USB interface lock and key thereof

Abstract

The utility model relates to a USB interface lock and a key thereof.The USB interface lock comprises an insertion part used for being inserted into a USB interface and an outer clamping plate arranged at the outer end of the insertion part, the insertion part comprises a first insertion plate and a second insertion plate which are oppositely arranged, and a mounting groove penetrating through the inner side and the outer side of the first insertion plate is formed in the first insertion plate; two locking rods are connected to the side wall, away from the outer clamping plate, of the mounting groove, locking barbs are arranged on the outer sides of the ends, close to the outer clamping plate, of the locking rods, an unlocking cross beam is connected between the two locking rods, and an unlocking hole opposite to the unlocking cross beam in position is formed in the outer clamping plate. According to the USB interface lock, the safety of the USB interface can be protected, and after a key is matched, the USB interface lock is convenient to mount and dismount.

Description

Technical Field

[0001] The present application relates to the field of communication connection elements, and in particular to a USB interface lock and a key thereof. Background Art

[0002] Because USB ports are unified, it is convenient and quick for people to export data in the device when they need to. There is no need to prepare a data cable with a special port. Only a data cable with a USB plug is needed to achieve the purpose of series connection. After that, the data on the device can be exported through the data cable with a USB plug.

[0003] At present, the USB interfaces of computers on the market are usually exposed to the outside, which may cause certain information security risks. Therefore, in order to ensure the security of data in the computer, many computer users will seal or lock the redundant USB interfaces on the computer.

[0004] Therefore, there is an urgent need for a safe and reliable USB interface lock and a matching key to protect the safety of the USB interface. Utility Model Content

[0005] The purpose of the present application is to provide a USB interface lock and a key thereof, which can protect the security of the USB interface and is easy to install and disassemble after being equipped with a key.

[0006] The USB interface lock provided by the present application adopts the following technical solution:

[0007] A USB interface lock comprises an insertion part for inserting into a USB interface and an external card plate arranged at the outer end of the insertion part, the insertion part comprises a first insertion plate and a second insertion plate arranged opposite to each other, the first insertion plate is provided with a mounting groove penetrating the inside and outside of the first insertion plate, two locking rods are connected to the side wall of the mounting groove away from the external card plate, locking barbs are arranged on the outer side of one end of the locking rod close to the external card plate, an unlocking beam is connected between the two locking rods, and an unlocking hole opposite to the unlocking beam is provided on the external card plate.

[0008] As a preferred technical solution of the present application, the first insertion plate is configured as a rectangular plate, the mounting groove is configured as a rectangular groove, and the side wall of the mounting groove is parallel to the edge of the corresponding first insertion plate.

[0009] As a preferred technical solution of the present application, the upper and lower side surfaces of the locking rod are coplanar with the upper and lower side surfaces of the first insertion plate, the inner side surface of the unlocking beam facing the second insertion plate is coplanar with the inner side surface of the first insertion plate, and the thickness of the unlocking beam is less than the thickness of the locking rod.

[0010] As a preferred technical solution of the present application, the surface of the unlocking beam facing the unlocking hole is arranged as an inclined surface, and the thickness of the unlocking beam gradually decreases toward the unlocking hole.

[0011] As a preferred technical solution of the present application, two locking rods are arranged on the side wall of the installation groove connected to the locking rod, and a key slot is formed between the locking rod and the locking rod, and the key slot is located within the projection range of the unlocking hole.

[0012] As a preferred technical solution of the present application, the inner side surface of the locking rod facing the second insertion plate is coplanar with the inner side surface of the first insertion plate, the thickness of the locking rod is greater than the thickness of the unlocking beam, and a locking groove is provided on the side of the locking rod facing the key slot.

[0013] As a preferred technical solution of the present application, a connecting plate is connected between the first insert plate and the second insert plate, and a positioning hole penetrating the inside and the outside is opened on the second insert plate.

[0014] The key of a USB interface lock provided by the present application adopts the following technical solution:

[0015] A key for a USB interface lock comprises a key handle and two unlocking rods arranged at the ends of the key handle. The unlocking rods can be inserted into the USB interface lock through unlocking holes on an external card plate to unlock the lock.

[0016] As a preferred technical solution of the present application, pull-out portions are provided on opposite sides of the two unlocking levers.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. The USB interface lock of the present application can be quickly inserted into the USB interface, and the locking barbs are stuck in the USB interface and are not easily pulled out, thereby effectively protecting the USB interface. The external card board is stuck on the outside of the USB interface, avoiding the situation where the USB interface lock is inserted too deeply and cannot be pulled out, making the USB interface lock safer and more reliable.

[0019] 2. The positioning rod and the locking rod can guide the key to be inserted accurately, thereby realizing the precise and rapid opening of the USB interface lock.

[0020] 3. A positioning hole is provided on the second insertion plate to increase the friction for the USB interface lock to be positioned and the difficulty of removing the USB interface lock, while reducing the production materials of the USB interface lock.

