Dustproof and anti-misplug optical fiber adapter
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN JIAWANG OPTICAL COMM CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-12
AI Technical Summary
Existing dust plugs are prone to coming off due to vibration, causing the fiber optic interface to open and allowing dust or foreign objects to enter. They are also small and easily lost.
A dustproof and mis-insertion-proof fiber optic adapter was designed. It adopts an elastic structure to limit the rotation of the connecting arm, ensuring that the protective cover fits tightly with the fiber optic interface. The sealing effect is improved by the sealing gasket. At the same time, the protective cover is rotatably connected to the interface and does not need to be removed separately.
It effectively prevents dust and foreign objects from entering the interface, reduces the risk of damage, avoids loss of the protective cover, and facilitates use.
Smart Images

Figure CN224232001U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical fiber connection technology, and more specifically, to a dustproof and mis-insertion-proof optical fiber adapter. Background Technology
[0002] Fiber optic adapters are the most widely used passive optical devices in fiber optic communication systems. Different types of fiber optic connectors can be inserted into both ends of the fiber optic adapter to achieve conversion between different interfaces such as FC, SC, ST, LC, MTRJ, MPO, and E2000. They are widely used in fiber optic distribution frames, fiber optic communication equipment, instruments, etc., and have superior performance and are stable and reliable. Fiber optic adapters mainly consist of two different types of fiber optic interfaces. At the same time, dust plugs are installed inside the fiber optic connectors to prevent the fiber optic interfaces from being damaged by dust or misinsertion.
[0003] Existing dust plugs are generally inserted directly into the interface. When users carry them out, they are easily dislodged due to vibrations during transport. Once dislodged, the interface is left unprotected and exposed, making it susceptible to dust entry or damage from foreign objects. Furthermore, the dust plugs are small in size and easily lost after removal. Therefore, this utility model proposes a new solution. Utility Model Content
[0004] The purpose of this invention is to solve the problems of existing dust plugs, which are generally inserted directly into the interface. When users carry them out, they are easily dislodged from the interface due to vibrations during the journey. After dislodging, the interface is left in an unprotected open state, which makes it easy for dust to enter or for foreign objects to be accidentally inserted and damaged. In addition, the dust plugs are small in size and are very easy to lose after being removed. Therefore, this invention proposes a dustproof and mis-insertion-proof fiber optic adapter.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] Dustproof and mis-plug-proof fiber optic adapters are used to improve the above-mentioned problems.
[0007] The present invention is as follows:
[0008] The device includes a connector, on which a first optical fiber interface and a second optical fiber interface are respectively installed on the two side walls. A mounting base is fixedly installed on the top of the connector. A first connecting arm and a second connecting arm are rotatably installed on the mounting base. An elastic structure for increasing the rotational resistance of the first connecting arm and the second connecting arm is installed on the mounting base. A first protective cover for sealing the first optical fiber interface is fixedly connected to the end of the first connecting arm away from the mounting base. A second protective cover for sealing the second optical fiber interface is fixedly connected to the end of the second connecting arm away from the mounting base. A first sealing gasket is installed on the inner wall of both the first and second protective covers.
[0009] As a preferred technical solution of this utility model, the mounting base includes a first side plate and a second side plate symmetrically mounted on the top of the connecting base, and a mounting shaft that cooperates with the first connecting arm and the second connecting arm is installed between the first side plate and the second side plate.
[0010] As a preferred technical solution of this utility model, the two ends of the mounting shaft pass through the first side plate and the second side plate respectively, and are threadedly connected to the first side plate and the second side plate. The top end of the mounting shaft is provided with a groove, which is either in the shape of a straight line or a cross.
[0011] As a preferred technical solution of this utility model, both the first connecting arm and the second connecting arm are provided with mounting holes that cooperate with the mounting shaft.
[0012] As a preferred technical solution of this utility model, the elastic structure includes a first torsion spring and a second torsion spring respectively connected to the first side plate and the second side plate. The first torsion spring and the second torsion spring are both sleeved on the outside of the mounting shaft. The end of the first torsion spring away from the first side plate is connected to the side wall of the second connecting arm, and the end of the second torsion spring away from the second side plate is connected to the side wall of the first connecting arm.
