CN108562982A - Optoelectronic composite cable quick coupling - Google Patents

Abstract

The invention discloses a quick connector for a photoelectric composite cable, which comprises a barrel body, a first joint and a second joint that are coaxially sealed and connected to both ends of the barrel body, a photoelectric connection plate is arranged in the barrel body, and the photoelectric connection plate The two ends of the two ends are respectively connected to the first joint and the second joint. The photoelectric connection board separates the barrel into the first connection chamber and the second connection chamber. The photoelectric connection board is provided with an optical unit connection tray. The optical unit splicing tray has a curved installation portion, on which an optical fiber connection terminal is arranged; the photoelectric splicing tray is also provided with a wire connection terminal, and the wire connection terminal is arranged in the second connection cavity. The photoelectric composite cable quick connector of the present invention simplifies the structural design, increases the fiber storage capacity, realizes photoelectric separation and multi-unit processing of the connector, is easy to operate the connector, reduces processing costs, and can further reduce offshore construction and repair costs.

Description

Photoelectric composite cable quick connector

technical field

The invention relates to a quick connector of a photoelectric composite cable.

Background technique

As an important means of contemporary international communication, submarine cable undertakes the main international communication business and is the main carrier of the rapid development of the global information and communication industry. Photoelectric composite cables occupy a large market due to their excellent photoelectric performance. The special environment of the seabed puts forward very high requirements for the submarine cable system. The construction period of the submarine optical cable is long, the investment is huge, and it involves many links such as development, production, construction and maintenance. Each link requires special technology and equipment. The connector on the equipment side is particularly important. In addition, during the laying and operation of submarine cables, it is usually difficult to avoid damage or failure due to unexpected factors such as mechanical failures, fishing activities, and marine biological activities. Therefore, the joints must meet the requirements of rapid repair.

At present, although the submarine cable joints used have strong mechanical properties and seawater corrosion resistance, their structures are relatively complicated, which leads to a long working time for the joint connection process during offshore construction and increases construction costs; in addition, the submarine cables on the market Joints are difficult to meet the needs of multi-unit processing and have a single function.

Contents of the invention

The technical problem to be solved by the present invention is to provide a quick connector for photoelectric composite cables, which simplifies the structural design, increases the storage capacity of the fiber, realizes photoelectric separation and multi-unit processing of the connector, is easy to operate the connector, and reduces processing costs while reducing offshore construction. and repair costs.

In order to solve the above technical problems, the present invention provides a photoelectric composite cable quick connector, which includes a cylinder, a first joint and a second joint that are coaxially sealed and connected to both ends of the cylinder, and a photoelectric connection plate is arranged in the cylinder , the two ends of the photoelectric connection board are respectively connected to the first joint and the second joint, and the photoelectric connection board separates the barrel into a first connection chamber and a second connection chamber, and the photoelectric connection board is provided with an optical Unit splicing tray, the optical unit splicing tray has a mounting portion with a curved surface structure, the mounting portion is provided with an optical fiber connection terminal; continue in the cavity.

In a preferred embodiment of the present invention, it further includes that a disk fiber groove is arranged on the disk surface of the optical fiber splicing disk.

In a preferred embodiment of the present invention, it further includes that the first joint includes inner and outer vertebral bodies arranged coaxially and arranged inside and outside, and the centers of the inner and outer vertebral bodies are provided with cable ends shaft hole, the shaft hole at the cable end is connected to the cylinder body, and a threading gap is provided between the inner vertebral body and the outer vertebral body; several blind holes are provided on the end of the inner vertebral body at the end of the threading gap, so The blind holes are evenly distributed along the radial circumference of the inner vertebral body.

In a preferred embodiment of the present invention, it further includes that the end of the inner cone body has a first flange surface and a second flange surface oppositely arranged, and a first annular groove is provided on the first flange surface, The first ring groove is provided with a first sealing ring, the cylinder body is sealed and connected to the first flange surface, the cable end tray is coaxially connected to the second flange surface, and the photoelectric connection plate is fixed on the cable end tray.

