Submarine cable burying plough putting and recovering auxiliary device and method

Abstract

The invention discloses a submarine cable burying plough putting and recovering auxiliary device and method. The device comprises a cross beam; the telescopic mechanism comprises two telescopic cylinders which are vertically hinged to the cross beam and are composed of upper cylinder bodies and lower cylinder bodies, and first automatic telescopic rods which are vertically hinged between the upper cylinder bodies and the lower cylinder bodies of the telescopic cylinders; the conical barrels are arranged at the lower ends of the telescopic barrels respectively, the clamping hooks are hinged to the interiors of the conical barrels respectively, inhaul cables are connected to the clamping hooks, and the inhaul cables are led out of the telescopic barrels or the conical barrels; the adjusting mechanism comprises a second automatic telescopic rod which is obliquely hinged between the cross beam and the upper cylinder body; and the lower end of the oscillation stopping rod is fixedly arranged on the embedded plough, and the upper end of the oscillation stopping rod is provided with an annular hole which is locked or unlocked with the clamping hook. The problem that an embedded plough cannot be safely put and recycled in the sea surface environment with large storm waves is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of submarine cable laying, in particular to a submarine cable burying plow launching and recovering auxiliary device and method. BACKGROUND

[0002] Submarine cable laying construction refers to laying submarine cable on seabed, wherein the submarine cable refers to submarine cable. When the submarine cable is launched from the sea surface to the seabed, a burying plow is needed to dig a trench on the seabed to form a groove, and the submarine cable is laid in the groove to realize continuous operation of laying and burying the submarine cable. The burying plow is launched from the construction ship to the sea water by a hoisting device, and the disadvantage is that when the burying plow is launched or recovered by the hoisting device, the hoisting cable and the burying plow will sway due to the influence of wind and waves on the sea surface, so that the burying plow is hoisted in an unstable state, thereby increasing the difficulty and risk of launching the burying plow, and even causing the burying plow to be unable to be launched into the sea water and fall on the seabed, and causing the burying plow to be unable to be recovered smoothly from the sea water to the construction ship. SUMMARY

[0003] The purpose of the present application is to provide a submarine cable burying plow launching and recovering auxiliary device and method to solve the problem that the burying plow is in an unstable state and cannot be launched or recovered due to the influence of wind and waves on the sea surface.

[0004] In order to solve the above technical problems, the present application provides a submarine cable burying plow launching and recovering auxiliary device, comprising: a cross beam arranged horizontally; a telescopic mechanism comprising two telescopic cylinders vertically hinged on the same side of the cross beam, the telescopic cylinder comprising an upper cylinder body and a lower cylinder body telescopically connected, a first automatic telescopic rod vertically hinged between the upper cylinder body and the lower cylinder body of each telescopic cylinder, the two telescopic cylinders being symmetrically distributed at both ends of the length direction of the cross beam, a conical cylinder being communicatively arranged at the lower end of each telescopic cylinder, a clasp being hinged in each conical cylinder, the clasp being connected with a control cable for controlling the rotation of the clasp along the hinge point, the control cable being led out from the telescopic cylinder or the conical cylinder; an adjusting mechanism comprising a second automatic telescopic rod obliquely hinged between the cross beam and the upper cylinder body, the adjusting mechanism and the telescopic mechanism being distributed on both sides of the cross beam; a roll damping rod, the lower end of the roll damping rod being used for fixedly arranging on the burying plow, the upper end of the roll damping rod being provided with a ring hole for locking or unlocking the clasp, when the roll damping rod is inserted into the conical cylinder, the clasp is rotated along the hinge point to the ring hole of the roll damping rod by tightening the control cable to lock the roll damping rod, and the clasp is rotated along the hinge point from the ring hole by loosening the control cable to unlock the roll damping rod.

[0005] Further, the submarine cable burying plough launching and recovering auxiliary device provided by the application is provided with hinge plates distributed at obtuse angles at the stretchable cylinder and the cross beam hinged with the second automatic stretchable rod, and the stretchable cylinder and the second automatic stretchable rod are hinged on the cross beam through the hinge plates respectively; the upper cylinder body is provided with a hinge seat at the upper end of the second automatic stretchable rod, and the second automatic stretchable rod is hinged on the upper cylinder body through the hinge seat; the stretchable cylinder is also provided with hinge seats on the side walls at the upper and lower ends of the stretchable cylinder hinged with the first automatic stretchable rod, and the first automatic stretchable rod is hinged on the upper and lower ends of the stretchable cylinder through the hinge seats respectively.

[0006] Further, the submarine cable burying plough launching and recovering auxiliary device provided by the application is provided with hinge plates distributed at obtuse angles at the stretchable cylinder and the cross beam hinged with the second automatic stretchable rod, and the stretchable cylinder and the second automatic stretchable rod are hinged on the cross beam through the hinge plates respectively; the upper cylinder body is provided with a hinge seat at the upper end of the second automatic stretchable rod, and the second automatic stretchable rod is hinged on the upper cylinder body through the hinge seat; the stretchable cylinder is also provided with hinge seats on the side walls at the upper and lower ends of the stretchable cylinder hinged with the first automatic stretchable rod, and the first automatic stretchable rod is hinged on the upper and lower ends of the stretchable cylinder through the hinge seats respectively.

