Interface protection device

Abstract

An interface protection device is installed on equipment with an interface and comprises a fixing structure which comprises a base part fixedly installed on the equipment and a sliding rod installed on the base part; the sleeve is arranged on the sliding rod in a sleeving manner and can slide in the axial direction along the sliding rod; and a protective cover having a shaft barrel portion having a cylindrical channel to receive the sleeve therein and configured to be rotatable about the sleeve. The interface protection device also includes a first resilient reset member mounted between the sleeve and the protective cover and configured to urge the protective cover to automatically reset to assist in re-covering the interface, and a self-locking assembly including a self-locking member and a mating member, the two members mounted on the fixing structure and the protective cover, respectively, and the mating member is configured to cooperate with the self-locking member. The self-locking assembly is arranged on the interface protection device and is automatically locked together when the interface protection device is in the initial structure, so that the fixing structure and the protection cover are locked together, and the self-locking assembly is manually unlocked.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment, and more particularly to an interface protection device. Background Art

[0002] With the widespread use of complex electronic equipment on aircraft, multiple cable interfaces are often installed on a single backplane. Some interfaces are reserved for ground maintenance, such as data download and database loading. To prevent electromagnetic interference, pin damage, and foreign objects, designers install protective covers on these reserved interfaces to facilitate maintenance.

[0003] Because the protective cover needs to be opened to expose the interface, it is not completely fixed to the electronic device. This results in existing protective covers being easily dropped, lost, and inconvenient to remove. In addition, there is also the risk of the protective cover becoming loose due to operator error (for example, failure to fully replace the protective cover after use) and falling off, which makes the protective cover inconvenient to use.

[0004] There are two main types of existing device connector interface protection covers: one that is connected by friction and the other that is connected by threads.

[0005] The protective cover connected by friction is suitable for frequent plugging and unplugging, not prone to vibration, and relatively stable working environment. The disadvantage is that frequent plugging and unplugging can easily cause the interface to loosen, and the equipment on the aircraft vibrates violently, which can easily cause the protective cover to fall off.

[0006] The protective cover connected by threads is suitable for scenarios where plugging and unplugging are not frequent and vibration duration is short, but its disassembly and assembly are cumbersome, which increases the maintenance time cost. The protective cover connected by threads also has the disadvantage of being easy to fall off in an environment with severe vibration.

[0007] Therefore, a protection device is currently desired, which can solve or at least partially avoid the above-mentioned disadvantages. Utility Model Content

[0008] To address the issue of device connector interface protective covers being easily dropped, lost, and inconvenient to remove, this utility model provides an interface protection device that automatically resets and has a self-locking function. Furthermore, this interface protection device can be installed using bolts or adhesives, making it easy to remove and simple to use.

[0009] Specifically, the interface protection device includes a fixed structure, the fixed structure including a base fixedly mounted on the device and a slide rod mounted on the base; a sleeve, the sleeve being mounted on the slide rod so that the sleeve can slide in an axial direction along the slide rod; and a protective cover having a shaft portion, the shaft portion having a cylindrical channel to receive the sleeve therein and configured to rotate around the sleeve, wherein the interface protection device is configured to be able to transition between an initial configuration and an open configuration, wherein the initial configuration covers the interface and the open configuration moves the protective cover away from the interface to expose the interface. In an embodiment of the present invention, the interface protection device further includes a first elastic return member, the first elastic return member being mounted between the sleeve and the protective cover and configured to cause the protective cover to automatically return to help re-cover the interface; and a self-locking assembly, the self-locking assembly including a self-locking member and a mating member, the self-locking member and the mating member being mounted on the fixed structure and the protective cover respectively, and configured to automatically lock together when the interface protection device is in the initial configuration to lock the fixed structure and the protective cover together, and the self-locking assembly being configured to be manually unlocked.

[0010] Preferably, the slide bar is provided with a slide bar limiting baffle at its top, and the sleeve has a track passing through the sleeve that matches the shape of the slide bar limiting baffle, so that when the sleeve is sleeved on the slide bar, the sleeve can only slide in the axial direction along the slide bar.

