Submarine cable connecting device

Abstract

The invention relates to the technical field of submarine cable laying, and provides a submarine cable connecting device, which comprises a connector box internally provided with a fiber disc, the fiber disc is provided with a plurality of cable grooves, rollers are arranged along the extension direction of the cable grooves, and the rollers are tightly attached to a cable and are in rolling connection with the cable; and the monitoring assembly is arranged on the connector box and comprises a sensing module and a communication module, the sensing module is connected with the roller, and the sensing module acquires state information of the roller and sends the state information to the communication module. The cable detection assembly is arranged to detect the connection state of the cable in real time, and the cable passing assembly is arranged to fix the cable. When the cable slips, the sensing module can obtain the state information of the roller and send alarm information to the upper computer, so that maintenance personnel can maintain the cable in time conveniently. And the situation of communication interruption is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of submarine cable laying, and in particular to a submarine cable connection device. Background Art

[0002] The most commonly used connector box in submarine cable communication systems is the connector box, which uses special structural parts and tools to connect two sections of cables. It is used to maintain and repair various cables in submarine cable communication systems. Due to the particularity of the submarine environment, the connector box is required to have a long working life. In order to achieve high reliability, the connector box needs to consider the design of high water pressure resistance, hydrogen sealing, small size, and easy laying.

[0003] The existing submarine cable junction box has the following main drawbacks during use: the junction box has poor fixing force on the cable, which causes the cable to slowly slip out of the junction box under the influence of submarine currents, thereby causing the cable to be broken and causing communication failure.

[0004] It can be seen that the existing junction box is not reliable for fixing the submarine cable. The cable can easily slip out of the junction box, causing the cable to be broken and causing communication failure. Summary of the invention

[0005] The purpose of the present application is to provide a submarine cable connection device to solve the technical problem in the prior art that the submarine cable is not reliably fixed by the junction box, the cable is easy to slip out of the junction box, and then the cable is broken, resulting in communication failure.

[0006] Based on this, the present application provides a submarine cable splicing device, including: a joint box with a fiber reel inside, a plurality of cable grooves on the fiber reel, rollers are arranged along the extension direction of the cable grooves, the rollers are close to the cables and are rollingly connected to the cables; a monitoring component is arranged on the joint box, including a sensing module and a communication module, the sensing module is connected to the roller, the sensing module obtains the status information of the roller, and sends the status information to the communication module.

[0007] In a possible implementation, the communication module includes a signal generating device, and the signal generating device is used to send status information.

[0008] In a possible implementation, there are multiple rollers, which are respectively disposed at two ends of the cable groove.

[0009] In a possible implementation, a plurality of cable troughs are arranged in parallel.

[0010] In a possible implementation, the junction box includes: a shell, a side wall of which is provided with a wire passing hole; a wire passing assembly fixedly connected to the wire passing hole, including an inner fixing sleeve, an inner wall of which is provided with multiple annular protrusions, and the multiple annular protrusions are arranged in parallel.

[0011] In a possible implementation, the inner fixing sleeve includes two semi-ring plates, which are movably connected to form a cylindrical structure.

[0012] In a possible implementation, the cross section of the semi-ring plate is a semicircle.

[0013] In a possible implementation, the wire passing assembly also includes: a fixed tube, which is arranged in the wire passing hole and fixedly connected to the shell, and the outer wall of the fixed tube is provided with a thread; an external fixed sleeve, the inner wall of which is provided with a thread and is threadedly connected to the fixed tube; an external fixed sleeve cover is arranged on the outer surface of the inner fixed sleeve to tightly connect the external fixed sleeve, the inner fixed sleeve and the fixed tube.

[0014] In a possible implementation, the wire passing assembly further includes: a rubber ring fixed to the inner wall of the outer fixing sleeve, and the rubber ring is located at an end of the outer fixing sleeve away from the fixing tube.

[0015] In a possible implementation, the shell includes: a lower shell, a side wall of which is provided with a wire hole; and a top cover, which is fixedly connected to the lower shell to form a closed cavity.

