Modular splicable marine debris drag

Abstract

The utility model provides a modularization can splice formula marine clearing away obstacle tow harrow ware, including base, is set up with T shape groove along the width direction of river course in base, main beam is equipped with T type convex edge with T shape groove adaptation on it, T type convex edge is configured as can slide into T shape groove along the width direction of river course, and docking mechanism, docking mechanism includes a wedge, the wedge is configured as: after T type convex edge slides into T shape groove, is pushed into the space between T shape groove and T type convex edge from the direction of river course width parallel, to produce a lateral locking force, to rigidly connect main beam and base, functional head module, and main beam is connected, the utility model discloses through the docking mechanism of standardization, can replace the functional head module of a plurality of such as snatch net, cable break, tear cloth fast, carries out processing to different underwater obstacles, and the effect is more thorough to clearing away obstacle operation more pertinence.

Description

Technical Field

[0001] This utility model relates to the field of underwater obstacle clearing devices, and in particular to a modular, connectable marine obstacle clearing tow tractor. Background Technology

[0002] Before dredging operations begin, the work area should be thoroughly surveyed to fully understand the types, sizes, and distribution of underwater obstacles. If there are many obstacles, targeted clearing operations are necessary to reduce the risk of underwater obstacles clogging the cutter head and suction inlet during construction, ensuring the smooth progress of subsequent work.

[0003] Underwater obstacles are diverse, including flexible sheet-like objects such as fishing nets and geotextiles, tough linear objects such as steel wire ropes and cables, and hard block-like objects such as rocks and concrete blocks. Traditional rake teeth are not effective at clearing certain types of obstacles; for example, they are difficult to effectively hook and collect large areas of geotextiles, and they are also difficult to cut high-strength abandoned steel cables, resulting in incomplete clearance. Due to the mismatch between tools and the obstacles to be cleared, the same work area often needs to be repeatedly dragged, increasing construction time, fuel consumption, and labor costs. Utility Model Content

[0004] This utility model aims to solve the problems of existing rakes having limited functionality, fixed structure, and poor obstacle clearing effect.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A modular, connectable marine obstacle clearing tow truck includes a base with a T-shaped groove extending along the width of the river channel; a main beam with a T-shaped protrusion that fits into the T-shaped groove, the T-shaped protrusion being configured to slide into the T-shaped groove along the width of the river channel; and a docking mechanism including a wedge configured to be pushed into the space between the T-shaped groove and the T-shaped protrusion from a direction parallel to the width of the river channel after the T-shaped protrusion slides into the T-shaped groove, thereby generating a lateral locking force to rigidly connect the main beam to the base; and a functional head module connected to the main beam.

[0006] Furthermore, at least one end of the T-groove is provided with a wedge-shaped opening, which is used to guide the T-shaped protrusion to slide in and to provide space for the wedge to enter.

[0007] Furthermore, the docking mechanism also includes a hydraulic cylinder for driving the wedge.

[0008] Furthermore, the hydraulic cylinder is a self-locking hydraulic cylinder.

[0009] Furthermore, the base is composed of at least two detachably connected base units spliced ​​together.

[0010] Furthermore, the base is connected to the hull via a cable system.

[0011] Furthermore, the functional head module is a net-grabbing module, which includes a plowshare and multiple net-grabbing hooks densely arranged on the plowshare, with the openings of the net-grabbing hooks facing the hull.

[0012] Furthermore, the functional head module is a cloth shredder module, which includes at least one heavy-duty disc that can rotate freely about its axis, and the edge of the heavy-duty disc is provided with a roller cutter.

[0013] Furthermore, the functional head module is a cable breaking module, which includes a high-strength V-shaped or chisel-shaped tooth body with a replaceable cutter head at the tip of the tooth body.

[0014] Compared with the prior art, the beneficial effects of this utility model include: 1. This utility model, through a standardized docking mechanism, allows for the quick replacement of various functional head modules such as net grabbing, cable breaking, and cloth tearing, enabling the handling of different underwater obstacles, making obstacle clearing operations more targeted and effective.

[0015] 2. The replacement of modules can be completed quickly on the deck, which greatly reduces the downtime wasted due to equipment replacement and improves the effective working time and overall construction efficiency. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a structural diagram of the net-catching module.

