1. The utility model provides a logical light discernment dust cap which characterized in that: the optical fiber connector comprises a dustproof cap mounting part (1), wherein a pin connecting part (2) connected with an optical fiber pin (4) is formed on one side of the dustproof cap mounting part (1), and a laser pen connecting part (3) connected with a laser pen (8) is formed on the other side of the dustproof cap mounting part; the laser pen connecting structure is characterized in that a pin inserting hole (20) which does not penetrate through a blind hole is formed in the pin inserting connecting portion (2), and at least one of the inner hole bottom surface (21) of the pin inserting hole (20) and the outer side surface (31) of the laser pen connecting portion (3) is provided with a certain radian.

2. A light-transmitting identification dust cap according to claim 1, characterized in that: the outer side surface (31) is arranged inwards in the surface of the laser pen connecting part (3).

3. A light-transmitting identification dust cap according to claim 2, characterized in that: the central axis of contact pin connecting portion (2) the central axis of dustproof cap installation department (1) reaches the central axis of laser pen connecting portion (3) all is located same straight line.

4. A light-transmitting identification dust cap according to claim 3, characterized in that: the pin insertion hole (20) is one of circular or oval.

5. The light-transmitting identification dust cap according to claim 4, characterized in that: the laser pen connecting part (3) is of a protruding structure and is used for being inserted into the laser pen (8).

6. A light-transmitting identification dust cap according to claim 5, characterized in that: dustproof cap installation department (1) contact pin connecting portion (2) reach laser pen connecting portion (3) all are cylindric setting.

7. A light-transmitting identification dust cap according to claim 6, characterized in that: dustproof cap installation department (1) contact pin connecting portion (2) reach laser pen connecting portion (3) integrated into one piece sets up.

8. A light-transmitting identification dust cap according to claim 7, characterized in that: the dust cap is made of transparent material.

Background

In the optical fiber system, except for optical transmission equipment and optical devices, optical fiber consumables are also an indispensable part, and optical device dust caps, optical fiber sleeves/envelopes, optical fiber fusion welding protective sleeves, optical fiber cleaning consumable tool kits and the like all belong to optical fiber consumables. These consumables are widely used in fiber optic systems to protect the optical fibers and the fiber end faces. In all consumables, the optical device dust cap is applied to almost every corner of the optical fiber system, and therefore, its effect cannot be small.

The dust cap plays an important role in an optical fiber system, and can protect optical fiber connectors, optical fiber adapters, optical interfaces of optical modules and ports of other equipment from external environmental pollution and external force damage, so that the network is prevented from being seriously decelerated or network faults occur. In general, a dust cap should be used over any fiber optic splice or optical interface that is not commonly used.

As shown in fig. 6, in the prior art in the field of optical fiber communication, when a connector is installed, a connector dust cap is usually pulled out, then a red laser pen is used to polish the connector, and the accuracy of the corresponding relationship of the optical paths is determined by observing whether the other end connector emits light. For example, the dust cap product disclosed in patent No. US20030002812a1, when it is constructed and wired, needs to pull out the existing dust cap a', then connect the adapter 6, the switching optical patch cord 7, the laser pen 8, judge the correctness of the light path relation by observing whether the tested optical patch cord connector 9 at the other end of the switching optical patch cord 7 emits red light, the connector dust cap of the above-mentioned manner is in application, the operation steps are numerous, and the end face of the optical fiber connector is easily damaged to cause poor performance, and the requirement for the constructor is high; secondly, when observing logical light connector, there is the security risk of accidental injury human eyes through the laser that the connector sent, there are more drawbacks, be unfavorable for above-mentioned dustproof cap in the popularization and application of fiber communication technical field.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the light-transmitting identification dustproof cap which is simple and ingenious in structure, convenient to use, high in economical practicability, capable of reducing the identification difficulty of constructors, convenient to operate, capable of reducing the damage risk of laser to a human body, capable of guaranteeing the service life of an adapter, low in use cost and beneficial to popularization and application of the light-transmitting identification dustproof cap in the technical field of optical fiber communication.

