A dustproof structure for an LC adapter

Abstract

This application relates to the field of adapter technology, and particularly to a dustproof structure for an LC adapter. The structure comprises two cavities within the adapter body for inserting an LC connector, separated by a partition plate. An mounting block is positioned on top of the partition plate within the adapter body, and a dustproof spring is embedded within the mounting block. The two ends of the dustproof spring extend into the two cavities and abut against the inner walls of the partition plate. This dustproof spring within the cavities achieves a dustproof effect, preventing dust from entering while avoiding the increased size caused by a flip-top design, effectively reducing the overall volume. The mounting block limits the movement of the dustproof spring, enabling rapid installation with fewer parts and high assembly efficiency. After the LC connector is removed, the dustproof spring elastically returns to its original position, with its end abutting against the inner wall of the cavity again, achieving a sealed dustproof effect. No manual operation of the dustproof spring is required, making operation extremely simple.

Description

Technical Field

[0001] This application relates to the field of adapter technology, and in particular to a dustproof structure for an LC adapter. Background Technology

[0002] In optical fiber communication connections, adapters are required to connect two optical fibers. Commonly used adapters include SC, FC, and LC, which are single-core, duplex, or even multi-core connectors. LC connectors, due to their small size and minimal panel footprint, offer better cost-effectiveness in high-density connections within the same panel area, thus gaining widespread use. Fiber optic adapters are a crucial component of optical fiber transmission links, and their losses significantly impact the overall transmission efficiency. Therefore, while achieving high-efficiency, ultra-high-density cabling, it is essential to provide appropriate dust protection for fiber optic adapters.

[0003] Some existing fiber optic adapters come with a separate dust plug. When using them, the dust plug needs to be removed separately, and then the plug needs to be inserted into the adapter for fiber optic connection. At the same time, the dust plug also needs to be stored properly so that it can be put back in after the cable is disconnected. This makes the installation operation cumbersome and inefficient.

[0004] Some adapters have a flip cover on the outside or inside of the fiber optic adapter. The flip cover is pivotally connected to the adapter via a hinge spring. This design involves many parts, making assembly difficult and inefficient. During use, the flip cover needs to be pried open manually to connect the wires, requiring one hand to open the flip cover and the other to connect the wires, which is also inconvenient. Furthermore, regardless of whether the flip cover is located on the outside or inside of the fiber optic adapter, additional space is needed to house it, preventing the adapter from achieving a minimized size. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a dustproof structure for an LC adapter, comprising an adapter body into which an LC connector can be inserted. The adapter body is divided by a partition plate to form two cavities for the LC connector to be inserted. An mounting block is provided at the top of the partition plate within the adapter body. A dustproof spring is embedded within the mounting block, with both ends of the dustproof spring extending into the two cavities and abutting against the inner sidewalls of the partition plate. The LC connector can be inserted into the cavity, allowing the dustproof spring to elastically deform and its two sides to abut against the sidewalls of the partition plate and the LC connector, respectively.

[0006] Preferably, the dustproof spring includes a semi-circular head embedded in the mounting block, and a first straight segment, a second straight segment, a first arc segment, a third straight segment, a second arc segment, a fourth straight segment connected symmetrically to the semi-circular head, and a closed segment abutting against the inner wall of the cavity.

[0007] Preferably, the mounting block is formed with a groove for embedding the semi-circular head and the first straight segment. The top of the partition board is fitted with an insertion piece extending into the groove, and the semi-circular head and the first straight segment of the dust-proof elastic piece are placed in the gap between the insertion piece and the side wall of the groove.

[0008] Preferably, convex platforms matching the shape of the first arc segment are formed on both sides of the top of the partition board, and clearance grooves for the second arc segment to abut against are formed on both sides of the middle of the partition board.

