A surface and underwater protective net uses an underwater fixing mechanism

Abstract

This utility model discloses an underwater fixing mechanism for surface and underwater protective nets, including an installation ring. Several sets of lifting lugs are fixedly installed on the outer side of the installation ring, and several sets of rotating sleeves are movably installed inside the installation ring. A limiting part is provided on the outer side of each rotating sleeve, and the outer side of the limiting part is movably installed inside the installation ring via a bearing. A auger drill bit is fixedly installed at the lower end of each rotating sleeve. This utility model involves placing the installation ring on the outside of an aquaculture net cage and lowering it to the seabed using ropes. Once on the seabed, a hydraulic motor is activated to drive the rotating sleeves to rotate, simultaneously driving the auger drill bit at the lower end to rotate downwards, fixing the installation ring to the seabed. Then, the hydraulic motor's oil pipe is lifted upwards, detaching the hydraulic motor, connecting frame, and magnet from the installation ring for retrieval. The installation ring is thus fixed to the seabed, effectively preventing movement and improving the protective effect of the net.

Description

Technical Field

[0001] This utility model relates to the field of underwater protective net fixing technology, and in particular to an underwater fixing mechanism for surface and underwater protective nets. Background Technology

[0002] In existing marine aquaculture, aquaculture cages are used for cultivation. In order to prevent seaweed and other debris from attaching to the outside of the cages and affecting the oxygen content inside the cages, and to prevent the cultured organisms from suffering from oxygen deficiency, an underwater protective net is usually fixed around the outside of the aquaculture cages.

[0003] Existing underwater protective nets are fixed in the sea by sinking heavy objects, but the fixation is not secure and they will move in the event of strong winds and waves, thus affecting the protective effect. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the existing technology, this utility model provides an underwater fixing mechanism for surface and underwater protective nets.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an underwater fixing mechanism for a water surface and underwater protective net, including an installation ring, several sets of lifting lugs are fixedly installed on the outer side of the installation ring, several sets of rotating sleeves are movably installed inside the installation ring, a limiting part is provided on the outer side of the rotating sleeve, the outer side of the limiting part is movably installed inside the installation ring through a bearing, and a spiral drill bit is fixedly installed at the lower end of the rotating sleeve.

[0006] Furthermore, several sets of iron plates are fixedly installed on the inner side of the mounting ring, magnets are attracted to the upper end of the iron plates, a connecting frame is fixedly installed above the magnets, and a hydraulic motor is fixedly installed above the connecting frame.

[0007] Furthermore, a hexagonal shaft is fixedly connected to the power output shaft of the hydraulic motor.

[0008] Furthermore, a hexagonal groove is provided in the middle of the rotating sleeve, and the hexagonal shaft is fitted and installed with the rotating sleeve.

[0009] The beneficial effects of this utility model are as follows: by placing the installation ring on the outside of the aquaculture net cage and lowering it to the seabed by rope hoisting, once it reaches the seabed, the hydraulic motor is started to drive the rotating sleeve to rotate, which in turn drives the lower auger to rotate downwards, fixing the installation ring to the seabed. Then, the hydraulic motor's oil pipe is lifted upwards, and the hydraulic motor, connecting frame, and magnet are separated from the installation ring for recovery. The installation ring is fixed to the seabed, which can effectively prevent movement and improve the protective effect of the protective net. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is the front view of the present invention;

[0012] Figure 2 This is a partial cross-sectional view of the present invention;

[0013] Figure 3 This is a top view of the present invention.

[0014] In the diagram: 1. Mounting ring, 2. Lifting lug, 3. Spiral drill bit, 4. Hydraulic motor, 5. Connecting frame, 6. Magnet, 7. Iron plate, 8. Rotating sleeve, 9. Hexagonal shaft, 10. Limiting part. Detailed Implementation

[0015] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0016] like Figures 1 to 3 As shown, this utility model includes an installation ring 1. Several sets of lifting lugs 2 are fixedly installed on the outer side of the installation ring 1. The upper end of the outer lifting lugs 2 is used to install an underwater protective net. The installation ring 1 is lowered into the sea by suspending the lifting lugs 2 with ropes. Several sets of rotating sleeves 8 are movably installed inside the installation ring 1. The outer side of the rotating sleeve 8 is provided with a limiting part 10. The outer side of the limiting part 10 is movably installed inside the installation ring 1 through a bearing. A spiral drill bit 3 is fixedly installed at the lower end of the rotating sleeve 8.

[0017] like Figure 1 and Figure 2 As shown, several sets of iron plates 7 are fixedly installed on the inner side of the mounting ring 1. A magnet 6 is attracted to the upper end of the iron plate 7. A connecting frame 5 is fixedly installed above the magnet 6. A hydraulic motor 4 is fixedly installed above the connecting frame 5. A hexagonal shaft 9 is fixedly connected to the power output shaft of the hydraulic motor 4. A hexagonal groove is provided in the middle of the rotating sleeve 8. The hexagonal shaft 9 is installed in conjunction with the rotating sleeve 8. The rotating sleeve 8 is driven to rotate by the hydraulic motor 4, which in turn drives the auger drill bit 3 at the lower end to rotate, thus fixing the mounting ring 1 to the seabed.

[0018] In use, this invention involves placing the installation ring 1 on the outside of the aquaculture net cage and lowering it to the seabed using ropes. Once on the seabed, the hydraulic motor 4 is activated to drive the rotating sleeve 8 to rotate, simultaneously driving the lower auger drill bit 3 to rotate downwards, thus fixing the installation ring 1 to the seabed. Then, the oil pipe of the hydraulic motor 4 is lifted upwards, detaching the hydraulic motor 4, connecting frame 5, and magnet 6 from the installation ring 1 for recovery. The installation ring 1 is thus fixed to the seabed, effectively preventing movement and improving the protective effect of the protective net.

[0019] The above embodiments are merely exemplary embodiments of the present utility model and are not intended to limit the present utility model. The scope of protection of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present utility model.

Claims

1. An underwater fixing mechanism for a surface-underwater protection net, comprising a mounting ring (1), characterized in that: Several sets of lifting lugs (2) are fixedly installed on the outside of the mounting ring (1), and several sets of rotating sleeves (8) are movably installed inside the mounting ring (1). A limiting part (10) is provided on the outside of the rotating sleeve (8), and the outside of the limiting part (10) is movably installed inside the mounting ring (1) through a bearing. A spiral drill bit (3) is fixedly installed at the lower end of the rotating sleeve (8).

2. The underwater fixing mechanism for a surface-underwater protection net according to claim 1, characterized by Several sets of iron plates (7) are fixedly installed on the inner side of the mounting ring (1). A magnet (6) is attracted to the upper end of the iron plate (7). A connecting frame (5) is fixedly installed above the magnet (6). A hydraulic motor (4) is fixedly installed above the connecting frame (5).

3. The underwater fixing mechanism for a surface-underwater protection net according to claim 2, characterized by The hydraulic motor (4) is fixedly connected to a hexagonal shaft (9) at its power output shaft.

4. The underwater fixing mechanism for a surface-underwater protection net according to claim 3, characterized by The rotating sleeve (8) has a hexagonal groove in the middle, and the hexagonal shaft (9) is installed in conjunction with the rotating sleeve (8).

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