CN112655666B - Middle and upper layer trawl device - Google Patents
Middle and upper layer trawl device Download PDFInfo
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- CN112655666B CN112655666B CN202011505346.9A CN202011505346A CN112655666B CN 112655666 B CN112655666 B CN 112655666B CN 202011505346 A CN202011505346 A CN 202011505346A CN 112655666 B CN112655666 B CN 112655666B
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- net bag
- open end
- trawl
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Abstract
The invention discloses a middle-upper layer trawl device, aiming at solving the defects of slow opening speed and retraction phenomenon of the open end of a tuck net of the traditional trawl device. The novel fishing net comprises a net bag and two Y-shaped trawl ropes respectively connected to the left side and the right side of the net bag, wherein the front end of the net bag is open, a plurality of floating blocks are mounted on the upper side edge of the open end of the net bag, a balance weight is mounted on the lower side edge of the open end of the net bag, a plurality of canvases arranged at intervals are connected to the upper side edge of the open end of the net bag, sinking hanging chains are arranged below the canvases, the lower ends of the canvases are connected with the sinking hanging chains, positioning sleeves are mounted on the left side and the right side of the open end of the net bag, adjusting ropes are connected to the two ends of the sinking hanging chains, and the adjusting ropes penetrate out of the front ends of the adjusting ropes after penetrating through the rear ends of the positioning sleeves. The middle-upper layer trawl device can ensure that the open end of the trawl is quickly opened and is not easy to retract after being opened, thereby being beneficial to the capture of aquatic products.
Description
Technical Field
The invention relates to a fishing trawl, in particular to a middle and upper layer trawl device.
Background
The trawl utilizes the movement of the ship to drag the fishing gear to move forward in the sea bottom or seawater, and forces the fishing gear to enter the net bag through fishing objects such as fishes, shrimps, crabs and the like in the water area, thereby achieving the aim of fishing. The trawl operation is flexible, the adaptability is strong, and the production efficiency is high. Modern trawl fishing gear can be used for fishing fishes, cephalopods, shellfish and crustaceans; not only can be used for catching objects whose habitat is only several meters and dozens of meters in depth, but also can be used for catching deep sea species whose habitat is several kilometers in depth. After the trawl fishing gear is transferred to the aquatic, the counter weight of side sinks under the open end, and the floater of side floats on the open end to make the opening open, along with the in-process of moving ahead of boats and ships with the aquatic products trawl net in. Although the trawl opening can be opened through the counterweight and the floating ball, the opening speed is slow, and the trawl is retracted after being opened, so that aquatic products are not captured easily.
Disclosure of Invention
In order to overcome the defects, the invention provides a middle-upper layer trawl device, which can ensure that the open end of the trawl is quickly opened and is not easy to retract after being opened, and is beneficial to capturing aquatic products.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a well upper trawl net device, including the string bag, connect the trawl rope in two Y shapes of the string bag left and right sides respectively, string bag front end opening, a plurality of floating blocks of side installation are served to the string bag opening, side installation counter weight under the string bag opening, the canvas that a plurality of intervals set up is connected to the side on the string bag opening, the canvas below sets up the sling chain that sinks, the canvas lower extreme all is connected with the sling chain that sinks, the position sleeve is all installed to the string bag opening left and right sides, the regulation rope is all connected at the sling chain both ends that sink, it wears out from adjusting the rope front end to adjust the rope after passing from the position sleeve rear end.