[0009] Preferably, the thickness of the dust-proof elastic piece is 0.05 - 0.1 mm; the outer diameter of the semi-circular head is 0.7 - 0.8 mm; the length of the first straight segment is 1.2 - 1.3 mm; the length of the second straight segment is 1.6 - 1.7 mm, the length of the third straight segment is 1.2 - 1.3 mm, the length of the fourth straight segment is 3.7 - 3.8 mm; the distance between the closed segment and the center of the semi-circular head is 5.85 - 5.95 mm; the included angle between the first straight segment and the second straight segment is 120° - 130°; the included angle between the second straight segment and the third straight segment is 132° - 135°, and the included angle between the third straight segment and the fourth straight segment is 115° - 120°. [[ID=?]]

[0010] Preferably, a plug is formed at the bottom of the LC connector; a connection sleeve for docking with the plug is provided in the cavity of the adapter body; the LC connector is inserted into the cavity, and the plug abuts against the fourth straight segment, the first arc segment abuts against the side wall of the LC connector, and the second arc segment is located in the clearance groove and abuts against the partition board.

[0011] Preferably, the production material of the dust-proof elastic piece is one of copper, copper alloy, stainless steel and plastic.

[0012] As can be seen from the above, applying the present application can achieve the following beneficial effects: By forming two cavities in the adapter body for inserting LC connectors, a connection sleeve for docking with the LC connectors is provided in the cavity of the adapter body. Then, fiber optic connection is achieved through the docking of the LC connectors with the connection sleeve. The two cavities are separated by a partition plate. An installation block is provided at the top of the partition plate within the adapter body. A dust-proof elastic sheet is embedded in the installation block. Both ends of the dust-proof elastic sheet extend into the two cavities respectively and abut against the inner sidewalls opposite to the partition plate. Thus, the dust-proof effect of the adapter is achieved through the dust-proof elastic sheet arranged in the cavity, preventing dust from entering and avoiding the problem of increased volume caused by the flip structure, effectively reducing the overall volume. At the same time, the dust-proof elastic sheet is embedded in the installation block. Through the limiting movement of the dust-proof elastic sheet by the installation block, the purpose of quick installation is achieved, with fewer parts and high assembly efficiency. After the LC connector is inserted into the cavity, by making the dust-proof elastic sheet elastically deformed and both side surfaces abut against the partition plate and the sidewall of the LC connector respectively, the docking of the LC connector with the connection sleeve is achieved. After the LC connector is pulled out, the dust-proof elastic sheet elastically resumes, and the end of the dust-proof elastic sheet abuts against the inner sidewall of the cavity again, achieving the dust-proof and sealing effect without manual operation on the dust-proof elastic sheet, and the use operation is extremely simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments of the present application or the prior art. Obviously, the drawings in the following description are only a part of the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 Schematic diagram of the dust-proof structure of the LC adapter according to Embodiment 1 of the present application;

[0015] Figure 2 Schematic diagram of the LC connector according to Embodiment 1 of the present application;

[0016] Figure 3 Stereogram of the dust-proof structure of the LC adapter according to Embodiment 1 of the present application;

[0017] Figure 4 Schematic diagram of the structure of the dust-proof elastic sheet 20 according to Embodiment 1 of the present application.

[0018] Figure 5 First assembly state of the dust-proof structure of the LC adapter according to the embodiment of the present application;

[0019] Figure 6 Second assembly state of the dust-proof structure of the LC adapter according to Embodiment 1 of the present application;

[0020] Figure 7This is the third assembly state of the dustproof structure of the LC adapter in Embodiment 1 of this application;

[0021] Figure 8 This is the fourth assembly state of the dustproof structure of the LC adapter in Embodiment 1 of this application;

[0022] Figure 9 This is a schematic diagram of the dustproof spring clip 20 structure of Embodiment 2 of this application;

[0023] Figure 10 This is a schematic diagram of the dustproof structure assembly of the LC adapter in Embodiment 2 of this application. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] Example 1