[0013] As a preferred technical solution of this utility model, the top ends of the first connecting arm and the second connecting arm are fixedly connected with pressing blocks perpendicular to each other, and the inner sides of the first connecting arm and the second connecting arm are fixedly installed with second sealing gaskets for sealing the guide grooves on the first optical fiber interface and the second optical fiber interface.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This dustproof and mis-insertion-proof fiber optic adapter, during use, has an elastic structure that restricts the rotation of the first and second connecting arms through its own elasticity. This ensures that the first and second protective covers are always tightly fitted to the first and second fiber optic interfaces, effectively preventing them from detaching from the interfaces under vibration. This significantly reduces the possibility of dust entering the interface or damage caused by foreign objects being mistakenly inserted, thus better protecting the interface. Furthermore, the first sealing gasket further enhances the sealing effect, further preventing dust and other impurities from entering the interface.
[0016] 2. In this dustproof and mis-insertion-proof fiber optic adapter, the first and second protective covers are rotatably connected to the connector via the first connecting arm and the mounting base. When connecting the fiber optic cable, the first and second protective covers can be detached from the first and second fiber optic interfaces by rotating the first and second connecting arms. They do not need to be removed and placed separately, eliminating the problem of loss, making it convenient for users and reducing the inconvenience caused by component loss. Attached Figure Description
[0017] Figure 1 A schematic diagram of the overall structure of the dustproof and mis-insertion-proof fiber optic adapter provided by this utility model;
[0018] Figure 2 Exploded view of the dustproof and mis-insertion-proof fiber optic adapter provided by this utility model;
[0019] Figure 3 A schematic diagram of the mounting shaft structure of the dustproof and mis-insertion-proof fiber optic adapter provided by this utility model;
[0020] Figure 4 A schematic diagram of the first connecting arm structure of the dustproof and mis-insertion-proof fiber optic adapter provided by this utility model;
[0021] Figure 5 A schematic diagram of the second connecting arm structure of the dustproof and mis-insertion-proof fiber optic adapter provided by this utility model.
[0022] The image shows:
[0023] 1. Connector; 2. First fiber optic interface; 3. Second fiber optic interface; 4. First connecting arm; 5. Second connecting arm; 6. Mounting base; 7. First protective cover; 8. Second protective cover; 9. First sealing gasket; 10. Mounting hole; 11. First torsion spring; 12. Second torsion spring; 13. Second sealing gasket; 14. Pressing block; 601. First side plate; 602. Second side plate; 603. Mounting shaft. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0025] like Figures 1-5 As shown, this embodiment proposes a dustproof and mis-insertion-proof fiber optic adapter, including a connector 1. A first fiber optic interface 2 and a second fiber optic interface 3 are respectively installed on the two side walls of the connector 1. A mounting base 6 is fixedly installed on the top of the connector 1. A first connecting arm 4 and a second connecting arm 5 are rotatably mounted on the mounting base 6. An elastic structure is installed on the mounting base 6 to increase the rotational resistance of the first connecting arm 4 and the second connecting arm 5. A first protective cover 7 for sealing the first fiber optic interface 2 is fixedly connected to the end of the first connecting arm 4 away from the mounting base 6. A second protective cover 8 for sealing the second fiber optic interface 3 is fixedly connected to the end of the second connecting arm 5 away from the mounting base 6. A first sealing gasket 9 is installed on the inner wall of both the first protective cover 7 and the second protective cover 8. During use, the elastic structure can limit the rotation of the first connecting arm 4 and the second connecting arm 5 through its own elasticity, thereby ensuring that the first protective cover 7 and the second protective cover 8 are always protected. The first protective cover 7 and the second protective cover 8 are tightly fitted to the ports of the first optical fiber interface 2 and the second optical fiber interface 3, which can effectively prevent the first protective cover 7 and the second protective cover 8 from detaching from the ports of the first optical fiber interface 2 and the second optical fiber interface 3 under vibration. This greatly reduces the possibility of dust entering the interface or the interface being damaged by the accidental insertion of foreign objects, thus better protecting the interface. Moreover, the setting of the first sealing gasket 9 can further improve the sealing effect, thereby better blocking dust and other impurities from entering the interface. The first protective cover 7 and the second protective cover 8 are rotatably connected to the connecting base 1 through the first connecting arm 4 and the mounting base 6. When connecting optical fibers, the first protective cover 7 and the second protective cover 8 can be detached from the first optical fiber interface 2 and the second optical fiber interface 3 by rotating the first connecting arm 4 and the second connecting arm 5. They do not need to be removed and placed separately, eliminating the problem of loss, making it convenient for users and reducing the inconvenience caused by the loss of parts.
