CN105305112B - For connecting the attachment means of the first and second optical electrical hybrid cables - Google Patents

Abstract

The invention discloses a connecting device used for connecting first and second photoelectric hybrid cables. The first optical-electrical hybrid cable has a first power cable and a first optical fiber containing tube for containing optical fibers, and the second optical-electrical hybrid cable has a second power cable and a second optical fiber containing tube for containing optical fibers. The connecting device includes: an optical fiber containing tube connecting assembly, used to butt together the first and second optical fiber containing tubes; and a power cable joint, used to electrically connect the first and second power cables together. In the present invention, the fiber containing tubes of the first and second optical hybrid cables are butted together through the fiber containing tube connection assembly, and the entire optical fiber passes through the two fiber containing tubes that need to be connected continuously, thereby realizing two Optical connection of an optical-electrical hybrid cable. Therefore, the optical connection between two optical-electrical hybrid cables can be realized conveniently and quickly. In addition, the connecting device of the present invention is simple in structure, easy to use, and low in cost.

Description

Connecting device for connecting first and second optoelectronic hybrid cables

technical field

The invention relates to a connection device for connecting a first photoelectric hybrid cable and a second photoelectric hybrid cable.

Background technique

In some special applications, it is necessary to use optical-electrical hybrid cables, ie, cables with both power cables and optical fibers. For the connection between this kind of photoelectric hybrid cables, the applicant of the present application has proposed a technical solution before, in which, the connection between the power cables of two photoelectric hybrid cables is realized by using the usual crimping method, and using The optical fiber junction box realizes the optical connection between the optical fibers of two optical-electrical hybrid cables. When connecting the optical fibers of two optical-electrical hybrid cables, it is more complicated. It is necessary to connect the end of the optical fiber of each optical-electrical hybrid cable to an optical fiber connector, and then the optical fiber connectors on the two optical fibers are connected to each other through optical fiber adapters. Butt together, so that the optical connection between the optical fibers of the two optical hybrid cables can be realized. In another technical solution proposed by the applicant of this application, the optical connection between the optical fibers of the two optical-electrical hybrid cables is realized by fusion splicing. However, the fusion splicing method also has complex processes and high costs. because it needs many components such as fiber reel, fiber reel, heat shrinkable tube and so on.

In the foregoing technical solutions, a dedicated optical fiber junction box is required to realize the optical connection between the optical fibers of the two optical-electrical hybrid cables, resulting in complex structure, difficult operation and high cost.

Contents of the invention

The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and deficiencies in the prior art.

An object of the present invention is to provide a connecting device for connecting a first optical-electrical hybrid cable and a second optical-electrical hybrid cable, which has a simple structure, convenient operation, and low cost.

According to one aspect of the present invention, there is provided a connecting device for connecting a first optical-electrical hybrid cable and a second optical-electrical hybrid cable, the first optical-electrical hybrid cable has a first power cable and a The first optical fiber containing tube, the second optical-electrical hybrid cable has a second power cable and a second optical fiber containing tube for containing optical fibers. The connecting device includes: an optical fiber containing tube connection assembly, used to connect the first optical fiber containing tube and the second optical fiber containing tube together; and a power cable joint, used to connect the first power cable to the The second power cables are electrically connected together. The optical fiber storage tube connection assembly includes: an intermediate transfer tube, the diameter of which is larger than the diameter of the first optical fiber storage tube and the second fiber storage tube; a first reducing pipe joint with a smaller diameter a first port with a larger diameter and a second port with a larger diameter; and a second reducer fitting with a first port with a smaller diameter and a second port with a larger diameter. Wherein, the first optical fiber containing tube is inserted and connected to the first port of the first reducing tube joint, the second optical fiber containing tube is inserted and connected to the first port of the second reducing tube joint, and the The two ends of the intermediate transition tube are respectively inserted and connected to the second ports of the first reducing tube joint and the second reducing tube joint, and the optical fiber passes continuously through the first optical fiber containing tube and the second port that need to be connected. Fiber holding tube.

According to an exemplary embodiment of the present invention, the first optical-electrical hybrid cable and the second optical-electrical hybrid cable respectively include one or more power cables; and the connecting device includes one or more power cable joints , for electrically connecting the power cables of the first optical-electrical hybrid cable and the second optical-electrical hybrid cable together.

According to another exemplary embodiment of the present invention, the first optical-electrical hybrid cable and the second optical-electrical hybrid cable respectively include one or more optical fiber containing tubes; and the connecting device includes one or more optical fiber The accommodating tube connection assembly is used to respectively butt together the optical fiber accommodating tubes of the first optical-electrical hybrid cable and the second optical-electrical hybrid cable.

According to another exemplary embodiment of the present invention, all the power cables in the first optical-electrical hybrid cable or the second optical-electrical hybrid cable are wrapped in a metal shielding layer, and the metal shielding layer The gap between the layer and the power cable is filled with insulating filling material; and the optical fiber containing tube in the first optoelectronic hybrid cable or the second optoelectronic hybrid cable is embedded in the insulating filling material.

According to another exemplary embodiment of the present invention, the first photoelectric hybrid cable and the second photoelectric hybrid cable respectively include three power cables and three optical fiber containing tubes; the connecting device includes three power cables The cable joint and the three optical fiber containing tubes are connected to the assembly; and the three power cables in the first or the second optical-electrical hybrid cable are intertwined and their outer circles are tangent to each other.

According to another exemplary embodiment of the present invention, the first reducing pipe joint includes: a first main body having a first port and a second port opposite to the first port; The first elastic barb on the inner wall of the first port of the first body part and the second elastic barb on the inner wall of the second port of the first main body part, wherein the first optical fiber containing tube and the The intermediate transition tubes are respectively inserted into the first body part from the first port and the second port of the first body part; the first elastic barb is configured to only allow the first fiber containing tube to The inside of a main body part is inserted and cannot be pulled out toward the outside of the first main body part; Pull out the outside of the main body.