[0026] To address the aforementioned technical problems, this embodiment provides a dustproof structure for an LC adapter, such as... Figure 1-2 As shown, the adapter includes an adapter body 10 and an LC connector 50 that can be inserted into the adapter body 10. To achieve dual-station connection, two cavities 11 are formed within the adapter body 10 for inserting the LC connector 50. Each cavity 11 of the adapter body is provided with a connecting sleeve 60 for mating with the LC connector 50. Optical fiber connection is achieved by mating the LC connector 50 with the connecting sleeve 60. The two cavities 11 are separated by a partition plate 40. A mounting block 30 is provided above the partition plate 40 within the adapter body 10 for mounting... The block 30 is fitted with a dustproof spring clip 20. The two ends of the dustproof spring clip 20 extend into the two cavities 11 respectively and abut against the inner sidewall of the partition plate 40. Thus, the dustproof spring clip 20 set in the cavity 11 achieves the dustproof effect of the adapter, preventing dust from entering and avoiding the problem of increased volume caused by the flip cover structure, effectively reducing the overall volume. At the same time, the dustproof spring clip 20 is embedded in the mounting block 30. The mounting block 30 limits the movement of the dustproof spring clip 20, achieving the purpose of quick installation. There are fewer parts and the assembly efficiency is high. After the LC connector 50 is inserted into the cavity 11, the dustproof spring 20 is elastically deformed and its two sides abut against the partition plate 40 and the side wall of the LC connector 50 respectively, thereby achieving the docking of the LC connector 50 with the connecting sleeve 60. After the LC connector 50 is pulled out, the dustproof spring 20 elastically returns to its original position, and the end of the dustproof spring 20 abuts against the inner side wall of the cavity 11 again, achieving a sealing and dustproof effect. No manual operation of the dustproof spring 20 is required, making the operation extremely simple.

[0027] Specifically, such as Figure 4 As shown, the dustproof spring 20 includes a semi-circular head 21 embedded in the mounting block 30, and a first straight segment 22, a second straight segment 23, a first arc-shaped segment 231, a third straight segment 24, a second arc-shaped segment 25, a fourth straight segment 26 symmetrically connected to the semi-circular head 21, and a closed segment 27 abutting against the inner wall of the cavity 11. The dustproof spring 20 is made of beryllium copper, which has good elasticity. The closed segment 27 abuts against the inner wall of the cavity 11 to achieve the purpose of sealing and dust prevention, effectively preventing dust from entering the cavity 11. Since two cavities 11 are provided, the first straight segment 22, the second straight segment 23, the first arc segment 231, the third straight segment 24, the second arc segment 25, the fourth straight segment 26, and the closed segment 27 are symmetrically connected to both sides of the semi-circular head 21. The semi-circular head 21 is limited and fixed by the mounting block 30, which plays a stabilizing role. When the LC connector 50 is inserted into the cavity 11, it prevents the dustproof spring 20 from shifting position. At the same time, when the LC connector 50 is inserted into the cavity 11 on one side, the dustproof spring 20 on one side is deformed, but the dustproof spring in the cavity 11 on the other side is not affected. The two sides of the dustproof spring 20 are independent of each other to ensure the dustproof effect.

[0028] Furthermore, such as Figure 3 As shown, in order to facilitate the assembly of the dustproof spring clip 20, the mounting block 30 is formed with a groove 32 for the semi-circular head 21 and the first straight segment 22 to be inserted. The groove 32 extends to the bottom of the mounting block 30. The top of the partition plate 40 is fitted with an insert 31 that extends into the groove 32. The top of the partition plate 40 is formed with a groove. One end of the insert 31 is inserted into the groove, and the other end extends into the groove 32. The semi-circular head 21 and the first straight segment 22 of the dustproof spring clip 20 are placed in the gap between the insert 31 and the side wall of the groove 32. By setting the insert 31 on the top of the partition plate 40, the dustproof spring clip 20 is fixed in the groove 32. At the same time, when the LC connector 50 is inserted into the two cavities 11, the second straight segment 23, the first arc segment 231, the third straight segment 24, the second arc segment 25, the fourth straight segment 26 and the closed segment 27 in the two cavities 11 are symmetrical and will not interfere with each other, so that the dustproof spring clip 20 can work independently in the two cavities 11. Meanwhile, the dustproof spring 20 is fixed in the groove 32 by the insert 31, ensuring that the dustproof spring 20 will not shift in its natural state and during operation, thus ensuring stable dustproof effect and high structural stability.