[0011] Further, the sleeve has a sleeve limit baffle at its bottom, which is configured to limit the sleeve movement beyond the slide bar limit baffle. When the sleeve slides away from the base on the slide bar, the sleeve limit baffle will contact the slide bar limit baffle to prevent the sleeve from sliding further.

[0012] In an embodiment of the present invention, the first elastic return member is a torsion spring, which is positioned around the sleeve, with one end of the torsion spring fixedly connected to the sleeve and the other end of the torsion spring fixedly connected to the protective cover.

[0013] In an embodiment of the present invention, when the interface protection device transitions between the initial configuration and the open configuration, the sleeve slides in the axial direction along the sliding rod, and the interface protection device also includes a second elastic reset member, which is installed between the sleeve and the protective cover so that the sleeve is automatically reset.

[0014] Furthermore, the second elastic return member is a tension spring positioned around the sleeve, with one end of the tension spring fixedly connected to the sleeve and the other end fixedly connected to the base. The tension spring is configured to cause the sleeve to slide toward the base. The second elastic return member applies a continuous tensile force to the protective cover, allowing the protective cover to more stably cover the interface.

[0015] Advantageously, the sleeve has a circular protrusion configured to mate with the channel of the protective cover, wherein one end of the torsion spring is fixedly connected to the upper side of the protrusion, and wherein one end of the tension spring is fixedly connected to the lower side of the protrusion. The presence of the protrusion allows space above and below the protrusion between the protective cover and the sleeve for the first elastic return member and the second elastic return member to deform.

[0016] Advantageously, the fixing structure further includes a support plate, and the protective cover further includes a support block on the outside of its shaft barrel portion, the support block being configured to be supported by the support plate when the interface protector is in the open configuration. The presence of the support plate and the support block allows the various components to follow a desired trajectory when the interface protector transitions from the open configuration to the initial configuration, enabling the interface protector to more stably cover the interface.

[0017] In an embodiment of the present invention, the protective cover is formed with a lock shaft, wherein the self-locking component is a lock mounted on the lock shaft of the protective cover, and the mating component is a fixed buckle fixed on the base, the lock is configured to be able to rotate around the lock shaft to lock or unlock with the fixed buckle, and wherein the self-locking component also includes a lock torsion spring, which is installed at the lock shaft to cause the self-locking component to lock with the mating component when the interface protection device is in the initial structure.

[0018] In another embodiment of the present invention, the protective cover has a fixed part and a movable part, the fixed part is mounted on a fixed structure, and the movable part includes a shaft sleeve part, wherein, in the initial structure, the movable part cooperates with the fixed part to cover the interface, and in the open structure, the movable part rotates around the sleeve away from the fixed part to expose the interface.

[0019] Additional features and advantages of the described interface protection device will be set forth in the detailed description that follows, and will be apparent to those skilled in the art from the following description or will be recognized by those skilled in the art from practicing the embodiments described herein, including the following detailed description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] With reference to the above objects, the technical features of the present invention are clearly described in the following claims, and its advantages are apparent from the following detailed description with reference to the accompanying drawings, which show preferred embodiments of the present invention by way of example without limiting the scope of the concept of the present invention.

[0021] Figure 1 A schematic diagram of an interface protection device according to an embodiment of the present utility model is shown;

[0022] Figure 2 A schematic diagram showing a fixing structure of an interface protection device according to an embodiment of the present utility model is shown;

[0023] Figure 3 A schematic diagram of a sleeve of an interface protection device according to an embodiment of the present utility model is shown;

[0024] Figure 4 A schematic diagram of a protective cover of an interface protection device according to an embodiment of the present utility model is shown;

[0025] Figure 5 A schematic diagram of the assembly of the fixing structure and the sleeve of the interface protection device according to an embodiment of the present utility model in the initial configuration is shown;

[0026] Figure 6 A schematic diagram of the assembly of the fixing structure and the sleeve of the interface protection device according to an embodiment of the present utility model when the interface protection device is in an open configuration is shown;

[0027] Figure 7 A schematic diagram showing a lock buckle and a lock buckle torsion spring of an interface protection device according to an embodiment of the present utility model is shown;