According to another exemplary embodiment of the present invention, the second reducing pipe joint includes: a second main body having a first port and a second port opposite to the first port; The first elastic barb on the inner wall of the first port of the second body part and the second elastic barb on the inner wall of the second port of the second main body part, wherein the second optical fiber containing tube and the The intermediate transition tube is inserted into the second main body from the first port and the second port of the second main body respectively; the first elastic barb of the second main body is configured to allow only the second The fiber containing tube is inserted toward the inside of the second body part and cannot be pulled out toward the outside of the second body part; and the second elastic barb part of the second body part is configured to only allow the intermediate transition tube The inside of the main body part is inserted and cannot be pulled out toward the outside of the second main body part.

According to another exemplary embodiment of the present invention, the first/second reducing pipe joint further includes: a first movable end piece installed in the first port of the first/second main body , has a first pressing portion facing the first elastic barb, and the first movable end piece can move from a first position for releasing the first elastic barb to pressing down the first elastic barb In the second position of the barb, when the first movable end piece is in the first position, the first elastic barb is in a released state and only allows the first/second fiber containing tube to move toward the first The inside of the first/second body part is inserted and cannot be pulled out toward the outside of the first/second body part, and when the first movable end piece is in the second position, the first elastic barb is held by the first a pressing part presses down and allows the first/second fiber containing tube to be pulled out toward the outside of the first/second body part; and a second movable terminal piece mounted on the first/second body part In the second port of the second elastic barb, there is a second pressing portion facing the second elastic barb, and the second movable end piece can move from the first position for releasing the second elastic barb to pressing down In the second position of the second elastic barb, when the second movable end piece is in the first position, the second elastic barb is in a released state and only allows the intermediate transition tube to move toward the first The inside of the first/second body part is inserted and cannot be pulled out toward the outside of the first/second body part, and when the second movable end piece is in the second position, the second elastic barb is held by the first The two pressing parts press down and allow the intermediate transition tube to be pulled out toward the outside of the first/second main body.

According to another exemplary embodiment of the present invention, the first/second reducing pipe joint further includes: a first elastic sealing ring accommodated in the inner wall of the first port of the first/second main body part , for sealing the mating interface between the first/second fiber containing tube inserted into the first/second body part and the first/second body part; and accommodated in the first/second The second elastic sealing ring in the inner wall of the second port of the main body is used to seal the mating interface between the intermediate transfer pipe inserted into the first/second main body and the first/second main body.

According to another exemplary embodiment of the present invention, the first/second reducing pipe joint further includes: a first gasket provided on the inner wall of the first port of the first/second main body, The first spacer pad is on the side of the first elastic barb facing the inner wall of the first/second body portion for preventing excessive deformation or damage of the first elastic barb; and A second gasket provided on the inner wall of the second port of the first/second body part, the second gasket pads on the second elastic barb facing the first/second One side of the inner wall of the main body is used to prevent excessive deformation or damage of the second elastic barb.

According to another exemplary embodiment of the present invention, the power cable connector includes: a crimping tube for connecting the conductor core of the first power cable in the first photoelectric hybrid cable to the second photoelectric hybrid cable The conductor cores of the second power cable in the cable are crimped together; and an insulating jacket is used to cover the outside of the crimping tube and the insulation layer of the first and second power cables, thereby restoring the first and second power A section of cable from which the insulation has been stripped.

According to another exemplary embodiment of the present invention, it further includes: a layer of waterproof tape wrapped around the connection between the first optical-electrical hybrid cable and the second optical-electrical hybrid cable, for containing the optical fiber The pipe connection assembly and the power cable joint are hermetically wrapped therein.

According to another exemplary embodiment of the present invention, the first reducing pipe joint and the second reducing pipe joint are configured to be identical.

In the connecting device according to various embodiments of the present invention, the first optical fiber receiving tube of the first optical-electrical hybrid cable and the second optical fiber receiving tube of the second optical-electrical hybrid cable are butted together through the optical fiber receiving tube connection assembly, and The whole optical fiber continuously passes through the first optical fiber containing tube and the second optical fiber containing tube which need to be connected, thereby realizing the optical connection of two optical-electrical hybrid cables. The connecting device of the present invention can conveniently and quickly realize the optical connection between two photoelectric hybrid cables only by using the optical fiber containing tube connection assembly, without using optical fiber connectors, adapters, fiber reels, fiber reels, heat Therefore, the connection device of the present invention is simple in structure, easy to use, and low in cost.

Other objects and advantages of the present invention will be apparent from the following description of the present invention with reference to the accompanying drawings, and may help to provide a comprehensive understanding of the present invention.