[0017] Figure 2 for Figure 1 Enlarged view of section A.

[0018] Figure 3 This is a structural diagram of a broken cable head.

[0019] Figure 4 This is a diagram of the structure of tearing fabric.

[0020] Figure 5 This is a simplified structural diagram of a rake.

[0021] Numbering on the map: 1. Base; 11. T-slot; 2. Main beam; 3. Connecting mechanism; 31. Wedge opening; 32. Wedge; 33. Hydraulic cylinder; 41. Plowhead; 411. Net grab hook; 42. Cable break head; 421. Cutting head; 43. Fabric tear head; 431. Disc; 432. Roller cutter; 5. Cable system. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] Example 1 like Figure 1 , Figure 2 and Figure 5 A modular, connectable marine obstacle clearing tow dredger, the overall structure of which includes a base 1 and a main beam 2 that can be spliced ​​together, and at least one docking mechanism 3 installed thereon.

[0024] The base 1 is the supporting platform for the entire dragline, which is formed by overlapping one or more base units 1a adapted to the width of the river channel through fasteners or welding along the width direction of the river channel. Each base unit 1a is equipped with a docking mechanism 3 to improve overall stability.

[0025] The base 1 and the main beam 2 are connected by a docking mechanism 3 (wedge locking structure). Specifically, a T-shaped groove 11 is formed on the base 1, and the T-shaped protrusion on the main beam 2 is inserted into the T-shaped groove 11 to complete the initial docking. At both ends of the T-shaped groove 11, wedge-shaped openings 31, shaped like trumpets, are formed. These openings serve two purposes: firstly, they guide the T-shaped protrusion into the groove; secondly, they cooperate with wedges 32. Under a thrust, the wedges 32 are inserted into the space between the wedge openings 31 and the T-shaped protrusion. As the wedges 32 continue to advance, the space between them is gradually squeezed and occupied. The upper and lower surfaces of the wedges 32 apply a certain amount of positive pressure and friction to the base 1 and the main beam 2, respectively, improving the stability of the main beam 2 within the base 1. A mounting surface for the hydraulic cylinder 33 is provided on the base 1, facilitating the installation of the cylinder seat of the hydraulic cylinder 33. The piston rod of the hydraulic cylinder 33 is connected via a flange head and a wedge 32. Preferably, the hydraulic cylinder 33 has a power-off self-locking structure. The self-locking hydraulic cylinder 33 integrates a one-way valve. When hydraulic oil is injected into the cylinder, the one-way valve opens, allowing oil to enter the cylinder, thereby extending or retracting the piston rod. Once the hydraulic oil pressure disappears, the one-way valve automatically closes and locks the piston rod, keeping the load stationary. This self-locking mechanism ensures that the load will not drop unexpectedly even in the event of a power outage.

[0026] The installation direction of the wedge locking mechanism is perpendicular to the moving direction of the rake. The lateral force generated by the wedge 32 will press one side of the T-shaped protrusion against the inner wall of the T-shaped guide groove. Due to the large contact area and the force coming from the side, this will generate huge static friction, completely eliminating gaps in all directions and making the base 1 and the main beam 2 form a rigid whole.

[0027] The base 1 and the hull are connected by a cable system 5 containing several cables, allowing the base 1 to be towed along the riverbed to clear obstacles.

[0028] Example 2 Based on Example 1, this example provides three functional head modules suitable for different cleaning and decontamination conditions.

[0029] like Figure 1 Module 1 (for flexible nets): This module is used to clear flexible nets such as fishing nets. Its main body is a plowshare 41 with a sharp leading edge, connected to the main beam 2. It can easily cut into the bottom mud during towing, turning over flat obstacles. Its key structure lies in the dense array of multiple rows of net-catching hooks 42 with openings facing the hull on the sides and rear of the plowshare 41. When the fishing net is turned over and comes into contact with these hooks 42, it will be firmly hooked, torn, and continuously rolled backward, tangling into a ball, without slipping off the plowshare 41, thus achieving efficient collection.