When the trawl device is used, the net bag is placed in water, the two trawl ropes are connected to the ship, the end parts of the adjusting ropes are also arranged on the ship, the upper side edge of the opening end of the net bag upwards floats under the action of the balance weight and the floating block, and the lower side edge of the opening end of the net bag sinks, so that the opening end of the net bag is opened. The action of gravity of the sling chain that sinks makes the canvas be in vertical state, along with moving ahead of string bag, thereby the canvas is lifted upwards for ascending lift of string bag backward, and the string bag open-ended of being convenient for opens fast, is difficult for contracting. Along with the constantly moving ahead of string bag, the aquatic products that catches constantly increase, and the resistance of string bag in-process that goes constantly increases, can adjust the angle of canvas through adjusting the rope this moment to reduce the resistance of string bag. During the regulation, the regulation rope tip on the pulling boats and ships, the regulation rope is with canvas lower extreme pull-up backward, reduces the area of overflowing of canvas to reduce the resistance of canvas to the string bag, just also reduced the power of pulling of trawl rope to the string bag. The middle-upper layer trawl device can ensure that the open end of the trawl is quickly opened and is not easy to retract after being opened, thereby being beneficial to the capture of aquatic products.
Preferably, the lower side of the open end of the net bag is connected with an installation seat, the installation seat is provided with a ratchet wheel and a pawl, the ratchet wheel is connected with a support rod, the end part of the support rod is connected with the upper side of the open end of the net bag, the outer wall of the ratchet wheel is provided with ratchets, and the end part of the pawl is inserted between the two ratchets to enable the support rod to rotate in a single direction from back to front.
Along with the expansion of the net bag opening, the support rod rotates upwards along with the net bag from back to front, and the support rod is connected to the ratchet wheel and can only rotate in a single direction, so that the support rod cannot rotate reversely after being supported, namely the net bag connected with the support rod cannot retract, and the support rod plays a good role in supporting the net bag opening.
Preferably, the mounting seat is rotatably provided with a gear, the mounting seat is provided with a sliding hole arranged along the front-back direction, a rack is arranged in the sliding hole, the rack is in meshing transmission with the gear, the end face of the gear is provided with a positioning groove, one end of the ratchet wheel is rotatably arranged in the positioning groove, and a plurality of pawls are uniformly distributed and are all arranged on the side wall of the positioning groove; and a positioning spring is arranged between the rear end of the rack and the sliding hole, the rear end of the rack is connected with a pull rope, and the pull rope is connected to the rear end of the net bag.
After the pocket is transferred to the aquatic, the trawl rope draws the pocket to make the pocket extend, the in-process that the pocket extends around the pocket stimulates the rack through the stay cord, makes the rack move backward, rack and gear engagement, therefore the rack drives the gear rotation in the in-process that removes, and the pawl of installing on the gear promotes the ratchet and rotates, thereby makes the ratchet further follow the backward forward to upward unidirectional rotation, accelerates the speed of opening of pocket open end.
Preferably, the mounting seat is provided with a connecting shaft, and the ratchet wheel and the gear are rotatably arranged on the connecting shaft. The arrangement of the connecting shaft facilitates the installation and arrangement of the gear and the ratchet wheel.
Preferably, the gear is installed at the upper end of the installation seat, an avoiding groove communicated with the sliding hole is formed in the upper surface of the installation seat, and the lower portion of the gear is arranged in the avoiding groove and is in meshed transmission with the rack. The structure arrangement is convenient for the meshing transmission of the rack and the gear.
Preferably, the lower end of the mounting seat is of a hemispherical structure. The hemispherical mounting seat has small resistance in the forward process.
Preferably, the counterweight is an iron chain. The iron chain is used as the balance weight, so that the net bag sinks quickly and is convenient to recycle.
Preferably, the rear end of the positioning sleeve is arranged behind the sinking sling chain. This arrangement ensures that the canvas can be turned up backwards.
Preferably, the upper side edge of the opening end of the net bag is connected with a sliding rope, the upper ends of the canvases are connected with floating balls, and the floating balls are slidably sleeved on the sliding rope.
Adjust the rope and can not turn up the canvas completely when stimulateeing the canvas, continue to stimulate one of them regulation rope this moment, make the floater slide on smooth rope, the floater leans on in proper order together to make canvas pile together, further reduce the overflow area of canvas, and then reduce the resistance that the string bag received.
