阅读说明：本技术 一种天然水域不同规格鱼类分类及捕捞装置 (Device for classifying and fishing fishes with different specifications in natural water area ) 是由 储忝江 刘凯 王宇希 于 2021-08-23 设计创作，主要内容包括：本发明涉及鱼类捕捞设备技术领域,具体涉及一种天然水域不同规格鱼类分类及捕捞装置,包括浮筒,两个所述浮筒内壁顶部均通过螺栓固定安装有电机,所述电机输出端焊接有电动推杆。本发明克服了现有技术的不足,通过电机运行和两个锥齿轮等部件的连接,配合螺纹杆带动方板进行升降,通过方板将浮筒内水排出,来方便人们使用需求来控制浮筒的浮力,便于在平常时将浮筒部分隐藏在水里,防止不法分子通过观察浮筒而对装置内的鱼进行偷盗,且连接绳拉动时会使橡胶斜环像“针筒”胶塞一样将密封槽内残留的部分水给抽出,来对浮筒内壁顶部进行防水,整体上只需单个电机,便可完成拉动捕捞网架和调节浮筒浮力等多重效果,提高了装置的适用性。(The invention relates to the technical field of fish catching equipment, in particular to a fish classifying and catching device with different specifications in a natural water area. The invention overcomes the defects of the prior art, the square plate is driven to lift by matching with a threaded rod through the operation of a motor and the connection of two bevel gears and other components, the water in the floating barrel is discharged through the square plate, so that the buoyancy of the floating barrel can be conveniently controlled according to the use requirements of people, the floating barrel is conveniently partially hidden in the water at ordinary times, the fish in the device can be prevented from being stolen by lawless persons through observing the floating barrel, and the rubber inclined ring can draw out part of water remained in the sealing groove like a needle cylinder rubber plug when the connecting rope is pulled so as to prevent the top of the inner wall of the floating barrel from being waterproofed.)

1. The utility model provides a device is categorised and catches to different specification fishes in natural waters, includes flotation pontoon (1), its characterized in that: two the top of the inner wall of the floating barrel (1) is fixedly provided with a motor (2) through a bolt, the output end of the motor (2) is welded with an electric push rod (21), one end of the outer wall of the electric push rod (21) is fixedly sleeved with a first bevel gear (23), the bottom of the first bevel gear (23) is meshed with a second bevel gear (24) which is vertically distributed, the inner of the second bevel gear (24) is fixedly sleeved with a threaded rod (25), the two ends of the threaded rod (25) are respectively rotatably sleeved at the top and the bottom of the inner wall of the floating barrel (1), the outer wall of the threaded rod (25) is sleeved with a square plate (3), the square plate (3) is slidably sleeved on the inner wall of the floating barrel (1), the bottom of the inner wall of the floating barrel (1) is provided with two through holes (15) which are symmetrically distributed, the square plate (3) is positioned between the motor (2) and the through holes (15), and the outer wall of the electric push rod (21) is wound with a connecting rope (4), the outer wall of the connecting rope (4) is fixedly sleeved with uniformly distributed rubber inclined rings (41), a sealing groove (32) is formed in the square plate (3), the sealing groove (32) is shaped like a hourglass, the middle part of the inner wall of the sealing groove (32) is fixedly sleeved with a rubber water-blocking ring (34) at the bottom, a chute (35) is formed in the bottom of the rubber water-blocking ring (34), the top of the rubber inclined ring (41) is in contact with the top of the chute (35), the rubber inclined ring (41) is movably sleeved in the sealing groove (32), a catching net rack (6) is wound between the bottom ends of the connecting rope (4), a thick-hole net plate (61), a middle-hole net plate (62) and a fine-hole net plate (63) are movably sleeved in the catching net rack (6), the uniformly distributed positioning round holes (66) are formed in the catching net rack (6), and the thick-hole net plate (61), the middle-hole net plate (62) and the fine-hole net plate (63) are respectively matched with the positioning round holes (66) through bolts and in a threaded manner, catch net rack (6) inner wall top fixed cover and have bait casting machine (64), bait casting machine (64) are located between coarse mesh otter board (61) and mesopore otter board (62), fixed cover has evenly distributed's cavity round platform pipe (67) on one side of coarse mesh otter board (61), mesopore otter board (62) and pore otter board (63).

