Accounting computerization data protection device

Abstract

The invention relates to the technical field of accounting computerization, and provides an accounting computerization data protection device which comprises a storage mechanism and a limiting mechanism, and the limiting mechanism is used for being fixedly connected with a computer host; the storage mechanism is arranged on one side of the limiting mechanism, the storage mechanism comprises a USB flash disk mechanism and a sleeve frame mechanism, the USB flash disk mechanism comprises a data storage USB flash disk, and the data storage USB flash disk is provided with a first cavity and a second cavity. According to the invention, through the physical and magnetic locking mechanism of the sleeve frame, unauthorized personnel are effectively prevented from pulling away the data storage USB flash disk, and through the locking design of the insertion block and the movable block, the USB flash disk cannot be immediately inserted into other computers for use after being pulled away. Specifically, the locking mechanism of the sleeve frame and the interaction of the magnet enable the insertion block not to slide freely after the USB flash disk is pulled away, so that the USB flash disk is prevented from being inserted into a USB interface of another computer, and an unauthorized person is prevented from reading accounting computerization data in the USB flash disk.

Description

Technical Field

[0001] The present invention relates to the technical field of computerized accounting, and in particular to a computerized accounting data protection device. Background Art

[0002] In modern accounting computerization systems, data storage USB flash drives, as a portable storage device, are widely used for the backup and transmission of financial data. Accounting computerization systems use computer technology to automate the processing of financial data, improving work efficiency and accuracy. These systems not only simplify the generation and analysis of financial statements, but also strengthen the management and auditing of financial data, greatly improving the financial management capabilities of enterprises. However, as the importance of data continues to increase, data security issues are becoming increasingly prominent.

[0003] In modern accounting computerization systems, traditional data storage USB flash drives lack effective data protection mechanisms and are easily unplugged and used immediately by unauthorized personnel, resulting in the leakage and loss of accounting computerization data, increasing data security risks.

[0004] The purpose of the present invention is to solve the problem that the accounting computerization data in the traditional accounting computerization USB flash disk is easily stolen. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the accounting computerized data in the traditional accounting computerized USB flash drive is easily stolen. The present invention adopts the following technical solutions: An accounting computerization data protection device comprises a storage mechanism and a limiting mechanism, wherein the limiting mechanism is used for fixed connection with a computer host; The storage mechanism is arranged on one side of the limiting mechanism, the storage mechanism includes a U disk mechanism and a frame mechanism, the U disk mechanism includes a data storage U disk, the data storage U disk is provided with a first cavity and a second cavity, a first elastic member is provided in the first cavity, an insert block is installed at one end of the first elastic member, the insert block is slidably connected with the first cavity, a locking mechanism is provided in the second cavity, a cover plate is covered on the top surface of the data storage U disk, a hole is provided on the cover plate, and a first magnet block is provided on the top surface of the data storage U disk; The locking mechanism comprises a sliding frame, both ends of the sliding frame are fixedly connected to the plug block, the sliding frame is provided with a cross bar, a plurality of first movable blocks and second movable blocks are provided on the cross bar, the first movable block and the second movable block have the same structure, the first movable block is provided with a second slot, one end of the first movable block provided with the second slot is downwardly arranged on the cross bar, and one end of the second movable block provided with the second slot is upwardly arranged on the cross bar, a third magnet block is provided at the top of the second movable block, and a fifth magnet block is provided at the top of the first movable block; The sleeve frame mechanism includes a sleeve frame, the sleeve frame is sleeved outside the data storage U disk, the data storage U disk is slidably connected to the sleeve frame, a plurality of fourth magnet blocks corresponding to the positions of the third magnet blocks are arranged on the top of the inner cavity of the sleeve frame, the fourth magnet blocks are magnetically attracted to the third magnet blocks, a plurality of second magnet blocks corresponding to the positions of the fifth magnet blocks arranged at the end are arranged on the top of the inner cavity of the sleeve frame, the second magnet blocks are magnetically repelled from the fifth magnet blocks, a plurality of sixth magnet blocks are arranged on one side of the inner cavity top of the sleeve frame, the sixth magnet blocks are magnetically attracted to the fifth magnet blocks; A sleeve is provided on the top of the sleeve, and a top plate is provided on the top of the sleeve. A first threaded rod is sleeved in the top plate, and the first threaded rod is threadedly connected to the top plate. A clamping block is rotatably connected to the bottom end of the first threaded rod, and a first clamping ring is fixedly connected to the top of the clamping block. The first clamping ring is provided in a clamping ring groove formed in the first threaded rod, and the first clamping ring includes a round block, and the height of the round block is lower than the height of the clamping ring groove. The first clamping ring is rotatably connected to the first threaded rod, and the first clamping ring and the outer sleeve of the first threaded rod are provided with a second elastic member, a hole for allowing the clamping block to pass is provided on the top of the sleeve, and the first threaded rod is provided with a first special-shaped groove.

[0006] In the above-mentioned accounting computerization data protection device, the limiting mechanism includes a positioning mechanism, the positioning mechanism includes a shell, a USB connector is provided on one side of the shell, a slot is provided on one side of the shell, a USB interface is provided on one side of the shell, a second threaded rod is sleeved on the top of the shell, the second threaded rod is threadedly connected to the shell, a second special-shaped groove is provided at one end of the second threaded rod, and the insert block is provided with a limiting hole matching the second threaded rod.

[0007] In the accounting computerization data protection device as described above, the first special-shaped groove and the second special-shaped groove have the same specifications and structures, the first threaded rod and the second threaded rod are equipped with a twisting mechanism, the twisting mechanism includes a connecting column, one end of the connecting column is fixedly connected to a ring block, the other end of the connecting column is fixedly connected to a special-shaped block, and the special-shaped block matches the shape of the first special-shaped groove and the second special-shaped groove.

[0008] In the accounting computerization data protection device as described above, a first slot is provided on one side of the data storage USB flash drive, a speaker mechanism is installed in the first slot, a power supply is installed in the second cavity, a button is provided at one end of the data storage USB flash drive, the speaker mechanism is electrically connected to the power supply through the button, and a plurality of through holes are provided in the frame, which are connected to the first slot.

[0009] In the accounting computerization data protection device as described above, at least one through slot is provided on both sides of the frame, the storage mechanism includes a clamp, the clamp includes a connecting plate, both sides of the connecting plate are fixedly connected with clamping blocks matching the through slot, and one side of the clamping block is fixedly connected with a rubber pad.

[0010] In the above-mentioned accounting computerization data protection device, both sides of the shell are fixedly connected with connecting rings, the connecting rings are connected with belts, and one end of the belt is provided with a connecting mechanism.

[0011] As described above, the computerized accounting data protection device, the connecting mechanism includes a cylinder, a bolt is sleeved inside the cylinder, the bolt is threadedly connected to the cylinder, one end of the bolt is fixedly connected to a polygonal block, one side of the polygonal block is fixedly connected to a second retaining ring, the second retaining ring is outermostly provided with a connecting block, and the connecting block is slidably connected to the second retaining ring.

