Protection device for submarine cable burying plough inlet

Abstract

The utility model relates to the technical field of submarine cable installation auxiliary equipment, in particular to a protection device for an entrance of a submarine cable burying plough, which comprises a burying plough and is characterized in that a trumpet-shaped cable guide port is fixed at the entrance of the upper end of the burying plough, and a plurality of installation frames are longitudinally arranged on the cable guide port; and a plurality of buffer rods are arranged on the inner circumferential side of the mounting frame, so that the submarine cable can extrude the buffer rods when swinging at the inlet of the burying plough, and the buffer effect is achieved. According to the utility model, the submarine cable can extrude the buffer rod when swinging at the inlet of the burying plough, so that the buffer effect is achieved, the position of the inlet of the burying plough has higher safety, and the final submarine cable construction quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a submarine cable installation auxiliary equipment technical field, especially a protection device for submarine cable burying plough entrance. BACKGROUND

[0002] The submarine cable is the energy blood vessel of the marine facility, and along with the rapid development of offshore wind power in recent years, a large amount of offshore wind power cable laying is brought about.Meanwhile, along with the country gradually increasing the development of offshore oil, a large amount of submarine cable laying is also carried out.The submarine cable is laid on the seabed, and the change of seabed form has a great influence on submarine cable laying and submarine cable life.Because the submarine cable is laid on the seabed for a long time, there is a risk of being damaged by fishing operations or water drop, therefore the submarine cable needs to be buried in the seabed to a certain depth.At present, burying plough is used for construction, and through burying plough, laying and burying are realized at the same time, so as to improve work efficiency.However, when the submarine cable passes through the burying plough, it is affected by the moving speed of the ship, swell and other factors, and will swing at the entrance of the burying plough, and the speed difference of the cable laying of the construction ship will also cause the submarine cable to accumulate at the entrance of the burying plough, thereby causing potential damage risk, and how to use the submarine cable to safely enter the burying plough and improve construction quality is a problem to be solved urgently. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a protection device for the entrance of a burying plough for submarine cable, so that when the submarine cable swings at the entrance of the burying plough, the buffer rod can be extruded, thereby playing a buffering role.

[0004] The utility model realizes the above-mentioned purpose by adopting the following technical scheme:

[0005] A protection device for the entrance of a burying plough for submarine cable, comprising a burying plough, a horn-shaped cable guide is fixed at the upper end entrance of the burying plough, and a plurality of installation frames are longitudinally arranged on the cable guide; a plurality of buffer rods are arranged on the inner circumferential side of the installation frame, so that when the submarine cable swings at the entrance of the burying plough, the buffer rod can be extruded, thereby playing a buffering role.

[0006] Preferably, one end of the buffer rod close to the installation frame is fixed with a guide shaft, the guide shaft penetrates the installation frame and extends to the outside of the installation frame, and a spring is arranged on the guide shaft.

[0007] Preferably, one end of the buffer rod close to the installation frame is fixed with a limiting rod, the limiting rod penetrates the installation frame, and a pressure sensor is arranged on the limiting rod.

[0008] Preferably, the installation frame comprises two U-shaped rods opposite to each other, two connecting rods are arranged between the two U-shaped rods, and the connecting rod is connected with the vertical rod of the U-shaped rod through a connecting sleeve.

[0009] Preferably, the burying plough is arranged on a machine frame, and a top of the machine frame is fixed with a sonar through a support.

[0010] Preferably, the sonar has a sheath.

[0011] Preferably, two legs on the same side of the machine frame are fixed on a sliding shoe.

[0012] The utility model discloses beneficial effects:

[0013] (1) in the utility model provides an embodiment, and the upper end entrance of burying plough is fixed with the horn -shaped cable guide, can play the guiding effect to the submarine cable, makes the submarine cable can smoothly enter burying plough from the entrance of burying plough.

[0014] (2) in an embodiment of the utility model, when the submarine cable extrudes the buffer rod, drives the limit rod to slide, thereby drives the pressure sensor to move towards the mounting frame, when the pressure sensor touches the mounting frame and sends out a signal, so that the staff adjusts the cable.

[0015] (3) in an embodiment of the utility model, through the connecting sleeve, the connecting rod can be conveniently disassembled, to meet the need of the submarine cable construction side extraction operation.

[0016] The utility model makes the submarine cable swing when entering the burying plough and extrude the buffer rod, thereby playing the buffering effect, and the burying plough entrance position has higher safety, guarantees the final submarine cable construction quality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the structural schematic diagram of the utility model.

[0018] Fig. 2 It is the front view schematic diagram of the utility model.

[0019] Fig. 3 It is the structural schematic diagram of the cable guide.

[0020] In the drawing: burying plough 1, cable guide 2, mounting frame 21, buffer rod 22, guide shaft 23, spring 24, limit rod 25, pressure sensor 26, U-shaped rod 211, connecting rod 212, connecting sleeve 213, machine frame 3, support 4, sonar 5, sheath 6, sliding shoe 7. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings.