[0029] On both sides of the top of the partition plate 40, there are bosses 41 whose shapes match the shape of the first arc segment 231. When needed, the bosses 41 can provide necessary support for the first arc segment 231. On both sides of the middle of the partition plate 40, there are clearance grooves 42 for the second arc segment 25 to abut against. Then, the second arc segment 25 abuts against the inner side wall of the clearance groove 42 to form a clearance space, so as to ensure the subsequent smooth insertion and docking of the LC connector 50.

[0030] Furthermore, as Figure 5 shown, when the LC connector 50 starts to be inserted into the cavity 11, the plug 51 of the LC connector 50 abuts against the fourth straight segment 26, and the side wall of the LC connector 50 abuts against the second straight segment 23, causing elastic deformation. Furthermore, when the LC connector 50 continues to be inserted, as Figure 6 shown, the plug 51 continues to abut against the fourth straight segment 26, and the bottom edge of the side wall of the LC connector 50 acts on the fourth straight segment 26. At this time, the first arc segment 231 abuts against the side wall of the LC connector 50, and the dust-proof elastic piece 20 continues to deform due to the plug 51 and the bottom edge of the side wall of the LC connector 50 abutting against the fourth straight segment 26.

[0031] When the LC connector 50 is further inserted, as Figure 7 shown, the fourth straight segment 26 disengages from the plug 51, and only the bottom edge of the side wall of the LC connector 50 acts on the fourth straight segment 26. At this time, the second arc segment 25 is in the clearance groove 42 and close to the side wall of the partition plate 40. By accommodating the second arc segment 25 in the clearance groove 42, enough space is formed for the LC connector 50 to be inserted. The first arc segment 231 abuts against the side wall of the LC connector 50, and the bottom edge of the side wall of the LC connector 50 acts on the fourth straight segment 26, causing the whole to continue to deform. As Figure 8 shown, when the plug 51 of the LC connector 50 is completely inserted into the connection sleeve 60 for docking, the closed segment 27 at the end of the fourth straight segment 26 abuts against the side wall of the LC connector 50. The second arc segment 25, the fourth straight segment 26 and the closed segment 27 are placed in the clearance groove 42, and the first arc segment 231 abuts against the side wall of the LC connector 50. When the LC connector 50 is pulled out, the dust-proof elastic piece 20 is elastically restored, and the closed segment 27 at the end of the dust-proof elastic piece 20 abuts against the inner side wall of the cavity 11 again to achieve the dust-proof and sealing effect, without the need for manual operation on the dust-proof elastic piece 20, and the use operation is extremely simple. Among them, when the elasticity of the dust-proof elastic piece 20 fails due to long-term use, the quick assembly of the dust-proof elastic piece 20 can be realized through the structure of the mounting block 30, which is convenient for replacing the dust-proof elastic piece 20 and has high practicality.

[0032] Furthermore, this embodiment also provides the dimensions of the dustproof spring 20 so that when the LC connector 50 is inserted into the cavity 11, the LC connector 50 is inserted into the connecting sleeve 60 in the aforementioned abutting contact relationship. The thickness of the dustproof spring 20 is 0.05mm, the outer diameter of the semi-circular head 21 is 0.7mm, the length of the second straight segment 23 is 1.6mm, the length of the third straight segment 24 is 1mm, the length of the fourth straight segment 26 is 3.7mm, the distance between the end of the closed segment 27 and the center of the semi-circular head 21 is 5.85mm, the total length of the two cavities 11 is 10.9mm, the width of the LC connector 50 is 4.42mm, and the outer diameter of the plug 51 of the LC connector 50 is 1.26mm. The angle between the first straight segment 22 and the second straight segment 23 is 120°, the angle between the second straight segment 23 and the third straight segment 24 is 132°, the angle between the third straight segment 24 and the fourth straight segment 26 is 115°, the vertical distance between the top of the semicircular head 21 and the bottom of the second straight segment 23 is 1.9mm, the vertical distance between the top of the semicircular head 21 and the bottom of the third straight segment 24 is 3.05mm, and the vertical distance between the top of the semicircular head 21 and the bottom of the fourth straight segment 26 is 3.75mm.