[0012] As described above, in the accounting computerization data protection device, the top surface of the data storage USB disk is provided with at least one first magnet block, and the first magnet block is magnetically attracted to the card block.

[0013] In the accounting computerization data protection device as described above, a slide groove is opened on the inner wall of the sleeve, the block is fixedly connected with a slider, the slider is arranged in the slide groove, the slider is slidably connected to the slide groove, and the top end of the first threaded rod is covered with a top cover for covering the first special-shaped groove.

[0014] In the accounting computerization data protection device as described above, limit blocks are arranged on both sides of the data storage U disk, limit grooves matching the shape of the limit blocks are opened on the inner walls of both sides of the frame, protrusions are arranged on both sides of the insertion block, and card slots are opened on both sides of the first cavity, the protrusions are arranged in the card slots, and the protrusions are slidably connected to the card slots.

[0015] Implementing the embodiments of the present invention has the following beneficial effects: 1. In the present invention, the physical and magnetic locking mechanism of the housing effectively prevents unauthorized personnel from unplugging the data storage USB flash drive, and the locking design of the plug block and the movable block ensures that the USB flash drive cannot be immediately plugged into other computers for use after being unplugged. Specifically, the interaction between the locking mechanism of the housing and the magnet prevents the plug block from sliding freely after the USB flash drive is unplugged, thereby preventing the USB flash drive from being plugged into the USB port of other computers, preventing unauthorized personnel from reading the accounting computerization data in the USB flash drive.

[0016] 2. In the present invention, the limiting mechanism is fixed to the computer host through the belt and the connecting mechanism to ensure that the data storage USB flash drive is fixed in the positioning mechanism. The locking design of the second threaded rod and the plug block makes it impossible for the plug block to be pulled out of the positioning mechanism, further preventing unauthorized personnel from stealing the USB flash drive. The matching twisting mechanism simplifies the operating tools and improves convenience. At the same time, the special shape of the special-shaped block increases the difficulty of unauthorized operation and improves the security of the data storage USB flash drive.

[0017] 3. In the present invention, a speaker mechanism is installed in the data storage USB flash drive. When an unauthorized person tries to pull out the USB flash drive, the frame is pulled out, the button pops out automatically, the power supply supplies power to the speaker mechanism, and an alarm sounds. Through the through hole on the frame, the alarm sound can be clearly transmitted, serving as a warning to remind the user to be alert. When the alarm is no longer needed, the frame needs to be put back on the USB flash drive, the button is pressed again, the speaker mechanism stops working, and the alarm sound disappears. This design effectively prevents the USB flash drive from being illegally pulled out and used by unauthorized persons.

[0018] In summary, the present invention solves the problem that the accounting computerization data in the traditional accounting computerization USB flash drive is easily stolen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an accounting computerization data protection device of the present invention.

[0021] Figure 2 It is an exploded view of an accounting computerization data protection device of the present invention.

[0022] Figure 3 The present invention is a schematic diagram of the structure of a storage mechanism of a computerized accounting data protection device.

[0023] Figure 4 It is an exploded view of a storage mechanism of a computerized accounting data protection device of the present invention.

[0024] Figure 5 It is a cross-sectional view of a frame mechanism of an accounting computerization data protection device of the present invention.

[0025] Figure 6 The present invention is a partial structural schematic diagram of a frame mechanism of an accounting computerization data protection device.

[0026] Figure 7 The present invention is a schematic diagram of the structure of a USB disk mechanism of an accounting computerization data protection device.

[0027] Figure 8 The present invention is a cross-sectional view of a USB flash drive of a computerized accounting data protection device.

[0028] Fig. 9 The present invention is a schematic diagram of the structure of a locking mechanism of an accounting computerization data protection device.

[0029] Fig.10 It is a structural schematic diagram from another angle of a locking mechanism of an accounting computerization data protection device of the present invention.

[0030] Fig.11 The present invention is a schematic diagram of the structure of a positioning mechanism of an accounting computerization data protection device.

[0031] Fig.12 The present invention is a schematic diagram of the structure of a connection mechanism of an accounting computerization data protection device.

[0032] Fig.13 The present invention is a schematic diagram of the structure of a clamp of a connecting mechanism of an accounting computerization data protection device.

[0033] Fig.14 The present invention is a schematic structural diagram of a clamp of an unlocking mechanism of an accounting computerized data protection device.

[0034] Fig.15 The present invention is a schematic diagram of the structure of an accounting computerization data protection device installed on a computer host.

[0035] Fig.16 It is a cross-sectional view of a first threaded rod and a clamping block of an accounting computerization data protection device of the present invention.

[0036] Fig.17 It is a cross-sectional view from another angle of a frame mechanism of a computerized accounting data protection device of the present invention. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figures 1 to 17As shown, the present invention proposes an accounting computerization data protection device, comprising a storage mechanism 1 and a limiting mechanism 2, wherein the limiting mechanism 2 is used for fixed connection with a computer host; The storage mechanism 1 is arranged at one side of the limiting mechanism 2, and the storage mechanism 1 includes a U disk mechanism 11 and a frame mechanism 12. The U disk mechanism 11 includes a data storage U disk 112, and the data storage U disk 112 is provided with a first cavity 119 and a second cavity 1112. A first elastic member 1114 is provided in the first cavity 119, and the first elastic member 1114 is a spring. An insert block 1115 is installed at one end of the first elastic member 1114, and the insert block 1115 is slidably connected with the first cavity 119. A locking mechanism 113 is provided in the second cavity 1112. The top surface of the data storage U disk 112 is covered with a cover plate 111, and the cover plate 111 is provided with a hole 117. The top surface of the data storage U disk 112 is provided with a first magnet block 114; The locking mechanism 113 includes a sliding frame 1124, both ends of which are fixedly connected to the insert block 1115, the sliding frame 1124 is provided with a cross bar 1129, the sliding frame 1124 includes an L-shaped section 1123 for connecting the cross bar 1129, a plurality of first movable blocks 1120 and second movable blocks 1122 are provided on the cross bar 1129, the first movable blocks 1120 and the second movable blocks 1122 have the same structure, the first movable block 1120 is provided with a second slot 1125, one end of the first movable block 1120 provided with the second slot 1125 is downwardly arranged on the cross bar 1129, and one end of the second movable block 1122 provided with the second slot 1125 is upwardly arranged on the cross bar 1129, the top of the second movable block 1122 is provided with a third magnet block 1126, and the top of the first movable block 1120 is provided with a fifth magnet block 1128; The sleeve frame mechanism 12 includes a sleeve frame 121, the sleeve frame 121 is sleeved outside the data storage U disk 112, the data storage U disk 112 is slidably connected to the sleeve frame 121, a plurality of fourth magnet blocks 1127 corresponding to the position of the third magnet block 1126 are arranged on the top of the inner cavity of the sleeve frame 121, the fourth magnet block 1127 and the third magnet block 1126 are magnetically attracted, a plurality of second magnet blocks 1118 corresponding to the position of the fifth magnet block 1128 are arranged on the top of the inner cavity of the sleeve frame 121, the second magnet block 1118 and the fifth magnet block 1128 are magnetically repelled, a plurality of sixth magnet blocks 1130 are arranged on one side of the inner cavity top of the sleeve frame 121, the sixth magnet block 1130 and the fifth magnet block 1128 are magnetically attracted; A sleeve 123 is provided at the top of the sleeve 123, and a top plate 128 is provided at the top of the sleeve 123. A first threaded rod 122 is sleeved in the top plate 128, and the first threaded rod 122 is threadedly connected to the top plate 128. A clamping block 125 is rotatably connected to the bottom end of the first threaded rod 122, and a first clamping ring 1211 is fixedly connected to the top of the clamping block 125. The first clamping ring 1211 is arranged in a clamping ring groove 1221 provided in the first threaded rod 122, and the first clamping ring 1211 includes a round block 12111, and the height of the round block 12111 is lower than the height of the clamping ring groove 1221. The first clamping ring 1211 is rotatably connected to the first threaded rod 122, and the first clamping ring 1211 and the first threaded rod 122 are outer-coated with a second elastic member 129. A hole for allowing the clamping block 125 to pass through is provided at the top of the sleeve 121, and the first threaded rod 122 is provided with a first special-shaped groove 1213.

