CN110955303B

CN110955303B - USB port locking device

Info

Publication number: CN110955303B
Application number: CN201911113940.0A
Authority: CN
Inventors: 尹学兵; 陈昆; 何鑫涛; 胡得圣; 唐顺国; 陈建昆; 杨涛; 胡兴海; 杨光; 徐平; 周仕新; 刘钦; 尹贵伦
Original assignee: Guizhou Power Grid Co Ltd
Current assignee: Guizhou Power Grid Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2022-05-24
Anticipated expiration: 2039-11-14
Also published as: CN110955303A

Abstract

The invention discloses a USB port locking device, when the locking device is inserted into a USB port, a locking wheel rolls to the outer edge and extends out of a locking hole to press the side surface of the USB port to lock a blocking block, because of the arrangement of a limiting mechanism, the locking wheel can only roll when entering and can not rotate when being pulled out, so that the blocking block can physically block the USB port, thereby basically preventing virus infection and important information loss of an external invader and having high reliability. When the roller locking device is used again, the two rollers are moved out of the locking hole, so that the locking device can be pulled out, the working efficiency is not influenced, and the roller locking device is more convenient.

Description

USB port locking device

Technical Field

The invention relates to the technical field of USB port plugging, in particular to a USB port locking device.

Background

Many companies and enterprises generally do not allow employees to connect external USB disks or other USB devices to computers at will, taking into account information security and virus threats. At present, computer users can only be educated with safety awareness under most conditions, and because the USB interface on the computer is exposed and is convenient to plug and unplug, the phenomenon of misconnection caused by neglecting or forgetting of some people still can occur, and a good forbidden effect cannot be achieved, so that some companies prevent equipment connection in a software or adhesive tape sealing mode, but the reliability is not high. Some companies also adopt a mode of destroying or removing the USB interface on the computer, so that although the phenomenon of misconnection can be avoided, once an external device needs to be connected through the USB interface, the USB interface cannot be used immediately, and needs to be repaired or installed again, which delays time, affects working efficiency, and is inconvenient.

Disclosure of Invention

In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a USB port lockout device.

In order to overcome the defects of the prior art, the technical scheme provided by the invention is as follows:

the invention provides a USB port locking device which is characterized by comprising an outer frame and an inner structure, wherein the outer frame is provided with a rectangular frame structure corresponding to the shape and the size of a USB port, the inner structure comprises a blocking block and a locking part, the blocking block is matched with the USB port in size and shape, the locking part comprises two locking wheel assemblies, each locking wheel assembly comprises at least one locking wheel which is eccentrically arranged, two sides of the outer frame are provided with a pair of locking holes, each locking wheel can only roll when being connected to the USB port, the outer edge of each locking wheel extends out of the corresponding locking hole to press the side surface of the USB port, each locking wheel assembly further comprises a limiting mechanism for preventing the locking wheel from rotating, each limiting mechanism comprises a rotating shaft for mounting the locking wheel, each rotating shaft is provided with a torsion spring, and a limiting clamp is arranged above the torsion spring, and the locking wheel is provided with a limiting lug matched with the limiting clamp.

Compared with the prior art, the invention has the beneficial effects that:

When the locking device is inserted into the USB port, the locking wheel rolls to the outer edge and extends out of the locking hole to press the side surface of the USB port to lock the blocking block, and the locking wheel can only roll when entering and cannot rotate when being pulled out because of the limit mechanism, so that the blocking block can physically block the USB port, virus infection and important information loss of an external invader are basically prevented, and the reliability is high. When the locking device is used again, the two locking wheels are moved out of the locking hole, so that the locking device can be pulled out, the working efficiency is not influenced, and the locking device is convenient to use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a perspective view of a USB port blockade device according to an embodiment of the present invention;

FIG. 2 is a perspective view of the internal structure of the USB port blockade device according to the embodiment of the present invention;

FIG. 3 is an exploded view of the internal structure of the USB port blockade device according to the embodiment of the present invention;

FIG. 4 is a mating view of an unlocking component and a locking component provided in accordance with an embodiment of the present invention;

fig. 5 is a perspective view of an unlocking member provided in an embodiment of the present invention.