2. The fish sorting and catching device of different specifications in natural waters according to claim 1, wherein: the utility model discloses a water-proof electric telescopic handle, including flotation pontoon (1), backup pad (5) bottom has multistage waterproof electric telescopic handle (51) through bolt fixed mounting, multistage waterproof electric telescopic handle (51) bottom fixed mounting has kickboard (52).

3. The fish sorting and catching device of different specifications in natural waters according to claim 1, wherein: two partition plates (22) which are symmetrically distributed are fixedly sleeved on the outer wall of the electric push rod (21), and the top end of the connecting rope (4) is located between the two partition plates (22).

4. The fish sorting and catching device of different specifications in natural waters according to claim 1, wherein: the fixed cover in square slab (3) outer wall bottom has sealing ring (31), sealing ring (31) outer wall contacts with flotation pontoon (1) inner wall, second bevel gear (24) are located directly over square slab (3).

5. The fish sorting and catching device of different specifications in natural waters according to claim 2, wherein: float bowl (1) inner wall top is through bolt fixed mounting time relay (11) and battery (12), float bowl (1) inner wall top fixed sleeve has trachea (13).

6. The fish sorting and catching device of claim 5 for natural waters with different specifications, wherein: trachea (13) inner wall top fixed mounting has solenoid valve (14), machine of feeding (64) and time relay (11) electric connection.

7. The fish sorting and catching device of claim 6 wherein the fish sorting and catching device comprises: the time relay (11), the electromagnetic valve (14), the motor (2), the electric push rod (21) and the multi-stage waterproof electric telescopic rod (51) are electrically connected with the storage battery (12), and the storage battery (12) is electrically connected with an external power supply through an interface.

8. The fish sorting and catching device of different specifications in natural waters according to claim 1, wherein: catch net rack (6) inner wall one side and rotate through the hinge and be connected with evenly distributed three baffle (65), mesopore otter board (62) are located between coarse mesh otter board (61) and fine pore otter board (63).

9. The fish sorting and catching device of different specifications in natural waters according to claim 1, wherein: the aperture size of mesopore otter board (62) is less than the aperture size of coarse mesh otter board (61), the aperture size of pore otter board (63) is less than the aperture size of mesopore otter board (62), the aperture size of pore otter board (63) equals with the aperture size of catching rack (6).

10. The fish sorting and catching device of different specifications in natural waters according to claim 1, wherein: the top of the inner wall of the sealing groove (32) is fixedly sleeved with a rubber ring (33), and the inner walls of the rubber ring (33) and the rubber water-blocking ring (34) are all in contact with the outer wall of the connecting rope (4).

Technical Field

The invention relates to the technical field of fish catching equipment, in particular to a device for classifying and catching fishes with different specifications in a natural water area.

Background

Natural bodies of water are a range of naturally occurring bodies of water. Oceans, rivers, lakes, marshes, and the like are all natural waters. People often catch fish in natural waters using catching devices. The ocean occupying about 2/3 of the surface area of the earth is a main site for fishing historically, the world ocean fishing yield generally occupies about 90% of the total fishing yield, and the inland water fishing yield occupies about 10%. Ocean fishing can be divided into coastal, offshore and ocean (including open sea) operations. The aquatic animal resources in coastal and offshore water areas are rich, and the unit catch amount is high; the ocean fishing is far away from the base, the fishing equipment and technical requirements are high, the resource density is low, and the production cost is high. Therefore, the amount of fishing in countries around the world is mainly from the coastal and offshore areas.