[0039] When in use, the data storage U disk 112 is inserted into the computer USB interface, and the plug block 1115 contacts the part above the computer USB interface. As the data storage U disk 112 is completely inserted into the computer USB interface, the plug block 1115 is pressed into the first cavity 119, and the first elastic member 1114 is pressed. At this time, the data storage U disk 112 is used as a common data storage device, and the accounting computerized data in the data storage U disk 112 is read normally. During normal use, the sleeve frame 121 is sleeved on the outside of the data storage USB flash drive 112, and the magnets in the sleeve frame 121 interact with the data storage USB flash drive 112, so that the plug block 1115 is in a state where it can slide freely. Specifically, at this time, the sixth magnet block 1130 installed on the top of the inner cavity of the sleeve frame 121 is directly above the fifth magnet block 1128, and the fifth magnet block 1128 and the second magnet block 1118 are magnetically attracted to each other, thereby pulling the first movable block 1120 upward, and the bottom end of the lifted first movable block 1120 is above the bottom block 1121. Since the third magnet block 1126 on the second movable block 1122 is not affected by external force, the second movable block 1122 falls freely, and the top end of the second movable block 1122 is below the bottom of the top block 1119. When the inserting block 1115 drives the sliding frame 1124 to move to one side, the first movable block 1120 and the second movable block 1122 on the sliding frame 1124 will not be hindered in any way, so that the inserting block 1115 can slide freely.

[0040] When the U disk mechanism 11 is unplugged by an unauthorized person, since the frame 121 covers the data storage U disk 112, the unauthorized person can only unplug the data storage U disk 112 by grasping the frame 121. When the frame 121 is pulled out, the frame 121 will move to one side, and the frame 121 drives the second magnet block 1118, the fourth magnet block 1127 and the card block 125 to move to one side. When the card block 125 moves to the hole 117, the card block 125 is pushed into the hole 117 by the second elastic member 129. At this time, the frame 121 cannot continue to move, and at the same time, the second magnet block 1118 and the fourth magnet block 1127 at the top of the inner cavity of the frame 121 are directly above the fifth magnet block 1128 and the third magnet block 1126. The fourth magnet block 1127 is magnetically attracted to the third magnet block 1126, and the second movable block 1122 moves upward. The top of the second movable block 1122 is above the bottom of the top block 1119. The second magnet block 1118 and the fifth magnet block 1128 are magnetically repelled. The bottom end of the first movable block 1120 is lower than the top of the bottom block 1121. At this time, when the insert block 1115 drives the sliding frame 1124 to move to one side, the first movable block 1120 and the second movable block 1122 will be blocked by the bottom block 1121 and the top block 1119 respectively, and the insert block 1115 cannot slide freely. Due to the obstruction of the insert block 1115, the data storage U disk 112 cannot be normally inserted into the USB port of the computer, thereby preventing unauthorized persons from reading the accounting computerization data in the data storage U disk 112, and providing time for the user to retrieve the data storage U disk 112.

[0041] Further, as a preferred embodiment of the present invention but not limiting, the limiting mechanism 2 includes a positioning mechanism 21, the positioning mechanism 21 includes a shell 211, a USB connector 212 is provided on one side of the shell 211, a slot 215 is provided on one side of the shell 211, a USB interface 214 is provided on one side of the shell 211, a second threaded rod 216 is sleeved inside the top of the shell 211, the second threaded rod 216 is threadedly connected to the shell 211, a second special-shaped groove 217 is provided at one end of the second threaded rod 216, and the insert block 1115 is provided with a limiting hole 1116 matching the second threaded rod 216. Both sides of the shell 211 are fixedly connected with a connecting ring 213, the connecting ring 213 is connected with a belt 22, and one end of the belt 22 is provided with a connecting mechanism 23. The limiting mechanism 2 can be fixed on a common desktop computer host through the belt 22 and the connecting mechanism 23. The USB connector 212 is used to connect to the computer host, the slot 215 is used to insert the plug block 1115, and the USB interface 214 is used to connect to the data storage USB flash drive 112. By twisting the second threaded rod 216, one end of the second threaded rod 216 enters the limiting hole 1116 of the plug block 1115. At this time, the plug block 1115 cannot be pulled out of the positioning mechanism 21, further preventing unauthorized persons from stealing the data storage USB flash drive 112. The second threaded rod 216 needs to pass through the second special-shaped groove 217 to twist, and it is difficult for non-special tools to match, thereby further increasing the difficulty of stealing the data storage USB flash drive 112.

[0042] Further, as a preferred embodiment of the present invention but not a limitation, the first special-shaped groove 1213 and the second special-shaped groove 217 have the same specifications and structures, and the first threaded rod 122 and the second threaded rod 216 are equipped with a twisting mechanism, and the twisting mechanism includes a connecting column 4, one end of the connecting column 4 is fixedly connected to a ring block 42, and the other end of the connecting column 4 is fixedly connected to a special-shaped block 41, and the special-shaped block 41 matches the shape of the first special-shaped groove 1213 and the second special-shaped groove 217. In order to further improve the security and operational convenience of the accounting computerization data protection device, the present invention designs a matching twisting mechanism. When the first threaded rod 122 needs to be twisted, the special-shaped block 41 of the twisting mechanism is inserted into the first special-shaped groove 1213 on the first threaded rod 122. Hold the ring block 42 by hand, rotate the connecting column 4, and the first threaded rod 122 rotates accordingly. By rotating the first threaded rod 122, the first threaded rod 122 moves upward, so that the retaining ring groove 1221 moves upward, further driving the first retaining ring 1211 to move upward, thereby realizing the retraction of the retaining block 125. At this time, the sleeve frame 121 can slide freely, thereby resetting the sleeve frame 121. After the sleeve frame 121 is reset, the insert block 1115 can also slide freely. At this time, the data storage U disk 112 is unlocked and can be inserted into the computer for use.

