An otdr fiber extender box with fiber coupler storage

Abstract

The utility model relates to optical fiber test equipment technical field, concretely is a kind of OTDR optical fiber extension line box with optical fiber coupler storage bin, including lower box body, upper box body, inner lining, first winding shell, second winding shell, flexible ear stop, optical fiber coupler, solid shell, shell cover, cylinder, joint placement slot, card tube and fastener;The utility model structure is ingenious and simple, the utility model is placed four joint placement slots with model mark in storage box, built-in FC-FC, LC-LC, SC-SC, FC-SC four kinds of optical fiber couplers, user can flexibly select corresponding switching flange according to the interface demand of test environment, cooperate extension line use, need not to purchase multiple different interfaces extension line, significantly reduce cost;While hidden flange storage design does not influence normal use, greatly improve the adaptability and practicality of extension line under different working conditions, have popularization value.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber testing equipment technology, specifically to an OTDR optical fiber extension box with an optical fiber coupler storage compartment. Background Technology

[0002] In the field of optical fiber communication, OTDR fiber optic testing is a commonly used testing method. During OTDR fiber optic testing, fiber optic patch cords are needed to compensate for the OTDR's testing blind spots. However, existing OTDR fiber optic test extension cords are usually only equipped with one type of fiber optic coupler, which cannot meet the needs of different testing environments. The extension cords are stored in storage boxes. If the testing personnel need to purchase extension cords with different interfaces according to the specific working conditions, this not only increases the cost but also reduces the work efficiency. At the same time, it is also more troublesome to carry a lot of storage boxes during testing. Utility Model Content

[0003] The purpose of this invention is to provide an OTDR fiber optic extension box with a fiber optic coupler storage compartment to solve the aforementioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an OTDR fiber optic extension box with a fiber optic coupler storage compartment, comprising a lower box and an upper box, one side of the lower box being hinged to one side of the upper box, an inner liner plate being installed inside the upper box, a first winding shell and a second winding shell being fixedly installed on the top of the inner liner plate, the second winding shell comprising a solid shell and a shell cover, the shell cover being hinged to the top of the solid shell, the solid shell having multiple connector placement slots, the fiber optic couplers being placed in the connector placement slots, two flexible lugs being provided on one side of both the first winding shell and the solid shell, the cross-section of the first winding shell and the second winding shell being semi-circular in the top view direction.

[0005] Preferably, a column is vertically fixed to the top surface of the solid shell, a protrusion is provided on the outer wall of the column, a retaining sleeve is provided on the bottom surface of the shell cover, the retaining sleeve is a cylindrical structure, a groove adapted to the protrusion of the column is provided on the inner wall of the retaining sleeve, a magnetic absorbing piece is fixedly installed on the top surface of the column, and an iron piece is fixedly installed on the top of the retaining sleeve. When the shell cover is closed on the top of the solid shell, the protrusion on the outer wall of the column is locked in the groove of the retaining sleeve, and the magnetic absorbing piece on the top of the column is magnetically connected to the iron piece inside the retaining sleeve.

[0006] Preferably, the bottom of the connector placement slot is provided with an optical fiber coupler model identifier.

[0007] Preferably, a fastener is provided on one side of the upper box body, and a buckle adapted to the fastener is provided on one side of the lower box body.

[0008] Preferably, the outer walls of the side panels at both ends of the lower box are provided with hook fastening parts.

[0009] Preferably, there are four connector placement slots, and the bottom of the four connector placement slots are marked as FC-FC, LC-LC, SC-SC and FC-SC, respectively.

[0010] Preferably, the lower box and the upper box are hinged together by two hinges, which are respectively located near the two ends of the lower box and the upper box to ensure stable opening and closing of the box.

[0011] Preferably, the flexible lug is a metal sheet that can be bent up and down. After being pressed down and bent, it can fix the extension wire wrapped on the winding shell and prevent it from falling off.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model features a clever and simple structure. By incorporating four connector slots with model markings inside the storage box, it houses four types of fiber optic couplers: FC-FC, LC-LC, SC-SC, and FC-SC. Users can flexibly select the corresponding fiber optic coupler according to the interface requirements of the testing environment, and use it with an extension cable without the need to purchase multiple extension cables with different interfaces, significantly reducing costs. At the same time, the concealed flange storage design does not affect normal use, greatly improving the adaptability and practicality of the extension cable under different working conditions, making it worthy of widespread application. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the lower and upper boxes of this utility model after they are opened;

[0015] Figure 2 This is a three-dimensional structural diagram of the second winding shell of this utility model when no fiber optic coupler is placed there;

[0016] Figure 3 This is a three-dimensional structural diagram of the second winding shell of this utility model when the fiber optic coupler is placed;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the lower and upper boxes of this utility model after they are closed.

