Submarine cable trench excavation device and system

Abstract

The utility model relates to a submarine cable trench excavation device and system. The submarine cable trench excavation device comprises a base unit, a cutting unit, a driving unit, a height adjusting unit, a high-pressure spraying unit and a submarine cable guiding unit. The device has the advantages that the height of the cutting unit is adjusted by the height adjusting unit, and the cutting unit is driven by the driving unit to excavate a submarine cable groove; the high-pressure spraying unit is used for spraying high-pressure water flow to excavate submarine cable grooves, and the guiding unit is used for smoothly guiding submarine cables into the grooves and then burying the submarine cables. The cutting unit and the high-pressure spraying unit are independent in function and can be used independently or cooperatively to adapt to excavation of hard, soft and complex terrains, and the trench excavation efficiency is greatly improved; the cutting unit and the high-pressure injection unit are arranged perpendicular to the base unit, impact force attenuation caused by vertical impact is small, the trench excavation efficiency is improved, the matching performance with small burying equipment is high, the device can be suitable for various burying equipment, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine cable laying, in particular to a submarine cable trench excavation device and system. Background Art

[0002] With the growing demand for global communications and power transmission, the laying of submarine cables has become an important task in the field of marine engineering. It involves transporting submarine cables or pipelines from one end to the other and placing them in place. This process requires not only high-precision positioning, but also the excavation of suitable trenches on the seabed so that the cables can be buried safely and stably to protect the submarine cables. In existing technologies, the excavation of submarine cable trenches mainly relies on two types: submarine plow trenchers and high-pressure jet trenchers.

[0003] A submarine plow trencher uses mechanical force to cut and dig grooves in the seabed rock formations through a plow blade under the drag of a tugboat. It is suitable for harder seabed formations. A high-pressure jet trencher uses high-pressure water flow to flush the seabed to dig grooves. It is suitable for softer seabed formations. It may not be able to effectively dig trenches on hard seabeds, or it may take a long time to complete the excavation task.

[0004] The traditional submarine cable trench excavation device uses a cutting knife to excavate the submarine cable trench when the submarine cable is laid on the surface of the rock layer, and uses a high-pressure water gun to excavate the submarine cable trench when it is laid on the surface of the soft covering layer. The submarine cable excavation device only has a single mode of cutting or high-pressure water gun. If it is switched between the rock layer and the softer seabed, the excavation device needs to be replaced. If the submarine cable route has both rock and soft covering layers, the cable cannot be buried smoothly. Due to the complexity of the seabed environment and the diversity of seabed geology, the submarine cable trench excavation device with a single functional mode often has problems such as low efficiency and high cost when excavating the submarine cable trench. On the other hand, the traditional submarine cable trench excavation device is mostly set as an inclined structure, which has a large impact force when cutting, and has a high matching degree requirement for the matching burying equipment. For example, it cannot be used on small burying equipment (such as a water vehicle), and its scope of use is limited.

[0005] In the relevant technologies, the submarine cable excavation device only has a single excavation mode of cutting or high-pressure water gun, which has low efficiency, cannot adapt to the excavation of complex seabed geology, has high matching requirements for buried equipment and is limited in use. No effective solution has been proposed yet. Utility Model Content

[0006] The purpose of the utility model is to provide a submarine cable trench excavation device and system in view of the deficiencies in the prior art, so as to solve the problems existing in the related art that the submarine cable excavation device only has a single excavation mode of cutting or high-pressure water gun, has low excavation efficiency, cannot adapt to the excavation of complex seabed geology, has high matching requirements for buried equipment and is limited in use, etc.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] The first aspect of the utility model is to provide a submarine cable trench excavation device, comprising:

[0009] A base unit connected to the buried equipment;

[0010] A cutting unit, the cutting unit is vertically arranged on the base unit and is used for excavating a submarine cable trench;

[0011] A driving unit, the driving unit is arranged on the base unit and connected to the cutting unit, and is used to drive the cutting unit to rotate so as to dig a submarine cable trench;

[0012] A height adjustment unit, which is disposed on the base unit and connected to the cutting unit, and is used to drive the cutting unit to reciprocate in a vertical direction;

[0013] A high-pressure jet unit, which is vertically arranged on the base unit and arranged in parallel with the cutting unit, and is used to generate a high-pressure water flow to dig a submarine cable trench;

[0014] A submarine cable guiding unit, wherein the submarine cable guiding unit is connected to the base unit and is used for guiding the submarine cable into the groove excavated by the cutting unit and / or the high-pressure jetting unit.

[0015] In some of these embodiments, the base unit comprises:

[0016] A base element connected to the buried equipment;

[0017] A sliding element is arranged on a side of the base element and is slidably connected to the cutting unit.

