CN210695564U

CN210695564U - Wild clam worm catching device

Info

Publication number: CN210695564U
Application number: CN201921666160.4U
Authority: CN
Inventors: 周洪磊; 谢祥乐; 兰昌花; 黄江帆; 陈依芳; 黄木贵
Original assignee: Fujian Yangze Marine Biological Technology Co ltd
Current assignee: Fujian Yangze Marine Biological Technology Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-09
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to a wild clam worm catching device, which comprises a cylinder body, the upper part of which is provided with an upper opening and the lower part of which is provided with a lower opening, wherein the cylinder wall of the cylinder body is densely provided with a plurality of meshes which can allow water to pass through but can not allow clam worms to pass through; the lower part of the cylinder body is connected with a first counterweight component which enables the upper opening position of the cylinder body to be higher than the lower opening position all the time; the well upper portion of barrel inner chamber be equipped with the big little pocket of lower extreme opening of an upper end opening, the upper end opening outer peripheral edges of pocket and the interior wall of barrel form annular closed connection, the lower extreme opening side of pocket is equipped with the LED light source device that can give out light in order to attract clamworm and the lower extreme opening that makes the pocket can not float the second counter weight part of upper end because of buoyancy, wild clamworm fishing device still including making the barrel float in the floating collar of aquatic. The device can be used for automatically catching wild clamworms, the caught clamworms cannot be lost, and parent clamworms can be conveniently transferred.

Description

Wild clam worm catching device

Technical Field

The utility model relates to a wild clam worm fishing device.

Background

The nereis is a male-female variant, has no obvious reproduction system, forms gonads only in the prophase of reproduction, falls into body cavities after sexual cells are mature, and discharges sperms and ova in the reproduction period for in vitro fertilization. There are two breeding seasons in one year, which are the high tide periods of the lunar calendar of four and five months and the lunar calendar of nine and ten months, respectively. Sexually mature individuals float to the water surface in the tidal period collectively, discharge sperms and ova, finish natural fertilization, and sink to the water bottom to die. Fertilized eggs float to rivers to enter the mouth along with tidal water and then hatch out, a great part of the parents of the clamworm come from sexual mature heteronereis caught from the mouth of the river along the sea in the breeding season, and no catching device capable of effectively catching the clamworm exists in the market at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wild, the device is catched to clamworm, uses the device can not only catch wild clamworm automatically, catches the back clamworm moreover and can not wander away to conveniently shift the clamworm parent.

The utility model provides a wild clam worm fishing device which characterized in that: the device comprises a cylinder body, wherein the upper part of the cylinder body is provided with an upper opening, the lower part of the cylinder body is provided with a lower opening, the lower opening of the cylinder body is hinged with a lower cover capable of opening and closing the lower opening, and the cylinder wall of the cylinder body is densely provided with a plurality of meshes which can allow water to penetrate and prevent clamworms from penetrating; the lower part of the cylinder body is connected with a first counterweight component which enables the upper opening position of the cylinder body to be higher than the lower opening position all the time;

the middle upper part of the inner cavity of the barrel is provided with a mesh bag with a large opening at the upper end and a small opening at the lower end, the outer periphery of the opening at the upper end of the mesh bag is in annular closed connection with the inner peripheral wall of the barrel, an LED light source device capable of emitting light to attract clamworms and a second counterweight part capable of preventing the opening at the lower end of the mesh bag from floating to the upper end due to buoyancy are arranged beside the opening at the lower end of the mesh bag, and a waterproof device is sleeved on the periphery of the LED light source device;

the wild clam worm fishing device further comprises a floating ring which enables the cylinder body to float in water, the floating ring is connected with the upper opening of the cylinder body through a rope, and an enough gap which can enable the clam worm to pass through is reserved between the floating ring and the upper opening.

The principle of catching the clamworms by the wild clamworm catching device is as follows: the device is placed in seawater, the floating ring floats on seawater, the whole barrel is sunk into the seawater, the clearance between the floating ring and the net cage allows clamworms to pass through, the clamworms enter the net cage from the clearance between the floating ring and the net cage through the LED light source, and then the clamworms enter the bottom of the barrel through the net bag to be captured.

Further, in order to have enough space for the passage of clamworms, unnecessary tangling is also avoided: the clearance between the floating ring and the upper opening is 10-20 cm.