Description of drawings

1 shows a schematic diagram of a first optical-electrical hybrid cable and a second optical-electrical hybrid cable and a connecting device for connecting the first optical-electrical hybrid cable and the second optical-electrical hybrid cable according to a first exemplary embodiment of the present invention. ;

Figure 2a shows a cross-sectional view of the first or second optoelectronic hybrid cable according to a first exemplary embodiment of the present invention, wherein optical fibers are not inserted into the first or second optoelectronic hybrid cable in the fiber holding tube;

Figure 2b shows a cross-sectional view of the first or second optoelectronic hybrid cable according to the first exemplary embodiment of the present invention, wherein an optical fiber has been inserted into the first or second optoelectronic hybrid cable in the fiber holding tube;

Fig. 3 a shows the schematic diagram of the first reducing pipe joint and the second reducing pipe joint of the optical fiber containing tube connection assembly for butt jointing the first optical fiber containing tube and the second optical fiber containing tube of the connecting device in Fig. 1;

Fig. 3b shows a schematic diagram of the first fiber containing tube and the second fiber containing tube in Fig. 1 being connected to each other through the fiber containing tube connection assembly;

4 shows a schematic diagram of a first optical-electrical hybrid cable and a second optical-electrical hybrid cable and a connecting device for connecting the first optical-electrical hybrid cable and the second optical-electrical hybrid cable according to a second exemplary embodiment of the present invention. ;

5 shows a schematic diagram of a first optical-electrical hybrid cable and a second optical-electrical hybrid cable and a connecting device for connecting the first optical-electrical hybrid cable and the second optical-electrical hybrid cable according to a third exemplary embodiment of the present invention ;

6 shows a schematic diagram of a first optical-electrical hybrid cable and a second optical-electrical hybrid cable and a connecting device for connecting the first optical-electrical hybrid cable and the second optical-electrical hybrid cable according to a fourth exemplary embodiment of the present invention. ;with

Figures 7a-7f are schematic diagrams showing various steps of optically connecting the first optical-electrical hybrid cable and the second optical-electrical hybrid cable together.

detailed description

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals designate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, but should not be construed as a limitation of the present invention.

In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

According to a general technical idea of the present invention, a connection device is provided for connecting a first photoelectric hybrid cable and a second photoelectric hybrid cable, the first photoelectric hybrid cable has a first power cable and a The first optical fiber containing tube for the optical fiber, the second optical-electrical hybrid cable has the second power cable and the second optical fiber containing tube for containing the optical fiber. The connecting device includes: an optical fiber containing tube connection assembly, used to connect the first optical fiber containing tube and the second optical fiber containing tube together; and a power cable joint, used to connect the first power cable to the The second power cables are electrically connected together. The optical fiber storage tube connection assembly includes: an intermediate transfer tube, the diameter of which is larger than the diameter of the first optical fiber storage tube and the second fiber storage tube; a first reducing pipe joint with a smaller diameter a first port with a larger diameter and a second port with a larger diameter; and a second reducer fitting with a first port with a smaller diameter and a second port with a larger diameter. Wherein, the first optical fiber containing tube is inserted and connected to the first port of the first reducing tube joint, the second optical fiber containing tube is inserted and connected to the first port of the second reducing tube joint, and the The two ends of the intermediate transition tube are respectively inserted and connected to the second ports of the first reducing tube joint and the second reducing tube joint, and the optical fiber passes continuously through the first optical fiber containing tube and the second port that need to be connected. Fiber holding tube.

1 shows a first optical-electrical hybrid cable 100 and a second optical-electrical hybrid cable 200 according to a first exemplary embodiment of the present invention and a device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200. A schematic diagram of the connecting device; FIG. 2a shows a cross-sectional view of the first optical-electrical hybrid cable 100 or the second optical-electrical hybrid cable 200 according to a first exemplary embodiment of the present invention, wherein the optical fiber 130 is not inserted into the first optical-electrical hybrid cable cable 100 or the second optical hybrid cable 200 in the fiber containing tube 120, 220; FIG. A cross-sectional view, wherein the optical fiber 130 has been inserted into the optical fiber containing tube 120 , 220 of the first optical-electrical hybrid cable 100 or the second optical-electrical hybrid cable 200 .

As shown in FIG. 2a and FIG. 2b, in an exemplary embodiment of the present invention, the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 have the same internal structure, but the present invention is not limited to FIG. According to the illustrated embodiment, the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 may also have different internal structures.

Please continue to refer to FIG. 2 a and FIG. 2 b , in the illustrated embodiment, the first optical-electrical hybrid cable 100 includes three first power cables 110 and three first optical fiber receiving tubes 120 . As clearly shown in Fig. 2a, the three first power cables 110 are intertwined, and the outer circles of the three first power cables 110 are tangent to each other. A layer of first metal shielding layer 102 is wound outside the three first power cables 110 , and the gap between the first metal shielding layer 102 and the three first power cables 110 is filled with insulating filling material 101 . When manufacturing the first optical-electrical hybrid cable 100 , three first optical fiber containing tubes 120 are buried in the insulating filling material 101 .

In the embodiment shown in FIG. 2a, the first optical-electrical hybrid cable 100 further includes a first insulating layer 103 wrapped outside the first metal shielding layer 102, and a second metal shield wrapped outside the first insulating layer 103 layer 104 and an outer sheath layer 105 wrapping the outside of the second metal shielding layer 104 . As shown in Fig. 2a, each first power cable 110 includes a conductor core 111, an insulating material layer (not shown) wrapped outside the conductor core 111, and a metal shielding layer (not shown) wrapped outside the insulating material layer.

Similarly, in the embodiment shown in FIGS. 2 a and 2 b , the second optical-electrical hybrid cable 200 includes three second power cables 210 and three second optical fiber receiving tubes 220 . As clearly shown in Fig. 2a, the three second power cables 210 are intertwined, and the outer circles of the three second power cables 210 are tangent to each other. A layer of first metal shielding layer 202 is wound outside the three second power cables 210 , and the gap between the first metal shielding layer 202 and the three second power cables 210 is filled with insulating filling material 201 . When manufacturing the second optical-electrical hybrid cable 200 , three second optical fiber containing tubes 220 are buried in the insulating filling material 201 .

In the embodiment shown in FIG. 2a, the second optical-electrical hybrid cable 200 further includes a first insulating layer 203 wrapped outside the first metal shielding layer 202, and a second metal shield wrapped outside the first insulating layer 203 layer 204 and an outer sheath layer 205 wrapping the outside of the second metal shielding layer 204 . As shown in Fig. 2a, each second power cable 210 includes a conductor core 211, an insulating material layer (not shown) wrapped outside the conductor core 211, and a metal shielding layer (not shown) wrapped outside the insulating material layer.