[0028] Figure 8 A schematic diagram of an interface protection device in an initial configuration according to an embodiment of the present invention is shown;

[0029] Figure 9 A schematic diagram showing an interface protection device according to an embodiment of the present invention being transformed toward an open configuration;

[0030] Figure 10 A schematic diagram of an interface protection device in an open configuration according to an embodiment of the present invention is shown;

[0031] Figure 11 A schematic diagram of an interface protection device according to an embodiment of the present utility model is shown;

[0032] Figure 12 A schematic diagram showing an interface protection device in an initial configuration according to another embodiment of the present invention; and

[0033] Figure 13 A schematic diagram of an interface protection device in an open configuration according to another embodiment of the present invention is shown.

[0034] Reference numerals

[0035] 1 Interface protection device

[0036] 2 Equipment

[0037] 3 Interfaces

[0038] 10 Fixed structure

[0039] 11 base

[0040] 12 Sliders

[0041] 121 Slider limit baffle

[0042] 13 Support plate

[0043] 14. Mating components

[0044] 20 sleeve

[0045] 21 tracks

[0046] 22 convex part

[0047] 30 protective cover

[0048] 31 shaft barrel part

[0049] 311 support block

[0050] 32 Locking shaft

[0051] 33 fixed part

[0052] 34 movable parts

[0053] 40 first elastic reset member

[0054] 50 second elastic reset member

[0055] 60 Self-locking components

[0056] 70 Lock torsion spring DETAILED DESCRIPTION

[0057] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention in any way.

[0058] The term "bottom" as used herein refers to the portion of a component that is closest to a device having an interface when actually in use, and "top" refers to the portion of a component that is farthest from the device when actually in use. Figure 1 Taking the sleeve in FIG as an example, the lower part of the sleeve can be called the bottom, and the upper part can be called the top.

[0059] As used herein, the term "axial direction" refers to a direction along the central axis of the sleeve, and "radial plane" refers to a plane perpendicular to the central axis of the sleeve.

[0060] As used herein, the term "reset" refers to the return of a component to the position or state it was in when the interface protection device was in its initial configuration.

[0061] In the following, for the convenience of description, the same or similar parts or elements are denoted by the same reference numerals.

[0062] This utility model provides an automatically resetting and self-locking device connector interface protection device to address the issue of electronic equipment connector interface protection covers being easily dropped, lost, or inconveniently removed. It should be understood that while the protection device of this utility model is targeted at complex electronic equipment on aircraft and used to protect electrical interfaces, those skilled in the art will appreciate that the interface protection device according to this utility model can be similarly used for complex electronic equipment in other scenarios and can be used to protect other suitable interfaces besides electrical interfaces.

[0063] Figure 1-10 An interface protection device according to an embodiment of the present utility model is shown.

[0064] Reference Figure 1 The interface protection device 1 includes a fixing structure 10, a sleeve 20 (see also Figure 3 ) and protective cover 30 (see also Figure 4 ). Reference Figure 2 The fixing structure 10 includes a base 11 and a slide bar 12 mounted on the base 11. Figure 6 The sleeve 20 is mounted on the slide bar 12 so that the sleeve 20 can slide in the axial direction along the slide bar 12. Figure 1 and 4 The protective cover 30 has a shaft cylinder portion 31, which has a cylindrical channel to receive the sleeve 20 therein and is configured to allow the protective cover 30 to rotate around the sleeve 20. By using the above-mentioned fixing structure 10, sleeve 20 and protective cover 30, the interface protection device 1 can be in the initial configuration ( Figure 8 ) and open construct ( Figure 10 ) between the initial configuration, in which the protective cover 30 covers the interface 3 to be protected, and in the open configuration, the protective cover 30 moves away from the interface to expose the interface 3 for the user to use the interface 3.

[0065] Reference Figure 5-6 The slide bar 12 is mounted with a slide bar stop plate 121 at its top, and the sleeve 20 has a track 21 that passes through the sleeve 20 and matches the shape of the slide bar stop plate 121. The slide bar stop plate 121 is, for example, bolted to the slide bar 12 to facilitate installation of the sleeve 20. The slide bar stop plate 121 and the track 21 have the same non-circular cross-section (e.g., convex, rectangular, etc.) in a radial plane, so that when the sleeve 20 is mounted on the slide bar 12, the sleeve 20 is restricted by the slide bar stop plate 121 and can only slide in the axial direction along the sleeve 20.

