Optical fiber adapter

Abstract

The utility model relates to an optical fiber adapter which comprises an adapter body (10) and a protective cap (20). The protective cap (20) comprises an inner cylinder (21) and an outer cover (22) arranged at one end of the inner cylinder; when the adapter body (10) is stored or transported, an inner cylinder (21) of the protective cap (20) is inserted into an insertion opening (11) of the adapter body (10), so that the end face of an outer cover (22) of the protective cap (20) abuts against the end face of the adapter body (10), and a moving rod (26) is pushed to enable an ejector rod (23) to slide along the side wall of the inner cylinder (21); meanwhile, the top plate (25) abuts against the inner wall of the adapter body (10) under the action of the spring (24), pressure and friction force are generated, the connection tightness of the protective cap (20) and the adapter body (10) is improved, and the situation that the interior of the adapter body (10) is contaminated with dust and other external foreign matter due to separation of the protective cap (20) and the adapter body (10), and normal use is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber adapters, in particular to an optical fiber adapter. Background Art

[0002] An optical fiber adapter, also known as an optical fiber connector, refers to a detachable, movable, and repeatedly pluggable connecting device for connecting one optical fiber to another, also known as an optical fiber movable joint, which is the most used optical passive device in an optical fiber communication system. It can achieve low-loss connection between optical fibers or between an optical fiber and a cable, effectively reducing the influence of optical fiber connection on signals. When an optical fiber adapter is stored or transported, a protective cap is equipped at its socket to prevent foreign objects such as dust from entering the interior of the optical fiber adapter and affecting its normal use. The protective caps of existing optical fiber adapters are usually made of rubber or other soft materials. During long-term storage or transportation, the protective cap is likely to separate from the socket of the optical fiber adapter, resulting in the interior of the optical fiber adapter being contaminated with foreign objects such as dust, affecting normal use. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is that the protective caps of existing optical fiber adapters are usually made of rubber or other soft materials. During long-term storage or transportation, the protective cap is likely to separate from the socket of the optical fiber adapter, resulting in the interior of the optical fiber adapter being contaminated with foreign objects such as dust, affecting normal use.

[0004] To solve the above problems, the utility model provides an optical fiber adapter, which includes an adapter body and a protective cap. The protective caps are detachably and symmetrically arranged in the sockets at both ends of the adapter body. The protective cap includes an inner cylinder and an outer cover arranged at one end of the inner cylinder. A top rod is slidably arranged on the side wall of the inner cylinder. One end of the top rod is connected with a top plate through a spring. The top plate is arranged outside the inner cylinder and can abut against the inner wall of the adapter body. A moving rod is arranged on the outer cover. One end of the moving rod extends into the inner cylinder and is rotatably provided with a connecting rod. The end of the connecting rod is rotatably connected with the other end of the top rod.

[0005] The optical fiber adapter provided by the utility model further has the following technical features:

[0006] The top rods are arranged on two opposite side walls of the inner cylinder.

[0007] The moving rod is slidably connected with the outer cover. The other end of the moving rod is fixedly provided with a baffle. The baffle is arranged on the side of the outer cover away from the inner cylinder. When the baffle abuts against the outer cover, the movement of the moving rod along the outer cover is restricted.

[0008] A handle is arranged at the other end of the moving rod.

[0009] A through hole is formed on the side wall of the inner cylinder. The top rod slides along the through hole. A guide groove is axially formed at one end of the top rod. A guide rod slidably matched with the guide groove is arranged on the top plate. The spring is sleeved on the guide rod.

[0010] On one side of the top plate away from the inner cylinder, anti-slip patterns are provided.

[0011] On the outer wall of the inner cylinder, a plurality of pressing strips are provided. The pressing strips are arranged along the length of the inner cylinder, and the thickness of the pressing strips gradually decreases from near to far away from the outer cover.

[0012] On both sides of the adapter body, connecting ear plates are symmetrically provided, and threaded holes are provided on the connecting ear plates.

[0013] The utility model has the following beneficial effects: When the adapter body is stored or transported, the inner cylinder of the protective cap is inserted into the socket of the adapter body, so that the end face of the outer cover of the protective cap abuts against the end face of the adapter body. Push the moving rod so that the ejector rod slides along the side wall of the inner cylinder. At the same time, under the action of the spring, the top plate abuts against the inner wall of the adapter body and generates pressure and friction, improving the tightness of the connection between the protective cap and the adapter body, and avoiding the internal contamination of the adapter body by external foreign matters such as dust caused by the separation of the two, affecting normal use. Description of the Drawings

[0014] Figure 1 is an exploded view of the parts of the utility model;

[0015] Figure 2 is a structural schematic diagram of the protective cap;

[0016] Figure 3 is an internal structure diagram of the protective cap;