Compared with the prior art, the invention has the beneficial effects that: the middle-upper layer trawl device can ensure that the open end of the trawl is quickly opened and is not easy to retract after being opened, thereby being beneficial to the capture of aquatic products.
Drawings
FIG. 1 is a schematic of one embodiment of the present invention;
FIG. 2 is a schematic view showing the structure of an open end of a string bag according to the present invention;
FIG. 3 is an enlarged partial schematic view of FIG. 1 of the present invention;
FIG. 4 is an enlarged partial schematic view of FIG. 2 of the present invention;
in the figure: 1. the net bag, 2, a net dragging rope, 3, a floating block, 4, a balance weight, 5, canvas, 6, a sinking sling chain, 7, a positioning sleeve, 8, an adjusting rope, 9, a mounting seat, 10, a ratchet wheel, 11, a pawl, 12, a support rod, 13, a ratchet, 14, a gear, 15, a sliding hole, 16, a rack, 17, a positioning groove, 18, a positioning spring, 19, a pull rope, 20, a connecting shaft, 21, an avoiding groove, 22, a sliding rope, 23 and a floating ball.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example (b): the utility model provides a well upper layer trawl device (see figure 1 to figure 4), including string bag 1, connect the trawl rope 2 of two Y shapes in the string bag left and right sides respectively, string bag front end opening, a plurality of kickbacks 3 of side installation on the string bag opening end, side installation counter weight 4 under the string bag opening end, the counter weight is the iron chain, the canvas 5 that a plurality of intervals set up is connected to string bag opening end side, the canvas below sets up the catenary 6 that sinks, the canvas lower extreme all is connected with the catenary that sinks, position sleeve 7 is all installed to the string bag opening end left and right sides, the position sleeve rear end is placed in the catenary rear that sinks, it all connects regulation rope 8 to sink the catenary both ends, it wears out from adjusting the rope front end after passing from the position sleeve rear end to adjust the rope.
The side is connected with mount pad 9 under the string bag open end, installs ratchet 10 and pawl 11 on the mount pad, connects vaulting pole 12 on the ratchet, and the vaulting pole tip is connected with string bag open end top side, is equipped with ratchet 13 on the ratchet outer wall, and pawl tip cartridge makes the vaulting pole can follow back forward unidirectional rotation that makes between two ratchets. A gear 14 is rotatably arranged on the mounting seat, a sliding hole 15 arranged along the front-back direction is formed in the mounting seat, a rack 16 is arranged in the sliding hole, the rack is in meshing transmission with the gear, a positioning groove 17 is formed in the end face of the gear, one end of a ratchet wheel is rotatably arranged in the positioning groove, and a plurality of pawls are uniformly distributed and are all arranged on the side wall of the positioning groove; a positioning spring 18 is arranged between the rear end of the rack and the sliding hole, the rear end of the rack is connected with a pull rope 19, and the pull rope is connected with the rear end of the net bag. The mounting seat is provided with a connecting shaft 20, and the ratchet wheel and the gear are rotatably arranged on the connecting shaft. The gear is installed in the mount pad upper end, is equipped with on the mount pad upper surface and dodges the groove 21 with the sliding hole intercommunication, and the gear lower part is arranged in dodging the groove and is engaged with the rack and drive. The lower end of the mounting seat is of a hemispherical structure. The upper side edge of the opening end of the net bag is connected with a sliding rope 22, the left side and the right side of the upper end of the canvas are both connected with floating balls 23, and the floating balls are slidably sleeved on the sliding rope.