In the figure: 1-outer frame, 11-lock hole, 2-inner structure, 21-stop block, 211-mounting groove, 22-locking part, 221-locking wheel component, 2211-locking wheel, 2212-rotating shaft, 2213-torsion spring, 2214-limit card, 2215-limit lug, 222-guide component, 2221-connecting rod, 2222-first spring, 2223-stop block, 2224-sliding block, 2225-spring mounting seat, 2226-second spring, 2227-fixed block, 223-locking component, 2231-universal connecting piece, 22311-universal joint, 22312-first connecting plate, 22313-second connecting plate, 2232-elastic lock, 22321-lock body, 22322-lock core, 2233-arc piece, 3-unlocking part, 31-mounting seat, 311-chute, 32-connecting rod, 33-fastening bolt.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As mentioned in the background, many companies and enterprises generally do not allow employees to connect external USB disks or other USB devices to computers at will, taking into account information security and virus threats. At present, in most cases, only safety consciousness education can be carried out on computer users, and as the USB interface on the computer is exposed and is convenient to plug and unplug, the phenomenon of misconnection caused by neglecting or forgetting of part of people still occurs, and a good forbidden effect cannot be achieved; therefore, some devices are prevented from being connected in a software or tape sealing mode, but the reliability is not high, and some companies also adopt a mode of destroying or detaching a USB interface on a computer, so that although the phenomenon of misconnection can be avoided, once an external device needs to be connected through the USB interface, the USB interface cannot be used immediately, and needs to be repaired or installed again, so that the time is delayed, the working efficiency is influenced, and inconvenience is brought.

Therefore, how to effectively prevent the connection of external equipment without destroying or removing the USB interface is an improvement direction of the application, and the idea of the application is to lock the blocking component in the USB interface by arranging the blocking component and only allow a specific person to open the blocking component, thereby providing a USB port locking device.

Referring to fig. 1 to 3, a specific structure of the USB port blocking device of the present embodiment is shown. The device comprises an outer frame 1 and an inner structure 2, wherein the outer frame 1 is provided with a rectangular frame structure corresponding to the shape and the size of a USB port, the inner structure 2 comprises a blocking block 21 and a locking part 22, the blocking block 21 is matched with the USB port in shape and size, the locking part 22 comprises two locking wheel assemblies 221, each locking wheel assembly 221 comprises a locking wheel 2211 which is eccentrically arranged, a pair of locking holes 11 are formed in two sides of the outer frame 1, and the outer edge of each locking wheel 2211 can roll to extend out of the locking holes 11 to press the side surface of the USB port when the locking wheel 2211 is connected to the USB port. Preferably, the locking wheel 2211 is positioned adjacent to the end of the stopper 21 that first enters the USB port.

The locking wheel 2211 presses the side surface of the USB port, in order to prevent the USB port from being easily pulled out, the locking wheel assembly 221 further includes a limiting mechanism for preventing the locking wheel 2211 from rotating, the limiting mechanism includes a rotating shaft 2212 for installing the locking wheel 2211, a torsion spring 2213 is arranged on the rotating shaft 2212, a limiting card 2214 is arranged above the torsion spring 2213, and a limiting bump 2215 matched with the limiting card 2214 is arranged on the locking wheel 2211. The locking wheel 2211 can only roll when entering, and the limit card 2214 blocks the limit bump 2215 when being pulled out, so that the tightening wheel cannot rotate, and the block 21 can physically block the USB port.

When the USB port is reused, the locking device needs to be removed, so the distance between the two locking wheels 2211 can be changed by external force, for example, an elastic member is installed between the rotating shafts 2212 of the two locking wheels 2211, or an elastic member is installed between the rotating shaft 2212 and the installation part of the rotating shaft 2212, so that the relative position of the installation part and the stopper 21 is fixed. The locking device can be pulled out by using a tool to push the two rotating shafts 2212 to approach each other.

It is preferable that a guide assembly 222 is added to the locking part 22, the guide assembly 222 includes a connecting rod 2221, the locking wheel 2211 is mounted on the connecting rod 2221, two mounting slots 211 are formed on both sides of the stopper 21, the two connecting rods 2221 are respectively disposed in the mounting slots 211, the width of the mounting slots 211 is greater than that of the connecting rods 2221, and a first spring 2222 is connected between each connecting rod 2221 and a side wall of the mounting slot 211. Pulling out the locking device can also be achieved by toggling the two links 2221 to compress the first spring 2222 towards each other.

In addition, a stop block 2223 is arranged at the upper part of one end, far away from the locking wheel, of the connecting rod 2221, a mounting gap is formed between the two stop blocks 2223, a sliding block 2224 is arranged in the mounting gap, a spring mounting seat 2225 is arranged on one side, close to the locking wheel, of the sliding block 2224, a second spring 2226 is arranged on the spring mounting seat 2225, the other end of the second spring 2226 is connected with a fixed block 2227 arranged on the stop block, the second spring 2226 is in a compressed state, so that the sliding block 2224 is elastically abutted to the mounting gap, the first spring 2222 is in a stretched state between the connecting rod 2221 and the inner side wall of the mounting groove 211, and the elasticity of the second spring 2226 is greater than that of the first spring 2222.

