Through-wall protection device of optical fiber connector

By designing a protective box and inner and outer protective pads for the fiber optic connector, the problem of moisture and wear on the fiber optic connector during wall penetration was solved, achieving stable fixation and moisture removal of the fiber optic cable, and extending its service life.

CN224035676UActive Publication Date: 2026-03-24HUBEI BAIDI OPTOELECTRONICS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing fiber optic connectors are prone to moisture damage and friction with wall corners during wall penetration, resulting in a reduced lifespan.

Method used

A wall-penetrating protection device for fiber optic connectors was designed, comprising a protective housing, inner and outer protective pads, a threaded rod, and a bearing outer ring. The fiber optic cable is fixed by adjusting the spacing of the inner protective pads, and the moisture-absorbing solid block is used to exchange gases with the gas inside the protective housing to reduce the impact of moisture.

Benefits of technology

It improves the stability and lifespan of fiber optic connectors, prevents fiber wear, and reduces fiber loss due to moisture.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a through-wall protection device for an optical fiber connector, which comprises a protection box body, the inner side of the protection box body is fixedly connected with an outer protection pad, the inner wall of the protection box body is fixedly connected with a threaded rod, and the surface of the threaded rod is in threaded connection with a threaded sleeve. Through movable connection of the bearing outer ring and the inner protection pads, the stability of the inner protection pads is kept through movable connection of the bearing outer ring in the process of rotating the threaded sleeve, at the moment, when the threaded sleeve is rotated to adjust the horizontal position, the inner protection pads can be synchronously driven to be located at the horizontal position in the protection box body, and by adjusting the positions of the two inner protection pads correspondingly, the inner protection pads can be protected. The distance between the inner protection pads can be adjusted according to the widths of different connectors and optical fibers, the distance between the inner protection pads is shortened after a cable penetrates through the protection box, the two inner protection pads are used for fixing the optical fiber cable, and the stability of the optical fiber cable placed in the protection box is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of optical fiber connector technology, and more specifically, it relates to a wall-penetrating protection device for optical fiber connectors. Background Technology

[0002] A fiber optic connector wall penetration protection device is a safety device specifically designed to protect fiber optic connectors when passing through obstacles such as walls and pipes. The main purpose of this device is to prevent fiber optic cables from being damaged during the wall penetration process, ensuring the stability and reliability of the fiber optic connection.

[0003] In the prior art, patent application CN219799840U discloses a "wall-penetrating protection device for an optical fiber connector and its optical fiber connector head," which includes a protective cap and a pulling head. One end of the protective cap has a socket that fits onto the optical fiber connector head. The pulling head is for lead wire connection and is adjustable in direction at the end opposite to the protective cap and the socket, allowing it to rotate relative to the optical fiber connector head, thus adjusting the direction angle of the optical fiber connector head and the lead wire on the pulling head. Before the optical fiber connector passes through the hole, the lead wire carries the optical fiber connector forward, solving the problem of inconvenient operation of the optical fiber connector in confined spaces. It also makes the threading of the optical fiber connector more accurate and stable. During the threading process, when the direction of the optical fiber connector is misaligned with the direction of the lead wire, the pulling head will rotate relative to the protective cap, keeping the optical fiber in its routing state and preventing the optical fiber and lead wire of the optical fiber connector head from twisting, thus improving the safety of the threading.

[0004] The aforementioned "a fiber optic connector and its fiber optic connector wall protection device" still has some drawbacks. For example, existing fiber optic connectors need to be used by passing through the wall. However, if left for a long time, the wall is prone to moisture, which can easily cause damage to the fiber. At the same time, when the fiber moves inside the wall, it is easy to rub against the corner of the wall, causing wear and reducing the service life of the fiber.

[0005] To address this issue, a wall-penetrating protection device for fiber optic connectors is proposed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a wall-penetrating protection device for fiber optic connectors, thereby solving the problems mentioned in the background art, such as the fiber optic cable being susceptible to moisture in the wall area during long-term placement, which can easily cause damage to the fiber optic cable, and the fiber optic cable being prone to friction and wear when moved within the wall, which reduces the service life of the fiber optic cable.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A wall-penetrating protection device for an optical fiber connector includes a protective housing. An outer protective pad is fixedly connected to the inner side of the protective housing. A threaded rod is fixedly connected to the inner wall of the protective housing. A threaded sleeve is threadedly connected to the surface of the threaded rod. A bearing outer ring is movably connected to one side of the threaded sleeve. An inner protective pad is movably connected to one side of the bearing outer ring.

