阅读说明：本技术 一种水产养殖捕捞网用中空浮球装置及使用方法 (Hollow floating ball device for aquaculture fishing net and use method ) 是由 张大兵 张泽宇 于 2021-09-29 设计创作，主要内容包括：本发明公开了一种水产养殖捕捞网用中空浮球装置及使用方法,具体涉及水产养殖技术领域,包括第一空心浮球、第二空心浮球和中间框,所述中间框的正面和背面分别与第一空心浮球和第二空心浮球的相对面搭接,所述中间框的上表面开设有第一放置槽。本发明通过采用卷簧、旋转柱、连接柱、第一轴承、连接孔、中间杆、第三轴承和连接盖,此时旋转柱对渔网的上纲线进行缠绕拉紧,避免渔网顶部出现明显的弯折甚至松散情况,在对渔网的拉紧展开过程中,拉力不断拉扯上纲线,此时上纲线被拉直的同时带动旋转柱和连接柱转动,本装置可实现对渔网上纲线的自动缠绕拉紧,避免渔网出现松散进而跑鱼情况,使本装置的性能得到明显改善。(The invention discloses a hollow floating ball device for an aquaculture fishing net and a using method thereof, and particularly relates to the technical field of aquaculture. According to the invention, the coil spring, the rotary column, the connecting column, the first bearing, the connecting hole, the middle rod, the third bearing and the connecting cover are adopted, at the moment, the rotary column winds and tensions the head line of the fishing net, so that the obvious bending and even loosening condition at the top of the fishing net is avoided, in the tensioning and unfolding process of the fishing net, the tension force continuously pulls the upper steel wire, and the upper steel wire is straightened and simultaneously drives the rotary column and the connecting column to rotate.)

1. The utility model provides an aquaculture catches net and uses cavity floater device, includes first hollow floater (1), second hollow floater (2) and center (3), its characterized in that: the front surface and the back surface of the middle frame (3) are respectively lapped with the opposite surfaces of the first hollow floating ball (1) and the second hollow floating ball (2), a first placing groove (4) is formed in the upper surface of the middle frame (3), a first bearing (10) is arranged on the lower surface of the inner wall of the first placing groove (4), a rotating column (11) is arranged on the inner wall of the first bearing (10), the bottom end of the rotating column (11) is fixedly connected with the top end of a connecting column (14), the outer surface of the connecting column (14) is provided with a second bearing (16), the second bearing (16) is arranged on the lower surface of the inner wall of the middle frame (3), the outer surface of the connecting column (14) is provided with a coil spring (15), the other end of the coil spring (15) is fixedly connected with the front surface of the inner wall of the middle frame (3), the front and the back of the middle frame (3) are both provided with sliding holes (20);

the inner wall of the sliding hole (20) is in lap joint with the outer surface of the moving rod (22), one end, back to the back, of each of the two moving rods (22) is in lap joint with the opposite surfaces of the first hollow floating ball (1) and the second hollow floating ball (2), the opposite surfaces of the first hollow floating ball (1) and the second hollow floating ball (2) are fixedly connected with one ends, away from each other, of the two limiting columns (31), clamping grooves (33) are formed in the upper surfaces of the limiting columns (31), the inner walls of the clamping grooves (33) are in lap joint with the outer surfaces of the clamping blocks (34), the upper surfaces of the clamping blocks (34) are fixedly connected with the bottom ends of the second vertical rods (35), the top ends of the second vertical rods (35) are fixedly connected with the lower surface of the control plate (38), and the outer surfaces of the control plate (38) are in lap joint with the inner walls of the moving grooves (37);

the upper surface at carriage release lever (22), two is seted up in carriage release lever (37) the one end that carries on the back mutually in carriage release lever (22) has all seted up spacing groove (32), the surface of spacing post (31) and the inner wall overlap joint of spacing groove (32), carriage release lever (37) are linked together with spacing groove (32), perpendicular groove (26) have been seted up to the lower surface of sliding hole (20) inner wall, the lower surface joint of erecting groove (26) inner wall has first adapter sleeve (29), the surface overlap joint of first adapter sleeve (29) inner wall and first montant (28), the bottom of first montant (28) and the last fixed surface of kickboard (30) are connected, the top of first montant (28) and the lower fixed surface of second magnetic path (27) are connected.

