Underwater sand bag cutting ditcher with cutter and high-pressure nozzle

Abstract

The utility model relates to the technical field of ditchers, and discloses a cutter and high-pressure nozzle underwater sand cutting bag ditcher which comprises a ditcher body, two rotating arms installed on the two sides of the ditcher body, a water spraying pipe and a cutting wheel, the water spraying pipe and the cutting wheel are installed at the other ends of the two rotating arms, and the ends, close to the cutting wheel, of the rotating arms are fixedly connected with two supporting blocks. The interiors of the two supporting blocks are connected with inclination mechanisms, the output ends of the inclination mechanisms are connected with angle adjusting mechanisms, and the output ends of the angle adjusting mechanisms are connected with two reversing assemblies. According to the underwater sand bag cutting ditcher with the cutter and the high-pressure nozzle, the inclination mechanism, the angle adjusting mechanism, the reverse assembly and the mud pushing plate are arranged on the two rotating arms of the ditcher body, and when the ditcher body cleans a seabed sand bag, a gap cut by a cutting wheel and a water spraying pipe can be enlarged through the mud pushing plate; and therefore, the subsea pipeline can be completely exposed, and other steps can be conveniently carried out in the later period.

Description

Technical Field

[0001] This utility model relates to the field of trenching machine technology, specifically a trenching machine for underwater sandbag cutting using a cutting tool and a high-pressure nozzle. Background Technology

[0002] The underwater sandbag cutter and trencher with blades and high-pressure nozzles sounds like a piece of equipment specifically designed for underwater operations, particularly for digging and cutting on the seabed or bottom of water. This equipment combines traditional mechanical cutting (through blades) with high-pressure water jet technology (through high-pressure nozzles) to achieve more efficient digging results.

[0003] Patent CN208981390U discloses an underwater sandbag cutting and trenching machine using a cutting tool and high-pressure nozzle. It includes a multi-beam sonar monitor, a single-beam sonar monitor, a left frame, and a right frame. The left and right frames are symmetrically arranged about the central axis of the main frame. The lower ends of the front single crossbeam and the front guide foot support are inclinedly equipped with high-pressure foot supports with cutting tools. The high-pressure water inlet flange on the upper part of the front guide foot support is bolted to the input end of a high-pressure water pump unit. A power hydraulic station is connected to the outside of the axial flow pump jetting device. This underwater sandbag cutting and trenching machine uses a cutting tool and high-pressure water jet nozzle to cut the sandbag, then uses the high-pressure water jet nozzle at the lower end of the front guide foot support to cut the seabed mud and sand, then uses the powerful water flow of the axial flow pump jetting device to jet the sand, and finally uses an air-lift pipe to remove the mud and sand from the bottom of the subsea pipeline. This allows for continued trenching to achieve the required subsea pipeline burial depth.

[0004] However, the trenching machines mentioned above still have the following problems in actual use:

[0005] When the cutting tool, curved tool, and several nozzles are used to cut sandbags and mud near customs, the patented technology often only cuts a straight line due to the special nature of the tool and nozzles. In addition, the subsea pipeline is usually quite thick. This means that even if the tool cuts the sandbags or other debris above the subsea pipeline, the pipeline is still covered and buried, which is not convenient for subsequent operations. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an underwater sandbag cutting and trenching machine with a cutting tool and a high-pressure nozzle, which can push away debris piled up above the subsea pipeline after cutting sandbags or other debris.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an underwater sandbag cutting and trenching machine with a cutting tool and a high-pressure nozzle, comprising a trenching machine body, two rotating arms installed on both sides of the trenching machine body, a water spray pipe and a cutting wheel installed on the other end of the two rotating arms, two support blocks fixedly connected to the end of the rotating arm near the cutting wheel, an inclination mechanism connected inside the two support blocks, an angle adjustment mechanism connected to the output end of the inclination mechanism, two reversing components connected to the output end of the angle adjustment mechanism, and a mud pusher plate connected to the other end of each of the two reversing components.

