CN108107525A - Drawer type fibre distribution frame - Google Patents

Abstract

The invention discloses a drawer-type optical fiber distribution frame, mainly comprising: a casing (1), a distribution box (2) and an optical fiber (3), the distribution box is arranged inside the casing (1), and the optical fiber (3) is arranged in the In the distribution box (2), there is an optical fiber surplus outside the distribution box, and an active connector (4) configured to change the optical fiber surplus is also included. It can save time and effort to insert and insert the optical fiber distribution box, which not only avoids the breakage of the optical fiber when the traditional optical fiber distribution frame is forcibly pulled out of the distribution box, but also avoids possible gaps on the fiber jumper due to the narrow operating space Misalignment, wrong fiber jumper plugged into the wrong port, etc.

Description

Drawer Fiber Distribution Frame

technical field

The invention relates to the technical field of distribution frame design, in particular to a drawer-type optical fiber distribution frame.

Background technique

With the rapid development of the smart grid, the dependence on the optical communication network is also increasing. In the daily operation and maintenance of the optical communication network, a large number of fiber jumping operations need to be performed on the optical fiber distribution frame. In the power system, as shown in Figure 1, the optical fiber distribution frame is composed of a distribution frame shell 1, a distribution box 2 and a fiber jumper 3. The distribution frame shell and the cabinet are fixed by screws, and the distribution box is installed inside the shell. , the optical fiber is installed in the distribution box. The distribution box is protected by the shell, so that the distribution box and the optical fiber are prevented from being disturbed by external forces, resulting in the interruption of the optical fiber.

The optical fiber distribution box of the traditional distribution frame is usually installed in the housing in a drawer-like manner. When the optical fiber distribution box needs to be operated, the optical fiber distribution box can be operated by pulling it out of the housing. However, in actual work, the optical cable at the back of the optical fiber distribution box often does not have enough margin during installation, resulting in the failure of the optical fiber distribution box to be pulled out smoothly. If the optical fiber distribution box is forcibly pulled out, the entire optical cable may be completely interrupted. This also allows the operation and maintenance personnel to only operate the fiber optic distribution box in a narrow enclosure. Due to the narrow operating space, it will also affect the operation accuracy of the operation and maintenance personnel. There may be phenomena such as misalignment of the gaps on the fiber jumper and wrong port insertion of the fiber jumper, which also cause certain hidden dangers to the safe operation of the optical communication system.

Contents of the invention

The object of the present invention is to propose a drawer-type optical fiber distribution frame to overcome the defects in the prior art in view of the above problems.

In order to achieve the above purpose, the technical solution adopted by the present invention is: a drawer-type optical fiber distribution frame, which mainly includes:

Housing (1), distribution box (2) and optical fiber (3), the distribution box is arranged inside the housing (1), the optical fiber (3) is arranged in the distribution box (2), and there is an optical fiber margin outside the distribution box , further comprising an active connector (4) configured to change the fiber margin.

Further, the movable connector (4) includes a fixed first cylinder (5), a fixed second cylinder (6) and a movable third cylinder (7), the first cylinder The body (5) and the second cylinder (6) are connected by a first connecting rod (8), and the first cylinder (5) and the second cylinder (7) are connected by a second connecting rod (9). ) is connected, the second cylinder (7) can be rotated with the second connecting rod (9) as the radius around the first cylinder (5), and the first connecting rod (8) and the second connecting rod (9) are driven by a spring (10) CONNECTIONS.

Further, line cards are provided on the outer surfaces of the first cylinder (5), the second cylinder (6) and the third cylinder (7) for distinguishing different optical fibers.

Further, the line card includes a plurality of protrusions, and grooves are formed between the protrusions.

Further, the diameter of the first cylinder (5) and the third cylinder (7) is not less than 80 mm, and the diameter of the second cylinder (6) is not less than 40 mm.

Further, both the first cylinder (5) and the second cylinder (6) are fixed by screws.

Further, there is at least one distribution box.

The drawer-type optical fiber distribution frame of each embodiment of the present invention includes a newly designed movable connector, which can automatically adjust the length of the optical fiber according to the position of the distribution box, so that the distribution box can be smoothly put in and out of the casing. The line card is designed on the outside of the cylinder, which can meet the needs of multiple distribution boxes, and also ensures that there will be no knots between different optical fibers. The bending radius meets the relevant bending radius requirements, ensuring the safe and reliable connection of optical fibers.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention.

The technical solution of the present invention will be described in further detail below with reference to the drawings and embodiments.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

FIG. 1 is a schematic structural diagram of a distribution frame in the prior art described in an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a drawer-type optical fiber distribution frame according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the movable connector described in the embodiment of the present invention;

Fig. 4 is a schematic structural view of the stretched state of the spring described in the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a line card according to an embodiment of the present invention.

In conjunction with the accompanying drawings, the reference signs in the embodiments of the present invention are as follows:

1-shell; 2-junction box; 3-optical fiber; 4-movable connector; 5-first cylinder; 6-second cylinder; 7-third cylinder; 8-first connecting rod; -9 - second connecting rod; 10 - spring; 11 - protrusion; 12 - groove.

Detailed ways

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

Embodiment one:

The drawer-type optical fiber distribution frame is shown in Figure 2 after the improvement of the existing drawer-type distribution frame as shown in Figure 1. 3 is set in the distribution box 2, the distribution box has an optical fiber margin outside, and also includes an active connector configured to change the optical fiber margin, the optical fiber 3 is installed on the active connector 4, and the optical fiber margin is when the distribution box When the cable box is pulled out or put in, the length of the optical fiber remaining outside the distribution box can be changed by changing the fiber margin to prevent the fiber from being pulled out because there is not enough margin.

