CN213304469U

CN213304469U - Computer accessory protector

Info

Publication number: CN213304469U
Application number: CN202022721577.5U
Authority: CN
Inventors: 李继伟; 赵永刚; 李紫蔓; 张迎春; 张秋菊
Original assignee: Henan Logistics Vocational College
Current assignee: Henan Logistics Vocational College
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-05-28
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to the technical field of computer accessories, in particular to a computer accessory protection device, which comprises a mainframe box front end cover and is characterized in that a first-level confusion device and a second-level protection device are arranged on the mainframe box front end cover, the computer accessory protection device also comprises a pushing device and a hidden USB electrifying device, a USB joint is shielded in a containing chamber by a first rectangular cover plate and a second rectangular cover plate, which can prevent dust or liquid from entering the USB joint, the first-level confusion device can cause certain cracking obstacle to lawless persons stealing files, the second-level protection device further strengthens the protection of the USB joint, the pushing device is controlled by a rocker switch hidden at the rear end of the second rectangular cover plate and is not easy to be found and triggered, the USB joint is arranged in the containing chamber, a copying tool such as a USB flash disk is not convenient to be inserted into the USB joint, the hidden USB electrifying device is hidden and not easy to be triggered, the file security is guaranteed to a great extent.

Description

Computer accessory protector

Technical Field

The utility model relates to a computer accessory technical field, especially computer accessory protection device.

Background

The computer is composed of a plurality of accessories, wherein the USB interface on the main case plays an important role as an information transmission tool, but the USB connector is generally ignored by people in the aspects of use and maintenance, dust is easily accumulated in the USB connector due to improper operation or power supply static electricity, a water cup on a computer desk is toppled, and the water can enter the USB connector to damage the USB connector, so that economic loss is brought to people, and more importantly, the loss of some important data can bring irreparable important loss to work or life.

In addition, the USB connector is used as an information transmission tool, and various files including some important data are very likely to be copied and stolen by lawless persons through the USB connector, which brings great damage to the user.

However, the USB connector of the computer is generally exposed, and the USB connector is prone to dust deposition or water ingress, and the data stored in the computer is not safe.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a robot clamp, which effectively solves the problem that a USB joint is easy to deposit dust and water in the prior art, and simultaneously prevents lawless persons from stealing files through the USB joint to a great extent, and the technical proposal of the solution is that the robot clamp comprises a front end cover of a mainframe box, and is characterized in that a primary confusion device is arranged on the front end cover of the mainframe box, a secondary protection device which is triggered by matching with the primary confusion device, a pushing device and a hidden USB power-on device are included;

the first-stage confusion device comprises a rectangular groove formed in the upper side of a front end cover of a mainframe box, a first rectangular cover plate is arranged in the rectangular groove, a plurality of first damping shafts with axes arranged transversely are evenly arranged at intervals in the extension direction of the upper end of the first rectangular cover plate, a plurality of U-shaped seats with openings facing to the front end are fixedly connected to the upper side of the front end of the rectangular groove, the first damping shafts correspond to the first damping shafts one by one and are rotatably connected with the first damping shafts, a round platform with axes arranged longitudinally is fixedly connected to the lower side of the front end of the first rectangular cover plate, a round hole penetrating through the first rectangular cover plate backwards is formed in the front end of the round platform, a hand-pulling pin is matched in the round hole in a sliding mode, a round column chamber with the diameter larger than that of the round hole is formed in the round platform, a blocking piece matched with the round column chamber in a sliding mode is fixedly connected to the outer edge face of the hand-pulling pin, the separation blade rear end face is connected with the other end of first spring, and a shelving groove has been seted up to first rectangle apron rear end downside, and the vertical sliding fit of shelving inslot has a clamp plate of fixed connection at hand power pin rear end.