[0017] Figure 4 is an axonometric drawing of the utility model. Detailed Embodiment

[0018] In the following, the utility model will be described in detail with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0019] As Figures 1 to 4 shown, the optical fiber adapter of the utility model includes an adapter body 10 and a protective cap 20. The protective cap 20 is detachably and symmetrically arranged in the sockets 11 at both ends of the adapter body 10. The protective cap 20 includes an inner cylinder 21 and an outer cover 22 arranged at one end of the inner cylinder. An ejector rod 23 is slidably arranged on the side wall of the inner cylinder 21. One end of the ejector rod 23 is connected to a top plate 25 through a spring 24. The top plate 25 is arranged outside the inner cylinder 21 and can abut against the inner wall of the adapter body 10. A moving rod 26 is provided on the outer cover 22. One end of the moving rod 26 extends into the inner cylinder 21 and is rotatably provided with a connecting rod 27. The end of the connecting rod 27 is rotatably connected to the other end of the ejector rod 23.

[0020] When the adapter body 10 is stored or transported, insert the inner cylinder 21 of the protective cap 20 into the socket 11 of the adapter body 10, so that the end face of the outer cover 22 of the protective cap 20 abuts against the end face of the adapter body 10. Push the moving rod 26 to make the ejector rod 23 slide along the side wall of the inner cylinder 21. At the same time, under the action of the spring 24, the top plate 25 abuts against the inner wall of the adapter body 10 and generates pressure and friction force, improving the tightness of the connection between the protective cap 20 and the adapter body 10, and preventing foreign matters such as dust from contaminating the inside of the adapter body 10 due to their separation, which affects normal use.

[0021] Wherein, an optical fiber connector is provided inside the adapter body 10 for detachably connecting two optical fibers. The specific structure of the optical fiber connector and its connection method with the optical fiber are prior arts and will not be elaborated here.

[0022] Wherein, the moving rod 26 is a square rod to prevent it from rotating during movement.

[0023] Wherein, the area of the end face of the outer cover 22 is larger than that of the end face of the adapter body 10, and the outer cover 22 is made of a soft material such as rubber or silica gel, so that its end face can abut against the end face of the adapter body 10 for sealing.

[0024] Wherein, the inner cylinder 21 has an inner cavity, and its cross-section is matched with the cross-section of the socket 11.

[0025] Preferably, ejector rods 23 are provided on both opposite side walls of the inner cylinder 21 to further improve the tightness of the connection between the protective cap 20 and the adapter body 10.

[0026] Wherein, the inner cylinder 21 is a square hollow structure, and the number of ejector rods 23 can be set to two or four, which can be selected according to actual applications. When the number of ejector rods 23 is two, the ejector rods 23 are oppositely arranged on two opposite side walls of the inner cylinder 21, and the top plate 25 can abut against two opposite inner walls of the adapter body 10 and generate pressure and friction force; when the number is four, the ejector rods 23 are oppositely arranged on four opposite side walls of the inner cylinder 21, and the top plate 25 can abut against the four inner walls of the adapter body 10 and generate pressure and friction force.

[0027] Preferably, the moving rod 26 is slidably connected to the outer cover 22. A baffle 28 is fixedly provided at the other end of the moving rod 26. The baffle 28 is arranged on the side of the outer cover 22 away from the inner cylinder 21. When the baffle 28 abuts against the outer cover 22, the movement of the moving rod 26 along the outer cover 22 is restricted.

[0028] Push the moving rod 26 to make one end of it slide from one side of the axis of the ejector rod 23 to the other side along the outer cover 22 towards the inner cylinder 21. At this time, the baffle 28 abuts against the outer cover 22, the moving rod 26 stops sliding, and at the same time, the connecting rod 27 and the ejector rod 23 are in a stable state.

[0029] When the moving rod 26 is stationary in the initial state, the distance between the surface of the baffle 28 close to the outer cover 22 is greater than the vertical distance between one end of the moving rod 26 and the axis of the ejector rod 23, so that one end of the moving rod 26 can move from one side of the axis of the ejector rod 23 to the other side and stop sliding under the action of the baffle 28.

[0030] Preferably, a handle 29 is provided at the other end of the moving rod 26.

[0031] Preferably, a through hole 30 is formed in the side wall of the inner cylinder 21, the ejector rod 23 slides along the through hole 30, a guide groove 31 is axially formed in one end of the ejector rod 23, a guide rod 32 slidably engaged with the guide groove 31 is provided on the top plate 25, and the spring 24 is sleeved on the guide rod 32 to limit the top plate 25 to move only along the axis direction of the ejector rod 23.

[0032] Preferably, anti-slip lines are provided on the side of the top plate 25 away from the inner cylinder 21.