[0018] In some embodiments, the cutting unit comprises:

[0019] a housing element, the housing element being slidably connected to the base unit and connected to the height adjustment unit, and being configured to reciprocate in a vertical direction under the action of the height adjustment unit;

[0020] a first rotating element, the first rotating element being rotatably disposed at a first end of the housing element;

[0021] a second rotating element, the second rotating element being rotatably disposed at a second end of the housing element;

[0022] A cutting element, the cutting element is respectively connected to the first rotating element and the second rotating element in a transmission manner, and is used to rotate under the action of the first rotating element and the second rotating element to dig a trench for a submarine cable;

[0023] A first transmission element is coaxially arranged on the first rotating element and connected to the driving unit, and is used for driving the first rotating element to rotate under the action of the driving unit.

[0024] In some embodiments, the driving unit includes:

[0025] a first driving element, the first driving element being disposed on the base unit;

[0026] A second transmission element is connected to the output end of the first driving element and is in transmission connection with the cutting unit, and is used for driving the cutting unit to rotate under the action of the driving unit.

[0027] In some of the embodiments, the height adjustment unit comprises:

[0028] a second driving element, the second driving element being disposed on the base unit;

[0029] A connecting element, wherein the connecting element is respectively connected to the output end of the second driving element and the cutting unit, and is used for driving the cutting unit to reciprocate in the vertical direction under the action of the second driving element.

[0030] In some of the embodiments, the high pressure injection unit comprises:

[0031] a water pipe element, which is disposed on the base unit and is in communication with seawater for supplying seawater;

[0032] a water tank element, the water tank element being arranged on the base unit, located at a side of the cutting unit, and being in communication with the water pipe element, and being used for storing seawater;

[0033] A plurality of nozzle elements, which are distributed at the bottom end of the water tank element and communicated with the water tank element, and are used to spray seawater from the water tank element;

[0034] The third driving element is arranged on the base unit and connected to the water tank element, and is used to drive the water tank element to form a high-pressure water flow, and spray it out through the nozzle element to form a groove for burying the submarine cable.

[0035] In some of the embodiments, the submarine cable guiding unit comprises:

[0036] A guide pipe element is arranged at the side of the high-pressure jet unit and connected to the base unit, and is used for the submarine cable to pass through so as to guide the submarine cable into the groove excavated by the cutting unit and / or the high-pressure jet unit.

[0037] In some of the embodiments, the submarine cable guiding unit further comprises:

[0038] A plurality of guide wheel elements are distributed on both sides of the guide tube element and are used to protect the submarine cable.

[0039] The second aspect of the utility model is to provide a submarine cable trench excavation system, comprising:

[0040] The submarine cable trenching device as described in the first aspect;

[0041] A mobile device, wherein the submarine cable trench excavation device is installed at the tail of the mobile device.

[0042] In some embodiments, the submarine cable trench excavation system further comprises:

[0043] A control device, wherein the control device is connected to the submarine cable trench excavation device and the moving device respectively, and is used to control the submarine cable trench excavation device and the moving device.

[0044] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0045] The utility model discloses a submarine cable trench excavation device and system, in which a cutting unit and a high-pressure jet unit are arranged perpendicularly to a base unit, and the impact force attenuation of vertical impact is small, so as to improve the trench excavation efficiency, and the vertical design has high matching performance with small burying equipment, and can be applied to a variety of burying equipment, with a wide application range, and solves the problem of limited use due to high matching requirements for burying equipment; the height of the cutting unit is adjusted by a height adjustment unit, and the cutting unit is driven by a driving unit to excavate a submarine cable trench; the high-pressure jet unit is used to spray high-pressure water flow to excavate a submarine cable trench, and the guide unit is used to smoothly guide the submarine cable It is buried after being introduced into the trench; the cutting unit and the high-pressure jet unit have independent functions and can be used separately or in combination. The trench excavation mode can be flexibly switched to adapt to the excavation of hard, soft and complex terrains, which greatly improves the trench excavation efficiency and solves the problem that the submarine cable excavation device only has a single mode of cutting or high-pressure water gun, which has low excavation efficiency and cannot adapt to the excavation of complex seabed geology; and the excavation mode of the submarine cable trench excavation device, the depth of the trench, and the moving speed and direction of the moving device are accurately controlled by the control device; precise control is achieved and remote operation can be performed, which greatly improves the efficiency of submarine cable burying. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a cross-sectional view of a submarine cable trench excavation device according to an embodiment of the utility model;

[0047] Figure 2 is a cross-sectional view of a base unit according to an embodiment of the utility model;