However, the fish after fishing are different in size and different in selling price, and the larger the fish is, the more expensive the fish with larger size is, the more the fish with larger size is sold, so that the people are required to manually classify and screen the fish with different sizes and specifications after fishing, the time and labor are wasted, the people are required to pull the existing fishing device from water to a ship after fishing, the device is required to be put in water again after the fish in the device is taken out, and the fish taking is troublesome, so that the requirements of the prior art cannot be met.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a device for classifying and catching fishes with different specifications in a natural water area, overcomes the defects of the prior art and aims to solve the problems that fishes with different sizes and specifications cannot be classified and caught and the fish taking process cannot be more convenient.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a device is categorised and catches to different specification fishes in natural waters, includes the flotation pontoon, two the flotation pontoon inner wall top all has the motor through bolt fixed mounting, the welding of motor output end has electric putter, the fixed cover of electric putter one end outer wall has first bevel gear, the meshing of first bevel gear bottom is connected with the second bevel gear of vertical distribution, the fixed cover has the threaded rod in the second bevel gear, the threaded rod both ends are rotated the cover respectively and are put in flotation pontoon inner wall top and bottom, threaded rod outer wall thread bush has the square plate, square plate sliding sleeve is at the flotation pontoon inner wall, two through-holes of symmetric distribution are seted up to flotation pontoon inner wall bottom, the square plate is located between motor and the through-hole.

The outer wall of the electric push rod is wound with connecting ropes, the outer wall of the connecting ropes is fixedly sleeved with uniformly distributed rubber inclined rings, a sealing groove is formed in the square plate, the sealing groove is shaped like a sandglass, the middle part and the bottom of the inner wall of the sealing groove are fixedly sleeved with rubber water-blocking rings, the bottoms of the rubber water-blocking rings are provided with chutes, the tops of the rubber inclined rings are contacted with the tops of the chutes, the rubber inclined rings are movably sleeved in the sealing groove, a catching net frame is wound between the two bottom ends of the connecting ropes, a coarse mesh plate, a middle mesh plate and a fine mesh plate are movably sleeved in the catching net frame, uniformly distributed positioning round holes are formed in the catching net frame, the coarse mesh plate, the middle mesh plate and the fine mesh plate are respectively matched with the positioning round holes through bolts and are in threaded fixation, a bait casting machine is fixedly sleeved at the top of the inner wall of the catching net frame, and the bait casting machine is positioned between the coarse mesh plate and the middle mesh plate, and hollow round table tubes which are uniformly distributed are fixedly sleeved on one sides of the coarse mesh plate, the medium mesh plate and the fine mesh plate.

According to a preferable technical scheme, the outer wall of the buoy is welded with two symmetrically distributed supporting plates, the bottoms of the supporting plates are fixedly provided with a multi-stage waterproof electric telescopic rod through bolts, the bottom end of the multi-stage waterproof electric telescopic rod is fixedly provided with a floating plate, and the floating plate can support the device when the buoy leaves the water surface.

As a preferred technical scheme of the invention, the outer wall of the electric push rod is fixedly sleeved with two partition plates which are symmetrically distributed, the top end of the connecting rope is positioned between the two partition plates, and the partition plates can partition the electric push rod.

According to a preferable technical scheme of the invention, the bottom of the outer wall of the square plate is fixedly sleeved with a sealing ring, the outer wall of the sealing ring is in contact with the inner wall of the buoy, the second bevel gear is positioned right above the square plate, and the sealing ring can seal the space between the buoy and the square plate.

As a preferred technical scheme of the invention, the time relay and the storage battery are fixedly arranged at the top of the inner wall of the buoy through bolts, and the air pipe is fixedly sleeved at the top of the inner wall of the buoy, so that the buoy can conveniently fix a plurality of components.

According to a preferable technical scheme of the invention, the electromagnetic valve is fixedly mounted at the top of the inner wall of the air pipe, the bait casting machine is electrically connected with the time relay, and the time relay can be electrically started at regular time according to the setting of people.

As a preferred technical scheme of the invention, the time relay, the electromagnetic valve, the motor, the electric push rod and the multi-stage waterproof electric telescopic rod are electrically connected with the storage battery, and the storage battery is electrically connected with an external power supply through an interface, so that the external power supply can supply power to the storage battery through an electric port.

As a preferred technical scheme of the invention, one side of the inner wall of the fishing net rack is rotatably connected with three baffle plates which are uniformly distributed through hinges, and the middle-hole net plate is positioned between the coarse-hole net plate and the fine-hole net plate.