[0022] As Figs. 1-3As shown in the utility model provides an embodiment, the embodiment provides a kind of for submarine cable burying plough entrance protection device, including a burying plough 1, the upper end entrance of the burying plough 1 is fixed with horn-shaped fairlead 2, submarine cable can be guided, so that submarine cable can smoothly enter burying plough 1 from the entrance of burying plough 1 into burying plough 1.

[0023] The end of the buffer rod 22 close to the mounting frame 21 is fixed with a guide shaft 23, the guide shaft 23 penetrates the mounting frame 21 and extends outside the mounting frame 21, a first through hole (not shown) for the sliding of the guide shaft 23 is formed on the mounting frame 21, so that the guide shaft 23 can slide in the first through hole when the submarine cable presses the buffer rod 22. A spring 24 is arranged on the guide shaft 23, one end of the spring 24 is connected with the buffer rod 22, and the other end is connected with the mounting frame 21, so that the spring 24 can play a buffering role when the submarine cable presses the buffer rod 22.

[0024] In an embodiment of the utility model, the embodiment is based on the above embodiment, the end of the buffer rod 22 close to the mounting frame 21 is fixed with a limiting rod 25, the limiting rod 25 penetrates the mounting frame 21, a second through hole (not shown) for the penetration of the limiting rod 25 is formed on the mounting frame 21, so that the limiting rod 25 can slide in the second through hole when the submarine cable presses the buffer rod 22; a pressure sensor 26 is installed on the limiting rod 25, when the submarine cable presses the buffer rod 22, the limiting rod 25 is driven to slide, thereby driving the pressure sensor 26 to move towards the mounting frame 21, when the pressure sensor 26 touches the mounting frame 21, a signal is sent, so that the staff adjusts the cable laying.

[0025] In an embodiment of the utility model, the embodiment is based on any of the above embodiments, the mounting frame 21 includes two U-shaped rods 211 opposite to each other, two connecting rods 212 are arranged between the two U-shaped rods 211, the connecting rod 212 is connected with the vertical rod of the U-shaped rod 211 through a connecting sleeve 213, the connecting sleeve 213 can facilitate the disassembly and assembly of the connecting rod 212 to meet the needs of submarine cable construction side extraction operation.

[0026] The inner wall of the connecting sleeve 213 has internal threads, the connecting rod 212 and the vertical rod of the U-shaped rod 211 are both provided with external threads matched with the internal threads, so that the connecting rod 212 can be disassembled and assembled by rotating the connecting sleeve 213.

[0027] In one embodiment of the utility model, the embodiment is based on any one of the above embodiments, the burying plough 1 is arranged on a rack 3, a sonar 5 is fixed on the top of the rack 3 through a support 4, the sonar 5 is an underwater sonar 5, the deviation of the entrance position cable and the installation frame 21 of burying plough 1 is detected through sound wave reflection, the construction ship is guided to adjust the cable, and the breakage caused by the accumulation of sea cable at the entrance of burying plough 1 is prevented.

[0028] In one embodiment of the utility model, the embodiment is based on any one of the above embodiments, the sonar 5 is provided with a sheath 6 for protecting the sonar 5.

[0029] In one embodiment of the utility model, the embodiment is based on any one of the above embodiments, the two support legs on the same side of the rack 3 are fixed on a sliding shoe 7, and the sliding shoe 7 can slide along the seabed so that the burying plough 1 will not sink into the seabed.

[0030] The pressure sensor and the underwater sonar in the utility model are prior art, and those skilled in the art can clearly understand, and detailed description is not made here.

[0031] The above only is the preferred embodiment of the utility model, and can not be understood as the limitation of the application, and any change and modification made according to the patent range of the utility model application should belong to the coverage of the utility model.

Claims

1. A protection device for the entry of a cable-laying plough, comprising a laying plough, characterised in that, The upper end entrance of the burying plough is fixed with a horn-shaped cable guide, which is longitudinally provided with a plurality of mounting frames; the inner circumferential side of the mounting frame is provided with a plurality of buffer rods, so that the submarine cable can extrude the buffer rod when swinging at the entrance of the burying plough, thereby playing a buffering role.

2. A protection device for the entrance of a cable plough according to claim 1, characterised in that, The end of the buffer rod close to the mounting frame is fixed with a guide shaft, the guide shaft penetrates the mounting frame and extends out of the mounting frame, and the guide shaft is provided with a spring.

3. A protection device for the entrance of a cable plough according to claim 1 or 2, characterised in that, The end of the buffer rod close to the mounting frame is fixed with a limiting rod, the limiting rod penetrates the mounting frame, and the limiting rod is provided with a pressure sensor.

4. A protection device for the entry of a cable plough according to claim 1 or 2, characterised in that, The mounting frame comprises two U-shaped rods opposite to each other, and two connecting rods are arranged between the two U-shaped rods, and the connecting rod is connected with the vertical rod of the U-shaped rod through a connecting sleeve.

5. A protection device for the entry of a cable plough according to claim 1 or 2, characterised in that, The burying plough is arranged on a rack, and a sonar is fixed on the top of the rack through a support.

6. A protection device for the entrance of a cable plough according to claim 5, characterised in that, The sonar has a sheath.

7. A protection device for the entrance of a cable plough according to claim 5, characterised in that, The two support legs on the same side of the rack are fixed on a sliding shoe.

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