Please continue to refer to FIG. 1 , in the illustrated embodiment, the connecting device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 mainly includes three power cable joints 400 and three optical fiber receiving tube connections. components. The three power cable connectors 400 respectively electrically connect the three first power cables 110 of the first optoelectronic hybrid cable 100 and the three second power cables 210 of the second optoelectronic hybrid cable 200 together. The three fiber receiving tube connection assemblies connect the three first fiber receiving tubes 120 of the first optical-electric hybrid cable 100 and the three second optical fiber receiving tubes 220 of the second optical-electric hybrid cable 200 to each other.

In an exemplary embodiment of the present invention, if the total length of the first photoelectric hybrid cable 100 and the second photoelectric hybrid cable 200 is less than or equal to a preset value (the preset value can be determined according to actual conditions), for example , when the length is less than or equal to 500m, the optical fiber 130 can be inserted into the first fiber containing tube 120 and the second fiber containing tube 220 after the first fiber containing tube 120 and the second fiber containing tube 220 have been butted together, thereby realizing An optical connection between the first optical-electrical hybrid cable 100 and the second optical-fiber hybrid cable 200 . In this way, the optical connection between the two cables 100, 200 can be conveniently realized without using the optical fiber junction box used in the prior art. However, if the total length of the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 is greater than a preset value, for example, when greater than 500m, the first optical fiber containing tube 120 and the second optical fiber containing tube 220 must be connected to each other. Before butting together, the optical fibers 130 are passed through the first optical fiber containing tube 120 and the second optical fiber containing tube 220 one by one, and this situation will be described in more detail later.

Fig. 3a shows the first reducing pipe joint 300 and the second reducing pipe joint 300' of the optical fiber containing pipe connection assembly 300 used to connect the first optical fiber containing pipe 120 and the second optical fiber containing pipe 220 of the connecting device in Fig. 1 3b shows a schematic diagram of the first fiber containing tube 120 and the second fiber containing tube 220 in FIG. 1 butted together through the fiber containing tube connection assembly.

As shown in Fig. 1, Fig. 3a and Fig. 3b, in an exemplary embodiment of the present invention, the optical fiber containing tube connection assembly mainly includes: an intermediate transition tube 230, a first reducing tube joint 300 and a second reducing tube Joint 300'. The diameter of the intermediate transition tube 230 is greater than the diameters of the first fiber receiving tube 120 and the second fiber receiving tube 220 . The first reducing pipe joint 300 has a first port with a smaller diameter and a second port with a larger diameter opposite to the first port. The second reducing pipe joint 300' has a first port with a smaller diameter and a second port with a larger diameter opposite to the first port.

Please continue to refer to FIG. 1, FIG. 3a and FIG. 3b. In the illustrated embodiment, the first reducing pipe joint 300 mainly includes: a first main body portion having a first port with a smaller diameter and A second port with a larger diameter opposite to the first port; and a first elastic barb 311 disposed on the inner wall of the first port and a second elastic barb 312 disposed on the inner wall of the second port.

In the illustrated embodiment, as shown in FIG. 1 , FIG. 3a and FIG. 3b , the first fiber receiving tube 120 and the intermediate transition tube 230 are inserted into the first main body from the first port and the second port, respectively. The first elastic barb member 311 is configured to only allow the first fiber receiving tube 120 to be inserted toward the inside of the first port of the first body part and not to be pulled out toward the outside of the first body part, and, similarly, the second elastic barb The barbed piece 312 is configured to only allow the intermediate transition tube 230 to be inserted toward the inside of the second port of the first body part and cannot be pulled out toward the outside of the first body part.

Please continue to refer to FIG. 3a and FIG. 3b. In the illustrated embodiment, the first variable diameter pipe joint 300 further includes a first elastic sealing ring 321 accommodated in the inner wall of the first port of the first main body portion and accommodated in the first port. A second elastic sealing ring 322 in the inner wall of the second port of the main body. The first elastic sealing ring 321 is used to seal the mating interface between the first fiber receiving tube 120 inserted into the first main body and the first main body. The second elastic sealing ring 322 is used to seal the mating interface between the intermediate transfer pipe 230 inserted into the first main body and the first main body.

Please continue to refer to FIG. 3a and FIG. 3b. In the illustrated embodiment, the first variable diameter pipe joint 300 further includes: a first gasket 331 disposed on the inner wall of the first port of the first main body part and disposed at the second A second gasket 332 on the inner wall of the first port of the main body. The first washer 331 is lined on the side of the first elastic barb 311 facing the inner wall of the first main body for preventing the first elastic barb 311 from excessive deformation or damage. The second washer 332 is lined on a side of the second elastic barb 312 facing the inner wall of the first main body, for preventing the second elastic barb 312 from being excessively deformed or damaged.

Please continue to refer to FIG. 3a and FIG. 3b. In the illustrated embodiment, the first variable diameter pipe joint 300 further includes: a first movable end piece 341 installed in the first port of the first main body part and installed in A second movable tip piece 342 in the second port of the first body portion.

In an exemplary embodiment of the present invention, the first movable end member 341 has a first pressing portion 3410 facing the first elastic barb member 311 . The first movable end member 341 can move from the first position for releasing the first elastic barb member 311 to the second position for pressing the first elastic barb member 311 . When the first movable end member 341 is in the first position, the first elastic barb member 311 is in a released state and only allows the first optical fiber receiving tube 120 to be inserted toward the inside of the first main body part, but not toward the inside of the first main body part. Externally unplugged. When the first movable end member 341 is located at the second position, the first elastic barb member 311 is pressed down by the first pressing portion 3410 and allows the first fiber receiving tube 120 to be pulled out toward the outside of the first main body.

