CN105557644A - Drift gill net facilitating fishing - Google Patents
Drift gill net facilitating fishing Download PDFInfo
- Publication number
- CN105557644A CN105557644A CN201510943540.8A CN201510943540A CN105557644A CN 105557644 A CN105557644 A CN 105557644A CN 201510943540 A CN201510943540 A CN 201510943540A CN 105557644 A CN105557644 A CN 105557644A
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- China
- Prior art keywords
- cylinder body
- iron plate
- annular
- cylindrical shape
- piston body
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K71/00—Floating nets
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure
Abstract
The invention discloses a drift gill net facilitating fishing and aims to provide a drift gill net which facilitates fishing and can effectively solve the problem about seabed ghost fishing caused by the fact that a drift gill net sinks in the seabed and is very difficult to fish. The drift gill net comprises a square mesh, a plurality of floaters arranged on the upper edge of the square mesh and a plurality of counter weight devices suspended on the lower edge of the square mesh through connecting ropes, wherein each counter weight device comprises a cylindrical counter weight with closed upper and lower ends and an inserting rod, a top plate of the cylindrical counter weight is an iron plate easily corroded by seawater, an inserting hole is formed in the middle of the upper surface of the iron plate, a seal ring mounting groove is formed in the inner side surface of the inserting hole, and an inflatable seal ring is arranged in the seal ring mounting groove; an annular thinning groove is formed in the upper surface of the iron plate, the inserting hole is located on the inner side of the annular thinning groove, a first pre-tightening compression spring is arranged in the cylindrical counter weight, and the inserting rod is inserted into the inserting hole and sleeved with the inflatable seal ring.
Description
Technical field
The present invention relates to a kind of drift net, be specifically related to a kind of drift net being convenient to salvage.
Background technology
The rectangle mesh sheet that drift net uses one or more layers plastic cement silk to be made into, generally can combine multiple mesh sheet.There is multiple float in the upper limb system of drift net, and there is multiple balancing weight in the lower edge system of drift net, thus makes drift net vertical opening be located at position near close to sea level, waits for that fish are swum into and snarled by mesh.
Drift net in use often can be damaged by because of netting gear, and is discarded in marine site by fisherman.These are discarded in the drift net in marine site, and the part ball float appearance on time one long drift net comes off, damages, and causes drift net to be lowered into seabed in the effect of balancing weight; Once drift net sinks to seabed, be very difficult to salvage, cause seabed ghost to fish for, by heavy damage seabed ecotope.
Summary of the invention
The object of the invention is in order to overcome drift net in prior art sink to seabed be then very difficult to salvage, cause the problem that seabed ghost is fished for, a kind of drift net being convenient to salvage is provided, its can effectively solve drift net sink to seabed be then very difficult to salvage, seabed ghost is caused to fish for, by the problem of heavy damage seabed ecotope.
Technical scheme of the present invention is:
The drift net being convenient to salvage comprises a square mesh sheet, the weight-driven on the float on some upper limbs being arranged on square mesh sheet and some lower edges being suspended on square mesh sheet by connection cord, described weight-driven comprises cylindrical shape counterweight and the shank of upper and lower closed at both ends, the top board of described cylindrical shape counterweight is easily by the iron plate of seawater corrosion, the upper surface middle part of this iron plate is provided with spliced eye, spliced eye medial surface is provided with sealing ring mounting groove, be provided with gas-flow closure circle in sealing ring mounting groove, gas-flow closure circle is provided with charging connector, described iron plate upper surface is provided with annular thinning groove, described spliced eye is positioned at the inner side of annular thinning groove, the first pretension Compress Spring is provided with in described cylindrical shape counterweight, the lower end abutment of the first pretension Compress Spring is on the inner bottom surface of cylindrical shape counterweight, upper end is resisted against on the inner top surface of cylindrical shape counterweight, and the upper end of the first pretension Compress Spring is positioned at the inner side of annular thinning groove, described shank is plugged in spliced eye, and gas-flow closure snare is located on shank, the upper end of described connection cord is connected with the lower edge of square mesh sheet, the lower end of connection cord is connected with the upper end of shank.This programme be convenient to salvage drift net can effectively solve drift net sink to seabed be then very difficult to salvage, cause seabed ghost to fish for, by the problem of heavy damage seabed ecotope.