[0043] When the second threaded rod 216 needs to be twisted, the shaped block 41 of the twisting mechanism is inserted into the second shaped groove 217 on the second threaded rod 216. Hold the annular block 42 by hand and rotate the connecting column 4 to rotate the second threaded rod 216. By rotating the second threaded rod 216, one end of the second threaded rod 216 enters or exits the limiting hole 1116 of the plug block 1115. When the second threaded rod 216 enters the limiting hole 1116, the plug block 1115 is fixed to prevent it from sliding, thereby preventing the USB flash drive from being pulled out; when the second threaded rod 216 exits the limiting hole 1116, the plug block 1115 can slide freely and the USB flash drive can be pulled out. The first shaped groove 1213 and the second shaped groove 217 have the same specifications and structures, so the same twisting mechanism can be used to operate the first threaded rod 122 and the second threaded rod 216, which simplifies the operating tools and improves convenience. The special shape of the special-shaped block 41 makes it difficult for non-special tools to match it, which increases the difficulty of unauthorized operation and improves the security of the data storage USB disk 112.

[0044] Further, as a preferred embodiment of the present invention but not limiting, a first slot 116 is provided on one side of the data storage USB flash drive 112, a speaker mechanism 115 is installed in the first slot 116, a power supply 1110 is installed in the second cavity 1112, a button 1111 is provided at one end of the data storage USB flash drive 112, the speaker mechanism 115 is electrically connected to the power supply 1110 through the button 1111, and a plurality of through holes 126 are provided on the casing 121, and the through holes 126 are connected to the first slot 116. By default, the button 1111 is pressed by the inner cavity of the casing 121 and is in a closed state, the speaker mechanism 115 does not work, and the power supply 1110 does not supply power. When an unauthorized person attempts to pull out the USB flash drive, the sleeve frame 121 must be pulled out first. When the sleeve frame 121 is pulled out, the button 1111 is no longer pressed by the inner cavity of the sleeve frame 121, and the button 1111 automatically pops out and is in an open state. The button 1111 closes the circuit, and the power supply 1110 supplies power to the speaker mechanism 115, and the speaker mechanism 115 starts to work and emits an alarm. Through the through hole 126 on the sleeve frame 121, the alarm sound emitted by the speaker mechanism 115 can be clearly transmitted, which serves as a warning, thereby reminding the user to be alert. When the alarm is no longer needed, the sleeve frame 121 is put back on the data storage USB flash drive 112. After the sleeve frame 121 is reset, the button 1111 is pressed by the inner cavity of the sleeve frame 121 again and is in a closed state. The button 1111 disconnects the circuit, and the power supply 1110 stops supplying power to the speaker mechanism 115, and the speaker mechanism 115 stops working, and the alarm disappears.

[0045] Further, as a preferred embodiment of the present invention but not limited thereto, at least one through slot 124 is provided on both sides of the sleeve 121, and the storage mechanism 1 includes a clamp 3, and the clamp 3 includes a connecting plate 31, and the connecting plate 31 is elastic. A clamp block 32 matching the through slot 124 is fixedly connected to both sides of the connecting plate 31, and a rubber pad 33 is fixedly connected to one side of the clamp block 32. By inserting the clamp block 32 into the through slot 124, the elasticity of the connecting plate 31 drives the clamp block 32 to clamp the data storage USB flash drive 112, and the sleeve 121 is difficult to be pulled out at this time, so as to avoid the sleeve 121 being pulled out by mistake and causing alarm and locking during daily storage. When the data storage USB flash drive 112 is used, the clamp 3 is removed from the sleeve 121, and the sleeve 121 is in a state that is easy to be pulled out. When the data storage USB flash drive 112 needs to be pulled out after use, the clamp 3 is reinserted into the through slot 124 of the sleeve 121. The clamping block 32 of the clamp 3 clamps the data storage U disk 112 again, returning to the normal storage state to prevent misoperation. At this time, the data storage U disk 112 can be pulled out by clamping the data storage U disk 112 by the clamp 3.

[0046] Further, as a preferred embodiment of the present invention but not limited thereto, the connection mechanism 23 includes a cylinder 231, a bolt 232 is sleeved inside the cylinder 231, the bolt 232 is threadedly connected to the cylinder 231, one end of the bolt 232 is fixedly connected to a polygonal block 233, one side of the polygonal block 233 is fixedly connected to a second clamping ring 234, a connecting block 235 is sleeved outside the second clamping ring 234, and the connecting block 235 is slidably connected to the second clamping ring 234. The positioning mechanism 21 is fixed to the computer mainframe case by wrapping the belt 22 around the outside of the computer mainframe case, and the bolt 232 is screwed into the cylinder 231 by rotating the polygonal block 233 to achieve the connection of the belts 22 on both sides, so as to limit the positioning mechanism 21 on the computer mainframe case. When used in conjunction with the storage mechanism 1, the data storage U disk 112 can be fixed in the positioning mechanism 21 to prevent unauthorized persons from stealing the data storage U disk 112.

[0047] Further, as a preferred embodiment of the present invention but not limiting, at least one first magnet block 114 is disposed on the top surface of the data storage USB disk 112, and the first magnet block 114 is magnetically attracted to the card block 125. The first magnet block 114 can firmly attract the card block 125 to prevent the card block 125 from easily falling out of the hole 117.

[0048] Further, as a preferred embodiment of the present invention but not limited thereto, a slide groove 1212 is provided on the inner wall of the sleeve 123, a slider 1210 is fixedly connected to the block 125, the slider 1210 is arranged in the slide groove 1212, the slider 1210 is slidably connected to the slide groove 1212, and the top end of the first threaded rod 122 is covered with a top cover 127 for covering the first special-shaped groove 1213. The slider 1210 and the slide groove 1212 are used in combination to prevent the block 125 from being offset when moving up and down. It is ensured that the block 125 can be accurately aligned with the hole body 117, and the locking effect of the block 125 and the hole body 117 is enhanced. The top cover 127 can prevent foreign matter from entering the first special-shaped groove 1213, while making the first special-shaped groove 1213 have a certain degree of concealment.

