Cable for deepwater equipment

Abstract

The invention relates to the technical field of cables, in particular to a cable for deepwater equipment, which comprises a plurality of wires and an oxygen pipe, the oxygen pipe is close to the central position of the cross section of the cable, the oxygen pipe is coaxially sleeved with a lantern ring, and the plurality of wires are stranded on the peripheral side of the lantern ring. The lantern rings are distributed at intervals in the length direction of the oxygen pipe. By means of the oxygen pipe, oxygen can be conveyed more smoothly.

Description

Technical Field

[0001] The present application relates to the technical field of cables, and in particular to a cable for deep-water equipment. Background Art

[0002] Currently, most underwater equipment still requires personnel to carry the connecting cables of the machine into the water to perform operations.

[0003] Oxygen pipelines are also added to the existing cable structures used for underwater equipment to facilitate the supply of oxygen to workers. However, this type of cable is prone to oxygen deficiency accidents due to blockage of the oxygen pipeline caused by cable bending during operation. Summary of the invention

[0004] In order to improve the oxygen supply effect of the cable, the present application provides a cable for deep-water equipment.

[0005] The present application provides a cable for deepwater equipment, which adopts the following technical solution: A cable for deepwater equipment comprises a plurality of conductors and an oxygen tube, wherein the oxygen tube is close to the center of the cable cross section, the oxygen tube is coaxially sleeved with a ring, a plurality of the conductors are twisted around the ring, and the rings are spaced apart along the length direction of the oxygen tube.

[0006] By adopting the above technical solution, multiple wires are twisted on the same oxygen tube, and the ring fixedly connected to the oxygen tube leaves a distance between the wires and the oxygen tube. When a part of the entire cable is bent, the bending force of the wires will not be fully applied to the oxygen tube, so that the oxygen tube can transport oxygen more smoothly.

[0007] Optionally, a plurality of first arc grooves are distributed on the outer circumference of the ring, the central axes of the first arc grooves of two adjacent rings are not coaxial, and the wire is embedded in the first arc groove.

[0008] By adopting the above technical solution, the setting of the first arc groove increases the connection relationship between the wire and the ring, and the ring plays a stable guiding role on the wire. When the same wire is matched with different rings, the twisting angle of the wire can also fix the ring, thereby increasing the connection relationship between the ring and the oxygen tube.

[0009] Optionally, the diameters of the plurality of first arc grooves are different.

[0010] By adopting the above technical solution, the first arc groove and the corresponding conductor are more compatible.

[0011] Optionally, the axial thickness of the ring is different. The ring includes a base ring portion and a thickening block detachably mounted on the base ring portion. The thickening blocks are spaced apart circumferentially along the base ring portion. After being assembled, the thickening blocks and the base ring portion are used to contact a wire with a large outer diameter.

[0012] By adopting the above technical solution, when the wire with a larger outer diameter contacts the ring and the thickening block, the thickening block increases the contact area between the wire and the ring, and reduces the space left between the wire and the oxygen tube in the axial direction. When the cable is bent, the wire with a larger outer diameter is bent to a smaller degree, and the force exerted by the wire with a larger outer diameter on the oxygen tube itself will be smaller, so the contact area between the wire and the ring can be appropriately increased, the installation stability of the wire is improved, and the overall tensile resistance of the cable is improved.

[0013] Optionally, a second arc groove is formed on the base ring portion, the second arc groove has a different diameter, and the thickening block is formed with an extended arc groove, and the extended arc groove of the thickening block is coaxial with the corresponding second arc groove.

[0014] By adopting the above technical solution, the provision of the second arc groove and the extended arc groove further increases the connection relationship between the wire and the ring.

[0015] Optionally, positioning holes are distributed on the circumference of the end surface of the base ring portion, and the thickening block is fixedly connected with an insertion rod, and the insertion rod is inserted into the positioning holes.

