Net-lifting winches and aquaculture vessels

Abstract

This invention relates to the field of net-lifting winches, and more particularly to a net-lifting winch and an aquaculture vessel. The net-lifting winch includes a frame and a mounting base. The frame is provided with hooks and mounting holes. The mounting base has locking holes extending vertically and upward-opening limiting grooves. The hooks slide vertically into the limiting grooves. The mounting holes communicate with the corresponding locking holes and are fixedly connected by fasteners. The aquaculture vessel includes the aforementioned net-lifting winch. Installers only need to lift the frame to allow the hooks to slide vertically into the limiting grooves to release the frame. This achieves pre-assembly of the frame and mounting base, eliminating the need for prolonged lifting and improving assembly / disassembly efficiency. Because the locking holes extend vertically, the matching between the locking holes and mounting holes is improved. Fasteners can be replaced directly while the frame and mounting base are connected, without needing to lift the frame, reducing the difficulty of fastener replacement.

Description

Technical Field

[0001] This invention relates to the field of net-lifting winches, and more particularly to a net-lifting winch and an aquaculture vessel. Background Technology

[0002] The aquaculture tanks on aquaculture vessels require regular fishing operations with the aid of fishing nets. Because the fishing nets are relatively large, they need to be hauled in using a net-hauling winch. To avoid the damp environment of the aquaculture tanks, the net-hauling winch is installed and used only when net hauling is needed. After the net hauling operation is completed, it is disassembled and removed from the aquaculture tanks for maintenance.

[0003] A pad with threaded holes is welded to the structural wall panel of the aquaculture tank. When the net-lifting winch needs to be installed, the winch's frame is lifted, the mounting holes of the frame are aligned with the threaded holes of the pad, and bolts are used to tighten the installation. After the net-lifting operation is completed, the winch can be removed. After repeated disassembly and assembly of the winch, the threaded holes on the pad are prone to wear, and the winch's frame is prone to slippage under the tension of the net-lifting rope, causing the winch to fall and reducing the safety of the disassembly and assembly process. At the same time, disassembly and assembly of the winch requires two installers to maintain a lifting action for a long time to keep the winch raised, and the position of the frame needs to be frequently adjusted so that other installers can align and tighten the mounting holes with the threaded holes, making the disassembly and assembly of the winch inconvenient and inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide a net-lifting winch and an aquaculture vessel to improve the safety and efficiency of the net-lifting winch assembly and disassembly process.

[0005] To achieve this objective, the technical solution adopted by the present invention is as follows:

[0006] Net hoisting winch, including:

[0007] The base frame is provided with hooks and mounting holes;

[0008] The mounting base has a locking hole extending vertically and an upward-facing limiting groove. The hook is slidably attached to the limiting groove along the vertical direction. The mounting hole communicates with the corresponding locking hole and is fixedly connected by fasteners.

[0009] As an optional solution, the limiting groove includes a vertical groove, an inclined groove and a horizontal groove. One end of the vertical groove passes through the top of the mounting base to form the opening. The other end of the vertical groove is connected to the inclined groove. The inclined groove is inclined downward along the vertical direction and is connected to the horizontal groove. The horizontal groove extends along the horizontal direction, and the vertical direction is perpendicular to the horizontal direction.

[0010] As an optional solution, the hook is adjustablely attached to the horizontal groove along the horizontal direction so that the mounting hole communicates with the corresponding locking hole.

[0011] Alternatively, the fastener includes a bolt and a nut, the bolt being threadedly connected to the nut after passing through the interconnected locking hole and the mounting hole.

[0012] As an optional solution, the mounting base includes a crossbeam and at least two longitudinal beams, the at least two longitudinal beams being spaced apart in the horizontal direction, and the crossbeam connecting adjacent longitudinal beams; each longitudinal beam has a limiting groove at its top end, and the longitudinal beam also has a locking hole.

