FC negative and positive attenuator

Abstract

The utility model provides an FC yin-yang attenuator. The FC yin-yang attenuator comprises a ceramic ferrule, a spring, a ceramic sleeve, a front sleeve and a rear sleeve. The ceramic ferrule is movably arranged in the front sleeve; the front sleeve is in threaded connection with the rear sleeve; one end, close to the rear sleeve, of the ceramic ferrule penetrates through the spring and extends out for a preset distance; and the ceramic sleeve is sleeved on the spring and is connected with one end of the ceramic ferrule, which is provided with the spring, in a buckling manner. The problem of unstable data transmission is effectively solved, the ceramic ferrule and the ceramic sleeve are arranged, the ceramic ferrule is protected through the front sleeve and the rear sleeve, connection is more stable, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fibers, in particular to an FC male-female attenuator. Background Art

[0002] Fiber optic attenuator is an optical device that reduces the energy of optical signals. It is used to attenuate the input optical power, thus avoiding distortion caused by excessive input optical power in the optical receiver.

[0003] At present, most of the attenuators on the market are LC male and female attenuators, and their tail handles adopt a hexagonal plus bevel design, and the front cover also adopts such a design. The two cooperate with each other to limit the position of the tail handle.

[0004] However, the hexagonal plus bevel design is difficult to process and the precision is difficult to control. The bevel is also unstable during the grinding process, which makes the tail handle positioning inaccurate, and thus affects the stability of the transmitted data. Utility Model Content

[0005] In view of the above problems, the present invention is proposed to provide an FC male-female attenuator that overcomes the above problems or at least partially solves the above problems.

[0006] In order to solve the above problems, the utility model discloses an FC male-female attenuator, comprising: a ceramic ferrule, a spring, a ceramic sleeve, a front sleeve and a rear sleeve; the ceramic ferrule is movably arranged in the front sleeve; the front sleeve and the rear sleeve are threadedly connected; the end of the ceramic ferrule close to the rear sleeve passes through the spring and extends a preset distance; the ceramic sleeve is mounted on the spring and is snap-connected to the end of the ceramic ferrule where the spring is located.

[0007] Furthermore, the FC male-female attenuator also includes a connecting sleeve; the connecting sleeve for stable connection is provided on the front sleeve and the rear sleeve.

[0008] Furthermore, a thread for connection is provided on the inner wall of the connecting sleeve near the ceramic ferrule.

[0009] Furthermore, the FC male-female attenuator further includes a dust cover; the dust cover is embedded in one end of the ceramic ferrule close to the front cover.

[0010] Furthermore, the FC male-female attenuator further includes a dust cap; the dust cap is threadedly connected to one end of the rear sleeve close to the ceramic sleeve.

[0011] Furthermore, an open groove is formed on the side wall of the ceramic sleeve along the length direction, and the open groove runs through both ends of the ceramic sleeve.

[0012] The utility model has the following advantages:

[0013] By setting up a threaded connection between the front sleeve and the rear sleeve to protect the ceramic ferrule arranged inside, the connection is more stable and the service life is longer. The connecting sleeve is further provided to fix the ferrule when connected, further making the connection more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded view of an embodiment of an FC male-female attenuator of the present invention;

[0015] Figure 2 It is a structural schematic diagram of an embodiment of an FC male-female attenuator of the present invention.

[0016] In the figure: 1. Ceramic ferrule; 2. Spring; 3. Ceramic sleeve; 4. Front sleeve; 5. Rear sleeve; 6. Connecting sleeve; 7. Dust sleeve; 8. Dust cap. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Reference Figure 1, shows a schematic structural diagram of an FC yin-yang attenuator of the present invention, which may specifically include: a ceramic ferrule 1, a spring 2, a ceramic sleeve 3, a front sleeve 4 and a rear sleeve 5; the ceramic ferrule 1 is movably arranged in the front sleeve 4; the front sleeve 4 and the rear sleeve 5 are threadedly connected; the end of the ceramic ferrule 1 close to the rear sleeve 5 passes through the spring 2 and extends a preset distance; the ceramic sleeve 3 is sleeved on the spring 2 and is snap-connected to the end of the ceramic ferrule 1 where the spring 2 is arranged. It should be noted that one end of the ceramic ferrule 1 passes through and connects to the ceramic sleeve 3, and this end of the ceramic ferrule 1 is also sleeved with the spring 2. In the presence of the spring 2, the ceramic ferrule 1 is tightly connected to the ceramic sleeve. The front sleeve 4 and the rear sleeve 5 are both provided with a central through hole. When the front sleeve 4 and the rear sleeve 5 are connected, the two central through holes are located on the same axis. Preferably, a snap-fit ​​structure is provided in the front sleeve 4, and the front sleeve 4 and the rear sleeve 5 are threadedly connected to form a composite body. When the ceramic ferrule 1 is provided in the composite body formed by the connection of the front sleeve 4 and the rear sleeve 5, one end of the ceramic ferrule 1 is restricted to be able to move only within the composite body. Furthermore, the bayonet structure is configured to provide holes at both ends of the composite body with an inner diameter smaller than the inner diameter of either end of the ceramic ferrule 1, that is, in addition to the central through hole, the non-connecting end of the front sleeve 4 is also provided with a first hole smaller than the inner diameter of either end of the ceramic ferrule 1. Similarly, in addition to the central through hole, the non-connecting end of the rear sleeve 5 is also provided with a second hole smaller than the inner diameter of either end of the ceramic ferrule 1. It should be supplemented that the inner diameter of the central through hole is larger than the diameter of either end of the ceramic ferrule 1, and the inner diameter of the central through hole is larger than the inner diameter of the first hole and the inner diameter of the second hole. The front sleeve 4 and the rear sleeve 5 are used to protect the ceramic ferrule 1.