2. The hollow floating ball device for the aquaculture fishing net according to claim 1, characterized in that: the upper surface and the lower surface of movable rod (22) respectively with the opposite face fixed connection of two slider (23), the surface and the spout (21) inner wall overlap joint of slider (23), two spout (21) are seted up respectively at the upper surface of sliding hole (20) inner wall and the lower surface of inner wall, two the relative one end of movable rod (22) all is provided with first magnetic path (24), the magnetism of first magnetic path (24) is the same with the magnetism of second magnetic path (27).

3. The hollow floating ball device for the aquaculture fishing net according to claim 1, characterized in that: the movable rod (22) is set to be rectangular, first elastic assemblies (25) are arranged on the back faces of the sliding blocks (23) on the front side and the back side respectively, the other ends of the first elastic assemblies (25) are fixedly connected with the inner wall of the sliding groove (21), and the sliding blocks (23) are set to be rectangular.

4. The hollow floating ball device for the aquaculture fishing net according to claim 1, characterized in that: the surface of second montant (35) is provided with second elastic component (39), the top of second elastic component (39) and the lower fixed surface connection of second adapter sleeve (36), the surface and the shifting chute (37) inner wall fixed connection of second adapter sleeve (36), the bottom of second elastic component (39) and the last fixed surface of fixture block (34) are connected, the rear side the one side that fixture block (34) are close to hollow floater (2) of second sets up for the slope.

5. The hollow floating ball device for the aquaculture fishing net according to claim 1, characterized in that: the control panel (38) has magnetism, two second standing grooves (8) are formed in the upper surface of the middle frame (3), the two second standing grooves (8) are communicated with the first standing groove (4), the inner wall of each second standing groove (8) is in lap joint with the outer surface of the corresponding mounting piece (6), the upper surface of the corresponding mounting piece (6) is in threaded connection with the corresponding threaded hole (9) through a bolt (7), and the corresponding threaded hole (9) is formed in the lower surface of the inner wall of the corresponding second standing groove (8).

6. The hollow floating ball device for the aquaculture fishing net according to claim 5, wherein: the outer surface overlap joint of first standing groove (4) inner wall and connecting lid (5), two the opposite face of installation piece (6) respectively with the front and the back fixed connection of connecting lid (5), the lower surface of connecting lid (5) is provided with third bearing (17), third bearing (17) inner wall is provided with intermediate lever (18).

7. The hollow floating ball device for the aquaculture fishing net according to claim 6, wherein: connecting hole (12) have been seted up on the top of column spinner (11), spread groove (19) have been seted up to the bottom of intermediate lever (18), connecting hole (12) and spread groove (19) inner wall all are provided with rubber pad (13), the shape of intermediate lever (18) and the shape looks adaptation of connecting hole (12).

8. A use method of a hollow floating ball device for an aquaculture fishing net is characterized by comprising the following steps:

s1, when the second hollow floating ball (2) needs to be replaced, a magnet with the magnetism opposite to that of the control board (38) is directly used and placed above the control board (38), at the moment, the magnetic force between the magnet and the control board (38) drives the second vertical rod (35) and the clamping block (34) to move upwards, when the clamping block (34) moves to be separated from the clamping groove (33), the limiting column (31) can be directly taken out of the limiting groove (32), at the moment, the dismounting process of the second hollow floating ball (2) is completed, then, a brand new second hollow floating ball (2) is selected, and then when the limiting column (31) is controlled to correspond to the limiting groove (32), the limiting column (31) is inserted into the limiting groove (32);

s2, the limiting column (31) extrudes the clamping block (34) to move upwards, when the clamping groove (33) moves to a position corresponding to the clamping block (34), the second elastic component (39) drives the clamping block (34) to move downwards into the clamping groove (33), the second hollow floating ball (2) is replaced at the moment, the connecting cover (5) is taken out upwards after the bolt (7) is taken down, the head line of the fishing net is placed into the connecting hole (12), the connecting cover (5) is placed into the first placing groove (4) downwards, the middle rod (18) is controlled to correspond to the head line position, the bolt (7) is controlled to rotate into the threaded hole (9), the assembly of the device and the fishing net is completed at the moment, and the device is placed into water for use;