As a preferable technical scheme of the invention, the aperture size of the middle-hole screen plate is smaller than that of the coarse-hole screen plate, the aperture size of the fine-hole screen plate is smaller than that of the middle-hole screen plate, and the aperture size of the fine-hole screen plate is equal to that of the fishing net rack, so that fishes with different sizes and specifications can conveniently pass through the screen plates with different apertures.

According to a preferable technical scheme of the invention, the top of the inner wall of the sealing groove is fixedly sleeved with a rubber ring, the inner walls of the rubber ring and the rubber water-blocking ring are both contacted with the outer wall of the connecting rope, and the effect of multiple sealing in the sealing groove is achieved through the rubber ring and the rubber water-blocking ring.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, fishes with different sizes entering the fishing net rack are classified and screened through the difference of the pore diameters of the coarse-pore net plate, the medium-pore net plate and the fine-pore net plate, so that the fishes with different sizes can be conveniently classified and fished, the positions of the three net plates in the fishing net rack can be adjusted, people can conveniently control the moving spaces of the fishes with different sizes in the fishing net rack according to requirements, the time relay can regularly spread materials through the bait throwing machine, the manual spreading is not needed, and the fishing net rack is more convenient.

(2) The electric fishing net rack has the advantages that the motor rotates forwards and backwards, the electric push rod can be driven to rotate to roll or release the connecting ropes, the two connecting ropes can pull the fishing net rack to lift, the fishing net rack can catch fishes at different depths conveniently, the multi-stage waterproof electric telescopic rods can enable the floating barrel to be far away from the water surface after being extended, the fishing net rack can be pulled away from the water surface by matching with the connecting ropes, people can take the fishes in the fishing net rack out of the water surface conveniently, the fishing net rack is directly put into the water after being taken out, the device does not need to be pulled onto a ship and then put on the ship in the fish taking process, and the fish taking process is time-saving, labor-saving, convenient and practical.

(3) The invention controls the buoyancy of the buoy by the operation of the motor and the connection of two bevel gears and other components, drives the square plate to lift by matching with the threaded rod, discharges water in the buoy through the square plate, is convenient for people to use and demand, is convenient for partially hiding the buoy in water at ordinary times, prevents lawless persons from stealing fish in the device by observing the buoy, and can draw out part of water remained in the sealing groove like a 'needle cylinder' rubber plug by the rubber inclined ring when the connecting rope is pulled so as to prevent the top of the inner wall of the buoy from being water.

Drawings

FIG. 1 is an elevational view of the overall construction of the present invention;

FIG. 2 is an enlarged view of the structure A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the spar structure of FIG. 1 in accordance with the present invention;

FIG. 4 is an enlarged view of the structure B of FIG. 3 according to the present invention;

FIG. 5 is an elevational view of the overall construction of the present invention;

FIG. 6 is a side view of the overall structure of the present invention;

FIG. 7 is a bottom view of the rubber water stop ring of the present invention;

fig. 8 is a connection diagram of the connection rope and the rubber inclined ring of the present invention.

In the figure: 1. a float bowl; 11. a time relay; 12. a storage battery; 13. an air tube; 14. an electromagnetic valve; 15. a through hole; 2. a motor; 21. an electric push rod; 22. a partition plate; 23. a first bevel gear; 24. a second bevel gear; 25. a threaded rod; 3. a square plate; 31. a seal ring; 32. a sealing groove; 33. a rubber ring; 34. a rubber water-blocking ring; 35. a chute; 4. connecting ropes; 41. a rubber inclined ring; 5. a support plate; 51. a multi-stage waterproof electric telescopic rod; 52. a floating plate; 6. a catching net rack; 61. a coarse mesh screen plate; 62. a mesoporous screen plate; 63. a fine mesh net plate; 64. a bait casting machine; 65. a baffle plate; 66. positioning the circular hole; 67. a hollow circular truncated cone tube.

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.