[0026] like Figure 1-3 As shown, in a preferred embodiment, based on the above method, the mounting base 6 further includes a first side plate 601 and a second side plate 602 symmetrically mounted on the top of the connecting base 1. A mounting shaft 603, which cooperates with the first connecting arm 4 and the second connecting arm 5, is installed between the first side plate 601 and the second side plate 602. It should be noted that the arrangement of the first side plate 601 and the second side plate 602 facilitates the installation of the mounting shaft 603, and the mounting shaft 603 facilitates the rotational connection between the first connecting arm 4 and the second connecting arm 5 and the connecting base 1.
[0027] like Figure 1-3 As shown, in a preferred embodiment, based on the above method, the two ends of the mounting shaft 603 respectively pass through the first side plate 601 and the second side plate 602, and are threadedly connected to the first side plate 601 and the second side plate 602. A groove is provided at the top end of the mounting shaft 603, which is either straight or cross-shaped. It should be noted that, through the groove at the top end of the mounting shaft 603, the mounting shaft 603 can be disassembled from the first side plate 601 and the second side plate 602 using a screwdriver during use, thereby facilitating the disassembly and installation of the first connecting arm 4 and the second connecting arm 5.
[0028] like Figure 2 , Figure 4 and Figure 5 As shown, in a preferred embodiment, based on the above method, both the first connecting arm 4 and the second connecting arm 5 are further provided with mounting holes 10 that cooperate with the mounting shaft 603. It should be noted that the mounting holes 10 facilitate the rotational mounting of the first connecting arm 4 and the second connecting arm 5 onto the mounting shaft 603.
[0029] like Figures 1-3 As shown, in a preferred embodiment, based on the above method, the elastic structure further includes a first torsion spring 11 and a second torsion spring 12 connected to the first side plate 601 and the second side plate 602 respectively. Both the first torsion spring 11 and the second torsion spring 12 are sleeved on the outside of the mounting shaft 603. The end of the first torsion spring 11 away from the first side plate 601 is connected to the side wall of the second connecting arm 5, and the end of the second torsion spring 12 away from the second side plate 602 is connected to the side wall of the first connecting arm 4. It should be noted that the arrangement of the first torsion spring 11 and the second torsion spring 12 increases the resistance during rotation of the first connecting arm 4 and the second connecting arm 5, thereby preventing the first protective cover 7 and the second protective cover 8 on the first connecting arm 4 and the second connecting arm 5 from detaching from the first optical fiber interface 2 and the second optical fiber interface 3 when encountering vibration.
[0030] like Figure 2 , Figure 4 and Figure 5As shown, in a preferred embodiment, based on the above method, furthermore, pressing blocks 14 perpendicular to each other are fixedly connected to the top ends of both the first connecting arm 4 and the second connecting arm 5, and second sealing gaskets 13 for sealing the guide grooves on the first optical fiber interface 2 and the second optical fiber interface 3 are fixedly installed on the inner sides of both the first connecting arm 4 and the second connecting arm 5. It should be noted that, in use, the second sealing gaskets 13 can cooperate with the first connecting arm 4 and the second connecting arm 5 to seal the guide grooves on the first optical fiber interface 2 and the second optical fiber interface 3, thereby preventing dust from entering the interior of the first optical fiber interface 2 and the second optical fiber interface 3 through the guide grooves. The pressing blocks 14 facilitate the user's rotation of the first connecting arm 4 and the second connecting arm 5.