[0008] Furthermore, the tilting mechanism includes a tilting motor and an extension plate. The outer wall of the tilting motor is fixedly connected to the side wall of one of the support blocks. The output shaft of the tilting motor passes through the extension plate and the two support blocks. The outer wall of the tilting motor and the inner walls of the two support blocks are rotatably connected. The output shaft of the tilting motor is fixedly connected to the inner wall of the extension plate. The other end of the extension plate is connected to the angle adjustment mechanism.

[0009] Furthermore, the angle adjustment mechanism includes an angle motor and two rotating rods. Both rotating rods are located on the inner wall of the extension plate away from the tilt motor. The lower ends of the two rotating rods are respectively connected to the two ends of the reversing assembly. The outer wall of the angle motor is fixedly connected to the outer wall of the extension plate away from the tilt motor. The output shaft of the angle motor is fixedly connected to the upper end of one of the rotating rods.

[0010] Furthermore, the reversing assembly includes a gear tube and two connecting blocks. The two ends of the gear tube are fixedly connected to one end of each of the two connecting blocks, and the other ends of the two connecting blocks are fixedly connected to the upper and lower sides of one end of the pusher plate, respectively. The upper surface of one of the connecting blocks is fixedly connected to the end of the rotating rod away from the angle motor. The two gear tubes in the two reversing assemblies mesh.

[0011] Furthermore, a guide plate is fixedly connected to the bottom surface of the extension plate away from the tilting motor. The cross-section of the guide plate is trapezoidal, with the narrower end of the trapezoid aligned with the cutting wheel and the wider end aligned with the two gear tubes. The thickness of the narrower end of the guide plate is not greater than the thickness of the cutting wheel, and the thickness of the wider end of the guide plate is not less than the total width of the two gear tubes.

[0012] Furthermore, mudguard boxes are fixedly connected to the upper surfaces of the two pusher plates on opposite sides.

[0013] Furthermore, the mudguard box has a mud blowing chamber inside, and several mud blowing holes are opened through the bottom surface of the mud blowing chamber. A mud discharge pipe and a water pump are fixedly connected to the upper surface of the mudguard box. The output end of the water pump is fixedly connected to the mud discharge pipe. The mud blowing holes, the mud blowing chamber, the mud discharge pipe and the water pump are internally connected.

[0014] Furthermore, the cross-section of the mud blowing chamber is triangular, and the upward-facing tip of the mud blowing chamber is matched and aligned with the mud outlet pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This type of underwater sandbag cutting and trenching machine with cutting tools and high-pressure nozzles, by setting tilting mechanisms, angle adjustment mechanisms, reversing components and mud-pushing plates on the two rotating arms of the trenching machine body, can enlarge the gaps cut by the cutting wheels and water spray pipes through the mud-pushing plates when the trenching machine body is cleaning the seabed sandbags, thereby completely exposing the seabed pipeline to facilitate other steps in the later stage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention after removing the trenching machine body;

[0019] Figure 3 This is a partial structural schematic diagram of the tilting mechanism and the mud-pushing plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure of the mud pusher and mud baffle of this utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the mudguard box of this utility model.

[0022] In the diagram: 1. Trenching machine body; 2. Rotating arm; 3. Water spray pipe; 4. Cutting wheel; 5. Tilt motor; 6. Extension plate; 7. Mud pusher plate; 8. Water pump; 9. Support block; 10. Angle motor; 11. Connecting block; 12. Mud baffle box; 13. Rotating rod; 14. Gear tube; 15. Mud guide plate; 16. Mud discharge pipe; 121. Mud blowing hole; 122. Mud blowing chamber. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1-5A cutting tool and high-pressure nozzle underwater sandbag cutting and trenching machine includes a trenching machine body 1, two rotating arms 2 installed on both sides of the trenching machine body 1, a water spray pipe 3 and a cutting wheel 4 installed on the other end of the two rotating arms 2. Further, two support blocks 9 are fixedly connected to one end of the rotating arm 2 near the cutting wheel 4. The two support blocks 9 are internally connected to an tilting mechanism. The output end of the tilting mechanism is connected to an angle adjustment mechanism. The output end of the angle adjustment mechanism is connected to two reversing components. The other end of each of the two reversing components is connected to a mud pusher 7.

