CN107656345B - A rack-type fiber optic cable jumper storage box - Google Patents

Abstract

The invention discloses a rack type optical cable jumping fiber containing box which comprises a shell, wherein the shell is of a cuboid structure, and the two longitudinal sides of the shell are provided with the same number of fixing devices; two first winding columns with a cylindrical structure are arranged on the inner side of the shell, two 1/4 branching lines are arranged in the long direction of the shell, one 1/2 branching line is arranged in the short direction of the shell, a left intersection point and a right intersection point are formed by the two branching lines in the long direction 1/4 and the one branching line in the short direction 1/2, and the centers of circles of the two first winding columns are respectively positioned on the left intersection point and the right intersection point; two 1/16 branches are arranged in the long direction of the shell, two 1/8 branches are arranged in the short direction of the shell, and a left front intersection point, a right front intersection point, a left rear intersection point and a right rear intersection point are formed by the two long directions 1/16 branches and the two short directions 1/8 branches. The invention reduces the complexity of fiber jumping in the storage box, also reduces the crossing degree of the fiber jumping, ensures that the curvature radius is in a range as large as possible, avoids overlarge optical signal attenuation decibel under the condition of over-small curvature radius, and ensures good optical signal transmission quality.

Description

A rack-type fiber optic cable jumper storage box

technical field

The invention relates to the field of optical fiber communication, in particular to a rack-type optical fiber jumper fiber accommodating box.

Background technique

With the development of FTTX, the number of optical fibers in the equipment room is constantly increasing, and higher requirements are placed on the manageability of fiber jumpers, which makes the use of traditional optical distribution frames (ODFs) greatly challenged. . At the same time, with the increasing shortage of land for the computer room, the expensive space used in the computer room also puts forward better capacity requirements for the optical fiber distribution frame. The appearance of optical fiber with small curvature radius provides convenience for further increasing the capacity of optical distribution frame. However, most of the optical fiber distribution frames using this small curvature radius light are in the research and development stage; in addition, the increase in the capacity of the optical fiber unit box will greatly increase the number of optical fibers and patch fibers, resulting in more dense and complex wiring and fiber routing. , which brings inconvenience to the operation.

The traditional fiber patch panel between racks needs to pass through the fiber rack at the top of the equipment room, and a large amount of space needs to be reserved in the rack for storing redundant patch fibers, and the production cost is high; The wiring of fiber jumpers is complex and has many crosses, which will not only cause the radius of curvature of the fiber jumpers to be small and affect the quality, but also bring inconvenience to installation, maintenance and management.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention provides a rack-type optical fiber cable jumper fiber storage box, which specially accommodates fiber jumpers and can be directly inserted into the optical fiber distribution frame, which simplifies the wiring of the optical fiber distribution frame, reduces the crossover, and avoids the occurrence of small curvature. Radius, which affects signal quality.

The present invention is achieved through the following technical solutions:

A rack-type optical fiber jumper accommodating box includes a casing, the casing is in the form of a cuboid, and the same number of fixing devices are arranged on both sides of the casing in the longitudinal direction, and the fixing devices are used for the insertion and exit of the jumper fiber. ;There are two first winding columns of cylindrical structure on the inner side of the shell, there are two 1/4 lines in the long direction of the shell, one 1/2 line in the short direction of the shell, and two long lines in the 1/4 line The branch line and a short 1/2 branch line form a left intersection and a right intersection, and the centers of the two first winding columns are located at the left intersection and right intersection respectively; there are two 1/16 Branching lines, there are two 1/8 branching lines in the short direction of the shell, two long 1/16 branching lines and two short 1/8 branching lines to form the left front intersection, right front intersection, left rear intersection, and right rear intersection. There is a 1/2 line in the long direction of the shell, a long 1/2 line and two short 1/8 lines to form a middle front intersection and a middle rear intersection, and there are 6 cylinders in the shell. The second winding column of the structure, the centers of the 6 second winding columns are located at the left front intersection, right front intersection, left rear intersection, right rear intersection, middle front intersection and middle rear intersection; the diameter of the first winding column is less than or equal to the diameter of the shell. 1/2 of the short distance, the diameter of the second winding column is 1/4 of the diameter of the first winding column.

In the present invention, a first winding column and a second winding column are arranged in the casing, the diameter of the first winding column and the diameter of the second winding column are different, the diameter of the first winding column is the largest, and the two first winding columns are arranged in the casing. It is used to accommodate long fiber jumpers. The diameter of the second winding column is smaller than the diameter of the first winding column. One of the functions is to accommodate medium and long fiber jumpers, and the second function is to assist the first winding column to accommodate longer fiber jumpers. When the longer jumper fiber is wound on the first winding column, if there is a surplus but the first winding column is too large, the remaining jumper fiber is wound to the second winding column.