[0030] like Figure 3 Module Two (for high-toughness cable-like objects): This module is specifically designed for handling high-toughness cable-like objects such as discarded steel cables and anchor ropes. Its main component, the cable break head 42, is a large, high-strength V-shaped or chisel-shaped tooth connected to the main beam 2. Its core feature is a replaceable carbide cutter head 421 fixed to the very front end of the tooth via bolts or wedge keys. During operation, the weight of the entire tow tractor and the towing force of the tugboat are concentrated on the narrow cutting edge of this cutter head 421, generating enormous shear or tensile stress on the steel cable, directly cutting or breaking it during towing, thus fundamentally removing the obstacle. Behind this module, on the base 1, a trawl net is fixed to collect the cut cables.

[0031] like Figure 4Module 3 (for flexible fabrics): This module is used to handle large areas of high-toughness composite fabrics or large tangled masses. Its main tearing head 43 includes one or more heavy-duty discs 431, mounted on the main beam 2 via robust bearing seats. The discs 431 can rotate freely around their axis. Crucially, the edges of the discs 431 are machined with staggered cutting edges 432. During towing, the contact friction between the multiple discs 431 and the riverbed causes them to roll passively. When rolling over a large area of ​​geotextile, the rolling cutting edges 432 act like cutting tools, continuously cutting and tearing the geotextile, creating several strip-shaped holes in the geotextile. Water can flow through these holes, reducing the water resistance on the geotextile. Behind this module, on the base 1, is Module 1. The grabbing hooks 42 on Module 1 are used to hook the strip-shaped holes and collect the geotextile.

[0032] Modules one, two, and three can be used in combination or individually depending on the operating environment. Before operation, sonar and other survey equipment are used to determine the main types and distribution areas of underwater obstacles. On the deck of the work vessel, based on the survey results, the most suitable functional head module is selected from the spare parts library, installed onto the main beam 2, and then quickly installed onto the base 1 via the docking mechanism 3. If the channel is wide, several bases 1 with pre-installed main beams 2 are spliced ​​together to achieve the required width.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A modular, connectable marine obstacle clearing tow hitch, characterized in that, include: A base, on which a T-shaped groove extending along the width of the river channel is formed; The main beam is provided with a T-shaped protrusion that is adapted to the T-shaped groove, and the T-shaped protrusion is configured to slide into the T-shaped groove along the width direction of the river channel; as well as The docking mechanism includes a wedge configured to be pushed into the space between the T-shaped groove and the T-shaped protrusion from a direction parallel to the width of the river channel after the T-shaped protrusion slides into the T-shaped groove, so as to generate a lateral locking force to rigidly connect the main beam to the base. The functional head module is connected to the main beam.

2. The modular, connectable marine obstacle clearing tow hitch as described in claim 1, characterized in that, At least one end of the T-shaped groove is provided with a wedge-shaped opening, which is used to guide the T-shaped protrusion to slide in and provide space for the wedge to enter.

3. A modular, connectable marine obstacle clearing tow hitch as described in claim 1, characterized in that, The docking mechanism also includes a hydraulic cylinder for driving the wedge.

4. A modular, connectable marine obstacle clearing tow hitch as described in claim 3, characterized in that, The hydraulic cylinder is a self-locking hydraulic cylinder.

5. A modular, connectable marine obstacle clearing tow hitch as described in claim 1, characterized in that, The base is composed of at least two detachably connected base units.

6. A modular, connectable marine obstacle clearing tow hitch as described in claim 1, characterized in that, The base is connected to the hull via a cable system.

7. A modular, connectable marine obstacle clearing tow hitch as described in claim 1, characterized in that, The functional head module is a net-grabbing module, which includes a plow and multiple net-grabbing hooks densely arranged on the plow, with the openings of the net-grabbing hooks facing the hull.

8. A modular, connectable marine obstacle clearing tow hitch as described in claim 7, characterized in that, The functional head module is a cloth shredding module, which includes at least one heavy-duty disc that can rotate freely around its axis, and the edge of the heavy-duty disc is provided with a roller cutter.

9. A modular, connectable marine obstacle clearing tow hitch as described in claim 1, characterized in that, The functional head module is a cable breaking module, which includes a high-strength V-shaped or chisel-shaped tooth body, the tip of which is provided with a replaceable cutter head.

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