[0025] like Figures 1 to 5 As shown, when using the underwater sandbag cutting and trenching machine with cutting tools and high-pressure nozzles of this utility model, you only need to move the trenching machine body 1 to a suitable position first, and then open the two rotating arms 2 through the internal controller of the trenching machine body 1. The two rotating arms 2 rotate and bring the water spray pipe 3 and the cutting wheel 4 down together. When it is lowered to a suitable position, the water spray pipe 3 and the cutting wheel 4 are activated to cut the debris accumulated on the surface of the subsea pipeline.

[0026] During the process of cutting debris, the trenching machine body 1 continues to move. As the trenching machine body 1 moves, the two pusher plates 7, which were originally located behind the cutting wheel 4, will move to the position cut by the cutting wheel 4. Under the control of the angle adjustment mechanism, the two pusher plates 7 are in an open state. As the trenching machine body 1 moves, the opening cut by the cutting wheel 4 will become larger and larger. As the opening becomes larger, the debris accumulated on the surface of the subsea pipeline will be pushed to both sides, which will facilitate other steps to be taken on the subsea pipeline later.

[0027] It should be noted that the trenching machine body 1, rotating arm 2, water spray pipe 3 and cutting wheel 4 mentioned above are all existing mature technologies, so their connection relationship, position relationship and working principle will not be described in detail here.

[0028] Please refer to the main text. Figures 1-5 The tilting mechanism includes a tilting motor 5 and an extension plate 6. The outer wall of the tilting motor 5 is fixedly connected to the side wall of one of the support blocks 9. The output shaft of the tilting motor 5 passes through the extension plate 6 and the two support blocks 9. The outer wall of the tilting motor 5 and the inner walls of the two support blocks 9 are rotatably connected. The output shaft of the tilting motor 5 is fixedly connected to the inner wall of the extension plate 6. The other end of the extension plate 6 is connected to the angle adjustment mechanism.

[0029] More specifically, because the tilt angle of the rotating arm 2 is uncertain, the two pusher plates 7 will not be parallel to the seabed, thus affecting the function of the pusher plates 7 in pushing away debris. At this time, by setting a tilting mechanism, the vertical tilt angle of the two pusher plates 7 can be changed, so that the pusher plates 7 can always remain parallel to the seabed.

[0030] In addition, when it is necessary to control the rotation of the angle adjustment mechanism and the mud pusher 7, simply turn on the tilt motor 5. The output shaft of the tilt motor 5 can rotate the extension plate 6, thereby changing the position of several components connected to the extension plate 6.

[0031] It is important to note that since the horizontal plane and the seabed are usually relatively parallel, when the rotating arm 2 rotates downwards by 45° relative to the trencher body 1, the tilting motor 5 only needs to control the extension plate 6 and the pusher plate 7 to rotate upwards by 45°. Similarly, when the rotating arm 2 rotates downwards by 60° relative to the trencher body 1, the tilting motor 5 only needs to control the extension plate 6 and the pusher plate 7 to rotate upwards by 60° to compensate for this angle difference.

[0032] Please refer to the main text. Figures 1-5 The angle adjustment mechanism includes an angle motor 10 and two rotating rods 13. The two rotating rods 13 are located on the inner wall of the extension plate 6 away from the tilt motor 5. The lower ends of the two rotating rods 13 are respectively connected to the two ends of the reversing component. The outer wall of the angle motor 10 is fixedly connected to the outer wall of the extension plate 6 away from the tilt motor 5. The output shaft of the angle motor 10 is fixedly connected to the upper end of one of the rotating rods 13.