[0049] Further, as a preferred embodiment of the present invention but not a limitation, both sides of the data storage USB disk 112 are provided with limit blocks 118, both sides of the inner walls of the sleeve frame 121 are provided with limit grooves 1214 matching the shape of the limit blocks 118, both sides of the plug block 1115 are provided with protrusions 1117, both sides of the first cavity 119 are provided with card slots 1113, the protrusions 1117 are arranged in the card slots 1113, and the protrusions 1117 are slidably connected with the card slots 1113. The protrusions 1117 and the card slots 1113 are used in combination to enable the plug block 1115 to slide only along the card slots 1113, thereby preventing the plug block 1115 from deflecting when sliding. This makes the plug block 1115 more stable during the sliding process, and reduces the jamming or stuck phenomenon caused by the deflection. The cooperation between the protrusion 1117 and the slot 1113 ensures that the insert block 1115 always moves along a predetermined path when sliding, so that the insert block 1115 can be accurately aligned with the limiting hole 1116, thereby enhancing the locking effect between the second threaded rod 216 and the insert block 1115. Example

[0050] The present invention provides an accounting computerization data protection device, comprising a storage mechanism 1 and a limiting mechanism 2, wherein the limiting mechanism 2 is used for fixed connection with a computer host; The storage mechanism 1 is arranged at one side of the limiting mechanism 2, and the storage mechanism 1 includes a U disk mechanism 11 and a frame mechanism 12. The U disk mechanism 11 includes a data storage U disk 112, and the data storage U disk 112 is provided with a first cavity 119 and a second cavity 1112. A first elastic member 1114 is provided in the first cavity 119, and the first elastic member 1114 is a spring. An insert block 1115 is installed at one end of the first elastic member 1114, and the insert block 1115 is slidably connected with the first cavity 119. A locking mechanism 113 is provided in the second cavity 1112. The top surface of the data storage U disk 112 is covered with a cover plate 111, and the cover plate 111 is provided with a hole 117. The top surface of the data storage U disk 112 is provided with a first magnet block 114; The locking mechanism 113 includes a sliding frame 1124, both ends of which are fixedly connected to the insert block 1115, the sliding frame 1124 is provided with a cross bar 1129, the sliding frame 1124 includes an L-shaped section 1123 for connecting the cross bar 1129, a plurality of first movable blocks 1120 and second movable blocks 1122 are provided on the cross bar 1129, the first movable blocks 1120 and the second movable blocks 1122 have the same structure, the first movable block 1120 is provided with a second slot 1125, one end of the first movable block 1120 provided with the second slot 1125 is downwardly arranged on the cross bar 1129, and one end of the second movable block 1122 provided with the second slot 1125 is upwardly arranged on the cross bar 1129, the top of the second movable block 1122 is provided with a third magnet block 1126, and the top of the first movable block 1120 is provided with a fifth magnet block 1128; The sleeve frame mechanism 12 includes a sleeve frame 121, the sleeve frame 121 is sleeved outside the data storage U disk 112, the data storage U disk 112 is slidably connected to the sleeve frame 121, a plurality of fourth magnet blocks 1127 corresponding to the position of the third magnet block 1126 are arranged on the top of the inner cavity of the sleeve frame 121, the fourth magnet block 1127 and the third magnet block 1126 are magnetically attracted, a plurality of second magnet blocks 1118 corresponding to the position of the fifth magnet block 1128 are arranged on the top of the inner cavity of the sleeve frame 121, the second magnet block 1118 and the fifth magnet block 1128 are magnetically repelled, a plurality of sixth magnet blocks 1130 are arranged on one side of the inner cavity top of the sleeve frame 121, the sixth magnet block 1130 and the fifth magnet block 1128 are magnetically attracted; A sleeve 123 is provided at the top of the sleeve 123, and a top plate 128 is provided at the top of the sleeve 123. A first threaded rod 122 is sleeved in the top plate 128, and the first threaded rod 122 is threadedly connected to the top plate 128. A clamping block 125 is rotatably connected to the bottom end of the first threaded rod 122, and a first clamping ring 1211 is fixedly connected to the top of the clamping block 125. The first clamping ring 1211 is arranged in a clamping ring groove 1221 provided in the first threaded rod 122, and the first clamping ring 1211 includes a round block 12111, and the height of the round block 12111 is lower than the height of the clamping ring groove 1221. The first clamping ring 1211 is rotatably connected to the first threaded rod 122, and the first clamping ring 1211 and the first threaded rod 122 are outer-coated with a second elastic member 129. A hole for allowing the clamping block 125 to pass through is provided at the top of the sleeve 121, and the first threaded rod 122 is provided with a first special-shaped groove 1213. The inner wall of the sleeve 123 is provided with a slide groove 1212, and the block 125 is fixedly connected with a slider 1210, and the slider 1210 is arranged in the slide groove 1212, and the slider 1210 is slidably connected with the slide groove 1212, and the top end of the first threaded rod 122 is covered with a top cover 127 for covering the first special-shaped groove 1213. The slider 1210 and the slide groove 1212 are used in combination to prevent the block 125 from being offset when moving up and down. It ensures that the block 125 can be accurately aligned with the hole body 117, and enhances the locking effect of the block 125 and the hole body 117. The top cover 127 can prevent foreign matter from entering the first special-shaped groove 1213, and at the same time, the first special-shaped groove 1213 has a certain degree of concealment.

[0051] When in use, the data storage U disk 112 is inserted into the computer USB interface, and the plug block 1115 contacts the part above the computer USB interface. As the data storage U disk 112 is completely inserted into the computer USB interface, the plug block 1115 is pressed into the first cavity 119, and the first elastic member 1114 is pressed. At this time, the data storage U disk 112 is used as a common data storage device, and the accounting computerized data in the data storage U disk 112 is read normally. During normal use, the sleeve frame 121 is sleeved on the outside of the data storage USB flash drive 112, and the magnets in the sleeve frame 121 interact with the data storage USB flash drive 112, so that the plug block 1115 is in a state where it can slide freely. Specifically, at this time, the sixth magnet block 1130 installed on the top of the inner cavity of the sleeve frame 121 is directly above the fifth magnet block 1128, and the fifth magnet block 1128 and the second magnet block 1118 are magnetically attracted to each other, thereby pulling the first movable block 1120 upward, and the bottom end of the lifted first movable block 1120 is above the bottom block 1121. Since the third magnet block 1126 on the second movable block 1122 is not affected by external force, the second movable block 1122 falls freely, and the top end of the second movable block 1122 is below the bottom of the top block 1119. When the inserting block 1115 drives the sliding frame 1124 to move to one side, the first movable block 1120 and the second movable block 1122 on the sliding frame 1124 will not be hindered in any way, so that the inserting block 1115 can slide freely.

[0052] When the U disk mechanism 11 is unplugged by an unauthorized person, since the frame 121 covers the data storage U disk 112, the unauthorized person can only unplug the data storage U disk 112 by grasping the frame 121. When the frame 121 is pulled out, the frame 121 will move to one side, and the frame 121 drives the second magnet block 1118, the fourth magnet block 1127 and the card block 125 to move to one side. When the card block 125 moves to the hole 117, the card block 125 is pushed into the hole 117 by the second elastic member 129. At this time, the frame 121 cannot continue to move, and at the same time, the second magnet block 1118 and the fourth magnet block 1127 at the top of the inner cavity of the frame 121 are directly above the fifth magnet block 1128 and the third magnet block 1126. The fourth magnet block 1127 is magnetically attracted to the third magnet block 1126, and the second movable block 1122 moves upward. The top of the second movable block 1122 is above the bottom of the top block 1119. The second magnet block 1118 and the fifth magnet block 1128 are magnetically repelled. The bottom end of the first movable block 1120 is lower than the top of the bottom block 1121. At this time, when the insert block 1115 drives the sliding frame 1124 to move to one side, the first movable block 1120 and the second movable block 1122 will be blocked by the bottom block 1121 and the top block 1119 respectively, and the insert block 1115 cannot slide freely. Due to the obstruction of the insert block 1115, the data storage U disk 112 cannot be normally inserted into the USB port of the computer, thereby preventing unauthorized persons from reading the accounting computerization data in the data storage U disk 112, and providing time for the user to retrieve the data storage U disk 112.