Further, in order to prevent the clam worms from laying eggs and sperms when catching, thereby causing waste: the wild clam worm catching device also comprises a cloth sleeve which is sleeved outside the middle lower part of the cylinder body and below the bottom and is used for collecting sperms and ova, and a bracket which keeps the cloth sleeve and the cylinder body at intervals is arranged between the cloth sleeve and the middle lower part of the cylinder body and between the cloth sleeve and the bottom; the lower cover is provided with a plurality of pores which can allow sperms and ova discharged by the clamworm to pass through but can not allow the clamworm to pass through; the upper opening of the cloth cover is sleeved with the peripheral wall fixed on the cylinder body and sleeved with an external connecting position higher than the upper opening of the mesh bag and the cylinder body.

Further, for convenience of collection of sperm and eggs: the bottom of the cloth cover is provided with a lower opening of the cloth cover, and a rope for opening and closing the lower opening of the cloth cover is arranged on the lower opening of the cloth cover.

Further, in order to ensure that the sperms and the ova of the clamworm cannot flow out of the side wall to cause waste: the support includes that a plurality of top-down cover locate the outer annular ring of the internal perisporium of cloth cover, the cover locates the outer interior annular ring of barrel periphery wall and many connect in the radial branch between outer annular ring and the different positions of interior annular ring.

Further, in order to prevent the device from being washed away by seawater, the device is convenient to fix: the wild clam worm catching device also comprises a traction rope for drawing the device.

Compared with the prior art, the utility model discloses following beneficial effect has: the device can be used for automatically catching wild clamworms, the caught clamworms cannot be lost, and parent clamworms can be conveniently transferred. After further improvement, the device can collect the ovum and the sperm when the clam worms are caught.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Detailed Description

The invention will be further elucidated with reference to a specific embodiment and an accompanying drawing.

Example 1

As shown in figure 1, the wild clam worm catching device is characterized in that: the device comprises a cylinder body 1, the upper part of which is provided with an upper opening 1-1 and the lower part of which is provided with a lower opening 1-2, wherein the lower opening 1-2 of the cylinder body 1 is hinged with a lower cover 2 which can open and close the lower opening 1-2, and a plurality of meshes 1-3 which can allow water to pass through but can not allow clamworms to pass through are densely distributed on the cylinder wall of the cylinder body 1; the lower part of the cylinder body 1 is connected with a first counterweight component 9 which ensures that the position of an upper opening 1-1 of the cylinder body 1 is always higher than the position of a lower opening 1-2;

the middle upper part of the inner cavity of the cylinder body 1 is provided with a mesh bag 3 with an upper end opening 3-1 larger than the lower end opening 3-2 smaller than the inner cavity of the cylinder body 1, the outer periphery of the upper end opening 3-1 of the mesh bag 3 is connected with the inner peripheral wall of the cylinder body 1 in an annular closed manner, an LED light source device 4 capable of emitting light to attract clamworms and a second counterweight part 5 which enables the lower end opening 3-2 of the mesh bag 3 not to float to the upper end due to buoyancy are arranged beside the lower end opening 3-2 of the mesh bag 3, and a waterproof device is sleeved on the outer periphery of the LED light source device;

the wild clam worm catching device further comprises a floating ring 6 which enables the cylinder body 1 to float in water, the floating ring 6 is connected with the upper opening 1-1 of the cylinder body 1 through a rope 8, and a sufficient gap which can allow clam worms to pass through is reserved between the floating ring 6 and the upper opening 1-1.

The principle of catching the clamworms by the wild clamworm catching device is as follows: the device is placed in seawater, the floating ring floats on seawater, the whole barrel is sunk into the seawater, the clearance between the floating ring and the net cage allows clamworms to pass through, the clamworms enter the net cage from the clearance between the floating ring and the net cage through the LED light source, and then the clamworms enter the bottom of the barrel through the net bag 3 and are captured.

Example 2

As shown in fig. 2, in order to have enough space for clamworm to pass through, the present embodiment also avoids unnecessary entanglement: the clearance between the floating ring 6 and the upper opening 1-1 is 10-20 cm. The clearance between the floating ring 6 of the device and the upper opening 1-1 can be any clearance between 10 cm and 20 cm.

This embodiment is in order to prevent that the clamworm is just laying ovum and sperm when catching to cause the waste: the wild clam worm catching device also comprises a cloth sleeve 7 which is sleeved outside the middle lower part and below the bottom of the cylinder body 1 and is used for collecting sperms and ova, and a bracket 10 which keeps the cloth sleeve and the cylinder body 1 at a certain interval is arranged between the cloth sleeve and the middle lower part and between the cloth sleeve and the bottom of the cylinder body 1; a plurality of pores 2-1 which can allow sperms and ova discharged by the clamworm to pass through but can not allow the clamworm to pass through are arranged on the lower cover 2; the upper opening of the cloth cover 7 is sleeved and fixed on the peripheral wall of the cylinder body 1 and is externally sleeved and connected with a connecting position higher than the upper opening 3-1 of the mesh bag 3 and the cylinder body 1.

