CN211014672U

CN211014672U - Coupling coil submarine cable probe

Info

Publication number: CN211014672U
Application number: CN201921375546.XU
Authority: CN
Inventors: 张超; 陈剑平; 周庆东; 杨玺; 林伟亮; 邱协成; 吴伟; 刘清冰; 赵伯争; 夏剑锋; 逮伟
Original assignee: Guangdong Power Grid Co Ltd; Jiangmen Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Jiangmen Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-07-14
Anticipated expiration: 2029-08-22

Abstract

The utility model relates to a submarine cable surveys technical field, more specifically relates to a coupling coil submarine cable probe, the probe includes a plurality of intercoupling's coil and is used for the coil inner core of fixed coil and is used for protecting coil's shell structure, and a plurality of intercoupling's coil is fixed in the coil inner core outside, a plurality of intercoupling's the coil outside is located to the shell structure cover, the probe still is equipped with and is used for the watertight connector who connects signal transmission equipment. The utility model provides a simple structure of the combination mode of the coil generating the alternating magnetic field through the arrangement of a plurality of mutually coupled coils. In addition, the coil structure is effectively protected by the arrangement of the shell structure, and the effectiveness of the coil structure in detecting the submarine cable is guaranteed. The watertight connector is arranged for connecting external signal transmission equipment, so that signals detected by the submarine cable are effectively transmitted.

Description

Coupling coil submarine cable probe

Technical Field

The utility model relates to a submarine cable surveys technical field, more specifically relates to a coupling coil submarine cable probe.

Background

The submarine cable detection method is various, and the detection method based on the magnetic theory comprises an alternating current magnetic field detection method, an absolute magnetic field detection method and a metal search method. The method widely applied at present is an alternating current magnetic field detection method, and the principle of the method is that an audio signal is added on a cable inner conductor, a magnetic field signal induced by current is detected, and the method can be used for positioning the submarine cable according to the signal intensity characteristic. The method has the advantages of wide detection range, high positioning precision and relatively simple implementation technology. However, the metal conductor in the cable for transmitting the alternating current detection signal has a certain attenuation effect on the detection signal, so that the larger the resistance value of the metal conductor is, the shorter the effective detection distance is under the condition of a certain input signal, and the length of a detectable fault point from a line between transmission stations is limited by the power of an injection signal and the impedance of a line conductor. In the prior art, the structure and operation of a probe part coil adopting an alternating-current magnetic field detection method are complex, and the complex design of the probe part coil can influence the performance of self-adaptive anti-interference capability, so that how to design a proper coil is especially important for the detection precision of the alternating-current magnetic field detection method.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned current alternating current magnetic field and survey the too complicated problem of probe part coil design among the method, provide a simple coupling coil submarine cable probe.

In this technical scheme, a coupling coil submarine cable probe is provided, the probe includes a plurality of intercoupling's coil and is used for the coil inner core of fixed coil and is used for protecting the shell structure of coil, and a plurality of intercoupling's coil is fixed in the coil inner core outside, a plurality of intercoupling's coil outside is located to the shell structure cover, the probe still is equipped with and is used for connecting the watertight connector of signal transmission equipment.

The utility model provides a simple structure of the combination mode of the coil generating the alternating magnetic field through the arrangement of a plurality of mutually coupled coils. In addition, the coil structure is effectively protected by the arrangement of the shell structure, and the effectiveness of the coil structure in detecting the submarine cable is guaranteed. The watertight connector is arranged for connecting external signal transmission equipment, so that signals detected by the submarine cable are effectively transmitted.

Preferably, the plurality of mutually coupled coils includes three coils, and the center lines of the three coils are perpendicular to each other and intersect at a point. It should be noted that the number of the surfaces is merely preferable and not restrictive.

Preferably, the coil inner core is a sphere structure poured by cement mortar, and three mutually perpendicular coil grooves for placing three coils are formed in the surface of the sphere structure. Therefore, the coil inner core for fixing the coil is provided, and the reliability of the fixed coil is improved.

Preferably, the coil slot is an annular coil slot, and a plastic wire slot for preventing the coil from being rubbed is arranged on the annular coil slot. This arrangement is provided to effectively protect the coil and prolong the life of the coil.