Referring to fig. 1-8, a fish classifying and catching device for different specifications in a natural water area comprises two buoys 1, wherein the buoys 1 are hollow and have buoyancy, motors 2 are fixedly mounted on the tops of the inner walls of the two buoys 1 through bolts, the buoys 1 can support the motors 2, the motors 2 can rotate forward and backward, which is not described in detail herein in the prior art, an electric push rod 21 is welded on the output end of the motor 2, the motors 2 can drive the electric push rod 21 to rotate after operation, a first bevel gear 23 is fixedly sleeved on the outer wall of one end of the electric push rod 21, the electric push rod 21 can drive the first bevel gear 23 to move transversely after expansion, a second bevel gear 24 which is vertically distributed is engaged with the bottom of the first bevel gear 23, the second bevel gear 24 can rotate after rotation of the first bevel gear 23, a threaded rod 25 is fixedly sleeved in the second bevel gear 24, and the second bevel gear 24 can drive the threaded rod 25 to rotate, threaded rod 25 both ends rotate the cover respectively and are in 1 inner wall top of flotation pontoon and bottom, the flotation pontoon of being convenient for 1 supports threaded rod 25 with spacing, threaded rod 25 outer wall thread bush has square plate 3, threaded rod 25 can drive square plate 3 after rotatory and carry out the lift removal, square plate 3 is the cuboid shape, flotation pontoon 1 can carry on spacingly to square plate 3 for square plate 3 can only go up and down and can not rotate, 3 sliding sleeve of square plate are in 1 inner wall of flotation pontoon, the square plate 3 lift removal in flotation pontoon 1 of being convenient for.

The bottom of the inner wall of the buoy 1 is provided with two through holes 15 which are symmetrically distributed, so that external water can enter the buoy 1 through the through holes 15 to sink the buoy 1, the square plate 3 is positioned between the motor 2 and the through holes 15, the square plate 3 can only lift and move between the motor 2 and the through holes 15, the outer wall of the electric push rod 21 is wound with a connecting rope 4, the electric push rod 21 can roll or release the connecting rope 4 after rotating, the outer wall of the connecting rope 4 is fixedly sleeved with rubber inclined rings 41 which are uniformly distributed, the rubber inclined rings 41 are made of rubber materials and have elasticity, the tops of the rubber inclined rings 41 are inclined, so that the water can rapidly flow down from the rubber inclined rings 41, a sealing groove 32 is formed in the square plate 3, the sealing groove 32 is convenient for the connecting rope 4 to pass through the square plate 3, the hourglass shape of the sealing groove 32 is formed, the two ends of the sealing groove 32 are large and the middle is small, so that the middle part of the sealing groove 32 is the same as the inner wall of a syringe, the middle part and the bottom of the inner wall of the sealing groove 32 are fixedly sleeved with rubber water blocking rings 34, the rubber water blocking rings 34 can block water, and the probability that the water enters the sealing groove 32 is reduced.

The chute 35 has been seted up to rubber ring 34 bottom that blocks water, rubber inclined ring 41 top contacts with the chute 35 top, as shown in fig. 4, there is the interval rubber inclined ring 41 and chute 35, make rubber inclined ring 41 along with connecting rope 4 when rising, the water that is taken up by rubber inclined ring 41 can pass through the interval between rubber inclined ring 41 and the chute 35 and flow down, make water difficult to enter into in the seal groove 32, rubber inclined ring 41 movable sleeve is in the seal groove 32, make when connecting rope 4 descends, rubber inclined ring 41 can contact with seal groove 32 inner wall middle part, give out remaining part of water in the seal groove 32 like "cylinder" plug and take out, make water can not overflow the top of square plate 3, come to carry out water protection to parts such as motor 2 at the top of flotation pontoon 1 inner wall.

