented from being connected to a computer, so that data leakage or malicious virus propagation is effectively avoided; a layer of biological recognition safety measure is added to the fingerprint module arranged on the device, only a verified user can unlock and use the USB interface, and the risk that data are illegally accessed is greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of computer interface security, and in particular relates to a computer interface security device capable of preventing computer data from being output. Background Art

[0002] In modern computer systems, the security of USB interfaces is becoming more and more important. With the popularity of USB devices, the security threats they bring are also increasing, including virus infection, data leakage, virus attacks, etc. In order to deal with these threats, a series of technical measures have been taken to enhance the security of USB interfaces.

[0003] Generally speaking, by disabling the automatic operation function of the USB interface in the motherboard BIOS system, viruses and malware can be prevented from being automatically executed through USB devices, thereby preventing unauthorized USB devices from accessing. However, entering the BIOS system to modify the serial port requires the operator to have a certain computer foundation, and modifying the BIOS requires restarting the computer. In the case of multiple computers such as school computer rooms, it is time-consuming and labor-intensive to modify the computers one by one, and this protection method cannot protect against intruders who have mastered this technology.

[0004] In order to protect the USB port more effectively and conveniently, it is necessary to use hardware protection security equipment, which completely occupies the USB port on the computer case or motherboard, so that the intruder can no longer connect other devices to the USB port on the computer case or motherboard. At present, there are some USB port hardware protection security devices on the market, such as the patent with patent publication number CN110955303A, which discloses a USB port blocking device. When the blocking device is inserted into the USB port, the locking wheel rolls to the outer edge and extends out of the blocking hole to press the side surface of the USB port to lock the blocking block. Because there is a limiting mechanism, the locking wheel can only roll when entering and cannot rotate when pulling out. Therefore, the blocking block can form a physical block to the USB port, basically preventing virus infection and loss of important information by external intruders, and has high reliability. When using it again, move the two rollers out of the blocking hole to pull out the blocking device.

[0005] It can be seen that the device mainly locks the port by the friction of the roller on the side wall of the USB port. However, considering the limited size of the USB port, if the internal structure of the device in the invention is used for actual conversion and production, the size of the internal shaft is very small, so its strength will be relatively low, and the pressing force that can be applied to the roller is also relatively limited, so it cannot achieve a good locking effect. Now there is a need for a computer interface security device that can prevent computer data output. The device prevents intruders from reading and writing files inside the computer by occupying the computer port. The device is divided into two parts: a lock and a key. After the lock is inserted into the computer USB port, there is a hook inside the lock that can hook the gap of the shrapnel inside the USB, so that the lock cannot be taken out. The lock can only be unlocked by using a special key and obtaining fingerprint recognition. Summary of the invention

[0006] In order to solve the above technical problems, the present invention designs a computer interface security device that can prevent computer data output. The device is divided into two parts: a lock and a key. After the user inserts the lock into the USB port, a hook inside the lock will pop out under the pressure of the spring, and the hook will be stuck in the gap of the USB spring piece; a lock shell is arranged inside the lock, and a lock core with a lock hole is rotatably arranged inside the lock shell, and a metal block connected to the hook connecting rod is arranged inside the lock shell; in addition, the key head of the key part of the device corresponds to the shape of the lock core hole to ensure that the device can only be rotated to open with a specific key. The key head is made of metal, and a coil is wound on the internal cylindrical metal rod. When the user unlocks the key through the fingerprint module on the key, the coil inside the device is energized, and the key head generates magnetic force, and attracts and pulls the metal block inside the lock shell to unlock the hook inside the lock.

[0007] In order to achieve the above technical effects, the present invention discloses a computer interface security device capable of preventing computer data from being output, comprising: a USB lock, a key, and a baffle; The USB lock includes: a USB head, a hook, a slider, a spring, a buckle, a metal block, a shell, a lock shell, and a lock core; A hook-shaped structure is fixedly provided at the upper end of one side of the hook, a shaft hole is provided at the middle bottom of the hook, and an inclined slide groove is provided at the end of the hook; the hook is rotatably connected to the USB head through the shaft hole; The two ends of the slider are provided with cylindrical end caps, the slider is slidably installed inside the USB head, and the cylindrical end caps are slidably matched in the oblique slide groove of the hook; the end of the slider is fixedly connected to the spring; the buckle is fixedly connected to the slider, and the metal block is fixedly installed inside the buckle; one end of the shell is fixedly connected to the USB head, and the other end of the spring is fixedly connected to the inside of the shell; the lock shell is fixedly connected to the bottom of the shell, and the lock core is rotatably installed inside the lock shell; The key comprises: a key head, a coil, and a fingerprint module; the coil is wound around the metal rod of the key head, and the coil is electrically connected to the fingerprint module; Furthermore, the top of the USB head is similar in shape to a USB interface, with two square hollows on the top, and hook slots at the ends of the square hollows; Furthermore, a lock shell hole is provided inside the lock shell, and a lock core hole is provided inside the lock core. The shape of the lock core hole is the same as the shape of the key head. Only when a key head of a proper shape is inserted into the lock core hole can the lock core be rotated and the key head can be aligned with the lock shell hole. Furthermore, the fingerprint module includes: a capacitive fingerprint reader, a control board, and a battery; Furthermore, a circle of bosses is fixedly provided on the outer side of the shell, and the baffle is detachably installed on the inner side of the bosses of the shell.