[0018] In the figure: 1. Lower box; 2. Upper box; 3. Inner liner; 4. First winding shell; 5. Second winding shell; 6. Flexible lug; 7. Fiber optic coupler; 51. Solid shell; 52. Shell cover; 511. Column; 512. Coupler placement slot; 521. Clip; 8. Fastener. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: an OTDR fiber optic extension box with a fiber optic coupler storage compartment, comprising a lower box body 1 and an upper box body 2. One side of the lower box body 1 is hinged to one side of the upper box body 2. An inner liner plate 3 is installed inside the upper box body 2. A first winding shell 4 and a second winding shell 5 are fixedly installed on the top of the inner liner plate 3. The cross-section of the first winding shell 4 and the second winding shell 5 is semi-circular in top view, forming a racetrack shape for winding. Two flexible lugs 6 are provided on one side of both the first winding shell 4 and the second winding shell 5. When the flexible lugs 6 are pressed down, they are used to fix the winding.

[0021] Furthermore, the second winding housing 5 includes a solid housing 51 and a cover 52, with the cover 52 hinged to the top of the solid housing 51. The solid housing 51 has four connector placement slots 512, labeled FC-FC, LC-LC, SC-SC, and FC-SC at the bottom, for placing different types of fiber optic couplers 7. A column 511 is vertically fixed to the top surface of the solid housing 51, with protrusions on its outer wall. A retaining sleeve 521 is located on the bottom surface of the cover 52. The retaining sleeve 521 has a cylindrical structure, and its inner wall has grooves that fit the protrusions on the column 511. A magnetic plate is fixedly installed on the top surface of the column 511, and an iron plate is fixedly installed on the top of the cylinder 521. When the cover 52 is closed on the top of the solid shell 51, the protrusion on the outer wall of the column 511 is stuck in the groove of the cylinder 521, and the magnetic plate on the top of the column 511 is magnetically connected to the iron plate inside the cylinder 521, which can effectively fix the cover 52.

[0022] Furthermore, a fastener 8 is provided on one side of the upper box 2, and a buckle adapted to the fastener 8 is provided on one side of the lower box 1. Hook fastening parts are provided on the outer walls of the side plates at both ends of the lower box 1 for hooking onto the device and then hanging on the body. The fastener 8 is a snap-on or magnetic snap-on fastener, which can easily fasten the upper box 2 and the lower box 1 together.

[0023] When using this utility model, users can select different models of fiber optic couplers 7 as needed. When different interfaces need to be adapted, open the cover 52 of the second winding shell 5, take out the fiber optic coupler 7 from the corresponding connector placement slot 512 according to the test interface type, and connect it to the extension cable and test interface. After use, put the fiber optic coupler 7 back in its original position according to the model marking at the bottom of the connector placement slot 512, close the cover 52, and ensure that the protrusion-groove of the column 511 and the card sleeve 521 are precisely matched and magnetically attracted. Finally, close the upper box 2 and the lower box 1, and carry or store it through the hook fastener.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An OTDR fiber optic extension box with a fiber optic coupler storage compartment, comprising a lower box (1) and an upper box (2), wherein one side of the lower box (1) is hinged to one side of the upper box (2), and an inner liner (3) is installed inside the upper box (2), characterized in that: The inner lining plate (3) is fixedly installed with a first winding shell (4) and a second winding shell (5). The second winding shell (5) includes a solid shell (51) and a shell cover (52). The shell cover (52) is hinged to the top of the solid shell (51). The solid shell (51) has multiple connector placement slots (512). An optical fiber coupler (7) is placed in the connector placement slot (512). Two flexible lugs (6) are provided on one side of both the first winding shell (4) and the solid shell (51).

2. The OTDR fiber optic extension box with fiber optic coupler storage compartment according to claim 1, characterized in that: The first winding shell (4) and the second winding shell (5) have a semi-circular cross-section in the top view direction, and the first winding shell (4) and the second winding shell (5) are mirror images of each other.

3. The OTDR fiber optic extension box with fiber optic coupler storage compartment according to claim 1, characterized in that: The top surface of the solid shell (51) is vertically fixed to a column (511), the outer wall of the column (511) is provided with a protrusion, and the bottom surface of the shell cover (52) is provided with a retainer (521). The retainer (521) is a cylindrical structure, and the inner wall of the retainer (521) is provided with a groove that matches the protrusion of the column (511).

4. The OTDR fiber optic extension box with fiber optic coupler storage compartment according to claim 3, characterized in that: A magnetic plate is fixedly installed on the top surface of the column (511), and an iron plate is fixedly installed on the top of the cartridge (521). When the cover (52) is closed on the top of the solid shell (51), the protrusion on the outer wall of the column (511) is stuck in the groove of the cartridge (521), and the magnetic plate on the top of the column (511) is magnetically connected to the iron plate inside the cartridge (521).

5. The OTDR fiber optic extension box with fiber optic coupler storage compartment according to claim 1, characterized in that: The bottom of the connector placement slot (512) is provided with an optical fiber coupler model identifier. There are four connector placement slots (512), and the bottom of the four connector placement slots (512) are identified as FC-FC, LC-LC, SC-SC and FC-SC respectively.

6. The OTDR fiber optic extension box with fiber optic coupler storage compartment according to claim 1, characterized in that: The upper box (2) is provided with a fastener (8) on one side, and the lower box (1) is provided with a buckle that is compatible with the fastener (8) on one side.

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