This example facilitates the collection of sperm and eggs: the bottom of the cloth cover 7 is provided with a cloth cover lower opening 7-1, and the cloth cover lower opening 7-1 is provided with a rope 7-2 for opening and closing the cloth cover lower opening 7-1.

This embodiment can guarantee that the sperm of clamworm and ovum can not caused the waste by flowing out from the lateral wall: the support 10 comprises a plurality of outer annular rings 10-1 which are sleeved on the inner peripheral wall of the cloth cover 7 from top to bottom, inner annular rings 10-2 which are sleeved on the outer peripheral wall of the cylinder body 1, and a plurality of radial supporting rods 10-3 which are connected between different parts of the outer annular rings 10-1 and the inner annular rings 10-2.

This embodiment is in order to prevent that the device can not be washed away by the sea water, and convenient fixed: the wild clam worm catching device also comprises a traction rope 11 for drawing the device.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.

Claims

1. The utility model provides a wild clam worm fishing device which characterized in that: the device comprises a cylinder body (1) with an upper opening (1-1) at the upper part and a lower opening (1-2) at the lower part, wherein the lower opening (1-2) of the cylinder body (1) is hinged with a lower cover (2) capable of opening and closing the lower opening (1-2), and a plurality of meshes (1-3) which can allow water to pass through but can not allow clamworms to pass through are densely distributed on the cylinder wall of the cylinder body (1); the lower part of the cylinder body (1) is connected with a first counterweight component (9) which enables the position of an upper opening (1-1) of the cylinder body (1) to be always higher than the position of a lower opening (1-2);

the middle upper part of the inner cavity of the barrel body (1) is provided with a mesh bag (3) with an upper end opening (3-1) and a larger lower end opening (3-2) and a smaller lower end opening (3-2), the outer periphery of the upper end opening (3-1) of the mesh bag (3) is in annular closed connection with the inner peripheral wall of the barrel body (1), an LED light source device (4) capable of emitting light to attract clamworms and a second counterweight part (5) capable of preventing the lower end opening (3-2) of the mesh bag (3) from floating to the upper end due to buoyancy are arranged beside the lower end opening (3-2) of the mesh bag (3), and a waterproof device is sleeved on the outer periphery of the LED light source device (4);

the wild clam worm catching device further comprises a floating ring (6) which enables the cylinder body (1) to float in water, the floating ring (6) is connected with the upper opening (1-1) of the cylinder body (1) through a rope (8), and a sufficient gap which can enable the clam worm to pass through is reserved between the floating ring (6) and the upper opening (1-1).

2. The wild clam worm catching device according to claim 1, characterized in that: the clearance between the floating ring (6) and the upper opening (1-1) is 10-20 cm.

3. The wild clam worm catching device according to claim 1, characterized in that: the wild clam worm catching device also comprises a cloth sleeve (7) which is sleeved outside the middle lower part and below the bottom of the cylinder body (1) and used for collecting sperms and ova, and a bracket (10) which keeps the cloth sleeve and the cylinder body (1) at a certain interval is arranged between the cloth sleeve and the middle lower part and between the cloth sleeve and the bottom of the cylinder body (1); a plurality of pores (2-1) which can allow sperms and ova discharged by the clamworm to pass through but can not allow the clamworm to pass through are arranged on the lower cover (2); the upper opening of the cloth cover (7) is sleeved and fixed on the peripheral wall of the cylinder body (1) and is externally sleeved and connected with the connecting position of the opening (3-1) at the upper end of the mesh bag (3) and the cylinder body (1).

4. The wild clam worm catching device according to claim 3, characterized in that: a lower cloth cover opening (7-1) is arranged at the bottom of the cloth cover (7), and a rope (7-2) for opening and closing the lower cloth cover opening (7-1) is arranged on the lower cloth cover opening (7-1).

5. The wild clam worm catching device according to claim 3, characterized in that: the support (10) comprises a plurality of outer annular rings (10-1) which are sleeved on the inner peripheral wall of the cloth sleeve (7) from top to bottom, inner annular rings (10-2) which are sleeved on the outer peripheral wall of the cylinder body (1), and a plurality of radial supporting rods (10-3) which are connected between different parts of the outer annular rings (10-1) and the inner annular rings (10-2).

6. The wild clam worm catching device according to any one of claims 1 to 5, characterized in that: the wild clam worm catching device also comprises a traction rope (11) for drawing the device.