In order to achieve the purpose, the invention adopts the following technical scheme that the light-transmitting identification dustproof cap comprises a dustproof cap mounting part, wherein one side of the dustproof cap mounting part is provided with a pin connecting part connected with an optical fiber pin, and the other side of the dustproof cap mounting part is provided with a laser pen connecting part connected with a laser pen; and a pin hole which does not penetrate through the blind hole is formed in the pin connecting part, and at least one of the bottom surface of the inner hole of the pin hole and the outer side surface of the laser pen connecting part is provided with a certain radian.

As a preferable scheme of the present invention, the outer side surface is recessed in a surface of the laser pointer connecting portion.

As a preferred scheme of the present invention, the central axis of the pin connecting portion, the central axis of the dust cap mounting portion, and the central axis of the laser pen connecting portion are all located on the same straight line.

As a preferable aspect of the present invention, the pin hole is one of a circular shape and an elliptical shape.

As a preferable scheme of the present invention, the laser pen connecting portion is a protrusion structure for being inserted into the laser pen.

As a preferred embodiment of the present invention, the dust cap mounting portion, the pin connecting portion, and the laser pen connecting portion are all disposed in a cylindrical shape.

As a preferable embodiment of the present invention, the dust cap mounting part, the pin connecting part, and the laser pen connecting part are integrally formed.

As a preferable aspect of the present invention, the dust cap is made of a transparent material.

Compared with the prior art, the invention has the following beneficial effects: the light-transmitting identification dustproof cap is simple and ingenious in structure, at least one surface of the inner hole bottom surface of the pin inserting hole and the outer side surface of the laser pen connecting portion is provided with a certain radian, so that the dustproof cap plays a role of a lens and can converge or diverge light beams, the accuracy of the corresponding relation of light paths can be judged without disassembling the dustproof cap in the using process, the use is convenient, the economical and practical performance is high, meanwhile, the identification difficulty of constructors can be reduced, the operation is convenient, the damage risk of laser to a human body can be reduced, the service life of an adapter is ensured, the use cost is reduced, and the popularization and the application of the light-transmitting identification dustproof cap in the technical field of optical fiber communication are facilitated.

Drawings

FIG. 1 is a schematic structural view of a light-transmitting identification dust cap in embodiment 1;

FIG. 2 is a sectional view showing the structure of a light-transmitting identification dust cap in embodiment 1;

FIG. 3 is a schematic view showing the installation of a light-transmitting identification dust cap and a connector in embodiment 1;

fig. 4 a is a schematic view of an application of the light-transmitting identification dust cap in embodiment 1;

FIG. 5 is a schematic structural view of a light-transmitting identification dust cap in embodiment 2;

fig. 6 a' is a schematic diagram of the application of the dust cap in the prior art.

Reference numerals: 1. a dust cap mounting portion; 2. a pin connecting part; 20. a pin inserting hole; 21. the bottom surface of the inner hole; 3. a laser pen connection part; 31. an outer side surface; 4. inserting an optical fiber pin; 5. a connector; 6. an adapter; 7. switching the optical patch cord; 8. a laser pen; 9. a measured light jumper connector; a', existing dust caps.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

Example 1: as shown in fig. 1 to 4, a lead to light discernment dust cap, including the dust cap installation department 1 of the operating personnel operation of being convenient for, above-mentioned dust cap installation department 1 one side is formed with the contact pin connecting portion 2 of being connected with optic fibre contact pin 4, the opposite side is formed with the laser pen connecting portion 3 of being connected with laser pen 8, the inside contact pin hole 20 that does not run through the blind hole that forms of above-mentioned contact pin connecting portion 2, contact pin hole 20 is one kind in circular or oval or other shapes, in order to avoid optic fibre contact pin 4 at contact pin hole 20 internal rotation, influence result of use, can all set contact pin hole 20 and optic fibre contact pin 4 into the polygon, during the use, optic fibre contact pin 4 is directly pegged graft in contact pin hole 20, be about to the dust cap suit at optic fibre contact pin 4 peripherally, realize being connected of dust cap and optic fibre contact pin 4, guarantee the result of use simultaneously. The laser pen connecting part 3 is a protrusion with a certain length and is used for being inserted into the laser pen 8 to realize connection with the laser pen 8.

