CN214174680U - Connecting device for ST-type adaptive plastic optical fibers - Google Patents

Abstract

The utility model belongs to the technical field of the fiber connector product and specifically relates to a connecting device of ST type adaptation plastic optical fiber is related to, include, casing, plastic optical fiber contact, ceramic sleeve and axle sleeve, the casing in processing have the mounting hole, the utility model discloses a plastic optical fiber connecting device can be applicable to and carry out adaptation erection joint with the optic fibre of different grade type, very big improvement plastic optical fiber connecting device's use adaptation scope, satisfied people's user demand.

Description

Connecting device for ST-type adaptive plastic optical fibers

Technical Field

The utility model belongs to the technical field of the fiber connector product and specifically relates to a connecting device of ST type adaptation plastic optical fiber is related to.

Background

Due to the large diameter and numerical aperture of the plastic optical fiber, the light transmission capability is large. Plastic optical fibers have a much higher bandwidth capability than copper-based transmission media (twisted pair and coaxial cable). The higher the frequency of transmission, the lower the cost of using plastic optical fiber. Cutting, routing, bonding, polishing, and other processing of plastic optical fibers is easy. Due to the large diameter, plastic optical fiber installation and connection to devices, light sources, detectors, etc. becomes easy and inexpensive, and a layman can be competent for these operations. The preparation of the plastic optical fiber for connection does not exceed 1 minute at most, and no special tool is required. Even the simplest scissors can be used to cut the plastic optical fiber. The plastic optical fiber transceiver module uses 650nm red light, so that the plastic optical fiber transceiver module is very safe, and a user can see the plastic optical fiber transceiver module and can easily judge whether the connection of the optical fiber is successful. In addition, the connection of the plastic optical fiber is not sensitive to dust and debris trapped in the end face. The plastic optical fiber does not generate radiation and is completely free from electromagnetic interference, radio frequency interference and noise. This is particularly important for video and audio streaming, and it is clear that these disturbances and noise affect the quality of the image and service. The plastic optical fiber and the copper cable can be laid in the same pipeline or in the same wiring harness side by side. The plastic optical fiber does not generate noise and can not generate negative influence on the current pipe network. Compared with quartz optical fiber, POF has the following advantages: the modulus is low, the core diameter is large (0.3-1.0mm), a simple POF connector can be used during connection, and even if the optical fiber connection center is aligned to generate 30 mu m deviation, the coupling loss can not be influenced; the numerical aperture is large (about NA 0.5), the light receiving angle can reach 60 degrees, the quartz optical fiber is only 16 degrees, cheap LEDs can be used, and the coupling efficiency is high; the flexibility is good, and the processing and the use are easy; a low-loss window is arranged in a visible light area; the weight is light; the cost and the processing expense are low. POF networks also have significant advantages over other transmission media in lan systems: the POF is not sensitive to electromagnetic interference and does not radiate, the attenuation under different data rates is constant, the error rate is predictable, and the POF can be used in an electrical noise environment; the longer size of the device can reduce the requirement of tolerance control in the joint design, so the cost of the net formation is lower, and the like.

Plastic Optical Fiber (POF) is produced and used in large quantities in China since 2005, and is widely used in the fields of communication, Optical Fiber sensors, industrial control jumpers and the like, because the Plastic Optical Fiber is required to be butted with other Optical fibers (such as quartz Optical Fiber) when in use, such Optical Fiber connectors which are adapted are fresh in the market, the popularization and use of the Plastic Optical Fiber connectors are greatly reduced and limited, and therefore a Plastic Optical Fiber connector which can be adapted to be butted with other different Optical fibers is urgently needed in the market.

Disclosure of Invention

The utility model aims at providing a connecting device of ST type adaptation plastic optical fiber, it can realize carrying out adaptation erection joint with the optic fibre of different grade type, has satisfied people's user demand.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a ST-type connecting device adaptive to plastic optical fiber comprises a shell, a plastic optical fiber contact element, a ceramic sleeve and a shaft sleeve, a mounting hole is processed in the shell, a first limit step and a second limit step are processed in the mounting hole, the ceramic bushing is arranged in a mounting hole processed in the shell, the right end of the ceramic bushing props against a second limit step in the mounting hole, the ceramic sleeve is internally provided with a through hole, the contact end of the plastic optical fiber contact element is arranged in the through hole arranged in the ceramic sleeve and is connected with the through hole, the shaft sleeve is arranged at the mounting hole part in the shell and tightly presses the ceramic sleeve and the plastic optical fiber contact piece in the mounting hole, and a connecting hole which is connected with an external connector in an installing way is processed on the right side in the shell and is communicated with an installing hole processed in the shell.