[0016] By adopting the above technical solution, after the thickening block and the base ring form a plug-in relationship, and after the wire and the ring are matched, the wire can also play a further fixing effect on the thickening block.

[0017] Optionally, a slot for inserting the thickening block is provided on the outer circumference of the base ring portion, and the thickening block is provided with a third arc groove, and the thickness of the thickening block is greater than the thickness of the base ring portion.

[0018] By adopting the above technical solution, the contact area between the conductor and the third arc groove is increased.

[0019] Optionally, the thicknesses of the plurality of thickening blocks along the axial direction of the base ring portion are different, and the thickness of the thickening blocks and the diameter of the third circular arc groove form a positive correlation.

[0020] By adopting the above technical solution, the thickening block increases the contact area between the wire and the ring, and reduces the partial space left between the wire with a larger outer diameter and the oxygen tube. When the cable is bent, the wire with a larger outer diameter is bent to a smaller degree. The force exerted by the wire with a larger outer diameter on the oxygen tube itself will be smaller, so the contact area between the wire and the ring can be appropriately increased, the installation stability of the wire is improved, and the overall tensile resistance of the cable is improved.

[0021] Optionally, the base ring portion is provided with an insertion hole on the inner wall of the slot, the thickening block is fixedly connected with an insertion rod, and the insertion rod is inserted into the insertion hole.

[0022] By adopting the above technical solution, the connection relationship between the thickening block and the base ring is further strengthened.

[0023] In summary, the present application includes at least one of the following beneficial effects: 1. When a part of the entire cable is bent, the bending force of the wire will not be fully applied to the oxygen tube, making the oxygen tube more unobstructed when transporting oxygen; 2. The coordination of the base ring and the thickening block changes the space between the wires of different outer diameters and the oxygen tube, so that the ferrule can better adapt to wires of different thicknesses. The twisted wires can also reinforce the relationship between the ferrule and the oxygen tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure in which multiple wires are twisted together on an oxygen tube in Example 1 of the present application; Figure 2 This is a schematic diagram of the structure of the distribution of the rings on the oxygen tube in Example 1 of the present application; Figure 3 It is a schematic structural diagram of the cooperation between the ring and the wire in Example 2 of the present application; Figure 4 is a schematic diagram of the overall structure of the sleeve of Example 3 of the present application; Figure 5 It is a schematic diagram of the overall structure of the ring of Example 4 of the present application.

[0025] Explanation of the reference numerals: 100, guide wire; 200, oxygen tube; 300, collar; 310, first arc groove; 320, base ring; 321, second arc groove; 322, positioning hole; 323, slot; 324, plug hole; 330, thickening block; 331, extended arc groove; 332, plug rod; 333, third arc groove. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-5 This application is described in further detail. Example

[0027] Embodiment 1 of the present application discloses a cable for deepwater equipment. Figure 1 and Figure 2A cable for deepwater equipment includes a plurality of conductors 100 and an oxygen tube 200. The plurality of conductors 100 are twisted around the oxygen tube 200 by a twisting device, and the oxygen tube 200 is close to the center of the cable cross section. A collar 300 is coaxially fixedly connected to the outer wall of the oxygen tube 200, and the collar 300 can be fixed by bonding. The collar 300 is spaced along the length of the oxygen tube 200. The central axis of the collar 300 coincides with the twisting center line, and the plurality of conductors 100 are twisted on the collar 300 around the oxygen tube 200, and the oxygen tube 200 forms a gap between the collar 300 and the conductor 100. When the cable is bent, the force of the conductor 100 on the oxygen tube 200 is reduced, thereby protecting the oxygen tube 200.

[0028] When the conductor 100 is twisted, parameters such as twist pitch, twist coefficient and twist direction are involved. The twist pitch refers to the axial length that each single wire in the twisted wire rotates around the center of the twisted wire, and the twist coefficient reflects the tightness of the twisted wire and the material utilization rate. The twist direction determines the bending performance and torsion resistance of the cable. The requirements for the cable twist angle are determined according to the specific application scenario and performance requirements of the cable.