[0007] Further, the submarine cable burying plough launching and recovering auxiliary device provided by the application is provided with hinge plates distributed at obtuse angles at the stretchable cylinder and the cross beam hinged with the second automatic stretchable rod, and the stretchable cylinder and the second automatic stretchable rod are hinged on the cross beam through the hinge plates respectively; the upper cylinder body is provided with a hinge seat at the upper end of the second automatic stretchable rod, and the second automatic stretchable rod is hinged on the upper cylinder body through the hinge seat; the stretchable cylinder is also provided with hinge seats on the side walls at the upper and lower ends of the stretchable cylinder hinged with the first automatic stretchable rod, and the first automatic stretchable rod is hinged on the upper and lower ends of the stretchable cylinder through the hinge seats respectively.

[0008] Further, the submarine cable burying plough launching and recovering auxiliary device provided by the application is provided with hinge plates distributed at obtuse angles at the stretchable cylinder and the cross beam hinged with the second automatic stretchable rod, and the stretchable cylinder and the second automatic stretchable rod are hinged on the cross beam through the hinge plates respectively; the upper cylinder body is provided with a hinge seat at the upper end of the second automatic stretchable rod, and the second automatic stretchable rod is hinged on the upper cylinder body through the hinge seat; the stretchable cylinder is also provided with hinge seats on the side walls at the upper and lower ends of the stretchable cylinder hinged with the first automatic stretchable rod, and the first automatic stretchable rod is hinged on the upper and lower ends of the stretchable cylinder through the hinge seats respectively.

[0009] Further, the submarine cable burying plough launching and recovering auxiliary device provided by the application is provided with hinge plates distributed at obtuse angles at the stretchable cylinder and the cross beam hinged with the second automatic stretchable rod, and the stretchable cylinder and the second automatic stretchable rod are hinged on the cross beam through the hinge plates respectively; the upper cylinder body is provided with a hinge seat at the upper end of the second automatic stretchable rod, and the second automatic stretchable rod is hinged on the upper cylinder body through the hinge seat; the stretchable cylinder is also provided with hinge seats on the side walls at the upper and lower ends of the stretchable cylinder hinged with the first automatic stretchable rod, and the first automatic stretchable rod is hinged on the upper and lower ends of the stretchable cylinder through the hinge seats respectively. The fixed frame is connected between the upper and lower ends of the two upper cylinder bodies, and the fixed frame comprises a center plate and four diagonal connecting inclined rods connected to the center plate, and horizontal rods are horizontally connected between the two inclined rod end portions above and below the center plate.

[0010] Further, the submarine cable burying plough launching and recovering auxiliary device provided by the application is provided with hinge plates distributed at obtuse angles at the stretchable cylinder and the cross beam hinged with the second automatic stretchable rod, and the stretchable cylinder and the second automatic stretchable rod are hinged on the cross beam through the hinge plates respectively; the upper cylinder body is provided with a hinge seat at the upper end of the second automatic stretchable rod, and the second automatic stretchable rod is hinged on the upper cylinder body through the hinge seat; the stretchable cylinder is also provided with hinge seats on the side walls at the upper and lower ends of the stretchable cylinder hinged with the first automatic stretchable rod, and the first automatic stretchable rod is hinged on the upper and lower ends of the stretchable cylinder through the hinge seats respectively. The connecting rod is connected between the lower ends of the two lower cylinder bodies.

[0011] Further, the submarine cable burying plough launching and recovering auxiliary device provided by the application is provided with hinge plates distributed at obtuse angles at the stretchable cylinder and the cross beam hinged with the second automatic stretchable rod, and the stretchable cylinder and the second automatic stretchable rod are hinged on the cross beam through the hinge plates respectively; the upper cylinder body is provided with a hinge seat at the upper end of the second automatic stretchable rod, and the second automatic stretchable rod is hinged on the upper cylinder body through the hinge seat; the stretchable cylinder is also provided with hinge seats on the side walls at the upper and lower ends of the stretchable cylinder hinged with the first automatic stretchable rod, and the first automatic stretchable rod is hinged on the upper and lower ends of the stretchable cylinder through the hinge seats respectively. The limiting rod is U-shaped and connected to the connecting rod, and a limiting space is formed between the limiting rod and the connecting rod.