[0066] More advantageously, the sleeve 20 has a sleeve stopper (not shown) at its bottom, which is configured to limit the movement of the sleeve 20 beyond the slide bar stopper 121. Specifically, the sleeve stopper can "block" a portion of the track 21 at the bottom of the sleeve 20, so that when the sleeve 20 slides away from the base 11 on the slide bar 12, the sleeve stopper will contact the slide bar stopper 121 to prevent the sleeve 20 from sliding further.

[0067] In the absence of the slide bar stop plate 121, the size of the sleeve stop plate is designed so as not to hinder the sliding of the sleeve 20 on the slide bar 12, and the cross-sectional dimension of the slide bar 12 in the radial plane is smaller than the slide bar stop plate 121. Therefore, the sleeve 20 can be first sleeved onto the outside of the slide bar 12, and then the slide bar stop plate 121 can be installed at the top of the slide bar 12 to complete the assembly of the slide bar 12 and the sleeve 20.

[0068] Reference Figure 8-10 , it can be seen that when the interface protection device 1 is transformed from the initial configuration to the open configuration, because the interface 3 blocks the rotational movement, the sleeve 20 first slides axially along the slide rod 12, and then the protective cover 30 rotates around the sleeve 20 (for example, rotates 90° counterclockwise) to expose the interface 3. Conversely, the protective cover 30 first rotates around the sleeve 20, and then the sleeve 20 slides along the slide rod 12 to cover the interface 3.

[0069] Advantageously, the fixed structure 10 further includes a support plate 13, and the protective cover 30 further includes a support block 311 on the outside of its shaft barrel portion 31. The support block 311 is configured to be supported by the support plate 13 when the interface protection device is in the open configuration. In this embodiment, the support plate 13 is a thin plate in the shape of a quarter-circle arc, which is fixed to the base 11 of the fixed structure 10 at a slight interval around the shaft barrel portion 31 (optionally formed integrally with the base 11), and the support block 311 is a raised quarter-circle arc structure at the bottom edge of the shaft barrel portion 31. This shape does not affect the sliding movement of the sleeve 20. The advantage of designing the support plate 13 and the support block 311 is that when the interface protection device 1 is transformed from the open configuration to the initial configuration, the various components can be made to move along the desired trajectory, so that the interface protection device can cover the interface more stably.

[0070] The following describes how the interface protection device 1 realizes the automatic reset function.

[0071] Back to Figure 5-6 , shows a first elastic reset member 40, which is installed between the sleeve 20 and the protective cover 30 (refer to Figure 1 ) to cause the protective cover 30 to automatically reset (i.e., return to the position in the initial configuration) to help re-cover the interface.

[0072] In a preferred embodiment, the first elastic return member 40 is a torsion spring, which is positioned around the sleeve 20. In the case where the first elastic return member 40 is a torsion spring, one end of the first elastic return member 40 is fixedly connected to the sleeve 20, and the other end is fixedly connected to the protective cover 30 ( Figure 1 ), thereby causing the protective cover 30 to move (eg, rotate clockwise) to cover the interface.

[0073] Further, Figure 5-6 A second elastic return member 50 is also shown, which is installed between the sleeve 20 and the protective cover 30 to automatically return the sleeve 20. In addition, the second elastic return member 50 continues to exert an elastic force on the protective cover 30, thereby helping the protective cover 30 to always cover the interface in the absence of external force.

[0074] In a preferred embodiment, the second elastic return member 50 is a tension spring, which is positioned around the sleeve 20. In the case where the second elastic return member 50 is a tension spring, one end of the second elastic return member 50 is fixedly connected to the sleeve 20, and the other end is fixedly connected to the base 11, and the tension spring is configured to force the sleeve 20 to slide toward the base.