The plastic optical fiber contact part consists of a plastic optical fiber and a plastic optical fiber contact pin, an optical fiber installation through hole is formed in the plastic optical fiber contact pin, and the plastic optical fiber is installed in the optical fiber installation through hole and connected with the optical fiber installation through hole.

And the outer part of the shell is provided with a mounting step.

And an installation guide groove is processed on the left side outside the shell.

The guide post is arranged on the outer portion of the shell and fixedly connected with the shell.

The guide posts are symmetrically and fixedly arranged on the outer part of the shell.

The optical fiber connector is characterized in that an optical fiber contact element mounting through hole is formed in the shaft sleeve, and a conical guide part is machined on the end part of the inner side of the shaft sleeve.

The optical fiber contact mounting through hole, the optical fiber mounting through hole, the through hole and the mounting hole are coaxially mounted.

The utility model has the advantages that: the utility model discloses overall structure designs the science, and production and processing technology is simple and convenient, the utility model discloses mainly through the common design installation department of parts such as casing, plastics optical fiber contact, ceramic sleeve and axle sleeve, make the utility model discloses a plastics optical fiber connecting device can be applicable to and carry out adaptation erection joint with the optic fibre of different grade type, very big improvement plastics optical fiber connecting device's use adaptation scope, satisfied people's user demand.

Drawings

FIG. 1 is a schematic view of the overall installation structure of the present invention;

fig. 2 is a schematic view of the overall external structure of the present invention;

fig. 3 is a schematic structural diagram of the housing of the present invention;

FIG. 4 is a schematic structural diagram of a plastic optical fiber contact element according to the present invention;

fig. 5 is a schematic structural view of the shaft sleeve of the present invention;

fig. 6 is a schematic structural diagram of the ceramic bushing according to the present invention;

the reference numbers in the figures are: the optical fiber connector comprises a shell 1, a plastic optical fiber contact 2, a ceramic sleeve 3, a shaft sleeve 4, a first limiting step 5, a second limiting step 6, a connecting hole 7, an optical fiber contact mounting through hole 8, an optical fiber mounting through hole 9, a through hole 10, a mounting hole 11, a mounting guide groove 12, a mounting step 13, a conical guide part 14, a guide post 15, a conical guide part 16, a mounting step 17, a plastic optical fiber 18 and a plastic optical fiber pin 19.