[0009] As a preferred embodiment, the number of threaded rods is two, and the surfaces of both threaded rods are threadedly connected to threaded sleeves, and the surfaces of both threaded sleeves are fixedly connected to gripping plates.

[0010] As a preferred embodiment, one end of the threaded rod is fixedly connected to a buffer pad, and the buffer pad is made of sponge.

[0011] As a preferred embodiment, an outer storage box is fixedly connected to the inner side of the protective box, and a fixing box is fixedly connected to one side of the outer storage box. An inner communicating groove is provided on the inner side of the fixing box.

[0012] As a preferred embodiment, a side sleeve frame is provided on one side of the fixing box, a bottom spring body is fixedly connected to the inner side of the inner connecting groove, and a limit plate is fixedly connected to the top of the bottom spring body.

[0013] As a preferred embodiment, the surface of the outer storage box is provided with an outer connecting frame, and the inner side of the outer storage box is provided with an inner material box.

[0014] As a preferred embodiment, the surface of the inner material box is provided with an inner connecting frame, and a side handle is fixedly connected to one side of the inner material box.

[0015] As a preferred embodiment, the bottom of the inner material box is fixedly connected to a bottom sliding plate, and the inner side of the outer storage box is provided with an inner sliding rail.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) This utility model uses the movable connection between the outer ring of the bearing and the inner protective pad to maintain the stability of the inner protective pad during the rotation of the threaded sleeve. At this time, when the threaded sleeve is rotated to adjust the horizontal position, the horizontal position of the inner protective pad in the protective box will be driven simultaneously. By adjusting the position of the two inner protective pads respectively, the spacing between the inner protective pads can be adjusted according to different connectors and fiber widths. At the same time, after the cable is passed through, the distance between the inner protective pads is shortened. The two inner protective pads are used to fix the fiber cable, which improves the stability of the fiber cable after it is placed in the protective box.

[0018] (2) In this utility model, after the inner material box is pulled out, the desiccant material is placed inside the inner material box. The inner material box is then pushed back to the inner side of the outer storage box. After the limiting plate is released, the bottom spring loses external force and resets, pushing the limiting plate upward along the inner side of the inner connecting groove. The limiting plate limits the inner material box, keeping it inside the outer storage box. The inner and outer connecting frames on the surfaces of the inner and outer storage boxes allow the desiccant material inside the inner material box to exchange with the gas inside the protective box, reducing the impact of moisture inside the protective box on the optical fiber and improving the protectiveness of the protective box. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the inner protective pad structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the bearing outer ring structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the inner material box structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the fixing box structure of this utility model;

[0025] The following are the labels in the diagram: 1. Protective housing; 201. Outer protective pad; 202. Inner protective pad; 203. Bearing outer ring; 204. Threaded sleeve; 205. Grip plate; 206. Threaded rod; 207. Buffer pad; 301. Outer storage box; 302. Outer connecting frame; 303. Inner material box; 304. Inner connecting frame; 305. Side grip rod; 306. Fixing box; 307. Side sleeve frame; 308. Limiting plate; 309. Bottom spring body; 3010. Inner connecting groove; 3011. Bottom sliding plate; 3012. Inner slide rail. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] Please see Figures 1 to 3 As shown, this embodiment of the utility model provides a wall-penetrating protection device for fiber optic connectors, specifically including a protective housing 1. An outer protective pad 201 is fixedly connected to the inner side of the protective housing 1, and a threaded rod 206 is fixedly connected to the inner wall of the protective housing 1. A threaded sleeve 204 is threadedly connected to the surface of the threaded rod 206. A bearing outer ring 203 is movably connected to one side of the threaded sleeve 204, and an inner protective pad 202 is movably connected to one side of the bearing outer ring 203. In this embodiment, when the threaded sleeve 204 is rotated to adjust the horizontal position, the horizontal position of the inner protective pad 202 within the protective housing 1 is simultaneously adjusted. By adjusting the positions of the two inner protective pads 202 respectively, the spacing between the inner protective pads 202 can be adjusted according to different connector and fiber widths. Simultaneously, after the cable passes through, the distance between the inner protective pads 202 is shortened, and the two inner protective pads 202 are used to fix and limit the fiber optic cable.