[0075] In an embodiment of the present invention, the sleeve 20 has a circular protrusion 22 configured to mate with the channel of the protective cover 30. If the first elastic return member 40 is a torsion spring, one end of the torsion spring is fixedly connected to the upper side of the protrusion 22, and if the second elastic return member 50 is a tension spring, one end of the tension spring is fixedly connected to the lower side of the protrusion 22. This design leaves space between the protective cover 30 and the sleeve 20, both above and below the protrusion 22, for the first elastic return member 40 and the second elastic return member 50 to deform.

[0076] It should be understood that, although in the embodiment described herein, the sleeve 20 and its protrusion 22 are cylindrical structures, in other embodiments, the sleeve 20 may have other shapes, as long as the axial movement of the sleeve 20 and the rotation of the protective cover 30 about the central axis of the sleeve 20 are achieved. For example, in one embodiment, the sleeve 20 may have a triangular prism shape.

[0077] The following describes how the interface protection device 1 implements the self-locking function.

[0078] Reference Figure 1 、 47, the interface protection device 1 includes a self-locking assembly, which includes a self-locking member 60 and a mating member 14. The self-locking member 60 and the mating member 14 are respectively mounted on the fixed structure 10 and the protective cover 30, and are configured to automatically lock together when the interface protection device 1 is in an initial configuration to lock the fixed structure and the protective cover 30 together. The self-locking assembly is configured to be manually unlocked.

[0079] In an embodiment of the present invention, the protective cover 30 is formed with a latch shaft 32, and the self-locking member 60 is a latch mounted on the latch shaft 32 of the protective cover 30, while the mating member 14 is a fixed buckle fixed to the base 11. The latch is configured to rotate about the latch shaft 32 to lock or unlock with the fixed buckle. Furthermore, the self-locking assembly also includes a latch torsion spring 70, which is mounted on the latch shaft 32 to force the self-locking member 60 (i.e., latch) to lock with the mating member 14 (i.e., fixed buckle) when the interface protector is in the initial configuration. In this case, when the interface protector transitions to the initial configuration, the protective cover 30 will move in the axial direction, and the elastic force of the second elastic return member 50 will overcome the resistance of the latch torsion spring 70, pulling the latch through the hook portion of the fixed buckle. The elastic force of the latch torsion spring 70 then acts on the latch to automatically lock the latch with the fixed buckle.

[0080] Preferably, the locking shaft 32 is formed on the outside of the shaft cylinder portion 31 of the protective cover 30, which allows the self-locking component 60 and the mating component 14 to be locked on the outside of the shaft cylinder portion 31, which further limits the protective cover 30, so that even in a harsh environment with severe vibration, the protective cover can still stably cover the interface and play a protective role.

[0081] It should be understood that the design of the self-locking component described in the embodiment of the present invention is merely an example and not a limitation, and in other embodiments, the self-locking component may be of other types besides the shaft lock, such as a plug buckle.

[0082] like Figure 8 As shown, in the initial configuration, the interface protection device 1 is installed on the device 2 having the interface 3, and the fixing structure 10 ( Figure 2 ) is fixedly mounted on the device 2 (eg by screw connection or gluing). The sleeve 20 is sleeved on the slide bar (not shown in the figure, see Figure 6 The protective cover 30 covers the interface 3 under the action of the second elastic reset member, and the shaft cylinder portion 31 of the protective cover 30 is sleeved on the sleeve 20.

[0083] like Figure 9As shown, during the period when the user manually transforms the interface protection device 1 from the initial configuration to the open configuration, the user first operates the self-locking assembly to unlock the relative movement of the protective cover 30 and the sleeve 20, and then lifts the protective cover 30 in the axial direction. At this time, the protective cover 30 and the sleeve 20 overcome the elastic force of the second elastic return member 50 and move in the axial direction, and the sleeve 20 moves on the slide rod until the slide rod limit baffle contacts the sleeve limit baffle.

[0084] like Figure 10 As shown, after lifting the protective cover 30, the user overcomes the elastic force of the first elastic return member 40 to rotate the protective cover 30, causing the protective cover 30 to rotate around the sleeve 20 (for example, 90 degrees counterclockwise), thereby placing the interface protection device 1 into the open configuration. The protective cover 30 is supported by the support plate 13 and is prevented from moving back toward the interface 3.