[0048] Figure 3 is a cross-sectional view of a cutting unit according to an embodiment of the utility model;

[0049] Figure 4 is a schematic diagram of a drive unit according to an embodiment of the utility model;

[0050] Figure 5 is a schematic diagram of a height adjustment unit according to an embodiment of the utility model;

[0051] Figure 6 is a schematic diagram of a high-pressure injection unit according to an embodiment of the utility model;

[0052] Figure 7 is a schematic diagram of a submarine cable guide unit according to an embodiment of the utility model (I);

[0053] Figure 8 is a schematic diagram of a submarine cable guide unit according to an embodiment of the utility model (II);

[0054] Fig. 9 1 is a schematic diagram of a submarine cable trench excavation system according to an embodiment of the utility model (I);

[0055] Fig.10 2 is a schematic diagram of a submarine cable trench excavation system according to an embodiment of the utility model.

[0056] The accompanying drawings are denoted as follows:

[0057] 100. Submarine cable trench excavation device;

[0058] 110. Base unit; 111. Base element; 112. Sliding element;

[0059] 120, cutting unit; 121, housing element; 122, first rotating element; 123, second rotating element; 124, cutting element; 125, first transmission element;

[0060] 130. driving unit; 131. first driving element; 132. second transmission element;

[0061] 140. Height adjustment unit; 141. Second driving element; 142. Connecting element;

[0062] 150, high pressure spray unit; 151, water pipe component; 152, water tank component; 153, spray head component; 154, third driving component;

[0063] 160. Submarine cable guide unit; 161. Guide tube element; 162. Guide wheel element;

[0064] 200. Mobile device;

[0065] 300. Control device. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0067] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0068] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0069] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or units (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0070] Example 1

[0071] This embodiment relates to a submarine cable trench excavation device of the utility model.

[0072] An illustrative embodiment of the present utility model is as follows: Figure 1 As shown, a submarine cable trench excavation device 100 includes a base unit 110, a cutting unit 120, a driving unit 130, a height adjustment unit 140, a high-pressure jet unit 150 and a submarine cable guide unit 160. The base unit 110 is connected to the burying equipment; the cutting unit 120 is vertically arranged on the base unit 110 for excavating a submarine cable trench; the driving unit 130 is arranged on the base unit 110 and connected to the cutting unit 120 for driving the cutting unit 120 to rotate to excavate the submarine cable trench; the height adjustment unit 140 is arranged on the base unit 110 and connected to the cutting unit 120 for driving the cutting unit 120 to reciprocate in the vertical direction; the high-pressure jet unit 150 is vertically arranged on the base unit 110 and arranged in parallel with the cutting unit 120 for generating a high-pressure water flow to excavate a submarine cable trench; the submarine cable guide unit 160 is connected to the base unit 110 for guiding the submarine cable into the trench excavated by the cutting unit 120 and / or the high-pressure jet unit 150.

[0073] like Figure 2As shown, the base unit 110 includes a base element 111 and a sliding element 112. The base element 111 is connected to the embedding device; the sliding element 112 is arranged on the side of the base element 111 and is slidably connected to the cutting unit 120.

[0074] The connection between the base element 111 and the embedded equipment is a detachable connection, wherein the detachable connection includes but is not limited to a screw connection.

[0075] In some embodiments, the base element 111 is made of a corrosion-resistant material, including but not limited to stainless steel.

[0076] In some of the embodiments, the base element 111 is a hollow mounting seat.

[0077] The connection between the sliding element 112 and the base element 111 is fixed connection or detachable connection. The fixed connection includes but is not limited to integral molding and welding; the detachable connection includes but is not limited to screw connection.

[0078] The size of the sliding element 112 matches the size of the base element 111. Generally, the radial size (such as outer diameter, length, width) of the sliding element 112 is smaller than the radial size (such as length, width) of the side of the base element 111; the height of the sliding element 112 is smaller than the height of the base element 111.

[0079] In some embodiments, the sliding element 112 is made of a corrosion-resistant material, including but not limited to stainless steel.

[0080] In some embodiments, the sliding element 112 is a sliding slot or a sliding block.

[0081] like Figure 3 As shown, the cutting unit 120 includes a housing element 121, a first rotating element 122, a second rotating element 123, a cutting element 124 and a first transmission element 125. The housing element 121 is slidably connected to the base unit 110 and connected to the height adjustment unit 140, and is used to reciprocate in the vertical direction under the action of the height adjustment unit 140; the first rotating element 122 is rotatably arranged at the first end of the housing element 121; the second rotating element 123 is rotatably arranged at the second end of the housing element 121; the cutting element 124 is respectively connected to the first rotating element 122 and the second rotating element 123 for rotating under the action of the first rotating element 122 and the second rotating element 123 to dig a submarine cable trench; the first transmission element 125 is coaxially arranged on the first rotating element 122, and is connected to the driving unit 130, and is used to drive the first rotating element 122 to rotate under the action of the driving unit 130.