Detailed Description

Specific example 1: the core of the utility model is to provide a connecting device of ST type adaptation plastic optical fiber, it mainly through the common design installation department of parts such as casing 1, plastic optical fiber contact 2, ceramic bushing 3 and axle sleeve 4, makes the utility model discloses a plastic optical fiber connecting device can be applicable to and carry out adaptation erection joint with the optic fibre of different grade type, very big improvement plastic optical fiber connecting device's use adaptation scope, for making the personnel in this technical field understand better the utility model discloses a technical scheme, it is right with concrete implementation mode to combine the description drawing below the utility model discloses do further detailed description, it needs to explain, when the component is called "being fixed in" or "set up in" another component, it can be directly or indirectly on another component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in this specification to denote orientation are used with reference to a particular structure shown in the drawings, and do not constitute a limitation on the structure. As shown in the attached figures 1-6 of the specification, an ST-type adaptive plastic optical fiber connecting device mainly comprises a shell 1, a plastic optical fiber contact element 2, a ceramic sleeve 3 and a shaft sleeve 4, wherein a mounting hole 11 for mounting the ceramic sleeve 3 is processed in the shell 1, a first limiting step 5 and a second limiting step 6 are processed in the mounting hole 11, the ceramic sleeve 3 is mounted in the mounting hole 11 processed in the shell 1, when the ceramic sleeve is mounted, the right side end part of the ceramic sleeve 3 abuts against the second limiting step 6 in the mounting hole 11 (the second limiting step 6 limits the right side end part of the ceramic sleeve 3), a through hole 10 for mounting the plastic optical fiber contact element 2 is formed in the ceramic sleeve 3, the contact end of the plastic optical fiber contact element 2 is mounted in the through hole 10 formed in the ceramic sleeve 3 and connected with the through hole 10, the shaft sleeve 4 for compressing the ceramic sleeve 3 is mounted in the mounting hole 11 in the shell 1 and the ceramic sleeve 3 and the plastic optical fiber contact element are mounted on the mounting hole 11 2 is pressed in the mounting hole 11, an optical fiber contact mounting through hole 8 for mounting the plastic optical fiber contact 2 is arranged in the shaft sleeve 4, the tail part of the plastic optical fiber contact 2 is arranged in the optical fiber contact mounting through hole 8 in a penetrating way, in order to make the mounting process of the shaft sleeve 4 more convenient, a conical guide part is processed on the inner side end part of the shaft sleeve 4, a connecting hole 7 for mounting and connecting with an external connector is processed on the right side in the shell 1, the connecting hole 7 is communicated with the mounting hole 11 processed in the shell 1, the plastic optical fiber contact 2 consists of a plastic optical fiber 18 and a plastic optical fiber pin 19, an optical fiber mounting through hole 9 is arranged in the plastic optical fiber pin 19, the plastic optical fiber 18 is arranged in the optical fiber mounting through hole 9 and is connected with the optical fiber mounting through hole 9, in order to facilitate the mounting and connecting with the external connector, a guide post 15 is arranged on the outer part of the shell 1 and a mounting guide groove 12 is arranged, wherein the guide posts 15 are symmetrically and fixedly mounted on the outside of the housing 1. It should be noted that, in order to guarantee the installation and use effect of the plastic optical fiber, the utility model provides an optical fiber contact mounting through hole 8, optical fiber mounting through hole 9, through hole 10, mounting hole 11 and connecting hole 7 set up for installing with the axle center. Specifically, the plastic optical fiber connection device of the utility model comprises a shell 1, a plastic optical fiber contact element 2, a ceramic sleeve 3 and a shaft sleeve 4, wherein the head of the shell 1 is a standard ST type adapter interface (left part of the shell) and is butted with an ST connector, the design of the tail step (mounting step 17) and the circumferential groove (mounting guide groove 12) of the shell 1 is convenient for mounting the plastic optical fiber sensor and the connection device, the ceramic sleeve 3 is arranged in a mounting hole 11 in the shell 1, the plastic optical fiber contact element 2 is arranged in the ceramic sleeve 3, the shaft sleeve 4 fixes the two parts in the shell 1, the plastic optical fiber contact element 2 comprises a plastic optical fiber and a plastic optical fiber contact pin, in the utility model, the plastic optical fiber in the plastic optical fiber sensor is inserted into the plastic optical fiber contact element for fixation, after an external sensor is fixedly mounted with the connection device of the utility model, and pass through again the utility model discloses the ST type adaptation interface of well standard docks with ST type connector, and the displacement when having reduced the butt joint has strengthened the reliability of connecting, has reduced the signal loss of plastics optical fiber sensor and ST connector junction. The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (8)

1. A connecting device of ST type adaptive plastic optical fiber is characterized by comprising a shell, a plastic optical fiber contact element, a ceramic sleeve and a shaft sleeve, a mounting hole is processed in the shell, a first limit step and a second limit step are processed in the mounting hole, the ceramic bushing is arranged in a mounting hole processed in the shell, the right end of the ceramic bushing props against a second limit step in the mounting hole, the ceramic sleeve is internally provided with a through hole, the contact end of the plastic optical fiber contact element is arranged in the through hole arranged in the ceramic sleeve and is connected with the through hole, the shaft sleeve is arranged at the mounting hole part in the shell and tightly presses the ceramic sleeve and the plastic optical fiber contact piece in the mounting hole, and a connecting hole which is connected with an external connector in an installing way is processed on the right side in the shell and is communicated with an installing hole processed in the shell.

2. The device as claimed in claim 1, wherein the plastic optical fiber contact member comprises a plastic optical fiber and a plastic optical fiber stub, the plastic optical fiber stub having an optical fiber installation through hole formed therein, the plastic optical fiber being installed in and connected to the optical fiber installation through hole.

3. An ST-type compatible plastic optical fiber connecting device as claimed in claim 1, wherein the housing is externally formed with a mounting step.

4. The apparatus of claim 1, wherein the housing is formed with a mounting guide groove on the left side thereof.

5. An ST-type compatible plastic optical fiber connecting device according to claim 1, wherein a guide post is installed on an outside of the housing, and the guide post is fixedly connected to the housing.

6. An ST-type compatible plastic optical fiber connecting device according to claim 1, wherein the guide posts are symmetrically fixedly installed on the outside of the housing.

7. The device according to claim 1, wherein the sleeve has a through hole for mounting the optical fiber contact member, and a tapered guide portion is formed at an inner end of the sleeve.

8. The apparatus of claim 1, wherein the optical fiber contact mounting through hole, the optical fiber mounting through hole, the through hole and the mounting hole are coaxially installed.

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