[0016] The beneficial effects of a nailing device and nailing machine for tire anti-skid nails provided by the present application are at least that: the present application detects the cable connection status in real time by setting a cable detection component. When the cable slips off, the sensing module can immediately obtain the status information of the roller, and judge that the cable has slipped off according to the status information of the roller. The detection component sends an alarm message to the upper computer through the communication module, which is convenient for maintenance personnel to maintain in time, and avoid the cable slipping out of the joint box, causing the cable to be broken, and then causing communication interruption. The present application also sets a wire-passing component on the shell to fix the cable. A plurality of annular protrusions are set on the inner wall of the inner fixing sleeve of the wire-passing component. When the cable passes through the inner fixing sleeve and is tightened, the plurality of annular protrusions on the inner fixing sleeve can be pressed into the surface layer of the cable (i.e., the outer skin). The plurality of parallel annular protrusions have a long cable fixing distance, a large number of fixed nodes, and a good fixing effect, which can effectively prevent the cable from slipping off. It solves the technical problem in the prior art that the joint box is unreliable for fixing the submarine cable, and the cable is easy to slip off from the joint box, thereby causing the cable to be broken and causing communication failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a submarine cable connection device in an embodiment of the present application;

[0018] Figure 2 This is a bottom-up structural schematic diagram of a submarine cable connection device in an embodiment of the present application;

[0019] Figure 3 It is a schematic diagram of the exploded structure of a submarine cable connection device in an embodiment of the present application;

[0020] Figure 4 A cross-sectional view and a schematic cross-sectional structure diagram of a combination of a fixing tube and an inner fixing sleeve in a wire passing assembly in an embodiment of the present application;

[0021] Figure 5 The figure is a cross-sectional view of an external fixation sleeve and a schematic diagram of its cross-sectional structure in an embodiment of the present application.

[0022] In the figure: 100, joint box; 110, lower shell; 120, top cover; 130, fiber tray; 140, fixing tube; 150, semi-ring plate; 160, annular protrusion; 170, outer fixing sleeve; 171, rubber ring;

[0023] 200, monitoring component; 210, sensing module; 220, roller; 230, signal generating device. DETAILED DESCRIPTION

[0024] The technical solution of the present application will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0025] At present, in the submarine cable communication system, the submarine cable junction box is used to realize the connection between submarine cables and is an important component of the submarine cable communication system. The submarine cable junction box can be used for the connection between the same type of cables or different types of cables in the new submarine cable project, and can also be used for submarine cable maintenance to repair damaged submarine cables.

[0026] The existing submarine cable junction box has poor cable fixing strength during use, which causes the cable to slowly slip out of the junction box under the influence of submarine currents, thereby causing the cable to be broken and causing communication failures. It can be seen that the submarine cable junction box needs to have strong mechanical properties to ensure that the cable connection is stable and not broken.

[0027] Therefore, the present application provides a submarine cable splicing device, which is used for laying and maintaining submarine cables. Figure 1-5 As shown, it includes: a junction box 100 and a monitoring component 200. A cable fixing structure is arranged in the junction box 100. The monitoring component 200 monitors the cable slippage. If the cable slippage occurs, the monitoring component 200 can send an alarm message to the upper computer so that the maintenance personnel can perform maintenance in time to avoid the cable being pulled off and ensure that the communication is not interrupted.

[0028] Embodiment 1:

[0029] In one embodiment, a fiber tray 130 is provided in the joint box 100, and a plurality of cable grooves are provided on the fiber tray 130. A roller 220 is provided along the direction in which the cable grooves extend, and the roller 220 is closely attached to the cable and connected to the cable in a rolling manner. The monitoring component 200 is provided on the joint box 100, and includes a sensing module 210 and a communication module. The sensing module 210 is connected to the roller 220. The sensing module 210 obtains status information of the roller 220 and sends the status information to the communication module.

[0030] The fiber tray 130 is used to guide the cables to be arranged in the joint box 100 and to limit the fixed position of the cables. The fiber tray 130 is arranged in the joint box 100 so that the cables can be arranged neatly and orderly in the joint box 100. In the joint box 100, the connection between the same type of cables or different types of cables can be realized. The plurality of cable grooves provided on the fiber tray 130 can be provided according to the type of cables. The same type or different types of cables can be connected on the fiber tray 130.