[0012] In order to solve the above technical problems, the application also provides a submarine cable burying plough launching and recovering method, which adopts the submarine cable burying plough launching and recovering auxiliary device, and comprises a burying plough launching method and a burying plough recovering method. The anti-rolling rod of the submarine cable burying plough launching and recovering auxiliary device is installed on the burying plough on the construction ship, the submarine cable burying plough launching and recovering auxiliary device is hoisted to a predetermined height by the hoisting equipment through the cross beam, the conical barrel of the submarine cable burying plough launching and recovering auxiliary device is aligned with the anti-rolling rod, the anti-rolling rod is inserted into the conical barrel, the cable is tensioned to lock the anti-rolling rod by the hook, and the submarine cable burying plough launching and recovering auxiliary device is rigidly connected with the burying plough; the steel wire rope is connected on the burying plough, and the steel wire rope is wound on the cross beam of the submarine cable burying plough launching and recovering auxiliary device; The submarine cable burying plough launching and recovering auxiliary device and the burying plough which are rigidly connected are hoisted in the vertical direction by the hoisting equipment to the air above the sea; Before the burying plough is launched, the burying plough and the submarine cable burying plough launching and recovering auxiliary device sway and tilt under the action of the wind and wave on the sea surface, the telescopic mechanism, the anti-rolling rod and the burying plough connected with the anti-rolling rod are synchronously rotated and adjusted to be in the vertical direction by the second automatic telescopic rod, the telescopic mechanism is controlled to be elongated, the submarine cable burying plough launching and recovering auxiliary device and the burying plough which are rigidly connected are controlled to be lowered to the sea water in the vertical direction, the anti-rolling rod is unlocked from the hook by loosening the cable, the burying plough connected with the anti-rolling rod is separated from the submarine cable burying plough launching and recovering auxiliary device, and the burying plough connected with the anti-rolling rod is launched to the seabed in the vertical direction by controlling the steel wire rope.

[0013] Further, the submarine cable burying plough launching and recovering method provided by the present application comprises: The burying plough connected with the anti-rolling rod is hoisted to the sea surface out of the water surface in the vertical direction by controlling the steel wire rope, the submarine cable burying plough launching and recovering auxiliary device after the anti-rolling rod is separated is hoisted in the air above the sea surface at the burying plough recovering position by the hoisting equipment, the telescopic mechanism is controlled to be elongated so that the anti-rolling rod is inserted into the conical barrel, the anti-rolling rod is locked by the hook by tensioning the cable, the submarine cable burying plough launching and recovering auxiliary device is rigidly connected with the burying plough, the telescopic mechanism is controlled to be contracted, the burying plough is separated from the sea water and rises to the air above the sea surface, the submarine cable burying plough launching and recovering auxiliary device and the burying plough which are rigidly connected sway and tilt under the action of the wind and wave on the sea surface, the telescopic mechanism, the anti-rolling rod and the burying plough connected with the anti-rolling rod are synchronously rotated and adjusted to be in the vertical direction by the second automatic telescopic rod, the submarine cable burying plough launching and recovering auxiliary device and the burying plough which are rigidly connected are recovered to the construction ship in the vertical direction state by the hoisting equipment.

[0014] Compared with the prior art, the present application has the following beneficial effects: The submarine cable burying plough launching and recovering auxiliary device and method provided by the application forms rigid connection with the burying plough through the submarine cable burying plough launching and recovering auxiliary device, and the burying plough can be controlled to be away from or enter the water surface through the telescopic mechanism, so that the stability of the initial launching or recovering is ensured; when the burying plough is launched, the burying plough is hoisted to above the sea surface as a whole, then the burying plough swings under the action of the sea surface wind and wave, the second automatic telescopic rod is adjusted in extension or retraction, the telescopic mechanism, the anti-rolling rod and the burying plough connected therewith are synchronously rotated and adjusted to be vertical relative to the cross beam, so that the submarine cable burying plough launching and recovering auxiliary device and the burying plough in rigid connection are kept vertical as a whole, the burying plough can be hoisted in the gravity balance stable state under the sea surface wind and wave, and the problem that the burying plough is unstable in gravity center and falls off, is damaged or causes hoisting safety accidents is solved; the burying plough connected with the anti-rolling rod is lowered into the sea water through the extension of the telescopic mechanism, the anti-rolling rod and the hook are unlocked by loosening the cable, the submarine cable burying plough launching and recovering auxiliary device and the burying plough are separated, the burying plough connected with the anti-rolling rod is launched along the vertical direction to the seabed by controlling the lowering of the steel wire rope, so that the burying plough can still be safely launched under the condition of large sea surface wind and wave, and the problem that the burying plough cannot be safely launched under the influence of the sea surface wind and wave is solved.

