CN109717157A - Trawling gear and method - Google Patents
Trawling gear and method Download PDFInfo
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- CN109717157A CN109717157A CN201910177743.9A CN201910177743A CN109717157A CN 109717157 A CN109717157 A CN 109717157A CN 201910177743 A CN201910177743 A CN 201910177743A CN 109717157 A CN109717157 A CN 109717157A
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- cylinder
- bait
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- intranet
- sliding door
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Abstract
The invention discloses a kind of trawling gear and methods, the cylinder-shaped outer net of cylinder-shaped Intranet and upper and lower ends opening including upper and lower ends opening, pass through annular mesh sheet connection between cylinder-shaped Intranet and cylinder-shaped outer sieve bottom, the size of mesh of cylinder-shaped Intranet, cylinder-shaped outer net and annular mesh sheet is all the same, is equipped with several bracing rings on the net outside cylinder-shaped Intranet and cylindrical shape；Cylinder-shaped Intranet upper end is equipped with circular slab, and circular slab lower surface is equipped with several first bait boxs, and bait is full of in first bait box, and the first bait box is equipped with the first sliding door, and the first sliding door is equipped with the first unlocking mechanism；The present invention, which has, both guarantees the characteristics of normally catching, ensuring that the sustainable development of fishery resources.
Description
Technical field
The present invention relates to trawl apparatus technical fields, more particularly, to a kind of trawlnet that can effectively avoid fishery resources exhaustion
Device and method.
Background technique
China's marine fishery resources very abundant, feature also determine the diversified fishing style in China, as trawlnet,
It throws the net, numerous operation modes such as gill net, in order to make marine fishery resources sustainable use, the minimum net of the equal bull trawl in different regions
Mesh dimensioned standard, still, since when hauling, big fish has blocked the escape route of small fish, big fish and small fish are mutual
It mutually squeezes, even if being used for meeting trawlnet as defined in standard, also results in a certain number of small fish and caught up, caused
The destructions of fishery resources.
Summary of the invention
Goal of the invention of the invention is to overcome trawlnet in the prior art to will lead to a certain number of small fish and caught
The deficiency come up provides a kind of trawling gear and method that can effectively avoid fishery resources exhaustion.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of trawling gear, the cylinder-shaped outer net of cylinder-shaped Intranet and upper and lower ends opening including upper and lower ends opening, cylinder
By annular mesh sheet connection between shape Intranet and cylinder-shaped outer sieve bottom, cylinder-shaped Intranet, cylinder-shaped outer net and annular mesh sheet
Size of mesh is all the same, is equipped with several bracing rings on the net outside cylinder-shaped Intranet and cylindrical shape；Cylinder-shaped Intranet upper end is equipped with
Circular slab, circular slab lower surface are equipped with several first bait boxs, are full of bait, the first bait box in first bait box
It is equipped with the first sliding door, the first sliding door is equipped with the first unlocking mechanism；Cylinder-shaped outer net upper end be equipped with circle, circular slab and
Circle passes through connection frame and connect with guiding vertical frame, and connection frame and guiding vertical frame rotation connection, guiding vertical frame, which is equipped with, is used for band
Two lifting motors that dynamic connection frame moves up and down, guiding vertical frame be set to ship on support arm connect, support arm be set to
Rotary electric machine connection on device for hoisting, controller respectively with steering motor, boom hoisting, rotary electric machine, two lifting motors, each
A first unlocking mechanism and display electrical connection.
The present invention will not lift by crane netting gear at once, but netting gear state in a vertical shape is made to be retained in water when fishing terminates
In, at this point, the fish in annular cylindrical space will not squeeze mutually in relaxation state, then flow out bait, to make size
Small fish, which enters in cylinder-shaped Intranet, feeds bait, and as the decline of bait is escaped from cylinder-shaped Intranet lower end；And size is big
Fish also stay in annular cylindrical space, both ensure that normal fishing, also the small fish of size freeed, ensure that fishery resources
Sustainable development.
