CN216413882U

CN216413882U - Two-way submarine cable fixing equipment and system

Info

Publication number: CN216413882U
Application number: CN202122973645.1U
Authority: CN
Inventors: 李剑; 杨成; 朱宇
Original assignee: Fenghuo Ocean Network Equipment Co ltd; Fiberhome Telecommunication Technologies Co Ltd
Current assignee: Fenghuo Ocean Network Equipment Co ltd; Fiberhome Telecommunication Technologies Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-29
Anticipated expiration: 2031-11-30

Abstract

The application relates to a two-way submarine cable fixing device and system, and relates to the technical field of submarine optical communication. This two-way submarine cable fixed equipment includes fixed box and two sets of fixed subassemblies of locating fixed box both sides wall respectively, fixed box both sides wall all is equipped with the first cable through-hole of crossing, each fixed subassembly all includes a first mounting, first mounting subsides are located in the fixed box, and along keeping away from the first direction size grow gradually that crosses the cable through-hole that corresponds, be equipped with the second on the first mounting and cross the cable through-hole, all second cross the cable through-hole and first cross the cable through-hole and form the cable passageway, first mounting is used for when the submarine cable passes the cable passageway rather than inside armor steel wire continuous, with fixed submarine cable, first mounting still is used for transmitting the pulling force that the submarine cable received to fixed box. The application provides a two-way submarine cable fixed equipment has solved among the correlation technique and has become flexible easily at the bolt of long-time use in fixed submarine cable and lead to the poor problem of anchor effect.

Description

Two-way submarine cable fixing equipment and system

Technical Field

The application relates to the technical field of submarine optical communication, in particular to bidirectional submarine cable fixing equipment and system.

Background

At present, a submarine cable is used as a medium for transmitting light and electricity, the submarine cable is increasingly applied to the ocean field, in order to guarantee the stability of the submarine cable, an anchoring device is needed to be adopted to fix the submarine cable on various occasions, generally, the submarine cable needs to be connected to a landing station after landing, the submarine cable between the landing end and the landing station is easily affected by the impact of tide and sea wave to damage the submarine cable, and in order to protect the submarine cable in the region, the submarine cable needs to be anchored particularly under the condition that the distance of a landing section is far away. Power and signals are transmitted between an offshore Floating Production Storage and Offloading (FPSO) device and a single-point mooring system through a jumper cable, the jumper cable is suspended in the air and can swing under the influence of wind and FPSO movement, and two ends of the jumper cable need to be fixed through anchoring devices.

In the related technology, the principle of the anchoring mode of the submarine cable is mainly that a flat plate type structure or a pressing cone type structure is adopted to compress the armor steel wires of the submarine cable, and the pressing force of a pressing plate on the armor steel wires is utilized to play a role in fixing the submarine cable. However, the flat plate structure provides small pressing force, and the anchoring device is easy to loosen after a long time; the pressure cone type structure is smaller in the pressure process, the stress area of the armored steel wire is smaller, the armored steel wire is easy to generate larger pressure to the local part, the armored steel wire is damaged, the submarine cable is damaged, the two anchoring modes mainly comprise a pressure plate and a bolt stress used for fastening in the process that the submarine cable is pulled, the bolt is easy to loosen along with the lapse of time, the looseness is caused, the fixing effect is poor, and the regular frequent maintenance is needed. In addition, in the related art, the submarine cable anchoring device usually adopts insulating sealant to fill the gap so as to achieve the effects of auxiliary sealing and fixing, but the submarine cable usually needs to meet the long service life of dozens of years, the service life of the sealant is limited, and the requirement is difficult to achieve, and the sealant dismounting process is complex and is not beneficial to later maintenance.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a two-way submarine cable fixed equipment and system to solve among the related art and fix the easy not hard up problem that leads to the anchor effect poor of submarine cable's bolt in long-time use.

In a first aspect, a bidirectional submarine cable fixing device is provided, which includes:

two side walls of the fixed box body are provided with first cable through holes;

two sets of fixed subassembly of locating respectively fixed box both sides wall, each fixed subassembly all includes a first mounting, first mounting subsides are located in the fixed box, and along keeping away from the correspondence the first direction size grow gradually of crossing the cable through-hole, be equipped with the second on the first mounting and cross the cable through-hole, all the cable through-hole is crossed to the second and the first cable through-hole of crossing forms cable passageway, first mounting is used for passing at the submarine cable link to each other rather than inside armor steel wire when crossing the cable passageway, with fixed the submarine cable, first mounting still be used for with the pulling force transmission that the submarine cable received extremely fixed box.