[0031] Specifically, the working principle of this dustproof and mis-insertion-proof fiber optic adapter is as follows: When it is necessary to insert a fiber optic connector into the first fiber optic interface 2 and the second fiber optic interface 3, by rotating the pressing block 14, the first connecting arm 4 and the second connecting arm 5 can be rotated, which can cause the first protective cover 7 and the second protective cover 8 to detach from the ends of the first fiber optic interface 2 and the second fiber optic interface 3, thereby keeping the first fiber optic interface 2 and the second fiber optic interface 3 in an open state, which facilitates the insertion of the fiber optic connector. When carried out, the elastic structure on 6 can limit the rotation of the first connecting arm 4 and the second connecting arm 5 through its own elasticity, so that the first protective cover 7 and the second protective cover 8 always remain in a tight fit with the ends of the first fiber optic interface 2 and the second fiber optic interface 3, which can effectively prevent the first protective cover 7 and the second protective cover 8 from detaching from the ports of the first fiber optic interface 2 and the second fiber optic interface 3 in a vibration environment.
[0032] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.
Claims
1. A dustproof and mis-insertion-proof fiber optic adapter, comprising a connector (1), wherein a first fiber optic interface (2) and a second fiber optic interface (3) are respectively installed on the two side walls of the connector (1), characterized in that, A mounting base (6) is fixedly installed on the top of the connector (1). A first connecting arm (4) and a second connecting arm (5) are rotatably mounted on the mounting base (6). An elastic structure for increasing the rotational resistance of the first connecting arm (4) and the second connecting arm (5) is installed on the mounting base (6). A first protective cover (7) for sealing the first optical fiber interface (2) is fixedly connected to the end of the first connecting arm (4) away from the mounting base (6). A second protective cover (8) for sealing the second optical fiber interface (3) is fixedly connected to the end of the second connecting arm (5) away from the mounting base (6). A first sealing gasket (9) is installed on the inner wall of both the first protective cover (7) and the second protective cover (8).
2. The dustproof and mis-insertion-proof fiber optic adapter according to claim 1, characterized in that, The mounting base (6) includes a first side plate (601) and a second side plate (602) symmetrically mounted on the top of the connecting base (1), and a mounting shaft (603) that cooperates with the first connecting arm (4) and the second connecting arm (5) is installed between the first side plate (601) and the second side plate (602).
3. The dustproof and mis-insertion-proof fiber optic adapter according to claim 2, characterized in that, The two ends of the mounting shaft (603) pass through the first side plate (601) and the second side plate (602) respectively, and are threadedly connected to the first side plate (601) and the second side plate (602). The top end of the mounting shaft (603) is provided with a groove, which is either in the shape of a straight line or a cross.
4. The dustproof and mis-insertion-proof fiber optic adapter according to claim 2, characterized in that, Both the first connecting arm (4) and the second connecting arm (5) have through-holes (10) that cooperate with the mounting shaft (603).
5. A dustproof and mis-insertion-proof fiber optic adapter according to claim 2, characterized in that, The elastic structure includes a first torsion spring (11) and a second torsion spring (12) connected to the first side plate (601) and the second side plate (602) respectively. The first torsion spring (11) and the second torsion spring (12) are both sleeved on the outside of the mounting shaft (603). The end of the first torsion spring (11) away from the first side plate (601) is connected to the side wall of the second connecting arm (5), and the end of the second torsion spring (12) away from the second side plate (602) is connected to the side wall of the first connecting arm (4).
6. A dustproof and mis-insertion-proof fiber optic adapter according to claim 1, characterized in that, The top ends of the first connecting arm (4) and the second connecting arm (5) are fixedly connected with pressing blocks (14) perpendicular to each other, and the inner sides of the first connecting arm (4) and the second connecting arm (5) are fixedly installed with second sealing gaskets (13) for sealing the guide grooves on the first optical fiber interface (2) and the second optical fiber interface (3).