Preferably, the second-stage protection device comprises a second rectangular cover plate arranged behind the first rectangular cover plate in parallel, a plurality of second damping shafts with transverse arrangement axes are arranged at the upper end of the second rectangular cover plate in an extending degree direction at uniform intervals, the second damping shafts correspond to the U-shaped seats one to one and are rotatably connected with the U-shaped seats, an elongated groove is formed in the lower side of the front end of the second rectangular cover plate, a long plate is longitudinally and slidably matched in the elongated groove, the front end of the long plate is in contact fit with the rear end of the pressing plate, the lower end of the long plate is connected with one end of a second spring, the bottom surface of the lower end of the elongated groove is connected with the other end of the second spring, a slot is formed in the lower end surface of the rectangular groove, a containing groove is formed in the right side wall of the elongated groove, the upper left side of the containing groove is rotatably connected with the upper end of the inserting strip, the lower end of the inserting strip extends downwards and.

Preferably, the pushing device comprises a plurality of containing chambers which are evenly arranged at intervals in the extension direction of the lower side of the rectangular groove, a sliding groove which is longitudinally arranged is arranged at the rear part of the front end cover of the main case at the lower end of each containing chamber, a USB joint is longitudinally matched and matched in each containing chamber, a vertical rod which is in sliding fit with the sliding groove is fixedly connected at the lower end of each USB joint, the lower end of each vertical rod extends out of the sliding groove and is fixedly connected on the same transverse plate, two optical shafts which are respectively in sliding fit with the left side and the right side of the transverse plate and are longitudinally arranged are fixedly connected on the rear end surface of the front end cover of the main case, a transversely arranged supporting plate is fixedly connected at the rear end of each optical shaft, a servo motor is fixedly connected at the middle part of the rear end of the supporting plate, a longitudinal screw rod driven, the servo motor is controlled by a rocker switch fixedly connected to the lower side of the rear end of the second cover plate.

Preferably, the hidden USB electrifying device comprises an elastic telescopic rod which is fixedly connected to the outer edge face of the second damping shaft on the rightmost side and obliquely extends upwards to point to the inner bottom face of the U-shaped seat, a vertical groove is formed in the inner bottom face of the U-shaped seat on the rightmost side, the upper end of a conductive contact rod is fixedly connected to the upper end of the vertical groove, the lower end of the conductive contact rod is fixedly connected with the upper end of an insulating rod with the same diameter, the lower end of the insulating rod is fixedly connected with the lower end of the vertical groove, an electrifying switch block is in sliding fit on the insulating rod, a plastic elastic piece sleeved on the outer edge face of the conductive contact rod is connected between the upper end of the electrifying switch block and the upper end face of the vertical groove, the left end face and the right end face of the electrifying switch block are in contact fit with the left.

The utility model has the advantages that:

1. the first rectangular cover plate and the second rectangular cover plate are arranged to shield the USB joint in the rectangular accommodating chamber, so that dust or liquid can be prevented from entering the USB interface;

2. the arranged first-level obfuscation device can cause certain breaking barriers to lawbreakers stealing files;

3. the secondary protection device further enhances the protection of the USB joint;

4. the pushing device is controlled by a rocker switch hidden at the rear end of the second rectangular cover plate, and is not easy to be found and triggered, so that the USB joint is in the accommodating chamber, and a copying tool such as a USB flash disk is inconvenient to insert into the USB joint;

5. the hidden USB power-on device is hidden and not easy to trigger, and file safety is guaranteed to a great extent.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a perspective view of the utility model.

Fig. 3 is an enlarged schematic view of the area a in fig. 2 according to the present invention.

Fig. 4 is a schematic bottom view, a full-section and a perspective view of the present invention.

Fig. 5 is an enlarged schematic view of the region B in fig. 4 according to the present invention.

Fig. 6 is a perspective view of the first viewing angle of the second-stage protection device of the present invention.

Fig. 7 is a second perspective view of the second protection device of the present invention.

Fig. 8 is a perspective view of a third perspective of the present invention.