[0053] The limiting mechanism 2 includes a positioning mechanism 21, and the positioning mechanism 21 includes a housing 211, a USB connector 212 is provided on one side of the housing 211, a slot 215 is provided on one side of the housing 211, a USB interface 214 is provided on one side of the housing 211, a second threaded rod 216 is sleeved inside the top of the housing 211, the second threaded rod 216 is threadedly connected to the housing 211, a second special-shaped groove 217 is provided at one end of the second threaded rod 216, and the insert block 1115 is provided with a limiting hole 1116 matching the second threaded rod 216. Both sides of the housing 211 are fixedly connected with a connecting ring 213, the connecting ring 213 is connected with a belt 22, and one end of the belt 22 is provided with a connecting mechanism 23. The limiting mechanism 2 can be fixed on a common desktop computer host through the belt 22 and the connecting mechanism 23. The USB connector 212 is used to connect to the computer host, the slot 215 is used to insert the plug block 1115, and the USB interface 214 is used to connect to the data storage USB flash drive 112. By twisting the second threaded rod 216, one end of the second threaded rod 216 enters the limiting hole 1116 of the plug block 1115. At this time, the plug block 1115 cannot be pulled out of the positioning mechanism 21, further preventing unauthorized persons from stealing the data storage USB flash drive 112. The second threaded rod 216 needs to pass through the second special-shaped groove 217 to twist, and it is difficult for non-special tools to match, thereby further increasing the difficulty of stealing the data storage USB flash drive 112.

[0054] The connecting mechanism 23 includes a cylinder 231, a bolt 232 is sleeved inside the cylinder 231, and the bolt 232 is threadedly connected to the cylinder 231. One end of the bolt 232 is fixedly connected to a polygonal block 233, and one side of the polygonal block 233 is fixedly connected to a second clamping ring 234. A connecting block 235 is sleeved outside the second clamping ring 234, and the connecting block 235 is slidably connected to the second clamping ring 234. The positioning mechanism 21 is fixed to the computer mainframe case by wrapping the belt 22 around the outside of the computer mainframe case, and the bolt 232 is screwed into the cylinder 231 by rotating the polygonal block 233 to achieve the connection of the belts 22 on both sides, so that the positioning mechanism 21 is limited on the computer mainframe case. When used in conjunction with the storage mechanism 1, the data storage U disk 112 can be fixed in the positioning mechanism 21 to prevent unauthorized persons from stealing the data storage U disk 112.

[0055] Limit blocks 118 are provided on both sides of the data storage USB flash drive 112, and limit grooves 1214 matching the shape of the limit blocks 118 are provided on both inner walls of the sleeve frame 121, and protrusions 1117 are provided on both sides of the plug-in block 1115, and a card slot 1113 is provided on both sides of the first cavity 119, and the protrusions 1117 are provided in the card slot 1113, and the protrusions 1117 are slidably connected with the card slot 1113. The protrusions 1117 and the card slot 1113 are used in combination to enable the plug-in block 1115 to slide only along the card slot 1113, thereby preventing the plug-in block 1115 from deflecting when sliding. This makes the plug-in block 1115 more stable during the sliding process, and reduces the jamming or stuck phenomenon caused by the deflection. The cooperation between the protrusion 1117 and the slot 1113 ensures that the insert block 1115 always moves along a predetermined path when sliding, so that the insert block 1115 can be accurately aligned with the limiting hole 1116, thereby enhancing the locking effect between the second threaded rod 216 and the insert block 1115.

[0056] The specifications and structures of the first special-shaped groove 1213 and the second special-shaped groove 217 are the same. The first threaded rod 122 and the second threaded rod 216 are equipped with a twisting mechanism, which includes a connecting column 4, one end of which is fixedly connected to a ring block 42, and the other end of which is fixedly connected to a special-shaped block 41, and the special-shaped block 41 matches the shapes of the first special-shaped groove 1213 and the second special-shaped groove 217. In order to further improve the security and operational convenience of the accounting computerization data protection device, the present invention designs a matching twisting mechanism. When the first threaded rod 122 needs to be twisted, the special-shaped block 41 of the twisting mechanism is inserted into the first special-shaped groove 1213 on the first threaded rod 122. Hold the ring block 42 by hand, rotate the connecting column 4, and the first threaded rod 122 rotates accordingly. By rotating the first threaded rod 122, the first threaded rod 122 moves upward, so that the snap ring groove 1221 moves upward, further driving the first snap ring 1211 to move upward, realizing the retraction of the block 125, at which time the sleeve frame 121 can slide freely, so that the sleeve frame 121 is reset. After the sleeve frame 121 is reset, the plug block 1115 can also slide freely, and the data storage USB flash drive 112 is unlocked and can be inserted into the computer for use. When the second threaded rod 216 needs to be twisted, the special-shaped block 41 of the twisting mechanism is inserted into the second special-shaped groove 217 on the second threaded rod 216. Hold the annular block 42 by hand and rotate the connecting column 4 to rotate the second threaded rod 216 accordingly. By rotating the second threaded rod 216, one end of the second threaded rod 216 enters or exits the limiting hole 1116 of the plug block 1115. When the second threaded rod 216 enters the limiting hole 1116, the plug block 1115 is fixed to prevent it from sliding, thereby preventing the USB flash drive from being pulled out; when the second threaded rod 216 exits the limiting hole 1116, the plug block 1115 can slide freely and the USB flash drive can be pulled out. The first special-shaped groove 1213 and the second special-shaped groove 217 have the same specifications and structure, so the same twisting mechanism can be used to operate the first threaded rod 122 and the second threaded rod 216, simplifying the operating tools and improving convenience. The special shape of the special-shaped block 41 makes it difficult to match with non-special tools, increases the difficulty of unauthorized operation, and improves the security of the data storage USB flash drive 112.

[0057] At least one through slot 124 is provided on both sides of the sleeve 121. The storage mechanism 1 includes a clamp 3, and the clamp 3 includes a connecting plate 31. The connecting plate 31 is elastic. A clamp block 32 matching the through slot 124 is fixedly connected to both sides of the connecting plate 31, and a rubber pad 33 is fixedly connected to one side of the clamp block 32. By inserting the clamp block 32 into the through slot 124, the elasticity of the connecting plate 31 drives the clamp block 32 to clamp the data storage USB flash drive 112. At this time, the sleeve 121 is difficult to be pulled out, so that the sleeve 121 is prevented from being pulled out by mistake during daily storage, causing alarm and locking. When the data storage USB flash drive 112 is used, the clamp 3 is removed from the sleeve 121. At this time, the sleeve 121 is in a state that is easy to be pulled out. When the data storage USB flash drive 112 needs to be pulled out after use, the clamp 3 is reinserted into the through slot 124 of the sleeve 121. The clamping block 32 of the clamp 3 clamps the data storage U disk 112 again, returning to the normal storage state to prevent misoperation. At this time, the data storage U disk 112 can be pulled out by clamping the data storage U disk 112 by the clamp 3.