The longitudinal direction referred to in the present invention refers to the direction of the straight line where the long side of the rectangle is located, and the longitudinal 1/4 line refers to the three straight lines parallel to the short side of the rectangle that divide the long side of the rectangle into four equal parts. The 1/4 dividing line of the left and right sides of the , the short direction referred to in the present invention refers to the straight line direction where the short side of the rectangle is located, and the short 1/2 dividing line refers to dividing the short side of the rectangle into two equal parts. A straight line parallel to the long side of the rectangle, the 1/16th line and the 1/8th line referred to in the present invention are obtained according to the same principle as above.

Different types of optical fiber distribution frames with different functions have different length ranges of fiber jumpers. The volume and thickness of the present invention can be applied to various fiber distribution frames that require fiber jumpers according to actual requirements. In the present invention, two first winding columns are arranged on the left and right sides of the housing, specifically on the left intersection and right intersection, and six second winding columns are respectively arranged at the left front intersection, right front intersection, left rear intersection, and right intersection. At the rear intersection, the middle front intersection and the middle rear intersection, the fibers of different lengths can be wound in the most suitable way through the matching between the first winding column and the second winding column of different numbers, which reduces the fiber jumper in the storage box. The complexity also reduces the degree of crossover of the fiber jumper, ensures that the radius of curvature is within the largest possible range, avoids excessive attenuation of the optical signal by decibels when the radius of curvature is too small, and ensures good optical signal transmission quality.

Further, the inner side of the housing is also provided with a third winding column with 14 cylindrical structures, and two third winding columns are arranged at equal intervals on the connecting line of the centers of the circles of every two second winding columns, and the third winding column is arranged at equal intervals. The diameter of the winding column is 1/2 of the diameter of the second winding column. The third winding column is used to wind the jumper fiber on the third winding column to eliminate the excess jumper when the length of the remaining jumper fiber is not enough to wind the second winding column after the jumper fiber is wound around the first winding column and/or the second winding column. Fiber is overdone.

Further, the fixing device includes a casing, two card positions and two bayonet openings, the casing is used for splicing the jumper connector, one card position and one buckle are located on both sides of one end of the casing, and the other card position is connected to the other card. The buckle is located on both sides of the other end of the casing, and the buckle and the clamping position on the same side are located on a diameter of the casing; the two ends of the casing are also movably provided with buckles, the buckles include a buckle cover, and the buckle cover is a flat plate structure, An optical fiber perforation is arranged in the middle, one side of the snap cover is provided with a buckle and an inverted buckle, the other end of the buckle connected to the end of the snap cover has a first protrusion, and the first protrusion is used for inserting into the buckle, and the inverted buckle is provided. The other end of the buckle connected to the end of the buckle cover has a second protrusion, and the second protrusion is used for the caliper to hold the position.

The optical fiber is easily damaged, and the fiber jumper is usually wrapped around the winding column in the fiber jumper storage box. If the fiber jumper is suddenly tightened by mistake when using the fiber jumper, it is easy to cause damage to the fiber, or the connector of the fiber jumper is removed from the fiber jumper. Falling off from the storage box is also likely to cause damage to the fiber jumper. In the present invention, a buckle is provided on the fixing device, and the buckle in the buckle is covered with a fiber optic perforation. The other side of the side with the connector is covered on the shell, the buckle on the buckle cover is inserted into the bayonet of the fixing device first, and then by squeezing the reverse buckle on the other side, the reverse buckle is clamped on the card position, and then The fixing of the completed connector can only be removed by manual operation, which ensures the safety of the connector and prevents the jumper from being damaged due to the sudden tension of the jumper.

Further, grooves parallel to the axes of the corresponding winding columns are uniformly distributed on the outer surface of the first winding column and the outer surface of the second winding column. Grooves are arranged on the first winding column and the second winding column. When the jumper fiber is wound on the winding column, the groove can increase the friction between the jumper fiber and the surface of the winding column, and has a buffering effect on the extraction of the jumper fiber.