[0085] During use of the interface, the interface protector 1 does not automatically return to the initial configuration due to obstruction by the connector connected to the interface.

[0086] When the interface is used and the connector is removed, the protective cover 30 does not move in the axial direction under the support of the support plate 13, but first rotates (for example, clockwise) under the elastic force of the first elastic return member 40 until the support block of the protective cover 30 (see FIG. Figure 1 ) is no longer supported by the support plate 13. After there is no axial obstruction, the protective cover 30 is pulled toward the interface 3 under the elastic force of the first elastic return member 40, and eventually returns to the position covering the interface 3. At this time, the interface protection device 1 returns to the initial configuration.

[0087] Figure 11-13 Another embodiment of the present invention is shown in FIG. This interface protection device 1 includes the same components as the interface protection device of the previous embodiment, except for the protective cover 30. Furthermore, the second elastic return member of the previous embodiment can be omitted in this embodiment. Therefore, only the protective cover 30 will be described in detail below.

[0088] Reference Figure 11-13 The protective cover 30 has a fixed part 33 and a movable part 34, the fixed part 33 is installed on the fixed structure 10, and the movable part 34 includes the shaft sleeve part 31, wherein, in the initial structure, the movable part 34 cooperates with the fixed part 33 to cover the interface 3, and in the open structure, the movable part 34 rotates around the sleeve away from the fixed part 33 to expose the interface.

[0089] like Figure 12 As shown, in the initial configuration, the interface protection device 1 is installed on the device 2 having the interface 3, and the base of the fixed structure (not shown, see Figure 8-10) is fixedly mounted on the device 2 (e.g. by screw connection or gluing). The sleeve is mounted on the slide rod (not shown in the figure, see Figure 6 The protective cover 30 covers the interface 3 under the action of the second elastic reset member, and the shaft cylinder portion 31 of the protective cover 30 is sleeved on the sleeve.

[0090] like Figure 13 As shown, during the period when the user manually transforms the interface protection device from the initial configuration to the open configuration, the user first operates the self-locking assembly to unlock the relative movement of the protective cover 30 and the sleeve 20, and then overcomes the elastic force of the first elastic return member (torsion spring) to rotate the movable part 34 of the protective cover 30, so that the movable part 34 rotates around the sleeve 20 (for example, rotates 90 degrees counterclockwise), thereby causing the interface protection device to enter the open configuration.

[0091] When the interface is used, the connector is removed and the movable portion 34 of the protective cover 30 rotates back under the elastic force of the first elastic return member 40 to engage with the fixed portion 33 , thereby covering the interface 3 again.

[0092] The interface protection device of the utility model has the following technical benefits:

[0093] 1) Compared with protective covers connected by friction, the interface protection device of the present invention can avoid or reduce the problem of falling or losing;

[0094] 2) Compared with protective covers connected by threads, the interface protection device of the present invention can avoid or reduce the problem of cumbersome disassembly and assembly;

[0095] 3) The interface protection device of the present invention has an automatic reset function, which can prevent maintenance personnel from forgetting to reset the protection cover as much as possible;

[0096] 4) The interface protection device of the present invention has a self-locking function, which can prevent the protective cover from falling off due to severe vibration as much as possible;

[0097] 5) The interface protection device of the present invention can be installed by bolts or adhesives, and is easy to disassemble and use.

[0098] Although the structure of the present invention has been described above in conjunction with preferred embodiments, those skilled in the art will recognize that the above examples are for illustration only and are not intended to limit the present invention. Therefore, modifications and variations may be made to the present invention, and such modifications and variations will fall within the scope of the claims appended hereto.