Reference numerals

1. The main case comprises a main case front end cover, 2, a rectangular groove, 3, a first rectangular cover plate, 4, a first damping shaft, 5, a U-shaped seat, 6, a circular table, 7, a hand-pulling pin, 8, a cylindrical chamber, 9, a baffle, 10, a first spring, 11, a pressing plate, 12, a second rectangular cover plate, 13, a second damping shaft, 14, an elongated groove, 15, an elongated plate, 16, a second spring, 17, a slot, 18, a containing groove, 19, a plug strip, 20, a third spring, 21, a containing chamber, 22, a sliding groove, 23, a USB joint, 24, a vertical rod, 25, a transverse plate, 26, an optical axis, 27, a support plate, 28, a servo motor, 29, a longitudinal screw rod, 30, a rocker switch, 31, an elastic telescopic rod, 32, a vertical groove, 33, a conductive contact rod, 34, an insulating rod, 35, a power-on switch block, 36. a plastic spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The embodiment of the utility model provides an in the attached drawing: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.

The following description of the present invention will be made in detail with reference to the accompanying drawings 1 to 8.

The first embodiment adopts the technical scheme that the USB power supply device comprises a main case front end cover 1 and is characterized in that a primary obfuscation device, a secondary protection device which is used by matching with the primary obfuscation device and is triggered, a pushing device and a hidden USB power-on device are arranged on the main case front end cover 1;

the one-stage confusion device comprises a rectangular groove 2 arranged on the upper side of a front end cover 1 of a mainframe box, a first rectangular cover plate 3 is arranged in the rectangular groove 2, a plurality of first damping shafts 4 with axes arranged transversely are evenly arranged at intervals in the extension direction of the upper end of the first rectangular cover plate 3, a plurality of U-shaped seats 5 with openings facing to the front end and corresponding to the first damping shafts 4 one by one and connected with the first damping shafts 4 in a rotating way are fixedly connected to the upper side of the front end of the rectangular groove 2, a round platform 6 with axes arranged longitudinally is fixedly connected to the lower side of the front end of the first rectangular cover plate 3, a round hole penetrating the first rectangular cover plate 3 backwards is arranged at the front end of the round platform 6, a hand-pulling pin 7 is matched in the round hole in a sliding way, a cylindrical chamber 8 with a diameter larger than that of the round hole is arranged in the round platform 6, a blocking piece 9 matched with the cylindrical chamber 8 in a sliding way is fixedly connected to the outer, the bottom surfaces of the two longitudinal grooves are connected with one end of a first spring 10, the rear end surface of the baffle plate 9 is connected with the other end of the first spring 10, a placing groove is formed in the lower side of the rear end of the first rectangular cover plate 3, and a pressing plate 11 fixedly connected to the rear end of the hand-pulling pin 7 is arranged in the placing groove in a longitudinally sliding fit mode. This embodiment is when using, and first rectangle apron 3 is when being in the closed condition, and whole device is sealed in rectangular channel 2, can prevent that external dust or liquid splash from entering into the USB interface, if there is the bad molecule to want to play puzzlement effect through USB interface copy file simultaneously, the concrete expression is: the first rectangular cover plate 3 can be opened only by the hand-pulling pin 7 from the appearance, when a lawbreaker pulls the hand-pulling pin to open the first cover plate, under the damping action of the first damping shaft 4, the first cover plate can only be opened to a set degree, the lawbreaker can not easily see the pressing plate 11 at the rear end of the first rectangular cover plate 3, and the second rectangular cover plate 12 and the long plate 15 are set to be dark color and the long plate 15 is tightly matched with the long groove 14, so that the lawbreaker can not easily find that the long plate 15 is in sliding fit in the long groove 14, which preliminarily confuses the lawbreaker to think about the method of opening the second rectangular cover plate 12, even can not determine whether the USB interface is really behind the second rectangular cover plate 12, if the second rectangular cover plate 12 is really opened, the hand-pulling pin 7 can not directly pull the first rectangular cover plate 3 open, the correct operation mode is that the hand-pulling pin 7 is pressed backwards first, the hand-pulling pin 7 slides backwards along the round hole in the round platform 6, the blocking piece 9 slides backwards along the cylindrical chamber 8 along with the round hole and compresses the first spring 10 to enter the longitudinal groove until the rear end of the blocking piece 9 is contacted with the rear end of the cylindrical chamber 8 and the hand-pulling pin 7 cannot be continuously pressed, at the moment, the pressing plate 11 is separated from the placing groove and presses the long plate 15, at the moment, the hand-pulling pin 7 only needs to be rotated anticlockwise until the hand-pulling pin 7 cannot rotate, and the second rectangular cover plate 12 can be opened along with the first rectangular cover plate 3 by outwards pulling the hand-pulling pin 7.