[0033] More specifically, since different subsea pipelines have different widths, the maximum width between the two mud-pushing plates 7 can be changed according to the thickness of the subsea pipeline in the area to be treated by setting an angle adjustment mechanism, so that the debris can be completely pushed to the outside of the subsea pipeline.

[0034] In addition, when the opening angle of the pusher plate 7 is required, simply turn on the angle motor 10. After the angle motor 10 is started, the output shaft drives the rotating rod 13 connected to it to rotate. Then, the rotating rod 13 drives the connected reverse component to rotate. Subsequently, the reverse component drives another reverse component to rotate around the other rotating rod 13 as the axis, thereby changing the opening angle of the two pusher plates 7.

[0035] Please refer to the main text. Figures 1-5 The reversing assembly includes a gear tube 14 and two connecting blocks 11. The two ends of the gear tube 14 are fixedly connected to one end of the two connecting blocks 11 respectively. The other ends of the two connecting blocks 11 are fixedly connected to the upper and lower sides of one end of the pusher plate 7 respectively. The upper surface of one of the connecting blocks 11 is fixedly connected to the end of the rotating rod 13 away from the angle motor 10. The two gear tubes 14 in the two reversing assemblies mesh.

[0036] More specifically, when the rotating rod 13 rotates, the connecting block 11 connected to the rotating rod 13 rotates, and then the connecting block 11 rotates with the gear tube 14. After the gear tube 14 rotates, it can mesh with another gear tube 14 in another reverse assembly to rotate, so that the two pusher plates 7 can be controlled to rotate in opposite directions at the same time through the two gear tubes 14 to achieve the change of angle.

[0037] Please refer to the main text. Figures 1-5 A guide plate 15 is fixedly connected to the bottom surface of the extension plate 6 away from the tilting motor 5. The cross-section of the guide plate 15 is trapezoidal. The narrower end of the guide plate 15 is aligned with the cutting wheel 4, and the wider end of the guide plate 15 is aligned with the two gear tubes 14. The thickness of the narrower end of the guide plate 15 is not greater than the thickness of the cutting wheel 4, and the thickness of the wider end of the guide plate 15 is not less than the total width of the two gear tubes 14.

[0038] More specifically, by setting the guide plate 15, firstly, the guide plate 15 can first open up a part of the narrow gap that has just been cut by the cutting wheel 4, so that the gap can be pushed open to both sides by the two subsequent push plates 7; secondly, the guide plate 15 can also protect the two gear tubes 14, so as to push some harder debris to both sides and avoid these debris from affecting the meshing between the two gear tubes 14.

[0039] Please refer to the main text. Figures 1-5 Mud-blocking boxes 12 are fixedly connected to the upper surfaces of the two mud-pushing plates 7 on opposite sides.

[0040] More specifically, as the pusher plate 7 moves, some debris cannot completely slide off the side of the pusher plate 7, but instead protrudes from the top of the pusher plate 7. At this time, by setting the mud-blocking box 12, the debris accumulated on the top of the pusher plate 7 can be blocked, preventing this part of the debris from falling from the top of the pusher plate 7 into the already opened space.

[0041] Please refer to the main text. Figures 1-5 The mud-blowering box 12 has a mud-blowing chamber 122 inside, and several mud-blowing holes 121 are opened through the bottom surface of the mud-blowing chamber 122. A mud discharge pipe 16 and a water pump 8 are fixedly connected to the upper surface of the mud-blowering box 12. The output end of the water pump 8 is fixedly connected to the mud discharge pipe 16. The mud-blowing holes 121, the mud-blowing chamber 122, the mud discharge pipe 16 and the water pump 8 are internally connected. The cross-section of the mud-blowing chamber 122 is triangular, and the upward-pointing tip of the triangle of the mud-blowing chamber 122 is matched and aligned with the mud discharge pipe 16.