[0015] The submarine cable burying plough launching and recovering auxiliary device and method provided by the application, when the burying plough is recovered, the burying plough connected with the anti-rolling rod is hoisted to the state of not being out of the water surface along the vertical direction by controlling the hoisting of the steel wire rope, the submarine cable burying plough launching and recovering auxiliary device after the anti-rolling rod is separated is hoisted above the sea surface at the burying plough recovery place by the hoisting equipment, the submarine cable burying plough launching and recovering auxiliary device above the sea surface and the burying plough in the state of not being out of the water surface form rigid connection; the burying plough is separated from the sea water and rises to above the sea surface by the telescopic mechanism in contraction adjustment, the submarine cable burying plough launching and recovering auxiliary device and the burying plough in rigid connection swing under the action of the sea surface wind and wave, the telescopic mechanism, the anti-rolling rod and the burying plough connected therewith are synchronously rotated and adjusted to be vertical relative to the cross beam through the second automatic telescopic rod in extension or retraction adjustment, so that the gravity balance stable state of the submarine cable burying plough launching and recovering auxiliary device and the burying plough in rigid connection as a whole is ensured, the burying plough launching and recovering auxiliary device and the burying plough in the gravity balance state and in the vertical direction state are hoisted and recovered to the construction ship as a whole by the hoisting equipment, the burying plough can still be safely recovered under the condition of large sea surface wind and wave, and the problem that the burying plough cannot be safely recovered under the influence of the sea surface wind and wave is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a three-dimensional structure schematic view of the submarine cable burying plough launching and recovering auxiliary device and the burying plough in connection state; Figure 2is a schematic diagram of the rear view structure of the submarine cable burying plough launching and recovering auxiliary device and the burying plough in the connected state; Figure 3 is a schematic diagram of the rear view structure of the submarine cable burying plough launching and recovering auxiliary device and the burying plough in the separated state; Figure 4 is a schematic diagram of the structure of the submarine cable burying plough launching and recovering auxiliary device after the disconnecting of the stabilizing rod; Figure 5 is a schematic diagram of the structure of the submarine cable burying plough launching and recovering auxiliary device and the burying plough in the connected state and the steel wire rope arranged on the burying plough; Figure 6 is a schematic diagram of the structure of the hook; Figure 7 is a schematic diagram of the structure of the cross beam section; Figure 8 is a schematic diagram of the structure of the upper cylinder; Figure 9 is a schematic diagram of the structure of the lower cylinder; Figure 10 is a schematic diagram of the structure of the sliding rail and the sliding block cooperation relationship; Figure 11 is a schematic diagram of the structure of the fixing frame; In the drawings: 100, submarine cable burying plough launching and recovering auxiliary device, 110, cross beam, 111, hinged plate, 120, telescopic mechanism, 121, upper cylinder, 122, lower cylinder, 123, conical cylinder, 124, first automatic telescopic rod, 125, hinged seat, 126, sliding rail, 127, sliding block, 130, second automatic telescopic rod, 140, stabilizing rod, 150, locking mechanism, 151, hook, 151-1, hook body, 151-2, ear hole, 151-3, rope passing hole, 152, drawstring, 153, ring hole, 160, fixing frame, 161, center plate, 162, inclined rod, 163, horizontal rod, 170, connecting rod, 180, rope limiting rod; 200, burying plough; 300, steel wire rope. DETAILED DESCRIPTION

[0017] The present application will be described in detail below with reference to the drawings: the advantages and features of the present application will be clearer according to the following description. It should be noted that the drawings are very simplified and all use non-precise proportions, only for the purpose of facilitating and clearly assisting the description of the embodiments of the present application.

[0018] Please refer to Figures 1 to 11 The embodiment of the present application provides a submarine cable burying plough launching and recovering auxiliary device 100, which comprises a cross beam 110, a telescopic mechanism 120, an adjusting mechanism, a stabilizing rod 140 and a locking mechanism 150, wherein: The crossbeam 110 is horizontally arranged.

[0019] The telescopic mechanism 120 comprises two telescopic cylinders vertically hinged on the same side of the crossbeam 110, the telescopic cylinders comprising an upper cylinder body 121 and a lower cylinder body 122 telescopically connected, and a first automatic telescopic rod 124 vertically hinged between the upper cylinder body 121 and the lower cylinder body 122 of each telescopic cylinder, the two telescopic cylinders being symmetrically distributed at two ends of the crossbeam 110 in the length direction, a conical cylinder 123 being communicatively arranged at the lower end of each telescopic cylinder, a clasp 151 being hinged in each conical cylinder 123, the clasp 151 being connected with a cable 152 for controlling the rotation of the clasp 151 along the hinge point, the cable 152 being led out from the telescopic cylinder or the conical cylinder 123. Wherein Figure 2 The cable 152 is led through the lower cylinder body 122 and led out from the upper cylinder body 121, and the cable 152 is led into the lower cylinder body 122 and the upper cylinder body 121 and led out from the hinge seat 125 on the upper cylinder body 121.

[0020] The adjusting mechanism comprises a second automatic telescopic rod 130 obliquely hinged between the crossbeam 110 and the upper cylinder body 121, the adjusting mechanism and the telescopic mechanism 120 being distributed on both sides of the crossbeam 110. Wherein the first automatic telescopic rod 124 and the second automatic telescopic rod 130 can be hydraulic cylinders.

[0021] The damping rod 140 is fixedly arranged at the lower end of the buried plow 200, and the upper end of the damping rod 140 is provided with a ring hole 153 for locking or unlocking the clasp 151, when the damping rod 140 is inserted into the conical cylinder 123, the clasp 151 is rotated along the hinge point to the ring hole 153 of the damping rod 140 by tightening the cable 152 to lock the damping rod 140, and the clasp 151 is rotated along the hinge point to be separated from the ring hole 153 by loosening the cable 152 to unlock the damping rod 140. Wherein the ring hole 153 on the damping rod 140, the clasp 151 and the cable 152 form a locking mechanism 150.