In the second embodiment, on the basis of the first embodiment, the secondary protection device includes a second rectangular cover plate 12 disposed in parallel behind the first rectangular cover plate 3, a plurality of second damping shafts 13 having axes disposed transversely are disposed at equal intervals in the direction of the extension of the upper end of the second rectangular cover plate 12, the second damping shafts 13 are in one-to-one correspondence with and rotatably connected to the respective U-shaped seats 5, an elongated slot 14 is formed at the lower side of the front end of the second rectangular cover plate 12, a long plate 15 is longitudinally and slidably fitted in the elongated slot 14, the front end of the long plate 15 is in contact fit with the rear end of the pressing plate 11, the lower end of the long plate 15 is connected to one end of a second spring 16, the lower bottom surface of the elongated slot 14 is connected to the other end of the second spring 16, a slot 17 is formed at the lower end surface of the rectangular slot 2, a receiving slot 18 is formed on the right side wall of the elongated slot 14, the upper left side of the receiving slot 18 is rotatably connected to the upper end of an, one end of a third spring 20 is connected to the right end of the insert 19, and the other end of the third spring 20 is connected to the right side wall of the accommodating groove 18. This embodiment is when using, the slot 17 cooperation that the setting was seted up to the cutting 19 and the 2 lower extremes of rectangular channel of setting in the secondary protection device forms the built-in lock, and set up second rectangle apron 12 and long slab 15 to dark and make long slab 15 closely with the cooperation of long slab 14, it is closely to make the 12 edges of second rectangle apron and the cooperation of rectangular channel 2 simultaneously, in addition first rectangle apron 3 can only open certain degree and can influence partly lawless persons field of vision, make this device can mislead lawless persons in certain degree and regard as second rectangle apron 12 as the blind plate, when will opening second rectangle apron 12: the first rectangular cover plate 3 cannot be directly pulled up by the hand-pulling pin 7, the hand-pulling pin 7 should be pressed backwards, the hand-pulling pin 7 slides backwards along the round hole on the round platform 6, the blocking piece 9 slides backwards along the cylindrical chamber 8 along with the blocking piece 9 and compresses the first spring 10 to enter the longitudinal groove until the rear end of the blocking piece 9 contacts with the rear end of the cylindrical chamber 8 and cannot continuously press the hand-pulling pin 7, at the moment, the pressing plate 11 is separated from the placing groove and presses the long plate 15, so that the long plate 15 moves backwards along the long groove 14 and presses the spring, at the moment, the front end face of the long plate 15 is flush with the rear side wall of the accommodating groove 18, at the moment, the hand-pulling pin 7 needs to be rotated anticlockwise to enable the lower end of the pressing plate 11 to be matched with the left end of the inserting strip 19, the pressing plate 11 pushes the inserting strip 19 to rotate around the rotating shaft of the inserting strip 19 and the accommodating groove 18 and presses the second spring 16, and the inserting strip 19 rotates anticlockwise, the, at this time, the lower end part of the pressing plate 11 is also positioned in the accommodating groove 18 and is matched with the left end of the inserting bar 19, the contact surface of the pressing plate 11 and the inserting groove 17 is set to be a rough surface, the friction force between the pressing plate 11 and the inserting groove 17 is larger than the resultant force of the first spring 10 and the second spring 16, at this time, the second rectangular cover plate 12 is not limited by the inserting bar 19 and the inserting groove 17, the second rectangular cover plate 12 is opened along with the first rectangular cover plate 3 when the hand-pulling pin 7 is pulled outwards, but the first rectangular cover plate 3 and the second rectangular cover plate 12 can be opened only at a set angle under the action of the first damping shaft 4 and the second damping shaft 13 respectively, and the exposure of the accommodating chamber 21 is not influenced.