[0008] The beneficial effects of the present invention are: The invention discloses a computer interface security device capable of preventing computer data from being output, comprising: a USB lock head and a key; after a user inserts the lock head into a USB port, a hook and a slider are arranged inside the lock head, and the hook is ejected under the pressure of a spring and is stuck in the gap of a shrapnel of the USB port; a lock hole is arranged at the bottom of the lock head, and a buckle and a metal block connected to a hook connecting rod are arranged inside the lock hole; in addition, a key head of a key part of the device corresponds to the shape of a lock core lock hole, so as to ensure that the lock core can be rotated only with a specific key, so that the key head can correspond to the metal block of the buckle, the key head is made of metal, and a coil is wound on an internal cylindrical metal rod, and when a user unlocks the key through a fingerprint module on the key, the fingerprint module supplies power to the coil, the key head generates magnetic force, and attracts and pulls the metal block on the buckle inside the lock shell, so as to unlock the hook inside the lock head.

[0009] This device uses a physical locking mechanism to prevent unauthorized USB devices from accessing the computer, thereby effectively avoiding data leakage or the spread of malicious viruses; the device requires a key of a specific shape to unlock the lock cylinder, so that the metal block can be attracted by magnetism; in addition, the fingerprint module equipped in the device adds a layer of biometric security measures, and only verified users can unlock and use the USB interface, which greatly reduces the risk of illegal access to data. In addition, users only need to pass fingerprint verification to unlock, which not only simplifies the operation process, but also improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following briefly introduces the drawings required for describing the embodiment.

[0011] Figure 1 It is a schematic diagram of the structure of a computer interface security device that can prevent computer data from being output; Figure 2 is another structural schematic diagram of a computer interface security device capable of preventing computer data from being output; Figure 3 It is a schematic diagram of the internal structure of a computer interface security device in a locked state that prevents computer data output; Figure 4 It is a schematic diagram of the internal structure of a computer interface security device in an unlocked state that prevents the output of computer data; Figure 5 It is a schematic diagram of the structure of a computer interface security device in a locked state that can prevent computer data output; Figure 6 A schematic diagram of the structure of a hook of a computer interface safety device that can prevent computer data from being output; Figure 7 It is a schematic diagram of the structure of a drawstring of a computer interface safety device that can prevent the output of computer data; Figure 8 A schematic diagram of the structure of a lock housing of a computer interface security device that can prevent computer data from being output; Fig. 9 It is a schematic diagram of the structure of a lock cylinder of a computer interface security device that can prevent computer data output; Fig.10 It is a schematic diagram of the structure of a computer interface safety device (test) that can prevent the output of computer data; Fig.11 is another structural schematic diagram of a computer interface safety device (test) capable of preventing computer data output; Fig.12 It is a schematic diagram of the internal structure of a computer interface safety device (test) in a locked state that can prevent computer data output; Fig.13 It is a schematic diagram of the internal structure of a computer interface safety device (test) in the unlocked state that can prevent the output of computer data; Fig.14 It is a schematic diagram of the structure of a hook of a computer interface safety device (test) capable of preventing the output of computer data; Fig.15 A schematic diagram of the structure of a computer interface safety device that can prevent computer data output when a baffle is used; In the accompanying drawings, the components represented by the reference numerals are listed as follows: USB port, 2-USB lock head, 3-key, 4-baffle, 101-shrapnel, 201-USB head, 202-hook, 203-slider, 204-spring, 205-pull buckle (test), 206-metal block (test), 207-housing, 208-lock shell (test), 209-lock hole (test), 2010-cylindrical end, 2011-oblique slide groove, 2012-pull buckle, 2013-metal block, 2014-lock shell, 2015-lock core, 2016-lock shell hole, 2017-lock core hole, 2018-hook slot, 301-key head (test), 302-coil, 303-fingerprint module, 304-key head. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1

[0013] The present invention discloses a computer interface security device capable of preventing computer data output, comprising: a USB lock 2 and a key 3; the USB lock 2 comprises: a USB head 201, a hook 202, a slider 203, a spring 204, a buckle 2012, a metal block 2013, a shell 207 and a lock shell 2014.