[0031] The roller 220 is arranged along the direction in which the cable groove extends. During use, the cable is arranged in the cable groove, and the roller 220 is close to the cable. When the cable slides along the cable groove, the cable drives the roller 220 to rotate. The conversion of the roller 220 from a static state to a rotating state will be acquired by the sensing module 210. The state change of the roller 220 means that the cable has slipped, and the cable may slip off. Therefore, the monitoring component 200 can send the rolling data of the roller 220 to the upper computer through the communication module, and send an alarm message to prompt the maintenance personnel to perform maintenance in time to avoid further slipping of the cable and the accident of breaking the cable.

[0032] The sensing module 210 and the communication module included in the monitoring module can be connected via a data transmission cable. The sensing module 210 can be installed near the roller 220 to facilitate obtaining the state of the roller 220. In one embodiment, the sensing module 210 is directly connected to the roller 220, and the sensing module 210 and the roller 220 form a linkage. The movement of the roller 220 can be recorded by the sensing module 210. The sensing module 210 can collect whether the roller 220 moves through a sensor. The selection of the sensor can be selected according to the actual situation, and this application does not make specific restrictions.

[0033] The communication module can be set on the shell of the junction box 100, and the setting position of the communication module can be set according to the actual situation. The communication module is used to receive the status information of the roller 220 sent by the perception module 210, that is, the action information of the roller 220. After receiving the status information of the roller 220, the communication module can make a judgment on the status information to determine whether the submarine cable has slipped. Specifically, it can be judged according to the following method: if the status information of the roller 220 received by the communication module is continuous rotation, or intermittent rotation, and the rotation interval is within a certain time threshold, it can be judged that the submarine cable has slipped. If the status information of the roller 220 received by the communication module is rotation, but the rotation information is sporadic, and other rotation information of the roller 220 cannot be obtained within a certain time threshold, it is judged that the submarine cable has not slipped.

[0034] In this embodiment, the cable may be an optical fiber or other types of cables having the function of transmitting information.

[0035] Compared with the prior art, the embodiment of the present application detects the cable connection status in real time by setting a cable detection component. When the cable slips, the sensing module 210 can immediately obtain the status information of the roller 220, and judge that the cable has slipped according to the status information of the roller 220. The detection component sends an alarm message to the upper computer through the communication module, which is convenient for maintenance personnel to perform maintenance in time, and avoids the cable slipping out of the junction box 100, causing the cable to be broken, and then causing communication interruption. The technical problem that the junction box 100 is unreliable in fixing the submarine cable in the prior art, and the cable is easy to slip from the junction box 100, which causes the cable to be broken and communication failure occurs is solved.

[0036] In one embodiment, the communication module further includes a signal generating device 230 , and the signal generating device 230 is used to send status information of the roller 220 .

[0037] Specifically, when the status information of the roller 220 received by the communication module is continuous rotation, or intermittent rotation, and the rotation interval is within a certain time threshold, it is judged that the submarine cable has slipped. At this time, the signal generating device 230 will send an alarm signal to the host computer to prompt the maintenance personnel to perform maintenance in time. If the status information of the roller 220 received by the communication module is rotation, but the rotation information is sporadic, and other rotation information of the roller 220 cannot be obtained within a certain time threshold, it is judged that the submarine cable has not slipped. The signal generating device 230 does not send an alarm signal to the outside.

[0038] Compared with the prior art, the embodiment of the present application can monitor the status of the submarine cable in real time. Once an abnormal situation occurs, an alarm message can be sent to the host computer through the communication module in the first time, which is convenient for maintenance personnel to carry out timely maintenance and avoid the cable slipping out of the junction box 100 and causing the cable to be broken, thereby causing communication interruption.

[0039] In one embodiment, the number of the rollers 220 can be set to be multiple, and the multiple rollers 220 are respectively arranged at both ends of the cable groove.

[0040] In the case where multiple cables are connected in the junction box 100, rollers 220 can be respectively arranged at both ends of each cable slot, and each roller 220 is connected to a cable. Two cables are respectively arranged at both ends of a cable slot. The rollers 220 arranged at both ends of the cable slot can monitor the two cables connected on the fiber tray 130 respectively. When the cable at one end slips, it can be judged by the state change of the roller 220 connected thereto, thereby avoiding the occurrence of missed detection. It is understandable that the specifications of the two cables can be the same or different.