[0082] Specifically, the housing element 121 is slidably connected to the sliding element 112 .

[0083] In some of the embodiments, the shell element 121 is made of a corrosion-resistant material, including but not limited to stainless steel.

[0084] In some of the embodiments, the housing element 121 is a hollow mounting shell.

[0085] The first rotating element 122 matches the size of the housing element 121. Generally, the radial size (such as outer diameter) of the first rotating element 122 is smaller than the radial size (such as inner diameter, length, width) of the housing element 121, and the thickness of the first rotating element 122 is smaller than the width of the housing element 121.

[0086] In some embodiments, the first rotating element 122 is made of a corrosion-resistant material, including but not limited to stainless steel.

[0087] In some embodiments, the first rotating element 122 is a first rotating wheel.

[0088] The second rotating element 123 matches the size of the first rotating element 122. Generally, the radial size (such as outer diameter) of the second rotating element 123 is equal to the radial size (such as outer diameter) of the first rotating element 122, and the thickness of the second rotating element 123 is equal to the thickness of the first rotating element 122.

[0089] In some embodiments, the second rotating element 123 is made of a corrosion-resistant material, including but not limited to stainless steel.

[0090] In some embodiments, the second rotating element 123 is a second rotating wheel.

[0091] The size of the cutting element 124 matches the size of the first rotating element 122 / the second rotating element 123. Generally, the length of the cutting element 124 is greater than the circumference of the first rotating element 122 / the second rotating element 123, and the width of the cutting element 124 is not greater than the thickness of the first rotating element 122 / the second rotating element 123.

[0092] In some embodiments, the cutting element 124 is made of metal, including but not limited to high manganese wear-resistant steel.

[0093] In some of these embodiments, the cutting element 124 is a cutting strip.

[0094] The first transmission element 125 is connected to the first rotating element 122 in a detachable manner, wherein the detachable connection manner includes but is not limited to a snap connection.

[0095] The size of the first transmission element 125 matches the size of the first rotating element 122. Generally, the radial size (such as the outer diameter) of the first transmission element 125 is smaller than the radial size (such as the outer diameter) of the first rotating element 122, and the length of the first rotating element 122 is greater than the length of the first rotating element 122.

[0096] In some embodiments, the first transmission element 125 is made of metal, including but not limited to carbon steel, alloy steel and cast steel.

[0097] In some embodiments, the first transmission element 125 is a first transmission shaft or a first transmission gear.

[0098] like Figure 4 As shown, the driving unit 130 includes a first driving element 131 and a second transmission element 132. The first driving element 131 is disposed on the base unit 110; the second transmission element 132 is connected to the output end of the first driving element 131 and is in transmission connection with the cutting unit 120, and is used to drive the cutting unit 120 to rotate under the action of the driving unit 130.

[0099] Specifically, the first driving element 131 is connected to the base element 111 ; the second transmission element 132 is transmission-connected to the first transmission element 125 , and is used to drive the first rotating element 122 to rotate.

[0100] The first driving element 131 is connected to the base element 111 in a detachable manner, wherein the detachable connection manner includes but is not limited to screw connection.

[0101] The size of the first driving element 131 matches the size of the base element 111. Generally, the radial size (such as outer diameter, length, width) of the first driving element 131 is smaller than the radial size (such as inner diameter, length, width) of the base element 111, and the height of the first driving element 131 is smaller than the width of the base element 111.

[0102] In some embodiments, the first driving element 131 is a driving motor.

[0103] The second transmission element 132 is connected to the first transmission element 125 by meshing.

[0104] The second transmission element 132 is connected to the first transmission element 125 in a detachable manner, wherein the detachable connection manner includes but is not limited to a coupling connection.

[0105] The size of the second transmission element 132 matches the size of the first driving element 131. Generally, the radial size (eg, outer diameter) of the second transmission element 132 is smaller than the radial size (eg, outer diameter) of the first driving element 131.

[0106] The size of the second transmission element 132 matches the size of the first transmission element 125. Generally, the outer diameter of the second transmission element 132 may be greater than the outer diameter of the first transmission element 125, may be equal to the outer diameter of the first transmission element 125, or may be smaller than the outer diameter of the first transmission element 125.

[0107] In some embodiments, the second transmission element 132 is made of metal, including but not limited to carbon steel, alloy steel and cast steel.