In the third embodiment, on the basis of the first embodiment, the pushing device includes a plurality of receiving chambers 21 uniformly spaced along the extension direction of the lower side of the rectangular groove 2, a sliding groove 22 longitudinally disposed is formed in a portion of the lower end of each receiving chamber 21 located behind the front end cover 1 of the main chassis, a USB connector 23 is longitudinally slidably fitted in each receiving chamber 21, a vertical rod 24 slidably fitted to the sliding groove 22 is fixedly connected to the lower end of each USB connector 23, the lower end of each vertical rod 24 extends out of the sliding groove 22 and is fixedly connected to the same horizontal plate 25, two optical shafts 26 slidably fitted to the left and right sides of the horizontal plate 25 and longitudinally disposed are fixedly connected to the rear end surface of the front end cover 1 of the main chassis, a transversely disposed supporting plate 27 is fixedly connected to the rear end of the two optical shafts 26, a servo motor 28 is fixedly connected to the middle portion of the rear end of the supporting plate 27, a longitudinal lead screw 29 driven by the servo motor 28 is rotatably connected between the, the longitudinal screw 29 is connected with the middle part of the supporting plate 27 by screw thread, and the servo motor 28 is controlled by a rocker switch 30 fixedly connected with the lower side of the rear end of the second cover plate. In this embodiment, the first rectangular cover plate 3 and the second rectangular cover plate 12 are opened and stored to be exposed, but the USB connector 23 is located at the rear inside the storage chamber 21, so that it is not easy for criminals to insert a copying tool such as a data cable or a USB disk into the USB interface, and if the USB connector 23 is intended to be used normally, the USB connector 23 should be moved forward from the storage chamber 21 to facilitate normal use, the specific operations are as follows: firstly, the servo motor 28 is started through the rocker switch 30, the servo motor 28 is started to rotate forward to convey the USB connector 23 by pressing the left end of the rocker switch 30 to be electrified, the servo motor 28 is started to rotate backward to retract the USB connector 23 into the accommodating chamber 21 by pressing the right end of the rocker switch 30 to be electrified, the left end and the right end of the rocker switch 30 are in a flush state and are not electrified, the rocker switch 30 is arranged at the rear end of the second rectangular cover plate 12, the second rectangular cover plate 12 can only be opened to a certain degree, so the rocker switch 30 is not easy to be found by lawless persons, when the USB connector 23 is used, the servo motor 28 is started to rotate forward, the servo motor 28 drives the longitudinal screw rod 29 to rotate forward, the transverse plate 25 moves forward along the optical axis 26 under the action of the longitudinal screw rod 29, each USB connector 23 is fixedly connected with the transverse plate 25 through the vertical rod 24 to extend out of the accommodating chamber 21 in, when the USB connector 23 is moved to the proper position, the rocker switch 30 can be turned off, and when the USB connector 30 is used up, the servo motor 28 can be turned over by pressing the right end of the rocker switch 30 to be powered on, and the USB connector 23 is driven to reset into the accommodating chamber 21 again, and then the rocker switch 30 is turned off.