[0013] As an optional solution, the two ends of the crossbeam along the horizontal direction are respectively connected to the positions where the locking holes are provided in the two adjacent longitudinal beams.

[0014] As an optional solution, the hook is a U-shaped hook, the inner top wall of the U-shaped hook abuts against the inner side wall of the limiting groove, and the two opposite inner side walls of the U-shaped hook have gaps between them and the side wall of the opposite longitudinal beam.

[0015] As an optional feature, the hook has a circular cross-section, and the diameter of the hook's cross-section is smaller than the width of the limiting groove.

[0016] Alternatively, the hook may be a round steel hook body that has been heat-bent.

[0017] The aquaculture vessel includes an aquaculture compartment and the aforementioned net-lifting winch, wherein the mounting base of the net-lifting winch is fixedly installed on the structural wall panel of the aquaculture compartment.

[0018] The beneficial effects of this invention are as follows:

[0019] The proposed winch for net lifting in this invention allows installers to simply lift the base frame and slide the hook vertically into the limiting groove to release the frame. This pre-assembly of the base frame and mounting base eliminates the need for prolonged lifting, facilitating easier assembly and disassembly and assembly, and improving efficiency. Simultaneously, fasteners securely fix the base frame to the mounting base, enhancing the stability and reliability of the winch installation. Because the locking holes extend vertically, even if the mounting holes shift vertically due to machining or installation errors, they still maintain connection, improving the matching between the locking holes and mounting holes. When the winch undergoes multiple assembly and disassembly cycles, fasteners can be replaced directly while the base frame and mounting base are still connected, eliminating the need to lift the base frame and reducing the difficulty of fastener replacement.

[0020] The aquaculture vessel proposed in this invention includes the aforementioned net-lifting winch, with its mounting base fixedly installed on the structural wall panel of the aquaculture hull. This pre-assembly method, where the frame and mounting base are connected, eliminates the need for installers to maintain a lifting posture for extended periods, facilitating the assembly and disassembly of the net-lifting winch and improving efficiency. Simultaneously, fasteners securely fix the frame to the mounting base, enhancing the stability and reliability of the net-lifting winch installation. The vertical extension of the locking holes improves the compatibility between the locking holes and the mounting holes. Fasteners can be replaced directly while the frame and mounting base are connected, eliminating the need to lift the frame and reducing the difficulty of fastener replacement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the net-lifting winch provided in an embodiment of the present invention;

[0022] Figure 2 This is a front view of the mounting base provided in an embodiment of the present invention;

[0023] Figure 3 This is a left view of the net-lifting winch provided in an embodiment of the present invention;

[0024] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0025] The component names and labels in the diagram are as follows:

[0026] 10. Structural wall panels;

[0027] 1. Base; 11. Hook; 12. Mounting hole;

[0028] 2. Mounting base; 21. Longitudinal beam; 211. Locking hole; 212. Limiting groove; 2121. Vertical groove; 2122. Inclined groove; 2123. Horizontal groove; 22. Crossbeam;

[0029] 3. Fasteners; 31. Bolts; 32. Nuts;

[0030] 4. Motor. Detailed Implementation

[0031] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0032] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] This embodiment proposes an aquaculture vessel, which includes an aquaculture compartment and a net-hauling winch. The net-hauling winch is detachably installed on the aquaculture compartment to assist in hauling in the fishing nets. To avoid the humid environment of the aquaculture compartment, the net-hauling winch is installed and used only when there is a need to haul in the nets. After the net-hauling operation is completed, the winch is disassembled and moved out of the aquaculture compartment for maintenance.

[0037] A pad with threaded holes is welded onto the structural wall panel of the existing aquaculture tank. When the net-lifting winch needs to be installed, the winch's frame is lifted, the mounting holes of the frame are aligned with the threaded holes on the pad, and bolts are used to tighten the installation. After the net-lifting operation is completed, the winch can be removed. After repeated disassembly and assembly, the threaded holes on the pad are prone to wear, and the winch's frame is prone to slippage under the tension of the net-lifting rope, causing the winch to fall and reducing the safety of the disassembly and assembly process. At the same time, disassembly and assembly of the net-lifting winch requires two installers to maintain a lifting action for a long time to keep the winch raised, and the position of the frame needs to be frequently adjusted so that other installers can align and tighten the mounting holes with the threaded holes, making the disassembly and assembly of the net-lifting winch inconvenient and inefficient.