[0022] Please refer to Figure 5 , Figure 2 and Figure 3 , the embodiment of the application further provides a submarine cable buried plow launching and recovering method, adopting the submarine cable buried plow launching and recovering auxiliary device 100 of the above embodiment, comprising a buried plow 200 launching method and a buried plow 200 recovering method, wherein the buried plow 200 launching method comprises: Step S401, on the construction ship, the heave cable burying plow is installed on the heave cable burying plow launching and recovering auxiliary device 100, the heave cable burying plow launching and recovering auxiliary device 100 is hoisted to a predetermined height by the hoisting equipment, the conical barrel 123 of the heave cable burying plow launching and recovering auxiliary device 100 is aligned with the anti-rolling rod 140, the anti-rolling rod 140 is inserted into the conical barrel 123, the cable 152 is tensioned to lock the anti-rolling rod 140 by the hook 151, and the heave cable burying plow launching and recovering auxiliary device 100 is rigidly connected with the heave cable burying plow 200; the steel wire rope 300 is connected on the heave cable burying plow 200, and the steel wire rope 300 is wound on the beam 110 of the heave cable burying plow launching and recovering auxiliary device 100. The anti-rolling rod 140 can be connected to the frame of the heave cable burying plow 200 by the flange and the flange bolts thereon. Correspondingly, the frame of the heave cable burying plow 200 is also provided with a flange. The heave cable burying plow launching and recovering auxiliary device 100 and the heave cable burying plow 200 rigidly connected can inhibit the heave cable burying plow 200 from swinging, so as to avoid the heave cable burying plow 200 from swinging when it leaves the construction ship, thereby stabilizing the heave cable burying plow 200.

[0023] Step S402, the heave cable burying plow launching and recovering auxiliary device 100 and the heave cable burying plow 200 rigidly connected are hoisted in the vertical direction by the hoisting equipment.

[0024] Step S403, before the heave cable burying plow 200 is launched, the heave cable burying plow launching and recovering auxiliary device 100 and the heave cable burying plow 200 synchronously swing and tilt under the action of the sea wind and waves, the second automatic telescopic rod 130 is adjusted in extension and contraction, the telescopic mechanism 120, the anti-rolling rod 140 and the heave cable burying plow 200 connected thereto are synchronously rotated and adjusted to the vertical direction relative to the beam 110, the telescopic mechanism 120 is controlled to be elongated, the heave cable burying plow launching and recovering auxiliary device 100 and the heave cable burying plow 200 rigidly connected are lowered to the sea water in the vertical direction, the anti-rolling rod 140 is unlocked from the hook 151 by loosening the cable 152, the heave cable burying plow 200 connected with the anti-rolling rod 140 is separated from the heave cable burying plow launching and recovering auxiliary device 100, and the heave cable burying plow 200 connected with the anti-rolling rod 140 is launched to the seabed in the vertical direction by controlling the steel wire rope 300.

[0025] Please refer to Figures 2 to 3 and Figure 5 The heave cable burying plow launching and recovering method provided by the embodiment of the application comprises: Step S404, control the steel wire rope 300 to lift the buried plow 200 connected with the stabilizer bar 140 to the water surface out of water state in the vertical direction, the submarine cable buried plow after the stabilizer bar 140 is separated from the launching and recovery auxiliary device 100 is hoisted by the hoisting equipment above the sea surface at the buried plow 200 recovery place, control the telescopic mechanism 120 to extend and make the stabilizer bar 140 insert into the tapered cylinder 123, tighten the cable 152 to lock the stabilizer bar 140 and the hook 151, make the submarine cable buried plow launching and recovery auxiliary device 100 and the buried plow 200 form rigid connection;Control the telescopic mechanism 120 to contract and make the buried plow 200 separate from the sea water and rise to the sea surface, the submarine cable buried plow launching and recovery auxiliary device 100 and the buried plow 200 form rigid connection under the action of sea surface wind and wave, and the swing causes the inclination, through the second automatic telescopic rod 130 to adjust the extension and contraction, make the telescopic mechanism 120, the stabilizer bar 140 and the buried plow 200 connected with it rotate synchronously relative to the cross beam 110 and adjust to the vertical direction, through the hoisting equipment to recover the submarine cable buried plow launching and recovery auxiliary device 100 and the buried plow 200 in the vertical direction state to the construction ship in whole, that is to avoid the problem that the buried plow 200 in the air after leaving the water surface is in swing and causes imbalance, instability and difficult recovery.

