CN104965273A - Fiber adapter box body, fiber adapter box, and prefabricated cabin front-wiring screen cabinet - Google Patents

Abstract

The invention relates to a box body of an optical fiber transfer box, an optical fiber transfer box and a wiring screen cabinet in front of a prefabricated cabin. Wherein the optical fiber transfer box includes a box body and an optical fiber flange, the box body includes a bottom plate and a coaming plate, and front and rear through holes are arranged on the front side plate of the coaming plate, and the optical fiber flange is fixed at the front and rear through holes and the optical fiber method One end of the connecting end of the blue is communicated with the inner side of the box body, and the other end is communicated with the outer side of the box body, so that the cable and the fiber jumper can be separately set to the outside and inside of the fiber optic transition box during use, thereby reducing the impact on the fiber The requirement for the internal space of the transfer box enables the optical fiber transfer box to adopt a smaller volume.

Description

Optical fiber transfer box body, optical fiber transfer box and prefabricated cabin front wiring screen cabinet

technical field

The invention relates to a box body of an optical fiber transfer box, an optical fiber transfer box and a wiring screen cabinet in front of a prefabricated cabin.

Background technique

The prefabricated cabin of the secondary equipment is an important part of the standard distribution substation. In order to reduce the floor space of the cabin, it is necessary to arrange the screen cabinets in the cabin in double rows, and the equipment in the panel needs to be connected in the front, and the terminals can only be used horizontally. The rows are arranged at the lower part of the screen body, and it is necessary to reserve routing space for optical cables, so the requirements for the internal space of the screen body are extremely high.

The secondary equipment is arranged in the prefabricated cabin, and the communication between it and the primary equipment outside the cabin is realized by prefabricated optical cables. The prefabricated optical cables are equipped with optical fiber connectors, and the prefabricated optical cables with optical fiber connectors are first introduced into the optical fiber conversion cabinet in the prefabricated cabin of the secondary equipment, and then led out to each screen cabinet through the optical fiber conversion cabinet, and then realize plug-and-play with the secondary equipment use.

At present, the prefabricated optical cables are led out to the screen cabinets through the optical fiber transfer cabinets through the optical fiber transfer boxes. The existing optical fiber transfer boxes are such as the optical cable connection disclosed in the Chinese patent with the application number 201420642744.9 and the authorized announcement number CN 204166175 U The box includes a bottom plate, a coaming plate and a cover plate. There is an inlet hole for prefabricated optical cables on the bottom plate. The cable inlet hole is closed by a detachable cover on the bottom plate. (that is, the adapter corresponding to the optical connector) has a honeycomb-shaped flange mounting hole; in addition, the enclosure includes at least one enclosure segment, and the two ends of the enclosure segment are respectively provided with corresponding connecting structures. When in use, enable the corresponding number of entry holes according to the actual number of incoming optical cables, so as to meet the needs of multiple optical cables entering the box.

However, since the fiber optic flange needs to be set inside the coaming when used, the fiber optic cables and fiber jumpers must be laid inside the fiber optic transition box, which requires a large space, and naturally needs to increase the volume of the fiber optic transition box; At the same time, there are many optical fibers in the box, and the organization is chaotic. It is not easy for optical fiber jumpers or pigtails to enter and exit the optical fiber transfer box, which is very inconvenient for installation, maintenance and repair. Furthermore, since the cable entry hole is set on the bottom plate at a relatively deep position, and the fiber optic transition box is placed at a very low position, it is difficult to visually observe the wiring situation during wiring, and it is not convenient for manual operation, resulting in low work efficiency and labor-intensive big.

Contents of the invention

The object of the present invention is to provide an optical fiber transfer box body to solve the problem that the existing optical fiber transfer box takes up too much space; at the same time, the present invention also provides an optical fiber transfer box and the The prefabricated cabin front wiring screen cabinet of the box.

The technical solution adopted by the optical fiber transition box in the present invention is: the optical fiber transition box includes a box body and an optical fiber flange, the box body includes a bottom plate and a coaming plate, and front and rear through holes are provided on the front side plate of the coaming plate , the optical fiber flange is fixed at the front and rear through holes, and one end of the connecting end of the optical fiber flange communicates with the inside of the box, and the other end communicates with the outside of the box.

Jumper perforations for optical fiber jumpers to pass are provided on the coaming plate, and the jumper perforations are long holes arranged on the left side plate and the right side plate of the coaming plate.

The base plate has an overhanging portion protruding forward from the front side plate, and the overhanging portion is provided with an optical cable through hole for the optical cable to pass through the base plate along the up and down direction.

The front ends of the left side board and the right side board of the enclosure board are flush with and fixedly connected to the front end of the bottom board.

A fiber storage tray for coiling optical fibers is arranged on the bottom plate.