s3, the gravity of the fishing net drives the device to move downwards, the buoyancy of the floating plate (30) moves upwards at the same time, the floating plate (30) drives the first vertical rod (28) and the second magnetic block (27) to move upwards, when the second magnetic block (27) moves close to the first magnetic block (24), the magnetic force between the first magnetic block (24) and the second magnetic block (27) drives the moving rod (22) to move away from the middle frame (3), at the moment, the first hollow floating ball (1) and the second hollow floating ball (2) move away from each other, when the device is used and leaves the water surface, the floating plate (30) and the second magnetic block (27) move downwards due to the self gravity, the second magnetic block (27) moves away from the first magnetic block (24), meanwhile, the first elastic component (25) drives the moving rod (22) to move, and at the moment, the first hollow floating ball (1) and the second hollow floating ball (2) move close to each other and are in contact with the middle frame (3).

Technical Field

The invention relates to the technical field of aquaculture, in particular to a hollow floating ball device for an aquaculture fishing net and a using method thereof.

Background

Fishing nets are indispensable fishing tools for fishery production. Coastal fishermen were initially caught at sea with simple netting gear. In the Ming dynasty, shallow sea fishing nets such as a lifting net and a stick net appear. The open sea fishing net appears after heading. Inland fishermen often catch the fish with small fishing gear. The main fisheries used in fishery production have been raised and fallen nets, inflated raising nets, baton nets, push nets, arch pocket nets, ground nets, insert nets, robbing nets, sticking nets, pull nets, running nets, trawling nets, netting, rotary nets, net tensioning, hooks, wreath poles, fishing lifts, foils, river purse nets, net lifting, net calling, net hanging, foil sliding nets, crab baskets, crab dumps and the like. The pull net and the flow net are commonly used for far-sea fishing, the sticky net is mostly used for inland river and offshore fishing, and the top of the fishing net is provided with corresponding floating balls to increase the buoyancy of the top of the fishing net.

For example, a Chinese patent (application number is CN 103988817A) discloses a float power generation trapping fishing net, which solves the problems that the power generation quantity is possibly insufficient for supplying illumination when the existing luminous fishing net vibrates insufficiently, and the net reconstruction cost is high. This device is including setting up the floater on net utensil side net line, its characterized in that: one side of the floating ball is connected with a floater through a swing rod, two ends of the swing rod are hinged with the floating ball and the floater respectively, the end part of the swing rod connected with the floater extends into the floater from the hinged point of the swing rod and the floater, the end part of the swing rod in the floater is provided with a sector gear, a gear meshed with the sector gear is arranged in the floater, two sides of the gear are connected with a generator through a forward ratchet wheel and a reverse ratchet wheel which are opposite in driving direction respectively, a trapping lamp irradiating downwards is further arranged in the floater, and the generator is connected with the trapping lamp through a rectifier. The invention generates electricity by asynchronous floating and sinking of the floating ball and the floater, provides power for the trapping lamp of the fishing net, makes full use of waves on the sea surface, and has small transformation on the net and easy realization.

However, the floating ball is small in size, the bearing stability of the fishing net is not ideal enough, and when the fishing net is not tensioned and unfolded after entering water, the fishing net between two adjacent floating balls is folded or even bent, so that the shielding effect of the top is not ideal, fish running is possible, the head line of the fishing net directly passes through the floating ball for use, and when the floating ball is damaged, the replacement process of the floating ball is not convenient and fast enough, so that the problem is solved by the hollow floating ball device for the aquaculture fishing net and the use method thereof.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a hollow floating ball device for an aquaculture fishing net and a using method thereof, and the invention aims to solve the technical problems that: the volume of floater self is less, and is not ideal enough to fishing net self's the stable ability of bearing, does not accomplish taut expansion during operation simultaneously after the fishing net is gone into water, and the fishing net between two adjacent floaters probably appears the fold and buckles even, leads to sheltering from the effect unsatisfactory at top, probably appears running the fish condition, and the last head line of fishing net directly passes the floater and uses, when the floater breakage appears, the change process of floater convenient and fast's problem inadequately.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an aquaculture catches net and uses cavity floater device, includes first hollow floater, second hollow floater and center frame, the front and the back of center frame respectively with the opposite face overlap joint of first hollow floater and second hollow floater, first standing groove has been seted up to the upper surface of center frame, the lower surface of first standing groove inner wall is provided with first bearing, first bearing inner wall is provided with the column spinner, the bottom of column spinner and the top fixed connection of spliced pole, the surface of spliced pole is provided with the second bearing, the second bearing sets up the lower surface at center frame inner wall, the surface of spliced pole is provided with the coil spring, the other end of coil spring and the front fixed connection of center frame inner wall, the sliding hole has all been seted up at the front and the back of center frame.