As preferably, described weight-driven also comprises rotten disconnected triggering releasing device, the disconnected releasing device that triggers of this corruption comprises the triggering cylinder body be arranged on the upper surface of iron plate, slidably be arranged on and trigger cylinder body upper piston body and lower piston body, connect the connecting rod of upper and lower piston body and be positioned at the ring baffle triggered directly over cylinder body, described ring baffle is fixed on by connector and triggers on cylinder body, and connector is positioned at the outside of annular thinning groove, the axis perpendicular of ring baffle and cylindrical shape counterweight, described triggering cylinder body is positioned at the inner side of annular thinning groove, the axis triggering cylinder body parallels with the axis of cylindrical shape counterweight, trigger the upper end open of cylinder body, lower end closed, the medial surface top of triggering cylinder body is provided with upper limit position block, the medial surface bottom of triggering cylinder body is provided with lower position block, and upper piston body and lower piston body are positioned between upper limit position block and lower position block, between triggering cylinder body inner bottom surface and lower piston body, the second pretension Compress Spring is provided with in described triggering cylinder body, described triggering cylinder body lateral surface is provided with and the first intercommunicating pore of the intracavity inter-connection triggering cylinder body and the second connecting through hole, the upper surface of described upper piston body is provided with the triggering push rod coaxial with triggering cylinder body, the end of triggering push rod is passed the upper end open of triggering cylinder body and is positioned at above triggering cylinder body, described gas-flow closure circle is provided with exhaust joint, and described first intercommunicating pore is connected by tube connector with between exhaust joint, when upper piston body is resisted against on upper limit position block: described first intercommunicating pore is positioned at the below of lower piston body, the second connecting through hole is between upper and lower piston body, instantly when piston body is resisted against on lower position block: described first intercommunicating pore and the second connecting through hole are between upper and lower piston body.
As preferably, ring baffle is provided with the guide through hole that axis parallels with the axis of cylindrical shape counterweight, and iron plate is provided with guide post, and guide post is positioned at the inner side of annular thinning groove, and guide post is through guide through hole.
As preferably, the axis of ring baffle and the dead in line of cylindrical shape counterweight.
As preferably, the lower surface of iron plate is provided with the corresponding easy fault trough of annular of annular thinning groove, and annular easily fault trough is V-shaped.
As preferably, in the middle part of the lateral surface of shank, be provided with floating ball body, and the buoyancy of floating ball body is less than the gravity of cylindrical shape counterweight.
As preferably, the thickness of iron plate is 2.1-4.2mm, and the groove depth of the thinning groove of described annular is 1.6-3.7mm.
As preferably, the spacing between the bottom surface of annular thinning groove and iron plate lower surface is 0.41-0.6 millimeter.
The invention has the beneficial effects as follows: can effectively solve drift net sink to seabed be then very difficult to salvage, cause seabed ghost to fish for, by the problem of heavy damage seabed ecotope.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation being convenient to the drift net salvaged of the present invention.
Fig. 2 is a kind of structural representation of weight-driven of the present invention.
Fig. 3 is the partial enlarged drawing at A place in Fig. 2.
Fig. 4 is the partial enlarged drawing at B place in Fig. 3.
In figure: square mesh sheet 1a, float 2a, connection cord 3a;
Weight-driven 1b: cylindrical shape counterweight 1, first pretension Compress Spring 2, iron plate 3, the thinning groove 4 of annular, shank 5, collar stop 51, floating ball body 6, link 7, rotten disconnected triggering releasing device 8, triggers cylinder body 81, ring baffle 82, guide post 83, triggers push rod 84, upper limit position block 85, upper piston body 86, second connecting through hole 87, lower piston body 88, second pretension Compress Spring 89, lower position block 810, first intercommunicating pore 811, annular is fault trough 9 easily, cross tube connector 10, exhaust joint 11, spliced eye 12, gas-flow closure circle 13, charging connector 14.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
As shown in Figure 1, a kind of drift net being convenient to salvage comprises square mesh sheet 1a, the weight-driven 1b on the float 2a on some upper limbs being arranged on square mesh sheet and some lower edges being suspended on square mesh sheet by connection cord 3a.