[0038] To solve the above problems, such as Figure 1 and Figure 2 As shown in the figure, this embodiment also proposes a net-lifting winch, which includes a frame 1 and a mounting base 2. The mounting base 2 is fixedly installed on the structural wall panel 10 of the aquaculture tank. Specifically, the frame 1 is provided with a hook 11 and a mounting hole 12. The mounting base 2 is provided with a locking hole 211 extending vertically (up and down in the figure) and a limiting groove 212 with an upward opening. The hook 11 is slidably hooked into the limiting groove 212 in the vertical direction. The mounting hole 12 communicates with the corresponding locking hole 211 and is fixedly connected by a fastener 3. The installer only needs to lift the frame 1 and let the hook 11 slide vertically into the limiting groove 212 to release the frame 1. This realizes the pre-assembly of the frame 1 and the mounting base 2 by hooking them together, without the installer having to maintain a lifting action for a long time. This facilitates the disassembly and assembly of the net-lifting winch and improves the efficiency of disassembly and assembly. At the same time, the fastener 3 fixes the frame 1 to the mounting base 2, improving the stability and reliability of the net-lifting winch installation. Because the locking hole 211 extends vertically, even if the mounting hole 12 is offset in the vertical direction due to machining or installation errors, it can still connect with the locking hole 211, improving the matching between the locking hole 211 and the mounting hole 12. When the winch has been disassembled and reassembled multiple times, the fastener 3 can be replaced directly while the frame 1 and the mounting base 2 are still connected, without having to lift the frame 1, thus reducing the difficulty of replacing the fastener 3.

[0039] like Figure 1 As shown, the net-hauling winch also includes a motor 4, the output shaft of which is rotatably mounted on the base 1, and one end of the fishing net is wound around the output shaft of the motor 4. Since the net-hauling winch is existing technology, its specific structure and working process will not be described in detail.

[0040] Specifically, the limiting groove 212 includes a vertical groove 2121, an inclined groove 2122, and a horizontal groove 2123. One end of the vertical groove 2121 passes through the top of the mounting base 2 to form an opening, and the other end of the vertical groove 2121 communicates with the inclined groove 2122. The inclined groove 2122 slopes downward in the vertical direction and communicates with the horizontal groove 2123. The horizontal groove 2123 extends in the horizontal direction (left and right in the figure), and the vertical direction is perpendicular to the horizontal direction. When the frame 1 is lifted, the hook 11 is inserted vertically into the vertical groove 2121 from the opening. Under the gravity of the hoisting winch (while the worker continues to lift the frame 1), the hook 11 slides sequentially from the vertical groove 2121 and the inclined groove 2122 into the blind end of the horizontal groove 2123, realizing the pre-assembly of the connection between the frame 1 and the mounting base 2. At this time, the worker does not need to continue to lift the frame 1, greatly shortening the lifting time.

[0041] It should be noted that the inclined groove 2122 is inclined to the right in the vertical direction, so that the inclined groove 2122 can play a guiding transition role between the vertical groove 2121 and the horizontal groove 2123, preventing the hook 11 from sliding directly from the vertical groove 2121 into the horizontal groove 2123 and causing jamming, thus ensuring that the hook 11 slides smoothly into the horizontal groove 2123. Since the motor 4 is located on the right side of the frame 1, the center of gravity of the net-lifting winch is located on the right side of the frame 1, making it easy for the hook 11 on the left side to tilt. Therefore, the horizontal groove 2123 plays a vertical limiting role for the hook 11, ensuring that the two hooks 11 are stably installed in the corresponding horizontal grooves 2123.