Similarly, in an exemplary embodiment of the present invention, the second movable end member 342 has a second pressing portion 3420 facing the second elastic barb member 312 . The second movable end piece 342 can move from the first position for releasing the second elastic barb 312 to the second position for pressing the second elastic barb 312 . When the second movable end piece 342 is in the first position, the second elastic barbed piece 312 is in the released state and only allows the intermediate transfer tube 230 to be inserted toward the inside of the first main body part and cannot be pulled out toward the outside of the first main body part. out. When the second movable end piece 342 is at the second position, the second elastic barbed piece 312 is pressed down by the second pressing portion 3420 and allows the intermediate transfer tube 230 to be pulled out toward the outside of the first main body.

Please continue to refer to FIG. 1, FIG. 3a and FIG. 3b. In the illustrated embodiment, the second variable diameter pipe joint 300' mainly includes: a second main body having a first port with a smaller diameter and A second port with a larger diameter opposite to the first port; and a first elastic barb 311' disposed on the inner wall of the first port and a second elastic barb 312' disposed on the inner wall of the second port .

In the illustrated embodiment, as shown in FIG. 1 , FIG. 3a and FIG. 3b , the second fiber receiving tube 220 and the intermediate transition tube 230 are inserted into the second main body from the first port and the second port, respectively. The first elastic barb member 311' is configured to only allow the second fiber receiving tube 220 to be inserted toward the inside of the first port of the second body part and cannot be pulled out toward the outside of the second body part, and, similarly, the second The elastic barb 312' is configured to only allow the intermediate transition tube 230 to be inserted toward the inside of the second port of the second main body and cannot be pulled out toward the outside of the second main body.

Please continue to refer to FIG. 3a and FIG. 3b. In the illustrated embodiment, the second variable diameter pipe joint 300' further includes a first elastic sealing ring 321' accommodated in the inner wall of the first port of the second main body part and an accommodating A second elastic sealing ring 322' in the inner wall of the second port of the second body part. The first elastic sealing ring 321' is used to seal the mating interface between the second fiber receiving tube 220 inserted into the second main body and the second main body. The second elastic sealing ring 322' is used to seal the mating interface between the intermediate transfer pipe 230 inserted into the second main body and the second main body.

Please continue to refer to FIG. 3a and FIG. 3b. In the illustrated embodiment, the second reducing pipe joint 300' further includes: a first gasket 331' disposed on the inner wall of the first port of the second main body part and a set A second gasket 332' on the inner wall of the first port of the second body part. The first washer 331' is lined on the side of the first elastic barb 311' facing the inner wall of the second main body to prevent the first elastic barb 311' from excessive deformation or damage. The second washer 332' is lined on the side of the second elastic barb 312' facing the inner wall of the second main body to prevent the second elastic barb 312' from excessive deformation or damage.

Please continue to refer to FIG. 3a and FIG. 3b. In the illustrated embodiment, the second reducing pipe joint 300' further includes: a first movable end piece 341' installed in the first port of the second main body part and A second movable tip piece 342' is mounted in the second port of the second body portion.

In an exemplary embodiment of the present invention, the first movable end piece 341' of the second reduced-diameter pipe joint 300' has a first pressing portion 3410' and a second variable diameter facing the first elastic barbed piece 311'. The first movable end piece 341' of the diameter pipe joint 300' can move from the first position for releasing the first elastic barb 311' to the second position for pressing the first elastic barb 311'. When the first movable end piece 341' is in the first position, the first elastic barbed piece 311' is in a released state and only allows the second fiber receiving tube 220 to be inserted toward the inside of the second main body but not toward the second main body. Pull out the outside of the part. When the first movable end piece 341' is in the second position, the first elastic barbed piece 311' is pressed down by the first pressing part 3410' and allows the second fiber containing tube 220 to be pulled out toward the outside of the second main body .

Similarly, in an exemplary embodiment of the present invention, the second movable end piece 342' of the second reducing pipe joint 300' has a second pressing portion 3420' facing the second elastic barbed piece 312' . The second movable end member 342' can move from a first position for releasing the second elastic barb member 312' to a second position for pressing the second elastic barb member 312'. When the second movable end piece 342' is in the first position, the second elastic barbed piece 312' is in a released state and only allows the intermediate transfer tube 230 to be inserted toward the inside of the second main body but not toward the inside of the second main body. Externally unplugged. When the second movable end piece 342' is at the second position, the second elastic barbed piece 312' is pressed down by the second pressing part 3420' and allows the intermediate transfer tube 230 to be pulled out toward the outside of the second main body.

Please note that in the present invention, the fiber containing tube connection assembly is not limited to the illustrated embodiment, and may have other structures as long as it can connect the first fiber containing tube 120 and the second fiber containing tube 220 together. .

As shown in FIG. 1 , in an exemplary embodiment of the present invention, the power cable joint 400 may include a crimping tube (not shown) and an insulating jacket (not shown). The crimping tube is used to connect the conductor core 111 (see FIG. 2 ) of the first power cable 110 in the first photoelectric hybrid cable 100 and the conductor core 121 (see FIG. 2) Crimp each other together. The insulating jacket is placed over the crimping tube and the insulation of the first and second power cables 110 , 210 , thereby restoring the stripped section of insulation of the first and second power cables 110 , 210 .

Please note that in the present invention, the power cable connector can use any power cable connector in the prior art, as long as it can electrically connect two power cables together.