As shown in Figure 2 and Figure 3, weight-driven 1b comprises the cylindrical shape counterweight 1 of upper and lower closed at both ends, shank 5 and rotten disconnected triggering releasing device 8.The top board of cylindrical shape counterweight is easily by the iron plate 3 of seawater corrosion, and in the present embodiment, the material of iron plate is cast iron.Iron plate upper surface is provided with annular thinning groove 4.The lower surface of iron plate is provided with the easy fault trough 9 of the corresponding annular of annular thinning groove, and the easy fault trough of annular is V-shaped.The thickness of iron plate is 2.1-4.2mm, and in the present embodiment, the thickness of iron plate is 4.1mm.The groove depth of the thinning groove of annular is 1.6-3.7mm, and in the present embodiment, the groove depth of annular thinning groove is 3.5mm.Spacing between the annular bottom surface of thinning groove and iron plate lower surface is 0.41-0.6mm, and the spacing in the present embodiment between the bottom surface of annular thinning groove and iron plate lower surface is 0.61mm.The groove depth of the easy fault trough of annular is 0.21mm.
The upper surface middle part of iron plate is provided with spliced eye 12.The axis of spliced eye and the dead in line of cylindrical shape counterweight.Spliced eye is positioned at the inner side of annular thinning groove.Spliced eye medial surface is provided with sealing ring mounting groove.Gas-flow closure circle 13 is provided with in sealing ring mounting groove.Gas-flow closure circle is fixed on the medial surface of sealing ring mounting groove by adhesive.Gas-flow closure circle is provided with charging connector 14.Gas-flow closure circle is provided with exhaust joint 11.The first pretension Compress Spring 2 is provided with in cylindrical shape counterweight.The lower end abutment of the first pretension Compress Spring is on the inner bottom surface of cylindrical shape counterweight.The upper end of the first pretension Compress Spring is resisted against on the inner top surface of cylindrical shape counterweight, and the upper end of the first pretension Compress Spring is positioned at the inner side of annular thinning groove.The lower surface of iron plate is provided with annular stop projection, and annular stop projection is positioned at the inner side of annular thinning groove.The upper end of the first pretension Compress Spring is positioned at annular stop projection.
Shank is plugged in spliced eye.Gas-flow closure snare is located on shank.The upper end of shank is provided with link 7.Be provided with floating ball body 6 in the middle part of the lateral surface of shank, and the buoyancy of floating ball body is less than the gravity of cylindrical shape counterweight.The lateral surface bottom of shank is provided with collar stop 51, and collar stop is positioned at below floating ball body.Collar stop is positioned at the top of cylindrical shape counterweight.The upper end of connection cord is connected with the lower edge of square mesh sheet.The lower end of connection cord is connected with the upper end of shank, and in the present embodiment, the lower end of connection cord is connected with the link of shank upper end.
As shown in Figure 2, Figure 3, Figure 4, the rotten disconnected releasing device 8 that triggers comprises the triggering cylinder body 81 be arranged on the upper surface of iron plate, slidably be arranged on and trigger cylinder body upper piston body 86 and lower piston body 88, connect the connecting rod of upper and lower piston body and be positioned at the ring baffle 82 triggered directly over cylinder body.Ring baffle is fixed on by connector and triggers on cylinder body, and connector is positioned at the outside of annular thinning groove.The axis perpendicular of ring baffle and cylindrical shape counterweight; The axis of ring baffle and the dead in line of cylindrical shape counterweight.Shank is through ring baffle.Ring baffle is provided with the guide through hole that axis parallels with the axis of cylindrical shape counterweight.Iron plate is provided with guide post 83.Guide post parallels with the axis of cylindrical shape counterweight.Guide post is positioned at the inner side of annular thinning groove, and guide post is through guide through hole.
Trigger the inner side that cylinder body is positioned at annular thinning groove.The axis triggering cylinder body parallels with the axis of cylindrical shape counterweight.Trigger upper end open, the lower end closed of cylinder body.The medial surface top of triggering cylinder body is provided with upper limit position block 85.The medial surface bottom of triggering cylinder body is provided with lower position block 810, and upper piston body and lower piston body are positioned between upper limit position block and lower position block.Trigger in cylinder body and be provided with the second pretension Compress Spring 89 between triggering cylinder body inner bottom surface and lower piston body.Trigger cylinder body lateral surface and be provided with the first intercommunicating pore 811 and the second connecting through hole 87 with the intracavity inter-connection triggering cylinder body.The upper surface of upper piston body is provided with the triggering push rod 84 coaxial with triggering cylinder body.The end of triggering push rod is passed the upper end open of triggering cylinder body and is positioned at above triggering cylinder body.Trigger cylinder body to be positioned at immediately below ring baffle.First intercommunicating pore is connected by tube connector 10 with between exhaust joint.