[0108] In some embodiments, the second transmission element 132 is a second transmission shaft or a second transmission gear.

[0109] Generally, the first transmission element 125 and the second transmission element 132 have the following forms:

[0110] 1) The first transmission element 125 is a first transmission shaft, and the second transmission element 132 is a second transmission shaft;

[0111] 2) The first transmission element 125 is a first transmission gear, and the second transmission element 132 is a second transmission gear.

[0112] like Figure 5 As shown, the height adjustment unit 140 includes a second driving element 141 and a connecting element 142. The second driving element 141 is disposed on the base unit 110; the connecting element 142 is respectively connected to the output end of the second driving element 141 and the cutting unit 120, and is used to drive the cutting unit 120 to reciprocate in the vertical direction under the action of the second driving element 141.

[0113] Specifically, the second driving element 141 is disposed on the base element 111 ; and the connecting element 142 is connected to the housing element 121 .

[0114] The first driving element 131 is connected to the base element 111 in a detachable manner, wherein the detachable connection manner includes but is not limited to screw connection.

[0115] The size of the second driving element 141 matches the size of the base element 111. Generally, the radial size (such as outer diameter, length, width) of the second driving element 141 is smaller than the radial size (such as inner diameter, length, width) of the base element 111, and the height of the second driving element 141 is smaller than the width of the base element 111.

[0116] In some of the embodiments, the second driving element 141 is a lifting cylinder.

[0117] The connection between the connection element 142 and the housing element 121 is a detachable connection, wherein the detachable connection includes but is not limited to a screw connection.

[0118] The size of the connecting element 142 matches the size of the housing element 121. Generally, the radial size (such as outer diameter, length, width) of the connecting element 142 is smaller than the radial size (such as length, width) of the housing element 121.

[0119] In some embodiments, the connecting element 142 is made of metal, including but not limited to stainless steel.

[0120] In some of the embodiments, the connecting element 142 is a connecting socket.

[0121] like Figure 6 As shown, the high-pressure jet unit 150 includes a water pipe element 151, a water tank element 152, a plurality of nozzle elements 153 and a third driving element 154. The water pipe element 151 is arranged on the base unit 110 and is connected to the seawater for supplying seawater; the water tank element 152 is arranged on the base unit 110, located at the side of the cutting unit 120, and is connected to the water pipe element 151 for storing seawater; a plurality of nozzle elements 153 are distributed and arranged at the bottom end of the water tank element 152, and are connected to the water tank element 152, and are used to spray the seawater of the water tank element 152; the third driving element 154 is arranged on the base unit 110, and is connected to the water tank element 152, and is used to drive the water tank element 152 to form a high-pressure water flow inside, and spray it out through the nozzle element 153 to form a groove for burying the submarine cable.

[0122] Specifically, the water pipe element 151 is disposed through the base element 111 ; the water tank element 152 is disposed at the bottom end of the base element 111 and is located at the side of the cutting element 124 ; and the third driving element 154 is disposed inside the base element 111 .

[0123] The connection between the water pipe element 151 and the base element 111 is a detachable connection, wherein the detachable connection includes but is not limited to a snap connection and a screw connection.

[0124] The size of the water pipe element 151 matches the size of the base element 111. Generally, the radial size (such as the outer diameter) of the water pipe element 151 is smaller than the radial size (such as the outer diameter, length, width) of the cross section of the base element 111 where the water pipe element 151 is located.

[0125] In some embodiments, the water pipe element 151 is made of metal, including but not limited to stainless steel.

[0126] In some of the embodiments, the water pipe element 151 is a water supply pipe.

[0127] The connection between the water tank element 152 and the water pipe element 151 is fixed connection or detachable connection. The fixed connection includes but is not limited to integral molding and welding; the detachable connection includes but is not limited to screw connection and flange connection.

[0128] The connection between the water tank element 152 and the base element 111 is a detachable connection, wherein the detachable connection includes but is not limited to a screw connection.

[0129] The size of the water tank element 152 matches the size of the water pipe element 151. Generally, the radial size (such as outer diameter, length, width) of the water tank element 152 is not less than the radial size (such as outer diameter, length, width) of the water pipe element 151.

[0130] The size of the water tank element 152 matches the size of the base element 111. Generally, the radial size (such as outer diameter, length, width) of the cross section of the water tank element 152 is smaller than the radial size (such as outer diameter, length, width) of the cross section of the water tank element 152 in which it is located.

[0131] In some embodiments, the water tank element 152 is made of metal, including but not limited to stainless steel.

[0132] In some of the embodiments, the water tank element 152 is a water tank.

[0133] A plurality of spray head elements 153 are arranged in an array and distributed at the bottom end of the water tank element 152 .