In a preferred embodiment of the present invention, it further includes that a slot is provided in the circumferential direction of the cable end tray, and the end of the photoelectric splicing tray is locked in the slot.

In a preferred embodiment of the present invention, it further includes that the center of the second flange surface is provided with a first sealing groove, the center of the cable end tray is provided with a second sealing groove, and the cable end tray is coaxially connected to the The rear first sealing groove and the second sealing groove on the second flange surface combine to form a sealing cavity, and an annular sealing plug is arranged in the sealing cavity.

In a preferred embodiment of the present invention, it further includes that a ferrule is coaxially connected to the annular sealing plug; an adjusting bolt is arranged on the cable end tray, and the adjusting bolt abuts against the ferrule.

In a preferred embodiment of the present invention, it further includes that a photoelectric unit clamp block is coaxially connected to the cable end tray, and the photoelectric unit clamp block has a split mirror image and is connected as a whole. The clamping block, the end faces of the first clamping block and the second clamping block are provided with a semicircular optical unit perforation, and the aperture of the optical unit perforation is smaller than the outer diameter of the optical unit of the photoelectric composite cable; Both the first clamping block and the second clamping block are provided with electric unit perforations. The optical unit of the photoelectric composite cable enters the first connection cavity after passing through the optical unit perforation, and the electric unit of the photoelectric composite cable enters through the electric unit perforation. Second connection chamber.

In a preferred embodiment of the present invention, it further includes that the center of the second joint is provided with an equipment end shaft hole communicating with the cylinder, the end of the second joint has a third flange surface, and the third flange A second ring groove is arranged on the surface, and a second sealing ring is arranged in the second ring groove, and the cylinder body is sealingly connected to the third flange surface.

In a preferred embodiment of the present invention, it further includes that a limiting groove is provided on the third flange surface, and the end of the cable end tray is clamped in the limiting groove.

First, the photoelectric composite cable quick connector of the present invention simplifies the structural design, increases the fiber storage capacity, realizes photoelectric separation and multi-unit processing of the connector, is easy to operate the connector, reduces processing costs, and can also reduce offshore construction and repair costs.

Second, the installation part of the curved surface structure is designed on the optical unit connection tray to provide a certain bending radius for the optical unit connector, which greatly reduces the impact of the joint operation on the performance of the optical unit.

Third, the photoelectric connection plate separates the barrel into a first connection cavity and a second connection cavity with independent joints. After the photoelectric composite cable is separated, the optical unit is connected in the first connection cavity, and the electrical unit is connected in the second connection cavity. Greatly reduce the mutual interference between the optical unit and the electrical unit joint, ensuring the performance after the cable joint.

Description of drawings

Fig. 1 is a schematic structural view of a quick connector in a preferred embodiment of the present invention;

Fig. 2 is a structural schematic diagram of the first perspective of the quick connector after the cylinder body in Fig. 1 is hidden;

Fig. 3 is a structural schematic diagram of the second perspective of the quick connector after the cylinder body in Fig. 1 is hidden;

Fig. 4 is a schematic structural diagram of the quick connector after the cable end tray in Fig. 2 is hidden;

Fig. 5 is a schematic structural view of the inner vertebral body in the preferred embodiment of the present invention.

Among them: 2-cylinder, 21-photoelectric connection plate, 22-first connection cavity, 23-second connection cavity, 24-optical unit connection tray, 25-installation part, 26-optical fiber connection terminal, 27-wire connection terminal , 28-disk fiber slot.

4-first joint, 41-inner vertebral body, 42-outer vertebral body, 43-cable end shaft hole, 44-blind hole, 45-first flange surface, 46-second flange surface, 47-first Ring groove, 48-first sealing ring, 49-cable end tray, 50-card groove, 51-ring sealing plug, 52-ferrule, 53-adjusting bolt, 54-first clamping block, 55-second clamping block , 56-light unit perforation, 57-electric unit perforation.

6-second joint, 61-equipment end shaft hole, 62-third flange surface, 63-second ring groove, 64-second sealing ring, 65-limiting groove.