Preferably, the connection frame includes two cross bars connecting with circle, the rectangle frame in the middle part of two cross bars,
Left connecting rod between two cross bar left ends and the right connecting rod between two cross bar right ends；Rectangle frame and two cross
Bar connection, rectangle frame are connect with level board upper surface；The guiding vertical frame includes upper plate, lower roof plate, is set to upper plate, lower top
The upper end of the vertical screw rod in a left side and right vertical screw rod on plate, Zuo Shuxiang screw rod and right vertical screw rod passes through bearing and upper plate connects
Connect, the lower end of Zuo Shuxiang screw rod and right vertical screw rod passes through bearing and connect with lower roof plate, every cross bar respectively with Zuo Shuxiang
Screw rod and right vertical wire rod thread are cooperatively connected, and two lifting motors connect with left vertical screw rod and right vertical screw rod upper end respectively
Connect, upper plate is equipped with water level sensor, and rectangle frame is equipped with sonar contact instrument, water level sensor and sonar survey meter with control
Device electrical connection processed.
Preferably, the cylindrical shape is outer to be equipped with several plastic tubes on the net, the second bait is equipped on every plastic tube
Box is full of bait in the second bait box, and the second bait box is equipped with the second sliding door, and the second sliding door is equipped with the second unlocking machine
Structure；Every plastic tube is connect with air pump, and all air pumps and all second unlocking mechanisms are electrically connected with the controller.
Preferably, first unlocking mechanism includes the opening on the first bait case, first sliding door position
In opening inner side, first sliding door one end is connect by tension spring with the first bait case, and the first sliding door other end is equipped with iron plate,
Electromagnet, iron plate and electromagnet are equipped in first bait case by magnetic connection, electromagnet is electrically connected with the controller, the first push-and-pull
The handle that door exterior surface is equipped with convenient for push-and-pull.
A kind of method of trawling gear, includes the following steps:
(5-1) opens ship to the waters of fishing, and controller controls rotary electric machine rotational support arm, keeps guiding vertical frame in a vertical shape
State, controller control boom hoisting and drive support arm decline, enter guiding vertical frame in water, water level sensor detects at upper plate
Water level, controller control upper plate after H meters of the water surface, boom hoisting stops working；
(5-2) with the movement of ship, it is empty that fish enters the annular tubular that cylinder-shaped Intranet, cylinder-shaped outer net and annular mesh sheet are surrounded
Between in；
During fishing, sonar contact instrument detects the shoal of fish, and controller controls two according to the detection result of the shoal of fish
Lifting motor work, makes circle be directed at shoal of fish position；
(5-3) when fishing terminates, controller controls rotary electric machine and drives support arm rotation, keeps guiding vertical frame horizontal
State controls each first unlocking mechanism and respectively opens each first sliding door；
Bait flows out, and the small fish of size, which enters in cylinder-shaped Intranet, in annular cylindrical space feeds bait, and under bait
Drop is escaped from cylinder-shaped Intranet lower end；
(5-4) controller control boom hoisting drives to drop on support arm, will be in fish fishing to ship.
Preferably, being equipped with several plastic tubes outside cylinder-shaped on the net, it is equipped with the second bait box on every plastic tube, the
Bait is full of in two bait boxs, the second bait box is equipped with the second sliding door, and the second sliding door is equipped with the second unlocking mechanism；Often
Plastic tube is connect with air pump, and all air pumps and all second unlocking mechanisms are electrically connected with the controller；(5-3) further include as
Lower step:
Controller controls air pump and inflates to each plastic tube, to cylinder-shaped outer net lateral expansion, control after each plastics tube swelling
Device controls each second unlocking mechanism and respectively opens each second sliding door；
Bait outflow, feeds bait in the water that the small fish of size enters except cylinder-shaped outer net in annular cylindrical space, and with
The movement of bait and escape.
Therefore, the invention has the following beneficial effects: the small fishes of size to escape from cylinder-shaped Intranet lower end, and size is big
Fish also stay in annular cylindrical space, both ensure that normal fishing, ensured that the sustainable development of fishery resources.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention；
Fig. 2 is connection frame of the invention, a kind of structural schematic diagram for being oriented to vertical frame and support arm；
Fig. 3 is a kind of cross-sectional view of the first bait box of the invention；
Fig. 4 is a kind of functional block diagram of the invention.