[0134] The connection between the nozzle element 153 and the water tank element 152 is a detachable connection, wherein the detachable connection includes but is not limited to a snap connection and a threaded connection.

[0135] The size of the spray head element 153 matches the size of the water tank element 152. Generally, the radial size (such as the outer diameter) of the spray head element 153 is smaller than the radial size (such as the outer diameter, length, width) of the bottom end of the water tank element 152.

[0136] In some of the embodiments, the nozzle element 153 is a nozzle, including but not limited to a high-pressure water cutting nozzle.

[0137] The third driving element 154 is connected to the base element 111 in a detachable connection, wherein the detachable connection includes but is not limited to a screw connection.

[0138] The size of the third driving element 154 matches the size of the base element 111. Generally, the length of the third driving element 154 is smaller than the length of the base element 111, the width of the third driving element 154 is smaller than the width of the base element 111, and the height of the third driving element 154 is smaller than the height of the base element 111.

[0139] In some of the embodiments, the third driving element 154 is a water pump.

[0140] like Figure 7As shown, the submarine cable guiding unit 160 includes a guiding pipe element 161. The guiding pipe element 161 is arranged on the side of the high-pressure jet unit 150 and connected to the base unit 110 for the submarine cable to pass through so as to guide the submarine cable into the groove excavated by the cutting unit 120 and / or the high-pressure jet unit 150.

[0141] Specifically, the guide pipe element 161 is disposed on the side of the water tank element 152 and connected to the base element 111 for the submarine cable to pass through.

[0142] Generally, the horizontal position of the bottom end of the guide pipe member 161 is not lower than the horizontal position of the bottom end of the water tank member 152 .

[0143] The guide tube element 161 and the base element 111 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to screw connection.

[0144] The guide pipe and the water tank element 152 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to welding; the detachable connection includes but is not limited to screw connection.

[0145] The size of the guide tube element 161 matches the size of the base element 111. Generally, the radial size (such as the outer diameter) of the guide tube element 161 is smaller than the radial size (such as the length and width) of the cross section of the base element 111 where the guide tube element 161 is located, and the length of the guide tube element 161 is greater than the height of the base element 111.

[0146] In some embodiments, the guide tube element 161 is made of metal, including but not limited to stainless steel.

[0147] In some embodiments, the guide tube element 161 is a submarine cable guide tube.

[0148] The use of the utility model:

[0149] (1) Excavation of submarine cable trenches in hard seabed strata

[0150] The second driving element 141 adjusts the height of the cutting element 124, and the housing element 121 and the sliding element 112 slide so that the cutting element 124 is located at the cutting position;

[0151] The first driving element 131 drives the second transmission element 132 to drive the first transmission element 125 to rotate, the first transmission element 125 drives the first rotating element 122 to rotate, and the second rotating element 123 cooperates with the first rotating element 122 to drive the cutting element 124 to rotate, thereby excavating the seabed to form a groove;

[0152] The submarine cable is slid into the groove through the guide tube element 161 and buried.

[0153] (2) Excavation of submarine cable trenches in soft seabed strata

[0154] The second driving element 141 adjusts the height of the cutting element 124, and the housing element 121 slides with the sliding element 112 to make the cutting element 124 move upward, and the cutting element 124 does not cut the seabed formation;

[0155] The third driving element 154 drives seawater into the water tank element 152 through the water inlet pipe element 151 to form a high-pressure water flow that is ejected through a plurality of nozzle elements 153 to dig a submarine cable trench in the soft seabed stratum;

[0156] The submarine cable is slid into the groove through the guide tube element 161 and buried.

[0157] (3) Excavation of submarine cable trenches in complex terrain with both soft and hard surfaces

[0158] According to the methods of steps (1) and (2), the cutting mode and the high-pressure water jet mode of the cutting element 124 are simultaneously turned on to excavate the complex seabed strata to form a groove. The submarine cable slides into the groove through the guide tube element 161 and is buried.

[0159] The technical effects of the utility model are as follows:

[0160] The cutting unit and the high-pressure jet unit are arranged perpendicular to the base unit, and the impact force of the vertical impact is attenuated small to improve the efficiency of trench excavation. The vertical design is highly compatible with small burying equipment and can be applied to a variety of burying equipment. It has a wide range of applications and solves the problem of limited use due to high requirements for the matching degree of the burying equipment. The height of the cutting unit is adjusted by the height adjustment unit, and the cutting unit is driven by the driving unit to excavate the submarine cable trench. The high-pressure jet unit is used to spray high-pressure water to excavate the submarine cable trench, and the guide unit is used to smoothly guide the submarine cable into the trench and bury it. The cutting unit and the high-pressure jet unit have independent functions and can be used alone or in combination. The trench excavation mode can be flexibly switched to adapt to the excavation of hard, soft and complex terrains, which greatly improves the efficiency of trench excavation and solves the problem that the submarine cable excavation device only has a single mode of cutting or high-pressure water gun, which has low excavation efficiency and cannot adapt to the excavation of complex seabed geology.