In some embodiments, each of the securing assemblies comprises:

the second fixing piece is positioned in the fixing box body, a containing through hole is formed in the second fixing piece, the containing through hole comprises a first containing section and a second containing section, the first containing section is used for containing a corresponding section of the submarine cable, and the second containing section is used for containing the first fixing piece on the corresponding side;

one fixing plate is arranged at the end part, far away from the first cable through hole, of the second fixing piece and used for fixing the first fixing piece in the second accommodating section, and the other fixing plate is arranged on the outer side wall of the fixing box body and corresponds to the fixing plate positioned in the fixing box body;

and the fastening assembly comprises at least two fastening pieces, and the fastening pieces are used for connecting the second fixing piece and the fixing plate so as to enable the corresponding fixing plate and the armored steel wire on the corresponding side to be mutually abutted.

In some embodiments, the fixing box body includes a receiving cavity, the receiving cavity is used for receiving the first fixing piece and the second fixing piece, and a fiber coiling assembly is further arranged in the receiving cavity and used for splicing the submarine cable again in the receiving cavity.

In some embodiments, the fixed box body comprises a cover plate arranged on the top of the fixed box body, the top of the fixed box body is provided with a connecting groove along the outline of the fixed box body, the bottom of the cover plate is provided with a boss matched with the connecting groove along the outline of the cover plate, the cover plate is connected with the fixed box body through a connecting bolt, and a first sealing element is arranged between the cover plate and the fixed box body.

In some embodiments, the fixing plate is provided with at least two connecting holes respectively matched with the fasteners, each connecting hole of the fixing plate arranged outside the fixing box body is provided with a second sealing element, and one end of the first accommodating section close to the fixing plate is provided with a third sealing element.

In some embodiments, the second fixing member is integrally formed with a sidewall of the fixing case.

In some embodiments, the fixing box body includes a base disposed at the bottom, the base extends along two sides of the fixing box body where the fixing component is disposed to form a positioning table, and the positioning tables on two sides are provided with a triangular rib plate.

In a second aspect, there is provided a bi-directional sea cable securing system comprising:

the two groups of fixing assemblies are respectively arranged on two side walls of the fixing box body, each fixing assembly comprises a first fixing piece, the first fixing pieces are attached to the inside of the fixing box body, the size of each fixing piece is gradually increased along the direction far away from the corresponding first cable through hole, the first fixing pieces are provided with second cable through holes, and all the second cable through holes and the first cable through holes form cable through channels;

the submarine cable penetrates through the cable passing channel and comprises a sheath-free section, the sheath-free section is located in the fixed box body and is shorter than the fixed box body, an armored steel wire at the sheath-free section is disconnected from the middle and is respectively wound on the first fixing pieces on the same side of the sheath-free section, so that the submarine cable and the fixed box body are fixed, and the pulling force generated when the submarine cable is pulled is transmitted to the fixed box body.

In some embodiments, each of the securing assemblies comprises:

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a bidirectional submarine cable fixing device, wherein a first fixing piece is attached to a fixing box body, when a submarine cable passes through a cable channel, an armored steel wire inside the submarine cable is respectively connected with the first fixing pieces on the same side of the armored steel wire to fix the submarine cable, so that when the submarine cable is under tension, the submarine cable firstly drives the armored steel wire to transmit the force to the first fixing piece, and then the fastening force between the first fixing piece and the armored steel wire is increased along with the increase of the tension, and the effect of compression is achieved; simultaneously, because first mounting is along keeping away from the direction size grow gradually that corresponds first cable through-hole, consequently can transmit the pulling force of submarine cable on fixed box when pulling, and avoid bolt and fixed plate atress for equipment is whole can not become flexible because of receiving submarine cable pulling force for a long time, and the submarine cable all can receive better anchor in the long-time use of assurance, guarantees the effect of anchor.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic vertical cross-sectional structural view of a bidirectional submarine cable fixing system provided in an embodiment of the present application;

fig. 2 is a schematic vertical cross-sectional structural view of the bidirectional submarine cable fixing device provided by the embodiment of the present application, in which a fiber coiling assembly is arranged inside the bidirectional submarine cable fixing device;

fig. 3 is a schematic structural diagram of a bidirectional submarine cable fixing system according to an embodiment of the present application.