[0042] like Figure 1 and Figure 2 As shown, in this embodiment, the frame 1 has two hooks 11 arranged horizontally, and the mounting base 2 has two corresponding limiting grooves 212. The frame 1 has four mounting holes 12 arranged in an array, and the limiting grooves 212 have four locking holes 211 arranged in an array. By providing two hooks 11, the stability and reliability of the connection between the frame 1 and the mounting base 2 are improved. Simultaneously, the four mounting holes 12 and the four locking holes 211 are directly opposite each other and connected by fasteners 3, improving the assembly stability of the frame 1 and the mounting base 2. In other embodiments, the number and distribution of the hooks 11, mounting holes 12, and locking holes 211 can be flexibly adjusted, and are not specifically limited here.

[0043] Furthermore, the hook 11 is horizontally adjustable and hooked into the horizontal groove 2123 so that the mounting hole 12 communicates with the corresponding locking hole 211. After the base 1 and the mounting base 2 are pre-assembled by hooking, the base 1 can move slightly to the left or right in the horizontal direction to adjust the lateral displacement of the base 1, so that the mounting hole 12 can be aligned with the corresponding locking hole 211. Even if affected by machining errors and installation errors, the mounting hole 12 can still communicate with the locking hole 211 in the horizontal direction, further improving the matching between the locking hole 211 and the mounting hole 12.

[0044] like Figure 2 As shown, the mounting base 2 includes a crossbeam 22 and at least two longitudinal beams 21. The at least two longitudinal beams 21 are spaced apart horizontally, and a crossbeam 22 connects adjacent longitudinal beams 21. Each longitudinal beam 21 has a limiting groove 212 at its top and a locking hole 211 on its top. Specifically, the crossbeam 22 is made of flat iron, and the longitudinal beams 21 are made of angle steel. Two angle steels are spaced apart horizontally, and two flat irons are spaced apart vertically. Each flat iron is welded to two angle steels at both ends, forming a closed frame structure that improves the structural strength and stability of the mounting base 2. The specific specifications of the angle steel need to be checked according to the tension load of the winch to ensure reliable assembly of the frame 1 on the mounting base 2. In other embodiments, the number of longitudinal beams 21 and crossbeams 22 can be flexibly adjusted according to assembly requirements and is not specifically limited here.

[0045] Furthermore, the two ends of the horizontal beam 22 are respectively connected to the positions where locking holes 211 are provided in the two adjacent longitudinal beams 21. Each longitudinal beam 21 has two locking holes 211 spaced apart in the vertical direction, and the ends of the horizontal beam 22 are respectively welded to the positions where locking holes 211 are provided in the longitudinal beams 21 to enhance the structural strength at the locking holes 211.

[0046] like Figure 3 As shown, the longitudinal beam 21 of the mounting base 2 is fixedly installed on the structural wall panel 10 of the aquaculture tank by welding. The fasteners 3 include bolts 31 and nuts 32. The bolt 31 passes through the interconnected locking hole 211 and mounting hole 12 and is threadedly connected to the nut 32. The threaded engagement of the bolt 31 and nut 32 not only improves the assembly strength of the frame 1 and the mounting base 2 but also enables detachable assembly of the frame 1 and the mounting base 2. When the winch is disassembled and reassembled multiple times, and the external threads on the bolt 31 or the internal threads on the nut 32 wear down, the bolts 31 and nut 32 can be directly replaced while the frame 1 and the mounting base 2 are still connected, reducing the difficulty of replacing the fasteners 3.

