An adjustable cover device for fish suction and fish filleting

Abstract

This utility model relates to the field of aquaculture equipment technology, specifically to an adjustable cover plate device and a fish raft for fish suction and harvesting operations. An adjustable cover plate device for fish suction includes an annular grid with inner and outer ring supports. Multiple radially distributed support rods are arranged between the inner and outer ring supports along the circumference, dividing the grid into multiple fan-shaped grooves. Multiple detachable cover plates are provided at the top of the fan-shaped grooves. A fish raft includes an annular suction chamber, an inner cover, an outer cover, and an annular inclined plate. Inner and outer support parts are provided on the outer side of the inner cover and the inner side of the outer cover, respectively. An adjustable cover plate device for fish suction is provided on the inner and outer support parts. A harvesting outlet is provided on one side of the annular suction chamber. The annular inclined plate is inclined downwards from the side opposite the harvesting outlet of the annular suction chamber to the side of the harvesting outlet. This utility model allows for simple mechanical operation to disassemble the grid cover plate, controlling the passage area for fish, reducing surface damage to fish, increasing the fish harvesting rate, and reducing the difficulty of operation for workers.

Description

Technical Field

[0001] This utility model belongs to the technical field of aquaculture equipment, specifically, it relates to fish rafts applied to the bottom of aquaculture vessels, and more specifically, it relates to an adjustable cover device for suction fish and a fish raft. Background Technology

[0002] Currently, with the continuous increase in the consumption level of aquatic products, people's requirements for the quality of aquatic products they obtain are constantly improving. Although the traditional fish raft structure has the advantage of high fishing efficiency in specific scenarios, it still has many obvious defects in the actual application of fish rafts.

[0003] Traditional fish rafts have fixed-section fishing channels, which have significant drawbacks in actual operation: Firstly, because the passage area for fish is fixed during the fishing process, the suction chamber often contains juvenile fish that do not meet the standards, resulting in poor selectivity; secondly, when using fish rafts for high-density fishing operations, the fixed passage area for fish causes congestion as the fish enter the suction chamber, resulting in the fish squeezing and rubbing against each other, causing damage to the surface of the fish. This not only reduces the harvesting efficiency but also affects the quality of the product, seriously impacting the economic benefits of aquaculture. Utility Model Content

[0004] This invention provides an adjustable cover plate device for absorbing fish and a fish raft, in order to solve the problems mentioned in the background art of low quality of fish caught and inability to guarantee the fish catching rate.

[0005] To achieve the above objectives, this novel experimental design adopts the following technical solution:

[0006] An adjustable cover device for fish suction includes an annular grid with an inner ring support and an outer ring support. Multiple radially distributed support rods are provided between the inner and outer ring supports, dividing the grid into multiple fan-shaped grooves. Multiple detachable cover plates are provided at the top of the fan-shaped grooves.

[0007] Furthermore, the grille cover is fan-shaped, and multiple retaining strips are provided on the two arc edges of the grille cover.

[0008] Furthermore, the card strip is L-shaped and has outwardly sloping folded edges.

[0009] Furthermore, the grille cover is covered with a plastic protective layer.

[0010] Furthermore, the grille cover is provided with a handle.

[0011] Furthermore, the handle is U-shaped.

[0012] Furthermore, the grating cover is provided with multiple water-permeable holes.

[0013] To achieve the above objectives, this utility model also provides a fish rack, comprising an annular fish suction cavity with an open top, consisting of inner and outer covers and an annular inclined plate, wherein an adjustable cover device for fish suction is located at the top of the annular fish suction cavity.

[0014] Furthermore, the outer side of the inner cylinder cover and the top of the inner side of the outer cylinder cover are symmetrically provided with inner support parts and outer support parts, and the inner ring support and the outer ring support are supported on the corresponding inner support parts and outer support parts.

[0015] Furthermore, the annular inclined plate is inclined downward from the side opposite to the catching opening of the annular fish suction chamber to the catching outlet side.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention features symmetrical outer and inner support sections located inside the outer casing and at the top of the inner casing. Inner and outer ring supports are placed on their respective inner and outer support sections. Multiple radially distributed support rods are arranged between the inner and outer ring supports, dividing the grid into multiple fan-shaped slots. Matching detachable grid covers are located at the top of each fan-shaped slot, connected to the grid by clips and covered with a plastic protective layer. When the fish population is large, operators can easily remove the grid covers using a handle, significantly increasing the fish's passage area. This design effectively reduces surface damage to fish during passage and, through simple mechanical operation, significantly improves harvesting efficiency while reducing operator difficulty, achieving a dual effect of protection and efficiency. Attached Figure Description

[0018] Figure 1 This is a front view of the grille of the adjustable cover plate device for fish suction of this utility model.

[0019] Figure 2 This is a schematic diagram of the grid cover structure in this utility model.

[0020] Figure 3 This is a cross-sectional view of the adjustable cover plate device in this utility model.

[0021] Figure 4 This is a schematic diagram of the locking strip structure on the cover plate in this utility model.

[0022] Figure 5 This is a structural diagram of the fish raft of this utility model.

[0023] Figure 6 This is a partial structural cross-sectional view of the fish raft of this utility model.