The utility model discloses a slide hole, including slide hole inner wall and carriage release lever, the surface overlap joint of slide hole inner wall and carriage release lever, two the one end that the carriage release lever carried on the back mutually respectively with the opposite face overlap joint of first hollow floater and second hollow floater, the opposite face of first hollow floater and second hollow floater respectively with the one end fixed connection that two spacing posts kept away from each other, the draw-in groove has been seted up to the upper surface of spacing post, the surface overlap joint of draw-in groove inner wall and fixture block, the upper surface of fixture block and the bottom fixed connection of second montant, the top of second montant and the lower fixed surface of control panel are connected, the surface and the travelling groove inner wall overlap joint of control panel.

The upper surface at the carriage release lever is seted up to the shifting chute, two the spacing groove has all been seted up to the one end that the carriage release lever carried on the back mutually, the surface of spacing post and the inner wall overlap joint in spacing groove, the shifting chute is linked together with the spacing groove, the lower surface of sliding hole inner wall has been seted up and has been erected the groove, the lower surface joint of erecting the inslot wall has first connecting sleeve, the outer surface overlap joint of first connecting sleeve inner wall and first montant, the bottom of first montant and the last fixed surface of kickboard are connected, the top of first montant and the lower fixed surface of second magnetic path are connected.

As a further scheme of the invention: the upper surface and the lower surface of the moving rod are fixedly connected with the opposite surfaces of the two sliding blocks respectively, the outer surfaces of the sliding blocks are in lap joint with the inner wall of the sliding groove, the two sliding grooves are formed in the upper surface and the lower surface of the inner wall of the sliding hole respectively, the two ends, opposite to the moving rod, of the moving rod are provided with first magnetic blocks, and the magnetism of the first magnetic blocks is the same as that of the second magnetic blocks.

As a further scheme of the invention: the movable rod is set to be rectangular, first elastic assemblies are arranged on the back faces of the sliding blocks on the front side and the back side respectively, the other ends of the first elastic assemblies are fixedly connected with the inner wall of the sliding groove, and the sliding blocks are set to be rectangular.

As a further scheme of the invention: the surface of second montant is provided with second elastic component, the top of second elastic component and the lower fixed surface of second adapter sleeve are connected, the surface and the shifting chute inner wall fixed connection of second adapter sleeve, the bottom of second elastic component and the last fixed surface of fixture block are connected, the rear side the fixture block is close to the one side of second hollow floater and sets up for the slope.

As a further scheme of the invention: the control board has magnetism, two second standing grooves have been seted up to the upper surface of center frame, and two second standing grooves all are linked together with first standing groove, the outer surface overlap joint of second standing groove inner wall and installation piece, the upper surface of installation piece passes through bolt and screw hole threaded connection, the lower surface at second standing groove inner wall is seted up to the screw hole.

As a further scheme of the invention: the first placing groove inner wall is in lap joint with the outer surface of the connecting cover, the opposite surfaces of the mounting pieces are fixedly connected with the front surface and the back surface of the connecting cover respectively, a third bearing is arranged on the lower surface of the connecting cover, and an intermediate rod is arranged on the inner wall of the third bearing.

As a further scheme of the invention: the connecting hole has been seted up on the top of column spinner, the spread groove has been seted up to the bottom of intermediate lever, connecting hole and spread groove inner wall all are provided with the rubber pad, the shape of intermediate lever and the shape looks adaptation of connecting hole.

A use method of a hollow floating ball device for an aquaculture fishing net comprises the following steps:

s1, when the second hollow floating ball needs to be replaced, the magnet which is opposite to the control board is directly used to be placed above the control board, the second vertical rod and the clamping block are driven by the magnetic force between the magnet and the control board to move upwards, when the clamping block moves to be separated from the clamping groove, the limiting column can be directly taken out of the limiting groove, the dismounting process of the second hollow floating ball is completed, then the brand new second hollow floating ball is selected, and when the limiting column is controlled to correspond to the limiting groove, the limiting column is inserted into the limiting groove;