Fourth embodiment, on the basis of first embodiment, hide USB circular telegram device and include that fixed connection just upwards stretches out and directional U type seat 5 in the elastic expansion link 31 of bottom surface on the second damping shaft 13 outer fringe face on rightmost side, a perpendicular groove 32 has been seted up to the bottom surface in the U type seat 5 on rightmost side, the upper end of a vertical groove 32 upper end fixedly connected with electrically conductive feeler lever 33, the lower extreme fixedly connected with of electrically conductive feeler lever 33 has the upper end of an insulator spindle 34 that the diameter is the same, the lower extreme of insulator spindle 34 and perpendicular groove 32 lower extreme fixed connection, sliding fit has a circular telegram switch block 35 on the insulator spindle 34, it establishes the plastics elastic component 36 on electrically conductive feeler lever 33 outer fringe face to be connected with the cover between circular telegram switch upper end and the perpendicular groove 32 up end, circular telegram switch block 35 about both ends face respectively with perpendicular groove 32 contact fit, circular telegram switch block 35 front end is for can with elastic expansion link 31 complex arcwall and stretch out outside the perpendicular groove 32. In the embodiment, when a criminal breaks the pushing device to make the USB connector 23 protrude out of the accommodating chamber 21, but the USB connector 23 is not powered on at this time, so that the criminal cannot continue to perform illegal activities, if the USB connector 23 needs to be powered on and the criminal normally uses the hidden USB power-on device, the hidden USB power-on device is hidden and is not easy to trigger. The working mode of the hidden USB power-on device is as follows: because the second damping shaft 13 rotates clockwise during the opening process of the second rectangular cover plate 12, the elastic expansion link 31 will also rotate around the central axis of the second damping shaft 13 along with the rightmost second damping shaft 13, during the process, the extending end of the elastic expansion link 31 will gradually cooperate with the arc-shaped surface of the power-on switch block 35 to contract, when the elastic expansion link 31 is disengaged from the power-on switch block 35 as the second damping shaft 13 continues to rotate clockwise, the extending end of the elastic expansion link 31 does not extend below the power-on switch block 35 under the restriction action of the power-on switch block 35, the exterior of the power-on switch block 35 is made of insulating material, the contact part between the interior of the power-on switch block 35 and the insulating rod 34 is a normally open electric contact, when the second rectangular cover plate 12 is opened to the maximum, the extending end of the elastic expansion link 31 is below the power-on switch block 35, at this time, if the USB connector 23 is energized to normally use, the second rectangular cover plate 12 should be slightly closed, at this moment, the elastic telescopic rod 31 rotates counterclockwise along with the second damping shaft 13, and the elastic telescopic rod 31 cooperates with the lower end of the power-on switch block 35 and pushes the power-on switch block 35 to slide upwards along the insulating rod 34 and compress the plastic elastic member 36, so that the power-on switch block 35 cooperates with the conductive contact rod 33 to connect with the circuit of the USB connector 23, at this moment, the USB connector 23 can be normally used, the power-on mode is triggered by closing the second rectangular cover plate 12 to a small extent, the power-on mode is not easy to be perceived, the safety factor is high, when the second rectangular cover plate 12 is covered after use, the elastic telescopic rod 31 disengages from the power-on switch block 35, the power-on switch block 35 resets under the action of the plastic elastic member 36, and the USB connector 23 is powered off again.

This device practicality finishes to close first rectangle apron 3 and second rectangle apron 12 back together, and one-level puzzlement device and second grade protector can reset to clockwise rotation hand power pin 7, and hand power pin 7 and long board 15 and cutting 19 can reset under first spring 10 and second spring 16 and third spring 20 effect respectively.

Claims

1. The computer accessory protection device comprises a main case front end cover (1) and is characterized in that a primary obfuscation device, a secondary protection device, a pushing device and a hidden USB power-on device are arranged on the main case front end cover (1), and the secondary protection device is triggered by matching with the primary obfuscation device;

the one-level confusion device comprises a rectangular groove (2) formed in the upper side of a front end cover (1) of a mainframe box, a first rectangular cover plate (3) is arranged in the rectangular groove (2), a plurality of first damping shafts (4) with axes transversely arranged are uniformly arranged at intervals in the extension direction at the upper end of the first rectangular cover plate (3), a plurality of round tables (6) with axes longitudinally arranged are fixedly connected to the upper side of the front end of the rectangular groove (2), the round tables correspond to the first damping shafts (4) one by one and are rotatably connected with the first damping shafts (4), a round hole penetrating through the first rectangular cover plate (3) backwards is formed in the front end of each round table (6), a hand-pulling column pin (7) is matched in the round hole in a sliding mode, a round column chamber (8) with a diameter larger than the round hole is formed in each round table (6), a blocking piece (9) in sliding fit with the round column chamber (8) is fixedly connected to the outer edge face of each hand-pulling column pin (7), longitudinal grooves are respectively formed in the left side and the right side of the rear end of the cylindrical chamber (8), one end of a first spring (10) is connected to the bottom surfaces of the two longitudinal grooves, the rear end face of the separation blade (9) is connected with the other end of the first spring (10), a placing groove is formed in the lower side of the rear end of the first rectangular cover plate (3), and a pressing plate (11) fixedly connected to the rear end of the hand-pulling pin (7) is arranged in the placing groove in a longitudinally sliding fit mode.