[0024] Figure reference numerals:

[0025] Among them, 1-grid, 2-grid cover plate, 3-bar, 4-handle, 5-ring inclined plate, 6-ring-shaped fish suction chamber, 7-fishing outlet, 8-inner ring support, 9-outer ring support, 10-inner support part, 11-outer support part, 12-inner cover cylinder, 13-outer cover cylinder, 14-plastic protective layer, 15-water permeable hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] like Figures 1-5 As shown, an adjustable cover device for fish suction includes a circular grid 1. The circular grid 1 is provided with an inner circular support and an outer circular support. Multiple radially distributed support rods are provided between the inner and outer circular supports along the circumference. The support rods divide the grid 1 into multiple fan-shaped grooves. Multiple detachable grid cover plates 2 that match the top of the fan-shaped grooves are provided.

[0029] like Figure 3 As shown, the circular grid 1 is provided with an inner circular support 8 and an outer circular support 9. Multiple radially distributed support rods are provided between the inner and outer circular supports along the circumference. The support rods divide the grid 1 into multiple fan-shaped grooves. The grid cover plate 2 is connected to the grid 1 through a clip 3. Multiple handles 4 are provided on the grid cover plate 2.

[0030] like Figure 2 As shown, the grating cover 2 is fan-shaped, covered with a plastic protective layer 14, with multiple handles 4 welded to its surface, multiple water-permeable holes 15, and multiple retaining strips 3 on its two arc edges.

[0031] like Figure 4 As shown, the card strip 3 is L-shaped and has an outward-sloping folded edge.

[0032] Specifically, the grid 1 has multiple fan-shaped grooves, the grid cover 2 is located on the grid 1, the grid 1 is connected to the grid cover 2 by the clip 3, the grid cover 2 is provided with a plastic protective layer 11, and the handle 4 is located on the grid cover 2. The grid cover 2 is disassembled by the handle 4 to expand the passage area for fish to enter the annular fish suction chamber 6, improve the efficiency of fish capture, and realize dynamic control.

[0033] Example 2

[0034] like Figure 5 and Figure 6 As shown, a fish raft includes an inner cover cylinder 12, an outer cover cylinder 13, an annular fish suction cavity 6, and an annular inclined plate 5. The adjustable cover plate device described in Embodiment 1 is located at the top of the annular fish suction cavity 6 formed by the inner cover cylinder 12, the outer cover cylinder 13, and the annular inclined plate 5. The outer side of the inner cover cylinder 12 and the top of the inner side of the outer cover cylinder 13 are symmetrically provided with an inner support part 10 and an outer support part 11. The inner ring support 8 and the outer ring support 9 are located on the corresponding inner support part 10 and outer support part 11. Multiple radially distributed support rods are provided between the inner ring support 8 and the outer ring support 9 along the circumference. The grid 1 is connected to the grid cover plate 2 through a clip 3. The top of the grid cover plate 2 is provided with a handle 4. The annular inclined plate 5 is inclined downward from the opposite side of the fishing port of the annular fish suction cavity to the fishing outlet 7 side, guiding the fish to move along the annular inclined plate 5 of the annular fish suction cavity 6 towards the fishing outlet 7.

[0035] The specific working status is as follows:

[0036] The aforementioned adjustable fish suction cover device is installed on top of the annular inclined plate 5 of the annular fish suction chamber 6. An inner support 10 and an outer support 11 are symmetrically arranged on the outer side of the inner cover cylinder 12 and the inner side of the outer cover cylinder 13 of the fish raft. An inner ring support 8 and an outer ring support 9 are placed on the inner support 10 and the outer support 11. Multiple radially distributed support rods are arranged circumferentially between the inner ring support 8 and the outer ring support 9. The grille 1 is connected to the grille cover 2 via a locking strip 3. A handle 4 is provided on the top of the grille cover 2. In actual fishing operations, operators can quickly disassemble the grille cover 2 using the handle 4, thereby dynamically adjusting the passage area for fish to enter the annular fish suction chamber 6. This not only allows for flexible control of the fishing rate but also effectively reduces surface damage to fish, improving fishing efficiency and fish quality.

[0037] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. An adjustable cover device for suction fish, characterized in that, It includes a circular grid, on which an inner circular support and an outer circular support are provided. Multiple radially distributed support rods are provided between the inner and outer circular supports along the circumference. The support rods divide the grid into multiple fan-shaped grooves. Multiple detachable cover plates are provided at the top of the fan-shaped grooves.

2. The adjustable cover device for fish suction according to claim 1, characterized in that, The grid cover is fan-shaped, and multiple retaining strips are provided on the two arc edges of the grid cover.

3. The fish suction adjustable cover device according to claim 2, characterized in that, The card strip is L-shaped and has outward-sloping folded edges.

4. The adjustable cover device for fish suction according to claim 1, characterized in that, The grille cover is covered with a plastic protective layer.

5. The fish suction adjustable cover device according to claim 1, characterized in that, The grille cover is equipped with a handle.

6. The fish suction adjustable cover device according to claim 1, characterized in that, The handle is U-shaped.

7. The fish suction adjustable cover device according to claim 4, characterized in that, The grating cover plate is provided with multiple water-permeable holes.

8. A fish fillet, comprising an annular fish-suction cavity with an open top, formed by inner and outer casings and an annular inclined plate, characterized in that, The adjustable cover device for fish suction according to any one of claims 1-5 is located at the top of the annular fish suction cavity.

9. A fish fillet according to claim 8, characterized in that, The inner cylinder cover is symmetrically provided with an inner support part and an outer support part on the outer side and the inner top of the outer cylinder cover, and the inner ring support and the outer ring support are located on the corresponding inner support part and outer support part.

10. A fish fillet according to claim 9, characterized in that, The annular inclined plate is set downwards from the side opposite the catch opening of the annular fish suction chamber to the catch outlet side.

Images