[0033] By setting the above parameters, during the insertion of the LC connector 50 into the cavity 11, the interaction between the plug 51 of the LC connector 50 and the bottom edge of the side wall of the LC connector 50 and the first arc-shaped segment 231, the third straight segment 24, the second arc-shaped segment 25, the fourth straight segment 26, and the closed segment 27 of the dustproof spring 20 is ensured. This ensures that the dustproof spring 20 gradually undergoes elastic deformation, enabling the LC connector 50 to be stably inserted into the cavity 11. The entire dustproof spring 20 deforms simultaneously without compromising its elasticity, avoiding excessive deformation at a single angle, and preventing excessive local deformation of the dustproof spring 20 that could lead to irreversible reset. This ensures a long service life for the dustproof spring 20, achieving good elasticity and dustproof effect. Compared to existing adapters that use dustproof plugs, this eliminates the need for plug removal, making it simpler to use.

[0034] Furthermore, the dustproof spring 20 and the insert 31 are relatively thin. The dustproof spring 20 can be made of one of the following: copper, copper alloy, stainless steel, and plastic. If copper, copper alloy, or stainless steel is used as the material, the dustproof spring 20 can be mass-produced by die-cutting. The dustproof spring 20 is formed into a long piece by die-casting mold, and then the required length of dustproof spring 20 is formed by fixed-length die-cutting. The dustproof spring 20 designed in this way not only has high manufacturing cost and production capacity, but also makes the assembly of the dustproof spring 20 and the insert 31 simple. The dustproof spring 20 is inserted into the groove 31 and then the insert is inserted for fixation. The assembly process is simple and can be mass-produced by automatic equipment. Meanwhile, existing adapters using inward and outward flip covers require the assembly of elastic components such as torsion springs to open or close the covers. These flip covers require numerous parts, and the torsion springs are small, making the assembly process cumbersome and difficult to automate in batches, resulting in high costs. The dustproof spring clip 20 in this solution not only eliminates the need for manual flip-opening but also simplifies the assembly process, enabling automated production. Furthermore, the dustproof spring clip 20 is made of PET material, which is resistant to high and low temperatures, has excellent elasticity, strong impact resistance, and a long service life.

[0035] Example 2

[0036] This embodiment provides a dustproof structure for an LC adapter, such as... Figure 9-10 As shown, unlike Embodiment 1, the dust cap 20 in this embodiment includes a cylindrical head 21 embedded in the mounting block 30, and a straight segment 22, a first arc segment 23, a second arc segment 24, a third arc segment 25, a diagonal segment 26, and a closed segment 27 sequentially connected to the cylindrical head 21. The dust cap 20 is made of beryllium copper, which has good elasticity. The closed segment 27 abuts against the inner wall of the cavity 11 to achieve the purpose of sealing and dust prevention, effectively preventing dust from entering the cavity 11. Since there are two cavities 11, the straight segment 22, the first arc segment 23, the second arc segment 24, the third arc segment 25, the diagonal segment 26, and the closed segment 27 are symmetrically connected to both sides of the cylindrical head 21. The mounting block 30 wraps and fixes the cylindrical head 21, which plays a stabilizing role and prevents the dust cap 20 from shifting position when the LC connector 50 is inserted into the cavity 11.