In figure: cylinder-shaped Intranet 1, cylinder-shaped outer net 2, annular mesh sheet 3, connection frame 4, guiding vertical frame 5, support arm 6, lifting
Device 7, rotary electric machine 8, controller 9, display 10, circular slab 11, bracing ring 21, circle 22, air pump 23, plastic tube 24,
Two bait boxs 25, the first bait box 111, the first sliding door 112, the first unlocking mechanism 113, cross bar 41, rectangle frame 42, left connection
Bar 43, right connecting rod 44, lifting motor 51, upper plate 52, lower roof plate 53, Zuo Shuxiang screw rod 54, right vertical screw rod 55, sonar are visited
Survey instrument 421, water level sensor 521, opening 1131, tension spring 1132, iron plate 1133, electromagnet 1134, handle 1136.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
Embodiment 1
Embodiment as shown in Figure 1 is a kind of trawling gear, and cylinder-shaped Intranet 1 and upper and lower ends including upper and lower ends opening are opened
The cylinder-shaped outer net 2 of mouth is connected between cylinder-shaped Intranet and cylinder-shaped outer sieve bottom by annular mesh sheet 3, cylinder-shaped Intranet, circle
The size of mesh of tubular outer net and annular mesh sheet is all the same, is equipped with multiple bracing rings on the net outside cylinder-shaped Intranet and cylindrical shape
21；Cylinder-shaped Intranet upper end is equipped with circular slab 11, and circular slab lower surface is equipped with multiple first bait boxs 111, the first bait box
In be full of bait, the first bait box be equipped with the first sliding door 112, the first sliding door be equipped with the first unlocking mechanism 113；Cylinder
Shape outer net upper end is equipped with circle 22, connect, connects with guiding vertical frame 5 as shown in Fig. 2, circular slab and circle pass through connection frame 4
Frame and guiding vertical frame rotation connection, guiding vertical frame are equipped with two lifting motors 51 for driving connection frame to move up and down, lead
It is connect to vertical frame with the support arm 6 being set on ship, support arm is connect with the rotary electric machine 8 being set on boom hoisting 7, such as Fig. 4 institute
Show, controller 9 respectively with steering motor, boom hoisting, rotary electric machine, two lifting motors, each first unlocking mechanism and aobvious
Show that device 10 is electrically connected.
As shown in Fig. 2, connection frame includes two cross bars connecting with circle 41, the rectangle frame in the middle part of two cross bars
42, the left connecting rod 43 between two cross bar left ends and the right connecting rod 44 between two cross bar right ends；Rectangle frame
It is connect with two cross bars, rectangle frame is connect with level board upper surface；Guiding vertical frame includes upper plate 52, lower roof plate 53, is set to upper
The upper end of the vertical screw rod 54 in a left side and right vertical screw rod 55 on top plate, lower roof plate, Zuo Shuxiang screw rod and right vertical screw rod passes through
Bearing is connect with upper plate, and the lower end of Zuo Shuxiang screw rod and right vertical screw rod passes through bearing and connect with lower roof plate, every cross bar
It is cooperatively connected respectively with left vertical screw rod and right vertical wire rod thread, two lifting motors are perpendicular with left vertical screw rod and the right side respectively
It being connected to screw rod upper end, upper plate is equipped with water level sensor 521, and rectangle frame is equipped with sonar contact instrument 421, as shown in figure 4,
Water level sensor and sonar survey meter are electrically connected with the controller.
As shown in figure 3, the first unlocking mechanism includes the opening 1131 on the first bait case, first sliding door position
In opening inner side, first sliding door one end is connect by tension spring 1132 with the first bait case, and the first sliding door other end is equipped with
Iron plate 1133 is equipped with electromagnet 1134, iron plate and electromagnet in first bait case and passes through magnetic connection, electromagnet and controller electricity
Connection, the first push-and-pull door exterior surface are equipped with the handle 1136 convenient for push-and-pull.