Preferably, the shell structure comprises a first shell and a second shell which are mutually covered, and the first shell and the second shell are fixedly connected through a detachable structure. This is provided to facilitate rapid insertion or removal of the overall structure of the coil.

Preferably, the second shell is provided with an annular groove for placing a sealing ring; and the first shell and the second shell are respectively provided with a threaded hole for the threaded structure to pass through, and the bolt passes through the threaded holes in the first shell and the second shell to fixedly connect the first shell and the second shell. The annular groove is arranged to place the sealing ring to effectively improve the connection tightness of the first shell and the second shell. The bolt passes through the screw hole on first casing and the second casing with first casing and second casing fixed connection, sets up like this in order to provide a threaded connection, improves the reliability of its connection, all adopts the helicitic texture among the general mechanical structure, because the steadiness of helicitic texture mechanical connection is very much. This is of course preferred and not intended to be limiting.

Preferably, a plurality of bosses which are uniformly distributed are arranged in the shell of the second shell, and insertion grooves for inserting the bosses are formed in the positions, corresponding to the positions where the second shell is placed, of the coil inner core. The coil inner core is prevented from rolling in the shell structure, the unstable signal detection condition occurs, and the signal detection accuracy is improved.

Preferably, the top of one side of the coil inner core, which is far away from the insertion groove, is provided with a plurality of lifting lugs, the first shell is provided with a lifting point for external lifting, and the lifting point is fixedly clamped with the lifting lugs. The arrangement is that when the outside needs to lift the coupling coil submarine cable probe, the lifting work can be completed through the lifting point; the arrangement of the lifting lug is used for reliably fixing the coil inner core and the shell structure, and effective lifting is facilitated.

Preferably, the probe is provided with two connecting rods, the two connecting rods penetrate out of two ends of the lifting point, and shackles used for being fastened with the outside are arranged at the positions, adjacent to the insertion positions of the lifting point, of the two ends of the two connecting rods. This is provided to provide an efficient means of lifting by the lifting point, although this is preferred and not a limiting provision. Preferably, the shackle at one end is tied to the bow of the vessel by a steel rope and the shackle at the other end is tied to the stern.

Preferably, the end faces of the first shell and the second shell, which are in contact with the bolt, are provided with anti-skid metal annular gaskets. The arrangement is to reliably connect and avoid the phenomenon of connection slip.

Compared with the prior art, the beneficial effects are:

the utility model discloses a setting of a plurality of intercoupling's coil provides simple structure's the compound mode of the coil that produces alternating current magnetic field. In addition, the coil structure is effectively protected by the arrangement of the shell structure, and the effectiveness of the coil structure in detecting the submarine cable is guaranteed. The watertight connector is arranged for connecting external signal transmission equipment, so that signals detected by the submarine cable are effectively transmitted. Through be equipped with a plurality of evenly distributed's boss in the casing of second casing, the coil inner core has been fixed reliably corresponding to the setting that second casing position department was equipped with the insertion groove that is used for the boss to peg graft on the coil inner core, avoids the coil inner core to roll in shell structure, the unstable condition of signal detection appears, improves its signal detection's accuracy.

Drawings

FIG. 1 is a schematic structural view of a submarine cable probe with a coupling coil in shallow water according to the present invention;

FIG. 2 is a schematic view of a coil assembly of the submarine cable probe with a coupling coil in shallow water according to the present invention;

FIG. 3 is a schematic view of the inner core structure of the submarine cable probe coil of the coupling coil in shallow water according to the present invention;

FIG. 4 is a schematic view of the lower shell structure of the shallow water coupled coil submarine cable probe of the present invention;

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

examples

Fig. 1 to 4 show an embodiment of the coupling coil submarine cable probe according to the present invention, the probe includes a plurality of intercouples coil 1, coil inner core 2 for fixing coil 1, and shell structure 3 for protecting coil 1, the plurality of intercouples coil 2 is fixed outside coil inner core 1, the shell structure 3 is sleeved outside the plurality of intercouples coil 1, and the probe is further provided with watertight connector 4 for connecting signal transmission equipment.