Embodiment two:

Combining 2 and FIG. 3 , the biggest difference between the present invention and the traditional optical fiber distribution frame is the movable connector 4 , and the optical fiber 3 is installed on the movable connector 4 according to FIG. 2 .

The movable connector can automatically adjust the length of the optical fiber according to the position of the fiber tray, so that the fiber tray can be put in and out of the shell smoothly.

The movable connector is composed of cylinders 5, 6, 7, springs and connecting rods. The cylinders 5 and 6, and the cylinders 5 and 7 are connected by connecting rods. The cylinders 5 and 6 are fixed, and the cylinder 7 is movable. . Connecting rod 1 is between cylinder 5,6, connecting rod 2 is between cylinder 5,7, connects with spring between connecting rod 1,2. The middle of the cylinder 5 is fixed with screws, which can ensure that the cylinder 7 rotates around the cylinder 5, and the spring can automatically recover after the angle between the connecting rods 1 and 2 becomes large.

It will be appreciated that the optical fibers may be arranged around the cylinder.

In the actual work of the retractable optical fiber distribution frame, after the optical fiber is installed according to the method shown in Figure 2, it can be used normally. As shown in FIG. 4 , when the operation and maintenance personnel only need to pull out the distribution box 2 , the cylinder 7 is rotated under force, so that the distribution box 2 can have enough fiber optics to be pulled out smoothly. When the operation and maintenance personnel put the distribution box 2 back after the operation, the angle between the connecting rods 1 and 2 can be reduced due to the contraction of the spring itself, and it can be restored as shown in Figure 2

Embodiment three:

As shown in Figure 5, according to the actual situation, there may be multiple distribution boxes 2 in the shell 1. Designing line cards outside the cylinder and putting different optical fibers into the line cards can not only ensure clear and beautiful wiring, but also It is suitable for the use of multiple distribution boxes, and at the same time, it also ensures that there will be no knotting between different optical fibers.

The line card is designed on the outside of the cylinder, which can meet the use of multiple distribution boxes, and also ensures that there will be no knotting between different optical fibers

The line card includes a plurality of protrusions 11, grooves 12 are formed between the protrusions, and optical fibers 3 are placed in the grooves

Embodiment four:

The diameter of cylinders 5 and 7 is not less than 80mm, and the diameter of cylinder 6 is not less than 40mm, so that the optical fiber (the diameter of the optical fiber with a sleeve is 2mm) meets the relevant bending radius requirements and ensures the safe and reliable connection of the optical fiber.

At least the following beneficial effects can be achieved:

It can save time and effort to insert and insert the optical fiber distribution box, which not only avoids the breakage of the optical fiber when the traditional optical fiber distribution frame is forcibly pulled out of the distribution box, but also avoids possible gaps on the fiber jumper due to the narrow operating space Misalignment, the fiber jumper is inserted into the wrong port, etc. The present invention also designs a line card on the outer side of the cylinder, which can satisfy the use of multiple distribution boxes, and also ensures that no knotting occurs between different optical fibers. At the same time, it can meet the requirements of the bending radius to ensure the safe and reliable connection of the optical fiber.

The equipment has the characteristics of simple structure, low cost, safety and reliability, etc. It is suitable for mass production, can significantly reduce the work pressure of operation and maintenance personnel, and improve the efficiency of operation and maintenance work.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (8)

1. Drawer-type optical fiber distribution frame, including the housing (1), distribution box (2) and optical fiber (3), the distribution box is set inside the housing (1), and the optical fiber (3) is set in the distribution box (2) In the method, there is an optical fiber surplus outside the distribution box, and it is characterized in that it also includes an active connector (4) configured to change the optical fiber surplus. 2. The drawer-type optical fiber distribution frame according to claim 1, characterized in that, the movable connector (4) includes a fixed first cylinder (5), a fixed second cylinder (6) and A third cylindrical body (7) that can be set movably, the first cylindrical body (5) and the second cylindrical body (6) are connected by a first connecting rod (8), and the first cylindrical body (5) It is connected with the second cylinder (7) by the second connecting rod (9), and the second cylinder (7) can be rotated with the second connecting rod (9) as the center of the first cylinder (5), the said The first connecting rod (8) and the second connecting rod (9) are connected by a spring (10). 3. The drawer-type optical fiber distribution frame according to claim 2, characterized in that, the outer surfaces of the first cylinder (5), the second cylinder (6) and the third cylinder (7) are all provided with wires Card, used to distinguish different optical fibers. 4. The drawer-type optical fiber distribution frame according to claim 3, wherein the line card comprises a plurality of protrusions, grooves are formed between the protrusions, and the optical fibers (3) are placed in the grooves. 5. The drawer-type optical fiber distribution frame according to any one of claims 2-4, characterized in that, the diameter of the first cylinder (5) and the third cylinder (7) is not less than 80 mm, and the diameter of the second cylinder Body (6) diameter is not less than 40mm. 6. The drawer-type optical fiber distribution frame according to claim 5, characterized in that, both the first cylinder (5) and the second cylinder (6) are fixed by screws. 7. The drawer-type optical fiber distribution frame according to claim 1, wherein there is at least one distribution box. 8. The drawer-type optical fiber distribution frame according to claim 1, characterized in that the movable connector (4) for changing the optical fiber margin is specifically to automatically adjust the length of the optical fiber according to the position of the distribution box, so that the distribution box can be placed smoothly and means for extracting the case.