[0019] Furthermore, the FC male-female attenuator also includes a connecting sleeve 6, which is used to secure the connection of one end of the ceramic ferrule and is mounted on the front sleeve 4 and the rear sleeve 5. It should be noted that the connecting sleeve 6 is movably mounted outside the front sleeve 4 and the rear sleeve 5. The inner wall of the connecting sleeve 6 near the ceramic ferrule 1 is provided with threads, which are connected to the threaded connection. This ensures a stable connection of the end of the ceramic ferrule 1 near the front sleeve 4 and prevents it from being easily disconnected. Furthermore, the connecting sleeve 6 is provided with an anti-slip groove to increase friction and facilitate twisting.

[0020] Furthermore, the FC male-female attenuator further includes a dust cover 7; the dust cover 7 is embedded in one end of the ceramic ferrule 1 close to the front cover 4; the FC male-female attenuator further includes a dust cap 8;

[0021] The dust cap thread 7 is connected to one end of the rear sleeve 5 close to the ceramic sleeve 3. It should be noted that the dust sleeve 7 and the dust cap 8 are used to protect the ceramic ferrule 1 and the ceramic sleeve 3 from physical damage and to isolate dust from entering.

[0022] Furthermore, an opening groove is provided on the side wall of the ceramic sleeve 3 along the length direction. The opening groove runs through both ends of the ceramic sleeve 3 . The setting of the opening groove enables the ceramic sleeve 3 to have a certain elasticity, which facilitates the insertion of the ceramic ferrule 1 .

[0023] Furthermore, it is more preferred that the ceramic ferrule 1 is made of alumina, which has the advantages of good electrical insulation performance, high mechanical strength, wear resistance and relatively low cost.

[0024] Furthermore, the length of both ends of the ceramic ferrule 1 is 6.5 mm and the diameter is 1.23 mm.

[0025] Furthermore, the length of the ceramic sleeve 3 is 6.75 mm and the diameter is 1.65 mm.

[0026] Working principle: One end of the ceramic ferrule 1 is passed through the front sleeve 4, and the other end is passed through the rear sleeve 5. Then, the front sleeve 4 and the rear sleeve 5 are threaded together to complete the fixation. Then, the ceramic sleeve 3 is inserted into the end of the ceramic ferrule 1 close to the rear sleeve 5. After the assembly is completed, the dust cover 7 and the dust cap 8 are respectively sleeved on the front sleeve 4 and the rear sleeve 5. When two attenuators need to be assembled together, the rear dust cover 7 and the dust cap 8 are pulled out, and the front sleeve 4 of the other attenuator is inserted into the rear sleeve 5 of the previous attenuator. The ceramic ferrule 1 exposed in the front sleeve 4 of the other attenuator is inserted into the ceramic sleeve 3 of the previous attenuator to complete the assembly of the two attenuators.

[0027] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0028] The above is a detailed introduction to the FC male-female attenuator provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. At the same time, for those skilled in the art, based on the concept of the present invention, there may be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. An FC male-female attenuator, characterized in that: include: Ceramic ferrule, spring, ceramic sleeve, front sleeve and back sleeve; The ceramic ferrule is movably arranged in the front sleeve; The front sleeve and the rear sleeve are threadedly connected; One end of the ceramic ferrule close to the rear sleeve passes through the spring and extends out a preset distance; The ceramic sleeve is sleeved on the spring and is snap-connected with one end of the spring provided on the ceramic ferrule.

2. The FC male-female attenuator according to claim 1, characterized in that: The FC male-female attenuator further includes a connecting sleeve; The connecting sleeve for stable connection is provided on the front sleeve and the rear sleeve.

3. The FC male-female attenuator according to claim 2, characterized in that: The inner wall of the connecting sleeve is provided with a thread for connection near the ceramic ferrule.

4. The FC male-female attenuator according to claim 1, characterized in that: The FC male-female attenuator further includes a dust cover; The dustproof sleeve is embedded in one end of the ceramic ferrule close to the front sleeve.

5. The FC male-female attenuator according to claim 1, characterized in that: The FC male-female attenuator further includes a dust cap; The dust cap is threadedly connected to one end of the rear sleeve close to the ceramic sleeve.

6. The FC male-female attenuator according to claim 1, characterized in that: An open groove is formed on the side wall of the ceramic sleeve along the length direction, and the open groove runs through both ends of the ceramic sleeve.

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