s2, the limiting posts extrude the clamping blocks to move upwards, when the clamping grooves move to positions corresponding to the clamping blocks, the second elastic assembly drives the clamping blocks to move downwards to the clamping grooves, at the moment, the second hollow floating ball is replaced, the bolts are taken down, the connecting cover is taken out upwards, the head line of the fishing net is placed in the connecting hole, the connecting cover is placed downwards into the first placing groove, the position of the middle rod corresponding to the head line is controlled, the bolts are controlled to rotate to enter the threaded holes, at the moment, the device and the fishing net are assembled, and when the device is placed into water to be used;

s3, the gravity of the fishing net drives the device to move downwards at the moment, meanwhile, the buoyancy of the floating plate moves upwards, the floating plate drives the first vertical rod and the second magnetic block to move upwards at the moment, when the second magnetic block moves close to the first magnetic block, the magnetic force between the first magnetic block and the second magnetic block drives the movable rod to move away from the middle frame, the first hollow floating ball and the second hollow floating ball move away from each other at the moment, after the device is used and leaves the water surface, the floating plate and the second magnetic block move downwards due to the gravity of the floating plate, the second magnetic block moves away from the first magnetic block, meanwhile, the first elastic component drives the movable rod to move, and at the moment, the first hollow floating ball and the second hollow floating ball move close to each other and contact with the middle frame.

The invention has the beneficial effects that:

1. according to the invention, by adopting the coil spring, the rotary column, the connecting column, the first bearing, the connecting hole, the middle rod, the third bearing and the connecting cover, when the device enters water and does not finish the unfolding and tensioning operation, the coil spring drives the connecting column and the rotary column to rotate at the moment, the rotary column winds and tensions the head line of the fishing net at the moment, so that the top of the fishing net is prevented from being obviously bent or even loosened;

2. according to the invention, by arranging the movable rod, the sliding hole, the first hollow floating ball, the second hollow floating ball, the floating plate, the first vertical rod, the first magnetic block and the second magnetic block, when the device is used when entering water, the gravity of the fishing net and the buoyancy of the floating plate drive the floating plate to move upwards relative to the middle frame, at the moment, the floating plate drives the first magnetic block and the second magnetic block to move upwards to be close to the first magnetic block, at the moment, the movable rod moves away from the middle frame, and meanwhile, the distance between the first hollow floating ball and the second hollow floating ball is increased, so that the device increases the buoyancy at the top of the fishing net and simultaneously increases the stability of the fishing net;

3. according to the invention, by arranging the clamping block, the control plate, the limiting column, the limiting groove, the clamping groove and the second elastic component, when the second hollow floating ball needs to be disassembled, the control plate and the second vertical rod are directly adsorbed by the magnet which is opposite to the control plate to move upwards, the second vertical rod and the clamping block move upwards at the moment, and after the clamping block is separated from the clamping groove, the second hollow floating ball is taken down, the structure for installing the second hollow floating ball is not arranged in a protruding manner, so that the falling-off condition of the second hollow floating ball caused by mistaken touch in the use process is avoided, the process of replacing the second hollow floating ball by the device is convenient and rapid, and the installation stability is more ideal.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a perspective view of the middle frame according to the present invention;

FIG. 3 is a perspective view of a first bearing according to the present invention;

FIG. 4 is a schematic bottom perspective view of the connecting cover of the present invention;

FIG. 5 is a schematic perspective view of a partial cross-section of the middle frame according to the present invention;

FIG. 6 is a schematic perspective view of the floating plate according to the present invention;

FIG. 7 is a schematic three-dimensional structure of a second hollow floating ball according to the present invention;

FIG. 8 is a schematic cross-sectional view of a movable rod according to the present invention;

FIG. 9 is an enlarged view of part A of the present invention;