In the figure: 1-a fixed box body, 10-a first cable through hole, 11-a containing cavity, 12-a cover plate, 13-a connecting groove, 14-a boss, 15-a first sealing element, 16-a base, 17-a triangular rib plate, 2-a fixed component, 20-a first fixed component, 21-a second fixed component, 22-a containing through hole, 23-a fixed plate, 24-a fastening piece, 25-a second sealing element, 26-a third sealing element, 3-a submarine cable, 30-an armored steel wire, 31-a jacket-free section and 4-a coiled fiber component.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a two-way submarine cable fixing equipment, which can solve the problem that the bolt for fixing a submarine cable in a long-time use process in the related art is easy to loosen to cause poor anchoring effect.

Referring to fig. 1, the bidirectional submarine cable fixing equipment mainly comprises a fixing box body 1 and two groups of fixing components 2 respectively arranged on two side walls of the fixing box body 1, wherein two side walls of the fixing box body 1 are respectively provided with a first cable through hole 10, each fixing component 2 comprises a first fixing part 20, the first fixing parts 20 are attached to the inside of the fixing box body 1 and gradually increase in size along the direction away from the corresponding first cable through hole 10, the first fixing parts 20 are provided with second cable through holes, all the second cable through holes and the first cable through holes 10 form cable channels, the first fixing parts 20 are used for being connected with an armored steel wire 30 inside the submarine cable 3 when the submarine cable 3 passes through the cable channels, so as to fix the submarine cable 3, and the first fixing parts 20 are also used for transmitting the tensile force borne by the submarine cable 3 to the fixing box body 1.

Furthermore, each fixing assembly 2 further comprises a second fixing member 21, two fixing plates 23 and a fastening assembly, wherein the second fixing member 21 is located in the fixing box body 1, the second fixing member 21 is provided with an accommodating through hole 22, the accommodating through hole 22 comprises a first accommodating section and a second accommodating section, the first accommodating section is used for accommodating a corresponding section of the submarine cable 3, and the second accommodating section is used for accommodating the first fixing member 20 on the corresponding side; one fixing plate 23 is arranged at the end part of the second fixing piece 21 far away from the first cable through hole 10 so as to fix the first fixing piece 20 in the second accommodating section, and the other fixing plate 23 is arranged on the outer side wall of the fixing box body 1 and corresponds to the fixing plate 23 positioned in the fixing box body 1; the fastening assembly comprises at least two fastening pieces 24, and the fastening pieces 24 are used for connecting the second fixing piece 21 and the fixing plate 23 so as to enable the corresponding fixing plate 23 and the armor steel wire 30 on the corresponding side to abut against each other.

Specifically, from the viewpoint of structural design, the second fixing members 21 are integrally formed with the inner wall of the fixing case 1, the receiving through hole 22 provided in each second fixing member 21 has a shape similar to a trumpet shape, which forms a cable passing channel together with two first cable passing through holes 10 on the side wall of the fixed box body 1 and a second cable passing through hole on the first fixing piece 20, the size of the first accommodating section is cylindrical, the size of the inner wall of the second accommodating section is matched with the outer diameter of the submarine cable 3, the second accommodating section is in a circular truncated cone shape, the size of the inner wall of the second accommodating section is matched with the shape of the first fixing piece 20, the inner wall of the fixing box body is mutually jointed with the first fixing piece 20 and accommodates the first fixing piece 20, the outermost layer of the sheath layer of the submarine cable 3 at the corresponding section in the fixing box body 1 is removed, after the armor steel wire 30 is exposed, the armor steel wires 30 on both sides are respectively wound on the first fixing pieces 20 on the same side with the armor steel wires to fix the submarine cable 3 and the fixing box body 1. Two fixing plates 23 are respectively arranged on two sides of the second fixing member 21, wherein the fixing plates 23 positioned in the fixing box body 1 mainly have the function of fixing and pressing the armor steel wire 30 on the first fixing member 20, and the fixing plates 23 positioned on the outer wall of the fixing box body 1 play a certain sealing role in addition to assisting the fixing of the fixing plates 23 positioned on the inner side under the action of the fasteners 24. A plurality of fasteners 24 are arranged on the two fixing plates 23 at intervals in a penetrating manner, the number of the fasteners can be increased or decreased according to actual conditions, and the first fixing piece 20 is fixed in the accommodating through hole 22 under the action of the fasteners 24, so that the armored steel wire 30 is tightly pressed on the first fixing piece 20, the connection stability is ensured, and the sealing performance is also ensured to a certain extent.