When upper piston body is resisted against on upper limit position block: the first intercommunicating pore is positioned at the below of lower piston body, the second connecting through hole is between upper and lower piston body.
Instantly when piston body is resisted against on lower position block: the first intercommunicating pore and the second connecting through hole are between upper and lower piston body.
The concrete use procedure being convenient to the drift net salvaged of the present embodiment is as follows:
First, the lower end of shank is inserted in spliced eye from top to bottom, and make gas-flow closure snare be located on shank;
Then; Inflated in gas-flow closure circle by charging connector, gas-flow closure circle is expanded, thus shank is held tightly, shank is connected with cylindrical shape counterweight;
On the other hand, the present invention utilizes the top board of cylindrical shape counterweight to be that easily { common iron and steel (cast iron) rate of corrosion is in the seawater between annual 0.15 to 0.4 millimeter by the feature of the iron plate of seawater corrosion, its the darkest hot spot can reach 0.3 to 0.65 millimeter }, and on iron plate, be provided with annular thinning groove and annular easily fault trough; When the iron plate of cylindrical shape counterweight is for a long time by seawater corrosion, roughly can be penetrated by seawater corrosion in 1 year by the bottom surface place iron plate of the thinning groove of annular testing the present embodiment; Thus make the annularly thinning groove fracture being separated with cylindrical shape counterweight of the iron plate inside annular thinning groove under the effect of the first pretension Compress Spring, and by the first pretension Compress Spring jack-up.
Thus, when the part float on drift net comes off, damages, after drift net sinks to seabed, roughly in 1 year, under the effect of the first pretension Compress Spring, the iron plate made inside annular thinning groove is separated with cylindrical shape counterweight, and by the first pretension Compress Spring jack-up.
After the first pretension Compress Spring is by the iron plate jack-up inside thinning for annular groove, make triggering cylinder body moves under the effect of guide post.Triggering cylinder body move past in journey, when the upper end of triggering push rod is resisted against after on ring baffle, trigger push rod drive upper piston body and lower piston body are moved down, till lower piston body is resisted against on lower position block: now, first intercommunicating pore and the second connecting through hole between upper and lower piston body, thus make the gas in gas-flow closure circle by exhaust joint, cross the discharge of tube connector, the first intercommunicating pore and the second connecting through hole.
After the gas in gas-flow closure circle is discharged, gas-flow closure circle shrinks, thus release shank, shank is separated with cylindrical shape counterweight.After some cylindrical shape counterweight separation are separated with shank, drift net floats again by under the buoyancy of the floating ball body of float and shank.The drift net floating to sea can be undertaken salvaging, clearing up by refuse fishing vessel easily, thus can effectively solve drift net sink to seabed be then very difficult to salvage, cause seabed ghost to fish for, by the problem of heavy damage seabed ecotope.
In addition, the drift net being convenient to salvage of the present embodiment, in every day use process, when drift net does not carry out fishing operation, needs weight-driven to hang dry (even if weight-driven is dry), thus effectively extends the service life of weight-driven.
Claims (7)
1. be convenient to the drift net salvaged, it is characterized in that, comprise square mesh sheet, the weight-driven on the float on some upper limbs being arranged on square mesh sheet and some lower edges being suspended on square mesh sheet by connection cord;
Described weight-driven comprises cylindrical shape counterweight and the shank of upper and lower closed at both ends, the top board of described cylindrical shape counterweight is easily by the iron plate of seawater corrosion, the upper surface middle part of this iron plate is provided with spliced eye, spliced eye medial surface is provided with sealing ring mounting groove, be provided with gas-flow closure circle in sealing ring mounting groove, gas-flow closure circle is provided with charging connector, described iron plate upper surface is provided with annular thinning groove, described spliced eye is positioned at the inner side of annular thinning groove, the first pretension Compress Spring is provided with in described cylindrical shape counterweight, the lower end abutment of the first pretension Compress Spring is on the inner bottom surface of cylindrical shape counterweight, upper end is resisted against on the inner top surface of cylindrical shape counterweight, and the upper end of the first pretension Compress Spring is positioned at the inner side of annular thinning groove, described shank is plugged in spliced eye, and gas-flow closure snare is located on shank, the upper end of described connection cord is connected with the lower edge of square mesh sheet, the lower end of connection cord is connected with the upper end of shank.