[0029] A cable used for deepwater equipment is a multi-core cable. A multi-core cable refers to a cable composed of a plurality of mutually insulated conductors 100 and wrapped in a common outer sheath. This cable is usually used to transmit power or signals.

[0030] Specifically, the conductor 100 includes a conductive wire, which is made of multiple strands of finely twisted tinned copper wire and multiple strands of 3000D Kevlar bulletproof wire, which is tightly twisted to improve the tensile strength of the cable. The conductor 100 also includes optical fiber composite cables, video cables, network cables, 485 communication cables, CAN communication cables, etc. The multiple groups of conductors 100 of the power control cable combination are twisted with Kevlar filling, so that the cable has power supply, optical fiber composite cable, video monitoring, and data transmission functions; it realizes multi-functional transmission and enhances the application range of the cable, which can be applied to various underwater unmanned remote-controlled submersibles, underwater cameras, underwater salvage, underwater construction and other operating equipment within 3000 meters.

[0031] More specifically, the middle layer of the cable adopts TPU foaming technology, and the overall neutral density of the cable is controlled at 0.95-0.98g / cm3, approaching zero buoyancy. The cable can remain neither floating nor sinking at any point in the water depth.

[0032] The implementation principle of a cable for deepwater equipment in Example 1 of the present application is: A plurality of conductors 100 are twisted together on the same oxygen tube 200. The oxygen tube 200 is provided with rings 300 distributed at intervals. When the cable is bent, the conductors 100 are bent first. After the conductors 100 are bent, a force acts on the oxygen tube 200. Since there is a distance between the conductors 100 and the oxygen tube 200, the force acting on the oxygen tube 200 by the conductors 100 is reduced, and the situation that the oxygen tube 200 is blocked by bending is reduced, so that the oxygen supply effect of the cable is improved. Example

[0033] The difference between Example 2 and Example 1 is that the structure of the ring 300 is different. Figure 3 The outer circumference of the ring 300 is provided with a first arc groove 310, and the central axes of the first arc grooves 310 corresponding to the same wire 100 between two adjacent rings 300 are not coaxial. The first arc groove 310 has a guiding and positioning effect on the wire 100, and multiple wires 100 with a certain twist pitch can also reinforce the ring 300, improve the firmness of the ring 300 installed on the oxygen tube 200, and further improve the connection relationship between the oxygen tube 200 and the multiple wires 100, and the tensile strength of the cable.

[0034] Furthermore, due to the different types of wires 100, in order to make the ferrule 300 better match the wire 100, the diameters of the multiple first arc grooves 310 on a ferrule 300 are different, and the diameter of the first arc groove 310 is mainly designed according to the diameter of the corresponding wire 100. When installing the ferrule 300, it is also necessary to refer to the twisting pitch of the wire 100, so that the first arc grooves 310 corresponding to the same wire 100 are also distributed according to the twisting pitch of the wire 100. Example

[0035] The difference between Example 3 and Example 1 is that the structure of the ring 300 is different. Figure 4The collar 300 includes a base ring portion 320 and a thickening block 330 detachably mounted on the base ring portion 320. The thickening block 330 is installed according to the needs, and the thickness of the collar 300 in the axial direction is different after the thickening block 330 is installed. When the wire 100 is only in contact with the base ring portion 320, there is more space between the wire 100 and the oxygen tube 200 in the axial direction between two adjacent base ring portions 320. After the base ring portion 320 and the thickening block 330 are assembled, the wire 100 and the base ring portion 320 and the thickening block 330 are in contact at the same time, and the space between the wire 100 and the oxygen tube 200 in the axial direction between the two adjacent base ring portions 320 is reduced. In short, the thickening block 330 reduces the space between the wire 100 and the oxygen tube 200 in the axial direction. Since the bending resistance of the wire 100 with a thinner outer diameter is lower than that of the wire 100 with a thicker outer diameter, although the bending resistance of the wire 100 with a thinner outer diameter is low, the force exerted on the oxygen tube 200 by the wire 100 with a thinner outer diameter after bending is also relatively small, the wire 100 with a thicker outer diameter can be brought into contact with the base ring 320 and the thickening block 330 at the same time, and the wire 100 with a smaller outer diameter can be brought into contact with only the base ring 320. When the cable bend occurs at the position of the wire 100 with a thicker outer diameter, the space left between the oxygen tube 200 and the wire 100 is small, thereby further reducing the bending space of the wire 100 with a thicker outer diameter, and indirectly reducing the bending degree of the wire 100 with a thicker outer diameter.