Specifically, because first fixing piece 20 along keeping away from the direction size that corresponds first cable through-hole 10 and grow gradually, and the armor steel wire 30 of both sides is around being established respectively on it, therefore when pulling, at first armor steel wire 30 will transmit power to first fixing piece 20 on, first fixing piece 20 can produce a trend towards fixed box 1 inner wall motion under the effect of armor steel wire 30, armor steel wire 30 and first fixing piece 20 can hug closely more in this process for the connection between submarine cable 3 and fixed box 1 is more firm, and because middle armor steel wire 30 is the disconnection, therefore, when one side is pulled, the pulling force that basically receives on the other side is very little, can not produce too big influence. Secondly, when one side of the submarine cable 3 is pulled, because of the shape of the first fixing piece 20 and the connection relation between the first fixing piece 20 and the armor steel wire 30, most of the pulling force of the submarine cable 3 can be transmitted to the second fixing piece 21 by the first fixing piece 20, and the second fixing piece 21 and the fixed box body 1 are integrally formed, most of the pulling force of the submarine cable 3 is transmitted to the fixed box body 1 at last, only a small part of the pulling force acts on the fixed plate 23 and the fastening piece 24, the fastening piece 24 is a bolt, so that the stress of the bolt and the fixed plate 23 is avoided, the whole device cannot be loosened due to the pulling force of the submarine cable 3 for a long time, the submarine cable 3 can be well anchored in the long-time use process, and the anchoring effect is ensured.

Further, referring to fig. 2, the fixing box 1 includes a containing cavity 11, the containing cavity 11 is used for containing the first fixing member 20 and the second fixing member 21, a fiber coiling assembly 4 is further disposed in the containing cavity 11, and the fiber coiling assembly 4 is used for splicing the submarine cable 3 again in the containing cavity 11, so that the device can be used for not only fixing the submarine cable 3, but also splicing the submarine cable 3.

Further, as the service life increases, even if the equipment has no fault, the equipment can be maintained or repaired after the fault, in order to facilitate subsequent maintenance, the fixed box 1 further comprises a cover plate 12 arranged on the top of the fixed box 1, the top of the fixed box 1 is provided with a connecting groove 13 along the contour thereof, the bottom of the cover plate 12 is provided with a boss 14 matched with the connecting groove 13 along the contour thereof, the cover plate 12 is connected with the fixed box 1 through a connecting bolt, and a first sealing member 15 is arranged between the cover plate 12 and the fixed box 1. When needs overhaul or maintenance, directly open apron 12 can, very convenient, be difficult to open the problem of fixed box 1 when having avoided adopting sealed glue to seal.

Furthermore, because the use environment is at sea or offshore area, the sea water itself has great corrosivity, and the submarine cable 3 in the equipment is removed from the sheath layer, in order to protect the fixed box 1 itself and the submarine cable 3, at least two connecting holes respectively matched with the fasteners 24 are arranged on the fixed plate 23, a second sealing element 25 is arranged on each connecting hole of the fixed plate 23 arranged outside the fixed box 1, and a third sealing element 26 is arranged at one end of the first accommodating section close to the fixed plate 23, so as to ensure that the fixed box 1 itself has good sealing performance.

Further, as shown in fig. 3, in order to ensure that the overall stress performance of the fixed box 1 is improved, the fixed box 1 further includes a base 16 disposed at the bottom, the base 16 extends along the two sides of the fixed box 1 where the fixed components 2 are disposed to form a positioning table, the positioning tables at the two sides are provided with a triangular rib plate 17, and the base 16 is fixed on the base and can transmit force through the fixed box 1 when the submarine cable 3 is pulled, so as to fix the fixed box 1 better.