A catching net frame 6 is wound between the bottom ends of the two connecting ropes 4, the two connecting ropes 4 can drive the catching net frame 6 to go up and down, or one connecting rope 4 can be directly lifted up to keep the other connecting rope 4 still, so that the catching net frame 6 can be inclined, the spread materials can be conveniently inclined and discharged into other areas in the catching net frame 6, a coarse mesh plate 61, a middle mesh plate 62 and a fine mesh plate 63 are movably sleeved in the catching net frame 6, the coarse mesh plate 61, the middle mesh plate 62 and the fine mesh plate 63 can separate the inside of the catching net frame 6, uniformly distributed positioning round holes 66 are arranged in the catching net frame 6, the coarse mesh plate 61, the middle mesh plate 62 and the fine mesh plate 63 are respectively matched and screwed with the positioning round holes 66 through bolts, so that the three mesh plates after being adjusted are conveniently fixed with the catching net frame 6, a bait casting machine 64 is fixedly sleeved on the top of the inner wall of the catching net frame 6, the fishing net rack 6 can fix the bait casting machine 64, the bait casting machine 64 is positioned between the coarse mesh screen 61 and the middle mesh screen 62, the bait casting machine 64 can cast materials between the coarse mesh screen 61 and the middle mesh screen 62, one sides of the coarse mesh screen 61, the middle mesh screen 62 and the fine mesh screen 63 are fixedly sleeved with hollow circular truncated cone pipes 67 which are uniformly distributed, the hollow circular truncated cone pipes 67 are hollow circular truncated cones inside, one end of each circular truncated cone pipe is large, the other end of each circular truncated cone pipe is small, and therefore fishes cannot swim back and escape when entering the corresponding area of the fishing net rack 6.

Specifically, please refer to fig. 5-6, the outer wall of the float 1 is welded with two support plates 5 which are symmetrically distributed, the float 1 can support the support plates 5, the bottom of the support plates 5 is fixedly provided with a multi-stage waterproof electric telescopic rod 51 through bolts, the multi-stage waterproof electric telescopic rod 51 can lift the support plates 5 after stretching, the bottom end of the multi-stage waterproof electric telescopic rod 51 is fixedly provided with a floating plate 52, and the floating plate 52 can support the multi-stage waterproof electric telescopic rod 51.

Specifically, referring to fig. 3, the outer wall of the electric push rod 21 is fixedly sleeved with two partition plates 22 which are symmetrically distributed, the top end of the connecting rope 4 is located between the two partition plates 22, and the partition plates 22 can partition the electric push rod 21 to prevent the connecting rope 4 from rolling up to other areas on the electric push rod 21 to hinder the rotation of the first bevel gear 23 and other components.

Specifically, referring to fig. 3, a sealing ring 31 is fixedly sleeved at the bottom of the outer wall of the square plate 3, the outer wall of the sealing ring 31 contacts with the inner wall of the buoy 1, the sealing ring 31 can seal the joint between the square plate 3 and the inner wall of the buoy 1, and the second bevel gear 24 is located right above the square plate 3, so that the square plate 3 can rotate at the bottom of the second bevel gear 24.

Specifically, please refer to fig. 3, a time relay 11 and a storage battery 12 are fixedly installed on the top of the inner wall of the float 1 through bolts, so that the time relay 11 and the storage battery 12 are supported and fixed by the float 1, an air pipe 13 is fixedly sleeved on the top of the inner wall of the float 1, and the air pipe 13 can ensure the circulation of air at the top of the float 1 when the square plate 3 is lifted, thereby preventing the air pressure at the top of the float 1 from being reduced due to the descending of the float plate 3, and preventing the damage of the motor 2 and other components at the top of the float 1.

Specifically, referring to fig. 3, an electromagnetic valve 14 is fixedly installed on the top of the inner wall of the air pipe 13, the electromagnetic valve 13 can control the opening or closing of the air pipe 13, so as to prevent external water from entering the float 1 through the air pipe 13, the bait casting machine 64 is electrically connected with the time relay 11, and the time relay 11 can turn on or off the bait casting machine 64 at regular time.

Specifically, referring to fig. 1 and 3, the time relay 11, the electromagnetic valve 14, the motor 2, the electric push rod 21, and the multi-stage waterproof electric telescopic rod 51 are electrically connected to the storage battery 12, the storage battery 12 can supply power to the above components, the storage battery 12 is electrically connected to an external power source through an interface, and the external power source charges the storage battery 12.