A kind of method of trawling gear, includes the following steps:
(5-1) opens ship to the waters of fishing, and controller controls rotary electric machine rotational support arm, keeps guiding vertical frame in a vertical shape
State, controller control boom hoisting and drive support arm decline, enter guiding vertical frame in water, water level sensor detects at upper plate
Water level, controller control upper plate after 2 meters of the water surface, boom hoisting stops working；
(5-2) with the movement of ship, it is empty that fish enters the annular tubular that cylinder-shaped Intranet, cylinder-shaped outer net and annular mesh sheet are surrounded
Between in；
During fishing, sonar contact instrument detects the shoal of fish, and controller controls two according to the detection result of the shoal of fish
Lifting motor work, makes circle be directed at shoal of fish position；
(5-3) when fishing terminates, controller controls rotary electric machine and drives support arm rotation, keeps guiding vertical frame horizontal
State controls each first unlocking mechanism and respectively opens each first sliding door；
Bait flows out, and the small fish of size, which enters in cylinder-shaped Intranet, in annular cylindrical space feeds bait, and under bait
Drop is escaped from cylinder-shaped Intranet lower end；
(5-4) controller control boom hoisting drives to drop on support arm, will be in fish fishing to ship.
Embodiment 2
Embodiment 2 includes all structures and methods parts of embodiment 1, is set on the net as shown in Figure 1, the cylindrical shape of embodiment 2 is outer
There are 4 plastic tubes 24, the second bait box 25 is equipped on every plastic tube, is full of bait, the second bait box in the second bait box
It is equipped with the second sliding door, the second sliding door is equipped with the second unlocking mechanism；Every plastic tube is connect with air pump 23, Suo Youqi
Pump and all second unlocking mechanisms are electrically connected with the controller.
(5-3) further includes following steps:
Controller controls air pump and inflates to each plastic tube, to cylinder-shaped outer net lateral expansion, control after each plastics tube swelling
Device controls each second unlocking mechanism and respectively opens each second sliding door；
Bait outflow, feeds bait in the water that the small fish of size enters except cylinder-shaped outer net in annular cylindrical space, and with
The movement of bait and escape.
It should be understood that this embodiment is only used to illustrate the invention but not to limit the scope of the invention.In addition, it should also be understood that,
After having read the content of the invention lectured, those skilled in the art can make various modifications or changes to the present invention, these etc.
Valence form is also fallen within the scope of the appended claims of the present application.
Claims (6)
1. a kind of trawling gear, characterized in that the circle of cylinder-shaped Intranet (1) and upper and lower ends opening including upper and lower ends opening
Tubular outer net (2) is connected between cylinder-shaped Intranet and cylinder-shaped outer sieve bottom by annular mesh sheet (3), cylinder-shaped Intranet, cylinder
The size of mesh of shape outer net and annular mesh sheet is all the same, is equipped with several bracing rings on the net outside cylinder-shaped Intranet and cylindrical shape
(21)；Cylinder-shaped Intranet upper end is equipped with circular slab (11), and circular slab lower surface is equipped with several first bait boxs (111), institute
It states full of bait in the first bait box, the first bait box is equipped with the first sliding door (112), and the first sliding door is equipped with first and opens
Latch mechanism (113)；Cylinder-shaped outer net upper end is equipped with circle (22), and circular slab and circle pass through connection frame (4) and guiding vertical frame
(5) it connects, connection frame and guiding vertical frame rotation connection are oriented to two that vertical frame is equipped with for driving connection frame to move up and down and rise
It drops motor (51), guiding vertical frame is connect with the support arm (6) being set on ship, support arm and the rotation being set on boom hoisting (7)
Motor (8) connection, controller (9) are opened with steering motor, boom hoisting, rotary electric machine, two lifting motors, each first respectively
Latch mechanism and display (10) electrical connection.