[0036] Further, the base ring 320 is provided with a second arc groove 321, the diameter of the second arc groove 321 is different, and the diameter of the second arc groove 321 corresponds to the same diameter of the wire 100, and the thickening block 330 is provided with an extended arc groove 331, and the thickening block 330 is an arc block structure, the inner diameter of the thickening block 330 is the same as the inner diameter of the base ring 320, and the outer diameter of the thickening block 330 is the same as the outer diameter of the base ring. The thickening block 330 is set according to the situation of the second arc groove 321, and the thickening block 330 is installed on the end face of the base ring 320 and the second arc groove 321 with a larger diameter, and the diameter of the extended arc groove 331 of the thickening block 330 is the same as the diameter of the corresponding second arc groove 321 and is coaxial. The thickening block 330 reduces the space between the wire 100 with a large outer diameter and the oxygen tube 200, and the thickening block 330 also increases the contact area between the guide with a large outer diameter and the collar 300.

[0037] The thickness of the multiple thickening blocks 330 on the same base ring portion 320 can be different or the same. The thickening blocks 330 of Example 3 have the same thickness. If the thickness of the multiple thickening blocks 330 is different, the thickness of the thickening block 330 is positively correlated with the diameter of the second circular arc groove 321. For example, if the diameter of the second circular arc groove 321 is too large, the thickness of the thickening block 330 along the axial direction of the base ring portion 320 can be thickened to increase the contact area between the thickening block 330 and the wire 100 with a larger diameter.

[0038] Reference Figure 4 The end surface of the base ring 320 is provided with positioning holes 322, and the thickening block 330 is fixedly connected with an insertion rod 332, which is inserted into the positioning hole 322. The elongated arc grooves 331 of the two adjacent base rings 320 corresponding to the same wire 100 are not coaxial, and the wire 100 can also fix the thickening block 330, so that the thickening block 330 is stably inserted into the base ring 320.

[0039] The implementation principle of a cable for deepwater equipment in Example 3 of the present application is: The addition of the thickening block 330 changes the size of the space between the wire 100 and the oxygen tube 200. The wire 100 with a smaller diameter has a greater bending degree, but the space between the wire 100 with a smaller diameter and the oxygen tube 200 is larger, so that the force acting on the oxygen tube 200 when the wire 100 is bent is further reduced, and the contact area between the wire 100 with a larger diameter and the ring 300 is increased, thereby strengthening the connection relationship between the wire 100 with a larger diameter and the ring 300. Example

[0040] The difference between Example 4 and Example 3 is that the thickening block 330 is installed at a different position. Figure 5 The outer circumference of the base ring 320 is provided with a slot 323 for inserting the thickening block 330, and the multiple slots 323 have the same size. The thickening block 330 is provided with a third arc groove 333, and when the wire 100 and the oxygen tube 200 are twisted, the wire 100 and the third arc groove 333 are in contact. The diameters of the wires 100 are different, and the corresponding third arc grooves 333 are also different. The center lines of the third arc grooves 333 of the same wire 100 of two adjacent base rings 320 are not coaxial.