[0161] Example 2

[0162] This embodiment is a variation of Embodiment 1.

[0163] like Figure 8 As shown, the submarine cable guiding unit 160 further includes a plurality of guiding wheel elements 162. The plurality of guiding wheel elements 162 are distributed on the guiding tube element 161 to protect the submarine cable.

[0164] Specifically, the guide wheel element 162 is connected to the base element 111 .

[0165] The guide wheel element 162 is connected to the base element 111 in a detachable manner, wherein the detachable connection includes but is not limited to screw connection.

[0166] A plurality of guide wheel elements 162 are disposed around the guide tube element 161 .

[0167] The size of the guide wheel element 162 matches the size of the base element 111. Generally, the radial size (such as the outer diameter) of the guide wheel element 162 is smaller than the radial size (such as the length and width) of the base element 111 where the guide wheel element 162 is located.

[0168] The size of the guide wheel element 162 matches the size of the guide tube element 161. Generally, the radial size (such as the outer diameter) of the guide wheel element 162 is smaller than the radial size (such as the outer diameter) of the guide tube element 161.

[0169] In some embodiments, the guide wheel element 162 is made of metal, including but not limited to stainless steel.

[0170] In some of the embodiments, the guide wheel element 162 is a guide wheel.

[0171] In some embodiments, the guide wheel element 162 includes a guide wheel and a bracket. The bracket is detachably connected to the base element 111 and is located on both sides of the guide tube element 161; the guide wheel is arranged on the bracket and is rotatably connected to the bracket to ensure that the submarine cable can slide smoothly into the guide tube element 161 during the laying process.

[0172] The technical effects of this embodiment are as follows:

[0173] By providing the guide wheel element, it can be ensured that the submarine cable can be smoothly and safely guided into the guide tube element, reducing the friction and potential damage of the submarine cable during laying, and effectively protecting the submarine cable.

[0174] Example 3

[0175] This embodiment relates to a submarine cable trench excavation system of the utility model.

[0176] like Fig. 9 As shown, the submarine cable trench excavation system comprises the submarine cable trench excavation device 100 and the moving device 200 described in any one of Embodiments 1 to 2. The submarine cable trench excavation device 100 is installed at the rear of the moving device 200.

[0177] Specifically, the mobile device 200 is connected to the base unit 110 .

[0178] More specifically, the mobile device 200 is connected to the base element 111 .

[0179] The mobile device 200 is connected to the base element 111 in a detachable connection, wherein the detachable connection includes but is not limited to screw connection.

[0180] In some of the embodiments, the mobile device 200 is an embedded device, including but not limited to a water vehicle.

[0181] Furthermore, if Fig.10 As shown, the submarine cable trench excavation system further includes a control device 300. The control device 300 is connected to the submarine cable trench excavation device 100 and the moving device 200 respectively, and is used to control the submarine cable trench excavation device 100 and the moving device 200.

[0182] Specifically, the control device 300 is respectively connected to the driving unit 130, the height adjustment unit 140, the high-pressure jet unit 150, and the moving device 200, and is used to control the excavation mode of the submarine cable trench, the depth of the trench excavation, and the moving speed and moving direction of the moving device 200.

[0183] More specifically, the control device 300 is connected to the first driving element 131 , the second driving element 141 , the third driving element 154 and the moving device 200 , respectively.

[0184] In some of the embodiments, the control device 300 includes but is not limited to a controller, a smart remote control, a smart tablet, etc.

[0185] In some embodiments, the control device 300 includes a control component, a communication component and a power supply component. The control component is connected to the first driving element 131, the second driving element 141, the third driving element 154 and the mobile device 200 respectively; the communication component is connected to the control component for information transmission; and the power supply component is connected to the control component for power supply.

[0186] In some of the embodiments, the control component includes but is not limited to a single chip microcomputer, a chip, and a processor.

[0187] In some of the embodiments, the communication component includes a Bluetooth module, a WiFi module, a 4G module, and a 5G module.

[0188] In some embodiments, the power supply assembly is of detachable design or non-detachable design. When it is detachable, the power supply assembly can be replaced, and when it is non-detachable, the power supply assembly can be charged.

[0189] In some of these embodiments, the power source component includes, but is not limited to, a lithium battery.