The application also provides a bidirectional submarine cable fixing system which mainly comprises a fixing box body 1, two groups of fixing components 2 and submarine cables 3, wherein the two groups of fixing components 2 and the submarine cables 3 are respectively arranged on two side walls of the fixing box body 1, first cable through holes 10 are respectively formed in the two side walls of the fixing box body 1, each fixing component 2 comprises a first fixing part 20, the first fixing parts 20 are attached to the inside of the fixing box body 1, the size of each fixing part is gradually increased along the direction far away from the corresponding first cable through hole 10, second cable through holes are formed in the first fixing parts 20, and cable through channels are formed by all the second cable through holes and the first cable through holes 10; the submarine cable 3 is arranged on the cable passing channel in a penetrating mode, the submarine cable 3 comprises an unsheathed section 31, the unsheathed section 31 is located in the fixed box body 1 and is shorter than the fixed box body 1 in length, the armored steel wire 30 at the unsheathed section 31 is disconnected from the middle and is respectively wound on the first fixing piece 20 on the same side of the unsheathed steel wire 30, the unsheathed steel wire is used for fixing the submarine cable 3 and the fixed box body 1, and the unsheathed steel wire is also used for transmitting the pulling force generated when the submarine cable 3 is pulled to the fixed box body 1.

Furthermore, each fixing assembly 2 comprises a second fixing piece 21, two fixing plates 23 and a fastening assembly, the second fixing piece 21 is located in the fixing box body 1, a containing through hole 22 is formed in the second fixing piece 21, the containing through hole 22 comprises a first containing section and a second containing section, the first containing section is used for containing a corresponding section of the submarine cable 3, and the second containing section is used for containing the first fixing piece 20 on the corresponding side; one fixing plate 23 is arranged at the end part of the second fixing piece 21 far away from the first cable through hole 10 so as to fix the first fixing piece 20 in the second accommodating section, and the other fixing plate 23 is arranged on the outer side wall of the fixing box body 1 and corresponds to the fixing plate 23 positioned in the fixing box body 1; the fastening assembly comprises at least two fastening pieces 24, and the fastening pieces 24 are used for connecting the second fixing piece 21 and the fixing plate 23 so as to enable the corresponding fixing plate 23 and the armor steel wire 30 on the corresponding side to abut against each other.

Further, the fixing box body 1 comprises a containing cavity 11, the containing cavity 11 is used for containing a first fixing piece 20 and a second fixing piece 21, a fiber coiling assembly 4 is further arranged in the containing cavity 11, and the fiber coiling assembly 4 is used for fixing the submarine cable 3 entering the containing cavity 11 or splicing the submarine cable 3 in the containing cavity 11 again.

Further, the fixed box body 1 comprises a cover plate 12 arranged at the top of the fixed box body, the top of the fixed box body 1 is provided with a connecting groove 13 along the outline of the fixed box body, the bottom of the cover plate 12 is provided with a boss 14 matched with the connecting groove 13 along the outline of the fixed box body, the cover plate 12 is connected with the fixed box body 1 through a connecting bolt, and a first sealing element 15 is arranged between the cover plate 12 and the fixed box body 1.

Furthermore, at least two connecting holes respectively matched with the fasteners 24 are formed in the fixing plate 23, a second sealing element 25 is arranged on each connecting hole of the fixing plate 23 arranged on the outer side of the fixing box body 1, and a third sealing element 26 is arranged at one end, close to the fixing plate 23, of the first accommodating section.

Further, fixed box 1 is including locating the base 16 of bottom, and base 16 extends in order to form the location platform along the both sides that fixed box 1 was equipped with fixed subassembly 2 respectively, all is equipped with a triangle floor 17 on the location platform of both sides.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in 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 in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bidirectional submarine cable fixing device, characterized in that it comprises:

two side walls of the fixed box body (1) are provided with first cable through holes (10);

two sets of fixed subassembly (2) of locating respectively fixed box (1) both sides wall, each fixed subassembly (2) all include a first mounting (20), first mounting (20) are pasted and are located in fixed box (1), and along keeping away from corresponding first direction size grow gradually of crossing cable through-hole (10), be equipped with the second on first mounting (20) and cross the cable through-hole, all the cable through-hole is crossed to the second and first crossing cable through-hole (10) formation crosses the cable passageway, first mounting (20) are used for passing submarine cable (3) link to each other with its inside armor steel wire (30) when crossing the cable passageway, in order to fix submarine cable (3), first mounting (20) still be used for with the pulling force that submarine cable (3) received transmit to fixed box (1).