The technical scheme adopted by the optical fiber transfer box body in the present invention is: the optical fiber transfer box body includes a bottom plate and a coaming plate, and the front side plate of the coaming plate is provided with a flange for installing the optical fiber flange and making the optical fiber flange One end of the connecting end communicates with the inside of the box, and the other end communicates with the outside of the box.

Jumper perforations for optical fiber jumpers to pass are provided on the coaming plate, and the jumper perforations are long holes arranged on the left side plate and the right side plate of the coaming plate.

The base plate has an overhanging portion protruding forward from the front side plate, and the overhanging portion is provided with an optical cable through hole for the optical cable to pass through the base plate along the up and down direction.

A fiber storage tray for coiling optical fibers is arranged on the bottom plate.

The technical scheme adopted in the prefabricated cabin front wiring screen cabinet in the present invention is: the prefabricated cabin front wiring screen cabinet includes a cabinet body and an optical fiber transfer box fixed on the cabinet body, and the optical fiber transfer box includes a box body and an optical fiber flange , the box body includes a base plate and a coaming plate, front and rear through holes are arranged on the front side plate of the coaming plate, the optical fiber flange is fixed at the front and rear through hole and one end of the connecting end of the optical fiber flange is connected to the The inside of the box is connected, and the other end is connected with the outside of the box.

The present invention adopts the above-mentioned technical scheme, front and rear through holes are arranged on the front side plate of the coaming, the optical fiber flange is fixed at the front and rear through holes, and one end of the connecting end of the optical fiber flange communicates with the inner side of the box body, and the other end communicates with the inner side of the box body. The outer side of the box is connected, so that the cable and the fiber jumper can be separately installed outside and inside the fiber optic transition box during use, thereby reducing the demand for the internal space of the fiber optic transition box, so that the fiber optic transition box can be used Small size.

Further, jumper wire perforations are set on the coaming to facilitate the extraction of optical fiber jumper wires, which is convenient to use. And the bottom plate has an overhanging part that protrudes forward from the front side plate. The overhanging part is provided with an optical cable perforation for the optical cable to pass through the bottom plate along the up and down direction, so that the cable wiring operation can be carried out at the front, which is convenient for operation. The over-passed optical cable plays a fixed role to improve reliability. In addition, since the optical cable can be installed outside the optical fiber transfer box, there is more space inside the box to set up a fiber storage tray for storing the excess length of the optical fiber jumper, which is convenient for maintenance.

Description of drawings

Fig. 1 is a schematic structural view after removing the cover plate of Embodiment 1 of the optical fiber transition box in the present invention;

FIG. 2 is a schematic structural view of a cover plate of the optical fiber transition box in FIG. 1 .

Detailed ways

Embodiment 1 of the optical fiber transition box in the present invention is shown in FIGS. 1-2 , which includes a box body and an optical fiber flange module 14 fixed on the box body.

The base plate 11 is fixedly assembled at the lower end of the coaming plate 12, and its front portion has an overhang portion protruding forward from the front side plate, and the overhang portion is provided with an optical cable perforation 16 for the optical cable to pass through the base plate in the up and down direction, for The introduction of the off-screen tail cable (that is, the tail cable outside the screen cabinet); the upper part is provided with two fiber storage trays 18, which are used to store the excess length of the optical fiber jumper. There are four front and rear through holes on the front side of the enclosure 12 for installing fiber optic flanges; two jumper perforations 15 are respectively opened on the left side and right side of the enclosure 12 for the optical fiber in the panel. The entry and exit of the jumper (that is, the optical fiber jumper inside the screen cabinet); the front ends of the left side plate and the right side plate of the enclosure 12 are flush with the front end of the bottom plate 11 and are fixedly connected, with high structural strength. The number of optical cable perforations 16 is equal to that of the front and rear through holes, and can correspond to one or a group of optical cables respectively.

In this embodiment, the fiber optic flanges are duplex LC fiber optic flanges, and every 12 duplex LC fiber optic flanges are combined into a fiber optic flange module 14 in two rows and six columns. When in use, the fiber optic flange is used to realize the non-fusion connection between the pigtail cable outside the screen and the optical fiber jumper inside the screen. According to the requirements of the number of fiber cores introduced into the cabinet, 1 to 4 fiber optic flange modules 14 can be installed.

In order to realize a reliable connection with the cabinet body of the front wiring screen cabinet of the secondary equipment prefabricated cabin, a connecting ear plate 17 for fixed connection with the cabin body of the secondary equipment prefabricated cabin is also provided on the hoarding plate 12 . In this embodiment, the connecting ear plate is in the shape of an angle, one side of which is fixed together with the coaming plate by screws, and the other side is provided with a through hole for solid connection with the cabinet body of the prefabricated front wiring screen cabinet of the secondary equipment.