The sliding block 2224 blocks the stoppers 2223 at two sides of the installation gap, so as to push the sliding block 2224 to move towards the USB port, the two stoppers 2223 will approach each other under the traction of the first tension spring of the spring, and in order to ensure that the moving distances of the two stoppers 2223 are equal, it is necessary that the sliding directions of the sliding block 2224 are on a straight line, and the extending direction of the straight line is perpendicular to the moving direction of the stoppers 2223 and is located between the two stoppers 2223. The slider 2224 is provided with a guide groove, the stop block 21 is provided with a guide rail matched with the guide groove, the guide rail and the guide groove are arranged along the moving direction of the slider 2224, the guide rail is arranged on a connecting block in the stop block 21, and the connecting block is detachably connected with the stop block 21.

The locking component 22 further includes a locking member 223, the locking member 223 includes a universal joint 2231 and an elastic lock 2232, the universal joint 2231 includes a universal joint 22311, and a first connecting plate 22312 and a second connecting plate 22313 provided at two ends of the universal joint 22311, a movable gap is provided at a front end of the elastic lock 2232, the second connecting plate 22313 is provided in the movable gap, the first connecting plate 22312 abuts against the slider 2224, the second connecting plate 22313 abuts against a lock cylinder 22322 of the elastic lock 2232, and the lock cylinder 22322 is elastically clamped in a lock hole on the lock 22321. The lock core 22322 is symmetrically arranged at two sides of the second connecting plate 22313 to ensure that the second connecting plate 22313 is in a horizontal state.

Referring to fig. 4 and 5, the locking device further includes an unlocking component 3, the unlocking component 3 includes a mounting seat 31 and a corresponding number of connecting rods 32 of the lock cylinder 22322, the connecting rods 32 are fixedly connected to the mounting seat 31, and when the connecting rods 32 are inserted into the lock holes to push the lock cylinders 22322, the lock cylinders 22322 can push the second connecting plates 22313 to translate forward. When the second connecting plate 22313 is pushed, the force-bearing positions and the force-bearing sizes on both sides of the second connecting plate 22313 need to be kept consistent, otherwise the universal joint 22311 will be in a rotating state, and cannot apply force to the first connecting plate 22312, and further cannot push the slider 2224 to move towards the inside of the USB port, so that the stopper 2223 cannot move inwards, and the locking wheel 2211 arranged on the connecting rod 2221 still compresses the side surface of the USB end.

In order to ensure a good connection and matching with the stop 2223 and prevent the stop 2223 from being jammed during its movement, it is preferable that the sliding block 2224 has a triangular shape, the inner side of the stop 2223 is provided with a guide surface closely contacting with the side surface of the triangular shape, and the top of the triangular shape extends out of the installation gap. Meanwhile, in order to ensure the reliability of the contact between the sliding block 2224 and the universal connecting piece 2231 and prevent the top of the triangle from being worn due to long-term use, an arc-shaped piece 2233 matched with the top of the triangle is arranged between the first connecting plate 22312 and the sliding block 2224, so that the sliding block 2224 is always positioned in the arc-shaped piece 2233, the contact surface between the sliding block 2224 and the arc-shaped piece 2233 is large, and the wear is greatly reduced.

The mounting seat 31 is provided with a sliding groove 311, the connecting rod 32 is arranged in the sliding groove 311, the connecting rod 32 is provided with a fastening bolt 33, and the fastening bolt 33 is used for locking the position of the connecting rod in the sliding groove 311 so as to determine the length of the part of each connecting rod 2221 extending out of the mounting seat 31. The part of each connecting rod 32 extending out of the mounting seat 31 can be spliced with the lock cylinder 22322 corresponding to the lock hole to form a push rod with the same length, and the length of the connecting rod 32 is obtained by a set unitary function relation between the length of the connecting rod and the length of the lock cylinder 22322, for example: y 2x +3 this kind, x is the length of lock core, and y is the length that corresponds the connecting rod, specifically can set as the length mark of representing the lock core on the lock body with x, and y is the scale interval that corresponds the part that the connecting rod needs stretch out the mount pad when unblanking, finds y through substituting the above-mentioned unitary function relational expression with the x that reads, adjusts the position of connecting rod and locks according to y. The first connecting plate 22312 cannot be pushed forward without knowing the length of the lock cylinder 22322.