2. The computer accessory protection device according to claim 1, wherein the secondary protection device comprises a second rectangular cover plate (12) arranged in parallel behind the first rectangular cover plate (3), a plurality of second damping shafts (13) with transverse axes are arranged at intervals in the extension direction of the upper end of the second rectangular cover plate (12), the second damping shafts (13) correspond to the U-shaped seats (5) one by one and are rotatably connected with the U-shaped seats, an elongated groove (14) is formed in the lower side of the front end of the second rectangular cover plate (12), a long plate (15) is longitudinally and slidably matched in the elongated groove (14), the front end of the long plate (15) is in contact fit with the rear end of the pressure plate (11), the lower end of the long plate (15) is connected with one end of a second spring (16), the lower bottom surface of the elongated groove (14) is connected with the other end of the second spring (16), an insertion groove (17) is formed in the lower end surface of the rectangular groove (2), the right side wall of the long-shaped groove (14) is provided with a containing groove (18), the upper left side of the containing groove (18) is rotatably connected with the upper end of the inserting strip (19), the lower end of the inserting strip (19) extends downwards and is inserted into the inserting groove (17), the right end of the inserting strip (19) is connected with one end of a third spring (20), and the right side wall of the containing groove (18) is connected with the other end of the third spring (20).

3. The computer accessory protection device according to claim 1, wherein the pushing device comprises a plurality of receiving chambers (21) uniformly spaced along the extension direction of the lower side of the rectangular groove (2), a sliding slot (22) longitudinally arranged is formed in the rear portion of the front end cover (1) of the main case at the lower end of each receiving chamber (21), a USB connector (23) is longitudinally and slidably fitted in each receiving chamber (21), a vertical rod (24) slidably fitted with the sliding slot (22) is fixedly connected to the lower end of each USB connector (23), the lower end of each vertical rod (24) extends out of the sliding slot (22) and is fixedly connected to the same transverse plate (25), two optical shafts (26) slidably fitted with the left side and the right side of the transverse plate (25) and longitudinally arranged are fixedly connected to the rear end face of the front end cover (1) of the main case, a supporting plate (27) transversely arranged is fixedly connected to the rear ends of the two optical shafts (26), the middle part of the rear end of the supporting plate (27) is fixedly connected with a servo motor (28), a longitudinal screw rod (29) driven by the servo motor (28) is rotatably connected between the supporting plate (27) and the rear end face of the front end cover (1) of the mainframe box, the middle part of the longitudinal screw rod (29) is in threaded connection with the supporting plate (27), and the servo motor (28) is controlled by a rocker switch (30) fixedly connected to the lower side of the rear end of the second cover plate.

4. The computer accessory protection device according to claim 1, wherein the hidden USB power-on device comprises an elastic telescopic rod (31) fixedly connected to the outer edge surface of the rightmost second damping shaft (13), extending obliquely upward and pointing to the inner bottom surface of the U-shaped seat (5), a vertical groove (32) is formed in the inner bottom surface of the rightmost U-shaped seat (5), the upper end of the vertical groove (32) is fixedly connected with the upper end of a conductive contact rod (33), the lower end of the conductive contact rod (33) is fixedly connected with the upper end of an insulating rod (34) with the same diameter, the lower end of the insulating rod (34) is fixedly connected with the lower end of the vertical groove (32), a power-on switch block (35) is slidably matched on the insulating rod (34), a plastic elastic piece (36) sleeved on the outer edge surface of the conductive contact rod (33) is connected between the upper end of the power-on switch and the upper end surface of the vertical groove (32), the left and right surfaces of the power-on switch block (35) are respectively in contact fit with the left and right side, the front end of the power-on switch block (35) is an arc surface which can be matched with the elastic telescopic rod (31) and extends out of the vertical groove (32).