2. A bidirectional submarine cable fixing apparatus according to claim 1, wherein each of the fixing assemblies (2) comprises:

the second fixing piece (21) is positioned in the fixing box body (1), a containing through hole (22) is formed in the second fixing piece (21), the containing through hole (22) comprises a first containing section and a second containing section, the first containing section is used for containing a corresponding section of the submarine cable (3), and the second containing section is used for containing the first fixing piece (20) on the corresponding side;

the two fixing plates (23), wherein one fixing plate (23) is arranged at the end part, far away from the first cable through hole (10), of the second fixing piece (21) so as to be used for fixing the first fixing piece (20) in the second accommodating section, and the other fixing plate (23) is arranged on the outer side wall of the fixing box body (1) and corresponds to the fixing plate (23) positioned in the fixing box body (1);

the fastening assembly comprises at least two fastening pieces (24), and the fastening pieces (24) are used for connecting the second fixing piece (21) and the fixing plate (23) so as to enable the corresponding fixing plate (23) and the armored steel wire (30) on the corresponding side to abut against each other.

3. A bi-directional submarine cable fixing apparatus according to claim 2, wherein: fixed box (1) is including one and hold chamber (11), hold chamber (11) and be used for acceping first mounting (20) and second mounting (21), it still is equipped with a dish fine subassembly (4) in chamber (11) to hold, dish fine subassembly (4) are used for holding chamber (11) in right submarine cable (3) continue again.

4. A bi-directional submarine cable fixing apparatus according to claim 1, wherein: fixed box (1) is including apron (12) of locating its top, the top of fixed box (1) is equipped with spread groove (13) along its profile, the bottom of apron (12) along its profile be equipped with boss (14) that spread groove (13) match, apron (12) pass through connecting bolt with fixed box (1) links to each other, just be equipped with first sealing member (15) between apron (12) and fixed box (1).

5. A bi-directional submarine cable fixing apparatus according to claim 2, wherein: the fixing plate (23) is provided with at least two connecting holes which are respectively matched with the fasteners (24), each connecting hole of the fixing plate (23) which is arranged on the outer side of the fixing box body (1) is provided with a second sealing element (25), and one end of the first accommodating section, which is close to the fixing plate (23), is provided with a third sealing element (26).

6. A bi-directional submarine cable fixing apparatus according to claim 2, wherein: the second fixing piece (21) and the side wall of the fixed box body (1) are integrally formed.

7. A bi-directional submarine cable fixing apparatus according to claim 1, wherein: fixed box (1) is including locating base (16) of bottom, base (16) are followed respectively fixed box (1) is equipped with the both sides of fixed subassembly (2) are extended in order to form the location platform, both sides the location bench all is equipped with a triangular rib board (17).

8. A bi-directional sea cable fixing system, comprising:

the two groups of fixing assemblies (2) are respectively arranged on two side walls of the fixing box body (1), each fixing assembly (2) comprises a first fixing piece (20), the first fixing pieces (20) are attached to the inside of the fixing box body (1) and gradually increase in size along the direction far away from the corresponding first cable through hole (10), second cable through holes are formed in the first fixing pieces (20), and cable through channels are formed by all the second cable through holes and the first cable through holes (10);

the submarine cable (3) penetrates through the cable passing channel, the submarine cable (3) comprises an unsheathed section (31), the unsheathed section (31) is located in the fixed box body (1) and is shorter than the fixed box body (1), an armored steel wire (30) at the unsheathed section (31) is disconnected from the middle part and respectively wound on the first fixing piece (20) on the same side as the unsheathed section, so that the submarine cable (3) is fixed with the fixed box body (1), and the unsheathed section is also used for transmitting the tensile force generated when the submarine cable (3) is pulled to the fixed box body (1).

9. A bi-directional submarine cable fixing system according to claim 8, wherein: each of said fixing assemblies (2) comprising:

10. A bi-directional submarine cable fixing system according to claim 8, wherein: fixed box (1) is including one and hold chamber (11), hold chamber (11) and be used for acceping first mounting (20) and second mounting (21), it still is equipped with a dish fine subassembly (4) in chamber (11) to hold, dish fine subassembly (4) are used for holding chamber (11) in right submarine cable (3) continue again.