Although not shown in the figure, in an exemplary embodiment of the present invention, the connecting device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 further includes a layer of waterproof tape wrapped around the The connection between the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 is used to hermetically wrap the optical fiber containing tube connection assembly and the power cable connector 400 therein.

FIG. 4 shows a first optical-electrical hybrid cable 100 and a second optical-electrical hybrid cable 200 according to a second exemplary embodiment of the present invention and a device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200. Schematic diagram of the connection device.

In the embodiment shown in FIG. 4 , each of the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes three power cables 110 and two optical fiber receiving tubes 120 . Correspondingly, in the embodiment shown in FIG. 4 , the connecting device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes three power cable joints 400 and two optical fiber receiving tube connection assemblies.

The difference between the second embodiment shown in FIG. 4 and the first embodiment shown in FIG. 1 is mainly that each of the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes only two optical fiber receiving tubes 120, and the connecting device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 only includes two optical fiber receiving tube connection assemblies. Other than that, the second embodiment shown in FIG. 4 is the same as the first embodiment shown in FIG. 1 .

FIG. 5 shows a first optical-electrical hybrid cable 100 and a second optical-electrical hybrid cable 200 according to a third exemplary embodiment of the present invention and a device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200. Schematic diagram of the connection setup.

In the embodiment shown in FIG. 5 , each of the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes three power cables 110 and one optical fiber receiving tube 120 . Correspondingly, in the embodiment shown in FIG. 5 , the connecting device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes three power cable connectors 400 and one optical fiber receiving tube connection assembly 300 .

The difference between the third embodiment shown in FIG. 5 and the first embodiment shown in FIG. 1 is mainly that each of the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes only one optical fiber containing tube 120, and the connecting device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes only one optical fiber receiving tube connection assembly. Except for this, the third embodiment shown in FIG. 5 is the same as the first embodiment shown in FIG. 1 .

6 shows a first optical-electrical hybrid cable 100 and a second optical-electrical hybrid cable 200 according to a fourth exemplary embodiment of the present invention and a device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200. Schematic diagram of the connection setup.

In the embodiment shown in FIG. 6 , each of the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes a power cable 110 and an optical fiber receiving tube 120 . Correspondingly, in the embodiment shown in FIG. 6 , the connecting device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes a power cable joint 400 and a fiber receiving tube connection assembly.

The difference between the fourth embodiment shown in FIG. 6 and the first embodiment shown in FIG. 1 is mainly that each of the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes only one power cable 110 and an optical fiber containing tube 120, and the connection device for connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 only includes a power cable connector 400 and a fiber-optic containing tube connection assembly. Except for this, the third embodiment shown in FIG. 6 is the same as the first embodiment shown in FIG. 1 .

However, please note that the present invention is not limited to the illustrated embodiment, and each of the first optical-electrical hybrid cable and the second optical-electrical hybrid cable may include any number of power cables and any number of optical fiber containing tubes, correspondingly , the connection device may include any number of power cable joints and any number of fiber-optic-containing tube connection components. That is to say, the number of power cables and the number of optical fiber containing tubes included in each of the first optical-electrical hybrid cable and the second optical-electrical hybrid cable and the number of power cable joints of the connecting device and the number of optical fiber containing tube connection components The number can be determined according to actual needs, and is not limited to the embodiments shown in Figures 1 to 6, for example, each optical hybrid cable can include two, four or more power cables, and each The cable may include four, five or more fiber containing tubes. Correspondingly, the connection device may include two, four or more power cable joints and four, five or more fiber-optic containing tube connection assemblies.

It has been mentioned above that when the total length of the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 is greater than a preset value, for example, greater than 500m, it is necessary to connect the first optical fiber containing tube 120 and the second optical fiber containing tube 220 to each other. The optical fibers 130 are threaded into the first fiber containing tube 120 and the second fiber containing tube 220 one by one before being spliced together. This situation will be described in detail below with reference to Figures 7a-7f.

In an exemplary embodiment of the present invention, a method for connecting a first optical-electrical hybrid cable 100 and a second optical-electrical hybrid cable 200 is provided, the method comprising optically connecting the first optical-electrical hybrid cable 100 and The second optical-electrical hybrid cable 200 is electrically connected to the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 . In an exemplary embodiment of the present invention, optically connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes the following steps:

S110: Use the compressor 500 to blow a continuous optical fiber 130 through a first optical fiber containing tube 120 of the first optical-electrical hybrid cable 100, see FIG. 7b;

S120: Use the compressor 500 to blow the optical fiber 130 that has passed through the first optical fiber containing tube 120 through a second optical fiber containing tube 220 of the second optical-electrical hybrid cable 200, see FIG. 7d;

S130: remove the compressor 500, see Fig. 7e; and

S140: Use the fiber containing tube connection assembly 300, 230, 300' to butt together the first fiber containing tube 120 and the second fiber containing tube 220 that have penetrated the optical fiber 130, see Fig. 7f.

In an exemplary embodiment of the present invention, as shown in FIG. 7c, before step S120, the first optical fiber containing tube 120 is inserted from the first port of the first reducing pipe joint 300 and passed through the first reducing diameter Pipe joint 300, a second optical fiber containing tube 220 is inserted from the first port of the second reducing pipe joint 300' and passed through the second reducing pipe joint 300', and the intermediate transition tube 230 is put through the threaded Pass through the second optical fiber receiving tube 220 of the second reducing tube joint 300'.

The present invention is not limited to the illustrated embodiment. For example, in another embodiment of the present invention, before step S120, the intermediate transfer pipe 230 may also be threaded through the first reducing pipe joint 300. An optical fiber receiving tube 120, instead of being threaded on the second optical fiber receiving tube 220 that has passed through the second reducing tube joint 300'.