[0026] The submarine cable buried plow launching and recovery auxiliary device 100 and the method provided by the embodiment of the application form rigid connection between the submarine cable buried plow launching and recovery auxiliary device 100 and the buried plow 200, the telescopic mechanism 120 can control the buried plow 200 to leave the water surface or enter the water surface, so as to ensure the stability at the initial stage of launching or recovery;When the buried plow 200 is launched, after the buried plow 200 swings under the action of sea surface wind and wave after being hoisted to the sea surface in whole, the telescopic mechanism 120, the stabilizer bar 140 and the buried plow 200 connected with it are adjusted to the vertical direction by the second automatic telescopic rod 130, so that the submarine cable buried plow launching and recovery auxiliary device 100 and the buried plow 200 form rigid connection and keep in the vertical direction, the buried plow 200 can be hoisted in the state of gravity balance and stability under the sea surface wind and wave, and the problem that the center of gravity is unstable and the buried plow 200 falls off and is damaged or a hoisting safety accident occurs is prevented;The telescopic mechanism 120 is extended to lower the buried plow 200 connected with the stabilizer bar 140 into the sea water, the stabilizer bar 140 is unlocked from the hook 151 by loosening the cable 152, the submarine cable buried plow launching and recovery auxiliary device 100 is separated from the buried plow 200, and the buried plow 200 connected with the stabilizer bar 140 is launched to the seabed in the vertical direction by controlling the steel wire rope 300, so that the buried plow 200 can be safely launched under the condition of large sea surface wind and wave, and the problem that the buried plow 200 cannot be safely launched for construction under the influence of sea surface wind and wave is overcome.

[0027] The submarine cable burying plow launching and recovering auxiliary device 100 and method provided by the embodiment of the present application can control the steel wire rope 300 to pull back and lift the submarine cable burying plow 200 connected with the anti-rolling rod 140 to the state of being above the sea surface but not out of the water in the vertical direction during the recovering of the burying plow 200, and the submarine cable burying plow launching and recovering auxiliary device 100 after the anti-rolling rod 140 is separated is hoisted by the hoisting equipment above the sea surface at the recovering position of the burying plow 200, and the submarine cable burying plow launching and recovering auxiliary device 100 above the sea surface is rigidly connected with the burying plow 200 in the state of being above the sea surface but not out of the water; the burying plow 200 is separated from the sea water and lifted to the air above the sea surface by the contraction adjustment of the telescopic mechanism 120, after the submarine cable burying plow launching and recovering auxiliary device 100 and the burying plow 200 rigidly connected with each other sway under the action of the wind and waves on the sea surface, the telescopic mechanism 120, the anti-rolling rod 140 and the burying plow 200 connected with the anti-rolling rod 140 are synchronously rotated and adjusted to the vertical direction by the telescopic adjustment of the second automatic telescopic rod 130, so as to ensure the stable state of the gravity balance of the whole submarine cable burying plow launching and recovering auxiliary device 100 and the burying plow 200 rigidly connected with each other, and the burying plow 200 in the state of the gravity balance and the submarine cable burying plow launching and recovering auxiliary device 100 are hoisted and recovered to the construction ship in the vertical direction, so that the burying plow 200 can be safely recovered even if the wind and waves on the sea surface are strong, and the problem that the burying plow 200 cannot be safely recovered due to the influence of the wind and waves on the sea surface is solved.

[0028] Please refer to Figure 1 , Figures 8 to 9 In order to improve the reliability of the hinged connection, the submarine cable burying plow launching and recovering auxiliary device 100 and method provided by the embodiment of the present application is provided with hinged plates 111 distributed at obtuse angles at the positions where the telescopic cylinder and the horizontal beam 110 hinged with the second automatic telescopic rod 130 are located, and the telescopic cylinder and the second automatic telescopic rod 130 are hinged to the horizontal beam 110 through the hinged plates 111; a hinged seat 125 is arranged at the position where the upper cylinder body 121 hinged with the second automatic telescopic rod 130 is located, and the second automatic telescopic rod 130 is hinged to the upper cylinder body 121 through the hinged seat 125; hinged seats 125 are also arranged on the side walls at the upper and lower ends of the telescopic cylinder hinged with the first automatic telescopic rod 124, and the first automatic telescopic rod 124 is hinged to the upper and lower ends of the telescopic cylinder through the hinged seats 125.

[0029] Please refer to Figure 1 , Figures 8 to 9 In order to realize the telescopic adjustment of the telescopic cylinder, the submarine cable burying plow launching and recovering auxiliary device 100 and method provided by the embodiment of the present application are provided with an upper cylinder body 121 as an outer cylinder and a lower cylinder body 122 as an inner cylinder, or an upper cylinder body 121 as an inner cylinder and a lower cylinder body 122 as an outer cylinder.

[0030] Please refer to Figure 1、 Figures 8 to 10 In order to improve the reliability of the telescopic adjustment of the upper cylinder 121 and the lower cylinder 122 of the telescopic cylinder, the submarine cable burying plow launching and recovering auxiliary device 100 and the method provided by the embodiment of the present application, the outer cylinder and the inner cylinder are both square cylinders, four sides of the outer wall of the inner cylinder are provided with sliding rails 126 along the length direction, and the outer cylinder is provided with sliding blocks 127 connected with the sliding rails 126 in a sliding mode. The sliding blocks 127 can also limit the sliding stroke of the sliding rails 126, so that the upper and lower cylinders are prevented from being separated.

[0031] Please refer to Figure 4 and Figure 6 The hook 151 includes a hook body 151-1, an ear plate 151-2 and a rope passing hole 151-3, the hook 151 is hinged in the conical cylinder 123 through the ear plate 151-2 with a hinge hole, and the inhaul cable 152 is connected with the rope passing hole 151-3.