[0041] Accordingly, each roller 220 may be provided with a corresponding sensing module 210 for collecting the status information of a single cable. That is, the monitoring component 200 includes a communication module and a plurality of sensing modules 210. The status information of the roller 220 collected by each sensing module 210 will be sent to the communication module for judgment.

[0042] In one embodiment, a plurality of cable grooves are arranged in parallel on the fiber tray 130. The parallel cable grooves arranged on the fiber tray 130 can standardize the cable routing, avoid crossing and entanglement of adjacent cables, ensure that the cables connected in the cable grooves are evenly stressed, and prevent communication failures caused by the interaction of multiple cables causing multiple cables to slip off at the same time.

[0043] Several cable troughs can also be arranged in multiple groups, which can be parallel or non-parallel, but each group of cable troughs must be arranged in parallel to ensure that adjacent cables do not cross or tangle, so that the cables connected in the cable trough are evenly stressed, and communication failures caused by multiple cables interacting with each other and slipping off at the same time do not occur.

[0044] In one embodiment, the junction box 100 includes: a housing and a wire-passing assembly. The side wall of the housing is provided with a wire-passing hole. The wire-passing assembly is fixedly connected to the wire-passing hole and includes an inner fixing sleeve, and a plurality of annular protrusions 160 are provided on the inner wall of the inner fixing sleeve, and the plurality of annular protrusions 160 are arranged in parallel.

[0045] Specifically, the housing includes a lower housing 110 and a top cover 120. The wire hole is arranged on the side wall of the lower housing 110. The top cover 120 is fixedly connected to the lower housing 110 to form a closed cavity. The lower housing 110 has an installation space, and the fiber tray 130 and the cables are arranged in the installation space of the lower housing 110. In one embodiment, the housing is a rectangular housing. Accordingly, the lower housing 110 is a rectangular cube, and the top cover 120 is rectangular.

[0046] The wire-passing assembly is fixed to the wire-passing hole, preferably installed in the wire-passing hole, and the wire-passing assembly and the wire-passing hole are sealed. The wire-passing assembly is used for the cable to pass through, that is, the cable passage on the junction box 100. The cable can enter or extend from the junction box 100 through the wire-passing assembly, and is a connecting component between the junction box 100 and the cable.

[0047] The wire passing assembly includes a fixed tube 140, an inner fixed sleeve, and an outer fixed sleeve 170. The fixed tube 140 is fixedly connected to the wire passing hole, and preferably the fixed tube 140 is installed in the wire passing hole. The inner fixed sleeve is movably connected to the fixed tube 140, and the inner fixed sleeve abuts against the fixed tube 140 during installation. The outer fixed sleeve 170 is covered on the outer surface of the inner fixed sleeve so that the outer fixed sleeve 170, the inner fixed sleeve, and the fixed tube 140 are tightly connected.

[0048] In one embodiment, a plurality of annular protrusions 160 are provided on the inner wall of the inner fixing sleeve, and the plurality of annular protrusions 160 are provided in parallel. The cross-sectional shape of the annular protrusion 160 may be triangular, body-shaped, or other shapes. After the cable is fixed in the junction box 100, it extends to the outside of the junction box 100 through the wire-passing assembly, and the inner fixing sleeve is in direct contact with the cable and covers the surface of the cable. After the wire-passing assembly is fixed, the plurality of annular protrusions provided on the inner wall of the inner fixing sleeve are extruded by the outer fixing sleeve 170 and embedded in the outer skin of the cable, thereby enhancing the fixing effect of the cable connection device on the cable. The plurality of annular protrusions 160 have a long effective fixing distance for the cable, and a better fixing effect.

[0049] Compared with the prior art, the embodiment of the present application is provided with a wire-passing assembly on the housing to fix the cable, and a plurality of annular protrusions 160 are provided on the inner wall of the inner fixing sleeve of the wire-passing assembly. When the cable passes through the inner fixing sleeve and is tightened, the plurality of annular protrusions 160 on the inner fixing sleeve can be pressed into the surface layer of the cable (i.e., the outer skin). The plurality of parallel annular protrusions 160 have a long cable fixing distance, a large number of fixed nodes, a good fixing effect, and can effectively prevent the cable from slipping off. The technical problem in the prior art that the junction box 100 is unreliable in fixing the submarine cable and the cable is easy to slip off from the junction box 100, which leads to the cable being pulled off and a communication failure, is solved.