When the trawl device is used, the net bag is placed in water, the two trawl ropes are connected to the ship, the end parts of the adjusting ropes are also arranged on the ship, the upper side edge of the opening end of the net bag upwards floats under the action of the balance weight and the floating block, and the lower side edge of the opening end of the net bag sinks, so that the opening end of the net bag is opened. Along with the expansion of the net bag opening, the support rod rotates upwards along with the net bag from back to front, and the support rod is connected to the ratchet wheel and can only rotate in a single direction, so that the support rod cannot rotate reversely after being supported, namely the net bag connected with the support rod cannot retract, and the support rod plays a good role in supporting the net bag opening. After the pocket is transferred to the aquatic, the trawl rope draws the pocket to make the pocket extend, the in-process that the pocket extends around the pocket stimulates the rack through the stay cord, makes the rack move backward, rack and gear engagement, therefore the rack drives the gear rotation in the in-process that removes, and the pawl of installing on the gear promotes the ratchet and rotates, thereby makes the ratchet further follow the backward forward to upward unidirectional rotation, accelerates the speed of opening of pocket open end. The gravity action of the suspension chain that sinks makes the canvas be in vertical state, and along with advancing of string bag, thereby the canvas is lifted backward for ascending lift of string bag, and the string bag open-ended of being convenient for opens fast, is difficult for retracting. Along with the constantly moving ahead of string bag, the aquatic products that catches constantly increase, and the resistance of string bag in-process that goes constantly increases, can adjust the angle of canvas through adjusting the rope this moment to reduce the resistance of string bag. During the regulation, the regulation rope tip on the pulling boats and ships, the regulation rope is with canvas lower extreme pull-up backward, reduces the area of overflowing of canvas to reduce the resistance of canvas to the string bag, just also reduced the power of pulling of trawl rope to the string bag. The middle-upper layer trawl device can ensure that the open end of the trawl net is quickly opened and is not easy to retract after being opened, thereby being beneficial to the capture of aquatic products.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.
Claims (7)
1. A middle and upper layer trawl device is characterized by comprising a net bag and two Y-shaped trawl ropes which are respectively connected to the left side and the right side of the net bag, wherein the front end of the net bag is open, a plurality of floating blocks are installed on the upper side edge of the open end of the net bag, a balance weight is installed on the lower side edge of the open end of the net bag, a plurality of canvases which are arranged at intervals are connected to the upper side edge of the open end of the net bag, sinking hanging chains are arranged below the canvases, the lower ends of the canvases are connected with the sinking hanging chains, positioning sleeves are installed on the left side and the right side of the open end of the net bag, adjusting ropes are connected to the two ends of the sinking hanging chains, and the adjusting ropes penetrate out of the front ends of the adjusting ropes after penetrating through the rear ends of the positioning sleeves; the lower side of the open end of the net bag is connected with an installation seat, a ratchet wheel and a pawl are installed on the installation seat, a support rod is connected to the ratchet wheel, the end part of the support rod is connected with the upper side of the open end of the net bag, ratchets are arranged on the outer wall of the ratchet wheel, and the end part of the pawl is inserted between the two ratchets to enable the support rod to rotate in a single direction from back to front; a gear is rotatably arranged on the mounting seat, sliding holes arranged along the front-back direction are formed in the mounting seat, a rack is arranged in each sliding hole, the rack is in meshing transmission with the gear, a positioning groove is formed in the end face of the gear, one end of a ratchet wheel is rotatably arranged in each positioning groove, and a plurality of pawls are uniformly distributed and are all arranged on the side wall of each positioning groove; and a positioning spring is arranged between the rear end of the rack and the sliding hole, the rear end of the rack is connected with a pull rope, and the pull rope is connected to the rear end of the net bag.
2. The middle and upper trawl apparatus according to claim 1, wherein the mounting base is provided with a connecting shaft, and the ratchet wheel and the gear are rotatably mounted on the connecting shaft.
3. The middle and upper trawl apparatus according to claim 1, wherein the gear is installed at an upper end of the installation base, an avoiding groove communicated with the sliding hole is formed on an upper surface of the installation base, and a lower portion of the gear is placed in the avoiding groove and is engaged with the rack for transmission.