in the figure: 1. a first hollow floating ball; 2. a second hollow floating ball; 3. a middle frame; 4. a first placing groove; 5. a connecting cover; 6. mounting a sheet; 7. a bolt; 8. a second placing groove; 9. a threaded hole; 10. a first bearing; 11. a spin column; 12. connecting holes; 13. a rubber pad; 14. connecting columns; 15. a coil spring; 16. a second bearing; 17. a third bearing; 18. an intermediate lever; 19. connecting grooves; 20. a slide hole; 21. a chute; 22. a travel bar; 23. a slider; 24. a first magnetic block; 25. a first elastic member; 26. a vertical slot; 27. a second magnetic block; 28. a first vertical bar; 29. a first connecting sleeve; 30. a floating plate; 31. a limiting column; 32. a limiting groove; 33. a card slot; 34. a clamping block; 35. a second vertical bar; 36. a second connecting sleeve; 37. a moving groove; 38. a control panel; 39. a second elastic component.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-9, the invention provides a hollow floating ball device for an aquaculture fishing net, which comprises a first hollow floating ball 1, a second hollow floating ball 2 and a middle frame 3, wherein the front surface and the back surface of the middle frame 3 are respectively lapped with the opposite surfaces of the first hollow floating ball 1 and the second hollow floating ball 2, the upper surface of the middle frame 3 is provided with a first placing groove 4, the lower surface of the inner wall of the first placing groove 4 is provided with a first bearing 10, the inner wall of the first bearing 10 is provided with a rotating column 11, through the arrangement of the first bearing 10 and the first rotating column 11, the first bearing 10 can support and limit the first rotating column 11, the smooth and stable rotation of the first rotating column 11 is ensured, the rolling and tensioning of an upper line is realized while the first rotating column 11 rotates, the bottom end of the rotating column 11 is fixedly connected with the top end of a connecting column 14, the outer surface of the connecting column 14 is provided with a second bearing 16, the second bearing 16 is arranged on the lower surface of the inner wall of the middle frame 3, the coil spring 15 is arranged on the outer surface of the connecting column 14, the second bearing 16, the connecting column 14 and the second bearing 15 are arranged, the second bearing 16 supports and limits the connecting column 14, stable rotation of the connecting column 14 is guaranteed, meanwhile, torsion applied to the surface of the connecting column 14 by the coil spring 15 is transmitted to the surface of the rotating column 11, winding of an upper steel wire is achieved when the upper steel wire is loose, the other end of the coil spring 15 is fixedly connected with the front surface of the inner wall of the middle frame 3, and the front surface and the back surface of the middle frame 3 are provided with the sliding holes 20.

The inner wall of the sliding hole 20 is in lap joint with the outer surface of the moving rod 22, the moving rod 22 and the sliding hole 20 are arranged to facilitate the mutual distance and approach movement of the first hollow floating ball 1 and the second hollow floating ball 2, the distance between the first hollow floating ball 1 and the second hollow floating ball 2 is adjusted, one end of each of the two moving rods 22, which is opposite to each other, is in lap joint with the opposite surface of the first hollow floating ball 1 and the opposite surface of the second hollow floating ball 2 respectively, the first hollow floating ball 1 and the second hollow floating ball 2 are arranged to increase the integral buoyancy of the device, the opposite surfaces of the first hollow floating ball 1 and the second hollow floating ball 2 are fixedly connected with the end, which is far away from each other, of the two limiting columns 31 respectively, the upper surfaces of the limiting columns 31 are provided with clamping grooves 33, when the clamping block 34 is positioned in the clamping grooves 33, the assembly between the moving rod 22 and the limiting columns 31 is realized, and the side, which is close to the second hollow floating ball 2, of the clamping block 34 is obliquely arranged, the convenient in-process that moves to spacing groove 32 at spacing post 31 directly extrudes fixture block 34 and removes, and the outer surface overlap joint of draw-in groove 33 inner wall and fixture block 34, the upper surface of fixture block 34 and the bottom fixed connection of second montant 35, the top of second montant 35 and the lower fixed surface of control panel 38 are connected, the outer surface and the 37 inner wall overlap joints of shifting chute of control panel 38.

The moving groove 37 is arranged on the upper surface of the moving rod 22, the opposite ends of the two moving rods 22 are both provided with a limiting groove 32, the outer surface of the limiting column 31 is lapped with the inner wall of the limiting groove 32, the moving groove 37 is communicated with the limiting groove 32, the lower surface of the inner wall of the sliding hole 20 is provided with a vertical groove 26, the lower surface of the inner wall of the vertical groove 26 is connected with a first connecting sleeve 29 in a clamping manner, after the device is placed in water, the floating plate 30 drives the first vertical rod 28 and the second magnetic block 27 to move upwards through the buoyancy of the floating plate 30, the moving rod 22 is controlled to move by the same magnetism between the second magnetic block 27 and the first magnetic block 24, the movement of the first hollow floating ball 1 and the second hollow floating ball 2 is conveniently and automatically controlled, the inner wall of the first connecting sleeve 29 is lapped with the outer surface of the first vertical rod 28, the bottom end of the first vertical rod 28 is fixedly connected with the upper surface of the floating plate 30, the top end of the first vertical rod 28 is fixedly connected with the lower surface of the second magnetic block 27.