[0032] Please refer to Figure 1 and Figure 11 In order to improve the stability, the submarine cable burying plow launching and recovering auxiliary device 100 and the method provided by the embodiment of the present application can further include: The fixing frame 160 is connected between the upper and lower ends of the two upper cylinders 121, the fixing frame 160 includes a center plate 161 and four diagonal connecting inclined rods 162, and the horizontal rods 163 are respectively connected between the end portions of the two inclined rods 162 above and below the center plate 161. The two ends of the horizontal rod 163 above the center plate 161 are fixed to the upper ends of the two upper cylinders 121, and the two ends of the horizontal rod 163 below the center plate 161 are fixed to the lower ends of the two upper cylinders 121. The fixing frame 160 ensures the structural stability between the two upper cylinders 121, so that the inclination or deformation of the two upper cylinders 121 is prevented.

[0033] Please refer to Figure 1 In order to improve the stability of the two lower cylinders 122, the submarine cable burying plow launching and recovering auxiliary device 100 and the method provided by the embodiment of the present application can further include: The connecting rod 170 is connected between the lower ends of the two lower cylinders 122. The connecting rod 170 ensures the structural stability of the lower end of the lower cylinder 122, so that the inward or outward deviation of the lower end is prevented.

[0034] Please refer to Figure 1 and Figure 5 In order to limit the steel wire rope 300 and prevent it from causing traction instability of the burying plow 200 after being separated from the submarine cable burying plow launching and recovering auxiliary device 100, the submarine cable burying plow launching and recovering auxiliary device 100 and the method provided by the embodiment of the present application can further include: The limit rope rod 180 is U-shaped and connected to the connecting rod 170, and a limit rope space is formed between the limit rope rod 180 and the connecting rod 170. At this time, the steel wire rope 300 wound on the cross beam 110 can be arranged in and limited in the limit rope space formed between the limit rope rod 180 and the connecting rod 170.

[0035] The submarine cable burying plow launching and recovering auxiliary device 100 and method provided by the embodiment of the present application is an improvement on the launching and recovering method of the burying plow 200. The submarine cable burying plow launching and recovering auxiliary device 100 is rigidly connected to the burying plow 200. When the burying plow 200 is tilted and unstable due to the swing caused by the sea surface wind and wave, the tilt angle of the burying plow 200, the second automatic telescopic rod 130 adjusting mechanism 120, the roll damping rod 140 and the burying plow 200 connected thereto are changed to the vertical direction or close to the vertical direction, so as to ensure the stable launching of the burying plow 200 in the sea surface wind and wave environment. The locking mechanism 150 controls the separation or connection of the burying plow 200 and the submarine cable burying plow launching and recovering auxiliary device 100, and cooperates with the steel wire rope 300 to realize the safe launching of the burying plow 200 or the overall safe recovery of the burying plow 200 and the submarine cable burying plow launching and recovering auxiliary device 100, thereby overcoming the problem that the burying plow 200 cannot be safely launched or recovered in the extreme sea conditions such as large sea surface wind and wave. It helps to broaden the selection range of the window period of submarine cable laying operation.

[0036] The submarine cable burying plow launching and recovering auxiliary device 100 and method provided by the embodiment of the present application can effectively control the swing range of the burying plow 200 in the large sea wave sea condition, complete the safe and stable launching and recovering operation, and help to improve the submarine cable laying level and prolong the operation window period.

[0037] The present application is not limited to the above-mentioned specific embodiments. Obviously, the above-described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application. Those skilled in the art can make other levels of modifications and changes to the present application. Therefore, if these modifications and changes of the present application belong to the scope of the claims of the present application, the present application also intends to include these modifications and changes.

Claims

1. A submarine cable burying plough launch and recovery aid characterised in that, The utility model relates to a kind of sea cable burying plough launching and recovering auxiliary device, including: Beam, horizontally arranged; Expansion mechanism, including two telescopic cylinders vertically articulated on the same side of the beam, the telescopic cylinder includes telescopic connection upper cylinder and lower cylinder, the first automatic telescopic rod vertically articulated between the upper cylinder and the lower cylinder of each telescopic cylinder;Two telescopic cylinders are symmetrically distributed at both ends of the length direction of beam, and the tapered cylinder is communicated and arranged at the lower end of each telescopic cylinder, the hook is articulated in each tapered cylinder, the pull cable for controlling the rotation of the hook along the articulation point is connected to the hook, and the pull cable is led out from the telescopic cylinder or the tapered cylinder; Adjusting mechanism, including the second automatic telescopic rod obliquely articulated between the beam and the upper cylinder, and the adjusting mechanism is distributed on both sides of the beam with the expansion mechanism; The lower end of the anti-rolling rod is used to be fixedly arranged on the burying plough, and the upper end is provided with a ring hole for locking or unlocking with the hook, when the anti-rolling rod is inserted into the tapered cylinder, the hook is rotated along the articulation point to the ring hole of the anti-rolling rod by tightening the pull cable to lock the anti-rolling rod, and the hook is separated from the ring hole by loosening the pull cable to unlock the anti-rolling rod.