Further, the surface of the first winding column is covered with a rubber layer with a thickness of 0.5 mm to 1 mm; the surface of the second winding column is covered with a rubber layer of a thickness of 0.5 mm to 1 mm. One of the functions of the rubber layer is that when the fiber jumper is stretched, a buffer layer will be formed between the winding column and the fiber jumper, and part of the tension that the fiber jumper bears will be buffered by the rubber layer to reduce the jump. The second function of the rubber layer is to further improve the friction between the jumper fiber and the winding column, and provide a buffering and deceleration effect on the extraction of the jumper fiber.

Further, the number of superimposed optical fibers on the same tangent point of the first winding column and the second winding column does not exceed 4. Limiting the number of superimposed optical fibers can avoid that the extrusion between the optical fibers will cause the inner optical fibers to be subjected to greater stress, which will cause extrusion damage to the optical fibers and affect transmission.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

1. In the present invention, optical fibers of different lengths can be optimally wound on the fiber jumper through the matching between different numbers of the first winding column and the second winding column, which reduces the complexity of the fiber jumper in the storage box, and also reduces the The degree of crossover of the fiber jumper is ensured, and the radius of curvature is as large as possible, which avoids excessive attenuation of the optical signal by decibels when the radius of curvature is too small, and ensures good optical signal transmission quality;

2. The buckle on the buckle cover of the present invention is first inserted into the bayonet of the fixing device. After squeezing the reverse buckle on the other side, the reverse buckle is clamped on the clamping position, and the fixing of the connector is completed. The connector can only be removed manually, which ensures the safety of the connector, thereby preventing the damage of the jumper caused by the sudden tension of the jumper;

3. One of the functions of the rubber layer provided in the present invention is that when the fiber jumper is stretched, a buffer layer will be formed between the winding column and the fiber jumper, and a part of the tension force that the fiber jumper bears will be applied to the rubber layer. Cushioning, reducing the force of the jumper; the second function of the rubber layer is to further improve the friction between the jumper and the winding column, and provide a buffering and decelerating effect on the extraction of the jumper.

Description of drawings

The accompanying drawings described herein are used to provide further understanding of the embodiments of the present invention, and constitute a part of the present application, and do not constitute limitations to the embodiments of the present invention. In the attached image:

Fig. 1 is the structural representation of the present invention;

2 is a schematic diagram of the buckle structure of the present invention;

FIG. 3 and FIG. 4 are the groove structures on the surfaces of the first winding column and the second winding column according to the present invention.

The marks in the attached drawings and the corresponding parts names:

1-Snap, 2-Housing, 3-Fixing device, 4-Second winding column, 5-Third winding column, 6-First winding column, 11-Snap cover, 12-Fiber through hole, 13-Plug Buckle, 14-inverted buckle, 31-shell, 32-card position, 33-bayonet.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and the accompanying drawings. as a limitation of the present invention.

Example

As shown in FIG. 1 to FIG. 4 , a rack-type optical fiber jumper storage box includes a casing 2 , the casing 2 has a cuboid structure, and the same number of fixing devices are arranged on both sides of the casing 2 in the longitudinal direction. 3. The fixing device 3 is used for the insertion and exit of the jumper; the inner side of the shell 2 is provided with two first winding columns 6 of cylindrical structure. 2 There is a 1/2 line in the short direction, two long 1/4 lines and a short 1/2 line form a left intersection and a right intersection, and the centers of the two first winding columns 6 are at On the left intersection and right intersection; housing 2 has two 1/16 points in the long direction, two 1/8 points in the short direction of case 2, two long 1/16 points and two short The left front intersection, the right front intersection, the left rear intersection, and the right rear intersection are formed to the 1/8 line, and there is a 1/2 line in the long direction of the shell 2, a long 1/2 line and two short 1/2 lines. The 8-point line forms the middle front intersection and the middle rear intersection. There are also 6 second winding columns 4 with cylindrical structures in the housing 2. The centers of the 6 second winding columns 4 are located at the left front intersection, right front intersection, and left rear respectively. The intersection, the right rear intersection, the middle front intersection and the middle rear intersection; the diameter of the first winding column 6 is less than or equal to 1/2 of the short distance of the shell 2, and the diameter of the second winding column 6 is the diameter of the first winding column 6. 1/4.

There are also 14 third winding columns 5 in the inner side of the casing 2, and two third winding columns 5 are arranged at equal intervals on the connecting line between the centers of the circles of every two second winding columns 4. The diameter of the third winding column 5 is 1/2 of the diameter of the second winding column 4 .