[0190] The technical effects of this embodiment are as follows:

[0191] By setting up a mobile device, the submarine cable trench excavation device can be stably installed on the mobile device, and in conjunction with the submarine cable trench excavation device, the submarine cable trench can be effectively excavated and the submarine cable can be buried; by setting up a control device, the depth of submarine cable trench excavation can be accurately controlled, the excavation mode can be flexibly switched according to the seabed geological conditions, and the excavation speed and the moving direction of the mobile device can be controlled. Not only is the control accurate, but it can also be remotely operated, which greatly improves the efficiency of submarine cable burying.

[0192] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A submarine cable trench excavation device, characterized in that: include: A base unit connected to the buried equipment; A cutting unit, the cutting unit is vertically arranged on the base unit and is used for excavating a submarine cable trench; A driving unit, the driving unit is arranged on the base unit and connected to the cutting unit, and is used to drive the cutting unit to rotate so as to dig a submarine cable trench; A height adjustment unit, which is disposed on the base unit and connected to the cutting unit, and is used to drive the cutting unit to reciprocate in a vertical direction; A high-pressure jet unit, which is vertically arranged on the base unit and arranged in parallel with the cutting unit, and is used to generate a high-pressure water flow to dig a submarine cable trench; A submarine cable guiding unit, wherein the submarine cable guiding unit is connected to the base unit and is used for guiding the submarine cable into the groove excavated by the cutting unit and / or the high-pressure jetting unit.

2. The submarine cable trench excavation device according to claim 1, characterized in that: The base unit comprises: A base element connected to the buried equipment; A sliding element is arranged on a side of the base element and is slidably connected to the cutting unit.

3. The submarine cable trench excavation device according to claim 1, characterized in that: The cutting unit comprises: a housing element, the housing element being slidably connected to the base unit and connected to the height adjustment unit, and being configured to reciprocate in a vertical direction under the action of the height adjustment unit; a first rotating element, the first rotating element being rotatably disposed at a first end of the housing element; a second rotating element, the second rotating element being rotatably disposed at a second end of the housing element; A cutting element, the cutting element is respectively connected to the first rotating element and the second rotating element in a transmission manner, and is used to rotate under the action of the first rotating element and the second rotating element to dig a trench for a submarine cable; A first transmission element is coaxially disposed on the first rotating element and connected to the driving unit, and is used for driving the first rotating element to rotate under the action of the driving unit.

4. The submarine cable trench excavation device according to claim 1, characterized in that: The driving unit comprises: a first driving element, the first driving element being disposed on the base unit; A second transmission element is connected to the output end of the first driving element and is in transmission connection with the cutting unit, and is used for driving the cutting unit to rotate under the action of the driving unit.

5. The submarine cable trench excavation device according to claim 1, characterized in that: The height adjustment unit comprises: a second driving element, the second driving element being disposed on the base unit; A connecting element, wherein the connecting element is respectively connected to the output end of the second driving element and the cutting unit, and is used for driving the cutting unit to reciprocate in a vertical direction under the action of the second driving element.

6. The submarine cable trench excavation device according to claim 1, characterized in that: The high pressure injection unit comprises: a water pipe element, which is disposed on the base unit and is in communication with seawater for supplying seawater; a water tank element, the water tank element being arranged on the base unit, located at a side of the cutting unit, and being in communication with the water pipe element, and being used for storing seawater; A plurality of nozzle elements, which are distributed at the bottom end of the water tank element and communicated with the water tank element, and are used to spray seawater from the water tank element; The third driving element is arranged on the base unit and connected to the water tank element, and is used to drive the water tank element to form a high-pressure water flow inside, and spray it out through the nozzle element to form a groove for burying the submarine cable.

7. The submarine cable trench excavation device according to claim 1, characterized in that: The submarine cable guiding unit comprises: A guide pipe element is arranged at the side of the high-pressure jet unit and connected to the base unit, and is used for the submarine cable to pass through so as to guide the submarine cable into the groove excavated by the cutting unit and / or the high-pressure jet unit.

8. The submarine cable trench excavation device according to claim 7, characterized in that: The submarine cable guiding unit also includes: A plurality of guide wheel elements are distributed on the guide tube element and are used to protect the submarine cable.

9. A submarine cable trench excavation system, characterized in that: include: The submarine cable trenching device according to any one of claims 1 to 8; A mobile device, wherein the submarine cable trench excavation device is installed at the tail of the mobile device.

10. The submarine cable trenching system according to claim 9, characterized in that: Also includes: A control device, wherein the control device is connected to the submarine cable trench excavation device and the moving device respectively, and is used to control the submarine cable trench excavation device and the moving device.

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