2. the drift net being convenient to salvage according to claim 1, it is characterized in that, described weight-driven also comprises rotten disconnected triggering releasing device, the disconnected releasing device that triggers of this corruption comprises the triggering cylinder body be arranged on the upper surface of iron plate, slidably be arranged on and trigger cylinder body upper piston body and lower piston body, connect the connecting rod of upper and lower piston body and be positioned at the ring baffle triggered directly over cylinder body
Described ring baffle is fixed on by connector and triggers on cylinder body, and connector is positioned at the outside of annular thinning groove, the axis perpendicular of ring baffle and cylindrical shape counterweight;
Described triggering cylinder body is positioned at the inner side of annular thinning groove, the axis triggering cylinder body parallels with the axis of cylindrical shape counterweight, trigger the upper end open of cylinder body, lower end closed, the medial surface top of triggering cylinder body is provided with upper limit position block, the medial surface bottom of triggering cylinder body is provided with lower position block, and upper piston body and lower piston body are positioned between upper limit position block and lower position block, between triggering cylinder body inner bottom surface and lower piston body, the second pretension Compress Spring is provided with in described triggering cylinder body, described triggering cylinder body lateral surface is provided with and the first intercommunicating pore of the intracavity inter-connection triggering cylinder body and the second connecting through hole, the upper surface of described upper piston body is provided with the triggering push rod coaxial with triggering cylinder body, the end of triggering push rod is passed the upper end open of triggering cylinder body and is positioned at above triggering cylinder body, described gas-flow closure circle is provided with exhaust joint, and described first intercommunicating pore is connected by tube connector with between exhaust joint,
When upper piston body is resisted against on upper limit position block: described first intercommunicating pore is positioned at the below of lower piston body, the second connecting through hole is between upper and lower piston body;
Instantly when piston body is resisted against on lower position block: described first intercommunicating pore and the second connecting through hole are between upper and lower piston body.
3. the drift net being convenient to salvage according to claim 1, it is characterized in that, described ring baffle is provided with the guide through hole that axis parallels with the axis of cylindrical shape counterweight, and iron plate is provided with guide post, guide post is positioned at the inner side of annular thinning groove, and guide post is through guide through hole.
4. the drift net being convenient to salvage according to Claims 2 or 3, is characterized in that, the axis of described ring baffle and the dead in line of cylindrical shape counterweight.
5. the drift net being convenient to salvage according to claim 1 or 2 or 3, it is characterized in that, the lower surface of described iron plate is provided with the corresponding easy fault trough of annular of annular thinning groove, and the easy fault trough of annular is V-shaped.
6. the drift net being convenient to salvage according to claim 1 or 2 or 3, it is characterized in that, the thickness of described iron plate is 2.1-4.2mm, and the groove depth of the thinning groove of described annular is 1.6-3.7mm.
7. the drift net being convenient to salvage according to claim 6, it is characterized in that, the spacing between the bottom surface of the thinning groove of described annular and iron plate lower surface is 0.41-0.6 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943540.8A CN105557644B (en) | 2015-12-16 | 2015-12-16 | A kind of drift net convenient for salvaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943540.8A CN105557644B (en) | 2015-12-16 | 2015-12-16 | A kind of drift net convenient for salvaging |
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| Publication Number | Publication Date |
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| CN105557644A true CN105557644A (en) | 2016-05-11 |
| CN105557644B CN105557644B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510943540.8A Active CN105557644B (en) | 2015-12-16 | 2015-12-16 | A kind of drift net convenient for salvaging |
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| CN (1) | CN105557644B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697001A (en) * | 2019-11-04 | 2020-01-17 | 中国科学院海洋研究所 | Recovery device and recovery method of seabed-based observation system without release function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697001A (en) * | 2019-11-04 | 2020-01-17 | 中国科学院海洋研究所 | Recovery device and recovery method of seabed-based observation system without release function |
| CN110697001B (en) * | 2019-11-04 | 2023-12-01 | 中国科学院海洋研究所 | Recovery device and recovery method of seabed-based observation system without release function |
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| CN105557644B (en) | 2018-06-19 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160511 Assignee: Zhejiang Haihan Ecological Technology Co.,Ltd. Assignor: Zhejiang Marine Fisheries Research Institute Contract record no.: X2022330000259 Denomination of invention: A flow gill net convenient for fishing Granted publication date: 20180619 License type: Common License Record date: 20220706 |
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