8-Leather wire fixing clip.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

Example

As shown in Figures 1-5, this embodiment discloses a photoelectric composite cable quick connector, which is used as a quick connector for connecting the photoelectric composite cable to the equipment end, including a cylinder 2 and a coaxial seal connected to the two ends of the cylinder 2 The first connector 4 and the second connector 6 are connected to the cable end and the equipment end respectively, and the optical unit and the electrical unit of the cable end and the equipment end are all connected in the barrel 2 . In the technical solution of the present application, the preferred structures of the cylinder body 2, the first joint 4 and the second joint 6 are:

1. The first joint 4

The above-mentioned first joint includes an inner vertebral body 41 and an outer vertebral body 42 that are coaxially arranged and arranged inside and outside. The centers of the above-mentioned inner vertebral body 41 and the outer vertebral body 42 are all provided with a cable end shaft hole 43, and the above-mentioned cable end shaft hole 43 communicates with cylinder body 2. After the inner and outer vertebral body 41 and the outer vertebral body 42 are set inside and outside, threads are provided on a part along the direction of axial extension, and taper surfaces are provided on the other part. There is a threading gap between the two tapered surfaces after the two are threaded. The cable core of the photoelectric composite cable penetrates into the cylindrical body 2 from the cable end shaft hole 43, and the steel wire of the outer armor layer of the photoelectric composite cable penetrates into the wire threading gap. The designed wire threading gap is slightly smaller than the diameter of the steel wire. After the vertebral body 42 is threaded, the steel wire is tightly pressed in the threading gap to prevent the steel wire from falling off, and the tension carried by the cable is transmitted to the inner vertebral body 41 through the tapered surface. In order to facilitate the installation of the inner vertebral body 41 and the outer vertebral body 42, the inner vertebral body 41 and the outer vertebral body 42 are designed with a hexagonal structure, and the inner vertebral body 41 and the outer vertebral body 42 can be tightened and fixed on the Together.

In order to effectively ensure that the steel wires are evenly distributed in the threading gap during the threaded connection process of the inner vertebral body 41 and the outer vertebral body 42, as shown in Figure 5, several blind holes are provided at the end of the threading gap on the inner vertebral body 41 44 , the blind holes 44 are evenly distributed along the radial circumference of the inner vertebral body 41 . While the cable core of the photoelectric composite cable extends into the barrel 2, the steel wires of the outer armor of the photoelectric composite cable are inserted into the blind hole 44 through the threading gap to ensure that the steel wires are evenly distributed in the radial direction of the inner cone 41.

2. The second connector 6

The center of the second connector 6 is provided with an equipment end shaft hole 61 connected to the cylinder body 2. The second joint 6 is connected to the equipment end, and the optical unit and the electrical unit drawn from the equipment end enter the cylinder body through the equipment end shaft hole 61. 2 within.

3. Cylinder 2

The above-mentioned barrel 2 is provided with a photoelectric connecting plate 21, and the two ends of the above-mentioned photoelectric connecting plate 21 are respectively connected to the first joint 4 and the second joint 6, and the above-mentioned photoelectric connecting plate 21 divides the barrel 2 into a first connecting cavity 22 and the second connection cavity 23, the optical unit connection tray 24 is arranged on the above-mentioned photoelectric connection plate 21, the above-mentioned light unit connection tray 24 is arranged in the first connection cavity 22, the above-mentioned light unit connection tray 24 has a mounting part 25 with a curved surface structure, An optical fiber connection terminal 26 is provided on the installation part 25 ; a wire connection terminal 27 is also provided on the photoelectric connection plate 21 , and the wire connection terminal 27 is arranged in the second connection cavity 23 .

After the photoelectric composite cable at the cable end enters the barrel 2, the optical unit is separated from the electrical unit, and after the optical unit at the equipment end enters the barrel 2, the optical unit is separated from the electrical unit, and the optical unit at the cable end and the equipment end enter the first connection. In the cavity 22, the connection of the optical unit is completed in the first connection cavity 22; the electrical units at the cable end and the equipment end enter into the second connection cavity 23, and the connection of the electrical unit is completed in the second connection cavity 23. On the one hand, the photoelectric connection plate 21 provides a support platform for the joints of the optical unit and the electrical unit, and is used for optical fiber docking, optical fiber storage and electrical unit docking, and electrical unit storage; The cavity, the optical unit and the electrical unit are respectively connected in two independent connection cavities, which can greatly reduce the mutual interference when the optical unit and the electrical unit are connected, and ensure the performance after the cable is connected.