[0058] A first slot 116 is provided on one side of the data storage USB flash drive 112, a speaker mechanism 115 is installed in the first slot 116, a power supply 1110 is installed in the second cavity 1112, a button 1111 is provided at one end of the data storage USB flash drive 112, the speaker mechanism 115 is electrically connected to the power supply 1110 through the button 1111, and a plurality of through holes 126 are provided on the casing 121, and the through holes 126 are connected to the first slot 116. By default, the button 1111 is pressed by the inner cavity of the casing 121 and is in a closed state, the speaker mechanism 115 does not work, and the power supply 1110 does not supply power. When an unauthorized person attempts to pull out the USB flash drive, the sleeve frame 121 must be pulled out first. When the sleeve frame 121 is pulled out, the button 1111 is no longer pressed by the inner cavity of the sleeve frame 121, and the button 1111 automatically pops out and is in an open state. The button 1111 closes the circuit, and the power supply 1110 supplies power to the speaker mechanism 115, and the speaker mechanism 115 starts to work and emits an alarm. Through the through hole 126 on the sleeve frame 121, the alarm sound emitted by the speaker mechanism 115 can be clearly transmitted, which serves as a warning, thereby reminding the user to be alert. When the alarm is no longer needed, the sleeve frame 121 is put back on the data storage USB flash drive 112. After the sleeve frame 121 is reset, the button 1111 is pressed by the inner cavity of the sleeve frame 121 again and is in a closed state. The button 1111 disconnects the circuit, and the power supply 1110 stops supplying power to the speaker mechanism 115, and the speaker mechanism 115 stops working, and the alarm disappears.

[0059] The implementation method of the second embodiment is as follows: The difference between the second embodiment and the first embodiment is that a positioning module is installed in the data storage U disk 112, which is used to monitor and report the location information of the data storage U disk 112 in real time. Specifically, the positioning module is composed of a GPS module, a wireless communication module, and a processor. The GPS module is used to receive global positioning system signals and obtain current location information. The wireless communication module is a cellular network module used to send location information to a remote server or user device. The processor is used to process GPS signals and wireless communications and manage data transmission. The positioning module is electrically connected to the power supply 1110 through the button 1111. When the U disk is unplugged by an unauthorized person, the frame 121 is pulled out, the button 1111 is released, the power supply 1110 supplies power to the positioning module, the GPS module starts working, and the location information is reported in real time. The user can receive an alarm notification through a mobile phone application or email, informing that the U disk is unplugged and providing the current location information. This allows the user to quickly track and retrieve the lost U disk based on the provided location information.

[0060] The top surface of the data storage USB disk 112 is provided with at least one first magnet block 114, and the first magnet block 114 is magnetically attracted to the card block 125. The first magnet block 114 can firmly attract the card block 125 to prevent the card block 125 from easily falling out of the hole 117.

[0061] Specifically, the working principle of the present invention is as follows: When the data storage USB flash drive 112 is inserted into the computer USB interface, the plug block 1115 contacts the upper part of the USB interface and is pressed into the first cavity 119, and the first elastic member 1114 (spring) is compressed. At this time, the data storage USB flash drive 112 is used as an ordinary data storage device and the accounting computerization data in the USB flash drive is read normally. The sleeve frame 121 is sleeved outside the data storage USB flash drive 112, and the magnets in the sleeve frame 121 interact with the data storage USB flash drive 112, so that the plug block 1115 is in a state where it can slide freely. Specifically, the sixth magnet block 1130 installed at the top of the inner cavity of the sleeve frame 121 is magnetically attracted to the fifth magnet block 1128, and the first movable block 1120 is pulled up so that its bottom end is above the bottom block 1121, while the second movable block 1122 is free to fall, and its top end is below the bottom of the top block 1119. In this way, the plug block 1115 can slide freely, ensuring that the data storage USB flash drive 112 can be normally inserted into and removed from the computer USB interface.

[0062] When an unauthorized person attempts to remove the USB flash drive mechanism 111, since the sleeve frame 121 covers the data storage USB flash drive 112, the unauthorized person can only remove the data storage USB flash drive 112 by grasping the sleeve frame 121. When the sleeve frame 121 is pulled, the sleeve frame 121 will move to one side, driving the second magnet block 1118, the fourth magnet block 1127 and the card block 125 to move to one side. When the card block 125 moves to the hole 117, the card block 125 is pushed into the hole 117 by the second elastic member 129, and the sleeve frame 121 cannot move further. At the same time, the second magnet block 1118 and the fifth magnet block 1128 repel each other magnetically, the bottom end of the first movable block 1120 is lower than the top of the bottom block 1121, and the fourth magnet block 1127 and the third magnet block 1126 are magnetically attracted, and the top end of the second movable block 1122 is above the bottom of the top block 1119. At this time, when the insert block 1115 drives the sliding frame 1124 to move to one side, the first movable block 1120 and the second movable block 1122 will be blocked by the bottom block 1121 and the top block 1119 respectively, and the insert block 1115 cannot slide freely, thereby preventing unauthorized persons from reading the accounting computerized data in the data storage USB disk 112.

[0063] The limiting mechanism 2 is fixed to the computer mainframe case through the belt 22 and the connecting mechanism 23. The belt 22 passes around the computer mainframe case, and the bolt 232 is screwed into the cylinder 231 by rotating the polygonal block 233 to achieve the connection of the belts 22 on both sides, thereby fixing the positioning mechanism 21 on the computer mainframe case. The data storage USB flash drive 112 is inserted into the slot 215 of the shell 211, and the limiting hole 1116 of the plug block 1115 is aligned with the second threaded rod 216. By twisting the second threaded rod 216 so that one end of it enters the limiting hole 1116 of the plug block 1115, the plug block 1115 is fixed to prevent it from sliding, thereby preventing the USB flash drive from being pulled out. Twisting the second threaded rod 216 requires passing through the second special-shaped groove 217, which is difficult to match with non-special tools, further increasing the difficulty of stealing the data storage USB flash drive 112. At the same time, the special-shaped block 41 of the twisting mechanism matches the shapes of the first special-shaped groove 1213 and the second special-shaped groove 217, and can be used to operate the first threaded rod 122 and the second threaded rod 216, thereby simplifying the operating tools and improving convenience.

[0064] In summary, the present invention solves the problem that the accounting computerization data in the traditional accounting computerization USB flash drive is easily stolen.