[0037] Furthermore, such as Figure 3As shown, to facilitate the assembly of the dust bomb cover 20, unlike Embodiment 1, the mounting block 30 in this embodiment has a circular groove 31 for the cylindrical head 21 to be inserted, and a groove 33 for the straight segment 22 of the dust bomb cover 20 to pass through. The groove 33 connects from the circular groove 31 to the bottom surface of the mounting block 30. After the cylindrical head 21 is inserted into the circular groove 31, the straight segment 22 is placed in the groove 33. Positioning blocks 32 are formed on both sides of the groove 33 on the mounting block 30 to abut against the straight segment 22. The positioning blocks 32 limit and fix the straight segment 22 on both sides of the cylindrical head 21, thereby ensuring that when the LC connector 50 is inserted into the two cavities 11, the first arc segment 23, the second arc segment 24, the third arc segment 25, the oblique segment 26 and the closed segment 27 in the two cavities 11 will not interfere with each other, so that the dust bomb cover 20 can work independently in the two cavities 11. Meanwhile, the positioning block 32 clamps the straight segments 22 on both sides of the cylindrical head 21, ensuring that the dust cover 20 will not shift during operation, resulting in stable dust protection and high structural stability.

[0038] Unlike Embodiment 1, the top two sides of the partition plate 40 have protrusions 41 that match the shape of the second arc-shaped segment 24. These protrusions 41 provide necessary support for the second arc-shaped segment 24 when needed. On both sides of the middle of the partition plate 40, clearance grooves 42 are formed for the third arc-shaped segment 25 to abut against. The third arc-shaped segment 25 then abuts against the side wall of the clearance groove 42, forming a clearance space, allowing for the smooth subsequent insertion and docking of the LC connector 50. Compared to Embodiment 1, this eliminates the need for an insert piece, making the assembly process simpler and faster.

[0039] This embodiment also provides the dimensions of the dust cap 20 to ensure that the LC connector 50 is inserted into the connecting sleeve 60 in the aforementioned abutment relationship when inserted into the cavity 11. The thickness of the dust cap 20 is 0.1 mm, the outer diameter of the cylindrical head 21 is 0.82 mm, the radius of the first arc segment 23 is 0.55 mm, the radius of the second arc segment 24 is 1 mm, the radius of the third arc segment 25 is 1.58 mm, the slope of the oblique segment 26 is 10°, the distance between the closed segment 27 and the center of the cylindrical head 21 is 5.48 mm, the total length of the two cavities 11 is 10.9 mm, the width of the LC connector 50 is 4.42 mm, and the outer diameter of the plug 51 of the LC connector 50 is 1.26 mm. The vertical distance between the center of the cylindrical head 21 and the center of the first arc segment 23 is 1.02 mm. The vertical distance between the center of the first arc segment 23 and the center of the third arc segment 25 is 0.7 mm. The vertical distance between the center of the third arc segment 25 and the center of the second arc segment 24 is 0.81 mm. The horizontal distance between the center of the cylindrical head 21 and the center of the third arc segment 25 is 2.8 mm. By setting the above parameters, during the insertion of the LC connector 50 into the cavity 11, the interaction between the plug 51 of the LC connector 50 and the bottom edge of the side wall of the LC connector 50 and the first arc segment 23, the second arc segment 24, the third arc segment 25, the oblique line segment 26, and the closed segment 27 of the dust cover 20 is ensured. This ensures that the dust cover 20 gradually undergoes elastic deformation, enabling the LC connector 50 to be stably inserted into the cavity 11 without damaging the elasticity of the dust cover 20, thus ensuring the service life of the dust cover 20 and achieving good elasticity and dustproof effect of the dust cover 20.