2. A submarine cable burial plough launch and recovery aid according to claim 1, characterised in that, The beam articulated with the telescopic cylinder and the second automatic telescopic rod is respectively provided with an articulation plate distributed at an obtuse angle, and the telescopic cylinder and the second automatic telescopic rod are respectively articulated on the beam through the articulation plate;The upper cylinder articulated with the second automatic telescopic rod is provided with an articulation seat, and the second automatic telescopic rod is articulated on the upper cylinder through the articulation seat;The side walls at the upper and lower ends of the telescopic cylinder articulated with the first automatic telescopic rod are also provided with articulation seats, and the first automatic telescopic rod is respectively articulated at the upper and lower ends of the telescopic cylinder through the articulation seats.

3. A submarine cable burial plough launch and recovery aid according to claim 1, characterised in that, The upper cylinder is an outer cylinder, and the lower cylinder is an inner cylinder, or the upper cylinder is an inner cylinder, and the lower cylinder is an outer cylinder.

4. A submarine cable burial plough launch and recovery aid according to claim 3, characterised in that, The outer cylinder and the inner cylinder are both square tubes, and four sides of the outer wall of the inner cylinder are provided with sliding rails along the length direction, and the outer cylinder is provided with sliding blocks connected with the sliding rails.

5. A submarine cable burial plough launch and recovery aid according to claim 1 characterised in that, The hook includes a hook body, an ear plate and a rope passing hole on the hook body, the hook is articulated in the tapered cylinder through the ear plate with an articulation hole, and the pull cable is connected with the rope passing hole.

6. A submarine cable burial plough launch and recovery aid according to claim 1 characterised in that, Further comprising: A fixing frame is connected between the upper and lower ends of the two upper cylinders, and the fixing frame comprises a center plate and four diagonal connecting inclined rods connected to the center plate.

7. A submarine cable burial plough launch and recovery aid according to claim 1 characterised in that, Further comprising: A connecting rod is connected between the lower ends of the two lower cylinders.

8. A submarine cable burial plough launch and recovery aid according to claim 7, characterised in that, Further comprising: A rope limiting rod is connected to the connecting rod, and a rope limiting space is formed between the rope limiting rod and the connecting rod.

9. A method of launching and recovering a submarine cable burial plough, characterised in that, The sea cable burying plough launching and recovering auxiliary device of any one of claims 1-8 is used, including a burying plough launching method and a burying plough recovering method, wherein the burying plough launching method comprises: The anti-rolling rod of the submarine cable burying plough launching and recovering auxiliary device is installed on the burying plough, the submarine cable burying plough launching and recovering auxiliary device is hoisted to a predetermined height by the hoisting equipment, the conical barrel of the submarine cable burying plough launching and recovering auxiliary device is aligned with the anti-rolling rod, the anti-rolling rod is inserted into the conical barrel, the cable is tensioned to lock the anti-rolling rod by the hook, and the submarine cable burying plough launching and recovering auxiliary device is rigidly connected with the burying plough; The hoisting equipment is used to hoist the submarine cable burying plough launching and recovering auxiliary device and the burying plough in the vertical direction to the sea surface. Before the burying plough is launched, the burying plough and the submarine cable burying plough launching and recovering auxiliary device sway and tilt under the action of the sea wind and waves, the second automatic telescopic rod is used for telescopic adjustment, the telescopic mechanism, the anti-rolling rod and the burying plough connected with the anti-rolling rod are synchronously rotated and adjusted to the vertical direction, the telescopic mechanism is controlled to be elongated, the submarine cable burying plough launching and recovering auxiliary device and the burying plough are lowered to the sea water in the vertical direction, the anti-rolling rod is unlocked from the hook, the burying plough connected with the anti-rolling rod is separated from the submarine cable burying plough launching and recovering auxiliary device, and the burying plough connected with the anti-rolling rod is launched to the seabed in the vertical direction by controlling the wire rope.

10. A method of launching and recovering a cable plough according to claim 9, characterised in that, The burying plough recovering method comprises the following steps: The burying plough connected with the anti-rolling rod is hoisted to the sea surface out of the water by controlling the wire rope, the submarine cable burying plough launching and recovering auxiliary device is hoisted above the sea surface by the hoisting equipment, the telescopic mechanism is controlled to be elongated, the anti-rolling rod is inserted into the conical barrel, the anti-rolling rod is locked by the hook by tensioning the cable, the submarine cable burying plough launching and recovering auxiliary device is rigidly connected with the burying plough, the telescopic mechanism is controlled to be contracted, the burying plough is separated from the sea water and rises to the sea surface, the burying plough and the submarine cable burying plough launching and recovering auxiliary device rigidly connected with each other sway and tilt under the action of the sea wind and waves, the second automatic telescopic rod is used for telescopic adjustment, the telescopic mechanism, the anti-rolling rod and the burying plough connected with the anti-rolling rod are synchronously rotated and adjusted to the vertical direction, and the submarine cable burying plough launching and recovering auxiliary device and the burying plough rigidly connected with each other are recovered to the construction ship in the vertical direction by the hoisting equipment.

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