At least one of the inner hole bottom surface 21 of the pin hole 20 and the axial outer side surface, i.e. the outer side surface 31 of the laser pen connecting part 3, is provided with a certain radian, so that the dust cap functions as a lens and can converge or diverge light beams. When the connector is used, on the red laser pen 8 side, the divergent light beams emitted by the laser pen 8 are acted by the lens of the light-transmitting dustproof cap in the embodiment to enable the light rays to be converged on the optical fiber of the central shaft of the connector 5 as far as possible, so that the coupling energy loss is reduced, and the effect of longer transmission distance can be achieved; at the observation end, the light that 5 center pin optic fibres of connector sent produces the effect of dispersing behind logical light dust cap, reduces the laser energy on the unit area, reduces the damage to eyes when observing.

In order to reduce the manufacturing difficulty and further reduce the manufacturing cost, the outer surface 31 may be recessed in the surface of the laser pointer connecting portion 3.

In order to further reduce the coupling energy loss and further achieve the effect of longer propagation distance, the central axis of the pin connecting portion 2, the central axis of the dust cap mounting portion 1, and the central axis of the laser pen connecting portion 3 are all located on the same straight line.

Above-mentioned dust cap installation department 1 in this embodiment, above-mentioned contact pin connecting portion 2 and above-mentioned laser pen connecting portion 3 all are cylindric setting, and the small and exquisite compactness of structure is convenient for operate, the preparation of being convenient for simultaneously.

In order to guarantee the structural strength and the service life of the dust cap and reduce the use cost, the dust cap mounting part 1, the pin connecting part 2 and the laser pen connecting part 3 are integrally formed.

In order to further ensure the accuracy of judging the corresponding relation of the light path, the dust cap can be made of transparent or semitransparent materials.

The light-transmitting identification dustproof cap in the embodiment has a simple and ingenious structure, at least one of the inner hole bottom surface 21 of the pin hole 20 and the outer side surface 31 of the laser pen connecting part 3 is provided with a certain radian, so that the dustproof cap has the function of a lens and can converge or diverge light beams, the accuracy of the corresponding relation of light paths can be judged without disassembling the dustproof cap in the using process, the light-transmitting test is carried out, the construction difficulty is reduced, the operation steps are reduced, and meanwhile, the risk of damage to the end surface of the optical fiber connector is reduced; the light energy density of the light-emitting side during observation is reduced, the risk of damaging human eyes is reduced, and the safety is improved; the optical fiber adapter and the adapter jumper are not required to be arranged during wiring, so that the cost is saved, the loss of natural resources is reduced, and the popularization and the application of the light-transmitting identification dustproof cap in the technical field of optical fiber communication are facilitated.

Example 2: as shown in fig. 5, the present embodiment is distinguished from embodiment 1 in that: the shape of logical light discernment dust cap in this embodiment is the rectangle, and it is applied to rectangular connector in, with rectangular connector looks adaptation, and it plays the effect of lens equally, can assemble or diverge the light beam, need not dismantle the accuracy that dust cap can judge the light path corresponding relation in the use, leads to the light test, is favorable to the above-mentioned popularization and application of leading to light discernment dust cap in optical fiber communication technical field.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more here: 1. a dust cap mounting portion; 2. a pin connecting part; 20. a pin inserting hole; 21. the bottom surface of the inner hole; 3. a laser pen connection part; 31. an outer side surface; 4. inserting an optical fiber pin; 5. a connector; 6. an adapter; 7. switching the optical patch cord; 8. a laser pen; 9. a measured light jumper connector; a', existing dust caps, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.