[0033] Of course, the top plate 25 can also be made of anti-slip material, such as rubber, polyurethane or PVC, etc.

[0034] Preferably, a plurality of pressing strips 33 are provided on the outer wall of the inner cylinder 21, the pressing strips 33 are arranged along the length of the inner cylinder 21, and the thickness of the pressing strips 33 gradually decreases from near to far from the outer cover 22.

[0035] Wherein, the pressing strip 33 is made of rubber, and the minimum thickness and the maximum thickness of the pressing strip 33 satisfy that the side of the inner cylinder 21 away from the outer cover 22 can be inserted into the socket 11 of the adapter body 10, and the side of the inner cylinder 21 close to the outer cover 22 can be tightly connected with the socket 11 under the action of the pressing strip 33.

[0036] Preferably, connecting ear plates 12 are symmetrically provided on both sides of the adapter body 10, and threaded holes are provided on the connecting ear plates 12.

[0037] The working principle of the present utility model is as follows:

[0038] When the adapter body 10 is stored or transported, the inner cylinder 21 of the protective cap 20 is inserted into the socket 11 of the adapter body 10, so that the end face of the outer cover 22 of the protective cap 20 abuts against the end face of the adapter body 10. Push the handle 29, and one end of the moving rod 26 slides along the outer cover 22 towards the inner cylinder 21. One end of the moving rod 26 moves from one side of the axis of the ejector rod 23 to the other side. At this time, the baffle 28 abuts against the outer cover 22, causing the moving rod 26 to stop sliding. At the same time, the connecting rod 27 and the ejector rod 23 are in a stable state. Under the action of the spring 24, the top plate 25 abuts against the inner wall of the adapter body 10 and generates pressure and friction, improving the tightness of the connection between the protective cap 20 and the adapter body 10, and preventing foreign objects such as dust from entering the inside of the adapter body 10 due to their separation, which may affect normal use. When it is necessary to connect the optical fiber with the adapter body 10, pull the handle 29 outwards, and one end of the moving rod 26 passes through the axis of the ejector rod 23 in the reverse direction, so that the top plate 25 is separated from the inner wall of the adapter body 10, and then the inner cylinder 21 of the protective cap 20 is pulled out from the socket 11 of the adapter body 10.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An optical fiber adapter, characterized in that: The adapter body (10) comprises an adapter body (10) and a protective cap (20). The protective cap (20) is detachably and symmetrically arranged in sockets (11) at two ends of the adapter body (10). The protective cap (20) comprises an inner tube (21) and an outer cover (22) arranged at one end of the inner tube. A push rod (23) is slidably arranged on the side wall of the inner tube (21). One end of the push rod (23) is connected to a push plate (25) via a spring (24). The push plate (25) is arranged on the outside of the inner tube (21) and can abut against the inner wall of the adapter body (10). The outer cover (22) is provided with a moving rod (26). One end of the moving rod (26) extends into the inner tube (21) and is rotatably provided with a connecting rod (27). The end of the connecting rod (27) is rotatably connected to the other end of the push rod (23).

2. The optical fiber adapter according to claim 1, characterized in that: Push rods (23) are provided on two opposite side walls of the inner cylinder (21).

3. The optical fiber adapter according to claim 1, characterized in that: The moving rod (26) is slidably connected to the outer cover (22); a baffle (28) is fixedly provided at the other end of the moving rod (26); the baffle (28) is arranged on a side of the outer cover (22) away from the inner cylinder (21); when the baffle (28) abuts against the outer cover (22), the moving rod (26) is restricted from sliding along the outer cover (22).

4. The optical fiber adapter according to claim 3, characterized in that: The other end of the moving rod (26) is provided with a handle (29).

5. The optical fiber adapter according to claim 1, characterized in that: A through hole (30) is formed on the side wall of the inner cylinder (21), the push rod (23) slides along the through hole (30), one end of the push rod (23) is formed with a guide groove (31) along its axial direction, the top plate (25) is provided with a guide rod (32) that slidably cooperates with the guide groove (31), and the spring (24) is sleeved on the guide rod (32).

6. The optical fiber adapter according to claim 1, characterized in that: The side of the top plate (25) away from the inner cylinder (21) is provided with anti-slip grooves.

7. The optical fiber adapter according to claim 1, characterized in that: A plurality of compression strips (33) are provided on the outer wall of the inner cylinder (21). The compression strips (33) are provided along the length of the inner cylinder (21), and the thickness of the compression strips (33) gradually decreases from close to to far from the outer cover (22).

8. The optical fiber adapter according to claim 1, characterized in that: Connecting ear plates (12) are symmetrically provided on both sides of the adapter body (10), and threaded holes are provided on the connecting ear plates (12).

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