[0050] In one embodiment, the inner fixing sleeve can be composed of two semi-ring plates 150, and the two semi-ring plates 150 are movably connected to form a cylindrical structure. The cylindrical structure is the inner fixing sleeve. The inner fixing sleeve is set as two semi-ring plates 150 to facilitate the installation of cables. During use, after the cable passes through the fixed tube 140, two semi-ring plates 150 are covered on the outer surface of the cable, and the cable is pressed by the two semi-ring plates 150 so that the annular protrusion 160 is embedded in the outer skin of the cable to fix the cable. It should be noted that the semi-ring plates 150 need to use external force to press the cable. The two semi-ring plates 150 can be fastened by the outer fixing sleeve 170, so that the two semi-ring plates 150 are set on the inner wall of the outer fixing sleeve 170, and the pressure of the outer fixing sleeve 170 on the semi-ring plates 150 is used to achieve the annular protrusion 160 Embedded in the outer skin of the cable.

[0051] In one embodiment, the cross section of the semi-ring plate 150 is semicircular, so that the inner wall of the two semi-ring plates 150 is circular after being combined, so as to avoid the inner wall of the two semi-ring plates 150 being irregular in shape after being combined, which may cause excessive compression of the cable and damage to the cable core.

[0052] In addition to multiple annular protrusions 160, the inner wall of the semi-ring plate 150 is also provided with an inclined slope at the edge of the inner wall of the semi-ring plate 150. The slope enables the portion of the cable extending from the semi-ring plate 150 to have smooth contact, reduces the right-angle friction between the cable sheath and the edge of the inner fixing sleeve, and protects the cable sheath from damage.

[0053] In one embodiment, the fixing tube 140 is disposed in the wire hole and fixedly connected to the housing, wherein the outer wall of the fixing tube 140 is provided with threads. The inner wall of the outer fixing sleeve 170 is provided with threads, and the outer fixing sleeve 170 is connected to the fixing tube 140 through threads. It can be understood that the threads provided on the outer wall of the fixing tube 140 match the threads provided on the inner wall of the outer fixing sleeve 170, so as to realize the threaded connection between the outer fixing sleeve 170 and the fixing tube 140.

[0054] The outer fixing sleeve 170 is covered on the outer surface of the inner fixing sleeve so that the outer fixing sleeve 170 , the inner fixing sleeve and the fixing pipe 140 are tightly connected.

[0055] In one embodiment, an inner wall of the outer fixing sleeve 170 is provided with an internal thread, that is, a thread is provided on the inner wall where the outer fixing sleeve 170 and the fixing tube 140 are threadedly connected to satisfy the threaded connection relationship between the outer fixing sleeve 170 and the fixing tube 140. The inner wall of the rest of the outer fixing sleeve 170 is not provided with a thread and is a smooth inner wall.

[0056] In one embodiment, a plurality of protrusions are provided on a section of the inner wall of the outer fixing sleeve 170 which is not provided with threads. When the outer fixing sleeve 170 is sleeved on the outer surface of the inner fixing sleeve, the plurality of protrusions can exert greater pressure on the inner fixing sleeve, so that the annular protrusion 160 of the inner fixing sleeve is embedded in the outer skin of the cable, thereby increasing the pressure of the outer fixing sleeve 170 on the inner fixing sleeve and better fixing the cable.

[0057] In one embodiment, the wire passing assembly further includes: a rubber ring 171. The rubber ring 171 is fixed to the inner wall of the outer fixing sleeve 170, and the rubber ring 171 is located at one end of the outer fixing sleeve 170 away from the fixing tube 140. The rubber ring 171 is arranged on the inner wall of the outer fixing sleeve 170 to improve the sealing between the semi-ring plate 150 and the cable.