4. The device as claimed in claim 1, wherein the lower end of the mounting base is formed in a hemispherical shape.
5. A mid-upper trawl apparatus according to any one of claims 1 to 4, wherein the counterweight is an iron chain.
6. The trawl apparatus for middle and upper floors as claimed in any one of claims 1 to 4, wherein the rear end of the positioning sleeve is placed behind the sinking sling.
7. The middle and upper layer trawl apparatus according to any one of claims 1 to 4, wherein the upper side of the open end of the net bag is connected with a sliding rope, the upper ends of the canvas are connected with floating balls, and the floating balls are slidably sleeved on the sliding rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011505346.9A CN112655666B (en) | 2020-12-18 | 2020-12-18 | Middle and upper layer trawl device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011505346.9A CN112655666B (en) | 2020-12-18 | 2020-12-18 | Middle and upper layer trawl device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112655666A CN112655666A (en) | 2021-04-16 |
| CN112655666B true CN112655666B (en) | 2022-09-13 |
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ID=75406761
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011505346.9A Active CN112655666B (en) | 2020-12-18 | 2020-12-18 | Middle and upper layer trawl device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112655666B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4914848A (en) * | 1988-02-08 | 1990-04-10 | Nichimo Co., Ltd. | Trawl net |
| CN2090160U (en) * | 1991-05-03 | 1991-12-11 | 威海网具厂 | Superficial drawn net |
| US5444933A (en) * | 1991-11-12 | 1995-08-29 | Kinoshita; Hiromi | Trawl fishing gear and trawl fishing method |
| WO2012004478A1 (en) * | 2010-07-09 | 2012-01-12 | Nymphea Environnement | Trawl equipment and trawl |
| CN204047661U (en) * | 2014-08-15 | 2014-12-31 | 浙江省海洋水产研究所 | Fishing cage |
| CN205030370U (en) * | 2015-08-17 | 2016-02-17 | 安徽理工大学 | Automatic three -dimensional shrimping ware of expansion |
| CN206390065U (en) * | 2017-01-17 | 2017-08-11 | 铜仁学院 | A kind of streams benthon Sampling nets and sampling cartridge are standby |
| CN111449029A (en) * | 2020-03-26 | 2020-07-28 | 江苏省海洋水产研究所 | Fry fishing device and fry fishing method |
| CN111869633A (en) * | 2020-05-25 | 2020-11-03 | 浙江海洋大学 | Rotary multi-net-bag trawl |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040068914A1 (en) * | 2000-10-02 | 2004-04-15 | Clark Wellard | Apparatus for ice fishing |
-
2020
- 2020-12-18 CN CN202011505346.9A patent/CN112655666B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4914848A (en) * | 1988-02-08 | 1990-04-10 | Nichimo Co., Ltd. | Trawl net |
| CN2090160U (en) * | 1991-05-03 | 1991-12-11 | 威海网具厂 | Superficial drawn net |
| US5444933A (en) * | 1991-11-12 | 1995-08-29 | Kinoshita; Hiromi | Trawl fishing gear and trawl fishing method |
| WO2012004478A1 (en) * | 2010-07-09 | 2012-01-12 | Nymphea Environnement | Trawl equipment and trawl |
| CN204047661U (en) * | 2014-08-15 | 2014-12-31 | 浙江省海洋水产研究所 | Fishing cage |
| CN205030370U (en) * | 2015-08-17 | 2016-02-17 | 安徽理工大学 | Automatic three -dimensional shrimping ware of expansion |
| CN206390065U (en) * | 2017-01-17 | 2017-08-11 | 铜仁学院 | A kind of streams benthon Sampling nets and sampling cartridge are standby |
| CN111449029A (en) * | 2020-03-26 | 2020-07-28 | 江苏省海洋水产研究所 | Fry fishing device and fry fishing method |
| CN111869633A (en) * | 2020-05-25 | 2020-11-03 | 浙江海洋大学 | Rotary multi-net-bag trawl |
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| CN112655666A (en) | 2021-04-16 |
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