[0028] Please see Figures 1 to 3 As shown, there are two threaded rods 206, and each of the two threaded rods 206 has a threaded sleeve 204 threadedly connected to its surface. Each of the two threaded sleeves 204 has a gripping plate 205 fixedly connected to its surface. When the operator grips the gripping plate 205, rotating the threaded sleeve 204 causes it to rotate. Through the engagement between the threaded sleeve 204 and the threaded rod 206, the rotating sleeve moves horizontally along the surface of the threaded rod 206. A buffer pad 207, made of sponge, is fixedly connected to one end of the threaded rod 206. When the threaded rod 206 contacts the inner protective pad 202, the buffer pad 207 reduces the hard impact between the inner protective pad 202 and the threaded rod 206, improving the stability of the inner protective pad 202.

[0029] Please see Figure 4 and Figure 5 As shown, an outer storage box 301 is fixedly connected to the inner side of the protective box 1. A fixed box 306 is fixedly connected to one side of the outer storage box 301. An inner communicating groove 3010 is provided on the inner side of the fixed box 306. A side sleeve frame 307 is provided on one side of the fixed box 306. A bottom spring body 309 is fixedly connected to the inner side of the inner communicating groove 3010. A limiting plate 308 is fixedly connected to the top of the bottom spring body 309. In this embodiment, after the limiting plate 308 is released, the bottom spring body 309 loses external force and resets, pushing the limiting plate 308 to move upward along the inner side of the inner communicating groove 3010. The limiting plate 308 is used to limit the inner material box 303, limiting the inner material box 303 to the inner side of the outer storage box 301.

[0030] Please see Figure 4 and Figure 5 As shown, an outer connecting frame 302 is provided on the surface of the outer storage box 301, and an inner material box 303 is provided inside the outer storage box 301. An inner connecting frame 304 is provided on the surface of the inner material box 303, and a side handle 305 is fixedly connected to one side of the inner material box 303. By limiting the inner material box 303 to the inside of the outer storage box 301, the inner connecting frame 304 and the outer connecting frame 302 provided on the surfaces of the inner material box 303 and the outer storage box 301 are used to exchange the desiccant material in the inner material box 303 with the gas in the protective box 1, reducing the impact of moisture in the protective box 1 on the optical fiber and improving the protective performance of the protective box 1.

[0031] Please see Figure 4 and Figure 5 As shown, a bottom slide plate 3011 is fixedly connected to the bottom of the inner material box 303, and an inner slide rail 3012 is provided on the inner side of the outer storage box 301. After the inner material box 303 is pulled out horizontally along the inner side of the outer storage box 301, it slides along the inner side of the inner slide rail 3012 via the bottom slide plate 3011, which improves the stability of the inner material box 303 moving horizontally within the outer storage box 301.

[0032] In this embodiment, during daily operation, the protective housing 1 is first placed inside the wall. When it is necessary to pass the fiber optic connector through the inside of the protective housing 1, the operator first holds the gripping plate 205 and rotates the threaded sleeve 204, depending on the size of the fiber optic connector and the width of the optical cable. By moving the gripping plate 205, the threaded sleeve 204 is rotated. Through the engagement between the threaded sleeve 204 and the threaded rod 206, the threaded sleeve 204 moves horizontally along the surface of the threaded rod 206 after rotation. It is also connected to the inner protective pad 202 through the outer bearing ring 203. During process 04, the stability of the inner protective pad 202 is maintained by the movable connection of the outer ring 203 of the bearing. At this time, when the threaded sleeve 204 is rotated to adjust the horizontal position, the horizontal position of the inner protective pad 202 in the protective box 1 will be driven simultaneously. By adjusting the position of the two inner protective pads 202 respectively, the spacing between the inner protective pads 202 can be adjusted according to different connectors and fiber widths. At the same time, after the cable is passed through, the distance between the inner protective pads 202 is shortened. The two inner protective pads 202 are used to fix the fiber optic cable, which improves the stability of the fiber optic cable after it is placed in the protective box 1.