[0021] 4. A locking groove is provided on the locking rod to cooperate with the pull-out part on the key. When the key is used to unlock, the pull-out part can be stuck in the locking groove. While unlocking, the USB interface lock can be directly pulled out with the key, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the interface lock in the embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the structure of the interface lock from another angle in an embodiment of the present application;

[0024] Figure 3 It is a schematic diagram of the structure of the key in the embodiment of the present application;

[0025] Figure 4 This is a schematic diagram of a state in which a key is inserted into a USB interface lock in an embodiment of the present application;

[0026] In the figure, 1. outer card plate; 11. unlocking hole; 2. first insertion plate; 21. mounting slot; 22. locking rod; 23. locking barb; 24. unlocking beam; 25. positioning rod; 26. key slot; 27. positioning slot; 3. second insertion plate; 31. positioning hole; 4. connecting plate; 5. key handle; 6. unlocking rod; 61. pull-out part. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0028] Embodiment: This application proposes a USB interface lock, referring to Figure 1-2 The USB interface lock includes an insertion part and an external card plate 1. The insertion part is used to be inserted into the USB interface and can be stuck in the USB interface. The external card plate 1 is connected to the outer end of the insertion part and is stuck on the outside of the USB interface to prevent the entire interface lock from completely entering the USB interface and being unable to be taken out.

[0029] The outer card plate 1 is configured as a rectangular plate, and a lock hole 11 parallel to the long side is provided on the plate body. The lock hole 11 is in the shape of an elongated strip, and is located on one side of the center axis in the length direction of the outer card plate 1, and is symmetrical about the center axis in the width direction of the outer card plate 1.

[0030] The insertion part includes a first insertion plate 2 and a second insertion plate 3 which are arranged opposite to each other, and two connecting plates 4. The first insertion plate 2 and the second insertion plate 3 are both rectangular plates, and together with the two connecting plates 4, form a rectangular tube structure. The two connecting plates 4 are respectively connected between the ends of the first insertion plate 2 and the second insertion plate 3. The lengths of the first insertion plate 2 and the second insertion plate 3 are the same as the length of the outer card plate 1, and the end faces of the first insertion plate 2 and the second insertion plate 3 are coplanar with the end face of the outer card plate 1. The width of the connecting plate 4 is smaller than the width of the outer card plate 1, so that the outer card plate 1 protrudes outward from the outer surface of the first insertion plate 2, and the outer side surface of the second insertion plate 3 is coplanar with the end face of one long side of the outer card plate 1.

[0031] The first insert plate 2 is provided with a mounting groove 21 that passes through the inside and outside of the first insert plate 2. The mounting groove 21 is set as a rectangular groove. The side wall of the mounting groove 21 is parallel to the edge of the corresponding first insert plate 2. Two locking rods 22 are vertically connected to the side wall of the mounting groove 21 away from the outer card plate 1. The two locking rods 22 are parallel to the other two opposite side walls of the mounting groove 21, and there is an equal-width gap between the locking rods 22 and the adjacent parallel side walls. The upper and lower side surfaces of the locking rods 22 are coplanar with the upper and lower side surfaces of the first insert plate 2.

[0032] A locking barb 23 is provided on the outer side of one end of the locking rod 22 close to the outer card plate 1. The locking barb 23 is configured as a wedge-shaped block integrally formed with the locking rod 22, and its thickness gradually increases towards the direction close to the outer card plate 1. The locking barb 23 is used to be stuck in the USB interface.

[0033] An unlocking beam 24 is connected between the ends of the two locking rods 22. The unlocking beam 24 is opposite to the unlocking hole 11 opened on the outer card plate 1 in inner and outer positions. The inner side surface of the unlocking beam 24 facing the second insertion plate 3 is coplanar with the inner side surface of the first insertion plate 2. In this embodiment, the thickness of the unlocking beam 24 is less than the thickness of the locking rod 22, and the surface of the unlocking beam 24 facing the unlocking hole 11 is set as an inclined surface, which can be an inclined plane or a curved surface, so that the thickness of the unlocking beam 24 gradually decreases towards the unlocking hole 11. From the perspective of the unlocking hole 11 to the insertion part, the unlocking beam 24 can block half the width of the unlocking hole 11.

[0034] Two locking rods 25 are vertically connected to the side wall of the mounting groove 21 connecting the lock rod 22. The two locking rods 25 are located between the two lock rods 22, and a gap is provided between the two locking rods 25. A key slot 26 is formed between the locking rod 25 and its adjacent lock rod 22, and the key slot 26 is located within the projection range of the unlocking hole 11. The inner side surface of the locking rod 25 facing the second insertion plate 3 is coplanar with the inner side surface of the first insertion plate 2. The thickness of the locking rod 25 is greater than the thickness of the unlocking cross beam 24 and less than the thickness of the lock rod 22. A locking groove 27 is provided on the side surface of the locking rod 25 facing the key slot 26. The bottom surface of the locking groove 27 is arc-shaped and penetrates to the side surface of the locking rod 25 away from the second insertion plate 3.