In another exemplary embodiment of the present invention, optically connecting the first optical-electrical hybrid cable 100 and the second optical-electrical hybrid cable 200 includes the following steps:

S210: Provide an optical fiber storage tube connection assembly, as shown in Figure 3a and Figure 3b, the fiber storage tube connection assembly includes a first reducing tube joint 300, a second reducing tube joint 300' and an intermediate transition tube 230, the first Each of the reducing tube joint 300 and the second reducing tube joint 300' has a first port with a smaller diameter and a second port with a larger diameter. 2. The diameter of the optical fiber containing tube 220;

S220: As shown in FIG. 7a and FIG. 7b, use the compressor 500 to blow a continuous optical fiber 130 through a first optical fiber containing tube 120 of the first optical-electrical hybrid cable 100;

S230: As shown in FIG. 7c, insert the first optical fiber containing tube 120 into which the optical fiber 130 has penetrated through the first port of the first reducing tube joint 300 and pass through the first reducing tube joint 300, and insert a first optical fiber containing tube 120 through the first reducing tube joint 300 The two optical fiber containing tubes 220 are inserted from the first port of the second reducing tube joint 300' and passed through the second reducing tube joint 300', and the intermediate transition tube 230 is inserted through the second reducing tube joint 300 ' on the second fiber containing tube 220;

S240: As shown in Figure 7d, use the compressor 500 to blow the optical fiber 130 that has passed through the first optical fiber containing tube 120 through the second photoelectric hybrid cable 200 that has passed through the second reducing tube joint 300' and the intermediate transition tube the second fiber containing tube 220 of 230;

S250: As shown in Figure 7e, remove the compressor 500; and

S260: As shown in FIG. 7f, move the first reducing pipe joint 300 , the second reducing pipe joint 300 ′ and the intermediate transition pipe 230 so that the first optical fiber containing tube 120 is connected to the first reducing pipe joint 300 . In the port, the second optical fiber containing tube 220 is connected to the first port of the second reducing tube joint 300', and the two ends of the intermediate transition tube 230 are respectively connected to the first reducing tube joint 300 and the second reducing tube joint 300' in the second port, so that the first fiber containing tube 120 and the second fiber containing tube 220 are butted together.

Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can improve them, and the structures described in various embodiments do not conflict with each other in terms of structure or principle Can be combined freely.

Although the present invention has been described with reference to the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation of the present invention.

While certain embodiments of the present general inventive concept have been shown and described, it will be understood by those of ordinary skill in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept. The scope is defined by the claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Furthermore, any element references in the claims should not be construed as limiting the scope of the invention.

Claims (13)

1. a kind of attachment means, described for connecting the first optical electrical hybrid cable (100) and the second optical electrical hybrid cable (200) There is the first power cable (110) and the first fiber containment for accommodating optical fiber (130) in first optical electrical hybrid cable (100) Manage (120), there is the second power cable (210) and for accommodating optical fiber (130) in second optical electrical hybrid cable (200) Second fiber containment pipe (220),

The attachment means include：

Fiber containment pipe coupling component (300,230,300 '), for by the first fiber containment pipe (120) and described second Fiber containment pipe (220) is docking together；With

Power cable connector (400), for first power cable (110) and second power cable (210) to be electrically connected It is connected together,

It is characterized in that：

The fiber containment pipe coupling component (300,230,300 ') includes：

Intermediate transit pipe (230), the diameter of the intermediate transit pipe (230) are more than the first fiber containment pipe (120) and institute State the diameter of the second fiber containment pipe (220)；

First reduction nipple (300), there is the less first port of diameter and the second port being relatively large in diameter；With

Second reduction nipple (300 '), there is the less first port of diameter and the second port being relatively large in diameter,

Wherein, the first fiber containment pipe (120) is inserted and is connected in the first port of the first reduction nipple (300), The second fiber containment pipe (220) is inserted and is connected in the first port of the second reduction nipple (300 '), and described The both ends of intermediate transit pipe (230) are inserted and are connected to the first reduction nipple (300) and the second reduction nipple respectively In the second port of (300 '), and

Wherein, the first fiber containment pipe (120) and the second fiber containment pipe that the optical fiber (130) is docked continuously across needs (220)。

2. attachment means according to claim 1, it is characterised in that：

First optical electrical hybrid cable (100) and second optical electrical hybrid cable (200) include one or more electricity respectively Power cable (110,210)；And

The attachment means include one or more power cable connectors (400), for by first optical electrical hybrid cable (100) it is electrically connected together with the power cable (110,210) of second optical electrical hybrid cable (200).

3. attachment means according to claim 2, it is characterised in that：

First optical electrical hybrid cable (100) and second optical electrical hybrid cable (200) include one or more light respectively Fibre accommodates pipe (120,220)；And

The attachment means include one or more fiber containment pipe coupling components (300,230,300 '), for by described first The fiber containment pipe of optical electrical hybrid cable (100) and second optical electrical hybrid cable (200) (120,220) is docked at one respectively Rise.

4. attachment means according to claim 3, it is characterised in that：

All power cables in first optical electrical hybrid cable (100) or second optical electrical hybrid cable (200) (110,210) are wrapped in layer of metal screen layer (102,202), and the metal screen layer and power cable (110, 210) insulation filling material (101,201) is filled with the space between；And

In first optical electrical hybrid cable (100) or second optical electrical hybrid cable (200) fiber containment pipe (120, 220) it is embedded in the insulation filling material (101,201).

5. attachment means according to claim 4, it is characterised in that：

First optical electrical hybrid cable (100) and second optical electrical hybrid cable (200) include three power cables respectively (110,210) and three fiber containment pipes (120,220)；

The attachment means include three power cable connectors (400) and three fiber containment pipe coupling components (300,230, 300’)；And

In first optical electrical hybrid cable (100) or second optical electrical hybrid cable (200) three power cables (110, 210) mutually wind and its is cylindrical mutually tangent.