[0065] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0066] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An accounting computerization data protection device, comprising a storage device (1), characterized in that: The limiting mechanism (2) is used for fixed connection with the computer host; The storage mechanism (1) is arranged on one side of the limiting mechanism (2), the storage mechanism (1) comprises a U disk mechanism (11) and a frame mechanism (12), the U disk mechanism (11) comprises a data storage U disk (112), the data storage U disk (112) is provided with a first cavity (119) and a second cavity (1112), a first elastic member (1114) is arranged in the first cavity (119), an insert block (1115) is installed at one end of the first elastic member (1114), the insert block (1115) is slidably connected to the first cavity (119), a locking mechanism (113) is arranged in the second cavity (1112), a cover plate (111) is covered on the top surface of the data storage U disk (112), the cover plate (111) is provided with a hole (117), and a first magnet block (114) is arranged on the top surface of the data storage U disk (112); The locking mechanism (113) comprises a sliding frame (1124), both ends of the sliding frame (1124) being fixedly connected to the insert block (1115), the sliding frame (1124) being provided with a cross bar (1129), a plurality of first movable blocks (1120) and second movable blocks (1122) being provided on the cross bar (1129), the first movable blocks (1120) and the second movable blocks (1122) having the same structure, the first movable blocks (1120) A second groove (1125) is provided, one end of the first movable block (1120) provided with the second groove (1125) is arranged downward on the cross bar (1129), one end of the second movable block (1122) provided with the second groove (1125) is arranged upward on the cross bar (1129), a third magnet block (1126) is provided at the top of the second movable block (1122), and a fifth magnet block (1128) is provided at the top of the first movable block (1120); The sleeve frame mechanism (12) comprises a sleeve frame (121), the sleeve frame (121) being sleeved outside the data storage U disk (112), the data storage U disk (112) being slidably connected to the sleeve frame (121), a plurality of fourth magnet blocks (1127) corresponding to the positions of the third magnet blocks (1126) being arranged at the top of the inner cavity of the sleeve frame (121), the fourth magnet blocks (1127) and the third magnet blocks (1126) being magnetically attracted to each other, a plurality of second magnet blocks (1118) corresponding to the positions of the fifth magnet blocks (1128) being arranged at the end being arranged at the top of the inner cavity of the sleeve frame (121), the second magnet blocks (1118) and the fifth magnet blocks (1128) being magnetically repelled from each other, and a plurality of sixth magnet blocks (1130) being arranged at one side of the inner cavity top of the sleeve frame (121), the sixth magnet blocks (1130) and the fifth magnet blocks (1128) being magnetically attracted to each other; A sleeve (123) is arranged at the top of the sleeve frame (121), a top plate (128) is arranged at the top of the sleeve (123), a first threaded rod (122) is sleeved inside the top plate (128), the first threaded rod (122) is threadedly connected to the top plate (128), a clamping block (125) is rotatably connected to the bottom end of the first threaded rod (122), a first clamping ring (1211) is fixedly connected to the top of the clamping block (125), and the first clamping ring (1211) is arranged in a clamping ring groove (1211) provided in the first threaded rod (122). 221), the first snap ring (1211) comprises a round block (12111), the height of the round block (12111) is lower than the height of the snap ring groove (1221), the first snap ring (1211) is rotatably connected to the first threaded rod (122), the first snap ring (1211) and the first threaded rod (122) are provided with a second elastic member (129) on their outer sleeves, the top of the sleeve frame (121) is provided with a hole through which the snap block (125) can pass, and the first threaded rod (122) is provided with a first special-shaped groove (1213).

2. The computerized accounting data protection device according to claim 1, characterized in that: The limiting mechanism (2) comprises a positioning mechanism (21), the positioning mechanism (21) comprises a shell (211), a USB connector (212) is arranged on one side of the shell (211), a slot (215) is provided on one side of the shell (211), a USB interface (214) is provided on one side of the shell (211), a second threaded rod (216) is sleeved inside the top of the shell (211), the second threaded rod (216) is threadedly connected to the shell (211), a second special-shaped groove (217) is provided at one end of the second threaded rod (216), and the insert block (1115) is provided with a limiting hole (1116) matching the second threaded rod (216).

3. The computerized accounting data protection device according to claim 2, characterized in that: The first special-shaped groove (1213) and the second special-shaped groove (217) have the same specifications and structure. The first threaded rod (122) and the second threaded rod (216) are matched with a screwing mechanism. The screwing mechanism comprises a connecting column (4). One end of the connecting column (4) is fixedly connected to a ring block (42). The other end of the connecting column (4) is fixedly connected to a special-shaped block (41). The special-shaped block (41) matches the shape of the first special-shaped groove (1213) and the second special-shaped groove (217).

4. The computerized accounting data protection device according to claim 1, characterized in that: A first slot (116) is provided on one side of the data storage USB flash drive (112), a speaker mechanism (115) is installed in the first slot (116), a power supply (1110) is installed in the second cavity (1112), a button (1111) is provided at one end of the data storage USB flash drive (112), the speaker mechanism (115) is electrically connected to the power supply (1110) via the button (1111), and a plurality of through holes (126) are provided on the sleeve frame (121), the through holes (126) being connected to the first slot (116).

5. The computerized accounting data protection device according to claim 1, characterized in that: At least one through slot (124) is formed on both sides of the sleeve frame (121); the storage mechanism (1) comprises a clamp (3); the clamp (3) comprises a connecting plate (31); clamp blocks (32) matching the through slot (124) are fixedly connected to both sides of the connecting plate (31); and a rubber pad (33) is fixedly connected to one side of the clamp block (32).

6. The computerized accounting data protection device according to claim 2, characterized in that: Both sides of the housing (211) are fixedly connected with connecting rings (213), the connecting rings (213) are connected with a belt (22), and one end of the belt (22) is provided with a connecting mechanism (23).

7. The computerized accounting data protection device according to claim 6, characterized in that: The connecting mechanism (23) comprises a cylinder (231), a bolt (232) is sleeved inside the cylinder (231), the bolt (232) is threadedly connected to the cylinder (231), one end of the bolt (232) is fixedly connected to a polygonal block (233), one side of the polygonal block (233) is fixedly connected to a second clamping ring (234), a connecting block (235) is sleeved outside the second clamping ring (234), and the connecting block (235) is slidably connected to the second clamping ring (234).

8. The computerized accounting data protection device according to claim 1, characterized in that: At least one first magnet block (114) is provided on the top surface of the data storage USB disk (112), and the first magnet block (114) is magnetically attracted to the card block (125).

9. The computerized accounting data protection device according to claim 1, characterized in that: The inner wall of the sleeve (123) is provided with a sliding groove (1212), the clamping block (125) is fixedly connected with a sliding block (1210), the sliding block (1210) is arranged in the sliding groove (1212), the sliding block (1210) is slidably connected to the sliding groove (1212), and the top end of the first threaded rod (122) is covered with a top cover (127) for covering the first special-shaped groove (1213).

10. The computerized accounting data protection device according to claim 1, characterized in that: Limit blocks (118) are provided on both sides of the data storage USB flash drive (112); limit grooves (1214) matching the shape of the limit blocks (118) are provided on both inner walls of the sleeve frame (121); protrusions (1117) are provided on both sides of the insert block (1115); and card slots (1113) are provided on both sides of the first cavity (119); the protrusions (1117) are provided in the card slots (1113); and the protrusions (1117) are slidably connected to the card slots (1113).

Images