[0014] like Figures 1 to 9 As shown, a hook-shaped structure is provided at the upper end of the hook 202, and a shaft hole is provided at the middle bottom of the hook 202, so that the hook 202 can be rotatably connected to the USB head 201 through the shaft hole, and an inclined slide groove 2011 is provided at the end of the hook 202. Cylindrical end caps 2010 are provided at both ends of the slider 203, and the slider 203 can slide inside the USB head 201, and its cylindrical end cap 2010 can slide with the inclined slide groove 2011 of the hook 202. When the slider 203 moves outward, the hook-shaped structure of the hook 202 moves downward through the cooperation of the cylindrical end cap 2010 and the inclined slide groove 2011; when the slider 203 moves inward, the hook-shaped structure of the hook 202 moves upward through the cooperation of the cylindrical end cap 2010 and the inclined slide groove 2011; The end of the slider 203 is fixedly connected to the spring 204, the buckle 2012 is fixedly connected to the slider 203, and the metal block 2013 is fixedly installed inside the buckle 2012. One end of the shell 207 is fixedly connected to the USB head 201, the other end of the spring 204 is fixedly connected to the inside of the shell 207, and the lock shell 2014 is fixed to the bottom of the shell 207. A lock core 2015 is rotatably installed inside the lock shell 2014. The lock core is the prior art. By inserting a key into the lock core hole 2017, only a key head 304 that meets the requirements can rotate the lock core and align the lock core hole 2017 with the lock shell hole 2016, so that the key head 304 can align with the metal block 2013 inside the lock shell hole 2016.

[0015] The key 3 includes a key head 301, a coil 302 and a fingerprint module 303. The coil 302 is tightly wound around the metal rod of the key head 301 and is electrically connected to the fingerprint module 303. The top of the USB head 201 is designed with two square hollows, and each end of the hollow is provided with a hook slot 2012 to provide space for the hook; Example 2

[0016] In this embodiment, in order to enhance security, a lock core hole 2017 is specially provided at the bottom of the lock housing 2014, and the shape of the lock core hole 2017 matches the shape of the key head 301. It is ensured that only a specific key head 301 that completely matches the shape of the lock core hole 2017 can be inserted into and unlock the lock, thereby providing additional physical security protection.

[0017] The fingerprint module 303 on the key 3 is another key component of the security device. It consists of several core components: a capacitive fingerprint reader, a control board, and a battery. The capacitive fingerprint reader is used to read and verify the user's fingerprint. It is a relatively mature existing technology that can provide high-precision recognition to ensure that only pre-registered fingerprints can unlock the device. The control board is responsible for processing the data from the fingerprint reader and controlling the power supply of the coil 302 to generate the magnetic force required for unlocking. The battery provides the necessary power for the entire fingerprint module 303.

[0018] When in use, the user must first authenticate through the fingerprint module 303 on the key 3, and then the coil 302 will be energized to generate magnetic force on the key head 3 to achieve the function of unlocking the key 3. The magnetic force of the key head 301 is sufficient to attract and pull the metal block 2013 inside the lock core hole 2017, thereby unlocking the hook 202 inside the lock head. The device combines the physical locking mechanism and biometric technology, not only preventing unauthorized USB devices from accessing the computer, but also adding an extra layer of security protection through the fingerprint module 303, ensuring that only authenticated users can unlock the key 3 and use the USB interface.

[0019] This design not only improves security, but also provides users with a fast and convenient way to unlock through biometric technology. The user only needs to place a finger on the fingerprint module 303. If the fingerprint matches, the control board will activate the coil 302 to generate magnetic force, thereby attracting the metal block 2013 in the lock core hole 2017 to unlock. The whole process is fast and safe, greatly improving the user experience while ensuring data security. Example 3