The fixing device 3 includes a casing 31, two card positions 32 and two bayonet openings 33. The casing 31 is used for socketing the fiber jumper connector, one card position 32 and one buckle 33 are located on both sides of one end of the casing 31, The position 32 and the other buckle 33 are located on both sides of the other end of the casing 31, and the buckle 33 and the position 32 on the same side are located on a diameter of the casing 31; The buckle 1 includes a buckle cover 11, the buckle cover 11 is a flat plate structure, an optical fiber through hole 12 is arranged in the middle, and a buckle 13 and an inverted buckle 14 are arranged on one side of the buckle cover 11, and the buckle 13 is connected to the buckle. The other end of the cover 11 has a first protrusion, the first protrusion is used to insert into the buckle 1, and the other end of the inverted buckle 14 connected to the end of the buckle cover 11 has a second protrusion, and the second protrusion is used for the caliper.

The outer surface of the first winding column 6 and the outer surface of the second winding column 4 are uniformly distributed with grooves parallel to the axis of the corresponding winding column.

The surface of the first winding column 6 is covered with a rubber layer with a thickness of 0.5 mm to 1 mm; the surface of the second winding column 4 is covered with a rubber layer of a thickness of 0.5 mm to 1 mm.

The number of superimposed optical fibers of the first winding column 6 and the second winding column 4 at the same tangent point does not exceed 4.

The specific embodiments described above further describe the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (5)

1. A rack-type optical fiber jumper accommodating box, characterized in that it comprises a casing (2), the casing (2) is in the form of a cuboid, and the casing (2) is provided with the same number on both sides in the longitudinal direction. The fixing device (3) is used for the penetration and penetration of the jumper fiber; the inner side of the housing (2) is provided with two first winding columns (6) of cylindrical structure, and the housing (2) There are two 1/4 branch lines in the long direction, and a 1/2 branch line in the short direction of the shell (2). At the right intersection, the circle centers of the two first winding columns (6) are located at the left intersection and the right intersection respectively; the shell (2) has two 1/16 lines in the long direction, and the shell (2) has two lines in the short direction. Two 1/8 points, two long 1/16 points and two short 1/8 points form the left front intersection, right front intersection, left rear intersection, and right rear intersection, and the shell (2) has a long direction. A 1/2 branch line, a long 1/2 branch line and two short 1/8 branch lines form a middle front intersection and a middle rear intersection, and 6 cylindrical structures are also arranged in the shell (2). The second winding column (4), the centers of the six second winding columns (4) are respectively located at the left front intersection, right front intersection, left rear intersection, right rear intersection, middle front intersection and middle rear intersection; the first winding column (6) The diameter of the casing (2) is less than or equal to 1/2 of the short distance of the casing (2), and the diameter of the second winding column (4) is 1/4 of the diameter of the first winding column (6); The fixing device (3) includes a casing (31), two card positions (32) and two bayonet openings, the casing (31) is used for socketing the jumper connector, and one card position (32) and one bayonet are located in the casing (32). On both sides of one end of 31), the other latch (32) and the other bayonet are located on both sides of the other end of the casing (31); the two ends of the casing (31) are also movably provided with buckles (1), the buckles. (1) Including a snap cover (11), the snap cover (11) is a flat plate structure, an optical fiber through hole (12) is provided in the middle, and one end of the snap cover (11) is provided with a snap (13) and an inverted Buckle (14), the other end of the buckle (13) connected to the end of the buckle cover (11) has a first projection, the first projection is used for inserting into the bayonet, and the inverted buckle (14) is connected to the buckle cover (11) The other end of the end has a second protrusion, and the second protrusion is used for the caliper to hold the position (32). 2. A rack-type optical fiber jumper fiber accommodating box according to claim 1, characterized in that, the inner side of the casing (2) is further provided with a third winding column (5) having 14 cylindrical structures, Two third winding columns (5) are arranged at equal intervals on the connecting line between the centers of the circles of every two second winding columns (4), and the diameter of the third winding column (5) is equal to the diameter of the second winding column (4). 1/2. 3. A rack-type optical fiber jumper fiber accommodating box according to claim 1, characterized in that the outer surface of the first winding column (6) and the outer surface of the second winding column (4) are uniformly distributed with Correspondingly parallel grooves around the axis of the column. 4. A rack-type optical fiber jumper fiber accommodating box according to claim 1, characterized in that, the surface of the first winding column (6) is covered with a layer of rubber layer of 0.5mm~1mm; the second winding column (6) 4) The surface is covered with a layer of rubber layer after 0.5mm~1mm. 5. A rack-type optical fiber jumper fiber accommodating box according to claim 1, characterized in that the number of optical fibers superimposed on the same tangent point by the first winding column (6) and the second winding column (4) is different. more than 4.

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