[0058] The present application sets a cable detection component to detect the cable connection status in real time. When the cable slips, the sensing module 210 can immediately obtain the status information of the roller 220, and judge that the cable has slipped according to the status information of the roller 220. The detection component sends an alarm message to the upper computer through the communication module, which is convenient for maintenance personnel to maintain in time, and avoid the cable slipping out of the junction box 100, causing the cable to be broken, and then causing communication interruption. The present application also sets a wire-passing component on the shell to fix the cable. A plurality of annular protrusions 160 are set on the inner wall of the inner fixing sleeve of the wire-passing component. When the cable passes through the inner fixing sleeve and is tightened, the plurality of annular protrusions 160 on the inner fixing sleeve can be pressed into the surface layer of the cable (i.e., the outer skin). The plurality of parallel annular protrusions 160 have a long fixing distance for the cable, a large number of fixed nodes, and a good fixing effect, which can effectively prevent the cable from slipping. It solves the technical problem in the prior art that the junction box 100 is unreliable in fixing the submarine cable, and the cable is easy to slip from the junction box 100, thereby causing the cable to be broken and causing communication failure.

[0059] Embodiment 2:

[0060] The submarine cable connection device comprises: a joint box 100 and a monitoring component 200 .

[0061] Among them, the junction box 100 includes a lower shell 110, a top cover 120 installed on the lower shell 110 by bolts, a fiber tray 130 installed on the inner bottom wall of the lower shell 110, a fixing tube 140 symmetrically fixed on both sides of the lower shell 110, a semi-ring plate 150 symmetrically arranged and hinged on the fixing tube 140, annular protrusions 160 fixed in an array on the inner wall of the semi-ring plate 150, and an outer fixing sleeve 170 threadedly engaged on the outer side of the semi-ring plate 150.

[0062] The lower shell 110 is used to install other components and protect the connection between the two optical cables. The top cover 120 is used to open the shell to facilitate connecting the two optical cables together. The fiber tray 130 is used to fix the connection between the optical cables to maintain the stability of the connection.

[0063] The fixing tube 140 is used to install the semi-ring plate 150. Two semi-ring plates 150 are arranged symmetrically, and the ends are hingedly installed on the fixing tube 140. The diameter of the semi-ring plate 150 is equal to the diameter of the optical cable. It is used to install the annular protrusion 160. The annular protrusion 160 is integrally fixed on the inner wall of the semi-ring plate 150 and is arranged in an array. When the semi-ring plate 150 is close to the outer surface of the optical cable, the annular protrusion 160 bites into the surface rubber of the optical cable to fix the optical cable and prevent it from loosening.

[0064] The outer fixing sleeve 170 is used to keep the semi-ring plate 150 close to the surface of the optical cable. An external thread is provided on the outer surface of the semi-ring plate 150, an external thread is provided on the outer surface of the fixing tube 140, and an internal thread is provided on the inner wall of the outer fixing sleeve 170. The internal thread is engaged with the external thread on the semi-ring plate 150 and the external thread on the fixing tube 140, which facilitates the installation and disassembly of the outer fixing sleeve 170.

[0065] Furthermore, the inner side surface of the end of the semi-ring plate 150 is arranged in an inclined surface, and a rubber ring 171 is fixed on the inner wall of the outer fixing sleeve 170. When the outer fixing sleeve 170 is screwed into the semi-ring plate 150, the rubber sleeve extends into the semi-ring plate 150 as the outer fixing sleeve 170 moves, and under the action of the inner side inclined surface of the end of the semi-ring plate 150, it is tightly attached to the surface of the optical cable, thereby ensuring the sealing at the fixing tube 140 and preventing seawater from entering the inner cavity of the lower shell 110 through the fixing tube 140.

[0066] The monitoring assembly 200 is used to monitor whether the optical cable slips, and includes a sensing module 210 symmetrically mounted on the lower shell 110 and extending into the inner cavity of the lower shell 110 , a roller 220 mounted on the sensing module 210 , and a signal generating device 230 mounted on the outer surface of the lower shell 110 .

[0067] The sensing module 210 is used to install the roller 220 and monitor whether the roller 220 rotates. The roller 220 is closely attached to the surface of the optical cable. When the optical cable slips out of the junction box, the optical cable drives the roller 220 to rotate while sliding. The sensing module 210 detects the rotation of the roller 220 and determines that the optical cable has slipped out. The signal generating device 230 is used to transmit the alarm signal to the host computer, so that the staff can carry out maintenance in time to avoid the optical cable slipping out of the junction box and breaking the optical fiber.