The plurality of mutually coupled coils 1 comprise three coils, and the central lines of the three coils are mutually perpendicular and intersect at one point. It should be noted that the number of the surfaces is merely preferable and not restrictive.

In addition, the coil inner core 2 is a sphere structure poured by cement mortar, and three mutually perpendicular coil grooves 21 for placing three coils are arranged on the surface of the sphere structure. Therefore, the coil inner core for fixing the coil is provided, and the reliability of the fixed coil is improved.

The coil slot 21 is an annular coil slot, and a plastic wire slot 22 for preventing the coil from being rubbed is arranged on the annular coil slot. This arrangement is provided to effectively protect the coil and prolong the life of the coil.

In addition, the housing structure 3 includes a first housing 31 and a second housing 32 that are covered with each other, and the first housing 31 and the second housing 32 are fixedly connected by a detachable structure. This is provided to facilitate rapid insertion or removal of the overall structure of the coil.

Wherein, the second housing 32 is provided with an annular groove 321 for placing a sealing ring; the first shell 31 and the second shell 32 are both provided with through holes or threaded holes for the threaded structures to pass through, and bolts pass through the threaded holes on the first shell 31 and the second shell 32 to fixedly connect the first shell 31 and the second shell 32. The annular groove is arranged to place the sealing ring to effectively improve the connection tightness of the first shell and the second shell. The bolt passes through the screw hole on first casing and the second casing with first casing and second casing fixed connection, sets up like this in order to provide a threaded connection, improves the reliability of its connection, all adopts the helicitic texture among the general mechanical structure, because the steadiness of helicitic texture mechanical connection is very much. This is of course preferred and not intended to be limiting.

In addition, a plurality of bosses 322 are uniformly distributed in the shell of the second shell 32, and insertion grooves 24 for inserting the bosses 322 are arranged on the coil inner core 2 corresponding to the position where the second shell 32 is placed. The appearance sets up for fixed coil inner core, avoids the coil inner core to roll in shell structure, the unstable condition of signal detection appears, improves its signal detection's accuracy.

The top of one side of the coil inner core 2, which is far away from the insertion slot 22, is provided with a plurality of lifting lugs 23, the first shell 31 is provided with a lifting point 311 for external lifting, and the lifting point 311 is fixedly clamped with the lifting lugs 23. The arrangement is that when the outside needs to lift the coupling coil submarine cable probe, the lifting work can be completed through the lifting point; the arrangement of the lifting lug is used for reliably fixing the coil inner core and the shell structure, and effective lifting is facilitated.

In addition, the probe is provided with two connecting rods 312, the two connecting rods 312 penetrate through two ends of the hanging point 311, and mounting and dismounting buttons 313 for fastening with the outside are arranged at the two ends of the two connecting rods 312, which are adjacent to the splicing position of the hanging point 311. This is provided to provide an efficient means of lifting by the lifting point, although this is preferred and not a limiting provision. In the embodiment, the mounting shackle at one end is tied to the bow of the ship through a steel rope, and the mounting shackle at the other end is tied to the stern of the ship.

The end faces of the first shell 31 and the second shell 32, which are in contact with the bolts, are provided with anti-skid metal annular gaskets 5. The arrangement is to reliably connect and avoid the phenomenon of connection slip.

In addition, the depth of the coil slots 21 is different; the mounting position of the watertight connector 4 is above the wire slot with the maximum depth of the wire slot, and the direction of the two connecting rods 312 is the same as the direction of the central line of the wire slot with the maximum depth.

Specifically, the method comprises the following steps: in this embodiment, as shown in fig. 2, the central lines of the three coupling coils are perpendicular to each other and intersect at a point, and the three coils correspond to three coordinate axis directions respectively. As shown in fig. 3, the coil inner core 2 is a sphere formed by pouring cement mortar, three mutually perpendicular annular coil grooves 21 are formed in the outer surface of the sphere, the depths of the coil grooves 21 are different, a plastic wire groove 22 is bonded in each coil groove 21, four lifting lugs 23 are arranged on the upper half part, each lifting lug 23 is a cylindrical steel bar with holes embedded in the coil inner core 2, and four symmetrical rectangular insertion grooves 22 are arranged on the lower half part.