Claims

1. An interface protection device (1), the interface protection device (1) being installed on a device (2) having an interface (3), and comprising: A fixed structure (10), comprising a base (11) fixedly mounted on the device (2) and a slide bar (12) mounted on the base (11); a sleeve (20), wherein the sleeve (20) is sleeved on the slide rod (12), so that the sleeve (20) can slide in an axial direction along the slide rod (12); as well as A protective cover (30) having a shaft cylinder portion (31) having a cylindrical passage for receiving the sleeve (20) therein and configured to be rotatable around the sleeve (20), The interface protection device (1) is configured to be capable of transitioning between an initial configuration and an open configuration, wherein in the initial configuration, the protective cover (30) covers the interface (3), and in the open configuration, the protective cover (30) moves away from the interface to expose the interface (3). Characterized in that the interface protection device (1) further comprises: a first elastic reset member (40), which is installed between the sleeve (20) and the protective cover (30) and is configured to cause the protective cover (30) to automatically reset to help re-cover the interface (3); and A self-locking assembly comprises a self-locking component (60) and a matching component (14), wherein the self-locking component (60) and the matching component (14) are respectively mounted on the fixed structure (10) and the protective cover (30), and are configured to automatically lock together when the interface protection device (1) is in the initial configuration, so as to lock the fixed structure (10) and the protective cover (30) together, and the self-locking assembly is configured to be manually unlocked.

2. The interface protection device (1) according to claim 1, characterized in that: The first elastic return member (40) is a torsion spring, which is positioned around the sleeve (20), one end of which is fixedly connected to the sleeve (20) and the other end of which is fixedly connected to the protective cover (30).

3. The interface protection device (1) according to claim 2, characterized in that: The slide bar (12) is provided with a slide bar limiting baffle (121) at its top, and the sleeve (20) has a track (21) passing through the sleeve (20) that matches the shape of the slide bar limiting baffle (121), so that when the sleeve (20) is sleeved on the slide bar (12), the sleeve (20) can only slide in the axial direction along the slide bar (12).

4. The interface protection device (1) according to claim 3, characterized in that: The sleeve (20) has a sleeve limiting baffle at its bottom, and the sleeve limiting baffle is configured to limit the sleeve (20) from moving beyond the slide rod limiting baffle (121).

5. The interface protection device (1) according to claim 4, characterized in that: When the interface protection device (1) is transformed between the initial configuration and the open configuration, the sleeve (20) slides in the axial direction along the slide rod (12), and The invention also comprises a second elastic reset member (50), which is installed between the sleeve (20) and the protective cover (30) so that the sleeve (20) is automatically reset.

6. The interface protection device (1) according to claim 5, characterized in that: The second elastic return member (50) is a tension spring, which is positioned around the sleeve (20), one end of which is fixedly connected to the sleeve (20) and the other end of which is fixedly connected to the base (11), and the tension spring is configured to urge the sleeve (20) to slide toward the base (11).

7. The interface protection device (1) according to claim 6, characterized in that: The sleeve (20) has a circular protrusion (22), which is configured to cooperate with the channel of the protective cover (30), wherein one end of the torsion spring is fixedly connected to the upper side of the protrusion (22), and wherein one end of the tension spring is fixedly connected to the lower side of the protrusion (22).

8. The interface protection device (1) according to claim 1, characterized in that: The fixing structure (10) further comprises a support plate (13), and the protective cover (30) further comprises a support block (311) outside the shaft cylinder portion (31) thereof, wherein the support block (311) is configured to be supported by the support plate (13) when the interface protection device (1) is in the open configuration.

9. The interface protection device (1) according to claim 1, characterized in that: The protective cover (30) is formed with a locking shaft (32). wherein the self-locking member (60) is a lock mounted on the lock shaft (32) of the protective cover (30), and the matching member (14) is a fixed buckle fixed to the base (11), and the lock is configured to be rotatable around the lock shaft to lock or unlock with the fixed buckle, and The self-locking assembly further comprises a locking torsion spring (70), which is installed at the locking shaft (32) to cause the self-locking component (60) to lock with the mating component (14) when the interface protection device (1) is in the initial configuration.

10. The interface protection device (1) according to claim 1, characterized in that: The protective cover (30) has a fixed part (33) and a movable part (34), wherein the fixed part (33) is mounted on the fixed structure (10), and the movable part (34) includes the shaft cylinder part (31), wherein, in the initial configuration, the movable part (34) cooperates with the fixed part (33) to cover the interface (3), and in the open configuration, the movable part (34) rotates around the sleeve (20) away from the fixed part (33) to expose the interface.

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