[0035] In this embodiment, the distance between the opposite sides of the two locking rods 25 can be set to different sizes as needed. In this embodiment, it can be set to 1.7 mm, 2.0 mm or 2.6 mm. Different sizes correspond to different keys.

[0036] The second insert plate 3 is provided with two positioning holes 31 penetrating through the inner and outer sides of the second insert plate 3 . The positioning holes 31 are configured as rectangular holes. The positioning of the USB interface lock increases friction and reduces the production materials of the USB interface lock.

[0037] The present application also proposes a key that matches the above-mentioned USB interface lock, referring to Figure 3 The key includes a key handle 5 and an unlocking rod 6. Two unlocking rods 6 are provided and are both connected to the end of the key handle 5. The two unlocking rods 6 are arranged in parallel, and the distance between the two unlocking rods 6 is the same as the distance between the opposite sides of the two positioning rods 25, which is 1.7mm, 2.0mm or 2.6mm. The unlocking rod 6 can be inserted into the USB interface lock through the unlocking hole 11 on the outer card plate 1 to unlock.

[0038] In this embodiment, a pull-out portion 61 is provided on opposite sides of the two unlocking rods 6 . The pull-out portion 61 is configured as a hemispherical protrusion and is matched with the locking groove 27 on the locking rod 25 .

[0039] The implementation principle of the embodiment of this application is: Figure 1-4 When the USB interface lock is in use, the insertion part is inserted into the USB interface, and the insertion part will be stuck in the USB interface through the locking barb 23, so that the USB interface lock cannot be pulled out; when unlocking, use a key that matches the size of the USB interface lock to align the unlocking rod 6 with the unlocking hole 11 and insert it, the end of the unlocking rod 6 gradually abuts against the unlocking beam 24 and pushes the unlocking beam 24 toward the direction of the second insertion plate 3, and the unlocking beam 24 simultaneously pulls the locking rod 22 to bend in the direction of the second insertion plate 3, so that the locking barb 23 is no longer stuck in the USB interface, and the pulling-out part 61 on the inner side of the unlocking rod 6 is stuck in the locking groove 27 on the outer side of the locking rod 25. At this time, pulling out the key outward can pull out the USB interface lock together.

[0040] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A USB interface lock, characterized in that: The invention comprises an insertion part for inserting into a USB interface and an external card plate (1) arranged at the outer end of the insertion part, wherein the insertion part comprises a first insertion plate (2) and a second insertion plate (3) arranged opposite to each other, the first insertion plate (2) is provided with a mounting groove (21) penetrating the inner and outer sides of the first insertion plate (2), two locking rods (22) are connected to the side wall of the mounting groove (21) away from the external card plate (1), a locking barb (23) is arranged on the outer side of one end of the locking rod (22) close to the external card plate (1), an unlocking crossbeam (24) is connected between the two locking rods (22), and an unlocking hole (11) is provided on the external card plate (1) opposite to the unlocking crossbeam (24).

2. A USB interface lock according to claim 1, characterized in that: The first insertion plate (2) is configured as a rectangular plate, the mounting groove (21) is configured as a rectangular groove, and the side wall of the mounting groove (21) is parallel to the edge of the corresponding first insertion plate (2).

3. A USB interface lock according to claim 2, characterized in that: The upper and lower side surfaces of the locking rod (22) are coplanar with the upper and lower side surfaces of the first insertion plate (2), the inner side surface of the unlocking beam (24) facing the second insertion plate (3) is coplanar with the inner side surface of the first insertion plate (2), and the thickness of the unlocking beam (24) is less than the thickness of the locking rod (22).

4. A USB interface lock according to claim 3, characterized in that: The surface of the unlocking cross beam (24) facing the unlocking hole (11) is arranged as an inclined surface, and the thickness of the unlocking cross beam (24) gradually decreases in the direction approaching the unlocking hole (11).

5. A USB interface lock according to claim 3, characterized in that: Two locking rods (25) are arranged on the side wall of the installation groove (21) connected to the locking rod (22), and a key slot (26) is formed between the locking rod (25) and the locking rod (22), and the key slot (26) is located within the projection range of the unlocking hole (11).

6. A USB interface lock according to claim 5, characterized in that: The inner side surface of the locking rod (25) facing the second insertion plate (3) is coplanar with the inner side surface of the first insertion plate (2), the thickness of the locking rod (25) is greater than the thickness of the unlocking crossbeam (24), and a locking groove (27) is provided on the side surface of the locking rod (25) facing the key slot (26).

7. A USB interface lock according to claim 1, characterized in that: A connecting plate (4) is provided between the first insert plate (2) and the second insert plate (3), and a positioning hole (31) penetrating the inside and the outside is provided on the second insert plate (3).

8. A key for a USB interface lock as claimed in any one of claims 1 to 7, characterized in that: It comprises a key handle (5) and two unlocking rods (6) arranged at the ends of the key handle (5); the unlocking rods (6) can be inserted into the USB interface lock through unlocking holes (11) on the outer card plate (1) to unlock the lock.

9. A key for a USB interface lock according to claim 8, characterized in that: Pull-out portions (61) are provided on opposite sides of the two unlocking rods (6).

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