The cover plate 13 is detachably assembled on the upper end of the coaming plate. The specific assembly method is: the rear end top of the coaming plate 12 is provided with a flanging, and there is a gap between the flanging and the parts on the left and right sides of the coaming plate to form a cover plate insertion Connecting slot, the rear end of the cover plate can be inserted into the slot of the cover plate for positioning; the left and right ends of the front side edge of the cover plate 13 are provided with bending cards, which can form buckles with the corresponding recesses provided on the front end of the enclosure connection to secure the cover.

The second embodiment of the optical fiber transition box in the present invention is different from the first embodiment in that: in this embodiment, the upper and lower ends of the enclosure are respectively provided with corresponding connection structures. You can refer to the optical fiber transition box disclosed in the cited patent documents of the background technology. The enclosure shown in Figure 1 of the present application can be used as a enclosure segment, and the connection structure is provided at the end of the enclosure segment. The eversion edge is provided with connecting holes. If the number of cores of the tail cable is large, each coaming plate segment can be butted up and down, and the connecting holes on each coaming plate segment can be used to fix the connection. The valgus edge is used to connect each coaming segment, which will not affect the bottom plate in each coaming segment, and each coaming segment can be provided with a bottom plate at the same time, and a fiber storage tray can be arranged on the bottom plate.

The embodiment of the optical fiber transfer box box body in the present invention is the box body of the optical fiber transfer box in the above-mentioned embodiment; an embodiment of the wiring screen cabinet in front of the prefabricated cabin in the present invention includes a cabinet body and an optical fiber transfer box, and the optical fiber transfer box The box is the optical fiber transition box in the above embodiment, and is fixed on the cabinet body through connecting ear plates.

In the above-mentioned embodiment, the bottom plate has an overhanging portion protruding forward from the front side plate, and the overhanging portion is provided with an optical cable perforation for the optical cable to pass through the bottom plate in the up and down direction, and the coaming plate is provided with a hole for the optical fiber to jump through. Jumper piercings for wires to pass through. In other embodiments of the present invention, the overhanging part of the bottom plate can also be omitted, and an optical cable avoidance part is formed in the optical fiber conversion box, so that the optical cable directly passes through the optical cable avoidance part; and the jumper perforation on the enclosure can also be replaced For other forms, such as being set on the base plate and the cover plate. Of course, the number and size of the optical cable through holes, the front and rear through holes and the jumper through holes can also be adjusted according to requirements.

Claims (10)

1. optic fibre switching case, comprise casing and optical fiber flange, described casing comprises base plate and coaming plate, it is characterized in that: the front side board of described coaming plate is provided with front and back through hole, described optical fiber flange is fixed on through hole, described front and back and one end of the link of optical fiber flange is communicated with described box inside, the other end is communicated with outside described casing.

2. optic fibre switching case according to claim 1, is characterized in that: described coaming plate is provided with the wire jumper perforation passed through for optical patchcord, and described wire jumper perforation is for being arranged on the elongated hole on the left plate of coaming plate and right plate.

3. optic fibre switching case according to claim 1 and 2, is characterized in that: described base plate has the overhang of stretching out forward described front side board, and described overhang is provided with is bored a hole by the optical cable of base plate along the vertical direction for optical cable.

4. optic fibre switching case according to claim 3, is characterized in that: the left plate of described coaming plate is concordant with the front end of described base plate with right plate front end and be fixedly connected with.

5. optic fibre switching case according to claim 1 and 2, is characterized in that: described base plate is provided with the fiber storage tray for coiled fiber.

6. optic fibre switching box body, comprise base plate and coaming plate, it is characterized in that: the front side board of described coaming plate be provided with for installing optical fibres flange and make that one end of the link of optical fiber flange is communicated with described box inside, the other end and the front and back through hole be communicated with outside described casing.

7. optic fibre switching box body according to claim 6, is characterized in that: described coaming plate is provided with the wire jumper perforation passed through for optical patchcord, and described wire jumper perforation is for being arranged on the elongated hole on the left plate of coaming plate and right plate.

8. the optic fibre switching box body according to claim 6 or 7, is characterized in that: described base plate has the overhang of stretching out forward described front side board, and described overhang is provided with is bored a hole by the optical cable of base plate along the vertical direction for optical cable.

9. the optic fibre switching box body according to claim 6 or 7, is characterized in that: described base plate is provided with the fiber storage tray for coiled fiber.

10. wiring screen cabinet before prefabricated cabin, comprise cabinet and be fixed on the optic fibre switching case on cabinet, described optic fibre switching case comprises casing and optical fiber flange, described casing comprises base plate and coaming plate, it is characterized in that: the front side board of described coaming plate is provided with front and back through hole, described optical fiber flange is fixed on through hole, described front and back and one end of the link of optical fiber flange is communicated with described box inside, the other end is communicated with outside described casing.