As a further improvement of the present invention, the disk surface of the above-mentioned optical fiber splicing tray 21 is provided with a disk fiber groove 28, as shown in Figure 2, in the technical solution of this embodiment, the optical fiber splicing tray 21 is located The fiber coil groove 28 with an elliptical structure is used for coiling redundant optical fibers, increasing the fiber storage capacity, and increasing the number of times of use of optical fiber connections.

Specifically, as shown in Figures 2 and 3, the end of the above-mentioned inner cone body 41 has a first flange surface 45 and a second flange surface 46 oppositely arranged, and a first ring is arranged on the above-mentioned first flange surface 45. Groove 47, the first ring groove 47 is provided with a first sealing ring 48, the end of the second joint 6 has a third flange surface 62, the third flange surface 62 is provided with a second ring groove 63, The second ring groove 63 is provided with a second sealing ring 64; the two ends of the cylinder body are respectively connected to the first flange surface 45 and the third flange surface 62, and the first sealing ring 48 and the second sealing ring 64 seals the joint so that a sealed joint environment is formed in the cylinder body 2 .

As shown in Figures 2 and 3, a cable end tray 49 is coaxially connected to the above-mentioned second flange surface 46, and the above-mentioned photoelectric connection plate 21 is fixed on the cable end tray 49; specifically, the circumferential direction of the above-mentioned cable end tray 49 is set There is a card slot 50, and the above-mentioned third flange surface 62 is provided with a limit slot 65, and one end of the above-mentioned photoelectric connection plate 21 is clamped in the above-mentioned card slot 50 and then fixed on the cable end tray 49 by fasteners. The other end is clamped in the above-mentioned limiting slot 65 by a limit. One end of the above-mentioned photoelectric connection plate 21 is fixed, and the other end is limited in the limit groove 65 with a certain degree of freedom in the axial direction. On the one hand, it provides a stable support platform for the joint of the composite cable to prevent Vibration occurs during use; on the other hand, it can accommodate the processing error during the processing of the photoelectric splicing disc 21 .

As shown in Figure 4, the center of the above-mentioned second flange surface 46 is provided with a first sealing groove, and the center of the above-mentioned cable end tray 49 is provided with a second sealing groove, and the above-mentioned cable end tray 49 is coaxially connected to the second flange surface 46, the first sealing groove and the second sealing groove are merged to form a sealing cavity, and an annular sealing plug 51 is arranged in the sealing cavity, and the cable core at the cable end is sealed by the annular sealing plug 51. Further, as shown in FIG. 4 , a ferrule 52 is coaxially connected to the annular sealing plug 51 ; an adjusting bolt 53 is provided on the cable end tray 49 , and the adjusting bolt 53 abuts against the ferrule 52 . The annular sealing plug 51 is pushed into the sealing cavity by pressing the ferrule 52 with the adjusting bolt 53 , and the sealing of the cable core entering the barrel 2 is ensured by the deformation of the annular sealing plug 51 .

As shown in Figures 2 and 3, the above-mentioned cable end tray 49 is coaxially connected with a photoelectric unit clamp block, and the above-mentioned photoelectric unit clamp block has a split mirror image setting and is connected as a whole. , the first clamping block 54 and the second clamping block 55 are detachably fixedly connected by fasteners (including screws, bolts, etc.), and the end faces of the first clamping block 54 and the second clamping block 55 are provided with There is a semicircular optical unit perforation 56, the aperture of which is smaller than the outer diameter of the optical unit of the photoelectric composite cable; the first clip 54 and the second clip 55 are provided with electrical unit perforations 57, and the photoelectric composite cable The optical unit of the photoelectric composite cable enters the first connecting cavity 22 after passing through the optical unit perforation 56 , and the electric unit of the photoelectric composite cable enters the second connecting cavity 23 after passing through the electric unit perforating hole 57 .