2. trawling gear according to claim 1, characterized in that the connection frame includes two cross bars connecting with circle
(41), the rectangle frame (42) in the middle part of two cross bars, left connecting rod (43) between two cross bar left ends and is set to two
Right connecting rod (44) between cross bar right end；Rectangle frame is connect with two cross bars, and rectangle frame is connect with level board upper surface；Institute
Stating guiding vertical frame includes upper plate (52), lower roof plate (53), and the vertical screw rod (54) in a left side and the right side on upper plate, lower roof plate are perpendicular
To screw rod (55), the upper end of Zuo Shuxiang screw rod and right vertical screw rod passes through bearing and connect with upper plate, Zuo Shuxiang screw rod and the right side
The lower end of vertical screw rod passes through bearing and connect with lower roof plate, every cross bar respectively with the vertical screw rod spiral shell in left vertical screw rod and the right side
Line is cooperatively connected, and two lifting motors are connect with left vertical screw rod and right vertical screw rod upper end respectively, and upper plate is equipped with water level
Sensor (521), rectangle frame are equipped with sonar contact instrument (421), and water level sensor and sonar survey meter are electrically connected with controller
It connects.
3. trawling gear according to claim 1, characterized in that described cylinder-shaped outer on the net equipped with several plastic tubes
(24), it is equipped on every plastic tube the second bait box (25), bait is full of in the second bait box, the second bait box is equipped with the
Two sliding doors, the second sliding door are equipped with the second unlocking mechanism；Every plastic tube is connect with air pump (23), all air pumps and institute
There is the second unlocking mechanism to be electrically connected with the controller.
4. trawling gear according to claim 1 or 2 or 3, characterized in that first unlocking mechanism includes being set to first
Opening (1131) on bait case, first sliding door are located at opening inner side, and first sliding door one end passes through tension spring (1132)
It is connect with the first bait case, the first sliding door other end is equipped with iron plate (1133), and electromagnet is equipped in the first bait case
(1134), by magnetic connection, electromagnet is electrically connected with the controller for iron plate and electromagnet, and the first push-and-pull door exterior surface is equipped with just
In the handle (1136) of push-and-pull.
5. a kind of method of trawling gear according to claim 2, characterized in that include the following steps:
(5-1) opens ship to the waters of fishing, and controller controls rotary electric machine rotational support arm, keeps guiding vertical frame in a vertical shape
State, controller control boom hoisting and drive support arm decline, enter guiding vertical frame in water, water level sensor detects at upper plate
Water level, controller control upper plate after H meters of the water surface, boom hoisting stops working；
(5-2) with the movement of ship, it is empty that fish enters the annular tubular that cylinder-shaped Intranet, cylinder-shaped outer net and annular mesh sheet are surrounded
Between in；
During fishing, sonar contact instrument detects the shoal of fish, and controller controls two according to the detection result of the shoal of fish
Lifting motor work, makes circle be directed at shoal of fish position；
(5-3) when fishing terminates, controller controls rotary electric machine and drives support arm rotation, keeps guiding vertical frame horizontal
State controls each first unlocking mechanism and respectively opens each first sliding door；
Bait flows out, and the small fish of size, which enters in cylinder-shaped Intranet, in annular cylindrical space feeds bait, and under bait
Drop is escaped from cylinder-shaped Intranet lower end；
(5-4) controller control boom hoisting drives to drop on support arm, will be in fish fishing to ship.