[0041] The thickness of the thickening block 330 along the axial direction of the base ring 320 is greater than the thickness of the base ring 320 in the axial direction. The installation method of the thickening block 330 in Example 4 can also increase the thickness of the base ring 320 in the radial direction. In addition, the thickness of multiple thickening blocks 330 of the same base ring 320 along the axial direction of the base ring 320 can be different, and the thickness of the thickening block 330 and the diameter of the third arc groove 333 form a positive correlation. The cooperation of the thickening block 330 and the base ring 320 can adapt to the wire 100 with a larger outer diameter, and the thickening block 330 of the corresponding size can be assembled according to the specific outer diameter size of the wire 100, mainly to achieve a smaller spacing between the wire 100 with a larger outer diameter and the oxygen tube 200 in the axial direction, so that the deformation space of the wire 100 with a larger outer diameter is reduced, and the deformation degree of the wire 100 with a larger outer diameter is further reduced, and the force of the wire 100 on the oxygen tube 200 is reduced.

[0042] Furthermore, in order to strengthen the connection between the thickening block 330 and the base ring, a plug hole 324 is opened on the inner wall of the slot 323 of the base ring portion 320 , and the thickening block 330 is fixedly connected with an insertion rod 332 , which is inserted into the plug hole 324 .

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cable for deepwater equipment, characterized in that: The invention comprises a plurality of conductive wires (100) and an oxygen tube (200), wherein the oxygen tube (200) is located close to the center of the cross section of the cable, the oxygen tube (200) is coaxially sleeved with a ferrule (300), the plurality of conductive wires (100) are twisted around the ferrule (300), and the ferrules (300) are spaced apart along the length direction of the oxygen tube (200).

2. A cable for deepwater equipment according to claim 1, characterized in that: A plurality of first arc grooves (310) are distributed on the outer circumference of the collar (300), the central axes of the first arc grooves (310) of two adjacent collars (300) are not coaxial, and the conductive wire (100) is embedded in the first arc groove (310).

3. A cable for deepwater equipment according to claim 2, characterized in that: The diameters of the plurality of first arc grooves (310) are different.

4. A cable for deepwater equipment according to claim 1, characterized in that: The ferrule (300) has different thicknesses in the axial direction. The ferrule (300) comprises a base ring portion (320) and a thickening block (330) detachably mounted on the base ring portion (320). The thickening blocks (330) are spaced apart along the circumference of the base ring portion (320). After being assembled, the thickening blocks (330) and the base ring portion (320) are used to contact a wire (100) with a large outer diameter.

5. A cable for deepwater equipment according to claim 4, characterized in that: The base ring portion (320) is provided with a second arc groove (321), the diameters of the second arc groove (321) are different, the thickening block (330) is provided with an extended arc groove (331), and the extended arc groove (331) of the thickening block (330) is coaxial with the corresponding second arc groove (321).

6. A cable for deepwater equipment according to claim 5, characterized in that: Positioning holes (322) are distributed on the circumference of the end surface of the base ring portion (320), and the thickening block (330) is fixedly connected with an insertion rod (332), and the insertion rod (332) is inserted into the positioning hole (322).

7. A cable for deepwater equipment according to claim 4, characterized in that: The outer peripheral side of the base ring portion (320) is provided with a slot (323) for the thickening block (330) to be inserted, the thickening block (330) is provided with a third arc groove (333), and the thickness of the thickening block (330) is greater than the thickness of the base ring portion (320).

8. A cable for deepwater equipment according to claim 7, characterized in that: The thicknesses of the plurality of thickening blocks (330) along the axial direction of the base ring portion (320) are different, and the thickness of the thickening block (330) and the diameter of the third circular arc groove (333) form a positive correlation.

9. A cable for deepwater equipment according to claim 7, characterized in that: The base ring portion (320) is provided with an insertion hole (324) on the inner wall of the slot (323), and the thickening block (330) is fixedly connected with an insertion rod (332), and the insertion rod (332) is inserted into the insertion hole (324).

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