[0040] In summary, in the above embodiments, this application forms two cavities within the adapter body for inserting LC connectors. Each cavity contains a connecting sleeve for mating with the LC connector, thus enabling fiber optic connection through the mating of the LC connector and the connecting sleeve. The two cavities are separated by a partition plate. A mounting block is positioned at the top of the partition plate within the adapter body, and a dustproof spring is embedded within the mounting block. Both ends of the dustproof spring extend into the two cavities and abut against the inner sidewalls of the partition plate. This dustproof spring within the cavities provides dust protection for the adapter, preventing dust from entering while avoiding the increased volume caused by a flip-top structure, effectively reducing the overall size. Furthermore, the dustproof spring embedded in the mounting block allows for rapid installation by limiting its movement, resulting in fewer parts and higher assembly efficiency. After the LC connector is inserted into the cavity, the dustproof spring is elastically deformed and its two sides abut against the partition plate and the side wall of the LC connector respectively, thereby achieving the connection between the LC connector and the connecting sleeve. After the LC connector is pulled out, the dustproof spring elastically returns to its original position, and the end of the dustproof spring abuts against the inner side wall of the cavity again, achieving a sealing and dustproof effect. No manual operation of the dustproof spring is required, making it extremely easy to use.

[0041] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the scope of protection of this technical solution.

Claims

1. A dustproof structure for an LC adapter, characterized in that: The adapter body (10) includes an LC connector (50) into which the adapter body (10) is inserted. The adapter body (10) is divided by a partition plate (40) to form two cavities (11) into which the LC connector (50) is inserted. An installation block (30) is provided above the partition plate (40) in the adapter body (10). A dustproof spring (20) is embedded in the installation block (30). The two ends of the dustproof spring (20) extend into the two cavities (11) and abut against the inner sidewalls of the partition plate (40). The LC connector (50) can be inserted into the cavity (11) so that the dustproof spring (20) can be elastically deformed and its two sides abut against the sidewalls of the partition plate (40) and the LC connector (50) respectively. The dustproof spring clip (20) includes a semi-circular head (21) embedded in the mounting block (30), and a first straight segment (22), a second straight segment (23), a first arc segment (231), a third straight segment (24), a second arc segment (25), a fourth straight segment (26) symmetrically connected to the semi-circular head (21), and a closed segment (27) abutting against the inner wall of the cavity (11); the dustproof spring clip (20) is made of beryllium copper; The mounting block (30) has a groove (32) for the semi-circular head (21) and the first straight segment (22) to be embedded. The top of the partition plate (40) is fitted with an insert (31) that extends into the groove (32). The semi-circular head (21) and the first straight segment (22) of the dustproof spring (20) are placed in the gap between the insert (31) and the side wall of the groove (32). The top two sides of the partition plate (40) have protrusions (41) that match the shape of the first arc segment (231), and the middle two sides of the partition plate (40) have clearance grooves (42) for the second arc segment (25) to abut against. The thickness of the dustproof spring clip (20) is 0.05-0.1 mm; the outer diameter of the semi-circular head (21) is 0.7-0.8 mm; the length of the first straight segment (22) is 1-1.2 mm; the length of the second straight segment (23) is 1.6-1.7 mm; the length of the third straight segment (24) is 1.2-1.3 mm; the length of the fourth straight segment (26) is 3.7-3.8 mm; the distance between the end of the closed segment (27) and the center of the semi-circular head (21) is 5.85-5.95 mm; the angle between the first straight segment (22) and the second straight segment (23) is 120°-130°; the angle between the second straight segment (23) and the third straight segment (24) is 132°-135°; and the angle between the third straight segment (24) and the fourth straight segment (26) is 115°-120°.

2. The dustproof structure of the LC adapter according to claim 1, characterized in that: The bottom of the LC connector (50) has a plug (51); the cavity (11) of the adapter body is provided with a connecting sleeve (60) for mating with the plug (51); the LC connector (50) is inserted into the cavity (11), and the plug (51) abuts against the fourth straight segment (26), the first arc segment (231) abuts against the side wall of the LC connector (50), and the second arc segment (25) is located in the clearance groove (42) and abuts against the partition plate (40).

3. The dustproof structure of the LC adapter according to any one of claims 1-2, characterized in that: The dustproof shrapnel (20) is made of one of the following materials: copper alloy, stainless steel, and plastic.

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