Specifically, referring to fig. 1, three baffles 65 are rotatably connected to one side of the inner wall of the fishing net rack 6 through hinges and are uniformly distributed, so that the baffles 65 can be rotated conveniently, fish in the fishing net rack can be taken out through holes blocked by the baffles 65, and the middle hole screen plate 62 is positioned between the coarse hole screen plate 61 and the fine hole screen plate 63.

Specifically, referring to fig. 1, the pore size of the middle-pore screen plate 62 is smaller than that of the coarse-pore screen plate 61, the pore size of the fine-pore screen plate 63 is smaller than that of the middle-pore screen plate 62, so that the small fish can enter the hollow circular truncated cone pipe 67 through the holes in the three screen plates, the pore size of the fine-pore screen plate 63 is equal to that of the fishing net frame 6, the small fish can swim out and slide away through the fine-pore screen plate 63 and the fishing net frame 6, and the environment-friendly effect is achieved.

Specifically, referring to fig. 4, a rubber ring 33 is fixedly sleeved on the top of the inner wall of the sealing groove 32, the rubber ring 33 can cover and seal the top of the sealing groove 32, and the inner walls of the rubber ring 33 and the rubber water-blocking ring 34 are both in contact with the outer wall of the connecting rope 4, so that the gap between the rubber ring 33 and the rubber water-blocking ring 34 and the connecting rope 4 is small.

The working principle is as follows: when the fishing net rack is used, the two buoys 1 and the fishing net rack 6 can be thrown in a target area, then the motor 2 is controlled to rotate forwards and backwards, the motor 2 drives the electric push rod 21 to rotate to wind or release the connecting ropes 4, the two connecting ropes 4 can pull the fishing net rack 6 to lift, the fishing net rack 6 is convenient to fish fishes at different depths, at the moment, the time relay 1 can be controlled to open the bait throwing machine 64, the bait throwing machine 64 sprays materials into the fishing net rack 6, then one connecting rope 4 is directly lifted to keep the other connecting rope 4 still, so that the fishing net rack 6 is inclined, the sprayed materials are obliquely discharged into other areas in the fishing net rack 6, when people need to control the buoyancy of the buoys 1, the electric push rod 21 can be extended, the first bevel gear 23 is meshed with the second bevel gear 24, at the moment, the motor 2 can drive the threaded rod 25 to rotate through the electric push rod 21 and the two bevel gears after running, under the limiting of the buoy 1, the threaded rod 25 can drive the square plate 3 to lift, water in the buoy is discharged from the through hole 15 through the square plate 3, the buoyancy adjustment of the buoy 1 is completed, a distance exists between the rubber inclined ring 41 and the chute 35, so that when the rubber inclined ring 41 ascends along with the connecting rope 4, the water brought up by the rubber inclined ring 41 can flow down through the distance between the rubber inclined ring 41 and the chute 35, the water is difficult to enter the sealing groove 32, when the connecting rope 4 descends, the rubber inclined ring 41 can be contacted with the middle part of the inner wall of the sealing groove 32, part of water remained in the sealing groove 32 is pumped out like a 'needle cylinder' rubber plug, the water cannot overflow to the top of the square plate 3, the parts such as the motor 2 and the like at the top of the inner wall of the buoy 1 are protected against water, and the fish entering the fishing net rack 6 with different sizes are classified and screened through the difference of the apertures of the coarse mesh plate 61, the middle mesh plate 62 and the fine mesh plate 53, and the big other end of cavity round platform pipe 67 one end is little, make the fish enter into and just can't travel backward and escape in catching the corresponding region of rack 6, make the fish of not equidimension specification stranded in catching the corresponding region of rack 6, and multistage waterproof electric telescopic handle extension 51 back can be with flotation pontoon 1 jack-up, make flotation pontoon 1 keep away from the surface of water, cooperation connection rope 4 can pull fishing rack 6 from the surface of water this moment, be convenient for people at the surface of water rotating baffle 65, come to take out the fish in the fishing rack 6 through the hole that is blocked by baffle 65, will catch rack 6 and drop into the aquatic after taking out.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.