The top of the upper shell 31 is provided with a hanging point 311, the middle of the hanging point 311 passes through two connecting rods 312, two ends of the connecting rods 312 are respectively provided with a round hole for installing a shackle 313, the shackle 313 at one end is tied at the bow of the ship through a steel rope, the shackle 313 at the other end is tied at the stern, the watertight connector 4 is arranged below one side of the hanging point 311, and the place is a platform which is convenient for sealing between the watertight connector 4 and the upper shell 31. The upper shell 31 is obtained by injection moulding.

As shown in fig. 4, an annular groove 321 is formed in the end surface of the lower housing 32, the O-ring is disposed in the annular circular groove 321, four uniformly distributed bosses 322 are disposed on the inner side of the lower housing 32, the bosses 322 are rectangular, and the bosses and the lower housing 5 are formed by injection molding.

In this embodiment, the three coils 1 are respectively disposed in the corresponding coil slots 21, the installation position of the watertight connector 4 is above the slot with the maximum slot depth, and the direction of the connecting rod 312 is the same as the direction of the central line of the slot with the maximum depth. When the coil core is placed in the case, the bosses 22 on the lower case 32 are just inserted into the insertion grooves 22 of the coil core. And metal annular gaskets 5 are respectively arranged between the flanges of the upper shell 31 and the lower shell 32 and the bolt fasteners.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a coupling coil submarine cable probe, its characterized in that, the probe includes coil (1) of a plurality of intercouplings and is used for coil inner core (2) of fixed coil (1) and shell structure (3) that are used for protecting coil (1), and coil inner core (2) outside is fixed in coil (1) of a plurality of intercouplings, a plurality of intercouplings's coil (1) outside is located to shell structure (3) cover, the probe still is equipped with and is used for connecting watertight connector (4) of signal transmission equipment.

2. A coupled coil submarine cable probing probe according to claim 1, wherein the plurality of mutually coupled coils (1) comprises three coils, the centerlines of the three coils being perpendicular to each other and intersecting at a point.

3. The sea cable probe with the coupling coil as claimed in claim 2, wherein the coil core (2) is a sphere structure poured by cement mortar, and the surface of the sphere structure is provided with three mutually perpendicular coil grooves (21) for placing three coils.

4. A coupled coil submarine cable probe according to claim 3, where the coil slots (21) are toroidal coil slots with plastic wire slots (22) to prevent coils from rubbing.

5. A coupled coil submarine cable probe according to any of claims 1 to 4, where the housing structure (3) comprises a first housing (31) and a second housing (32) that cover each other, the first housing (31) and the second housing (32) being fixedly connected by a detachable structure.

6. A coupled coil submarine cable probing probe according to claim 5, wherein the second housing (32) is provided with an annular groove (321) for seating a sealing ring; the first shell (31) and the second shell (32) are respectively provided with a through hole for the threaded structure to pass through, and a bolt passes through threaded holes in the first shell (31) and the second shell (32) to fixedly connect the first shell (31) and the second shell (32).

7. The submarine cable probe with coupled coils according to claim 6, wherein a plurality of bosses (322) are uniformly distributed in the second shell (32), and insertion slots (24) for inserting the bosses (322) are formed in the coil inner core (2) at positions corresponding to the positions where the second shell (32) is placed.

8. The coupling coil submarine cable probe according to claim 7, wherein the top of one side of the coil inner core (2) away from the insertion slot (24) is provided with a plurality of lifting lugs (23), the first shell (31) is provided with a lifting point (311) for external lifting, and the lifting point (311) is fixedly clamped with the lifting lugs (23).

9. The sea cable probe with the coupling coil as claimed in claim 8, wherein the probe is provided with two connecting rods (312), the two connecting rods (312) penetrate through two ends of the lifting point (311), and mounting and dismounting buttons (313) for fastening with the outside are arranged at two ends of the two connecting rods (312) adjacent to the insertion position of the lifting point (311).

10. A coupled coil submarine cable probe according to claim 5, wherein the end faces of the first and second housings (31, 32) that contact the bolts are each provided with a non-slip metal ring gasket (5).