The lock body 22321 is fixedly arranged on the blocking block 21, the lock hole is arranged on the mounting part at the front end of the lock body 22321, a containing cavity is arranged behind the mounting part, and the containing cavity is the same as the mounting seat 31 in shape and size. When unlocking, the mounting seat 31 is inserted into the containing cavity, the unlocking component 3 is limited in the containing cavity, and the connecting rod 32 is prevented from being bent due to unbalanced force, so that the unlocking efficiency is prevented from being influenced.

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A USB port blocking device is characterized by comprising an external frame and an internal structure, the outer frame has a rectangular frame structure corresponding to the size and shape of the USB port, the inner structure includes a stopper and a locking part, the stop block is adaptive to the size and the shape of the USB port, the locking component comprises two locking wheel components, the locking wheel component comprises at least one eccentrically arranged locking wheel, a pair of lock sealing holes are arranged on two sides of the outer frame, the locking wheel can only roll when being connected to the USB port until the outer edge of the locking wheel extends out of the locking hole to press the side surface of the USB port, the locking wheel assembly also comprises a limiting mechanism for preventing the locking wheel from rotating, the limiting mechanism comprises a rotating shaft for mounting the locking wheel, the rotating shaft is provided with a torsion spring, a limiting clamp is arranged above the torsion spring, and the locking wheel is provided with a limiting lug matched with the limiting clamp.

2. The USB port blocking device according to claim 1, wherein the locking member further includes a guiding component, the guiding component includes a connecting rod, the locking wheel is installed on the connecting rod, two mounting slots are installed on two sides of the blocking block, the two connecting rods are respectively installed in the mounting slots, the width of the mounting slot is greater than that of the connecting rod, and a first spring is connected between each connecting rod and the side wall of the mounting slot.

3. The USB port locking device according to claim 2, wherein a stopper is disposed on an upper portion of an end of the connecting rod away from the locking wheel, a mounting gap is formed between the two stoppers, a slider is disposed in the mounting gap, a spring mounting seat is disposed on a side of the slider close to the locking wheel, a second spring is disposed on the spring mounting seat, another end of the second spring is connected to a fixed block disposed on the stopper, the second spring is in a compressed state, so that the slider elastically abuts against the inside of the mounting gap, the second spring is in a compressed state when being located between the connecting rod and the outer side wall of the mounting groove and/or is in a stretched state when being located between the connecting rod and the inner side wall of the mounting groove, and elasticity of the second spring is greater than elasticity of the first spring.

4. The USB port locking device according to claim 3, wherein the sliding block has a guide groove, the blocking block has a guide rail matching with the guide groove, the guide rail and the guide groove are both arranged along the moving direction of the sliding block, the guide rail is arranged on a connecting block in the blocking block, and the connecting block is detachably connected with the blocking block.

5. The USB port blocking device according to claim 3 or 4, wherein the sliding block is triangular, the inner side of the stopper is provided with a guiding surface closely contacting with the side surface of the triangle, and the top of the triangle extends out of the installation gap.

6. The USB port blocking device according to claim 5, wherein the locking member further includes a locking member, the locking member includes a universal joint and a resilient lock, the universal joint includes a universal joint and a first connecting plate and a second connecting plate disposed at two ends of the universal joint, a clearance is disposed at a front end of the resilient lock, the second connecting plate is disposed in the clearance, the first connecting plate abuts against the slider, the second connecting plate abuts against the lock cylinder of the resilient lock, and the lock cylinder is resiliently engaged in the lock hole of the lock body.

7. The USB port locking device according to claim 6, further comprising an unlocking member, wherein the unlocking member comprises a mounting seat and a number of connecting rods corresponding to the number of the lock cylinders, the connecting rods are fixedly connected to the mounting seat, and when the connecting rods are inserted into the lock holes to push the lock cylinders, the lock cylinders can push the second connecting plates to translate forwards.

8. The USB port blocking device of claim 7, wherein: the connecting rod is arranged in the sliding groove, a fastening bolt is arranged on the connecting rod, and the fastening bolt is used for locking the position of the connecting rod in the sliding groove so as to determine the length of the part of each connecting rod extending out of the mounting seat.

9. The USB port blocking device according to claim 8, wherein the portion of each connecting rod extending out of the mounting seat is spliced with the lock cylinder corresponding to the lock hole to form a push rod with the same length, and the length of the connecting rod is obtained by a set univariate function relation between the length of the connecting rod and the length of the lock cylinder.

10. The USB port locking device according to claim 9, wherein the lock body is fixedly disposed on the blocking block, the locking hole is disposed on an installation portion at a front end of the lock body, a cavity is disposed behind the installation portion, and the cavity is the same as the installation seat in shape and size.