6. attachment means according to claim 1, it is characterised in that first reduction nipple (300) includes：

First main part, there is first port and the second port relative with first port；With

The first flexible barbs part (311) for being arranged on the inwall of the first port of first main part and it is arranged on described The second flexible barbs part (312) on the inwall of the second port of one main part, wherein

The first fiber containment pipe (120) and the intermediate transit pipe (230) are respectively from the first end of first main part Mouth and second port are inserted in first main part；

The first flexible barbs part (311) is configured only to allow the first fiber containment pipe (120) towards the first main body The inside in portion is inserted and can not extracted towards the outside of the first main part；And

The second flexible barbs part (312) is configured only to allow the intermediate transit pipe (230) towards the first main part Inside is inserted and can not extracted towards the outside of the first main part.

7. attachment means according to claim 6, it is characterised in that second reduction nipple (300 ') includes：

Second main part, there is first port and the second port relative with first port；With

The first flexible barbs part (311 ') for being arranged on the inwall of the first port of second main part and it is arranged on described The second flexible barbs part (312 ') on the inwall of the second port of second main part, wherein

The second fiber containment pipe (220 ') and the intermediate transit pipe (230 ') are respectively from the first of second main part Port and second port are inserted in second main part；

First flexible barbs part (311 ') of second main part is configured only to allow the second fiber containment pipe (220 ') can not be extracted towards the inside insertion of the second main part towards the outside of the second main part；And

Second flexible barbs part (312 ') of second main part is configured only to allow intermediate transit pipe (230) direction The inside of second main part is inserted and can not extracted towards the outside of the second main part.

8. attachment means according to claim 7, it is characterised in that the first/second reduction nipple (300, 300 ') also include：

First movable terminal head (341,341 '), in the first port of the first/second main part, there is direction The first press section (3410,3410 ') of the first flexible barbs part (311,311 '), the first movable terminal head (341,341 ') can be moved to from the first position for discharging the first flexible barbs part (311,311 ') and press described first The second place of flexible barbs part (311,311 '), when the first movable terminal head (341,341 ') is located at first position When, the first flexible barbs part (311,311 ') is in release conditions and only allows the first/second fiber containment pipe (120,220) can not be extracted towards the inside insertion of first/second main part towards the outside of first/second main part, when When the first movable terminal head (341,341 ') is located at the second place, the first flexible barbs part (311,311 ') is by Press and allow the first/second fiber containment pipe (120,220) towards first/second in one press section (3410,3410 ') The outside extraction of main part；With

Second movable terminal head (342,342 '), in the second port of the first/second main part, there is direction The second press section (3420,3420 ') of the second flexible barbs part (312,312 '), the second movable terminal head (342,342 ') can be moved to from the first position for discharging the second flexible barbs part (312,312 ') and press described second The second place of flexible barbs part (312,312 '), when the second movable terminal head (342,342 ') is located at first position When, the second flexible barbs part (312,312 ') is in release conditions and only allows intermediate transit pipe (230) direction The inside insertion of first/second main part and can not be extracted towards the outside of first/second main part, when described second removable When termination part (342,342 ') is located at the second place, the second flexible barbs part (312,312 ') by the second press section (3420, 3420 ') press and allow the intermediate transit pipe (230) to be extracted towards the outside of first/second main part.

9. attachment means according to claim 8, it is characterised in that the first/second reduction nipple (300, 300 ') also include：

The first elastic seal ring (321,321 ') being contained in the inwall of the first port of the first/second main part, use In the first/second fiber containment pipe (120,220) that sealing is inserted in the first/second main part and the first/second Coordinates interface between main part；With

The second elastic seal ring (322,322 ') being contained in the inwall of the second port of the first/second main part, use Matching somebody with somebody between the intermediate transit pipe (230) and the first/second main part that sealing is inserted in the first/second main part Close interface.

10. attachment means according to claim 9, it is characterised in that the first/second reduction nipple (300, 300 ') also include：

The first pad (331,331 ') being arranged on the inwall of the first port of the first/second main part, described first Pad (331,331 ') pad the first flexible barbs part (311,311 ') the direction first/second main part it is interior The side of wall, for preventing the first flexible barbs part (311,311 ') too deformation or impaired；With

The second pad (332,332 ') being arranged on the inwall of the second port of the first/second main part, described second Pad (332,332 ') pad the second flexible barbs part (312,312 ') the direction first/second main part it is interior The side of wall, for preventing the second flexible barbs part (312,312 ') too deformation or impaired.

11. attachment means according to claim 1, it is characterised in that the power cable connector (400) includes：

Aluminium hydraulic pressed connecting pipe, for by the conductor cores (111) of the first power cable (110) in first optical electrical hybrid cable (100) Mutually it is crimped together with the conductor cores (121) of the second power cable (120) in second optical electrical hybrid cable (200)； With

Insulating coating, the outside of the insulating barrier for being enclosed on the aluminium hydraulic pressed connecting pipe and the first and second power cables (110,210), So as to recover one section of insulating barrier that the first and second power cables (110,210) are stripped.

12. attachment means according to claim 1, it is characterised in that also include：

One layer of water blocking tape, wrap up the company in first optical electrical hybrid cable (100) and second optical electrical hybrid cable (200) Meet place, for by the fiber containment pipe coupling component (300,230,300 ') and the power cable connector (400) hermetically It is wrapped in it.

13. attachment means according to claim 1, it is characterised in that

First reduction nipple (300) is configured to identical with second reduction nipple (300 ').