During the process of the cable core of the composite cable at the cable end penetrating into the cylinder body 2, the optical unit and the electrical unit are separated on the photoelectric unit clamp block. The optical unit enters the first connection cavity 22 from the optical unit through hole 56, and the electrical unit penetrates from the electrical unit. 57 into the second connecting cavity 23. In the technical solution of this embodiment, the first clamping block 54 and the second clamping block 55, which are arranged in separate mirror images and are connected as a whole, are designed to cooperate, and the semicircular optical unit with a radius smaller than the outer diameter of the optical unit is designed to perforate, the first clamping After the block 54 and the second clamping block 55 are fixedly connected, the optical unit through hole 56 clamps the separated optical unit, which can prevent the optical unit from detaching from the fiber slot 28 due to vibration during the use of the connector.

The above structural joints, the installation and connection process is as follows:

(1) Fixing the steel wire: first put the outer vertebral body 42, the cylinder body 2, the first sealing ring, and the second sealing ring on the cable, pass the dissected sub-cable through the inner vertebral body 41, and the steel wire of the outer armor layer of the cable end Insert it into the blind hole of the inner vertebral body 41 in an orderly manner, and push it to the deepest part of the blind hole, reserve enough length for the cable end, so that the optical unit can extend into the straight groove of the photoelectric connection plate 21, and the head does not protrude in the groove , both the inner vertebral body 41 and the outer vertebral body 42 have a hexagonal structure, which is convenient for installation, and the outer vertebral body 42 is tightened so that the tapered surfaces of the two vertebral bodies are tightly pressed against the steel wire;

(2) Sub-cable sealing: The sealing of the sub-cable is realized by the deformation of the annular sealing plug 51. The annular sealing plug 51, the ferrule 52 and the cable end tray 49 are sequentially placed on the sub-cable, and the cable end tray 49 is fixed by bolts. On the inner vertebral body 41, tighten the adjusting bolt 53 of the cable end tray 49, and press the ferrule 52 through the adjusting bolt 53 so that the annular sealing plug 51 is inserted inward, and the annular sealing plug 51 is deformed during this process, and the Realize effective sealing at the sub-cable;

(3) Photoelectric unit connection: the photoelectric connection plate 21 is stuck in the draw-in groove 50 of the cable end tray 49 and fixed by screw connection. Before carrying out the photoelectric connection, at first the second plug 6 is installed on the equipment, the optical unit at the equipment end and The electrical unit is drawn out from the shaft hole 61 at the equipment end. The electric unit coming out from the sub-cable end and the equipment end is fixed on the photoelectric connection plate 21 through the leather wire fixing clip 8, and the wires drawn from the sub-cable end and the equipment end are connected by the wire connection terminal 27, and the wire connection terminal 27 is fixed by the terminal fixing clip On the photoelectric splice plate 21. The optical fiber protrudes from the port of the optical unit into the oval-shaped fiber slot 28 of the photoelectric splicing tray 21, fixes the fiber sheath protruding from the equipment end to one end of the photoelectric splicing tray 21 through the leather cord fixing clip, and connects the optical fiber through the optical fiber connection terminal 26. , here are two fiber splicing methods:

① Welding: Connect two bare fibers through a welding machine, and then wrap them with heat shrinkable tubes. The fusion-spliced optical fiber has low attenuation and high reliability. After splicing, it is wrapped with a heat-shrinkable tube, and the optical fiber connector occupies a small space, which is conducive to further reducing the size of the entire connector.

②Mechanical docking: directly splice two bare fiber interfaces through cold splices. The connection of mechanical docking is simple and easy to operate, the cost is low, and the length of optical fiber consumed for connection is short.

(4) Cavity sealing: place the first sealing ring previously set on the cable in the first ring groove, the second sealing ring in the second ring groove, and pass the bolt between the cylinder body 2 and the inner vertebral body 41 Connection, the first sealing ring is pressed tightly in the first ring groove, and the second sealing ring is pressed tightly in the second ring groove. Similarly, the cylinder 2 and the second joint 6 are connected by bolts, through the first seal The sealing function of the ring, the second sealing ring and the annular sealing plug meets the requirements of the internal sealing of the cylinder body 2.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention shall be determined by the claims.