[0047] Specifically, such as Figure 3 and Figure 4As shown, hook 11 is a U-shaped hook. The inner top wall of the U-shaped hook abuts against the inner side wall of the limiting slide groove 212. The two opposite inner side walls of the U-shaped hook have gaps between them and the side walls of the opposite longitudinal beam 21. Specifically, the distance between one opposite inner side wall of the U-shaped hook and one side wall of the opposite longitudinal beam 21 is h, and the distance between the other opposite inner side wall of the U-shaped hook and the other side wall of the opposite longitudinal beam 21 is h. The sum of the two h's is about 5mm, so that the inner side wall of the U-shaped hook does not contact the corresponding side wall of the longitudinal beam 21, reducing the contact area between the U-shaped hook and the longitudinal beam 21 and preventing the hook 11 from getting stuck when sliding in the limiting slide groove 212.

[0048] In this embodiment, the cross-section of the hook 11 is circular, and the diameter of the cross-section of the hook 11 is smaller than the width of the limiting groove 212. By setting the cross-section of the hook 11 to be circular, the contact area between the hook 11 and the limiting groove 212 is further reduced, which helps to reduce the sliding friction between the hook 11 and the limiting groove 212, thereby enabling the hook 11 to slide smoothly within the limiting groove 212.

[0049] Specifically, the hook 11 is a round steel hook body that has been hot-bent to avoid cracks caused by cold working of the hook 11, thus ensuring the structural strength of the hook 11 and improving the load-bearing capacity of the hook 11.

[0050] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A net-lifting winch, characterized in that, include: The seat (1) is provided with hooks (11) and mounting holes (12); Mounting base (2), the mounting base (2) is provided with a locking hole (211) extending in the vertical direction and a limiting slide groove (212) with the opening facing upward. The hook (11) is slidably hooked in the limiting slide groove (212) in the vertical direction. The mounting hole (12) is connected to the corresponding locking hole (211) and fixedly connected by fastener (3). The limiting groove (212) includes a vertical groove (2121), an inclined groove (2122), and a horizontal groove (2123). One end of the vertical groove (2121) passes through the top of the mounting base (2) to form the opening. The other end of the vertical groove (2121) is connected to the inclined groove (2122). The inclined groove (2122) is inclined downward along the vertical direction and is connected to the horizontal groove (2123). The horizontal groove (2123) extends along the horizontal direction, and the vertical direction is perpendicular to the horizontal direction. The hook (11) is adjustablely attached to the horizontal groove (2123) along the horizontal direction so that the mounting hole (12) communicates with the corresponding locking hole (211).

2. The net-lifting winch according to claim 1, characterized in that, The fastener (3) includes a bolt (31) and a nut (32), the bolt (31) being threaded to the nut (32) after passing through the connecting locking hole (211) and the mounting hole (12).

3. The net-lifting winch according to claim 1, characterized in that, The mounting base (2) includes a crossbeam (22) and at least two longitudinal beams (21). The at least two longitudinal beams (21) are spaced apart in the horizontal direction, and the crossbeam (22) connects two adjacent longitudinal beams (21). Each longitudinal beam (21) has a limiting groove (212) at its top end, and the longitudinal beam (21) also has a locking hole (211).

4. The net-lifting winch according to claim 3, characterized in that, The two ends of the crossbeam (22) along the horizontal direction are respectively connected to the positions where the locking holes (211) are provided in the two adjacent longitudinal beams (21).

5. The net-lifting winch according to claim 3, characterized in that, The hook (11) is a U-shaped hook, the inner top wall of the U-shaped hook abuts against the inner side wall of the limiting groove (212), and the two opposite inner side walls of the U-shaped hook have gaps between them and the side wall of the opposite longitudinal beam (21).

6. The net-lifting winch according to claim 1, characterized in that, The hook (11) has a circular cross-section, and the diameter of the cross-section of the hook (11) is smaller than the width of the limiting groove (212).

7. The net-lifting winch according to claim 6, characterized in that, The hook (11) is a round steel hook body processed by hot bending.

8. An aquaculture vessel, characterized in that, The system includes an aquaculture cabin and a net-lifting winch as described in any one of claims 1 to 7, wherein the mounting base (2) of the net-lifting winch is fixedly installed on the structural wall panel (10) of the aquaculture cabin.

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