[0068] The working principle and use process of the present invention are as follows: when in use, the optical cable is passed through the fixing tube 140 and inserted into the inner cavity of the lower shell 110. After the two optical cables are connected, the semi-ring plate 150 is rotated to make the semi-ring plate 150 close to the surface of the optical cable, and the outer fixing sleeve 170 is inserted into the two semi-ring plates 150, and the outer fixing sleeve 170 is twisted. As the outer fixing sleeve 170 is twisted and inserted, the annular protrusion 160 in the semi-ring plate 150 is pressed into the surface rubber of the optical cable to fix the optical cable. The fixing distance is long and the nodes are many, which can prevent the optical cable from escaping from the junction box. When the outer fixing sleeve 170 is engaged, the outer fixing sleeve 170 is engaged. When it is closed on the outside of the fixing tube 140, the installation of the external fixing sleeve 170 is completed. At this time, the rubber ring 171 of the external fixing sleeve 170 is tightly attached to the surface of the optical cable under the action of the inclined surface of the inner side of the end of the semi-ring plate 150, so as to ensure the sealing of the fixing tube 140. At the same time, when the optical cable slips out of the junction box, the optical cable drives the roller 220 to rotate while sliding. The sensing module 210 detects the rotation of the roller 220, and can determine that the optical cable has slipped out. The alarm signal is transmitted to the host computer through the signal generating device 230, so that the maintenance personnel can carry out repairs in time.

[0069] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0070] In addition, the terms "above" and "below" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "above" and "below" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0071] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0073] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A submarine cable splicing device, characterized in that: include: A joint box is provided with a fiber tray inside, the fiber tray is provided with a plurality of cable grooves, and rollers are provided along the direction in which the cable grooves extend, the rollers are closely attached to the cables and are rollingly connected with the cables; A monitoring component is arranged on the joint box, and comprises a sensing module and a communication module. The sensing module is connected to the roller. The sensing module obtains status information of the roller and sends the status information to the communication module.

2. The submarine cable splicing device according to claim 1, characterized in that: The communication module comprises a signal generating device, and the signal generating device is used to send the status information.

3. The submarine cable splicing device according to claim 1, characterized in that: There are multiple rollers, which are respectively arranged at two ends of the cable groove.

4. The submarine cable splicing device according to claim 3, characterized in that: The plurality of cable troughs are arranged in parallel.

5. The submarine cable splicing device according to any one of claims 1 to 4, characterized in that: The joint box comprises: The shell has a side wall provided with a wire-passing hole; The wire passing assembly is fixedly connected to the wire passing hole and comprises an inner fixing sleeve. A plurality of annular protrusions are arranged on the inner wall of the inner fixing sleeve. The plurality of annular protrusions are arranged in parallel.

6. The submarine cable splicing device according to claim 5, characterized in that: The inner fixing sleeve comprises two semi-ring plates, which are movably connected to form a cylindrical structure.

7. The submarine cable splicing device according to claim 6, characterized in that: The cross section of the semi-ring plate is a semicircle.

8. The submarine cable splicing device according to claim 5, characterized in that: The line passing component also includes: A fixed tube, arranged in the wire-passing hole and fixedly connected to the housing, wherein the outer wall of the fixed tube is provided with threads; An outer fixing sleeve, the inner wall of which is provided with threads and is threadedly connected with the fixing pipe; The outer fixing sleeve cover is arranged on the outer surface of the inner fixing sleeve so that the outer fixing sleeve, the inner fixing sleeve and the fixing pipe are tightly connected.

9. The submarine cable splicing device according to claim 8, characterized in that: The over-the-line components also include: A rubber ring is fixed to the inner wall of the outer fixing sleeve, and the rubber ring is located at an end of the outer fixing sleeve away from the fixing tube.

10. The submarine cable splicing device according to claim 5, characterized in that: The housing comprises: The lower shell has a side wall provided with the wire-passing hole; The top cover is fixedly connected to the lower shell to form a closed cavity.

Images