6. the method for trawling gear according to claim 5, cylinder-shaped outer on the net equipped with several plastic tubes, every plastics
It is equipped with the second bait box on pipe, bait is full of in the second bait box, the second bait box is equipped with the second sliding door, the second push-and-pull
Door is equipped with the second unlocking mechanism；Every plastic tube is connect with air pump, all air pumps and all second unlocking mechanisms with control
Device electrical connection processed；It is characterized in that (5-3) further includes following steps:
Controller controls air pump and inflates to each plastic tube, to cylinder-shaped outer net lateral expansion, control after each plastics tube swelling
Device controls each second unlocking mechanism and respectively opens each second sliding door；
Bait outflow, feeds bait in the water that the small fish of size enters except cylinder-shaped outer net in annular cylindrical space, and with
The movement of bait and escape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177743.9A CN109717157A (en) | 2019-03-10 | 2019-03-10 | Trawling gear and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177743.9A CN109717157A (en) | 2019-03-10 | 2019-03-10 | Trawling gear and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109717157A true CN109717157A (en) | 2019-05-07 |
Family
ID=66302147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910177743.9A Withdrawn CN109717157A (en) | 2019-03-10 | 2019-03-10 | Trawling gear and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109717157A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111642469A (en) * | 2020-06-04 | 2020-09-11 | 中国水产科学研究院东海水产研究所 | Bag-shaped net and method for acquiring escape rate of caught object from trawl mesh by using same |
| CN114223584A (en) * | 2021-12-17 | 2022-03-25 | 上海海洋大学 | Floating comprehensive oplegnathus fasciatus wild training device |
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| US3797444A (en) * | 1971-04-19 | 1974-03-19 | H Stubbs | Towing guide |
| US4373286A (en) * | 1980-10-16 | 1983-02-15 | Robison Thomas E | Reaction gill net |
| US4509286A (en) * | 1981-11-16 | 1985-04-09 | Martin John | Trawl shrimp cage |
| CN103548783A (en) * | 2013-10-24 | 2014-02-05 | 中国海洋大学 | Device and method for actively stimulating juvenile fishes to escape |
| CN204670180U (en) * | 2015-05-04 | 2015-09-30 | 徐先平 | The large-scale automatic fishing device in a kind of fish pond |
| CN106719481A (en) * | 2016-12-06 | 2017-05-31 | 浙江省海洋水产研究所 | A kind of Eco-friendly Trawl gear Choice tests device |
| CN206371351U (en) * | 2017-01-16 | 2017-08-04 | 韦剑山 | Double-deck floatable fishing net |
| CN107646804A (en) * | 2017-11-17 | 2018-02-02 | 孙鹏程 | A kind of ecology fishing net cage |
| CN207083913U (en) * | 2017-06-14 | 2018-03-13 | 巢湖亚塑网具制造有限公司 | A kind of cage fishing net |
-
2019
- 2019-03-10 CN CN201910177743.9A patent/CN109717157A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3797444A (en) * | 1971-04-19 | 1974-03-19 | H Stubbs | Towing guide |
| US4373286A (en) * | 1980-10-16 | 1983-02-15 | Robison Thomas E | Reaction gill net |
| US4509286A (en) * | 1981-11-16 | 1985-04-09 | Martin John | Trawl shrimp cage |
| CN103548783A (en) * | 2013-10-24 | 2014-02-05 | 中国海洋大学 | Device and method for actively stimulating juvenile fishes to escape |
| CN204670180U (en) * | 2015-05-04 | 2015-09-30 | 徐先平 | The large-scale automatic fishing device in a kind of fish pond |
| CN106719481A (en) * | 2016-12-06 | 2017-05-31 | 浙江省海洋水产研究所 | A kind of Eco-friendly Trawl gear Choice tests device |
| CN206371351U (en) * | 2017-01-16 | 2017-08-04 | 韦剑山 | Double-deck floatable fishing net |
| CN207083913U (en) * | 2017-06-14 | 2018-03-13 | 巢湖亚塑网具制造有限公司 | A kind of cage fishing net |
| CN107646804A (en) * | 2017-11-17 | 2018-02-02 | 孙鹏程 | A kind of ecology fishing net cage |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111642469A (en) * | 2020-06-04 | 2020-09-11 | 中国水产科学研究院东海水产研究所 | Bag-shaped net and method for acquiring escape rate of caught object from trawl mesh by using same |
| CN114223584A (en) * | 2021-12-17 | 2022-03-25 | 上海海洋大学 | Floating comprehensive oplegnathus fasciatus wild training device |
| CN114223584B (en) * | 2021-12-17 | 2023-02-17 | 上海海洋大学 | Floating comprehensive oplegnathus fasciatus wild training device |
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Application publication date: 20190507 |
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