[0042] More specifically, by setting up the mud blowing hole 121, the mud blowing chamber 122, the water pump 8 and the mud discharge pipe 16, the water pump 8 can draw seawater from the seawater and then spray the seawater out through the mud discharge pipe 16, the mud blowing chamber 122 and the mud blowing hole 121, thereby spraying away the debris that has accumulated near the mud pusher plate 7 and preventing it from continuously accumulating on the surface of the mud pusher plate 7.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutter and high-pressure nozzle underwater sandbag cutting ditcher, comprising a ditcher body (1), two rotating arms (2) mounted on both sides of the ditcher body (1), a water jet pipe (3) and a cutting wheel (4) mounted on the other end of the two rotating arms (2), characterized in that: The rotating arm (2) is fixedly connected with two support blocks (9) near one end of the cutting wheel (4), the inside of the two support blocks (9) is connected with an inclination mechanism, the output end of the inclination mechanism is connected with an angle adjusting mechanism, the output end of the angle adjusting mechanism is connected with two reverse components, the other end of the two reverse components is connected with a mud pushing plate (7); the inclination mechanism comprises an inclination motor (5) and an extension plate (6), the outer wall of the inclination motor (5) is fixedly connected with the side wall of one of the support blocks (9), the output shaft of the inclination motor (5) penetrates through the extension plate (6) and the two support blocks (9), the outer wall of the inclination motor (5) and the inner wall of the two support blocks (9) are rotationally connected, the output shaft of the inclination motor (5) is fixedly connected with the inner wall of the extension plate (6), the other end of the extension plate (6) is connected with the angle adjusting mechanism; the angle adjusting mechanism comprises an angle motor (10) and two rotating rods (13), the two rotating rods (13) are located on the inner wall of the extension plate (6) away from the inclination motor (5), the lower ends of the two rotating rods (13) are respectively connected with the two ends of the reverse component, the outer wall of the angle motor (10) is fixedly connected with the outer wall of the extension plate (6) away from the inclination motor (5), the output shaft of the angle motor (10) is fixedly connected with the upper end of one of the rotating rods (13); the reverse component comprises a gear tube (14) and two connecting blocks (11), the two ends of the gear tube (14) are respectively fixedly connected with one end of the two connecting blocks (11), the other ends of the two connecting blocks (11) are respectively fixedly connected with the upper and lower sides of one end of the mud pushing plate (7), the upper surface of one of the connecting blocks (11) is fixedly connected with the end of the rotating rod (13) away from the angle motor (10), the two gear tubes (14) in the two reverse components are engaged.

2. The underwater trencher of claim 1, wherein: The bottom surface of the extension plate (6) away from the inclination motor (5) is fixedly connected with a mud guide plate (15), the cross section of the mud guide plate (15) is trapezoidal, wherein the narrower end of the trapezoidal mud guide plate (15) is aligned with the cutting wheel (4), the wider end of the trapezoidal mud guide plate (15) is aligned with the two gear tubes (14), and the thickness of the narrower end of the trapezoidal mud guide plate (15) is not greater than the thickness of the cutting wheel (4), the thickness of the wider end of the trapezoidal mud guide plate (15) is not less than the total width of the two gear tubes (14).

3. The underwater trencher of claim 1, wherein: The upper surfaces of the two mud pushing plates (7) away from each other are fixedly connected with a mud blocking box (12).

4. The cutter and high pressure nozzle underwater sandbag cutting trencher of claim 3, wherein: The inside of the mud blocking box (12) is provided with a mud blowing cavity (122), a plurality of mud blowing holes (121) are penetratingly formed in the bottom surface of the mud blowing cavity (122), the upper surface of the mud blocking box (12) is fixedly connected with a mud outlet pipe (16) and a water suction pump (8), the output end of the water suction pump (8) is fixedly connected with the mud outlet pipe (16), the mud blowing holes (121), the mud blowing cavity (122), the mud outlet pipe (16) and the water suction pump (8) are in communication.

5. The underwater trencher of claim 4, wherein: The cross section of the blowing mud cavity (122) is triangular, and the triangular upward pointed tip of the blowing mud cavity (122) is matched and aligned with the mud outlet pipe (16).

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