Claims (10)

1. a kind of optoelectronic composite cable quick coupling, including cylinder, co-axial seal be connected to the cylinder both ends the first connector and Second connector, it is characterised in that：It is equipped with photoelectricity connecting disk in the cylinder, the both ends of the photoelectricity connecting disk are connected to the On one connector and the second connector, the photoelectricity connecting disk separates the cylinder into the first connecting chamber and second and connects chamber, the photoelectricity Connecting disk is equipped with light unit successive trays, and the light unit successive trays have the mounting portion of curved-surface structure, the mounting portion It is equipped with optical fiber connecting terminal；Wire connection terminal is additionally provided on the photoelectricity connecting disk, the wire connection terminal setting exists Second connects intracavitary.

2. optoelectronic composite cable quick coupling as described in claim 1, it is characterised in that：It is set in the disk of the fibre junction disk There is disk fibre slot.

3. optoelectronic composite cable quick coupling as described in claim 1, it is characterised in that：First connector includes coaxially setting It sets and the inside and outside interior centrum being arranged and outer centrum, the center of the interior centrum and outer centrum is equipped with cable-end axis hole, the cable-end Axis hole is connected to cylinder, is equipped between the interior centrum and outer centrum and wears a gap；It is located at the end for wearing a gap on the interior centrum End is equipped with several blind holes, and the blind hole is uniformly distributed for one week along the radial direction of interior centrum.

4. optoelectronic composite cable quick coupling as claimed in claim 3, it is characterised in that：The end of the interior centrum has opposite The first flange face and second flange face of setting, the first flange face are equipped with the first annular groove, are equipped in first annular groove First sealing ring, the cylinder are sealedly connected on first flange face, and cable-end pallet is coaxially connected on the second flange face, The photoelectricity connecting disk is fixed on cable-end pallet.

5. optoelectronic composite cable quick coupling as claimed in claim 4, it is characterised in that：The circumferencial direction of the cable-end pallet is set There are card slot, the end of the photoelectricity connecting disk to be fastened in the card slot.

6. optoelectronic composite cable quick coupling as claimed in claim 4, it is characterised in that：The center in the second flange face is equipped with The center of first seal groove, the cable-end pallet is equipped with the second seal groove, and the cable-end pallet is coaxially connected in second flange face First seal groove and the second seal groove merge to form seal chamber after upper, and ring sealing plug is equipped in the seal chamber.

7. optoelectronic composite cable quick coupling as claimed in claim 6, it is characterised in that：The ring packing is coaxially connected beyond the Great Wall There is cutting ferrule；The cable-end pallet is equipped with adjusting bolt, and the adjusting bolt abuts the cutting ferrule.

8. optoelectronic composite cable quick coupling as claimed in claim 4, it is characterised in that：It is coaxially connected on the cable-end pallet Photovoltaic element fixture block, the photovoltaic element fixture block has seperated mirror image setting and the first fixture block being connected as one and second presss from both sides Block is equipped with semicircle light unit perforation, the light unit on the end face that both first fixture block and the second fixture block are connected The aperture of perforation is less than the outer diameter of optoelectronic composite cable light unit；Electric unit is equipped on first fixture block and the second fixture block to wear Hole, the light unit of optoelectronic composite cable enter first after light unit is pierced by and connect chamber, and the electric unit of optoelectronic composite cable is through electricity Unipunch enters second after being pierced by and connects chamber.

9. optoelectronic composite cable quick coupling as described in claim 1, it is characterised in that：The center of second connector, which is equipped with, to be connected There is third flange face, the third flange face to be equipped with second for the end of the equipment end axis hole of logical cylinder, second connector Annular groove, second annular groove is interior to be equipped with the second sealing ring, and the cylinder is sealedly connected on third flange face.

10. optoelectronic composite cable quick coupling as claimed in claim 9, it is characterised in that：The third flange face is equipped with limit Position slot, the end of the cable-end pallet is fastened in the limiting slot.