[0020] In this embodiment, when the device is actually converted and produced, since the lock shell 2014 and the shell 207 are manufactured separately, different shapes of lock core holes 217 and different shapes of key heads 301 can be designed as needed. This modular production method simplifies inventory management, because the manufacturer can store a variety of lock shells 2014 and key heads 301 of different shapes and quickly assemble them into final products according to order requirements. In order to further improve efficiency and reduce costs, multiple USB lock heads 2 with the same lock core 215 can be produced as needed, which means that a single key 3 can unlock multiple lock heads. This unified key 3 design not only reduces the trouble of managing multiple keys 3, but also reduces the risk of losing or confusing the key 3. Users only need to carry one key 3 to easily manage all protected USB ports 1. In addition, the design of the unified key 3 also brings cost advantages. For enterprises and institutions that need to use a large number of USB lock heads 2, it is not necessary to equip each lock head with a key 3 separately, which greatly reduces the cost of procurement and maintenance. At the same time, this design also makes it easier and more economical to replace or update the key 3 when needed. Example 4

[0021] In this embodiment, the size of the USB lock 2 is compact and suitable for the common USB port 1 configuration on a modern computer case or motherboard. Considering that a general computer is equipped with at least 2 ports, and up to 8 or more, each port needs to be installed with a USB lock 2 to ensure data security. Therefore, it is necessary to ensure that its lateral volume is small enough to avoid mutual interference. The small lateral volume means that even next to closely arranged USB ports 1, adjacent USB locks 2 can be installed without colliding with each other or hindering use.

[0022] If the USB ports on the chassis are arranged too compactly, a baffle 4 may be installed on the housing 207 of the device. Fig.15 As shown, the USB port near the USB port where the device is installed is blocked by the baffle 4, thereby achieving a disabling effect. Example 5

[0023] At the beginning of the design of this device, Figures 10 to 14As shown, a lock core is not arranged inside the lock shell part of the device, and the device is unlocked by matching the shape of the key head 301 with the shape of the lock hole 209 inside the lock shell 208. It is found during use that the gap of the lock hole 209 is relatively large, and the metal block 206 of the buckle 205 can be directly touched through the lock hole 209 from the outside, which poses a risk of being cracked. Therefore, a lock core 2015 is arranged inside the lock shell 214, and only a suitable key 304 can rotate the lock core, so that the key head can penetrate the lock core hole to the metal block 2013 inside the lock shell hole, so that the device will not be easily cracked; in addition, the outer shell, lock shell, and lock core of the device are all made of metal material, so that the device can shield the internal metal block, ensuring that the use of a magnet outside the device will not attract the metal block 2013 on the internal buckle 2012. Example 6

[0024] Preferably, a bevel design can be further added to the front part of the hook portion of the device, so that the lock head will be automatically pressed down when inserted into the USB port, and the hook will automatically pop out after the hook portion of the hook reaches the gap of the spring sheet.

[0025] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A computer interface security device capable of preventing computer data from being output, comprising: include: USB lock, key, baffle; The USB lock comprises: a USB head, a hook, a slider, a spring, a buckle, a metal block, a shell, and a lock shell; A hook-shaped structure is fixedly provided at the upper end of one side of the hook, a shaft hole is provided at the middle bottom of the hook, and an inclined slide groove is provided at the end of the hook; the hook is rotatably connected to the USB head through the shaft hole; The two ends of the slider are provided with cylindrical end caps, the slider is slidably installed inside the USB head, and the cylindrical end caps are slidably matched in the oblique sliding groove of the hook; the end of the slider is fixedly connected to the spring; The buckle is fixedly connected to the slider, and the metal block is fixedly installed inside the buckle; one end of the shell is fixedly connected to the USB head, and the other end of the spring is fixedly connected to the inside of the shell; the lock shell is fixedly connected to the bottom of the shell, and the lock core is rotatably installed inside the lock shell; The key comprises: a key head, a coil, and a fingerprint module; the coil is wound around a metal rod of the key head, and the coil is electrically connected to the fingerprint module.

2. A computer interface security device capable of preventing computer data output according to claim 1, characterized in that: The top shape of the USB head is similar to that of a USB interface, with two square hollows being arranged on the top and hook grooves being arranged at the ends of the square hollows.

3. A computer interface security device capable of preventing computer data output according to claim 1, characterized in that: A lock shell hole is provided inside the lock shell, and a lock core hole is provided inside the lock core. The shape of the lock core hole is the same as the shape of the key head. Only when a key head of appropriate shape is inserted into the lock core hole can the lock core be rotated and the key head can be aligned with the lock shell hole.

4. A computer interface security device capable of preventing computer data output according to claim 1, characterized in that: The fingerprint module includes: a capacitive fingerprint identifier, a control board, and a battery.

5. A computer interface security device capable of preventing computer data output according to claim 1, characterized in that: A circle of bosses is fixedly arranged on the outer side of the shell, and the baffle is detachably installed on the inner side of the bosses of the shell.

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