As shown in fig. 2, 5 and 6, the upper surface and the lower surface of the moving rod 22 are respectively fixedly connected with the opposite surfaces of the two sliding blocks 23, the outer surface of the sliding block 23 is lapped with the inner wall of the sliding groove 21, the two sliding grooves 21 are respectively formed in the upper surface and the lower surface of the inner wall of the sliding hole 20, the sliding block 23 and the sliding groove 21 are arranged, a limiting effect can be achieved on the moving process of the moving rod 22, the moving rod 22 is prevented from being separated from the sliding hole 20, the first magnetic block 24 is arranged at each of the opposite ends of the two moving rods 22, and the magnetism of the first magnetic block 24 is the same as that of the second magnetic block 27.

As shown in fig. 2 and 5, the movable rod 22 is set to be rectangular, the opposite surfaces of the front and rear sliders 23 are respectively provided with a first elastic component 25, the other end of the first elastic component 25 is fixedly connected with the inner wall of the chute 21, the sliders 23 are set to be rectangular, and by setting the first elastic component 25, after the floating plate 30 is separated from water, the first elastic component 25 drives the movable rod 22 to move the movable rod 22, so that the first hollow floating ball 1 and the second hollow floating ball 2 can be conveniently and automatically controlled to move close to the middle frame 3.

As shown in fig. 9, the outer surface of the second vertical rod 35 is provided with a second elastic component 39, the top end of the second elastic component 39 is fixedly connected with the lower surface of the second connecting sleeve 36, the outer surface of the second connecting sleeve 36 is fixedly connected with the inner wall of the moving groove 37, the bottom end of the second elastic component 39 is fixedly connected with the upper surface of the fixture block 34, by arranging the second elastic component 39, after the clamping groove 33 moves to the position corresponding to the fixture block 34, the second elastic component 39 drives the fixture block 34 to automatically move into the clamping groove 33, and the fixture block 34 is prevented from randomly swinging, and the surface of the rear fixture block 34 close to the second hollow floating ball 2 is obliquely arranged.

As shown in fig. 1 and 2, the control board 38 has magnetism, two second placing grooves 8 are formed in the upper surface of the middle frame 3, the two second placing grooves 8 are communicated with the first placing groove 4, the inner wall of each second placing groove 8 is in lap joint with the outer surface of the corresponding mounting piece 6, the upper surface of each mounting piece 6 is in threaded connection with a threaded hole 9 through a bolt 7, the threaded hole 9 is formed in the lower surface of the inner wall of the corresponding second placing groove 8, the corresponding connecting cover 5 and the corresponding middle rod 18 can be smoothly taken down after the bolts 7 are taken down, the limitation of the upper line can be removed, the whole device can be conveniently replaced, the middle rod 18 can be smoothly rotated while the third bearing 17 supports the middle rod 18 through the third bearing 17, and the subsequent rotary column 11 can conveniently wind the upper line.

As shown in fig. 1 and 4, the inner wall of the first placing groove 4 is overlapped with the outer surface of the connecting cover 5, the opposite surfaces of the two mounting pieces 6 are respectively fixedly connected with the front surface and the back surface of the connecting cover 5, the lower surface of the connecting cover 5 is provided with a third bearing 17, the inner wall of the third bearing 17 is provided with an intermediate rod 18, and the stable clamping and limiting of the upper steel wire can be realized by arranging the intermediate rod 18 and a rubber pad 13, so that the device is stably assembled to the surface of a fishing net.

As shown in fig. 3 and 4, the top end of the rotary column 11 is provided with a connecting hole 12, the bottom end of the intermediate rod 18 is provided with a connecting groove 19, the inner walls of the connecting hole 12 and the connecting groove 19 are both provided with rubber pads 13, and the shape of the intermediate rod 18 is matched with the shape of the connecting hole 12.