[0033] Simultaneously, after placing the fiber optic cable, pressing the limiting plate 308 causes it to move downwards. The limiting plate 308 then moves vertically downwards along the inner side of the side sleeve frame 307. This vertical downward movement causes the bottom spring body 309 to undergo compression deformation. Simultaneously, after moving vertically downwards along the inner side of the inner connecting groove 3010, the top of the limiting plate 308 loses contact with one side of the inner material box 303 and enters the inner connecting groove 3010. At this point, the inner material box 303 loses its position relative to the limiting plate 308. The operator then grasps the side handle 305 and pulls the inner material box 303 horizontally along the inner side of the outer storage box 301. After horizontally pulling the inner material box 303 along the inner side of the outer storage box 301, it slides along the inner side of the inner slide rail 3012 via the bottom sliding plate 3011, raising the inner material box. The stability of the horizontal movement of 303 along the outer storage box 301 is achieved by pulling out the inner material box 303, placing the dehumidifying solid material inside the inner material box 303, and then pushing the inner material box 303 back to the inner side of the outer storage box 301. At this time, after releasing the limiting plate 308, the bottom spring body 309 loses external force and resets, pushing the limiting plate 308 upward along the inner side of the inner connecting groove 3010. The limiting plate 308 limits the inner material box 303, limiting it to the inner side of the outer storage box 301. At this time, the inner connecting frame 304 and the outer connecting frame 302 opened on the surface of the inner material box 303 and the outer storage box 301 exchange the dehumidifying solid material in the inner material box 303 with the gas in the protective box 1, reducing the impact of moisture in the protective box 1 on the optical fiber and improving the protection of the protective box 1.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art and are not key to this utility model, therefore they will not be elaborated upon.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A wall-penetrating protection device for an optical fiber connector, comprising a protective housing (1), characterized in that: An outer protective pad (201) is fixedly connected to the inner side of the protective box (1), and a threaded rod (206) is fixedly connected to the inner wall of the protective box (1). A threaded sleeve (204) is threadedly connected to the surface of the threaded rod (206), and a bearing outer ring (203) is movably connected to one side of the threaded sleeve (204). An inner protective pad (202) is movably connected to one side of the bearing outer ring (203).

2. The wall penetration protection device for an optical fiber connector according to claim 1, characterized in that: The number of threaded rods (206) is two, and the surfaces of the two threaded rods (206) are threadedly connected to threaded sleeves (204), and the surfaces of the two threaded sleeves (204) are fixedly connected to gripping plates (205).

3. The wall penetration protection device for an optical fiber connector according to claim 1, characterized in that: One end of the threaded rod (206) is fixedly connected to a buffer pad (207), which is made of sponge.

4. The wall penetration protection device for an optical fiber connector according to claim 1, characterized in that: An outer storage box (301) is fixedly connected to the inner side of the protective box (1), and a fixed box (306) is fixedly connected to one side of the outer storage box (301). An inner communicating groove (3010) is opened on the inner side of the fixed box (306).

5. A wall-penetrating protection device for an optical fiber connector according to claim 4, characterized in that: A side sleeve frame (307) is provided on one side of the fixed box (306), and a bottom spring body (309) is fixedly connected to the inner side of the inner connecting groove (3010). A limit plate (308) is fixedly connected to the top of the bottom spring body (309).

6. The wall penetration protection device for an optical fiber connector according to claim 4, characterized in that: The outer storage box (301) has an outer connecting frame (302) on its surface, and an inner material box (303) is provided on the inner side of the outer storage box (301).

7. A wall-penetrating protection device for an optical fiber connector according to claim 6, characterized in that: The inner material box (303) has an inner connecting frame (304) on its surface, and a side handle (305) is fixedly connected to one side of the inner material box (303).

8. A wall-penetrating protection device for an optical fiber connector according to claim 6, characterized in that: The bottom of the inner material box (303) is fixedly connected to a bottom slide plate (3011), and the inner side of the outer storage box (301) is provided with an inner slide rail (3012).

Citation Information

Patent Citations

  • Optical fiber connector and through-wall protection device of optical fiber connector

    CN219799840U