A use method of a hollow floating ball device for an aquaculture fishing net comprises the following steps:

s1, when the second hollow floating ball 2 needs to be replaced, a magnet with the magnetism opposite to that of the control board 38 is directly used and placed above the control board 38, at the moment, the magnet and the control board 38 drive the second vertical rod 35 and the clamping block 34 to move upwards, when the clamping block 34 moves to be separated from the clamping groove 33, the limiting column 31 can be directly taken out of the limiting groove 32, at the moment, the dismounting process of the second hollow floating ball 2 is completed, then, a brand new second hollow floating ball 2 is selected, and then, when the limiting column 31 is controlled to correspond to the limiting groove 32, the limiting column 31 is inserted into the limiting groove 32;

s2, the limiting column 31 extrudes the clamping block 34 to move upwards, when the clamping groove 33 moves to a position corresponding to the clamping block 34, the second elastic component 39 drives the clamping block 34 to move downwards to the clamping groove 33, at the moment, the replacement of the second hollow floating ball 2 is completed, the bolt 7 is taken down, the connecting cover 5 is taken out upwards, the head line of the fishing net is placed in the connecting hole 12, the connecting cover 5 is placed downwards into the first placing groove 4, the position of the middle rod 18 corresponding to the head line is controlled, then the bolt 7 is controlled to rotate to enter the threaded hole 9, at the moment, the assembly of the device and the fishing net is completed, and when the device is placed into water for use;

s3, the gravity of the fishing net drives the device to move downwards, meanwhile, the buoyancy of the floating plate 30 moves upwards, the floating plate 30 drives the first vertical rod 28 and the second magnetic block 27 to move upwards, when the second magnetic block 27 moves close to the first magnetic block 24, the magnetic force between the first magnetic block 24 and the second magnetic block 27 drives the moving rod 22 to move away from the middle frame 3, at the moment, the first hollow floating ball 1 and the second hollow floating ball 2 move away from each other, after the device leaves the water surface after use, the floating plate 30 and the second magnetic plate move downwards due to the gravity of the second magnetic block 27, the second magnetic block 27 moves away from the first magnetic block 24, meanwhile, the first elastic component 25 drives the moving rod 22 to move, and at the moment, the first hollow floating ball 1 and the second hollow floating ball 2 move close to each other and contact with the middle frame 3.

In summary, the present invention:

according to the invention, by adopting the coil spring 15, the rotating column 11, the connecting column 14, the first bearing 10, the connecting hole 12, the intermediate rod 18, the third bearing 17 and the connecting cover 5, when the device is immersed in water and does not finish the unfolding and tensioning operation, the coil spring 15 drives the connecting column 14 and the rotating column 11 to rotate, the rotating column 11 winds and tensions the head line of the fishing net at the moment, so that the condition that the top of the fishing net is obviously bent or even loosened is avoided, in the process of tensioning and unfolding the fishing net, the tension continuously pulls the head line, and the head line is straightened and simultaneously drives the rotating column 11 and the connecting column 14 to rotate.

According to the invention, by arranging the moving rod 22, the sliding hole 20, the first hollow floating ball 1, the second hollow floating ball 2, the floating plate 30, the first vertical rod 28, the first magnetic block 24 and the second magnetic block 27, when the device is used when entering water, the gravity of the fishing net and the buoyancy force applied to the floating plate 30 drive the floating plate 30 to move upwards relative to the middle frame 3, at the moment, the floating plate 30 drives the first magnetic block 24 and the second magnetic block 27 to move upwards to be close to the first magnetic block 24, at the moment, the moving rod 22 moves away from the middle frame 3, and meanwhile, the distance between the first hollow floating ball 1 and the second hollow floating ball 2 is increased, so that the device increases the buoyancy force at the top of the fishing net and simultaneously increases the stability of the fishing net.

According to the invention, by arranging the clamping block 34, the control plate 38, the limiting column 31, the limiting groove 32, the clamping groove 33 and the second elastic component 39, when the second hollow floating ball 2 needs to be disassembled, the control plate 38 and the second vertical rod 35 are directly adsorbed by the magnet with the magnetism opposite to that of the control plate 38 to move upwards, at the moment, the second vertical rod 35 and the clamping block 34 move upwards, after the clamping block 34 is separated from the clamping groove 33, the second hollow floating ball 2 is taken down, the structure for installing the second hollow floating ball 2 is not arranged in a protruding manner, the situation that the second hollow floating ball 2 falls off due to mistaken touch in the using process is avoided, the process of replacing the second hollow floating ball 2 by the device is convenient and quick, and the installation stability is more ideal.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.